초록 ▼

An inflator (10) includes a housing (20). A first inflation fluid source (240) in the housing (20) is actuatable to effect flow of inflation fluid to inflate an inflatable device. A first actuatable initiator (130) in the housing (20), when energized, effects actuation of the first inflation fluid s

An inflator (10) includes a housing (20). A first inflation fluid source (240) in the housing (20) is actuatable to effect flow of inflation fluid to inflate an inflatable device. A first actuatable initiator (130) in the housing (20), when energized, effects actuation of the first inflation fluid source (240). A second inflation fluid source (250) in the housing (20) is actuatable to effect flow of inflation fluid to inflate the inflatable device. A second actuatable initiator (152) in the housing (20), when energized, effects actuation of the second inflation fluid source (250). The housing (20) has a fluid passage (90) for directing flow of inflation fluid out of the housing (20) to the inflatable device. The housing (20) deforms due to the pressure of inflation fluid in the housing upon actuation of one or both of the inflation fluid sources (240, 250). The flow area of the fluid passage (90) increases due to deformation of the housing (20) and varies in accordance with the pressure of inflation fluid in the housing.

대표청구항 ▼

An inflator (10) includes a housing (20). A first inflation fluid source (240) in the housing (20) is actuatable to effect flow of inflation fluid to inflate an inflatable device. A first actuatable initiator (130) in the housing (20), when energized, effects actuation of the first inflation fluid s

An inflator (10) includes a housing (20). A first inflation fluid source (240) in the housing (20) is actuatable to effect flow of inflation fluid to inflate an inflatable device. A first actuatable initiator (130) in the housing (20), when energized, effects actuation of the first inflation fluid source (240). A second inflation fluid source (250) in the housing (20) is actuatable to effect flow of inflation fluid to inflate the inflatable device. A second actuatable initiator (152) in the housing (20), when energized, effects actuation of the second inflation fluid source (250). The housing (20) has a fluid passage (90) for directing flow of inflation fluid out of the housing (20) to the inflatable device. The housing (20) deforms due to the pressure of inflation fluid in the housing upon actuation of one or both of the inflation fluid sources (240, 250). The flow area of the fluid passage (90) increases due to deformation of the housing (20) and varies in accordance with the pressure of inflation fluid in the housing. n said first and second sheet detecting means are provided on a common substrate. 5. An image forming apparatus according to claim 1, wherein said second sheet feeding means is integrally provided on said sheet feeding cassette. 6. An image forming apparatus according to claim 1, wherein said second sheet feeding means is detachably provided on said sheet feeding cassette. 7. An image forming apparatus according to claim 1, wherein said second sheet containing portion is provided on said main body of said apparatus. 8. An image forming apparatus according to claim 7, wherein said second sheet containing portion has a tray for supporting the sheet, and said tray is provided in said main body of said apparatus rockably between a position where said tray contains the sheet and a position where said tray does not contain the sheet. 9. An image forming apparatus according to claim 1, further comprising drive transmitting means for driving said first sheet feeding means and said second sheet feeding means by using a driving source provided in said main body of said apparatus. 10. An image forming apparatus according to claim 9, wherein said second sheet feeding means includes a pick-up roller for feeding out the sheet, and a lifting/lowering plate shiftable between a position where the sheet is urged against said pick-up roller and a position where the urging is released, and rotation of said pick-up roller and a lifting/lowering movement of said lifting/lowering plate are effected by driving of said driving source. 11. An image forming apparatus according to claim 9, wherein said drive transmitting means includes a gear train in said main body of said apparatus, and a gear train provided in said sheet feeding cassette for transmitting the driving to said second sheet feeding means, so that, when said sheet feeding cassette is mounted to said main body of said apparatus, said gear trains are interconnected, thereby permitting transmission of the driving to said second sheet feeding means. 12. An image forming apparatus according to claim 9, wherein said drive transmitting means includes a first gear train capable of transmitting a rotational force of said driving source to said first sheet feeding means when said driving source is rotated normally, and further comprising a first driving side gear by which the rotational force of said driving source is transmitted to said first gear train, a first non-toothed gear provided engageable with said first driving side gear, and engaging/disengaging means releasably engaged with said first non-toothed gear and adapted to prevent rotation of said first non-toothed gear in a condition that a non-toothed portion of said first non-toothed gear is opposed to said first driving side gear. 13. An image forming apparatus according to claim 9, wherein said drive transmitting means includes second rotational force transmitting means for transmitting a rotational force of said driving source to said second sheet feeding means when said driving source is rotated normally, rotational force interrupting means for interrupting a rotational force transmitting condition of said second rotational force transmitting means when said second sheet feeding means is rotated by a predetermined amount by means of said second rotational force transmitting means, and operation switching means for releasing an operation of said rotational force interrupting means to bring said second rotational force transmitting means to the rotational force transmitting condition when said driving source is rotated reversely. 14. An image forming apparatus according to claim 13, further comprising first rotational force transmitting means for transmitting the rotational force of said driving source to said first sheet feeding means when said driving source is rotated normally, and simultaneous rotation preventing means for interrupting transmission of the rotational force to said first sheet feeding means by said first rotational for ce transmitting means when said second sheet feeding means is rotated by said second rotational force transmitting means. 15. An image forming apparatus according to claim 13, wherein said second rotational force transmitting means has a second gear train, and further comprising a second driving side gear by which the rotational force from said driving source is transmitted to said second gear train, and a second non-toothed gear engageable with said second driving gear, and wherein said rotational force interrupting means includes an engaging/disengaging arm detachably engaged with said second non-toothed gear and adapted to prevent rotation of said second non-toothed gear in a condition that a non-toothed portion of said second non-toothed gear is opposed to said second driving side gear, and rotation biasing means for biasing rotation of said second non-toothed gear to engage said second non-toothed gear with said second driving side gear when engagement between said second non-toothed gear and said engaging/disengaging arm is released, and said operation switching means includes an operating lever rotated by the rotational force of said driving source when said driving source is rotated reversely, thereby acting on said engaging/disengaging arm to release the engagement between said second non-toothed gear and said engaging/disengaging arm. 16. An image forming apparatus according to claim 15, wherein said second gear train is provided with a one-way clutch for transmitting the rotation of said driving source to said second driving side gear when said driving source is rotated normally. 17. An image forming apparatus according to claim 15, wherein said operating lever is connected to one of gears in said second gear train through a one-way clutch, and the rotation when said driving source is rotated reversely is transmitted to said operating lever through said one-way clutch, thereby releasing the engagement between said second non-toothed gear and said engaging/disengaging arm. r. 10. A packing structure according to claim 1, wherein the core element is of a crystalline resin having a melting point at a temperature not lower than 140° C. 11. A packing structure according to claim 10, wherein the crystalline resin is selected from the group consisting of tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride (THV), polytetrafluoroethylene (PTFE), a tetrafluoroethylene-perfluoroalkoxy ether copolymer (PFA), a tetrafluoroethylene-hexafluoropropylene copolymer (FEP), an ethyne-tetrafluoroethylene copolymer (ETFE), polyvinylidene fluoride (PVDF), polyamide (PA), polybutylene terephthalate (PBT), and polyethylene terephthalate (PET). 12. A packing structure according to claim 1, wherein the rubber layer has a loss modulus (E") showing a peak at a temperature not exceeding -35° C. 13. A packing structure according to claim 1, wherein the rubber layer has a storage modulus (E') not exceeding 2.0×1010dyn/cm2at -35° C. 14. A packing structure according to claim 1, wherein the rubber layer has a surface resistivity not exceeding 106Ω/sq. 15. A packing structure according to claim 1, wherein the rubber layer is of a material selected from the group consisting of styrene-butadiene rubber (SBR), butadiene rubber (BR), isoprene rubber (IR), natural rubber (NR), low-nitrile rubber (NBR), ethylene-propylene-diene rubber (EPDM), butyl rubber (IIR), silicone rubber (Q), and phosphonitrilefluororubber (PNF). 16. A packing structure according to claim 1, wherein the rubber layer is of a material selected from the group consisting of epichlorohydrin rubber (ECO), nitrile rubber (NBR), chloroprene rubber (CR), urethane rubber (U), fluorosilicone rubber (FVMQ), hydrogenated nitrile rubber (H-NBR), chlorosulfonated polyethylene rubber (CSM), chlorinated polyethylene rubber (CPE), chlorinated butyl rubber (CI-IIR), brominated butyl rubber (Br-IIR), acrylic rubber (ACM), a mixture (NE) of NBR and an ethylene-propylene-diene terpolymer (EPDM), and ethylene-propylene rubber (EPR). 17. A packing structure comprising a combination of: a core element of rubber material which is highly impermeable to a refrigerant gas or volatile liquid; and a thin coated rubber layer on the core element and having a glass transition temperature lower than the lowest temperature at which the packing structure can be used; wherein the combination is a cured product of a) a liquid rubber layer covering an entire surface of b) the core element in semi-cured rubber form. ate end portions contiguously joining said side portions. 3. The unitary boundary gasket of claim 2 wherein said longitudinally extending flat side portions are in different planes. 4. The unitary boundary gasket of claim 1 wherein each of said waffle pattern regions comprises a longitudinally extending span of approximately 75 percent of the distance between said bolt apertures. 5. The unitary boundary gasket of claim 1 wherein said plurality of segmented sealing beads extend circumferentially about the gasket and radially outwardly of each of said spaced apertures. 6. The unitary boundary gasket of claim 1 wherein the thickness of each of said waffle pattern regions is approximately equal to that of each sealing bead. 7. The unitary boundary gasket of claim 6 wherein each said segmented sealing bead is positioned immediately above a second unitary sealing bead positioned on the opposite side of said gasket. 8. The unitary boundary gasket of claim 7 wherein said metallic carrier comprises a bolt crush resistant medium, wherein the radially inner boundaries of said carrier extend into areas proximal to said bolt apertures. 9. The unitary boundary gasket of claim 1 wherein said metallic carrier is a stiffening member for said gasket. 10. The unitary boundary gasket of claim 9 wherein said metallic carrier is formed of stamped steel.