CN2863387Y

CN2863387Y - Dual-spring back-locking portable folding knife

Info

Publication number: CN2863387Y
Application number: CN 200620002100
Authority: CN
Inventors: 梁晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-10
Filing date: 2006-02-10
Publication date: 2007-01-31
Anticipated expiration: 2016-02-10

Abstract

The utility model discloses a portable dual spring back locking folding knife, comprising a left and a right handle clipping pieces, a pressing back spring, a pad, and a cutter body, which is characterized by providing a spring groove between the left and right handle clipping pieces to clip or sustain the spring. A pin is arranged on the center of the back spring to adjust up and down, and a block groove or pull out block groove is provided on the front-end to clip or unclip the blade so to use or fold the blade. The utility model has the advantages of easy unfolding and folding, convenient carrying, safety, and convenience. The utility model is an ideal back locking folding knife.

Description

Dual spring back of the body lock portable folding cutter

Technical field

The utility model relates to a kind of dual spring back of the body lock portable folding cutter with safety locking structure.

Background technology

Existing in the market back of the body locking-type jackknife as shown in Figure 1, it mainly is to be provided with a blade 10 at handle of a knife 30 front ends, is provided with a draw-in groove 104 above the pivot hole 108 of this blade 10.Establish a microscler briquetting 20 (we are referred to as to carry on the back spring) again in handle of a knife 30 spine positions, form a hook portion 201 in back of the body spring 20 front ends, when blade 10 was shown in an open position, the draw-in groove 104 of blade 10 just in time blocked in the hook portion 201 of back of the body spring 20 front ends, forms lock-out state for use.No matter the blade 10 of jackknife is to be in to open (shown in Figure 1) and still close (shown in Figure 2) position, and back of the body spring 20 is subjected to end spring 40 hook portions 201 all the time and applies pressure to blade 10, in the course of the work can unexpected release to guarantee jackknife.Carrying on the back spring 20 rear ends again is a press section 203, when exerting pressure in this position, other end hook portion 201 has been lifted up, and leaves the draw-in groove 104 of blade 10, and the blade 10 that is in released state this moment can be around pivoting to closed position (shown in Figure 2).Can recognize the structural principle of existing back of the body locking-type jackknife on the market thus, though do not have remarkable shortcoming on this structure lock function, this kind structure regular meeting makes troubles for the designer and the producer.As shown in Figure 2 when jackknife is in the closed position, the cutting edge 101 of blade 10 and the distance of end spring 40 cutting edge 101 of damaging too closely easily, and positions are not enough in the point of a knife 102 income handle of a knife intermediate plates 30, the thing of point of a knife regular meeting scratch finger or clothing and so on.The designer and the producer are for fear of above-mentioned drawback before the present invention, usual way is the size that strengthens the size of handle of a knife and reduce blade, so there is the situation of mistake ratio (being that the little big handle of a knife of blade is too big) mostly in the back of the body locking-type jackknife of seeing on the market at present, the method for this sacrifice outward appearance can cause producer's cost's the increase and the minimizing of sales volume.Principle of the present invention is structurally to remove end spring 40 and utilize the handle of a knife intermediate plate to use as spring, and the present invention solves above-mentioned drawback when saving cost, and further perfect spring causes the problem of elastic force deficiency because of long-term use.

Below the cardinal principle of narration and technical background identical, the spring leaf 301 that the spring of end bone 40 is become the handle of a knife intermediate plate gets final product, and is noted that the handle of a knife intermediate plate need select the stainless steel material of good toughness for use.Pin hole 302 should greater than pin hole 202 and herein pin can not rivet tightly.In order to make spring more sufficient, assembling front spring sheet 301 should exceed handle of a knife intermediate plate end face (as shown in Figure 4).No matter be single intermediate plate (only using the spring leaf of a slice cutter holder sheet) or many intermediate plates, these or other modification of being made in circuit elements design and arrangement does not depart from the scope that the appended claim of the present invention is described.

Summary of the invention

Technical solution of the present utility model is such.The purpose of this utility model is to provide two sides, a kind of left and right sides handle of a knife as intermediate plate clamping back of the body spring briquetting and blade, and when blade was shown in an open position, the draw-in groove of blade just in time blocked in the hook portion of back of the body spring briquetting front end, forms lock-out state for use.Has spring groove in the middle of the left and right sides handle of a knife intermediate plate, the intermediate plate end face has slot to make way, and the press section of down pushing back of the body spring briquetting in the slot to make way position can make the front end of back of the body spring lift up and break away from draw-in groove, and blade can rotate to collapse state at this moment.This structure has resilient beam, compact conformation, folds and opens conveniently, and characteristics such as be easy to carry.Comprise left and right sides handle of a knife intermediate plate, back of the body spring, blade, pad.Back of the body spring and blade are arranged between the handle of a knife intermediate plate of the left and right sides, in the middle of left and right sides handle of a knife intermediate plate and the back of the body spring fulcrum pin is arranged, spring groove is arranged in the middle of the handle of a knife intermediate plate of the left and right sides, back of the body spring briquetting front end has hook portion, and blade afterbody end face has draw-in groove, and the blade tail end has rotation top pressure spring arc surface.Back of the body spring hook portion is corresponding to the draw-in groove position of blade.Two sides, left and right sides handle of a knife intermediate plate can have the single intermediate plate of a slice, also can be double grip-pieces, many intermediate plates.The hook subordinate of back of the body spring briquetting colludes, and it colludes the end has the inclined-plane in the junction below back of the body spring, and the inclined-plane is that plastic cutter sheet draw-in groove top is the rotation roof pressure arc surface travel path of blade tail end.The draw-in groove that the hook portion of back of the body spring snaps in blade is the duty of blades open, otherwise is collapse state.

Description of drawings

It is such that structure of the present utility model constitutes:

Fig. 1 opens and uses view for the common pocket knife in market.

Fig. 2 is the common pocket knife collapse state schematic diagram in market.

Fig. 3 opens and uses view (omitting right side handle of a knife intermediate plate 6) for the utility model dual spring back of the body lock portable folding cutter.

Schematic diagram (omitting right side handle of a knife intermediate plate 6) when Fig. 4 turns back 45 for the utility model dual spring back of the body lock portable folding cutter.

Fig. 5 is the utility model dual spring back of the body lock portable folding folding full schematic diagram that folds of cutter blade (omitting right side handle of a knife intermediate plate 6).

Fig. 6 is the schematic diagram of the utility model dual spring back of the body lock portable folding cutter handle of a knife intermediate plate when unassembled.

Fig. 7 decomposes the parts schematic perspective view for the utility model dual spring back of the body lock portable folding cutter.

Among Fig. 3-Fig. 7, blade (1), back of the body spring (2), about face handle of a knife intermediate plate (3,6), spring groove (304), pad (7), pivot pin (8), handle of a knife pin (9), stop bit pin (5), pivot hole (108), draw-in groove (104), hook portion (201), pin hole (202), pin hole (305), pin hole (306), pin hole (307), back of the body spring hook portion handing-over inclined-plane (208), spring leaf (301), pin hole (302), slot to make way (303).

The specific embodiment

Most preferred embodiment of the present utility model is such, with reference to accompanying drawing 3-Fig. 7, face handle of a knife intermediate plate double team blade and back of the body spring about the utility model cutter hub, with pin as balance pivot, the draw-in groove that is snapped in blade by the hook portion of carrying on the back spring forms support, blade is propped up in duty, otherwise the hook portion of back of the body spring leaves that the insert pocket pocket knife is collapsible to fold.Specifically be that two sides, left and right sides handle of a knife intermediate plate (3,6) end face middle part has recessed arc slot to make way (303,603), with the handle of a knife middle part spring groove (304) is arranged, pin hole (306,307,302,305) and pin (5,8,9) are arranged, wherein pin (9) is in the installation site of pin hole (302,305), and pin (8) is in the installation site of pin hole (306).Blade (1) tail end has draw-in groove (104) on the top.There is hook portion (201) draw-in groove (104) position at the tail end top of the front end phase blade (1) of back of the body spring (2), hook portion is arranged to carrying on the back the travel path that handing-over inclined-plane, spring bottom surface (208) is blade (a 1) tail end rotation roof pressure arc surface (109) between hook portion (201) to the bottom surface of carrying on the back spring (2).Pin (9) is put into pin hole (204,307), and back of the body spring (2) forms the pivot point lever effect, and rightabout up-down alternative motion is made in back of the body spring (2) position that back of the body spring hook (201) is pressed press section (203) at back of the body spring (2) afterbody.When installing and using, pin (8) is put in the pin hole (108,306) of blade (1), left and right sides handle of a knife intermediate plate (3,6) and the hole of pad (7), packs into pin (9) under left and right sides handle of a knife intermediate plate (3,6) clamping after back of the body spring (2) aligns draw-in groove (104) position by its hook portion.Dress up a plane with the end face of the back of the body spring (2) and left and right sides handle of a knife intermediate plate (3,6), blade (1) and get final product, and the end face of blade (1) also can in left and right sides handle of a knife intermediate plate (3,6) and the lower slightly position, plane of carrying on the back spring (2) relatively.Back of the body spring (2) is pushed up and down to pull out blade (1) in press section (203) and is evened up work use or blade (1) and fold back clip slot between the left and right sides handle of a knife intermediate plate (3,6).Characteristics such as this dual spring back of the body lock portable folding cutter is opened easily, folds conveniently, and is easy to carry, safe and reliable.It is a kind of desirable portable folding cutter.

Claims

1, a kind of dual spring back of the body lock portable folding cutter, comprise left and right sides handle of a knife intermediate plate, back of the body spring, blade, pad, it is characterized in that accompanying between the left and right sides handle of a knife intermediate plate (3,6) back of the body spring (2) and blade (1), in the middle of left and right sides handle of a knife intermediate plate (3,6) and the back of the body spring (2) fulcrum pin (9) is housed, spring groove (304) is arranged in the middle of the left and right sides handle of a knife intermediate plate (3,6), back of the body spring (2) front end has hook portion (201), blade (1) afterbody end face has draw-in groove (104), and blade (1) tail end has rotation top pressure spring arc surface (109).

2, according to the described dual spring back of the body of claim 1 lock portable folding cutter, it is characterized in that carrying on the back draw-in groove (104) position of the hook portion (201) of spring (2) corresponding to blade (1).

3, according to the described dual spring of claim 1 back of the body lock portable folding cutter, it is characterized in that two sides, left and right sides handle of a knife intermediate plate (3), cutter holder sheet (6) can have more than a slice, is single intermediate plate, but also double grip-pieces, many intermediate plates.