| 摘要 |
To provide a chain guide device such that it is unnecessary to make a chain guide body a thick and heavy member and productivity of the chain guide body can be enhanced. The chain guide body (10) is split into a left guide half (41) having a left-side upper split surface (43) and a left-side lower split surface (46) which are formed along the longitudinal direction of a chain (26) and a right guide half (42) having a right-side upper split surface (48) and a right-side lower split surface (52) . The guide bodies (41 and 42), which are roughly U-shaped, can be easily demolded after injection molding, and, therefore, productivity is enhanced. The contact of the chain (26) with the split surfaces is lessened, as compared with the case where split surfaces are inclined at an angle relative to the longitudinal direction of the chain (26). Accordingly, wearing of the split surfaces (43, 46, 48, 52) is restrained, and it is unnecessary to make the chain guide body (40) greater in thickness and weight.
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