CN2749642Y

CN2749642Y - Locking mechanism of folding knife

Info

Publication number: CN2749642Y
Application number: CN 200420109206
Authority: CN
Inventors: 张增华
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-24
Filing date: 2004-11-24
Publication date: 2006-01-04
Anticipated expiration: 2014-11-24

Abstract

The utility model relates to a locking mechanism of a folding knife which comprises a control button which is arranged on a knife handle. The control button is in positioning match with the root of a blade, the bottom of the control button is padded with a reset spring, the control button is in the shape of an integral type square column, the side edge of the control button is matched with a positioning notch of the root of the blade, the middle part of the side edge is provided with an unfilled corner corresponding to the rotating space of the root of the blade, a blind hole which is staggered with the unfilled corner is arranged on the bottom of the control button, the reset spring is arranged in the blind hole and an elastic reset device is formed. The control button of the utility model is integral, the depth of the blind hole is deep, so most of the height of the reset spring is arranged in the blind hole of the control button and the height of the required installation space is reduced. Thereby, the integral thickness of the knife handle is thinned, the structure of the knife tool is compact and beautiful and the knife is convenient to carry. In addition, the square column shape can not be moved and rotated during the use and the control button is reliably positioned and matched with the blade. The utility model can be used on both folding elastic knives and ordinary folding knives, having good versatility.

Description

The jackknife locking mechanism

Technical field: the utility model relates to the locking mechanism of a kind of jackknife, particularly jackknife.

Background technology: folding lifts generally need adopt control button and blade root location to cooperate locking, avoids blade to rock.General control button all is cylindrical, and middle car goes out thin neck, as blade root rotation space.Because the control button bottom needs to be lined with back-moving spring, placing the blind hole of back-moving spring is cut off by thin neck place, the degree of depth is superficial, the back-moving spring major part highly is contained in the thickness that makes handle of a knife in the handle of a knife and wants suitable great talent to install, the volume of cutter increases like this, makes structure not compact, can't be ultra-thin as common jack knife, inconvenience is carried, and attractive in appearance inadequately.Columniform control button is easier to when using that displacement is rotated and the blade location cooperates reliably not enough, and this locking mechanism can only be used on the folding lifts, just can't operate on by one hand if be used on the common jack knife, and versatility is not enough.

Summary of the invention: at the deficiencies in the prior art, the utility model provides a kind of compactness rational in infrastructure, the jackknife locking mechanism that versatility is good.

The utility model comprises being installed on the handle of a knife locatees the control button that cooperates with the blade root, this control button bottom is lined with back-moving spring, control button is the monoblock type square column type, the locating notch of its side and blade root cooperates, be provided with and the corresponding unfilled corner of blade root rotation space in this middle side edge, the bottom of control button is provided with the blind hole that staggers with unfilled corner, and back-moving spring places blind hole to constitute elasticity reset device.

Control button of the present utility model is whole, the degree of depth of blind hole is deep, make the big portion of back-moving spring highly place the blind hole of control button, required installing space height has more minimizing, can make the integral thickness attenuation of handle of a knife like this, the more compact structure of cutter is attractive in appearance, easy to carry, and the square column profile can not be shifted in using and rotates and the blade location cooperates reliable, all can use on folding lifts and common jack knife, versatility is good.

Further specify the utility model below in conjunction with drawings and Examples.

Description of drawings: Fig. 1 is the view of installing and using of embodiment;

Fig. 2 is the A-A cutaway view Amplified image of Fig. 1;

Fig. 3 is the released state figure of Fig. 2;

Fig. 4 is the stereogram of control button;

Fig. 5 is the B-B profile of Fig. 4.

Embodiment: extremely shown in Figure 5 as Fig. 1, the control button 1 that the bottom is lined with back-moving spring 5 is installed on the handle of a knife 3, this control button 1 is the monoblock type square column type, the locating notch of its side and blade 2 roots cooperates, be provided with and the corresponding unfilled corner 6 of blade 2 root rotation spaces in this middle side edge, the bottom of control button 1 is provided with the blind hole 4 that staggers with unfilled corner 6, and back-moving spring 5 places blind hole 4 to constitute elasticity reset device.When blade 2 is opened, as Fig. 2, control button 1 bullet on the spring 5 that is reset, the height of unfilled corner 6 and blade 2 roots stagger, and the locating notch of the square column type side of control button 1 and blade 2 roots one side cooperates locking.Blade 2 locks when drawing in too.When pressing control button 1, as Fig. 3, the height of unfilled corner 6 is the same with blade 2 roots, and blade 2 releases can be passed through unfilled corner 6 rotating opening or gathering.

The exposed junction of the control button 1 of present embodiment is cylindrical, itself and be built in and be provided with step 7 between the part in the handle of a knife 3 and constitute and go up the cartridge stop bit architecture, can prevent that like this control button 1 from ejecting handle of a knife 3, do not need to establish gear shaft etc., and moulded better appearance, rational in infrastructure.One horizontal seamed edge 8 of the unfilled corner 6 on the control button 1 can be smooth fillet seamed edge, can be used on like this on the common jack knife, after blade 2 draws in, can block blade 2 roots a little, prevents to rock.In the time of need opening, then do not need to press control button 1, can make blade 2 roots slip over horizontal seamed edge 8 and rotate handled easily.

Claims

1, a kind of jackknife locking mechanism, comprise and be installed in the control button that cooperates with blade root location on the handle of a knife, this control button bottom is lined with back-moving spring, it is characterized by: control button (1) is the monoblock type square column type, the locating notch of its side and blade (2) root cooperates, be provided with and the corresponding unfilled corner of blade (2) root rotation space (6) in this middle side edge, the blind hole (4) that the bottom of control button (1) is provided with and unfilled corner (6) staggers, back-moving spring (5) place blind hole (4) to constitute elasticity reset device.

2, jackknife locking mechanism according to claim 1 is characterized by: the exposed junction of control button (1) is cylindrical, itself and be built between the part in the handle of a knife (3) and be provided with cartridge stop bit architecture on step (7) formation.

3, jackknife locking mechanism according to claim 1 and 2 is characterized by: a horizontal seamed edge (8) of the unfilled corner (6) on the control button (1) is smooth fillet seamed edge.