JPH0751271Y2 - Rotating cutter for fish opening - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention (Industrial Application Field) This invention relates to a rotary cutter for dropping fish into two or three pieces, and more particularly to a circular saw blade type.

(Prior art) Conventionally, this type of cutter has a thin disk shape with a cutting edge on the outer periphery,
A fish body, which is held and conveyed by a pair of holding type belt conveyors by this cutter, is cut along the middle bone, and the fish is cut into two or three pieces. However, there is no conventional circular saw blade-like cutter of this type. The circular saw-edged blade is the only one disclosed in Japanese Utility Model Laid-Open No. 59-170481 previously developed by the applicant.

(Problems to be solved by the device) However, since the former one has a thin disk shape, in the case of fish species with a large amount of oil and fat components, the oil and fat adheres to the thin disk-shaped side surface and the sharpness is immediately reduced. The frictional force increases and the meat pieces adhere to the side surface of the cutter. Also, because it is a thin disc, it will be laterally distorted when hitting a hard bone, increasing the amount of meat that attaches to the middle bone, and the yield will deteriorate when three pieces are grated,
If this distortion becomes extremely large, the cutter itself may be damaged, which is extremely dangerous.

The latter is for separating the midrib portion formed by cutting into three pieces from the body, not for cutting.

The present invention is intended to improve such a conventional technique, and a rotating cutter that can cut a fish body in a stable state without sharpening the sharpness for a considerable period even if the fish species has a hard bone and a high fat content. Is to

B. Configuration of the Invention (Means for Solving the Problems) In order to achieve the above-mentioned objects, the invention is one in which the outer periphery of the rotating disk is a circular saw blade, and each triangle of the circular saw blade 11 is Each of the shaped partial cutting edges 12 has a front edge 13 in the direction of rotation that extends from the radial direction toward the rear by about 30 ° to the tip.
A rotary cutter for fish opening that is inclined at 45 °, has a trailing edge 16 approximately in the radial direction, and has a cutting edge 15 at the tip of each partial cutting blade 12 having a circumferential edge.

Further, in order to achieve the above object, each front edge 13 of each partial cutting blade 12 of the fish-opening rotary cutter is formed on an inclined flat end surface 18 that is substantially perpendicular to the rotary disk surface. A rotary cutter for opening fish according to claim 1, characterized in that the utility model is registered.

In order to achieve the above object, in the present invention, the outer periphery of the rotary disk is a circular saw blade 11, and each triangular partial cutting blade (12) of the circular saw blade 11 has a front edge and a rear edge, respectively. A rotary cutter for fish opening, characterized in that both edges are inclined from a radial line by 30 ° to 45 °, and at least each of the front edges is formed as a knife edge.

Moreover, in order to achieve the said subject, it may be characterized in that it is formed in each front-and-back edge each knife edge of each said partial cutting blade of the said fish opening rotary cutter.

(Effect of the Invention) When any rotary cutter of all the claims configured as described above is used, like the known disc type cutter,
The cutter of the present invention is inserted between the pair of endless belts of a belt conveyor having a pair of holding type endless belts and a receiving member composed of a fish body guide table or a flat endless belt below the conveying portion, and the rotation direction is inclined. Make sure the leading edge is in front. The rotating direction of the rotary cutter and the conveying direction of the belt conveyor should be opposite to each other at the portion where the cutter contacts the fish. Use one rotary cutter to grate two fish and two rotary cutters to grate three fish.

Then, fish bodies are sequentially supplied from the belt conveyor carry-in section.

The operation will be described below for each claim.

When the fish bodies sequentially sent by the belt conveyor come into contact with the rotary cutter, the position of the fish body along the mid-bone of each of the partial cutting blades is determined by the circumferential edges of the cutting edges. It is cut and deeply cut as the belt conveyor progresses, and the leading edge inclined at 30 ° to 45 ° of each partial cutting edge makes intermittent contact with the opened fish meat surface. By the radial component force and centrifugal force accompanying the rotation of the rotary cutter at this time,
The fish body is conveyed while being pressed by the receiving member, and when passing through the rotary cutter portion, the fish body is lowered into two or three pieces.

The invention according to claim 2 has the same action as the invention according to claim 1, and in particular,
Since the leading edge inclined by 30 ° to 45 ° is a flat end face inclined at right angles to the rotating surface of the rotary cutter, the fish body is intermittently pressed toward the receiving member by a part of this surface.

A device according to claim 3, wherein the outer periphery of the rotary disc is a circular saw blade, and each triangular partial blade of the circular saw blade has a front edge and a rear edge in a radial direction. In a fish-opening rotary cutter, which is inclined by 30 ° to 45 °, and at least each of the leading edges is formed as a knife edge, the leading edge of each partial cutting edge is also a knife edge. Therefore, in addition to the function of the invention of the first item, it also functions to intermittently cut the fish body at each of the front edges.

In addition to the function of the third aspect, the rotary cutter is attached in the rotation direction because the partial cutting blades are inclined to the front edge common angle and both are knife edges. The same effect will be obtained regardless of mounting.

(Examples) Now, examples of these devices will be described with reference to the drawings.

Example 1 (Claims 1 and 2) 10 is a rotary cutter, which is made of the same material as a normal disk rotary cutter, and the thickness of its central portion is about 3 to 5 mm. The thickness of the part is about 0.5 to 1.2 mm, and the front edge 13 of each partial cutting blade 12 has a shape in which the cutting edge 14 is inclined forward of the cutting edge 15 with reference to the rotation direction, that is, the rotation direction in the drawing. The inclination angle θ is inclined 30 ° to 45 ° with respect to the radial direction, and the trailing edge 16 of each partial cutting edge 12 is formed substantially in the radial direction. The tip of the cutting blade 12 is a knife edge in the circumferential direction. In FIG. 2, the dimension in the thickness direction is exaggerated from the dimension in the radial direction.

The end face 18 and the rear end face 19 of the inclined front edge of each of these partial cutting edges 12 are formed as inclined planes perpendicular to the rotation direction (see FIG. 3).

The rotary cutter 10 has a completely flat surface on one side,
The shape is such that one side becomes thinner toward the outer circumference.

Example 2 (Claims 3 and 4) The difference from Example 1 is that the shape of each partial cutting edge 12 is the leading edge.
Both 13 and the trailing edge 16 are inclined symmetrically with respect to the radial direction by 30 ° to 45 °, and the tip of each partial cutting edge 12 is a sword-shaped tip 20,
Both the leading edge 13 and the trailing edge 16 are knife edges whose edges are on the flat side of the rotary cutter 10 (fourth edge).
(See Figures and 5).

The operation of each of the above-mentioned embodiments is the same as that of the present invention, but the rotary cutter of the present invention is used in place of the disk rotary cutter of the conventionally known two- or three-fish grater device.

For example, a device as shown in FIG. 6 is used. In FIG. 6, a pair of left and right endless belts 31 and a belt conveyor belt 30 composed of an endless belt 32 as a receiving member provided along the lower side of the conveying portion are used. When the endless belt 32, which is the receiving member described above, is below the pair of holding type endless belts 31, the rotary cutter 10 is inserted from above between the left and right pair of holding type endless belts 31, and the receiving member 32 is opposite. When the rotary cutter 10 is on the upper side of the pair of holding type endless belts 31, the rotary cutter 10 is inserted from below the pair of holding type endless belts 31 therebetween.

C. Effect of the Invention When the rotary cutter 10 of each claim configured and acting as described above is used as described above, if each partial cutting edge of the circular saw has the above-mentioned shape, the above-mentioned effect is obtained. Therefore, even in fish species with hard bones and fish with a high amount of oil and fat, each partial cutting edge hits intermittently, the sharpness does not diminish rapidly, and the area in contact with the fish body is also small because it is a saw blade shape. , Its frictional resistance also becomes less, and while cutting, the fish is not pressed by the inclined front edge toward the receiving member of the belt conveyor intermittently and the fish is not scratched from the belt conveyor. Or you can put it in three pieces.

In particular, according to the first aspect of the invention, since the trailing edge is formed substantially in the radial direction, a large number of partial cutting blades are provided on one circumference of the rotary cutter, so that the conveying speed can be increased.

According to the second aspect of the invention, in addition to the effect of the first aspect, the front edge has a flat end face inclined at a right angle to the turntable surface, so that the fish body is pressed toward the receiving member. Is more prominent.

In the fourth aspect, in addition to the effect of the first aspect described above, there is no particular limitation on the rotation direction, so that when the left or right of the middle bone is cut, it can be used simply by reversing the mounting surface. Since the front edge 13 of each partial cutting blade 12 is also a knife edge, even soft fish meat can be cut easily and neatly.

The effect 1 of the embodiment has both the effects of claim 1 and claim 2. The article of the second embodiment has the effects of the third and fourth aspects.

[Brief description of drawings]

The drawings show a typical one of the present invention. FIG. 1 is a front view of the first embodiment with some parts omitted, FIG. 2 is a vertical sectional side view, and FIG. 3 is a partial cutting edge of FIG. FIG. 4 is a partial plan view of FIG. 4, a partially omitted front view of the second embodiment, FIG. 5 is a vertical side view of FIG. 4, and FIG. 6 is a perspective view showing a relationship with a belt conveyor. Main symbols in the figure 10 …… Rotating cutter, 11 …… Partial cutting edge 12 …… Tip, 13 …… Front edge

Claims (4)

[Scope of utility model registration request] 1. A rotary disk having a circular saw blade (11) on its outer periphery, wherein each triangular partial cutting blade (12) of the circular saw blade has a front edge (13) in the direction of rotation. ) Is inclined rearward by about 30 ° to 45 ° from the radial line, the trailing edge (16) is almost radial, and the cutting edge (15) tip of each partial cutting edge (12) is in the circumferential direction. Rotating cutter for fish opening, characterized by having edges formed on the edges. 2. A utility model registration characterized in that each front edge 13 of each partial cutting edge (12) is formed on a flat end surface (18) inclined at a right angle to the surface of the turntable. The rotary cutter for opening fish according to claim 1. 3. A rotary disk having a circular saw blade (11) on its outer periphery, wherein each triangular partial cutting edge (12) of the circular saw blade (11) has a leading edge (13), and Both the trailing edge (16) is from the radial line
A rotary cutter for fish opening, which is inclined at 30 ° to 45 °, and at least each of the front edges (13) is formed as a knife edge. 4. The front and rear edges (1) of each of the partial cutting edges (12)
3), (16) The rotary cutter for opening fish according to claim 3, characterized in that it is formed on the knife edge.