CN2379328Y

CN2379328Y - Pencil sharpener being able to sharpen thin and long lead

Info

Publication number: CN2379328Y
Application number: CN 99228560
Authority: CN
Inventors: 何智; 殷兴辉
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-09
Filing date: 1999-06-09
Publication date: 2000-05-24
Anticipated expiration: 2009-06-09

Abstract

The utility model provides a pencil planer with a novel structure capable of sharpening a thin and long lead. The utility model is composed of a pencil clamp mechanism, a shell body, a chip storage groove, a cutter base, a hobbing cutter and a rotary device. The utility model is characterized in that the hobbing cutter is composed of two segments of structures, wherein, one segment is a cylindric spiral hobbing cutter structure, the other segment is a conical structure, and the two segments of structures are coupled in a coaxial way. The utility model overcomes a shortcoming that a spiral hobbing cutter in the prior art can not plan and sharpen out a thin and long lead; the utility model extends the once continuous usage time of a well planned pencil, and can realize electric plane. The utility model is the ideal pencil planer.

Description

Can cut out the pencil-knife of elongated pen core

The utility model relates to the utensil that sharpens a pencil in the stationery class.Particularly a kind of pencil-knife of cutting out elongated pen core.

In the prior art, pencil-knife has two big classes: a class is a single-blade formula pencil sharpener, thin blade directly is fixed on the knife rest with bolt or screw, though simple in structure, easy to use, there are many drawbacks simultaneously, as very easily eccentric, the disconnected core of the pencil that rolls out, pen core blocks for one section, waste very greatly, and it is not in good time to run into essence, not only requires great effort but also time-consuming; Another kind of is the spiral hobbing cutter pencil-knife, blade is shape in the shape of a spiral, hobboing cutter and pencil axis form an angle, utilization is contained in the rotation around internal gear of hobboing cutter on the hob head and the hobboing cutter gear on the hobboing cutter, cutting is fixed on the pencil of hob head center, dig a sheet pen bits, though this class pencil-knife has overcome single-blade formula pencil sharpener off-centre, shortcomings such as disconnected core, but the apicule portion of the pen core that they are planed out is very short, and is often a little while have more than is needed, will plane again, like this, not only lavish labor on, also wasted valuable time, brought very big inconvenience to the user.

The purpose of this utility model is exactly in order to overcome deficiency of the prior art, and a kind of pencil-knife of cutting out elongated pen core is provided, and realizes prolonging the one-time continuous service time after pencil is planed.

To achieve these goals, inventive point of the present utility model is: change the single segment structure of existing spiral hobbing cutter, adopt difform two segment structure forms.Concrete scheme is: the pencil-knife that can cut out elongated pen core, be made of pencil holding mechanism, housing, dreg storage groove, tool rest, hobboing cutter and tumbler, it is characterized in that: hobboing cutter is made up of two segment structures, and one section is cylinder spiral hobbing cutter structure, another section is a conical structure, the coaxial connection of two segment structures.Said conical structure is meant cone emery wheel, cone spiral hobbing cutter or sand paper is set on cone.Said tumbler is meant hand crank or motor and gear drive thereof.

The utility model provides a kind of pencil-knife of cutting out elongated pen core of new construction, the apicule portion that it has overcome the pen core of planing out in the prior art is very short, service time is short, need constantly repeat planing, not only required great effort but also time-consuming shortcoming, the pencil-knife of cutting out elongated pen core that the utility model provides, realized prolonging the one-time continuous service time after pencil is planed, both saved the labour, saved modern's quality time again, bring great convenience to the user, improved people's work efficient widely.

Be described further below in conjunction with drawings and Examples.

Fig. 1 is the general structure schematic diagram of the utility model embodiment 1.

Fig. 2 is the agent structure schematic diagram of the utility model embodiment 1.

Fig. 3 is the agent structure schematic diagram of the utility model embodiment 2.

Fig. 4 is the general structure schematic diagram of the utility model embodiment 3.

Embodiment 1, and with reference to Fig. 1, Fig. 2: can cut out the pencil-knife of elongated pen core, be made of pencil holding mechanism 1, housing 2, dreg storage groove 3, tool rest 4, hobboing cutter 5 and hand crank 6, basic framework is same as the prior art.Hobboing cutter 5 is formed by two sections, and one section is cylinder spiral hobbing cutter structure 7, and another section is coaxial being made of one of cone spiral hobbing cutter structure 8, two segment structures.The tapering of cone spiral hobbing cutter structure 8 and length are by elongated dimension and the diameter of pen core and the diameter decision of cylinder spiral hobbing cutter 7 of needed pen core.Under the drive of hand crank, tool rest rotates, be contained in hobboing cutter on the tool rest around the pencil also rotation of both having revolved round the sun, 7 planings of cylinder spiral hobbing cutter structure are fixed on the wooden part of the pencil of hob head center, the pen core part of 8 planings of cone spiral hobbing cutter structure pencil.Like this, can not press to till the blade by alignment restrictions, work finishes again.

Embodiment 2, the another kind of version of hobboing cutter 5, with reference to Fig. 1, Fig. 3: basic structure is identical with last example, but hobboing cutter 5 is by cylinder spiral hobbing cutter structure 7 and cone emery wheel 9 or sand paper 9 two segment structures are set on cone form, and two segment structures are coaxial to be bound up.Under the drive of hand crank, tool rest rotates, be contained in hobboing cutter on the tool rest around the pencil also rotation of both having revolved round the sun, 7 planings of cylinder spiral hobbing cutter structure are fixed on the wooden part of the pencil of hob head center, and cone emery wheel 9 or 9 on the sand paper that is provided with on cone are scraped the pen core part that sharpens a pencil.

Embodiment 3, a kind of version of electric pencil planer, with reference to Fig. 4: basic structure is identical with last example, but tumbler by motor 10, motor reel cog 11 and 4 of tool rests cog and 12 form gear 11 and gear 12 engagements.

After circuit was connected, motor start-up made the rotational power of the gear 11 on the motor reel pass to tool rest 4, was contained in hobboing cutter on the tool rest 4 around the pencil also rotation of both having revolved round the sun, and can not press to till the blade by alignment restrictions again.

Claims

1, a kind of pencil-knife of cutting out elongated pen core, be made of pencil holding mechanism, housing, dreg storage groove, tool rest, hobboing cutter and tumbler, it is characterized in that: hobboing cutter is made up of two segment structures, and one section is cylinder spiral hobbing cutter structure, another section is a conical structure, the coaxial connection of two segment structures.

2, the pencil-knife of cutting out elongated pen core according to claim 1 is characterized in that: said conical structure is meant the cone emery wheel or sand paper is set on cone.

3, the pencil-knife of cutting out elongated pen core according to claim 1, it is characterized in that: said conical structure is meant the cone spiral hobbing cutter.

4, according to claim 1 or the 2 or 3 described pencil-knifes of cutting out elongated pen core, it is characterized in that: said tumbler is meant hand crank or motor and gear drive thereof.