JP5730365B2 - Elevator equipment - Google Patents

Description

  Embodiments described herein relate generally to an elevator apparatus that prevents a car from opening and closing.

  If the elevator travels with the door open, the possibility of an accident increases. As an example of preventing such an accident caused by opening the door, a double brake safety device called a rope gripper is activated to fix the rope when a door opening state is detected and a car movement exceeding a certain level is detected. Thus, a technique for preventing the elevator from being opened is proposed.

JP 2007-55691 A JP 2009-154988 A

  Thus, in order to prevent door-opening travel, it is necessary to electrically detect the double brakes of the hoisting machine and the movement of the car. However, these devices are large-scale and difficult to apply to existing models.

  The problem to be solved by the present invention is to provide an elevator apparatus that can reliably prevent door-opening travel with a simple structure and can be easily applied to existing facilities.

An elevator apparatus according to an embodiment of the present invention includes a sliding door type door that opens and closes a platform and a landing on each floor, and a hold door that opens and closes a landing side entrance. A convex portion for engagement provided at a lower portion of the vehicle, and a lower side portion of a car-side entrance / exit, and when the hold door is in a fully closed state, a concave portion is provided at a position where the convex portion can be loosely fitted, When the elevator is allowed to move up and down by the loose fitting of the concave portion and the convex portion, and the door is in a state other than a fully closed state, the convex portion is removed from the position where the concave portion and the concave portion can be freely fitted. And a locking member that engages with the convex portion and locks the rising of the car.

1 is an overall configuration diagram of an elevator apparatus according to an embodiment of the present invention. It is a side view which shows the principal part structure of the elevator apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the principal part structure of the elevator apparatus which concerns on one Embodiment of this invention. It is a top view which shows the principal part structure of the elevator apparatus which concerns on one Embodiment of this invention. It is a side view which shows the principal part structure of the elevator apparatus which concerns on other embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the basic configuration of the elevator apparatus according to this embodiment will be schematically described with reference to FIG. In FIG. 1, an elevator apparatus 11 includes a passenger car 13 and a counterweight 14 provided in a hoistway 12 so as to be able to be raised and lowered. The car 13 and the counterweight 14 are connected by a main rope 15 wound around a main sheave 21 of a hoisting machine 20 provided in a machine room 19 or the like above the hoistway 12, and are driven up and down in a fishing bottle shape. Is done. In the elevator apparatus 11, the drive of each part is controlled by the control panel 18, and the car 13 can be moved to a landing 17 on an arbitrary destination floor and landed.

Sliding door type doors 26 are provided at the entrance / exit 25 between the car 13 and each floor platform 17 so as to be openable and closable. The door 26 is composed of a hall door 26A provided on each floor landing 17 side, the car door 26B provided on the car 13 side. As shown in FIGS. 2 and 3, a hole sill 27 and a car sill 28 are provided below the hold door 26A and the car door 26B, respectively. The hole sill 27 is provided at the lower side portion of each landing side entrance 25A, slidably engages with an engagement piece (not shown) provided at the lower side of the hold door 26A, and guides the hold door 26A in the opening / closing direction along the panel surface. To do. The car sill 28 is provided at the lower side portion of the car side entrance 25B, slidably engages with an engagement piece (not shown) provided at the lower side of the car door 26B, and the car door 26B is opened and closed along the panel surface. To guide.

  As shown in FIG. 2, a roller 30 is provided on the upper hanger portion of the car door 26B, and is supported on a rail 31 provided on the upper side of the car side entrance 25B so as to be able to roll. The upper hanger portion of the car door 26B is also connected to a door opening / closing mechanism (not shown) and is driven to open and close in the direction along the panel surface of the car door 26B. The upper part of the hold door 26A is also configured to be openable and closable with respect to the hall side entrance 25A by a support mechanism (not shown) formed on the upper side of the hall side entrance 25A.

  The hold door 26A has an interlock mechanism (not shown) and is locked so as to maintain a normally closed state. This interlock mechanism has an interlock roller, and when the car 13 is landed, the interlock roller is engaged with an engagement mechanism (not shown) on the side of the car door 26B, thereby releasing the locked state and opening operation. It becomes possible. In this state, when the car door 26B is opened and closed, the hold door 26A is also driven by the engagement mechanism described above, and the car door 26B is driven to open and close.

  Here, in the present invention, in order to prevent the door from opening, an engaging convex portion 33 is provided on the door 26 side, and when the door 26 is in a fully closed state, a concave portion 34 that can be loosely fitted to the convex portion 33 is provided. The latching member 35 which has is provided. When the door 26 is in the fully closed state, the elevator 13 is allowed to move up and down by loosely fitting the concave portion 34 and the convex portion 33. Further, when the door 26 is in a state other than the fully closed state, the raised portion 33 is engaged with the locking member 35 so that the raising / lowering of the car 13 is locked.

  In this embodiment, the door 26 provided with the engaging convex portion 33 is a holder 26A, and as shown in FIGS. 2 and 3, the engaging convex portion 33 is formed above and below the holder 26A. Are provided respectively. Further, in this embodiment, as shown in FIG. 2, the locking members 35 are provided on the upper side and the lower side of the car side entrance 25B, respectively.

Since the engaging convex portion 33 engages with the locking member 35 on the side of the car 13 to lock the raising / lowering of the car 13, a large load is applied when engaging with the locking member 35. Join. For this reason, the convex part 33 ensures sufficient intensity | strength, such as attaching firmly to the reinforcement part of the door panel of the holder 26A. Further, a hooking structure or the like is provided between the door sill 27 so that the door panel is not lifted and removed from the sill groove. Furthermore, if the load cannot be supported by one convex portion 33 due to the size of the car 13, the required number of convex portions 33 is provided. For example, in the case of a double door, various modifications can be made such as providing the same convex portion 33 on the opposite door panel.
Here, as shown in FIG. 2, the locking member 35 provided on the upper side portion of the car-side entrance / exit 25B is attached from the upper side portion of the entrance / exit 25B toward the hold door 26A. Moreover, the locking member 35 provided in the lower side part of the entrance / exit 25B points out the edge part which opposes the hole sill 27 of the car sill 28 at predetermined intervals, as shown in FIG.2, FIG3 and FIG.4. As described above, the engaging member 35 is provided with the concave portion 34 at a position where it can be loosely engaged with the engaging convex portion 33 when the hold door 26A is in the fully closed state.

This recess 34, during the lifting operation of the car 13, use those provided as a space to avoid inter- locking roller of the interlock mechanism (not shown) provided in the hall door 26A side. That is, as described above, the interlock roller is engaged with the engagement mechanism on the car side when the car 13 is landed to release the locked state of the hold door 26A. It is provided in a state facing the car side 13.

  Here, the distance between the hall sill 27 on the landing 17 side and the car sill 28 on the car 13 side is usually about 25 to 30 mm due to structural limitations. However, since it is not preferable that such a relatively wide space exists in the floor portion of the entrance / exit 25, the portion that becomes the floor of the entrance / exit 25, that is, the edge portion of the car sill 28 that faces the hole sill 27, The hole sill 27 is extended to the side (or a block piece is added) so that the distance from the hole sill 27 is about 10 mm. However, if the distance is narrow in this way, the interlock roller provided in a state of facing the car side 13 from the hold door 26A will collide with the edge of the car 28 during the raising / lowering operation of the car 13, In order to avoid this, a recessed space is formed at the edge of the car sill 28.

  Therefore, in this embodiment, the recessed space for avoiding the interlock roller is used as the recessed portion 34 for preventing the door from opening.

  When the car 13 is landing, the recess 34 is loosely fitted with the projecting portion 27a formed on the hole sill 27 side as shown in FIGS. Is maintained at 10 mm.

  FIGS. 3 and 4 show the locking member 35 provided in the car sill 28 on the lower side of the car-side entrance 25B, but the locking attached to the upper side of the entrance 25B shown in FIG. The member 35 is also provided with the recess 34 in the positional relationship described above.

  In the above configuration, it is assumed that the car 13 reaches the landing 17 on a certain floor, and the hold door 26A and the car door 26B are both open. At this time, the engaging convex portion 33 provided on the holder 26A is disengaged from the position where it can be loosely fitted with the concave portion 34 as shown in FIG. 3 (solid line portion) and FIG.

  In this state, when the car door 26B and the hold door 26A are fully closed and the car 13 is moved toward the next destination floor, the convex portion 33 provided on the hold door 26A As shown by the recesses 34 of the locking member 35 provided in the respective parts and the lower side part and the broken line in FIG. For this reason, even if the car 13 moves up and down, the concave portion 34 of the locking member 35 passes in a loosely fitted state with respect to the convex portion 33 and allows the car 13 to move up and down.

  On the other hand, when both the car door 26B and the hold door 26A are in the open state, when the so-called door-opening traveling in which the car 13 is raised or lowered for some reason, such as a malfunction of the brake device, the locking member The movement of the car 13 is locked by the engagement between the projection 35 and the projection 35. That is, in the state where the hold door 26A is opened, as shown in FIG. 3 (solid line) and FIG. 4, the engaging protrusion 33 provided on the hold door 26A is disengaged from the recess 34 of the locking member 35. To do. Therefore, when the car 13 is raised, the upper surface of the locking member 35 (the edge of the car sill 28) provided on the lower side of the car 13 is for engagement provided on the lower part of the hold door 26A shown in FIG. The projection 33 is brought into contact with and engaged with the projection 33 to prevent its rise. Further, when the car 13 is lowered, the lower surface of the locking member 35 provided on the upper side of the car 13 is brought into contact with and engaged with the engaging convex part 33 provided on the upper part of the hold door 26A. The descent is prevented. That is, door-opening travel is reliably prevented.

  In this way, when the door is opened, the car 13 can be reliably moved with a simple structure of the engagement relationship between the convex portion 33 provided on the hold door 26A and the locking member 35 provided on the car 13 side. Therefore, it is possible to prevent serious accidents from occurring. Moreover, since it can respond also to the existing elevator apparatus by additional processing, such as installation of the convex part 33, or modification, it becomes possible to give a door opening travel prevention function easily to the existing equipment.

  In addition, at the time of maintenance of an elevator apparatus, the operation | movement which moves the passenger car 13 in the state which opened the door may be performed. In this case, once the door is fully closed in the landing state, the car 13 is moved so that its locking member 35 is at or above the engagement position with the convex portion 33, and then the door is opened for maintenance. Can be opened. For this reason, although some restrictions arise, the maintenance work as usual can be implemented.

  In the above embodiment, the convex portions 33 are provided on the upper and lower portions of the hold door 26A, respectively, but only one may be provided on the intermediate portion in the height direction of the hold door 26A as shown in FIG. In this case, the locking member 35 provided on the upper side portion of the car 13 or the locking member 35 provided on the lower side portion engages with the convex portion 33 provided in the intermediate portion in the height direction of the hold door 26A. The moving distance of the car 13 is larger than that in the case of FIG. 2, but the movement of the car 13 can be surely prevented by the engagement of the convex portion 33 and the locking member 35, so that a serious accident does not occur. Safety can be ensured.

  Moreover, in the said embodiment, although the convex part 33 was provided in the holder 26A provided in each floor landing side, and the latching member 35 was provided in the car 13 side, you may make this relationship reverse. That is, the convex portion 33 may be provided on the car door 26B on the car 13 side, and the locking member 35 may be provided on the upper side and the lower side of each floor landing side entrance 25A.

  Further, the convex portion 33 and the locking member 35 may be additionally processed by retrofitting to existing equipment. These additional processes can be easily performed.

  Although several embodiments of the present invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 12 ... Hoistway 13 ... Ride car 17 ... Boarding area 25 ... Boarding gate 25A ... Boarding side boarding gate 25B ... Car side boarding gate 26 ... Door 26A ... Hold door 26B ... Car door 33 ... Convex convex part 34 ... Concave part 35 ... Locking member

Claims (3)

A sliding door type door that opens and closes the entrance / exit between the platform and each floor platform provided in the hoistway so as to be movable up and down,
A convex portion for engagement provided at a lower portion of the hold door that opens and closes the landing side entrance and exit ,
When the hold door is in a fully closed state, a recess is provided at a position where it can be loosely fitted to the convex portion, and the loose fitting between the concave portion and the convex portion results in the loose fitting. Allowing the elevator to move up and down, and with the door in a state other than fully closed, if the convex part is out of a position where it can be loosely fitted with the concave part, it engages with the convex part to raise the car. A locking member for locking;
An elevator apparatus comprising: A sliding door type door that opens and closes the entrance / exit between the platform and each floor platform provided in the hoistway so as to be movable up and down,
A convex portion for engagement provided on an upper portion of the hold door that opens and closes the landing side entrance and exit,
When the hold door is in the fully closed state, a concave portion is provided at a position where it can be loosely fitted with the convex portion, and the loose fitting between the concave portion and the convex portion results in the loose fitting. Allowing the elevator to move up and down, and with the door being in a state other than fully closed, if the convex part is out of a position where it can be loosely fitted with the concave part, it engages with the convex part to lower the car. A locking member for locking;
An elevator apparatus comprising: The elevator apparatus according to claim 1 or 2 , wherein the convex part and the locking member are additionally processed by retrofitting to an existing facility .

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