| 摘要 |
A carriage assembly of a printer employing a movable print head is disclosed. In the carriage assembly, bosses provided with respective bearing supporting holes each inner circumferential surface of which has a predetermined radius of curvature are formed at a side of a carriage, and bearing bushings each of which has an outer circumferential surface having a different predetermined radius of curvature corresponding to that of the bearing supporting hole, and makes a spherical pair with the bearing supporting hole. A shaft through-hole through which a guiding rod is inserted slidably is formed through each bearing bush. The bearing bushing can rotate freely in the bearing supporting hole, and therefore, the axes of the carriage assembly and the guiding rod can be aligned automatically.
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