JPH0226799Y2 - - Google Patents

Description

[Detailed description of the invention] This invention uses a control cable that is connected to the steering handle at one end and the outboard motor at the other end, and is inserted freely through a flexible outer casing. The present invention relates to a steering device for a twin outboard motor used as an operating force transmission member.

For example, when steering an outboard motor boat, etc., by swinging the outboard motor attached to the stern from side to side by operating the steering wheel at the front of the boat, conventionally, one end of the outboard motor was attached to the steering wheel. A control cable in which the connected inner cable is slidably inserted into a flexible outer casing is routed along the side of the hull, and its terminal portion is bent toward the outboard motor near the stern. It is held freely swinging by a ball post kit fixed to the stern, one end is fixed to the other end of the inner cable, and the other end is rotatably connected to the steering hook protruding forward of the outboard motor. The rod is inserted freely into a sleeve fixed to the tip of the outer casing, and the rod is slidably inserted into the sleeve fixed to the tip of the outer casing. A steering device is known in which the steering hook of the outboard motor is swung left and right by sliding forward and backward in the sleeve. At this time, as the steering hook swings left and right, the control cable is bent in the left and right direction at the same time as the portion held by the ball post kit is pushed and pulled, and the inner cable slides against the inner circumferential surface of the outer casing. Due to the increase in dynamic friction and bending moment, it becomes difficult to operate the steering wheel, and there is a risk that the inner cable may break due to repeated steering operations.As a countermeasure, ball post kits and ships are used to reduce the bending angle of the inner cable. It is necessary to maintain as much distance as possible from the outside machine. However, in case the outboard motor encounters trouble while sailing, such as when the outboard motor collides with an underwater obstacle and the outboard motor breaks, or the engine breaks down, the two outboard motors are connected via a link. Outboard motors may be installed in parallel, but in this case, if a steering device like the one described above is used, the end of the control cable will be connected to the first outboard motor located on the side closer to the ball post kit. Since the distance between the first outboard motor and the ball post kit is smaller than when using a single outboard motor, the bending angle of the inner cable during steering operation becomes even larger, making the steering wheel easier to operate. In addition, since the ball post kit consists of many parts, it is difficult to assemble the control cable and fix the ball post kit to the hull. There was a problem in that the installation work required was complicated and took a long time.

It is an object of the present invention to provide a steering device for a dual outboard motor that eliminates these drawbacks, has excellent durability and operability, and allows for easy and quick connection work to the outboard motor. This is the purpose.

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

The first outboard motor A 1 on the starboard side is installed on the stern edge ₁ .
and the outboard motor _A2 on the port side are arranged parallel to each other with an appropriate distance between them by two brackets E and E, and are fixed by the tightening portions H and H of said brackets E and E, respectively. , each of the outboard motors A ₁ and A ₂ is a tilting body C centered on a hollow shaft P that extends horizontally between brackets E and E and has male screws M and M formed at both ends.
is mounted so that it can be tilted freely, and the engine that drives the screw mounted below is held on the tilting body C above, and the main body B, which has a steering hook F formed in the front, can be freely rotated about a vertical axis D. It has a supported structure.

On the other hand, a control cable 2 having an inner cable 3 connected to a steering handle (not shown) at one end and slidably inserted into a flexible outer casing 4 is routed along the starboard side of the hull and bent at the stern. In that terminal part, the second
As shown in the figure, the end of the outer casing 4 is fixed to the rear end of the cylindrical fixture 5, which has an enlarged-diameter stepped portion 15 formed on the outer periphery of the tip, by caulking, and a sleeve 22 is attached to the inner periphery of the tip. A rod 24 whose rear end is screwed and whose rear end is fixed to the other end of the inner cable 3 by caulking is slidably inserted into the sleeve 22 and protrudes from the sleeve 22. At its tip, a slider ram 23 is fitted on the outer periphery of a sleeve 22 so as to be able to slide freely.
The terminal device G is constructed by screwing a rod end 29 to which one end is fixed by caulking and a connector 28 having a connecting hole 30 transparent at the tip is screwed. Here, the cylindrical fixture 5, the slider ram 23
The outer diameter of the connector 28 is slightly smaller than the inner diameter of the hollow shaft P, and the terminal device G can be inserted into the hollow shaft P.
The ring-shaped seal member 21 made of rubber material is inserted into the hollow shaft P ₁ of the outboard motor A ₁ from the starboard side, and the ring-shaped seal member 21 made of a rubber material is attached to the tip protruding to the port side. Female thread 26 at the rear end, inward facing collar 1
6, the terminal device G is inserted into the hollow shaft P ₂ of the second outboard motor A ₂ so that its tip protrudes toward the port side, as shown in FIG. 3. , a substantially semi-cylindrical locking ring 7 divided into two in the circumferential direction on a reduced diameter portion 25 formed on the outer peripheral surface of the cylindrical fixture 5 between the hollow shaft P ₁ and the hollow shaft P ₂ , 7 are fitted and locked to the enlarged diameter stepped portion 15 of the cylindrical fixture 5,
The hub nut 6 is slid in the direction of the arrow in the figure to abut and lock the collar 16 against the enlarged diameter stepped portions 27, 27 at the center of the outer circumferential surface of the locking rings 7, 7, and then the hub nut 6 is locked together with the terminal device G. After screwing the female screw 26 of the hub nut 6 into the male screw M on the starboard side of the hollow shaft P ₂ by sliding the seal member 21 onto the outer periphery of the rear end of the hub nut 6, the cylindrical shape is fixed. A tool 5 is fixed to the hollow shaft _P2 .

At this time, the locking rings 7, 7 are fitted into the reduced diameter portion 25 of the cylindrical fixture 5 to restrict free movement in the axial direction, so the end of the outer casing 4 remains at a fixed position without free movement. Since it is fixed and sealed by the seal member 21, the inside of the terminal member G can be prevented from being corroded by seawater or the like. Then, one end of the steering bar 8 whose central portion is bent on a horizontal plane is bent downward, and a small-diameter protrusion 9 formed at the tip thereof is rotatably fitted into the connection hole 30 of the connector 28. The male thread 10 formed upward at the end is inserted from below into the mounting hole 11 provided through the tip of the steering hook _F2 of the second outboard motor _A2 , and the nut 12 is screwed into the shaft. Both ends of a connecting bar 20 whose length can be adjusted are connected to each other in a freely movable manner, and are connected to connecting holes (not shown) transparently provided in the center of the steering hooks F _{1 and F 2 of} the outboard motors A 1 _and A 2 . The length of the connecting bar 20 is adjusted so that the outboard motors A ₁ and A ₂ are oriented in the same direction. . Also, hollow shaft P ₁
Hub nuts N, N, N are screwed into the male threads M, M at both ends of the hollow shaft P2 and the male thread M on the port side of the hollow shaft _P2 , respectively, and are sealed.

Next, the operation of the steering device will be explained. When the steering wheel is turned to the left, the inner cable 3 is pulled, and the rod 24 and slider ram 23 at its tip are pulled into the hollow shaft P ₂ to starboard, and are connected by the steering bar 8 and the connecting bar 20. Ta2
The main bodies B ₁ and B ₂ of the original outboard motors A ₁ and A ₂ are vertical axes.
Rotate clockwise around D ₁ and D ₂ to steer the boat to the left, and conversely turn the steering wheel to the right, and the rod 24 and slide dam 23 will rotate around the hollow shaft.
It is pushed out from P ₂ to the port side, and the main bodies B ₁ and B ₂ rotate counterclockwise, and the ship steers to the right. At this time, the steering hooks F ₁ and F ₂ form a parallel link, and the main body B ₁ ,
B ₂ is designed to always rotate by the same angle.

As specifically explained in the above embodiment,
The steering device for a two-engine outboard motor of the present invention has a tilting body attached to a hollow shaft horizontally attached to a bracket so as to be tiltable about the hollow shaft, and an engine and an engine connected to the tilting body. Two outboard motors, the main bodies of which hold the screws, are rotatably mounted around a vertical axis, and are fixed in parallel to the hull using the brackets, and the inner cable, one end of which is connected to the steering handle, is flexible. A control cable is slidably inserted into an outer casing having a structure, and is routed along the hull, and the outer casing is passed through the hollow shaft of the first outboard motor, and a cylindrical fixing member is fixed to the end of the outer casing. A locking ring divided into two or more in the circumferential direction is locked and attached to the enlarged diameter step formed on the outer periphery of the tool, and a hub nut with an inward flange locked to the locking ring is attached to the second hub nut.
screwed onto one end of the hollow shaft of the outboard motor, and connecting an end of the inner cable to the rear end of a rod whose tip protrudes from the other end of the hollow shaft;
The tip of the rod is connected to the body of the second outboard motor via a link, and the bodies of the second outboard motor and the first outboard motor are connected to each other by a link. A locking ring divided into two or more parts in the circumferential direction is locked and attached to an enlarged diameter step formed on the outer periphery of a cylindrical fixture fixed to the end of an inner cable, The hub nut, which has a flange formed on its inner periphery that is locked to the locking ring, is screwed onto one end of the hollow shaft of the second outboard motor.
After the outer casing is passed through the hollow shaft of the first outboard motor, it can be fixed to one end of the hollow shaft of the second outboard motor, so that the terminal portion of the control cable is located on the axis of the hollow shaft. The inner cable is held in a straight line and will not be bent during steering operation, reducing the bending moment applied to the inner cable and the sliding friction force between the inner cable and the outer casing, eliminating the risk of breakage of the inner cable. This eliminates the need for the conventional ball post kit for fixing the terminal of the outer casing to the hull, making assembly work easier and faster. Since the rod is inserted into the hollow shaft of the second outboard motor, when the steering is operated, the rod slides using the hollow shaft of the second outboard motor as a guide, allowing stable reciprocating movements of pushing and pulling. Since the tip of the rod to the end of the control cable is held in a straight line that overlaps the axis of the hollow shaft, the operation of the steering handle is not heavy and provides excellent operability.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a cross-sectional view showing details of the terminal device of the steering transmission member, and Fig. 3 is a partially cutaway perspective view showing the procedure for fixing the terminal device. It is. 1: Edge, 2: Control cable, 3: Inner cable, 4: Outer casing, 5: Cylindrical fixture, 6: Hub nut, 7: Locking ring, 1
5: Expanded diameter step, 16: Tsuba, 24: Rod, A ₁ ,
A ₂ : Outboard motor, B ₁ , B ₂ : Main body, C ₁ , C ₂ : Tilting body,
D ₁ , D ₂ : Vertical axis, E ₁ , E ₂ : Bracket.

Claims (1)

[Scope of utility model registration request] A tilting body is attached to a hollow shaft horizontally attached to a bracket so as to be tiltable about the hollow shaft, and a main body holding an engine and a screw connected to the engine is attached to the tilting body so as to be freely rotatable about a vertical axis. The two installed outboard motors are fixed in parallel to the hull using the brackets, and a control cable with one end connected to the steering handle and an inner cable slidably inserted into the flexible outer casing is attached to the hull. The outer casing is routed along the hollow shaft of the first outboard motor, and the outer casing is routed along the outer periphery of the cylindrical fixture fixed to the end of the outer casing. A locking ring divided into two or more parts is locked and installed, and a hub nut with an inward flange locked to the locking ring is screwed onto one end of the hollow shaft of the second outboard motor, and A terminal of the inner cable is connected to the rear end of a rod whose tip protrudes from the other end of the hollow shaft, and the tip of the rod is connected to the main body of the second outboard motor via a link, and The second
A steering device for a dual outboard motor, characterized in that the main bodies of the outboard motor and the first outboard motor are connected to each other by a link.