Elliptical machine

Abstract

The utility model relates to an elliptical apparatus comprising a first central shaft and a second central shaft connected by transmission by means of a first transmission mechanism, two first cranks respectively connected by shaft-hub to the two ends of the first central shaft, each first crank having a roller connected to its free end, two pedal arms each crimped by gravity downwards to the outer periphery of the two rollers, a support bar whose lower end is pivotally connected to the pedal arm, the support bar being further pivotally connected to a vertical support, and a shock absorber connected by transmission to the second central shaft, the second central shaft being relatively situated in front of the first central shaft, the shock absorber being fixedly connected to the front end of the vertical support.Thanks to its sensible design, the present utility model not only allows for a more compact overall structure of the elliptical apparatus, but also provides ample space between the various transmission structures, thus facilitating assembly and maintenance. See Figure 2 for abbreviations.

Description

Title of the invention: Elliptical apparatus technical field

[0001] The utility model relates to the field of fitness equipment, and more particularly to an elliptical machine. TECHNICAL CONTEXT

[0002] The elliptical machine, also called a space walker, is a cardiovascular training device with beneficial effects and is appreciated by many users and professionals. To reduce its size, existing elliptical machines often simply move the transmission structure closer together, rather than optimizing the arrangement of the various components. As a result, the elliptical machine is more difficult to assemble, inefficient, and less conducive to future maintenance. UTILITY MODEL DISCLOSURE

[0003] In order to resolve the drawbacks of the prior art, the present utility model aims to propose an elliptical device having an optimized structure.

[0004] The present utility model provides the following technical solution.

[0005] The present utility model proposes an elliptical device comprising:

[0006] a fixed support, the fixed support being rotatably provided with a first shaft central and a second central tree having axes parallel to each other;

[0007] a first transmission mechanism, the first transmission mechanism being a belt or chain transmission mechanism, the first central shaft and the second central shaft being connected by transmission by means of the first transmission mechanism;

[0008] of the first cranks, the first cranks being two in number, respectively connected by shaft-hub to the two ends of the first central shaft and arranged at 180 degrees to each other, each first crank having a roller connected to its free end;

[0009] pedal arms, the pedal arms being two in number and respectively crimped downwards by gravity to the outer periphery of the two rollers;

[0010] support bars, the support bars being two in number, the lower end of the support bar being pivotally connected to the pedal arm, the fixed support comprising a vertical support, and the support bar being further pivotally connected to the vertical support;

[0011] a damper, the damper being connected by transmission to the second central shaft to provide damping of the movement, the second central shaft being relatively located at the front of the first central shaft, the shock absorber is fixedly connected to the front end of the vertical support.

[0012] In which, preferably, the second central shaft is arranged in front of the vertical support, and the shock absorber and the second central shaft are arranged one above the other.

[0013] In which, preferably, it further comprises a second transmission mechanism, the shock absorber and the second central shaft are connected by transmission by means of the second transmission mechanism, the second transmission mechanism is also disposed at the front of the vertical support.

[0014] In which, preferably, the second transmission mechanism comprises at least one transmission mechanism for increasing speed, the transmission mechanism for increasing speed is a belt or chain transmission mechanism.

[0015] In which, preferably, the transmission path of the second transmission mechanism is from bottom to top.

[0016] In which, preferably, it further comprises a co-functioning assembly, the co-functioning assembly comprising a toggle lever and a connecting rod, the first end of the toggle lever is pivotally connected to the vertical support, the second end of the toggle lever is pivotally connected to the first end of the connecting rod, the second end of the connecting rod is connected by transmission to the second central shaft.

[0017] In which, preferably, it further comprises second cranks, the second cranks are two in number, respectively connected by shaft-hub to the two ends of the second central shaft and arranged at 180 degrees to each other; the co-functioning assemblies are two in number and respectively arranged on the two sides of the vertical support, second ends of two connecting rods are respectively pivotally connected to the free ends of two second cranks.

[0018] In which, preferably, the co-functioning assembly is arranged at the front of the vertical support.

[0019] In which, preferably, a projection of the first central tree and a projection of the second central tree in their respective axial directions are a first projection and a second projection, the line joining the center of the first projection and the center of the second projection is parallel to the horizontal plane, or the line joining the center of the first projection and the center of the second projection forms an angle of less than 15 degrees with the horizontal plane.

[0020] In which, preferably, a projection of the first central tree and a projection of the second central tree in their respective axial directions are a first projection and a second projection, the line joining the center of the first projection and the center of the second projection are perpendicular to the vertical support, or the line joining the center of the first projection and the center of the second projection forms an angle between 75 degrees and 90 degrees with the vertical support.

[0021] The beneficial effects of the present utility model are as follows: thanks to a reasonable arrangement, the present utility model not only makes it possible to obtain a more compact structure of the whole elliptical device, but also a large space between the different transmission structures, which facilitates the assembly and maintenance of the elliptical device. DESCRIPTION OF THE FIGURES

[0022] Fig. 1 represents a three-dimensional diagram of the elliptical apparatus according to the embodiment (angle I);

[0023] Fig. 2 represents an exploded view of the partial structure of the elliptical apparatus according to the embodiment;

[0024] Fig. 3 represents a side view of the elliptical apparatus according to the embodiment;

[0025] Fig. 4 represents a three-dimensional diagram of the elliptical apparatus according to the embodiment (angle II);

[0026] Fig. 5 represents a three-dimensional diagram of the elliptical apparatus according to the embodiment (angle III); DETAILED DESCRIPTION OF THE PROCESS OF IMPLEMENTATION

[0027] To better illustrate the embodiments, the utility model is accompanied by drawings. These drawings form part of the disclosure of the utility model, are primarily used to illustrate the embodiments, and can be used in conjunction with the description to explain the operating principles of the embodiments. By referring to them, a person skilled in the art should be able to understand other possible embodiments and the advantages of the present utility model. The components shown in the drawings are not drawn to scale, and similar component symbols are commonly used to denote similar components.

[0028] The present utility model is described in more detail below in connection with the figures and specific embodiments.

[0029] With reference to [Fig. 1] to 5, a preferred embodiment of the present utility model proposes an elliptical device comprising a fixed support 1, the fixed support 1 further comprising a base support 11 and a vertical support 12, the base support 11 being in contact with the ground or another supporting plane, and the vertical support 12 being arranged vertically. In the present embodiment, the orientation of the elliptical apparatus in an installed and used state is used as the orientation described in the static state, namely: direction XI in [Fig. 1] indicates a forward direction, direction X2 indicates a backward direction, direction Z1 indicates an upward direction, and direction Z2 indicates a downward direction. The fixed support 1 is rotatably provided with a first central shaft 6 and a second central shaft 7 having axes parallel to each other, the first central shaft 6 and the second central shaft 7 being spaced apart, the second central shaft 7 being located relatively in front of the first central shaft 6, the first central shaft 6 and the second central shaft 7 being connected by transmission by means of a first transmission mechanism 8.In the present embodiment, the first transmission mechanism 8 is a belt drive structure comprising two pulleys connected by shaft-hub respectively to the first central shaft 6 and the second central shaft 7 and belts arranged on the two pulleys.

[0030] Two first cranks 9 are respectively connected by shaft-hub to the two ends of the first central shaft 6, the first two cranks 9 being arranged at 180 degrees to each other, each first crank 9 having a roller 10 connected to its free end, the roller 10 being able to be either rotationally connected to the first crank 9, or fixedly connected to the first crank 9.

[0031] The elliptical device further comprises a support bar 3 and a pedal arm 4, the support bar 3 and the pedal arm 4 being two in number, a support bar 3 and a pedal arm 4 constituting a force application assembly, and two force application assemblies being separately arranged on the sides of the vertical support 12. In a force application assembly, the pedal arm 4 is gravity-crimped downwards to the outer periphery of the roller 10 on the corresponding side, the lower end of the support bar 3 is pivotally connected to the pedal arm 4, and the support bar 3 is further pivotally connected to the vertical support 12.

[0032] A damper 14 is connected by transmission to the second central shaft 7 by means of a second transmission mechanism 13, the damper 14 is intended to provide damping of the movement, and the damper 14 is fixedly connected to the front end of the vertical support 12.

[0033] Pedals 5 are fixedly mounted on the pedal arm 4. When using the elliptical machine in this embodiment, place both feet on the two pedals 5 respectively, hold the two support bars 3 in your hands, and walk on the pedal arm 4 so that the pedal arm 4 moves along an elliptical path, while simultaneously holding the bars with your hands support 3 swings back and forth, allowing for a fitness exercise.

[0034] In the present embodiment, a structure composed of the first crank 9 and the roller 10 supports the pedal arm 4 in order to obtain the elliptical trajectory of the pedal arm 4. Compared to a conventional structure according to the existing technical solution in which a connecting rod is provided, the pedal arm 4 is articulated on the connecting rod and the lower end of the connecting rod is connected to a sliding rail in a sliding manner forward and backward. Due to the elimination of the sliding rail structure, the elliptical device in the present embodiment occupies less space in the forward and backward direction. Furthermore, the roller 10 and the pedal arm 4 are simply crimped upward and downward, which allows for relatively easy installation and enables the user to install the elliptical device by himself.To improve stability, the roller 10 may be a grooved roller, and the pedal arm 4 is pressed downwards into an annular groove in the grooved roller, or the lower end surface of the pedal arm 4 may be provided with a housing, and the roller 10 is pressed upwards into the housing.

[0035] In this embodiment, the shock absorber 14 is fixedly connected to the front end of the vertical support 12. The front mounting of the shock absorber 14 effectively saves space and facilitates its installation and maintenance. In particular, most existing shock absorbers 14 have adjustable damping, and the front-mounted shock absorber 14 is well-suited for damping adjustment. Furthermore, the second central shaft 7 is located at the front of the vertical support 12, and the shock absorber 14 and the second central shaft 7 are arranged one above the other, so that the transmission path in this embodiment is as follows: "first central shaft 6 - second central shaft 7 - shock absorber 14", from rear to front and then upwards.The first central shaft 6, the first crank 9, and the second central shaft 7 connected to it, as well as the damper 14, are widely spaced, which facilitates the installation and maintenance of these structures. Furthermore, the first central shaft 6, the second central shaft 7, and the damper 14, although widely spaced, are closely connected to the fixed support 1. In particular, the damper 14 and the second central shaft 7 are arranged one above the other at the front of the vertical support 12, which allows for efficient use of the space on the front side of the vertical support 12 and prevents the elliptical device from occupying too much space. With reference to [Fig.3], in the present embodiment, the space between the support bar 3 and the pedal arm 4 is substantially clear, which does not hinder the movement and use of the user.Preferably, a projection of the first central tree 6 and a projection of the second central tree 7 in their respective axial directions are taken for one. In the first projection 6A and a second projection 7A, a line M joining the center of the first projection 6A and the center of the second projection 7A is parallel to the horizontal plane, or the line M forms an angle of less than 15 degrees with the horizontal plane. In other words, the first central shaft 6 and the second central shaft 7 are essentially in the same horizontal plane, which allows the first central shaft 6 and the second central shaft 7 to be positioned lower and closer to the base support 11, thus ensuring a compact structure. Furthermore, preferably, the line M is perpendicular to the vertical support 12, or the line M forms an angle between 75 degrees and 90 degrees with the vertical support 12.In other words, the line M and the vertical support 12 are arranged in a cross shape, substantially perpendicular to each other. This promotes the structural stability of the elliptical apparatus and also allows the fixed support 1 to offer a greater number of mounting positions in different areas, thus achieving a compact arrangement of the elliptical apparatus. The direction of the vertical support 12 refers to the direction of vertical linear extension.

[0036] The shock absorber 14 and the second central shaft 7 are connected by transmission by means of the second transmission mechanism 13, the second transmission mechanism 13 is also arranged at the front of the vertical support 12. With reference to [Fig.4], in the present embodiment, the second transmission mechanism 13 comprises a first stage of belt transmission mechanism 131 and a second stage of belt transmission mechanism 132, the first stage of belt transmission mechanism 131 and the second stage of belt transmission mechanism 132 achieving a two-stage transmission for an increase in speed, with a transmission path from bottom to top.

[0037] With reference to [Fig. 5], the elliptical device further comprises a co-functioning assembly 156, the co-functioning assembly comprising a toggle lever 15 and a connecting rod 16, the first end of the toggle lever 15 being pivotally connected to the vertical support 12, the second end of the toggle lever 15 being pivotally connected to the first end of the connecting rod 16, the second end of the connecting rod 16 being connected by transmission to the second central shaft 7. The co-functioning assembly 156 can achieve the connection of another transmission path between the support bar 3 and the damper 14. In addition, the additional arrangement of the co-functioning assembly 156 can create additional stress support points, which allows for a better distribution of stresses on the different bars of the elliptical device.In the present embodiment, a second crank 17 is respectively connected by shaft-hub to the two ends of the second central shaft 7, the two second cranks 17 are arranged at 180 degrees to each other; the co-operating assemblies. 156 are two in number and respectively arranged on the two sides of the vertical support 12, second ends of two connecting rods 16 are respectively pivotally connected to the free ends of two second cranks 17.

[0038] In the present embodiment, the co-functioning assemblies 156 are also arranged at the front of the vertical support 12, which further improves the compact structure of the elliptical device.

[0039] In the present embodiment, the first belt transmission mechanism 8 and the second belt transmission mechanism 13 are used; moreover, they can also be replaced by other transmissions, such as a chain transmission mechanism or a gear transmission structure.

[0040] Although the utility model is specifically demonstrated and presented in combination with the preferred embodiment, for the person skilled in the art, it is understood that, without departing from the spirit and scope of the utility model as defined in the attached claims, various modifications to the utility model in its form and details are included in the scope of protection of the utility model.

Claims

Demands

1. Elliptical apparatus, characterized in that it comprises: a fixed support, the fixed support being rotatably provided with a first central shaft and a second central shaft having axes parallel to each other, a first transmission mechanism, the first transmission mechanism being a belt or chain transmission mechanism, the first central shaft and the second central shaft being connected by transmission by means of the first transmission mechanism, first cranks, the first cranks being two in number, respectively connected by shaft-hub to the two ends of the first central shaft and arranged at 180 degrees to each other, each first crank having a roller connected to its free end, pedal arms, the pedal arms being two in number and respectively crimped downwards by gravity to the outer periphery of the two rollers, support bars,the support bars being of two numbers, the lower end of the support bar being pivotally connected to the pedal arm, the fixed support comprising a vertical support, and the support bar being further pivotally connected to the vertical support, a shock absorber, the shock absorber being connected by transmission to the second central shaft to provide damping of the movement, the second central shaft being relatively located in front of the first central shaft, the shock absorber being fixedly connected to the front end of the vertical support.

2. Elliptical device according to claim 1, characterized in that the second central shaft is disposed in front of the vertical support, and the shock absorber and the second central shaft are disposed one above the other.

3. Elliptical apparatus according to claim 2, characterized in that it further comprises a second transmission mechanism, the shock absorber and the second central shaft are connected by transmission by means of the second transmission mechanism, the second transmission mechanism is also disposed at the front of the vertical support.

4. Elliptical apparatus according to claim 3, characterized in that, the second transmission mechanism comprises at least one transmission mechanism for increasing speed, the transmission mechanism for increasing speed is a belt or chain transmission mechanism.

5. Elliptical device according to claim 3, characterized in that the transmission path of the second transmission mechanism is from bottom to top.

6. Elliptical apparatus according to claim 1, characterized in that it further comprises a co-functioning assembly, the co-functioning assembly comprising a toggle lever and a connecting rod, the first end of the toggle lever is pivotally connected to the vertical support, the second end of the toggle lever is pivotally connected to the first end of the connecting rod, the second end of the connecting rod is connected by transmission to the second central shaft.

7. Elliptical apparatus according to claim 6, characterized in that, it further comprises second cranks, the second cranks being two in number, respectively connected by shaft-hub to the two ends of the second central shaft and arranged at 180 degrees to each other; the co-functioning assemblies are two in number and respectively arranged on the two sides of the vertical support, second ends of two connecting rods are respectively pivotally connected to the free ends of two second cranks.

8. Elliptical apparatus according to claim 6, characterized in that the co-functioning assembly is disposed at the front of the vertical support.

9. Elliptical apparatus according to claim 1, characterized in that, a projection of the first central shaft and a projection of the second central shaft in their respective axial directions are a first projection and a second projection, the line joining the center of the first projection and the center of the second projection is parallel to the horizontal plane, or the line joining the center of the first projection and the center of the second projection forms an angle of less than 15 degrees with the horizontal plane.

10. Elliptical apparatus according to claim 1, characterized in that, a projection of the first central shaft and a projection of the second central tree in their respective axial directions are a first projection and a second projection, the line joining the center of the first projection and the center of the second projection is perpendicular to the vertical support, or the line joining the center of the first projection and the center of the second projection forms an angle between 75 degrees and 90 degrees with the vertical support.

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