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:
Feb. 22, 1994
Filed:
Feb. 19, 1992
Isao Ikegaya, Shizuoka, JP;
Naotoshi Nishikawa, Shizuoka, JP;
Fuji Kiko Co., Ltd., , JP;
Abstract
A vehicle safety belt pre-tensioning system includes a slider to which a cable is attached. The slider is affixed to a safety belt buckle and to a cable for pulling the buckle forcibly downward to secure a seat occupant upon occurrence of an emergency condition. The cable is arranged parallel to a guide groove of a guide plate and is guide into a sensor mechanism via a roller. The other end of the cable is affixed to a piston. A portion of the cable is fixed in a tube which is arranged in the sensor mechanism. The sensor mechanism activates a trigger upon detecting an emergency condition. Between the sensor mechanism and the piston, a coil spring is held in a compressed state. Within the sensor mechanism, the tube is retained by a pawl which also contacts a link which is positioned proximate a pin, or trigger, associated with a sensor mass. When vehicle motion indicatives an emergency condition, the sensor mass moves so as to cause the pin to break the link. Thus, the pawl moves so as to release the tube. When the tube is released the piston is moved away from the sensor mechanism by the sudden expansion of the compressed coil spring. This pulls the cable, causing the slider and buckle to be pulled rapidly downward, tightening a safety belt attached to the buckle for securing the seat occupant. The assembly is attached to a side of an upper rail of a seat mounting.