Integrally Molded Hinge Cap

Abstract

A hinge cap ( 10 ) fitted to a slant opening wall ( 26 ), which is provided around the opening of a hinge cap body ( 12 ), by means of two adjacently standing slant plugs ( 30, 32 ) of a lid ( 12 ). Because the slant plugs ( 30, 32 ) of the lid ( 12 ) are fitted by a large contact area to the slant opening wall ( 26 ) of the hinge cap body ( 12 ), the slant plugs can be applied to the hinge cap ( 10 ) having a relatively large area. Also, with the lid extended, the wall height of the slant outer plug ( 32 ) decreases as it approaches the rotation axis of the lid ( 12 ) and the wall height of the slant inner plug ( 30 ) decreases as it is away from the rotating shaft of the lid ( 12 ), so that the lid ( 12 ) can be smoothly rotated and opened in pressing and opening operation.

1 . An integrally molded hinge cap capable of being opened in a single pushing motion, which has a cap body and a lid rotatably connected to the cap body via a hinge portion, the integrally molded hinge cap comprising:
 a pushing and opening part having one end connected to the cap body via the hinge portion and the other end being opposite to the one end and connected to the cap body, wherein the pushing and opening part moves to a gap for operation interposed between the pushing and opening part and the cap body by pushing the pushing and opening part, whereby the lid is turned with the hinge portion being the axis of rotation on receipt of reaction from a correcting part which is provided in parallel with the pushing and opening part between the lid and the cap body;   a slant opening wall provided around an opening of the cap body, the slant opening wall being configured so that the inside wall thereof has an inclination having a predetermined angle with respect to a plane that is tangential to a vertex of the slant opening wall; and   a ring-shaped slant groove provided in a floor surface of the lid contactingly fitting to the slant opening wall, the ring-shaped slant groove being configured so that the wall surface thereof has an inclination having the same angle as the predetermined angle with respect to the floor surface, wherein the outside edge height of the ring-shaped slant groove from the lid floor surface decreases as it approaches the axis of rotation, and the inside edge height of the ring-shaped slant groove from the lid floor surface decreases as it goes away from the axis of rotation.   
   
   
       2 . The integrally molded hinge cap according to  claim 1 , wherein the slant groove is formed by two adjacently standing slant plugs of a slant inner plug and a slant outer plug both rising from the lid floor surface. 
   
   
       3 . The integrally molded hinge cap according to  claim 2 , wherein the wall height of the slant outer plug from the lid floor surface decreases as it approaches the axis of rotation, and the wall height of the slant inner plug from the lid floor surface decreases as it goes away from the axis of rotation. 
   
   
       4 . The integrally molded hinge cap of  claim 1 , wherein the hinge cap further comprises a container connected to the cap body, the container being molded integrally with the hinge cap at the same time. 
   
   
       5 . The integrally molded hinge cap of  claim 1  wherein the predetermined angle is approximately 45 degrees. 
   
   
       6 . The integrally molded hinge cap of  claim 1  wherein the lid is locked with the cap body when the lid is closed. 
   
   
       7 . The integrally molded hinge cap of  claim 1  wherein two correcting parts are located at both sides of the pushing and opening part with a gap.