US3044314A - Control mechanism - Google Patents

Description

July 17, 1962 K. A. KLINGLER CONTROL MECHANISM 4 Sheets-Sheet 2 Filed Feb. 8, 1957 .1! for)? e ys Invenfor iiar/ J. filing/)" yjfi'rfief @rzer July 17, 1962 K. A. KLINGLER CONTROL MECHANISM 4 Sheets-Sheet 3 Filed Feb. 8, 1957 J7? yen for Ifar? J7. fiiz'ny/er United States Patent 3,044,314 CONTROL MECHANISM Karl A. Klingler, 111 S. Wright St., Naperville, 11]. Filed Feb. 8, 1957, Ser. No. 638,966

5 Claims. (Cl. 74-131) My invention relates to improvements in control mechanism and has for one object to provide means to perrnit an operator, from a central position, to positively and accurately, within a 'very narrow range of variation, control the operation of a plurality of movable elements. My invention, for example, may well be used to control or adjust a doctor bar or ink fountain adapted to supply ink to a printing press.

. Another object of the invention is to provide a single station, multi-element, remote control mechanism.

Another object of my invention is to provide in combination with a single control station remote control mechanism which will control micrometrically the position or operation of a plurality of control elements.

Another object of my invention is, by remote control, to control the angular rotation of a shaft which may be threaded for longitudinal movement or. may carry an element, the angular position of which requires adjustment.

3,044,314 Patented July 17., 1962 Screws 6 are threaded inthe doctor bar frame adjacent the doctor bar and rotatably mounted in the supporting yoke 7 which is carried by the doctor bar frame 3. Each screw has rigidly attached thereto a sleeve 8. Rotatably mounted and held against longitudinal movement on each sleeve are opposed driving clutch discs 9, 10 angularly toothed in opposite directions. Sliding on the sleeve 8 is a clutch sleeve 11, held against angular displacement with respect 'to the sleeve 8 by a plurality of balls 12 held in position by springs 12a and free to move very easily-longitudinally of the sleeve 8 while being positively held against angular displacement with rsspect thereto. Fixed on the sleeve 11 are driven clutch discs 13, 14 toothed in opposition respectively to the driving clutch discs 9 and 10. The ratchet teeth between discs 9 and 13 cause drive in one direction, those between discs 10 and 14 cause drive in the opposite direction. The hubs of the discs 13, 14 are spaced apart to provide a slight clearance for the clutch displacing lever as will later appear.

Downwardly depending from each of the discs 9 and 10 is a toothed gear segment extension 15. Rollers 16, 17 fixed in position and supported between and below the clutch discs by brackets 16a support parallel roller chains 18 and 19 meshing with gear segments '15. As the chains are moved longitudinally the driving clutch discs 9 and 10 will rotate. The rollers hold the chains in proper engagement with the toothed gear segments.

Other objects will appear from time to time through- A out the specification and claims.

My invention is illustrated more or less diagrammatically in the accompanying drawings, wherein:

FIGURE 1 is a detail section through a printing press with parts omitted illustrating an application of my invention;

FIGURE 2 is a plan view with parts omitted of a battery of adjusting screws and the drive mechanism embodying my invention;

FIGURE 3 is a section along the line 33 of FIG- URE 2;

FIGURE 4 is a section along the line 4-4 of FIG- URE 3;

FIGURE 5 is a section along the line 5-5 of FIG- URE 4;

FIGURE 6 is a section along the-line 66 of FIG- URE 4;

Like parts are indicated by like characters throughout the specification and drawings.

I have for convenience and clarity illustrated my invention as applied to a printing press but I want it understood that my .invention is not limited to such application.

Referring to FIGURE 1, 1 is the frame of a printing press carrying the roller 2. 3 is the doctor bar frame supported at 4 on the press frame 1 and carrying a flexible doctor bar 5 which may contact the roller 2. Adjusting screws 6 are spaced along the doctor bar 5 and the points of the screws are adapted to engage the doctor bar adjacent the roller and urge the flexible doctor bar toward the roller. The spring of the doctor bar would normally bias it away from the roller and the pressure of the adjusting screws overcomes that bias to position the doctor bar with respect to the roller.

Each chain 18 and 19 is anchored to the opposite ends of a lever 20, keyed to a shaft 21 in bearing 22 and carrying at its upper end an actuating lever 23 limited to movement between stops 24, 25. 26 is a driving solenoid connected to the lever 23 by a link 27 in opposition to a tension spring 28. In the starting position the spring 28 biases the lever against stop 24. The solenoid 27 can move the lever 23 into engagement with the stop 25.

The opposite ends of the chains 18, and 19 are anchored on a lever 30 fulcrumed at 31 on a stirrup member 32 slidable in the support 32a. The spring 33 is compressed between the upper end of the stirrup 32 and the head 34 of the tension screw 34a, tension being adjusted by the nut 34b to hold the chains tight to operate as racks in mesh with the gear segments 15. Actuation of the solenoid moves the chain 19 in a right hand direction and the chain 18 in a left hand direction viewed in FIGURE 2, thus rotating the driving discs 9 and 10 in opposite directions through a very small angular excursion. Assuming that the driven discs 13, and 14 are in the neutral position, movement of the chain will have no driving eli'ect on the screws. The clutch discs 13 and 14 being both rigid on the sleeve 11 move in unison.

If moved to the left in FIGURE 4, drive is by the chain 18 in one direction.

If moved to the right in FIGURE 4, drive is by the chain 19 in the opposite direction.

Fixed in frame 7, immediately above each screw 6 is an abutment shaft 36 which supports a flexible clutch lever 37 bifurcated at its lower end to penetrate between the clutch discs 13 and 14. A button 38 on each lever is yieldingly pressed against the end of the three step cam body 39, rotatable on the shaft 36. When the button 38 is in engagement With the central step, the clutch is in neutral. When in engagement with the lower step in FIGURE 6, the lever throws the clutch 14 into engagement. When in engagement with the upper step in FIGURE 6, the lever 37 throws the clutch 13 into engagement. The bias of the spring lever 37 to the right insures contact of button 38 with the cam surfaces. Buttons 40 on the bifurcated ends of the spring lever 37 are of such size as to fill the space between the clutch discs 13 and 14.

The actuating finger 41"eXtends radially from the cam body 39 and'isin'general alignmentwith theend of the sleeve 8. Limit fingers 42 are positively attached to the enlarged endof the sleeve ,8 and extend upwardly, on

each side of the sleeve int'o the path of thejfinger 41 as shownin" FIGURE 3 sotliat whenithe -s1eev'e= 8 rotates in either direction to bring the finger42"into'engagement with the finger 41, it will move the-cam 39 back to the neutral position, "thus *cliselngaging the clutchleaving the'screw 7 in its positionfofmaiiinium angular displacenient. Thus every *time the solenoid is energized the 'two chains or racks move "a short-distance in'oppo'site directions impartingangularniovementin opposite directionsto the gear segments in mesh with them. If the clutches are 'infneutralmo rotationfof any of 'the screws would occur, but with respect to any clutch in driving position the screw manned with the clutch will be rotated in,consonance with'the'rack movement. Since each clutch pair can be separately and independently moved out of the neutral position in either directiornthe clutches can beset to cause each screw to be retracted or withdrawn as desired. The cam 'body 39 may be "set' or rotated "to the desired central position byany suitable control device such as the push-pull wire cable terminating at finger'41 and'actuate'd from a-distant'controlpoint.

I claim:

1. In combination, a shaft'mounted for rotation, op-

posed ratchet toothed driving clutch members free to rotate on and held against-longitudinal movement with respect to the shaft, a-ratchet toothed driven clutch member in opposition toeach of the'driving members free rs-move longitudinally along the shaft but heldagainst rotary movement with respect thereto, the driven members being adjacent to-and back to back, an actuating leverterminatingin a contactelementbetween and in 'simult aneous contact with both'the driven members, the V actuating lever comprising spring plate biased in clutching direction with respect toone of the driven members.

"'2.'-In combination, ashaft mounted for rotation, 01:- posed ratchet toothed driving clutch members free'to "rotateon a nd 'held against lon gitudinal rnovcnrent 'with respect to the'shaft, 'aratchet toothed driv'en'cluch memher in opposition to each of the driving members free to rnovelongitudinally-along theshaft but held against rotarymovementwithrespect thereto, the driven members b'eingadjac'ient to each other and back to back, an

actuating lever terminating in a contact element'bet we'en ing clutch member free to rotateon but held against Iongitudinal movement with respect to the shaft, a driven clutch member inopposition 'thereto, free tomove longitudinally but held against rotary movement on the shaft, a clutch lever adapted to reciprocate the driven member, means for rocking :the lever including a rotary cam member; a finger extending from the cam member toward-"and terminatingjnst short of theshaft, a stop plate rigidly; mounted on the shaft in the path of'the finger adapted to rotate-the cam tone'utral position upon contact of stop member and finger.

4. In combination, 'a'shaft mounted'for rotation, a driving clutch member free to rotate on but held against longitudinal movementwith respect to the shaft, adriven clutchmeniber in opposition thereto, free to move "lon gitudinally but heldagain'st rotary movement o'n'the' shaft, a clutch lever adapted to reciprocate the driven member, means for rocking the lever includingarota'ry camniemher, a finger extending'frorn 'the"carn member toward and terminating just short ofthe shaft, astopTplaterigidly mounted on the shaft in the path 'of the Tfinger adapted to rotate the cam toneutralposition upon contact of 'stOp'memb'er and finger, the means for holding the driven member. against rotary movement on the 'shaftc'omprising registering segmental channels longitudinal ofthe shaft between the shaft-and the driven member, balls extending between the "shaft and "the driven member interlocking with the channels and yielding means holding said balls against-longitudinal movement inthe channels.

5. In combination, a threaded adjustment pin and'driving'means for selectively rotating-it in forward andreverse direction, control'means for such drivingme'a'ns including a rotary element adjacentthe'pimlimiting stop means mounted on and rotatablewiththe pin adapted when the-pin reaches the limit' of its Frot'aryexcursion in either direction. to positively move the control means into the neutral position, the control "means-including a finger projecting toward thepin, the stop means including a plate rotatable with the pin in the path of'thefinger.

References Cited the file of this'patent UNITED STATES PATENTS 534,580 Robinson Feb. 19, 1895 659,810 Cherry Oct. 16, 1900 842,416 Nelson Jan. 29, 1907 1,389,347 Gardiner Aug. 30, 1 921 .1 1 3 1 ,Fdster 1 .3 .1 .1 .3. 2,309,669 Poorman F6b 2,: 9 4 3 2,351,315 Barber --June'13, 1944 2,392,558 Souche L. 12311.;8, 1946 2,410,708 Breither et al. Nov. 5,1946 2,497,648 Worthington Feb. 14, 1950 2,540,222 Tilton Feb. -6, 1 2,826,926 Singer Mar 18, 1958 2,891,409 Hansen June 23;1959

FOREIGN PATENTS 770,567 France Sept. 1 7,1934 189,717 Switzerland 'Mar; 15, 1937

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