JPH06347267A - Simple wave-height scale - Google Patents

Abstract

PURPOSE:To obtain a wave-height scale which is used for an operation on the sea, whose structure is simple and which is low-cost by a method wherein a part which corresponds to a definite wave height at the upper part of a rod material is separated alternately into red colors and white colors and the length of each discrimination color is made identical to the height of a float body. CONSTITUTION:A rod material 11 which is passed through the center of a weight body 2 is separated alternately into colors which can be discriminated easily from the color of the sea such as red colors 7 and white colors 8 at prescribed intervals. The rod 1 is fitted and inserted, so as to be freely up and down movable, into a hole in a float body 10 which is composed of rigid-plastic hollow cylinder having the hole whose diameter is larger than the diameter of the rod material 1 in the center. float The height of the float body 10 is made identical to the length of discrimination colors as the red colors 7 or the white colors 6. Then, a wave-height scale which has been lifted up by a wire rope 13 is suspended at the outer circumference of a working region, a fixed leg 6 is thrust into the ocean floor 15, and the weight body 2 is fixed to the ocean floor 15. The float body 10 floats on the surface of the sea 16 due to the buoyancy of seawater, and it is moved up and down between the discriminated red and white colors on the rod material 1 due to waves. Thereby, a wave height can be discriminated only by having a look at the number of discrimination colors which are upper than the surface of the water 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention, when performing marine work,
It relates to a simple wave height scale for knowing whether work is possible.

[0002]

2. Description of the Related Art Conventionally, in wave height meters or tide gauges,
A precision that electrically detects minute pressure changes caused by waves or tides inside the detection unit installed below the sea surface and records them on a drum wrapped with recording paper via an electronic circuit using a battery or a land power source. I was trying to know the wave height etc. with various measuring instruments.

[0003]

As described above, the conventional wave height meter or the like takes out a minute change in the pressure of seawater generated under the sea surface as an electric change and operates the pen through an electric circuit to operate the pen to make a recording paper. Since it is a measuring instrument that records on the graph, it requires precision work, so its price is also expensive, and in order to know the measurement result, it is necessary to remove the recording paper and read the detailed graph, which is troublesome. However, there is a drawback that the wave height cannot be immediately known by simple visual inspection.

The present invention solves the above-mentioned drawbacks, and the Japan Coast Guard provides guidance on wave heights 1.
In the standard of sea work that does not require high precision such as 5 m or more (work stop criteria include visibility of 1000 m or less, wind speed of 10 m / sec or more), since accuracy of about 10 cm or more is not required, It is sufficient if it is possible to immediately know whether or not the wave height is 1.5 m or more just by visually observing the floating body on the sea surface, and a simple and inexpensive wave height with a simple structure for use in such offshore work. The challenge is to provide a scale.

[0005]

In order to solve the above-mentioned problems, the present invention provides a range corresponding to a certain upper wave height,
Alternately, a clear identification color such as red or white with a certain length is used.The length of this identification color and the height of the floating body are made the same, the weight body is fixed to the bottom of the bar, and the floating body is attached to the bar. This is to take a means consisting of a simple wave height scale that is vertically inserted.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows the usage of the simple wave height scale. The simple wave height scale is made of stainless steel rod with a length of about 2 m longer than the water depth. A bar material made of an appropriate material can be used as long as it has one.) A disc-shaped or square-shaped concrete weight body 2 is buried under the
An upper end portion 4 of four stainless steel rods 3 (the same material as that of the rod 1) is fixed to the periphery thereof by welding or the like to expand the lower portion thereof, and is bent so as to hold the weight body 2, The weight body 2 is fixed on the support plate 5 fixed to the lower end of the bar material 1 with this. 4 on the lower surface of the support plate 5.
A fixed leg 6 of about this size is provided, and the bar 3 holding the weight body 2 is also extended downward as the fixed leg 6.

The rod 1 passing through the center of the weight body 2 has 10c.
The colors are alternately divided into colors such as red (or reddish color) 7 and white (or whitedish color) 8 that are easily distinguishable from the sea color at m to 50 cm intervals. As shown, the yellow float 10 (other colors easily distinguishable from seawater) consisting of a hollow cylinder made of a hard plastic or other corrosion resistant material having a hole 9 having a diameter 9 larger than the diameter of the bar 1 in the center thereof. The hole 9 is vertically movably fitted in the rod 1. In this case, the height of the float 10 is preferably the same as the length of the identification color such as red 7 or white 8. A ring 12 made of stainless steel or the like is attached to the upper end 11 of the rod 1, and a shackle 14 of a wire rope 13 for hoisting and hoisting is fitted to the ring 12.

In order to use this simple wave height scale, a required number of simple wave height scales hung by the wire rope 13 are hung around the outer periphery of the work area, and the fixed legs 6 are fixed to the seabed 1.
The weight body 2 is fixed on the seabed 15 by piercing it with about 5 cm. At this time, the float 10 inserted into the bar 1 moves up and down between the red and white of the bar 1 which are alternately identified by the floating waves on the sea surface 16 due to the buoyancy of seawater. Assuming that the length of the red and white portions is 20 cm, the number of red and white above the float 10 in FIG. 1 is 5, but one is actually hidden by the float 10 and is therefore six. Therefore, the height of the bar 1 above the sea surface 16 is 1.2 m, and the floating body 10 causes the ring 12 to rise due to the waves.
It was found that the wave height did not reach the work stoppage standard of 1.5 m even if it went up to just below the ship, and it was found by a quick glance at the number of identification colors that it was possible to carry out material transportation work from the quay and the anchorage of the ship To do.

Unlike FIG. 1, the length of the identification color is 40.
If the number of red and white above the floating body 10 is 3, and the height of the floating body 10 is 40 cm, it is 4 when the part hidden in the floating body 10 is put. , The height of the bar 1 above the sea surface 16 is 1.6 m, and if the number of red and white due to the vertical movement of the floating body 10 is 3 and 3/4, the height of the wave is 1.5 m, In this case, it is judged that it is better to stop the work because the safety standard is barely reached. In this judgment, the height of the float 10 is 3 /
This is because it can be known whether or not the number exceeds 4, but this can be understood only when the height of the floating body 10 and the length of the identification color are the same.

[0010]

According to the present invention, ordinary rods, concrete and appropriate plastic materials are used as materials, floating bodies are molded from the plastic materials and assembled, and the rods are colored with a certain length such as red and white. Since it can be manufactured by extremely simple work of just identifying it and has a simple structure, it is provided at a price of about 1/10 compared to a wave height meter that has a conventional electric circuit and requires precision processing. It is possible to do, and there is no need to record, much less the troublesome operation of removing the recording paper and examining the graph in detail, and its handling is very easy by simply counting the number of identification colors by visual inspection It is very convenient because you can know whether it is inside.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a front view of the seabed and below.

FIG. 2A is a perspective view of a floating body, and FIG. 2B is a plan view thereof.

[Explanation of symbols]

 1 bar 2 weight 7 red 8 white 10 float

Claims (2)

[Claims] 1. A weight member () on the lower part of a bar (1) in which a range corresponding to a certain wave height of the upper part is alternately and clearly defined color such as red (7) and white (8) having a certain length. 2) is fixed,
A simple wave height scale in which a floating body (10) is vertically inserted into a rod (1). 2. The simple wave height scale according to claim 1, wherein the length of the identification color applied to the rod (1) and the height of the floating body (10) are the same.