JPH0627977B2 - Trim angle display device for ship propulsion - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for displaying a trim angle of a ship propulsion device such as an outboard motor and an outboard motor, that is, a vertical rotation angle of the ship propulsion device with respect to a hull. Is.

[Prior Art] In order to drive a ship propelled by an outboard motor or the like in the best condition, it is necessary to optimally adjust the trim angle of the outboard motor or the like according to the running condition. Therefore, this type of ship is provided with a trim angle adjusting mechanism and a trim angle display device for displaying the adjustment result by the adjusting mechanism.

[Problems to be solved by the invention]

However, the conventional trim angle display device is a mere angle display device, and even when the trim angle enters the tilt area, the angle is merely displayed. Here, the tilt region refers to a large trim angle equal to or larger than the predetermined angle α, and for example, the trim angle when the propeller of the outboard motor is completely pulled up from the water when anchored is in the tilt region.

As described above, since the conventional trim angle display device is merely an angle display device, even if the trim angle enters the tilt region during traveling, it is not uncommon for the operator to fail to recognize it. . If the vehicle is traveling with the trim angle in the tilt region, the propeller of the outboard motor will be exposed from the water surface and rotate in the air, which will reduce the load on the engine and cause overspeed. If this state is continued, in the worst case, the engine of the outboard motor or the like may be burned in.

[Means for solving problems]

The trim angle display device of the present invention has been made in view of the above problems, and based on the trim angle signal, a trim angle sensor that detects the trim angle of the marine vessel propulsion device and outputs a trim angle signal according to the detection result. To determine whether the trim angle is within the tilt area. If the trim angle is not within the tilt area, only the display point corresponding to the trim angle is lit,
If the trim angle is within the tilt area, the display unit lights all the display points.

[Action]

If the trim angle is in the trim area (non-tilt area), only the display points corresponding to the trim angle are lit, and when the trim angle enters the tilt area, all the trim angle display points are lit and a warning is displayed.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to Examples.

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a perspective view showing the outer appearance of a ship to which the present embodiment is applied and which is equipped with an outboard motor. The trim angle display device of the present embodiment can be roughly divided into a detection unit 7 and a display unit 8, and the detection unit 7 is composed of the existing trim angle sensor 1. The trim angle sensor 1 is installed in the main unit 12 of the outboard motor 11 or the hull mounting portion 13, and converts the trim angle detected through mechanical means into a voltage value. Such a trim angle sensor is disclosed, for example, in JP-A-55-852.
No. 03, etc.

The display unit 8 is composed of the control unit 2 and the liquid crystal display means 6. The control unit 6 can be functionally divided into an A / D conversion means 3, a trim angle determination means 4 and a display control means 5. A / D conversion means 3
Since the voltage value output from the trim angle sensor 1 is simply converted into a digital value, the output value directly indicates the trim angle. The trim angle determination means 4 is
The digital trim angle signal from the A / D conversion means 3 is input, and first, it is determined whether or not the trim angle indicated by the digital trim angle signal is equal to or larger than the predetermined angle α. At this time, if the trim angle is equal to or greater than the angle α, that is, if it is in the tilt region, a warning signal is output. On the other hand, the trim angle is a predetermined angle α
If it is the following, that is, if it is a trim area, it is associated with any of the 13 levels preliminarily divided and a level signal having that level value as the content is output. The display control means 5 is means for driving and controlling the liquid crystal display means 6 based on the signal from the trim angle determination means 4.

As shown in FIG. 3, the liquid crystal display means 6 is incorporated in a marine meter 30 including various display parts including an engine speed display part 31 and is divided into 13 stages in the vertical direction. . On the right side of the liquid crystal display means 6, 1
Numbers up to 5 are printed and displayed at almost equal intervals,
Numbers 1-5 are level 1, 4, 7, 10, 13 respectively
Is supported.

Next, the operation of this embodiment will be described. The trim angle can be adjusted, for example, by using the driving force of a hydraulic cylinder or the like. When the trim angle adjusting switch 14 is switched to the up side, the trim angle is increased, and when it is switched to the down side, the trim angle is adjusted. It can be operated to decrease.

The trim angle thus adjusted is calculated by the trim angle sensor 1
And is input to the trim angle determination means 4 via the A / D conversion means 3. Now, assuming that the trim angle is approximately at an intermediate angle and the trim angle determination means 4 determines that the trim angle is level 7 of 13 levels, the level signal is input to the display control means 5. The display control means 5 lights only the display points corresponding to the level 7 (numerical display 3) of the liquid crystal display means 6 by the input of this level signal. FIG. 3 shows the display state at this time, and the printed number 3
It can be seen that the bar-shaped display point at the position of, that is, the display point of level 7 is lit (color is changed to black).

If the trim angle increases from this state, the bar display (level 7) at the position of the numeral 3 disappears and any bar display from level 8 to level 13 is displayed. On the contrary, if the trim angle is reduced, any one of the levels 1 to 6 is displayed. That is, in any case, the level is displayed as a point by one bar.

On the other hand, when the trim angle exceeds the predetermined angle α and enters the tilt area, the trim angle determination means 4 determines this and outputs a warning signal. The display control means 5 receives the warning signal and turns on all the display points of the liquid crystal display means 6. Fourth
The figure shows the display state at this time. The display of a plurality of bars as described above does not occur when the trim angle is normal at a predetermined angle α or less, that is, when the trim angle is in the trim area. Therefore, such a display is very noticeable, and the operator can intuitively know that the trim angle has entered the tilt region. Therefore, this all-lit display can be said to be extremely excellent as a warning display.

Moreover, since the angle display of the trim angle and the warning display for warning that the trim angle has entered the tilt region are in the same display region, "only the display region regarding the trim angle need be paid attention". It gives the operator a sense of security and enhances the certainty of visual recognition.

It goes without saying that the control unit 2 of this embodiment can be configured by a single microcomputer. FIG. 5 is a flowchart showing an operation flow in such a case. After detecting the trim angle (step 10
1) If the trim angle θ is equal to or larger than the predetermined angle α, all the bar indicators are turned on (steps 102 and 104), and the trim angle θ
If is smaller than the predetermined angle α, the bar display of the corresponding level is performed.

Further, in this embodiment, the trim angle is displayed in 13 levels, but the number of levels is not limited to this.

〔The invention's effect〕

As described above, according to the trim angle display device for a ship propulsion device of the present invention, the trim angle is in the trim region (non-tilt region).
If it is, only the display points corresponding to the trim angle are lit, and when the trim angle enters the tilt area, all the trim angle display points are lit. Therefore, if the operator pays attention to one display area, the operator can visually recognize the angle display of the trim angle and the warning display when the trim angle enters the tilt area. Moreover, when the angle is displayed, it is always 1 in the display area.
While only the points are lit, when displaying the warning, all points are lit in contrast to the angle display, so it is very noticeable and has a high warning ability.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is a perspective view showing a ship to which the present embodiment is applied, and FIGS. 3 and 4 show liquid crystal display means 6 of the present embodiment. FIG. 5 is an external view, and FIG. 5 is a flow chart showing the operation when the control unit 2 of this embodiment is constituted by a microcomputer. 1 ... Trim angle sensor, 2 ... Control unit,
3 ... A / D conversion means, 4 ... trim angle determination means, 5 ...
... Display control means, 6 ... Liquid crystal display means, 7 ... Detection section,
8 ... Display, 11 ... Outboard motor.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Nori Tomonaga 1400 Shimbashi-cho, Hamamatsu-shi, Shizuoka Sanshin Industrial Co., Ltd. (72) Inventor Kazuhiro Nakamura 1400 Shimbashi-cho, Hamamatsu-shi, Shizuoka Sanshin Industrial Co., Ltd.

Claims (1)

[Claims] 1. A trim angle sensor for detecting a trim angle of a ship propulsion device and outputting a trim angle signal according to the detection result, and for determining whether or not the trim angle is within a tilt region based on the trim angle signal. If the trim angle is not in the tilt area, only a display point corresponding to the trim angle is turned on, and if the trim angle is in the tilt area, all the display points are turned on. Trim angle display device.