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Патент USA US3082900

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March 26, 1963
> A. J. VAN AUWELAER ETAL
3,082,890
EARTH MOVING IMPLEMENT
Filed July 25, 1960
3 Sheets-Sheet 1
4
35
INVENTORS
l© A.J.VAN AUWELAER
a D.C.AGER
AT TOR NEY
March 26, 1963
A. J. VAN AUWELAER ETAL
3,082,890
EARTH MOVING IMPLEMENT
Filed July 25, 1960
3 Sheets-Sheet 2
7
A.J.
BY
INVEN TORS
AUWELAER
41C
ATTO RNEY
March 26, 1963
A. J. VAN 'AUWELAER ETAL
3,082,890
EARTH MOVING IMPLEMENT
Filed July 25, 1960
3 Sheets-Sheet 5
INVENTO
¢
9:
A.J. VAN AUWEL
DC. AGER
\
BYW'M
LL.
AT TOR NEY
a
United States Patent 0’
ice
3,082,890
Patented Mar. 26, 1953
2
1
surface of the shield and not against the underside of
3,082,890
EARTH MGVING
the swing structure or the underside of the supporting
LEMENT
Albert J. Van Auwelaer, East Moline, 111., and Douglas C.
Ager, Muscatine, Iowa, assignors to Deere & Company,
Moline, 111., a corporation of Delaware
Filed .‘iuiy 25, 1960, Ser. No. 45,1tl4
17 Ciairns. (Q1. Mfr-13$)
This invention relates to a tractor~backhoe assembly
and more particularly to an improvement for the backhoe
which comprises basically a guard and support for the
hydraulic hoses extending between the hydraulic system
frame.
-
Other objects and advantages of the present invention
will become apparent to those skilled in the art as the
nature of the invention is better understood from the
following disclosure and as illustrated in the accompany
ing drawings.
FIG. 1 is a side and rear perspective view of the back
hoe and tractor assembly which incorporates the features
of the present invention.
FIG. 2 is an enlarged side and rear perspective view
of the backhoe swing cylinder and a portion of the boom
showing the clamping mechanism prior to its connection
on the backhoe.
It is conventional in the backhoe type of implement to 15 to the vsupporting structure.
' FIG. 3 is a side and rear perspective view looking
provide a transverse supporting frame attached to the
or‘ the tractor and the hydraulically operated mechanisms
rear end of the tractor.
The supporting frame has re
slightly upwardly into the lower portion of the swing
tractable legs which may be lowered to ground engage
cylinder and showing the clamping mechanism and a por
ment when the backhoe is being operated and which may
tion of the guard structure mounted on the underside of
be raised for purposes of transporting the backhoe. It 20 the supporting frame.
is also conventional to provide as part of the backhoe a
hydraulically operated swing structure carried on the sup
FIG. 4 is a view somewhat similar to FIG. 3 but show
ing the entire guard structure in its operating position.
porting stand. The backhoe boom is carried on the swing
FIG. 5 is a vertical transverse sectional view of a lower
structure so that the boom may be swivelled from side
portion of the swing cylinder and shield structure.
to side as Well as vertically. Mounted on the outer end 25
Referring now to the drawings, the tractor is of con
of the boom is earth digging equipment, normally in the
form of a dipper stick having a bucket at its outer end,
all of which is pivoted to the end of the boom. The
earth-moving equipment at the end of the boom is also
ventional type having’ an elongated body \10 carried at its
forward end by ‘transversely spaced front wheels, one
being shown at 11, and at its rear end by transversely
spaced traction wheels 12, 13. The tractor has incorpo
operated hydraulically and consequently there is provi-'
sion for carrying or supporting hydraulic hoses extending
rated therein a hydraulic system, not shown, but of the
usual and conventional type. Supported from the rear
from the hydraulic system of the tractor to the hydrauli
end of the tractor is a transverse upright supporting stand
cally operated swing structure as well as the hydraulic
I1'5 having retractable legs, one of which is shown on the
units on the earth-digging equipment. The hydraulic
right end at ‘16, on opposite ends. As may be ‘seen from
hoses extending from the tractor to the backhoe must pass 35 viewing FIG. 1, the supporting legs may be raised to permit
over, under, or through the supporting stand. Also, since
transporting of the backhoe and may be lowered for sup
the various parts of the backhoe are movable relative to
porting the backhoe when the backhoe is in operation.
the stand, there must be su?icient hose to permit the
’ A pair of vertically spaced and rearwardly facing tracks
full extension of the hydraulic systems. Consequently,
17, 18 are provided on the supporting stand 15. Slidably
the hydraulic hoses can become fairly bulky ‘and may be
carried on the transverse track 17, 18 is a rearwardly
come a hindrance relative to the proper operation of the
backhoe structure.
It is therefore the primary object of the present inven
tion to incorporate in a conventional type of tractor-back
hoe assembly a new and novel arrangement of structure
which will support the various hoses on the supporting
stand and will also permit a degree of articulation of the
hoses as the various parts of the backhoe are operated.
Speci?cally, it is ‘an object of the present invention to
projecting backhoe support 19. The backhoe support 19
has upper and lower rearwardly projecting portions 20,
211 respectively. The portions 20, 21 are provided with
suitable liners at 22, 23 which carry for nonrotation rela
tive to the frame ,an upright column, not shown. The
lower liner 23 is bolted to the under surface of the sup
port portion 21 such bolts being shown at 24 in FIGS.
2, 3, and 4. Supported on the post is a swing or swivel
cylinder '25 having upper and lower and rearwardly pro
provide a hose guard which will underlie the hoses passing 50 jecting ears or lugs 26, 27, the lower of which receives
under the supporting frame so that stones, or other type
a transverse horizontal pivot pin 28 connecting thereto a
of material will not snag or otherwise injure the hoses.
vertically swingable boom structure 29. The upper ears
It is proposed to build the guard to two portions, the
or lugs 26 carry a conventional type extensible and re
?rst being rigidly supported to the under side of the
tractable hydraulic cylinder which operates to raise and
frame and the second portion being swivelled to the ?rst
lower the boom 28. The entire supporting frame 19' is
portion and extending rearwardly or in the direction of
?xed against sliding on the track .17, 18 by means of
the boom and so mounted so that it will swing laterally
bolts 30 received in openings, such as at 3:1, in the tracks
about the axes of the swing structure. The outer end
17, '18. The rotary type swing cylinder 25 has rearwardly
of the second frame portion is connected to the swing
positioned hose couplings 32, 33 on its rear face receiving
structure so that as the backhoe is swung from one side 60 the upper or terminal ends of hydraulic hoses 34, 35.
to the other, the guard portions will remain in a pro
The cylinder 25 is provided with suitable internal vanes,
tective underlying position relative to the hoses. It is a
not shown, against which the hydraulic ?uid operates to
further object of the present invention to incorporate into
swivel the cylinder 25 and the boom” about the upright
the hose guard a hose clamping device which will rigidly
column. The outer or rear end of the boom 29 has
support the hoses on the underside of the supporting frame
pivotally mounted thereon a dipper stick 40 which in
and will prevent the hoses from sliding fore-and-aft rela
turn has a bucket 4-1 pivotally mounted at its outer end.
tive to the supporting frame.
Extensible
and retractable hydraulic cylinders 42, 43 oper
It is still a further object of the present invention to
ate to move the dipper stick 40 about its pivot and the
incorporate into the aforementioned guard structure a
shield member above the hoses and extending from the 70 bucket 41 about its pivot respectively.
The tractor and backhoe have been described only gen
underside of the supporting frame rearwardly and then
erally and only su?iciently for purposes of orientation.
upwardly so that the hoses will rub against the smooth
8,082,890
4
However, should further description be desired, such may
be had by referring to pending applications of Messrs.
traveling in transport position, the guards 55, 61 will
prevent the hoses from hooking on obstacles extending
upwardly from the ground. The upper shield 80 will
A-ger, Serial No. 760,266, ?led September 10, 1958, and
generally protect the hoses against wear of the frame
‘his. Patent 2,994,446 issued to Messrs. Albert J. Van 5 itself. Since the rearward guard 61 and the shield 80
Auwelaer, and Oskar J. Johansen.
are pivoted on axis co-ex'tensive with the axis of the
The hoses for operating the hydraulic units 42, 43 and
cylinder 25, neither will effect the swivelling or swinging
the swing cylinder 25 extend below the underside of the
of the boom 29.
I
main supporting frame 15 and then upwardly to the cou
While only one form of the invention has been shown,
plings 32, 33 or into the hollow boom 29 to eventually 10 it is recognized that other forms and variations will occur
be connected to the respective cylinders 42, 43. The
to those skilled in the art. Therefore, it should be under
hoses are clamped by upper and lower clamping plates
stood that the description is shown for the purpose of
John L. French, Albert J. Van Auwelaer, and Douglas C.
46, 47 and are rigidly held between the plates 46, 47 by
clearly and concisely illustrating the principles of the in
tightening bolts 48. The upper plate .46 is welded to a
vention, and it is not the intention by so doing to limit
cross bar or beam 50 which in turn may be bolted, such 15 or narrow the invention beyond the broad concepts set
as at 5-1, to the underside of the rearwardly projecting
forth in the appended claims.
support portion 21. Consequently the hoses are held
What is claimed isz»
closely adjacent to the underside of the main supporting
1. A hose guard for a tractor backhoe assembly in
frame 15 and its rearwardly and rigidly projecting sup
which the tractor has a hydraulic system and the back
port 21.
The cross beam 50 carries at opposite ends thereof
hoe has a transverse supporting stand connected to the
tractor with an underside thereof spacedly from but com
pairs of depending brackets 52, 53 respectively. A U
shaped ?rst or forward guard member 55, having a later
ally extending portion 56 beneath the hoses and a pair
paratively close to the ground, a hydraulically operated
swing structure mounted on the supporting stand for
swinging about a vertical axis, a boom structure supported
of upwardly extending side portions 57, 58 positioned
on the swing structure projecting outwardly and carrying
on opposite sides of the hoses, is bolted to the depending
brackets 52, 53, such bolts being shown on the left side
at 59. Positioned adjacent the rear edge of the lateral
earth moving equipment at its outer end, hydraulic means
associated with the boom structure and earth moving
portion and extending therethrough is a vertical pivot bolt
60. The axis of the bolt 60 is co-extensive with the verti
cal axis of the hydraulic cylinder 25.
A second or rear guard member 61 has its forward end
pivotally connected to the pivot bolt 60 and is locked
thereon by a nut 62, slip-washers, not shown, being pro-,
equipment, and hydraulic hoses extending from the hy
draulic system of the tractor to an area beneath the under
side of the supporting stand and from thence upwardly
to said hydraulically operated swing structure and said
hydraulic means, said hose guard comprising: a hose
clamp mounted on the underside of the supporting stand
and holding the hoses in close proximity to the under
vided so as to permit swivelling'of the guard member 61. 35 side; a ?rst guard member ?xedly attachable to the under
side and having a laterally disposed portion beneath the
The rear guard'61 has a laterally disposed ?oor portion
hoses and upright side portions disposed on opposite sides
positioned under the hoses. The portion 64 is flared up
of the hoses; a second guard member disposed under the
wardly at both its front and rear edges 63, ‘65 respectively.
hoses
projecting from one end adjacent the ?rst
A pair of opposite disposed sidewalls‘ 66, 67 extend up
wardly from opposite edges of the portions 64, 65. A 40 guard member outwardly to an opposite end; vertical
pivot means interconnecting said ?rst and second member,
pair of brackets ‘68, 69 is ?xed to the respective side walls
said vertical pivot means being axially co-extensive with
66, 67 by means of vertically spaced bolt and nut combina
the vertical axis of said swing structure; means con
tions 70, 7d. The brackets 68, 69 are provided with
necting said second member to said swing structure where
aligned openings, such as at 72, which receive the outer
by the former will swivel about the pivot means in re
ends of the transverse pivot pins 28, previously mentioned
relative to the purpose of mounting the boom 29 on the 45 sponse to the latter swinging about its axis; a shield dis
posed on the opposite side of the hoses than the second
ear members 27. As clearly indicated by the drawings,
guard member and extending ?rst outwardly and then up
therefore, the rear guard member 61 will swivel about the
wardly to protect said hoses against rubbing contact with
pivot bolt60 in response to the cylinder 25 and the boom
29 swinging about the vertical axis of the cylinder. Also, 50 the supporting stand; a vertical swivel support on said
underside mounting the shield on the stand to swivel about
as clearly evident in FIG. 5, the rear guard member 61
an axis coextensive with the aforesaid vertical axes; and
and particularly the floor portion 64 is dished downwardly
means between the shield and the swing structure effecting
to provide a Well for receiving the excess hose as it is
lateral
swinging of the former in response to the latter.
created through vertical movement of the boom 29.
2. A hose guard for a tractor backhoe assembly in
A shield 80 is disposed above and forwardly of the 55
which the tractor has a hydraulic system and the backhoe
hoses, and is supported by a transverse metal strap 81
has a transverse supporting stand connected to the tractor
bolted to the underside of the sleeve 23, the bolts 24 used
with an underside thereof spacedly from but comparative
for mounting the sleeve 23 to the support member 21
ly close to the ground, a hydraulically operated swing
being further used for the purpose of supporting the strap
structure mounted on the supporting stand for swinging
81. Directly beneath and on thev axis of the swing cyl
about a vertical axis, a boom structure supported on the
inder 25 is provided a swivel pin 82 connecting the for
swing structure projecting outwardly and carrying earth
ward end of the shield 80 to the transverse strap 81. Con
moving equipment at its outer end, hydraulic means as
sequently the shield 80 may swing on the pin 82. The
sociated with the boom structure and earth moving equip
shield 80 extends rearwardly and laterally from the pin
‘ ment, and hydraulic hoses extending from the hydraulic
82 to a point outwardly of the edge of the lower support 65 system of the tractor to an area beneath the underside
21 and then upwardly between the cars 27 of the swing
of the supporting stand and from thence upwardly to said
cylinder 225-. Since the ears 27 will be disposed. on
hydraulically operated swing structure and said hydraulic
opposite sides of the shield 80, swinging of the cylinder
means, said hose guard comprising: a ?rst guard member
25 will also cause the shield 80 to swivel about the pin 82.
?xedly attachable to the underside and having a laterally
i As is rather obvious from viewing the drawings, the 70 disposed portion beneath the hoses and upright side por
shield '80 operates to'protect the hoses from coming into
t'ions disposed on opposite sides of the hoses; a second
coiitact with the rather rough lower edges of the support
21 and cylinder 25. The guards 55, 61 are so positioned
to protect the underside of the hoses from contact with
sharp or jagged portions on the ground. Also when
guard member disposed under the hoses and projecting
from one end adjacent the ?rst guard member outwardly
to an opposite end; vertical pivot means interconnecting
said ?rst and second member, said vertical pivot means
3,082,890
5
6
being axially coextensive with the vertical axis of said
swing structure; means connecting said second member
to said swing structure whereby the former will swivel
having a laterally disposed portion adjacent the hoses and
upright side portions disposed on opposite sides of the
hoses; a second guard member disposed adjacent the hoses
about the pivot means in response to the latter swinging
about its axis; a shield disposed above the hoses and ex
and projecting from one end adjacent the ?rst guard mem
ber outwardly to an opposite end; vertical pivot means
tending ?rst outwardly and then upwardly to protect said
interconnecting said ?rst and second member; and means
hoses against rubbing contact with the supporting stand;
connecting said second member to said swing structure
a vertical swivel support on said underside mounting the
whereby the former will swivel about the pivot means in
shield on the stand to swivel about an axis coextensive
response to the latter swinging about its axis.
with the aforesaid vertical axes; and means between the 10
l6. On a backhoe assembly adapted for mounting on a
shield and the swing structure eliecting lateral swinging
tractor having a hydraulic system, the backhoe having a
of the former in response to the latter.
transverse supporting stand mounted on the rear of the
3. A hose guard for a tractor backhoe assembly in
tractor, a rearwardly projecting support on the stand, a
which the tractor has a hydraulic system and the backhoe
vertically disposed and hydraulically operated swing cyl
has a transverse supporting stand connected to the tractor 15 inder mounted on the rearwardly projecting support for
with an underside thereof spacedly from the ground, a
revolving about a vertical axis, a boom strucutre support
hydraulically operated swing structure mounted on the
ed on the swing cylinder projecting outwardly therefrom
supporting stand for swinging about a vertical axis, a
and carrying earth moving equipment at its outer end,
boom structure supported on the swing structure project
hydraulic means associated with the boom structure and
ing outwardly and carrying earth moving equipment at 20 earth moving equipment, and hydraulic hoses extending
its outer end, hydraulic means associated with the boom
from the hydraulic system of the tractor beneath the rear
structure and earth moving equipment, and hydraulic hoses
extending from the hydraulic system of the tractor to
wardly projecting support and from thence upwardly to
said hydraulically operated swing cylinder and said hy
an area beneath the underside of the supporting stand and
draulic means, the improvement comprising: a hose clamp
from thence upwardly to said hydraulically operated 25 mounted on the underside of the support and holding the
swing structure and said hydraulic means, said hose guard
hoses in close proximity thereto; a ?rst guard member
comprising: a ?rst guard member ?xedly attachable to
?xedly attachable to the rearwardly projecting support
the underside and having a laterally disposed portion be
and having a laterally disposed portion beneath the hoses
neath the hoses and upright side portions disposed on
and upright side portions disposed on opposite sides of
opposite sides of the hoses; a second guard member dis~ 30 the hoses; a second guard member disposed under the
posed under the hoses and projecting from one end adja
hoses and projecting rearwardly from one end adjacent
cent the ?rst guard member outwardly to an opposite end;
the ?rst guard member; vertical pivot means intercon
vertical pivot means interconnecting said ?rst and second
necting said ?rst and second member, said vertical pivot
member, said vertical pivot means being axially co
means being coextensive with the vertical axis of said
extensive with the vertical aids of said swing structure; 35 swing cylinder; means connecting said second member to
and means connecting said second member to said swing
said swing cylinder whereby the former will swivel about
structure whereby the former will swivel about the pivot
the pivot means in response to the latter swinging about its
means in response to the latter swinging about its axis.
axis; a shield disposed above the hoses extending ?rst
4. A hose guard for a tractor implement assembly in
rearwardly and then upwardly; a vertical swivel on said
which the tractor has a hydraulic system and the imple 40 rearwardly projecting support mounting the shield on the
ment has a supporting stand connected to the tractor, a
latter to swivel about an axis coextensive with the afore
hydraulically operated swing structure mounted on the
said vertical axis; and means between the shield and the
supporting stand for swinging about a vertical axis, a
swing cylinder effecting lateral swinging of the former in
boom structure supported on the swing structure project
response to the latter.
ing outwardly and carrying earth moving equipment at its
7. On a backhoe assembly adapted for mounting on a
45
outer end, hydraulic means associated with the boom
tractor having a hydraulic system, the backhoe having a
structure and earth moving equipment, and hydraulic
transverse supporting stand mounted on the rear of the
tractor, a rearwardly projecting support on the stand, a
hoses extending from the hydraulic ‘system of the tractor
to said hydraulically operated swing structure and said
hydraulic means, said hose guard comprising: a ?rst guard
vertically disposed and hydraulically operated swing cyl
having a laterally disposed portion adjacent the hoses
and upright side portions disposed on opposite sides of the
hoses; a second guard member disposed adjacent the
ed on the swing cylinder projecting outwardly therefrom
and carrying earth moving equipment at its outer end,
inder mounted on the rearwardly projecting support for
member ?xedly attachable to the supporting stand and 50 revolving about a vertical axis, a boom structure support
hoses and projecting from one end adjacent the ?rst
guard member outwardly to an opposite end; vertical pivot
means interconnecting said ?rst and second member, said
vertical pivot means being axially coextensive with the
hydraulic means associated with the boom structure and
55
earth moving equipment, and hydraulic hoses extending
from the hydraulic system of the tractor beneath the
rearwardly projecting support and from thence upwardly
to said hydraulically operated swing cylinder and said
vertical axis of said swing structure; and means con
hydraulic means, the improvement comprising: a ?rst
necting said second member to said swing structure where
guard member ?xedly attachable to the rearwardly project
by the former will swivel about the pivot means in re 60 ing support and having a laterally disposed portion
sponse to the latter swinging about its axis.
beneath the hoses and upright side portions disposed on
5. A hose guard for a tractor implement assembly in
opposite sides of the hoses; a second guard member dis
which the tractor has a hydraulic system and the im
posed under the hoses and projecting rearwardly from
plement has a supporting stand connected to the tractor,
one end adjacent the ?rst guard member; vertical pivot
a hydraulically operated swing structure mounted on the 65 means interconnecting said ?rst and second member,
supporting stand for swinging about a vertical axis, a
said vertical pivot means being coextensive with the verti
boom structure supported on the swing structure project
cal axis of said swing cylinder; means connecting said sec
ond member to said swing cylinder whereby the former
its outer end, hydraulic means associated with the boom 70 will swivel about the pivot means in response to the latter
structure and earth moving equipment, and hydraulic
swinging about its axis.
8. On a backhoe assembly adapted for mounting on a
hoses extending from the hydraulic system of the tractor
tractor having a hydraulic system, the backhoe having a
to said hydraulically operated swing structure and said
transverse supporting stand mounted on the rear of the
hydraulic means, said hose guard comprising: a ?rst guard
member ?xedly attachable to the supporting stand and 75 tractor, a rearwardly projecting support on the stand, a
ing outwardly and carrying earth moving equipment at
3,082,890
7
vertically disposed and hydraulically operated swing cyl
inder mounted on the rearwardly projecting support for
revolving about a'vertical axis, a boom structure sup‘
ported on the swing‘cylinder projecting outwardly there
from and carrying earth moving equipment at its outer
end, hydraulic means associated with the boom structure
and earth moving equipment, and hydraulic hoses extend
ing from the hydraulic system of the tractor beneath the
8
boom structure, swivel means mounting the boom struc
ture on the supporting stand, hydraulic means associated
with the boom structure, and hydraulic conduit means
extending from the hydraulic system to the hydraulic
means, said guard comprising: a ?rst guard member
?xedly attached to the supported stand and having a lat
erally disposed portion adjacent the conduit means and
side portions on opposite sides of the conduit means; a
rearwardly projecting support and from thence upwardly
second guard member disposed adjacent the conduit
to said hydraulically operated swing cylinder and said 10 means and extending from one end adjacent the ?rst
hydraulic means, the improvement comprising: a laterally
guard member to a second end adjacent the boom struc
disposed guard member under the hoses; vertical pivot
ture, the adjacent ends of the ?rst and second guard
means mounting the guard member on the rearwardly
members being interrelated so as to accommodate rela
projecting support, said vertical pivot means being co
tive movement between the ?rst and second guard mem
extensive with the vertical axis of said swing cylinder; 15 bers while retaining protection for the conduit means;
means connecting said guard member to said swing cyl
and means connecting the second end of the second guard
inder whereby the former will swivel about the pivot
member to the boom structure whereby the former will
means in response to the latter swinging about its axis; a
move relative to the ?rst guard member upon the boom
shield disposed above the hoses extending ?rst rearwardly
structure swiveling relative to the supporting stand.
and then upwardly; a vertical swivel on said rearwardly
13. A guard for a tractor implement assembly in which
projecting support mounting the shield on the latter to
the tractor ‘has a hydraulic system and the implement has
swivel about an axis coextensive with the aforesaid verti
cal axis; and means between the shield and the swing cyl
inder effecting lateral swinging of the former in response
to the latter.
a supporting stand connected to the tractor, a boom struc
ture, swivel means mounting the boom structure on the
supporting stand, hydraulic means associated with the
25 boom structure, and hydraulic conduit means extending
9. Oua backhoe assembly adapted for mounting on a
tractor having a hydraulic system, the backhoe having a
transverse supporting stand mounted on the rear of the
tractor, a rearwardly projecting support on the stand, a
vertically disposed and hydraulically operated swing cylin
der mounted on the rearwardly projecting support for
revolving about a vertical axis, a boom structure sup
ported on the swing cylinder projecting outwardly there
from and carrying earth moving equipment at its outer
from the hydraulic system to the hydraulic means, said
guard comprising: an elongated ?rst guard member
?xedly attached to the supporting stand in protective rela
tion to the conduit means; a second guard member dis
30 posed in protective relation to the conduit means and
extending from one end adjacent the ?rst guard mem
ber toward the boom structure, the adjacent ends of the
?rst and second guard members being interrelated so
as to accommodate relative movement between the ?rst
end, hydraulic means associated with the boom struc 35 and second guard members while retaining protection for
ture and earth moving equipment, and hydraulic hoses
the conduit means; and means connecting the second
extending from the hydraulic system of the tractor be
guard member to the boom structure whereby the former
neath the rearwardly projecting support and from thence
will move relative to the ?rst guard member upon the
upwardly to said hydraulically operated swing cylinder
boom structure swiveling relative to the supporting stand.
and said hydraulic means, the improvement comprising: 40
14. A guard for a tractor implement assembly in which
the tractor has a hydraulic system and the implement has
a laterally disposed guard member under the hoses; a
vertical pivot means mounting the guard member on the
a supporting stand connected to the tractor and normally
rearwardly projecting support; said vertical pivot means
supported on the ground, a boom structure, swivel means
being coextensive with the vertical axis of said swing
mounting one end of the boom structure on the support
cylinder; and means connecting said guard member to 45 ing stand, hydraulic means associated With the boom
said swing cylinder whereby the former will swivel about
structure, and hydraulic conduit means extending from
its pivot axis in response to the latter swinging about its
the hydraulic system to the hydraulic means, said guard
comprising: a ?rst guard member ?xedly attached to the
axis.
supporting stand and having a laterally disposed portion
10. The invention de?ned in claim 9 in which the guard
member is disposed under the hoses and has therein a 50. underlying the conduit means; a second guard member
well portion for receiving excess hose.
.
11. On a backhoe assembly adapted for mounting on
a tractor having a hydraulic system, the backhoe having
having a laterally disposed portion underlying the con
duit means and extending from an end adjacent the ?rst
a transverse supporting stand mounted on the rear of the
guard member toward the boom structure, the adjacent
ends of the ?rst and second guard members being inter
tractor, a rearwardly projecting support on the stand, a
related so as to accommodate relative movement between -
vertically disposed and hydraulically operated swing
the ?rst and second guard members while retaining pro
cylinder mounted on the rearwardly projecting support
from and carrying earth moving equipment at its outer
tection for the conduit means; and means connecting the
second guard member to the boom structure whereby
the former will move relative to the ?rst guard member
upon the boom structure swiveling relative to the sup
end, hydraulic means associated with the boom structure
porting stand.
and earth moving equipment, and hydraulic hoses extend
ing from the hydraulic system of the'tractor beneath the
15. A guard for a tractor implement assembly in which
the tractor has a hydraulic system and the implement has
a supporting stand connected to the tractor and normally
for revolving about a vertical axis, a boom structure sup
ported on the swing cylinder projecting outwardly there
rearwardly projecting support and from thence upwardly
to said hydraulically operated swing cylinder and said 65 supported on the ground, a boom structure, swivel means
hydraulic means, the improvement comprising: a laterally
mounting one end of the boom structure on the support
ing stand, hydraulic means associated with the boom struc
ture, and hydraulic conduit means extending from the
hydraulic system to the hydraulic means, said guard com
projecting support; and means connecting said guard
member to said swing cylinder whereby the former will 70 prising: a guard member adjacent the conduit means and
in protective relation to the conduit means; means con
swivel about its pivot axis in response to the latter swing
necting the guard member to the supporting stand so as
ing about its axis.
‘
to accommodate relative movement between the guard
12. A guard for a tractor implement assembly in
member and stand while retaining protection for the con
which the tactor has a hydraulic system and the imple
ment has a supporting stand connected to the tractor, a
duit means; and means connecting the guard member to
disposed guard member under the hoses; vertlcal pivot
means mounting the guard member on the rearwardly
3,082,890
9
the boom structure whereby the former will move rela
tive to the supporting stand in response to the boom struc
ture swiveling relative to the supporting stand.
16. The invention de?ned in claim 15 in which the
tractor and implement are positioned on opposite sides
of the supporting stand, the supporting stand has a lateral
surface overlying the conduit means and the guard mem
ber includes a portion thereof which is disposed beneath
10
boom structure, and hydraulic conduit means extending
from the hydraulic system to the hydraulic means, said
guard comprising: ?rst and second guard members in
protective relation to the conduit means and attached to
the supporting stand and boom structure respectively, said
guard having overlapping adjacent ends for accommodat
ing relative movement between the ?rst and second guard
members while retaining protection for the conduit means
upon the boom structure swiveling relative to the support
the conduit means and below the aforesaid lateral sur
10 ing stand.
face.
17. A guard for a tractor implement assembly in which
References Cited in the ?le of this patent
the tractor has a hydraulic system and the implement has
UNITED STATES PATENTS
a supporting stand connected to the tractor, a boom struc—
McCallum ___________ __ Apr. 9, 1957
ture, swivel means mounting the boom structure on the 15 2,788,203
supporting stand, hydraulic means associated with the
2,878,951
Pilch _______________ __ Mar. 24, 1959
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