Electric chain door

Abstract

The invention provides an electrical chain door which can improve the mounting structure of the driving part in the doorjamb and noise can be lowered effectively, comprising the following parts: two doorjambs (1) are separated with the distance enabling vehicles to go through; a chain is arranged at the height where vehicles can be stopped between the two doorjambs; a hanger component (9) connected to one end of the chain is supported to the status of hanging by the hanging component (31) and can move up and down with the movement of the electrical motor (21). The electrical chain door is characterized in that the electrical motor, the reducer and other accessories are unitized together. The motor unit (20) is generally horizontally fixed on a supporting disk (16) in the upper part of the doorjamb by a plurality of shockproof rubbers.

Description

technical field [0001] The invention relates to an electric chain gate installed at entrances and exits such as parking lots or plazas. Background technique [0002] In the past, as this kind of electric chain gate, two gateposts were separated according to the prescribed distance that vehicles could pass. (Hereinafter, they are collectively referred to as chains) It is known that only specific vehicles such as contract vehicles can pass by erecting the chains on at least one gate post at a height that prevents the passage of vehicles. [0003] In addition, various mechanisms for vertically moving the aforementioned chains have been proposed and put into practical use. As an example, in Japanese Patent No. 2965250, it is disclosed that a driving part composed of an electric motor and a speed reducer is arranged on the upper part of the doorpost, and a suspension member such as a chain or a belt is wound around the driving part driven by the driving unit. On a rotating body...

AI Technical Summary

Problems solved by technology

[0004] However, there is a problem in the above-mentioned existing structure that the driving part is installed on the outer cover of the door post or the frame member inside it by bolts or the like, so the vibration or noise generated by the driving part is easily transmitted to the door post. The outer cover, where the amplified noise becomes loud and diffuses to the outside

Also, in the case where chains are used as suspension members and guide rollers are used to guide the up and down movement of hook members or lifting members, their operation sounds cause noise.

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