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. 13, 2001
Filed:
Mar. 17, 1999
Joachim Biller, Lorch, DE;
Wolfgang Holbein, Alfdorf, DE;
TRW Occupant Restraint Systems GmbH & Co. KG, Alfdorf, DE;
Abstract
A belt retractor for a vehicular seat belt system comprises a belt reel taking up a seat belt, a belt tensioning mechanism capable of biasing the belt reel in a winding direction of the seat-belt, and a sensor capable of triggering the belt tensioning mechanism and provided with a safety device translatable by installation of the belt retractor in a vehicle from a secured condition in which the sensor is blocked, into a released condition in which the sensor is ready to trigger. The safety device includes a sensor blocking element which is movable between a blocking position in which the sensor is blocked, and a release position in which the sensor is ready to trigger, and includes a transport locking element and a sensing element. The sensing element senses a diameter of a coil of the seat belt on the belt reel and allows a movement of the sensor blocking element into the release position only when the diameter is below a predetermined value. The transport locking element is movable between a locked position and a release position. A spring is provided which biases the transport locking element into the release position, and a spring is provided which biases the sensor blocking element into the release position. The transport locking element comprises a retaining section which in the locked position engages an arresting section of the sensor blocking element and maintains it in the blocking position.