JP6837889B2 - Brake mechanism for pedestrian vehicles - Google Patents

Description

The present invention relates to a pedestrian vehicle braking mechanism.

Conventionally, as described in Patent Document 1, for example, a walking vehicle that assists walking of an elderly person or the like has been known. The pedestrian vehicle described in Patent Document 1 has a U-shaped handle, grips provided at both ends of the handle, an elbow rest arranged behind the handle, a brake for braking wheels, and one end for a brake. It includes a connected brake wire, a brake bar located in front of the steering wheel, and a brake lever provided below the grip. The other end of the brake wire is connected to the brake lever.

The user can walk while placing the elbow on the elbow rest, and can walk while holding the grip. The brake bar and the brake lever are connected to each other so that the brake can be operated by using either the brake bar or the brake lever. When walking with the elbows on the elbow rests, the brakes can be applied by pulling the brake bar backwards. On the other hand, when walking while gripping the grip, the brake can be applied by pulling the brake lever upward.

Further, the walking vehicle can lock the brake bar and the brake lever by pushing the brake bar forward or pushing down the brake lever. As a result, the brake can be applied even when not walking. That is, the brake can be applied even when parking.

The front portion of the brake lever is provided with an upper rotary fulcrum portion, a lower rotary fulcrum portion, and a wire connecting portion to which the brake wire is connected. The wire connecting portion is provided between the upper rotation fulcrum portion and the lower rotation fulcrum portion. When the brake lever is pulled up, the brake lever rotates with the upper rotation fulcrum as the fulcrum, and the wire connecting portion moves rearward. As a result, the brake wire is pulled backward and the brake is activated. When the brake lever is pushed down, the brake lever rotates with the lower rotation fulcrum as the fulcrum, and the wire connecting portion also moves rearward in this case as well. As a result, the brake wire is pulled backwards and the brake is activated.

The brake bar is connected so as to interlock with the brake lever. A connecting member is provided at the rear of the brake bar. The connecting member has an upper rotating fulcrum portion, a lower rotating fulcrum portion, and a connecting portion with the brake lever. The connecting portion is provided between the upper rotation fulcrum portion and the lower rotation fulcrum portion. When the brake bar is pulled backward, the connecting member rotates with the lower rotating fulcrum as a fulcrum, and the connecting member moves diagonally downward and backward. As a result, the brake lever is pushed diagonally backward and downward, the brake lever rotates upward with the upper rotation fulcrum as a fulcrum, and the brake wire is pulled backward to operate the brake. When the brake bar is pushed forward, the connecting member rotates with the upper rotating fulcrum as a fulcrum, and the connecting member moves diagonally upward and backward. As a result, the brake lever is pushed diagonally upward and backward, the brake lever rotates downward with the lower rotation fulcrum as a fulcrum, and the brake wire is pulled backward to operate the brake.

Japanese Unexamined Patent Publication No. 2016-68884

The walking vehicle is configured such that when the brake is applied, the wire connecting portion of the brake lever moves rearward and pulls the brake wire rearward. Therefore, the case that supports the connecting member of the brake bar and the front portion of the brake lever needs a sufficient space for the wire connecting portion to move back and forth. In order to secure that space, the dimensions of the case in the front-rear direction tended to increase.

The present invention has been made in view of this point, and an object of the present invention is to provide a brake mechanism for a walking vehicle capable of suppressing the front-rear dimension of a case that supports a connecting portion of a brake bar and a brake lever. is there.

The brake mechanism of a walking vehicle according to the present invention includes a brake bar, a brake lever, a connecting shaft, a case, and a brake wire. The brake bar has a bar grip portion and a bar connecting body extending rearward and rearward from the bar grip portion. The brake lever has a lever gripping portion and a lever connecting body located in front of the lever gripping portion and on the side of the bar connecting body. The connecting shaft rotatably connects the bar connecting body and the lever connecting body to each other. The case supports the bar coupling and the lever coupling. The brake wire has a wire connecting portion connected to at least one of the bar connecting body and the lever connecting body. The bar connecting body has a bar rear fulcrum portion located behind the connecting shaft and the wire connecting portion. The lever connecting body has a lever front fulcrum portion located in front of the connecting shaft and the wire connecting portion. The case rotatably supports the bar connecting portion with the bar rear fulcrum portion as a fulcrum so that the wire connecting portion faces upward when an upward or backward force is applied to the bar grip portion. (1) When an upward force is applied to the rear support portion and the lever grip portion, the lever connecting portion is rotatably supported with the lever front fulcrum portion as a fulcrum so that the wire connecting portion faces upward. 1 It has a front support portion and.

According to the brake mechanism, when the brake bar is operated (ie, when an upward or backward force is applied to the bar grip) and when the brake lever is operated (ie, upward to the lever grip). In any case), the wire connection moves upward and the brake wire is pulled upward. Therefore, it is not necessary to provide a space for the wire connecting portion to move back and forth in the case. Therefore, the dimensions of the case in the front-rear direction can be suppressed.

According to a preferred embodiment of the present invention, the bar connecting body has a bar front fulcrum portion located in front of the connecting shaft and the wire connecting portion. The lever connecting body has a lever rear fulcrum portion located behind the connecting shaft and the wire connecting portion. The case rotatably supports the bar connecting portion with the bar front fulcrum as a fulcrum so that the wire connecting portion faces upward when a downward or forward force is applied to the bar gripping portion. 2. When a downward force is applied to the front support portion and the lever grip portion, the lever coupling body is rotatably supported with the lever rear fulcrum portion as a fulcrum so that the wire connecting portion faces upward. It has two rear support portions.

According to the above aspects, when the brake bar is operated during parking (ie, when a downward or forward force is applied to the bar grip) and when the brake lever is operated (ie, to the lever grip). In any case (when a downward force is applied), the wire connection moves upwards and the brake wire is pulled upwards. Therefore, the brake can be applied when parking, and the size of the case in the front-rear direction can be suppressed.

According to a preferred aspect of the present invention, the bar connecting body is formed with an arc-shaped first groove extending downward from the bar rear fulcrum portion. The first rear support portion of the case is composed of a first support shaft inserted into the first groove.

According to the above aspect, when the brake bar is operated during walking, the bar rear fulcrum portion is supported by the first support shaft, and the bar connecting body rotates. When the brake bar is operated during parking, the bar rear fulcrum portion is separated from the first support shaft, but since the first support shaft is inserted into the arc-shaped first groove, the bar connecting body is the bar front fulcrum portion. It rotates smoothly with the fulcrum as a fulcrum. Therefore, the brake bar can be operated smoothly.

According to a preferred aspect of the present invention, a step portion is formed in the first groove.

According to the above aspect, when the brake bar is operated during parking, the position of the brake bar can be locked by locking the first support shaft to the step portion. Therefore, with a simple configuration, the brake can be locked when parking.

According to a preferred aspect of the present invention, the lever connecting body is formed with an arc-shaped second groove extending downward from the lever front fulcrum portion. The first front support portion of the case is composed of a second support shaft inserted into the second groove.

According to the above aspect, when the brake lever is operated during walking, the lever front fulcrum portion is supported by the second support shaft, and the lever connecting body rotates. When the brake lever is operated during parking, the lever front fulcrum portion is separated from the second support shaft, but since the second support shaft is inserted into the arc-shaped second groove, the lever connecting body is the lever rear fulcrum portion. It rotates smoothly with the fulcrum as a fulcrum. Therefore, the brake lever can be operated smoothly.

According to a preferred aspect of the present invention, a step portion is formed in the second groove.

According to the above aspect, when the brake lever is operated during parking, the position of the brake lever can be locked by locking the second support shaft to the step portion. Therefore, with a simple configuration, the brake can be locked when parking.

According to a preferred embodiment of the present invention, the bar connecting body has an inner surface of the bar facing the lever connecting body and an outer surface of the bar located on the side opposite to the inner side surface of the bar. The lever connecting body has an inner surface of the lever facing the bar connecting body and an outer surface of the lever located on the side opposite to the inner side surface of the lever. The case is in contact with the bar connecting body and the lever connecting body so as to sandwich the bar connecting body and the lever connecting body.

According to the above aspect, since the bar connecting body and the lever connecting body are sandwiched by the case, the bar connecting body and the lever connecting body do not fall sideways. Therefore, the brake bar and the brake lever can be operated smoothly, and the brake can be operated smoothly.

According to a preferred embodiment of the present invention, the case has a bar facing wall facing the outer surface of the bar and separated from the outer surface of the bar, and a lever facing the outer surface of the lever and separated from the outer surface of the lever. It has an opposite wall. The case further has a protrusion protruding from the bar facing wall and contacting the bar outer surface and / or a protrusion protruding from the lever facing wall and contacting the lever outer surface.

When the bar connecting body and the lever connecting body are sandwiched between the cases, if the contact area between the bar connecting body and the case is large, or if the contact area between the lever connecting body and the case is large, the sliding resistance becomes large. Therefore, the bar connecting body and the lever connecting body may not rotate smoothly in the case. However, according to the above aspect, the contact area between the bar connecting body and the case can be reduced, or the contact area between the lever connecting body and the case can be reduced. Therefore, the sliding resistance when the bar connecting body and the lever connecting body rotate in the case can be suppressed. Therefore, the bar coupling and the lever coupling rotate smoothly in the case. Therefore, the brake bar and the brake lever can be operated smoothly, and the brake can be operated smoothly.

According to a preferred embodiment of the present invention, the bar connector has a bar sliding portion that projects from the outer surface of the bar and contacts the case, and / or the lever connector projects from the outer surface of the lever. Moreover, it has a lever sliding portion that comes into contact with the case.

According to the above aspect, the contact area between the bar connecting body and the case can be reduced, or the contact area between the lever connecting body and the case can be reduced. Therefore, the sliding resistance when the bar connecting body and the lever connecting body rotate in the case can be suppressed. The brake bar and the brake lever can be operated smoothly, and the brake can be operated smoothly.

According to another preferred embodiment of the present invention, the wire connecting portion overlaps the bar sliding portion and / or the lever sliding portion when viewed from the side.

When the bar connector rotates, the bar sliding portion slides with respect to the case. Therefore, the bar sliding portion does not tilt sideways and moves stably. Similarly, when the lever connector rotates, the lever sliding portion slides with respect to the case. Therefore, the lever sliding portion does not tilt sideways and moves stably. Therefore, according to the above aspect, the wire connecting portion moves stably. Therefore, the brake can be operated smoothly.

According to a preferred embodiment of the present invention, the bar connector has a sliding portion that projects from the inner surface of the bar and contacts the inner surface of the lever, and / or the lever connector is from the inner surface of the lever. It has a sliding portion that protrudes and comes into contact with the inner surface of the bar.

According to the above aspect, the contact area between the bar connecting body and the lever connecting body can be reduced. Therefore, the sliding resistance when the bar connecting body and the lever connecting body rotate can be suppressed. The brake bar and the brake lever can be operated smoothly, and the brake can be operated smoothly.

According to a preferred embodiment of the present invention, the wire connecting portion is arranged between the bar outer surface of the bar connecting body and the lever outer surface of the lever connecting body.

According to the above aspect, the force applied to the brake wire when the brake bar or the brake lever is operated is unlikely to be biased to the left or right. Therefore, the brake wire is pulled upward satisfactorily, and the brake can be operated smoothly.

According to a preferred aspect of the present invention, the center of the wire connecting portion and the center of the connecting shaft coincide with each other.

According to the above aspect, the wire connecting portion can be suitably moved upward both when the brake bar is operated and when the brake lever is operated. The brake wire can be preferably pulled, and the brake can be operated smoothly.

According to a preferred embodiment of the present invention, the connecting shaft comprises a cylindrical sleeve rotatably fitted into the bar connecting body and the lever connecting body. The wire connecting portion is composed of a member fitted in the sleeve.

According to the above aspect, the wire connecting portion can be suitably moved upward both when the brake bar is operated and when the brake lever is operated. Further, the bar connecting body and the lever connecting body can be satisfactorily connected, and the brake bar and the brake lever can be operated smoothly.

The walking vehicle according to the present invention includes the brake mechanism, and the brake wire extends downward from the wire connecting portion.

According to the walking vehicle, it is possible to prevent the brake wire from jumping forward from the case.

According to a preferred embodiment of the present invention, a wheel, a base frame supporting the wheel, a vertical frame attached to the base frame and extending upward from the base frame, and at least provided in front of the vertical frame. A handle that is partially located above or behind the bar grip of the brake bar, and a grip that is provided behind the vertical frame and at least partly above the lever grip of the brake lever. It has. When viewed from the side, the portion of the brake wire above the base frame overlaps with the vertical frame.

According to the above aspect, the upper portion of the brake wire does not protrude forward or backward from the vertical frame. Therefore, the brake wire is less likely to get in the way.

According to a preferred embodiment of the present invention, a wheel, a base frame supporting the wheel, a vertical frame attached to the base frame and extending upward from the base frame, and at least provided in front of the vertical frame. A handle that is partially located above or behind the bar grip of the brake bar, and a grip that is provided behind the vertical frame and at least partly above the lever grip of the brake lever. It has. The portion of the brake wire above the base frame is arranged closer to the center of the vehicle than the vertical frame.

According to the above aspect, the upper portion of the brake wire does not protrude outward in the vehicle width direction from the vertical frame. Therefore, the brake wire is less likely to get in the way.

According to the present invention, it is possible to provide a brake mechanism for a walking vehicle capable of suppressing the dimension in the front-rear direction of a case that supports a connecting portion of a brake bar and a brake lever.

It is a perspective view of the walking vehicle provided with the brake mechanism which concerns on one Embodiment of this invention. It is a top view of the pedestrian vehicle. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. (A) is a plan view of the bar connecting body, and (b) is a side view of the bar connecting body. (A) is a plan view of the lever connecting body, and (b) is a side view of the lever connecting body. It is a top view of the bar connection body, the lever connection body, and the case on the right side. It is the figure which looked at the bar connection body, the lever connection body, and the case on the right side from the rear. It is the figure which looked at the bar connection body, the lever connection body, and the case on the right side from the right side. FIG. 8 is a sectional view taken along line IX-IX of FIG. FIG. 8 is a cross-sectional view taken along line XX of FIG. (A) is a perspective view of the tip of the brake wire, and (b) is a perspective view of the tip of the wire with the sleeve attached. FIG. 7 is a cross-sectional view taken along the line XII-XII of FIG. 7, where (a) represents a state in which the brake bar is not operated, (b) represents a state in which the brake bar is gripped, and (c) represents a state in which the brake bar is lowered. There is. FIG. 7 is a sectional view taken along line VIII-VIII of FIG. 7. FIG. 7A represents a state in which the brake lever is not operated, FIG. 7B represents a state in which the brake lever is gripped, and FIG. 7C represents a state in which the brake lever is lowered. There is.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the walking vehicle 1. FIG. 2 is a plan view of the walking vehicle 1, and FIG. 3 is a sectional view taken along line III-III of FIG. In the following explanation, front, rear, left, right, top, and bottom refer to front, back, left, right, top, and bottom as seen from a user (not shown) walking using the pedestrian vehicle 1. It shall mean each. It is assumed that the symbols F, Rr, L, R, U, and D in the figure represent front, back, left, right, top, and bottom, respectively.

As shown in FIG. 1, the walking vehicle 1 includes left and right front wheels 2 and left and right rear wheels 4, a base frame 6 that supports these front wheels 2 and rear wheels 4, and left and right vertical frames attached to the base frame 6. It includes a handle 10, a handle 10 supported by a vertical frame 8, and left and right grips 12 (see FIG. 3). Further, the walking vehicle 1 is provided with a braking mechanism 3 for braking the rear wheels 4. The pedestrian vehicle 1 includes a brake 5 for braking the rear wheels 4, a brake wire 7 connected to the brake 5, a brake bar 14 for operating the brake wire 7, and left and right brake levers 16 for operating the brake wire 7. It has.

The base frame 6 has left and right rear frames 18 and left and right front frames 20. The lower part of the rear frame 18 is curved toward the rear. The rear wheels 4 are rotatably supported by the lower ends of the left and right rear frames 18, respectively. A bracket 22 is fixed to the upper end of the rear frame 18. The upper end portion of the front frame 20 is rotatably supported by the bracket 22. The front frame 20 extends diagonally forward and downward from the bracket 22 and then extends downward. The front wheel 2 is rotatably supported by the lower end portion of the front frame 20. Horizontal bars 21 extending to the left and right are connected to the left front frame 20 and the right front frame 20. Horizontal bars 25 extending to the left and right are connected to the left rear frame 18 and the right rear frame 18.

As shown in FIG. 3, horizontal bars 27 are bridged between the left and right brackets 22. A bracket 29A is connected to the rear frame 18. Horizontal bars 29 are bridged to the left and right brackets 29A. A storage car 32 is supported in these horizontal bars 27 and 29. The storage car 32 is arranged in front of the rear frame 18. A tray 34 is supported above the storage car 32.

The front frame 20 and the rear frame 18 are connected by a link mechanism 24. The link mechanism 24 has a bar 24A, a bar 24B, and a shaft 24C that rotatably connects the bar 24A and the bar 24B. The pedestrian vehicle 1 can be folded when not in use. At the time of folding, the front frame 20 rotates rearward about the upper end portion thereof, and the link mechanism 24 is folded so that the shaft 24C moves upward. As a result, the front wheels 2 approach the rear wheels 4, and the front and rear dimensions of the walking vehicle 1 become smaller.

In the present embodiment, the walking vehicle 1 has a symmetrical structure. Therefore, in the following description, the structure on the right side of the walking vehicle 1 will be mainly described, and the description of the structure on the left side will be omitted.

As shown in FIG. 3, the vertical frame 8 extends upward from the base frame 6. The shape of the vertical frame 8 is not particularly limited, but in the present embodiment, it is formed in the shape of a hollow pipe extending straight. The rear frame 18 is formed in the shape of a hollow pipe, and the vertical frame 8 is slidably inserted into the rear frame 18. The vertical frame 8 is fixed to the bracket 22 by screws 9 (see FIG. 1). A plurality of screw holes 8a arranged vertically are formed in the vertical frame 8. By selecting the screw hole 8a into which the screw 9 is fitted, the protrusion length from the rear frame 18 of the vertical frame 8 can be adjusted. Thereby, the heights of the handle 10 and the grip 12 and the like can be adjusted.

The handle 10 is supported by the left and right vertical frames 8. As shown in FIG. 2, the handle 10 is formed in a U shape that opens rearward in a plan view. As shown in FIG. 3, the handle 10 has left and right horizontal portions 10a located above the vertical frame 8, left and right inclined portions 10b inclined forward diagonally upward in front of the horizontal portion 10a, and left and right inclined portions. It includes a grip portion 10c bridged over 10b.

As shown in FIG. 1, elbow rests 23 are provided on the left and right vertical frames 8. The elbow rest 23 is arranged behind the handle 10. The user can hold the handle 10 while placing the elbow on the elbow rest 23.

Grips 12 are provided at the left and right rear ends of the handle 10. As shown in FIG. 3, the grip 12 is arranged behind the horizontal portion 10a of the handle 10. Further, the grip 12 is arranged behind the vertical frame 8. In this embodiment, the grips 12 are arranged horizontally. However, the grip 12 may be tilted from the horizontal direction.

The brake bar 14 is arranged below the steering wheel 10. The brake bar 14 has a bar grip portion 13 and a bar connecting body 15 extending rearward behind the bar grip portion 13. The bar gripping portion 13 and the bar connecting body 15 may be an integral body, but in the present embodiment, they are separate bodies. The bar grip portion 13 is assembled to the bar connecting body 15.

The bar grip portion 13 is a portion that is gripped by the user. As shown in FIG. 1, the bar grip portion 13 has a shape similar to that of the handle 10. That is, the bar grip portion 13 is formed in a U shape that opens rearward in a plan view. Further, the bar grip portion 13 is inclined forward obliquely upward in a side view. The front end of the bar grip portion 13 is located in front of the front end of the handle 10. A part of the bar grip portion 13 is arranged in front of and below the handle 10.

FIG. 4A is a plan view of the bar connecting body 15 on the right side, and FIG. 4B is a side view of the bar connecting body 15 on the right side. The bar connecting body 15 is formed in a plate shape, and has a bar inner side surface 15A and a bar outer surface 15B located on the opposite side of the bar inner side surface 15A. As shown in FIG. 4A, the bar connecting body 15 has a protruding portion 15r protruding from the inner side surface 15A of the bar. As shown in FIG. 4B, in the present embodiment, the protruding portion 15r is formed by ribs extending in the vertical direction. However, the shape of the protruding portion 15r is not limited at all. The protruding portion 15r may be formed in a hemispherical shape, for example. The number of protruding portions 15r is not limited, and may be one or two or more.

As shown in FIG. 4B, a hole 15a is formed in the bar connecting body 15. Further, a first groove 15d is formed behind the hole 15a in the bar connecting body 15. As will be described later, the bar connecting body 15 can rotate with a predetermined fulcrum as a fulcrum. A recess is formed in front of the hole 15a in the bar connecting body 15, and this recess serves as a bar front fulcrum portion 15c. The portion of the bar connecting body 15 above the first groove 15d is a bar rear fulcrum portion 15b. The first groove 15d extends downward from the bar rear fulcrum portion 15b and is formed in an arc shape. A step portion 15e is formed in the middle portion of the first groove 15d.

As shown in FIG. 3, the brake lever 16 is arranged below the grip 12. FIG. 5A is a plan view of the brake lever 16 on the right side, and FIG. 5B is a side view of the brake lever 16 on the right side. The brake lever 16 has a lever grip portion 17 and a lever connecting body 19 located in front of the lever grip portion 17. As shown in FIG. 5A, the brake lever 16 is formed in a bent plate shape. In the present embodiment, the lever grip portion 17 has a hole whose circumference is closed. However, the lever grip portion 17 may be any as long as it can be gripped by the user, and its specific shape is not limited at all. For example, the lever grip portion 17 may be formed in a rod shape.

As shown in FIG. 5A, the lever connecting body 19 has a lever inner side surface 19A and a lever outer surface 19B located on the opposite side of the lever inner side surface 19A. The lever connecting body 19 has a protruding portion 19r protruding from the inner side surface 19A of the lever. As shown in FIG. 5B, in the present embodiment, the protruding portion 19r is formed by ribs extending in the vertical direction. However, the shape of the protruding portion 19r is not limited at all. The protruding portion 19r may be formed in a hemispherical shape, for example. The number of protruding portions 19r is not limited, and may be one or two or more.

As shown in FIG. 5B, a hole 19a is formed in the lever connecting body 19. Further, a second groove 19d is formed in front of the hole 19a in the lever connecting body 19. As will be described later, the lever connecting body 19 can rotate with a predetermined fulcrum as a fulcrum. A recess is formed behind the hole 19a in the lever connecting body 19, and this recess serves as a lever rear fulcrum portion 19c. The portion above the second groove 19d in the lever connecting body 19 is the lever front fulcrum portion 19b. The second groove 19d extends downward from the lever front fulcrum portion 19b and is formed in an arc shape. A step portion 19e is formed in the middle portion of the second groove 19d.

As shown in FIG. 3, a case 26 is arranged at the upper end of the vertical frame 8. Inside the case 26, at least a part of the bar connecting body 15 and at least a part of the lever connecting body 19 are housed. The bar connecting body 15 and the lever connecting body 19 are supported by the case 26. The bar connecting body 15 and the lever connecting body 19 are connected to each other inside the case 26. Further, the bar connecting body 15 and the lever connecting body 19 are connected to the brake wire 7 inside the case 26.

As shown in FIG. 3, the portion of the brake wire 7 above the base frame 6 when viewed from the side overlaps with the vertical frame 8. Further, the portion of the brake wire 7 above the base frame 6 is arranged closer to the center of the vehicle than the vertical frame 8. That is, the portion of the left brake wire 7 above the base frame 6 is arranged on the right side of the left vertical frame 8. The portion of the brake wire 7 on the right side above the base frame 6 is arranged on the left side of the vertical frame 8 on the right side.

6, 7, and 8 are a plan view and a rear view of the brake lever 16 on the right side, the bar connecting body 15 on the right side of the brake bar 14, and the case 26 on the right side, respectively (viewed from the VII direction in FIG. 6). , Right side view (viewed from the VIII direction of FIG. 6). 9 is a sectional view taken along line IX-IX of FIG. 8, and FIG. 10 is a sectional view taken along line XX-X of FIG. The case 26 is assembled by fixing the first case component 26A and the second case component 26B with screws 26C (see FIG. 8).

As shown in FIG. 9, the bar connecting body 15 and the lever connecting body 19 are arranged so that the inner side surface 15A of the bar and the inner side surface 19A of the lever face each other. As shown in FIG. 10, the protruding portion 15r of the bar connecting body 15 is in contact with the inner side surface 19A of the lever. The protruding portion 19r of the lever connecting body 19 is in contact with the inner side surface 15A of the bar.

The first case component 26A includes a bar facing wall 26V facing the bar outer surface 15B, and a protrusion 26a protruding from the bar facing wall 26V. The bar facing wall 26V is separated from the bar outer surface 15B. A gap is provided between the bar facing wall 26V and the bar outer surface 15B. The protrusion 26a is in contact with the outer surface 15B of the bar. The second case component 26B includes a lever facing wall 26W facing the lever outer surface 19B and a protrusion 26b protruding from the lever facing wall 26W. The lever facing wall 26W is separated from the lever outer surface 19B. A gap is provided between the lever facing wall 26W and the lever outer surface 19B. The protrusion 26b is in contact with the lever outer surface 19B.

As shown in FIG. 11A, the brake wire 7 has an outer wire 7b and an inner wire 7a arranged inside the outer wire 7b. A cylindrical member 7c conventionally called a drum is provided at one end of the inner wire 7a. As shown in FIG. 11B, the sleeve 30 is attached to the cylindrical member 7c. The cylindrical member 7c is arranged inside the sleeve 30. The sleeve 30 is formed with slits 30s extending in the axial direction. The inner wire 7a extends downward from the cylindrical member 7c through the slit 30s. As shown in FIG. 9, the brake wire 7 extends downward from the case 26.

As shown in FIG. 9, the sleeve 30 is fitted into the hole 15a of the bar connecting body 15 and the hole 19a of the lever connecting body 19. The bar connecting body 15 and the lever connecting body 19 are rotatably supported by the sleeve 30. In the present embodiment, the bar connecting body 15 and the lever connecting body 19 are connected by a sleeve 30. The sleeve 30 constitutes a connecting shaft that connects the bar connecting body 15 and the lever connecting body 19. The bar connecting body 15 and the brake wire 7 are connected via a sleeve 30. Similarly, the lever connecting body 19 and the brake wire 7 are connected via a sleeve 30. However, the sleeve 30 is not always necessary and can be omitted. In that case, the bar connecting body 15 and the lever connecting body 19 are connected by a cylindrical member 7c, and the cylindrical member 7c constitutes a connecting shaft.

As shown in FIG. 9, the bar sliding member 15D is fitted in the hole 15a of the bar connecting body 15. The bar sliding member 15D is arranged between the sleeve 30 and the bar facing wall 26V. The bar sliding member 15D protrudes from the bar outer surface 15B and is in contact with the bar facing wall 26V. The bar sliding member 15D has a small diameter portion inserted into the hole 15a and a large diameter portion having a diameter larger than the small diameter portion. Here, the tip surface of the large diameter portion is in contact with the bar facing wall 26V. However, the above-mentioned shape of the bar sliding member 15D is only an example, and is not limited in any way.

The lever sliding member 19D is fitted in the hole 19a of the lever connecting body 19. The lever sliding member 19D is arranged between the sleeve 30 and the lever facing wall 26W. The lever sliding member 19D protrudes from the lever outer surface 19B and is in contact with the lever facing wall 26W. The lever sliding member 19D has a small diameter portion inserted into the hole 19a and a large diameter portion having a diameter larger than the small diameter portion. Here, the tip surface of the large diameter portion is in contact with the lever facing wall 26W. However, the above-mentioned shape of the lever sliding member 19D is only an example, and is not limited in any way.

FIG. 12A is a sectional view taken along line XII-XII of FIG. The bar front fulcrum portion 15c of the bar connecting body 15 is located in front of the sleeve 30, and the bar rear fulcrum portion 15b is located behind the sleeve 30. The first case component 26A has a support shaft 26D for supporting the bar rear fulcrum portion 15b and a support shaft 26E for supporting the bar front fulcrum portion 15c. The support shaft 26D is inserted into the first groove 15d.

FIG. 13 (a) is a cross-sectional view taken along the line XIII-XIII of FIG. The lever front fulcrum portion 19b of the lever connecting body 19 is located in front of the sleeve 30, and the lever rear fulcrum portion 19c is located behind the sleeve 30. The second case component 26B has a support shaft 26F for supporting the lever front fulcrum portion 19b and a support shaft 26G for supporting the lever rear fulcrum portion 19c. The support shaft 26F is inserted into the second groove 19d.

Next, the braking operation in the walking vehicle 1 will be described. In the pedestrian vehicle 1, the brake wire 7 extends downward from the cylindrical member 7c. When the cylindrical member 7c moves upward by operating the brake bar 14 or the brake lever 16, the inner wire 7a is pulled and the brake 5 is activated.

As shown in FIG. 3, the brake bar 14 is arranged below the steering wheel 10. When the user grips the bar grip portion 13 of the brake bar 14 together with the handle 10, the bar grip portion 13 moves upward as shown in FIG. 12 (c). Then, the bar connecting body 15 rotates with the bar rear fulcrum portion 15b as a fulcrum. As a result, the cylindrical member 7c moves upward, and the inner wire 7a is pulled. As a result, the brake 5 is activated and the rear wheel 4 is braked. When the user releases the bar grip portion 13, the bar connecting body 15 is pulled downward by the inner wire 7a. As a result, the cylindrical member 7c moves downward and the brake 5 is released.

When the user grips the brake lever 16 together with the grip 12, the lever grip portion 17 of the brake lever 16 moves upward as shown in FIG. 13 (c). Then, the lever connecting body 19 rotates with the lever front fulcrum portion 19b as a fulcrum. As a result, the cylindrical member 7c moves upward, and the inner wire 7a is pulled. As a result, the brake 5 is activated and the rear wheel 4 is braked. When the user releases the brake lever 16, the lever connecting body 19 is pulled downward by the inner wire 7a. As a result, the cylindrical member 7c moves downward and the brake 5 is released.

In the pedestrian vehicle 1, the brake can be applied not only when walking but also when parking. As shown in FIG. 12B, when the user lowers the bar grip portion 13 of the brake bar 14, the bar connecting body 15 rotates with the bar front fulcrum portion 15c as a fulcrum. Also in this case, the cylindrical member 7c moves upward and the inner wire 7a is pulled. As a result, the brake 5 operates. When the bar connecting body 15 rotates with the bar front fulcrum portion 15c as a fulcrum, the rear portion of the bar connecting body 15 moves upward. As a result, the support shaft 26D moves relatively in the first groove 15d. A step portion 15e is formed in the first groove 15d, and once the support shaft 26D gets over the step portion 15e, the support shaft 26D reverses the step portion 15e unless an upward force is applied to the bar grip portion 13. I can't get over it. Therefore, the bar connecting body 15 keeps the rotated state with the bar front fulcrum portion 15c as the fulcrum, and even if the user releases the brake bar 14, the brake 5 is locked in the operating state. Therefore, the brake can be applied when parking.

Further, as shown in FIG. 13B, when the user lowers the lever grip portion 17, the lever connecting body 19 rotates with the lever rear fulcrum portion 19c as a fulcrum. As a result, the cylindrical member 7c moves upward, and the inner wire 7a is pulled. As a result, the brake 5 operates. When the lever connecting body 19 rotates with the lever rear fulcrum portion 19c as a fulcrum, the front portion of the lever connecting body 19 moves upward. As a result, the support shaft 26F relatively moves in the second groove 19d. A step portion 19e is formed in the second groove 19d, and once the support shaft 26F gets over the step portion 19e, the support shaft 26F reverses the step portion 19e unless an upward force is applied to the lever grip portion 17. I can't get over it. Therefore, the lever connecting body 19 keeps rotating with the lever rear fulcrum portion 19c as a fulcrum, and even if the user releases the brake lever 16, the brake 5 is locked in the operating state. Therefore, even in this case, the brake can be applied when parking.

Since the bar connecting body 15 and the lever connecting body 19 are connected to each other, when either the bar connecting body 15 or the lever connecting body 19 rotates, the other also rotates or moves.

As described above, according to the brake mechanism 3 according to the present embodiment, the cylindrical member 7c, which is the wire connecting portion, moves upward regardless of which of the brake bar 14 and the brake lever 16 is operated. , The brake wire 7 is pulled upward. Therefore, it is not necessary to provide a space for the cylindrical member 7c to move back and forth with respect to the case 26 (see FIGS. 12 and 13). Therefore, the dimensions of the case 26 in the front-rear direction can be suppressed.

Further, according to the brake mechanism 3, the cylindrical member 7c moves upward and the brake wire 7 is pulled upward regardless of which of the brake bar 14 and the brake lever 16 is operated during parking. Therefore, the brake 5 can be applied when parking, and the size of the case 26 in the front-rear direction can be suppressed.

Further, according to the brake mechanism 3, when the brake bar 14 is operated during walking, the bar rear fulcrum portion 15b is supported by the support shaft 26D, and the bar connecting body 15 rotates. When the brake bar 14 is operated during parking, the bar rear fulcrum portion 15b is separated from the support shaft 26D, but since the support shaft 26D is inserted into the first groove 15d, the support shaft 26D is smoothly inserted along the first groove 15d. Move relative to each other. Therefore, the bar connecting body 15 smoothly rotates with the bar front fulcrum portion 15c as a fulcrum. Therefore, according to the brake mechanism 3, the brake bar 14 can be operated smoothly.

Further, according to the brake mechanism 3, when the brake bar 14 is operated during parking, the support shaft 26D is locked to the step portion 15e of the first groove 15d to lock the position of the brake bar 14. be able to. Therefore, with a simple configuration, the brake 5 can be locked when parking.

Further, according to the brake mechanism 3, when the brake lever 16 is operated during walking, the lever front fulcrum portion 19b is supported by the support shaft 26F, and the lever connecting body 19 rotates. When the brake lever 16 is operated during parking, the lever front fulcrum portion 19b is separated from the support shaft 26F, but since the support shaft 26F is inserted into the second groove 19d, the support shaft 26F is smoothly inserted along the second groove 19d. Move relative to each other. Therefore, the lever connecting body 19 rotates smoothly with the lever rear fulcrum portion 19c as a fulcrum. Therefore, according to the brake mechanism 3, the brake lever 16 can be operated smoothly.

Further, according to the brake mechanism 3, when the brake lever 16 is operated during parking, the support shaft 26F is locked to the step portion 19e of the second groove 19d to lock the position of the brake lever 16. be able to. Therefore, with a simple configuration, the brake 5 can be locked when parking.

Further, according to the brake mechanism 3, since the bar connecting body 15 and the lever connecting body 19 are sandwiched by the case 26, the bar connecting body 15 and the lever connecting body 19 do not fall sideways. Therefore, the brake bar 14 and the brake lever 16 can be operated smoothly, and the brake 5 can be operated smoothly.

By the way, when the bar connecting body 15 and the lever connecting body 19 are sandwiched between the cases 26, if the contact area between the bar connecting body 15 and the case 26 is large, or the contact area between the lever connecting body 19 and the case 26 becomes large. If it is large, the sliding resistance becomes large, and the bar connecting body 15 and the lever connecting body 19 may not rotate smoothly in the case 26. However, according to the brake mechanism 3 according to the present embodiment, the case 26 has a protrusion 26a that contacts the bar outer surface 15B of the bar connecting body 15 and a protrusion 26b that contacts the lever outer surface 19B of the lever connecting body 19. Have. Therefore, the contact area between the bar connecting body 15 and the case 26 can be reduced, and the contact area between the lever connecting body 19 and the case 26 can be reduced. Therefore, it is possible to suppress the sliding resistance when the bar connecting body 15 and the lever connecting body 19 rotate in the case 26. Therefore, the bar connecting body 15 and the lever connecting body 19 rotate smoothly in the case 26. Therefore, the brake bar 14 and the brake lever 16 can be operated smoothly, and the brake 5 can be operated smoothly.

Further, according to the brake mechanism 3 according to the present embodiment, the bar connecting body 15 has a bar sliding member 15D, and the lever connecting body 19 has a lever sliding member 19D (see FIG. 9). This also makes it possible to reduce the contact area between the bar connecting body 15 and the case 26. Further, the contact area between the lever connecting body 19 and the case 26 can be reduced. Therefore, it is possible to suppress the sliding resistance when the bar connecting body 15 and the lever connecting body 19 rotate in the case 26. The brake bar 14 and the brake lever 16 can be operated smoothly, and the brake 5 can be operated smoothly.

Further, according to the brake mechanism 3, the cylindrical member 7c of the brake wire 7 is arranged in the sleeve 30, and the sleeve 30 is fitted into the hole 15a of the bar connecting body 15 and the hole 19a of the lever connecting body 19. The bar sliding member 15D is fitted into the hole 15a of the bar connecting body 15, and the lever sliding member 19D is fitted into the hole 19a of the lever connecting body 19. Therefore, when viewed from the side, the cylindrical member 7c overlaps the bar sliding member 15D and the lever sliding member 19D. When the bar connecting body 15 rotates, the bar sliding member 15D slides with respect to the case 26. Therefore, the bar sliding member 15D does not tilt sideways and moves stably. Similarly, when the lever connecting body 19 rotates, the lever sliding member 19D slides with respect to the case 26. Therefore, the lever sliding member 19D does not tilt sideways and moves stably. Therefore, according to the brake mechanism 3 according to the present embodiment, when the brake bar 14 and the brake lever 16 are operated, the cylindrical member 7c of the brake wire 7 moves stably. Therefore, the brake 5 can be operated smoothly.

Further, according to the brake mechanism 3, the bar connecting body 15 has a protruding portion 15r protruding from the inner side surface 15A of the bar, and the lever connecting body 19 has a protruding portion 19r protruding from the inner side surface 19A of the lever. Therefore, the contact area between the bar connecting body 15 and the lever connecting body 19 can be reduced. Therefore, it is possible to suppress the sliding resistance when the bar connecting body 15 and the lever connecting body 19 rotate. The brake bar 14 and the brake lever 16 can be operated smoothly, and the brake 5 can be operated smoothly.

Further, according to the brake mechanism 3, as shown in FIG. 9, the cylindrical member 7c of the brake wire 7 is arranged between the bar outer surface 15B and the lever outer surface 19B. Therefore, the force applied to the brake wire 7 when the brake bar 14 or the brake lever 16 is operated is unlikely to be biased to the left or right. Therefore, when the brake bar 14 or the brake lever 16 is operated, the brake wire 7 is pulled satisfactorily upward, and the brake 5 can be smoothly operated. It is more preferable that the cylindrical member 7c is arranged between the bar outer surface 15B and the lever outer surface 19B.

In the present embodiment, the cylindrical member 7c of the brake wire 7 constitutes a wire connecting portion of the brake wire 7 connected to the bar connecting body 15 and the lever connecting body 19. The sleeve 30 constitutes a connecting shaft that connects the bar connecting body 15 and the lever connecting body 19. In this embodiment, the center of the cylindrical member 7c and the center of the sleeve 30 coincide with each other. That is, the center of the wire connecting portion and the center of the connecting shaft coincide with each other. Therefore, the wire connecting portion (cylindrical member 7c) can be suitably moved upward both when the brake bar 14 is operated and when the brake lever is operated. Therefore, the brake wire 7 can be preferably pulled, and the brake 5 can be operated smoothly.

Further, according to the brake mechanism 3 according to the present embodiment, since the connecting shaft is made of the sleeve 30 and the wire connecting portion is made of the cylindrical member 7c, when the brake bar 14 is operated and the brake lever 16 is operated. The wire connecting portion can be suitably moved upward in any of the operations. Further, the bar connecting body 15 and the lever connecting body 19 can be satisfactorily connected, and the brake bar 14 and the brake lever 16 can be smoothly operated.

According to the walking vehicle 1 according to the present embodiment, the brake wire 7 extends downward from the cylindrical member 7c. The brake wire 7 extends downward from the case 26. According to the pedestrian vehicle 1, it is possible to prevent the brake wire 7 from jumping forward from the case 26. According to the present embodiment, it is possible to realize a walking vehicle 1 that is easy to use.

Further, according to the walking vehicle 1, the portion of the brake wire 7 above the base frame 6 (hereinafter, referred to as the upper portion of the brake wire 7) does not protrude forward or backward from the vertical frame 8. Therefore, the brake wire 7 is less likely to get in the way.

Further, according to the walking vehicle 1, the upper portion of the brake wire 7 is arranged closer to the center of the vehicle than the vertical frame 8. The upper portion of the brake wire 7 does not protrude outward in the vehicle width direction from the vertical frame 8. Therefore, the brake wire 7 is less likely to get in the way.

Although one embodiment of the brake mechanism and the walking vehicle according to the present invention has been described above, it goes without saying that the present invention is not limited to the above-described embodiment, and the present invention is to be implemented in various other forms. Can be done. Next, examples of other embodiments will be briefly described.

The walking vehicle 1 according to the embodiment has a symmetrical shape with the center in the left-right direction as a boundary, but the walking vehicle 1 is not limited thereto. The walking vehicle 1 may have a left-right asymmetrical shape.

The brake mechanism 3 according to the embodiment is configured to enable braking during parking. However, parking brakes are not always necessary. For example, the bar connecting body 15 may not have the bar front support portion 15c, and the lever connecting body 19 may not have the bar rear supporting portion 19b.

In the embodiment, the brake bar 14 is located below or in front of the steering wheel 10. In the above embodiment, the brake 5 is operated by moving the bar grip portion 13 of the brake bar 14 upward or backward when walking, and the brake 5 is operated by moving the bar grip portion 13 downward or forward when parking. .. However, the relative position of the brake bar 14 with respect to the steering wheel 10 is not particularly limited. For example, the brake bar 14 can be placed above or behind the steering wheel 10. In this case, the brake 5 may be operated by moving the bar grip portion 13 downward or forward when walking, and the brake 5 may be activated by moving the bar grip portion 13 upward or backward when parking. The bar connector 15 may have a shape that is upside down from the above embodiment.

Further, in the above embodiment, the brake lever 16 is arranged below the grip 12. However, the brake lever 16 may be arranged on the side of the grip 12 or may be arranged above the grip 12. For example, the brake 5 may be operated by moving the lever grip portion 17 downward during walking, and the brake 5 may be activated by moving the lever grip portion 17 upward during parking. The lever connecting body 19 may have a shape that is upside down from the above embodiment.

The first groove 15d of the bar connector 15 is not always necessary. The second groove 19d of the lever connecting body 19 is not always necessary. The step portions 15e and 19e may be convex step portions or concave step portions. Further, the portion of the bar connecting body 15 that engages with the support shaft 26D when parked is not limited to the step portion 15e. The portion of the lever connecting body 19 that engages with the support shaft 26F when parked is not limited to the step portion 19e. Instead of the step portions 15e and 19e, any engaging structure that is not disengaged unless an external force is applied can be adopted.

In the above embodiment, the bar sliding member 15D and the other parts of the bar connecting body 15 are separate bodies, but they may be an integral body. Similarly, in the lever connecting body 19, the lever sliding member 19D and the other parts are separate bodies, but they may be an integral body. Further, the bar sliding member 15D and the lever sliding member 19D are not always necessary and can be omitted. The protruding portion 15r of the bar connecting body 15 and the protruding portion 19r of the lever connecting body 19 are not always necessary and can be omitted. The protrusions 26a and 26b of the case 26 can also be omitted.

In the above embodiment, the cylindrical member 7c is provided at the tip of the inner wire 7a of the brake wire 7, but a cylindrical member can be used instead of the cylindrical member 7c. Further, instead of the cylindrical member 7c, a member having another shape that can be supported by the sleeve 30, such as a spherical member or a rectangular parallelepiped member, may be used.

In the above embodiment, both the bar connecting body 15 and the lever connecting body 19 are connected to the brake wire 7 (specifically, the cylindrical member 7c), but only one of the bar connecting body 15 and the lever connecting body 19 brakes. It may be connected to the wire 7. Since the bar connecting body 15 and the lever connecting body 19 are connected to each other, even if the bar connecting body 15 and the lever connecting body 19 that are not connected to the brake wire 7 are rotated, they are connected to the brake wire 7. The person who is on the side can be moved, and the brake wire 7 can be pulled.

In the above embodiment, the center of the wire connecting portion (cylindrical member 7c) and the center of the connecting shaft (sleeve 30) coincide with each other, but the wire connecting portion and the connecting shaft may be provided at different positions. ..

In the above embodiment, the wire connecting portion (cylindrical member 7c) is arranged between the bar outer surface 15B of the bar connecting body 15 and the lever outer surface 19B of the lever connecting body 19 (see FIG. 9), but is limited thereto. Not done.

The walking vehicle 1 according to the embodiment is configured to be foldable, but the walking vehicle 1 may not be foldable.

1 ... Walking vehicle, 2 ... Front wheel, 3 ... Brake mechanism, 4 ... Rear wheel (wheel), 5 ... Brake, 6 ... Base frame, 7 ... Brake wire, 7c ... Cylindrical member (wire connecting part), 8 ... Vertical frame 10, 10 ... handle, 12 ... grip, 13 ... bar grip, 14 ... brake bar, 15 ... bar connector, 15A ... bar inner surface, 15B ... bar outer surface, 15D ... bar sliding member (bar sliding part) , 15b ... Bar rear fulcrum, 15c ... Bar front fulcrum, 15d ... First groove, 15e ... Step, 15r ... Protruding (sliding), 16 ... Brake lever, 17 ... Lever grip, 19 ... Lever connector, 19A ... Bar inner surface, 19B ... Bar outer surface, 19D ... Lever sliding member (lever sliding part), 19b ... Lever front fulcrum, 19c ... Lever rear fulcrum, 19d ... Second groove, 19e ... Stepped part, 19r ... Protruding part (sliding part), 26 ... Case, 26D ... Support shaft (first rear support part, first support shaft), 26E ... Support shaft (second front support part), 26F ... Support shaft (first front support part, second support shaft), 26G ... support shaft (second rear support part), 26V ... bar facing wall, 26W ... lever facing wall, 26a ... protrusion, 26b ... protrusion, 30 ... sleeve (Connecting shaft)

Claims (9)

A brake bar having a bar grip portion and a bar connecting body extending rearward behind the bar grip portion.
A brake lever having a lever grip portion and a lever connecting body located in front of the lever gripping portion and on the side of the bar connecting body.
A connecting shaft that rotatably connects the bar connecting body and the lever connecting body,
A case that supports the bar connecting body and the lever connecting body, and
A brake wire having a wire connecting portion connected to at least one of the bar connecting body and the lever connecting body.
The bar connecting body has a bar rear fulcrum portion located behind the connecting shaft and the wire connecting portion.
The lever connecting body has a lever front fulcrum portion located in front of the connecting shaft and the wire connecting portion.
The case is
A first rear support portion that rotatably supports the bar connecting portion with the bar rear fulcrum portion as a fulcrum so that the wire connecting portion faces upward when an upward or backward force is applied to the bar grip portion. When,
A first front support portion that rotatably supports the lever connecting portion with the lever front fulcrum portion as a fulcrum so that the wire connecting portion faces upward when an upward force is applied to the lever grip portion. Has a pedestrian vehicle braking mechanism. The bar connecting body has a bar front fulcrum portion located in front of the connecting shaft and the wire connecting portion.
The lever connecting body has a lever rear fulcrum portion located behind the connecting shaft and the wire connecting portion.
The case is
A second front support portion that rotatably supports the bar connection portion with the bar front fulcrum portion as a fulcrum so that the wire connecting portion faces upward when a downward or forward force is applied to the bar grip portion. When,
A second rear support portion that rotatably supports the lever connecting portion with the lever rear fulcrum portion as a fulcrum so that the wire connecting portion faces upward when a downward force is applied to the lever grip portion. The brake mechanism for a pedestrian vehicle according to claim 1. The bar connecting body is formed with an arc-shaped first groove extending downward from the bar rear fulcrum portion.
The brake mechanism for a walking vehicle according to claim 2, wherein the first rear support portion of the case is composed of a first support shaft inserted into the first groove. The lever connecting body is formed with an arc-shaped second groove extending downward from the lever front fulcrum portion.
The brake mechanism for a walking vehicle according to any one of claims 1 to 3, wherein the first front support portion of the case is composed of a second support shaft inserted into the second groove. The bar connecting body has an inner surface of the bar facing the lever connecting body and an outer surface of the bar located on the side opposite to the inner side surface of the bar.
The lever connecting body has an inner surface of the lever facing the bar connecting body and an outer surface of the lever located on the side opposite to the inner side surface of the lever.
The brake of a walking vehicle according to any one of claims 1 to 4, wherein the case is in contact with the bar connecting body and the lever connecting body so as to sandwich the bar connecting body and the lever connecting body. mechanism. The bar coupling has a bar sliding portion that protrudes from the outer surface of the bar and contacts the case, and / or the lever coupling has a lever sliding portion that protrudes from the outer surface of the lever and contacts the case. The brake mechanism for a pedestrian vehicle according to claim 5. The bar connector has a sliding portion that projects from the inner surface of the bar and contacts the inner surface of the lever, and / or the lever connector projects from the inner surface of the lever and contacts the inner surface of the bar. The brake mechanism for a pedestrian vehicle according to claim 5 or 6, which has a moving portion. The brake mechanism for a walking vehicle according to any one of claims 1 to 7, wherein the center of the wire connecting portion and the center of the connecting shaft coincide with each other. The connecting shaft comprises a cylindrical sleeve rotatably fitted into the bar connecting body and the lever connecting body.
The brake mechanism for a walking vehicle according to any one of claims 1 to 8, wherein the wire connecting portion is composed of a member fitted in the sleeve.

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