CN2891677Y

CN2891677Y - Shellfish-opening tool

Info

Publication number: CN2891677Y
Application number: CN 200520011896
Authority: CN
Inventors: 约瑟夫·福利维奥
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-30
Filing date: 2005-08-30
Publication date: 2007-04-25
Anticipated expiration: 2015-08-30

Abstract

A shellfish opening tool comprises a base; a longitudinal recess groove is arranged on the surface of the base, the recess groove is assembled to be the bottom for holding the shellfish. An upper surface of the base is provided with a supporting component, a first end of a lever arm is pivotally installed on the supporting component. A second end of the lever arm is formed to be a handle that is suitable for the pivotal rotation of the first end along with the supporting component. A blade is communicated to the lower surface of the lever arm and kept at the same level to the recess grooves. The front shellfish supporting component is stretched out of the upper surface of the base close to the recess groove and is provided with a recessing part that is correspondent to the recess groove and is assembled to be the edge for holding the shellfish. The handle is appropriate to accept the downward force applied on the handle to drive the blade to move forward to the recess groove and recessing part, thereby opening the shellfish.

Description

Seashell opening tool

Technical field

The utility model relates to a kind of manual shellfish for example clam, oyster, scallop and other molluscan device opened.

Background technology

Shellfish, for example oyster and clam are difficult to open.When opening with cutter or stripping clam or oyster, must apply sizable power, the people is easily by the cutter injury of accidentally dropping like this.Especially the moisture on elliptical shape of clam and the shell sheet makes that clam is difficult to firmly be caught when attempting to promote blade and entering between two shells.Further, clam is unlocked when survival usually, therefore can resist the power that the sheller pries open shell.In other words, shellfish carried out " fight " of a fierceness usually before separated opening.Propose various devices, be used to alleviate manual difficulty of opening shellfish.

Authorize the U.S. Patent No. 4,069,552 that the name of Priggs is called " shellfish opener " and disclose the paired part of holding with a firm grip staggered relatively, be used to admit user's both hands, a mobilizable blade is placed in the middle of the paired part of holding with a firm grip.Blade is fixed on two mobilizable frameworks of holding with a firm grip between the part, and this device comprises a spring bias voltage blade guider movable on framework.Shellfish is placed between the support section and blade of framework, and the user presses the part of holding with a firm grip, forces blade to enter between crack between the shell.Though use this instrument obviously than Dehulling cutter safety, when the user presses down when riving shellfish with two hands, this instrument still tends to torsiversion malposition.Therefore, stripping when being difficult to the clam of opening and oyster, this instrument can not provide enough securities famously.

Authorize the U.S. Patent No. 4,590,644 that the name of Maniscalco is called " opening of clam " and disclose a kind of fulcrum and leverage tool of opening shellfish.Lever pivotly be installed in base on vertical supporter be connected.Lever comprises a blade section, and it aligns with a pair of spring-loaded shellfish fixator that is connected with base.Yet aspect under the blade of qualification shellfish at lever, this shellfish fixator built on the sand.Therefore, shellfish skids off from instrument easily when the user attempts to open shellfish, and can cause injury.

Authorizing U.S. Patent No. 5,288,263 that the name of Ayala is called " device that is used to open shellfish or analog " discloses another and has been used to open fulcrum and the leverage tool of shellfish.Yet, on the arm that the blade of this instrument is installed in supporter below the lever is connected.When the user applied downward power on lever, lever served as the top of hammer and striking arm, and this orders about blade and enters between the crack of shellfish.Owing to be not that constant force is applied on the shell, this hammer force is ineffective.On the contrary, the sudden surge that hammer action causes can cause shellfish cracked, rather than in two.

The U.S. Patent No. 5,482,500 that the name of authorizing Boettner etc. is called " clam and oyster are opened " discloses the base plate with the support slot that is used to lay and support shellfish.A lever arm is pivotably mounted on the base plate, and comprises a joint blade that is fixed on the lever arm, places this blade and is used for engaging with the shellfish that is positioned at support slot.Yet this instrument is incomplete, only is the V-type groove because support, and it can not prevent the mobile forward or backward or overturning of shellfish when lever is applied downward power.Therefore, unwanted moving easily takes place in shellfish when placing the V-type groove.

Authorizing U.S. Patent No. 6,244,948 that the name of LiRosi is called " Seashell opening tool and method " discloses one and has been used to the rotatable handle that supports the base of shellfish and be installed in base.A drift, for example a mooching knife is fixedly mounted on the rack pinion power transmission shaft, and this axle is installed on the rotatable handle.In operation, the user is placed on shellfish on the base below the drift, rotates rotatable handle, thereby on driving shaft and the blade crack down to shellfish.Though this instrument only is to open shellfish by several circles of handler, this instrument is made expensive.Further, compare with the level type instrument with fulcrum, this device can not be opened a large amount of shellfishes fast, and this is that blade must constantly be adjusted highly when being placed on the base because of every next new shellfish.

The name of authorizing Allievi is called the U.S. Patent No. 6 of " clam and oyster are opened ", 785,967 disclose a kind of handheld tool, lower support element and counterpart with the bending that is used to lay the shellfish bottom, blade is connected on the counterpart, wherein, lower support element and counterpart at one end are pivotally connected to one another.This instrument is operated as the carpenter's pincers of a routine, and wherein shellfish is placed on below the blade between two counterpart in the sweep.The user is pinched together with the shellfish of riving with the opposite end of counterpart.The effect of this instrument and function are subject to the strength of compression tool two ends with the people of forced opening shellfish.Further, because instrument is held by handgrip fully, in a single day shell is rived, and clam body and liquid content are tended to drop out or splash in shell, and this is undesirable.

The utility model content

Therefore, this area need a kind of apparatus and method with safety, rapidly, convenient and economic mode opens shellfish, and do not allow the user come to harm.

Therefore the purpose of this utility model is, provides a kind of mode with safety the manual for example device of clam of shellfish of opening.

Another one purpose of the present utility model is to provide the device of a kind of rapid unlatching shellfish, convenient and easy use of this device.

The utility model also has the another one purpose to be, a kind of economic device of making is provided, and is firm in structure, do not need other maintenance except cleaning.

Above-mentioned purpose and other advantage described herein realize that by Seashell opening tool of the present utility model this opens the base that comprises a general planar, and this base has the longitudinal fluting that is formed on upper surface, holds bottom or the marginal portion of shellfish.Fulcrum support member is positioned at the upper surface of base and near an end of groove, lever arm that possesses first end pivotly with support engages.Second end of lever arm forms a handle, is used for allowing the user rotate first end around support member.

A blade is connected with the lower surface of lever arm, and aligns with groove in the base.Vertical shell support member is fixedly mounted on the base, and axially aligns with the groove in the base.The shell support member has the recessed portion that aligns with groove, and the size of recessed portion is fit to hold the forward edge that is in the shellfish when waiting to open the position.Handle is suitable for transmitting the manual downward power that applies, and drive blade and enter between the shell sheet, and in the recessed portion of the groove that the lower support of shell forms on base.Vertical support member prevent clam be subjected to the taper blade power and to front slide, thereby the user needn't the clamping shell after the seam between blade and the shell sheet alignment.

With respect to the Seashell opening tool of prior art, Seashell opening tool of the present utility model has been promoted user's safety, and is improving efficient aspect speed and the continuity.

Description of drawings

Instruction of the present utility model can be considered following detailed and understanding easily in conjunction with the drawings, wherein:

Fig. 1 is according to the top of Seashell opening tool of the present utility model and side perspective view;

Fig. 2 is the lateral elevational view of Fig. 1;

Fig. 2 a is the lateral elevational view according to the Seashell opening tool of another one embodiment of the present utility model;

Fig. 3 is the top view of Fig. 1;

Fig. 4 is the sectional view along the Seashell opening tool of Fig. 2 center line 4-4 ';

Fig. 4 a be along the sectional view of the Seashell opening tool of the line 4a-4a ' of Fig. 2 a and

Fig. 5 a-5c is the simple signal precedence diagram of the operating position of Seashell opening tool, has illustrated the using method of Seashell opening tool of Fig. 1.

In order to promote, in the time of suitable, used identical Reference numeral to represent same or analogous element total in the accompanying drawing to understanding of the present utility model.Except as otherwise noted, feature and the not to scale (NTS) describing in the drawings and show are drawn the just purpose demonstration in order to explain.

Though the utility model is the description of opening according to clam, one skilled in the art will recognize that the utility model also can be used to open the shellfish of other type, for example oyster, scallop etc.

The specific embodiment

Clam open the lever arm that in its supporting structure, comprises a base, at least one support member and a supporting blade.Described at least one support member is connected with base, and lever is connected on described at least one support member pivotly, so that fulcrum and lever motion to be provided, to be used for applying power by blade and to open shellfish.

With reference to Fig. 1, opening of clam 10 comprises base 11, has the lever arm 12 of handle 20, a pair of fulcrum support member 13a, 13b is used to engage the vertical shell support member 14 of shell leading edge, and blade 15 is formed on the groove 16 on the base, spring 17, the pin 18 of pivot arm and spring catch 19.Base 11 is preferably rectangle, and in one embodiment, groove 16 vertically forms along the upper surface of base 11.Fulcrum support member 13a, 13b extends upward from the first end section of base 11.

Base 11 and support member 13 can be by the corrosion resistant metal manufacturings, for example aluminium or stainless steel, perhaps by plastics or polymeric material manufacturing, for example nylon, polyethylene and other polymer and copolymer mixture, be sometimes referred to as engineering polymers, and other material firm, corrosion-resistant, rust-proofing.Support member 13 can be connected on the base 11 by securing member or welding, and perhaps base and support member can be by injection mouldings, perhaps from one more the polymer of bulk process desirable profile and form an integral unit.

Fulcrum support member 13a, 13b is separated out, with first end that holds lever arm 12 from extending through therebetween.Axially-aligned holes is formed on this to fulcrum support member 13a, and among the 13b, and size is fit to hold pivot pin 18.First end of lever arm 12 comprises that also size is fit to hold the hole of pivot pin 18.Pivot pin 18 extends through vertical support member and lever arm 12, and allows lever arm 12 freely to pivot as fulcrum.

Lever arm 12 further comprises one as relative (second) of handle 20 end, and by this handle 20, the user can shift lever arm 12, and it is moved up and down with respect to pivot arm pin 18.Blade 15 is installed in the lower surface of lever arm 12, aligns with groove 16.First end of lever arm 12 is connected with the upper surface of base 11 by the backspring 17 that closes on vertical support member 13 settings.Handle 20 forms an end of levers, to such an extent as to the user applies downward power by hand lever arm 12 is rotated around the pivot pin 18 that extends through support member 13, thereby by bottom knife 15 and be between the shellfish crack.The side that blade 15 is restrained is significantly fully separated shell with permanent unlatching shellfish.

With reference to Fig. 4, in one embodiment, blade 15 is the semicircles with inclined-plane or wedge side wall 54 and sharp edge of a knife 50.For example machine screw 60 of securing member is passed through on the smooth surface of the horizontal formation of sidewall, is connected on the lower surface of lever arm 12.For example, lower surface or the opposite side that a flange is installed to blade lever arm 12 can be set.

With reference to Fig. 2 a and 4a, in an interchangeable embodiment, blade 15 is circular, and is installed on the lower surface of lever arm 12 by the pin 42 that extends through hole 52, and hole 52 is in the relative sidewall 46 of wheel and lever arm 12.Circular shear blade rotates around pin, and becomes sharp around whole circumference 50.By this way, separately/cutting operation in, can use the different piece of circular shear blade, thereby before blade 15 is sharpened once more or changed, prolong the life-span.In arbitrary embodiment, blade 15 can be the inclined-plane or wedge shape, make that circumference has sharp edges down, can be to cutting or riving shell into two.When blade 15 reduced, the inclined-plane of blade 15 or the sidewall of wedge shape were separated from each other two shells.

In another embodiment, (not shown), blade 50 is straight, and has the sharp longitudinal edge and the wedge-shaped cross-section of aliging with groove 16, to similar shown in the bottom of blade among Fig. 4 a.Also can use other shape, comprise concave edge.

In a preferred embodiment, the width of blade is about 2.5 centimetres, or 1 inch.Circular or semicircle blade diameter can be about 10 centimetres, perhaps 4 inches.

Though the be to use blade or the wedge shape contact device of the utility model discussion come the separately shell sheet of clam, one skilled in the art will recognize that the contact device that can utilize other shape.For example, if want to smash shell rather than along the seam rive, can use blunt tip.

Groove 16 preferred disposition in the base are for to hold and stable clam and oyster on vertical orientated.As known to persons of ordinary skill in the art, the shell shaped of clam and oyster is different, uses the utility model to open clam and has adopted different technology with oyster.The shell of clam is supported by the bottom bound fraction, thereby the shape of groove is the wide region that receives this part.The seam that oyster does not have rule, suitably limits between the shell part of the closure on bound fraction opposite.Therefore the oyster bound fraction is upwards placed towards blade, and the narrow part that prolongation is set on groove is held the marginal portion on oyster bound fraction opposite.In a preferred embodiment, groove is configured to hold clam and oyster shell, extends narrow relatively part from wider portion.

In an alternate embodiments, can be provided with a kind of groove that can only hold in clam and the oyster on the base 12.Therefore, at the restaurant or open in the commercial pursuit station when being used to only open a kind of shellfish, it is favourable using this technical configuration.

In open operation, groove 16 makes shellfish keep vertical and places.In one embodiment, groove 16 is avette substantially, and extends certain distance to hold the bottom sides fate of shellfish, and there closed shell flesh connects together two shells.Blade 15 is installed on the lower surface of lever arm 12, so that blade is positioned at groove 16 tops and aligns with it.

Vertical shell support member 14, is stretched from the upper surface of base 11 between 13b and the groove 16 at fulcrum support member 13a.In one embodiment, support member 14 has near the rear portion that is formed on the support member 13, and the height that stretches out of support member 14 is lower than the height of pivot arm pin 18.By this way, 14 least interference of lever arm 12 and support member or glitch-free rising or reduction.Support member 14 can be used and base 11 identical materials are made, and can be with securing member or Unitarily molded with base and other support member, and perhaps other form connects.

Shell support member 14 comprises a shell contact portion, and this shell contact portion has the vertical recessed groove of placing clam or oyster.When the vertical recessed portion among Fig. 1-3 is U-shaped substantially, one skilled in the art will recognize that and to select to use the V-arrangement fixator, and other shape meets the fixator of shellfish shape substantially.The recessed portion of support member 14 provides extra support along the leading edge of shellfish, also prevented shellfish under the power effect of blade to advancing slip.

With reference to Fig. 3 and 4, a pair of slip side bracket 30 can provide extra support and safe covering, each side bracket 30 comprises base flange 32, mobile side supports wall 34, and the biasing spring 36 that extends between base flange 32 and mobile side supports wall 34.Base flange 32 can be used with base 11 identical materials and make, and is connected with securing member with support member with base, perhaps whole formation the by injection moulding.

Side supports wall 34 is configured to hold the side of shellfish, can also comprise that a recessed surface 38 is fit to and further supports the side of shellfish.Supporting walls 34 can adopt with discussed above about base 11, and vertical support member 13 is made with the similar material of support member 14.

Compression spring 36 is placed vertically between base flange 32 and side supporting walls 34, forces two supporting walls 34 to draw close mutually.Shellfish is pushed position between the supporting walls 34, compressing spring.A vertical lead 40 is provided between base flange 32 and side supports wall 34 at least, aligned with each other to keep them.

First end of lever arm 12 stretches out above vertical support member 13 certain distances.Securing member of extension spring 17 usefulness is installed between the upper surface of first end of lever arm 12 and base 11.For example, the opposite side that can pass through first end of lever arm 12 forms a hole, and pin or screw 19 can be used for first end of spring is fixed on that.Second end of spring 17 also is connected the upper surface of base 11 with a securing member, for example screw is detained hook or other securing member.The end of spring 17 also can be connected on base and the arm separately by epoxy resin or other adhesive.

With reference to Fig. 2, the position that the elastic characteristic of spring 17 makes lever arm 12 can get back to it normally to lift.Just, spring 17 normally compresses, and second end of maintenance lever arm 12 is on base 11.When applying downward power on second end (handle) 20 of user at lever arm 12, spring 17 rises along with first end of lever arm and stretches.In case the user stops at lever arm 12 and applies downward power, spring 17 turns back to its normal compressive state, and first end with lever arm retracts downwards thus, and second end prepares to admit the shellfish that is used to open upward to its normal opening.

In an interchangeable embodiment, shown in the virtual image among Fig. 2, compression spring 17 ' between pivot pin 18 and blade 15 to rise arm 12.This spring is connected on arm and the support member 14.

Fig. 4 is the viewgraph of cross-section of Seashell opening tool along the line 4-4 ' of Fig. 2.Blade 15 or fixing or be rotatably connected on the lever arm 12.Shellfish for example clam is put in the groove 16, and against fore shell support member 14.When clam is put in the groove 16, selectively use side supports fixator 30 further to keep clam to be placed vertically.The manual then seam with clam is to below the edge of a knife of blade 15, and the downward power that is applied to like this on the handle 20 of lever arm 12 initially forces the knife edge to enter in the seam, the two halves of subsequently shellfish being rived.

Fig. 5 a-5c has schematically described Seashell opening tool 10 operating procedure in use.With reference to Fig. 5 a, the residing part of closed shell flesh of clam places groove 16.Clam reach then is to such an extent as to leading edge is near the recessed or V-shaped part of support member 14.

Though do not show among Fig. 5 a, the selectable side supports fixator 30 of setting forth among Fig. 3 and 4 can be used for the side supports of shellfish.In this case, side supports wall 34 is separated from each other and is inserted in the groove 16 to hold clam.In case clam is arranged in groove 16, spring 36 forces side supports wall 34 to head on the opposite side separately of clam.

With reference to Fig. 5 b, user (for example sheller) holds the handle 20 of lever arm 12, and applies downward power, places and the edge of a knife of aligned blades 15 and the seam of clam.In this step, the user can have to the position of the whole shellfish of a hand adjustment freely.

With reference to Fig. 5 c, in case blade aligns with the seam of shellfish, the user stably applies power downwards with hand on handle 20, forces blade 15 to enter between two shells.When the user continues downward pressure handle 20, blade 15 applies the power that is directed downwards along the seam of clam, head on the recessed portion of support member with the leading edge that drives clam, the recessed portion of support member is as supporter, to prevent that lever arm 12 is applied to shellfish and shellfish is released the optimum operation position of aliging with blade 15 with power forward downwards.In other words, when blade when the seam of shellfish constantly descends, shellfish is fixed on support member 14, between the edge of a knife of groove 16 and blade 15.

Simultaneously, two relative shells of the inclined-plane of blade 15 or wedge shape two side direction clams apply the power of side direction.The side force that the side of blade produces forces two relative shells of shellfish to be separated.

In the embodiment that uses side supports securing member 30, the side force that the side of blade 15 causes is transformed into the outer surface of two shells, and promotion side supports wall 34 moves back to its base flange 32 separately.Thereby each side supports wall 34 can be moved half of about blade width.

After clam was rived, the user can apply downward power unceasingly on lever arm 12, cut off closed shell flesh with the edge of a knife with blade 15.In case the user cuts off the closed shell flesh of shellfish, two shells can keep permanent each other and separate.The user loosens the handle 20 of lever arm 12 then, and spring 17 makes handle 20 return its normal stand up position on base.At this moment, the user removes the shellfish of riving, and this process can repeat another shellfish.

The material manufacturing of opening preferably by firm, corrosion resistant and lightweight of the present utility model, and use fulcrum and lever technology to open shellfish rapidly.Favourable, Seashell opening tool comprises groove 16 and front supporting member 14, when the blade on the lever arm 12 15 was cut the seam of shellfish, groove 16 and front supporting member 14 were fixed on shellfish best position jointly.Selectable, sidepiece fixator 30 provides the further support to shellfish, being displaced sideways of shellfish being minimized when the open operation, and strengthens the security of user's operation.

Seashell opening tool is being efficient to following operation aspect the time: be used for shellfish being placed on groove and heading on support member 14, and apply downward power by the handle 20 of lever arm.Further, spring 17 returns automatically and keeps the position of handle in its normal upright.

Seashell opening tool 10 can be used for any smooth plane, and base 11 selectively adopts leg or suction cup to open 10 with stable on the table.Therefore, shellfish can be easily transported to the position of any desired.Interchangeable, open 10 and can for good and all fix on the table by using securing member, for example use a plurality of bolts or screw, it is by the hole on the surface of passing base 11 of preboring.

A kind of suitable opening, have good stability and enough mechanical advantage are provided, open multiple clam easily with safety, these clams are gathered in the crops (being commonly referred to " quahaug ") in the northeast of the U.S. usually, this kind opened to have size and is about 15 centimetres/6 inches * 40 centimetres/16 inches base, long 40 centimetres/16 inches lever arm, it is 10 centimetres/4 inches that diameter has been installed above the lever arm, thickness is 2.5 centimetres/1 inch semicircle blade 15 at the widest part.The arc mobile scope of lever arm is limited, so the minimum part of blade stops at from about 1 centimetre/0.4 inch place of base.Such arrangement prevents that blade from engaging the bound fraction of clam.

In addition, Seashell opening tool 10 is safe in utilization, and this is because because shellfish is fixed on the optimum position between base and the blade.The sharp edge of a knife of blade is downwards and away from the user, thereby the injury that will contact with blade minimizes, and further, when blade incision shellfish, optionally sidewall 32 helps to prevent that the shell sheet is broken and bursts apart.Thereby in opening process, shell pomegranate graupel effect can minimize.

Though at length shown here and described embodiment in conjunction with the utility model instruction, those skilled in the art can also easily design many other various embodiment that still combine these instructions.

Claims

1, a kind of manual Seashell opening tool, it comprises:

Base, it is included in the groove that its upper surface forms;

At least one fulcrum support member stretches out from the upper surface of base;

Lever arm, it has first end that is pivotally connected at least one fulcrum support member and second end that forms handle, and described handle makes first end around described at least one fulcrum support member pivoting action; And

Blade is connected with described lever arm lower surface;

It is characterized in that, the described groove of described base is configured to hold shellfish bottom bound fraction, described blade is vertically placed and is alignd with described groove, and described Seashell opening tool also comprises vertical shell support member, described shell support member closes on described groove and stretches out from described base, and has a recessed portion that aligns with described groove, this recessed portion is configured to admit the leading edge of described shellfish, and wherein said blade can be by described handle is applied downward power shifts to described groove and recessed portion by hand.

2, the Seashell opening tool of claim 1, it is characterized in that, at least one fulcrum support member is a pair of relative support member that vertically stretches out from the upper surface of base, first end of lever arm is limited at this to moving pivotally between the support member by pivot pin, and the pivot pin horizontal expansion is by support member and lever arm.

3, the Seashell opening tool of claim 1 further comprises:

Spring, it has first end of first end that connects lever arm and second end of at least one fulcrum support member of vicinity of the upper surface that is connected base, it is characterized in that spring is compressed usually, to such an extent as to make the handle of lever arm be in upright position above the upper surface of base.

4, the Seashell opening tool of claim 1 is characterized in that, described blade comprises the sidewall on inclined-plane.

5, the Seashell opening tool of claim 1 is characterized in that, described blade comprises the sidewall of wedge shape.

6, the Seashell opening tool of claim 1 is characterized in that, described blade is rotatably installed on the described lever arm.

7, the Seashell opening tool of claim 6 is characterized in that, described blade comprises the circular sharp edge of a knife.

8, the Seashell opening tool of claim 1 is characterized in that, described blade is fixedly mounted on the described lever arm.

9, the Seashell opening tool of claim 1 further comprises a pair of relative side supports fixator, and fixator closes on the relative both sides of described groove to be placed, and is configured to engage the relative both sides of the shellfish that is positioned in the described groove.

10, the Seashell opening tool of claim 9 is characterized in that, each described relative side supports fixator comprises:

Base flange is connected with a side of base, and vertically stretches out the upper surface above base;

The side supports wall closes on described groove setting; With

Spring is connected between base flange and the side supports wall with engaging, described spring be compressed with side supports wall bias voltage to described groove.

11, the Seashell opening tool of claim 10 is characterized in that, each described relative side supports fixator further comprises at least one lead, and this lead is connected between described base flange and the side supports wall.