Patent ID: 9234559
Filing Date: 2016-01-12
CPC Classification: F16F,Y10T

Claim Text:
1. A joined body comprising: a first member having a female portion; a second member having a male portion inserted in the female portion at one end, an annular groove along an outer circumference of the male portion, and a fitted portion continuous from the annular groove in the axial direction of the second member and having a larger diameter than a groove bottom surface portion of the annular groove, the second member being fitted to the first member, wherein a plurality of first recess portions is formed on an outer circumferential surface of a side wall of the female portion, and a plurality of joint portions is formed on an inner circumferential surface of the side wall of the female portion at positions of the first recess portions, and the joint portions are received in the annular groove of the male portion, the plurality of the first recess portions and the plurality of the joint portions being formed at a plurality of positions in a circumferential direction of the female portion, and wherein the female portion includes a plurality of second recess portions formed on the outer circumferential surface of the side wall of the female portion at positions axially different from the first recess portions, and a plurality of pressing portions protruding radially inwardly to engage the fitted portion, the plurality of the second recess portions and the plurality of the pressing portions being formed at a plurality of positions in the circumferential direction of the female portion, wherein the second recess portions are open to the first recess portions, and the pressing portions are formed continuously with the joint portions.