JPS5831543Y2 - Wheelchair backrest tilt mechanism - Google Patents
Wheelchair backrest tilt mechanismInfo
- Publication number
- JPS5831543Y2 JPS5831543Y2 JP18766680U JP18766680U JPS5831543Y2 JP S5831543 Y2 JPS5831543 Y2 JP S5831543Y2 JP 18766680 U JP18766680 U JP 18766680U JP 18766680 U JP18766680 U JP 18766680U JP S5831543 Y2 JPS5831543 Y2 JP S5831543Y2
- Authority
- JP
- Japan
- Prior art keywords
- backrest
- wheelchair
- locking piece
- spring
- guide rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000005484 gravity Effects 0.000 description 1
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Description
【考案の詳細な説明】
本考案は車椅子の背もたれ傾斜機構に関するもので、特
に該背もたれの傾斜角の調節を無段階に行ない得ると共
に、かかる調節に際しての操作レバーの操作は該背もた
れを重力方向に倒す時のみ必要とすることにより、操作
を非常に容易なものとし、しかも安全性をも向上させる
ものである。[Detailed Description of the Invention] The present invention relates to a backrest inclination mechanism for a wheelchair. In particular, the inclination angle of the backrest can be adjusted steplessly, and the operation of the operating lever for such adjustment moves the backrest in the direction of gravity. Since it is only required when folding it down, it makes the operation very easy and also improves safety.
以下実施例に基づいて詳細に説明すると次の通りである
。A detailed explanation will be given below based on an example.
符号１は車椅子であり、背もたれ２を回動自在に設けて
いる。Reference numeral 1 indicates a wheelchair, and a backrest 2 is rotatably provided.
該車椅子１に於いて該背もたれ２の前方に案内枠３を設
け、該案内杆３に案内枠４を移動自在に設けると共に、
該案内枠４と前記背もたれ２とを支持リンク５で連結す
る。In the wheelchair 1, a guide frame 3 is provided in front of the backrest 2, a guide frame 4 is movably provided on the guide rod 3, and
The guide frame 4 and the backrest 2 are connected by a support link 5.
尚、図中案内杆３は車椅子１の前後方向に構成している
が、適宜傾斜させた構成でも差し支えない。In addition, although the guide rod 3 in the figure is constructed in the front-rear direction of the wheelchair 1, it may be constructed to be tilted as appropriate.
前記案内枠４には前記案内杆３に遊嵌した係止片６を傾
斜自在に支持すると共に、該係止片６を傾斜状態に附勢
するばね７と、該ばね７の附勢に抗して該係止片６を回
動させてその傾斜を緩和させる引張りワイヤー８を連結
し、該引張りワイヤー８の操作レバー９を車椅子１の適
所に設ける。The guide frame 4 supports a locking piece 6 loosely fitted to the guide rod 3 so as to be tiltable, and also includes a spring 7 that biases the locking piece 6 into an inclined state, and a spring 7 that resists the bias of the spring 7. Then, the locking piece 6 is rotated to connect a tension wire 8 that relaxes its inclination, and an operating lever 9 of the tension wire 8 is provided at an appropriate position on the wheelchair 1.
以上の構成を車椅子１の左右両側について施すが、該操
作レバー９は左右共通であっても良い。Although the above configuration is applied to both the left and right sides of the wheelchair 1, the operating lever 9 may be common to the left and right sides.
かかる構成に於いて、背もたれ２に加わる荷重は支持リ
ンク５を介して案内枠４に伝達され、該案内枠４を図中
左方に移動させる向きに作用する。In this configuration, the load applied to the backrest 2 is transmitted to the guide frame 4 via the support link 5, and acts in a direction to move the guide frame 4 to the left in the figure.
かかる際、操作レバー９を操作していない場合には、係
止片６は、ばわ７の附勢により傾斜状態を維持させてそ
のエッヂが前記案内杆３に当接しており、そして前記案
内枠４が前記背もたれ２の荷重によって移動する向きは
、かかる係止片６の傾斜が維持され、該エッチが更に強
く前記案内杆３に当接する向き、即ちいわゆる喰い込み
方向であるので、案内枠４はいわゆる傾斜ロックの原理
により移動不能に支持され、以って前記背もたれ２を荷
重に抗して支持する。At this time, if the operating lever 9 is not operated, the locking piece 6 maintains its inclined state by the urging of the rib 7, and its edge is in contact with the guide rod 3, and The direction in which the frame 4 moves due to the load of the backrest 2 is the direction in which the inclination of the locking piece 6 is maintained and the etch contacts the guide rod 3 more strongly, that is, the so-called biting direction. 4 is immovably supported by the so-called tilt lock principle, thereby supporting the backrest 2 against the load.
該背もたれ２を荷重に抗する方向に回動させる場合、即
ち上昇させる場合には、案内枠４は図中右方に移動させ
られるが、かかる方向は前記係止片６の傾斜が緩和され
る方向、即ち緩み方向であるので、該案内枠４は何らの
支障なく移動可能であり、即ち前記背もたれ２は荷重に
抗する方向には操作レバー９を全く操作することなく回
動させることかで゛きる。When the backrest 2 is rotated in a direction that resists the load, that is, when it is raised, the guide frame 4 is moved to the right in the figure, but the inclination of the locking piece 6 is relaxed in this direction. direction, that is, the loosening direction, the guide frame 4 can be moved without any hindrance, that is, the backrest 2 can be rotated in the direction that resists the load without operating the operating lever 9 at all. I can do it.
次に操作レバー９の操作により前記引張りワイヤー８を
引っ張ると、係止片６がばね７の附勢に抗して回動して
傾斜が緩和し、そのエッヂが前記案内杆３に当接しなく
なるので前記傾斜ロックが働か、なくなり：１．以って
背もたれ？を、荷重方向に、回動させ、下降きせること
かできる。Next, when the tension wire 8 is pulled by operating the operating lever 9, the locking piece 6 rotates against the bias of the spring 7, the inclination is relaxed, and its edge no longer contacts the guide rod 3. Therefore, the tilt lock works or disappears: 1. Is that the backrest? can be rotated and lowered in the direction of the load.
この際係止片６はばね７によって傾斜する向きに附勢さ
れているので、操作レバー・−９から手を離すと、その
瞬間係止片６が再び傾斜して前記した通り案内枠４を移
動不能とするので、操作中に誤まって操作レバー９から
手を離してしまった場合にも、背もたれ２が荷重方向に
落下してしまうことを完全に防止することができる。At this time, the locking piece 6 is biased in the direction of inclination by the spring 7, so when you release your hand from the operating lever -9, the locking piece 6 instantly tilts again and moves the guide frame 4 as described above. Since it is made immovable, it is possible to completely prevent the backrest 2 from falling in the direction of the load even if the user accidentally releases the operating lever 9 during operation.
尚、以上の様に背もたれ２の傾斜角度を調節すると使用
者の、重、心も車椅子１の前後方向に移動するので＼図
に示すように適宜の機構により後輪１０を車椅子１の前
後方向に調節自在とすることにより、安定性を向」ニさ
せることができる。In addition, when the inclination angle of the backrest 2 is adjusted as described above, the user's weight and heart also move in the front-back direction of the wheelchair 1. Therefore, as shown in the figure, the rear wheels 10 are moved in the front-back direction of the wheelchair 1 using an appropriate mechanism. By making it freely adjustable, stability can be improved.
本考案は以上の通り、傾斜ロックの原理を合理的に利用
して背もたれを適宜の傾斜角度で維持し得るようにした
ので、かかる背もたれの傾斜角度を無段階に調節するこ
とができるという特徴かあ、る。As described above, the present invention makes it possible to maintain the backrest at an appropriate inclination angle by rationally utilizing the principle of inclination lock, so that the inclination angle of the backrest can be adjusted steplessly. be.
しかもかかる傾斜角度の調節に際して、操作レバーは背
もたれを下降させる際にのみ操作すれば良いので操作が
非常に簡単であり、しがも操作レバーを操作しない場合
には自動的に下降不能となるので、安全性も高いという
特徴がある。Furthermore, when adjusting the inclination angle, the operation is very easy as the operating lever only needs to be operated when lowering the backrest, and if the operating lever is not operated, it will automatically become unable to lower. , which is characterized by high safety.
図は本考案の一実施例を示すもので、第１図は車椅子の
要部説明的斜視図、第２図ａ、ｌ）は動作を説明する側
面図、第３図ａ、１）は第２図ａ、ｌ）の要部拡大断面
：図、第４図は第２．図ａのＸ−Ｘ線断面図である。
符号 １・・・・・・車椅子、２・・・・・・背もたれ
、３・・・・・・案内杆、４・・・・・・案内枠、５・
・・・・・支持リンク、６・・・・・・係止片、７・・
・・・・ばね、８・・・・・・引張りワイヤー、９・・
・・・・操作レバー、１０・・・・・・後輪。The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view to explain the main parts of the wheelchair, Fig. 2 a, l) is a side view to explain the operation, and Fig. 3 a, 1) is a perspective view to explain the main parts of the wheelchair. Enlarged cross-section of the main parts of Figures 2a and 2). FIG. Code: 1... Wheelchair, 2... Backrest, 3... Guide rod, 4... Guide frame, 5...
... Support link, 6 ... Locking piece, 7 ...
...Spring, 8...Tension wire, 9...
...Operation lever, 10...Rear wheel.
Claims (1)
方に案内杆を設け、該案内杆に案内枠を移動自在に設け
ると共に、該案内枠と前記背もたれとを支持リンクで連
結し、該案内枠には前記案内杆に遊嵌した係止片を傾斜
自在に支持すると共に、該係止片を傾斜状態に附勢する
ばわと、該ばねの附勢に抗して該係止片を回動させてそ
の傾斜を緩和させる引張りワイヤーを設け、該引張りワ
イヤーの操作レバーを車椅子の適所に設けたことを特徴
とする車椅子の背もたれ傾斜機構。A wheelchair having a rotatable backrest is provided with a guide rod in front of the backrest, a guide frame is movably provided on the guide rod, the guide frame and the backrest are connected with a support link, and the guide The frame supports a locking piece that is loosely fitted to the guide rod so as to be tiltable, and also has a spring that biases the locking piece into an inclined state, and a spring that resists the biasing force of the spring to support the locking piece. A backrest tilting mechanism for a wheelchair, characterized in that a tension wire is provided which is rotated to reduce the inclination of the backrest, and an operating lever for the tension wire is provided at an appropriate position on the wheelchair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18766680U JPS5831543Y2 (en) | 1980-12-29 | 1980-12-29 | Wheelchair backrest tilt mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18766680U JPS5831543Y2 (en) | 1980-12-29 | 1980-12-29 | Wheelchair backrest tilt mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57113126U JPS57113126U (en) | 1982-07-13 |
| JPS5831543Y2 true JPS5831543Y2 (en) | 1983-07-13 |
Family
ID=29990664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18766680U Expired JPS5831543Y2 (en) | 1980-12-29 | 1980-12-29 | Wheelchair backrest tilt mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5831543Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62197054A (en) * | 1986-02-24 | 1987-08-31 | 井浦 忠 | Wheelchair for disabled man |
| JP4606446B2 (en) * | 2003-09-08 | 2011-01-05 | 株式会社カワムラサイクル | Wheelchair body frame |
-
1980
- 1980-12-29 JP JP18766680U patent/JPS5831543Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57113126U (en) | 1982-07-13 |
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