Abstract: A vehicle seat that can suitably protect a seated occupant against an impact from a seat width direction is described, while enlargement of the seat in the seat width direction is restrained. A support member provided to the vehicle seat supports the seated occupant from a side of the seated occupant, and includes an inner plate attached to a seat width direction inner side of a side frame, an outer plate attached to a seat width direction outer side of the side frame, and a connection plate for connecting the inner plate and the outer plate on a seat front side. The outer plate is attached to the seat width direction outer side of the side frame at a position that does not overlap in the seat width direction with attachment positions of the inner plate and the side frame.

Abstract: A leak test condition design method includes obtaining an internal volume of a test piece and a remaining internal volume of a test piece capsule with the test piece loaded for a differential pressure based air leak test; determining a test air pressure to be applied into the test piece capsule when the differential pressure based air leak test is performed; determining bombing conditions of a helium leak test; obtaining a differential pressure value between a test piece and a master to be gained when the differential pressure based air leak test is performed and converting into an equivalent standard leak rate to derive a differential pressure conversion value; obtaining a helium leak rate of the test piece gained and converting into an equivalent standard leak rate to derive a helium leak rate conversion value; and displaying the derived differential pressure conversion value and helium leak rate conversion value.

Abstract: The present invention provides a method for leak testing by which occurrence of fine leakage from a work as a test object can be determined without being affected by a released tracer gas that is also released from a non-defective work. The method for leak testing includes a series of steps including a gas bombing step wherein a work W as a test object is soaked in a pressurized tracer gas, a work setting step wherein the work subjected to the gas bombing is set in a hermetically sealed container 10, a vacuum suctioning step wherein the hermetically sealed container 10 is vacuum suctioned by a suction device 20 and a measuring step wherein tracer gas measurement data are obtained by measuring a vacuum suctioned tracer gas with a detector 30. Tracer gas measurement data for a non-defective work are preliminarily obtained by performing the series of steps for the non-defective work having same specifications as the work W as the test object.