CN105108778A - Folding knife - Google Patents

Folding knife Download PDF

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Publication number
CN105108778A
CN105108778A CN201510593476.5A CN201510593476A CN105108778A CN 105108778 A CN105108778 A CN 105108778A CN 201510593476 A CN201510593476 A CN 201510593476A CN 105108778 A CN105108778 A CN 105108778A
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CN
China
Prior art keywords
knife
handle
cutter hub
protection brace
brace
Prior art date
Application number
CN201510593476.5A
Other languages
Chinese (zh)
Inventor
王德胜
Original Assignee
王德胜
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 王德胜 filed Critical 王德胜
Priority to CN201510593476.5A priority Critical patent/CN105108778A/en
Publication of CN105108778A publication Critical patent/CN105108778A/en

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Abstract

The invention relates to the field of tools and particularly discloses a folding knife. The folding knife comprises a handle, a first protection connection sheet, a second protection connection sheet and a knife body. The handle is provided with an accommodation groove for accommodating the knife body. One end of the knife body is pivoted to the handle through a first connection shaft. Part of the first protection connection sheet is disposed in the accommodation groove, and the first protection connection sheet is disposed between one side of the knife body and the inside of the handle. Part of the second protection connection sheet is disposed in the accommodation groove, and the second protection connection sheet is disposed between the other side of the knife body and the inside of the handle. One end, pivoted to the handle, of the knife body is further pivoted to one end of the first protection connection sheet and one end of the second protection connection sheet through a second connection shaft. Parts, away from the second connection shaft, of the first protection connection sheet and the second protection connection sheet are in sliding connection with the inside of the handle respectively. Impact force from the knife body can be shared through the protection connection sheets, and accordingly the resistance strength of a connection point between the knife body and the handle can be enhanced.

Description

Jackknife

Technical field

The present invention relates to cutter field, in particular to a kind of jackknife.

Background technology

The mode that jackknife commercially available at present all adopts handle of a knife to be connected in any with cutter hub.But, when using such jackknife cutting article, the holding capacity of whole cutter hub is all passed to this tie point between cutter hub and handle of a knife, although adopted relevant art to strengthen the intensity of this tie point in prior art, but such tie point is still easy compared with impaired under noticeable effort, causes jackknife to lose use value.

Summary of the invention

The object of the present invention is to provide a kind of jackknife, with the problem that the power resistance strength improving the tie point between the cutter hub of jackknife in prior art and handle of a knife is more weak.

The present invention is achieved in that

A kind of jackknife, comprise handle of a knife, first protection brace, second protection brace and cutter hub, described handle of a knife is provided with the storage tank for accommodating described cutter hub, one end of described cutter hub is by the first connecting axle and described handle of a knife pivot joint, described first protection brace to be partly placed in described storage tank and described first protection brace between the side and the inner side of described handle of a knife of described cutter hub, described second protection brace to be partly placed in described storage tank and described second protection brace between the opposite side and the inner side of described handle of a knife of described cutter hub, one end of described cutter hub and described handle of a knife pivot joint also protects one end of brace and described second to protect one end pivot joint of brace by the second connecting axle and described first, described first protection brace is connected with the inner slide of described handle of a knife respectively with the part of described second protection brace away from described second connecting axle.

Further; the length of described cutter hub is longer than the length of described handle of a knife; and the length of described each protection brace is more than or equal to the length of point of a knife to described second connecting axle of described cutter hub; when described cutter hub is folded in described storage tank, exceeded the part of described handle of a knife by described first protection brace and the accommodating described cutter hub of described second protection brace.In the case; the use length of handle of a knife can be reduced; the length of handle of a knife can be met and facilitate user to carry out the demand held when using jackknife; when cutter hub is folded in storage tank; the part of handle of a knife can be exceeded by the first protection brace and the accommodating cutter hub of the second protection brace, thus be easy to carry.

Further, one end of described each protection brace and described cutter hub pivot joint has the first arc sections.Therefore, movable around described first connecting axle in the process that one end of each protection brace and described cutter hub pivot joint can easily open relative to handle of a knife and to fold at cutter hub.

Further; described each protection brace is provided with a projection away from the part of described second connecting axle; and every side of described handle of a knife is provided with the slideway slided for described projection, and described each protection brace is slidably connected to the inner side of described handle of a knife by described projection and described slideway.In the process that cutter hub to be opened relative to handle of a knife and folded, slided in the slideway of correspondence by the projection of each protection brace, the first protection brace and the second brace can slide relative to handle of a knife in company with the motion of cutter hub.

Further, described slideway is the arc-shaped slideway of the bottom land of two ends described storage tank closer relative to middle part.Adopt the slideway of this form, on the one hand, when cutter hub is in open mode relative to handle of a knife, can prevent protection brace from driving owing to being subject to the pinching grip of user cutter hub to fold towards storage tank; On the other hand, when opening the cutter hub that is folded in storage tank or making the cutter hub opened be folded in storage tank, protection brace easily can be made to slide relative to handle of a knife, contribute to opening and folding operation of cutter hub.

Further, the both sides of described handle of a knife are respectively at the recess being provided with the one end for accommodating each described protection brace and described cutter hub pivot joint near the position of described first connecting axle.When cutter hub is folded in storage tank; one end of each protection brace and cutter hub pivot joint is rotated around the first connecting axle together with cutter hub, and this recess may be used for accommodatingly turning to each protection brace of the first connecting axle near the side of handle of a knife and one end of cutter hub pivot joint from the first connecting axle away from the side of handle of a knife.

Further; described each protection brace exposes from described handle of a knife away from the side of the bottom land of described storage tank, and the thickness of the part exposed from described handle of a knife of described each protection brace is greater than the thickness that described each protection brace is hidden in the part of described handle of a knife.Can make in this way under cutter hub to be in the state opened relative to handle of a knife, protection brace and handle of a knife agree with and form almost planar entirety, thus the experience degree of adding users.

Further, described each protection brace is provided with multiple second arc sections, and it is relative to described first arc sections the side of the bottom land of described storage tank that described multiple second arc sections is placed in described each protection brace.The profile that multiple second arc sections is preferably set to point with user conforms to, with make user hold by protection brace and handle of a knife agree with formed almost planar overall time feel more comfortable.

Further; described each protection brace is provided with multiple groove near the side of the bottom land of described storage tank; each madial wall of described handle of a knife is provided with multiple cylinder; when described cutter hub is in open mode relative to described handle of a knife, each cylinder in described multiple cylinder is placed in a groove of described multiple groove.When cutter hub is in open mode relative to handle of a knife; each protection brace can also be fitted preferably by above-mentioned groove and cylinder and handle of a knife; make it possible to the impulsive force part from cutter hub to be transferred to handle of a knife, thus strengthen the power resistance strength of the tie point between cutter hub and handle of a knife.

Further, described jackknife also comprises and is arranged at described handle of a knife, for limiting the Lock Part that described cutter hub is accidentally opened when being folded in described storage tank.Utilize this Lock Part can prevent cutter hub from unexpectedly opening relative to handle of a knife, add the security of user.

The beneficial effect that the present invention realizes: the jackknife that the embodiment of the present invention provides comprises handle of a knife, first protection brace, second protection brace and cutter hub, handle of a knife is provided with the storage tank for accommodating cutter hub, one end of cutter hub is by the first connecting axle and handle of a knife pivot joint, first protection brace to be partly placed in storage tank and the first protection brace between the side and the inner side of handle of a knife of cutter hub, second protection brace to be partly placed in storage tank and the second protection brace between the opposite side and the inner side of handle of a knife of cutter hub, one end of cutter hub and handle of a knife pivot joint also protects one end of brace and second to protect one end pivot joint of brace by the second connecting axle and first, first protection brace is connected with the inner slide of handle of a knife respectively with the part of the second protection brace away from the second connecting axle.Relative to jackknife of the prior art; the jackknife that the embodiment of the present invention provides also comprises the protection brace that two ends are connected with cutter hub and handle of a knife respectively; when using this jackknife cutting article; impulsive force from cutter hub can be shared by protection brace, thus the power resistance strength of the tie point between cutter hub and handle of a knife can be increased.

Accompanying drawing explanation

Fig. 1 is the jackknife schematic elevational view in the on-state that the embodiment of the present invention provides;

Fig. 2 is the jackknife schematic rear view in the on-state that the embodiment of the present invention provides;

Fig. 3 is the schematic diagram of the protection brace in the jackknife that provides of the embodiment of the present invention;

Fig. 4 is the jackknife schematic elevational view in a folded configuration that the embodiment of the present invention provides.

Wherein, Reference numeral gathers as follows: handle of a knife 110, the first protection brace 120; second protection brace 130, cutter hub 140, storage tank 111; blade 141, point of a knife 142, the first connecting axle 151; second connecting axle 152, first arc sections 121, protruding 122; slideway 112, recess 113, the second arc sections 123; groove 124, cylinder 114.

Detailed description of the invention

In view of the problem that the power resistance strength of the tie point between the cutter hub of jackknife in prior art and handle of a knife is more weak, the present inventor visualizes a kind of jackknife.This jackknife comprises handle of a knife, first protection brace, second protection brace and cutter hub, handle of a knife is provided with the storage tank for accommodating cutter hub, one end of cutter hub is by the first connecting axle and handle of a knife pivot joint, first protection brace to be partly placed in storage tank and the first protection brace between the side and the inner side of handle of a knife of cutter hub, second protection brace to be partly placed in storage tank and the second protection brace between the opposite side and the inner side of handle of a knife of cutter hub, one end of cutter hub and handle of a knife pivot joint also protects one end of brace and second to protect one end pivot joint of brace by the second connecting axle and first, first protection brace is connected with the inner slide of handle of a knife respectively with the part of the second protection brace away from the second connecting axle.Relative to jackknife of the prior art; the jackknife that the embodiment of the present invention provides also comprises the protection brace that two ends are connected with cutter hub and handle of a knife respectively; when using this jackknife cutting article; impulsive force from cutter hub can be shared by protection brace, thus the power resistance strength of the tie point between cutter hub and handle of a knife can be increased.

Also by reference to the accompanying drawings the present invention is described in further detail below by specific embodiment.

Fig. 1 shows the jackknife schematic elevational view in the on-state that the embodiment of the present invention provides, and Fig. 2 is the jackknife schematic rear view in the on-state that the embodiment of the present invention provides.Refer to Fig. 1 and Fig. 2, the jackknife that the embodiment of the present invention provides can comprise handle of a knife 110, first and protect brace 120, second to protect brace 130 and cutter hub 140.

Handle of a knife 110 is provided with the storage tank 111 for accommodating cutter hub 140, one end of cutter hub 140 is by the first connecting axle 151 and handle of a knife 110 pivot joint, and thus cutter hub 140 can be folded in storage tank 111 or relative to handle of a knife 110 by rotating around the first connecting axle 151 and open.When cutter hub 140 is folded in storage tank 111, the blade 141 of cutter hub 140 is towards the bottom land of storage tank 111.First protection brace 120 is partly placed in storage tank 111, and the first protection brace 120 is between the side and the inner side of handle of a knife 110 of cutter hub 140.Second protection brace 130 is partly placed in storage tank 111, and the second protection brace 130 is between the opposite side and the inner side of handle of a knife 110 of cutter hub 140.Cutter hub 140 also protects one end of brace 120 and second to protect one end pivot joint of brace 130 by the second connecting axle 152 and first with one end of handle of a knife 110 pivot joint.It should be noted that to be in the state opened relative to handle of a knife 110 at cutter hub 140 under, the second connecting axle 152 relative to the first connecting axle 151 comparatively away from handle of a knife 110.First protection brace 120 is connected with the inner slide of handle of a knife 110 respectively with the part of the second protection brace 130 away from the second connecting axle 152.It should be noted that; in other embodiments; first protection brace 120 and the second protection brace 130 away from the part of the second connecting axle 152 can also limit with other/guidance mode is connected to handle of a knife 110 respectively; and the first protection brace 120 and the second protection brace 130 can also be connected to the outside of handle of a knife 110 respectively in other shape mode, or the first protection brace 120 and second protects brace 130 all right as a whole.

It should be noted that; in the jackknife that the embodiment of the present invention provides; first protection brace 120 and second protects brace 130 to have identical structure; and the situation being applicable to the first protection brace 120 is equally applicable to the second protection brace 130; therefore be only described in detail for the first protection brace 120 in description, the relevant portion of the second protection brace 130 can referring to the corresponding description to the first protection brace 120.Fig. 3 shows the schematic structure of each protection brace in the jackknife that the embodiment of the present invention provides.

In a kind of detailed description of the invention; the cross section of the first connecting axle 151 can be circular; thus in order to open relative to handle of a knife 110 at cutter hub 140 and rotate around the first connecting axle 151 together with cutter hub 140 in the process folded, the first protection brace 120 can have the first arc sections 121 (see Fig. 3) with one end of cutter hub 140 pivot joint.The radius of the first arc sections 121 is preferably more than the radius of the first connecting axle 151, does not rub when rotating around the first connecting axle 151 to make one end of each protection brace and cutter hub 140 pivot joint with the first connecting axle 151.Similarly, the second protection brace 130 can have with one end of cutter hub 140 pivot joint the first arc sections 121 (see Fig. 3) conformed to the shape of the first connecting axle 151.It should be noted that; in other detailed description of the invention; the position that first protection brace 120 arranges the first arc sections 121 can also have other different shapes as the case may be, as long as guarantee that each protection brace can be opened relative to handle of a knife 110 at cutter hub 140 and rotate around the first connecting axle 151 together with cutter hub 140 in the process folded.

Refer to Fig. 1 and Fig. 3; in a kind of detailed description of the invention; first protection brace 120 can be provided with a projection 122 away from the part of the second connecting axle 152; and handle of a knife 110 can be provided with the slideway 112, first slided for protruding 122 near the side of the first protection brace 120 protects brace 120 can be slidably connected to the inner side of handle of a knife 110 by protruding 122 and slideway 112.Similarly; refer to Fig. 2; second protection brace 130 is also provided with a projection 122 away from the part of the second connecting axle 152, and handle of a knife 110 can be provided with the slideway 112 of projection 122 slip for the second protection brace 130 near the side of the second protection brace 130.It should be noted that illustrate for schematic object in Fig. 1 and Fig. 2 can from the outside of handle of a knife 110 visible protruding 122 and slideway 112, however in other embodiments protruding 122 and slideway 112 also can be invisible from the outside of handle of a knife 110.

Because one end of the first protection brace 120 is by the second connecting axle 152 and cutter hub 140 pivot joint; and the first protection brace 120 is also slidably connected to the inner side of handle of a knife 110 by protruding 122 and slideway 112; therefore, when cutter hub 140 rotates around the first connecting axle 151 to carry out folding and opening operation relative to handle of a knife 110, the first protection brace 120 can be movable relative to handle of a knife 110.Particularly, in the process that cutter hub 140 is opened relative to handle of a knife 110, first protection brace 120 can turn to the side (as shown in Figure 1) of the first connecting axle 151 away from handle of a knife 110 from the first connecting axle 151 near the side of handle of a knife 110 with one end of cutter hub 140 pivot joint, and therefore the first protection brace 120 can stretch out from the one end portion of handle of a knife 110 away from the first connecting axle 151 away from one end (to protect brace 120 to be articulated in one end of cutter hub 140 contrary with first) of the second connecting axle 152; And be folded in the process of storage tank 111 at cutter hub 140; first protection brace 120 can turn to the first connecting axle 151 near the side of handle of a knife 110 from the first connecting axle 151 away from the side of handle of a knife 110; therefore the first protection brace 120 can stretch out (refer to Fig. 4, it illustrates the jackknife schematic elevational view in a folded configuration that the embodiment of the present invention provides) from handle of a knife 110 away from one end of the first connecting axle 151 further away from one end (to protect brace 120 to be articulated in one end of cutter hub 140 contrary with first) of the second connecting axle 152.It should be noted that; the position that each protection brace arranges protruding 122 and the position arranging slideway 112 on handle of a knife 110 can set as the case may be; thus each protection brace can be changed stretch out the length of handle of a knife 110 away from one end of the second connecting axle 152 or each protection brace can be made not stretch out from handle of a knife 110 when cutter hub 140 is in open mode away from one end of the second connecting axle 152, shown in its accompanying drawing being not limited to the embodiment of the present invention.

In a kind of detailed description of the invention, slideway 112 is the arc-shaped slideways of two ends relative to the bottom land of the closer storage tank 111 in middle part, as depicted in figs. 1 and 2.Adopt the reason of this form slideway to be: on the one hand, when cutter hub 140 is in open mode relative to handle of a knife 110, can prevent each protection brace from driving owing to being subject to the pinching grip of user cutter hub 140 to fold towards storage tank 111; On the other hand; when making to be folded to cutter hub 140 in storage tank 111 and opening or make the cutter hub 140 opened be folded in storage tank 111; each protection brace can be easily made to slide relative to handle of a knife 110; thus contribute to opening and folding operation of cutter hub 140; such as, adopt this form slideway to contribute to carrying out one hand to this jackknife throw away and get rid of conjunction.Preferably, the two ends of each slideway can, with the middle part of this slideway in the angle being close to right angle, user can be utilized in this way substantially to hold the strength of handle of a knife 110, and slideway and projection also play certain shock resistance effect.

In a kind of detailed description of the invention; the length of cutter hub 140 can be longer than the length of handle of a knife 110; and the length of point of a knife 142 to the second connecting axle 152 of the length of each protection brace can be more than or equal to (preferably slightly larger than) cutter hub 140; to make when cutter hub 140 is folded in storage tank 111, the part of handle of a knife 110 can be exceeded by the first protection brace 120 and the accommodating cutter hub 140 of the second protection brace 130.Owing to being folded in the process of storage tank 111 at cutter hub 140; one end of first protection brace 120 and cutter hub 140 pivot joint can turn to the first connecting axle 151 near the side of handle of a knife 110 from the first connecting axle 151 away from the side of handle of a knife 110; therefore the first protection brace 120 can stretch out from handle of a knife 110 one end away from the first connecting axle 151 further away from one end (to protect brace 120 to be articulated in one end of cutter hub 140 contrary with first) of the second connecting axle 152, thus can block the part that cutter hub 140 exceeds handle of a knife 110.In the case, this jackknife can use the handle of a knife 110 that length is less, user is facilitated to carry out the demand held when using this jackknife as long as the length of handle of a knife 110 can meet, make it possible to save the material manufacturing handle of a knife 110, and the space in the use procedure of jackknife occupied by handle of a knife 110 can be reduced.It should be noted that the length of the first protection brace 120 and the second protection brace 130 also can be longer than the length of cutter hub 140 or slightly be shorter than the length of cutter hub 140, the specific embodiment of the invention is not as limit.

In a kind of detailed description of the invention; first protection brace 120 can expose (referring to Fig. 1) from handle of a knife 110 away from the side of the bottom land of storage tank 111, and the thickness of the part exposed from handle of a knife 110 of the first protection brace 120 preferably can be greater than the thickness that the first protection brace 120 is hidden in the part of handle of a knife 110.This situation is equally applicable to the second protection brace 130.Can make in this way under cutter hub 140 to be in the state opened relative to handle of a knife 110; each protection brace can agree with handle of a knife 110 and form almost planar entirety; that is; each protection brace also can form a part (holding the part in user's hand when this jackknife uses) for handle of a knife 110, so also can change handle of a knife 110 in use and shape when carrying and/or length.It is to be noted, however, that each protection brace also can be hidden among handle of a knife completely, the specific embodiment of the invention is not as limit.

In a kind of detailed description of the invention, the both sides of handle of a knife 110 can be provided with the recess 113 of the one end for accommodating each protection brace and cutter hub 140 pivot joint respectively in the position near the first connecting axle 151, as depicted in figs. 1 and 2.When cutter hub 140 is folded in storage tank 111; each protection brace can rotate around the first connecting axle 151 with one end of cutter hub 140 pivot joint together with cutter hub 140, and this recess 113 may be used for accommodatingly turning to each protection brace of the first connecting axle 151 near the side of handle of a knife 110 and one end of cutter hub 140 pivot joint from the first connecting axle 151 away from the side of handle of a knife 110.

In a kind of detailed description of the invention; as shown in figures 1 and 3; first protection brace 120 can be provided with multiple second arc sections 123, and it is relative with the first arc sections 121 away from the side of the bottom land of storage tank 111 that wherein said multiple second arc sections 123 is placed in the first protection brace 120.The profile that multiple second arc sections 123 is preferably set to point with user conforms to, and feels more comfortable to make user when holding and agreeing with by each protection brace and handle of a knife 110 the almost planar overall structure formed.Second protection brace 130 can be provided with multiple second arc sections 123 equally.

Further; each protection brace can be provided with multiple groove 124 near the side of the bottom land of storage tank 111; and each madial wall of handle of a knife 110 can be provided with multiple cylinder 114; when cutter hub 140 is in open mode relative to handle of a knife 110; each cylinder 114 in multiple cylinder 114 can be placed in a corresponding groove 124, as depicted in figs. 1 and 2.When cutter hub 140 is in open mode relative to handle of a knife 110; each protection brace can also be fitted with handle of a knife 110 preferably by groove 124 and cylinder 114; make it possible to the impulsive force part from cutter hub 140 to be transferred to handle of a knife 110, thus strengthen the tie point power resistance strength between cutter hub 140 and handle of a knife 110.It should be noted that; each protection brace also can not arrange groove 124 (in the case near the side of the bottom land of storage tank 111; handle of a knife 110 can not arrange cylinder 114) or other suitable shapes can be had, the specific embodiment of the invention is not as limit.

Further, the jackknife that the embodiment of the present invention provides can also comprise and being arranged on handle of a knife 110, for limiting the Lock Part (not shown) that cutter hub 140 is accidentally opened when being folded in storage tank 111.This Lock Part can for having fixture or other suitable Lock Parts of barb.Utilize such Lock Part can prevent cutter hub 140 from unexpectedly opening relative to handle of a knife 110, add the security of user.

It should be noted that; there is provided the handle of a knife of jackknife and cutter hub can have any suitable shape in the embodiment of the present invention; and the shape of each protection brace also specifically can set according to handle of a knife and cutter hub, and it is not limited to the shape shown in this Figure of description.

The jackknife that the embodiment of the present invention provides comprises handle of a knife, first protection brace, second protection brace and cutter hub, handle of a knife is provided with the storage tank for accommodating cutter hub, one end of cutter hub is by the first connecting axle and handle of a knife pivot joint, first protection brace to be partly placed in storage tank and the first protection brace between the side and the inner side of handle of a knife of cutter hub, second protection brace to be partly placed in storage tank and the second protection brace between the opposite side and the inner side of handle of a knife of cutter hub, one end of cutter hub and handle of a knife pivot joint also protects one end of brace and second to protect one end pivot joint of brace by the second connecting axle and first, first protection brace is connected with the inner slide of handle of a knife respectively with the part of the second protection brace away from the second connecting axle.Relative to jackknife of the prior art; the jackknife that the embodiment of the present invention provides also comprises the protection brace that two ends are connected with cutter hub and handle of a knife respectively; when using this jackknife cutting article; impulsive force from cutter hub can be shared by protection brace, thus the power resistance strength of the tie point between cutter hub and handle of a knife can be increased.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.

In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.

In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.

Claims (10)

1. a jackknife, it is characterized in that, comprise handle of a knife, first protection brace, second protection brace and cutter hub, described handle of a knife is provided with the storage tank for accommodating described cutter hub, one end of described cutter hub is by the first connecting axle and described handle of a knife pivot joint, described first protection brace to be partly placed in described storage tank and described first protection brace between the side and the inner side of described handle of a knife of described cutter hub, described second protection brace to be partly placed in described storage tank and described second protection brace between the opposite side and the inner side of described handle of a knife of described cutter hub, one end of described cutter hub and described handle of a knife pivot joint also protects one end of brace and described second to protect one end pivot joint of brace by the second connecting axle and described first, described first protection brace is connected with the inner slide of described handle of a knife respectively with the part of described second protection brace away from described second connecting axle.
2. jackknife according to claim 1; it is characterized in that; the length of described cutter hub is longer than the length of described handle of a knife; and the length of described each protection brace is more than or equal to the length of point of a knife to described second connecting axle of described cutter hub; when described cutter hub is folded in described storage tank, exceeded the part of described handle of a knife by described first protection brace and the accommodating described cutter hub of described second protection brace.
3. jackknife according to claim 1, is characterized in that, one end of described each protection brace and described cutter hub pivot joint has the first arc sections.
4. jackknife according to claim 3; it is characterized in that; described each protection brace is provided with a projection away from the part of described second connecting axle; and every side of described handle of a knife is provided with the slideway slided for described projection, and described each protection brace is slidably connected to the inner side of described handle of a knife by described projection and described slideway.
5. jackknife according to claim 4, is characterized in that, described slideway is the arc-shaped slideway of the bottom land of two ends described storage tank closer relative to middle part.
6. jackknife according to claim 3, is characterized in that, the both sides of described handle of a knife are provided with the recess of the one end for accommodating each described protection brace and described cutter hub pivot joint respectively in the position near described first connecting axle.
7. jackknife according to claim 2; it is characterized in that; described each protection brace exposes from described handle of a knife away from the side of the bottom land of described storage tank, and the thickness of the part exposed from described handle of a knife of described each protection brace is greater than the thickness that described each protection brace is hidden in the part of described handle of a knife.
8. jackknife according to claim 7; it is characterized in that; described each protection brace is provided with multiple second arc sections, and it is relative to described first arc sections the side of the bottom land of described storage tank that described multiple second arc sections is placed in described each protection brace.
9. jackknife according to claim 1; it is characterized in that; described each protection brace is provided with multiple groove near the side of the bottom land of described storage tank; each madial wall of described handle of a knife is provided with multiple cylinder; when described cutter hub is in open mode relative to described handle of a knife, each cylinder in described multiple cylinder is placed in a groove of described multiple groove.
10. jackknife according to claim 1, is characterized in that, described jackknife also comprises and is arranged at described handle of a knife, for limiting the Lock Part that described cutter hub is accidentally opened when being folded in described storage tank.
CN201510593476.5A 2015-09-17 2015-09-17 Folding knife CN105108778A (en)

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US20040139613A1 (en) * 2002-07-30 2004-07-22 Onion Kenneth J. Folding knife with removable blade
DE202005011158U1 (en) * 2005-07-15 2006-03-09 Vörös, Robert Knife with folding blade for operation by one hand has swivel joint and stop for blade and sliding link with actuating button which can lock against end stop in blade open and blade closed position
US20130212886A1 (en) * 2011-11-14 2013-08-22 Grant Woodrow Hawk Lock Optional, Spring Assisted Folding Knife
CN203471796U (en) * 2013-10-08 2014-03-12 黄丹蕾 Pull-lock type folding knife
CN205033241U (en) * 2015-09-17 2016-02-17 王德胜 Folding knife

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Publication number Priority date Publication date Assignee Title
CN2299693Y (en) * 1997-08-28 1998-12-09 大连汉威金属有限公司 Folding knife with ring and sliding piece
US20040139613A1 (en) * 2002-07-30 2004-07-22 Onion Kenneth J. Folding knife with removable blade
DE202005011158U1 (en) * 2005-07-15 2006-03-09 Vörös, Robert Knife with folding blade for operation by one hand has swivel joint and stop for blade and sliding link with actuating button which can lock against end stop in blade open and blade closed position
US20130212886A1 (en) * 2011-11-14 2013-08-22 Grant Woodrow Hawk Lock Optional, Spring Assisted Folding Knife
CN203471796U (en) * 2013-10-08 2014-03-12 黄丹蕾 Pull-lock type folding knife
CN205033241U (en) * 2015-09-17 2016-02-17 王德胜 Folding knife

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