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Патент USA US3058627

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Oct. 16, 1962
P. H. CARTER ETAL
3,058,61 7
FEEDER FOR FLEXIBLE CONTAINERS
Filed Aug. 10, 1960
5 Sheets-Sheet 1
El'l______
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22
F|G.3.
FIG. 1.
INVENTORS
PAUL H. CARTER
RAYMOND L MORSE
BY
( )W/VYLQ/L/
ATTORNEY
‘ Oct. 16, 1962
P. H. CARTER ET AL
3,058,617
FEEDER FOR FLEXIBLE CONTAINERS
Filed Aug. 10, 1960
3 Sheets-Sheet 2
FIG.7.
INVENTQRS
PAUL H. CARTER
RAYMOND L. MORSE
“My?! }
JOM/W’w "
ATTORNEY
Oct. 16, 1962
P. H. CARTER ETAL
3,058,617
FEEDER FOR FLEXIBLE CONTAINERS
Filed Aug. 10, 1960
3 Sheets-Sheet 5
/////
IFIG.8.
FIG. 9. <
INVENTORS
PAUL H. CARTER
/
RAYMOND 1.. MORSE
__i
BYW‘); 2 I
ATTORNEY
United States Patent ()?ice
1
3,058,617
FEEDER FOR FLEXIBLE CONTAINERS
Paul H. Carter and Raymond L. Morse, Baltimore, Md.,
assignors to Universal Machine Co., Inc., Baltimore,
Md., a corporation of Maryland
Filed Aug. 10, 1960, Ser. No. 48,682
2 Claims. (Cl. 221-223)
This invention ‘relates to feeding devices and it is more
particularly concerned with a mechanism for feeding con
tainers, such as paper and plastic cups, tubs, etc., from a
nested stack of such containers to a machine for ?lling
them with a material or materials to be packaged.
An object of the invention is the provision of a con
tainer feeder of the type mentioned which can be mounted 15
on a ?lling machine and which can be actuated in syn
chronization with the action of the ?lling machine to feed
the containers from a stack thereof and deposit them at a
receiving station of the machine.
Another object of the invention is the provision of such
3,058,617
Patented Oct. 716, 1962
2
of vertical openings adapted to receive hollow cylindrical
inserts 19, 20 which are vertically aligned with a pair of
apertures 13, 13 when the loading wheel is in the resting
phase of its cycle of operation. The inserts 19, 20 com
prise passageways through which the containers pass from
a pair of nested stacks of containers 21 and 22,
respectively.
These containers are laterally supported in stacked posi
tion by means of a group of vertical guide rods 23 set
about the inserts 19 and 20.
The walls of the inserts 19 and 20 are provided with
groups of rubber cleats 24 and 25, respectively, which
project inwardly an amount sufficient to support the stacks
21, 22, respectively, without blocking the passage of the
cups through the openings 19, 20, one at a time, when the
cups are forceably ?exed against the cleats by a down—
ward force. This downward force is exerted by means of
pairs of oscillating rubber ?ngers 26, 27 and 28, 29, one
pair for each of the stacks, respectively.
The ?ngers 26 and 28 on one side are connected to a
a feeder that is positive in its operation, rugged in con
struction, and easy to install and to maintain in service.
A further object of the invention is the provision of such
rotatably mounted in suitable bearings 32, 33, 34 and 35,
a feeder which is constantly connected to a source of
36, 37, respectively.
power in synchronized relation to the ?lling machine, but 25
which can be declutched therefrom while the machine is
operating and again reclutched in the same synchronous
relation with the ?lling machine.
These and still further objects and advantages of the
invention will appear more fully from the following de 30
scription, including the accompanying drawing which illus
trates an embodiment of the invention by way of example
and not by way of limitation.
In the drawing:
FIG. 1 is a front elevational view of an embodiment of
the invention attached to a ?lling machine, the latter being
shown only fragmentarily.
rocker shaft 30 and the ?ngers 27 and 29 on the opposite
side are connected to a rocker shaft 31. These shafts are
The shafts 30 and 31 are provided with gears 38 and
39, respectively, which are geared to each other through
a pair of intermediate idler gears 40 and 41 mounted
on shafts 42 and 43, respectively, and journaled in the
block 16 on one side and in a side cover plate 44 on the
opposite side. (See FIG. 5.)
These gears are driven by a rack 45 mounted for verti
cal reciprocation which meshes with a pinion 46 in meshed
relation with gear 38.
The rack 45 is secured to a vertical shaft 47 which pro
jects upwardly in an aperture 48 of the block.
The upper end 49 of the shaft 47 is of reduced diameter
with a threaded end 50 for engaging a nut 51. Between
FIG. 2 is a top plan sectional view along the line 2-2
this nut and the shoulder 52 resulting from the reduction
of FIG. 1.
in diameter of the upper end 49, there is secured a clutch
FIG. 3 is a side elevational view of the embodiment with 40 block 53.
adjacent parts of the ?lling machine partly in section.
A countershaft 54 is slidably mounted parallel to the
FIG. 4 is a section along the line 4-4 of FIG. 1.
shaft 47 and extends upwardly through an aperture 55 in
FIG. 5 is a section along the line 5-5 of FIG. 4.
the clutch block 53. The countershaft 54 and clutch
FIG. 6 is an enlarged cross-sectional view along the line
block 53 are releasably connected together for coaction
6-6 of FIG. 4.
by means of a pin 60 slidably mounted in a cross channel
FIG. 7 is a sectional view along the line 7-7 of FIG. 6.
61 adjacent and at right angles to the aperture 55 and
FIG. 8 is a sectional view along the line 8-8 of FIG. 1.
engageable with an aperture 62 in the shaft 54.
FIG. 9 is a sectional view along the line 9-9 of FIG. 8. .
The pin 60 has an outer portion 63 of reduced diameter
Referring with more particularity to the drawing in
and it is biased to this engaging position by means of a
which like numerals designate like parts, the embodiment
coil spring 64 set between the shoulder 65 formed by the
is illustrated in reference to a container ?lling machine
reduced end portion :63 and a shoulder 66 formed by a
11 having a rotatably mounted horizontal loading wheel
diameter reduction at the end of the channel 61.
12 which is provided with apertures 13 for receiving the
A knob 67 is secured to the exposed end of the portion
containers to be ?lled. The ?lling machine alone, how
63 and it is provided with an o?'setting arm 68, the outer
ever, forms no part of the instant invention.
end of which is rabbeted to engage in one position a
A stationary wall 14 of the ?lling machine adjacent the
corner 69 of the block 53 (see FIG. 7). In another posi
wheel 12 is provided with a dovetail mounting lug 15 op
tion the outer edge of the arm 68, when rotated, is clear
posite the space between a consecutive pair of the aper
of the block 53 (see FIG. 6) whereby the spring 64 moves
tures 13 when the loading wheel 12 is in its stationary or
the pin 60 to engage the aperture 62 of the countershaft 54.
resting phase between intermittent rotational movements. 60
The lower end of the countershaft extends below the
The location of the lug 15 is in advance of the ?lling sta
block 16 and is secured to an arm 69 having a lug 70
tion (not shown) of the ?lling machine or of the initial
extending horizontally toward a reciprocating shaft 71 of
?lling station, if there are more than one, such as where a
the ?lling machine 11. The shaft 71 has a recessed por
plurality of materials are to be loaded into each container
tion 72 at the lower end which is adapted to receive the
successively.
65 lug 70 and hence connect the two shafts together for
A rectangular member 16 comprises the base of the
coaction.
embodiment and it is provided with a mounting bracket
The clutch block 53 and the upper ends of the shafts
17 at the rear side having a dovetail slot 18 comple
47 and 54 are provided with a cover plate 73 which is re
mentary to the lug 15. The bracket 17 is locked to the
movably held in place by a bolt 74.
lug 15 by means of a bolt 17A.
70
In operation, the containers are placed in the device by
The member 16 extends outwardly from the wall 14
stacking them within the guide rods 22, the stacks being,
over the loading wheel 12, and it is provided with a pair
as explained above, supported by the detents comprising
3,058,617
3
the rubber inserts 24 and 25. With the clutch in engaged
position the rubber ?ngers oscillate, as shown in FIG. 9,
thereby forcing the lowermost cups of the stacks down
wardly past the detents and projecting them downwardly
to the loading wheel 12 below. The action of the ?lling
machine is such that when the shaft 71 of the ?lling
machine moves downward, the loading wheel is in the rest
ing phase of its cycle.
4
said ?ngers simultaneously in opposite directions, and a
clutch mechanism for controlling the force transmitted
to the ?ngers, said clutch mechanism comprising a recip
rocating driving shaft and a reciprocating driven shaft, a
block ?xed to and carried by one of the shafts and means
for releasably locking the other shaft to the block.
2. A feeding device as de?ned in claim 1 in which the
means for releasably locking the shaft to the block com
prises a locking pin slidably mounted on the block for
Having thus described the invention, we claim:
1. A feeding device for flexible open-end conical con 10 movement between a locking position with the shaft and
a retracted position thereof, said shaft having an aperture
tainers comprising a base member having a vertical aper
ture therein for the passage of the container, detents in the
aperture for supporting a vertical stack of the containers in
nested form, said detents being positioned to ?ex and
thereby permit the passage of individual containers forced 15
through the aperture, opposed ?ngers rotatably mounted
below the detents, said ?ngers being positioned to co
actively grip a cup in the aperture supported by the detents
and force it through the aperture against the restraining
action of the detents, a power transmission for rotating 20
therein for receiving the pin in the locked position, yield
able means urging the pin to the locked position, and
means for holding the pin in retracted position against the
yieldable means.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,286,165
Balton _______________ __ June 9, 1942
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