JPS5535716A - Sheet feeder - Google Patents
Sheet feederInfo
- Publication number
- JPS5535716A JPS5535716A JP10639678A JP10639678A JPS5535716A JP S5535716 A JPS5535716 A JP S5535716A JP 10639678 A JP10639678 A JP 10639678A JP 10639678 A JP10639678 A JP 10639678A JP S5535716 A JPS5535716 A JP S5535716A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sheets
- roller
- paper
- fed out
- 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 assuredly feed sheets one by one from a pile of sheets by use of a paper feed roller and a control roller which rotate in the opposite directions.
CONSTITUTION: When two or more sheets of paper have been fed out from a pile P of sheets of paper at the same time, the frictional forces of a paper feed roller 5 and a control roller 9 act on the upper face of the uppermost sheet and the lower face of the lowermost sheet respectively, and the inter-sheet frictional force is smaller than any of the above-said frictional forces, so that the uppermost sheet will move forth while the lowermost sheet will move back. When the lowermost sheet has moved back, the sheet directly above it comes in contact with the roller 9 and is moved back as described above. Finally, only the uppermost sheet remains between the rollers 5 and 9, and is fed out by the frictional force of the roller 5 without trouble. Thus, only the uppermost sheet is fed out assuredly even when two or more sheets has been fed; therefore, the jam of paper in the following steps can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10639678A JPS5535716A (en) | 1978-08-31 | 1978-08-31 | Sheet feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10639678A JPS5535716A (en) | 1978-08-31 | 1978-08-31 | Sheet feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5535716A true JPS5535716A (en) | 1980-03-12 |
Family
ID=14432520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10639678A Pending JPS5535716A (en) | 1978-08-31 | 1978-08-31 | Sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5535716A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01109023U (en) * | 1988-01-18 | 1989-07-24 | ||
| US5016866A (en) * | 1988-11-17 | 1991-05-21 | Ricoh Company, Ltd. | Sheet feed mechanism for an image recorder |
| US5465948A (en) * | 1993-09-23 | 1995-11-14 | Xerox Corporation | Sheet feeding and separating apparatus |
| US5719347A (en) * | 1994-12-07 | 1998-02-17 | Yamaha Corporation | Keyboard apparatus for electronic musical instrument with key depression detection unit |
| US6660920B2 (en) | 2001-03-06 | 2003-12-09 | Yamaha Corporation | Music operator with tension string for sensing action input |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50145137A (en) * | 1974-05-11 | 1975-11-21 | ||
| JPS51122262A (en) * | 1975-04-16 | 1976-10-26 | Nec Corp | Automatic paper feed apparatus |
| JPS5229998U (en) * | 1975-08-25 | 1977-03-02 | ||
| JPS5326076B2 (en) * | 1973-06-06 | 1978-07-31 |
-
1978
- 1978-08-31 JP JP10639678A patent/JPS5535716A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5326076B2 (en) * | 1973-06-06 | 1978-07-31 | ||
| JPS50145137A (en) * | 1974-05-11 | 1975-11-21 | ||
| JPS51122262A (en) * | 1975-04-16 | 1976-10-26 | Nec Corp | Automatic paper feed apparatus |
| JPS5229998U (en) * | 1975-08-25 | 1977-03-02 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01109023U (en) * | 1988-01-18 | 1989-07-24 | ||
| US5016866A (en) * | 1988-11-17 | 1991-05-21 | Ricoh Company, Ltd. | Sheet feed mechanism for an image recorder |
| US5465948A (en) * | 1993-09-23 | 1995-11-14 | Xerox Corporation | Sheet feeding and separating apparatus |
| US5719347A (en) * | 1994-12-07 | 1998-02-17 | Yamaha Corporation | Keyboard apparatus for electronic musical instrument with key depression detection unit |
| US6660920B2 (en) | 2001-03-06 | 2003-12-09 | Yamaha Corporation | Music operator with tension string for sensing action input |
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