To provide a friction engagement device which can secure the favorable discharge performance of oil while sufficiently securing the rigidity of a cylindrical portion, and a vehicle drive unit with the same.SOLUTION: A plurality of recesses 7A recessed to a radial outside, and a plurality of protrusions 7B protruding to a radial inside are formed at an inner circumferential surface of a cylindrical portion 61, the recesses 7A and the protrusions 7B are alternately arranged in a peripheral direction C of the cylindrical portion 61, a first hole portion 8a and a second hole portion 8b are formed at least at either of the plurality of recesses 7A and the plurality of protrusions 7B, the first hole portion 8a is formed into a long hole shape progressing along a first inclination direction I1 in a view in a radial direction, the second hole portion 8b is formed into a long hole shape progressing along a second inclination direction I2 in the view in the radial direction, an arrangement region AC1 of the first hole portion 8a in the peripheral direction C and an arrangement region AC2 of the second hole portion 8b in the peripheral direction C are superimposed on each other, and an arrangement region AL1 of the first hole portion 8a in an axial direction L and an arrangement region AL2 of the second hole portion 8b in the axial direction L contact with each other, or are superimposed on each other.SELECTED DRAWING: Figure 5

    【課題】筒状部の強度を十分に確保しつつ、良好な油の排出性能を確保できる摩擦係合装置、及びそれを備えた車両用駆動装置を提供する。【解決手段】筒状部61の内周面に、径方向外側に窪む複数の凹部7Aと、径方向内側に突出する複数の凸部7Bと、が形成され、凹部7Aと凸部7Bとが、筒状部61の周方向Cに交互に配置され、複数の凹部7A及び複数の凸部7Bの少なくとも一方に、第1孔部8a及び第2孔部8bが形成され、第1孔部8aは、径方向視で第1傾斜方向I1に沿う長孔状に形成され、第2孔部8bは、径方向視で第2傾斜方向I2に沿う長孔状に形成され、第1孔部8aの周方向Cの配置領域AC1と、第2孔部8bの周方向Cの配置領域AC2とが互いに重なり、第1孔部8aの軸方向Lの配置領域AL1と、第2孔部8bの軸方向Lの配置領域AL2とが互いに接している又は重なっている。【選択図】図5


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    Title :

    FRICTION ENGAGEMENT DEVICE, AND VEHICLE DRIVE DEVICE WITH THE SAME


    Additional title:

    摩擦係合装置、及びそれを備えた車両用駆動装置


    Contributors:

    Publication date :

    2021-09-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / 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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