CN104308863A

CN104308863A - Elastic piece support folding knife

Info

Publication number: CN104308863A
Application number: CN201410634957.1A
Authority: CN
Inventors: 赵宽学
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-12
Filing date: 2014-11-12
Publication date: 2015-01-28

Abstract

Disclosed is an elastic piece support folding knife. The elastic piece support folding knife comprises a blade and a knife handle plate, wherein the blade is hinged onto the knife handle plate through a pin shaft, the knife handle plate is fixed into a blade casket through a fixing pillar, the blade can be folded and contained in the blade casket and can also be unfolded from the blade casket, an elastic piece is arranged on the inner side of the knife handle plate, a flat bottom portion is arranged at the tail end of the blade, and a first bulge and a second bulge are arranged on the upper side and the lower side of the tail of the blade. According to the elastic piece support folding knife, the elastic piece is arranged on the inner side of the knife handle plate of the elastic piece support folding knife, the flat bottom portion is arranged at the tail end of the blade, the first bulge and the second bulge are arranged on the upper side and the lower side of the tail of the blade, and therefore the second bulge is limited by the fixing pillar when the blade is unfolded from the blade casket, and simultaneously the elastic piece is popped out and pressed against the flat bottom portion, and then the blade is under balance stress from all directions, and thereby the knife is firm and furthermore is safe to use. The elastic piece support folding knife is stable in support, simple in structure, and convenient to install and operate.

Description

Shell fragment supported folding cutter

Technical field

The present invention relates to a kind of cutter, especially relate to and a kind ofly blade can be folded the folding cutter in handle of a knife.

Background technology

Existing folding cutter is mostly made up of blade and the handle of a knife with certain cavity volume, blade is movably connected on handle of a knife by hinge, blade can be amounted in the cavity volume of handle of a knife with hand-power, also blade outwards can be launched from handle of a knife, some folding cutter is provided with switching device, is amounted to by toggle switch device and launch blade.Existing folding cutter is mainly supported by elastic switch device due to blade, and the strength that blade can bear in all directions is not identical, blade stressed excessive time easily turn back.

Existing folding cutter such as number of patent application is the Chinese invention patent application of 201110437211.8, and the patent application disclose a kind of jackknife, it comprises: blade, and top arranges lockup switch installing hole; Handle of a knife, bottom is provided with draw-in groove; Lockup switch, be arranged in lockup switch installing hole, and there is the lock part of the first side being positioned at blade, lock part has the unlocked position being installed on the lock position in draw-in groove when blade fastens with handle of a knife and departing from draw-in groove when blade is separated with handle of a knife.This patent application claims, jackknife provided by the invention, utilizes and has the lockup switch of lock part, can make blade fold into handle of a knife after realize safe locking, structure is simple, is easy to realize, and improves the security performance of jackknife.Although this jackknife security performance is relatively good, complex structure, installation and operation inconvenience.

Summary of the invention

In order to solve in prior art, common folding cutter blade is stressed excessively easily to turn back, the folding knife configuration of locking switch is complicated, install and unhandy problem, the invention provides another shell fragment supported folding cutter, this shell fragment supported folding cutter supports firm, and structure is simple, install and easy to operate.

The technical scheme that technical solution problem of the present invention adopts is: a kind of shell fragment supported folding cutter, comprise blade and handle of a knife plate, described blade hinge is on described handle of a knife plate, described handle of a knife plate fixed leg is fixed into blade magazine, described blade can fold in described blade magazine and also can launch from described blade magazine, it is characterized in that: inside described handle of a knife plate, shell fragment is set, the tail end of described blade arranges flat bottoms, the described upper and lower both sides of blade afterbody arrange the first protuberance and the second protuberance, when described blade launches from described blade magazine, described second protuberance is limited by described fixed leg, now described shell fragment ejects and props up described flat bottoms, when described blade turns back in described blade magazine, pressing described shell fragment makes it depart from described flat bottoms, described blade is turned back, when described first protuberance is limited by described fixed leg, described blade folds and puts in place.

Wherein, described blade magazine is by two pieces or the cavity volume that can hold described blade that is fixed into by one piece of folding described fixed leg of described handle of a knife plate; Described first protuberance and the second protuberance are the banks folding position and expanded position for limiting described blade; Described shell fragment is the plate with flexible sheet steel or other material, and described shell fragment top is level and smooth to coincide with the described flat bottoms on described blade, and described shell fragment can press down and make it press close to inside described handle of a knife plate, and described blade is gone back in described blade magazine.

As the technical scheme improved further, described shell fragment arranges convex bamboo shoot, and on described blade, the side of corresponding described shell fragment arranges recess, when described blade folds and puts in place, described convex bamboo shoot are stuck in described recess, and described blade can be avoided like this to rock in described blade magazine or deviate from.

The invention has the beneficial effects as follows: a kind of shell fragment supported folding cutter of the present invention, owing to arranging shell fragment inside described handle of a knife plate, the tail end of described blade arranges flat bottoms, the described upper and lower both sides of blade afterbody arrange the first protuberance and the second protuberance, when described blade launches from described blade magazine, described second protuberance is limited by described fixed leg, and now described shell fragment ejects and props up described flat bottoms, what described like this insert bottom and side were born balance in power and firmly, use safety.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the present invention is further described.

Fig. 1 is the structure perspective diagram that the present invention launches.

Fig. 2 is the top view of Fig. 1.

Fig. 3 is the structure perspective diagram that the present invention amounts to.

Fig. 4 is the top view of Fig. 3.

In figure each Reference numeral containing meaning: 1. blade; 2. the first protuberance; 3. shell fragment; 4. handle of a knife plate; 5. fixed leg; 6. convex bamboo shoot; 7. flat bottoms; 8. the second protuberance; 9. bearing pin; 10. recess.

Detailed description of the invention

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of shell fragment supported folding cutter, comprise blade 1 and handle of a knife plate 4, described blade 1 bearing pin 9 is hinged on described handle of a knife plate 4, described handle of a knife plate 4 fixed leg 5 is fixed into blade magazine, and described blade magazine is by two pieces or the cavity volume that can hold described blade 1 that is fixed into by one piece of folding described fixed leg 5 of described handle of a knife plate 4.Described blade 1 can fold in described blade magazine and also can launch from described blade magazine, the tail end of described blade 1 arranges flat bottoms 7, the upper and lower both sides of described blade 1 afterbody arrange the first protuberance 2 and the second protuberance 8, and described first protuberance 2 and the second protuberance 8 are the banks folding position and expanded position for limiting described blade 1.Inside described handle of a knife plate 4, shell fragment 3 is set, described shell fragment 3 is the plates with flexible sheet steel or other material, described shell fragment 3 top is level and smooth to coincide with the described flat bottoms 7 on described blade 1, described shell fragment 3 can press down and make it press close to inside described handle of a knife plate 4, and described blade 1 is gone back in described blade magazine.Described shell fragment 3 arranges convex bamboo shoot 6, and on described blade 1, the side of corresponding described shell fragment 3 arranges recess 10, and when described blade 1 folds and puts in place, described convex bamboo shoot 6 are stuck in described recess 10, and described blade 1 can be avoided like this to rock in described blade magazine or deviate from.

During use, with finger, described blade 1 is launched from described blade magazine, when described second protuberance 8 on described blade 1 is limited by described fixed leg 5, described shell fragment 3 ejects and props up the described flat bottoms 7 on described blade 1, now, the described blade 1 of expansion is firm at the supporting role lower stress uniform support of described second protuberance 8, described fixed leg 5, described flat bottoms 7 and described shell fragment 3.When described blade 1 is folded described blade magazine, first pressing with finger described shell fragment 3 makes it depart from described flat bottoms 7, again described blade 1 is turned back, when described first protuberance 2 is limited by described fixed leg 5, described blade 1 folds and puts in place, now, described convex bamboo shoot 6 on described shell fragment 3 are stuck in the described recess 10 on described blade 1, and described blade 1 can be avoided like this to rock in described blade magazine or deviate from.

Claims

1. a shell fragment supported folding cutter, comprise blade (1) and handle of a knife plate (4), described blade (1) bearing pin (9) is hinged on described handle of a knife plate (4), described handle of a knife plate (4) is fixed into blade magazine with fixed leg (5), described blade (1) can fold in described blade magazine and also can launch from described blade magazine, it is characterized in that: described handle of a knife plate (4) inner side arranges shell fragment (3), the tail end of described blade (1) arranges flat bottoms (7), the upper and lower both sides of described blade (1) afterbody arrange the first protuberance (2) and the second protuberance (8), when described blade (1) launches from described blade magazine, described second protuberance (8) is limited by described fixed leg (5), now described shell fragment (3) ejects and props up described flat bottoms (7), when described blade (1) turns back in described blade magazine, pressing described shell fragment (3) makes it depart from described flat bottoms (7), described blade (1) is turned back, when described first protuberance (2) is limited by described fixed leg (5), described blade (1) folds and puts in place.

2. a kind of shell fragment supported folding cutter according to claim 1, it is characterized in that: described shell fragment (3) is arranged convex bamboo shoot (6), the side of the upper corresponding described shell fragment (3) of described blade (1) arranges recess (10), when described blade (1) folds and puts in place, described convex bamboo shoot (6) are stuck in described recess (10).