| 摘要 |
A hinge apparatus is provided to improve working efficiency and security by keeping a door open with an angle adjusting groove, an angle adjusting hole and a position fixing unit, and to cut down manufacturing cost by fixing the door without additional splints. A hinge apparatus(10) includes a first plate(20) having plural first shaft housings(22), a second plate(40) having plural second shaft housings(42) arranged in a line with the first shaft housings of the first plate, and a shaft(50) inserted to the first shaft housing and the second shaft housing. Plural angle adjusting holes(24) are formed in a contact part of the first shaft housing, and plural angle adjusting grooves(44) are formed in the second shaft hosing and arranged circumferentially to control the rotational angle. A position fixing unit is arranged in the angle adjusting groove and the angle adjusting hole. A recessed part is formed in the contact part of the first shaft housing to insert an upper fixing tap with a shaft pipe and a lower fixing tap with a spiral groove. |
