JPH07194294A - Device for cutting bivalve shell - Google Patents

Abstract

PURPOSE:To provide a device so designed that bivalve shell-removing operation can be easily conducted even by a layman at the locality, etc, and a hole for cutting scallops can be easily, efficiently opened on a raw oystershell, therefore, a consumer can remove a shell on site and enjoy the fresh of the shellfish therein. CONSTITUTION:This device has a rotary whetstone 1 to be driven by a motor, a hood 3 capable of covering/exposing the rotary whetstone, with at least the front opened, and a supporting body 4 to place the hood 3 on and support the rotary whetstone. The device is characterized by being equipped with a covering body 42 to cover the rotary whetstone 1 supported by the supporting body 4 and also with a a hood-supporting table 41.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a device for cutting bivalve shells. More specifically, the production of raw oysters with shells,
Alternatively, the present invention relates to a cutting device that can be used for shelling of bivalves such as oysters, scallops, mussels, and oysters.

[0002]

2. Description of the Related Art Conventionally, raw and oyster shells of natural and aquaculture have been collected or taken out from the sea, and then treated in a water tank for sterilization and rearing with seawater irradiated with ultraviolet rays for about one day and night. Then, after purifying the internal organs, packing in a box,
Alternatively, 2-3 pieces of seawater are packed (seawater is put in a plastic bag and the like is closed), kept at a low temperature, and sent to consumers. Separately from this, in the production area, it is peeled and packed in a bag, or subjected to other processing and shipped.

Raw oysters are excellent in flavor, and there is a great demand for raw oysters with shells. However, it is difficult to open the shell because the two shells are firmly closed by the adductor muscles (scallops), and it is easy for even a seasoned sheller to take out the contents of the raw oysters. It's not normal work. Therefore, there is a demand for a simpler method of shelling. In addition, because of the difficulty of shelling, it is the current situation to supply oysters in the state of stripped contents to ordinary households, but distribution services that deliver fresh seafood directly to home such as low-temperature delivery. Nowadays, the oysters with shells are more valuable as they are shipped with shells, and therefore, there is a demand for raw oysters with shells that can be easily unhulled by ordinary households. Further, bivalves other than raw oysters with shells, such as scallops, mussels, and pearl oysters, are required at the shelling work site to provide a means for easily shelling regardless of the skilled person.

In view of the above problems, the inventor of the present invention provides a method for easily peeling shelled raw oysters without the need for a skilled person to mechanically scrape the contact portion of two shells to open a hole. , A method of inserting a cutting tool through the hole to cut the scallop (closed muscle), and a raw oyster with a shell in which the scalpel cutting tool is attached to the hole through a cutting tool supporting means (Japanese Patent Application No. 5-111108) , And a raw oyster with a sealed opening (Japanese Patent Application No. 5-234205).

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide an oyster shell cutting device for more efficiently carrying out the invention such as the above-mentioned method for shelling raw oysters and raw oysters with shells for scallop cutting tools. To do. A further object of the present invention is to provide a cutting device capable of efficiently shelling bivalves other than oysters.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises: 1) a motor-driven rotary grindstone 1 and a dough hood 3 which is open at least on the front side and which can cover and expose the rotary grindstone 1.
And a support 4 on which the hood 3 is placed and which supports the rotary grindstone. The support 4 supports the rotary grindstone 1 and covers the cover 42 and the slide hood 3.
3. A device for cutting bivalve shells, which is equipped with the support base 41 of 2), 2) A device for cutting bivalve shells according to 1), wherein the hood is a slide hood that can move back and forth. ) The device according to 1 or 2 above, wherein the bivalve is an oyster.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the device of the present invention. In the figure, 1 is a rotating grindstone driven by a motor. The rotary grindstone 1 is rotationally driven by a motor to cut and open a desired portion of the bivalve shell 2 in contact with the rotation surface. The rotary grindstone 1 is made of a grindstone material that gradually wears during shell cutting, or contains industrial diamond powder, and can smoothly cut the shell without causing clogging. I wish I had it.

As such a rotary whetstone, M.
A porous grindstone sold by Gee is preferably used. The left and right width of the rotary grindstone 1 may be arbitrarily determined according to the target bivalve shell. For example, in the case of the previously proposed raw oyster with a shell that can be easily peeled, a hole drilled in the oyster shell 2 It is defined by the width of 21 (see FIG. 2). The width of this hole 21 that can be operated by inserting a cutter for cutting the scallop, that is, the left-right width of the rotary grindstone 1 is usually 1
-4 cm, preferably 1.5-3 cm.

The rotary grindstone 1 is covered with a hood 3. The hood 3 is opened at least on the front surface or on both the front surface and the back surface, and is mounted on the support base 41 of the support body 4 with the rotary grindstone 1 being seen from the front surface. The hood 3 may be one in which a cutting surface of a rotary grindstone is partially exposed and fixed to a support so that a cutting operation of a bivalve shell can be performed, but a slide type that is movable back and forth is preferable. As an example of the means that can be moved back and forth, the frame rear end 3
There is a spring 33 connecting 1 to the inner wall of the cover 42 of the support 4 (see FIG. 6). The spring 33 operates so that the spring action always presses the slide hood 3 in the front direction (forward) to cover the rotary grindstone 1.

When cutting the shell 2 of the bivalve shell, the shell 2 pushes the frame front portion 34 of the slide hood 3 rearward to move the slide hood 3 rearward, whereby the exposed rotary whetstone 1 is exposed. The shell 2 may be pressed. Therefore, the left and right inner width of the slide hood 3 is made wider than the left and right width of the rotary grindstone 1. For the cutting of raw oysters with shells, the horizontal width of the rotary grindstone 1 is made to be about 1 to 4 cm as described above, and the longitudinal width of oyster shells generally distributed as a product is usually about 8 to 20 cm. Correspondingly, the inner width of the slide hood 3 may be set to about 5 to 7 cm.
There is no particular limitation on the width of the whetstone when using it for normal oyster peeling work or other bivalve shell removing work.
It may be set to any width. Further, the cutting position of the shell is not particularly limited. As another means for moving the hood 3 back and forth, instead of a spring, the hood may be moved back and forth to a desired position and fixed depending on the wear amount of the grindstone.

The rotary grindstone 1 is axially supported by a support 4.
The support 4 is composed of a box-shaped cover 42 that supports the rotary grindstone 1 and covers the rotary grindstone 1, a support base 41 on which the slide hood 3 is placed, and legs 43 that support these objects. The rotary grindstone 1 is pivotally supported by a rotary shaft 13 attached to the left and right side walls of the cover 42.

A motor drive unit 5 for transmitting power to the rotary shaft 13 is placed inside the cover 42, and the motor drive unit 5 is mounted on the switch 4 in front of the cover 4.
It is driven by the operation of 21. In the case of a device for cutting a raw oyster with a shell, a hole 2 after cutting the raw oyster shell 2 in the covering body 42.
Finishing tool 44 for finishing the opening of No. 1 into the required shape
May be attached to, for example, the front side portion thereof.

This finishing tool is useful for producing a raw oyster with a cutting tool shell and a raw oyster whose opening is sealed, as previously proposed by the present inventors. A perspective view, a side view, and a front view of the finishing tool before attachment are shown in FIGS. 4 (a), (b) and (c). The finisher 44 is made of stainless steel or other hard material and has a rectangular shape with a width of 1 cm and a length of about 10 cm. Especially, the tip portion 441 has a length of 2 to 3 mm and a thickness of about 1 mm. 44
The fixing piece 443 and the lower surface of the main body 442, which are provided below, may be positioned and fixed so as to sandwich the corner of the front side portion of the covering body 42.

In the finishing operation, the hole 21 of the shell 2 has a preferable shape such that a slender cutting tool can be inserted only by inserting the tip portion 441 of the finishing tool 44 into the hole 21 opened by cutting.

The support base 41 of the support 4 is for movably mounting the slide hood 3 as described above.
As shown in the plan view, the center portion of the support base 41 is cut out in a concave shape to open, and the rotary grindstone 1 is inserted into this opening. The support of the rotary grindstone 1 may be performed by the support base 41.

As shown in the side sectional view of the device of the present invention in FIG. 6, the front end portion of the support base 41 projects further forward than the front end portion 31 of the slide hood 3 to cut the bivalve shell 2. During the work, the area where the target shellfish can be placed is secured. By doing so, the cutting work can be stably performed.

Further, the lower surface of the front protrusion of the support base 41 is made of a synthetic resin, a fiber, a metal or other material of a size that covers the front half of the concave portion of the support base 41, that is, the front half of the rotary grindstone 1. The shell chute 45 may be attached. In this way, it is possible to prevent the scattering of shell debris generated by the cutting work and keep the working place clean at all times.

In the illustrated example, the support 4 has four legs 4
3 is installed. Instead of the legs, a member that supports the left and right side surfaces of the cover 42, a box body with a front opening, or a box body that surrounds four circumferences may be used. The height of the support base 41 and the rotary grindstone 1 is adjusted to a position where an adult can sit and perform a cutting operation in a comfortable posture by using the legs or their substitutes.

A sheet or a cover 46 having an L-shaped vertical cross section may be attached to the front surface of the cover 42 so as to cover the front surface of the hood when the apparatus is not used and to prevent dust during cutting.

The cutting device of the present invention has the above-mentioned structure, and is used as follows for manufacturing, for example, a raw oyster with shells. First, the switch 42 on the front of the support 4
1 is pressed to drive the motor driving device 5, whereby the rotary grindstone 1 is rotated. Then, raw oysters are collected, and the joint portion of the upper and lower two shells at the center of the shell 2 in the longitudinal direction is rotated by the rotary grindstone 1.
The slide hood 3 is placed on the support base 41 so as to come into contact with the slide hood 3, and is pressed toward the front of the slide hood 3. That is, the oyster scallop is
Since it is usually located in the center of the oyster shell, cutting is performed with the goal of making a hole 21 at the joint between the upper and lower shells at that portion.

The slide hood 3 pressed by the oyster shell 2 retreats to expose the rotary grindstone 1. The exposed rotary grindstone 1
The center portion of the oyster shell comes into contact with and is cut to open a hole 21 having a desired width and thickness. In the case of shipping as a raw oyster with shells that can be easily peeled off, the size of the opening is adjusted by treating with the finishing tool.

[0022]

EXAMPLES Examples of the present invention will be described below, but the present invention is not limited to the following examples.

Example 1 Width 5 to 8 cm and length 10 to 15 c taken out from seawater
m cultivated oysters (30 pieces) were placed in a seawater tank, treated with ultraviolet irradiation seawater for 48 hours, and then, using the cutting device of the present invention equipped with a rotary grindstone, two pieces above and below the longitudinal center of the oyster shell. The shell's joint is pressed against a rotating grindstone and cut to a thickness of 1.5.
A hole having a width of ˜2 mm and a width of 3 cm was opened. When a thin knife was inserted into these holes, it was extremely easy to cut the scallops and remove the shells.

Example 2 Using a cutting device of the present invention equipped with a rotary grindstone, aquacultured scallops were cut by pressing the vicinity of the ligament of the shells against the rotary grindstone to significantly reduce the shelling work.

[0025]

According to the present invention, holes for cutting scallops can be efficiently formed in the shell of raw oysters. Therefore, even a layman can easily perform work in a production area where a large amount of shells are to be peeled off. Further, the shape of the hole to be opened in the shell can be adjusted with a finishing tool so that the cutting tool can be inserted stably, and it can also be used for manufacturing the raw oyster with a cutting tool shell proposed by the present inventors. it can. In addition, scallops other than oysters, mussels,
Even for bivalves such as scallops, an amateur can efficiently remove shells regardless of the expert.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an example of a state in which raw oyster shells are opened.

FIG. 3 is a perspective view showing a state in which a raw oyster shell is opened.

4 (a), (b) and (c) are respectively a perspective view, a side view and a front view of a finishing tool.

FIG. 5 is a plan view showing a mounting state (positional relationship) of a rotary grindstone, a slide hood, and a support base.

FIG. 6 is a side sectional view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rotary whetstone 2 oyster shell 21 hole 22 dent 3 hood 31 hood frame rear end 33 spring 34 front frame 4 support 41 support base 42 covering body 421 switch 43 leg 44 finishing tool 441 tip 442 main body 443 fixing piece 45 shell chute 46 cover 5 motor drive device

Claims (3)

[Claims] 1. A rotary grindstone 1 driven by a motor, a hood 3 having an opening on at least a front surface capable of covering and exposing the rotary grindstone 1, and a support 4 on which the hood 3 is mounted and which supports the rotary grindstone. The support 4 supports the rotary grindstone 1 and covers the rotary grindstone 1, and the hood 3
An apparatus for cutting a bivalve shell, which is equipped with a support base 41 of 1. 2. The device for cutting a bivalve shell according to claim 1, wherein the hood is a slide hood that is movable back and forth. 3. The clam of claim 1, wherein the bivalve is an oyster.
The device according to.