Abstract:
PURPOSE:To obtain a precise neutral return motion by supporting a rotating body through a collar member, and regulating the rotations of the collar member and a spiral spring by stoppers in a one in which the rotating body rotatably supported in a housing is returned to the neutral rotating position by the use of the spiral spring. CONSTITUTION:A real wheel steering device B has a spool valve 42 forming an oil pressure copy mechanism together with a power cylinder 35 disposed in a second housing 41 placed on a housing 32 containing the power cylinder 35 therein. The spool valve 42 is driven in the axial direction through a connecting rod 51 by the rotation of a cam plate 52 receiving the force of a spiral spring 62. In this case, a collar member 58 for locking the inner end part of the spiral spring 62 is freely fitted to the rotating shaft 52b of the cam plate 52. The rotation in the opposite direction to the spiral direction is regulated by the contact of the protruded part 58a of the collar member 58 to a first stopper 63a on the housing 11 side, and the rotation in the spiral direction is regulated by the contact of the engaging part 62b of the spiral spring 62 to a second stopper 63d.
Abstract:
PROBLEM TO BE SOLVED: To remove a fine dust contained in gas flowing in the gas passage communicated to a fuel cell. SOLUTION: The fuel cell system is provided with the fuel cell 20 to generate power by receiving gas supply and a filter device 10 to remove impurities in the gas by being arranged in an air supply passage 71, a fuel supply passage 74, a hydrogen circulation passage 75, and a purge passage 76. The filter device 10 has a spongy matter impregnated with antifreeze 13 as a filter. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a cell voltage monitoring device for a fuel cell capable of improving the workability of mounting the cell on a terminal, and a method of mounting the same on the cell. SOLUTION: (1) The cell voltage monitoring device for a fuel cell 1 comprises a plurality of conductive wires 3, and a soft resin sheet 4 in which the plurality of conductive wires 3 are embedded. (2) The method of mounting the cell voltage monitoring device for a fuel cell 1 on the fuel cell stack 23 comprises a process of simultaneously inserting tip end part 2a of respective cell voltage monitoring terminals 2 into terminal mounting holes 5 of a stacked module, and a process of mounting respective cell voltage monitoring terminals 2 into terminal mounting holes 5 of corresponding modules. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PURPOSE:To simplify a structure by constituting an assist delay preventing mechanism to be housed in a four wheel steering device such that an intermediate rotation member is placed between an input rotation member interlocked with steering of front wheels and an output rotation member for steering rear wheels with spiral springs interposed between the respective rotation members. CONSTITUTION:A rear wheel power steering device, which is interlocked with steering of front wheels, rotates a rear wheel servo valve 60 via a steering characteristics applying mechanism 30 and an assist delay preventing mechanism 40, whereby supply/ exhaustion of hydraulic oil of a rear wheel power cylinder is controlled to power-steer the rear wheels. In this case the assist delay preventing mechanism 40 is equipped with an input rotation member 41 which rotates interlocked with steering of the front wheels, an output rotation member 43 for steering the rear wheels and an intermediate rotation member 42 placed between both rotation members 41, 43. In addition first and second spiral springs 44, 45 are provided between the rotation members 41, 42 and between the members 42, 43 respectively so that the respective spiral springs 44, 45 are deflected when a transmission torque exceeds an initial torque so as to prevent the rotation of the input rotation member 41 from being transmitted to the output rotation member 43.
Abstract:
PURPOSE:To obtain always favorable rear wheel steering properties with a simple structure by installing a steering property giving mechanism, which is operated according to the output of a front wheel steering device, between input and output shafts positioned on the same axis inside the housing of a rear wheel steering device. CONSTITUTION:A rear wheel power steering device 20 has a rear wheel servo valve 50 for limitting the supply and exhaust of pressure oil for a rear wheel power cylinder, and is equipped with a steering property giving mechanism 30 and an assist delay avoiding mechanism 40 on the axis same as the output shaft 51. The steering property giving mechanism 30 has an eccentric shaft 32 coupled with the rear side of an input shaft 31 to which the steering motion of a front steering device is transmitted through operation cables 65a and 65b, and it makes a driving gear 34 (the number of teeth, n), which is supported freely in rotation by the eccentric shaft 32, engage with the inner tooth gear(the number of teeth, n+1) of a following rotation member 33 opposed to the input shaft 31. A locking pin 36 projecting at the driving gear 34 locks in a guide groove 37 in the radial direction, being formed at the inner end face of a housing 31.
Abstract:
PURPOSE:To always obtain optimum rear wheel steering characteristic with simple construction by providing a steering characteristic adding mechanism consisting of V-shaped guide grooves and a pair of engaging elements to engage with them, between an input shaft and a followingly rotating member continuously engaged with this in the housing of a rear wheel steering device. CONSTITUTION:A followingly rotating member 33 having an eccentric axis of rotation O2 against the axis of rotation O1 of an input shaft 31 and connected to an output shaft 51 is provided in the housing 21 of a rear wheel steering device 20, and V-shaped a pair of guide grooves 37 which are respectively extended in the radial direction and the outer ends 37a are opened free from the outer circumferential face of the followingly rotating member 33, are formed on the face of the member 33 opposing to the input shaft 31. A pair of engaging elements 34 engaging with the respective guide grooves 37 are projectingly provided on the end face of the input shaft 31 to constitute a steering characteristic adding mechanism 30. Respective engaging elements 34 are provided so as to have same eccentricity from the rotating axis O1 mutually and alternately enter respective opposing guide grooves 37 through the opened outer end 37a, according to the rotation of the input shaft 31.
Abstract:
PURPOSE:To secure a steering characteristic suitable for high-speed running by forming a radial engaging groove in an input shaft where an edge of a cable is rolled on, and engaging an eccentric pin, projectingly installed in an output shaft at the rear-wheel side, with this groove, in a device which transmits any motion of each front wheel to a rear-wheel steering system via the cable. CONSTITUTION:In a front-wheel steering system 21, a pinion 16 of a pinion shaft 15 is engaged with a rack 14 of a front-wheel rack shaft 10 connected to each front wheel 13, and a power cylinder 19 is assembled to this rack shaft 10. Likewise, in a rear-wheel steering system 38, a pinion 31 of a pinion shaft 30 is engaged with a rack 29 of a rear-wheel rack shaft 25 connected to each rear wheel 28, and a power cylinder 36 is assembled to this rack shaft 25. In this case, an eccentric pin 65 is installed in a rotary member housed free of rotation in a rear-wheel housing of the rear-wheel steering system 38, and this eccentric pin 65 is engaged with an engaging groove 66 radially formed in a pulley 35. Then, the other end side of cables 40, 41, whose each one end is connected to both ends of the front-wheel rack shaft 10, is rolled on this pulley 35.
Abstract:
PURPOSE:To enable the generation of damping force which is satisfactory over a wide range of velocity range by changing the effective area of an adjusting orifice in accordance with the relative velocity of a piston. CONSTITUTION:On an end of a cylinder 12 an orifice plate 30 having a constant orifice 34 and an adjusting orifice 36 is provided. On the one side of the said plate 30 an adjusting plate 60 which changes the effective area of the adjusting orifice 36 is arranged. And, an impeller 68 is connected to this adjusting plate 60, which is turned by the relationship between the turning torque of the impeller 68 and the energizing force of a spring 72 to change the effective area of the adjusting orifice 36.
Abstract:
PROBLEM TO BE SOLVED: To provide a gasket for a fuel cell passing through gas or produced water without causing dissolution of glass fibers nor corrosion of metal in a constituting element such as an insulator. SOLUTION: The gasket 22 for the fuel cell which is a constituting element of the fuel cell and used in the insulator 13 in which a fluid passage 118 is formed is constituted with a separate component comprising a core material 23 having a fitting means for being detachably fit to a base which is an end part faced to the fluid passage 18 in the insulator 12, and a seal member fixed to the core material 23 so as to shut off the insulator 13 from the fluid passage18. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To materialize a load-displacement characteristic with small hysteresis in a laminated disc spring laminated in parallel. SOLUTION: A plurality of disc springs 10 are laminated in parallel. The surface roughness of the contact surface of respective disc springs 10 is set within the range from Rmax 1.0 or more to 2.0 or less. A dissimilar material layer is provided between respective disc springs 10. When the surface roughness is within the range, the power loss by rubbing caused by the friction between the disc springs is reduced. When providing the dissimilar material layer between respective disc springs 10, the characteristic is not deteriorated even by long term use. Therefore, a load-displacement characteristic with small hysteresis is obtained over a long period of time. COPYRIGHT: (C)2003,JPO