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    • 29. 发明专利
    • ELECTRIC NUMBERING APPARATUS
    • JPH0687257A
    • 1994-03-29
    • JP23721192
    • 1992-09-04
    • BROTHER IND LTD
    • SAKAKIBARA KAORU
    • B41J7/34B41K3/10
    • PURPOSE:To reduce power consumption with a simplified mechanism by decreasing necessary actions for character selection by installing movable latches which are engaged to character wheels and movable character selection cams having recessed parts which are positioned corresponding to the respective character wheels to disengage the latches from the character wheels selectively in sequence. CONSTITUTION:A character selection cam 14 is turned to disengage a latch 15 from a character wheel 10, so that the cam follower 15b of the latch 15 enters a recessed part 16 on the character selection cam 14 to disengage the engaging part 15a of the latch 15 from the engaging nail 10b of the character wheel 10. The character wheel 10 is turned in the A direction by an angle corresponding to the displacement from the end of the rotation of the character selection cam 14. The rotation of all the other character wheels 10 is stopped by the latches 15, and the engagement and disengagement with the nail 7a of the character wheel shaft 7 are repeated by a character spring 11 to produce a print 18. The character selection cam 14 is rotated again and a positioning part 19 stops at the position to lift the latch 15 for holding the character wheel 10.
    • 30. 发明专利
    • ELECTRONIC NUMBERING DEVICE
    • JPH0640136A
    • 1994-02-15
    • JP19536492
    • 1992-07-22
    • BROTHER IND LTD
    • SAKAKIBARA KAORU
    • B41J7/48B41K3/10
    • PURPOSE:To simplify the whole of a mechanism by reducing letter selecting actions, by a method wherein a letter selection cam moving along a groove in a letter selection cam shaft following a rotation of the letter selection cam shaft is moved up to a typing wheel which is to change by a fixed quantity. CONSTITUTION:A letter selection cam 16 is moved by controlling a stepping motor 19, the stepping motor 19 is reversed at a specified figure position and a letter selection cam shaft 11 is turned in the direction of an arrow B At this time, power is transmitted to a typing wheel 7 through the letter selection cam 16, a typing wheel cog 7c is turned by pushing up a typing wheel claw 17, after the typing wheel 7 is turned by a specified amount based on monitoring data of an encoder and photointerpreter, the stepping motor 19 is turned again in the direction of an arrow A and then the letter selection cam 16 is moved to the figure which is to change. A printing face 24 is set up in order to a printing position by repeating the above action, after the selection cam 16 is moved up to the initial position provided on a part of a typing wheel supporting plate and at a point of time when the same becomes a waiting condition, a letter selection process is completed.