JP2019149953A - Lobster extending tool and lobster extending device - Google Patents

Abstract

To provide a lobster extending tool capable of maintaining a quality of an extended lobster constant, and to provide a lobster extending device including the lobster extending tool, and capable of extending a large amount of lobsters by continuously extending a plurality of lobsters.SOLUTION: A lobster extending tool 1 includes: a mounting part 2 enabling mounting a lobster 10; and a pressing part 3 with the base end side rotatably attached to the mounting part 2 so as to repeat a raised state and a fallen state to the mounting part 2. In a process that the pressing part 3 is in from a raised state to a fallen state to the mounting part 2, the pressing part 3 sequentially presses and extends a meat 12 of the lobster 10 from a tail 11 side. A lobster extending device includes: sprockets provided at an upstream side and a downstream side in a conveyance direction; endless chains wound around the sprockets; and the plurality of lobster extending tools 1 attached to the endless chains.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a shrimp stretching tool that stretches shrimp and a shrimp stretching apparatus that can continuously stretch a plurality of shrimp.

  There is a need for a technique for stretching shrimp when aligning a plurality of shrimp to a predetermined length.

  Shrimp can be stretched manually by the following procedure. First, put shrimp into the mold. Next, the shrimp in the mold is pressed by the pressing part. Then remove the shrimp from the mold.

  In this procedure, the pressing force depends on the skill level of the person who performs the work manually. Moreover, when extending several shrimp, it takes time in each procedure. Therefore, it is difficult to stretch a large amount of shrimp in the manual operation for stretching the shrimp by the above procedure.

  Patent Document 1 is an example of a stretching apparatus that can efficiently stretch a large number of objects to a certain length without depending on the skill level of a person who performs manually. The stretching apparatus of Patent Document 1 includes a molding member in which a fixed circular space is formed, and a flexible belt conveyor that is inserted into the circular space of the molding member while being deformed along the circular space. .

  The stretching device of Patent Document 1 has a regulating member attached to a belt conveyor at a predetermined interval in the running direction. The belt conveyor is deformed in a state where the object is placed between the regulating members moving back and forth in the traveling direction.

  The cross-sectional area of the regulating member is the same as the maximum cross-sectional area of the object after stretching. The interval between the regulating members moving back and forth in the traveling direction is the same as the maximum length in the traveling direction of the object after stretching.

JP 55-96085 A

  The stretching apparatus disclosed in Patent Document 1 is not suitable for stretching an object having a portion whose hardness differs greatly, such as a shrimp body and a tail. In the stretching device of Patent Document 1, the shrimp body, which is a soft part, is stretched and the shrimp body may be pressed against the tail even after the tail, which is a hard part, comes into contact with the regulating member. Therefore, the tail may damage the shrimp, and the quality of the stretched shrimp may deteriorate.

  In addition, the shrimp body that is a soft part may be stretched even after directly contacting the hard regulating member, and the shrimp body may be pressed against the regulating member. Therefore, the regulating member may damage the shrimp, and the quality of the stretched shrimp may deteriorate.

  Therefore, from the above points, the present invention is equipped with a shrimp stretching tool capable of maintaining the quality of shrimp after stretching, and the shrimp stretching tool, and by stretching a plurality of shrimp continuously, a large amount of An object is to provide a shrimp stretching apparatus capable of stretching shrimp.

  In order to solve the above-mentioned problem, the shrimp stretching tool according to claim 1 can repeat a placement part on which shrimp can be placed, a state of rising with respect to the placement part, and a state of falling down. In addition, the base end side has a pressing portion rotatably attached to the mounting portion, and the pressing portion is in a state of falling from a state of rising with respect to the mounting portion, The pressing portion sequentially presses and stretches the shrimp from the tail side.

  Since the shrimp stretching tool of claim 1 has a pressing portion that sequentially presses and stretches the shrimp from the tail side, the shrimp body is not stretched excessively and is not damaged. In the shrimp stretching tool according to claim 1, the shrimp body is stretched toward the tip side of the shrimp body. Therefore, the shrimp body can be prevented from being pressed against the tail.

  The shrimp stretching tool according to claim 1 is pivotally attached to the mounting portion so that the proximal end side of the pressing portion can be repeatedly raised and fallen with respect to the mounting portion. ing. Therefore, the shrimp stretching tool according to claim 1 puts the shrimp on the mounting part in a state of rising with respect to the mounting part, and the pressing part falls from the state of rising with respect to the mounting part. The process of pressing and stretching the shrimp in the process can be repeated accurately.

  The shrimp stretching tool according to claim 2 is the shrimp stretching tool according to claim 1, wherein the front end side of the pressing portion is placed in the above-described state in a process in which the pressing portion falls from a state where it rises with respect to the placing portion. By pushing toward the part, the shrimp body is sequentially pressed from the tail side.

  The shrimp stretching tool according to claim 2 operates in the same manner as the shrimp stretching tool according to claim 1, and the pressing part is pressed toward the mounting part, so that the pressing part is surely attached to the shrimp body. The operation | movement which presses sequentially from the tail side is realizable.

  The shrimp stretcher of claim 3 is provided with guided means for guiding the shrimp stretcher of claim 1 or 2 from a state in which the pressing portion is raised with respect to the mounting portion to a state in which it is collapsed. Yes.

  The shrimp stretching tool according to claim 3 operates in the same manner as the shrimp stretching tool according to claim 1 or 2, and after the shrimp is placed on the placing part, the pressing part is placed against the placing part by the guided means. It will fall from the state where it stood up. Therefore, the shrimp stretching tool of claim 3 can realize an operation in which the pressing part automatically presses the shrimp body sequentially from the tail side.

  A shrimp stretching tool according to claim 4 is the shrimp stretching tool according to any one of claims 1 to 3, wherein a depression is formed in the pressing portion, and the depression is in a state where the pressing portion is collapsed. The tail is located on the part where it is placed.

  The shrimp stretcher of claim 4 acts in the same manner as any of the shrimp stretchers of claims 1 to 3, and can prevent the shrimp tail from being crushed by the depression when the pressing portion is collapsed.

  The shrimp stretching tool according to claim 5 is the shrimp stretching tool according to any one of claims 1 to 4, wherein the mounting portion has a groove longer than the shrimp after stretching, and the shrimp can be placed in the groove. It has become.

  The shrimp stretching tool according to claim 5 operates in the same manner as the shrimp stretching tool according to any one of claims 1 to 4 and has a groove for placing shrimp, so that the shrimp before stretching can be easily positioned. it can.

  Furthermore, since the groove | channel of the shrimp extending | stretching device of Claim 5 is longer than the shrimp after extending | stretching, in the extending | stretching direction of a shrimp body, a shrimp body is not pressed against a hard thing.

  The shrimp stretcher of claim 6 is the shrimp stretcher of claim 5, wherein the groove has a portion whose width increases from the tail of the mounted shrimp toward the tip of the body.

  According to the shrimp stretching tool of the sixth aspect, the shrimp stretching tool of the fifth aspect functions in the same manner and has a shape in which the shrimp before the groove is stretched can be easily placed. The portion where the width of the groove is enlarged also serves as a reference for the position where the shrimp is placed before being stretched.

  Further, according to the shrimp stretching tool of claim 6, the width of the groove is increased in accordance with the shape of the shrimp body whose width is increased, so that the pressed shrimp body is strongly against the wall of the groove. It can prevent being pushed.

  Furthermore, according to the shrimp stretching tool of claim 6, in the stretched shrimp body, a portion where the width of the shrimp body increases from the shrimp tail to the tip of the body is easily formed. Can do.

  The shrimp stretching apparatus according to claim 7 is provided with sprockets respectively provided on the upstream side and the downstream side in the transport direction, an endless chain wound around these sprockets, and attached to the endless chain. And a plurality of shrimp stretching tools described in 1. above.

  According to the shrimp stretching apparatus of claim 7, a large amount of shrimp can be stretched continuously in a short time.

  The shrimp stretching apparatus according to claim 8 is the shrimp stretching apparatus according to claim 7, wherein the pressing portion is guided from a state where it rises with respect to the groove and falls, and the pressing portion falls with respect to the groove. Guiding means for guiding from a state to a standing state is provided.

  According to the shrimp stretching apparatus of the eighth aspect, the shrimp stretching apparatus operates in the same manner as the seventh aspect, and the shrimp is simply placed on the groove with the pressing portion rising with respect to the groove. , Ready to stretch shrimp.

  Further, in the shrimp stretching apparatus according to the eighth aspect, after the shrimp is placed on the placement part, the pressing part is brought into a state of falling from the state where the pressing part is raised with respect to the placement part. Therefore, the shrimp stretching apparatus according to the eighth aspect can realize an operation in which the pressing portion automatically presses the shrimp body sequentially from the tail side.

  A shrimp stretching apparatus according to a ninth aspect of the present invention is the shrimp stretching apparatus according to the seventh or eighth aspect, further comprising additional pressing means for pressing the front end side of the pressing portion in a state where the pressing portion is collapsed into the groove.

  According to the shrimp stretching apparatus of the ninth aspect, in addition to acting in the same manner as the shrimp stretching apparatus of the seventh or eighth aspect, the additional pressing means presses the distal end side of the pressing part toward the mounting part, so that the pressing part is An operation of sequentially pressing the shrimp from the tail side can be surely realized.

  Furthermore, according to the shrimp stretching apparatus of the ninth aspect, the additional pressing means can easily adjust the pressing force of the pressing portion, in addition to acting similarly to the shrimp stretching apparatus of the seventh or eighth aspect.

  The shrimp stretching tool according to any one of claims 1 to 6 can maintain a constant quality of shrimp after stretching. The shrimp stretching apparatus according to any one of claims 7 to 9 can stretch a large amount of shrimp by maintaining a constant quality of shrimp after stretching and stretching a plurality of shrimp continuously.

It is a front view of the shrimp stretcher of one embodiment of the present invention. It is sectional drawing of the shrimp extending tool of FIG. It is a top view of a part of shrimp stretching apparatus. It is a top view of a part of shrimp stretching apparatus. It is a side schematic diagram of a shrimp stretching device of one embodiment of the present invention. It is a perspective view of a part of shrimp stretching apparatus.

  A shrimp stretching tool 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2, (a) shows a state in which the pressing portion 3 stands up with respect to the mounting portion 2, and (b) shows a state in the middle of the pressing portion 3 being tilted with respect to the mounting portion 2. (C) shows the state in which the pressing part 3 has fallen with respect to the mounting part 2. An arrow A in FIGS. 1 and 2 indicates a direction in which the pressing portion 3 falls down with respect to the placement portion 2.

  FIG. 3 shows that in the shrimp stretching apparatus 100 described later, the pressing part 3 of the shrimp stretching tool 1b falls over the mounting part 2 from a state where the pressing part 3 of the shrimp stretching tool 1a rises with respect to the mounting part 2. It shows until the pressing part 3 of the shrimp stretching tool 1c falls to the mounting part 2 through a state in the middle of going.

  FIG. 4 shows that in the shrimp stretching apparatus 100 described later, the pressing part 3 of the shrimp stretching tool 1e rises with respect to the mounting part 2 from the state in which the pressing part 3 of the shrimp stretching tool 1d falls down with respect to the mounting part 2. It shows until the pressing part 3 of the shrimp stretching tool 1f rises with respect to the mounting part 2 through a state in the middle of going.

  An arrow B in FIGS. 3 and 4 indicates the conveyance direction of the shrimp stretching tool 1 from upstream to downstream in the shrimp stretching apparatus 100 described later.

  As shown in FIGS. 1 and 2, the shrimp stretching tool 1 includes a mounting portion 2 on which the shrimp 10 is mounted, and a pressing portion 3 whose base end is rotatably attached to the mounting portion 2. Have.

  The pressing part 3 can repeat a state where it rises with respect to the placing part 2 and a state where it falls down.

  The mounting portion 2 includes a fixed plate 21, a groove member 22 that is detachably attached to the fixed plate 21, and a support member 23 that rotatably supports the pressing portion 3.

  The groove member 22 has a groove 22a longer than the shrimp after stretching. As shown in FIGS. 2 and 3, the shrimp 10 can be placed in the groove 22 a with the tail 11 of the shrimp 10 facing the proximal end of the pressing portion 3.

  As shown in FIG. 3, the groove 22 a has a portion where the width of the groove 22 a increases from the tail 11 of the mounted shrimp 10 toward the tip of the body 12.

  The groove member 22 is fixed to the fixed plate 21 and can be removed from the fixed plate 21.

  For example, the mounting part 2 may not be mounted on the groove 22a when the groove member 22 is damaged by long-term use or depending on the size of the shrimp. Even in such a case, the mounting portion 2 can easily replace the groove member 22.

  In the process in which the pressing unit 3 changes from a state where it rises with respect to the mounting unit 2, the pressing unit 3 sequentially presses and stretches the body 12 of the shrimp 10 from the tail 11 side.

  The pressing unit 3 includes a main body 31 and a pressing member 32 that is detachably attached to the main body 31.

  In the same manner as the placement unit 2, the pressing unit 3 may have to be matched with the shape of the groove 22a exchanged depending on the size of the shrimp, for example, when the pressing member 32 is damaged due to long-term use. Even in such a case, the pressing portion 3 can easily replace the pressing member 32.

  As shown in FIGS. 1 and 2, the main body 31 is formed with a hook 31a. The hook 31a and the portion of the main body 31 facing the hook 31a correspond to guided means.

  As will be described in detail later, the guide rod 104 serving as a guide means is positioned in a space surrounded by the hook 31a and the portion of the main body 31 facing the hook 31a in the process of transporting the shrimp stretcher 1. It has become.

  As shown in FIG. 2, the pressing member 32 has a recess 32 a.

  In a state where the pressing portion 3 is collapsed, the recess 32a is positioned at a portion where the tail 11 of the shrimp 10 is placed.

  The rotation of the pressing unit 3 is guided by the long hole 23 a of the support member 23 of the mounting unit 2 and the protrusion 31 b of the main body 31 of the pressing unit 3.

  Next, the shrimp stretching apparatus 100 having the shrimp stretching tool 1 described above will be described.

  The conveyance direction in the following description means the vertical direction in the display of FIG. The upper side in the display of FIG. 5 is the upstream side in the transport direction. The bottom of the display in FIG. 5 is the downstream side in the transport direction.

  In the following description, the vertical direction refers to the horizontal direction in the display of FIG. The left in the display of FIG. 5 is the upper side in the vertical direction in the description. The right side in the display of FIG. 5 is the lower side in the vertical direction in the description.

  In the following description, the left-right direction refers to a direction perpendicular to the paper on which FIG. 5 is displayed. In the display of FIG. 5, the direction from the back side to the front side is the right side. The direction from the front side to the back side of the paper surface in the display of FIG. 5 is the left. The left and right direction in the following description is the left and right direction in the display of FIGS. 3 and 4.

  As shown in FIG. 5, the shrimp stretching apparatus 100 includes sprockets 101 and 102 provided on the upstream side and the downstream side in the transport direction, an endless chain 103 wound around these sprockets 101 and 102, and the endless chain. A plurality of shrimp stretching tools 1 attached to 103, a guide rod 104 as a guide means, and an additional pressing means 105 provided above the endless chain 103.

  The endless chain 103 is a roller chain. As shown in FIG. 5, as the sprockets 101 and 102 rotate, the endless chain 103 moves along a rounded rectangular track as viewed from the side, as indicated by an arrow C.

  Each shrimp stretching tool 1 moves linearly in a side view from the upstream sprocket 101 toward the downstream sprocket 102 while being on the upper side of the endless chain 103.

  Next, each shrimp stretching tool 1 rotates from the state above the endless chain 103 to the lower side of the endless chain 103 by rotating around the rotation center of the downstream sprocket 102 in a side view.

  Next, each shrimp stretching tool 1 linearly moves in a side view from the downstream sprocket 102 toward the upstream sprocket 101 in a state below the endless chain 103.

  Next, each shrimp stretching tool 1 rotates from the state below the endless chain 103 around the center of rotation of the upstream sprocket 101 in a side view and becomes the state above the endless chain 103 to the initial state. Return.

  As shown in FIG. 5, the guide bar 104 is provided outside the track of the endless chain 103 in a side view.

  The starting point 104 a of the guide rod 104 is located below the track of the endless chain 103 and near the upstream sprocket 101.

  The guide rod 104 extends from the start point 104a around the upstream sprocket 101, above the endless chain 103 going from upstream to downstream, and around the downstream sprocket 102.

  The end point 104b of the guide rod 104 is located below the track of the endless chain 103 and near the downstream sprocket 102.

  While the stretching tool 1 passes from the start point 104a to the end point 104b, the guide rod 104 is positioned in a space surrounded by the hook 31a and the portion of the main body 31 facing the hook 31a.

  Without the guide rod 104, the shrimp stretching tool 1 may fall down or hang down at an unintended timing due to gravity.

  For example, if the pressing part 3 falls when the operator places the shrimp 10 in the groove 22a by hand, the operator may be injured.

  Further, unnecessary noise may occur due to the pressing part 3 rising or drooping vigorously.

  In order to prevent the pressing portion 3 from falling or rising at an unintended timing, the start point 104a and the end point 104b of the guide bar 104 are set as the positions described above.

  As shown in FIGS. 3, 4, and 5, the guide rod 104 has a range 104 c, a range 104 d, and a range 104 e in order from the upstream to the downstream, above the endless chain 103 from upstream to downstream.

  As the guide bar 104 extends from the upstream side to the downstream side in the range 104c, the guide rod 104 bends downward as shown in FIG. 5 and turns from left to right as shown in FIG. 103 is approached.

  FIG. 6 shows a perspective view of the guide rod 104 approaching the endless chain 103. In FIG. 6, shrimp display is omitted.

  In the range 104d, the guide rod 104 extends from the upstream side to the downstream side while maintaining the state of being close to the endless chain 103.

  As the guide bar 104 extends from the upstream side to the downstream side in the range 104e, the guide rod 104 bends upward as shown in FIG. 5 and turns from right to left as shown in FIG. It is separated from 103.

  The shrimp stretching tool 1 is conveyed from the start point 104a to the end point 104b of the guide bar 104 in a state where the guide bar 104 is positioned between the hook 31a of the pressing part 3 and the portion of the main body 31 facing the hook 31a. It has become.

  As shown in FIG. 5, the additional pressing means 105 is provided above the endless chain 103 that flows from the upstream toward the downstream, and in a range in which the guide rod 104 is kept close to the endless chain 103.

  The additional pressing means 105 can be moved up and down in the direction of the arrow D. When the additional pressing means 105 is lowered, the distal end side of the pressing portion 3 of the shrimp stretching tool 1 positioned below the additional pressing means 105 is pressed downward by the lower end of the additional pressing means 105.

  Hereinafter, the operation in which the shrimp stretching apparatus 100 stretches shrimp will be described.

  The shrimp stretcher 1 that has passed the position corresponding to the starting point 104 a of the guide bar 104 is in a state in which the pressing part 3 hangs down with respect to the placement part 2.

  While the shrimp stretcher 1 is transported from a position corresponding to the start point 104a of the guide bar 104 to a position corresponding to the end point 104b, the pressing part 3 includes a portion facing the hook 31a of the pressing part 3 and the hook 31a of the main body 31. In this state, the guide rod 104 is located between the two.

  That is, while the shrimp stretching tool 1 is conveyed from the position corresponding to the start point 104 a of the guide bar 104 to the position corresponding to the end point 104 b, the pressing portion 3 is guided by the guide bar 104.

  The shrimp stretching tool 1 is further conveyed in the direction of arrow C from a position corresponding to the starting point 104a of the guide bar 104. The shrimp stretcher 1 rotates from the state below the endless chain 103 around the center of rotation of the upstream sprocket 101 in a side view and is above the endless chain 103.

  In the state where the shrimp stretching tool 1 is on the upper side of the endless chain 103, the shrimp stretching tool 1 is in a state where the pressing part 3 is raised with respect to the placement part 2.

  Shrimp are placed in the groove 22a of the shrimp stretching tool 1 in a state where the pressing portion 3 is raised.

  The shrimp stretching tool 1 is further conveyed in the direction of arrow C above the endless chain 103.

  As the shrimp stretching tool 1 is conveyed in the direction of the arrow C within a range corresponding to the range 104 c of the guide bar 104, the pressing unit 3 is guided by the guide bar 104 and rises with respect to the mounting unit 2. The state falls from the state.

  In the process in which the pressing portion 3 is brought into a collapsed state, the pressing portion 3 sequentially presses and stretches the shrimp from the tail side.

  Further, the shrimp stretching tool 1 is conveyed in the direction of arrow C in a range corresponding to the range 104 d of the guide bar 104. As shown in FIG. 1 (c), the shrimp stretching tool 1 is pushed downward by the lower end of the additional pressing means 105, the tip side of the pressing portion 3 descends under the additional pressing means 105.

  When the pressing portion 3 is pressed downward, the pressing portion 3 further presses and stretches the shrimp from the tail side.

  As the shrimp stretching tool 1 is conveyed in the direction of the arrow C within a range corresponding to the range 104e of the guide bar 104, the pressing unit 3 is guided by the guide bar 104 and falls down with respect to the placement unit 2. It will be in a state of standing up from the state.

  The shrimp stretching tool 1 rotates from the state above the endless chain 103 to the lower side of the endless chain 103 by rotating around the rotation center of the downstream sprocket 102 in a side view. The shrimp stretching tool 1 is in a state in which the pressing part 3 hangs down with respect to the mounting part 2.

  In the state of being on the lower side of the endless chain 103, the stretched shrimp falls from the groove 22a.

  The shrimp stretching tool 1 is conveyed in the direction of arrow C and passes through a position corresponding to the end point 104b of the guide bar 104.

  The shrimp stretching tool 1 after the stretched shrimp has fallen from the groove 22a in a state below the endless chain 103 can be washed with a liquid or the like.

  The cleaned shrimp stretching tool 1 is conveyed in the direction of arrow C and passes again through the position corresponding to the starting point 104a of the guide bar 104.

  As described above, the shrimp stretching apparatus 100 can repeat the operation in which the shrimp stretching tool 1 stretches shrimp.

  Although the said embodiment demonstrated the case where the stretched shrimp fell from the groove | channel 22a in the state which exists in the lower side of the endless chain 103, it is not limited to this. For example, the shrimp extended | stretched during rotation around the rotation center of the downstream sprocket in side view may fall from the groove | channel 22a.

  Although the said embodiment demonstrated the case where the part which opposes the hook 31a and the hook 31a of the main body 31 corresponds to a to-be-guided means, it is not limited to this. The guided means may be any shape that can be guided to the guiding means.

  In the above embodiment, the shrimp stretching apparatus 100 of FIGS. 3 to 6 is displayed so that the adjacent shrimp stretching tools 1 are separated from each other, but is not limited thereto. The shrimp stretching device may be provided in the endless chain so that adjacent shrimp stretching tools are adjacent to each other.

  Although the said embodiment demonstrated the case where it was the guide rod 104 which is a guidance means, it is not limited to this. The guide means only needs to be able to guide from a state where the pressing portion rises with respect to the placement portion to a state where the guide portion falls down by another mechanism.

  Although the said embodiment demonstrated the case where the guide rod 104 has a starting point and an end point as shown in FIG. 4, it is not limited to this. The start and end positions of the guide bar can be changed to arbitrary positions.

1,1a, 1b, 1c Shrimp stretcher 2 Placement part 3 Press part 10 Shrimp 11 Tail 12 Body 21 Fixed plate 22 Groove member 22a Groove 23 Support member 31 Main body 31a Hook 31b Protrusion 32 Press member 100 Shrimp stretcher 101 Upstream side Sprocket 102 Downstream sprocket 103 Endless chain 104 Guide rod 104
104a start point 104b end point 104c (guide bar) range 104d (guide bar) range 104e (guide bar) range 105 additional pressing means

Claims (9)

A placement section on which shrimp can be placed;
The base end side has a pressing portion that is rotatably attached to the mounting portion so that the standing state and the falling state can be repeated with respect to the mounting portion,
A shrimp stretching tool, wherein the pressing part sequentially presses and stretches the body of the shrimp from the tail side in a process in which the pressing part changes from a state where it rises with respect to the mounting part.   In the process in which the pressing portion is in a state of falling from the standing state with respect to the mounting portion, the tip side of the pressing portion is pressed toward the mounting portion, so that the pressing portion removes the shrimp body. The shrimp stretcher according to claim 1, wherein the shrimp stretcher is pressed sequentially from the tail side.   The shrimp stretching tool according to claim 1 or 2, further comprising guided means for guiding the pressing portion from a standing state to a falling state with respect to the mounting portion. A depression is formed in the pressing part,
The shrimp stretching tool according to any one of claims 1 to 3, wherein the depression is located at a portion where a tail of shrimp is placed in a state where the pressing portion is collapsed. The mounting portion has a groove longer than the shrimp after stretching,
The shrimp stretching tool according to any one of claims 1 to 4, wherein shrimp can be placed in the groove.   The shrimp stretching tool according to claim 5, wherein the groove has a portion whose width increases from the tail of the shrimp placed to the tip of the body. Sprockets respectively provided on the upstream side and the downstream side in the conveying direction;
Endless chains wound around these sprockets,
A shrimp stretching apparatus comprising a plurality of shrimp stretching tools according to claim 1 attached to the endless chain.   The shrimp stretching apparatus according to claim 7, further comprising a guide unit that guides the pressing portion from a standing state with respect to the groove to a falling state.   The shrimp stretching apparatus according to claim 7 or 8, further comprising an additional pressing unit that presses a distal end side of the pressing part in a state where the pressing part falls into the groove.

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