JP2002160879A - Door device for jamb of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To urge a door arranged on a jamb of an elevator to self-close via a simple mechanism. SOLUTION: A spring mechanism 5 or the like is fixedly mounted on the rear of the door 11c arranged on a vertical frame 11 or the jamb 1, so that spring force of the spring mechanism 5 or the like urges the door 11c to self- close.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator three-way frame door device suitable for a machine room-less elevator.

[0002]

2. Description of the Related Art A lift-type elevator is constructed by connecting a car and a counterweight by a main rope wound around a hoist, and a main control device of the hoist and the elevator is usually provided on a hoistway. Installed in the machine room.

However, for the purpose of effective use and space saving of the building in which the elevator is installed, especially in buildings such as middle and low-rise buildings, the hoisting machine is installed in the hoistway.
Machine room-less elevators, which do not have a machine room, are often used on rooftops on hoistways.

In a machine room-less elevator, a hoist is compact and installed in a hoistway. In many cases, a main control device is housed in a three-sided frame pocket provided at a landing on the top floor. Will be installed.

[0005] A three-sided door pocket is provided in a vertical frame, and an elevator main control device housed and installed in the door pocket is operated by a worker from the landing side during maintenance and inspection of the elevator. Therefore, a door is provided on the vertical frame of the three-sided frame forming the door pocket so as to open and close, facing the landing side.

That is, FIG. 5A is a front view of a conventional three-sided frame having a door provided on a vertical frame as viewed from the landing side, and the three-sided frame 1 is composed of two vertical frames set up on both left and right sides. 11, and a horizontal frame 1 laid horizontally above the two left and right vertical frames 11, 11.
And two sliding doors (landing doors) 2a, 2 on the landing side provided on a sill (not shown) provided inside the horizontal frame 12.
b is suspended and supported.

FIG. 5B is a cross-sectional view taken along the line AA of FIG. 5A. When the door is opened, two horizontal sliding doors 2a, 2a are shown.
b is drawn into the door pocket 11a formed in the vertical frame 11 on the left side in the figure, and the entrance on the landing side is opened.

In the machine room-less elevator, the elevator main controller 3 is disposed in the door pocket 11a.
An internal panel 11b is provided to avoid contact with the horizontal sliding doors 2a and 2b drawn inside, and the main control device 3 is installed with the internal panel 11b as a back toward the landing.

A bracket 11d is attached and fixed to the side wall plate of the vertical frame 11, and the door 11c is attached to the bracket 11d via a hinge 11e so as to be openable and closable. The front end side of the door 11c that is opened and closed is bent and formed in an L-shape as shown in the figure, and a handle 4 is provided at the bent portion. In many cases, the handle 4 is locked so that a user or the like cannot easily open it by mischief or the like, and the handle 4 itself protrudes from the surface of the door 11c to the landing side with the door closed. In general, it is of a push-in rotary type so that it does not protrude from the surface of the door 11c when locked.

With the elevator three-way frame door device having the above-described structure, an operator opens a door 11c that can be opened and closed on the front side (a landing side) of the vertical frame 11 at the time of maintenance and inspection, and the like, and operates the main control device. The operation check of No. 3 is performed.

[0011]

As described above, the three-way elevator frame is provided with a door, and during maintenance and inspection, the worker opens the door and holds the main control housed in the vertical frame. The equipment was being operated and inspected.

Incidentally, in the door pocket in which the main controller of the elevator is stored, the horizontal sliding door itself that opens and closes the entrance of the hall directly faces the hoistway. The gap is not completely shut off.

In addition, a through hole or the like for a tail cord connected between the main control device and the car is provided on an internal panel that partitions the main control device with the door pocket.

In a building where an elevator is installed, if a fire or the like occurs, the hoistway communicating with the upper and lower floors serves as a chimney. It is stipulated by the Building Standards Law and the like that the space is shut off.

Therefore, the doors provided on the three-sided frame facing the landing are required to be always closed for disaster prevention except when necessary for operation and inspection of the main control unit. There is no self-closing door device and improvement has been demanded.

An object of the present invention is to provide a door device of an elevator three-way frame capable of closing a door provided in an elevator three-way frame by a simple configuration and closing a hall and a door pocket of the three-way frame. With the goal.

[0017]

According to the first aspect of the present invention,
In an elevator three-way frame door device in which a door is provided so as to be openable and closable facing a landing side of the elevator, the door is configured to self-close by being driven by a spring mechanism.

According to a second aspect of the present invention, in the door device for an elevator three-way frame according to the first aspect, the spring mechanism is incorporated in a hinge provided between the door and a frame supporting the door. It is characterized by having been done.

According to a third aspect of the present invention, there is provided an elevator three-way frame door device provided with an openable / closable door facing a landing side of the elevator, wherein one end of a rope is fixed to the door, Is connected to a weight via a pulley at the other end.

As described above, according to the elevator three-way frame door device of the present invention, since it is constituted by a spring mechanism or a simple mechanical structure including attachment of pulleys and weights, installation becomes easy and troubles Repairs and replacements can be easily performed.

Further, when an elevator installed in an existing building is remodeled and replaced with a machine-room-less elevator for renewal, a door device that can be easily closed can be attached to an existing three-way frame.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an elevator three-way frame door apparatus according to the present invention will be described in detail with reference to FIGS. Note that the same components as those of the conventional configuration shown in FIG. 5 are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 shows a first embodiment of an elevator three-way frame door apparatus according to the present invention.
Is a front view of the entrance as seen from the landing side, and FIG.
FIG. 3 is a cross-sectional view taken along line A of FIG.

That is, the three-sided frame 1 is composed of two vertical frames 11, 11 erected on both the left and right sides, and the two left and right vertical frames 11,
A horizontal frame 12 is provided on the upper side of the frame 11.

The inside of the vertical frame 11 on the left side, that is, the inside of the door pocket 11a is partitioned by an internal panel 11b, and the main controller 3 of the elevator and the like are arranged on the near side. Therefore, the worker can open the door 11c provided on the front side (the landing side) of the vertical frame 11 to check and adjust the main control device 3 in the door pocket 11a.

The door 11c itself is openably and closably attached to the left side wall plate of the illustrated vertical frame 11 through a bracket 11d and a hinge 11e.
As shown in (b), the spring mechanism 5 is mounted inside the door 11c, and the door 11c self-closes by receiving the spring force of the spring mechanism 5.

That is, as shown in FIG. 1B, the spring mechanism 5 includes a first hook 5 provided on the back surface of the door 11c.
a, a second hook 5b attached to the inner panel 11b, and the second hook 5b and the first hook 5a.
The door 11c is biased by the tension spring 5c and self-closes.

The second connection of the tension spring 5c
Of the inner panel 11b in this embodiment.
However, since the tension spring 5c only needs to pull the door 11c in the direction in which the door closes, the door 11c can be mounted inside the vertical frame 11 on the side of the door 11c with which the handle 4 is engaged (the doorway side).

In the door device of the first embodiment, the spring mechanism 5 includes the first and second hooks 5a and 5b and the extension spring 5c, and the door 11c is configured to be closed automatically. However, a similar function can be obtained even if the hinge 11e is configured to add a spring mechanism.

FIG. 2 is an exploded view of a main part of an elevator three-way frame door apparatus according to a second embodiment of the present invention. In the door apparatus, a state in which a spring mechanism 5 is incorporated in a hinge 11e is shown. Is shown.

That is, the hinge 11e itself is
The spring mechanism 5 is attached to the mandrel 11eb of the hinge 11e, while being attached to the bracket 11d and the door 11c by a.

The spring mechanism 5 has a wire-shaped leaf spring 5d having an annular portion in the center through which a mandrel 11eb of a hinge 11e passes.
The two extended ends of the leaf spring 5d are connected to the bracket 1
Stoppers 5e, 5e are driven into the door 1c and the door 11c in the directions indicated by arrows X1 and X2, respectively, and fixed. The leaf spring 5d is always urged in the direction opposite to the directions of the arrows X1 and X2 in the drawing, that is, in the direction to decrease the interval θ, and functions to always close the door 11c.

FIG. 3 shows a third embodiment of a door device for an elevator three-way frame according to the present invention. The mainspring 5g is fixedly attached to the back surface of the vertical frame 11 with which the handle 4 is engaged.

The spring 5g is applied with a spring pressure so as to always wind the rope 5f, so that the door 11c, to which one end of the rope 5f is fixed, is urged in the direction of arrow Y and self-closes.

In each of the first to third embodiments, the spring mechanism 5 is employed so that the door 11c is self-closing. However, the door 11c is closed by utilizing the weight of the weight. 11
c can be configured to self-close.

FIG. 4A is a sectional view showing a fourth embodiment of an elevator three-way frame door apparatus according to the present invention.
FIG. 5B is a left side view showing the main part of FIG.

That is, in the door device of the fourth embodiment, one end of the rope 6 is fixed to the back surface of the door 11c, and the pulley 7 is attached to the back surface of the vertical frame 11 on which the handle 4 is engaged. The other end of the rope 6 is fixed, and is configured to be connected to a weight 8 via a pulley 7. Accordingly, the door 11c is similarly urged in the direction of the arrow Y by the gravity of the weight 8 and self-closes.

The direction of tension of the rope 6 changes depending on the opening angle of the door 11c, but the ring-shaped guide 9 is fixed to the vertical frame 11, and the rope 6 passes through the inside thereof and is drawn into the pulley 7. As a result, the direction in which the rope 6 is stretched with respect to the pulley 7 becomes constant, and the phenomenon in which the rope 6 separates from the pulley 7 due to an increase in the opening angle of the door 11c can be avoided.

In this embodiment, the pulley 7 is attached and fixed to the back surface of the vertical frame 11c. However, since the weight 8 connected to the rope 6 can be moved up and down, the pulley 7 is attached to the vertical frame 11 main body. However, the present invention is not limited to this, and may be fixed to the inner panel 11b, for example.

As described above, according to the door device of the present invention, the three-sided frame door can be closed by a simple structure such as a spring mechanism.

In addition, in addition to the above embodiments, the door 11
A pair of magnets may be attached to the front end of c and the opposing surface of the vertical frame 11 in which the door 11c is closed so that the self-closed door 11c is not easily opened by the attraction of the magnet.

In any case, according to the present invention, the door provided on the three-sided frame can be self-closed with a simple configuration, so that the landing and the car via the three-sided frame can move up and down. It is possible to provide a door device having an excellent disaster prevention effect, in which the door is properly shut off.

[0043]

According to the door apparatus of the present invention, the door provided on the three-way frame of the elevator is configured so as to be always self-closing with a simple structure. Effect can be exhibited.

[Brief description of the drawings]

FIG. 1 (a) is a front view showing a first embodiment of an elevator three-way frame door device according to the present invention, and FIG. 1 (b).
FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 2 is a second view of the door device of the three-way elevator frame according to the present invention;
FIG. 3 is an exploded view of a main part showing the embodiment.

FIG. 3 shows a third embodiment of a door device for an elevator three-way frame according to the present invention.
FIG. 3 is a cross-sectional view showing the embodiment.

FIG. 4 (a) is a sectional view showing a fourth embodiment of an elevator three-way frame door device according to the present invention, and FIG. 4 (a).
FIG. 5 is a left side view of a main part of FIG.

5 (a) is a front view showing a conventional elevator three-way frame door device, and FIG. 5 (b) is a sectional view taken along the line AA of FIG. 5 (a).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Three-way frame 11 Vertical frame 11a Door pocket 11b Partition plate 11c Door 11d Bracket 11e Hinge 11f Rope 12 Horizontal frame 2a, 2b Horizontal sliding door 3 Main control device 4 Handle 5 Spring mechanism 5c Coil spring 5d Leaf spring 6 Rope weight And)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshiaki Fujita 1 Toshiba-cho, Fuchu-shi, Tokyo F-term in Fuchu Works, Toshiba Corporation (reference) 3F307 BA07 CD00 CD21 CD23 CD23

Claims (3)

[Claims] 1. An elevator three-way frame door device provided with an openable and closable door facing a landing side of the elevator, wherein the door is configured to be self-closed by being driven by a spring mechanism. A three-way elevator frame door device. 2. The door of an elevator three-way frame according to claim 1, wherein the spring mechanism is incorporated in a hinge provided between the door and a vertical frame of a three-way frame supporting the door. apparatus. 3. An elevator three-way frame door device provided with an openable and closable door facing a landing side of an elevator, wherein one end of a rope is fixed to the door, and the other end of the rope is a three-way frame. 3. A door device for an elevator three-way frame, wherein the weights are connected via pulleys provided in the vertical frame.