JPS5697806A - Measuring device for curl degree of paper or the like - Google Patents
Measuring device for curl degree of paper or the likeInfo
- Publication number
- JPS5697806A JPS5697806A JP17149279A JP17149279A JPS5697806A JP S5697806 A JPS5697806 A JP S5697806A JP 17149279 A JP17149279 A JP 17149279A JP 17149279 A JP17149279 A JP 17149279A JP S5697806 A JPS5697806 A JP S5697806A
- Authority
- JP
- Japan
- Prior art keywords
- test piece
- curl degree
- horizontal
- constitution
- curve
- 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
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
PURPOSE: To facilitate curl degree measuring operation with the constitution through which extent of a curve can be read on a scale on a table, by holding a test piece by a clamping device so that the length direction and width direction are horizontal and vertical respectively.
CONSTITUTION: Striplike test piece A sandwiched between elastic pieces 10 and 11, such as rubber and felt, stuck to clamping pieces 5 and 6 on a horizontal table and tightened by screw 7 to hold it so that the length direction and width direction are horizontal and vertical respectively. Transparent cover 9 treated for charging prevention is placed and through scale 2, curve (a) of test piece A is read. Since test piece A has an accurate arc, radius (r) of curvature is determined by a=r[1- cos(l/r), where (l) is the effective length. Therefore, curl degree (1/r)×100 can be calculated. Thus, the measurement of the curl degree can be facilitated.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17149279A JPS5697806A (en) | 1979-12-31 | 1979-12-31 | Measuring device for curl degree of paper or the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17149279A JPS5697806A (en) | 1979-12-31 | 1979-12-31 | Measuring device for curl degree of paper or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5697806A true JPS5697806A (en) | 1981-08-06 |
Family
ID=15924092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17149279A Pending JPS5697806A (en) | 1979-12-31 | 1979-12-31 | Measuring device for curl degree of paper or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5697806A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6335903U (en) * | 1986-08-27 | 1988-03-08 |
-
1979
- 1979-12-31 JP JP17149279A patent/JPS5697806A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6335903U (en) * | 1986-08-27 | 1988-03-08 | ||
JPH0541361Y2 (en) * | 1986-08-27 | 1993-10-20 |
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