| 摘要 |
A hinge device including: a bracket having a shaft hole; a shaft inserted through the shaft hole; a longitudinal insert home diametrically formed on one or both sides of the shaft and a pair of shoulder members formed centrally on the shaft with a fixed distance from one another. A first shoulder member is larger than the second shoulder member. A torsion spring is placed between the bracket and the shaft. A plurality of space washers having holes placed on one or both sides of the bracket. A plurality of disc springs have through holes which have protrusion members that insert into the insert home of the shaft when the shaft is inserted into the bracket. A guide washer having a through hole which has protrusion member that inserts into the insert home of the shaft when the shaft is inserted into the bracket. A nut screw onto the shaft to stabilize a horizontal position of the attached elements. A groove formed on the circumferences of the hole members in the direction that the hole members rotates contains lubricating oil which is evenly distributed to decrease the noise and wear.
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