JPH04173688A - Safety device of vertically opening/closing type entrance door for hydraulic elevator - Google Patents
Safety device of vertically opening/closing type entrance door for hydraulic elevatorInfo
- Publication number
- JPH04173688A JPH04173688A JP29710390A JP29710390A JPH04173688A JP H04173688 A JPH04173688 A JP H04173688A JP 29710390 A JP29710390 A JP 29710390A JP 29710390 A JP29710390 A JP 29710390A JP H04173688 A JPH04173688 A JP H04173688A
- Authority
- JP
- Japan
- Prior art keywords
- door
- engaging element
- closing
- car
- floor
- 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.)
- Pending
Links
- 230000005284 excitation Effects 0.000 claims abstract description 3
- 238000013459 approach Methods 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 10
- 238000001514 detection method Methods 0.000 description 2
Landscapes
- Types And Forms Of Lifts (AREA)
- Elevator Door Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、油圧エレベータ用上下開閉式乗場ドアの安
全装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a safety device for a vertically opening/closing landing door for a hydraulic elevator.
第1図は、油圧エレベータ用上下開閉式乗場ドアの要部
正面図で、図において、1は乗場床、2は乗場に設けら
れた第1ドア、3は第1ドアの±の速度で上下開閉移動
する第2ドア、4a、5aは第1ドア2の吊りチェーン
、6aは第2ドア3の吊りチェーン、9aは吊りチェー
ン5aとかみ合うスプロケット、9bは吊りチェーン4
aとがみ合うスプロケット、9cは吊りチェーン6aと
かみ合うスプロケット、7はつり合いおもり。Figure 1 is a front view of the main parts of a vertically opening/closing landing door for a hydraulic elevator. The second door opens and closes, 4a and 5a are suspension chains for the first door 2, 6a is a suspension chain for the second door 3, 9a is a sprocket that engages with the suspension chain 5a, and 9b is a suspension chain 4.
9c is a sprocket that engages with a, 9c is a sprocket that engages with a hanging chain 6a, and 7 is a counterweight.
5bは吊りチェーン5aのつり合いおもり7側の吊りチ
ェーン、4bは吊りチェーン4aのつり合いおもり7側
の吊りチェーン、6bは吊りチェーン6aのつり合いお
もり7側の吊りチェーン、10は図示しないかごに設け
られて電動駆動されるかごドアの駆動チェーンに係合す
る係合体、8は係合体10を有する従動チェーンで、か
ご着床時に第1ドア2および第2ドア3はかごドアに連
動して開閉される。11はチェーン6aの係止部で建物
12に固定されている。5b is a suspension chain on the counterweight 7 side of the suspension chain 5a, 4b is a suspension chain on the counterweight 7 side of the suspension chain 4a, 6b is a suspension chain on the counterweight 7 side of the suspension chain 6a, and 10 is provided on a car (not shown). An engaging body 8 is a driven chain having an engaging body 10 that engages with the drive chain of the car door which is electrically driven by the car. Ru. 11 is fixed to a building 12 by a locking portion of a chain 6a.
従来の装置は、特開昭49−113352号公報に記載
のように、開扉位置で、
第1ドア+第2ドア+チエーン(4a+5a+6a)〉
つり合いおもり+チェーン(4b+5b+6b)
として、閉じ方向に重量差を設け、その自然閉扉力に抗
してドアを保持する装置と、かごが所定量沈下したこと
を検出する検出装置と、この検出装置の動作により上記
保持装置の保持力を消滅せしめる装置とよりなっていた
。As described in Japanese Patent Application Laid-open No. 49-113352, the conventional device has the following structure in the open position: first door + second door + chain (4a + 5a + 6a)>
A device that creates a weight difference in the closing direction as a counterweight + chain (4b + 5b + 6b) and holds the door against the natural closing force, a detection device that detects that the car has sunk by a predetermined amount, and a detection device that detects that the car has sunk a predetermined amount. It consists of a device that eliminates the holding force of the holding device by operation.
上記従来技術は、ドアの重量差による閉扉であるため、
かごの自然沈下により昇降路内に設けられたカムスイッ
チが動作して、保持力が釈放されたとき、ドアが自然落
下する。そこで人、荷物などが挟まれる危険がある。ま
た停電時には保持力が釈放され、上記同様の危険がある
。なお、階床毎の乗場ドアに保持装置を設けると同時に
、昇降路内にカムスイッチを設ける必要があるから原価
高になる。The above conventional technology closes the door due to the difference in the weight of the door, so
When the car naturally settles, a cam switch installed in the hoistway operates, and the holding force is released, the door falls naturally. There is a danger that people, luggage, etc. may get caught. Furthermore, in the event of a power outage, the holding force is released, posing the same danger as above. In addition, it is necessary to provide a holding device on the landing door of each floor and at the same time provide a cam switch in the hoistway, which increases the cost.
本発明の目的は、ドアの突然の自然落下的な閉扉により
人身等が挾まれる事故を防止することができる油圧エレ
ベータ用上下開閉式乗場ドアの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 safety device for a vertically opening/closing landing door for a hydraulic elevator, which is capable of preventing accidents in which persons or the like are trapped due to the door suddenly falling and closing.
上記目的を達成するために本発明は、開扉状態でバラン
スし、閉扉位置に近づくに従い重量差を生じるチェーン
吊りのつり合いおもりを有して昇降自在とされたドアか
らなる油圧エレベータ用上下開閉式乗場ドアにおいて、
この乗場に着床するかごの天井上方に設けられて、着床
ドア開指令時に復帰ばねに抗して電磁的にドアの一部と
係合する位置に変位し、ドア全開時に前記励磁が解除さ
れる係合子を備えたものである。In order to achieve the above object, the present invention provides a vertical opening/closing system for hydraulic elevators consisting of a door that is balanced when the door is open and can be raised and lowered by having a counterweight suspended from a chain that creates a weight difference as the door approaches the closed position. At the landing door,
It is installed above the ceiling of the car that lands on this landing, and is displaced to a position where it electromagnetically engages with a part of the door against a return spring when the landing door is commanded to open, and the excitation is released when the door is fully opened. It is equipped with an engager that can be used.
本発明は、乗場に着床するかごの天井上方に設けられて
、着床ドア開指令時に復帰ばねに抗して電磁的にドアの
一部と係合する位置に変位し、ドア全開時に前記励磁が
解除される係合子により。The present invention is provided above the ceiling of a car that lands on a landing, and is displaced to a position where it electromagnetically engages with a part of the door against a return spring when the landing door is commanded to open, and when the door is fully opened, By the engager being de-energized.
かごの自然沈下に伴い乗場ドアを共に押し下げるから、
ドアの突然の自然落下的な閉扉により人身等が挾まれる
事故を防止することができる。As the car naturally sinks, the landing door is pushed down as well.
It is possible to prevent accidents in which people or the like are trapped due to the door suddenly falling and closing.
以下、本発明の一実施例を第1図ないし第3図により説
明する。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
第1図は油圧エレベータ用上下開閉式乗場ドアの要部正
面図、第2図は本装置を装着したかご着床時の側面図、
第3図はドア全開時の側面図である。Figure 1 is a front view of the main parts of a vertically opening/closable landing door for a hydraulic elevator, Figure 2 is a side view of the car with this device installed,
FIG. 3 is a side view when the door is fully open.
図において、13は係合子、13aはかごに固定され係
合子13を回動自在に支持する支点、14は電磁コイル
、14aは電磁コイル14により出没するプランジャ、
15は係合子13の復帰ばね、16はプランジャ14a
に長穴を介して連結されたレバー、16aはかごに固定
されてレバー16を回動自在に支持する支点、16cは
レバー16の一端に設けられたローラ、17はかごに固
定されて係合子の回動を制限するストッパ、16bはプ
ランジャ14aの先端部に設けられたピン、18はかと
床、他の符号は、第1図と同様の部分を示す。In the figure, 13 is an engaging element, 13a is a fulcrum fixed to the cage and rotatably supports the engaging element 13, 14 is an electromagnetic coil, 14a is a plunger that is retracted and retracted by the electromagnetic coil 14,
15 is a return spring for the engaging element 13, and 16 is a plunger 14a.
A lever 16a is fixed to the car and rotatably supports the lever 16, 16c is a roller provided at one end of the lever 16, and 17 is an engager fixed to the car. 16b is a pin provided at the tip of the plunger 14a; 18 is a foot and a floor; other symbols indicate the same parts as in FIG.
かごが着床しドア開指令が出されると、電磁コイル14
が励磁され、プランジャ14aが上方向に吸引される。When the car lands on the floor and a door opening command is issued, the electromagnetic coil 14
is excited, and the plunger 14a is attracted upward.
プランジャ14aの移動に伴い、レバー16が支点16
aを中心にして回動する。As the plunger 14a moves, the lever 16 moves to the fulcrum 16.
Rotate around a.
レバー16の回動によりローラ16cが係合子13を矢
印の方向にストップ17により制限されるまで復帰ばね
15に抗して回動する。それと同時に、第1ドア2、第
3ドア3は図示しないかごドアに連動して全開する。そ
こでドア開指令がなくなると、電磁コイル14は消磁さ
れ、プランジャ14aとレバー16は元位置に復帰する
が、係合子13は第1ドア2の側端に取り付けられたブ
ラケット2bと係合状態のままとなる。今、停電などに
よりかごが自然沈下を始めると、かごに設置された装置
本体の下方向への移動に伴い、係合子13がストッパ1
7に制限されてブラケット2bを押し下げ、第1ドア2
、第2ドア3が閉扉方向に移動する。なお、ドア全開の
位置では、第1ドア+第2ドア+チエーン(4a+5a
+68)=つり合いおもり+チェーン(4b+5b+6
b)
とバランスしているが、上記本装置により閉扉動作が進
行し全開の位置に近づくに伴い、チェーン(4a+5a
+6a)>チェーン(4b+5b+6b)
となり、第1ドア2、第2ドア3は重量差による自閉を
開始する。そこでドアの自閉速度がかごの自然沈下速度
より速くなり、ブラケット2bと係合子13との係合が
解除され、係合子13は復帰ばね15により元位置に復
帰する。The rotation of the lever 16 causes the roller 16c to rotate the engager 13 in the direction of the arrow against the return spring 15 until it is restricted by the stop 17. At the same time, the first door 2 and the third door 3 are fully opened in conjunction with a car door (not shown). When the door opening command is no longer issued, the electromagnetic coil 14 is demagnetized and the plunger 14a and lever 16 return to their original positions, but the engager 13 remains engaged with the bracket 2b attached to the side end of the first door 2. It will remain as it is. If the car starts to sink naturally due to a power outage, etc., the engager 13 will move to the stopper 1 as the main body of the device installed in the car moves downward.
7, push down the bracket 2b, and open the first door 2.
, the second door 3 moves in the closing direction. In addition, when the door is fully open, the first door + second door + chain (4a + 5a
+68) = counterweight + chain (4b+5b+6
b) However, as the door closing operation progresses with this device and approaches the fully open position, the chain (4a + 5a)
+6a)>Chain (4b+5b+6b), and the first door 2 and second door 3 start closing themselves due to the difference in weight. Then, the self-closing speed of the door becomes faster than the natural sinking speed of the car, the engagement between the bracket 2b and the engaging element 13 is released, and the engaging element 13 is returned to its original position by the return spring 15.
本発明によれば、乗場に着床するかごの天井上方に設け
られて、着床ドア開指令時に復帰ばねに抗して電磁的に
ドアの一部と係合する位置に変位し、ドア全開時に前記
励磁が解除される係合子により、かごの自然沈下に伴い
乗場ドアを共に押し下げるから、ドアの突然の自然落下
的な閉扉により人身等が挾まれる事故を防止することが
できる。According to the present invention, the car is provided above the ceiling of a car that lands on the landing, and is displaced to a position where it electromagnetically engages with a part of the door against a return spring when the landing door is commanded to open, and the door is fully opened. Since the engaging element, which is de-energized at the same time, pushes down the landing door as the car naturally sinks, it is possible to prevent an accident in which someone is trapped due to the sudden closing of the door due to its natural fall.
第1図は本発明の油圧エレベータ用上下開閉式乗場ドア
の安全装置の一実施例を示す要部正面図、第2図は本装
置を装着したかご着床時の側面図、第3図はドア全開時
の側面図である。
2・・・・・・第1ドア、2b・・・・・・ブラケット
、13・・・・・・係合子、14・・・・・・電磁コイ
ル、14a・・・・・・プランジャ、15・・・・・・
復帰ばね、16・・・・・・レバー、17・・・・・・
ストッパ。
第1図
1□
第2図 第3図Fig. 1 is a front view of essential parts showing an embodiment of the safety device for a vertically opening/closing landing door for a hydraulic elevator according to the present invention, Fig. 2 is a side view of the car with this device installed, and Fig. 3 is a side view of the safety device of the present invention. It is a side view when the door is fully open. 2...First door, 2b...Bracket, 13...Engager, 14...Electromagnetic coil, 14a...Plunger, 15・・・・・・
Return spring, 16...Lever, 17...
Stopper. Figure 1 1□ Figure 2 Figure 3
Claims (1)
重量差を生じるチェーン吊りのつり合いおもりを有して
昇降自在とされたドアからなる油圧エレベータ用上下開
閉式乗場ドアの安全装置において、この乗場に着床する
かごの天井上方に設けられて、着床ドア開指令時に復帰
ばねに抗して電磁的にドアの一部と係合する位置に変位
し、ドア全開時に前記励磁が解除される係合子を備えた
ことを特徴とする油圧エレベータ用上下開閉式乗場ドア
の安全装置。(1) A safety device for a vertically opening/closing landing door for a hydraulic elevator consisting of a door that is balanced in the open state and can be raised or lowered by having a counterweight suspended from a chain that produces a weight difference as the door approaches the closed position. It is installed above the ceiling of the car that lands on the landing, and is displaced to a position where it electromagnetically engages with a part of the door against a return spring when the landing door is commanded to open, and the excitation is released when the door is fully opened. A safety device for a vertically opening/closing landing door for a hydraulic elevator, characterized by being equipped with an engaging element.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29710390A JPH04173688A (en) | 1990-11-05 | 1990-11-05 | Safety device of vertically opening/closing type entrance door for hydraulic elevator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29710390A JPH04173688A (en) | 1990-11-05 | 1990-11-05 | Safety device of vertically opening/closing type entrance door for hydraulic elevator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04173688A true JPH04173688A (en) | 1992-06-22 |
Family
ID=17842250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29710390A Pending JPH04173688A (en) | 1990-11-05 | 1990-11-05 | Safety device of vertically opening/closing type entrance door for hydraulic elevator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04173688A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108502686A (en) * | 2017-02-24 | 2018-09-07 | 日立电梯(中国)有限公司 | A kind of safety protector of elevator door |
-
1990
- 1990-11-05 JP JP29710390A patent/JPH04173688A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108502686A (en) * | 2017-02-24 | 2018-09-07 | 日立电梯(中国)有限公司 | A kind of safety protector of elevator door |
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