CN2123407U

CN2123407U - Automatic open and close fruit knife

Info

Publication number: CN2123407U
Application number: CN 90203492
Authority: CN
Inventors: 汪多智
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-24
Filing date: 1990-03-24
Publication date: 1992-12-02

Abstract

The utility model relates to an automatic open and close fruit knife of which a whole body forms a double-edged sword shape, wherein the surface of the knife can be automatically opened and closed. A user holds and forwards pushes a knife handle, and then, the knife can be automatically sprung up to be clamped when the handle is manually supported to a front dead point; when the handle is pulled backwards and is manually supported to a back dead point, the knife can be automatically sprung back into the handle to be clamped. When the surface of the knife is sprung up, the knife which encounters resistance can be automatically out of action; after the surface of the knife is restored, the knife can be continuously used. The automatic open and close fruit knife has the function of automatically opening and closing the surface of the knife in a small volume, and prevents open force to the surface of the knife from being excessive. The utility model has the advantages of standard fabrication process, shapely configuration, proper size and low cost, and is easy to be widely used.

Description

Automatic open and close fruit knife

Novel---the automatic switch fruit knife, can realize the automatic ejection of knife face, can realize the automatic withdrawal of knife face again, global shape is double-edged sword shape, and handle of a knife is salmon pink or blackish green, and knife face is stainless.

The utility model relates to a kind of in narrow volume, realizes the reciprocating motion of knife face, and can make knife face in mechanism that two not-go-end cards are speeded.

Mostly existing fruit knife is that outer power slowly opens, or can only open automatically, and can not close automatically.The cutter that has elastic force when opening automatically is excessive, has injury when the contact human body, and the complicated cost height of process industry, should not extensively adopt.

The purpose of this utility model is the method that will provide such: in narrow volume, realize the automatic folding function of knife face, and prevent that the knife face tensile force is excessive.The manufacturing process standardization, good looking appearance is of moderate size, and cost is low, is suitable for extensive employing.Concrete structure and is described as follows as shown in drawings:

It is 1:1 that accompanying drawing adopts engineer's scale, and uppermost view is a front view.Be the true form after knife face ejects automatically, also can reflect the face shaping after knife face is all withdrawn handle of a knife.Medial view is a vertical view, and presses the stagewise cutaway view of the A-A direction shown in figure below.Lower view is the cutaway view of the B-B shown in the medial view.

This novel lower handle of a knife (5) that comprises, by the allumen die cast. The centre has the elongated slot of 5 mm wides, 4 millimeters deep, can be free to slide vertically after a movable plate (2) is put into. Packing in movable plate one, to draw spring (11), this spring be to be turned to by 0.5 millimeter thick spring wire of φ. Both ends of the spring respectively riveting has two little iron plates, and a little pulls open with spring, is stuck in the movable plate. Little iron plate need exceed 1 millimeter of movable plate, in order to block rivet or knife face rear end on the knife face (6). Have again the groove of 2 mm wides, 3 millimeters deep at the two ends, both sides of lower knife plate, two active cards (9) are put into respectively groove, respectively fixing by two little axles (1), but active card must be up and down. For making active card be in lower not-go-end position when the static state, there are two little pressing springs (10) to pack in the groove, be stuck on the activity template. Upper handle of a knife (7) Also by the allumen die cast. Have below a groove, with knife face with wide stack pile, can limit and guarantee that knife face (6) is free to slide in groove. Upper handle of a knife assembles rear riveted, chrome-faced by rivet (12) with relevant other part with lower handle of a knife. Be glued respectively handle lid (8) and lower handle lid (4) on upper handle of a knife and the lower handle. Manually a groove in the middle of the holder (3) snaps in movable plate and exposes part. Upper handle lid (8), lower handle lid (4), manually holder (3) all is plastic products, injection mo(u)lding.

During use, hold handle of a knife, promote manually holder (3) with thumb, when promoting forward, because the active card (9) of back, be stuck in the square hole at knife face rear portion, cutter can not be preceding moving, by movable plate (2) spring (11) is drawn back and to make spring (11) store elastic force, when will manually asking (3) when shifting top dead centre onto, the dogleg section at template rear portion, the back card is pressed in down the square hole that leaves cutter, spring (11) discharges elastic force, knife face (6) is ejected, bullet to foremost the time before the card rear end of blocking knife face.Can use.If when making knife face return in the handle of a knife, as long as will manually ask (3) to pulling back, because rivet blocks spring on the cutter, template (2) draws back spring (11), makes spring (11) store elastic force, when manual holder is moved the back not-go-end to together with template, compressing tablet before the template is depressed preceding card, leaves the rear end of cutter, make spring (11) discharge elastic force, cutter (6) is rebounded in the handle of a knife.When cutter bullet during to the rear end, back card snaps in the square hole of cutter under the effect of spring (10).Cutter is blocked in handle of a knife.So just realized the automatic ejection of knife face and sprung into.

Because the spring wire of spring (11) has only 0.5 millimeter of φ thick, spring force is only enough to eject cutter, so run into resistance slightly when cutter, just can not be bound to not-go-end, ineffective.Have only cutter is pulled to before behind the not-go-end, can restore funcitons.

The embodiment of concrete member is as follows:

1, global shape is double-edged sword shape, is of moderate size.

2, go up handle lid (4) handle lid (7) and manually to hold in the palm (3) be that engineering plastics (polyethylene) goods can be made three injection molds respectively down, use the injection machine injection mo(u)lding.

3, upward the material of handle of a knife (5) and following handle of a knife (7) is the casting zinc-aluminium, can make two moulds, polishes chromium plating behind die casting or the moulding by casting.

4, active card (9) is by quenching behind the cold-punching mould stamping-out, and movable plate (2) makes with plate forming through the cold-punching mould bending die.

5, the assembling riveted went out finished product after spring (11) (10) stainless steel knife face (6) was made.

6, the English (AUTOMATIC) that covers of handle is translated into automatically.

Claims

A kind of fruit knife, integral body is double-edged sword shape, be of moderate size, it is characterized in that in narrow volume, knife face folding automatically, this device has in the movable plate (2), the small-sized spring (11) that draws of packing into, can press the active card (9) that has pressing spring (10) thereafter respectively, spring (11) can drawn back when promoting movable plate (2), again active card depressed.