US2366199A - Motion transmitting mechanism - Google Patents

Description

INVENTOR dohn Kunz 2 Sheets-Sheet l J. KUNZ MOTION TRANSMITTING MECHANISM Original Filed Aug. 5, 1940 Jan. '2, 1945.

Jan. 2, 1945. J KUNZ 2,366,199

MOTION TRANSMITTINGMECHANISM Origihal Filed Aug. 1940 2 Sheets-Sheet 2 INVENTOR John mm:

sheets.

Patented Jan. 2, 1945 UNITED STATES PATE NTOFFICE Mo'noN rRa snnf'rTmG MECHANISM j p John Kunz, Pittsburgh, Pa., ass igno r to Miller PrintingMachinery C'o.

poration of Pennsylvan Pittsburgh, Pa., a cor Original application Adust 3, 1940; Serial No.

350,705. Divided and this [17,1941, Serial No. 415,403

application October V This jinvention relates to motion transmitting mechanism. It relates more particularly to means for transmitting oscillatory motion. It. relates still more particularly toimeans for transmitting oscillatoryv motion from an oscillating driving member to an oscillating driven member while providing for control and adjustment of the relative amplitude of oscillation of said members. This application is a division ofiny co-j pending application .Serial No. 350,705,; filed August 3, 1940.

While the invention is of wide application I have found it to be particularly adaptable to. an inker and purely for purposes of explanation and illustration the invention will herein be. describedas applied to .an inker. An inker delivers ink to a printing form for printing The ink is delivered to the form by what are known in the art as form inking rollers or simply form rollers. In order to properly distribute the ink upon thejform rollers there are provided distributing rollers which contact the surfaces of the form rollers and oscillate or vibrate axially, these rollers being known in the art as vibrator rollers. Since the vibrator rollers are arranged with their axes extending transversely of the inker means must be provided for vibrating them in the trans-- verse direction. However, thepower to vibrate or. oscillate the vibrator rollers is ordinarily derived froma member which oscillates in a vertical longitudinal plane. Consequently oscillating motion has to be transmitted between a member oscillating in a vertical longitudinal plane and the vibrator rollers which oscillate in a horizontal transverse plane. l

Various means for transmitting the vibraterm or oscillatory 'motion from the driving means to the vibrator rollers have heretofore been provided and they have accomplished the function after a fashion. However, such means have in many cases been unduly complicated and expensive and ineflicient inoperation. {Deflnite' limitations have been imposed upon the I amplitude of vibration ofthe vibrator rollers.

description of apresent preferred embodiment of theinvention proceeds. 1

transmitted .efficiently and in] sucha wayas to provide "for maximum amplitude of vibration of the; vibrator rollers when. desired. Moreover; provision .is made for adjusting the amplitude of vibration of the vibrator rollers without change ing the amplitude ofoscillation of thedriving means and without necessitating stopping operation of the inker or the press with. whichthe efficientin operation and of low. cost..

inker is used. The mechanism is simple and Other details, objects and advantages of. the

invention-willbecome apparent as the following In the accompanying drawings-I have shown .a present preferred embodimentof the invention, inwhich 1 Figure 1 is a fragmentary elevational View of an inker showing my motion transmitting mechanism; and u c Figure 2 is a fragmentary vertical longitudinal cross-sectional view of a portion oi'the structure 3 shown in, Figure .1 but to enlarged scale.

Referring now more particularly to the -drawings, there. is shown an inker. having form rollers 4, 5 and fi for delivering ink to .aprinting.

form which oscillates horizontally in" contact withthe under surfacesof. such form rollers.

The inkis delivered to and distributed upon the form rollers by distributor vibrator rollers 28 and 29; The vibratorroller 28 engages theformj rollers land 5 and thevibrator roller 29 engages the form roller 6. The vibrator rollers maybe driven if desired, although the means for driving themif employed forms no part of the present in? vention and isnot shown. The vibrator rollers are vibrated or oscillated axially inoppositedirections, that is, when the roller 28 is moving away.

from the viewer in Figure 2 the roller29 ismov- .ing toward the viewer and" vice versa. Also means :is provided for altering within a wide range the amplitude of oscillation of the vibrator rollers. Such means and the means for oscillating the vibrator rollers will now be described.

Each of the vibrator rollers 28 and 2.9.is rotata'bly mounted in bearings. (not shown). in. the

inker frame... The bearings allow for axial vibra.

tion of the rollers during operation of the inker. Each roller has adjacent'one endthereof a circular cam groove within which is disposeda roller mountedon the opposite ends of a lever 2l6pivoted to the inker frame and, having integral therewith a bevel gear The respective rollersf2l5- are .rotatably is mounted in the frame and carries at one end a bevel pinion 226 meshing with the bevel gear 2I8. At its other end the stub shaft 219 carries a, spur pinion segment 22| meshing with a spur gear segment 222 'pivoted to the frame at 223 and having an arm 5 224 extending generally downwardly and longitudinally of the inker and carrying at its extremity a roller 225. Means presently to be described is provided for oscillatably swinging the arm 224 about theaxis of the pivot 223 whereby to oscillate the gear segment 222 and hence through the pinion segment 22! the bevel pinion 220 and the bevel gear 2H3 to oscillate the lever 2| 6 about its vertical pivot. Since the rollers 215 are in the circular cam grooves in the vibrator rollers 28 and 29 this oscillatory movement causes lengthwise oscillation or vibration of the vibrator rollers 28 and 29.

Mounted in the frame is a stub shaft 226 to which is fixed an arm 221 having at its extremity a fork 228 adapted to receive the roller 225 as shown in Figure 1. The shaft 226 is adapted to oscillate, such oscillation being imparted'to the fork 228 and through it to the roller 225'and the arm 224. The shaft 226 carries an arm 229 which is fixed thereto and which arm 229 has pivoted thereto at its opposite end at 230 a downwardly extending link or rod 23I carrying at its lower end a roller 232."The rod 21- is guided for generally vertical sliding movement generally longitudinally of itself by a guide collar 233' through which the rod passes and which is adapted to be adjustably 'positioned as will presently be described. The roller 232 rides within a hollow arm 234 fixed to a shaft 235 mounted in the frame. Also fixed to the shaft 235 is a generally downwardly extending arm 236 which lies and operates in a vertical longitudinal plane and. is adapted to be oscillated by the driving mechanism for the inker or press. The arm 236 'constitutes the source of power so far as the mechanism with which the present application deals is concerned.

Oscillation of the arm 236 causes oscillation of the shaft 235 and corresponding oscillation of the hollow arm 234 which is fixed to the shaft 235. This in turn causes generally up and down sliding movement of the rod 23l in the guide collar 233. This movement will, of course, be accompanied by some relative movement lon gitudinally of the hollow arm 234 between such arm and the roller 232.

If the guide collar'233 is moved toward the right, viewing Figure 1, the amplitude of oscillatory movement imparted by the mechanism just described to the shaft 226 and the arm 229 thereon will be increased because the roller 232 will then be cooperating with a portion of the hollow arm 234 farther removed from the center of turn ing 235 of such arm. Such movement of the guide collar 233 is provided for through its being pivotally mounted at 246 upon the lower end of an arm 24! fixed to a shaft 248 in the frame. Also fixed to the shaft 248 is an arm 249 carrying at its outer'extremity a spring pressed pin 250 adapted selectively to enter one of an arcuate series of holes 25l in a plate 252 forming a part of the frame. The series of holes 25| is arranged in an are about the axis of the shaft 248 and the spring pressed pin 250 may by pulling. it out of whichever one of the holes it may be in, turning the am 249 about the axis of the shaft 248 to another position and allowing the spring to project the pin inwardly, be positioned in any desired one of the holes 25l. When the pin 250 is in a hole near the upper end of the arcuate series of holes 25l the guide collar 233' is moved toward the right, viewing Figure 1, and the amplitude of oscillation of the shaft 226 is increased. The contrary is true when the pin 250 is in a hole near the bottom of the arcuate series of holes 25L Indeed. when the roller 232 is co-' 1 axial with the shaft 235 the shaft 226 will not be oscillated at all despite continued oscillation of the shaft 235.

Thus by a very' quick and simple manipulation the amplitude of oscillation or vibration of the vibrator rollers 28 and 29 may be adjusted. The means for vibrating these rollers and the means for adjusting the amplitude of vibration are such that a greater amplitude of vibration is provided for than has been feasible with mechanisms for the same purpose heretofore provided and amplitude adjustment may be effected throughout a wider range than heretofore. Moreover, the amplitude of vibration of the vibrator rollers may be changedduring operation of the mechanism without the necessity of stopping it to make the adjustment.

While I have shown and described a present 1. In combination, an angularly oscillatable member, a generally elongated oscillatable mem her, said members having a cam and follower connection whereby oscillation of one thereofcausesoscillation of the other, guide means for the generally elongated oscillatable member with respect to which such member is generally longitudinally slidable, upon oscillation andmeans for shifting the guide means generally transverseb'r of said generally elongated oscillatable member to alter the relative positions of the cam and follower during oscillation of said members and control the relative amplitude of oscillation thereof.

2. In combination, an angular-1y oscillatable member, a second member operatively connected.

with the oscillatable member to be oscillated V thereby but adapted while so connected to have its place of connection with the oscillatablemem ber shifted along the oscillatable member, guidev means having a slidable connection with the second member so as to allow the second member to partake of oscillatory movements imparted thereto by said oscillatablemember, and a bell crank lever one arm of which carries said guidemeans and another arm of which is shiftable whereby'to shift the place of engagement be tween the oscillatable member and the second member.

3. In combination, a slotted lever, a member operated by said lever having a portion engaging in and shiftable along the slot therein, guide means having a. slidable connection with said.

member, and means for shifting said guide means to shift the place of engagement of said member on the slotted lever,.said last mentioned.

means including a bell crank lever one arm of which carries said guide means and another arm of which is quickly shiftable to and-fastenable in any desired one of a number-of positions. 1 J r 4. In combination,v an angularly oscillatable .member, a generally elongated oscillatable me'mher, said members having a connection whereby oscillation of one thereof causes oscillation of the other, said connection including portions the position of saidadjustable pivotal connection Whose relation may be altered to alter the amplitude of oscillation of the driven member in 1 response to oscillation of predetermined amplithe generally. elongated oscillatable member Within which such member is generally longitudinally slidable upon oscillation and. means for shifting said guide collarto alter therelation of said portions.

tude of the driving member, a guide collar for along said Second mentioned arm, means including a rapidly shiftable operating member for shifting said guide means generally transversely of the link and means for maintainin said operating member selectively in a plurality of predetermined positions.

10. In combination, an 'angularly oscillatable "member, a, generally elongated oscillatable mm- 5. In combination, an angularly oscillatable member, a generally elongated oscillatable memher, said members having a connection whereby oscillation of one thereof causes oscillation of the. other, said connection including portions ing a rapidly swingable rotary operating memher for swinging said guide means generally transversely of said generally elongated oscillatable member to alter the relation of said portions and aplurality of means arranged at intervals along the path of said operating member for maintaining said operating member selectively in a plurality, of predetermined positions.

6. In combination, a pair of angularlyoscillatable arms, a link joining said arms, said link being pivoted to one of said arms and having a connection with the other thereof adjustable along the arm and guide means forthe link positioned intermediate the arms 'for determining the position of said adjustable connection along said second mentioned arm. i

7. In combination a pair of angularly oscillatable arms, a link joining said arms, said link being pivoted to one of said arms and having a connection with the other thereof adjustable along the arm and guide means for the link with respect to which the link is generally longitudinally slidable, the-link and the second mentiona] arm both turning and sliding relatively to each other upon oscillation.

8. In combination, a pair of angularly oscillatable arms, a link joining said arms, said link being pivoted to one of said arms and having a connection with the other thereof adjustable along such arm and whose position therealong determines the relative amplitude of oscillation of said arms, guide means for the link withrespect to which the link is generally longitudinally slidable, the link and the second mentioned arm both turning and sliding relatively to each other upon oscillation, and means for shifting the guide. means for adjusting said connection along said second mentioned arm.

, 9. In combination, a pairof angularly oscillatable arms, alink joining said arms, said link being pivoted'to one of said arms and having a connec-, tion with. the other thereof adjustablealong the arm, guide means 'for the link for determining ber, said members having a connection whereby.

oscillation of one thereof causes oscillation of the other, said connection including portions whose relation may be altered to alter the am-.

plitude of oscillation of the driven member in response to oscillation of predetermined ampli-- tude of the driving member, a normally stationary guide carrier, a guide for the generally elongated oscillatable member, said guide being carried by said carrierbut freely movable relatively thereto in response to changes in angularity of the generally elongated oscillatable member durin oscillation thereof, and means for shifting said carrier to alter the relation of said portions.

11; In combination, an angularly oscillatable member, a generally elongated oscillatable member, said members having a connection whereby. oscillation of one thereof causes oscillation of the other, said connection including portions whose relation may be altered toalter the amplitude of oscillation of the driven member in re-.

, sponse to oscillation of predetermined amplitude of the driving member,

oscillatable member, said guide being pivoted to said carrier so as to turn freely relatively thereto 1 in response to changes in angularity of the generally elongated oscillatable member during oscillation thereof, and means for shifting said carrier to alter the relation of said portions.

12. In combinatioman angularly oscillatable.

- member, a generally elongated oscillatable member, said members having a connectionwhereby oscillation of one thereof causes oscillation of the other, said connection including portions Whose relation may be altered to alter the amplitude of oscillation, of the driven member in response to oscillation of predetermined amplitude of the driving member, a bell cranklever, a guide for the generally elongated oscillatable member carried by one arm of saidbell crank lever, said bell crank lever being operable to shift said guide to alter the relation of saidportions, and means cooperating with theother arm of said bell crank lever, for positioning the bell crank leverseleca tively in a plurality of predetermined positions,

13. In combination, a pair of angularly oscillatable arms, a link joinin said arms, saidlink being pivoted to one of said arms and having a connection: with the other. thereof adjustable along the arm, a guide collar for the link within which "the link is generally longitudinally slidable during operation andmeans for shifting said guide collar to determine the position of said adjustable connection along said second mentioned arm.

. JOHN KUNZ.

a normally stationary guide carrier, 2. guide for the generally elongated

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