JPS6228559Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a marine steering device of the type that operates a remotely located rudder means using two pull-only control cables.

A conventional marine steering device of this type has a structure as shown in FIG. That is, an operating shaft 2 is pivotally connected by a casing 21 and its lid 22, and has a steering wheel (hereinafter simply referred to as a wheel) (not shown) fixed thereto.
A pinion 24 provided at 3 engages by means of a shaft 26 a gear portion 27 of a drive member 25 which is pivotally connected to the casing 21 and its lid 22, and the rotation of the wheel causes the drive member to move to D'. , rotate in the E′ direction,
Conduit 29 for two pull-only control cables 29 and 30 fixed at appropriate positions in the casing by respective cap fittings 31 and 32
Inner cables 29b, 30b inserted into a, 30a
The insertion pins 37, 3 are inserted into the holes 35', 36' of the perforated cable end fittings 35, 36 fixed to the ends of these inner cables.
8 at a symmetrical position of the drive member 25;
When pulling the inner cable 29b in the H' direction, the inner cable 30b
When the inner cable 30b is pulled in the F' direction, such as being pushed in the G' direction, the inner cable 29b is pushed in the I' direction.

In recent years, marine steering devices (hereinafter referred to as steering devices) have engines with increasingly higher horsepower being used, and the load placed on the inner ropes increases accordingly, causing the inner ropes to elongate, albeit slightly. . Furthermore, since the impact of the waves acts on the rudder means (not shown) side, extension of the inner cables 29b, 30b is unavoidable. When the inner cable extends in this way, in the conventional steering device shown in FIG. Since the cable does not have the conduit 29a, it is curved as shown by the two-dot dashed line, and if the inner cable stretches further, it will be in a buckled state. The other end (not shown) of the inner cable 29b is connected to a rudder means to pull the inner cable in the I' direction, but once the inner cable 29b is bent or buckled (hereinafter simply referred to as "bending"), opening 3
1', and the wear caused by the friction and the repetition of the bending eventually lead to breakage.

Incidentally, in the case of small boats, the outboard motor itself is often rotatable and used as a rudder means, and in this case, the breakage of the inner cable is caused by the torque of the screw during navigation. This had the disadvantage of causing serious accidents because the boat would change direction rapidly.

The main object of the present invention is to provide a steering device that eliminates the trouble caused by the elongation of the inner cable in view of the drawbacks of the conventional devices as described above.

An embodiment of the present invention will be explained with reference to the drawings.
In FIG. 1 and FIG. 2, 1 is a casing;
2 is a lid of the casing 1, 3 is a steering shaft rotated by a wheel not shown, 4 is a pinion provided on the steering shaft 3, and 5 is a casing 1 and a lid 2.
A drive member is pivotally connected by a shaft 6 to the drive member, and the drive part is provided with a gear part 7 in one region which engages with the pinion 4.

9 and 10 are pull-only control cables (hereinafter referred to as pull cables), and 9
a and 10a are flexible conduits; 9b and 10b are flexible inner cables slidably inserted into these conduits; cap fittings 11 and 12 are fixed to the ends of both conduits, respectively; , these cap metal fittings are fixed to hooks 13 and 14 of the casing 1, respectively.

Perforated cable end fittings (hereinafter referred to as cable end fittings) are provided at the ends of both inner cables 9b and 10b with elongated holes 15a and 16a that are long in the longitudinal direction of the respective inner cables.
15 and 16 are fixed.

The shaft 3 and shaft 6 shown in FIG. 1 of the drive member 5
2 at a symmetrical position with respect to the center line l connecting the centers of
The real pins 17, 18 are implanted, and the pins 17, 1
8 are long holes 15 of the cable end fittings 15 and 16, respectively.
a, 16a, and both cable end fittings are pivotally connected to the drive member 5. In this case, in the normal state, both pins 17 and 18 are connected to both long holes 15a and 1
Upper end of 6a (position far from inner cable) 15a', 16
Adjustment is made when attaching the cable to the steering device so that the cable is in contact with a' and there is no slack in both inner cables 9b, 10b.

The other ends of both cables 9 and 10 are connected to rudder means located at a remote location (not shown), and are connected to rudder means located at a remote location (not shown).
By rotating the driving member 5 in directions D and E due to rotation in direction C, the rudder means is remotely controlled and the direction of travel of the watercraft can be changed.

To explain the operation and effect of the present invention, when the pinion rotates in the B (or C) direction by the wheel, the drive member 5 rotates in the D (or E) direction, and the elongated hole of the cable end fitting 16 (or 15) 16a (or 15a)
By the pin 18 (or 17) which is pivotally connected to the
The inner rope 10b (or 9b) of the pulling cable 10 (or 9) is pulled in the F (or H) direction, causing the rudder means to rotate in one direction (or the other). In this case, rotation of the rudder means causes the other pull cable 9 (or 1
The inner cables 9b (or 10b) of 0) are each pulled in the I (or G) direction, but if at least one of the inner cables 9b, 10b is stretched due to a strong pulling load, the rudder means The pulling of the other inner rope 9b (or 10b) will be delayed accordingly.If there is a delay in pulling the other inner rope 9b (or 10b) by the rudder means, the rope end fitting 15 (or 16) will be delayed. Insert the pin 17 into the elongated hole 15a (or 16a).
(or 18) slides in the I (or G) direction, the inner cable 9b (or 10
b) is not curved as in the case of the conventional inner cable shown in FIG.
is the opening 11' of the cap fitting 11 (or 12).
(or 12'), there is no possibility of wear due to rubbing or breakage, so a steering device that is safer than ever before can be obtained.

As mentioned above, if at least one of the inner cables 9b, 10b is stretched, even if the wheels are fixed, the rudder means will inadvertently rotate by the length of the stretch, causing the boat to make a small meandering motion, and the crew members will be forced to Since the elongation of the cable can be known, the elongation of the inner cable can be corrected after reaching a safe location, and even in this case, there is no need to worry about the inner cable breaking before the boat reaches a safe location. . The conventional method for correcting the elongation of the inner cables is to lengthen at least one of the conduits 9a, 10a and relatively shorten the inner cables 9b, 10b. In addition, the inner cable expands relatively quickly for a while after it starts to be used, but after that, the expansion becomes extremely small, and therefore the elongated hole 15
a and 16a do not need to be very long either.

As mentioned above, the present invention is a very simple improvement that eliminates the dangerous breakage accident of the inner cable and has great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention.
FIG. 2 is a sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a partially cutaway front view of the conventional device. 1: Casing, 2: Lid, 5: Drive member, 9,
10: Pull-only control cable, 9a, 1
0a: Conduit, 9b, 10b: Inner cable, 11, 12:
Cap fittings, 15, 16: Perforated cable end fittings, 1
5a, 16a: Long hole, 17, 18: Pin.

Claims (1)

[Scope of utility model registration request] A steering shaft is pivotally supported on one side of the casing, has a steering wheel fixed to one end, and has a pinion engraved in the other end, and teeth that mesh with the pinion are engraved on its outer peripheral surface, and one side surface thereof. a driving member having a pair of pins implanted at symmetrical positions in the outer circumferential direction from the axis of the casing and pivotally supported by the casing; two control cables fixed to the other casing; and the control cables. In a marine steering device of the type in which the holes of the perforated cable end fittings fixed to the ends of the respective inner cables are engaged with the pins, the holes of the perforated cable end fittings are fixed to the ends of the inner cables in the axial direction. A marine steering device characterized by having a hole.