JPH0761352A - Running device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a traveling device in which a passenger can take a safe riding posture and can be folded and self-supported when stored. [Structure] Two or more supporting columns 2, 2 arranged substantially parallel to each other and a back section 4 provided between the supporting columns are provided, and a front wheel portion 95 is provided at the tip at the lower part of the supporting column. A long front leg portion 201 having a rear leg portion and a rear leg portion 220 having a rear wheel portion at the tip and shorter than the front leg portion can be fixed, and the front leg portion 201 and the rear leg portion 220 are different from each other. ,
It is configured to be able to open and close by approaching and separating from each other, and by approaching and closing these front and rear legs, by shortening the length of the front legs 201,
It has a self-sustaining structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling device which is driven by another person pushing from behind.

[0002]

2. Description of the Related Art Heretofore, as a typical one of such traveling devices, for example, a traveling device as a walking assist device that is run by being pushed by a "person who can walk if he grabs something" from behind, and an infant. Strollers to put on are known.

Such a traveling device generally has a seat portion on which a passenger rides, and a front leg portion and a rear leg portion provided with front wheels and rear wheels on the front end side below the seat portion. ing. The front leg and the rear leg are often set to have different lengths depending on the type and application of the traveling device.

For example, in a stroller or the like, generally, it is necessary to take care so that an infant or a traveling vehicle or the traveling device itself does not bend forward while traveling. In addition, it is preferable that the seat surface of the seat portion provided in the traveling device be large so that the seat can be stably seated. When such a point is emphasized, the front leg portion including the front wheel is made longer than the rear leg portion to which the rear wheel is attached.

On the other hand, in other traveling devices, emphasis is placed on preventing a posture change such that the traveling device itself falls backward, and that a person pushing the traveling device from behind hits his / her knee with the back plate of the device. It is said that points to prevent the In this case, the rear leg portion provided with the rear wheel is preferably set to be longer than the front leg portion to which the front wheel is attached. According to this structure, the distance between the person who pushes from the back and the back plate increases and the risk of the traveling device itself falling backward is reduced because the rear legs are extended.

[0006]

By the way, in such a traveling device, when the traveling device is not used, or when the vehicle is transferred to various transportation means such as a bus after being moved by the traveling device, etc. , It is necessary to make the traveling device small and carry it. Moreover, in this case, it may be difficult in some places to support the traveling device. Therefore, it is preferable that the traveling device can stand by itself.

However, as described above, in this type of traveling device, one of the front leg portion and the rear leg portion is longer than the other, so that when the legs are folded so as to approach each other, the traveling device The size in the front-rear direction is compact, but it is difficult to make it stand alone. Therefore, a traveling device having such a self-supporting function has not been known yet.

In view of the above points, the present invention enables stable traveling, and moreover, it can be folded when stored.
It is an object of the present invention to provide a traveling device that can stand on its own.

[0009]

According to the present invention, the above object is to provide two or more support columns arranged substantially parallel to each other, a back portion and a seat provided between the support columns, and the support column. Of the front leg portion and the rear leg portion, the front leg portion having a front wheel portion at the tip end and the rear leg portion having a rear wheel portion at the tip end. At least one is set to be longer than the other, and the front leg and the rear leg are configured to be opened and closed by relatively approaching and separating the front leg and the rear leg, and the front leg and the rear leg are brought close to each other. This is achieved by the traveling device configured to be self-sustaining by closing and closing the length of the longer leg of the front leg or the rear leg while closing.

Preferably, a wheel is fixed to the tip of either the front leg or the rear leg, whichever is set longer, via a bearing member, and the bearing member rotates together with the wheel at a fixing position with respect to the tip of the leg. The bearing member is configured to be movable, and the bearing member is rotated by a predetermined angle and stopped to rotate, whereby the length of the long leg portion is shortened.

Further, preferably, the front leg portion is set longer than the rear leg portion, and a front wheel portion fixed to the front leg portion via a bearing is rotated together with the bearing.

Alternatively, the rear leg portion is set to be longer than the front leg portion, and the rear leg portion fixed to the front leg portion via a bearing is rotated together with the bearing.

Further, preferably, an attachment member of a different type which is exchanged depending on the application can be fixed to the support column constituting the support column, and the fixing position of the support member is set in the extension direction of the support column. A fixing means is provided which is changeable along.

Preferably, an attachment member of a different type that can be exchanged depending on the application can be fixed to the back portion, and the fixing position of the attachment member can be changed along the extending direction of the back portion. Various fixing means are provided.

[0015]

According to the above construction, at least one of the front leg and the rear leg of the traveling device can be brought close to each other to be closed, and the longer leg can be shortened. As a result, the lengths of the front leg portion and the rear leg portion can be made uniform, and the weight of the traveling device does not lean backward.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the examples described below are suitable specific examples of the present invention, and therefore, various technically preferable limitations are given, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, the present invention is not limited to these modes.

FIG. 1 is a perspective view showing an outline of a main part of a traveling device used in an embodiment of the present invention. In the figure, in the case of this embodiment, the column 1 is composed of two columns 2 and 2 arranged substantially in parallel, and the column 2 is a back via a fixing portion 6 between them. The back panel 4 is fixed. That is, the support column 1 and the back panel 4 form a basic framework of the traveling device, and various accessory members are fixed to these as described later.

A front wheel portion 11 and a rear wheel portion 12 are attached to the lower portion of the column portion 1 by fixing the leg portions 7, 7, and these wheels can be used for traveling. There is.

As shown in FIG. 2, an attachment member of the traveling device is fixed to the support column 1 along the longitudinal direction thereof. In the figure, a column 2 that constitutes this column 1 has a curved portion whose upper portion is curved rearward. A handle 13 that is held by a person who pushes the traveling device from the rear is attached to the curved portion.

Below the curved portion of the pillar 2, an upper fixing portion 6 for fixing the back panel 4 shown in FIG. 1 is attached, and the lower fixing portion of the back panel 4 is attached. 6 is attached to the bottom of the column 2. In addition, the pillar 2
In the figure, slightly below the center, a fixing portion 14 for an armrest (described later) for allowing a person sitting on the traveling device to rest his elbow is attached.

A support portion 15 for supporting the seat portion of the traveling device is fixed to the lower side of the support column 2, and a leg portion 7 can be fixed near the lower end of the support column 2.

3 to 7 are views showing in detail an example of a fixing structure provided on each of the columns 2 of the column portion 1. In the example of FIG. 3, for example, a plurality of fixing elongated holes 21 are formed along the longitudinal direction of the column 2.

On the other hand, a hook 151 is provided at the tip of the supporting portion 15 such as a seat as an accessory member. Therefore, by inserting the hook 151 into the fixing hole 21 of the column 2 and shifting the hook 151 in the direction of the arrow, the support portion 15 is locked and fixed to the column 2.

Further, the supporting portion 15 as the accessory member
The position for fixing the can be changed by appropriately selecting the support hole 21 on the support side into which the hook 151 of the supporting portion 15 is inserted. That is, in the example of FIG.
Since a plurality of fixing holes 21 are formed in the column along the longitudinal direction of the column 2, it is possible to select a proper one from these fixing holes 21 and use it to obtain a desired (height) position. The support part 15 can be fixed.

In FIG. 4, a ring-shaped tip portion 152 is formed on the support portion 15 of the accessory member, and the ring-shaped tip portion 152 is inserted into the column 2. Then, the two fixing rings 1 in which the tips 151 are respectively passed through the columns 2 are attached.
54 and 154 (see FIG. 4B). These fixing rings 154 and 154 are provided with fixing screws, and by aligning the vertical positions of the ring-shaped tip portions 152 and tightening the screws of the fixing rings 154 and 154, the vertical direction of the column 2 can be improved. Can be fixed at the desired position.

The example of FIG. 5 is common to the example of FIG. 4 in that the support 15 of the attachment member has a ring-shaped tip, but in this case, the ring-shaped tip 153 has an inner periphery. Is
A fixing hole is provided such that the diameter becomes smaller as it goes deeper (FIG. 5 (A)). The fixing holes 153a and 1
53b is opened at the upper surface and the lower surface of the ring-shaped tip portion 153, respectively, and one or both of the wedge members 157 and 158 are driven and fixed through these openings as shown in FIG. 5B. .

6 and 7 show further different fixing means for the attachment member. As shown in FIG. 6A, the pillar 2 has a groove 161 formed along the outer periphery thereof. A plurality of these grooves 161 are formed along the longitudinal direction of the column 2, and any one of these grooves can be selected to provide the structure shown in FIG.
The fixing ring 162 shown in (B) can be attached.

As shown in the drawing, the fixing ring 162 is made of, for example, a metal ring, and its thickness is such that it can be tightly fitted in the groove 161 of the support column 2.
A part of the fixing ring 162 is separated so that the diameter of the ring can be increased, and the fixing ring 162 can be easily attached to the column 2. Then, as shown in FIG. 7, a fixing ring 162 is attached to the groove 161 of the column 2 so that the tip of the attachment portion 15 of the accessory member can be fixed.

That is, in this example, the mounting portion 158
4 is formed in a ring shape as in the examples of FIGS. 4 and 5, and the ring-shaped tip portion 158 can be inserted from above the column 2. Here, this tip portion 158 is shown in FIG.
As shown in (1), the lower side is expanded and has a step portion 158a in the middle.

As a result, the step portion 158 abuts on the fixing ring 162 mounted on the support column 2 and the mounting portion 15 is attached.
The movement in the direction of the arrow is restricted. Therefore, for example, when the attachment member is a seat portion described later, the weight acting in the arrow direction is supported by the support column 2 via the fixing ring 162.

Next, a preferred embodiment of the back panel as the back portion provided between the columns 2 and 2 will be described. As shown in FIG. 1, the back panel 4, which is the back portion, has a function of supporting the back of a person riding on the traveling apparatus of the present invention. Therefore, it is not limited to the panel-shaped one as shown in FIG. 1 or FIG. 8, and it is also possible to form it by stretching a cloth material or by tying a belt between the columns 2 and 2.

In FIG. 10, the back panel 4 is constructed by connecting two metal panels 41, 41 by hinges 42, 42 so that the substantially central portion thereof can be bent along the longitudinal direction. The hinge 42 provided on the bent portion 44,
As for 42, for example, a hidden hinge as shown in FIG. 9 is used. That is, the hinge 42 is composed of base portions 42a and 42b fixed to the side surfaces of the respective panels 41 and 41 facing the bent portions, and a connecting portion 42c connecting them.

Then, on the side surfaces of the respective panels 41, 41, there is formed a space in which the respective base portions 42a, 42b can be embedded, and as shown in FIG.
When the is opened, the hinges 42, 42 are completely hidden. Further, the back panel 4 is formed such that the opening direction thereof is the direction behind the person riding on the traveling device (see FIG. 1).

Further, as shown, the back panel 4 is slightly curved inward, as is the case with the back of a person riding a traveling device, and a large number of holes 46 are scattered on the panel surface. It is provided in. These holes 46 have an excellent design effect on the back panel located in the center of the traveling device, and, for example, these holes are used to form attachment portions for attaching the above-mentioned various accessory members. May be.

Next, examples of different kinds of accessory members applied to this traveling device will be described with reference to FIG. FIG. 11 is a system diagram showing the types of accessory members mounted on at least one of the columns 2 and 2 and the back panel 4, which are common components of the multi-purpose traveling device of the present embodiment.

By combining these different types of accessory members, for example, the walker of FIG. 12, the wheelchair of FIG. 13,
The care chair or the like in FIG. 14 can be configured. here,
The walker shown in FIG. 12 is a traveling device used by "a person who can walk by grasping something" among persons with physical disabilities. The walker is one structural example of the traveling device, and the present invention can be applied to other strollers and the like.

Here, the wheelchair shown in FIG. 13 is a "person who can stand up" among persons with physical disabilities, and the care chair in FIG. 14 is "a person who is able to stand" while sitting. Is a traveling device that is mainly used by people who can. These are different from the traveling device of the present invention in the configuration of the front leg portion and the rear wheel portion, but since they are traveling devices that can be configured by using components common to the walker, for convenience of understanding, explain. It should be noted that the present invention can be applied to these traveling devices if the front legs and the rear legs of the traveling devices are not shared with the traveling devices as shown in the drawing but have a configuration common to a walker described later.

In FIG. 11, the pillar 2 has a reflector unit 61, a turntable 63, and a safety belt 65.
Can be attached. Posts 2 of these accessories
For example, the above-mentioned means shown in FIGS. 3 to 7 are preferably used as the attachment means for the above-mentioned means, and these means are provided directly to each member or via an attachment member not shown.

The reflector unit 61 is equipped with a reflecting member (not shown) in consideration of safety at night. The turntable 63 is used by a person riding on the traveling device to place small articles and the like, and is rotatably attached to, for example, the column 2. The safety belt 65 includes the columns 2 and 2.
It is installed so as to be bridged between them to ensure the safety of the person riding on the traveling device.

Reference numerals 71 and 73 are cushions used in the wheelchair and the care chair of FIGS. 13 and 14, respectively. These cushions 71 and 73 are adapted to be fixed to the support column 2 via a mounting member (see FIGS. 3 to 7), and the headrest 75 is further provided on the upper portion of the cushion 71.
It can also be configured to be removable.

Further, the cushion 73 is formed to be bendable in correspondence with the structure in which the back panel 4 is bent. Further, on the front surface of the cushion 73, another cushion 76 having a thick cushion material can be mounted.

In FIG. 11, sheets 81, 83, 87
Form the seat of the traveling device. The seat 81 is applied to the walker in FIG. 12, and is fixed to the support column 2 via a mounting member. The seat 83 is a nursing care sheet applied to the nursing care chair of FIG. 14, and when the nursing care chair is used by a person who especially needs nursing care, a shower seat 84 having a large number of through holes formed on the seat surface, A hole is provided in a substantially central portion of the seat surface so that the toilet seat 85 used together with the toilet pot 86 can be appropriately replaced and mounted.

Further, the sheet 87 is provided with a bent portion for folding the sheet 87 in the vicinity of the center thereof. As a result, when the traveling device is formed as a wheelchair, as will be described later, when the vehicle body is folded, it can be bent together.

A seat cushion 88 can be further mounted on the seat 87. Then, each of these sheets corresponds to the support member 2 of the mounting member (see FIG. 2).
By shifting the fixed position with respect to the longitudinal direction of the column 2, the height can be adjusted according to the physique, posture, etc. of the person riding the traveling device.

Further, as the leg portions for attaching the wheels of the traveling device, different leg portions are selected according to each type shown in FIGS. In FIG. 11, a leg portion 91 is formed by integrally forming a front leg portion and a rear leg portion. By inserting the lower end side of the column 2 into a hole (not shown) provided at the center of the leg portion 91, the column is formed. Attached to 2.

In this way, the front wheel portion 95 is attached to the front leg portion of the attached leg portion 91, and the wheel cover 9 is attached to the rear leg portion.
The wheelchair shown in FIG. 13 can be formed by attaching the rear wheel portion including the tire 8, the tire 96, and the hand rim 99.

Here, FIG. 15 is a schematic sectional view of the wheelchair of FIG. 13 when viewed from the rear, and in the seat portion of this chair, both ends of the folding sheet 87 are fixed to the columns 2 and 2. There is. The folding sheet 87 has a bending portion 87a that can be bent at the center as shown in the figure. Two panels 87b and 87c with this bent portion 87a as a boundary
The lower surfaces of are supported by support arms 151 and 152, respectively.

Moreover, the lower ends 151c and 151d of the support arms 151 and 152 in the drawing are the support columns 2 and 5, respectively.
It is fixed rotatably with respect to 2. The upper ends of the support arms 151 and 152 are pivotally attached to each other so that they can rotate with each other, and the upper ends thereof are, depending on the shape of the lower surface of the folding sheet 87, respectively, as shown in the drawing. The shape is in close contact.

Therefore, when the folding seat 87 is bent in the direction of the arrow and is pivoted in the direction of the arrow with the supporting arms 151 and 152 connected to each other as fulcrums, the seat portion of the wheelchair is folded and the prop Two
Since the two can be brought close together and the overall size is compact, it is convenient for storage and transportation.

Referring to FIG. 11, an independent front leg portion 92 and rear leg portions 93 and 94 to be combined therewith are shown as the multiple leg portions of the multipurpose traveling apparatus. Of these, by combining the front leg portion 92 and the rear leg portion 93, the leg portion of the care chair of FIG. 14 can be configured.

Further, by combining the front leg portion 92 and the rear leg portion 94, the leg portion of the wheelchair shown in FIG. 13 can be constructed. As described above, in the wheelchair and the care chair, the front leg portion 92 of the leg portions is common in terms of component structure.

Further, as another accessory member, FIG. 11 shows a plurality of armrest members of different types. Almost L
The character-shaped armrest member 110 is mainly applied to a care chair. In addition, the R-shaped armrest member 111 is similar to that shown in FIGS.
As shown in 4, it can be commonly used for wheelchairs and nursing chairs. Therefore, in the wheelchair and the nursing care chair, the armrest member 111 as an accessory member is common.

At this time, a plurality of holes are formed on the front surface of the armrest member 111 as shown in FIG. 11, and these arbitrary holes can be selected to set the small-diameter portion of the auxiliary grip 116. It can be inserted and fixed. Further, a fan-shaped side cover 113 as illustrated can be attached to the outer side surface of the R-shaped armrest member 111.

On the outer side surface of the side cover 113, a side basket formed as shown in the drawing with metal or resin stitches can be fixed. Further, the armrest member 111 or 110 attached to both the columns 2 and 2 has a table 115 between the two armrests.
It is designed so that it can be fixed by applying it.

Further, near the upper end of the column 2, a handle for a person who pushes the traveling device from behind is attached. Although this point has already been described with reference to FIG. 2, such a handle may have a shape and configuration such as the handles 121, 123, and 125 shown in FIG.

The handle 121 is suitable as a walker hand push handle as shown in FIG. In addition, a handle 125 that is separately fixed to the rear side of each of the columns 2 and 2
Are suitable for wheelchairs and care chairs, as shown in FIGS. In this way, each pillar 2, 2
Different types of handles can be attached according to the application.

Further, as shown in FIG. 11, a shopping bag 133 can be fixed to the columns 2 and 2 so as to be positioned behind the back portion 4. Alternatively, the basket 131 may be directly fixed to the back panel 4.

As described above, various attachment members of different types can be attached to the columns 2 and 2. As a result, the prop 2, the back panel 4, or a part of various accessory parts can be used in common to configure different types of traveling devices such as a wheelchair, a care chair, and a walker.

This makes it possible to reduce the manufacturing cost of the product because the parts are shared. Further, since various accessory members are attached to a common frame (support), the attachment structure and the like are standardized. For this,
Even if different types of accessory parts are used, there is a common point in terms of shape, and a unified design can be applied, resulting in a unique design effect.

That is, even if the traveling devices have different uses, the back panel 4 and the columns 2, which are particularly attractive in appearance,
Alternatively, the design is unified in the armrest members, legs, etc. that are partly common.

FIG. 16 shows how the walker 1, which is one of the traveling devices of this embodiment, is used.
Here, the front leg portion 201 and the rear leg portion 220 that form the leg portion 7
Is composed of a synthetic resin frame as shown in the drawing, and is extremely lightweight.

In the figure, a person who pushes the walker 1 from behind grasps the handle 13 and advances the walker 1 forward. At this time, the seat 81 is horizontal as shown in the figure so that a person riding the walker 1 can sit down.

The walker 1 can be folded as shown in FIG. 17 when not in use. That is, the seat 81 can be folded by rotating the free end side upward as shown by the arrow by the rotating function provided near the tip of the mounting portion 15.

18 to 20 show the front leg portion 201 of the leg portion 7.
FIG. 7 is an enlarged view showing an opening / closing structure of a rear leg 220. As shown in the enlarged view of FIG. 18, the front leg portion 201 and the rear leg portion 220 are rotatably attached to the attachment member 15 fixed to the column 2 via bearing members 210 and 230. As shown in the plan view of FIG. 20, these bearing members 210 and 230 are cut in the vicinity of the center, and at the cutout portions, the thinly formed end portion 202 of the front leg portion 201 and the thinly formed rear leg portion 220 are formed. The end portions 221 thus formed are sandwiched and supported.

On the rear leg side of the mounting member 15,
A guide hole 15a formed vertically as shown in FIG.
Is formed, and the opening / closing rod 225 is formed in the guide hole 15a.
Has been inserted. One end of the opening / closing rod 225 is rotatably fixed to a bearing portion integrally formed with the rear leg portion 220, and the other end side thereof extends upward along the extending direction of the column 2.

Further, as shown in FIGS. 19 and 20,
The front leg 201 and the rear leg 220 have front and rear shafts 20 and
Disk-shaped rotating body 20 connected by 1a and 220a
3,223 are provided. The rotating bodies 203 and 223 are connected to each other by a link 205.

As a result, when the open / close rod 225 is pulled upward, the rear leg 220 moves in the direction of the arrow shown in FIG. 18, and this is transmitted to the rotary body 203 via the rotary body 223 and the link 205, so that the front leg 201 moves. Figure 18 Move in the direction of the arrow. Therefore, the front leg 201 and the rear leg 220
Will move in the closing direction. Further, by pressing down the opening / closing rod 225, the front leg portion 201 and the rear leg portion 220 move in the opening direction by the operation reverse to the above.

At this time, as shown in FIG. 18, step portions 211 and 23 formed on the upper portions of the bearing members 210 and 230, respectively.
By contacting the upper end portions of the front leg portion 201 and the rear leg portion 220 with respect to 1, the opening degrees of the front leg portion 201 and the rear leg portion 220 are regulated.

On the other hand, the front leg 201 and the rear leg 220 constituting the leg 7 are closed as shown in FIG. Further, the front wheel portion 95 and the bearing portion 331 thereof are rotated as illustrated via the connecting portion 208 of the front wheel portion 95 to the front leg portion 201 and the support shaft 301. Here, as shown in FIG. 21A, in this embodiment, the front leg portion 201 and the rear leg portion 220 are formed.
The length, including the wheels, is different. That is, the front leg 201 side is set longer than the rear leg 220 side.

With this structure, it is possible to prevent a person sitting on the seat 81 from leaning forward and easily falling. However, with such a configuration, when the front leg portion 201 and the rear leg portion 220 are closed in the state as they are, the lengths of the both leg portions are different, which makes it difficult to stand by itself.

That is, when the front leg portion 201 and the rear leg portion 220 are closed, the front leg portion 201 is longer than the entire length of the rear leg portion 220 unless the front wheel portion 95 is rotated as shown in FIG. 21 (B). turn into. In this state, the walker 1 tilts backward and falls.

Therefore, with the structure as described below, the front wheel portion 95 and the bearing member 331 are rotated and made to slightly bend, so that the length of the front leg portion 201 side including the front wheel portion 95 is shortened, and the rear leg portion. The length on the 220 side is made to substantially match.

Further, as shown in FIG. 21C, when this standing state is viewed from below, with respect to the rear wheel 97,
The front wheels 95 are crossed at a predetermined angle. Therefore, even if the wheels 95 and 97 are close to each other and come into contact with each other, they can stand by themselves.

Specifically, the rotation and rotation stopping mechanism of the front wheel portion 95 and the bearing member 331 are configured as shown in FIGS. 22 and 23, for example. Figure 2
2 is a sectional view of the rotation and rotation stop mechanism of the front wheel 95, and FIG. 23 is an exploded perspective view showing the structure. In these drawings, the brake 300 is connected to the caster connecting portion 208, and has a cylindrical main body 305 provided around the support shaft 301 of the caster and a lever 303 for rotating the main body 305. is doing.

A plurality of pressing pieces 3 are provided inside the main body 305.
08 is formed. The pressing piece 308 has a base end fixed to the inside of the ring-shaped peripheral edge 302 of the main body 305. The tip side, which is the free end of the pressing piece 308, extends so as to gradually thicken around the support shaft 301 formed at the upper end of the bearing member 331. A groove 306 is provided between the peripheral portion 302 and the pressing piece 308.
Three pins 309, which are integrally erected on a disk portion 312 fixed around the support shaft 301, are fitted into the inside of 06.

Therefore, in the state of FIG. 22A, since the pressing piece 308 is separated from the support shaft 301, this support shaft 3
01 is free and can rotate. Next, when the lever 303 is rotated in the direction of the arrow, FIG.
The pin 309 relatively moves in the groove 306 to the position shown in FIG.

Here, since the groove 306 is narrow on the moving side according to the shape of the pressing piece 308, the pin 30
9 pushes the tip end side of the pressing piece 308 around the support shaft 301 as it moves in the groove 306. This allows
The support shaft 301 cannot rotate, and the front wheel portion 95 stops rotating at the position shown in FIG.

As described above, according to the walker 1 of this embodiment, when the walker 1 is used for traveling,
As shown in FIG. 16, the person who sits on the seat 81 can naturally take a slightly inclined rearward posture and can get on stably.

Moreover, the front leg portion 201 of the walker 1
And the rear leg portion 220 are brought close to each other and folded, and the front wheel portion 9
By rotating 5, the front leg 201 and the rear leg 220 can have the same length. This allows the walker 1 to be self-sustaining and storable.

24 and 25 show another example of the rotation stopping mechanism. Caster connection portion 208 of the front leg portion 201
A thick pin member 351 formed on the upper surface of the bearing member 331 is inserted into the lower part from below. An uneven portion 352 is integrally provided around the base of the pin member 351. On the other hand, a lock pin 355 is slidably attached to the outer peripheral surface of the caster connecting portion 208 in the vertical direction in the figure.

Therefore, as shown in FIG. 25, when the lock pin 355 is slid to the information, the caster connecting portion 208 is rotatable around the pin member 351. When the lock pin 355 is lowered as shown in FIG. 25 (B), the tip of the lock pin 355 has an uneven portion 35.
The caster 208 may be stopped from rotating around the pin member 351 in the second step 353.

The present invention is not limited to the above embodiment. In particular, the strut portion may be composed of more than two strut members as in the embodiment. For the back panel, various structures for fixing an attachment member can be adopted in addition to the structure for making holes as in the embodiment. Further, the traveling device of the present invention may be configured as a stroller or the like that can stand by itself in addition to the illustrated one.

Further, in the walker of the above-mentioned embodiment, the front leg portion is formed longer than the rear leg portion, but conversely, the rear leg portion may be formed longer than the front leg portion. In this case, by making the wheel portion of the rear leg portion formed long so as to be rotatable, it becomes possible to stand by itself.

In the case of such a structure, the distance between the person pushing from the rear and the back plate is increased and the risk of the traveling device itself falling backward is reduced because the rear legs are extended. . Therefore, even if the traveling device is the walker of the above-described embodiment, it is preferable to configure the rear leg portion to be longer than the front leg portion when such performance is emphasized.

[0085]

As described above, according to the present invention, it is possible to provide a traveling device which can be stably driven, and can be folded when stored to be stably self-supporting. can do.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a main part of an embodiment of a traveling device to which the present invention is applied.

FIG. 2 is an explanatory view showing a fixing structure of an accessory member of the traveling device of FIG.

FIG. 3 is an explanatory view showing a fixing structure of an accessory member of the traveling device of FIG.

FIG. 4 is an explanatory view showing a fixing structure of an accessory member of the traveling device of FIG.

5 is an explanatory view showing a fixing structure of an accessory member of the traveling apparatus of FIG.

FIG. 6 is an explanatory view showing a fixing structure of an accessory member of the traveling device of FIG. 1.

FIG. 7 is an explanatory view showing a fixing structure of an accessory member of the traveling device of FIG.

8 is a perspective view showing an example of a bent structure of a back panel of the traveling device of FIG.

9 is a perspective view showing a main part of the bent structure of FIG.

10 is a schematic perspective view showing an example of a back panel of the traveling device shown in FIG.

FIG. 11 is a system diagram showing types of accessory members used in the traveling apparatus of the embodiment of the present invention.

FIG. 12 is a perspective view showing a walker as an example of the configuration of the traveling apparatus of the embodiment of the present invention.

FIG. 13 is a perspective view showing a wheelchair as an example of the configuration of the multi-purpose traveling device.

FIG. 14 is a perspective view showing a care chair as an example of the configuration of the multi-purpose traveling device.

FIG. 15 is a front sectional view showing the structure of the main part of the wheelchair shown in FIG.

FIG. 16 is a side view showing a use state of the walker shown in FIG. 12.

FIG. 17 is a side view showing a state in which the walker of FIG. 12 is folded to be self-supporting.

FIG. 18 is a cross-sectional view of essential parts showing the opening / closing structure of the legs of the walker shown in FIG. 12;

FIG. 19 is a side view of the essential parts showing the opening / closing structure of the legs of the walker shown in FIG. 12;

20 is a plan view of relevant parts showing the opening / closing structure of the legs of the walker shown in FIG. 12;

FIG. 21 is an explanatory diagram showing an example of adjusting the lengths of the front leg and the rear leg for making the walker of FIG. 12 self-supporting.

FIG. 22 is a cross-sectional view of the essential parts showing the structure of the brake of the wheel part of the walker of FIG. 12.

23 is an exploded perspective view showing the structure of a brake for the wheel portion of the walker shown in FIG.

24 is an exploded perspective view showing another example of the structure of the brake of the wheel part of the walker in FIG. 12. FIG.

FIG. 25 is a cross-sectional view of essential parts showing another example of the structure of the brake for the wheel part of the walker shown in FIG. 12.

[Explanation of symbols]

 1 Traveling device 2 Support 4 Back panel 7 (91) Leg 15 Mounting part 201 Front leg 220 Rear leg 300 Brake device

Claims (6)

[Claims] 1. Two or more support columns arranged substantially parallel to each other, a back section and a seat section provided between the support sections, a lower section of the support section, and a front wheel section at the tip. Has a front leg portion and a rear leg portion having a rear wheel portion at the tip, and at least one of the front leg portion and the rear leg portion is set to be longer than the other. The rear part and the rear part are configured to be openable and closable by relatively approaching and separating the parts, and the front leg part and the rear leg part are brought close to each other and closed, and at the same time, the front leg part or the rear leg part is closed. A traveling device characterized in that it is configured to be self-sustaining by reducing the length of the longer one of the legs. 2. A wheel is fixed to the front end of the front leg or the rear leg, whichever is set longer, through a bearing member, and the bearing member rotates together with the wheel at a fixing position with respect to the front end of the leg. It is possible, and by rotating the bearing member by a predetermined angle and stopping the rotation, the entire length of the long leg portion is shortened. The traveling device according to 1. 3. The front leg portion is set to be longer than the rear leg portion, and the front wheel portion fixed to the front leg portion via a bearing,
The traveling device according to claim 2, wherein the traveling device is configured to rotate together with the bearing. 4. The rear leg portion is set to be longer than the front leg portion, and the rear leg portion fixed to the front leg portion via a bearing,
The traveling device according to claim 2, wherein the traveling device is configured to rotate together with the bearing. 5. An attachment member of a different type that can be exchanged depending on the application can be fixed to the support pillar that constitutes the support pillar portion, and the fixing position of the accessory member can be set along the extending direction of the support pillar. The traveling device according to claim 1, further comprising a changeable fixing unit. 6. A fixing means capable of fixing an attachment member of a different type to be exchanged according to a use to the back portion, and changing a fixing position of the attachment member along a direction in which the back portion extends. The traveling device according to claim 1, further comprising: