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Патент USA US3027151

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March 27, 1962
Filed Feb. 10, 1958
5 Sheets-Sheet 1
March 27, 1962
Filed Feb. 10, 1958
3 Sheets-Sheet 2
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March 27, 1962
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Filed Feb. 10, 1958
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United States Patent ()?fice
Patented Mar. 27, 1962
ing to aid steered turns, it permits the drum to be swung
to line up the winch with an angled logging arch; fur
thermore, the angling feature can be used as a reeling
John H. Ellis, 6 Main St, Warrensburg, N.Y., assignor of
device to permit tight wrapping of the cable on the drum
fifty percent to Norman S. Blodgett, Westboro, Mass.
in smooth layers, and it can be used when moving the
Filed Feb. 10, 1958, Ser. No. 714,353
tractor in yaw to aid it in towing.
2 Claims. (Cl. 254-166)
Another object of the invention is to provide a winch
which remains truly free-spooling whenever it is de
This invention relates generally to a winch and more
particularly to apparatus for placing a cable in tension
clutched, due in part to a design which obviates the need
by winding it on a drum.
1O for either brakes or clutches which develop dragging
In the past, it has been common practice to use a
characteristics in use and also due in part to the avoid
winch at one end of a tractor to coil a cable having a
ance of winch-drum wear and consequent deformation,
load at its other end. The cable may be used to drag
causing the drum to rub on the frame, and caused by
a log through the woods, in which case the tractor is
frequent reeling of cable attached to loads, wherein the
usually of the crawler type. The cable may, of course, 15 cable is not perpendicular to the drum axis.
pass through a block and tackle forming part of a der
With these and other objects in view as will be appar
rick or the like. In any case, these winches have al
out to those skilled in the art, the invention resides in
ways been ?xed to the tractor with the axis of rotation
the combination of parts set forth in the speci?cation
in a permanent position relative to the tractor. This lim—
and covered by the claims appended hereto.
its the use of the winch considerably and has many un 20
The character of the invention, however, may be best
desirable features. For one thing, it is not always pos
understood by reference to certain of its structural forms
sible to have the line of action of the cable at a right an
as illustrated by the accompanying drawings in which:
FIGURE 1 is a perspective view of a crawler-type trac
gle to the axis of the drum; when the cable enters the
drum at any angle other than the perpendicular, it is
tor carrying a winch constructed according to the prin
not only di?icult to make it coil properly, but there is 25 ciples of the present invention,
considerable wear on the cable and winch.
These and
other difficulties experienced with the prior art devices
have been obviated in a novel manner by the present
FIGURE 2 is a sectional view of the winch taken on
the line II-II of FIGURE 3,
FIGURE 3 is a view of the winch taken on the line
III-III of FIGURE 2, and
It is, therefore, an outstanding object of the present 30 FIGURE 4 is a sectional view of a portion of the in
invention to provide a winch which may be readily at
tached and detached from a vehicle; and which is readily
vention taken on the line IV--IV of FIGURE 2.
In this speci?cation the expressions “longitudinal,”
changed from one vehicle to another or readily removed
“transverse,” and similar expressions refer to the corre
from a given vehicle for replacement by another attach
sponding directions as they are used as they relate to
35 the vehicle to which the winch is attached.
Another object of this invention is the provision of a
Referring ?rst to FIGURE 1, wherein are best shown
winch which is completely hydraulically driven and which
may be readily and simply attached to the usual hydrau
the general features of the invention, the winch indi
cated, generally by the reference numeral It} is shown
lic system of the vehicle.
It is a still further object of the instant invention to
provide a winch whose drum axis may be adjusted by
means of a control at the operator’s station to permit
the cable line to be maintained at right angles to the
drum axis.
Another object of the invention is the provision of a 45
attached to the rear of a crawler type tractor 11 having
a hydraulically-actuated loader 12 at its forward end.
The winch is shown in use in winding one end of a cable
13 to the other end of which is attached a load, not
shown. It can be seen that the tractor 11 is provided
with a substantial vertical transverse surface 14 to which
winch of completely hydraulic design, which is simple
the winch It} is attached. The surface 14 forms part of
the frame of the tractor and it will be appreciated that
to mount and is quickly and easily removed from its
such a ?xed surface is available on almost any vehicle
to which it may be desired to attach the winch.
and can be temporarily mounted in various places.
As is generally evident in FIGURE 1 and as is more
It is another object of this invention to provide a winch
speci?cally shown in FIGURES 2 and 3, the winch 10
consists of a drum 15, mounted in a frame 16 which in
which is simple to maintain, which is ruggedly con
turn is pivotally attached to a base 17. The base in turn
structed, and which will give a long life of useful service.
Another object of the invention is the provision of
is bolted to the aforementioned vertical surface 14- of
the tractor 11. Also attached to the frame 16 is a gear
a Winch which can be clutched by the vehicle driver;
which remains truly free-spooling when the clutch is 55 box 18 on the upper portion of which is attached a hy
disengaged; and in which means is provided to insure
draulic rotary positive-displacement motor 19 of the well
simple clutch re-engagement when desired.
known type. Connected between the base 17 and the
frame 16 is a hydraulic linear actuator 21 of the cylin
Another object of the invention is the provision of a
der-and-piston type. Suitable hydraulic conduits 22 and
winch which can be fully controlled by the vehicle driver,
whose operating station may be as remote from the part 60 23 are connected to the actuator 21 and similar pair of
hydraulic conduits 24 and 25 are connected to the mo
of the machine on which the winch is mounted as hydrau
lic conduits can be feasibly extended.
tor 19. The hydraulic conduits 22, 23, 24 and 25 are
suitably connected through appropriate valves and the
It is another object of this invention to provide a
small sub-base; it can be used on more than one machine
winch whose angularity can be readily adjusted relative
like, not shown, to the hydraulic system of the tractor
to the vehicle on which it is mounted, thus permitting a 65 11, which hydraulic system also serves the loader 12.
straight line pull of the cable under the drum when the
The base 17 is a weldment made up of a forward plate
26 which is adapted to be attached to the surface 14 of
load lies at an angle to the tractor, thus saving cable,
saving the winch, and saving time in positioning the trac
the tractor 11 by means of ‘bolts 27 and 28 and a rearward
tor; this angling feature also permits the tractor to haul
plate 29 which is held in spaced, parallel relationship to
a load after winching is stopped with the cable pull point 70 the forward plate byan intermediate member 31. Ex
centered in the rear of the tractor to facilitate pulling
tending from the rearward plate 29 in upper and lower
and steering, it permits the drum to be used for swing~
positions respectively are hinge plates 32 and 33, each of
which is provided with a vertical aperture 35 extending
therethrough. Extending from the side of the base 17
clutch 93. The male portion 94 is fastened to the end of
the shaft 66.
midway between the top and the bottom is an ear 34- which
is provided at its outer extremity with an aperture 36
underlie the worm gear 87 . One end of the worm extends
A suitable worm 95 is mounted in bearings so as to
which extends vertically therethrough.
The frame 16 is of a generally U-shaped cross-sectional
form having a transverse body member 37 from which
extend in the rearward direction side plates 38 and 39 in
spaced parallel relationship. The body member 37 is pro
vided with a vertical forward surface 41 from which ex
from the gear box 18 and has attached thereto a sprocket
96. The sprocket resides in a sprocket box 97 having a
cover 98. .As is evident in FIGURE 3, the sprocket box
97 extends upwardly to the same height as the motor 19
and a shaft 99 of the motor 19 extends into the sprocket
10 box and has attached thereto a sprocket 101. The sprocket
tend hinge plates 42, 43, 44, and 45. These hinge plates
101 and the sprocket 96 are joined in driving relationship
are adapted to embrace the hinge plates 32 and 33 of the
base 17. Furthermore, they are provided with apertures
which align themselves with the apertures 35 of the hinge
plates 32 and 33. Suitable pins 46 and 47 extend through
the aligned apertures and hold the hinge plates in opera
by a chain 102.
tive relationship.
consists of a main body 105 through which extends a bore
106 in which the shaft 103 resides. The shaft 103 is
The side plate 38 of the ‘frame 16 is
provided with a bore 48 in which is carried a cylindrical
extension 49 of a cover 51. The cover is suitably bolted
to the side plate 16. Attached to the cover 51 is an ear
52 having a vertical aperture 53 therethrough. The linear
actuator 21 is provided with a, piston rod 54 having an
enlarged outer end provided with an aperture which is
At the end of the stub shaft 91 opposite the clutch 93 is
suitably fastened an extension shaft 103 which extends
through the outer wall of the outer member 79 and acts
as the plunger member of a valve 104. The valve 104
formed with an annular groove 107 in the central portion
thereof. An inlet passage 108 enters one side of the main
body 105 and an outlet passage 109 is formed at the other
side; particular reference should be made to FIGURE 4.
The inlet passage and the outlet passage are joined by a
con?gured passage 111 which extends through the bore
aligned with the aperture 53 in the ear 52. A suitable pin
55 joins the two. The linear actuator is also provided with 25 106 in which the shaft 103 resides. An adjusting screw
112 enters the passage 111 and serves to adjust the cross
a cylinder 56 having an ear 57 at the end opposite the
sectional area thereof. From an observation of FIGURE
piston rod 54.
2 it can be seen that, when the teeth of the clutch 93 are
This ear is provided with an aperture adapted to be
disengaged, the annular groove 107 and the shaft 103
aligned with the aperture 36 of the ear 34 and a suitable
fastener 58 extends therethrough to hold the two in opera 30 reside within the passage 1111, giving communication be
tive relationship.
tween the inlet passage 108 and the outlet passage 109.
When, however, the teeth are in engagement the shaft
The cover 51 is provided with a central bore 59 which in
103 is in a left position lying within the bore 106 but the
turn is provided with a cylindrical counter bore 61. Re
annular groove 107 is outside of the passage 111 so that
siding in the counter bore 61 is a ?ange 62 of the housing
of a roller bearing 63. The side plate 39 of the frame 16 35 the valve is effectively shut off. The inlet passage 108 of
the valve is connected through a T-?t-ting 113 to the con
is provided with a bore 64 which is aligned with the bore
duit 24 carrying hydraulic ?uid to the motor 19, while the
59 of the cover 51 and which carries the housing of a
outlet passage 109 is connected through a T-?tting 114 to
roller bearing 65. The roller bearings 63 and 65 carry a
the conduit 25 carrying hydraulic ?uid away from the
shaft 66 to which is fastened to the drum 15 by means of
40 motor 19. The valve, therefore, acts as a by-pass between
a key 67.
the two conduits when it is open.
The drum 15 consists of a main body 68 having a gen—
The outer end of the shaft 103 is formed with a clevis
erally cylindrical outer surface and ?anges 69 and 71.
which is connected through a pin 115 to one end'of a
The ?ange 69 resides in the bore 48 in the side plate 38
lever 116. The intermediate portion of the lever is piv
of the frame 16. The outer edge of the side plate 38 is
provided with a curved surface 72 which merges with 45 otally attached by a pin 117 to an ear 1118 extending from
the main body 105 of the valve 104. The other end of the
the inner surface of the ?ange 69 so that two present a
lever 116 is connected through a hydraulic cylinder 121 to
single unbroken surface. The ?ange 71 resides in an
the gear box. Hydraulic ?uid ?ows to and from the cylin
annular recess 73 formed in the inwardly directed side of
der 121 through conduit-s 122 and 123, these conduits
the side plate 39 and the side plate is provided with a
curved surface 74 which merges with the inwardly directed 50 being connected to the hydraulic system of the vehicle
through valving apparatus adjacent the operator.
surface of the ?ange 71 and forms therewith a continuous
The operation of the winch of the invention will now
unbroken surface. The main body 68 of the drum 15 is
be readily understood in view of the above description.
provided with an enlarged cylindrical portion 75 and a
To begin with, it will be clear that the frame 16 carrying
cored socket 76 for receiving the end ferrule of the
the drum 15 and the gear box 18 may be rotated about
cable 13.
a vertical axis de?ned by the aperture 35 and the pins
The outer surface of the side plate 39 is provided with a
46 and 47. The angularity at which the winch resides
recess 77 in which is mounted the inner member 78 of
with respect to the base 17 and the tractor 11 is de
the gear box 18. The outer member 79 is suitably fastened
termined by the setting of the hydraulic linear actuator
to the inner member to de?ne a box-like inner recess.
The inner member 78 is provided with tube-like protuber 60 21. This in turn is determined by the driver who has
available suitable valving apparatus controlling the ?ow
ance 81 having a counter bore 82 in which is mounted a
of hydraulic ?uid to and from the cylinder 56 through
roller bearing 83. A similar tube-like protuberance 84
extends from the outer member 79 in line with and
opposd to the protubance 81. The protuberance 84 is
provided with a counter bore 85 in which is mounted a
roller bearing 86. Situated between the protuberances 81
and 82 is a worm gear 87 having a central hub 88 by
which it is mounted in the roller bearings 83 and 86. The
worm gear 87 is provided with a central bore 89 in which
is mounted a stub shaft 91, the gear and shaft being suit
ably keyed together. The bearings, the gear and the stub
the conduits 22 and 23. This type of control of a hy
draulic cylinder is well known in the art and further
ampli?cation is not necessary in the present case. The
valving apparatus also provides for control of ?ow to the
motor 19 by way of the valve 104. Once the setting of
the drum has been established, suitable settings of the
valving apparatus will provide for the locking of the
?uid within the actuator 21 so that it acts as a rigid
member. During the operation of the winch, the motor
19 will receive ?uid continuously from the conduit 24,
assuming that the operator has manipulated the valving
shaft are aligned with the shaft 66 of the drum. On the
end of the stub shaft 91 which is directed toward the
apparatus on the vehicle properly, and return it to the
drum is mounted the female portion 92 of a tooth-type 75 tractor pump through the conduit 25. The motor 19
runs continuously when the operator thus causes ?ow.
However, the valve 184 furnishes a by-pass between the
incoming and the outgoing conduits and, when the valve
of the tractor proper which, in terms of operating factors,
saves time and fuel. Furthermore, in such an operation
as dragging logs through the woods it is possible to as
1114 is opened only a small amount of ?uid passes
sure that the cable pull~point is centered in the rear of
through the motor 19. This amount of ?uid depends
upon the setting of the screw 112 of the valve. There
fore, when the valve 194 is open, the motor rotates at
the tractor to facilitate pulling and steering. In addi
tion, in pulling such a load along a curved or winding
slow speed and reduced torque.
road, changing the angle of the drum during turning will
When, however, the
permit steered turns and also facilitate the handling of
valve 104 is closed, the motor 19 revolves at its rated
the load. In winding the cable on the drum, it is clear
speed and torque. The motor 19, of course, serves to 10 that being able to vary the angle during the winding
drive the drum 15 by rotating the shaft 99 and causing
will permit the cable to be laid on the drum in smooth
power to ?ow from the sprockets 101 through the chain
layers. It should be noted that the use of a positive
102 to the sprocket 96 and from the sprocket 96 through
displacement motor permits locking of the drum with
the worm 95 to the worm gear 87. Rotation of the Worm
out the necessity of a separate braking means and, fur
gear 87 operates through the stub shaft 91 and the clutch 15 thermore, when, the drum is being brought to a stop,
93, if it is in engaged condition, to drive the shaft 66 to
manipulation of the valving apparatus on the vehicle will
which the drum 15 is keyed. However, the apparatus,
permit the operator to use this motor as a. brake. The
as it is shown in FIGURE 2, is in an “inoperative” con
removal from the system of the usual friction brakes also
dition with the shaft 103 drawn to the right. In this
obviates the di?iculties usually attendant upon the use
condition a free passage is provided from the conduit 20 of such brakes.
24 to the conduit 25 through the inlet passage 108, the
It is obvious that minor changes may be made in the
con?gurated passage 111, the annular groove 107 of the
form and construction of the invention without depart
shaft 1113 and the outlet passage 109. The motor 19,
ing from the material spirit thereof. It is not, however,
therefore, is revolving at a slow speed and low torque
desired to con?ne the invention to the exact form herein
depending upon the setting of the screw 112 and serves 25 shown and described, but it is desired to include all
such as properly come within the scope claimed.
to rotate the worm gear 87 and the female portion of
the clutch 93 slowly and gently. When the operator
The invention having been thus described, what is new
and desired to secure by Letters Patent is:
desires to engage and drive the drum he activates the cyl
inder 121 to move the shaft 103 to the left.
Since the
l. A winch for use with a vehicle comprising a base
female portion 92 of the clutch 93 is revolving at slow 30 adapted to be fastened to the vehicle and having a sub
speed, the teeth of the clutch under the pressure of the
stantial plane vertical surface adapted to face rear
operator will engage and move to operative engaging re
wardly of the vehicle, a frame connected to the base rear
wardly of the said vertical surface for movement about
portion it would be di?icult to engage the teeth of the
a vertical pivot, a cable drum rotatably mounted in the
clutch. The movement of the shaft 103 to the left also 35 frame for rotation about a horizontal axis parallel to
causes the annular groove 107 to reside outside the con
and spaced from the said surface of the base, an actu
?gured passage 111 of the valve 104 so that no by-pass
ator for moving the frame about the said vertical pivot,
of fluid from the conduit 24 to the conduit 25 takes place
a gear box mounted on the frame, and a motor mounted
and the motor 19 rotates at its high speed and full power.
on the gear box, the said vertical pivot being located
It can be seen then that the drum 15 when the clutch 93 40 between the axis of the drum and the said surface of the
is not engaged is free to revolve in the roller bearings
base and being spaced a considerable distance from the
63 and 65. It will be appreciated that the operator can
said drum axis.
manipulate his valving apparatus on the vehicle so as
2. A winch for use with a vehicle comprising a base
to cause the motor 19 to rotate in either direction. Fur
adapted to be fastened to the vehicle and having a sub
lationship. Without this slight movement of the female
thermore, when the motor is not revolving, the valving 45 stantial plane vertical surface adapted to face rearwardly
apparatus will lock the hydraulic system, so that the
of the vehicle, a frame connected to the base rearwardly
motor cannot revolve, thus acting to lock the drum.
of the said vertical surface for movement about a vertical
It can be seen then that the present winch provides a
pivot, a cable drum rotatably mounted in the frame for
completely hydraulically-driven winch which may be
rotation about a horizontal axis spaced from the said
readily connected into the hydraulic system of the stand 50 surface of the base, a linear hydraulic cylinder for mov
ard tractor. This winch is simple to mount and is
ing the frame about the pivot, a gear box mounted on the
quickly and easily removed from its base by the removal
frame, and a hydraulic motor mounted on the gear box,
of the pins 58, 46 and 47, leaving the base behind on the
the gear box having an input shaft connected to the
vehicle. The basic winch unit may be used on more than
motor and an output shaft connected to the drum for
one machine or vehicle by providing a plurality of the 55 the rotation of the drum, the said vertical pivot being
located between the axis of the drum and the said sur
bases 17 to which it may be attached. There is no reason,
of course, why the basic winch unit cannot be mounted
face of the base and being spaced a considerable distance
from the said drum axis.
in various places where a winch would not normally be
provided. Furthermore, the unit is simple to maintain
and the elements which might be subject to wear are 60
References Cited in the ?le of this patent
readily removed; for instance, the gear box 18 is readily
removed from the frame 16 and the drum may be readily
removed by removing the cover 51 from the left side of
the frame. The sprockets 96 and 101 and the chain
102 are readily accessible through the cover 98. The 65
fact that the winch angle may be changed at will per
mits the cable to be pulled onto the drum at a right
angle to the axis of the drum at all times. This has the
effect of preventing wear on the cable, preventing wear
on the drum and, also, saves considerable positioning
Hansen ____________ __ Apr. 28,
Schield ______________ .._ Aug. 20,
Kuert _______________ __ July 26,
Wunsch ____________ __ Nov. 7,
Nitkey ______________ __ Sept. 11,
Maier ______________ _- Apr. 21,
Rowe _______________ __ July 14,
Mork ______________ __ Apr. 27,
Wills ________________ _.- Sept. 8, 1959
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