JP2007320735A - Entrance/exit device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an entrance/exit device for an elevator capable of closing a clearance formed between a landing sill and a car sill of the elevator by a simple constitution and low cost. <P>SOLUTION: The entrance/exit device for the elevator is provided with the landing sill 11 provided on a landing of the elevator and guiding opening/closing action of a door 10 of the landing; a cam 21 provided on a hoistway fixed body near the landing; the car sill 6 provided on the car of the elevator and guiding opening/closing action of the door 5 of the car; a roller 19 provided on the car and guided to the cam 21 by lifting of the car; and an auxiliary sill 13 provided on the car and interlocked with the roller 19. Thereby, the auxiliary sill 13 is always arranged with a predetermined clearance with the landing sill 11 on a vertical projection surface and is moved to the landing side by guiding the roller 19 to the cam 21. It is arranged between the landing sill 11 and the car sill 6 when the car sill 6 is arranged at same height as the landing sill 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an elevator doorway apparatus provided with an auxiliary sill that closes a gap formed between an elevator hall sill and a car sill.

  In general, in an elevator apparatus, landing doors provided at each landing are opened and closed by a door driving device provided in a car that moves up and down in a hoistway. That is, when the car is landed, the car-side engaging body projecting from the car door to the car side and the car-side engaging body projecting from the car door to the car side engage with each other, thereby The driving force of the door driving device for driving the door is transmitted to the landing door via the door engaging device including the landing side engaging body and the car side engaging body. As described above, since the door engaging device protrudes from the landing door and the car door, the landing threshold for guiding the opening / closing operation of the landing door and the car threshold for guiding the opening / closing operation of the car door In order to avoid a collision between each sill and the door engaging device when the car is raised and lowered, a predetermined gap is formed across the frontage.

  However, if the width of the gap formed between the landing sill and the car sill is wide, for example, when the user getting on and off the car is using the wheelchair, the wheelchair wheel is caught on the sill edge, etc. Inconvenience may occur. Therefore, from the viewpoint of promoting barrier-free for the elderly and handicapped persons in the elevator apparatus, recently, there is a demand to narrow the gap, that is, to reduce the interval between the landing sill and the car sill (hereinafter simply referred to as “the sill interval”). Is increasing. On the other hand, if the sill interval is easily reduced, there is a risk that the door engagement device cannot sufficiently secure the engagement white when the car is landed, and the door opening / closing operation may be defective.

  In addition, as a prior art for solving the above problem, a movable auxiliary sill is provided in the car, and the auxiliary sill and the door engaging device are collided by arranging the auxiliary sill below the car sill when the car is running. It has been proposed that the auxiliary sill is moved to the platform side of the car sill at the time of landing of the car so as to block a part of the gap formed between the platform sill and the car sill ( For example, see Patent Document 1).

JP 2000-118930 A

  Since the motor is used for driving the auxiliary sill according to Patent Document 1, there is a problem that a device for driving the auxiliary sill, such as a motor, a circuit and a program for controlling the motor, is complicated and expensive. It was.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator capable of closing a gap formed between a landing sill and a car sill of an elevator with a simple configuration and at a low cost. It is to provide a doorway device.

  An elevator doorway apparatus according to the present invention is provided in an elevator hall, and is provided in a hall sill for guiding opening / closing operation of the hall door, a cam provided in a hoistway fixing body in the vicinity of the hall, and an elevator car. , A car sill that guides the opening and closing operation of the car door, a roller that is provided in the car and is guided to the cam by raising and lowering the car, and provided in the car, and has a predetermined clearance from the landing sill on the vertical projection plane at all times. Auxiliary sill placed between the landing sill and the car sill when the roller is moved to the landing side by being guided by the cam and the car sill is placed at the same height as the landing sill. It is equipped with.

  The present invention is provided at an elevator hall and guides the opening / closing operation of the hall door, a cam provided at a hoistway fixing body in the vicinity of the hall, and an elevator car. A car sill that guides the operation, a roller that is provided in the car and that is guided by the cam by raising and lowering the car, and is provided in the car, and is always arranged with a predetermined gap from the landing sill on the vertical projection plane When the roller is guided by the cam and moved to the landing side, and the car sill is arranged at the same height as the landing sill, the auxiliary sill is arranged between the landing sill and the car sill. Thus, the gap formed between the elevator sill and the car sill can be closed with a simple configuration and at a low cost.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a perspective view showing an elevator car apparatus according to Embodiment 1 of the present invention, FIG. 2 is a perspective view showing a main part of an elevator doorway apparatus according to Embodiment 1 of the present invention, and FIG. FIG. 4 is a detailed view and FIG. 4 is a side view showing the elevator doorway apparatus according to Embodiment 1 of the present invention.

  In FIG. 1 to FIG. 4, 1 is an elevator hoistway, 2 is a car that moves up and down in the hoistway 1, 3 is a car floor that supports the car 2, and 4 is a front beam provided at the front edge of the car floor 3. Reference numeral 5 denotes a car door provided on the car 2 for opening and closing a car doorway formed in the car 2. Reference numeral 5a denotes a door leg protruding downward from the lower end of the car door 5. Reference numeral 6 denotes a front beam 4 The upper surface of the car floor 3 is substantially flush with the upper surface (the car floor surface) of the car floor 3, and the car sill guides the door legs 5 a when the car door 5 is opened and closed, and 7 is the upper part of the car 2. A door drive device that opens and closes the car door 5, 8 is a car-side engagement body provided on the car door 5, and 9 is an apron for preventing pinching that protrudes downward from the front beam 4. It is.

  10 is provided at each elevator landing, a landing door that opens and closes the landing entrance formed at the landing, 10a is a door leg protruding downward from the lower end of the landing door 10, and 11 is provided at the landing. A landing sill, whose top surface is substantially flush with the floor of the landing and guides the door leg 10a when the landing door 10 is opened and closed, 12 is prevented from being pinched protruding downward from the landing sill 11. It is a toe guard. Although not shown, the landing door 10 is provided with a landing-side engaging body. When the car 2 is landed, the landing-side engaging body projecting from the landing door 10 to the car 2 side and the car-side engaging body 8 projecting from the car door 5 to the landing side are engaged with each other. Thus, the driving force of the door driving device 7 is transmitted to the landing door 10 via the door engaging device including the landing-side engaging body and the car-side engaging body 8, and the landing door 10 is interlocked with the car door 5. Open and close.

  In addition, the car sill 6 is provided with an auxiliary sill 13 that closes a gap formed between the hall sill 11 and the car sill 6 when the car 2 reaches the landing. The auxiliary sill 13 has a plate shape having a predetermined thickness, width, and length, and its longitudinal side is arranged across the entrance direction of the car entrance and exit, and is arranged along the entrance direction of the car entrance and exit. A portion is rotatably provided at the landing side tip of the car sill 6. The auxiliary sill 13 is arranged in a standing state so that the other side portion faces upward at the platform door side of the car door 5 at all times, thereby having a predetermined gap with the platform sill 11 on the vertical projection plane. Arranged. Further, the auxiliary sill 13 is moved (tilted) so that the other side portion protrudes to the landing side when necessary, so that the upper surface of the car sill 6 is arranged at substantially the same height as the landing sill 11. It is arranged between the landing sill 11 and the car sill 6 so as to be substantially flush with the upper surface of the cage sill 6.

  Here, 14 is provided at the front end portion of the car sill 6 so that the axial direction is the entrance direction of the car doorway, 15 is a shaft that rotatably supports the auxiliary sill 13 on the car sill 6, and 15 is a car door. The panel forming the door contact surface of 5 is bent on the side opposite to the car entrance, so that a fixed portion provided on the side of the car entrance, 16 is a spring hook provided on the fixed portion 15, and 17 is an auxiliary sill 13 is provided between the spring hooks 16 and 17, and a return spring that constantly biases the auxiliary sill 13 toward the fixed part 15 so that the auxiliary sill 13 is in an upright state. , 19 is a roller interlocking with the rotation of the auxiliary sill 13, 20 is provided at one end of the auxiliary sill 13, and the roller 19 is arranged in a predetermined position and orientation with respect to the auxiliary sill 13. It is an arm that is rotatably supported.

  The car sill 6 and the auxiliary sill 13 restrict the movement of the other end of the auxiliary sill 13 downward when the upper surface of the auxiliary sill 13 is substantially flush with the upper surface of the car sill 6. Regulatory means are provided. The restricting means according to the first embodiment includes a protrusion 6 a provided at the landing side tip of the car sill 6 and a protrusion 13 a provided at one side of the auxiliary sill 13. When the auxiliary sill 13 is tilted to the landing side about the shaft 14 and the upper surface thereof is arranged substantially flush with the upper surface of the car sill 6, the restricting means contacts the protrusion 6a from below. By doing so, the rotation of the auxiliary threshold 13 is restricted.

  Reference numeral 21 denotes a cam which is fixed to the hoistway wall 1a near the landing by bolts 22 and is arranged on the side of the landing threshold 11. The cam 21 guides the roller 19 by its guide surface, so that the other side of the auxiliary sill 13 is tilted to the landing side, and the car sill 6 is arranged at substantially the same height as the landing sill 11. In addition, the auxiliary sill 13 has a predetermined shape and arrangement so as to make it substantially horizontal. The cam 21 may be provided on another hoistway fixing body such as a hoistway beam.

  In the elevator doorway apparatus having such a configuration, when the car 2 approaches the landing, the roller 19 contacts the guide surface of the cam 21 immediately before the car sill 6 is disposed at substantially the same height as the landing sill 11. That is, the car sill 6 is arranged slightly above the landing sill 11 when the car 2 is lowered, and the car sill 6 is slightly below the landing sill 11 when the car 2 is raised. The roller 19 contacts the guide surface of the cam 21 in the disposed state.

  When the roller 19 is guided to the cam 21 by the traveling of the car 2, the other side portion of the auxiliary sill 13 is tilted to the landing side in conjunction with the movement of the roller 19, and the car sill 6 is moved to the landing sill 11. When the height reaches substantially the same height, the auxiliary sill 13 becomes substantially horizontal, and the upper surface of the auxiliary sill 13 and the upper surface of the car sill 6 are arranged substantially flush with each other. That is, in a state where the car sill 6 reaches the height of the landing sill 11, the floor surface of the entrance / exit is formed by the upper surfaces of the landing sill 11, the auxiliary sill 13, and the car sill 6 that are arranged substantially flush with each other. FIG. 5 is a side view for explaining the operation of the elevator doorway apparatus according to Embodiment 1 of the present invention. When the car 2 is landed, a gap formed between the landing sill 11 and the car sill 6 is shown. The state where it was blocked by the auxiliary sill 13 is shown.

  According to Embodiment 1 of the present invention, it is possible to close the gap formed between the landing sill 11 and the car sill 6 with a simple configuration and at a low cost. It is not necessary to use an expensive device such as a motor or a circuit for driving the motor for driving. In addition, since an electric power source is unnecessary, it is possible to deal with an existing elevator at low cost and easily.

  On the other hand, when the car sill 6 (auxiliary sill 13) passes through the height of the landing-side engaging body, the auxiliary sill 13 is arranged in a standing state, and the sill interval can be increased as usual. For this reason, it is possible to sufficiently secure the engagement margin of the door engaging device, and there is no possibility that a malfunction occurs in the door opening / closing operation. Further, when the car 2 is lowered, the roller 19 is in contact with the cam 21 after the auxiliary sill 13 is disposed below the landing-side engaging body, so that the door 2 can be opened immediately before the car 2 completely stops. It is possible to deal with an elevator apparatus that performs the operation.

  In the elevator doorway apparatus having the above-described configuration, when the car 2 reaches the height of the landing, the auxiliary threshold 13 is always tilted to the landing regardless of the stop floor and the passing floor, and the landing threshold 11 and the basket threshold 6 The gap formed between the two is closed. Therefore, such an entrance / exit device is provided when an elevator is provided in a place where there are always a large number of passengers, for example, when a landing is provided in a station building, or two landings where the car 2 is provided on the upper and lower floors. This is a particularly effective means when there is no passing floor and there is no passing floor. For example, it is convenient for an elevator for a station building that connects a station platform and a ticket gate floor, which are in high demand recently due to welfare measures.

Embodiment 2. FIG.
6 is a perspective view of a main part showing an elevator doorway apparatus according to Embodiment 2 of the present invention, and FIG. 7 is a BB arrow view in FIG. 6 and 7, the cam 21 is located at a position where the roller 19 comes into contact with the raising / lowering of the car 2 (hereinafter referred to as “contact position”) and a position where the roller 19 does not come into contact even when the car 2 is raised or lowered (hereinafter referred to as “non-contact”). It is provided in the “contact position” so that the arrangement can be switched. And it is arrange | positioned in a non-contact position normally, and is arrange | positioned in a contact position at the time of landing of the cage | basket | car 2, and it is comprised so that the roller 19 may be guided.

  Here, reference numeral 23 denotes a mounting plate provided on a hoistway fixing body such as the hoistway wall 1 a, 24 denotes a shaft support that protrudes from the mounting plate 23, and 25 is provided between both shaft supports 24. Thus, the axis is arranged in the vertical direction. The cam 21 is configured such that the landing side end portion is rotatably provided on the shaft 25, so that the guide surface side is movable.

  Reference numeral 26 denotes a stopper having one end provided on the mounting plate 23 and the other end arranged at a predetermined position on one side of the cam 21. The stopper 26 has a function of restricting rotation of the cam 21 to one side up to a predetermined position when the other end portion contacts one side surface of the cam 21. The cam 21 is configured to be disposed at a non-contact position with the roller 19 in a state where the other end portion of the stopper 26 contacts one side surface and rotation to one side is restricted. Reference numeral 27 denotes a stopper having one end provided on the mounting plate 23 and the other end arranged at a predetermined position on the other side of the cam 21. The stopper 27 has a function of restricting rotation of the cam 21 to the other position up to a predetermined position by contacting the other side surface of the cam 21 with the other end portion. And the cam 21 is comprised so that it may be arrange | positioned in the contact position with the roller 19 in the state in which the other end part of the stopper 27 contacted the other side surface, and the rotation to the other was controlled. Reference numeral 28 denotes a stopper rubber provided at each of the other end portions of the stoppers 26 and 27.

  29 is a spring hook provided on the mounting plate 23 via the stopper 26, 30 is a spring hook provided on one side of the cam 21, and 31 is provided between the spring hooks 29 and 30, thereby A biasing spring 32 that is constantly biased in the direction of rotation and is arranged in a non-contact position with the roller 19 is provided on the mounting plate 23 via a stopper 27, and is arranged on the other side of the cam 21. In this case, the cam 21 is attracted when the car 2 is landed, and the cam 21 is disposed at a position in contact with the roller 19.

  In the elevator doorway apparatus having the above-described configuration, the power supply of the electromagnetic magnet 32 is normally OFF, and the cam 21 is disposed at a non-contact position with the roller 19. In such a state, even when the car 2 moves up and down, the roller 19 does not come into contact with the cam 21 and the auxiliary sill 13 is arranged in a standing state, and a predetermined gap is always formed between the landing sill 11 on the vertical projection plane. Is done.

  On the other hand, when the car 2 that has responded to the car call or the hall call approaches the landing floor, the electromagnetic magnet 32 is attached by an elevator control device (not shown) when the car 2 reaches a predetermined height. The cam 21 provided in the vicinity of the landing is arranged at the contact position with the roller 19. And just before the car sill 6 is arranged at substantially the same height as the landing sill 11, the roller 19 comes into contact with the guide surface of the cam 21, and the other end of the auxiliary sill 13 is tilted to the landing side. The subsequent operation is the same as in the first embodiment.

  According to the second embodiment of the present invention, the cam 21 is configured to be disposed at a contact position and a non-contact position with the roller 19, so that the roller 19 and the cam 21 do not contact with each other on the passing floor. Can do. Therefore, it is possible to prevent a collision sound between the roller 19 and the cam 21 on the passing floor, and a quiet elevator operation is possible. The other configurations and effects are the same as those of the first embodiment.

It is a perspective view which shows the elevator car apparatus in Embodiment 1 of this invention. It is a principal part perspective view which shows the elevator doorway apparatus in Embodiment 1 of this invention. FIG. 3 is a detailed view of part A in FIG. 2. It is a side view which shows the entrance / exit device of the elevator in Embodiment 1 of this invention. It is a side view for demonstrating operation | movement of the elevator doorway apparatus in Embodiment 1 of this invention. It is a principal part perspective view which shows the doorway apparatus of the elevator in Embodiment 2 of this invention. It is a BB arrow line view in FIG.

Explanation of symbols

1 hoistway, 1a hoistway wall, 2 car, 3 car floor, 4 beam in front of floor,
5 cage doors, 5a door legs, 6 cage sills, 6a protrusions, 7 door drive,
8 car side engagement body, 9 apron, 10 landing door, 10a door leg,
11 landing threshold, 12 toe guard, 13 auxiliary threshold, 13a protrusion,
14 shafts, 15 fixed parts, 16 spring hooks, 17 spring hooks,
18 return springs, 19 rollers, 20 arms, 21 cams, 22 bolts,
23 mounting plate, 24 shaft support, 25 shaft, 26 stopper,
27 Stopper, 28 Stopper rubber, 29 Spring hook, 30 Spring hook,
31 Biasing spring, 32 Electromagnetic magnet

Claims (7)

A landing threshold that is installed in the elevator hall and guides the opening and closing of the landing doors,
A cam provided on a hoistway fixing body in the vicinity of the landing;
A car sill that is installed in the elevator car and guides the opening and closing of the car door;
A roller provided on the car and guided to the cam by raising and lowering the car;
The car is provided on the vertical projection plane with a predetermined gap on the vertical projection plane, and the roller is guided to the cam and moved to the landing side to guide the car sill. Is arranged between the landing sill and the car sill when placed at the same height as the landing sill,
An elevator doorway device characterized by comprising:   The auxiliary sill is provided so that one side is pivotably provided at the landing side tip of the car sill, and the other side is normally arranged so that the other side faces upward, and the roller is guided to the other side by the cam. The upper surface is arranged flush with the upper surface of the car sill when the section is tilted to the landing side and the car sill is arranged at the same height as the hall sill. Elevator doorway equipment.   The apparatus according to claim 2, further comprising a restricting means for restricting the other side portion of the auxiliary sill from moving downward when the upper surface of the auxiliary sill is flush with the upper surface of the car sill. The elevator doorway apparatus described.   The elevator doorway apparatus according to any one of claims 1 to 3, wherein an elevator hall is provided in the station building.   The cam is provided so as to be disposed at a contact position and a non-contact position with the roller, and is always disposed at the non-contact position, and is disposed at the contact position when the car is landed to guide the roller. The elevator doorway apparatus according to any one of claims 1 to 4, wherein the elevator doorway apparatus is provided. A biasing spring that constantly biases the cam and places the cam in a non-contact position with the roller;
An electromagnetic magnet that adsorbs the cam when the car is landed and places the cam in a contact position with the roller;
The elevator doorway apparatus according to claim 5, further comprising:   The elevator doorway apparatus according to any one of claims 1 to 4, wherein the elevator car moves up and down only between two landings provided on upper and lower floors.

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