U.S. patent number 3,792,765 [Application Number 05/233,178] was granted by the patent office on 1974-02-19 for apparatus for crushing containers and dispensing tokens.
This patent grant is currently assigned to Arnold W. G. Larson, Sheldon D. Moody. Invention is credited to Ewald A. Arp.
United States Patent |
3,792,765 |
Arp |
February 19, 1974 |
APPARATUS FOR CRUSHING CONTAINERS AND DISPENSING TOKENS
Abstract
Apparatus for crushing containers, such as metal cans, so that
the container material may be reused; and means for dispensing a
token signifying acceptance and crushing of a container having
predetermined physical characteristics. Control means, including a
container engaging sensing element, renders the token dispensing
means inoperative to dispense a token responsive to reception in
the crushing apparatus of a container having physical
characteristics other than those required by the apparatus, or to
the absence of a container in the crushing area of the
apparatus.
Inventors: |
Arp; Ewald A. (Hopkins,
MN) |
Assignee: |
Larson; Arnold W. G.
(Minneapolis, MN)
Moody; Sheldon D. (Minneapolis, MN)
|
Family
ID: |
22876215 |
Appl.
No.: |
05/233,178 |
Filed: |
March 9, 1972 |
Current U.S.
Class: |
194/209;
100/902 |
Current CPC
Class: |
B30B
9/321 (20130101); G07F 7/0609 (20130101); Y10S
100/902 (20130101) |
Current International
Class: |
G07F
7/00 (20060101); G07F 7/06 (20060101); G07f
007/06 () |
Field of
Search: |
;194/4,10,4C |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Tollberg; Stanley H.
Attorney, Agent or Firm: Merchant, Gould, Smith &
Edell
Claims
What is claimed is:
1. Apparatus for crushing containers comprising:
a. a frame structure;
b. a pair of crushing elements mounted in said frame structure, one
being moveable relative to the other thereof in a given path, said
crushing elements defining a container receiving space
therebetween;
c. container feeding means for feeding containers successively into
said space;
d. drive means for imparting feeding movements to said container
feeding means and crushing movements to one of said crushing
elements relative to other thereof;
e. token dispensing mechanism operative responsive to movement of
said one of the crushing elements to dispense a token for each
container crushed between said crushing elements;
f. control means including a container sensing element for
rendering said token dispensing mechanism inoperative responsive to
introduction into said space of any object other than a container
of predetermined physical characteristics;
g. and a movable gate element mounted in the frame structure for
movements into and out of the path of movement of said one of the
crushing elements between said crushing elements to engage a
container delivered to the space between said elements by said
feeding means and support the container in said path, said drive
means including mechanism for imparting said movements to the gate
element.
2. The apparatus defined in claim 1 in which said gate element
includes a container engaging bail normally disposed in spaced
apart relation to said crushing elements within said space, the
distance between said bail and said crushing elements being less
than the width of a given container but sufficient to permit
passage therebetween and one of said elements of an object of
lesser size than said given container.
3. The apparatus defined in claim 1 in which said drive means
includes a biasing member yielding urging said gate element toward
said space, said biasing member being disposed to yield
sufficiently to permit movement of said gate element out of said
space responsive to engagement of said gate element by an object in
said space of substantially greater weight than said container,
whereby to permit said object to fall through said space.
4. Apparatus for crushing containers comprising:
a. a frame structure;
b. a ram including a container engaging head mounted in said frame
structure for predetermined reciprocatory movement;
c. a platen facing said ram head;
d. collapsible means mounting said platen in said frame structure
for movement toward and away from a normal operative position
facing said ram head at a predetermined distance therefrom;
e. yielding means urging said collapsible means in a direction to
normally hold said platen in said operative position thereof with a
predetermined pressure greater than the pressure required to crush
a given container, the arrangement being such that the bias of said
yielding means imparted to said platen will be substanitally
reduced upon initial collapsing movement of said collapsible means
responsive to exertion of ram pressure against said platen greater
than said predetermined pressure;
f. container feeding means for feeding containers successively to
the space between said platens and ram head when said ram is moved
to a predetermined position remote from said platen;
g. a moveable gate element limiting movement of a container
delivered to said space;
h. drive means for imparting movement to said container feeding
means, ram and gate element, for successively feeding a container,
moving said ram in a container crushing direction toward said
platen, and moving said gate element out of the path of movement of
a container and away from said space;
i. token dispensing mechanism operative to dispense a token for a
given container crushed between said ram and platen;
j. and control means for dispensing mechanism comprising sensing
means mounted on said frame structure for movement into and out of
the space between said ram head and platen and engaging a container
of given physical characteristics to initiate token dispensing
operation of said dispensing mechanism, and means for imparting
said movements to said sensing means.
5. The apparatus defined in claim 4 in which said token dispensing
apparatus includes, a rotary feeding member, drive connections for
said feeding member and operatively associated with said ram to be
moved thereby in a feeding member driving direction, clutch means
for drivingly connecting said drive member with said feeding
member, clutch operating means, and control means for said clutch
operating means.
6. The apparatus defined in claim 5, in which drive connections
include shaft means journaled in said frame structure for
oscillatory movement, a crank arm on said shaft means operatively
engaged by said ram during reciprocatory movement of the ram to
impart movement to said shaft means in one direction of said
oscillatory movement thereof, and yielding means urging said shaft
means in the opposite direction of said oscillatory movement of
said clutch means comprising a pawl and ratchet one carried by said
shaft means and the other operatively coupled to said rotary
feeding member.
7. The apparatus defined in claim 6 in which said clutch operating
means comprises a solenoid and an electrical operating circuit
therefore, said pawl being operatively carried by said oscillatory
shaft means, said solenoid operatively engaging the said pawl.
8. The apparatus defined in claim 7 in which said control means for
the clutch operating means includes a switch in said operating
circuit, and container engaging sensing means operatively coupled
to said switch.
9. The apparatus defined in claim 1 in which said token dispensing
mechanism comprises:
a. a pair of token holders;
b. a pair of moveable token feeding members each disposed to
receive tokens from a different one of said holders;
c. drive means responsive to movements of said ram to impart
feeding movement to said feeding members selectively;
d. and electrically operated control means including a pair of
token engaging control switches each engaging the tokens of a
different one of said holders and each operative responsive to
absence of respective tokens to cause said drive means to impart
feeding movement to the feeding member receiving tokens from the
other holder.
Description
BACKGROUND OF THE INVENTION
At the present time, large quantities of different beverages are
sold in metal cans. Disposal of the cans, when emptied, presents a
problem due to the handling costs involved. In their usable form,
empty metal beverage cans occupy substantial space for the amount
of metal thereof, so that storage and transport to a recycling or
remanufacturing plant becomes a very costly and cumbersome
operation. Moreover, there is little, if any, incentive for the
average person to accumulate the bulky containers and periodically
deliver them to a collecting area.
SUMMARY OF THE INVENTION
An important object of this invention is the provision of apparatus
for crushing or flattening containers such as, for instance, metal
cans, so that they occupy a minimum space.
Another object of this invention is the provision of container
crushing apparatus having mechanism for dispensing a token of value
for each container of a given type accepted by the apparatus.
Yet another object of this invention is the provision of control
means for rendering the token dispensing mechanism inoperative when
containers other than those having given physical characteristics,
such as size, shape and weight, are introduced to the crushing
apparatus.
Another object of this invention is the provision of apparatus as
set forth, which is compact in size, relatively simple and
inexpensive to produce, and rugged in construction, and efficient
and durable in use.
To the above ends, I provide frame structure supporting a power
driven ram for movements toward and away from a cooperating platen
for crushing or flattening a container introduced to the space
between the ram and the platen. A rotary container feeding member
is disposed to feed containers in succession to said space in timed
relationship to movement of the ram. A receiver is disposed below
said space, and an ejector is provided to urge crushed containers
toward the receiver. The platen is mounted for limited movements
toward and away from the ram and is yieldingly urged toward the
same with a force initially greater than that required to normally
crush or flatten a given container. When a non-crushable object is
subjected to ram pressure, the platen will yield. A token dispenser
is operative to issue a token to the user with each container of
predetermined physical characteristics accepted and crushed by the
ram. Control means is operatively connected to the token dispensing
mechanism for rendering the same inoperative whenever a container,
other than one for which the machine is intended, is presented to
the machine.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view in perspective of a container crushing and token
dispensing apparatus produced in accordance with this invention, a
portion being broken away and shown in section;
FIG. 2 is an enlarged fragmentary view in side elevation, as seen
from the line 2--2 of FIG. 1, some parts being removed;
FIG. 3 is an enlarged fragemntary view partly in side elevation and
partly in section, as seen from the line 3--3 of FIG. 1, some parts
being removed;
FIG. 4 is a fragmentary view in end elevation, as seen from the
right to the left of FIG. 2;
FIG. 5 is a view in bottom plan of the mechanism illustrated in
FIG. 2;
FIG. 6 is an enlarged fragmentary section taken on the line 6--6 of
FIG. 5, turned end for end and inverted;
FIG. 7 is an enlarged fragmentary section taken generally on the
line 7--7 of FIG. 5;
FIG. 8 is an enlarged fragmentary section taken substantially on
the line 8--8 of FIG. 3;
FIG. 9, sheet 1, is an enlarged fragmentary section taken
substantially on the line 9--9 of FIG. 5;
FIG. 10, sheet 1, is a fragmentary detail in section, taken on the
line 10--10 of FIG. 9;
FIG 11, sheet 2, is an enlarged fragmentary detail corresponding to
a portion of FIG. 2;
FIGS. 12 and 13, sheet 2, are enlarged fragmentary details taken on
the lines 12--12 and 13--13 respectively of FIG. 2;
FIG. 14, sheet 3, is a fragmentary transverse section taken on the
line 14--14 of FIG. 6;
FIG. 15, sheet 3, is a view in perspective of the container
crushing ram of this invention;
FIG. 16, sheet 4, is a view in perspective of a slide member;
FIG. 17, sheet 7, is a view in perspective of the token dispensing
unit of this invention;
FIG. 18 is an enlarged fragmentary transverse section taken
substantially on the line 18--18 of FIG. 17;
FIG. 19 is an enlarged fragmentary section taken substantially on
the line 19--19 of FIG. 18;
FIG. 20 is a transverse section taken substantially on the line
20--20 of FIG. 19;
FIG. 21 is a fragmentary section taken substantially on the line
21--21 of FIG. 19;
FIG. 22, sheet 7, is a fragmentary detail in section, taken
substantially on the line 22--22 of FIG. 19; and
FIG. 23, sheet 4, is a wiring diagram.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The embodiment of the apparatus shown in the drawings and
hereinafter described, is intended to crush or flatten metal cans
in present day use as beverage containers. Some of these containers
are intended to be opened by piercing at one end thereof, others
being scored in one end to provide a pullout portion which defines
an opening in the container end. After being emptied, the
containers are normally thrown away. Due to immense quantities of
these types of containers in present day use, disposal thereof has
become a nationwide problem, and has resulted in a substantial
waste of reusable material.
With reference to FIG. 1, it will be seen that the apparatus of
this invention is enclosed in a generally rectangular housing,
indicated generally at 1 and including a pair of top wall sections
2 and 3, opposite end walls 4, one of which is shown in FIG. 1, and
front and rear walls, the former being indicated at 5, the latter
not being shown. The front wall 5 is provided with an opening that
is normally closed by a door 6 hinged at its upper edge to the
front wall 5, as indicated at 7, and provided with a handle 8.
Between the top wall sections 2 and 3, the housing 1 is formed to
provide an open topped ramp 9 designed to support and feed
containers, such as metallic cans 10 to the interior of the housing
1. Further, the housing 1 is formed to provide a recess 11 for a
casing 12 which houses token or stamp dispensing mechanism
hereinafter described. An open topped receiver 13 is disposed in
the lower portion of the housing 1 behind the door 6 and removable
from the housing 1 when the door 6 is opened.
CAN CRUSHING MECHANISM
A rigid generally rectangular frame structure 14, suitably mounted
within the housing 1, comprises a pair of laterally spaced parallel
longitudinal plate-like frame members 15 and 16 disposed in
vertical planes, vertically disposed cross-frame members 17 and 18,
and horizontally disposed plate-like cross-frame members 19, 20 and
21. The frame structure 14 further includes a motor mounting
bracket 22 bolted or otherwise rigidly secured to the cross frame
member 17, and on which is rigidly mounted a drive motor 23 having
a drive shaft 24.
The motor 23 imparts reciprocatory movement to a container engaging
and crushing ram 25 comprising a flat head 26, a pair of laterally
spaced parallel plate-like side portions or wings 27 and 28, and a
generally horizontally disposed transverse connecting portion 29.
The wings 27 and 28 longitudinally slidably engage the opposed
inner surfaces of the side frame members 15 and 16 respectively,
and are provided with bearing lugs 30 and 31 that are
longitudinally slidably moveable in respective slots 32 and 33 in
each of the side frame members 15 and 16. The ram head 26 is formed
to provide laterally spaced flanges 34 having aligned openings 35
for reception of a wrist pin 36 that also extends through aligned
openings in laterally spaced portions of a crosshead 37 rigidly
secured to one end of an elongated connecting rod 38. At its
opposite end, the connecting rod 38 is journalled on a crank pin 39
projecting laterally from a disk-like crank element 40 rigidly
mounted on the side frame member 15. An endless link chain 43 in
entrained over a sprocket wheel 44 mounted fast on the shaft 41,
and another sprocket wheel 45 mounted fast on one end of a jack
shaft 46 journalled in a bearing 47 that is bolted or otherwise
rigidly mounted on the side frame member 15. A gear 48 is rigidly
mounted on the jack shaft 46, and has meshing engagement with a
drive pinion 49 mounted on a drive shaft extension 50 journalled in
a bearing 51 also bolted or otherwise rigidly secured to the side
frame member 15. The drive shaft extension 50 is substantially
axially aligned with the drive shaft 24 of the motor 23 and
connected to the drive shaft 24 by means of a commercially
available shaft coupling 52. The relative sizes of the gear 48 and
pinion 49 and those of the sprocket wheels 44 and 45 are such that
the shaft 41 and crank element 40 are driven at a substantially
lower speed than that of the motor drive shaft 24.
The ram 25, during its reciprocatory movement within the frame
structure, cooperates with a rigid platen 53 to crush or flatten
metallic cans. The platen 53 extends transversely between the side
edges with a pair of laterally spaced parallel plate-like side
members 54 each disposed closely adjacent a different one of the
side frame members 15 and 16. Pairs of upper and lower guide screws
55 and 56 respectively are suitably mounted in the frame structure
14, and have opposing ends which are closely spaced from the upper
and lower edges respectively of the side members 54 to aid in
guiding the ram 53 for movements longitudinally of the frame
structure 14. The platen 53 is mounted in the frame structure for
movements toward and away from the ram 25 by toggle linkage 57
including a toggle link 58 pivotally secured at one end to the
platen 53, as indicated at 59, and a pair of toggle links 60
pivotally secured at one end to the opposite end of the link 58, by
means of a pivot pin 61, the opposite ends of the links 60 being
pivotally secured to a bracket 62 by means of a pivot pin 63. The
bracket 62 is bolted or otherwise rigidly secured to the cross
frame member 21, see particularly FIG. 9. As is customary in toggle
linkages, the pivot pins 59, 61 and 63 are disposed on parallel
axes, these axes being preferably generally horizontal and
extending transversely of the direction of movement of the ram 25.
Movement of the platen 53 toward the ram 25 is limited by a
downturned flange 64 on the cross frame member 20 and by a pair of
stop fingers 65 each mounted on a different one of the side frame
members 15 and 16, by screws 66, and having portions engaging a
cooperating plate-like stop member 67 bolted or otherwise rigidly
secured to the platen 53, see particularly FIG. 9. As there shown,
the toggle links 58 and 60 are yieldingly urged in a direction to
move the platen 53 into engagement with the flange 64 and stop
fingers 65 by a plurality of coil tension springs 67 each having
one end anchored to a vertical partition 68, by means of machine
screws or the like 59, the opposite ends of the springs 67 being
secured to a transverse pin 70 extending transversely through one
end of a pair of links 71, the opposite ends of the links 71 being
secured to the pivot pin 61. A stop member or screw 72 is screw
threaded in a nut 73 welded to the partition 20, the stop screw 72
having a lower end engaging the adjacent end portion of the toggle
link 58 to limit swinging movements thereof in a platen advancing
direction. As shown in FIG. 9, when the link 58 engages the top
screw 72, the links 58 and 60 are slightly offset from dead center
relationship. The disposition of the toggle links 58 and 60 in
their full line positions of FIG. 9, together with the tension
exerted thereon by the springs 67, causes the platen 53 to
withstand pressure thereagainst substantially greater than is
required to crush or flatten a given can 10. However, should the
ram 25 engage a foreign uncrushable object, such as a stone or
block of wood, not shown, and move the same against the platen 53,
the toggle links 58 and 60 will collapse toward their dotted line
positions of FIG. 9, against bias of the springs 67, and prevent
injury to the ram operating mechanism. It will be appreciated that,
once initial movement is imparted to the platen 53 to initiate
collapsing movement of the toggle links 58 and 60, the pressure
required to effect full collapse of the toggle links almost
immediately decreases very substantially. As soon as the ram 25
moves away from the platen 53 and returns to its retracted
position, the springs 67 will move the platen 53 to its full line
position of FIG. 9, and the non-crushed object will be allowed to
drop downwardly from between the ram and platen.
A can feeding rotor 74, defining a plurality of circumferentially
spaced radially outwardly opening can receiving recesses 75, is
mounted on a shaft 76 for rotation between a pair of vertical walls
or partitions 77 and 78 extending upwardly from the frame structure
14, the rotation 74 being disposed on a transverse horizontal axis
overlying the space between the ram 25 and platen 53, and disposed
to receive cans 10 from the ramp 9, as shown in FIGS. 2 and 3. With
reference to FIG. 3, it will be seen that one end of the shaft 76
is disposed within an adjustable braking member 79 that is mounted
on the adjacent wall or partition 78 by means of a mounting screw
80, whereby to prevent overrunning of the feeding rotor 74 as can
feeding rotation is imparted thereto.
Intermittent feeding rotation is imparted to the feeding rotor 74
in a direction to deliver cans 10 successively from the ramp 9 to
the space between the ram head 26 and platen 53 by a ratchet 81 and
cooperating pawl 82, the former being keyed or otherwise rigidly
mounted on one end of the rotor shaft 76, the pawl 82 being in the
nature of an elongated toothed bar pivotally secured at one end, by
means of a pivot pin 83, between a pair of plate-like mounting
members 84 journalled on the shaft 76 at opposite sides of the
ratchet 81. As shown in FIGS. 11 and 12, the ratchet 81 is mounted
on a hub 85 that is pinned or otherwise rigidly secured on the
shaft 76, the mounting members 84 being connected at spaced points
by spacer equipped connecting screws or the like 86. The pawl 82 is
yieldingly urged into engagement with the teeth of the ratchet 81
by a coil tension spring 87, see particularly FIG. 11. Oscillatory
movement is imparted to the mounting members 84 and pawl 82 is a
direction to impart feeding rotation to the rotor 74 by a coil
tension spring 88 secured at one end to the frame structure 14 and
at its other end to one arm of a bell crank lever 89 journalled on
a stub shaft 90 that is mounted on the longitudinal frame member
15, see particularly FIG. 2. Said one arm of the bell crank lever
89 has it outer end pivotally connected to one end of an elongated
rigid rod 91 having a downwardly curved end portion 92 that is
pivotally connected to the mounting members 84, as indicated at 93
in FIGS. 2 and 11. Rotary feeding movement of the rotor 74 is
limited by engagement of the free end 94 of the pawl 82 with an
adjustable stop member 95 secured to a mounting block 96 that is
bolted or otherwise secured to the adjacent partition or wall 77.
The bell crank 89 includes an arm 97 that is provided at its outer
end with a roller 98 that has rolling engagement with the
peripheral cam surface of a cam 99 keyed or otherwise rigidly
mounted on the outer end of the shaft 41. Rotation of the cam 99
imparts movement to the bell crank 89 in a direction against bias
of the spring 88 to move the rod 91 and pawl 82 in a return
direction of oscillatory movement of the mounting members 84 and
pawl 82. The arrangement is such that for each full rotation of the
cam 99, the pawl 82 partakes of a complete cycle of oscillatory
movement, one half cycle imparting feeding rotation to the ratchet
81 and feeding rotor 74, the other half cycle being a return
movement. It should be here noted that, not only does the brake 79
prevent overrunning of the feeding rotor 74, but also frictionally
holds the same against rotation in an opposite direction during
return movement of the pawl 82 from its dotted line position of
FIG. 11 to its full line return position thereof.
Means for supporting a can 10 in the space between the ram head 26
and platen 53 comprises a moveable gate element in the nature of a
generally U-shaped bail 100 including a central portion 101 that
extends transversely between the side frame members 15 and 16, and
side arm portions 102 having inner ends that are rigidly connected
one to one end of a bell crank lever 103 and the other to a rigid
arm 104 that is pivotally secured to the interior of the side frame
member 16, see particularly FIG. 7. The bell crank lever 103 is
pivotally mounted intermediate its ends to a mounting block 105
that is bolted or otherwise rigidly secured to the opposite side
frame member 16, see FIG. 6. The pivotal connections of the arm 104
and bell crank lever 103 are on aligned axes, so that the gate
element 100 swings between an operative can supporting position,
shown by full lines in FIGS. 6 and 7, and an inoperative position
shown by dotted lines in FIG. 7. An elongated coil tension spring
106 is connected at one end to the connection between the gate
element 100 and bell crank lever 103, and at its other end to one
of the stop fingers 65 to yieldingly urge the gate element 100
toward its operative can supporting position.
Means for moving the gate element 100 from its operative can
supporting position to its inoperative position out of the path of
travel of the ram 25, and against bias of the spring 106, comprises
a thrust bar 107 extending longitudinally of the direction of
travel of the ram 25, and a cooperating slide member 108, see
particularly FIG. 6. The thrust bar 107 has one end rigidly
connected to a support bar 109 that is bolted to the wing 27 of the
ram 25, the opposite end of the thrust bar 107 defining a sloping
cam surface 110. The thrust bar 107 is adapted to move
longitudinally through a passageway 111 in the mounting block 105,
and slidably engage a similar sloping cam surface 112 on the lower
end of the slide member 108, the slide member 108 being vertically
disposed in a generally vertical passageway 113 in the mounting
block 105. The upper end of the slide member 108 engages an arm 114
of the bell crank 103 to impart swinging movements thereto and to
the gate element 100 responsive to upward movement of the slide
member 108, caused by camming engagement of the surface 110 with
the cooperating surface 112. It will be appreciated that the face
of the ram head 26 engages a can 10 supported by the gate element
100 simultaneously with engagement of the cam surface 112 of the
slide member 108 by the cam surface 110 on the thrust bar 107, so
that, as the ram 25 moves further toward the platen 53, the gate
element 100 is swing downwardly out of the path of travel of the
ram head 26.
In FIG. 6, a can 10 is shown by dotted lines as being crushed or
flattened between the ram head 26 and platen 53. Normally, when the
ram 25 is retracted away from the platen 53, the flattened can
drops by gravity downwardly into the receiver 13 underlying the
space between the ram 25 and platen 53. In many cases, cans 10 with
paper labels on them become wet and tacky, and tend to adhere to
the ram head 26 or platen 53 as the ram 25 is retracted. For this
reason, I provide an ejector element in the nature of a resilient
plate-like member 115 that is mounted on the connecting portion 29
of the ram 25 and rigidly secured at one edge to the connecting
portion 29 as by the use of machine screws or the like. The
opposite side edge of the ejector 115 is downturned to provide a
flange or lip 116 that engages the can 10 as it is flattened. As
shown by dotted lines in FIG. 6, the flattened can 10 bends the
ejector 115 upwardly to produce a downward yielding bias thereon.
Then, as the ram 25 begins to retract away from the platen 53, the
resilient ejector 115 forces the flattened can 10 downwardly out of
engagement with either the platen 53 or ram head 26. It will be
appreciated that, when the ram 25 moves in a direction away from
the platen 53, and the thrust bar 107 recedes from the passageway
111, the spring 106 will move the gate element 100 into its
operative position shown in FIG. 6 and by full lines in FIG. 7, the
bell crank lever 103 moving the slide member 108 downwardly in its
passageway 113 so that the cam surface 112 is again disposed in the
passageway 111.
TOKEN DISPENSING MECHANISM
The casing 12 of the token dispensing apparatus of this invention
comprises inner and outer side walls 117 and 118 respectively, a
bottom wall 119, end walls 120 and 121, a top wall portion 122, a
vertical wall portion 123 projecting upwardly from the top wall
portion 122 intermediate the end walls 120 and 121, and a cover
element 124. The cover element 124 is hinged to the end wall 121,
as indicated at 125, and is held in a closed position by means of a
conventional lock 126, shown fragmentarily in FIG. 17. A second
lock 127, also shown fragmentarily in FIG. 17, is utilized to lock
the casing 12 in position on the housing 1, in any suitable manner,
not shown.
The tokens dispensed by the mechanism within the casing 12 are in
the nature of stamps 128 that are supplied in a pair of rolls 129
thereof, each roll 129 being journalled on a different one of a
pair of mounting shafts 130. Each mounting shaft 130 is provided
with an axial stud 131 that extends through a suitable opening in
an adjacent one of a pair of partitions 132 and 133 disposed in
spaced parallel relationship to a respective one of the side walls
117 and 118, see particularly FIGS. 18 and 20. The shafts 130 are
releasably held in place by washer-equipped locking nuts or the
like 134 screw threaded on the studs 131.
Dispensing mechanism for feeding stamps 128 from a selected one of
the rolls 129 thereof comprises a rock shaft 135 disposed normal to
the partitions 132 and 133 and journalled in bearings 136 mounted
in the partitions 132 and 133, a plate-like drive member 137
rigidly mounted on the rock shaft 135 by means of a set screw 138,
a pair of ratchet members 139 and 140 having elongated tubular hubs
141 and journalled on the shaft 135 at axially opposite sides of
the drive member 137, a pair of pawls 142 and 143, and two pairs of
disc-like stamp-feeding elements 144 and 145, the feeding elements
144 being rigidly mounted on the hub 141 of the ratchet 139, and
the feeding elements 145 being rigidly mounted on the hub 141 of
the ratchet 140 for common rotation therewith. Each of the feeding
elements 144 and 145 is provided with a plurality of
circumferentially spaced radially outwardly projecting points 146
that are adapted to be received in cooperating longitudinally
spaced pairs of laterally spaced openings 147 in the stamps 128 to
impart positive feeding movement to the stamps 128 responsive to
rotation of their respective ratchets 139 and 140. As shown in FIG.
21, the pawls 142 and 143 are pivotally mounted, by means of a
pivot pin 148 on opposite sides of the drive member 137, and are
yieldingly urged toward engagement with the teeth of the ratchets
139 and 140 respectively by coil tension springs 149. Further, each
ratchet 139 and 140 is provided with a respective cam portion 150
that is engaged by an individual one of a pair of resilient fingers
151 to prevent overrunning of their respective ratchets 139 and 140
when stamp feeding rotation is imparted thereto. The fingers 151
are also effective in preventing reverse movement of the ratchets
139 and 140 during oscillatory movement of the drive member 137 in
a direction opposite that of feeding movement thereof. Each of the
pairs of rotary stamp feeding elements 144 and 145 is provided with
an arcuate guide member 152, one of which is shown in FIG. 19. Each
guide member is pivotally mounted on a different one of a pair of
stub shafts 153 that projects laterally inwardly from an adjacent
one of the partitions 132 and 133. The opposite end of each guide
member 152 is releasably secured to another one of a pair of
laterally inwardly projecting stub shafts 154 similar to the shafts
153, by means of spring clips 155, one of which is shown in FIG.
19. Adjacent the stub shafts 154, elongated guide elements 156
strip the stamps from their respective feeding elements 144 and 145
and guide the same upwardly through the top wall portion 122 of the
housing 12.
Means for imparting rocking movements to the rock shaft 135
comprises a second rock shaft 157 disposed above the shaft 141 and
journalled in a bearing bracket 158 secured to the cross frame
member 19, see FIG. 7. The rock shaft 157 extends laterally
outwardly through an opening in the side frame member 16, and
through an opening in the inner side wall 117 of the casing 12, and
has tongue and groove engagement with the adjacent end of the rock
shaft 135, as indicated at 159 in FIG. 20. A torsion spring 160
yieldingly urges the rock shaft 157 in a direction of rocking or
oscillatory movement, said direction being the direction of return
movement of the drive member 137. At its opposite or inner end,
between the side frame members 15 and 16, the rock shaft 157 is
provided with a crank arm 161 having journalled to its outer end a
roller 162, see particularly FIG. 7. The roller 162 is engaged by
the crank pin equipped end of the connecting rod 38 to inpart
rocking movement to the shafts 157 and 135 in one direction against
bias of the torsion spring 160, and as shown by full and dotted
lines in FIG. 7. As the shaft 41 rotates in a clockwise direction
with respect to FIG. 7, the crank pin equipped end of the
connecting rod 38 moves laterally outwardly and downwardly with
respect to the roller 162 and the torsion spring 160 rocks the
shafts 157 and 135 and crank 161 to the normal or return position
of the crank 161 shown by full lines in FIG. 7. It should here be
noted that movement of the crank 161 between its full and dotted
line positions of FIG. 7 is sufficient to cause rotation of a
selected one of the ratchets 139 and 140 to a degree that will
issue one stamp 128 from the guide elements 156.
The stamp dispensing mechanism within the housing 12 is arranged so
that stamps are dispensed from one roll 129 thereof until that roll
is exhausted, after which stamps are automatically dispensed from
the opposite roll 129. To accomplish this purpose, one of the pawls
142 and 143 is rendered inoperative to engage its respective
ratchet 139 and 140 while being oscillated together with the drive
member 137 on which the pawl 142 and 143 are mounted. In the
arrangement illustrated, the pawl 142 is operative, the pawl 143
being temperarily inoperative. Actuating means for the pawls 142
and 143 comprises a pair of actuating spools 163 and 164 that are
mounted for axial sliding movements on aligned shaft 165 extending
laterally inwardly from the partitions 132 and 133 in underlying
parallel relationship to the rock shaft 135. Each of the spools 163
and 164 is formed to provide an enlarged head at its inner end,
each of the enlarged heads defining a relatively deep
circumferential channel 166 and a relatively shallow
circumferential channel 167, the channels 166 and 167 being
disposed to selectively receive an elongated finger 168 on a
respective one of the pawls 142 and 143. As shown in FIG. 20, the
spool 163 is positioned so that the finger 168 of the pawl 142 is
disposed to be received in the channel 166 of the spool 163, the
spool 164 being positioned so that the finger 168 of the pawl 143
is aligned with and received in the shallow channel 167 of the
spool 164. The actuator spools 163 and 164 are moved between their
pawl operative and pawl inoperative positions by a pair of
respective T-shaped levers 169 and 170 respectively that are
mounted on pivot pins 171 carried by a frame member 172. The lever
169 overlies a pair of solenoids 173 and 174 carried by the frame
member 172, the lever 170 overlying the solenoid 174 and another
solenoid 175, as shown in FIG. 20. In FIG. 20, the solenoid 173 is
energized so that the armature 176 thereof moves the lever 169 in a
direction to align the channel 166 of the spool 163 with the finger
168 of the pawl 142. In this position of the actuating spool 163,
the spring 149 of the pawl 142 is enabled to move the pawl 142 into
operative engagement with its respective ratchet 139, so that the
feeding element 144 operates to feed stamps 128. At the same time,
the solenoid 175 is de-energized so that the spool 164 is
positioned to align the shallow groove 167 thereof with the finger
168 of the pawl 143 to hold the pawl 143 out of engagement with its
respective ratchet 140. The solenoid 174 is a cancelling solenoid
for both levers 169 and 170, as will be hereinafter described. As
shown in FIGS. 19-21, the drive member 137 is formed to provide a
radially outwardly projecting flange 177 that is disposed between
the adjacent enlarged inner end of the spools 163 and 164, and at
one end thereof is formed to provide cam surfaces 178 at the
opposite sides thereof for engagement with said adjacent ends of
the spools 163 and 164. As the drive member 137 approaches the
limit of its oscillatory movement in a stamp feeding direction, the
fingers 168 move out of their respective channels 166 or 167 in a
direction to align their respective channels 167 with their
respective fingers 168. Then, as the drive member 137 oscillates in
the opposite direction, the energized solenoid 173 moves its
respective spool 163 to a position wherein its channel 166 receives
its respective finger 168 of the pawl 143, permitting the spring
149 thereof to move the pawl 143 into operative engagement with its
respective ratchet member 139. When the cancelling solenoid 174 is
energized, both pawls 142 and 143 will be rendered inoperative to
engage their respective ratchet members 139 and 140.
The solenoids 173 and 175 are disposed in an electrical circuit
which, for the purpose for the present example, is shown in FIG. 23
as being connected to a pair of power leads 179 and 180, the latter
thereof being grounded. The solenoids 173 and 175 are disposed in
parallel relationship in a lead 181 having a portion 182, the
solenoid 173 being disposed in series with one side of a double
throw switch 183, the solenoid 175 being disposed in the lead 182
in series with a second double throw switch 184. Also interposed in
the lead 181 in series with the solenoid 173 and 175 are a manually
operated main switch 185, a door operated safety cut-off switch
186, a cam operated switch 187, and a sensor operated switch 188.
The switches 183 and 184 are operated by an actuator lever 189
shown diagrammatically in FIG. 23 and which may be assumed to be
pivotally mounted in the housing 1 or casing 12, by means of a
pivot pin 190 shown in FIG. 23. The actuator lever 189 is disposed
between the switches 183 and 184 and is moved between operative
engagement with said switches by a pair of actuator solenoids 191
and 192, one end of the lever 189 having a pin and slot connection
193 with an armature 194 that is adapted to be reciprocally
moveable in opposite directions by the coils of the solenoids 191
and 192. The opposite end of the lever 189 is operatively engaged
by a spring pressed detent roller 195 to releasably hold the
actuator lever 189 in either of its switch engaging positions. It
should be here noted that the door operated switch 186 is a
normally open interlock switch, and is closed by closing of the
housing door 6 so that when the door is open, electrical current to
the machine is shut off. The switch 187 is normally open, and is
closed during a portion of travel of the ram 25, by means of a cam
element 196 mounted on the cam 99, see particularly FIG. 2. The
switch 188 is a normally closed switch and is opened by other means
hereinafter to be described.
CONTROL MECHANISM
The solenoids 191 and 192 are operated by respective ones of a pair
of relays 197 and 198 each including a double throw switch 199 and
200, respectively. Operation of the relays 197 and 198 is
controlled by a respective pair of switches 201 and 202. The
switches 201 and 202 are spring closed and are provided with
actuator members 203, each of which engages a strip of stamps 128
at a point where the strips of stamps tangentially engage a
respective one of a pair of circumferentially channeled rolls 204.
As shown in FIGS. 19-21, the rolls 204 are journalled on stub
shafts 205 that are carried by adjustable clamping devices 206
mounted on the partitions 132 and 133. As shown particularly in
FIG. 22, the actuator member 203 of switch 201 is disposed radially
outwardly of the channel of the adjacent roll 204, the strip of
stamps 128 engaging the actuator 203 of switch 201 to hold the
switch 201 in an open position. The actuator 203 of the opposite
switch 202 is engaged by its respective strip of stamps 128 to hold
its respective switch 202 in an open position in the same manner.
As shown, switch 201 is carried by a bracket 207 mounted on the
partition member 132, the switch 203 being carried by similar
bracket 207 that is mounted on the partition element 133. With
further reference to FIG. 23, it will be seen that the switches 201
and 202 also control operation of a pair of signal lamps 207 that
may be strategically placed on either the housing 1 or casing 12 to
indicate that one or the other rolls 129 of stamps 128 is
exhausted, and that a new supply roll should be installed on a
respective one of the shafts 130.
The relays 197 and 198 control operation of the motor 23 through
the switches 199 and 200 in one position thereof, and a switch 208
controlled by the coil of a time delay relay 209, the switches 199
and 200, and the time delay relay 209 being interposed in a lead
210 connected to the lead 181 and the motor 23. The switches 201
and 202 are connected to the lead 210 and to the coils of
respective ones of the relays 197 and 198. Energization of either
of these relays causes energization of a respective one of the
solenoids 191 and 192 to shift the armature 194 thereof and swing
the actuator lever 189 from a position to de-energize one of the
solenoids 173 and 175 and energize the other thereof. The solenoid
191 is connected to the switch 184 and the solenoid 192 is
connected to the switch 183, by respective leads 211 and 212.
The embodiment of the invention illustrated, as above indicated, is
intended to issue a token in the nature of a stamp 128 only when
cans of a given size, weight and design are crushed in the machine.
For the purpose of controlling the token dispensing mechanism to
dispense a token or stamp 128 only when beverage cans having at
least a substantial portion of both ends intact, are crushed in the
machine, a sensing device for controlling the switch 188 is
provided. The sensing device comprises a pair of sensing arms 213
each pivotally mounted on a different one of a pair of brackets
214, as indicated at 215, and having a pair of sensing fingers 216
moveable laterally inwardly through the slots 33 in the side frame
members 15 and 16. Pairs of elongated rods 217 are pivotally
connected at one of their ends to each of the sensing arms 213 by
pivot pins 218, and at their opposite ends to a different one of a
pair of cross-heads 219 adjacent the outer surfaces of respective
side frame members 15 and 16. A pair of coil tension springs 220
are each connected at one end to a different one of the cross-heads
219 and at their opposite ends to one of a pair of bell crank
levers 221 each pivotally mounted on a different one of the side
frame members 15 and 16. Each of the bell crank levers 221 are
connected to a respective one of a pair of bifurcated crank arms
222 by rigid links 223, see particularly FIGS. 2, 3 and 5. As shown
in FIG. 3, one of the cross-heads 219 is adapted to engage and move
a switch actuator 224 operatively associated with the normally
closed switch 188 that is mounted on the side frame member 16 by
means of a bracket or the like 225. The crank arms 222 are rigidly
mounted on opposite ends of a transverse shaft 226 that is
journalled adjacent its opposite ends in the side frame members 15
and 16. Intermediate its ends, the shaft 226 is provided with
another crank arm 227 the outer end of which is connected to one
end of a coil tension spring 228. The opposite end of the spring
228 is anchored by a bolt 229 screw threaded into the side frame
member 16, see FIGS. 5 and 7. Spring imparted pivotal movement of
the shaft 226 is limited by engagement of the lower edge of the
side frame member 16 with a stop lug or roller 230 mounted on the
outer end of a stop bar 231 the inner end of which is rigidly
mounted on the shaft 226.
The shaft 226 is rotated in a direction to cause the sensing
fingers 216 to move toward each other through their respective
slots 33 and into the space normally occupied by a container 10, by
means of a cam 232 keyed or otherwise rigidly mounted on the shaft
41, the cam 232 engaging a cam follower roller 233 on the outer end
of a lever 234 that is rigidly mounted on the shaft 226, see
particularly FIGS. 5 and 6.
The cam 232 is positioned on the shaft 41 in definite angular
relationship with respect to the crank pin 39 and is so shaped tha
the sensing fingers 216 are moved into the space between the ram
head 26 and platen 53 as the ram 25 begins its forward motion
toward the platen 53, and withdrawn from the space before being
touched by the ram head 26. If the space is occupied by a container
10, supported by the bail 100, the inner ends of the sensing finger
216 will engage opposite ends of the container and be held thereby
against further inward movement. The rods 217 being rigid, the
cross heads 219 will be moved longitudinally of the machine only as
far as permitted by the sensing fingers 216. Further rotary
movement of the shaft 226, imparted thereto by the cam 232, will
result in the springs 220 stretching until the limit of rotary or
rocking movement of the shaft 226 is reached. It should here be
noted that, when an acceptable can or container is disposed in the
space between the ram head 26 and platen 53 and engaged by the
inner ends of the sensing fingers, the cross-head 219 adjacent the
switch actuator 224 will remain out of engagement with the actuator
224 and the switch 188 will remain closed to energize a given one
of the stamp feeding control solenoids 173 and 175. However, when
no container 10 is fed to the space between the ram and platen, or
when a container having one open end is fed to the space, one of
the sensing fingers 216 will enter the open end of the can,
permitting both sensing fingers 216 to move laterally inwardly to
an extent that the cross-head 219 adjacent the switch 188 will
engage the actuator 224 and open the switch 188 to de-energize the
operating one of the solenoids 173 or 175, so that no stamp will be
issued by the token dispensing mechanism. Should a container having
an open end be fed to the machine, the container will be crushed
but, being a type of container not desired, no stamp will issue. It
should be apparent that, when the main switch 185 and door operated
switch 186 are closed, the motor 23 will operate to impart
continuous reciprocatory movement to the ram 25, even though no
containers 10 fed to the machine. Only when the proper containers
are fed to the machine during operation of the motor 23 will stamps
or suitable tokens be dispensed to the user.
In the event that a container of the correct size, but having
weight greater than that desired, be fed to the machine, the
heavier container will move the bail 100 downwardly and out of its
path of downward travel, so that the unwanted container will fall
right through and into the receiver 13. The machine will continue
to operate as if no containers were being fed thereto, and no token
will issue. Obviously, should smaller containers or particles or
foreign matter be fed to the machine, they will normally fall
through the crushing space between the bail 100 and ram head 26 or
platen 53, without interfering with operation of the machine, and
without causing a token to be dispensed.
In the event that a light weight object, such as a block of wood or
piece of metal having the size and weight characteristics of a
desired container, but requiring substantially greater crushing
effort than a desired container, be accidentally or otherwise fed
into the machine, the sensing fingers 216 may ready the token
dispensing mechanism for operation to dispense a token 128.
However, the greater crushing effort required by such a different
article will cause the toggle linkage 57 to buckle, against bias of
the tension springs 67. Such buckling of the linkage 57 is shown by
dotted lines in FIG. 9. One of the toggle links 60 is provided with
a cam element 235 that is operative to close a normally open switch
236 mounted on a bracket 237 that is rigidly secured to the
cross-frame member 21, see particularly FIG. 9. The switch 236 is
interposed in a lead 237 in series with a coil of solenoid 174, the
lead 237 being connected at one end to the main lead 181, and
grounded at its other end. Thus, when the switch 236 is closed, the
solenoid 174 is energized to move the levers 169 and 170 in
directions to cause both pawls 142 and 143 to be held out of
engagement with their respective ratchet members 139 and 140. Thus,
no stamp or token 128 will be delivered.
When the platen 53 is moved away from its operative position, as
above described, the springs 67 will cause the same to return to
its operative position as the ram 25 retracts. When this occurs, it
is necessary to prevent the undesired object which caused the
platen 53 to be retracted from again engaging the gate element 100
and held against dripping into the receiver 13. For this purpose, a
lever 238 is utilized to hold the gate element or bail 100 in its
container releasing position out of the path of travel of the ram
head 26. With reference particularly to FIG. 7, it will be seen
that the lever 238 is pivotally secured intermediate its ends to
the side frame members 16, by means of a pivot pin or the like 239,
and at one end is provided with a hook portion 240 that is adapted
to releasably engage a laterally outwardly projecting pin portion
241 of the gate element 100. The lever 238 is pivotally connected
to the armature 242 of a solenoid 243 the coil of which is
interposed in a branch lead 244 connected at one end to the lead 37
between the switch 236 and solenoid 174, and grounded at its other
end. Thus, when the switch 236 is closed by buckling of the toggle
linkage 57, the solenoid 243 is energized to cause the lever 238 to
engage the gate element 100 and hold the same in its retracted
position, as shown by dotted lines in FIG. 7. Then, as the ram 25
is moved to its fully retracted position, the object therebetween
and the platen 53 will fall by gravity to the receiver 13. Then, as
the ram 25 again moves forwardly toward the platen 53, the
connecting rod 38 engages a roller 245 mounted on one end of a
lever that is pivotally mounted intermediate its ends on the shaft
226, the opposite end of the lever 246 having an upstanding button
or finger 237 that engages the adjacent end of the lever 238 to
pivotally move the same in a direction to release the gate element
100. The lever 246 is yieldingly urged in a direction of its
pivotal movement away from engagement with the lever 238 by a coil
tension spring 248, this swinging movement being limited by a stop
pin 249 projecting laterally away from the adjacent side frame
member 16.
During operation of the machine as above-described in connection
with a non-crushable object, it is necessary to prevent feeding of
subsequent containers to the crushing zone until the same is clear.
To accomplish this purpose, a stop finger 250 is disposed to be
moved into and out of adjacent pockets or recesses 75 of the
feeding rotor 74. With reference to FIGS. 2, 11 and 13, it will be
seen that the stop finger 250 is disposed to be abuttingly engaged
by the end of an extension portion 251 of the rod 91, the stop
finger 250 being mounted on the upper end of a generally vertically
disposed bifurcated lever 252 that is pivotally mounted
intermediate its ends on a pivot pin 253 projecting outwardly from
the partition 77. A friction bushing 254 on the pivot pin 253
permits the lever to be rather easily pivotally moved but
yieldingly holds the lever in different positions against
accidental movement. As shown in FIGS. 2, 3 and 13, the pin 250
extends transversely through a slot 255 in the adjacent partition
77 toward engagement with the feeder rotor 74. During normal
feeding rotation of the rotor 74, the stop finger 250 is disposed
radially outwardly with respect to the rotor 74 and remains so
disposed during normal operation of the machine. The lower end of
the lever 252 is pivotally connected to the armature 256 of a
solenoid 257 suitably mounted on the partition 77. The coil of the
solenoid 257 is interposed in a grounded branch lead 258 that is
connected to the branch lead 244 is a parallel circuit arrangement
with the solenoid 243.
With the immediately above described arrangement, as soon as the
switch 236 is closed by buckling of the toggle arrangement 57, the
solenoid 257 will be energized to move the stop finger 250 into an
adjacent recess 75 of the feeding rotor 74 to hold the feeding
rotor 74 against rotation until the ram 25 has made one advancing
movement toward the platen 53 after the non-crushable object has
dropped into the receiver 13. During this time, the platen 53 has
returned to its operative position, and the solenoid 157 is
de-energized, permitting the rod 91 and its extension portion 251
to move the stop pin 250 out of holding engagement with the feeding
rotor 74.
The motor 23 and transmission mechanism driven thereby drives the
ram 25 at such speeds that cans are fed by the feeding rotor 74 and
crushed between the ram head 26 and platen 53 at the rate of one
can per second. By utilizing the spring 88 to impart feeding
rotation to the feeding rotor 74, the rotor will yield in the event
that a foreign object such as a container that is too large to be
received in its entirety in a recess 75, or if the operators hand,
should be thrust into one of the recesses 75 in the area of the
feeding ramp 9. Thus, injury to the machine or to the operator is
avoided. It will be further appreciated that, by controlling
operation of the drive motor 23 by two switches 199 and 200 in
parallel arrangement, the machine will continue to operate properly
and dispense tokens or stamps 128 even after one roll 129 thereof
is exhausted; but that, after both rolls 129 are exhausted, both
warning lights 207 will be illuminated and the drive motor will be
de-energized. This arrangement assures a user of the receipt of a
stamp 128 for each acceptable can crushed by the machine.
While I have shown and described a commercial embodiment of my can
crushing and token dispensing apparatus, it will be understood that
the same is capable of modification without departure from the
spirit and scope of the invention, as defined in the claims.
* * * * *