| 摘要 |
PROBLEM TO BE SOLVED: To provide a runner structure for a sliding door in which the sliding door is moved slowly, namely, the sliding door is temporarily stopped at any arbitrary opening position just for a predetermined time.SOLUTION: The runner structure for the sliding door comprises a unit member 30 including two regulation rollers 33b, 33c which are supported by a base member 33 in a rotatable manner, and a free roller 40 which is held between a gear member 32 and the base member 33 and rolled between the regulation rollers 33b, 33c. The unit member 30 includes a tapered portion in which a portion closer to the regulation roller 33c is made more proximate to the gear member 32 than a portion closer to the regulation roller 33b. When opening the sliding door, the gear member 32 is rotated in an opening direction by a rack member, the free roller 40 rides on the opening-side regulation roller 33b and idles. When stopping opening the sliding door, the gear member 32 is rotated in a closing direction by first energizing means, and the free roller 40 rides on the closing-side regulation roller 33b between the gear member 32 and the base member 33 and idles. |
