CN2179278Y

CN2179278Y - Two-edge pencil-knife

Info

Publication number: CN2179278Y
Application number: CN 93246481
Authority: CN
Inventors: 吴保军
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-19
Filing date: 1993-12-19
Publication date: 1994-10-12
Anticipated expiration: 2003-12-19

Abstract

The utility model relates to a two-edge pencil sharpener, which is improved on the basis of an existing pencil sharpener. The utility model comprises a knife holder and a blade which is fixed on the knife holder, the tail end of the blade of the knife holder is provided with the other blade, the included angle between the back end of the blade and a horizontal is smaller than the included angle between the front end of the blade and the horizontal, besides, the tail of the knife holder is closed. The pencil nib which is cut by the pencil sharpener is moderate, and writing force is easy to control. In addition, because the tail of the blade carrier is closed, the DEG of cutting the pencil in a rotating way can be controlled to avoid waste by children who cut the pencil in a rotating way arbitrarily and interminably.

Description

Two-edge pencil-knife

The utility model relates to a kind of pencil sharpener, a kind of twolip pencil sharpener of more specifically saying so.

The blade of existing pencil sharpener only is a slice, and this pencil sharpener volume top rake degree is single, and the lead for retractable pencil that volume is cut out becomes tip-like.Therefore, it is many that the lead for retractable pencil volume is cut loss, very easily disconnected point during use, and the bad grasp of writing physical strength, the stitching thickness difference of writing is big.Simultaneously, it is uncontrollable that volume is cut degree, thereby can not satisfy the instructions for use of each level of society, is only limited to the children that can not use pocket knife safely and uses.

The purpose of this utility model provides a kind of volume that can control pencil and cuts degree, reduces the twolip pencil sharpener of lead for retractable pencil loss.

Above-mentioned purpose can realize in the following manner: a kind of twolip pencil sharpener, include knife rest and blade fixed thereon, blade and horizontal plane angle are 9 °～10 °, on the knife rest of the tail end of blade, also be fixed with blade, blade and horizontal plane angle are 5 °～7.5 °, length is 5～8mm, the afterbody sealing of knife rest.

The nib of the pencil that this pencil sharpener volume is cut out is not a tip-like, but appropriateness by slightly gradually thin, thereby not easily broken point when writing, writing physical strength might as well be grasped, line weight changes also less.Simultaneously, lead for retractable pencil is cut to lose in the process at volume and is lacked, owing to the knife rest tail end seals, therefore, when pencil sharper when lead for retractable pencil pushes up the knife rest tail end, pencil has also just been cut, and is being rotated further, and also can only dally, and pencil is no longer cut by volume, avoids children ad infinitum to roll up in use and cuts the waste pencil.

Description of drawings:

Accompanying drawing 1 is a stereogram of the present utility model.

Accompanying drawing 2 is profiles of the present utility model.

Accompanying drawing 3 is the pencil shapes of cutting out with existing pencil sharpener volume.

Accompanying drawing 4 is the pencil shapes of cutting out with the utility model volume.

The utility model is described in further detail with reference to the accompanying drawings:

Shown in accompanying drawing 1,2: a kind of improved pencil sharpener---twolip pencil sharpener, include knife rest 3 and blade 1 fixed thereon, on the knife rest 3 of blade 1 rearward end, go back fixed blade 2, blade 1 is different with the setting angle of blade 2, blade 1 is 9 °～10 ° with horizontal plane angle, blade 2 is 5 °～7.5 ° with horizontal plane angle, the best is 7 °, the length of blade 2 is 5～8mm, the best is 7mm, and the tip of a pencil that volume is cut out can not become tip-like, in addition, the afterbody sealing of knife rest 3, thus the degree that pencil is cut by volume can be controlled.

Shown in accompanying drawing 3: Fig. 3 is the shape of cutting with single blade pencil sharpener volume, and its shape becomes tip-like, and is easily broken during use, the bad grasp of writing physical strength.Shown in accompanying drawing 4: Fig. 4 is the shape of rolling up the tip of a pencil of cutting with the utility model, and a transition is arranged between nib and the penholder, and the nib that volume is cut out is appropriate, and by slightly gradually thin, dynamics is more easily grasped when writing.

Claims

1, a kind of twolip pencil sharpener, include knife rest (3) and blade (1) fixed thereon, blade (1) is 9 °～10 ° with horizontal plane angle, it is characterized in that: on the knife rest (3) of the tail end of blade (1), also be fixed with blade (2), blade (2) is 5 °～7.5 ° with horizontal plane angle, length is 5～8mm, the afterbody sealing of knife rest (3).

2, twolip pencil sharpener according to claim 1 is characterized in that: described blade (2) is 7 ° with horizontal plane angle the best.

3, twolip pencil sharpener according to claim 1 and 2 is characterized in that: the length of described blade (2) is best to be 7mm.