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Патент USA US3087602

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April 30, 1963
w. L. BILGER
3,087,592
ARTICLE DISPENSER WITH RECIPROCATING EJECTOR
Filed Jan. 4, 1960
‘
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3 Sheets-Sheet 1
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INVENTOR.
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I April 30,‘ 1963
w. |_. QBILGER
3,087,592
ARTICLE DISPENSER WITH RECIPROCATING EJECTOR
Filed Jan. 4, 1960
5 Sheets-Sheet 2
April 30, 1953
w. L. BILGER
3,087,592
ARTICLE DISPENSER WITH RECIPROCATING EJECTOR
Filed Jan. 4, 1960
3 Sheets-Sheet 3
'
76“
J30
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-
INVEN TOR.
Ma czvgbzgw
BY
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‘I
" States
atent
17. r? ce
3,987,592
Patented Apr. 30, 1963
1
2
3,087,592
on these brackets, and along its front‘edge on the panel
42. From the shelf 48, side walls 50 and 52 rise verti
ARTICLE DISPENSER‘WITH RECIPROCATING
I
.
EJECTOR
‘
Walter L. Bilger, 719 Grant St., Downers Grove, Ill.
Filed Jan. 4, 1960, Ser. N0.’ 117
3 Clai‘n'is- (Cl. 194-85)
My invention‘rela-tes to vending equipment and includes
among its objects ‘and advantages a vending unit embody
cally, with their front edges integrally united with the
upper front panel 40. The side wall 50 constitutes the
right wall of the merchandise chamber 51, when viewed
from the rear, but the side wall 52 has a companion side
wall 54 spaced away from it to house certain movable
members of the ejector mechanism. The inner wall 54,
together with the opposite wall 50 and the front wall 40,
ing a radical simpli?cation and reduction in cost and a 10 completes three of the vertical walls of the merchandise
unit constructed substantially entirely of plastic, with the
chamber 51. The walls 40‘ and 54 have their lower edges
parts so iarranged that they can be produced by standard
spaced above the shelf 48.~
ized mass-‘production ‘plastic procedures, without letting
The housing side walls, 18 and 20', are each provided
the ‘necessary taper in some of the parts impair the oper
with an inwardly extending ledge cleat 56, and each cleat
15 has a rear end hook at 58 (see FIGURE 4). 'It will be
at'ion of ‘the ?nished product.
It is ‘also convenient to have such a large portion of
apparent that the supporting frame for the dispensing
the unit ‘of transparent plastic that the operation of the
mechanism can be inserted from the rear of the housing;
mechanism can be observed by the user, as well as the
The upper edge of the front panel, 40, terminates below
presence or absence of merchandise in the magazine. This
the roof, 24, to leave a clearance space at 60‘ (see FIG
eliminates the need of any special indicator mechanism 20 URE 3), just great enough to let the lower edge of the
to show when the magazine is empty.
panel 42 slide into the position of FIGURE 3 above a
In the accompanying drawings:
pair of corner rails, 62, and drop down onto the floor
FIGURE 1 is a perspective view of a single unit ac
1'6, in front of the corner rails. This lets the ends of the
cording to'the invention;
shelf 48, come to rest on the cleats 56, restrained from
FIGURE 2 is a perspective indicating three units as 25 backward movement by the hooks 58, unless an operator
sembled in a single structure;
lifts the entire assembly to raise the lower edge of the
FIGURE 3 is a vertical section on line 3—3 of FIG
panel 42, above the level of the tracks 62, and withdraw
URE 11; ‘
the entire dispensing mechanism and its frame.
FIGURE 4 is‘ a section-on line 4—4 of FIGURE 3;
The fourth, and rear, wall of the merchandise compart
_ FIGURE 5' is a detailon line 5—5 of FIGURE 4;
ment 51 is a vertical panel 64, constituting an integral
FIGURE 6 is- a fragmentary section as on line 3—3,
rigid part of the rear closure 14. The panel 64 termi
indicating the parts ‘in‘an intermediate position;
nates above the top of the shelf 48, with a clearance de?n
. FIGURE 7 is a section on the same plane as FIGURE
ing an entry way to permit the ejector mechanism to come
6, indicating the parts in ?nal, or discharge, position;
in. This wall is then continued rearwardly and upwardly
‘FIGURE 8 is a rear view of‘the dispenser mechanism
at 66, and downwardly at 63 with an inset, or shoulder,
at 70 for convenient engagement with the thumb or ?nger
as-arwhole;
,
FIGURE 9 is a partial view of the housing, seen from
the rear, with the contents removed; and
of an operator for removing the rear closure. It is then
continued vertically downward at 72 and its lower edge
FIGURE 10 is‘ a fragmentary view of the parts in FIG
slides in over a plastic button 74, molded in the floor 16.
40
URE '8, with the frame illustrated and most of the mov
It is convenient and e?ective to design the parts so that
ing parts removed.
the operator can set the upper edge of the panel 64 just
inside a retaining lug 76, having a square end facing for
Overall Structure
ward, and the ‘distance from the lug 76 to the button 74
In the embodiment selected to illustrate the invention,
is a small fraction less than the undistorted length of the
each unit comprises three unitary sub-assemblies; the 45 rear closure so that the operator distorts the housing and
housing 10, the dispenser unit 12, and the rear closure 14.
the rear closure, and especially that portion of the rear
The‘housing comprises a floor 16, a vertical side wall 18
closure extending down from the rear edge of the por
on the side where‘the operating linkage is arranged, and
ti‘on "66, enough to let the closure snap into position.
a plain opposite side wall 20. The upper front panel 22
Similarly, when it is desired to remove the closure, a
is integrally-united along side its vertical side edges with 50 gentle pull on the same ‘parts will distort them, and the
front edges of the side walls 18‘ and 20' and all three are
lower edge of the bottom panel 72 will snap out over the
integrally united with the edges of a rectangular top 24.
button 74. It will be apparent that the stationary struc
The lower edge of the front panel 22 is integral with a
ture described provides a magazine, or storage space, hav
forwardly‘ extending shelf 26, which is integral with a
55 ing the shape of a rectangular parallelepipedon, adapted
downwardly extending apron 28.
to hold a stack of articles, such as the piece of gum indi
Adjacent‘ to the side wall 18‘, the shelf 26 and apron 28
are terminated» at the opposite side of atsmaller concave
hoiising“ portion ‘30 adapted to house segmental- portions
of the main parts of the movable dispensing mechanism,
cat'ed at 77 in FIGURE 4, resting on the shelf 48, with the
rear edge of the piece registering with the slot below the
rear wall 64 and the ‘front edge of the‘ piece registering
with the slot 44 in front, so that the piece may be pushed
and slotted at 32 to receive a coin and at 34 to permit 60 forward and fall out of its position and into the space
passage and to and fro movement for-a manual operat
‘ing lever 26 having a terminal head 38'for the convenience
behind the apron 28, where it will fall downwardly and
rearwardly and come to rest on the ?oor 16 in front of
the panel 42. A cleat 17 guards against having the article
falltrolf the ?oor 16 prematurely.
The ejector proper, includes a reciprocating plate 78
and easily removed therefrom as a unit for inspection or 65
repair. It comprises a rigid stationary frame having an
normally lying just behind the bottom ‘article in the
upper front panel 40 and- a lower front panel 42 sep
magazine, as indicated in FIGURES 3 and 4. There is
arated by an-exit slot at 44. To bridge this gap and com
also a front retainer arm '80‘. This is rigid with and
of the user.
7
The ‘dispenser unit 12 may beinserted in the housing
plete an integral unitary structure, I provide triangular
moves in unison with the plate 78, so far as contact with
brackets 46‘ (see FIG. 3) on the upper portion of the
the articles is concerned. The plate is ‘guided in rota‘
tion about the axis of a pivot 81, located remote from
lower panel 42, and the horizontal shelf 48 is supported
3,087,592
3
the plate and near the top of the magazine. This means
that its path to and fro is one of such slight curvature
that the deviation from a straight path does not inter
fere with effective action on the bottom ‘article. Refer
ence to FIGURE 3 will make it apparent that an article
lying between the plate 78 and the guide 80 will travel
forward when those parts move to the dotted line posi
tion indicated in the same v?gure until it falls by gravity
4
Coin-Control
A coin-controlled transmission is provided for actuat
ing the arms 86 and 90 to move forward and eject an
article. The arm 90 is an extension of a driven disc
112, pivoted on the main pivot 92. The pivot 92 is
supported in spaced bearing plates 91, projecting down
from shelf 48. Parallel to and spaced from the driven
disc 112 is the driving disc 114. The actuating arm 36
in the direction of the arrow 82, and comes to rest on
is an integral extension of the disc l114.
10
the ?oor 16, between the partition v42 .and the cleat 17.
As indicated in FIGURE 8, the discs 112 and 114
The connection from the plate 78 to the pivot 81 is
are axially spaced apart to leave a narrow clearance 116
through a rear beam 84, integral with a dog-leg arm 86,
between them adapted to receive the coin needed to
which extends upon between the stationary walls 52 and
establish the mechanical connection for driving disc 112
‘54 and is in contact with them over a substantial area,
from disc '114.
so that its movement is guided by them. The lower two 15
For this purpose the disc 114 carries a driving lug
thirds of the ‘arm 86 is made narrower to leave a clear
118, which lies slightly above the entrance slot 32 for
ance at 88, which clearance receives an arm 90‘ (see
the coin, and the driven disc 112 carries a driven lug
FIGS. 7 and 8) pivoted about the main pivot 92. The
120 positioned slightly below the entrance slot so that
arm 90 carries a pin 93 lying in a slot 94 in the arm 86.
an inserted coin 122, as clearly indicated in FIGURE
20
It will be apparent that the rotation of arm 90 around
3, can move freely in through the slot to the position
pivot 92 will cause the pin 93 to force the long arm 86
indicated in FIGURE 3. Further inward movement is
to the forward position indicated in the dash and dot
arrested by a stationary cam 124, which is positioned to
lines in FIGURE 3. The position of rest is also indi
engage the coin and arrest its inward movement, with
cated in ordinary dotted lines in the same ?gure and in
the weight of the coin resting chie?y on lug i120 and
full lines at the bottom of the arm, where it can be seen. 25 secondarily on cam 124.
The earn 124 is integral with
For convenience in both manufacture and assembly,
shelf 48 and also forms :a third bearing for the main
the plate 78 is removable from the beam 84. The plate
pivot 92.
78 has an integral ?ange 96 extending downward and
As indicated in FIGURES 3 and 6, the cam 124 is
having contact with front of the beam 84. It also has
cut away sharply back of its point, engaging the coin
30
a central rearward projection 98 lying over the top of
in FIGURE 3. It will be apparent that clockwise rota
the beam 84, but this projection occupies only a little
tion of the driving disc 114 will ‘move the driving lug
more than the central half of the transverse extent of
‘118 down to engage the edge of the coin and push the
the plate. Just beyond either end of the extension 98
coin and the driven lug 120 and disc 112 down and in
the ?ange 96 is provided with end hooks each compris
clockwise rotation, while the coin is prevented from slip
ing a bottom reach 100, underlying the beam 84, and 35 ping inward out from between the driving and driven lugs
a rear upwardly extending reach 102 engaging the rear
by the point of the cam 124. In FIGURE 6, these parts
of the beam 84. These parts are made with enough
are illustrated in mid-stroke. The coin 122 is still effec
clearance to permit the plate to slide on to the exposed
tive to transmit thrust between the lugs 118 and 120,
right end of the beam 84 into assembled relationship.
40 but it is beginning to slip radially inward so that the
angle of contact at its edges in increasing. Further ro
To provide a little additional resilience and improve
tation for about 10° more will bring the parts to the
the tolerances in manufacture, the plate ‘78 includes end
position of FIGURE 7, where the lug 118 has come down
wings 164. Each end wing is integrally united near its
and moved partially past the lug 120, but the operative
rear end with the ?ange 96 and lies in the same plane
with the body of the plate 78 and is connected to the 45 connection for transmitting thrust from 118 to 120 is
gone because of the clearance provided for movement of
main body at its front end by a narrow cross piece 106.
the coin to escape in the direction in the arrow ‘126, so
On the upper face of each wing 104 I provide a narrow
that it will ‘fall on the ?oor 16 behind the partition 42,
elevated strip ‘108 which constitutes a track for sliding
contact with the bottom of the pile of articles so that
friction is minimized as the plate slides back into the
full line position ‘of FIGURE 3, after ejecting one of
the articles. The entire front edge of the plate slides
on the horizontal shelf 48, so that the beam 84 never
where it can be collected by an operator, who comes to
remove the rear closure and the ‘accumulated coins and
replenish the magazine. The disc 114 carries obturator
lugs i111 and 113 to de?ne an inlet opening that registers
with the slot 32 only in the position of FIGURE 3.
The segmental chamber 30 receives the edges of the
carries the load of the plate or the pile of articles, but 55 driving and driven discs 112 and 114 and includes a
merely propels the plate forward to eject an article, and
?ange 128 having sliding contact with the periphery of
retracts it to let the pile settle and position the next
the disc 114 and an opposite ?ange 130 for similar en
gagement with the edge of the disc 112. This provides
article in position to be ejected.
mechanical guidance for the sliding movement of the
When in assembled position, the plate is restrained from
sliding off the beam 84 by the vertical wall 50. For 60 parts and avoids imposing any material load on the pivot
92 with respect to keeping the parts in alignment. The
convenience in assembly this wall carries a rearward
space to the left of ?ange 130 in FIGURE 9 remains
extension 110 (see FIGURES 4 and 5). The upper
unoccupied
and un-used.
edge of the extension 110 is above the level of the shelf
Resilient means are provided for returning the discs
48 so that, with the beam 84 moved to the full line po
112 and 114 to their initial positions, indicated in full
sition of FIGURE 3, the plate can be slipped over the 65 lines in FIGURE 3. I have illustrated a spring 132 of
beam, and the looseness of the connection between them,
four closely wound turns, with a hook 134 getting a pur
with or without a little ?exure of the plastic material
chase on the edge of shelf 48 and a hook 136 taking over
of which the entire mechanism is built, permits the front
a radial edge at 138 on the disc 114. The spring for
edge of the plate to be pushed in over the extension 110, 70 the disc 112 has to be strong enough to withdraw the
sliding on that extension until the end passes beyond
shelf from its position under the pile of articles.
it and drops down into the ?nal assembled position clearly
I have indicated a wire spring having one end anchored
indicated in FIGURE 5, with its front corner just inside
at 138-a (see FIGURES 6 and 7) in the front panel
the extension 110 to continue the guidance for the plate
40. From there the spring extends down in front of
to the extreme rear position of the parts.
the front edge of the shelf 48 to get a ?rst fulcrum
3,087,592
6
chanical load is at all heavy, the obturator 111 can have
and it is then continued in an arcuate form and anchored
its proximate end enough lower to share the working
at 140 by a bent end entering a hole in the disc 112. The
load on point 118, or to make the initial contact, with
force it exerts on the disc 112 is counter-clockwise, but
subsequent contact with point 118 later on.
the disc 112 only moves through an angle of about 20°.
As at present advised, with respect to the apparent
Counterclockwise movement of disc 114 may be limited
scope of my invention, I desire to claim the following
by contact of an upper edge 109 with panel 40, or by
subject matter:
'
lever 36 engaging the upper end of slot 34.
1. Dispensing equipment comprising in combination:
For most conditions of service it is desirable to have
a chamber adapted to house a pile of stacked articles; a
a full stroke mechanism. I prefer to apply this to the
ejecting lever pivoted at its upper end on a hori
disc 114 so that persons toying with the mechanism will 10 plastic
zontal
axis adjacent the top of the stack; said ejecting
be more effectively restrained. I have indicated a rack
lever extending down to the bottom of the stack; a sta
142 in the inner periphery of an axially short extension
tionary plastic pile support at the bottom of said cham
chamber, and a conventional, triangular, trailing corner
ber; a slot in one side of said chamber adjacent said sup
pawl '144 pivoted on the disc 114 and gently urged to
adapted to let an article leave said chamber; an
its intermediate position by a light spring 146. At each 15 port
ejector arm extending laterally from the lower end of
end of the rack 142 there is a recess 148 into which the
said ejecting lever to move to and fro in a generally hori
point of pawl can drop when the stroke in that direction
zontal path with a radius of curvature substantially as
is completed.
large as the height of said stack; and coin completed
Because all of the parts are of plastic, the construc
and activated means for reciprocating said lever and arm
tion is exceedingly cheap. The remote location for the 20 to
alternately expel the bottom article and to withdraw
pivot 81 and the ?exibility of all the parts contributes to
said ejector arm and let the remainder of said stack move
making an operating mechanism that can stand the wear
down onto said support; said arm carrying a plastic ejec
and tear of service and still have an extended and useful
tor
blade; the rear edge of said blade being pivoted to
life without using any of the material at higher mechani
said arm and guided thereby above and out of contact
25
cal stresses than it can endure.
with said support; the opposite, front edge of said ejector
Others may readily adapt the invention for use under
sliding on said support and having its lower plastic sur
various conditions of service, by employing one or more
face
adjacent its front edge shaped for narrow, substan
of the novel features disclosed, or equivalents thereof.
tially line contact with said support.
For instance, under conditions of service where it is con
2. Equipment according to claim 1 in which the top
sidered advisable to protect against the use of slugs, a 30
contact surface of said support has a radius of curvature
conventional coin rejector 150 can be mounted over the
slot 32.
greater than that of the path of said ejector arm.
3. Dispensing equipment comprising in combination:
The con?guration of the slot 44 and the ejector parts
a chamber adapted to house a pile of stacked articles; a
plastc ejecting lever pivoted at its upper end on a hori
35
of articles, and the transmission to the ejecting mechanism.
engaging the article can be tailored to ?t a wide variety
zontal axis adjacent the top of the stack; said ejecting le
is well adapted to actuate delivery means for liquids and
powders as well as discrete articles.
I
Very thin articles can be successfully dispensed with
ver extending down to the bottom of the stack; a station
ary plastic pile support at the bottom of said chamber;
a slot in one side of said chamber adjacent said support
such as a ?oating plate as the plate 78. When the articles
to let an article leave saidchamber; an ejector
are of much greater thickness, the articulation to let the 40 adapted
arm
extending
laterally from the lower end of said eject
plate ?oat becomes unnecessary. But in either case, if
ing lever to move to and fro in a generally horizontal
the ejector had to move in rectilinear movement, with
path with a radius of curvature substantially as large as
rectilinear guides to control its path, the expense of manu
the height of said stack; coin completed and activated
facture would be greatly increased and the freedom from
means for reciprocating said lever and arm to alternately
45
occasional wedging or sticking greatly decreased.
expel the bottom article and to withdraw said ejector arm
Any one of a wide variety of conventional locks may
and let the remainder of said stack move down onto said
be used to guard against pilfering. With or without a
support; said means for reciprocating said lever and said
lock, the additional resilience due to the offset at 70,
arm comprising a second, plastic transmission lever piv
helps the assembled unit stay snug, and makes it very
oted at its lower end on a horizontal axis near the bot
dif?cult to get unauthorized access to the accumulated 50
tom of said chamber; said second transmission lever ex
coins, as by prying up the lower edge of the panel 72.
It will be obvious that with certain types of articles,
tending up beside said ejecting lever; and a pin-and-slot
connection between the upper end of said transmission
most of the advantages of the invention may be retained
lever and a central portion of said ejecting lever and pro
in a construction where the operator supplies the energy
to withdraw the plate, and spring means actuates the 55 jections on said arm and said transmission lever engage
able by a coin to complete and activate said means.
ejecting movement of the plate.
The coin is gradually released, and escapes under the
References Cited in the ?le of this patent
force of the forward movement of the driving disc. The
same type of drive by edge contact is equally effective
UNITED STATES PATENTS
if the edge contacts tend to retain the coin. After the 60
695,154
Hunter ______________ __ Mar. 11, 1902
driving force has terminated the coin can escape by
890,046
Green _______________ __ June 6, 1908
gravity or by positive displacement in its own plane or
1,065,098
Angell _____________ __ June 17, 1913
in a direction normal to the plane of the coin.
I have indicated the point 118 in FIGURE 3 slightly
spaced from the coin. Whenever it is desirable to retain 65
a coin at this position, point 118 may be located lower
and the coin will have to be pushed under it, and will
depress the receiving point 120 a little in getting into
position.
.
Similarly, the adjacent ends of the obturators 111 and 70
113 are shown out of contact w'th the coin. If the me
1,590,700
1,598,148
1,681,601
2,026,636
2,675,238
2,859,849
2,909,261
Roberts _____________ __ June 291
Miller ______________ .._ Aug. 31,
Tintera _____________ __ Aug. 21,
Hope et al. ____________ __ Jan. 7,
Leaf ________________ __ Apr. 13,
Neidig ______________ __ Nov. 11,
1926
1926
1928
1936
1954
1958
Barr _________________ _- Oct. 20, 1959‘
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