JPS6366172B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for opening Akoya oysters and other bivalves used as mother oysters for cultured pearls, for example.

[Conventional technology]

To open an Akoya oyster used as a mother oyster for cultured pearls, grasp the oyster with one hand, and push a spatula etc. held in the other hand from the belly of the oyster.
It was pried open with a spatula.

[Problem that the invention seeks to solve]

Opening shells by hand caused a significant drop in efficiency (about 800 shells per day for skilled workers), increased fatigue, and caused damage to fingers.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention includes a seat on which the bivalve is placed so that it does not shift, a slider that is provided to move forward and backward in front of the bivalve,
A spatula protruding from the tip of the slider and whose leading edge pierces the belly of the bivalve and enters the bivalve when it moves forward; It consists of a rotating piece for opening the upper shell that is linked so that the tip rises as the spatula retreats.

[Effect]

first. Place one of the bivalve shells on the catch.

At this time, keep the belly of the clam facing the direction of the spatula.

Next, when the slider is moved forward, the tip of the spatula pierces the belly of the shell located on the upper side of the bivalve.
A spatula and a rotating piece overlapping the upper surface of the spatula enter the bivalve, and the spatula separates the scallop.

Then, pull out the spatula while retracting the slider.

At this time, as the spatula is pulled out, the rotating piece rotates in the rising direction, so the spatula holds down one shell, and the rotating piece opens the upper shell.

〔Example〕

In the figure, reference numeral 1 indicates a seat on which the bivalve is placed so as not to shift.

The above-mentioned catch seat 1 consists of a seat plate 2 that slopes upward toward the front in the illustrated case, protruding strips 3, 3 provided on both sides of the upper surface of this seat plate 2, and provided above the lower end of the seat plate 2. When one side of a bivalve shell is placed on the seat plate 2, the front and rear parts of the shell come into contact with the protruding strips 3, 3 on both sides to make it sit better, and the stopper 4 The backs of the bivalves are brought into contact with each other to prevent them from slipping.

Further, in front of the catch seat 1, a slider 5 that moves forward and backward is provided. An inverted L-shaped holding piece 10 is provided at the upper end of the rocking body 9 having a pivot shaft 8 at the lower end, and a shaft member 6 is provided inside the holding piece 10. A rotor 11 is fitted into the end of the rotor 11, and the tip of the crank rod 14 of the crank mechanism 13, which is activated by the operation of the motor 12, is connected to the rocking body 9 via a pin 15.
Although the shaft member 7 is moved forward and backward as the shaft member 7 is rocked in the clockwise and counterclockwise directions, it may be configured in this manner.

Furthermore, the end of a spatula 16 is attached to the tip of the slider 5, the tip of which penetrates into the belly of the bivalve as the slider 5 moves forward.

The tip edge of the spatula 16 is adapted to contact the lower surface of the lower shell of the bivalve A and to separate the scallop a.

At this time, as shown in FIG. 4, since the stopper 4 is obliquely crossed to the seat plate 2 and the scallop a is positioned on the passage line of the spatula 16, the scallop a can be reliably separated.

Further, as shown in the figure, a screw shaft 20 into which a bolt 18 and a wing nut 19 are screwed is made to protrude horizontally from the front and rear sides of the board 17, and a stopper 4 is provided at the tip.
The bolt 18 is inserted into the inclined elongated hole 21 of the base 26 which has a
The screw shafts 20 are passed through each of the horizontal long holes 22, and the tip of a bolt 25 screwed into the protrusion 24 of the base plate 17 is brought into contact with the protrusion 23 protruding laterally from the end of the base 26. By placing the stopper 4 in place, the stopper 4 can be moved and adjusted in the front-rear direction and the up-down direction.

Furthermore, the end of the slider 5 side is rotatably attached to the spatula 16 via a horizontal pin 27 so as to overlap the top surface of the spatula 16.
A rotating piece 28 for opening the upper shell of the bivalve A is provided so that the tip thereof rises as the bivalve A moves backward.

The above-mentioned rotating piece 28 is the above-mentioned rotating piece 2 in the illustrated case.
A rod 29 protruding downward is fixed to the side surface of the end of the board 17, and a pin 30 is installed in the middle so that the end stops when the bottom surface of the end and tip comes into contact with the upper surface of the substrate 17, and the end descends due to its own weight. A shaft-supported guide rail 31 is provided, and when the spatula 16 moves forward, the lower end of the rod 29 rides on the guide rail 31, and when the spatula 16 finishes moving forward, the rod 29 comes off from the tip of the guide rail 31, and the spatula 16 begins to retreat. and the rod 29 is attached to the raised end of the guide rail 31.
Although the lower ends of the rotary member 28 are brought into contact with each other to rotate the rotary piece 28 in the rising direction, the rotary piece 28 may be rotated using other configurations.

Further, as shown in the figure, a shaft member 32 is provided upright on one side of the catch seat 1, and the annular body 33 is fitted onto this shaft member 32 so as to be able to move up and down.
The intermediate portion of the tilting body 36 is supported by the base plate 17 via the pin 35, and the tilting body 36 is pushed back downward.
The crank mechanism 13 is brought into contact with the upper end edge of the annular body 36 to raise and lower the tip of the tilting body 36, and the two prongs 37 at the tip of the tilting body 36 are brought into contact with the lower surface of the annular body 33. Pressing member 38 on the outer periphery
The upper end of the stand 3 is supported, and the vertical rod 3
9 is fitted with a ring 40 protruding from the outer periphery of the annular body 33, and the vertical rod 39 is bent upward from the middle so that as the annular body 33 rises, the presser member 38 escapes backward from directly above the bivalve A. As the annular body 33 descends, the rod 39 is used to rotate the annular body 33 so that the presser member 38 faces directly above the bivalve mollusk A, and the spring 34 is then used to push down the annular body 33 to place the presser member 38 on the bivalve A. The bivalve mollusk A can be easily inserted by firmly supporting the bivalve mollusk in pressure contact, and rotating the annular body 33 by the rod 39 when the annular body 33 rises to release the presser member 38 from directly above the bivalve mollusk A.

Furthermore, the middle of the rotating plate 41 is rotatably attached to the front side of the shaft member 32 via a pin 42, and a spring 43
presses one side of the forward facing end of the rotary plate 41 to separate the tip of the rotary plate 41 from the bivalve A, and also moves the protrusion 45, which is pivotally supported on the slider 5 via a pin 44, to the slider 5. Rotating plate 4 when moving forward
The protruding piece 45 is brought into contact with the stator 46 protruding from the slider 5 and rotated in the direction of escape (solid line position in Figure 2), and after passing, the protruding piece 45 is returned to its original position by a spring (not shown). Projection piece 4 on 46
5 collide with each other to rotate the rotating plate 41, so that the bivalve A on the catch seat 1 can be automatically taken out by the rotating plate 41 after the presser member 38 is raised.

〔effect〕

As described above, according to the bivalve opening device of the present invention, when a bivalve is placed on the catch and the slider is moved forward, the spatula is first inserted into the bivalve from the belly edge of the upper shell of the bivalve. Next, the rotating piece pierces and separates the scallop with the tip of the spatula, and when the slider retreats, the rotating piece is rotated in the rising direction to open the upper shell. can open bivalves efficiently.

[Brief explanation of drawings]

FIG. 1 is a front view of the opening device according to the present invention, FIG. 2 is a partially cutaway plan view of the same, FIG. 3 is an enlarged front view showing essential parts of the same, and FIG. 4 is a plan view of the same. A... Bivalve, 1... Receiver, 2... Seat board, 3...
...Protruding strip, 4...Stopper, 5...Slider, 6
...Shaft material, 7...Guide, 8...Rotation shaft, 9...
... Rocking body, 10 ... Holding piece, 11 ... Rotor,
12...Motor, 13...Crank mechanism, 14
... Crank rod, 15 ... Pin, 16 ... Spatula, 17 ... Board, 18 ... Bolt, 19 ... Wing nut, 20 ... Screw shaft, 21 ... Slanted long hole, 2
2...Horizontal elongated hole, 23...Protrusion piece, 24...Protrusion piece, 25...Bolt, 26...Base, 27...
Pin, 28... Rotating piece, 29... Rod, 30... Pin, 31... Guide rail.

Claims (1)

[Claims] 1. A receiving seat on which the bivalve is placed so that it does not shift; a slider provided to move forward and backward in front of the bivalve; and a slider that protrudes from the tip of the slider, and when it moves forward, the leading edge pierces the belly of the bivalve to prevent the bivalve from moving forward. A spatula that enters the interior, and a rotating piece for opening the upper shell of a bivalve, overlapping the top surface of this spatula and rotatably attaching the end on the slider side, and interlocking so that the tip rises as the spatula retreats. A bivalve opening device consisting of.