| 摘要 |
PURPOSE:To improve ease of operation of a device employing both a differential lock means and a power transmission/disconnection means by connecting the both means in link motion so that the power transmission/disconnection means is actuated in link motion when the differential lock is engaged or disengaged. CONSTITUTION:In a device where drive power inputted from an engine to an input shaft 26 is transmitted in a specified distribution ratio to both output shafts 29 and 31 respectively for front and rear wheels, a center differential 25 is interposed between the input shaft 26 and a counter shaft 33. This differential 25 is provided with a differential lock means for making a differential lock piece 43 fitted on the counter shaft 33 with splines engage/disengage with a carrier 37 by means of a dog clutch mechanism. A power transmission/disconnection means for making an engagement piece 48 spline-fitted on the output shaft 29 for the front wheel engage/disengage with a driven gear 47 for the front wheel by means of a dog clutch mechanism is also provided. the engagement pieces 43 and 48 are actuated in link motion by means of a changeover operation device (drawing omitted) including a column body having cam grooves for engagement with end parts of shift forks of the respective engagement pieces 43 and 48.
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