JP2010099453A - Assisting tool for wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assisting tool for a wheelchair, which allows a user to keep sitting comfortably on the wheelchair for a fixed time by supporting his/her pelvises or backside thighs and also preventing his/her ischial bones from being deviated forward on a seat surface, so as to allow him/her fall from the wheelchair when a non-robust person sits on the wheelchair. <P>SOLUTION: The assisting tool for the wheelchair includes: juxtaposed right and left side frames 2; slide rods 3 with fittings, attached to the rear parts of the respective side frames 2; a pelvis support 4 arranged between the upper rear parts of the right and left side frames 2; a thigh support slidably arranged between the right and left side frames 2; an auxiliary seat surface 6 attached onto the thigh support and a part between the right and left side frames 2; and lock pieces 7 attached to the rear ends of the respective side frames 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an assisting device used in a wheelchair, and particularly used on a seating surface of a wheelchair. When an unhealthy person such as a sick person, an elderly person, or a disabled person sits in a wheelchair, the person's Wheelchair aids that support the pelvis, support the thighs on the back of the knee, and prevent the sciatic bone from sliding forward from the wheelchair and sliding down from the wheelchair for a certain period of time. Is.

  Wheelchairs are used for non-healthy persons such as the sick, elderly, and disabled people to move while sitting, and the backrest and seat are easily folded in the center so that they can be easily carried on a car. Many of them are structured. For this reason, the structure of the backrest and the seating surface has a simple structure so that it can be easily folded, and as a result, the seating comfort is sacrificed.

JP 02-46845 A

  By the way, when non-healthy people such as sick people, elderly people, and disabled people sit in wheelchairs, it is difficult for many non-healthy people sitting in wheelchairs to support their trunk on the wheelchair seat over time. And the trunk leans forward and twists in the wheelchair, creating a gap between the lower backrest of the wheelchair and the pelvis of the unhealthy person (see FIG. 15), and the pelvis is not supported, and is painful. As a result, it was difficult to keep sitting comfortably in a wheelchair for a certain period of time. In addition, the tilt was twisted, and the sciatic side shifted to the front side on the seating surface and could fall off the wheelchair.

  In view of the above-mentioned problems, the present invention was created to solve the problems, and the object of the present invention is when a non-healthy person such as a sick person, an elderly person, or a disabled person sits in a wheelchair. In addition, the person's pelvis is supported, the thighs on the back of the knee are supported, and the sciatic side is prevented from slipping forward from the wheelchair on the seating surface. The purpose is to provide wheelchair aids.

  In order to solve the above-mentioned problems, the invention of claim 1 is used by being placed on a seating surface of a wheelchair, and a slide rod with a stopper on the rear side of each of the left and right side frames arranged side by side. The pelvis support that supports the pelvis of the person sitting in the wheelchair by tilting in the front-rear direction in conjunction with the front-rear slide of the slide rod while being supported by the backrest of the wheelchair is attached to the left and right sides. The lower part of the pelvis support is pivotally supported on each of the left and right slide collars so as to be tiltable in the front-rear direction, and the front side of the left and right side frames. The thigh support that supports the thigh near the back of the knee of a person sitting in a wheelchair is slidable in the front-rear direction, and the overhanging saddle with left and right stoppers provided on both side ends of the thigh support is Attached to the front side of each right side frame so as to be slidable in the front-rear direction, and an auxiliary seating surface with a function of preventing sciatic slipping for a person sitting in a wheelchair is placed on the thigh support and between the left and right side frames. A locking piece is provided at the rear end of each side frame so that the left and right side frames are moved to the front side of the seat surface of the wheelchair and locked to the rear end of the seat surface. It consists of attached means.

  Further, the invention of claim 2 is used by being mounted on a seat surface of a wheelchair, and a slide rod with a stopper is slidable in the front-rear direction on the rear side of each side frame arranged side by side. The pelvic support that supports the pelvis of the person sitting in the wheelchair by tilting in the front-rear direction in conjunction with the front-rear slide of the slide rod while being supported by contact with the backrest of the wheelchair is attached to the upper part of the rear side of the left and right side frames A person who sits in a wheelchair between the front sides of the left and right side frames, and is provided between the two, and the lower portions of both sides of the pelvis support are pivotally supported on the left and right slide rods with respective stoppers so as to be tiltable in the front-rear direction. The thigh support that supports the thigh near the back of the knee is provided to be slidable in the front-rear direction, and the overhanging collars with left and right stoppers provided on both ends of the thigh support are provided on the left and right side frames. Attached to the front side in a slidable manner in the front-rear direction, an auxiliary seating surface having a function of preventing sciatic slipping of a person sitting in a wheelchair is attached over the thigh support and between the left and right side frames. A locking bar is provided between the rear end sides of the left and right side frames to prevent the side frame from moving to the front side of the seat surface of the wheelchair. It consists of attached means.

According to the wheelchair assisting device according to the present invention provided with means for solving the above problems, it is difficult for many non-healthy persons to support their trunks on the wheelchair seat over time. Therefore, place the pelvic support in an arbitrary gap between the lower backrest of the wheelchair and the pelvis of the unhealthy person, and tilt the pelvic support by back and forth sliding to hit the pelvic side of the unhealthy person. The non-healthy person's pelvis can be reliably supported by the pelvic support.
In addition, the thighs on the back of the knee that protrude from the front edge of the wheelchair seating surface due to the fact that many non-healthy people have difficulty supporting their trunk on the wheelchair seating surface over time. Can be reliably supported by the thigh support slid forward.
Furthermore, it is possible to prevent the sciatic side of a non-healthy person sitting on the auxiliary seating surface from shifting to the front side by the auxiliary seating surface having an anti-sciatic function.
In this way, when a non-healthy person such as a sick person, an elderly person, or a disabled person sits in a wheelchair, the person's pelvis is supported, the thighs on the back of the knee are supported, and the sciatic side is shifted forward on the seat surface. Thus, the non-healthy person a can keep sitting in the wheelchair comfortably for a certain period of time, and thus has a very new beneficial effect.

It is a side view of the use condition which mounts the wheelchair auxiliary tool which shows the form for implementing this invention on a wheelchair. It is a side view of the auxiliary tool for wheelchairs which shows the form for carrying out this invention. It is a partially notched top view of the auxiliary tool for wheelchairs which shows the form for implementing this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially cutaway front view of a wheelchair aid showing a form for carrying out the present invention. It is a bottom view of the framework of the auxiliary tool for wheelchairs which shows the form for carrying out this invention. It is a rear view of the framework of the auxiliary tool for wheelchairs which shows the form for carrying out this invention. It is AA arrow sectional drawing of FIG. It is a side view of the use condition which mounts the auxiliary tool for wheelchairs of the other example which shows the form for implementing this invention on a wheelchair. It is a side view of the auxiliary tool for wheelchairs of the other example which shows the form for implementing this invention. It is a partially notched top view of the auxiliary tool for wheelchairs of the other example which shows the form for implementing this invention. It is a partially notched front view of the wheelchair aid which shows the form for implementing this invention. It is a bottom view of the framework of the auxiliary tool for wheelchairs of other examples showing the form for carrying out this invention. It is a rear view of the framework of the auxiliary tool for wheelchairs of other examples showing the form for carrying out this invention. It is AA arrow sectional drawing of FIG. It is conventional explanatory drawing.

Hereinafter, the present invention will be described more specifically based on embodiments for carrying out the invention described in the drawings.
In the figure, the wheelchair auxiliary tool 1 is used on a seating surface 91 of a wheelchair 9, and when a non-healthy person a such as a sick person, an elderly person, or a disabled person sits on the wheelchair 9, the unhealthy person a The non-healthy person a sits in the wheelchair 9 comfortably for a certain period of time by preventing the non-healthy person a from sliding off the wheelchair 9 by shifting the sciatic side of the unhealthy person a forward on the seating surface 91. Features that can continue.

  The wheelchair auxiliary device 1 includes a left and right side frame 2 arranged side by side, a slide rod 3 with a stopper attached to the rear side of each side frame 2, and an upper portion on the rear side of the left and right side frames 2. A pelvic support 4 provided on the left side, a thigh support 5 provided slidably between the left and right side frames 2, and an auxiliary seat mounted on the thigh support 5 and between the left and right side frames 2 Surface 6, a locking piece 7 attached to the rear end of each of the left and right side frames 2, or a hook mounted in a horizontal manner between the rear end sides of the left and right side frames 2 instead of the locking piece 7 It comprises a stop bar 8 and the like.

  The left and right side frames 2 constitute the left and right side ends of the wheelchair aid 1 and are arranged in parallel. When the wheelchair auxiliary device 1 is placed on the seat surface 91 of the wheelchair 9, the wheelchair auxiliary device 1 is placed on both width sides of the seat surface 91 such that the length direction of the side frame 2 faces the front-rear direction of the seat surface 91. For this reason, the interval between the left and right side frames 2 is large enough to fit within the width of the seating surface 91 of the wheelchair 9. For example, metal circular hollow tubes are used for the left and right side frames 2 so as not to be deformed even if the unhealthy person a sits on the upper side.

  On the rear side of each of the left and right side frames 2 arranged side by side, a slide rod 3 with a stopper is slidably attached in the front-rear direction. The slide rod 3 with a stopper fulfills a function of changing the inclination of the pelvis support 4 by sliding in the front-rear direction along the side frame 2. Each slide rod 3 with a stopper has a structure that can slide in the length direction of the side frame 2, that is, along the front-rear direction. That is, each slide rod 3 with a stopper is structured to be slidable in the front-rear direction of the seat surface 91 of the wheelchair 9.

  Each slide rod 3 with a stopper is externally mounted on the side frame 2. That is, each slide rod 3 with a stopper has a hollow through hole formed therein, and the side frame 2 is inserted through the through hole. Since the outer cross section of the side frame 2 is circular, for example, the cross section of the through hole of the slide rod 3 with a stopper is also circular.

  Each stoppered slide rod 3 is composed of a lever-type stopper 31 on the front half side and a bearing cylinder 32 on the rear half side. A hollow through hole is formed in the lever-type stopper 31. Similarly, a hollow through hole is formed in the bearing cylinder 32.

  The lever-type stopper 31 is fixed so that it does not move by fixing a slide rod 3 with a stopper that slides freely back and forth. A lever 31a is attached to the upper side of the lever-type stopper 31, and the slide rod 3 with the stopper can be fixed by pushing the lever 31a pulled up downward. The fixed state can be easily released by pulling up the lever 31a that has been forcibly pulled down, and the slide rod 3 with a stopper can be freely slid back and forth by releasing the fixation.

  Bearings 33 are integrally fixed upward on the upper surface of the bearing cylinder 32 on the rear half side of each slide rod 3 with a stopper. Lower ends on both sides of the pelvis support 4 are attached to the respective bearings 33 of the slide rods 3 with left and right fasteners via the pivot shaft 34 so as to be rotatable in the front-rear direction. The lower ends of both sides of the pelvis support 4 are supported by the bearings 33 in a free state in which no restriction is imposed on the rotation, and the angle of the pelvis support 4 is adjusted by sliding the slide rod 3 with a stopper back and forth. Is called.

  That is, since the rear side of the pelvis support 4 is supported by the backrest 92 of the wheelchair 9, if the slide rod 3 with a stopper is slid forward, that is, if it is moved away from the backrest 92, the pelvis support 4 The angle of 4 becomes gentle in the direction of falling. On the other hand, when the slide rod 3 with a stopper is slid rearward, that is, moved in a direction approaching the backrest 92, the angle of the pelvis support 4 becomes a direction to rise up vertically.

  Thus, the pelvis support 4 is structured to tilt in the front-rear direction in conjunction with the front-rear slide of the slide rod 3 with a stopper while being supported by the backrest 92 of the wheelchair 9. This is because the rear side of the upper side of the pelvis support 4 is always abutted and supported by the backrest 92 of the wheelchair 9, whereas the lower end side of the fork pelvis support 4 is a bearing cylinder of the slide rod 3 with a stopper that slides back and forth. This is because the bearings 32 are rotatably supported by the bearings 33.

  The pelvic support 4 is located in an arbitrary gap formed between the lower portion of the backrest 92 of the wheelchair 9 and the pelvis of the unhealthy person a, and reliably supports the pelvis of the unhealthy person a without causing pain. . The pelvis support 4 is provided between the upper parts on the rear side of the left and right side frames 2. Further, as described above, the lower portions on both sides of the pelvis support 4 are pivotally supported by the bearings 33 on the bearing cylinders 32 of the left and right slide rods 3 with stoppers via the pivot shafts 34 so as to be tiltable in the front-rear direction. .

  The pelvis support 4 includes a vertical frame 41 juxtaposed on the left and right sides, a horizontal frame 42 horizontally disposed on the upper side between the left and right vertical frames 41, and an auxiliary frame horizontally disposed between the left and right vertical frames 41. The seat includes a back seat 43 and a plurality of back support belts 44. For example, a metal circular hollow tube is used for the vertical frame 41 and the horizontal frame 42 as in the case of the side frame 2, and the same material and diameter are used.

  The circular lower end sides of the left and right vertical frames 41 are deformed in a V shape toward the lower end so that the thickness on the side in the width direction is easily supported by the bearing 33 of the bearing tube 32 of the slide rod 3 with a stopper. The lower end portion that is narrowed and supported by the shaft is deformed into a plate shape. A hole for pivotally supporting the bearing 33 is formed in the center of the plate-like lower end portion, and the pivotal shaft 34 passes through the hole and is pivotally supported by the bearing 33. The left and right vertical frames 41 are rotatable by the pivot shaft 34 and the bearing 33 without being constrained in the front-rear direction around the pivot shaft 34.

  The horizontal frame 42 laid horizontally between the upper sides of the left and right vertical frames 41 is a portion that is directly contacted and supported by the backrest 92 of the wheelchair 9 and is bent in an arc toward the rear side. 4 is bent along the shape of the pelvis of the unhealthy person a supported by 4. Since the horizontal frame 42 is bent in an arc shape, the pelvic side of the unhealthy person a can be gently supported, and there is no pain.

  The auxiliary backrest sheet 43 laid sideways between the left and right vertical frames 41 is a part that directly supports the pelvic side of the unhealthy person a, and is attached so that the central part is slightly bent. It can gently support the pelvic side and does not cause pain. Further, on the rear surface side of the auxiliary backrest sheet 43 between the left and right vertical frames 41, a plurality of backrest support belts 44 that support the rear surface side of the auxiliary backrest sheet 43 are bent in the lateral direction in a state where the central portion is slightly bent. Is attached. The back support belt 44 is attached in a plurality of stages in the vertical direction. Both ends of each back support belt 44 are connected to the rear side of the auxiliary back seat 43 near the left and right vertical frames 41.

  The thigh support 5 supports the thigh near the back of the knee of the unhealthy person a who sits in the wheelchair 9 and is provided between the front side of the left and right side frames 2 so as to be slidable in the front-rear direction. . The unhealthy person a who sits in the wheelchair 9 cannot support his / her trunk and bends toward the fork, so that the pelvic side protrudes forward, and as a result, the back of the knee of the unhealthy person a is also seated on the wheelchair 9 It protrudes from the front end of 91 and the state where the back side of the knee is not supported without getting on the front side of the seating surface 91 of the wheelchair 9 occurs, which causes pain.

  Accordingly, the thigh support 5 is slid forward in correspondence with the protruding back of the knee, so that the protruding back of the knee is supported by the sliding thigh support 5, thereby the wheelchair. The pain which arises in the thigh side of the unhealthy person a who sits on 9 can be eliminated.

  The thigh support 5 is provided between the overhanging collar 51 with stoppers arranged side by side on both right and left ends, between the cylindrical frame 52 of the overhanging collar 51 with stoppers, the male and female cylindrical stoppers 53, and the left and right cylindrical frames 52. A lower horizontal frame 54 laid horizontally, an auxiliary front seat surface sheet 55 laid between the left and right cylindrical frames 52, a plurality of seat surface support belts 56, and the like. For example, a metal circular hollow tube is used for the cylindrical frame 52 and the lower horizontal frame 54 as in the case of the side frame 2, and the same material is used.

  On the front side of the left and right side frames 2 arranged side by side, overhanging rods 51 with stoppers are attached so as to be slidable in the front-rear direction. The overhanging collar 51 with a stopper slides forward along the side frame 2 to move the thigh support 5 provided between the left and right overhanging collars 51 with a stopper in the forward direction. The thigh support 5 is projected from the front end side of the wheelchair assisting tool 1 to support the non-healthy person a below the inner thigh side of the knee. Each overhanging flange 51 with a stopper has a structure that can slide in the length direction of the side frame 2, that is, along the front-rear direction. In other words, each overhanging rod 51 with a stopper is configured to be slidable in the front-rear direction of the seat surface 91 of the wheelchair 9.

  Each overhang barn 51 with a stopper is externally mounted on the front side and the front end of the side frame 2. Each overhanging rod 51 with a stopper includes, for example, a cylindrical tubular frame 52 and a male and female tubular stopper 53 attached to the rear end side of the tubular frame 52.

  A hollow cavity is formed in the tubular frame 52 of each overhanging flange 51 with a stopper, and the front side of the side frame 2 is inserted into the cavity. The front end of the cylindrical frame 52 is closed to prevent the overhanging flange 51 with a stopper from moving toward the rear side of the side frame 2. Since the outer cross section of the side frame 2 is circular, for example, the cross section of the cavity inside the cylindrical frame 52 is also circular. The cylindrical frame 52 is larger in diameter than the side frame 2 so that the side frame 2 can be inserted into the circular hollow.

  The male and female cylindrical stoppers 53 are configured to fix the overhanging rod 51 with a stopper that slides freely back and forth so as not to move, and is constituted by a male screw side 53a and a female screw side 53b. The male screw side 53 a is connected to the rear end side of the cylindrical frame 52. The male and female cylindrical stoppers 53 can fix the overhanging flange 51 with the stoppers by turning the female screw side 53b in the tightening direction. On the contrary, the fixed state can be easily released by turning the female screw side 53b in the loosening direction, and the overhanging flange 51 with the stopper can be freely slid back and forth by releasing the fixation.

  The lower horizontal frame 54 laid horizontally between the cylindrical frames 52 of the overhanging rods 51 with the left and right fasteners corresponds to the bending seat surface 91 at a position where it is directly abutted and supported by the seat surface 91 of the wheelchair 9. Then it is bent in an arc toward the bottom. Since the lower horizontal frame 54 is bent in an arc shape, the thigh support 5 is not raised upward, and thereby the thigh support 5 is supported by the seat surface 91 which is bent without a sense of incongruity.

  The auxiliary front seat sheet 55 laid laterally between the left and right cylindrical frames 52 is a part that directly supports the thigh side of the back of the knee of the unhealthy person a protruding from the seat surface 91, and the central part is It is attached in a tensioned state so as not to bend. Further, on the lower surface side of the auxiliary front seat surface sheet 55 between the left and right cylindrical frames 52, a plurality of seat surface support belts 56 supporting the lower surface side of the auxiliary front seat surface sheet 55 are peened in the left-right width direction. It is attached in a stretched state. Both ends of each seating surface support belt 56 are connected to the lower surface side of the auxiliary front seating surface sheet 55 near the left and right cylindrical frames 52.

  The auxiliary seating surface 6 is attached over the thigh support 5 and between the left and right side frames 2. The auxiliary seating surface 6 can be easily removed simply by being placed on the thigh support 5 and between the left and right side frames 2. Further, the auxiliary seat surface 6 is made of a thick cushioning material, which enhances the sitting comfort when the unhealthy person a sits on the wheelchair 9.

  The auxiliary seating surface 6 has a slightly wider width on the front half side as viewed from above, and the both ends of the thigh support 5 and the front half sides of the left and right side frames 2 are slightly widened when placed. It can be covered. The rear end side of the auxiliary seating surface 6 is narrowed to a width that fits between the left and right vertical frames 41 of the pelvic support 4. For this reason, the width of the auxiliary seat surface 6 is gradually narrowed from the middle toward the rear end side.

  By the way, the unhealthy person a sitting in the wheelchair 9 becomes difficult to support his / her trunk with the passage of time, and the back is bent, and the bent back is supported by being in contact with the backrest 92. Inevitably, the sciaticus protrudes forward, and the greater the degree of bending of the back, the more the sciatic side shifts forward. Therefore, the auxiliary seat surface 6 is provided with a sciatic anti-slip function for preventing the sciatic side of the unhealthy person a sitting in the wheelchair 9 from shifting forward.

  The anti-sciatic function of the auxiliary seating surface 6 corresponds to the shape of the buttocks of the non-healthy person a who sits on the wheelchair 9, that is, the surface of the auxiliary seating surface 6 on the rear side, which is the part on which the buttocks rest. And it consists of the structure of the hollow part 61. FIG. The seat surface on the front side of the auxiliary seat surface 6 on which the buttocks do not rest is slightly higher than the rear side on which the buttocks rest. Due to the presence of the recessed portion 61 on the seat surface on the rear side where the buttocks rest, the downwardly projecting buttocks are locked to the recessed portion 61 and the sciatic bone of the unhealthy person a sitting in the wheelchair 9 is shifted forward. Is prevented.

  1 to 7, the left and right side frames 2 move to the front side of the seat surface 91 of the wheelchair 9 so that the whole wheelchair assisting tool 1 is seated on the wheelchair 9. It prevents movement to the front side of the surface 91, and is attached to the rear ends of the left and right side frames 2, respectively. The locking piece 7 is locked to the rear end of the seating surface 91 of the wheelchair 9, thereby preventing the left and right side frames 2 from moving forward, and the wheelchair auxiliary tool 1 as a whole. Is structured to prevent the wheelchair 9 from moving to the front side of the seating surface 91.

  The locking bar 8 shown in FIGS. 8 to 14 is used instead of the locking piece 7 shown in FIGS. 1 to 7, and each of the left and right side frames 2 is the same as the locking piece 7. The whole wheelchair auxiliary tool 1 is prevented from moving to the front side of the seating surface 91 of the wheelchair 9 through moving to the front side of the seating surface 91 of the wheelchair 9, It is mounted horizontally between the end sides. A part of the locking bar 8 is locked to the rear end of the seating surface 91 of the wheelchair 9 to prevent the left and right side frames 2 from moving forward. The entire assisting tool 1 is structured to prevent the wheelchair 9 from moving to the front side of the seating surface 91 of the wheelchair 9.

  The locking bar 8 that is horizontally mounted between the rear end sides of the left and right side frames 2 is attached so that both ends of the locking bars 8 pass upward through the lower surface of the rear end side of each side frame 2. Each of the side frames 2 extends downward from the lower surface of the rear end side thereof, and is bent at a substantially right angle from the lower surface toward each other and attached in a groove shape. For example, a metal round bar is used as the locking bar 8.

Next, the use method and operation of the wheelchair aid based on the configuration of the embodiment for carrying out the invention will be described below.
Before the unhealthy person a sits on the wheelchair 9, the wheelchair auxiliary tool 1 is placed on the seat surface 91. At this time, in the case of the structure shown in FIGS. 1 to 7, the locking piece 7 at the rear end of the left and right side frames 2 of the wheelchair aid 1 is set so as to be hooked on the rear end of the seat surface 91. . In the case of the structure shown in FIGS. 8 to 14, a locking bar 8 laid horizontally between the rear end sides of the left and right side frames 2 of the wheelchair aid 1 is provided at the rear end of the seat surface 91. The belt is set so as to be hooked, and the attached belt 81 is hung on the locking bar 8 and fixed to a tipping lever of a wheelchair 9 (not shown) provided therebelow.

  Thereafter, the unhealthy person a sits on the wheelchair auxiliary device 1 placed on the seat surface 91. The unhealthy person a becomes difficult to support his trunk with the passage of time, and his back is bent. Since the bent back is supported in contact with the backrest 92, the pelvic side of the unhealthy person a is positioned slightly forward from the rear end of the seating surface 91, and the lower part of the backrest 92 of the wheelchair 9 and the unhealthy A gap is formed between the pelvis of the person a.

  Therefore, the lower end side of the pelvis support 4 is slid forward by the slide rod 3 with a stopper. The lever 31a of the lever-type stopper 31 that fixes the slide of the slide rod 3 with the stopper is lifted upward to release the fixing. The lower ends of the left and right vertical frames 41 of the pelvis support 4 are rotatably supported by bearings 33 of the bearing cylinder 32 of the slide rod 3 with a stopper, and the center of the pelvis support 4 is arcuate toward the rear. Since the horizontal frame 42 is supported in contact with the backrest 92 of the wheelchair 9, the rotation of the horizontal frame 42 is in an unconstrained state, so that the slide rod 3 with a stopper is moved forward along the side frame 2. As a result, the pelvic support 4 is automatically inclined in a direction in which the inclination is gentle.

  A non-healthy person in which the lower side of the pelvic support 4 moves to the front side in conjunction with the front slide along the side frame 2 of the slide rod 3 with a stopper, and the moving pelvis support 4 is sitting on the auxiliary seating surface 6 By abutting on the pelvis side of a, the slide of the slide rod 3 with the stopper is stopped, and the lever 31a of the lever-type stopper 31 that has been pulled upward is pushed downward and returned. Thereby, the slide rod 3 with a stopper is fixed by preventing the front and rear slide.

  In this way, the pelvic support 4 is caused by the fact that many of the unhealthy persons a have difficulty in supporting their trunk on the seat surface 91 of the wheelchair 9 over time. An arbitrary gap is formed between the lower portion of the backrest 92 and the pelvis of the unhealthy person a, and the pelvis of the unhealthy person a is supported by being tilted by the back-and-forth movement.

  In other words, an arbitrary gap formed between the lower portion of the backrest 92 of the wheelchair 9 and the pelvis of the unhealthy person a is caused by the spine of the unhealthy person a being bent and the sciatic side shifting to the front side of the seat surface 91. Similarly, the slide rod 3 is slid to the front side of the seating surface 91, and the inclination of the pelvic support 4 is automatically changed in conjunction with this slide, so that the unhealthy person corresponds to the gap portion. The pelvis a can be reliably supported by the pelvic support 4 without causing pain.

  In addition, when the back is very bent, the sciatic side is located slightly in front of the seat surface 91 of the wheelchair 9, so that the back of the knee is slightly out of the front end of the seat surface 91 of the wheelchair 9. As a result, the thigh near the back of the knee also protrudes from the front end of the seat surface 91 and is not supported. The fact that the thigh near the back of the knee is not supported is painful for the unhealthy person a who has weakened muscle strength.

  Therefore, the thigh support 5 on the front side of the wheelchair assisting tool 1 is slid forward and slightly extended. The female screw side 53b of the male and female cylindrical stoppers 53 for fixing the slides of the overhanging flanges 51 with stoppers on both ends of the thigh support 5 is turned in the loosening direction to release the fixation. The left and right overhanging overhanging rods 51 are slid forward to slightly overhang from the front end side of the side frame 2.

  That is, just before the front end of the thigh support 5 is brought into contact with the bent knee back side of the unhealthy person a, the thigh support 5 is moved and overhanged and turned in the direction of tightening the female screw side 53b of the male and female cylindrical stoppers 53 to stop. Stop the sliding of the overhanging rod 51 with the tool. Thereby, the overhanging rod 51 with a stopper is prevented from being slid back and forth and fixed.

  In this way, the thigh support 5 is caused by the fact that many of the unhealthy persons a have difficulty in supporting their trunks on the seat surface 91 of the wheelchair 9 as time passes. The thigh on the back side of the knee that protrudes from the front end of the seating surface 91 is supported by the thigh support 5 that is slid forward. Thereby, the pain of the unhealthy person a accompanying the thigh near the back of the knee not being supported can be eliminated.

  The present invention is not limited to the embodiment for carrying out the invention, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Wheelchair assistance 2 Side frame 3 Slide rod with a stop 31 Lever type stop 31a Lever 32 Bearing cylinder 33 Bearing 34 Pivot shaft 4 Pelvic support 41 Vertical frame 42 Horizontal frame 43 Auxiliary backrest seat 44 Back support belt 5 Thigh support 51 Overhanging collar with stopper 52 Cylindrical frame 53 Male and female cylindrical stoppers 53a Male thread side 53b Female thread side 54 Lower horizontal frame 55 Auxiliary front seat surface sheet 56 Seat surface support belt 56
6 Auxiliary seat surface 61 Recessed portion 7 Locking piece 8 Locking bar 81 Attached belt 9 Wheelchair 91 Seating surface 92 Backrest a Unhealthy person

Claims (2)

It is used on the wheelchair seating surface, and slide rods with stoppers are slidably attached to the back of each side frame on the left and right side of the side frame so that they can slide in the front-rear direction and support the backrest of the wheelchair In addition, a pelvic support that supports the pelvis of a person sitting in a wheelchair by tilting in the front-rear direction in conjunction with the front-rear slide of the slide rod is provided between the upper parts on the rear side of the left and right side frames, The lower part of each side is pivotally supported on the left and right slide rods with respective stoppers so as to be tiltable in the front-rear direction, and the thighs near the back of the knee of the person sitting in the wheelchair are placed between the front sides of the left and right side frames. The supporting thigh supports are slidable in the front-rear direction, and the overhanging hooks with left and right stoppers provided on both ends of the thigh support are respectively in the front-rear direction on the front side of each of the left and right side frames. Auxiliary seating surface with anti-sciatic function for a person sitting in a wheelchair is attached over the thigh support and between the left and right side frames, and the left and right side frames are attached to the wheelchair. An assisting tool for wheelchair, wherein a locking piece for locking and preventing movement to the front side of the seating surface is attached to the rear end of each side frame. It is used on the wheelchair seating surface, and slide rods with stoppers are slidably attached to the back of each side frame on the left and right side of the side frame so that they can slide in the front-rear direction and support the backrest of the wheelchair In addition, a pelvic support that supports the pelvis of a person sitting in a wheelchair by tilting in the front-rear direction in conjunction with the front-rear slide of the slide rod is provided between the upper parts on the rear side of the left and right side frames, The lower part of each side is pivotally supported on the left and right slide rods with respective stoppers so as to be tiltable in the front-rear direction, and the thighs near the back of the knee of the person sitting in the wheelchair are placed between the front sides of the left and right side frames. The supporting thigh supports are slidable in the front-rear direction, and the overhanging hooks with left and right stoppers provided on both ends of the thigh support are respectively in the front-rear direction on the front side of each of the left and right side frames. Auxiliary seating surface with anti-sciatic function for a person sitting in a wheelchair is attached over the thigh support and between the left and right side frames, and the left and right side frames are attached to the wheelchair. A locking bar for locking and preventing the seat from moving to the front side of the seating surface is attached horizontally across the rear end sides of the left and right side frames. A wheelchair aid.

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