JP2001253669A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a level error beyond a reference value (normal stopping position) because of some defectives in a car causing interfering of a door of the car with the floor on a landing floor or a door frame and preventing the door opening. SOLUTION: The car door can be freely turned with respect to the car by means of a hinge, and the car door is engaged in the car by its self-weight and guided upward the car along the shaft of the hinge so as to slide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing open / close door type elevator capable of opening a car door even when the car exceeds a normal stop position and rises or descends excessively.

[0002]

2. Description of the Related Art As described in JP-A-63-22484 or JP-A-54-13154, in a conventional elevator using a swingable door, a landing-side door and a car are used. It has been proposed that the door of the car can be opened and closed together with the door on the landing side and the door of the car together by a locking portion.

[0003]

However, if the level of the car exceeds the reference value (regular stop position) due to some trouble and the level goes out of order, the door of the car interferes with the floor of the hall or the door frame and opens. And may trap passengers in the car.

For example, when the car descends, when the vehicle goes too far below the stop reference level on the first floor due to speed control or an unforeseen situation due to a brake failure of the electric motor or the like, the door opening and closing method is a swing method, and When the opening direction of the car-side door is on the landing side, the car-side door interferes with the building and cannot be opened due to a step with the floor on the first floor.

Accordingly, an object of the present invention is to propose a door opening system in which the door on the car side does not interfere with the building even under such unsatisfactory conditions.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method of mooring a car door to a landing-side door even if the car is too far from a regular stop floor, for example, the first floor. It allows the passenger to open the car door from the inside of the car and get out.

[0007] That is, the swing type car door is rotatable by a hinge on the car, and the car door is engaged with the car by its own weight, and the hinge is vertically moved with respect to the car. It is structured to slide by being guided by a shaft.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a structural view showing the overall structure of an elevator according to the present invention, and FIG. 2 is a perspective view showing the details thereof, along an elevator hoistway 1 extending in the vertical direction of the building.
A first floor 2 and a second floor 3 are provided.

Although this embodiment shows an elevator installation dedicated to the second floor of the upper motor type, the present invention also applies to other elevators of the lower motor type in which the number of floors and the motor are installed in the lower pit. Applicable.

An elevating nut 8 integrally fixed to the car 4 is screwed with a screw 7 extending along the hoistway 1, and the screw 7 is rotated by an electric motor 9 so that the elevating nut 8 Car 4 by driving
Is raised and lowered.

The raising and lowering of the car 4 is controlled by the electric motor 9.
The rotation direction is rotated forward and backward. A disc-shaped brake 10 is directly connected to the output shaft of the electric motor 9, and the brake 10 fixes the car 4 at a stop position.

The guide rail 13 is provided along the hoistway 1 and guides the movement of the car 4. The car 4 is provided with a car door 5. Further, a landing door 6a is disposed on the first floor on the landing side, and a landing door 6b is disposed on the second floor.

At the bottom of the hoistway 1, there is a pit 11,
A spring shock absorber 12 is provided here for forcibly stopping the car 4 when it descends beyond the limit value and ensuring passenger safety.

A bearing base 14 is fixed to the car 4 corresponding to the lowermost end of the screw 7, and guides and supports the screw 7. A centrifugal brake 18 is installed adjacent to the bearing stand 14. This centrifugal brake 18
It operates according to the speed of the car 4, and when it reaches an overspeed condition, it stops by a centrifugal force. A control panel 16 for controlling the electric motor 9 is disposed above the electric motor 9.

FIG. 3 is a plan view of the hoistway of FIG. The car door 5 is a swingable swing type and when opened,
The rotation is performed by rotating the landing door 6 outward together with the landing door 6 in the direction indicated by the two-dot chain line. As will be described later, when the car is stopped at a regular position on the floor, the car door 5 and the landing doors 6a and 6b are configured to engage in the horizontal direction, and the car door 5 Landing door 6a,
6b can be opened and closed simultaneously.

FIG. 4 is an explanatory view showing a state in which the car 4 has gone too far below the first floor level on the first floor. The car 4 is below the stop level of the first floor 2 by a dimension β due to some trouble. If the vehicle goes too far in the direction, the vehicle rides on the buffer spring 12 and stops.

The car door 5 is moored at the landing door 6a, and the gap between the lower end of the car door 5 and the first floor 2 is dimension α.
, And the car door 5 does not interfere with the building due to the clearance dimension α.
To allow people in the car to escape.

FIG. 5 and FIG. 8 are detailed views of a part y in FIG.
The mooring state of the car door 5 is shown. Platform door 6a
, The engaging element 21 is fixed, and the engaging element 22 is fixed to the car door 5. The engagement element 21 is an engagement element 22
When the car 4 descends and stops on the stop floor, and the car door 5 faces the landing door 6, the car 4 is vertically positioned (moving direction of the car 4) and horizontal. Direction.

When the engaging members 21 and 22 are arranged as described above,
When overrunning of the car 5 occurs, the engaging element 21
As shown in the figure, the car door 5 is engaged with and anchored at the landing door 6 from the dimensional relationship of 22, and stops regardless of the movement of the car 4. That is, when the car 4 comes to the prescribed stop position, the protrusion member 221 of the engaging element 22
11, the car door 5 stops moving regardless of the movement of the car 4, and stops on the landing door as shown in FIG. 4.

Further, the projecting member 221 of the engaging element 22 for the car enters the engaging element 211 of the landing door 6a and engages in the horizontal direction. Therefore, when the landing door 6a or the car door 5 is opened, both can be opened and closed together as shown in FIG.

Similarly, the landing door 6b on the uppermost floor is provided with an engaging element 23 as shown by a dotted line in FIGS. 5 and 8c, while the car door 5 is provided with an engaging element 2 which engages with it.
4 are provided. The engaging element 23 is installed above the engaging element 24, and therefore, when the car 4 rises and stops on the stop floor, and when the car door 5 faces the landing door 6, the engaging element 23 is perpendicular to the engaging element 24 (car). 4 movement direction) and the horizontal direction.

When the engaging elements 23 and 24 are arranged as described above,
When overrunning of the car 5 occurs, the engaging element 23,
The car door 5 engages with the landing door 6 and is moored as shown in FIG. That is, when the car 4 comes to the prescribed stop position, the projection member 241 of the engaging element 24 abuts against the bottom 231 of the engaging element 23, and the car door 5 stops moving regardless of the movement of the car 4. Stops on the door.

Further, the projecting member 241 of the engaging element 24 for the car enters the engaging element 231 of the landing door 6b and engages in the horizontal direction. Therefore, when the landing door 6b or the car door 5 is opened, both can be opened and closed together as shown in FIG.

The widths A and B of the engaging members 21, 22, 23 and 24
When the car 4 stops on the stop floor and the car door 5 faces the hall door 6, the car door 5 and the car door 5 are engaged in the vertical and horizontal directions and can be opened and closed together, It is set so that the car door 5 and the landing door 6 are not disengaged even when fully opened.

FIG. 6 shows an overall view of the car door 5, and FIG.
Shows a detailed view of the hinge part. The mooring of the car door 5 and the landing door 6a has been described with reference to FIGS.
After the engagement of the car doors 1 and 22, the car door 5 slides upward with respect to the landing-side door 6 so as to be movable.

As shown in FIG. 6, the car door 5 is
The hinges 31 and 32 are arranged at three places to be rotatable, thereby forming a swing type door. The hinge 32 is fixed to the car door 5 while the hinge 31 is fixed to the car body.

A pin 40 is attached and fixed to the hinge 31. The hinge 32 is inserted into the pin 40 so as to be rotatable, and the pin 40 is sufficiently long as shown. Therefore, as described in FIG.
Goes too far downward by dimension β and car door 5 is 5 '
Even if it slides to the position, the pin 40 does not separate from the car body and holds it rotatably.

When the car door 5 moves to the position of the car door 5 ', the hinge 32 moves together with 5 to the position indicated by the hinge 32'. In addition, even in the normal operation stop state, it is necessary to secure a gap between the car door 5 and the floor surface, and without this gap, the car door 5 cannot be opened and closed.

That is, as shown in FIG. 4, the clearance in a normal operation state is set to a size considering the stopping accuracy, and is set to a size in which the engaging members 21 and 22 are not normally engaged. Furthermore, the car door 5 and the landing door 6a need only be moored at the terminal floor such as the first floor, and if the car stops too far down on the middle floor, the car door 5 is naturally opened and closed. I cannot do it.

At this time, for example, the brake 10 can be released, the vehicle can be lowered to the first floor, go out, and then drive again to the middle floor. Therefore, there is no need to consider the mooring mechanism on the middle floor.

According to the above-described embodiment, when the position of the car is positively set to the first floor, and the level goes wrong,
By using the downward movement of the car, the car door is moored to the landing door so that the car door can be opened and closed. The door can be opened and closed automatically. In addition, it is possible to provide an inexpensive and effective means for preventing the confinement in the car.

Further, the position where the car stops after passing the first floor is limited by a shock absorber installed in the pit portion, and within this limit, the car and the step on the floor of the first floor of the building are limited. However, it is within the range that people can get over.

[0034]

As described above, according to the present invention, it is possible to automatically open and close the door even if the stop level is deviated due to a malfunction, thereby preventing the car from being trapped. .

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an elevator according to the present invention.

FIG. 2 is a detailed perspective view of the overall configuration diagram of FIG.

FIG. 3 is a hoistway plan view of the overall configuration diagram of FIG. 1;

FIG. 4 is a diagram showing an engaged state of a car door and a landing door.

FIG. 5 is a view of a car door moored to a landing door.

FIG. 6 is a configuration diagram of a car door.

FIG. 7 is a detailed view of a hinge.

FIG. 8 is a detailed perspective view of the engagement element shown in FIG. 5;

[Explanation of symbols]

1 ... hoistway, 2 ... 1st floor, 3 ... 2nd floor, 4 ... car, 5 ... car door, 6a and 6b ... landing door,
7 screw screw, 8 lifting nut, 9 electric motor, 1
0 ... brake, 11 ... pit, 12 ... buffer spring, 13 ...
Guide rail, 14 ... bearing stand, 16 ... control panel, 18 ...
Centrifugal brakes, 21 and 22 ... engaging element, 31 ... hinge, 32 ... hinge, 40 ... pin.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takehiko Yasuda 832-8 Horiguchi, Hitachinaka-shi, Ibaraki Inside Tachimito Engineering Co., Ltd. Within the elevator group (72) Inventor Hidekazu Nakamura 832 Horiguchi, Hitachinaka-shi, Ibaraki F-term (reference) 3F307 AA04 CB03 CB15

Claims (6)

[Claims] 1. A swingable opening / closing landing door provided in an elevator landing, supported on a car, and movable vertically in relation to the car and capable of swinging. A swing-opening / closing type car door, and the hall door and the car door are provided respectively, and when the car stops on a stop floor and the car door faces the hall door, the car gets on the hall door. An engaging member for vertically engaging the car door, wherein the car door is moored to the landing door side irrespective of the movement of the car by engaging the engaging member, so that the car door moves vertically. The elevator is characterized by being restricted. 2. A swingable opening / closing landing door provided at an elevator landing, which is supported on a car and is movable up and down relative to the car, and is swingable. A swing-opening / closing type car door, and the hall door and the car door are provided respectively, and when the car descends and stops on the stop floor, and the car door faces the hall door, the hall door And an engaging element for vertically engaging the car door,
The elevator, wherein the car door is moored to the landing door side irrespective of the lowering of the car by the engagement of the engaging element, and the lowering of the car door is restricted. 3. A swing-opening / closing platform door provided at an elevator platform, which is swingable on and off, and which is supported on a car and is movable up and down relatively with respect to the car. A swing-opening / closing type car door, and the hall door and the car door are provided respectively, and when the car rises and stops on a stop floor and the car door faces the hall door, the hall A door and an engaging element for vertically engaging the car door, the car door being moored to the landing door side by the engagement of the engaging element, regardless of the elevation of the car, and The elevator is characterized by being restricted. 4. The elevator according to claim 1, wherein the width of the engaging member is set such that the engaging member is not disengaged when the car door and the landing door are fully opened. Elevator being used. 5. The elevator according to claim 1, wherein the car side engaging element is engaged with a hall door side engaging element provided on the hall door when the car is excessively raised. An elevator, comprising: an ascending-side engaging element that engages; and a descending-side engaging element that engages with a landing-door-side engaging element provided at the landing door when the car excessively descends. 6. The elevator according to any one of claims 1 to 3, wherein the engaging member is configured to move the car when the car stops on a stop floor and the car door faces the hall door. The landing door and the car door are vertically and horizontally engaged and can be opened and closed together,
An elevator having a width set so that the car door and the landing door are not disengaged when fully opened.