JPS5791270A - Type band back-up mechanism - Google Patents
Type band back-up mechanismInfo
- Publication number
- JPS5791270A JPS5791270A JP16755380A JP16755380A JPS5791270A JP S5791270 A JPS5791270 A JP S5791270A JP 16755380 A JP16755380 A JP 16755380A JP 16755380 A JP16755380 A JP 16755380A JP S5791270 A JPS5791270 A JP S5791270A
- Authority
- JP
- Japan
- Prior art keywords
- type band
- printing lines
- electromagnet
- arrow
- turned
- 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
Landscapes
- Impact Printers (AREA)
Abstract
PURPOSE: To obtain a long-life and highly reliable type band back-up mechanism with a reduced wearing of a back up surface by swinging a back-up member for a type bank along the band.
CONSTITUTION: As the number of printing lines reaches the set value monitoring it, an electromagnet 13 is turned on and a swing lever 10 is pulled against a force of a spring 12 so that a back-up member 7' is moved in the direction of the arrow B and retained. Then, when the number of printing lines doubles the set value, the electromagnet 13 is turned off and the lever 10 is pulled with the spring 12 so that the member 7' is moved in the direction of the arrow A. The member 7' is oscillated alternately each number of printing lines preset by repeating this action. This disperses the area on the member 7' where a printing hammer 3 impacts thereby reducing wear of the back-up surface of the member 7' due to the impact thereof. Thus, a long-life, highly reliable type band back- up mechanism.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16755380A JPS5791270A (en) | 1980-11-28 | 1980-11-28 | Type band back-up mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16755380A JPS5791270A (en) | 1980-11-28 | 1980-11-28 | Type band back-up mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5791270A true JPS5791270A (en) | 1982-06-07 |
Family
ID=15851847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16755380A Pending JPS5791270A (en) | 1980-11-28 | 1980-11-28 | Type band back-up mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5791270A (en) |
-
1980
- 1980-11-28 JP JP16755380A patent/JPS5791270A/en active Pending
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