초록 ▼

Crawler travelling apparatus in which a crawler having crawler links is windingly laid over the driving wheel and the take-up wheel, guide wheels are disposed at the frame for guiding the lower travel portion of the crawler, and the lateral outer portions of the guide wheels are covered by an earth

Crawler travelling apparatus in which a crawler having crawler links is windingly laid over the driving wheel and the take-up wheel, guide wheels are disposed at the frame for guiding the lower travel portion of the crawler, and the lateral outer portions of the guide wheels are covered by an earth and sand protection cover. Further disposed at the frame is an auxiliary cover so as to form an earth and sand discharging opening together with the first-mentioned cover.

대표청구항 ▼

A crawler travelling apparatus comprising: a take-up wheel (3) and a drive wheel (2) disposed forwardly and rearwardly of a frame (1) respectively, a crawler (4) entrained about said two wheels (2) (3) and having a series of crawler links (4a) upstanding on an inner surface thereof, said two wheels

A crawler travelling apparatus comprising: a take-up wheel (3) and a drive wheel (2) disposed forwardly and rearwardly of a frame (1) respectively, a crawler (4) entrained about said two wheels (2) (3) and having a series of crawler links (4a) upstanding on an inner surface thereof, said two wheels (2) (3) being located inwardly with respect to said links (4a), guide wheels (5) disposed under said frame (1), adapted to guide a lower portion of said crawler (4), a main earth and sand fending cover (7) having a lower edge adjacent to an upper surface of the lower portion of said crawler (4), wherein: said main cover (7) provides an interval in side view between one end thereof and said drive wheel (2) to form an earth and sand discharge opening (A) with said crawler links (4a) at an inward side thereof, and an auxiliary earth and sand fending cover (8), said auxiliary cover is disposed between said one end of the main cover (7) and said drive wheel (2) and at an inward position with respect to said main cover (7) for covering said interval in side view, whereby earth and sand inadvertently entering said main cover (7) is caused to flow out of said opening (A) outwardly of said auxiliary cover without reaching said drive wheel (2) and said drive wheel (2) is positively protected by said auxiliary cover (8) from intrusion and accumulation of the earth and sand.