CN101200071A

CN101200071A - Cutting knife

Info

Publication number: CN101200071A
Application number: CNA2007101723563A
Authority: CN
Inventors: 吴雪旻
Original assignee: Shanghai Kunjie Hardware Tool Co Ltd
Current assignee: Shanghai Kunjie Hardware Tool Co Ltd
Priority date: 2007-12-14
Filing date: 2007-12-14
Publication date: 2008-06-18

Abstract

The invention provides a cutting knife, which comprises a shank composed of an upper shank and a lower shank, a holder arranged movably between the upper and the lower shanks and a blade arranged on the holder. The holder can drive the blade sliding between the upper and the lower shanks so as to extend or withdraw the blade; a movable cover is connected on the upper shank; a blade storage groove for storing the blades, in which a plurality of blades can be arranged, is arranged in the upper shank; the bottom of the cover is provided with a spring sheet which is pressed in butt on the blade in the blade storage groove; the holder is arranged under the stored blades. When no blade is on the holder, the stored blade can be installed automatically on the holder under the effect of the spring sheet of the cover. The invention has the advantages of simple structure, automatic change of the blade and convenient usage.

Description

Cutting knife

Technical field

The present invention relates to a kind of instrument, relate in particular to a kind of cutting knife.

Background technology

Traditional cutting knife is divided into fixed, collapsible and telescopic usually, generally is used for cutting paper, cloth, leather etc.; As Chinese patent CN93208241.6 disclosed " a kind of telescopic cut rope cutting knife ", utilize exactly and push the blade that sliding shoe promotes to be hidden in the handle of a knife and stretch out step by step, but it change comparatively inconvenience of blade; And Chinese patent CN03223149.0 discloses " a kind of combined type cutting knife ", by blade being installed in the groove of tool rest, utilize loam cake and locking plate to cooperate, can change blade comparatively easily, but structure is comparatively complicated, and also need earlier locking plate to be opened when changing blade, there is awkward problem equally.

Summary of the invention

Purpose of the present invention is exactly in order to provide a kind of cutting knife with new structure.

In order to achieve the above object, the present invention has adopted following technical scheme: a kind of cutting knife, comprise the handle of a knife that combines by last handle of a knife and following handle of a knife, be movably arranged on the tool rest between the handle of a knife up and down and be installed in blade on the tool rest, tool rest can drive blade and blade is stretched out or take in sliding between the handle of a knife up and down, on last handle of a knife, be connected with the movable blade lid, be characterized in that described going up in the handle of a knife is provided with a storage cutter groove that is used to store blade, can deposit many in the storage cutter groove blade; Described cutter lid bottom is provided with spring leaf, and this spring leaf is pressed on the interior blade of storage cutter groove; Described tool rest is arranged on the below that stores blade, and during no blade, the storage blade can be installed on the tool rest under the effect of cutter lid spring sheet automatically on tool rest.

Also comprise spring, uncap key and pressing plate; Described rear end of going up handle of a knife is provided with a spring groove, and the spring groove top is provided with the step that the key that is suitable for uncapping slides; Spring is arranged in the spring groove; The key of uncapping is inlaid on the step, and its upper end is set on the pressing plate, and the lower end is stretched in the spring groove and is resisted against the front end of spring; Pressing plate is connected on the handle of a knife and is sealed on the top of spring groove; The rear and front end of described cutter lid respectively is provided with one and is used for the fixture block that is movably connected with last handle of a knife, and the opening and closing of cutter lid can be controlled in the top that makes the front end of the key of uncapping insert or withdraw from the rear end fixture block of cutter lid by the key that promotes to uncap.

The described key of uncapping is made of the upper end push pedal that fuses, middle key plate and lower end spring stop, push pedal becomes L shaped and is provided with the convenient hand propelled of using of coarse upper surface, the key plate is used to insert the fixture block top, rear end of cutter lid in the middle of being horizontally installed on, and the below that spring stop is arranged on the key plate perpendicular to the key plate is used to stretch in the spring groove and is resisted against the front end of spring.

Be provided with a square hole in the middle of the described pressing plate, the upper end push pedal of the key of uncapping is inlaid in this square hole and can moves forward and backward along this square hole.

Can store five blades in the storage cutter groove of described upward handle of a knife.

Cutting knife of the present invention has simple in structure, automatically replaceable blade, advantage such as easy to use.

Description of drawings

Fig. 1 is a plan structure schematic diagram of the present invention;

Fig. 2 is a side-looking structural representation of the present invention;

Fig. 3 is a decomposition texture schematic diagram of the present invention;

Fig. 4 is the structural representation of the cutter lid among the present invention;

Fig. 5 is the structural representation of the key of uncapping among the present invention;

Fig. 6 is the structural representation of the pressing plate among the present invention.

The specific embodiment

Referring to Fig. 1 Fig. 2, Fig. 3, cutting knife of the present invention comprises handle of a knife 1, following handle of a knife 2, tool rest 3, blade 4, cutter lid 5, spring 6, uncap key 7 and pressing plate 8.Last handle of a knife 1 and following handle of a knife 2 be combined into an integral body handle of a knife, tool rest 3 is movably arranged on up and down between the handle of a knife, blade 4 is installed on the tool rest 3, tool rest 3 can drive blade 4 up and down between the handle of a knife slip blade stretched out or take in.

Cooperation is provided with a storage cutter groove 11 that is used to store blade 4 referring to Fig. 3 in the last handle of a knife 1, can deposit 5 blades in the storage cutter groove 11.Also be provided with a spring groove 12 in the rear end of last handle of a knife 1, spring groove 12 tops are provided with the step 13 that the key that is suitable for uncapping slides.

Tool rest 3 is arranged on the below that stores blade, during no blade, tool rest is withdrawn into the position of returning sword on tool rest, and the storage blade can be installed on the tool rest under the effect of cutter lid spring sheet 51 automatically.

Cooperation is referring to Fig. 4, and cutter lid 5 is movably connected on the handle of a knife 1.Bottom at cutter lid 5 is provided with spring leaf 51, and this spring leaf 51 is pressed on the blade that stores up in the cutter groove 11.Respectively be provided with one in the rear and front end of cutter lid 5 and be used for the

fixture block

52,53 that is movably connected with last handle of a knife 1, the opening and closing of cutter lid can be controlled in the top that makes the front end of the middle key plate 72 of the key of uncapping insert or withdraw from rear end fixture block 53 by the key 7 that promotes to uncap.

Spring 6 is arranged in the spring groove 12 of handle of a knife 1.

Cooperation is referring to Fig. 5, and the key 7 of uncapping is made of the upper end push pedal 71 that fuses, middle key plate 72 and lower end spring stop 73.71 one-tenth of push pedals are L shaped and be provided with the convenient hand propelled of using of coarse upper surface, key plate 72 is used to insert the top of the rear end fixture block 53 of cutter lid in the middle of being horizontally installed on, and spring stop 73 is used to stretch into the front end that is resisted against spring 6 in the spring groove 12 perpendicular to the below that key plate 72 is arranged on the key plate.The key 7 of uncapping is inlaid in by its middle key plate 72 on the step 13 of handle of a knife 1, and its upper end push pedal 71 is set in the square hole 81 of pressing plate 8.

Cooperation is referring to Fig. 6, and pressing plate 8 is connected on the handle of a knife 1 and is sealed on the top of spring groove 12.Be provided with a square hole 81 in the middle of pressing plate 8, the upper end push pedal 71 of the key of uncapping is inlaid in this square hole and can moves forward and backward along this square hole.

Claims

1. cutting knife, comprise the handle of a knife that combines by last handle of a knife and following handle of a knife, be movably arranged on the tool rest between the handle of a knife up and down and be installed in blade on the tool rest, tool rest can drive blade and blade is stretched out or take in sliding between the handle of a knife up and down, on last handle of a knife, be connected with the movable blade lid, it is characterized in that: described going up in the handle of a knife is provided with a storage cutter groove that is used to store blade, can deposit many blade in the storage cutter groove; Described cutter lid bottom is provided with spring leaf, and this spring leaf is pressed on the interior blade of storage cutter groove; Described tool rest is arranged on the below that stores blade, and during no blade, the storage blade can be installed on the tool rest under the effect of cutter lid spring sheet automatically on tool rest.

2. cutting knife as claimed in claim 1 is characterized in that: also comprise spring, uncap key and pressing plate; Described rear end of going up handle of a knife is provided with a spring groove, and the spring groove top is provided with the step that the key that is suitable for uncapping slides; Spring is arranged in the spring groove; The key of uncapping is inlaid on the step, and its upper end is set on the pressing plate, and the lower end is stretched in the spring groove and is resisted against the front end of spring; Pressing plate is connected on the handle of a knife and is sealed on the top of spring groove; The rear and front end of described cutter lid respectively is provided with one and is used for the fixture block that is movably connected with last handle of a knife, and the opening and closing of cutter lid can be controlled in the top that makes the front end of the key of uncapping insert or withdraw from the rear end fixture block of cutter lid by the key that promotes to uncap.

3. cutting knife as claimed in claim 2, it is characterized in that: the described key of uncapping is made of the upper end push pedal that fuses, middle key plate and lower end spring stop, push pedal becomes L shaped and is provided with the convenient hand propelled of using of coarse upper surface, the key plate is used to insert the fixture block top, rear end of cutter lid in the middle of being horizontally installed on, and the below that spring stop is arranged on the key plate perpendicular to the key plate is used to stretch in the spring groove and is resisted against the front end of spring.

4. cutting knife as claimed in claim 2 is characterized in that: be provided with a square hole in the middle of the described pressing plate, the upper end push pedal of the key of uncapping is inlaid in this square hole and can moves forward and backward along this square hole.

5. cutting knife as claimed in claim 1 is characterized in that: can store five blades in the storage cutter groove of described upward handle of a knife.