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:
Apr. 30, 2024
Filed:
Aug. 26, 2019
Autoliv Development Ab, Vargarda, SE;
Christian Fischer, Hamburg, DE;
AUTOLIV DEVELOPMENT AB, Vargarda, SE;
Abstract
A pyrotechnic tightening deviceof a safety belt unit having a force limiting unit, comprising—a gas generator, and—a piston, which is guided in a pipe and which closes a pressure chamber inside the pipe, wherein—a pressure can be applied to the pressure chamber by the gas generator, and—the piston can be driven by the pressure present in the pressure chamber to perform a tightening movement which can be transmitted by means of a force transmitting unit to the safety belt, wherein—the piston is formed in two parts consisting of a main body and a contact part arranged on the side of the main body facing the force transmitting unit, wherein—the contact part has a greater strength than the main body, wherein—the main body surrounds the contact part form fittingly at the end face facing the force transmitting device.