JPS5627376A - Printing hammer mechanism - Google Patents

Printing hammer mechanism

Info

Publication number
JPS5627376A
JPS5627376A JP10341179A JP10341179A JPS5627376A JP S5627376 A JPS5627376 A JP S5627376A JP 10341179 A JP10341179 A JP 10341179A JP 10341179 A JP10341179 A JP 10341179A JP S5627376 A JPS5627376 A JP S5627376A
Authority
JP
Japan
Prior art keywords
printing hammer
printing
increased
hammer mechanism
natural frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10341179A
Other languages
Japanese (ja)
Inventor
Kunio Kitagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10341179A priority Critical patent/JPS5627376A/en
Publication of JPS5627376A publication Critical patent/JPS5627376A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the printing hammer mechanism with high printing speed by a method wherein the sectional area of a part becoming the magnetic path of the printing hammer is made larger than that of the other part and thereby the natural frequency of the printing hammer is increased.
CONSTITUTION: A rectangular plate spring 15 wherein the thickness of the part 10 on the free-end side which becomes the path of a magnetic flux and is near to yokes 2 and 3 is larger than that of the other part 11 is employed. So as to equalize a spring constant to the one of a printing hammer so far used, the length of the part 11 is needed to be shortened. Thus, the mass of the printing hammer 14 is lessened considerably and the natural frequency is increased, whereby the printing speed can be increased.
COPYRIGHT: (C)1981,JPO&Japio
JP10341179A 1979-08-13 1979-08-13 Printing hammer mechanism Pending JPS5627376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10341179A JPS5627376A (en) 1979-08-13 1979-08-13 Printing hammer mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10341179A JPS5627376A (en) 1979-08-13 1979-08-13 Printing hammer mechanism

Publications (1)

Publication Number Publication Date
JPS5627376A true JPS5627376A (en) 1981-03-17

Family

ID=14353301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10341179A Pending JPS5627376A (en) 1979-08-13 1979-08-13 Printing hammer mechanism

Country Status (1)

Country Link
JP (1) JPS5627376A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509421A (en) * 1982-07-23 1985-04-09 Citizen Watch Company Limited Printer head for a dot line printer
US4527469A (en) * 1983-04-15 1985-07-09 Dataproducts Corporation Dot matrix print actuator
US4995744A (en) * 1988-12-16 1991-02-26 International Business Machines Corporation Impact printer actuator using magnet and electromagnetic coil and method of manufacture
US5237918A (en) * 1987-05-09 1993-08-24 Hitachi Koki Co., Ltd. Printing head in a dot-line printer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141018A (en) * 1975-05-29 1976-12-04 Canon Kk Printing hammer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51141018A (en) * 1975-05-29 1976-12-04 Canon Kk Printing hammer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509421A (en) * 1982-07-23 1985-04-09 Citizen Watch Company Limited Printer head for a dot line printer
US4527469A (en) * 1983-04-15 1985-07-09 Dataproducts Corporation Dot matrix print actuator
US5237918A (en) * 1987-05-09 1993-08-24 Hitachi Koki Co., Ltd. Printing head in a dot-line printer
US4995744A (en) * 1988-12-16 1991-02-26 International Business Machines Corporation Impact printer actuator using magnet and electromagnetic coil and method of manufacture

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