JP2005225629A - Guide rail for household elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide rail for a household elevator capable of reducing the generation of local vibration during travelling of an elevator car due to a stage difference generated in joint parts of the guide rail. <P>SOLUTION: Steel plates are respectively bent for molding, and joined with each other in the height direction to form the guide rail 8. This guide rail 8 is provided with a guide rail fitting metal 9 provided in each of joint parts of the guide rail 8 to connect both of an upper and a lower guide rails to each other, riding over the both, a rail joint plate 13 provided in a joint part of a guide roller rolling surface 8a of the guide rail 8 to join the guide rails, riding over the both, and oblique cut parts 15 formed by obliquely cutting both of joint end of the guide roller rolling surfaces of the upper and the lower guide rails and bonding to each other. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a guide rail for a home elevator used for a general house.

Conventional home elevators used for ordinary homes are formed by bending steel sheets to reduce the weight of the equipment and reduce costs, and connect a certain length in the height direction as a guide rail. Often used. A guide rail mounting bracket is provided at the connecting portion of the guide rails, but the guide rail mounting bracket is not a structure for suppressing the guide roller rolling surface. A guide roller is attached to the cab, and the guide roller is structured so that the cab moves up and down in the hoistway along the guide rail.
In addition, as a conventional technique, an inner rail material having a substantially U-shaped cross section is superimposed on an outer rail material having a substantially U-shaped cross section so that a step does not occur in a joint portion of a plurality of rail materials. A guide rail of an elevator in which three rollers of a roller guide roll on three inner surfaces of the inner rail member, and a first protruding portion of the first inner rail member protruding from the first outer rail member is a second inner portion. An elevator guide rail has been proposed in which the first projecting portion and the second projecting portion are connected to each other by a coupling tool, superimposed on the inner side of the second projecting portion of the second outer rail material protruding from the rail material. (For example, refer to Patent Document 1).

JP 2001-130852 A

In conventional home elevator guide rails, since the guide rails are bent and molded products of steel plates, there are steps on the roller rolling surface due to poor bending accuracy of single products, poor mounting, and elastic deformation due to load in the cab. There was a problem that the vibration of the cab was generated.
Moreover, the prior art described in Patent Document 1 requires four types of rail materials to be prepared, resulting in high costs and problems in component management.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to reduce local vibration during traveling of the cab due to a step generated at the joint portion of the guide rail. The present invention provides a guide rail for a home elevator that is made possible.

  The guide rail of the home elevator according to the present invention is formed by bending a steel plate and connecting it in the height direction to form a guide rail. It is provided at the connecting part between the guide rail mounting bracket that connects both of them and the guide roller rolling surface of the guide rail, and connects the upper and lower guide roller rolling surfaces across the upper and lower guide rails. A rail connecting plate is provided.

  Also, a guide rail mounting bracket that is provided at the connecting portion of the guide rails and connects both the upper and lower guide rails, and a guide roller rolling surface of the upper and lower guide rails at the connecting portion of the guide rails. The joining end portions are obliquely cut and provided with oblique cut portions joined to each other.

  Furthermore, it is provided at the connecting portion of the guide rails, provided at the connecting portion of the guide rail mounting surface between the upper and lower guide rails and the guide roller rolling surface of the guide rail, and connected between the upper and lower guide rails. In the connecting part of the guide rail and the rail connecting plate for connecting the upper and lower guide roller rolling surfaces across the guide rails, the connecting end of the guide roller rolling surface of the upper and lower guide rails is slanted It is provided with an oblique cut part cut and joined to each other.

  The present invention provides a guide roller rolling device by providing a rail connecting plate for connecting the upper and lower guide roller rolling surfaces across the upper and lower guide rails at the connecting portion of the guide roller rolling surfaces of the guide rail. Guide rails can be joined together without shifting the running surface. Further, even when the bending accuracy of a single product is poor, since it is a steel plate bending rail, it is possible to attach the rolling contact surface by elastic deformation by the rail connecting plate. Further, in the past, a great deal of time was spent at the time of attachment work to align the guide roller rolling surfaces of the guide rails. However, the adjustment time can be greatly reduced by the presence of the connecting plate. In addition, even when the cab is running, vibrations due to steps are reduced because the rolling surfaces are matched, and even if a load from the cab is applied to the guide rail through the guide roller, the rail connecting plate elastically moves up and down at the same time. There is an effect that it is deformed and does not cause a step.

  In addition, the guide roller has a stepped rail by providing an oblique cut portion where the joint end portions of the guide roller rolling surfaces of the upper and lower guide rails are obliquely cut and joined to each other at the joint portion of the guide rail. When passing through the joint portion, the step over the step of the guide roller becomes smoother than before, and the impact when the step over is reduced, which is extremely effective in reducing the vibration of the cab.

Embodiment 1 FIG.
1 is a longitudinal sectional view showing the entire configuration of a home elevator according to Embodiment 1 of the present invention, FIG. 2 is an enlarged sectional view showing an exploded guide rail and a mounting metal, and FIG. 3 is an enlarged view of a joint portion of the guide rail. FIG. 4 is an enlarged side view showing the joint portion of the guide rail, and FIG. 5 is a cross-sectional view of FIG. 4 showing the relationship between the guide rail and the guide roller.

  Hereinafter, the guide rail of the home elevator in Embodiment 1 of this invention is demonstrated. In the figure, 1 is a hoistway, 2 is a cage room, 3 is a hoisting type hoisting machine provided at the lower part of the hoistway 1, 4 is a return wheel provided at the upper part of the hoistway 1, 5 is a hoisting rope, 6 is a landing door, 7 is a cab door, and 8 is a guide rail that stands up and down in the hoistway 1 and guides the cab 2 up and down. The guide rails are connected in the vertical direction. 9 is provided at the connecting portion of the guide rail 8, and a guide rail mounting metal for connecting the guide rail 8 between the upper and lower guide rails, and 10 and 11 are for fastening the guide rail mounting metal 9 and the guide rail 8. Bolts and nuts 12 are guide rollers that roll on the guide roller rolling surface 8a of the guide rail 8, and 13 is provided at the connecting portion of the guide roller rolling surface 8a of the guide rail 8 between the upper and lower guide rails. A rail connecting plate for connecting the upper and lower guide roller rolling surfaces 8a with high accuracy, and is attached by a small bolt 14. Reference numeral 15 denotes a joining portion of the guide rails 8, which is an oblique cutting portion obtained by obliquely cutting and joining the joining end portions of the guide roller rolling surfaces 8 a of the upper and lower guide rails 8. In the figure, 16 is an emergency stop device and 17 is a shock absorber.

  According to the first embodiment of the present invention, the upper and lower guide roller rolling surfaces 8a are accurately connected to the joining portion of the guide roller rolling surfaces 8a of the guide rail 8 across the upper and lower guide rails. By providing the rail connecting plate 13, the guide rail 8 can be connected without the guide roller rolling surface 8 a being displaced. Even if the bending accuracy of a single product is poor, since it is a steel plate bending rail, it can be elastically deformed by the rail connecting plate 13 and attached together with the rolling surface 8a. Further, in the past, a great deal of time was spent at the time of attachment work, and the guide roller rolling surface 8a of the guide rail 8 was aligned, but the adjustment time can be significantly reduced by the presence of the connecting plate 13. Further, even when the cab is running, vibrations due to the steps are reduced because the rolling surfaces are matched, and even if a load from the cab is applied to the guide rail 8 through the guide roller 12, the rail connecting plate 13 Are elastically deformed at the same time, and there is an effect that no step is generated.

  Further, in the joining portion of the guide rail 8, the joining roller end surfaces of the guide roller rolling surfaces 8a of the upper and lower guide rails 8 are obliquely cut, and the oblique cutting portion 15 joined to each other is provided, whereby the guide roller 12 is provided. When passing through the rail connecting portion having a step, the step over the step of the guide roller 12 becomes smoother than before, and the impact at the time of overcoming becomes small, which is extremely effective for reducing the vibration of the cab.

It is a longitudinal cross-sectional view which shows the whole structure of the home elevator in Embodiment 1 of this invention. It is a schematic block diagram of a home elevator. It is an expanded sectional view which decomposes | disassembles and shows a guide rail and an attachment metal. It is a front view which expands and shows the joint part of the guide rail of the home elevator in Embodiment 1 of this invention. It is a side view which expands and shows the joint part of the guide rail of the home elevator in Embodiment 1 of this invention. It is a cross-sectional view of FIG. 4 which shows the relationship between a guide rail and a guide roller.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Cage room 3 Winding type hoisting machine 4 Return wheel 5 Hoisting rope 6 Landing door 7 Cage room door
8 Guide rail
8a Guide roller rolling surface 9 Guide rail mounting bracket 10 Bolt 11 Nut
12 Guide roller
13 Rail connecting plate
14 Small bolt 15 Diagonal cutting part
16 Emergency stop device
17 Shock absorber

Claims (3)

In the guide rails of home elevators, which are formed by bending steel plates and connecting them in the height direction to make them guide rails,
Provided at the connecting portion of the guide rail, provided at the connecting portion of the guide rail rolling surface of the guide rail and the guide rail mounting bracket for connecting both the upper and lower guide rails, and the upper and lower guide rails. A guide rail for a home elevator comprising a rail connecting plate for connecting the upper and lower guide roller rolling surfaces across the rails. In the guide rails of home elevators, which are formed by bending steel plates and connecting them in the height direction to make them guide rails,
A guide rail mounting bracket that is provided at a connecting portion of the guide rails and connects both the upper and lower guide rails, and a guide roller rolling surface of the upper and lower guide rails at the connecting portion of the guide rails. A guide rail for a home elevator, characterized in that the connecting end portion is obliquely cut and joined to each other. In the guide rails of home elevators, which are formed by bending steel plates and connecting them in the height direction to make them guide rails,
Provided at the connecting portion of the guide rail, provided at the connecting portion of the guide rail rolling surface of the guide rail and the guide rail mounting bracket for connecting both the upper and lower guide rails, and the upper and lower guide rails. In the rail connecting plate for connecting the upper and lower guide roller rolling surfaces between the rails and the connecting portion of the guide rail, the connecting end of the guide roller rolling surface of the upper and lower guide rails is inclined. A guide rail for a home elevator comprising an oblique cut portion cut and joined to each other.

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