JPS6214057Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a reinforcing structure for an elevator guide rail, and particularly to a reinforcing structure for a portion such as a car-side guide rail where an equipment bracket is attached to the back of the guide rail.

The elevator car and counterweight move up and down along a pair of guide rails fixed to the side wall of the hoistway via a rail bracket. If the car or counterweight is vibrated due to an earthquake or the like and collides with the guide rail, a horizontal force acts on the guide rail through the guide device, causing the guide rail to deflect, causing the car to collapse. Or, the counterweight may come off the guide rail. If the car is driven while detached, there is a risk that the car and the counterweight will collide, leading to serious accidents such as personal injury, and furthermore, it will take a lot of time to recover. For this reason, it is necessary to increase the seismic strength of the guide rail, and conventionally, as shown in Figs. The rails were being reinforced. However, the guide rail
There were equipment brackets for attaching the equipment inside the tower, joint plates for connecting guide rails, etc., and there was a drawback that the parts that could be reinforced were limited.
For this reason, conventional reinforcement requires measures such as adjusting the length of the guide rail so that the joint plate is not in the reinforced part, and also mainly on the counterweight side where the instrument bracket is not attached. The only thing that could be done was to reinforce the guide rails. Furthermore, existing elevators that do not take into account the guide rail arrangement described above have the disadvantage that conventional reinforcement is almost impossible.

An object of the present invention is to provide a reinforcing structure for elevator guide rails that improves the seismic resistance of any part of the guide rail, regardless of whether it is the elevator car side guide rail or the counterweight side guide rail.

Elevator guide rails are usually fixed to the hoistway wall via rail brackets, but in buildings with flexible structures, the mounting positions of the rail brackets are limited due to the structure. If the rail bracket mounting pitch exceeds the specified interval, the earthquake resistance of the guide rail will decrease, so it is necessary to use a guide rail with higher rigidity, but if the mounting pitch exceeds the specified interval in some parts For cost reasons, a method of reinforcing only that part with steel material on the back side (rail bucking) is used, but the guide rail is a fixed length (usually 5 m), and the connecting part is a joint plate. And its mounting bolts protrude from the back of the guide rail. or,
Instruments mounted within the tower are also attached to instrument brackets fixed to the back of the guide rail. As mentioned above, there are many protrusions on the back of the guide rail, and according to the conventional reinforcement method, it is necessary to escape from these parts. Therefore, a plan is made to eliminate as many protrusions as possible in the part to be reinforced. It was necessary. For this reason, it has been difficult to reinforce using conventional methods when the part requiring reinforcement is long or when the layout has not been considered in advance, such as in the case of an existing elevator.

The object of the present invention is to solve these problems and provide a reinforcing structure for an elevator guide rail that can arbitrarily reinforce any part of the guide rail.

The features of the present invention include a reinforcing steel material attached to the back of the guide rail, and a connecting bracket that connects and fixes the reinforcing steel material and the guide rail, and this connecting bracket allows a certain gap to be created between the guide rail and the reinforcing steel material. It has a reinforcement structure that allows reinforcement while avoiding protruding parts such as guide rail joint plates and instrument brackets.

An embodiment of the present invention will be described with reference to FIG. A guide rail 1 for guiding a counterweight or a car (not shown) is firmly attached to a rail bracket 5 fixed to an intermediate beam 10 or the like using a rail clip 3 and bolts 4. The guide rail 1 is connected by a joint plate 6 and joint plate fixing bolts 7. On the back of the guide rail 1 is an equipment bracket 8 for attaching tower equipment (not shown).
is fixed.

The guide rail reinforcement structure according to the present invention will be explained. A connecting bracket 9 is fixed to the guide rail 1 at an appropriate position in the vertical direction (a position where it escapes the protrusion on the back surface of the guide rail 1) with a rail clip 3 and bolts 4. This connection bracket 9 is connected to the joint plate 6 on the back of the guide rail 1,
The reinforcing steel material 2 is installed with a gap larger than the gap between the joint plate fixing bolts 7, the instrument brackets 8, etc. and the protrusions. The connection bracket 9 and the reinforcing steel material 2 are fixed by bolts or welding. Since the reinforcing steel material 2 is attached with a gap that avoids the protrusion on the back surface of the guide rail 1, any part of the guide rail 1 can be reinforced.
It is desirable to fix both ends of the reinforcing steel material 2 as close to the rail bracket 5 as possible, and the smaller the mounting pitch of the connecting bracket 9, the more the rigidity of the guide rail 1 improves, which is effective in improving earthquake resistance.

In the embodiments described above, the reinforcing steel material 2 is made of groove-shaped steel, but as shown in FIGS. 4 and 5, guide rails may be used as the reinforcing steel material. In this case, the connection bracket 9 and the reinforcing steel material 2 can be fixed with rail clips and bolts, so there is no need to drill holes in the reinforcing steel material in advance for passing the bolts through.
Reinforcement can be performed while freely avoiding protruding objects such as the instrument bracket 8 whose position is uncertain. In this embodiment, the guide rail was used as a reinforcing steel material, but it goes without saying that any structure that can be fixed with rail clips is sufficient. Furthermore, if reinforcing guide rails are used in conjunction, there is an advantage that the guide rails can be continuously reinforced.

According to this invention, any part of the guide rail can be reinforced, regardless of whether it is on the car side or the counterweight side, so only the necessary parts can be reinforced without replacing the entire guide rail with a large rail with high rigidity, resulting in low cost. Moreover, since it can be applied to existing elevators, it is extremely effective in improving the earthquake resistance of elevators.

[Brief explanation of drawings]

1 and 2 are sectional views of a conventional guide rail and reinforcing steel material, and FIGS. 3, 4, and 5 are sectional views showing an embodiment of the present invention. 1... Guide rail, 2... Steel material for reinforcement, 3...
...Connection bracket.

Claims (1)

[Scope of utility model registration request] A hoistway, a guide rail supported by a plurality of rail brackets fixed at predetermined intervals in the vertical direction of the hoistway, and a rail attached to the back of the rail to reinforce the guide rail or increase earthquake resistance. In an elevator guide rail made of steel members installed in parallel, the steel members are connected from the back side of the guide rail using a plurality of connecting brackets.
A reinforced structure for an elevator guide rail characterized by being installed with a gap maintained.