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US 4,232,841 AGranted
Magnetic recording tape cassette
AssigneeHitachi Maxell, Ltd.
InventorNoritsugu Hashimoto
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a magnetic recording tape cassette having a bottom case and a top case, both of the cases being assembled and fastened together by means of screws threadingly engaged in holes provided in each of the bosses disposed on the front corners of the bottom case. The respective bosses on the bottom case are provided with at least one rib extending therefrom with a predetermined width and length, thereby reinforcing the bosses.
Claims6
A magnetic recording tape cassette comprising top and bottom cases, each of the cases having a front wall with a plurality of openings, a rear wall and side walls;
- a plurality of bosses formed adjacent to the respective corners of the cases, said cases being assembled together by means of screw passing through holes disposed in the respective bosses, said assembled cases defining a chamber therebetween for receoving a magnetic recording tape,
- each of said bosses situated adjacent to the front wall of the bottom case being composed of a base part having an arcuate wall extending between the inside faces of the front wall and one of the side walls and a circular connecting column projected from the top face of the base part so as to be engaged within the hole defined in the corresponding boss situated in the top case, a part of the peripheral face of the connecting column being formed so as to be aligned with the arcuate wall, and
- at least one rib with a predetermined thickness formed integral with each of the bosses situated adjacent to the front wall of the bottom case so as to project radially from the corresponding arcuate wall.
Dependencies are inferred from the claim text.