FI107251B - Door construction for stopping floor for a lift - Google Patents

Description

107251

LIFT LEVEL DOOR STRUCTURE

The invention relates to an elevator level door structure as defined in the preamble of claim 1.

5 Traditionally, the lift-level door fastening is arranged from both the lower and upper end of the door directly into the building. In other words, the threshold is fixed to the lower edge of the door opening and the upper bracket is separately attached to the upper edge of the door opening. The disadvantage of such a structure is, above all, the dependence of the upper bracket attachment on the operating environment of the elevator, the shaft of the elevator, the construction material choices and the structural solutions. An advantageous case for fixing is a concrete walled elevator shaft, where it is possible to make the fixing at any desired position, for example with wedge anchors. Both the threshold and the top bracket must be separately fixed and accurately measured.

There are also known solutions in which the attachment of the upper door-nail of the level door occurs to a secondary structure attached to the building when the wall structure of the elevator shaft is unsuitable for attachment. For example, in steel-structured shafts, the wall structure is often made of gypsum board and a steel H-shaped frame is used to fasten the top door bracket 25, with vertical pillars located on the sides of the door opening and a horizontal beam mounted above the door opening. Such a frame is generally attached at its lower end to a level plate and at its upper end to a level plate supporting structure, such as a steel beam. Such- The frame-like body requires a lot of elevator-specific design work, e.g. fastening and fire protection is expensive to manufacture and difficult to install.

In general, there are problems and difficulties in mounting the level door because it is difficult to find good anchorage points for both the sill and the upper bracket, the shaft dimensions and verticality are practically different from the design, and nevertheless the door openings must be exactly straight and aligned . In addition, there are changes in the dimensions of the elevator shaft in accordance with the laws of building physics, which, especially in the vertical direction of the building, may also cause harmful transitions to the elevator level door when utilizing existing door structures.

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Also known is the solution mentioned in JP A 1-308386, which discloses a lift-level door structure comprising a threshold, an upper bracket, vertical frames attached to the threshold and a top bracket, and a door leaf movable on the upper carriage. It is known to fasten the door structure with a suitable and rigid upper end extending upwards from the upper bracket of the vertical frames to the wall of the elevator shaft or the like.

20

The object of the invention is to eliminate the above-mentioned drawbacks. In particular, it is an object of the present invention to provide a novel elevator level door structure which is as simple and inexpensive as possible to manufacture and install.

As regards the features characterizing the invention, reference is made to the claims section.

A threshold fixed to the lower edge of the level door opening, an upper bracket and at least one door leaf arranged to move on the upper bracket is deflected into the elevator structure of the elevator according to the invention. The threshold fixed to the plane plate and / or supporting structure 3 5 according to the invention has vertical frames attached to both sides of the door opening, on which the top carrier f is fixed. In other words, the vertical frames are supported by their lower part for support on the threshold and immobile in horizontal directions. In addition, the vertical frames are supported at their upper end horizontally, but at the same time vertically or flexibly 5 so that the vertical movements of the shaft structure do not affect the position or function of the door. The height position of the upper bracket is thus dependent only on the threshold, which also receives the weight of the door leaves and the upper bracket.

10

Preferably, the upright frame is supported at its upper end by a second threshold at the bottom of the door opening of the overlying layer. The support may be implemented as a direct attachment to one of the thresholds or through a vertical frame attached to the second threshold.

In one embodiment of the invention, the upright frame extends below the threshold attachment point so that downward from the threshold, the upright frame forms a lower leg on which the upper end of the upright frame at the lower edge of the door opening can be supported.

Vertically extending vertical frames 25 may be joined, secured, or supported, to the sill and to each other in a variety of ways. It is only essential that the joints guarantee the vertical stability of the vertical frames, but allow the vertical movements of the building and transfer the vertical loads from the upper bracket to the threshold of the same door opening. Thus, the joint may be formed by a suitable sleeve which surrounds the vertical profiles or by a suitable compression joint in which the vertical bodies are locked between two elements to be pressed towards each other. It is also essential that the vertical frames 35 are not in full contact with each other, but leave a suitable gap between the vertical frames allowing both vertical movements of the building and reasonable dimensional deviations within the building and / or the riser frame. Various rigid profiles, such as U-profile, H-profile, T-profile or circular or angular tubular profile 5 or other structure consisting of one or more parts forming a bending rigid assembly may be used as the vertical frame.

It is also possible, within the scope of the inventive idea, for the vertical frame to be supported directly from its upper part into the kuild-10 structure. This is especially true in the case of an elevator with a top-level door structure similar to applications with particularly large floor spacing or where there are floors in the building's elevation height that are not supported by his / her-15th level door and thus the corresponding threshold. Mycjs then uses a structure that is rigid in the horizontal plane and suitably yielding in the vertical direction.

Preferably, the vertical frame is attached to the end of the sill. Likewise, preferably, the top bracket is secured between the two vertical frames of the headstock, although depending on the mounting space used and the profile of the vertical frame used, the mounting may also be otherwise arranged such as through a connector or at a position in the elevator shaft that the previously described joints are completed.

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The elevator-level door structure according to the invention offers significant advantages over prior art. The door structure is very simple and easy to stop. Once the door openings on the landing shaft level door openings have been measured and secured in place, no further fastening to the shaft structure is required. Vertical Runners have precise attachment points, for example holes, 107251 5 for both the sill and the top bracket. In this way, the door structure can easily be dimensioned accurately in site conditions. The elevator level door structure according to the invention facilitates in particular the fastening of the upper bracket in buildings which by their construction and / or material choices do not allow fastening directly to the shaft wall. The door structure is also advantageous in terms of space, especially when the vertical frame is located at the end of the threshold.

The invention will now be described in detail with reference to the accompanying drawing, which schematically shows an elevator level door structure according to the invention.

The drawing schematically illustrates an embodiment of the invention in two levels. For the sake of clarity, the other parts of the elevator are not shown and only the level tiles of the building are shown. In addition, a lower part of the third level door structures is illustrated to illustrate the continuity of the structure.

In the door structure, a threshold 1 is secured to the lower edge of the level door opening by means of fasteners 7. A corresponding threshold 25 5 is attached to the lower edge of the upper level door opening by means of fasteners 8. Thereafter, a vertical rigid vertical frame 4 is attached to the end of the threshold 1 and a similar vertical frame is also attached to the other end of the threshold 1. Thus, the threshold 1 enters between the vertical frames 4. Similarly, an upper bracket 2 is fastened between the vertical frames 4 above the door opening. The vertical frame 4 has pre-dimensioned mounting holes or corresponding mounting points for both the sill 1 and the upper bracket 2, so that no measurements are required when installing the upper bracket.

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Correspondingly, at the upper level, to the threshold 5, vertical column frames 6 and • <4,61072Ö1 are secured at both ends to the upper bracket 9 between the vertical brackets 9. The upper brackets;

5 The vertical frames 4 or the upper bracket 2 are not directly attached to the building at any point. In its place, the vertical frames 4 are supported at their upper end to the threshold of the next plane by means of suitable clamping connectors for the profiles 4 and 6, i.e. plate-like support 10, and a suitable counterpart 11 inside the profiles 4 and 6. These parts are pressed against each other by bolt 12. the upper end and the lower end of the vertical frame 6 are trapped between them. In this way, a vertical rigid connection is made between the vertical frames 4 and 6, which nevertheless bends as required in the vertical direction. At the same time, the height position of the top bracket 2 is dependent only on the position of the threshold 1 and the height position of the top bracket 9 is dependent only on the position of the threshold 5.

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That is, in the embodiment of the figure, with the same bolt 12 securing the vertical body 6 to the threshold 5, the support body 10 and the counter body 11 are clamped and pressed against one another, thereby lowering the lower body jci 25 of the vertical body 4 and squeezing between the support body 10 and the counter body 11 .

Thus, the total weight of the iron door elevator level door structure of the invention is transmitted through the same door opening threshold fasteners 30 to the building with the top of the door structure supported only horizontally through the upper level door sill threshold fastenings to the building.

When the vertical frames 4 and 6 form a continuous continuous structure 35, they preferably function as cables for running in a trench or shaft.

7 107251

The invention has been described above by way of example with reference to the accompanying drawings, in which various embodiments of the invention are possible within the scope of the claimed inventive concept.

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Claims (11)

107251 An elevator level door structure comprising a threshold (1) attached to the lower edge of a level door opening, 5. an upper bracket (2), at least one door leaf (3) movable on the upper bracket, and vertical frames (4) attached to the threshold (1). in which the upper bracket is fixed, characterized in that: - the vertical frames (4) are rigidly supported on their upper side in a horizontal plane, and - the vertical frames (4) are supported vertically in their upper part. 15 Door structure according to claim 1, characterized in that the vertical frame (4) is supported from its upper part to the vertical frame (6) supported on the upper level threshold (5). A door structure according to claim 1, characterized in that the stop frame (6) supported by the upper level threshold (5) comprises an extension extending below the point of attachment of the threshold (5) to which the lower vertical frame (4) is supported. 25t Door structure according to claim 1, characterized in that the upright frame (4) is supported at its upper part by a threshold cradle (5) attached to the lower edge of the upper level door opening. 3 0 Door structure according to claim 1, characterized in that the vertical frame (4) is supported from its upper part directly into the shaft structure. Door structure according to one of Claims 1 to 5, characterized in that the vertical frame (4) is attached to the end of the threshold (1). •> i 107251 Door structure according to one of Claims 1 to 6, characterized in that the upper bracket (2) is fastened at its ends between two vertical frames (4). 5 Door structure according to one of Claims 1 to 7, characterized in that the vertical frame (4) is supported in at least one direction directly to the shaft structure in the region 10 between the threshold (1) and the upper level threshold (5). Door structure according to one of Claims 1 to 8, characterized in that the vertical frame (4) is supported at least in one direction directly from the lower end into the shaft structure. Door structure according to one of Claims 1 to 9, characterized in that the upper bracket (2) is supported in at least one direction directly to the shaft structure. 20 Door structure according to one of Claims 1 to 10, characterized in that the vertical frames (4,6) form a continuous continuous structure which acts as a guide channel. 25 Λ • '107261