Agricultural implement with boltless tines

Patent metadata

Field	Value
Publication number	US-2018192570-A1
Application number	US-201715402734-A
Country	US
Kind code	A1
Filing date	Jan 10, 2017
Priority date	Jan 10, 2017
Publication date	Jul 12, 2018
Grant date	—

Abstract

An agricultural implement includes: a chassis; a hitch connected to the chassis; and a harrow carried by the chassis. The harrow includes: a tine frame having at least one clamp tab; and at least one tine clamped to the tine frame by the at least one clamp tab, the at least one tine including a clamped portion with a pair of opposite ends and a pair of vertically descending teeth, each of the vertically descending teeth being connected to a respective end of the clamped portion.

First claim

What is claimed is:

1 . An agricultural implement, comprising:
a chassis; a hitch connected to said chassis; and a harrow carried by said chassis, said harrow comprising:
a tine frame having at least one clamp tab; and
at least one tine clamped to said tine frame by said at least one clamp tab, said at least one tine including a clamped portion with a pair of opposite ends and a pair of vertically descending teeth, each of said vertically descending teeth being connected to a respective end of said clamped portion.

2 . The implement according to claim 1 , wherein said tine frame includes two clamp tabs clamping said clamped portion of said at least one tine to said tine frame.

3 . The implement according to claim 2 , wherein said pair of opposite ends of said clamped portion define a clamping width therebetween which is equal to a maximum distance between said two clamp tabs.

4 . The implement according to claim 1 , wherein said at least one clamp tab extends from a first surface of said tine frame and said tine frame includes a second surface angled with respect to said first surface, said at least one clamp tab clamping said clamped portion of said tine against said second surface.

5 . The implement according to claim 4 , wherein said second surface includes a stop extending therefrom.

6 . The implement according to claim 5 , wherein said clamped portion of said at least one tine defines a middle region which is equidistant from said opposite ends, said middle region of said clamped portion abutting against said stop.

7 . The implement according to claim 5 , wherein said stop is formed as a lance tab in said second surface.

8 . The implement according to claim 5 , wherein said clamped portion of said at least one tine defines a height, said at least one clamp tab and said stop defining a resting clearance therebetween which is less than said height of said clamped portion.

9 . The implement according to claim 5 , wherein at least one of said at least one clamp tab and said stop comprises a reversibly deformable material.

10 . The implement according to claim 1 , wherein said at least one clamp tab is formed as a lance tab in said tine frame.

11 . The implement according to claim 1 , wherein said at least one clamp tab supports a bottom of said at least one tine.

12 . The implement according to claim 1 , wherein said at least one clamp tab comprises a plurality of clamp tabs and said at least one tine comprises a plurality of tines, each of said plurality of tines being clamped to said tine frame by at least one of said clamp tabs.

13 . The implement according to claim 12 , wherein said vertically descending teeth of said plurality of tines define an equal tooth spacing between adjacent teeth.

14 . The implement according to claim 12 , wherein said plurality of clamp tabs are identical.

15 . The implement according to claim 12 , wherein said plurality of tines are identical.

16 . An agricultural implement, comprising:
a chassis; a hitch connected to said chassis; and a harrow carried by said chassis, said harrow comprising:
a tine frame having a first surface with at least one clamp tab and a second surface angled with respect to said first surface; and
at least one tine clamped to said first surface and said second surface by said at least one clamp tab, said at least one tine including a clamped portion and at least one vertically descending tooth connected to said clamped portion.

17 . The implement according to claim 16 , wherein said second surface is joined with said first surface.

18 . The implement according to claim 17 , wherein said second surface includes a stop extending therefrom.

19 . The implement according to claim 18 , wherein at least one of said at least one clamp tab and said stop is formed as a lance tab.

20 . The implement according to claim 18 , wherein at least one of said at least one clamp tab and said stop comprises a reversibly deformable material.

Assignees

• Cnh Ind America Llc

Inventors

• Serrurier Douglas C

Classifications

• A01B23/02 Primary

  Teeth; Fixing the teeth · CPC title

• A01B23/043 Primary

  specially adapted for harrows with non-rotating tools · CPC title

• A01B19/02

  with tools rigidly or elastically attached to a tool-frame · CPC title

• A01B49/02

  with two or more soil-working tools of different kind · CPC title