To lightly and easily perform a hand-push operation of a traveling machine body when a propeller shaft for traveling is freely rotated.SOLUTION: An input gear 40 is provided with a locking part 40b for transmission. A shift gear member 43 provided with a to-be-locked part 43a that is engaged with or disengaged from the locking part 40b for transmission is provided. A boss member 32 having a slide engagement part formed on an outer peripheral side thereof is externally fitted and attached to a propeller shaft 3R for traveling, so as to be relatively rotatable. On the propeller shaft 3R for traveling at a position further apart from the input gear 40 than the boss member 32, a slide engagement shaft part 33 is formed which is able to engage with an inner-peripheral slide engagement part 43b of the shift gear member 43. The shift gear member 43 is configured so as to be able to change its location among a differential lock position a1, a differential actuation position a2, and a free rotation position a3 at which the locked part 43a of the shift gear member 43 is disengaged from the locking part 40b for transmission and the inner peripheral slide engagement part 43b is engaged with the slide engagement shaft part 33 at a position apart from a slide engagement part 32a.SELECTED DRAWING: Figure 4

    【課題】走行用推進軸の自由回動状態における走行機体の手押し操作を軽快に行い易くする。【解決手段】入力ギヤ40に伝動用係止部40bを備え、伝動用係止部40bに対して係脱可能な被係止部43aを備えたシフトギヤ部材43を備え、スライド係合部が外周側に形成されたボス部材32が、走行用推進軸3Rに相対回転自在に外嵌装着され、ボス部材32よりも入力ギヤ40から離れた位置の走行用推進軸3Rに、シフトギヤ部材43の内周側スライド係合部43bと係合可能なスライド係合軸部33が形成され、シフトギヤ部材43が、デフロック位置a1と、デフ作動位置a2と、シフトギヤ部材43の被係止部43aが伝動用係止部40bとの係合を解除され、かつ内周側スライド係合部43bがスライド係合部32aから外れた位置でスライド係合軸部33に係合する自由回動位置a3と、にわたって位置変更可能に構成されている。【選択図】図4


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    Title :

    WALKING TYPE WORK MACHINE


    Additional title:

    歩行型作業機


    Contributors:

    Publication date :

    2019-01-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / A01B SOIL WORKING IN AGRICULTURE OR FORESTRY , Bodenbearbeitung in Land- oder Forstwirtschaft / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / F16H Getriebe , GEARING



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