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A winding assembly for a vehicle safety belt system is provided with a belt rolling device and a high speed turning device adapted upon actuation of a propellant charge to wind the safety belt at high speeds as a result of the generation of pyrotechnical gases. The high speed turning device and the

A winding assembly for a vehicle safety belt system is provided with a belt rolling device and a high speed turning device adapted upon actuation of a propellant charge to wind the safety belt at high speeds as a result of the generation of pyrotechnical gases. The high speed turning device and the belt rolling device are interconnected when a given rate of vehicle deceleration is achieved and the high speed turning device is constructed with a rotatably mounted shaft, a pair of annular chambers extending about the shaft, a pair of vanes affixed to the shaft each extending into one of the annular chambers, a first blade fixed within one of the annular chambers and arranged to be engaged by one of the vanes and a second blade extending into the other of the annular chambers and arranged to be engaged by the other vane with the second blade being mounted in driving relationship through the interconnecting means to impart driving rotation of the shaft to the belt rolling device when the high speed turning device is driven by the pyrotechnical gases. The fixed blade is adapted to engage the first vane in order to stop rotation of the vanes and winding of the safety belt.

대표청구항 ▼

A winding assembly for a vehicle safety belt system comprising a belt rolling device having a safety belt arranged in winding engagement therewith, a high speed turning device adapted to be driven by pyrotechnical gases, means for generating said pyrotechnical gases to drive said turning device when

A winding assembly for a vehicle safety belt system comprising a belt rolling device having a safety belt arranged in winding engagement therewith, a high speed turning device adapted to be driven by pyrotechnical gases, means for generating said pyrotechnical gases to drive said turning device when said vehicle is decelerated at a given rate, and interconnecting means for connecting said high speed turning device with said belt rolling device to effect winding therein of said safety belt when said pyrotechnical gases are generated, said high speed turning device comprising: a rotatably mounted shaft; means defining a pair of annular chambers about such shaft; a pair of vanes affixed to said shaft, said vanes extending radially from said shaft, one into one of said annular chambers and the other into the other of said annular chambers; a first fixed blade extending into one of said annular chambers and arranged to engage one of said vanes to stop rotation thereof; a second blade extending into the other of said annular chambers and arranged to be engaged by the other of said vanes, said second blade being mounted in operative relationship with said interconnecting means to impart driving rotation of said shaft therethrough; and means for introducing said generated pyrotechnical gases into said annular chambers to effect rotation of said shaft; said blades and vanes being arranged to permit rotation of said shaft by the propellant force of said pyrotechnical gases against said vanes and thereby to effect winding of said safety belt until said one vane engages said first fixed blade.