Title:
EXCAVATION AND AGITATION DEVICE
Document Type and Number:
Japanese Patent JP2019078154
Kind Code:
A
Abstract:
To provide an excavation blade which can simply replace an excavation claw without replacement of a holder even when wear occurs on the outermost side, and prevents cracks in a step portion with a plate even when a load is applied in an excavation direction on a tip portion of the excavation claw.SOLUTION: A holder 6 is provided on the outermost side of an excavation blade 5 in an excavation and agitation blade, and an opening is directed to the outside. A claw plate 52 of an excavation claw 51 is stored in the opening, and the opening is covered with a lid body 7. The excavation claw 51 constitutes a claw plate 52 and a claw part 53 so that its surface and back surface are symmetrical. The lid body 7 is mounted so as to project to the outside of the holder 6, and the lid body 7 is brought into contact with an excavation hole to prevent wear of the holder 6.SELECTED DRAWING: Figure 5
Inventors:
YAMASHITA TATSUNORI
Application Number:
JP2018075802A
Publication Date:
May 23, 2019
Filing Date:
April 11, 2018
Export Citation:
Assignee:
YAMASHITA KOGYO KK
International Classes:
E02F9/28; E02D3/12; E21B10/62
Domestic Patent References:
| JPS6361490U | 1988-04-23 | |||
| JPH06294269A | 1994-10-21 | |||
| JP2014122495A | 2014-07-03 | |||
| JP2007211527A | 2007-08-23 | |||
| JPS5854194A | 1983-03-31 | |||
| JP2017197909A | 2017-11-02 |
Foreign References:
| US4488608A | 1984-12-18 |
Attorney, Agent or Firm:
Toru Kurume