To obtain a hinge structure of an opening/closing casing for electronic apparatus in which a waterproof packing at the fitting part of casing can be compressed vertically so that it can be protected against being twisted or caught.
A hinge pin for connecting an opening/closing lid and a body as the center of rotation, and an offset groove where the lid can move perpendicularly to the axis of hinge pin are provided such that a packing can be compressed in the vertical direction by offsetting the lid hinge part thus obtaining a structure for protecting the packing against being twisted or caught. When the lid hinge part is interposed between two hinge parts projecting from the body and the hinge pin is inserted into a lid hinge hole and a body hinge hole, the lid can turn about the hinge axis and move by an amount of offset groove. The hinge pin has a diameter capable of ensuring the strength for holding the lid through open/close operation of the lid, and can be produced inexpensively using plastic. When the lid is secured, the lid hinge part enters the offset groove to prevent coming-off of the hinge pin.
KAMIMURA OSAMU
KIMURA YASUSHI
| JPH11330725A | 1999-11-30 | |||
| JP2000223854A | 2000-08-11 |
| US3962750A | 1976-06-15 |
Manabu Inoue