JPS5528812A - Printing wheel selection type printing apparatus - Google Patents

Printing wheel selection type printing apparatus

Info

Publication number
JPS5528812A
JPS5528812A JP10135478A JP10135478A JPS5528812A JP S5528812 A JPS5528812 A JP S5528812A JP 10135478 A JP10135478 A JP 10135478A JP 10135478 A JP10135478 A JP 10135478A JP S5528812 A JPS5528812 A JP S5528812A
Authority
JP
Japan
Prior art keywords
spring plate
pressure
lever
print
increased
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
JP10135478A
Other languages
Japanese (ja)
Inventor
Kozo Okubo
Yoshihiro Kobada
Osamu Asakura
Tatsuo Nishikawa
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.)
Canon Inc
Canon Electronics Inc
Original Assignee
Canon Inc
Canon Electronics Inc
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 Canon Inc, Canon Electronics Inc filed Critical Canon Inc
Priority to JP10135478A priority Critical patent/JPS5528812A/en
Publication of JPS5528812A publication Critical patent/JPS5528812A/en
Priority to US06/263,488 priority patent/US4424743A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase duration of a spring plate and smallize force of magnet by providing a mechanism for controlling pressure of spring plate and in regard to print selection lever, each line spring plate increase presuure upon print selection and decrease pressure upon printing operation and gradually increase pressure after half of print wheel returning operation.
CONSTITUTION: Upon print selection operation, a lever 218 for keeping spring plate is rotated in clock direction about an axis 2182 by cams 117, 117 and each line spring plate 217 is raised against a print selection lever 208 so that pressure of the spring plate is increased and get sufficient force for stop of print wheel. Upon printing, engaging of cams 117, 117 with the lever 218 is released and the lever is rotated about the axis 2182 in counter-clock direction and each line spring plate 217 is lowered against the lever 208 so that the pressure of spring is decreased. And after half of return operation of print wheel, the pressure of spring is increased. Thus, the pressure is increased only in print selection operation so that the duration of the spring plate 217 is increased and it allows small attractive force of magnet.
COPYRIGHT: (C)1980,JPO&Japio
JP10135478A 1978-08-19 1978-08-19 Printing wheel selection type printing apparatus Pending JPS5528812A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP10135478A JPS5528812A (en) 1978-08-19 1978-08-19 Printing wheel selection type printing apparatus
US06/263,488 US4424743A (en) 1978-08-19 1981-05-14 Printing device of type ring selection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10135478A JPS5528812A (en) 1978-08-19 1978-08-19 Printing wheel selection type printing apparatus

Publications (1)

Publication Number Publication Date
JPS5528812A true JPS5528812A (en) 1980-02-29

Family

ID=14298490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10135478A Pending JPS5528812A (en) 1978-08-19 1978-08-19 Printing wheel selection type printing apparatus

Country Status (1)

Country Link
JP (1) JPS5528812A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03168387A (en) * 1989-11-28 1991-07-22 Shimadzu Corp Turbo-molecular pump and its manufacture

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462922A (en) * 1977-10-31 1979-05-21 Hitachi Metals Ltd Abrasion and corrosion resistant nickellcobalt base alloy

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462922A (en) * 1977-10-31 1979-05-21 Hitachi Metals Ltd Abrasion and corrosion resistant nickellcobalt base alloy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03168387A (en) * 1989-11-28 1991-07-22 Shimadzu Corp Turbo-molecular pump and its manufacture

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