JPH0310152Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shallow water navigation device for an inboard/outboard motor.

Conventionally, inboard/outboard motors have a structure that allows them to be flipped up as a safety mechanism when the hull of a boat is brought ashore and when it collides with an obstacle. That is, when the boat is brought ashore or when not in use, the inboard/outboard motor is designed to flip up above the bottom of the boat and above the water surface. This state is as shown in Figure 1 of the attached drawings, where the steady state of the inboard/outboard motor 50 is drawn by a solid line, and if the center line is indicated by X-X, then this center line X-X is approximately When landing, the center line occupies the position X _{1 -} and x ₁
-X ₁ intersects at angle A.

However, when a ship in steady state navigation navigates shallow waters where the lower end of the inboard/outboard engine interferes with the seabed, it is necessary to lift the inboard/outboard engine to the extent that the screw is not exposed above the water surface. . This state is also shown in Figure 1 with the center line indicated by a chain line as X ₂ -X ₂ , and at this time, the center lines X-X and X ₂ -X ₂ intersect at an angle B. , in this case, of course A>B.

However, conventional inboard/outboard motors can only be locked in either the steady state or the onshore state; for example, locking in shallow water navigation is not generally applied. Not yet. Therefore, smooth navigation was often hindered.

Incidentally, one proposal for making this possible has already been disclosed as a ``tilting device for an outdrive unit in an inboard/outboard motor'' (see Japanese Utility Model Application Publication No. 128597/1983). However, this proposed device has a problem in that its operation is extremely complicated.

As described above, the present invention has a simple structure that allows the inboard/outboard motor to be flipped up to an intermediate angle B and locked to the hull in shallow water navigation, and also has a simple structure that allows the inboard/outboard motor to be flipped up to an intermediate angle B and locked to the hull in shallow water navigation. The object of the present invention is to provide a shallow water navigation device for an inboard/outboard motor that is easy to operate and does not require special labor for operations such as switching.

In order to achieve this objective, the present invention has an inboard/outboard motor housing attached to the lower part of the fork whose upper end is attached to the transom plate so as to be pivotable, and the housing is attached to the lower part of the fork so as to be pivotable. The catcher is held in a steady state by engaging with the catcher pin attached to the transom plate arm in the engagement groove provided on the lower side of the catcher, and when the engagement is released, it is returned to the landing state via the fork. To keep it in an intermediate state,
A stopper is disposed pivotably between the transom plate and the fork, by which the housing is locked with respect to the transom plate, and another lever is connected to the lower part of the stopper. The other lever is rotatably attached at its upper end to a long bar-shaped pin rotatably attached to the transom plate;
The lever is characterized in that it is interconnected with other levers via a coil spring wrapped around a pin.

Hereinafter, the present invention will be described in Sections 2 to 4 showing one embodiment thereof.
This will be explained based on the diagram.

First, as shown in FIG. 2, the lower part of the fork 3 is attached to the arm 2 ₁ protruding from the upper part of the transom plate 2 of the hull 1 via the fork pin 3 ₁ so as to be able to pivot around the fork pin 3 ₁ . To,
The housing 4 of the inboard/outboard motor 50 is attached to the housing 4 of the inboard/outboard motor 50 via a pin 3 ₂ so as to be able to pivot around the pin 3 ₂ , and the fork 3 is attached to the housing 4 of the inboard/outboard motor 50 via the pin 3 ₂ (see FIG. 4C). The catcher 5 has a catcher 5 rotatably attached to the catcher 5, and an arm ₂₂ provided protruding from the lower part of the transom plate 2 in an engaging groove ₅₂ formed on the lower side thereof (see Fig. 4C). A catch pin 6 attached to the housing 4 is removably engaged with the housing 4 to maintain the housing 4 in a steady state on the hull 1, which is similar to the conventional configuration. That is, when bringing the inboard/outboard motor 50 ashore, first, the engagement between the catcher 5 and the catcher pin 6 is released by appropriate means, and then the housing 4 is gripped by the grip 7 fixed to its upper part. , attach housing 4 to fork pin 3
This is done by rotating around ₁ .

By the way, in the present invention, as shown in FIGS. 2 and 3, a long bar-shaped horizontal pin A10 is attached to a rib ₂₃ fixed to the transom plate 2 facing the fork 3 at a height approximately equal to the height of the fork 3. A lever A12 is rotatably supported at half height, and a lever A12 is attached to one end ₁₀₁ protruding to the outside from a rib ₂₃ supporting this pin A10 via a pin B11.
At its lower end, it is mounted upward so that it can rotate slightly within the plane in the axial direction of the pin A10.

Also, a lever B is located approximately in the middle of the pin A10.
13 is rotatably attached at its upper end portion, and this lever B13 is fixed to the pin A10 by a pin D14 fixed at right angles to the pin A10 at one end, and is wound around the pin A10. The linear extension 15 ₁ at the other end of the coil spring 15 is
A pin A1 is attached to the middle part of the lever B13 in the rotational radial direction.
As _shown in FIG. 17 forks 3
When the coil spring 15 is held in the holding part 17 ₁ on the side, the coil spring 15 is
The extension part 15 ₁ connects lever B1 via pin E16.
3, as seen in FIG. 2, to prevent counterclockwise rotation about pin A10.

The axial position of the lever B13 above the pin A10 is such that one side of the lever B13 is connected to the end of the coil spring 15 on the pin E16 side, and the other side is connected to the pin A10 by the pin D14. By pin C18 driven in the same direction as, respectively,
Regulate by holding.

Further, a substantially Y-shaped stopper 20 is rotatably attached to the arm ₂₂ of the transom plate 2 at its lower end portion by a stopper pin 21, and the lower portion of this stopper 20 and the lever B11 are connected to each other. They are connected by a U-shaped connecting pin 22. Also, stoppa 20
At the tip of each upper arm portion ₂₀₁ , an arcuate stopper receiving portion 34 is formed on the end face of a protrusion ₃₃ formed on the side of the transom plate 2 at the middle height of the fork _3. An engaging portion ₂₀₂ having a convex contour corresponding to the concave ring portion is formed.

Further, as will be explained later, on the outer surface of the stopper 20, when the engaging portion 20 ₂ at the tip of each arm portion 20 ₁ of the stopper 20 engages with the stopper receiving portion 3 ₄ of the fork 3, one side is formed. A stop 23 is provided protrudingly at a position where it comes into contact with the upper side of the arm ₂₂ of the transom plate 2.

Although the present invention has the above configuration,
Next, its operation will be explained.

First, as shown in Figures 2, 3 and 4A,
Attach the hook 17 to the holding part ₁₇ on the side of the fork 3.
Lever A12 whose bar portion is held by
is removed from the hook 17 by rotating around the pin B11 using its rotatability, and the holding portion 17 of the hook 17 on the side of the transom plate 2 is removed.
It is held by ₂ . In this case, the pin A10 is rotated by an angle corresponding to this rotation angle of the lever A12, and the coil spring 15 is therefore rotated by the pin E16 whose straight portion ₁₅₁ is fixed to the lever B13.
By being connected to it, unwinding force can be applied. As a result, the lever B13 receives the force of the coil spring 15 resisting the unwinding and tries to return to its original state via the pin E16, and moves counterclockwise around the pin A10 as seen in FIG. Trying to turn, therefore, U is applied to lever B13.
The stopper 20 connected by a letter-shaped connecting pin 22 is rotated clockwise around the stopper pin 21, and the corner of the tip of the arm portion ₂₀₁ is
As shown in FIG. 4B, it hits the fork 3 and stops in that state. Furthermore, at this position,
The coil spring 15 still retains a restoring force.

Therefore, the engagement groove ₅₁ of the catcher 5 and the catcher pin 6 are disengaged as appropriate, and the housing 4
Grasp the grip 7 at the rear end, pivot the housing 4 around the fork pin ₃₁ , and pull it up.
The stopper 20 continues to pivot clockwise around the stopper pin 21 via the connecting pin 22 as the lever B13 under the restoring force of the coil spring 15 pivots around the pin A10. The corner of the upper end of the arm portion ₂₀₁ rotates while rubbing on the surface of the fork 3, and when the engaging portion ₂₀₂ at the tip of the stopper 20 reaches the position of the stopper receiving portion ₃₄ of the fork 3, the stopper 20 The engaging portion 20 ₂ and the stopper receiving portion 3 ₄ are engaged, and as shown in FIG.
The state shown in is reached, and the inboard/outboard motor becomes suitable for shallow water navigation.

In this state, the stop 23 provided on the stopper 20 is connected to the arm 2 ₂ of the transom plate 2.
It comes into contact with the top side of. Therefore, the inboard/outboard motor cannot turn any further around the fork pin ₃₁ , and therefore, while the inboard/outboard motor is navigating in shallow water,
Even if the lower end of the fork 3 collides with an obstacle and jumps up, the fork 3 will be maintained in the same position by the stop 23 if the inboard/outboard motor falls again after passing the obstacle. The stopper 20 held in place will hold it in its original shallow water navigation position.

As described above, according to the device of the present invention, in addition to the steady state and the landing state, the inboard/outboard motor can be placed in the intermediate position between these states, such as the shallow water navigation position, with respect to the hull. Hook position 1
7 from the holding part ₁₇₁ to the holding part ₁₇₂ , and by grasping the grip 7 and pulling up the housing 4, the engaging part ₂₀₂ of the stopper 20 will automatically engage the stopper receiving part ₃₄ of the fork 3. By simply moving the lever 12 from the holding part 17 ₂ to the holding part 17 ₁ so as to lock it, or vice versa, by grasping the grip 7 and pulling up the housing 4, the distance between the stopper 20 and the fork 3 can be removed. The lock is automatically released,
Therefore, it is possible to repeatedly switch the position of the inboard/outboard motor 50 between the shallow water navigation state and the steady state without requiring any particular effort, thereby improving the navigation performance of the inboard/outboard motor. This makes it possible to significantly expand the scope of its use.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the state taken for the hull of an inboard/outboard motor, and FIG. 2 is a front view showing one embodiment of the present invention.
FIG. 3 is an enlarged side view of a part thereof, and FIG. 4 is an explanatory diagram of its operation. 2...Trans Am plate, 3...Fork,
3 ₁ ...fork pin, 4...housing, 5...
...Catcher, 5 ₂ ...Engagement groove, 6...Catcher pin, 10...Pin A, 11...Pin B, 12
...Lever A, 13...Lever B, 15...Coil spring, 17...Hook, 20...Stopper, 2
1... Stopper pin, 22... Connection pin, 23...
...stop.

Claims (1)

[Claims for Utility Model Registration] 1. A fork 3 whose upper end is rotatably attached to an arm 2 ₁ provided protruding from the upper part of the tramzam plate 2 via a fork pin 3 ₁ , and a pin 3 ₂ attached to the lower part of the fork 3. The housing 4 is rotatably attached to the shaft of the pin ₃₂ , and the engagement groove ₅₂ formed on the lower side of the catcher 5, which is rotatably attached to the lower part of the fork 3, is connected to the tram. It is maintained in a steady state by engaging with the catch pin 6 attached to the other arm ₂₂ provided protrudingly from the lower part of the catch plate 2, and the engagement groove ₅₂ of the catcher 5 and the catch pin 6 In an inboard/outboard motor that can be turned around the fork pin ₃₁ to bring it ashore when the tramzam plate 2 and fork 3 are misaligned,
A Y-shaped stopper 20 is disposed between the arm 2 and the arm ₂ by a stopper pin 21, and
The stopper 20 is configured such that the housing 4 is in a steady state;
When in the intermediate position between the landing state and the landing state, the housing 4 is engaged with the fork 3 to hold the housing 4 in this position, and another lever B13 is connected to the lower part of the stopper 20, and this other lever B13 is connected to the lower part of the stopper 20. The lever B13 is rotatably attached at its upper end to a long bar-shaped pin A10 that is rotatably attached to the tramzam plate 2, and the long bar-shaped pin A10 and the other lever B13 are connected above the pin A10. coil spring 15 wrapped around
Shallow water navigation equipment consisting of interconnected devices. 2 The stopper 20 is rotatably attached at its lower end to the other arm 2 ₂ of the tram-zam plate 2 via a stopper pin 21 .
The lower part of the lever B13 is connected to the lower part of the lever B13 via a U-shaped connecting pin 22, and the long rod-shaped pin A10 is rotatably attached to the rib ₂₃ of the tramzam plate 2, and the lever B13
has a long rod-shaped pin A10 at its upper end.
is rotatably attached to the pin A10.
and the lever B13 are interconnected via a coil spring 15 wound around the pin A10, and the rotation of the lever B13 is regulated by the return force of the coil spring 15, and,
One end of the pin A10 has a lever A12 connected to the lever A12 at its lower end via a pin B11.
12. The shallow water navigation device according to claim 1, wherein the pin A10 is attached to allow slight rotation within the axial plane of the pin A10. 3. The upper part of the lever A12 is restrained in two positions by the hook 17 fixed to the arm ₂₁ of the tramzam plate 2, and in one position ₁₇₁ the coil spring 15 wound around the pin A10 is the position that restricts the rotation of the lever B13, and the other position ₁₇₂ is a position where the coil spring 15 is given an unwinding force by the lever B13. Shallow water navigation device according to item 2. 4 An engaging portion 2 is provided between the tip of the stopper 20 and the fork 3 to engage with each other when the housing 4 is in a shallow water navigation state intermediate between the steady state and the landed state.
0 ₂ and a stopper portion 3 ₄ , respectively.