PROBLEM TO BE SOLVED: To improve engagement performance for meshing teeth of a dog clutch at a time of engagement of the dog clutch.SOLUTION: A dog clutch 8 constituted by an input-side dog member 81 and an output-side dog member 82 and an electrically-controlled coupling 16 are provided in a driving force transmission system transmitting a driving force to right and left rear wheels 19 and 20. A plurality of teeth 81b and 82b by which the two dog members 81 and 82 mesh with each other include, in tip end portions 81f and 82f of the respective teeth 81b and 82b, one-sided chamfer shapes including first side surfaces 81c and 82c long in a clutch engagement direction, second side surfaces 81d and 82d short in the clutch engagement direction, and one-sided chamfer surfaces 81e and 82e connecting the first side surfaces 81c and 82c to end faces of the second side surfaces 81d and 82d. The one-sided chamfer shapes are set into shapes such that the input-side first side surface 81c strikes on the output-side first side surface 82c first when the dog clutch 8 is engaged in a state in which a rotating speed of the input-side dog member 81 is faster than a rotating speed of the output-side dog member 82.SELECTED DRAWING: Figure 2

    【課題】噛み合いクラッチを締結するとき、噛み合いクラッチを噛み合わせる入り性能を向上すること。【解決手段】左右後輪19,20への駆動力伝達系に、入力側噛み合い部材81と出力側噛み合い部材82から構成されるドグクラッチ8と電制カップリング16を設け、両噛み合い部材81,82が互いに噛み合う複数の歯81b,82bは、クラッチ締結方向に長い第1側面81c,82cと、クラッチ締結方向に短い第2側面81d,82dと、第1側面81c,82cと第2側面81d,82dの端面を繋ぐ片チャンファ面81e,82eと、を有する片チャンファ形状を各歯81b,82bの先端部81f,82fに備え、片チャンファ形状を、入力側噛み合い部材81の回転速度が出力側噛み合い部材82の回転速度よりも速い状態でドグクラッチ8を締結するとき、入力側の第1側面81cが出力側の第1側面82cに先に突き当たる形状に設定した。【選択図】図2


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    Title :

    DOG CLUTCH OF FOUR-WHEEL-DRIVE VEHICLE


    Additional title:

    4輪駆動車の噛み合いクラッチ


    Contributors:

    Publication date :

    2016-03-17


    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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