JPS6447599A - Pencil sharpener - Google Patents
Pencil sharpenerInfo
- Publication number
- JPS6447599A JPS6447599A JP20481287A JP20481287A JPS6447599A JP S6447599 A JPS6447599 A JP S6447599A JP 20481287 A JP20481287 A JP 20481287A JP 20481287 A JP20481287 A JP 20481287A JP S6447599 A JPS6447599 A JP S6447599A
- Authority
- JP
- Japan
- Prior art keywords
- pencil
- cut
- cutting blades
- lead
- wooden
- 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 cut pencil lead so as to make a tip angle as small as possible and allow to use at a constant width for relatively a long period of time by placing front part of the helical rotary cutting blades substantially on trancated conical surface. CONSTITUTION: Rotary cutting blades 1 has been arranged so that its axis of rotation obliquely crosses the axis of pencil 2, the part of cutting blades 1a that cuts wooden part of the pencil is on a cylindrical surface, whereas the front part of cutting blades 1b that cuts lead part 3 has been on a trancated conical surface. When a pencil is cut with a sharpener structured in this manner, wooden part of the pencil 2 is cut in angle θ and the lead part 3 turns to be cut in a smaller angle θ'. Accordingly, it is made to cut wooden part and lead part of a pencil with different angles of cutting from each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20481287A JPS6447599A (en) | 1987-08-18 | 1987-08-18 | Pencil sharpener |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20481287A JPS6447599A (en) | 1987-08-18 | 1987-08-18 | Pencil sharpener |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447599A true JPS6447599A (en) | 1989-02-22 |
Family
ID=16496782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20481287A Pending JPS6447599A (en) | 1987-08-18 | 1987-08-18 | Pencil sharpener |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447599A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106938580A (en) * | 2016-10-11 | 2017-07-11 | 义乌市鼎邦文体用品有限公司 | Cut the penknife structure and penknife of sketch pencil |
-
1987
- 1987-08-18 JP JP20481287A patent/JPS6447599A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106938580A (en) * | 2016-10-11 | 2017-07-11 | 义乌市鼎邦文体用品有限公司 | Cut the penknife structure and penknife of sketch pencil |
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