JPS5931652Y2 - Elevator guide rail connection device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a coupling device for elevator guide rails.

First, the conventional coupling device is gold. This will be explained with reference to FIG.

In the figure, 1 is an elevator hoistway, 2 is a guide rail erected along this, 2a is a guide portion of the guide rail 20, 2
b is a base, and 3 is a connecting plate disposed across the ends of the guide rails 2 arranged in series, and is in contact with the bottom surface of the base 2b.

Numeral 4 designates fasteners which are arranged at the ends of the guide rail 2 and are made of bolts inserted through the guide rails 2 and the connecting plate 3, and nuts screwed into the bolts.

That is, the guide rails 2 are connected to each other via the connecting plate 3 metal.

It is also necessary to provide the same strength and rigidity at the connection points of the guide rail 2 as in other parts of the guide rail 2.

Therefore, in order to increase the strength and rigidity 4 of the connection points with respect to the X-X axis shown in FIG. There was a problem that the interval became large and the effective space of the hoistway 1 became small.

Regarding the Y-Y axis of the spliced connection point, due to the play between the fastener 4 and its insertion hole, the bending moment is relatively small, and the guide rail 2 and the connecting plate 3 are moved in accordance with the amount of play. Since the sliding metal collects between the guide rails 2, the accuracy of erecting the guide rail 2 is hindered.

In order to prevent this, it is possible to increase the diameter of the fastener 4 to increase the tightening force, but this is limited by the width of the base 2b.

1. It is conceivable to increase the length of the connecting plate 3 along the length of the guide rail 2 by -J'2, but this would increase the manufacturing cost of the connecting plate 3 and make it difficult to arrange it while being supported by the leftover guide rail 2. There was a problem in that the installation position of other equipment (not shown) in the elevator was limited.

This invention is intended to overcome the above-mentioned drawbacks and to provide a connecting device for an elevator guide rail in which the strength and rigidity of the connecting portion can be easily obtained.

Embodiment 4 of this invention will be explained below with reference to FIG. 3.

All over the face, No. 1. The same reference numerals as the second one are made of the same parts, 3a is a fitting groove recessed in the connecting plate 3, 3b is a side wall of this, 5 is a screwed housing to the side wall 3b and passes through the guide rail 2 base 2b. This is a bolt that presses the gold on the side end surface.

That is, the ends of the guide rail 2 bases 2b arranged in series are loosely fitted into the fitting grooves 3a of the connecting plate 3, and are connected by the fasteners 4 through the connecting plate 3.

Since the side wall 3b is formed on the connecting plate 3,
- Strength and rigidity about the X axis can be increased.

Furthermore, since the thickness of the connecting plate 3 is not increased 4, the required space 4 for the connecting portion in the hoistway can be reduced.

The strength and rigidity regarding the Y-Y axis are increased because the bending moment in this direction is supported by the first side wall 3b through the bolt 5, and the fastener 4 and this fastener 4 are inserted. Guide rail 2 base 2b.

Due to the gap between the through holes of the connecting plate 3, it is possible to prevent the guide rail 2 and the connecting plate 3 from shifting due to a large load, and to prevent bending of the connecting part of the guide rail 2, making it possible to easily support large loads. 3. Moreover, since there is no need to make the long length of the connecting plate 3 particularly long, it is possible to avoid an increase in manufacturing costs and restrictions on the mounting position of other elevator equipment. Since the pressure is adjusted using the gold bolts 5 on the measuring end surface, the guide rails 2 can be connected with good straightness without having to perform precise machining of the measuring end surfaces, and the guide rail can be made with low machining costs. .

As explained above, in this invention, the ends of the guide rails arranged in series on the connecting plate are loosely fitted into each other, and a slotted groove is provided, and a fastener is inserted through the overlapping part of the guide rail base and the connecting plate to connect the guide rail base. The ends of the guide rail are connected to each other through a metal connecting plate, and the connecting plate is screwed into the side wall of the groove and pressed against the guide rail end measurement surface metal.

As a result, the strength and rigidity of the guide rail connection points can be easily improved, and in particular, the bolts that press the guide rail end measurement surface 4 can cause large loads due to the gaps between the fasteners and the guide rail base or the through holes of the connecting plate. This method prevents misalignment between the guide rails and connecting plates caused by the bending of the joints between the guide rails, and connects the guide rails with good straightness without machining the guide rail end faces. The present invention provides an elevator guide rail coupling device that is inexpensive, has fewer restrictions on the arrangement of elevator equipment, and is capable of doing so.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional plan view of a guide rail installed using a conventional elevator guide rail coupling device, Figure 2 is a front view of Figure 1, and Figure 3 is an elevator guide rail according to this invention. FIG. 1 is a view corresponding to FIG. 2... Guide rail, 2a... Guide section,
2b...Base, 3...Connection plate, 3a.
...Inset groove, 3b...Side wall, 4...
...Fascinators. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] Each end face 4 has guide rails arranged in series facing each other, a connecting plate having a large groove that overlaps the bottom surface of the base of the end of each of the guide rails and is loosely fitted into the base, and the guide rail and the connection plate. The ends of the guide rails are inserted in the overlapping parts of the plates, and the connecting sheet metal pieces are arranged in series. The ends of the guide rails are connected to each other by metal fittings, and the fasteners are screwed into the side walls of the insertion grooves and twisted to form the side walls of the double opening. A connecting device for guide rails for double flats, which includes bolts and metal fittings that respectively press both side end surfaces of the base of each of the ends of the guide rails arranged in series.