JP4037849B2 - Wave absorber with guardrail having protective net - Google Patents

Description

The present invention relates to a wave-dissipating device with a guard rail having a protective net, and more particularly to an improvement of the wave-dissipating device with a guard rail having a protective net in a racetrack.

(1) At the boat racetrack, six race boats Bt simultaneously race on two turn marks (buoys) 300m apart and race at high speed (about 80km / h), but the turn marks cannot be bent and raced. It is not unusual to go off the course and crash into the wave-dissipating device A.

(2) Conventionally, even if the offshore raceway crashes into the wave-dissipating device A, the race boat Bt and the athlete (maneuver operator) can be attached to the quay, pole, tower, and other equipment by the guardrail having a shock absorber. I was able to race safely without collision.

The guardrail with wave-dissipating device in a competitive boat field,
JP-A-5-317,530 (a wave-dissipating device for a racetrack and a guardrail with a shock absorber), JP-A-11-104,364 (floating type wave-absorbing device with guardrail) and the like can be mentioned.

(3) However, because the turning speed has improved remarkably due to advances in maneuvering techniques such as monkey turns and improvements to the propellers, the player thrown out of the race boat Bt In recent years, there have been cases in which the steel material and pole of the wave-dissipating device A collide with each other, resulting in injury or, in the worst case, death.

(1) In the case of a monkey turn in which the player stands up from the seat during a turn and steers, the athlete's body will completely jump out of the cowl (protective enclosure) installed at the top of the race boat. At this time, since the position of the player's body is higher than the upper end of the guard rail of the wave-dissipating device A, if the player strikes the wave-dissipating device A with the posture as it is off the race course, the player is thrown from the race boat Bt. The danger of jumping over the guardrail and colliding with the steel material or pole of the wave-dissipating device A is sufficiently conceivable.

(2) In order to prevent this, as a countermeasure method limited to improvement of the wave-dissipating device A main body, it was considered that the guard rail B of the wave-dissipating device A was simply raised. The buoyancy balance of A as a whole is adversely affected, and the entire projected area of the wave-dissipating device A is increased, so that the wave-dissipating device A is easily affected by wind.

(3) It is necessary to review the strength of the bracket that supports the raised guard rail B, and the view from the spectator seat is hindered by the increase in the guard rail B, and the guard rail B is also increased from the player side. Some say that the race course is narrow and difficult to run.

(4) Furthermore, the most important thing is that even if the guard rail B is made of reinforced plastic, if the body of the player directly collides, there is still a possibility of serious injury from the magnitude of the impact. These things are problematic to raising the guard rail B of the wave dissipating device A is a countermeasure method is limited to improvement of the wave dissipating device itself from.

(5) Suppress the mass increase during installation as much as possible, maintain the buoyancy balance of wave-dissipating device A, do not disturb the view from the spectator seat, are not affected by wind, have excellent weather resistance, and above all, race There is a need for an invention that has a function of softly receiving and capturing a player thrown out from the boat Bt and preventing it from colliding with the steel material or pole of the dangerous wave-dissipating device A.

(1) The present invention eliminates the safety problem existing in the above-described wave-dissipating device with a guardrail in a boat racetrack. The first gist of the present invention is to install a required number of columns on the wave-dissipating device, stretched wire rope to the required height than the guard rail the upper end of the digestion wave device between the mounting posts, hung guard net to the wire rope, the lower end of the guard net secured to the guardrail top of the strut A guardrail having a protective net, characterized in that a cushioning material is provided at each of the lower and upper end portions bent at a right angle, and a flat portion of the protective net is formed by a rubber band connecting the support column and the protective net. It is a wave-extinguishing device .

(2) The second gist is that two struts are installed on the wave-dissipating device, and a wire rope is stretched between the struts at a height of 1 to 2 m from the upper end of the guard rail of the wave-dissipating device. hung protective net, is the lower end of the guard net a guardrail with wave dissipating device having a guard net, characterized in that fixed to said guard rail top.

(3) Part 3 gist, the material of the synthetic material of the guard net, or natural material, or a guardrail with wave dissipating device having a guard net made as a metal material.

(4) The fourth gist is a wave-dissipating device with a guardrail having a protective net formed by connecting a plurality of protective nets laterally by adding support columns.

(1) The pillars 10 installed at regular intervals on the connection channel C of the wave-dissipating device A, and the pillars 10 that are 1 to 2 meters above the upper surface of the guard rail B of the wave-dissipating device A A protective net 20 suspended from a wire rope 18 stretched between upper ends, and a lower part of the protective net 20 are fixed to a guard rail B of the wave-dissipating device A together with a support pipe 22, and the support 10 and the protective net 20 form formed a flat portion 20d of the guard net with a rubber band 32 that connects, obtained effect shown in the following by which the plurality can be connected to the net-type safety device laterally by adding a strut 10 It is done.

(2) In the wave-dissipating device with a guard rail having the protective net according to the present invention, the protective net 20 is installed from a height of 1 to 2 m above the upper surface of the guard rail B of the wave-dissipating device A. If the race boat Bt goes off the course and crashes into the wave-dissipating device A, and the athlete is thrown out of the race boat, even if it jumps over the guard rail B, it is captured by the protective net 20 in the back, so dangerous extinction It is possible to prevent collision with the steel material or pole of the wave device A.

(3) Since the protective net 20 is installed with the required slack, the shock when the player is captured by the protective net 20 is more than the state in which the protective net 20 is stretched without slack. The effect of further relaxing and the synergistic effect of further increasing the impact load resistance of the protective net 20 are exhibited.

(4) struts 10, strut on 10a respectively, since it is constituted by struts under 10b, compact, after first fixing the connecting channel C of the wave dissipating device A easy said supporting pillars under 10b handling lightweight Since the upper column 10a is fitted, the work can be performed even on the unstable wave-dissipating device A floating on the water surface.

(5) The support column 10 and the protection net 20 are produced by bending the upper shape of the support column 10 at a right angle so that it can be installed with a sufficient distance. However, the protection net 20 has an appropriate slack. It is installed, and when the athlete's body collides with the protective net 20, the mesh of the protective net 20 is extended by the impact force. Even if it is yes, in order to prevent the player's body from directly colliding with the support 10, cushioning materials 16 are installed on the upper and lower parts of the support 10.

(6) Further, in the processing bag 20b of the lower portion of the protective net 2 0 through the support pipe 22, is the pressurized Engineering bag 20b through the support pipe 22 open to the guardrail B upper portion of the wave dissipating device A at several points was so fixed in the hole 20c and the cable tie 28 has a structure integrated with the guardrail B, it was further rubber band 32 that connects strut 10 and the guard net 20 and the flat surface portion 20d of the guard net 20 the players that are thrown on the guard net 20 prevents the said guard rail B of digestion wave device a, since it is trapped in the flat portion 20d surrounded by the guard net 20 from rebounding to racecourse side be able to. For this reason, there is an effect of preventing a risk that a player who bounces back to the race course side is caught by another race boat Bt and injured.

(7) Since the structure of the wave-dissipating device with a guardrail having a protective net is simple, each member can be easily manufactured, transported, assembled on site, and attached.

(8) Therefore, since the configuration is simple, it is easy to add to the existing wave-dissipating device A, and by changing the shape of the attachment portion of the lower column 10b, various types of wave-dissipating devices A with guardrails can be used. Can also be installed.

(9) Further, even when the net-type safety device is replaced due to periodic inspections or aging fatigue, the overhaul or disassembly work is easy.

As described above, in the invention according to this patent application, two struts are installed on the wave breaker, and a wire rope or the like is placed between the struts at a height of 1 to 2 m from the upper surface of the guard rail of the wave breaker. tension, hung guard net therefrom, to secure the lower end of the net guardrail top of wave-dissipating device, characterized in that formed by connecting a plurality of the guard net laterally by continue to add more post protection A wave-dissipating device with a guardrail having a net .

Embodiments of the invention described in the appended claims will be described with reference to the drawings. 1 and 2, a wave-dissipating device A with a guardrail having a protective net according to claims 1 and 2 has steel columns 10 and 10 having a height of 1 to 2 m above the upper surface of the guardrail B, respectively. Each steel column 10 is composed of an upper column 10a and a lower column 10b.

The seating surface of the street, said supporting pillars under 10b shown in FIG. 3 is firmly bolted 12 through the stringer coupling channel C is a structural member of the wave-dissipating device A, and the channel-fixing member 14. As shown in FIG. 2, shock absorbers 16 are installed on the support 10 at the lower part of the support 10 and at the upper end bent at a right angle, respectively.

  As shown in FIGS. 1 and 2, a wire rope 18 is installed at the upper end of the column 10, the wire rope 18 is connected to the upper end of the column 10 with a shackle 30, and a turnbuckle 32 is adjusted so that a constant tension is obtained. It is stretched.

  As shown in FIG. 5, the protective net 20 has a main body with a length of 4 m and a height of 1.6 to 2.3 m, a processing ring 20 a at the upper portion and a processing bag 20 b at the lower portion, and the wire rope 18 is suspended through the upper processing ring 20a.

As shown in FIG. 4, a support pipe 22 is passed through the lower processing bag 20 b, and the processing bag 20 b below the protective net 20 through the support pipe 22 is placed at the upper part of the wave-dissipating device guard rail B at several locations. fixed with drilled hole 20c and the cable tie 28 is integrated with the guardrail B.

With respect to the installation of the protective net 20 described above, the protective net 20 is installed with a certain degree of slack. Therefore, as shown in FIG. so as it makes the flat portion 20d of the guard net 20 by tying the lower strut 10 by a rubber band 34.

The In material of claim 3 wherein the guard net 20 according, synthetic materials, natural materials, metallic materials and the like. The standard strength of the protective net 20 is an impact load of 11.76 kN (1200 kg) or higher, and the protective net 20 has a mesh 1-node and 2-leg tensile strength of 1176 N or higher.

In the embodiment of the fourth aspect, if desired, as shown in FIG. 6, a plurality connectable laterally guardrails with wave dissipating device having a guard net provided with the guard net 20.

It is a partial front view of the Example installed in the wave-extinguishing apparatus with a guardrail which has a protection net | network concerning this invention. 2 is a schematic side view of a wave-dissipating device with a guardrail having the protective net shown in FIG. It is detail drawing which shows the fixed state with the connection channel of a support | pillar on the support | pillar and under a support | pillar. FIG. 5 is a cross-sectional view showing a structure in which a support pipe is passed through a processing bag below a protective net, and is fixed with a hole and a cable tie formed in the upper part of the guard rail of the wave-dissipating device, and integrated with the guard rail. It is detail drawing of a protection net. It is the completion prediction figure of the Example which connected and installed several wave-extinguishing apparatuses with a guardrail which have a protection net | network .

Explanation of symbols

A ... Wave absorber;
B ... Guard rail of wave-dissipating device;
Bt ... race boat;
C: Longitudinal connection channel of wave-dissipating device;
10 ... posts;
10a ... on the support;
10b ... under the support;
12 ... bolts;
14 ... Channel fixing bracket;
16 ... cushioning material;
18 ... Wire rope;
20 ... Protective net;
20a ... processing ring;
20b ... processing bag;
20c ... hole;
20d: the flat part of the protective net;
22 ... support pipe;
28 ... cable ties;
30 ... Shackle;
32 ... Turnbuckle;
34 ... Rubber band.

Claims (4)

Established the post of the required number on the wave dissipating device, a wire rope is stretched to the required height than the guard rail the upper end of the digestion wave device between said supporting pillars, hung guard net to the wire rope, the protection The lower end of the net is fixed to the upper part of the guard rail, cushioning materials are respectively provided at the lower part and the upper end of the upper part that are bent at right angles, and the flat part of the protective net is formed by a rubber band that connects the supporter and the protective net. A wave-dissipating device with a guardrail having a protective net, characterized in that is formed . Digested wave two posts placed on the device, a wire rope is stretched from the guard rail the upper end of the digestion wave device between said supporting pillars to a height of 1 to 2 m, the protective net to the wire rope hung, guardrail with wave dissipating device having a guard net according to claim 1, wherein the lower end of the guard net, characterized in that fixed to said guard rail top. Material synthetic materials of the guard net, or natural material, or guardrail with wave dissipating device having a guard net according to claim 1, wherein comprising a metallic material. 2. The wave-dissipating device with a guardrail having a protective net according to claim 1, wherein a plurality of the protective nets are connected laterally by extending the support columns.