JPH0428690A - Elevator basket door device - Google Patents

Abstract

PURPOSE:To reduce transmission of air sound into a basket when it is full closed without providing a special constitutional body by providing rails with recesses in which rollers of a suspension are engaged at the full closure position of a sliding door, so the whole door gets down to contract a gap to an entrance/exit lower edge part when the door reaches the full closure position. CONSTITUTION:For a sliding door 2, a first roller 2b, a second roller 2c are engaged at recessed parts 3a, 4a to get down when an entrance/exit 1a is full closed, and their lower ends are disposed to get in cont act with a lower edge part 1c through a resilient member 2e. The lower end of the sliding door 2 and the lower edge part 1c are thus tightly closed to each other, so air sound transmitted into a basket 1 at the time of high speed elevation of the basket 1 is reduced to achieve a high speed run calmly. When the sliding door is driven and opened, the rollers 2b, 2c get off the recessed positions 3a, 4a where they are engaged, while the sliding door 2 is moved to open. A gap of about 6mm is thus formed between the resilient member 2e and the lower edge part 1c normally, and the sliding door 2 reaches the full open position. The sliding door 2 can thus be opened and closed normally, and the gap between the lower end of the sliding door 2 and the lower edge part 1c can be reduced securely at the time of full closure without providing a special constitutional body to the sliding door 2, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator car door device that opens and closes an entrance using a sliding door.

[Conventional technology]

Sliding elevator car doors generally have their upper edges supported by rails to open and close.

A gap is formed between the lower edge of the sliding door and the sill even when the door is closed. And 9, for example, Jikosho 5! As shown in Japanese Patent No. 1-219025, a door device has been proposed in which the lower end of the sliding door is provided with a slope that rises from the door stop end side, and the sill side is also configured with a slope opposite to the slope at the lower end of the sliding door. .

In the conventional elevator door device as described above, when the sliding door is closed, the lower end of the sliding door and the slope of the sill approach each other, and when the sliding door is fully closed, the gap between the sliding door and the sill is reduced. By reducing the gap between the sliding door and the sill, the structure prevents wind noise generated when the car is raised and lowered at high speed, that is, noise in the range of 500 to 2 hertz, from being transmitted into the car.

[Problem to be solved by the invention]

In the conventional elevator car door device as described above, it is difficult to set the relative positions of the slopes of both the sliding door and the sill when the sliding door is fully closed, and the slopes of both sides come into contact with each other before the sliding door is fully closed. If the sliding door cannot be fully closed, or even if the sliding door is fully closed, there will be a relatively wide gap between the two slopes.
The problem was that the required sound insulation effect was not achieved.

This invention was made to solve this problem, and it is possible to do so without providing a special structure on the sliding door or the like.
It is an object of the present invention to provide an elevator car door device that reduces the gap between a sliding door and a sill by fully closing the door.

[Means to solve all problems]

In the elevator car door device according to the present invention, rollers are provided at the upper edge of the sliding door and are spaced apart from each other in the opening/closing direction and spaced apart from each other in a direction perpendicular to the opening/closing direction.

Furthermore, rails are provided at the upper edges of the entrance and exit to guide the rollers, and recesses into which the rollers fit when the sliding door is fully closed are formed in the rails.

[Operation] When the elevator car door device configured as described above is fully closed, the rollers fit into the recesses of the rails, and the entire sliding door is displaced downward.

〔Example〕

Figures 1 to 4 are diagrams showing one embodiment of the present invention. In Figure 9, (1) is an elevator car with an entrance/exit (11L) e, (1b) is a car floor, and (1c) is a car floor ( 1b]
The lower edge of the doorway (1a) consists of a sill placed on the front edge of the doorway (1a).
) is a groove recessed along the width direction, (2) is an entrance/exit (1a
) A sliding door consisting of a central cylinder sliding door that opens and closes (2a
) is the handle installed at the upper level of the sliding door (2), (2b
) is the first trochanter pivotally attached to the center approach of the entrance (1a) @ of the hanging hand (2a), First trochanter (2b)
Yoshimokato (1) Second trochanter placed close to the upper edge;
(2d) is a groove (2d) protruding from the lower end of the sliding door (2).
(2θ) is an elastic piece made of a viscoelastic material such as rubber and is attached to the lower end surface of the sliding door (2); (3) is a guide fitting slidably fitted to the doorway (1a); There is a doorway on the upper edge (
1a) It is fixed along the width direction and the first trochanter (2
b) The 1st rule that supported the bottom surface, (button) is the 3rd rule (3)
a recess provided on the top surface and arranged at a position where the first trochanter (2b) fits when the sliding door (2) is in the fully closed position;
4) is fixed to the upper edge of the doorway (1a) and the second trochanter (
2C) The second rail supporting the lower surface and arranged parallel to the rule (3) /'# (4a) /I'i 2nd L/-/N
This is a recess provided on the upper surface of the sliding door (21) into which the second trochanter (2C) fits when the sliding door (21) is in the fully closed position.

The sliding door (2) of the elevator car door device configured as described above is when the entrance/exit (1a) is fully closed.

The first trochanter (2b) and second trochanter (2c) fit into the recesses (3a) and (4a) and descend, and the lower end is an elastic piece (2e).
The first
The state shown in the figure will be reached. As a result, the space between the lower end of the sliding door (2) and the lower edge (1C) is sealed, and when the sliding door (1) goes up and down at high speed, there is less wind noise transmitted to the inside of the door (11), allowing quiet high-speed operation. can.

Further, when the sliding door (2) is opened from the state shown in FIG. 1 by a driving device (not shown), the first trochanter (2b) is opened.

The sliding door (2) moves open while the recesses (3a) (4a) into which the second trochanter (2C) is fitted escape. As a result, a gap of about 6 mm is usually formed between the elastic piece (2e) and the lower edge (1C), and the sliding door (2) reaches the fully open position. In this way, the sliding door (2) can be opened and closed normally without having to install any special structure on the sliding door (2), etc. (When fully closed, the lower end and lower edge of the sliding door (2) The gap in (1C) can be reduced.

In addition, even if the car floor (1b) is elastically supported and sinks due to the load, the recess (3a) (4a)
By setting the depth to a depth that takes into account the amount of settlement, the gap between the sliding door (2) and the lower edge (1C) when fully closed is reduced to the depth of the car (1C).
) It is possible to reduce the size regardless of the amount of load and achieve quiet, high-speed operation.

〔Effect of the invention〕

As explained above, this invention has a recess in the rail into which the trochanter of the handle fits into the fully closed position of the sliding door, and when the sliding door reaches the fully closed position, the entire sliding door is closed. It descends to reduce the gap with the lower edge of the entrance/exit.

As a result, the sliding door can be opened and closed normally, and the lower end of the sliding door can be brought close to the lower edge of the doorway when fully closed without providing any special structure, which has the effect of reducing wind noise transmission into the car.

[Brief explanation of the drawing]

Fig. 1 is a conceptual front view of essential parts of an elevator corner showing an embodiment of an elevator car door device according to the present invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a W, and a sliding door on the left side of Fig. 1. Near the upper edge? It is an enlarged perspective view. (1a)...Entrance/exit, (IC)...Lower edge, (
2)...Sliding door. (2a) --- Hanging hand e (2b) ``'First trochanter,
(20) - Second trochanter, (3) Second rule, (3a) Recess, (4) Second rail,
(4a) ... recess. Note that the same parts in the two figures are indicated by the same symbols.

Claims (1)

[Claims] A sliding door that operates along the width direction of the doorway to open and close the doorway, and a hanging hand that is attached to the upper end of the sliding door and has a trochanter that is spaced apart from each other in the direction of movement and the direction orthogonal to the direction of movement. and installed horizontally on the upper edge of the doorway and provided corresponding to each of the trochanters to guide the rolling of the trochanters by the top surface, and provided on the top surface to guide the rolling of the trochanters when the sliding door is fully closed. An elevator car door device comprising: a rail having a recess into which the trochanter fits and causes the sliding door to move downward to reduce the gap between the lower edge of the doorway and the lower end of the sliding door.