Shovel handle with bail over dipper feature

Patent metadata

Field	Value
Publication number	US-2017350089-A1
Application number	US-201715612492-A
Country	US
Kind code	A1
Filing date	Jun 2, 2017
Priority date	Jun 3, 2016
Publication date	Dec 7, 2017
Grant date	—

Abstract

A mining machine includes a frame, a boom coupled to the frame, a handle coupled to the frame and a dipper coupled to the handle. The handle includes an extension, and a bail is coupled directly to the extension, such that the bail is isolated from the dipper.

First claim

1 . A mining machine comprising:
a frame; a boom coupled to the frame; a handle coupled to the frame; and a dipper coupled to the handle; wherein the handle includes an extension, and wherein a bail is coupled directly to the extension, such that the bail is isolated from the dipper.

2 . The mining machine of claim 1 , wherein the dipper includes teeth and an opening adjacent the teeth to receive material, wherein the extension extends over a portion of the opening.

3 . The mining machine of claim 1 , wherein the extension includes a first arm and a second arm, wherein both the first arm and the second arm are pivotally coupled to the bail.

4 . The mining machine of claim 3 , wherein the bail is disposed between the first arm and the second arm.

5 . The mining machine of claim 3 , wherein the first arm and the second arm extend parallel to one another.

6 . The mining machine of claim 3 , wherein the first arm and the second arm both have a curved profile.

7 . The mining machine of claim 3 , wherein the handle includes a torsion tube, and wherein the first arm and the second arm each extend directly from the torsion tube.

8 . The mining machine of claim 1 , wherein the mining machine includes a tilt mechanism coupled to both the handle and the dipper.

9 . The mining machine of claim 8 , wherein when the tilt mechanism is activated in a first direction, the tilt mechanism is configured to extend the dipper about a pivot point such that teeth of the dipper rise.

10 . The mining machine of claim 9 , wherein when the tilt mechanism is activated in a second direction, the title mechanism is configured to retract to tilt the dipper about the pivot point such that the teeth of the dipper lower.

11 . The mining machine of claim 1 , wherein the handle has a non-linear profile.

12 . The mining machine of claim 1 , wherein a sheave is coupled to an end of the boom, wherein an equalizer is coupled to the bail, and wherein a hoist rope is coupled to the equalizer and to the sheave.

13 . The mining machine of claim 1 , wherein the dipper is rigidly fixed to the handle.

14 . The mining machine of claim 1 , wherein the mining machine is an electric shovel.

15 . A mining machine comprising:
a frame; a boom coupled to the frame; a sheave coupled to an end of the boom; a handle coupled to the frame; and a dipper rigidly coupled to the handle; wherein the handle has a non-linear profile and includes an extension, wherein a bail is coupled directly to the extension such that the bail is isolated from the dipper, wherein an equalizer is coupled to the bail, and wherein a hoist rope is coupled to the equalizer and to the sheave.

16 . The mining machine of claim 15 , wherein the dipper includes teeth and an opening adjacent the teeth to receive material, wherein the extension extends over a portion of the opening.

17 . The mining machine of claim 15 , wherein the extension includes a first arm and a second arm, wherein both the first arm and the second arm are pivotally coupled to the bail.

18 . The mining machine of claim 17 , wherein the bail is disposed between the first arm and the second arm.

19 . The mining machine of claim 17 , wherein the first arm and the second arm extend parallel to one another.

20 . The mining machine of claim 17 , wherein the handle includes a torsion tube, and wherein the extension extends directly from the torsion tube.

Assignees

• Harnischfeger Tech Inc

Inventors

• Hren William J
• Pedretti Ethan J

Classifications

• E02F3/60

  Buckets, scrapers, or other digging elements · CPC title

• E02F3/38

  Cantilever beams {, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms (for booms with cable suspension arrangements E02F9/14 takes precedence)}; Dipper-arms {, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms}; Bucket-arms {(E02F3/34 takes precedence)} · CPC title

• E02F9/14

  Booms {only for booms with cable suspension arrangements (for booms or manipulators with cable suspensions for suction pipes E02F3/905 takes precedence; for booms per se E02F3/38; E02F3/34 for bucket-arms)}; Cable suspensions · CPC title

• E02F3/308 Primary

  working outwardly · CPC title

• E02F3/54

  Cable scrapers {(E02F3/48, E02F3/52 take precedence)} · CPC title