Connecting member of construction machine
AssigneesKabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobelco Construction Machinery Co., Ltd.
InventorsMasayoshi Okumura, Yasuto Kataoka
Life of this patent
Estimating the term…
Abstract
Provided is a boom top comprising first and second support plates and an intermediate support member disposed between the first and second support plates. The intermediate support member has a bottom plate formed with a draw-out hole for a casting mold, and a cover plate covering the draw-out hole. A projection protruding in a draw-out direction of the casting mold is formed on the entire perimeter of an edge facing the draw-out hole, in the bottom plate.
Claims6
A connecting member of a construction machine, which member is cast and connects a boom and an arm, comprising:
- a first support plate having a first shaft hole through which an arm pin is inserted;
- a second support plate disposed parallel to the first support plate and having a second shaft hole through which the arm pin is inserted;
- and
- an intermediate support member being continuous with the first and second support plates and disposed between the first and second support plates, a space being formed inside the intermediate support member,
- wherein the intermediate support member has (i) a bottom plate formed with a draw-out hole for drawing out a casting mold and disposed at a position facing the boom, and (ii) a cover plate being continuous with the bottom plate and disposed at a position facing the arm so as to cover the draw-out hole;
- and
- a projection protruding in a draw-out direction of the casting mold is formed in at least a part of an entire perimeter of an edge facing the draw-out hole, in the bottom plate.
A connecting member of a construction machine, which member is cast and connects a boom and an arm, comprising:
- a first support plate having a first shaft hole through which an arm pin is inserted;
- a second support plate disposed parallel to the first support plate and having a second shaft hole through which the arm pin is inserted;
- and
- an intermediate support member being continuous with the first and second support plates and disposed between the first and second support plates, a space being formed inside the intermediate support member,
- wherein, the intermediate support member has (i) a bottom plate formed with a draw-out hole for drawing out a casting mold and disposed at a position facing the boom, and (ii) a cover plate being continuous with the bottom plate and disposed at a position facing the arm so as to cover the draw-out hole;
- and
- at least a part of an entire perimeter of an edge facing
- the draw-out hole, in the bottom plate, has a thickness greater than a minimum thickness of the cover plate.
Dependencies are inferred from the claim text.