CN2040841U

CN2040841U - Non-backward scissors

Info

Publication number: CN2040841U
Application number: CN 88216283
Authority: CN
Inventors: 朱家云
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-11-11
Filing date: 1988-11-11
Publication date: 1989-07-12

Abstract

The utility model relates to a hand-held cutting tool, which solves the phenomenon of regression when the existing scissors cut objects. The utility model is characterized in that open angles of the root parts of two cutting edges of the existing scissors are reduced, and thereby, the utilization rates of the cutting edges of the scissors are increased for causing the process of cut to save more labor. Scissor handles of travel scissors are carried out the improvement to cause the scissors to be more beautiful and sanitary.

Description

Non-backward scissors

The utility model relates to hand-held cutting tool.

At present, used cutting cloth in our daily life, haircut, shearing metal, scissors such as folding, all existence room for manoeuvre phenomenon more or less, during the higher object of shear strength, the room for manoeuvre phenomenon is particularly serious.With the Folding scissors is example, and according to the regulation of the DB/3703Y73002-87 of Zibo City, Shandong Province, scissors is being sheared new fine cloth one deck, and scissors blades allows to regress from the sword root to cutting point 40%.Therefore, in fact scissors blades has more than 1/3rd and can not play a role.And because that scissors begins to cut off the point of object is far away from axis, tool arm is longer, firmly bigger, wayward, after use a period of time, relative swag phenomenon appears in scissors two blades, not only influence is normal shears, and the service life of having reduced scissors, concerning existing Folding scissors, after folding, each position is exposed, and is promptly unhygienic, also not attractive in appearance.

The purpose of this utility model just is to provide a kind of scissors blades utilization rate height, is easy to control, long service life, the labour-saving scissors that do not regress, and provides a kind of health, a shape of cutting attractive in appearance for Folding scissors.

The utility model is to adopt to reduce scissors root open-angle, can make the object self-locking to reach the frictional force of being cut between object and the scissors blades, promptly on existing scissors basis, make blade and sideline out-of-line, the linearly transition of shape, circular arc or other curve form, thus scissors room for manoeuvre phenomenon reduced.To cutting making boxlike of folding scissors, and on surface pressure pattern, increase aesthetic feeling, folding back health.

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Accompanying drawing 1 is the Folding scissors schematic diagram.

In the drawings, cut 5 and haircut 3 link together, two haircuts 3 are riveted together by axis 4 again, and can relatively rotate, and sideline 6, blade 2, point of a knife 1 are arranged on haircut 3.If it is α that scissors two blades 2 roots open maximum angle, frictional force is f between object and the scissors by being cut, then according to the principle of object self-locking, and α=2arctgf, when the higher object of shear strength, frictional force f is less, thereby α is corresponding reduces.So reduce two blades, 2 root open-angle α, then can make to reduce when shearing object to regress, improve the utilization rate of scissors blades 2.At present, the α value of several scissors that we use always is respectively: cutting cloth scissors α＞60 °, barber's shears＞80 °, shearing metal scissors α＞60 °, Folding scissors α＞90 °, and the optimum value that its α does not regress is respectively 20 °≤α of cutting cloth scissors≤40 °, 15 °≤α of barber's shears≤30 °, 10 °≤α of shearing metal scissors≤25 °, 20 °≤α of Folding scissors≤40 °.For reducing the value of α, to cut point 1 is axle, close blade 2 to the rotation of axis 4 directions, thereby make blade 2 and near the sideline 6 of the haircut 3 at axis 4 places not on same straight line, linearly, circular arc or other order of a curve trapezoidal transition, and the blade of present employed scissors and sideline are point-blank.α is bigger, thereby exists and to move back portion's phenomenon, and in addition, according to scissors purposes difference, blade 2 can be made into straight line, camber line or other any curve.

Fig. 2 is the schematic diagram after Folding scissors folds.

Cut among the figure and make boxlike to 5, there is the pattern that two dragons are playing with a pearl on the surface, or patterns such as other scenery with hills and waters, flowers and plants, personage, to increase aesthetic feeling and the safety after folding.

The utility model compared with prior art has:

1, scissors does not regress, and has improved the utilization rate of scissors blades, thereby has prolonged the service life of scissors, raises labour productivity, than existing scissors economical with materials.

2, existing various scissors two blade root open-angle α＞60 °, and blade and sideline are in a straight line, scissors of the present utility model is by reducing two blade root open-angle α, make the close axis of shearing point when shearing object, shear laborsaving, to the scissors of scissors, barber's shears and the higher object of other shear strength of shearing metal, significant.

3, solved existing Folding scissors folding after, each several part expose unhygienic, inaesthetic drawback, various patterns is arranged cutting on the handle, and makes boxlike, more meets modern's requirement.

Claims

1, a kind of scissors that do not regress comprises: blade 2 on the haircut 3 and point of a knife 1, and connect the axis 4 of two haircuts 3 and cut 5, it is characterized in that: blade 2 and sideline 6 are point-blank.

2, scissors according to claim 1 is characterized in that: blade 2 and sideline 6 be shape or circular arc or other ladder form transition linearly.

3, scissors according to claim 1 is characterized in that: but shape straight line, camber line or the curve of blade 2.

4, scissors according to claim 1 is characterized in that: cutting of Folding scissors can be made into boxlike to 5, and the surface has that two dragons are playing with a pearl, scenery with hills and waters, personage or other pattern.