JP2007006805A - Cracking apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an epoch-making cracking apparatus extremely excellent in practicality, capable of surely carrying out cracking of shell of ginkgo nut, etc., without damaging the contents and capable of efficiently obtaining ginkgo nut, etc., free from damage in shell-free state. <P>SOLUTION: The cracking apparatus cracks only hard member (b) of a lump body 1 in which a hard member (b) is provided on the surface of a soft member (a). When the lump body 1 is nipped by a receiving body 10 and a pressing part 3 and the pressing part 3 is connected through a pressure-transmitting part 4 to a pressure-generating body 2 and when the hard member (b) of the lump body 1 nipped by the pressing part 3 and the receiving body 10 is broken by pressure of the pressing part 3 and the moving amount of the pressing part 3 moving in the receiving body direction is rapidly increased, connection between the pressing part 3 and the pressure-generating part 2 is released and transmission of pressure from the pressure-generating part 2 through the pressure-transmitting part 4 to the pressing part 3 is blocked. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a splitting device.

  The ginkgo seeds have an inner seed coat in the outer seed coat, and the inner seed coat consists of a hard outer shell and an edible fruit (ginkgo) in the outer shell. As this ginkgo, a ginkgo (commonly known as mercury apricot) that is harvested at an early stage before the outer seed coat ripens is traded at a high price.

  By the way, the shell that covers the ginkgo (outside shell) is conventionally split by hand. Therefore, if the hard shell of the ginkgo is split with pliers, it usually gets tired in about 1 hour, and then the strength of the grip is weak. If the shell does not crack or the shell is cracked, the contents will be damaged, and it will not be possible to efficiently obtain a ginkgo without a good shell without any scratches. If it comes out, it will not become a product.)

  On the other hand, even in the conventional automatic shell splitting device that automates the above-mentioned shell splitting work, it is extremely difficult to split the shell without damaging the contents (about 2% of non-defective products). Cannot be obtained efficiently.

  The present invention has been made in view of the current situation as described above. For example, ginkgo shells can be reliably cut without damaging the contents, and a good shellless ginkgo with no scratches can be efficiently obtained. It is an object of the present invention to provide an innovative splitting device that can be obtained and is extremely practical.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A splitting device for splitting only the hard member b of the lump 1 provided with a hard member b on the surface of the soft member a, the lump 1 being sandwiched between the receiving body 10 and the pressing part 3, and this pressing part 3 is connected to the pressing force generation unit 2 via the pressing force transmission unit 4, and the hard member b of the lump 1 sandwiched between the pressing unit 3 and the receiving body 10 by the pressing force of the pressing unit 3. When the amount of movement of the pressing portion 3 that gradually moves in the direction of the receiving body suddenly increases, the connection between the pressing portion 3 and the pressing force generating portion 2 is canceled, and the pressing force transmitting portion 4 It is based on the splitting device characterized by being comprised so that transmission of the pressing force from the said pressing force generation part 2 to the said pressing part 3 via may be interrupted | blocked.

  The splitting device according to claim 1, wherein the pressing force generating section 2 is configured to apply a pressing force to a rotating body 12 that rotates about a shaft 11, and the rotating body 12 includes the pressing section. 3 is pivotally mounted, and the rotating body 12 is provided with a pressing force transmitting portion 4 that moves and abuts against the pressing portion 3. The pressing force applied to the rotating body 12 by the pressing force generating portion 2 is The amount of movement of the pressing portion 3 acting on the pressing portion 3 via the pressing force transmitting portion 4 and cracking the hard member b of the lump 1 and gradually moving in the receiving direction is the pressing force transmission. When the amount of movement of the portion 4 becomes larger, the contact between the pressing portion 3 and the pressing force transmitting portion 4 is released, and the pressing force generating portion 2 through the pressing force transmitting portion 4 is changed to the pressing portion 3. The present invention relates to a splitting device characterized in that the transmission of the pressing force is cut off.

  Further, in the splitting device according to claim 2, an interposing arm body 13 and a locking arm body 5 pivotally attached to the rotating body 12 are adopted as the pressing force transmitting portion 4, and the locking arm body 5 and the locking arm body 5 The intervening arm body 13 is locked and connected, and the intervening arm body 13 and the pressing portion 3 are connected to each other by a reverse movement preventing mechanism 8 so that the pressing force generating portion 2 acts on the rotating body 12. The pressure acts on the pressing portion 3 via the locking arm body 5 and the interposing arm body 13, the hard member b of the lump 1 is broken, and the pressing portion 3 and the intervening arm gradually moving in the receiving body direction. When the movement amount of the body 13 becomes larger than the movement amount of the locking arm body 5, the locking arm body 5 and the interposition arm body 13 are unlocked, and the locking arm body 5 and the interposition arm body are released. Also related to the splitting device, wherein transmission of the pressing force from the pressing force generating part 2 to the pressing part 3 through 13 is cut off. It is.

  4. The splitting device according to claim 3, wherein the rotating arm 12 is rotated about the shaft 11 in a state where the intervening arm body 13 and the locking arm body 5 are locked. When the abutting portion 13 abuts on the pressing portion 3 to exert a pressing force on the pressing portion 3 and the hard member b of the lump 1 is broken by the pressing portion 3, the pressing portion 3 and the intervening arm body 13 are reversed. The present invention relates to a splitting device that is configured to rotate with respect to the rotating body 12 in the direction of the receiving body without being moved backward by the movement preventing mechanism 8.

  Further, in the splitting device according to any one of claims 1 to 4, the reverse movement prevention mechanism 8 includes a reverse movement prevention body 15 provided in the pressing portion 3 and having locking teeth 14 arranged in parallel. The present invention relates to a splitting device characterized in that it is composed of a locked portion 28 provided on the intervening arm body 13 and locked with the locking teeth 14.

  The splitting device according to any one of claims 1 to 5, wherein the pressing force generating portion 2 includes a cam plate 16 and a cam follower 17 provided on the rotating body 12. It is concerned.

  Further, in the splitting device according to any one of claims 3 to 6, re-engagement for re-engaging the engagement arm body 5 released from engagement with the interposition arm body 13 with the interposition arm body 13 again. The present invention relates to a splitting device characterized in that a mechanism 6 is provided.

  The splitting device according to claim 7, wherein the re-locking mechanism 6 includes a cam plate 18 and a cam follower 19 provided on the locking arm body 5.

  The splitting device according to any one of claims 1 to 8, wherein the lump 1 is a seed of a plant covered with a hard shell and having fruits stored therein. It is concerned.

  Since the present invention is configured as described above, if the hard member of the lump is broken, the transmission of the pressing force to the pressing portion that presses the lump is cut off, and only the hard member is securely inserted without damaging the soft member. Therefore, for example, it is an epoch-making breaking device excellent in practicality that can efficiently obtain, for example, a good shellless ginkgo with no scratches.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings showing the operation of the present invention.

  The lump 1 is sandwiched and pressed between the pressing portion 3 and the receiving body 10 to which the pressing force in the receiving direction from the pressing force generating portion 2 is transmitted through the pressing force transmitting portion 4, and the rigid member of the lump 1 When b is divided, the amount of movement of the pressing portion 3 that is gradually moving in the direction of the receiving body suddenly increases, and the connection between the pressing portion 3 and the pressing force generating portion 2 is eliminated. This pressing force generating portion 2 Is interrupted from the transmission of the pressing force to the pressing portion 3.

  Therefore, the pressing force does not act on the soft member a, and therefore, only the hard member b on the surface of the soft member a can be cracked. For example, a good shellless ginkgo without a flaw can be efficiently obtained. Will be able to.

  For example, in the case of a device that sets a predetermined amount of stroke and only breaks the hard member b, the setting of the stroke is troublesome when the shape or the like of the hard member b is not uniform, but according to the configuration of the present invention, There is no nuisance.

  Specific embodiments of the present invention will be described with reference to the drawings.

  The present embodiment is a splitting device that splits only the hard member b of the lump 1 in which the hard member b is provided on the surface of the soft member a, and the lump 1 is sandwiched between the receiving body 10 and the pressing portion 3. The pressing portion 3 is connected to the pressing force generating portion 2 through the pressing force transmitting portion 4, and the mass is sandwiched between the pressing portion 3 and the receiving body 10 by the pressing force of the pressing portion 3. When the hard member b of 1 is cracked, and the amount of movement of the pressing part 3 that is gradually moving in the direction of the receiving body suddenly increases, the connection between the pressing part 3 and the pressing force generating part 2 is eliminated, The transmission of the pressing force from the pressing force generating unit 2 to the pressing unit 3 via the pressing force transmitting unit 4 is cut off.

  In this embodiment, the hard shell of the seed of the plant covered with the hard shell as the mass 1 and containing the fruit inside is broken. Specifically, the inner seed coat enters the outer seed coat. This inner seed coat breaks the outer shell covering the ginkgo of ginkgo seeds consisting of a hard outer shell and edible fruits (ginkgo) in the outer shell.

  The pressing force generating unit 2 is configured to apply a pressing force to a rotating body 12 that rotates about a shaft 11, and the pressing unit 3 is pivotally attached to the rotating body 12. 12 is provided with a pressing force transmission part 4 that moves and abuts against the pressing part 3, and the pressing force acting on the rotating body 12 by the pressing force generation part 2 passes through the pressing force transmission part 4. Acting on the portion 3, the hard member b of the lump 1 is cracked, and when the movement amount of the pressing portion 3 gradually moving in the receiving direction becomes larger than the movement amount of the pressing force transmission portion 4, The contact between the pressing portion 3 and the pressing force transmitting portion 4 is released, and the transmission of the pressing force from the pressing force generating portion 2 to the pressing portion 3 through the pressing force transmitting portion 4 is interrupted. It is configured.

  Each part will be specifically described.

  The rotating body 12 is configured to rotate with respect to the base plate 7 with a shaft 11 provided on the base plate 7 as a fulcrum.

  The rotating body 12 is provided with a shaft 20, and a rod-shaped pressing portion 3 having a predetermined length is pivotally attached to the shaft 20. Accordingly, the pressing portion 3 rotates about the shaft 20 with respect to the rotating body 12.

  A stopper 3 a is provided at the base end of the pressing portion 3, and this stopper 3 a is urged against the shaft 11 by the elastic body 36. Therefore, the pressing portion 3 is normally urged in the receiving direction, but the movement of the pressing portion 3 in the receiving direction is restricted by the stopper 3a coming into contact with the shaft 11.

  A receiving body 10 is provided at a position facing the pressing portion 3 on the base plate 7. Further, a transport unit 21 for transporting the mass 1 is provided between the receiver 10 and the pressing unit 3, and means for introducing the mass 1 into the transport unit 21 is provided in parallel with the base plate 7, for example. Such as a hopper mechanism.

  In the present embodiment, after one lump 1 is introduced into the transport unit 21 and the lump 1 is sandwiched and pressed between the pressing portion 3 and the receiver 10, the hard member b of the lump 1 is broken, The lump 1 obtained by breaking the hard member b is led out from the transport unit 21, and then the new lump 1 is introduced into the transport unit 21.

  The pressing force from the pressing force generating unit 2 is transmitted to the pressing unit 3 via a pressing force transmitting unit 4 provided on the rotating body 12.

  The pressing force generator 2 includes a cam plate 16 provided on the base plate 7 and a cam follower 17 (roller) provided on the rotating body 12. The cam plate 16 is provided by a gear mechanism 22 provided on the back side of the base plate 7. It is configured to rotate. Reference numeral 34 in the drawing denotes an elastic body that urges the rotating body 12 to the side opposite to the receiving body 10 side.

  Specifically, the cam plate 16 is set in an eccentric shape, and after the lump 1 is introduced into the transport unit 21, a pressing force is applied little by little. When the hard member b of the lump 1 is cracked, the pressing force is applied. Until the next lump 1 is introduced, it is set to a shape that does not generate as much pressing force as possible.

  The pressing force transmission unit 4 includes an intervening arm body 13 pivotally attached to the rotating body 12 by a shaft 23, and a locking arm body 5 pivotally attached to the rotating body 12 by a shaft 24 and engaged with the interposing arm body 13. It consists of

  Specifically, the intervening arm body 13 is provided between the locking arm body 5 and the pressing portion 3, one end side is pivotally attached to the rotating body 12, and the other end side is the locking arm body 5. A locked portion 27 that locks with a locking portion 26 provided on the door is provided.

  Further, a reverse motion preventing body 15 having locking teeth 14 (ratchet teeth) arranged in parallel is pivotally attached to the pressing portion 3 by a shaft 37, and the reverse motion preventing body 15 and the base side of the pressing portion 3 Is urged by the elastic body 30.

  The locking tooth 14 is locked with the inner edge of the insertion hole 29 formed in the interposed arm body 13 (the locked portion 28 corresponding to the ratchet claw). The interposed arm body 13 is locked in the receiving direction. It moves over 14 teeth one by one, and movement in the opposite direction, that is, reverse movement is prevented. Reference numeral 31 in the figure denotes an unlocking body for releasing the locking between the reverse motion preventing body 15 and the inner edge of the insertion hole 29 when the hard member b of the lump 1 is broken. The contact surface with the back movement preventing body 15 is set to a tapered surface that is inclined downward toward the locking arm body 5, and the elastic body 30 is slid by the back movement preventing body 15 sliding on the tapered surface. The back-motion preventing body 15 and the intervening arm body 13 are unlocked against the urging force.

  Reference numeral 35 in the drawing denotes an elastic body that urges the pressing portion 3 and the intervening arm body 13 so as to be separated from each other.

  The locking arm body 5 has a substantially central portion pivotally attached to the rotating body 12, and a locking portion 26 that locks with the locked portion 27 of the intervening arm body 13 is provided on one end side, and the other end side is on this engagement side. It is connected to an elastic body 25 (spring) that urges the stop arm 5 counterclockwise. Therefore, the locking arm 5 rotates counterclockwise around the shaft 24 when the locking connection with the intervening arm 13 is released.

  Further, the edge of the locked portion 27 opposite to the locking portion 26 of the locking arm body 5 is formed in an R shape.

  In this embodiment, as the cam plate 16 of the pressing force generator 2 rotates, the rotating body 12 is rotated in the receiving direction, and the rotating body 12 includes the intervening arm body 13 and the locking arm body. When the shaft 11 is rotated around the fulcrum in a state where the shaft 5 is locked, the intervening arm 13 is brought into contact with the pressing portion 3 and presses the mass 1 by the pressing portion 3. When the hard member b of the lump 1 is broken by 3, the reaction from the hard member b disappears, and suddenly the pressing part 3 rotates separately (independently) from the rotating body 12 in the receiving direction, As a result, the latching portion 26 of the latching arm body 5 and the latched portion 27 of the interposing arm body 13 are unlocked.

  Further, in the present embodiment, a re-locking mechanism 6 is provided that locks the locking arm body 5 released from the locking with the interposition arm body 13 with the interposition arm body 13 again. The re-locking mechanism 6 includes a cam plate 18 and a cam follower 19, in this case, one side edge 19 of the locking arm body 5, and the cam plate 18 is rotated by a gear mechanism 32 provided on the back side of the base plate 7. Is configured to do.

  Specifically, the cam plate 18 is set in an eccentric shape, and, contrary to the cam plate 16 of the pressing force generating unit 2, after the lump 1 is introduced into the transport unit 21, the locking arm Without pressing the body 5, when the hard member b of the lump 1 is broken, it is gradually pressed, and the locking arm body 5 and the intervening arm body 13 that are unlocked until the next lump 1 is introduced, It is set to a shape that generates a pressing force capable of locking the.

  The re-engagement mechanism 6 and the gear mechanisms 22 and 32 of the pressing force generating unit 2 are configured to interlock and rotate via a gear body 33 provided on the back surface side of the base plate 7.

  The operation of this embodiment will be described with reference to FIGS.

  As shown in FIG. 2, when the lump 1 is transported to the transporting section 21 between the receiving body 10 and the pressing section 3, the rotating body 12 is rotated toward the receiving body 10 by the pressing force generating section 2. The pressing portion 3 urged by the elastic body 36 abuts on the lump 1, and a locking arm body 5 provided on the rotating body 12 and an intervening arm body 13 locked to the locking arm body 5. Also, the elastic body 35 and the elastic body 36 are brought close to each other while being rotated toward the receiving body 10 and contracting the elastic body 35 and the elastic body 36 to the back side of the pressing portion 3.

  At this time, the reverse motion preventing body 15 is inserted into the insertion hole 29 little by little while getting over the locking teeth 14 one by one.

  As shown in FIG. 3, when the intervening arm 13 is brought into contact with the back side of the pressing portion 3, the pressing force from the pressing force generating portion 2 is transmitted to the pressing portion 3, and the pressing force is also transmitted to the lump 1. The At this time, the cam plate 18 of the re-locking mechanism 6 and the one side edge 19 of the locking arm body 5 are not locked (the locking connection between the subsequent locking arm body 5 and the intervening arm body 13). For release.)

  As shown in FIG. 4, the hard member b of the lump 1 is cracked, and at the same time, the pressing force acting on the lump 1 is released, and the elastic body 36 is accelerated and the rotation speed is increased momentarily. The part 3 rotates relative to the rotating body 12 in the receiving direction separately from the rotating body 12.

  At this time, as shown in FIG. 5, simultaneously with the pressing portion 3, the intervening arm body 13 that engages with the back-motion preventing body 15 also rotates together with the pressing portion 3, so that the pressing speed is increased momentarily. There is a difference in the rotational speed in the receiving direction between the portion 3 (and the intervening arm body 13) and the non-accelerated locking arm body 5 (rotating body 12), and the locking arm body 5 rotates with a delay. Therefore, the locking connection between the locked portion 27 of the intervening arm body 13 and the locking portion 26 of the locking arm body 5 is released, and the transmission of the pressing force to the pressing portion 3 is cut off. The

  Therefore, although the pressing part 3 accelerates in the direction of the receiver only for a moment, the transmission of the pressing force is interrupted by releasing the locking connection between the interposition member 13 and the locking arm body 5 at the same time. Thus, the pressing force does not act on the soft member a.

  That is, in this embodiment, the release of the pressing force when the hard member b of the lump 1 is broken is mechanically detected to prevent the transmission of the pressing force to the soft member a. Unlike the configuration in which reciprocating at a predetermined stroke, even if there is an individual difference in the size of the lump 1 to some extent, and even a lump 1 of a different type can be handled, it is extremely versatile.

  As shown in FIG. 6, when the locking connection between the interposing arm body 13 and the locking arm body 5 is released, the pressing amount of the rotating body 12 by the pressing force generating portion 2 decreases, and the elastic body 34 is attached. The space between the receiving body 10 and the pressing portion 3 is increased by the force. At this time, the back movement prevention body 15 abuts on the lock release body 31 and slides on the lock release body 31, and the locking teeth 14 of the back movement prevention body 15 and the locked portion 28 of the intervening arm body 13 Is released, and the intervening arm 13 is returned to the initial position (position where it is locked with the locking arm 5) by the urging force of the elastic body 35.

  As shown in FIG. 7, when the cam plate 18 of the re-locking mechanism 6 presses one side edge 19 of the locking arm body 5 to rotate the locking arm body 5 clockwise, the interposition of the initial position is performed. The arm body 13 and the locking arm body 5 are locked, and when a new lump 1 is introduced into the transport unit 21, the state returns to the state shown in FIG.

  In this embodiment, for convenience of explanation, the abdomen of the ginkgo shell as the lump 1 is shown to be sandwiched and pressed by the receiver 10 and the pressing unit 3 in the figure. These seams are arranged so as to be sandwiched and pressed.

  Since the present embodiment is configured as described above, the mass 1 is composed of the pressing portion 3 and the receiving body 10 to which the pressing force in the receiving direction from the pressing force generating section 2 is transmitted through the pressing force transmitting section 4. When the hard member b of the lump 1 is broken, the amount of movement of the pressing portion 3 that gradually moves in the direction of the receiving body increases rapidly, and the pressing portion 3 and the pressing force generating portion 2 The continuous arrangement is eliminated, and the transmission of the pressing force from the pressing force generating portion 2 to the pressing portion 3 is interrupted.

  Therefore, the pressing force does not act on the soft member a. Therefore, only the hard member b on the surface of the soft member a can be cracked, and a good shellless ginkgo without a flaw can be efficiently obtained. It will be possible.

  Furthermore, since the present embodiment mechanically detects the release of the pressing force when the hard member b of the lump 1 is cracked and prevents the transmission of the pressing force to the soft member a, the pressing portion 3 is predetermined. Unlike a configuration that reciprocates by a stroke, even if there is an individual difference in the size of the lump 1 to some extent or a lump 1 of a different type, it can be handled, and it is extremely versatile.

  For example, in the case of a device that sets a predetermined amount of stroke and only breaks the hard member b, the setting of the stroke is troublesome when the shape or the like of the hard member b is not uniform, but according to the configuration of the present invention, There is no nuisance.

  Therefore, in this example, when the hard member of the lump is broken, the transmission of the pressing force to the pressing part that presses the lump is cut off, and only the hard member can be reliably broken without damaging the soft member. Therefore, it is excellent in practicality that can efficiently obtain a ginkgo in a good shellless state without scratches.

It is a schematic explanatory top view of a present Example. It is a schematic explanatory drawing of a present Example. It is a schematic explanatory drawing of a present Example. It is a schematic explanatory drawing of a present Example. It is the expansion schematic explanatory drawing to which the principal part of the present Example was expanded. It is a schematic explanatory drawing of a present Example. It is a schematic explanatory drawing of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mass 2 Pressing force generation part 3 Pressing part 4 Pressing force transmission part 5 Locking arm body 6 Re-locking mechanism 8 Reverse motion prevention mechanism
10 receptor
11 axes
12 Rotating body
13 Intervening arm
14 Locking teeth
15 Anti-reverse body
16.18 Cam plate
17 ・ 19 Cam Follower
28 Locked part a Soft member b Hard member

Claims (9)

  A splitting device for splitting only a hard member of a lump provided with a hard member on the surface of a soft member, the lump being sandwiched between a receiver and a pressing part, and the pressing part via a pressing force transmission part The pressing member that is connected to the pressing force generation unit, and the hard member of the mass that is sandwiched between the pressing unit and the receiver is broken by the pressing force of the pressing unit, and gradually moves in the receiving direction. When the movement amount of the pressure increases rapidly, the connection between the pressing portion and the pressing force generating portion is canceled, and the pressing force is transmitted from the pressing force generating portion to the pressing portion via the pressing force transmitting portion. The splitting device is configured to be cut off.   2. The splitting device according to claim 1, wherein the pressing force generation unit is configured to apply a pressing force to a rotating body that rotates about a shaft, and the pressing unit is pivotally attached to the rotating body. The rotating body is provided with a pressing force transmitting portion that moves and contacts the pressing portion, and the pressing force that acts on the rotating body by the pressing force generating portion is applied to the pressing portion via the pressing force transmitting portion. When the hard member of the lump is cracked and the moving amount of the pressing portion gradually moving in the receiving direction becomes larger than the moving amount of the pressing force transmitting portion, the pressing portion and the pressing force transmission The splitting device is configured such that the contact with the portion is released, and the transmission of the pressing force from the pressing force generation unit to the pressing unit via the pressing force transmission unit is interrupted.   3. The split device according to claim 2, wherein an interposing arm body and a locking arm body pivotally attached to the rotating body are adopted as the pressing force transmitting portion, and the locking arm body and the interposing arm body are locked. The intervening arm body and the pressing portion are connected to each other by a reverse movement preventing mechanism, and the pressing force acting on the rotating body from the pressing force generating portion is via the locking arm body and the interposing arm body. When acting on the pressing part, the hard member of the lump is cracked, and the amount of movement of the pressing part and the intervening arm body gradually moving in the receiving direction becomes larger than the amount of movement of the locking arm body, The engagement between the locking arm body and the interposition arm body is released, and transmission of the pressing force from the pressing force generation portion to the pressing portion via the locking arm body and the interposition arm body is interrupted. A splitting device, characterized in that it is configured.   4. The splitting device according to claim 3, wherein the rotating body is rotated with the shaft as a fulcrum in a state where the intervening arm body and the locking arm body are locked, and the interposing arm body is in contact with the pressing portion. When a pressing force is applied to the pressing portion and the hard member of the lump is cracked by the pressing portion, the pressing portion and the intervening arm body do not move back by the reverse movement preventing mechanism and rotate in the receiving direction. A splitting device characterized in that it is configured to rotate with respect to.   5. The splitting device according to claim 1, wherein the reverse movement prevention mechanism is provided in the reverse movement prevention body provided in the pressing portion and provided with locking teeth in parallel, and the intervening arm body. A splitting device comprising the locking teeth and a locked portion to be locked.   6. The splitting device according to any one of claims 1 to 5, wherein the pressing force generating portion includes a cam plate and a cam follower provided on a rotating body.   The splitting device according to any one of claims 3 to 6, further comprising a re-locking mechanism that locks the locking arm body, which has been unlocked from the intervening arm body, with the intervening arm body again. A splitting device, characterized in that   8. The splitting device according to claim 7, wherein the re-locking mechanism includes a cam plate and a cam follower provided on the locking arm body.   9. The splitting device according to claim 1, wherein the lump is a plant seed covered with a hard shell and having fruit stored inside.

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