Information
-
Patent Grant
-
6575050
-
Patent Number
6,575,050
-
Date Filed
Tuesday, November 7, 200024 years ago
-
Date Issued
Tuesday, June 10, 200321 years ago
-
CPC
-
US Classifications
Field of Search
US
- 074 471 XY
- 074 49014
- 074 491
- 137 636
- 137 6362
-
International Classifications
-
Abstract
A control device for a backhoe that moves four separate reversible hydraulic valves in any combination or all at the same time with only one human hand needed to manipulate said controls. These valves are controlled through an organized series of arms, levers, and push rods. Lever one 1 can pivot forward or backward, move up or down, push forward or pull backward, and move to the left or right. Lever two 2 pivots up or down at lever four 4, therefore lever one 1 moves with lever two 2 as a unit. Lever four 4 spins around lever three 3 with lever two 2 and lever one 1 as a unit. Lever three 3 pivots forward and backward taking lever four 4, lever two 2, and lever one 1 with it as a unit. Lever one 1 pivots forward or backward to actuate valve 20 through a number of pins, rods, and arms. As lever one 1 is moved up or down, it pivots lever two 2 causing valve 22 to be actuated, leaving valve 20 uninterrupted. As lever one 1 is pushed forward or backward it does cause lever four 4 to pivot forward or backward actuating valve 24, however, this does not cause lever two 2 to move up or down or lever one 1 to pivot forward or backward therefore keeping their respective valves from inadvertently actuating. As lever one 1 is moved to the left or right it spins lever two 2 and lever four 4 around lever three 3 causing bent arm 12 to actuate valve 26 without affecting the other valves.
Description
CROSS-REFERENCE TO RELATED APPLICATION
Not applicable.
BACKGROUND-FIELD OF INVENTION
This invention relates to backhoes, specifically to an improved mechanism for controlling backhoes.
BACKGROUND-DESCRIPTION OF PRIOR ART
Originally a backhoe was controlled with four sticks, each stick moving forward or backward controlling only one valve. The movement of the sticks did not always correspond to the movements of the arm.
The prior art's swing control stick moves forward or backward in a counterintuitive manner since the actual boom assembly swings left or right. The prior art's main boom control stick moves forward or backward in a counterintuitive manner since the actual boom pivots up or down. The prior art's crowd boom control stick moves forward or backward as the actual crowd boom does indeed move forward or backward. Pushing or pulling the bucket control stick does make the bucket curl or uncurl.
With all of this in mind, it should be obvious to anyone that these controls make it difficult to maintain a useful speed, since in a normal digging operation it usually requires over 90 valve movements per minute.
A second-generation control incorporated a foot pedal for the swing control valve and kept three separate sticks for the other control valves. The said foot pedal improved matters greatly with the left foot intuitively swinging the boom assembly to the left and the right foot intuitively swinging the boom assembly to the right. The second-generation's main boom control stick still moves forward or backward in a counterintuitive manner from the actual boom that pivots up or down. The second-generation controls were still difficult to use and took an inordinate amount of time to master.
A third-generation control uses two sticks in which each stick moves to the left or right controlling one valve and forward or backward controlling a second valve. This was a wonderful improvement, however; moving the right stick to the left or right is not intuitive when filling or emptying a bucket curling towards or away from you. Pushing or pulling a stick does not easily relate to a boom going up or down. My invention addresses these problems by letting an operator's single hand, moving up or down, left or right and rolling forward or backward control the entire boom assembly.
SUMMARY
In accordance with the present invention a devise that controls a backhoe in which a single control stick moves in four distinct reversible directions and said backhoe mimics the four said movements.
Objects and Advantages
Accordingly, besides the objects and advantages of the single control stick described in my patent above several objects and advantages of the present invention are:
(a) to provide a product that will pay for itself.
(b) to provide a product safer to operate than prior art for beginners and experts alike.
(c) to provide a product that works in a more time efficient manner.
(d) to provide a product much easier to use than prior art.
(e) to provide a product that is easy to produce.
(f) to provide a product that will hold up to the workload placed upon it.
(g) to provide a product easily repairable.
(h) to provide a product no-one else offers.
(i) to provide a product to take the frustration out of operating a backhoe and making it an enjoyable experience.
(j) to provide a product as close to
100
% reliable as mechanically possible.
(k) to provide a product that substantially reduces fuel consumption, air pollution, and noise pollution.
(l) to provide a product that is desirable and most people can afford.
(m) to provide a product that looks mechanically sound, as it actually is.
(n) to provide a product with superior quality.
(o) to provide a product that makes the user happy.
(p) to provide a product that is compatible with all existing backhoe models.
(q) to provide a product that fits into many distribution channels currently established.
(r) to provide a product that needs little or no service.
Further objectives and advantages of my invention will become apparent from a consideration of the drawings and ensuing description.
DRAWING FIGURES
FIG. 1
is a complete perspective view of my invention in detail.
REFERENCE NUMERALS IN DRAWINGS
1
LEVER ONE held by fulcrum
29
that is mounted in lever two
2
to hold pivot pin
30
2
LEVER TWO held by fulcrum
34
that is mounted in lever four
4
to hold pivot pin
32
and fulcrum
29
3
LEVER THREE to hold parts,
4
,
5
,
6
,
10
and
11
it is held by fulcrum
7
mounted in pillow block
13
4
LEVER FOUR that is supported by and spins around lever three
3
contained by expansion pins
10
and
11
to hold fulcrum
34
and bent extension arm
12
5
EXTENSION ARM welded to lever three
3
to hold pivot pin
36
6
EXTENSION ARM welded to lever three
3
to hold pin
38
7
FULCRUM connecting lever three
3
and pillow block
13
said pivot pin is mounted in lever three
3
8
PIVOT PIN connecting bent aim
28
and pillow block
14
pivot pin is mounted in bent arm
28
9
BASE PLATE to hold pillow blocks
13
and
14
10
EXPANSION PIN held by lever three
3
to contain lever four
4
11
EXPANSION PIN held by lever three bar
3
to contain lever four
4
12
BENT EXTENSION ARM welded to lever four
4
to hold ball joint
39
13
PILLOW BLOCK to hold fulcrum
7
14
PILLOW BLOCK to hold pivot pin
8
15
PUSH ROD held between pivot pins
30
and
31
16
BENT ARM held by pivot pin
32
to hold pivot pins
31
and
33
17
PUSH ROD held between pivot pins
33
and
35
18
ARM held by pivot pin
36
to hold pivot pins
35
and
37
19
PUSH ROD held between pivot pin
37
and existing bucket valve assembly
20
20
EXISTING BUCKET VALVE ASSEMBLY (this is one of the existing valves the invention directly controls)
21
PUSH ROD held between pivot pins
32
and main boom valve assembly
22
22
EXISTING MAIN BOOM VALVE ASSEMBLY (this is one of the existing valves the invention directly controls)
23
PUSH ROD held between pivot pins
38
and existing crowd valve assembly
24
24
EXISTING CROWD BOOM VALVE ASSEMBLY (this is one of the existing valves the invention directly controls)
25
PUSH ROD held between pivot pin
41
and existing swing valve assembly
26
26
EXISTING SWING VALVE ASSEMBLY (this is one of the existing valves the invention directly controls)
27
PUSH ROD held between ball joints
39
and
40
28
BENT ARM held by pivot pin
8
to hold ball joint
40
and pivot pin
41
29
FULCRUM connecting lever two
2
to lever one
1
pivot pin is mounted in lever two
2
30
PIVOT PIN connecting lever one
1
to push rod
15
pivot pin is mounted in lever one
1
31
PIVOT PIN connecting push rod
15
to bent arm
16
pin is mounted in bent arm
16
32
PIVOT PIN connecting lever two
2
, bent arm
16
and pushrod
21
pin is mounted in lever two
2
33
PIVOT PIN connecting bent arm
16
to push rod
17
pin is mounted in bent arm
16
34
FULCRUM connecting lever four
4
to lever two
2
pin is mounted in lever four
4
said pin does not touch lever three
3
35
PIVOT PIN connecting push rod
17
to arm
18
pin is mounted in arm
18
36
PIVOT PIN connecting extension arm
5
to arm
18
pin is mounted in extension arm
5
37
PIVOT PIN connecting arm
18
to push rod
19
pin is mounted in arm
18
38
PIVOT PIN connecting extension arm
6
to push rod
23
pin is mounted in extension arm
6
39
BALL JOINT connecting bent extension arm
12
to push rod
27
40
BALL JOINT connecting push rod
27
to bent arm
28
41
PIVOT PIN connecting bent arm
28
to push rod
25
pin is mounted in bent arm
28
DESCRIPTION AND OPERATION OF INVENTION
FIG. 1
shows a perspective view of a basic version of my invention. There is a main base plate
9
screwed to a frame of a backhoe. The invention incorporates a multitude of levers, pins, fulcrums, rods, and handles on levers. These pieces join together to form an organized method of controlling four separate reversible existing hydraulic valve assemblies in any combination or all at the same time with only one human hand needed manipulate said device. Lever one
1
can be manipulated by a human hand in four different reversible motions. The motions that can be achieved are first pivoting forward or backward, second moving up or down, third pushing forward or pulling backward, and fourth, moving to the left or right The description of said invention starts in the upper left hand corner with said lever one
1
. This said lever one
1
has five logical paths leading to it and a number of subsets of parts acting together to actuate a group of four existing control valve assemblies. One of the paths holds lever one
1
up. The other four paths lead to four different existing control valve assemblies. Each path contains a number of parts that act as a unit. They are as follows:
A lever two
2
pivots up or down at a lever four
4
, therefore lever one
1
moves with lever two
2
as a unit. Lever four
4
spins around a lever three
3
with lever two
2
and lever one
1
as a unit. Lever three
3
pivots forward or backward taking Lever four
4
, lever two
2
, and lever one
1
with it as a unit. Lever one
1
pivots forward or backward to actuate valve
20
through a number of pins, rods, and arms. As lever one
1
is moved up or down, it pivots lever two
2
causing valve
22
to be actuated, leaving existing valve assembly
20
uninterrupted. As lever one
1
is pushed forward or backward it does cause lever four
4
to pivot forward or backward actuating valve
24
; however, this does not cause lever two
2
to move up or down or lever one
1
to pivot forward or backward therefore keeping their respective valves from inadvertently actuating. As lever one
1
is moved to the left or right it spins lever two
2
and lever four
4
around lever three
3
causing a bent extension arm
12
to actuate valve
26
without affecting the other existing valve assemblies.
The first path is the path that holds the handle in place and the next four paths each transfer one of the said motions from lever one
1
to the respective existing control valve assemblies.
Lever one
1
is supported by lever two
2
. Lever two
2
is supported by lever four
4
. Lever four
4
is supported by lever three
3
. Lever three
3
is supported by a pillow block
13
. Pillow block
13
attaches directly to the base plate
9
.
The second path to explain would be the control path to the existing bucket control valve assembly
20
. It starts with said lever one
1
, which pivots forward or backward on pivot pin
29
relative to lever two
2
, controlling a pivot pin
30
. Pivot pin
30
in turn controls a push rod
15
that rotates a bent arm
16
. Bent arm
16
controls a push rod
17
in turn rotates an arm
18
. Arm
18
controls a push rod
19
that actuates existing bucket valve assembly
20
.
The third path to explain would be the control path to existing main boom control valve assembly
22
. It starts with said lever one
1
that will move up or down pivoting causing lever two
2
to pivot on a pivot pin
34
. Lever two
2
moves a pivot pin
32
up or down controlling push rod
21
which actuates existing main boom valve assembly
22
.
The fourth path to explain would be the control path to existing crowd boom control valve assembly
24
. It starts with the lever one
1
that can move forward or backward causing lever two
2
to pivot lever four
4
around a pivot pin
7
. Lever four
4
takes lever three
3
with it so that lever three
3
rotates around pivot pin
7
as lever three
3
takes arm
6
and pivot pin
38
up or down around pivot pin
7
. Arm
6
controls a pushrod
23
. Which actuates the existing crowd boom valve assembly.
The fifth path to follow would be the control path to the existing swing control valve assembly
26
. It starts with lever one
1
that can move to the left or to the right causing lever two
2
and lever four
4
to spin around lever three
3
. When lever four
4
spins it also rotates bent extension arm
12
forward or backward causing a pushrod
27
to go with bent extension arm
12
. Push rod
27
causes a bent arm
28
to rotate around pivot pin
8
. Bent arm
28
causes push rod
25
to move up or down in turn actuating the existing swing control valve assembly
26
.
CONCLUSIONS, RAMIFICATIONS, AND SCOPE
Accordingly, the reader will see that an inexperienced operator will become familiar, therefore, productive with these controls in a very short period of time. A new operator will have instinctive reactions when controlling a backhoe instead of spending six months to learn appropriate reactions as with the prior art. This invention permits the operation of a backhoe with one hand, leaving the other hand free. It permits the operator to use both hands, if desired.
Although the description above contains many specifics, these should not be construed as limiting the scope of this invention but merely as providing an illustration of one embodiment. Many other variations are possible.
Thus, the scope of this invention should be determined by the appended claims and their legal equivalents rather than the examples given.
SEQUENCE LISTING
Not applicable.
Claims
- 1. A control device for a machine comprising:a series of four levers with a means for a single human hand to adjust the position of four separate hydraulic valves independently and in any combination, all at the same time, werein said first lever's fulcurm is mounted on said secound lever's handle enabling said first lever's fulcurm to operate said secound lever.
- 2. The control device, as set forth in claim 1, wherein said second lever's fulcrum is mounted on said third lever's handle so that said first lever's fulcrum can operate said third lever by pushing said second lever to and fro with said first lever's fulcrum all on the same plane.
- 3. The control device, as set forth in claim 2, wherein said first lever's fulcrum can also use said second lever in a second plate to torque said third lever, which acts as a said fourth lever on said third plane.
- 4. The control device, as set forth in claim 3, wherein said third lever's fulcrum is attached to a base plate and said fourth lever's fulcrum is said third lever's cross-section.
- 5. The control device, as set forth in claim 4, wherein each of the said four levers controls a separate hydraulic valve.
- 6. The control device, as set forth in claim 5, wherein said single human hand holding said first lever can adjust the position of all four said hydraulic valves independently and in any combination, all at the same time.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5112184 |
Tapper et al. |
May 1992 |
A |
5316435 |
Mozingo |
May 1994 |
A |