JPS6447599A - Pencil sharpener - Google Patents

Pencil sharpener

Info

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
Application number
JP20481287A
Other languages
Japanese (ja)
Inventor
Shigeyuki Ishii
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 JP20481287A priority Critical patent/JPS6447599A/en
Publication of JPS6447599A publication Critical patent/JPS6447599A/en
Pending legal-status Critical Current

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)

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.
JP20481287A 1987-08-18 1987-08-18 Pencil sharpener Pending JPS6447599A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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