CN2252709Y

CN2252709Y - Planing blade for sharpening pencil

Info

Publication number: CN2252709Y
Application number: CN 96209495
Authority: CN
Inventors: 辛占罗
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-17
Filing date: 1996-05-17
Publication date: 1997-04-23
Anticipated expiration: 2006-05-17

Abstract

The utility model belongs to the class of stationary and office supplies. The utility model introduces for solving the problems that hand is easy to be hurt when a pencil is cut, pencil core is easy to break when the pencil is cut by a pencil sharpener, and the nib of the pencil is not durable because of the large taper of the pencil core. The planing blade for sharpening a pencil provided by the utility model is composed of a planing blade body and a blade. The blade is installed in a clearance hole on the back part of a long slot of the planing blade body, and the cutting edge of the blade is a little higher than the bottom surface of the long slot. While in use, a pencil to be planed is pulled in the long slot, and the planed taper of the pencil can be controlled by hand. As is shown in test, the utility model has convenient, simple structure and convenient popularization.

Description

The planing tool that sharpens a pencil

The utility model belongs to the stationery class, and it relates to a kind of structure of cutter of the usefulness that sharpens a pencil.

One of the most general writing implement that pencil is used by people is to use knife and sharpen a pencil before, and it very easily scratches hand, and the pencil of fixing was both plain, and is also not handy, and is disconnected easily plumbous, can cause the very big waste of pencil.Pencil sharpener had appearred afterwards, though it has overcome some shortcomings that pocket knife is cut pen, also exist easily broken lead for retractable pencil and the tapering of the nib fixed bigger, have more than is needed a period of time nib is blunt again, therefore feels that also inconvenience does not satisfy using.

The purpose of this utility model is to release a kind of novel cutter that sharpens a pencil, it have do not hinder hand, non-breaking lead, U.S. existing handy and institute cuts plumbous sharp angle and can adjust arbitrarily.

By as above design, the planing tool that sharpens a pencil that this programme provided, it comprises cutter hub and blade, the cutter hub that it is characterized in that it is the cuboid of a band groove, opens the oblong aperture that nearly 90 a ° chip removal is used in the behind of groove width, and this hole communicates with the bottom surface of groove, on the one side of oblong aperture, blade is installed, its cutting edge part is a little more than the surface of the groove of cutter hub, and the width of blade is less than groove width, and the groove width of cutter hub is greater than the diameter of the thickest pencil.

The cutting edge of the blade in this programme is vertical with the direction of the elongated slot of cutter hub.

Adopt this programme can embody following superiority: to hand the cutter hub of planing tool when 1. using and make blade forward, with pencil to be repaiied pulling repeatedly in groove, the angle of pencil and bottom land is controlled on demand, can change the tapering that is sharpened a pencil, use for the pupil can make its tapering bigger to keep the intensity of lead for retractable pencil, can make tapering littler when being used to chart, can keep lead for retractable pencil sharp for a long time; 2. its blade is ensconced in the groove, points can not enter in the groove in the process that sharpens a pencil, and therefore can not hinder hand; 3. its simple in structure being easy to is made, and cost is low, and general student can accept; 4. add an ornamental sheath body as if appearance, both can beautify also and can hold bits, can obtain better effect at cutter hub.

Fig. 1 is that the outer existing of planing tool that this programme sharpens a pencil schemed.

Fig. 2, Fig. 3, Fig. 4 are the structure charts of the planing tool that sharpens a pencil.

The embodiment of existing accompanying drawings this programme.This planing tool that sharpens a pencil is made of cutter hub 1 and blade 2, and its cutter hub is the cuboid of a belt length groove, has the chip-removal hole that communicates with elongated slot in the behind of cell body, on a face of chip-removal hole blade is installed.Pencil that will be to be cut during use spurs in groove, and the angle on its pencil and bottom land plane can obtain the tapering of different nibs through people's hand control, and therefore also not easily broken lead feel very easy to use.That cutter hub can use is wooden, plastics or metal material manufacturing.This programme trial product is through probationary certificate: it has easy to use, simple in structure, the low characteristics of being convenient to promote the use of of cost.

Claims

1. planing tool that sharpens a pencil, it comprises cutter hub (1) and blade (2), the cutter hub that it is characterized in that it is the cuboid of a band groove, open the oblong aperture that nearly 90 a ° chip removal is used in the behind of groove width, this hole communicates with the bottom surface of groove, on the one side of oblong aperture blade is installed, and its cutting edge part is a little more than the groove face of cutter hub, the width of blade is less than groove width, and the groove width of cutter hub is greater than the diameter of the thickest pencil.

2. according to the described planing tool that sharpens a pencil of claim 1, it is characterized in that its cutting edge of blade is vertical with the direction of the elongated slot of cutter hub.