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:
Jun. 15, 2010
Filed:
Nov. 30, 2004
Martin Schmidt, Elmshorn, DE;
Stefan Bösch, Hamburg, DE;
Thomas Schneider, Husum, DE;
Stefan Suhr, Elmshorn, DE;
Erne Frey, Elmshorn, DE;
Martin Schmidt, Elmshorn, DE;
Stefan Bösch, Hamburg, DE;
Thomas Schneider, Husum, DE;
Stefan Suhr, Elmshorn, DE;
Erne Frey, Elmshorn, DE;
Autoliv Development AB, Vargarda, SE;
Abstract
The invention relates to a seat belt retractor including a pretensioner especially for use in motor vehicles. The seat belt retractor includes a spool belt which supports belt webbing of the seat belt and rotates in the take-up direction of the safety belt when the pretensioning drive coupled to the belt spool is activated. The belt spool is associated with a drivewheel with recesses on the periphery thereof for accepting mass bodies acting as drive means for pretensioning the seat belt. The mass bodies are stored in a tube, which tangentially flows into the drivewheel, and the mass bodies are accelerated in the tube by means of a gas generator arranged at one end of the tube.