CN200939786Y

CN200939786Y - Pencil sharpener having small limiter

Info

Publication number: CN200939786Y
Application number: CN 200620039878
Authority: CN
Inventors: 童光辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-02
Filing date: 2006-03-02
Publication date: 2007-08-29
Anticipated expiration: 2016-03-02

Abstract

The utility model discloses a sharpener with a small limiting body. The utility model consists of a blade group which is composed of at least a taper sharpening groove and a blade positioned along the sharpening groove. The sharpening groove contains one end of the pencil to be sharpened. The small limiting body forming at the blade side at the tapered side of the sharpening groove is used to stop the pencil from entering the sharpening groove when the pencil lead of the pencil to be sharpened is sharpened at the predetermined length. The sharpener may uses a few materials at manufacturing and the sharpener is simply in the structure and easy to be produced.

Description

A kind of pencil sharpener with little limit body

Technical field

This creation relates to the stationery field, especially relevant for a kind of pencil sharpener with little limit body.

Background technology

Pencil sharpener generally all has a set of blades.Set of blades has a conical boring and one to be installed in blade on the set of blades along boring screw, and boring is used for holding the pencil of preparing cutting.The outside that some pencil sharpener also has a shell to be enclosed in set of blades is used for putting the pencil bits.

Pencil sharpener with lead for retractable pencil stopping means has had for a long time.Stopping means is used for stoping lead for retractable pencil in the back well at pencil sharper, and when lead for retractable pencil was cut predetermined length, the limited device in the tip of lead for retractable pencil stopped that the user just knows that pencil sharper is good.This pencil sharpener has many good qualities, and can cut the waste such as it.The user can when pencil is just cut, just know the volume process finished and stop the cutting, so just reduced meaningless cutting.In addition, pencil-lead volume fractureing in the process mainly be since pencil sharper to continue cutting caused in the back well, so pencil sharper well in good time the stopping in back not only can reduce the waste that continues cutting, also can reduce the waste that pen core fractures.

United States Patent (USP) the 6th, 427, No. 343 exposure have a kind of pencil sharpener with stopper.In this invention, pencil sharpener comprises a set of blades, and set of blades is included in the shell and has a tank that holds pencil, and set of blades also has a blade that is used for sharpening a pencil.Also have a slide block and an ennation in the shell, ennation stretches out and is deep into the tank scrolling operation of ennation decision pencil from an elastic arm.Slide block can be regulated with respect to shell, so that regulate the binding site of ennation and set of blades.

The Chinese utility model patent CN87207266U of Zhou Yihua discloses another kind of pencil sharpener.In this invention by the volume amount of cutting that banking stop limits lead for retractable pencil is set on knife rest.In the Chinese patent ZL98230020.4 of another Tang's winter cloud, be formed with an incorporate baffle plate on the set of blades, this plate washer can prevent when lead for retractable pencil is cut to predetermined length that pencil from continuing to insert.

But pencil sharpener all has a common shortcoming, and that is exactly the structure more complicated.Pencil sharpener production in the United States Patent (USP) case is especially complicated, and owing to complex structure, in use just breaks down easily.The pencil sharpener of Tang Dongyun improves to some extent on complexity, but has used too much material in the design of baffle plate, can cause waste.The pencil sharpener of Zhou Yihua needs banking stop is installed on the set of blades aborning, has increased the time and the operation of producing.

Summary of the invention

The main contents of this creation are to provide a kind of pencil sharpener with limit body, and this spacing physical efficiency stops pencil to continue deeply when lead for retractable pencil is cut to predetermined length, and this pencil sharpener can only use very small amount of material during fabrication simultaneously.

The main contents of this creation are to provide a kind of pencil sharpener with limit body, and this spacing physical efficiency stops pencil to continue deeply the relatively simple for structure and easy manufacturing of this pencil sharpener simultaneously when lead for retractable pencil is cut to predetermined length.

To achieve these goals, this creation provides a kind of pencil sharpener with little limit body, it includes a set of blades, and set of blades includes at least one conical volume groove and a blade of installing along a volume groove, and a volume groove is used for holding the end that needs are rolled up the pencil of cutting; And, a next door that is formed at the thinner end blade of a volume groove, limit body is used for stoping when the lead for retractable pencil of pencil is cut to predetermined length pencil to continue to enter a volume groove.

Description of drawings

Fig. 1 is this perspective diagram of creating a kind of preferred embodiment.

Fig. 2 is this another perspective diagram of creating preferred embodiment shown in Figure 1.And,

Fig. 3 is this perspective diagram of creating another kind of preferred embodiment.

The specific embodiment

As shown in Figure 1, 2, this pencil sharpener of creating a kind of preferred embodiment includes a set of blades 1, and set of blades 1 includes at least one conical volume groove 11 and a blade 12 of installing along a volume groove 11 by a screw 13.A volume groove 11 is used for holding the end that needs are rolled up the pencil of cutting 2.In this embodiment, set of blades 1 has a volume groove 11.Next door at a thinner end blade 2 of rolling up a groove 11 is formed with a limit body 14, and this limit body is used for stoping when the lead for retractable pencil 21 of pencil 2 is cut to predetermined length pencil 2 to continue to enter a volume groove 11.

But compare with the baffle plate in the conventional art, the limit body volume in this creation is very little, can use considerably less material can play equally to stop pencil 2 to continue to enter a volume groove 11 when the lead for retractable pencil 21 of pencil 2 is cut to predetermined length.Simultaneously, little limit body 14 make this creation structure very simple clean and tidy, be convenient to very much make.

Shown in Fig. 3 another embodiment of this creation.The set of blades 1 ' of pencil sharpener has two a conical volume groove 11 ', 11A ' and is used for the pencil 2 ' that holds respectively to be cut.Be formed with a limit body 14 ', 14A ' on each next door of rolling up the thinner end blade 2 ' of groove 11 ', 11A ', this limit body is used for stoping when the lead for retractable pencil 21 ' of pencil 2 ' is cut to predetermined length pencil 2 ' to continue to enter a volume groove 11 ', 11A '.Two a conical volume groove 11 ', 11A ' can have the pencil that different diameters is used for cutting different-diameter.Two a conical volume groove 11 ', 11A ' also can have identical diameter, and little limit body 14 ' can be than another little limit body 14A ' a little further in this case, so that can cut longer lead for retractable pencil 21 '.

Pencil sharpener in this creation can also have a shell (not shown), and this shell holds whole set of blades 1 and can be used for collecting the pencil bits.

Known to those skilled in the art, the drawings and Examples of this creation only should not become the restriction in this creation understanding for function, structure and the principle that this creation is described; Simultaneously, the purpose of this creation all realizes.The foregoing description may be had some change under the situation that does not break away from this creation principle, so the protection of this creation should be as the criterion with the scope described in claims.

Claims

1. pencil sharpener with little limit body is characterized in that including:

A set of blades, described set of blades include at least one conical volume groove and a blade of installing along a described volume groove, and,

The limit body on the next door of a described blade of a thinner end that is formed at a described volume groove.

2. pencil sharpener as claimed in claim 1 is characterized in that described set of blades has two volume grooves.

3. pencil sharpener as claimed in claim 2 is characterized in that described two volume grooves have different diameters.

4. pencil sharpener as claimed in claim 2, it is characterized in that described two the volume groove have identical diameter but a described little limit body than another described little limit body a little further.

5. as claim 1,2,3 and 4 described pencil sharpeners, it is characterized in that described pencil sharpener has a shell and surrounds described set of blades.