To make compatible both the improvement of fuel economy by efficiently supplying a lubricant to a brake device of a transmission, and the maintenance of the durability of friction plates.SOLUTION: Rotation-side friction plates 101a ... 101a of a brake device BR2 of a transmission are spline-engaged with a cylinder part 111 of a rotation-side holding member 110, fixed-side friction plates 101b ... 101b are engaged with a spline part 121e arranged at an external peripheral face of an inside cylinder part 121a of a fixed-side holding member 121 which opposes the cylinder part 111 of the rotation-side holding member 110, the fixed-side holding member 121 has a flow-in oil passage Z for supplying a lubricant to the inside from the outside of a radial direction of the fixed-side holding member, an annular space P communicating with the flow-in oil passage Z is formed at the inside of the cylinder part 121a of the fixed-side holding member 121, and discharge oil holes 121f ... 121f for supplying the lubricant flowing into the annular space P to the friction plates 101a, 101b are formed at the cylinder part 121a of the fixed-side holding member 121.SELECTED DRAWING: Figure 3
【課題】変速機のブレーキ装置への潤滑油の供給をより効率よく実施することで、燃費の向上と、摩擦板の耐久性維持と、を両立させる。【解決手段】変速機のブレーキ装置BR2は、の回転側摩擦板101a…101aは、回転側保持部材110の円筒部111にスプライン係合され、固定側摩擦板101b…101bは、前記回転側保持部材110の円筒部111に対向する固定側保持部材121の内側円筒部121aの外周面に設けられたスプライン部121eに係合され、固定側保持部材121はその径方向の外側から内側へ潤滑油を供給する流入油路Zを有し、前記固定側保持部材121の円筒部121aの内側には、前記流入油路Zと連通する環状空間Pが設けられ、前記固定側保持部材121の円筒部121aには、前記環状空間Pに流入した前記潤滑油を前記摩擦板101a、101bに供給する吐出油孔121f…121fが設けられている。【選択図】図3
BRAKE DEVICE OF TRANSMISSION
変速機のブレーキ装置
13.12.2018
Patent
Elektronische Ressource
Japanisch