Abstract: A completely folded body of an airbag, includes: an outer peripheral wall including a vehicle body side wall portion, and a receiving side wall portion. An outer peripheral edge side in a state where the receiving side wall portion is superimposed on the vehicle body side wall portion and is flatly deployed is subjected to radial folding and folded. An accommodation recess portion for accommodating an upper portion on a gas supply port side of an inflator is provided on a bottom surface. A radially-folded folded portion is disposed so as to surround a circumference of an intermediate portion from a base portion near the center of the ceiling surface of the accommodation recess portion in a linear supply path, for supplying the inflation gas from the inflator, to a tip portion disposed on an inner surface side near the center of the receiving side wall portion.

Abstract: An airbag device includes: an airbag which inflates from a state of a folded body by receiving an inflation gas; and a wrapping material wraps the folded body. The folded body has a three-dimensional shape including a bottom surface portion, a ceiling portion, and a side surface portion. The wrapping material includes: a cover member having flexibility and a sheet shape which includes a ceiling cover portion covering the ceiling portion of the folded body, a side surface cover portion covering the side surface portion, and a bottom surface cover portion which covers the bottom surface portion and has a locking hole to be locked to a fastener, and an elongation regulating member which is provided on at least a part of the cover member so as to suppress elongation of the cover member in opposition to an acting direction of the restoring force of the folded body.

Abstract: A completely folded body of an airbag, includes: an outer peripheral wall including a vehicle body side wall portion, and a receiving side wall portion. An outer peripheral edge side in a state where the receiving side wall portion is superimposed on the vehicle body side wall portion and is flatly deployed is subjected to radial folding and folded. An accommodation recess portion for accommodating an upper portion on a gas supply port side of an inflator is provided on a bottom surface. A radially-folded folded portion is disposed so as to surround a circumference of an intermediate portion from a base portion near the center of the ceiling surface of the accommodation recess portion in a linear supply path, for supplying the inflation gas from the inflator, to a tip portion disposed on an inner surface side near the center of the receiving side wall portion.

Abstract: A completely folded body of an airbag includes: a folded body and a retainer, which is assembled to the folded body, including: an annular bottom wall portion; a plurality of fixing units; and a reinforcing rib, wherein: the folded body of the airbag is configured in such a folded shape that the airbag is folded to be gathered to an upper side of the retainer; the folded body is arranged with a bottom wall cover portion and a bottom wall separated portion which extends from the bottom wall cover portion; and the bottom wall separated portion includes a stepped surface having a vertical surface bent upward from the bottom wall cover portion, and a horizontal surface which is disposed above the bottom wall cover portion from an upper end of the vertical surface and extends toward an outer circumferential edge of the bottom wall separated portion.

Abstract: An airbag device includes: an airbag which inflates from a state of a folded body by receiving an inflation gas; and a wrapping material wraps the folded body. The folded body has a three-dimensional shape including a bottom surface portion, a ceiling portion, and a side surface portion. The wrapping material includes: a cover member having flexibility and a sheet shape which includes a ceiling cover portion covering the ceiling portion of the folded body, a side surface cover portion covering the side surface portion, and a bottom surface cover portion which covers the bottom surface portion and has a locking hole to be locked to a fastener, and an elongation regulating member which is provided on at least a part of the cover member so as to suppress elongation of the cover member in opposition to an acting direction of the restoring force of the folded body.

Abstract: A completely folded body of an airbag includes: a folded body and a retainer, which is assembled to the folded body, including: an annular bottom wall portion; a plurality of fixing units; and a reinforcing rib, wherein: the folded body of the airbag is configured in such a folded shape that the airbag is folded to be gathered to an upper side of the retainer; the folded body is arranged with a bottom wall cover portion and a bottom wall separated portion which extends from the bottom wall cover portion; and the bottom wall separated portion includes a stepped surface having a vertical surface bent upward from the bottom wall cover portion, and a horizontal surface which is disposed above the bottom wall cover portion from an upper end of the vertical surface and extends toward an outer circumferential edge of the bottom wall separated portion.

Abstract: A method of manufacturing a folded body of an airbag, which is inflated by allowing an inflation gas, including: an inflow opening through which the inflation gas is allowed to flow; and an attachment portion of the circumferential edge of the inflow opening, the airbag being formed as a folded body having a folded shape of being gathered to an upper side of the attachment portion, the attachment portion being attached to an attachment seat of a storage portion, the method includes: folding the airbag, in the state of raising a temperature of the airbag, to form a pre-folded body; heating and compressing the pre-folded body, and cooling and compressing the pre-folded body, which is heated and compressed, to form the folded body.

Abstract: A completely folded body of an airbag includes: a folded body and a retainer, which is assembled to the folded body, including: an annular bottom wall portion; a plurality of fixing units; and a reinforcing rib, wherein: the folded body of the airbag is configured in such a folded shape that the airbag is folded to be gathered to an upper side of the retainer; the folded body is arranged with a bottom wall cover portion and a bottom wall separated portion which extends from the bottom wall cover portion; and the bottom wall separated portion includes a stepped surface having a vertical surface bent upward from the bottom wall cover portion, and a horizontal surface which is disposed above the bottom wall cover portion from an upper end of the vertical surface and extends toward an outer circumferential edge of the bottom wall separated portion,

Abstract: A melamine epoxy resin monomer including: a glycidyl group; and a structural unit having a melamine residue and being represented by the following Formula (I) is disclosed. In Formula (I), each of R1 to R4 independently represents a hydrogen atom, a group represented by R5OCH2—, or a group derived from a melamine derivative and represented by the following Formula (II). R5 represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a glycidyl group. In Formula (II), each of R21 to R25 independently represents a hydrogen atom, a group represented by R26OCH2—, or a group derived from a melamine derivative and represented by Formula (II). R26 represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a glycidyl group.

Abstract: An actuator AE1 includes a lock mechanism R1 configured to fill a gas G generated by operating a gas generator 35 at inside of a cylinder 22 and moving forward a piston 38 along with a support rod 40 for restricting a rearward movement of the support rod moved forward. The support rod 40 is arranged to be able to absorb a kinetic energy of a protection object person and capable of being plastically deformed when the protection object person is received by a receiving member after having been moved forward. A lock mechanism R1 is constituted by a diameter enlarging deformed portion 42 arranged at a piston and a locking stepped portion 24 capable of restricting the rearward movement of the piston.

Abstract: An actuator AE1 includes a lock mechanism R1 configured to fill a gas G generated by operating a gas generator 35 at inside of a cylinder 22 and moving forward a piston 38 along with a support rod 40 for restricting a rearward movement of the support rod moved forward. The support rod 40 is arranged to be able to absorb a kinetic energy of a protection object person and capable of being plastically deformed when the protection object person is received by a receiving member after having been moved forward. A lock mechanism R1 is constituted by a diameter enlarging deformed portion 42 arranged at a piston and a locking stepped portion 24 capable of restricting the rearward movement of the piston.

Abstract: Multi-electric discharges in the spark plugs of an electric ignition type engine to be inspected is sustained through a fixed angle of the engine cycle from the timing of spark ignition. For this period the electric discharge wave sustained in the spark plug is displayed. From the electric discharge wave displayed one can determine what are the change in pressure and the conditions of combustion gas in the combustion chamber of the engine.