JP6858959B2 - Height adjustment mechanism - Google Patents

Description

The present invention relates to a height adjusting mechanism such as a handle.

Conventionally, a walking vehicle for assisting a user's walking has been known. For example, Japanese Patent Application Laid-Open No. 2014-226421 (Patent Document 1) discloses a walking vehicle. According to Patent Document 1, a pair of left and right vertical frames having elbow rests at the upper end and wheels at the lower end, and an upper connecting member having a width adjusting mechanism and a folding button, one of them. A sliding member that slides in the vertical direction in the vertical frame of the above, a rotating frame in which one end is rotatably attached to the other vertical frame and the other end is rotatably attached to the sliding member. And a pedestrian vehicle comprising a lower connecting member having a sliding end position defining means for defining a sliding end position of the sliding member is provided.

Japanese Unexamined Patent Publication No. 2014-226421

An object of the present invention is to provide a height adjusting mechanism capable of reducing rattling of a pipe.

According to certain aspects of the invention, a height adjustment mechanism is provided. The height adjustment mechanism is arranged inside the inner pipe having a plurality of height adjustment holes, the outer pipe through which the inner pipe is slidably inserted, the cover placed at the end of the outer pipe, and the inside of the cover. It is provided with a pin that can be inserted into the height adjusting hole by sliding in the horizontal direction, and a pressing member that is arranged inside the cover and comes into surface contact with the inner pipe by sliding in the horizontal direction together with the pin.

As described above, according to the present invention, there is provided a height adjusting mechanism capable of reducing rattling of a pipe.

It is a front perspective view which shows the whole structure at the time of use of the pedestrian vehicle 100 which concerns on 1st Embodiment. It is a right side view at the time of using the walking vehicle 100 which concerns on 1st Embodiment. It is a front perspective view at the time of use of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112 and the bag 150 are removed according to the first embodiment. It is a rear perspective view at the time of use of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112 and the bag 150 are removed according to the first embodiment. It is a left side view at the time of use of the pedestrian vehicle 100 with the seat surface 110, the backrest 112, and the bag 150 removed according to the first embodiment. It is a front view at the time of use of the pedestrian vehicle 100 in the state which the seat surface 110, the backrest 112 and the bag 150 are removed according to 1st Embodiment. It is a rear view at the time of use of the pedestrian vehicle 100 with the seat surface 110, the backrest 112, and the bag 150 removed according to the first embodiment. FIG. 5 is a plan view of the walking vehicle 100 in a state where the seat surface 110, the backrest 112, and the bag 150 according to the first embodiment are removed. It is a side view of each vertical frame 101L, 101R which concerns on 1st Embodiment. It is a back sectional view of the rear part 1011L, 1011R of each vertical frame 101L, 101R which concerns on 1st Embodiment. It is a front perspective view at the time of folding of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112 and the bag 150 are removed according to the first embodiment. FIG. 5 is a rear perspective view of the walking vehicle 100 in a state in which the seat surface 110, the backrest 112, and the bag 150 according to the first embodiment are removed when the walking vehicle 100 is folded. It is a front view of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112, and the bag 150 according to the first embodiment are removed when the walking vehicle 100 is folded. It is a rear view of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112, and the bag 150 according to the first embodiment are removed when the walking vehicle 100 is folded. It is a photograph at the time of folding of the pedestrian vehicle 100 according to the first embodiment. FIG. 5 is a front perspective view showing a lifted state of the seat surface 110 of the walking vehicle 100, that is, an open state of the bag 150 according to the first embodiment. It is a front perspective view of the seat surface 110 and the bag 150 at the time of opening of the bag 150 which concerns on 1st Embodiment. It is an enlarged perspective view of the lower right part of the seat surface 110 at the time of using the walking vehicle 100 which concerns on 1st Embodiment. It is a front view of the pedestrian vehicle 100 at the time of use which concerns on the 1st Embodiment. It is a front view of the walking vehicle 100 which shows the state which started to fold the walking vehicle 100 which concerns on 1st Embodiment in the left-right direction. It is a front perspective view of the pedestrian vehicle 100 in a state where the handle portions 120L and 120R according to the first embodiment are raised. It is a side view of the pedestrian vehicle 100 in a state where the handle portions 120L and 120R according to the first embodiment are raised. FIG. 5 is a partial cross-sectional side view of a first state in the vicinity of the handle height adjusting mechanism 130R according to the first embodiment. FIG. 5 is a partial cross-sectional side view of a second state in the vicinity of the handle height adjusting mechanism 130R according to the first embodiment. FIG. 5 is a partial cross-sectional side view of a third state in the vicinity of the handle height adjusting mechanism 130R according to the first embodiment. FIG. 5 is a partial cross-sectional side view of a fourth state in the vicinity of the handle height adjusting mechanism 130R according to the first embodiment. It is a perspective view which shows the assembly structure of the brake mechanism 140L of the walking vehicle 100 which concerns on 1st Embodiment of this invention. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state where the brake is not applied which concerns on 1st Embodiment. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state which the normal brake is applied which concerns on 1st Embodiment. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state which the parking brake is applied which concerns on 1st Embodiment. It is a front perspective view at the time of use of the pedestrian vehicle 100 in the state where the seat surface 110, the backrest 112 and the bag 150 are removed according to the second embodiment. FIG. 5 is a plan view of the walking vehicle 100 in a state where the seat surface 110, the backrest 112, and the bag 150 according to the second embodiment are removed. It is a top view of the grip 224L which concerns on the 2nd Embodiment. FIG. 5 is an enlarged perspective view of a lower right portion of the seat surface 110 when the walking vehicle 100 according to the third embodiment is used. It is a front view of the pedestrian vehicle 100 at the time of using the pedestrian vehicle 100 according to the third embodiment. It is a front view of the walking vehicle 100 in the state where the folding of the walking vehicle 100 in the left-right direction according to the third embodiment is started. FIG. 5 is an enlarged perspective view of a lower right portion of the seat surface 110 when the walking vehicle 100 according to the fourth embodiment is used. FIG. 5 is a partial cross-sectional side view of a first state in the vicinity of the handle height adjusting mechanism 130R according to the sixth embodiment. FIG. 5 is a partial cross-sectional side view of a second state in the vicinity of the handle height adjusting mechanism 130R according to the sixth embodiment. FIG. 5 is a partial cross-sectional side view of a third state in the vicinity of the handle height adjusting mechanism 130R according to the sixth embodiment. FIG. 5 is a partial cross-sectional side view of a fourth state in the vicinity of the handle height adjusting mechanism 130R according to the sixth embodiment. FIG. 5 is a partial cross-sectional side view of a first state in the vicinity of the handle height adjusting mechanism 130R according to the seventh embodiment. FIG. 5 is a partial cross-sectional side view of a second state in the vicinity of the handle height adjusting mechanism 130R according to the seventh embodiment. FIG. 5 is a partial cross-sectional side view of a third state in the vicinity of the handle height adjusting mechanism 130R according to the seventh embodiment. FIG. 5 is a partial cross-sectional side view of a fourth state in the vicinity of the handle height adjusting mechanism 130R according to the seventh embodiment. It is a perspective view which shows the assembly structure of the brake mechanism 140L of the walking vehicle 100 which concerns on this 8th Embodiment. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state where the brake is not applied which concerns on 8th Embodiment. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state which the normal brake is applied which concerns on 8th Embodiment. It is a side view which shows the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 in the state which the parking brake is applied which concerns on 8th Embodiment. 9 is a perspective view showing an assembled configuration of a brake mechanism 240L of a walking vehicle 100 according to the ninth embodiment. 9 is a side view showing the inside of the cover 148L of the brake mechanism 240L of the walking vehicle 100 in the state where the brake is not applied according to the ninth embodiment. 9 is a side view showing the inside of the cover 148L of the brake mechanism 240L of the walking vehicle 100 in the state where the normal brake is applied according to the ninth embodiment. 9 is a side view showing the inside of the cover 148L of the brake mechanism 240L of the walking vehicle 100 in the state where the parking brake according to the ninth embodiment is applied.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are designated by the same reference numerals. Their names and functions are the same. Therefore, the detailed description of them will not be repeated. Further, the member on the left side of the walking vehicle has an "L" as a code, and the member on the right side has an "R" as a code. However, the members common to the left and right are collectively referred to as "R" and "L". It may be explained without adding "."
[First Embodiment]
<Overview of walking vehicle 100>

First, an outline of the walking vehicle 100 according to the present embodiment will be described. FIG. 1 is a front perspective view showing an overall configuration when the walking vehicle 100 according to the present embodiment is used. FIG. 2 is a side view of the walking vehicle 100 according to the present embodiment when used.

With reference to FIGS. 1 and 2, the walking vehicle 100 according to the present embodiment mounts a seat surface 110, a backrest 112, and a bag 150 between the left and right handle portions 120L and 120R. Then, as will be described later, the walking vehicle 100 can be folded in the left-right direction, the seat surface 110 can be lifted upward from the front to open the bag 150, the heights of the handle portions 120L and 120R can be adjusted, and so on. The brakes and parking brakes can be applied, and the front wheels 107L and 107R can be lifted by stepping on the tipping covers 160L and 160R. Hereinafter, each part of the walking vehicle 100 according to the present embodiment will be described in detail.
<Overall configuration of walking vehicle 100>

The overall configuration of the walking vehicle 100 according to the present embodiment will be described. FIG. 3 is a front perspective view of the walking vehicle 100 in a state where the seat surface 110, the backrest 112, and the bag 150 according to the present embodiment are removed. FIG. 4 is also a rear perspective view. FIG. 5 is also a left side view. FIG. 6 is also a front view. FIG. 7 is also a rear view. FIG. 8 is also a plan view.

With reference to FIGS. 1 to 8, the walking vehicle 100 according to the present embodiment mainly includes a pair of left and right vertical frames 101L and 101R, a pair of left and right front wheels 107L and 107R, and a pair of left and right rear wheels 108L. 108R, main connecting frames 102L, 102R, sub connecting frames 105L, 105R, 106L, 106R, seat surface 110, bag 150, pair of left and right handle portions 120L, 120R, and height adjusting mechanisms 130L, 130R. A pair of left and right brake mechanisms 140L and 140R and left and right tipping covers 160L and 160R are provided.

<About the running structure of the walking vehicle 100>
Each of the vertical frames 101L and 101R is made of iron, aluminum, an alloy thereof, a resin, or the like. FIG. 9 is a side view of each of the vertical frames 101L and 101R. With reference to FIG. 9, each of the vertical frames 101L and 101R is a rod-shaped member having an L-shape in a side view. Then, as shown in FIG. 10, each of the vertical frames 101L and 101R is a hollow member having a substantially rectangular shape in a cross-sectional view.

Returning to FIGS. 3 to 8, rear wheels 108L and 108R are pivotally supported at the rear ends of the rear portions 1011L and 1011R of the vertical frames 101L and 101R. The front frames 1012L and 1012R are welded to the front surface of the lower portion of each of the vertical frames 101L and 101R toward the front. Front wheels 107L and 107R are pivotally supported at the front ends of the front frames 1012L and 1012R. In the present embodiment, the diameters of the front wheels 107L and 107R are larger than the diameters of the rear wheels 108L and 108R. Further, in the present embodiment, the welded portion and the front frames 1012L and 1012R are covered with the front covers 103L and 103R.

Here, the tipping configurations of the rear wheels 108L and 108R according to the present embodiment will be described with reference to FIGS. 4, 5 and 7. The rear portions 1011L and 1011R of the vertical frames 101L and 101R that pivotally support the rear wheels 108L and 108R are provided with coverings 160L and 160R for tipping up to a position that covers the rear wheels 108L and 108R. A plurality of convex portions 160X and 160X are formed on the upper surfaces of the covers 160L and 160R so that the shoes do not slip when stepped on by the shoes.

As a result, the user steps on the covers 160L and 160R above the rear wheels 108L and 108R instead of the side portions of the rear wheels 108L and 108R, and pulls the handle portions 120L and 120R to pull the front wheels 107L and the pedestrian vehicle 100. The 107R can be lifted. As a result, the pedestrian vehicle 100 can easily get over the step on the road.

In the present embodiment, the rear wheels 108L and 108R are provided with a brake mechanism.
<About the folding structure of the walking vehicle 100 in the left-right direction>

Two connecting frames 102L and 102R are connected between the left and right vertical frames 101L and 101R so as to intersect in a front view X shape. More specifically, the first connecting frame 102L is arranged from the upper left to the lower right. The first connecting frame 102L bends forward at the lower part thereof and is pivotally supported by the right front frame 1012R. The upper part of the first connecting frame 102L is welded to the left seat frame 111L.

Similarly, the second connecting frame 102R is arranged from the upper right to the lower left. The second connecting frame 102R bends forward at the lower part thereof and is pivotally supported by the left front frame 1012L. The upper part of the second connecting frame 102R is welded to the right seat frame 111R. The first connecting frame 102L and the second connecting frame 102R are pivotally supported by each other via the shaft 102X in the central portion thereof.

Since the configuration is as described above, the walking vehicle 100 is moved left and right as shown in FIGS. 3 to 8 by causing the left and right connecting frames 102L and 102R to lie horizontally while rotating with each other on the shaft 102X. Can be opened in the direction and put into use. On the contrary, by causing the left and right vertical frames 101L and 101R to stand vertically while rotating each other on the shaft 102X, the walking vehicle 100 is closed in the left-right direction and put into a folded state as shown in FIGS. 11 to 15. be able to. Note that FIG. 11 is a front perspective view of the walking vehicle 100 in a state in which the seat surface 110, the backrest 112, and the bag 150 according to the present embodiment are removed when the walking vehicle 100 is folded. FIG. 12 is also a rear perspective view. FIG. 13 is also a front view. FIG. 14 is also a rear view. FIG. 15 is a photograph of the walking vehicle 100 according to the present embodiment when the walking vehicle 100 is folded.
<Seat surface 110 and bag 150 of walking vehicle 100>

FIG. 16 is a front perspective view showing a state in which the seat surface 110 of the walking vehicle 100 according to the present embodiment is lifted, that is, a state in which the bag 150 is opened. FIG. 17 is a front perspective view of the seat surface 110 and the bag 150 in a state where the bag 150 according to the present embodiment is opened.

With reference to FIGS. 1, 2, 16 and 17, in the present embodiment, the seat frames 111L and 111R are attached between the vertical frames 101L and 101R. More specifically, the left seat frame 111L is welded to the first connecting frame 102L. Then, the right seat frame 111R is welded to the second connecting frame 102R.

The rear end portions of the seat surface elevating frames 113L and 113R are pivotally supported at the substantially central portions of the left and right seat surface frames 111L and 111R in the front-rear direction. The bottom surfaces of the left and right seat surface elevating frames 113L and 113R are held in a horizontal state by abutting on the upper surface of the front portion of the seat surface frames 111L and 111R.

The upper end of the bag 150 is attached to the front of the left and right seat frames 111L and 111R, and more specifically to the front of the positions where the seat elevating frames 113L and 113R are pivotally supported. The left end of the seat surface 110 is attached to the rear portion of the left seat surface frame 111L and the left seat surface elevating frame 113L, and the seat is attached to the rear portion of the right seat surface frame 111R and the right seat surface elevating frame 113R. The right end of the surface 110 is attached. That is, the front portion 110A of the seat surface 110 functions as a lid of the bag 150 and also as a seat surface 110. Then, in the present embodiment, the seat surface 110 extends to a position rearward from the bag 150, that is, to the rear portions 110B of the left and right seat surface frames 111L and 111R.

Since it is configured as described above, as shown in FIGS. 1 and 2, the left and right seat surface elevating frames 113L and 113R are lowered so that the bottom surfaces thereof come into contact with the upper surfaces of the seat surface frames 111L and 111R. As a result, the left and right seat surface elevating frames 113L and 113R are maintained in a horizontal state, and a usable state of the seat surface 110, that is, a state in which the bag 150 is closed is realized. Then, as shown in FIGS. 16 and 17, the left and right seat elevating frames 113L and 113R are raised, that is, the front portion 110A of the seat 110 is lifted from the front to the upper side, and the left and right seat elevating frames 113L and 113L are raised. By bringing the rear end portion of 113R into contact with the upper surfaces of the seat surface frames 111L and 111R, the left and right seat surface elevating frames 113L and 113R were maintained in a vertical state, and the unused state of the seat surface 110, that is, the bag 150 was opened. Realize the state.

In the present embodiment, even if the front portion 110A of the seat surface 110 is lifted from the front to the upper side, the rear portion 110B of the seat surface 110 remains in the horizontal state. Therefore, even if the bag 150 is opened, the belt for releasing the hook is not pulled and the walking vehicle 100 is not folded in the left-right direction, as will be described later.

Further, in the present embodiment, the grip portion 110X is formed on the front portion of the seat surface 110. As a result, the user can easily open the bag 150 by grasping the grip portion 110X.
<Structure for reducing the deflection of the walking vehicle 100>

FIG. 18 is an enlarged perspective view of a lower right portion of the seat surface 110 when the walking vehicle 100 according to the present embodiment is used. FIG. 19 is a front view of the walking vehicle 100 at the time of use according to the present embodiment. FIG. 20 is a front view of the walking vehicle 100 showing a state in which the walking vehicle 100 according to the present embodiment has begun to be folded in the left-right direction.

First, the configuration on the right side of the pedestrian vehicle 100 will be described with reference to FIGS. 18 and 19. The front base 1041R and the rear base 1042R are erected on the upper part of the right vertical frame 101R so as to be separated from each other in the front-rear direction toward the left. A shaft 109R is pivotally supported between the front base 1041R and the rear base 1042R. In the present embodiment, when the seat surface 110 is in use, the seat surface frame 111R is placed on the upper surfaces of the front base 1041R and the rear base 1042R, respectively.

In the present embodiment, the lower part of the rear base 1042R and the upper part of the main connecting frame 102R are connected by the sub-connecting frames 105R and 106R. The sub-connecting frames 105R and 106R may be fixed to each other by the front and rear frames 1051R, or the sub-connecting frames 105R and 106R and the front and rear frames 1051R may be integrally molded resin members. The sub-connecting frames 105R and 106R and the front-rear frame 1051R are formed in an H-shape in a plan view so that the lower portion of the main connecting frame 102R abuts on and is supported by the upper surface of the front-rear frame 1051R when the seat surface 110 is in use. It is configured.

On the other hand, the support member 114R is attached to the seat frame 111R at a position located to the left of the vertical frame 101R. The support member 114R is formed in a gate shape in a side view of the walking vehicle 100, and the front rib 1141R and the rear rib 1142R are formed. A shaft 115R is pivotally supported between the lower part of the front rib 1141R and the rear rib 1142R. A hook 116R is pivotally supported on the shaft 115R. The hook 116R is formed with a recess 1161R on the lower right side (outside of the pedestrian vehicle 100) for being hooked on the shaft 109R, and a hole 1162R is formed on the lower left side (inside of the pedestrian vehicle 100) to hang the ring 117R. Has been done. The hook 116R is urged by a winding spring 118R or the like in a direction in which the hook 116R is hooked on the shaft 109R.

In particular, in the present embodiment, when the seat surface 110 is used, the front rib 1141R, the rear rib 1142R, and the hook 116R of the support member 114R are fitted between the front base 1041R and the rear base 1042R. In this state, the hook 116R is caught on the shaft 109R by the urging force of the winding spring 118R. More specifically, in a state where the front rib 1141R, the rear rib 1142R, and the hook 116R of the support member 114R are fitted between the front base 1041R and the rear base 1042R, the gap between the front rib 1141R and the front base 1041R and the rear The gap between the rib 1142R and the rear base 1042R is preferably about 0 mm to 3 mm, more preferably about 0 mm to 1 mm, and even more preferably about 0 mm to 0.5 mm.

In the present embodiment, the configuration on the left side of the walking vehicle 100 is the same as that on the right side, and thus the description thereof will not be repeated here. Then, the ring 117R on the right side and the ring on the left side are connected by a string-like member such as a belt 119. The central portion of the belt 119 extends from the notch in the rear portion 110B of the seat surface 110 to above the seat surface 110. More specifically, the belt 119 reaches the left hook 116L from the right hook 116R through the right notch on the seat surface 110, above the seat surface 110, and the left notch on the seat surface 110. The rear portion 110B of the seat surface 110 may be pulled upward when the user pulls the belt 119 upward, or the belt 119 may be pulled upward when the rear portion 110B of the seat surface 110 is pulled upward. There may be.

With the above configuration, when the user pulls the belt 119 or the rear portion 110B of the seat surface 110 upward, as shown in FIG. 20, the left and right rings 117L and 117R are moved inside the pedestrian vehicle 100 by the belt 119. Be pulled. As a result, the lower portions of the left and right hooks 116L and 116R are pulled toward the center of the walking vehicle 100, and the hooks 116L and 116R are disengaged from the shaft 109R on the vertical frame 101L and 101R side. Then, the hooks 116L and 116R and the seat frames 111L and 111R are pulled upward by the belt 119 and the seat surface 110 as they are, the connecting frames 102L and 102R are folded in the left-right direction, and the entire walking vehicle 100 is folded in the left-right direction. Is done.
<Height adjustment mechanism of handle 120L, 120R>

FIG. 21 is a front perspective view of the walking vehicle 100 according to the present embodiment in a state where the handle portions 120L and 120R are raised. FIG. 22 is a side view of the walking vehicle 100 according to the present embodiment in a state where the handle portions 120L and 120R are raised.

With reference to FIGS. 3, 4, 21, and 22, the upper frames 121L and 121R are inserted from above the vertical frames 101L and 101R, respectively, with respect to the walking vehicle 100 according to the present embodiment. Handle bases 122L and 122R are attached to the upper ends of the upper frames 121L and 121R, respectively. Handle frames 123L and 123R are attached to the rear portions of the handle bases 122L and 122R, respectively. The handle bases 122L and 122R and the handle frames 123L and 123R may be integrally molded. The handle frames 123L and 123R are covered with grips 124L and 124R, respectively.

In the present embodiment, the left upper frame 121L, the left handle base 122L, the left handle frame 123L, and the left grip 124L are collectively referred to as the left handle portion 120L, and the right upper frame 121R and the right. The handle base 122R, the right handle frame 123R, and the right grip 124R are collectively referred to as the right handle portion 120R.

In the present embodiment, the height adjusting mechanisms 130L and 130R are attached to the upper ends of the vertical frames 101L and 101R. The height adjusting mechanisms 130L and 130R are mechanisms for adjusting the degree of the upper frames 121L and 121R inserted into the vertical frames 101L and 101R. Since the configurations of the height adjusting mechanism 130L on the left side and the height adjusting mechanism 130R on the right side are the same, the height adjusting mechanism 130R on the right side will be described below. For the sake of explanation, the symbols R and L relating to the height adjusting mechanism 130 are omitted. FIG. 23 is a partial cross-sectional side view of the vicinity of the height adjusting mechanism 130 of the handle according to the present embodiment.

With reference to FIG. 23, the upper frame 121R is inserted into the vertical frame 101R from above. A plurality of adjusting holes 1211, 1212, 1213, 1214, 1215, 1216 are formed in the rear portion of the upper frame 121R in the height direction.

An adjustment case 139 is attached to the upper part of the vertical frame 101R so as to surround the upper frame 121R. The adjustment case 139 houses a pin 132 that can be inserted into the adjustment hole 1211R ..., a horizontal member 133, an upper and lower member 134, an urging member 135, and a front end portion of the operation lever 131 inside the rear portion. Will be done. The horizontal member 133 is integrated with the pin 132 and can slide inside the adjustment case 139 in the front-rear direction. The front surface 133Z of the horizontal member 133 is preferably formed in a shape that allows surface contact with the outer peripheral surface of the upper frame 121R.

The upper and lower members 134 can slide in the vertical direction. The horizontal member 133 slides in the front-rear direction in accordance with the movement of the upper and lower members 134. More specifically, when the upper and lower members 134 move upward, the horizontal member 133 is configured to move forward, and when the upper and lower members 134 move downward, the horizontal member 133 is configured to move backward. Further, in the present embodiment, the upper and lower members 134 are urged from the lower side to the upper side by the urging member 135.

An upper contact portion 131X and a lower contact portion 131Y are formed at the front end portion of the operating lever 131 so as to be able to contact the horizontal plane above the upper and lower members 134 and the slope at the middle portion. Then, when the rear portion of the operating lever 131 is lifted upward, the upper and lower members 134 are lowered by the upper contact portion 131X, and when the rear portion of the operating lever 131 is pushed downward, the upper and lower members 134 are raised by the lower contact portion 131Y. It is configured.

Because of this configuration, in the present embodiment, as shown in FIG. 23, when the lower portion of the operating lever 131 is lifted rearward and upward, the upper contact portion 131X of the operating lever 131 becomes the urging member 135. Against this, the upper and lower members 134 are pushed down. Then, as shown in FIG. 24, the diagonal surface of the upper and lower members 134 pushes down the diagonal surface of the rear portion of the horizontal member 133, so that the horizontal member 133 and the pin 132 slide rearward. As a result, the pin 132 comes out of the adjusting hole 1214, and the upper frame 121R can slide in the vertical direction with respect to the height adjusting mechanism 130 and the vertical frame 101R. In this state, the user adjusts the upper frame 121R to a desired height.

When the upper frame 121R reaches a desired height and the user releases the operation lever 131, the upper and lower members 135 are urged in the upward direction, and the oblique surface of the upper and lower members 134 is the horizontal member 133. The slanted surface at the rear is pushed upward, and the horizontal member 133 and the pin 132 are urged forward. If the heights of the pin 132 and the adjustment hole 1211R ... Do not match, the pin 132 cannot be inserted into the adjustment hole 1211R ... because it hits the outer circumference of the upper frame 121R.

When the user slightly changes the height of the upper frame 121R and the height of the pin 132 matches the height of any of the adjusting holes 1211R ..., The urging force of the urging member 135 causes as shown in FIG. The upper and lower members 134 are further raised, and the diagonal surface of the upper and lower members 134 pushes up the diagonal surface at the rear of the horizontal member 133, so that the horizontal member 133 and the pin 132 slide forward, that is, the pin 132 The upper frame 121R is fixed to the height adjusting mechanism 130 and the vertical frame 101R by entering the adjusting holes 1211R.

In this state, when the user pushes the lower part of the operation lever 131 forward, as shown in FIG. 26, the upper and lower members 134 are further pushed upward by the lower contact portion 131Y of the operation lever 131, and the lower side of the upper and lower members 134. The diagonal surface of the horizontal member 133 pushes up the lower diagonal surface of the rear portion of the horizontal member 133, so that the horizontal member 133 and the pin 132 slide further forward. As a result, the front surface of the upper and lower members 134 presses the rear surface of the horizontal member 133 forward. As a result, the front surface 133Z of the horizontal member 133 pushes the rear surface of the upper frame 121R forward, that is, the horizontal member 133 pushes the upper frame 121R against the inner surface of the vertical frame 101R, causing rattling of the upper frame 121R with respect to the vertical frame 101R. Be prevented.
<Brake mechanism>

Next, the brake mechanism 140L according to the present embodiment will be described with reference to FIGS. 27 and 28. FIG. 27 is a perspective view showing an assembled configuration of the brake mechanism 140L of the walking vehicle 100 according to the present embodiment. FIG. 28 is a side view showing the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 according to the present embodiment. In the following, the brake mechanism 140L on the left side of the pedestrian vehicle 100 will be described, but since the brake mechanism 140R on the right side of the pedestrian vehicle 100 has the same configuration, the description will not be repeated here.

The brake mechanism 140L is mainly composed of a handle base 122L, a brake lever 141L, a wire 145L, a rotating pin 147L, and covers 148L and 149L. Since the configurations around the rear wheels 108L and 108R beyond the brake wire 145L, for example, the brake bodies 143L and 143R such as the brake shoes and adjusters, are the same as those of the normal ones, the description will not be repeated here.

Further, the brake may be applied to the rear wheels 108L, 108R, may be applied to the front wheels 107L, 107R, or may be pressed from the inside to the outside of the tire. , It may be pressed from the outside to the inside of the tire, it may be pressed to the side of the tire, or it may be a disc brake.

The brake lever 141L has a wide base side, in other words, a portion hidden by the covers 148L and 149L, and further, a portion located on the side of the handle base 122L. A heart-shaped slit 141X through which the rotating pin 147L is passed is formed on the base side. Further, a convex portion 141Y used as a fulcrum during normal braking is formed on the front upper portion on the base side, and a contact portion 141Z used as a fulcrum during parking braking is formed on the rear lower portion on the base side. Then, a brake wire 145L is attached to the lower front part on the base side. The method of attaching the brake wire 145L to the brake lever 141L is not particularly limited, and the metal fitting at the end of the brake wire 145L may be fitted into the elongated hole at the front end of the brake wire 141L, or the brake wire 145L may be fitted. The end may be directly attached to the hook of the brake lever 141L or the like.

The handle base 122L is formed with a hole 122A through which the wire 145L is passed and a hole 122X through which the rotation pin 147L is passed. A concave portion 122Y for supporting the convex portion 141Y of the brake lever 141L during normal braking is formed in the front upper portion of the handle base 122L. At the rear lower portion of the handle base 122L, a contact portion 122Z is formed at a substantially right angle to the side view to which the contact portion 141Z of the brake lever 141L is contacted during parking braking.

Then, the brake lever 141L is pivotally supported by the handle base 122L so that the rotation pin 147L penetrating the hole 122X of the handle base 122L is located in the slit 141X of the brake lever 141L. The handle base 122L and the base of the brake lever 141L are covered with covers 148L and 149L.

With this configuration, when the user applies an upward force to the rear part of the brake lever 141L against the urging force of the wire 145L during normal braking, as shown in FIG. 29, the brake lever 141L The convex portion 141Y fits into the concave portion 122Y of the handle base 122L, and the rear portion of the brake lever 141L rotates upward around the concave portion 122Y. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R. When the user releases the brake lever 141L, the wire is pulled by the wire 145L and the rear portion of the brake lever 141L rotates downward.

On the other hand, at the time of parking braking, the user pushes down the brake lever 141L against the urging force of the wire 145L. At this time, as shown in FIG. 30, the contact portion 141Z of the brake lever 141L hits the contact portion 122Z of the handle base 122L, and the rear portion of the brake lever 141L rotates downward about the contact portion 122Z. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R.

More specifically, since the brake lever 141L moves while the slit 141X is restricted to the rotation pin 147L between the state in which the brake is not applied and the state in which the parking brake is applied, that is, the rotation pin 147L Since it moves relatively along the slit 141X, the wire 145L overcomes the state of being pulled more than the parking brake state and reaches the parking brake state. As a result, even if the user releases his / her hand, the brake is maintained in the braked state without overcoming the state.
[Second embodiment (form with different handles)]

In the first embodiment, as shown in FIG. 3, cylindrical grips 124L and 124R are attached to the handle frames 123L and 123R. However, it is not limited to such a form. For example, it is preferable to use a grip that is easy for the user to grip while walking by the walking vehicle 100, and is also easy to grip when facing backward and sitting on the seat surface 110. Hereinafter, the grip on the left side of the walking vehicle 100 will be described, but since the configuration of the grip on the right side is the same, the description will not be repeated here.

FIG. 31 is a front perspective view of the walking vehicle 100 according to the present embodiment. FIG. 32 is a plan view of the walking vehicle 100 according to the present embodiment. FIG. 33 is a plan view of the left grip 224L according to the present embodiment. As shown in FIGS. 31, 32, and 33, the front and rear central portions 2241 of the grip 224L according to the present embodiment are greatly raised in the inward direction of the walking vehicle 100. The rear portion 2242 of the grip 224L is slightly raised inward of the walking vehicle 100.

As a result, the user can easily grip the grip 224L because the thumb can be brought into contact with the raised portion of the central portion 2241 from the front while walking on the walking vehicle 100. On the other hand, when sitting on the seat surface 110, the user can easily grip the grip 224L because the thumb can be placed between the ridge of the rear portion 2242 and the ridge of the central portion 2241.
[Third embodiment (a form having a different deflection reduction structure)]

In the above embodiment, as shown in FIG. 18, the hooks 116L and 116R on the seat frame 111L and 111R sides are hung on the shafts 109R on the vertical frames 101L and 101R. However, it is not limited to such a form.

FIG. 34 is an enlarged perspective view of a lower right portion of the seat surface 110 when the walking vehicle 100 according to the present embodiment is used. FIG. 35 is a front view of the pedestrian vehicle 100 when the pedestrian vehicle 100 according to the present embodiment is used. FIG. 36 is a front view of the walking vehicle 100 in a state where the left and right sides of the walking vehicle 100 according to the present embodiment are started to be folded.

First, the configuration on the right side of the pedestrian vehicle 100 will be described with reference to FIGS. 34 and 35. The front base 1041R and the rear base 1042R are fixed to the upper part of the right vertical frame 101R so as to be separated from each other in the front-rear direction toward the left. A shaft 109R is pivotally supported between the front base 1041R and the rear base 1042R. Then, in the present embodiment, the hook 216R is pivotally supported on the shaft 109R of the vertical frame 101R.

More specifically, in the present embodiment, the hook 216R is hooked from the outside of the walking vehicle 100 to the shaft 115R on the seat surface frame 111R side, which will be described later. Then, the ring 117R is attached to the lower part of the hook 216R. The hook 216R is urged by a winding spring 218R or the like in a direction in which the hook 216R is hooked on the shaft 115R.

A support member 114R is attached to the seat frame 111R at a position located to the left of the vertical frame 101R. The support member 114R is formed in a gate shape in a side view of the walking vehicle 100, and the front rib 1141R and the rear rib 1142R are formed. A shaft 115R is pivotally supported between the lower part of the front rib 1141R and the rear rib 1142R. In this embodiment, the hook 216R is hooked on the shaft 115R from the right side. With the hook 216R hooked on the shaft 115R, the gap between the hook 216R and the front rib 1141R, the gap between the front rib 1141R and the front base 1041R, the gap between the hook 216R and the rear rib 1142R, the rear rib 1142R and the rear base 1042R. The gap between the two and the hook is preferably about 0 mm to 3 mm, more preferably about 0 mm to 1 mm, and even more preferably about 0 mm to 0.5 mm.

Since the configuration on the left side of the pedestrian vehicle 100 is the same as the configuration on the right side, the description will not be repeated here. Then, the ring 117R on the right side and the ring on the left side are connected by a belt 119. The belt 119 and the seat surface 110 are connected at least in part.

With the above configuration, when the user pulls the seat surface 110 or the belt 119 upward, as shown in FIG. 36, the lower portions of the left and right hooks 216L and 216R walk through the left and right rings 117L and 117R. It is pulled toward the center of the car 100, and the hooks 216L and 216R are disengaged from the shaft 115R on the seat surface frame 111L and 111R side. Then, the seat frames 111L and 111R are pulled upward, the connecting frames 102L and 102R are folded, and the entire walking vehicle 100 is folded in the left-right direction.

[Fourth embodiment (form with different deflection reduction structure)]
The structure for hooking is not limited to such a form, and for example, as shown in FIG. 37, the hook 314R may have a recess for the support member itself to be hooked on the shaft 109R. In other words, the hook 314R may be a support member. The hook 314R is urged by a winding spring 318R or the like in a direction in which the hook 314R is hooked on the shaft 109R.

Also in this case, it is preferable that the hook 314R is sandwiched between the front base 1041R and the rear base 1042R.
[Fifth embodiment (form with different deflection reduction structure)]

In the above embodiment, the left and right sides of the walking vehicle 100 have anti-deflection mechanisms such as hooks 116L and 116R, front base 1041R, and rear base 1042R. However, it is not limited to such a form. That is, only on the right side of the walking vehicle 100, a deflection prevention mechanism such as a hook 116R, a front base 1041R, or a rear base 1042R may be provided. On the contrary, only the left side of the walking vehicle 100 may have a deflection prevention mechanism such as a hook 116L, a front base, or a rear base.

Further, in the above-described embodiment, the hooks 116L and 116R and the support member 114R are sandwiched between the front base 1041R and the rear base 1042R from the front-rear direction. Alternatively, the hook 216R is sandwiched between the support member 114R from the front-rear direction. However, even if the front base 1041R restricts the forward movement of the hooks 116L, 116R and the support member 114R, or the rear base 1042R restricts the backward movement of the hooks 116L, 116R and the support member 114R. Good. Alternatively, the front rib 1141R of the support member 114R may restrict the forward movement of the hook 216R, or the rear rib 1142R of the support member 114R may restrict the backward movement of the hook 216R. That is, it suffices as long as it suppresses the relative movement of either the front or the back.

As described above, when the seat surface 110 is used, the members on the seat surface frames 111L and 111R sides and the members on the vertical frames 101L and 101R sides are configured to overlap each other in the front view, or one of them is configured to overlap the other from the front-rear direction. It is preferable that the relative movement can be restricted by being configured to be sandwiched.
[Sixth embodiment (a form in which the height adjustment mechanism is different)]

The handle height adjusting mechanisms 130R and 130L are not limited to those of the first embodiment as shown in FIG. 21. For example, the upper and lower members and the horizontal member may be one member. Also in this embodiment, the height adjusting mechanisms 130L and 130R are attached to the upper ends of the vertical frames 101L and 101R. Since the configurations of the height adjusting mechanism 130L on the left side and the height adjusting mechanism 130R on the right side are the same, the height adjusting mechanism 130R on the right side will be described below. For the sake of explanation, the symbols R and L relating to the height adjusting mechanism 130 are omitted.

FIG. 38 is a partial cross-sectional side view of the vicinity of the height adjusting mechanism 130 of the handle according to the present embodiment. With reference to FIG. 38, the upper frame 121R is inserted into the vertical frame 101R from above. A plurality of adjusting holes 1211, 1212, 1213, 1214, 1215, 1216 are formed in the rear portion of the upper frame 121R in the height direction.

An adjustment case 139 is attached to the upper part of the vertical frame 101R so as to surround the upper frame 121R. The adjustment case 139 houses a pin 132 that can be inserted into the adjustment hole 1211 ..., a horizontal member 233, an urging member 235, and a front end portion of the operating lever 231 inside the rear portion. The horizontal member 233 is integrated with the pin 132 and can slide inside the adjustment case 139 in the front-rear direction. In particular, the front surface 233Z of the horizontal member 233 is preferably formed in a shape that allows surface contact with the outer peripheral surface of the upper frame 121R.

The horizontal member 233 according to the present embodiment is urged from the rear to the front by the urging member 235. The horizontal member 233 is formed with a vertical slit 233X at the rear portion. The front end of the operating lever 231 is inserted into the slit 233X.

Therefore, in the present embodiment, as shown in FIG. 38, when the lower portion of the operating lever 231 is lifted rearward and upward, the front end of the operating lever 231 moves downward and rearward. As a result, as shown in FIG. 39, the slit 233X of the horizontal member 233 is pulled backward, and the horizontal member 233 and the pin 132 slide backward against the urging member 235. As a result, the upper frame 121R can slide in the vertical direction with respect to the height adjusting mechanism 130 and the vertical frame 101R. In this state, the user adjusts the upper frame 121R to a desired height.

When the upper frame 121R reaches a desired height and the user releases the operating lever 231, the urging member 135 urges the horizontal member 233 and the pin 132 forward, as shown in FIG. 40. If the heights of the pin 132 and the adjustment hole 1211 ... Do not match, the pin 132 hits the outer circumference of the upper frame 121R and cannot be inserted into the adjustment hole 1211 ...

When the user slightly changes the height of the upper frame 121R and the height of the pin 132 matches the height of any of the adjusting holes 1211 ..., The urging force of the urging member 235 causes the horizontal member 233 and the pin 132. The pin 132 slides forward, that is, the pin 132 enters the adjusting hole 1211 ..., And the upper frame 121R is fixed to the height adjusting mechanism 130 and the vertical frame 101R.

In this state, when the user pushes the lower part of the operation lever 231 forward, as shown in FIG. 41, the front end portion of the operation lever 231 is pushed forward and upward, and the slit 233X of the horizontal member 233 is pushed forward and horizontally. The member 233 and the pin 132 slide further forward. As a result, the front surface 233Z of the horizontal member 233 pushes the rear surface of the upper frame 121R forward, that is, the horizontal member 233 presses the upper frame 121R against the inner front surface of the vertical frame 101R. As a result, rattling of the upper frame 121R with respect to the vertical frame 101R is prevented.
[7th embodiment (a form in which the height adjustment mechanism is different)]

In the above embodiment, as shown in FIG. 21, the heights of the handle portions 120L and 120R are adjusted by rotating the operating levers 131 and 231. However, it is not limited to such a form. Also in this embodiment, the height adjusting mechanisms 130L and 130R are attached to the upper ends of the vertical frames 101L and 101R. Since the configurations of the height adjusting mechanism 130L on the left side and the height adjusting mechanism 130R on the right side are the same, the height adjusting mechanism 130R on the right side will be described below. For the sake of explanation, the symbols R and L relating to the height adjusting mechanism 130 are omitted.

FIG. 42 is a partial cross-sectional side view of the vicinity of the height adjusting mechanism 130 of the handle according to the present embodiment. With reference to FIG. 42, the upper frame 121R is inserted into the vertical frame 101R from above. A plurality of adjusting holes 1211, 1212, 1213, 1214, 1215, 1216 are formed in the rear portion of the upper frame 121R in the height direction.

An adjustment case 139 is attached to the upper part of the vertical frame 101R so as to surround the upper frame 121R. The adjustment case 139 houses a pin 132 that can be inserted into the adjustment hole 1211 ..., a horizontal member 133, a vertical lever 331, and an urging member 135 inside the rear portion thereof. The horizontal member 133 is integrated with the pin 132 and can slide inside the adjustment case 139 in the front-rear direction. In particular, the front surface 133Z of the horizontal member 133 is preferably formed in a shape that allows surface contact with the outer peripheral surface of the upper frame.

The vertical lever 331 according to the present embodiment is configured such that the rear portion protrudes rearward from the adjustment case 139 so that the user can operate the protruding portion up and down. The vertical lever 331 can slide in the vertical direction according to the movement of the horizontal member 133. More specifically, when the vertical lever 331 moves upward, the horizontal member 133 is configured to move forward, and when the vertical lever 331 moves downward, the horizontal member 133 is configured to move backward. The vertical lever 331 is urged from below to above by the urging member 135.

Because of this configuration, in the present embodiment, when the user slides the vertical lever 331 downward against the urging member 135 as shown in FIG. 42, as shown in FIG. 43, The slanted surface of the vertical lever 331 pushes down the slanted surface at the rear of the horizontal member 133, so that the horizontal member 133 and the pin 132 slide rearward. As a result, the upper frame 121R can slide in the vertical direction with respect to the height adjusting mechanism 130 and the vertical frame 101R. In this state, the user adjusts the upper frame 121R to a desired height.

When the upper frame 121R reaches a desired height and the user releases the upper / lower lever 331, the urging member 135 urges the upper / lower lever 331 in the ascending direction, and the oblique surface of the upper / lower member 134 becomes a horizontal member. The horizontal member 133 and the pin 132 are urged forward by pushing up the oblique surface at the rear of the 133. If the heights of the pin 132 and the adjustment hole 1211 ... Do not match, the pin 132 hits the outer circumference of the upper frame 121R and cannot be inserted into the adjustment hole 1211 ....

When the user slightly changes the height of the upper frame 121R and the height of the pin 132 matches the height of any of the adjusting holes 1211 ..., The urging force of the urging member 135 causes as shown in FIG. The vertical member 133 and the pin 132 slide forward, that is, the pin 132 is adjusted by raising the vertical lever 331 and the diagonal surface of the vertical lever 331 pushing up the diagonal surface at the rear of the horizontal member 133. The upper frame 121R is fixed to the height adjusting mechanism 130 and the vertical frame 101R by entering the holes 1211.

In this state, when the user pushes the vertical lever 331 further upward, as shown in FIG. 45, the lower diagonal surface of the vertical lever 331 pushes up the lower diagonal surface of the rear portion of the horizontal member 133. As a result, the horizontal member 133 and the pin 132 slide further forward. As a result, the front surface of the vertical lever 331 presses the rear surface of the horizontal member 133 forward. As a result, the front surface 133Z of the horizontal member 133 pushes the rear surface of the upper frame 121R forward, that is, the horizontal member 133 pushes the upper frame 121R against the inner front surface of the vertical frame 101R. As a result, rattling of the upper frame 121R with respect to the vertical frame 101R is prevented.
[Eighth embodiment (a form in which the brake mechanism is different)]

In the above embodiment, the brake lever 141L normally applies the brake around the concave portion 122Y of the handle base 122L and the convex portion 141Y of the brake lever 141L as shown in FIG. 27, or the contact portion 122Z of the handle base 122L. The brake lever 141L applies the parking brake around the contact portion 141Z of the brake lever 141L and the brake lever 141L. However, the shapes of the convex portions 141Y, the concave portions 122Y, and the contact portions 141Z and 122Z are not limited to such shapes.

FIG. 46 is a perspective view showing an assembled configuration of the brake mechanism 140L of the walking vehicle 100 according to the present embodiment. FIG. 47 is a side view showing the inside of the cover 148L of the brake mechanism 140L of the walking vehicle 100 according to the present embodiment. In the following, the brake mechanism 140L on the left side of the pedestrian vehicle 100 will be described, but since the brake mechanism 140R on the right side of the pedestrian vehicle 100 has the same configuration, the description will not be repeated here.

With reference to FIGS. 46 and 47, the brake mechanism 140L is mainly composed of a handle base 122L, a brake lever 141L, a wire 145L, a rotating pin 147L, and covers 148L and 149L. Since the configurations around the rear wheels 108L and 108R beyond the brake wire 145L, for example, the brake bodies 143L and 143R such as the brake shoes and adjusters, are the same as those of the normal ones, the description will not be repeated here.

The brake lever 141L has a wide base side, in other words, a portion hidden by the covers 148L and 149L, and further, a portion located on the side of the handle base 122L. A heart-shaped slit 141X through which the rotating pin 147L is passed is formed on the base side. Further, a convex portion 141Y used as a fulcrum during normal braking is formed on the front upper portion on the base side, and a convex portion 141 W used as a fulcrum during parking braking is formed on the rear lower portion on the base side. Then, a brake wire 145L is attached to the lower front part on the base side.

The handle base 122L is formed with a hole 122A through which the brake wire 145L is passed and a hole 122X through which the rotation pin 147L is passed. A concave portion 122Y for supporting the convex portion 141Y of the brake lever 141L during normal braking is formed in the front upper portion of the handle base 122L. A concave portion 122W for supporting the convex portion 141W of the brake lever 141L at the time of parking braking is formed in the lower rear portion of the handle base 122L.

Then, the brake lever 141L is pivotally supported by the handle base 122L so that the rotation pin 147L penetrating the hole 122X of the handle base 122L is located in the slit 141X of the brake lever 141L. The handle base 122L and the base of the brake lever 141L are covered with covers 148L and 149L.

With this configuration, when the user raises the brake lever 141L against the urging force of the wire 145L during normal braking, as shown in FIG. 48, the convex portion 141Y of the brake lever 141L has the handle base 122L. The brake lever 141L rotates upward around the recess 122Y. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R. When the user releases the brake lever 141L, the brake lever 141L is pulled by the wire 145L and rotates downward.

On the other hand, at the time of parking braking, the user pushes down the brake lever 141L against the urging force of the wire 145L. Then, as shown in FIG. 49, the convex portion 141W of the brake lever 141L hits the concave portion 122W of the handle base 122L, and the brake lever 141L rotates downward about the concave portion 122W. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R.

More specifically, in the brake lever 141L, the slit 141X moves along the rotation pin 147L in the middle of rotating downward, that is, the rotation pin 147L moves relatively along the slit 141X. The parking brake state is realized by overcoming the state in which the wire 145L is pulled more than in the parking brake state. This keeps the brakes applied even when the user releases the hand.
[9th embodiment (a mode in which the brake mechanism is different)]

In the above embodiment, as shown in FIG. 27, a heart-shaped slit 141X is formed in the brake lever 141L. However, it is not limited to such a form. FIG. 50 is a perspective view showing an assembled configuration of the brake mechanism 240L of the walking vehicle 100 according to the present embodiment. FIG. 51 is a side view showing the inside of one cover 148L and the handle bases 2221L and 2222L of the brake mechanism 240L of the walking vehicle 100 according to the present embodiment. In the following, the brake mechanism 240L on the left side of the pedestrian vehicle 100 will be described, but since the brake mechanism on the right side of the pedestrian vehicle 100 has the same configuration, the description will not be repeated here.

With reference to FIGS. 50 and 51, the brake mechanism 240L mainly includes a first handle base 2221L, a second handle base 2222L, a brake lever 241L, a wire 145L, a pin 147L, and a cover 148L. It is composed of 149L. Since the configurations around the rear wheels 108L and 108R beyond the brake wire 145L, for example, the brake bodies 143L and 143R such as the brake shoes and adjusters, are the same as those of the normal ones, the description will not be repeated here.

The brake lever 241L has a wide base side, in other words, a portion hidden by the covers 148L and 149L, and further, a portion located on the side of the handle bases 2221L and 2222L. On the base side, pins 241X and 241X are erected on both the left and right sides. Further, a convex portion 241Y used as a fulcrum during normal braking is formed on the front upper portion on the base side, and a contact portion 241Z used as a fulcrum during parking braking is formed on the rear lower portion on the base side. Then, a brake wire 145L is attached to the lower front part on the base side.

The handle bases 2221L and 2222L are configured substantially symmetrically, and heart-shaped slits 2221X and 2222X through which the pins 241X and 241X of the brake lever 241L are passed are formed in each of the handle bases 2221L and 2222L. A concave portion 2221Y for supporting the convex portion 241Y of the brake lever 241L during normal braking is formed in the front upper portion of the handle bases 2221L and 2222L. At the rear lower portion of the handle bases 2221L and 2222L, contact portions 2221Z are formed to which the contact portion 241Z of the brake lever 241L is brought into contact during parking braking.

Then, the brake lever 241L is pivotally supported by the handle bases 2221L and 2222L so that the pins 241X and 241X of the brake levers 241L are located in the slits 2221X and 2221X of the handle bases 2221L and 2222L. The handle bases 2221L and 2222L and the base of the brake lever 241L are covered with covers 148L and 149L.

With this configuration, when the user lifts the brake lever 241L against the urging force of the wire 145L during normal braking, as shown in FIG. 52, the convex portion 241Y of the brake lever 241L has the handle base 2221L. , 2222L fits into the recess 2221Y, and the brake lever 241L rotates upward around the recess 2221Y. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R. When the user releases the brake lever 241L, the brake lever 241L is pulled by the wire 145L and rotates downward.

On the other hand, at the time of parking braking, the user pushes down the brake lever 241L against the urging force of the wire 145L. As shown in FIG. 53, the contact portion 241Z of the brake lever 241L hits the contact portion 2221Z of the handle bases 2221L and 2222L, and the brake lever 241L rotates downward with the contact portion 2221Z as an axis. As a result, the wire 145L is pulled and a braking force is generated on the rear wheels 108L and 108R.

More specifically, since the pin 241X moves along the slits 2221X and 2222X while the brake lever 241L is rotating downward, the brake lever 241L overcomes the state of pulling the wire 145L more than the parking brake. Realize the state. This keeps the brakes applied even when the user releases the hand.

(Summary)
According to the above embodiment, the height adjusting mechanism 130R includes an inner pipe 121R in which a plurality of height adjusting holes 1211, 1212 ... Are formed, and an outer pipe 101R through which the inner pipe 121R is slidably inserted. , A cover 139 arranged at the end of the outer pipe 101R, a pin 132 arranged inside the cover 139 and inserted into the height adjusting holes 1211, 1212 ... By sliding in the horizontal direction, and a cover 139. It is provided with a pressing member 133 which is arranged inside the pipe and comes into surface contact with the inner pipe 121R by sliding in the horizontal direction integrally with the pin 132.

Preferably, an urging member 135 for urging the pin 132 and the pressing member 133 in the direction of the inner pipe 121R is further provided.

Preferably, the pin 132 is inserted into the height adjustment 1211, 1212 ..., And the member 134 for pressing the pressing member 133 against the inner pipe 121R is further provided.

Preferably, an operating lever 131 that is rotatable to move the pin 132 and the pressing member 133 in the horizontal direction is further provided.

Preferably, a slidable operating member 331 is further provided to move the pin 132 and the pressing member 133 in the horizontal direction.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown not by the above description but by the scope of claims, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

100: Walker 101L: Vertical frame 101R: Vertical frame 102L: Main connection frame 102R: Main connection frame 102X: Axis 103L: Front cover 103R: Front cover 105L: Sub connection frame 105R: Sub connection frame 106L: Sub connection frame 106R: Sub-connecting frame 107L: Front wheel 107R: Front wheel 108L: Rear wheel 108R: Rear wheel 109: Shaft 109R: Shaft 110: Seat surface seat 110A: Front part 110B: Rear part 110X: Grip portion 111L: Seat surface frame 111R: Seat surface frame 112 : Backrest 113L: Seat elevating frame 113R: Seat elevating frame 114R: Support member 115R: Shaft 116L: Hook 116R: Hook 117R: Ring 118R: Winding spring 119: Wire 120L: Handle part 120R: Handle part 121L: Upper frame 121R : Upper frame 122A: Hole 122L: Handle base 122R: Handle base 122W: Recessed portion 122X: Hole 122Y: Recessed portion 122Z: Contact portion 123L: Handle frame 123R: Handle frame 124L: Grip 124R: Grip 130L: Height adjustment mechanism 130R: Height adjustment mechanism 131: Operation lever 131X: Upper contact part 131Y: Lower contact part 132: Pin 133: Horizontal member 133Z: Front surface 134: Upper and lower member 135: Brake member 139: Adjustment case 140L: Brake mechanism 140R: Brake mechanism 141R: Brake lever 141W: Convex portion 141X: Slit 141Y: Convex portion 141Z: Contact portion 143L: Brake body 143R: Brake body 145R: Brake wire 147R: Rotating pin 148R: Cover 149R: Cover 150: Bag 160L: For tipping Cover 160R: Tipping cover 160X: Convex part 216L: Hook 216R: Hook 218R: Winding spring 224L: Grip 233: Horizontal member 233X: Slit 233Z: Front 235: Brake member 240L: Brake mechanism 241R: Brake lever 241X: Pin 241Y : Convex part 241Z: Contact part 314R: Hook 318R: Winding spring 331: Vertical lever 1012L: Front frame 1012R: Front frame 1041R: Front base 1042R: Rear base 1101: Rear 1141 R: Front rib 1142R: Rear rib 1161R: Recess 1162R: Hole 1211: Adjustment hole 2221R: First handle base 2221X: Slit 2221Y: Recess 2221Z: Contact portion 222RR: First handle base 2222X: Slit 2241: Central portion 2242: Rear

Claims (5)

It is a height adjustment mechanism
An inner pipe with multiple height adjustment holes and
The outer pipe through which the inner pipe is slidably inserted and the outer pipe
A cover placed at the end of the outer pipe and
A pin that is placed inside the cover and can be inserted into the height adjustment hole by sliding horizontally.
It is provided with a pressing member which is arranged inside the cover and comes into surface contact with the inner pipe by sliding in the horizontal direction integrally with the pin .
A slope for sliding the pressing member horizontally toward the inner panel by pushing up from below is formed on the rear portion of the pressing member, and the pressing member is formed upward from the rear end portion of the slope. vertical surface for pressing the forwardly Ru is formed, the height adjustment mechanism. The height adjusting mechanism according to claim 1, further comprising an urging member for urging the pin and the pressing member in the direction of the inner pipe. The height adjustment mechanism according to claim 1 or 2, further comprising a member for inserting the pin into the height adjustment and pressing the pressing member against the inner pipe. The height adjusting mechanism according to any one of claims 1 to 3, further comprising an operating lever that is rotatable to move the pin and the pressing member in the horizontal direction. The height adjusting mechanism according to any one of claims 1 to 3, further comprising a sliding operating member for moving the pin and the pressing member in the horizontal direction.

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