CN103768762A - electric treadmill - Google Patents

Abstract

An electric treadmill, comprising: a base; a group of upright columns which are combined with the base and extend towards the top end; a running platform having a running belt rotating along a closed path; a lifting and folding device is composed of a linear brake on the running bench, a lifting frame pivoted to the running bench and with a pivot point projected out of the front of running bench, a fixed base linked to the lifting tube of linear brake for making the lifting frame move in inclined or elevation angle, two movable pivot parts at the free end of the tail of each first side frame of lifting frame, two linking plates linked to the first side frames of lifting frame at one end and near the movable pivot parts, two limiting parts between the inner side of base and lifting frame, two guide rods with one end fixed to one of the first side frames and the other end passing through the limiting part, and a lifting frame with a front end pivoted to the front end of lifting frame.

Description

electric treadmill

technical field

The invention relates to a treadmill, in particular to an electric treadmill with stable lifting of the treadmill and light folding force. the

Background technique

A common electric treadmill comprises a base, a treadmill, a power unit, a lifting unit, a stand and components such as an instrument panel arranged on the stand. When in use, the treadmill not only provides the user with stepping alternately, but also allows the user to control the dashboard according to the user's needs, so that the treadmill can be raised and adjusted for an appropriate slope (angle). Among them, the angle lifting and folding structure of the running platform is nothing more than connecting the running platform directly to the base. When the lifting frame is raised, the shock and vibration force generated by the user will be directly transmitted to the base, causing the instrument on the stand to The board vibrates, which is often criticized by users. the

On the other hand, in order to make the treadmill easy to store, common treadmills of commercially available treadmills have a foldable function. The typical previous plans are shown in Figure 1 and Figure 2, which is the folding structure of US Patent No. 5,674,453 Schematically, the treadmill 10 has a base 11 placed on a floor, two uprights 12 extending from the base 11 toward the top, and a running platform 14 pivoted inside the two uprights 12 through two pivots 13 . The treadmill 14 has a first section 14A and a second section 14B arranged in opposite directions. the

When the treadmill 14 is to be folded, the method is to apply an upward force to the second section 14B, so that the first section 14A of the treadmill 14 rotates with the two pivots 13 as the rotating shaft. The position is flipped up to a folded position. Though this treadmill 10 has the function that can fold this treadmill 14, still there is following shortcoming:

One, because the pivot joint position of this treadmill 14 must be close to this end face 14C, and there is not any linking element between this treadmill 14 and this base 11, therefore, when this treadmill 14 turns upwards, will An inertial force is generated on the column 12 and the base 11 , causing the base 11 to shake easily. the

2. When the user is running on the treadmill 14, the overall weight of the user and the treadmill 14 is fully borne by the two pivots 13, causing the two pivots 13 to be easily fatigued and deformed, which relatively affects the running The smoothness of rotation and folding of platform 14 for long-term use. the

Although Taiwan Patent No. I234471 has made a relatively improved design for the shortcomings of the above-mentioned cases, its folding structure has many components and complex assembly, so it will increase the manufacturing cost for production, which is not conducive to commercial competition. Improvements. the

Contents of the invention

The main purpose of the present invention is to provide an electric treadmill, which can make the treadmill have good stability and the folding mechanism of the treadmill is simple and practical. the

In order to achieve the above object, an electric treadmill according to the present invention comprises: a base having two side bars spaced apart from each other and each having a first end and a second end arranged in opposite directions; a set of uprights, Combined with the base and extending toward the top; a treadmill, including two side frames spaced apart from each other and each having a first section and a second section arranged in opposite directions, and fixed between the two side frames A frame composed of at least one fixed rod between them, a running belt with its front and rear ends placed in the frame and which can rotate along a closed path; a lifting and folding device, including a linear brake, located on the On the treadmill, there is a lifting tube that can be extended in length, and a lifting frame. and the second side frame and a fixing seat fixed between the second side frame, the fixing seat is connected with the lifting tube of the linear brake, so that the lifting frame is pulled by the lifting tube of the linear brake to make a slope For elevation angle movement, the two movable pivots are arranged at the free ends of the first side frames of the lifting frame, and the two connecting pieces are respectively connected with each first side frame at one end, and are arranged at a position close to the movable pivots. The other end of the moving plate is fixedly connected with the free end of the connecting rod. Two limiters are respectively arranged between the inner side of the base and the lifting frame. One end of each limiter is pivotally connected to the two side rods of the base through a pivot. The body of each spacer is provided with a long slot, and two guide rods are respectively fixedly combined with one end of each first side frame, and the other end is passed through the long slot of the spacer, and can be subjected to External traction is axial sliding relative to the long groove. the

Wherein the elongated slots of each position-limiting member have an upper starting point and a lower starting point, whereby each guide rod can be limited to move between the upper starting point and the lower starting point of the elongated slots. the

It also includes a connecting rod, the connecting rod is an elongated rod body, the top surface is provided with two pads, and the two sides of the connecting rod are respectively connected with the positioning pieces. the

Wherein each living hinge part is a wheel. the

Therefore, the electric treadmill of the present invention can make the treadmill have good stability and the folding mechanism of the treadmill is simple and practical. the

Description of drawings

In order to describe in detail the structure, features and effects of the present invention, the following descriptions are as follows in conjunction with the preferred embodiments and accompanying drawings, wherein:

Fig. 1 is a perspective view of the use state of the U.S. Patent No. 5,674,453;

Fig. 2 is a side view of the folded state of the U.S. Patent No. 5,674,453;

Fig. 3 is the three-dimensional schematic diagram of a preferred embodiment of electric treadmill of the present invention;

Fig. 4 is a schematic side view of a preferred embodiment of the electric treadmill of the present invention;

Figure 5 is a folded side view of a preferred embodiment of the electric treadmill of the present invention;

Fig. 6, Fig. 7 are the ascension schematic diagrams of a preferred embodiment of the electric treadmill of the present invention;

8 to 10 are folded schematic diagrams of a preferred embodiment of the electric treadmill of the present invention. the

Detailed ways

The aforementioned and other technical contents, features and functions of the electric treadmill of the present invention will be clearly understood in the following detailed description of a preferred embodiment with reference to the accompanying drawings. It should be noted that the relative position terms used throughout the specification, such as "top" and "bottom", are used in terms of the user's use orientation, and similar elements are described with the same reference numerals. the

First please refer to Fig. 3 to Fig. 5, a preferred embodiment of the electric treadmill 2 of the present invention includes a base 20 placed on a supporting surface (such as a floor), and a group is located at the front end of the base 20 and faces A column 30 extending from the top, the column 30 has a group of instrument units 32 located at the top; a running platform 40 is connected to a running board 50 and a lifting and folding device 60, and the lifting and folding device 60 is combined with the Between the base 20 and the running platform 40 . the

The base 20 includes two side rods 21 spaced apart from each other, two connecting rods 22 fixed between the two side rods 21 , and two positioning frames 23 respectively fixed on the front ends of the two side rods 21 and having a pivot hole 231 . In addition, the rear end of the base 20 is provided with known components (not shown) such as an air pressure rod and a telescopic rod group (not shown in the figure), and the base 20 forms an accommodating space. the

A connecting rod 28 is an elongated rod body with two pads 281 arranged on the top surface, and a positioning piece 29 is connected to both sides of the connecting rod 28 respectively. One end of each positioning piece 29 is fixedly connected with the free end of the connecting rod 28 , and the other end of each positioning piece 29 is pivotally connected with the pivot hole 231 of each positioning frame 23 . the

The running platform 40, the front section is deep in the accommodation space of the base 20 and is connected with a running board 50. The running platform 40 includes two side frames 41 arranged in parallel at a predetermined distance from each other, and fixed on the two side frames. A frame body formed by several fixed rods 42 between 41, a front and back end is placed in this frame body and can follow the running belt 44 that a closed path rotates. the

In practice, the electric treadmill of the present invention also includes an electric motor (not shown) installed at the front end of the treadmill 40 and capable of driving the running belt 44 to rotate. the

The lifting and folding device 60 includes a linear brake 61 (or lifting motor), which is located on the treadmill 40 and has a telescopic lifting tube 611, a lifting frame 63, the front end and the running The platform 40 is pivotally connected, and the pivot point P protrudes from the front of the running platform 40, and has a first side frame 631 and a second side frame spaced apart from each other and a fixing seat 633 fixed between the second side frames. The seat 633 is connected with the lifting tube 611 of the linear brake 61, so that the lifting frame 63 is pulled by the lifting tube 611 of the linear brake 61 to move at a slope (elevation angle). Each first side frame 631 end section free end of frame 63. One end of the two linkage pieces 67 is respectively connected to the middle section of each first side frame 631 , that is, it is arranged at a position close to the wheel 65 , and the other end of each linkage piece 67 is fixedly connected to the free end of the connecting rod 28 . Two stoppers 70 are arranged between the inner side of the base 20 and the lifting frame 63 respectively. Each stopper 70 is a strip body, one end of which is pivotally connected to the two side bars 21 of the base 20 through a pivot 71 , A long slot 72 is defined in the body of each limiting member 70 . Two guide rods 75 are respectively fixedly combined with one end of each first side frame 631, and the other end is passed through the elongated slot 72 of the stopper 70, and can be pulled by external force relative to the elongated slot 72 as an axis. to slip. the

6 to 7, when the running platform 40 or the running board 50 of the first embodiment is to perform an angle lifting movement, the pivot point p protruding from the front of the running platform 40 is used as the pivot point, and the linear The downward force applied by the brake 61 to the lifting frame 63 will be directly transmitted to the second wheel 65. Since the second wheel 65 directly abuts against the supporting surface, such as the floor, and is not linked to the base 20, the lifting frame 63 is at an angle (slope) The stability and safety during adjustment will be greatly improved. As shown in Figure 6, at this time, the thrust is applied by the linear brake 61, causing the lifting frame 63 to form an angle with the base 20 to form a slope change, wherein the two connecting pieces 67 and the two guide rods 75 will be individually controlled by the linear brake. The downward thrust relative to the connecting rod 28 and the elongated slot 72 of the stopper 70 is a push motion to make the connecting rod 28 slide forward a small amount, and the stopper 70 gradually rotates upwards. As shown in Fig. 7, it is to display the upper limit value of the slope of the lifting frame 63. the

Please continue to refer to FIG. 8 to FIG. 10 , when the running platform 40 or running board 50 of the first embodiment is to be folded, the pivot hole 231 of the positioning frame 23 of the base 20 is used as the turning point for folding. , during the folding process, the center of gravity of the linear brake will turn from the front of Figure 8 and Figure 9 to the rear of the pivot point, as shown in Figure 10. The design of the long slot 72 of the limiter 70 prevents the running platform 40 from impacting forward and upward due to excessive movement. In other words, the design of the long slot 72 of the limiting member 70 will make the treadmill 40 fold within a safe range. the

To sum up the above, the design of the electric treadmill of the present invention has good stability due to the design of the new lifting frame 63 of the lifting and folding device 60 with the two wheels 65, the connecting piece 67, the limiter 70 and the guide rod 75 And its folding mechanism is simple and practical. the

But the above are only two preferred embodiments of the present invention, and should not limit the scope of the present invention, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the description of the invention , all should still belong to the scope covered by the claims of the present invention. the

Claims (4)

1. An electric treadmill, comprising: a base having two side bars spaced apart from each other and each having a first end and a second end disposed in opposite directions; a set of uprights coupled to the base and extending towards the top; A treadmill, comprising two side frames spaced apart from each other and each having a first section and a second section arranged in opposite directions, and at least one fixing rod fixed between the two side frames A frame body, a running belt with its front and rear ends placed in the frame body and capable of rotating along a closed path; A lifting and folding device, including a linear brake, is located on the running platform, and has a lifting tube that can be used for length expansion and contraction; a lifting frame, the front end is pivotally connected with the running platform, and its pivot point protrudes from the In front of the treadmill, the lifting frame is composed of a first side frame and a second side frame spaced apart from each other and a fixing seat fixed between the second side frames, and the fixing seat is connected to the lifting tube of the linear brake. Linked so that the lifting frame is pulled by the lifting tube of the linear brake to move at a slope angle; the two movable pivots are arranged at the free ends of the first side frames of the lifting frame; The side frame is connected, and it is set near the movable pivot, and the other end of each link is fixedly connected with the free end of the connecting rod; two limiters are respectively set between the inner side of the base and the lifting frame, each limit One end of the piece is pivotally connected to the two side bars of the base through a pivot, and a long slot is provided on the body of each limiter; two guide bars are respectively fixedly combined with one end of each first side frame, and the other end is It is inserted into the long slot of the limiter, and can be pulled by external force to slide axially relative to the long slot. 2. The electric treadmill according to claim 1, wherein the long grooves of the position-limiting parts have an upper starting point and a lower starting point, whereby each guide rod can be positioned between the upper starting point and the lower starting point of the long grooves. Limited movement. 3. The electric treadmill according to claim 1, further comprising a connecting rod, the connecting rod is an elongated rod body, two pads are arranged on the top surface, and the positioning pieces are respectively connected to both sides of the connecting rod. 4. The electric treadmill according to claim 1, wherein each hinge member is a wheel.

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