CN201089321Y - Envelope-unfolding tool bit component - Google Patents

Abstract

The utility model relates to a knife head component of envelope opener, comprising a knife head body and a knife blade, wherein, a transverse paper running groove is arranged on the knife head body; the knife blade is fixed on an upper groove face body of the transverse groove; a knifepoint end points to the lower groove face of the transverse groove; a blade edge is against the paper running direction of the transverse groove. When an envelope is opened, only one end of the envelope needs to be pulled along the transverse groove, then the blade can cut one end of the envelope, and the cut is flat and straight. The utility model is characterized in reasonable design, simple structure, safe operation, high efficiency and difficulty on damaging contents. The utility model not only can be individually used as an envelope opening appliance, but also can be combined with the prior practical stationery to form multifunction stationery, providing use convenience for fast-pace office business.

Description

A kind of envelope cutter head member of opening a letter

Technical field:

The utility model relate to a kind of can be in order to the envelope cutter head member of opening a letter of cutting envelope, it can be blended in to constitute to have on the utilities such as stationery, office appliance tears the multi-functional stationery that cuts envelope sealing open.

Background technology:

Writing letter is that people link up emotion, the requisite means of business liaison, both ancient by the mode consignment of letter, has irreplaceable characteristics again.The mode of disassembling envelope is varied, have free-handly tear, useful pocket knife is severed or scissors is cut off.Free-hand tearing obviously lost civilization; Pocket knife is severed, and not only is difficult to find entry, and the point of a knife end gos deep into the inner content that easily by mistake decreases of envelope; The scissors operation is difficult to grasp the length of cutting off part again, also is easy to injure content.Above-mentioned many envelope modes of opening a letter produce paper scrap toward contact, easily pollute working environment.To open the envelope thing little though tear open, also affects manufacturer's the heart, how to provide a kind of easy scheme of opening a letter the object of the utility model research.

Summary of the invention:

The purpose of this utility model is a kind of envelope cutter head member of opening a letter that is blended on the practical stationery of installing of design.

Technical solutions of the utility model are achieved in that a kind of envelope cutter head member of opening a letter, comprise cutter head body and blade, it is characterized in that body is provided with delegation's paper translot, blade is fixed on the upper groove surface body of translot, the point of a knife end points to groove face under the translot, and the knife edge is in face of the capable paper direction of translot.When disassembling envelope, only need an end of envelope is spurred along translot, blade can be severed an end of envelope, and scarfing is straight.

The corresponding point of a knife of groove face place is provided with concave arc surface under the described translot, and the point of a knife end falls into down among the groove arcwall face, and with the arcwall face beeline less than 0.3mm.So both can guarantee to keep the efficient of cutting envelope lower floor paper again and do not cut off fully, and only envelope cut out the mouth of winning the confidence, and do not produce paper scrap.

It is domatic also can be provided with two arches under the described translot on the groove face, the point of a knife end fall into two arches domatic between, and with following groove face beeline less than 0.3mm.Can reach purpose same as described above.

The utlity model has reasonable in design, simple in structure, handling safety efficient height, be difficult for injuring content, also do not produce the characteristics of paper scrap, both can be independently as opening a letter the envelope apparatus, can make up with existing practical stationery again, as: combine with writing case body, calculator body or pen container body etc., constitute multi-functional stationery, the facility of use is provided for the fast pace office.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 opens a letter and seals cutter head member stereogram

Fig. 2 opens a letter and seals cutter head member three-dimensional exploded view

Fig. 3 opens a letter and seals cutter head member front elevation

Fig. 4 opens a letter and seals another structural perspective of cutter head member

Fig. 5 has the pen container schematic diagram of the envelope cutter head member of opening a letter

Wherein

Groove face under the 1-body 11-translot 12-

13-arcwall face 14-breach 15-projection

The domatic 17-angle of 16-2-blade

21-point of a knife end 22-knife edge 23-through hole

3-lid α-angle 4-pen container

The specific embodiment:

With reference to Fig. 1, Fig. 2 and Fig. 3, a kind of envelope cutter head member of opening a letter, form by cutter head body 1 and blade 2, wherein body 1 is provided with delegation's paper translot 11, and blade 2 is fixed on the upper groove surface body 1 of translot, and the knife edge 22 is in face of the capable paper direction of translot, point of a knife end 21 points to groove face 12 under the translot, groove face 12 corresponding point of a knife places are provided with concave arc surface 13 under the translot, and point of a knife end 21 falls into down among the groove face arcwall face 13, and with the beeline of arcwall face 13 less than 0.3mm.The design of following concave arc surface can improve the cutting efficiency of blade greatly.During operation, envelope walks to the arcwall face section, is forced into by blade and produces deformation in the arcwall face, and under the elastic reaction of self, keeps going up trend very again, and both interact and the easier envelope that makes is severed by blade.Point of a knife end 21 can guarantee that with the minimum clearance of arcwall face 13 the part envelope is not thoroughly cut off, and keeps the adhesion state, so do not produce paper scrap.

With reference to Fig. 3,22 one-tenth on the knife edge of blade is skewed, and it constitutes an acute angle angle with following groove face 12, can envelope be forced among the recessed arcwall face 13 effectively like this, and the knife edge 22 relative envelopes have the pulling cutting action, avoid the paper fiber to hang on the knife edge, influence continuous service efficiency.α among described angle such as Fig. 3.

With reference to Fig. 2, this stereogram provides blade 2 and is positioned at a kind of concrete scheme on the body 1.The body of translot upper groove surface is provided with a rectangular indentation 14, at least convex with a location projection 15 in the breach 14, blade 2 is except that the inclination knife edge, all the other and this body rectangular indentation 14 are coincide, play 2 effects of constraint blade, produce when avoiding blade stressed and rock or be offset, influence cutting efficiency, blade 2 is provided with a through hole 23 corresponding to projection 15 positions, one lid 3 that coincide with body 1 rectangular indentation 14 is provided with a locating hole corresponding to projection 15, lid 3 is established according to the projection button and is positioned on the body 1, forms complete member integral body.The number of positioning convex column 15 is decided on the breach size, is good with two positioning convex column 15 generally, and its 2 can strong fix blade 2.Present embodiment aims to provide a kind of concrete structure of realizing technical solutions of the utility model, be not to be used for limiting this practicality, breach 14 on the body 1 also can be non-rectangular configuration, 2 of positioning blades need blade an edge and a location projection 15 inconsistent with the edge of two breach 14 or a breach 14 to cooperate, can the strong fix blade.

With reference to Fig. 4, it is domatic 16 also can be provided with two arches under the translot on the groove face, and point of a knife end 21 falls between two arches domatic 16, and with following groove face 12 beelines less than 0.3mm.The sloping paddy that utilizes two domatic 16 centres to form replaces the following concave arc surface 13 in the example, and it can reach play the same tune on different musical instruments wonderful.In addition, angle 17 structures are processed in the porch of translot 11, are the monocline mouth among the figure, also can be processed into the diclinic horn mouth, are convenient to the incision of envelope.

With reference to Fig. 5, this is the example that a envelope cutter head member of opening a letter combines with pen container 4, its also can with structures such as calculator, pencil sharpener, card holder, writing case, just do not enumerate one by one here.

Claims (6)

1. the envelope cutter head member of opening a letter comprises cutter head body and blade, it is characterized in that body is provided with delegation's paper translot, and blade is fixed on the upper groove surface body of translot, and the point of a knife end points to groove face under the translot, and the knife edge is in face of the capable paper direction of translot.

2. a kind of envelope cutter head member of opening a letter according to claim 1 is characterized in that the corresponding point of a knife of groove face place is provided with concave arc surface under the translot, and the point of a knife end falls into down among the groove face arcwall face, and with the arcwall face beeline less than 0.3mm.

3. a kind of envelope cutter head member of opening a letter according to claim 1, it is domatic to it is characterized in that under the translot that groove face is provided with two arches, the point of a knife end fall into two arches domatic between, and with following groove face beeline less than 0.3mm.

4. according to claim 1,2 or 3 described a kind of envelope cutter head members of opening a letter, it is characterized in that the skewed knife edge of blade and following groove face constitute an acute angle angle.

5. a kind of envelope cutter head member of opening a letter according to claim 1, the body that it is characterized in that the translot upper groove surface is provided with a rectangular indentation, at least convex with a location projection in the breach, blade is except that the inclination knife edge, all the other and this body rectangular indentation are coincide, blade is provided with a through hole corresponding to the projection position, and a lid that coincide with the body rectangular indentation is provided with a locating hole corresponding to projection, and lid is established according to the projection button and is positioned on the body.

6. according to claim 1,2,3 or 5 described a kind of envelope cutter head members of opening a letter, it is characterized in that the porch of translot becomes the angle structure.

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