JPH09574A - Safety device for motor-driven wheelchair for medical care - Google Patents
Safety device for motor-driven wheelchair for medical careInfo
- Publication number
- JPH09574A JPH09574A JP7178025A JP17802595A JPH09574A JP H09574 A JPH09574 A JP H09574A JP 7178025 A JP7178025 A JP 7178025A JP 17802595 A JP17802595 A JP 17802595A JP H09574 A JPH09574 A JP H09574A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- wheelchair
- brake
- chair
- medical care
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、身体障害者や病人等を
乗せて走行する車椅子で、介護者が後部を歩行しながら
操縦操作を行う介護用電動車椅子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wheelchair for care, which is a wheelchair for carrying a physically handicapped person, a sick person, etc., in which a caregiver operates while walking at the rear.
【０００２】[0002]
【従来の技術】車椅子にバッテリとモータを搭載して電
力で走行する電動車椅子が近年普及してきた。この電動
車椅子の背凭れ後部に操縦用ハンドル杆を設けて介護者
がこのハンドル杆を持って走行させる介護用電動車椅子
も開発されている。この介護用電動車椅子は、左右一対
の駆動輪と左右一対の遊動輪からなる４輪で構成され、
左右への旋回はハンドル杆の左右を押したり引いたりす
ることでキャスター角を有する遊動輪の向きを変えて容
易に行えるようにしている。2. Description of the Related Art In recent years, electric wheelchairs, which are equipped with a battery and a motor in a wheelchair and run with electric power, have become widespread. An electric wheelchair for care has also been developed in which a caregiver is provided with a steering handle bar on the back of the back of the electric wheelchair so that a caregiver can run with the handlebar. This electric wheelchair for care is composed of four wheels consisting of a pair of left and right drive wheels and a pair of left and right idler wheels.
Turning to the left and right is made easy by pushing and pulling the left and right of the handle rod to change the direction of the idler wheel having the caster angle.
【０００３】[0003]
【発明が解決しようとする課題】前記の介護用電動車椅
子で坂道を走行中に停止すると、駆動輪は制動されるが
遊動輪はフリーであるため、遊動輪が傾斜下方へ移動し
ようとする。このため、車椅子の背凭れ後側にある操縦
用ハンドル杆を介護者が手放すと、車椅子が自重で旋回
して危険な状態となる場合がある。そこで、本発明で
は、このような坂道での不測の旋回を防ぐことを課題と
する。When the above-mentioned electric wheelchair for nursing care is stopped while traveling on a slope, the drive wheels are braked but the idle wheels are free, so that the idle wheels try to move downwards. For this reason, when the caregiver releases the steering handlebar on the back side of the back of the wheelchair, the wheelchair may turn under its own weight and become in a dangerous state. Therefore, an object of the present invention is to prevent such an unexpected turn on a slope.
【０００４】[0004]
【課題を解決するための手段】本発明では、駆動輪１と
遊動輪２からなる走行装置３を具備した車台４上に椅子
５を設け、該椅子５の後側に歩行操作用ハンドル杆６を
設けてなる介護用電動車椅子において、遊動輪２に電磁
ブレーキ７を設け、この電磁ブレーキ７を前記ハンドル
杆６を握った状態で制動解除状態にすべくした。According to the present invention, a chair 5 is provided on a chassis 4 equipped with a traveling device 3 composed of a drive wheel 1 and an idle wheel 2, and a walking operation handle rod 6 is provided behind the chair 5. In the electric wheelchair for nursing care provided with, the idle wheel 2 is provided with the electromagnetic brake 7, and the electromagnetic brake 7 is brought into the braking release state while the handle bar 6 is held.
【０００５】[0005]
【発明の作用及び効果】介護者がハンドル杆６を持つと
遊動輪２の電磁ブレーキ７が制動解除となって、ハンド
ル杆６を押したり引いたりすることで旋回することとな
り駆動輪１を駆動して走行する。駆動走行を停止すると
駆動輪１が制動するが、このときに介護者がハンドル杆
６から手を放すことがあると遊動輪２のブレーキ７が制
動状態となる。このため、坂道走行中に停止して介護者
がハンドル杆６から手を放すことがあっても、駆動輪１
と遊動輪２が制動されているため、車台４が旋回するこ
となく椅子５に乗った搭乗者に不安を与えるようなこと
が無い。When the caregiver holds the handle rod 6, the electromagnetic brake 7 of the idler wheel 2 releases the brake, and the handle rod 6 is pushed or pulled to turn, thereby driving the drive wheel 1. And drive. When the driving traveling is stopped, the driving wheel 1 is braked. If the caregiver may release the handle rod 6 at this time, the brake 7 of the idle wheel 2 is brought into a braking state. Therefore, even if the caregiver releases the steering wheel rod 6 while the vehicle is traveling on a slope, the drive wheel 1
Since the idle wheel 2 is braked, the occupant on the chair 5 does not feel uneasy without the chassis 4 turning.
【０００６】[0006]
【実施例】次に、本発明の一実施例を図面を参照しなが
ら説明する。車台４は、前部にモータ１０によって駆動
される駆動輪１を設け、後部にキャスター角を有する遊
動輪２を設け、この遊動輪２には電磁ブレーキ７を取り
付け、回転を制動できるようにしている。尚、電磁ブレ
ーキ７はキャスター回動軸に取り付け、制動すると車輪
の向きが固定されるようにする場合もある。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to the drawings. The chassis 4 is provided with a drive wheel 1 driven by a motor 10 at a front portion thereof and a idle wheel 2 having a caster angle at a rear portion thereof. An electromagnetic brake 7 is attached to the idle wheel 2 so that rotation can be braked. There is. The electromagnetic brake 7 may be attached to the caster rotating shaft so that the direction of the wheels is fixed when braking is performed.
【０００７】車台４上には、バッテリやモータやトラン
ス等を搭載しカバー１１で覆っており、前後中間で駆動
輪１寄りに椅子５を支持している。椅子５は、座面部１
２と背凭れ部１３とを一体形成し、左右側部に取り付け
たサイドアーム１４の上部にはアームレスト１５を取り
付け下部にはフットレスト１６を取り付けていて、背凭
れ部１３の上部にへッドレスト１７を取り付け、背凭れ
部１３の背後に操縦用ハンドル杆６を左右から中央に向
けて屈曲させて取り付けている。A battery, a motor, a transformer and the like are mounted on the chassis 4 and covered with a cover 11, and a chair 5 is supported near the drive wheel 1 in the front and rear. The chair 5 is the seat portion 1
2 and the backrest portion 13 are integrally formed, an armrest 15 is attached to an upper portion of the side arm 14 attached to the left and right side portions, and a footrest 16 is attached to a lower portion thereof, and a headrest 17 is attached to an upper portion of the backrest portion 13. The steering handlebar 6 is attached to the back of the backrest 13 by bending it from the left and right toward the center.
【０００８】ハンドル杆６の左右中央には、操縦ヘッド
１８を取り付けている。この操縦ヘッド１８には、キー
スイッチ１９と前後進切替スイッチ２０と変速スイッチ
２１等を設け、ハンドル杆６のグリップ部２２の下方へ
向けてアクセルレバー２３を突設している。ハンドル杆
６のグリップ部２２にはグリップセンサ２４を設け、介
護者がグリップ部２２を握っているかどうかの信号を出
力するようにしている。A steering head 18 is attached to the left and right center of the handle rod 6. The steering head 18 is provided with a key switch 19, a forward / backward changeover switch 20, a speed change switch 21 and the like, and an accelerator lever 23 is provided so as to project downward from a grip portion 22 of the handle rod 6. A grip sensor 24 is provided on the grip portion 22 of the handle rod 6 so that a signal indicating whether or not the caregiver is gripping the grip portion 22 is output.
【０００９】図２は、中央演算装置２５による走行制御
信号の流れを示すブロック図で、キースイッチ１９によ
るＯＮ、ＯＦＦ信号、前後進切替スイッチ２０による走
行方向、変速スイッチ２１による最高速度、アクセルレ
バー２３の回動角度による走行速度、グリップセンサ２
４による介護者がハンドル杆６のグリップ２２を握って
いるかどうかの信号が中央演算装置２５に入力し、この
中央演算装置２５からモータ駆動回路２６と前後進切替
回路２７及びモータ制動回路２８を介して制御信号が出
力されて回転速度つまり走行速度が制御される。またロ
ータ１０からは回転数が回転数検出回路２９を介して中
央演算装置２５へ入力する。FIG. 2 is a block diagram showing the flow of the traveling control signal by the central processing unit 25. The ON / OFF signals are sent by the key switch 19, the traveling direction is set by the forward / reverse switching switch 20, the maximum speed is set by the speed change switch 21, and the accelerator lever is set. Travel speed and grip sensor 2 depending on the rotation angle of 23
A signal indicating whether or not the caregiver grips the grip 22 of the handle rod 6 according to 4 is input to the central processing unit 25, and from the central processing unit 25, via the motor drive circuit 26, the forward / reverse switching circuit 27, and the motor braking circuit 28. A control signal is output to control the rotation speed, that is, the traveling speed. Further, the rotation speed from the rotor 10 is input to the central processing unit 25 via the rotation speed detection circuit 29.
【００１０】駆動輪１に設けたブレーキ３０と遊動輪２
に設けたブレーキ７は、非通電時に制動作用するもの
で、それぞれ電磁ブレーキ駆動回路３１，３２を介して
中央演算装置２５から制御信号が出力され制動解除制御
される。図３は、遊動輪２のブレーキ７を制御する状態
を示すフローチャート図である。Brake 30 and idler wheel 2 provided on drive wheel 1
The brake 7 provided in the above is for braking when not energized, and a control signal is output from the central processing unit 25 via the electromagnetic brake drive circuits 31, 32, respectively, and the brake release control is performed. FIG. 3 is a flowchart showing a state in which the brake 7 of the idler wheel 2 is controlled.
【００１１】まずステップＳ１でグリップセンサ２４の
出力で介護者がグリップ部２２を握っていると判定さ
れ、ステップＳ２でアクセルレバー２３が回動されてい
ると判定するとステップＳ３で走行を開始する。走行中
にステップＳ４でグリップセンサ２４がＯＦＦしたと判
定すなわち介護者がグリップ部２２から手を放したと判
定し、ステップＳ５でアクセルレバー２３がＯＦＦすな
わち戻されたことを判定するとステップＳ６で遊動輪２
のブレーキ７が制動作用する。First, in step S1, it is determined from the output of the grip sensor 24 that the caregiver is gripping the grip portion 22, and in step S2, if it is determined that the accelerator lever 23 is rotated, the vehicle starts traveling in step S3. It is determined in step S4 that the grip sensor 24 is OFF during traveling, that is, it is determined that the caregiver has released the hand from the grip portion 22, and if it is determined in step S5 that the accelerator lever 23 is OFF, that is, returned, it is idle in step S6. Ring 2
The brake 7 of 7 operates.
【００１２】ステップＳ７で再びグリップセンサ２４が
ＯＮすなわち介護者がグリップ部２２を握ると、ステッ
プＳ８で遊動輪２のブレーキ７をブレーキ解除としてス
テップＳ２の前へ戻ることになる。When the grip sensor 24 is turned on again in step S7, that is, the caregiver grips the grip portion 22, the brake 7 of the idler wheel 2 is released in step S8, and the process returns to the step before step S2.
【図１】本発明実施例の外観側面図である。FIG. 1 is an external side view of an embodiment of the present invention.
【図２】制御信号の流れを示すブロック図である。FIG. 2 is a block diagram showing the flow of control signals.
【図３】制御のフローチャート図である。FIG. 3 is a flowchart of control.
１ 駆動輪 ２ 遊動輪 ３ 走行装置 ４ 車台 ５ 椅子 ６ ハンドル杆 ７ 電磁ブレーキ 1 Drive Wheel 2 Idler Wheel 3 Traveling Device 4 Chassis 5 Chair 6 Handle Rod 7 Electromagnetic Brake
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年８月４日[Submission date] August 4, 1995
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００９】図２は、中央演算装置２５による走行制御
信号の流れを示すブロック図で、キースイッチ１９によ
るＯＮ、ＯＦＦ信号、前後進切替スイッチ２０による走
行方向、変速スイッチ２１による最高速度、アクセルレ
バー２３の回動角度による走行速度、グリップセンサ２
４による介護者がハンドル杆６のグリップ２２を握って
いるかどうかの信号が中央演算装置２５に入力し、この
中央演算装置２５からモータ駆動回路２６と前後進切替
回路２７及びモータ制動回路２８を介して制御信号が出
力されて回転速度つまり走行速度が制御される。またモ
ータ１０からは回転数が回転数検出回路２９を介して中
央演算装置２５へ入力する。FIG. 2 is a block diagram showing the flow of travel control signals by the central processing unit 25. The ON / OFF signals are sent by the key switch 19, the traveling direction is made by the forward / reverse selector switch 20, the maximum speed is made by the speed change switch 21, and the accelerator lever is set. Travel speed and grip sensor 2 depending on the rotation angle of 23
A signal indicating whether or not the caregiver grips the grip 22 of the handle rod 6 according to 4 is input to the central processing unit 25, and from the central processing unit 25, via the motor drive circuit 26, the forward / reverse switching circuit 27, and the motor braking circuit 28. A control signal is output to control the rotation speed, that is, the traveling speed. The model
The rotation speed from the motor 10 is input to the central processing unit 25 via the rotation speed detection circuit 29.
【手続補正２】[Procedure amendment 2]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 ─────────────────────────────────────────────────────
[Fig. 2] ─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成８年５月１０日[Submission date] May 10, 1996
【手続補正１】[Procedure amendment 1]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 [Fig. 2]
Claims (1)
行装置（３）を具備した車台（４）上に椅子（５）を設
け、該椅子（５）の後側に歩行操作用ハンドル杆（６）
を設けてなる介護用電動車椅子において、遊動輪（２）
に電磁ブレーキ（７）を設け、この電磁ブレーキ（７）
を前記ハンドル杆（６）を握った状態で制動解除状態に
すべくしてなる介護用電動車椅子の安全装置。1. A chair (5) is provided on a chassis (4) equipped with a traveling device (3) consisting of a drive wheel (1) and an idle wheel (2), and a walking operation is provided behind the chair (5). Handle rod (6)
In an electric wheelchair for nursing care provided with an idle wheel (2)
The electromagnetic brake (7) is installed in the
A safety device for an electric wheelchair for nursing care, in which the brake is released while holding the handle rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17802595A JP3605811B2 (en) | 1995-06-20 | 1995-06-20 | Safety device for electric wheelchair for nursing care |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17802595A JP3605811B2 (en) | 1995-06-20 | 1995-06-20 | Safety device for electric wheelchair for nursing care |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09574A true JPH09574A (en) | 1997-01-07 |
| JP3605811B2 JP3605811B2 (en) | 2004-12-22 |
Family
ID=16041274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17802595A Expired - Fee Related JP3605811B2 (en) | 1995-06-20 | 1995-06-20 | Safety device for electric wheelchair for nursing care |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3605811B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948741A (en) * | 1986-07-22 | 1990-08-14 | The United States Of America As Represented By The United States Department Of Energy | Polysilicon photoconductor for integrated circuits |
| JP2015036254A (en) * | 2013-08-11 | 2015-02-23 | 俊之介 島野 | Safety system for baby carriage or vehicle for care |
-
1995
- 1995-06-20 JP JP17802595A patent/JP3605811B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4948741A (en) * | 1986-07-22 | 1990-08-14 | The United States Of America As Represented By The United States Department Of Energy | Polysilicon photoconductor for integrated circuits |
| JP2015036254A (en) * | 2013-08-11 | 2015-02-23 | 俊之介 島野 | Safety system for baby carriage or vehicle for care |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3605811B2 (en) | 2004-12-22 |
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