JPS60135769A - Tidal current meter - Google Patents

Abstract

PURPOSE:To take a measurement speedily and accurately by operating a lock plate forcibly and fixing a compass needle and a pointer of a member which indicates a measured value by the movement of a compass and a resistance plate simultaneously. CONSTITUTION:When a tidal current is measured, a ship is stopped and a main body part 1 is dipped to desired depth and then faces the tidal current straight through a horizontal stabilizing plate 11 and upper and lower direction stabilizing plates 12a and 12b, so that the resistance plate 84 moves according to a spring 83. When the current speed decreases, the plate 84 is returned by the spring 83, but the pointer 85 is left as it is to indicate the maximum value. Then a weight 55 for movement when fallen abuts on the top surface of a receiving seat 53b to project a projection rod 66 upward through a lock lever 7, cap 69, and advancing element 67, and then press the compass needle 655 against the internal wall of window pane 62, stopping the turning. Then, the tidal current meter is elevated to adjust the N of a direction plate 63 to the N pole of the compass needle 655, and a scale is read corresponding to the indication point to measure the current direction of the tidal current and also read the maximum tidal current speed on the scale of a speed display plate 111 at the position where the pointer part 851 is fixed. Therefore, the measurement is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tidal current meter, and more particularly to a tidal current meter that is used for fishing and is capable of simultaneously and reliably measuring the maximum tidal current velocity and the direction of this tidal current at a desired depth.

In general, tidal currents in the ocean are roughly divided into surface currents, intermediate currents below the main currents, and bottom currents near the ocean floor.
Sea surface currents are subject to the influence of wind and waves depending on the location at one time, and the tidal current speed and direction often differ from the main current.Furthermore, bottom currents near the ocean floor are affected by submarine topography, etc., and the tidal currents are Fish species, which often change in a complex manner, live in the main stream, so in order to catch fish efficiently, it is necessary to quickly, easily and reliably measure the tidal current speed and direction of the main stream at the fishing ground. Traditionally, it has been necessary to rely on the long-standing intuition of fishing workers, and the measurement equipment used at fishing grounds has at most been a measuring float connected to a fixed float on the fishing boat with a string, etc. Let it rise to the surface of the sea.

The flow is visually observed to measure the approximate tidal current speed and direction, but since this is a tidal current on the sea surface and is measured by intuition, it is uncertain for use in fishing. It is something. Furthermore, for general use, there are floats equipped with ultrasonic oscillators and floats that use flow velocity meters.
It is very difficult to handle and also very expensive, making it unsuitable for things like fishing, where measurements must be made quickly and accurately.

It has various problems such as □.

There is a strong demand for a tidal current meter that can simultaneously and quickly measure tidal velocity and direction at a desired depth. .

Therefore, the present invention has been made in consideration of the above-mentioned facts, and in particular, the tidal current velocity value of the intermediate/laminar flow, that is, the main flow.

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The purpose of this invention was to provide a tidal current meter that is extremely easy to handle.

That is, the present invention has a main body formed by protruding a pair of direction stabilizing plates above and below a horizontal stabilizing plate in order to face the current, a compass provided on the main body to measure the direction, and a current velocity. A resistance plate that slides correspondingly and a pointer that moves according to the sliding of the resistance plate are provided, and the main body is also provided to be suspended approximately near the center of gravity. 5: The compass and the pointer were fixed at the same time by dropping it through the pipe.
, a structure consisting of an indicated value and a fixed back part.

Hereinafter, in order to further clarify the gist of the present invention described above,
Examples of the tidal current meter according to the present invention will be given and explained using the drawings.

The drawings show an example of the embodiment, and the main body part i is made of a stainless steel plate or the like and has an angular shape tapered toward both ends, as shown in FIGS. 1 and 2. A rectangular pointer window 110 is provided in the center of the horizontal stabilizer plate 11, which is divided into sections, toward the right end.
o A continuous marking plate 111 with numerical values specified is fixed, and a pair of upper and lower direction stabilizing plates 12a and 12b made of metal plates such as stainless steel plates are respectively inserted on both sides and above and below the pointer window 110. Furthermore, a desired number of connecting rods 121a, 121 are provided between the upper and lower direction stabilizing plates 12&, 12b.
21b are respectively constructed and fixed, and a connecting rod 122a, which will be described later, is installed and fixed at the lower part of the connecting rod 121a near the right side, which penetrates the bearing hole of the horizontal swing support and small shaft 2. ). ,.

Next, a waterproof compass 6 is fixed near the left end of the horizontal stabilizer 11 of the main body 1, and the compass 6 has a cylindrical shape fixed to the surface of the horizontal stabilizer 11, F:. A similarly cylindrical upper chamber 61a is sealed and sealed in a waterproof manner via an O-ring on the royal chamber 61b of 1. The upper chamber 6
A disk-shaped window glass 62 is screwed onto the upper end surface of 1B with an upper lid 64 provided with a circular window through an O-ring, and an annular orientation plate 63. is rotatably arranged, and the upper surface 5 of the direction plate 63 has directions N, 8, . It is engraved with symbols such as E and W.

Further, a shaft support 651 is fixed to the bottom of the upper chamber 61a, and serves as a pivot shaft for pivoting a lever 652, and the other end of the lever 652 is connected to a support shaft 653 erected at the bottom. A magnetic needle 655 is inserted into the upper part of the lever 652 so as to be rotatably attached to and detached from the tip of the support shaft 653 via a buffer spring 654.
is installed.

Further, in the lower chamber 6.1b, a spring 66 is normally attached to the armature rod 66 so as to abut against the lower surface of the lever 652 and push it up.
A lever 67, which is fitted so as to be vertically movable under the downward force of 1, and perpendicular to the lever 67, rotates 1 vertically about a shaft 671 disposed near the right end. At the right end of the lever 67, there is a seal cap 68, which is formed in a sealed manner with an elastic material such as a waterproof seal comb, together with the lower chamber 6.1b, and further at the right end. A metal camp 69 is fitted in each.

Further, the hanging rope portion 5 is horizontally positioned close to the right side of the cap 69 of the compass 6 and approximately at the center of gravity as a whole.

It is fixed so as to protrude onto the fixed plate 11.

The suspension rope portion 5 is designed so that a suspension rope 52 can be inserted through its center, and a holder 51 provided with a bearing hole for a horizontal support shaft 2 (described later) is inserted into the horizontal stabilizing plate 11 and a holder 51 can be inserted into the horizontal stabilizing plate 11 (described later). Sliding tube 5a
& is further provided with a stepped portion 511 that protrudes upward and is fixed, a hanging rope 52 of a desired length is connected thereto without a knot knot or the like at one end, and a flanged cylindrical sliding tube 58 & is fitted. It is inserted into the hanging rope 52 and fitted into the holder 51 in a state where it is always in contact with the upper end of the lock lever 7 described later, and the spring 54 and the catch seat 5
8b into the suspension rope 52, and the sliding tube 53a and the catch seat 58b
are fitted at both ends of the spring 54, and furthermore, a cylindrical moving weight 55 is inserted into the suspension rope 52 and normally spaced above these.

Next, a horizontal excavation fulcrum shaft 2 is rotatably mounted between the holder 51 and the connecting rod 122a, and is shaped so that it can be rotated near the left end □ by contact with the lock lever 7 described below. A link 3a and a link 3b are fixed by screwing or the like to the vicinity of the right end, and furthermore, a lateral vibration shaft 4 is sandwiched and fixed by a stop ring portion 851 described later on the lower end side of the links 3a and 3b. Furthermore, the pointer section 8 is disposed below the horizontal stabilizing plate 11. That is, support columns 811L and 81b are provided near both ends of the horizontal stabilizing plate 11 in a downwardly protruding manner, and a support shaft 82 is screwed to the tips of these columns. A coiled spring 83 with a hook,
The hook part is engaged with the support column 81a, and the other end is fitted onto the resistance plate 84, and the resistance plate 84 is slidably fitted onto the support shaft 82, and the resistance plate 84 On the right side, there is a stop ring part 851 whose sliding part is in the shape of a coil spring, and which is inserted into the transverse vibration shaft 4 at the upper part and is held in the shape of a clamp.
The pointer 85, which is integrally extended, is fitted onto the support shaft 82, and the stop ring portion 851 is fitted along the lower edge of the pointer window 110 of the horizontal stabilizing plate 11, over approximately the entire length thereof. A lock spring 86 is fixed in order to lock and fix it at a fixed time on the far side of the tidal current.

In addition, a shaft 7 is attached to the shaft protruding from the upper end of the lower chamber 61b.
1a, 71b, and 71C are installed between rectangular plates, and the lock lever 7 has a frame shape with the holding shaft 51 sandwiched therein, and the shaft 71a is pivoted to be freely rotatable, and the suspension rope 52
When the moving weight 55 falls through the lock lever 7 and the impact force pushes the lock lever 7 downward, the lever 67, which is in a horizontal state balanced by the spring 661, moves upward with the shaft 671 as the pivot axis. As the broken rod 66 is pushed up and pushed up by the rotating needle, the magnetic needle 655 is pressed against the inner wall of the window glass 62 and stops rotating while being buffered by the springs 65 and 4 due to the upward rotation of the lever 652. At the same time, by rotating the lock lever 7 downward, the link 8a is rotated counterclockwise in FIG.
Rotate the stop ring m55t counterclockwise,
The lock spring 86 is pressed between the coils to stop movement.

Also, the magnetic needle I? A fixed weight 9 for adjusting the balance as a whole is fixed to the lower wall of the A6, sandwiching the horizontal stabilizing plate 11.

In addition, the lock lever 7, links 3a, 3b, horizontal digging fulcrum shaft 2
The indicated value fixing part is composed of a magnetic compass and a pointer fixed at the same time by the transverse swing shaft 4, the protruding rod 66, the lever 67, the lock spring 86, the hanging rope part 5, etc.

Next, the operation of the tidal current meter having the above structure will be explained.

If you want to measure the forward current at a desired location, stop the ship, put in the anchor, and set up the device. Next, hold the hanging rope 52 by hand to hang the main body 1, etc., and then pull up the lock lever 7.

Next, start from the quietest part of the waves as seen from the boat.
Gently put it into the sea, pause for about 5 seconds at certain points,
When submerged to a desired depth, the horizontal direction is stabilized by the horizontal stabilizing plate 11, and the upper and lower direction stabilizing plates 12 & 12b face the current and guide it, and the resistance plate 84 extends its length into the flowing water. A spring 88 arranged to regulate the amount proportional to
Move according to. Note that this resistance plate 84 is returned by the spring 8B when the flow velocity decreases, but the pointer 85 is left behind and the stop ring portion 851 is held between the coils of the lock spring 86, so that the maximum value can be easily adjusted. Can be measured.

After approximately 60 seconds have elapsed since the transfer weight 55 is dropped, it is guided by the hanging rope 52 and connected to the sliding tube 58a, which is normally fitted to the holder 51, by the spring 54. By abutting against the upper surface of the catch seat 58b, the lock lever 7 is rotated downward as described above, and as the cap 69 is forcibly pushed down by the shaft 71b, the balance is maintained by the spring 661. By rotating the horizontal lever 67 upward and pushing out the protruding rod 66, the magnetic needle 655 is pressed against the inner wall of the window glass 62 and stopped rotating, and at the same time the lock lever 7 is moved to the first position. As shown in FIG. 3, when it is forcibly rotated counterclockwise, the horizontal excavation fulcrum shaft 2 is used as the rotation pivot axis, and as the horizontal vibration shaft 4 is also rotated counterclockwise, the stop ring portion 851 is moved by the lock spring 86. Push it to the side and stop it by sandwiching it between the coils.

Next, after pulling the suspension rope 52 and raising the current meter of the present invention,
Align N on the compass 63 with the N pole of the magnetic needle 655, then read the scale corresponding to the indicator point 641 to determine the direction of the current (
The direction can be measured and the stop ring part 8 of the pointer part 8 can be measured at the same time.
Reading the scale on the speed display plate 111 at the fixed position of 51 indicates the maximum tidal current speed at that position or the submerged position, and it can be easily measured just by visually checking this.

As explained above, according to the present invention, after a tidal current meter is fixedly placed, such as by holding a hanging rope, into a fishing area or the like where the tidal current speed value and direction are to be measured, the moving weight guided by the hanging rope is dropped. By simply moving the magnetic compass and the resistance plate, these related components that show the actual measured value can be forcibly activated by the lock plate.
By fixing the magnetic needle and pointer at the same time, measurements can be made quickly and accurately within a few minutes, and it is extremely easy to handle.Furthermore, the related parts are securely locked by the indicated value fixing part mentioned above. There are no problems with measuring underwater, and there are no errors between taking measurements on the surface of the water, and one device can be used repeatedly within a short period of time. Since the above-mentioned problems can be solved very effectively, it must be said that the practical benefits brought about by the present invention are extremely large.

In the above embodiments, the main body parts such as the horizontal stabilizer plate, upper and lower direction stabilizer plates are made of metal materials such as stainless steel, but these and others can be made of steel materials, synthetic resins, wood, ceramics, etc. 1. The specific shape and structure of the tidal current meter according to the present invention, such as that it may be made to have a ground clearance effect, etc.
The material may be arbitrarily determined within the scope of achieving the above-mentioned purpose, function, and effect of the present invention, and it goes without saying that any of these changes will not change the gist of the present invention in any way. do not have.

[Brief explanation of the drawing]

The drawings show one embodiment of the tidal current meter according to the present invention, in which Fig. 1 is a longitudinal sectional view, Fig. 2 is a plan view, Fig. 8 is a sectional view taken along line A-A in Fig. 1, and Fig. 4 is a bottom view. FIG. 5 is a perspective view showing the whole. 1-m=Main body, 11--Horizontal stabilizing plate, 12B--11 upper stabilizing plate, 12 b--1 lower stabilizing plate, 2-m-Horizontal excavation fulcrum shaft, 4--11 lateral vibration axis , 5-11 Suspension rope section, 55-m- Moving weight. 6--Compass, 655--Magnetic needle, 66--Prong, 6--Lever, 7---Lock lever, 8-11 Pointer. Patent applicant: Yasushi Oshima

Claims (1)

[Claims] A main body consisting of a pair of directional stabilizing plates protruding above and below a horizontal stabilizing plate to face the current, a compass installed on the main body to measure the direction, and a compass that slides according to the current velocity. A resistance plate that moves and a pointer that moves according to the sliding of the resistance plate are provided, and a hanging rope is provided to suspend the main body approximately near the center of gravity, and the compass is made by dropping the main body through the hanging rope. A tidal current meter comprising: an indication value fixing part arranged to fix a pointer at the same time.