| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a bearing device without causing abrasion or damage in a connection pin and a fixed side bracket due to micro-rotation displacement between the connection pin and the fixed side bracket, or abrasion due to penetration of sand or soil. <P>SOLUTION: The connection pin 30 is inserted over an oscillation side bracket 10 and the fixed side bracket 20, and the connection pin 30 is fixed to the fixed side bracket 20 in this bearing device. At a part of the connection pin 30 facing a pin insertion hole 25 in the fixed side bracket 20, a knurling groove 40 is formed for anti-slipping effect, so that the connection pin 30 rolls to the pin insertion hole 25 while making micro-rotation displacement. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
