US1660527A - Means for driving the shafts of cigarette machines - Google Patents

Description

Feb. 28",i 1928.

f 1,660,527 c. F. RBl-:R

MEANS FOR DEIIVI'NQTHE sHAETs 0E CIGARETTE MACHINES Fil'e v4'July 18', 1924 Patented FebaZS, 1928i. l' n v umrEnsTArEs 1,660,527 PATENT OFFICEY v`coNsrnNcLrN FRIEDRICH RRER, or DRESDEN, GERMANY; AssiGNoR To UNIVER- GERMANY.

. ELLE" CIGARETTENMAscHINEN-EABRIK, J. o. linfin-LER & ooi, 70E nREsnEN,

MEANS EORDRIVING 'rHEsHAErs 0E CIGARETTEMAGHINES.

Application filedk July 18, y1924, Serial No.

This invention relates to means for intermittent driving of the `shafts of cigarette machines and in particular the coiling mandrels of cigarette shell or case machines. l

In intermittent rotation it is usual in the art to employ a rack adapted yto be reciprocated suitably (for example by means of a crank and connecting rod m-echanism) which meshes with a pinion mounted on the shaft. If unidirectional rotation of the shaft is desired then during its return movement the' rack is brought out of engagement with the pinion. `The ceiling mandrel of cigarette shell machines has already been l5 driven in this way.

Under the present invention a rack is used for driving the shaftof the coiling mandrel but in accordance with thev present invention this rack is connected with a parallel. crank 2O and'connecting rod mechanism in such manner that the rack is moved in a plane which is normal to the plane of the pinion to be driven. Thus the line of the d-ead centres of the double crank and connecting rod mechanism lies in the plane of the pinion to be driven. As a result the rack in its movement into and out of engagement withv thel teeth of the pinion to be driven performsa movement transverse to the plane of thepinion to be driven at themoment when the 'displacement of the rack in the direction of the plane of the pinion to be driven is equal to zero or approximately equal to zero. The parallel crank and connecting rod mechanism ensures a uniform movement of .l the points of the rack which all perform the same circular movement. f The rack does not require to be raised or lowered so that the controlling means which would otherwise bev gages with this pinion at regular intervals inl a manner to be described subsequently.

crank pins 7 8 with two crank discs 9 and 10 rotating in a horizontal plane. The crank discs are mounted on the vertical spindles 11, l2, of which spindle 12 is driven by the The ends of the rack are connected by the 7a6,888,.an 1 inwcafnmniy March 22, 1824.

bevel gearV 13, its rotary movement being transmitted through the pinions 13a, 14E, and 15 Ion the spindle 11.

The line connecting the dead centres ofl the crank discs the crank pins move into the other vdead y, centre positionthe rack 6 passes directly'in front of the pinion 5 to vbe driven. The rack thus has a movement substantially at-right angles tothe plane of the pinionv 5 so that the teeth of the` rack engage in a smooth and'frictionless manner withl the teeth of the pinion 5. The same may be said of the disengaging, movement of the rack from the teeth of the pinion 5.

Having now particularly ydescribed and ascertained the nature of my said invention and lin what manner the same is to kbe performed, I declare that what I claim is 1. In an intermittent motion mechanism, a pinion adapted to be rotated intermittently inone direction, a rack adapted to engage said pinion, means for imparting longitudinal movement to the rack, and causing a sidewise movement to the rack in the same planewith the teeth of the pinion, whereby said rack will engage said pinion for driving it during the longitudinal movement thereof in one direction and will be moved into and out kof engagement therewith by said side- Wise movement. y

2. In an intermittent .motion mechanism, a

pair of spaced crank disks, a connecting rod therebetween including a rack, means for rotating said disks so as to impart longitudinal and sidewise reciprocations .to said connecting rod, a pinion adapted to be engaged to be rotated by said rack during its longi-f tudinal movement in one direction and to be disengaged from the rack by the sidewise movementthereof in one direction yand to be engaged again bythe sidewise-movement in the opposite direction following the return longitudinal reciprocating movement.

3. In an intermittent motion mechanism, a

pinion adapted to be rotated intermittently in one direction, a rrack adapted to engage said pinion, .means for imparting longitudinal reciprocation to said rack, and causing a sidewise reciprocation to said rack infa pla-ne with the teeth ot theipinion `and -toca'nse the rack disengage the pinion,

4i. in an intermittent motion mechanism, a pinion adapted to be rotated intermittently in one d'rection, apair off spaced cnzinkdisks,` a connecting rod including a rack, means` for rotating said disks Aso as to impart 1ongitudinai and sidewise reciprocation to saidV- connectingl rod, said `sideivise reciprocationV 'being in a pla-ne with the teeth of vthe pinion,

ing said pinion, 'means toi' imparting longi-` tiidinal reciproca-tions `to said rack andv sii'nnltaneonsly causing the rack to move in a pia-ne parallel withV the teeth of the pinion,` w-hei'ehy :the "pinion is rotated `by 4theyreck dn-ring its entire longitudinal movement in.

one direction and to be engaged and disengaged therefrom by the sidewise movement at the Jheg-inningand tending of the 1ongitudnai movement.

an elongated pinion adapted to be rotated in- Yeimittentiy in one direction, a rack `adapted `to `en-gage lsaid i-pinion,l means for impartin a longitudinalreciprocation to said rack ancgl einiidtaneously" causing the rack fto move 6.111 anintermititenbmetion. mechanism,

sideWise in a plane with the teeth of th'epinion` and to cause the rack to disengagethe pinion when at a point oit' its ,movement in one direction and'to engage the rack atthe 'beginning fot' its movement in the saine direcf tion. o In testimony whereof I atix my signature. CONSTANTIN FRIEDRICH RBERQ

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