JPH0532308B2 - - Google Patents
Info
- Publication number
- JPH0532308B2 JPH0532308B2 JP58110806A JP11080683A JPH0532308B2 JP H0532308 B2 JPH0532308 B2 JP H0532308B2 JP 58110806 A JP58110806 A JP 58110806A JP 11080683 A JP11080683 A JP 11080683A JP H0532308 B2 JPH0532308 B2 JP H0532308B2
- Authority
- JP
- Japan
- Prior art keywords
- door
- actuating piece
- rod
- piece
- curved surface
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Elevator Door Apparatuses (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、エレベーター等に用いる電動扉の扉
安全装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a door safety device for an electric door used in an elevator or the like.
従来の扉構造をエレベーター用横開き扉に例を
とり、第１図により説明する。第１図において、
作動片２は扉１に固定された上座３、下座４を介
して、レバー５により扉１に、その開閉方向に可
動的に取付けてある。ここで扉１が閉扉中に、人
体または荷物が作動片２に触れた場合に、上座
３、下座４を支点としてレバー５が斜め上方向に
回転し、作動片２が後退する。このとき、下部の
レバー５の動作により、スイツチ６が作動し、扉
用電動機（図示せず）に接続されたコード７を通
じて、この扉用電動機を逆回転させ、扉１を反転
させる。これは、扉への人体や荷物のはさまれ事
故を防止するうえで欠かせない安全構造であり、
エレベーターでは、現在では、標準的に装備され
ている。また、作動片２の移動方向は第２図のＡ
方向だけではなく、B1，B2方向即ち、扉１の前
後方向に回動できるように構成された扉安全装置
が実開昭48−110862号公報に記載されている。
A conventional door structure will be explained with reference to FIG. 1, taking a horizontally swinging elevator door as an example. In Figure 1,
The operating piece 2 is attached to the door 1 movably in the opening/closing direction by a lever 5 via an upper seat 3 and a lower seat 4 fixed to the door 1. Here, when a human body or luggage touches the actuating piece 2 while the door 1 is closed, the lever 5 rotates obliquely upward using the upper seat 3 and the lower seat 4 as fulcrums, and the actuating piece 2 retreats. At this time, the switch 6 is actuated by the operation of the lower lever 5, and the door motor is reversely rotated through the cord 7 connected to the door motor (not shown), thereby inverting the door 1. This is an indispensable safety structure to prevent accidents where people or luggage get caught in the door.
Elevators are now standard equipment. Also, the moving direction of the actuating piece 2 is A in FIG.
Japanese Utility Model Application Publication No. 110862/1982 describes a door safety device that is configured to be able to rotate not only in the direction but also in the B1 and B2 directions, that is, in the front-rear direction of the door 1.
上記従来の構成では、B1，B2方向に回動した
作動片を元の位置（通常の位置）に復帰させる手
段が、２枚の板ばねでレバーを挟込む構成となつ
ているので、レバーの挟込みが浅いと作動片の回
動に伴つて挟込みが簡単に外れてしまつて復帰が
不能になり、また反対にレバーの挟込みが深くな
ると狭い作動片内において板ばねのレバーによる
広がりを制限してしまうので、作動片の回動範囲
を狭くしてしまい、この範囲を越えて作動片を回
動しようとすると、周辺部材を破壊することにな
る。
In the above conventional configuration, the means for returning the actuating piece rotated in the B 1 and B 2 directions to its original position (normal position) is such that the lever is sandwiched between two leaf springs. If the lever is not tightly clamped, the clamp will easily come off as the actuating piece rotates, making it impossible to return to its original position.On the other hand, if the lever is deeply clamped, the leaf spring lever will not work properly within the narrow actuating piece. Since the spread is restricted, the range of rotation of the actuating piece is narrowed, and if an attempt is made to rotate the actuating piece beyond this range, the surrounding members will be destroyed.
本発明の目的は、作動片の回動範囲を広くでき
る扉安全装置を提供することにある。 SUMMARY OF THE INVENTION An object of the present invention is to provide a door safety device that can widen the rotation range of an operating piece.
上記目的は、電動機により駆動開閉される扉の
先端に配置され、前記扉に軸支したレバーにより
前記扉の開閉方向に動き得るように支持され、か
つ前記レバーに対して前記扉の前後方向に回動し
得るように支持された作動片と、この作動片が前
記扉の前後方向に回動したとき元の位置に戻す復
帰手段と、前記作動片の動作により前記扉の動き
を反転させる扉反転回路を形成するスイツチとを
備えた扉安全装置において、前記作動片を前記扉
の前後方向に回動し得るように連結体に支持する
と共に、この連結体を前記扉の前後方向に回動し
得るように前記レバーに支持し、前記復帰手段
を、内端が前記作動片内側に位置し先端部が前記
作動片の後方外側へ突出するロツドと、このロツ
ドを前記先端部側へ押付ける弾性体と、前記連結
体に設けられ前記ロツドの先端部と接して前記押
付け力を受ける凹曲面とで構成し、この凹曲面と
前記作動片の回動中心との間の距離が前記作動片
の回動方向に連続的に小さくなるように形成した
ことにより達成される。
The above purpose is to be placed at the tip of a door that is driven to open and close by an electric motor, to be supported so as to be movable in the opening and closing direction of the door by a lever pivoted on the door, and to be movable in the front and back direction of the door with respect to the lever. an actuating piece supported so as to be rotatable; a return means for returning the actuating piece to its original position when the actuating piece rotates in the front-back direction of the door; and a door that reverses the movement of the door by the operation of the actuating piece. In a door safety device comprising a switch forming a reversing circuit, the actuating piece is supported on a connecting body so as to be rotatable in the front-back direction of the door, and the connecting body is rotatable in the front-back direction of the door. The return means includes a rod whose inner end is located inside the actuating piece and whose tip protrudes outward to the rear of the actuating piece, and the rod is pressed toward the tip side. an elastic body, and a concave curved surface provided on the connecting body to receive the pressing force in contact with the tip of the rod, and the distance between the concave curved surface and the center of rotation of the actuating piece is equal to This is achieved by forming it so that it becomes smaller continuously in the direction of rotation.
上記構成とすることにより、復帰手段の凹曲面
とロツドの先端部とが作動片の外側に位置するの
で、前記作動片の回動動作を制限するものはな
り、回動範囲を広くすることができる。
With the above configuration, since the concave curved surface of the return means and the tip of the rod are located outside the actuating piece, there is no restriction on the rotational movement of the actuating piece, and the rotating range can be widened. can.
以下本発明の実施例を第３〜９図にもとづいて
説明する。
Embodiments of the present invention will be described below based on FIGS. 3 to 9.
第３図では、作動片２とレバー５の間に連結体
８を設ける。さらに、この連結体８には作動片２
が左右方向に回転したとき、すなわち、作動片２
に第２図に示すB1あるいはB2方向の外力が加わ
つたときに、作動片２が動くことにより作動し、
扉反転回路を形成するスイツチ９と、左右方向に
回転した作動片２を外力がなくなつたときに通常
の状態に復帰させる復帰装置１０が取り付けてあ
る。ここで各機構について以下詳述する。 In FIG. 3, a connecting body 8 is provided between the actuating piece 2 and the lever 5. Furthermore, this connecting body 8 has an actuating piece 2.
When the actuating piece 2 rotates in the left-right direction, that is, the actuating piece 2
When an external force is applied in the direction B1 or B2 shown in Fig. 2, the actuating piece 2 moves to operate,
A switch 9 forming a door reversing circuit and a return device 10 for returning the operating piece 2 rotated in the left-right direction to its normal state when the external force is removed are installed. Each mechanism will be described in detail below.
連結体８と作動片２は第４図、第５図に示す機
構により、連絡される。 The connecting body 8 and the actuating piece 2 are connected by a mechanism shown in FIGS. 4 and 5.
第４図に示すように、連結体８には作動片２と
嵌合する部分に支点ピン１１が取り付けてあり、
この支点ピン１１が作動片２の後方に取り付けら
れた嵌合片１２と嵌合し、第５図に示す矢印方向
に支点ピン１１、すなわち、作動片２の後方を支
点として回転可能となつている。もちろん、連結
機構は下部連結体部分にも装備されるものであ
り、これにより、作動片２は従来のように扉の開
閉方向、に動き得て、さらに、左右方向にも回転
可能となる。 As shown in FIG. 4, a fulcrum pin 11 is attached to the connecting body 8 at a portion that fits into the actuating piece 2.
This fulcrum pin 11 is fitted with a fitting piece 12 attached to the rear of the actuating piece 2, and is rotatable in the direction of the arrow shown in FIG. There is. Of course, the connecting mechanism is also installed in the lower connecting body part, so that the operating piece 2 can move in the door opening/closing direction as in the conventional case, and can also rotate in the left and right directions.
第６図は、作動片２が前述のように左右方向に
回転したとき、その動きを検出し扉反転回路を形
成させるスイツチの構成を示す。 FIG. 6 shows the configuration of a switch that detects the movement of the operating piece 2 when it rotates in the left-right direction as described above and forms a door reversing circuit.
第６図に示すように、スイツチ９は連結体８に
取り付けられ、作動片２の後方に取り付けられた
山形の操作体１３の頂部１３ａで、通常は、アク
チユエーター９ａは押された状態にある。 As shown in FIG. 6, the switch 9 is attached to the connecting body 8, and the actuator 9a is normally in the pressed state at the top 13a of the chevron-shaped operating body 13 attached to the rear of the actuating piece 2. be.
このように構成されたスイツチ９は、作動片２
が左右方向に回転中心Ｃ、すなわち、第５図にお
ける支点ピン１１を中心として回転すると、アク
チユエーター９ａが操作体１３の側面１３ｂにそ
つて作動片側に突き出し、スイツチ９が解放さ
れ、スイツチの開閉状態が逆転し、扉反転回路を
形成する仕組みになつている。 The switch 9 configured in this way has an actuating piece 2.
When the switch rotates in the left-right direction about the rotation center C, that is, the fulcrum pin 11 in FIG. The opening/closing state is reversed, forming a door reversal circuit.
ここで操作体１３の形状は第６図に示したよう
な単純な山形の他に、第７図に示すように、基本
的には山形であるが、頂部１３ａが平らで、さら
に側面１３ｂに小さなくぼみ１３ｃをつけたもの
でも良い。このくぼみ１３ｃは、その底部でスイ
ツチ９が解放されるような寸法につくられたもの
で、これによれば、スイツチ９の解放位置の設
定、すなわち、作動片２がどのくらい扉の前後方
向に回転したときに扉反転回路を形成させるかの
設定が容易となる。 Here, the shape of the operating body 13 is not only a simple chevron shape as shown in FIG. 6, but also a chevron shape as shown in FIG. It may also be one with a small depression 13c. This recess 13c is dimensioned so that the switch 9 can be released at its bottom. According to this recess 13c, it is possible to set the release position of the switch 9, that is, how far the actuating piece 2 rotates in the front-rear direction of the door. It becomes easy to set whether to form a door reversal circuit when the door reverses.
第８図は扉の前後方向に回転した作動片２を通
常の状態に復帰させる復帰装置１０の構成を示
す。 FIG. 8 shows the configuration of a return device 10 for returning the operating piece 2 rotated in the front-rear direction of the door to its normal state.
第８図に示すように、この復帰装置１０は、連
結体８に取り付けられた円弧状の凹曲面を有する
受け板１４と、作動片２の内側に固定された保持
具１５と、この保持具１５に保持された復帰バネ
１６と、バネ座１７をもつロツド１８により構成
される。このような構成から、ロツド１８は復帰
バネ１６のバネ力により、常に、受け板１４の方
向に押力を持つようになつている。ロツド１８の
先端には転動体１９が取り付けられているが、こ
れは作動片２が扉の前後方向に回転した後、通常
の状態に復帰しようとしたとき、受け板１４とロ
ツド１８の間の摩擦力を小くさするためのもの
で、これによりロツド１８を直接受け板１４に接
触させた場合よりも小さい力で作動片２を通常の
状態に復帰させることができると共に、ロツド１
８を受け板１４の固渋などによる誤動作を防ぐこ
とができる。 As shown in FIG. 8, this return device 10 includes a receiving plate 14 having an arc-shaped concave curved surface attached to a connecting body 8, a holder 15 fixed to the inside of the actuating piece 2, and this holder. It is composed of a return spring 16 held by a spring 15 and a rod 18 having a spring seat 17. With this configuration, the rod 18 always has a pressing force in the direction of the receiving plate 14 due to the spring force of the return spring 16. A rolling element 19 is attached to the tip of the rod 18, which prevents the movement between the receiving plate 14 and the rod 18 when the actuating piece 2 attempts to return to its normal state after rotating in the front-rear direction of the door. This is to reduce the frictional force, so that the actuating piece 2 can be returned to its normal state with a smaller force than when the rod 18 is brought into direct contact with the receiving plate 14.
8 can prevent malfunctions due to stiffness of the receiving plate 14, etc.
作動片２の復帰原理を第９図を用いて説明す
る。いま、作動片２がドア開閉方向と直角方向の
外力により、扉の前後方向に回転中心Ｃを中心に
回転した場合、受け板１４の円弧径Ｒを作動片２
が通常の状態にある場合の回転中心Ｃを受け板１
４の間隔Ｌより小さく設定してあるため、回転中
心Ｃとロツド１８の先端に取り付られた転動体１
９の距離ｌが減少する。すなわち、ロツド１８が
作動片２の中に押し込められた状態となり、この
とき、ロツド１８に取り付けられたバネ座１７を
介して、復帰バネ１６が圧縮され、ロツド１８を
受け板１４に押し付けているバネ力Ｐが増加す
る。そして、このバネ力Ｐは、転動体１９と受け
板１４の接点で、転動体１９が受け板１４を押し
付ける力F1と、回転中心Ｃを中心としてロツド
１８を回転させようとする力F2の２つの分力と
なり、この分力F2が作動片２を通常の状態に復
帰させようとする復帰力となるからである。な
お、実際の作動片２の復帰力F3は、回転中心Ｃ
と転動体１９の距離ｌと、回転中心Ｃと作動片先
端までの距離L1により分力F2を換算して決定さ
れるため、扉の大きさ、作動片２の大きさなどに
より所要の復帰力F2を得るため、復帰バネ１６
のバネ力、受け板１４の円弧径Ｒを計算により適
切に選定することが肝要である。 The principle of return of the actuating piece 2 will be explained using FIG. 9. Now, when the actuating piece 2 rotates around the rotation center C in the front-rear direction of the door due to an external force perpendicular to the door opening/closing direction, the arc diameter R of the receiving plate 14 is changed to the actuating piece 2.
The center of rotation C when is in the normal state is the receiving plate 1
Since the spacing L is set smaller than the spacing L of the rod 18, the center of rotation C and the rolling element 1 attached to the tip of the rod 18
The distance l of 9 decreases. That is, the rod 18 is pushed into the actuating piece 2, and at this time, the return spring 16 is compressed via the spring seat 17 attached to the rod 18, pressing the rod 18 against the receiving plate 14. Spring force P increases. This spring force P is composed of a force F1 where the rolling element 19 presses against the receiving plate 14 at the contact point between the rolling element 19 and the receiving plate 14, and a force F2 which attempts to rotate the rod 18 about the center of rotation C. This is because the component force F2 becomes the return force that attempts to return the actuating piece 2 to its normal state. Note that the actual return force F 3 of the actuating piece 2 is the center of rotation C
Since it is determined by converting the component force F 2 using the distance l between the rolling element 19 and the distance L 1 between the center of rotation C and the tip of the actuating piece, the required amount depends on the size of the door, the size of the actuating piece 2, etc. In order to obtain the return force F2 , the return spring 16
It is important to appropriately select the spring force and the arc diameter R of the receiving plate 14 by calculation.
なお、復帰装置１０の受け板１４には第１０
図、第１１図に示した形状も有効である。 Note that the receiving plate 14 of the return device 10 has a 10th
The shapes shown in Figures 1 and 11 are also effective.
第１０図はロツド１８の通常セツト位置、すな
わち、作動片２が通常の状態にある場合に、ロツ
ド１８の先端の転動体１９と受け板１４の接点
に、受け板１４の円弧径より小さい円弧径の凹部
１４ａを設けたものである。この凹部は図示のよ
うに転動体１９の半径と略同一の円弧径に設定し
ても良く、これにより、作動片２を通常の状態に
保持する保持力が増し、扉の開閉よる作動片２の
ふらつき、また、このふらつきによるスイツチ９
の誤動作を防ぐことができる。 FIG. 10 shows the normal setting position of the rod 18, that is, when the actuating piece 2 is in the normal state, an arc smaller than the arc diameter of the receiving plate 14 is formed at the contact point between the rolling element 19 at the tip of the rod 18 and the receiving plate 14. A concave portion 14a having a diameter is provided. The concave portion may be set to have an arc diameter that is approximately the same as the radius of the rolling element 19 as shown in the figure, thereby increasing the holding force for holding the actuating piece 2 in a normal state, and allowing the actuating piece 2 to be moved by opening and closing the door. Also, the switch 9 due to this wobbling
can prevent malfunctions.
第１１図は第９図により説明した受け板１４の
円弧径を単一の円弧径Ｒではなく、受け板１４の
中央部の円弧径R2を両側部の円弧径R1より小さ
く設定してある。これは、第９図で説明した分力
F2が作動片２が通常の状態に戻つてくるにした
がつて小さくなるのを防ぐものである。すなわ
ち、分力F2は、第９図で説明したバネ力Ｐと、
転動体１９が受け板を押し付ける力F1との成す
角度により決定されるが、作動片２が通常の状態
に戻つてくるにしたがつて、この角度が小さくな
り、分力F2も小さくなる。従つて、受け板１４
の中央部で両側部より小さい円弧径を設定するこ
とは、バネ力Ｐと転動体１９が受け板１４を押し
付ける力F1との成す角度を大きくし、受け板中
央部での分力F2の減少、つまり、作動片２の復
帰力F3の減少を防止するのに効果的な手段であ
る。もちろん、この受け板１４の円弧径の設定は
このように２段階にするばかりでなく、３段階以
上に適切な円弧径をもつて変化させればより効果
的であるが、製作上非常に難かしくなり、前述の
ように、２段階に適切な円弧径R1，R2にすれば
充分な復帰力が得られることは実験により明らか
となつており、不必要に複雑な形状とすることは
コスト面からも望ましくない。 In FIG. 11, the arc diameter of the receiving plate 14 explained in FIG. 9 is not a single arc diameter R, but the arc diameter R 2 at the center of the receiving plate 14 is set smaller than the arc diameter R 1 at both sides. be. This is the component force explained in Figure 9.
This prevents F 2 from becoming smaller as the actuating piece 2 returns to its normal state. That is, the component force F 2 is the spring force P explained in FIG.
It is determined by the angle formed by the force F 1 that the rolling element 19 makes against the receiving plate, but as the actuating piece 2 returns to its normal state, this angle becomes smaller and the component force F 2 also becomes smaller. . Therefore, the receiving plate 14
Setting a smaller arc diameter at the center than on both sides increases the angle between the spring force P and the force F 1 with which the rolling elements 19 press against the receiving plate 14, and increases the component force F 2 at the center of the receiving plate. This is an effective means for preventing a decrease in the return force F3 of the actuating piece 2. Of course, it would be more effective to set the arc diameter of the receiving plate 14 not only in two stages, but also in three or more stages, but this would be extremely difficult to manufacture. As mentioned above, experiments have shown that sufficient return force can be obtained by making the arc diameters R 1 and R 2 appropriate for the two stages, and it is important to avoid making the shape unnecessarily complicated. This is also undesirable from a cost standpoint.
なお、第１０図、第１１図で説明した受け板１
４の中央部の凹部、および、受け板１４の円弧径
の２段階の設定は、両者を併用した受け板状とし
ても良く、これによればより効果的な受け板が得
られる。 Note that the receiving plate 1 explained in FIGS. 10 and 11
The concave portion at the center of 4 and the two-step setting of the arcuate diameter of the receiving plate 14 may be combined into a receiving plate shape, and thereby a more effective receiving plate can be obtained.
また、以上説明した扉安全装置で横開き扉に例
をとつて詳述したが、荷物用エレベーターなどに
多い上、下開閉扉にも利用できる。 Further, although the above-described door safety device has been explained in detail by taking an example of a side-opening door, it is often used in luggage elevators and the like, and can also be used for bottom-opening doors.
さらに、復帰装置１０は第３図で連結体８の
各々に取り付けた構造を示したが、扉高さの高い
ものなどで、連結体８を多く要するものでは、所
要の復帰力を得られれば、連結体各々に取り付け
る必要もなく、また、連結体８に取り付けること
が不可能な場合は、扉１の適切な位置に取り付け
ても良い。 Further, although the structure of the return device 10 shown in FIG. 3 is shown in which it is attached to each of the connecting bodies 8, in the case where a large number of connecting bodies 8 are required, such as a door with a high height, it is necessary to obtain the required return force. , it is not necessary to attach it to each connecting body, and if it is impossible to attach it to the connecting body 8, it may be attached at an appropriate position on the door 1.
〔発明の効果〕
本発明によれば、乗客や台車などに押されて回
動する作動片の回動範囲を広くできる扉安全装置
を得ることができる。[Effects of the Invention] According to the present invention, it is possible to obtain a door safety device that can widen the rotation range of an actuating piece that rotates when pushed by a passenger, a trolley, or the like.
第１図は従来の扉安全装置の全体構造図、第２
図は作動片の動作する方向の説明図、第３図は本
発明の一実施例の扉安全装置の全体構造図、第４
図は第３図の部の詳細図、第５図は第４図の
−矢視断面図、第６図は第３図の−矢視断
面図、第７図は第６図の他の一実施例の断面図、
第８図は第３図の−矢視断面図、第９図は作
動片の復帰原理の説明図、第１０図、第１１図は
受け板形状の他の一実施例の説明図である。
１……扉、２……作動片、３……上座、５……
レバー、６……スイツチ、７……コード、８……
連結体、９……スイツチ、１０……復帰装置。
Figure 1 is an overall structural diagram of a conventional door safety device, Figure 2
The figure is an explanatory diagram of the direction in which the actuating piece operates, Figure 3 is an overall structural diagram of a door safety device according to an embodiment of the present invention, and Figure 4
The figure is a detailed view of the part shown in Fig. 3, Fig. 5 is a cross-sectional view taken in the - arrow direction of Fig. 4, Fig. 6 is a sectional view taken in the - arrow direction of Fig. 3, and Fig. 7 is a detailed view of the part shown in Fig. 6. A cross-sectional view of the embodiment,
FIG. 8 is a sectional view taken along the - arrow in FIG. 3, FIG. 9 is an explanatory diagram of the principle of return of the operating piece, and FIGS. 10 and 11 are explanatory diagrams of another embodiment of the receiving plate shape. 1...door, 2...operating piece, 3...upper seat, 5...
Lever, 6...Switch, 7...Code, 8...
Connecting body, 9... switch, 10... return device.
Claims (1)
され、前記扉に軸支したレバーにより前記扉の開
閉方向に動き得るように支持され、かつ前記レバ
ーに対して前記扉の前後方向に回動し得るように
支持された作動片と、この作動片が前記扉の前後
方向に回動したとき元の位置に戻す復帰手段と、
前記作動片の動作により前記扉の動きを反転させ
る扉反転回路を形成するスイツチとを備えた扉安
全装置において、前記作動片を前記扉の前後方向
に回動し得るように連結体に支持すると共に、こ
の連結体を前記扉の前後方向に回動し得るように
前記レバーに支持し、前記復帰手段を、内端が前
記作動片内側に位置し先端部が前記作動片の後方
外側へ突出するロツドと、このロツドを前記先端
部側へ押付ける弾性体と、前記連結体に設けられ
前記ロツドの先端部と接して前記押付け力を受け
る凹曲面とで構成し、この凹曲面と前記作動片の
回動中心との間の距離が前記作動片の回動方向に
連続的に小さくなるように形成したことを特徴と
する扉安全装置。 ２ 前記ロツドは、先端部に前記凹曲面よりも小
径の転動体を有することを特徴とする特許請求の
範囲第１項記載の扉安全装置。 ３ 前記凹曲面は、前記作動片の正常位置におい
て前記ロツドの押力を受ける位置に前記凹曲面よ
りも小径の凹曲面を有することを特徴とする特許
請求の範囲第１項記載の扉安全装置。[Scope of Claims] 1. A door that is disposed at the tip of a door that is driven to open and close by an electric motor, is supported so as to be movable in the opening and closing direction of the door by a lever that is pivotally supported on the door, and that the door is moved relative to the lever. an actuating piece supported so as to be rotatable in the front-rear direction; and a return means for returning the actuating piece to its original position when the actuating piece rotates in the front-rear direction of the door;
A door safety device comprising a switch forming a door reversing circuit that reverses the movement of the door by the operation of the actuation piece, wherein the actuation piece is supported by a connecting body so as to be rotatable in the front-rear direction of the door. At the same time, this connecting body is supported by the lever so as to be rotatable in the front-rear direction of the door, and the return means has an inner end located inside the actuating piece and a distal end protruding outward to the rear of the actuating piece. the rod, an elastic body that presses the rod toward the tip end, and a concave curved surface provided on the connecting body that contacts the tip of the rod and receives the pressing force, and the concave curved surface and the actuation A door safety device characterized in that the distance between the actuating piece and the center of rotation thereof is formed so as to continuously decrease in the rotating direction of the actuating piece. 2. The door safety device according to claim 1, wherein the rod has a rolling element having a smaller diameter than the concave curved surface at its tip end. 3. The door safety device according to claim 1, wherein the concave curved surface has a concave curved surface smaller in diameter than the concave curved surface at a position receiving the pushing force of the rod in the normal position of the actuating piece. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11080683A JPS606580A (en) | 1983-06-22 | 1983-06-22 | Safety device for door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11080683A JPS606580A (en) | 1983-06-22 | 1983-06-22 | Safety device for door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS606580A JPS606580A (en) | 1985-01-14 |
| JPH0532308B2 true JPH0532308B2 (en) | 1993-05-14 |
Family
ID=14545124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11080683A Granted JPS606580A (en) | 1983-06-22 | 1983-06-22 | Safety device for door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS606580A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63123573U (en) * | 1987-02-03 | 1988-08-11 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48110862U (en) * | 1972-03-28 | 1973-12-20 |
-
1983
- 1983-06-22 JP JP11080683A patent/JPS606580A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS606580A (en) | 1985-01-14 |
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