JPH0113680Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a control handle for a Z-type propulsion device mounted on a ship.

With the Z-type propulsion system, the propulsion system itself rotates horizontally to change the direction of thrust, so the maneuverability of ships equipped with it is extremely superior, and it has come to be widely used on medium-sized ships. ing.

In order to operate the Z-type propulsion device, it is necessary to perform operations such as changing the propulsion direction of the propeller of the Z-type propulsion device, adjusting the thrust of the propeller by controlling the rotation speed of the engine (main engine), and engaging and disengaging the clutch.
These operations are normally performed by operating a control handle in the wheelhouse.

By the way, the conventionally used control handle is
a main shaft that rotates circumferentially around a central axis;
It consists of a rod that is attached to the upper end of this main shaft so that it can rotate freely in the vertical direction, and a wire that has one end attached to the tip of this rod and that moves by moving the rod up and down. The direction of propulsion can be changed by rotating the main shaft in the circumferential direction, and
The rotational speed of the engine is controlled by moving the wire. However, controlling the engine speed by moving the wire described above makes it difficult to determine the vertical position of the rod because the position of the rod changes variously in the horizontal plane depending on steering, and the overall structure becomes complicated. There was an inconvenience.

The present invention was made to solve the above-mentioned disadvantages, and is a simple structure for a Z-type propulsion device that allows accurate and easy remote control of the direction change of the Z-type propulsion device and the rotational speed of the propeller in the wheelhouse. The purpose is to provide a steering wheel.

In order to achieve the above object, the present invention has a hollow column-shaped main shaft that is pivoted almost perpendicularly to the frame so as to be able to rotate freely in the circumferential direction around the central axis, and one end attached to the side of the upper end of this main shaft. A hollow rod protrudes in the radial direction of the main shaft, a bevel gear at one end, and a gripping part at the other end, and the bevel gear is inserted into the main shaft, and the gripping part is inserted into the rod. A rod inner shaft is inserted into the rod so as to be able to rotate freely in the circumferential direction and extend outward, and a bevel gear at the upper end is engaged with the bevel gear of the rod inner shaft, and the center part of the main shaft is rotatably rotatable in the circumferential direction. an inner main shaft inserted into the inner main shaft; a steering control means fixed to the frame and configured to detect circumferential rotation of the main shaft with respect to the frame and output a rotation signal of the Z-type propulsion device; and an output to the inner main shaft. The adjustment shaft is connected to the main shaft and is attached to the main shaft, detects the rotation of the inner main shaft relative to the main shaft in the circumferential direction, and controls the main engine of the Z-type propulsion device via a slip-ring mechanism provided between the main shaft and the frame. The main engine rotation control means outputs a rotation control signal.

The present invention will be explained below with reference to the drawings.

1 and 2 show an embodiment of the control handle according to the present invention, and the reference numeral 1 in the figures indicates a control handle that is rotatable in the circumferential direction about a central axis 2 and is substantially perpendicular to a frame 3 such as a case. It is a hollow columnar main shaft that is pivotally supported by. This main shaft 1 has a hollow rod 4
is fixed at one end to the side of the upper end of the main shaft 1, protrudes in the radial direction of the main shaft 1, and is provided substantially horizontally. A hollow portion 4a within the rod 4 communicates with a hollow portion 1a within the main shaft 1.

Further, a rod inner shaft 7 is provided passing through the hollow portion 4a of the rod 4, and one end thereof reaches the main shaft hollow portion 1a. A bevel gear 8 is attached to one end of the rod inner shaft 7, and a grip portion 5 for rotating the rod inner shaft 7 in the circumferential direction about the horizontal axis 6 is attached to the other end. Further, the bevel gear 8 meshes with a bevel gear 10 attached to the upper end of the inner main shaft 9, which is provided perpendicularly to the center of the main shaft hollow portion 1a.

A gear 11 that rotates in the horizontal direction is attached to the intermediate portion of the main shaft 1. This gear 11
are engaged with gears 12a and 13a that operate synchro transmitters (steering control means) 12 and 13 for steering control provided on the left and right sides of the main shaft 1. In addition,
The synchronized oscillators 12 and 13 are fixed to the frame 3.

A clutch micro switch 14 is attached to the lower outer side of the main shaft 1 to turn on and off a clutch (not shown) of the propeller 21 (FIG. 3). Furthermore, a potentiometer (main engine rotation control means) 15 for controlling the rotation of the main engine is attached to the lower end. Furthermore, a slip ring 16 is provided on the outer side of the lower part to be wound around the main shaft 1, so that the output of the potentiometer 15, etc. can be taken out to the outside via a brush 17 provided on the frame 3. Note that the slip ring 16 and the brush 17 constitute a slip ring mechanism.

Further, a micro-switch cam 14a is attached to the inner main shaft 9 to turn on and off the clutch micro-switch 14, and a cam 14a for controlling the rotation of the main engine (not shown) of the Z-type propulsion device is attached to the lower end. An output adjustment shaft 18 of a potentiometer 15 is attached. Above potentiometer 15
The micro switch 14 and the micro switch 14 are configured to be interlocked so that the micro switch 14 is turned off when the output reaches the lowest level.

The potentiometer 15 detects the circumferential rotation of the inner main shaft 9 relative to the main shaft 1, and is connected to a slip ring 16 and a brush electrically connected to the potentiometer 15 by a lead wire (not shown). 1
7, that is, a control signal for the rotational speed of the main engine of the Z-type propulsion device is outputted via the slip-ring mechanism.

Further, reference numeral 19 is a scale indicating the rotation angle of the main shaft 1, and 20 is a scale indicating the rotation angle of the grip portion.

Next, the operation of the operating handle according to the present invention constructed as above will be explained.

First, when changing the direction of travel of the ship, the user grips the grip 5 to move the rod 4 in the horizontal direction and rotate the main shaft 1 in the circumferential direction. As the main shaft 1 rotates, the gears 12a and 13a rotate via the gear 11, the synchro transmitters 12 and 13 operate, and a command signal is issued. This signal causes the Z-type propulsion device to rotate by the same angle as the rotation angle of the main shaft 1. For example, when the direction of the rod 4 is changed as shown in Fig. 3a and Fig. 4a, the main shaft 1 rotates by the same angle as the displacement angle of the rod 4, and the Z-shaped propulsion device The propeller 21 rotates. i.e. propeller 2
The direction of 1 is the rod 4 as shown in Figure 3b and Figure 4b.
Rotate in accordance with the direction of. Along with this, ship 22
moves in the direction indicated by the arrow in FIGS. 3c and 4c. In the above example, two propellers 2 are installed in parallel.
1 and 21 are rotated in the same direction, but since the directions can be changed independently, the ship 22 can be operated freely.

Further, when the grip portion 5 is twisted and rotated around its axis, the inner main shaft 9 rotates via the bevel gears 8 and 10. By this rotation, the clutch ON/OFF micro switch 14 is operated by the micro switch cam 14a. In addition, the shaft 18 of the main engine rotation control potentiometer 15 rotates relative to the main shaft 1, and the signal generated at this time is outputted via the slip ring mechanism and controls the rotational speed of the main engine of the Z-type propulsion device. The rotational speed of the propeller 21 is controlled to change, thereby adjusting the speed of the ship.

In the above, the potentiometer 15 is the main shaft 1
Since the rotation of the gripping part 5 around the axis is directly detected as a relative rotation with the main shaft 1, even if the main shaft 1 rotates for steering, the gripping part is attached to the The speed of the main engine can be controlled by rotation around the axis 5, and the speed of the ship can be arbitrarily adjusted in any steering direction. Therefore, as in the case where the potentiometer 15 is provided on the frame 3 or the like and its shaft 18 is connected to the inner main shaft 9 directly or via a transmission mechanism, the amount of operation for steering due to the rotation of the main shaft 1 is the same as that of the main engine. The problem of affecting the amount of speed control does not occur. When the main shaft 1 is rotated in the circumferential direction by gripping the grip part 5, the two bevel gears 8 and 10 are engaged with each other and the inner main shaft 9 rotates in the circumferential direction together with the main shaft 1. The micro switch 14 and the main engine rotation control potentiometer 15 do not operate.

Note that by providing two synchro transmitters and two main engine rotation control potentiometers, it is also possible to operate the left and right propellers simultaneously by operating one of the control handles. However, if you want to operate the left and right propellers in different directions, you will need left and right steering handles.

As described above, the operating handle according to the present invention includes a hollow columnar main shaft that is pivoted almost perpendicularly to the frame so as to be rotatable in the circumferential direction about the central axis, and one end attached to the side of the upper end of the main shaft. A hollow rod protrudes in the radial direction of the main shaft, a bevel gear at one end, and a gripping part at the other end, and the bevel gear is inserted into the main shaft, and the gripping part is inserted into the rod. A rod inner shaft is inserted into the rod so as to be able to rotate freely in the circumferential direction and extend outward, and a bevel gear at the upper end is engaged with the bevel gear of the rod inner shaft, and the center part of the main shaft is rotatably rotatable in the circumferential direction. an inner main shaft inserted into the inner main shaft, a steering control means fixed to the frame and configured to detect circumferential rotation of the main shaft with respect to the frame and output a rotation signal of the Z-type propulsion device; and an output to the inner main shaft. The adjustment shaft is connected to the main shaft and is attached to the main shaft, detects the rotation of the inner main shaft relative to the main shaft in the circumferential direction, and controls the main engine of the Z-type propulsion device via a slip-ring mechanism provided between the main shaft and the frame. Since the main engine rotation control means is configured to output a rotation control signal, by holding the gripping part and rotating the lever horizontally, and rotating the main shaft in the circumferential direction around its central axis, By operating the steering control means, the Z-type propulsion device can be rotated from 0 to 360 degrees or more, and the direction of propulsion can be freely changed.

Further, by rotating the inner shaft of the rod in the circumferential direction relative to the rod using the gripping portion and rotating the inner main shaft in the circumferential direction relative to the main shaft, the main engine rotation control means is actuated to control the rotation of the main engine. Because it is configured as
Unlike conventional systems in which the rotation of the main engine is controlled by pulling a wire by moving the rod up and down, the rotational speed of the main engine can be controlled stably and accurately. Therefore, in combination with the above points, the steering and propulsion characteristics provided in the Z-type propulsion device can be fully exhibited.

Furthermore, the main engine rotation control means is attached to the main shaft by connecting the output adjustment shaft to the inner main shaft, and the inner main shaft is inserted into the center of the main shaft by meshing the bevel gear with the bevel gear of the inner rod shaft. When the main shaft rotates about the central axis, the inner main shaft also rotates in the same direction and angle as the main shaft, so that the output adjustment shaft of the main engine rotation control means is connected to the main engine rotation control means body during steering operation. It does not rotate against the
Therefore, it is possible to accurately control the steering and the rotational speed of the main engine.

In addition, the inner rod shaft and inner main shaft are housed within the rod and main shaft, respectively, and the overall structure is simplified, which has the advantage of fewer failures and ease of operation.

[Brief explanation of the drawing]

1 and 2 show a control handle according to the present invention. FIG. 1 is a cross-sectional view of the control handle, FIG. 2 is a view taken along the - line in FIG. 1, and FIG. , b, c, Figure 4 a, b, and c show the relationship between the rod operation and the ship's traveling direction, where a is the rod direction, b is the propeller direction, and c is the ship's traveling direction. be. 1... Main shaft, 2... Center axis line, 3... Frame, 4... Rod, 5... Gripping part, 7... Rod inner shaft, 8
...Bevel gear, 9...Inner main shaft, 10...Bevel gear, 1
2... Synchro transmitter (steering control means), 15...
... Main engine rotation control potentiometer (main engine rotation control means), 16... Slip ring (slip ring mechanism), 17... Brush (slip ring mechanism), 18... Output adjustment shaft.

Claims (1)

[Scope of utility model registration request] A hollow columnar main shaft 1 is pivoted almost perpendicularly to a frame 3 so as to be rotatable in the circumferential direction about a central axis 2.
and a hollow rod 4 having one end attached to the side of the upper end of the main shaft 1 and protruding in the radial direction of the main shaft 1;
A bevel gear 8 is provided at one end, and a gripping portion 5 is provided at the other end, and the bevel gear 8 is inserted into the main shaft 1, and the gripping portion 5 is placed outside the rod 4 to rotate in the circumferential direction. Rod inner shaft 7 freely inserted into the rod 4
and the bevel gear 10 at the upper end is connected to the bevel gear 8 of the rod inner shaft 7.
An inner main shaft 9 is inserted into the center of the main shaft 1 so as to be engaged with the main shaft 1 and rotatable in the circumferential direction, and an inner main shaft 9 is fixed to the frame 3 and detects rotation of the main shaft 1 in the circumferential direction with respect to the frame 3. A steering control means 12 that outputs a rotation signal of the Z-type propulsion device, and an output adjustment shaft 18 connected to the inner main shaft 9 are attached to the main shaft 1 and control the circumferential direction of the inner main shaft 9 relative to the main shaft 1. The main engine rotation control means 15 detects the rotation and outputs a rotation control signal for the main engine of the Z-type propulsion device via the slip ring mechanisms 16 and 17 provided between the main shaft 1 and the frame 3. Z to be
Control handle for type propulsion device.