| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing structure in which even though an abnormal noise is generated or driving load is increased due to secular changes and the like, there is no need of replacement of a shaft and a bearing, and the running cost in the case of generation of an anomaly and cost for replacement in recycling are reduced. SOLUTION: The bearing structure is applied to a sheet feed-transfer roller, etc. to be used in a feeder of an image-forming device. The bearing 4 is held at two positions in a hole 3a of a bearing-holding member 3. A pair of slots 2a for attaching an E-type locating snap-ring 5 are provided in a rotation shaft 2 of the sheet feed-transfer roller 1 so as to be positioned in the outside of the bearing 4 attached into the hole 3a. The E-type locating snap-ring 5 inhibits the bearing 4 from falling out and controls the rotation shaft 2 in the thrust direction. For instance, the bearing structure is used on the market in the 1st-step usage-pattern, and moved to the 2nd-step usage-pattern at the time of maintenance. That is, when malfunction has occurred after an elapse of time, the location of a worn-out part can be shifted. COPYRIGHT: (C)2005,JPO&NCIPI
|
