发明名称 |
PRINT DEVICE FOR TYPEWRITERS AND LIKE PRINTING MACHINES |
摘要 |
The print apparatus comprises a character-carrying element of the 'daisywheel' type with flexible spokes which can be selectively positioned in front of a platen roller, a print hammer for moving a selected character towards the platen roller, an actuating solenoid for the print hammer and a damping mechanism which acts on the hammer after the printing of each character. The hammer is directly connected to a movable armature of the solenoid and is returned by a return spring. During the return phase, the armature displaces, against a travel limiting stop, a counteracting weight which is urged towards an intermediate stop by the force of a counteracting spring. A first damping element is disposed between the movable armature and the counteracting weight and a second damping element is disposed between the weight and the travel limiting stop. The two damping elements, operating sequentially, minimize the time required for the hammer to settle down. |
申请公布号 |
DE3666682(D1) |
申请公布日期 |
1989.12.07 |
申请号 |
DE19863666682 |
申请日期 |
1986.06.16 |
申请人 |
ING. C. OLIVETTI & C., S.P.A. |
发明人 |
FALCONIERI, REMO;GIANOTTI, ESTER GIOVANNI |
分类号 |
B41J9/42;(IPC1-7):B41J9/42 |
主分类号 |
B41J9/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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