JPH07106864B2 - 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. Then, a handle side latch is provided on the handle for opening and closing the door, and the handle side latch is locked or unlocked by operating the handle to lock the door. However, just by locking and unlocking the handle in this way, the handle is operated to operate the handle when the car is not located in the opening or when the car is moving up and down. May be opened accidentally,
There was a problem that it was 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 open a door when a car is located at an opening and to open the door. When the door is not in the position corresponding to the opening in the closed state, the door cannot be opened because it is locked, and the opening is closed even if the door is in the position corresponding to the opening. (EN) Provided is a lock device for an elevator door that cannot lift a car unless it is in a closed state.

DISCLOSURE OF THE INVENTION An elevator door lock device according to the present invention is provided with an opening 2 for allowing a car 1 that moves up and down to access a floor.
The opening 2 is provided with a door 3 that can be opened and closed, a lock portion 4 is provided for automatically locking the door 3 when the door 3 is closed, and a lock is performed when the car 1 is located in the opening 2. A lock releasing means 6 for automatically releasing the lock-in operation of the portion 4 is provided, and a handle 25 provided on the door 3 is provided with a handle latch 26 which is a locking means different from the lock portion 4, and the door 3 is provided.
When the handle is closed, the handle latch 26 can be locked to the grip latch receiver 27, and the handle 25 can be rotated to release the lock between the handle latch 26 and the handle latch receiver 27, and the door 3 can be opened. A confirmation switch 7 for confirming the closed state of 2 is provided,
The car 1 can be moved up and down only when the confirmation switch 7 is turned on, and by adopting such a configuration, the above-described object of the present invention is achieved. That is, according to the present invention, the lock portion 4 is provided to lock the door 3 in the state where the door 3 is closed, and the lock-in operation of the lock portion 4 is released when the car 1 is located in the opening 2. By providing the lock releasing means 6 for opening the door 3, the door 3 can be opened when the door 3 is located in the opening 2, and when the door 3 is closed and separated from the opening 2, the lock 4 is opened. Since the door 3 cannot be opened because the door 3 is closed after being turned on, the confirmation switch 7 for confirming the state in which the door 3 closes the opening 2 is provided, and when the confirmation switch 7 is on. Since the car 1 can be raised and lowered, the car 1 is located at a position corresponding to the opening 2 as long as the door 3 is not closed.
Cannot be moved up and down, and the handle provided on the door 3
25 is provided with a latch 26 for a handle which is a locking means different from the above-mentioned lock portion 4, and when the door 3 is closed, the latch 26 for the handle can be engaged with the latch receiver 27 for the handle, and the handle 25 is rotated to rotate the handle. Since the locking between the latch 26 for the handle and the latch receiver 27 for the handle is released, the lock portion 4 for automatically locking,
It can be double-locked with the handle latch 26 that is manually locked. Even when the lock portion 4 is unlocked, the handle 25 is manually rotated to rotate the handle latch 26 and the handle latch receiver. Unless you release the lock with 27
It is designed to be safe without the door opening accidentally.

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 car 1 so as to be able to move up and down. This basket 1 is basket 1
It is designed to be moved up and down by an elevating device (not shown) arranged below the floor. The car 1 is covered with a jacket 9. As the mantle 9, as shown in FIG. 3, a recess 10 is provided in a part of the building, and the car 1 is arranged in the recess 10 so as to be vertically movable. May be used as the outer shell 9, or the outer shell 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 2. 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 3a and the left and right sub doors 3b are used as the doors 3. 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. The main door rail 12 and the sub door rail 13 are provided above and below, respectively. The main door rail 12 and the sub door rail 13 are arranged side by side in the front and rear. The main door rails 12 have left and right main doors 3a, respectively.
And the left and right auxiliary doors 3b are attached to the auxiliary door rail 13 so that they can move freely. In the embodiment shown in FIG. 2, runners 14 are provided above the upper surfaces of the main door 3a and the sub-door 3b, respectively, and the runners 14 can travel freely on the main door rail 12 and the sub-door rail 13, respectively. Lower guides 15 that are attached and project downward from the lower surface portions of the main door 3a and the sub door 3b are attached to the lower main door rail 12 and the sub door rail 13 so that they can travel. 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. With this arrangement, when the left and right main doors 3a respectively open one of them, the endless rotation belt 16 rotates to open the other, and when either one of them closes, 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, as shown in FIGS. 8 and 9, a pushing projection 21 is provided on the main door 3a, and a pushing projection 22 is provided on the sub door 3b. When the push-in projection 21 pushes the push-in projection 22, 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 drawer means 20, for example, the main door 3a
The protruding protrusion 23 is projected on the main door 3a, the protruding protrusion 24 is protruded on the sub door 3b, and the closing protrusion 23 hits the protruding protrusion 24 when the sub door 3b is pulled out to close the main door 3a. When it comes to the closed position, the sub door 3b closes the space 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 is partially used in the push-in projection 2. With such a configuration, the left and right main doors 3a and the sub doors 3a and 3b are respectively placed in the left and right door pockets 11 when opened.
As shown in FIG. 9, 3b and 3b are housed by stacking them on top of each other. A handle 25 is provided on the main door 3a.
Is provided with a handle latch 26, and is engaged with a handle latch receiver 27 provided on the other main door 3a. When the handle 25 is rotated, the handle latch 26 is disengaged from the handle latch receiver 27. It has become.

In the present invention, the door 3 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.
A lock portion 4 is provided to lock the door 3 with the opening 2 closed. Then, the lock closing means 5 for performing the lock closing operation of the lock portion 4, and the lock portion 4 by the lock closing means 5 in the state where the car 1 is positioned at the opening 2.
There is provided a lock releasing means 6 for releasing the lock closing operation. That is, in the embodiment shown in detail in FIGS. 1, 2 and 5, the locking arm 30 is rotatably supported by the shaft 31 on the upper end of the side end of the one main door 3a. A tip portion of the lock arm 30 is projected from the side end surface of the main door 3a, and a lock portion 4 is provided at the protruding portion. The other end of the locking arm 30 is pulled by a spring 32 that serves as the lock insertion means 5, and the locking arm 30 is given a turning force in a fixed direction. The bearing part 33 is provided on the upper rear surface of the main door 3a.
An operation arm 34 rotatably supported is projected to a roller, and a roller 35 is rotatably attached to the tip end of the operation arm 34, and the lower portion of the operation arm 34 is a protrusion 36 of the locking arm 30.
Is in contact with. A latch portion 37 is provided on an upper portion of the side end of the other main door 3a, and serves as a lock closing means 5 when the door 3 is closed, that is, when the side ends of the main door 3a abut each other. The locking portion 4 of the locking arm 30 which is rotated by the above is locked to the latch portion 37 of the other main door 3a so that the closed state of the door 3 is locked. When the lock releasing actuating portion 38 is projected on the outer surface of the car 1, and when the car 1 is located at a position corresponding to the opening 2, the lock releasing actuating portion 38 is operated by the roller 35 of the operating arm 34.
The operating arm 34 is rotated from the state shown by the solid line in FIG. 1 to the state shown by the chain double-dashed line. By this rotation, the lower portion of the operating arm 34 pushes the protrusion 36 of the locking arm 30 to cause the locking arm 30
Is rotated as indicated by the chain double-dashed line in FIG. 1, whereby the lock portion 4 is unlocked from the latch portion 37, and the door 3 can be opened. In this state, the handle 25 can be operated to open the door 3. Therefore, the unlocking means 6 for unlocking the lock-in operation of the lock part 4 by the lock-in means 5 in the state where the car 1 is located in the opening 2 is provided with the unlocking operation part 38 and the operation arm 34.
It is composed by. Further, an operation projection 39 is projected outwardly on the upper side end of one main door 3a, and a cam 40 is rotatably provided on the upper side end of the other main door 3a. The cam 40 is urged to rotate by a torsion coil spring (not shown) in the direction of the arrow in FIG.
The main door rail 12 is provided with a confirmation switch 7 which is a limit switch, and the operating piece 41 of the confirmation switch 7 and the cam 40 face each other. When the door 3 is closed, the operation projection 39 pushes the cam 40 to rotate it, and the cam 40 pushes the operating piece 41 to turn on the confirmation switch 7 to confirm that the door 3 is closed. If the confirmation switch 7 is not turned on, electric power is not supplied to the electric circuit for moving the car 1 up and down, and the car 1 cannot move up and down.

The car 1 has an opening / closing opening facing the opening 2 of the outer jacket 9.
43 is provided. Further, a guide rail 44 is provided which extends over the front portion of the car 1 and both side portions of the car 1 provided with an entrance / exit opening 43, and the left and right doors 45 are movably attached to the guide rail 44. Here, the left and right doors 45 are each configured by rotatably connecting a plurality of door bodies 46 each having a narrow width in the left-right direction, and an upper traveling portion 47 protruding upward is provided on an upper surface portion of the door 45. A lower traveling section that is attached to the upper guide rail 44 so that it can travel freely and that protrudes downward on the lower surface of the door 45
48 is attached to the lower guide rail 44 so that it can travel freely.
Above the upper guide rail 44, an endless belt 49 for a door such as an endless belt or an endless chain is arranged along the upper guide rail 44. It is wound around the corner pulley 50. One of the left and right doors 45 is attached to the upper part of the door endless belt 49, and the other is attached to the lower part thereof by the fittings 51. By doing so, when one of the left and right doors 45 is opened / closed, the other door 45 is also opened / closed in conjunction with the opening / closing operation. Left and right doors here 45
When opened, it is pushed into a position along the left and right side surfaces of the car 1 and stored (see FIG. 12). The door 45 is provided with a handle 52, and this handle 52 may also be provided with a suitable locking means.

When the car 1 rides on the car 1, when the car 1 comes to the position corresponding to the opening 2, the unlocking means 6 is activated (that is, the unlocking operation part 38 rotates the operation arm 34) to operate. By the rotation of the arm 34, the lock arm 30 rotates against the spring which is the lock insertion means 5, and the lock portion 4 moves.
Is disengaged from the latch 37 and the lock is released. When one of the main doors 3a is opened by grasping the handle 25 in this state, the other main door 3a is opened in conjunction with this, and the left and right main doors 3a are further opened.
Pushes the sub door 3b by the pushing means 19, and the left and right main doors 3a and the left and right sub doors 3b are housed in the left and right door pockets 11, respectively. Next, when the handle 52 is grabbed by hand and one of the left and right doors 45 is opened, the other door 45 is also opened in conjunction with this, so that the car 1 enters the car 1 in this state. Next handle
When 25 is grasped by hand and one main door 3a is closed, the other main door 3a is closed and the left and right main doors 3a are interlocked.
Is pulled out and the sub door 3b is pulled out by the means 20 to fully close the opening 2. Next, grasp the handle 52 by hand and hold the door 45 on one side.
When is closed, the other door 45 is closed in conjunction with this and the entrance / exit opening 43 is fully closed. In this state, a car destination switch (not shown) for raising and lowering is operated to raise and lower the car 1.
In this case, when the opening 2 is closed by the door 3, the operation projection 39
Pushes the cam 40 to rotate it, pushes the actuating piece 41 by the cam 40 to turn on the confirmation switch 7, confirms that the door 3 is closed, and turns on the confirmation switch 7 to turn on the car 1. Since the electric circuit for moving up and down is supplied with power, the car 1 can be moved up and down by operating the destination switch when the door 3 is closed.

On the other hand, when leaving the car 1, the operation is performed in the reverse order. By the way, as described above, opening and closing of the other main door 3a and left and right sub-doors 3b is performed by opening and closing the one main door 3a, and opening and closing of the other door 45 is performed by opening and closing one door 45. In particular, when operating in a state where the user is in a wheelchair, when entering the wheelchair in the car 1 and opening and closing the main door 3a and the door 45 backward, either the center of the opening 2 or the left or right, Also, it suffices to move the hand from the center of the entrance / exit opening 43 to either the left or the right, which facilitates the operation.

In the above embodiment, the door 3 has the left and right main doors 3a and the left and right sub doors 3b. However, the present invention is not limited to this, and the left and right doors may be one, or It may be a type of door that opens on one side, or may be a type of door other than this.

In addition, in the elevator for home use, when the car 1 is raised or lowered on the third floor or above, there may be a passing floor. For example, when moving from the first floor to the third floor or from the third floor to the first floor, the second floor is the passing floor. In this case, when the car 1 passes through the second floor, the operation projection 39 provided on the car 1 hits the roller 35 of the operation arm 34 provided on the second floor to rotate the operation arm 34 and rotate the locking arm 30. In this case, the door 3 can be opened by moving the lock part 4 from the latch part 37 to temporarily unlock it, and in this case, the door 3 on the second floor can be opened.
It is dangerous to open the handle by operating the handle 25. Therefore, in such a case, as shown in FIG. 6 and FIG. 7, a solenoid 53, which allows the solenoid rod 5 to project freely, is provided on the passing floor,
When the destination switch for raising or lowering to the first floor or the third floor provided in the car 1 is turned on, the solenoid 53 provided on the second floor is energized and the solenoid rod 54 resists the spring 55 and the door 3
The door 3 is locked by being fitted into a lock hole 56 provided in the door 3, and even if the lock by the lock portion 4 is temporarily released when the car 1 passes, the door 3 cannot be opened. In the embodiment shown in the drawings, the protrusions 57 having the lock holes 56 are respectively projected on the upper portions of the rear side end portions of the left and right main doors 3a, and the protrusions of the left and right main doors 3a are closed when the left and right main doors 3a are closed.
57 are vertically overlapped with each other so that the lock holes 56 provided in each are communicated with each other in the vertical direction, and the solenoid rod 54 is inserted into the lock holes 56 communicated with each other in the vertical direction to be locked. Of course, in this case, turn on the destination switch to go upstairs in the car 1 or 2
When you turn on the switch for the floor, the solenoid on the second floor
53 is not energized, and the solenoid rod 54 is pulled up by the spring force of the spring 55, and the locking of the solenoid rod 54 with the lock hole 56 is released. The movement of the solenoid 53 may be reversed from that in the above embodiment. That is, normally, the solenoid rod 54 is fitted into the lock hole 56 and locked, and when the destination button or the landing button in the car 1 is pressed, the solenoid 53 is energized and the solenoid rod 54 is disengaged from the lock hole 56 so that the lock can be released. May be.

[Effects of the Invention] According to the present invention, as described above, a lock portion is provided for automatically locking the door when the door is closed, and the lock portion is locked when the car is positioned at the opening. Since the lock release means for automatically releasing the closing operation is provided, the door can be opened when the door is positioned at the opening, and the lock part can be opened when the door is separated from the opening. Is locked and locked securely, the door can not be opened and it is safe, and there is a confirmation switch to confirm the state that the door has closed the opening,
Since the car can be raised and lowered only when the confirmation switch is on, even if the car is located at the position corresponding to the opening, the car cannot be raised or lowered unless the door is closed, and the car remains open. Since the car does not move up and down, it is highly safe, and the handle provided on the door is provided with a handle latch which is a locking means different from the above-mentioned lock part, and the latch for the handle is latched when the door is closed. It can be locked to the handle latch holder, and the lock between the handle latch and the handle latch holder can be released by rotating the handle, so that the lock part that locks automatically and the handle that locks manually It is possible to double lock with the latch, and even if the lock part is unlocked, it is unnecessary unless the handle is manually held and rotated to release the lock between the handle latch and the handle latch receiver. And it serves as a safe without the door or open.

[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 same, FIG. 3 is a whole transverse sectional view, and FIG. 4 is a whole vertical sectional view of the same. FIG. 6 is a plan view of the lock portion of the same lock as above, FIG. 6 is a front view of the lock portion provided on the passage floor in the embodiment having the above passage floor, FIG. 7 is a sectional view of the above, and FIG. FIG. 9 is a schematic explanatory view showing a state in which the left and right main doors and sub doors are closed, FIG. 9 is a schematic explanatory diagram in a state in which the left and right main doors and sub doors are opened, and FIG. Is a schematic front view, FIG. 11 is a vertical sectional view of the same.
FIG. 12 is a sectional view of the door in an open state, and FIG. 13 is a schematic explanatory view of an endless belt for a door, where 1 is a car, 2 is an opening, 3 is a door, 4 is a lock part, and 6 is a lock. The release means, 7 is a confirmation switch.

Claims (1)

[Claims] 1. A lock that automatically opens and closes a door provided with an opening for entering and exiting a car on each floor, and a door that can be opened and closed at the opening, and which automatically locks the door when the door is closed. A lock release means for automatically releasing the lock-on operation of the lock part when the car is located at the opening part, and the handle provided on the door is a lock means different from the above lock part. A latch is provided, and when the door is closed, the handle latch can be freely locked to the handle latch receiver,
The latch of the handle and the latch of the handle are unlocked by the rotation of the handle, and a confirmation switch is provided to confirm the state where the door closes the opening. Only when the confirmation switch is on, the car can be moved up and down. Locking device for elevator doors.