Triggerable holding apparatus
View Patent ↗The invention relates to a triggerable holding device ( 10 ) for a tensioning means ( 12 ) of an airbag, comprising a holder ( 14 ), a locking member ( 16 ) that is movably supported in the holder ( 14 ) and that is shiftable between a locking position in which it keeps the tensioning means ( 12 ) locked and a release position in which the tensioning means ( 12 ) is released, a pyrotechnical device ( 22 ) which is coupled to the locking member ( 16 ) so that, when the pyrotechnical device ( 22 ) is activated, it is shifted from the locking position to the release position, and a restraining device ( 38 ) which is tightly connected to the locking member ( 16 ) and which, in the release position of the locking member ( 16 ), interacts with a restraining geometry ( 40 ) within the holder ( 14 ) to hold the locking member ( 16 ) in its release position within the holder ( 14 ).
1 . A triggerable holding device for a tensioning means of an airbag, comprising
a holder,
a locking member that is movably supported in the holder and that is shiftable between a locking position in which it keeps the tensioning means blocked and a release position in which the tensioning means is released,
a pyrotechnical device that is coupled to the locking member so that, when the pyrotechnical device is activated, it is shifted from the locking position to the release position,
and a restraining device that is tightly connected to the locking member and that interacts, in the release position of the locking member, with a restraining geometry in the holder to hold the locking member in its release position in the holder, wherein the restraining device is formed on a base in which the locking member is held, the restraining device projecting laterally from the base.
2 . The holding device according to claim 1 wherein the base is a plastic member and the plastic forming the base is injection-molded around the locking member in an area of the pyrotechnical device, or the locking member is inserted in the base.
3 . The holding device according to claim 1 , wherein the restraining device is a tab that projects outwardly inclined on the base.
4 . The holding device according to claim 3 , wherein the tab is flexible.
5 . The holding device according to claim 1 , wherein the base is guided on an inner wall of the holder and the inner wall has a recess which extends in a direction of movement of the locking member and into which the restraining device protrudes at least a little.
6 . The holding device according to claim 1 wherein the base is guided to be rotationally fixed in the holder.
7 . The holding device according to claim 6 , wherein a projection is formed integrally with the base and the holder includes, on an inner wall, a groove or a slit in which the projection is guided.
8 . The holding device according to claim 1 , wherein the restraining geometry is a cutout which extends to an outer face of the holder, wherein the restraining device is received in the release position of the locking member in the cutout.
9 . The holding device according to claim 8 , wherein the cutout is axially connected to the recess.
10 . The holding device according to claim 8 , wherein the restraining device, in the release position of the locking member, extends through the cutout.
11 . The holding device according to claim 1 , wherein the holder includes a slit for receiving the tensioning means.