JPS5930058B2 - Meat scraping cutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cutter for use in processing meat or poultry, and more particularly to a meat scraping cutter for use in separating meat from bones.

Conventionally, the above-mentioned separation work has been carried out using a knife or a small force with a sharp tip, and by adjusting the incision according to the complex shape of the bone with the touch of a skilled hand.

However, such manual scraping work is inefficient, and the cutting edge may dig into bone etc., causing damage.
Furthermore, it was difficult to secure skilled workers. The present invention was created in consideration of the current situation, and its purpose is to greatly improve the efficiency of the work by automatically performing the above-mentioned scraping work, and also to improve work efficiency by automatically performing the above-mentioned scraping work. To provide a meat scraping cutter capable of scraping meat along bones, even if the meat is bones.

The present invention provides an annular groove opening in the radial direction on the outer circumferential surface of a rotating disk body, supports the proximal ends of a plurality of cutter blades in the annular groove so as to be rotatable at a required circumferential pitch, and further The cutting edge of the cutter blade is formed so that it protrudes radially from the outer circumferential surface of the rotating disc body when the disc body is rotating, and is housed in the annular groove when the disc body is not rotating. This relates to a cutting cutter.

EMBODIMENT OF THE INVENTION Hereinafter, the meat scraping cutter according to the present invention will be specifically explained using an embodiment illustrated in FIGS. 1 to 3.

In the figure, reference numeral 1 shows the overall structure of the meat scraping cutter, which is rotatably attached to a frame 2 in this embodiment.

The meat scraping cutter 1 is substantially composed of a rotating disc body 3 and a cutter blade 4 incorporated into the disc body.

Thus, the rotating disk body 3 consists of two halves 5 and 6, and a protrusion 8 provided on the flat surface of the lid-shaped half body 6 is fitted into a recess T provided on the flat surface of the cutter blade mounting half body 5. Then, connect bolt 1
It is assembled by tightening both parts in step 1.

At this time, since the height of the protrusion 8 is slightly larger than the depth of the recess 7, a flat annular gap is created between the flat surfaces of the two halves 5 and 6, and the gap is located around the outer circumference of the rotating disk body 2. An annular cutter blade mounting groove 9 opening in the radial direction is formed on the surface. On the other hand, a plurality of cutter blades 4 are mounted in the same annular cutter blade mounting groove 9 at a required circumferential pitch.

Each cutter blade 4 is formed of a substantially elliptical plate, and has a base end pivoted in a cutter blade attachment groove 9 by a pivot pin 12, and a cutting edge formed at the tip end. With the above configuration and shape, when the rotating disc body 3 rotates, the cutting edge tends to be located on the extension line connecting the rotating disc body 3 and the pivot pin 12 due to centrifugal force (the position shown by the solid line in Figure 3). , when the rotating disk body 3 is not rotating, it is in a bent state and stored in the cutter blade mounting groove 9 (
position shown by the broken line in Figure 3). Regarding the other components of this embodiment, reference numeral 13 denotes a rotating shaft having a cutter blade attachment half 5 fixed to the tip with a set screw 14;
5 is a needle bearing that rotatably attaches the rotating shaft to the frame 2; 16 is a rotary motor attached to the other side of the frame 2; and 17 is a drive attached to the output shaft of the rotary motor 16. One side plate, 18 is the cutter blade mounting half 5
The driven pulley 19 is integrated with the driving pulley 17.
This is a belt that connects the driven pulley 18 to the driven pulley 18.

Next, the operation of the meat cutting cutter according to the present invention will be described.

First, the rotation motor 17 is driven to rotate the rotary disk body 2 via the belt 19.

This rotation generates a centrifugal force, and due to the centrifugal force, the center of gravity G of each cutter blade 4 tends to be located on an extension line connecting the center of rotation of the rotating disc body 2 and the center of the pivot pin 12. The energy for maintaining this position becomes the cutting force of the cutter blade 4. Next, as shown in FIG. 4, when the cutter approaches the workpiece 20, when the workpiece enters the cutting edge arc R, the cutter blade 4 retreats while cutting into the meat according to the cutting force (position holding force). When the cutter blade 4 hits a bone, the cut is very small because the bone is hard, and the cutter blade 4 retreats, and when it leaves the object 20 to be processed, it returns to its original position.
In this way, the cutter blade according to the present invention is structured so that it can only cut meat and retreat when it hits a bone, so it can scrape off pieces of meat from the bone without causing damage or wear to the cutter blade. In addition to the above-mentioned scraping operation Vc, the cutting force F of the cutter blade 4 is generally determined by (1) the rotational speed N(
R. p. m. ) (2) Radius R (Cm) of the cutting edge circle (3) Radius r (Cm) from the connecting pin (4) (weight on the r side) - (weight on the opposite side of r) of the cutter blade with the center of the connecting pin as the border Weight) W (K9) (5) It is expressed as a function consisting of variables of the distance y (Cm) between the center of the connecting pin and the center of gravity of the cutter blade, and the desired cutting can be achieved by changing the values of these variables. A force F can be obtained.

However, although 2, 3, 4, and 5 can be set in any way before manufacturing, they remain constant after manufacturing, so in actual work, (5) By changing the rotation speed n An appropriate cutting force is required to cut the meat of the object 2-0 without cutting into its bones. As described above, the meat scraping cutter according to the present invention has the following effects.

(1) The cutter blade can cut off pieces of meat by the force that holds it in place due to centrifugal force, and when it hits a bone, it retreats and does not cut into the bone, so it completely scrapes off the piece of meat along the bone. It can be used without damaging the cutter blade.

(2) By driving the disc body with a motor or the like, it is possible to scrape off automatically and continuously.

(3) By incorporating a small motor into the meat scraping cutter, it can be used as a handy type that can be operated with one hand, and furthermore, it can be incorporated into an automatic device that processes large amounts of meat pieces at the same time.

[Brief explanation of the drawing]

FIG. 1 is a partial side view of a device equipped with a meat cutting cutter according to the present invention, FIG. 2 is a view taken along the line 1-1 in FIG.
FIG. 3 is a sectional view taken along the line of FIG. 1, and FIG. 4 is an explanatory diagram of the cutting operation using the cutter.

Claims (1)

[Claims] 1. An annular groove opening in the radial direction is provided on the outer circumferential surface of the rotating disc body, the base ends of a plurality of cutter blades are rotatably supported in the annular groove at a required circumferential pitch, and the cutter blades are rotatably supported in the annular groove. A meat scraping cutter in which the cutting edge of the rotary disc body is formed so that it projects radially from the outer peripheral surface of the disc body when the disc body is rotating, and is housed in an annular groove when the disc body is not rotating. .