Title:
BOOM OF WORK MACHINE
Document Type and Number:
Japanese Patent JP2015063842
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make a hydraulic hose smoothly movable along a part configuring a hose introduction hole during vertical fluctuation of a boom when the hydraulic hose is disposing in the interior of the boom.SOLUTION: A shank 34 includes: side walls 60 to which left and right legs 33 are connected respectively; an upper wall 61U connecting between the upper parts of the left and right side walls 60; and a lower wall 61D connecting between the lower parts of the left and right side walls 60. A part surrounded by the left and right side walls 60, the upper wall 61U, and the lower wall 61D is a hose introduction hole 47. An enlarged opening 80 gradually shifting upward from a tip side toward a biforked side is formed in an inner surface of the upper wall 61U of the shank 34. A swollen part 81 shifting upward from the tip side toward the biforked side in accordance with the inner surface of the upper wall and a skirt part 82 gradually shifting downward from left and right central sides of the biforked side toward top faces of the left and right legs 33 are formed in an outer face of the upper wall 61U of the shank 34.
Inventors:
KUSAMA KENZO
Application Number:
JP2013198428A
Publication Date:
April 09, 2015
Filing Date:
September 25, 2013
Export Citation:
Assignee:
KUBOTA KK
International Classes:
E02F3/38
Domestic Patent References:
| JP2004176312A | 2004-06-24 | |||
| JP2004116008A | 2004-04-15 | |||
| JP2003328391A | 2003-11-19 |
Attorney, Agent or Firm:
Toshio Yasuda
Mikio Yasuda
Mikio Yasuda