Title:
作業機械の油圧配管の継手構造及び作業機械の油圧配管の組付方法
Document Type and Number:
Japanese Patent JP7413965
Kind Code:
B2
Abstract:
To prevent rotation with metal tubes when connecting hydraulic hoses after subassembling multiple metal tubes and assembling them to a work machine.SOLUTION: A hollow joint body 31 through which hydraulic oil passes is fixed to a metal tube 11 in a rotary manner. Hydraulic hoses can be connected to both ends of the plurality of metal tubes 11. A detent portion 32 extending from the joint body 31 in a direction intersecting the longitudinal direction of the metal tube 11 and having a flat contact surface is provided. The detent portion 32 is provided with a fastening member insertion hole 34 for inserting a fastening member 40 to be inserted into another detent portion 32 that abuts against each other on a contact surface 33. In a state where the contact surfaces 33 of the detent portions 32 extending from the joint bodies 31 provided on the plurality of metal tubes 11 are in contact with each other, by inserting the fastening member 40 into the fastening member insertion hole 34, the rotation of the metal tube 11 in the circumferential direction about the longitudinal direction is prevented.SELECTED DRAWING: Figure 3
Inventors:
Katsuya Kurauchi
Application Number:
JP2020164788A
Publication Date:
January 16, 2024
Filing Date:
September 30, 2020
Export Citation:
Assignee:
Kobelco Construction Machinery Co., Ltd.
International Classes:
E02F9/00; E02F3/36
Domestic Patent References:
| JP2010285816A | ||||
| JP201353453A | ||||
| JP5340402A | ||||
| JP2013238074A | ||||
| JP2014152466A | ||||
| JP562475U |
Foreign References:
| US4878696 |
Attorney, Agent or Firm:
Patent Attorney Corporation Maeda Patent Office