Nihon Plast Co., Ltd.

Masahito Ishizuka

Kazuhiro Kaneko

Kazuyoshi Nishijima

Toshiyuki Sugiyama

Tetsuji Endo

Mikio Ochiai

Yoshinori Goto

Masaki Ueno

An air bag is unfolded on a planar surface and is inflated with air. The air bag is loosely sandwiched between the upper and lower blades that are arranged in a radial configuration. Movable blocks progress toward the center to fold the upper and lower panels of the air bag against the central part of the air bag. The resulting central folded part of the air bag has a wave-like configuration, and the upper and lower panels are separated from each other. The ear-like portions of the air bag are wound around the central folded part of the air bag that is folded in a wave-like configuration. Then, the central part of the air bag is pressed downward to complete the folding process. Gas can be supplied smoothly from the inlet port to the periphery when the air bag is reinflated. The method for folding the air bag is simple, and the air bag can be inflated quickly.

Method and device for folding up air bag, and air bag

Method for folding up an air bag

An air bag body ( ) is expanded by charging an air therein after being expanded in a flat surface shape. Next, by gently gripping the air bag body ( ) by upper and lower blades ( ) radially arranged in a radial direction of the air bag body ( ), a height in a radial direction of the air bag body ( ) is linearly restricted along the upper and lower blades ( ). Next, a plurality of movable blocks ( ) are forward moved toward a center of the air bag body ( ), and upper and lower panels ( ) of the air bag body ( ) are accumulated. At this time, the upper and lower panels ( ) of the air bag body ( ) are folded in a state of being apart from each other so as to form a wave shape. Next, the air bag body ( ) is rotated, a portion left in a tab shape is wound around a periphery, and a center protruding portion of the air bag body ( ) is pressed from an upper side, whereby a front surface deploying portion ( ) is formed. When supplying gas to the folded air bag body ( ), the front surface deploying portion ( ) rapidly deploys so as to break a cover ( ) and the gas is smoothly supplied to a peripheral edge portion ( ), whereby it is possible to smoothly and rapidly deploy the air bag body ( ).

Apparatus for folding air bag body

An air bag body ( ) is expanded by charging air therein after being expanded in a flat surface shape. Next, by gently gripping the air bag body ( ) by upper and lower blades ( ) radially arranged in a radial direction of the air bag body ( ), height in a radial direction of the air bag body ( ) is linearly restricted along the upper and lower blades ( ). Next, a plurality of movable blocks ( ) are forward moved toward a center of the air bag body ( ), and upper and lower panels ( ) of the air bag body ( ) are accumulated. At this time, the upper and lower panels ( ) of the air bag body ( ) are folded in a state of being apart from each other so as to form a wave shape. Next, the air bag body ( ) is rotated, a portion left in a tab shape is wound around a periphery, and a center protruding portion of the air bag body ( ) is pressed from an upper side, whereby a front surface deploying portion ( ) is formed. When supplying gas to the folded air bag body ( ), the front surface deploying portion ( ) rapidly deploys so as to break a cover ( ) and the gas is smoothly supplied to a peripheral edge portion ( ), whereby it is possible to smoothly and rapidly deploy the air bag body ( ).

Air bag and air bag apparatus

Method of folding air bag body

Growing community of inventors

Fuji, Japan

Masahito Ishizuka