JPH06106905A - Electric lock mechanism for casters in bed etc. and its operation control method - Google Patents
Electric lock mechanism for casters in bed etc. and its operation control methodInfo
- Publication number
- JPH06106905A JPH06106905A JP27206391A JP27206391A JPH06106905A JP H06106905 A JPH06106905 A JP H06106905A JP 27206391 A JP27206391 A JP 27206391A JP 27206391 A JP27206391 A JP 27206391A JP H06106905 A JPH06106905 A JP H06106905A
- Authority
- JP
- Japan
- Prior art keywords
- lock mechanism
- caster
- hollow pipe
- drive shaft
- motor
- 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
- 230000007246 mechanism Effects 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims description 5
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
Landscapes
- Invalid Beds And Related Equipment (AREA)
Abstract
(57)【要約】
【目的】 電動によってキャスタのロック、ロック解除
を行い、停電時においても手動操作ができるようにす
る。
【構成】 キャスタ２内のロック機構１１に連結した電
動操作機構４において、先端部に突起部１０が突設され
た駆動軸７を、従動中空パイプ６の内壁面に螺旋状の溝
部９に沿って進退自在に螺入させ、モータ８を作動し
てロック機構１１のロック又はロック解除、ロック又
はロック解除を検出、ロック又はロック解除の際の回
転方向とは逆に一定時間モータ８を回転させ、駆動軸７
の突起部１０を従動中空パイプ６の略中間部における溝
部９に位置させる。
【効果】 電動によってロック、ロック解除ができるか
ら、操作性が格段に向上し、停電時においても手動操作
が可能なので、緊急を要する場合も、充分に対応できる
という大きな利点がある。
(57) [Summary] [Purpose] The casters are electrically locked and unlocked so that they can be manually operated even during a power failure. In an electric operation mechanism 4 connected to a lock mechanism 11 in a caster 2, a drive shaft 7 having a protrusion 10 projecting from a tip end is attached to an inner wall surface of a driven hollow pipe 6 along a spiral groove 9. The motor 8 is operated to detect the lock or unlock of the lock mechanism 11, the lock or unlock of the lock mechanism 11, and the motor 8 is rotated for a certain period of time opposite to the rotation direction at the time of locking or unlocking. , Drive shaft 7
The protrusion 10 is positioned in the groove 9 in the substantially intermediate portion of the driven hollow pipe 6. [Effect] Since the locking and unlocking can be performed electrically, the operability is remarkably improved, and the manual operation is possible even in the case of a power failure, so that there is a great advantage that it can sufficiently cope with an emergency.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、操作性の向上を図った
ベッド等におけるキャスタの電動ロック機構およびその
動作制御方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric lock mechanism for casters in a bed or the like, which has improved operability, and a method for controlling the operation thereof.
【０００２】[0002]
【従来の技術】例えば、ベッド等の脚部に取り付けられ
る移動用のキャスタは、ロック機構を具備するものが多
い。すなわち、このロック機構としては、例えば、車輪
に当接して車輪をロックさせる制動片と、この制動片を
車輪に押圧する作動棒と、この作動棒を押圧作動させる
ためのカム部材とを有し、このカム部材の回動軸に踏み
込み式操作手段を取り付けるようにした構成のものがあ
る。2. Description of the Related Art For example, many casters for movement, which are attached to the legs of a bed or the like, have a lock mechanism. That is, the lock mechanism includes, for example, a braking piece that abuts on the wheel to lock the wheel, an operating rod that presses the braking piece against the wheel, and a cam member that presses the operating rod. There is a structure in which a stepping operation means is attached to the rotating shaft of the cam member.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、前述の
ような踏み込み式操作手段によると、作動棒を作動させ
て車輪をロックおよびロックを解除する際、それぞれの
キャスタに設けられた踏み込み式操作手段の踏み込み操
作、逆に持ち上げる操作を行ったり、車輪のロック、ロ
ック解除操作のための踏み込みペダルをそれぞれ設けて
行ったりするわけであるが、車輪をロックさせるときに
踏み込み式ペダルを強く踏みつけがちのため、逆に持ち
上げる操作には大きな力が必要となって負担となり、ま
た、操作ペダルが増えると、操作のしやすい位置に設定
するのに、十分に考慮せねばならない。本発明は前記し
た課題に鑑みてなされたものであって、電動によって車
輪のロック、ロック解除ができるようにし、しかも、停
電時においても、手動による操作が可能なベッド等にお
けるキャスタの電動ロック機構を提供することを目的と
する。However, according to the above-mentioned stepping operation means, when the actuating rod is operated to lock and unlock the wheels, the operation of the stepping operation means provided on each caster is prevented. It is necessary to perform stepping operation, lifting operation in reverse, and to provide stepping pedals for locking and unlocking the wheels respectively. On the contrary, the lifting operation requires a large force and becomes a burden, and if the number of operation pedals is increased, it must be taken into consideration enough to set the operation pedal to a position where it is easy to operate. The present invention has been made in view of the above-mentioned problems, and enables an electric wheel to be locked and unlocked by electric power, and further, an electric lock mechanism for a caster in a bed or the like that can be manually operated even during a power failure. The purpose is to provide.
【０００４】[0004]
【課題を解決するための手段】前記した課題を解決する
ために、本発明は、車輪に接触する制動片と、この制動
片を車輪に押圧するための作動棒と、作動棒をばね力に
抗して押圧するためのカム部材とから構成されるロック
機構を備えたベッド等のキャスタにおいて、このキャス
タのカム部材の回動軸に作動軸を連結し、この作動軸の
先端部に内壁面を螺旋状に溝部を形成した従動中空パイ
プを取り付け、この従動中空パイプに突起部を設けた駆
動軸を内壁面の溝部に沿って螺入させ、前記駆動軸の先
端部にモータの出力軸を接続する構成としたことを特徴
とする。また、前記装置において、モータを作動してロ
ック機構のロック又はロック解除を検出し、しかる後、
そのロック又はロック解除の際の回転方向とは逆にモー
タを回転させ、駆動軸の突起部を従動中空パイプの略中
間部における溝部に位置させるようにすることを特徴と
する。In order to solve the above-mentioned problems, the present invention relates to a braking piece that comes into contact with a wheel, an operating rod for pressing the braking piece against the wheel, and a spring force for the operating rod. In a caster such as a bed provided with a lock mechanism composed of a cam member for pressing against, an operating shaft is connected to a rotating shaft of the cam member of the caster, and an inner wall surface is provided at a tip end portion of the operating shaft. Is attached to a driven hollow pipe in which a groove is formed in a spiral shape, and a drive shaft provided with a protrusion is screwed into the driven hollow pipe along the groove of the inner wall surface, and the output shaft of the motor is attached to the tip of the drive shaft. It is characterized in that it is configured to be connected. In the above device, the motor is operated to detect locking or unlocking of the lock mechanism, and thereafter,
It is characterized in that the motor is rotated in the opposite direction to the rotation direction at the time of locking or unlocking so that the projection of the drive shaft is located in the groove in the substantially intermediate portion of the driven hollow pipe.
【０００５】[0005]
【作用】キャスタのロック操作をすべく、モータを駆動
すると駆動軸が回転し、従動中空パイプに、駆動軸の突
起部が内壁面の溝部に沿って螺入していき、突起部は作
動軸の取付側の端部に至り、駆動軸と従動中空パイプと
は、動力的に接続された状態となる。そして、作動軸、
キャスタのカム部材の回動軸が回転し、ロック機構は作
動して車輪をロックする。その際、ロック機構がロック
状態になると、適宜な検出手段により検出され、これに
よりモータが逆転し、駆動軸の突起部が内壁面の溝部に
沿って退動し、従動中空パイプの略中間部に至る。かか
る状態においては、駆動軸と従動中空パイプとは、切り
離された状態であるので、停電時において、モータから
の回転負荷等の影響を受けることなく、動力的にフリー
な状態であるので、手動で容易に操作することが可能と
なる。また、ロック解除をするには、モータをロック操
作の際の回転向きとは逆に回転していき、駆動軸の突起
部を従動中空パイプの略中間部から、内壁面の溝部に沿
って退動させ、作動軸の取付側とは反対側の端部に至ら
せて駆動軸と従動中空パイプとを動力的に接続させる。When the motor is driven to lock the casters, the drive shaft rotates, and the protrusion of the drive shaft is screwed into the driven hollow pipe along the groove on the inner wall surface. The drive shaft and the driven hollow pipe are in a state of being mechanically connected to each other, reaching the end on the mounting side. And the operating axis,
The rotation shaft of the cam member of the caster rotates, and the lock mechanism operates to lock the wheels. At that time, when the lock mechanism is in the locked state, it is detected by an appropriate detection means, whereby the motor is rotated in the reverse direction, and the projection of the drive shaft recedes along the groove of the inner wall surface, and the substantially intermediate portion of the driven hollow pipe. Leading to. In such a state, since the drive shaft and the driven hollow pipe are separated from each other, they are in a power-free state without being affected by the rotational load from the motor during a power failure, and thus are manually operated. It becomes possible to operate it easily. To unlock the motor, rotate the motor in the opposite direction to the direction of the lock operation, and move the protrusion of the drive shaft from the approximate middle of the driven hollow pipe along the groove on the inner wall surface. The drive shaft and the driven hollow pipe are dynamically connected to each other by moving the drive shaft to the end opposite to the mounting side of the operating shaft.
【０００６】[0006]
【実施例】次に、本発明にかかるベッド等におけるキャ
スタの電動ロック機構について、一実施例を挙げ、添付
の図面を参照しながら以下説明する。図１において、参
照符号１はベッドのベースフレームを示し、このベース
フレーム１の四角には、キャスタ２が取り付けられてい
る。このキャスタ２には電動ロック機構３が備えられて
おり、この電動ロック機構３はキャスタ２内に内蔵され
る既知の構造の後述するロック機構とこのロック機構を
作動するための電動駆動機構４から構成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electric lock mechanism for casters in a bed or the like according to the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 indicates a base frame of the bed, and casters 2 are attached to the squares of the base frame 1. The caster 2 is provided with an electric lock mechanism 3. The electric lock mechanism 3 includes a lock mechanism of a known structure, which will be described later, built in the caster 2 and an electric drive mechanism 4 for operating the lock mechanism. Composed.
【０００７】前記電動駆動機構４は、図２に示すよう
に、キャスタ２内のロック機構に連結した断面角形(六
角形)の作動軸５と、この作動軸５の先端部に接続され
た従動中空パイプ６と、該従動中空パイプ６に連結され
る駆動軸７と、前記駆動軸７の先端部に接続されるモー
タ８とから実質的に構成されるものである。As shown in FIG. 2, the electric drive mechanism 4 includes an actuating shaft 5 having a rectangular cross section (hexagonal shape) connected to a lock mechanism in the caster 2, and a driven shaft connected to the tip of the actuating shaft 5. The hollow pipe 6, a drive shaft 7 connected to the driven hollow pipe 6, and a motor 8 connected to the tip of the drive shaft 7 are substantially configured.
【０００８】前記従動中空パイプ６の内壁面には、図３
に示すように、螺旋状の溝部９が形成され、前記駆動軸
７には先端部に突起部１０が突設され、前記従動中空パ
イプ６の螺旋状の溝部９に前記突起部１０を介して駆動
軸７が螺入される構造である。そして、かかる駆動軸７
は、モータ８に減速機構(図示せず)、出力軸(図示せず)
を介して接続される。なお、前記モータ８の減速機構に
所定の回転位置にて作動するように例えばリミットスイ
ッチを設ければ、キャスタ２内のロック機構のロック、
ロック解除を検出することができる。また、以上のよう
な電動ロック機構３には、キャスタ２内のロック機構を
互いに連動可能とすべく連動機構(図示せず)が設けられ
ている。The inner wall surface of the driven hollow pipe 6 is shown in FIG.
As shown in FIG. 3, a spiral groove 9 is formed, and a protrusion 10 is provided at the tip of the drive shaft 7, and the spiral groove 9 of the driven hollow pipe 6 is inserted through the protrusion 10. The drive shaft 7 is screwed in. And such drive shaft 7
Is a reduction mechanism (not shown), output shaft (not shown)
Connected via. If the speed reduction mechanism of the motor 8 is provided with, for example, a limit switch so as to operate at a predetermined rotation position, the lock mechanism in the caster 2 is locked,
Unlocking can be detected. Further, the electric lock mechanism 3 as described above is provided with an interlocking mechanism (not shown) so that the lock mechanisms in the casters 2 can interlock with each other.
【０００９】ここで、かかるキャスタ２に設けられたロ
ック機構１１について説明すると、ロック機構１１は図
４に示すように、キャスタ２を構成する車輪１２に接触
する制動片１３と、この制動片１３を車輪１２に押圧す
るための作動棒１４と、作動棒１４をばね力に抗して押
圧するためのカム部材１５とを具備するものである。そ
して、前述したように、前記カム部材１５の回動軸１６
に電動駆動機構４の作動軸５が接続される一方、連動機
構が接続される。The lock mechanism 11 provided on the caster 2 will now be described. As shown in FIG. 4, the lock mechanism 11 includes a braking piece 13 that comes into contact with a wheel 12 forming the caster 2, and the braking piece 13. It is provided with an operating rod 14 for pressing the wheel 12 against the wheel 12, and a cam member 15 for pressing the operating rod 14 against the spring force. Then, as described above, the rotation shaft 16 of the cam member 15
While the operating shaft 5 of the electric drive mechanism 4 is connected to, the interlocking mechanism is connected.
【００１０】以上説明した電動ロック機構３において
は、以下の動作手順を実行するための制御手段(図示せ
ず)が設けられ、その動作手順は、モータ８を作動し
てロック機構１１のロック又はロック解除、リミット
スイッチによりロック機構１１のロック又はロック解除
を検出、ロック又はロック解除の際の回転方向とは逆
に一定時間モータ８を回転させ、駆動軸７の突起部１０
を従動中空パイプ６の略中間部における溝部９に位置さ
せる、となっている。The electric lock mechanism 3 described above is provided with control means (not shown) for executing the following operation procedure. The operation procedure operates the motor 8 to lock or lock the lock mechanism 11. The lock release or limit switch detects lock or unlock of the lock mechanism 11, and the motor 8 is rotated for a certain period of time in the opposite direction to the rotation direction at the time of lock or lock release.
Is positioned in the groove portion 9 in the substantially middle portion of the driven hollow pipe 6.
【００１１】本発明にかかる電動ロック機構３は以上の
ように構成されるものであり、次に、この作用を説明す
る。キャスタ２のロック操作をすべく、モータ８を駆動
すると出力軸(図示せず)および減速機構(図示せず)を介
して駆動軸７が回転し、従動中空パイプ６に、駆動軸７
の突起部１０が内壁面の溝部９に沿って螺入していき、
突起部１０は作動軸５の取付側の端部に至り、駆動軸７
と従動中空パイプ６とは、動力的に接続された状態とな
る(図５ａ参照)。そして、作動軸５によりキャスタ２の
カム部材１５の回動軸１６が回転し、カム部材１５によ
り作動棒１４がばね力に抗して押圧され、制動片１３が
車輪１２に押圧接触して、車輪１２がロックされる。そ
の際、モータ８の減速機構および出力軸(図示せず)が所
定の回転を行うので、ロック状態となったとしてリミッ
トスイッチ(図示せず)により検出され、これによりモー
タ８が逆転し、駆動軸７の突起部１０が内壁面の溝部９
に沿って退動し、従動中空パイプ６の略中間部に至る
(図５ｂ参照)。かかる状態においては、駆動軸７と従動
中空パイプ６とは、切り離された状態となる。従って、
駆動軸７の突起部１０が従動中空パイプ６の端部に至る
までの間は、動力的にフリーな状態であるので、例えば
停電時において、手動により操作を行っても、モータ８
からの回転負荷の影響は受けず、容易に操作を行うこと
ができる。The electric lock mechanism 3 according to the present invention is constructed as described above, and its operation will be described below. When the motor 8 is driven to lock the caster 2, the drive shaft 7 rotates via the output shaft (not shown) and the speed reduction mechanism (not shown), and the driven hollow pipe 6 is connected to the drive shaft 7.
The protrusion 10 of the is screwed in along the groove 9 of the inner wall surface,
The protrusion 10 reaches the end of the actuating shaft 5 on the mounting side, and the driving shaft 7
The driven hollow pipe 6 and the driven hollow pipe 6 are mechanically connected (see FIG. 5a). Then, the rotating shaft 16 of the cam member 15 of the caster 2 is rotated by the operating shaft 5, the operating rod 14 is pressed against the spring force by the cam member 15, and the braking piece 13 presses and contacts the wheel 12. The wheels 12 are locked. At that time, the deceleration mechanism and the output shaft (not shown) of the motor 8 rotate in a predetermined manner, so that it is detected by the limit switch (not shown) that the motor 8 is in the locked state. The protrusion 10 of the shaft 7 is the groove 9 on the inner wall surface.
Along with the hollow hollow pipe 6 to the middle
(See Figure 5b). In this state, the drive shaft 7 and the driven hollow pipe 6 are separated from each other. Therefore,
Until the protrusion 10 of the drive shaft 7 reaches the end of the driven hollow pipe 6, it is in a dynamically free state. Therefore, for example, even when a manual operation is performed during a power failure, the motor 8
The operation can be easily performed without being affected by the rotational load from the.
【００１２】また、ロック解除をするには、モータ８を
ロック操作の際の回転向きとは逆に回転していき、駆動
軸７の突起部１０を従動中空パイプ６の略中間部から、
内壁面の溝部９に沿って退動させ、作動軸５の取付側と
は反対側の端部に至らせて駆動軸７と従動中空パイプ６
とを動力的に接続させる(図５ｃ参照)。To release the lock, the motor 8 is rotated in the direction opposite to the rotation direction at the time of the lock operation, and the projection 10 of the drive shaft 7 is moved from the substantially intermediate portion of the driven hollow pipe 6 to
The drive shaft 7 and the driven hollow pipe 6 are made to retreat along the groove 9 on the inner wall surface and reach the end portion on the side opposite to the mounting side of the operating shaft 5.
And are dynamically connected (see FIG. 5c).
【００１３】このように、キャスタ２のロック機構１１
を電動操作機構７によって、迅速にロックしたり、ロッ
ク解除したりすることができ、労力は軽減され、しか
も、ロック機構１１のロック又はロック解除後は、電動
操作機構７とロック機構１１とを動力的に切り離すよう
にしたことにより、停電時にも、キャスタ２のロック機
構１１を手動によって容易に操作することができるの
で、緊急時にも問題はない。As described above, the lock mechanism 11 of the caster 2 is used.
Can be quickly locked and unlocked by the electric operation mechanism 7, and the labor is reduced. Moreover, after the lock mechanism 11 is locked or unlocked, the electric operation mechanism 7 and the lock mechanism 11 are separated from each other. Since the lock mechanism 11 of the caster 2 can be easily manually operated even in the case of a power failure, the power is disconnected, so that there is no problem in an emergency.
【００１４】[0014]
【発明の効果】以上の通り、本発明によれば、電動によ
ってキャスタのロック、ロック解除ができるから、操作
性が格段に向上し、停電時においても手動操作が可能な
ので、緊急を要する場合も、充分に対応できるという大
きな利点がある。As described above, according to the present invention, the casters can be locked and unlocked electrically, so that the operability is significantly improved and the manual operation is possible even during a power failure. However, there is a great advantage that it can be fully supported.
【００１５】[0015]
【図１】本発明にかかるキャスタの電動ロック機構を備
えたベッド等のベースフレームの一実施例を示す斜視説
明図である。FIG. 1 is a perspective explanatory view showing an embodiment of a base frame such as a bed provided with an electric lock mechanism for casters according to the present invention.
【図２】図１に示すキャスタの電動ロック機構の一例を
示す概略斜視説明図である。2 is a schematic perspective explanatory view showing an example of an electric lock mechanism of the caster shown in FIG. 1. FIG.
【図３】図１に示すキャスタの電動ロック機構の要部断
面説明図である。FIG. 3 is a cross-sectional explanatory view of a main part of the electric lock mechanism of the caster shown in FIG.
【図４】図１に示すキャスタに内蔵されるロック機構の
一実施例を示す断面説明図である。4 is a cross-sectional explanatory view showing an example of a lock mechanism built in the caster shown in FIG. 1. FIG.
【図５ａ】本発明にかかるキャスタの電動ロック機構の
動作説明図である。FIG. 5a is an operation explanatory view of the electric lock mechanism of the caster according to the present invention.
【図５ｂ】本発明にかかるキャスタの電動ロック機構の
動作説明図である。FIG. 5b is an operation explanatory view of the electric lock mechanism of the caster according to the present invention.
【図５ｃ】本発明にかかるキャスタの電動ロック機構の
動作説明図である。FIG. 5c is an operation explanatory view of the electric lock mechanism of the caster according to the present invention.
１ ベースフレーム ２ キャスタ ３ 電動ロック機構 ４ 電動駆動機構 ５ 作動軸 ６ 従動中空パイプ ７ 駆動軸 ８ モータ ９ 溝部 １０ 突起部 １１ ロック機構 １２ 車輪 １３ 制動片 １４ 作動棒 １５ カム部材 １６ 回動軸 1 Base Frame 2 Castor 3 Electric Lock Mechanism 4 Electric Drive Mechanism 5 Actuating Shaft 6 Driven Hollow Pipe 7 Drive Shaft 8 Motor 9 Groove 10 Protrusion 11 Lock Mechanism 12 Wheel 13 Braking Piece 14 Actuating Rod 15 Cam Member 16 Rotating Shaft
Claims (2)
を車輪に押圧するための作動棒と、作動棒をばね力に抗
して押圧するためのカム部材とから構成されるロック機
構を備えたベッド等のキャスタにおいて、このキャスタ
のカム部材の回動軸に作動軸を連結し、この作動軸の先
端部に内壁面を螺旋状に溝部を形成した従動中空パイプ
を取り付け、この従動中空パイプに突起部を設けた駆動
軸を内壁面の溝部に沿って螺入させ、前記駆動軸の先端
部にモータの出力軸を接続する構成としたことを特徴と
するベッド等におけるキャスタの電動ロック機構。1. A lock mechanism comprising a braking piece that comes into contact with a wheel, an operating rod for pressing the braking piece against the wheel, and a cam member for pressing the operating rod against a spring force. In a caster such as a bed equipped with a caster, the actuating shaft is connected to the rotating shaft of the cam member of the caster, and a driven hollow pipe having an inner wall surface formed with a spiral groove is attached to the tip end of the actuating shaft. An electric lock for casters in a bed or the like, characterized in that a drive shaft provided with a projection on a pipe is screwed along a groove on an inner wall surface, and an output shaft of a motor is connected to a tip portion of the drive shaft. mechanism.
ク機構のロック又はロック解除を検出し、しかる後、そ
のロック又はロック解除の際の回転方向とは逆にモータ
を回転させ、駆動軸の突起部を従動中空パイプの略中間
部における溝部に位置させるようにすることを特徴とす
るベッド等におけるキャスタの電動ロック機構の動作制
御方法。2. The motor according to claim 1 is operated to detect locking or unlocking of a lock mechanism, and thereafter, the motor is rotated in a direction opposite to the rotation direction at the time of locking or unlocking the drive shaft. The method for controlling the operation of the electric lock mechanism of a caster in a bed or the like, characterized in that the protrusion of the driven hollow pipe is positioned in the groove in the substantially middle portion of the driven hollow pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3272063A JPH0822644B2 (en) | 1991-09-24 | 1991-09-24 | Electric lock mechanism for casters in bed etc. and its operation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3272063A JPH0822644B2 (en) | 1991-09-24 | 1991-09-24 | Electric lock mechanism for casters in bed etc. and its operation control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06106905A true JPH06106905A (en) | 1994-04-19 |
| JPH0822644B2 JPH0822644B2 (en) | 1996-03-06 |
Family
ID=17508579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3272063A Expired - Fee Related JPH0822644B2 (en) | 1991-09-24 | 1991-09-24 | Electric lock mechanism for casters in bed etc. and its operation control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0822644B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101468006B1 (en) * | 2014-06-02 | 2014-12-02 | 서천(주) | Unit for adjusting horizontality position and headrest for vehicles seat and vehicles having the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145662A (en) * | 1981-10-29 | 1983-08-30 | 日立金属株式会社 | Oxide magnetic material |
| JPH0257403A (en) * | 1988-08-19 | 1990-02-27 | Paramaunto Bed Kk | Caster operation mechanism for beds, etc. |
-
1991
- 1991-09-24 JP JP3272063A patent/JPH0822644B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58145662A (en) * | 1981-10-29 | 1983-08-30 | 日立金属株式会社 | Oxide magnetic material |
| JPH0257403A (en) * | 1988-08-19 | 1990-02-27 | Paramaunto Bed Kk | Caster operation mechanism for beds, etc. |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101468006B1 (en) * | 2014-06-02 | 2014-12-02 | 서천(주) | Unit for adjusting horizontality position and headrest for vehicles seat and vehicles having the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0822644B2 (en) | 1996-03-06 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |