38results about How to "Narrowing of clearance" patented technology

The feeding apparatus 50 includes a hopper 51 that is provided operable to support the papers in inclined attitude and pivot around a pivot axis 51a, and a feed roller 53 that is provided at a feed roller shaft 54 and feeds the paper to the downstream side by rotating in contact with the paper. When seen from the side view of the feeding path, guide rollers 57 and 58 are provided near the feed roller 53 and are driven to rotate in contact with paper. A movable member, provided near the feed roller 53, pivots around a pivot axis 63a so that the movable member moves backward and forward to the feeding path. Accordingly, a clearance between the feed roller 53 and the hopper 51 is narrowed.

A crawler having a crawler pin and a crawler bush having lubrication between the crawler pin and the crawler bush without lowering the strength of the crawler at the running time, thereby to prevent the creak or seizure, as might otherwise be caused at the running time. A metallic sliding member having an excellent wear resistance can be arranged in the clearance between the crawler bush and the crawler pin. The metallic sliding member can be capable of holding lubricating oil and / or a lubricant. In addition, the clearance between the core bush and the crawler pin can be narrowed, so that the resulting structure retains the imbalance load on both the crawler bush and the crawler pin.

A developing device includes spiral wings, a forward double spiral wing, clearance portion, backward double spiral wing, and short lead backward spiral wing installed on the rotational shaft of a stirring and carrying unit. The forward and backward double spiral wings have spiral directions opposite to each other, and together are formed to have an equal lead to the spiral wings. The supplying and carrying unit is disposed above the stirring and carrying unit, and the supplying and carrying unit and the stirring and carrying unit are divided by a partition having a communication portion installed at a position corresponding to the forward and backward double spiral wings.

An apparatus for achieving the return of a chain to a rear derailleur tension pulley more easily by means of pedaling action when the chain falls off from the tension pulley is provided. The rear derailleur is equipped with a base component, a link mechanism, a movable component, Outer Plate 20, Inner Plate 21, Guide Pulley 22, Tension Pulley 23, and Chain Return Section 32. The base component is a component which is mounted on the frame. The link mechanism is a mechanism of which one end is mounted on the base component. The movable component is a component which is mounted on the other end of the link mechanism, and which can be relatively displaced from the base component. The outer plate is a component which is mounted on the movable component so as to undulate like a see-saw. The inner plate is a component which is installed so as to face the outer plate. The guide pulley is a pulley which is mounted onto a portion on one edge of the plates, between the plates, so as to freely rotate and move in the axial direction, and which can be engaged with the chain. The tension pulley is a pulley which can be engaged with the chain, and is mounted onto a portion on the other edge of the plates, between the plates, so as to freely rotate. The chain return section is installed at a position on the inner plate which is proximal to the position at which the tension pulley is mounted, in a manner so that the clearance from the chain at this position is narrower as compared to the clearance at other positions.

A metallic sliding member which is improved in initial compatibility and significantly reduced in frictional resistance: and a process for producing the member. The process comprises causing fine particles of molybdenum disulfide to collide against the surface of a base to form a layer containing molybdenum disulfide, serving as a solid lubricant, as a surface layer having a depth not larger than 20 μm from the surface.

A container holder includes a holder body, a cover, and a swing arm. The cover has a front end, a rear end, a first engager disposed adjacent to the rear end. The swing arm has a sliding groove extending in a direction crossing the up / down directions of the holder body, holds the first engager of the cover slidably and swingably with the sliding groove, and is held swingably to the holder body at one of the opposite ends. When the swing arm swings the cover from a close position to an open position, the swing arm lets the cover pass firstly a semi-open position, at which the sliding groove guides the cover so as to decline the rear end of the cover, and then lets the cover swing to the open position along with the swinging swing arm.

The feeding apparatus 50 includes a hopper 51 that is provided operable to support the papers in inclined attitude and pivot around a pivot axis 51a, and a feed roller 53 that is provided at a feed roller shaft 54 and feeds the paper to the downstream side by rotating in contact with the paper. When seen from the side view of the feeding path, guide rollers 57 and 58 are provided near the feed roller 53 and are driven to rotate in contact with paper. A movable member, provided near the feed roller 53, pivots around a pivot axis 63a so that the movable member moves backward and forward to the feeding path. Accordingly, a clearance between the feed roller 53 and the hopper 51 is narrowed.

A developing device includes spiral wings, a forward double spiral wing, clearance portion, backward double spiral wing, and short lead backward spiral wing installed on the rotational shaft of a stirring and carrying unit. The forward and backward double spiral wings have spiral directions opposite to each other, and together are formed to have an equal lead to the spiral wings. The supplying and carrying unit is disposed above the stirring and carrying unit, and the supplying and carrying unit and the stirring and carrying unit are divided by a partition having a communication portion installed at a position corresponding to the forward and backward double spiral wings.

A container holder includes a holder body, a cover, and a swing arm. The cover has a front end, a rear end, a first engager disposed adjacent to the rear end. The swing arm has a sliding groove extending in a direction crossing the up / down directions of the holder body, holds the first engager of the cover slidably and swingably with the sliding groove, and is held swingably to the holder body at one of the opposite ends. When the swing arm swings the cover from a close position to an open position, the swing arm lets the cover pass firstly a semi-open position, at which the sliding groove guides the cover so as to decline the rear end of the cover, and then lets the cover swing to the open position along with the swinging swing arm.

The structure of a clinch portion of a mounting cup is provided which can retain a gasket. The clinch portion includes a curl portion continuous with an upper end of an outer circumferential wall at an inner circumferential edge of the curl portion, and a curl skirt portion having an upper end continuous with an outer circumferential edge of the curl portion. The curl portion is made of a plurality of curved planes having different radii extending from the inner circumferential edge to outer circumferential edge. A space a portion of the gasket can enter is formed between a virtual curved plane with a radius constituting the inner plane of the curl portion and an inner curved plane or an outer curved plane, or between the virtual curved plane and both the inner and outer curved planes.