Belt reel
First Claim
Patent Images
1. A belt reel for safety belts in motor vehicles comprising:
- a spindle for winding up a safety belt and which has a portion that is adapted to be latched to a fixed frame upon the triggering of an activation device, and hydraulically controlled force limiting element which is operatively interposed between the spindle and the frame;
wherein the spindle includes a bore containing hydraulic fluid, the bore being closed by a flange member which can be selectively latched to the fixed frame by a triggering of the activation device, and wherein the flange member is rotatable relative to the spindle;
wherein the hydraulic fluid is displaced into or out of the container by a displacement element when a force in excess of a predetermined value is applied to the spindle; and
wherein the flange member comprises a threaded shaft that extends through the bore.
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Accused Products
Abstract
A belt reel has a spindle having a main body portion and a relatively rotatable end member that can be latched to a fixed frame upon triggering of an activation device. The main body portion of the spindle is formed with a bore which is filled with hydraulic fluid. The spindle further includes a force-limiting element which cooperates with the hydraulic fluid in the bore to produce a resistance against which the spindle body must be rotated when the relatively rotatable end member is latched to the frame.
20 Citations
15 Claims
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1. A belt reel for safety belts in motor vehicles comprising:
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a spindle for winding up a safety belt and which has a portion that is adapted to be latched to a fixed frame upon the triggering of an activation device, and hydraulically controlled force limiting element which is operatively interposed between the spindle and the frame;
wherein the spindle includes a bore containing hydraulic fluid, the bore being closed by a flange member which can be selectively latched to the fixed frame by a triggering of the activation device, and wherein the flange member is rotatable relative to the spindle;
wherein the hydraulic fluid is displaced into or out of the container by a displacement element when a force in excess of a predetermined value is applied to the spindle; and
wherein the flange member comprises a threaded shaft that extends through the bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification