CN2753601Y

CN2753601Y - Blade-changeable artist's hand tool

Info

Publication number: CN2753601Y
Application number: CN 200420114834
Authority: CN
Inventors: 王爱国
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-24
Filing date: 2004-12-24
Publication date: 2006-01-25
Anticipated expiration: 2014-12-24

Abstract

The utility model relates to an artist knife, particularly to an artist knife with a replaceable blade, which comprises a housing provided with a hollow holding chamber, wherein the front end of the housing is provided with a knife outlet, sliver-shaped holes are formed on a side wall, a knife holder is held in the holding chamber of the housing, and the blade which can follow the knife holder to synchronously expand and retract is arranged on the knife holder; a guideway is also fixed in the housing, both sides of the lower part of the guideway on which an inlay slot is formed are provided with guide slots, both sides of the inlay slot are provided with limitation openings, a positioning button penetrates through the inlay slot and is elastically connected with the knife holder, and a countercheck part is arranged on the positioning button. Holes are formed on one guide slot under the guideway, the knife holder is provided with a positioning elastic sheet, and an elastic pressing button which can push and press the positioning elastic sheet is formed on the bottom of the housing of which the rear part is provided with a chamber for spare blades. The utility model has the advantages of simple structure, easy assembly, convenient use, etc.

Description

A kind of cutter of changeable blade

Technical field

The utility model relates to a kind of cutter, relates in particular to a kind of cutter of changeable blade.

Background technology

Existing cutter kind has a lot, it all has the function that can load and unload the replacing blade a lot of cutters that occur on the market, yet the sending knife structure and unload all more complicated of its structure of knife structure of these cutters, it has generally all used this element of spring, and we know that spring accurately is installed in the housing is the comparison difficulty.

As a patent No. is a kind of structure the Chinese utility model patent " cutter of changeable blade " of ZL03229342.9 (notification number is CN2619804Y) discloses, a kind of cutter of changeable blade, it comprises housing, housing is by recessed mutually, the left shell of protruding identical connection and right shell are formed, make by metal, therein, back shank does not have the soft bound edge of moulding, housing is provided with the flexible cylindrical void of blade at head, the top has elongated window, window slotted eye both sides are equidistant positioning tooths, navigation button passes above-mentioned slotted eye and is connected with the dress knife rest that is located at inner chamber, the navigation button both sides are provided with the positioning tooth that is meshed with above-mentioned slotted eye positioning tooth, and it has hand with the dress knife rest and removes the flexible syndeton of engagement promotion blade; Its syndeton is: should intert in the square hole of the upper and lower wall of dress knife rest by the off-centre leg for eccentric leg the navigation button below, what eccentric leg can not rotate in this square hole is provided with back-moving spring on the eccentric leg between the upper and lower wall, blade is positioned in the dress knife rest and dress knife rest synchronization telescope, described hull outside is provided with the blade loading and unloading switch of changing blade, it can move along the housing skewed slot, and buckle by blade and to pull axle and connect a blade buckle, be connected and same moved further with the dress knife rest again, between blade buckle axle and housing internal chamber wall, be provided with reset tension spring.Described blade is the blade buckle that can upwards lift that is provided with on the knife rest with its flexible connection adorning with the synchronization telescope structure of dress knife rest, two downward boss are arranged on the blade buckle, two recessed round tablings on it and the blade form the blade buckle and are adorned the passing of knife rest and drive the flexible structure of blade.

Parts in the above-mentioned utility model are by the housing of being made up of left shell and right shell, navigation button, dress knife rest, reset tension spring, blade buckle, back-moving spring, reset tension spring or the like, and therefore related parts are many.Resetting of navigation button needs the effect of back-moving spring, dress knife rest ground resets then must be by the reset tension spring effect, therefore back-moving spring and reset tension spring accurately will be installed in the housing when the assembling of reality is the comparison difficulty, also has spring after using longer a period of time, the spring easy deformation, elasticity dies down, also having spring to hold gets rusty, thereby reduced the service life of cutter, also having us also must form in housing can be for the guide groove of dress knife rest slip, process the structure meeting more complicated of such its mould of housing, be unfavorable for manufacturing and assembling, and improved production cost.In sum, existing cutter can also improve further.

Summary of the invention

Technical problem to be solved in the utility model is the cutter that a kind of assembling simple in structure, easy, changeable blade easy to use are provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of cutter of changeable blade, it includes a housing with medium altitude chamber, the housing front end then has one and goes out the edge of a knife, have bar hole on the sidewall of housing one side, one tool rest is placed in the housing room, and tool rest is provided with and can it is characterized in that also being fixed with in the described housing guide rail with the blade of tool rest synchronization telescope, both sides, guide rail below have guide groove, and described tool rest just is positioned over also can be along its slippage in the guide groove; Guide rail is provided with and the corresponding caulking groove of bar hole, and the both sides of caulking groove have limited mouth, and a location button passes above-mentioned caulking groove and links together with the tool rest elasticity that is located in the guide rail, has on the navigation button and the limited mouth of the caulking groove both sides stop part of clamping matching mutually; On a guide groove below the described guide rail, have the hole, and the corresponding side in the hole on described tool rest and the guide groove has Location resilient piece, and on housing bottom and the guide groove corresponding position, hole form can push Location resilient piece elasticity by press button.

In order to make cutter convenient when changing blade, need not to carry in addition again the blade cartridge that blade is housed, we also are provided with the spare blade storehouse of storage blade at above-mentioned housing rear portion.This its structure of spare blade storehouse is: the open-topped cavity volume that has at the housing rear, the afterbody of housing is connected with the blade cartridge that can store the multi-disc blade rotationally, this blade cartridge can be placed in the cavity volume at housing rear, under the state after blade cartridge is placed in housing, blade cartridge and housing form integrative-structure.

Above-mentioned blade top is provided with a bayonet socket at least, a side of tool rest then be provided with bayonet socket fasten the location flange, adopt this kind with blade be arranged on tool rest and can with the structure of tool rest synchronization telescope, it has placement blade simple in structure advantage easily.

The structure that the navigation button of stating is connected with elasticity between the tool rest is: have the bar shaped flexure strip of a bending in the middle of tool rest, described navigation button just is fixedly connected on this bar shaped flexure strip after passing above-mentioned caulking groove.Adopt this kind mode that navigation button and the tool rest elasticity that is located in the guide rail are linked together, because its bar shaped flexure strip by bending in the middle of the tool rest is realized navigation button upspringing after pressing down, and need not to adopt other elastomeric element (as spring), so simplify the structure.

In order to simplify production process, and make things convenient for us to hold by this cutter, above-mentioned housing forms with injection molding, and has at the surface forming of housing and conveniently to hold the jog of taking.

Compared with prior art, advantage of the present utility model is that it includes a track element, only this guide rail need being packed into during assembling, housing is interior to get final product, and need not in housing, to form guide groove, so just, can simplify the structure of making housing mould, also because navigation button is to be fixedly connected on the middle bar shaped flexure strip of tool rest, navigation button is to reset by the bar shaped flexure strip on the tool rest, need not that back-moving spring is set in addition again resets, therefore can simplify the assembly process of this kind cutter, and the bar shaped flexure strip is not yielding, and good springiness is so can prolong the service life of cutter; When we will load and unload blade, only need press and promote forward navigation button, driving tool rest slides to the housing front end along guide rail, when it arrives certain position, because the Location resilient piece of tool rest one side, be fastened on the hole front end on the guide rail guide groove, so just can not continue to promote tool rest moves ahead, this moment is as long as the elasticity of pressing housing bottom again by press button, and then promotes to move on the Location resilient piece, makes the hole on the Location resilient piece getaway below guide groove of tool rest one side, simultaneously, press and promote forward navigation button again, drive tool rest and slide to the housing front end, till the bar hole end of navigation button being shifted onto on the housing sidewall along guide rail, make the major part of tool rest be exposed at the housing outside like this, again the blade on the tool rest is taken off, change new blade and press navigation button again, it is slided to the housing rear end along guide rail get final product.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 is the partial sectional view of the utility model embodiment;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view;

Fig. 4 is that the B-B of Fig. 2 is to cutaway view.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

The cutter of a kind of changeable blade shown in Fig. 1～4, it includes a housing 1 with medium altitude chamber, housing 1 usefulness injection molding forms, and have at the surface forming of housing 1 and conveniently to hold the jog of taking 13, housing 1 rear portion also is provided with the spare blade storehouse of storage blade, this its structure of spare blade storehouse is: the open-topped cavity volume that has at housing 1 rear, the afterbody of housing 1 is connected with the blade cartridge 6 that can store the multi-disc blade rotationally, this be rotatably connected for: the afterbody symmetry at housing 1 has two circular holes, the corresponding position of blade cartridge 6 has a through hole, one pivot pin 7 links together blade cartridge 6 and housing 1, this blade cartridge 6 can be placed in the cavity volume at housing 1 rear, under the state after blade cartridge 5 is placed in housing 1, blade cartridge 6 forms integrative-structure with housing 1, and the structure in this spare blade storehouse also can be disclosed various structures in its prior art certainly.

The front end of above-mentioned housing 1 then has one and goes out the edge of a knife, have bar hole 11 on the sidewall of housing 1 one sides, be fixed with a guide rail 4 in housing 1 medium altitude chamber, this guide rail 4 has the metallic plate punching brake forming to form, the both sides brake forming of guide rail 4 below has guide groove 41, one tool rest 2 is positioned over also can be along guide groove 41 slippages in the guide groove 41, tool rest 2 is provided with can be with the blade 3 of tool rest 2 synchronization telescopes, above-mentioned blade 3 tops are provided with a bayonet socket 31 at least, one side of tool rest 2 then is provided with the flange 22 that fastens and locate with bayonet socket 31, adopt this kind structure blade 3 can be arranged on the tool rest 2 and can with tool rest 2 synchronization telescopes, have above the described tool rest 2 and bar hole 11 corresponding caulking grooves 42, the both sides of caulking groove 42 have limited mouth 43, and this limited mouth 43 is symmetry issue, and have how right; Having a location button 5 to pass above-mentioned caulking groove 42 links together with tool rest 2 elasticity that are located in the guide rail 4, the structure that above-mentioned navigation button 5 is connected with elasticity between the tool rest 2 is: the bar shaped flexure strips 23 that have a bending in the middle of tool rest 2, described navigation button 5 just is fixedly connected on this bar shaped flexure strip 23 after passing above-mentioned caulking groove 42, link together by rivet between navigation button 5 and the elasticity flexure strip 23, it can certainly be other connected mode, as screw or welding or the like, have on the navigation button 5 and the limited mouth 43 of the caulking groove 42 both sides stop part 51 of clamping matching mutually; On a guide groove 41 below the described guide rail 4, have hole 44, and described tool rest 2 has Location resilient piece 23 with hole 43 corresponding sides on the guide groove, and on housing 1 bottom and the guide groove 43 corresponding positions, hole form can push Location resilient piece 23 elasticity by press button 12.

The course of work of the present utility model and principle are such: press and promote forward navigation button 5 during use, driving tool rest 2 slides to housing 1 front end along guide rail 4, when it arrives between the limited mouth 43 on the wherein a pair of caulking groove 42, unclamp navigation button 12, at this moment, navigation button 5 is under the elastic force effect of bar shaped flexure strip 23, make navigation button 5 up, stop part 51 on the navigation button 5 just is fastened on 43 of limited mouths, so just pinned tool rest 2, so just can carry out work with this cutter; Expose more when we need the blade 3 on the tool rest, during with convenient cutting, then only need to press again and promote forward navigation button 5, continue to drive tool rest 2 reaches, make tool rest 2 arrive more limited mouth 43, and tool rest 2 is locked between this limited mouth 43 gets final product by housing 1 end; When we need change blade 3, then press and promote forward navigation button 5 again, driving tool rest 5 slides to housing 1 front end along guide rail, when it arrives certain position, because the Location resilient piece 23 of tool rest 2 one sides, be fastened on hole 43 front ends on the guide rail guide groove, so just can not continue to promote tool rest 2 moves ahead, this moment is as long as press the elasticity of housing 1 bottom again by press button 12, and then promote to move on the Location resilient piece 23, make the hole 43 on the Location resilient piece 23 getaways 4 below guide grooves of tool rest 2 one sides, simultaneously, press navigation button 5 again, and promote it and continue to slide to housing 1 front end along guide rail 4, till bar hole 11 ends of navigation button 5 being shifted onto on housing 1 sidewall, make the major part of tool rest 2 be exposed at housing 1 outside like this, again the blade on the tool rest 23 is taken off, in the blade cartridge 6 at housing 1 rear portion, take out blade 3, it is installed on the tool rest 2, presses again and pusher navigation button 5, make it slide into certain position to housing 1 rear end and get final product along guide rail 4.

Claims

1, a kind of cutter of changeable blade, it includes a housing (1) with medium altitude chamber, housing (1) front end then has one and goes out the edge of a knife, have bar hole (11) on the sidewall of housing (1) one side, one tool rest (2) is placed in the housing room, tool rest (2) is provided with can be with the blade (3) of tool rest synchronization telescope, it is characterized in that also being fixed with in the described housing (1) guide rail (4), both sides, guide rail (4) below have guide groove (41), and described tool rest (2) just is positioned over also can be along its slippage in the guide groove (41); Guide rail (4) is provided with and the corresponding caulking groove (42) of bar hole (11), the both sides of caulking groove (42) have limited mouth (43), one location button (5) passes above-mentioned caulking groove (42) and links together with tool rest (2) elasticity that is located in the guide rail (4), has on the navigation button (5) and the limited mouth (43) of caulking groove (42) the both sides stop part of clamping matching (51) mutually; On a guide groove (41) of described guide rail (4) below, have hole (44), and the corresponding side in hole (44) on described tool rest (2) and the guide groove has Location resilient piece (21), and corresponding position, hole (44) forms the elasticity that can push Location resilient piece (21) and presses press button (12) on housing (1) bottom and the guide groove.

2, the cutter of changeable blade according to claim 1 is characterized in that described housing (1) rear portion also is provided with the spare blade storehouse of storage blade.

3, the cutter of changeable blade according to claim 2, it is characterized in that its structure of described spare blade storehouse is: the open-topped cavity volume that has at housing (1) rear, the afterbody of housing (1) is connected with the blade cartridge (6) that can store the multi-disc blade rotationally, this blade cartridge (6) can be placed in the cavity volume at housing (1) rear, under the state after blade cartridge (6) is placed in housing (1), blade cartridge (5) forms integrative-structure with housing (1).

4, the cutter of changeable blade according to claim 1 is characterized in that described blade (3) top is provided with a bayonet socket (31) at least, and a side of tool rest (2) then is provided with the flange (22) that fastens and locate with bayonet socket (31).

5, the cutter of changeable blade according to claim 1, it is characterized in that the structure that described navigation button (5) is connected with elasticity between the tool rest (2) is: have the bar shaped flexure strip (23) of a bending in the middle of tool rest (2), described navigation button (5) just is fixedly connected on this bar shaped flexure strip (23) after passing above-mentioned caulking groove (42).

6, the cutter of the described changeable blade of claim 1 is characterized in that described housing (1) forms with injection molding, has at the surface forming of housing (1) and conveniently holds the jog of taking (13).