CN2282970Y - Self-locked folding knife - Google Patents

Abstract

The utility model relates to a self-locked folding knife which is composed of a knife handle provided with a knife magazine groove, a knife shaft fixed in the knife magazine groove at the end part of the knife handle and a knife body sheathed on the knife shaft, wherein the peripheral face of a shaft hole of the knife body is provided with a clamping opening and the knife shaft is transversely provided with a corresponding pin groove. One end of a spring clamping pin is fixed in the knife magazine groove, and the other end of the spring clamping pin penetrates through the pin groove of the knife shaft and is clamped with the clamping opening at the peripheral face of the shaft hole of the knife body. The side face of the end part of the knife handle is provided with a button, and a rod of the button penetrates through the knife shaft and contacts the spring clamping pin. When the knife body rotates, the spring clamping pin is clamped into the clamping opening under the action of elasticity, the knife body is automatically locked in the set clamping opening position and the knife body can be rotated so as to change positions again when the relieving button is pressed.

Description

The self-locking jackknife

The utility model is a kind of jackknife, and the blade of jackknife can block locking in the position of setting automatically in process folding or that open, makes blade be stabilized in the position of setting, can rotate blade and change the position when pressing disengage button.

By jackknife generally all is to open blade, when blade and handle of a knife are straight state, and the blade locking that is stuck.Jackknife is made of the handle of a knife of band tool magazine groove, the blade (blade) that is fixed on the cutter shaft in the tool magazine groove of handle of a knife end and is enclosed within cutter shaft.Be provided with elastic card in the handle of a knife storehouse of blade root relative position, perhaps the handle of a knife back is provided with elasticity back of the body hook.Open folding when straight when blade, the elastic card front end blocks the root of blade, and the hook end of perhaps carrying on the back the hook projection snaps in the groove of blade root, makes the blade locking and nonvoluntary revolution or turn back.In the time will turning back blade, then to leave the position relative with the hand propelled elastic card with the blade root, move on to the side of blade, perhaps press the hook end of back of the body shank other end perk back of the body hook projection in the groove, rotate blade and turn back.But this jackknife can only be rolled over a straight position at blade and block locking, can not be braked locking in the position of a plurality of settings, and it is locked to fold into the merging phase of tool magazine at blade.And hand will be pressed the elastic card that blade faces toward in the time will unlocking, and perhaps hand will be carried on the back the tool magazine notch that shank and blade fold into, and does not note using hand that rapid wear is hurted sb.'s feelings dangerous.When pressing back of the body shank, need to change the state that former hand normally holds handle of a knife, inconvenience.

The purpose of this utility model provides and a kind ofly can automatically lock blade in the position of a plurality of settings, and the jackknife that can unlock safe ready.

Self-locking jackknife of the present utility model, still by the handle of a knife of band tool magazine groove, be fixed on the cutter shaft in the tool magazine groove of handle of a knife end and be enclosed within the blade of cutter shaft.It is characterized in that: the axis hole side face of blade has bayonet socket, and cutter shaft laterally has corresponding cotter way, and spring detent one end is fixed in the tool magazine groove, and the cotter way that the spring detent other end passes cutter shaft blocks mutually with the bayonet socket of blade axis hole side face; The handle of a knife end sides is provided with button, and the bar of button passes cutter shaft and contacts with spring detent.So as required, the position that need lock at blade axis hole side face has bayonet socket, and when blade rotates the position that bayonet socket forwards the spring detent section to, spring detent snaps in bayonet socket, is about to blade and is locked in the desired position.When pressing button, the bar by button promotes spring detent and withdraws from bayonet socket, removes and blocks lock-out state, can rotate blade and fold to other position.Can have bayonet socket in blade axis hole side face many places, just can set a plurality of different braking and locking position of blade for.Because button is provided in a side of the side of handle of a knife end, the finger of actuation button is the side that is in handle of a knife, rotate blade and can not run into the finger of actuation button, and it is also more convenient to press button.In order to make blade be stuck more stablely, blocked more firm, the bayonet socket of blade axis hole side face is preferably the paired bayonet socket with the axle center symmetry, and spring detent is～shape, and block mutually with paired bayonet socket respectively at the two ends of spring detent perk section.When blade is locked, be to be 2 lockings of symmetry with the axle, so locking is more firm, and blade be positioned steadily, blade should not rock more.

So the utility model compared with the prior art, has as required the bayonet socket of setting one or two or several orientation at blade axis hole side face, the position that makes blade turn to respective settings is just automatically locked, and forms the self-locking jackknife of single location or two location or many location; The hand of controlling the handle of a knife both sides need not change the state of holding cutter, only needs to press button with thumb and just can make things convenient for successfully and unlock, and can rotate blade safely and reliably, and is very easy to use; Also lockable after blade is amounted to prevents from by mistake to open and child opens easily.

Accompanying drawing has been represented the self-locking jackknife structural representation of a kind of two location of the utility model.Wherein, Fig. 1 is whole external view, Fig. 2 is the front view of broken section, Fig. 3, Fig. 4 are in standard-sized sheet, half-open lock-out state respectively and topology view behind strip off handle of a knife side plate and the button, Fig. 5 is a partial sectional view of pressing c-c direction behind the button, and Fig. 6 is that blade, cutter shaft, spring detent, button are dismantled exploded view.

Embodiment below in conjunction with accompanying drawing specifically describes the utility model.The self-locking jackknife of this three location is made up of handle of a knife 1, cutter shaft 3, blade 2, spring detent 5, the button 4 of band tool magazine groove.Handle of a knife is by the relative handle plate in two sides and be clipped in the stifled bar of handle plate between on one side and constitute, and handle plate and stifled bar connect by pin or screw.The groove that forms between two handle plates is the tool magazine groove.One end of cutter shaft laterally has and spring detent cotter way 6 movingly.The fluting end of cutter shaft is connected with the handle plate of handle of a knife is inboard by screw, has been fixed in the tool magazine groove of handle of a knife end.Blade is enclosed within outside the cutter shaft.The axis hole side face of blade has the bayonet socket 7 of two pairs of 90 degree of being separated by, and every pair of bayonet socket is symmetrically distributed with the axle center.Spring detent is～the rectangular spring leaf of shape.One end of spring leaf has the hole, is connected the handle plate inboard of handle of a knife by trip bolt, and is fixed in the tool magazine groove.Cutter shaft, spring leaf are fixed on same handle plate inboard.Spring leaf other end perk, and pass the cotter way of cutter shaft, with the bayonet socket of blade axis hole side face mutually movingly and clamping.Button is boss shape, and the bottom surface has straight-bar, and button is positioned at the outstanding end of cutter shaft, and the front end of button passes the button hole of handle plate, is exposed at the outside of handle of a knife front end.The guide hole that the straight-bar of button passes cutter shaft enters cotter way and contacts with spring leaf.When the blade rotation, when blade and handle of a knife were perpendicular, a pair of bayonet socket forwarded the position of spring leaf perk section to, and the two ends of spring leaf perk section just snap in corresponding a pair of bayonet socket, was about to cutter head and was locked in this vertical position.When pressing button, the perk section that the straight-bar by button promotes spring leaf withdraws from bayonet socket, removes and blocks lock-out state, rotates blade and folds into the tool magazine groove and merge jackknife, perhaps forwards another is locked in the blade complete opening to the bayonet socket place position to.Button is provided in a side of the outside of handle of a knife end, holds the finger of handle of a knife and just can press button easily, rotates blade and can not run into the finger of actuation button.Mode is locked movingly closely with spring leaf and bayonet socket for blade, and is to be 2 lockings of symmetry with the axle, so locking is quite firm, does not almost rock.

Claims (2)

1, a kind of self-locking jackknife, by the handle of a knife of band tool magazine groove, be fixed on the cutter shaft in the tool magazine groove of handle of a knife end and be enclosed within the blade of cutter shaft, it is characterized in that: the axis hole side face of blade has bayonet socket, cutter shaft laterally has corresponding cotter way, spring detent one end is fixed in the tool magazine groove, the cotter way that the spring detent other end passes cutter shaft blocks mutually with the bayonet socket of blade axis hole side face, and the handle of a knife end sides is provided with button, and the bar of button passes cutter shaft and contacts with spring detent.

2, as the said self-locking jackknife of claim 1, it is characterized in that: the bayonet socket of blade axis hole side face is for the paired bayonet socket of axle center symmetry, and spring detent is～shape, and block mutually with paired bayonet socket respectively at the two ends of spring detent perk section.

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