JPH0361285A - Automatic expandable door for elevator - Google Patents

Abstract

PURPOSE: To ensure construction of an door assembly and adjustment of different elements in a short time by providing a common single sliding track on at least two doors and forming rotating means for the doors with units independent from the track and fixed to hanging bracket supports corresponding to the doors. CONSTITUTION: A common single sliding track 1 is disposed on both doors 2, 3 and rotating means for the respective doors 2, 3 are formed with units (boxes) 8 independent from the track 1 and fixed to hanging bracket supports 4, 5 corresponding to the doors at their torsions 11, 12. On the other hand, the profiles of the doors are mutually identical and proper right-angle folded portions are provided at the lateral ends of the doors to give a fire resistant labyrinth structure in addition to both profiles, or sealing between the doors.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an improved automatic telescoping door for use in vehicles, particularly elevators.

In particular, the present invention relates to an automatic telescoping door for an elevator, which has an improved guiding device or track for a plurality of door panels, as well as an improved rotating means and an improved contour shape of the door itself with soundproofing means.

[Conventional technology]

A conventional automatic telescoping elevator door basically consists of a metal frame assembled into a series of major subassemblies as follows.

Hanging bracket support for a door panel with two parallel tracks, one roller and a secondary roller; A somewhat complex door profile or panel for a fire labyrinth.

[Problem to be solved by the invention]

Most conventional solutions in this type of door use two tracks, with each displacement roller and secondary roller forming a complete unit on a solid double track.

Adjustment is therefore difficult to achieve as a large number of parts must be properly positioned and adjusted. Similarly, the structural lintels of the door unit are used to fasten the two tracks with corresponding separators and screws.
It must be constructed in such a way as to provide a few different flat standards.

Furthermore, this type of construction also presents parallelism and straightness problems between the two tracks and the aforementioned rungs.

On the other hand, the cantilevered flexible construction of the rollers and secondary rollers requires a very strong shaft and suspension support to prevent the deformation imparted by the overhanging door during reopening of the closed door. The structure of is functionally weak.

It should also be taken into account that conventional doors tend to constantly resonate and generate noise during opening and closing of the door. In most cases, a welded sandwich construction is required to prevent resonance. Sometimes special noise-absorbing paints or components are used.

Therefore, in the conventional elevator door structure, there are mainly cost problems and quality problems due to the large number of separated members, and furthermore, there are accuracy problems in obtaining smooth parallel movement of the telescoping members and the door There is also the problem of noise generated during operation.

Normally, when products are competitive on cost, the parts become extremely brittle and noise problems arise. Also,
Jerk, fatigue and cracking of the panel surface becomes a problem in conjunction with horizontal scratches caused by undesired contact between moving parts.

Finally, this type of door assembly requires a long time to construct the assembly and adjust the different elements, leading to increased costs and, most importantly, increased maintenance costs.

[Means to solve the problem]

The present invention has novel features or improvements centered around the following four basic points and is applicable to the automatic telescoping door described above.

■Using a single track for both low-speed and high-speed door panels.

2. Uses a very simple rotary package with a very robust construction to avoid the need for any adjustments.

3. Soundproof and fireproof door panels made of a single steel plate with added sound absorption devices.

4. Compact and removable frame with pre-assembled active elements for easy transportation from the factory to the job site, minimizing manufacturing and construction time.

One of the features of the invention is an automatic elevator door with a single sliding track common to both doors.

Similarly, the rotation means of each door, independent of the track,
On the other hand, the profiles of the doors are identical to each other and, together with the sealing between both profiles, i.e. the lateral edges of the doors, so as to give a fire-protected labyrinth structure. A suitable right angle bend is provided in the section.

As a further feature, the general assembly frame of the door has suitable profiles assembled together. The door can be disassembled to restore the assembly.

[Examples and effects]

By referring to the accompanying drawings, improvements of the present invention can be seen.
It can be understood how it can be applied to automatic telescoping doors for elevators. The automatic telescoping door is a low-speed door panel with 3
It has a single sliding track l for the door panel 2 as well as for the high speed door panel 2. The corresponding hanging metal support 4 of the door 3 is longer than that of the door 2. Therefore, the central part of the track 1 is left free for mounting the hanging bracket support 5 of the high-speed door 2. It can be seen from FIG. 1 that the hoisting cable 6 is connected to the counterweight 7 through a corresponding pulley wheel. Logically, the supports 4 and 5 move along a single track l on the basis of a rotating system, such as the one shown in FIGS. 2 and 3.

From FIG. 2 it can be seen that the guiding device or sliding track 1 has a rectangular shape and how it is connected to the general structural frame by friction, without mechanical or additional action of welded perforated plates. I understand. Conventional problems with alignment of two parallel tracks employed in conventional doors, as well as separators, screws, welds, etc., are thus avoided.

The rotating member or system shown in FIG. 2 is made up of a box 8 that contains and protects all the rotating members. Therefore, it is not necessary to employ side rollers and auxiliary rollers that are used in conventional designs and have inherent fragility.

This rotating package has a single part that is independent of the track 1 itself and is designed to automatically obtain the desired clearance for movement and to provide lateral movement without any adjustment. It includes all the members for fastening them to the support 5.

Rollers 9 and 1O, placed precisely at the top and bottom ends of track 1, are mounted inside box 8. These rollers are fastened with screws 11 and 2, respectively. Apart from their function as supports for the rollers, these screws also serve as means for fastening the unit, in other words the box 8 with all its parts, to the respective hanging bracket support 5 of the door.

The tonality of the structure described here is essential to obtain smooth movement of the door panel without jerk or resistance when reopening the door if an obstacle is encountered while the door is closing.

A variation of the embodiment of the rotation system is shown in FIG.

Here it can be seen that the track is made up of birds and uses several linear ball bearings I3 as roller means. Also, they are a corresponding box fastened to the door hanging bracket support 5 by screws 15! It can also be seen that it is located within 4.

A counter-rotating or sliding system results in a substantial simplification of assembly and a reduction in overall adjustment time.

The door track unit, rotating package and hanging hardware support are integrated into the door rung so that the same can be assembled and easily transported to the site.

Finally, FIG. 4 shows a schematic cross-section of two doors and 3 formed by sheet panels with identical profiles in both cases. As shown in FIG. 4, these sheet panels have six right angle folds. The right angle bends then form a sealing means and a fire labyrinth passage.

The profile of each panel or door 2 and 3 includes soundproofing elements. Despite their simple construction, these components provide the corresponding door panel with a very large noise-absorbing effect. The soundproofing material is a metal panel! 6
It consists of

The metal panel is entirely flat and very thin, and is fixed in the longitudinal direction to the middle 6 part of the panel 2, which is a noise absorbing member. Its fixation is done with adhesive. Its position is also held at the top and bottom by screws used to secure the door panel to the lower guide shoe metal support as well as to the sling support.

On the other hand, the door has a frame that can be easily assembled and disassembled, making it easy to transport to the construction site. Additionally, a large portion can be preassembled at the factory. Overall, therefore, installation and assembly times are considerably reduced.

Here, the explanation has been made using an elevator telescopic door having two panels as an example, but the present invention is also applicable to a four-panel door that opens in the center and has two speeds. Such a door is essentially a reconstruction of the door system described herein into a symmetrical door, combining two systems so as to open freely in two directions.

Similarly, the invention is applicable to vehicle doors and centrally opening doors without compromising its several advantages.

[Brief explanation of drawings]

1 is a front view of a two-leaf automatic telescoping door for an elevator; FIG. 2 is a sectional view of a rotating package of doors according to the invention; and FIG. 3 is a modification or alternative to the embodiment of the rotating package. The proposal, FIG. 4, is a schematic cross-sectional view of two profiles corresponding to the two doors shown in FIG. 1 with soundproofing elements. I...Truck, 2...High speed door, 3...
・Low speed door, 4, 5... Hanging bracket support 6...
Hoisting cable, 7... Counterweight 8... Box, 9.10... Roller 11.12... Screw IG-1

Claims (1)

[Scope of Claims] (1) Each rotating means is fixed to each support by a respective track, and at least two doors, one low speed and one high speed, are suspended from each support, and at least two doors are suspended from each support. In an automatic telescoping door system in which at least two of the doors are provided with a common single sliding track, and the means for rotating each door is provided with a single sliding track common to at least two of the doors; It consists of a unit that is independent of the track and fixed to the corresponding hanging bracket support of the door in question; furthermore, the profile of each door is identical to each other, and both doors are sealed to each other and have a fire-retardant labyrinth structure. Automatic telescoping door system, characterized in that the lateral ends of the doors are provided with suitable right-angled bends so as to be formed. (2) The automatic telescopic door system according to claim 1, wherein the rotating package sliding track having the rotating means is constituted by a horizontal rod-shaped body having a rectangular cross section. . (3) Automatic telescoping door system according to claim 2, characterized in that the rotating package sliding track with the rotating means is constituted by a bar of circular cross section supplemented by linear ball bearings. Automatic telescoping door system. (4) An automatic telescoping door system according to any one of claims 1 to 3, wherein the means for fastening the different members forming the rotating packages on the sliding track connects each rotating package to each suspension support of the door. An automatic telescopic door system characterized in that the means for fastening are identical. (5) The automatic telescoping door system according to any one of claims 1 to 4, wherein the suspension support of the low-speed door is longer than that of the high-speed door. (6) In the automatic telescopic door system according to any one of claims 1 to 5, a fine metal plate such as steel is attached to the center of the outer surface of each door in the longitudinal direction as a soundproofing means for each door. Automatic telescopic door system characterized by fixed.