CN2264679Y

CN2264679Y - Propelling pencil capable of rotary sharpening lead

Info

Publication number: CN2264679Y
Application number: CN 96235911
Authority: CN
Inventors: 王智勇
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-28
Filing date: 1996-05-28
Publication date: 1997-10-15
Anticipated expiration: 2006-05-28

Abstract

The utility model discloses a propelling pencil capable of rotatablely sharpening pencil tips, relating to a pencil for writing and drawing. The purposes of the propelling pencil capable of rotatablely sharpening pencil tips are that the pencil does not break, the writing is free, and the pencil is convenient for sharpening. The structure of the propelling pencil capable of rotatablely sharpening pencil tips is that the front end of a pencil holder is provided with a cutting holder provided with an elastic cutting block, and sharpener sealing loose sleeves are arranged in the cutting holder and an outer sleeve by a spring; the sharpener sealing loose sleeves are matched with the elastic cutting block for grinding pencils. The utility model gathers the advantages of wooden pencils and propelling pencils, the pencils are not broken, the pencil cores are conveniently to be cut rotatablely, and the time is saved. The utility model is suitable for various occasions of writing, fine arts, drawing, etc.

Description

Tip of a pencil rotary grinding formula propelling pencil

The utility model relates to a kind of usefulness pen of writing and paint, and refers in particular to tip of a pencil rotary grinding formula propelling pencil.

In background technology, the pencil of selling on the market is two kinds of wooden formula and movable systems, and rod formula pencil manufacturing process complexity wherein, and consume a large amount of high-quality timber in addition, when children cut wooden pencil, not only bothers but also dangerous.The many at present employing diameters of movable system pencil are 0.5～0.9 millimeter pencil-lead, because this pencil insufficient strength, use frangibility, children and student not only waste greatly, expend time in through the normal off pen, and the handwriting thickness of writing, paint can not change, and is especially undesirable to professional's results of use such as the fine arts, drawing.

The purpose of this utility model is the problem that exists in the above-mentioned technology, develops a kind of tip of a pencil rotary grinding formula propelling pencil, and it is continuous to reach lead for retractable pencil, and energy rotary grinding lead for retractable pencil point is suitable for the purpose that professionals such as children, student, the fine arts, drawing use.

Technical solution of the present utility model is as follows:

Comprise that penholder 1 tail end assembling elasticity pushes away the pencil device, the elastic claw of penholder 1 anterior assembling clamping pencil 8, be characterized in, the assembling of penholder 1 front end has the knife rest 2 of elasticity cutter piece 4, with spring 6 assembling envelope cutter kinks 5, movably seal cutter kink 5 inner hole surface and make grinding lead for retractable pencil 8 with elasticity cutter piece 4 and cooperate in knife rest 2 and the overcoat 3 that connects.

Technical solution of the present utility model also comprises:

Three cutter pieces 4 of assembling elasticity on the knife rest 2, cutter piece 4 bases are annular, and cutter piece 4 inner faces have the plumbous raised line of longitudinal grinding, and cutter piece 4 top sections are curved to be done to close up to open resilient engagement with envelope cutter kink 5.

When three cutter pieces 4 of the elasticity on the knife rest 2 close up for cone, its inclined-plane bus and center line angle can be 4 ° 30 '～5 ° 30 '.

Going out in the envelope cutter kink 5 that plumbous hole 7 internal diameters can be 2.10～2.5 millimeters by diameter is 2 millimeters lead for retractable pencil 8.

Description of drawings of the present utility model is as follows:

Fig. 1 is the anterior cut-away view of the utility model penholder.

Fig. 2 is the knife rest cut-away view.

Fig. 3 is the vertical view of Fig. 2.

Fig. 4 is envelope cutter kink 5 cutaway views.

Above-mentioned number in the figure is described as follows:

The 1-penholder, the 2-knife rest, the 3-overcoat, 4-cutter piece, 5-envelope cutter kink, 6-spring, 7-go out plumbous through hole, the 8-lead for retractable pencil.

Be described in further detail below in conjunction with accompanying drawing:

Referring to Fig. 1, penholder 1 tail end assembling elasticity pushes away plumbous device, and is the same with the automatic pencil structure of selling in the market, and the elasticity three-jaw of penholder 1 anterior assembling clamping lead for retractable pencil 8 all is the background technology structure also, no longer narrates at this.When using the grinding lead for retractable pencil, suit knife rest 2 on the penholder 1 front end inclined-plane, knife rest 2 rear ends assembling overcoat 3, in knife rest 2, assemble cyclic spring cutter piece 4 and spring 6 on the base, cutter piece 4 sections are three uniform curved knife pieces, cutter piece 4 inner faces are grinding face, the longitudinal grinding raised line is arranged on the grinding face, the interval that 30 ° at central angle is arranged between three cutter pieces 4 of likeness in form file face, cutter kink 5 is movably sealed in assembling in knife rest 2 and overcoat 3, kink 5 left ends touch spring 6, and kink 5 is made to draw in elasticity grinding lead for retractable pencil 8 with cutter piece 4 and cooperated.After the lead for retractable pencil grinding, desirable lower slide 2, knife rest 2 also can pass through spiral marking connection with penholder 1 front end.Referring to Fig. 2 and Fig. 3, assembling spring 6 and cutter piece 4 on the base in the

knife rest

2,4 ends of cutter piece, be open annular or non-open circles annular, and cutter piece 4 tops are 3 arc-shaped leaf pieces, can draw in and cut lead for retractable pencil, and the interval of 30 ° at central angle is arranged between the expansible, three leaf pieces.Referring to Fig. 4, this is an envelope cutter kink 5, and endoporus is the conical surface and cooperates with cutter piece 4 peripheries, and kink 5 male cone (strobilus masculinus)s cooperate with overcoat 3 taper holes.Operation principle is like this, lead for retractable pencil 8 adopts 2 millimeters of diameters, and when need grinding tip of a pencil, pressing envelope cutter kink 5, that cutter piece 4 is closed up is tapered, the lead for retractable pencil head is positioned at cutter piece 4, rotation pencil lead for retractable pencil loop bar drives lead for retractable pencil 8 and rotates then, and the lead for retractable pencil head end is subjected to grinding in taper hole shape cutter piece 4, lead dust drops on knife rest 2 spaces, the back envelope cutter kink 5 of loosing one's grip rebounds, and cutter piece 4 opens, and sets back.

Advantage of the present utility model and effect are as follows:

1, owing to adopt the elastic rotary grinding attachment, institute thinks children, student, adult The grinding lead for retractable pencil is provided convenience, can be ground to oneself think satisfied till, saved the time, Eliminated sense of insecurity.

2, compare wood pencil, the present invention is a large amount of high-quality timber for country has saved, and Integrate propelling pencil.

3, compare the movable lead pencil, the present invention has increased lead core diameter, has improved lead for retractable pencil intensity, writes with facility, and has solved in the past thin lead for retractable pencil frangibility, takes the time-consuming problem of material

4, improved the scope of application, be applicable to write, the various occasions such as fine arts, drawing Use.

5, the grinding cutter of cutting plumbous head can be made with the mould of moulding, make similar file it The surface of sample, very easily processing, a whole set of manufacture craft is simple, and cost is low, and product is anti-With, can carry out grinding to the different hardness lead for retractable pencil, the utility model product is rich in vitality, Prospect and economic benefit are considerable.

Claims

1, tip of a pencil rotary grinding formula propelling pencil, comprise that penholder (1) tail end assembling elasticity pushes away the pencil device, the elastic claw of penholder (1) anterior assembling clamping pencil (8), it is characterized in that: the assembling of penholder (1) front end has the knife rest (2) of elasticity cutter piece (4), with spring (6) assembling envelope cutter kink (5), movably seal cutter kink (5) inner hole surface and make grinding lead for retractable pencil (8) with elasticity cutter piece (4) and cooperate in knife rest (2) and the overcoat (3) that connects.

2, according to the described tip of a pencil rotary grinding of claim 1 formula propelling pencil, it is characterized in that: knife rest (2) is gone up assembling three cutter pieces of elasticity (4), cutter piece (4) base is an annular, cutter piece (4) inner face has the plumbous raised line of longitudinal grinding, and cutter piece (4) top section is curved to be done to close up to open resilient engagement with envelope cutter kink (5).

3, according to the described tip of a pencil rotary grinding of claim 1 formula propelling pencil, it is characterized in that: when three cutter pieces of the elasticity on the knife rest (2) (4) close up for cone, its inclined-plane bus and center line angle be 4 ° 30 '～5 ° 30 '.

4, according to the described tip of a pencil rotary grinding of claim 1 formula propelling pencil, it is characterized in that: going out plumbous hole (7) internal diameter and be in 2.10～2.5 millimeters the envelope cutter kink (5) by diameter is 2 millimeters lead for retractable pencil (8).