CN2216000Y

CN2216000Y - Straight cutting type pencil sharpener

Info

Publication number: CN2216000Y
Application number: CN 94218899
Authority: CN
Inventors: 佘全生
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-08-16
Filing date: 1994-08-16
Publication date: 1995-12-27
Anticipated expiration: 2004-08-16

Abstract

The utility model discloses a straight sharpening type pencil sharpener which is a special stationary article for sharpening a pencil. The straight sharpening type pencil sharpener solves the problem that when a pencil sharpener is used for rolling and sharpening the pencil, a lead core is easy to be broken. When a sharpener frame is moved through a straight direction along the wooden veins of the pencil, the part of the pencil protruded from the upper plane of a pencil sharpener main body is sharpened. The pencil is inserted in a pencil groove. Due to the actions of the elasticity of a rubber rib or a spring, the sharpener frame is returned to an original position. The pencil is sharpened repeatedly. The pencil is sharpened by sharpener edges along the wooden veins with the straight direction, fixed quantity and support. The lead core is not easy to be broken and sharpening surfaces are smooth, tidy and beautiful. The sharpener edges are moved in the pencil sharpener main body and use is safe.

Description

Straight cutting type pencil sharpener

A kind of stationery that is used to cut pencil.

The present pencil-knife that uses, the relative pencil wood grain of edge of a knife cross cutting during use, plumbous the heart channel of Hang-Shaoyin often fractures, because resistance is big, knife edge quick abrasion, wooden bad pencil cutting is more difficult.

The purpose of this utility model be adopt the knife edge along the pencil wood grain directly to moving the method for cutting, avoid the plumbous heart in working angles, to fracture, easy to use.

The straight cutting type pencil-knife of being made by plastic material is characterized in that: the knife rest (5) that blade (4) are installed is that moving track is sleeved on together with pencil-knife main body (1), knife rest (5) can move forward and backward along pencil-knife main body (1), knife rest (5) reset be by the elastic that is installed in locating piece (7) and elastic column (9) or and spring realize.

Utility model is achieved in that the pencil groove that earlier pencil is inserted the pencil-knife main body, the last plane that the part that making needs cutting is protruded the pencil-knife main body.The knife rest that blade is installed is under the effect of external force, the plane moves forward on the pencil-knife main body, the part of protruding the pencil on plane on the pencil-knife main body is reamed, when making the proal external force of knife rest on the knife rest less than elastic or spring tension, because the rubber band of ining succession between knife rest and the pencil-knife main body or and the effect of spring force, knife rest is resetted.Rotate one time pencil, just can cut once more.

The utility model since adopt the knife edge along wood grain directly to the each cutting output of the method for cutting all in control range, cutting resistance is very little, and the plumbous heart by the holder of pencil trench bottom and carry out directly to cutting, so plumbous heart frangibility not.Because along the grain directly to cutting, the cutting face is smooth, attractive in appearance.Blade is bonded at the knife rest the inside, only reveals the knife edge, and the knife edge is to paste plane on the pencil main body, moves in certain distance, and use is safe.

The concrete structure of utility model is provided by accompanying drawing and embodiment:

Fig. 1 is the profile according to the straight cutting type pencil-knife that the utility model proposes.

Fig. 2 is the vertical view according to the straight cutting type pencil-knife that the utility model proposes.

Describe in detail according to concrete device details and the working condition that the utility model proposes below in conjunction with Fig. 1, Fig. 2.

Pencil-knife main body (1) is cuboid, and is made of plastic.Have a pencil groove (3) to be used to insert the pencil that is cut in the middle of the pencil-knife main body (1), the prosthomere of pencil groove (3) is conical, and deutomerite is cylindrical.Conical cone angle is that 22-25 is better, conical one side is parallel to the last plane of pencil-knife main body (1), and high out-of-plane 0.4mm-0.6mm, because pencil inserts preferably 0.4mm-0.6mm of the plane will be cut on pencil groove (3) protrusion height.Columniform straight warp more preferably greater than pencil directly through 0.5mm-0.8mm.The front of pencil groove (3) has one to connect bits grooves (2) and be used to be hinged with the pencil bits that are cut.There is a positioning block (7) back of pencil-knife main body (1) lower plane, and it has two effects: the one, and the recurrence position of qualification knife rest (5).The 2nd, as rubber band (8) or an and fixed pivot of spring.

Knife rest (5) is that the frame body that is sleeved on the pencil-knife main body (1) can move forward and backward along pencil-knife main body (1).It also is made of plastic.Blade (4) is bonded at the inside of knife rest (5) top, the knife edge is facing to pencil groove (3) coning angle direction, only exposing the knife rest 2mm-2.5mm knife edge is to form through the plane of single face grinding with blade, and the last plane of pencil-knife main body (1) is being pasted on the plane that forms the knife edge.The pull handle (6) in the last the place ahead on knife rest (5) both sides, it is the stress point that knife rest (5) is moved forward.Mid point in front below knife rest (5) has an elastic column (9).Be used for tangling the rubber band (8) that knife rest is resetted.

The working angles of pencil is performed such: after pencil is inserted the pencil groove, head on the front of pencil-knife main body with thumb, middle finger and forefinger difference hook the past thumb direction broaching tool frame of pull handle on the knife rest, when knife rest moves forward in the process under the pulling force effect, pasting the pencil that the moving cutter of translation above the pencil-knife main body will protrude plane on the pencil-knife main body on the knife rest and reaming.When middle finger and forefinger pulling force during less than the pulling force of rubber band or spring, knife rest moves backward and resets.After knife rest resetted, rotating, pencil can cut once more.Repeat like this.

Claims

1, the straight cutting type pencil-knife of being made by plastic material is characterized in that: the knife rest (5) that blade (4) are installed is that moving track is sleeved on together with pencil-knife main body (1), knife rest (5) can move forward and backward along pencil-knife main body (1), knife rest (5) reset be by the elastic of locating piece of installing (7) and elastic column (9) or and spring realize.