JPS5627376A - Printing hammer mechanism - Google Patents
Printing hammer mechanismInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51141018A (en) * | 1975-05-29 | 1976-12-04 | Canon Kk | Printing hammer |
-
1979
- 1979-08-13 JP JP10341179A patent/JPS5627376A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51141018A (en) * | 1975-05-29 | 1976-12-04 | Canon Kk | Printing hammer |
Cited By (4)
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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