PROBLEM TO BE SOLVED: To restrain movement of a shift lever to a specific gear shift position with simple and compact configuration.SOLUTION: A restraint structure of a gear shift lever for a walking type work machine includes: a guide member 64 in which a guide groove 65 is formed for guiding a shift lever 59 to a plurality of gear shift positions corresponding to the respective gear shift positions of a transmission and a restraint plate 72 the posture of which is freely changeable between a restraint posture for restraining the shift lever 59 from moving to a reverse second speed groove R2 corresponding to high-speed reverse run, and a restraint release posture for permitting the shift lever 59 to move to the reverse second speed groove R2. The restraint plate 72, in the restraint posture, takes a posture to cover the reverse second speed groove R2 and to be along with the groove width direction of the reverse second speed groove R2 in a guide surface view in which the guide groove 65 is formed, and, in the restraint release posture, takes a posture to be along with the groove vertical direction perpendicular to the guide surface at a position away from the reverse second speed groove R2 in the guide surface view.COPYRIGHT: (C)2014,JPO&INPIT【課題】簡素かつコンパクトな構成で、特定変速位置への変速レバーの移動を牽制できるようにする。【解決手段】変速装置の複数段の夫々に対応する複数の変速位置に変速レバー59を案内するガイド溝65が形成された案内部材64と、高速バック走行に対応する後進2速溝R2への変速レバー59の移動を牽制する牽制姿勢と後進2速溝R2への変速レバー59の移動を許容する牽制解除姿勢とに姿勢変更自在な牽制板72とが備えられ、牽制板72は、牽制姿勢では、ガイド溝65が形成されたガイド面視において、後進2速溝R2を覆い後進2速溝R2の溝横幅方向に沿う姿勢となり、牽制解除姿勢では、ガイド面視において、後進2速溝R2から外れた位置でガイド面に直交する溝上下方向に沿う姿勢となる。【選択図】図8
