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:
May. 14, 1991
Filed:
Aug. 22, 1989
Yasuho Kitazawa, Niwa, JP;
Abstract
A seat belt system has a plurality of seat belt units with buckle apparatuses each having a tongue plate and a buckle plate for receiving and engaging the tongue plate. The seat belt system includes a first tongue plate having a first insert portion, a first buckle body having a first ejector movable by the insertion of the first insert portion and a first lock plate operative in response to the movement of the first ejector and capable of locking the first insert portion, a second tongue plate having a second insert portion, and a second buckle body having a second ejector movable by the insertion of the second insert portion and a second lock plate operative in response to the movement of the second ejector and capable of locking the second insert portion. The first buckle body has a first insertion path with a restricted portion of a width smaller than that of the second insert portion. The lengths of the first and second insert portions in the direction of insertion and the lengths of the first and second ejectors in the direction of movement of the ejectors are determined to meet the conditions of: direction of length of first insert portion plus movable direction length of first ejector=direction of length of second insert portion plus movable direction length of second ejector; direction of length of second insertion portion>direction of length of first insert portion; and movable direction length of first ejector>movable direction length of second ejector. With this arrangement, erroneous insertion of the second tongue plate into the first buckle body is prevented, while erroneous insertion of the first tongue plate into the second buckle body cannot activate the lock plate in the second buckle body.