JPS5619066A - Sheet conveying roller pair - Google Patents
Sheet conveying roller pairInfo
- Publication number
- JPS5619066A JPS5619066A JP5816280A JP5816280A JPS5619066A JP S5619066 A JPS5619066 A JP S5619066A JP 5816280 A JP5816280 A JP 5816280A JP 5816280 A JP5816280 A JP 5816280A JP S5619066 A JPS5619066 A JP S5619066A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- outer diameter
- rollers
- sheet
- roller pair
- 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
Links
Abstract
PURPOSE: To provide each titled roller easy to prepare at low cost with precision, by covering each core roller having outer diameter tapering from the middle toward both the ends with an elastic body having uniform hardness so as to render its outer diameter constant.
CONSTITUTION: Core roller 12 is like a beer barrel, and its diameter tapers from the middle 12a toward both the end 12b, and roller 12 is covered with specified elastic rubber layer 13 so as to render its outer diameter constant. Roller 11 is thus formed, and repulsion elasticity in both its ends is higher than that in the middle. Use of such a roller for at least one side of rollers enables a sheet to be conveyed without wrinkling. Such rollers can be prepared easily at low cost, and its precision can be easily enhanced, and since the repulsion elasticity of these pair of rollers continuously changes, wrinkling of the sheet can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55058162A JPS5938588B2 (en) | 1980-05-01 | 1980-05-01 | Roller pair for sheet conveyance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55058162A JPS5938588B2 (en) | 1980-05-01 | 1980-05-01 | Roller pair for sheet conveyance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5619066A true JPS5619066A (en) | 1981-02-23 |
JPS5938588B2 JPS5938588B2 (en) | 1984-09-18 |
Family
ID=13076286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55058162A Expired JPS5938588B2 (en) | 1980-05-01 | 1980-05-01 | Roller pair for sheet conveyance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5938588B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58140933U (en) * | 1982-03-16 | 1983-09-22 | 株式会社リコー | Pressing roller |
JPH02173687A (en) * | 1988-12-26 | 1990-07-05 | Canon Inc | Fixing device |
US5701547A (en) * | 1992-09-28 | 1997-12-23 | Canon Kabushiki Kaisha | Sheet feeding apparatus having means for determining the leading edge of a sheet |
US7107681B2 (en) * | 2000-06-22 | 2006-09-19 | Ricoh Company, Ltd. | Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller |
-
1980
- 1980-05-01 JP JP55058162A patent/JPS5938588B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58140933U (en) * | 1982-03-16 | 1983-09-22 | 株式会社リコー | Pressing roller |
JPH02173687A (en) * | 1988-12-26 | 1990-07-05 | Canon Inc | Fixing device |
US5701547A (en) * | 1992-09-28 | 1997-12-23 | Canon Kabushiki Kaisha | Sheet feeding apparatus having means for determining the leading edge of a sheet |
US7107681B2 (en) * | 2000-06-22 | 2006-09-19 | Ricoh Company, Ltd. | Heating roller, method of producing the heating roller, and heating device, fixing device and image forming apparatus using the heating roller |
Also Published As
Publication number | Publication date |
---|---|
JPS5938588B2 (en) | 1984-09-18 |
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