CN1600506A

CN1600506A - Mini folding knife having locking means

Info

Publication number: CN1600506A
Application number: CN03106473.6A
Authority: CN
Inventors: 威廉·J·麦克亨利; 贾森·L·威廉斯; 史蒂文·J·英格拉姆
Original assignee: Mentor Group LLC
Current assignee: Mentor Group LLC
Priority date: 1998-04-14
Filing date: 1998-04-14
Publication date: 2005-03-30
Anticipated expiration: 2018-04-14
Also published as: CN1328021C; CN1292744A; JP3639990B2; AU7117198A; DE69821034D1; JP2002511325A; HK1037344A1; DE69821034T2; CN1106247C

Abstract

A locking device of pocket folding knife consists of a handle, a sheet, a locking pin and a spring. It features that the sheet has on and off position, operation and tang portion for carrying out locking and is connected with handle by pivot, the spring is used to press locking pin for realizing function of locking.

Description

The folding pocket knife that has locking device

The present invention generally speaking reaches a kind of folding instrument, more particularly, relate to a kind of comprise can be locked in one in the open position the sheet tool or the folding instrument of instrument.

Be applicable to that multi-purpose pocket knife and instrument are known in the field.For example, grant the U.S. Patent No. 1,030,058 of Doles, grant the No.1 of Seely, 189,005, grant 2 of Schrade, 188,762, grant the No.3 of Miori, 868,774, grant the No.4 of Peohlmann, 233,737, grant the No.4 of Sawby etc., 240,201, grant the No.4 of Coder, 274,200, grant 4,451 of Collins, 982, grant the No.4 of Pittman, 502,221, grant the No.4 of Rickard, 670,984, grant the No.4 of Elsener, 837,932, grant the No.4 of Walker, 896,424, grant the No.5 of Neely, 060,379, grant the No.5 of Rogers, 425,175 and grant the No.5 of Miller, 461,786th, the representative of prior art.

Disclosed as above-mentioned several patents has the sheet tool is locked in various mechanisms in the open position.For example, award Sawby etc., each discloses a kind of " locking " mechanism the patent of Miller and Seely.This structure need form a breach on the tang of sheet tool, protrude by one in the spine of cutter to engage, blade is locked in the position of opening.The shortcoming of this structure is that undue wear may cause that locking mechanism lost efficacy, thereby makes the cutter use dangerous.

The patent of granting Neely and Collins all discloses another kind of locking mechanism.Disclosed as these patents, a sheet tool has a tang, and it is engaged by a part, stops the sheet tool to rotate from its open position.For example, in the patent of Collins,, the sheet tool is locked in its open position to one of tang bias voltage bolt slidably.The shortcoming of the knife structure of Collins is that bolt is basic parallel with the sheet tool, and this mechanism relies on the spine of hilt hand on intensity.The shortcoming of Neely cutter is identical with the shortcoming of Collins cutter, and when the normal cutting movement of cutter, owing to axially pull the sheet tool from hilt because of carelessness, the sheet tool may be unclamped by latched position.

Therefore, need be than the opening of above-mentioned prior art, or stretch out the stronger a kind of locking mechanism of locking mechanism of fixed-site folded piece tool, and the manufacturing cost economical rationality.

By a kind of folding instrument is provided, the present invention has overcome the above-mentioned shortcoming of prior art, and described folding instrument comprises: a nigger limits an elongated slot therein; With at least one cutter or other sheet tool that are pivotally mounted on handle one end, or other tool piece.Each sheet tool or part are mobilizable between a closed position and open position, and wherein it is contained in the groove of handle in the closed position, and it is stretched out from handle and exposes at open position.Each sheet tool has a working portion that stretches out from handle at open position; With a tang part, it be included in the sheet tool be in the open position in the time locking surface of in the groove of handle, locating.Sheet tool stop pin is in the substantial transverse extension of handle and sheet tool length, and its opposite end is limited in the two opposite sides of hilt hand in the long opening alignment toward each other.Sheet tool stop pin can be between a primary importance and second place, move with respect to handle along long opening, wherein in primary importance, stop pin is engaging sheet tool tang, or the inner face of the lock face of sheet tool and long opening, the sheet tool is locked in its open position, in the second place, pin leaves the lock face part of tang and allows the sheet tool to move from its open position.Sheet tool stop pin bias voltage is to its primary importance, but can be manually moves to its second place from its primary importance.

In one embodiment of the invention, provide a total adult of locking, be used for manually stop pin is moved to the second place from its primary importance.

In one embodiment of the invention, by the spring in the sidewall internal cavity that is contained in handle, to the primary importance bias voltage sheet tool stop pin of sheet tool stop pin.

In one embodiment of the invention, the position of a spine of handle is at the contiguous place of the long opening at the end place of sheet tool stop pin, and the each several part of the outer surface of sheet tool stop pin is being tight against the locking surface on the tang of sheet tool and the respective surfaces of spine.

In one embodiment, the invention provides the device of the locking of selecting in a plurality of tool that will on an end of handle, carry or the part.

To make above-mentioned and other purpose of the present invention, feature and advantage more than you know with reference to the following detailed description of accompanying drawing.

Fig. 1 is a perspective view of implementing a folding of the present invention or pocket cutter, and the sheet tool of illustrated cutter is in the closed position, and it is contained in the handle of cutter;

Fig. 2 is the perspective view of cutter shown in Figure 1, and the operating position that the sheet tool of cutter is being opened is shown;

Fig. 3 is the decomposition diagram of cutter shown in Figure 2;

Fig. 4 is the phantom of a side of the cutter shown in Fig. 1-3;

Fig. 5 is the phantom of the opposite side of the cutter shown in Fig. 1-4;

Fig. 6 is the phantom of same side cutter shown in Figure 4, the sheet tool is shown at open position;

Fig. 6 a is the detail drawing of locking mechanism of the cutter shown in Figure 6 of magni-scale;

Fig. 7 is that the part of the cutter similar to Fig. 6 is cutd open side view, and the sheet tool of cutter moves to its closed position;

Fig. 7 a is the locking mechanism detail drawing of the cutter shown in Figure 7 of magni-scale;

Fig. 8 is the side view of the sheet tool that comprises in the cutter of another preferred embodiment of the present invention;

Fig. 9 is the perspective view that comprises an implement handle, pliers and a sheet tool of the all-purpose instrument of implementing of the present invention tool lock;

Figure 10 is the perspective view of the part of the sheet tool pivot of the instrument shown in Figure 9 that amplifies and locking mechanism;

Figure 11 is that the part of the handle shown in Fig. 9 and 10 and a sheet tool and a locking mechanism part is cutd open side view;

Figure 12 is that the part of the handle shown in Fig. 9,10 and 11 and a sheet tool and a locking mechanism part is cutd open side view, and the sheet tool is in the closed position;

Figure 13 is with several tools shown in Fig. 9,10,11 and 12 and sheet tool locking mechanism, from the side of opening of implement handle shown in Figure 9, or the plane of preceding side-draw;

Figure 14 is the decomposition diagram of the pocket knife of another embodiment of the present invention;

Figure 15 is that the part of cutter shown in Figure 14 is cutd open side view, and its sheet tool locks at open position;

Figure 16 is that the part of the pocket knife shown in Figure 14 of amplification is cutd open side view, and the sheet tool of cutter is being opened the position; With

Figure 17 is the figure similar to Figure 16, and the sheet tool of cutter is from the closed position slightly outwards.

Ask for an interview figure, Fig. 1 and 2 particularly, the pocket cutter 10 of folding comprises implements a sheet tool locking mechanism of the present invention.Pocket cutter 10 comprises a nigger 12 and is installed to a sheet tool 14 of handle at one of opposite end head lamp brush guard pivot.Fig. 1 illustrates the pocket cutter 10 of the sheet tool 14 that has in the closed position, and wherein the sheet tool is contained in the handle 12.The sheet tool 14 of the pocket cutter 10 shown in Fig. 2 is being opened, or the use location.The sheet tool 14 of the pocket cutter 10 of the present invention can be locked in open position securely, prevents that careless tool 3 from moving to its closed position, and it is safer that this uses cutter.

See Fig. 1-3, the handle 12 of pocket cutter 10 comprises several assemblies, comprising: a pair of relative

side wall sections

16 and 18, they are parallel to each other; With spine's section 20, it is the long edge above them between the section of two side.As shown in Figure 3, side wall sections 16 has an outside plate 22 and inwardly and outside plate 22 and a liner 24 leaning on.Similarly, lateral wall section 18 has a liner 28 of an outside plate 26 and inwardly same and outer plate 26.

At handle assembled 12 o'clock, spine's section 20 and was extended along the top edge of side wall sections between

side wall sections

16 and 18 fens other liners 24 and 28.Outer outstanding pawl 30 at the Duan Shangshe of spine is contained in the respective aperture 32 that forms in the lining, side wall sections is in alignment with each other and aligns with the spine section.Suitable securing member with screw 34 and 35 etc. is fixed

side wall sections

16,18 and spine's section 20 together.Preferably,

side wall sections

16 and 18

outside plate

22 and 26 separately is by the hard synthetic plastic of strengthening, and make as Micarta (Westinghouse Electric Corp's manufacturing), but other suitable material is also available as metal, other plastics, timber etc.

Side wall sections

16 and 18

liner

24 and 28 and spine's section 20 preferably steel or titanium system because these assemblies of handle must be strong be enough to bear the power that when the sheet tool is locked in open position, may be applied with.

Side wall sections

16,18 and 28 and spine's section 20 limit holding tank 36 (see figure 4)s of a sheet tool, when making sheet tool 14 move in its closed position, hold it.Still see Fig. 1-3, sheet tool 14 comprises that a farm labourer makes part 38, and it has the blunt back of the body 40, time sharp cutting edge 42 above and the sheet tool is pivotally mounted to the tang 44 of handle 12.Setting is such, and in the open position of sheet tool 14 at it time, the working portion of sheet tool 38 stretches out from handle, and when the sheet tool was opening or closing in the position, tang part 44 was positioned at groove 36.That is, tang 44 is always between the

liner

24 and 28 of handle 12.

More specifically, operate portions 38 is to constitute in known manner, is pivotally mounted to handle by tang portion 44, and consequently cutting edge 42 is contained in the handle 12 down.Tang 44 forms as one with handle piece part 38, and has a semicircle periphery 46, is used for sheet tool 14 is fixed to handle 12 and form a circular open 48 in tang portion.An end of the periphery 46 of tang portion 44 can be incorporated into one in overhanging first step 50.Another end of periphery 46 can be incorporated in the second step of inwardly stretching 52.First and second steps 50 are vertical with the direction of periphery 46 substantially in their junctions separately with 52; But it should be noted that in Fig. 4 second step 52 is can be incorporated into than first step 50 big radius of curvature in the periphery 46.

As shown in FIG. 3, between

liner

22 and 28,,, sheet tool 14 is installed to handle 12 with each a pair of annular gasket 56 of one on every side by the annular shaft 54 of hardened steel.In the opening 48 of axle 54 compression fit in the tang 44 of sheet tool 14, rotatable and closely cooperate by the circular open that in

liner

22 and 28, limits 57, thus a pivot of the sheet tool of axis

limit opposing sidewalls

16 and 18 horizontal expansions.As shown in Figure 3, annular gasket 56 is installed on two respective end of axle 54.Axle 54 has the threaded axis hole 58 that machined is passed, and is used to assemble screw fastener 34, and screw fastener 34 is outside

plate

22 and 26 and keep the assembled state of cutter 10 fixedly.

See Fig. 3-5, have the slide lock assembly 60 of sheet tool in the open position locking at this.Slide lock assembly 60 comprises a planar slide body spare 62, and it extends along the side wall sections 16 of the handle 12 of almost parallel and 18 plane.Install one to overhanging door bolt motion arm or claim handle 64 on body spare 62, it is as a handle along the axis slide mass spare 62 of shown in the arrow 65 of Fig. 3 and length almost parallel handle 12.Body spare 62 is between the liner 24 of outside plate 22 and side wall sections 16, in the cavity (not shown) on the interior side of outside plate 22.Body spare 62 has therein fork or the groove 66 that forms, and it holds a guide 68 (as a machine screw) that is suitable for being installed to liner 24, the moving of guiding slide mass spare 62.Handle 64 passes outwards through the long opening 70 by plate 22 formation of side wall sections 16, so that the user of cutter 10 can touch it.

Slide lock assembly 60 also comprises a slice of cylinder tool stop pin 72, and its end is installed to (as welding) body spare 62.Pin 72 has a cylindrical outer surface 73 and at a central shaft of the substantial transverse extension of body spare and handle 12.During pocket knife 10, pin 72 passes the long opening 74 of the aligning that forms respectively in the

liner

24 and 28 of

side wall sections

16 and 18 in assembling, sells in the big cavity 76 in the inner surface of plate 26 that 72 free end extends to lateral wall piece 18.Shown in Fig. 7 a, the inside surface 77 of spine 20 is preferably aimed at, or near aiming at long opening 74.As shown in Figure 4, the lock 72 of slide lock assembly 60 is located at tang part 44 places of adjacent sheet tool 14.

Now referring to Fig. 6 and 7, shown in figure arrow 65, the direction that slide lock assembly 60 parallels in the length with handle 12, removable between the primary importance shown in Figure 6 and the second place shown in Figure 7, wherein in primary importance, the tang portion 44 of the cylindrical outer surface 73 joint fastener tools 14 of the sheet tool stop pin 72 of slide lock assembly, the sheet tool is locked in open position, in the second place, pin 72 leaves pin shank 44, allows the sheet tool to move to the closed position from its open position.More specifically, when its primary importance was locked in sheet tool 14 in the open position, pin 72 was arranged in the dimple that tang portion 44, first step 50 and spine's section 20 limit at slide lock assembly 60.Can see in Fig. 7 a, the part of the neighboring 46 that flat substantially locking surface 89 is tang 44 intersects with semi-circular portion.Preferably by the transition portion 88 smooth semicircular parts that connect into.Stretch in the circle that locking surface 89 limits along the half-round of neighboring 46 tangential.Angle 75 shown in Fig. 6 a is limited to the locking surface 89 of tang 44 and limits between the upper inner surface of slotted hole 74.Therefore angle 75 is between the 7-14 degree, and 10 degree preferably are enough little, so that sell 72 not by any cam effect of the locking list face 89 of tang 44, with the power of the power that is enough to overcome spring 78, vertically pushes away its primary importance.Being arranged so that like this when the open position moving sheet tool 14 of trying hard to from the sheet tool, sold the locking surface 89 of neighboring 46 of the tang portion 44 of 72 joint fastener tools, and hindered the pivot motion of tang portion, thereby stop the sheet tool to move around the pivots that axle 54 limits.

In addition, it should be noted that, the pin 72 of slide lock assembly 60 has " break-in ", rather than the tendency of " wearing and tearing ", because sheet tool 14 to move frequent more of its open position and by pin at this locking position, pin more can be in the neighboring 46 of tang portion 44, limit between the inner surface 77 of surperficial and (depending on aligning) spine 20 of the long opening 74 in the

liner

22 and 28 and become wedge shape.

Spring 78 is set, to the pin 72 of its primary importance bias slide lock assembly 60.As shown in Figure 5, an end 80 of spring 78 is bonded on the pawl 82 (as a machine screw) on the liner 28 of side wall sections 18.The free end of the other end 84 double pointed nails 72 of spring 78.More specifically, in pin 72, form a circular trough 86, wherein hold the end 84 of spring 78, and guarantee that spring keeps and the engaging of pin 72 near free end.Preferably be surely, spring 78 is elastomeric material manufacturings, and its intensity is enough to slide lock assembly 60 is biased into its primary importance, and it is flexible, be enough to make that from the direction of leaving the sheet tool 14 that stretches out lock assembly 60 is easy to move to its second place on handle 64 during the application of force.

It should be noted that the neighboring of tang portion 44 46 limits a cam, between the opening and closing position of sheet tool 14 at it when mobile, pin 72 can be taken and stride on it.And, see Fig. 4, in the closed position of sheet tool 14 at it time, pin 72 is between the neighboring 46 and second step 52 of tang portion 44, and when sheet tool 14 moves away its closed position, second step moves the slide lock assembly 60 that comprises pin 72 and arrives its second place, and sheet tool 14 can be opened.Should see that also the tang portion 44 of sheet tool 14 can be such structure, make the sheet tool be locked in its closed position, and only when manually making slide lock assembly 60 move to its second place, can move.

Another key character of the tang portion 44 of sheet tool 14 is that when opening or closing the sheet tool 14 of cutter 10, qualification pin 72 can play one " booster action " in the shape of the neighboring 46 of the cam of last slip.Specifically, shown in Figure 4 and 5, setting is such, and when the sheet tool 14 of cutter 10 was closed, pin 72 46 slided along the neighboring, walks around bight on neighboring and second step 52 intersection points up to it.Behind this intersection point of walking around with second step, pin 72 actual helps are closed sheet tool 14, because spring 78 is to step 52 biased pin 72, therefore to closed position push jack tool 14.

Now referring to Fig. 6,6a, 7 and 7a, when opening sheet tool 14, the curvature changeover portion 88 of neighboring 46 also makes it possible to utilize, the pin 72 of spring bias voltage acts on the tang portion 44, to help to open the sheet tool, because the sheet tool locking list face 89 of the neighboring 46 of tang 44 extends from the angle that the curved portions of neighboring is inside.

Fig. 8 illustrates the sheet tool 90 of another embodiment of the present invention.Sheet tool 90 is that with sheet tool 14 similarities it comprises: a sheet tool portion 92 with a top edge 94 and a lower limb 96; With a tang 98, it is basic similar to tang 44.Yet tang 98 also comprises an inclined-plane 100.The effect on inclined-plane 100 is to make locking assembly 60 can help sheet tool 90 to open from its closed position.See Fig. 4, in handle 64 (in direction of arrow 65) when the second place of lock assembly 60 moves, pin 72 is pushed inclined-plane 100, partly opens because the cam effect causes cutter.This is desirable, opens cutter with activation with a hand.

See Fig. 9-13, the multi-disc tool instrument 110 of another embodiment of the present invention comprises the handle 112 of the groove that roughly takes the shape of the letter U, it is preferably made by the sheet metal of bending, has on an end 124 of handle 112 a plurality of tools of installing side by side on sheet tool pivot 122 114,116 and 118.Can select each sheet tool 114,116 and 118 between open position that stretches out and closed position, to move separately, the open position of the screw blade tool 114 of open position shown in Fig. 9,10 and 11, the closed position of the screw blade tool 114 of closed position shown in Fig. 9,10 and 11.

Handle 112 comprises the back 126 of a horizontal expansion with an outward flange 144 and a pair ofly extends parallel to each other and perpendicular to the

side wall portion

128 and 130 at back 126, therefore limit a sipes 132.Sheet tool pivot 122 is installed securely, and is not removable with respect to

sidewall

128 and 130, adorns or is welded in the hole 136 that limits in the corresponding sidewall as its each opposite end 134 riveting.Each sheet tool 114,116 and 118 comprises: a working portion 138, and the working portion of screw blade tool 114 as shown in Figure 9, it reaches outside the handle 112; With a tang portion 140.Each sheet tool 114,116 and 118 tang comprise a corresponding hole, and it closely cooperates around sheet tool pivot 122, but rotatable.Each tang 140 also comprises a bearing step 142, at corresponding sheet tool at open position, when setting up the sheet tool tram of using, it be tight against handle 112 end 124 the back outward flange 144 and support by it.

In above-mentioned cutter 10, a pair of similar long opening 150 is aligned with each other, and passes the

sidewall

128 and 130 of handle 112.Long opening 150 is partly limited by the plane surface 151 near the back of the body 126 of handle 112.Sheet tool stop pin 152 with longitudinal axis 153 passes the horizontal expansion of two long openings 150 at handle 112, and its opposite end is near the outside of two sidewalls 128 and 130.Each corresponding fixture 154 and 156, as manufactured head or the little disc cap that connects with pin 152 screw threads, be located at every end of sheet tool stop pin 152, and the people with instrument 110 can clamp two fixtures as the button that unclamps easily, so that shown in arrow 158, dried relatively handle 112 and the long opening 150 by

sidewall

128 and 130 vertically move sheet tool stop pin 152.Sheet tool stop pin 152 comprises parallel and outer surface 160 its axis 153.In order to simplify, to comprise that the central part or the main body of the sheet tool stop pin 152 of outer surface 160 is columniform, but should be understood that other shape also is fine so long as sheet tool stop pin 152 closely cooperates and can slide in long opening 150.

Each sheet tool 114,116 and 118 tang 140 comprise a locking surface 162, and when corresponding sheet tool was in its open position, its direction was with respect to the 151 one-tenth little angles 164 of inner surface that limit the long opening 150 of a part.In the locking mechanism of pocket knife 10, angle 164 should be the 7-14 degree, is preferably 10 degree.Locking surface 162 is flat substantially, and merge in the convex arc shaped peripheral edge surface 166 of blistering wheel effect, sheet tools such as screwdriver it open position (Fig. 9) and closed position (Figure 12) when mobile, the outer surface 160 of sheet tool stop pin 152 is along this cam face 166 slidably.Sheet tool stop pin 152 primary importances shown in Fig. 9 and 10 at it, wherein its outer surface 160 engages, or very close to the locking surface 162 of tang 140, and near the locking surface 162 that on tang 140, limits, and sheet tool stop pin is by inner surface 151 supports of the long opening 150 that passes through

sidewall

128 and 130.

On the side of the tang 140 opposite with locking surface 162 is a locating surface 170 of closing the sheet tool, and when sheet tool 114 was closed, it was engaged by the outer surface 160 of sheet tool stop pin 152 usually.As the problem of design alternative or manufacturing tolerance, outer surface 160 and open the sheet tool or close the locking surface 162 of sheet tool or locating surface 170 between have very little gap, allow some moving in a small amount.Each sheet tool 114,116 and 118 also comprises, and is relative with retainer 142, is positioned at the step 171 on the tang 140, in order to the inner surface of the back of the body 126 that is tight against handle, is based upon the correct closed position of the sheet tool in the groove 132 that limits between

sidewall

128 and 130.

Mounting spring 172 on every side of handle to its primary importance push jack tool stop pin 152, but is opening and closing the sheet tool 114,116 that moves a selection between the position and at 118 o'clock in hope, allows the user withdrawal of sheet tool stop pin by instrument.Each spring 172 is U-shaped substantially, and a ring 174 is arranged on its every end.Each spring 172 is by passing the securing member 176 of respective rings 174 to sidewall, as screw or rivet, be installed to the

respective side walls

128 or 130 of handle, the ring 174 of while on the end opposite of each spring 172, fixture 154 or 156 and the respective side walls of handle 112 between, near the sheet tool stop pin 152 that is centered around the respective end extends.

On the end opposite 178 of handle 112, with the identical mounting means of sheet tool 114,116 and 118, the tang or the handlebar posts 180 of a pair of pincers is installed on the handle 112.The profile phase of handlebar posts or tang 180 and tang 140 therefore as shown in Figure 9, in order to use this pincers, can similarly be locked in stretching out of it or open position with respect to handle 112 together.The second in command's 112 (not shown) similarly are installed on tang of another pincers jaw, make each handle folding toward each other, and sealing jaw, or for using pincers is extended, and are remained on by locking mechanism and respectively to clamp the jaw open position.

Shown in Figure 14-17 one pocket knife 182, be an alternative embodiment of the invention.It comprises a nigger 184.Handle 184 comprises a pair of liner 186 that steel preferably or Titanium are made, and they are similar each other, and each has a lateral surface 188.The spine 190 that can be made by metal or suitable plastic sets up an interval and limits a groove 192 between two liners 186 between them, hold a sheet tool 194 therein.Sheet tool 194 is rotatably pivotally connected with an end 195 of handle 184 by a pivot 196, pivot 196 preferably has a tubular bolt of a flat side, it is assemblied in the mating holes 197 that limits in each liner 186, and the pivot hole 199 that is passed in the sheet tool 194 is rotatable.Sheet tool 194 comprises an operate portions 198, and it has a blunt back of the body 200 and a sharp keen sword 202.Sheet tool 194 also has a bearing step 206 that connects the place in a tang 204 and the back of the body 200 and the tang 204.

The horizontal expansion of latch 208 between liner, and by the tight fit in the hole in two liners 186 on the same side 195 of handle, interconnect with two liners securely, and sheet tool 194 is when in use being opened into the position of stretching, extension, bearing step 206 is tight against latch 208.

Tang 204 comprises a generally flat horizontal locking surface 210, and it is positioned at roughly the position identical with the locking surface 89 of the tang 44 of above-mentioned cutter 10.Tang 204 also comprises an arc-shaped circumference edge 212, it can play with above-mentioned with regard to tang 44 described identical cam effects, and on side, a step 214 in pointing in abutting connection with arc-shaped circumference edge 212 and by its is arranged near the operate portions 198 of cutting edge 202.

The a pair of long opening 216 corresponding with the long opening 74 of cutter 10 is limited in two liners 186, and toward each other.Therefore a stop pin 216 passes two slotted holes 216, with respect to the horizontal expansion of nigger 184.Stop pin 218 respectively has a fixture that firmly tightens 220 on its each end, form as the cardinal principle cylinder part with the stop pin 218 with outer surface 221, or cooperate by the main body of suitable screw thread with stop pin 218.

Each fixture 220 has a corresponding basal surface 222, and it is towards interior, towards the lateral surface 188 of a corresponding liner 186, each basal surface 222 preferably with the interior distance of lateral surface 188 spaced apart 0.003-0.008 inch scopes.Fixture 220 radially outward stretches 0.06 inch distance 223 around body, for example, so that keep stop pin 218 to be basically perpendicular to the lateral surface 188 of two liners 186.The shape of fixture preferably comprises, is easy to mother by the user and refers to the clamping surface 224 that engages with forefinger.

Each fixture 220 respectively comprises a cannelure 226.A pair of spring 228 and 229 is mutually symmetrical, and has a roughly horseshoe-shaped shape, and each has laterally inwardly end 230 or 231 and little end ring portions 232 of direction.Each lateral ends 230 and 231 is assembled in the spring mounting hole 234 in the corresponding liner, and simultaneously, end ring 232 is around fixture 230 assemblings, and is installed in the groove 226.When putting in place, spring curves inwardly, so that the locking surface 210 of their relative tang 204, to the end of handle 184, therefore to the first of stop pin 218, or latched position, push away stop pin 218, its mode and above-mentioned spring 172 are with respect to the locking surface 166 of tang 140, and to the first of sheet tool stop pin 152, or the mode of latched position push jack tool stop pin 152 is identical.

Can be a pair of outside plate 236 and 238 of the ornament materials manufacturing of metal or timber or plastics,, lean on ground mutually, closely fix on the throne with the lateral surface of two liners 186 by the securing members such as screw 240 and 242 on handle 184 rear ends.Outside plate 236 and 238 comprises also by what 243 of pivot 196 engaged immerses oneself in step 239, two statures 243 keep outside plate 236 and 238 at first end, 195 places of handle with respect to liner 186 is closely fixing, and also regulate and to form enough tension force, side surface with respect to tang 204 compresses liner 186, and making can be not loose excessively in the groove 192 of sheet tool 194 between liner 186.

Outside plate 236 and 238 is mutually symmetrical, and all limits corresponding separately spring cavity 244, and they also are mutually symmetrical.Spring 228 was relative to the bending of liner 186 and the gap of moving when spring cavity 244 was provided at stop pin 218 and moves.

Limit adjusting opening 246 by each outside plate 236 and 238, surround fixture 220, so fixture is immersed oneself in opening 246.Regulate that opening 246 is big must to be enough to be provided at the possible moving range of stop pin in the long opening 216 218, so that by clamping surface 224 is referred to engage with forefinger with user's mother, the power that stop pin 218 can be revolted spring 228 moves, make stop pin 218 leave its primary importance, and allow sheet tool 194 open positions to move to the closed position from it.

As shown in figure 15, in the open position of sheet tool 194 at it, when the bearing step is tight against latch 208, between the inner surface 249 of locking surface 210 and slotted hole 216, an angle 248 is arranged, preferably about 10 degree in this angle, wherein when the outer surface 221 of stop pin 218 leaned against on the locking surface 210, stop pin 218 was tight against the inner surface 249 of slotted hole 216.Therefore, stop pin 218 is pushed in the narrow wedge shape space by spring 228, and push jack tool 194 is pushed bearing step 206 near latch 208 to around pivot 196 rotations.Angle 248 is enough little, so that, with respect to the pressure on the back of the body 200 of the sheet tool 194 in open position, stop pin 218 can not be moved away the engagement relationship that between locking surface 210 and inner surface 249, produces owing to action of cam, so stop pin 218 is fixed on sheet tool 194 in the open position.

Can see in Figure 17, when sheet tool 194 was in the closed position, spring 228 pushed away stop pin 218 and is tight against step 214.When sheet tool 194 moved out the complete closed position from it slightly, the step 214 of sheet tool 194 was pressed on the outer surface 221 of stop pin 218, and it is moved away its primary importance.At the sheet tool when the equidirectional shown in the arrow 250 is moved further, stop pin 218 moves to the arc-shaped circumference edge 212 with tang 204, or in the contact of cam face, this proceeds to the fully open position of sheet tool 194 near it, this moment, spring 228 pushed away stop pin 218 on locking surface 210, sheet tool 194 was locked in its open position.

The term of Shi Yonging is with explaining in the above description, rather than limits, and in the use of these terms, be not intended to get rid of with shown in and the described feature that is equal to or its Partial Feature, should be understood that scope of the present invention only is defined by the claims.

Claims

1. pocket knife comprises:

A handle, it has a flat basically the first side wall, comprises one first liner and one first outside plate, and first opening that extends of described first liner of process and first outside plate, and described the first side wall has first chamber that is formed at wherein;

A sheet tool is pivotally mounted on the described handle and can moves between an open position and a closed position;

A locking piece extends through described first opening along the direction of horizontal described the first side wall in described the first side wall; With

One first spring is in described first chamber, and the part that described spring has a U-shaped and first end related with described locking piece and anchor second end on described sidewall.

2. pocket knife according to claim 1 is characterized in that, comprises second sidewall with one second opening, and described second parallel sidewalls is in described the first side wall and form a groove betwixt.

3. pocket knife according to claim 2 is characterized in that, described second sidewall comprises second chamber with one second spring.

4. pocket knife according to claim 3 is characterized in that, described locking piece is along extending through described second opening transverse to the direction of described second sidewall.

5. pocket knife according to claim 1 is characterized in that, described locking piece can be movable in a plane that is parallel to the first side wall.

6. pocket knife according to claim 1 is characterized in that, described spring comprises a S shape part.

7. pocket knife according to claim 1 is characterized in that, described first spring can be movable in a plane that is parallel to the first side wall.

8. pocket knife according to claim 1 is characterized in that, described has tang part and described locking piece has a curved exterior surface that engages with the tang portion branch of sheet tool.

9. pocket knife according to claim 8 is characterized in that, described tang portion divides formation a cam, and described curved exterior surface straddles on described cam.

10. pocket knife according to claim 1 is characterized in that, described locking piece extends through described first chamber.

11. pocket knife according to claim 1 is characterized in that, the part in described first chamber and described first opening extend jointly.

12. pocket knife according to claim 1 is characterized in that, described first spring with the common described first chamber part of extending of first opening on engaging locking piece.

13. a cutter has: a long main body; A sheet tool and an improved locking mechanism, wherein main body comprises two opposite side walls, thereby fix with isolated arrangement and therebetween to form a groove, described slot part ground is the boundary with the two side, the sheet tool is pivotally mounted to main body also can be movable between the primary importance and the second place, is at least partially housed in the body groove at described tool of primary importance, and goes out so that use from the body groove partial rotation in the second place, and locking mechanism can remain on the second place to the sheet tool, it is characterized in that:

(a) locking mechanism has a lateral member of striding the two side, so that lateral member is long opening in the sidewall athwart, make the sheet tool in the second place and when being forced to a described position, described lateral member is wedged between sidewall and the sheet tool, thereby the prevention work package moves to primary importance.

14. cutter according to claim 13, it is characterized in that, each sidewall comprises a liner and an outside plate, long opening extends through the described liner and the outside plate of each sidewall, and each sidewall has a dimple that is formed at wherein, a spring is arranged in each dimple, and each spring has first end that is associated with described lateral member and anchor and second end on sidewall.

15. a pocket knife comprises:

A handle, has first and second opposite side walls, each sidewall is positioned at outside outside plate by a liner and one along each liner and limits, and each sidewall limits a long opening, described sidewall is fixed with isolated arrangement, thereby therebetween limit an elongated slot, and each described outside plate limits the chamber of a corresponding described long opening of adjacency;

A sheet tool, have a tang end, described tang portion is pivotally mounted to an end of handle, and described tool can move between a closed position and an open position, be contained at least in part in the elongated slot at closed position sheet tool, open position then the sheet tool from handle, stretch out;

A sheet tool locking piece, have through end opposite that described groove extends and can be movable between a primary importance and second place, contact described tang end so that described tool is locked in described open position at the described locking piece of primary importance, can the described closed position of shift-in at described tool of the second place; With

A spring, in each chamber and between outside plate and corresponding liner, each spring has first end related with described part locking piece and one and the second related end of described sidewall.

16. the locking device of a jackknife comprises:

A handle that contains first and second sidewall, each sidewall is positioned at outside outside plate by a liner and one along each liner and limits, and each sidewall contains an opening through described liner and outside plate extension, thereby described sidewall is fixed with isolated arrangement and is therebetween limited an elongated slot, and each described outside plate has a described liner of adjacency and is formed at wherein chamber;

A sheet tool is pivotally connected on the described handle, and described tool can be movable between an open position and closed position;

A locking piece has the end opposite that the described opening in sidewall extends;

A spring is defined in each chamber, and each spring has first end that engages with described locking piece and anchor and second end on described sidewall.

17. locking device according to claim 16 is characterized in that, each spring limits the part of a U-shaped.

18. pocket knife according to claim 16 is characterized in that, each spring limits the part of a S shape.

19. the locking device of a jackknife comprises:

A handle, has first and second sidewall, each sidewall is limited by a liner and an outside plate, and each sidewall contains an opening through described liner and outside plate extension, thereby described sidewall is fixed with isolated arrangement and is therebetween limited a groove, and each described side plate has a chamber that is formed at wherein;

A sheet tool is pivotally mounted on the handle, and can be movable between an open position and closed position;

A locking piece, has the opposite end that exposes through described groove extension, described locking piece can be movable between a primary importance and second place, at the described locking piece of primary importance described tool is locked in open position, allows the sheet tool to move described closed position at the described locking piece of the second place;

A wire spring is arranged in each chamber, and each wire spring has one and connects described locking piece locking piece is forced into first end of primary importance.

20. locking device according to claim 19 is characterized in that, move to the closed position to the sheet tool, the power that locking piece must resist wire spring moves to the second place.

21. locking device according to claim 20, each spring limits the part of a U-shaped.

22. locking device according to claim 21 is characterized in that, an end of each U-shaped spring is connected on the locking piece, and the opposite end of each U-shaped spring is connected on the liner.

23. locking device according to claim 19 is characterized in that, described wire spring has a stiff end and a movable end, described spring in a plane that is parallel to described sidewall and described movable end movable in described plane.

24. an instrument has: a long main body; A work package and an improved locking mechanism, wherein main body comprises two opposite side walls and a spine that is connected, thereby form a groove, it is the limit with two side and spine partly, and work package is scratched axle and is installed to main body, and can move from the primary importance and the second place, it is at least partially housed in the body groove in primary importance, and it goes out so that use from the body groove partial rotation in the second place, and locking mechanism can keep work package in the second place, it is characterized in that, also comprise:

(a) locking mechanism has in the horizontal expansion of main body and strides a lateral member of two side, so that lateral member is slided in the long dimple in sidewall, make and be used on the work package in the second place and masterpiece in work package, so that when primary importance pushes away work package, lateral member is wedged between two side dimple and work package, thereby stops work package to move to primary importance.

25. instrument according to claim 24 is characterized in that, each sidewall comprises an outside plate and a liner, and dimple is an opening in the liner.

26. instrument according to claim 24, it is characterized in that, dimple is microscler, have a bottom and a top, and the top is in the following outside, the inner surface agent-oriention groove of spine also aligns with the top, thus a power with work package when the second place is pushed primary importance to, locking mechanism is wedged between two dimple tops, spine's inner surface and work package.

27. instrument according to claim 24, it is characterized in that, locking mechanism comprises a slide mass spare, it partly is contained in the part of dimple, and slide mass spare slides along dimple, so that locking mechanism can move to a retracted position from a latched position, is locked in the second place in the latched position work package, can move to primary importance from the second place in the retracted position work package.

28. instrument according to claim 27 is characterized in that, also comprises a bias piece that locking mechanism is pressed to latched position.

29. instrument according to claim 24 is characterized in that, lateral member is a pin that reaches in the dimple of each sidewall.

30. instrument according to claim 24, it is characterized in that, lateral member comprises an integrally-built work package junction surface and a side walls splices, and one try hard to recommend work package from the second place when primary importance moves, work package is pressed on the work package junction surface and side walls splices is pressed on the dimple of two side, thereby stops work package to move to primary importance.

31. instrument according to claim 24, it is characterized in that, lateral member comprises an integrally-built work package junction surface and a side walls splices, and wherein two dimples have a bottom and a top that is positioned at the following outside, endeavouring from the second place when primary importance pushes away work package, locking mechanism is wedged between the top of two dimples and work package.