TWM504619U - Elliptical trainer providing adjustable path - Google Patents

Abstract

An elliptical trainer comprises a frame, two pedals, a resistance device, two cranks, and two adjusting mechanisms. The two cranks are respectively arranged at a side of the resistance device. Each pedal indirectly couples to an axis of the resistance device via one crank. The two cranks rotate about the axis to make the pedals moving along a closed path, respectively. The two adjusting mechanisms respectively couples with one crank, and comprises a block with a portion arranged within a recess of the crank. The position of the block within the recess can be adjusted, so as to change an effective length of the crank and thus vary the closed path of the pedals.

Description

Elliptical machine with adjustable stroke

This creation is about a sports device, especially an elliptical machine with adjustable stroke.

Ellipticals, also known as cross-trainers (X-trainers), are used to simulate climbing, walking, or running.

The elliptical machine combines the advantages of a treadmill and a pedal to perform a systemic exercise in a standing position. Since both feet are fixed on the elliptical machine at the same time, the left and right feet are forced to take half of the time, which can reduce the impact force of the knee joint and reduce the chance of injury.

Elliptical machines typically have pedals for the user to step on. The pedals of the traditional elliptical machine have a fixed trajectory, which makes the use of the elliptical machine less versatile.

Some patents, such as the Taiwan patent M403355 "lifting device for elliptical exercisers", disclose a lifting device for an elliptical exercise machine that can change the trajectory of the pedal. However, the span of the motion trajectory (stroke), that is, the distance between the feet of the user during exercise, is still fixed. Due to the difference in height, the fixed stroke span cannot be adapted to all users, resulting in a reduced training effect.

This creation is about an exercise device, especially an elliptical machine that can change the stroke span.

An embodiment of the present invention provides an elliptical machine comprising a skeleton, two pedals, two swing arms, two links, a resistance device, two cranks, and two adjustment mechanisms. The two pedals are used by the user to step on both feet. The two swing arms are respectively located on both sides of the skeleton. Each of the swing arms has a pivoting portion pivotally connected to the skeleton, and each of the swing arms has a grip at one end for the user to hold, and the other end of each of the swing arms is connected to one end of the pair of connecting rods, and The other end of the corresponding link is connected to a corresponding one of the pedals. The resistance device has an axis and provides an operational resistance. The two cranks are respectively located at two sides of the resistance device, and one end of each crank is connected to the shaft center, and the other end of each crank is connected with a support rod, and the support rod is connected with a corresponding pedal, and the support rod is further One end has a sliding portion for reciprocating motion on a track of the skeleton. The two adjusting mechanisms are respectively connected to the two cranks, each of the adjusting mechanisms comprises a motor, a screw, and a driving block, the motor can drive the screw to rotate, the driving block has an internal thread engaged with the screw, the driving block A portion of the crank is disposed on a recess of the crank, the portion pivotally coupled to one end of the support rod, and the motor drives the drive block to move within the recess.

Another embodiment of the present invention provides an elliptical machine comprising a skeleton, two pedals, two swing arms, two links, a resistance device, two cranks, and two adjustment mechanisms. The two pedals are used by the user to step on both feet. The two swing arms are respectively located on both sides of the skeleton. Each of the swing arms has a pivoting portion pivotally connected to the skeleton, and each of the swing arms has a grip at one end for the user to hold, and the other end of each of the swing arms is connected to one end of the pair of connecting rods, and The other end of the corresponding link is connected to a corresponding one of the pedals. The resistance device has an axis and provides an operational resistance. The two cranks are respectively located at two sides of the resistance device, and one end of each crank is connected to the shaft center, and the other end of each crank is connected with a support rod, and the support rod is connected with a corresponding pedal, and the support rod is further One end has a sliding portion for reciprocating motion on a track of the skeleton. The two adjusting mechanisms are respectively connected to the two cranks, each of the cranks includes a groove, and the adjusting device comprises a driving block, a part of the driving block is located in the groove, the portion is pivotally connected to one end of the supporting rod and Moving within the groove to change the effective length of the crank.

The embodiments of the present invention will be described in detail below with reference to the drawings. In some embodiments, the examples shown in the figures may be to scale, but in other embodiments, not necessarily to scale. In some embodiments, the same or similar element symbols may represent the same, similar, or analogous elements and/or elements, but in some embodiments, different elements may also be represented. In some embodiments, nouns describing directions, such as up, down, left, right, up, down, over, above, below, behind, front, etc., may be interpreted literally, but in other embodiments, Can not be explained in terms of literal meaning. In addition, some of the elements may be omitted from the illustration in order to clearly illustrate certain elements of the present invention. In the description of the specification, a number of specific details are provided for the reader to have a more complete understanding of the present invention; however, the present invention may be implemented without omitting some or all of these specific details.

1 shows an elliptical machine 1 of the preferred embodiment of the present invention, the main components of which include a skeleton 10, two swing arms 11, two links 12, a resistance device 13, two cranks 14, two support rods 15, and two pedals 16.

Referring to FIG. 1 , in the embodiment, the skeleton 10 can include, but is not limited to, a base 101 , a main frame 102 , and a riser 103 . The base 101 is located on a support surface or ground, the main frame 102 is located above the base 101, and the riser 103 is located above the main frame. By way of illustration and not limitation, one end of riser 103 is coupled to main frame 102 and the other end has an operational interface (not shown) for user operation.

Referring to FIG. 1, the two swing arms 11 and the two links 12 are respectively located on both sides of the skeleton 10, for example, on both sides of the main frame 102. Each of the swing arms 11 has a pivoting portion 110 pivotally connected to the skeleton 10, for example, pivotally connected to the main frame 102 of the skeleton, so that the swing arm 11 can swing back and forth around the pivoting portion 110. In addition, one end of each swing arm 11 has a grip 112 for the user to hold, the other end is connected to one end of a corresponding link 12, and the other end of the corresponding link 12 is connected to a corresponding pedal 16.

Referring to Figure 2, the resistance device 13 can be mounted to the main frame 102 and provide an operational resistance. The two cranks 14 are respectively located on both sides of the resistance device 13. The resistance device has a shaft center 130. One end of each crank 14 is connected to the shaft center, and the other end is connected to the front end of the support rod 15. The rear end of the support rod 15 has a sliding portion 152, such as a roller 152, abutting against the base 101. On track 1012. In addition, each support rod 15 has a support portion 154 connected to a pedal 16, and the support portion 154 can be pivotally connected to a portion of the link 12. With the above structure, when the crank 14 is rotated about the axis 130, the traveling path P of the pedal 16 is an elliptical or approximately elliptical trajectory, and the sliding portion 152 of the support lever 15 reciprocates in the rail 1012.

As will be explained below, according to the present embodiment, each of the cranks 14 has an adjustment mechanism for adjusting the length of the crank 14 to change the movement trajectory P of the pedal 16.

2 to 4 are partial enlarged views of the elliptical machine 1 of Fig. 1, showing the adjustment mechanism 17 of the elliptical machine of the preferred embodiment of the present invention. As shown in FIGS. 2 to 4, the adjustment mechanism 17 includes a motor 170, a screw 172, and a drive block 174. The motor 170 can drive the screw 172 to rotate, and the drive block 174 has internal threads (not shown) that mesh with the screw 172; thereby, when the motor 170 drives the screw 172 to rotate, the drive block 174 can be moved along the screw 172 toward or away from the motor. The direction of 170 moves.

As shown in FIGS. 2 through 4, in addition, each of the cranks 14 can have a recess 140, and a portion of the drive block 174 extends into the recess 140, and the front end 150 of the support rod 15 and the drive block 174 extend to the recess 140. The inner portion is pivotally connected to a shaft 1740.

As shown in FIG. 3, when the motor 170 drives the screw 172 to rotate, the driving block 174 is moved away from the motor 170, which is equivalent to increasing the length of the crank 14, causing the elliptical moving track P of the pedal 16 to become larger, that is, The major axis (the distance between a and a) and the minor axis (the distance between b and b) of the elliptical trajectory P become long.

As shown in FIG. 4, when the motor 170 drives the screw 172 to rotate, the driving block 174 is moved toward the direction close to the motor 170, which is equivalent to reducing the length of the crank 14, causing the elliptical motion path P of the pedal 16 to become smaller, that is, causing The major axis and the minor axis of the elliptical trajectory P become shorter.

Not seen in the prior art, the present embodiment mounts a motor 170 on each of the cranks 14 to adjust the effective length of the crank 14. However, the power supply of the motor 170 is a problem to be overcome. Since the crank 14 rotates about the axis 130, conventional power wiring is not feasible.

As shown in FIG. 3 to FIG. 4, the elliptical machine of the preferred embodiment may further include two conductive rings 18 respectively located on both sides of the resistance device 13 or on the same side of the resistance device 13 (in this embodiment) And coaxially connected to the axis 130 of the resistance device 13, so that the conductive ring 18 can rotate with the axis 130. The conductive ring 18 has a first polarity ring 180 and a second polarity ring 182, such as a positive ring 180 and a negative ring 182, which are made of metal or conductive material, and are electrically connected to the power supply of the elliptical machine 1.

5 and 6 are partial enlarged views showing the electrical connection of the conductive ring 18 to the motor 170. As shown in FIG. 5 and FIG. 6, the motor 170 can be electrically connected to the first polarity ring 180 and the second polarity ring 182 of the conductive ring 18 through the two conductive members 186 on the connecting member 184, and the two conductive members 186 It is electrically connected to the motor 170. Through the above structure, the problem of electrical connection of the motor 170 can be overcome.

In summary, the present invention provides an elliptical machine that can change the motion trajectory. By setting an adjustment mechanism for each crank, the effective length of the crank is adjusted so that the trajectory of the pedal changes.

Each and every embodiment disclosed in the specification can be modified, changed, combined, exchanged, omitted, substituted, and changed equally according to the person skilled in the art, as long as it is not mutually exclusive, belongs to the concept of the present creation. , belongs to the scope of this creation. Any application, waiver, or approved application that may or may not be associated with the features of the embodiments described herein, and/or the creator or assignee, is incorporated herein by reference in its entirety. The incorporated components, including some or all of their corresponding, related, and modified, (1) operative and/or constructible (2) are operative and/or constructible according to those skilled in the art. (3) Implementing/manufacturing/using or combining the present specification, the related application of the present application, and any part based on common knowledge and judgment of those skilled in the art.

Unless otherwise stated, some conditional sentences or auxiliary words, such as "can", "could", "may", or "may", are usually intended to express the embodiment of the case, but It can also be interpreted as a feature, element, or step that may not be required. In other embodiments, these features, elements, or steps may not be required.

The foregoing documents, the contents of which are incorporated herein by reference, are hereby incorporated by reference. The examples provided by the present application are for illustrative purposes only and are not intended to limit the scope of the present invention. The features or other features mentioned in this creation include method steps and techniques, and may be combined or altered, in part or in whole, with the features or structures described in the related application, which may be regarded as different, separate, An irreplaceable embodiment. The features and methods disclosed in the present application are corresponding to or related to those of the present invention, and those skilled in the art, and some or all of them may be (1) operable and/or Or configurable (2) modified according to the knowledge of those skilled in the art to be operable and/or constructible (3) implemented/manufactured/used or combined with any part of the present specification, including (I) the present creation or related Any one or more portions of the structures and methods, and/or (II) any alterations and/or combinations of the content of any one or more of the inventive concepts and portions thereof, including any one or more of Or any change and/or combination of the contents of the embodiments.

1‧‧‧Elliptical machine
10‧‧‧ skeleton
11‧‧‧ swing arm
12‧‧‧ Connecting rod
13‧‧‧resistance device
14‧‧‧ crank
15‧‧‧Support rod
16‧‧‧ pedal
17‧‧‧Adjustment agency
18‧‧‧ Conductive ring
101‧‧‧Base
102‧‧‧Main frame
103‧‧‧Riser
110‧‧‧ pivoting department
112‧‧‧ grip
130‧‧‧Axis
140‧‧‧ Groove
150‧‧‧ front end
152‧‧‧Sliding section
154‧‧‧Support
170‧‧‧Motor
172‧‧‧ screw
174‧‧‧ drive block
180‧‧‧First Polar Ring
182‧‧‧second-level ring
184‧‧‧Connecting parts
186‧‧‧Electrical parts
1012‧‧‧ Track
1740‧‧‧Axis
P‧‧‧ trajectory

1 is a perspective view showing an elliptical machine in accordance with a preferred embodiment of the present invention. 2 to 4 are partial enlarged views showing an adjustment mechanism of the elliptical machine according to the preferred embodiment of the present invention. 5 to 6 are partial enlarged views showing the conductive ring of the elliptical machine according to the preferred embodiment of the present invention.

1‧‧‧Elliptical machine

10‧‧‧ skeleton

11‧‧‧ swing arm

12‧‧‧ Connecting rod

13‧‧‧resistance device

14‧‧‧ crank

15‧‧‧Support rod

16‧‧‧ pedal

17‧‧‧Adjustment agency

101‧‧‧Base

102‧‧‧Main frame

103‧‧‧Riser

110‧‧‧ pivoting department

112‧‧‧ grip

130‧‧‧Axis

150‧‧‧ front end

152‧‧‧Sliding section

154‧‧‧Support

1012‧‧‧ Track

Claims (8)

An elliptical machine comprising: a skeleton; two pedals for the user to step on the feet; two swing arms respectively located on both sides of the skeleton; and two links, each of the swing arms having a pivoting portion pivotally connected to the skeleton One end of each of the swing arms has a grip for the user to hold, and the other end of each of the swing arms is connected to one end of the pair of connecting rods, and the other end of the corresponding connecting rod is connected with a corresponding one of the pedals; a resistance device having an axial center to provide an operational resistance; two cranks respectively located at two sides of the resistance device, one end of each crank is connected to the shaft center, and the other end of each crank is connected with a support rod, the support The lever is connected to a corresponding one of the pedals, the other end of the support rod has a sliding portion reciprocating on a track of the skeleton; and two adjusting mechanisms respectively connected to the two cranks, each of the adjusting mechanisms including a motor, a screw, and a driving block, the motor can drive the screw to rotate, the driving block has an internal thread engaged with the screw, and a part of the driving block is disposed on a groove of the crank, the part pivot One end of the support bar, the motor drives the drive block moves within the recess. The elliptical machine of claim 1, further comprising: two conductive rings respectively located on two sides of the resistance device or on the same side of the resistance device and coaxially connected to the axis of the resistance device, the two conductive The rings are electrically connected to the motor respectively. An elliptical machine according to claim 2, wherein each of the conductive rings comprises a first polarity ring and a second polarity ring. The elliptical machine of claim 1, wherein the skeleton comprises a base, a main frame, and a riser, the base is located on a support surface or a ground, the main frame is located above the base, and the riser is located Above the main frame. An elliptical machine comprising: a skeleton; two pedals for the user to step on the feet; two swing arms respectively located on both sides of the skeleton; and two links, each of the swing arms having a pivoting portion pivotally connected to the skeleton One end of each of the swing arms has a grip for the user to hold, and the other end of each of the swing arms is connected to one end of the pair of connecting rods, and the other end of the corresponding connecting rod is connected with a corresponding one of the pedals; a resistance device having an axial center to provide an operational resistance; two cranks respectively located at two sides of the resistance device, one end of each crank is connected to the shaft center, and the other end of each crank is connected with a support rod, the support The rod is connected to a corresponding one of the pedals, the other end of the support rod has a sliding portion reciprocating on a track of the skeleton; and two adjusting mechanisms respectively connected to the two cranks, each of the cranks including a groove Each of the adjusting devices includes a driving block, a portion of the driving block is located in the groove, and the portion is pivotally connected to one end of the supporting rod and movable in the groove to change the effective length of the crank. An elliptical machine according to claim 5, further comprising: two conductive rings respectively located on two sides of the resistance device or on the same side of the resistance device and coaxially connected to the axis of the resistance device, the two conductive The rings are electrically connected to the adjusting mechanism respectively. An elliptical machine according to claim 6, wherein each of the conductive rings comprises a first polarity ring and a second polarity ring. The elliptical machine of claim 5, wherein the skeleton comprises a base, a main frame, and a riser, the base is located on a support surface or a ground, the main frame is located above the base, and the riser is located Above the main frame.