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. 25, 1982
Filed:
Sep. 08, 1980
Hideoki Matsuoka, Yokohama, JP;
Yoshimi Yamamoto, Shizuoka, JP;
Nissan Motor Co., Ltd., , JP;
Abstract
An emergency lock type retractor for a passive safety belt assembly of a vehicle includes a housing (1) mounted on the vehicle body, a reel (3) for the belt (4) rotatably supported by the housing and a ratchet wheel (7) secured to the reel. An inertia device (16) detects an emergent deceleration of the vehicle and causes a pawl (9) to engage with the ratchet wheel to lock the reel and prevent unwinding of the belt. The inertia device includes a first inertia member (19) perpendicularly suspended by the housing to assume a constant angle with respect to the vehicle body. The first inertia member supports a more sensitive second inertia member (22) which displaces relatively to the first inertia member as the vehicle is emergently decelerated. When the mounting angle of the housing varies with respect to the vehicle body, the first inertia member swings to stably maintain the second inertia member at a constant angular position with respect to the vehicle body.