Seatbelt retractor of an automobile
AssigneeHyundai Motor Company
InventorByoung Tae Jeong
Life of this patent
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Abstract
The present invention relates to a seatbelt retractor of an automobile, which is provided with a frictional clutching means for decreasing the rotating speed of a drum shaft where a webbing and a spiral spring are fixed, whereby locking of a vehicle sensor is inhibited by reducing the shock caused by sudden expansion of the spiral spring.
Claims10
A seatbelt retractor, comprising a frictional clutching means equipped in a drum, which reduces rotating speed of a drum shaft where a webbing and a spiral spring are fixed in response to the expansion of said spiral spring during a retraction of the webbing.
A seatbelt retractor, comprising:
- a drum containing a rotatable drum shaft and a spiral spring acting between the drum and shaft, said shaft configured and dimensioned for winding a seatbelt webbing thereon;
- and
- a frictional clutch operatively connected to said spiral spring and acting on said drum shaft in response to an increase in diameter of the spiral spring.
Dependencies are inferred from the claim text.