Device for opening and closing manuscript crimping plate and office apparatus equipped therewith

Abstract

A manuscript pressing plate switching device is provided. The manuscript pressing plate switching device has an installing component, a supporting component, a sliding block, a cam component and a flexible component. The installing component is installed on the device main lateral body; the supporting component is rotatablely installed on the installing component for supporting the manuscript pressing plate; the sliding block is provided in the supporting component in sliding way; the cam component and the sliding block are provided on the installing component in contacting way; the flexible component is provided between the sliding block and the supporting component; the characteristics of the manuscript pressing plate switching device is that any one of the sliding block and the cam component is provided with a embedding concave portion; another one is provided with an inserting convex portion embedded with the embedding concave portion; at least one of the embedding portion and the inserting convex portion is provided with a rotating control portion.

Description

technical field [0001] The present invention relates to a document presser opening and closing device suitable for use in office equipment having a document presser, such as copiers, printing machines, facsimile machines, and scanners, and the office equipment with the document presser. Background technique [0002] On the equipment main body of office equipment such as copiers, printing machines, facsimile machines, scanners, etc., the original press plate is installed on the upper surface rear of the equipment main body in an openable and closable manner via the original press plate opening and closing device. the upper surface of the platen glass. The original platen opening and closing device is a hinge mechanism, which supports the original platen so that the original platen can rotate around the hinge shaft, so that the original platen can be closely attached to the platen glass on the upper surface of the main body of the equipment, and the platen glass can be expose...

AI Technical Summary

Problems solved by technology

However, especially when the original platen is heavy with an automatic document feeder, there is a fear that the original platen will rotate faster and the original platen will hit the platen glass violently.

Therefore, various methods such as installing a damping device have been adopted, but all of them have resulted in increased production costs, or poor operating feeling when opening and closing the original pressure plate, so an original pressure plate with a braking function is being sought device, without increasing production cost, simple structure, and does not affect the feeling of opening and closing operation

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