JP5747112B1 - Wheelchair front leg suspension - Google Patents

Abstract

[PROBLEMS] To provide a common structure for a general-purpose wheelchair that facilitates stair movement by attaching an auxiliary device for stair movement to a conventional wheelchair to move the staircase with a wheelchair in case of emergency evacuation of a patient or the like in a hospital or a care facility Provide a suitable simple emergency staircase wheelchair assistance device.
The wheelchair itself has a frame 11 having a strength, and an L-shaped hook L having a strength that can withstand the use of the wheelchair and a support portion. It is installed from the bottom of the footrest so that it is integrated with the wheelchair, and a new support function for moving the stairs is added to the front leg side of the wheelchair.
[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. move with extensive electric wheelchair lift device mobile, or there is a way to move by putting the wheelchair over the 蓄 battery self-propelled drive tracks.

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 or a support section is required is more than necessary personnel to the stair movement in order to have such equipped, also with or there is such a case where the width of the staircase is narrow, the stairs move forced to unreasonable attitude in the caregiver 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. Stairs upper caregiver using grips equipped the existing back wheelchair, also a wheelchair front legs suspension system of the wheelchair of the present invention is a step-lower caregiver that can be easily attached to and detached from the footrest bets under side of the wheelchair, Use it when you need to move stairs.

To be able to attach and detach the wheelchair front legs suspension system is inserted from the underside of the footrest bets wheelchair, by suspending the L-shaped hooks to wheelchair frame, a support frame for supporting the footrest bets wheelchair from below The wheelchair can be supported from below the stairs.

Wheelchair front legs suspension system, in the thin so that it can be inserted from the front or from the side of the gap between the lower side and the floor surface of the footrest bets wheelchair, also so as not to impair the frame structure and connecting parts of the wheelchair, A structure that fits the wheelchair and is detachable.

  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, so that it can be suspended on the wheelchair frame with an L-shaped hook at the tip, and the wheelchair footless A wide plate P was installed to receive the frame at the bottom or the bottom of the frame.

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, type hook forwardly from the frame 6, also handle frame is installed so as to restrict the rearward movement becomes vertically footrest preparative forward.

L-shaped hooks 3 rotates, installed at one end of a fourth vertical frame M, also established a handle frame H is thus configured to Mubumen bets made integral with the other end, when rotating the handle frame H L The character-shaped 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.

Wheelchair front leg suspension system, to allow support width and length of different diverse wheelchair footrest from below, by providing a plate width 8cm longitudinal length 22cm wheelchair front leg suspension system, footrest preparative lower K on it or footrest bets F to be supported from the lower side.

  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.

The entire wheelchair before leg suspension device so that it can be suspended on the footrest, hung on the upper side of the footrest door and stretched the rubber straps, also spans under the care recipient of the foot, to install a rubber cord as Tsuruseru.

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. interior angle and the arm frame from the outside of the rotation is if rotated from the outside hooked from the upper frame 7 and the inverted L-shaped hook R.

  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 / detaching the wheelchair front leg suspension device for moving stairs to / from 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 . Rights elevational view of a wheelchair front legs suspension system according to a second embodiment of the present 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 arranged in parallel S, one for each of the two ends, a total of four of the cross pipe join preparative J connected respectively, further its frame 1 rear from these four cross pipe joint J previous frame S each of connecting the first extension frame 3 of each length of about 10cm on the extension constitutes a parallel frames of length about 50 cm, a length of about 20cm on the end of the two first extension frame 3 in the left The first vertical frame 2 and the second vertical frame 2 at the ends of the two right-side first extension frames 3 are 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.

A pair of cross pipes joints J at both ends of the frame 1 after facing approximately 20cm intervals of said rectangular frame member, between a pair of cross pipes joints J at both ends of the front frame S, against the rear frame 1 and the previous frame S as a right angle Te, also the first, so as to be parallel for the second vertical frame 2, 3, and rotatably inserted into the fourth vertical frame M.

Said third, and a plurality of frames across a length of about 15cm of the fourth vertical frame М connected to respectively a right angle respectively parallel, before the frame of the frame S side and handle frame H, the rear frame 1 side of the frame and the arm frame consisting arm a and arm 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.

Wherein in a state where the frame member was lay horizontally rectangular, if you rotate the arm portion A and the arm portion B that comes right angle and vertically standing position on the arm frame is frame member, the tip of the second extension frame 11 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. handle frame H and L-shaped hook L of the inserted Mubumen bets on J is, the side of the arm portions of the rear frame 1 by rotating the handle frame H before side of the front frame S outside the framework of the rectangular frame member A 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 about 20cm the ground clearance of a general-purpose wheelchair frame 7, the arm portion A, the ground clearance of interior angle B of the chevron with respect to the horizontal plane when the upright L-shaped hook L is suspended on the frame 7 Was about 15 cm.

However, the size or configuration of the wheelchair front leg suspension system has been set to about 47cm in length to the handle frame H from the frame М or Mubumen bets L-shaped hooks L, since the previous frame S is also serves as a supporting frame, L-shaped The handle frame H and the front frame S are arranged at a distance 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 mold hook L and restrained by the wheelchair frame 6. It is necessary to allow the fingertip to 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, and one of the L-shaped hook L Conversely friendly, may be provided to align the tip direction of the L-shaped hook L to the left or right.

Arm portions to that in the A and the arm portion B is for increasing the suspension strength of the frame when using a thin aluminum pipe or the like, also the arm frame and the handle frame H is located outside the side of the rectangular frame member This is for restricting the slide movement at the cross pipe joint J of the frame М.

The first in frame frame rectangle, between the second vertical frames 2 each connected at right angles to the first extension frame 3, 3, 3 in contact with the fourth vertical frame M, the fourth vertical frame M A pair of plates P was fixed so as not to hinder the rotation of the plate.

In left and right width of about 8cm rectangular plate P, the third the length of the front and rear, has been a long about 22 cm than the fourth vertical frame M, the third and little wider, fourth vertical frame M the rectangular frame frame is better to be fixed in the plastic India rivets also increases the more strength. 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.

When about 20cm the ground clearance of a general-purpose wheelchair frame 7, ground up interior angle of the L-shaped hooks L as a chevron with respect to the horizontal plane when the wheelchair front leg suspension system erected arm A placed on the ground, the B vertically The height is about 15 cm lower than the ground height of the frame 7.

Mubumen bets is provided with an arm portion A and the arm portion B, it is also possible to only the arm B by thick frames consisting Arumipaibu like. However when only or arm B when the only the arm portion A, the full length of Mubumen bets from the L-shaped hook L to handle frame H is about 47cm.

Mubumen bets third, fourth vertical frame М is slid to rotate is inserted in the cross pipe joint J, the L-shaped hooks L side (rear side) in the arm section B, the front side in the handle frame H The slide 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 parallel to the first length of about 20cm between the respective left and between the right end, the frame 1 after the second vertical frame 4, respectively, constitute a rectangular frame frame by connecting at right angles before the frame S , one by one each on opposite ends an extension of the frame 1 and the previous frame S after a length of about 30 cm, the first extension frame 5 of a total of four and a length of about 10cm and consolidated, wider than the bearing width of the wheelchair constitute mutually parallel frame of length about 50 cm, one by one on both ends of the frame, and connecting the four pieces of cheese Pas Eve joint T.

Facing at about 20cm interval, between a pair of cheese Pas Eve joint Т across the pair of cheese Pas Eve joint Т the previous frame S at both ends of the rear frame 1, so that the right angle to the front frame S and the rear frame 1, also 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. said frame third, fourth vertical frames connected in parallel to each other at right angles to the N, the front end side of the frame and handle frame H, the rear end arm portion a and the arm a pair of frames Part B was designated.

The second extension frame 11 at the other end of the arm portion A and the arm portion B connected at right angles to the arm portion A and the arm portion B, as second extension frame 11 comprising a third, parallel to the fourth longitudinal frame 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.

Wherein in a state where the frame member was lay horizontally rectangular, when the arm portion A and the arm portion B rotates to come to a right angle and perpendicularly standing position relative to the frame the frame of the rectangle, the second extension frame 11 inverted L-shaped hook R comprise from about 90 ° internal angle θ with a length of about 5cm from the tip is connected to the second extension frame 11 so as to be perpendicular to the second extension frame 11 a chevron 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. Te, the side of the arm portion a of the rear frame 1 by rotating the handle frame H before side of the front frame S of the rectangular frame member, and rotated in conjunction is B, the interior angle of the reversed L-shaped hooks R Depending on the wheelchair frame 7 And configured to be suspended.

When about 20cm the ground clearance of a general-purpose wheelchair frame 7, the arm portion A, the ground clearance of the respect to the horizontal plane when the standing vertically B to the interior angle of the reversed L-shaped hook R as a chevron, ground frame 7 It was about 15 cm lower than the height.

However, with the size or configuration of the wheelchair front leg suspension system, although the frame N or Mubumen bets about 47cm in length from the reversed L-shaped hooks R to handle frame H, since the previous frame S is also serves as a supporting frame, The handle frame H and the front frame S are spaced from each other so that the handle frame H and the front frame S can be gripped in front of the footrest while suspended from the wheelchair frame 7 by the inner angle of the inverted L-shaped hook R and restrained by the wheelchair frame 6. It is necessary to allow the back of the hand or fingertips to 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.

To that of the arm frame to the arm portion A and the arm portion B is thin is for increasing the suspension strength of the frame when using the aluminum pipe or the like, also the outer side of the frame member of the arm portion B and the handle frame H is rectangular The reason is that the sliding movement at the cheese pipe joint J of the third and fourth vertical frames N is limited.

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 flop rate P was fixed one by one.

In left and right width of about 8cm rectangular plate P, first the length of the front and rear, has been a long about 22 centimeters than the second vertical frame 4, first, second vertical frame 4 a little more wider the rectangular frame frame is better to be fixed in the plastic India rivets also increases the more strength. In the case plate P is made of metal such as aluminum plate, may put the like fibrous carpet to the contact surface of the plate P which receives the footrest bets in order to prevent such frictional sound between 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.

When about 20cm the ground clearance of a general-purpose wheelchair frame 7, the arm portion A, the ground clearance of the respect to the horizontal plane when the standing vertically B to the interior angle of the reversed L-shaped hook R as a chevron, ground frame 7 About 15 cm lower than the height.

Mubumen bets is provided with an arm portion A and the arm portion B, it is also possible to only the arm B by thick frames consisting Arumipaibu like. However, at this time, the distance from the inverted L-shaped hook R to the handle frame H is about 47 cm.

Mubumen bets Third, fourth vertical frame N to rotate and slide, the slide width arm B and the handle frame H is limited.

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 length of about 20cm between the respective ends, coupled at right angles second vertical frame 12 respectively constitute a rectangular frame, frame 1 after a length of about 30 cm, an extension of each side of the previous frame S 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. connects the fourth longitudinal frame 10 having a length of about 20cm between the ends, to constitute a three Union rectangles become frame as a whole wheelchair width approximately 50cm than the bearing width of the front Symbol third, the fourth 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. concatenates to the X stretching the right angle or the frame 10 to the arm frame C, and connects the interval to the previous frame S from the second extension frame X the tip to be about 45cm, the rectangular When the arm frame C rotates with the frame frame lying horizontally and comes to stand at a right angle and perpendicular to the rear frame 1 and the front frame S , the length of the second extension frame X is about 5 cm long. The inverted L-shaped hook R is connected so that the inverted L-shaped hook R constituting the internal angle θ of 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 movement men with the inner angle of R projecting like a mountain facing the ground and the tip of the inverted L-shaped hook R facing each of the first and second vertical frames 12 at right angles. The arm is suspended from the top of 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, with the size or configuration of the wheelchair front leg suspension system has been to the distance from the inverted L-shaped hook R up to the previous frame S becomes about 45cm, since the previous frame S is also serves as a supporting frame, inverted L-shape the internal angle of the hook R in a state of being restrained by the frame 6 of the wheelchair are suspended from the top to the frame 7 of the wheelchair, the preceding frame S is always required interval to enter the back of the hand or finger away from the footrest preparative tip the wheelchair.

  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.

First, arm A used in the second embodiment, unlike is B, the strength for the present but in the embodiment is the arm frame C is singular, this is Mubumen bets suspension using a thick aluminum pipe or the like It is a premise that there is enough.

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 the vertex of the interior angle of the inverted L-shaped hook R is to come up to the vertical line Atari frame 12 is placed so as not to interfere with rotation of the arm frame C.

In left and right width of about 8cm rectangular plate P, first the length of the front and rear, has been a long about 22 centimeters from the second vertical frame 12, first, second vertical frame 12 a little more wider the rectangular frame frame is better to be fixed in the plastic India rivets also increases the more strength. In the case plate P is made of metal such as aluminum plate, may put the like fibrous carpet to the upper surface for receiving the footrest bets.

A pair third, between fourth vertical frame 10, a rubber cord G so as to cover the top of the pair of plate P 3, and connected to the fourth vertical frame 10, an upper rubber cord G footrest F 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 with the size or configuration of the wheelchair front leg suspension system, front frame S is also serves as a supporting frame, the previous frame S is regularly need gripped interval contains the back of the hand or finger away from the footrest preparative tip the wheelchair.

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 one of the caregiver to move in a stepwise downward in a state in which lay in the plane of the wheelchair front leg suspension device to move the wheelchair front leg suspension system below the footrest bets F. In this case, since the ground clearance of the footrest DOO F is various by use, as the protruding end of the L-shaped hook L does not hit the bottom and the frame 9 of the footrest F, before the free front wheel casters facing forward, The wheelchair 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.

The caregiver under the stairs, with the handle frame H wheelchair front legs suspension system which lay on planes with both hands, the right hand or left hand respectively rotate 90 degrees, the tip of simultaneously Mubumen bets L-shaped hooks L, wheelchair frame by a circle rotates at a right angle direction from the inside to the outside of the left and right frame 7, the arm portion a, since B is going to stand vertically, the L-shaped hook interior angle of the handle frame H by the force of the wrist immediately before Lift higher than 7.

Lift the tip of the L-shaped hooks L with the handle frame H, rotated so as not to contact the frame 7, the tip of the L-shaped hook L is a handle frame H as overhanging 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.

Then stairs under side of the caregiver, when subjected to be the rubber string G below the upper a and the care recipient's foot footrest DOO F, whole L-shaped hooks L and rubber bands wheelchair front leg suspension system Suspended by G and floats 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.

Frame 8 of the footrest F is a general-purpose wheelchairs, but are connected by a frame 9, they become footrest F in some reclining type wheelchair is a movable, a footrest preparative F and the frame 8 without frame 9 May be movable 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. L is suspended, and the footrest F or lower end K of the footrest F is supported by the wide and vertically long plate P from the lower side of the wheelchair and the assistant can hold the front frame S. Can do.

Caregiver is pulled with a previous frame S by inserting the hand wheel chair into the gap between the previous frame S of the tip and the wheelchair front leg suspension system footrest DOO F, going down stairs float in the air to the front wheels of the wheelchair. 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 contrary to the operation of the handle frame H in this case the rotary arm unit A, B on the left and right outer side so as not to contact the frame 7 the tip of the inverted L-shaped hook R outwardly once slightly with the handle H to to the leading edge of the inverted L-shaped hook R rotates the handle frame H to the left and right inside the lift as not exposed to overhang the frame 7, the handle arm unit a, B is hit from the outside to the frame 7 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 rotation of the wheelchair front wheel caster, 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.

Since the conventional wheelchairs can be wheelchair with a new function in the wheelchair front leg suspension system, it is not necessary to newly develop a stair movement wheelchair, also possible simple and inexpensive and convenient for a detachable high .

1 ... Rear frame
2, 4, 12 ... first and second vertical frames
3, 5 ... 1st extension frame
10 ... 3rd and 4th vertical frame
11 ... 2nd extension frame A, B ... Arm part
C ... arm frame F ... footrest preparative <br/> G ... rubber string H ... handle frame J ... cross pipe joint K ... footrest preparative frame lower end L ... L-shaped hooks M, N ... third, fourth vertical frame 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 (3)

a) Ri Rana or short Arumipai flop than the bearing width of the general-purpose wheelchair, and mutually parallel before frame disposed around (S) and the rear frame (1),
A total of four cross pipe joints (J) , one connected to each of the left and right ends of the front frame (S) and the rear frame (1) ;
Four first extension frames (3) connected to the four cross pipe joints (J) for extending the front frame (S) and the rear frame (1) to the left and right sides ;
Of the four first extension frames (3) , the front frame (S) and the rear frame (1) are connected between the ends of the two first extension frames (3) for extending leftward. A first vertical frame (2) and a second vertical frame connected between ends of two first extension frames (3) for extending the front frame (S) and the rear frame (1) to the right side. Frame (2) and
A rectangular frame consisting of
b) Out of the four cross pipe joints (J) , the two cross pipe joints (J) connected to the left end of the front frame (S) and the left end of the rear frame (1) can be rotated at both ends. Both ends are rotatably inserted into the third vertical frame (M) inserted into the frame and two cross pipe joints (J) connected to the right end of the front frame (S) and the right end of the rear frame (1). The fourth vertical frame (M),
c) Aluminum made between the first vertical frame (2) and the third vertical frame (M), and between the second vertical frame (2) and the fourth vertical frame (M). A pair of plates (P);
d) The third vertical frame (M) and the fourth vertical frame (M) inserted into the cross pipe joints (J) at the front ends of the third vertical frame (M) and the fourth vertical frame (M), respectively. A pair of handle frames (H) having handle portions that rotate integrally with each other and extend in a direction perpendicular to the third vertical frame (M) and the fourth vertical frame (M) ;
e) The third vertical frame (M) and the fourth vertical frame (J) inserted into the cross pipe joint (J) at the rear end of each of the third vertical frame (M) and the fourth vertical frame (M). M) Two pieces that rotate integrally with each other and have a pair of arm portions (A, B) perpendicular to the third vertical frame (M) and the fourth vertical frame (M) and parallel to the handle portion Arm frame ,
f) two second extension frames (11) parallel to the third and fourth longitudinal frames (M), one connected to each of the ends of the two arm frames;
g) two L-shaped hooks (L) connected to each of the rear ends of the two second extension frames (11).
With
When the third and fourth vertical frames (M) are rotated and the arms (A, B) are made vertical with the frame frame lying horizontally, the L-shaped hook (L) is upward. It is configured to form a convex chevron,
The frame frame is inserted below the pair of footrests (F) of the wheelchair so that the pair of handle frames (H) is positioned on the front side of the wheelchair, and the pair of handle frames (H) is rotated to When a pair of L-shaped hooks (L) are suspended from the upper side of the left and right frames (7) of the wheelchair, the handle frame (H) and the front frame (S) are placed in front of the footrest (F). the plate with position (P) is constructed so that perception wheelchair footrest (F) is from below, by gripping the front frame (S) to support the wheelchair from the footrest (F) side Wheelchair front leg suspension device characterized by being able to perform. a) Ri Rana or short Arumipai flop than the bearing width of the general-purpose wheelchair, parallel to the previous frame to each other, which are arranged one after (S) and the rear frame (1), the front frame (S) and the rear frame (1 A rectangular frame frame composed of first and second vertical frames (4) connected one by one between the left and right ends of
Four first extension frames (5) extending to the left and right sides of the front frame (S) and the rear frame (1) connected to the left and right ends of the front frame (S) and the rear frame (1) ;
A total of four cheese pipe joints (T) connected one by one to the ends of the four first extension frames (5) ;
b) The four cheese pipe joints (T) are rotatably inserted between the two cheese pipe joints (T) located on the left side of the front frame (S) and the rear frame (1). 3 vertical frames (N) and a fourth vertical frame (N) rotatably inserted between two cheese pipe joints (T) located on the right side of the front frame (S) and the rear frame (1) When,
c) Aluminum made between the first vertical frame (4) and the third vertical frame (N) and between the second vertical frame (4) and the fourth vertical frame (N). A pair of plates (P);
d) The third vertical frame (N) and the fourth vertical frame (N) inserted into the cheese pipe joint (T) at the front ends of the third vertical frame (N) and the fourth vertical frame (N), respectively. A pair of handle frames (H) having handle portions that rotate integrally with each other and extend in a direction perpendicular to the third vertical frame (N) and the fourth vertical frame (N) ;
e) The third vertical frame (N) and the fourth vertical frame (N) inserted into the cheese pipe joint (T) at the rear end of each of the third vertical frame (N) and the fourth vertical frame (N). N) Two pieces that rotate integrally with each other and have a pair of arm portions (A, B) perpendicular to the third vertical frame (N) and the fourth vertical frame (N) and parallel to the handle portion Arm frame ,
f) two second extension frames (11) parallel to the third and fourth vertical frames (N), one connected to each of the ends of the two arm frames;
g) two L-shaped hooks (R) , one connected to each of the rear ends of the two second extension frames (11 );
With
When the third and fourth vertical frames (N, N) are rotated to make the arm portions (A, B) vertical with the frame frame lying horizontally, the L-shaped hook (R) Is configured to form a chevron that is convex upward ,
The frame frame is inserted below the pair of footrests (F) of the wheelchair so that the pair of handle frames (H) is positioned on the front side of the wheelchair, and the pair of handle frames (H) is rotated to When the pair of L-shaped hooks (R) is suspended from the upper side of the left and right frames (7) of the wheelchair, the handle frame (H) and the front frame (S) are placed in front of the footrest (F). And the plate (P, P) is configured to receive the footrest (F) of the wheelchair from below, and supports the wheelchair from the footrest (F) side by gripping the front frame (S). A wheelchair front leg suspension device characterized in that a) Ri Rana or short Arumipai flop than the bearing width of the general-purpose wheelchair, parallel to the previous frame to each other, which are arranged one after (S) and the rear frame (1), the front frame (S) and the rear frame (1 A rectangular frame frame composed of first and second vertical frames (12) connected one by one between the left and right ends of
Four first extension frames (5) extending to the left and right sides of the front frame (S) and the rear frame (1) connected to the left and right ends of the front frame (S) and the rear frame (1) ;
b) is connected between the ends of the four first the front frame (S) and two first extension frame extending said frame (1) in the left rear of the extended frame (5) (5) A third vertical frame (10) , and a fourth vertical frame connected between ends of two first extension frames (5) extending rightward from the front frame (S) and the rear frame (1). (10) and
c) Aluminum made between the first vertical frame (12) and the third vertical frame (10) and between the second vertical frame (12) and the fourth vertical frame (10). A pair of plates (P);
d) two cheese pipe joints (T) rotatably inserted in the third vertical frame (10) and the fourth vertical frame (10),
e) a pair of arm frames (C) perpendicular to the third vertical frame (10) and the fourth vertical frame (10) connected to each of the two cheese pipe joints (T) ;
f) the third vertical frame (10) connected to the ends of the pair of arm frames (C) and a pair of second extension frames (X) parallel to the fourth vertical frame (10);
g) a pair of L-shaped hooks (R) provided at ends of the pair of second extension frames (X );
With
The L-shaped hook (R) is configured to form a chevron that protrudes upward when the arm frame (C) is vertical with the frame frame lying horizontally .
The frame frame is inserted under the pair of footrests (F) of the wheelchair, the arm frame (C) is rotated, and the pair of L-shaped hooks (R) are respectively attached to the left and right frames (7 ) when brought into suspension from above, configured so that catch the plate (P, P) is a wheelchair footrest (F) from below together with the front frame (S) is positioned in front of the footrest (F) The wheelchair front leg suspension device is characterized in that the wheelchair can be supported from the footrest (F) side by gripping the front frame (S) .

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