GB1384715A - Counting devices for working cycles - Google Patents

Abstract

1384715 Registering output of machines W ZINDLER [trading as LUMOPRINT ZINDLER K G] 21 Jan 1972 [1 Feb 1971] 3030/72 Headings G4D D1B2A and D1D5 In a device for counting the working cycles of a machine comprising a drive wheel 7 adjustable in accordance with a required number of working cycles, and delivering a signal when that number has been reached, an element 12 rotating in accordance with the working cycles of the machine has a drive member 11 arranged to drive the drive wheel 7 of a stepping unit, adapted to idle in the zero position of the counting device and having a cam track 13 with a recess 18 in which a signal lever 20 engages in the zero position of the counting device to deliver the signal. A counting device for a copying machine has a shaft 6 freely rotatable between a plate 1 and an arm 3 of a bracket 2, the shaft 6 has firmly mounted thereon the driving wheel 7, disc 8 and hub 15 of a pointer 16, the arm 13 carries a scale 17 corresponding to arcuate recesses 9 forming toothing which is interrupted at the zero position by a larger recess 10 and the disc 8 having a profile 13 corresponding with the toothing 9. A crank shaped cam 11 mounted on a roller 12 of the copying machine rotating for one revolution for each working cycle engages the recesses 9 for the intermittent drive of the wheel 7 which, with the disc 8, is locked in each position, including the zero position, by a roller 19 engaging the toothing 13. If single copies are required the counting device idles with the cam 11 inoperative within the recess 10 of the drive wheel 7 but if the pointer is set to indicate on the scale 17 the number of copies required, the wheel 7 will be driven intermittently counting down until at zero position the roller 19 enters the recess 18 and locks the drive wheel 7. The roller 19 which is rotatably mounted on a pivoted arm 20 is urged towards the cam profile 13 by a spring 22 and the tension released when the roller 19 enters the recess 18 causes the head 26 of a resilient hammer 25 to strike a bell 14 mounted on the shaft 6. The copier shown in Fig. 4 has the roller 12 provided with a flat 29 above which is continuously rotated a counterpressure roller 28 coupled by a belt 38 to roller 36 positioned above a stack of sheets 30. When the apparatus is switched on power through a switching arm 42 actuates a magnet 39 controlling a coupling 37 causing the roller 36 to engage a sheet and deliver it between the rollers 12 and 28 where it deflects the switching arm into engagement with contact 41 coupled to switch 33 at the same time causing roller 36 to become disengaged. When an original is fed between rollers 44, 45 it deflects switch 33 thereby actuating magnet 32 which releases lever 31 from recess 48' in the roller 12 whereby a spring 35 causes the roller 12 to rotate so that it engages the sheet with the continuously rotating roller 28 to deliver it simultaneously with the original into a treatment section 46.