JPS55115531A - Paper feeder - Google Patents

Paper feeder

Info

Publication number
JPS55115531A
JPS55115531A JP2088879A JP2088879A JPS55115531A JP S55115531 A JPS55115531 A JP S55115531A JP 2088879 A JP2088879 A JP 2088879A JP 2088879 A JP2088879 A JP 2088879A JP S55115531 A JPS55115531 A JP S55115531A
Authority
JP
Japan
Prior art keywords
forms
force
change
paper feeding
support plate
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
JP2088879A
Other languages
Japanese (ja)
Inventor
Yoshiichiro Wakatabi
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP2088879A priority Critical patent/JPS55115531A/en
Publication of JPS55115531A publication Critical patent/JPS55115531A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To stabilize the pushing down force of a paper feeding roll to the change in the quantity of forms paper by providing a supporting projection at the vicinity of the gravity position of the forms on the lower part of the forms support plate.
CONSTITUTION: The support projection 16 is provided on the forms support plate 4. Suppose that the force in which the lifting roller 7 pushes up the forms support plate 4 by the force of a spring is P1' are the force in which the paper feeding roller 5 applies to the paper surface of the forms 1 at right angles is P2' and P1 and P2 when the support projection 16 is not provided, respectively. Where, the following two expressions are established by moment balance: P2=P1-G1.L1/t1, and P2'= P1'-G1.t2/t3 Suppose that the accumulated thicknesses T of these forms are used as the lateral axis, the change in P2' is more reduced than P2 change. In other words, the pushing down force of the paper feeding roll 5 can be stabilized to the change of the quantity of forms, and a number of paper feeding events do not occur even when the number of forms are reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP2088879A 1979-02-26 1979-02-26 Paper feeder Pending JPS55115531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2088879A JPS55115531A (en) 1979-02-26 1979-02-26 Paper feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2088879A JPS55115531A (en) 1979-02-26 1979-02-26 Paper feeder

Publications (1)

Publication Number Publication Date
JPS55115531A true JPS55115531A (en) 1980-09-05

Family

ID=12039741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2088879A Pending JPS55115531A (en) 1979-02-26 1979-02-26 Paper feeder

Country Status (1)

Country Link
JP (1) JPS55115531A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008068948A (en) * 2006-09-12 2008-03-27 Canon Inc Sheet feeder, and image forming device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008068948A (en) * 2006-09-12 2008-03-27 Canon Inc Sheet feeder, and image forming device

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