KR940002544Y1 - Escalator handrail driver - Google Patents

Abstract

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Description

Handrail Drive of Escalator

1 is an overall schematic diagram of an escalator.

2 is a schematic view of a drive unit of an escalator.

3 is a conventional perspective view.

4 is a front view of the present invention.

5 is a side view of the present invention.

6 is a top view of the solenoid stopper.

* Explanation of symbols for main parts of the drawings

16: piston rod 20: spring body

21: Push Rod 22: Solenoid

22a: Stopper 23: Hydraulic device

The present invention relates to a handrail driving device of an escalator. In particular, the narrow pressure that drives the handrail does not work when the escalator is not driven, thereby preventing the occurrence of roller marks on the handrail surface. It is an object of the present invention to provide a handrail driving device of an escalator which can protect a chain by reducing tension of a driving chain of a rail driving device.

In general, an escalator is a device that carries passengers continuously in place of the stairs of the building, as shown in Figs. 1 and 2, the step 1 and the handrail 2, and the rails 3 and the guiding staff. The operation of the panel 4 and the frame 7 and the escalator, the driver 5, the terminal gear 6, the drive chain 8, and the handrail driving device 28, will be described. As shown in FIGS. 1, 2 and 3, the rotational force generated by the driver 5 is transmitted to the terminal gear 6 through the drive chain 8 to the step 1 and the handrail driving device 28. FIG. Delivered.

The rotational force transmitted to the handrail driving device 28 is transmitted to the chain 12 and the rotational force transmitted to the chain 12 acts as a narrowing force by the tension of the chain 12 and the weight of the plate 25. (2) is being driven.

Therefore, even when the escalator is not driven, the driving roller 13 is pressed against the surface of the handrail by always pressing the surface of the handrail 2 by the weight of the plate 25 and other components (drive roller 13, sprockets, etc.) attached thereto. ) Marks are severely generated to impair the aesthetics of the handrail, excessive tension is also generated in the chain 12, and excessive force is applied to the case that the chain 12 is broken.

Therefore, the present invention is a piston rod operated by a hydraulic device. The driven roller pushes the driving roller at a proper pressure to generate a narrow pressure, and the stopper supports the push rod by the operation of the solenoid to prevent the hydraulic device from being overloaded. Appropriate narrowing is made, and when the driving stops, the driven roller is dropped to its lower part by the release of the stopper by the solenoid and gives excessive force. In providing a rail drive.

Hereinafter, described in detail by the accompanying drawings as follows.

In the lower part of the driving roller 13 arranged on the upper part of the plate 25 as shown in Figs. 4 to 6, the base 11, which arranges the driven roller 16, is lifted and guided by the guider 29 of the plate. At the center of the base 11, the hydraulic device 23, through which the piston rod 26 coupled with the push rod 21 is fixed, is lifted and fixed to the plate 25, and the base 11 is fixed. A spring 20 is installed between the rod and the push rod 21, and a piston rod 26 is provided by a solenoid 22 having a stopper 22a having a U-shaped groove at the tip of the hydraulic device overload prevention end. It is configured to be inserted into and inserted into.

Looking at the operating state of the present invention configured as described above, 4 and 5 are a front view and a side view in the driving state of the handrail, the push rod 21 is raised by the hydraulic device 23 is a stopper ( 22a) supports the spring 20 while preventing the overload of the hydraulic system in the state supported by the base, and the base 11, which has the driven roller 16 installed by the spring 20, has a resilient force and the driving roller 13 By applying a narrow pressure to the hand rail (2) interposed therebetween and does not apply excessive force, especially when the driving stop of the escalator, that is, the stop of the hand rail (2) by the solenoid 22 by the stopper (22a) ), The push rod 21 is lowered from the point b to the point a as shown in FIG. 5 by the load of the base 11 and the hydraulic device, so that the driving roller 13 and the driven roller 16 are eventually driven. Have a certain amount of space (h) The base 11 is guided to the guider 29 and spaced apart downward.

Of course, at the time of restarting, the piston rod 26 is raised by the hydraulic device 23 in the state in which the stopper 22a is reversed, and then the stopper 22a is advanced by the solenoid 22.

The present invention, which is constructed and operated as described above, does not drive the escalator by switching from the method of applying the tension of the chain and the narrow pressure by the weight of the plate and its accessories in the conventional handrail device to the method of the action of the hydraulic device and the spring body. When it is not, it prevents the marking of the driving roller generated on the surface of the handrail and reduces the tension applied to the chain, thereby protecting the chain and extending the life.

Claims (2)

The base 11, on which the driven roller 16 is mounted, is guided by the guider 29 installed on the plate 25, and the piston rod 26 of the hydraulic device 23 installed under the base 11 is maintained at the base. Handrail drive device of the escalator, characterized in that the stopper means is installed between the push rod (21) and the base installed in the piston rod and the base and the stopper means for preventing overload of the hydraulic device. The stopper means has a U-shaped groove at the distal end of the stopper 22a of the solenoid 22 fixed to the back of the plate, and protrudes when the push rod 21 rises to offset the load of the hydraulic device. Hand base driving device of the escalator, characterized in that the base is lowered by its own load to remove the narrow pressure of the driven roller (16).