JPH0631077B2 - Ship steering gear - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of use) Particularly, the present invention relates to a steering angle sensing device for a small boat.

(Prior Art) In a ship with a power propulsion device such as an outboard motor, an inboard motor, and an outboard motor, a steering device is provided as one of the marine vessel maneuvering means.

FIG. 10 is an external system diagram of a steering device that has been conventionally used in an outboard motor.

The outboard motor 13 attached to the center of the stern transom 12 of the hull 11 is tiltable around a tilt bolt 22 and is rotatable about a center line V of a steering shaft (not shown).

Further, it has a manual hydraulic control device 14, and the steering drive device 15, the electric hydraulic device 16, the control device 17, the magnetic sensor 18, and the steering angle sensing device 31 form an automatic control device 44. 20 is a remote steering device.

The steering angle sensing device 31 includes a plane passing through the center line of the steering bracket 27 at the maximum right turning position and the center line V of the steering shaft, the steering bracket turning right limit plane R, the center line at the maximum left turning position, and the steering shaft. Is arranged along the stern transom 12 on the outer side and side of the V-shaped space formed by the plane passing through the center line V and the left limit surface L for turning the steering bracket.

The steering angle sensing device 31 is a rotary type, has a lever 31 a, and is driven by the rotation of the steering bracket 27 by a steering angle sensing device drive rod 60 attached to the end of the piston rod 35.

FIG. 11 is an external system diagram of a steering device that has been conventionally used in an inboard motor.

In the figure, a surface R of the steering bracket 27 attached to the rudder shaft 24 'forming the steering shaft is in contact with the outer shell of the maximum right turning position and passes through the rudder shaft 24', and a maximum left turn position is in contact with the outer shell of the rudder shaft 24 '. A rotary steering angle sensing device 31 was provided outside and laterally of the V-shaped space formed by the passing surface L in a direction perpendicular to the stern transom 12.

(Problems to be Solved by the Invention) For the above reasons, in the outboard motor steering system shown in FIG. 10, not only the steering drive device 15 itself occupies a space, but also the steering angle sensing device 31 serves as the stern transom 12. There was a problem of taking a large space in the parallel A direction.

Further, in the steering device for the inboard motor shown in FIG.
The steering angle sensing device 31 is a rotary type, and its rotation angle is 180 degrees or less due to the dead center when driven by a link. Similarly, since the steering angle is functionally about 60 to 90 degrees, the lever 31
The length of a cannot be made sufficiently smaller than the radius of the steering bracket 27 up to the connecting portion 61 with the steering angle sensing device driving rod 60. Further, the radius needs to have a large length in order to ensure the accuracy of the steering angle measurement. That is, A
However, there is a problem in that the space that can be utilized by the ship is reduced.

(Means for Solving Problems) A steering bracket for a ship steering device that is driven integrally with a steering shaft by a steering drive device that steers the ship, and a steering angle sensing device for knowing a steering angle. In a steering device for a ship in which the input part of is linked, a surface that is in contact with the outer shape of the maximum right turning position of the steering bracket and passes through the steering axis,
At least a part of a steering angle sensing device including a slide part that linearly moves and a main body part into which the slide part can be inserted is arranged in a V-shaped space formed by a surface that is in contact with the contour of the maximum left turning position and passes through the steering shaft. Characterized by the fact that
The steering device for a ship is provided with a steering angle sensing device.

(Operation) Since the slide type is used, the slide part also serves as the steering angle sensing device driving rod when the rotary type steering angle sensing device is arranged.

Further, at least one of the steering angle sensing devices is provided in a V-shaped space formed by a surface that is in contact with the contour of the maximum right turn position of the steering bracket and passes through the steering axis and a surface that is in contact with the contour of the maximum left turn position and passes through the steering axis. Since the parts are arranged, the size becomes compact.

(Embodiment) FIG. 1 is a system diagram of a steering device in a ship using the present invention and employing an outboard motor as a ship propulsion device. FIG. 2 is a side view of the steering angle sensing device of this embodiment as seen from the direction of arrow II in FIG. FIG. 3 is the first in this embodiment.
FIG. 4 is a layout drawing showing a modification, and FIG. 4 is a layout drawing showing a second modification of the present embodiment.

1 and 2, 11 is a hull, 12 is a stern transom, 13 is an outboard motor, 14 is a manual hydraulic control device, 15
Is a steering drive device, 16 is an electrohydraulic device, 17 is a control device, 18 is a magnetic sensor, 19 is a battery, and 20 is a remote steering device.

The outboard motor 13 includes a mounting bracket 21 for the hull 11.
And a tilt bolt 22 that is rotatable about a tilt bolt 22 that penetrates the mounting bracket 21 in a substantially horizontal direction.
And a steering shaft 24 that penetrates the swivel bracket 23 in a substantially vertical direction and is rotatably arranged with respect to the swivel bracket 23. The propulsion unit 2 of the outboard motor 13 is attached to the support member 25 extending horizontally above and below the steering shaft 24.
6 is attached. A steering bracket 27 is integrally provided on the upper hull side of the steering shaft 24.
The steering bracket 27 is a forged bracket portion 27a.
And a detachable sheet metal bracket portion 27b.

An engine 28 is disposed above the propulsion unit 26, and a propeller 29 driven by the power of the engine 28 is disposed below the propulsion unit 26.

Since the propulsion unit 26 is arranged as described above with respect to the hull 11, it can be tilted around the tilt bolt 22 integrally with the swivel bracket 23 and the steering shaft 24. Further, since it can rotate in the left-right direction around the steering shaft 24, it can be steered.

The steering drive device 15 includes a hydraulic cylinder unit 30 and
The steering angle sensing device 31, a support rod 32, an arm 33 connecting each member, and a drive rod 34. The hydraulic cylinder unit 30 includes a piston rod 35 bolted to an arm 33 and a hydraulic cylinder 37 having hydraulic hoses 36 connected to both ends.

The hydraulic cylinder 37 is formed by a surface R that contacts the outer contour of the steering bracket 27 at the maximum right turning position and passes through the steering shaft 24, and a surface L that contacts the outer contour of the steering bracket 27 at the maximum left turning position and passes through the steering shaft 24. Are placed in a V-shaped space. The support rod 32 penetrates through the tilt bolt 22 and is rotatable with respect to the tilt bolt 22, but is fixedly disposed in the longitudinal direction. Both ends of the drive rod 34 are pin-connected to the hydraulic cylinder 37 and the steering bracket 27.

From the above, the dimension A ′ of the hydraulic cylinder unit 30 from the center to the side of the outboard motor can be reduced.

The steering angle sensing device 31 is composed of a potentiometer, and has a fixed rod 38 that forms a slide portion that moves linearly and a casing 39 that is a main body portion into which the fixed rod 38 can be inserted.

Support rod 32, piston rod 35, and fixed rod 38
Are arranged substantially parallel to each other and are bolted to the arms 33, respectively, and the casing 39 contacts the outer shape of the steering bracket 27 at the maximum right turning position between the tilt bolt 22 and the hydraulic cylinder 37 and passes through the steering shaft 24. It is arranged in a V-shaped space formed by a surface R and a surface L which is in contact with the outer contour of the steering bracket 27 at the maximum left turning position and passes through the steering shaft 24. For this reason, the dimension A of the steering angle sensing device 31 from the center of the outboard motor to the side can be made smaller like the dimension A ′ of the hydraulic cylinder unit 30.

The casing 39 may be located at the position B or the position C. As shown in FIGS. 3 and 4, either the fixed rod 38 or the casing 39 may be rotatably connected to the hydraulic cylinder 37 and the other may be rotatably connected to the arm 33. At this time, the casing 39 does not have to be arranged in parallel with the support rod 32.

The steering angle sensing device 31 is not only a potentiometer,
An induction voltage sensing type instrument including a rod-shaped movable iron core and a fixed coil may be used.

Now, returning to FIG. 1, the manual hydraulic control device 14 includes a steering wheel 40 and a manual hydraulic pressure generation unit 41. The manual hydraulic pressure generation unit 41 is connected to a hydraulic cylinder 37 via a midway adapter 42 by a hydraulic hose 43.

Then, the steering drive device 15, the electro-hydraulic device 16, the control device 17, the magnetic sensor 18, and the battery 19 constitute an autopilot device 44. That is, when a desired bearing is set by the navigation bearing setting dial 45, the magnetic sensor 18 detects the difference between the desired bearing and the actual bearing of the ship, and sends a signal to the controller 17. . The control device 17 operates the electro-hydraulic device 16 based on the difference in heading, sends hydraulic pressure to the steering drive device 15 via the midway adapter 42, and steers the outboard motor. At that time, at the same time, the steering angle signal of the steering angle sensing device 31 is transmitted to the signal line 4
It is fed back to the control device 17 through 6 to control the electro-hydraulic device 16.

Remote steering device 20, control device 17, electro-hydraulic device 16
The steering drive device 15 constitutes a remote steering device 47.

When the steering lever 48 of the remote steering device 20 is rotated, a rotation signal is sent to the control device 17, and the electric hydraulic device 16 and the steering drive device 15 are operated to allow remote steering. Incidentally, 49 is an engine stop switch in an emergency.

Switching between the remote steering and the auto pilot steering is performed by the changeover switch 50 provided in the control device 17.

The battery 19 supplies electric power to the electrohydraulic device 15 and is charged by a power generator (not shown) of the engine 28.

The hydraulic trim device 51 disposed between the swivel bracket 23 and the mounting bracket 21 includes the propulsion unit 26.
The steering drive device 15 is rotatable around the tilt bolt 22 in the up direction (arrow u direction) or the down direction (arrow d direction).

By the way, in a small high-speed ship, even a slight measurement error of the steering angle causes a large meandering because of the high speed. This is also true of the auto pilot device 44.
The same applies to the manual steering control by visualizing the steering angle meter. However, in the present invention, the steering angle sensing device 3
Since 1 is not a rotary type resistor but a sliding type, the measurement accuracy is good and the possibility of meandering can be reduced accordingly.

FIG. 5 is a system diagram of a steering system in the case of two outboard motors with two outboard motors arranged at the stern.

The connecting rod 52 is arranged in the system of the embodiment shown in FIGS. 1 and 2 so that the outboard motor 13 'is steered simultaneously with the outboard motor 13. One end of the connecting rod 52 is pin-connected to the steering bracket 27 of the outboard motor 13 ′,
The other end is pin-connected to the drive rod 34 of the outboard motor 13. An electric line 53 is provided between each outboard motor and the battery 19.
However, there is an engine stop line 5 between each outboard motor and the controller 16.
4 is wired.

In this system, since the dimension A ′ of the hydraulic cylinder unit 30 from the center of the outboard motor to the side and the dimension A of the steering angle sensing device 31 can be reduced, the steering device can be attached even if the width of the boat is small. .

In particular, the compact arrangement of the steering angle sensing device 31, which is an effect of the present invention, is achieved.

FIG. 6 is a system diagram in which the steering system of the second embodiment is arranged. Moreover, as in FIG. 5, the two outboard motors are arranged at the stern of the two engines.

The difference from the first embodiment is that the hydraulic cylinder unit 3
0 and the casing 39 are attached and fixed to the bracket 21. Further, the support rod 32 is arranged not only to be rotatable with respect to the tilt bolt 21 but also to be slidable. The steering bracket 27 and the arm 33 are connected by a drive rod 34.

The steering bracket 27 and the arm 33 of the other outboard motor are connected by a connecting rod 52. And drive rod 3
The connecting portion 55 between the arm 4 and the arm 33 and the connecting portion 56 between the connecting rod 52 and the arm 33 are at the same distance from the support rod 32. Therefore, the steering angles of the outboard motors 13 and 13 'can be made substantially the same.

FIG. 7 is a system diagram in which the steering device showing the third embodiment is arranged.

The difference between this example and the first embodiment is as follows.

The arm 33 is eliminated, and the piston rod 35 and the support rod 32 are rotatably pin-coupled. Drive rod 3
4, the hydraulic cylinder unit 30 is rotatably connected to the steering bracket 27. The steering angle sensing device 31 includes a hydraulic cylinder unit 30 and a support rod 32.
It is arranged so as to be rotatable on both sides.

Although not shown, the slide portion may be coupled to the support rod 32 and the casing 39 may be coupled to the hydraulic cylinder unit 30.

Similar to the first and second embodiments, the steering angle sensing device 3
A compact arrangement of 1 is achieved, and the steering device can be installed even if the width of the ship is small.

FIG. 8 is a sectional view of an essential part of an inboard motor-driven ship equipped with the steering device of the fourth embodiment, and FIG. 9 is a sectional view of an essential part of the steering drive device taken along line IX-IX in FIG. It is a figure.

In the figure, 57 is a rudder, 24 'is a rudder shaft, 27 is a steering bracket, and 58 is a rudder rod inserted in the steering bracket.

A rudder 57 and a rudder shaft 24 'as a steering shaft are arranged in the center of the rear part of the hull 11. The steering bracket 27 extends in the forward direction of the hull and is fixed to the rudder axle 24 '. A steering rod 58 is attached to the steering bracket 27, and a support rod 32 of the steering drive device 15 is attached in the boat width direction. The hydraulic cylinder unit 30 is rotatably installed on the deck 59 of the hull 11.

Reference numerals 58R and 33R are the rudder axle and the arm, respectively, at the time of maximum right turn, and 58L and 33L are the rudder axle and the arm, at the time of maximum differential turn, respectively.

In this embodiment, as in the other embodiments, the steering angle detecting device 31 is integrally incorporated in the steering drive device 15 including the hydraulic cylinder unit 30, the support rod 32, and the arm 33.

As a result, the steering angle sensing device 31 can be easily mounted by simply mounting the steering drive device 15 on the steering bracket 27 and the deck 59. That is, since the steering angle sensing device 31 is incorporated in the steering drive device 15 with high accuracy in a machine factory, variations in steering angle measurement are less likely to be received by outfitting.

(Effect of the Invention) In the steering device, the steering angle sensing device does not take up a large space, and it is possible to ensure the space utilization of the ship.

Further, in a small high-speed ship, even a slight steering angle measurement error causes a large meandering due to the high speed. However, in the present invention, the steering angle sensing device is a rotary resistor. Since the sliding type is used instead of the above, the measurement accuracy is good and the possibility of meandering can be reduced accordingly.

[Brief description of drawings]

FIG. 1 is a system diagram of a steering device in a ship that employs an outboard motor as a ship propulsion device using the present invention. FIG. 2 is a side view of the steering angle sensing device of this embodiment as seen from the direction of arrow II in FIG. FIG. 3 is the first in this embodiment.
FIG. 4 is a layout drawing showing a modification, and FIG. 4 is a layout drawing showing a second modification of the present embodiment. FIG. 5 is a system diagram of a steering system in the case of two outboard motors with two outboard motors arranged at the stern. FIG. 6 is a system diagram in which the steering system of the second embodiment is arranged. FIG. 7 is a system diagram in which the steering device showing the third embodiment is arranged. FIG. 8 is a sectional view of an essential part of an inboard motor-driven ship equipped with the steering device of the fourth embodiment, and FIG. 9 is a sectional view of an essential part of the steering drive device taken along the line IX-IX in FIG. It is a figure. FIG. 10 is an external system diagram of a steering device that has been conventionally used in an outboard motor. FIG. 11 is an external system diagram of a steering device that has been conventionally used in an inboard motor. Hull …… 11, Outboard motor …… 13 Stern transom …… 12, Steering drive …… 15 Tilt bolt …… 22, Drive rod …… 34 Steering shaft …… 24, Piston rod …… 35 Rudder shaft …… 24 ′, Hydraulic hose …… 36 propulsion unit …… 26, hydraulic cylinder …… 37 steering bracket …… 27, fixed rod …… 38 engine …… 28, casing …… 39 propeller …… 29, heading setting dial …… 45 Hydraulic cylinder unit …… 30, signal line …… 46 Steering angle sensing device …… 31, connecting rod …… 52 V type space …… V, electric line …… 53 Lever …… 31a, engine stop line …… 54 Support rod ...... 32, Steering angle sensing device drive rod …… 6
0 Arm …… 33 Surface of the steering bracket that touches the contour of the maximum right-turning position and runs through the steering axis …… R Surface of the steering bracket that touches the contour of the maximum left-turning position and that runs through the steering axis …… L Steering angle sensing device 31 Dimensions from the center of the outboard motor to the sides ...
… A

Claims (2)

[Claims] 1. A steering bracket that is driven integrally with a steering shaft by a steering drive device that steers the ship, and an input portion of a steering angle sensing device for knowing a steering angle. In the steering device, a sliding portion that linearly moves in a V-shaped space formed by a surface that is in contact with the outer shape of the steering bracket at the maximum right turning position and passes through the steering axis and a surface that is in contact with the outer shape of the maximum left turning position and passes through the steering axis. And a steering angle sensing device including a main body part into which a slide part can be inserted, at least a part of which is arranged. 2. The steering apparatus for a marine vessel according to claim 1, wherein the steering driving device and the steering angle sensing device are arranged in parallel.