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Patent Searching and Data


Title:
PENCIL SHARPENER
Document Type and Number:
WIPO Patent Application WO/2020/217544
Kind Code:
A1
Abstract:
[Problem] To provide a pencil sharpener capable of sharpening a pencil by simply and reliably setting the sharpening angle with respect to a pencil shaft to an optimal angle according to the hardness of the pencil core. [Solution] This pencil sharpener has a holding part in which a pencil is inserted along an insertion axis, and a rotary blade part that is disposed to have a set tilt angle with respect to the insertion axis and rotationally driven with respect to the tip section of the pencil by the rotation of a handle, and sharpens the tip section at the set sharpening angle, the pencil sharpener comprising: a blade holding member that holds the rotary blade part by the holding member at a predetermined tilting angle so that the rotary blade part can tilt with respect to a tilting axis set to the holding part; an elastic member that applies a biasing force to the rotary blade part in a direction in which the tilting angle increases; a blade section angle holding member that maintains the tilting angle of the rotary blade part at the predetermined angle; and an angle determining member with which the tilting angle of the rotary blade part can be determined on the basis of the cutting angle suitable for the hardness of the pencil core.

Inventors:
TOCHIO YOSUKE (JP)
Application Number:
PCT/JP2019/020362
Publication Date:
October 29, 2020
Filing Date:
May 22, 2019
Export Citation:
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Assignee:
KUTSUWA KK (JP)
International Classes:
B43L23/04
Foreign References:
JP2002019388A2002-01-23
JPS5010046Y11975-03-28
US20090211666A12009-08-27
JPH01317797A1989-12-22
Attorney, Agent or Firm:
KIMURA Takaaki (JP)
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