CN201058433Y

CN201058433Y - Artists' knife

Info

Publication number: CN201058433Y
Application number: CNU2007201110926U
Authority: CN
Inventors: 王爱国
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-12
Filing date: 2007-07-12
Publication date: 2008-05-14
Anticipated expiration: 2017-07-12

Abstract

Disclosed is a utility knife which comprises a shell body, a tool holder and a blade; an opening is formed at the head part of the shell body for the expansion of the blade, and a chute is formed at the back part of the shell body for the gliding of a pushbutton, an elastic clamping piece is clamped and fixed at one side of the inner cavity at the rear part of the shell body, and a spare blade is clamped in a buckle of the elastic clamping piece; wherein, the portion of the pushbutton in the chute is connected with the tool holder, the blade is arranged on the tool holder and can slide in the shell body backwards and forwards following the tool holder, and the utility model also has a connection structure for stretching the blade by releasing the locking in the state of pressing the pushbutton by hand; and the utility model is characterized in that the tail parts of the base seat of the outer housing and the upper cover of the outer housing correspondingly are provided with adapting articulated parts, respectively, and the articulated parts juxtapose and connect the base seat of the outer housing with the upper cover of the outer housing by means of active hinged joint. The utility model pin-joints and fixes the upper cover of the shell body and the base seat of the shell body into one body, then the other half of the shell body will not be easily lost when taking and using the blade, moreover, the mutual buckling of the upper cover and the base seat is easier and more convenient.

Description

A kind of cutter

Technical field

The utility model relates to a kind of technical field of cutter.

Background technology

Cutter is because factor such as easy to use, quick is widely applied on the cutting occasion such as paper card.Simultaneously, consider that the blade of cutter is sharp, under off working state, easily hurt sb.'s feelings, in addition, blade is also easy factor such as wearing and tearing in use, and much cutters have designed the blade reserve chamber of the blade that stores for future use in the position in the back, hide the blade of receiving spare blade and removing from knife rest.Common blade reserve chamber design is generally very simple, it only is cavity with the blade shapes broadly similar, its defective is to use very inconvenient, when particularly blade being taken out from the blade reserve chamber, usually the outer casing base of cutter can only be turned over, spare blade is poured out in the blade reserve chamber, if blade is laid discomfort in advance, sometimes also be difficult to blade is directly poured out, need blade be dialled from reserve chamber by other instruments and take out.In addition, this blade reserve chamber structure does not have specific fixture, blade can not be fixed in the blade reserve chamber, so, take that blade can drop out unexpectedly in the process of blade from reserve chamber, be easy to hurt finger.

For this reason, the patent No. is that 03229342.9 Chinese patent " a kind of cutter of changeable blade " provides a kind of cutter that can change blade of conveniently taking, but its structure more complicated, production is not easy to assembly, also damage easily, in use spare blade unexpectedly drops out from bonnet easily and hurts sb.'s feelings in addition.My patent No. is that the formerly Chinese utility model " cutter " of ZL200520014195.1 (notification number is CN2855774Y) then provides more advantages of simple of a kind of structure, make easily, and do not allow flimsy cutter, but the housing of this cutter is fastened by loam cake that is separated from each other and base and forms, in use, when opening loam cake replacing blade, be easy to because loam cake is placed conveniently and lost, moreover, behind each replacing blade, after need aligning fully, corresponding female protuberance position on base and the shell could really fasten, and cumbersome and time-consuming, await further to improve.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of cutter, and its housing is opened and closed up convenient and swiftly, and it is easy to pick and place blade, and structure is more reasonable.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this cutter includes

One housing has outer casing base and outer casing upper cover;

One dress knife rest; And

Blade;

Housing forms for the flexible opening of blade at head, and housing forms the chute that slides for push button at the back, and housing fixes flexible card in a side of rear portion inner chamber, and card has spare blade in the buckle of elastic card;

Wherein, described push button links together with described dress knife rest at position, chute the inside, on the dress knife rest blade is housed, and can the front and back slip with the dress knife rest in housing, hand is arranged by the syndeton that blade is stretched that unlocks between push button and the housing;

It is characterized in that: described outer casing base and outer casing upper cover have mutually adaptive articulated section respectively accordingly at tail position, described articulated section make described outer casing base and outer casing upper cover by being movably hinged involutory being connected together.

Useful is, described housing forms facade on the inboard face of outer casing base, accordingly, form the cooperation facade, formed draw-in groove between the facade at opposite side, elastic card has the connection edge of a bending, elastic card is fixed on the inboard face of outer casing base elastic card by connecting edge and draw-in groove clamping, and it is simple and strong for structure, make easily, be not easy to damage.

For the people is taken out blade from card, above-mentioned cooperation facade is connected with transition face, and transition face is to reduce inclination gradually, is adjacent to the position, outside of elastic card, and it is inclined upwardly the back of blade naturally, and is easy to use, can not get in the way.

For making elastic card keep better elastic and the chucking power of certain clamping blade being arranged, above-mentioned elastic card main body section presents " " font forms the arc ridge in the outside side of bottom land to U, and lateral surface is more gradually near the inboard face of elastic card then.

For the mounting or dismounting that make cutter convenient, establish technical foundation for changing blade easily, described outer casing base forms the through hole of a band indent step surface at inboard face, and outer casing upper cover has the short projection of a hollow at corresponding position, be provided with a locking knob in the projection, this locking knob has in the end and passes described through hole and after rotation turns to and be fastened on dop on the described indent step surface, connect by the rotation blocking between dop and the indent step surface, outer casing upper cover and outer casing base are coupled together.

As improvement, above-mentioned housing forms circular arc-shaped recess below the locking knob front, and is surrounded by the crescent garment bag below the locking knob back, cutter is held more stick on hand comfortable, easy to use.

At last, the dress knife rest is stamping out cavity near opening, the embedded intrinsic magnetic patch that is used for holding blade, and in dress blade process, blade is not easy unexpectedly to split away off from opening like this, makes cutter change blade and is more prone to convenient, can not hinder hand.

Compared with prior art, advantage of the present utility model is: case top lid and housing base are hinged to be fixedly connected in one, make to be difficult for when taking blade second half housing is lost, and loam cake and base is also convenient more easily when fastening mutually.And cutter of the present utility model is relatively simple for structure, and rationally parts are few, manufacture easily, and cost is low, and sturdy construction is not easy to damage, and use also easily quick.

Description of drawings

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

Fig. 2 is the inboard structural representation of cutter outer casing base.

Fig. 3 is the inboard structural representation (the dress knife rest is pulled down state) of cutter outer casing base.

Fig. 4 is the inboard structural representation of outer casing upper cover.

Fig. 5 launches schematic diagram for the cutter overall structure.

Fig. 6 be among Fig. 2 A-A to cutaway view.

Fig. 7 is the local state figure (when locking knob is turned on) in the outer casing base outside of cutter.

Fig. 8 is the local state figure (when locking knob screws) in the outer casing base outside of cutter.

Fig. 9 be among Fig. 7 B-B to cutaway view.

Figure 10 be among Fig. 8 C-C to cutaway view.

The specific embodiment

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

As Fig. 1～shown in Figure 7, be the cutter schematic diagram of the selected preferred embodiment of the utility model, it includes outer casing base 1, outer casing upper cover 2, dress knife rest 3 and blade 4, wherein:

Outer casing base 1 and outer casing upper cover 2 are to be concavo-convex cooperation at head, and adopt metal to make, by outer casing upper cover 2 and the outer casing base 1 involutory housing of just having formed cutter that couples together, described outer casing base 1 and outer casing upper cover 2 have adaptive articulated section 11 mutually respectively accordingly at tail position, 21, the articulated section of outer casing base 1 has the projection 111 of shell base 1 inboard outward, and the articulated section of outer casing upper cover 2 has two towards parallel protruding 211 of outer casing upper cover 2 inboards, 212, on the outer casing upper cover 2 parallel protruding 211, has groove 213 between 212, described outer casing base 1 projection 111 just in time can be plugged in the groove 213 and with parallel protruding 211,212 be hinged fixing, therefore, described articulated section 11,21 have by being movably hinged structure described housing is combined and is connected together, referring to Fig. 5.

As Fig. 2,3, housing forms for the flexible opening 12 of blade at head, outer casing base 1 forms gathering sill 13 in the front portion near opening 12, bottom land two guide rails 14 that distributed, described dress knife rest 3 can slide front and back in gathering sill 13, dress knife rest 3 middle parts have and cannelure 31, but and and be arranged on stopper 10 both sides between the guide rail 14 and offset and limit the stroke of dress knife rest 3 in gathering sill 13; The last lower sideband of dress knife rest 3 has omoplate guide rail 32, and blade 4 can be embedded between omoplate guide rail 32, and the bayonet socket 41 on the blade 4 cooperates and is fixed on card base 33 on adorning knife rest 3 to be adorned on the knife rest 3; Dress knife rest 3 inboard faces go out a cavity in the punch forming of front end place, build-in one magnetic patch 34 in the cavity, and this magnetic patch 34 is used for holding blade 4, prevents that blade from sliding in installation process, hurts finger.

Housing forms the chute 15 that slides for push button 5 at the back, push button 5 links together with dress knife rest 3 at position, chute 15 the inside, on the dress knife rest 3 blade 4 is housed, and can be in housing with the dress knife rest front and back slide, press under push button 5 states at hand, also have the syndeton that blade is stretched that can unlock.

As Fig. 3, Fig. 6, the housing inboard face of position such as handle in the back fixes flexible card 6, blocks spare blade 7 in the buckle of elastic card 6.Elastic card 6 main body sections present " U " font, form arc ridge 61 at bottom land outward side 62, and outer side edges 62 gradually near the inboard limit 63 of elastic card, forms a protectiveness crimping 64 in outer side edges 62 ends more naturally then, prevents to hinder hand.Elastic card 6 then is fixed in the housing by following structure screens: form horizontal wall facade 16 on the outer casing base 1 inboard face, some positions below a little, also form on the outer casing base 1 and cooperate wall facade 17, make and formed a draw-in groove 18 between both facades, and following wall facade 17 is connected with transition face 19, transition face 19 is perpendicular and reduce gradually with this facade, and be adjacent to the position, the back side of elastic card 6, correspondingly, elastic card 6 has the connection edge 65 of a bending.Thus, elastic card 6 is fixed on the outer casing base 1 inboard face elastic card 6 by connecting edge 65 and described draw-in groove 18 clampings.

As Fig. 4, Fig. 7～Figure 10, carry out the dismounting blade for the ease of cutter, outer casing base 1 and outer casing upper cover 2 are to adopt efficiently that syndeton assembles, outer casing base 1 forms the through hole 113 of a band indent step surface 112 at inboard, middle part face, and outer casing upper cover has the short projection 23 of a hollow at the position, middle part of correspondence, be equipped with a locking knob 8 and in the projection 23 and be set in spring 9 on the locking knob 8, described spring 9 makes locking knob 8 have the trend of rebound reset from projection 23 when being depressed by straight line, described locking knob 8 has one in the end can pass described through hole 113 and after rotation turns to and be fastened on dop 22 on the described indent step surface 112, connect by the rotation blocking between dop 22 and the indent step surface 112, outer casing upper cover 2 and outer casing base 1 are coupled together.

In addition, housing also molds circular arc-shaped recess 114 below locking knob 8 fronts, be convenient to the forefinger hook and be held in this recess location, and housing then is surrounded by crescent garment bag 115 below the locking knob back, middle finger, the third finger and little finger of toe for hand are held, and improve the comfortableness of holding.

The operation principle of this cutter is as follows:

When will use spare blade, as Fig. 5, reverse rotation locking knob 8, the concave station terrace 112 that the root of locking knob 8 and dop 22 break away from through hole 113 surfaces outer casing upper cover 2 is thrown off from outer casing base 1, but both still is connected in one by articulated section 11,21, take out spare blade 7 from elastic card 6, old blade is shirked from the dress knife rest, lose or snap onto once more in the elastic card 6 and go, spare blade 7 is inlaid on the dress knife rest 3; Then, outer casing upper cover 2 and outer casing base 1 are once more to altogether, after dop 22 stretches in the through hole 113, behind the reverse again 90 degree rotational lock knobs 8, described dop 22 promptly is fastened on the concavo-convex step surface 112, so outer casing upper cover 2 couples together apace with outer casing base 1, promote the cutter head length that push button 5 just can be regulated cutter, used cutter.

Claims

1. a cutter includes

One housing has outer casing base and outer casing upper cover;

One dress knife rest; And

Blade;

Wherein, described push button links together with described dress knife rest at position, chute the inside, on the dress knife rest blade is housed, and can the front and back slip with the dress knife rest in housing, press under the push button state at hand, also have the syndeton that blade is stretched that can unlock;

2. cutter according to claim 1, it is characterized in that described housing forms facade on the inboard face of outer casing base, accordingly, form the cooperation facade at opposite side, formed draw-in groove between the facade, elastic card has the connection edge of a bending, and elastic card is fixed on the inboard face of outer casing base elastic card by connecting edge and draw-in groove clamping.

3. cutter according to claim 2 is characterized in that described cooperation facade is connected with transition face, and transition face is to reduce inclination gradually, is adjacent to the position, the back side of elastic card.

4. cutter according to claim 3 is characterized in that described elastic card main body section presents " U " font, forms the arc ridge in the outside side of bottom land, and lateral surface is more gradually near the inboard face of elastic card then.

5. according to any described cutter of claim in the claim 1 to 4, it is characterized in that described outer casing base forms the through hole of a band indent step surface at inboard face, and outer casing upper cover has the short projection of a hollow at corresponding position, be provided with a locking knob in the projection, this locking knob has in the end and passes described through hole and after rotation turns to and be fastened on dop on the described indent step surface, connect by the rotation blocking between dop and the indent step surface, outer casing upper cover and outer casing base are coupled together.

6. cutter according to claim 5 is characterized in that described housing forms circular arc-shaped recess below the locking knob front, and be surrounded by the crescent garment bag below the locking knob back.

7. cutter according to claim 6 is characterized in that described dress knife rest stamps out cavity at its inboard face, and build-in is used for holding the magnetic patch of blade in the cavity.