JP2007076902A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator having such a configuration that arranges a car fixing plate and a car position detection plate by bringing them close to each other without obstructing operation of a car position detection device and a lock mechanism. <P>SOLUTION: The car position detection plate 24 is constituted by dividing it into a supporting part 24a and a part 24b to be detected. The supporting part 24a is arranged above or below and adjacent to the car fixing plate 15. While adjusting front, rear, up, down, left, and right positions of the car position detection plate 24 for a guide rail 2L, the part 24b to be detected is arranged by shifting its position in the forward and backward directions for an engaging part 15a of the car fixing plate 15 in a clearance between the car fixing plate 15 and a car 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator including a car fixing plate and a car position detecting plate fixed to a guide rail. More specifically, the car fixing plate and the car position detecting plate are provided without interfering with the operation of the car position detecting device and the lock mechanism. The present invention relates to an elevator that can be placed close to each other.

  2. Description of the Related Art Conventionally, various so-called machine roomless elevators that do not have a machine room above a hoistway have been developed and proposed in order to efficiently use a space in a building and avoid problems such as the right to sunshine.

For example, in the machine roomless elevator (see Patent Document 1 below) shown in FIG. 3, the car 1 moves up and down in the hoistway while being guided by a pair of left and right car side guide rails 2L and 2R.
A pair of left and right doors 3L and 3R provided on the front surface of the car 1 open and close in the left-right direction.
The car frame that supports the car 1 has an upper beam 4 that extends horizontally in the left-right direction above the car 1, and a pair of left and right vertical beams 5L and 5R connected to the left and right ends of the upper beam 4. is doing.
In addition, a sheave support beam 6 that extends in an inclined manner in a horizontal plane with respect to the upper beam 4 is provided in a vertical gap between the upper surface of the car 1 and the upper beam 4.
The sheave support beam 6 is connected to the upper beam 4 so that the upper surface of the central portion in the longitudinal direction is in close contact with the lower surface of the central portion in the longitudinal direction of the upper beam 4.
The pair of left and right car sheaves 8L and 8R are rotatably supported by brackets 7L and 7R fixed to the upper surfaces of both ends of the sheave support beam 6, respectively.

The traction sheave 9 disposed in the vicinity of the upper end portion of the left car guide rail 2L is rotationally driven by a driving device 10 having a rotation shaft extending in the front-rear direction.
Of the hoisting rope 11 wound around the traction sheave 9, a portion 11a extending toward the car 1 side is a portion extending downward from the traction sheave 9 toward the left car upper sheave 8L, which is a pair of left and right car upper sheaves 8L, 8R. Between the right car upper sheave 8R and a part fixed to the right hitch part 12R. The car 1 is suspended by 2: 1 roping.
A portion 11b of the hoisting rope 11 that extends downward along the left side surface of the car 1 extends upward after being wound around a weight-side sheave rotatably supported on an upper portion of a counterweight (not shown). It is fixed to the left hitch portion 12L, and the counterweight is suspended by 2: 1 roping.

A car position detection device 13 is supported on the front left side of the upper portion of the car 1 via a bracket 13a, and a car position detection plate 14 is fixed to the left guide rail 2L via a support arm 14a. .
When the car position detecting device 13 detects the car position detecting plate 14 as the car 1 moves up and down, a signal indicating the position of the car 1 in the raising and lowering direction is transmitted to the elevator operation control device. The landing control for matching the floor surface with the floor surface of the car 1 is performed (see, for example, Patent Document 2 below).

Further, a car fixing plate 15 is fixed to the left guide rail 2L, and a lock mechanism 16 having a lock bar 16a is fixed to the upper left side of the car 1.
As a result, when the car 1 is raised to the top of the hoistway and the lock bar 16a protrudes toward the car fixing plate 15 and is inserted into the engagement hole 15a, the car 1 is fixed so that it cannot be raised and lowered. An operator who maintains and inspects the apparatus 10 can safely proceed with the work on the car 1 (see, for example, Patent Document 3 below).

JP 2004-1904 A JP-A-2-75578 JP 2000-203774 A

By the way, in a recent machine roomless elevator, the vertical dimension (overhead dimension) between the floor surface of the uppermost landing floor and the ceiling surface of the hoistway tends to be small.
Thereby, since the state where the car 1 is landed on the uppermost landing floor and the state where the car 1 is most elevated in the hoistway in order to check the drive device 10 approach in the vertical direction, The car position detection plate 14 and the car fixing plate 15 approach in the vertical direction.

In addition, a door driving device for opening and closing the pair of left and right doors 3L and 3R, an air conditioner for the car 1, and the like are disposed on the upper part of the car 1, but in accordance with a reduction in overhead size. The vertical dimensions of these devices tend to be small, and the longitudinal and lateral dimensions tend to increase.
Thereby, the plane space in the upper part of the car 1 gradually becomes insufficient, and the car position detecting device 13 and the lock mechanism 16 have to be arranged close to each other in the front-rear direction, and the car position detecting plate 14 and the car fixing plate 15 Will approach in the front-rear direction.

  That is, in a recent machine roomless elevator, the car position detection plate 14 and the car fixing plate 15 approach each other in the vertical direction and the front-rear direction, and the arrangement of the two and the fixing to the guide rail 2L become increasingly difficult. .

  Accordingly, an object of the present invention is to solve the above-described problems of the prior art and to arrange the car fixing plate and the car position detecting plate close to each other without disturbing the operation of the car position detecting device and the lock mechanism. To provide an elevator.

The means described in claim 1 for solving the above problem is as follows.
A guide rail that guides the raising and lowering of the car,
A car fixing plate and a car position detecting plate fixed to the guide rail;
A locking mechanism supported by the car for engaging the engaging part of the car fixing plate to lock the car so that it cannot be raised and lowered;
An elevator comprising: a car position detection device supported by the car that detects a position of the car by detecting a detected portion of the car position detection plate;
The car position detection plate is
A support portion disposed adjacent to the car fixing plate in the vertical direction;
A detected portion connected to the support portion and disposed adjacent to the engaging portion in a gap between the car fixing plate and the car in the front-rear direction.
It is characterized by having.

That is, in the elevator according to the first aspect, the car position detection plate is divided into a support portion and a detected portion.
Since the support portion of the car position detection plate is disposed above or below the car fixing plate, the position of the car position detection plate in the front, rear, top, bottom, left and right directions with respect to the guide rail can be adjusted.
In addition, since the detected part of the car position detecting plate is disposed in the gap between the car fixing plate and the car, the detected part and the car fixing plate do not interfere in the front, rear, top, bottom, left and right directions. .
Further, since the detected portion of the car position detecting plate is arranged with the position shifted in the front-rear direction with respect to the engaging portion of the car fixing plate, the lock mechanism and the detected portion engaged with the car fixing plate are arranged. There is no interference.

The means described in claim 2 is the elevator described in claim 1,
The engaging portion is an engaging hole penetrating the car fixing plate,
The lock mechanism has a lock rod that protrudes toward the car fixing plate and is inserted into the engagement hole;
The car position detecting device is arranged in a gap between the car fixing plate and the car while shifting the position in the vertical direction with respect to the lock bar.

That is, in the elevator according to the second aspect, the car position detection device and the lock bar are arranged with their positions shifted in the vertical direction, so that they do not interfere with each other.
At this time, since the lock rod can be configured with a smaller outer diameter than other types of lock mechanisms, the vertical displacement between the car position detecting device and the lock mechanism can be suppressed, and the car position can be detected. The plate and the car fixing plate can be disposed close to each other in the front and rear and upper and lower directions.

  ADVANTAGE OF THE INVENTION According to this invention, the elevator of the structure which can arrange | position a car fixing plate and a car position detection board closely can be provided, without preventing the action | operation of a car position detection apparatus and a lock mechanism.

Hereinafter, an embodiment of an elevator according to the present invention will be described with reference to FIGS. 1 and 2.
In the following description, the same parts as those in the prior art described above are denoted by the same reference numerals and redundant description is omitted, and the direction in which the door of the car opens and closes is defined as the left-right direction, and the passenger is in the car. The direction to enter and exit is referred to as the front-rear direction, and the vertical direction is referred to as the up-down direction.

The overall structure of the elevator 100 of the present embodiment is substantially the same as that of the conventional elevator shown in FIG. 3, except for the shape of the car position detection plate and the support structure of the car position detection device.
Therefore, differences from the conventional elevator shown in FIG. 3 will be described.

As shown in FIG. 1, the car position detection plate 20 in the elevator 100 according to the present embodiment is a plan view formed of a thick steel plate that is fixed to the back surface of the guide rail 2 </ b> L using a rail clip 21 and a bolt nut B. The L-shaped first bracket 22 and the L-shaped second bracket 23 in a plan view formed from a thick steel plate, which is fixed to the front end of the first bracket using a bolt nut B. ing.
A detection plate main body 24 formed of a thin steel plate is fixed to the distal end portion of the second bracket 23.

As shown in FIGS. 1 and 2, the detection plate main body 24 has a support portion 24 a supported by the second bracket 23 that is disposed adjacent to the upper side of the car fixing plate 15.
The support portion 24a is connected to the side of the car 1 and has a rectangular shape in a front view extending in the vertical and horizontal directions in the gap between the car fixing plate 15 and the car 1. The detection unit 24b is continuously provided.
The detected portion 24b is disposed adjacent to the engagement hole (engagement portion) 15a in which the lock rod 16a protrudes to the left and is inserted and engaged.

Further, as shown in FIG. 2, the car position detection device 13 in the elevator 100 of the present embodiment includes a first bracket 13a fixed to the car, and a vertical bracket fixed to the first bracket 13a. The extended second bracket 13 b is supported in a gap between the car fixing plate 15 and the car 1 while shifting the position in the vertical direction with respect to the lock bar 16.
Thereby, this car position detection apparatus 13 can receive the to-be-detected part 24b of the detection plate main body 24 in the recessed part 13c, and can detect the presence or absence.

That is, in the elevator 100 of the present embodiment, the detection plate body 24 of the car position detection plate 20 is configured to be divided into a support portion 24a and a detected portion 24b.
And since the support part 24a of the detection plate main body 24 is arrange | positioned upwards with respect to the cage | basket | car fixing plate 15, by adjusting the fixing position of the 1st and 2nd brackets 22 and 23, it is to guide rail 2L. On the other hand, the position can be adjusted in the front-rear, up-down, left-right directions.

Further, since the detected portion 24b of the detection plate main body 24 is disposed in the gap between the car fixing plate 15 and the car 1, it interferes with the car fixing plate 15 in the front, rear, up, down, left and right directions. There is nothing.
Furthermore, since the detected portion 24b is arranged with a position shifted forward with respect to the engagement hole 15a of the car fixing plate 15, it does not interfere with the lock rod 16a engaged with the car fixing plate 15.

In addition, since the car position detection device 13 and the lock bar 16a are arranged with their positions shifted in the vertical direction, they do not interfere with each other.
Further, since the lock bar 16a can be configured to have a smaller outer diameter as compared with other types of lock mechanisms, the amount of vertical displacement between the car position detection device 13 and the lock mechanism 16 can be kept small. The car position detecting plate 20 and the car fixing plate 15 can be arranged close to each other in the front-rear and up-down directions.

As mentioned above, although one Embodiment of the elevator which concerns on this invention was described, it cannot be overemphasized that a various change is possible for this invention, without being limited by embodiment mentioned above.
For example, in the above-described embodiment, the car position detection device 13 and the lock mechanism 16 are arranged on the front left side of the upper part of the car 1, but they are also arranged in other positions in the vicinity of the guide rails 2L and 2R. Can do.
Further, the support portion 24 a in the detection plate main body 24 of the car position detection plate 20 can be arranged adjacent to the lower side of the car fixing plate 15.

The perspective view which shows the car fixing plate and the car position detection board in the elevator of this invention. FIG. 2 is a plan view showing a car fixing plate and a car position detecting plate shown in FIG. 1. The perspective view which shows the conventional machine roomless elevator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2L, 2R Car side guide rail 3L, 3R Door 4 Upper beam 5L, 5R Vertical beam 6 Sheave support beam 7 Bracket 8L, 8R Car upper sheave 9 Traction sheave 10 Drive device 11 Hoisting rope 12L, 12R Hitch 15 Fixed plate 15a engagement hole (engagement part)
20 car position detection plate 21 rail clip 22 first bracket 23 second bracket 24 detection plate body 24a support portion 24b detected portion 100 elevator according to one embodiment

Claims (2)

A guide rail that guides the raising and lowering of the car,
A car fixing plate and a car position detecting plate respectively fixed to the guide rail;
A locking mechanism supported by the car for engaging the engaging part of the car fixing plate to lock the car so that it cannot be raised and lowered;
A car position detecting device supported by the car for detecting the position of the car by detecting a detected portion of the car position detecting plate;
The car position detection plate is
A support portion disposed adjacent to the car fixing plate in the vertical direction;
A detected portion connected to the support portion and disposed adjacent to the engaging portion in a gap between the car fixing plate and the car in the front-rear direction.
The elevator characterized by having. The engaging portion is an engaging hole penetrating the car fixing plate,
The lock mechanism has a lock rod that protrudes toward the car fixing plate and is inserted into the engagement hole;
The car position detecting device is disposed in a gap between the car fixing plate and the car while shifting the position in the vertical direction with respect to the lock bar.
The elevator according to claim 1.

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