Resistance walker

By incorporating resistance components and a folding mechanism into the walker, moderate resistance and speed control are provided, solving the problem of excessive speed in traditional walkers and improving the safety and stability of babies learning to walk.

CN224251068UActive Publication Date: 2026-05-19GUANGDONG HUILE TOY IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HUILE TOY IND CO LTD
Filing Date
2025-04-15
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional walkers slide too fast, which is not good for a baby's bone development and poses an accident risk. There is a need for a walker with reduced resistance to slow down the speed.

Method used

Design a resistance-assisted walking vehicle that includes a resistance element, a locking pin, and a folding mechanism. The vehicle provides moderate resistance through the cooperation of a wave-shaped groove and a locking pin, and the folding mechanism ensures controllable speed and prevents tipping over.

Benefits of technology

Effective control of walker speed helps babies learn to walk and balance better, improves safety, and avoids accident risks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224251068U_ABST
    Figure CN224251068U_ABST
Patent Text Reader

Abstract

The utility model provides a resistance walker which comprises a frame, a rear axle, a rear wheel resistance mechanism and a folding mechanism, and the frame is provided with a front end and a rear end which are oppositely arranged; the rear axle is mounted at the bottom of the rear end; the rear wheel resistance mechanism is installed on the rear axle and comprises a resistance part, a clamping pin and an assembly part. The resistance piece is provided with a mounting hole, the resistance piece is fixed on the rear wheel shaft, and a wave-shaped groove is formed in the outer side of the resistance piece; the bayonet lock is provided with a first end part and a second end part which correspond to each other, and the first end part is embedded into the wave-shaped groove; the assembly part penetrates through the rear wheel shaft and is fixed on the outer side of the resistance part, the assembly part is provided with a storage groove, and the second end part is embedded into the storage groove and can move along the storage groove; the folding mechanism is installed at the tail end of the frame and close to the rear axle, and the folding mechanism can be folded in the direction close to the frame. According to the resistance walker, the speed can be reduced, and higher safety is provided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of toy technology, and in particular to a resistance walking aid. Background Technology

[0002] The toddler stage is a crucial developmental period in a child's growth. Walkers, as tools to assist children in learning to walk, are in high demand in the market. Toy-made resistance walkers, as innovative derivatives of traditional walkers, are gradually emerging and attracting the attention of parents and children.

[0003] Traditional walkers have been around for a long time, providing many conveniences for babies learning to walk. They help babies overcome their fear and, to some extent, free up parents, allowing children to try walking independently in a relatively safe environment. However, as research into child development deepens, the drawbacks of traditional walkers have gradually become apparent. For example, excessively fast walking speeds are not conducive to the normal development of a baby's bones and may even increase the risk of accidents due to uncontrollable speed.

[0004] Therefore, providing a walking aid with reduced speed and resistance has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This application provides a resistance-assisted walking vehicle.

[0006] This application provides a resistance-assisted walking vehicle, including a frame, a rear wheel axle, a rear wheel resistance mechanism, and a folding mechanism. The frame has a front end and a rear end that are arranged opposite to each other. The rear wheel axle is installed at the bottom of the rear end. The rear wheel resistance mechanism is installed on the rear wheel axle and includes a resistance element, a locking pin, and an assembly. The resistance element has a mounting hole and is fixed on the rear wheel axle. A wavy groove is provided on the outer side of the resistance element. The locking pin has a corresponding first end and a second end. The first end is embedded in the wavy groove. The assembly passes through the rear wheel axle and is fixed on the outer side of the resistance element. The assembly has a storage groove, and the second end is embedded in the storage groove and can move along the storage groove. The folding mechanism is installed at the rear end of the frame and close to the rear wheel axle. The folding mechanism can be folded towards the frame.

[0007] In some embodiments, the outer surface of the resistance element is provided with a locking groove, and the folding mechanism has a pin that can be inserted into or withdrawn from the locking groove.

[0008] In some embodiments, the folding mechanism further includes a folding member, a linkage member, a fixing plate, a connecting frame, and a pin. The folding member is rotatably connected to the linkage member, the linkage member is fixed to the fixing plate, the connecting frame is slidably connected to the fixing plate, and the connecting frame abuts against the pin.

[0009] In some embodiments, the connecting frame has a limiting groove, and the fixing plate is provided with a limiting rod, which rubs into the limiting groove and slides along the limiting groove.

[0010] In some embodiments, the device further includes a vehicle body, which is fixed to a rear axle, and the pin is disposed in a fixing groove of the vehicle body, with an abutment spring provided between the pin and the limiting groove.

[0011] In some embodiments, a telescopic rod is also included, which is disposed on the vehicle body and is telescopic along the vehicle body.

[0012] In some embodiments, the bottom surface of the folding member is an inclined surface.

[0013] In some embodiments, a front wheel axle is further provided between the vehicle body and the frame, and a steering mechanism is provided on the vehicle body, the steering mechanism being connected to the front wheel axle.

[0014] In some embodiments, the rear wheel resistance mechanism further includes a stop spring, which is sleeved on the second end and abuts against the bottom of the receiving groove.

[0015] In some embodiments, the rear wheel resistance mechanism further includes an auxiliary locking member that passes through the rear wheel axle and is fixed to the resistance member on the side away from the assembly.

[0016] This application provides a resistance-assisted walking vehicle, including a frame, a rear axle, a rear wheel resistance mechanism, and a folding mechanism. The frame has a front end and a rear end that are oppositely arranged. The rear axle is installed at the bottom of the rear end. The rear wheel resistance mechanism is installed on the rear axle and includes a resistance element, a locking pin, and an assembly. The resistance element has a mounting hole and is fixed to the rear axle. A wave-shaped groove is provided on the outer side of the resistance element. The locking pin has corresponding first and second ends. The first end is embedded in the wave-shaped groove. The assembly passes through the rear axle and is fixed to the outer side of the resistance element. The assembly has a storage groove, and the second end is embedded in the storage groove and can move along the storage groove. The folding mechanism is installed at the rear end of the frame and close to the rear axle. The folding mechanism can fold towards the frame. By cooperating with the wave-shaped groove on the outer side of the resistance element and the first end of the locking pin, and with the second end of the locking pin and the storage groove of the assembly, effective control of the toy vehicle's speed is achieved, providing moderate resistance to reduce the speed of the toy vehicle and helping the baby learn to walk and balance better. Additionally, this application features a folding mechanism that allows the walker to be folded or extended closer to the frame. When the folding mechanism is close to the frame, it provides protection, preventing the walker from tipping over and ensuring that its speed remains controllable during gliding. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0019] Figure 2 This is another structural schematic diagram of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0020] Figure 3 This is a schematic diagram of the rear wheel resistance mechanism of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0021] Figure 4 Another schematic diagram of the rear wheel resistance mechanism of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0022] Figure 5 This is another structural schematic diagram of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0023] Figure 6This is another structural schematic diagram of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0024] Figure 7 This is another structural schematic diagram of the resistance-assisted walking vehicle provided in the embodiments of this application.

[0025] Figure 8 This is another structural schematic diagram of the resistance-assisted walking vehicle provided in the embodiments of this application. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0029] This application provides a resistance-assisted walking vehicle.

[0030] Please see Figures 1 to 8 This application provides a resistance-assisted walking vehicle 100, including a frame 10, a rear wheel axle 20, a rear wheel resistance mechanism 30, and a folding mechanism 40. The frame 10 has a front end 11 and a rear end 12 arranged opposite to each other; the rear wheel axle 20 is installed at the bottom of the rear end 12; the rear wheel resistance mechanism 30 is installed on the rear wheel axle 20, and the rear wheel resistance mechanism 30 includes a resistance member 31, a locking pin 32, and an assembly 33; the resistance member 31 has a mounting hole 311, the resistance member 31 is fixed on the rear wheel axle 20, and a wave-shaped groove 312 is provided on the outer side of the resistance member 31; the locking pin 32 has a corresponding first end 321 and a second end 322, the first end 321 is embedded in the wave-shaped groove 312; the assembly 33 passes through the rear wheel axle 20 and is fixed on the outer side of the resistance member 31, the assembly 33 has a storage groove 331, the second end 322 is embedded in the storage groove 331 and can move along the storage groove 331; the folding mechanism 40 is installed at the rear end of the frame 10 and close to the rear wheel axle 20, and the folding mechanism 40 can be folded in a direction close to the frame 10.

[0031] In this application, the engagement of the wave-shaped groove 312 on the outer side of the resistance member 31 with the first end 321 of the locking pin 32, and the engagement of the second end 322 of the locking pin 32 with the storage groove 331 of the assembly 33, effectively controls the speed of the toy car, providing moderate resistance to reduce the speed of the toy car and help the baby learn to walk and balance better. Additionally, this application allows the toy car to be folded or extended closer to the frame 10 via the folding mechanism 40. When the folding mechanism 40 is close to the frame 10, it provides protection, preventing the resistance walker 100 from tipping over, thus ensuring that the speed of the walker is controllable during sliding.

[0032] Furthermore, this application also proposes that the outer surface of the resistance member 31 is provided with a locking groove 313, and the folding mechanism 40 has a pin 41, which can be inserted into or removed from the locking groove 313.

[0033] Specifically, the locking groove 313 is provided on the outer surface of the resistance member 31 and is used to cooperate with the pin 41 of the folding mechanism 40.

[0034] When the folding mechanism 40 extends away from the frame 10, the pin 41 is inserted into the locking groove 313 and the pin 41 also passes through a certain resistance; when folding towards the frame 10, the pin 41 can be pulled out from the locking groove 313, reducing the resistance of the walker and making it easier to move the walker.

[0035] In a preferred embodiment, the locking groove 313 can be rectangular, circular, or other suitable shapes to ensure that the pin 41 can be securely inserted and remain locked. The pin 41 can be made of high-strength metal or plastic to ensure its durability and reliability.

[0036] Furthermore, this application also proposes that the folding mechanism further includes a folding component 42, a linkage component 43, a fixing plate 44, a connecting frame 45, and a pin 41. The folding component 42 is rotatably connected to the linkage component 43, the linkage component 43 is fixed on the fixing plate 44, the connecting frame 45 is slidably connected to the fixing plate 44, and the connecting frame 45 abuts against the pin 41.

[0037] Specifically, the folding component 42 and the linkage component 43 are rotatably connected to achieve the folding function. The linkage component 43 is fixed on the fixed plate 44 to ensure stability during the folding process. The connecting frame 45 is slidably connected to the fixed plate 44, allowing the connecting frame 45 to slide along the fixed plate 44, thereby realizing the unfolding and folding of the folding mechanism 40. The connecting frame 45 abuts against the pin 41, and the pin 41 can be inserted into or removed from the locking groove 313 under the push of the connecting frame 45.

[0038] In a preferred embodiment, the rotatable connection between the folding component 42 and the linkage component 43 can be achieved through a hinge. The installation position and angle of the hinge can be adjusted according to actual needs to ensure smooth folding. The linkage component 43 is fixed to the fixed plate 44, which can be connected to the frame 10 by bolts or welding to ensure the stability of the overall structure. The sliding connection between the connecting frame 45 and the fixed plate 44 can be achieved through a slide rail and a slider. The slide rail is fixed to the fixed plate 44, and the slider is fixed to the connecting frame 45, allowing the connecting frame 45 to slide along the slide rail. The abutment between the pin 41 and the connecting frame 45 can be achieved through a spring. One end of the spring is fixed to the connecting frame 45, and the other end is connected to the pin 41, allowing the pin 41 to automatically insert into or withdraw from the locking groove 313 under the push of the connecting frame 45.

[0039] Therefore, the technical solution of this application, through the cooperation of the folding part 42, the linkage part 43, the fixing plate 44, the connecting frame 45 and the pin 41, realizes the function of linkage resistance increase and unlocking resistance enhancement of the folding mechanism 40 and the rear wheel resistance mechanism 30.

[0040] Furthermore, this application also proposes that the connecting frame 45 has a limiting groove 451, and the fixing plate 44 is provided with a limiting rod 441, which is inserted into the limiting groove 451 and slides along the limiting groove 451.

[0041] Specifically, the design of the limiting groove 451 and the limiting rod 441 makes the relative movement between the connecting frame 45 and the fixed plate 44 more stable and controllable. The limiting groove 451 can be straight, curved, or other suitable shapes, and the limiting rod 441 is designed accordingly to match the shape of the limiting groove 451. For example, the limiting groove 451 can be a straight groove, and the limiting rod 441 can be a cylindrical rod that slides in the straight groove, thereby realizing linear movement between the connecting frame 45 and the fixed plate 44. As a preferred embodiment, limiting blocks can be provided at both ends of the limiting groove 451 to prevent the limiting rod 441 from sliding out of the limiting groove 451 and ensure the stability of the movement.

[0042] Therefore, this application solves the technical problem of unstable relative movement between the connecting frame 45 and the fixed plate 44 through the design of the limiting groove 451 and the limiting rod 441. The cooperation of the limiting groove 451 and the limiting rod 441 ensures that the connecting frame 45 will not shift or wobble during sliding, thereby improving the overall stability and reliability of the folding mechanism 40. Compared with the prior art, this technical solution achieves more precise and stable motion control through a simple structural design, avoiding the problem of failure or damage to the folding mechanism 40 due to unstable motion.

[0043] Furthermore, this application also proposes a resistance-assisted walking vehicle 100 including a body 50, the body 50 being fixed on a rear wheel axle 20, a pin 41 being disposed in a fixing groove 5151 of the body 50, and an abutment spring 46 being disposed between the pin 41 and the limiting groove 451.

[0044] Specifically, the vehicle body 50 is fixed to the rear axle 20, making the connection between the vehicle body 50 and the rear axle 20 more stable, thereby improving the overall stability of the walker. A pin 41 is set in the fixing groove 5151 of the vehicle body 50. Guided by the limiting groove 451, the pin 41 can slide within the limiting groove 451. A retaining spring 46 is set between the pin 41 and the limiting groove 451. Through the elastic force of the spring, the continuous extension and retraction of the pin 41 within the limiting groove 451 is ensured. In other words, the pin 41 and the locking groove 313 can act as a resistance point, coordinating with the rear wheel resistance mechanism 30 to provide assistance to the walker. This further reduces the speed of the walker and improves its safety.

[0045] Furthermore, this application proposes that the telescopic rod 60 is mounted on the vehicle body 50 and located at the rear end 12, and the telescopic rod 60 can extend and retract along the vehicle body 50. The telescopic rod 60 allows the vehicle body 50 to be adjusted in length according to usage needs, thereby adapting to the needs of different heights or usage scenarios. Specifically, the telescopic rod 60 can achieve its telescopic function through threaded connection, snap-fit ​​connection, or sliding connection. For example, the telescopic rod 60 can be designed as a multi-section sleeve structure, achieving extension and retraction through rotation or pressing; or it can adopt a sliding rail structure, adjusting the length of the rod by sliding. As a preferred embodiment, the telescopic rod 60 can be equipped with a locking mechanism to ensure that it can be fixed in position after being adjusted to a suitable length, preventing accidental slippage during use.

[0046] This technical solution, through the design of the telescopic rod 60, solves the problem of traditional walkers' inability to flexibly adjust their length according to children's height or usage environment. The adjustability of the telescopic rod 60 allows the walker to better adapt to the needs of children at different stages, while improving the product's versatility and practicality. Compared with existing technologies, this solution not only simplifies the structural design of the walker but also enhances its adaptability and user experience.

[0047] Furthermore, this application proposes that the bottom surface of the folding component 42 is an inclined surface. This design allows the folding component 42 to cooperate more smoothly with the linkage component 43 and the fixing plate 44 during folding, reducing frictional resistance and thus improving the ease of operation and stability of the folding mechanism 40. Specifically, the inclined surface design reduces the contact area between the bottom surface of the folding component 42 and the linkage component 43 during folding, thereby reducing friction and making the folding action easier. In addition, the inclined surface can also act as a guide during folding, ensuring that the folding component 42 moves along a predetermined path and avoiding structural instability caused by deviation.

[0048] Furthermore, this application also proposes that a front wheel axle 70 is provided between the vehicle body 50 and the frame 10, and a steering mechanism 80 is provided on the vehicle body 50, with the steering mechanism 80 connected to the front wheel axle 70.

[0049] Specifically, the front axle 70 connects the vehicle body 50 to the frame 10, enabling the vehicle body 50 to steer relative to the frame 10. The steering mechanism 80 typically includes a steering rod and a steering connector, which are hinged together. The steering connector is fixedly connected to the front axle 70. When the steering rod is actuated, the steering connector rotates the front axle 70, thereby steering the vehicle body 50. In a preferred embodiment, the steering mechanism 80 may also include a steering assist device, such as a spring or hydraulic system, to reduce the effort required to operate the steering rod.

[0050] Therefore, the technical solution of this application, by setting a steering mechanism 80 on the front wheel axle 70, enables the vehicle body 50 to steer flexibly, solving the problem of inconvenient operation when steering in traditional walkers. Compared with the prior art, this technical solution not only improves the maneuverability of the walker but also enhances safety during use, and is especially suitable for children's need for flexible maneuverability of walkers during the learning-to-walk stage.

[0051] Furthermore, this application also proposes that the rear wheel resistance mechanism 30 further includes a stop spring 35, which is sleeved on the second end 322 and abuts against the bottom of the receiving groove 331. The function of the stop spring 35 is to hold the second end 322 within the receiving groove 331 through elastic force, thereby ensuring the stable movement of the locking pin 32 within the wave-shaped groove 312. Specifically, the design of the stop spring 35 allows the second end 322 to move along the groove within the receiving groove 331, while preventing the locking pin 32 from disengaging or loosening due to external forces. As a preferred embodiment, the material of the stop spring 35 can be selected as spring steel with good elasticity and fatigue resistance to ensure its reliability during long-term use.

[0052] In addition, the rear wheel drag mechanism 30 also includes an auxiliary locking member 34, which passes through the rear wheel axle 20 and is fixed to the drag member 31 on the side away from the assembly 33. The function of the auxiliary locking member 34 is to further enhance the connection stability between the drag member 31 and the rear wheel axle 20, preventing the drag member 31 from loosening or falling off due to external forces. Specifically, the auxiliary locking member 34 can be fixed to the drag member 31 by means of a threaded connection or a snap-fit ​​connection, thereby providing additional locking force.

[0053] Through the above technical solution, the rear wheel resistance mechanism 30 of this application can effectively solve the safety hazards that may arise when traditional walkers slide at excessive speeds. The design of the abutment spring 35 makes the movement of the locking pin 32 within the wave-shaped groove 312 more stable, avoiding the problem of uncontrolled sliding speed caused by the locking pin 32 loosening or disengaging. At the same time, the introduction of the auxiliary locking member 34 further enhances the connection stability between the resistance member 31 and the rear wheel axle 20, ensuring the safety and reliability of the walker during use. Compared with the prior art, the technical solution of this application is simpler in structure, easier to manufacture and maintain, and can effectively reduce the sliding speed of the walker, providing a safer walking environment for children.

[0054] The foregoing has provided a detailed description of the resistance-assisted walking vehicle provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there may be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A resistance-assisted walking vehicle, characterized in that, include: The frame has a front and rear end that are positioned opposite each other; The rear axle is mounted at the bottom of the rear end; A rear wheel resistance mechanism is mounted on the rear wheel axle. The mechanism includes a resistance element, a locking pin, and an assembly. The resistance element has a mounting hole and is fixed to the rear wheel axle. A wavy groove is provided on the outer side of the resistance element. The locking pin has corresponding first and second ends, with the first end embedded in the wavy groove. The assembly passes through the rear wheel axle and is fixed to the outer side of the resistance element. The assembly has a receiving groove, with the second end embedded in the receiving groove and movable along the groove. A folding mechanism is installed at the rear end of the frame and near the rear wheel axle, and the folding mechanism can be folded in the direction close to the frame.

2. The resistance-assisted walking vehicle according to claim 1, characterized in that, The outer surface of the resistance element is provided with a locking groove, and the folding mechanism has a pin that can be inserted into or removed from the locking groove.

3. The resistance-assisted walking vehicle according to claim 2, characterized in that, The folding mechanism further includes a folding component, a linkage component, a fixing plate, and a connecting frame. The folding component is rotatably connected to the linkage component, the linkage component is fixed to the fixing plate, the connecting frame is slidably connected to the fixing plate, and the connecting frame abuts against the pin.

4. The resistance-assisted walking vehicle according to claim 3, characterized in that, The connecting frame has a limiting groove, and the fixing plate is provided with a limiting rod. The limiting rod is inserted into the limiting groove and slides along the limiting groove.

5. The resistance-assisted walking vehicle according to claim 3, characterized in that, It also includes a vehicle body, which is fixed to the rear wheel axle. The pin is disposed in a limiting groove of the vehicle body, and an abutment spring is provided between the pin and the limiting groove.

6. The resistance-assisted walking vehicle according to claim 5, characterized in that, It also includes a telescopic rod, which is mounted on the vehicle body and located at the rear end, and the telescopic rod can extend and retract along the vehicle body.

7. The resistance-assisted walking vehicle according to claim 3, characterized in that, The bottom surface of the folding component is an inclined surface.

8. The resistance-assisted walking vehicle according to claim 6, characterized in that, A front wheel axle is also provided between the vehicle body and the frame, and a steering mechanism is provided on the vehicle body, which is connected to the front wheel axle.

9. The resistance-assisted walking vehicle according to claim 1, characterized in that, The rear wheel resistance mechanism also includes a stop spring, which is sleeved on the second end and abuts against the bottom of the storage groove.

10. The resistance-assisted walking vehicle according to claim 9, characterized in that, The rear wheel resistance mechanism also includes an auxiliary locking member that passes through the rear wheel axle and is fixed to the side of the resistance member away from the assembly.