JPH0558393A - Outboard motor - Google Patents

Abstract

PURPOSE:To facilitate detection of the opening of a throttle, to shorten the length of a wiring connected to a sensor, and to facilitate assembly of a steering handle by disposing a throttle opening detecting sensor and a signal generating means to &-steering handle. CONSTITUTION:An outboard motor body 1 is provided with an engine E having a throttle valve and supported vertically rockably around a horizontal rock shaft 19. The throttle valve is operated through a transmission means 39 by a throttle valve operating part 37 and supported to a steering handle 13. Further, based on detecting signals from a sensor to detect the rocking angle of the outboard motor body 1 and a sensor 46 to detect the opening of a throttle valve 3, a signal generating means 50 is operated. In above constitution, the throttle opening detecting sensor 46 and the signal generating means 50 are respectively disposed to the steering handle 13. This constitution facilitates detection of a throttle opening, shortens the length of a wiring, and facilitates assembly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outboard motor, and more particularly to a signal generating means such as a buzzer for preventing an excessive rotation of the engine which occurs when the throttle valve is opened while the outboard motor body is tilted up. Relates to an outboard motor equipped with.

[0002]

2. Description of the Related Art An outboard motor mounted on a rear portion of a hull via a stern bracket has its main body supported so as to be vertically swingable around a horizontal axis, and the outboard motor body is tilted up when traveling in shallow water. This prevents the propeller from touching the bottom of the water.

[0003]

By the way, when the outboard motor body is tilted up, the propeller approaches the surface of the water. Therefore, when the throttle valve is opened to increase the output of the engine, the propeller entrains air and the engine is in a state of idling. May be. Therefore, when the throttle valve is opened beyond a certain opening while the outboard motor body is tilting up, a buzzer or the like is operated to notify the driver.

It is an object of the present invention to secure a mounting space for the signal generating means mounted on the outboard motor and to eliminate the complexity of the assembling work.

[0005]

In order to achieve the above object, the present invention provides an outboard motor body which is equipped with an engine having a throttle valve and is supported so as to be vertically swingable around a horizontal swing axis. A throttle valve operating portion for opening and closing the throttle valve; a transmitting means for transmitting the operation of the throttle valve operating portion to the throttle valve; and at least a part of the throttle valve operating portion and the transmitting means provided in the outboard motor body. Steering handle that supports the vehicle, a swing angle detection sensor that detects the swing angle of the outboard motor body, a throttle opening detection sensor that detects the opening of the throttle valve, a swing angle detection sensor, and a throttle opening. An outboard motor comprising signal generating means that operates based on an output signal of a detection sensor, wherein the throttle opening detection sensor and the signal generating means are provided on a steering wheel. And it features.

In addition to the above-mentioned first feature, the present invention also provides:
The transmission means includes a rod provided on the steering handle, and the throttle opening detection sensor is connected to the rod.
It is a feature of.

In addition to the above-mentioned first or second feature, the present invention has an internal space in which the steering wheel is opened downward, and the throttle opening detection sensor and the signal generating means are arranged in this internal space. This is the third feature.

In addition to the above-mentioned third feature, the present invention also provides:
A fourth feature is that the throttle opening detection sensor and the signal generating means are supported by a lid member that closes the internal space of the steering wheel.

Further, the present invention provides an outboard motor body supported by an engine having a throttle valve so as to be vertically swingable about a horizontal swing axis, and a hydraulic cylinder for vertically swinging the outboard motor body. Device, hydraulic cylinder device operating part for operating the hydraulic cylinder device, throttle valve operating part for opening and closing the throttle valve, transmission means for transmitting the operation of the throttle valve operating part to the throttle valve, and the outboard motor main body A steering handle which is provided on the throttle valve and supports at least a part of the transmission means, a swing angle detection sensor which detects a swing angle of the outboard motor body, and an opening degree of the throttle valve. An outboard motor comprising: a throttle opening detection sensor; and a signal generation means that operates based on an output signal from the swing angle detection sensor and the throttle opening detection sensor, the outboard motor comprising: In that a means and a hydraulic cylinder device operating unit to the steering wheel to the fifth aspect.

In addition to the above-mentioned fifth feature, the present invention also provides:
A sixth feature is that the steering handle is supported so as to be vertically swingable with respect to the outboard motor body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 and 2, an engine E is provided in an engine room 2 above the outboard motor body 1. Engine room 2 is extension case 1
An under case 2a fixedly provided on the 0 side,
It is defined by an engine cover 2b which is detachable from the undercase 2a. A crankshaft 4 vertically arranged in an engine E equipped with a throttle valve 3.
A drive shaft 5, which is also vertically arranged, is connected to the lower end of the drive shaft 5 via a gear train 6, and the lower end of the drive shaft 5 has a propeller shaft 9 having a propeller 8 at the rear end via a bevel gear mechanism 7. Are connected. The drive shaft 5 is covered with an extension case 10, and the bevel gear mechanism 7 and the propeller shaft 9 are covered with a gear case 11 connected below the extension case 10.

A carrying handle 12 is projected from the under case 2a toward the front, and the left side surface of the carrying handle 12 is capable of vertically swinging between a use state shown by a solid line and a storage state shown by a chain line. The handle 13 is supported, and a shift lever 14 of the engine E is provided on the right side surface thereof.

The stern bracket 16 for supporting the outboard motor body 1 through a swivel case 15 provided in front of the extension case 10 has a groove portion 1 formed in an upper portion thereof.
While 6 ₁ is engaged with the stern S, it is fixed by a push screw 18 or a bolt operated by a lever 17.

Next, the outboard motor body 1 will be described with reference to FIGS.
The swing support mechanism of will be described. Stern bracket 16 is provided with a pair of left and right side plates 16 _2, the upper end portion of the swivel case 15 is vertically swingably supported on a horizontal pivot shaft 19 which is horizontally installed between the upper end of the side plates 16 _2. A pin 20 installed horizontally between the lower ends of the side plates 16 ₂ of the stern bracket 16 and a pin 2 installed on the swivel case 15.
Between 1 is a hydraulic cylinder device 22 and its output rod 22.
₁ is connected. The hydraulic cylinder device 22 has a motor 23.
The hydraulic pump 24 is integrally provided, and the output rod 22 ₁ is extended from the hydraulic cylinder device 22 by the discharge oil of the hydraulic pump 24 driven by the motor 23.
As shown in, the swivel case 15 swings upward together with the outboard motor body 1 about the horizontal swing shaft 19. Incidentally, the tilt handle 2 ₁ is provided in the engine cover 2b, and outboard motor body 1 and the like when the hydraulic cylinder device 22 has failed is used when tilting up by human power.

The outboard motor body 1 includes an upper mount portion 26.
And swivel shaft 25 via lower mount part 28
It is supported. That is, the tubular portion of the swivel case 15
15 ₁Upper and lower ends of swivel shaft 25 rotatably supported by
Each part has a frame part, and the upper frame
The pair of left and right shaft portions 26 extending rearward from the shaft portion 26₁But
The shaft portion 26 is projected.₁Mount rubber on the rear end
27 is attached. The mount rubber 27 is, for example,
Shaft 26₁It has a substantially cylindrical shape along with and matches this outer diameter
A housing recess is provided on the side of the extension case 10.
The outboard motor main body 1 side and the slide
It elastically connects to the side of the ibel shaft 25. Also swivel
On the lower end side of the shaft 25 is a center housing as a frame part.
28 ₁Is provided, and from there behind and
A pair of left and right wrapping around the extension case 10
Cover 28₂Is provided with a cover 28₂And extend
Mount rubber 29 is installed between the optional case 10 and
Has been. The mount rubber 29 is, for example, the propeller shaft 9
Is a substantially rectangular parallelepiped having a surface orthogonal to the axial direction of
The cover 28 covers the accommodation recess that matches this outer shape.₂And Ek
It is installed on the tension case 10 so that it can be held between the outboard and the outboard.
The machine body 1 side and the swivel shaft 25 side are elastically connected.
The mount rubber 29 is an extension
Front of case 10 and center housing 28₁Between
It is also possible to add to.

Both side plates 16 of the stern bracket 16₂To
Is a plurality (five in the embodiment) of the adjusting holes 16₃Is a yen
Both side plates 16 are formed in an arc shape₂Opposite adjustment holes
16 ₃The adjusting pin 30 is mounted between them. Traveling forward
Outboard motor body 1 due to thrust generated by propeller 8
Swings around the horizontal swing shaft 19 in a direction approaching the stern S
Then, the front surface of the swivel case 15 is adjusted pin 3
0, and the thrust is stern from the outboard motor body 1.
It is transmitted to the bracket 16. At that time, adjust pin
By adjusting the position of 30, the outboard motor body 1
The angle can be adjusted to an appropriate size.

As shown in FIG. 5, a tilt stop member 31 is pivotally supported by a pin 32 on one side of the swivel case 15, and the tip of the tilt stop member 31 is brought into contact with the upper surface of the stern bracket 16, The outboard motor body 1 can be held in a tilted up state.

The side plate 16 on the right side of the stern bracket 16
A swing angle detection sensor 33 that detects a swing angle of the outboard motor main body 1 around the horizontal swing shaft 19 is provided on the inner surface of ₂ . The detection arm 33 ₁ of the swing angle detection sensor 33 is a detection piece 1 which is provided on the stern bracket 15 by a spring 34.
5 is urged ₂ to the abutting direction. A normal traveling state in which the swing angle of the outboard motor body 1 is small, that is, the swivel case 1
When the front surface of 5 is in the trim adjustment range where it abuts on the adjustment pin 30, the detection arm 33 ₁ of the swing angle detection sensor 33 is moved by the detection piece 15 ₂ of the stern bracket 15 against the spring 34 to the position indicated by the solid line in FIG. Pressed by, O
It is the FF position. When the outboard motor body 1 is tilted up from this state, the detection arm 33 ₁ swings to the position indicated by the chain line in accordance with the rise of the swivel case 15, and becomes the ON position. Even if the swivel case 15 further rises, the detection arm 33 ₁ is separated from the detection piece 15 ₂ and left at the chain line position, so that the swing angle detection sensor 33 is held at the ON position. In short, the swing angle detection sensor 33 is the outboard motor body 12
Is in the OFF position when the swing angle is small, and switches to the ON position when the swing angle exceeds a predetermined value.

Next, the structure of the steering wheel 13 will be described in detail with reference to FIGS. The steering handle 13 is provided with a handle body 35 having an inverted U-shaped cross-section with an open lower surface, and a boss 35 ₁ protruding from the side surface of the base end of the steering handle 13 is provided in the undercase 2 a of the outboard motor body 1. It is rotatably fitted to the outboard motor main body via a rubber bush 36, whereby the steering handle 13 swings up and down with respect to the outboard motor body between the solid line position and the chain line position in FIG.

A spring 3 is attached to the tip of the steering wheel 13.
A cylindrical throttle grip 37, which is rattled by 8, is rotatably supported. Throttle grip 37 at one end
A rod 39 as a transmission means fixed to the shaft extends in the steering handlebar 13 in the longitudinal direction and is supported by a bearing 40 at its tip. The intermediate portion of the rod 39 penetrates a synthetic resin adjustment block 41 having a split groove 41 ₁ , and the adjustment block 41 is tightened with a thumbscrew 41 ₂ to give an appropriate load to the rotation of the rod 39, whereby the throttle grip The operating force of 37 is adjusted (see FIG. 10). The cable 43 wound around the pulley 42 provided at the end of the rod 39 penetrates the boss 35 ₁ , is guided by the tube 54, and is connected to the throttle valve 3 of the engine E.

The central portion of the lower surface of the steering wheel 13 is covered with a lid member 45 fixed with three bolts 44. The lid member 45 is provided with a throttle opening detection sensor 46 composed of a limit switch, and the detection piece 46 ₁ thereof has a return spring 4
It is possible to contact the cam plate 48 fixed to the rod 39 via 7. As shown in FIG. 11, the cam plate 48 has the inclined surface 4
Has a 8 _1, when the rotation angle of the throttle grip 37 is small, that is, when the throttle opening is small, the throttle opening degree detecting sensor 46 spaced cam plate 48 from the detection piece 46 ₁ is turned OFF position ( Figure 11 (A
1), (A2)). Further, when the rotation angle of the throttle grip 37 is increased to exceed the predetermined value to open the throttle valve 3, the inclined surface 48 ₁ of the cam plate 48 causes the detection piece 46 ₁ to move.
Is pressed to turn on the throttle opening detection sensor 46 (see FIGS. 11B1 and 11B2). As described above, since the throttle opening detection sensor 46 is operated by the rod 39 that is interlocked with the throttle grip 37, the throttle opening can be easily detected with a simple structure.

The lid member 45 is provided with a hydraulic cylinder device operating switch 49 for operating the hydraulic cylinder device 22 for swinging the outboard motor body 1. The operator 49 ₁ of the hydraulic cylinder device operating switch 49 is swingable in two directions, and outputs two types of signals for swinging the outboard motor body 1 up and down by extending and contracting the hydraulic cylinder device 22.

Three claws 45 protruding from the inner surface of the lid member 45
The _1, buzzer 50 as a signal generating means so as to be positioned between the throttle opening degree detecting sensor 46 and the hydraulic cylinder device operation switch 49 is supported. The sounding section 50 ₁ of the buzzer 50 faces the lower surface of the steering handle 13 through a circular opening 45 ₂ formed in the lid member 45.

Lead wires for connecting the throttle opening detection sensor 46, the hydraulic cylinder device operation switch 49, and the buzzer 50 to an electric circuit (see FIG. 12) described later are inserted into the three tubes 51, 52, 53. To be done. The three tubes 51, 52, 53 are bundled into one inside the handle body 35, penetrate the boss 35 ₁ and outboard motor body 1
Be led to.

As shown in FIG. 12, the starter magnet 56 for operating the starter motor 55 of the engine E has a neutral detection switch 57 which is turned on when the shift lever 14 (see FIG. 2) is in the neutral position.
, The starter switch 58 is connected in series. Therefore, when the neutral detection switch 57 is in the ON position, that is, when the starter switch 58 is turned on when the shift lever 14 is in the neutral position, the starter magnet 56 is closed, the starter motor 55 is rotated, and the engine E is started.

A transistor 59 is connected in series to the buzzer 50, the throttle opening detection sensor 46, and the swing angle detection sensor 33. The transistor 59 is switched by the control unit 60 so that the shift lever 14 is in the neutral position and the neutral detection switch 5
When 7 is turned on, the base of the transistor 59 is grounded and the buzzer 50 does not operate. When the shift lever 14 is in the forward position or the reverse position and the neutral detection switch 57 is turned off, the transistor 59 becomes conductive, and when the throttle opening detection sensor 46 and the swing angle detection sensor 33 are both turned on, the buzzer 50 operates. Then a signal tone is emitted.

Next, the operation of the embodiment of the present invention having the above construction will be described.

In a normal traveling state, the outboard motor body 1 is supported by the stern S in a substantially vertical position in which the swivel case 15 of the outboard motor body 1 abuts the adjusting pin 30. The operator grips the steering wheel 13 and swings the outboard motor body 1 around the swivel shaft 25 to steer left and right,
The output of the engine E is adjusted by operating the shift lever 14 to switch between forward and backward movement, and rotating the throttle grip 37 of the steering wheel 13 to open and close the throttle valve 3. At this time, the outboard motor body 1 is in a substantially vertical posture, and the swing angle detection sensor 33 is in the OFF position because the detection arm 33 ₁ thereof is pressed by the detection piece 15 ₂ of the swivel case 15, so that the buzzer 50 operates. There is no such thing.

In order to prevent the propeller 8 from coming into contact with the bottom of the water when traveling in shallow water, when the operator 49 ₁ of the hydraulic cylinder device operating switch 49 is operated to extend the hydraulic cylinder device 22, the outboard motor main body is extended. 1 tilts up around the horizontal swing shaft 19. When the outboard motor body 1 is tilted up in this way, if the throttle valve 3 is opened and the output is increased to the engine E, the propeller 8 may suck air from the water surface, and the engine E may be in the idling state. The buzzer 50 sends a signal to the operator to prevent this. That is, when the outboard motor body 1 is tilted up, the swing angle detection sensor 33 is in the ON position with its detection arm 33 ₁ separated from the detection piece 15 ₂ of the swivel case 15. Further, when the throttle grip 37 is rotated beyond a predetermined position to open the throttle valve 3, the inclined surface 48 ₁ of the cam plate 48 provided on the rod 39 is detected by the detection piece 46 _1.
Is pressed, and the throttle opening detection sensor 46 is turned to the ON position. When the swing angle detection sensor 33 and the throttle opening detection sensor 46 are simultaneously turned to the ON position during traveling as described above, the buzzer 50 operates to loosen the throttle grip 37 for the operator to reduce the output of the engine E, or Alternatively, a signal is issued to tilt down the outboard motor body 1.

The throttle opening detection sensor 46, the hydraulic cylinder device operation switch 49, and the buzzer 50 are assembled in advance to the lid member 45, and the lid member 45 is attached to the lower surface of the handle body 35 with three bolts 44. Therefore, the assembling work of the steering wheel 13 can be performed very easily. Moreover, the throttle opening detection sensor 4
6, the hydraulic cylinder device operation switch 49, and the buzzer 50 are housed inside the handle main body 35 having an inverted U-shaped cross section, and thus are protected from water droplets falling from above. Further, since the throttle opening degree detection sensor 46 is arranged in the vicinity of the throttle grip 37 and the rod 39, not only the throttle opening degree is easily detected, but also the distance between the throttle opening degree detection sensor 46 and the buzzer 50 is increased. The length of the wiring is shortened by approaching.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made without departing from the present invention described in the claims. It is possible to

For example, instead of the hydraulic cylinder device 22, a damper for reducing the weight of the outboard motor body 1 may be mounted and the outboard motor body 1 may be manually swung up and down. Further, as the signal generating means, other means such as a chime or a lamp can be used instead of the buzzer 50.

[0034]

As described above, according to the first feature of the present invention, the throttle opening detecting sensor and the signal generating means are provided in the steering wheel, so that the throttle opening detecting sensor and the signal generating means are provided. Since it is located in the vicinity of the throttle valve operating section or the transmission means, the throttle opening detection sensor can easily detect the throttle opening and the wiring between the throttle opening detection sensor and the signal generation means can be shortened. You can Further, since the throttle valve operating portion, the transmission means, the throttle opening detection sensor, and the signal generation means are all attached to the steering wheel, a small steering wheel can be assembled and the assembly becomes easy.

According to the second aspect of the present invention, the throttle opening detection sensor is connected to the rod provided on the steering wheel, so that the throttle opening can be detected with a simple structure.

Further, according to the third aspect of the present invention, the throttle opening detection sensor and the signal generating means are arranged in the internal space formed in the steering handle and opened downward. The generating means can be protected from water splashes.

According to the fourth aspect of the present invention, since the throttle opening detection sensor and the signal generating means are supported by the lid member that closes the internal space of the steering wheel, a small steering wheel can be assembled. As a result, assembly becomes easier.

According to the fifth feature of the present invention, since the signal generating means and the hydraulic cylinder device operating portion are provided on the steering handle, the swing angle of the outboard motor body is received in response to the signal from the signal generating means. It is convenient when operating the hydraulic cylinder device operating part to adjust the.

According to the sixth aspect of the present invention, since the steering handle is supported so as to be vertically swingable with respect to the outboard motor main body, the steering handle is obstructed when the outboard motor main body is swung. Never become.

[Brief description of drawings]

1] Overall side view of the outboard motor

FIG. 2 is a two-direction arrow view of FIG.

FIG. 3 is an enlarged view of a main part of FIG.

FIG. 4 is an enlarged view of a main part of FIG.

FIG. 5 is an explanatory view of the action of the swing support mechanism.

6 is a sectional view taken along line 6-6 of FIG.

7 is a sectional view taken along line 7-7 of FIG.

FIG. 8 is a top view of the steering wheel.

9 is a sectional view taken along line 9-9 of FIG.

10 is a sectional view taken along line 10-10 of FIG.

FIG. 11 is an operation explanatory view of a throttle opening detection sensor.

FIG. 12 is an electric circuit diagram.

[Explanation of reference signs] 1-Outboard motor body 3--Throttle valve 13-Steering wheel handle 19-Horizontal swing shaft 22- Hydraulic cylinder device 33 ... Oscillation angle detection sensor 37 ... Throttle grip (throttle valve operating part) 39 ... Rod (transmission means) 45 ... Lid member 46 ...・ ・ ・ Throttle opening detection sensor 49 ・ ・ ・ ・ ・ Hydraulic cylinder device operation switch (hydraulic cylinder device operation unit) 50 ・ ・ ・ Buzzer (signal generation means) E ・ ・ ・ ・ ・ Engine

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location F02D 35/00 364 G 9038-3G (72) Inventor Masaki Tsunoda 1-4 Chuo, Wako, Saitama No. 1 Stock Company Honda Technical Research Institute

Claims (6)

[Claims] 1. An outboard motor main body (1) supported by an engine (E) having a throttle valve (3) so as to be vertically swingable around a horizontal swing shaft (19), and a throttle valve ( Throttle valve operating part (37) for opening and closing 3)
And a transmitting means (39) for transmitting the operation of the throttle valve operating portion (37) to the throttle valve (3), and the throttle valve operating portion (37) provided in the outboard motor body (1) and the transmitting means. A steering wheel (13) that supports at least a part of (39), a swing angle detection sensor (33) that detects the swing angle of the outboard motor body (1), and the opening of the throttle valve (3). And a signal generation means (50) that operates based on the output signals of the swing angle detection sensor (33) and the throttle opening detection sensor (46). An outboard motor, wherein the throttle opening detection sensor (46) and the signal generating means (50) are provided on a steering wheel (13). 2. The steering means (1) for transmitting means (39)
The outboard motor according to claim 1, further comprising a rod provided in 3), and the throttle opening detection sensor (46) is connected to the rod. 3. A steering handle (13) is provided with an internal space opened downward, and a throttle opening detection sensor (46) and a signal generating means (50) are arranged in this internal space. The outboard motor according to claim 1 or 2. 4. A throttle opening detection sensor (4) is attached to a lid member (45) that closes the internal space of the steering wheel (13).
An outboard motor according to claim 3, characterized in that it supports 6) and the signal generating means (50). 5. An outboard motor main body (1) supported by an engine (E) having a throttle valve (3) so as to be vertically swingable around a horizontal swing shaft (19), and this outboard motor. Hydraulic cylinder device (22) for vertically swinging the machine body (1)
A hydraulic cylinder device operating part (49) for operating the hydraulic cylinder device (22), a throttle valve operating part (37) for opening and closing the throttle valve (3), and an operation of the throttle valve operating part (37). To the throttle valve (3), and to the throttle valve operating section (37) provided on the outboard motor body (1) and the transmission means (3).
Steering handle (13) supporting at least part of (9)
A swing angle detection sensor (33) that detects the swing angle of the outboard motor body (1), a throttle opening detection sensor (46) that detects the opening of the throttle valve (3), and a swing angle An outboard motor comprising a detection sensor (33) and a signal generation means (50) that operates based on output signals of a throttle opening detection sensor (46), the signal generation means (50) and a hydraulic cylinder. An outboard motor comprising a device handle (49) provided on a steering handle (13). 6. The outboard motor according to claim 5, wherein the steering handle (13) is supported so as to be vertically swingable with respect to the outboard motor body (1).