JPH0761835B2 - Elevator door locking device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an elevator installed in a general household.

[Background Art] In recent years, household elevators have been proposed. In this household elevator, the doors at the openings on each floor are opened and closed by hand to get in and out. However, there is a problem in that the door of the opening may be accidentally opened when the car is not located at the opening of the floor or when the car is moving up and down. For this reason, it is possible to lock the door when it is closed. The present inventor has provided, as the lock device, a lock portion that locks the door when the door is closed, and a lock release means that unlocks the lock portion when the car is located at the opening. Thought. In this case, when the car is not located at the opening, the door does not open, and when the car is located at the opening, the lock is released and the door can be opened by hand to get on and off the car. However, even in this case, the door can be opened manually by the time when the car is about to be switched from the unlocked state by the unlocking means to the locked state immediately after the car moves from the position corresponding to the opening. In this case, it is dangerous because the car is trying to move when the door is opened, and there are household elevators on the third floor and above. In this case, when the car passes through the transit floor, the car opens on the transit floor. When the door on the passing floor is unlocked, the unlocking means for the door on the passing floor is temporarily released, and even in this case, the door on the passing floor can be opened by hand. It turns out that there is a new problem of being dangerous.

[Object of the Invention] The present invention has been made in view of the above problems, and an object of the present invention is to provide the first lock releasing means when the car is positioned at the opening and stopped. The lock can be released to open the door, and the second operation is performed even when the closing operation of the first lock applying means is released by the first lock releasing means while the door is closed and the elevator switch of the car is turned on. An object of the present invention is to provide an elevator door locking device which is surely locked by closing the lock portion by the lock closing means and is highly safe.

DISCLOSURE OF THE INVENTION In an elevator door locking device, an opening 2 is provided on each floor of a car 1 for entering and exiting each floor, and an openable and closable door 3 is provided in the opening 2. The door 3 opens the opening 2. The lock portion 4 is provided to lock the door 3 in the closed state.
And a first lock closing means 5 for performing the lock closing operation of the lock lock 4 for releasing the lock closing operation of the lock portion 4 by the first lock closing means 5 with the car positioned at the opening 2. The unlocking means 6 is provided, and the lock part 4 is closed while the door 3 closes the opening 2 even if the first unlocking means 6 is operated with the elevator switch of the car 1 being turned on. The second lock-in means 8 is provided, and by adopting such a configuration, the above-mentioned object of the present invention is achieved. That is, according to the present invention, the door of the opening 2 on the floor where the car 1 is stopped when the car 1 is located at a position corresponding to the opening 2 and is stopped without the elevating switch being turned on. No. 3 is unlocked by the lock unit 4 so that the door 3 can be freely opened. On the other hand, when the car 1 does not correspond to the opening 2, regardless of whether the elevating switch is turned on or not, The lock portion 4 is closed by the lock closing means 5 to lock the closed state of the door 3, and the car 1 is moved immediately after the raising / lowering switch is turned on to move the first lock releasing means 6 by the first lock releasing means 5. Even immediately before the shift from the release of the lock-on operation to the lock-on operation, the lock-in operation is surely performed and locked by the second lock-in device 8, and the car 1 passes through the passing floor. Time Even if the closing operation by the first lock inserting means 5 on the passing floor is released from time to time, the lock closing operation is performed by the second lock inserting means 8 so that the door 3 on the passing floor can be prevented from opening. It is a thing.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings. A car 1 for raising and lowering a person or an object at an arbitrary position in a house is provided between the downstairs and the upstairs so as to be able to move up and down. The car 1 is vertically moved by an elevating device (not shown) arranged under the floor below the car 1. The car 1 is covered with a jacket 9. As the outer cover 9, a recess 10 is provided in a part of the building, and the car 1 is arranged in the recess 10 so that the car 1 can move up and down.
Alternatively, the outer jacket 9 different from the wall of the building may be provided on the floor. The outer cover 9 is provided with an opening 2 on each floor. Door pockets 11 are provided on both sides of the opening 3. A door 3 is arranged in the opening 2 so as to be openable and closable. In the embodiment shown in the accompanying drawings, the left and right main doors are used as the door 3.
3a and the left and right sub doors 3b are used. A rail 12 for the main door and a rail 13 for the sub door are provided from the opening 2 to the door pocket 11. Rails 12 for this main door and rails for sub doors
13 and 13 are provided above and below, respectively. Main rail for main door
12 and the rail 13 for the sub door are arranged side by side in the front and rear. Left and right main doors 3a are movably attached to the main door rails 12 and left and right sub doors 3b are movably attached to the sub door rails 13. Main door in the embodiment of FIG.
3a and the sub door 3b, the runners 14 are respectively upward from the upper surfaces.
And the runners 14 are movably attached to the upper main door rail 12 and the sub door rail 13 respectively, and the lower guides projecting downward from the lower surfaces of the main door 3a and the sub door 3b, respectively. Rails 15 for each lower main door 12
And the sub door rail 13 are movably mounted. An endless belt 16 such as an endless belt or an endless chain is arranged above the main door rail 12 as shown in FIG. 1, and the endless belt 16 is wound around left and right pulleys 17. The left main door 3a is connected to the lower part of the endless rotary belt 16 by a connecting metal fitting 18, and the right main door 3a is connected to the upper part of the endless rotary belt 16 by a connecting metal fitting 18. By doing so, when either one of the left and right main doors 3a is opened, the endless rotary belt 16 rotates to open the other, and when either one is closed, the other also closes. It is like this. Each of the main doors 3a to 3b is provided with a pushing means 19 for pushing the sub door 3b into the door pocket 11 when the main door 3a is opened, and a pulling means 20 for pulling out the sub door 3b when the main door 3a is closed. Here, as the pushing means 19, for example, a pushing projection 21 is provided on the main door 3a, a pushing projection 22 is provided on the sub door 3b, and the pushing projection 21 is pushed when closing. By pressing, the sub door 3b is stored in the door pocket 11 when the main door 3a is stored in the door pocket 11. As the pull-out means 20, for example, as shown in FIGS. 9 and 10, a pull-out projection 23 is projected on the main door 3a, and a pull-out projection 24 is projected on the sub-door 3b. When the main door 3a comes to the fully closed position by pulling out the sub door 3b by the portion 23 hitting the pulling projection 24, the sub door 3b closes the gap between the main door 3a and the door pocket 11. Here, in the embodiment shown in the drawings, the push-in projection 21 and the pull-out projection 23 are partially used in common, and the push-in projection 22 and the push-in projection 24 are also used in part. With such a configuration, the left and right main doors 3a and the sub-doors 3b are housed in the left and right door pockets 11 in a front-back overlapping manner as shown in FIG. 10 when opened. Further, the main door 3a is provided with a handle 25, and the handle 25 is provided with a handle latch 26, which is locked to a handle latch receiver 27 of the other main door 3a, and when the handle 25 is rotated, The handle latch 26 is adapted to be disengaged from the handle latch receiver 27.

In the present invention, a lock device A is provided separately from the lock device on the handle side, which is composed of the handle latch 26 and the handle latch receiver 27. The lock device A includes a lock portion 4 that locks the door 3 in a state in which the door 3 closes the opening 2.
A first lock inputting means 5 for performing the lock inputting operation of the lock portion 4, and a first lock inputting means 5 for releasing the lock inputting operation of the lock portion 4 by the first lock inputting means 5 in a state where the car is positioned at the opening 2. No. 1 unlocking means 6 and the elevator switch of the car 1 are turned on, and the lock part 4 is turned on with the door 3 closing the opening 2 even though the first unlocking means 6 is operating. It is composed of the second lock insertion means 8 for In the embodiment shown in FIGS. 5 to 8, the base 30 of the locking device A is attached to the upper surface of the frame composed of the upper main door rail 12 and the upper sub door rail 13, and this base
A shaft 31 is rotatably supported by a bearing 32 provided in 30.
The first outer cylinder 33 is fixed to the shaft 31, and the first outer cylinder 33 is fixed to the shaft 31.
A second outer cylinder 34 is rotatably fitted next to the outer cylinder 33, and a third outer cylinder 35 is rotatably fitted on the shaft 31 next to the second outer cylinder 34. A lock arm 36 having a lock portion 4 at its tip projects from the third outer cylinder 35.
A rear arm 37 projects from the outer cylinder 35 on the side opposite to the lock arm 36. The second outer cylinder 34 has a front protrusion 38 and a rear protrusion 39.
And 3 are attached to the front projecting piece 38, and one end of the third spring 40 is attached to the front protrusion 38, and the other end of the third spring 40 is attached to the locking arm 36 of the third outer cylinder 35. Also, one end of the rear protrusion 39 is a base
The other end of the second spring 41 attached to 30 is attached to give a spring force for rotating the second outer cylinder 34 in the direction of arrow A in FIG. The second spring 41 serves as the first lock closing means 5. A solenoid 42 which serves as the second lock closing means 8 is further attached to the rear projection 39, and the solenoid 42
Is connected to the rear arm 37. The first outer cylinder 33 is provided with a first spring 44 for applying a spring force for rotating the first outer cylinder 33 in the direction of arrow A. A first notch 45 is provided at the end of the first outer cylinder 33, and
A first protrusion 46 having a width narrower than that of the first notch 45 is provided at the end of the outer casing 34 on the side of the first outer casing 33, and the first protrusion 46 is fitted in the first notch 45. . A second notch 47 is provided at the end of the third outer cylinder 35, and a second protrusion 48 having a width narrower than that of the second notch 47 provided at the other end of the second outer cylinder 34 is provided. It is fitted in the second notch 47. An operating arm 49 is projected from the first outer cylinder 33, and a roller is provided on the upper end of the operating arm 49.
50 is rotatably provided. A solenoid return limit switch 51 is provided at a position facing the operation arm 49, and the solenoid return limit switch 51 is turned on by the operation arm 49 when the operation arm 49 rotates and falls. The door 3 is provided with a moving part 52 (in the embodiment, the connecting part 18 is provided with the moving part 52). When the door 3 is closed, the moving part 52 moves together with the door 3 so that the moving part 52 is provided. The stop portion 53 is located below the lock portion 4 provided at the tip of the locking arm 36. A limit switch 54 for confirming the opening / closing of the door is provided which is turned on by the moving unit 52 when the door 3 is closed. Also rear arm
A lock part closing confirmation limit switch 55 is arranged at a position facing 37, and the lock part closing confirmation limit switch 55 is turned on in the state where the lock portion 4 is locked to the locking portion 53. Is. Here, the limit switch 51 for solenoid return, the limit switch 5 for door open / close confirmation
4. The elevator switch (not shown) of the car 1 is connected in series. Therefore, the solenoid 42 is not energized when the solenoid return limit switch 51 is not turned on.
54, the solenoid 42 when either the lock switch closing confirmation limit switch 55 or the lift switch is not turned on.
It is designed not to energize.

The car 1 has an opening / closing opening facing the opening 2 of the outer jacket 9.
22 is provided. Further, a guide rail 61 is provided which extends over the front portion of the car 1 provided with the entrance / exit opening 60 and both side portions of the car 1, and the left and right doors 62 are attached to the guide rail 61 so as to be freely movable. Here, the left and right doors 62 are configured by rotatably connecting a plurality of door bodies 63 each having a narrow width in the left-right direction, and an upper traveling portion 64 protruding upward is provided on an upper surface portion of the door 62. A lower traveling section that is attached to the upper guide rail 61 so that it can travel freely and that protrudes downward on the lower surface of the door 62.
The 65 is attached to the lower guide rail 61 so that it can travel freely.
An endless belt 66 for a door such as an endless belt or an endless chain is arranged above the upper guide rail 61 along the upper guide rail 61. It is hung around the pulley 67 at the corner. One of the left and right doors 62 is attached to the upper end of the door endless belt 66 by the attachment metal fitting 68.
By doing so, when one of the left and right doors 62 is opened / closed, the other door 62 is also opened / closed in conjunction with the opening / closing operation. Here, when the left and right doors 62 are opened, they are pushed into a position along the left and right side surfaces of the car 1 and stored (see FIG. 13). Door 69 with handle 69
Is provided, and this handle 69 may also be provided with a suitable locking means. The car 1 has rollers 50 on the operating arm 49
An operating projection 70 is provided for rotating the operating arm 49 upon hitting.

Then, in the state where the car 1 faces the opening 2 and is stopped, the roller 50 is pushed by the operation projection 70 and the operation arm 49 rotates, and the solenoid return limit switch.
Although 51 is turned on, the elevator switch is turned off because the car 1 is stopped at the position facing the opening 2. Therefore, the solenoid which is the second lock closing means 8 is turned on.
42 is not energized, and the closing operation of the second lock closing means 8 to the lock portion 4 is released. Also in this case,
When the roller 50 is pushed by the operation projection 70, the operating arm 49 rotates, the first outer cylinder 33 rotates in the direction of arrow B in FIG. 7, and the rotation of the first outer cylinder 33 causes the first outer cylinder 33 to rotate. The first protrusion 46 is pushed by the front edge of the notch 45 to rotate the second outer cylinder 34 in the direction of arrow B in FIG. 7 against the spring force of the second spring 41 which is the first lock inserting means 5. Further, the rotation of the second outer cylinder 34 causes the third outer cylinder 35 to rotate in the direction of arrow B in FIG. 7 via the third spring 40 (in this case, the second protrusion 48 of the third outer cylinder 35 is rotated). By moving the third outer cylinder 35, the lock portion 4 is moved.
Is disengaged from the locking portion 53. Here, in the above operation, the operating arm 49 having the operating projection 70 and the roller 50 serves as the first unlocking means 6. With the lock released by the lock portion 4 as described above, the handle
The door 3 can be opened by grasping 25 by hand. When the door 3 is opened, the moving part 52 moves and the door open / close confirmation limit switch 54 is turned off. Therefore, the door 3
When the car is open, the car 1
Is something that does not move. In order to get on the car 1, if the handle 25 is grasped and the one main door 3a is opened in this state, the other main door 3a is opened in conjunction with this, and the left and right main doors 3a are sub doors 3b. Is pushed by the pushing means 19,
The left and right main doors 3a and the left and right sub doors 3b are housed in the left and right door pockets 5, respectively. Next, grasp the handle 69 by hand and open one of the left and right doors 62.
62 also opens, so you can enter the car 1 in this state.
Next, grasp the handle 25 with your hand and close the one main door 3a,
In conjunction with this, the other main door 3a is closed and the left and right main doors 3a pull out the sub door 3b by the pulling-out means 20 to fully close the opening 2. When the door 3 is fully closed in this way, the moving portion 52 turns on the door open / close confirmation limit switch 54 and the locking portion 53 is positioned below the lock portion 4. Next, when the handle 69 is grasped by hand and one door 62 is closed, the other door 62 is closed in conjunction with this and the entrance / exit opening 60 is fully closed. In this state, the elevator switch for raising and lowering is operated to raise and lower the car 1. In this case, when the elevating switch is turned on, the solenoid return limit switch is turned on, so that the solenoid 42 is energized to raise the solenoid rod 43, and the rear arm 37 is pulled up to move only the third outer cylinder 35 in the direction of arrow a in FIG. The lock portion 4 at the tip of the locking arm 36 is locked by being locked by the locking portion 53.
In this case, the third outer cylinder 35 is rotated by an amount that is wider than the second protrusion 48 of the second cutout 47. When the car 1 moves and the pressing of the roller 50 by the operating projection 70 is released, the operating arm 49 becomes free, so the solenoid return limit switch 51 is turned off and the solenoid 42 is de-energized. The second spring which is the lock inputting means 5 of 1.
The spring force of 41 causes the second outer cylinder 34 to rotate in the direction of arrow A in FIG. 7, and the first protrusion 46 pushes the front edge of the first notch 45 to rotate and operate the first outer cylinder 34. The arm 49 is returned to the state shown by the solid line in FIG. At this time, the second protrusion 48 pushes the front edge of the second notch 42, so that the state in which the lock portion 4 is locked to the locking portion 53 is maintained. Therefore, the car 1 moves and the operating projection 70
Even when the solenoid return limit switch 51 is turned off and the solenoid 42, which is the second lock closing means 8, is de-energized, the lock portion 4 is locked by the locking portion 53. It keeps a good condition. By the way, when there is a passing floor, the operation protrusion 70 pushes the roller 50 of the locking device A on the passing floor to rotate the first outer cylinder 33 when passing through the passing floor. Although the closing of the lock portion 4 is released, in this case, the operating arm 49 is rotated and the solenoid return limit switch is released.
When the solenoid 51 is turned on, the solenoid 42 is energized, the rear arm 37 is pulled up by the solenoid rod 44, and the third outer cylinder 35 is rotated, whereby the lock portion 4 is locked by the locking portion 53 and the locked state is maintained. Be drunk When the roller 50 is released from being pressed by the operation protrusion 70 after passing through the passing floor, the solenoid return limit switch 51 is turned off and the solenoid 42 is de-energized. The cylinder 34 is rotated,
In conjunction with this, the third outer cylinder 35 rotates to lock the lock portion 4 to the locking portion 53, and the locked state is maintained. When the car 1 arrives at the destination floor and reaches the position facing the opening 2 of the destination floor, the operating projection 70 presses the roller 50 of the lock device A on the destination floor to move the first outer cylinder 33 to the position shown in FIG. Is rotated in the direction of arrow B to release the lock portion 4 from being locked by the first lock locking means 5.
When the car 1 stops at the position facing the opening of the destination floor and the lift switch is turned off, the solenoid 42, which is the second lock closing means 8, is de-energized, so that the lock portion by the second lock closing means 8 is locked. 4 is released and the lock part 4
Is disengaged from the locking portion 53. Therefore, the door 3 is opened in this state.

By the way, as described above, the opening and closing of the other main door 3a and the left and right sub doors 3b are interlocked by opening and closing the one main door 3a, and the opening and closing of the other door 62 is interlocked by the opening and closing of one door 62. In particular, when operating in a wheelchair, the car 1 is wheelchaired, and the main door 3a and the doors face backward.
When opening / closing the opening 62, it is only necessary to move the hand from the center of the opening 2 to the left or right and from the center of the entrance / exit opening 60 to the left or right, and the operation can be simplified.

Note that the lock arm 36 is horizontal and the lock portion 4 is
The lock arm closing confirmation limit switch 54 is turned on by the rear arm 37 when the lock closing position limit switch 54 is on. It is advisable to display a lamp or the like to indicate that the locked state can be confirmed.

[Effect of the Invention] According to the present invention, as described above, a lock portion for locking the door is provided in a state where the opening portion of the door is closed, and a first lock inserting means for performing the closing operation of the lock portion is provided. First lock releasing means is provided for releasing the lock-in operation of the lock portion by the first lock-introducing means when the car is positioned at the opening, and the first lock releasing means operates when the elevating switch is turned on. Since the second lock closing means is provided for closing the opening while the door is closed even when the car is operating, the car is located at a position corresponding to the opening and the elevator switch is turned on. The door at the opening on the floor where the car is stopped in the stopped state is not unlocked by the lock part, and the door can be opened freely, while the car corresponds to the opening. Elevating switch when not in use Regardless of whether or not the switch is turned on, the lock portion is turned on by the first lock closing means to lock the closed state of the door, and the car is moved immediately after the raising / lowering switch is turned on to release the first lock. Even when the lock-in operation of the first lock-in means by the means is released immediately before the shift to the lock-in operation, the lock-in operation is surely performed and locked by the second lock-in means, and the lock-in operation is performed. When the car passes through the floor, even if the closing operation by the first lock-in means of the passing floor is temporarily released, the lock-in operation is performed by the second lock-in device to prevent the door of the passing floor from opening. It is possible and extremely safe.

[Brief description of drawings]

FIG. 1 is a front view of an opening portion of the present invention, FIG. 2 is a vertical sectional view of the opening portion of the above, and FIG.
FIG. 4 is an overall longitudinal sectional view of the same as above, FIG. 5 is a plan view of the lock device above, and FIG. 6 is a front view of the lock device above.
FIG. 8 is a side view of the same locking device, FIG. 8 is a partially omitted perspective view of the same locking device, and FIG. 9 is a schematic explanatory view showing a state in which the left and right main doors and sub doors are closed, and FIG. The figure is a schematic explanatory view showing a state in which the left and right main doors and sub doors are opened,
The figure is a schematic front view of the opening / closing opening of the same as above, Fig. 12 is a vertical sectional view of the same, and Fig. 13 is a horizontal sectional view of the door opened.
Figure 14 is a schematic illustration of an endless belt for a door, where 1 is a basket and 2
Is an opening part, 3 is a door, 4 is a lock part, 5 is a first lock input device, 6 is a first lock release device, and 8 is a second lock input device.

Claims (1)

[Claims] 1. A lock part for opening and closing a car to move up and down on each floor, and providing a door that can be opened and closed at the opening, and locking the door when the door is closed. And a first lock-in device for performing a lock-in operation of the lock part, and a first lock-in operation for releasing the lock-in operation of the lock part by the first lock-in device in a state where the car is positioned at the opening. Provided with a lock release means of
An elevator provided with a second lock closing means for closing the opening portion of the door while the first lock releasing means operates while the elevator switch is turned on. Door lock device.