U.S. patent number 3,899,864 [Application Number 05/423,518] was granted by the patent office on 1975-08-19 for coin wrapping apparatus.
This patent grant is currently assigned to Laurel Bank Machine Co., Ltd.. Invention is credited to Hideshi Sentoku, Isamu Uchida, Kenkichi Watanabe.
United States Patent |
3,899,864 |
Uchida , et al. |
August 19, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
Coin wrapping apparatus
Abstract
Herein disclosed is a coin wrapping apparatus of a new
construction, by which a stack of a predetermined number of coins
is automatically wrapped with a predetermined length of wrapping
tape. By the coin wrapping apparatus of an embodiment of this
invention, the stack of large or small diameter coins can be
selectively wrapped with a large or small amount of wrapping tape
to fit the diameter of coins to be wrapped.
Inventors: |
Uchida; Isamu (Tokyo,
JA), Watanabe; Kenkichi (Kawasaki, JA),
Sentoku; Hideshi (Tokyo, JA) |
Assignee: |
Laurel Bank Machine Co., Ltd.
(Tokyo, JA)
|
Family
ID: |
11809886 |
Appl.
No.: |
05/423,518 |
Filed: |
December 10, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Dec 15, 1972 [JA] |
|
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47-12602 |
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Current U.S.
Class: |
53/212; 53/389.3;
53/389.4 |
Current CPC
Class: |
G07D
9/065 (20130101) |
Current International
Class: |
G07D
9/06 (20060101); B65b 011/04 () |
Field of
Search: |
;53/210,211,212,389 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: McGehee; Travis S.
Assistant Examiner: Sipos; John
Attorney, Agent or Firm: Stults; Harold L. Razzano; Pasquale
A.
Claims
We claim:
1. A coin wrapping apparatus to operate with accumulating means for
stacking a predetermined number of coins in the form of a
cylinder;
wrapping means for winding the stack of coins with a length of
tape;
means for transporting the stack of coins from said accumulating
means to said wrapping means;
a tape supply;
a guide roll mounted in said apparatus adjacent to said tape
supply;
a driving roll mounted in said apparatus opposite to and closely
spaced from said guide roll;
a selectively energizable electromagnet unit adapted, when
energized, to move said driving roll toward said guide roll into
engagement with tape guided over the guide roll, thereby to
cooperate with said guide roll to feed the tape from said tape
supply to said wrapping means;
a cutter blade positioned downstream relative to said driving roll
along the direction of travel of the tape, and being responsive to
stretch of the tape by said wrapping means for cutting the
tape,
guide means mounted in said apparatus between said guide roll and
said wrapping means; and
control means for said apparatus comprising a first cam disc
rotatably mounted in the apparatus, means for rotating said disc at
a predetemined speed, and a microswitch electrically connected to
said electromagnetic unit and to an electric power supply, said
microswitch including an actuator member adapted to engage and be
actuated by the periphery of said cam disc, the periphery of said
cam disc including a first raised surface portion adpated to engage
said actuator to close said microswitch and a second recessed
surface portion that allows the microswitch to open, thereby to
periodically energize and deenergize said electromagnet unit, said
wrapping means being activated in response to deenergization of
said electromagnet unit to wrap said stack of coins, whereby when
said electromagnet is energized, said driving roll feeds a required
length to tape to said wrapping means, and when said electromagnet
unit is deenergized and said wrapping means is activated, the
required length of tape is cut and wound around the stack of coins
while feeding of the tape by said driving roll is stopped, said
wrapping means comprising,
three wrapping rolls respectively located in a predetermined array
at the vertexes of an equilateral triangle,
two connecting levers, each having one of said wrapping rolls
mounted at one end thereof and each being pivotally mounted in said
apparatus at their mid-portion on fixed pivot points,
a connecting rod having opposite ends pivotably connected to the
ends of said connecting levers remote from said one ends thereof,
said connecting rod and said connecting levers being disposed with
respect to each other such that the opposite ends of said
connecting rod and said fixed pivot points always are located at
the corners of a parallelogram,
a first arm having the other of said wrapping rolls mounted at one
end thereof and pivotally mounted at its other end on one of said
fixed pivot points,
a second arm, said other to said wrapping rolls also being mounted,
simultaneously, at one end of said second arm, and said second arm
being pivotally connected to said remote end of one of said
levers,
a second cam disc rotatably mounted in said apparatus for rotation
by said rotating means at said predetermined speed; and a control
lever pivotally mounted in said apparatus at its mid portion on a
fixed pivot point and having one end cooperatively connected to
said connecting rod and its opposite end engaging the periphery of
said second cam disc, first spring means for biasing said control
lever to move its one end away from the cooperative connection with
said connecting rod, second spring means for biasing said
connecting rod to positions wherein said wrapping rolls are forced
to converge and hold the stack of coins therebetween, and said
second cam disc having a predetermined peripheral configuration
selected such that when said second cam disc does not act on said
control lever, the action of said first spring means causes said
control lever to move away from the cooperative connection to said
connecting rod to allow the connecting rod to move under the
pulling action of said second spring means, thereby allowing said
wrapping rolls to hold a stack of coins therebetween, and when said
second cam disc acts on said control lever to cause said connecting
rod to move against the pull action of said second spring means,
thereby keeping said wrapping rolls away from each other.
2. A coin wrapping apparatus as defined in claim 1 which further
comprises:
another control means comprising a third cam disc corresponding to
said first cam disc and having a different length in the peripheral
portion thereof that causes said microswitch to close in
cooperation with said actuator; another microswitch electrically
connected both to said electromagnet unit and an electric power
supply; and
a switching means for selectively putting one of the control means
in operation to fit the diameter of coins to be wrapped.
3. A coin wrapping apparatus as defined in claim 1 which further
comprises means for driving said driving roll and means for
selectively changing the peripheral speed of said driving roll to
fit the diameter of the coins to be wrapped.
4. A coin wrapping apparatus as claimed in claim 2, wherein said
guide means comprises two tape passage-length adjustment
cantilevers each pivoted at one end thereof and positioned so as to
overlap with each other at the other end, the lower one of said
cantilevers being spring-biased and supporting the other upper
cantilever at said other end and a support for preventing said
upper cantilever from rising above a given level.
5. A coin wrapping apparatus as claimed in claim 4, wherein said
cutter blade is adjustable in position.
6. A coin wrapping apparatus comprising a coin wrapping station
adapted to receive and support a cylindrical stack of coins
therein; and means for supplying coin wrapping tape to said
wrapping station including a guide roller over which the tape
passes in its path of travel to said wrapping station and a tape
driving roller cooperating with said guide roller; selectively
operable means for moving said driving roller towards said guide
roller into engagement with the tape on the guide roller to
selectively feed the tape to the wrapping station;
means at said wrapping station for selectively guiding and wrapping
said tape about a satck of coins at said station; and
control means for said moving means and said wrapping means
including a first cam disc rotatably mounted in said apparatus,
means for rotating said disc at a predetermined speed, and a
microswitch operatively connected to said moving means for
controlling the operation thereof; said first cam disc having first
and second cam portions on its periphery located at different
radial distances from its axis of rotation, and said microswitch
including an actuator member adapted to be engaged only by said
first cam portion during rotation of the cam disc to actuate said
moving means only during engagement of said actuator member with
said first cam surface, said control means actuating said wrapping
means upon deactivation of said moving menas when said second cam
surface portion moves below said actuator, said wrapping means
comprising,
three wrapping rolls respectively located in a predetermined array
at the vertexes of an equilateral triangle,
two connecting levers, each having one of said wrapping rolls
mounted at one end thereof and each being pivotally mounted in said
apparatus at their mid-portion on fixed pivot points,
a connecting rod having opposite ends pivotally connected to the
ends of said connecting levers remote from said one ends thereof,
said connecting rod and said connecting levers being disposed with
respect to each other such that the opposite ends of said
connecting rods and said fixed pivot points always are located at
the corners of a parallelogram,
a first arm having the other of said wrapping rolls mounted at one
end thereof and pivotally mounted at its other end on one of said
fixed pivot points,
a second arm, said other of said wrapping rolls also being mounted,
at one end of said second arm, and said second arm being pivotally
connected to said remote end of one of said levers.
7. The coin wrapping apparatus as defined in claim 6 wherein said
control means includes a second cam disc rotatably mounted in said
apparatus for rotation by said rotating means at said predetermined
speed; and a control lever pivotally mounted in said apparatus at
its mid-portion on a fixed pivot point and having one end
cooperatively connected to said connecting rod with its opposite
end engaging the periphery of said second cam disc, spring means
for biasing said control lever and said connecting rod to positions
wherein said wrapping rolls are forced to converge and hold the
stack of coins therebetween, and said second cam disc having a
predetermined peripheral configuration selected such that when said
moving means is activated said second cam disc acts on said control
lever to cause said connecting rod to move counter to the pull
action afforded by said spring means, thereby keeping said wrapping
rolls away from each other, and when said moving means is
deactivated to allow said control lever to move under the influence
of said spring thereby allowing said wrapping rolls to hold a stack
of coins therebetween.
8. The coin wrapping apparatus as defined in claim 7 wherein said
control means further includes a third cam disc, having first and
second cam surface portions corresponding to the first and second
cam surface portions of said first cam disc with the length of said
first cam surface portion of the third cam disc being greater than
the first cam surface portion of the first cam disc; another
microswitch connected to said moving means; and a switching means
for selectively putting one of the microswitches in operation to
control the moving means; the lengths of said first cam portions
being selected in accordance with the diameter of the coins to be
wrapped.
9. A coin wrapping apparatus as defined in claim 8 which further
comprises means for driving said driving roll and means for
selectively changing the peripheral speed of said driving roll to
fit the diameter of coins to be wrapped.
10. A coin wrapping apparatus comprising a coin wrapping station
adapted to receive and support a cylindrical stack of coins
therein; and
means at said wrapping station for selectively guiding and wrapping
a coin wrapping tape about a stack of coins at the station;
said wrapping means including:
three wrapping rolls respectively located in a predetermined array
at the vertexes of an equilateral triangle;
two connecting levers, each having one of said wrapping rolls
mounted at one end thereof and each being pivotally mounted in said
apparatus at their mid-portion of fixed pivot points;
a connecting rod having opposite ends pivotally connected to the
ends of said connecting levers remote from said one ends thereof,
said connecting rod and said connecting levers being disposed with
respect to each other such that the opposite ends of said
connecting rod and said fixed pivot points always are located at
the corners of a parallelogram;
a first arm having the other of said wrapping rolls mounted at one
end thereof and pivotally mounted at its other end on one of said
first pivot points;
a second arm, said other of said wrapping rolls also being mounted,
at one end of said second arm, and said second arm being pivotably
connected to said remote end of one of said levers.
11. The coin wrapping apparatus as defined in claim 10 including
control means comprising a cam disc rotatably mounted in said
apparatus for rotation at a predetermined speed; and a control
lever pivotally mounted in said apparatus at its mid-portion on a
fixed pivot point and having one end cooperatively connected to
said connecting rod with its opposite end engaging the periphery of
said cam disc, spring means for biasing said control lever and said
connecting rod to positions wherein said wrappong rolls are forced
to converge and hold the stack of coins therebetween, and said cam
disc having a predetermined peripheral configuration such that said
cam disc selectively acts on said control lever to cause said
connecting rod to move counter to the pull action afforded by said
spring means, thereby keeping said wrapping rolls away from each
other, and to allow said control lever to move under the influence
of said spring thereby allowing said wrapping rolls to hold a stack
of coins therebetween.
Description
This invention relates to a coin wrapping apparatus, and more
particularly to an apparatus by which a stack of coins of large or
small diameter can be wrapped respectively with a long or short
wrapping tape.
Conventional coin wrapping apparatus has several defects. For
instance, in the conventional coin wrapping apparatus, the wrapping
means includes three wrapping rolls, but only one roll is movable
and the other rolls are fixed in position. In such wrapping means,
the center position of the stack of coins being wrapped varies
depending the diameter of coins to be wrapped. As such, the
wrapping operation cannot be conducted accurately.
Moreover, in the conventional coin wrapping apparatus, coins of
different diameters have been wrapped with a constant length of
paper tape. When a stack of coins of small diameter is wrapped, the
winding number of the wrapping tape around the stack becomes so
great, while the winding number of the wrapping tape for the stack
of coins of large diameter may be so small, that the satisfactory
strength can not be obtained in the part of the wrapping tape.
It is a main object of this invention to provide a new coin
wrapping apparatus.
It is a further object of this invention to provide a coin wrapping
apparatus by which the stack of coins can be selectively wrapped
with a large or small length of paper tape to fit the diameter of
coins to be wrapped.
It is a still further object of this invention to provide a coin
wrapping apparatus in which the stack being wrapped can be held at
a fixed position notwithstanding variations in the diameter of
coins to be wrapped.
Other objects and advantages of this invention will be made
apparent from the following description.
According to this invention, there is provided a coin wrapping
apparatus which comprises accumulating means for stacking a
predetermined number of coins in the form of a cylinder; wrapping
means for winding the stack of coins with a length of tape; means
for transporting the stack of coins for said accumulating means to
said wrapping means; a tape supply; a guide roll fixed adjacent to
said tape supply; a driving roll opposite to said guide roll; an
electromagnet unit when energized, to push said driving roll
against said guide roll, thus allowing said driving roll to feed
the tape from said tape supply to said wrapping means in
cooperation with said guide roll; a cutter blade positioned
downstream to said driving roll and being responsive to stretch of
the tape by said wrapping means for cutting, guide means inbetween
said guide roll and said wrapping means; and control means
comprising a first cam disc rotating at a predetermined speed and a
microswitch electrically connected both to said electromagnet unit
and an electric power supply, the actuater of said microswitch
abutting on the circumferential periphery of said cam disc, and the
circumferential periphery of said cam disc including a portion that
causes said microswitch to close and the remaining portion that
causes the same to open in cooperation with said actuater, thus
enabling the periodic energization of said electromagnet unit, and
said wrapping means being adapted to be put into operation in
response to deenergization of said electromagnet unit, whereby when
said electromagnet unit is energized, said driving roll feeds the
required length of tape to said wrapping means, and when said
electromagnet unit is deenergized and when said wrapping means is
put into operation, the required length of tape is cut and wound
around the stack of coins while feeding of the tape is stopped.
In accordance to one illustrative embodiment of this invention,
there is provided a wrapping means for use with the coin wrapping
apparatus, which comprises: three wrapping rolls generally standing
respectively at the vertexes of an equilateral triangle in a
horizontal plane; two connecting levers each having one of said
wrapping rolls mounted at one end thereof and being pivotably
supported at the mid portion thereof by fixed axels; a connecting
rod having opposite ends pivotably connected to the remote ends of
said connecting levers from said one ends thereof, a first arm
having the remaining wrapping roll mounted at one end thereof and
being pivotably supported at the other end by one of said fixed
axels; a second arm having said remaining wrapping roll mounted at
one end thereof and being pivotably connected to said remote end of
one of said levers; a second cam disc rotating at a predetermined
speed; and a control lever pivotably supported at the mid portion
thereof by a fixed axel and having one end cooperatively connected
to said connecting rod and the other end abutting on the
circumferential periphery (i.e. the cam surface) of said second cam
disc, said control lever and said connecting rod being biased by a
spring means so that said wrapping rolls are forced to converge and
hold the stack of coins inbetween, and said second cam disc having
such a circumferential periphery (i.e. cam surface) that when said
electromagnet unit is energized, said second cam disc acts on said
control lever to cause said connecting rod to move the counter to
the pull action afforded by said spring, thereby keeping said
wrapping rolls away from each other, and when said electromagnet
unit is deenergized, said second cam disc acts on said control
lever to be subject to spring bias thereby allowing said wrapping
rolls to hold the stack of coins therebetween.
In accordance with another embodiment of this invention, it is
proposed to employ a control means of the same type described the
above, except that the length of the portion of the circumferential
periphery or cam surface of the cam disc that causes said micro
switch to close in cooperation with the actuater is made different
from that of the other control means and a switching means is used
to selectively put one of these control means in operation in
accordance with the dimension of the diameter of coins to be
wrapped.
In the other embodiment of this invention, a speed change system
for changing the peripheral speed of the driving roll is provided
in place of one of said two control means, for conducting the
selective wrapping operation to fit the diameter of coins to be
wrapped.
Now, this invention will be explained in more detail with reference
to the accompanying drawings, wherein;
FIG. 1 is a plan view of the coin wrapping apparatus according to
an embodiment of this invention.
FIG. 2 is a side view showing the control means of the apparatus of
FIG. 1.
FIG. 3 shows the electric circuit of the control means of FIG.
1.
FIG. 4 is a plan view of the coin wrapping apparatus of another
embodiment of this invention.
FIG. 5 is a side view showing the construction of the principal
portion of the speed change system of the apparatus of FIG. 4.
FIG. 6 is a plan view showing the driving roll according to an
embodiment of this invention.
FIG. 7 is a side sectional view of said driving roll.
FIG. 8 is a plan view showing the guide passage according to an
embodiment of this invention.
FIG. 9 is a plan view showing the cutter blade according to a
further embodiment of this invention.
Now, referring to FIG. 1, a roll of wrapping paper tape 2 is held
on a mandrel 3 which is supported on a tape supply base 1. Adjacent
to the roll of wrapping paper tape 2, a guide roll 4 is fixed. A
guide means 5, a cutter blade 6 and a support member 7 therefor are
disposed downstream on the guide roll 4. These units together
constitute a wrapping tape supply. If desired, the wrapping tape
supply may be, as a whole unit, detachably mounted in a machine
frame so that when a stack of coins of different height is to be
wrapped, the wrapping tape supply may be easily replaced by a
different supply unit having a wrapping paper tape of different
width.
A driving roll 8 is provided on one end of a lever 31 and adjacent
to the guide roll 4. The lever 31 is supported at the mid portion
thereof by a pivot and connected at the other end to a plunger 33
of an electromagnet unit 34, so that the driving roll 8 is
responsive to periodic actuation of the electromagnet unit 34 to
move into or out of contact with the guide roll 4 thereby
periodically feeding the wrapping paper tape of a predetermined
length.
The electromagnet unit 34 is periodically energized by a control
means.
The control means comprises a cam disc 37 rotating at a
predetermined speed and a microswitch M.sub.2 electrically
connected to the electromagnet unit 34 and an electric power
supply. The actuater 44 (FIG. 2) of the microswitch M.sub.2 abutts
on the circumferential periphery of the cam disc 37 which includes
a portion that causes the microswitch M.sub.2 to close to thereby
energize the electromagnet unit 34, and the remaining portion that
causes the microswitch M.sub.2 to open to thereby deenergize the
electromagnet unit 34. In this particular embodiment, as shown in
FIG. 2, the circumferential periphery of the cam disc 37 has sank
(or recessed) and raised portions. The actuater 44 can touch the
raised portion but cannot touch the sand (or recessed) portion.
In order to selectively wrap the stacks of coins of different
diameters with wrapping paper tape of different length in
accordance with the diameter of coins to be wrapped, there are
provided another can disc 37' and a microswitch M.sub.3. In this
embodiment, the sank (or recessed) portion of the circumferential
periphery of the cam disc 37' is made shorter by "l" than that of
the cam disc 37 as shown in FIG. 2. For selectively actuating the
microswitch M.sub.2 or M.sub.3, a microswitch M.sub.1 is used which
is operated by a handle 41 through a cam 43. When a stack of small
diameter coins is to be wrapped, the microswitch M.sub.1 is
switched to the side of microswitch M.sub.2, and then the paper
tape as long as that determined by the cam disc 37 is fed. When a
stack of large diameter coins is to be wrapped, the microswitch
M.sub.1 is switched to the side of microswitch M.sub.3. The circuit
associated with the microswitches is shown diagramatically in FIG.
3.
Referring again to FIG. 1, the wrapping paper tape thus fed in a
predetermined amount is guided by the guide means 5 and the passage
means 11 to a wrapping station. The wrapping station comprises
three wrapping rolls 12, 13 and 14, and a support 30 for the stack
of coins. A predetermined number of coins are accumulated and
stacked in the form of a cylinder. The stack of coins thus formed
is then transported to the wrapping station. These accumulating and
transportion means will not be herein explained in detail, because
such means does not constitute the object of this invention. To the
support 30, the stack of a predetermined number of coins is
periodically fed. It is necessary that supply of the coin stack to
the wrapping station is synchronized with the feeding of the
wrapping tape. The tape feeding rate is determined by the rotating
speed of the cam disc.
The wrapping rolls 12, 13 and 14 stand respectively on the vertexes
of an equilateral triangle on a horizontal plane. As is shown in
FIG. 1, wrapping rolls 12 and 13 are respectively mounted on the
ends of levers 15 and 16. These levers 15 and 16 are respectively
supported by pivots 21 and 22 at fixed points. The other ends of
the levers 15 and 16 are connected respectively to the ends 23 and
24 of a connecting rod 17. The remaining wrapping roll 14 is
mounted on one end of an arm 18 which is supported at the other end
by the pivot 22. The wrapping roll 14 is also mounted on one end of
an arm 19 which is in return, pivotably connected to the end
portion 23' of said lever 15. The connecting rod 17 is
spring-biased by a spring 27 to permit the wrapping rolls 12, 13
and 15 to converge and hold the coin stack inbetween while wrapping
the stack with the wrapping tape. The connecting rod 17 is made
cooperative with a lever 20 by butting one end of the lever 20
against the connecting rod 17. The lever 20 is also spring-biased
by a spring 26, and supported by a pivot 25. As shown in FIG. 4,
the lever 20 may be integrally connected to the connecting rod 17,
such as by welding. In such case, it suffices that only the lever
20 is spring-biased. The lever 20 has a roll 28 provided at the
other end. The roll 28 abuts against the circumferential periphery
of a cam disc 36 rotating at a predetermined speed. The cam disc 36
is provided with an arc projection axially rising from a portion
length of the circumferential periphery. Accordingly, when the roll
28 rides on the rising projection, the lever 20 is moved about the
pivot 25 to push the connecting rod 17 in the right-hand direction
as seen in FIG. 1. Thus, the wrapping rolls 12, 13 and 14 are moved
away from each other, and release the coin stack after the
completion of the wrapping operation.
The wrapping operation can be synchronized with the tape feeding
simply by aligning the rising projection of the cam disc 36 with
the raised portion of the cam discs 37, 37'.
With this arrangement, the wrapping operation is conducted in the
following manner:
the microswitch M.sub.1 is selectively switched to either side of
microswitch M.sub.2 or M.sub.3 with reference to the diameter of
the coins to be wrapped. When the actuater 44 abuts on the
circumferential periphery of the cam disc 37, 37', the
electromagnet unit is energized, thus allowing the driving roll 8
to feed the tape to the wrapping station which is now inoperative.
After a predetermined length of tape is fed, the wrapping station
starts to wrap the coin stack with the tape thus fed.
In a preferred embodiment, the arms 15 and 16 and the connecting
rod 17 are so designed and positioned that the connecting rod 17
and those arms and the associated pivots 21 and 22 form a
parallelogram.
In a preferred embodiment of this invention, the arms 15 and 16 and
the connecting rod 17 are so designed and positioned that the
opposite ends of the rod 17 and the pivots 21 and 22 are always
positioned on vertexes of a parallelogram and that the length from
the end 12 to the pivot 21 is identical with that from the end 13
to the pivot 22. In such construction, the wrapping rolls 12, 13
and 14 can be moved substantially at the same time and the same
amount.
In another embodiment of the invention, it is proposed to vary the
rotating speed of the driving roll 8 by means of a change-over
mechanism of transmission system. With reference to FIGS. 4 and 5,
such mechansim comprises a shaft 53 rotating with a pulley 52
driven by means of a V-belt 51. The shaft 53 carries toothed wheels
54 and 55 rotatably fitted thereon and a dog clutch 56 slidably
fitted thereon between said toothed wheels. Said dog clutch 56 is
so constructed that it is fixed in the rotating direction but
slidable in the axial direction relatively to the shaft 53 by means
of a key 57 carried thereon and it is selectively engageable with
either of the corresponding portions formed on the side surfaces of
said toothed wheels. When a electromagnet 58 is supplied with
electric current, a plugner 59 is attracted due to the energization
of said electromagnet, and consequently one end of a forked arm 61
is moved upward about a pivot axis 62 against the action of a
spring 63 by means of a spring 60, so that the other end of said
arm 61 is moved downward. The dog clutch 56, which engages with a
roller 64 supported on the end of said arm 61, is moved on the
shaft by the movement of said arm 61 until said dog clutch comes
into engagement with the lower toothed wheel 54, so that the
rotation is transmitted through the shaft 53, the dog clutch 56,
the toothed wheel 54, toothed wheels 65, 66 and 67 to a toothed
wheel 68, which drives the driving roll 8 which feeds the shorter
wrapping paper 2' to wrap the smaller diameter coins.
When the mechanism is set to wrap the larger diameter coins, the
electromagnet 58 is deenergized, so that the one end of the forked
arm 61 is moved downward under the action of the spring 63, while
the other end of said arm is moved upward. Accordingly, the dog
clutch 56 is moved upward to come into contact with the toothed
wheel 55, and thus the rotation is transmitted through the shaft
53, the dog clutch 56, the toothed wheels 55, 69, 65, 66 and 67 to
the toothed wheel 68. By constructing the gear ratio of this
toothed wheel train so as to obtain increased speed as compared
with the case of wrapping the smaller coins, the driving roll 8 can
be rotated at a suitable rotating speed to feed the longer packing
paper 2' within a constant actuating time to wrap the larger
coins.
Now, the description will be given to a mechanism for varying the
wrapping paper feeding amount by chaning the diameter of the
driving roll 8, with reference to FIGS. 6 and 7.
According to this mechamism, the driveing roll 8 is actuated under
the conditions of constant rotating speed and constant actuating
time, but the driving roll 8 having smaller diameter is used to
decrease the wrapping paper feeding amount in care of wrapping the
smaller coins, while the driving roll 8 having larger diameter is
used in case of wrapping the larger coins. As shown in FIG. 7, this
mechanism includes a shaft 71 which is rotatably supported at the
end of the lever 31 and has a driving toothed wheel 68' fixed on
the lower end thereof, to which the rotation is transmitted from a
driving source. The shaft 71 carried a driving key 72 which can
easily fit in the keyward formed in the inside surface of the bore
of the driving roll 8. Accordingly, the driving roll 8 is easily
movable in the axial direction to permit the interchange of the
roll 8' having different diameters, while it is fixed in the
rotating direction on the shaft by the driving key 72, so that the
driving roll 8 is rotated by the shaft 71 to feed out the wrapping
paper to wrap the coins.
From the construction of the present invention as explained above
it will be understood that the smaller amount of the wrapping paper
is supplied to the smaller coins and the larger amount of the
wrapping paper is supplied to the larger coins, to accomplish the
wrapping operation. Consequently, the coins having larger or
smaller diameters can be wrapped with more uniform and suitable
amount of the wrapping paper as compared with the conventional
paper feeding methods, so that the edges of the wrapping paper can
be tightened to form neatly curled portions and the satisfactory
strength can be obtained.
When a large amount of wrapping tape is fed to wrap a stack of
large diameter coins, the wrapping tape tends to wave on the guide
means to thus cause wrapping troubles. According to this invention,
it is proposed to enlarge the length of the guide passage. As shown
in FIG. 8, the guide passage 11 comprises two passage-length
adjustment cantilevers 11a and 11b pivoted at one ends 83 and 84
and positioned so as to overlap with each other at the other end.
The lower cantilever 11b is spring-biased by a spring 82 and thus
supports the upper cantilever 11a at the other end. A stopper 81
supported on an eccentric axel is positioned adjacent to the upper
cantilever for preventing the same from rising above. By turning
the stopper 81 about the eccentric axel, the passage-length
cantilever 11 is lowered to enlarge the length thereof. In another
embodiment, the cutter blade 6 is moved to the position 6' by
rotating the support 7.
* * * * *