CN201154488Y

CN201154488Y - Novel paper knife

Info

Publication number: CN201154488Y
Application number: CNU2008200438317U
Authority: CN
Inventors: 冯惠芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-01-31
Filing date: 2008-01-31
Publication date: 2008-11-26
Anticipated expiration: 2018-01-31

Abstract

The utility model discloses a novel paper cutter which comprises a cutter handle, a cutter box and a cutter blade, the back of the cutter blade is provided with a concave part. The cutter box is movably connected with the cutter handle through an elastic cutter bottom frame and a mother-child nail; the cutter blade is arranged inside a groove positioned in the cutter box, and the cutter box is internally provided with a lever-typed and key-shaped locking sheet; the front end of the locking sheet is provided with locking teeth which is blocked in the concave part of the cutter blade and the tail end of the locking sheet is equipped with projected posts which extend in the direction opposite to the extending direction of the locking teeth and are provided with slanted surface; also a sliding block with slanted surface is provided and the slanted surface of the sliding block and the slanted surface of the projected post match with each other. The novel paper cutter of the utility model has the advantages that the locking sheet is well concealed inside the cutter box and the operation is convenient.

Description

A kind of novel paper knife

Technical field

The utility model belongs to five metals cutter field, more particularly, relates in particular to a kind of novel paper knife.

Background technology

Paper knife is a cutting tool relatively more commonly used, generally is used for the cutting of paper, cloth, plastic or other material.Now the paper knife of selling on the market generally is made up of blade, cutter box and handle of a knife, blade is positioned in the cutter box and can changes, the used blade of this class paper knife generally is that two ends are all available, and convenient in order to change blade, this class paper knife generally need be provided with latch-up structure.

Summary of the invention

The purpose of this utility model provides a kind of latch-up structure that has, and latch-up structure simple, rational novel paper knife is set.

The utility model is realized by following scheme:

The utility model is a kind of novel paper knife, comprise that there is the blade of recess at handle of a knife, cutter box and back, the cutter box is by bone at the bottom of the cutter elastic force and master and slave dowel and handle of a knife flexible connection, blade places in the set groove position of cutter box, be provided with lever spoon shape locking plate in the described cutter box, the locking plate front end is provided with the lock tooth that snaps in the blade recess, the projection on the band inclined-plane that the end setting of locking plate is opposite with lock tooth bearing of trend, being fitted with the slide block on a band inclined-plane simultaneously, works in coordination in the inclined-plane of slide block and the inclined-plane of projection.

The end of above-mentioned locking plate is connected with spring, and the other end of spring and slide block are conflicted;

Above-mentioned slide block is connected with catch bar, and catch bar extends in the cutter box outside the cutter box side.

The beneficial effects of the utility model are, locking plate well is hidden in the cutter box, and it is easy to operate, can promote slide block movement by the push rod that promotes to be exposed to, thereby the inclined-plane of slide block and the inclined-plane of locking plate are replaced the end that makes locking plate mutually and are rotated the front end that makes locking plate and upwards rotate to drive and lock tooth and leave blade recess realization release cutter box the side outside.

Description of drawings

Fig. 1 is an internal structure schematic diagram of the present utility model;

Fig. 2 is the overall structure schematic diagram of the utility model outside;

Fig. 3 is the structure for amplifying schematic diagram of the utility model locking plate and slide block combination.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail.

As shown in the figure, the utility model is a kind of novel paper knife, comprise that there is the blade 1 of recess at handle of a knife 3, cutter box 2 and back, cutter box 2 flexibly connects with handle of a knife 3 by bone 8 at the bottom of the cutter elastic force and master and slave dowel 9, blade 1 places in the set groove position of cutter box 2, be provided with lever spoon shape locking plate 4 in the described cutter box 2, locking plate 4 front ends are provided with the lock tooth 41 that snaps in blade 1 recess, the projection 42 on the band inclined-plane that the end setting of locking plate 4 is opposite with lock tooth 41 bearing of trends, being fitted with the slide block 5 on a band inclined-plane simultaneously, works in coordination in the inclined-plane of the inclined-plane of slide block 5 and projection 42.

In order to make slide block 5 have automatically reset function, be connected with spring 6 at the end of locking plate 4, the other end of spring 6 and slide block 5 are conflicted; In order to drive slide block 5 motions outside cutter box 2, slide block 5 is connected with catch bar 7 simultaneously, and catch bar 7 extends in cutter box 2 outside cutter box 2 sides.

Operation principle of the present utility model is, two inclined-planes that utilize slide block 5 and locking plate 4 ends to match, convert the horizontal movement of slide block 5 to locking plate 4 ends move both vertically, realize the lever motion of locking plate 4, thereby make the front end lock tooth 41 disengaging blades 1 recess realization release of locking plate 4 change blade.

Claims

1. novel paper knife, comprise handle of a knife (3), there is the blade (1) of recess at cutter box (2) and back, cutter box (2) flexibly connects with handle of a knife (3) by bone (8) at the bottom of the cutter elastic force and master and slave dowel (9), blade (1) places in the set groove position of cutter box (2), it is characterized in that: be provided with lever spoon shape locking plate (4) in the described cutter box (2), locking plate (4) front end is provided with the lock tooth (41) that snaps in blade (1) recess, the projection (42) on the band inclined-plane that the end setting of locking plate (4) is opposite with lock tooth (41) bearing of trend, being fitted with the slide block (5) on a band inclined-plane simultaneously, works in coordination in the inclined-plane of the inclined-plane of slide block (5) and projection (42).

2. novel paper knife according to claim 1 is characterized in that: the end of described locking plate (4) is connected with spring (6), and the other end of spring (6) and slide block (5) are conflicted.

3. novel paper knife according to claim 1 is characterized in that: described slide block (5) is connected with catch bar (7), and catch bar (7) extends in cutter box (2) outside cutter box (2) side.