JPH023999Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rectifying fin device provided at the stern of a ship, and more particularly to a rectifying fin device with a reinforcing material for reinforcing the rectifying fin.

In general, in the stern rectifying fin device, as shown in FIGS. 1 to 3, a number of shafts 7a extend from the upper part of the stern propeller 5 toward the stern along the hull outer plate 2.
7f are attached, and each of the shafts 7a to 7f is rotatably provided with a large number of stern rectifying fins 6a to 6f. The flow regulating fins 6a to 6f are formed substantially in a line in the bow direction, and are provided on both sides of the hull, as shown in FIG.

The shafts 7a to 7f are rotatably driven within the hull, and this rotation moves the rectifying fins 6a to 6f from the rectifying position (see Fig. 2) to the storage position. can be done.

The rotational drive is performed by shafts 7a to 7f as shown in FIG.
The bevel gears 8a to 8f attached to the motor 10
This is done by rotating bevel gears 11a to 11f attached to shafts 9a to 9f of a to 10f.

In addition, the code 1 in Fig. 1 is a stern frame,
3 indicates the shew piece, and 4 indicates the rudder.

When the ship is operated in a predetermined loaded state, the rectifying fins 6a to 6f are projected to the rectifying position to produce a rectifying effect, and when the ship is operated in other loaded states, the rectifying fins 6a to 6f are is designed so as to fit along the hull outer plate 2.

By the way, the conventional stern straightening fin device has a drawback that the straightening fins 6a to 6f vibrate due to the water flow in the stern acting on the straightening fins 6a to 6f, and the generation of this vibration is caused by the hull vibration. There is a problem in that it causes an increase in

SUMMARY OF THE INVENTION The present invention aims to solve these problems, and aims to provide a stern rectifying fin device with a reinforcing material that can prevent the vibration of the rectifying fin and reduce hull vibration.

For this reason, the stern straightening fin device with reinforcing material of the present invention is provided with a stern straightening fin that is rotatable by a shaft attached along the hull outer plate from the upper part of the stern propeller toward the bow. In order to suppress vibration, a reinforcing member having one end fixed to the rectifying fin and having an arc shape centered on the axis is disposed so as to penetrate through the hull outer plate. It is characterized in that a reinforcing material support member is fixed to the other end and rotatably supported by the shaft on the inside of the ship.

The stern rectifying fin device with reinforcing material as an embodiment of the present invention will be explained below with reference to the drawings. FIG. The diagram is in Figure 5-
FIGS. 7 and 8 are cross-sectional views taken along the - arrow in FIG. 4 in the rectifying position and the storage position of the rectifying fin.

In addition, in FIGS. 4 to 8, the same reference numerals as in FIGS. 1 to 3 indicate substantially the same parts.

As shown in FIGS. 4 to 6, the rectifying fins 6a to 6
Reinforcing members 12a to 12f, each having one end fixed to the rectifying fins 6a to 6f and formed in an arc shape centered on the shafts 7a to 7f, are inserted into the through holes 16a to 16f of the hull outer plate 2 in order to suppress the vibrations of the f. 16f is inserted therethrough. These reinforcing materials 12a to 12f
Three rectifying fins are provided in each of the rectifying fins 6a to 6f, and each of the rectifying fins is inserted through the through holes 16a to 16f, respectively. This through hole 1
6a-16f, as shown in FIGS. 6 and 7, sealing gaskets 17a-17f are provided to keep the reinforcing members 12a-12f slidable and watertight.

The other ends of the reinforcing materials 12a to 12f are fixed to reinforcing material supporting members 13a to 13f on the inside of the ship, and these reinforcing material supporting members 13a to 13f are provided corresponding to each of the rectifying fins 6a to 6f.

The reinforcing material support members 13a to 13f are integrally supported by the shafts 7a to 7f on the inside of the ship, and are rotatable as the shafts 7a to 7f rotate.

Note that the reinforcing material supporting members 13a to 13f are provided with bolt through holes 13a', and as shown in FIG. It is fixedly supported by bolts 14a so as to be in close contact with the outer plate surface 2a. With this support, the reinforcing members 12a to 12
f is firmly fixed to the hull outer plate 2.

Further, as shown in FIG. 8, the rectifying fins 6a to
At the storage position 6f, the reinforcement support member 13a
-13f are fixedly supported by bolts 14a so as to be in close contact with the inboard bracket 15a. Due to this support, the reinforcing members 12a to 12f are accommodated within the hull outer panel 2, and the rectifying fins 6a to 6f are stored along the hull outer panel 2.

In order to ensure the watertightness of the shafts 7a to 7f inside and outside the hull, the shafts 7a to 7f are arranged as shown in FIG. In this case, a sealing gasket may be provided around the shaft.

In addition, each member 12a, 13a shown in FIGS. 7 and 8
etc. may be provided in a compartment (not shown) to watertightly separate this compartment from the inside of the hull.

As described in detail above, according to the stern rectifying fin device with reinforcing material of the present invention, one end of the fin is fixed to the rectifying fin and the fin is arranged in a circular arc shape centered on the above-mentioned axis, in order to suppress the vibration of the rectifying fin. The formed reinforcing material is disposed so as to penetrate the hull skin,
With a simple structure in which a reinforcing material support member is fixed to the other end of the reinforcing material and rotatably supported by the shaft on the inside of the ship, it is possible to sufficiently prevent vibrations when the rectifying fin is used. This has the advantage of significantly reducing hull vibration.

[Brief explanation of the drawing]

Figures 1 to 3 show a conventional stern rectifying fin device. Figure 1 is a side view of the stern, Figure 2 is a sectional view taken along the - arrow in Figure 1, and Figure 3 is a cross-sectional view of Figure 2. - An enlarged view in the direction of the arrows, and Figures 4 to 8 show a stern rectifying fin device with a reinforcing material as an embodiment of the present invention. Figure 4 is a side view of the vicinity of the stern, and Figure 5 is a Figure 4 is a sectional view taken along the - arrow, and Figure 6 is the 5th section.
Figures 7 and 8 are cross-sectional views taken in the direction - arrow of Fig. 4 at the rectifying position and the control position of the rectifying fin. 1... Stern frame, 2... Hull outer plate, 2
a...Hull outer plate surface, 3...Sew piece, 4...
Rudder, 5...Propeller, 6a-6f...Stern rectifying fin, 7a-7f...Shaft, 8a-8f...Bevel gear, 9a-9f...Shaft, 10a-10f...
...Motor, 11a-11f...Bevel gear, 12a
~12f...Reinforcement material, 13a-13f...Reinforcement support member, 13a'...Through hole for bolt, 14a...
...Bolt, 15a...Bracket, 16a-16
f...Through hole, 17a-17f...Sealing gasket.

Claims (1)

[Scope of utility model registration request] The stern rectifier fin is rotatably provided by a shaft attached along the hull outer plate from the upper part of the stern propeller toward the bow, and one end of the stern rectifier fin is fixed to the rectifier fin in order to suppress the vibration of the rectifier fin. and a reinforcing member formed in an arc shape centered on the axis is disposed so as to penetrate the hull outer plate,
A stern rectifying fin device with a reinforcing material, characterized in that a reinforcing material supporting member is fixed to the other end of the reinforcing material and rotatably supported by the shaft on the inside of the ship.