Pretensioner, seatbelt retractor including the pretensioner, and seatbelt apparatus including the seatbelt retractor
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United States of America Patent
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Feb 12, 2013
Issued Date -
N/A
app pub date -
Dec 12, 2011
filing date -
Dec 13, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pipe includes a cutout portion through which levers of a ring gear enter the pipe. An inner peripheral surface of the pipe opposing the cutout portion includes a curved inner peripheral surface in a curved portion of the pipe, a linear inner peripheral surface in a linear portion of the pipe, and a transition portion from the curved inner peripheral surface to the linear inner peripheral surface. The transition portion is located closer to a position where balls start to press the levers of the ring gear, than an intersection where an imaginary straight line α extending from a cutout end portion of the cutout portion intersects an imaginary extension line of the inner peripheral surface of the linear portion of the pipe at a right angle.
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Family
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