JPS593621B2 - Folding door device for elevators - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a folding device for an elevator.

The door system commonly used for passenger elevators consists of double-sliding doors, but in order to take up space on both sides of the door, the elevator hoistway width becomes wider, and the car shape accordingly has a wider frontage and a shallower depth. becomes.

This format has been considered the most convenient for accessing office buildings and the like.

As elevators become more common for residential use, car sizes that are as long as possible are needed to make it easier to transport furniture and storage racks, etc., and the hoistway frontage dimensions become relatively short to accommodate this. Two single sliding doors are standardized.

However, even with this configuration, the door pocket size requires more than half the width of the entrance/exit, which has the drawback of increasing the hoistway frontage and increasing equipment costs.

To shorten the door bag size, it is possible to some extent to shorten the two-panel door by adding three or four sliding doors, but this is not practical as it is obvious that the manufacturing cost will increase due to the complicated structure of the door device.

Furthermore, although the folding lattice door system as seen in upper 1-novators for luggage may satisfy the dimensional requirements, it cannot be applied as a door device for automatically operated passenger elevators because of the danger of pinching safety hands.

Furthermore, a common drawback of sliding doors is failure to open/close due to dirt clogging in the sill groove, which accounts for 1/4 of the total failure rate.
Considering that the number of elevators occupied by elevators is large, solving the problem of garbage clogging is considered to be the key technical point in providing highly reliable elevators.

The present invention aims to overcome the above-mentioned drawbacks and to provide a folding and pushing device for elevators and elevators, which requires a short dimension for the hoistway frontage and can provide a wide entrance/exit width.

An embodiment of the present invention will be described above with reference to FIGS. 1 to 3.

In the figure, 1 is the elevator landing, 2 is the hinged door installed at the entrance 3, J is the width of the entrance 3, 4 is the car, 5 is the side wall of this, A is the inner width of the foot 4. , 6 is an entrance/exit of the car 4 constituted by the side walls 5, 1 is a cross member disposed at the upper edge of the entrance/exit 6, and 8 is an electric motor, a reduction gear, a wrap transmission device 8a, etc. installed therein. A well-known drive device consisting of.

Reference numeral 9 denotes a guide rail having a C-shaped cross section, fixed to the cross member γ, and arranged along the upper edge of the entrance/exit 6; 10, a first guide rail;
The hanging hand 10a is pivotally supported by the hanging hand and is attached to the guide rail 9 C.
The lower roller 10b is placed in contact with the C-shaped lower curved portion of the guide rail 9, and is pivotally supported in the same manner as the lower roller 10a. Both 10a and 10b are attached to the first handle 10 by a well-known eccentric shaft or the like so that they can be displaced vertically in FIG. 3.

10c is a connector extending upward from the first hanger 10, and is connected to the upper side of the wrap transmission device 8a.

10d is a pivot that projects downward from the first hanging hand 10;
Reference numeral 1 designates a second hanger similar to the first hanger 10, which is connected to the lower side of the winding transmission 8a, and is provided with a pivot shaft 11d.

Reference numeral 12 designates a first folding door in which adjacent edges of two plates are pivotally connected to each other; 12a is a pivoting end pivoted to one side wall 5; 12b is an opening/closing end; The pivot shaft 10d is inserted through it.

13 is an elastic body made of a compression coil spring that is inserted through the pivot shaft 10d and whose upper end is in contact with the lower surface of the upper edge member of the first folding door 12; 14 is screwed into the pivot shaft 10d and is in contact with the lower end of the elastic body 13; 15 is a second folding door similar to the first folding door 12, 15a is a pivoting end pivotally supported on the other side wall 5, 15b is an opening/closing end; It is pivoted to the hanging hand 11.

16 is the opening/closing end 12b of the fourth and second folding doors 12°15;
15b, each door stop strip is made up of a rubber cover and a tape-like switch.

That is, the first and second hangers 10.11 are engaged with the guide rail 9 so as to be movable in the left-right direction in FIG. 2, and are also connected to the upper and lower rollers 10a, respectively.

The position of 10b is adjusted so that it engages with guide rail 9 with minimal play.

In addition, the opening/closing ends 12b, 1 of the first and second folding doors 12°15
5b is pivotally supported by the first and second handles 10 and 11, respectively, and supports part of the weight of the folding doors 12 and 15.

Moreover, since it is supported via the elastic body 13, it is supported so that it can be displaced in the vertical direction of the opening/closing ends 12b, 15b of the folding door 12.15.

Then, as shown in Figure 1, when the folding door 1 is fully closed,
2 and 15 are placed in a slightly bent state, and now,
If the electric motor of the first drive device 8 rotates clockwise in FIG.
0 moves to the right, and the second hanging hand 11 moves to the left.

At this time, since the first and second hangers 10 and 11 are engaged with the guide rail 9 by the upper and lower rollers, the pivots 10d and lld move smoothly while maintaining their respective straight alignments.

As a result, the folding door 12.15 is bent and opened as shown by the chain line in FIG.

The folding door 12.15 opened in this way has an entrance width of J
Because it can be stored within the dimensions of about 10 degrees outside,
It is possible to reduce the size of the door pocket in the sliding door.

For this reason, the hoistway frontage dimension can be shortened with respect to the entrance/exit width J, and since the apparatus can be configured simply, equipment costs and maintenance costs can be reduced.

Therefore, it is possible to realize an inexpensive elevator especially for residential use with a small load capacity.

Moreover, since a guide device at the lower part of the folding doors 12, 15 is not required, it is possible to prevent an accident in which a foreign object enters the threshold and the door cannot be opened or closed.

In addition, the door stop strip 16 allows passengers to enter the folding doors 12, 15
can be prevented from being pinched into each other.

In addition, in this embodiment, since the folding doors 12 and 15 are supported via the elastic body 13, the folding doors 12 and 15 are free from damage caused by manufacturing errors, twisting, etc. of the respective plates of the folding doors 12 and 15. The imbalance in the movement of the upper and lower ends of the elastic body 13
absorbed by.

Therefore, the opening/closing resistance of the folding door 12.15 can be reduced, and smooth opening and closing operations can be obtained.

As explained below, the present invention elastically supports a folding door, which has one end pivotally attached to a handle engaged with a guide rail and the other end pivoted to the side edge of an entrance. It is opened and closed by a drive device via a hanging hand, and is placed facing the side wall of the car when the door is opened.

As a result, the required dimension in the width direction of the entrance/exit when opened is small, the entrance/exit is wide even if the hoistway frontage is narrow, and a door device that is simply configured and operates smoothly can be obtained, reducing equipment costs and maintenance costs. The purpose of this invention is to realize an inexpensive elevator that is capable of

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the essential parts of an elevator system showing one embodiment of the folding door system for elevators according to the present invention, FIG. 2 is an elevational view of the car side of FIG. 1, and FIG. It is a sectional view taken along the line -■. 4...basket, 5...side wall, 6...
... Entrance/exit, 8... Drive device, 9...
Guide rail, 10, 11...first and second hanging handles, 12...first folding door, 13...elastic body, 14...nut , 15... Second folding door. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. A guide rail provided along the upper edge of the car doorway, a hanging hand movably engaged with the guide rail,
It consists of a drive device that drives the hanger horizontally, and a plurality of plates whose edges are pivotally connected to each other, one end of which is pivoted to the side line of the entrance and exit, and the upper end of the other end is pivoted to the hanger. a folding door whose plate bodies face each other and face the side wall of the car perpendicular to the width direction of the doorway when the door is opened; and an elastic body whose both ends are held by the hanging hand and the folding door, respectively. A folding and pushing device for an elevator that supports the folding door by the handle via an elastic body and opens and closes the folding door by the drive device via the handle.