JPH08104485A - Guiding device for elevator door - Google Patents

Abstract

PURPOSE: To follow a wall in a groove even if the sill groove inside inner wall sizes are always different by inserting a guiding element into a guiding element housing container, attaching a housing container to the door lower end, making the guiding element freely extended and contracted in relation to the sill groove inside inner wall width in the horizontal surface. CONSTITUTION: A guiding element 12 wherein a permanent magnet 13 is fitted to a guiding element housing container 14 is inserted into the housing container 14. The guiding element housing container 14 is attached to an attaching fitting metal 7 by a shaft stop ring groove provided on the boss part on the upper surface of the attaching fitting metal 7. The attaching fitting 7 is fixed to a door 5 by a screw part of a door reinforcement 9a through an attaching position adjusting shim 8. When the attached guiding device is inserted into a groove 4a of a sill 4, the guiding element 12 is brought in contact with the sill groove inner walls 4b by the magnetic reaction of the permanent magnets 13. The contacted guiding element 12 can be freely moved in a guiding element freely moving chamber part 20 by the reaction of the magnets 13, so as to match the size between the sill groove inner walls 4b in the opening and closing directions of the door 5, thereby it can be freely inserted into the sill of the stage having the different sill groove inner wall size.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device for an elevator door which opens and closes a doorway along a threshold groove.

[0002]

2. Description of the Related Art An example of a conventional elevator door guide will be described with reference to FIGS.

FIG. 1 is a front view of the entire hall door on the hoistway side.

FIG. 2 is a sectional view taken along the line II of FIG.

In FIG. 1, 1 is a header device, 2 is a rail fixed to the header of 1, and 3 is a three-way frame (also called an entrance / exit frame), which is usually located on the wall of a building or on the side of a building such as a reinforcing bar of a steel building. Fixed. Reference numeral 4 is a sill, 4a is a guide groove provided on the upper surface of the sill, and 4b is an inner wall surface in the groove of 4a. 5 is a door,
It is suspended on the rail 2 by a suspension vehicle device 6 pivotally mounted on the upper portion thereof.

On the other hand, the door 5 is on the lower surface (sill surface side) side of the door 5.
There is a door reinforcement 9 that is fixedly attached to, and a mounting member 7 that is screwed and fixed is attached to the reinforcement 9 portion. The elastic member 1 is attached to the lower part of the mounting bracket 7 and the core bar for mounting the guide 11
The core metal is pierced and pressure-bonded to 1a, and the guide element 11 is pressure-bonded to the surface side of the elastic material 11a.
You will be guided along.

Further, the fitting 7 to which the guide 11 is fixed has a countersink portion 7a which is attached to the door reinforcement 9 with the attachment screw 10, and the screw 9a provided on the door reinforcement 9 is attached to the attachment position. When the mounting bracket 7 is screwed to the door reinforcement 9 with the mounting screw 10 through the adjusting shim 8, the guide element 11 is loosely fitted in the guide groove 4a as described above, and the inside of the threshold groove 4a is covered with the door 5. It slides with the movement.

If the guider 11 is further explained here, a synthetic resin material or the like is usually used for the portion corresponding to the guider 11, and the impact sound to the door 5 when the guider 11 is pressed against the inner wall 4b of the sill or the like. Elastic material 11a to absorb even a little
Is provided inside the guide element 11. The door 5 is provided with an engagement element (not shown) that engages with an engagement device (not shown) normally provided on the car side, and the car door (not shown) is provided.
Together with this, the opening / closing operation is performed.

By the way, since there is a slight gap between the outer surface of the guide element 11 loosely fitted in the central portion of the guide groove 4a and the inner wall 4b of the sill groove, it is difficult to adjust the mounting of the door 5. , The outer surface of the guide element 11 abuts or press-contacts with the inner wall 4b of the sill groove due to the movement of the cage door that is engaged and closed, so that the guide element 11 and the inner wall 4b of the sill groove wear due to friction. However, there has been a problem that the inner wall 4b of the threshold groove spreads over the years. Moreover, the wear of the inner wall 4b of the sill 4 tends to be different depending on the floors of the building, and therefore, for example, when the guide 11 is replaced or the landing sill 4 of the existing building is left. In the case of performing so-called modernization, etc. where the elevator is newly renovated, if the guide 11 does not make a new one that fits the inner wall 4b of the sill groove for each floor, the rattling will be great, and the impact noise will be large and the discomfort will be great. It was also a cause of the result of causing a problem in the opening and closing operation. Further, there is an inconvenience that requires human labor such that the inner wall of the sill groove must be measured for each floor, and there is a disadvantage in terms of cost to make a guide for each floor as described above.

As a means for solving such a problem, Japanese Utility Model Laid-Open No. 14273/1992 has been devised. In this prior art, a part called a holding plate is provided with an arcuate elongated hole, and at the same time, according to the present invention. The guide 11 to be described has a cylindrical shape (roller shape)
In the invention, the movable piece having the rollers arranged on the above-mentioned holding plate in two sets, one set each diagonally and axially fixed, is rotatable with respect to the inner wall surface of the sill groove. If an external force is applied to the door by the roller surface provided at the corner for some reason, or if it continues to be applied, the mounting bolts will loosen between the oblong holes in the holding plate to which the roller is attached. Slip occurs, the rollers diagonally attached are pushed back toward the center of the sill groove over time, and as a result, a gap is formed between the sill inner wall surface and the roller outer peripheral surface, and When the roller assembly is attached to the door, there is an inconvenience that the diagonal dimension of the roller cannot be determined unless the inner wall dimension of the sill is measured for each floor.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to allow a guide to always follow the inner wall of a groove even if the inner wall dimensions of the sill groove are different.

[0012]

DISCLOSURE OF THE INVENTION The present invention relates to a conventional free-fitting type guide (a sliding type guide having a slight gap between the inner wall of the sill groove and the guider) as a guide device for a door. In place of the guide, a storage for storing the guide is provided, and
As a means for inserting the guider into the storage and constantly sliding the guider against the inner wall surface of the inner wall of the threshold groove, a permanent magnet is fitted or crimped on the guider. The repulsive force was used as the device.

[0013]

[Operation] A mounting metal fitting in which a guide housing is provided, which has a guide that always protrudes toward the inner wall surface of the inside of the sill groove by the repulsive force due to the magnetic action of the permanent magnet that is fitted or crimped to the guide,
By mounting a guide device that is screwed and fixed to the door reinforcement with a mounting screw, it is possible to accommodate sills with different inner wall dimensions of the sill groove.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

In FIG. 3, FIG. 3 is a view of the lower end of the hall door as seen from the hoistway side. FIG. 4 is an enlarged sectional view taken along the line II-II of FIG. FIG. 5 is an enlarged view of a main part. FIG. 6 is a block diagram of the guide device of the present invention. FIG. 7 is a view along the line III-III of FIG. 6 with the mounting bracket 7 omitted.

In FIG. 3, 14 is a guider storage of the guide device according to the present invention, and the guider 12 and the permanent magnet 13 fitted to the guider 12 are inserted therein. As shown in FIG. 4, the parts are symmetrically divided and manufactured at the parting line 14a.

The storage 14 is made of a non-magnetic material so that the permanent magnet 13 can be inserted therein.

Further, as shown in FIG. 5, in the guide housing 14, the guide 12 and the guide idler hole 18 into which the permanent magnet 13 fitted to the guide 12 is inserted, and the guide. It has a locking hole portion 19.

As shown in FIG. 5, the guide 12 is formed in a substantially half-spherical shape, and the side 12 that does not contact the inner wall 4b of the threshold groove.
A fitting groove 13a into which the permanent magnet 13 is fitted is provided on the surface a, and a fitting protrusion is provided and fitted into the permanent magnet 13 fitted into the fitting groove 13a. In addition, the polarity of the permanent magnet is the storage box 1
Manufacture so that when they are attached to 4, they are on the same polarity side. (That is, by utilizing the characteristics that the back surfaces of the guides face each other on the same polar surface side, the repulsion causes the guides to always separate from each other.) In addition, the guide 12 and the permanent magnet 13 are fitted in the drawing. The fitting groove 13a is fitted to form one body, but the fitting groove 13a is fitted to each other.
It may be bonded as a smooth surface without being provided, or may be pressure-bonded to be integrated.

Further, the guide 12 is usually made of a synthetic resin material which is softer and slippery than the material of the sill 4.

Now, as shown in FIGS. 6 and 7, the storage case 14 is provided with a boss portion 15 (convex projection portion) facing the surface side of the fitting 7 having an L-shaped cross section. 15 is provided with a groove 15a into which a shaft retaining ring 16 can be inserted so that the guide fitting housing 14 can be held by being inserted and inserted into the mounting bracket 7.

In this portion, as shown in FIG. 4, the guides 12 in which the permanent magnets 13 are fitted in the guide storages 14 are inserted into the respective storages 14, and as shown in FIG. Are fitted to each other at the parting line 14a, the mounting fixing screw 21 is inserted, and the washer and the nut are tightened and fixed to complete the assembly of one set of the guide housing 14.

The assembled storage 14 is shown in FIGS.
As shown in FIG.
5 is inserted, the boss portion 15 is projected on the upper surface of the mounting bracket 7, and the shaft retaining ring groove 15a is provided in the shaft retaining ring groove 15a provided in the boss portion.
6 is inserted, and the mounting of the guider storage 14 to the mounting bracket 7 is completed.

As shown in FIG. 4, the mounting of the mounting member 7 having the L-shaped cross section having the guider housing 14 to the door reinforcement 9 is performed by the door 5 or the like.
For the door reinforcement 9 fixed to the
The threaded portion 9a of 0 is pre-threaded.

The mounting bracket 7 is fixed to the door 5 by inserting the mounting screw 10 into the countersunk hole 7a of the mounting bracket through the mounting position adjusting shim 8 and screwing it into the screw portion of the door reinforcement 9a. . In this way, the attached guide device is inserted into the groove 4a of the sill 4 as shown in FIG.
Are brought into contact with the inner wall 4b of the threshold groove by the mutual magnetic repulsion of the permanent magnets 13.

As shown in FIG. 4, the abutting guider 12 is
Since the repulsive action of the magnets described above allows the space between the guider floating chamber portions 20 to freely expand and contract in the opening / closing direction of the door 5 so as to match the dimension between the inner walls 4b of the sill groove, the sill of the present invention is provided. It is possible to freely insert the sill 4 on the floors having different inner wall dimensions of the groove to achieve the purpose.

Further, since the guide element 12 of the present invention is manufactured into a substantially halved spherical shape, the contact portion becomes point contact as compared with the surface contact method of the conventional sliding type guide element, so that the sliding friction area is reduced. Since it can be reduced, the running resistance of the door can be reduced.

If the material of the sill is magnetic, the guider 12 can be expected to come into contact with the inner wall 4b of the sill due to the magnetic effect of the magnet 13.

Although the description of the present invention has been given with reference to the hall door, the description is omitted because it can be applied to the car door.

[0030]

According to the present invention, since the width of the inner wall of the sill can be freely followed, the difference in the size of the sill groove between floors is not noticed and rattling noise is eliminated.

Further, since the sliding contact area is changed from the conventional surface contact to the point contact, the frictional force can be reduced and the running resistance of the door can be reduced, thereby reducing the output of the door motor for opening and closing the door. You can also do it.

[Brief description of drawings]

FIG. 1 is a front view of a conventional hall door as seen from the hoistway side.

FIG. 2 is a cross-sectional view taken along the line II of FIG.

FIG. 3 is a side view of a lower end portion of a landing side door as seen from the hoistway side, showing an embodiment of the present invention.

FIG. 4 is a sectional view taken along line II-II in FIG.

5 is an enlarged view of a main part of FIG.

FIG. 6 is a side view of the guide device of the present invention.

FIG. 7 is a view of the guide device taken along the line III-III in FIG.

[Explanation of symbols]

4 ... Sill, 4a ... Guide groove, 4b ... Inner wall surface, 5 ... Door, 7 ...
Mounting brackets, 12 ... Guide, 13 ... Permanent magnets, 14 ... Guide storage, 18 ... Guide idle hole, 19 ... Guide locking hole.

Claims (1)

[Claims] 1. A guide device for an elevator door, comprising a guide member that is attached to a lower end reinforcement of a door that opens and closes an entrance of an elevator and is loosely fitted in a guide groove provided in a sill. Is attached to a guider storage, the storage is attached to the lower end of the door, and the guider is configured to extend and contract with respect to the guide groove surface in a horizontal plane within the sill groove and inside wall width. Guide device for elevator doors.