Value setting mechanism, particularly for franking machines

Details Value setting mechanism, particularly for franking machines Value setting mechanism, particularly for franking machines

1980-02-04

1982-05-25

Pieprz, William

Printing

Selective or progressive

Rotary machines

B41J 708, B41J 796, B41J 2970, B41L 4756

Patent

active

043310753

ABSTRACT:
A value setting mechanism constituting an interface between printing mechanism and an electronic accounting system in a franking machine has each value precisely set without possibility of alteration during a printing cycle. A four digit value can be set by rotating thumb wheels that transmit the value to encoding switches and printing elements. A spring loaded locking bar lies between aligned recesses on the wheels when properly set. To initiate a cycle a trip lever is electromagnetically moved from a first position to a second position releasing a clutch pawl to actuate the printing elements via a clutch and to close switches. If bar fails to enter aligned recesses, a detent unit prevents the trip lever from moving to the second position. When it does so move, an arm thereon inhibits detent unit from moving in a direction to allow bar to withdraw from the aligned recesses.

REFERENCES:
patent: 3563171 (1971-02-01), Heisner et al.
patent: 3589281 (1971-06-01), Woodhead
patent: 3623426 (1971-11-01), Gruss
patent: 3823666 (1974-07-01), Hanson
patent: 3824922 (1974-07-01), Van Acker
patent: 3826190 (1974-07-01), Zofchak
patent: 3865026 (1975-02-01), Trout
patent: 3881411 (1975-05-01), Araki et al.
patent: 4050374 (1977-09-01), Check
patent: 4056054 (1977-11-01), Feldman

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