JPH01160794A - Tilt mechanism for outboard and inboard engine - Google Patents

Abstract

PURPOSE:To make it possible to facilitate the vertical tilt operation of a drive unit on the outboard side by disposing a tilt switch for controlling the operation of a tilt mechanism, on the outer wall of a part which is on the outboard side of a transom board for an inboard and outboard engine. CONSTITUTION:A gimbal ring 14 is supported rotatably in the lateral direction to a gimbal housing 12 which is secured to a transom board 10, and a swivel bracket 16 is supported to the gimbal ring 14 through the intermediary of a pin 18 so as to be rotatable in the vertical direction. A tilt switch 42 is disposed on the outer wall of the upper part of the gimbal housing 12, a hydraulic cylinder 30 is actuated when the tilt switch 42 is manipulated, thereby a drive unit 22 is vertically tilted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tilt mechanism for an inboard/outboard motor, and more particularly to an arrangement structure of a tilt switch for operating the tilt mechanism.

[Prior Art] Generally, in a tilt mechanism for an inboard/outboard motor, a tilt switch for operating the tilt is provided in the vicinity of the driver's seat inside the boat. Therefore, for example, if it is necessary to tilt the drive unit up or down after a ship is unloaded, the operator must get on and off the ship and operate the tilt switch each time, resulting in very poor work efficiency. For example, it may be possible to install a tilt switch near the transom board, but this would increase the number of man-hours required to equip the ship, add holes, and route lead wires.

[Problems to be Solved by the Invention] The present invention has been made in view of the problems of the prior art, and its purpose is to allow workers to easily operate from the outside of the ship without having to get on and off the ship. To provide a tilt mechanism for an outboard motor, which allows a drive unit to be tilted up and down without increasing the number of man-hours required for maintenance of a ship.

[Means for Solving the Problems] In order to achieve this object, the present invention provides a tilt mechanism for tilting a drive unit of an inboard/outboard motor with respect to a transom unit fixed to a transom board. The tilt switch to be operated is placed on the outer wall of the outboard section from the transom board of the inboard and outboard motor.

[Function] By locating the tilt switch on the outer wall of the outside part of the boat rather than on the transom board of the inboard/outboard motor, the tilt switch can be easily reached from outside the boat, eliminating the need for workers to get on and off the boat. The drive unit can be tilted up and down without any trouble.

[Example] The present invention will be explained below based on embodiments shown in the drawings.

First, FIG. 1 shows the overall configuration of the outboard portion of an inboard/outboard motor. Gimbal housing 1 on transom board lO
2 is fixed, a gimbal ring 14 is supported to be rotatable in the left and right directions relative to the gimbal housing 12, and a swivel bracket 16 is supported to be rotatable up and down with respect to the gimbal ring 14 via a pin 18. This constitutes a transom unit 20 as a whole. By coupling the upper casing 38 of the drive unit 22 to the swivel bracket 16, the drive unit 22 is supported relative to the transom board 10 so as to be swingable in the left and right and up and down directions.

A hose connection portion 24 is provided at the lower end of the gimbal housing 12.
An inboard hose (not shown) extending from inside the ship is connected to this hose connecting portion 24, and an inboard hose 28 communicating with this inboard hose is connected to this hose connecting portion 24. The inboard hose 28 is connected to a pair of hydraulic cylinders 30 located on both sides of the drive unit 22, and the hydraulic cylinders 30 are rotatably supported by the cymbal ring 14 via a pin 32, and the pistons of the hydraulic cylinders 30 34 is rotatably supported on the side surface of the upper casing 38 via a pin 36. Note that the reference numeral 40 is a propulsion propeller.

Further, a tilt switch 42 is disposed on the upper outer wall of the gimbal bousing 12, and when the tilt switch 42 is operated, a hydraulic cylinder (not shown) is actuated, and the swivel bracket 16 and thus the drive unit 22 are tilted up and down. Reference numeral 44 is a switch knob.

FIG. 2 shows the detailed structure of the tilt switch 42. The case 46 of the tilt switch 42 is housed in the storage hole 48 formed in the cymbal housing 12, and the mounting screw 50 for fixing the tilt switch 42 is also arranged inside the outermost diameter of the case 46. The overall aesthetic appearance has been improved. That is, the case 46 of the tilt switch 42 has a substantially bowl-shaped recess 52 in its upper part, and the switch knob 4 is located in the center of this recess 52.
4, and a pair of mounting screws 50 are also accommodated in this recess 52. A shaft 54 of the switch knob 44 passes through the case 46 and is sealed by an oil seal 56. In addition, the lower part of the case 46 is provided with the storage hole 48.
It is sealed by an O-ring 58, and is configured to withstand use even when submerged in water.

The shaft 54 has a roller 60 at its lower part, and a contact 62 is provided on the lower surface of the roller 60. Further, this roller 60 is provided with a daytent mechanism consisting of a spring 64 and a ball 66 urged upward by this spring 64, and when the spring 64 engages in a groove 68 on the inner surface of the case 46, the daytent function is performed. It is configured to perform. A terminal block 70 having a contact pad 2 facing the contact 62 of the roller 60 is provided fixed to the case 46 so that the contact 72 and the contact 62 can come into contact with each other. Reference numeral 74 indicates a return spring for returning the shaft 54 and thus the switch knob 44 to the neutral position.

Next, referring also to FIG. 3.4, a structure for fixing the case 46 of the tilt switch 42 to the gimbal housing 12 will be described. First, the case 46 of the tilt switch 42 has a shank portion 76 having a smaller diameter at the lower side than the above-mentioned upper bowl-shaped portion, and this shank portion 76 is formed into a U-shaped cross section as shown in FIG. 3.4. There is. A mounting plate 78 is fitted onto a part of the outer periphery of the shank portion 76 at its curved portion 80, and the pair of mounting screws 50 are screwed into the mounting plate 78 via the case 46. On the other hand, storage hole 4 for Uzink 12 on the gimbal
A substantially annular protrusion 82 is integrally formed near the opening of 8, and a pair of notches 84 are formed in this protrusion 82.

When fixing the case 46, first install the mounting screw 5.
0 is temporarily screwed onto the plate 78 through the case 46, and in that state, it is installed using the protrusions 86 at both ends of the plate 78.
is aligned with the notch 84 of the protrusion 82 and the protrusion 82
(see Figure 3), then rotate the case 46 clockwise or counterclockwise to shift the protrusion 86 from the notch 84 and bring it into contact with the bottom of the protrusion 82, and in that state. Thoroughly screw together the mounting screws 50. As a result, the protrusion 82 of the storage hole 48 is held between the bottom surface of the bowl portion of the case 46 and the top surface of the protrusion 86 of the mounting plate 78, and as a result, the case 46 has sufficient strength to support the gimbal. Storage hole 48 of housing 12
It will be fixed inside.

In addition, when removing the tilt switch 42 from the gimbal housing 12, loosen the mounting screw 50 and rotate the case 46. Then, rotate the plate 78 accordingly and insert the protrusion 86 into the notch of the projection 82. 84 and thereby pull out the entire tilt switch 42 from the storage hole 48.

In particular, according to this embodiment, the tilt switch 42 is mostly housed in the storage hole 48 of the gimbal housing 12, and the mounting screw 50 is housed inside the outermost diameter of the case 46 of the tilt switch 42, so that the tilt Even if the switch 42 is located at a location that is easy to see from the outside, its structure is extremely simple, and therefore the overall aesthetic appearance of the inboard/outboard motor is not impaired.

Further, even though the mounting screw 50 is housed in the case 46 of the tilt switch 42, it is easy to tighten or loosen it from the outside, and the plate 78 can be mounted using the notch 84 of the protrusion 82 of the storage hole 48. Since the entire tilt switch 42 can be pulled out simply by aligning the position, even if it becomes necessary to replace the switch after installation, the operation is extremely easy.

In addition, since the plate 78 is fitted to the shank part 76 which has a U-shaped cross section, even if the mounting screw 50 is accidentally removed when removing the tilt switch, the case 46, that is, the shank part 76 cannot be rotated. During installation, the plate 78 also rotates accordingly, and the installation and replacement work of the tilt switch can be carried out reliably.

[Help Effect] As explained above, according to the present invention, it is possible to easily tilt the drive unit up and down from the outside of the ship without the need for workers to get on and off the ship, There is an excellent effect that there is no need to increase the number of seats 4.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an inboard/outboard motor which is an embodiment of the tilt mechanism of the drive unit according to the present invention, FIG. 2 is a cutaway side view showing an enlarged tilt switch in the same embodiment, and FIG.
This figure is a sectional view taken along the line m--■ in FIG. 2, showing the switch installed in a working state, and FIG. 4 is a sectional view showing the completed state of installation at the same position as in FIG. 3. 10...Transom board 12...Fist gimbal housing 20...Transom unit 22...Drive unit 42...Tilt switch 48...Storage hole 78...Mounting plate 82...Protrusion agent Patent Attorney Yoshiyuki Inaba No. 4 0ri bb

Claims (1)

[Claims] (1) In a tilt mechanism that tilts the drive unit of the inboard/outboard motor relative to the transom unit fixed to the transom board, the tilt switch that operates the tilt mechanism is located on the outer wall of the outboard section of the inboard/outboard motor from the transom board. Tilt mechanism for inboard and outboard motors.