JP5837714B1 - Wheelchair front leg suspension - Google Patents

Abstract

An assist device for moving a stairs of a wheelchair is provided that can reduce the burden on nurses and facility staff when a patient or the like urgently evacuates the stairs with a wheelchair in a hospital or a care facility. A wheelchair assisting device having a structure adapted to a common structure for general-purpose wheelchairs, and by attaching the assisting device to a wheelchair, the stairs of the wheelchair can be easily moved. Specifically, a strong rectangular frame frame is used, and an L-shaped hook and a support plate are provided on the frame so that it can be used. The front frame of the rectangular frame frame is located in front of the wheelchair footrest when suspended, and the plate receives the wheelchair footrest from below, so that the wheelchair can be supported from the footrest side. . [Selection] Figure 4

Description

  The present invention relates to a device that assists safer movement of a wheelchair by providing a detachable support portion on the front leg side of the wheelchair when evacuating the stairs while keeping a care recipient in the wheelchair as it is. It is.

  To move the stairs while using a wheelchair used by a care recipient such as a person with a disability, it must be lifted and moved by human power from the front, rear, left and right of the wheelchair, or it is installed on the stairs of a station, etc. There is a method of moving with a large-sized electric wheelchair lifting device mobile device or by moving a wheelchair on a battery-powered driving caterpillar.

Japanese Unexamined Patent Publication No. 1-171549 (FIG. 10)

  A patient or a person with a physical disability moves on the stairs while riding on a wheelchair because the wheelchair is designed to move by pushing on a flat surface, and a dedicated handle for moving the wheelchair over a step. Or, because there are no support parts, more people are required to move the stairs, and there are cases where the width of the stairs is narrow. It is difficult and physically burdensome. Therefore, even if the stairs are wide enough for wheelchairs to pass, stairs can be moved by at least two people. In order to make this possible, a support unit that can be attached to and detached from a dedicated wheelchair suspension on the front leg side can be installed at a position where the assistant can exert the maximum force. The assistant on the upper side of the stairs uses a grip provided on the back of the wheelchair, and the assistant on the lower side of the stairs uses the wheelchair front leg suspension device of the present invention for a wheelchair that can be easily attached and removed under the footrest of the wheelchair. It may be used when it is necessary to move.

  The wheelchair front leg suspension device to be inserted from the lower side of the wheelchair footrest is made detachable, an L-shaped hook is suspended on the wheelchair frame, and a support frame for supporting the wheelchair footrest from the lower side is provided. Can be supported from below the stairs.

  The wheelchair front leg suspension system should be thin so that it can be inserted from the front or side of the gap between the bottom of the wheelchair footrest and the floor, and the wheelchair frame structure and connection parts should not be damaged. A structure that can be attached and detached in conformity with

  In addition, moving the stairs includes movements such as landings and hallways, so the wheelchair nose landing gear suspension should be hung with a rubber strap so that it can be held in place even if the assistant under the stairs releases his hand. The wheelchair is integrated with the wheelchair, and on the flat surface, the wheelchair front leg suspension is installed and can be moved forward.

  The wheelchair front leg suspension system is equipped with a rotating arm so that it can be supported by wheelchairs of different widths and lengths, and can be suspended on the wheelchair frame with an L-shaped hook at the tip, and the footrest of the wheelchair Alternatively, a wider plate P was installed to receive the frame at the lower end.

  In order to make it easy to attach and detach the wheelchair front leg suspension to the wheelchair frame in front, a movement in which the L-shaped hook and the handle frame H are movable is installed on the wheelchair front leg suspension.

  In order to prevent the wheelchair front leg suspension device from inadvertently moving in the front-rear direction under the wheelchair, the L-shaped hook of the wheelchair front leg suspension device is hooked on the position where the frame 6 and the frame 7 of the wheelchair cross, The mold hook was installed in front of the frame 6 and the handle frame was vertical in front of the footrest so that the rearward movement was restricted.

  An L-shaped hook is installed at one end of the rotating third and fourth vertical frames M, and a handle frame H is installed at the other end to constitute an integral movement. When the handle frame H is rotated, an L-shaped hook is formed. The hook also rotates in conjunction with it, and the rotation adjustment of the L-shaped hook can be performed on the assistant side under the stairs.

  The wheelchair front leg suspension device is provided with a plate having a width of about 8 cm and a length of 22 cm so that the wheelchair front leg suspension device can support the footrests of various wheelchairs having different widths and lengths. The footrest F can be supported from below.

  The support part of the wheelchair front leg suspension device is installed in front of the footrest with an appropriate distance from the footrest so that the assistant can support the wheelchair from the lower side of the stairs with the wheelchair front leg suspension system. Be able to grip.

  In order to suspend the entire wheelchair front leg suspension system on the footrest, a rubber cord is stretched over the footrest and placed under the feet of the care recipient, and the rubber cord is installed so that it can be hung.

  Construct an L-shaped hook with a side of about 5cm and connected at right angles, and when the movement is rotated to make the arm frame vertical, it is connected at right angles to the other end of the frame 11 that is connected to the arm frame at a right angle and becomes horizontal. The L-shaped hooks formed a mountain shape with respect to the horizontal so that the inner corners faced the ground and were perpendicular to the frame 7 of the wheelchair.

  L-shaped hooks are used on the left and right frames 7 of the parallel wheelchairs. When the arm frame rotates inside the frame 7 and the inner corner rotates from the inside and hooks from the upper side of the frame 7, the L-shaped hook L is used. When the arm frame is rotated from the outside and the inner angle is rotated from the outside and hooked from the upper side of the frame 7, an inverted L-shaped hook R is used.

  When the wheelchair front leg suspension is placed on a flat surface, the ground height to the top of the inner corner of the L-shaped hook that has been rotated is lower than the ground height of the frame 7 of the wheelchair that is suspended. Was suspended from the ground.

  The wheelchair can be used as a new wheelchair for moving stairs by attaching and detaching the wheelchair front leg suspension system for moving the stairs to the wheelchair, and the stairs move while the caregiver is placed on the wheelchair by assistants before and after the wheelchair. Enable.

  When you are forced to move stairs in an emergency at a hospital or nursing facility, you can use it as a disaster evacuation tool in a wheelchair by keeping a small and simple wheelchair front leg suspension device.

The top view of the wheelchair front leg suspension device concerning a 1st embodiment of the present invention. The front view of a wheelchair front leg suspension apparatus. The side view of the state which mounted | wore the wheelchair front leg suspension mounting | wearing. The perspective view of a wheelchair front leg suspension apparatus. The top view of the wheelchair front leg suspension apparatus concerning 2nd Embodiment of this invention. The perspective view of a wheelchair front leg suspension apparatus. The perspective view of the wheelchair front leg suspension concerning a 3rd embodiment of the present invention.

  Several embodiments of the wheelchair front leg suspension device according to the present invention will be described below.

[First Embodiment]
In FIG. 1, FIG. 2, and FIG. 4, when the seat width of a general-purpose wheelchair is about 40 cm, a pair of rear frames 1 and a front frame having a length of about 30 cm shorter than the seat width of a wheelchair made of aluminum pipe or the like S are arranged in parallel, and four cross-pipe joints J are connected to each of the ends, one at each end, and each of the four rear pipes 1 and S is further connected from the four cross-pipe joints J. The first extension frames 3 each having a length of about 10 cm are connected to the extension lines to form a parallel frame having a total length of about 50 cm. The first extension frames 3 having a length of about 20 cm are formed at the ends of the two left first extension frames 3. The vertical frame 2 is connected to the ends of the two first extension frames 3 on the right side so that the second vertical frame 2 is perpendicular to the first extension frame 3 and parallel to each other. ,car To constitute a rectangular frame member having a length of about 20cm in width about 50cm than the bearing width of the child.

  Between the pair of cross pipe joints J at both ends of the rear frame 1 and the pair of cross pipe joints J at both ends of the front frame S facing each other at an interval of about 20 cm between the rectangular frame frames, with respect to the rear frame 1 and the front frame S. The third and fourth vertical frames М are rotatably inserted so as to be perpendicular to each other and parallel to the first and second vertical frames 2.

  A plurality of frames having a length of about 15 cm are connected to both ends of the third and fourth vertical frames М so as to be perpendicular and parallel to each other, and the frame on the front frame S side is referred to as a handle frame H, and the rear frame 1 The side frame was an arm frame composed of an arm part A and an arm part B.

  The second extension frame 11 is connected at right angles to the other ends of the arm part A and the arm part B, the second extension frame 11 is parallel to the third and fourth vertical frames М, and the third and fourth The vertical frame М is connected to the arm portions A and B so as to extend, and one end thereof is set to be about 47 cm from the handle frame H on the front side of the third and fourth vertical frames М.

  When the arm part A and the arm part B are rotated with the rectangular frame frame lying horizontally, the arm frame comes to a position that stands perpendicular to and perpendicular to the frame frame. The L-shaped hook L, which is about 5 cm in length and constitutes an internal angle θ of about 90 degrees, is connected to the second extension frame 11 at a right angle, and the L-shaped portion forms a mountain shape with respect to the horizontal plane, Install the L-shaped hook L so that the inner angle of the L-shaped hook L faces the ground and protrudes like a mountain, and the tip of the L-shaped hook L faces the first and second vertical frames 2 at right angles. The handle frame H and the L-shaped hook L of the movement inserted into J rotate the handle frame H on the front side of the front frame S outside the rectangular frame frame, whereby the rear arm portion A of the rear frame 1 B is rotated in conjunction, and configured to be suspended from the top to the frame 7 of the wheelchair by internal angle of the L-shaped hooks L (see FIG. 3).

  When the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground height where the inner angle of the L-shaped hook L that is mountain-shaped with respect to the horizontal plane is suspended on the frame 7 when the arms A and B are vertically set up Was about 15 cm.

  However, regarding the size or configuration of the wheelchair front leg suspension, the length from the frame М or the L-shaped hook L of the movement to the handle frame H is about 47 cm, but the front frame S also serves as a support frame. The handle frame H and the front frame S are arranged at an interval so that they can be held in front of the footrest while being suspended from the wheelchair frame 7 by the inner angle of the hook L and restrained by the wheelchair frame 6, and the back of the hand or fingertip It is necessary to make it enter.

  In the pair of L-shaped hooks L facing the outside of the rectangular frame frames on the first and second vertical frames 2 side at the tips of the second extension frames 11, respectively, One of the L-shaped hooks L may be turned upside down, and the tip of the L-shaped hook L may be aligned to the left or right.

  The reason why the arm part A and the arm part B are used is to increase the suspension strength of the frame when a thin aluminum pipe or the like is used, and the arm frame and the handle frame H are located outside the rectangular frame frame. This is to limit the slide movement at the cross pipe joint J of the frame М.

  The third and fourth vertical frames М are in contact with the third and fourth vertical frames М between the first extension frames 3 connected at right angles to the first and second vertical frames 2 by the rectangular frame frames. A pair of plates P was fixed so as not to hinder the rotation of the plate.

  The rectangular plate P has a left and right width of about 8 cm and a front and rear length of about 22 centimeters longer than the third and fourth vertical frames M, but the third and fourth vertical frames M have a slightly wider width. In addition, the rectangular frame is stronger when it is fixed with a plinth rivet. When the plate P is a metal such as an aluminum plate, a fibrous carpet or the like is preferably attached to the upper surface of the plate P in order to prevent frictional noise between metals on the contact surface that receives the footrest or the footrest frame K.

  A rubber cord G is connected between the first and second vertical frames 2 so as to be placed on a pair of plates P, and the rubber cord G is hung on the footrest F of the wheelchair from above so that the wheelchair front leg suspension device can be suspended. I made it.

  If the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground up to the inner angle of the L-shaped hook L which becomes a mountain shape with respect to the horizontal plane when the wheelchair front leg suspension device is placed on the ground and the arms A and B are set up vertically The height is about 15 cm lower than the ground height of the frame 7.

  The movement includes an arm part A and an arm part B, but it is also possible to make only the arm part B by thickening a frame made of an aluminum pipe or the like. However, when only the arm part A is used or only the arm part B is used, the total length of the movement from the L-shaped hook L to the handle frame H is about 47 cm.

  The third and fourth vertical frames М of the movement are inserted into the cross pipe joint J and rotate and slide. The L-shaped hook L side (rear side) is slid by the arm part B, and the front side is slid by the handle frame H. Movement width is limited.

[Second Embodiment]
5 and 6, when the seat width of a general-purpose wheelchair is about 40 cm, the rear frame 1 and the front frame S of a pair of about 30 cm shorter than the seat width of a wheelchair made of aluminum pipes or the like are moved forward and backward. Arranged in parallel, the first and second vertical frames 4 having a length of about 20 cm between the left end and the right end are connected to the rear frame 1 and the front frame S at right angles to form a rectangular frame, A total of four first extension frames 5 each having a length of about 10 cm are connected to the extension lines at both ends of the rear frame 1 and the front frame S, each having a length of about 30 cm. A 50 cm parallel frame was constructed, and a total of four cheesepib joints Т were connected, one at each end of the frame.

  Between the pair of cheesepib joints Т at both ends of the rear frame 1 and the pair of cheesepive joints Т at both ends of the front frame S facing each other at an interval of about 20 cm, The third and fourth vertical frames N are rotated and slidably inserted so as to be parallel to the first and second vertical frames 4, and about 15 cm long at the front and rear ends of the third and fourth vertical frames N, respectively. Are connected at right angles to the third and fourth vertical frames N so as to be parallel to each other, the front end side frame is used as the handle frame H, and the rear end side pair of frames are the arm part A and the arm part B. It was.

  At the other end of the arm part A and the arm part B, the second extension frame 11 is connected to the arm part A and the arm part B at a right angle so that the second extension frame 11 is parallel to the third and fourth vertical frames N. The third and fourth vertical frames N are connected to extend so that the total length from the tip of the second extension frame 11 to the handle frame H is about 47 cm.

  When the arm part A and the arm part B are rotated and come to stand at a right angle and perpendicular to the rectangular frame frame with the rectangular frame frame lying horizontally, the second extension frame 11 An inverted L-shaped hook R, which is about 5 cm from the tip and forms an internal angle θ of about 90 degrees, is connected to the second extension frame 11 so as to be perpendicular to the second extension frame 11 and has a mountain shape with respect to the horizontal plane. The inverted L-shaped hook R is installed so that the inner angle of the inverted L-shaped hook R faces the ground and protrudes like a mountain, and the tip of the inverted L-shaped hook R faces the first and second vertical frames 4 at right angles. By rotating the handle frame H on the front side of the front frame S of the rectangular frame frame, the rear arm portions A and B of the rear frame 1 rotate in conjunction with each other, and the inner angle of the inverted L-shaped hook R On the wheelchair frame 7 And configured to be suspended.

  If the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground height up to the inner angle of the inverted L-shaped hook R that forms a mountain shape with respect to the horizontal plane when the arms A and B are set up vertically is the ground height of the frame 7 It was about 15 cm lower than the height.

  However, regarding the size or configuration of the wheelchair front leg suspension device, the length from the frame N or the movement reverse L-shaped hook R to the handle frame H is about 47 cm, but the front frame S also serves as a support frame. The handle frame H and the front frame S are spaced apart so that the handle frame H and the front frame S can be gripped in front of the footrest while being suspended from the wheelchair frame 7 by the inner angle of the character-shaped hook R and restrained by the wheelchair frame 6. Or it is necessary to let a fingertip enter.

  The pair of inverted L-shaped hooks R can be replaced with L-shaped hooks, and one of them can be an L-shaped hook L and the other can be an inverted L-shaped hook R.

  The reason why the arm frame is made the arm part A and the arm part B is to increase the suspension strength of the frame when a thin aluminum pipe or the like is used, and the arm part B and the handle frame H are arranged outside the rectangular frame frame. The reason for this is to limit the sliding movement of the cheese pipe joint J of the third and fourth vertical frames N.

  A rectangular shape that touches the third and fourth vertical frames N between the pair of first extension frames 5 on the left and right sides of the rectangular frame so as not to prevent the rotation of the third and fourth vertical frames N. The plates P were fixed one by one.

  The rectangular plate P has a left and right width of about 8 cm and a front and rear length of about 22 cm which is longer than the first and second vertical frames 4, but the first and second vertical frames 4 have a slightly wider width. In addition, the rectangular frame is stronger when it is fixed with a plinth rivet. When the plate P is a metal such as an aluminum plate, a fibrous carpet or the like is preferably attached to the contact surface of the plate P that receives the footrest in order to prevent frictional noise between the metals.

  The rubber cord G is connected between the third and fourth vertical frames N without being fixed so as to cover the pair of plates P so as not to inhibit the rotation of the third and fourth vertical frames N. The wheelchair front leg suspension device can be hung on the footrest F of the wheelchair from above.

  If the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground height up to the inner angle of the inverted L-shaped hook R that forms a mountain shape with respect to the horizontal plane when the arms A and B are set up vertically is the ground height of the frame 7 About 15 cm lower than the height.

  The movement includes an arm part A and an arm part B, but it is also possible to make only the arm part B by thickening a frame made of an aluminum pipe or the like. However, at this time, the distance from the inverted L-shaped hook R to the handle frame H is about 47 cm.

  The third and fourth vertical frames N of the movement rotate and slide, but the slide width is limited by the arm part B and the handle frame H.

  A rubber cord G is connected between the third and fourth vertical frames N so as to cover a pair of plates P, and the rubber cord G is looped around so as not to prevent the rotation of the third and fourth vertical frames N. It was stretched and the wheelchair front leg suspension device was hung by hanging the rubber cord G on the footrest F of the wheelchair from above.

[Third Embodiment]
In FIG. 7, when the seat width of a general-purpose wheelchair is about 40 cm, the rear frame 1 and the front frame S are arranged in parallel with a pair of lengths of about 30 cm shorter than the seat width of a wheelchair made of aluminum pipes or the like. The first and second vertical frames 12 each having a length of about 20 cm are connected to each other at right angles to form a rectangular frame frame. On the extension lines on both sides of the rear frame 1 and the front frame S about 30 cm in length A pair of first extension frames 5 each having a length of about 10 cm are connected to each other, and a third vertical frame 10 having a length of about 20 cm is connected between ends of the first extension frame 5 on the left side of the first extension frame 5 on the right side. A fourth vertical frame 10 having a length of about 20 cm is connected between the end portions to form three combined rectangular frames having a width of about 50 cm wider than the seat width of the wheelchair as a whole. 4 vertical frame 10 The respectively cheese Pas Eve joint Т inserted rotation and slidably.

  An arm frame C of about 15 cm is connected to the cheese pipe joint Т so as to be perpendicular to the third and fourth vertical frames 10, and a second extension frame of about 25 cm in length is connected to the other end of the arm frame C. X is connected to the arm frame C so as to extend perpendicularly to the arm frame C and the frame 10 is extended, and the second extension frame X is connected so that the distance from the tip to the front frame S is about 45 cm. When the arm frame C rotates with the frame lying horizontally and comes to a position that stands perpendicular to and perpendicular to the rear frame 1 and the front frame S, the inner angle is about 5 cm from the tip of the second extension frame X. The inverted L-shaped hook R is connected so that the inverted L-shaped hook R constituting about 90 degrees is perpendicular to the second extension frame X to form a mountain shape with respect to the horizontal plane, and the inverted L-shaped hook A pair of movements in which the inner angle of R protrudes like a mountain facing the ground, and the ends of the inverted L-shaped hooks R are oriented so as to be perpendicular to the first and second vertical frames 12, respectively. However, the arm frame C is configured to be suspended from the wheelchair frame 7 by the inner angle of the inverted L-shaped hook R by rotating the arm frame C.

  If the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground height up to the inner angle of the inverted L-shaped hook R that forms a mountain shape with respect to the horizontal plane when the arm frame C is set up vertically is higher than the ground height of the frame 7 Also, the height was about 15 cm.

  However, regarding the size or configuration of the wheelchair front leg suspension device, the distance from the inverted L-shaped hook R to the front frame S is about 45 cm. However, since the front frame S also serves as a support frame, the inverted L-shaped hook The front frame S needs to be spaced apart from the tip of the footrest of the wheelchair and enter the back of the hand or the fingertip while being suspended from the wheelchair frame 7 by the inner corner of the R and restrained by the wheelchair frame 6.

  The pair of inverted L-shaped hooks R can be replaced with L-shaped hooks, or only one of them can be installed as an L-shaped hook L.

  Unlike the arm portions A and B used in the first and second embodiments, the arm frame C is single in this embodiment, but this is because the strength for suspension of the movement is made using a thick aluminum pipe or the like. It is a premise that it is sufficient.

  A pair of rectangular plates P having a length of about 22 cm and a width of about 8 cm were fixed between the pair of first extension frames 5 on the rear frame 1 side of the rectangular frame frame and the pair of frames 5 on the frame S side. However, the plate P is installed so as not to hinder the rotation of the arm frame C so that the vertex of the inner angle of the inverted L-shaped hook R reaches the vertical line of the frame 12.

  The rectangular plate P has a left and right width of about 8 cm and a front and rear length of about 22 cm, which is longer than the first and second vertical frames 12, but the first and second vertical frames 12 have a slightly wider width. In addition, the rectangular frame is stronger when it is fixed with a plinth rivet. When the plate P is a metal such as an aluminum plate, a fibrous carpet or the like is preferably attached to the upper surface that receives the footrest.

  A rubber cord G is connected to the third and fourth vertical frames 10 so as to cover the pair of plates P between the pair of third and fourth vertical frames 10, and the rubber cord G is placed on the footrest F of the wheelchair. The wheelchair front leg suspension system can be hung by hanging from the top.

  When the cheese pipe joint Т inserted in the third and fourth vertical frames 10 is restricted in sliding movement on the front frame S side, the distance on the straight line from the reverse L-shaped hook R of the move Munt to the front frame S is About 45 cm.

  However, since the front frame S also serves as a support frame with respect to the size or configuration of the wheelchair front leg suspension device, the front frame S always needs to be spaced apart from the tip of the footrest of the wheelchair so that the back of the hand or the fingertip can enter.

  If the ground height of the frame 7 of the general-purpose wheelchair is about 20 cm, the ground height up to the inner angle of the inverted L-shaped hook R that forms a mountain shape with respect to the horizontal plane when the arm frame C is set up vertically is about 15 cm.

  Although not shown in the drawing, a fixing bracket is provided for restricting the sliding movement of the cheese pipe joint Т to the support frame S side.

Next, a specific method of using the wheelchair forefoot suspension according to the present invention will be described.
When going down the stairs in a wheelchair, move the front wheel casters to the front of the step from the stair landing in the forward direction. The other assistant moves to the lower side of the stairs and moves the wheelchair front leg suspension to the lower side of the footrest F with the wheelchair front leg suspension lying on a flat surface. At this time, since the ground clearance of the footrest F varies depending on the state of use, the wheelchair is placed in front of a free front wheel caster facing forward so that the tip of the L-shaped hook L does not hit the lower part of the footrest F or the frame 9. The front leg suspension device may be slid so as to be inserted from either the left or right side of the wheelchair. However, if the wheelchair front leg suspension device cannot be inserted below the footrest F, the rear wheeler can tilt the wheelchair and raise the front wheel caster in the air. At this time, the free wheel caster, which is the front wheel of the wheel chair, is said to stop the wheel chair in the forward direction, and forms the widest space between the footrest and the caster, and when viewed from above, the caster is parallel to the frame 9 or This is because, in a straight line, the rotation of the arm portion A or the arm portion B and the suspension of the L-shaped hook L or the inverted L-shaped hook R to the frame 7 of the wheelchair are prevented most.

  When the assistant under the stairs holds the handle frame H of the wheelchair front leg suspension device lying down on the plane with both hands and rotates the right or left hand 90 degrees, the tip of the L-shaped hook L of the movement is at the inside of the wheelchair. Since the arms A and B try to stand vertically by rotating in a right-angled direction from the left to the outside of the left and right frames 7, the handle frame H is moved to the frame 7 by using the wrist frame just before that. Lift higher than.

  Hold the handle frame H, lift the tip of the L-shaped hook L, rotate it so that it does not come into contact with the frame 7, and hold the handle frame H so that the tip of the L-shaped hook L overhangs on the frame 7 When rotating left and right, the arm portions A and B hit the frame 7 from the inside and the rotation of the handle frame H stops. Therefore, when the position of the L-shaped hook L is lowered as it is, the inner angle of the L-shaped hook L is set on the wheelchair. It is possible to hook from the upper side of the frame 7 behind the frame 6.

  Next, when the assistant on the lower side of the stairs lays the rubber cord G on the upper side of the footrest F and below the feet of the care recipient, the entire wheelchair front leg suspension device is formed with the L-shaped hook L and the rubber cord G. Will be suspended in the air and suspended in the air.

  At this time, the position where the L-shaped hook of the wheelchair front leg suspension device can be mounted on the wheelchair is on the upper side of the wheelchair frame 7 and on the rear side of the wheelchair than the frame 6, but the size of the wheelchair is large. In this case, it can be suspended on the frame 9 of the wheelchair. In this case, however, care must be taken because the L-shaped hook L may inadvertently slide back and forth through the wheelchair frame 9.

  On the other hand, the handle frame H and the front frame S are positioned in front of the tip of the footrest F of the wheelchair, and the L-shaped hook is restricted by the wheelchair frame 6 from moving forward of the wheelchair. In use, the wheelchair is tilted backwards and the front wheel side is raised, so the wheelchair front leg suspension is restricted from moving forward by the wheelchair frame 6 and the handle frame H is restricted from moving backward by the wheelchair footrest So that the home position can be maintained.

  In a general-purpose wheelchair, the frame 8 of the footrest F is connected by the frame 9. However, in some reclining type wheelchairs, the footrest F is movable, the frame 9 is not provided, and the footrest F and the frame 8 are connected. There are cases where it can be flipped up or separated, but the plate width is about 8 cm and the length is 22 cm so that it can be applied to the size of the wheelchair. And the footrest F or the lower end K of the footrest can be supported by the wide and vertically long plate P from below, and the assistant can hold the front frame S, so that the wheelchair can be supported from below the stairs. it can.

  The assistant inserts his hand into the gap between the tip of the footrest F and the front frame S of the wheelchair front leg suspension device, pulls up the front frame S, floats the front wheel of the wheelchair in the air, and goes down the stairs. At this time, the assistant on the stairs holds the wheelchair's existing grip and lifts the rear wheel in the air, but the wheelchair tilts backward from the upper and lower standing positions of the assistant's stairs. Although it leans to the side, the posture is stable on the wheelchair.

  The tip of the L-shaped hook L in FIG. 4 has a structure that faces the left and right sides when viewed from the caregiver when the handle frame H is set up vertically, but may be replaced with an inverted L-shaped hook R as shown in FIG. Is possible. In this case, the operation of the handle frame H is the reverse of the above, and the arms A and B are rotated slightly to the outside once with the handle H so that the tip of the inverted L-shaped hook R does not contact the frame 7. Then, when the handle frame H is rotated inward from the left and right after the tip of the inverted L-shaped hook R is lifted so that it does not overhang and hit the frame 7, the arms A and B hit the frame 7 from the outside and the handle Since the rotation of the frame H stops, if the position of the inverted L-shaped hook R is lowered as it is, the frame 7 is hooked at the inner corner of the inverted L-shaped hook R, and the wheelchair front leg suspension device floats in the air with a rubber string. It will be.

  FIG. 7 is obtained by omitting the handle frame H from FIG. 6 and replacing the pair of arm portions A and B with a single arm frame C. Instead of the handle frame H, the arm frame C is held and the inverted L-shaped hook R is suspended on the frame 7 by rotating from left and right outside to inside. Rotate outward from the left and right sides so that the tip of the inverted L-shaped hook R does not touch the frame 7 once from the state where the arm C stands vertically, and the tip of the inverted L-shaped hook R overhangs the frame 7 If the arm frame C hits the frame 7 from the outside and stops rotating when it is lifted so that it does not hit, the rotation stops, so if the position of the inverted L-shaped hook R is lowered as it is, the inverted L-shaped hook R The wheelchair front leg suspension device floats in the air by hooking the frame 7 at the inner angle of the wheelchair.

  The wheelchair front leg suspension prevents the wheelchair front wheel caster from rotating, but can travel approximately linearly in the forward direction.

  As for use outside the building, even if it is an extreme rough road that is difficult to move with the wheel of a wheelchair or a steep hill, the two front and rear assistants can carry it like a stretcher in the wheelchair, For example, it is possible to move in a rubble like a wheelchair stretcher.

  A conventional wheelchair can be a wheelchair with a new function with a wheelchair front leg suspension device, so there is no need to newly develop a wheelchair for moving stairs and it is detachable, so it is simple, inexpensive and highly convenient .

DESCRIPTION OF SYMBOLS 1 ... Rear frame 2, 4, 12 ... 1st, 2nd vertical frame 3, 5 ... 1st extension frame 10 ... 3rd, 4th vertical frame 11 ... 2nd extension frame A, B ... Arm part C ... Arm frame F ... Footrest G ... Rubber string H ... Handle frame J ... Cross pipe joint K ... Footrest frame lower end L ... L-shaped hook M, N ... Third and fourth vertical frames P ... Plate R ... Reverse L-shaped hook S ... Front frame T ... Cheese pipe joint X ... Second extension frame θ ... L-shaped hook L inner angle and reverse L-shaped hook R inner angle

Claims (5)

A wheelchair front leg suspension device for supporting a general-purpose wheelchair from below the footrest,
a) a front frame and a rear frame that are parallel to each other and longer than the seat width of the wheelchair; a left frame spanned between a left end portion of the front frame and a left end portion of the rear frame; a right end portion of the front frame; A rectangular frame body comprising a right frame parallel to the left frame spanned between right ends of the rear frame;
b) a pair of vertical frames that are spanned between the front frame and the rear frame and parallel to the left frame and the right frame;
c) a support member attached to each of the front frame and the rear frame of the frame body to support the pair of vertical frames rotatably;
d) a pair of handle portions and a pair of arm portions that are attached to the front end and the rear end of each of the pair of vertical frames and rotate integrally with the vertical frame;
e) two L-shaped hooks connected one by one to the tips of the pair of arm portions,
With
The pair of vertical frames are positioned at a distance shorter than the seat width of the wheelchair,
The L-shaped hook is configured to form a chevron that protrudes upward when the arm portion stands vertically upward with respect to the frame body in a state where the frame body is horizontal.
The frame body is disposed below the footrest of the wheelchair so that the pair of arm portions are positioned on the rear side of the wheelchair and the pair of handle portions are positioned on the front side, and the pair of handle portions are rotated to When the pair of arm portions are rotated from the inside and the upper side toward the left and right frames (7) of the lower part of the wheelchair, the two L-shaped hooks are attached to the left and right frames (7) of the lower part of the wheelchair. A wheelchair front leg suspension device configured to be suspended from above. A wheelchair front leg suspension device for supporting a general-purpose wheelchair from below the footrest,
a) Parallel front and rear frames that are parallel to each other and longer than the seat width of the wheelchair; a left frame spanned between the left end of the front frame and the left end of the rear frame; and the right end of the front frame A rectangular frame body comprising a right frame parallel to the left frame spanned between a portion and a right end of the rear frame;
b) a pair of vertical frames that are spanned between the front frame and the rear frame and parallel to the left frame and the right frame;
c) A total of four support members, one on each of the left and right ends of the front frame and the left and right ends of the rear frame, for supporting the left frame and the right frame rotatably. When,
d) a pair of handle portions and a pair of arm portions that are attached to the front end and the rear end of the left frame and the right frame, respectively, and rotate integrally with the left frame and the right frame;
e) two L-shaped hooks connected one by one to the tips of the pair of arm portions,
With
The pair of vertical frames are positioned at a distance shorter than the seat width of the wheelchair,
The L-shaped hook is configured to form a chevron that protrudes upward when the arm portion stands vertically upward with respect to the frame body in a state where the frame body is horizontal.
The frame body is disposed below the footrest of the wheelchair so that the pair of arm portions are positioned on the rear side of the wheelchair and the pair of handle portions are positioned on the front side, and the pair of handle portions are rotated to When the pair of arms are rotated from the outside and the upper side toward the left and right frames (7) at the lower part of the wheelchair, the two L-shaped hooks are located at the upper sides of the left and right frames (7) at the lower part of the wheelchair. Wheelchair front leg suspension system configured to be suspended from A wheelchair front leg suspension device for supporting a general-purpose wheelchair from below the footrest,
a) a front frame and a rear frame that are parallel to each other and longer than the seat width of the wheelchair; a left frame spanned between a left end portion of the front frame and a left end portion of the rear frame; a right end portion of the front frame; A rectangular frame body comprising a right frame parallel to the left frame spanned between right ends of the rear frame;
b) a pair of vertical frames that are spanned between the front frame and the rear frame and parallel to the left frame and the right frame;
c) two connecting members rotatably inserted in each of the left frame and the right frame;
d) two arms perpendicular to the left and right frames connected to each of the two connecting members;
e1) an extension frame connected to each of the two arm portions at a right angle to the arm portions and in parallel to the left frame and the right frame;
e2) two L-shaped hooks connected to the respective ends of the extension frame one by one so as to be perpendicular to the extension frame ;
With
The pair of vertical frames, located at a wheelchair shorter distance than the bearing width of the general purpose,
The L-shaped hook is configured to form a chevron that protrudes upward when the arm portion is erected vertically with respect to the frame body in a state where the frame body is horizontal.
When the frame main body is inserted below the pair of footrests (F) of the wheelchair, and the pair of arm portions are rotated from the outside and above to the left and right frames (7) of the lower part of the wheelchair, A wheelchair front leg suspension device configured such that the two L-shaped hooks are respectively suspended from the upper side of the left and right frames (7) of the wheelchair.   When the frame main body is disposed below the footrest of the wheelchair, a tape-like rubber string for suspending the frame main body on the footrest is suspended between the left frame and the right frame. The wheelchair front leg suspension device according to any one of claims 1 to 3.   Plates for suspending a pair of footrests (F) of the wheelchair from the lower side are installed between the left frame and the vertical frame and between the right frame and the vertical frame in the frame body. The wheelchair front leg suspension device according to any one of claims 1 to 4.

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