US20250360350A1

US20250360350A1 - Exercise machine combining a physical weight resistance source and an electromechanical resistance source

Info

Publication number: US20250360350A1
Application number: US18/768,145
Authority: US
Inventors: Ivan Lukanov
Original assignee: Atletica Deutschland GmbH
Current assignee: Atletica Deutschland GmbH
Priority date: 2024-05-22
Filing date: 2024-07-10
Publication date: 2025-11-27
Also published as: EP4653059A1

Abstract

The present application generally relates to an exercise machine. The exercise machine comprises a body, a physical weight, an electromechanical resistance module, a pulley system attached to the body and a user interface. The physical weight provides a first resistance source for a first cable, while the electromechanical resistance module provides a second resistance source for a second cable. The pulley system is configured to integrate a resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached. The user interface is connected to the adapter and serves to apply a force against the single output resistance.

Description

TECHNICAL FIELD

The present application generally relates to an exercise machine. The exercise machine comprises a body, a physical weight, an electromechanical resistance module, a pulley system attached to the body and a user interface. The physical weight provides a first resistance source for a first cable, while the electromechanical resistance module provides a second resistance source for a second cable. The pulley system is configured to integrate simultaneously a resistance from the first and second resistance sources into one single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached. The user interface is connected to the adapter and serves to apply a force against the single output resistance.

BACKGROUND

An exercise machine is a mechanical device designed to support and optimize physical exercises. These machines are commonly used in gyms, rehabilitation centers, and can also be used in private homes to train various muscle groups, improve physical fitness, and achieve specific health goals. There are different types of exercise machines, such as cardio machines that enhances cardiovascular fitness, strength machines that increases muscle strength and mass, and flexibility and stretching machines that improves body flexibility and mobility. Multifunctional machines combine various functions to provide comprehensive training.
Fitness strength machines with weight stacks, also known as selectorized machines, are a common type of exercise machines. These machines typically feature weight stacks ranging from 45 kg to 200 kg, often segmented into 5 kg or 10-pound increments. The weight blocks, often referred to as “Iron Weights”, are connected to a system of cables and pulleys, providing the necessary resistance for a variety of cable-based exercises. These machines are the industry standard in both commercial and home gym environments.
Examples of exercises that can be performed on selectorized machines include lat-pulldowns, chest flyes, seated rowing, shoulder presses, and leg curls. Users can adjust the weight resistance by moving a pin between different weight blocks, allowing for customization of the workout intensity.
However, this adjustment process can be inconvenient as each adjustment requires the user to interrupt the exercise and move away from the training position to change the weight by moving the pin. In addition, conventional machines are not equipped with sensors that focus on analyzing and recording combined weights moved by the first and second resistance sources.
There are already solutions of exercise machines on the market that use electrical motors, flywheels, or magnetic brake systems to provide resistance instead of physical iron weights. These solutions rely on one (non-iron weight) resistance source to provide variable resistance to the user.
However, a disadvantage of these electromechanical resistance systems is, by fully cancelling the iron weights, the loss of haptic feedback that users experience with traditional physical weights. When moving physical weights, users feel the inertia, mass, and gravity of the iron weights, which enhances neuromuscular coordination as they control the weight throughout the exercise. Additionally, there is a psychological and motivational effect associated with visually moving physical weights. Experience shows that it is more positive for an athlete's psyche to move real weights.

PRIOR ART

US20200254309 A1 and U.S. Pat. No. 7,163,488 B2 each relate to an exercise machine comprising a barbell connected to two cables. The two cables are attached to an electromechanical resistance system that can be adjusted to either assist or resist the lifting of the barbell.
Although the two machines disclosed in the documents combine physical weights with an electromechanical resistance system, they are specifically designed for barbell use with free weights. Consequently, the range of exercises that can be performed with this resistance combination is limited.

OBJECT OF THE INVENTION

The object of the invention was therefore to eliminate the disadvantages of the prior art and to provide an exercise machine that offers a diverse range of exercises without limitations to a barbell-based training, enables an easy weight adjustment for different training regimens, and provides realistic haptic feedback.

DISCLOSURE OF THE INVENTION

The object of the invention is solved by the features of the independent claims. Advantageous embodiments of the invention are described in the dependent claims.
In a first aspect, the application relates to an exercise machine comprising a body, a physical weight, an electromechanical resistance module, a pulley system attached to the body, and a user interface. The physical weight provides a first resistance source for a first cable, while the electromechanical resistance module provides simultaneously a second resistance source for a second cable. The pulley system is configured to integrate simultaneously a resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached. The user interface is connected to the adapter and serves to apply a force against the single output resistance as well as preferably the possibility to adjust the second resistance source.
The integration of a physical weight and an electromechanical resistance module into a single exercise machine offers a versatile workout experience, allowing users to benefit from the tactile feedback of traditional weights as well as the dynamic, software adjustable and precise control of electronic resistance. Physical weights offer high haptic feedback, allowing users to feel inertia, mass, and visually see the movement of the iron weights, which can improve neuromuscular coordination and motivation. In contrast, a fully electrical system would lack this benefit. This invention preserves the tactile and visual feedback of physical weights, while incorporating the advantages of electronic or electromechanical resistance.
The preferred exercise machine enables non-linear force distribution throughout an exercise set without adjusting the physical weight of the iron weight stacks. Users can engage with conventional iron weights while the electromechanical resistance module dynamically ads, increases or decreases resistance within a workout set or even withing a single repetition. This enables a dynamic muscle tension curve, which is widely recognized by scientists as optimal for developing muscle strength.
In addition, the preferred exercise machine can be used for any conventional exercise typically performed with traditional weights. This includes, but is not limited to, the bench press, squat, and deadlift (the three main powerlifting movements), as well as the incline bench press, shoulder press, bent-over row, and lat-pulldown. The preferred exercise machine is also adaptable to various forms and shapes of strength machines. The primary differences lie in the shape of the electromechanical resistance module, the positions of the physical iron weight stacks, and the cable routings of both resistance sources. However, the main principle of combining simultaneously physical weights and an electromechanical resistance module into a Hybrid System remains consistent across different machines.
The pulley system's ability to simultaneously combine resistances from two different sources into a single output enables seamless transition between resistance types, facilitating complex workout routines without the need for manual adjustment of iron weights or settings. The user interface connected to the adapter provides a direct method for the user to engage with the exercise machine by preferably using only one finger (thumb), ensuring that the force applied is effectively resisted by the combined output, thus offering a consistent and measurable training stimulus.
A physical weight in the context of the application refers preferably to a solid, tangible object used to provide resistance during workouts. Typically made of materials like iron, steel or plastic, these weights can also comprise other forms like water tanks or similar objects. They generate resistance through their mass and gravity, requiring users to physically move and control them.
Additionally, a cable refers to a strong, flexible wire or rope used to transmit force and provide resistance during workouts. These cables are typically made of durable materials like steel or high-tensile synthetic fibers, designed to withstand significant tension while connecting various components of exercise machines, allowing for smooth and controlled movement.
Preferably, a pulley system in this application refers to a mechanical arrangement of wheels and cables designed to guide and distribute resistance during workouts. This pulley system typically consists of multiple pulleys and cables that work together to redirect force, allowing for smooth and controlled movements.
A pulley is preferably a wheel mounted on an axle or shaft, designed to facilitate the movement and change the direction of a cable, rope or belt. It features preferably a groove or channel that keeps the cable securely in place. Typically, it includes bearings to ensure smooth operation and is constructed from durable materials such as metal or high-strength plastic. The pulley is usually mounted on robust brackets that attach to a machine. Some pulleys have an adjustment mechanism to alter the height or angle, and include safety features such as guards to prevent cable slippage and protect users. The wheel and groove have a smooth finish to minimize wear on the cable, and the entire assembly is preferably rated for a specific load capacity to ensure safe and effective operation.
In a preferred embodiment the pulley system comprises at least a first pulley and a second pulley, wherein the first pulley guides the first cable, and the second pulley guides the second cable in such way that the first cable and the second cable are oriented parallel to each other. The arrangement of the first and second pulleys to guide the cables parallel to each other ensures a balanced distribution of resistance. This allows the adapter, to which both cables are attached, to be positioned in such a way that any force applied to the adapter is evenly distributed between the two cables.
Alternatively, the pulley system may comprise at least one pulley. If a single pulley is used, it can be designed to have two parallelly aligned grooves or channels for receiving and guiding the first cable and second cable, respectively. It is to be understood that in such case the cables must already be aligned parallel before engaging with the pulley so that they can be received in the parallel channels or grooves.
Preferably, an adapter in the context of the application refers to a device or component that connects and integrates multiple resistance sources into a single output for use during workouts. This adapter joins cables from different resistance mechanisms, such as physical weights and electromechanical modules, ensuring they work together seamlessly. Examples include junction blocks that merge cables from different pulleys or connectors that unify the output from various resistance modules.
In a preferred embodiment, the first cable and the second cable are continuously attached to the adapter via a double cable coupling. The continuous attachment of both cables to the adapter via a double cable coupling means preferably that the first and second cables are permanently or uninterruptedly connected to the adapter. This ensures a reliable and secure connection, reducing the likelihood of cable slippage or detachment during intense workouts. The double cable coupling allows for equal distribution of force from the adapter to both cables, which can enhance the stability and consistency of resistance experienced by the user. The double cable coupling also eliminates the necessity to manually couple or decouple one of both resistance sources or the obligation to switch between both weight sources by manually attaching snap or spring safety hooks. This continues connection of both resistance sources increases safety and convenience.
A double cable coupling may be designed by incorporating a robust and precisely engineered housing that securely holds both cables in place. This housing could be constructed from high-strength materials such as reinforced steel or composite polymers to withstand the substantial forces exerted during use. The coupling mechanism may feature individual slots or channels for each cable, ensuring they remain parallel and evenly tensioned. Additionally, the design might include locking mechanisms, such as set screws or clamping plates, to further prevent any movement or loosening of the cables.
By having the first cable and the second cable continuously attached to the adapter, the electromechanical resistance module remains in an “always on” mode. This means that the electromechanical resistance must always be supplied with power and remain continuously activated to retract the second cable after it has been extended, even when the electromechanical resistance is not applying any resistance during an exercise. The preferred exercise machine is preferably specially designed so that both cables can always be pulled in parallel by the user. If the user chooses mode of pulling only physical weight, the electromechanical module provides almost zero resistance, just enough to pull the cable in.
In this regard, there is no need for the user to switch between resistance sources. The user can start a workout with physical weights and switch to a hybrid resistance workout by using a simple voice command or by pressing a control element, preferably by using just one finger, such as a button or rotating adjustment rings on the user interface. The electromechanical resistance module is preferably always connected to grid power for on-demand power and can be connected to the user's smartphone via Bluetooth or Wi-Fi.
To ensure continuous operation, a power source is provided to supply voltage to the electromechanical resistance. This can be achieved through various means. The proposed exercise machine may include a battery and/or a solar panel, or the electromechanical resistance module may have a connection that allows it to be plugged into the power grid.
Preferably, the first cable and the second cable may be attached to the adapter in such way that the adapter can pull the first cable and the second cable parallel to each other, when force is applied to the adapter. The force applied to the adapter is transmitted through the user interface, which is connected to the adapter. For example, when the user pulls the user interface, the force is directly applied to the adapter. The attachment of the cables to the adapter in a manner that allows parallel pulling action ensures a direct and efficient transfer of force from the user to the resistance sources, maximizing the effectiveness of each exercise performed. The parallel pulling ensures proper alignment adapter of the adapter.
The adapter may comprise a force application point for applying a force against the single output resistance, wherein the force application point is located centrally between the parallel-aligned first and second cables, and wherein the user interface is connected to the force application point. The centrally located force application point ensures balanced force distribution. By connecting the user interface directly to the force application point, the user can have improved control and feedback during exercise, enhancing the effectiveness of the workout.
Furthermore, the adapter may comprise two sleeves which respectively receive the first and second cables, wherein the first and second cables, which are guided in parallel, have a maximum distance from one another which lies in a range between 5 mm-200 mm, preferably a distance which lies in a range between 10 mm-100 mm, in particular a distance which lies in a range between 30 mm-80 mm. The specified range for the maximum distance between the parallel-aligned cables ensures consistent resistance and smooth operation, which can contribute to a more effective and comfortable workout experience. The close proximity of the cables ensures that the adapter remains stable and straight during exercises by the user, even when the resistance sources are significantly different, for instance when no or minimal resistance is applied by the electromechanical module while a high resistance is generated by a physical weight. The inclusion of two sleeves for the cables provides a secure and stable guide for the cables, reducing wear and tear and extending the lifespan of the machine.
In a further preferred embodiment the pulley system comprises four pulleys, wherein a first pulley and a third pulley guide the first cable and a second pulley and a fourth pulley guide the second cable, wherein the first pulley and the second pulley are arranged on a first axis, wherein the third pulley and the fourth pulley are arranged on a second axis, the first axis and the second axis being arranged parallel to each other. The arrangement of four pulleys with the first and third guiding the first cable, and the second and fourth guiding the second cable, allows for a more fluid and natural movement of the cables. By arranging the first and second pulleys on a first axis and the third and fourth pulleys on a second axis, parallel to each other, the machine can provide a consistent and predictable path for the cables, which can improve the user's coordination and reduce the risk of cable entanglement or snagging.
The first axis and the second axis may have a different distance in respect to an attachment surface of the body which is parallel aligned to the first axis and the second axis. Having the first and second axes at different distances from the attachment surface allows for better execution of exercises, as the cables are guided more effectively.
In the context of this application, the attachment surface of the body is a vertically oriented flat surface. It can be moved and fixed along a vertical axis, allowing the height of the pulleys and adapter to be adjusted. This height adjustability allows for performing a variety of exercises, accommodating different user heights, and enhancing the versatility and effectiveness of the workout.
Preferably, an electromechanical resistance module refers to a device that provides adjustable resistance during workouts using electrical and mechanical components. This module can precisely control the level of resistance through electronic means, offering dynamic and customizable workout experiences. Examples include motorized systems or flywheels that use electromagnetic braking to adjust resistance.
In a preferred embodiment the electromechanical resistance module comprises an electric motor with a winch on which the second cable can be wound and unwound. The integration of an electric motor with a winch for winding and unwinding the second cable enhances the precision and reliability of the resistance adjustments, allowing for smooth transitions and consistent resistance levels during operation. The use of an electric motor provides the advantage of automated control over the resistance levels, which can be programmatically adjusted to suit various exercise regimes, thereby offering a tailored workout experience to the user. The winch mechanism allows for compact storage of the second cable when not in use. The electric motor can preferably be a servo motor, a DC motor, and/or a brushless DC motor, ensuring high accuracy and control over the cable movements, allowing for precise adjustments and maintaining consistent tension throughout the exercise.
Furthermore, it is possible for the electric motor to be directly connected to the winch. Alternatively, a gearbox may be interposed between the electric motor and the winch, providing additional mechanical advantage and control over the cable movements.
In a preferred embodiment, the electromechanical resistance module comprises more than one electric motor and more than one winch each connected to an electric motor. This allows for multiple output resistances to be generated in an exercise machine, each combining electromechanical resistance with physical weight resistance. Additionally, an output resistance can be generated that is exclusively based on electromechanical resistance, without the combination with physical weight.
The electromechanical resistance module can, for example, house three electric servo motors, each with a power range between 500 W and 1000 W, along with a servo driver, a controller board, ground connection cables, and Bluetooth communication chips. Other configurations are also possible, where an electric servo motor with a power range of 50 W to 4000 W is used, or within a range of 250 W to 1200 W. The servo motors are not limited to these ranges.
In a further preferred embodiment the electromechanical resistance module comprises a housing which serves as a structural component of the body. The integration of the housing into the machine's body optimizes space usage, leading to a more compact and efficient design that can be advantageous in environments where space is at a premium. Using the housing as a structural element can potentially lower the manufacturing costs and complexity of the machine by reducing the number of separate components required, thus simplifying assembly and maintenance.
The electromechanical resistance module can preferably be mounted overhead in a fitness machine. Its compact design can reduce the overall depth of a power rack, making it more space efficient. This enables the development of more compact exercise machines, suitable for smaller workout areas and home gyms, while maintaining the tactile sensation and inertia of moving physical weights.
Moreover, the electromechanical resistance module can be used as a structural part, such as a crossbar, in a power rack. Its housing, for example made of a solid 1080×400×150 mm structure, is stable and stiff enough to replace the full connecting element of a power rack, typically referred to as a crossbar. By replacing the top crossbar of a power rack with this module, users can perform lat-pulldowns while saving between 70 cm and 100 cm in power rack depth. Mounting the electromechanical resistance module at the top of the machine also frees up valuable space at the bottom, which can be used for a bench or other equipment. This design provides the same shape and stability of a compact power rack but with a built-in electromechanical resistance module.
In this context, the housing is preferably constructed from durable materials such as metal, steel, or fiber-reinforced plastic, as well as other high-strength composites. This robust construction allows for example the electromechanical resistance module to be integrated into power racks as a structural component, replacing a traditional crossbar. By serving both as a structural element and a source of resistance, the electromechanical resistance module optimizes space and functionality in the workout setup.
In a further preferred embodiment, the electromechanical resistance module comprises a control unit with a data processing unit for controlling the second resistance source, memory and a communication unit for data communication. The inclusion of a control unit with a data processing unit, especially in combination with sensors measuring conventional iron-weights moved and electrical resistance provided, enables the machine to offer dynamic resistance adjustments based on real-time feedback. This can enhance the effectiveness of workouts by automatically adapting resistance to the user's performance. The communication unit allows for data exchange with external devices or networks, providing opportunities for remote monitoring, software updates, and integration with fitness tracking systems. The control unit's ability to manage the second resistance source ensures a seamless and user-friendly experience, as it can automatically calibrate resistance levels in response to programmed workout routines or user preferences.
In general, the user interface allows a user to exert force against a resistance in order to exercise muscles. The user interface may take a variety of forms, including (but not limited to) a single handle, a long bar handle, a lat pull-down handle, a rope, etc.
Additionally, embodiments are also possible in which the user interface may comprise means for providing an input signal to the control unit. The user interface's provision for input signals to the control unit allows users to easily customize their workout experience by selecting desired resistance levels, exercise durations, and other parameters, thereby improving user satisfaction and workout personalization. The means for providing input signals can include various user-friendly options such as buttons, rotational adjustment rings, touchscreens, or microphones for voice commands, which can enhance accessibility. By enabling direct user interaction with the control unit, the user interface facilitates immediate adjustments to the workout, allowing users to quickly respond to their own comfort and performance levels, which can lead to more effective and enjoyable exercise sessions. The user interface preferably comprises a communication unit and a rechargeable battery which allows to transmit the input signals to the electromechanical resistance module. It can also comprise a memory or a data processing unit.
Preferably, the user interface is designed as a handle featuring a rotational adjustment ring and a haptic button that allows the user to increase, decrease, or stop the electromechanical resistance. Operated with only one finger, this technology can be seen as a One-Thumb control. Different sizes and shapes of handles are preferably available depending on the exercise.
The user can start their training using only physical weights and activate the electromechanical resistance from the electromechanical resistance module with a simple thumb rotation on the handle. The handle can be battery-powered, and the battery can be charged with a USB-C cable by plugging it directly into the electromechanical resistance module. The signal from the handle may be transferred wirelessly to the electromechanical resistance module.
In a further preferred embodiment, the exercise machine comprises a sensor system configured to acquire the resistance of the first resistance source and/or the second resistance source and/or the single output resistance and/or the movement of the physical weight and/or the force applied to the adapter and/or the movement of the first cable, the second cable and/or the adapter. In this respect, the sensor system comprises means for providing acquired data to the control unit.
Preferably the sensor system comprises at least one sensor, a battery and a communication unit. Furthermore, the sensor system can comprise a data processing unit, a memory and a housing which accommodates all components.
The sensor system provides real-time feedback and enhanced precision, ensuring consistent resistance for effective workouts. It enables personalized workout programs tailored to individual needs and goals, while also improving safety by monitoring force and movement to prevent injuries. Users can track their progress and performance, and the control unit can automate adjustments for an optimized exercise experience. This system increases engagement and motivation through real-time data, making workouts more efficient and integrating seamlessly with fitness apps for comprehensive tracking and goal setting.
For example, the signals or acquired data from the sensor system can be combined, analyzed, cloud-stored and displayed to the user through a software application running on an external device such as a smartphone or tablet. The software application can also be configured to control the main settings of the electromechanical resistance module, including setting the resistance, switching between kg/lbs settings and providing the user with pre-defined exercise programs.
Preferably, the electromechanical resistance module and/or the sensor system and/or the user interface may be in data communication with an external device having a data processing unit and a communication unit. The sensor system may comprise means for providing acquired data to the external device. The user interface may comprise means for providing an input signal to the external device.
Moreover, the external device may be configured to process the provided data of the sensor system and/or the provided input data of the user interface and/or to transmit control commands to the electromechanical resistance module. The integration of an electromechanical resistance module and a sensor system in data communication with an external device enhances the interactivity and personalization of the workout experience, as it allows for real-time tracking and adjustment of exercise parameters based on user performance. The ability of the external device to process sensor data and user inputs, and to transmit control commands to the resistance module, enables the implementation of advanced training programs and routines that can dynamically adapt to the user's needs and progress.
The external device can be a smartphone, tablet, smartwatch, computer, or any other device with data processing and communication capabilities (without being limited to these options).
The system's design facilitates seamless integration with existing technology ecosystems, such as smartphones or computers, allowing users to leverage their devices for additional functionalities like workout logging, social sharing, or accessing a broader range of digital fitness services.
In a preferred embodiment, the training device is designed as a power rack attachment, a stand-alone tower, a squat rack, a half rack, a power rack or a strength and smith machine. The versatility of the exercise machine being configurable as various types of equipment offers users a multifunctional fitness solution that can be adapted to different training requirements and spatial conditions. The design allows for easy integration in both home gyms and professional fitness centers, the utility of the space and investment by serving multiple purposes and supporting a wide range of exercises. The adaptability of the machine to different shapes ensures that it can provide users at different fitness levels, from beginners to advanced athletes, with appropriate resistance and support for different types of strength training.
A Power Rack is preferably a large, cage-like structure with four vertical posts and horizontal bars at the top and bottom. It typically includes adjustable hooks and safety bars that can be moved to various heights. This equipment is highly versatile, allowing for a wide range of exercises beyond squats, such as bench presses, overhead presses, and deadlifts. Power Racks are available in multiple sizes and variations, including half racks, wall racks, foldable racks, each preferably with four or more posts.
In a power rack, a crossbar (also known as a crossbeam or stabilizer bar) is preferably a horizontal component or bar that connects the uprights or posts, contributing to the stability and structural integrity of the rack. Crossbars are essential for maintaining the shape and rigidity of the power rack, especially under heavy loads. As already mentioned before the crossbar of a power bar can for example be substituted by an electromechanical resistance module with a rigid housing.
A squat rack is preferably a simple form of a power rack. It consists of two vertical posts or a single connected unit that supports a barbell at a fixed or adjustable height. Squat racks may also have lat-pulldowns or smith machines attached to them.
Preferably, a strength machine is a piece of exercise machine designed to assist users in performing resistance training exercises. These machines typically utilize weight stacks, hydraulic resistance, or other mechanisms to provide adjustable resistance. Strength machines guide the user's movements along a fixed path, which can help ensure proper form and reduce the risk of injury. They are commonly used in gyms, fitness centers, and home workout setups.
A smith machine is preferably a weight training apparatus integrated into a strength machine or power rack, consisting of a barbell fixed within steel rails, allowing it to move vertically in a guided path. It is preferably designed for performing movements like squats, bench presses, and shoulder presses. The barbell can be locked at various heights using safety catches.
A power tower is preferably a fitness equipment designed for bodyweight exercises that target the upper body and core. It typically includes stations for pull-ups, chin-ups, dips, push-ups, and vertical knee raises. The power tower's structure consists preferably of a free-standing frame with padded grips and back supports to facilitate these exercises.
In a further aspect the application relates to a method for adjusting a force to be applied by a user to an exercise machine.
The exercise machine may comprise a body, a physical weight providing a first resistance source for a first cable, an electromechanical resistance module providing a second resistance source for a second cable, pulley system attached to the body, a user interface and a sensor system. The electromechanical resistance module may further comprise a control unit with a data processing unit for controlling the second resistance source and a communication unit for data communication. The pulley system is preferably configured to integrate the resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached. The user interface is preferably connected to the adapter for applying a force against the single output resistance, wherein the user interface comprises means for providing an input signal to the control unit. The sensor system is therefore preferably configured to acquire a resistance of the first resistance source and/or the second resistance source and/or the single output resistance and/or a movement of the physical weight and/or a force applied to the adapter and/or a movement of the first cable, the second cable and/or the adapter. The sensor system may comprise means for providing acquired data to the control unit.
The method can comprise the steps of applying a force against the single output resistance by the user interface, and/or of acquiring the movement of the physical weight, in particular a speed and/or an acceleration of the movement by the sensor system, and/or of providing the acquired data of the sensor system to the control unit of the electromechanical resistance module, and/or of detecting by the control unit of a decrease in the speed and/or acceleration in relation to previously acquired data by the sensor system, and of adjusting the second resistance source by the control unit.
This method can automatically respond to the user's condition using the captured sensor data and adjust the resistance of the electromechanical resistance module accordingly. For example, when the sensor system detects that the user is getting tired, indicated by slowing repetitions, it will decrease the electromechanical resistance. This enables the user to continue the workout without having to stop due to high weights or fatigue, a feature not possible with conventional exercise machine comprising iron weights.
Alternatively, the method can comprise the steps of applying a force against the single output resistance by the user interface, or of providing an input signal to the control unit by the user interface, and of adjusting the second resistance source by the control unit. The ability to adjust resistance through user input during a workout by moving only one thumb provides high flexibility in the exercise regimen, allowing users to quickly switch between different training modes, such as warm-up, endurance or strength, without interrupting the users workout flow.
In another alternative the method can comprise the steps of providing an input signal to the control unit of the electromechanical resistance module which sets the control unit in an automatic training mode, of applying a force against the single output resistance by the user interface, causing the physical weight to be lifted, of reducing the force against the single output resistance causing the physical weight to be lowered, and of adjusting the second resistance source by the control unit.
The automatic training mode simplifies the user experience by allowing the exercise machine to adjust resistance levels autonomously based on predetermined algorithms, which can optimize workouts for efficiency and effectiveness without constant user interaction. The input signal may be provided by a user interface or an external device.
In another alternative the user may use the electrical resistance module to fine tune the physical weight, such as conventional iron weights. As an example, a user may choose 40 kg iron weights as a training weight and add an electrical resistance equivalent of 2 kg to arrive at a total weight of 42 kg, dominated by the haptic feedback of the iron weights and barely noticeable electrical resistance. This fine-tuning to 42 kg would not be possible with a conventional strength machine, since iron blocks are typically in 5 kg or 10 lbs blocks. This fine tuning is especially important to break so-called plateaus, where users need a gradual, incremental increase in small weights between 1 kg and 2 kg to reach new performance levels.
The skilled person will recognize that the advantages, technical effects and preferred embodiments discussed in connection with the exercise machine apply analogously to the method for adjusting a force to be applied by a user to an exercise machine. Likewise, all the advantages, technical effects and preferred embodiments described in connection with the method are transferable to the exercise machine.
It should be understood that the description above is provided to introduce in simplified form a selection of concepts that are further described in the detailed description. It is not meant to identify key or essential features of the claimed subject matter, the scope of which is defined uniquely by the claims that follow the detailed description. Furthermore, the claimed subject matter is not limited to implementations that solve any disadvantages noted above or in any part of this disclosure.
Further examples of embodiments are explained in more detail below with reference to the accompanying drawings. The invention is not intended to be limited solely to these listed examples of embodiments. They merely serve to explain the invention in more detail. The present invention is intended to relate to all objects which the person skilled in the art would use now and, in the future, as obvious to realize the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a preferred embodiment of the exercise machine in a perspective view.

FIG. 2 shows a partial view of a preferred embodiment of the exercise machine, particularly the pulley system.

FIG. 3 shows another partial view of a preferred embodiment of the exercise machine, particularly the pulley system.

FIG. 4 shows a preferred embodiment of the exercise machine from a top view.

FIG. 5 shows a preferred embodiment of the electromechanical resistance module in three different views: frontal, side, and perspective.

FIG. 6 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side and perspective.

FIG. 7 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side, top and perspective.

FIG. 8 shows a further preferred embodiment of the electromechanical resistance module in three different views: frontal, side, top and perspective.

FIG. 9 shows a preferred embodiment of the user interface.

FIG. 10 shows a further preferred embodiment of the user interface.

FIG. 11 shows a further preferred embodiment of the user interface.

FIG. 12 shows a preferred embodiment of the sensor system.

FIG. 13 shows the preferred embodiment of the sensor system of FIG. 12 , without a housing from front view.

FIG. 14 shows the preferred embodiment of the sensor system of FIG. 12 , without a housing from back view.

FIG. 15 shows a schematic illustration of a preferred embodiment of the exercise machine connected to an external device.

FIG. 16 shows a further preferred embodiment of the exercise machine in a perspective view.

FIG. 17 shows a partial view of a further preferred embodiment of the exercise machine.

FIG. 18 shows a further preferred embodiment of the exercise machine in a perspective view.

FIG. 19 shows a partial view of a further preferred embodiment of the exercise machine.

FIG. 20 shows a further preferred embodiment of the exercise machine in a perspective view.

FIG. 21 shows a partial view of a further preferred embodiment of the exercise machine.

FIG. 22 shows a flowchart outlining a method for adjusting the force applied by a user to a preferred exercise machine.

FIG. 23 shows a flowchart outlining another method for adjusting the force applied by a user to a preferred exercise machine.

FIG. 24 shows a flowchart outlining another method for adjusting the force applied by a user to a preferred exercise machine.

DETAILED DESCRIPTION OF THE FIGURES

FIG. 1 shows a preferred embodiment of the exercise machine 1 in a perspective view. The exercise machine 1 is designed as a half power rack, having a body 3, which is formed in particular by frame elements. The exercise machine 1 comprises a first physical weight 5, a second physical weight 6, an electromechanical resistance module 7, a first pulley system 9 and a second pulley system 10 both attached to the body 3 and a user interface 11.
The first physical weight 5 provides a resistance source for a first cable 13. Simultaneously, the second physical weight 6 provides a resistance source for a third cable 15. The electromechanical resistance module 7 on the other hand provides a resistance source for a second cable 13 and a fourths cable 16.
The first and second physical weights 5, 6 each are iron weights formed as weight stacks divided into several weight increments. The user can adjust the weight resistance by moving a pin 18 up or down between different weight blocks.
In general, a weight stack is preferably a series of rectangular weight plates, usually made of metal, that are stacked and can be selected for use by inserting a pin 18 into the desired weight level. The user can adjust the resistance by moving the pin 18 to a different weight plate. The weight stack is guided up and down by a pair of vertical rods and a weight sword 43, which is connected to a cable 13, 15 and positioned between the vertical rods.
The first pulley system 9 guides the first cable 13 and second cable 14 to an adapter 17 to which the first cable 13 and the second cable 14 are attached. This configuration enables the two generated resistances from the first physical weight 5 and the electromechanical resonance module 7 to be combined into a single output resistance.
Similarly, the second pulley system 10 guides the third cable 15 and fourth cable 16 to an adapter 17, to which the third cable 15 and the fourth cable 16 are attached. This arrangement merges the resistances from the second physical weight 6 and the electromechanical resistance module 7 also into a single output resistance.
The user interface is connected to both adapters 17 and serves to apply a force against both single output resistances. In this regard, the user interface 11 is designed as a long bar handle, which has an attachment means 37 at each of its distal ends so that the user interface 11 can be attached to the respective adapters 17 at both ends.
The body 3 comprises four vertical posts 24 and horizontal bars 26 at the top and bottom. The electromechanical resistance module 7 comprises a housing which is preferably made from metal and can act as a structural element of the exercise machine. In this regard the electromechanical resistance module 7 can replace a traditional crossbar or horizontal bar 26 on the top of the body 3 which is designed as a power rack.
The electromechanical resistance module 7 remains continuously active while a user performs exercises on the exercise machine 1. Even when no electromechanical resistance is needed, the electromechanical resistance module 7 must be operational to retract the second and fourth cables 14, 16 when the user releases force during the exercise, allowing the physical weights 5, 6 to return to its original position. Therefore, the electromechanical resistance module 7 must be connected to a power source 28, for example, the power grid. The module 7 is equipped with a plug 30 for connection to the power source 28.
The electromechanical resistance module 7 can comprise multiple units, each generating an independent electromechanical resistance. The units are all housed within the same housing of the electromechanical resistance module 7 and can share a control unit. Each independent unit can be combined with a weight source to generate a single resistance output. Additionally, there can be units that operate without connection to a physical weight, producing resistance solely based on electromechanical resistance. In this regard the module 7 comprises an output cable 32 for this generated resistance.
The electromechanical resistance module 7 can comprises a control unit 34 (not shown in FIG. 1 ) with a data processing unit for controlling the electromechanical resistance sources and a communication unit for data communication. The control unit 34 is able to control each independent unit generating electromechanical resistance included in the electromechanical resistance module 7.
FIG. 2 shows a partial view of a preferred embodiment of the exercise machine 1, particularly the first pulley system 9. FIG. 2 corresponds to a detailed section of FIG. 1 . In this respect, reference is made to the descriptions of FIG. 1 .
The pulley system 9 comprises four pulleys 19, 20, 21, 22, wherein a first pulley 19 and a third pulley 21 guide the first cable 13 and a second pulley 20 and a fourth pulley 22 guide the second cable 14. In this regard, the first pulley 19 and the second pulley 20 are arranged on a first axis 23. The third pulley 21 and the fourth pulley 22 are arranged on a second axis 25, the first axis 23 and the second axis 25 being arranged parallel to each other.
The first axis 23 and the second axis 25 have different distances relative to an attachment surface 27 of the body 3, which is aligned parallel to both the first axis 23 and the second axis 25. The attachment surface 27 is formed by one side of a bracket mounted on a post 24 of the body 3. This bracket is height-adjustable and can be fixed at various positions along the post 24. To facilitate this, the post 24 features a series of holes into which a pin or bolt from the bracket can be inserted.
The pulley system 9 guides first cable 13 and the second cable 14 in such way that the first cable 13 and the second cable 14 are oriented parallel to each other. The first cable 13 and the second cable 14 are continuously attached to the adapter 17 via a double cable coupling. The cable coupling comprises two sleeves 29 which respectively receive the first cable 13 and second cables 14, wherein the first cable 13 and the second cable 14 have a maximum distance from one another which lies a range between 30 mm-80 mm. The sleeves 29 are provided with holes into which clamping screws can be screwed in order to fix the cables 13,14 in the sleeves 29.
The first cable 13 and the second cable 14 are attached to the adapter 17 in such way that the adapter 17 can pull the first cable 13 and the second cable 14 parallel to each other, when force is applied to the adapter 17. The adapter 17 comprises a force application point for applying a force against the single output resistance, wherein the force application point is located centrally between the parallel-aligned first and second cables 13, 14. The user interface 11 is connected to force application point via a carabiner hook.
The electromechanical resistance module 7 comprises an electric servo motor 31 with a winch 33 on which the second cable 14 can be wound and unwound. The electromechanical resistance module 7 comprises an electric servo motor 31 with a winch 33 on which the second cable 14 can be wound and unwound. Additionally, the electromechanical resistance module 7 includes other electric motors 31 with winches 33. One of these electric motors 31, in combination with a winch 33, is used to provide purely electromechanical resistance without the combination of a physical weight 5, 6. Another electric motor 31 operates a winch 33 that can wind and unwind the fourth cable 16 mentioned in FIG. 1 (not shown in FIG. 2 ). All motors 31 and winches 33 are housed within the housing of the electromechanical resistance module 7 (not illustrated in FIG. 2 ).
Moreover, the electromechanical resistance module 7 comprises a control unit 34 with a data processing unit for controlling the resistance source provided from the electric motor 31 and a communication unit for data communication. All provided electric motors 31 in the electromechanical resistance module 7 can be controlled by the control unit 34.
FIG. 3 shows another partial view of a preferred embodiment of the exercise machine 1, in particular the first pulley system 9. The embodiment shown in FIG. 3 corresponds to the embodiments shown in FIGS. 1-2 . In this respect, reference is made to the descriptions of these figures.
In FIG. 3 , it is particularly notable that the user interface 11, designed as a straight bar or long bar handle, includes a rotational adjustment ring 36. This rotational adjustment ring 36 allows input to be provided to the control unit 34 or the electromechanical resistance module7. Based on the user's input, the control unit 34 can adjust the motor-based resistance source.
FIG. 4 shows a preferred embodiment of the exercise machine from a top view. The embodiment shown in FIG. 4 corresponds largely to the embodiments shown in FIGS. 1-3 In this respect, reference is made to the descriptions of these figures.
The difference between the embodiment of FIG. 4 and the embodiment of FIGS. 1-3 lies in particular the design of the user interface 11. The embodiment in FIG. 4 comprises two user interfaces 11, 12 instead of one single user interface 11, in particular two independently movable handles instead of one straight bar.
The difference between the embodiment in FIG. 4 and the embodiments in FIGS. 1-3 lies particularly in the design of the user interface 11. The embodiment in FIG. 4 comprises two user interfaces 11, 12, instead of a single user interface 11. Specifically, it features two independently movable handles instead of one straight bar.
Each handle 11, 12 is connected to an adapter 17 which provides a single output resistance generated by a physical weight 5, 6 in combination with an electromechanical resistance module 7. In addition, it can be seen that the housing of the electromechanical resistance module 7 is mounted on a crossbar 26. The housing comprises a support surface which allows it to be fixed to the top of the crossbar 26.
FIG. 5 shows a preferred embodiment of the electromechanical resistance module 7 in three different views: frontal (a), side (b), and perspective (c). The electromechanical resistance module 7 features a cuboid-shaped housing. It has preferably a width of 86 mm, a height of 178 mm, and a length of 1080 mm. This design is particularly well-suited to replace a crossbar 26 in a power rack and to serve as a structural component of the power rack.
FIG. 6 shows another preferred embodiment of the electromechanical resistance module 7 in three different views: frontal (a), side (b), and perspective (c). Like the embodiment in FIG. 5 , the housing of the electromechanical resistance module 7 is also cuboid-shaped. It has preferably a width of 143 mm, a height of 400 mm, and a length of 1080 mm. This design is also well-suited to serve as a structural component for an exercise machine 1.
FIG. 7 shows another preferred embodiment of the electromechanical resistance module 7 in four different views: frontal a), side b), top c), and perspective d). The electromechanical resistance module 7 depicted in FIG. 7 partially corresponds to the embodiment from FIG. 5 , with the difference that an attachment ledge has been added to the cuboid-shaped body of the housing.
In the frontal view a), the electromechanical resistance module 7 forms a rectangle preferably with a length of 1090 mm and a height of 170 mm. The side view b) shows a rotated L-shape due to the attachment ledge, with one leg of the “L” serving as the attachment ledge. The attachment ledge has a height of 65 mm and a length of 724 mm. The attachment ledge is centrally placed on the cuboid body, creating a step on both sides of the electromechanical resistance module 7 when viewed from the top c).
The width of the electromechanical resistance module 7 where the ledge is present measures preferably 255 mm, and where the steps are formed, i.e., where there is no ledge, the module 7 has preferably a width of 104 mm.
FIG. 8 shows a further preferred embodiment of the electromechanical resistance module 7 in three different views: frontal a), side b), top c) and perspective d). The embodiment of the electromechanical resistance module 7 shown in FIG. 8 comprises a housing with a quadrangular shape with a laterally protruding bridge 47.
In the frontal view a), the electromechanical resistance module 7 has preferably a height of 170 mm, while the laterally protruding bridge 47 has preferably a height of 93 mm. In the side view b), the electromechanical resistance module 7 appears as a rectangle preferably with a length of 360 mm and a height of 170 mm.
In the top view c), the electromechanical resistance module 7 is depicted in an L-shape. The width of the vertical part of the “L” is preferably 160 mm, while the height of the horizontal part is preferably 93 mm. In the perspective view d), it can be seen that the electromechanical resistance module 7 has a cuboid main body with a laterally protruding bridge 47. This bridge 47 can accommodate a pulley, which can guide at least a cable of the electromechanical resistance module 7.
FIG. 9 shows a preferred embodiment of the user interface 11. The user interface 11 is in the form of a single handle. The single handle comprises an attachment part 37 and a grip 39. A rotational adjustment ring 36 and a button 38 are attached to the grip 39. The rotational adjustment ring 36 can be configured to make adjustments to the control unit 34 of the electromechanical resistance module 7, while the button 38 can stop the resistance applied by the electromechanical resistance module 7 by transmitting appropriate input signals to the control unit 34. The handle is preferably battery powered, and the battery can be charged using a USB-C cable by connecting it directly to the electromechanical resistance module 7. The signal from the handle can be transmitted wirelessly to the electromechanical resistance module 7. Accordingly, the user interface 11 can further comprise a communication unit and a data processing unit.
FIG. 10 shows another preferred embodiment of the user interface 11. The user interface 11 is a long bar handle. The long bar handle is equipped with a rotational adjustment ring 36 and a button 38, both positioned near where the user would grip the handle while performing exercises and applying force. On the sides of the long bar handle, attachment parts 37 are provided to connect the long bar handle to adapters 17. The long bar handle can be attached to two adapters.
By rotating the rotational adjustment ring 36, the user can adjust the electromechanical resistance up or down, and by pressing the button 38 inside the rotational adjustment ring 36, the user can start or stop the electromechanical resistance. The handle is preferably battery-powered, and the battery can be charged with a USB-C cable by plugging it directly into the electromechanical resistance module 7. The signal from the handle is preferably transferred wirelessly to the electromechanical resistance module 7. Additionally, the user interface 11 can include a communication unit and a data processing unit.
FIG. 11 shows another preferred embodiment of the user interface 11. The user interface 11 is designed as a lat-pulldown handle. It features two grips 39 connected by an attachment part 37. One of the grips 39 is equipped with a button 38 and a rotational adjustment ring 36.
By rotating the rotational adjustment ring 36, the user can adjust the electromechanical resistance up or down, and by pressing the button 38 inside the ring, the user can start or stop the electromechanical resistance. The handle is preferably battery-powered, and the battery can be charged with a USB-C cable by plugging it directly into the electromechanical resistance module 7. The signal from the handle is preferably transferred wirelessly, preferably via Bluetooth or Infrared, to the electromechanical resistance module 7. Further, the user interface 11 can comprise a communication unit and a data processing unit.
FIG. 12 shows a preferred embodiment of the sensor system 35. The sensor system 35 comprises a motion sense box 40, which houses a load cell 41, a three-axis accelerometer 42, and a rechargeable battery 44. The load cell 41 converts force into an electrical signal by measuring weight through the deformation or strain in a material when a load is applied. It is connected to the top of a weight sword 43. The three-axis accelerometer 42, attached to the back of the load cell 41, measures acceleration and the distance a weight is moved along three perpendicular axes (X, Y, and Z). Such three-axis accelerometer 42 are for example commonly used in smartphones to detect movement and direction. The rechargeable battery 44, located on the back of the load cell 41, powers the sensor system 35.
By combining the load cell 41 with the three-axis accelerometer 42, the sensor system 35 can for example detect weight measurement (how much physical weights the user has moved) and repetition counting (the number of repetitions the user has completed and the quality of each repetition, measured by the distance the physical weight has traveled).
The acquired data can be transferred to the electromechanical resistance module 7 and then passed to an external device 45 with a software application. The software application may use this data to display information to the user, analyze the weight moved and repetitions made, and to apply or adjust the training programs selected by the user.
FIG. 13 shows the preferred embodiment of the sensor system 35 from FIG. 12 , without a housing, viewed from the front. It can be seen that the load cell 41 is connected to the weight sword 43 and a first cable 13.
FIG. 14 shows the preferred embodiment of the sensor system 35 from FIG. 12 , without a housing, viewed from the back. It is apparent that the three-axis accelerometer 42 and the rechargeable battery of the motion sensing box 40 are all housed in a single housing.
FIG. 15 shows a schematic illustration of a preferred embodiment of the exercise machine 1 connected to an external device 45. In this configuration, the electromechanical resistance module 7 is in data communication with the user interface 11, the sensor system 35, and an external device 45, such as a smartphone, via Bluetooth. All components are equipped with the necessary communication means.
The user interface 11 can send input data to the control unit 34 of the electromechanical resistance module 7. The sensor system 35 is capable of transmitting acquired data to the electromechanical resistance module 7. The external device 45 is configured to send commands to the control unit 34 of the electromechanical resistance module 7. In addition, the electromechanical resistance module 7 is capable of providing the acquired data from the sensor system 35 to the external device 45 for reading and analysis.
The electromechanical resistance module 7 may collect multiple signal data points from the exercise machine 1. These data points can include the total weights moved from the sensor system 35 via Bluetooth Low Energy. It also may collect control signals from the user interface 11 via Bluetooth Low Energy, infrared, or 2.4 kHz standard. Additionally, it may measure Newton meters of resistance from the electric motors 31 via a physical connection with a controller. Finally, it may record the meters of cable moved per repetition from the electric motor 31 and winch 33 via a physical connection with a controller.
The external device 45 comprises preferably a software application. The software application may comprise predefined training programs that adjust the electromechanical resistance in the electromechanical resistance module 7. The user can select a starting weight on the physical weights 5, 6 (for example, 30 kg), and the dynamic program of the electromechanical resistance module 7, such as Pyramid training, which involves a gradual increase in resistance with each repetition followed by a gradual decrease. Additionally, the software application can be used for voice control of the electromechanical resistance module 7, including safety features. Safety features may comprise a Kill-Switch-Word to stop the electromechanical resistance module 7 by voice command or an automatic reduction in weights when sensors detect very slow and hesitant repetitions by the user, indicating user fatigue.
FIG. 16 shows another preferred embodiment of the exercise machine 1 in perspective view. This embodiment is based on the general principle of combining electromechanical resistance and physical weight resistance in a single output resistant described in the previous embodiments. In this regard, reference is made to the descriptions of the preceding figures.
The exercise machine 1 is designed as a modular attachment for power racks, such as rowing stations and lat-pulldowns. The electromechanical resistance module 7 is placed at the bottom of the exercise machine 1. The physical weights are plate-loaded from the side and are part of the lat-pulldown mechanism.
FIG. 17 shows a partial view of another preferred embodiment of the exercise machine 1. This figure corresponds to a detailed section of FIG. 16 ; hence, reference is made to the description of FIG. 16 . The reference numerals are consistent between the figures.
FIG. 18 shows a further preferred embodiment of the exercise machine 1 in a perspective view. The exercise machine 1 is designed as a stand-alone strength machine, such as a lat-pulldown tower. The electromechanical resistance module 7 is placed on top of the exercise machine 1. The physical weights 5 consist of a single selectorized weight stack block at the back of the tower. Since the basic structure corresponds to the previously described embodiments in FIGS. 1-17 , reference is made to the descriptions of these figures. The reference numerals are consistent throughout the figures.
FIG. 19 shows a partial view of a further preferred embodiment of the exercise machine 1. FIG. 19 corresponds to a detailed section of FIG. 18 ; therefore, reference is made to the description of FIG. 18 . The reference numerals are consistent with those in FIG. 18 .
FIG. 20 shows a further preferred embodiment of the exercise machine 1 in a perspective view. This figure also relies on the already described basic structure. Therefore, reference is made to all the aforementioned figures and their descriptions. The exercise machine 1 is designed as a squat rack with a single selectorized weight stack block at the back of the rack. The electromechanical resistance module 7 is placed on top of the squat rack and serves as a structural part instead of a crossbar.
FIG. 21 shows a partial view of a preferred embodiment of the exercise machine 1. FIG. 21 corresponds to a detailed section of FIG. 20 ; therefore, reference is made to the description of FIG. 20 . The reference numerals are consistent with those in FIG. 20 .
FIG. 22 is a flowchart illustrating a preferred method 1000 for adjusting the force to be applied by a user to an exercise machine 1. At 1002, method 1000 includes applying a force against the single output resistance by the user interface 11. At 1004, it involves acquiring the movement of the physical weight 5, in particular the speed and/or acceleration of the movement, by the sensor system 35. At 1006, the method includes providing the acquired data from the sensor system 35 to the control unit 34 of the electromechanical resistance module 7. At 1008, the control unit 34 detects a decrease in speed and/or acceleration in relation to previously acquired data from the sensor system 35. At 1010, the control unit 34 adjusts the second resistance source.
Handling a high number of physical weights 5 can be risky. By splitting between physical weights 5 and electromechanical resistance module 7, digital safety measures can be implemented to gradually reduce or completely turn off electromechanical resistance module 7 in case of danger.
When the exercise machine 1 detects that the user is getting tired, the sensor system 35 and/or the control unit 34 can notice the repetitions slowing down, by measuring slower three-axis accelerometer movements and longer fatigue breaks, and will decrease the electromechanical resistance.
For example, the user may select 40 kg of physical weights 5 and an electromechanical resistance equivalent to 20 kg. If the user feels fatigued during an exercise, the sensor system 35 and/or the control unit 34 will detect this by registering a slower push/pull of the physical weights 5, typically at the end of a set. The electromechanical resistance module 7 will then decrease the electromechanical resistance by 5 kg and subsequently by 1 kg with each subsequent repetition. This enables the user to continue the workout without having to stop due to high weights or fatigue, a feature not possible with conventional physical weights.
FIG. 23 shows a flowchart outlining a further preferred method 1000 for adjusting the force applied by a user to a preferred exercise machine 1. At 1002, the method 1000 includes applying a force against the single output resistance by the user interface 11. At 1003, it involves providing an input signal to the control unit 34 by the user interface 11. At 1010, the method 1000 includes adjusting the second resistance source by the control unit 34. This method 1000 allows the user to manually adjust and/or stop the resistance of the electromechanical resistance module 7 by the user interface 11. For this purpose, the user interface 11 includes input means such as a rotary adjustment ring 36 or a button 38.
FIG. 24 shows a flowchart outlining a further method 1000 for adjusting the force applied by a user to a preferred exercise machine 1. At 1001, an input signal is provided to the control unit 34 of the electromechanical resistance module 7, setting the control unit 34 in an automatic training mode. At 1002, the user applies a force against the single output resistance via the user interface 11, causing the physical weight 5 to be lifted. At 1005, the user reduces the force against the single output resistance, causing the physical weight 5 to be lowered. At 1010, the control unit 34 adjusts the second resistance source.
A comparison of the method 1000 described with conventional training can demonstrate the advantages of the preferred exercise machine 1.
For a lat-pulldown on a conventional power tower without the electromechanical resistance module 7, the user may start by selecting a warm-up weight, for example between 20 kg and 40 kg, depending on the user's strength and experience. After warming up, the user might perform three sets of the exercise using, for example, 60 kg of physical weight, with each set consisting of 12-15 repetitions.
During the workout, the user needs to stand up from the seated position every time they need to change the weight. This involves unhooking their thighs from under the thigh pads, stepping away from the bench, and adjusting the weights with the weight pin. The user then returns to the bench and secure their thighs under the pads again. In the final repetitions, as fatigue sets in, the user might struggle to complete the set. They could potentially perform 2-5 more repetitions and achieve maximum muscle tension if the weight could be reduced to 55 kg or 50 kg during the last few reps of the set. However, with a conventional weight system, this is not possible without interrupting the set for at least 10 seconds, including repositioning to manually change the weight.
As a result, the muscles do not perform optimally, and the time under tension is shorter than it could be if a gradual decrease in weights were possible. Additionally, constantly changing the weight every 2-3 repetitions becomes impractical and inefficient.
A preferred exercise machine 1, designed as a lat-pulldown with the electromechanical resistance module 7 on a power tower, may start similarly to traditional machines, with the user choosing a warm-up weight between 20 kg and 40 kg. The user might then select their desired training program on the electromechanical resistance module 7, in this case, drop sets, either via voice control or manually on a software application of an external device 45.
With the electromechanical resistance module 7, changing physical weights 5 during a set may become unnecessary. The electromechanical resistance module 7 can for example increase the electromechanical resistance equivalent to a total of 70 kg at the beginning of the exercise and gradually reduce the weight as fatigue is detected, decreasing the resistance in 1 kg increments to ensure maximum time under tension for the muscle. The user can remain seated and does not need to interrupt the set for weight changes.
Most importantly, these electromechanical resistance adjustments might be made every 2-3 repetitions while maintaining a 40 kg physical weight base, ensuring perfect visual, auditory, and inertia feedback from the physical weights 5. Additionally, the user can manually adjust the electromechanical resistance at any time by simply turning the rotation adjustment on the user interface 11 with one finger, if they prefer different weight settings than those automatically adjusted by the module.
Another example that falls under the described method 1000 is as follows: The user can set the physical weights to 40 kg for a lat-pulldown. Depending on the program (automatic training mode) they choose (for example “normal mode” or “drop set mode”), the electromechanical resistance module 7 will increase the resistance equivalent by 1 kg with every pull the user makes. This allows a gradual increase in resistance with every pull, for example, from 40 kg gradually by 1 kg up to 55 kg, without the need to switch physical weights 5.
The electromechanical resistance module 7 can operate like a pyramid, gradually increasing and decreasing the resistance within one set.
A Max-Tension Mode is designed to maximize muscle tension and engagement throughout a single set. The user selects an initial heavy physical weight 5, for example, 50 kg. The electromechanical resistance module 7 can initially be set to zero. As the user begins the set, the electromechanical resistance module 7 gradually adds resistance with each repetition (pyramid up) by an equivalent of 2 kg. This increase continues until the total weight reaches the user's one-rep max (one repetition maximum), which in this example is 90 kg. The electromechanical resistance module 7 can save the peak one-rep max amounts, so it remembers past peak one-rep max weights and builds up the pyramid until reaching a new max level.
At the peak weight (90 kg), the user experiences maximum resistance for a brief period, fully engaging the muscles. After reaching the peak, the electromechanical resistance module 7 starts decreasing the weight by 2 kg with each subsequent repetition. This reduction continues until the weight returns to zero electromechanical resistance, leaving only the physical weight 5 of 50 kg. The gradual increase and decrease in weight target different muscle fibers, enhancing overall muscle development.
Another example covered by method 1000 is as follows: in the Variable-Resistance Mode with an electromechanical resistance module 7, the resistance changes non-linearly within a single repetition. Unlike gradual or linear progression, where the resistance increases or decreases at a constant rate, this mode involves unpredictable and dynamic adjustments to the resistance at different points of the movement.
At the beginning of the repetition, the user sets the physical weights 5 at a comfortable level, for example, 50 kg. As the single movement/repetition progresses, the electromechanical resistance module 7 detects the muscle's engagement and adjusts the resistance accordingly. During the midpoint of the repetition, the resistance can increase or decrease sharply. These changes can be programmed to vary in intensity and duration, creating a challenging environment for the muscles. Towards the end of the repetition, the resistance can either taper off or spike based on the preset program. This unpredictability ensures that the muscles are constantly adapting to the changing resistance. The non-linear changes in resistance force the muscles to respond to varying loads, leading to greater muscle activation. The unpredictable nature of the resistance changes helps prevent plateaus in training. Muscles must constantly adapt to new challenges, promoting continuous improvement and growth. By varying the load throughout the repetition, the stress on joints and tendons can be minimized, reducing the risk of overuse injuries common with constant or linear resistance training.
Repetition refers to the number of times a user performs a specific exercise movement consecutively in a set, while a set refers to a specific number of repetitions of a particular exercise performed consecutively without rest.
The following claims particularly point out certain combinations and sub-combinations regarded as novel and non-obvious. These claims may refer to “an” element or “a first” element or the equivalent thereof. Such claims should be understood to include incorporation of one or more such elements, neither requiring nor excluding two or more such elements. Other combinations and sub-combinations of the disclosed features, functions, elements, and/or properties may be claimed through amendment of the present claims or through presentation of new claims in this or a related application. Such claims, whether broader, narrower, equal, or different in scope to the original claims, also are regarded as included within the subject matter of the present disclosure.

Claims

1. An exercise machine, comprising:

a. a body,

b. a physical weight providing a first resistance source for a first cable,

c. an electromechanical resistance module providing a second resistance source for a second cable,

d. a pulley system attached to the body configured to integrate the resistance from the first and second resistance sources into a single output resistance by guiding the first cable and second cable to an adapter to which the first cable and the second cable are attached,

e. a user interface connected to the adapter for applying a force against the single output resistance.

2. The exercise machine of claim 1,

wherein the pulley system comprises at least a first pulley and a second pulley,

wherein the first pulley guides the first cable and the second pulley guides the second cable in such way that the first cable and the second cable are oriented parallel to each other.

3. The exercise machine of claim 1,

wherein the first cable and the second cable are continuously attached to the adapter via a double cable coupling.

4. The exercise machine of claim 1,

wherein the first cable and the second cable are attached to the adapter in such way that the adapter can pull the first cable and the second cable parallel to each other, when force is applied to the adapter.

5. The exercise machine of claim 2,

wherein the adapter comprises a force application point for applying a force against the single output resistance, wherein the force application point is located centrally between the parallel-aligned first and second cables, and wherein the user interface is connected to force application point.

6. The exercise machine of claim 1,

wherein the adapter comprises two sleeves which respectively receive the first and second cables, wherein the first and second cables, which are guided in parallel, have a maximum distance from one another which lies in a range between 5 mm-200 mm.

7. The exercise machine of claim 1,

wherein the pulley system comprises four pulleys, wherein a first pulley and a third pulley guide the first cable and a second pulley and a fourth pulley guide the second cable,

wherein the first pulley and the second pulley are arranged on a first axis,

wherein the third pulley and the fourth pulley are arranged on a second axis, the first axis and the second axis being arranged parallel to each other.

8. The exercise machine of claim 7,

wherein the first axis and the second axis have a different distance in respect to an attachment surface of the body which is parallel aligned to the first axis and the second axis.

9. The exercise machine of claim 1,

wherein the electromechanical resistance module comprises an electric motor with a winch on which the second cable can be wound and unwound.

10. The exercise machine of claim 1,

wherein the electromechanical resistance module comprises a housing which serves as a structural component of the body.

11. The exercise machine of claim 1,

wherein the electromechanical resistance module comprises a control unit with a data processing unit for controlling the second resistance source and a communication unit for data communication.

12. The exercise machine of claim 11,

wherein the user interface comprises means for providing an input signal to the control unit.

13. The exercise machine of claim 11,

wherein the exercise machine further comprises a sensor system configured to acquire the resistance of the first resistance source or the second resistance source or the single output resistance or the movement of the physical weight or the force applied to the adapter or the movement of the first cable, the second cable or the adapter,

wherein the sensor system comprises means for providing acquired data to the control unit.

14. The exercise machine of claim 13,

wherein the electromechanical resistance module and the sensor system is in data communication with an external device having a data processing unit and a communication unit,

wherein the sensor system comprises means for providing acquired data to the external device,

wherein the user interface comprises means for providing an input signal to the external device,

wherein in external device is configured to process the provided data of the sensor system or the provided input data of the user interface or to transmit control commands to the electromechanical resistance module.

15. A Method for adjusting a force to be applied by a user to an exercise machine comprising:

a. a body,

b. a physical weight providing a first resistance source for a first cable,

c. an electromechanical resistance module providing a second resistance source for a second cable, wherein the electromechanical resistance module comprises a control unit with a data processing unit for controlling the second resistance source and a communication unit for data communication,

e. a user interface connected to the adapter for applying a force against the single output resistance, wherein the user interface comprises means for providing an input signal to the control unit,

f. a sensor system configured to acquire

a resistance of the first resistance source or the second resistance source or the single output resistance or a movement of the physical weight or a force applied to the adapter or a movement of the first cable, the second cable or the adapter,

wherein the sensor system comprises means for providing acquired data to the control unit,

the method comprising the following steps:

i. applying a force against the single output resistance by the user interface,

ii. acquiring the movement of the physical weight, in particular a speed or an acceleration of the movement, by the sensor system,

iii. providing the acquired data of the sensor system to the control unit of the electromechanical resistance module,

iv. detecting by the control unit of a decrease in the speed or acceleration in relation to previously acquired data by the sensor system,

v. adjusting the second resistance source by the control unit, or

i. applying a force against the single output resistance by the user interface,

ii. providing an input signal to the control unit by the user interface,

iii. adjusting the second resistance source by the control unit, or

i. providing an input signal to the control unit of the electromechanical resistance module which sets the control unit in an automatic training mode,

ii. applying a force against the single output resistance by the user interface, causing the physical weight to be lifted,

iii. reducing the force against the single output resistance causing the physical weight to be lowered,

iv. adjusting the second resistance source by the control unit.