Wave elimination device with label plate
Patent Information
- Application Number
- JP2023092846
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-06
- Publication Date
- 2024-12-18
- Estimated Expiration
- 2043-06-06
AI Technical Summary
Conventional sign boards on wave breakers at boat racecourses are difficult to replace and cause significant damage to athletes due to their sturdy steel construction and lack of adequate cushioning.
A wave dissipating device with a sign board made of resin, specifically FRP material, featuring a simplified structure with a single plate design, air vents, and a quick attachment mechanism using presser plates for easy replacement and reduced impact upon contact.
The resin-made sign board is lightweight, easy to replace, resistant to corrosion and dirt, and provides effective cushioning, reducing impact and maintenance time while maintaining visibility during races.
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Abstract
Description
[Technical field]
[0001] The present invention relates to a wave dissipating device with a signboard, and more particularly to a technology for making a signboard used at a boat racing venue out of resin and fixing it to a wave dissipating device. [Background technology]
[0002] Conventionally, the signboards installed on the wave dissipating devices at motorboat racing venues were fixed to a steel base with multiple bolts, making them sturdy overall. However, because multiple bolts had to be removed, it took time to replace the signboard when it was damaged. In addition, although the surface of the base was covered with PE foam in anticipation of contact with the racers, the inside was made of steel, so in many cases it did not provide sufficient cushioning. Therefore, there was a demand for a wave dissipating device with a sign plate that would be easy to replace and would cause minimal damage to athletes if it came into contact with them.
[0003] Various techniques have been proposed in this technical field. For example, an easily attachable and detachable signboard for a boat racing venue has been proposed and is a publicly known technique (see Patent Document 1). More specifically, the document describes a hollow start signboard for a boat racing venue, which is made of a destructible foam and has pipes fixed in parallel at a predetermined interval from a longitudinal pipe for connecting a wave dissipating device to the course axis, bent from the connecting part, protruding into the course parallel to the water surface at a certain depth from the water surface, and floats fixed vertically onto the pipes, so that it can be installed on these floats. However, this describes a large sign held by multiple floats, and is silent about a sign plate fixed to a wave dissipating device, so the above-mentioned problem is not solved. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Publication No. 53-137733 Summary of the Invention [Problem to be solved by the invention]
[0005] In view of the above problems, the present invention has an object to provide a wave dissipating device with a sign plate that allows easy replacement of the sign plate and causes minimal damage to athletes when it comes into contact with them. [Means for solving the problem]
[0006] In order to solve the above problems, the present invention employs a means comprising a wave-dissipating main body, a guardrail section, a connecting section, a signboard, and a signboard fixing section, the signboard being made of a resin material.
[0007] The present invention also employs a means in which the signboard is made of an FRP material.
[0008] Furthermore, the present invention employs a means in which the sign board has a display section that displays the sign content, a support section that supports the display section, and an upright section that rises from the support section and is attached to the wave-dissipating main body, and the upright section is inserted between the upper and lower pressure plates of the sign board fixing section and fixed by being clamped and tightened by the pressure plates.
[0009] Furthermore, the present invention employs a means in which the support portion has holes for ventilation.
[0010] Furthermore, the present invention employs a means in which the signboard has a reinforcing portion that reinforces the standing portion and the supporting portion. Effect of the Invention
[0011] According to the wave-dissipating device with sign plate of the present invention, the sign plate structure on the wave-dissipating device can be simplified, making it lightweight and space-saving to store on land as a replacement part, facilitating replacement on the water.In addition, since the sign is made of a single resin without any structures such as reinforcing frame metal fittings, it is possible to reduce impact when contacted and improve resistance to corrosion and dirt. [Brief description of the drawings]
[0012] [Figure 1] 1 is an overall perspective view showing an embodiment of a signboard-equipped wave dissipating device according to the present invention. FIG. [Diagram 2] 1 is an overall side view showing an embodiment of a signboard-equipped wave-dissipating device according to the present invention. FIG. [Diagram 3] FIG. 2 is a perspective view showing the installation process of the signboard-equipped wave dissipating device according to the present invention. [Figure 4] FIG. 2 is a perspective view showing the shape of the reinforcement of the sign plate in the sign plate-equipped wave dissipating device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] The greatest feature of the wave dissipating device with signboard of the present invention is that the signboard structure on the wave dissipating device is simplified, making it easy to replace and also enabling the mitigation of impact when it comes into contact with athletes. Hereinafter, an embodiment of a signboard-equipped wave dissipating device according to the present invention will be described with reference to the drawings. In addition, the overall configuration and the configuration of each part of the signboard-equipped wave dissipating device shown below are not limited to the embodiments described below, but can be modified as appropriate within the scope of the technical idea of the present invention, i.e., within the scope of shapes, dimensions, structures, etc. that can achieve the same functional effects.
[0014] The present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view showing an embodiment of a signboard-equipped wave-dissipating device according to the present invention. FIG. 2 is an overall side view showing an embodiment of a wave-dissipating device with a signboard according to the present invention, where (a) is a side view of a signboard with numbers only attached to the wave-dissipating device, and (b) is a side view of a signboard with numbers and a specific pattern attached to the wave-dissipating device. Figure 3 is an oblique view showing the installation process of a signboard-equipped wave dissipating device according to the present invention, where (a) shows the state before the signboard is attached to the signboard fixing part, (b) shows the state after the signboard is attached to the signboard fixing part, and (c) is an AA cross-sectional view of the signboard and the signboard fixing part when the signboard is attached to the signboard fixing part. Figure 4 is an oblique view showing the shape of the reinforcement of a signboard in a signboard-equipped wave-dissipating device according to the present invention, where (a) is an oblique view of the back side of a signboard with one reinforcing plate attached, (b) is an oblique view of the back side of a signboard with one reinforcing plate attached and the corresponding signboard fixing part, and (c) is an oblique view of the back side of a signboard with two reinforcing plates attached.
[0015] The wave dissipating device with signboard 1 is a floating wave dissipating device with a signboard attached. The signboard is used to show distance and other information to the racers during the race, and is about 75cm square. To make it easier for the racers to see, it is installed on top of the wave breaker, higher than the guardrail. Also, since it is possible that a runner who goes off the course during the race may come into contact with the signboard, it needs to be made of a material with good cushioning properties.
[0016] Conventional signboards were designed by placing a signboard base about 50cm high on top of the wave-dissipating body, and then fixing the signboard on top of that. The signboard is approximately 75cm x 75cm in size, and is made of foamed urethane as the core material, with the edges covered with paint. The sign board base is to be placed at a position about 50 cm above the top of the wave dissipating body. Therefore, it needs to be rigid, and in many cases it is made of steel, large-scale, and heavy. However, when steel is used for the signboard base, it is installed above water, which causes the steel to corrode and become dirty, requiring frequent maintenance. In addition, because the sign board, sign board base, and wave dissipating device itself are all secured in place with bolts, it took a lot of time to replace them when they were damaged. In addition, if a racer comes into contact with or jumps over the guardrail of the wave dissipating device during the race, there is a possibility that he or she will crash into the signboard, so in order to reduce the impact on the racer, the side of the signboard base was covered with foamed PE foam and other cushioning materials. This resulted in a complex structure, and maintenance was also more complicated.
[0017] The wave-dissipating device with signboard 1 is mainly composed of a wave-dissipating main body 10, a guardrail section 20, a connecting section 30, a signboard fixing section 40, and a signboard section 50 that shows athletes distances, etc., and is made up of multiple connected blocks, including blocks on which no signboard is located.
[0018] The wave-dissipating body 10 is a body that reduces waves on the water surface. The shape is a long, thin, wedge-shaped one-piece box when viewed in cross section in the width direction, as shown in Figures 1 and 2. The tip of the wedge (left side of Figure 2) is the front part, and the base of the wedge (right side of Figure 2) is the rear part. The wave-dissipating body 10 is made of FRP material. It is placed with the opening of the box facing the bottom, and is structured to absorb the energy of waves that enter the box. A buoyant body is placed inside the wave-dissipating body 10 to float the wave-dissipating body 10.
[0019] A wave-dissipating body fixing bracket 11 is arranged on the upper part of the wave-dissipating body 10, and a connecting part 30 and a signboard fixing part 40 are fixed thereto. A plurality of wave-dissipating bodies 10 are connected in the longitudinal direction by connecting parts 30 disposed on the upper parts of the wave-dissipating bodies 10. By connecting a plurality of wave-dissipating bodies 10, waves can be dissipated over a wider area. A guardrail section 20 is arranged above the front part of the wave-dissipating main body 10 via a wave-dissipating main body fixing bracket 11 and a connecting section 30. A sign board fixing part 40 and a sign board part 50 are arranged at the rear of the wave-dissipating main body 10 via a wave-dissipating main body fixing bracket 11. In other words, the signboard-equipped wave-dissipating device 1 is formed by connecting wave-dissipating bodies 10 having buoyant bodies via connecting parts 30.
[0020] The guardrail portion 20 is a guard portion for preventing contact or collision with the boat operator. The guardrail portion 20 is composed of a guardrail plate portion 21 and a guardrail holding portion 22. The guardrail plate portion 21 is a portion that receives impact and has a strength sufficient to prevent damage, bending, etc., due to the impact. The guardrail holding portion 22 is for fixing the guardrail plate portion 21 to the wave-dissipating main body 10, and is fixed via the connecting portion 30 and the wave-dissipating main body fixing metal fitting 11. It has an L-shaped structure, and when the guardrail plate portion 21 receives an impact, the L-shape bends, thereby exerting a damping effect. The guardrail plate portion 21 is fixed to the guardrail holding portion 22 by a screw portion 70.
[0021] The connecting portion 30 is for connecting a plurality of wave-dissipating bodies 10. Two of the connecting portions 30 are arranged in the width direction of the wave-dissipating bodies 10 so as to straddle the adjacent wave-dissipating bodies 10. The connecting portion 30 is fixed to the wave-dissipating body 10 by a screw portion 70 via a wave-dissipating body fixing bracket 11 . The connecting portion 30 fixes the guardrail holding portion 22 with a screw portion 70.
[0022] The sign board section 50 is a display board for showing the distance and the like to runners during the race. The sign plate portion 50 is made of a resin material. More specifically, it is made of an FRP material to contribute to weight reduction and aesthetics, and is plate-shaped as a whole. Making the whole into a single plate-shaped portion simplifies the structure. The FRP plate shape makes it resistant to corrosion and dirt, and easy to clean, making maintenance more efficient. In addition, since the signboard section 50 is a single-piece FRP structure, there is no need for a signboard support base made of steel or the like, which acts as a cushion when a player collides with it and reduces damage to the player due to breakage, eliminating the need for cushioning material.
[0023] The sign board portion 50 is made as a single unit, and functionally comprises a display portion 51, a support portion 52, and an upright portion 53. More specifically, it has a display unit 51 that displays the sign content, a support unit 52 that supports the display unit 51, and a standing unit 53 that stands up from the support unit 52 and is attached to the sign board fixing unit 40. The standing unit 53 is inserted between the upper and lower pressure plates of the sign board fixing unit 40, and is fixed by being clamped and tightened by the pressure plates.
[0024] The display unit 51 is a display section for showing distances and the like to runners during a race. The size varies depending on the content to be displayed. Figure 2(a) shows a case where only numbers are displayed. For example, the size is about 75cm x 75cm. Figure 2(b) shows a case where numbers and a specific pattern are displayed. For example, the size is about 150cm wide and 75cm high. The display unit 51 is placed at a higher position than the guard rail unit 20 so that it can be seen by the runners during the race. Therefore, it needs to be made of a material and structure that is not easily distorted or damaged by the wind. For that reason, FRP is suitable. The support section 52 is a section that supports the display section 51. In order to reduce the effects of wind, a vent hole 60 is provided. There is one vent hole 60 near the center of the support section 52, and the vent hole 60 is at least one third the area of the support section 52. Since the area near the center of the support section 52 is hollow due to the vent hole 60, the display section 51 is supported by pillars on the left and right sides of the support section 52.
[0025] When numbers and a specific pattern are displayed, the display is long horizontally, so as shown in Fig. 2(b), the air vent 60 is made to have a roughly triangular shape with a large upper part. By making it in this shape, it is possible to stably support the display unit 51 while reducing the influence of wind. Since support section 52 and display section 51 are made of FRP and are integrated, in order to optimize strength, the upper part of support section 52 and the lower part of display section 51 have the same dimensions. Similarly, the lower part of support section 52 and the upper part of standing section 53 also have the same dimensions (FIG. 2).
[0026] The standing portion 53 is a portion that fixes the sign board portion 50 to the sign board fixing portion 40 . The standing portion 53 is a plate portion that stands up from the lower end edge of the support portion 52. It is clamped and fixed between the upper and lower pressing plates of the sign board fixing portion 40. Since the standing portion 53 itself is not fixed with screws or the like, the sign board portion 50 can be easily attached and detached by loosening the clamping force of the sign board fixing portion 40.
[0027] The sign board fixing part 40 is for fixing the sign board part 50 to the wave-dissipating main body 10. More specifically, it is for fixing the sign board part 50 to the connecting part 30 fixed to the wave-dissipating main body fixing bracket 11 of the wave-dissipating main body 10. The sign board portion 50 is fixed by being sandwiched between the sign board fixing portions 40. The sign plate fixing portion 40 is made up of a lower pressing plate portion 41, an upper pressing plate portion 42, and a screw pressing portion 43 (FIGS. 2 and 3). The lower pressing plate portion 41 comes into contact with the underside of the standing portion 53 of the sign board portion 50 and biases the underside of the standing portion 53 from below when clamping the sign board portion 50. The contact surface of the lower pressing plate portion 41 has an area approximately equal to that of the lower surface of the rising portion 53. In addition, the lower pressing plate portion 41 has a plate portion extending downward from an end side, and the plate portion and the connecting portion 30 are fixed by a screw portion 70. The upper pressing plate portion 42 comes into contact with the upper surface of the standing portion 53 of the sign board portion 50 and biases the upper surface of the standing portion 53 from above when clamping the sign board portion 50.
[0028] The lower pressing plate portion 41 and the upper pressing plate portion 42 are connected in a generally U-shape in cross section ( FIG. 3( c )). The contact surface of the upper pressing plate portion 42 has an area roughly equal to that of the upper surface of the standing portion 53. The biasing force of the upper pressing plate portion 42 is applied by a screw portion 70 extending from the screw pressing portion 43. The screw pressing portion 43 is a portion that applies a force against the upper pressing plate portion 42, and the sign plate fixing portion 40 as a whole applies a force to clamp and fix the sign plate portion 50. A plurality of screws are arranged in the screw retainer 43, and the tips of the screws are positioned so as to come into contact with the upper retainer plate portion . By rotating the screw, the position of the tip of the screw relative to the surface of the screw pressing portion 43 is changed. Therefore, by rotating the screw, the amount of force applied to the screw against the upper pressing plate portion 42 can be changed.
[0029] The attachment and detachment of the sign board portion 50 will be described with reference to FIG. 3(a) and (b) show the process of fixing the sign board part 50 to the sign board fixing part 40. As shown in FIG. When fixing the sign board portion 50 to the sign board fixing portion 40, first, the screw position of the screw pressing portion 43 of the sign board fixing portion 40 is raised slightly, and the gap between the upper pressing plate portion 42 and the lower pressing plate portion 41 is made wider than the thickness of the standing portion 53 (Figure 3(a)). Next, the sign board portion 50 is moved horizontally toward the sign board fixing portion 40 , and the standing portion 53 is inserted into the gap between the upper pressing plate portion 42 and the lower pressing plate portion 41 . The position of the screw of the screw pressing portion 43 is gradually lowered, and the amount of pressure applied to the upper pressing plate portion 42 is increased until the amount of pressure is sufficient to fix the upright portion 53 from the upper pressing plate portion 42. The sign board part 50 is stably fixed to the sign board fixing part 40. The sign board part 50 is fixed only by tightening the screw of the screw retainer part 43, and is not directly screwed to the standing part 53, so that the work time can be reduced. Furthermore, since a pressing plate is used, the entire standing portion 53 is tightened, so that it can be tightened stably and strongly. Similarly, when removing the sign board portion 50, it can be done by simply tightening the screws of the screw retainer portion 43, so that the work time can be reduced. Therefore, even if the sign board 50 is damaged during the race, the damaged sign board 50 can be quickly removed and a new sign board 50 can be attached, so that the race can proceed smoothly.
[0030] Since the sign board portion 50 has a relatively large area, it may be damaged by the wind or by contact with a runner during a race. Therefore, in order to reduce the risk of breakage, it is possible to provide a reinforcing portion 61 to the sign board portion 50. As one example, as shown in Fig. 4(a), a triangular reinforcing portion 61 is disposed so as to reinforce the support portion 52 and the standing portion 53. It is conceivable to extend the reinforcing portion 61 up to the display portion 51, but since the display portion 51 may come into contact with a player, it is better to have as little reinforcement as possible for the display portion 51. By not reinforcing the display section 51, the characteristics of FRP can be exhibited, allowing it to bend flexibly and protect the player. When there is a vent hole 60, it is preferable to arrange the device so as to avoid the vent hole 60 as shown in FIG. 4(a), since this does not reduce the effect of the vent hole 60. When fixing the sign board part 50 to the sign board fixing part 40, there are cases where the reinforcing part 61 interferes with the upper pressing plate part 42 and the screw pressing part 43. In such cases, as shown in Fig. 4(b), by providing slits 44 in the upper pressing plate part 42 and the screw pressing part 43, interference with the reinforcing part 61 can be prevented. 4(c), two reinforcing parts 61 may be provided. By using such a configuration, the strength is increased, and damage to the signboard part 50 can be prevented.
[0031] In this way, according to the present invention, the sign structure on the wave dissipating device can be simplified, making it easier to replace it above the water, and since the sign is made of a single piece of resin without any structures such as reinforcing frame fittings, the impact upon contact can be reduced.
[0032] In addition, the method of attachment and removal involves inserting the fixed part at the bottom of the sign plate into the sign plate fixing part, which is a plug-in metal fitting, and then crimping and fixing it in place with the screw in the screw holder, which is a fastening element, so replacement can be done quickly.
[0033] Furthermore, since the sign plate portion is a single plate structure, it is easy to handle, lightweight, and convenient to store on land as a replacement part as it does not take up much space.
[0034] In addition, by making the signboard out of FRP, the structure is simplified, contributing to weight reduction and aesthetics.Furthermore, since it is resistant to corrosion and dirt, it is easy to clean. [Industrial Applicability]
[0035] The present invention is a technology for reducing weight and improving aesthetic maintainability in the structure of signboard installation at boat racing venues, and it is possible to install it in place of existing signboards. Therefore, it is believed that the industrial applicability of the signboard-equipped wave dissipating device of the present invention is great. [Explanation of symbols]
[0036] 1 Wave-breaker with signboard 10 Wave-breaking body 11 Wave-breaker body fixing bracket 20 Guardrail section 21 Guardrail plate 22 Guardrail holder 30 Connecting part 40 Sign board fixing part 41 Lower presser plate 42 Upper presser plate 43 Screw holder 44 Slit 50 Sign board section 51 Display section 52 Support part 53 Standing part 60 Ventilation hole 61 Reinforcement 70 Threaded part
Claims
1. A wave dissipating device comprising a wave dissipating body having a buoyant body connected by a connecting part, It is composed of a wave-dissipating body, a guardrail section, a connecting section, a sign board, and a sign board fixing section. The sign board is made of a resin material and has a display section that displays the sign content, a support section that supports the display section, and a standing section that stands up from the support section and is attached to the sign board fixing section, The wave dissipating device with sign plate is characterized in that the standing part is inserted between the upper and lower pressure plates of the sign plate fixing part, and is fixed by being clamped and tightened by the pressure plates.
2. 2. The wave dissipating device with sign board according to claim 1, characterized in that the sign board is made of FRP material.
3. 2. The wave dissipating device with sign plate according to claim 1, wherein the support portion has a hole for ventilation.
4. The wave dissipating device with a signboard according to any one of claims 1 to 3, characterized in that the signboard has a reinforcing portion that reinforces the standing portion and the support portion.
