JP6846799B2 - Walking car - Google Patents

Description

The present invention relates to a pedestrian vehicle, and more particularly to a pedestrian vehicle in which a chest support pad is swung by a drive motor and a belt connected to the chest support pad applies attractive force to a pedestrian's foot to promote walking. is there.

Currently, various walking support devices have been commercialized in order to support independent walking of elderly people with weak lower limbs (Non-Patent Document 1). However, many of the walking support devices developed so far are expensive but not easy to use, and therefore, none of them promote the walking motivation of elderly users.

Therefore, the inventors of the present application prototyped a walking vehicle 101 having a chest support pad 130 with a one-degree-of-freedom free rotation mechanism shown in FIG. 7A, and quantitatively evaluated the walking promoting effect by an engineering method. .. When the user walks using the developed walking vehicle 101, the rotation of the chest support pad 130 naturally pulls out the swing of the user's waist, and the user pulls the leg through the belt 138 to improve the walking motivation. ..

FIG. 7B shows a user moving from a wheelchair to a walking vehicle 101, and FIG. 7C shows a state in which the walking vehicle 101 supports the body with assistance.

"Evaluation of walking promotion effect of a walking vehicle having a chest support pad with a rotating mechanism" Huang Ken, etc. Japan Society of Mechanical Engineers Robotics and Mechatronics Lecture '16 Lecture Paper CD-ROM 2A2-02A3, 2016 (Yokohama June 8-11)

However, the conventional rotation of the chest support pad is a passive mechanism, and there is a problem that it cannot be used by elderly people who cannot step because their motivation to walk decreases due to illness or aging.

The pedestrian vehicle according to the present invention was conceived in view of the above problems, and provides a pedestrian vehicle capable of promoting walking and motivation to walk if there is no severe physical gait disorder. Is.

More specifically, the walking vehicle according to the present invention
Dolly 10 and
The frame 12 fixed to the dolly and
An arm 14 pivotally supported on the frame so as to swing up and down,
A horizontal bar 18 horizontally fixed to the arm,
A tilt plate 20 whose upper side is pivotally supported by swinging the horizontal bar as a swing shaft 22 and
An angle adjusting rod 24 that projects and supports the lower part of the tilt plate from the arm,
A bearing member 28 fixed to the tilt plate 20 and forming a rotation axis parallel to the tilt plate 20 and perpendicular to the horizontal bar 18.
The drive shaft 30 inserted in the bearing member and
A drive motor 32 fixed to the end of the drive shaft 30 and reciprocating the drive shaft,
A chest support pad 16 fixed to the drive shaft 30 and
Auxiliary belt 38 fixed to both ends of the chest support pad and wrapped around the back of the user's thighs 38
It is characterized by having.

The walking vehicle according to the present invention has a chest support pad arranged on a frame provided on the trolley and an auxiliary belt, so that it has a lift function capable of changing the posture from a sitting position to a standing position in a wheelchair or a bed, and is safe. It can assist stable walking.

In addition, a drive-type rotation mechanism attached to the back of the chest support pad naturally pulls out the swing of the user's upper body by rotating the chest support pad with a drive motor while walking, and the belt attached to the waist and thigh is pulled out. By pulling the user's lower limbs through it, the effect of stimulating the user's willingness to walk is aimed at.

As a result, if a walking vehicle with a chest support pad using an active drive mechanism is realized, it can be used by elderly people who cannot walk even if they want to walk due to illness, and elderly people with weak lower limbs can feel the joy of moving by themselves. it can. In addition, it can be expected to contribute to the reduction of labor of caregivers, the elimination of labor shortages at care sites, and the reduction of medical expenses by preventing bedridden.

It is an external view of the walking vehicle which concerns on this invention. It is a plan view from above. It is an enlarged view of the part of the chest support pad seen from the front diagonally above. It is an enlarged view of the chest support pad part seen from the rear diagonally lower part. It is an enlarged view of FIG. 1 (b). It is a figure which shows the usage form of the walking vehicle which concerns on this invention. It is a figure of a conventional walking vehicle.

The pedestrian vehicle according to the present invention will be described below with reference to drawings and examples. The following description exemplifies one embodiment and one embodiment of the present invention, and the present invention is not limited to the following description. The following description can be modified without departing from the spirit of the present invention.

FIG. 1 shows the appearance of the walking vehicle 1 according to the present invention. FIG. 1 (a) is a front view, and FIG. 1 (b) is a side view. FIG. 2 is a plan view from above. Refer to FIGS. 1 and 2 below. The walking vehicle 1 is roughly formed of a carriage 10, a frame 12, an arm 14, and a chest support pad 16. In the walking vehicle 1, the direction in which the user travels is the front, and the opposite direction is the rear. The left-right direction refers to the direction seen by the user.

The carriage 10 is formed by a front portion 10a to which wheels with casters are attached and a rear portion 10b to which casters are attached to an aggregate formed in a flat U shape. The bottom portion 12a of the frame 12 having a well-shaped cross section is connected between the front portion 10a and the rear portion 10b to increase the structural strength of the carriage 10.

Two casters are arranged on the front portion 10a, and four casters are arranged on the rear portion 10b. The user is located in the U-shaped opening portion (“BASE”, see FIG. 2) of the rear portion 10b. As will be described later, the weight of the user is applied to the U-shaped opening portion of the rear portion 10b, but if the structure is such that the rear portion 10b, the stability is high and the possibility that the pedestrian vehicle 1 falls is extremely small. ..

The frame 12 is an aggregate having a substantially well-shaped cross section. It is located between the front portion 10a and the rear portion 10b of the carriage 10. Using the dolly 10 as a base, it serves as a base for supporting the chest support pad 16 described later.

See FIG. FIG. 3 is a perspective view of the upper portion of the frame 12 as viewed from the front side. An arm 14 is arranged on the upper part of the frame 12. The arm 14 is formed of a pair of plate members connected by a connecting member 14a (see FIG. 2). Then, it is pivotally supported so as to be swingable in the vertical direction with respect to the frame 12. A horizontal horizontal bar 18 is fixed to the tip end portion of the arm 14.

More specifically, a pair of arms 14 are connected by a coupling member 14a, and a horizontal horizontal bar 18 is fixed to the tip thereof. As a result, the horizontal bar 18 also serves as a reinforcing material for the arm 14 while acting as a rotation axis in which the chest support pad 16 swings in the vertical direction via the tilt plate 20 described later.

A tilt plate 20 having a swing shaft 22 whose upper side is parallel to the horizontal bar 18 is arranged on the horizontal bar 18. Further, the swing shaft 22 may be the horizontal bar 18 itself. As a result, the tilt plate 20 is pivotally supported so as to be swingable back and forth between the plate members constituting the arm 14.

FIG. 4 shows a perspective view of the walking vehicle 1 as viewed from diagonally below the rear. The bottom portion 24a of the angle adjusting rod 24 is arranged at the same point where the arm 14 is pivotally supported on the frame 12. The tip 24b of the angle adjusting rod 24 is swingably connected below the tilt plate 20 (see FIG. 1B). Therefore, when the angle adjusting rod 24 is projected, the angle of the tilt plate 20 changes.

The arm 14 and the angle adjusting rod 24 are fixed at a predetermined angle by the connecting member 14b. The member 21 is an angle meter that measures the angle of the chest support pad 16.

See FIG. 1 again. Below the point where the arm 14 and the angle adjusting rod 24 of the frame 12 are pivotally supported, the base portion 26a of the support rod 26 is pivotally supported so as to be swingable in the vertical direction. The tip 26b of the support rod 26 is connected to the intermediate portion of the angle adjusting rod 24 so as to be swingable in the front-rear direction. The support rod 26 supports and fixes the angle adjusting rod 24 and the arm 14 fixed thereto. The amount of protrusion of the support rod 26 may be adjustable.

FIG. 5 shows an enlarged view of FIG. 1 (b). A bearing member 28 that is parallel to the tilt plate 20 and forms a rotation axis perpendicular to the horizontal bar 18 (see FIG. 3) is fixed to the tilt plate 20. This shape is not particularly limited, but for example, a method in which members perpendicular to the surface of the tilt plate 20 are provided on the upper portion and the lower portion of the tilt plate 20 so that the facing surfaces are parallel to each other, and a rotation axis is provided between the facing surfaces. Can be considered. In this case, the member perpendicular to the tilt plate 20 having the facing surface is the bearing member 28.

A drive shaft 30 is inserted into the rotating shaft formed by the bearing member 28. That is, the bearing member 28 receives the upper and lower ends of the drive shaft 30. It may be said that the drive shaft 30 is actually arranged on the rotating shaft formed by the bearing member 28. In other words, the drive shaft 30 parallel to the tilt plate 20 and perpendicular to the horizontal bar 18 is fixed on the surface of the tilt plate 20 by the bearing member 28.

A drive motor 32 is arranged on the lower end side of the drive shaft 30. The drive motor 32 performs a reciprocating half-rotational motion so as to rotate the chest support pad 16 by a predetermined angle via the drive shaft 30.

A chest support pad 16 is fixed to the drive shaft 30. The chest support pad 16 is a plate-shaped member whose plane is arranged obliquely backward and upward. The size may be about 300 mm in width to 200 mm in length, and may be large enough to be applied to the chest of an adult.

See FIG. 1 again. Support bars 36 (36a, 36b, 36c, 36d) are arranged at the four corners of the chest support pad 16. It can be used as a support for the body when the user changes his / her posture from sitting to standing by using the lift function of this device.

Auxiliary belts 38 (see FIG. 6 to be described later) are arranged on the lower two support bars 36c and the support bars 36d of the support bars 36. The auxiliary belt 38 is used by being wrapped around both feet of the user. Further, in addition to FIG. 1, the frame 12 is provided with a grip portion 40 with reference to FIG. A plurality of grip portions 40 may be provided on the left and right sides of the frame 12.

The operation of the walking vehicle 1 having the above structure will be described with reference to FIG. 6A. The user approaches the trolley 10 from the opening BASE (see FIG. 2) of the rear portion 10b of the trolley 10. Then, apply your chest to the chest support pad 16. Then, the auxiliary belts 38 attached to the two support bars 36c and 36d (see FIG. 1A) on the lower side of the chest support pad 16 are wrapped around the rear side of the thigh.

Then, he lifts his / her body by holding the grip portion 40 of the frame 12 (lift function: see FIG. 6A), and moves from the sitting position to the standing position. The user who has moved to the standing position may walk by himself / herself while holding the grip portion 40 (see FIG. 6 (b)).

Here, the drive motor 32 is driven by a switch (not shown). The drive motor 32 starts the reciprocating rotation R by a predetermined angle. Then, the chest support pad 16 swings around the drive shaft 30 (see FIG. 5) as a rotation axis. This axis of rotation can be said to be an active axis of rotation. The movement of the chest support pad 16 becomes the movement of the auxiliary belt 38 as it is, causing a vertical movement FR on the thigh of the user. In addition, a swinging motion BR is also generated in the user's chest in accordance with the movement of the chest support pad 16.

That is, when the auxiliary belt 38 is wrapped around the leg, the thigh is forcibly moved up and down according to the movement of the chest support pad 16. The vertical movement FR and the chest swinging movement BR do not force the user to walk, but by moving the legs up and down alternately, walking is induced by a slight weight shift. Therefore, if the walking vehicle 1 according to the present invention is used, walking is promoted, and as a result, the motivation for walking can be motivated.

The walking vehicle according to the present invention can be suitably used not only for a person who needs assistance to walk but also for a person who has a diminished motivation to walk.

1 Walker 10 Bogie 10a Front 10b Rear 12 Frame 12a Bottom 14 Arm 14a Coupling member 14b Connecting member 16 Chest support pad 18 Horizontal bar 20 Swing plate 21 Angle meter 22 Swing shaft 24 Angle adjustment rod 24a (Angle adjustment rod ) Bottom 24b (of angle adjustment rod) Tip 26 Support rod 26a Base 26b Tip 28 Bearing member 30 Drive shaft 32 Drive motor 36 Support bar 38 Auxiliary belt 40 Grip

Claims (2)

With a dolly
The frame fixed to the dolly and
An arm that is pivotally supported on the frame so that it can swing up and down,
A horizontal bar fixed horizontally to the arm,
A tilt plate whose upper side is swingably supported with the horizontal bar as a swing axis,
An angle adjusting rod that projects and supports the lower part of the tilt plate from the arm,
A bearing member fixed to the tilt plate and forming a rotation axis parallel to the tilt plate and perpendicular to the horizontal bar.
The drive shaft inserted in the bearing member and
A drive motor fixed to the end of the drive shaft and reciprocating the drive shaft,
A chest support pad fixed to the drive shaft and
A walking vehicle characterized by having auxiliary belts fixed to both ends of the chest support pad and wrapped around the back of the user's thighs. The walking vehicle according to claim 1, wherein the frame is provided with a grip portion.

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