Abstract: A vehicle airbag device includes: an inflator configured to generate gas when a first squib and a second squib are fired, respectively; an airbag including a main bag portion configured to inflate and deploy between an occupant seated in a passenger seat and an instrument panel and between the occupant and a windshield when the gas generated by the inflator is supplied into the airbag, and a center bag portion configured to project between the passenger seat and a driver seat from the main bag portion; and a controlling portion configured to control the inflator such that, when a head-on collision occurs, the second squib is fired after the first squib is fired, and when an oblique collision occurs, the second squib is fired after the first squib is fired and at a timing earlier than that when the head-on collision occurs.

Abstract: An airbag device for a passenger seat is disclosed. The airbag includes a main section whose rear plane forms a front-collision arresting plane, and a sub section which is disposed on a side of the main section and includes a protruding region protruding farther rearward than the main section. The side plane of the protruding region forms an oblique-collision arresting plane. Between the front-collision- and oblique-collision arresting planes is an arresting recess denting forward. The airbag further internally includes a front-rear tether jointed to the front-collision arresting plane, and a recess-pulling tether jointed to the bottom of the arresting recess. The front-rear tether and recess-pulling tethers share a mounting base by which the tethers are mounted on an airbag case, and bifurcate from the mounting base. The front-rear tether extends from a rear edge of the mounting base, and the recess-pulling tether extends from an edge of the mounting base adjoining the front-rear tether.

Abstract: An airbag includes a bag body, an exhaust portion which has an exhaust hole, and a connecting member which is connected to the exhaust portion by the root portion inside the bag body. The bag body includes a main inflatable portion that includes a first and a second side walls which are opposed in a left and right direction at airbag deployment, and a protruding inflatable portion that protrudes partially rearward from a first end region in the left and right direction of an upper region of a rear portion of the main inflatable portion as deployed. The exhaust portion is formed in the first side wall of the main inflatable portion on a side the protruding inflatable portion is disposed, and is positioned farther downward than an apex of the protruding inflatable portion, as viewed from a side of the airbag as deployed.

Abstract: An airbag is configured by six base materials of two side wall configuration panels, a projecting portion configuration panel, a front panel, and two rear panels. Each of the side wall configuration panels configure a left wall portion or a right wall portion facing each other on a side in a rightward-leftward direction in a main body inflation portion, and a projecting portion configuration portion configuring a projecting inflation portion is located in one of the side wall configuration panels. The front panel configures a region from an upper wall portion to a lower wall portion, which face each other on a side in an upward-downward direction in the main body inflation portion. Each of the rear panels configures a rear surface in the main body inflation portion when the main body inflation portion is completely inflated. The projecting portion configuration panel has an external shape substantially coincident with that of the projecting portion configuration portion.

Abstract: An airbag device includes an airbag. A passenger protection portion of the airbag has a frontal collision restraint surface, an oblique collision restraint surface, and a restraint recess portion. The airbag has a recess portion tether that couples a tip side of a recess of the restraint recess portion and a front end side of the airbag to each other, and at least one longitudinal tether that couples the front end side of the airbag and a recess portion-side region that is located on the restraint recess portion side with respect to a center of the frontal collision restraint surface in a lateral direction to each other, inside the airbag. The frontal collision restraint surface has at least two protruding surfaces that are configured to protrude backward, due to the longitudinal tether. The at least two protruding surfaces are arranged in alignment in the lateral direction.

Abstract: An airbag includes a main inflatable section which includes a front-collision arresting face at the rear plane as deployed, a protruding inflatable section which includes an oblique-collision arresting face, and an arresting recess formed between the front-collision arresting face and oblique-collision arresting face. An outer tether is disposed on the outside of the airbag for preventing the protruding inflatable section from moving away from the main inflatable section at airbag deployment. The outer tether includes a side edge disposed towards the protruding inflatable section and a front edge disposed towards the main inflatable section. The side edge is jointed to an upper edge of the oblique-collision arresting face by a side joint which is formed over a generally entire area in a front and rear direction of the protruding inflatable section. The front edge is jointed to an upper edge of the front-collision arresting face by a front joint.

Abstract: A vehicle front passenger seat airbag device includes a plurality of inflators, an airbag, and a controller. The airbag includes a front passenger seat airbag, and a center airbag that includes a vehicle-rear-side end that projects out further toward a vehicle rear side when inflated and deployed than a rear end of the front passenger seat airbag when inflated and deployed. The controller controls timings for igniting each squib included in the plurality of inflators such that a peak internal pressure of the airbag inflated and deployed when an oblique collision or small overlap collision has occurred is delayed, compared to a peak internal pressure of the airbag inflated and deployed when a head-on collision has occurred.

Abstract: An airbag includes on the rear plane a passenger protection portion for protecting a front seat passenger. The passenger protection portion includes a front-collision arresting plane for protecting a head of the passenger as he moves forward in the event of a frontal collision of the vehicle and an oblique-collision arresting plane that is disposed at least either on the left or on the right of the front-collision arresting plane in such a manner as to protrude rearward out of the front-collision arresting plane for protecting the head of the passenger as he moves diagonally forward in the event of an oblique or offset collision of the vehicle. The passenger protection portion further includes an arresting recess that is disposed between the front-collision arresting plane and oblique-collision arresting plane in such a manner as to be sunken forward for receiving and arresting the head of the passenger.

Abstract: An airbag includes, in a rear portion thereof, a passenger protection region for protecting a passenger. The passenger protection region includes a front-collision arresting plane, an oblique-collision arresting plane that is disposed on a left side and/or right side of the front-collision arresting plane, and an arresting recess that is disposed between the front-collision arresting plane and the oblique-collision arresting plane. Further, the airbag internally includes a tether that joints a front end portion of the airbag and the bottom of the arresting recess, and an auxiliary tether that joints the front end portion of the airbag and a side edge region of the front-collision arresting plane apart from the arresting recess. The tether and the auxiliary tether are designed to be deployed generally symmetrically with respect to a line that runs in a front and rear direction through a mounting center of the airbag to a case of the airbag.

Abstract: An airbag includes a main inflatable section which includes a front-collision arresting face at the rear plane as deployed, a protruding inflatable section which includes an oblique-collision arresting face, and an arresting recess formed between the front-collision arresting face and oblique-collision arresting face. The airbag internally includes a recess-pulling tether which joints the leading end of the arresting recess and a front end portion of the airbag as deployed, and a regulating tether which extends from the leading end of the arresting recess towards a far-side wall of the protruding inflatable section which is opposed to the oblique-collision arresting face. A joint position of the regulating tether to the far-side wall is such a position that would produce a pulling force which pulls the protruding inflatable section towards the rear plane of the main inflatable section when the leading end of the arresting recess moves forward at catching a passenger.

Abstract: An airbag body includes, in a protection region disposed in the rear portion, a front-collision arresting plane, an oblique-collision arresting plane, and an arresting recess that is recessed forward between the front-collision arresting plane and oblique-collision arresting plane. The airbag body further internally includes a tether that pulls a flat surfaced portion of the passenger protection region and forms the arresting recess out of the flat surfaced portion at airbag deployment. The tether includes a front-rear connecting region that connects a leading end of the arresting recess to the center of a front end portion of the airbag body, and a sideways connecting region that connects the leading end of the arresting recess to a side wall of the airbag body near the oblique-collision arresting plane. The joint of the sideways connecting region to the side wall is disposed farther forward than the leading end of the arresting recess.

Abstract: An airbag device for a front passenger seat includes an airbag, two inflators each for feeding the airbag with an inflation gas, a case which holds the airbag and inflators, and a retainer which mounts the airbag and inflators on the case. One of the two inflators is a potentially-influential inflator whose inflation gas may influence the other inflator. The retainer includes a holding plate section which is disposed on an inner surface of the airbag, two insert openings for receiving main bodies of the two inflators, and a shielding wall which rises out of a position of the holding plate section between the two insert openings and extends to a vicinity of a height of the top end plane of the main body of the potentially-influential inflator. The shielding wall shields the other inflator from an inflation gas emitted by the potentially-influential inflator.

Abstract: An airbag is disclosed, including a main bag section deployable in front of a passenger seat, a center bag section which is deployable in such a manner as to protrude towards an inboard side in a vehicle width direction out of the main bag section to an area beneath the rearview mirror. The center bag section includes, on the upper portion as deployed, a region that faces the rearview mirror in an up and down direction. The center bag section internally includes a regulating tether that is disposed generally along an up and down direction and connects the region of the upper portion of the center bag section facing the rearview mirror at airbag deployment and a region of a lower portion of the center bag section deployed beneath the region facing the rearview mirror in order to prevent contact between the center bag section and the rearview mirror.

Abstract: A front passenger seat airbag device includes a module case; a front passenger seat airbag configured such that, in a folded state, a height of a first airbag section positioned at a vehicle outer side is lower than a height of a second airbag section positioned at a vehicle inner side, and widths of the first airbag section and the second airbag section are substantially the same; an inflator disposed at a bottom side of the module case; and a raising member disposed at a bottom portion of the module case, and that raises a height of a first support face supporting the first airbag section to be higher than a height of a second support face supporting the second airbag section, such that a height of an upper face of the first airbag section is substantially aligned with a height of an upper face of the second airbag section.

Abstract: An airbag has an occupant protection portion at a rear face when inflation is completed. The occupant protection portion includes a frontal collision restriction face and an oblique collision restriction face which protrudes rearward from the frontal collision restriction face on the left or right sides of the frontal collision restriction face. A restriction recessed portion for allowing a head of an occupant to enter and to be restricted is formed between the frontal collision restriction face and the oblique collision restriction face. A slip portion having excellent sliding properties compared to those of other regions of the frontal collision restriction face is disposed in a region from a surface side of the frontal collision restriction face to a surface side of an inner wall portion in the restriction recessed portion.

Abstract: There is provided a passenger seat air bag having a portion which is unfolded to a side toward a center side of a vehicle in which a pressure difference in the portion is suppressed. A passenger seat air bag includes a front unfolding portion which is unfolded in front of the passenger seat, and a side unfolding portion which is in communication with the front unfolding portion and which is unfolded to side, of the passenger seat, nearer to a center of the vehicle. A horizontal tether is provided in the side unfolding portion in an arrangement which is approximately horizontal during unfolding. When unfolding gas is injected from the front to the air bag, because the horizontal tether does not block flow of the unfolding gas, pressure us the side unfolding portion is made uniform.

Abstract: A multistage transmission device includes a plurality of driving gears provided in a countershaft, a plurality of driven gears meshing with the driving gears, respectively, dog rings that switch mechanical connection or disconnection between the drive shaft and each of the driven gears, and one-way clutches arranged between the countershaft and the driving gears. The one-way clutches transmit rotation of the countershaft to the driving gears when the rotation of the countershaft is faster than the rotation of the driving gears.

Abstract: An airbag is configured using a rear surface side when inflation is completed as an occupant protection section. The occupant protection section includes a frontal collision restriction surface, oblique collision restriction surfaces formed both on the left and right sides of the frontal collision restriction surface, and restriction recessed portions installed between the frontal collision restriction surface and each of the oblique collision restriction surfaces. The airbag installs a recessed portion tether that links a tip end side of a recess of each of the restriction recessed portions and a front end side of the airbag to each other to the inside thereof, and when inflation is completed, at the time of substantially dividing the region into two in the left-right direction around the vicinity of the attachment center to the storage part, a remote side region on a side away from a driver seat and a driver seat side region on the driver seat side are provided.

Abstract: An airbag includes, in a rear portion thereof, a passenger protection region for protecting a passenger. The passenger protection region includes a front-collision arresting plane, an oblique-collision arresting plane that is disposed on a left side and/or right side of the front-collision arresting plane, and an arresting recess that is disposed between the front-collision arresting plane and the oblique-collision arresting plane. Further, the airbag internally includes a tether that joints a front end portion of the airbag and the bottom of the arresting recess, and an auxiliary tether that joints the front end portion of the airbag and a side edge region of the front-collision arresting plane apart from the arresting recess. The tether and the auxiliary tether are designed to be deployed generally symmetrically with respect to a line that runs in a front and rear direction through a mounting center of the airbag to a case of the airbag.

Abstract: A crank chamber internal pressure reduction mechanism for internal combustion engine includes a crankshaft, a rotating shaft (a balancer shaft), a suction mechanism (a primary drive gear), a first discharge passage (a discharge passage, a joining passage, and a discharge hose), and a second discharge passage (a discharge passage). The crankshaft is rotatably supported to a crankcase. To the rotating shaft, a rotation force is transmitted from the crankshaft. The suction mechanism is disposed at the rotating shaft. The suction mechanism rotates integrally with the rotating shaft. To the first discharge passage, the emission is discharged from the crank chamber. The second discharge passage is communicated with the first discharge passage. The second discharge passage is disposed inside the rotating shaft. The suction mechanism includes a third discharge passage (a hole). The third discharge passage is communicated with the second discharge passage.