JPH0615836Y2 - Tilt-up device for outboard motors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a tilt-up device for an outboard motor.

(Prior Art) In an outboard motor, an engine 2 is mounted on an upper portion of a vertically long casing 1 and is covered with an engine cover 3 as shown in FIG. 5, and an oil chamber is formed below a gear case 4 connected to the lower portion. The outboard motor body 7 having the propeller 5 behind it and the skeg 6 at the bottom thereof is provided, and the swivel bracket 8 attached to the front upper part of the outboard motor body 7 has a hull 9
A clamp bracket 10 fixed to the tail portion of the is pivotably attached upward by a shaft 11 so that it can be tilted up.

In the conventional tilt-up device, as shown in FIGS. 6 and 7, a plurality of engaging portions 13 in which a lower end of a tilt stopper 12 whose upper end is pivotally supported by a swivel bracket 8 are formed inside a clamp bracket 10 are provided. Step engaging steps 13a, 1
The outboard motor main body 7 is held in the tilted-up state by being hooked on any one of 3a.

The tilt stopper 12 has an operation lever 12a extending rearward, and the operation lever 12a is held to engage and disengage the engaging portion 13.

(Problems to be Solved by the Invention) However, in the conventional tilt-up device described above, when tilting down, the operation lever 12a is operated by one hand in the direction of the arrow in FIG. However, there was a problem that the above operation with both hands on the sea with waves and at the end of the hull was extremely dangerous. Further, when the gear case 4 hits against an underwater obstacle and is flipped up, the tilt stopper 12 is once disengaged from the engaging portion 13, and then the tilt stopper 12 is at or near the uppermost engaging step portion 13 a of the engaging portion 13. When engaged with, there is a problem that not only is the propeller 5 in a state of aerial rotation to be extremely dangerous, but also the engine 2 is damaged due to no-load operation.

The present invention focuses on the above-mentioned problems of the prior art and aims to improve the problems.A reverse lock mechanism equipped on the outboard motor is provided to prevent the outboard motor from jumping up when the vehicle is in reverse. The tilt stopper is operated in conjunction with the on / off operation of the reverse lock operation lever to facilitate tilt operation, and the tilt stopper is engaged even when the outboard motor body collides with an obstacle and is flipped up. (EN) A tilt-up device for an outboard motor, in which the propeller does not rotate in the air by being engaged with the portion.

[Constitution of device]

(Means for Solving Problems) In order to solve the problems of the above-described conventional technology, the present invention allows a swivel bracket that supports an outboard motor body to be pivoted upward on a clamp bracket that is fixed to the tail of a hull. In an outboard motor which is pivotally supported on the swivel bracket, a reverse lock operation lever is provided on the swivel bracket so that it can be turned on and off, and the reverse lock operation lever is used as a reverse lock arm that locks the swivel bracket through a connecting rod. A tilt stopper that is connected to the swivel bracket and is engageable with an engaging portion of a clamp bracket while the reverse lock arm is rotatably provided between a lock position and a release position by turning the reverse lock operation lever on and off. Is rotatably supported around the pivot, and is installed between the tilt stopper and the connecting rod. A traction spring is bridged, and the traction spring is on the side opposite to the pivot when the reverse operation lever is on and tilted down, and on the pivot when the reverse operation lever is off and tilted up. On the other hand, the tilt stopper is arranged so as to be selectively applied with spring forces on the opposite side and the engaging side of the tilt stopper.

(Operation) With the above structure, when the tilt-down is performed, the tilt stopper can be disengaged from the engaging portion and tilted down by operating the reverse lock operation lever in the reverse lock-on direction, and the outboard motor body is repelled. At this time, since the tilt stopper is rotated by the spring in the direction away from the engaging portion, the tilt stopper does not engage with the engaging portion even when the outboard motor body is lowered.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.
The same members as those shown in FIGS. 7 and 7 are designated by the same reference numerals for description.

The reverse lock mechanism includes a reverse lock operation lever 15 pivotally supported on the swivel bracket 8 by a shaft 14.
And a lock hole 17 which is pivotally supported by a shaft 16 on the lower part of the swivel bracket 8 and arranged on the clamp bracket 10 side.
A reverse lock arm 19 that engages with a stopper rod 18 attached to the rear lock arm 19 and holds a reverse lock state, and a connection that connects the reverse lock operation lever 15 and the reverse lock arm 19 by relaying a rotary arm 20 in between. It is composed of rods 21 and 22. Therefore, when the reverse lock operation lever 15 is pushed downward in FIG.
As shown in the figure, when the reverse lock is released and the reverse lock operating lever 15 is pushed upward in FIG. 2, the return spring 23 causes the reverse lock arm 19 to be locked.

In this invention, the swivel bracket 8 has a tilt stopper 25 whose upper end is pivotally supported by a shaft 24 and the connecting rod 22.
A traction spring 26 is tensioned to the intermediate portion 22a of the traction spring 26. The traction spring 26 is located on the right side of the tilt stopper 25 in the figure when reverse locked (FIG. 1), and when the reverse lock is released (FIG. 2). Is located on the left side. When tilting down, the lower end of the tilt stopper 25 is slid along the inner edge 10a of the clamp bracket 10 by the urging force of the pulling spring 26.

In the drawing, 27 is a clamp screw for fixing the clamp bracket 10 to the transom of the hull 9.

Next, the operation will be described.

FIG. 1 shows the state of reverse lock-on, which is during normal operation of the outboard motor. At this time, the reverse lock operation lever 15 is engaged with the stopper rod 18 and is in the reverse lock state.

FIG. 2 shows a state of reverse lock-off, and shows an operating state before tilting up. That is, the reverse lock operation lever 15 is pushed downward, and thereby the connecting rods 21 and 22 are pulled to pull the reverse lock arm 19.
Rises and disengages from the stopper rod 18, and the outboard motor body 7
Can be tilted up. At this time, the connecting rod 22
The traction spring 26 is moved to the left side of the tilt stopper 25 due to the rise.

FIG. 3 shows a state in which the outboard motor body 7 is tilted up. Since the reverse lock operation lever 15 is in the off position, the tilt stopper 25 is rotated clockwise in the figure by the traction spring 26. The end portion thereof rises along the engaging portion 13 of the clamp bracket 10 and automatically engages with the engaging step portion of the engaging portion 13 to be in the tilt-up state.

In order to tilt down from this tilt-up state, the reverse lock operation lever 15 is rotated upward to the ON position as shown in FIG. 4, and the tilt stopper 25 is rotated counterclockwise in the figure by the traction spring 26. The lower end of the outboard motor body 7 is located along the inner edge 10a of the clamp bracket 10 on the side opposite to the engaging portion 13, and when the outboard motor body 7 is tilted down, the tilt stopper 25 goes down along the inner edge 10a and tilts. It is not necessary to manually operate the stopper 25 so that it does not engage the engaging portion 13.

The above operation is a series of tilt-up and tilt-down operations, but when the outboard motor body 7 collides against an underwater obstacle and is flipped up while the reverse lock operation lever 15 is in the on state, the fourth illustration is shown. Therefore, the tilt stopper 25 never engages with the engaging portion 13,
Immediately after the obstacle is resolved, the gear case is submerged, the propeller 5 is prevented from idling in the air, and the propeller 5 shifts to the running operation state.

[Effect of device]

As described above, according to the present invention, the reverse lock operation lever is provided on the swivel bracket so that the reverse lock operation lever can be freely turned on and off, and the reverse lock operation lever is connected to the reverse lock arm for locking the swivel bracket through the connecting rod. The reverse lock arm is rotatably provided between a lock position and a release position by turning the operation lever on and off, while a tilt stopper that is engageable with an engaging portion of the clamp bracket is pivotally provided around the pivot shaft on the swivel bracket. A traction spring is bridged between the tilt stopper and the connecting rod, and the traction spring is on the side opposite to the pivot when the reverse operation lever is turned on and tilted down. When the reverse operation lever is turned off and tilted up, Since it is arranged so as to be displaced to the engagement side and selectively apply the spring force on the anti-engagement side and the engagement side to the tilt stopper, there is no need to manually rotate the tilt stopper when tilting down, Therefore, it is possible to safely perform the tilt operation on the sea or the like. Further, it is inevitable to perform tilt-up by turning off the reverse lock, and since the tilt stopper is automatically operated during the operation, there is no erroneous operation, and the reliability of the device can be significantly improved. it can. Further, since it can be configured by utilizing the reverse lock mechanism which has been conventionally equipped, it does not become structurally complicated and the cost does not increase. Even if the outboard motor body collides with an obstacle and is flipped up, the tilt stopper remains in a state in which it cannot engage with the engaging portion, so that the propeller does not move while the outboard motor body is still up. The inconvenience of idling is eliminated, and there are various effects such as protection of the engine as well as prevention of danger.

[Brief description of drawings]

1 to 4 are explanatory views of a main part showing an operating state of the present invention. FIG. 1 is a reverse lock-on state, FIG. 2 is a reverse lock-off state, and FIG. 3 is a tilt-up state. The figure shows the tilt-down state, FIG. 5 shows a side view showing a general outboard motor, FIGS. 6 and 7 show the operating state of a conventional tilt-up device, and FIG. 6 shows the normal operation. , FIG. 7 shows a tilt-up state. 2 ... Engine, 4 ... Gear case, 5 ... Propeller, 7 ... Outboard motor body, 8 ... Swivel bracket, 10 ... Clamp bracket, 13 ... Engaging portion, 15 ... Reverse lock operating lever, 19 ... Reverse lock arm, 20 ... Rotating arms 21, 22, ... Connection rods, 23 ... Return springs, 25 ... Tilt stoppers, 26 ... Traction springs.

Claims (1)

[Scope of utility model registration request] 1. An outboard motor in which a swivel bracket supporting an outboard motor body is pivotally supported upward to a clamp bracket fixed to a tail portion of a hull so as to be tilted up, and the swivel bracket is reversed to the swivel bracket. A lock operation lever is provided for on / off operation freely, and this reverse lock operation lever is connected to a reverse lock arm that locks a swivel bracket through a connecting rod, and the reverse lock arm is set to a lock position by an on / off operation of the reverse lock operation lever. A tilt stopper is provided rotatably between the release position and the swivel bracket, and a tilt stopper engageable with an engaging portion of a clamp bracket is rotatably supported around a pivot shaft, and is provided between the tilt stopper and the connecting rod. A traction spring is bridged over the traction spring, and this traction spring turns on the reverse operation lever. It is displaced to the anti-engagement side with respect to the pivot at the time of operation and tilt down, and to the engagement side with respect to the pivot at the time of turning off the reverse operation lever and at the time of tilt up to the anti-engagement side and engagement with the tilt stopper. A tilt-up device for an outboard motor, wherein the tilt-up device is arranged so as to selectively apply a spring force on the side.