JPS5928322Y2 - Direction display board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a direction display board that sets the sailing direction of a ship and displays the deviation between the set direction and the direction of the ship's bow.

When operating a ship, the direction of navigation is set in advance on the direction display board, the current direction of the ship's bow is displayed on this board, the deviation between the two is determined, and the ship is maneuvered to eliminate this deviation so that it can follow the prescribed course. The ship's navigation is secured.

Conventionally, in such a direction display board, the direction has to be set again each time a ship changes its navigation direction.

Therefore, for ships traveling on a nearly straight course,
For example, if the direction display board is set to proceed northwest on the outbound trip, this set direction must be reversed 180° to the southeast direction on the return trip.

Here, if the number of these round trips is large, the direction of the ship will be changed frequently, and this azimuth setting must be done each time, which has the disadvantage of being complicated.

The present invention provides a very effective direction display board for ships that make many trips in a straight line over such short distances, and consists of a disc rotatably mounted on a support base. A scale for setting the heading, a display for displaying the geographical direction, and a display for displaying the heading direction are provided on the top, and the display on both displays can be controlled to be reversed by 180 degrees. This eliminates the above-mentioned drawbacks.

A detailed explanation will be given below according to examples.

FIG. 1 is a plan view showing an embodiment of the present invention.

In the figure, reference numeral 1 denotes a support base, on which a deviation scale 2 is graduated between approximately 30° left and right with Oo as the center.

Reference numeral 3 denotes a disk rotatably mounted on the support base 1, and an azimuth scale 4 is engraved on the periphery of the disk over the entire area.

Reference numeral 5 denotes a direction indicator disposed on the disk 3 for displaying geographical directions, and eight display elements indicate eight geographical directions.

Each display element of the orientation display 5 uses an element that can be reversed by electromagnetic control, such as sold under a trade name such as Magnesine, and 180° opposite orientations are indicated on the front and back sides.

Reference numeral 6 denotes a bow indicator placed on the disc 3 just inside the azimuth scale 4, and is for displaying the direction of the bow.

This bow indicator 6 has a large number of display elements arranged on the circumference, and each display element uses, for example, a light emitting diode, so that the element corresponding to the direction in which the bow is facing emits light. There is.

The bow indicator 6 is configured so that light emission can be switched to elements located symmetrically with respect to the center point of the disc 3 by switching a switch or the like.

Reference numeral 7 denotes a switching means for electromagnetically or electrically controlling the heading indicator 5 and bow indicator 6 to invert the display by 180 degrees, and is composed of a push button switch with a lamp.

Next, its usage will be explained.

Assume that a ship is now sailing back and forth on a course connecting the northwest and southeast.

In this case, sailing in the northwest direction is the outbound route, and sailing in the southeast direction is the return route.

First, before operating the ship, the switching means 7 is set in the forward direction, and the disc 3 is manually rotated so that the disc 3 is aligned with the 0° scale of the deviation scale 2 carved on the support base 1. Match the northwest corresponding scale of the engraved azimuth scale 4.

This completes the setting of the ship's navigational direction on the direction display board.

FIG. 2 shows this state.

At this time, the bow indicator 6 displays the direction in which the bow is facing on the azimuth display board with the azimuth set in this way.

Therefore, if the bow is accurately facing northwest, the display element corresponding to the northwest scale on the azimuth scale 4 of the bow indicator 6 will emit light, and if it deviates, the light emitting element will change in accordance with the deviation.

The reading on the deviation scale 2 of the light-emitting display element is the deviation between the navigation direction and the set course, and the direction is displayed so that this deviation is always zero, that is, the direction corresponding to the 0° point of the deviation scale 2. By steering the vessel so that the display element of the vessel 3 emits light, the vessel can be accurately navigated on a set course.

When the ship reaches its destination and reverses its direction, the ship's bow faces southeast, and therefore, on the bow indicator 6, the display element near the symmetrical position to 0° on the deviation scale 2 lights up.

Here, the switching means 7 is operated to set it in the opposite direction.

As a result, each display element of the heading indicator 5 is electromagnetically controlled and its front and back sides are reversed, and the heading display is reversed by 180°.The lighting element of the bow indicator 6 is also reversed by 180°, and the deviation scale 2 is set to 0. The elements near the point will light up.

That is, when the bow of the ship is accurately facing southeast along the homeward course, the display element corresponding to the 0° point on the deviation scale 2 emits light.

FIG. 3 is a diagram showing such a state. By maneuvering the ship in the same way as on the outbound trip, it is possible to navigate without deviating from the course.

As explained in detail above, according to the direction display board of the present invention, when a ship is reciprocating along the same straight route, if the direction is manually set first, then the ship's navigation will be controlled. Since orientation setting is completed simply by operating the switching means when reversing the direction, the complexity of orientation setting is significantly reduced.

In the embodiment described above, the azimuth scale 4 is provided independently, but each display element of the bow indicator 6 may be used instead.

Furthermore, the display elements of the heading indicator 5 and the bow indicator 6 are not limited to those of this embodiment. It is easy to substitute ``first name'', etc.
The same applies to the display element of the direction indicator 5.

Furthermore, it goes without saying that the switching means need not be limited to push button switches with lamps.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, and FIGS. 2 and 3 are diagrams for explaining its use. 1... Support stand, 2... Deviation scale, 3.
... Disk, 4 ... Azimuth scale, 5 ...
... Direction indicator, 6... Bow indicator, 7...
...Switching means.

Claims (1)

[Scope of utility model registration request] A bearing display board that displays the sailing direction of a ship and the deviation between the heading set as the sailing course and the heading direction, and is equipped with a deviation scale for reading the deviation between the set heading and the heading direction. a base, a disc rotatably mounted on the aforementioned support base for setting the navigational direction, and a direction display capable of reversal control mounted on the disc and displaying the geographical direction. and a bow indicator that is attached to this disc and displays the direction of the bow, which can be controlled in reverse.
A direction display board comprising a switching means for reversing the direction.