Abstract: A plastic formed body having a pouring port 110 for pouring out highly wetting liquid that wets plastics to a high degree, wherein at least either a surface 110b that becomes a liquid-drip flow passage when said liquid drips at the pouring port 110 or a surface 110a that becomes a flow passage when said liquid is poured out, is coated with a fluorine-contained resin, and a surface of the fluorine-contained resin coating has an arithmetic mean roughness (Ra) in a range of 0.4 to 200 ?m in the surface roughness measurement and an element mean height (Rh) in a range of 0.04 to 10 as defined by mean height (Rc)/element mean length (RSm) in the linear roughness measurement. The formed body effectively prevents said highly wetting liquid from dripping at the pouring port 110.

Abstract: A plastic formed body having a pouring port 110 for pouring out highly wetting liquid that wets plastics to a high degree, wherein at least either a surface 110b that becomes a liquid-drip flow passage when said liquid drips at the pouring port 110 or a surface 110a that becomes a flow passage when said liquid is poured out, is coated with a fluorine-contained resin, and a surface of the fluorine-contained resin coating has an arithmetic mean roughness (Ra) in a range of 0.4 to 200 ?m in the surface roughness measurement and an element mean height (Rh) in a range of 0.04 to 10 as defined by mean height (Rc)/element mean length (RSm) in the linear roughness measurement. The formed body effectively prevents said highly wetting liquid from dripping at the pouring port 110.

Abstract: Coupling holding means 50 comprising retainers 53 and retainer engaging portions 52 for holding a coupled state is provided between a socket S10 and a plug P10 of a coupler. Engaging pawl portions 54 are formed on the inner sides of a pair of retainers 53 provided on both sides of a nozzle portion 32. By causing the retainers 53 to move outwardly in a coupling operation, a gap between the retainers 53 and the nozzle portion 32 can be made small. By forming interference preventing portions 58 in the engaging pawl portions 54, the retainers 53 can be provided at a smaller interval than the outer diameter of the nozzle portion 32 whereby the coupler can be made even more compact. Further, by forming the retainers 53 higher than the foremost end portion of the nozzle portion 32, the nozzle portion 32 can be protected by the retainers 53 even in an unexpected event such as falling and damage will not extend directly to the nozzle portion 32.

Abstract: A coupler having a socket with a valve and an element for energizing the valve in a closing direction, and a plug having a valve and an element for energizing the valve of the plug in a closing direction, where the plug is detachably fitted and coupled with the socket and is capable of communicating with the socket by opening the valve of the plug and the valve of the socket in the fitted and coupled state, A key groove or a key is provided in either the socket or the plug, and a ring member having a key or a key groove which can be fitted with the key groove or the key is provided in the other of the socket and the plug and the ring member is rotatable about a central axis of connection of the socket and the plug.

Abstract: In, for example, a direct methanol type fuelcell, fuel is allowed to be injected little by little when the fuel is injected and supplied from the outside to a fuel receiving part reduced in the amount of remaining fuel on the fuelcell body side and an electromotive part can be prevented from being damaged by keeping the pressure in the fuel receiving part at a fixed level or less when the fuel is injected. Specifically, when a fuel CL filled in a refuelling container C is injected into a fuel receiving part T in several lots, a fuel injecting operation is repeated in which the volume of the refuelling container C is shrunk and reduced to supply the fuel into the fuel receiving part T in a proper amount and then the original volume of the refuelling container is restored to thereby absorb the atmospheric gas in the fuel receiving part T, which makes it possible to inject fuel continuously without any hindrance to the injection of the fuel.

Abstract: Coupling holding means 50 comprising retainers 53 and retainer engaging portions 52 for holding a coupled state is provided between a socket S10 and a plug P10 of a coupler. Engaging pawl portions 54 are formed on the inner sides of a pair of retainers 53 provided on both sides of a nozzle portion 32. By causing the retainers 53 to move outwardly in a coupling operation, a gap between the retainers 53 and the nozzle portion 32 can be made small. By forming interference preventing portions 58 in the engaging pawl portions 54, the retainers 53 can be provided at a smaller interval than the outer diameter of the nozzle portion 32 whereby the coupler can be made even more compact. Further, by forming the retainers 53 higher than the foremost end portion of the nozzle portion 32, the nozzle portion 32 can be protected by the retainers 53 even in an unexpected event such as falling and damage will not extend directly to the nozzle portion 32.

Abstract: A stainless steel material for a fuel cell, used for a fuel cell or a cartridge for the fuel cell, having a magnetic permeability of 1.000 to 2.500, and forming a layer having a value of chromium atomic %/iron atomic % of not less than 3.0 in the most surface thereof, and/or the layer of thickness of not less than 12 nm calculated as SiO2 having an oxygen atomic % of not less than 20%. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the stainless steel material reliably suppresses the elution of metal ions thereof.

Abstract: A fuel cell socket, to which a fuel cell plug for discharging a liquid fuel for a fuel cell is detachably connected, includes a cylindrical socket body having a diameter-reduced part provided at a substantially intermediate position in an axial direction, a valve having a shaft portion which is protruded toward a connection side through the diameter-reduced part, an elastic cylindrical fuel introduction path which is provided to surround the shaft portion protruded from the diameter-reduced part and has a fastener provided at a side portion, and an auxiliary elastic body which is provided outside the fuel introduction path and pushes the fastener toward the connection side.

Abstract: A bag-like container with a spout in which a plastic linear fastener is interposed in an upper part of the container so that when water content or the like is to be supplied after contents of a liquid food container or the like have been administered to a subject, opening and closing the linear fastener enables the water content or the like to be supplied in an uncomplicated manner without the use of a separate member such as a spout that is an open part for pouring food, water, or the like into the container.

Abstract: In, for example, a direct methanol type fuelcell, fuel is allowed to be injected little by little when the fuel is injected and supplied from the outside to a fuel receiving part reduced in the amount of remaining fuel on the fuelcell body side and an electromotive part can be prevented from being damaged by keeping the pressure in the fuel receiving part at a fixed level or less when the fuel is injected. Specifically, when a fuel CL filled in a refuelling container C is injected into a fuel receiving part T in several lots, a fuel injecting operation is repeated in which the volume of the refuelling container C is shrunk and reduced to supply the fuel into the fuel receiving part T in a proper amount and then the original volume of the refuelling container is restored to thereby absorb the atmospheric gas in the fuel receiving part T, which makes it possible to inject fuel continuously without any hindrance to the injection of the fuel.

Abstract: A coupler for a fuel cell according to the embodiment has a socket and a nozzle. The socket is provided on the fuel cell and has a valve body and an urging component for urging the valve body in the direction of closing it. The nozzle is provided on a fuel cartridge for storing a liquid fuel for the fuel cell and has a valve body and an urging component for urging the valve body in the direction of closing it. The valve bodies are opened to supply the liquid fuel in the fuel cartridge to the fuel cell when the nozzle is connected to the socket. The coupler for a fuel cell has a lubricity providing portion for applying lubricating properties. The lubricity providing portion is disposed on the sliding contact surfaces of the socket and the nozzle and makes sliding contact with each other when the socket and the nozzle are connected to each other or separated from each other.

Abstract: A coupler (1) for a fuel cell according to the embodiment has a socket (1s) and a nozzle (1n). The socket (1s) is provided to the fuel cell (2) and has a valve (40). The nozzle (1n) is provided to a fuel cartridge (3) for storing a liquid fuel for the fuel cell (2) and has a valve (14). The coupler (1) supplies the liquid fuel stored in the fuel cartridge (3) to the fuel cell (2) by opening both the valves (14, 40) by contacting mutually when the socket (1s) and the nozzle (1n) are connected. At least one valve selected from the socket side and the nozzle side has a head section (14a or 40a) and rod sections (14b and 14c, or, 40b and 40c) arranged at opposite ends axially of the head section (14a or 40a), and the rod section (14b or 40b) on the contact side is mainly made of a metal member.

Abstract: A coil spring for fuel cells, used for a fuel cell or a cartridge for the fuel cell, comprising an austenite type stainless steel without any nickel layer formed on the surface thereof, and having a cationic index I of not more than 60 as expressed by the following formula (1), I=A+2B+3C??(1) wherein A, B and C represent, respectively, a concentration (ppb) of monovalent metal ions, a concentration (ppb) of metal ions which are neither monovalent nor trivalent, and a concentration (ppb) of trivalent metal ions per the coil spring in a methanol solution of when the coil spring is dipped in the methanol solution (containing 1% of water+4000 ppm of formic acid) and preserved therein at 60° C. for one week. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the coil spring reliably suppresses the elution of metal ions thereof.

Abstract: A fuel cell socket (4) to which a nozzle (8) of a fuel cartridge is removably connected includes a socket body (32) having a nozzle inserting port (31) into which the nozzle (8) is inserted; a valve mechanism housed in the socket body (32); an elastic holder (39) arranged in the socket body (32) to seal a liquid fuel passage when the valve mechanism is opened; and a guide member (38) arranged within the socket body (32) to guide a leading end outer peripheral portion of the nozzle (8) connected to the socket and to restrict an inclination of the nozzle (32) in a connected state.

Abstract: Liquid fuel received in a container can be injected manually in a safe, easy and convenient manner. In a fuel cell cartridge for fuel cells in which at a port portion (14) of the container (10) in which the liquid fuel is received, there is provided a plug (30P) that is adapted to be connected with a fuel cell for filling the fuel thereinto, a bellows portion (15) acting as a portion capable of extension and contraction is formed in at least a part of the container (10), and on the plug (30P), there is provided a valve mechanism (34) which is held in a normally closed state in a free state thereof, and is opened when the plug is connected with the fuel cell (70).

Abstract: A fuel cartridge 5 for a fuel cell includes a cartridge body 8 containing liquid fuel for the fuel cell, and a nozzle part 9 supplying the liquid fuel to a fuel cell body. The nozzle part 9 has a nozzle head 12 provided on the cartridge body 8 and an insertion portion 14 which is inserted in a socket part 6 of the fuel cell body, and a valve mechanism (19, 20, 21, 22) arranged in the nozzle head 12. A recess portion 15 is provided in a tip of the insertion portion 14 of the nozzle head 12. Liquid fuel remaining on the tip of the nozzle part 9 is accommodated in the recess portion 15.

Abstract: A fuel cartridge (6) for a fuel cell is provided with a cartridge body (7) for storing a liquid fuel for the fuel cell. The cartridge body (7) is provided with a nozzle section (8) which has therein a valve mechanism configured of a valve body (13) and the like. A nozzle attachment (9) having a nozzle inserting portion (21) to be connected to the fuel cell is removably attached to the outer circumference side of the nozzle section (8).

Abstract: A stainless steel material for a fuel cell, used for a fuel cell or a cartridge for the fuel cell, having a magnetic permeability of 1.000 to 2.500, and forming a layer having a value of chromium atomic %/iron atomic % of not less than 3.0 in the most surface thereof, and/or the layer of thickness of not less than 12 nm calculated as SiO2 having an oxygen atomic % of not less than 20%. Even when brought into contact with the content solution exhibiting acidity of the fuel cell, the stainless steel material reliably suppresses the elution of metal ions thereof.

Abstract: A couple 10 includes a valve seal member 71 (36) provided in a flow path between a valve 35 and a coupler main body 31 which can be opened and closed, and a container-inside-outside seal member (73) which is used as both a container seal member (73) for forming a seal between the container main body 31 and a valve holder 38 and a holder seal member (73) for forming a seal between the coupler main body 31 and the valve holder 38. By this arrangement, the number of the seal members can be reduced, processes for assembling can be simplified and the manufacturing cost can be saved. Mounting position of the holder 38 can be controlled by a mounting position control section 74 to enable sealing for maintaining energizing force by energizing means 39 constant and ensuring opening of the coupler as well as for securing the sealed state accurately.

Abstract: A recess 32a is formed in the foremost end portion of an insertion portion of a plug P10. A lubricating film 72 is provided as lubricating property imparting means 70 for imparting lubricating property to at least one of contact seal surfaces A formed by fitting and coupling of a socket S10 and the plug P10. Lubricating property is imparted to the contact seal surface A formed by fitting and coupling of the socket S10 and the plug P10 by the lubricating film 72 of the lubricating property imparting means 70 to thereby achieve smooth coupling and secure sealing property by close fitting of the socket S10 with the plug P10.