The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 02, 1999
Filed:
Nov. 10, 1997
Keigo Atsumi, Yokkaichi, JP;
Masahiko Aoyama, Yokkaichi, JP;
Hitoshi Okumura, Yokkaichi, JP;
Mitsugu Furutani, Yokkaichi, JP;
Abstract
To prevent the disengagement of housings by a simple construction, four projections 14 stand on the upper surface of a lower housing 1, and round holes 14 into which the corresponding projections 14 are fitted are formed in the lower surface of the upper housing 2. The end face of each projection 14 is bevelled to form a tapered guide surface 15. When the upper housing 2 is placed on the lower housing 1, the housings 1, 2 are locked by the lock portions 5, and the projections 14 and the round holes 16 provided on the surfaces of the housings 1, 2, which come together are engaged in four positions. In this way, the relative rotation of the housings 1, 2 is prevented and such a force as to elastically deform the lock portions 5 does not act. The projections 14 and the round holes 16 are engaged with each other by being guided by the guide surfaces 15, thereby easily positioning the housings 1, 2. Thus, the housings 1, 2 can be smoothly placed one over the other.