| 摘要 |
<p>PURPOSE: To provide a transmission gear contact part structure for cartridge type operation recorder in which the transmission gears of the body and cartridge can be meshed reliably. CONSTITUTION: When a cartridge 11 is set in a body 1 and the power output gear A5 of a clock mechanism 50 in the body 1 is meshed with a driven gear A7, an arcuate space adjusting protrusion 15 having center on the axis 34 of the driven gear A7 and radius of curvature, determined by subtracting the radius at a large diameter part 55e from the ideal dimension between axes when the output gear A5 is meshed with the driven gear A7, abuts against the large diameter part 55e of the shaft 55d of output gear A5. An oscillation arm 55 supporting the output gear A5 is urged by a coil spring 56 toward the driven gear A7 side.</p> |
