JP3823175B2

JP3823175B2 - Folding wheelchair

Info

Publication number: JP3823175B2
Application number: JP2004310203A
Authority: JP
Inventors: 勝小宮山
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-27
Filing date: 2004-09-27
Publication date: 2006-09-20
Anticipated expiration: 2024-09-27
Also published as: JP2006087888A

Description

本発明は、ブレーキに特徴のある折畳式車椅子に関する。 The present invention relates to a folding wheelchair characterized by a brake.

従来の折畳式車椅子において、搭乗者がブレーキを操作する場合、右手でブレーキロック操作を行うと右側車輪のブレーキは右側車輪のみをロックし、左手でブレーキロック操作を行うと左側車輪のブレーキは左側車輪のみをロックするといものであった。 In a conventional foldable wheelchair, when the passenger operates the brake, if the brake lock operation is performed with the right hand, the brake on the right wheel locks only the right wheel, and if the brake lock operation is performed with the left hand, the brake on the left wheel is Only the left wheel was locked.

したがって、一方の腕が麻痺するなど使用できない搭乗者にとって、一方の車輪のブレーキしか利かせることができず、車椅子の安定した停止を得られないという欠点があった。 Therefore, for a passenger who cannot be used because one arm is paralyzed, for example, there is a drawback that only a brake on one wheel can be applied and a stable stop of the wheelchair cannot be obtained.

本発明は以上のような従来技術の欠点に鑑み、一方の腕しか動かすことの出来ない人でも容易に左右車輪にブレーキを利かせロックすることができる折畳式車椅子を提供することを目的としている。
特に無し SUMMARY OF THE INVENTION The present invention has been made in view of the above-described drawbacks of the prior art, and an object thereof is to provide a folding wheelchair that allows a person who can move only one arm to easily apply a brake to the left and right wheels. Yes.
None

上記目的を達成するために本発明は次のような構成となっている。
＜請求項１記載の発明＞
左右一対の車輪を有する折畳式の車椅子本体と、
この車椅子本体の一方の側部枠と、
前記車椅子本体の他方の側部枠と、
前記車輪の一方をロックするための該車輪の前側に配置された第１のブレーキと、
前記車輪の他方をロックするための該車輪の前側に配置された第２のブレーキと、
前記第１のブレーキと前記第２のブレーキが前記左右の車輪を同時にロックするようにブレーキ操作を行う搭乗者が片方の手で操作するブレーキレバーと、
前記車椅子本体の一方の側部枠の下方に軸支され、前記第１のブレーキを固定し前記第２のブレーキに向けて前記車椅子本体の中程まで延びた、前記ブレーキレバーの操作で回る第１のシャフトと、
この第１のシャフトに先端を折れ下がり可能に連結部で連結されるとともに、前記車椅子本体の他方の側部枠の下方に設けられた軸受け部に回り自在に軸支され、前記第２のブレーキを固定してなる第２のシャフトと、
この軸受部の軸支持穴から外側に向けて広がりテーパー形態に形成された広がり穴部とからなり、
前記車椅子本体を折り畳んで行くに伴い前記軸受部から前記第２のシャフトが押し出されて行って、ついには前記連結部が前記軸受部の外側に出て該連結部で該第２のシャフトが折れ下がるとともに、前記車椅子本体を折り畳み状態から広げて行くと前記広がり穴部に前記連結部が引き込まれるに伴い、前記第２のシャフトが該広がり穴部のテーパー壁によりスムーズに押し上げられ水平となって前記軸支持穴にスムーズに引き込まれるようにしてなる折畳式車椅子を構成している。
＜請求項２記載の発明＞In order to achieve the above object, the present invention has the following configuration.
<Invention of Claim 1>
A folding wheelchair body having a pair of left and right wheels;
One side frame of the wheelchair body ,
The other side frame of the wheelchair body ;
A first brake disposed on the front side of the wheel for locking one of the wheels;
A second brake disposed on the front side of the wheel for locking the other of the wheel;
A brake lever operated by a passenger who performs a brake operation so that the first brake and the second brake simultaneously lock the left and right wheels;
The first wheel is pivotally supported below one side frame of the wheelchair body, fixed to the first brake, and extended to the middle of the wheelchair body toward the second brake. 1 shaft,
The first shaft is connected to the first shaft by a connecting portion so that the tip can be folded down, and is pivotally supported by a bearing portion provided below the other side frame of the wheelchair body, so that the second brake A second shaft formed by fixing
It is composed of a spread hole portion formed in a tapered shape that spreads outward from the shaft support hole of this bearing portion,
As the wheelchair body is folded, the second shaft is pushed out from the bearing portion. Finally, the connecting portion comes out of the bearing portion, and the second shaft is folded at the connecting portion. When the wheelchair body is expanded from the folded state, the second shaft is smoothly pushed up by the taper wall of the widening hole and becomes horizontal as the connecting portion is drawn into the widening hole. The foldable wheelchair is configured to be smoothly drawn into the shaft support hole .
<Invention of Claim 2>

Claim 2

左右一対の車輪を有する折畳式の車椅子本体と、
この車椅子本体の一方の側部枠と、
前起車椅子本体の他方の側部枠と、
前記車輪の一方をロックするための該車輪の前側に配置された第１のブレーキと、
前記車輪の他方をロックするための該車輪の前側に配置された第２のブレーキと、
前記第１のブレーキと前記第２のブレーキが前記左右の車輪を同時にロックするようにブレーキ操作を行う搭乗者が片方の手で操作するブレーキレバーと
前記車椅子本体の一方の側部枠の下方に軸支され、前記第１のブレーキを固定し前記第２のブレーキに向けて前記車椅子本体の中程まで延びた、前記ブレーキレバーの操作で回る第１のシャフトと、
前記車椅子本体の他方の側部枠の下方に軸支され、前記第２のブレーキを固定して前記車椅子本体の中程まで延びて前記第１のシャフトと一体となって回り且つ該第１のシャフトと水平移動関係に連結された第２のシャフトとからなり、
前記車椅子本体を折り畳んで行くに伴い前記第１のシャフトが前記第２のシャフト側に水平移動して行き、前記第１のシャフトと前記第２のシャフトの連結長さが縮むようにしてなる折畳式車椅子を構成している。A folding wheelchair body having a pair of left and right wheels;
One side frame of the wheelchair body ,
The other side frame of the front wheelchair body ,
A first brake disposed on the front side of the wheel for locking one of the wheels;
A second brake disposed on the front side of the wheel for locking the other of the wheel;
A brake lever operated by a passenger who performs a brake operation so that the first brake and the second brake simultaneously lock the left and right wheels;
The first wheel is pivotally supported below one side frame of the wheelchair body, fixed to the first brake, and extended to the middle of the wheelchair body toward the second brake. 1 shaft,
It is pivotally supported below the other side frame of the wheelchair body, fixes the second brake, extends to the middle of the wheelchair body, and rotates integrally with the first shaft. A second shaft connected in a horizontal movement relationship with the shaft,
As the wheelchair body is folded, the first shaft moves horizontally toward the second shaft, and the connection length between the first shaft and the second shaft is reduced. It constitutes a wheelchair.

The invention's effect

以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。
ブレーキレバーによるブレーキ操作を行うと、左右のブレーキが左右の車輪を同時にロックすることができるとともに、
請求項１記載の発明では、車椅子を折り畳んだ状態においては第２のシャフトが自動的に折れ下がるので、ブレーキシャフトが横に突き出ない形態を実現し、折畳状態から広げるときには自動的に第２のシャフトを押し上げ引き込むという効果を得ることができ、
また請求項２記載の発明では、車椅子を折り畳んだ状態においては第１のシャフトは第２のシャフト側に水平移動してその連結長さを短くするので、ブレーキシャフトが横に突き出ない形態を実現するという効果を得ることができる。As is clear from the above description, the present invention has the following effects.
When the brake is operated with the brake lever, the left and right brakes can lock the left and right wheels simultaneously,
In the first aspect of the invention, the second shaft is automatically folded down when the wheelchair is folded, so that the brake shaft does not protrude sideways, and the second shaft is automatically pulled out from the folded state. The effect of pushing up and pulling in the shaft can be obtained,
In the invention according to claim 2, in the state where the wheelchair is folded, the first shaft moves horizontally to the second shaft side to shorten the connection length, so that the brake shaft does not protrude sideways. The effect of doing can be obtained.

以下、図面に示す本発明を実施するための最良の形態を説明する。但しそれらのみに本発明を限定する趣旨のものではない。 The best mode for carrying out the present invention shown in the drawings will be described below. However, it is not intended to limit the present invention only to them.

図１ないし図４に示す本発明を実施するための最良の第１の実施の形態において折畳式車椅子１は、左右一対の車輪２、３を有する折畳式の車椅子本体４と、車輪２をロックするための第１のブレーキ５と、車輪３をロックするための第２のブレーキ６と、第１のブレーキ５と第２のブレーキ６を同時にロックしたり解除したりのブレーキ操作をするためのブレーキレバー７、このブレーキレバー７を通し該７のロック部を有する案内支持穴を設けた（図示せず）レバーロック部８とからなるブレーキ操作部９と、第１のブレーキ５を固定し第２のブレーキ６に向けて車椅子本体４の中程まで延びた、ブレーキレバー７の操作で回る第１のシャフト１１と、この第１のシャフト１１に先端を折れ下がり可能に連結部１０で連結されるとともに、第２のブレーキ６を固定してなる第２のシャフト１２と、この第２のシャフト１２を第２のブレーキ６側で回り自在に軸支する軸受部１３と、この軸受部１３の軸支持穴１４から外側に向けて広がりテーパー形態に形成された広がり穴部１５と、軸受部１３に固定されて車椅子本体４の内側に延びて連結部１０を囲う長さとなっている案内筒シャフト１６とからなっている。
１７は第１のブレーキのアーム、
１８は車椅子本体４の右側部枠、
１９は軸受部、
２０は車椅子本体４の左側部枠、
２１は第２のブレーキのアーム、
２２は第２のブレーキのアームを起こし上げ動かないように係止する係止部、
である。
車椅子の折り畳み操作および折り畳み状態からの広げ操作において、第２のシャフト１２は次のように動く。
車椅子本体４を折り畳んで行くに伴い軸受部１３から第２のシャフト１２が押し出されて行って（図４中ｂ）、ついには連結部１０が軸受部１３の外側に出てこの連結部１３で第２のシャフトが自重により垂直に折れ下がる（図４中ｃ）。
車椅子本体４を折畳状態から広げ操作すると広がり穴部１５に連結部１０が引き込まれるに伴い、第２のシャフト１２が広がり穴部１５のテーパー壁によりスムーズに押し上げられ（図４中ｂ）水平（図４中ａ）となって前記軸支穴にスムーズに引き込まれて行くようになっている。In the first preferred embodiment for carrying out the present invention shown in FIGS. 1 to 4, a foldable wheelchair 1 includes a foldable wheelchair body 4 having a pair of left and right wheels 2 and 3, and a wheel 2. The first brake 5 for locking the vehicle, the second brake 6 for locking the wheel 3, and the brake operation of simultaneously locking and releasing the first brake 5 and the second brake 6 A brake operating portion 9 comprising a brake lever 7 for driving, a lever support portion 8 (not shown) provided with a guide support hole (not shown) through which the brake lever 7 is passed, and the first brake 5 are fixed. A first shaft 11 that extends to the middle of the wheelchair body 4 toward the second brake 6 and rotates by the operation of the brake lever 7, and a connecting portion 10 that allows the tip of the first shaft 11 to be folded down. As it is connected A second shaft 12 to which the second brake 6 is fixed, a bearing portion 13 that rotatably supports the second shaft 12 on the second brake 6 side, and a shaft support hole of the bearing portion 13 An expanding hole 15 formed in a tapered shape that extends outward from 14, and a guide tube shaft 16 that is fixed to the bearing 13 and extends to the inside of the wheelchair body 4 and surrounds the connecting portion 10. It has become.
17 is the arm of the first brake,
18 is a right side frame of the wheelchair body 4,
19 is a bearing part,
20 is a left side frame of the wheelchair body 4,
21 is the arm of the second brake,
22 is a locking portion that locks the second brake arm so as not to move up and move;
It is.
In the wheelchair folding operation and the unfolding operation from the folded state, the second shaft 12 moves as follows.
As the wheelchair body 4 is folded, the second shaft 12 is pushed out from the bearing portion 13 (b in FIG. 4). Finally, the connecting portion 10 comes out of the bearing portion 13 and is connected to the connecting portion 13. The second shaft is bent vertically by its own weight (c in FIG. 4).
When the wheelchair body 4 is extended from the folded state, the second shaft 12 is smoothly pushed up by the tapered wall of the hole 15 as the connecting part 10 is pulled into the hole 15 (b in FIG. 4B). (A in FIG. 4) is smoothly drawn into the shaft support hole.

（発明を実施するための異なる形態）
次に、図５ないし図７に示す本発明を実施するための異なる形態について説明する。なお、これら本発明を実施するための異なる形態の説明に当たって、本発明を実施するための最良の第１の実施の形態と同一構成部分には同一符号を付して重複する説明を省略する。(Different modes for carrying out the invention)
Next, different modes for carrying out the present invention shown in FIGS. 5 to 7 will be described. In the description of the different modes for carrying out the present invention, the same components as those in the best first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

図５ないし図７に示す本発明を実施するための最良の第２の実施の形態において前記本発明を実施するための最良の第１の実施の形態と主に異なる点は、第１のシャフト１１の先端に連結突起４０が設けられ、第２のブレーキ６に固定されて車椅子本体４の中程まで延びて第１のシャフト１１の先端および連結突起３９、４０を内側に通してなり且つ第１のシャフト１１と一体となって回り且つ第１のシャフト１１が横水平移動自在に連結してなる第２のシャフト４１を設けてなる折畳式車椅子４２を形成した点にある。
車椅子本体４を折り畳んで行くに伴い第１のシャフト１１が第２のシャフト側４１に横水平移動して行き、第１のシャフト１１と第２のシャフト４１の連結長さが縮む（短くなる）ようにしなっている。
第２のシャフト４１には通された連結突起３９、４０が横水平に移動可能にセットしてなる横長の突起通し穴４３、４４が設けられ、第２のシャフト４１の根元側には該４１の左右の移動を阻止する固定部４５が設けられ、この固定部４５は左側部枠２０に回転自在に軸支固定されていて、固定部４５の外側にはブレーキ固定部４６が突き出し設けられ、ブレーキ固定部４６にはアーム２１が固定されている。The second preferred embodiment for carrying out the present invention shown in FIGS. 5 to 7 mainly differs from the first preferred embodiment for carrying out the present invention in that the first shaft 11 is provided with a connecting projection 40, is fixed to the second brake 6, extends to the middle of the wheelchair body 4, and passes through the tip of the first shaft 11 and the connecting projections 39, 40 to the inside. The foldable wheelchair 42 is formed by providing a second shaft 41 that rotates integrally with the first shaft 11 and is connected to the first shaft 11 so as to be movable horizontally and horizontally.
As the wheelchair body 4 is folded, the first shaft 11 moves horizontally and horizontally to the second shaft side 41, and the connection length between the first shaft 11 and the second shaft 41 is reduced (shortened). It has become like that.
The second shaft 41 is provided with horizontally long projection through holes 43 and 44 in which connecting projections 39 and 40 passed therethrough are set so as to be horizontally and horizontally movable. A fixing portion 45 that prevents the left and right movements of the fixing portion 45 is provided. The fixing portion 45 is rotatably supported by the left side frame 20, and a brake fixing portion 46 projects from the outside of the fixing portion 45. The arm 21 is fixed to the brake fixing portion 46.

本発明は車椅子を製造する産業で利用される。 The present invention is used in the industry of manufacturing wheelchairs.

本発明を実施するための最良の第１の実施の形態の広げ正面図。FIG. 2 is an enlarged front view of the best first embodiment for carrying out the present invention. 本発明を実施するための最良の第１の実施の形態の折り畳み正面図。The folding front view of the best 1st Embodiment for implementing this invention. 本発明を実施するための最良の第１の実施の形態の折り畳みブレーキシャフト係止状態正面図。BRIEF DESCRIPTION OF THE DRAWINGS The folding brake shaft latching state front view of 1st Embodiment of the best for implementing this invention. 本発明を実施するための最良の第１の実施の形態のブレーキシャフトの動作図。The operation | movement figure of the brake shaft of the best 1st Embodiment for implementing this invention. 本発明を実施するための最良の第２の実施の形態の車椅子の広げ正面図。The expansion front view of the wheelchair of the best 2nd Embodiment for implementing this invention. 本発明を実施するための最良の第２の実施の形態の折り畳み正面図。The folding front view of the best 2nd Embodiment for implementing this invention. 本発明を実施するための最良の第２の実施の形態のブレーキシャフトの動作図。The operation | movement figure of the brake shaft of 2nd Embodiment of the best for implementing this invention.

Explanation of symbols

１：折畳式車椅子、
２：車輪、
３：車輪、
４：車椅子本体、
５：第１のブレーキ、
６：第２のブレーキ、
７：ブレーキレバー、
８：レバーロック部、
９：ブレーキ操作部、
１０：連結部、
１１：第１のシャフト、
１２：第２のシャフト、
１３：軸受部、
１４：軸支持穴、
１５：広がり穴部、
１６：案内筒シャフト、
１７：第１のブレーキアーム、
１８：車椅子本体の右側部枠、
１９：軸受部、
２０：車椅子本体の左側部枠、
２１：第２のブレーキアーム、
２２：係止部、
３９：連結突起、
４０：連結突起、
４１：第２のシャフト、
４２：折畳式車椅子、
４３：突起通し穴、
４４：突起通し穴、
４５：固定部、
４６：ブレーキ固定部。1: Folding wheelchair,
2: wheels,
3: Wheel,
4: Wheelchair body,
5: First brake,
6: Second brake,
7: Brake lever,
8: Lever lock part,
9: Brake operation part
10: connecting part,
11: first shaft,
12: Second shaft,
13: bearing part,
14: shaft support hole,
15: spreading hole,
16: Guide tube shaft,
17: First brake arm ,
18: Right side frame of the wheelchair body ,
19: bearing part,
20: The left side frame of the wheelchair body ,
21: Second brake arm ,
22: Locking part,
39: connecting projection,
40: connecting projection,
41: second shaft,
42: Folding wheelchair,
43: protrusion through hole,
44: protrusion through hole,
45: fixed part,
46: Brake fixing part.

Claims

A folding wheelchair body having a pair of left and right wheels;
One side frame of the wheelchair body ,
The other side frame of the wheelchair body ;
A first brake disposed on the front side of the wheel for locking one of the wheels;
A second brake disposed on the front side of the wheel for locking the other of the wheel;
A brake lever operated by a passenger who performs a brake operation so that the first brake and the second brake simultaneously lock the left and right wheels;
The first wheel is pivotally supported below one side frame of the wheelchair body, fixed to the first brake, and extended to the middle of the wheelchair body toward the second brake. 1 shaft,
The first shaft is connected to the first shaft by a connecting portion so that the tip can be folded down, and is pivotally supported by a bearing portion provided below the other side frame of the wheelchair body, so that the second brake A second shaft formed by fixing
It is composed of a spread hole portion formed in a tapered shape that spreads outward from the shaft support hole of this bearing portion,
As the wheelchair body is folded, the second shaft is pushed out from the bearing portion. Finally, the connecting portion comes out of the bearing portion, and the second shaft is folded at the connecting portion. When the wheelchair body is expanded from the folded state, the second shaft is smoothly pushed up by the taper wall of the widening hole and becomes horizontal as the connecting portion is drawn into the widening hole. A foldable wheelchair characterized by being smoothly drawn into the shaft support hole .

A folding wheelchair body having a pair of left and right wheels;
One side frame of the wheelchair body ,
The other side frame of the wheelchair body ;
A first brake disposed on the front side of the wheel for locking one of the wheels;
A second brake disposed on the front side of the wheel for locking the other of the wheel;
A brake lever operated by a passenger who performs a brake operation so that the first brake and the second brake simultaneously lock the left and right wheels;
The first wheel is pivotally supported below one side frame of the wheelchair body, fixed to the first brake, and extended to the middle of the wheelchair body toward the second brake. 1 shaft,
It is pivotally supported below the other side frame of the wheelchair body, fixes the second brake, extends to the middle of the wheelchair body, and rotates integrally with the first shaft. A second shaft connected in a horizontal movement relationship with the shaft,
As the wheelchair body is folded, the first shaft moves horizontally toward the second shaft, and the connection length between the first shaft and the second shaft is reduced. A folding wheelchair.