JP2000043791A - Steering apparatus for vessel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent interlocking a steering rubber for mast sailing and a propelling unit for machine sailing when machine sailing is changed to mast sailing, and interlocking the steering rubber for mast sailing and the propelling unit for machine sailing from the same phase when the mast sailing is changed to the machine sailing. SOLUTION: In a vessel including steering rudders 7 (L, R) for mast sailing and a propelling unit 4 for machine sailing provided in the stern portion 3 of a hull 2, switching means 18, 19, 20a and 20b, and 26 are provided for switching the steering rudders 7 (L, R) for mast sailing and the propelling unit 4 for machine sailing non-interlocking states when the propelling unit 4 for machine sailing is tilted up to change from machine sailing to mast sailing, and switching the steering rudders 7 (L, R) for mast sailing and the propelling unit 4 for machine sailing interlocking states of the same phase when the propelling unit 4 for machine sailing is tilted down to change from mast sailing to machine sailing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steering system for a watercraft provided with a rudder for steering during sailing and a propulsion unit for propulsion during running.

[0002]

2. Description of the Related Art Heretofore, there has been known a boat (a so-called motor sailor) in which a sailing rudder having a steering tiller and a propulsion unit for running propulsion having a steering tiller are provided at the stern of a hull. Has been put to practical use.

In such a boat, the rudder steering tiller can steer the sailing rudder like a yacht when sailing, and the propulsion unit for propulsion during sailing can be steered by the propelling machine steering tiller when sailing. You can steer like a boat.

During sailing, it is preferable to tilt the propulsion unit for aircraft propulsion above the water surface so as not to cause sailing resistance.
The propulsion unit for propulsion during traveling is designed and manufactured so that it can be performed only in a state where steering is not performed (around a steering angle of 0 °), or desirably not performed. When the propulsion unit for propulsion during travel is an outboard motor, there is no such restriction, but it is desirable to return to a non-steered state when tilting up in terms of usability.

[0005] In addition, during propulsion, the propulsion unit for propulsion is tilted down below the water surface, and the propulsion unit for propulsion can be steered by the tiller for steering the propulsion unit. In general, the rudder for steering was jumped up on the water surface.However, the jumping up structure became complicated, and if the jumping up structure was simplified, the ship operator had to jump up the rudder. I had to.

By the way, if the running speed is not very high (for example, about 20 knots) at the time of running, there is little influence on the speed even if the rudder for sailing does not jump up on the water surface. Steering in the same phase as the propulsion unit has advantages such as a simpler overall structure.

[0007]

However, when the sailing steering rudder is steered in phase with the sailing propulsion propulsion unit during sailing, the sailing rudder is tilted up during sailing. It is necessary to prevent interlocking with the propulsion unit for travel time propulsion. That is, when the steering unit is steered to the tilted up propulsion unit, the steering of the rudder for sailing becomes heavy.

Further, when switching from sailing to sailing, no matter what phase the steering rudder during sailing is steered, the propulsion unit for propulsion during sailing can be linked with the steering rudder during sailing from the same phase. Need to be In other words, if the interlocking phases of the sailing steering rudder and the propulsion unit for aircraft propulsion are different, the rudder for sailing steering will be damaged by the water pressure during aircraft propulsion, or the rudder for sailing steering and the aircraft propulsion unit for aircraft propulsion will be damaged. Due to the cavitation generated in the propulsion unit, the steering rudder for sailing and the propulsion unit for aircraft propulsion cannot be steered.

SUMMARY OF THE INVENTION The present invention has been made in order to meet the above-mentioned demands. When switching from sailing to sailing, the sailing rudder and the sailing propulsion propulsion unit are not interlocked with each other. It is an object of the present invention to provide a boat steering system in which a sailing steering rudder and a sailing propulsion propulsion unit are linked from the same phase when switching to sailing.

[0010]

In order to solve the above-mentioned problems, the present invention relates to a boat provided with a rudder for sailing at the time of sailing and a propulsion unit for propulsion during running at the stern of the hull. The rudder for sailing steering is steered in tandem with the steering wheel.On the other hand, when the propulsion unit for on-board propulsion is tilted up to switch from propulsion to sailing, the rudder for on-board steering and propulsion for on-board propulsion are used. When switching from sailing to propulsion by tilting down the propulsion propulsion unit during sailing and switching from sailing to propulsion, the steering rudder during sailing and the propulsion propulsion unit during running are switched to the same phase. It is an object of the present invention to provide a boat steering apparatus characterized in that a switching means for switching is provided.

According to the present invention, when switching from sailing to sailing, the sailing steering rudder and the sailing propulsion propulsion unit are switched to the non-interlocked state by the switching means, thereby providing a tilted up sailing propulsion. Since the propulsion unit does not link with the steering rudder during sailing, only the steering rudder during sailing can be steered in conjunction with the steering wheel, so that the steering rudder during sailing can be lightly steered.

When switching from sailing to maneuvering, the switching means switches the steering rudder for sailing and the propulsion unit for maneuvering during running from the same phase to an interlocking state, whereby the propulsion for maneuvering during tilting down is performed. Since the unit is interlocked with the steering rudder for sailing from the same phase, the steering rudder for sailing and the propulsion unit for aircraft propulsion can be steered in phase with the steering wheel. When switching from sailing to sailing, no matter what phase the steering rudder during sailing is steered, the switching unit will be switched so that the propulsion unit can be linked from the same phase as the steering rudder during sailing. As a result, the rudder for sailing during sailing is not damaged by the water pressure during the run, and no cavitation occurs between the rudder for sailing and the propulsion unit for propulsion during sailing. The problem that the propulsion unit for traveling propulsion cannot be steered is eliminated.

According to a second aspect of the present invention, when the switching operation section of the switching means is provided near the steering wheel, the switching means can be remotely operated, so that operability is improved.

According to a third aspect of the present invention, the switching means includes:
A clamp base is freely rotatably supported on the rotation axis of the rudder steering tiller, and a clamper that is opened and closed by an actuator is attached to the clamp base. The clamper is closed when switching from sailing to cruising. Then, the ladder steering tiller is sandwiched between the ladder steering tiller and the propulsion unit steering tiller in phase with the rudder steering tiller, and when switching from sailing to sailing, the clamper is opened to clamp the rudder steering tiller. By not having such a configuration, the propulsion unit steering tiller can not be linked to the rudder steering tiller.

With this configuration, the switching means
Since only a clamper that is opened and closed by an actuator is attached to the clamp base, the structure is simple and costly, and switching can be performed reliably because the clamper can be forcibly linked.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view of a boat 1, and FIG.
FIG. 3 is a sectional view taken along line A. A stern drive unit 4 for propulsion at the time of running is disposed at the center of the stern plate (transom) 3 of the hull 2 of the boat 1 in the width direction. The stern drive unit 4 is provided outside the stern plate 3. The horizontal shaft 5 supports a tilt-up position U and a tilt-down position D so as to be vertically movable. A steering tiller 11 for steering the stern drive unit 4 is fixed above the stern drive unit 4, and the steering tiller 11 protrudes inward of the stern plate 3.
The tilt-up and tilt-down operations of the stern drive unit 4 can be performed by a cylinder (actuator) that is operated by hydraulic pressure supplied and discharged in conjunction with an operation switch or the like installed near a steering handle (not shown). it can.

An engine (main engine) 6 is mounted at the center in the width direction on the rear side of the hull 2, and a universal joint or a vertical drive shaft (not shown) is mounted on an output shaft 6 a of the engine 6. The screw 4 a of the stern drive unit 4 is connected via a connection system such as a bevel gear, and the screw 4 a is driven by the engine 6. Note that a change in the connection system due to the vertical movement (tilt) of the stern drive unit 4 is absorbed by the universal joint.

Rudders 7L and 7R for steering during sailing are arranged on both sides of the stern plate 3 in the width direction, respectively. As shown in detail in FIG. Upper and lower brackets 8 provided at upper and lower positions outside
Each of the vertical shafts (rotating shafts) 9L and 9R supported by a and 8b is supported to be swingable in the left and right directions L and R, respectively. Steering tillers 10L and 10R for steering the rudder 7L and 7R are fixed above the vertical axes 9L and 9R of the rudder 7L and 7R, respectively. 3 protrudes inward.

The leading ends of the steering tillers 10L, 10R of the rudder 7L, 7R are connected to the connecting pins 15a, 1R.
First tie bar 1 extending in the width direction of boat body 10 by 5b
The first tie bar 13 connects the rudder 7L and the rudder 7L through the steering tillers 10L and 10R.
7R is simultaneously operated in the same direction.

A piston rod 14a of a steering cylinder (actuator) 14 is connected to a connecting pin 15b of the right steering tiller 10R, and the steering cylinder 14 is mounted on the starboard side of the hull 2 on the starboard side. It is swingably supported in a horizontal plane by a vertical pin 14b.

The piston rod 14a of the steering cylinder 14 is moved in and out by hydraulic pressure supplied and discharged in conjunction with the steering of a steering handle (not shown). When the piston rod 14a projects, the first tie bar 13 is moved to the left. By pushing, each steering tiller 10
Each ladder 7L, 7R is rocked (steered) to the right direction R via L, 10R, and at the time of immersion, the first tie bar 13 is pulled to the right so that each ladder 7L, 7R is driven via each steering tiller 10L, 10R. 7L and 7R are rocked (steered) in the left direction L.

As shown in FIG. 3, when the rudder 7R is swung to the right in the maximum direction R, the steering tiller 10R is in a left swing position a shown by a two-dot chain line.
Tiller 10 when the rocker is swung maximum in the left direction L
R is the right swing position b shown by the two-dot chain line.

A clamp base 18 is arranged on the upper surface of the right steering tiller 10R, and the clamp base 18 is attached to the vertical shaft 9 to which the steering tiller 10R is fixed.
The tip of the clamp base 18 and the tip of the steering tiller 11 of the stern drive unit 4 are supported by the upper end of the R so as to be freely rotatable in a horizontal plane. The second tie bar 26 is connected to each other, and the second tie bar 26 allows the steering tiller 11 to be steered in conjunction with the clamp base 18.

A clamp cylinder (actuator) 19 is fixed on the upper surface of the clamp base 18, and the steering tiller 1 is mounted on the lower surface of the clamp base 18.
A pair of L-shaped clampers 20a, 20b capable of sandwiching the middle portion in the length direction of the OR from both sides are provided with pins 21a, 21b.
It is supported to be openable and closable at b.

At the rear end of each of the clampers 20a, 20b, one end of each of the links 22a, 22b is provided with a pin 23a, 2b.
3b and links 22a, 22b.
b are connected to each other by a single pin 24. The pin 24 passes through a long hole 18b formed in a protruding portion 18a extending rearward from the rear portion of the clamp base 18 and has an upper surface. It protrudes to the side. Since the pin 24 is guided by the elongated hole 18b, the clampers 20a and 20b can be smoothly opened and closed via the links 22a and 22b.

A pin 24 protruding from the upper surface of the clamp base 10 is connected to a piston rod 19a of the clamping cylinder 19, and the piston rod 19a
Is moved in and out by hydraulic pressure supplied and discharged in conjunction with an operation switch or the like installed near a steering wheel (not shown).
At the time of protrusion, the respective clampers 20a and 20b are opened (solid line positions) so as not to pinch the steering tiller 10R from both sides via the respective links 22a and 22b, and at the time of immersion, the respective clampers 20a and 20b are respectively connected via the respective links 22a and 22b. 20
a and 20b are closed (positioned by a two-dot chain line) so as to sandwich the steering tiller 10R from both sides. The opening angles of the clampers 20a and 20b are set so as not to hinder the swinging of the steering tiller 10R between the left swing position a and the right swing position b.

The clamp base 18, the clamping cylinder 19, the clampers 20a, 20b, the links 22a,
The switching means is constituted by the second tie bar 22b and the like.

When the steering apparatus is configured as described above, when switching from cruising to sailing, the stern drive unit 4 is tilted up U, and an operation switch or the like near the steering wheel is operated to operate the clamping cylinder 19.
When hydraulic pressure is supplied to the piston rod 19a, the piston rod 19a protrudes and moves through each of the clampers 20 through the links 22a and 22b.
a and 20b are opened so as not to pinch the steering tiller 10R from both sides.

As a result, the steering tiller 10R and the steering tiller 11 of the stern drive unit 4 can be switched to a non-interlocking state, and the hydraulic pressure is applied to the steering cylinder 14 in conjunction with the steering around the steering wheel in one direction. Is supplied, the piston rod 14a protrudes and pushes the first tie bar 13 to the left.
L and 7R are rocked (steered) in the right direction R.
Further, when the hydraulic pressure is discharged from the steering cylinder 14 in conjunction with the steering around the other direction of the steering wheel, the piston rod 14a is immersed and the first tie bar 13 is pulled rightward, so that each of the rudder 7L, 7R is moved. Swing left (steering)
Will be done.

At this time, since the tilted stern drive unit 4 does not interlock with the rudder 7L, 7R, only the rudder 7L, 7R can be steered in conjunction with the steering wheel, so that the rudder 7L, 7R can be steered. Can be done lightly.

On the other hand, when switching from sailing to cruising, the stern drive unit 4 is tilted down D, and the operating switch near the steering handle is operated to discharge the hydraulic pressure from the clamping cylinder 19, whereby the piston rod 19a is retracted. Move, each link 22a, 22b
, The respective clampers 20a and 20b are closed so as to sandwich the steering tiller 10R from both sides.

Thus, the steering tiller 10R and the steering tiller 11 of the stern drive unit 4 can be switched to an interlocked state. That is, the clamp base 18 is attached to the steering tiller 10R by the clampers 20a, 2a.
0b, the steering tiller 11 of the stern drive unit 4 is connected to the clamp base 18 via the second tie bar 26.

Accordingly, when hydraulic pressure is supplied to the steering cylinder 14 in conjunction with the steering in one direction around the steering handle, the piston rod 14a protrudes and the first tie bar 1
3 to the left, each steering tiller 10L,
The rudder 7L, 7R is rocked (steered) in the right direction R via 10R. Further, when the hydraulic pressure is discharged from the steering cylinder 14 in conjunction with the steering around the other direction of the steering handle, the piston rod 14a is immersed and the first tie bar 13 is pulled rightward, so that each of the steering tillers 10L, 10L, Each ladder 7L, 7R moves leftward L via 10R.
Swinging (steering).

At this time, since the clamp base 18 is integrally connected to the steering tiller 10R by the clampers 20a and 20b, it is interlocked with the swing (steering) of the rudder 7L and 7R in the left and right directions L and R. Thus, the stern drive unit 4 is simultaneously steered in the same direction via the second tie bar 26 and the steering tiller 11.

Each clamper 2 of the clamp base 18
When the steering tiller 10R is sandwiched from both sides by closing 0a, 20b, the steering tiller 10R moves between the left swing position a and the right swing position b with the steering of each rudder 7L, 7R. Regardless of the phase within the range, the clamp base 18 freely rotates around the vertical axis 9R so that the clampers 20a and 20b can evenly sandwich the steering tiller 10R from both sides. With the rotation of 18, the stern drive unit 4 is swung through the second tie bar 26 and the steering tiller 11 so as to be in phase with the rudder 7L, 7R.
The ladders 7L and 7R can be linked from the same phase.

Therefore, the ladders 7L and 7R are not damaged by the water pressure when the aircraft is running, and the ladders 7L and 7R are not broken.
Since no cavitation occurs between the L and 7R and the stern drive unit 4, the problem that the rudder 7L and 7R and the stern drive unit 4 cannot be steered is eliminated.

Further, by arranging the operation switch and the like of the clamping cylinder 19 near the steering wheel, the clamping cylinder 19 can be remotely operated, so that the operability is improved.

Further, as means for switching the rudder 7L, 7R and the stern drive unit 4 to interlock and non-interlock, a clamp base 18 is freely rotatably supported on a vertical shaft 9R of a steering tiller 10R. When the clampers 20a and 20b that are opened and closed by the clamping cylinder 19 are attached to the vehicle, and when switching from sailing to cruising, the clampers 20a and 20b are closed and the steering tiller 10R is sandwiched between the steering tiller 10R. When the steering tiller 11 of the stern drive unit 4 is interlocked from the same phase via the clampers 20a and 20b, the clamp base 18, and the second tie bar 26, and when switching from cruising to sailing, the clamper 2 is used.
The rudder steering tiller 10R is opened by opening 0a and 20b.
, So that the steering tiller 11 of the stern drive unit 4 is not interlocked with the steering tiller 10R by sandwiching the clamper 20R. , 20b, so that the structure is simple and the cost is low.
The switching can be performed reliably because it can be forcibly linked at 0a and 20b.

In the above embodiment, the stern drive unit 4 is disposed at the center of the stern plate 3 of the hull 2 and the steering ties 10L, 10R are disposed on both sides thereof. The stern drive unit 4 may be arranged on both sides of the tiller 10.

In the above embodiment, the stern drive unit 4 is arranged, but an outboard motor may be arranged.

Further, in the above embodiment, each ladder 7
The L and 7R are steered by the steering cylinder 14, and the clampers 20a and 20b are opened and closed by the clamping cylinder 19. However, instead of the cylinders 14 and 19, steering or opening and closing is performed by pushing and pulling wires. It may be moved.

[0043]

As is clear from the above description, when the steering apparatus of the present invention is switched from sailing to sailing, the steering rudder for sailing and the propulsion unit for sailing during traveling are switched by the switching means. Since the state is switched to the state, the tilted up propulsion unit for propulsion during traveling does not interlock with the rudder for sailing during sailing, so that only the rudder for steering during sailing can be steered in conjunction with the steering wheel, and the rudder for steering during sailing Steering can be performed lightly.

When switching from sailing to maneuvering, the steering rudder for sailing and the propulsion unit for maneuvering during running are switched from the same phase to the interlocking state by the switching means. Is interlocked with the steering rudder for in-phase from the same phase, so that the steering rudder for sailing and the propulsion unit for propulsion for in-machine driving can be steered in phase with the steering wheel. When switching from sailing to sailing, no matter what phase the steering rudder during sailing is steered, the switching unit will be switched so that the propulsion unit can be linked from the same phase as the steering rudder during sailing. As a result, the rudder for sailing during sailing is not damaged by the water pressure during the run, and no cavitation occurs between the rudder for sailing and the propulsion unit for propulsion during sailing. The problem that the propulsion unit for traveling propulsion cannot be steered is eliminated.

If the switching operation section of the switching means is installed near the steering wheel, the switching means can be remotely operated, so that the operability is improved.

According to a third aspect of the present invention, the switching means supports the clamp base on the rotation shaft of the rudder steering tiller so as to be freely rotatable, and attaches a clamper which is opened and closed by an actuator to the clamp base. When switching from sailing to sailing, the propulsion unit steering tiller is linked to the rudder steering tiller from the same phase by closing the clamper and sandwiching the rudder steering tiller, and when switching from sailing to sailing, the clamper The ladder steering tiller is not pinched by opening the ladder steering tiller, so that the propulsion unit steering tiller is not linked to the rudder steering tiller. Therefore, the structure is simple and cost Together, switching reliably performed because it forced conjunction with the clamper.

[Brief description of the drawings]

FIG. 1 is a plan view of a boat provided with a steering device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged plan view of a steering switching structure.

FIG. 4 is an enlarged side view of a steering switching mechanism.

[Explanation of symbols]

Reference Signs List 1 boat 3 stern plate 4 stern drive unit 7L, 7R rudder 10L, 10R steering tiller (for rudder) 11 steering tiller (for stern drive unit) 13 first tie bar 14 steering cylinder (actuator) 18 clamp base 19 clamp cylinder ( Actuator) 20a, 20b Clamper 22a, 22b Link 26 Second tie bar 18, 19, 20a, 20b, 22a, 22b, 26
Switching means

Claims (3)

[Claims] 1. A boat provided with a rudder for sailing steering and a propulsion unit for propulsion during sailing at a stern portion of a hull, wherein the rudder for sailing steering is steered in conjunction with a steering handle. When the propulsion unit is tilted up to switch from traveling to sailing, the rudder for sailing steering and the propulsion unit for traveling propulsion are switched to the non-interlocked state, and the propulsion unit for traveling propulsion is switched. When the boat is tilted down to switch from sailing to maneuvering, there is provided a switching means for switching the steering rudder for sailing and the propulsion unit for machine propulsion to an interlocked state in phase. apparatus. 2. The switching operation section of the switching means,
The boat steering apparatus according to claim 1, wherein the boat steering apparatus is installed near the steering wheel. 3. The switching means, wherein a clamp base is freely rotatably supported on a rotation shaft of a rudder steering tiller, and a clamper which is opened and closed by an actuator is mounted on the clamp base, and When switching to cruising, the clamper is closed and the ladder steering tiller is sandwiched, so that the propulsion unit steering tiller and the rudder steering tiller are linked in phase, and when switching from cruising to sailing, the clamper is 3. The boat steering system according to claim 1, wherein the propulsion unit steering tiller is not linked to the rudder steering tiller by being opened so as not to pinch the rudder steering tiller.