CN85204581U - Lead cutless pencil sharpener - Google Patents

Abstract

The utility model relates to a novel woody lead protecting pencil sharpener. A knife blade and a knife frame of the lead protecting pencil sharpener are shortened, so the diameter of a core outlet hole of a pencil core is increased. So the knife blade no longer cuts the pencil core of a woody pencil, and the sharpened pencil core is capable of being ground into suitable thickness by an additional grinding device.

Description

Lead cutless pencil sharpener

The utility model relates to a kind of stationery.

Turning pencil knife commonly used is made up of blade and knife rest, and its shell can be made into various toy shapes, and the turning pencil knife blade directly cuts the Wood pencil core, and Wood pencil just can directly use after than kind of turning pencil knife rotary cut.Because the cutting tip of this kind turning pencil knife directly contacts hard fragility pen core, cause blade easy to wear, worn out blade eccentric cutting pencil pen core makes the pen core discontinuity, so be easy to disconnected core when using old-fashioned turning pencil knife rotary cut pencil, cause turning pencil knife to scrap too early simultaneously.In addition, when using old-fashioned turning pencil knife rotary cut pencil, the pen core length behind the rotary cut is very short and the tip of the brushstyle of a writing or painting is too sharp, is easy to scratch paper when therefore writing or draws paper just disconnected, and the pen core of having no progeny is uneven, badly uses again.At last, because old-fashioned turning pencil knife can not get the suitable tip of thickness, the pen core that can not take off suitable length where necessary is contained on the plotter and uses, so the scope of application of old-fashioned turning pencil knife is restricted.

The utility model provides a kind of new turning pencil knife, the disconnected core problem in the time of can solving the rotary cut Wood pencil effectively with this turning pencil knife, and can obtain length and the suitable pencil-lead of thickness.

Guarantor's core turning pencil knife of the present utility model is compared with old-fashioned turning pencil knife, the tapering of rotary cut groove does not change, it is the contraction in length of blade (3) and knife rest (1), so just make the diameter in the pencil-lead knockout hole (5) on the knife rest (1) increase to 2.5～3 millimeters, blade (3) just no longer cuts pencil-lead.

Pen core is stained with one deck abrasive material by the grinding hole grinding on the taper hole shape grinding attachment of setting up (4) on the grinding hole wall.

The grinding hole of grinding attachment (4) can with the rotary cut groove on same axis, the rotary cut groove is preceding, grinding attachment after, rotary cut pencil and grinding pen core can carry out simultaneously.In addition, can adjust the distance between grinding hole and pencil-lead knockout hole as required, to obtain the suitable pencil-lead of thickness.

The grinding hole of grinding attachment (4) also can with the rotary cut groove not on same axis, behind the rotary cut of pencil footpath, again through the grinding attachment grinding.

Guarantor's core turning pencil knife that the utility model provides, because blade no longer cuts pen core, solved the disconnected core problem of using old-fashioned turning pencil knife rotary cut pencil, secondly can be the pencil-lead rotary cut to any suitable length (when needing, can cut the random length pen core be contained on the plotter use), in addition, owing to be stained with the taper hole shape grinding attachment of abrasive material on the turning pencil knife with a grinding hole wall, be available for users to pen core is ground to suitable fineness degree, at last, the utility model is compared with old-fashioned turning pencil knife, and blade and knife rest all shorten, and so just can save the material about 1/3rd.

Description of drawings of the present utility model and embodiment:

This device comprises a blade (3), knife rest (1), screw (2), pencil-lead knockout hole (5), grinding attachment (4).

Blade (3) shortens to 17 millimeters by original 25 millimeters, and knife rest shortens to 19 millimeters, and blade places on the knife rest, and 1 millimeter space is respectively stayed on both sides, and pencil-lead knockout hole (5) diameter is 2.5 millimeters, and its shell can be made various toy shapes.

Claims (5)

1, a kind of turning pencil knife of being made up of blade, knife rest, hold-down screw is characterized in that blade [3] and knife rest [1] contraction in length, makes the increasing diameter in pencil-lead knockout hole [5] be added to 2.5～3 millimeters;

The grinding attachment [4] that has a taper hole shape.

2,, it is characterized in that being stained with one deck abrasive material on the grinding hole wall of taper hole shape grinding attachment (4) according to the described turning pencil knife of claim 1.

3, according to the described turning pencil knife of claim 1, the optimum diameter that it is characterized in that pencil-lead knockout hole (5) is 2.5 millimeters.

4, according to claim 1,2 described turning pencil knifes, it is characterized in that the grinding hole of grinding attachment (4) and revolve before groove on same axis, the rotary cut groove is preceding, grinding attachment after, the distance between the grinding hole of grinding attachment (4) and pencil-lead knockout hole can be adjusted.

5, according to claim 1,2 described turning pencil knifes, the grinding hole that it is characterized in that grinding attachment (4) also can with the rotary cut groove not on same axis.