摘要:
A slide rail includes an outer rail including a first rail board and a pair of rims projecting from the first rail board, forming first grooves, an inner rail inserted between the first grooves and including a second rail board narrower than the first rail board and a pair of rims projecting from the second rail board, forming second grooves, a large-diameter roller held between the first grooves and attached to a leading side of the second rail board in a direction in which the inner rail is inserted, and a small-diameter roller held between the second grooves and attached to a leading side of the first rail board in a direction in which the inner rail is drawn out. The first and second rail boards include protruding portions extending along the long side and protruding outward.
摘要:
A slide rail comprises a fixed rail; a movable rail slidably attached to the fixed rail; and a roller that is attached to at least one of the fixed rail and the movable rail and runs on the other one of the fixed rail and the movable rail as the movable rail slides, the other one of the fixed rail and the movable rail including a running wall on which the roller runs and sliding contact walls that come into sliding contact with opposite side surfaces, in a direction of a rotation axis of the roller, of the roller, wherein the roller includes a metal-made roller main body and a pair of resin-made sliding plates that sandwich the roller main body from opposite sides thereof in the direction of the rotation axis of the roller, and the pair of sliding plates are in sliding contact with the sliding contact walls.
摘要:
An image forming apparatus includes a sheet feeding device (1). The sheet feeding device (1) includes a sheet feeding cassette (2), a push-up member (4), a drive shaft (5), and a rotation detecting device (6). The rotation detecting device (6) includes an output gear connected to the drive shaft (5). The output gear includes a gear main body provided with a gear tooth on its outer edge; and an electrode holding member that is attached to the gear main body. The electrode holding member is rotatably provided in the case (9) and a rotating electrode is attached to the electrode holding member. The electrode holding member is formed of at least one thermoplastic resin selected from the group consisting of POM, PA, PBT, PP, PE, ABS resin, PS, PPE, PC, and PMMA. The gear main body is formed of a material whose strength is higher than thermoplastic resin of which the electrode holding member is formed.