JPS59199396A - Rudder - Google Patents

Abstract

PURPOSE:To ensure the operation of a flap even when abrasion occurs on a rotary pin for fitting the flap by a construction wherein the flap provided at the tail end of a main rudder is driven by a mechanism comprising a pair of links and operating with the rotation of the main rudder. CONSTITUTION:Assuming that a main rudder 1 and a flap 2 are positioned initially on a stem-stern plane X-X passing the center line of a rudder shaft 3 and that the rudder shaft 3 is rotated by an angle alpha at steering, a rotary pin 11 of the flap 2 is positioned on a vertical plane X1-X1 which passes the center line O-O of the rudder shaft 3 and forms an angle alpha with respect to the stem-stern line X-X. Simultaneously, the teeth of a pinion 8 roll in mesh with the teeth 7 of a guide member 5, and thereby the pinion 8 is rotated from a position indicated by a solid line to a position shown by a dotted chain line, so that the flap 2 is rotated by the same amount as the pinion around the rotary pin 11. In this way, the trembling of the flap 2 due to the abrasion of the rotary pin 11 can be absorbed by a link mechanism 4 which is provided between the pinion 8 and the flap 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rudder, and more particularly to a rudder with a flap that is rotatably attached to a ship's hull via a rudder shaft.

The inventor of the present application previously developed a rudder equipped with a flap having a drive mechanism that has an extremely simple structure and can be manufactured at low cost, and published the rudder in Japanese Patent Application No. 57-46208. This rudder's flag drive mechanism is a fixed fixed gear with a partial spur gear near the tail end of the main rudder that is held at a higher level than the upper end of the main rudder by being attached to a support hanging from the hull adjacent to the rudder shaft. It is composed of a guide member and a sector fixed to the upper end of the flag and provided with teeth that mesh with the guide member, and has a minimum number of components, and furthermore, each component is extremely simple and compact. It is clear that the construction represents a significant improvement over previous rudders of this type in terms of reduced manufacturing and maintenance costs.

However, in the case of the rudder published above, since the movable pin attached to the tail end of the flap main rudder will inevitably wear out due to long-term use, the rudder @IIK concentric fixed guide There is a risk of backlash occurring in the meshing area between the partial spur gear on the member and the tooth of the sector attached to the flap. In addition, large M' pins require a pair of intermediate pinions between the fixed guide member and the sector on the flap, and the structure tends to be somewhat complicated. The present invention seeks to solve and improve upon the problems of this type occurring in the females disclosed in the above-mentioned application.

The purpose of the present invention is to attach the flap to the tail end of the main rudder [9, which causes wear on the rotating pin f and the flap is relative to the main rudder, Vci3I].
To provide a rudder equipped with a drive mechanism that reliably operates a flap in a desired manner without causing backlash in the meshing of gears even when the rudder is shaken.

According to the present invention, the rudder is provided with a main rudder rotatably attached to the hull, and a flap that is rotatably attached to the tail end of the main rudder and is mounted on a rotary pin parallel to the rudder VC. , a horizontal section concentric with the rudder shaft is carved in the lower end of the support material that hangs from the hull adjacent to the rudder shaft, and extends toward the stern end of the main rudder at a level higher than the upper end of the main rudder. a guide member having teeth of a partial spur gear; a pinion rotatably attached to the upper end of the main rudder adjacent to the tail end of the main rudder and meshing with the partial spur gear and rotating in a horizontal plane; and a pinion attached to the pinion. When the rudder angle is zero, a drive rod extends an equal distance from the rotation axis of the pinion toward both sides of the main rudder, and a drive rod that is parallel to the drive rod is located at a position adjacent to the upper end of the flap at 1CrH in the inside of the rotating bin. a driven rod that is attached to the main rudder and has the same dimensions as the driven rod; a driving rod that is located on the same side with respect to the main rudder; and a pair of driving links that are rotatably connected at both ends to the respective ends of the driving rod. A special feature of the rudder is that it is equipped with a flap drive mechanism consisting of a link mechanism having the following features.

Now, an embodiment of the apparatus of the present invention will be explained below with reference to the accompanying drawings.

Referring to FIG. 1, the main fd'e part 1 is rotatably attached to the hull 20 via a female 1llll3, and the main rudder part 1 is rotatably attached to the tail end of the main rudder part by a rotary pin 11. A rudder 10 of the invention is shown comprising a folded flap section 2.

In the illustrated example, the main rudder 1 is suspended from the hull 20 by a rudder shaft 3. The flap 2 is attached to the main rudder 1 by a pivot pin 11 provided at its upper end vc, but the number of bins can be increased as appropriate. The centerline of the pivot pin 11 is placed parallel to the centerline of the rudder shaft 3. As shown in Figure 2, the main rudder 1 and the flap 2 are manufactured in such a shape that their cross sections cooperate to form one flight wing cross section.

The upper end of the flap 2 is placed at a higher level than the upper end of the main rudder 1 by a predetermined distance. A fixed support 6 consisting of a tube concentric with the rudder axle 3 depends from the hull 20 outside the rudder axle 3. A horizontal guide member 5 is placed above the main rudder 1 at a predetermined distance from the upper end thereof, and is fixed to the lower end of the support member 6.

As shown in Figures 2 and 2, the guide member 5 has partial spur gear teeth 7 concentric with the rudder shaft 3Vc carved in a fan-shaped portion extending toward the tail end of the main rudder 1 on the left side.

A pinion 8 that meshes with the partial spur gear 7 of the guide member 5 is rotatably attached to the upper end of the main rudder 1 around a rotating shaft 9K. A parallelogram-shaped link 1 which transmits rotational motion of the pinion 8 to the flap 2 is connected to the pinion 8 and the flap 2.
He has been visited twice. The link mechanism 4 is a drive rod 1 that is attached to a pinion 8Kll and extends an equal distance from the pinion rotation 9 to both sides of the main rudder 1 when the steering angle is zero.
2. The flap 2 is mounted on the center line of the pivot pin 11 and adjacent to the upper end of the ℃ flap, parallel to the driving rod 13, and having the same dimensions as the driven rod 13.
It is equipped with Both ends of the driven rod 13 are placed equidistant from the center of the pivot pin 11.

On the spear 2 figure. The drive rod 1 is located above the center plane xX of the main rudder 1 and the flaps 20 in the longitudinal or longitudinal direction.
2 and the driven rod 13 have rotatable joints 15, respectively.
A, 15Cvc is connected to the end of the longitudinal drive link 14A. Similarly, the lower side t of the center plane XX in the front-rear direction
The ends of the driving rod 12 and the driven rod 13 located at Vc are respectively connected to the ends of the longitudinal driving link 14B by rotatable joints 15B't 15D. In this way, the driving rod 12, the driven rod 13 and the pair of driving links 1
4A and 14B form a parallelogram link 4, and when the driving rod 12 rotates with the pinion 8 around the angle θ rotation @ 9, it connects the driven rod 13 with the flap 2 via a pair of driving links 14A and 14B. Rotate the bin I by the same angle θ
Rotate around IA and IIB.

In the illustrated example, the drive rod 12 is attached to the upper part of the pinion 8, but if necessary, it can be attached to the lower part of the pinion 8, and the mounting height of the link mechanism 4 can be changed accordingly.

As shown in Figure 2, the main rudder 1 and flaps 2 are initially placed on the bow and stern plane XX passing through the center line of the rudder pillar 3, and the rudder shaft 3 is rotated by an angle α during steering. Then, the rotation pin 11 of flap 2 is aligned with the center line O of lie@3.
Vertical plane X + X1 passing through O and making an angle α to the bow and stern line Xx
placed in At the same time, the teeth of the pinion 8 match the teeth 7 of the guide member 5 and roll, and the pinion 8 not only rotates from the solid line position to the point ml line, but also rotates the flap 2 around the rotation pin 11 by the same amount. make it move. In the illustrated example, while the main rudder 1 is rotating about 30 degrees, the flap 2 is rotated through the rotation bin IIA,
It is rotated approximately 60 degrees around 11B. In this case, the angle formed by the flap 2 and the main rudder l is β.

As described above, according to the present invention, the engagement between the pinion 8 and the teeth 7 of the spur gear of the guide member 5 is limited to the main rudder 1 itself and the rudder shaft 3.
It remains unchanged without causing any deformation, and flap 2 is the main rudder
Even if the rotary pin 11, which is connected to Vc, wears out, backlash will not occur in the above-mentioned meshing. The above rotating bin 11
Movement of the flap 2 due to wear can be absorbed by the link mechanism 4 provided between the pinion 8 and the flap 2. In addition, a relatively small pinion 8 can be used regardless of the size of the rudder, and the link mechanism has an extremely simple structure, which together reduce the manufacturing cost of the rudder.

[Brief explanation of the drawing]

Figure 1 is a side view showing the rudder of the present invention, and Figure 2 is a plan view of the rudder shown in Figure 1. 1 Main rudder 2 Flag 3 Rudder shaft 4 Link mechanism 5
Guide member 6 Support member 7 Spur gear teeth 8 Pinion 9 Pinion rotation shaft 10
Rudder 11 of the present invention Rotating bin 12 Drive rod 13 Driven rods 14A, 14B Drive link 15 A
, 15B, 15G, 15D Rotatable joint 20 Ship procedure amendment July 1, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office 1, Indication of case Patent application No. 1983-72258 2 Name of the invention Rudder 3 , Relationship with the case of the person making the amendment Patent Applicant Address: 2-4 Marunouchi, Chiyoda-ku, Tokyo, Examiner No. 1 Name: K-Seven Co., Ltd. 4, Agent 5, Date of amendment order: (Voluntary correction without) Specification of the application and Correct the drawings as follows (1) Add figure 3 to correct figures 1 and 2 as shown in the attached sheet (If) Specification (a) Between line 4 and line 5 on page 8 of the drawing. Insert the following statement. "Figure 3 shows a modification of the embodiment shown in Figures 1 and 2.
An embodiment is shown in which when the length of the drive links 14A, 14B is zero, the concave clutch 2120 rotation pin 11 is placed on the same straight line as the rotation axis 9 of the pinion 8. In this case, the upper end of the flap 2 is placed on the same plane as the upper end of the main rudder 1,
A rotating shaft 9' of the pinion 8 has a tubular shape, a lower end of which is welded to the upper end of the main rudder 1, and the pinion 8 rotates around the rotating shaft 9'. The hollow portion 16 of the rotating shaft 9' serves as a passage when the rotating pin 11 of the flap 2 is removed for repair. A vertical pin 17 inserted into an opening 18 of the pinion 8 on the left side of the rotating shaft 9' has its lower end inserted into the upper end of the flap 2 by a predetermined length, thereby fixing the pinion 8 to the flap 2. In this embodiment, even if the rotating pin 11 is worn and the flap 2 is rattled during use of the rudder, the vertical pin 17 is worn and the pinion 8 is not damaged, and the rotating pin 11 can be easily removed. There are advantages such as being able to ” (b) In the last line of page 8, correct “J, which is a plan view,” to “Plan view.” (C) Insert the following statement after the last line of page 8, “Sword 3.”
The figure is a side view showing a modified embodiment of the rudder in Figures 1 and 2. (d) Insert the following statement between lines 2 and 15 of page 9 and line 16 of page 9: "16 Hollow part 17 of rotating shaft 9' Vertical bottle 18 Opening"

Claims (1)

[Claims] In a rudder equipped with a main rudder rotatably attached to the hull and a flap rotatably attached to the tail end of the main rudder by a pivot pin parallel to the rudder axle, the flap is attached to the hull adjacent to the rudder axle. Partial spur gear teeth concentric to the rudder axle are carved into a horizontal portion which extends toward the aft end of the main rudder at a level higher than the upper end of the main rudder and which is attached to the lower end of the support material depending from the main rudder. a guide member, a pinion that is rotatably attached to the upper end of the main rudder adjacent to the tail end of the main rudder and meshes with the partial spur gear and rotates in a horizontal plane; and rotation of a sharpening pinion that is attached to the pinion and has a zero steering angle. A drive rod extending an equal distance from the shaft toward both sides 11411 of the main rudder, and a pair of drives with both ends rotatably connected to each end adjacent to the upper end of the flap on the center line of the rotation pin. A rudder comprising a flap drive mechanism comprising a link mechanism having a link.