CN102490192A

CN102490192A - Practical scraping knife with standby blade

Info

Publication number: CN102490192A
Application number: CN2011103791909A
Authority: CN
Inventors: 曾维松
Original assignee: 成都鑫三洋科技发展有限公司
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2012-06-13

Abstract

The invention relates to a practical scraping knife with a standby blade. The practical scraping knife comprises a knife body which is a narrow and long handle-shaped part; an inclined groove is arranged in the front end of the knife body; a blade retainer extends from the groove; a semicircular plate is arranged at the front part of the blade retainer; a through hole is formed at the circle center of the semicircular plate for fixing the blade; the blade is a disk-shaped blade of which the middle is provided with a through hole; a plurality of tightly-arranged edges are distributed on a disk of the disk-shaped blade at intervals so as to form scratches; and a standby blade retaining device is arranged at the rear end of the knife body. The practical scraping knife disclosed by the invention has a simple structure and is convenient to use; the blade for later use can be carried along so as to facilitate the replacement; and the blade can be effectively protected when the practical scraping knife is not in use.

Description

Cutter is drawn in practicality with spare blade

Technical field

The cutter field that the present invention relates to relates in particular to a kind of practicality with spare blade and draws cutter.

Background technology

Draw cutter, a kind of as cutter can be used on the scraps of paper, plastic plate etc., mark septal line usually; Be beneficial to tear or cut; For example the spaced openings on the stamp plate etc. is drawn a cutter and can be realized such opening, owing to draw the sharp easy damage of blade of cutter; And blade stretches out outside the cutter, when not using, damages outer body easily.For this reason, designer of the present invention is because above-mentioned defective through concentrating on studies and designing, comprehensively is engaged in for a long time the experience and the achievement of related industry for many years, and research and design goes out a kind of practicality of spare blade and draws cutter, to overcome above-mentioned defective.

Summary of the invention

The object of the present invention is to provide a kind of practicality with spare blade to draw cutter, it is simple in structure, and is easy-to-use, can have subsequent use blade with oneself, is convenient for changing, and more can when not using, effectively protect blade.

For realizing above-mentioned purpose, the invention discloses a kind of practicality and draw cutter with spare blade, this practicality is drawn cutter and is comprised cutter body; This cutter body is long and narrow handle shape parts, and its front end has inclined groove, extends blade holder from this groove; The front portion of this blade holder is a semi-circular plate, and circle centre position has through hole with fixed blade, and this blade is the disk blade with intermediate throughholes; Be intervally distributed with a plurality of compact arranged blades on its disk to form cut, it is characterized in that:

This cutter body rear end has the spare blade holding device; This spare blade holding device comprises the circular groove that is positioned at the cutter body rear end; The middle part of this center of circle groove has extended upward circular protrusions, and the middle indent of this circular protrusions has the screwed hole with internal thread, and spare blade; This spare blade is also for having the disk blade of intermediate throughholes; Be intervally distributed with a plurality of compact arranged blades on its disk to form cut, the intermediate throughholes of this spare blade can be held this circular protrusions, thereby this spare blade is placed in the circular groove.

Wherein: this spare blade holding device also includes at least one cover plate that covers this spare blade; This cover plate be discoid and its diameter at least greater than the diameter of this spare blade but less than the interior diameter of this circular groove; This spare blade holding device also includes trip bolt; The external screw thread of this trip bolt and the engagement of the screwed hole of this circular protrusions are to be fastened on this spare blade and at least one cover plate in the circular groove.

Wherein: have fastening bolt, pad and clamp nut on the through hole of blade holder, this fastening bolt passes behind through hole and the pad of intermediate throughholes, blade holder of blade and the clamp nut engagement successively, so that blade is fastened on the blade holder.

Wherein: between blade and blade holder, be provided with the blade baffle; This blade baffle is made up of two parts; Comprise the anterior circular slab and the elongated plates at rear portion; The diameter of this circular slab is greater than the diameter of this blade, and the middle part of this circular slab has oval slotted hole and oval protruding, and this ellipse slotted hole can hold fastening bolt and pass.

Wherein: this elongated plates comprises the lug boss at middle part and the male part of both sides; The lug boss at this middle part is provided with convexity so that promote whole blade baffle before and after the user, thereby can make circular slab surround the protective position of blade and expose between the use location of blade and move the guarantor; The male part of both sides and extend a flange respectively laterally; Corresponding with this flange is to be provided with corresponding preceding recess and back recesses in the both sides of inclined groove, wherein; When flange and preceding recess matching and fixing; This blade baffle is positioned at the protective position shown in the figure, and when flange and back recesses matching and fixing, the blade that this blade baffle is positioned at blade exposes the use location with the operation of can ruling.

Through said structure, the practical scribing cutter with spare blade of the present invention has following advantage:

1, simple in structure, dismounting is convenient;

2, easy to operate, change quick;

3, carry-on spare blade is provided, has made things convenient for replacing, improved efficient;

4, can when not using, protect blade not stretch out, carry out cutting operation, more can effectively protect blade thus and blade is stretched out.

The present invention will further describe in detail through following specific embodiment, and further combine will obtain knowing more and significantly understanding to the explanation of accompanying drawing.

Description of drawings

Fig. 1 has shown that the practicality with spare blade of the present invention draws the decomposing schematic representation of cutter.

Fig. 2 has shown that the practicality with spare blade of the present invention draws the combination sketch map of cutter.

The specific embodiment

Referring to Fig. 1 and Fig. 2, shown that the practicality with spare blade of the present invention draws the specific embodiment of cutter.This practicality is drawn cutter and is comprised cutter body 10; This cutter body 10 is long and narrow handle shape parts, and its front end has inclined groove 18, extends blade holder 16 from this groove 18; The front portion of this blade holder 16 is a semi-circular plate; Circle centre position has through hole with fixed blade 14, and this blade 14 is intervally distributed with a plurality of compact arranged blades to form cut for having the disk blade of intermediate throughholes on its disk.

These cutter body 10 rear ends have the spare blade holding device; This spare blade holding device comprises the circular groove 12 that is positioned at cutter body 10 rear ends; The middle part of this center of circle groove 12 has extended upward circular protrusions, and the middle indent of this circular protrusions has the screwed hole with internal thread, and spare blade 14; This spare blade 14 is also for having the disk blade of intermediate throughholes; Be intervally distributed with a plurality of compact arranged blades on its disk to form cut, the intermediate throughholes of this spare blade 14 can be held this circular protrusions, thereby this spare blade 14 is placed in the circular groove 12.

Wherein, This spare blade holding device also includes at least one cover plate that covers this spare blade; This cover plate be discoid and its diameter at least greater than the diameter of this spare blade 14 but less than the interior diameter of this circular groove 12; Thus, this at least one cover plate can effectively cover spare blade, and spare blade 14 is remained in the circular groove 12.

Wherein, this spare blade holding device also includes trip bolt, and the external screw thread of this trip bolt and the engagement of the screwed hole of this circular protrusions are to be fastened on this spare blade and at least one cover plate in the circular groove.

Wherein, Have fastening bolt 26, pad 30 and clamp nut 28 on the through hole of blade holder 16; This fastening bolt 26 passes the intermediate throughholes of blade 14, through hole and pad 30 backs and clamp nut 28 engagements of blade holder 16 successively, so that blade 14 is fastened on the blade holder 16.

Wherein, In order to protect blade when not using, not stretch out cutter; Between blade 14 and blade holder 16, be provided with blade baffle 38, this blade baffle 38 is made up of two parts, comprises the anterior circular slab 24 and the elongated plates at rear portion; The diameter of this circular slab 24 is greater than the diameter of this blade; The middle part of this circular slab 24 has oval slotted hole 32 and oval convexity 34, and this ellipse slotted hole 32 can hold fastening bolt 26 and pass, and preferably; The width of this ellipse slotted hole 32 is less than the diameter of the intermediate throughholes of blade 14; The width that has rectangular indentation 36 and rectangular indentation portion on this fastening bolt 26 equal this ellipse slotted hole 32 width so that the position of this rectangular indentation 36 smoothly through oval slotted hole 32, oval protruding 34 can make that blade 14 and circular slab 24 are spaced apart to be contacted with it with the blade of avoiding blade 14, thereby can not wear and tear blade.

This elongated plates comprises the lug boss 42 at middle part and the male part 40 and 44 of both sides; The lug boss 42 at this middle part is provided with convexity so that promote whole blade baffle 38 before and after the user, thereby can make circular slab 24 surround the protective position of blade and expose between the use location of blade and move the guarantor; The male part 40 and 44 of both sides is extended a flange respectively laterally; Corresponding with this flange is to be provided with corresponding preceding recess and back recesses in the both sides of inclined groove 18, wherein; When flange and preceding recess matching and fixing; This blade baffle 38 is positioned at protective position shown in Figure 1, and when flange and back recesses matching and fixing, the blade that this blade baffle 38 is positioned at blade 14 exposes the use location with the operation of can ruling.Through foregoing description, the present invention not only provides subsequent use blade, and can effectively protect blade, has not only prolonged service life, also is convenient to safeguard and change.

It is obvious that, and above description and record only are for example rather than in order to limit disclosure of the present invention, application or use.Though described and be described in the drawings embodiment in an embodiment; But the optimal mode that the present invention does not limit by the accompanying drawing example and the conduct of describing is in an embodiment thought at present is with the specific examples of the instruction of embodiment of the present invention, and scope of the present invention will comprise any embodiment of the specification that falls into the front and appended claim.

Claims

1. cutter is drawn in the practicality with spare blade, and this practicality is drawn cutter and comprised cutter body, and this cutter body is long and narrow handle shape parts; Its front end has inclined groove, extends blade holder from this groove, and the front portion of this blade holder is a semi-circular plate; Circle centre position has through hole with fixed blade; This blade is the disk blade with intermediate throughholes, is intervally distributed with a plurality of compact arranged blades on its disk to form cut, it is characterized in that:

2. cutter is drawn in practicality as claimed in claim 1; It is characterized in that: this spare blade holding device also includes at least one cover plate that covers this spare blade; This cover plate be discoid and its diameter at least greater than the diameter of this spare blade but less than the interior diameter of this circular groove; This spare blade holding device also includes trip bolt, and the external screw thread of this trip bolt and the engagement of the screwed hole of this circular protrusions are to be fastened on this spare blade and at least one cover plate in the circular groove.

3. cutter is drawn in according to claim 1 or claim 2 practicality; It is characterized in that: have fastening bolt, pad and clamp nut on the through hole of blade holder; This fastening bolt passes behind through hole and the pad of intermediate throughholes, blade holder of blade and the clamp nut engagement successively, so that blade is fastened on the blade holder.

4. cutter is drawn in practicality as claimed in claim 3; It is characterized in that: between blade and blade holder, be provided with the blade baffle; This blade baffle is made up of two parts, comprises the anterior circular slab and the elongated plates at rear portion, and the diameter of this circular slab is greater than the diameter of this blade; The middle part of this circular slab has oval slotted hole and oval protruding, and this ellipse slotted hole can hold fastening bolt and pass.

5. cutter is drawn in practicality as claimed in claim 4; It is characterized in that: this elongated plates comprises the lug boss at middle part and the male part of both sides; The lug boss at this middle part is provided with convexity so that promote whole blade baffle before and after the user, thereby can make circular slab surround the protective position of blade and expose between the use location of blade and move the guarantor; The male part of both sides is extended a flange respectively laterally; Corresponding with this flange is to be provided with corresponding preceding recess and back recesses in the both sides of inclined groove, wherein; When flange and preceding recess matching and fixing; This blade baffle is positioned at the protective position shown in the figure, and when flange and back recesses matching and fixing, the blade that this blade baffle is positioned at blade exposes the use location with the operation of can ruling.