Boxy boat guide device and boxy boat for laver

Abstract

To provide a boxy boat for laver which can smoothly sail between columns erected in line on water and is capable of improving working efficiency and safety.SOLUTION: A boxy boat guide device comprises a guide body 4 installed on both left and right sides of a boxy boat body 2 of a boxy boat 1 for laver which can sail between multiple columns 101 erected in line in water at a prescribed interval, and capable of guiding the sailing of the boxy boat body 2 by engaging with the columns 101. Preferably, the guide body 4 is long in the front-to-back direction of the boxy boat body 2 and is preferably provided so as to be telescopically extendable in the front-to-back direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a guide device for a ark and a seaweed ark. [Background technology]

[0002] Traditionally, Nori seaweed is cultivated in relatively shallow waters using the pole-type cultivation method, in which multiple poles are set into the seabed and the nets are supported by these poles to grow the seaweed.

[0003] In this type of Nori cultivation, activation and fertilization processes are carried out by boat. The boats used for activation and fertilization processes are often inexpensive, small work boats known as arks (nori arks). The arks have a treatment layer on board where activation treatment liquid and the like are stored. During activation and fertilization processes, workers on the ark pull up a nori net attached to poles from the sea from one side of the ark, pass the net through the treatment layer inside the ark, and then return it to the sea from the other side of the ark. When workers pull up the nori net from the ark, the ark moves along the net by the same distance.

[0004] However, since the box is shaped like a square box with a flat bottom, it is less able to move in a straight line than a normal ship. In response to this, a technology has been proposed in which fins are provided on the box to improve the maneuverability and straight line movement of the box (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-274936 Summary of the Invention [Problem to be solved by the invention]

[0006] As described above, conventional arks have poor straight-line navigation, and it is particularly difficult to steer the ark so that it moves straight between the posts along the seaweed net when there are strong winds or rough waves. Even arks equipped with fins, such as those described in Patent Document 1, are susceptible to being swept left or right by strong winds or waves. Therefore, during activation or fertilization treatments, the ark may come into contact with or collide with the posts or become trapped between the posts due to the influence of wind or waves, causing the seaweed net to shift from the ark. As a result, the seaweed net and ark are damaged, and the labor required to return the ark to its original position relative to the seaweed net reduces work efficiency, increases work effort and time, and reduces the safety of workers on board.

[0007] The present invention was made in consideration of the above-mentioned conventional problems, and one of its purposes is to provide a guide device for a ark and a seaweed ark that allows the ark to move smoothly between supports that are lined up on the water, thereby improving work efficiency and safety. [Means for solving the problem]

[0008] In order to solve the above problem, the ark guide device of the present invention is equipped with a guide body that is attached to both the left and right sides of an ark that can move between a plurality of pillars that are erected in the water at a predetermined interval, and that can engage with the pillars to guide the movement of the ark.

[0009] The guide body may be elongated along the fore-and-aft direction of the ark and extendable along the fore-and-aft direction.

[0010] The guide body may be provided with a locking device for maintaining a predetermined length.

[0011] In addition, the guide body may include a rod body that is long in the fore-and-aft direction of the ark so as to protrude further than the front or rear of the ark, and when the rod body is extended, it may be configured to have a length longer than the distance between adjacent pillars in the fore-and-aft direction of the ark.

[0012] The device may also be provided with a deployment and storage mechanism that can convert the guide body between an deployed state in which it is positioned at a predetermined distance to the left and right outward from the box, and a stored state in which it is positioned close to the box.

[0013] The deployment and storage mechanism may also include a rotation device that allows the guide body to rotate about an axis along the fore-and-aft direction of the ark, thereby converting between the deployed state and the stored state.

[0014] The deployment and storage mechanism may also include an advancing and retreating device that moves the guide body forward and backward in the width direction of the box to convert between the deployed state and the stowed state.

[0015] The guide body may be provided with an inwardly curved rounded portion at the front end or rear end.

[0016] Furthermore, the seaweed ark of the present invention comprises a ark body and any of the ark guide devices described above. [Effects of the Invention]

[0017] The guide device for the ark and the Nori ark of the present invention are configured with guide bodies attached to both the left and right sides of the ark, which can move between a plurality of support posts set up in the water at a predetermined interval, and which engage with the support posts to guide the movement of the ark. This effectively prevents the ark from hitting the support posts or getting caught between the support posts, and allows the hull to move smoothly in a generally straight line between the support posts. Therefore, for example, at a support-type Nori cultivation site, it is possible to provide an ark that can improve work efficiency when performing activation treatments and fertilization treatments on a boat, prevent wear and tear on the ark and Nori nets, and ensure work safety. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a plan view of a seaweed ark according to a first embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a perspective view of the seaweed ark of FIG. [Figure 3] FIG. 3 is a partially enlarged view of FIG. 2, illustrating the periphery of the deployment and storage mechanism. [Figure 4] 2 is an explanatory diagram of the operation of the guide device for the seaweed ark of FIG. 1. FIG. [Figure 5] 2A and 2B are explanatory diagrams illustrating the operation of the guide device for the laver ark of FIG. 1, where FIG. 2A is an explanatory diagram illustrating the operation of the advancing and retreating device, and FIG. 2B is an explanatory diagram illustrating the operation of the rotating device. [Figure 6] FIG. 10 is a plan view of a seaweed ark according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be described in more detail below using preferred embodiments, but the following embodiments are merely examples of realizing the present invention and the present invention is not limited thereto.

[0020] 1 to 5 show a first embodiment of a ark guide device and a seaweed ark according to the present invention. As shown in Fig. 1, Fig. 2, and Fig. 3, the seaweed ark 1 according to this embodiment comprises an ark body 2 and a guide device 3.

[0021] In this embodiment, the seaweed hut 1 is used for the activation and fertilization of seaweed nets used in seaweed cultivation. As shown in FIG. 1 , the seaweed net 100 is attached to a plurality of support poles 101 that are vertically arranged at a predetermined interval in the water. The support poles 101 are arranged at a predetermined interval L along the longitudinal direction of the seaweed net 100 to support the seaweed net, and the support poles 101 are arranged at an interval W across the width of the seaweed net 100, so that the plurality of seaweed nets 100 are installed side by side in the width direction. The seaweed hut 1 moves along the longitudinal direction of the seaweed net 100 while performing the activation process and other operations. In this embodiment, the moving direction of the seaweed hut 1 is referred to as the forward direction. Therefore, the direction along the moving direction of the seaweed hut 1 is referred to as the fore-aft direction, and the lateral direction along the width of the seaweed hut 1, which is perpendicular to the moving direction (fore-aft direction), is referred to as the left-right direction.

[0022] The ark body 2 is formed, for example, in a substantially rectangular shape, and a conventionally known ark body or the like can be used. In this embodiment, the ark body 2 is equipped with an activation treatment section 21 on board for performing an activation treatment on cultivated seaweed. A front guide member 22 is provided at the front of the ark body 2 for scooping up the seaweed net 100 in the sea as the ark body 2 moves forward. The front guide member 11 is formed, for example, in a substantially trapezoidal shape in a plan view, and protrudes forward from the front end of the ark body 2, inclining downward at a certain angle. A rear guide member 23 is provided at the rear side of the ark body 2 for guiding the seaweed net that has passed through the activation treatment section 21 into the sea. The ark body 2 may be equipped with an outboard motor or the like.

[0023] The guide device 3 is a guide means that can engage with the support posts 101 of the seaweed net 100 to guide the progress of the ark body 2 so that the seaweed ark 1 moves approximately straight between the support posts 101. In this embodiment, the guide device 3 has guide bodies 4 installed on both the left and right sides of the ark body 2, and a deployment and storage mechanism 5 that attaches each guide body 4 to the side of the ark body 2 so that it can be deployed and stored.

[0024] In this embodiment, the guide bodies 4 are provided at positions protruding outward on the left and right sides of the ark body 2 so as to be able to contact the support columns 101, and while protecting the ark body 2, they can guide the ark body 2 in a substantially straight line in cooperation with the support columns 101. As shown in Figures 1, 2 and 4, the guide bodies 4 are provided long along the fore-and-aft direction of the ark body 2, and have telescopic rod bodies 41 that are provided so as to be able to extend and retract.

[0025] Specifically, the telescopic rod body 41 is assembled so that it can be extended and contracted in the front-to-rear direction, with a front rod member 41b and a rear rod member 41c that are elongated in the front-to-rear direction inserted in the front and rear of a tubular base 41a that is elongated in the front-to-rear direction and has open ends, and slidably inserted along the longitudinal direction.

[0026] The cylindrical base 41 a is, for example, slightly shorter or approximately the same length as the longitudinal length of the box body 2 , and is attached to the side of the box body 2 via the deployment and storage mechanism 5 .

[0027] The front rod member 41b is inserted into the cylindrical base 41a from its rear end side and is assembled to be extendable relative to the cylindrical base 41a so that its insertion length, i.e., its protruding length from the cylindrical base 41a, can be changed. For example, when the front rod member 41b is pulled out from the cylindrical base 41a and extended, its length is set so that its front end protrudes forward beyond the front end of the ark body 2. On the other hand, when the front rod member 41b is stored in the cylindrical base 41a and contracted, its front end is set so that its front end moves to approximately the same position as the front end of the ark body 2. The front end side of the front rod member 41b is provided with a radiused portion 42 that is bent inward in a substantially J-shape.

[0028] The rear rod member 41c is inserted into the cylindrical base 41a from its front end and is assembled to be extendable relative to the cylindrical base 41a so that its insertion length, i.e., its protruding length from the cylindrical base 41a, can be changed. For example, when the rear rod member 41c is pulled out of the cylindrical base 41a and extended, its rear end protrudes rearward beyond the rear end of the ark body 2. Furthermore, when the rear rod member 41c is stored in the cylindrical base 41a and contracted, its rear end moves to approximately the same position as the rear end of the ark body 2. Similar to the front end of the front rod member 41b, the rear end of the rear rod member 41c has a radiused portion 42 that is bent inward in a substantially J-shape toward the ark body 2.

[0029] That is, the guide body 4 is extendable to any length along the longitudinal direction. In the extended state, the guide body 4 protrudes forward from the front end of the ark-ship body 2 and protrudes rearward from the rear end of the ark-ship body 2, and is configured to be longer than the longitudinal length of the ark-ship body 2. Furthermore, in the contracted state, the guide body 4 can be stored to a length approximately equal to the longitudinal length of the ark-ship body 2. Furthermore, in this embodiment, the longitudinal length X of the guide body 4 is preferably set to be longer than the distance L between adjacent posts 101 in the longitudinal direction (guide body length X > post distance L). This allows the long guide body 4 to simultaneously engage with the two front and rear posts 101, effectively preventing the ark-ship body 2 from getting caught or pinched between the posts 101, for example, when the ark-ship body 2 moves left or right due to the influence of wind or waves. As a result, the ark-ship body 2 can be maintained in a substantially straight line as it moves between the posts, and the ark-ship body 2 is less likely to slip relative to the seaweed net 100, improving the workability of activation processing and other processes. The distance L between the struts varies depending on the site, but can be set to an appropriate length depending on the site by extending or retracting the guide body 4. Furthermore, because the guide body 4 has rounded sections 42 at the front and rear ends, when the front end of the ark body 2 moves left or right due to the influence of wind or waves, the rounded sections 42 engage with the struts 101, and the ark body 2 is guided inward along the rounded sections, and is guided back to its original direction of travel, allowing it to move in a generally straight line.

[0030] The telescopic rod body 41 is provided with a locking device 43 that locks the front rod member 41b and the rear rod member 41c, which slide relative to the cylindrical base 41a, in a positional relationship. That is, the locking device 43 is a locking means for holding the telescopic rod body 41 at a predetermined length. In this embodiment, the locking device 43 includes, for example, adjustment holes 431 drilled at predetermined intervals in the front-to-rear direction in the cylindrical base 41a, positioning holes (not shown) drilled in the front rod member 41b and the rear rod member 41c, and a pin that is removably inserted while aligning the adjustment hole 431 in the cylindrical base 41a with the positioning hole in the front rod member 41b or the rear rod member 41c. The front rod member 41b and the rear rod member 41c are slid relative to the cylindrical base 41a to adjust their lengths, and the holes are aligned and the pin is inserted to lock them at that length.

[0031] 1, 2, and 3, the deployment and storage mechanism 5 is a deployment and storage means that can convert the guide body 4 between a deployed state in which it is positioned at a predetermined distance outward from the ark body 2 in the left-right direction, and a stored state in which it is close to the ark body 2. In this embodiment, as also shown in FIGS. 4 and 5, the deployment and storage mechanism 5 is configured to rotate the guide body 4 about an axis along the fore-and-aft direction of the ark, thereby converting between the deployed state and the stored state, and to move the guide body 4 forward and backward in the left-and-right direction of the ark body 2, thereby converting between the deployed state and the stored state. That is, the deployment and storage mechanism 5 has a rotation device 6 that can rotate the guide body 4 about an axis along the fore-and-aft direction, and an advance / retract device 7 that can move the guide body 4 forward and backward in the left-and-right direction.

[0032] The deployment / storage mechanism 5 has, for example, a pair of bracket parts 51 fixed at positions spaced apart in the front-to-rear direction on the sides of the box body 2, a rotating shaft 52 arranged in the front-to-rear direction on each bracket part 51, and an arm part 53 attached to the rotating shaft 52 so as to be rotatable about its axis. These bracket parts 51, rotating shafts 52, and arm part 53 constitute the rotating device 6 of the guide body 4.

[0033] The bracket portion 51 has, for example, a pivotal support portion protruding outward from the hull fixing portion, and a rotating shaft 52 is fixed to the pivotal support portion. One end of the arm portion 53 is pivotally connected to the rotating shaft 52, and the cylindrical base portion 41a of the guide body 4 is fixed to the other end, which is the free end. As shown in FIG. 5(b), the arm portion 53 is movable within a range of approximately 90 degrees from a state in which the arm portion 53 faces approximately horizontally so that its longitudinal direction projects outward to the left and right, to a state in which the arm portion 53 faces approximately vertically so that it projects upward. Thus, the arm portion 53 is held in a state in which the guide body 4 faces approximately horizontally to be in the deployed state, and can be converted to the stored state by rotating the arm portion 53 so that it faces upward.

[0034] 5(a), the arm portion 53 has, for example, a multiple-cylinder structure (double-cylinder structure) made up of a combination of multiple cylindrical members with different diameters, and is configured to be extendable along the longitudinal direction. That is, in this embodiment, the arm portion 53 is configured to be extendable, thereby constituting the advancing / retreating device 7. As a result, when the arm portion 53 is extended, the guide body 4 is positioned away from the ark body 2 in an extended state. Conversely, when the arm portion 53 is retracted, the guide body 4 can be moved close to the ark body 2 and stored.

[0035] The deployment and storage mechanism 5 is also provided with a fastener 54 that holds the guide body 4 so as to maintain the stored state of the guide body 4. The fastener 54 is, for example, a hook-shaped member having one end connected to the box body 2 and the other end formed in a hook shape, and can detachably engage the cylindrical base 41a of the guide body 4 in the stored state.

[0036] When performing tasks such as activation and fertilization using the laver box 1 of this embodiment, the laver box 1 is advanced along the longitudinal direction of the laver net 100 stretched between the support posts 101. As shown in FIG. 1 , the length X of the guide body is set longer than the distance L between the support posts. Therefore, even if the laver box 1 tends to shift left or right due to wind or waves as it moves forward, the guide bodies 4 attached to the left and right sides of the laver box 1 and their curved portions 42 contact and engage with the support posts 101, preventing the laver box 1 from shifting and allowing the laver box 1 to smoothly move straight along the laver net. This prevents the laver box body 2 of the laver box from contacting the support posts 101 or from getting stuck or pinched between the support posts 101, improving the efficiency of tasks such as activation.

[0037] Furthermore, when the activation process and other operations for one row of nori nets 100 have been completed and the next row of nori nets 100 needs to be processed, the length of the guide body 4 is reduced and the guide body 4 is stored via the deployment and storage mechanism 5. This prevents the guide body 4 from hitting the support poles 101 and getting in the way when the nori box 1 is turned, etc., and allows for a smooth transition to processing work for the next row of nori nets. Thereafter, when processing the next nori net, the guide body is deployed again and its length is extended, allowing for smooth work while maintaining straightness in the same way.

[0038] Next, a second embodiment of the nori ark of the present invention will be described with reference to Figure 6. The same components as those in the above embodiment are designated by the same reference numerals, and detailed descriptions will be omitted. The nori ark 1-2 according to this embodiment comprises a ark body 2 and a guide device 3. In this embodiment, the configuration of the guide device 3 is different from that of the above embodiment.

[0039] In this embodiment, the guide body 4 of the guide device 3 is fixedly attached to the side of the box body 2. The guide body 4 has an extendable rod body 41, which is configured to be extendable by assembling a cylindrical base portion 41d and a rear rod member 41e slidably inserted into the cylindrical base portion 41d.

[0040] The cylindrical base 41d is fixed, for example, via two fixed arms 41f that protrude outward from the sides of the ark body 2. Therefore, the guide body 4 is disposed at a predetermined distance outward from the ark body 2 on the left and right sides. A rounded portion 42 is formed at the front end of the cylindrical base 41d, facing inward toward the ark body 2. The tip of the rounded portion 42 is fixed to the ark body 2, and the front end of the guide body 4 is located at approximately the same position as the front end of the ark body 2.

[0041] The rear rod member 41e is inserted into the cylindrical base 41d from its front end and is assembled telescopically so that its insertion length, i.e., its protruding length from the cylindrical base 41a, can be changed. Therefore, by sliding the rear rod member 41e relative to the cylindrical base 41d, the length of the telescopic rod body 41 in the front-to-rear direction can be adjusted. In this embodiment, the telescopic rod body 41 is configured to protrude rearward from the rear end of the hull body 2 when extended. The length X of the telescopic rod body 41 in the front-to-rear direction is set longer than the distance L between the support posts. Therefore, as in the above embodiment, the guide body allows the telescopic rod body 41 to move stably and substantially straight between the support posts, thereby enabling smooth operation on the ship, such as activation treatment and fertilization treatment. Meanwhile, the telescopic rod body 41 is configured so that its rear end is substantially flush with the rear end of the hull body 2 when retracted. This allows the telescopic rod body 41 to be retracted when the hull body 2 needs to be turned, so that it does not hit the support posts or get in the way.

[0042] The seaweed ark of the present invention described above is not limited to the configuration of the above-mentioned embodiment, and any modifications may be made within the scope of the essence of the present invention as set forth in the claims. [Explanation of symbols]

[0043] 1. Seaweed Ark 2. The Ark 3 Guide device 4 Guide body 41 Telescopic rod body 42 R Section 43 Locking device 5 Deployment and storage mechanism 6 Rotating device 7 Advancement / retraction device 101 Post

Claims

1. A guide device for an ark, characterized in that it is attached to both the left and right sides of an ark that can move between a plurality of supports erected in a row at a predetermined interval in the water, and is equipped with guide bodies that can engage with the supports to guide the movement of the ark.

2. 2. A guide device for a hull according to claim 1, wherein the guide body is elongated along the longitudinal direction of the hull and is extendable and contractible along the longitudinal direction.

3. 3. A guide device for a ark according to claim 2, wherein said guide body is provided with a locking device for maintaining a predetermined length.

4. A guide device for a ark as described in claim 2, characterized in that the guide body includes an extendable rod body that is long in the fore-and-aft direction of the ark so as to protrude further than the front or rear of the ark, and when the extendable rod body is extended, it is set to a length longer than the distance between adjacent supports in the fore-and-aft direction of the ark.

5. A guide device for a ark as described in claim 2, characterized in that it is provided with a deployment and storage mechanism that can convert the guide body into an deployed state in which it is positioned at a predetermined distance to the left and right outward from the ark, and a stored state in which it is positioned close to the ark.

6. 6. A guide device for a hull as described in claim 5, wherein the deployment and storage mechanism includes a rotation device that allows the guide body to rotate about an axis along the fore-and-aft direction of the hull, thereby converting between the deployed state and the stored state.

7. 6. A guide device for a hull as claimed in claim 5, wherein the deployment and storage mechanism has an advancing and retreating device that moves the guide body back and forth in the width direction of the hull to convert between the deployed state and the stored state.

8. 2. The guide device for a ark vessel according to claim 1, wherein the guide body has a curved inward portion at the front end or the rear end.

9. The ark itself, A seaweed ark comprising the ark guide device according to any one of claims 1 to 8.

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