| 摘要 |
PURPOSE:To enable the spacing between a clamping part and a paper feeder to be obtained with high accuracy and enable the number of component parts to be reduced, by forming a tractor cover by integrally molding a slidable part and the clamping part at a predetermined angle therebetween, in a printer. CONSTITUTION:In the tractor cover 12, the distance l1 from an end part on the clamping part 34 side of the slidable part 32 to the first engaging pawl 42 is slightly smaller than the distance l2 from an end part on the clamping part 34 side of a tractor 10 to an engaging projection 48. Therefore, when the printer is driven, the pawl 42 is energized in the direction of an arrow C by the projection 48, and a contact part 24 of the clamping part 34 is held by the tractor 10 in contact with the latter. The clamping part 34 and the slidable part 32 are molded as one body, so that the angle formed between them, the thickness of the contact part 24 and, further, the spacing between the clamping part 34 and a pin feeding unit 4 can be obtained with high accuracy. When the printer is stopped, a paper 5 is fitted or detached by moving the cover 12 to the position indicated by a dot-dash line. At this time, the pawl 44 is engaged to a guide 46, thereby preventing the tractor cover 12 from slipping off. |
