JP3151875U - Locking pin for scallop farming - Google Patents

Abstract

An object of the present invention is to provide a locking pin having a shape that makes it difficult for a scallop attached to a rope via a locking pin when scallops are cultivated. SOLUTION: A scallop with a scallop retaining piece 4 extending obliquely upward inward in the axial direction is provided at both end portions of a shaft portion 2, and the tip portion is bowl-shaped and the shape including the scallop retaining piece is substantially bowl-shaped. Engagement for scallop cultivation made of synthetic resin, provided with a locking portion 3 symmetrically, and provided with a rope retaining piece 5 that is spaced apart in the axial direction at the center of the shaft and protrudes obliquely upward so as to face inward in the axial direction A connecting pin 6 having a diameter smaller than that of the shaft portion 2 is provided from a portion 2b immediately after the base portion of the scallop retaining piece 4 to a portion 2c immediately before the base portion of the rope retaining piece 5, which is a stop pin. The cross-sectional area immediately after the base of the retaining piece is the smallest, the sectional area immediately before the base of the rope retaining piece is the largest, and the cross-sectional area continues from immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece. Make it bigger. [Selection] Figure 1

Description

  The present invention relates to an improvement of a locking pin for scallop cultivation that prevents the scallop from being pulled out of the locking pin when scallops are cultivated.

  A locking pin for scallop cultivation that has been used to cultivate scallops by penetrating in a direction perpendicular to the length direction of the rope, locking the scallops at the stoppers at both ends, hanging the rope underwater, Are known.

JP 2002-171862 A

9-11 is a figure explaining the subject by the latch pin (henceforth a latch pin) for the above-mentioned conventional scallop culture.
FIG. 9 is an explanatory diagram of an initial state in which the scallop is locked to the locking pin. The locking pin 101 penetrates through the rope 100 at a predetermined pitch interval in the length direction so as to be orthogonal to the rope 100. It is held and scallops are cultivated in the sea.

  At both ends of the shaft portion 102 of the locking pin 101, a hook-shaped locking portion 103 having a bowl shape in side view provided with scallop removal pieces 104, 104 extending symmetrically upward in the axially inward direction, 103 is formed, and a central portion of the shaft portion 102 is spaced to the left and right with an interval substantially equal to the diameter of the rope, and protrudes obliquely outward so as to face each other. Rope prevention pieces 105 and 105 are projected, and this portion of the rope 100 is sandwiched and held by the rope prevention pieces 105 and 105.

  Immediately after the scallop shell retaining pieces 104, 104 provided at the locking portions 103, 103 at both ends of the shaft portion 102 of the locking pin 101, the portions in front of the rope retaining pieces 105, 105 are formed thin (small diameter). And connecting portions (lower shaft portions) 106 and 106 between the shaft portion 101 and other thick portions (large diameter general portion of the shaft portion) are formed. In this state, a locking hole is formed in the ear pieces 108 and 108, and the locking portions 103 and 103 of the locking pin 101 are passed through the locking holes.

The locking hole portions of the scallops 107 and 107 are inserted and held through connecting portions 106 and 106 provided in front of both ends of the shaft portion of the locking pin 101, and the scallop retaining pieces 104 and 104 are prevented from coming off. This prevents scallops from falling off.
The connecting portions 106 and 106 are short, and the diameter (cross-sectional area) suddenly increases immediately after the portion where the diameter (cross-sectional area) is small.

The scallops 107 and 107 locked to both ends of the locking pin 101 grow and become larger and heavier, a large amount of deposits adhere to the shell, and this also increases the weight. A large load is applied to the scallop removal preventing pieces 104 and 104 due to the effect of vertical movement of the sword, resistance during landing, etc., and the thin connecting part 106 is extended by this influence, and the connecting part 106 is extended twice or more. This state is shown in FIG.
When the connecting portion 106 further extends from the state shown in FIG. 10 and the connecting portion 106 extends about three times or more, the locking pin 101 breaks in the fully extended state and is cultivated with great effort, and it is scallops in the middle of growth or landing. As shown in FIG. 11, the scallops that are about to come off fall off and become unrecoverable.

  The present invention prevents as much as possible the breakage of the connecting portion of the locking pin due to the above-described locking pin for scallop cultivation, the increase in weight of the scallop shell, the influence of waves, resistance during landing, etc. It is an object of the present invention to provide a locking pin with high scallop locking and support strength.

  In order to solve the above-mentioned problem, claim 1 is provided with a scallop retaining piece that extends obliquely upward inward in the axial direction at both ends of the shaft, and has a tip-like hook shape and a shape including the scallop retaining piece. Synthetic resin scallops that are provided with symmetrical hook-shaped scallops, and are provided with rope stoppers that are spaced apart in the axial direction at the center of the shaft and project diagonally upward so as to face inward in the axial direction. In the abutment pin for aquaculture, a connecting portion having a smaller diameter than the shaft portion is provided from immediately after the base portion of the scallop retaining piece to immediately before the base portion of the rope retaining piece, and the connecting portion is cut off immediately after the base portion of the scallop retaining piece. The area is the smallest, the sectional area immediately before the base of the rope retaining piece is the largest, and the sectional area continuously increases from immediately after the base of the scallop retaining piece to just before the base of the rope retaining piece. Features.

  According to a second aspect of the present invention, there is provided a scallop retaining piece that extends obliquely upward inward in the axial direction at both ends of the shaft, and has a hook-shaped tip and includes a scallop retaining piece that is substantially bowl-shaped. In the locking pin for scallop shell culture made of synthetic resin, provided with a rope retaining piece that is provided symmetrically, is spaced apart in the axial direction in the central part of the shaft part, and projects obliquely upward so as to face inward in the axial direction, From right after the base of the scallop retaining piece to immediately before the base of the rope retaining piece, a connecting portion having a smaller diameter than the shaft portion is provided, and the connecting portion is immediately after the base of the scallop retaining piece and immediately before the base of the rope retaining piece. Until now, it is characterized by having the same cross-sectional area and the same cross-sectional shape.

  According to a third aspect of the present invention, scallop shell retaining pieces extending obliquely upward and obliquely downward in the axial direction are provided at both ends of the shaft portion, the tip portion is bowl-shaped, and the shape including the scallop retaining pieces is symmetrical. A scallop made of synthetic resin, provided symmetrically with a locking portion of a scallop shell of a shape, and provided with a rope retaining piece that is spaced apart in the axial direction at the center of the shaft portion and protrudes obliquely upward so as to face inward in the axial direction In the abutment pin for aquaculture, a connecting portion having a smaller diameter than the shaft portion is provided from immediately after the base portion of the scallop retaining piece to immediately before the base portion of the rope retaining piece, and the connecting portion is provided at the base portion of the scallop retaining piece. The sectional area immediately after is the smallest, the sectional area immediately before the base of the rope retaining piece is the largest, and the sectional area continuously increases from immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece. It is characterized by that.

  In the device according to claim 1, the connecting portion continuously increases in cross-sectional area from immediately after the scallop retaining piece to immediately before the base portion of the rope retaining piece, and therefore, the connecting portion smoothly and continuously inclines and changes. As a result, there is no point at which the elongation of the connecting portion changes suddenly, breakage is less likely to occur, resistance to breakage is significantly increased, scallop growth, weight increase due to deposits, wave effects, landing It is possible to prevent the breakage of the connecting portion of the locking pin as much as possible due to resistance at the time, and to obtain a locking pin with high scallop locking and support strength.

  In the device according to claim 2, since the connecting portion has the same cross-sectional area from immediately after the base portion of the scallop retaining piece to immediately before the base portion of the rope retaining piece, the connecting portion has a sudden change in elongation. , The resistance to breakage is greatly increased, the scallop grows, the weight increases due to deposits, the effects of waves, resistance during landing, etc. Can be prevented as much as possible, and a scallop lock and a lock pin with high support strength can be obtained.

  In the invention according to claim 3, the connecting portion that connects the locking portion of the substantially <shaped> scallop to the rope retaining portion has a continuous cross-sectional area from immediately after the scallop retaining piece to immediately before the base of the rope retaining piece. Therefore, since the connecting portion smoothly and continuously changes in inclination, the connecting portion does not have a point where the elongation changes rapidly, and it becomes difficult to break, and the resistance to breaking is remarkably increased. The size of the scallop grows, the weight increases due to deposits, the effects of waves, the breakage of the connecting portion of the locking pin due to resistance during landing, etc. is prevented as much as possible, and the strength of scallop locking and support is high A locking pin can be obtained.

It is a side view of the locking pin for scallop cultivation according to the first embodiment of the present invention. It is a top view of the locking pin for scallop culture of FIG. 2 is a sectional view taken along line AA in FIG. 2, B is a sectional view taken along line BB in FIG. 2, C is a sectional view taken along line CC in FIG. 2, and D is a sectional view taken along line CC in FIG. FIG. 3 is a sectional view taken along the line DD of FIG. It is a side view of the locking pin for scallop culture according to the second embodiment of the present invention. It is a top view of the locking pin for scallop culture of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG. It is a side view of the locking pin for scallop culture according to a third embodiment of the present invention. 7 is a cross-sectional view of each part of FIG. 7, A is a cross-sectional view taken along line AA, B is a cross-sectional view taken along line BB, C is a cross-sectional view taken along line CC, and D is a cross-sectional view taken along line DD. FIG. It is explanatory drawing of the initial state which locked the scallop to the locking pin for scallop cultivation. It is explanatory drawing which shows the state which the scallop grew and became heavy, became heavy under the influence of the deposit | attachment, and the locking pin for scallop cultivation was extended. It is the figure explaining the state which the connection part which the locking pin for scallop shell culture extended was fractured, and scallop fell off.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.

1 is a side view of a locking pin for scallop farming according to a first embodiment of the present invention, FIG. 2 is a plan view of the locking pin for scallop culture, and FIG. 3 is a cross-sectional view of each part of FIG. 2 is a sectional view taken along the line AA in FIG. 2, B is a sectional view taken along the line BB in FIG. 2, C is a sectional view taken along the line CC in FIG. 2, and D is a sectional view taken along the line DD in FIG. It is line sectional drawing.
A first embodiment of the present invention will be described with reference to these drawings.

In FIG. 1, reference numeral 1 denotes a scallop-cultured locking pin, and both end portions of the shaft portion 2 are symmetrically provided with hook-shaped locking portions 3 and 3 with pointed tips, and the locking portion 3. , 3 is provided with scallop removal preventing pieces 4 and 4 which protrude in the axially outward direction in the axially inner portion near the tip portion.
Each scallop retaining piece 4, 4 is symmetrically inclined inward in the axial direction, and in the embodiment, is formed to be slightly curved outward in the radial direction.

The central portion 2a of the shaft portion 2 has the largest diameter, and the cross section has a circular cross section as indicated by D in FIG.
On the outer periphery of the central portion 2a, the rope retaining pieces 5 and 5 are provided so as to protrude in the same direction as the scallop retaining pieces 4 and 4, and the rope retaining pieces 5 and 5 are inclined so as to face each other to form a "C" shape. Eggplant.

In the above, the base portions 2c and 2c immediately before the rope retaining pieces 5 and 5 close to the central portion 2a of the shaft portion 2 from the base portions 2b and 2b of the scallop retaining pieces 4 and 4 of the shaft portion 2 are used as the connecting portion 6.
The connecting portion 6 has the base portions 2b and 2b of the scallop retaining pieces 4 and 4 having the smallest diameter, and the cross section thereof is as shown in FIG. 3A, which is an inverted saddle-shaped cross section with respect to the circular cross section of the central portion 2a of the shaft portion 2. is there.
On the other hand, the base portions 2c, 2c immediately before the rope retaining pieces 5, 5 of the connecting portion 6 close to the central portion 2a of the shaft portion 2 are equal to or slightly smaller than the central portion 2a, and have the largest cross section. The cross section immediately before that is as shown in FIG.

The cross-sectional area of the connecting portion 6 of the base portions 2c and 2c immediately before the rope retaining pieces 5 and 5 from the base portions 2b and 2b of the scallop retaining pieces 4 and 4 of the shaft portion 2 is changed from 2b and 2b to 2c and 2c. It continuously increases, 2b and 2b are minimum, and 2c and 2c are maximum.
In the connecting portion 6 described above, the change in the cross-sectional area from 2b, 2b to 2c, 2c changes from the portions 2b, 2b immediately after the scallop retaining pieces 4, 4 to immediately before the base portions 2c, 2c of the rope retaining pieces 5, 5. Thus, the cross-sectional area continuously increases, and accordingly, the cross-section of the connecting portion 6 changes smoothly and continuously.

  In the above, the locking pin 1 for scallop culture is inserted into the locking hole formed in the ear piece of the scallop from the tip thereof, and the scallop retaining piece 4 is bent and passes through the locking hole. Then, after passing through the locking hole, the state returns to the standing state as shown in FIG. 9 and becomes the same state as in FIG. 9, and the rope is prevented from being held between the rope retaining pieces 5 and 5 as in FIG.

By the way, pulling or bending acts on the portion 2b to 2c in FIG. 1, that is, the section b between a and c in FIG. It becomes.
When a tensile force, that is, an axial force F is applied, a value obtained by dividing the force F by the cross-sectional area S is a tensile stress σ (σ = F / S).
The stress σ at the point a of the minimum cross section is maximized. The elongation of the region including the point a is increased.
At the point d adjacent to the point a, the cross-sectional area is slightly increased as described above, so that the elongation is slightly decreased.

Thus, in the section b, the cross-sectional area continuously decreases gradually.
Conversely, there is no point where the amount of elongation changes suddenly. Although it can be considered that the elongation changes suddenly, the present invention makes it difficult to break when the elongation changes gradually.
That is, the resistance to breakage is significantly greater than before.

According to the present invention, the connecting portion 6 has a continuously increasing cross-sectional area, smoothly and continuously changes in inclination, and the connecting portion 6 does not have a point at which the elongation changes abruptly and is less likely to break. Thus, the resistance to breakage is greatly increased.
Therefore, the scallop lock and the high strength of the support are prevented by preventing as much as possible the breakage of the connecting portion of the lock pin due to the growth of the scallop, the weight increase due to the attached matter, the influence of the waves, the resistance at the time of landing, etc. A stop pin can be obtained.

4 to 6 are views showing a second embodiment of the present invention. FIG. 4 is a side view of a locking pin for scallop cultivation according to the second embodiment of the present invention. FIG. 5 is a scallop cultivation of FIG. FIG. 6 is a sectional view taken along line 6-6 of FIG.
The basic structure of the lock pin 11 for scallop farming is the same as that of the above-described embodiment, and both end portions of the shaft portion 12 are symmetrically provided with hook-shaped lock portions 13 and 13 having pointed tips. The axially inner portions near the distal end portions of the locking portions 13 and 13 are provided with scallop removal preventing pieces 14 and 14 that protrude in a radially outward direction, and the outer periphery of the central portion 12a of the shaft portion 12 is provided on the outer periphery of the central portion 12a. 14 and 14 are provided with rope stoppers 15 and 15 projecting in a “C” shape inclining so as to face each other.

  In the present embodiment, the cross section of the connecting portion 16 from the portion 12b immediately after the scallop retaining pieces 14 and 14 to the portion 12c immediately before the rope retaining pieces 15 and 15 is made smaller than the central portion 12a, and the cross section is the connecting portion 16. In the example, the cross section was made upside down as shown in FIG.

  In the above, the locking pin 11 for scallop cultivation is inserted into the locking hole formed in the ear piece of the scallop from its tip as in the first embodiment as described above, and the scallop locking piece 14 bends and passes through the locking hole, returns to the standing state as shown in the figure after passing through the locking hole, and becomes the same state as in FIG. 9, and the rope between the rope retaining pieces 15 and 15 as in FIG. 9. Is retained and retained.

By the way, the portion 12b to the portion 12c in FIG. 4, that is, the section b between a and c in FIG. 4, is pulled or bent by the scallops held and held in the same manner as in FIGS. It becomes.
The section b which is the connecting portion 16 has the same cross-sectional area over the entire length, and there is no point where the amount of elongation changes suddenly.
Although it is conceivable to break at a point where the amount of elongation changes suddenly, in the present invention, the amount of elongation is the same over the entire length, and breakage hardly occurs.
That is, the resistance to breakage is significantly greater than before.

According to the present invention, the connecting portion 16 has the same cross-sectional area over the entire length, the connecting portion 16 does not have a point where the elongation changes abruptly, breakage is less likely to occur, and resistance to breakage is remarkably increased. growing.
Therefore, the scallop lock and the high strength of the support are prevented by preventing as much as possible the breakage of the connecting portion of the lock pin due to the growth of the scallop, the weight increase due to the attached matter, the influence of the waves, the resistance at the time of landing, etc. A stop pin can be obtained.

FIGS. 7 and 8 are views showing a third embodiment of the present invention. FIG. 7 is a side view of a locking pin for scallop culture according to the third embodiment of the present invention. FIG. In the sectional view, A is a sectional view taken along line AA, B is a sectional view taken along line BB, C is a sectional view taken along line CC, and D is a sectional view taken along line DD.
The basic structure of the locking pin 21 for scallop cultivation is the same as that of the above-described embodiment, and the shaft portion 22 has symmetrical hook-shaped locking portions 23 and 23 at the end portions.
The structure different from the embodiment of FIGS. 1 and 4 is the shape of the locking portions 23, 23.

The locking portions 23, 23 have a symmetric <shape,> shape at both ends. The axially inward portion close to the distal end portion is provided with scallop retaining pieces 24, 24 and 24, 24 protruding upright symmetrically outward in the radial direction (vertical direction in the figure).
The central portion 22a of the shaft portion 22 has the largest cross-sectional area, and the rope retaining pieces 25, 25 face the outer periphery of both ends of this portion in the same direction as the upper and lower sides of the scallop retaining members 24, 24, respectively. Inclined to provide a "C" shape.
The scallop removal preventing pieces 24, 24 and 24, 24 protruding symmetrically in the vertical direction are inclined symmetrically inward in the axial direction, and in the embodiment, they are formed to be slightly curved outward in the radial direction.

In the above, the rope-shaped retaining piece close to the central portion 22a of the shaft portion 22 from the base portions 22b, 22b of the <shaped> shaped scallop retaining pieces 24, 24 and 24, 24 provided at portions near both ends of the shaft portion 22. The base portions 22c and 22c immediately before 25 and 25 are used as the connecting portion 26 as in the embodiment of FIG.
The connecting portion 26 has the base portions 22b and 22b of the scallop retaining pieces 24, 24 and 24, 24 having the smallest diameter, and the cross section thereof is as shown in FIG. 8A, and is a circular cross section of the central portion 22a of the shaft portion 22. The upper and lower parts of the anti-circular shape are horizontally long and cut in a vertically symmetrical manner, and have a substantially rectangular cross section in which both left and right sides are arc-shaped.

On the other hand, the base portions 22c and 22c immediately before the rope retaining pieces 25 and 25 of the connecting portion 26 close to the central portion 22a of the shaft portion 22 are equal to or slightly smaller than the central portion 22a and have the largest cross section. The cross section just before that is as shown in FIG. 8C, which is obtained by cutting the top and bottom of the circular cross section, having a flat top side and a flat bottom side, and a substantially circular shape in which both sides form a symmetrical arc. It is a cross section close to a cross section.
The cross section of each part of FIG. 7 is as A to D of FIG.

The cross-sections of the connecting portions 26, 26 described above are the connecting portions 26 of the base portions 22c, 22c immediately before the rope retaining pieces 25, 25 from the base portions 22b, 22b of the scallop retaining pieces 24, 24 and 24, 24 of the shaft portion 22. The cross-sectional area increases continuously from 22b and 22b to 22c and 22c, with 22b and 22b being the smallest and 22c and 22c being the largest.
In the connecting portion 26 described above, the change in the cross-sectional area from 22b, 22b to 22c, 22c changes from the portion 22b, 22b immediately after the scallop shell retaining pieces 24, 24 and 24, 24 to the base portion 22c of the rope retaining pieces 25, 25. , 22c, the cross-sectional area continuously increases, and therefore, the cross-section of the connecting portion 26 changes smoothly and continuously.

Accordingly, as in the first embodiment, the connecting portions 26 and 26 continuously increase in cross-sectional area, smoothly and continuously change in inclination, and the connecting portions 26 and 26 have a point that the elongation changes rapidly. It does not exist and breakage is less likely to occur, and the resistance to breakage is significantly increased.
Therefore, the scallop lock and the high strength of the support are prevented by preventing as much as possible the breakage of the connecting portion of the lock pin due to the growth of the scallop, the weight increase due to the attached matter, the influence of the waves, the resistance at the time of landing, etc. A stop pin can be obtained.

Heretofore, each of the first to third embodiments has been described in detail.
In the first embodiment and the third embodiment, in order to continuously change the cross-section tip of the connecting portions 6 and 26, the reverse saddle shape, or a substantially circular cross section from a substantially rectangular shape with symmetrical arcs on both sides. Instead, the cross sections of 2b, 22b to 2c, and 22c may be circular cross sections in which the diameters are continuously increased from the small diameter to the large diameter.
Further, in the second embodiment, the shape of the <shaped,> shape may be used in the same manner as in the third embodiment with respect to the substantially bowl-shaped shape of the tip portion.

  The locking pin for scallop cultivation according to the present invention can be used for scallop cultivation.

  1,11,21 ... Scallop farming locking pin, 2,12,22 ... Shaft, 3,13,23 ... Locking portion, 4,14,24 ... Scallop locking piece, 5,15,25 ... Rope locking 6, 26, a connecting portion whose cross-sectional area continuously increases, 16, a connecting portion having the same cross-sectional shape.

Claims (3)

Equipped with a scallop retaining piece that extends diagonally upward inward in the axial direction at both ends of the shaft part, with a scallop locking part that has a bowl-shaped tip and a substantially bowl-shaped shape including the scallop retaining piece. In the locking pin for scallop shell culture made of synthetic resin, provided with a rope retaining piece that is spaced apart in the axial direction in the central part of the shaft part and projects obliquely upward so as to face inward in the axial direction,
From immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece, a connecting portion having a smaller diameter than the shaft portion is provided,
The connecting portion has the smallest cross-sectional area immediately after the base of the scallop retaining piece, the largest cross-sectional area immediately before the base of the rope retaining piece, from immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece. , The cross-sectional area continuously increased,
A locking pin for scallop culture. Equipped with a scallop retaining piece that extends diagonally upward inward in the axial direction at both ends of the shaft part, with a scallop locking part that has a bowl-shaped tip and a substantially bowl-shaped shape including the scallop retaining piece. In the locking pin for scallop shell culture made of synthetic resin, provided with a rope retaining piece that is spaced apart in the axial direction in the central part of the shaft part and projects obliquely upward so as to face inward in the axial direction,
From immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece, a connecting portion having a smaller diameter than the shaft portion is provided,
The connection pin has the same cross-sectional area and the same cross-sectional shape from immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece. Scallops with scallop shells that extend diagonally upward and diagonally downward in the axial direction at both ends of the shaft part, and that have a bowl-like tip and a symmetric shape that includes the scallop protection piece. The scallops for scallop cultivation made of synthetic resin are provided symmetrically, and are provided with a rope retaining piece that is spaced apart in the axial direction in the central part of the shaft part and projects obliquely upward so as to face inward in the axial direction At the pin
From immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece, a connecting portion having a smaller diameter than the shaft portion is provided,
The connecting portion has the smallest cross-sectional area immediately after the base of the scallop retaining piece, the largest cross-sectional area immediately before the base of the rope retaining piece, from immediately after the base of the scallop retaining piece to immediately before the base of the rope retaining piece. , The cross-sectional area continuously increased,
A locking pin for scallop culture.

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