JPS554046A - Fixing device in copying machine - Google Patents

Fixing device in copying machine

Info

Publication number
JPS554046A
JPS554046A JP7656878A JP7656878A JPS554046A JP S554046 A JPS554046 A JP S554046A JP 7656878 A JP7656878 A JP 7656878A JP 7656878 A JP7656878 A JP 7656878A JP S554046 A JPS554046 A JP S554046A
Authority
JP
Japan
Prior art keywords
pressure
roller
fluid coupling
motor
heating roller
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.)
Granted
Application number
JP7656878A
Other languages
Japanese (ja)
Other versions
JPS6118749B2 (en
Inventor
Takeshi Shimada
Sadaichi Takigawa
Masaaki Tanaka
Yutaka Ouchi
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP7656878A priority Critical patent/JPS554046A/en
Publication of JPS554046A publication Critical patent/JPS554046A/en
Publication of JPS6118749B2 publication Critical patent/JPS6118749B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE: To enable a pressure roller to make pressure contact, release and pressure adjustment with respect to a heating roller through simple control by connecting support members which support the pressure roller detachably from a heating roller to a driving device by way of a fluid coupling.
CONSTITUTION: When a motor 1 runs, a heating roller 6 revolves and at the same time, a fluid coupling 3 revolves while generating the transmission torque proportional to the revolving speed of the motor 1 and therefore the pulleys 9, 10 connected to the shaft 11 also revolve in the same direction, thus winding up wires 16, 17. As a result, a pressure roller 5 is pulled up to make pressure contact to the heating roller 6, then the pressure roller revolves together with the heating roller 6. When the motor 1 further continues to rotate, the pressure of fixing roller pair 5, 6 gradually increases but when it reaches the pressure obtainable by the maximum transmission torque that can be generated by the fluid coupling 3, said pressure does not longer increase and maintains a fixed pressure contact state. When the motor 1 stops running, the transmission torque of the fluid coupling 3 gradually decreases and the pressure roller 5 is gradually lowered by the braking force of the fluid coupling 3 owing to its gravity.
COPYRIGHT: (C)1980,JPO&Japio
JP7656878A 1978-06-26 1978-06-26 Fixing device in copying machine Granted JPS554046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7656878A JPS554046A (en) 1978-06-26 1978-06-26 Fixing device in copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7656878A JPS554046A (en) 1978-06-26 1978-06-26 Fixing device in copying machine

Publications (2)

Publication Number Publication Date
JPS554046A true JPS554046A (en) 1980-01-12
JPS6118749B2 JPS6118749B2 (en) 1986-05-14

Family

ID=13608827

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7656878A Granted JPS554046A (en) 1978-06-26 1978-06-26 Fixing device in copying machine

Country Status (1)

Country Link
JP (1) JPS554046A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972232A (en) * 1989-09-05 1990-11-20 Eastman Kodak Company Fusing apparatus having automatic nip width adjustment mechanism
JPH04172385A (en) * 1990-11-05 1992-06-19 Nec Niigata Ltd Electrophotographic printing device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01153153U (en) * 1988-04-11 1989-10-23

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972232A (en) * 1989-09-05 1990-11-20 Eastman Kodak Company Fusing apparatus having automatic nip width adjustment mechanism
JPH04172385A (en) * 1990-11-05 1992-06-19 Nec Niigata Ltd Electrophotographic printing device

Also Published As

Publication number Publication date
JPS6118749B2 (en) 1986-05-14

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