CN88100559A

CN88100559A - Multifunctional pencil sharpener

Info

Publication number: CN88100559A
Application number: CN 88100559
Authority: CN
Inventors: 李静
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-01-30
Filing date: 1988-01-30
Publication date: 1988-09-07

Abstract

The blade of the multifunctional pencil sharpener has four equal-length blades, and the blades can be used in exchange for each other. There is an arc-shaped groove on one edge of the knife seat, which can be used to directly cut the thickness of the pencil, and can be rolled or straight. This kind of pencil has a pencil rub on the inner wall on the left side of the knife seat, which can grind the lead tip finely and prolong the service life of the pencil sharpener exponentially.

Description

Multifunctional pencil sharpener

The present invention can sharpen various pencils like planer and sharpen pencil tip. The universal pencil sharpener (patent No. 86200111) of my application, although having great advantages over the old pencil sharpeners, has a number of disadvantages.

The invention aims to further prolong the service life of the pencil sharpener, increase the sharpening method, avoid the lead point from being sharpened and reduce the cost.

The structure and the method of the pencil sharpener are the same as those of a common pencil sharpener, but the sharpener edge is shorter. When the lead is sharpened to a proper fineness, the lead point is beyond the range of the cutting edge, and the lead point can be prevented from being cut. The blade is four isometric cutting edges, or two isometric cutting edges that correspond, and the screw is located the center of four cutting edges, and the cutting edge can be used by the transposition each other.

The following is further described with reference to the accompanying drawings.

The attached drawing is a structural schematic diagram of the invention.

Referring to the attached drawings, the pencil sharpener comprises a blade (1), a tool apron (2), a screw (3) and a pencil sharpener (11), wherein the blade (1) is provided with four equal-length cutting edges (4) or two corresponding equal-length cutting edges, the four cutting edges (4) or the two corresponding cutting edges can be used in a mutually-exchanged position, the screw (3) is positioned in the center of the four cutting edges (4), the upper edge (6) of the front side (5) of the tool apron (2) or the upper edge (8) of the left side (7) is an arc-shaped groove (9), and the arc-shaped groove is a slope with a low outer part and a high inner part. The arc-shaped groove to the lower part of the blade is provided with a section of empty groove (10), so that sawdust and lead foam which are cut down conveniently fall down, and when the cutting edge which is positioned for coiling and cutting is blunt, other cutting edges can be adjusted to the position for use. The inner wall of the left side (7) or the front side (5) of the tool apron is attached with a pencil sharpener (11) which can sharpen the lead tip.

The pencil sharpener can sharpen various pencils in a rolling manner and in a straight manner like a plane cutter, can rub fine pencil points, and can sharpen the pencils into round points or flat points according to requirements.

Claims

A multifunctional pencil sharpener consisting of a blade (1), a knife seat (2), a screw (3) and a pencil rub (11), is characterized in that the blade (1) has four equal-length blades (4), or Two blades corresponding to the same length, the blades can be used interchangeably, the screw (3) is located at the center of the four blades, the upper edge (6) of the front side (5) of the knife seat, or the upper edge of the left side (7) (8) is an arc-shaped groove (9). The arc-shaped groove is a slope with a low outside and a high inside. There is a section of empty groove (10) from the arc-shaped groove to the lower part of the blade. The left side (7) or the front side (5) of the knife seat Pencil friction (11) is attached on the inner wall of the.