JP3108225U

JP3108225U - Wheelchair drive device

Info

Publication number: JP3108225U
Application number: JP2004006605U
Authority: JP
Inventors: 泰彦徳永
Original assignee: 泰彦徳永
Priority date: 2004-10-13
Filing date: 2004-10-13
Publication date: 2005-04-14
Anticipated expiration: 2010-10-13

Abstract

【課題】車椅子において、駆動輪両側のハンドリムを省き、駆動輪の踏面に沿って前後方向に回動可能として付設した駆動用のパッドを、グリップを介して踏面へ圧接し、駆動輪と共に反復回動して駆動輪の操作を行う車椅子駆動具を提供しようとするものである。
【解決手段】車体両側に駆動輪を軸支した車軸に支桿の基端側を枢支し、同自由端側に操作桿を伸縮摺動自在に嵌設して支桿頂端との間にバネを内装し、操作桿の頂部側位には、駆動輪の踏面外囲へ対向して該踏面側に嵌合可能な凹形のパッドを付設し、同操作桿側中途には、グリップを凸設し、支桿下位に突設した突片と車軸下位に突設した鉤止片との間には、グリップの押圧を解放したとき、初期位側へ復元するため、戻しバネを張架している。
【選択図】図１PROBLEM TO BE SOLVED: To remove a hand rim on both sides of a drive wheel in a wheelchair, press a drive pad attached so as to be capable of rotating in the front-rear direction along the tread surface of the drive wheel and press it against the tread surface via a grip, and repeatedly rotate with the drive wheel. It is intended to provide a wheelchair driving tool that moves and operates a driving wheel.
SOLUTION: A base end side of a support is pivotally supported on an axle in which a drive wheel is supported on both sides of a vehicle body, and an operation rod is slidably fitted on the free end side so that it can be extended and slidable. A spring is built in, and a concave pad that can be fitted to the tread surface side is attached to the top side of the operation rod facing the outer surface of the tread surface of the drive wheel. A return spring is stretched between the projecting piece projecting at the lower part of the support and the retaining piece projecting at the lower part of the axle to restore the initial position when the grip is released. doing.
[Selection] Figure 1

Description

本考案は、車椅子の駆動手段に関するものである。 The present invention relates to a wheelchair drive means.

一般に、普通型の車椅子は、座乗位において、駆動輪（通常大車輪と呼ばれる）の外側に付設したハンドリムを直接把持し、前後に反復回動操作して、前後進、旋回操向を行うものであるが、ハンドリムを直接把持するため、掌とリムとの間に滑り摩擦を伴い、長距離、且つ、強力な駆動力が要求されるとき、掌とリムとの間の滑りや摩擦熱により、掌に支障を生じることがあるため、専用の手袋を使用して掌の皮膚を保護することが行われている。 In general, in a normal wheelchair, in a sitting position, a hand rim attached to the outside of a driving wheel (usually called a large wheel) is directly gripped, and reciprocally rotated back and forth to move forward and backward and turn. However, when the hand rim is directly gripped, sliding friction is caused between the palm and the rim, and when a long distance and a strong driving force are required, sliding and frictional heat between the palm and the rim are required. As a result, there is a possibility that the palm of the hand may be disturbed. Therefore, the gloves of the palm are protected using dedicated gloves.

本考案は、上記の問題に鑑みてなされたものであって、その目的とするところは、車椅子において、駆動輪両側のハンドリムを省き、駆動輪の踏面に沿って前後方向に回動可能として付設した駆動用のパッドを、グリップを介して踏面へ圧接し、駆動輪と共に反復回動して駆動輪の操作を行う車椅子駆動具を提供しようとするものである。 The present invention has been made in view of the above-described problems, and the object of the present invention is to remove the hand rims on both sides of the drive wheel in a wheelchair and to be able to rotate in the front-rear direction along the tread surface of the drive wheel. It is intended to provide a wheelchair driving tool for operating the driving wheel by pressing the driving pad to the tread surface through the grip and repeatedly rotating with the driving wheel.

上記目的を達成するために、本考案における車椅子駆動装置においては、車体両側に駆動輪を軸支した車軸に支桿の基端側を枢支し、同自由端側に操作桿を伸縮摺動自在に嵌設して支桿頂端との間にバネを内装し、操作桿の頂部側位には、駆動輪の踏面外囲へ対向して該踏面側に嵌合可能な凹形のパッドを付設し、同操作桿側中途には、グリップを凸設し、支桿下位に延設した突片と車軸下位に突設した鉤止片との間には、踏面上位に設定したパッドの初期位置へ復元するため、戻しバネを張架してなり、車椅子に座乗して駆動操作を行うとき、グリップを把持し、バネの付勢力に抗してグリップ、操作桿及びパッドを駆動輪の踏面側へ押圧し、同パッドの凹部を踏面側へ嵌合して圧接し、駆動輪踏面に沿って回動して駆動輪を駆動すると共に、駆動操作の行程後に、グリップないしパッドの押圧を解き、バネの付勢力により、パッドを踏面より開放して初期位側へ復帰し、駆動操作を反復可能としている。 In order to achieve the above object, in the wheelchair drive device according to the present invention, the base end side of the support is pivotally supported on the axle that supports the drive wheels on both sides of the vehicle body, and the operation rod is extended and slid on the free end side. A spring pad is installed between the top end of the support rods and a concave pad that can be fitted to the tread side of the driving wheel facing the outer surface of the tread surface of the drive wheel. In the middle of the operation side, a grip is provided, and the initial position of the pad set above the tread is between the protruding piece extending below the support and the locking piece protruding below the axle. In order to restore the position, a return spring is stretched, and when performing a driving operation while sitting on a wheelchair, the grip is gripped, and the grip, operating rod and pad are attached to the driving wheel against the urging force of the spring. Press to the tread side, fit the concave part of the pad to the tread side and press contact, rotate along the tread surface and drive the drive wheel After stroke actuating operation, solving the pressing of the grip to the pad by the biasing force of the spring, and open from the tread pad returns to its initial position side, thereby enabling repeated driving operation.

請求項１の車椅子駆動装置においては、駆動輪のハンドリムを設けず、グリップを介し、バネの付勢に抗して駆動用のパッドを間接的に操作し、パッドを直接駆動輪踏面へ押圧し、踏面に沿って前方又は後方へ回動して駆動輪を駆動すると共に、グリップ、操作桿ないしパッドの押圧を止め、バネの付勢により、パッドを踏面より開放して駆動輪の駆動を停止し、グリップないしパッドを回動自在として駆動操作行程を反復可能とし、周辺情況に応じて前後進、旋回及び操向の駆動操作行程を任意に反復することができる。 In the wheelchair drive device according to claim 1, the driving wheel pad rim is not provided but the driving pad is indirectly operated against the bias of the spring via the grip, and the pad is directly pressed to the driving wheel tread surface. Rotate forward or backward along the tread surface to drive the drive wheel, stop the grip, operating rod or pad press, and release the pad from the tread surface by the spring force to stop the drive wheel drive In addition, the driving operation process can be repeated by rotating the grip or the pad, and the driving operation processes such as forward / backward movement, turning and steering can be arbitrarily repeated according to the surrounding situation.

そして、従来の車椅子におけるハンドリムを省いており、グリップを掌で把持し、間接的に、駆動用のパッドを駆動輪踏面へ押圧して踏面に沿って回動し、駆動輪の駆動操作を行うことにより、従来のハンドリムによる駆動方式における、ハンドリムと掌との、滑り摩擦に伴う掌への支障を防止し、長距離、且つ、強力な駆動力が要求される移動情況においても、掌の皮膚を保護する専用手袋を使用することなく対応することができる。 Then, the hand rim in the conventional wheelchair is omitted, the grip is gripped with the palm, and the drive pad is indirectly pressed by pressing the drive pad against the drive wheel tread to perform the drive operation of the drive wheel. This prevents the palm of the hand rim and palm from obstructing the palm due to sliding friction in the conventional hand rim driving method, and even in a moving situation where a long distance and a strong driving force are required. It is possible to respond without using special gloves to protect.

車椅子の車体両側に駆動輪を軸支した車軸に支桿の基端側を枢支し、同自由端側に操作桿を伸縮摺動自在に嵌設して支桿頂端との間にバネを内装し、操作桿の頂部側位には、駆動輪の踏面外囲へ対向して該踏面側に嵌合可能な凹形のパッドを付設し、同操作桿側中途には、グリップを凸設し、支桿下位に延設した突片と車軸下位に突設した鉤止片との間には、踏面上位に設定したパッドの初期位置へ復元するため、戻しバネを張架してなり、車椅子に座乗して駆動操作を行うとき、グリップを把持し、バネの付勢力に抗してグリップ、操作桿及びパッドを駆動輪の踏面側へ押圧し、同パッドの凹部を踏面側へ嵌合して圧接し、駆動輪踏面に沿って回動して駆動輪を駆動すると共に、駆動操作の行程後に、グリップないしパッドの押圧を解き、バネの付勢力により、パッドを踏面より開放して初期位側へ復帰し、駆動操作を反復可能としている。 The base end of the support is pivotally supported on the axle of the wheelchair on both sides of the body of the wheelchair, and the operating rod is slidably fitted on the free end to provide a spring between the top end of the support The interior is equipped with a concave pad that can be fitted to the tread side of the operation wheel on the top side of the operation wheel, and a grip is provided in the middle of the operation wheel. In order to restore the initial position of the pad set above the tread between the protruding piece extending below the support and the locking piece protruding below the axle, a return spring is stretched, When driving while sitting on a wheelchair, grip the grip, press the grip, operating rod and pad against the tread side of the drive wheel against the biasing force of the spring, and fit the recessed part of the pad to the tread side In combination, press and rotate along the driving wheel tread to drive the driving wheel, and after the driving operation stroke, release the grip or pad press, By the urging force of Ne, open from tread pad returns to its initial position side, thereby enabling repeated driving operation.

図１は、本考案車椅子駆動装置実施例の立面図であって、車体（１）両側に駆動輪（２）を軸支した車軸（３）に支桿（４）の基端側を枢支し、同自由端側に操作桿（４ａ）を伸縮摺動自在に嵌設して支桿頂端との間にバネ（４ｂ）を内装し、操作桿（４ａ）の頂部側位には、駆動輪（２）の踏面（２ａ）外囲へ対向して該踏面側に嵌合可能な凹形のパッド（５）を付設し、同操作桿側中途には、グリップ（６）を凸設し、支桿下位に延設した突片（４ａ）と車軸下位に突設した鉤止片（７ａ）との間には、踏面上位に設定したパッドの初期位置（Ａ）へ復元するため、戻しバネ（７）を張架してなり、グリップ、操作桿及びパッドを押圧して回動操作するとき、Ａ１及びＡ２は、それぞれ、前方行程、並びに、後方行程における概要の位置を示す。 FIG. 1 is an elevational view of an embodiment of the wheelchair drive device according to the present invention, in which a base end side of a support (4) is pivoted on an axle (3) that supports drive wheels (2) on both sides of a vehicle body (1). An operating rod (4a) is slidably fitted on the free end side, and a spring (4b) is installed between the top end of the supporting rod, and on the top side of the operating rod (4a), A concave pad (5) that can be fitted to the tread side is provided facing the outer surface of the tread surface (2a) of the drive wheel (2), and a grip (6) is provided in the middle of the operating rod side. In order to restore the initial position (A) of the pad set above the tread surface between the protruding piece (4a) extending below the support and the locking piece (7a) protruding below the axle, When the return spring (7) is stretched and the grip, the operating rod, and the pad are pressed to rotate, A1 and A2 are the approximate positions in the forward stroke and the backward stroke, respectively. Show.

図２は、実施例図１の平面図であって、上記構成各部は、両側一対よりなることを示す。 FIG. 2 is a plan view of the embodiment shown in FIG. 1 and shows that each of the above-described components consists of a pair on both sides.

図３は、実施例図１のＡ−Ａにおける左側要部の断面図であって、駆動輪（２）の踏面（２ａ）と対向する凹形のパッド（５）とは、対向して隔離した位置に在ることを示し、図４は、図３の状態より、るバネ（４ｂ）の付勢に抗してグリップ（６）、操作桿（４ａ）及びパッド（５）を駆動輪の踏面側（Ｂ）へ押圧し、同パッドの凹部を踏面側へ嵌合して圧接した状態を示し、図５は、図４のＢから視る平面図である。 3 is a cross-sectional view of the main part on the left side of AA in FIG. 1 of the embodiment, and is separated from the concave pad (5) facing the tread surface (2a) of the drive wheel (2). 4 shows that the grip (6), the operating rod (4a), and the pad (5) of the driving wheel are opposed to the bias of the spring (4b) from the state of FIG. FIG. 5 is a plan view seen from B in FIG. 4, showing a state where the tread is pressed to the tread side (B) and the concave portion of the pad is fitted to the tread side and pressed.

上記パッド（５）は、駆動輪踏面（２ａ）への押圧力が比較的軽度のときも滑りなく駆動可能とするため、踏面との嵌合面の材質には、踏面材の硬度相当の耐摩耗性ゴム状の弾性材が推奨される。 Since the pad (5) can be driven without slipping even when the pressing force on the driving wheel tread (2a) is relatively light, the material of the mating surface with the tread is resistant to the hardness of the tread material. Abrasive rubber-like elastic material is recommended.

本考案装置は、福祉機器における普通型車椅子の駆動手段に適用するほか、長距離、且つ、強力な駆動力が要求される競技練習用車椅子にも適用できる。 The device of the present invention can be applied not only to driving means for ordinary wheelchairs in welfare equipment but also to wheelchairs for competition practice that require a long distance and a strong driving force.

本考案車椅子駆動装置実施例の立面図である。 It is an elevation view of an embodiment of the wheelchair drive device of the present invention. 図１実施例図の平面図である。 1 is a plan view of the embodiment example. 図１のＡ−Ａにおける左側要部の断面図である。 It is sectional drawing of the left side principal part in AA of FIG. 図１のＡ−Ａにおける左側要部の断面図であって、Ｂ矢側へ押圧力を負荷したときの変位状態を示す。 It is sectional drawing of the left side principal part in AA of FIG. 1, Comprising: The displacement state when pressing force is loaded to B arrow side is shown. 図４のＢ矢から視る平面図である。 It is a top view seen from the B arrow of FIG.

符号の説明Explanation of symbols

１車体
２駆動輪
２ａ踏面
３車軸
４支桿
４ａ操作桿
４ｂバネ
４ｃ突片
５パッド
６グリップ
７戻しバネ
７ａ鉤止片
８キャスター
Ａ初期位置（グリップないしパッドの）
Ａ１前方行程の概要位置（グリップないしパッドの）
Ａ２後方行程の概要位置（グリップないしパッドの）
Ｂ押圧方向（グリップないしパッドの）DESCRIPTION OF SYMBOLS 1 Car body 2 Drive wheel 2a Tread surface 3 Axle 4 Support 4a Operation rod 4b Spring 4c Projection piece 5 Pad 6 Grip 7 Return spring 7a Retaining piece 8 Caster A Initial position (grip or pad)
A1 Outline position of the forward stroke (grip or pad)
A2 Outline position of back stroke (grip or pad)
B Pressing direction (grip or pad)

Claims

車椅子の車体（１）両側に駆動輪（２）を軸支した車軸（３）に支桿（４）の基端側を枢支し、同自由端側に操作桿（４ａ）を伸縮摺動自在に嵌設して支桿頂端との間にバネ（４ｂ）を内装し、操作桿（４ａ）の頂部側位には、駆動輪（２）の踏面（２ａ）外囲へ対向して該踏面側に嵌合可能な凹形のパッド（５）を付設し、同操作桿側中途には、グリップ（６）を凸設し、支桿下位に延設した突片（４ａ）と車軸下位に突設した鉤止片（７ａ）との間には、踏面上位に設定したパッドの初期位置（Ａ）へ復元するため、戻しバネ（７）を張架してなり、車椅子に座乗して駆動操作を行うとき、グリップを把持し、バネ（４ｂ）の付勢力に抗してグリップないしパッドを駆動輪の踏面側へ押圧し、同パッドの凹部を踏面側へ嵌合して圧接し、駆動輪踏面に沿って回動して駆動輪を駆動すると共に、駆動操作の行程後に、グリップないしパッドの押圧を解き、バネの付勢力により、パッドを踏面より開放して初期位側へ復帰し、駆動操作を反復可能とすることを特徴とする車椅子駆動装置。 Wheelchair body (1) The support wheel (4) is pivotally supported on the axle (3) that pivotally supports the drive wheels (2) on both sides of the wheelchair. The spring (4b) is installed between the top end of the support rod and freely mounted, and the top side of the operation rod (4a) is opposed to the outer surface of the tread (2a) of the drive wheel (2). A concave pad (5) that can be fitted to the tread surface is provided, and a grip (6) is provided in the middle of the operation rod side, and a projecting piece (4a) that extends below the support rod and the axle lower portion In order to restore to the initial position (A) of the pad set on the upper surface of the tread, the return spring (7) is stretched between the locking piece (7a) protruding from When driving, the grip is gripped, the grip or pad is pressed against the tread side of the drive wheel against the urging force of the spring (4b), and the recess of the pad is fitted to the tread side and pressed. , It rotates along the driving wheel tread to drive the driving wheel.After the driving operation, the grip or the pad is released, and the spring is biased to release the pad from the tread and return to the initial position. A wheelchair drive device characterized in that the drive operation can be repeated.