| 摘要 |
PURPOSE:To aim at simplification in a brake operating mechanism, by operating a traveling brake when both forward and backward clutches are operated to OFF and, when one side of these clutches is operated to OFF, installed such a linkage structure as releasing this traveling brake. CONSTITUTION:Each of mechanical power transmission gear A and B for both forward and backward uses is installed in a power transmission system for a symmetrical pair of travel gears 1L and 1R (affixial letters are omitted hereinafter), and each of clutches 11 and 12 is installed in each of these power transmission gears A and B side by side, while a traveling brake 20 is installed in each of these travel gears 1. And, when a travel control lever 24 is operated to the front side of a neutral position, the forward clutch 11 is operated for input by a hydraulic cylinder 28 and simultaneously the traveling brake 20 is operated to a brake released state via a wire 30, while when the lever 24 is operated to the rear side, the backward clutch 12 is operated to ON by a hydraulic cylinder 29, while there is provided with a brake operating mechanism C which makes the traveling brake come into the brake released state likewise.
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