摘要:
In a thrust bearing supporting a load in a thrust direction in a rotary portion, a size of a curved surface in the forward side of a lubricating groove with respect to a relative rotating direction of an opposing sliding member is set to be larger than a size of a curved surface in the rearward side of the lubricating groove with respect to the relative rotating direction, and a depth of the lubricating groove is set to be deeper than a starting point in the side of a groove bottom of the curved surface formed in the groove shoulder in the forward side of the lubricating groove with respect to the rotating direction, so that a lubricating effect and a cooling effect are increased.
摘要:
To improve assembly precision of a fuel cell by improving a sealing property. A first gasket 12 is integrally formed with a first gas diffusion layer 11 and a second gasket 14 is integrally formed with a second gas diffusion layer 13, and a hinge portion 15 connects the first gasket 12 to the second gasket 14. The gas diffusion layer incorporated gasket sandwiches a membrane-electrode from both sides in the thickness direction. A seal protrusion 12c is formed in a surface of the first gasket 12 or the second gasket 14 and comes into close contact with the membrane-electrode.
摘要:
A sealing structure of a fuel cell has a first gasket made of an elastomer and provided integrally on a separator, and a second gasket made of an elastomer and provided integrally on other separator. A membrane-electrode assembly is sandwiched or pinched by the first and second gaskets. The first gasket has a main lip in which a top portion brought into close contact with the membrane-electrode assembly is formed flat. The second gasket has a flat seal portion and a sub lip protruding from this flat seal portion at a position opposing the main lip. The flat seal portion and the sub lip are brought into close contact with the membrane-electrode assembly. The width of the top portion of the main lip is narrower than the width of the flat seal portion, and larger than the width of the sub lip.
摘要:
A unit mounting and dismounting mechanism includes a unit mountable in and dismountable from an apparatus body, an engaging portion provided in one of the apparatus body and the unit, a pressing member provided in the other of the apparatus body and the unit, the pressing member engaging with the engaging portion and pressing the unit against the apparatus body with a biasing force of a biasing member in a mounting direction of the unit when the unit is mounted in the apparatus body, and a release member provided in the unit, the release member being operated in a direction different from a dismounting direction of the unit from the apparatus body so as to move the pressing member against the biasing force of the biasing member in a direction to release pressing.
摘要:
In order to inexpensively provide gaskets which have good sealing performance, and which fulfill various applications by simply stamping out sheet-like gaskets in accordance with specifications, a gasket is obtained by integrally forming, with a sheet-like base material, a gasket part made of a rubber-like elastic material on at least one surface of the base material, said gasket part being composed of continuous protrusions provided with a fixed pattern. The sheet-like gasket parts produced in this manner are capable of inexpensively providing gaskets which fulfill various applications by simply stamping out the sheet-like gasket parts in accordance with various specifications.
摘要:
A fixing device includes: a fixing rotating member; a pressing rotating member pressed to the fixing surface of the fixing rotating member; a displacing mechanism that can displace the pressing rotating member at least at a first setting position that the pressing rotating member pressed to the fixing surface is located in a first position relative to the fixing rotating member and at a second setting position the pressing rotating member pressed to the fixing surface is in a second position shifted from the first position in the downstream or upstream side of a passing direction of the recording medium at the fixing process part; a guide member having a guide part that guides the recording medium to an introducing portion of the fixing process part; an adjusting mechanism that can adjust the position of the guide member in accordance with the displacement of the pressing rotating member to the first setting position or the second setting position.
摘要:
A wireless communication device includes an RF transceiver configured to up convert a base band signal to a transmitting RF signal, a configurable matrix power amplifier circuit configured to amplify the transmitting RF signal to produce an amplified RF signal, and an antenna configured to transmit a wireless signal in response to the amplified RF signal.
摘要:
To effectively prevent deformation of an MEA and shift of GDLs, first GDLs, second GDLs, and separators are layered in order at both sides of the MEA in the thickness direction thereof, the gaskets which sandwich an end portion of the MEA outside the first GDLs and the second GDLs are made from rubber or a synthetic resin material having rubber-like elasticity and integrally provided on the separators respectively, the first GDLs have end portions which are formed so as to protrude beyond outer peripheries of the second GDLs, and the gaskets have support step portions which can position and support the end portions of the first GDLs at the same height as the support height by the second GDLs.
摘要:
A fixing device includes a heating rotating body that is heated by a heater and rotates, a pressurizing rotating body that is in contact with a surface portion of the heating rotating body and rotates, and that forms a fixing portion, a pressing mechanism that presses the pressurizing rotating body against the heating rotating body and that uses a plurality of springs disposed on both end portions of the pressurizing rotating body in a direction of the second rotation shaft, and a switching mechanism that switches between a first pressing state in which first combination of springs selected from among the plurality of springs are maintained and a second pressing state in which second combination of springs selected from among the plurality of springs except the first combination of the springs are maintained.
摘要:
A fixing device including a heating member, a pressing member that presses the heating member, a switching unit that switches a press contact force of the pressing member and a container body that accommodates the heating member, the pressing member, and the switching unit, wherein the switching unit, includes a drive member that moves the pressing member in a predetermined direction and an auxiliary drive member that is connected to the drive member and relatively moves with the drive member, and the auxiliary drive member, in a case where the container body is placed in an image forming apparatus including a lid, switches between a operative association state and a nonoperative association state, and the auxiliary drive member including a returning section that returns a tip of the auxiliary drive member to a position crossing a movement trajectory of the lid in the nonoperative association state.