Improved elliptical machine

Abstract

The utility model provides an improved elliptical machine, including frame, crank leg group, swing rod, pedal group and connecting rod group, its characterized in be, swing rod upper part articulates in frame and its bottom end is pivoted with pedal group one end, the both ends of connecting rod group are respectively articulated in swing rod lower part one side and the wheel rim of crank leg group, swing rod's lateral is equipped with the sliding element of the extension direction sliding connection along connecting rod group, the utility model discloses a sliding element is set up in pedal group one side, utilizes the sliding fit relationship between sliding element and connecting rod group, and the sliding range of pedal group is limited in the inside of frame edge with crank leg group as the boundary, compared with the elliptical machine mechanism of current, the space demand of its placement and use is greatly reduced, is applicable to the scene of family, small -size fitness place etc.

Description

Technical Field

[0001] This utility model relates to the technical field of an improved elliptical machine. Background Technology

[0002] Elliptical trainers, also known as cross-training machines, are popular in the market and widely used in homes and gyms because they can simulate various forms of exercise such as climbing stairs, walking, and running.

[0003] like Figure 1 As shown, the structure of a typical elliptical trainer usually includes a frame (a), crank-leg assembly (b) (a wheel-shaped rotating mechanism), swing arms (c) (also known as swing arm rods), pedal assembly (d), connecting rods (e), and crank assembly (not shown in the diagram). The crank-leg assembly (b) is pivotally mounted on the frame (a); the two swing arms (c) are rotatably connected to the frame (a); the two pedal assemblies (d) are pivotally connected to the bottom ends of the two swing arms (c); the two connecting rods (e) are pivotally connected between the swing arms (c) and the crank-leg assembly (b); and the two crank assemblies are pivotally connected between the crank-leg assembly (b) and the pedal assembly (d). During exercise, when the user applies pedal force to the pedal assembly (d), the crank assembly drives the crank-leg assembly (b) to rotate, generating rotational damping, thereby achieving the exercise effect; simultaneously, the crank assembly drives the pedal assembly (d) to reciprocate, enabling the user to complete the pedaling motion.

[0004] Specifically, such as Figure 1 As shown, in the structural design of existing elliptical machines, a guide wheel f is pivotally connected to the free end of the crank assembly, and the pedal assembly d is placed in the annular groove (not shown in the figure) of the guide wheel f. This allows the pedal assembly d to slide back and forth under the guidance of the annular groove of the guide wheel f during the alternating pedaling process, thereby coordinating with the user's pedaling action and ensuring smooth exercise.

[0005] However, in actual use, the above structural design has certain shortcomings:

[0006] Because the guide wheel rotates circumferentially around the crank leg assembly during user movement, when the pedal assembly moves with the guide wheel to the rearmost side of the crank leg assembly, the end of the pedal assembly often extends beyond the frame edge, with the crank leg assembly as the final boundary (in conjunction with...). Figure 1 This phenomenon means that elliptical trainers with this structure require more space during placement and use, which to some extent limits their applicability.

[0007] In view of this, the inventors specifically designed an improved elliptical machine, which led to this invention. Utility Model Content

[0008] To solve the above problems, the technical solution of this utility model is as follows:

[0009] An improved elliptical machine includes a frame, a crank leg assembly, a swing arm, a pedal assembly, and a connecting rod assembly. The upper part of the swing arm is hinged to the frame, and its bottom end is pivotally connected to one end of the pedal assembly. The two ends of the connecting rod assembly are respectively hinged to one side of the lower part of the swing arm and the rim of the crank leg assembly. The swing arm is provided with a sliding member on its side that can be slidably connected along the extension direction of the connecting rod assembly.

[0010] Preferably, the linkage assembly is located on the side of the swing arm close to the frame, or on the side of the swing arm away from the frame.

[0011] Preferably, the connecting rod assembly has at least one linearly distributed sliding section on the side near the crank leg assembly, and the slider is slidably engaged with the sliding section.

[0012] Preferably, the linkage assembly includes the sliding section and a connecting section extending obliquely along the sliding section, the end of the connecting section away from the sliding section being hinged to the lower part of the swing rod.

[0013] Preferably, the sliding segment is provided with a guide rail for sliding engagement with the sliding member, and the guide rail is a sheet-like track covering the surface of the sliding segment.

[0014] Preferably, the sliding element is a guide wheel, which is pivotally connected to one side of the pedal assembly via a shaft.

[0015] Preferably, the sliding member is provided with an annular groove, which is adapted to the connecting rod assembly and forms a sliding fit.

[0016] Preferably, the pedal assembly includes a foot pedal tube and a foot pedal disposed on the upper side of the foot pedal tube, and the sliding member is disposed on the side of the foot pedal tube facing the linkage assembly.

[0017] Preferably, the connecting rod assembly includes a tubular structure with a circular, waist-shaped, or elliptical cross-section, and the sliding member slides in contact with the outer surface of the tubular structure.

[0018] Preferably, the swing arm, pedal assembly, connecting rod assembly, and sliding component are each provided in two sets, and are distributed on both sides of the frame and crank leg assembly.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention, by placing a sliding member on one side of the pedal assembly and utilizing the sliding engagement between the sliding member and the linkage assembly, restricts the sliding range of the pedal assembly to the inner edge of the frame bounded by the crank leg assembly. Compared to existing elliptical machine mechanisms, this significantly reduces the space requirements for placement and use, making it suitable for space-constrained scenarios such as homes and small fitness venues.

[0021] In addition, the sliding engagement between the slider and the linkage provides precise guidance for the pedal assembly, reducing jamming or deviation during movement.

[0022] In addition, the sliding component adopts a guide wheel structure with annular grooves, which can better adapt to the shape and structure of the linkage assembly, making the sliding process of the two smoother. Attached Figure Description

[0023] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0024] in:

[0025] Figure 1 This is a schematic diagram of the overall structure of an existing elliptical machine;

[0026] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0027] Figure 3 yes Figure 2 A magnified schematic diagram of a portion of region A in the middle;

[0028] Figure 4 This is a side view structural diagram of the present invention;

[0029] Figure 5 This is a partial structural diagram of the swing rod, connecting rod group and pedal group on one side of the frame in this utility model;

[0030] Figure 6 This is a partial exploded structural diagram highlighting the swing rod, connecting rod assembly, and pedal assembly in this utility model;

[0031] Figure 7 This is a side view of the swing rod, connecting rod assembly, and pedal assembly in this utility model.

[0032] Figure 8 This is a schematic diagram showing the maximum operating position of the pedal assembly in this utility model.

[0033] Label Explanation:

[0034] 100. Frame; 110. Base; 120. Foot support; 130. Vertical tube; 131. Handle connecting shaft; 200. Crank leg assembly; 210. Outer disc; 220. Foot pedal shaft; 300. Swing rod; 310. Handle shaft sleeve; 320. Connecting piece; 330. Connecting rod shaft; 400. Pedal assembly; 410. Foot pedal tube; 420. Foot pedal; 430. Rotating shaft; 500. Connecting rod assembly; 510. Sliding section; 520. Connecting section; 530. Connecting rod sleeve; 540. Roller shaft sleeve; 550. Guide rail; 600. Guide wheel; 610. Annular groove. Detailed Implementation

[0035] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0036] Please see Figures 2 to 8 This is an improved elliptical machine, which is the preferred embodiment of the present utility model. It includes a frame 100, a crank leg assembly 200, a swing rod 300, a pedal assembly 400, and a connecting rod assembly 500. The crank leg assembly 200 has a wheel-shaped structure. The upper part of the swing rod 300 is hinged to the frame 100 and its bottom end is pivotally connected to one end of the pedal assembly 400. The two ends of the connecting rod assembly 500 are respectively hinged to one side of the lower part of the swing rod 300 and the edge of the wheel-shaped structure of the crank leg assembly 200. The swing rod 300 is provided with a sliding member on its side that can be slidably connected along the extension direction of the connecting rod assembly 500.

[0037] In this embodiment, the sliding element is a guide wheel 600, which is pivotally connected to one side of the pedal assembly 400 via a shaft.

[0038] Specifically, in combination Figure 4 In this embodiment, the frame 100 includes a base 110, a foot support 120, and a vertical tube 130 erected on the top front side of the base 110. A handle connecting shaft core 131 is fixed on the upper part of the vertical tube 130. Two swing rods 300 are rotatably sleeved on both ends of the handle connecting shaft core 131 near the upper part through handle shaft sleeves 310, so that the swing rods 300 form two parts with their hinge positions as the boundary. The upper part is used for the user's hand to grip, and the lower part serves as the connection part with other components.

[0039] In this embodiment, the pedal assembly 400 includes a foot pedal tube 410 and a foot pedal 420 disposed on the upper side of the foot pedal tube 410. The bottom of the swing arm 300 is provided with a connecting piece 320, and the front end of the foot pedal tube 410 is rotatably connected to the bottom of the swing arm 300 through the connecting piece 320.

[0040] Furthermore, the linkage 500 includes a linearly distributed sliding section 510 and a connecting section 520 extending obliquely along the sliding section 510. The swing rod 300 is provided with a connecting rod core 330 near its lower end and on its inner side near the frame 100. The end of the connecting section 520 away from the sliding section 510 is provided with a connecting rod sleeve 530. The connecting rod sleeve 530 is rotatably connected to the connecting rod core 330 to realize the relative rotation of the linkage 500 with respect to the lower part of the swing rod 300.

[0041] In this embodiment, the included angle between the connecting segment 520 and the sliding segment 510 is an obtuse angle, specifically 132°, so that the sliding segment 510 and the connecting segment 520 can achieve stable guidance and connection respectively. Other angles can also be selected, and no restrictions are imposed here.

[0042] Based on this, in this embodiment, the crank leg assembly 200 includes two outer discs 210 rotatably disposed at the rear of the base 110. The outer discs 210 are connected to a resistance generating component (not shown in the figure, but may be an inertia wheel, etc.) inside the frame 100, thereby transmitting resistance. To achieve the connection between the sliding section 510 and the outer discs 210, a foot pedal axle 220 is first vertically disposed at the outer rim of the outer disc 210. A roller axle sleeve 540 that rotatably engages with the foot pedal axle 220 is disposed at the end of the sliding section 510 away from the connecting section 520, thereby enabling a rotatable connection between the end of the sliding section 510 and the crank leg assembly 200.

[0043] Furthermore, in order to guide the pedal assembly 400 and enable it to follow the user's pedaling to achieve stable alternating movements, a rotating shaft 430 is vertically installed on the side of the pedal tube 410 near the sliding section 510. The rotating shaft 430 extends horizontally along the pedal tube 410 to cover the sliding section 510. Then, a wheel-shaped guide wheel 600 is pivotally connected to the rotating shaft 430. The guide wheel 600 has an annular groove 610 around its periphery. Finally, the annular groove 610 of the guide wheel 600 is aligned with the upper side of the sliding section 510 and movably overlaps with the sliding section 510, so that the upper surface of the sliding section 510 is embedded in the annular groove 610, thereby realizing the sliding connection between the pedal tube 410 and the sliding section 510.

[0044] Therefore, when the user alternately steps on the foot pedal 420, the alternating swing of the swing arm 300 can drive the linkage 500 to move synchronously. The linkage 500, through its connection with the outer disc 210, drives the outer disc 210 to rotate. By utilizing the transmission connection between the outer disc 210 and the internal resistance generating components, motion resistance is transmitted, allowing the user to get a full workout. During this process, the end of the sliding section 510 follows the rotation of the outer disc 210, rotating around its circumference. The foot pedal tube 410, under the sliding cooperation between the guide wheel 600 and the sliding section 510, moves back and forth regularly along the sliding section 510, ultimately realizing the alternating stepping exercise process.

[0045] like Figure 8As shown, since the reference position of the back-and-forth swing of the foot pedal tube 410 is now restricted to the sliding section 510, and the sliding section 510 is located between the crank leg assembly 200 and the swing rod 300, its limit motion state is when the roller shaft sleeve 540 moves to the position where the outer disc 210 is far away from the swing rod 300. At this time, the sliding section 510 is still within the coverage area of ​​the frame 100, so the guide wheel 600 is also within this range.

[0046] Preferably, in this embodiment, the linkage 500 is located on the side of the swing arm 300 close to the frame 100, or it can be located on the side of the swing arm 300 away from the frame 100. Located on the side close to the frame 100, it saves more space and makes the overall appearance more aesthetically pleasing. This is a preferred implementation. However, the side away from the frame 100 can also be selected as the mounting position of the linkage 500, and the guide wheel 600 can be set to face outwards to cooperate with the sliding section 510 at the corresponding position. This can also achieve the above purpose. No limitation is made here.

[0047] Preferred, such as Figure 6 As shown, a guide rail 550 for sliding cooperation with the sliding component is detachably fixed on the sliding section 510. The guide rail 550 is a sheet-like track covering the surface of the sliding section 510. In this embodiment, the guide rail 550 is an aluminum rail, but other suitable materials such as other metal rails or plastic rails can also be used as the contact part with the guide wheel 600. By making it replaceable, the wear of the foot tube 410 is reduced and the service life of the elliptical machine is extended.

[0048] Preferably, the connecting rod assembly 500 includes a tubular structure with a circular, waist-shaped, or elliptical cross-section, and the sliding element slides in contact with the outer surface of the tubular structure.

[0049] In this embodiment, the connecting rod assembly 500 includes a tubular structure with a waist-shaped cross section. The annular groove 610 of the guide wheel 600 is adapted to the upper arc surface of the waist-shaped tubular structure, thereby making the sliding fit between the sliding section 510 and the annular groove 610 of the guide wheel 600 more stable.

[0050] Preferably, the swing arm 300, pedal assembly 400, connecting rod assembly 500 and sliding member are each provided in two sets, and are distributed on both sides of the frame 100 and crank leg assembly 200.

[0051] The beneficial effects of this utility model are as follows:

[0052] This invention, by setting a sliding member on one side of the pedal assembly 400 and utilizing the sliding engagement between the sliding member and the connecting rod assembly 500, restricts the sliding range of the pedal assembly 400 to within the edge of the frame 100 bounded by the crank leg assembly 200. Compared to existing elliptical machine mechanisms, this significantly reduces the space requirements for placement and use, making it suitable for space-constrained scenarios such as homes and small fitness venues.

[0053] In addition, the sliding engagement between the slider and the linkage 500 provides precise guidance for the pedal assembly 400, reducing jamming or deviation during movement.

[0054] In addition, the sliding component adopts a guide wheel 600 structure with annular groove 610, which can better adapt to the shape and structure of the connecting rod assembly 500, making the sliding process of the two smoother.

[0055] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An improved elliptical trainer, comprising a frame (100), a crank-leg assembly (200), a swing arm (300), a pedal assembly (400), and a connecting rod assembly (500), characterized in that, The upper part of the swing arm (300) is hinged to the frame (100) and its bottom end is pivotally connected to one end of the pedal assembly (400). The two ends of the connecting rod assembly (500) are respectively hinged to one side of the lower part of the swing arm (300) and the rim of the crank leg assembly (200). The swing arm (300) is provided with a sliding member on its side that can be slidably connected along the extension direction of the connecting rod assembly (500).

2. The improved elliptical machine according to claim 1, characterized in that, The linkage assembly (500) is located on the side of the swing arm (300) close to the frame (100), or on the side of the swing arm (300) away from the frame (100).

3. An improved elliptical machine according to claim 1, characterized in that, The connecting rod assembly (500) has at least one linearly distributed sliding section (510) on the side near the crank leg assembly (200), and the sliding member slides in conjunction with the sliding section (510).

4. An improved elliptical machine according to claim 3, characterized in that, The linkage assembly (500) includes the sliding section (510) and a connecting section (520) extending obliquely along the sliding section (510), the end of the connecting section (520) away from the sliding section (510) being hinged to the lower part of the swing rod (300).

5. An improved elliptical machine according to claim 3, characterized in that, The sliding section (510) is provided with a guide rail (550) for sliding cooperation with the sliding member. The guide rail (550) is a sheet-like track covering the surface of the sliding section (510).

6. An improved elliptical machine according to claim 1, characterized in that, The sliding component is a guide wheel (600), which is pivotally connected to one side of the pedal assembly (400) via a shaft.

7. An improved elliptical machine according to claim 1, characterized in that, The sliding member is provided with an annular groove (610), which is adapted to the connecting rod assembly (500) and forms a sliding fit.

8. An improved elliptical machine according to claim 1, characterized in that, The pedal assembly (400) includes a foot tube (410) and a foot pedal (420) disposed on the upper side of the foot tube (410), and the sliding member is disposed on the side of the foot tube (410) facing the linkage assembly (500).

9. An improved elliptical machine according to claim 1, characterized in that, The connecting rod assembly (500) includes a tubular structure with a circular, waist-shaped, or elliptical cross-section, and the sliding member slides in contact with the outer surface of the tubular structure.

10. An improved elliptical machine according to claim 1, characterized in that, The swing arm (300), pedal assembly (400), connecting rod assembly (500) and sliding component are each provided in two sets, and are distributed on both sides of the frame (100) and crank leg assembly (200).

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