CN201500985U

CN201500985U - Key-withdrawal cutter

Info

Publication number: CN201500985U
Application number: CN200920208724XU
Authority: CN
Inventors: 温昊
Original assignee: Shanghai Kunjie Hardware Tool Co Ltd
Current assignee: Shanghai Kunjie Hardware Tool Co Ltd
Priority date: 2009-08-31
Filing date: 2009-08-31
Publication date: 2010-06-09
Anticipated expiration: 2019-08-31

Abstract

The utility model provides a key-withdrawal cutter. The key-withdrawal cutter comprises a cutter body consisting of a left cutter body and a right cutter body, a cutter rest, a blade, a withdrawal key and a key spring, wherein the withdrawal key and the key spring are combined with each other and then movably mounted on the left cutter body to pass through the left cutter body to butt against the cutter rest ; the cutter rest includes a left cutter rest and a right cutter rest, wherein the left cutter rest and the right cutter rest are connected into a whole through a rivet at the rear part; a blade groove is formed on the front part of the combination of the left cutter rest and the right cutter rest; the right cutter rest is made of an elastic metal sheet; a bump used for being engaged and clamped with an original slot on the blade is arranged at the front part of the right cutter rest; and the right cutter rest can be pushed to move backwards by pressing the withdrawal key so that the bump on the right cutter rest is separated from the slot on the blade, thereby releasing the blade. The key-withdrawal cutter can realize the locking and the releasing by pressing the key from the side surface, which is different from the conventional blade locking and releasing manner, and has the advantages of flexible structure, and convenient and quick operation.

Description

Button withdrawing formula cutting knife

Technical field

The utility model relates to a kind of hand-held tool, relates in particular to a kind of button withdrawing formula cutting knife.

Background technology

Traditional cutting knife is divided into fixed, collapsible and telescopic usually, generally is used for cutting paper, cloth, leather etc.Telescopic cutting knife generally is to utilize to push the blade that button push promotes to be hidden in the cutter hub and stretch out, but blade stretches out before and after stretching out, often can not all form locking, and it is too loaded down with trivial details perhaps to lock release mechanism, and operation is inconvenient.Traditional blade locking mechanism operated by rotary motion reaches the release effect by swing pinion backward on handle of a knife, unclamp backgear and automatically lock blade under the effect of return spring.

The utility model content

The purpose of this utility model is exactly in order to provide a kind of button withdrawing formula cutting knife of new structure.

In order to achieve the above object, the utility model has adopted following technical scheme: a kind of button withdrawing formula cutting knife, the knife rest that comprises the cutter hub that combined by left cutter hub and right cutter hub, is clipped in the middle of the cutter hub and can slides along cutter hub and be inlaid in blade on the knife rest; Be characterized in, also comprise the withdrawing button and by key spring, withdrawing button and button spring assembly are movably arranged on the left cutter hub together and pass left cutter hub and be pressed on the knife rest; Described knife rest comprises left knife rest and right knife rest, left side knife rest and right knife rest connect to form integral body and are provided with insert groove in its front portion by the riveted at its rear portion, right knife rest is made by elastic sheet metal, its front portion be provided be used for blade on the projection of intrinsic draw-in groove interlock screens, promote to move behind the right knife rest by pushing the withdrawing button, can make the intrinsic draw-in groove on the projection disengaging blade on it, thereby blade is emitted.

Described withdrawing button comprises a cylindrical keycap and is connected two key levers of keycap the inner; Described left cutter hub is provided with a circular groove, this groove two square holes that extended internally; The cylindrical keycap of described withdrawing button is inlaid in the above-mentioned groove, and two key levers of withdrawing button pass and are pressed on the right knife rest from above-mentioned two square holes; Be arranged on by key spring between two key levers of withdrawing button, one end and keycap are fixedly linked, and the bottom land of the other end and groove is fixedly linked.

The utility model button withdrawing formula cutting knife has changed traditional blade locking release mode, adopts the locking and unlocking of pressing keys realization from the side, and structure is flexible, and is convenient to operation.

Description of drawings

Fig. 1 is a perspective view of the present utility model;

Fig. 2, Fig. 3 are decomposition texture schematic diagrames of the present utility model.

The specific embodiment

Referring to Fig. 1, Fig. 2, Fig. 3, button withdrawing formula cutting knife of the present utility model, the knife rest 3 that comprises the cutter hub that combined by left cutter hub 1 and right cutter hub 2, is clipped in the middle of the cutter hub and can slides along cutter hub and be inlaid in blade 4 on the knife rest also comprises withdrawing button 5 and by key spring 6.Withdrawing button 5 and combine to be movably arranged on the left cutter hub 1 and to pass left cutter hub by key spring 6 and be pressed on the knife rest 3.Knife rest 3 comprises left knife rest 31 and right knife rest 32, left side knife rest and right knife rest connect to form integral body and are provided with insert groove 33 in its front portion by the riveted at its rear portion, right knife rest is made by elastic sheet metal, its front portion be provided be used for blade 4 on the projection 321 of intrinsic draw-in groove 41 interlock screens, promote to move behind the right knife rest 32 by pushing withdrawing button 5, the intrinsic draw-in groove 41 that projection 321 on it is broken away from the blade, thus blade is emitted.

Withdrawing button 5 in the utility model comprises a cylindrical keycap 51 and is connected two key levers 52 of keycap the inner.On left cutter hub 1, be provided with a circular groove 11, this groove two square holes (not shown come out) that extended internally.The cylindrical keycap 51 of withdrawing button 5 is inlaid in the above-mentioned groove 11, and two key levers 52 of withdrawing button pass and are pressed on the right knife rest 32 from above-mentioned two square holes.Be arranged on by key spring 6 between two key levers of withdrawing button, one end and keycap 51 are fixedly linked, and the bottom land of the other end and groove 11 is fixedly linked.

But operation principle accompanying drawings of the present utility model is as follows:

When pressing withdrawing button 5 when press...withing one's finger, two key levers 52 on the withdrawing button 5 are pressed on the front portion of right knife rest 32, and promote right knife rest 32 and retreat, thus the intrinsic draw-in groove 41 that the projection 321 on it is broken away from the blade, blade can easily be taken out, or set up new blade again.After finger unclamped, withdrawing button 5 rebounded under the effect by key spring 6.If any blade, then be locked.

Claims

1. button withdrawing formula cutting knife, the knife rest that comprises the cutter hub that combines by left cutter hub and right cutter hub, is clipped in the middle of the cutter hub and can slides along cutter hub and be inlaid in blade on the knife rest; It is characterized in that: also comprise the withdrawing button and by key spring, withdrawing button and button spring assembly are movably arranged on the left cutter hub together and pass left cutter hub and be pressed on the knife rest; Described knife rest comprises left knife rest and right knife rest, left side knife rest and right knife rest connect to form integral body and are provided with insert groove in its front portion by the riveted at its rear portion, right knife rest is made by elastic sheet metal, its front portion be provided be used for blade on the projection of intrinsic draw-in groove interlock screens, promote to move behind the right knife rest by pushing the withdrawing button, can make the intrinsic draw-in groove on the projection disengaging blade on it, thereby blade is emitted.

2. button withdrawing formula cutting knife as claimed in claim 1 is characterized in that: described withdrawing button comprises a cylindrical keycap and is connected two key levers of keycap the inner; Described left cutter hub is provided with a circular groove, this groove two square holes that extended internally; The cylindrical keycap of described withdrawing button is inlaid in the above-mentioned groove, and two key levers of withdrawing button pass and are pressed on the right knife rest from above-mentioned two square holes; Be arranged on by key spring between two key levers of withdrawing button, one end and keycap are fixedly linked, and the bottom land of the other end and groove is fixedly linked.