| 摘要 |
A chain guide is provided, which can readily achieve, with a simple structure, both favorable attachability and tightness of a guide shoe relative to a base member, even though the base member has side wall ribs on both left and right side edges. A base member of a chain guide includes an upstream engagement portion and downstream engagement-portions, while a guide shoe includes an upstream hook and downstream hooks. Downstream engagement portions include restricting portions. The downstream hooks are hooked to the downstream engagement portions from an outer side in a guide width direction by twisting and elastically deforming the guide shoe in a state where the upstream hook is engaged with the upstream engagement portion. |
| 主权项 |
1. A chain guide comprising a guide shoe that slidably guides a running chain, and a base member that supports the guide shoe,
the base member including a first side wall rib formed on a first side edge in a guide width direction of the base member, a second side wall rib formed on a second side edge in the guide width direction of the base member, an upstream engagement portion formed one side of the first side wall rib in a guide longitudinal direction, and a downstream engagement portion formed to the first side edge, which is the other side of the first side wall rib in the guide longitudinal direction, the guide shoe including an upstream hook engaging with the upstream engagement portion and a downstream hook engaging with the downstream engagement portion, the downstream engagement portion including a restricting portion that restricts movement of the downstream hook toward an upstream side, and the downstream hook being formed so as to be hooked to the downstream engagement portion from an outer side in the guide width direction by twisting and elastically deforming the guide shoe in a state where the upstream hook is engaged with the upstream engagement portion. |
