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 hub shaft 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 located in front of the first central shaft, the shock absorber being fixedly connected to the front end of the vertical support.By means of a reasonable arrangement, the present utility model not only achieves a more compact structure of the entire elliptical apparatus, but also a large space between the various transmission structures, which facilitates the assembly and maintenance of the elliptical apparatus. Figure for abstract: Fig 2.

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 is also called space walker, as a cardiovascular training machine with good effects, it is loved by many users and professionals. In order to reduce the space requirement, the means often taken in the existing elliptical machine are simply to bring the transmission structure closer, rather than optimizing the arrangement of the various components of the elliptical machine, as a result, the assembly of the elliptical machine is more difficult, inefficient and not conducive to subsequent maintenance. UTILITY MODEL DISCLOSURE

[0003] In order to overcome the drawbacks of the prior art, the present utility model aims to provide an elliptical apparatus having an optimized structure.

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

[0005] The present utility model provides an elliptical apparatus comprising:

[0006] a fixed support, the fixed support being rotatably provided with a first shaft central and a second central shaft 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 transmissionably connected by means of the first transmission mechanism;

[0008] first cranks, the first cranks being two in number, respectively connected by a hub shaft to the two ends of the first central shaft and arranged at 180 degrees relative 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 by gravity downwards at the outer periphery of the two rollers;

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

[0011] 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.

[0012] Wherein, preferably, 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.

[0013] Wherein, 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 arranged in front of the vertical support.

[0014] Wherein, preferably, the second transmission mechanism comprises at least one speed increase transmission mechanism, the speed increase transmission mechanism is a belt or chain transmission mechanism.

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

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

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

[0018] Wherein, preferably, the co-operating assembly is disposed in front of the vertical support.

[0019] Wherein, preferably, 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.

[0020] Wherein, preferably, 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 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 of between 75 degrees and 90 degrees with the vertical support.

[0021] The beneficial effects of the present utility model are as follows: by means of a reasonable arrangement, the present utility model not only achieves a more compact structure of the entire elliptical apparatus, but also a large space between the various transmission structures, thereby facilitating the assembly and maintenance of the elliptical apparatus. DESCRIPTION OF FIGURES

[0022] [Fig.l] 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 PRESENTATION OF THE IMPLEMENTATION METHOD

[0027] To better illustrate the embodiments, the utility model is accompanied by drawings. These drawings are part of the disclosure of the utility model, are primarily used to illustrate the embodiments, and may be used in conjunction with the description to explain the operating principles of the embodiments. By referring thereto, a person skilled in the art should be able to understand other possible embodiments and 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 designate similar components.

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

[0029] Referring to [Fig.l] to 5, a preferred embodiment of the present utility model provides an elliptical apparatus 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 bearing 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.l] indicates a forward direction, direction X2 indicates a rearward direction, direction ZI 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 from each other, the second central shaft 7 being relatively located 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 transmission structure comprising two pulleys connected by hub shaft respectively to the first central shaft 6 and to the second central shaft 7 and belts arranged on the two pulleys.

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

[0031] The elliptical apparatus further comprises a support bar 3 and a pedal arm 4, the support bar 3 and the pedal arm 4 each 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 downward 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 shock absorber 14 is transmission-connected to the second central shaft 7 by means of a second transmission mechanism 13, the shock absorber 14 is intended to provide damping of the movement, and the shock absorber 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 trainer in the present embodiment, place two feet on the two pedals 5 respectively, hold the two support bars 3 in the hands, step on the pedal arm 4 so that the pedal arm 4 moves along an elliptical path, at the same time, the hands holding the bars 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 to achieve the elliptical trajectory of the pedal arm 4. Compared with a conventional structure according to the existing technical solution in which a connecting rod is provided, the pedal arm 4 is hinged on the connecting rod and the lower end of the connecting rod is connected to a sliding rail in a forward and backward sliding manner, due to the elimination of the sliding rail structure, the elliptical apparatus in the present embodiment occupies less space in the forward and backward direction, moreover, the roller 10 and the pedal arm 4 are simply crimped upward and downward, which allows relatively easy installation and the user to install the elliptical apparatus by himself.In order to improve stability, the roller 10 may be a grooved roller, and the pedal arm 4 is pressed downward into an annular groove of 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 upward into the housing.

[0035] In the present 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 the installation and maintenance of the shock absorber 14, in particular, most of the existing shock absorbers 14 have the adjustable damping function, and the front-mounted shock absorber 14 is conducive to damping adjustment. In addition, the second central shaft 7 is arranged 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 the present embodiment is: "the first central shaft 6 - the second central shaft 7 - the shock absorber 14", from the back to the front and then upward.The first central shaft 6, and the first crank 9 and the second central shaft 7 connected thereto, as well as the shock absorber 14, are scattered and have a large space interval therebetween, which is conducive to the installation and maintenance of these structures. In addition, the first central shaft 6, the second central shaft 7 and the shock absorber 14, although scattered, are closely connected to the fixed support 1. In particular, the shock absorber 14 and the second central shaft 7 are arranged one above the other at the front of the vertical support 12, thereby effectively utilizing the space on the front side of the vertical support 12, and avoiding occupying too much space by the elliptical apparatus. Referring 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 shaft 6 and a projection of the second central shaft 7 in their respective axial directions are taken as one. 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 arranged in a lower position and closer to the base support 11, thus ensuring a compact structure. In addition, preferably, the line M is perpendicular to the vertical support 12, or the line M forms an angle of 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, which promotes the structural stability of the elliptical apparatus and also allows the fixed support 1 to provide a greater number of mounting positions in different areas in order to achieve a compact arrangement of the elliptical apparatus. The direction of the vertical support 12 refers to the vertical linear extension direction.

[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 in front of the vertical support 12. Referring to [Fig.4], in the present embodiment, the second transmission mechanism 13 comprises a first stage belt transmission mechanism 131 and a second stage belt transmission mechanism 132, the first stage belt transmission mechanism 131 and the second stage belt transmission mechanism 132 realizing a two-stage transmission for speed increase, with a transmission path from bottom to top.

[0037] Referring to [Fig.5], the elliptical apparatus further comprises a co-operation assembly 156, the co-operation assembly comprising a rocker lever 15 and a connecting rod 16, the first end of the rocker lever 15 is pivotally connected to the vertical support 12, the second end of the rocker lever 15 is pivotally connected to the first end of the connecting rod 16, the second end of the connecting rod 16 is transmission connected to the second central shaft 7. The co-operation assembly 156 can realize the connection of another transmission path between the support bar 3 and the shock absorber 14. In addition, the additional arrangement of the co-operation assembly 156 can create additional stress bearing points, which can better distribute the stresses on the different bars of the elliptical apparatus.In the present embodiment, a second crank 17 are respectively connected by hub shaft to the two ends of the second central shaft 7, the two second cranks 17 are arranged at 180 degrees relative to each other; the co-operation assemblies. 156 are two in number and respectively arranged on both 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-operation assemblies 156 are also arranged at the front of the vertical support 12, which further improves the compact structure of the elliptical apparatus.

[0039] In the present embodiment, the first belt transmission mechanism 8 and the second belt transmission mechanism 13 are used, furthermore, 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 shown in combination with the preferred embodiment, for those skilled in the art, it is understood that, without departing from the spirit and scope of the utility model as defined in the appended claims, various modifications to the utility model in its form and details are included within the scope of protection of the utility model.

Claims

Claims

1. An 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 hub shaft 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 by gravity downwards to the outer periphery of the two rollers, 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, a shock absorber, the shock absorber being transmission-connected 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. An elliptical apparatus according to claim 1, characterized in that 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.

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 arranged at the front of the vertical support.

4. An 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 apparatus according to claim 3, characterized in that the transmission path of the second transmission mechanism is from bottom to top.

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

7. Elliptical apparatus according to claim 6, characterized in that, it further comprises second cranks, the second cranks are two in number, respectively connected by hub shaft to the two ends of the second central shaft and arranged at 180 degrees relative to each other; the co-operation assemblies are two in number and respectively arranged on both 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-operating assembly is arranged at the front of the vertical support.

9. An 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. An 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 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.

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