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Патент USA US2135892

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Nov. 8, 1938.
K. E. GRANS‘TEDT
2,135,892
CIGAR MACHINE
‘Filed Nov. 8, 1959
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2 Sheets-Sheet l
Nov. 8, 1938.
K. E. GRANSTEDT
2,135,892
CIGAR MACHINE
Filed Nov. 8, 1934
2 Sheets-Sheet 2
2,135,892
‘Patented Nov. 8, 1938 ‘ I
UNITED‘ STATES PATENT OFFICE
2,135,892
CIGAR MACHINE
Karl Erik Granstedt, Stockholm, Sweden, assign
or to Aktiebolaget Formator, Stockholm, Swe
den, a corporation of Sweden
Application November 8, 1934, Serial No. 752,142
In Sweden November 10, 1933
6' Claims. (01. 131-39)
This invention relates to improvements in cigar
machines and more particularly cigar machines
of the kind having one or several manually
served parts having power members, such as, for
5 instance, a wrapper cutting mechanism or a
bunch compressing device.
It is an object of my invention to provide a
machine of the kind referred to with a perfectly
characters are used to designate corresponding
parts throughout the several views, Fig. 1- is a
plan view of part of ,a machine constructed in
accordance with the invention; Fig. 2 is an end
view of the machine viewed from line II—II of
Fig. 1, parts thereof being removed; Fig. 3 is a
front view of part of the machine; and Figs. 4
and 5 are different wiring diagrams.
Referring to the drawings, at the front side
10 which are likely to occur at manually served parts - of the machine frame I is‘ provided a cutting 10
of said machine. Though said safety device is pad 3 having a curved cutting knife 2. The cut
intended to be utilized at different manually served ’ ting pad is perforated and connected to a source
of suction, not shown, and, moreover, it is mov
parts of the machine, a wrapper cutting mech
able up and down to deliver cut-out wrappers
anism will be referred to hereinafter as exem
to a wrapper carrier, said arrangements being 15
15 plary, since the drawbacks affecting such mecha
nism are typical to those to be removed by the well known in the art and, therefore, further
description thereof is in the interest of brevity
present invention.
,
omitted. A pair of cutting rollers 4 are rotatably
Cutting mechanisms of a common type are pro
vided with a cutting pad and a reciprocating mounted on a slide 5 movable along a guide 6
20 cutting mechanism movable over said pad to cut on the machine frame. To the slide 5 is pivotally
out a wrapper from a tobacco leaf placed upon connected a link ‘I whichis, in turn, pivoted to
operating safety device, for preventing accidents
the cutting pad. After the cutting operation is
?nished the cut wrapper is transferred there
from, whereafter the remaining leaf parts must
25 be removed and another leaf or leaf part is placed
upon the cutting pad. Themain part of the
operations preceding and succeeding the cutting
operation proper are executed manually. There
by risks of accidents will arise. Moreover, the
30 operator being aware of this will hurry when ap
plying the leaf to avoid any touching of the
\ movable cutting members, and hence is not able
‘
to take proper care of work so that defective
\ leaves may be placed on the cutting pad or the
35 leaves may be applied in incorrect position.
Similar inconveniences will arise also at other
manually served parts of the machine, for in
stance at rotating moulding or compressing
drums where the ?ngers of the operator may by
40 inadvertence be injured.
_
.
.
It is a main object of my invention to remove
the drawbacks above referred to.
Another object of my invention is' to provide
a safety device operating accurately without
45 touching the hands ofthe operator and even
without the operator observing this ‘until the
machine has stopped, and thus without troubling
the operator in any way.
'
With these. and other objects not speci?cally
50 mentioned in view, the invention consists incer
a lever arm 8 which is pivotally journalled on
a pin 35 ?xed to the frame. A roller II on the
arm 8 runs in a guide groove l2 of a cam disc 9
which is keyed to- a shaft Ill. The shaft I0 is 25
rotatably journalled in the frame’ and a cam 24
is ?xed to said shaft. A pair of intermeshing
bevel gears 34 are arranged at the inner end
of the shaft l0 and one of said gears is integrally
formed with the cam 24. On the‘ inner extremity 30
of the shaft I0 is mounted a clutch member l3
which is axially displaceable but not rotatable
relative to said shaft. Between said clutch mem
ber and a ring 36 secured to shaft I0 is inter
posed a coiled spring 53 ,which urges the clutch
35
member 13 against another clutch member l5
keyed to a continuously rotating driving shaft l4,
coaxial with shaft ID. The bevel gears 34 drive
a shaft 31 which is adapted to drive several oper
ating mechanisms of the .machine, e. g. the 40
wrapper carrier 26 and a wrapping mechanism ,
to which said carrier transfers cut-out wrappers
from the cutting pad 3. '_ The wrapper carrier
26 is pivotally mounted in the machine frame
and provided with an arm- 60 which is actuated 45
by a cam 6i mounted on the shaft 31 so as to
swing the wrapper carrier between the cutting
pad. 3 and a cigar wrapping ‘mechanism (not
shown).
To actuate the clutch, a bell crank lever is 50
pivoted on a pin IS in the frame. One arm 38
- tain constructions, combinations and parts which
will be__ hereinafter fully described and then ' of said lever carries a roller 39 which runs in an
speci?cally set forth in the claims hereunto ap
pended.
56
-
'
In the drawings, in which similar reference
annular groove 40 of the clutch member l3 and
the other arm I‘! of the lever is pivoted to a link
It. The link [8 is pivotally connected to a lever 55
arm I!“ The lever arm i9 is pivoted on a pin
29 in the machine frame and its free end is inte
grally formed with ‘a weight 2|. A magnet core
22 is slidably and pivotally connected to the arm
l9 and enclosed by ancelectro-magnet 29.
Upon the cam 24 rests under the in?uence of a
spring 4| a rod 29 slidably mounted in the frame
below the weightdl. The shape of the curved
portion of the cam 24 and the angular position of
10 said cam relative to the cam disc 9 are such that
the rod is against the pressing action of the
spring 4| held in its uppermost position (Fig. 2)
during the part of the cycle of operation of the
machine that. follows upon the cutting-out of a
wrapper until the cutting rollers 4 are to be‘ ad
vanced over the cutting pad 9.‘
In the proximity of the cutting pad 9 is mount
ed an incandescent lamp 21 and opposite to the
lamp is mounted a photo-cell 29 so that rays of
20 light emanating from the lamp will fall upon
the light sensitive surface of the photo-cell.
" It is provided that the photo-cell indicated in
the diagram shown in Fig. 4 consist of the well
known type, the ‘resistance of which to electric
currents increases according to the decreasing
of the amount of light falling upon its light sen
sitive surface. The incandescent lamp and the
photo-cell are connected to circuits, each of which
is connected to a common main circuit._ The
circuit of the photo-cell includes a series resist
ance 29 and a relay 99 arranged to alternately
the spring 4| to move the rod 29 downwards. In '
case the operator should not then have withdrawn
her hands the weight 2i forces the arm I! and
link l9 downwards, the bell crank lever will
release the coupling I9, l9, the cutting mecha
nism is not advanced and the mechanisms driven
by the shaft 91 are arrested. If, however, the
operator retracts her hands before the begin
ning of the critical period now mentioned the
electro-magnet will immediately be magnetized 10
and it is able to retain the arm l9 in its upper
position, i. e. the clutch l9, l9 remains coupled
irrespective of the fact that the rod‘ 29 does not
support the weight 2|.. This is effected thereby
that the optical communication between the lamp
2‘! and the photo-cell 29 isrestored in due time,
the resistance of the photo-cell vis considerably
decreased, and' the primary current influences
'the relay 99 to close the main circuit. Should.
however,'the operator by inadvertence hold her
hands so close by the cutting mechanism already
in operation‘ that her hands might be injured
the optical communication will instantly be inter
rupted and the clutch i 9, l9 released. After the
cutting operation has been finished. there will
no longer be any risk of accidents. Then the rod
29 is automatically forced upwards by the can‘:
to support the weight 21 and consequently the
_cutting-out of the main circuit which will neces
sarily occur at the next tobacco leaf applying
' The photo-cell indicated in Fig. 5 is of the
well known type which generates a feeble cur
will not cause the clutch to be released and thus‘
the other mechanism of the machine will still
operate. The locking effect of the rod 29 is main
taineduntil the cycle of operation is finished
and the critical period above mentioned is to
rent in a circuit when its light sensitive surface
commence anew.
close and break a main circuit to which is con-,
nected the electro-magnet 29.-
‘ ,
f
.
is illuminated. To said circuit, termed the Dri
The abutting mechanismactuating the arm l9
mary ‘circuit, is connected a sensitive relay 9| ‘ may possibly be replaced-by a mechanism di
of well known structure which when its coil is rectly actuating a circuit, for instance the main
energized will closev a secondary circuit connected circuit as indicated in Fig. 4, according to which’
40
to the main circuit and including-a series resist
the cam 24 is adapted to periodically‘ move the rod
ance 92 and a relay 99 which is arranged to
29 to positively cause the relay 99 to close the
main circuit. __ Said closing takes place at the
same periods of the operating cycle as if the rod
alternately break and close the main circuit.
The electro-magnet 29 is connected to said main
circuit. It is in this case provided by way of
example that the rays of light are transmitted
from the lamp to the photo-cell by the-inter
mediary of re?ectors 9| and 92. Thereby it is
possible to arrange the lamp and the photo-cell
practically anywhere in the machine.
When using the wiring according to Fig. 4
the embodiment of the invention now described
operates in the following manner:
When-the cutting mechanism occupies its in
itial position shown in Figs. 1 and 3 the lamp 2'!
illuminates thesphoto-cell 29, the resistance of
which is, therefore, so slight that the current
of the circuit can in?uence the relay 99 to close
the main circuit, thereby causing the electro
magnet 29 to attract the core 22 which will couple
the clutch I 9, l9. Then the cam 24 holds the rod
29 in its raised position. When the operator
places a tobacco leaf on the cutting pad 9 her
bands will interrupt the optical communication
between the lamp 21 and the-photo-cell 29 and
29 had to actuate the weight 2|. \
when using the wiring diagram according to
Fig. 5, the cutting mechanism, the clutch, the
mechanical looking or abutting device, and the
electro-magnet ‘operate exactly in the same man
ner_as previously described, whereas'the opera-.
tions of the circuits are somewhat diil’erent. The
main circuit is maintained closed by the relay 99
when the secondary circuit is maintained closed,
which is the case when the sensitive relay 9| ‘is
actuated by the currentecarrying Primary circuit.
Said primary circuit is currentbcarryin‘g when the
lamp 21 illuminates the photo-cell 29, which when
a?etcte'd by rays of light generates a feeble cur
ren .
Though I have now described embodiments of
the invention relating to a wrapper cutting de
vice, it should be observed that my invention
is also applicable to other manually operated
parts of the machine, such as, for instance, bunch
compressors. Such bunch compressors are, for
then the resistance‘of the latter will increase so instance, described. in- my United States Patent
that the intensity of current inthe primary cir
No. 1,982,292, dated November 27,, 1934. The
cuit is decreased to such a degree that the relay ‘ bunch compressingdrum 42, shown in 151g. 1. has
will break the main circuit and the coil of the a plurality of peripheral Dockets 49 into which
70 electro-magnet is demagnetized. Then the mag
- net core 22‘cannot ‘support the rod l9, but never
theless the rod cannot fall down as the weight 2|
rests on the rod 29. when the cycle of operation
has proceeded so. far that ‘the cutting mecha
79 nism is about to advancev the cam 24 will permit
the bunches are inserted manuaily'by the oper 70
ator. The drum 42 is ?xed to the shaft 99 which
is rotatably Journalled in the machine frame and
carries an eccentric 94 embraced by a strap 44
which latter is connected to a rod 49 pivoted
to the arm 49. Stepwiserotary movement is im 75
3
2,135,892
parted to the drum 42 by a Genevawheel G4,for driving said mechanisms in timed relation
secured to the shaft 63, driven by the shaft ID. ship to perform repeated successive operations,
The arm 46 is pivotally connected to the ma
chine frame I and is loosely v?tted within an open
ing 41 in a sliding rod 48. The rod 48 is recipro
cally movable in a guide 49 in the frame and
formed integrally with a die 50 which is recessed‘
in accordance with the shape of the bunches to
vbe compressed. The incandescent lamp 21 and
the photo-cell 28 are arranged to emanate and
receive, respectively, rays of light passing over
the die 50- in the proximity of the drum 42. The
shape and angular position of the eccentric 43
in which the bunch compressing tool moves to
and from the die, means for arresting said driv
ing means,- control means including a light-sen
sitive device and a source of light for controlling.
said arresting means according to whether the
light sensitive means is shielded from said source
of light by a human hand in the proximity of
said die, and automatic means including a latch
member operative in timed relation to said joint
driving means to hold said arresting means out
, of operation when said compressing tool is su?i
on the shaft - III are such relative to the cam‘ ciently removed from said die to allow safe man-.
ual access to said die so that the cycle of op 15
15 (Fig. 2) that if‘the optical communication be
erations of the machine continues while the light
when the die 50 is about to advance into a sensitive means is shielded until the die tool is
pocket 43 the rod 25 (Fig. 2) will permit the arm about to approach dangerously close to the die.
4. In' a cigar machine, a die, a mechanism
19 to fall down and ‘the machine is stopped.
20 Consequently, if the hands of the operator are, having a tool which is adapted to coact with
in the proximity of the die when-the latter is said die, another mechanism having a tool, 'a
about to advance there is no risk that her hands joint means for driving said mechanisms in timed
tween the lamp and the photo-cell is interrupted
will get crushed.
relationship to perform repeated successive op
.
Of course, the rays of light transmitted from
the lamp to the photo-cell may be invisible.
I claim:
,
‘
erations, said driving means including, a clutch,
clutch releasing means, control means including
a light sensitive device and a source of light for
controlling said clutch releasing means accord
ing, to whether the light sensitive means is shield
1. In a cigar machine, a die, a mechanism hav
ing a tool adapted to coact with said die, an
other mechanism having a tool, a joint means ed from said source of light by a human hand
30 for driving said mechanisms in timedrelationr in the proximity of said die, a latch member,
ship to perform repeated successive operations in and automatic means operative in timed rela-“
which the die tool moves to and from said tion to said joint driving means for intermit
die, means for arresting said joint driving means,‘ tently moving said latch member to hold said
control means including a light-sensitive device clutch releasing means out of operation when
the tool that cooperates with said die is su?i
and a source of light for controlling said arrest
ciently removed from said die to allow safe man
ing means according to whether the light sensi
tive device is shielded from the source of light ual access to said die so that the cycle of op
by a human hand in the proximity of said die, _ erations of the machine continues while the light
and automatic means including a latch member sensitive means is shielded until the die tool is
operative
in timed relation to said joint driving about to approach dangerously'close to the die. 40
40
5. In a cigar machine, a die, a mechanism
means to hold said arresting means out of opera
tion while the tool that coacts ‘with said die is having a tool adapted to coact with said die,
su?iciently removed from said die to allow safe another mechanism having a’ tool, a joint means
manual access to said die so that the cycle of for driving said mechanisms in timed relation
ship to perform repeated successive operations 45
45 operations of the machine continues while the
light sensitive means is shielded until the die tool in which the die tool moves to and from said
is about to approach dangerously close to the die. die, said driving means including a clutch, an
2. In a cigar machine, a wrapper cutting die, electric circuit, electromagnetic means connected
a wrapper cutter, a mechanism for moving said in said circuit for controlling said clutch, means,
wrapper cutter across said wrapper cutting die, including a light sensitive device and a source
50 a leaf carrier, mechanism for moving said leaf of light, for controlling the said electromagnetic 50
means according to whether the light sensitive
carrier into and out of position above said wrap
per cutting die, a joint means for driving said means is shielded from said source of light by
mechanisms in timed relationship to perform re
a human hand in the proximity of said die, and
peated
successive operations, in which the cutter automatic means including a. latch member op 55
55 moves to
and from the die, means for arresting erative in timed relation to said joint driving
said joint driving means, control means includ
means for intermittently holding said control
ing a light sensitive device and a source of light means out of operation when the tool that co
, for controlling said arresting means according to acts with said die is sufliciently removed from
60
60 whether said light sensitive means is shielded said die to allow safe manual access to said die
from said source of light by a human hand in so that the cycle of operations of the machine
the proximity of said wrapper cutting die, and continues while the light sensitive means is
automatic ‘means including a latch member op
shielded until the die tool is about to approach
erative in timed relation to said joint driving
dangerously close to the die.
’
6. In afcigar machine, a die, a mechanism. 65
having a tool adapted to coact with said die,
-tion when the wrapper cutter is sui?ciently re
moved from the cutting die to allow safe manual another mechanism having a. tool, a; joint means
access to said die so that the cycle of operations . for driving said mechanisms in timed relation
of the machine continues while the light sensitive ship toperform repeated successive operations
70
70 means is shielded until the die tool. is about to in which the die tool moves to and from the die,
said driving means including a clutch, clutch
approach dangerously close to the die. '
'
65 means to hold said arresting means out of opera
3. In a cigar machine, a bunch compressing ‘ operating means, an electric circuit, electromag
netic means connected in said circuit for con
trolling said clutch operating means, a switch
75 another mechanism having a tool, a joint means in said circuit for controlling said electromag
device havinga die, a bunch compressing tool,
a mechanism for moving said tool into said die,
4
,
_
~
2,185,898
'netic' means, means, including a light sensitive
her to hold said control means out of operation
device anda source of light, for controlling said. when the tool that coacts with said die is will
switch to control said electromagnetic means to "\cciently removed from said die to allow safe man
control said clutch operating means when the ualmvaccess to said die so that the cycle of op
‘light sensitive means is shielded from said source erations of the machine continues while the light 5
of light .bya human hand in the proximityci sensitive means is' shielded until the die tool is
‘said die, a latch member, and automatic means about to approach dangerously close to the die.
operative in timed relation to said joint driving
4
means for intermittently moving said latch mem- (
'
KARL ERIK GRANBTKUI‘.
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