JPS6349516B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a destructible start sign board for a boat racecourse, and is based on a divided invention of Japanese Patent Application No. 1983-25158 (Wave-dissipating device with guard rail and its mooring fixing device for a boat racecourse) Regarding.

At the boat racecourse, boat races will be conducted as follows. As shown in Figure 15, a large clock T is installed near the stand on an extension of the starting line L, which is set perpendicular to the competition water surface from the center of the stand, and is located 150 meters to the right of the starting line at the center of the competition water surface. The first turn mark (as shown) is set symmetrically with the second turn mark M on the water surface 150m to the left of the starting line.

Then, on the course side of wave dissipating device A installed on the water surface near stand S, move 5m in the opposite direction from the starting line L towards the second turn mark M, 40
Five start signboards C are placed at right angles to wave breakers A at each location of 80m, 100m, and 150m (i.e., on an imaginary line extending perpendicularly from the second turn mark M toward stand S). Protrudes toward the course and is provided in parallel. Before the required race, the six racing boats gathered near the second turn mark M.
Follow the movement of the hands of the large clock T and reach the starting line L.
The boats made a run-up toward the start line, adjusted their speed while looking at each start sign board C, and gradually increased their speed.The moment the hands of the large clock T reached 0, each boat reached almost full speed and reached the starting line. If all the boats are between the starting line and the 5m line, the start is established, and after passing the starting line, each boat rushes toward the first turn mark and completes the first and second turns.
Race by circling the mark the required number of times.

Each boat sails at high speeds (up to 80 km/h), so when turning a corner, the centrifugal force causes the boat to skid, causing it to veer off course and pull toward the quay. Collision with other equipment may result in injury, or in the worst case scenario, death of the player.

In particular, from the quay side where stand S is installed, as mentioned above, the direction is from the start line L to the second turn mark M, and there are five start sign boards protruding parallel to the course side, so it is easy to see the boat race. If the boat speeds up, the centrifugal force will cause the boat to skid, and if the boat is operated incorrectly, it is likely to collide with the start sign board.

The first object of the present invention is to provide a wave dissipating device installed parallel to the water surface in front of the quay on the stand side of a boat race course.
Start sign boards made of easily destructible lightweight materials such as foam are placed parallel to the float at regular intervals at right angles to the course side on the floats installed from the second turn mark M to the start line L. This makes it easier to adjust the speed of the race, and to ensure a fair start, and in the unlikely event that one of the boats leaves the course and collides with the sign board, this will be destroyed to protect the athletes and boats, and the board will be ready until the next race. To provide a breakable start sign board capable of quickly replacing and installing a destroyed sign board with a spare sign board within a short time.

A second object of the present invention is to provide quays, poles, and
To provide a wave-dissipating device that is installed on the water surface in front of towers and other equipment to dissipate the above-mentioned undertow and return waves, eliminate actual damage such as capsizing due to waves, and ensure smooth and high-speed navigation of each boat. .

Next, embodiments of the present invention will be described with reference to the accompanying drawings. In Figures 1 to 4, glass fiber reinforced plastic is molded to have a constant length in the longitudinal direction,
In addition, the outer edge 2a' of the cross-sectional umbrella-shaped body 1 having an outer slope 2a and an inner slope 2a in the lateral direction is bent downward, the inner edge 2b' is slightly curved upward (4), and the inner slope is formed by bending the outer edge 2a' downward. Bend it downward so that it is approximately parallel to 2b (5), provide drainage notches 6 at regular intervals in the longitudinal direction of the inner edge 2b', and cut it downward at regular intervals at right angles to the longitudinal direction of the outer slope 2a. Fitting grooves 8 are formed in parallel, and wave introduction windows 9 are formed at regular intervals approximately in the middle of the inner slope 2b.

A buoyant body 10 made of urethane or the like and having an acute triangular cross section is integrally attached to the back surface of the outer slope 2a of the umbrella-shaped body 1 on the part where the fitting groove 8 is not formed, so as to cover the wave introduction window 9 of the inner slope 2b. The upper edge of the wave backflow prevention plate 7 is attached so that it can be opened and closed inward.

Another umbrella body 1a having a symmetrical structure to this umbrella body 1 is manufactured separately, and after being transported to the boat racecourse, it is placed oppositely, the bent edges 5, 5a are brought into contact, and the required locations are tightened with bolts. (11) These umbrella-shaped bodies are connected together to form a wave dissipating device A having a U-shaped central space 13.

4 to 8 and 15, a horizontal portion 12 facing the space 13 is located in the groove 8, 8a of the umbrella-shaped body 1, 1a.
The angle-shaped square pipe 12 having the angle b is fitted and fixed, and the inclined angle pipe 12a fitted into one groove 8 is fitted into the other groove 8a so that the inclined angle pipe 12a is extended to the bent part thereof. The other inclined angle pipe 12c
The square pipe 15 extending to near the lower end is connected and fixed, and its tip and the square pipe 12c are connected to the vertical pipe 1.
Reinforce the connection in step 6.

A U-shaped reinforcing metal fitting 27 having a width that fits into the U-shaped space 13 is attached to the lower surface of the horizontal portion 12b of the pipe 12.

Horizontal portion 12 of chevron-shaped square pipe 12 of wave dissipating device A
Mounting plates 14, 14 are fixed symmetrically to one side and the other side from the center of the lower surface of b, respectively, and one of the rectangular mounting brackets has bolt fitting holes 28a at both ends on the lower surface of these mounting plates. 28 can be fixed upward and diagonally, and the other curved mounting bracket 28 having a similar shape can be fixed upward and diagonally from the center to a symmetrical position with the mounting bracket 28. After fitting the longitudinal square pipes 30, 30 to these mounting brackets 28, 28, each bolt fitting hole 2
Fit the bolts 29 into the respective vertical square pipes 8a and 28a, and screw the nuts 29a onto the bolts.
0 can be fixed to the lower surface of the horizontal part 12b of the angle-shaped square pipe 12.

Furthermore, fitting rods 31, 31 having mutually different diameters are provided vertically and downwardly protruding from the intermediate portions of both ends of each vertical square pipe 30 for connection, and are arranged in a row.
In order to connect A..., one rod 31 is connected to the other rod 31.
This allows these wave dissipators to be connected.

After being transported to the racecourse water surface, the umbrella bodies 1 and 1a are assembled together to form wave dissipating device A, and each device A is placed at a predetermined location on the race surface, particularly at a certain location from the front of the stand S, parallel to the stand and in a line. and connect one hollow connecting rod 31 at each end of each device by fitting into the other hollow connecting rod 31 of the opposing device.

Next, the longitudinal square pipes 30, 30 for connection are brought into contact with the lower surfaces of the mounting plates 14, 14, and the mounting fittings 28, 28 are fitted to the lower surfaces of each pipe, and the bolt fitting holes 14 of the mounting plates 14 are fitted. Fit the bolts 29, 29 into the bolt fitting holes 28a, 28a of the mounting bracket and the bolts 29, 29', 14', screw the nuts 29a, 29a, tighten them, and install each wave dissipator A, A... in a line. do.

A connecting mounting plate 14a is also fixed to the intermediate lower surface of the horizontal portion 12b of the square pipe 12 with bolts 29 for reinforcement.

In Figures 11 to 16, the second
2 of each wave dissipating device A, A... floating on the water surface in front of the quay from turn mark M to start line L
At right angles to the lower surfaces of the vertical square pipes 30, 30, a space slightly wider than the bottom width of the hollow start sign board 38, which will be described later, is curved into the water from the outside of the square pipe 30 on the course side, and parallel to the water surface. two square pipes 3
2 and 32 project to a certain length parallel to the course side, and bolts 29 and 29 are used to secure the longitudinal square pipe 3.
Fixed at 0.30.

Wave dissipating device A in front on these pipes 32, 32
Two hollow pipes 33', 33 having a height reaching up to the vertical square pipe 30 are provided vertically and parallelly protruding from the side and the tip thereof, and the hollow pipe near the wave absorbing device A has a certain volume. A float 35a having
A float 33b having a larger volume than that of the hollow pipe 33 on the tip side is fixed vertically and in parallel, and a float 33b having a larger volume than that is fixed vertically and parallelly to the upper end of these hollow pipes 33', 33, and also to the upper horizontal part of the pipes 32, 32. The lower surfaces of square pipes 35, 35 that are fixed and horizontally extended are fixed. Furthermore, the square pipes 35, 35 are connected at regular intervals by beams 36, 36..., a flat plate 37 is placed on the square pipes and beams, and bolts 29, 2 are connected.
9..., and the bottom surfaces of breakable hollow sign board units 38, 38... made of foam or the like are adhered to the flat plate 37 with adhesive to make them vertical.
shall be.

In FIG. 14 showing another embodiment of the hollow sign board C, a certain volume is placed in the upper part of one of the vertical hollow pipes 33' near the wave dissipating device among the two hollow pipes 33', 33. A float 34 having a larger volume is provided above the other vertical hollow pipe 33 to balance the buoyancy.

A wave dissipating device A with a start sign board C having such a configuration on the course side is installed on the water surface on the stand S side from the start line L in the direction of the second turn mark M for 5 m, 40 m, 80 m, and 100 m. , and 120m
It is installed at right angles and parallel to the course. Therefore, each float and the start sign board C are at a constant level horizontally above the water surface.

Furthermore, pipe 3 between device A and start sign board C
2, 32, the required mooring fixing device (not shown)
will be established.

When turning a corner, one of the racing boats deviates from the prescribed course due to centrifugal force and is swept toward the wave dissipating device A on the stand S side, and even if it collides with the start sign board C, the sign board will be glued. Therefore, it can be easily peeled off from the flat plate 37, and since it is made of foam, it can be easily destroyed, causing no damage to the athletes or boats, allowing the race to continue as it is, and within a short time after the end of the race until the next race. It becomes possible to easily install a spare sign board on the float 34.

[Brief explanation of the drawing]

Fig. 1 is a schematic partial plan view of a wave dissipating device according to the present invention, Fig. 2 is a partial vertical cross-sectional side view taken along line 11-11 in Fig. 1, and Fig. 3 is a partial vertical cross-sectional view of a guard rail equipped with a buffer device. Side view, Figure 4 is an enlarged vertical cross-sectional side view of Figure 3, Figure 5 is a partially cutaway side view of the connecting longitudinal square pipe, and Figure 6 is an enlarged tip of the longitudinal square pipe in Figure 5. A perspective view, FIG. 7 is a partially transparent plan view of a square-shaped mounting bracket that fixes a longitudinal square pipe near both ends of the lower surface of the horizontal portion of an angle-shaped square pipe, FIG. 8 is a front view of FIG. 7, and FIG. Fig. 10 is a plan view of the mounting plate fixed near both ends of the lower surface of the horizontal portion of the angle-shaped square pipe to which the vertical rectangular pipe is attached; Fig. 10 is a plan view of the connecting mounting plate provided in the center as in Fig. 9; Fig. 11 is A front view of the sign board fixed to the wave dissipating device, Fig. 12 is a partially transparent partial plan view of Fig. 11, and Fig. 13 is a view of X11 in Fig. 11.
1-X111 line side view, Fig. 14 is a schematic front view of another embodiment of the sign board, Fig. 15 is a partially enlarged front view of the sign board, Fig. 16 is a bottom view of Fig. 15, and Fig. 17 is a boat race boat. It is a partial plane schematic diagram of the field water surface. A...Wave dissipating device; B...Mounting part; C...Sign plate; L...Starting line; M...2nd turn mark; S...Stand; 1, 1a...Cross-sectional umbrella shape; 2a...Outer slope; 2b...Inner slope; 6...
...Water drainage notch; 7...Backflow prevention plate; 8, 8a...
Fitting groove; 9... Wave introduction window; 10... Buoyant body; 12
...Chevron-shaped square pipe; 12a, 12c...Slanted angle pipe; 12b...Horizontal part of the mountain-shaped square pipe; 13
... U-shaped central space; 14, 14a ... mounting plate;
15... Inclined angle pipe; 28... shaped mounting bracket; 3
0... Vertical square pipe for connection; 31... Hollow connecting rod; 32... Square pipe; 33, 33'... Hollow pipe; 34, 34a... Float; 35... Float; 36... Beam; 37 ...Flat plate; 38...Sign plate unit.

Claims (1)

[Scope of Claims] 1. A cross section having an outer slope and an inner slope, and a plurality of fitting grooves formed parallel to each other so as to protrude downward at regular intervals in the longitudinal direction of the outer slope and at right angles thereto. Two umbrella-shaped glass fiber reinforced plastic bodies are symmetrically arranged and connected to form a U-shaped wave-absorbing space in the central longitudinal direction, and drainage notches are formed at regular intervals at the bottom of the U-shaped wave-absorbing space, Wave introduction windows are formed at regular intervals on the inner slope of the U-shaped wave dissipating space, and the upper end of a backflow prevention plate is attached to the inner upper part of each wave introduction window so that it can be opened and closed inward, and the fitting groove is not formed. A wave dissipating device in which a buoyant body is fixedly provided on the lower side of the outer slope; and a double inclined angle pipe of a chevron-shaped square pipe whose portion facing the U-shaped wave dissipating space is horizontal is fitted into the fitting groove on both sides. Attach a mounting plate with bolt holes near both ends to the lower surface of the horizontal portion of the angle-shaped square pipe, and attach the vertical connection square pipe to the mounting plate via the square-shaped mounting bracket and bolts. , a mounting part in which connecting rods having different diameters are vertically fixed to each end of each of the vertical connecting square pipes, and a connecting plate is also provided at the center of the horizontal part; Each inner end of the destructible start sign board mounting square pipe is fixed parallel to the horizontal part of the chevron-shaped square pipe to the mounting point of the destructible start sign board, and the course is It curves from the longitudinal angle pipe on the side to a certain depth in the water on the course side, and further extends to a certain length parallel to the horizontal part toward the course side, and on this isometric pipe, it curves toward the water dissipating device. The lower ends of two hollow pipes extending to the water surface are fixed perpendicularly and parallelly to the top and bottom of the pipe, respectively, and a float having a certain volume is attached to the hollow pipe closer to the wave dissipating device, and a float having a larger volume is attached to the other hollow pipe. Floats each having a volume are provided, one end of the upper end of these hollow pipes is fixed to the horizontal part of the angle-shaped square pipe, and the upper corner pipe is connected to the underwater hollow pipe by a parallel upper corner pipe, and the upper corner pipe is spaced at a constant interval. A flat plate is fixed on the upper corner pipe and the beam, and the bottom of a destructible hollow start sign board unit made of foam or the like is glued onto the flat plate, and the sign board is set vertically. A destructible start sign board for boat races.