Title:
ARM OF WORKING MACHINE, BEARING MEMBER AND MANUFACTURING METHOD OF ARM OF WORKING MACHINE
Document Type and Number:
Japanese Patent JP2019116748
Kind Code:
A
Abstract:
To simplify a manufacturing process of the arm of a working machine having a grease supply part on an arm side face for supplying grease to the bearing member of an arm tip.SOLUTION: The arm of a working machine has a cylindrical arm body and a bearing member attached to a tip of the arm body and pivoting other members, the bearing member has a cylindrical boss, one end attached to a grease supply port provided on an outer peripheral surface of the boss, the other end attached to a side face of the arm body, and a grease supply tube having a tube body part for connecting the one end to the other end. The tube body part is curved to direct the one end part to the radial direction of the boss, and the other end to the direction roughly parallel to the axial direction of the boss. On a side face of the arm body, a cutout part is provided opened to the tip side and allowing insertion of the tube body, the one end and the tube body are housed in the arm body, and the other end of the grease supply tube faces the outside of the arm via the cutout part and is fastened to the arm side face.SELECTED DRAWING: Figure 3
Inventors:
SATO FUMINORI
Application Number:
JP2017250806A
Publication Date:
July 18, 2019
Filing Date:
December 27, 2017
Export Citation:
Assignee:
KUBOTA KK
International Classes:
E02F3/38; E02F9/00
Domestic Patent References:
| JPH11280110A | 1999-10-12 | |||
| JPH0313358U | 1991-02-12 | |||
| JPH09105144A | 1997-04-22 | |||
| JP2000336692A | 2000-12-05 |
Attorney, Agent or Firm:
Mikio Yasuda