PROBLEM TO BE SOLVED: To enable a driving device for a front-wheel drive vehicle to be easily changed to a driving device for a four-wheel drive vehicle with an auxiliary transmission, and reduce the size and weight of the driving device.SOLUTION: In the driving device for a four-wheel drive vehicle, a differential device includes an outer differential case 30 where a ring gear 29 to which power is transmitted from an output shaft 23 of a change gear 8 is arranged, and an inner differential case 31 disposed in the outer differential case so as to rotate relatively where a differential gear is arranged inside, a first hollow shaft 39 that can be connected to the outer differential case, a second hollow shaft 40 disposed in the first hollow shaft so as to be connected to the inner differential case, and an intermediate shaft 41 parallel to the first hollow shaft and the second hollow shaft are provided in a transfer case 37. A high speed/low speed switching mechanism 46 is arranged between the first hollow shaft and the intermediate shaft as a sub-change gear 9. An output gear 52 of the sub-change gear for transmitting power to the second hollow shaft and a transfer input gear 54 of a transfer device are provided to the intermediate shaft.

    【課題】前輪駆動車用駆動装置を、副変速機付きの四輪駆動車用駆動装置に容易に変更可能にするとともに、駆動装置の小型軽量化を図る。【解決手段】四輪駆動車用駆動装置において、デファレンシャル装置は、変速機8の出力軸23から動力が伝達されるリングギヤ29が配置されるアウタデフケース30と、アウタデフケース内に相対回転可能に配置されるとともに内部に差動ギヤが配置されるインナデフケース31とを備え、トランスファケース37内には、アウタデフケースに連結可能な第1中空軸39と、インナデフケースに連結可能に第1中空軸内に配置される第2中空軸40と、第1中空軸及び第2中空軸と平行な中間軸41とを備え、副変速機9として第1中空軸と中間軸の間に高速低速切換機構46を配置し、中間軸に第2中空軸へ動力を伝達する副変速機の出力ギヤ52と、トランスファ装置のトランスファ入力ギヤ54とを配置したことを特徴とする。【選択図】図1


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    Title :

    DRIVING DEVICE FOR FOUR-WHEEL DRIVE VEHICLE


    Additional title:

    四輪駆動車用駆動装置


    Contributors:

    Publication date :

    2015-08-24


    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



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