JP5239243B2

JP5239243B2 - Elevator safety device and repair method thereof

Info

Publication number: JP5239243B2
Application number: JP2007193825A
Authority: JP
Inventors: 英明湯浅
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2007-07-25
Filing date: 2007-07-25
Publication date: 2013-07-17
Anticipated expiration: 2027-07-25
Also published as: JP2009029552A

Description

この発明は、エレベーターの安全装置に関するものである。 The present invention relates to an elevator safety device.

従来におけるエレベーターの安全装置については、開閉扉の前端縁に沿って僅かに先行し得るようにしたセーフティシューを一対の作動杆で前記開閉扉に進退自在に枢着し、前記セーフティシューを扉全閉位置又は全開位置附近で後退させるようにしたエレベーターの扉開閉装置において、前記作動杆の少なくとも一方の回動通路上に第１スイッチ及び第２スイッチを相対的にずらして設け、前記セーフティシューが前記開閉扉の前端縁よりも内方へ押動されたとき、これに起因して前記第２スイッチを作動し、前記開閉扉をリオープン又は停止し得るようにしたものが知られている（例えば、特許文献１参照）。 With regard to a conventional elevator safety device, a safety shoe that can be slightly advanced along the front edge of the door is pivotally attached to the door with a pair of operating rods, and the safety shoe is attached to the entire door. In an elevator door opening / closing device that is retracted in the vicinity of a closed position or a fully open position, a first switch and a second switch are relatively shifted on at least one rotation passage of the operating rod, and the safety shoe When the door is pushed inward from the front edge of the door, it is known that the second switch is operated due to this and the door can be reopened or stopped ( For example, see Patent Document 1).

特開昭４９−１２８４４０号公報JP-A-49-128440

近年、エレベーターは個人住宅用のホームエレベーターとしての設置や、高層マンションへの設置等、生活に密着した用途に対し急速に適用されており、従来に増してより一層の安全性を求められているといえる。
しかしながら、特許文献１に示された従来におけるエレベーターの安全装置においては、戸閉動作時における扉による異物挟み込みの検知を目的とし、完全戸閉後にはこの検知機能が機能しないようになっているため、紐状や布状等の厚みの薄い物体が扉に挟み込まれた場合に、この挟み込みを検知する、すなわち、セーフティシューのスイッチを作動させることができず、扉に異物を挟み込んだまま乗りかごが走行してしまうおそれがあるという課題がある。
また、セーフティシューにおける機械的スイッチによる検知に比べ、検知精度及び反応性能が高いことから現在多く採用されている、光学的センサーや電気的センサーによる異物挟み込みの検知においても、断面積の小さい紐状物体等を検知できるようにすると、今度は誤検知が増加してしまうため、断面積の小さい紐状物体等を高精度に検知することは困難である。そのため、紐状物体等が扉に挟み込まれた場合に、この挟み込みを検知することができず、扉に異物を挟み込んだまま乗りかごが走行してしまうおそれがあるという、前述した特許文献１に示された従来におけるエレベーターの安全装置における課題と同様の課題がある。 In recent years, elevators have been rapidly applied to applications that are closely related to daily life, such as installation as home elevators for individual houses and installation in high-rise condominiums, and even higher safety is required than ever before. It can be said.
However, the conventional elevator safety device disclosed in Patent Document 1 is intended to detect foreign object pinching by the door during the door closing operation, and this detection function does not function after the door is completely closed. When a thin object such as a string or cloth is caught in the door, this is detected.In other words, the safety shoe switch cannot be operated, and a foreign object is caught in the door. There is a problem that there is a risk of running.
In addition, it is a string with a small cross-sectional area in detecting foreign object pinching by optical sensors and electrical sensors, which are currently widely used because of its high detection accuracy and response performance compared to detection by mechanical switches in safety shoes. If an object or the like can be detected, erroneous detection increases this time, and it is difficult to detect a string-like object or the like having a small cross-sectional area with high accuracy. Therefore, when a string-like object or the like is sandwiched in the door, this sandwiching cannot be detected, and there is a risk that the car may travel with a foreign object sandwiched in the door. There is a problem similar to that of the conventional elevator safety device shown.

この発明は、前述のような課題を解決するためになされたもので、簡潔な構成によって、紐状や布状等の厚みの薄い物体が扉に挟み込まれた状態での乗りかご走行等を検知し、この検知により適切な緊急動作を行うことができるエレベーターの安全装置を得るものである。 The present invention has been made to solve the above-described problems. With a simple structure, the present invention detects a car traveling in a state where a thin object such as a string or cloth is sandwiched between doors. And the safety device of the elevator which can perform appropriate emergency operation by this detection is obtained.

この発明に係るエレベーターの安全装置においては、エレベーターの昇降路内を昇降する乗りかごと、前記乗りかごに設けられたかご出入口と、前記かご出入口を開閉する左側かご戸及び右側かご戸と、前記左側かご戸の戸当り側に設けられた左側接触板と、前記右側かご戸の戸当り側に設けられた右側接触板と、前記左側かご戸及び前記右側かご戸が全閉している場合において、紐状物体又は布状物体が前記左側接触板と前記右側接触板との間に挟持された状態で引張られたとき、前記左側接触板の前記左側かご戸に対する上下方向の変位及び前記右側接触板の前記右側かご戸に対する上下方向の変位のうち少なくともいずれか一方を検知する接触板変位検知手段と、前記接触板変位検知手段が前記変位を検知した際に、前記乗りかごが上昇又は下降しているときは前記乗りかごの上昇又は下降を停止する制御手段と、を備え、前記左側接触板及び前記右側接触板の両者は、前記両者の間に紐状物体又は布状物体を挟持した状態で引張られたとき、前記両者の間に紐状物体又は布状物体を挟持した状態を保ったまま、前記左側かご戸及び前記右側かご戸に対して上下方向に変位するよう設けられた構成とする。
また、エレベーターの昇降路内を昇降する乗りかごと、前記乗りかごに設けられたかご出入口と、前記かご出入口を開閉する左側かご戸及び右側かご戸と、前記左側かご戸の戸当り側に設けられた左側接触板と、前記右側かご戸の戸当り側に設けられた右側接触板と、前記左側かご戸及び前記右側かご戸が全閉している場合において、紐状物体又は布状物体が前記左側接触板と前記右側接触板との間に挟持された状態で引張られたとき、前記左側接触板の前記左側かご戸に対する上下方向の変位及び前記右側接触板の前記右側かご戸に対する上下方向の変位のうち少なくともいずれか一方を検知する接触板変位検知手段と、前記接触板変位検知手段が前記変位を検知した際に、前記乗りかごが上昇又は下降しているときは前記乗りかごの上昇又は下降を停止する制御手段と、を備え、前記左側接触板は、前記左側接触板の反戸当り側に設けられた左側延設部と、前記左側接触板を上方向へと付勢する上側引張りバネと、前記左側接触板を下方向へと付勢する下側引張りバネと、前記左側接触板に穿設され、上下方向に長径を持つ長孔と、前記長孔内に位置して前記左側かご戸に固着され、前記左側接触板の前記左側かご戸に対する摺動方向を上下方向に案内するピンと、を備え、前記右側接触板は、前記右側接触板の反戸当り側に設けられた右側延設部と、前記右側接触板を上方向へと付勢する上側引張りバネと、前記右側接触板を下方向へと付勢する下側引張りバネと、前記右側接触板に穿設され、上下方向に長径を持つ長孔と、前記長孔内に位置して前記右側かご戸に固着され、前記右側接触板の前記右側かご戸に対する摺動方向を上下方向に案内するピンと、を備え、前記接触板変位検知手段は、前記左側延設部及び前記右側延設部のうち少なくともいずれか一方の反戸当り側に取付された正面視略コ字型の作動金と、前記作動金が取付された側に対応する前記左側かご戸及び前記右側かご戸の、前記作動金に対向する位置に取付され、スイッチローラを有するスイッチと、を備えた構成とする。
さらにまた、エレベーターの昇降路内を昇降する乗りかごと、前記乗りかごに設けられたかご出入口と、前記かご出入口を開閉する左側かご戸及び右側かご戸と、上下一対の左側リンクにより前記左側かご戸に対して進退自在に枢着された左側シュー基台と、上下一対の右側リンクにより前記右側かご戸に対して進退自在に枢着された右側シュー基台と、前記左側シュー基台の戸当り側に設けられた左側接触板と、前記右側シュー基台の戸当り側に設けられた右側接触板と、前記左側かご戸及び前記右側かご戸が全閉している場合において、紐状物体又は布状物体が前記左側接触板と前記右側接触板との間に挟持された状態で引張られたとき、前記左側接触板の前記左側シュー基台に対する上下方向の変位及び前記右側接触板の前記右側シュー基台に対する上下方向の変位のうち少なくともいずれか一方を検知する接触板変位検知手段と、前記接触板変位検知手段が前記変位を検知した際に、前記乗りかごが上昇又は下降しているときは前記乗りかごの上昇又は下降を停止する制御手段と、を備えた構成とする。 In the safety device for engaging Rue elevators to the present invention comprises a car which moves up and down the elevator hoistway, and your entrance or provided in the cab, and left the car doors and the right car door for opening and closing the car entrance The left contact plate provided on the door contact side of the left car door, the right contact plate provided on the door contact side of the right car door, the left car door and the right car door are fully closed. In this case, when the string-like object or the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, the left contact plate is displaced in the vertical direction with respect to the left car door, and A contact plate displacement detecting means for detecting at least one of vertical displacements of the right contact plate with respect to the right car door; and when the contact plate displacement detecting means detects the displacement, the car is Or while descending and a control means for stopping the rise or fall of the car, both of the left region contacting plate and the right contact plate, a string-like object or cloth-like object between the two When pulled in a sandwiched state, the left and right side doors are displaced vertically while maintaining a state in which a string-like object or cloth-like object is sandwiched between the two. The configuration is as follows.
In addition, it is provided in the elevator car in the elevator hoistway, in the car doorway provided in the car, in the left and right car doors that open and close the car doorway, and in the door contact side of the left car door A left-side contact plate, a right-side contact plate provided on the side of the right-side car door, and the left-side car door and the right-side car door are fully closed, a string-like object or a cloth-like object is When pulled between the left contact plate and the right contact plate, the left contact plate is displaced in the vertical direction with respect to the left car door, and the right contact plate is moved in the vertical direction with respect to the right car door. A contact plate displacement detecting means for detecting at least one of the displacements of the motor and a lift of the car when the car is moving up or down when the contact plate displacement detecting means detects the displacement. Control means for stopping the lowering, and the left contact plate includes a left extending portion provided on a side opposite to the left contact plate and an upper side for urging the left contact plate upward. A tension spring, a lower tension spring that urges the left contact plate downward, a long hole that is drilled in the left contact plate and has a long diameter in the vertical direction, and is located in the long hole. A pin that is fixed to the left car door and that guides the sliding direction of the left contact plate relative to the left car door in the vertical direction, and the right contact plate is provided on the opposite side of the right contact plate. A right extending portion, an upper tension spring that biases the right contact plate upward, a lower tension spring that biases the right contact plate downward, and the right contact plate, A long hole having a long diameter in the vertical direction, and is positioned in the long hole and fixed to the right-side car door. A pin that guides the sliding direction of the right contact plate with respect to the right car door in the vertical direction, and the contact plate displacement detecting means is at least one of the left extending portion and the right extending portion. A front U-shaped operating metal mounted on the opposite side of the door, and the left and right side doors corresponding to the side on which the operating metal is mounted are installed at positions facing the operating metal. And a switch having a switch roller.
In addition, the car that moves up and down in the elevator hoistway, the car doorway provided in the car, the left and right car doors that open and close the car doorway, and a pair of upper and lower left links, the left car A left shoe base pivotably attached to the door, a right shoe base pivotally attached to the right cage door by a pair of upper and lower right links, and a door of the left shoe base When the left contact plate provided on the contact side, the right contact plate provided on the door contact side of the right shoe base, the left car door and the right car door are fully closed, Alternatively, when the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, the left contact plate is displaced in the vertical direction with respect to the left shoe base and the right contact plate is Right side A contact plate displacement detecting means for detecting at least one of vertical displacements relative to a base; and when the car is raised or lowered when the contact plate displacement detecting means detects the displacement And a control means for stopping the raising or lowering of the car.

また、この発明に係る、エレベーターの安全装置の改修方法においては、エレベーターの昇降路内を昇降する乗りかごと、前記乗りかごに設けられたかご出入口と、前記かご出入口を開閉する左側かご戸及び右側かご戸と、上下一対の左側リンクにより前記左側かご戸に対して進退自在に枢着された左側シュー基台と、上下一対の右側リンクにより前記右側かご戸に対して進退自在に枢着された右側シュー基台と、を備えた既設のエレベーターの安全装置を改修する方法であって、前記左側シュー基台の戸当り側に設けられた左側接触板と、前記右側シュー基台の戸当り側に設けられた右側接触板と、前記左側かご戸及び前記右側かご戸が全閉している場合において、紐状物体又は布状物体が前記左側接触板と前記右側接触板との間に挟持された状態で引張られたとき、前記左側接触板の前記左側シュー基台に対する上下方向の変位及び前記右側接触板の前記右側シュー基台に対する上下方向の変位のうち少なくともいずれか一方を検知する接触板変位検知手段と、前記接触板変位検知手段が前記変位を検知した際に、前記乗りかごが上昇又は下降しているときは前記乗りかごの上昇又は下降を停止する制御手段と、を追加して設けるものとする。 Further, in the elevator safety device repair method according to the present invention, a car that moves up and down in the elevator hoistway, a car doorway provided in the car, a left car door that opens and closes the car doorway, and A right shoe door, a left shoe base that is pivotably attached to the left cage door by a pair of upper and lower left links, and a pair of upper and lower right links that are pivotally attached to the right cage door. A right shoe base, and a method of repairing an existing elevator safety device comprising: a left contact plate provided on a door contact side of the left shoe base; and a door contact of the right shoe base When the right side contact plate provided on the side and the left side car door and the right side car door are fully closed, a string-like object or a cloth-like object is sandwiched between the left side contact plate and the right side contact plate The A contact plate that detects at least one of a vertical displacement of the left contact plate relative to the left shoe base and a vertical displacement of the right contact plate relative to the right shoe base when pulled in a closed state. Displacement detecting means and control means for stopping the raising or lowering of the car when the car is rising or falling when the contact plate displacement detecting means detects the displacement, and Shall be provided.

この発明に係るエレベーターの安全装置においては、簡潔な構成によって、紐状や布状等の厚みの薄い物体が扉に挟み込まれた状態での乗りかご走行等を検知し、この検知により適切な緊急動作を行うことができるという効果を奏する。
Oite the elevator safety device according to the present invention, by a simple configuration, a small thickness objects such as string-shaped or cloth-like detects a car traveling or the like in the state of being sandwiched door, suitably by the detection It is possible to perform an emergency operation.

実施の形態１．
図１から図４は、この発明の実施の形態１に関するもので、図１は通常時において戸開した状態のかご出入口を示す正面図、図２は通常時においてかご戸が全閉した状態のかご出入口を示す正面図、図３は紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが上昇するときのかご出入口を示す正面図、図４は紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが下降するときのかご出入口を示す正面図である。
図において１はエレベーターの昇降路内を昇降する乗りかごに設けられたかご出入口で、１ａはこのかご出入口の左右方向の幅に対する中心線（出入口中心）である。２及び３は、それぞれ前記かご出入口１を開閉する左側かご戸及び右側かご戸であり、前記左右のかご戸２及び３の上部にはドアハンガー４がそれぞれ設けられている。そして、前記ドアハンガー４にはドアローラ５がそれぞれ軸着されており、このドアローラ５が前記かご出入口１の上方に設けられたドアレール６に案内されて転動することにより、前記左右のかご戸２及び３が開閉する。 Embodiment 1 FIG.
FIGS. 1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a front view showing a car doorway in a state where the door is normally opened, and FIG. 2 is a state where the car door is fully closed in a normal time. FIG. 3 is a front view showing the car doorway, and FIG. 3 is a front view showing the car doorway when the car ascends when the car-like door is fully closed with the car-like object sandwiched between the doors, and FIG. It is a front view which shows a car doorway when a car descend | falls in the state which was pinched | interposed into the door and the car door was fully closed.
In the figure, reference numeral 1 denotes a car doorway provided in a car that moves up and down in an elevator hoistway, and reference numeral 1a denotes a center line (center of the doorway) with respect to the lateral width of the car doorway. Reference numerals 2 and 3 respectively denote a left car door and a right car door that open and close the car doorway 1, and a door hanger 4 is provided above each of the left and right car doors 2 and 3. A door roller 5 is pivotally attached to the door hanger 4, and the door roller 5 is guided and rolled by a door rail 6 provided above the car doorway 1. And 3 open and close.

前記左右のかご戸２及び３の戸当り側にはそれぞれ左側接触板７及び右側接触板８が設けられており、これら左右の接触板７及び８の上下方向中央部の反戸当り側には、それぞれ左側延設部７ａ及び右側延設部８ａが設けられている。また、前記左右の接触板７及び８の戸当り側の上下方向に亘っては、左側波状凹凸部７ｂ及び右側波状凹凸部８ｂが設けられており、これら左右の波状凹凸部７ｂ及び８ｂは、合わさった際に左右で互い違いに組み合うようになっている。そして、前記左右の接触板７及び８の上端寄り、下端寄り並びに前記左右の延設部７ａ及び８ａの反接触板寄りには、上下方向に長径を持つ長孔９がそれぞれ穿設されており、前記左右のかご戸２及び３には、これらの長孔９内に位置するようにしてピン１０がそれぞれ固着されている。
前記左右の延設部７ａ及び８ａの左右方向中央部の上端寄りには上側引掛孔１１ａがそれぞれ穿設されるとともに、同下端寄りには下側引掛孔１１ｂがそれぞれ穿設されている。これらの上側引掛孔１１ａには、上側引張りバネ１２ａの一端がそれぞれ引掛けられるとともに、これら上側引張りバネ１２ａの他端は前記左右のかご戸２及び３に固定された図示しない金具にそれぞれ引掛けられている。また同様にして、前記下側引掛孔１１ｂには、下側引張りバネ１２ｂの一端がそれぞれ引掛けられるとともに、これら下側引張りバネ１２ｂの他端は前記左右のかご戸２及び３に固定された図示しない金具にそれぞれ引掛けられている。
前記左側延設部７ａの反戸当り側の端部には正面視略コ字型の作動金１３が取付されており、前記左側かご戸２の前記作動金１３に対向する位置には、スイッチローラ１４ａを備えたスイッチ１４が取付されている。
なお、この際、前記上側引張りバネ１２ａの張力と、前記左側接触板７（又は前記右側接触板８）にかかる重力及び前記下側引張りバネ１２ｂの張力等の合力とが、釣り合って静止している状態において、前記ピン１０の位置が前記長孔９の上下方向のほぼ中央になるとともに前記スイッチローラ１４ａの位置が前記作動金１３の凹陥部のほぼ中央になるように、前記上側引張りバネ１２ａ及び前記下側引張りバネ１２ｂの張力、前記ピン１０の前記左右のかご戸２及び３に対する固定位置並びに前記スイッチ１４の前記左側かご戸２に対する取付位置が調整されている。
また、前記長孔９の左右方向の寸法（短径寸法）は、前記ピン１０の外径寸法より若干大きい寸法となっており、前記左右の接触板７及び８は、前記ピン１０に案内されながら、前記長孔９の上下方向の寸法（長径寸法）により規定される範囲内において、上下方向に容易に摺動できるようになっている。 A left contact plate 7 and a right contact plate 8 are provided on the door contact sides of the left and right car doors 2 and 3, respectively. The left extending portion 7a and the right extending portion 8a are provided. Further, a left-side wavy uneven portion 7b and a right-side wavy uneven portion 8b are provided in the up-down direction on the door contact side of the left and right contact plates 7 and 8, and the left and right wavy uneven portions 7b and 8b are When they are combined, they are combined with each other on the left and right. Long holes 9 having a long diameter in the vertical direction are formed near the upper and lower ends of the left and right contact plates 7 and 8, and near the opposite contact plates of the left and right extending portions 7a and 8a, respectively. The left and right car doors 2 and 3 are respectively fixed with pins 10 so as to be located in the long holes 9.
An upper hooking hole 11a is formed near the upper ends of the left and right extending portions 7a and 8a, and a lower hooking hole 11b is formed near the lower ends. One end of the upper tension spring 12a is hooked in each of the upper hooking holes 11a, and the other end of the upper tension spring 12a is hooked on a bracket (not shown) fixed to the left and right car doors 2 and 3, respectively. It has been. Similarly, one end of the lower tension spring 12b is hooked in the lower hooking hole 11b, and the other end of the lower tension spring 12b is fixed to the left and right car doors 2 and 3. It is respectively hooked on a metal fitting not shown.
A substantially U-shaped operating metal 13 in front view is attached to the end of the left extending portion 7a on the side opposite to the door, and a switch facing the operating metal 13 of the left car door 2 is connected to a switch. A switch 14 having a roller 14a is attached.
At this time, the tension of the upper tension spring 12a and the resultant force such as the gravity applied to the left contact plate 7 (or the right contact plate 8) and the tension of the lower tension spring 12b are balanced and stationary. The upper tension spring 12a so that the position of the pin 10 is approximately the center of the elongated hole 9 in the vertical direction and the position of the switch roller 14a is approximately the center of the recessed portion of the operating metal 13. The tension of the lower tension spring 12b, the fixing position of the pin 10 with respect to the left and right car doors 2 and 3, and the mounting position of the switch 14 with respect to the left car door 2 are adjusted.
The left and right dimension (short diameter dimension) of the long hole 9 is slightly larger than the outer diameter dimension of the pin 10, and the left and right contact plates 7 and 8 are guided by the pin 10. However, it can be easily slid in the vertical direction within the range defined by the vertical dimension (major axis dimension) of the long hole 9.

図２は通常時においてかご戸が全閉した状態を示すものである。前述したように、かご戸の全閉時において前記左右の波状凹凸部７ｂ及び８ｂは、左右で互い違いに組み合っている。
図３は紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが上昇するときを示すもので、理解を容易にするために乗場戸１５の位置をずらして図示している。
この乗場戸１５は、前記乗りかごが停止する乗降階の乗場出入口（図示せず）に開閉自在に設けられており、前記左右のかご戸２及び３の開閉に同期して開閉する。ここで、紐１６の一側が前記左側接触板７と前記右側接触板８との間に挟持され、かつ、前記紐１６の他側が左右の前記乗場戸１５の間に挟持された状態で前記乗りかごが上昇を開始すると、前記紐１６により前記左右の接触板７及び８の上昇が引き止められるため、前記左右の接触板７及び８は前記上側引張りバネ１２ａの張力に抗して前記左右のかご戸２及び３に対し相対的に下方へと変位する。すると、前記作動金１３が前記スイッチローラ１４ａに当接してこれを押動し、前記スイッチ１４が作動する。そして、前記スイッチ１４の作動によってエレベーターの運転を停止する等の適切な緊急動作が行われる。
なお、前記左右のかご戸２及び３が全閉した際に前記左右の接触板７及び８同士が当接する部分を、合わさった際に左右で互い違いに組み合う形状の前記左右の波状凹凸部７ｂ及び８ｂとしたことで、前記左右の接触板７及び８との間に挟持された前記紐１６が上下方向に滑り難くなり、前記紐１６が前記左右の接触板７及び８との間並びに左右の前記乗場戸１５の間に挟持された状態で前記乗りかごが上昇を開始したにもかかわらず、前記紐１６が前記左右の接触板７及び８に対し上下方向に滑ってしまい、前記スイッチ１４が作動しないという事態が発生しないようになっている。
図４は紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが下降するときを示すもので、図３と同様、理解を容易にするために前記乗場戸１５の位置をずらして図示している。
前記紐１６の一側が前記左側接触板７と前記右側接触板８との間に挟持され、かつ、前記紐１６の他側が左右の前記乗場戸１５の間に挟持された状態で前記乗りかごが下降を開始すると、前記紐１６により前記左右の接触板７及び８の下降が引き止められるため、前記左右の接触板７及び８は前記下側引張りバネ１２ｂの張力に抗して前記左右のかご戸２及び３に対し相対的に上方へと変位する。従って、前述した乗りかごが上昇を開始した場合同様、乗りかごが下降を開始した場合においても、前記作動金１３が前記スイッチローラ１４ａに当接してこれを押動し、前記スイッチ１４が作動することによってエレベーターの運転を停止する等の適切な緊急動作が行われる。 FIG. 2 shows a state in which the car door is fully closed in a normal state. As described above, when the car door is fully closed, the left and right wavy uneven portions 7b and 8b are alternately assembled on the left and right.
FIG. 3 shows the case where the car rises in a state where the string-like object is sandwiched between the doors and the car door is fully closed. For ease of understanding, the position of the landing door 15 is shifted and illustrated. Yes.
The landing door 15 is provided at a landing doorway (not shown) on the boarding / exiting floor where the car stops, and opens and closes in synchronization with the opening and closing of the left and right car doors 2 and 3. Here, the one side of the cord 16 is sandwiched between the left contact plate 7 and the right contact plate 8 and the other side of the cord 16 is sandwiched between the left and right landing doors 15. When the car starts to rise, the left and right contact plates 7 and 8 are prevented from rising by the string 16, so that the left and right contact plates 7 and 8 resist the tension of the upper tension spring 12a. It is displaced downward relative to the doors 2 and 3. Then, the operating metal 13 comes into contact with and pushes the switch roller 14a, and the switch 14 is operated. Then, an appropriate emergency operation such as stopping the operation of the elevator by the operation of the switch 14 is performed.
When the left and right car doors 2 and 3 are fully closed, the left and right wavy uneven portions 7b and the left and right wavy uneven portions 7b and 8b makes it difficult for the string 16 sandwiched between the left and right contact plates 7 and 8 to slide in the vertical direction, so that the string 16 is between the left and right contact plates 7 and 8 and left and right. The string 16 slips up and down with respect to the left and right contact plates 7 and 8 even though the car starts to rise while being sandwiched between the landing doors 15, and the switch 14 is The situation of not working does not occur.
FIG. 4 shows the case where the car descends with the string-like object sandwiched between the doors and the car door fully closed. As in FIG. 3, the position of the landing door 15 is easy to understand. The figure is shifted.
The car is in a state where one side of the cord 16 is sandwiched between the left contact plate 7 and the right contact plate 8 and the other side of the cord 16 is sandwiched between the left and right landing doors 15. When the descent starts, the descent of the left and right contact plates 7 and 8 is prevented by the string 16, so that the left and right contact plates 7 and 8 resist the tension of the lower tension spring 12b. Displaces upward relative to 2 and 3. Therefore, similarly to the case where the car starts to rise, when the car starts to descend, the operating metal 13 comes into contact with and pushes the switch roller 14a, and the switch 14 is operated. Thus, an appropriate emergency operation such as stopping the operation of the elevator is performed.

以上のように構成されたエレベーターの安全装置においては、紐状や布状等の厚みの薄い物体が扉に挟み込まれた状態での乗りかごが走行を開始すると、かご戸に設けられた左右の接触板が上方向又は下方向に摺動してスイッチを作動させることによりエレベーターの運転を停止する等の適切な緊急動作が行われるため、簡潔な構成によって、紐状や布状等の厚みの薄い物体が扉に挟み込まれた状態での乗りかご走行等を検知し、この検知により適切な緊急動作を行うことができる。
なお、紐状の物体が扉に挟まれてかご戸が全閉した状態での緊急動作に関し、乗りかごが上昇及び下降を開始した場合については、エレベーターの運転を停止するといった動作を行うが、乗りかごで停止した状態で扉に挟まれた紐状の物体が引張られることにより、接触板がかご戸に対して上下方向に変位してスイッチが作動した場合には、かご戸を戸開するといった動作を行うようにしてもよい。
また、左右のかご戸が全閉した際に左右の接触板同士が当接する部分を、ここでは合わさった際に左右で互い違いに組み合う波状の凹凸形状の波状凹凸部としたが、前記左右のかご戸が全閉した際に前記左右の接触板同士の間に隙間が出来ず、かつ、前記左右の接触板の間に挟持された紐状や布状等の厚みの薄い物体が上下方向に滑り難くなり、この紐状や布状等の厚みの薄い物体が前記左右の接触板の間並びに左右の乗場戸の間に挟持された状態で乗りかごが上昇を開始したにもかかわらず、この紐状や布状等の厚みの薄い物体が前記左右の接触板に対し上下方向に滑ってしまい、スイッチが作動しないという事態の発生を防止できる形状であればよく、例えば、合わさった際に左右で互い違いに組み合う鋸歯状の凹凸形状の左側鋸歯状凹凸部及び右側鋸歯状凹凸部とすることもできる。
さらには、扉に挟まれた物体への衝撃の緩和や破損の防止等を目的として、左右のかご戸が全閉した際に左右の接触板同士が当接する部分を、例えばゴム等の可撓性のある材料で構成する、又は、当該部分を前記可撓性のある材料で覆うようにしてもよい。 In the elevator safety device configured as described above, when the car in a state where a thin object such as a string or cloth is sandwiched between the doors starts running, the left and right provided on the car door Appropriate emergency actions such as stopping the elevator operation by activating the switch by sliding the contact plate upward or downward, so that the thickness of the string or cloth is reduced by a simple configuration. A car traveling in a state where a thin object is sandwiched between doors is detected, and an appropriate emergency operation can be performed by this detection.
In addition, regarding the emergency operation in a state where the string-like object is sandwiched between the doors and the car door is fully closed, when the car starts to rise and descend, an operation such as stopping the operation of the elevator is performed. When the switch is activated when the contact plate is displaced vertically with respect to the car door by pulling the string-like object sandwiched between the doors while stopped by the car, the car door is opened. Such an operation may be performed.
In addition, the portion where the left and right contact plates come into contact with each other when the left and right car doors are fully closed is the wavy uneven portion that is alternately assembled on the left and right when they are combined. When the door is fully closed, there is no gap between the left and right contact plates, and a thin object such as a string or cloth sandwiched between the left and right contact plates is difficult to slide in the vertical direction. In spite of the fact that the thin car such as string or cloth is sandwiched between the left and right contact plates and between the left and right landing doors, the string or cloth Any shape that can prevent the occurrence of a situation in which a thin object such as an object slides in the vertical direction with respect to the left and right contact plates and the switch does not operate. Left and right serrated concave It may be a part, and the right side serrated irregular portion.
Furthermore, for the purpose of alleviating the impact on the object sandwiched between the doors and preventing damage, the part where the left and right contact plates abut when the left and right car doors are fully closed is made of a flexible material such as rubber. It may be made of a material having a property, or the portion may be covered with the flexible material.

実施の形態２．
図５は、この発明の実施の形態２に関するもので、通常時においてかご戸が全閉した状態のかご出入口を示す正面図である。この図５において、図１から図４と同符号は同一部分又は相当部分を示しており、説明を省略する。
ここで説明する実施の形態２は、通常のセーフティシュー（一般的に用いられているセーフティシューを想定しており、その詳細説明は省略する）に、実施の形態１で説明した接触板、引張りバネ及びスイッチ等を設けるようにしたものである。
すなわち、１７は左側セーフティシューの基台で、上下一対の左側リンク１７ａにより前記左側かご戸２に対して進退自在に枢着されている。また、右側シュー基台１８も同様にして、上下一対の右側リンク１８ａにより前記右側かご戸３に対して進退自在に枢着されている。 Embodiment 2. FIG.
FIG. 5 relates to Embodiment 2 of the present invention, and is a front view showing a car doorway in a state where the car door is fully closed in a normal state. In FIG. 5, the same reference numerals as those in FIGS. 1 to 4 denote the same or corresponding parts, and the description thereof is omitted.
In the second embodiment described here, the contact plate and tension described in the first embodiment are added to a normal safety shoe (a safety shoe that is generally used is assumed and detailed description thereof is omitted). A spring, a switch, and the like are provided.
That is, 17 is a base of the left safety shoe, and is pivotally attached to the left car door 2 by a pair of upper and lower left links 17a. Similarly, the right shoe base 18 is pivotably attached to the right car door 3 by a pair of upper and lower right links 18a.

そして、前記左右のシュー基台１７及び１８の戸当り側にはそれぞれ左側接触板７及び右側接触板８が設けられており、これら左右の接触板７及び８の上下方向中央部の反戸当り側には、それぞれ左側延設部７ａ及び右側延設部８ａが設けられている。また、前記左右の接触板７及び８の戸当り側の上下方向に亘っては、左側波状凹凸部７ｂ及び右側波状凹凸部８ｂが設けられており、これら左右の波状凹凸部７ｂ及び８ｂは、合わさった際に左右で互い違いに組み合うようになっている。そして、前記左右の接触板７及び８の上端寄り及び下端寄りには、上下方向に長径を持つ長孔９がそれぞれ穿設されており、前記左右のシュー基台１７及び１８には、これらの長孔９内に位置するようにしてピン１０がそれぞれ固着されている。
前記左右の延設部７ａ及び８ａの反戸当り側端部の上端寄りには上側引掛孔１１ａがそれぞれ穿設されるとともに、同下端寄りには下側引掛孔１１ｂがそれぞれ穿設されている。これらの上側引掛孔１１ａには、上側引張りバネ１２ａの一端がそれぞれ引掛けられるとともに、これら上側引張りバネ１２ａの他端は前記左右のシュー基台１７及び１８に固定された引掛け金具１９にそれぞれ引掛けられている。また同様にして、前記下側引掛孔１１ｂには、下側引張りバネ１２ｂの一端がそれぞれ引掛けられるとともに、これら下側引張りバネ１２ｂの他端は前記左右のシュー基台１７及び１８に固定された引掛け金具１９にそれぞれ引掛けられている。
前記左側延設部７ａの反戸当り側の端部には正面視略コ字型の作動金１３が取付されてるとともに、前記左側シュー基台１７の上下方向中央部の反戸当り側にはシュー基台延設部１７ｂが設けられており、このシュー基台延設部１７ｂの前記作動金１３に対向する位置には、スイッチローラ１４ａを備えたスイッチ１４が取付されている。
なお、この際、実施の形態１と同様、前記上側引張りバネ１２ａの張力と、前記左側接触板７（又は前記右側接触板８）にかかる重力及び前記下側引張りバネ１２ｂの張力等の合力とが、釣り合って静止している状態において、前記ピン１０の位置が前記長孔９の上下方向のほぼ中央になるとともに前記スイッチローラ１４ａの位置が前記作動金１３の凹陥部のほぼ中央になるように、前記上側引張りバネ１２ａ及び前記下側引張りバネ１２ｂの張力、前記ピン１０の前記左右のシュー基台１７及び１８に対する固定位置並びに前記スイッチ１４の前記シュー基台延設部１７ｂに対する取付位置が調整されている。
また、前記長孔９の左右方向の寸法（短径寸法）は、前記ピン１０の外径寸法より若干大きい寸法となっており、前記左右の接触板７及び８は、前記ピン１０に案内されながら、前記長孔９の上下方向の寸法（長径寸法）により規定される範囲内において、上下方向に容易に摺動できるようになっている点も実施の形態１同様である。 A left contact plate 7 and a right contact plate 8 are provided on the door contact sides of the left and right shoe bases 17 and 18, respectively. On the side, a left extending portion 7a and a right extending portion 8a are provided. Further, a left-side wavy uneven portion 7b and a right-side wavy uneven portion 8b are provided in the up-down direction on the door contact side of the left and right contact plates 7 and 8, and the left and right wavy uneven portions 7b and 8b are When they are combined, they are combined with each other on the left and right. The left and right contact plates 7 and 8 are respectively provided with elongated holes 9 having a long diameter in the vertical direction near the upper end and the lower end thereof, and the left and right shoe bases 17 and 18 have these holes, respectively. Pins 10 are respectively fixed so as to be located in the long holes 9.
An upper hooking hole 11a is formed near the upper end of the opposite door end of the left and right extending portions 7a and 8a, and a lower hooking hole 11b is formed near the lower end. . One end of the upper tension spring 12a is hooked in the upper hooking hole 11a, and the other end of the upper tension spring 12a is hooked to a hook metal fitting 19 fixed to the left and right shoe bases 17 and 18, respectively. It is hooked. Similarly, one end of the lower tension spring 12b is hooked in the lower hooking hole 11b, and the other end of the lower tension spring 12b is fixed to the left and right shoe bases 17 and 18. The hooks 19 are respectively hooked on the hook metal fittings 19.
A substantially U-shaped operating metal 13 in front view is attached to the end of the left extension 7a on the side opposite to the door, and on the side opposite to the door in the vertical center of the left shoe base 17. A shoe base extending portion 17b is provided, and a switch 14 having a switch roller 14a is attached to a position of the shoe base extending portion 17b facing the operating metal 13.
At this time, as in the first embodiment, the tension of the upper tension spring 12a and the resultant force such as the gravity applied to the left contact plate 7 (or the right contact plate 8) and the tension of the lower tension spring 12b However, in a state of being balanced and stationary, the position of the pin 10 is approximately the center in the vertical direction of the elongated hole 9 and the position of the switch roller 14a is approximately the center of the recessed portion of the operating metal 13. Further, the tension of the upper tension spring 12a and the lower tension spring 12b, the fixing position of the pin 10 with respect to the left and right shoe bases 17 and 18, and the mounting position of the switch 14 with respect to the shoe base extension 17b. It has been adjusted.
The left and right dimension (short diameter dimension) of the long hole 9 is slightly larger than the outer diameter dimension of the pin 10, and the left and right contact plates 7 and 8 are guided by the pin 10. However, it is the same as in the first embodiment in that it can be easily slid in the vertical direction within the range defined by the vertical dimension (major axis dimension) of the long hole 9.

この実施の形態２におけるエレベーターの安全装置は、通常のセーフティシューに、実施の形態１で説明した接触板、引張りバネ及びスイッチ等を設けるようにしたものであるため、一般的に用いられている通常のセーフティシューが備える機能を備えている。
すなわち、前記左右の接触板７及び８は通常のセーフティシューにおける接触棒の機能を兼任しており、前記左右のかご戸２及び３が戸閉する際には、これら左右の接触板７及び８は前記左右のかご戸２及び３の戸当り側端面から所定量突出した状態で戸閉し、全閉する手前から全閉するまでの間に、前記左右の接触板７及び８が、前記左右のかご戸２及び３のそれぞれの端面まで後退するように動作する。そして、前記左右の接触板７及び８が、異物等に接触して前記左右のかご戸２及び３の戸当り側端面より内方に押動されると、前記左右のかご戸２及び３の戸閉が停止する、又は反転して戸開動作に移る。 The elevator safety device according to the second embodiment is generally used because a contact plate, a tension spring, a switch, and the like described in the first embodiment are provided on a normal safety shoe. It has the functions that ordinary safety shoes have.
That is, the left and right contact plates 7 and 8 also serve as a contact bar in a normal safety shoe, and when the left and right car doors 2 and 3 are closed, these left and right contact plates 7 and 8 are used. Is closed with a predetermined amount protruding from the door-end side end surfaces of the left and right car doors 2 and 3, and the left and right contact plates 7 and 8 are connected to the left and right sides before the door is fully closed. It operates so as to retract to the respective end surfaces of the car doors 2 and 3. Then, when the left and right contact plates 7 and 8 come into contact with a foreign object or the like and are pushed inward from the door contact side end surfaces of the left and right car doors 2 and 3, the left and right car doors 2 and 3 Door closing stops or reverses and moves to door opening operation.

そして、紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが上昇及び下降するときの動作に関しては、前述した実施の形態１と同様である。
すなわち、例えば、紐１６の一側が前記左側接触板７と前記右側接触板８との間に挟持され、かつ、前記紐１６の他側が左右の前記乗場戸１５の間に挟持された状態で前記乗りかごが上昇を開始すると、前記紐１６により前記左右の接触板７及び８の上昇が引き止められるため、前記左右の接触板７及び８は前記上側引張りバネ１２ａの張力に抗して前記左右のシュー基台１７及び１８に対し相対的に下方へと変位する。すると、前記作動金１３が前記スイッチローラ１４ａに当接してこれを押動し、前記スイッチ１４が作動する。そして、前記スイッチ１４の作動によってエレベーターの運転を停止する等の適切な緊急動作が行われる。
なお、前記左右のかご戸２及び３が全閉した際に前記左右の接触板７及び８同士が当接する部分を、合わさった際に左右で互い違いに組み合う形状の前記左右の波状凹凸部７ｂ及び８ｂとしたことで、前記左右の接触板７及び８との間に挟持された前記紐１６が上下方向に滑り難くなり、前記紐１６が前記左右の接触板７及び８との間並びに左右の前記乗場戸１５の間に挟持された状態で前記乗りかごが上昇を開始したにもかかわらず、前記紐１６が前記左右の接触板７及び８に対し上下方向に滑ってしまい、前記スイッチ１４が作動しないという事態が発生しないようになっている点も実施の形態１同様である。 The operation when the car goes up and down with the string-like object sandwiched between the doors and the car door fully closed is the same as that of the first embodiment.
That is, for example, in a state where one side of the string 16 is sandwiched between the left contact plate 7 and the right contact plate 8 and the other side of the string 16 is sandwiched between the left and right landing doors 15. When the car begins to rise, the left and right contact plates 7 and 8 are prevented from rising by the string 16, so that the left and right contact plates 7 and 8 resist the tension of the upper tension spring 12a. It is displaced downward relative to the shoe bases 17 and 18. Then, the operating metal 13 comes into contact with and pushes the switch roller 14a, and the switch 14 is operated. Then, an appropriate emergency operation such as stopping the operation of the elevator by the operation of the switch 14 is performed.
When the left and right car doors 2 and 3 are fully closed, the left and right wavy uneven portions 7b and the left and right wavy uneven portions 7b and 8b makes it difficult for the string 16 sandwiched between the left and right contact plates 7 and 8 to slide in the vertical direction, so that the string 16 is between the left and right contact plates 7 and 8 and left and right. The string 16 slips up and down with respect to the left and right contact plates 7 and 8 even though the car starts to rise while being sandwiched between the landing doors 15, and the switch 14 is The point that the situation of not operating does not occur is the same as in the first embodiment.

以上のように構成されたエレベーターの安全装置においては、一般的に用いられている通常のセーフティシューが有する効果を奏することができるとともに、実施の形態１と同様の効果をも奏することができる。
なお、紐状の物体が扉に挟まれてかご戸が全閉した状態での緊急動作に関し、乗りかごが上昇及び下降を開始した場合については、エレベーターの運転を停止するといった動作を行うが、乗りかごで停止した状態で扉に挟まれた紐状の物体が引張られることにより、接触板がかご戸に対して上下方向に変位してスイッチが作動した場合には、かご戸を戸開するといった動作を行うようにしてもよい点は実施の形態１と同様である。
また、左右のかご戸が全閉した際に左右の接触板同士が当接する部分を、合わさった際に左右で互い違いに組み合う波状の凹凸形状の波状凹凸部とする代わりに、前記左右のかご戸が全閉した際に前記左右の接触板同士の間に隙間が出来ず、かつ、前記左右の接触板の間に挟持された紐状や布状等の厚みの薄い物体が上下方向に滑り難くなり、この紐状や布状等の厚みの薄い物体が前記左右の接触板の間並びに左右の乗場戸の間に挟持された状態で乗りかごが上昇を開始したにもかかわらず、この紐状や布状等の厚みの薄い物体が前記左右の接触板に対し上下方向に滑ってしまい、スイッチが作動しないという事態の発生を防止できる形状、例えば、合わさった際に左右で互い違いに組み合う鋸歯状の凹凸形状の左側鋸歯状凹凸部及び右側鋸歯状凹凸部とすることもできる点や、扉に挟まれた物体への衝撃の緩和や破損の防止等を目的として、左右のかご戸が全閉した際に左右の接触板同士が当接する部分を、例えばゴム等の可撓性のある材料で構成する、又は、当該部分を前記可撓性のある材料で覆うようにしてもよい点に関しても、実施の形態１と同様である。 In the elevator safety apparatus configured as described above, the effects of a commonly used ordinary safety shoe can be achieved, and the same effects as those of the first embodiment can also be achieved.
In addition, regarding the emergency operation in a state where the string-like object is sandwiched between the doors and the car door is fully closed, when the car starts to rise and descend, an operation such as stopping the operation of the elevator is performed. When the switch is activated when the contact plate is displaced vertically with respect to the car door by pulling the string-like object sandwiched between the doors while stopped by the car, the car door is opened. The point that the above operation may be performed is the same as in the first embodiment.
In addition, the left and right car doors are replaced with the wavy uneven portions of the wavy uneven shape that are alternately combined on the left and right when the left and right contact doors are in contact with each other when the left and right car doors are fully closed. When fully closed, there is no gap between the left and right contact plates, and a thin object such as a string or cloth sandwiched between the left and right contact plates is difficult to slide in the vertical direction, Even though the car starts to rise in the state where the thin object such as the string or cloth is sandwiched between the left and right contact plates and between the left and right landing doors, the string or cloth A shape that can prevent the occurrence of a situation in which an object with a small thickness slides up and down with respect to the left and right contact plates and the switch does not operate, for example, a saw-toothed uneven shape that is alternately assembled on the left and right when combined. Left-side sawtooth irregularities and right-side saw The part where the left and right contact plates come into contact with each other when the left and right car doors are fully closed for the purpose of mitigating impacts and preventing damage to objects sandwiched between doors. The same as in the first embodiment, for example, may be configured with a flexible material such as rubber, or the portion may be covered with the flexible material.

実施の形態３．
前述した実施の形態２は本発明を適用したエレベーターの安全装置を新たに設置する際を主に想定したものだが、以下のようにして、既設のエレベーターの安全装置に本発明の効果を付与するよう改修を施すことも可能である。 Embodiment 3 FIG.
The above-described second embodiment is mainly assumed when an elevator safety device to which the present invention is applied is newly installed. The effect of the present invention is imparted to an existing elevator safety device as follows. It is also possible to make such modifications.

左右のシュー基台の戸当り側に接触板をそれぞれ設け、これら左右の接触板の上下方向中央部の反戸当り側に延設部をそれぞれ設ける。そして、前記左右の接触板の戸当り側の上下方向に亘って、合わさった際に左右で互い違いに組み合うようになっている波状凹凸部をそれぞれ設ける。また、前記左右の接触板の上端寄り及び下端寄りに、上下方向に長径を持つ長孔をそれぞれ穿設し、前記左右のシュー基台に、前記長孔内に位置するようにして、ピンをそれぞれ固着する。
そして、前記左右の延設部の反戸当り側端部の上端寄りに上側引掛孔をそれぞれ穿設するとともに、同下端寄りに下側引掛孔をそれぞれ穿設する。これらの上側引掛孔に、上側引張りバネの一端をそれぞれ引掛けるとともに、これら上側引張りバネの他端を前記左右のシュー基台に固定された引掛け金具にそれぞれ引掛ける。また同様にして、前記下側引掛孔に、下側引張りバネの一端をそれぞれ引掛けるとともに、これら下側引張りバネの他端を前記左右のシュー基台に固定された引掛け金具にそれぞれ引掛ける。
また、前記左側延設部の反戸当り側の端部に正面視略コ字型の作動金を取付するとともに、前記左側シュー基台の上下方向中央部の反戸当り側にシュー基台延設部を設け、このシュー基台延設部の前記作動金に対向する位置に、スイッチローラを備えたスイッチを取付する。
そして、前記上側引張りバネの張力と、前記左側接触板（又は前記右側接触板）にかかる重力及び前記下側引張りバネの張力等の合力とが、釣り合って静止している状態において、前記ピンの位置が前記長孔の上下方向のほぼ中央になるとともに前記スイッチローラの位置が前記作動金の凹陥部のほぼ中央になるように、前記上側引張りバネ及び前記下側引張りバネの張力、前記ピンの前記左右のシュー基台に対する固定位置並びに前記スイッチの前記シュー基台延設部に対する取付位置を調整する。
なお、前記長孔の左右方向の寸法（短径寸法）は、前記ピンの外径寸法より若干大きい寸法とし、前記左右の接触板は、前記ピンに案内されながら、前記長孔の上下方向の寸法（長径寸法）により規定される範囲内において、上下方向に容易に摺動できるようにする。 Contact plates are respectively provided on the door contact sides of the left and right shoe bases, and extending portions are provided on the opposite door contact sides of the center portions in the vertical direction of the left and right contact plates. And the wavy uneven | corrugated | grooved part which is assembled | attached alternately on right and left when it puts together over the up-down direction of the door contact side of the said left and right contact board is provided, respectively. Further, long holes having a long diameter in the vertical direction are formed near the upper end and the lower end of the left and right contact plates, respectively, and the pins are placed on the left and right shoe bases so as to be located in the long holes. Each sticks.
Then, an upper hooking hole is drilled near the upper end of the opposite door end of the left and right extending portions, and a lower hooking hole is drilled near the lower end. One end of each upper tension spring is hooked on each upper hook hole, and the other end of each upper tension spring is hooked on a hook fitting fixed to each of the left and right shoe bases. Similarly, one end of the lower tension spring is hooked to the lower hooking hole, and the other end of the lower tension spring is hooked to a hook metal fitting fixed to the left and right shoe bases. .
In addition, a substantially U-shaped operating metal in front view is attached to the end portion of the left extension portion on the side opposite to the door, and the shoe base extends to the side opposite to the door in the vertical center of the left shoe base. A switch provided with a switch roller is attached to the shoe base extending portion at a position facing the working metal.
In the state where the tension of the upper tension spring and the resultant force such as the gravity applied to the left contact plate (or the right contact plate) and the tension of the lower tension spring are balanced and stationary, The tension of the upper tension spring and the lower tension spring, so that the position of the switch roller is substantially the center of the concave portion of the working metal and the position of the switch roller is substantially the center of the elongated hole. The fixing position with respect to the left and right shoe bases and the mounting position of the switch with respect to the shoe base extending portion are adjusted.
The left and right dimension (short diameter dimension) of the long hole is slightly larger than the outer diameter dimension of the pin, and the left and right contact plates are guided by the pin while the vertical direction of the long hole is vertical. It should be possible to easily slide in the vertical direction within the range defined by the dimension (major axis dimension).

以上のようなエレベーターの安全装置の改修方法により、既設のエレベーターの安全装置に実施の形態２と同様の効果を付与するよう改修を施すことが可能できる。 By the method for repairing an elevator safety device as described above, the existing elevator safety device can be repaired so as to give the same effect as in the second embodiment.

この発明の実施の形態１に関し通常時において戸開した状態のかご出入口を示す正面図である。It is a front view which shows the car doorway in the state which opened the door at normal time regarding Embodiment 1 of this invention. この発明の実施の形態１に関し通常時においてかご戸が全閉した状態のかご出入口を示す正面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a car doorway in a state where a car door is fully closed in a normal state with respect to Embodiment 1 of the present invention. この発明の実施の形態１に関し紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが上昇するときのかご出入口を示す正面図である。It is a front view which shows a car doorway when a car goes up in the state which a string-like object was pinched | interposed into the door regarding Embodiment 1 of this invention, and the car door was fully closed. この発明の実施の形態１に関し紐状の物体が扉に挟まれてかご戸が全閉した状態で乗りかごが下降するときのかご出入口を示す正面図である。It is a front view which shows a car doorway when a car descends in the state which a string-like object was pinched | interposed into the door regarding Embodiment 1 of this invention, and the car door was fully closed. この発明の実施の形態２に関し通常時においてかご戸が全閉した状態のかご出入口を示す正面図である。It is a front view which shows the cage | basket entrance / exit of the state in which the car door was fully closed in normal time regarding Embodiment 2 of this invention.

Explanation of symbols

１かご出入口
１ａ出入口中心
２左側かご戸
３右側かご戸
４ドアハンガー
５ドアローラ
６ドアレール
７左側接触板
７ａ左側延設部
７ｂ左側波状凹凸部
８右側接触板
８ａ右側延設部
８ｂ右側波状凹凸部
９長孔
１０ピン
１１ａ上側引掛孔
１１ｂ下側引掛孔
１２ａ上側引張りバネ
１２ｂ下側引張りバネ
１３作動金
１４スイッチ
１４ａスイッチローラ
１５乗場戸
１６紐
１７左側シュー基台
１７ａ左側リンク
１７ｂシュー基台延設部
１８右側シュー基台
１８ａ右側リンク
１９引掛け金具 DESCRIPTION OF SYMBOLS 1 Car entrance / exit 1a Entrance / exit center 2 Left side car door 3 Right side car door 4 Door hanger 5 Door roller 6 Door rail 7 Left side contact plate 7a Left side extended part 7b Left side wavy uneven part 8 Right contact plate 8a Right side extended part 8b Right side wavy uneven part 9 Long hole 10 Pin 11a Upper hook hole 11b Lower hook hole 12a Upper tension spring 12b Lower tension spring 13 Actuating metal 14 Switch 14a Switch roller 15 Platform door 16 String 17 Left shoe base 17a Left link 17b Shoe base extension 18 Right shoe base 18a Right link 19 Hook

Claims

A car that goes up and down in the elevator hoistway,
A car doorway provided in the car;
A left car door and a right car door that open and close the car doorway;
A left-side contact plate provided on the door-to-door side of the left-side car door;
A right contact plate provided on the door-to-door side of the right car door;
When the left car door and the right car door are fully closed, when the string-like object or the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, A contact plate displacement detecting means for detecting at least one of a vertical displacement of the left contact plate relative to the left cage door and a vertical displacement of the right contact plate relative to the right cage door;
Control means for stopping the raising or lowering of the car when the car is moving up or down when the contact plate displacement detecting means detects the displacement ;
When both the left contact plate and the right contact plate are pulled in a state where a string-like object or a cloth-like object is sandwiched between the both, the string-like object or the cloth-like object is held between the both. An elevator safety device, wherein the elevator safety device is provided to be displaced in a vertical direction with respect to the left car door and the right car door while maintaining a state .

A car that goes up and down in the elevator hoistway,
A car doorway provided in the car;
A left car door and a right car door that open and close the car doorway;
A left-side contact plate provided on the door-to-door side of the left-side car door;
A right contact plate provided on the door-to-door side of the right car door;
When the left car door and the right car door are fully closed, when the string-like object or the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, A contact plate displacement detecting means for detecting at least one of a vertical displacement of the left contact plate relative to the left cage door and a vertical displacement of the right contact plate relative to the right cage door;
Control means for stopping the raising or lowering of the car when the car is moving up or down when the contact plate displacement detecting means detects the displacement;
The left contact plate is
A left-side extending portion provided on the counter-door side of the left-side contact plate;
An upper tension spring for urging the left contact plate upward;
A lower tension spring that biases the left contact plate downward;
A long hole drilled in the left contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the left car door, and guides the sliding direction of the left contact plate relative to the left car door in the vertical direction;
The right contact plate is
A right-side extending portion provided on the opposite door side of the right-side contact plate;
An upper tension spring for urging the right contact plate upward;
A lower tension spring that biases the right contact plate downward;
A long hole drilled in the right contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the right car door, and guides the sliding direction of the right contact plate relative to the right car door in the vertical direction;
The contact plate displacement detection means includes
A front-view substantially U-shaped operating metal attached to at least one of the left-side extending part and the right-side extending part on the opposite door side, and
Wherein the left car door and the right car door operating money corresponding to the mounting by side, are mounted in a position opposite to the actuation gold, features and to Rue by comprising a switch having a switch roller The safety device of the elevator.

A car that goes up and down in the elevator hoistway,
A car doorway provided in the car;
A left car door and a right car door that open and close the car doorway;
A left shoe base pivotally attached to the left car door by a pair of upper and lower left links;
A right shoe base pivotally attached to the right car door by a pair of upper and lower right links;
A left contact plate provided on a door-to-door side of the left shoe base;
A right contact plate provided on a door-to-door side of the right shoe base;
When the left car door and the right car door are fully closed, when the string-like object or the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, Contact plate displacement detecting means for detecting at least one of a vertical displacement of the left contact plate relative to the left shoe base and a vertical displacement of the right contact plate relative to the right shoe base;
And a control means for stopping the raising or lowering of the car when the car is rising or lowering when the contact plate displacement detecting means detects the displacement. Safety equipment.

The left contact plate is
A left-side extending portion provided on the counter-door side of the left-side contact plate;
An upper tension spring for urging the left contact plate upward;
A lower tension spring that biases the left contact plate downward;
A long hole drilled in the left contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the left shoe base, and guides the sliding direction of the left contact plate relative to the left shoe base in a vertical direction,
The right contact plate is
A right-side extending portion provided on the opposite door side of the right-side contact plate;
An upper tension spring for urging the right contact plate upward;
A lower tension spring that biases the right contact plate downward;
A long hole drilled in the right contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the right shoe base, and guides the sliding direction of the right contact plate relative to the right shoe base in a vertical direction,
The contact plate displacement detection means includes
A front-view substantially U-shaped operating metal attached to at least one of the left-side extending part and the right-side extending part on the opposite door side, and
A shoe base extending portion provided on the side of the left shoe base corresponding to the side on which the operating metal is mounted and the right shoe base;
The elevator safety device according to claim 3, further comprising: a switch having a switch roller attached to the shoe base extending portion at a position facing the operating metal.

The left-side contact plate includes a left-side concavo-convex portion provided across the vertical direction of the door-contact side of the left-side contact plate
The right contact plate includes a right concavo-convex portion provided across the vertical direction of the door contact side of the right contact plate,
The elevator safety device according to any one of claims 1 to 4, wherein the left and right uneven portions and the right uneven portion have uneven shapes that are alternately combined on the left and right when they are combined.

The control means opens the left car door and the right car door when the car is stopped when the contact plate displacement detecting means detects the displacement. The elevator safety device according to claim 5.

A car that goes up and down in the elevator hoistway,
A car doorway provided in the car;
A left car door and a right car door that open and close the car doorway;
A left shoe base pivotally attached to the left car door by a pair of upper and lower left links;
A right shoe base pivotally attached to the right car door by a pair of upper and lower right links, and a method for repairing an existing elevator safety device comprising:
A left contact plate provided on a door-to-door side of the left shoe base;
A right contact plate provided on a door-to-door side of the right shoe base;
When the left car door and the right car door are fully closed, when the string-like object or the cloth-like object is pulled while being sandwiched between the left contact plate and the right contact plate, Contact plate displacement detecting means for detecting at least one of a vertical displacement of the left contact plate relative to the left shoe base and a vertical displacement of the right contact plate relative to the right shoe base;
When the contact plate displacement detecting means detects the displacement, a control means for stopping the raising or lowering of the car when the car is rising or lowering is additionally provided. How to repair the elevator safety device.

The left contact plate provided additionally is
A left-side extending portion provided on the counter-door side of the left-side contact plate;
An upper tension spring for urging the left contact plate upward;
A lower tension spring that biases the left contact plate downward;
A long hole drilled in the left contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the left shoe base, and guides the sliding direction of the left contact plate relative to the left shoe base in a vertical direction,
The right contact plate provided additionally is
A right-side extending portion provided on the opposite door side of the right-side contact plate;
An upper tension spring for urging the right contact plate upward;
A lower tension spring that biases the right contact plate downward;
A long hole drilled in the right contact plate and having a long diameter in the vertical direction;
A pin that is positioned in the elongated hole and is fixed to the right shoe base, and guides the sliding direction of the right contact plate relative to the right shoe base in a vertical direction,
The contact plate displacement detecting means additionally provided is:
A front-view substantially U-shaped operating metal attached to at least one of the left-side extending part and the right-side extending part on the opposite door side, and
A shoe base extending portion provided on the side of the left shoe base corresponding to the side on which the operating metal is mounted and the right shoe base;
The elevator safety device refurbishing method according to claim 7, further comprising: a switch having a switch roller attached to a position of the shoe base extending portion facing the operating metal.

The left contact plate provided additionally includes a left uneven portion provided across the vertical direction of the door contact side of the left contact plate,
The right contact plate provided additionally includes a right concavo-convex portion provided across the vertical direction of the door contact side of the right contact plate,
9. The method of repairing an elevator safety device according to claim 7, wherein the left uneven portion and the right uneven portion are uneven shapes that are alternately combined on the left and right when they are combined.

The additionally provided control means opens the left car door and the right car door when the car is stopped when the contact plate displacement detection means detects the displacement. A method for repairing an elevator safety device according to any one of claims 7 to 9.