JPH0316656Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a walking vehicle used by sick people who are on the way to recovery for the purpose of walking training.

(Prior art) Conventionally, some of these types of walking vehicles have been able to be completely folded in order to save space during storage or to significantly reduce packaging and transportation costs during transportation. Some have done so.
For example, as disclosed in Japanese Utility Model Publication No. 61-6926, the frame is composed of left and right side frames and a front stay that connects the lower front ends of these side frames via a vertical shaft. The relative position of the upper body support is determined by inserting the legs of the upper body support into the guide tubes installed at the top of both side frames, and the legs of the upper body support are horizontal to the upper body support. The frame and upper body support are both pivotally connected via a directional axis and are foldable.

(Problem to be solved by the invention) However, since the conventional foldable walking vehicle of this type has the above-mentioned configuration, the left side frame and the right side frame are connected through their respective vertical axes. The operation of rotating both side frames separately is cumbersome, it takes time to fold, and it takes a certain amount of time to rotate both side frames. The problem was that it required a large space.

Furthermore, the positional relationship between the upper body support and both side frames is determined by inserting the legs provided on the upper body support into the guide tubes installed on the upper parts of both side frames. Therefore, unless the upper body support is removed from the frame, both side frames cannot be rotated. Therefore, there was a problem in that it could not be folded with the upper body support attached. Furthermore, when assembling, hold each frame so that both side frames are parallel and perpendicular to the front stay, and in this state insert and fix the legs of the upper body support into the guide tube. However, since both side frames are rotatable, it is difficult and complicated to insert the legs into the guide tube by one person.

Furthermore, such a collapsible walking vehicle has both side frames that can be rotated and folded separately, resulting in a complicated structure and an increase in manufacturing costs.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to quickly and easily place the side frames in a vertically stacked state with one operation, without having to rotate each side frame separately. To provide a foldable walking vehicle and to simplify its structure.

(Means for Solving the Problems) In order to solve the above problems, the means taken by the present invention are as follows: The height of the upper body support 60 is adjusted by the height adjustment part 20 of the support leg part 2. In the foldable walking vehicle 1, the support leg portion 2 is attached to the rear strut body 40 on the upper part of the front strut body 10, which has a sliding portion 11 at the base end and a height adjustment portion 20 at the tip end. One end is pivotally connected, and the guide part 51
The other end of the rear strut body 40 is pivotally attached to the edge of the base frame body 50 having The gist of the foldable walking vehicle 1 is that the legs 63 which are removably pivoted can be removably locked by the height adjustment section 20.

(Function of the invention) The invention works as follows by means of the above-mentioned means.

The front strut body 10, the rear strut body 40, and the base frame body 50 that constitute the support leg portion 2 function as the respective sides of a triangle. That is, the front strut body 10 and the rear strut body 40 are the oblique sides of the triangle, and the base frame body 50 is the bottom side. Therefore, by sliding the sliding part 11 provided at the base end of the front strut body 10, which is one oblique side, on the guide part 51 of the base frame body 50, which is the bottom side, via the pivot 71 provided at the upper part thereof, The other oblique side, the rear strut body 40, rotates via a pivot shaft 72 provided at the edge of the base frame body 50. As a result, each side of this triangle is folded over, and each support body corresponding to each side is folded in a vertically overlapping state.

Further, the upper body support 60 is removable from the height adjustment section 20, and the legs 63 provided on the upper body support 60
rotates and folds via the horizontal axis 62.

(Example) Below, the means of the present invention will be explained according to a specific example shown in the drawings. FIG. 1 shows a perspective view of a foldable walking vehicle 1 according to the present invention.

In this figure, 2 is a walking vehicle 1 according to the present invention.
60 is an upper body support.

Reference numeral 10 denotes a front strut body constituting the support leg portion 2, and the front strut body 10 includes a sliding portion 11, a height adjustment portion 20, a reinforcing portion 30, and two vertical stay tubes 15.
It is composed of. As shown in FIG. 2, the sliding section 11 is composed of a pair of left and right sliding tubes 12 and a horizontal stay tube 14. It is formed so as to fit loosely into the inner periphery of both ends. This sliding tube 12 has a nut 16 fixed to its outer wall by welding, and a push screw 81 with a knob that is screwed into this nut 16 is formed so as to penetrate through the wall of the sliding tube 12. . In addition, near both side edges of the horizontal stay tube 14, there are two vertical stay tubes 1 whose upper ends are open.
The lower ends of the vertical stay tubes 5 are fixed by welding, and these vertical stay tubes 15 are formed on the same plane and perpendicular to the horizontal stay tubes 14. The height adjustment section 20 is configured to adjust the height of the two vertical stay tubes 1.
A nut is fixed to each of the upper outer walls of 5 by welding, and a push screw 8 with a knob is screwed into the nut.
2 is formed to penetrate the wall of the vertical stay tube 15. The reinforcing part 30 is constructed by fixing a shaft pipe 71 serving as a pivot to a reinforcing pipe 31 which is welded to the outer periphery of each of the two vertical stay pipes 15. It is formed by constructing a front stay pipe 32.

Reference numeral 40 denotes a rear strut body constituting the support leg portion 2, which is formed of a pair of left and right stay tubes so that a portion of the lower end thereof is vertical. After this, each of the left and right pillar bodies 40 has a caster 4 fixed to its lower end.
1 is fixed, and its upper end is rotatably connected to the shaft tube 71 of the reinforcing portion 30 with bolts and nuts.

Reference numeral 50 denotes a base frame body constituting the support leg portion 2, which includes a guide portion 51, a caster portion 52, and a stopper 53.
It is formed into a U-shape by a stay tube with an outer circumference slightly thinner than the inner circumference of the sliding tube 12. The guide portion 51 serves as a rail on which the sliding portion 11 slides, and in this embodiment, it is the stay tube itself of the straight portions on both sides of the base frame 50. The caster part 52 has short tubes 5 inside the two corners of the U-shaped stay tube constituting the base frame 50.
4 are vertically fixed by welding, and casters 55 that can be changed in the axial direction are fixed to the short tubes 54, respectively. The stopper 53 is provided on the short tube 5 of the base frame 50 in order to prevent the sliding part 11 from sliding too much.
These are ring tubes fixed near 4.

The sliding tubes 12 of the sliding portion 11 are loosely fitted into the straight portions on both sides of the base frame 50 configured as described above, that is, the guide portions 51, and the base frame 50 is slidably fitted. At both opening side edges of
It is pivoted for free rotation.

In this embodiment, the sliding tube 12 and the guide section 51 are formed of a stay tube, but a wheel is used as the sliding tube 12, and a groove is provided as the guide section 51 to guide the wheel. It may be. In other words, any configuration that allows the sliding portion 11 to smoothly slide on the guide portion 51 is sufficient. Further, in the rear strut body 40 of this embodiment, the left and right stay tubes are formed separately, but the left and right stay tubes may be formed integrally, for example, in a U-shape.

Reference numeral 60 denotes an upper body support that constitutes the present invention, and the upper body support 60 includes an upper body support part 61 and two legs 63 that loosely fit into a horizontal axis tube 62 fixed to the lower part of the upper body support part 61.
The legs 63 can be locked with the height adjustment section 20. The upper body support section 61 includes a U-shaped tube 64, a pad section 65 formed in the same shape on the upper surface of the U-shaped tube 64, and two horizontal shaft tubes fixed to both lower straight portions of the U-shaped tube 64, respectively. It consists of 62. The inner circumference of the horizontal shaft tube 62 is formed to be almost the same as the inner circumference of the vertical stay tube 15, and a nut is fixed to the outer wall by welding. A push screw 83 with a knob to be engaged therewith is formed to pass through the wall of the horizontal shaft tube 62. The legs 63 loosely fitted to the horizontal shaft tube 62 fit into the inner periphery of the vertical stay tube 15, and when fitted in this way, the legs 63 are arranged so that the upper body support 60 becomes horizontal with respect to the ground. It is formed.

The usage method, folding procedure, and assembly procedure of the walking vehicle 1 according to this embodiment configured as above will be described below.

This walking vehicle 1 locks the two legs 63 pivotally connected to the upper body holder 60 by adjusting the height of the upper body holder 60 according to one's height and tightening the push screw 82 with a knob. This allows the upper body support 60 to be fixed horizontally to the ground at an appropriate height, and is used for walking training in this state.
The procedure for folding the equipment will be explained according to FIGS.
is loosened to remove the upper body support 60 and the two legs 63 from the support leg section 2. Then, loosen the push screw 83 with a knob on the upper body support 60, rotate the two legs 63 through the horizontal axis tube 62, and attach the upper body support 60 to the upper body support 60.
Fold inside 0.

Next, loosen the push screw 81 with a knob provided on the sliding part 11, hold the vertical stay tube 15, and pull it to the right. At this time, the sliding part 11 is connected to the guide part (5) (1)
The front column body 10 slides to the right, and the front column body 10
At the same time, the rear support 40 rotates via pivots 72 provided at both edges of the base frame 50 on the opening side. Therefore, when the vertical stay tube 15 is pulled all the way to the right, the angle formed by the rear strut body 40 and the base frame body 50 becomes almost zero, and the support leg portion 2 is The frame bodies 50 are folded in such a manner that they overlap vertically.

In addition, in this description, the upper body support 60 is referred to as the leg 6.
3, but since the upper body support 60 is locked only by the height adjustment part 20 of the front support 10, when the front support 10 rotates, the upper body support 60 also rotates. Therefore, it can be folded even with the upper body support 60 attached.

When assembling, by pulling up the front stay tube 32 of the reinforcing part 30, the sliding part 11
slides on the guide portion 51 and the front strut body 10 follows this.
and the rear strut body 40 is raised. At this time, a stopper 53 is provided to prevent the sliding portion 11 from colliding with and destroying the short tube 54 of the caster portion 52 provided on the base frame 50. The front stay tube 32 is raised until the sliding part 11 comes into contact with this stopper 53, and at that position, the knob-equipped push screw 81 is tightened to fix the front strut body 10.

Next, loosen the push screw 83 with a knob on the upper body support 60, rotate the leg 63 via the horizontal axis tube 62, and
The push screw 83 with a knob is tightened and fixed at a position where the legs 63 are parallel and the axis thereof is perpendicular to the upper body support part 61. By fitting this fixed leg 63 into the height adjustment part 20 of the front strut 10 and locking it at an appropriate height by tightening the push screw 82 with a knob, the upper body support 60 is adjusted to an appropriate height. It is fixed in place.

(Effects of the invention) As described above, the foldable walking vehicle according to the invention has the advantage of pulling the horizontal stay tube of the front strut body, compared to the conventional system which rotates both side frames separately. It can be folded easily and quickly with just a few movements. In addition, since the folding method is vertical folding, it has the advantage of being able to be folded even in narrow spaces.

Note that since the upper body support is locked only by the height adjustment portion of the front strut, when the front support rotates, the upper body support also rotates. Therefore, even when the upper body support is attached to the support legs, it can be folded, and it is extremely convenient without being bulky when moving slowly without completely folding it.

In addition, when assembling, in the conventional folding method, the legs provided on the upper body holder are inserted into the guide tubes installed at the top of both side frames, and the upper body holder and both sides are assembled. Because the positional relationship of the frame is determined, it was difficult for one person to insert the legs, but with this invention, the width between the height adjustment parts, which is the side where the legs are inserted, is constant, so only one person can insert the legs. However, it has the effect that it can be easily inserted and complexity during assembly is eliminated.

Furthermore, the foldable walking vehicle according to the present invention has a simpler structure and can reduce manufacturing costs compared to conventional folding walking vehicles in which both side frames can be rotated and folded separately. It has this effect.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a partial sectional view showing the structure of the sliding part, FIG. 3 is a bottom view showing the folding procedure of the upper body support, and FIGS. 4 and 5 are right side views showing the folding procedure of the support leg. Explanation of symbols, 1...Walking vehicle according to the present invention, 2...
...Support leg portion, 10...Front support body, 11...Sliding portion, 12...Sliding tube, 13...Support member, 14...
... Horizontal stay pipe, 15 ... Vertical stay pipe, 16 ... Nut, 20 ... Height adjustment section, 30 ... Reinforcement section, 3
DESCRIPTION OF SYMBOLS 1... Reinforcement pipe, 32... Front stay tube, 40... Rear strut body, 41... Shaft fixed caster, 50... Base frame body, 51... Guide part, 52... Caster part,
53... Stopper, 54... Short pipe, 55... Axial direction convertible caster, 60... Upper body support, 6
1... Upper body support part, 62... Horizontal axis tube, 63...
Leg, 64... U-shaped tube, 65... Part part, 71,
72... Pivot, 81, 82, 83... Push screw with knob.

Claims (1)

[Scope of utility model registration request] A foldable walking vehicle in which the height of the upper body support can be adjusted by a height adjustment section of a support leg, wherein the support leg has a sliding section at the base end and a height adjustment section at the tip. One end of the rear strut body is pivotally attached to the upper part of the front strut body having a guide portion, the other end of the rear strut body is pivotally attached to an edge of a base frame body having a guide portion, and the sliding portion is connected to the guide portion. 1. A foldable walking vehicle, characterized in that the legs are configured to be slidable on the upper body holder, and the legs are removably pivoted to the upper body support and can be removably locked on the height adjustment portion.