CN102434555A

CN102434555A - Strong stitching needle

Info

Publication number: CN102434555A
Application number: CN2011103281450A
Authority: CN
Inventors: 吴福儿; 冉凌
Original assignee: University of Shaoxing
Current assignee: University of Shaoxing
Priority date: 2011-10-26
Filing date: 2011-10-26
Publication date: 2012-05-02

Abstract

The invention discloses a strong stitching needle, which comprises a needle beam and needle posts respectively arranged at two ends of the needle beam. The needle beam and the needle posts are of integrated structure, the cross sections of the needle beam and the needle posts are rectangles equal in size, the lower end faces of the needle posts are inward inclined, grooves are arranged on the outer lateral faces of the needle posts along the longitudinal direction, and the grooves are intersected with the lower end faces of the needle posts. Compared with the prior art, by adopting the technical scheme, namely, the lower end faces of the needle posts are inward inclined, the grooves are arranged on the outer lateral faces of the needle posts, and the lower end cutting edges of the needle posts are shortened to a shortest sharp cutting edge compared with a traditional bar-shaped cutting edge, the stitching needle of the structure is stronger in binding penetrating force and bigger in thickness than a traditional stitching needle.

Description

Powerful staple

Technical field

The present invention relates to staple, especially a kind of powerful staple.

Background technique

Conventional staple is as shown in Figure 1; Be to constitute by needle beam 1 ' and the shank that is arranged at needle beam 1 ' two ends 2 '; Needle beam 1 ' is structure as a whole with shank 2 ' and their cross section is equal-sized rectangle, and the underpart of shank 2 ' is provided with " one " font cutting edge 3 '.The defective that this structure of conventional staple exists is: the bookbinding penetrating power of " one " font cutting edge 3 ' will be worse than sharp-pointed shape cutting edge, makes that the bookbinding thickness of conventional staple is not excavated fully.

Summary of the invention

The objective of the invention is to: a kind of stronger powerful staple of penetrating power of binding is provided.

For realizing above-mentioned purpose, the present invention can take following technical proposals:

A kind of powerful staple of the present invention; Comprise needle beam; Be arranged at the shank at needle beam two ends respectively, said needle beam and shank are structure as a whole and their cross section is equal-sized rectangle, and the lower end surface of shank slopes inwardly; On the outer side surface of said shank, longitudinally be provided with groove, the lower end surface of said groove and shank crosses.

Said groove is a V-shaped groove, and the outer side surface of the lower end of this V-shaped groove groove face and the lower end surface of shank and shank crosses, and constitutes triangular pyramid awl point.

A kind of powerful staple; Comprise needle beam; Be arranged at the shank at needle beam two ends respectively, said needle beam and shank are structure as a whole and their cross section is equal-sized rectangle, and the lower end surface of shank is outward-dipping; On the inner side surface of said shank, longitudinally be provided with groove, the lower end surface of said groove and shank crosses.

Compared with prior art the invention has the beneficial effects as follows: adopt technique scheme; The lower end surface that is shank slopes inwardly, and the outer side surface of shank is provided with groove, the staple of this structure; The lower end cutting edge of shank shortens than conventional " one " font cutting edge; Shorten to the shortest sharp-pointed cutting edge that is, its bookbinding penetrating power is stronger, than the bookbinding thickness increase of conventional staple.

Further beneficial effect is: said groove is a V-shaped groove; The outer side surface of the lower end of this V-shaped groove groove face and the lower end surface of shank and shank crosses; Constitute triangular pyramid awl point; This structure, the cross sectional area of its shank are under the situation that the cross sectional area with conventional staple shank equates, not only its triangular pyramid awl point has than " one " font cutting edge and has stronger bookbinding penetrating power; And its shank that has a V-shaped groove is that the shank of rectangle has stronger counter-bending ability than cross section, further improved bookbinding thickness.

Description of drawings

Fig. 1 is the prior art constructions schematic representation of staple;

Fig. 2 is a structural representation of the present invention.

Embodiment

As shown in Figure 2, a kind of powerful staple of the present invention comprises needle beam 1; With two shanks 2 that are arranged at needle beam 1 two ends respectively, said two shanks 2 are structure as a whole with described needle beam 1, and the cross section of needle beam 1 is a rectangular; Two shanks 2 are to be bent vertically downward by needle beam 1 two ends to constitute; The lower end surface 3 of two shanks 2 is to said powerful staple inside upper part plane inclined, longitudinally is being equipped with V-shaped groove 4 (shank 2 offering V-shaped groove 4 before, the cross section of its cross section and needle beam 1 is identical) on the outer side surface of said two shanks 2; As preferably, this V-shaped groove 4 is a groove from bottom to top; Each V-shaped groove 4 has two groove faces, and the lower end surface 3 of the lower end of each groove face and shank 2 and the outer side surface of shank 2 cross, and constitutes triangular pyramid awl point 5 (lower end of each shank 2, said triangular pyramid awl point 5 has two).

Stapler used in the present invention, its structure is identical with conventional stapler.As preferably, being used on the stapler base bends the guide groove of shank 2, and the cross section of its bottom surface is and the suitable V-arrangement in said shank 2 lower ends.Best scheme is, said triangular pyramid awl point 5 does not contact with said guide groove bottom surface, and for reaching this purpose, the ditch that is used to dodge triangular pyramid awl sharp 5 can be offered in the both sides of guide groove bottom surface.

Powerful staple as another kind of embodiment; Its structure is identical with the powerful staple of such scheme; Difference only is: the lower end surface of shank 2 is outward-dipping, on the inner side surface of said shank 2, longitudinally is provided with groove, and the lower end surface of said groove and shank 2 crosses.

Claims

1. powerful staple; Comprise needle beam (1); Be arranged at the shank (2) at needle beam (1) two ends respectively, said needle beam (1) and shank (2) are structure as a whole and their cross section is equal-sized rectangle, it is characterized in that: the lower end surface (3) of shank (2) slopes inwardly; On the outer side surface of said shank (2), longitudinally be provided with groove (4), said groove (4) crosses with the lower end surface (3) of shank (2).

2. powerful staple according to claim 1 is characterized in that: said groove (4) is a V-shaped groove, and the lower end surface (3) of the lower end of this V-shaped groove groove face and shank (2) and the outer side surface of shank (2) cross, and constitutes triangular pyramid awl point (5).

3. powerful staple; Comprise needle beam; Be arranged at the shank at needle beam two ends respectively, said needle beam and shank are structure as a whole and their cross section is equal-sized rectangle, and it is characterized in that: the lower end surface of shank is outward-dipping; On the inner side surface of said shank, longitudinally be provided with groove, the lower end surface of said groove and shank crosses.