JPS6037909Y2 - Tilt device of outdrive unit in outboard propulsion machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tilt device for an outdrive unit in an inboard/outboard motor or an outboard motor.

FIG. 1 shows the support structure of a conventional outdrive unit of this type. The outdrive unit 2 is rotatably supported on the stern 1 side so that it can be tilted up and down. The astern lever 3 is more protruded.

On the other hand, a support member 4 protrudes from the stern 1, and the astern lever 3 is locked to a thrust rod 5 inserted into the support member 4. In this way, the outdrive unit 2 is operated during normal cruising. When the outdrive unit 2 hits an obstacle, the astern lever 3 disengages from the thrust rod 5, and the outdrive unit 2 tilts upward to the two-dot chain line in the figure. This prevents damage to the outdrive unit 2.

By the way, fishing boats do not necessarily sail only in areas with sufficient depth; for example, at seaweed, kelp, yellowtail, and pearl farms, they sail on nets or ropes stretched close to the water surface. There are many opportunities for shallow water navigation.

In such a case, the above-mentioned astern lever, which maintains the outdrive unit in only one normal sailing attitude, has the disadvantage that the outdrive unit can get caught in these nets, ropes, and the seabed.

The present invention was developed in view of these points, and the above-mentioned astern lever has a structure and waist that allows the outdrive unit to be held in a slightly tilted-up position, without getting caught in nets, ropes, etc. In addition, the present invention is designed to allow for normal sailing in an outdrive equipped with an astern lever only for normal sailing.
It is designed so that it can be easily modified to be equipped with a tilt-up astern lever by simply modifying the standard astern lever without any modification to the outdrive unit side. Now, by forming two stages of tilt-up locking parts on the above-mentioned tilt-up astern lever, the tilt-up angle of either one can be selected as appropriate, giving a range of choices for shallow water navigation. It is characterized by being able to obtain a ship speed that corresponds to shallow water conditions.

Hereinafter, the configuration of the present invention will be explained based on the drawings showing one embodiment. In FIG. The outdrive unit 14 is rotatably supported by the protruding pivot member 13 via a tilting pin 15 so that it can be tilted up and down.

Numeral 16 is a support member that protrudes rearward from the transom board 12 like the pivot member 13, and 17 is a support member that protrudes from the front side of the outdrive unit 14 toward the stern 11 and is locked to the support member 16 by a thrust rod 18. It is Astern Leper.

Further, 19 indicates a propeller. In the above, the astern lever 17 according to the present invention is a standard astern lever 17a which is made of a metal plate bent in a U-shape at the center, as shown in FIG.
and a set of two tilt-up astern levers 17b that are attached to the tip of the standard astern lever 17a.

17b.

Among these, the standard astern lever 17a has the left and right main body parts 20.20 obtained by the above bending, the tips thereof being slightly inclined upward, and the lower end near the tips having a semicircular notch. It has locking portions 21, 21 for normal navigation, and furthermore, at the rear thereof, support pin holes 22, 22 are similarly opened into the main body portion 20°20.

On the other hand, the tilt-up astern levers 17b, 17b, which are formed separately from the standard astern lever 17a, have their base ends connected to the main body portion 20.20 of the standard astern lever 17a (23.23). It was moored at
As a result, the tilt-up astern lever 17
b, 17b protrude forward from the standard astern lever 17a, and have tilt-up locking portions 24a, 24a, 24b cut out in two semicircular shapes in the front and rear at the lower ends thereof.
, 24b.

As shown in FIGS. 2 and 3, the astern lever 17 of the present invention configured as described above has the bending part 25 at the center of the standard destern lever 1a horizontally aligned with the outdrive unit 14. To the steering pin part 26, which is the pivot point,
They are fitted from the rear to project the main body parts 20, 20 and the tilt-up astern levers 17b, 17b forward, and are inserted into the support pin holes 22, 22 on the front side of the steering pin part 26. At the support pin 27,
It is attached to the outdrive unit 14.

The Astern lever 17 attached to the outdrive unit 14 in this way is the same as the standard Astern lever 1.
7a, and a tilt-up locking portion 24a formed in two stages, front and rear, on the tilt-up astern lever 17b.

24b are formed in three stages at appropriate intervals, and in the present invention, these three stages of locking parts 219
By appropriately selecting 24a and 24b, the outdrive unit 14 is maintained in the normal cruising attitude and the tilt-up attitude in two stages, front and rear.

That is, FIG. 2 shows a state in which the outdrive unit 14 is tilted up approximately 30 degrees for shallow water navigation, and in this case, the astern lever 17 for tilt up is
The front and rear locking portions 24a formed on b and 17b are fitted and locked to the thrust rod 18 of the support member 16, and the two-dot chain line in the figure is a tilt-up astern lever 17b.

17b is fitted and locked in the same manner as described above, and is tilted up approximately 20 degrees. By selecting these tilt angles of 30 degrees and 20 degrees, it is possible to adjust the situation in shallow water. It becomes possible to sail according to the conditions.

For example, for the same output, a case with a tilt up angle of 20° is about 10% better than a case with a tilt up angle of 30°.
In addition, a universal joint is used between the output shaft inside the ship and the input shaft of the outdrive unit 14, but due to the strength of this universal joint, when the tilt-up angle is 30°, the speed of the ship is increased. While the output is limited to less than the load, when the tilt-up angle is 20 degrees, full load is possible, so full power cruising is possible.

FIG. 3 shows a state in which the outdrive unit 14 is held in a normal cruising attitude, and in this case, it is fitted and locked into a locking portion 21 shaped like a standard astern lever 17a.

28a, 28b, and 28c in FIG. 2 are thrust rods 18 that are bored into the support member 16 at appropriate intervals in the front and back direction.
By changing the insertion position of the thrust rod 18 in the support hole for insertion, it is possible to more finely change the inclination angle of the outdrive unit 14.

As described above, according to the present invention, it is possible to hold the outdrive unit in a slightly tilted-up position using the tilt-up astern lever. This has the effect of greatly improving work efficiency.

In addition, although the need to sail with the outdrive unit in a semi-tilted position differs depending on the region or industry, in this invention, the standard astern lever for tilting up is replaced with a separate astern lever. Therefore, the standard astern lever can be used for all products, and the tilt-up astern lever only needs to be provided with a plate-like one as an option, as in this embodiment. The cost is lower than the cost of separately preparing an integrated type with both a tilt-up locking part and a standard-use locking part, and a standard-only type separately. It is also economical compared to equipping all items.

Furthermore, as mentioned above, if you use an integrated type that has both tilt-up and standard functions, you will need to modify the existing standard-only Astern lever to one that can also be used for tilt-up. In this case, the astern lever support pin, etc. may be rusted due to salt adhesion, making it difficult to remove, and if you force it, there is a risk of damaging the outdrive unit. This has the advantage that it can be easily installed by drilling bolt holes etc. into the standard Astern lever in advance, making it extremely easy to install.

Furthermore, if you want to modify a model equipped with only the standard Astern lever so that it can also be tilted up, you can process it so that the Astern lever for tilting up can be attached to the standard Astern lever. Even if it may be rusted due to salt adhesion, it can be removed, and the modification is much easier and cheaper than when processing to attach a tilt-up astern lever to the outdrive unit side. I can do it.

In particular, in this invention, the above-mentioned tilt-up astern lever has two stages of tilt-up locking parts, front and rear, and it is possible to select either one of the tilt-up angles, so there is a wide range of options for shallow water navigation. Therefore, there is an advantage that an appropriate ship speed can be obtained depending on the situation in shallow water.

[Brief explanation of the drawing]

Fig. 1 is a front view of the astern lever support section showing a conventional example, Fig. 2 is a front view of an embodiment of the present invention in which the outdrive unit is held in a tilted up position, and Fig. 3 is a front view of the astern lever support section showing a conventional example. FIG. 4 is a front view of the main parts in a state where the astern lever is held in a running position, and is a perspective view of the astern lever of the present invention. 11... Stern, 14... Outdrive unit, 16... Support member, 17...
...Astern lever, 17a...Standard Astern lever 17b...Astern lever for tilt up, 18...Thrust rod, 21,
24a, 24b...Locking portions.

Claims (1)

[Scope of utility model registration request] In an outboard propulsion machine, an astern lever protrudes from an outdrive unit that is placed outside the stern and can be tilted in the vertical direction, and the locking part of the astern lever is locked to a thrust rod on the stern side. , the above-mentioned astern lever is composed of a standard astern lever and an astern lever for tilting up which is used by being fixed to the standard astern lever, and the outdrive unit is attached to the standard astern lever for normal cruising. The locking part for normal navigation that keeps the outdrive unit in a slightly tilted-up position is included in the astern lever for tilt-up, as described above. What is claimed is: 1. A tilting device for an outdrive unit in an outboard propulsion machine, characterized in that the tilt-up locking portions are formed in two stages, front and rear, so that two stages of tilt-up angles can be selected.