JPS62139792A - Supporting device for outerboard machine - Google Patents

Abstract

PURPOSE:To lift an outerboard machine without associating a large rotary stroke by forming upper and lower guide rails on a guide bracket, then engaging the upper and lower guide rollers of a supporting bracket with said guide rails and thereafter securing the outerboard machine to said supporting bracket. CONSTITUTION:When an outerboard machine 7 is contained while being tilted up, a tilt cylinder 11 is stretched and supporting bracket 6 is subjected to an obliquely upward push-up force. Consequently, upper and lower guide rollers 9, 10 while lift along the upper and lower guide rails 4, 5. Since the upper and lower guide rails 4, 5 are inclined and the inclination angle of the lower guide rail 5 is small, the outerboard machine 7 is entirely lifted while rotating the lower end section of the outerboard machine 7 rearwardly through the supporting bracket 6 and containing as shown by the dash and dot line. when a driftwood will collide against the lower end section of the outerboard 7 under sailing to cause kickup, the driftwood is passed below the outerboard machine through a small rotary stroke at the lower end section of the outerboard machine 7.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an outboard motor support device for mounting an outboard motor on the rear surface of a transom of a boat so that the outboard motor can rotate vertically.

Conventional technology outboard motors are mounted on the rear surface of the transom of the hull so as to be rotatable in the vertical direction, as shown in, for example, Japanese Unexamined Patent Publications No. 57-41293 and No. 60-113797.
When a ship is moored or landed, the outboard motor is sometimes tilted up for storage. Also, by mounting the outboard motor on the rear of the transom so that it can rotate vertically, even if driftwood etc. hits the bottom end of the outboard motor while sailing, the outboard motor will not be damaged. The machine rotates upwards, creating a so-called kick-up effect, which cushions the impact and allows it to pass through driftwood, etc.

Problems to be Solved by the Invention Even with the above-mentioned side support device, the pivot point of the outboard motor is fixedly set at the upper end of the rear surface of the transom.
When the outboard motor kicks up, the rotation stroke of the lower end of the outboard motor is large, that is, unless the lower end of the outboard motor rotates with a large stroke, driftwood, etc. cannot easily pass through. It has been pointed out that when the outboard motor is tilted up or kicked up, the upper end of the outboard motor largely intrudes into the inside of the hull, resulting in a problem in which the effective nucleation of the stern is narrowed.

SUMMARY OF THE INVENTION Therefore, the present invention provides an outboard motor support device IT that allows the outboard motor to be tilted up and kicked up without a large rotational stroke.

Means for Solving the Problem A pair of left and right guide brackets are protruded from the rear surface of the transom, and these guide brackets have at least one of the upper and lower guide rails that are offset in the longitudinal direction of the hull. The upper guide rail is oriented vertically.

On the other hand, upper and lower guide rollers are attached to both sides of the support bracket that anchors and fixes the outboard motor, and these upper and lower guide rollers can freely slide vertically on the corresponding upper and lower guide rails. The outboard motor is rotatably mounted by engaging with the shaft.

Operation When the outboard motor is tilted up or kicked up, the outboard motor rotates upward while sliding upward along the arc of the guide rail of the guide bracket.

Example Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

In Figures 1 to 3, reference numeral 1 denotes a hull, from which a pair of left and right guide brackets 3 are protruded from behind a transom 2 at the rear. These guide brackets 3 are provided with arc-shaped upper and lower guide rails 4 and 5 that are offset in the longitudinal direction of the hull and formed in the vertical direction.

The upper and lower kite rails 4 and 5 are formed so as to be tilted backwards, and the lower guide rail 5 is set to have a smaller inclination angle than the upper guide rail 4. In this embodiment, both the upper and lower guide rails 4 and 5 are formed as arc-shaped slits. Reference numeral 6 denotes a substantially U-shaped support bracket, on which the outboard motor 7 is fixedly attached to the upper edge of the center of the rear wall.

Upper and lower guide rows are provided on both sides of the support bracket 6.
y 9 and 10 are supported by p-axis on support shafts 9 a and 10 m, and these upper and lower guide rows? 9.10, the support bracket 6 is slidably engaged with the upper and lower guide rails 4 and 5 in the vertical direction, and the support bracket 6 is attached to the guide bracket 3.
It is attached so that it can rotate freely.

11 is a chill I cylinder whose cylinder bottom is pivotally supported at the lower center of the rear surface of the transom 2, and whose rod end is connected to the upper center of the support bracket 6; 12 is a recess formed at the upper center of the rear surface of the transom 2; The upper end of the outboard motor 7 is partially received therein so that the outboard motor 7' can be placed as close to the transom 2 as possible.

According to the apparatus of the above embodiment, under normal conditions, the outboard motor 7 is in the state shown by the solid line in FIG.
The lower guide rollers 9 and 10 are engaged with the lower toes of the upper and lower guide rails 4 and 5, and the screw 7a is submerged below the water surface. During sailing, due to the forward thrust of the outboard motor 7, the lower guide roller 10 pushes the lower toe of the lower guide rail 5 toward the front of the hull, and the upper guide roller 9 attempts to move toward the rear of the hull. Since the upper guide rail 4 stands upward, both the upper and lower guide rollers 9 and 1° are prevented from moving in the longitudinal direction of the hull. As a result,
Outboard@7 will not fall backwards. When going astern, since the inclination angle of the lower guide rail 5 is small, the lower guide roller 10 moves toward the rear of the hull due to the backward thrust, and the lower end of the outboard motor 7 tries to flip up. The relief pressure of the hydraulic circuit acts as a reverse lock to prevent the outboard motor 7 from jumping up rearward.

When the outboard motor 7t is tilted up and stored when the ship is moored or landed, the support bracket 6 receives a force that pushes it diagonally upward by extending the tilt cylinder 11. Due to this push-up force, the upper and lower guide rows 2
9, 10d It rises along the upper and lower guide rails 4 and 5, but both the upper and lower kite rails 4 and 5 are tilted backwards.
However, since the lower guide rail 5 has a small slope angle, the lower end of the outboard motor 7 is rotated toward the rear of the hull via the support bracket 6, and the entire outboard motor 7 is lifted up. Then, tilt it up and store it as shown by the chain line in Figure 1. The outboard motor 7 is fixed in the tilted-up state by an oil lock of the tilt cylinder 11 or by a separately provided stopper (not shown). Outboard motor 7
When the outboard motor 7 is to be put into use, the hydraulic oil in the tilt cylinder 11 is drained, and the outboard motor 7 returns to the position shown by the solid line in FIG. 1 under its own weight. If driftwood or the like hits the lower end of the outboard motor 7 during cruising and the outboard motor 7 kicks up, the driftwood or the like hits the lower end of the outboard motor 7.
When the pressure in the hydraulic circuit (not shown) of the tilt cylinder 110 exceeds the relief pressure, the reverse lock function is lost. For this reason, the entire outboard motor 7 is raised by an external force acting on the lower end thereof, while the lower end thereof is rotated rearward of the hull in the same way as in the case of a ditild assemblage. In this way, when kicking up, the lower end of the outboard motor 7 not only rotates outboard rearward, but also the outboard motor 7 as a whole rises along the upper and lower guide rails 4 and 5. Even with a small rotation stroke of the lower end of the outboard motor 7, driftwood or the like can be easily passed through. After the outboard motor 7 is kicked up, it returns to its original position due to its own weight.

In the embodiment described above, the upper and lower kite rails 4 and 5 are formed as slits, but they may also be formed in a channel shape or a T-shape in cross section to hold the corresponding guide rollers. As shown in FIG. 1(b), the slits 4 and 5 can be formed into any shape, and can be freely set to tilt forward or backward depending on the set movement locus of the outboard motor.

Effects of the Invention As described above, according to the present invention, the guide bracket has an upper part,
The upper and lower guide rollers of the support bracket are engaged with the upper and lower kite rails to form lower guide rails, so that when the outboard motor is tilted up or kicked up, the lower end of the outboard motor is Since the entire outboard motor rises while rotating rearward, it is possible to easily pass through driftwood or the like even with a small rotation stroke of the lower end of the outboard motor, especially during kick-up. In addition, since the outboard motor can be raised with rotation in this way, it is possible to reduce the amount of the outboard motor entering the inside of the hull when tilting up, even if the boat has a high bulwark at the stern. By setting the inclination angles of the upper and lower guide rails, the intrusion into the inside of the hull can be reduced, and the effective space at the stern can be expanded, which has a great practical effect.

[Brief explanation of drawings]

1(a) and 1(b) are side views showing one embodiment of the present invention, FIG. 2 is an exploded perspective view of the same, and FIG. 3 is a sectional view showing the relationship between a guide bracket and a support bracket. DESCRIPTION OF SYMBOLS 1... Hull, 2-- Transom, 3... Guide bracket, 4... Upper guide rail, 5... Lower guide rail, 6... Support bracket, 7... Outboard motor,
9... Upper guide roller, 10... Lower guide roller, 11... Tilt cylinder.

Claims (1)

[Claims] (1) A pair of left and right guide brackets are provided protruding from the rear surface of the transom, and at least the upper guide rail of the lower guide rail is oriented in the vertical direction. At the same time, upper and lower guide rollers are attached to both sides of a support bracket that anchors and fixes the outboard motor, and these upper and lower guide rollers are slidably engaged with the corresponding upper and lower guide rails in the vertical direction. In addition, an outboard motor support device is characterized in that the outboard motor is rotatably mounted thereon.