Patent ID: 9108774
Filing Date: 2015-08-18
Classification: B29C,B29L,B65D

Abstract:
1. A cap for a container for maintaining a cap body at a set open angle so as to prevent the cap body from drooping the cap comprising: a fixing ring for preventing separation of the cap from a container body and preventing undesired movement; the cap body for opening and closing the container body, where a screw portion is formed on an inner circumferential surface of the cap body; a hinge portion for connecting the fixing ring and the cap body; and a plurality of bridges formed between the cap body and the fixing ring, which are cut separated if the cap is opened, wherein a cutting line for extending a connection length to the cap body is formed in the fixing ring around the lower portion of the hinge portion, wherein said hinge portion consists of a central folding type connector and two lateral pullers located on both sides of the central folding type connector, wherein said central folding type connector is molded in folded form comprising a concave groove, which is formed to the inside of the cap body in such a way that the concave groove is formed with a step difference between the cap body and the fixing ring, wherein said lateral pullers are formed in a general shape of an opposing pair of isosceles triangles and said lateral pullers apply pulling elastic forces such that they will maintain a set opening angle and thus prevent the stopper body from drooping, wherein said boundary line between said central folding type connector and said lateral pullers is cut open, and a reinforcement rib is located on the fixing ring directly below the central folding type connector, said rib protrudes out from said fixing ring and has a concave shaped outer edge, said outer edge corresponds to the cap body convex outer circumference such that when cap is opened the cap body can swing out until the reinforcement rib contacts the cap body and stops the cap body from opening further.