JP2011162304A - Car fixing device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damaging of a mechanical engaging mechanism even if a door is opened by mistake when a car is ascending/descending. <P>SOLUTION: This car fixing device includes a movable engaging mechanism part (10) arranged on the car side and having a movable engaging piece (11) for moving to a projection position in a door opening state and moving to a retraction position in a door closing state, and an engaging object mechanism part (20) arranged on the landing hall side and having an engaging object piece (21) for mechanically preventing lifting of the car by engaging with the projected movable engaging piece. The engaging object mechanism part (20) includes an installation base (22) slidably attached with the engaging object piece and a rejection plate (28) having one end installed on the installation base and the other end installed on the tip of the engaging object piece, respectively rotatably, and moving the engaging object piece up to a retreat position of not colliding with the movable engaging piece from an engageable position by contacting with the tip of the movable engaging piece moved up to the projection position. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator car fixing device that prevents a car from going up and down beyond a relevel range when a car is open at a landing.

  A conventional elevator car fixing device has a configuration in which, when the car is opened, a car-side movable engaging element (protruding bar) is projected and engaged with a landing-side engaged element (receiver). By providing, there is what prevents the car from going up and down beyond the relevel range (see, for example, Patent Document 1). In this way, when the car is open at the landing, the car is prevented from moving up and down by mechanical engagement.

JP 2009-1387 A

However, the prior art has the following problems.
A conventional elevator car fixing device uses mechanical engagement means that, when the car is opened, causes the movable engagement element on the car side to protrude and engage with the engaged element on the landing side. However, if the car door is accidentally opened while the car is running at a position that is not the landing (that is, a position that deviates from the position where the movable engaging element and the engaged element are engaged), the protruding movable car-side There has been a problem that the combination member collides with the engaged member on the landing side.

  The present invention has been made to solve the above-described problems, and an elevator that prevents a mechanical engagement mechanism from being damaged even when a car door is accidentally opened while the car is being raised or lowered. The purpose is to obtain a cage fixing device.

  The elevator car fixing device according to the present invention is provided on the car side and moves to a protruding position when the car door is in an open state, and moves to a retracted position when the car door is in a closed state. A movable engagement mechanism having a mating member and a engaged member that is provided on the landing side and mechanically prevents the car from moving up and down by engaging with a movable engaging element that has moved to the protruding position while the car is at the landing position. An elevator car fixing device including an engaged mechanism portion having a mating member, wherein the engaged mechanism portion includes a mounting base on which the engaged child is slidably attached, and one end of the engaged child end. The other end is pivotally attached to the mounting base, and the engagement engages the movable engagement element by contacting the tip of the movable engagement element that has moved to the protruding position. Move from the possible position to the retracted position where it does not collide with the movable engagement element. In which and a reject plate.

  According to the elevator car fixing device of the present invention, the car-side movable engagement element protrudes and comes into contact with the evacuation plate provided in the engaged mechanism portion, so that the landing-side engaged element is protruded. Elevator car that prevents the mechanical engagement mechanism from being damaged even if the door of the car is accidentally opened while the car is moving up and down by providing a structure that can be retracted to a position that does not collide with the engagement element. A fixing device can be obtained.

It is a top view of the elevator car fixing device in Embodiment 1 of the present invention. It is a front view of the elevator car fixing device in Embodiment 1 of the present invention. FIG. 3 is a plan view of the elevator car fixing device according to Embodiment 1 of the present invention when the car is at the landing position and the car door is fully open. FIG. 3 is a front view of the elevator car fixing device according to the first embodiment of the present invention when the car is at a landing position and the door of the car is fully open. FIG. 5 is a plan view of the elevator car fixing device according to Embodiment 1 of the present invention when the car is at a position deviated from the landing and the car door is fully opened. FIG. 3 is a front view of the elevator car fixing device according to Embodiment 1 of the present invention when the car is at a position deviated from the landing and the car door is fully opened.

  Hereinafter, preferred embodiments of an elevator car fixing device of the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a plan view of an elevator car fixing device according to Embodiment 1 of the present invention, as viewed from the upper surface of the car. FIG. 2 is a front view of the elevator car fixing device according to Embodiment 1 of the present invention, as viewed from the side of the car. The elevator car fixing device according to the first embodiment includes a movable engagement mechanism portion 10 provided on the car 1 side and an engaged mechanism portion 20 provided on the landing side.

  The elevator car 1 is guided by rails 2 provided in the hoistway so as to be arranged on the left and right of the car 1. The car 1 includes a car frame 3 that supports the car 1 and a car door 4 provided in front of the car 1.

  The movable engagement mechanism section 10 includes a protruding rod 11, a link mechanism spring 12, a link mechanism 13, a cam 14, a linkage spring 15, and a linkage rod 16. On the other hand, the engaged mechanism portion 20 includes a catch 21, a catch mount 22, a catch spring 23, a latch 24, a latch spring 25, a wire 26, a hinge 27, a waste plate 28, a guide 29, and a detection switch. 30.

  Here, the protruding bar 11 corresponds to a movable engagement element that moves to a protruding position when the car door 4 is in an open state and moves to a retracted position when the car door 4 is in a closed state. Further, the receiver 21 corresponds to an engaged member that mechanically prevents the car from moving up and down by engaging with the protruding rod 11 that has moved to the protruding position. Further, the latch 24 and the latch spring 25 correspond to a holding portion for holding the catch 21 in the retracted position. Further, the receiving spring 23 and the wire 26 correspond to a holding force releasing unit for releasing the holding state of the receiving plate 21 by the holding unit. Further, the detection switch 30 corresponds to a position detector that detects that the receiver 21 is in the holding position.

Next, specific configurations of the movable engagement mechanism unit 10 and the engaged mechanism unit 20 according to the first embodiment will be described.
The protruding rods 11 are slidably attached to the left and right sides of the car frame 3 that supports the car 1. The link mechanism 13 provided with the link mechanism spring 12 is attached to the car frame 3, and both ends thereof are connected to the protruding rods 11 provided on the left and right.

  A car door 4 provided with a cam 14 is attached to an entrance of the car 1 so as to be openable and closable. An interlocking bar 16 provided with an interlocking spring 15 is attached to the car 1 between the cam 14 and the link mechanism 13.

  A receiver 21 installed at a position facing the protruding bar 11 is slidably attached to a receiver mounting base 22 attached to the rail 2 when the car 1 reaches the landing. A catch spring 23, a latch 24, and a latch spring 25 are attached to the catch mount 22. A wire 26 is attached to the latch 24.

  One end of a evacuation plate 28 is fixed above and below the tip of the catch 21 via a hinge 27. Further, the other end of the evacuation plate 28 is fixed to a guide 29 provided on the receiving metal mounting base 22. That is, one end of the evacuation plate 28 is rotatably attached to the tip of the receiver 21, and the other end is rotatably attached to the receiver attachment base 22. In addition, a detection switch 30 for detecting the position of the receiver 21 is provided at the end of the receiver 21.

  Next, the operation of the elevator car fixing apparatus configured as described above will be described. FIG. 1 and FIG. 2 used for the description of the specific configuration show a case where the car 1 is in the landing position and the car door 4 is in the fully closed state.

  On the other hand, FIG. 3 is a plan view of the elevator car fixing device according to Embodiment 1 of the present invention, in which the car 1 is the landing position and the car door is fully open. FIG. 4 is a front view of the elevator car fixing device according to Embodiment 1 of the present invention, in which the car 1 is the landing position and the car door is fully open.

  On the other hand, FIG. 5 is a plan view of the elevator car fixing device according to Embodiment 1 of the present invention when the car 1 is at a position shifted from the landing and the car door is fully opened. FIG. 6 is a front view of the elevator car fixing device according to the first embodiment of the present invention when the car 1 is at a position deviated from the landing and the car door is fully opened.

  As shown in FIGS. 3 and 4, when the car door 4 is opened with the car 1 landing on the landing, the cam 14 pushes the interlocking rod 16 in the direction opposite to the doorway of the car 1. The link mechanism 13 is pushed by the interlocking rod 16, and the protruding rod 11 jumps out to the left and right by the deformation of the link. As a result, the protruding bar 11 moves from the retracted position as shown in FIGS. 1 and 2 to the protruded position as shown in FIGS. 3 and 4, so that the receiver 21 provided on the landing side is provided. Engage with.

  In this way, when the car 1 is at the landing position of the landing and the car door 4 is in the fully open state, the mechanical engagement is performed, so that the relevel range is exceeded by some failure. It is possible to prevent the car 1 from going up and down.

  When the car door 4 is closed, the link mechanism spring 12 and the interlocking spring 15 return to the original deformation of the link. The protruding bar 11 retracts to the left and right to return to the retracted position, and the interlocking bar 16 also returns to the original position. Return to position. As a result, when the car door 4 is in the fully closed state, the mechanical engagement is disengaged and the protruding rod 11 remains in the retracted position, so that the protruding rod 11 does not interfere with the engaged mechanism portion 20.

  On the other hand, as shown in FIGS. 5 and 6, when the car door 4 is accidentally opened while the car 1 is moving up and down (that is, when the car 1 is not in the landing position of the landing), In the same manner, the protruding rod 11 jumps out to the left and right and moves to the protruding position. However, in the engaged mechanism portion 20 according to the first embodiment, when the tip of the protruding bar 11 comes into contact with the evacuation plate 28, the receiver 21 is in the normal position (the engagement as shown in FIGS. 3 and 4). (Equivalent to possible position).

  That is, the evacuation plate 28 comes into contact with the tip of the protruding rod 11 that has moved to the protruding position, so that the position of the receiver 21 is changed from the engageable position where it engages with the protruding rod 11 to the position where it does not collide with the protruding rod 11. Work to move to. As a result, even when the car 1 moves up and down with the protruding bar 11 protruding from the car 1, the protruding bar 11 can be prevented from colliding with the receiving metal 21.

  Further, when the tip of the protruding bar 11 comes into contact with the evacuation plate 28, the latch 24 is operated by the force of the latch spring 25 when the catch 21 is retracted to the left and right from the engageable position and moved to the retracted position. The receiver 21 is configured to be held at the retracted position. Accordingly, even when the car 1 passes through the landing position with the protruding bar 11 in the protruding position, the receiving bar 21 is kept in the retracted state, so that the protruding bar 11 is prevented from colliding with the receiving bar 21. can do.

  Further, when the tip of the protruding bar 11 contacts the evacuation plate 28, the state where the catch 21 is moved from the engageable position to the retracted position and is held by the latch 24 can be detected by the detection switch 30. . As a result, the elevator travel control unit can stop the car 1 based on the detection result of the detection switch 30.

  Further, after the car 1 is stopped in this manner, the force of the latch spring 25 can be removed by operating the wire 26. As a result, the latch 24 is released, and the catch 21 can be returned to the engageable position, which is the original position, by the force of the catch spring 23.

  As described above, according to the first embodiment, the car-side movable engaging element (protruding rod) protrudes and comes into contact with the evacuation plate provided in the engaged mechanism portion, so that the landing-side engaged element ( The receiving member is retracted to a position where it does not collide with the protruding movable engagement element. As a result, even when the car door is accidentally opened in a state where the car is in a position outside the range where the movable engaging element on the car side and the engaged element on the landing side can be engaged, it protrudes. It is possible to prevent the movable engaging element from colliding with the engaged element.

  Furthermore, it has a mechanism for holding the engaged element once moved to the retracted position in that state, a mechanism for releasing the held state, and a configuration capable of detecting the held state. Therefore, even when the car door is accidentally opened while the car is moving up and down, the mechanical engagement mechanism can be prevented from being damaged.

  Furthermore, when the holding state is detected, the traveling control unit of the elevator can stop the raising and lowering of the car based on the detection result. The holding state can also be announced. Further, by releasing the holding state and returning the engaged child to the original state, it is possible to easily return to the state in which the engagement mechanism that mechanically stops the raising / lowering operation of the car is effectively operated.

  1 car, 2 rails, 3 car frames, 4 car doors, 10 movable engagement mechanism, 11 projecting rod (movable engagement element), 12 link mechanism spring, 13 link mechanism, 14 cam, 15 interlocking spring, 16 Interlocking rod, 20 engaged mechanism part, 21 receiver (engaged child), 22 receiver mounting base (mounting base), 23 receiver spring, 24 latch, 25 latch spring, 26 wire, 27 hinge, 28 Exhaust plate, 29 guide, 30 detection switch (position detector).

Claims (3)

A movable engagement mechanism having a movable engagement element that is provided on the car side, moves to a protruding position when the car door is in an open state, and moves to a retracted position when the car door is in a closed state;
An engaged mechanism portion having an engaged element that is provided on the landing side and mechanically prevents the car from moving up and down by engaging with the movable engaging element that has moved to the protruding position while the car is at the landing position. An elevator car fixing device comprising:
The engaged mechanism portion is
A mounting base on which the engaged element is slidably mounted;
One end is rotatably attached to the tip of the engaged element, the other end is rotatably attached to the mounting base, and comes into contact with the tip of the movable engaging element moved to the protruding position. An elevator car fixing device comprising: an evacuation plate that moves an engagement element from an engageable position that engages with the movable engagement element to a retracted position that does not collide with the movable engagement element. The elevator car fixing device according to claim 1,
The engaged mechanism portion is
A holding unit that holds the engaged element moved to the retracted position in the retracted position;
An elevator car fixing device, further comprising: a holding force releasing unit that releases the holding state by applying an external force to the holding unit and restores the engaged element to the engageable position. The elevator car fixing device according to claim 2,
The engaged mechanism portion is
An elevator car further comprising a position detector for detecting a state in which the engaged element is in the retracted position so that a controller that performs elevator elevator control can stop the movement of the car. Fixing device.

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