JPH11334693A - Tilt device for outboard engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve durability of wiring of an electric motor for tilting as well as improve wiring appearance. SOLUTION: The tilt device for outboard engine is provided with a first bracket 3 to be fixed to a ship body, a second bracket 5 pivotally supported by the first bracket 3 via a tilt axis 4 which can rotate in the vertical direction, a propelling unit pivotally installed to the second bracket to be movable in the horizontal direction, a hydraulic cylinder 17 to be connected to the second bracket 5 and the first bracket 3, an electric motor 20 for driving the hydraulic cylinder 17, and a pick-up hole 3a formed in the first bracket 3 near the tilt axis 4. A wiring 21 for the electric motor 20 is led from the pick-up hole 3a so as to be engaged with the propelling unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention belongs to the technical field of a tilt device for an outboard motor.

[0002]

2. Description of the Related Art In an outboard motor, a pair of right and left clamp brackets is attached to the rear part of a hull, and a swivel bracket is pivotally supported between the clamp brackets via a tilt shaft so as to be vertically rotatable. The steering bracket is rotatably supported in the horizontal direction via a vertical shaft, and the propulsion unit is supported by the steering bracket. Oil is supplied to and discharged from the hydraulic cylinder by a hydraulic pump, and the outboard motor can be tilted up or down by expanding and contracting the hydraulic cylinder.

Conventionally, as shown in FIG. 6, a wiring 21 of the electric motor 20 is taken out from an extraction hole 3a formed in the clamp bracket 3 and is locked by a clamp 22 fixed to the cowling 11 of the engine. Thereafter, it is guided into the cowling 11 and is connected to the energizing direction switching relay.

[0004]

However, in the above-described conventional wiring take-out structure, since the position of the tilt shaft 4 which is the center of rotation and the take-out hole 3a of the wiring 21 are far apart, the steering or tilt operation can be performed. Therefore, it is necessary to ensure a sufficient length of the slack portion T, and therefore, there is a problem that the wiring is loosened between the relatively sliding clamp bracket and the swivel bracket, and the wiring is worn. There is a problem that the sagging wiring becomes obstructive.

The present invention solves the above-mentioned conventional problems, and provides an outboard motor shift device capable of improving the durability of wiring of an electric motor for tilting and improving the appearance of wiring. The purpose is to do.

[0006]

According to a first aspect of the present invention, a first bracket 3 fixed to a hull 2 and a first bracket 3 are attached to the first bracket via a tilt shaft 4. Second bracket 5 pivotally supported in a direction
A propulsion unit 9 rotatably mounted on the second bracket in a horizontal direction, a hydraulic cylinder 17 connected to the second bracket and the first bracket, and an electric motor for driving the hydraulic cylinder. A motor 20 and an extraction hole 3a formed in the first bracket proximate to the tilt shaft 4. The wiring 21 of the electric motor 20 is led out from the extraction hole 3a and locked to the propulsion unit 9. The invention according to claim 2, wherein a concave groove 3b is formed inside the first bracket, and the wiring 2 is formed in the concave groove.
1 is inserted and fixed by the clamp 26.

The numbers added to the above configuration are compared with the drawings for easy understanding of the present invention, and the present invention is not limited by these.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing an example of an outboard motor to which the present invention is applied. The outboard motor 1 includes a pair of left and right clamp brackets 3 that are detachably attached to a rear portion of the hull 2, and a swivel bracket 5 that is pivotally supported between the clamp brackets 3 via a tilt shaft 4 so as to be vertically rotatable. A bearing 7 provided at the lower end of the through hole of the swivel bracket 5, a steering bracket 6 pivotally supported in a horizontal direction via a steering shaft 6a supported by the bearing 7, and a steering bracket 6 Mount 8
And a propulsion unit 9 supported via the

The propulsion unit 9 has an upper case 10 supported by the steering bracket 6, an engine (not shown) is mounted on an upper part of the upper case 10, and a lower cowling 11 for covering a lower part of the engine is provided. An upper cowling 12 that covers the upper portion of the engine is detachably attached to the lower cowling 11. Further, a lower case 13 is connected to a lower portion of the upper case 10, and the upper case 10 and the lower case 13 constitute a casing of the propulsion unit 9. In addition, 1
Reference numeral 4 denotes a propeller mounted on the lower case 13.

2 to 5 show an embodiment of a tilt device for an outboard motor according to the present invention. FIG. 2 is an exploded perspective view of a main part of FIG.
3 is a front view of the outboard motor of FIG. 1 as viewed from the X direction, FIG. 4 is an enlarged side view of the outboard motor of FIG. 3, viewed from the Y direction, and FIG. 5 is an enlarged side view of the outboard motor of FIG. In each of the drawings, the same components are denoted by the same reference numerals and description thereof may be omitted.

FIG. 2 shows a pair of clamp bracket 3, tilt shaft 4, swivel bracket 5,
A steering bracket 6, a steering shaft 6a, a bearing 7, a mount 8, and an upper case 10 are shown. The swivel bracket 5 is formed with a cylindrical through hole 5 a, into which the steering shaft 6 a of the steering bracket 6 is inserted and supported by a bearing 7. Upper case 10
Is fixed to a bearing 7 via a mount 8.
Furthermore, the lower end is supported by the clamp shaft 3 by the support shaft 15.
A hydraulic cylinder 17 pivotally supported by the hydraulic cylinder 17, a hydraulic pump 19 for supplying and discharging oil to and from the hydraulic cylinder 17, and a hydraulic pump 19
An electric motor 20 for driving the motor and wiring 21 of the electric motor 20 are shown.

3 to 5, a wiring 21 for an electric motor 20 has a groove 3 formed in a clamp bracket 3.
b, and is fixed by a plurality of clamps 26 and bolts 26a. An extraction hole 3a is formed in the clamp bracket 3 near the tilt shaft 4 so that the wiring 21
Is pulled out to the outside from the extraction hole 3a of the clamp bracket 3, and the wiring 21 led out is locked by a resin clamp 22 fixed to the bottom of the lower cowling 11, and is inserted into the lower cowling 11 via a seal member 23. Has been introduced.

A wiring 24 for a trim sensor is provided in the swivel bracket 5. The wiring 24 is led out from the swivel bracket 5 to the outside through the front part of the clamp bracket 3. And are locked to the resin clamp 22. In FIG. 3, reference numeral 16 denotes a support shaft for pivotally supporting the upper end of the hydraulic cylinder 17 on the swivel bracket 5, and reference numeral 25 denotes a connector for washing the engine with water, which is fixed to the resin clamp 22.

[0014]

As is apparent from the above description, according to the first aspect of the present invention, since the extraction hole of the wiring of the tilting electric motor is close to the tilt axis, the tilt operation can be performed with the shortest wiring. According to the second aspect of the present invention, the aesthetic appearance of the wiring of the outboard motor can be improved, and the wiring does not interfere with the swivel bracket that rotates, thereby improving the durability of the wiring. Can be.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of an outboard motor to which the present invention is applied.

FIG. 2 is an exploded perspective view of an essential part showing one embodiment of a tilt device for an outboard motor according to the present invention.

FIG. 3 is a front view of the outboard motor of FIG. 1 viewed from an X direction.

FIG. 4 is an enlarged side view as viewed from a Y direction in FIG. 3;

FIG. 5 is an enlarged side view as viewed from a Z direction in FIG. 3;

FIG. 6 is a side view showing a conventional wiring structure.

[Explanation of symbols]

2 ... hull 3 ... clamp bracket (first bracket), 3a ...
Take-out hole, 3b ... concave groove 4 ... tilt shaft 5 ... swivel bracket (second bracket) 9 ... propulsion unit 17 ... hydraulic cylinder 20 ... electric motor 21 ... wiring

Claims (2)

[Claims] 1. A first bracket fixed to a hull, a second bracket pivotally supported by the first bracket via a tilt shaft so as to be vertically rotatable, and a second bracket attached to the first bracket. A propulsion unit mounted rotatably in the horizontal direction,
A hydraulic cylinder connected to the second bracket and the first bracket, an electric motor for driving the hydraulic cylinder, and an extraction hole formed in the first bracket in proximity to the tilt shaft. A tilting device for an outboard motor, wherein a wiring of the electric motor is led out of an extraction hole and locked to the propulsion unit. 2. A tilt device for an outboard motor according to claim 1, wherein a groove is formed inside the first bracket, and the wiring is inserted into the groove and fixed by a clamp. .