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Патент USA US2405156

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Aug. 6, 1946-
s. s. MclNTYRE
2,405,156
HOIST
Filed Sept. 2'7, 1944
' 2 Sheets-Sheet 2
M
INVENTOR,
‘aw/5y
BY
- Wf]? mi
‘
Patented Aug. 6, [191463
2.45.15 ‘
UNITE
STATES
TENT OFFIC
2,405,156
HOIST
Sidney S. McIntyre, Sedro-Woolley, Wash.
Application September 27, 1944, Serial No. 555,958
5 Claims. (01. 254-187)
This invention relates to cable winding hoists
and the like, and it has reference more particu
larly to improvements in a cable winding drum
and driving clutch combination that is especially
adapted for use in hoists of those types used ex
2
embodying improvements in accordance with the
stated objects of the present invention.
Fig. 2 is a somewhat enlarged sectional view of
one of the cable winding drums, taken substan
tensively in logging operations and comprising 5 tially in its horizontal axial plane and showing
cable winding drums mounted for/free turning
on their supporting shafts and designed to be
driven for the winding in of cables thereon,
through the engagement of cooperatively ar 10
ranged clutch elements ?xed on end ?anges of
the drums and on driven gears that are mounted
to revolve on the drum mounting shafts and to
be shifted on their shafts, from and toward the
drums, as is required to engage‘or disengage, by 15
spring pressure, the complemental clutch ele
ments.
It is the principal object of this invention to
provide novel control means for the manual shift
ing and holding of the drum driving gear wheels 20
for the quick and effective engagement or dis
engagement of complemental clutch elements;
and through which pressure may be applied to
hold the clutch elements functionally engaged
the cable winding drum and its adjusting means,
the drum supporting shaft, and the correspond
ing driving gear and clutch mechanism.
Fig. 3 is a cross section taken on line 3—3 in
Fig. 2.
a
'
Fig. 4. is a vertical section taken on line ll~? in
Fig. 2.
Fig. 5 is a cross section of a shaft bearing,
taken On line 5-5 in Fig. 2, and showing the
adjustable split sleeve as clamped in the bearing.
Fig. .6 is a detail of the clutch adjusting nut
and its turning lever.
Fig. 7 is a detail of the drive shaft and its sup
porting bearings.
1
Referring more in detail to the drawings—
The frame structure of the present hoist com»
prises two parallel, transversely spaced and lon~
gitudinally extended base beams l and I (seen
in Fig. 2) of channel or I-beam form, joined
but with a minimum of friction and wear on the 25
across one end of the frame by spaced, transverse- '
parts of the control means. Furthermore, to
ly directed beams 2 and 2a, ?xed rigidly by suit
provide a manual clutch means for applying the
clutch that is carried on the drum mounting shaft
itself, and not on independent frame members.
Another object of the invention is to provide
novel means for maintaining the drum against
movement along its shaft and its proper relation
ship to the clutch elements.
Another object of the invention is to provide
a combination as above stated that is relatively
simple and comparatively inexpensive, yet effec
tive and ef?cient in its use.
It is also an object of the invention to provide
an improved form of hoist frame structure where
able means upon their upper edge ?anges. Upon
these cross beams 2 and 2a, the base frame 3 of
the power plant, or engine, 3:1: is supported. The
engine base frame is securely bolted, as at 4, to
these latter cross beams and, being of heavy rigid
construction, it serves in effect as a part of the
frame structure. The engine 35c, as here shown,
is disposed transversely of the base frame and
its drive shaft 35 is equipped at one end with a
belt driving pulley or gear 5.
Rigidly erected on the beams l and l, substan
tially medially of their ends, and in oppositely
in the frame of the power plant and the cable 40 disposed relationship, are longitudinal frames 6
that are joined across their ends by a channel
drum mounting shafts serve as parts of the frame
beam 6’, as seen in Fig. 1. .Each of the frames 6
structure, giving rigidity, strength and durability
is equipped with bearings, as at ‘I in Fig. 7, where
1
in a drive shaft 8 is rotatably mounted. This
Other objects of the invention reside in the
details of construction of the various parts em 45 drive shaft is equipped at its end with a belt gear
or pulley 9 alined with the engine gear or pulley
bodied in the device; in their combination and
5 and a belt Ill extends about these parts to drive
relationship in the operative assembly and in the
the shaft 3. Keyed or otherwise ?xed on the
mode of use and operation of the device as will
shaft 8, at the inside of bearing 7, are driving gear
hereinafter be fully described.
In accomplishing the above mentioned and 50 wheels I! and l i’ (see Fig. 6) which, respectively,
are in driving mesh With larger gear wheels l2
other objects of the invention, I have provided
and If’ that are revoluble on cross shafts l3 and
the improved details of construction, the preferred
it’ which respectively support cable winding
forms of which are illustrated in the accompany
ing drawings wherein_
drums I4 and It’ for rotation thereon. The shaft
Fig. 1 is a side view of a cablewinding hoist 55 l 3 is shown in Fig. 2 as being mountedat its ends
in bearings lit-I5’ which are formed on the top
thereto without additional weight.
2,405,156
formed with a reduced, exteriorly threaded ex
?anges of the longitudinal beams l and I, and
tension 54 and threaded onto this is a cap or nut
55 equipped with a turning lever or handle 55.
the drum i4 is supported for rotation on this
shaft through the mediacy of anti-friction bear
ings i6 and [6 applied and secured within the
opposite ends of its hub portion. The inner race
way N5’ of the bearing at one end of the drum
engages against an annular shoulder IT on the
shaft. At the other end of the drum, a split
sleeve I8 is applied about the shaft and this en
gages at its inner end with the inner raceway of
the corresponding hearing it. A nut i9 is
threaded onto the shaft end to engage the outer,
end of the sleeve to press it tightly against the
Formed coaxially in that same end portion of
the shaft I3 is a bore 51 and contained in the
bore, and engaged end to end, are two short
push rods 58, each formed with spherically
rounded end surfaces in engaging contact. The
inner end of the inner rod 58 centrally engages
10 the cross bar 5| and the outer end of the outer
rod likewise engages against a hardened button
_ 50 that is applied to the base of cap 55. Thus,
by rotation of the cap in a direction to thread
it onto the extension 54, the push rods 58 will
bearing, thus to hold the drum in place to prevent " ' apply inward pressure on cross bar 5| whereby
its shifting on the shaft. The split sleeve {8 is
' to move gear l2 inwardly on shaft l3 to engage
seated in the frame bearing l5’ and is ‘to be
the clutch elements of gear and drum to drive
clamped securely against movement after ad
the drum. When the cap 55 is turned in the other
justment, by the bearing cap 15:1: as shown in’
direction to thread it outwardly, pressure through
Fig. 5.
the push rods 58 is released and the pressure of
the springs 38 On plate 31 shifts the gear out
At one end, the drum (4 is equipped with a .
brake rim 20 to which a brake band, not shown.
may be applied to control the paying out of a
cable from the drum, and at its other end, the
drum has a ?ange 22 equipped concentric of the
drum axle, with an annular inwardly tapered
channel 23 for reception of correspondingly
tapered clutch shoes 24 that are ?xed to the in
side face of the driven gear wheel l2.
Gear wheel i2 is mounted by an anti-friction
bearing 25 to rotate freely on shaft l3 and there is
provision for limited, longitudinal shifting of the
gear on the shaft in order to engage, or disengage
wardly and disengages the complemental clutch
elements; .thus the drum is free to revolve on its
shaft for unwinding the cable therefrom under
control of whatever brake mechanism might be
. used.
It is noted in Fig. 6 that the hand lever 55
is formed with a split collar mounting 65 that
may be applied about the cylindrical outer sur
face of the nut 55 and then secured by a clamp
bolt 57 that is passed through lugs 68 on the
split ends of the collar. This provision'makes
possible adjustment and securement of the lever
to any desired operating position.
the clutch shoes with the side surfaces of the
clutch channel. The means for shifting the
It has been shown in Fig. 1 of the drawings,
driven clutch gear and for holding it in engaged
that the drum [4' is carried on the cross shaft
or disengaged positions, form an important part
l3’. This shaft is mounted in bearings. l5 on
of this invention, and will now be described.
the upper .edge of frames 5. The mounting of
By referring more particularly to Figs. 2, 3 and
this drum and details of its control means are
4, it is to be observed that the hub portion 121: of
40 like those of drum l4 already described, and the
gear wheel i2 contains the bearing 25 therein
description will not be repeated, but will be un
and the bearing assembly is held in place by a
derstood to apply equally to both.
’
ring or‘ collar 3!) that is slidable along the shaft
With the hoist so constructed, it will be un
and is contained rotatably within a collar 3!
derstood that the cross shafts l3 and I3’, when
that is ?xed to the hub by bolts 32. The collar
fixed in their supporting hearings, will add to the
3| and wheel hub may rotate freely about collar
rigidity of the hoist structure and therefore these
39, but the wheel hub is not shiftable endwise
shafts, aside from that of mountings for the
of the collar 30 due to the fact that the collar is
drums, serve the additional purpose of frame
held between the bearings 25 and the retained
members.
Y
collar 3 l.
'
The clutch control means is positive'and effec
30
and
extended
therefrom
‘
Fixed in the collar
tiv'e,‘and reduces wear to a minimum. The partsv
along shaft (3 and slidably through the shaft
5i and 58 are easily removable for replacement
supporting bearing l5, are pull rods 35, shown
when worn and these are the only parts that
best in Fig. 2. At their outer ends these rods are
receive any appreciable amount of wear. The
anchored by nuts 36 in an annular plate or disk
clutch setting devices, because'of their being on
31 that encircles the shaft l3. Between the disk @ the shaft l3 and not on an independent member,
31 and abutments 38 that are ?xed on the bearing
at all times maintain the same relationship to the
[5, are coiled springs 39. These are held under
gear and drum.
_
compression, and act through the disk 31 and
Having thus described my invention, what I
rods 35 to automatically pull the gear wheel l2
to clutch releasing position ‘Whenever the clutch " claim as new therein and desire to secure by Let
ters Patent is:
is not positively held engaged.
1. In a hoist of the character described, a
To manually engage the complemental clutch
frame structure including spaced bearings, a
of the drum and gear for driving the drum, and
cross shaft ?xedly mounted in said bearings, a
to retain them positively engaged, I provide the
cable winding drum and a driven, gear wheel
following means:
‘
revoluble on the shaft between the bearings; said
Formed diametrically through shaft l3, within
gear wheel being axially shiftable on the shaft
that‘ part that is enclosed by collar 33, is a slot‘
and there being complemental clutch elements on
or passage 50, and extended therethrough is a
the drum and gear Wheel adaptedv to be friction
disposed
to
engage
edgewise
at
its
?at bar 5|,
ally engaged and disengaged by the shifting of
seats
52
provided
in
the
collar
opposite ends, in
the gear wheelvin opposite directions,‘ a collar
30. The passage 50 is of such extentlengthwise
slidable on the shaft and secured in‘the'wheel
. of the shaft [3 as to allow the movement of the
hub for rotation of the wheel thereabout,‘ spring
bar therealong for the required clutch engaging
or disengaging movement’ of ‘the gear wheel I2
along the shaft. The adjacent end of shaft I3 is
means acting against the collar to move the wheel
'to disengage the clutch; said shaft having- a di—
2,405,156
5
ametric passage therein at the location of the
wheel hub and having an axial bore from one
end to said passage, a cross bar in the passage
seated at its ends against the said collar, and
pressure applying members disposed in the said
ing the gear wheel to engage the clutch elements
for driving the drum, and yielding means acting
on the collar to move the gear to disengage the
clutch elements upon the release of holding pres
sure by threading the cap outwardly on the shaft
bore and bearing against said cross bar and
end.
means threaded on the shaft against the said
4. In a hoist of the character described, a
members to shift the gear wheel for engaging the
frame structure including spaced bearings, a
clutch elements to drive the drum.
cross shaft ?xedly mounted in the bearings, a
2. In a hoist of the character described, a 10 cable winding drum and a driven gear Wheel
frame structure including spaced bearings, a
revoluble on the shaft between the bearings;
cross shaft ?xedly mounted in said bearings, a
said gear Wheel being shiftable on the shaft from
cable winding drum and a driven gear wheel
and toward the drum and there being comple
revoluble on the shaft between the bearings;
mental friction clutch elements on the drum and
said gear wheel being axially shiftable a limited
gear to be disengaged and engaged by such shift
distance on the shaft, complemental clutch ele
ing, a collar slidable 0n the shaft and ?xed, in
ments on the drum and gear wheel adapted to
the gear hub for rotation of the hub thereabout;
be engaged and disengaged by the shifting of
said shaft having a diametric slot thereth'rough
said gear wheel in opposite directions, a collar
at the location of the gear and having an axial
slidable on the shaft and secured in the wheel 20 bore from one end into said slot, a cap nut
hub for rotation of the hub thereabout, pull rods,
threaded onto that end of the shaft, a cross bar
with ends ?xed in said collar, extended along the
set in said diametric slot and seated at its ends
shaft and slidable through one of said frame
in said collar, a plurality of thrust bearing ele
bearings, springs acting against said bearing and
ments in end to end contact, located in the bore
rods to shift the gear wheel for disengaging the
and engaged with the cap and cross bar, a lever‘
clutch elements; said shaft having a longitudinal
for turning the cap to thread it onto the shaft to
slot diametrically therethrough and having an
effect an application of force, through said bear
axial bore from one end to said slot, a cross bar
ing elements, to the cross barfor shifting the gear
extending through the slot and seated at its ends
Wheel to engage the clutch elements for driving
in the collar, and a push rod contained in the 30 the drum, pull rods ?xed on the collar and ex
shaft bore and engaged with the cross bar, and
tended along the shaft and slidable through one
means threaded onto the shaft end against the
of the bearings, a plate ?xed to the rod ends,
push rod and adjustable to move the gear wheel
abutments onthe bearing and springs disposed
to engage the clutch elements to drive the drum.
under pressure between the abutments and plate
3. In a hoist of the character described, a 35 to urge the wheel outwardly to disengage the
frame structure including spaced bearings, a
clutch elements when holding pressure is re
cross shaft ?xedly mounted in the bearings, a
leased upon threading the cap outwardly on the
cable winding drum and a driven gear wheel
shaft end.
revoluble on the shaft between the bearings; said
5. In a hoist of the character described, a
gear wheel being shiftable 0n the shaft from and
frame structure including spaced bearings, a
toward the drum and there being complemental
cross shaft mounted at its ends in said bearings
’ friction clutch elements on the drum and gear to
and having an annular collar thereon, a drum
be disengaged and engaged by such shifting, a
revoluble on the shaft and having anti-friction
collar slidable on the shaft and ?xed in the
bearings ?tted in opposite ends of its hub por
gear hub for rotation of the hub thereabout; said
tion for support of the drum on the shaft; one of
shaft having a longitudinal slot, diametrically
said bearings being seated against said collar of
therethrough‘ at the location of the gear and
the shaft, a split sleeve adjustable along the
having an axial bore from one end opening into
shaft and engaged against the other bearing of
said slot, a cap threaded onto that end of the
the drum to cooperate with the annular collar to
shaft, a cross bar disposed in said diametric slot 50 hold the drum against movement along the
and seated at its ends against said collar, a plu
’ shaft, a nut on the shaft, adjustable against the
rality of push rods disposed in the bore in end to
outer end of the sleeve to hold it at a set position,
end contact between the cap and cross bar, a
handle for turning the. cap to thread inwardly
on the shaft to e?ect an application of force, 55
through said push rods, to the cross bar for shift
and said sleeve being seated by and clamped in
one of the frame bearings.
SIDNEY s. ‘MCINTYRE.
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