JPH1053195A - Steering device for small ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform accurate operation during low speed running. SOLUTION: In a small ship provided with a propeller and a steering machine and provided with a throttle lever and a shift lever for an engine for a propeller, a steering station 1 for ordinary sunning and a steering station 5 for low speed sailing are provided. The steering station 5 for low speed sailing is provided with an operation lever 50 for a low speed to control a transmission device 20 to perform shift change and transmit rotation of an engine 2 to a propeller 21. Through operation of the operation lever 50 for a low speed, a shift change amount of the transmission device 20 is regulated. The operation lever 50 for a low speed performs shift operation to shift forward and revers of a ship and regulation operation to regulate the degree of a shift change, through which shift change of rotation of the engine is effected and rotation of the engine is transmitted to the propeller, through a single operation lever.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boat maneuvering device provided with a speed adjusting means in a low speed state.

[0002]

2. Description of the Related Art Conventionally, an operating device for a small boat has a throttle lever and a shift lever for an engine, and the boat is driven by these operations. Depending on. When the throttle lever for normal driving is finely adjusted and operated as described above, accurate operation cannot be performed. Therefore, a separate slow speed controller is provided, and when the vehicle enters a low speed range, the speed is controlled by operating the slow speed controller. It has also been proposed to perform the adjustment, and in such a ship, a shift lever for normal running arranged in parallel with a throttle lever for normal running is used even at low speed running.

[0003]

In general, a large vessel uses a tugboat or other vessel to make a precise course at low speeds, while a small vessel uses a ship maneuvering device of its own vessel to travel at low speed. In many cases, accurate traveling on the route is required. For example, in the case of a seaweed cultivation work boat, traveling back and forth to the seaweed cultivation site is performed at a normal high speed, and when the seaweed is harvested, a low speed and accurate course is required. In addition, ships other than those described above are required to travel accurately at low speeds when berthing.

However, in the conventional boat maneuvering device, it is difficult to accurately adjust the speed because the speed is adjusted by fine adjustment of the operating lever for normal running at low speed. Therefore, it is conceivable to separately install a low-speed controller and adjust the speed by operating the low-speed controller in situations where low-speed traveling is required. If the low-speed controller is provided at a distance from the throttle lever for normal driving because it is performed by the lever, the shift operation during low-speed driving is troublesome, and the low-speed controller is provided near the throttle lever for normal driving. In such a case, there is a problem that many operators are concentrated in one place and an operation error is likely to occur.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a boat maneuvering device for a small boat capable of easily and accurately performing an operation at a low speed.

[0006]

A first aspect of the present invention is a small boat equipped with a propulsion unit and a steering unit, and having a speed adjustment lever and a shift lever for adjusting the speed of the propulsion unit. A boat maneuvering station having a lever and a shift lever and a boat maneuvering station having a speed adjusting lever and a shift lever for low-speed traveling are provided, and switching means for switching so that only one of these stations can be operated is provided. Is what it is. The speed adjustment lever includes a throttle lever that adjusts the output of the engine, and an operation lever that adjusts the degree of shift that transmits the rotation of the engine to the propulsion device by shifting it. The speed adjusting lever and the shift lever may be constituted by a single operation lever, or may be constituted by separate operation levers.

According to the first aspect of the present invention, in a state where accurate traveling at low speed is required, the shift operation and the speed adjustment operation of the propulsion device are performed at a dedicated station. It can be done easily and reliably.

According to a second aspect of the present invention, the speed adjusting lever of the low-speed traveling boat maneuvering station is constituted by a low-speed operating lever for controlling a transmission for shifting and transmitting the rotation of the engine to the propulsion unit. The shift amount of the transmission is adjusted by operating the operating lever.

According to the second aspect of the present invention, the speed adjustment in the low speed state can be performed only by controlling the transmission while keeping the rotation of the engine constant, so that the speed can be accurately adjusted. .

According to a third aspect of the present invention, the low-speed operation lever simply includes a shift operation for switching forward and backward movement of the ship and an adjustment operation for increasing or decreasing the degree of shift for transmitting the rotation of the engine to the propulsion device by shifting the rotation. The operation is performed by one operation lever.

According to the third aspect of the present invention, since the shift and the speed adjustment are performed by a single operation lever, there is an advantage that the configuration of the apparatus is simplified and the operation is easy.

According to a fourth aspect of the present invention, there is provided a boat maneuvering device for a small boat provided with a low-speed operation lever for controlling a transmission for shifting the rotation of the engine to a propulsion device and transmitting the transmission. A single operation lever is used to perform a shift operation for switching between forward and backward and an adjustment operation for increasing or decreasing the degree of transmission for shifting the rotation of the engine to the propulsion device.

According to the fourth aspect of the present invention, since the shift and the speed adjustment at the time of low speed are performed by a single operation lever, there is an advantage that the configuration of the apparatus is simplified and the operation is easy.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, in a small vessel, a shift lever 11 and a speed adjusting lever for adjusting the speed of a propulsion device by adjusting the output of an engine are provided on a boat maneuvering station 1 for normal running. A barrel throttle lever 12 and a select switch (switching means) 13 are provided, and a push-pull cable 10 for transmitting the operation force of the throttle lever 12 is connected to the propulsion engine 2. A propeller 21 as a propulsion device is connected to the engine 2 via a transmission 20. The shift lever 11 is provided with a shift sensor 14 for detecting the operation angle. The shift sensor 14 is connected to the control unit 3 via a lead 15. The select switch 13 is also connected to the control unit 3 via the lead wire 15 so that electric signals from these are sent to the control unit 3. The signal from the control unit 3 is
To the shift actuator 4 via
This shift actuator 4 is a push-pull cable 4
The transmission 20 is connected to the transmission 20 via a transmission 0, and the shift actuator 4 switches the clutch of the transmission 20 to set the vehicle in the forward or reverse state, thereby transmitting the rotation of the engine 2 to the propeller 21. Control unit 3 above
Are connected to a power source and a ground (not shown) by a lead wire 32.

A low speed operation lever 50 as a speed adjusting lever for adjusting the speed of the propeller 21 and a select switch (switching means) 5 are provided at the low speed traveling ship maneuvering station 5.
The low-speed operation lever 50 has a shift sensor 52 for detecting the operation angle and an adjustment degree sensor 5.
3 are provided. The adjustment degree sensor 53 is connected to a low-speed controller 6 via a lead wire 55, and the low-speed controller 6 is connected to a transmission 20 of the engine via a push-pull cable 60, thereby controlling a clutch plate in the transmission 20. By changing the operating pressure, the amount by which the clutch plate slips is changed, and the rotation of the engine 2 is transmitted to the propeller 21 by shifting (decelerating). The shift sensor 52 and the select switch 51 are connected to the control unit 3 via a lead wire 54, and the transmission 20 is transmitted from the control unit 3 via the shift actuator 4 as described above.
The transmission of the rotation of the engine 2 is transmitted to the propeller 21 by changing the operating pressure on the clutch plate.

When the low-speed operation lever 50 is swung in one direction from the neutral position N and tilted to the F position as shown in FIG. 2, a forward shift is performed to advance the boat, and further from this position. Move to tilt to P position, then F
The rotation of the engine 2 is changed by changing the operating pressure of the transmission 20 against the clutch plate in proportion to the tilt angle from the propeller 2.
The speed is changed to 1 and transmitted. Further, when the operation lever 50 is swung in the other direction from the neutral position N and tilted to the R position, a reverse shift that causes the ship to move backward is performed,
When the rocker is further swung from that position and tilted to the Q position, the operating pressure on the clutch plate of the transmission 20 is changed in proportion to the tilt angle from R, so that the rotation of the engine 2 is transmitted to the propeller 21 by shifting. I have to. When the select switch 13 is depressed, only the boat maneuvering station 1 for normal traveling can be operated, and when the button of the select switch 51 is depressed, only the boat maneuvering station 5 for low speed traveling can be operated. Is configured.

In the above configuration, when performing normal high-speed traveling, the driver operates the operation station 1 for normal traveling.
First, the operation at this station is enabled by pressing the select switch 13, and the shift operation and the throttle adjustment operation are performed by grasping the shift lever 11 and the throttle lever 12. That is, when the shift lever 11 is swung, the shift sensor 14 detects the swing angle, sends a predetermined signal to the shift actuator 4 through the control unit 3 and operates the push-pull cable 40 to thereby operate the clutch of the transmission 20. To set forward or reverse. By swinging the throttle lever 12, an operation amount corresponding to the swing amount is transmitted to the engine 2 via the push-pull cable 10, and the opening degree of the throttle is set so that the boat travels at a predetermined speed. Become.

When it is necessary for the ship to run at low speed (for example, when the ship arrives at the aquaculture work place in a seaweed culture work ship), the driver presses the select switch 51 at the low-speed running station 5. Operable only at this station. As a result, the operation at the station 1 becomes impossible, but the engine 2 continues to rotate at the rotation speed set at the time of the traveling, and the low-speed operation lever 50 is operated in this state. When the low-speed operation lever 50 is swung in one direction from the neutral position N shown in FIG. 2 and tilted to the F position, a shift is made to the forward side to advance the ship, and further from that position to the P position direction. When tilted to the P position by swinging, the operating pressure on the clutch plate of the transmission 20 is changed in proportion to the tilt angle from F, and the rotation of the engine 2 is transmitted to the propeller 21 at a reduced speed. Further, when the operation lever 50 is swung in the other direction from the neutral position N and tilted to the R position, a shift to the reverse side is performed in which the ship moves backward, and further tilting from the position to the Q position direction,
The working pressure on the clutch plate of the transmission 20 is changed in proportion to the tilt angle from R, and the rotation of the engine 2 is transmitted to the propeller 21 at a reduced speed. Even when the low-speed operation lever 50 is tilted to the P position or the Q position, the speed is set so that, for example, only a boat speed suitable for low-speed work of the ship is obtained.

As described above, the transmission of the engine 2 through the transmission 20 is performed.
Is transmitted to the propeller 21 at a reduced speed,
The propeller 21 can be rotated at a very low speed lower than the rotation of the propeller 21 when the rotation of the engine 2 is minimized in a marine vessel without the transmission 20. In addition, when the shift and the speed adjustment are performed by a single operation lever, there is an advantage that the configuration of the device is simplified and the operation is facilitated.

As described above, in this apparatus, when the vehicle needs to travel on the accurate course at low speed, the boat is steered at the dedicated station, so that the boat can be steered reliably. Further, the speed adjustment in the low speed state can be performed only by controlling the transmission while keeping the rotation of the engine constant, so that the speed can be accurately adjusted.

[0021]

According to the first aspect of the present invention, the shift operation and the speed adjustment operation of the propulsion device are performed at the dedicated station when the traveling at the low speed traveling on the accurate course is required. Maneuvering can be performed easily and reliably.

According to the second aspect of the present invention, the speed adjustment in the low speed state can be performed only by controlling the transmission while keeping the rotation of the engine constant, so that the speed can be accurately adjusted. .

According to the third aspect of the present invention, since the shift and the speed adjustment are performed by a single operation lever, there is an advantage that the configuration of the apparatus is simplified and the operation is easy.

According to the fourth aspect of the present invention, since the shift and the speed adjustment at the time of low speed are performed by a single operation lever, there is an advantage that the configuration of the apparatus is simplified and the operation is easy.

[Brief description of the drawings]

FIG. 1 is a system explanatory diagram of an apparatus showing an embodiment of the present invention.

FIG. 2 is an operation explanatory view of an operation lever of a low-speed traveling ship maneuvering station.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ship operation station for normal driving 2 Engine 3 Control unit 4 Shift actuator 5 Ship operation station for low speed driving 6 Fine speed controller 11 Shift lever 12 Throttle lever (speed adjustment lever) 13 Select switch 20 Transmission 21 Propeller (propulsion device) 50 Low speed Lever (speed adjustment lever) for the camera 51 Select switch

Claims (4)

[Claims] 1. A small boat having a propulsion unit and a steering unit, and having a speed adjustment lever and a shift lever for adjusting the speed of the propulsion unit. A boat maneuvering station having a speed adjustment lever and a shift lever for use in a boat, and a switching means for switching so that only one of the two stations can be operated. apparatus. 2. The speed control lever of the low-speed traveling boat maneuvering station is constituted by a low-speed control lever for controlling a transmission for shifting the rotation of the engine to the propulsion device and transmitting the transmission. 2. The boat maneuvering device for a small boat according to claim 1, wherein the speed change amount of the transmission is adjusted by the control device. 3. The low-speed operation lever uses a single operation lever to perform a shift operation for switching forward / backward movement of the ship and an adjustment operation for changing the degree of shift transmitted by shifting the rotation of the engine to the propulsion device. 3. The boat maneuvering device for a small boat according to claim 1, wherein the boat maneuvering device is configured to perform the operation. 4. A boat maneuvering device for a small boat equipped with a low-speed operation lever for controlling a transmission for changing and transmitting the rotation of an engine to a propulsion unit, wherein the low-speed operation lever shifts the ship forward and backward. A boat maneuvering device for a small boat, wherein a single operation lever is configured to perform an operation and an adjustment operation to increase or decrease a degree of a shift that transmits the rotation of the engine to the propulsion device.