JP4142101B2 - Door coupler and lock device - Google Patents

Description

The present invention relates to a door coupler according to the first stage of claim 1 and a locking device according to the first stage of claim 6.
In an elevator provided with an automatic door, the connection between the car door and the floor door is generally performed using a door coupler, and the door coupler is mounted on the car door, and the gripping element engages with a corresponding part mounted on the floor door. . Since the door coupler and the corresponding part fit closely against each other, when the elevator car is passing by the floor door, the corresponding part of the floor door passes between the gripping elements of the door coupler. When the car is on the floor and the car door moves, the door coupler engages with the corresponding part. In this manner, when the door is moved by the power means connected to the door, the floor door moves together with the door. Often the gripping element is a metal vane that protrudes from the door coupler toward the floor door and forms a kind of vertical slot that opens toward the floor door. A frequently used counterpart consists of a roller attached to the floor door and protruding from the floor door toward the elevator shaft. The axle of the roller is attached at a position perpendicular to the door surface. In conjunction with the door coupler or car door itself, there is a locking device that closes the car door so that it cannot be opened at least by special means, but when the elevator car is near the floor, i.e. Except when the elevator car is in the so-called door area. Elevator door locking systems must be reliable and durable. The elevator door lock must not create annoying noise.
There are various devices for locking elevator doors that are reliable and suitable for use with elevator doors. For example, in a locking system operated by independent electromechanical actuators, the elevator needs to have an independent subsystem or parallel system for door operation control that handles door locking and unlocking. Locking systems that use independent electromechanical actuators always have an additional cost corresponding to the price of the actuator.
There is also a mechanical locking system, which obtains the driving force to lock the door from the operation of the elevator car or car door. In such a system, the floor area is specified and / or the operation of the lock is controlled by an independent runway or other sign. These runways or other signs are provided on each floor in the elevator shaft and are fixed in a non-movable position relative to the elevator shaft. In order to attach such a runway or sign to each floor in the elevator shaft, a great amount of installation time is required. Long installation times mean high labor costs.
Often, the locking mechanism occupies a large amount of space, so that some of the locking device installation affects the design of the elevator car door or door suspension.
A simple and mechanically operated elevator car door locking device, which can be used in modern elevator environments and modern elevator technology, can be manufactured inexpensively and is advantageous for efficient use of space In order to meet the need to realize that it is easy to install, quiet during operation, and united with a door coupler, a new door coupler and a new locking system are provided as the present invention. The door coupler according to the present invention is characterized by the matters described in the characterizing stage of claim 1 and the locking device according to the present invention is characterized by the matters described in the characterizing stage of claim 6. Other embodiments of the invention are characterized by what is stated in the other claims.
The advantages obtained by the present invention include:
-The locking device can be manufactured inexpensively.
-Because of the combination with the door coupler, the locking device allows for a more concise door concept application. Combining the door coupler and the locking system simplifies installation.
-The lock is controlled by operation of the door coupler. In other words, it is controlled by whether or not there is a corresponding part attached to the floor door within the range of the gripping element of the door coupler. Thus, the elevator shaft does not need to be provided with a separate control device or a sign indicating the door area.
-Since the locking device does not occupy much space, it is not difficult to accommodate it in an elongated mechanism.
-The locking device is easy to attach in connection with the door, is mechanically controlled and does not require an electrical drive.
-The door is kept locked outside the floor area and the lock is not affected by possible obstacles to the elevator electrical system.
-In case of a power outage, the elevator stops between the floors and the door can be opened after manually moving the elevator to the floor.
-The device does not make any extra noise while the elevator is running or when the car door is locked or unlocked.
-The locking and unlocking of elevator car doors depends on the opening and closing of the door, both mechanically and temporally.
The present invention will now be described in detail by way of example with reference to the accompanying drawings.
1 and 2 show a door coupler according to the invention with a locking system when the car is outside the floor area,
FIGS. 3 and 4 show a door coupler according to the present invention with a locking system when the car is in the floor area.
In this specification, a member is represented by terms such as left and right and up and down. These terms represent the corresponding directions in the figure, and the descriptions “clockwise” and “counterclockwise” are the same.
A door coupler 4 having a lock and its operation according to the present invention will be described with reference to FIGS. FIGS. 1 and 2 show a situation in which the elevator car is outside the floor area and the door coupler vanes 14 and 15 cannot contact the rollers that make up the corresponding part of the floor door. FIGS. 3 and 4 show the door coupler blades 14 and 15 meshing with the floor door rollers 17 and 18 when the elevator car is in the floor area and the door is opened. The door coupler 4 is mounted on the card door suspension plate 1. The card door suspension plate 1 includes a support roller, and usually includes a corresponding roller. The corresponding roller travels along a guide rail or other suitable guide surface of an overhead support beam fixed to the elevator car. Thus, the door is suspended from the overhead support beam supported by the suspension plate.
Between door coupler vanes 14 and 15, rollers 17 and 18 (shown in FIG. 4) attached to the floor door operate when the door coupler engages the floor door, and each vane is activated by the car door operation. It is attached to the chain system 2. A lock stopper 10 is also connected to the chain 2 to lock the card door. The lock stop engages with a non-movable detent with respect to the card door, which is attached to the overhead beam, for example, which supports the door or, in some cases, the door panel that moves in the opposite direction. The car door actuator opens and closes the car door. The actuator also opens and closes the floor door, which is connected to the car door by a door coupler. The car door actuator is, for example, rope-driven, acts in the door opening / closing direction, and is attached to the door coupler 4. Instead of the rope drive, the door actuator may be some other type of operating means, and a driving force acting in the car door operating direction may be generated by a hydraulic cylinder or the like. The door is actually operated by a door coupler. The rope drive is connected to the chain 2 by the operation lever 5 via the connection point 3, and the operation lever 5 rotates around the pivot 6 in the rope pulling direction within the range of the operation region by the action of the rope drive. Therefore, the pivot 6 is non-movable with respect to the door coupler 4 (also with respect to the suspension plate 1 supporting the door coupler). The operating lever 5 is connected to the suspension plate 1 by a pivot 6 to enable rotational movement. The operation of the operating lever 5 with respect to the pivot 6 causes the lock stop 10 and the blades 14 and 15 to move appropriately by the chain 2. In either case, the appropriate movement is determined by whether the elevator is in the door area. Information on whether the elevator is in the door area is obtained based on the presence of floor door rollers in the gap between vanes 14 and 15. Accordingly, the height of the gap between vanes 14 and 15 must be substantially equal to the height of the door area.
FIG. 1 shows an arrow starting from the connection point 3, closing and opening. The closed arrow indicates the direction in which the rope drive pulls the door when the door is closed (left direction in the figure), and the open arrow indicates the direction in which the rope drive pulls the door when the door is opened (in the figure, (Right direction). The closing arrow also indicates the direction of the door closing movement, and the opening arrow indicates the direction of the door opening movement. In FIG. 1, when the rope drive tries to open the door, the operation lever 5 rotates about the pivot 6 in the clockwise direction, and the angle is drawn on the pivot 6 by the sector 6a. The rotational movement of the other parts 7, 8, 9 in the chain due to the rotation of the operating lever 5 is indicated in the appropriate part by the sectors 7a, 8a, 9a. These parts 7, 8, 9 of the chain rotate about pivots 7b, 8b, 9b which are non-movable with respect to the door coupler. These pivots 7b, 8b, 9b are non-movable with respect to the door coupler and are represented by solid (black) circles in the figure. Non-movable door couplers at all other pivots and connection points are also represented by filled circles. Pivots and connection points that move with the chain are represented by empty (white) circles. FIG. 2 shows the positions of the chain, the door coupler blades 14, 15 and the lock stop 10, in which they have ended as a result of the action of the chain 2 due to the operation of the operating lever.
Next, how the motion effect generated by the operating lever 5 rotating over the sector 6a is transmitted to the chain 2 will be described. The operating lever 5 is connected to the chain by three movable pivots 5x, 5y and 5z. Below the operation lever 5 is a support lever 21, which is rotatably connected to a non-movable pivot 21a and has movable pivots 21x and 21y. The lever arms between the pivots 21a and 21x and between the pivots 6 and 5x are of equal length. Similarly, the lever arms between the pivots 21a and 21y and between the pivots 6 and 5y are of equal length. The left wing plate 14 is connected to the operation lever 5 and the support lever 21 by pivots 5x and 21x. A synchronizing rod 16 is connected to the operating lever 5 and the supporting lever 21 by pivots 5y and 21y so that the pivots 5x, 21x, 5y and 21y constitute the rhomboid apex, and thus the left wing plate 14 and the synchronizing rod 16 are parallel to each other, and each lever arm between the pivots 21a and 21x and between the pivots 6 and 5x is parallel to each other, and each lever arm between the pivots 21a and 21y and between the pivots 6 and 5y Are parallel to each other. In effect, the sync rod 16 corresponds to the vane of a normal door coupler corresponding to the vane 15 as long as it is operating. This vane plate 15 acts as a slide vane plate that drives the lock, and is a separation surface structure of the synchronizing rod 16. When the vane plate 15 is separated from the immediate vicinity of the synchronizing rod 16, the lock stopper 10 is released. To prevent. Connected to the operating lever 5 by the pivot 5z is the left end of the first rod 22, which connects the operating lever 5 to the upper triangular lever 7. The rod has a joint 22a between its ends, which allows the rod to bend. The upper triangular lever 7 is held by a non-movable pivot 7b. Centered on this pivot 7b, the upper triangular lever has pivots 7x and 7z and a connection point for the traction spring 23, and the spring operates with the triangular lever. Connected to the uppermost pivot 7z is the right-hand end of the rod 22. When the operating lever 5 rotates clockwise and the rod 22 moves to the right, the triangular lever also rotates clockwise. This clockwise movement is assisted by the traction spring 23, which applies a traction force to the right connection point 7y, which acts towards the connection point 23a of the traction spring to the suspension plate. If the rod does not have a joint 22a, the traction spring 23 is not necessary. The clockwise rotation of the first triangular lever 7 results in moving the left-hand pivot 7x of the triangular lever 7 upward, and thus the right-hand movable pivot 8y of the second triangular lever 8 is moved to the second rod. By pulling upward by 24, the triangular lever 8 is rotated counterclockwise about the pivot 8b, and the left hand pivot 8x is moved to the right. The first end of the rod 24 is connected to the pivot 7x and the second end is connected to the pivot 8y. The pivots 8b, 8x, 8y of the triangular lever 8 are arranged near the apex of the triangular lever 8.
In effect, the operation of the various parts of the chain in the above description applies both inside and outside the floor area, and this operation is performed by the door control reference, in other words, the traction generated by the door operation. This is because the operation lever 5 rotates over an angle corresponding to the sector 6a when the direction changes from the closing direction to the opening direction.
Referring now to FIGS. 1 and 2, the situation when the elevator car is outside the floor area is shown, and with reference to FIGS. 3 and 4, the elevator car is within the floor area. The situation is shown.
It is the third rod 25 that is connected to the pivot 8x by its first end by means of the triangular lever 8. The third rod 25 is rotatably attached to the right-hand end portion of the substantially L-shaped lock lever 11 by the pivot 25a between both ends. The lock lever 11 is substantially stationary, but this is ensured by a compression spring 12 that applies upward pressure on the left hand end of the lock lever, which in turn locks the lock stop 10 into the locked position. Is pressed against. In the drawing, the springs 12 and 23 are shown only in FIG. The triangular lever 8 moves the first end of the rod 25 connected to the pivot 8x to the right, the rod 25 rotates about the pivot 25a, so that the second end of the rod moves to the left, The fourth rod 26 exerts a force on the pivot 27a between both ends of the first suspension lever 27 of the blade 15 and, as a result, rotates the lever 27 counterclockwise. The first end of the fourth rod 26 is connected to the second end of the third rod 25 by a pivot 25x, and the second end of the fourth rod 26 is connected to the first suspension lever. 27 is connected to a pivot 27a. The vane 15 is connected to the door coupler by two suspension levers 27 and 28. A first suspension lever 27 and a second suspension lever 28 are rotatably connected to the suspension plate 1, the plate being non-movable relative to the door coupler, at the first end of each lever, with a pivot 27x and The door coupler is supported via 28x. The second ends of the suspension levers 27 and 28 are connected to the blade plate 15 via pivots 27y and 28y. The two suspension levers 27 and 28 are the same length. The pivots 27y, 28y, 27x and 28x are so arranged with respect to each other and with respect to the suspension plate 1 so that when the suspension levers 27 and 28 rotate, the vanes 15 are held in parallel in the vertical direction. Thus, the chaining action simply moves the vane 15 to the left without releasing the lock when the car is outside the floor area. A compression spring 12 ensures that the vane moves to the left. Due to the force applied to the lock lever 11 by the compression spring, the pivot 25a remains stationary even when the pivot 25x is moving.
Referring to FIGS. 3 and 4, the situation is shown here where the elevator car is in the floor area and the car door is unlocked.
FIG. 3 shows a sector 6a in the pivot 6, showing the angle at which the operating lever 5 first rotates clockwise to unlock, and shows another sector 6A, showing the operating lever 5 Represents the angle at which the door coupler 4 is then rotated to engage the rollers 17 and 18 at the floor door.
By means of the above-described method, the action of the chain is, inter alia, as resulting from the rotational movement of the triangular levers 7 and 8, as represented by the sectors 7a and 8a drawn on the tops of the levers. The right-hand vane 15 is pressed against the right-hand roller 18 when the elevator car is in the floor area, so some of the various parts of the chain are when the car is outside the floor area It works in a different way. As described above, the roller 18 is, so to speak, a fixed roller, in other words, one of the rollers that is substantially immovable in the horizontal direction with respect to the floor door when the door coupler vane is suppressed thereto. One. On the other hand, the roller 17 can move over some distance relative to the floor door, so that the action due to the pressure applied to this roller by the door coupler vane 14 can be used to unlock the floor door. Since the vane plate 15 is pressed against the roller 18, the roller prevents the vane plate from moving to the left. The important motion in the desired operation is the clockwise rotational movement of the third rod 25 about the pivot 25x, which is made over the angle indicated by the sector 25A and is the result of the counterclockwise rotation of the triangular lever 8 Arises as
FIG. 4 shows the position of the chain 2 part, the door coupler blades 14 and 15 and the lock stopper 10, which are the functions of the chain caused by the operation lever operating over an angle corresponding to the sector 6 a. As a result, the process has come to an end. Connected to the pivot 8x at the triangular lever is the first end of the rod 25 whose lower end is connected to the fourth rod, and the pivot 25x at that end has a triangular lever at its upper end. When it is moved to the right, it functions as a fulcrum for its rotational movement. Since the movement of the right hand vane 15 and thus the movement of the suspension lever 27 is also prevented, the pivot 25x at the end of the right hand of the fourth rod is substantially non-movable in the rotational movement of the third rod 25. It functions as a fulcrum of In this case, the action of the compression spring 12 on the lever 11 is inferior due to the support force indirectly received by the pivot 25x. Therefore, the pivot between the ends of the third rod, to which the L-shaped lock lever 11 is connected, is pulled to the right over a certain distance. Towing by the operation of the lock lever 11 releases the lock stopper 10 and thus starts the opening operation of the car door. At the same time, the safety switch 13 connected to the lock stopper 10 is opened. From the safety switch, an electrical signal indicating whether the car door is locked is supplied to the safety circuit and, if necessary, to the elevator control system. After the lock is released, the operation lever further rotates over a distance corresponding to the sector 6A shown in FIG. This operation lever moves the left-hand door coupler blade 14 in contact with the left-hand roller 17 at the floor door, and finally moves the door coupler rollers 17 and 18 between the door coupler blades 14 and 15. This results in pressing and completing the connection between the floor door and the car door. The operation lever is rotatable over the sector 6A. This is because the rod 22 includes the joint 22a so that the rod can be bent, and the movement of the rod with respect to the triangular lever 7 after the lock is released is substantially completely received by the bending of the rod 22.
It will be apparent to those skilled in the art that other embodiments of the invention are not limited to the examples described above but may vary within the scope of the claims that follow.

Claims (8)

A closed position that includes a gripping element configured to operate through the chain and grips at least one corresponding portion provided on the floor door to prevent card door movement and an open position that allows card door movement. A door coupler coupled to an elevator car door which is interlocked with the lock stopper, the door coupler including an operation lever for moving the gripping element, and the unlocking operation of the lock stopper from the closed position to the open position is performed as described above. When the gripping element is moved by the operation lever and pressed against the corresponding portion, it is allowed by using a supporting force generated during the pressing, and after the unlocking operation, the card door A door coupler connected to an elevator car door, characterized in that driving is started. 2. The door coupler according to claim 1, wherein the operating lever is connected to an elevator car door which obtains a driving force from an external power source and moves the gripping element to grip the corresponding portion. Door coupler. 3. The door coupler according to claim 1, wherein the operation lever obtains a driving force necessary for causing the gripping element to grip the corresponding portion from a driving force for moving the door operation. The door coupler connected to the elevator car door. The door coupler according to any one of claims 1 to 3, wherein the operation of the operation lever for releasing the lock and engaging with the corresponding portion is composed of two stages, In the stage, the presence of the corresponding part within the gripping element is recognized by one of the gripping elements, and when the gripping element contacts one of the corresponding parts, the locking is released and Two stages are possible, the second stage being characterized in that the other part of the gripping element engages the gripping element by contacting the other one of the gripping elements. Door coupler connected to car door. The door coupler according to any one of claims 1 to 4, wherein the gripping element is two vertical blades with a gap therebetween, the gap including at least an upper end and a lower end thereof, and the floor door. The blades are bent in the direction away from the gap at the upper end and the lower end thereof, and the corresponding portion protrudes from the floor door toward the elevator shaft, A door coupler connected to an elevator car door, wherein the door coupler is a roller arranged in the gap of a blade. A lock stopper disposed in connection with the door coupler and having a closed position that prevents the card door operation and an open position that enables the card door operation, and a chain that is driven by an operating lever that obtains a driving force from an external power source, The chaining action includes: a locking device that locks an elevator car door that moves the lock from the open position to the closed position and from the closed position to the open position, the lock being in the closed position; When the gripping element of the door coupler is pressed against the corresponding part, the lock stopper is moved from the closed position to the open position by utilizing the supporting force generated during the pressing, and the lock stopper is opened. after had kinematic into position, the drive of the car door is started, when the gripping element is not encountered in the corresponding portion, the elevator car, characterized in that the gripping elements are driven Locking device to lock the A. 7. The locking device according to claim 6, wherein said chain includes a lock lever for moving said lock stop from said open position to said closed position and from said closed position to said open position, said lock lever being loaded by a spring. A locking device for locking an elevator car door, wherein the spring presses the locking stop toward its closed position. 8. The locking device according to claim 7, wherein a force generated by the spring on the pivot in the chain to maintain the pivot in a normal position is that the operating lever rotates in the opening direction and simultaneously a right hand. A locking device for locking an elevator car door that is smaller than a reaction force generated by the operation of the chain when the blade plate is pressed against the roller of the right hand.

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