JP4031926B2 - Elevator landing door equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a landing door device that opens and closes an elevator landing opening provided in an elevator hall.
[0002]
[Prior art]
In general, a landing door provided at an elevator hall has a center double-open type in which a pair of door panels divided at the center move in the left and right directions opposite to each other, and the door panel moves in either the left or right direction. There is a single-open type that opens and closes.
[0003]
FIG. 12 is a rear view of the center double-opening type landing door as seen from the hoistway side opposite to the elevator hall. A is the elevator hallway, and the hoistway wall surface on the inner upper side of the hallway A is shown in FIG. A header case 1 is provided, and a hole sill 2 is provided in the lower part inside the entrance / exit A.
[0004]
The header case 1 is provided with a hanger rail 3 extending in the left-right direction. A pair of door hangers 4 are slidably mounted on the hambar rail 3, and a door panel 5 is attached to and suspended from the door hangers 4. Is supported by the hole sill 2.
[0005]
Each door panel 5 moves integrally with the door hanger 4 in the left and right directions opposite to each other along the hanger rail 3 and the hole sill 2 to open and close the entrance / exit A. These door panels 5 operate in conjunction with each other and are urged in a closing direction in which the door panels 5 are always closed by an urging means using a weight or the like.
[0006]
Further, the door device is provided with a locking mechanism 6 for holding the closed state of the pair of door panels 5 and an interlock device 7 for releasably locking the locking mechanism 6 so as to face the hoistway.
[0007]
When the car that moves up and down in the hoistway is landed facing the landing door, the engaging device provided in the car is engaged with the interlock device 7, and the operation of the landing door is performed by this engagement. The locking mechanism 6 is released. When the car door is driven by the driving device provided in the car, both door panels 5 of the landing door are opened against the urging means in conjunction with the car door. Further, when the car door is closed, both door panels 5 of the landing door are closed in conjunction with the car door.
[0008]
When the car moves from the landing floor and the car engaging device is disengaged from the interlock device 7, the door panel 5 is locked by the locking mechanism 6 in accordance with this and is held in an unopenable state. .
[0009]
On the other hand, when the elevator is adjusted, maintained, inspected, repaired, or rescued, the unlock key is inserted into the interlock device 7 from the elevator hall side, the locking mechanism 6 is released, and the door panel 5 is manually opened to some extent. At that position, a tool or other sandwiched object is inserted into the gap between the door panel 5 and the hall sill 2 to lock the door panel 5 to limit the closing thereof. In this state, the worker enters the hoistway from the elevator hall side. I try to do that work.
[0010]
[Problems to be solved by the invention]
However, when the door panel 5 is manually opened, a means for locking the door panel 5 by inserting a pinch such as a tool into the gap between the door panel 5 and the hole sill 2 is used during the adjustment of the elevator or the like. things door panel 5 is inadvertently closing off and scissors product is likely to lead to unforeseen hazards to lower drop in the hoistway.
[0011]
Furthermore, when a strong external force is applied to the door panel 5, the lower part of the door panel 5 into which the sandwiched object is inserted may be deformed or damaged, and the means using the sandwiched object may be locked. The position becomes unspecified, and as a result, for example, when the car is moved up and down during the adjustment work of the elevator, the engaging device of the car collides with the interlock device 7 of the door panel 5 and the engaging device or the interlock device 7 There is a risk of damage.
[0012]
The present invention has been made paying attention to such points, and the object of the present invention is that when the door panel is manually opened, the door panel can be stably locked at a predetermined position, such as adjustment of an elevator. It is an object of the present invention to provide a landing door device for an elevator that can safely and efficiently perform each operation and that does not cause damage to door panels and other equipment.
[0013]
[Means for Solving the Problems]
In order to achieve such an object, the present invention is a door panel that is suspended on a door hanger that moves along a hanger rail and moves along the hanger rail together with the door hanger to open and close an elevator entrance / exit. And a plurality of stoppers provided on the door hanger, and a lock pin that locks the door panel protruding by operation of the stoppers , and the stoppers were operated simultaneously with the door panel being manually opened. A door lock mechanism capable of locking the door panel with a protrusion of the lock pin and restricting a closing operation of the door panel, and the lock pin of the door lock mechanism is moved in the protrusion direction by a first spring. Elastically biased, the plurality of stops comprise a first stop and a second stop, these stops; Is movable in the vertical direction perpendicular to the protruding direction of the lock pin, and is elastically biased downward by the second spring. The first stopper has a notch, and the second stopper A step is formed in the tool, and the first and second stoppers are simultaneously pushed upward against the second spring, whereby the locking pin provided on the lock pin is moved to the first pin. The first and second stoppers engage with the notch of the first stopper by the biasing force of the spring, engage with the stepped part of the second stopper, and the lock pin protrudes to lock the door panel. When the push-up of the tool is released, the first stopper is moved downward by the urging force of the second spring by the relative movement of the locking pin in the notch, and returns to the original position. The second stopper is a step with the locking pin. The lock pin and the door panel are kept in a locked state by the engagement with the engagement member, and when the first stopper is pushed upward from this state, the notch portion causes the locking pin to be The lock pin is pushed and moved in the direction opposite to the protruding direction. With this movement, the locking pin is released from the stepped portion of the second stopper and returns to the original position, and the door panel is unlocked by the lock pin. It is characterized by that.
[0014]
The invention according to claim 2 is characterized in that the plurality of stoppers of the door lock mechanism are provided in parallel along the hanger rail .
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the part corresponding to the conventional structure shown in FIG. 12, and the overlapping description is abbreviate | omitted.
[0020]
FIG. 1 shows a rear view of the landing door, and FIG. 1 (A) shows a state in which both door panels 5 of the landing door are closed to each other and locked by the locking mechanism 6 so as not to be opened. (B) shows a state in which the locking mechanism 6 is released and the door panels 5 are opened by an interval L.
[0021]
A door lock mechanism 11 is provided on the back surface of the door hanger 4 on which one door panel 5 is suspended. When the door panel 5 is manually opened by the door lock mechanism 11, the door panel 5 is locked to limit the closing thereof. It can be done.
[0022]
As shown in FIGS. 2A and 2B, the door lock mechanism 11 is attached to the door hanger 4 so as to face the back surface of the header case 1.
[0023]
A more detailed structure of the door lock mechanism 11 is shown in FIGS. 3 to 9, and the door lock mechanism 11 has an inverted U-shaped frame 12 and is locked so as to penetrate both side walls of the frame 12. A pin 13 is slidably inserted in an intermediate portion in the frame 12.
[0024]
As shown in FIG. 2, the frame 12 faces the back surface of the header case 1 with a gap S therebetween, and the lock pin 13 is moved by a spring 15 so as to protrude from the frame 12 toward the back surface of the header case 1. It is elastically biased. The header case 1 is formed with an engagement hole 16 that can be engaged with and disengaged from the lock pin 13. A locking pin 14 that extends horizontally is attached to both sides of the locking pin 13.
[0025]
First and second stoppers 21 and 22 are provided in the frame 12 on both sides of the lock pin 13. The stoppers 21 and 22 have guide pins 23 and 24, respectively. The guide pins 23 and 24 pass through the upper wall of the frame 12 and the lower wall of the bracket 25 provided inside the frame 12, respectively. Thus, it is slidably supported in a direction perpendicular to the lock pin 13.
[0026]
The guide pins 23 and 24 are provided with springs 27 and 28, and the springs 27 and 28 elastically bias the stoppers 21 and 22 downward.
[0027]
Locking plates 31 and 32 are attached in the middle of the guide pins 23 and 24, and the locking plates 31 and 32 are locking portions 33 and 34 that face the side surfaces of the lock pin 13, and a lower wall of the bracket 25. It has operation portions 35 and 36 that extend outside the side wall and extend below the lower wall and bend at a right angle to come into contact with the lower end surfaces of the guide pins 23 and 24.
[0028]
Further, as shown in FIG. 5, a notch 38 extending obliquely upward is formed on the side edge of the locking portion 33 in the first stopper 21, and the locking portion in the second stopper 22 is formed. As shown in FIG. 6, a step 39 having a first edge portion 39a and a second edge portion 39b which are different from each other is formed on the side edge of 34.
[0029]
Further, the operation unit 35 in the first stopper 21 and the operation unit 36 in the second stopper 22 are arranged in parallel to each other and at the same level. Further, in the middle portion of the lower wall side edge of the bracket 25, the tamper prevention is performed so as to be located between the operation portion 35 of the first stopper 21 and the operation portion 36 of the second stopper 22. A restricting portion 40 is provided. The restricting portion 40 is formed in a shape that is bent in an L shape that is substantially the same shape as the operation portions 35 and 36.
[0030]
When the door lock mechanism 11 is not in operation, the locking pin 14 extending to one side of the lock pin 13 abuts on the upper side edge of the notch 38 in the locking portion 33 as shown in FIG. As shown in FIG. 6, the locking pin 14 extending to the other side of the contact 13 abuts on the first edge 39 a of the locking portion 34, so that the lock pin 13 resists the spring 15. As shown in FIG. 3, the frame is held away from the header case 1 and immersed in the frame 12. In addition, the operation portions 35 and 36 in the stoppers 21 and 22 are held at substantially the same level as the restricting portion 40.
[0031]
From this state, when performing operations such as elevator adjustment, maintenance inspection or restoration, and rescue of passengers, the interlock mechanism 7 is operated from the outside of the door panel 5 to release the locking mechanism 6 and the door panel 5 is manually operated . open to release. At this time, as shown in FIG. 2B, a thin key K is inserted into the gap between the front surface of the door panel 5 and the header case 1, and this key K is inserted into the first and second stoppers 21. , 22, and the first and second stoppers 21, 22 are simultaneously pushed upward against the springs 27, 28.
[0032]
The push-up causes the cutout portion 38 of the first stopper 21 and the stepped portion 39 of the second stopper 22 to be displaced upward, so that the locking pin extending to one side of the lock pin 13 as shown in FIG. 14 enters the notch 38 by the urging force of the spring 15 and engages with it, and the locking pin 14 extending to the other side as shown in FIG. 10 is moved from the first edge 39a to the second edge 39b. Into the second edge 39b. Then, the lock pin 13 protrudes from the frame 12 and fits into the engagement hole 16 of the header case 1, and the door panel 5 is locked to the header case 1 at a predetermined position by this fitting.
[0033]
When the push-up with respect to the stoppers 21 and 22 is released, in the first stopper 21, the locking pin 14 of the lock pin 13 moves relatively inside the obliquely cutout portion 38 and escapes. The first stopper 21 moves downward by the urging force of the spring 27 and its own weight, and returns to the initial position. On the other hand, in the second stopper 22, the horizontal edge 39 c between the first edge 39 a and the second edge 39 b abuts on the locking pin 14 of the lock pin 13, so that Therefore, the protruding state of the lock pin 13, that is, the locked state of the door panel 5 is maintained as it is.
[0034]
Thereby, even if the key K is extracted and the hand is released from the door panel 5, the automatic closing operation is limited, and the open state of the door panel 5 is maintained. Therefore, in this state, operations such as elevator adjustment, maintenance inspection or restoration, and rescue of passengers are performed.
[0035]
The door panel 5 is accurately locked by the lock pin 13 without using a pinch. Therefore, the pinch does not come off and fall into the hoistway during the adjustment of the elevator or the like. And work can be done efficiently.
[0036]
Further, since the door panel 5 is properly locked by the lock pin 13, it is not deformed or damaged even when a strong external force is applied to the door panel 5, and the door panel 5 is accurately locked at a predetermined position. Therefore, even if the car is raised and lowered during the adjustment work of the elevator, there is no fear that the engaging device of the car will collide with the interlock device 7 of the door panel 5.
[0037]
On the other hand, when unlocking the door panel 5, the thin key K is inserted into the gap between the front surface of the door panel 5 and the header case 1 and the first stopper 21 is moved upward against the spring 27. Push up. Along with this operation, the locking pin 14 of the lock pin 13 is pushed and moved away from the header case 1 against the spring 15 by the side edge of the obliquely inclined notch 38, whereby the locking pin 14 is moved. The second stopper 22 is detached from the horizontal edge 39c of the locking portion 34, and the second stopper 22 is moved downward by the spring 28 and its own weight in accordance with the separation.
[0038]
As a result of this movement, the second edge 39b of the locking portion 34 of the second stopper 22 comes into contact with the locking pin 14, and this contact brings the lock pin 13 into the initial position where it enters the frame 12. The engagement between the lock pin 13 and the engagement hole 16 is released.
[0039]
After the edge portion 39b is brought into contact with the locking pin 14, by releasing the push-up for the first stop 21, initially the first stopper 21 is moved more downward spring 27 and its own weight Return to position. When the door panel 5 is unlocked in this way, the door panel 5 automatically moves in the closing direction and closes.
[0040]
The lock operation of the door panel 5 does not necessarily have to be performed at a position where the lock pin 13 faces the engagement hole 16 of the header case 1. In this state, the door panel 5 is moved to the left and right, and when the lock pin 13 faces the engagement hole 16, the lock pin 13 is fitted into the engagement hole 16 by the elastic force of the spring 15. It is possible to lock it with a simple work.
[0041]
By the way, when performing the locking operation, as described above, it is necessary to push up the operation portions 35 and 36 of the first and second stoppers 21 and 22 at the same time. A restricting unit 40 is provided. Therefore, even if the operating units 35 and 36 are operated by mischief, the restricting unit 40 may operate both the operating units 35 and 36 simultaneously. This makes it difficult to prevent the locking operation by mischief.
[0042]
In actual regular locking operation, a dedicated operation key K as shown in FIG. 11 can be used. The operation key K has a pair of convex portions K1 and K2 which are separated from each other at an end portion on one end side. The insertion of this operation key K into the gap between the door panel 5 and the header casing 1, by pressing the operation portions 35 and 36 across one of the protrusions K1 and the other protrusion K 2 and the restriction portion 40 The operation parts 35 and 36 can be pushed up simultaneously to perform the locking operation easily and efficiently.
[0043]
Further, the other end portion of the operation key K of the dedicated, it is also possible to form the key portion K 3 for operating the interlocking device 7, in this manner only using the one operation key K The operation of the interlock device 7 and the lock operation of the door panel 5 can be performed, which is more convenient.
[0044]
In addition, in the said embodiment, although the example at the time of applying this invention to the center double opening type landing door was given and demonstrated, it can apply similarly also to a single opening type landing door. is there.
[0045]
【The invention's effect】
As described above, according to the present invention, when the door panel is manually opened, the door panel can be stably locked at a predetermined position, and each operation such as adjustment of the elevator can be safely and efficiently performed. And no danger of damaging other equipment.
[Brief description of the drawings]
FIG. 1 is a rear view showing a landing door device according to an embodiment of the present invention.
FIG. 2 is a configuration diagram viewed from the side of the landing door device.
FIG. 3 is a front view showing a state when the door lock mechanism of the landing door device is not operated;
FIG. 4 is a plan view of the same.
FIG. 5 is a left side view of the same.
FIG. 6 is a right side view of the same.
FIG. 7 is a front view showing a state when the door lock mechanism is activated.
FIG. 8 is also a plan view.
FIG. 9 is a left side view of the same.
FIG. 10 is a right side view of the same.
FIG. 11 is a plan view showing operation keys used for the lock operation of the door lock mechanism.
FIG. 12 is a perspective view of a conventional general landing door device as viewed from the back.
[Explanation of symbols]
A ... landing port 1 ... header case 4 ... door hanger 5 ... door panel 6 ... locking mechanism 7 ... interlock device 11 ... door lock device 13 ... lock pin 14 ... locking pin 16 ... engagement holes 21, 22 ... fasteners 23, 24 ... Guide pins 33, 34 ... Locking portions 35, 36 ... Operation portion 38 ... Notch portion 39 ... Step portion 40 ... Restriction portion

Claims (2)

A door panel that is suspended on a door hanger that moves along the hanger rail, and that opens and closes the entrance of the elevator by moving along the hanger rail together with the door hanger;
A plurality of stoppers provided on the door hanger, and a lock pin that locks the door panel protruding by operation of the stoppers , and when the door panel is manually opened and the stoppers are operated simultaneously; A door lock mechanism capable of locking the door panel with the protrusion of the lock pin and restricting the closing operation of the door panel;
The lock pin of the door lock mechanism is elastically biased in the protruding direction by a first spring, and the plurality of stops include a first stop and a second stop. It is movable in the vertical direction perpendicular to the protruding direction of the lock pin, and is elastically biased downward by the second spring. A cutout is formed in the first stopper, and the second stopper A step portion is formed, and when the first and second stoppers are simultaneously pushed up against the second spring, the locking pin provided on the lock pin is driven by the first spring. The urging force engages with the notch portion of the first stopper, engages with the step portion of the second stopper, the lock pin protrudes to lock the door panel, and the first and second stoppers When the push-up is released, the first When the locking pin relatively moves in the notch, the locking tool moves downward by the biasing force of the second spring and returns to the initial position. The second locking tool is stepped from the locking pin. When the first stopper is pushed up from this state, the locking pin is pushed by the notch portion when the lock pin and the door panel are locked. Is pushed in the direction opposite to the protrusion of the lock pin, and this movement causes the locking pin to disengage from the stepped portion of the second stopper and return to the original position, and the door panel is unlocked by the lock pin. hall door device for an elevator, characterized in that that.   2. The elevator landing door device according to claim 1, wherein the plurality of stoppers of the door lock mechanism are provided in parallel along the hanger rail. 3.

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