JP2011182911A - Operating lever device for reclining wheelchair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating lever device for reclining which has a shape to be mounted on a position near an armrest in order to reduce burden imposed on the body of a user and to be gripped easily by the user, and also to provide a wheelchair equipped with the same. <P>SOLUTION: An operating lever device for reclining a wheelchair is provided. A lever main inner 15 having a fulcrum bolt hole 13 and a fixing bolt hole 14 is received within a pair of cover bodies 11 and 12 divided in left and right. One end of a lever 18 having a fulcrum bolt hole 13 and a fixing bolt hole 14 that inscribe the fulcrum bolt hole 13 and the fixing bolt hole 14 of the lever main inner 15 is pivoted onto the lever main inner by a fulcrum bolt 19 so as to be rotated freely. An operation bar 20 for operating the lever is attached and fixed to the other end of the lever 18 by an operation bar fixing bolt 21. A gas damper operation wire is attached to the lower end of the lever via a wire holder. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a reclining operation lever device for a passenger in a wheelchair to perform a reclining operation. More specifically, the present invention relates to an operation lever device for reclining a wheelchair in which a reclining lever device can be attached to a lower portion of an armrest so that a passenger in the wheelchair can easily handle the same.

  There are various types of reclining operation levers for operating the reclining of a wheelchair, but many of the reclining operation levers are handled by an assistant. The lever is installed at the rear of the wheelchair, and the reclining operation lever that can be handled by the wheelchair passenger is often not installed.

  The lever of the reclining wheelchair described in Patent Document 1 is described in paragraph [0020] “Furthermore, a single reclining lever 33 (operating part, operating part for adjusting the inclination angle of the backrest 20 is provided at the tip of the left armrest 31. As described above, the reclining lever 33 is connected to the connector 26 via the control cable 25b, so that by operating the reclining lever 33, the fact that It is transmitted to the left and right actuators 24, 24 via the control cables 25a, 25a, 25b and the connector 26, and the piston rods 24b, 24b of these actuators 24, 24 are unlocked at the same time. " A lever is disclosed.

  Paragraph [0026] of Patent Document 2 “In addition, the insertion / removal means 44 of the pin 43 can be configured as follows so that it can be easily operated.

  First, as shown in FIG. 14, a cylindrical member 45 is fixedly aligned with the hole of the outer pipe 41b. Then, the stepped pin 46 and the spring 47 are fitted into the cylindrical member 45, and the lid member 48 is screwed to prevent the pin 46 and the spring 47 from coming off. The pin 46 configured in this way is always urged by a spring 47 in a direction to be inserted into the outer pipe 41. And the wire member 48 is latched to the edge part of this pin 46, and this wire member 48 is latched to the lever member 49 attached to the handle member 12 grade | etc., For example. If comprised in this way, the insertion / extraction of the pin 46 can be easily performed similarly to operations, such as reclining. And a reclining mechanism in which the reclining operation is performed only by the rear lever.

  The reclining mechanism of Patent Document 3 states in paragraph [0065] “In the normal state shown in FIG. 2, each of the gas dampers 2 and 2 is such that the piston rod 22 is locked to the cylinder 21, and the above-described reclining lever 31 is operated. Then, the lock is released, and an urging force is generated in the direction in which the gas dampers 2 and 2 extend.In FIG. 4, reference numeral 311 indicates an operation wire extending from the reclining lever 31. " Has been. That is, the reclining mechanism of Patent Document 3 is operated only by the reclining lever 31 attached under the armrest.

  Paragraph [0031] of Patent Document 4 states that “the function of the wheelchair of this embodiment is that the seat frame 76 is pivotally supported by the swing coupling portion 78 and the damper support portion 96 of the coupling member 84 of the seat frame 76. Due to the damper 58 between the connecting bar 20 and the damper support portion 60 that connects the side frames 18 of the vehicle body frame 16, the seat frame 76 is inclined about 5 ° forward from about a horizontal position and about 15 ° backward. The position of the damper 58 is adjusted so that the damper 58 is unlocked by one of a pair of release levers 188 connected to the damper 58 and can be swung. At that position, the release lever 188 is released to fix. "A reclining device is disclosed.

  The reclining operation of Patent Document 5 is described in paragraph [0014] as follows: “FIG. 2 shows the reclining wheelchair 100 in a reclining state. When the reclining grip 20 mounted under the handle 19 is gripped toward the handle 19, The telescopic member 22 is released, and the backrest frame 17 can be tilted backward or returned to its original position. "As described, the reclining attached under the handle 19 at the rear of the wheelchair. A reclining operation is performed by the grip 20.

  As disclosed in the above-mentioned patent documents, in general, a lever device for operating a reclining of a wheelchair is often attached to the rear portion of the wheelchair so that a wheelchair assistant can easily handle the lever device. An operation lever of a reclining device installed for handling by a wheelchair occupant is installed at the tip of an armrest of the wheelchair as disclosed in Patent Documents 1 and 3 above. However, these shapes are difficult to handle by passengers who are physically handicapped, and there is a risk of falling backwards by holding the lever in the case of a saddle. When a passenger in a wheelchair performs a lever operation of a reclining device, it is desired to emerge a safe operation lever device that is easy to grip.

Japanese Patent Laid-Open No. 2003-062015 Japanese Patent Laid-Open No. 2005-168853 JP 2005-279085 A JP 2006-167099 A JP 2006-246990 A

  In view of the above-described facts, the present invention provides an operation lever device for reclining that is safe for a passenger with a physical disability and is safe for a lever device for operating the reclining of a wheelchair. In addition, the reclining operation lever device can be installed at a position that is easy to grip, close to the tip of the armrest that does not place a burden on the body when the occupant performs the reclining operation. Provided is a safe reclining control lever device that does not operate even if it is gripped in the case of a saddle, and a wheelchair equipped with it.

  The lever device for operating the wheelchair reclining is designed so that it can be mounted in a position that is easy for a passenger with a physical disability to handle, and when the passenger performs a reclining operation, the body is easy to grip and operate. In order to provide a control lever device for reclining that does not operate even if it is gripped, it has been studied earnestly.

  A feature of the present invention is that a lever body inner in which a fulcrum bolt hole and a fixing bolt hole are drilled is accommodated in a pair of cover bodies divided into left and right, and the fulcrum inscribed in the fulcrum bolt hole and the fixing bolt hole of the lever body inner One end of a lever bar having a bolt hole and a fixing bolt hole is pivotally attached by a fulcrum bolt, and an operation bar for operating a lever is attached to the other end of the lever bar. An operation lever device for reclining a wheelchair in which a gas damper operation wire is attached via a wire holder, wherein the lever rod is inscribed in a fixing bolt hole in the lever body inner when the reclining lever is not operated. An operation lever device for reclining a wheelchair, wherein the operation lever can be fixed by inserting a fixing bolt into the fixing bolt hole.

  Another feature of the present invention is characterized in that a pin to be inserted into a fixing bolt hole of a lever rod in an inner lever body of an operation lever device for reclining a wheelchair and a lever for operating insertion / removal of the pin are attached. An operation lever device for reclining a wheelchair according to claim 1. A lever for inserting / removing a pin for fixing the operation lever device for reclining was installed to make it easier for passengers to fix and release the operation lever device for reclining.

  Another feature of the present invention includes a pair of front casters that can rotate at the front, a pair of main wheels at the rear, and a pair of fall prevention mechanisms that can adjust the length at the rear of the main wheels. A reclining self-propelled wheelchair having a tilt mechanism, wherein the height of the seat can be adjusted by changing the axial position of the axle of the main wheel and the front caster. This is a reclining wheelchair characterized in that an operating lever device is installed.

  Another feature of the present invention includes a pair of front casters that can rotate at the front, a pair of main wheels at the rear, and a pair of fall prevention mechanisms that can adjust the length at the rear of the main wheels. A reclining self-propelled wheelchair having a tilt mechanism, wherein the height of the armrest of the wheelchair is adjustable by changing the axial position of the axles of the main wheels and the front casters. A reclining wheelchair characterized in that it is equipped with an operating lever device for reclining a wheelchair according to the present invention.

  By installing the reclining control lever device under the armrest of the wheelchair, the reclining operation can be operated by the passenger himself. Further, the grip portion can be changed according to the condition of the occupant by changing the direction and shape of attachment of the grip portion of the operation lever device for reclining. In addition, by installing a bolt to fix the operating lever, the lever is fixed with a fixing bolt when it is not necessary, so that a safe reclining lever device is provided so that the backrest will not fall down even if it is accidentally grasped.

The exploded perspective view of the operation lever device main part for reclining is shown. The perspective view which attached the lever for lever fixing to the operation lever apparatus for reclining is shown. The side view of the operation lever device for reclining is shown in a state where the lever for lever fixing is removed. The side view of the shape of the holding part of the operation lever apparatus for reclining is shown. The side view of the reclining wheelchair equipped with the operation lever device for reclining is shown. The side view of the reclining wheelchair equipped with the operation lever device for reclining is shown. The side view of the reclining wheelchair which equipped with the operation lever apparatus for reclining which can adjust the height of an armrest is shown. The side view of the reclining wheelchair equipped with the fall adjustment mechanism which can adjust length, and the operation lever for reclining is shown. The side view which adjusted the height of the seat part of the reclining wheelchair equipped with the operation lever device for reclining is shown.

  Hereinafter, an operation lever device for reclining according to the present invention and a reclining wheelchair equipped with the operation lever device for reclining are exemplified, but the present invention is not limited to the following embodiments.

  FIG. 1 is an exploded perspective view of an operation lever device 100 for reclining according to the present invention. A lever main body inner 15 having a fulcrum bolt hole 13 and a fixing bolt hole 14 formed therein is accommodated in a pair of cover bodies 11 and 12 divided into left and right, and fixed with cover bolts 16 and 17. One end of a lever lever 18 having a fulcrum bolt hole 13 and a fixing bolt hole 14 which are inscribed in the fulcrum bolt hole 13 and the fixing bolt hole 14 of the lever main body inner 15 is pivotally mounted by a fulcrum bolt 19. An operating rod 20 for operating the lever is attached to the other end of the lever lever 18 of the lever and fixed with an operating rod fixing bolt 21. This is an operation lever device 100 for reclining a wheelchair in which a gas damper operation wire 23 is attached to the lower end portion of the lever lever 18 of the lever via wire holders 22 and 22. When the operation lever device 100 for reclining is not operated, the lever main body fixing bolt 24 is inserted into the fixing bolt hole 14 of the lever bar inscribed in the fixing bolt hole 14 of the lever main body inner 15 so that the lever of the operating lever is used. 18 is fixed. When the operation lever device 100 for reclining is put into use, the lever main body fixing bolt 24 is removed from the fixing bolt hole 14 and screwed into a hole 24 a formed below the fixing bolt hole 14 and stored.

  FIG. 2 is a perspective view in which an operation lever fixing lever 41 for fixing the operation lever is attached instead of the lever main body fixing bolt 24. In FIG. 2 (2-1), when the lever 41 a of the operation lever fixing lever 41 is lowered, the pin 41 c (see FIG. 3) is inserted into the fixing bolt hole 14 of the lever bar 18 and the lever bar 18 is fixed. As shown in FIG. 2 (2-2), when the lever 41a of the operating lever fixing lever 41 is raised, the pin 41c (see FIG. 3) is pulled out from the fixing bolt hole 14 of the lever bar 18, and the lever bar 18 is moved. The reclining operation lever device 100 is opened and reclining is possible.

  FIG. 3 shows a state in which the pin 41 c of the operation lever fixing lever 41 is removed from the fixing bolt hole 14 of the lever bar 18 instead of the lever main body fixing bolt 24. When the lever 41a of the operating lever fixing lever 41 is raised, the pin 41c is removed from the fixing bolt hole 14 of the lever bar 18 and the lever bar 18 is rotatable as shown by the dotted line. When the operation lever fixing lever 41 is lowered, the pin 41c is inserted and the lever bar 18 is fixed. If the operation lever device 100 for reclining is accidentally touched, the backrest will not tilt later, and the armrest can be gripped with peace of mind. By installing the operating lever fixing lever 41 in place of the lever main body fixing bolt 24, the passenger himself can fix and release the operating lever device 100 for reclining.

  FIG. 4 shows a side view of grip portions having different shapes of the operation lever device 100 for reclining. The operation lever device 100 for reclining according to the present invention can change the shape of the grip portion in accordance with the medical condition of the passenger. FIG. 4 (4-1) shows an example in which the operation lever device 100 for reclining of the present invention is mounted under the armrest 25. Normally, the operation lever device 100 for reclining of the present invention is constructed such that the lever operation rod 20 is attached to the backrest 26 (see FIG. 5, the inside of the wheelchair) under the armrest 25 of the wheelchair. When the operation rod 20 is pulled up, the wire 23 is pulled and the angle of the backrest 26 (see FIG. 6) can be changed. As shown in FIG. 4 (4-2), the operating rod 20 can be attached toward the outside of the wheelchair for a passenger who is easier to operate when the arm is extended. Further, as shown in FIG. 4 (4-3), the lever operation can be facilitated by extending the operation rod 20 for passengers with weak gripping power. Furthermore, as shown in FIG. 4 (4-4), a passenger who is difficult to grasp can be operated by changing the operation rod into a ring shape and hooking a finger.

  FIG. 5 shows a side view of a reclining wheelchair 200 equipped with the reclining operation lever device 100 of the present invention. The reclining wheelchair 200 equipped with the operation lever device 100 for reclining according to the present invention has an armrest 25 at the upper part, a footrest 39 at the lower front part, and a backrest 26 at the upper part at the rear part with a headrest 27. The main body frame 38 and the lower frame 40 having casters 32 and large wheels 33 attached to the lower portion of the main body frame 38 are configured substantially symmetrically, and the left and right frames are connected by a cross frame 36 and folded. be able to.

  FIG. 6 shows a side view of a reclining wheelchair 200 equipped with the reclining operation lever device 100 of the present invention. As shown in FIG. 6 (6-1), the reclining operation lever device 100 of the present invention is attached to the lower part of the armrest 25 attached to the upper part of the main body frame 38. As shown in (6-2), the occupant moves the reclining lever operating rod 20 attached to the lower portion of the armrest 25, as shown in (6-2). Adjust the angle.

  FIG. 7 shows a side view of a reclining wheelchair 200 equipped with an operation lever device 100 for reclining with adjustable armrest height. Since the operation lever device 100 for reclining of the present invention is connected to the lower portion of the armrest 25 attached to the upper portion of the main body frame 38 by a wire (wire holder 22), as shown in FIG. 7 (7-1). The height of the armrest 25 can be adjusted by moving the armrest 25 up and down. To move the armrest 25 up and down, as shown in FIG. 5 (7-2), raise the pin lever 25 a (make it parallel), pull out the pin from the hole in the pipe 25 b, and move the pipe 25 b up and down to raise the height. After adjusting and inserting the pin, the lever 25a is returned to the original position (turned downward).

  FIG. 8 shows a side view of a reclining wheelchair 200 equipped with a length-adjustable fall prevention mechanism and an operation lever device 100 for reclining. FIG. 8 (8-1) shows a state where the backrest 26 is tilted to the maximum during reclining. When the backrest 26 is tilted backward, there is a risk that the load moves backward and falls. In order to prevent an unstable state by tilting the backrest 26 backward, as shown in FIG. 8 (8-2), the fixing pin 35 b of the fall prevention mechanism 35 is pulled out and the inner pipe 35 a is pulled out to prevent the fall. The mechanism 35 moves rearward, and the wheelchair 200 can be stably held.

  A reclining wheelchair 200 equipped with the operating lever device 100 for reclining of the present invention is shown in FIG. FIG. 9 (9-2) shows a side view in which the height of the seat portion of the reclining wheelchair 200 equipped with an operation lever device for reclining is adjusted. The height of the seat of the reclining wheelchair is adjusted by fixing the wheels 31 and 32 by aligning a plurality of bearing holes drilled in the caster wheel bearing 34 part and the large wheel bearing 33 part at arbitrary positions. Thus, the height of the seat portion of the reclining wheelchair 200 can be adjusted.

100: Reclining operation lever device 200: Reclining wheelchair 11 equipped with a reclining operation lever device 11: Cover 12: Cover 13: Support bolt hole 14: Fixing bolt hole 15: Lever body inner 16: Cover fixing bolt 17: Cover Fixing bolt 18: lever rod 19: fulcrum bolt 20: operation rod 21: operation rod fixing bolt 22: wire holder 23: gas damper operation wire 24: lever body fixing bolt 25: armrest 26: backrest 27: headrest 28: assistant Grip 29: Headrest fixing knob screw 30: Back metal fitting 31: Large wheel 32: Caster wheel 33: Large wheel bearing 34: Caster wheel bearing 35: Fall prevention mechanism 36: Cross frame 37: Skirt guard 38: Main body frame 39: Footless 40: lower frame 41: the operating lever fixing lever

Claims (4)

  A lever body inner with a fulcrum bolt hole and a fixing bolt hole drilled in a pair of cover bodies divided into left and right, and a fulcrum bolt hole and a fixing bolt hole inscribed in the fulcrum bolt hole and fixing bolt hole of the lever body inner A lever rod is pivotally attached to one end of the lever rod with a fulcrum bolt, an operation rod for operating the lever is attached to the other end of the lever rod, and a gas damper is attached to the lower end portion of the lever rod via a wire holder. An operation lever device for reclining a wheelchair in which an operation wire is installed, and when the operation lever for reclining is not operated, the fixing bolt hole of the lever rod inscribed in the fixing bolt hole of the lever main body is An operation lever device for reclining a wheelchair, wherein the operation lever can be fixed by inserting a fixing bolt.   2. A pin to be inserted into a fixing bolt hole of a lever rod in an inner lever body of an operation lever device for reclining a wheelchair, and an operation lever fixing lever for operating insertion / removal of the pin. An operation lever device for reclining a wheelchair as described.   A reclining-type self having a tilt mechanism having a pair of front casters capable of rotating at the front, a pair of main wheels at the rear, and a pair of fall prevention mechanisms capable of adjusting a pair of lengths at the rear of the main wheels. The reclining of a wheelchair according to any one of claims 1 and 2, wherein the wheelchair is a wheelchair capable of adjusting a seat height by changing an axial attachment position of the axle of the main wheel and the front caster. A reclining wheelchair characterized in that an operating lever device is installed.   The reclining wheelchair according to claim 3, wherein the height of the armrest can be adjusted.

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