Lug bar, track shoe, and method for producing lug bar
AssigneeKomatsu Ltd.
InventorsMasayuki OHISHI, Hisao ASADA, Tomoyoshi SHO, Kenichi HISAMATSU
Life of this patent
Estimating the term…
Abstract
The lug bar includes a base, having a bar shape and made of a first metal, and an overlay, extending along the longitudinal direction of the base to cover a covered region as a part of the outer peripheral surface of the base. In an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region of the surface of the base, the exposed region and the surface of the overlay are flush with each other to form a forged surface.
Claims17
1-11. (canceled)
A lug bar to be joined to a grouser portion of a track shoe constituting a track, the lug bar comprising:
- a base having a bar shape and made of a first metal;
- and
- an overlay extending along a longitudinal direction of the base to cover a covered region as a part of an outer peripheral surface of the base;
- in an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region of the surface of the base, the exposed region and a surface of the overlay being flush with each other to form a forged surface.
A method for producing a lug bar to be joined to a grouser portion of a track shoe constituting a track, the method comprising the steps of:
- preparing a base member having a bar shape and made of a first metal;
- forming an overlay to extend along a longitudinal direction of the base member to cover a covered region as a part of a surface of the base member;
- and
- forging the base member having the overlay formed, such that an overlay edge portion corresponding to a boundary between the covered region and an exposed region other than the covered region of the surface of the base member is worked.
Dependencies are inferred from the claim text.