CN203427052U - Blade structure of kitchen cutter - Google Patents

Abstract

The utility model provides a blade structure of a kitchen cutter and aims at solving the problem that the existing stamping processing easily causes offset, high non-qualified rate, overlarge tolerance, accordingly follow-up grinding machining is increased and the like. The blade structure is provided with at least one cutting edge portion, one cutter back portion corresponding to the cutting edge portion and one combination portion combined with and wrapped by one grabbing handle, wherein the combination portion is provided with a first positioning hole, a second positioning hole and a plurality of fixing holes which are located on the same horizontal center line. The first positioning hole and the second positioning hole are respectively a round hole and a rectangular hole. Therefore, a double-point fixed blade is formed by utilizing the positioning holes, the purposes of stable positioning and accurate punching can be achieved, and the follow-up grinding machining cost is saved. In addition, the fixing holes can be also formed in the position close to the outmost edge of the combination portion, so that the grabbing handle is effectively prevented from being turned outward.

Description

The blade structure of knife for kitchen

Technical field

The utility model relates to a kind of blade, and espespecially a kind of punch process is more accurate fast, can solve because the excessive attrition process of misalignment tolerances is time-consuming and the blade technical field of and the problem such as easily turn up limited in conjunction with lever profile.

Technical background

Referring to Fig. 1 to Fig. 5, be at present the knife for kitchen structure of visible half coated combination on the market, is also that lever 20 Unitary injection formeds are coated by blade 10, and make knife back portion 11 expose handle of a knife 20 end faces with flush (seeing Fig. 1); Wherein, this blade 10 at least has knife back portion 11, blade part 12 corresponding with knife back portion 11, and one for the lever 20 coated joint portions 13 of one ejaculation type, this joint portion 13 (separately seeing that Fig. 3 dotted line H defines position) comprises connected section 131 and an extension 132 of forward being extended by knife back portion 11 that is positioned at blade part 12 rear ends, on this extension 132, provide a locating hole 14 and the several fixing holes 15 between locating hole 14 and 13 outers, joint portion, this locating hole 14 is circular hole again; Accordingly, this locating hole 14 and each fixing hole 15 can embed and be fixed in lever 20, so that this lever 20 is combined into a cutter with this blade 10.

Yet, during aforementioned existing blade punch process, refer to Fig. 4, the main first punching press basic profile of this blade 10 and this locating hole 14; Moreover this blade 10 by blade 10 fixed bits, then carries out each fixing hole 15 of punching press (seeing figure below of Fig. 4) with the location division X of these locating hole 14 its punching presses of contraposition clip; Yet the locating hole 14 of existing blade 10 is circular hole, and during punching only for single-point is fixed, on reality is implemented, have following disappearance and exist:

1. this blade 10 is fixed with single-point, easily produce skew, while causing each fixing hole 15 punching, be easily offset and (see Fig. 3, Fig. 4, blade tram 10 '), cannot rush and be located at position, correct hole, cannot position on same level center line Y, cause punching blade size to coincide with lever die size, disqualification rate is very high, even and if revise mould and also may cause because tolerance is excessive after the coated combination of blade 10 and lever 20 ejection formations, its knife back portion 11 cannot flush with lever 20 end faces, so that knife back portion 11 and lever 20 must remake follow-up edging processing, is its shortcoming one.

2. for attractive in appearance, general lever 20 can all grind whole surface, and quite time-consuming cost is high, and lever 20 only limits to again straight outward appearance (seeing Fig. 1), and the poor relative gripping of aesthetic property is also uncomfortable, is its shortcoming two.

3. another person, this lever 20 is necessary for wear-resisting, high temperature resistant (as POM bakelite) etc. and is not suitable for contacting unsafe engineering plastic material, thereby in attrition process process, can produce grinding dust and cause air pollution, and cutter uses upper can contact with food, security causes anxiety, and is its shortcoming four.

4. secondly, because existing blade 10 process are easily offset, cause each fixing hole 15 positions, hole not accurate (seeing Fig. 3, Fig. 4), for anti-punching process excursion is damaged and reduction disqualification rate, dealer directly moves the position, hole of fixing hole 15 conventionally toward in, cause between Kong Weiyu plastic handle 20 outers of each fixing hole 15 too thick (seeing Fig. 1, excessive apart from Z), so that lever 20 both sides plastic cement easily produce the generation of turning up, and are its shortcoming five.

Moreover, the tail end 16 of the joint portion 13 of existing blade is circular arc ending (seeing Fig. 2), even if thereby attrition process is also difficult to completely smooth, cause between the tail end 16 of joint portion 13 and lever 20 end faces and can have depression 21, seeping phenomenon easily occurring and cause blade 10 generation that gets rusty easily, is its shortcoming six.

Take a broad view of above-mentioned shortcoming, the real necessity that has improvement of existing blade, in view of this, the utility model designer constantly develops with great concentration and studies, and goes through permanent effort and overcomes extremely difficultly, finally designs the utility model.

Summary of the invention

Therefore, the first object of the present utility model, is providing a kind of blade structure with the fixing design of two point, and so blade, in each fixing hole punching processing, can reach the target that causes the accurate punching of strong fix.

The second object of the present utility model, is providing a kind of each fixing hole can be located near limiting edge position, lever outer, effectively avoids the generation of turning up of lever both sides plastic cement.

The 3rd object of the present utility model, providing a kind of blade and lever to penetrate when one-body molded, its blade is grinding knife back burr only, greatly save attrition process cost, and lever again can varied appearance, reach cause better aesthetic property and more the multi-efficiency such as comfortable grip promote.

The 4th object of the present utility model, is providing a kind of blade tail end and lever 40 to form vertical smooth coated, and tool is attractive in appearance can avoid again the ponding generation of getting rusty.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of blade structure of knife for kitchen, this blade and lever form half coated combination, this blade at least has a blade part, the knife back portion of one corresponding blade part and one supplies lever in conjunction with coated joint portion, this joint portion comprises connected section and an extension of being extended by knife back portion that is positioned at blade part rear end, it is characterized in that: this joint portion has one first locating hole, one second locating hole and be located at this first locating hole and this second locating hole and this outer, joint portion between several fixing holes, the two point that is beneficial to each fixing hole punching processing to be formed by this first locating hole and this second locating hole is located.

This first locating hole and this second locating hole are positioned on same level center line.

This first locating hole is a circular hole and is located on extension, and this second locating hole is a rectangular opening and is located on connected section.

This rectangular opening has two parallel long flat side and two minor faces, and this two minor face is circular arc.

These several fixing holes are located near limiting edge position, this outer, joint portion.

Be positioned at the fixed hole position of this first locating hole and top, this second locating hole position on same center line.

This joint portion tail end is right angle.

Compare the beneficial effect of prior art: because blade of the present utility model has two locating hole designs, so can form two point location fixed blade when punch process, just can reach blade without the more firm precisely object of punching of skew punching processing, so, just can avoid because of punching misalignment tolerances problems of too, make punching blade and lever mould tolerance be down to minimum, avoid follow-up attrition process, and each several fixing holes can be located at again the limiting edge position apart from blade outer, effectively prevent that lever from turning up, again can varied appearance promote attractive in appearance and grip the multi-efficiencies such as more comfortable.

Accompanying drawing explanation

Fig. 1 is that existing blade faces schematic diagram in conjunction with the plane of lever;

Fig. 2 is that existing blade tail end is that circular arc is combined with lever and is had depression enlarged diagram;

Fig. 3 is existing blade structure floor map;

Fig. 4 is existing blade punch process schematic diagram;

Fig. 5 is offset enlarged diagram after Fig. 4 punching;

Fig. 6 is that the utility model blade is in conjunction with the generalized section of lever;

Fig. 7 is the smooth combination enlarged diagram of the utility model blade tail end right angle and lever;

Fig. 8 is the utility model blade structure floor map;

Fig. 9 is the utility model blade punch process schematic diagram;

Figure 10 is the same center line enlarged diagram in each position, hole after Fig. 9 punching.

Description of reference numerals: 10-blade; 20-lever; 11-knife back portion; Blade part-12; 13-joint portion; 131-connected section; 14-locating hole; 15-fixing hole; 10-blade tram, X-location division; The correct horizontal center line of Y-position; 16-tail end; Z-thickness (distance); 30-blade; 40-lever; 31-blade part; 32-knife back portion; 34-joint portion; 341-connected section; 342-extension; 35-the first locating hole; The long flat side of 36-the second locating hole 361-; 362-minor face; 37-fixing hole; 38-tail end; A, B-location division; 21-depression; E, F-horizontal center line.

The specific embodiment

Refer to Fig. 6 to Figure 10, the utility model provides a kind of blade structure of knife for kitchen, this blade 30 forms half coated combination with lever 40, this blade 30 at least has the knife back portion 32 of blade part 31, an one corresponding blade part 31, and one for lever 40 in conjunction with coated joint portion 34 (seeing Fig. 6), wherein

Described joint portion 34 (seeing that Fig. 8 dotted line defines position D) comprises connected section 341 and an extension 342 of forward being extended by knife back portion 32 that is positioned at blade part 31 rear ends and forms, described joint portion 34 has corresponding knife back portion 32 and is positioned at one first locating hole 35 on same level center line E, one second locating hole 36, and be located at the several fixing holes 37 between this first locating hole 35 and this second locating hole 36 and 34 outers, this joint portion, wherein, this first locating hole 35 is a circular hole and is positioned on extension 342, this second locating hole 36 is a rectangular opening and is positioned on connected section 34, this rectangular opening has two parallel long flat side 361 and two minor faces 362 again, this two minor face 362 can be circular arc, and be positioned at the first locating hole 35 and the second locating hole 36 several fixing holes in top 37 are same level center line F, another person, ask for an interview Fig. 7, 8, joint portion 34 tail ends 38 of this blade 10 are right angle, accordingly, each locating hole 35,36 and each fixing hole 37 embed and are fixed in lever 40, so that this lever 40 is combined into a cutter with this blade 30.

Ask for an interview Fig. 9, during the moulding of the utility model blade punch process, the first basic profile of punching blade 30 and the first locating hole 35 and the second locating hole 36, this blade 30 relies on the first locating hole 35 and the second locating hole 36 to aim at clip punching press two location division A again, on B, forming according to this two point location fixedly positioning blade 30, in order to do each fixing hole 37 of punching press, just can reach the target of the upper accurate punching of same level center line F, tool is to improve blade size precision, make blade and die size tolerance be down to minimum, so, after follow-up coated ejaculation lever 40, this blade 30 and lever 40 can reach and cause precisely Overmolded target (seeing Fig. 6), so the utility model blade 30 is penetrated after moulding with lever 40 is coated, as long as knife back portion 32 burr are ground, and can solve the existing problems such as attrition process is time-consuming of causing because misalignment tolerances is excessive, be with, under lever 40 need not attrition process, lever 40 materials of the present utility model just can be used not wear-resisting security environmental-protecting material (as PP), and can avoid processing air pollution and food contact stain, use unsafe problems, and can change lever profile again, make the better comfortable grip sense of tool and meet demand attractive in appearance.

From the above, when the utility model carries out punching processing operation, can utilize the second locating hole 36 is a rectangular opening, the suitable tolerance nargin of tool, the first locating hole 35 and second locating hole 36 of blade 30 can be fixed or take out by the quick and convenient clip of aiming at punching press two location division A, B, and tool is with increase work efficiency (being shown in Fig. 9, Figure 10).

Secondly, the utility model blade 30 can strong fix during because of punching press, thereby each fixing hole 37 can be located near limiting edge position, 34 outers, joint portion and (see Fig. 6, distance C), so, after follow-up coated ejaculation lever 40, the plastic cement of lever 40 both sides just can not turn up phenomenon; Another person, each fixing hole 37 and knife back portion 32 also can be according to the arbitrary long flat side 362 of the rectangular opening of the second locating hole 36 as datum lines, and precisely define each fixing hole 37 and knife back portion 32 and precisely define its distance.

In addition, joint portion 34 tail ends 38 of blade 30 can be reprocessed formation right angle, and the right angle of tail end 38 can precisely define its distance for benchmark according to the rectangular opening minor face 362 of the second locating hole 36, again, during coated ejaculation, the tail end 38 of joint portion 34 is rectangular, just can form vertical smooth coated (seeing Fig. 7) with lever 40, so, then without ponding problem, produce.

To sum up explanation, when knowing that the really more existing structure of the utility model is better, and because being provided with two locating holes, the utility model blade can form two point locating effect when the punching press, solve accordingly the fixing easy misalignment tolerances problems of too of existing single-point, can punch process tolerance can be down to minimum, tool to be to improve punch process size precision, makes follow-up ejection formation processing more accurate and avoid follow-up attrition process.

More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skills understand, in the situation that do not depart from the spirit and scope that claim limits; can make many modifications, variation or equivalence, but within all falling into protection domain of the present utility model.

Claims (7)

1. the blade structure of a knife for kitchen, this blade and lever form half coated combination, this blade at least has a blade part, the knife back portion of one corresponding blade part and one supplies lever in conjunction with coated joint portion, this joint portion comprises connected section and an extension of being extended by knife back portion that is positioned at blade part rear end, it is characterized in that: this joint portion has one first locating hole, one second locating hole and be located at this first locating hole and this second locating hole and this outer, joint portion between several fixing holes, the two point that is beneficial to each fixing hole punching processing to be formed by this first locating hole and this second locating hole is located.

2. the blade structure of knife for kitchen as claimed in claim 1, is characterized in that, this first locating hole and this second locating hole are positioned on same level center line.

3. the blade structure of knife for kitchen as claimed in claim 2, is characterized in that, this first locating hole is a circular hole and is located on extension, and this second locating hole is a rectangular opening and is located on connected section.

4. the blade structure of knife for kitchen as claimed in claim 3, is characterized in that, this rectangular opening has two parallel long flat side and two minor faces, and this two minor face is circular arc.

5. the blade structure of knife for kitchen as claimed in claim 1, is characterized in that, these several fixing holes are located near limiting edge position, this outer, joint portion.

6. the blade structure of knife for kitchen as claimed in claim 1, is characterized in that, is positioned at the fixed hole position of this first locating hole and top, this second locating hole position on same center line.

7. the blade structure of the knife for kitchen as described in any one in claim 1 to 6, is characterized in that, this joint portion tail end is right angle.

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