JP2018134238A - Rollator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a rollator having a passively swinging chest support pad cannot be used by an elderly person who is decreased in eagerness of walking and cannot step out.SOLUTION: A rollator includes: a truck 10; a frame 12 fixed to the truck; an arm 14 pivoted to the frame in a vertically swingable manner; a horizontal bar horizontally fixed to the arm; a gate plate 20 pivoted so as to make the upper side swingable with the horizontal bar as a swing shaft; an angle adjustment rod 24 for projecting the lower part of the gate plate from the arm and supporting; a bearing member fixed to the gate plate and forming a rotation axis parallel to the gate plate and perpendicular to the horizontal bar; a drive shaft inserted into the bearing member; a drive motor 32 fixed to the end of the drive shaft; a chest support pad 16 fixed to the drive shaft; and an auxiliary belt fixed to both ends of the chest support pad. The rollator actively swings the chest support pad so as to promote eagerness of walking by pulling the legs via the belt.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a walking vehicle, and particularly relates to a walking vehicle that swings a chest support pad with a drive motor, applies a gravitational force to a pedestrian's foot with a belt connected to the chest support pad, and promotes walking. is there.

  Currently, various walking support devices have been commercialized in order to support the independent walking of elderly people with weak lower limbs (Non-Patent Document 1). However, since many of the walking support devices developed so far are expensive and unusable, there is no device that promotes the willingness of elderly users to walk.

  Therefore, the inventors of the present application prototyped a walking car 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 promotion 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 pulls the foot through the belt 138 to improve the willingness to walk. .

  FIG.7 (b) shows the user who moves from the wheelchair to the walking vehicle 101, and FIG.7 (c) has shown the state which supports a body with the walking vehicle 101 by assistance.

“Evaluation of the walking promotion effect of a walking vehicle having a chest support pad with a rotation mechanism”, Ken Huang, etc. The 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 an elderly person who cannot walk because his / her motivation to walk decreases due to illness or aging.

  The walking vehicle according to the present invention has been conceived in view of the above-described problems, and provides a walking vehicle that can promote walking and encourage walking if there is no severe physical walking disorder. It is.

More specifically, the walking car according to the present invention is:
Cart 10;
A frame 12 fixed to the carriage;
An arm 14 pivotally supported by the frame so as to swing up and down;
A horizontal bar 18 fixed horizontally to the arm;
A tilt plate 20 whose upper side is pivotally supported with the horizontal bar as a swing shaft 22;
An angle adjusting rod 24 that protrudes 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;
A drive shaft 30 inserted in the bearing member;
A drive motor 32 fixed to the end of the drive shaft 30;
A chest support pad 16 fixed to the drive shaft 30;
Auxiliary belt 38 fixed to both ends of the chest support pad
It is characterized by having.

  In the walking vehicle according to the present invention, the chest support pad is arranged on the frame provided on the carriage, and the auxiliary belt is provided, so that the lift function capable of changing the posture from the sitting position on the wheelchair or the bed to the standing position, A stable walking can be assisted.

  Furthermore, the drive-type rotation mechanism attached to the back of the chest support pad naturally pulls out the user's upper body swing by rotating the chest support pad with a drive motor during walking, and the belt attached to the waist and thighs The user's willingness to walk is promoted by pulling the user's lower limbs.

  As a result, if a walking vehicle with a chest support pad using an active drive mechanism is realized, it can be used even by elderly people who can not walk even if they want to walk because of illness. it can. In addition, it can be expected to contribute to reducing the labor costs of caregivers, eliminating labor shortages at nursing care sites, and reducing medical expenses by preventing bedridden people.

It is an external view of the walking vehicle which concerns on this invention. It is a top view from the top. It is the enlarged view of the part of the chest support pad seen from the front diagonally upward. It is the enlarged view of the chest support pad part seen from back diagonally below. It is an enlarged view of FIG.1 (b). It is a figure which shows the usage pattern of the walking vehicle which concerns on this invention. It is a figure of the conventional walking vehicle.

  Hereinafter, the walking vehicle according to the present invention will be described with reference to the drawings and examples. The following description exemplifies an embodiment and an example 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 a walking vehicle 1 according to the present invention. FIG. 1A is a front view, and FIG. 1B is a side view. FIG. 2 is a plan view from above. Refer to FIG. 1 and FIG. 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 proceeds is the front, and the reverse direction is the rear. The left-right direction refers to the direction viewed from the user.

  The carriage 10 is formed of a front part 10a to which wheels with casters are attached, and a rear part 10b to which casters are attached to aggregates formed in a plane U shape. Between the front part 10a and the rear part 10b, the bottom part 12a of the frame 12 having a cross-sectional well shape is connected, and the structural strength of the carriage 10 is increased.

  Two casters are arranged in the front part 10a, and four casters are arranged in the rear part 10b. A user is located in the U-shaped opening part ("BASE", see FIG. 2) of the rear part 10b. As will be described later, the weight of the user is applied to the U-shaped opening portion of the rear portion 10b. However, the structure like the rear portion 10b is highly stable, and the possibility that the walking vehicle 1 falls is extremely low. .

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

  Please refer to FIG. FIG. 3 is a perspective view of the upper part of the frame 12 as viewed from the front side. An arm 14 is disposed on the upper portion of the frame 12. The arm 14 is formed of a pair of plate members that are connected to each other by a coupling member 14a (see FIG. 2). The frame 12 is pivotally supported so as to be swingable in the vertical direction. A horizontal horizontal bar 18 is fixed to the tip 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 member for the arm 14 while serving as a rotating shaft on which the chest support pad 16 swings in the vertical direction via a tilt plate 20 described later.

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

  In FIG. 4, the perspective view which looked at the walking vehicle 1 from back diagonally downward is shown. At the same point where the arm 14 is pivotally supported by the frame 12, a bottom 24a of the angle adjusting rod 24 is disposed. The tip 24b of the angle adjusting rod 24 is connected to the lower side of the tilt plate 20 so as to be swingable (see FIG. 1B). Therefore, when the angle adjusting rod 24 is protruded, 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.

  Refer to FIG. 1 again. Below the point where the arm 14 and the angle adjusting rod 24 of the frame 12 are pivotally supported, a base portion 26a of the support rod 26 is pivotally supported so as to be swingable in the vertical direction. The distal end 26b of the support rod 26 is coupled to the middle 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 protruding amount of the support rod 26 may be adjustable.

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

  A drive shaft 30 is inserted into a 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 disposed 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 disposed on the lower end side of the drive shaft 30. The drive motor 32 performs a reciprocating half-rotation 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-like member that is disposed so that the plane is inclined rearward and upward. The size may be about 300 mm in width to 200 mm in length and can be applied to an adult's chest.

  Refer to FIG. 1 again. Support bars 36 (36a, 36b, 36c, 36d) are arranged at the four corners of the chest support pad 16. Using the lift function of this device, it can be used as a body support during posture change when the user is standing from the sitting position.

  An auxiliary belt 38 (see FIG. 6 to be described later) is disposed on the lower two support bars 36c and 36d of the support bar 36. The auxiliary belt 38 is used by being wound around both legs of the user. Further, referring to FIG. 2 in addition to FIG. 1, a grip portion 40 is provided on the frame 12. 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. The user approaches the carriage 10 through the opening BASE (see FIG. 2) in the rear portion 10b of the carriage 10. Then, his / her chest is applied to the chest support pad 16. Then, the auxiliary belt 38 attached to the two support bars 36c and 36d on the lower side of the chest support pad 16 (see FIG. 1A) is wound around the back side of his / her thigh.

  Then, holding the grip portion 40 of the frame 12, the user lifts his / her body (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. 6B).

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

  That is, when the auxiliary belt 38 is wound around the leg, the thigh is forcibly moved up and down in accordance with the movement of the chest support pad 16. The up-and-down movement FR and the chest swinging movement BR do not force the user to walk, but walking is led by a slight weight shift by alternately moving the legs up and down. Therefore, when the walking vehicle 1 according to the present invention is used, walking is promoted, and as a result, the willingness to walk can be raised.

  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 whose desire to walk has declined.

DESCRIPTION OF SYMBOLS 1 Walking car 10 Car 10a Front part 10b Rear part 12 Frame 12a Bottom part 14 Arm 14a Connecting member 14b Connecting member 16 Chest support pad 18 Horizontal bar 20 tilting plate 21 Angle meter 22 Oscillating shaft 24 Angle adjusting rod 24a ) Bottom 24b Tip 26 (of angle adjusting rod) Support rod 26a Base 26b Tip 28 Bearing member 30 Drive shaft 32 Drive motor 36 Support bar 38 Auxiliary belt 40 Grip part

Claims (2)

Cart,
A frame fixed to the carriage;
An arm pivotally supported by the frame so as to swing up and down;
A horizontal bar fixed horizontally to the arm;
A tilt plate pivoted so that the upper side can swing around the horizontal bar as a swing axis;
An angle adjusting rod that protrudes 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;
A drive shaft inserted into the bearing member;
A drive motor fixed to an end of the drive shaft;
A chest support pad fixed to the drive shaft;
A walking vehicle having auxiliary belts fixed to both ends of the chest support pad.   The walking vehicle according to claim 1, wherein the frame includes a grip portion.