JP2009179435A - Engaging device for door of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engaging device for a door of an elevator not breaking a car side engaging member even when a landing side engaging member collides with the car side engaging member. <P>SOLUTION: This engaging device for a door of an elevator has car doors 3a, 3b for opening/closing an entrance/exit 1 of an elevator car, a car side engaging member 11 mounted to the car door, a landing door opened/closed in connection with the car door, and a landing side engaging member mounted to the landing door. The car side engaging member 11 can be displaced in a door opening/closing direction. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an engagement device for an elevator door that prevents damage even when it collides with a landing-side engagement member during traveling of the elevator.

2. Description of the Related Art Conventionally, as a means for preventing damage even when a collision with a landing-side engaging member occurs during elevator travel, there is a car-side engaging member guide body provided above and below the landing-side engaging member (for example, Patent Document 1). reference).
Japanese Patent Publication No.58-10354

  In the prior art, the car-side engagement member guides are installed above and below the landing-side engagement member, and the car rolls during an earthquake, and the car-side engagement member engages with the landing-side engagement. Even when moving up and down along a path that collides with the member, the path of the car-side engaging member is changed by the guide body so as to avoid a collision with the landing-side engaging member. However, when the path is changed by the guide body, a large force is applied to the car-side engaging member so as to change the elevator path of the car, and the car-side engaging member may be damaged. There was sex.

  An object of the present invention is to provide an engagement device for an elevator door that does not damage the car-side engagement member even when the landing-side engagement member and the car-side engagement member collide.

  In order to achieve the above object, according to claim 1 of the present invention, a car door that opens and closes an entrance / exit of an elevator car, a car-side engaging member attached to the car door side, and a car door that opens and closes in conjunction with the car door. An elevator door engagement device having a landing door and a landing-side engagement member attached to the landing door is characterized in that the car-side engagement member can be displaced in a door opening / closing direction.

  With this configuration, even if the landing-side engaging member attached to the landing door collides with the car-side engaging member, the car-side engaging member is displaced in the door opening / closing direction, so that the car-side engaging member is not damaged. Can be prevented.

  According to a second aspect of the present invention, in the first aspect, the car-side engaging member includes an engaging element that engages with the landing-side engaging member and a base member that supports the engaging element. Is mounted on a lever that is rotatably fixed to the same plane as the car door and supported by an elastic member that can extend and retract the other end in the elevator ascending / descending direction. And the said engaging element was equipped with the hollow with a recessed part in an elevator raising / lowering direction so that it might become the same plane as the said car door, and the said base member and the said engaging element were fixed because the said roller fell in the said hollow It is characterized by.

  With this configuration, when a cage-side engagement member fixed by a roller provided on the base member of the engagement element falling in a depression provided on the engagement element is used and a certain force is applied to the engagement element When the roller comes out of the recess, the engagement element is displaced in the door opening / closing direction to release the force.

  According to a third aspect of the present invention, in the first aspect, the car-side engaging member includes an engaging element that engages with the landing-side engaging member and a base member that supports the engaging element. A roller that can roll in the same plane as the car door is attached to a support member supported by a telescopic member that can be expanded and contracted in the elevator up-and-down direction, and the engagement element has a recess having a recess in the elevator up-and-down direction. Is provided so as to be flush with the car door, and the roller is dropped into the recess to fix the base member and the engagement element.

  According to this configuration, as in the second aspect, the cage-side engaging member is fixed by the roller provided on the base member of the engaging element falling into the recess provided on the engaging element, and a constant force is applied to the engaging element. When added, the roller comes out of the recess, and the engaging element is displaced in the door opening / closing direction to release the force.

  According to a fourth aspect of the present invention, in the first aspect, the car-side engagement member includes an engagement element that engages with the landing-side engagement member and a base member that supports the engagement element. A roller that can roll in the same plane as the car door supported by a telescopic member that can be expanded and contracted in the elevator ascending / descending direction is attached, and the car door has a recess having a recess in the elevator ascending / descending direction. The base member and the engagement element are fixed by the roller falling into the recess.

  According to this configuration, as in the second aspect, the cage-side engaging member is fixed by the roller provided on the base member of the engaging element falling into the recess provided on the engaging element, and a constant force is applied to the engaging element. When added, the roller comes out of the recess, and the engaging element is displaced in the door opening / closing direction to release the force.

  According to Claim 5 of the present invention, in Claims 2 to 4, a slope is provided around the recess so as to drop toward the recess, and the roller automatically moves into the recess even when the engagement element is displaced in the door opening / closing direction. It is characterized by having returned to.

  With this configuration, even when the engagement element is displaced in the door opening / closing direction, the roller can automatically return to the recess.

  According to Claim 6 of the present invention, in any one of Claims 2 to 4, the roller is automatically returned to the recess by the force of a spring even when the engagement element is displaced in the door opening / closing direction. .

  With this configuration, even when the engagement element is displaced in the door opening / closing direction, the roller can automatically return to the recess.

  According to a seventh aspect of the present invention, the guide according to the first aspect is characterized in that guides are provided on the upper and lower ends of the engagement element so as to be displaced in the same plane as the car door when displacing in the door opening / closing direction. .

  With this configuration, the engagement element is easily displaced in the door opening / closing direction.

  According to the present invention, even when the landing-side engaging member and the car-side engaging member collide during elevator ascending and descending due to the shaking of the elevator, it is possible to prevent the engaging member from being damaged and due to the failure of the engaging member at the time of the earthquake. Passenger confinement accidents can be reduced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall front view of a landing portion provided with a landing-side engaging member that is an object of the present invention, and FIG. 2 is an entire front view of a car portion including a car-side engaging member that is an object of the present invention. FIG. 4 is a plan view for explaining the relationship between the landing side engagement member and the car side engagement member, FIG. 4 is a front view of the car side engagement member in the first embodiment of the present invention, and FIG. FIG. 6 is a top assembly view of the car-side engagement member of FIG. 4, FIG. 7 is a partial detail view of the car-side engagement member of FIG. 4, and FIG. 8 is the car side of FIG. FIG. 9 is a front view of a car-side engagement member according to another embodiment of the present invention, FIG. 10 is a front view of a car-side engagement member according to another embodiment of the present invention, and FIG. Is a front view of a car side engaging member in another embodiment of the present invention, FIG. 12 is a front view of a car side engaging member in another embodiment of the present invention, and FIG. Furthermore, FIG. 13 is a front view of a car-side engaging member in another embodiment of the present invention, and FIG. 14 is a car-side engaging in another embodiment of the present invention. FIG. 15 is a front view of a car-side engaging member in still another embodiment of the present invention.

  1-3, 1 is an entrance / exit, and landing doors 2a, 2b and car doors 3a, 3b are provided at the entrance / exit. The upper ends of the landing doors 2a and 2b and the car doors 3a and 3b are suspended from the door rails 6 and 7 via the door hangers 4a, 4b, 5a and 5b, and the lower ends of the landing doors 2a and 2b and the car doors 3a and 3b are , Is guided to the thresholds 8 and 9. Reference numeral 10 denotes a landing-side engaging member provided on the landing door 2a, which is fixed to the door hanger 4a. Reference numeral 11 denotes a car-side engaging member provided on the car side, which is provided on the door hanger 5a. When the car (not shown) reaches the landing, as shown in FIG. 3, the landing-side engaging member 10 and the car-side engaging member 11 are engaged. In this state, the car is opened and closed by the car door opening / closing device ( (Not shown), the landing side engaging member 10 and the car side engaging member 11 are engaged, and the car doors 3a and 3b and the landing doors 2a and 2b are opened and closed. ing.

  In the present invention, the configuration of the car-side engaging member 11 is devised. This detailed configuration will be described with reference to FIGS.

  4 to 8, the car-side engaging member 11 is provided in the recesses 13 a and 13 b provided in the engaging element 20, the rollers 14 a and 14 b provided in the base member 30, and the engaging element 20 and the base member 30. The guide devices 15a and 15b are assembled so as to be displaceable in the door opening / closing direction. The rollers 14a and 14b are attached to levers 16a and 16b, one end of which is freely rotatable and fixed to the base member 30, and the other ends of the levers 16a and 16b are supported by elastic members 17a and 17b. The telescopic members 17a and 17b are adjusted so as to press the rollers 14a and 14b against the recesses 13a and 13b. When the rollers 14a and 14b get over the inclination of the recesses 13a and 13b, the engagement elements 20 can be displaced in the door opening and closing direction. Further, there are stoppers 18a, 18b, 18c, 18d for limiting the displacement amount of the engaging element 20. In addition, slopes 19a, 19b, 19c and 19d are provided between the recesses 13a and 13b and the stoppers 18a, 18b, 18c and 18d so that the engagement element 1 automatically returns to its original position after being displaced. ing.

  At the time of assembly, as shown in FIGS. 5 and 6, rollers 14a and 14b, a guide device 15b, levers 16a and 16b, and elastic members 17a and 17b are incorporated in the base member 30, and the engaging element 20 is placed therein. After fitting and attaching the guide device 15a, the telescopic members 17a and 17b may be adjusted. Alternatively, the guide device may be attached last by fitting the engaging member 20 into a place where the elastic members 17a and 17b have been adjusted in advance.

  As shown in FIG. 7, the force necessary for the engagement element 20 to be displaceable in the door opening / closing direction is the angle θ of the depressions 13a and 13b, and the force that the expansion members 17a and 17b act on the levers 16a and 16b. The size P and the distance L1 from the point of application of force to the levers 16a and 16b of the telescopic members 17a and 17b to the rotation support point of the levers 16a and 16b, and the rotation support point of the levers 16a and 16b from the rollers 14a and 14b It can be adjusted by the ratio L (= L1 / L2) of the distance L2 up to. That is, the larger the force ratio P and the distance ratio L and the smaller the angle θ, the greater the force required to displace the engagement element 20 in the door opening / closing direction, and conversely, the force magnitude P and distance. As the ratio L is smaller and the angle θ is larger, the force required for the engagement element 20 to be displaced in the door opening / closing direction becomes smaller. Further, the force necessary for the engagement element 20 to be displaceable in the door opening / closing direction varies depending on the size of the rollers 14a and 14b. By adjusting these, the engagement element 20 is not displaced in the normal door opening and closing in which the car-side engagement member 11 and the landing-side engagement member 10 are engaged, and the car-side engagement member is caused by shaking such as an earthquake during the traveling of the elevator. 11 and the landing-side engagement member 10 collide, the engagement element 20 is displaced in the door opening / closing direction, thereby preventing accidents such as releasing the collision energy and confining it in the elevator before it is damaged. be able to.

  The place where the engagement element 20 is displaced in the door opening / closing direction is shown in FIG. Here, the engagement element 20 is displaced to the right side of FIG. As shown in FIG. 8, when the engagement element 20 is displaced in the door opening / closing direction, the expansion / contraction members 17a and 17b expand and contract, and this state continues until there is no force applied to the engagement element 20. Furthermore, when the force applied to the engagement element 20 is lost, the rollers 19a, 14b roll the inclinations 19a, 19b, 19c, 19d automatically to the original depressions 13a, 13b.

  Moreover, in this invention, it can deform | transform like FIGS. 9-11 by the attachment method of the expansion-contraction members 7a and 7b. That is, in FIG. 4, the elastic members 17 a and 17 b always generate a force in the extending direction, and the force is directed toward the center of the engagement element 20. However, in FIG. 9, the elastic members 17 a and 17 b always generate a force in a contracting direction, but the direction of the force is directed to the outside of the engaging element 20. In FIG. 9, the telescopic members 17 a and 17 b can be arranged inside the levers 16 a and 16 b, so that the size becomes compact compared to FIG. 4.

  In FIG. 10, the elastic members 17a and 17b always generate a force in the extending direction. In FIG. 11, the elastic members 17a and 17b always generate a force in the contracting direction. It differs between outside and inside 16b. However, even if the arrangement of the expansion members 17a and 17b is different, the same effect can be obtained in the four examples of FIGS. 4 and 9 to 11.

  In another embodiment shown in FIG. 12, as the mechanism in which the rollers 14a and 14b automatically return to the original depressions 13a and 13b after the engagement element 20 is displaced in the door opening / closing direction, the inclinations 19a, 19b, 19c and 19d Instead, at least one or more springs 21 a and 21 b fixed to the engaging member 20 and the base member 30 are used. That is, as shown in FIG. 12, the engagement element 20 is normally supported in the door opening / closing direction by springs 21a and 21b attached to have a natural length, and when the rollers 14a and 14b come out of the recesses 13a and 13b, the springs 21a, 21b applies a force to the engagement element 20, and the rollers 14a, 14b automatically return to the original depressions 13a, 13b. Of course, in this case as well, it is possible to arrange the elastic members 17a and 17b as shown in FIGS.

  In another embodiment shown in FIG. 13, as a mechanism for supporting the rollers 14a and 14b, the rollers 14a and 14b are attached to support members 23a and 23b supported at both ends by the second elastic members 22a, 22b, 22c and 22d. You can also Of course, the structures shown in FIGS. 9 to 11 and 12 are also possible in this case.

  In another embodiment shown in FIG. 14, the second elastic members 24a and 24b can be directly attached to the rollers 14a and 14b as a mechanism for supporting the rollers 14a and 14b. In this case, the same idea as in FIGS.

  In the other embodiment shown in FIG. 15, the direction in which the car-side engaging member 11 and the landing-side engaging member 10 collide is perpendicular to the door opening / closing direction in which the engaging element 20 can be displaced. As shown in FIG. 15, inclined portions 25a, 25b, 25c, 25d, or curves (not shown) are attached to the upper and lower ends of the engagement element 20 as shown in FIG. By enlarging, the energy at the time of the collision between the car side engaging member 11 and the landing side engaging member 10 can be more easily released in the door opening / closing direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Entrance / Exit 2a, 2b Boarding door 3a, 3b Car door 4a, 4b Door hanger 5a, 5b Door hanger 6,7 Door rail 8,9 Sill 10 Board side engaging member 11 Car side engaging member 20 Engagement element 30 Base member 13a, 13b depression 14a, 14b roller 15a, 15b guide device 16a, 16b lever 17a, 17b telescopic member 18a-18d stopper 19a-19d slope 21a-21d spring 22a-22d second telescopic member 23a, 23b support member 24a, 24b second Expansion and contraction member 25 Inclined part

1 is an overall front view of a landing portion including a landing-side engagement member that is an object of the present invention. It is a whole front view of the cage | basket part provided with the cage | basket | car side engaging member used as the object of this invention. It is a top view for demonstrating the relationship between a landing side engaging member and a cage | basket | car side engaging member. FIG. 3 is a front view of a car side engaging member according to the first embodiment of the present invention. 5 is a side assembly view of the car-side engaging member of FIG. FIG. 5 is a top assembly view of the car-side engagement member of FIG. 4. FIG. 7 is a partial detail view of the car-side engaging member of FIG. It is mechanism explanatory drawing of the cage | basket | car side engaging member of FIG. It is a front view of the cage side engaging member in the other Example of this invention. It is a front view of the cage side engaging member in the other Example of this invention. It is a front view of the cage side engaging member in the other Example of this invention. It is a front view of the cage side engaging member in the other Example of this invention. It is a front view of the cage side engaging member in the further another Example of this invention. It is a front view of the cage side engaging member in the other Example of this invention. It is a front view of the cage side engaging member in the further another Example of this invention.

Claims (7)

A car door that opens and closes an entrance / exit of the elevator car, a car side engaging member attached to the car door side, a landing door that opens and closes in conjunction with the car door, and a landing side engaging member that is attached to the landing door In an elevator door engagement device comprising:
An elevator door engaging device characterized in that the car side engaging member can be displaced in a door opening and closing direction.   The car-side engaging member includes an engaging element that engages with the landing-side engaging member and a base member that supports the engaging element, and one end of the base member is freely rotatable in the same plane as the car door. A roller that can be rolled in the same plane as the car door is attached to a lever that is fixed to the lever and supported at the other end by an elastic member that can be expanded and contracted in the elevator ascending / descending direction. The base member and the engagement element are fixed when the roller falls into the depression, and the engagement element receives a certain force in the door opening / closing direction. 2. The engagement device for an elevator door according to claim 1, wherein the engagement element can be displaced in a door opening / closing direction when the roller comes out of the depression.   The car-side engaging member includes an engaging member that engages with the landing-side engaging member and a base member that supports the engaging member, and the base member is supported by an elastic member that can be expanded and contracted in the elevator ascending / descending direction. A roller capable of rolling in the same plane as the car door is attached to the support member, and the engagement element is provided with a recess having a recess in the elevator lifting and lowering direction so as to be in the same plane as the car door, When the roller falls into the depression, the base member and the engagement element are fixed, and when the engagement element receives a certain force in the door opening / closing direction, the roller comes out of the depression, thereby causing the engagement. 2. The elevator door engaging device according to claim 1, wherein the lever is displaceable in a door opening / closing direction.   The car-side engaging member includes an engaging member that engages with the landing-side engaging member and a base member that supports the engaging member, and the base member is supported by an elastic member that can be expanded and contracted in the elevator ascending / descending direction. A roller capable of rolling in the same plane as the car door is provided, and the engagement element is provided with a recess having a recess in the elevator ascending and descending direction so as to be in the same plane as the car door. The base member and the engagement element are fixed by dropping into the depression, and when the engagement element receives a certain force in the door opening / closing direction, the roller comes out of the depression, thereby opening and closing the engagement element. 2. The elevator door engaging device according to claim 1, wherein the elevator door engaging device is displaceable in a direction.   5. An inclination is provided around the depression toward the depression, so that the roller automatically returns to the depression even when the engagement element is displaced in the door opening / closing direction. The engagement device for elevator doors as described.   5. The elevator door engagement device according to claim 2, wherein, even when the engagement element is displaced in a door opening / closing direction, the roller is automatically returned to the recess by a spring force. 6.   The elevator door engagement device according to claim 1, wherein a guide is provided at the upper and lower ends of the engagement element so as to be displaced in the same plane as the car door when displacing in the door opening / closing direction.

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