JP2019080500A - Method for forming notch on chestnut skin and device used for the same - Google Patents

Abstract

To provide a method for forming a notch on a chestnut skin and a device used for the same, which are suitable for processing, for example, roasted chestnuts and peeling shells of various kinds of chestnuts and which are capable of forming a curve line-shaped notch of a fixed depth on the chestnut skin along a peripheral surface shape, improving an appearance of the notch and enhancing a texture of the roasted chestnuts, avoiding cutting into a real thick part as much as possible to prevent the real thick part from being reduced in a volume, elongating a cutting length into the real thick part to make it easy to take out the real thick part and secure a taste, cutting the chestnut skin in automatic, safe and rational manners without requiring a complicated and expensive control device, and reducing a size and a weight to make an installation space compact.SOLUTION: In a method for forming a notch on a chestnut skin by a cutter 49, the cutter 49 is caused to be close, separated and displaced in a thickness direction of the chestnut skin; the chestnut or the cutter is caused to be brought into closer and moved to a corresponding cutter or chestnut side; and a curve line-shaped notch of a fixed depth is formed on the chestnut skin along a peripheral surface shape.SELECTED DRAWING: Figure 1

Description

  The present invention is suitable, for example, for processing of roasted chestnuts and peeling of chestnuts of various varieties, forming a curved line-like incision of a certain depth along the circumferential shape in chestnut skin and improving the appearance of the incisions While improving the texture of baked chestnuts, avoiding cuts in the actual meat parts as much as possible, preventing a decrease in volume of the actual meat parts, and lengthening the cut lengths to make it easy to take out the actual meat parts , A chestnut skin incision forming method and its compact and lightweight installation space can be made compact by promoting automation and safety and rationalization of chestnut skin incision without requiring a complicated and expensive control device while securing umami taste Concerning the device

  Conventionally, as a chestnut peeler, for example, the middle part of the first and second holding parts is rotatably connected by a support shaft so as to form a sandwich, and the first end of the first holding part has a first blade A second blade, and a plate-like chestnut placing part on both sides of the second blade, and a slit-like point hole in the middle of the second blade. To make it possible to insert the first blade part into this fore-end hole part, put a chestnut on the chestnut placing part when peeling the onion skin, and place the cutting edges of the first and second blade parts on the onion skin There is one in which the first and second grip portions are closed and turned to peel off the onion skin (see, for example, Patent Document 1).

  However, in this chestnut peeler, it is necessary to carry chestnuts to the peeler one by one and to open and close the first and second holding parts, which is difficult to work with and difficult to mass-produce. Since the first and second holding parts are closed and turned while holding the chestnut on the chestnut placing part, the workability is poor and the cutting positions of the first and second blade parts with respect to the demon skin are not good. It became stable, and there was a problem that it could not peel the onion skin uniformly.

  In order to solve such a problem, a large number of cups are connected to a conveyor which moves in a vertical plane, the chestnut is supplied to the cup in its upper moving stroke, and the cup is opened downward in its lower moving stroke. A notch and a peeling portion are disposed immediately below the lower moving stroke, and the notch includes a slide plate having an elongated hole and a rotary shaft disposed immediately below the slide plate, and a pair of bosses disposed on the shaft The blade is protrusively provided, and the blade is brought into contact with the persimmon skin of chestnut to cut, move each cup to form a cut on the pericarp peripheral surface, and then move to the peeling part, and cut the convex portion thereof There is a chestnut peeling apparatus which is made to come in contact with to make it peel off (see, for example, Patent Document 2).

  However, since the chestnut peeling apparatus places the incisions and peeling parts immediately below the conveyor, it requires a long and large-sized installation space, and the structure becomes complicated. In general, the incisions are not uniform, and the appearance is not good. In addition, no certainty can be obtained for the peeling by the peeling section, and peeling residue occurs, and the actual meat area is There was a problem such as taking out hard.

  Also, as another chestnut peeling apparatus, a hopper for storing chestnuts is disposed on the upstream side of the chain conveyor, a chestnut case is disposed immediately below the opening of the hopper, and the chestnuts are exposed to the chestnut case. A plurality of chestnut receiving holes to be housed are provided, and the chestnuts are housed in the chestnut receiving holes and the chestnut receiving case is moved downstream by a predetermined position, and then the coil spring pressing plate is moved downward via an air cylinder to press the pressing plate immediately below. There is one in which this state is maintained and the cutter directly below is rotated to insert a cut of a certain depth linearly on the peripheral surface of the demon shell (see, for example, Patent Document 3). .

  However, the above-mentioned other chestnut peeling apparatus is large and expensive, and the chestnut is stored in various positions in the chestnut receiving hole, and the cut surface of the chestnut is cut with a cutter while suppressing the exposed portion. Because the cutting position is different and the appearance is poor and the cutting depth is generally shallow, the capacity reduction of the actual meat part is avoided, but it is easy to cause peeling of the devil's skin, and the actual meat part is removed and it is difficult there were.

On the other hand, recently, a new kind of chestnut capable of easily peeling astringent and hides has been developed and nurtured, and a peeling machine suitable for peeling the chestnut has been proposed. This peeler is designed to form a 3.5 mm deep cut in the middle of the chestnut over three quarters of the chestnut.
However, since the peeler holds chestnuts and rotates them 3/4 rounds to form incisions, the depth and depth of the cuts vary depending on the shape and size of the chestnuts, and uniformity of the incisions can not be achieved, There was a fear that the cutter was deeply cut into the actual meat part and the actual meat part was reduced and the taste was lost.
Moreover, although the skin peeling machine can obtain the desired effect for peeling the chestnut of the new cultivar, the general effect of peeling the astringent skin and the onion skin separately can not be obtained. There were problems such as its use being limited.

JP, 2016-123758, A Japanese Examined Patent Publication No. 3-4191 Patent No. 4269682 gazette

  The present invention solves such a problem, and is suitable for processing of roasted chestnuts and peeling of chestnuts of various varieties, for example, forming a curved line-like incision of a certain depth in the chestnut skin along the peripheral shape Improve the appearance of cuts and improve the texture of baked chestnuts, avoid cutting into the actual meat as much as possible, prevent the volume reduction of the actual meat, and lengthen the cut length. It makes it easy to take out the actual meat parts, secure umami taste, promote automation and safety and rationalization of incisions in chestnut skin without requiring complicated and expensive control equipment, and can make compact and lightweight installation space compact. It is an object of the present invention to provide a method and apparatus for forming a skin incision.

The invention according to claim 1 is a method for forming a cut in chestnut skin by forming a cut in the chestnut skin by a cutter, wherein the cutter is moved close to and away from the thickness direction of the chestnut skin and the chestnut or cutter corresponds to a cutter or chestnut side It moves close to and forms a curved linear incision of a certain depth along the periphery of chestnut skin, for example, suitable for processing of roasted chestnut and peeling of chestnuts of various varieties, the shape of the periphery of chestnut skin While forming a curved line-like incision of a certain depth along the surface to improve the appearance of the incision and improve the texture of baked chestnuts, avoid cutting into the actual meat as much as possible, The length of the cut is lengthened to make it easy to take out the actual meat part and secure umami taste, and automation of cutting of chestnut skin and without requiring complicated and expensive control devices such as sensors A safe, streamlined, compact and lightweight installation space So that attained the door of.
According to the invention of claim 2, the cutter is placed in a stationary position at a fixed position, with or without rotating, so that it can be used for rotating or non-rotating various cutters.

The invention according to claim 3 arranges the upper circumferential surface of the cutter so as to project a predetermined height above the moving area of the chestnut, and does not require a complicated and expensive control device such as a position sensor. In addition to setting, it is possible to adjust the behavior at the time of cutting of the cutter and the cutting into the chestnut skin.
According to the invention of claim 4, the seat portion is lowered and the chestnut is held in the standing position and moved to the cutter side to form a cut in the seat portion so as to form a cut of a fixed depth in the seat portion There is.
The invention according to claim 5 holds the both sides of the pointed end opposite to the seat portion and moves toward the cutter, forms a cut in the side skin of the side skin, and stabilizes a cut of a certain depth in the side skin To form

  According to the invention of claim 6, in the apparatus for forming a cut in the chestnut skin in which the cut can be formed in the chestnut skin by the cutter, the cutter is provided so as to be capable of approaching and disengaging in the thickness direction of the chestnut skin and the chestnut or cutter is corresponding It is provided so as to be able to move close to the cutter or chestnut side, and it is possible to form a curved linear incision of a certain depth along the circumferential surface of the chestnut skin, and suitable for example for processing baked chestnuts or peeling chestnuts of various varieties While forming a curved linear incision of a certain depth along the shape of the chestnut skin in the chestnut skin, improve the appearance of the incision and aim to improve the texture of the baked chestnut, it is possible to cut the actual meat part To avoid the capacity reduction of the actual meat part and to make it easy to take out the actual meat part by lengthening the cut length, to ensure the taste and to require a complex and expensive control device, chestnut skin Automatic, safe and rational cutting, small and lightweight So that attained the size of the installation space.

The invention of claim 7 arranges the cutter to be stationary at a fixed position with or without rotating, so as to be able to use various rotating or non-rotating cutters.
According to the invention of claim 8, the upper circumferential surface of the cutter is disposed to project by a predetermined height above the moving area of the chestnut, and the cutting position of the cutter with respect to the chestnut skin or the like without requiring complicated and expensive control devices such as position sensors. According to the invention of claim 9, the projection height of the cutter is adjustable so that it can be adjusted according to the behavior at the time of cutting of the cutter and the cutting into the chestnut skin. The incisions can be adjusted according to the type of chestnut skin and the working conditions without requiring complicated and expensive control devices such as position sensors.

According to the invention of claim 10, the rotatable cutter is formed in a disk shape, and a plurality of cutting edges are formed on the peripheral end portion thereof so that incisions can be easily and quickly formed in the chestnut skin.
The invention of claim 11 forms the cutter capable of stationary into a disk shape or a rectangular plate shape, sharpens the peripheral edge portion, configures the cutter simply and inexpensively, narrows the incision, and cuts the appearance of the incision I am trying to improve.
The invention of claim 12 arranges a slightly smaller diameter disk spacer or a slightly smaller side spacer on both sides of the cutter, and arranges the end of the spacer so as to be engageable with the circumferential surface of the chestnut, both sides of the cutter The surface is supported to prevent rocking at the time of cutting, and the cutting is precisely performed, and the cutting allowance by the cutter is regulated so that a stable cutting with a certain depth can be formed.

According to the invention of claim 13, the chestnuts are held in a standing posture with the seat portion downward and movably provided on the cutter side, and a cut of a certain depth can be formed in the seat portion.
According to the invention of claim 14, both sides of the pointed end opposite to the seat portion are held and movably provided on the cutter side, so that a cut of a certain depth can be formed in the side skin.
The invention according to claim 15 arranges a set of endless conveyors in a plane close manner, arranges the adjacent inner moving strokes of the conveyors so as to be movable in the same direction, and the outer peripheral part of the conveyors A plurality of pressing members disposed in the same movement, and a chestnut can be held between the opposing pressing members of the inner moving stroke portion, and a cutter is disposed in the middle of the inner moving stroke portion; The cutter is vertically movable and can be returned to the original position, and a curved line-like cut can be formed along the shape of the chestnut skin through the cutter, and the chestnut skin can be cut safely and easily. It is designed to be automated.

According to the invention of claim 16, the rotary shaft or the support shaft of the cutter is protruded on the side of the conveyer, the protruding portion is disposed so as to be capable of being biased upward through the balance spring, and the cutter is moved up and down (3) It is provided to be able to return to the original position, to realize close separation of various cutters in the direction of the chestnut skin, and to form a cut of a certain depth along the circumferential surface of the chestnut skin.
According to the invention of claim 17, the balance link can be mounted such that the proximal end of the swing link supporting the pivot shaft or the support shaft of the cutter can be engaged with the drive shaft, and the balance weight can be attached to one end of the swing link. Are connected so as to be movable in the same direction, and the cutter is vertically movable to return to the original position, and the cutter can be returned to the original position by moving up and down by the balance weight and its mounting position.

According to the eighteenth aspect of the present invention, the pressing member is formed of an elastic member, the elastic member is formed in a ring shape, and can be held without damaging the chestnut skin, and the elastic member is easily deformed according to the shape of the chestnut skin. To be kept in close contact with the chestnut skin.
The invention according to claim 19 can adjust the protrusion height of the cutter via the balance spring or balance weight and the mounting position thereof, and can cut the cutter with a simple configuration without requiring complicated and expensive equipment. The behavior and incision of chestnut skin can be adjusted.
The invention of claim 20 is provided with a holder capable of holding both sides of the chestnut placed on the immovable guide rail, the holder comprising a pair of pressing members capable of holding the both sides of the chestnut and the guide rail; The pressing member is provided with a pair of holding arms, and the pair of holding arms are rotatably connected in the inward and outward directions of the chestnut, and the lower part of the holding arm is always rotated toward the chestnut The holder is configured to be movably biased and to hold a chestnut and to hold it in a fixed position on the guide rail simply, and to make a cut by a cutter moving to the chestnut side smoothly and stably. .

The invention according to claim 1 is characterized in that the cutter is moved toward and away from the chestnut skin in the thickness direction, and the chestnut or cutter is moved toward the corresponding cutter or chestnut side, with a constant depth along the surface of the chestnut skin. Since a curved linear incision is formed, it is suitable, for example, for processing of roasted chestnuts and peeling of chestnuts of various varieties, and forms a curved linear incision of a certain depth along the circumferential surface shape of the chestnut skin Improve the appearance of cuts and improve the texture of baked chestnuts, avoid cutting into the actual meat as much as possible, prevent the volume reduction of the actual meat, and lengthen the cut length. It makes it easy to take out the actual meat parts and secures delicious taste, promotes automation and safety and rationalization of incisions in chestnut skin without requiring complicated and expensive control devices such as sensors, and makes compact and lightweight installation space compact Can be
The invention of claim 2 has the effect of being able to respond to the use of various cutters that are rotating or non-rotating, since the cutter is placed stationary at a fixed position without rotating or rotating.

According to the invention of claim 3, since the upper circumferential surface of the cutter is disposed to project by a predetermined height above the moving area of the chestnut, the incised position of the cutter with respect to the chestnut skin without requiring a complicated and expensive control device such as a position sensor. You can set the behavior of the cutter at the time of cutting and the cut into the chestnut skin can be adjusted.
In the invention according to the fourth aspect, since the seat portion is lowered and the chestnut is held in the standing position and moved to the cutter side to form a cut in the seat portion, it is possible to form a cut of a certain depth in the seat portion .
The invention according to claim 5 holds the both sides of the pointed end opposite to the seat portion and moves to the cutter side, and forms a cut in the side skin of the side skin, so a stable cut in the side skin is stabilized. Can be formed.

  According to the invention of claim 6, the cutter is provided so as to be capable of approaching and disengaging in the thickness direction of the chestnut skin, and the chestnut or cutter is provided so as to be capable of approaching the corresponding cutter or chestnut side, and along the circumferential surface of the chestnut skin Since it is possible to form a curved linear incision of a fixed depth, it is suitable, for example, for processing of roasted chestnuts or peeling of chestnuts of various varieties, and a curved line of a fixed depth along its circumferential shape in chestnut skin While forming the incision of the shape, improving the appearance of the incision and improving the texture of the baked chestnut, avoiding the incision to the actual meat part as much as possible, preventing the capacity decrease of the actual meat part, and the incision While lengthening the length to make it easy to take out the actual meat part, ensuring umami taste, automation and safety and rationalization of incision of chestnut skin are promoted without requiring complicated and expensive control devices such as sensors, small size and light weight The installation space can be made compact.

The invention of claim 7 has the effect of being able to respond to the use of various cutters that rotate or not rotate, since the cutter is arranged stationary at a fixed position without rotating or rotating.
According to the invention of claim 8, since the upper circumferential surface of the cutter is disposed to project by a predetermined height above the moving area of the chestnut, the incised position of the cutter with respect to the chestnut skin without requiring a complicated and expensive control device such as a position sensor. And, there is an effect according to the behavior at the time of cutting of the cutter and the cutting into the chestnut skin.
According to the invention of claim 9, since the protruding height of the cutter is adjustable, the cutting position of the cutter with respect to the chestnut skin and the cutting into the chestnut skin can be performed without requiring a complicated and expensive control device such as a position sensor. It can be adjusted according to the type of skin and the working conditions.

According to the invention of claim 10, since the rotatable cutter is formed in a disk shape and a plurality of cutting edges are formed on the peripheral end portion, the incision can be formed easily and rapidly in the chestnut skin.
According to the invention of claim 11, since the cutter capable of stationary is formed in a disk shape or a rectangular plate shape and the peripheral edge portion is formed sharp, the cutter can be configured simply and inexpensively, the cut is narrowed to make the cut Can be improved.
According to the invention of claim 12, since the slightly smaller diameter disk spacer or the slightly smaller side spacer is disposed on both sides of the cutter and the end portion of the spacer is arranged to be engageable with the circumferential surface of the chestnut skin, Both sides are supported to prevent rocking at the time of cutting, and cutting can be performed precisely, and a cutting allowance by the cutter can be regulated, and a stable cutting of a certain depth can be formed.

According to the invention of claim 13, since the seat portion is made lower and the chestnut is held in the standing position and movably provided on the cutter side, and the seat portion is formed with the cut, so that the seat portion is cut with a certain depth Can.
The invention according to claim 14 holds the both sides of the pointed end opposite to the seat portion and is movably provided on the cutter side, so that it is possible to form a cut in the side skin, so a constant depth along the skin Can be formed.
The invention according to claim 15 arranges a set of endless conveyors in a plane close manner, arranges the adjacent inner moving strokes of the conveyors so as to be movable in the same direction, and the outer peripheral part of the conveyors A plurality of pressing members disposed in the same movement, and a chestnut can be held between the opposing pressing members of the inner moving stroke portion, and a cutter is disposed in the middle of the inner moving stroke portion; Since the cutter is vertically movable and can be returned to the original position, and the curved linear incision can be formed along the shape of the chestnut skin through the cutter, the chestnut skin can be cut safely and easily. Automation of cutting can be achieved.

According to the invention of claim 16, the rotary shaft or the support shaft of the cutter is protruded on the side of the conveyer, the protruding portion is disposed so as to be capable of being biased upward through the balance spring, and the cutter is moved up and down Since it is provided to be able to return to the original position, it is possible to realize close separation of various cutters in the direction of the chestnut skin and to form a cut of a certain depth along the circumferential surface of the chestnut skin.
According to the invention of claim 17, the balance link can be mounted such that the proximal end of the swing link supporting the pivot shaft or the support shaft of the cutter can be engaged with the drive shaft, and the balance weight can be attached to one end of the swing link. Since the cutter is movably connected and the cutter is vertically movable and returned to the original position, the cutter can be vertically moved and returned to the original position by the balance weight and its mounting position.

According to the eighteenth aspect of the invention, since the pressing member is formed of an elastic member and the elastic member is formed in a ring shape, it can be held without damaging the chestnut skin and the elastic member can be easily made according to the shape of the chestnut skin. It can be deformed and kept in close contact with the chestnut skin.
According to the invention of claim 19, the protrusion height of the cutter is adjustably provided via the balance spring or balance weight and the mounting position thereof, so that a simple configuration can be achieved without requiring complicated and expensive equipment such as a sensor. The behavior at the time of cutting of the cutter and the cutting into the chestnut skin can be adjusted.
The invention of claim 20 is provided with a holder capable of holding both sides of the chestnut placed on the immovable guide rail, the holder comprising a pair of pressing members capable of holding the both sides of the chestnut and the guide rail; A pair of sandwiching arms provided on the pressing member, the pair of sandwiching arms are rotatably connected in the inward and outward directions of the chestnut, and the lower part of the sandwiching arm is normally urged to the chestnut side Thus, a holder that can hold a chestnut and hold it at a fixed position on the guide rail can be easily configured, and a cut made by a cutter moving toward the chestnut can be formed smoothly and stably.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a chestnut skin incision forming device to which the present invention is applied, wherein a rotatable cutter is used to move chestnuts to this cutter. In the front view which looked at the incision formation apparatus of the chestnut skin of FIG. 1 from back, the linkage mechanism of the drive motor of the incision side is abbreviate | omitted. It is a top view which expands and shows the principal part of the chain conveyor applied to the conveyance conveyor of this invention. It is a front view of FIG. It is sectional drawing in alignment with the AA of FIG.

It is the top view which expands and shows the periphery of the cutter in FIG. 1, and is notching showing one part. FIG. 7 is an enlarged front view showing a cutter applied to the present invention, a part of which is shown in cross section. FIG. 6 is an enlarged front view showing a swing adjustment mechanism of a cutter at a cut position of a chestnut skin applied to the present invention, in which a swing link and a balance link are connected and a balance weight is attached to the balance link; It is explanatory drawing which shows the cut condition of the seat part by the cutter of this invention, and shows the relationship between the movement of a chestnut, and the rocking displacement of a cutter.

(A) is a cross-sectional view showing the cutting situation of the seat by the cutter of the present invention, (b) is an explanatory view showing the cutting situation of the seat by the cutter, incised in a curved line along the chestnut skin of the seat It is rare. It is an explanatory view showing a 2nd embodiment of the present invention, and shows an important section of a rocking adjustment mechanism of a cutter. It is an explanatory view showing a 3rd embodiment of the present invention, and shows an important section of a rocking adjustment mechanism of a cutter. (A) is explanatory drawing which shows the 4th Embodiment of this invention, and is sectional drawing which expands and shows the cutting condition of the side skin with the cutter, (b) is a BB line of the figure (a) It is sectional drawing which follows.

(A) is a top view which shows the 5th Embodiment of this invention, is using the disk-shaped cutter which does not rotate, and is moving the chestnut to this cutter. (B) is a top view which expands and shows the said cutter. (A) is a top view which expands and shows the principal part of the 6th Embodiment of this invention, and using the plate-shaped cutter which does not rotate, the chestnut is moved to the tip part of this cutter. (B) is a side view which expands and shows the said cutter. In the front view showing the principal part of a 7th embodiment of the present invention, a chestnut is fixed on a guide rail, a cutter is moved to this chestnut and a cut is formed in a seat. It is sectional drawing which expands and shows the holder of a chestnut applied to 7th Embodiment.

In the front view showing the important section of the 8th embodiment of the present invention, a non-rotating cutter is held in a fixed position on a guide rail, and a chestnut is moved to this cutter to form a cut. In a front view showing a ninth embodiment of the present invention, a framework is rotatably provided immediately below a chestnut pressed and fixed on a guide rail, and a cutter provided on each side of the framework is brought into contact with a seat It forms an incision. In the front view showing the 10th embodiment of the present invention, a chestnut is supported on a cutter on the inner side of a sector frame, and this chestnut is rocked by a cylinder to form a notch in a seat In the front view showing the 11th embodiment of the present invention, a chestnut holds a chestnut by a holder and this is made to contact a cutter of a fixed position, and a cut is formed in a seat.

Hereinafter, the embodiment of the present invention applied to, for example, processing for forming a chestnut cut of a general variety before baking roasted chestnut will be described. In FIG. 1 to FIG. It is formed in a rectangular shape of 40 cm wide, and legs 2 project downward at four corners of its bottom surface, and its lower end is installed on the floor surface 3.
A pair of pivoting shafts 4 and 5 are vertically erected so as to be vertically pivotable at both end portions in the longitudinal direction of the table base 1, and cylindrical worm wheels 6 and 7 are attached to their lower end portions. The worms 8 and 9 are in mesh with the worm wheels 6 and 7, respectively.

The worms 8 and 9 have leads formed in different directions from each other, are coaxially disposed on the drive shaft 10, and one end thereof is linked to the drive motor 12 via the reduction gear 11.
Therefore, the power of the drive motor 12 is decelerated by the reduction gear 11 and transmitted to the drive shaft 10, and transmitted to the worm wheels 6, 7 via the worms 8, 9 in different directions, and coaxial with the wheels 6, 7 The pivoting shafts 4 and 5 are rotatable in different directions.

A pair of sprocket gears 13 and 14 are disposed apart from each other directly above the table base 1 at the upper portion of the pivot shafts 4 and 5, and the chains 15 and 16 constituting a chain conveyor are on these sprocket gears 13 and 14 It is wrapped.
The inner moving strokes of the chains 15 and 16 are arranged closely in parallel and at least across the chestnut loading position P and the unloading position Q, and form a narrow chestnut moving space between them.

The chains 15 and 16 are configured substantially the same, and they are formed into an endless chain by connecting the overlapping portions of the upper and lower outer links 17 and the inner link 18 with pins.
Bent pieces 19 and 20 are provided in the middle of the outer periphery of the outer links 17 and 17, and a rectangular rubber plate 21 is disposed on the outside of the bent pieces 19 and 20, and screws 22 are screwed into the rubber plate 21 from the outside. The screw is attached to a nut (not shown) embedded in a rubber plate 21 which is an elastic member.
A pressing rubber 23, which is a ring-shaped pressing member capable of being displaced inward and outward directions, is disposed outside the rubber plate 21, and the pressing rubber 23 is formed in a ring shape having the same width as the rubber plate 21. It is disposed at a middle high position outside the rubber plate 21.

When the chain conveyor moves inward, the chains 15 and 16 approach and move in the same direction, and the pressing rubbers 23 and 23 which are elastic members are located inside them, and the leather is interposed between the pressing rubbers 23 and 23 The chestnut 24 is attached, and the chestnut skins on both sides thereof are held by the elasticity of the pressing rubbers 23, 23.
In this case, in the embodiment, the pressure rubber 23 is integrally formed with the rubber plate 21. However, the pressure rubber 23 and the rubber plate 21 may be separately formed, and these may be integrally connected by screws 22. It is possible.

Guide rails 25, 25 formed of a pair of metal rods are immovably disposed at least immediately above the inner moving stroke of the chains 15, 16, at least over the loading position P and the unloading position Q of the chestnut. The seat 26a of the chestnut 26 is placed on the top and slid so as to be able to be transported in the direction of the cutter described later.
A frame 27, 28 is installed at an intermediate position of the inner moving stroke of the chains 15, 16, and plate-like chain guides 29, 30 are fixed on the frame 27, 28.
The chain guides 29 and 30 are disposed so that their side surfaces can be engaged with the chains 15 and 16 to prevent the chains 15 and 16 from bending and swinging, and to hold the chestnut 26 with a constant clamping force by the pressure rubbers 23 and 23. It is possible to grant.

On the other hand, on the side of the front end portion of the chains 15, 16, a gantry R is installed at substantially the same height as the table machine base 1, a drive motor 31 is disposed on the gantry R, and its drive shaft 32 is a bearing 33, 34 is rotatably supported. A drive pulley 35 is fixed between the bearings 33 and 34, and U-shaped brackets 36 are disposed on both sides of the pulley 35, and the drive shaft 32 is rotatably supported by the pair of bending pieces 36a and 36a. There is.
One end of the rocking link 37, 38 is supported on the outer side of the bending pieces 36a, 36a so as to be capable of raising and lowering, and is slidably arranged on the adjacent bending pieces 36a, 36a and the bearing 34.
In the embodiment, a long hole (not shown) is formed at one end of the swing link 37, and the drive shaft 32 is inserted into the long hole so as to be engageable.

One end of the balance link 39 is movably connected to one end of the outer swing link 38 in the same manner as the swing link 38, and they are connected via a radial journal (not shown) disposed outside the drive shaft 32. The swing link 38 and the balance link 39 are rotatably connected about the journal.
In this case, it is possible to form an elongated hole (not shown) at one end of the swing link 38, insert the drive shaft 32 into the long hole so as to be engageable, and configure the swing link 38 to be able to raise and lower. is there.

  The balance weight 40 is detachably attached to an appropriate position of the balance link 39, determines the weight of the weight 40 and the mounting position on the balance link 39, and the driving shaft 32, the moment by the driving shaft 32, That is, the rocking link 38 is urged to rotate counterclockwise in FIG. 8 with the above-mentioned journal as a fulcrum, and the upper part of the cutter blade of the cutter described later is projected on the guide rails 25, 25. The cut height to the seat portion 26a and the behavior of the cutter can be adjusted.

A U-shaped bracket 41 is disposed inside the other ends of the swing links 37 and 38, and the driven shaft 42, which is a pivot shaft, is rotated between the pair of bending pieces 41a and 41a via the bearings 43 and 44. It is supported movably.
A pulley 45 is fixed to the driven shaft 42 between the bending pieces 41a and 41a, a belt 46 is wound around the pulley 45 and the pulley 35, and the power of the drive shaft 32 is transmitted to the driven shaft 42 via the pulleys 35 and 45. It is possible to transmit.

  The inner end of the driven shaft 42 is extended immediately below the middle position of the inner moving stroke of the chains 15 and 16 and a pair of disk spacers 47 and 48 are disposed apart from each other at the shaft end and between them A disk-shaped cutter 49 having a plurality of serrated cutter blades 49a formed on the circumferential surface thereof is attached to the.

The upper portion of the cutter blade 49a is usually disposed so as to project directly above the guide rails 25 and 25. The projecting height h is adjusted as a cutting height with respect to the seat portion 26a according to the size and type of chestnuts. The cut length along the chestnut skin 51 in the seat portion 26a is set by the height, and the cut margin e from the chestnut skin 51 of the seat portion 26a to the inner side is set by the cut length.
In the embodiment, since the incision of a certain depth is formed along the shape of the seat portion 26a in a curved line of about 1/3 or less of the circumferential surface of the chestnut, this is compared to the case of incision in a straight line. The cut length is formed longer, which makes it easier to peel off after the cut.

The protruding height h of the cutter blade 49a can be adjusted, for example, by adjusting the weight of the balance weight 40 or its attachment position, and adjusting the moment by the balance weight 40.
In addition, the cut length and the cut margin e relate to the ease of peeling of the roasted chestnut and the appearance of the cut portion, and the cut depth to the actual meat portion and the peelability of the chestnut skin, and further the hygiene of the cut portion Affects the texture and taste of baked chestnuts.

That is, the chestnut 26 is conveyed to the position of the cutter 49, the upper side portion of the seat 26a contacts the cutter blade 49a, and is cut at the projection height h corresponding to the contact position.
Thereafter, as the chestnut skin is cut and cut, the cutter blade 49a is pushed down against the biasing force of the swing links 37 and 38, the balance link 39, and the balance weight 40, and the cutter blade 49a is resistant to cutting. It behaves according to the biasing force, is curved and displaced inward along the shape of the chestnut skin 51 of the seat 26a, and forms a cut 50 of a certain depth.
In the embodiment, 2 to 3 mm is set as a cutting margin e with respect to the seat portion 26, and the cutting into the actual meat portion 52 is suppressed as much as possible.

The disk spacers 47, 48 are disposed outside the cutter 49 to prevent the movement of the cutter 49 and engage with the chestnut skin 51 when cutting with the cutter blade 49a, and the cutting depth or depth of the cutter blade 49a. Is made regulatable.
Bosses 51 and 52 are provided on the outer surfaces of the spacers 47 and 48 in a protruding manner, and the driven shaft 42 is inserted into the through holes (not shown). A threaded portion 53 is formed at the end of the shaft of the driven shaft 42, and a nut 54 is screwed into the threaded portion 53 so that the nut 54 abuts against the end face of the boss 51, and the disk spacer 47 is moved with this. The cutter 49 can be held between the spacers 47 and 48.

  In addition, in the figure, 55 is an onion skin that is a chestnut skin 51 covering the side circumferential surface of the chestnut 26, and the seat portion 26a is located at the end thereof, and 56 and 57 are disposed on both sides of the table base 1 Of the drive shaft 10.

  The chestnut skin incision forming method and apparatus configured as described above are provided with a transportation mechanism and a cutting mechanism for the chestnut 26, among which the transportation mechanism for the chestnut 26 is installed on the table base 1, and Sprocket gears 13 and 14 are disposed at the front and back, and endless chains 15 and 16 constituting an endless chain conveyor are wound around these sprocket gears 13 and 14.

  The inner moving strokes of the chains 15 and 16 are arranged in parallel and parallel to at least the carry-in position P and the carry-out position Q of the chestnut 26, and the guide rails 25 and 25 of the seat 26 a of the chestnut 26 at the carry-in position P It is placed on top, and both sides of the demon skin 55 are held between the pressing rubbers 23, 23 and transported in a standing position toward the cutter 49, and the cutter blade 49a cuts the upper part of the seat 26a and then retracts from the cutter 49 To carry out.

The chains 15 and 16 have bending pieces 19 and 20 protruding from the outer middle positions of the outer links 17 and 17, and the rectangular rubber plate 21 and a ring via screws 22 on the outside of the bending pieces 19 and 20. Is attached and configured.
In this case, although the rubber plate 21 and the pressing rubber 23 are integrally formed in the embodiment to reduce the number of parts, it is possible to separately manufacture them and connect them with the screws 22, and so on Can facilitate the manufacture.

The rotary shafts 4 and 5 of the sprocket gears 13 and 14 are projected downward of the table base 1, the worm wheels 6 and 7 are attached to the shaft ends, and the wheels 6 and 7 are disposed coaxially with the drive shaft 10. The worms 8 and 9 having different lead angles from each other are engaged, and the drive shaft 10 is supported by bearings 56 and 57 and linked to the drive motor 12.
Further, the chain guides 29 and 30 are disposed on the inner side of the inner moving stroke portions of the chains 15 and 16 to prevent twisting and swinging of the chains 15 and 16 and to stabilize the circumferential rotation.

On the other hand, the cutting mechanism of the chestnut 26 is disposed adjacent to the side end of the table base 1, and the drive shaft 32 linked to the drive motor 31 is arranged on the side of the base 1, and its bearing 33, One end of the rocking links 37 and 38 is supported so as to be capable of rocking or raising and lowering in the vertical direction with the drive shaft 32 as a fulcrum between 34.
A U-shaped bracket 36 is disposed between the swing links 37 and 38, and the drive pulley 35 is fixed to the inside of the bracket 36 so as to be able to move with the drive shaft 32.

A U-shaped bracket 41 is disposed between the other ends of the swing links 37 and 38, and a driven shaft 42 is mounted on them, and the driven shaft 42 is rotatably supported via bearings 43 and 44.
A driven pulley 45 is fixed to the inside of the bracket 41 so as to be able to move together with the driven shaft 42, and a belt 46 is wound around these pulleys 45 and 35. The power of the drive motor 31 is via the drive pulley 35 and the driven pulley 45. , Transmittable to the driven shaft 42.

  One end of the balance link 39 is axially supported and coupled to one end of the one swing link 38 via a radial journal (not shown), and a predetermined weight balance is made at an appropriate position of the one end of the balance link 39 The weight 40 is attached, and the moment due to the balance weight 40 urges the swinging links 37, 38 so as to pivot upward about the drive shaft 32 or the journal as a fulcrum, and the cutter 49 at the shaft end of the driven shaft 42. Fix the

One end of the driven shaft 42 is disposed immediately below an intermediate position of the inner moving stroke of the chains 15 and 16. The cutter 49 and the disk spacers 47 and 48 are attached to the other end of the driven shaft 42 and fixed.
At that time, the upper portion of the cutter blade 49a is positioned so as to project right above the guide rail 25 and its projecting height h, in other words, the cutting height with respect to the seat portion 26 is adjusted. Adjust the incision length along 51, and facilitate the peeling of baked chestnuts and improve the appearance after incision by this incision length.

The protrusion height h can be adjusted, for example, by adjusting the weight or mounting position of the balance weight 40 and adjusting the moment by the balance weight 40 without requiring complicated and expensive control devices such as position sensors. Therefore, it can be easily and inexpensively manufactured.
Further, the incision is formed on the inward side of the chestnut skin 51 in the seat portion 26a so that the incision margin e can be formed thin, and the incision is formed in a curved line of about 1/3 or less of the chestnut. Therefore, the length of the cut is longer than in the case of cutting this into a straight line, which makes it possible to easily peel off after cutting.

As described above, the transport mechanism of the chestnut 26 is installed on the table base 1, which is about 30 cm long and about 40 cm wide and is a horizontally long rectangular table base 1, and is disposed on a pair of sprocket gears 13 and 14 disposed close to the left and right of the base 1. The chains 15 and 16 are wound to form a chain conveyor in a planar manner to make the installation space compact.
The chain conveyor basically comprises general-purpose chains 15 and 16, and a bending piece 20 is formed on the outside of the link, to which a rubber plate 21 and a displaceable ring-shaped pressing rubber 23 are attached to hold a chestnut 26 It makes it possible to release troublesome holding work by the worker.

The cutting mechanism of the chestnut 26 is disposed close to the side end of the table base 1, and engages the drive pulley 32 and one end of the swing links 37 and 38 with the drive shaft 32 linked to the drive motor 31. It is possible to arrange the driven shaft 42 at the separated position of the drive shaft 32, and the other ends of the swing links 37 and 38 are engageable with the driven shaft 42 so that the driven shaft 42 can be displaced up and down. There is.
One end of the balance link 39 is rotatably supported on and coupled to one end of the one swing link 38, that is, the journal, and the balance weight 40 is attached to the other end of the link 39. 39 and movably bias the swing link 38 upward.

  Then, one end of the driven shaft 42 is disposed immediately below the middle position of the inner moving stroke portion of the chains 15 and 16, the cutter 49 is rotatably disposed at the axial end portion, and the cutter blade 49 a of the guide rail 25. It is disposed so as to be able to get in and out directly above, and when the chestnut 26 abuts the cutter 49, the cutter 49 can be pushed down against the biasing force.

Thus, the cutting mechanism of the chestnut 26 cuts the cutter blade 49a up and down from the guide rail 25 at the time of cutting the cutter 49 without requiring a complicated and expensive control device such as a sensor, and cuts the seat 26a by a constant depth. Is made stable.
The upper portion of the cutter blade 49a of the cutter 49 is always projected right above the guide rail 25 through the swing link 38 and the balance weight 40, and the projection height h is the maximum at no load before and after cutting. It is placed in the position and abuts on the chestnut 26 and is gradually pushed down after the start of the incision and placed in the lowermost position directly below the chestnut 26.

That is, the cut 50 in the seat 26 by the cutter blade 49a is cut at the tip position in the transport direction and corresponds to the projection height h position of the cutter blade 49a, and is cut at the lowermost position directly below the chestnut 26 .
This situation is as shown in FIG. 9, and the locus of the incision 50 is formed in a gentle curved line which protrudes downward, and is cut inward in a curved line on the curved chestnut skin 51 of the seat 26a. The cut into the part 52 is avoided as much as possible.

Therefore, the appearance of the incision 50 is good without impairing the texture, and by avoiding the incision in the actual meat portion 52, the capacity reduction of the actual meat portion 52 is suppressed, and the hygiene of the actual meat portion 52 is secured. It is possible to prevent the decrease in umami taste.
Moreover, since the incision 50 is formed in a curved line shape over 1/3 round or less of the chestnut, the incision length can be made longer as compared to the case where the incision is incised in a straight line, You can easily

In the case of forming a cut in the chestnut 26 before processing the roasted chestnut by using the method and apparatus for forming a cut in the chestnut skin configured as described above, a container in which a large number of chestnuts 26 are accommodated at the loading position P of the chestnut 26 Prepare an empty container (not shown) at the delivery position Q of the chestnut 26.
Then, the drive motor 12 of the transport mechanism is driven, the drive shaft 10 is rotated to rotate the coaxial worms 8, 9, and the worm wheels 6, 7 meshed with the worms 8, 9 are mutually different directions. The rotary shafts 4, 5 supporting them are moved in unison, and the sprocket gears 13, 14 are rotated in different directions to cause the chains 15, 16 to rotate in different directions.

  Therefore, the inner moving strokes of the chains 15 and 16 move in the same direction, and the ring-shaped pressing rubbers 23 and 23 sandwich the guide rails 25 and 25 via the bending pieces 20 and the rubber plate 21 inside the same. It moves in the direction, and the holding space of chestnuts 26 is formed between them. This situation is as shown in FIG.

  Thereafter, the drive motor 31 of the cutting mechanism is driven to turn the drive shaft 32 to turn the drive pulley 35, and the power is transmitted to the driven pulley 45 via the belt 46 to turn the pulley 45. The driven shaft 42 is moved to move the cutter 49 fixed to the end of the driven shaft 42.

Under such circumstances, the chestnut 26 is held at the loading position P, its seat 26a is placed on the guide rails 25 and 25 and its length direction is held along the guide rails 25 and 25 in a standing posture , The posture is maintained, and it sends in between the press rubbers 23 and 23.
In this way, both sides of the chestnut 26 are sandwiched by the pressing rubbers 23, 23, and the movement thereof is restrained and fed to the cutter 49 side.

  At that time, since the pressing rubbers 23 and 23 are formed in a ring shape having a hollow inside, the pressing rubbers 23 and 23 are rich in elasticity, and when in contact with both sides of the chestnut 26, they deform easily and quickly to a curved part of the chestnut 26. Familiar, according to various shapes and sizes of chestnut 26 tightly sandwich. This situation is as shown in FIG.

Thus, when the chestnut 26 is held between the pressing rubbers 23 and 23 and approaches the cutter 49, and the front part of the seat 26a in the feed direction contacts the cutter blade 49a, the chestnut skin 51 of the seat 26a protrudes the cutter blade 49a. It is cut at height h. This situation is as shown in FIG. 8 and FIG.
At this time, since the chestnuts 26 are held between the pressing rubbers 23 and 23 at both sides and restrained, the incision can be easily and smoothly performed.

Then, when the chestnut 26 is cut into the cutter blade 49a, the cutter 49 is pressed by its reaction force, and is pushed down against the biasing force of the swing links 37, 38, the balance link 39 and the balance weight 40 supporting this. .
Thereafter, when the chestnut 26 moves in the same direction, the contact area between the cutter blade 49a and the chestnut 26 gradually increases, its resistance gradually increases, the biasing force of the cutter 49 decreases, and the cutter 49 gradually descends, The locus is formed along the inside of the skin 51 in a curved line. This situation is as shown in FIG.

When the chestnut 26 moves to a position immediately above the cutter 49, the contact area is maximized, the resistance thereof is maximized, the urging force is minimized, and the cutter 49 is pushed down to the lowermost position.
After this, when the chestnut 26 passes over the cutter blade 49a, the contact area gradually decreases, and its resistance gradually decreases to recover the biasing force, and the contact with the cutter blade 49a is released, and the seat 26a is released. Finish cutting. This situation is as shown in FIG.

  After completion of the cutting, the pressing rubbers 23, 23 sandwich both sides of the chestnut 26 for a while, convey them to the downstream side of the guide rails 25, 25, and move to the rear of the sprocket gears 13, 14; , 23 are released and dropped from the rear of the unloading position Q and collected in the container.

As described above, in the embodiment, since the side of the chestnut 26 is held and the cut 50 is automatically inserted in the seat portion 26a, and the work by the operator is not required, the safety and mass productivity of the cut 50 can be achieved. Can improve.
Moreover, since a constant shallow cut is formed in the seat portion 26a over about 1/3 or less of the chestnut 26, the cut length is longer than in the conventional case where the cut is formed over 3/4 of the circumference. Decrease, and you can peel off faster.

Further, after the incision, the incision 50 in the seat portion 26a is inconspicuous, and there is no fear that the texture and appearance will be impaired. In addition, since the cut into the actual meat portion 52 is avoided as much as possible, the hygiene of the actual meat portion 52 can be secured, and the decrease in umami taste can be prevented.
Therefore, the quality of baked chestnuts is prevented from being degraded, and in the case of skin peeling, since the incision is formed in a curved line, the incision length is formed longer than when it is cut in a straight line, Peeling through incisions is easy, and the sides are held for ease and skill.

In the embodiment, the baked chestnut is applied to a cut into the chestnut skin before baking, but when it is used for a cake or the like other than the baked chestnut, after peeling the chestnut skin 51 by the method described above, for example, a microwave oven It can respond by heating with an etc. and peeling astringent skin on the surface.
As described above, in the embodiment, a general variety of chestnut peel which peels astringent hide and onion peel separately is coped with, for example, a chestnut peel which can peel peel on astringent peel and onion peel easily. It can be used in a wider range of applications than conventional devices of this type.

11 to 20 show another embodiment of the present invention, in which the same reference numerals are used for the components corresponding to the above-described embodiments.
Among these, FIG. 11 shows the second embodiment of the present invention, and this embodiment shows another form of biasing means for the cutter 49 or the swing link 38, and the above-mentioned balance link 39 and balance weight 40 are omitted. And a balance spring 58 consisting of a compression coil spring is inserted between the bearing portion of at least one of the swing links 38 and the floor 3 or the fixed portion, and the swing link 38 is counterclockwise centered on the drive shaft 32 by its elasticity. The structure is simplified and the installation space is compacted without requiring a complicated and expensive control device.

  FIG. 12 shows a third embodiment of the present invention, which relates to an application of the second embodiment, and in which the balance link 39 and the balance weight 40 described above are omitted and one end of the swing link 38 is One end of a balance spring 59 consisting of a tension coil spring is latched and the other end of the spring 59 is latched on the immovable portion 60 immediately above, and the elasticity of the spring 59 causes the swing link 38 to rotate counterclockwise around the drive shaft 32 The structure is simplified and the installation space is compacted without requiring a complicated and expensive control device.

FIG. 13 shows a fourth embodiment of the present invention, in which the side skin of the chestnut 26 is placed on the guide rails 25, 25 and the seat 26a and the pointed end 26b of the chestnut 26 are provided. The cut rubber 50 is sandwiched between the pressing rubbers 23 and 23 and the cut 50 is formed on the side of the chestnut 26 by the cutter 49 so that the cut 50 is formed on the other portion than the seat portion 26a.
In this case, as shown in FIG. 13 (b), the incision 50 is formed in a concave curved line along the shape of the side skin 55, extending about 1/3 to 1/2 on the inner side thereof. ing. Therefore, the length of the incision is made longer than that of the seat portion 26a so that peeling can be easily performed.

FIG. 14 shows a fifth embodiment of the present invention, which moves toward the cutter 49 while sandwiching the chestnut 26 and causes the cutter 49 to stand still without rotating, and the balance weight 40 and The swinging links 37 and 38 urge the cutter 49 so as to move up and down and return to the original position.
For this reason, the drive motor 31, the drive shaft 32, the drive pulley 35, and the belt 46 for cutting are omitted, and the drive shaft 32 is configured as the support shaft 61 in a stationary state to simplify the configuration and reduce the equipment cost, and the power consumption To reduce operating costs.

  In this embodiment, the disk-like cutter 49 is stopped at a fixed position, and the chestnut 26 having its both sides held by the pressing rubber 23 is moved toward the cutter 49 to sharpen the cutter 49 at the central portion of the seat 26a. Rubbing and cutting into the pointed end, and the resistance at that time displaces the cutter 49 downward to form a cut 50 of constant depth along the circumferential surface of the seat 26a.

  As described above, in this embodiment, instead of rotating the cutter 49, the cuts 26 are formed by making the chestnuts 26 stand still, so that the widening of the cut by the clams of the cutting blade 49a is suppressed, and the slit-like cuts 50 It is possible to improve the appearance and reduce the amount of chips discharged due to the widening of the cut.

  FIG. 15 shows a sixth embodiment of the present invention, which relates to an application of the fifth embodiment, wherein the cutter 49 is formed in a horizontally long plate shape instead of a disk shape, and its upper end portion Are formed at the sharp pointed end, plate-like side spacers 62, 63 are attached instead of the disk spacers 47, 48 on both sides, and the upper end thereof is disposed directly below the pointed end of the cutter 49 It is made engageable and the cut 50 of the cutter 49 is regulated.

FIGS. 16 and 17 show a seventh embodiment of the present invention, which relates to applications of the second, fifth, and sixth embodiments, wherein the guide conveyors 25, 25 are directly below the conveyer 64. A horizontal movement unit is disposed, and the rack 65 is fixed on the conveyor 64 so as to be movable in the same manner, and one end of the swing link 67 is pivotally connected to one end of the rack 65 via a pivot 66 vertically. At the other end, a disc-like or plate-like stationary cutter 49 is vertically movably attached via a support shaft 61, and a balance spring 58 is inserted between the support shaft 61 and the frame 65, and the pivot 66 is fixed by its elasticity. The swing link 67 is biased to be rotatable in the counterclockwise direction around the center.
In this case, the disk-like cutter 49 can be configured to be rotatable.

On the other hand, the seat 26a of the chestnut 26 is placed on the guide rails 25 and 25 and the holder 68 is disposed at the fixed position of the guide rail 25. Both sides of the chestnut 26 are held by the holder 68. 25 and 25 so as to stably form a cut in the seat 26 a of the chestnut 26.
The holder 68 is capable of pivoting an intermediate portion of the holding arms 70 and 70 via the pin 71, the pressing member 69 having the same shape as the pressing rubber 23, the holding arm 70 fixed to the outside of the pressing member 69, and It comprises a connecting frame 72 to be connected, and spring receivers 73, 73 are provided in the middle of the connecting frame 72 so as to protrude, and a spring 74 is interposed between the spring receiver 73 and the upper portion of the holding arm 70.

And, by the elasticity of the springs 74, 74, the holding arms 70, 70 are provided so as to be rotatable inward and outward around the pin 71, and the lower parts of the holding arms 70, 70 are always capable of turning toward the chestnut 26 side. The inner lower end portion of the pressing member 69 is pressed against the guide rail 25 so that the holder 68 can be held by the guide rail 25.
Therefore, the holder 68 can be held at a fixed position of the guide rails 25 and 25 and can hold the chestnut 26 at that position.

Then, the holding arms 70, 70 are pressed inward, the diameter between the lower portions of the holding arms 70, 70 is expanded, and the chestnut 26 is inserted between the pressing members 69, 69. Thereafter, the holding arms 70, 70 are The pressing force is released, and the lower portions of the holding arms 70, 70 are pivoted inward by the elasticity of the springs 74, 74, and the chestnut 26 is held between the pressing members 69, 69.
In this manner, the chestnuts 26 are held on the guide rails 25, and after the cut 50 is formed by the cutter 49, the holding arms 70, 70 are pressed inward to expand the diameter between the lower portions of the holding arms 70, 70. Take out chestnut 26.

  In the figure, reference numeral 75 denotes a pressing cylinder provided upright on the connecting frame 72. The pressing cylinder 75 is slidably inserted into the base cylinder 76 immediately above, and the set spring 77 is interposed between the stationary portion 60 in the base cylinder 76 and the pressing cylinder 75. By inserting the elastic body, the holder 68 is biased downward via the pressing cylinder 75, and the chestnut 26 is pressed on the guide rail 25 so that the standing posture can be stably held.

Under such a condition, the conveyer 64 is driven to move the rack 65 and the swing link 67 in the same way to bring the cutter 49 close to the chestnut 26 fixed at the fixed position of the guide rail 25. The pointed end portion is cut into the seat portion 26a, and the resistance at that time displaces the cutter 49 downward of the guide rail 25 so as to cut along the outer shape of the seat portion 26a.
Thus, in this embodiment, the chestnut 26 is fixed at a fixed position on the guide rail 25 instead of moving to the cutter 49 side, and instead of fixing the cutter 49 in fixed position, it is moved to the chestnut 26 side, It is made to be able to respond to various cut forms of chestnut skin.

FIG. 18 shows an eighth embodiment of the present invention, which relates to an application of the fifth embodiment, in which a non-rotating cutter 49 is disposed so as to protrude at a fixed position of the guide rail 25. The chestnut 26 is moved to form the incision 50, and the resistance at that time is countered by the balance spring 58 and the set spring 77 so that the incision 50 of a certain depth can be formed in the chestnut skin. In the drawing, reference numeral 78 denotes a cylinder holder disposed immediately above the guide rail 25.
As described above, in this embodiment, the chestnut 26 is moved by pressing and moving toward the non-rotating cutter 49 disposed at the fixed position of the guide rail 25, and the cut 50 of the fixed depth is fixed to the seat 26a by the fixed length. It is possible to form.

FIG. 19 shows a ninth embodiment of the present invention, which relates to an application of the sixth embodiment, wherein a chestnut 68 is mounted on a guide rail 25 via a holder 68, a pressing cylinder 75 and a base cylinder 76. The holding frame 26 is held at a fixed position, and the frame 80 is disposed vertically below the chestnut 26 so as to be vertically rotatable about the drive shaft 79.
The frame 80 is provided so that it can be turned manually or automatically 90 °, and the tip end of the cutter 49 is cut into the seat portion 26a at the uppermost position approaching the guide rail 25, and the cut 50 of a certain depth is a certain length It is possible to form.

The frame 80 has a square front shape, and a base 65 is fixed to each base frame 81, and one end of a swing link 67 is rotatably connected to one end of the base 65 via a pivot 66. A balance spring 58 is inserted between the support shaft 61 at the other end and the rack 65 to bias the support shaft 61 upward. A non-rotating cutter 49 is supported on the support shaft 61, and the upper pointed end of the sharp cutter circumferential surface is disposed so as to project between the guide rails 25 25.
In the figure, reference numeral 82 denotes a bearing plate on which the bearing of the drive shaft 79 is mounted, and 83 denotes a bracket connecting the intersections of the base frames 81. The bracket 83 and each side of the bearing plate 82 are connected via a connecting plate 84. ing.

  As described above, in this embodiment, the chestnuts 26 are held at the fixed positions of the guide rails 25 by the holding tool 68 or the like, and the non-rotating cutters 49 provided on each side of the construction frame 80 toward the chestnuts 26 are approached and separated. The upper tip end of the cutter 49 is cut into the seat portion 26a when it is moved back, so that a cut 50 of a certain depth can be formed along the circumferential surface of the seat portion 26a with a certain length.

  FIG. 20 shows a tenth embodiment of the present invention, in which a sector-shaped sector frame 85 is provided so as to be vertically rotatable about a rotary shaft 86, and at the middle portion of the chord-side base frame 87. The linear cutter 89 is fixed with the pointed end portion directed to the arch frame 88, and convex stoppers 90 are provided on both sides thereof.

On the other hand, a recess 91 is provided in the middle part of the arch frame 88, a base cylinder 77 is mounted in the recess 91, a pressing cylinder 75 is accommodated inside the recess, and a set spring 77 is inserted between them. Is held on the side of the cutter 89, and the seat 26a can be brought into contact with and cut into the pointed end of the cutter 89.
In the posture of the chestnut 26, the seat 26a swings on the tip of the cutter 89 by gravity and the rotation angle of the sector frame 85, and the tip end on the opposite side of the seat 26a can be pressed and held by the pressing cylinder 75. ing.

  As described above, in this embodiment, the chestnut 26 on the tip of the cutter 89 is swung by gravity and the rotation angle of the sector frame 85, and the seat 26a is pressed against the tip of the cutter 89 to cut it. A length 50 can be formed along the circumferential surface of the seat portion 26a.

  FIG. 21 shows an eleventh embodiment of the present invention, in which a holder 68 is attached to a lower portion of an operating lever 92 pivotable about a pin 91 via a base cylinder 76 and a chestnut 26 is held. It is possible. Then, the chestnut 26 held by the holder 68 is disposed so as to be able to contact the cutter 94 provided at the bottom of the base frame 93, and the rotation angle of the control lever 92 is changed. It is pressed against the portion and oscillated, so that it is possible to form a cut 50 of a constant load on the circumferential surface of the seat portion 26a.

  Thus, the method and apparatus for forming a chestnut skin incision according to the present invention form a curved linear incision of a certain depth in the chestnut skin along its circumferential surface shape, and improve the appearance of the incision to obtain a baked chestnut meal. While improving the feeling, avoid cutting into the actual meat as much as possible, prevent the capacity reduction of the actual meat, lengthen the cutting length, make it easy to take out the actual meat, and secure the taste In addition, it is possible to promote automation and safety and rationalization of cuts in chestnut skin without requiring complicated and expensive control equipment, and compact and lightweight installation space can be achieved, for example, processing of roast chestnuts and chestnuts of various varieties. It is suitable for peeling of

23 Elastic member (pressing rubber)
25 guide rail 26 chestnut 26a seat 37, 38 rocking link 40 balance weight 42 pivot shaft (following shaft)
47, 48 Disc spacer 49 Cutter 49a Cutter blade

DESCRIPTION OF SYMBOLS 50 cut 51, 55 chestnut skin 52 real meat part 58, 59 balance spring 62, 63 side spacer 68 holding fixture 69 pressing member 70 pinching arm h protrusion height e cut margin

Claims (20)

  In the method for forming a cut in the chestnut skin by cutting the chestnut skin with a cutter, the cutter is moved close to and away from the thickness direction of the chestnut skin and the chestnut or cutter is moved close to the corresponding cutter or chestnut side A method for forming a chestnut skin incision, comprising forming a curved linear incision of a fixed depth along the circumferential surface of the tree.   The method for forming incisions in chestnut skin according to claim 1, wherein the cutter is placed in a stationary position without rotating or rotating.   The method for forming incisions in chestnut skins according to claim 1, wherein the upper circumferential surface of the cutter is disposed so as to protrude a predetermined height above the moving area of the chestnuts.   The method for forming a chestnut skin incision according to claim 1, wherein the seat portion is lowered and the chestnut is held in a standing position and moved to the cutter side to form a cut in the seat portion.   The method for forming a cut of chestnut skin according to claim 1, wherein the both sides of the pointed portion opposite to the seat portion are held and moved toward the cutter to form a cut in the side skin of the side skin.   In the apparatus for forming a cut in the chestnut skin which enables a cut to be formed in the chestnut skin by a cutter, the cutter is provided so as to be able to move close to and away from the thickness direction of the chestnut skin and the chestnut or cutter is brought close to the corresponding cutter or chestnut side A chestnut-skin incision forming apparatus characterized in that it is possible to form a curved linear incision of a certain depth along the circumferential surface of the chestnut skin.   The apparatus for forming incisions in chestnut skin according to claim 1, wherein the cutter is placed in a stationary position without rotating or rotating.   7. The apparatus for forming incisions in chestnut skin according to claim 6, wherein the upper circumferential surface of the cutter is disposed to project a predetermined height above the moving area of chestnut.   9. The apparatus for forming incisions in chestnut skin according to claim 8, wherein the protruding height of the cutter is adjustable.   8. The apparatus for forming incisions in chestnut skin according to claim 7, wherein the rotatable cutter is formed in a disk shape, and a plurality of cutting edges are formed at the peripheral end.   8. The apparatus for forming incisions in chestnut skin according to claim 7, wherein the stationary cutter is formed in a disk shape or a rectangular plate shape, and its peripheral portion is sharpened.   The chestnut skin according to claim 10 or 11, wherein disc spacers of slightly smaller diameter or side spacers of slightly smaller height are disposed on both sides of the cutter, and the ends of the spacers are arranged to be engageable with the circumferential surface of chestnut skin. Cutting device.   The apparatus for forming a chestnut skin incision according to claim 6, wherein the seat is lower and the chestnut is held in a standing position so as to be movable toward the cutter so that the seat can be cut.   7. The apparatus for forming a cut of chestnut skin according to claim 6, wherein both sides of the pointed portion opposite to the seat portion are held so as to be movable toward the cutter, and a cut can be formed in the side skin.   A pair of endless conveyors are arranged in a plane close proximity, and the adjacent inner moving strokes of the conveyors are arranged movably in the same direction, and a plurality of pressing members are provided on the outer periphery of the conveyors. A movable member is disposed so as to be able to hold a chestnut between opposing pressing members of the inner moving stroke portion, and a cutter is disposed at an intermediate portion of the inner moving stroke portion, and the cutter is moved up and down and in the original position. 8. A chestnut-skin incision forming apparatus according to claim 6, wherein the apparatus is provided so as to be able to return to the back and the curved linear incision can be formed along the shape of chestnut skin via the cutter.   The rotary shaft or support shaft of the cutter may be provided on the side of the transfer conveyor, and the protrusion may be urged upward through a balance spring to move the cutter up and down and return to the original position. The apparatus for forming incisions in chestnut skin according to claim 15, provided in.   A proximal end of a swing link supporting the pivot shaft or the support shaft of the cutter is disposed so as to be engageable with a drive shaft, and a balance link capable of attaching a balance weight to one end of the swing link The apparatus for forming a chestnut-skin incision according to claim 15, wherein the cutter is vertically movable and can be returned to the original position.   The chestnut-skin incision forming apparatus according to claim 15, wherein the pressing member is formed of an elastic member, and the elastic member is formed in a ring shape.   18. The chestnut skin incision forming device according to claim 9, wherein the protrusion height of the cutter is adjustably provided via the balance spring or balance weight and its mounting position.   A holder capable of holding both sides of the chestnut placed on the immovable guide rail is provided, the holder comprising a pair of pressing members capable of holding the both sides of the chestnut and the guide rail, and a pair provided on the pressing members The chestnut skin according to claim 6, comprising: a sandwiching arm, and the pair of sandwiching arms are rotatably connected in the inward and outward directions of the chestnut, and the lower part of the sandwiching arm is always biased rotatably to the chestnut side. Incision forming device.

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