JP2008154978A - Wheelchair - Google Patents

Wheelchair Download PDF

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Publication number
JP2008154978A
JP2008154978A JP2006357340A JP2006357340A JP2008154978A JP 2008154978 A JP2008154978 A JP 2008154978A JP 2006357340 A JP2006357340 A JP 2006357340A JP 2006357340 A JP2006357340 A JP 2006357340A JP 2008154978 A JP2008154978 A JP 2008154978A
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wheelchair
seat surface
pedal
backrest
fulcrum
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JP2006357340A
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Japanese (ja)
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Kunio Shoji
邦男 庄子
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Hoyu Co Ltd
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Hoyu Co Ltd
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Priority to JP2006357340A priority Critical patent/JP2008154978A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheelchair having simple structure and less manufacturing cost and lower increasing weight than usual, equipped with a standing aid. <P>SOLUTION: A belt body 3 is connected to the end of a backrest on a seat surface 1 of a wheelchair, and the other end of the belt body 3 is through a supporting part 2 mounted on a wheelchair frame adjacent to the upper end of the backrest, and a structure connected between the supporting point 5 mounted on the wheelchair frame of the lower end of the seat surface 1 and the tip end of a pedal 4 mounted on the supporting point 5 is added to the wheelchair. The backrest side of the seat surface 1 is moved upward by stepping on the pedal 4 in the principle of lever, and it can help a user of the wheelchair to stand. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車椅子に関し、特に利用者の起立を容易にする起立補助装置を具備した車椅子に関するものである。  The present invention relates to a wheelchair, and more particularly to a wheelchair equipped with a standing assistance device that makes it easy for a user to stand up.

車椅子の利用者は、当然のことながら歩行機能などに何らかの障害を有し、利用者自身の起立に多大の労力を要するばかりでなく、苦痛を伴うことがあるので、介護が必要となる場合が多い。特に我が国おいては、少子高齢化の進行に伴い、介護される側が高齢者であると、介護する側も高齢となる可能性があり、介護する側の負担が増加するという問題が深刻になる。  As a matter of course, users of wheelchairs have some obstacles in walking function, etc., and not only do they need a lot of effort to stand up themselves, but they may be painful, so care may be required. Many. Especially in Japan, with the aging of the declining birthrate and aging population, if the side being cared for is an elderly person, the caring side may also become older, and the problem of increasing the burden on the caring side will become serious .

この対策として、介護ロボットなどの開発が盛んに行われているが、実用化にはなお一定の期間を要し、実用化されても価格の問題から一般に普及するのは困難と思われる。また、前記のロボット以外にも、比較的簡便な構造で、利用者の起立を補助する機能を具備した車椅子が種々提案されている。  As a countermeasure, nursing robots and the like have been actively developed. However, it still takes a certain period to put it into practical use, and even if it is put into practical use, it seems difficult to spread to the public. In addition to the robot described above, various wheelchairs having a relatively simple structure and a function of assisting the user to stand up have been proposed.

一例を挙げると、特許文献1には、車椅子自体の傾きを変えることで、車椅子上の要介護者を立ち上がらせることが可能な、車椅子の起立補助装置が開示されている。しかしながら、ここに開示されている車椅子の起立補助装置においては、車椅子の傾きを変える駆動源として、電動モータ、空圧機構または油圧機構を用い、動力の伝達機構として、プーリ、ピニオン、ラックなどを用いていることから、構造の複雑さにより製造コスト低減が困難であることや、車椅子自体の重量増加が避けられないという問題がある。  For example, Patent Document 1 discloses a wheelchair standing assistance device that can raise a care recipient on a wheelchair by changing the inclination of the wheelchair itself. However, in the wheelchair standing assistance device disclosed herein, an electric motor, a pneumatic mechanism or a hydraulic mechanism is used as a drive source for changing the tilt of the wheelchair, and a pulley, pinion, rack, or the like is used as a power transmission mechanism. Since it is used, there are problems that it is difficult to reduce the manufacturing cost due to the complexity of the structure, and that the weight of the wheelchair itself cannot be avoided.

特許第3553888号公報  Japanese Patent No. 3553888

従って、本発明の課題は、前記車椅子の起立補助装置を簡便な構造とすることによって、製造コスト増を抑制し、併せて重量増抑制による操作性の向上を実現し得る、起立補助装置を具備した車椅子を提供することにある。  Accordingly, an object of the present invention is to provide a stand-up assist device that can suppress an increase in manufacturing cost and can also improve operability by suppressing an increase in weight by making the stand-up assist device of the wheelchair simple. Is to provide a wheelchair.

本発明者は、椅子を構成する部位の中で、座面に利用者の体重の大部分が負荷されていることに着目し、座面のみを可動とすることで、車椅子における起立補助装置の構造簡便化を検討した結果、本発明をなすに至ったものである。  The inventor pays attention to the fact that most of the weight of the user is loaded on the seating surface among the parts constituting the chair, and by making only the seating surface movable, As a result of studying the simplification of the structure, the present invention has been achieved.

即ち、本発明は、座面における背もたれ部側の端部の上下動により、前記座面の傾斜角度を調整し得る角度可変機構を具備してなる車椅子であって、前記角度可変機構は、前記座面下部の車椅子フレームに設けられた支点に取付けられたペダルと、前記座面の背もたれ部側の端部近傍に結合され、前記背もたれ部の上端近傍の車椅子フレームに設けられた支持部を経由して、前記ペダルにおける先端と前記支点との間に結合された帯状体を有することを特徴とする車椅子である。  That is, the present invention is a wheelchair comprising an angle variable mechanism capable of adjusting an inclination angle of the seat surface by vertical movement of an end portion on the backrest portion side of the seat surface, wherein the angle variable mechanism is A pedal attached to a fulcrum provided on a wheelchair frame at the lower part of the seating surface and a support part provided on a wheelchair frame near the upper end of the backrest part, coupled to the vicinity of the backrest side end of the seating surface And it is a wheelchair characterized by having a belt-like body connected between the tip of the pedal and the fulcrum.

また、本発明は、前記ペダルが、延長機構を具備してなることを特徴とする、前記の車椅子である。  The present invention is the wheelchair described above, wherein the pedal includes an extension mechanism.

本発明の車椅子は、基本的に付加される部材が、ペダル、帯状体、車椅子フレームに設けられる支点及び支持部のみであることから、構造が簡便で、かつ部材付加による重量増加が極めて少ない。従って、製造コストを低く抑えることができるとともに、介護者の負担が少ない。  In the wheelchair according to the present invention, the only members added are pedals, belts, fulcrums and support portions provided on the wheelchair frame, so that the structure is simple and the weight increase due to the addition of the members is extremely small. Therefore, the manufacturing cost can be kept low and the burden on the caregiver is small.

次に図を参照しながら、本発明の実施の形態について説明する。図1は、本発明に係る車椅子の概略を模式的に示す図であり、図1(a)は、通常の状態、図1(b)は、座面の背もたれ部側を持ち上げた状態を示す。また、図1において、1は座面、2は支持部、3は帯状体、4はペダル、5は支点を示す。  Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram schematically showing an outline of a wheelchair according to the present invention, FIG. 1 (a) shows a normal state, and FIG. 1 (b) shows a state where the backrest side of the seat surface is lifted. . Moreover, in FIG. 1, 1 is a seat surface, 2 is a support part, 3 is a strip | belt-shaped body, 4 is a pedal, 5 shows a fulcrum.

座面1は、プラスチックや木材などの軽量かつ堅牢な材質からなる基板に、クッションを取付けた構造とすることで、利用者の体重が付加された状態で、背もたれ部側を持ち上げても変形しないようにすることができる。  The seat surface 1 has a structure in which a cushion is attached to a substrate made of a light and robust material such as plastic or wood, so that it does not deform even when the backrest part is lifted with the weight of the user added. Can be.

支持部2は、円筒形状でボールベアリングを介して、回転可能な状態で車椅子のフレームに取付けられている。帯状体3は、高強度で摺動性に優れたナイロンの織布で構成され、一端が座面1の背もたれ側の端部に結合され、多端がペダル4における端部と支点5の間に結合されている。なお、帯状体3は、同様の物性を備えた材料で構成されたものでも使用できることは言うまでもない。  The support portion 2 is cylindrical and is attached to the wheelchair frame in a rotatable state via a ball bearing. The strip 3 is made of a nylon woven fabric having high strength and excellent slidability, one end is coupled to the end on the backrest side of the seat surface 1, and the other end is between the end of the pedal 4 and the fulcrum 5. Are combined. Needless to say, the belt-like body 3 can be made of a material having the same physical properties.

このような構成とすることにより、介護者がペダル4の端部を踏み込むことにより、図1(b)に示したように、座面1における帯状体3が結合された部分が図における上方に移動し、利用者の起立を補助することができる。しかも、帯状体3のペダル4への結合部位がペダル4の先端と支点5の間に設けられているので、梃子の原理により、介護者に大きな負担をかけることがない。  With this configuration, when the caregiver steps on the end of the pedal 4, as shown in FIG. 1 (b), the portion of the seat surface 1 where the band-like body 3 is coupled is upward in the figure. It can move and help the user stand up. In addition, since the connecting portion of the belt-like body 3 to the pedal 4 is provided between the tip of the pedal 4 and the fulcrum 5, the caregiver is not greatly burdened by the principle of the lever.

また、図1に示した例では、ペダル4が車椅子の後方に設けられているが、場合によっては利用者が起立した際に、前方から身体を支える必要が生じるので、ペダル4を車椅子の前方に設けてもよいし、前後両方向に設けることも可能である。  In the example shown in FIG. 1, the pedal 4 is provided on the rear side of the wheelchair. However, when the user stands up in some cases, it is necessary to support the body from the front side. It is also possible to provide in both the front and rear directions.

また、前記のように本発明の車椅子では、座面1の移動に梃子の原理を用いているので、前記結合部とペダル4の先端の距離と、支点5と帯状体3の結合部の距離との比率が大きいほど、座面1を移動させる力が大きくなる。つまり、体重の重い利用者にも対応できる。従って、ペダル4が長さの延長機構を備えていると、利便性が増加することになる。  Further, as described above, in the wheelchair according to the present invention, the principle of lever is used for the movement of the seat surface 1, so that the distance between the coupling portion and the tip of the pedal 4 and the distance between the fulcrum 5 and the coupling portion of the belt-like body 3. The greater the ratio, the greater the force that moves the seating surface 1. That is, it can cope with a heavy user. Therefore, when the pedal 4 is provided with a length extension mechanism, convenience is increased.

図2はペダル4の延長機構の例を示す図で、図2(a)はヒンジを用いた例、図2(b)はスライド機構を用いた例である。図2において6及び8は延長部、7はヒンジ、9はスライド機構を示す。  FIG. 2 is a diagram showing an example of an extension mechanism of the pedal 4, FIG. 2 (a) is an example using a hinge, and FIG. 2 (b) is an example using a slide mechanism. In FIG. 2, 6 and 8 are extensions, 7 is a hinge, and 9 is a slide mechanism.

図2(a)に示した例では、通常は延長部6をヒンジ7により折りたたんだ状態にしておき、必要に応じて延長して用いる。また図(b)に示した例では、ペダル本体が中空部を備えていて、通常は延長部8を中空部に収納した状態にしておき、必要に応じて延長部8を引出して用いる。  In the example shown in FIG. 2A, the extension portion 6 is normally folded by a hinge 7 and extended as necessary. In the example shown in FIG. 2B, the pedal body has a hollow portion, and the extension portion 8 is normally stored in the hollow portion, and the extension portion 8 is pulled out and used as necessary.

以上に説明したように、本発明によれば、利用者の起立を補助し得る車椅子を、簡便な構造で提供することができる。これによって歩行の困難な傷病者や高齢者の介護の利便性を増加し、福祉の向上に資するところは、非常に大きいと言える。  As described above, according to the present invention, a wheelchair that can assist a user to stand up can be provided with a simple structure. It can be said that this greatly increases the convenience of care for the disabled and elderly with difficulty in walking and contributes to the improvement of welfare.

なお、本発明は、前記の実施の形態に限定されるものではなく、たとえば、帯状体3を自転車の動力伝達に用いるチェーンのような構造とするように、本発明の要旨を逸脱しない範囲の設計変更があっても、本発明に含まれる。即ち、当業者であればなし得るであろう各種変形、修正が本発明に含まれることは勿論である。  The present invention is not limited to the above-described embodiment. For example, the belt-like body 3 has a structure like a chain used for power transmission of a bicycle. Even if there is a design change, it is included in the present invention. That is, it goes without saying that the present invention includes various variations and modifications that can be made by those skilled in the art.

本発明に係る車椅子の概略を模式的に示す図。図1(a)は通常の状態。図1(b)は座面の背もたれ部側を持ち上げた状態。  The figure which shows the outline of the wheelchair which concerns on this invention typically. FIG. 1A shows a normal state. FIG.1 (b) is the state which raised the backrest part side of the seat surface. 図2はペダルの延長機構の例を示す図。図2(a)はヒンジを用いた例。図2(b)はスライド機構を用いた例。  FIG. 2 is a diagram illustrating an example of a pedal extension mechanism. FIG. 2A shows an example using a hinge. FIG. 2B shows an example using a slide mechanism.

符号の説明Explanation of symbols

1 座面
2 支持部
3 帯状体
4 ペダル
5 支点
6,8 延長部
7 ヒンジ
9 スライド機構
DESCRIPTION OF SYMBOLS 1 Seat surface 2 Support part 3 Strip | belt-shaped body 4 Pedal 5 Support point 6,8 Extension part 7 Hinge 9 Slide mechanism

Claims (2)

座面における背もたれ部側の端部の上下動により、前記座面の傾斜角度を調整し得る角度可変機構を具備してなる車椅子であって、前記角度可変機構は、前記座面下部の車椅子フレームに設けられた支点に取付けられたペダルと、前記座面の背もたれ部側の端部近傍に結合され、前記背もたれ部の上端近傍の車椅子フレームに設けられた支持部を経由して、前記ペダルにおける先端と前記支点との間に結合された帯状体を有することを特徴とする車椅子。  A wheelchair comprising an angle variable mechanism capable of adjusting an inclination angle of the seat surface by vertical movement of an end portion on a backrest portion side of the seat surface, wherein the angle variable mechanism is a wheelchair frame below the seat surface. The pedal is attached to a fulcrum provided on the back of the seat, and is coupled to the vicinity of the back portion of the seat surface, and via a support provided on the wheelchair frame near the upper end of the back portion. A wheelchair having a belt-like body coupled between a tip and the fulcrum. 前記ペダルは、延長機構を具備してなることを特徴とする、請求項1に記載の車椅子。  The wheelchair according to claim 1, wherein the pedal includes an extension mechanism.
JP2006357340A 2006-12-20 2006-12-20 Wheelchair Pending JP2008154978A (en)

Priority Applications (1)

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JP2006357340A JP2008154978A (en) 2006-12-20 2006-12-20 Wheelchair

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JP2006357340A JP2008154978A (en) 2006-12-20 2006-12-20 Wheelchair

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Family Applications (1)

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JP2006357340A Pending JP2008154978A (en) 2006-12-20 2006-12-20 Wheelchair

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9693914B2 (en) 2015-01-29 2017-07-04 France Bed Co., Ltd. Wheelchair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9693914B2 (en) 2015-01-29 2017-07-04 France Bed Co., Ltd. Wheelchair

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