Roll-up device for safety belts

US4508289A · kind A · utility

Assignee

• Autoflug GmbH · DE

Inventors

• Klaus-Peter Singer · Hamburg, DE
• Klaus Butenop · Herzhorn, DE

Key dates

• Filing date: Dec 31, 1981
• Grant date: Apr 2, 1985
• Expiry date: Dec 31, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R22/36
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A roll-up device, particularly for safety belts used in vehicles. The device provides a so-called automatic belt blocker with belt-sensitive and/or vehicle-sensitive blocking of the belt winding spindle, which is provided with a projection which cooperates with a locking member, which in turn can be locked in place via detents which engage with notches associated with a housing. There is the problem that, in the event of high belt forces, the locking member will slip away from the projection, and thus from the notches of the housing, thereby freeing the blockage. The aim of the invention is therefore to prevent the locking member from breaking out of its predetermined position in this way. To solve this problem, at least one overlapping arrangement is provided between the projection of the belt winding spindle, and the radially deflectable locking member, to ensure that the locking member does not move out of its position in the axial direction of the belt winding spindle during blocking. The overlapping arrangement preferably includes an opening in the projection, and protrusions on the locking member, which protrusions engage in the opening. The entire locking member may also pas…