JP2024058315A - Walking aids - Google Patents

Abstract

[Problem] One of the objects of the present invention is to provide an ambulatory assist vehicle that can be used in a way that suits the physical condition of the user. [Solution] An ambulatory assist vehicle 100 according to one aspect of the present invention comprises a pair of support frames 21 to which a handle is connected, a pad member 14 that supports at least a part of the upper body of the user, and a pair of pad holding frames 26 that are connected to the pair of support frames 21 and hold the pad member 14, and is changeable between a first state in which the pad member 14 defines and supports the position of at least a part of the upper body of the user, and a second state in which the pad member 14 defines and supports the position of at least one of the user's elbow and forearm. [Selected Figure] Figure 9

Description

The present invention relates to a walking aid vehicle.

Conventionally, walking aids have been used that are equipped with armrests on which the user can place both elbows, allowing the user to bear a greater weight (see, for example, Patent Document 1).

JP 2022-59832 A

It is expected that the way a user wants to use an ambulatory support vehicle will differ depending on the user's physical condition. Therefore, there is a demand for an ambulatory support vehicle 100 that can be used in a way that suits the user's physical condition.

In view of the above, the object of the present invention is to provide a walking aid that can be used in a way that suits the user's physical condition.

In order to solve the above problems, one embodiment of the walking aid of the present invention comprises a pair of support frames to which a handle is connected, a pad member that supports at least a part of the upper body of the user, and a pair of pad holding frames that are connected to the pair of support frames and hold the pad member, and is changeable between a first state in which the pad member defines and supports the position of at least a part of the upper body of the user, and a second state in which the pad member defines and supports the position of at least one of the elbow and forearm of the user.

Another embodiment of the ambulatory assistance vehicle of the present invention includes a pair of support frames to which a handlebar is connected, a pair of front wheel frames each connected to the pair of support frames and supporting a pair of front wheels, and a lower frame connecting the pair of support frames at a position below the connection between the support frames and the front wheel frames.

Another embodiment of the walking aid of the present invention includes a pair of support frames to which a handle is connected, a pad member that supports at least a part of the user's forearm, a pad holding frame that is connected to the pair of support frames and holds the pad member, and a fixing part that fixes the pad member on the pad holding frame, and the fixing part is capable of changing the position at which the pad member is fixed in the front-rear direction.

The present invention provides a walking aid that can be used in a way that suits the user's physical condition.

FIG. 1 is a perspective view of an ambulatory assist vehicle according to a first embodiment. FIG. 1 is a side view of an ambulatory assist vehicle according to a first embodiment. FIG. 11 is a perspective view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 13 is a side view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 11 is a perspective view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 11 is a perspective view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 11 is a perspective view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 13 is a side view of an ambulatory assist vehicle according to a modified example of the first embodiment. FIG. 11 is a side view illustrating an manually propelled vehicle according to a second embodiment. FIG. 11 is a side view illustrating an manually propelled vehicle according to a second embodiment. 13A to 13C are diagrams illustrating an example of a configuration of a first pad member according to a second embodiment. FIG. 13 is a partial front view of the configuration of an manually propelled vehicle according to a third embodiment. FIG. 13 is a partial front view of the configuration of an manually propelled vehicle according to a third embodiment. FIG. 13 is a perspective view illustrating a configuration of a first modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a perspective view illustrating a configuration of a first modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a cross-sectional view of a pad member and a positioning member in a first modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a cross-sectional view of a pad member and a positioning member in a first modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a rear perspective view of a configuration of a second modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial rear view of a configuration of a second modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial rear view of a configuration of a second modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a diagram illustrating a third state in a second modified example of the manually propelled vehicle according to the third embodiment. FIG. 13 is a partial side view of a configuration of a third modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial side view of a configuration of a third modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial side view of a configuration of a third modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial side view of a configuration of a third modified example of the manually propelled vehicle of the third embodiment. FIG. 13 is a partial top view of the configuration of an manually propelled vehicle according to a fourth embodiment. FIG. 13 is a partial rear view of the configuration of the manually propelled vehicle of the fourth embodiment. FIG. 13 is a partial rear view of the configuration of the manually propelled vehicle of the fourth embodiment. 13A to 13C are diagrams illustrating an example of a method for attaching the positioning member of the fourth embodiment. FIG. 13 is a partial top view of the configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a partial top view of the configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a partial rear view of the configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a partial side view of a configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a partial rear view of the configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a partial side view of a configuration of an manually propelled vehicle according to a modified example of the fourth embodiment. FIG. 13 is a side view of an ambulatory assist vehicle according to a fifth embodiment. FIG. 13 is a top view of the pad member of the fifth embodiment. 13 is a side cross-sectional view illustrating the structure of a storage section according to a fifth embodiment. FIG. 13A to 13C are side cross-sectional views illustrating modified examples of the structure of the storage section of the fifth embodiment. 11A and 11B are diagrams illustrating an example of a storage unit that stores the pad member by attaching it to a vehicle body. FIG. 13 is a perspective view illustrating the configuration of an manually propelled vehicle according to a sixth embodiment. 13A and 13B are diagrams illustrating an example of a configuration of a fixing part of an manually propelled vehicle according to a sixth embodiment. 13 is a diagram showing in detail the configuration of a fixing portion of an manually propelled vehicle according to a sixth embodiment. FIG. This is a cross-sectional view of A-A in Figure 43. This is a cross-sectional view taken along line B-B of Figure 43. This is a cross-sectional view taken along the line CC of Figure 44. 13A to 13C are diagrams for explaining a procedure for adjusting the position of the pad member in the sixth embodiment. 13A to 13C are diagrams for explaining a procedure for adjusting the position of the pad member in the sixth embodiment. 13 shows a configuration example of a hook portion of the sixth embodiment. 13 shows a configuration example of a hook portion of the sixth embodiment.

The present invention will be described below based on a preferred embodiment with reference to the drawings. The dimensions of the components in each drawing are enlarged or reduced as appropriate to facilitate understanding. In addition, some components that are not important for explaining the embodiment are omitted in each drawing.

In addition, separate components that have something in common are distinguished by adding "first," "second," etc. to the beginning of their names, and these are omitted when referring to them collectively. In addition, terms that include ordinal numbers such as "first" and "second" are used to describe various components, but these terms are used only for the purpose of distinguishing one component from other components, and do not limit the components.

In this specification, "forward" and "rearward" refer to the forward and backward directions, respectively, of the manually propelled vehicle 100 in normal use. "Upward" and "downward" refer to the vertically upward and vertically downward directions, respectively, of the manually propelled vehicle 100 in normal use. "Right-left" or "width" refers to the horizontal direction perpendicular to the forward-backward direction, as seen from the user's point of view in normal use of the manually propelled vehicle 100.

1 is a perspective view of an manually propelled vehicle 100 according to a first embodiment. Fig. 2 is a side view of the manually propelled vehicle 100 according to the first embodiment. The manually propelled vehicle 100 according to this embodiment is, for example, an manually propelled vehicle 100 that assists the walking of an elderly person.

As shown in Figures 1 and 2, the ambulatory support vehicle 100 includes a main body frame 11 of the vehicle body, a pair of front wheels 12 and a pair of rear wheels 13 attached to the main body frame 11 of the vehicle body, and a pad member 14 attached to the main body frame 11. The ambulatory support vehicle 100 assists elderly people and people with weak leg strength in walking. When using the ambulatory support vehicle 100, the user places their forearms and elbows on the pad member 14 and applies their body weight (load) to the pad member 14, and while grasping the handle bar 15 and the brake lever 33, pushes the handle bar 15, applying force to the ambulatory support vehicle 100 and walking. Therefore, the handle bar 15 becomes a receiving part that receives force from the user, and the ambulatory support vehicle 100 moves with the force received by the receiving part.

The main body frame 11 includes a pair of support frames 21, a pair of front wheel frames 22, a pair of rear wheel frames 23, a mounting frame 24, a center frame 25, and a pair of pad holding frames 26. Each of these frames in the main body frame 11 may be connected, for example, by welding or via joint parts. As an example, the main body frame 11 is made of pipe-shaped members.

The pair of support frames 21 are inclined at a predetermined angle from a direction perpendicular to the installation surface of the ambulatory support vehicle 100. A pair of handles 17 are connected to the upper ends of the pair of support frames 21. A mounting frame 24 is connected to the lower ends of the pair of support frames 21. A pair of front wheel frames 22 are connected between the upper and lower ends of the pair of support frames 21.

The pair of front wheel frames 22 includes a vertical extension 22a extending vertically at the front end, a front-rear extension 22b extending longitudinally at the rear end, and a bent portion 22c bent to connect the vertical extension 22a and the front-rear extension 22b. A pair of front wheels 12 are attached to the lower end of the vertical extension 22a of the pair of front frames, and the pair of front wheels 12 are supported by the pair of front wheel frames 22. A pair of rear wheel frames 23 are rotatably connected to the rear end of the front-rear extension 22b of the pair of front wheel frames 22 via an axle 56. A pair of rear wheels 13 are attached to the other end side of the pair of rear wheel frames 23, and the pair of rear wheels 13 are supported by the pair of rear wheel frames 23. A pair of link mechanisms 18 are provided on the vertical extension 22a of the pair of front wheel frames 22 and the pair of rear wheel frames 23.

The pair of front wheel frames 22 are disposed between the pair of support frames 21. In this embodiment, the outer surfaces of the pair of front-rear extending portions 22b facing outward in the left-right direction are connected to the inner surfaces of the pair of support frames 21 facing inward in the left-right direction.

The erection frame 24 includes a lower frame 24a erected on the pair of support frames 21, and a pair of side frames 24b erected on the support frames 21 and the front wheel frame 22. The lower frame 24a connects the pair of support frames 21 to each other at a position lower than the connection position between the support frames 21 and the front wheel frame 22. In this embodiment, the lower frame 24a is constructed separately from the support frame 21. The pair of side frames 24b are connected to both left and right ends of the lower frame 24a, and extend from the connection portion with the lower frame 24a to be connected to the front wheel frame 22. In this embodiment, the lower frame 24a and the pair of side frames 24b are constructed as a single unit.

The central frame 25 is mounted to the pair of front wheel frames 22. This helps prevent the front wheel frames 22 from wobbling.

The pair of pad holding frames 26 are connected to the upper ends of the pair of support frames 21 and hold the pad members 14. In this embodiment, the pad holding frames 26 extend rearward from the support frames 21 integrally with the handle 17. The rear ends of the pair of pad holding frames 26 are each provided with a grip portion 27 that the user can grasp to stabilize their posture when seated.

The pair of handles 17 are provided generally horizontally with respect to the installation surface of the ambulatory support vehicle 100. The pair of handles 17 are formed, for example, from pipe-shaped members. A pipe-shaped handle bar 15 is formed integrally with the handles 17 on the front side of the pair of handles 17. One end of the handle bar 15 is connected to one of the pair of handles 17, and the other end of the handle bar 15 is connected to the other handle 17. The handle bar 15 may be formed from a member separate from the handles 17.

A pair of brake shoes 31 that can be mechanically contacted are provided on the outer circumference of the pair of rear wheels 13. The brake shoes 31 are connected to one end of a brake wire (not shown) arranged inside the main frame 11. The other end of the brake wire is connected to a wire connection mechanism of a pair of brake units 32 provided on both sides of the handlebar 15. Note that although the wire is stored inside the main frame 11, it may be configured so that the wire is visible to the user by arranging it on the outside of the main frame 11.

A brake lever 33 is disposed below and in front of the handlebar 15 so as to face the handlebar 15. Both ends of the brake lever 33 are connected to a pair of brake units 32. Both ends of the brake lever 33 are attached to the brake units 32 via a biasing means such as a coil spring. By pulling the brake lever 33 toward the user, the user can apply a mechanical brake by wire action. In other words, the brake shoe 31 is controlled by operating the brake lever 33.

When in use, the user pulls the brake lever 33 towards themselves (towards the handlebar 15) to the brake activation position. The brake wire connected to the brake lever 33 moves the brake shoe 31 and presses against the outer periphery of the rear wheel 13. When the user releases the brake lever 33, the brake lever 33 returns to its original position (normal position). At the same time, the brake shoe 31 also moves away from the rear wheel 13, and the mechanical brake is released.

The pad member 14 is attached to a pair of arm members 16 and is a member having a generally rectangular shape in a plan view, spanning between one arm member 16 and the other arm member 16. The pad member 14 is held on a pair of pad holding frames 26. In this embodiment, the pad member 14 supports at least a part of the user's upper body. For example, the pad member 14 defines and supports at least one position of the user's forearm, elbow, hand, chin, and chest. The shape of the pad member 14 is a horseshoe shape, a U-shape, etc., but is not limited to this and may be any other shape. The pad member 14 is a cushioning material such as a sponge or rubber material placed on a plate material such as a metal plate, a wood plate, or a resin plate, and covered with any resin or cloth covering material. However, the pad member 14 is not limited to this configuration and may be any other configuration, such as a configuration of only a plate material.

One end of each of the pair of arm members 16 is fixed to both the left and right sides of the underside of the pad member 14. The other end of each of the pair of arm members 16 is rotatably attached to a rotating shaft portion 28 fixed to the handle 17. The rotating shaft portion 28 is, for example, a hinge mechanism. The pair of arm members 16 rotate around the outside of the pair of handle bars 15 with the rotating shaft portion 28 as a fulcrum. When the user pushes (flips) the pad member 14 upward, the pad member 14 rotates in the direction of the arrow R1 in FIG. 2, and the pad member 14 is fixed at a predetermined position (retracted position) in which the pad member 14 stands upright (see the imaginary line in FIG. 2). In the first embodiment, the rotating shaft portion 28 is configured to be rotatable to the retracted position in FIG. 2, but is not limited thereto. For example, a stopper that stops the pad member 14 when the rotating shaft portion 28 rotates to the retracted position in FIG. 2 may be provided on the pad member 14, the handle bar 15, the brake lever 33, etc.

Here, a configuration has been shown in which the user manually pushes up the pad member 14, but as another example, a locking mechanism (not shown) may be provided, and the pad member 14 may be automatically pushed up by releasing the lock with the locking mechanism. Alternatively, an electric mechanism (motor, etc.) may be provided to rotate the arm member 16, and the electric mechanism may be operated by activating a switch to push up the pad member 14.

Reinforcing pipes 19 are provided at the upper and lower ends of the pair of rear wheel frames 23, connecting the upper and lower ends of the pair of rear wheel frames 23, respectively.

A lever 20 bent upwards and formed into a U-shape is provided between the pair of link mechanisms 18. When the user pulls the lever 20 upward, the link mechanism 18 is folded so that the pair of rear wheel frames 23 and the pair of rear wheels 13 approach the pair of front wheels 12, and the entire walking aid is folded.

However, when the ambulatory support vehicle 100 is used depending on the physical condition of the user, a larger load may be placed on the ambulatory support vehicle 100, and therefore a more rigid ambulatory support vehicle 100 is required. According to the first embodiment, by providing a lower frame 24a that connects the pair of support frames 21 together at a position lower than the connection position between the support frame 21 and the front wheel frame 22, the overall rigidity of the main frame 11 can be increased, thereby improving the reliability and safety of the ambulatory support vehicle 100.

A modified version of the first embodiment is described.

In the first embodiment, the lower frame 24a is provided at the lower end of the support frame 21, but this is not limited thereto, and the lower frame 24a may be provided at any position below the connection position between the support frame 21 and the front wheel frame 22. However, when the lower frame 24a is provided at the lower end of the support frame 21, the rigidity of the entire main body frame 11 can be more effectively increased.

In the first embodiment, the pair of side frames 24b are connected to the upper and lower extending portions 22a of the front wheel frame 22, but this is not limited thereto and they may be connected to any position on the front wheel frame 22. In particular, as shown in FIG. 3, the side frames 24b may be connected to the position where the front wheel frame 22 and the support frame 21 are connected so as to extend parallel to the extension direction of the support frame 21. As a result, as shown in FIG. 4, when the modified version of the ambulatory support vehicle 100 is viewed from the side, the side frames 24b are hidden by the support frame 21, resulting in a simple design and improving the aesthetic appeal.

The mounting frame 24 in the first embodiment includes a pair of side frames 24b, but this is not necessary. Also, as shown in FIG. 5, the central frame 25 is mounted on a pair of front wheel frames 22, but it may be mounted on a pair of side frames 24b.

The support frame 21 in the first embodiment is inclined at a predetermined angle from a direction perpendicular to the installation surface of the ambulatory support vehicle 100, but may be perpendicular to the installation surface. Also, the support frame 21 is connected to the front-rear extension portion 22b, but may be connected to, for example, the bent portion 22c.

In the first embodiment, the pad holding frame 26 is configured integrally with the handle 17 and extends rearward from the support frame 21, but is not limited to this and may be configured separately from the handle 17 and extend rearward from the support frame 21.

In this embodiment, the lower frame 24a is configured separately from the support frame 21, but this is not limited thereto, and it may be formed integrally with the support frame 21 as shown in FIG. 6. Also, in this embodiment, the lower frame 24a is formed integrally with the side frame 24b, but this is not limited thereto, and it may be formed separately from the side frame 24b.

7 and 8, the walking aid vehicle 100 may include a seat 35 on which the user sits and a storage section 60 made of resin or cloth. The storage section 60 is provided so as to be suspended between the front and rear extensions 22a and the bent sections 22c of the pair of front wheel frames 22. The storage section 60 is bag-shaped with an open top, and contains and stores items. The seat section 35 for sitting is provided on the upper part of the storage section 60 and also functions as a lid for the storage section 60. When the user rotates the pad member 14 to fix it in a predetermined position (retracted position) in which the pad member 14 is inverted, a space for containing the upper body of the user is secured on the seat section 35 (see FIG. 8). In this state, the user can sit on the seat section 35 with the pad member 14 facing the back while holding the pair of grip sections 27 with both hands. By holding the grip section 27, the user can stabilize his/her posture when sitting. In this way, the pad member 14 prevents the user from sitting on the seat portion 35 of the ambulatory support vehicle 100 in the position before being pushed up (normal position), and allows the user to sit on the seat portion 35 in the position after being pushed up (retracted position). In this embodiment, the provision of the lower frame 24a increases the rigidity of the entire main body frame 11, thereby improving the reliability and safety of the ambulatory support vehicle 100 when the user sits on the seat portion 35.

In the first embodiment, the ambulatory support vehicle 100 has a grip portion 27, but this does not have to be included.

Second embodiment Hereinafter, a second embodiment of the present invention will be described. In the drawings and description of the second embodiment, the same or equivalent components and members as those of the first embodiment are denoted by the same reference numerals. Descriptions that overlap with the first embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the first embodiment.

Figures 9 and 10 are side views illustrating an example of an ambulatory support vehicle 100 of the second embodiment. The pad member 14 of the second embodiment includes a pair of first pad members 14a and a second pad member 14b. In the second embodiment, the rotating shaft portion 28 is configured to be rotatable beyond the retracted position of Figure 2 until the second pad member 14b abuts against the support frame 21 (see Figure 10).

Figure 11 illustrates the configuration of the first pad member 14a of the second embodiment. The pair of first pad members 14a are held on a pair of pad holding frames 26. The pair of first pad members 14a are attached to the rear ends of the pair of pad holding frames 26 and to a pipe member 29 that is installed between the pair of pad holding frames 26. The pair of first pad members 14a are configured to be able to support at least one of the user's elbows and forearms. The first pad members 14a are primarily used by users with a relatively small degree of decline in physical ability, who can basically drive the ambulatory support vehicle 100 without the need to support their body with the pad members 14, for example, but who support their elbows, etc., on the pad members 14 during rest.

The second pad member 14b is configured to be held on the pair of pad holding frames 26 across the space between them. The second pad member 14b is a member that is attached to the pair of arm members 16 and is generally rectangular in plan view, spanning between the pair of arm members 16. The second pad member 14b is configured to be able to support at least a portion of the user's upper body by defining its position. The second pad member 14b is primarily used by users with a relatively large degree of decline in motor skills, who basically drive the ambulatory support vehicle 100 with at least a portion of their body always supported by the pad member 14.

The length of the first pad member 14a in the left-right direction is smaller than the length of the second pad member 14b in the left-right direction. The shapes of the first pad member 14a and the second pad member 14b are horseshoe-shaped, U-shaped, etc., but are not limited to these and may be any other shape. The first pad member 14a and the second pad member 14b are made by placing a cushioning material such as a sponge or rubber material on a board material such as a wooden board or a resin board and covering it with any resin or cloth covering material. However, the first pad member 14a and the second pad member 14b are not limited to this configuration and may be any other configuration, such as a configuration of only board material.

Here, FIG. 9 shows a state in which the second pad member 14b is used in the ambulatory support vehicle 100 of the second embodiment. First, the case in which the second pad member 14b is used will be described. As shown in FIG. 9, the second pad member 14b is placed on the first pad member 14a, so that the second pad member 14b is held on the first pad member 14a. As a result, the user can use the second pad member 14b. The state in which the second pad member 14b is held on the first pad member 14a at this time is an example of a first state in which the pad member 14 defines and supports the position of a part of the upper body of the user. Note that in this state, the first pad member 14a is covered by the second pad member 14b, so the user cannot use the first pad member 14a.

Next, a case where the first pad member 14a is used will be described. FIG. 10 shows a state in which the first pad member 14a is used. From the state shown in FIG. 9, the user pushes (flips) the second pad member 14b upward, thereby rotating the second pad member 14b in the direction of the arrow R1 in FIG. 9. This removes the cover of the second pad member 14b from the first pad member 14a, and the first pad member 14a appears in a top view. The second pad member 14b then rotates through the inside of the handlebar 15 and the brake lever 33, and stops in a state where it abuts against the support frame 21 as shown in FIG. 10. In this state, the second pad member 14b is held in a shape along the longitudinal direction of the support frame 21, and the first pad member 14a appears completely in a top view, allowing the user to use the first pad member 14a. The state where the second pad member 14b is held along the support frame 21 and the first pad member 14a is completely exposed is an example of the second state in which the pad member 14 defines and supports the position of at least one of the user's elbow and forearm. In this way, the ambulatory support vehicle 100 of the second embodiment can be changed between the first state and the second state by rotating the second pad member 14b using the rotating shaft portion 28.

Here, conventionally, there are walking aids equipped with a relatively small pad member such as the first pad member 14a that can support the user's elbows, etc., and walking aids equipped with a relatively large pad member such as the second pad member 14b that can support at least a part of the user's upper body, but there was no walking aid equipped with both in one vehicle. Therefore, the user selected one of these depending on the degree of decline in their physical ability. However, as the user's physical ability subsequently declines further or improves through walking training, etc., it is assumed that the walking aid used up until then will no longer be suitable for the user, and the pad member 14 of the other walking aid equipped with a different pad member will be more suitable. In this case, for example, if the walking aid is changed to another walking aid or the walking aid used is modified, the usability will change due to changes in the manufacturer or specifications, etc., and the user may feel inconvenienced.

In the second embodiment, the pad member 14 can be changed between a first state in which the pad member 14 defines and supports the position of a part of the user's upper body, and a second state in which the pad member 14 defines and supports the position of at least one of the user's elbow and forearm. According to the second embodiment, it becomes possible to use the ambulatory support vehicle 100 in accordance with the user's physical condition without changing or modifying the ambulatory support vehicle 100.

Here, the pad member 14 is necessarily thick because it needs to be strong and comfortable enough to support the weight of the user and to withstand long-term use. Therefore, when one walking aid vehicle 100 serves as both the first pad member 14a and the second pad member 14b, the storage and replacement of unused pad members 14 is an issue. In the second embodiment, the first state is a state in which the second pad member 14b is held on the first pad member 14a, and the second state is a state in which the second pad member 14b is rotated from the first state to a position lower than the handle 17 with the rotation shaft portion 28 as a fulcrum. With this configuration, the simple action of rotating the second pad member 14b makes it possible to easily change the pad member 14 being used without using tools or the like.

A modified example of the second embodiment will be described.

In the second embodiment, the first pad member 14a is held on the pad holding frame 26 and the pipe member 29, but this is not limited thereto, and it is sufficient that it is held by at least the pad holding frame 26, and the pipe member 29 is not necessary.

In the second embodiment, the second state is a state in which the second pad member 14b is held along the support frame 21, but this is not limited thereto, and the second state may be a state in which the second pad member 14b is rotated to a position lower than the handlebars 17. Therefore, the second pad member 14b only needs to be able to rotate 180° or more around the rotation shaft 28 as a fulcrum. Also, to improve safety, it is desirable that the second pad member 14b and the front wheel frame 22, etc. are positioned and sized so that the second pad member 14b does not extend in front of the front wheel 12 when the second pad member 14b rotates.

In the second embodiment, the installation frame 24 is provided, but the installation frame 24 does not have to be provided. The same applies to the following embodiments.

Third embodiment Hereinafter, a third embodiment of the present invention will be described. In the drawings and description of the third embodiment, the same or equivalent components and members as those of the second embodiment are denoted by the same reference numerals. Descriptions that overlap with the second embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the second embodiment.

Figures 12 and 13 are front views partially illustrating the configuration of the ambulatory support vehicle 100 of the third embodiment. Figure 12 shows the state in which the first pad member 14a is used in the ambulatory support vehicle 100 of the third embodiment, and Figure 13 shows the state in which the second pad member 14b is used. The ambulatory support vehicle 100 of the third embodiment includes a positioning member 40 that is configured separately from the second pad member 14b and removable from the second pad member 14b, and that is held on the second pad member 14b, thereby making it possible to provide a protrusion 44 on the second pad member 14b that determines the position of at least one of the user's elbow and forearm on the second pad member 14b.

The positioning member 40 includes a protrusion mounting portion 41, an arm member 42, and a rotating shaft portion 43. The protrusion mounting portion 41 is connected to one end of the arm member 42, and the rotating shaft portion 43 is connected to the other end of the arm member 42. The rotating shaft portion 43 is attached to, for example, the second pad member 14b.

First, a case where the first pad member 14a is used will be described. As shown in FIG. 12, a protrusion installation portion 41 is placed on and held on the second pad member 14b, thereby providing a convex portion 44 on the second pad member 14b. At this time, the first pad member 14a is formed by the convex portion 44 and a portion of the second pad member 14b that is on the outer side of the convex portion 44 in the width direction. As a result, the user can use the first pad member 14a. The state in which the convex portion 44 is provided on the second pad member 14b at this time is an example of the second state.

Next, a case where the second pad member 14b is used will be described. When the user pushes (jumps) the protrusion installation portion 41 and the arm member 42 upward from the state shown in FIG. 12, they rotate in the direction of the arrow R2 in FIG. 12 with the rotation shaft portion 43 as a fulcrum. This causes the protrusion installation portion 41 to be removed from the second pad member 14b, and the second pad member 14b is in a state where the protrusion portion 44 is not provided thereon. As a result, the user can use the second pad member 14b. The state where the protrusion portion 44 is not provided on the second pad member 14b at this time is an example of the first state. After that, the protrusion portion rotates through the outside of the second pad member 14b, and stops in a state where it abuts against the support frame 21 as shown in FIG. 13 (see FIG. 13).

In the third embodiment, the pad member 14 is configured to be held on a pair of pad holding frames 26 across the pair of pad holding frames 26, and the ambulatory support vehicle 100 is provided with a positioning member 40 that provides a protrusion 44 on the pad member 14 that determines the position of at least one of the user's elbow and forearm on the pad member 14 by being held on the pad member 14, the first state being a state in which the protrusion 44 is not provided on the pad member 14, and the second state being a state in which the protrusion 44 is provided on the pad member 14. With this configuration, it becomes possible to use the ambulatory support vehicle 100 in accordance with the physical condition of the user without changing or modifying the ambulatory support vehicle 100.

In addition, according to the third embodiment, the pad member 14 to be used can be easily changed by the simple action of rotating the protrusion installation portion 41 of the positioning member 40 without using tools or the like.

A modified example of the third embodiment will be described.

First Modification Figures 14 and 15 are perspective views illustrating the configuration of a first modification of the manually propelled vehicle 100 of the third embodiment. Figures 16 and 17 are cross-sectional views of the pad member 14 and the positioning member 40 in the first modification of the manually propelled vehicle 100 of the third embodiment. The positioning member 40 of this modification has an asymmetric flat plate shape on both the top and bottom, with the first surface 45a being a flat surface and the second surface 45b on the opposite side having two protrusions 45c. As shown in Figures 16 and 17, the second pad member 14b has a recess 14c that receives and holds the protrusions 45c when the second surface 45b is facing downward.

When using the second pad member 14b, the flat first surface 45a faces upward as shown in Figs. 14 and 16. As a result, the convex portion 44 is not provided on the second pad member 14b, and the user can use the second pad member 14b. When using the first pad member 14a, the second surface 45b faces upward as shown in Figs. 15 and 17. As a result, the convex portion 44 is provided on the second pad member 14b by the protrusion 45c, and the user can use the first pad member 14a.

Second Modification Fig. 18 is a rear perspective view of the configuration of a second modified version of the manually propelled vehicle 100 of the third embodiment. Figs. 19 and 20 are rear views partially showing the configuration of the second modified version of the manually propelled vehicle 100 of the third embodiment. Fig. 19 shows a mode in which the first pad member 14a is used in the second modified version of the manually propelled vehicle 100 of the third embodiment. Fig. 20 shows a mode in which the second pad member 14b is used in the second modified version of the manually propelled vehicle 100 of the third embodiment.

The positioning member 40 of this modified example has a flat plate shape and is made of a cushioning material such as sponge or rubber. A hook-and-loop fastener 46 is provided on the back surface of the positioning member 40. A front surface fastener 14d is provided on the front surface of the second pad member 14b, and a back surface fastener 14e is provided on the back surface. The positioning member 40 is detachable from the front surface fastener 14d and the back surface fastener 14e of the second pad member 14b via the hook-and-loop fastener 46. Therefore, the positioning member 40 is configured to be fixed to the front and back surfaces of the second pad member 14b, respectively. By making the positioning member 40 fixable to the back surface, the positioning member 40 can be easily stored when not in use.

When using the first pad member 14a, the positioning member 40 is attached to the front side fastener 14d via the hook-and-loop fastener 46 as shown in FIG. 19. As a result, the ends on both sides of the width of the positioning member 40 provide protrusions 44 on the second pad member 14b, allowing the user to use the first pad member 14a. When using the second pad member 14b, the positioning member 40 is attached to the back side fastener 14e via the hook-and-loop fastener 46 as shown in FIG. 20. As a result, the protrusions 44 are not provided on the second pad member 14b, allowing the user to use the second pad member 14b.

Figure 21 is a diagram illustrating the third state in the second modified example of the ambulatory support vehicle 100 of the third embodiment. Here, the third state is a state in which the second pad member 14b is rotated and fixed to a predetermined position (retracted position) where the pad member 14 stands upright around the rotating shaft portion 28 (see Figure 21). In this modified example, the pad member 14 can be rotated to a position where the pad member 14 stands upright around the rotating shaft portion 28, and the positioning member 40 is configured to be fixed to the back surface of the pad member 14 in the first state. According to this modified example, when the user sits on the seat portion 35 in the third state, the positioning member 40 can be used as a cushion for a backrest.

Third Modification Figures 22 to 25 are side views partially showing the configuration of a third modification of the manually propelled vehicle 100 of the third embodiment. Figure 22 shows the state in which the positioning member 40 is attached to the second pad member 14b in order to use the first pad member 14a, and Figure 23 shows the state after the positioning member 40 is attached to the second pad member 14b in order to use the first pad member 14a. Figure 22 shows the state in which the positioning member 40 is attached to the second pad member 14b in order to use the second pad member 14b in the third modification, and Figure 23 shows the state after the positioning member 40 is attached to the second pad member 14b in order to use the second pad member 14b.

In the second modified example, the positioning member 40 is attached to and detached from the second pad member 14b using the hook-and-loop fastener 46, the front side fastener 14d, and the back side fastener 14e, but this is not limited to the above. In the third modified example, a U-shaped or J-shaped hook portion 47 is attached to the back surface of the pad portion 49 of the positioning member 40. The hook portion 47 is engageable with the rear end portion 14h on the rear side of the central portion 14g of the second pad member 14b (see FIG. 18). The positioning member 40 has the same configuration as the second modified example, except that the hook portion 47 is attached instead of the hook-and-loop fastener 46.

The hook portion 47 includes an attachment surface 47a to which the pad portion 49 of the positioning member 40 is attached, an abutment surface 47b that extends perpendicular to the surface direction of the attachment surface 47a and against which the rear end 14h of the second pad member 14b abuts when the hook portion 47 is inserted into the rear end 14h of the second pad member 14b, and a screw hole forming surface 47c that extends perpendicular to the surface direction of the abutment surface 47b and in which a screw hole 47d is formed.

When using the first pad member 14a, as shown in Figures 22 and 23, with the pad portion 49 of the positioning member 40 facing upward, the hook portion 47 is inserted into the rear end portion 14h of the second pad member 14b to engage it, and then the screw 48 is inserted into the screw hole 14f of the second pad member 14b through the screw hole 47d of the hook portion 47, thereby fixing the second pad member 14b and the positioning member 40. As a result, the convex portion 44 is provided on the second pad member 14b, and the user can use the first pad member 14a.

When using the second pad member 14b, as shown in Figures 24 and 25, the hook portion 47 is inserted into the rear end portion 14h of the second pad member 14b with the pad portion 49 of the positioning member 40 facing downward, and then the screw 48 is inserted into the screw hole 14f of the second pad member 14b through the screw hole 47d of the hook portion 47 to fix the second pad member 14b and the positioning member 40. As a result, the convex portion 44 is not provided on the second pad member 14b, and the user can use the second pad member 14b. In addition, the pad portion of the positioning member 40 can be stored on the back side of the second pad member 14b. According to this modified example, when the user sits on the seat portion 35 in the third state, the positioning member 40 can be used as a cushion for the backrest.

Fourth embodiment Hereinafter, a fourth embodiment of the present invention will be described. In the drawings and description of the fourth embodiment, the same or equivalent components and members as those of the third embodiment are denoted by the same reference numerals. Descriptions that overlap with the third embodiment will be omitted as appropriate, and the description will focus on the configuration that differs from the second embodiment.

Figure 26 is a top view partially illustrating the configuration of the ambulatory support vehicle 100 of the fourth embodiment. Figures 27 and 28 are rear views partially illustrating the configuration of the ambulatory support vehicle 100 of the fourth embodiment. Figure 27 shows an example in which the first pad member 14a is used in the ambulatory support vehicle 100 of the fourth embodiment, and Figure 28 shows an example in which the second pad member 14b is used. The positioning member 40 of the ambulatory support vehicle 100 of the fourth embodiment is configured integrally with the second pad member 14b, and a protrusion 44 can be provided on the second pad member 14b.

The second pad member 14b of the fourth embodiment includes a central portion 14g and positioning members 40 located at both ends of the second pad member 14b in the width direction. The central portion 14g is fixed to a pipe member 29 (not shown in FIG. 26). The positioning member 40 includes a first pad surface 50 and a second pad surface 51. The first pad surface 50 has a concave shape in which the central portion is concave in the front-rear direction so as to define and support the position of at least one of the user's elbow and forearm. The second pad surface 51 has a shape that is inclined downward from the outer end in the width direction to the inner end in the width direction in the front-rear direction when the second pad surface 51 is facing upward. For example, hook-and-loop fasteners (not shown) for fixing the first pad surface 50 or the second pad surface 51 in an upward position are provided on the opposite surfaces of the first pad surface 50 and the second pad surface 51 and the upper surface of the pipe member 29.

The case where the first pad member 14a is used will be described. As shown in FIG. 27, by facing the first pad surface 50 of the positioning member 40 upward, a convex portion 44 is provided on the second pad member 14b by the widthwise inner end of the concave-shaped first pad surface 50. At this time, the first pad member 14a is formed by the convex portion 44 and the part of the second pad member 14b that is widthwise outer than the convex portion 44. As a result, the user can use the first pad member 14a.

The case where the second pad member 14b is used will be described. As shown in FIG. 28, by facing the second pad surface 51 upward, the second pad surface 51, which is inclined downward from the outside to the inside in the width direction, becomes flush with the upper surface of the central portion 14g, and no protrusion 44 is provided on the second pad member 14b. As a result, the user can use the second pad member 14b.

When one of the first pad surface 50 and the second pad surface 51 faces upward and the other surface faces upward, the positioning members 40 can be rotated and attached to the pipe member 29 so that the other surface faces upward. Also, as shown in FIG. 29, the positioning members 40 on both the left and right sides can be swapped and the positioning members 40 can be attached to the pipe member 29 so that the other surface faces upward.

In the fourth embodiment, the pad member 14 is provided with a positioning member 40 configured to be capable of changing its orientation on the pad holding frame 26, and a protrusion 44 is provided on the pad member 14 to determine the position of at least one of the user's elbow and forearm on the pad member 14 in a predetermined orientation. With this configuration, the pad member 14 to be used can be easily changed without using tools or the like by the simple action of changing the surface to be turned upward to the first pad surface 50 or the second pad surface 51. In addition, since no unused pad members 14 are generated, there is no need to provide a separate mechanism for storing and managing the pad members 14.

A modified example of the fourth embodiment will be described.

Figures 30 and 31 are top views partially illustrating the configuration of an ambulatory vehicle 100 according to a modification of the fourth embodiment. Figures 32 and 34 are rear views partially illustrating the configuration of an ambulatory vehicle 100 according to a modification of the fourth embodiment. Figures 33 and 35 are side views partially illustrating the configuration of an ambulatory vehicle 100 according to a modification of the fourth embodiment. Figures 30, 32, and 33 show an aspect in which the second pad member 14b is used in the ambulatory vehicle 100 according to a modification of the fourth embodiment. Figures 31, 34, and 35 show an aspect in which the first pad member 14a is used in the ambulatory vehicle 100 according to a modification of the fourth embodiment.

The positioning member 40 of this modified example has a third pad surface 52 that can constitute the first pad member 14a or the second pad member 14b. For example, a hook-and-loop fastener (not shown) is provided on the surface opposite the third pad surface 52 and on the upper surface of the pipe member 29 to fix the third pad surface 52 in an upward position. The positioning member 40 can be positioned in the direction of arrow R3 in Figures 30 and 31 with the third pad surface 52 facing upward. The third pad surface 52 of the positioning member 40 of this modified example has an inclined portion 52a that is inclined downward from the outer side to the inner side in the width direction (see Figures 32 and 35). The third pad surface 52 of the positioning member 40 of this modified example has a recessed portion 52b (see Figures 33 and 34).

The case where the second pad member 14b is used will be described. With the third pad surface 52 facing upward, the orientation is adjusted in the direction of arrow R3 in Figures 30 and 31, so that the arrangement direction of the inclined ends 52c on both sides of the inclined portion 52a is in the front-to-rear direction (see Figure 30). This makes the third pad surface 52, which is inclined downward from the outside to the inside in the width direction, flush with the upper surface of the central portion 14g (see Figure 32), and no protrusion 44 is provided on the second pad member 14b. As a result, the user can use the second pad member 14b.

The case where the first pad member 14a is used will be described. With the third pad surface 52 facing upward, the orientation is adjusted in the direction of arrow R3 in Figures 30 and 31, so that the arrangement direction of the concave ends 52d on both sides of the concave shape in the concave 52b is in the front-to-rear direction (see Figure 31). As a result, the convex portion 44 is provided on the second pad member 14b by the widthwise inner end of the concave-shaped third pad surface 52 (see Figure 34). At this time, the first pad member 14a is formed by the convex portion 44 and the part of the second pad member 14b that is widthwise outer than the convex portion 44. As a result, the user can use the first pad member 14a.

Fifth embodiment Hereinafter, a fifth embodiment of the present invention will be described. In the drawings and description of the fifth embodiment, the same or equivalent components and members as those of the second embodiment are denoted by the same reference numerals. Descriptions that overlap with the second embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the second embodiment.

Figure 36 is a side view of the ambulatory support vehicle 100 of the fifth embodiment. The first pad member 14a and the second pad member 14b of the fifth embodiment are configured to be detachable on the arm member 16 and the pipe member 29. In the fifth embodiment, the removed pad member 14 is stored in the storage section 60. The storage section 60 of the fifth embodiment is an example of a storage section. The second pad member 14b of the fifth embodiment has a pad portion 14i that is divided into two so that it can be easily stored in the storage section 60 when removed (see Figure 37). For example, hook-and-loop fasteners (not shown) are provided on the back surfaces of the first pad member 14a and the second pad member 14b and on the upper surfaces of the arm member 16 and the pipe member 29.

In the fifth embodiment, the pad member 14 to be used can be selected from the first pad member 14a and the second pad member 14b by replacing the pad member 14 attached to the arm member 16 and the pipe member 29. When changing the pad member 14 to be used from the first pad member 14a to the second pad member 14b, the first pad member 14a is removed from the arm member 16 and the pipe member 29, the second pad member 14b stored in the storage unit is taken out and attached and fixed to the arm member 16 and the pipe member 29, and the removed first pad member 14a is stored in the storage unit. When changing the pad member 14 to be used from the second pad member 14b to the first pad member 14a, the second pad member 14b is removed from the arm member 16 and the pipe member 29, the first pad member 14a stored in the storage unit is taken out and attached and fixed to the arm member 16 and the pipe member 29, and the removed second pad member 14b is stored in the storage unit. Therefore, in the first state, the pair of first pad members 14a is stored in the storage section, and in the second state, the pair of second pad members 14b is stored in the storage section.

38 is a side cross-sectional view illustrating the structure of the storage section 60 of the fifth embodiment. As shown in FIG. 38, the storage section 60 of the fifth embodiment includes a luggage storage section 61 for storing the user's luggage, and a pad storage section 62 for storing one of the first pad member 14a and the second pad member 14b when the other is removed. In the structural example of the storage section 60 of FIG. 38, the luggage storage section 61 is provided on the front side, and the pad storage section 62 is provided on the rear side. By dividing the second pad member 14b into two pad portions 14i, the second pad member 14b, which is designed to be relatively large to support at least a part of the upper body of the user, can be easily stored in the pad storage section 62.

According to the fifth embodiment, by providing a storage section for storing the pad member 14, the risk of losing the pad member 14 can be reduced.

A modified example of the fifth embodiment will be described.

In the fifth embodiment, the luggage storage section 61 and the pad storage section 62 are separated into front and rear sections, but this is not limited to the above. For example, as shown in FIG. 39, the luggage storage section 61 may be provided on the upper side, and the pad storage section 62 may be provided on the lower side. Also, the luggage storage section 61 and the pad storage section 62 may not be separated in the storage section 60, and luggage and pad members 14 may be stored in a single space.

In the fifth embodiment, the first pad member 14a and the second pad member 14b are removably mounted on the arm member 16 and the pipe member 29, but this is not limited thereto, and they may be removably mounted on the support frame 21, for example. Also, the second pad member 14b does not have to be divided into two pad portions 14i.

The storage section 60 is arranged so as to be suspended between the front and rear extensions 22a and the bent sections 22c of the pair of front wheel frames 22, but is not limited to this and may be arranged in other locations on the ambulatory support vehicle.

In the fifth embodiment, the storage unit stores the pad member 14, but the present invention is not limited to this. The pad member 14 may be attached to the vehicle body for storage. FIG. 40 shows an example of a storage unit that stores the pad member 14 by attaching it to the vehicle body. As shown in FIG. 40, in this modification, a holding unit 63 that detachably holds the pad member 14 is provided on the vertical extension unit 22a22. The holding unit 63 in this modification is an example of a storage unit. The holding unit 63 fixes the attached pad member 14 with a hook-and-loop fastener or a screw. In this way, the holding unit 63 as a storage unit may store one of the removed first pad member 14a and second pad member 14b at a position forward of the support frame 21 of the vehicle body. According to this configuration, the pad member 14 can function as a cushion that cushions the impact of a frontal collision.

Sixth embodiment Hereinafter, a sixth embodiment of the present invention will be described. In the drawings and description of the sixth embodiment, the same or equivalent components and members as those of the first embodiment are denoted by the same reference numerals. Descriptions that overlap with the first embodiment will be omitted as appropriate, and the description will focus on the configurations that differ from the first embodiment.

Figure 41 is a perspective view illustrating the configuration of an ambulatory assist vehicle 100 of the sixth embodiment. The ambulatory assist vehicle 100 of the sixth embodiment includes a fixing portion 70 that fixes the pad member 14 on the pad holding frame 26. The fixing portion 70 can change the position at which the pad member 14 is fixed on the pad holding frame 26 in the front-rear direction.

Figure 42 is a diagram illustrating the configuration of the fixing part 70 of the walking aid vehicle 100 of the sixth embodiment. Figure 42 is a diagram of the pad member 14 when viewed from below, showing an example in which the pad member 14 is arranged on the rear side. The fixing part 70 includes first and second mounting parts 71 and 72 for attaching and fixing the pad member 14 to the rear pipe member 29a, and a third mounting part 73 for attaching and fixing the pad member 14 to the arm member 16. The first to third mounting parts 71 to 73 are arranged from the rear side (user side) to the front side of the back surface of the pad member 14 in the order of the first mounting part 71, the second mounting part 72, and the third mounting part 73. The first to third mounting parts 71 to 73 are made of rubber, resin, or the like. A screw hole 76a for rear installation is provided on the outer side of the width direction of the pipe member 29, and a screw hole 76b for front installation is provided on the inner side of the width direction of the pipe member 29. A screw hole 77a for rear installation is provided on the rear side of the arm member 16, and a screw hole 77b for front installation is provided on the front side of the arm member 16.

Figure 43 is a diagram showing in detail the configuration of the fixing part of the ambulatory support vehicle 100 of the sixth embodiment. Figure 44 is a cross-sectional view taken along line A-A in Figure 43, and Figure 45 is a cross-sectional view taken along line B-B in Figure 43. Figure 46 is a cross-sectional view taken along line C-C in Figure 44. As shown in Figures 42 to 44, the first to third mounting parts 71 to 73 are fixed to both the left and right sides of the pad member 14 by pressing screws 78 to 80 into clinching nuts 83 provided on a sheet metal member 82 on the back surface of the pad member 14. As shown in Figure 44, the third mounting part 73 is fixed to the arm member 16 by inserting a screw 75 into a screw hole 77a for rear installation of the arm member 16 and a nut 81 provided inside the third mounting part 73. Similarly, the second mounting portion 72 is fixed to the rear pipe member 29a by inserting a screw 75 into a screw hole 76a for rear installation of the rear pipe member 29a and a nut (not shown) provided inside the second mounting portion 72. As shown in FIG. 46, inside the third mounting portion 73, the distance D between the inner walls is the width of the nut 81, and the inner wall of the width of the nut 81 presses the nut 81 to prevent it from rotating (the same applies to the first and second mounting portions 71 and 72). In addition, in the pipe member 29 and the arm member 16, the periphery of the screw holes 76a, 76b, 77a, and 77b is processed flat to make it easier to insert the screws 74 and 75.

The procedure for adjusting the position of the pad member 14 in the walking aid vehicle 100 of the sixth embodiment will be described with reference to Figures 47 and 48. Figure 47 shows a state in which the pad member 14 is arranged on the rear side (rear side arrangement state), and Figure 48 shows a state in which the pad member 14 is arranged on the front side (front side arrangement state). In the rear side arrangement state of Figure 47, the screws 74, 75 on both the left and right sides are inserted and fixed into the second and third mounting parts 72 and 73 through the screw holes 76a, 77a, respectively, thereby fixing the pad member 14. When changing from this rear side arrangement state to the front side arrangement state, after removing the four screws 74, 75 on both the left and right sides from the rear side arrangement state of Figure 47 (dotted circle in Figure 47), the pad member 14 is moved to the front side, and the screws 74, 75 on both the left and right sides are inserted and fixed into the first and third mounting parts 71 and 73 through the screw holes 76b, 77b, respectively (dotted circle in Figure 48), thereby fixing the pad member 14. To change from the front side placement state to the rear side placement state, move the pad member 14 to the rear side and secure it in place by following the steps above in reverse.

According to the sixth embodiment, the position of the pad member 14 can be easily adjusted forward and backward, making it possible to use the walking aid vehicle 100 that better fits the user's body.

In the sixth embodiment, the front pipe member 29b is provided between the pair of arm members 16, but the front pipe member 29b does not have to be provided.

In the sixth embodiment, the fixing portion fixes the pad member 14 onto the pad holding frame 26 via the arm member 16 and the pipe member 29 by fixing the first to third mounting portions 71 to 73 to the arm member 16 and the pipe member 29, but the pad member 14 may also be fixed onto the pad holding frame 26 by directly fixing the first to third mounting portions 71 to 73 to the pad holding frame 26.

In the sixth embodiment, the fixing portion includes the first to third mounting portions 71 to 73, but is not limited to this and may include only the first and second mounting portions 71 and 72, or the third mounting portion 73.

In the sixth embodiment, the first to third mounting parts 71 to 73 are fixed to the pad member 14 using a clinching nut 83, but a claw nut may be used instead of the clinching nut 83.

In the sixth embodiment, the periphery of the screw holes 76a, 76b, 77a, and 77b is machined flat to facilitate the insertion of the screws 74 and 75, but it does not have to be machined flat. Also, the screw holes 76a, 76b, 77a, and 77b may be elliptical so that the forward and backward positions can be adjusted steplessly simply by loosening the screws 74 and 75.

The first to third attachment parts 71 to 73 may have a hook part 84 that can engage with the arm member 16 or the pipe member 29. Figures 49 and 50 show an example of the configuration of the hook part 84. Figures 49 and 50 show an example in which the third attachment part 73 is attached to the arm member 16, but the same applies when the first and second attachment parts 71 and 72 are attached to the pipe member 29. As shown in Figures 49(a) and 49(b), the third attachment part 73 may have a hook part 84 at its lower end and be fitted into the arm member 16 from above and fixed. Also, as shown in Figure 50, the third attachment part 73 may have a hook part 84 at its widthwise inner end and be fitted into the arm member 16 from the left and right directions and fixed.

In the sixth embodiment, the pad member 14 is fixed to the arm member 16 and the pipe member 29 via the first to third attachment parts 71 to 73, but this is not limited to the above. For example, the pad member 14 may be directly screwed to the arm member 16 and the pipe member 29 using clinching nuts or claw nuts.

The present invention has been described above based on the embodiments. The embodiments are illustrative, and those skilled in the art will understand that various modifications are possible in the respective components and combinations thereof, and that such modifications are also within the scope of the present invention. Any combination of the above-mentioned embodiments and modifications is also useful as an embodiment of the present invention. A new embodiment resulting from a combination has the effects of both the combined embodiments and modifications. Among the embodiments disclosed in this specification, those in which multiple functions are provided in a distributed manner may have some or all of the multiple functions consolidated, and conversely, those in which multiple functions are provided in a consolidated manner may have some or all of the multiple functions distributed. Regardless of whether the functions are consolidated or distributed, it is sufficient that the configuration is such that the object of the invention can be achieved.

11 Main body frame, 14 Pad member, 14a First pad member, 14b Second pad member, 16 Arm member, 21 Support frame, 22 Front wheel frame, 24 Installation frame, 24a Lower frame, 24b Side frame, 26 Pad holding frame, 29 Pipe member, 40 Positioning member, 60 Storage section, 70 Fixing section, 100 Walking aid vehicle.

Claims (9)

A pair of support frames to which the handles are connected;
A pad member that supports at least a portion of the upper body of a user;
a pair of pad holding frames connected to the pair of support frames and holding the pad member;
The pad member is changeable between a first state in which the pad member defines and supports the position of at least a part of the upper body of the user and a second state in which the pad member defines and supports the position of at least one of the elbow and forearm of the user.
Walking aid. The pad member is
a pair of first pad members supported on the pair of pad supporting frames and configured to support at least one of the user's elbows and forearms;
a second pad member configured to be supported on the pair of pad support frames and extend between the pair of pad support frames;
Equipped with
A rotating shaft portion fixed to the handle;
an arm member having one end fixed to the second pad member and the other end rotatably attached to the rotating shaft portion;
Equipped with
the first state is a state in which the second pad member is held on the first pad member,
The second state is a state in which the second pad member is rotated from the first state to a position lower than the handle with the rotation shaft portion as a fulcrum.
The ambulatory support vehicle according to claim 1. The pad member is configured to be supported on the pair of pad supporting frames across the pair of pad supporting frames,
a positioning member for providing a protrusion on the pad member to determine the position of at least one of the elbow and the forearm of the user on the pad member by being held on the pad member;
The first state is a state in which the protrusion is not provided on the pad member,
The second state is a state in which the protrusion is provided on the pad member.
The ambulatory support vehicle according to claim 1. The pad holding frame has a rotating shaft portion fixed to the handle,
The pad member can be rotated around the rotation shaft portion as a fulcrum to a position where the pad member stands upright,
The positioning member is configured to be fixed to the rear surface of the pad member in a first state.
The ambulatory support vehicle according to claim 3. the pad member is provided with a positioning member configured to be capable of changing its orientation on the pad holding frame, the positioning member being provided with a protrusion on the pad member that determines the position of at least one of the elbow and the forearm of a user on the pad member in a predetermined orientation;
The first state is a state in which the protrusion is not provided,
The second state is a state in which the protrusion is provided.
The ambulatory support vehicle according to claim 1. The pad member is
a pair of first pad members supported on the pair of pad supporting frames and configured to support at least one of the user's elbows and forearms;
a second pad member configured to be supported on the pair of pad support frames and extend between the pair of pad support frames;
Equipped with
The first pad member and the second pad member are configured to be detachable,
a storage section for storing one of the first padding member and the second padding member when the one of the first padding member and the second padding member is removed;
In the first state, the pair of first pad members are stored in the storage section,
In the second state, the second pad member is stored in the storage section.
The ambulatory support vehicle according to claim 1. the storage section stores one of the removed first pad member and the removed second pad member at a position on the front side of the vehicle body;
The ambulatory assistance vehicle according to claim 6. A pair of support frames to which the handles are connected;
a pair of front wheel frames respectively connected to the pair of support frames and respectively supporting a pair of front wheels;
a lower frame that connects the pair of support frames to each other at a position lower than a connection position between the support frame and the front wheel frame;
A walking aid vehicle equipped with A pair of support frames to which the handles are connected;
A pad member that supports at least a portion of the user's forearm;
a pad holding frame connected to the pair of support frames and holding the pad member;
a fixing portion for fixing the pad member on the pad holding frame;
Equipped with
The fixing portion is capable of changing a position at which the pad member is fixed in the front-rear direction.
Walking aid.

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