JP6183952B2 - Device for canceling the operation of the door-opening travel protection device - Google Patents

Description

  The present invention relates to a release device for releasing an operation of a door-open travel protection device provided in an elevator device.

  In recent years, an elevator apparatus has been required to include a door-open travel protection device. The door-opening travel protection device automatically stops the car if the elevator drive and control devices fail and the car goes up and down before all doorways of the car and hoistway are closed. Device.

  When the door-opening travel protection device is activated, the worker releases the door-opening travel protection device and restores it. Release of the operation of the door-opening travel protection device is performed by an operator operating a release operation unit of a release device that releases the operation of the door-opening travel protection device (see, for example, Patent Document 1).

International Publication No. 11/061819 Pamphlet

  However, if a dedicated release operation unit is provided, an installation space for the release operation unit is required.

  This invention is made | formed in view of the said situation, The place made into the objective is providing the cancellation | release apparatus of the operation | movement of a door-opening travel protection apparatus from which the installation space of a cancellation | release operation part becomes unnecessary.

  The present invention is a device for canceling the operation of the door-opening travel protection device provided in an elevator device having a brake operation confirmation device and a door-opening travel protection device, comprising a release control unit and a release operation unit. The release operation unit is also used as an operation unit for confirming the brake operation of the confirmation device for brake operation, and the operation unit for confirming the brake operation as the release operation unit is operated by a predetermined operation. Accordingly, the release control unit releases the operation by the door-open travel protection device.

  Moreover, it is preferable that the said operation part for the confirmation of the brake operation | movement as the said release operation part is accommodated in a housing | casing provided with the door which can be locked and unlocked.

  According to the release device for the operation of the door-opening travel protection device of the present invention, the release operation unit is also used as the operation unit for confirming the brake operation. Installation space for the operation unit is not required.

It is a schematic block diagram of the elevator apparatus of this embodiment. It is a perspective view of the elevator apparatus of this embodiment. It is a perspective view of the drive device of this embodiment.

  The present invention is a device for canceling the operation of the door-opening travel protection device 7 provided in the elevator apparatus having the brake operation confirmation device 6 and the door-opening travel protection device 7. The release device includes a release control unit and a release operation unit. The release operation unit is also used as an operation unit 62 for confirming the brake operation of the brake operation confirmation device 6. When the operation unit 62 for confirming the brake operation as the release operation unit is operated by a predetermined operation, the release control unit releases the operation by the door-opening travel protection device 7.

  Moreover, it is preferable that the operation part 62 for confirming the brake operation as the release operation part is housed in a housing (control box 40) having a lockable door.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The elevator apparatus of this embodiment is an elevator apparatus for rope-type medium and low-rise apartment houses. As shown in FIGS. 1 and 2, the elevator device includes a hoistway 10, a car 2, a drive device 3, a control device 4, a brake device 5, a brake operation confirmation device 6, and a door-open running. And a protection device 7.

  In addition, although the elevator apparatus of this embodiment is installed in a low-rise building, it may be installed in a high-rise building and the number of floors of the building is not limited. Moreover, it may be used not only for apartment buildings but also for detached houses, so-called office buildings and other miscellaneous buildings, and the use of the buildings is not limited. Furthermore, although the elevator apparatus of this embodiment is a rope type, a hydraulic jack type elevator apparatus etc. may be sufficient and it is not specifically limited.

  As shown in FIG. 2, the hoistway 10 is provided over the lower floor 11 and the upper floor 12. The hoistway 10 has a length in the vertical direction. The lower end of the hoistway 10 is disposed in a recess (not shown) recessed from the lower surface of the lower floor 11. Further, the upper end of the hoistway 10 is disposed at substantially the same height as the ceiling of the upper floor 12. The hoistway 10 is provided continuously over the entire length from the lower end to the upper end.

  An entrance / exit frame 13 is fixed to the hoistway 10. The entrance / exit frame 13 is provided with an openable / closable outer door 14 and a door opening device 15 for opening and closing the outer door 14. The outside of the entrance / exit frame 13 serves as an elevator landing 16, and the control device 4 is arranged in parallel at the elevator landing 16 on the upper floor 12.

  As shown in FIGS. 1 and 2, the car 2 is formed of a box and is a rectangular parallelepiped box in the present embodiment, but the shape is not particularly limited. The car 2 is movable up and down along the hoistway 10. The car 2 includes an entrance / exit 21 that penetrates the inside / outside, an inner door 22 that can be opened / closed at the entrance / exit 21, an opening / closing drive unit 23 that drives the inner door 22, and an opening / closing control unit (not shown). Yes.

  The opening / closing control unit is mounted on the upper end of the car 2. The open / close control unit is electrically connected to the open / close drive unit 23. The opening / closing control unit controls the opening / closing drive unit 23. Specifically, the opening / closing control unit opens and closes the inner door 22 when the car 2 arrives at a predetermined floor, and opens and closes the inner door 22 so as to keep the inner door 22 closed during the raising / lowering operation of the car 2. The unit 23 is controlled.

  The control device 4 controls the entire elevator device. In the present embodiment, the control device 4 includes a microcomputer, and performs control by executing a control program. The control device 4 mainly controls the drive device 3 and the brake device 5 for the raising / lowering operation of the car 2. The control device 4 is provided not on the car 2 side but on the hoistway 10 side (fixed side). In the present embodiment, as shown in FIG. 2, the elevator landing 16 (in the present embodiment, on the upper floor 12). It is housed in a control box (housing) 40 installed at a location facing the elevator hall 16). The control box 40 includes a door that can be opened and closed from the elevator hall 16, and the door can be locked and unlocked by inputting a key or a password.

  As shown in FIG. 2, the door opening device 15 opens and closes the outer door 14. The door opening device 15 is configured to drive the outer door 14 in conjunction with the movement of the inner door 22. When the car 2 arrives at the entrance / exit frame 13, the opening / closing control unit mounted on the car 2 controls the opening / closing drive unit 23 to open the inner door 22, and the door opening device 15 provided at the entrance / exit frame 13. However, the outer door 14 is opened in conjunction with the opening operation of the inner door 22.

  As shown in FIGS. 1 and 2, a driving device 3 is provided at the upper end of the hoistway 10. The drive device 3 serves as a drive source for raising and lowering the car 2 along the hoistway 10. The driving device 3 includes a hoisting machine 31 and a rope 32 that connects the hoisting machine 31 and the car 2.

  The rope 32 is comprised by the wire which consists of steel wires etc., for example. One end of the rope 32 is connected to the upper end of the car 2 and the other end is connected to a weight 33. An intermediate portion of the rope 32 is wound around a winding machine 31 described later. The material of the rope 32 is not limited to steel wire.

  The hoisting machine 31 moves the car 2 up and down via the rope 32. As shown in FIGS. 1 and 2, the hoisting machine 31 includes a motor 34 and a sheave 35. The motor 34 is a vertical motor with a reduction gear having a length in the vertical direction. The sheave 35 is attached to the output shaft of the motor 34. The sheave 35 has a circular shape when viewed from the front, and its center is fixed to the output shaft of the motor 34. A rope 32 is hung on the sheave 35.

  The brake device 5 is for braking the vertical movement of the car 2, and two independent devices (three or more are also possible) are provided. In the present embodiment, as shown in FIG. 1, a brake is pressed against the first brake device 51 that holds and brakes a brake disk provided on the shaft of the motor 34 of the hoist 31 and the sheave 35 so as to perform braking. And a second brake device 52. The brake device 5 (51, 52) is always operated, is controlled by the control device 4, and is also controlled by the door-opening travel protection device 7.

  In addition, as the brake device 5, a brake device that holds and brakes the rope 32 may be used, and the braking method of the brake device 5 is not limited. As such a brake device 5, various existing brake devices (for example, JP2011-26095A, JP2010-70381A, etc.) can be used as appropriate, and are not particularly limited. The detailed explanation is omitted.

  The brake operation confirmation device 6 is for performing a brake operation confirmation test for confirming whether or not the brake device 5 operates normally, and as shown in FIG. 1, a control unit 61 for confirming the brake operation. And an operation unit 62 for confirming the brake operation. In the present embodiment, the control device 4 includes the control unit 61 as a part of its function, but the control unit 61 may be provided separately from the control device 4 and connected to the control device 4.

  The brake operation confirmation test confirms whether or not a predetermined braking performance is obtained when the brake device 5 (51, 52) performs a braking operation. The predetermined braking performance is mainly evaluated by the amount of movement of the car 2 from when the brake device 5 (51, 52) starts the braking operation until the car 2 stops. The detailed explanation is omitted. The brake operation confirmation test is executed by operating the operation unit 62.

  When the operation unit 62 is operated, the control unit 61 recognizes the operation and performs a brake operation confirmation test. As shown in FIG. 1, the operation unit 62 according to the present embodiment includes a push button, and the first switch 63 and the second switch 64 are turned on when the push button is pushed and turned off when the push button is not pushed. Consists of two switches. The operation unit 62 is not limited to such a switch, and the number is not limited.

  The first switch 63 is an operation unit 62 for confirming the brake operation of the first brake device 51, and the second switch 64 is an operation unit 62 for confirming the brake operation of the second brake device 52. It has become. The first switch 63 is an operation unit for starting a brake operation confirmation test, and the second switch 64 is a brake operation confirmation test in either the first brake device 51 or the second brake device 52. It may be an operation unit for selecting whether or not to perform. In any case, the brake operation confirmation test is performed by performing a predetermined operation on both the first switch 63 and the second switch 64 (one in some cases). For example, the predetermined operation is defined by the number of times the worker presses once, twice or more times, prescribed by the pressing time, prescribed by the pressing interval, or a combination thereof. It is prescribed.

  In the door-opening travel protection device 7, the elevator car 3 and the control device 4 fail, and the car 2 is closed before the car 2 and the doors (22, 14) of all the entrances 21 of the hoistway 10 are closed. It is a safety device that automatically stops the car 2 when it goes up and down. As shown in FIG. 1, the door-open travel protection device 7 includes a brake device 5, a door-open travel protection circuit 71, a specific distance sensing device 72, a car door switch 73, and a landing door switch 74. It is.

  The door-opening travel protection circuit 71 is independent from the control device 4 and includes a microcomputer, and performs control by executing a door-opening travel protection program. The door opening travel protection circuit 71 is provided in the car 2.

  The specific distance sensing device 72 is a device that detects when the car 2 moves up and down a predetermined distance (for example, 1000 mm) from a predetermined stop position of the elevator hall 16. As such an apparatus, various existing apparatuses (for example, JP 2013-107744 A) can be used as appropriate, and are not particularly limited, and detailed description thereof is omitted.

  The car door switch 73 detects whether or not the inner doors 22 are in a closed state. When a plurality of inner doors 22 are provided, the car door switches 73 are provided on all the inner doors 22. The landing door switch 74 detects whether or not the outer door 14 is in a closed state, and is provided in all the outer doors 14. As an apparatus for detecting whether or not such a door is closed, various existing apparatuses can be used as appropriate and are not particularly limited, and detailed description thereof is omitted.

  The operation of the door opening travel protection device 7 will be described. If all the car door switches 73 and the landing door switches 74 have not detected the closed state, and the specific distance sensing device 72 detects the movement of the car 2 from a predetermined stop position, The open travel protection circuit 71 operates the brake device 5. Thereby, the movement of the car 2 in the door open state is stopped, and a serious accident is avoided.

  When the door-opening travel protection device 7 is activated, it is necessary for the worker to release the operation of the door-opening travel protection device 7 and restore it. Release of the operation of the door-opening travel protection device 7 is performed by the operator operating the release operation part of the device for canceling the operation of the door-opening travel protection device 7. In the present embodiment, the door opening travel protection circuit 71 has a control function as the release device. The operation unit 62 (second switch 64 in the present embodiment) also serves as the release operation unit of the release device.

  The predetermined operation in this case is also defined by the number of times that the worker presses once, twice or more times, prescribed by the pressing time, prescribed by the pressing interval, etc. Are defined in combination. However, the predetermined operation in this case is preferably different from the predetermined operation for the brake operation confirmation test.

  According to the above configuration, since the operation unit 62 also serves as the release operation unit of the release device, a dedicated release operation unit in the release device is not necessary. Further, the installation space for the release operation unit, which is necessary when a dedicated release operation unit is provided, is not necessary. Thereby, compared with the case where the said cancellation | release operation part for exclusive use is provided, the effort and cost reduction in design and manufacture of an elevator apparatus are achieved. In particular, when the door-opening travel protection device 7 is provided as a retrofit to an elevator device that is not provided with the door-opening travel protection device 7, the release operation unit needs to be installed at a place where an operator can operate. In such a case, the existing operation unit 62 can be used without providing a new switch or the like as the release operation unit, and there is a great advantage.

  Further, it is not necessary for the worker to have a separate tool for releasing the operation of the door-opening travel protection device 7, and the work can be simplified and speeded up.

DESCRIPTION OF SYMBOLS 10 Hoistway 11 Lower floor 12 Upper floor 13 Entrance frame 14 Outer door 15 Door opening device 16 Elevator hall 2 Car 21 Entrance 22 Inner door 23 Opening and closing drive part 3 Drive device 31 Hoisting machine 32 Rope 33 Weight 34 Motor 35 Sheave 4 Control Device 40 Control box 5 Brake device 51 Second brake device 52 Second brake device 6 Brake operation confirmation device 61 Brake operation confirmation control unit 62 Brake operation confirmation operation unit 63 First switch 64 Second switch 7 Door-open travel protection device 71 Door-open travel protection circuit 72 Specific distance sensing device 73 Car door switch 74 Landing door switch

Claims (2)

A device for releasing the operation of the door-opening travel protection device provided in an elevator device having a brake operation confirmation device and a door-opening travel protection device,
A release control unit, and a release operation unit,
The release operation unit is also used as an operation unit for confirming the brake operation of the confirmation device for the brake operation,
The door opening travel characterized in that the release control unit releases the operation by the door opening travel protection device when the operation unit for confirming the brake operation as the release operation unit is operated by a predetermined operation. Release device for activation of the protective device.   The operation release device for the door-opening travel protection device according to claim 1, wherein the operation unit for confirming the brake operation as the release operation unit is housed in a housing having a lockable door. .

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