Airbag device and airbag for saddle-ride type vehicle

An airbag for an airbag device for a saddle-ride type vehicle, the airbag comprising:

• a left edge, a right edge, a front edge, and a rear edge,
• wherein both the left and right edges of the airbag are folded in one of an accordion-folded manner and a rolling manner leaving a predetermined dimension in the vehicle width direction between left and right folded parts so that the size of the airbag in a vehicle width direction when the airbag is installed in a vehicle is reduced, and
• wherein both the front and rear edges of the airbag are folded in one of an accordion-folded manner and a rolling manner so that the size of the airbag in a front-rear direction of a vehicle body is reduced, and
• a portion, where the predetermined dimension is left after being folded, is formed to be bendable as a flexible part.

A method for providing an airbag device for a saddle-ride type vehicle, the method comprises:

• providing a housing case comprising a concave shape surface;
• arranging the housing case behind a steering stem of the saddle-ride type vehicle so as to cover a rear of the steering stem with the concave shape surface;
• and
• housing an airbag in the housing case,
• wherein the housed airbag corresponds to a shape of an inner peripheral surface of the housing case having the concave shape surface.

A method of folding an airbag for an airbag device in a vehicle, comprising:

• folding a left edge of an airbag and a right edge of the airbag in one of an accordion-folded manner and a rolling manner, while leaving a predetermined dimension in the vehicle width direction between left and right folded parts so that the size of the airbag in a vehicle width direction is reduced when the airbag is installed in the vehicle;
• folding a front edge of the airbag and a rear edge of the airbag in one of an accordion-folded manner and a rolling manner so that the size of the airbag in a front-rear direction of a vehicle body is reduced;
• and
• forming a portion of the airbag, where the predetermined dimension is left after being folded, to be bendable as a flexible part.

An airbag device for a vehicle, the airbag device comprising:

• airbag means for protecting a rider of the vehicle;
• and
• housing means for housing said airbag means, said housing means including a concave shape surface facing a steering stem and is configured behind the steering stem so as to cover a rear of the steering stem with the concave shape surface,
• wherein said airbag means corresponds to a shape of an inner peripheral surface of the housing means having the concave shape surface.