U.S. patent number 3,640,348 [Application Number 05/007,614] was granted by the patent office on 1972-02-08 for s-shaped standard.
This patent grant is currently assigned to Kewanee Machinery & Conveyor Company. Invention is credited to George E. Womble.
United States Patent |
3,640,348 |
Womble |
February 8, 1972 |
S-SHAPED STANDARD
Abstract
The use of a resilient standard, or bearing, to support a disc
gang from the main frame, with the standard being made of a
plurality of curved portions or convolutions, preferably of a
reversed "S" shape.
Inventors: |
Womble; George E. (Kewanee,
IL) |
Assignee: |
Kewanee Machinery & Conveyor
Company (Kewanee, IL)
|
Family
ID: |
21727199 |
Appl.
No.: |
05/007,614 |
Filed: |
February 2, 1970 |
Current U.S.
Class: |
172/572;
111/926 |
Current CPC
Class: |
A01B
61/04 (20130101); A01B 21/08 (20130101); Y10S
111/926 (20130101) |
Current International
Class: |
A01B
21/08 (20060101); A01B 21/00 (20060101); A01B
61/04 (20060101); A01B 61/00 (20060101); A01b
005/04 (); A01b 061/04 () |
Field of
Search: |
;172/551,573,574,575,602,604 ;111/85,87,88 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Coughenour; Clyde I.
Claims
What is claimed is:
1. In discing equipment comprising a main frame having a laterally
directed, rigid supporting beam to which the shaft of a gang of
discs positioned below the main frame is connected, a pair of
spaced S-shaped standards each comprising a spring tempered member
having an upper convolution integrally united to an oppositely
opening lower convolution, the upper convolution having an upper
end portion rigidly connected to the beam by front and rear
connection members, the lower convolution having a lower end
portion rigidly connected to said gang disc shaft, said rigid
connection of the lower end portion of the lower convolution being
below and rearwardly of the supporting beam considering the
direction in which the discing equipment travels, the shaft and
discs pivoting upwardly and rearwardly about said rigid connection
of the standard to the supporting beam as a center of rotation when
a disc or discs hit an undiscable obstruction so as to avoid
interference between the discs and the rigid supporting beam, and
the lower convolution opening rearwardly in a direction opposite to
the direction of travel of the discing equipment to avoid
collection of trash during use of the equipment.
2. In discing equipment, the improvement according to claim 1
wherein at least the rear connection member of the connection
members which connect the upper end portion of the S-shaped
standards to the beam comprises a U-bolt, the bight of which
straddles said upper end portion.
3. In discing equipment, the improvement according to claim 2
wherein the lower end portion of the lower convolution of the
S-shaped standards is rigidly connected to the gang disc shaft by a
U-bolt which straddles said shaft.
Description
BACKGROUND OF THE INVENTION
Heretofore disc gangs have been supported from the main frame in
such a manner than when an obstruction like a rock or tree stump is
hit by one or more of the discs it tends to lift the entire frame
out of the desired plane for discing. Even if the standards, or
hangers, have been made resilient, such prior standards, or
hangers, have required a rather high silhouette in order that the
rising discs not interfere with or strike the main frame. Prior
standards or hangers also have the disadvantage of extending
rearwardly a considerable distance in order to get the needed
resilient action and this limits the number of disc gangs which can
be located one behind the other in discing equipment.
It is one object of the present invention to overcome the
defficiencies above listed and others of the prior art. The present
invention is directed to a resilient standard comprising a
plurality of resilient convolutions or curved portions.
In its preferred form the standard, or hanger, of this invention,
is generally S-shaped in configuration and is rigidly connected
between a rigid frame member and the shaft on which the discs are
mounted. It is an object of this invention to so mount the S-shaped
standard that it will not tend to collect trash during use of the
discing equipment. To that end the lower curved portion of the
S-shaped standard is open rearwardly, that is, is open in the
direction opposite to the direction of travel of the discing
equipment.
It is a further object to so construct and mount the S-shaped
standard that when one or more discs meets an obstruction such as a
buried rock or stump, the shafts on which the discs are mounted
will pivot upwardly and outwardly so as not to dig deeper into the
ground where the obstruction is located.
It is a further object to so construct and mount the S-shaped
standard that a plurality of shafts bearing discs, that is, disc
gangs may be mounted one behind the other without interferring with
each other and without unduly lengthening the discing
equipment.
Other objects and advantages of the invention will become apparent
or be obvious from the following description when taken with the
drawings in which,
FIG. 1 fragmentarily shows the discing equipment generally;
FIG. 2 is an enlarged, elevational view taken approximately on line
2--2 of FIG. 1;
FIG. 3 is a sectional view taken approximately on line 3--3 of FIG.
2.
Referring now to the drawings, the discing equipment is indicated
generally by the reference numeral 10. The discing equipment
comprises a main frame 11 with which are rotatably connected
transport wheels 12 (only one pair being shown) which are used to
transport the discing equipment and are of a known type.
Associated with the main frame 11 is a rigid frame member, or beam,
indicated generally by the reference numeral 13. The rigid frame
member 13 is associated with the main frame 11 by having its
midportion guided or pivoted by a strap 14 connected with the main
frame 11 approximately at the end section of the sidewall portion
17 and the end portion 18 of the main frame 11. The innermost end
of the rigid frame member or beam 13 is guided in a strap 19
relative to the central portion 15 of the main frame 11. Although
there is illustrated only one rigid frame member or beam 13 a
second similar one is frequently used and the two may be connected
by their inner ends for concurrent adjustment relative to the main
frame 11, but this forms no part of the present invention.
The disc gang, indicated generally by the reference numeral 20
comprises a plurality of discs, such as the discs 22, which are
supported on a shaft 24 and maintained in spaced relationship by
spools 26 of a known type. Supporting shaft 24 may be threaded at
its outermost, reduced end to receive a nut 28 and washer 30.
The shaft 24 for the disc gang and the discs 22 lie beneath the
main frame 11. The shaft 24 is connected to the rigid frame member
or beam 13 by two standards, or hangers, which will now be
described.
The shaft 24 of the disc gang is secured to the rigid frame member
or beam 13 by standards or hangers indicated generally by the
reference numeral 32. As shown, the standard 32 comprises a
plurality of convolutions or curved portions of which there are two
shown in the preferred S-shaped standard illustrated in the
drawings. The lower curved portion 34 has its open side directed
rearwardly, that is in a direction opposite from that in which the
discing equipment 10 will move. Hence any tendency to collect trash
in the curved portion 34 will be minimized. Since the upper curved
portion 36 of the standard 32 is higher than the portion 34, its
open side will not tend to collect trash. The upper portion 36 has
a flat end portion 36' which may be secured, for example, to the
rigid frame member 13 by a pair of U-bolts 40 and a clamping plate
38, or it may be rigidly secured to the frame member 13 by other
known means, such as the U-bolt 40 and bolt 41 which passes through
the portion 36', for example. The lower portion 34 also has a
forward end which is below and slightly rearwardly of the rigid
frame member 13 so that upward springing of the standard 32 will
not cause an interference between the discs 22 and the rigid frame
member, or beam, 13. The standard 32 may be connected to the shaft
24 by a U-bolt 42 or other known means. Each standard may also
carry a bracket 44 and a pair of brackets 44 may support a member
46 which carries scraper blades 48, one for each disc, if
desired.
The shaft 24 of the disc gang lies below and slightly rearwardly of
the rigid frame member or beam 13. If the standard 32 tends to
pivot about point 50 as a center, when one or more discs 22 hits
and undiscable obstruction, then the shaft and discs will tend to
move along the curved line A of FIG. 3 and there will be no
interference between the discs 22 and the frame member 13 or the
main frame 11 and the discs will not be caused to dig to a greater
depth in the earth.
* * * * *