Патент USA US2135892код для вставки
Nov. 8, 1938. K. E. GRANS‘TEDT 2,135,892 CIGAR MACHINE ‘Filed Nov. 8, 1959 v; lY sin a g H___ H 12.» m ,. a; __ I. 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‘.