Lid opening/closing apparatus

Abstract

A lid opening / closing apparatus is provided with a first lock mechanism (5) which maintains fully closed positions of lids (3a, 3b); a torsion coil spring (6) which accumulates urging force toward a lid opening direction; and a release button (4) for unlocking the first lock mechanism. When the release button is depressed, the lids are automatically opened. The lid opening / closing apparatus is also provided with a helical compression spring (9) which accumulates urging force for moving the lids from fully opened positions to certain positions in a closing direction, and a second lock mechanism(11) for maintaining the helical compression spring at a compressed position. When the release button is depressed at the fully opened position of the lids, the second lock mechanism is unlocked andthe lids move to a certain position in the closing direction. Then, by manually moving the lids to fully-closed positions, urging force is accumulated in the torsion coil spring and the helical compression spring.

Description

technical field [0001] The present invention relates to a lid opening and closing device, and more particularly to a lid opening and closing device suitable for a small item box in which the lid is stored in a storage portion when fully opened. Background technique [0002] For example, as a small item box provided on a center console of a car, etc., there is known a small item box provided with a cover whose one end is hinged to the opening surface of the article storage section. Since this cover protrudes when it is in the open state, it becomes an obstacle, so it is suitable to be stored on the outside of the side wall of the article storage part. However, if the cover is completely stored, the appearance becomes good, but due to the The free end (running end) falls from the opening face, thus presenting an obstacle to the closing operation. Therefore, it has been proposed to use a reversing spring that reverses the urging force in both the opening direction and the clos...

AI Technical Summary

Problems solved by technology

[0004] However, in this conventional structure, since the holding force of the open and close positions of the cover depends on the elastic force of the reversing spring, if the holding force is emphasized and the spring force is increased in order to avoid vibration of the cover in the fully open and fully closed positions, then The operating force required for opening and closing operations increases, and if the operating force is reduced, the holding force becomes insufficient. It is very difficult to coexist the operating force and the holding force.

Furthermore, the stroke for displacing the reversing spring to a position beyond the neutral point depends on the amount of operation of the button. Therefore, a push button is required for the stroke of displacing the reversing spring beyond the neutral point, and it is difficult to reduce the amount of operation of the button.

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