CN100519334C - Outboard motor - Google Patents

Outboard motor Download PDF

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Publication number
CN100519334C
CN100519334C CNB2006100761807A CN200610076180A CN100519334C CN 100519334 C CN100519334 C CN 100519334C CN B2006100761807 A CNB2006100761807 A CN B2006100761807A CN 200610076180 A CN200610076180 A CN 200610076180A CN 100519334 C CN100519334 C CN 100519334C
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CN
China
Prior art keywords
outboard motor
drive shaft
drive division
drive source
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2006100761807A
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Chinese (zh)
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CN1872621A (en
Inventor
久保田美津明
市川亚希子
安田兴次
寺田茂巨
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Publication date
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Publication of CN1872621A publication Critical patent/CN1872621A/en
Application granted granted Critical
Publication of CN100519334C publication Critical patent/CN100519334C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

In an outboard motor mouhted on a stern of a boat, comprising a power source and a driven unit including a drive shaft connected to the power source and a propeller connected to the drive shaft through a gear mechanism, wherein the power source is detachably connected to the driven unit through an interlock unit.In addition, on the interlock unit disposed a elastomer by which the power source part and the driven unit are connected. Owing to this configuration, it becomes possible to provide the outboard motor that is improved in transportability or portability, can be easily mounted on a boat, and minimizes the amount of space required for storage.

Description

Outboard motor
Technical field
The present invention relates to outboard motor.
Background technology
, for more small-sized outboard motor, only attached it on the hull (hull) by ship operator or keeping person in use in the past, on the other hand, when not using, it was pulled down and took care of the site of storage of stipulating from hull.Therefore, people have proposed the various operation that outboard motor the is moved to site of storage easy technology [for example, Japanese kokai publication hei 11-001199 communique (the 0019th, 0026 section, Figure 10 etc.)] that become that make.
But, usually,,, need improve aspect the carrying when mobile outboard motor so volume is big even the Small-sized Marine external engine also is to form longly along the vertical direction.In addition, for the same reason, the operation that outboard motor is installed on the hull also is not easy.In addition, when this outboard motor is carried in keeping or by vehicle etc., also taking big quantity space, comparatively inconvenience.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of outboard motor, can address the above problem, improve the carrying of outboard motor, and it is installed on the hull easily, and can reduce space shared when taking care of.
To achieve these goals, technical scheme 1 is a kind of outboard motor, it has drive source and drive division, described drive division has axle drive shaft and screw propeller at least, this axle drive shaft is connected with aforementioned drive source, thereby by its driving, this screw propeller is connected on the aforementioned axle drive shaft by gear mechanism, wherein, aforementioned drive source is connected in the mode that can freely load and unload by the fastening part with aforementioned drive division.
In addition, the outboard motor of technical scheme 2 has following structure, that is, aforementioned fastening part has: first connecting portion that is connected with aforementioned drive source, second connecting portion that is connected with aforementioned drive division, and the fixed part of fixing aforementioned first connecting portion and aforementioned second connecting portion.
Outboard motor according to technical scheme 1, drive division has axle drive shaft and screw propeller at least, axle drive shaft is connected with drive source, thereby by its driving, screw propeller is connected on the axle drive shaft by gear mechanism, because drive source is connected in the mode that can freely load and unload by the fastening part with drive division, in other words, because outboard motor is for being divided into the structure of drive source and drive division, so during the carrying outboard motor, drive source and drive division split can be carried, transport, therefore no longer include bulky problem, can improve carrying property (Portability).In addition, when being installed to above-mentioned outboard motor on the hull, for example after being installed to drive division on the hull, rely on the fastening part and drive source is connected to gets final product on the drive division, will be installed to outboard motor on the hull when unloading then antithesis, can after drive source is unloaded from drive division, drive division be taken off from hull, therefore outboard motor can be easily mounted on the hull or from it and pull down.In addition, owing to outboard motor can be divided into drive source and drive division, can reduce space shared when taking care of.
In addition, outboard motor according to technical scheme 2, the fastening part has: first connecting portion that is connected with drive source, second connecting portion that is connected with drive division and fix first connecting portion and the fixed part of second connecting portion, so except that above-mentioned effect, can also be with simple structure fixed drive source and drive division effectively.
Description of drawings
Fig. 1 is the part sectional view of the outboard motor of first embodiment of the invention.
Fig. 2 is the amplification part sectional view of fastening part shown in Figure 1.
Fig. 3 represents fastening part shown in Figure 2 is divided into the state of drive source and drive division, is the amplification part sectional view same with Fig. 2.
Fig. 4 is the cutaway view of having cut open along IV-IV line among Fig. 2.
Fig. 5 is for seeing the lateral plan of fastening part shown in Fig. 2 from the right side.
Fig. 6 is the part sectional view with the same outboard motor of Fig. 1, is used to illustrate the installation exercise of outboard motor shown in Figure 1.
Fig. 7 is the part sectional view same with Fig. 1, has represented the outboard motor of second embodiment of the invention.
Fig. 8 is the amplification part sectional view of fastening part shown in Figure 7.
Fig. 9 is the amplification part sectional view same with Fig. 2, has represented fastening part shown in Figure 8 is divided into the state of drive source and drive division.
The cutaway view of Figure 10 for having cut open along the X-X line of Fig. 8.
Figure 11 is the part sectional view of the outboard motor identical with Fig. 6, is used to illustrate the fitting operation of outboard motor shown in Figure 7.
The specific embodiment
With reference to the accompanying drawings, the optimal way of implementing outboard motor of the present invention is described.
[embodiment 1]
Fig. 1 is the part sectional view of the outboard motor of embodiments of the invention 1.
In Fig. 1, symbol 10 expression outboard motors.Outboard motor 10 is fixed on the rear portion (transom) 18 of hull 16 by two after-poppets (only illustrating among Fig. 1) 14 with screw-type clamping mechanism 12.
Position above being positioned on outboard motor 10 above-below directions is provided with combustion engine (drive source below is called " driving engine ") 20.Driving engine 20 is approximately the single cylinder engine petrol of 50cc for free air capacity, produces the output of 1.5kW (about 2PS).As shown in the figure, the bent axle (output shaft) 22 at driving engine 20 places is and above-below direction parallel shape configuration, and driving engine 20 and bent axle 22 are covered by car bonnet 24.
Below so-called " above-below direction " be meant and the direction of bent axle 22 parallel (or almost parallels) that because the leaning angle of outboard motor 10 or the existence of angle of equilibrium, above-mentioned " above-below direction " is not necessarily consistent with gravity direction.In addition, so-called " horizontal direction " is meant the direction vertical with " above-below direction " of above definition.And in the horizontal direction, from the position of outboard motor 10, with hull 16 sides, be that working direction is " the place ahead ", its opposite sense is " rear ".And so-called " left and right directions " is meant in the horizontal direction the direction with the fore-and-aft direction quadrature.
In outboard motor 10, the lower position of the driving engine 20 on above-below direction is provided with electrical motor (drive source, generator motor) 28.Electrical motor 28 is the DC brushless motor, and it has stator 30 and rotor (below, be called " output shaft ") 32, the output that produces hundreds of W.The output shaft 32 at electrical motor 28 places is and the configuration of above-below direction parallel shape, and electrical motor 28 is covered by the engine casing (Eng Cas) 34 that forms continuously from car bonnet 24.In addition, car bonnet 24 and engine casing (Eng Cas) 34 specifically, are made by aluminum by the metallic material of elastically deformable.
As shown in the figure, on engine casing (Eng Cas) 34, be connected with a plurality of (specifically two) protrusion.Below, the protrusion that will be connected to the place ahead on the fore-and-aft direction of engine casing (Eng Cas) 34 is called " first protrusion ", and 34a represents with symbol.The protrusion that is connected to the rear is called " second protrusion ", and 34b represents with symbol.
The first protrusion 34a is after giving prominence to along general horizontal direction towards the place ahead of engine casing (Eng Cas) 34, and oblique upper forms continuously forward.In addition, the second protrusion 34b forms along general horizontal direction is outstanding towards the rear of engine casing (Eng Cas) 34.Connect handle part 34a1, the 34b1 that can control by the ship operator respectively in the end of the first and second protrusion 34a, the 34b that form as described above.
Configuration centrifugal clutch 36 between driving engine 20 and electrical motor 28.Specifically, the upper end of the output shaft 32 of the lower end of the bent axle 22 of driving engine 20 and electrical motor 28 is connected by centrifugal clutch 36.
In the lower end of the output shaft 32 of electrical motor 28, be connected with the upper end of axle drive shaft (drive division) 40 in the mode that can freely load and unload by fastening part (description is arranged hereinafter) 38.As shown in the figure, axle drive shaft 40 is and the configuration of above-below direction parallel shape, and can be supported in axle drive shaft cover 42 inside around the mode that the above-below direction axis freely rotates.
Lower end at axle drive shaft 40 is connected with prop shaft 46 by gear mechanism 44.Gear mechanism 44 comprises: be arranged on the miniature gears 48 of axle drive shaft 40 lower ends and be arranged on the bevel gear 50 of prop shaft 46 ends, by their engagement, axle drive shaft 40 and prop shaft 46 are interconnected.
Gear mechanism 44 and prop shaft 46 are covered by the gear case 52 that is configured in axle drive shaft cover 42 belows, and prop shaft 46 is can be supported in the inside of this gear case 52 around the horizontal axis free rotation mode.And, the end of the opposite side in the end with being provided with bevel gear 50 on prop shaft 46, promptly the rear end of prop shaft 46 is outstanding to the rear of outboard motor 10 from gear case 52, and screw propeller (drive division) 54 is installed thereon.Thus, the axle drive shaft 40 that is connected with driving engine 20 and electrical motor 28 as drive source is connected with screw propeller 54 by gear mechanism 44.
Thus, the output of electrical motor 28 (rotation output) is delivered on the prop shaft 46 by fastening part 38, axle drive shaft 40 and gear mechanism 44 (miniature gears 48, bevel gear 50), and screw propeller 54 rotations produce the thrust on the direction that hull 16 is advanced or retreat.
And, the output of driving engine 20 (rotation output) is delivered to after the output shaft 32 of electrical motor by centrifugal clutch 36, be delivered to prop shaft 46 by fastening part 38, axle drive shaft 40 and gear mechanism 44 equally with the output of electrical motor 28, screw propeller 54 rotation produces the thrust that makes on the direction that hull 16 advances.That is, at least one in the output of output by driving engine 20 and electrical motor 28 makes screw propeller 54 rotations.
Like this, outboard motor 10 is to be installed on the hull 16 and is the mixed motivity type of the drive source of screw propeller 54 with driving engine 20 and electrical motor 28, in more detail, it is the Small-sized Marine external engine that has the driving engine 20 about free air capacity 50cc and export the electrical motor 28 of hundreds of W, and the drive division that is made of axle drive shaft 40 and screw propeller 54 is installed on the hull 16 by after-poppet 14.
The lower position of the above-mentioned first protrusion 34a is provided with bar handle (tiller) 56.As shown in the figure, bar handle 56 is forwards outstanding from engine casing (Eng Cas) 34, can freely be handled by the ship operator.Axle drive shaft cover 42 is can be supported on the aforementioned after-poppet 14 around the mode that the above-below direction axis freely rotates, thus, the ship operator says exactly by along continuous straight runs, along left and right directions manipulation handle 56, steering to the left and right (operation) outboard motor 10.
Front end at bar handle 56 is provided with throttle grip 58.Throttle grip 58 can be by the free rotating operation of ship operator, and portion is provided with rotation angle sensor (volume sensor) 60 within it.Rotation angle sensor 60 will with the corresponding signal output of angle of rotation (operational ton) of throttle grip 58 in the not shown electronic control unit (Electronic Control Unit) or controller that constitute by microcomputer etc., and controller changes the output of electrical motor 28 corresponding to the signal of input, adjusts the ship's speed of hull 16 thus.
In addition, throttle grip 58 is connected on the throttle gate (all not shown among the figure) of driving engine 20 by the push-and-pull steel wire.Thus, when handling throttle grip 58, throttle gate opens or closes, and adjusts engine speed, thereby adjusts the ship's speed of hull 16.
In addition, near throttle grip 58, be provided with mode switch 62, import the starting order or the halt instruction of drive source (driving engine 20 and electrical motor 28) to it by the ship operator.Mode switch 62 will with the input starting or the corresponding signal output of halt instruction in aforementioned controller, controller corresponding to the input signal and the driving of driving engine 20 and electrical motor 28 is controlled.
Next, to the lower end of the output shaft 32 of electrical motor 28 and the upper end of axle drive shaft 40 are elaborated with the fastening part 38 that the mode that can freely load and unload couples together.
Fig. 2 is the amplification part sectional view of fastening part 38 shown in Figure 1, and Fig. 3 is and the same amplification part sectional view of Fig. 2 that expression is divided into fastening part 38 shown in Figure 2 the state of drive source and drive division.
Shown in Fig. 2 and 3, fastening part 38 has: protuberance (first connecting portion) 66, and its connection (formation) is to the bottom 32a of the output shaft 32 of electrical motor 28; Recess (second connecting portion) 70, it is connected on the upper end 40a of axle drive shaft 40 by link 68.
And, near the lower end of engine casing (Eng Cas) 34, be formed with and roughly be receiving portion 34c cylindraceous.Inside at receiving portion 34c forms space (only shown in Figure 3) 72, and disposes the bottom 32a and the protuberance 66 of above-mentioned output shaft 32 in space 72.And, near the upper end of axle drive shaft cover 42, be formed with and roughly be jut 42a cylindraceous.Inside at jut 42a forms space 74, and disposes upper end 40a, link 68 and the recess 70 of axle drive shaft 40 in this space 74.
Fig. 4 is the cutaway view of having cut open along IV-IV line among Fig. 2.
As shown in the figure, protuberance 66 is polygon (specifically being roughly square) in cross section view, and its inside forms solid.And similarly, recess 70 also is polygon (specifically roughly square) in cross section view, and its inside is hollow, and this hollow space forms the shape that can supply above-mentioned protuberance 66 chimeric.In addition, receiving portion 34c be set in interior week bigger slightly than the periphery of jut 42a.
Fig. 5 is for seeing the lateral plan of fastening part shown in Fig. 2 38 from the right side.
Be formed with fixed part 80 near the lower end of receiving portion 34c, this fixed part 80 is used for fixing protuberance 66 and recess 70.Fixed part 80 has: give prominence to the first fixed parts 80a and the second fixed parts 80b that forms from the side of receiving portion 34c, and be formed on the clearance portion 82 between the first and second fixed parts 80a, the 80b.
In the first fixed parts 80a, be equipped with the through hole 86 that can supply bolt 84 to insert, and in the second fixed parts 80b, be equipped with the tapped bore 88 that can engage with aforementioned bolt 84.And as shown in Figure 5, clearance portion 82 forms the otch of predetermined distance upward from the lower end of receiving portion 34c.Below, with the cut sides in left side among Fig. 5 as " the first cut sides 82a ", with the cut sides on right side as " the second cut sides 82b ".
Therefore, when binding bolt 84, the spacing distance of first and second fixed parts 80a, 80b reduces, accompany therewith, the receiving portion 34c elastic deformation of engine casing (Eng Cas) 34 makes clearance portion 82 distortion, specifically, the spacing distance of first and second cut sides 82a, 82b reduces.
On the other hand, when unclamping bolt 84, the spacing distance of first and second fixed parts 80a, 80b increases, accompany with it, the receiving portion 34c elastic deformation of engine casing (Eng Cas) 34 makes clearance portion 82 distortion, specifically, the spacing distance of first and second cut sides 82a, 82b increases.In addition, in Fig. 5, represent the state of binding bolt 84, and represent to unclamp the state of bolt 84 with long and two-short dash line with solid line.
Then, describe having the operation that the as above outboard motor 10 of structure is installed on the hull 16.
Fig. 6 is the part sectional view with the same outboard motor 10 of Fig. 1, is used to illustrate the fitting operation of outboard motor 10.
The clamping mechanism 12 of operation such as ship operator after-poppet 14 connects (fixing) to hull 16 with after-poppet 14.Thus, the drive divisions such as axle drive shaft 40, gear mechanism 44 and screw propeller 54 that have been connected on the after-poppet 14 are installed on the hull 16.
Then, ship operator etc. catches handle part 34a1, the 34b1 of engine casing (Eng Cas) 34, the top that makes the car bonnet 24 that contains drive source and engine casing (Eng Cas) 34 move to drive division simultaneously.Afterwards, car bonnet 24 and engine casing (Eng Cas) 34 are moved downwards, make the receiving portion 34c of engine casing (Eng Cas) 34 and the jut 42a tabling of axle drive shaft cover 42, and make the protuberance 66 of output shaft 32 and recess 70 tablings of axle drive shaft 40.
Afterwards, by the bolt 84 of fastening fixed part 80, reduce the spacing distance of first and second cut sides 82a, 82b, that is, receiving portion 34c reduces in interior week.Thus, the interior perimeter surface 34c1 of receiving portion 34c is close on the outer surface 42a1 of jut 42a by pressure, thus receiving portion 34c is fixed on the jut 42a.
By receiving portion 34c is fixed on the jut 42a, the protuberance 66 of output shaft 32 can not thrown off from the recess 70 of axle drive shaft 40, therefore can be effectively fixedly protuberance 66 and recess 70.Thus, the rotation output from output shaft 32 can be delivered to axle drive shaft 40 by fastening part 38.Operation as mentioned above, outboard motor 10 just is installed on the hull 16.
On the other hand, when with outboard motor 10 when hull 16 takes off, carry out the operation opposite with aforesaid operations.Specifically,, the spacing distance of first and second cut sides 82a, 82b is increased by the bolt 84 that unclamps fixed part 80, that is, and the interior Zhou Zengjia of receiving portion 34c.Thus, the interior perimeter surface 34c1 of receiving portion 34c is not pressed to such an extent that be close on the outer surface 42a1 of jut 42a, and in other words, receiving portion 34c and jut 42a fixedly are disengaged.
Afterwards, ship operator etc. catches handle part 34a1,34b1, and car bonnet 24 and engine casing (Eng Cas) 34 are lifted the top, and they are taken off from drive division.Then, the clamping mechanism 12 of operation after-poppet 14 takes off after-poppet 14 from hull 16, thus drive divisions such as axle drive shaft 40, gear mechanism 44 and screw propeller 54 are taken off from hull 16.
Like this, in the outboard motor 10 of first embodiment of the invention, drive division has axle drive shaft 40 and screw propeller 54 at least, axle drive shaft 40 is connected with drive source, thereby by its driving, screw propeller 54 is connected on the axle drive shaft 40 by gear mechanism 44, because drive source, specifically be connected in the mode that can freely load and unload by fastening part 38 with drive division with electrical motor 28 owing to driving engine 20, in other words, because outboard motor 10 is for being divided into the structure of drive source and drive division, so during carrying outboard motor 10, drive source and drive division split can be carried, transport, therefore no longer include bulky problem, can improve carrying property (Portability).
In addition, when being installed to above-mentioned outboard motor 10 on the hull 16, after drive division being installed on the hull 16, rely on fastening part 38 and drive source is connected to gets final product on the drive division, when the outboard motor 10 on will being installed to hull 16 unloads then antithesis, therefore can after drive source is unloaded from drive division, drive division be taken off from hull 16, can be easily mounted to outboard motor 10 on the hull 16 or pull down from it.
In addition, owing to outboard motor 10 can be divided into drive source and drive division, can reduce space shared when taking care of.
In addition, since fastening part 38 have: the protuberance 66 of saying so and being connected with drive source, correctly with the output shaft 32 of electrical motor 28; And the recess 70 of with drive division, correctly saying so and being connected with axle drive shaft 40; And the fixing fixed part 80 of protuberance 66 and recess 70, so can be with simple structure fixed drive source and drive division effectively.
[embodiment 2]
Fig. 7 is and the part sectional view of the same outboard motor of Fig. 1, has represented second embodiment of the invention.
When attach most importance to when explanation with the point different, in a second embodiment, rubber plinth (elastic body) 90 is arranged in the inboard configuration (assembling) that is formed near the receiving portion 34c engine casing (Eng Cas) 34 lower ends with Fig. 1 embodiment.
To shown in Figure 10, rubber plinth 90 is formed roughly cylindric as Fig. 8.Rubber plinth 90 by elastomeric material (specifically, poly-chloroprene rubber) make, its hardness (elasticity) is set at the transfer of vibration that can suppress drive source (driving engine 20 and the electrical motor 28) value (for example about HS60 °) to drive division (exactly being axle drive shaft cover 42).
Be described below, in the past, people generally know combustion engine etc. are equipped on outboard motor on the ship as the drive source of screw propeller.In this outboard motor, the outboard motor main body is directly installed on the hull.Therefore, follow the vibration of the running generation of drive source to be passed to hull, produce noise thus.Therefore, in order to reduce described vibration and noise, general the suspended portion of outboard motor (is used for outboard motor is fixed to mechanism on the hull by elastic bodys such as connection rubber, specifically, after-poppet, hinged cover etc.) and the outboard motor main body [for example couple together, Japanese kokai publication hei 5-278684 communique (the 0009th, 0015,0016 section, Fig. 1 etc.)].
But, in above-mentioned prior art, owing to connect the suspended portion and the outboard motor body of outboard motor by elastic body, so when elastomeric hardness is set low (soft), the maneuvering performance of outboard motor descends, specifically, can there be the unfavorable conditions such as vibration that produce outboard motor.Therefore, must guarantee that hardness etc. to a certain degree descends to prevent road-holding property, thereby elastomeric hardness is set with restriction, so the vibration and the noise that differ and reduce outboard motor surely fully.
In a second embodiment, In view of the foregoing, except that the easiness of carrying, can under the situation that does not cause road-holding property to reduce, reduce vibration and the noise of following the running of drive source and producing.
Figure 11 is the part sectional view of the outboard motor 10 identical with Fig. 6, and it has illustrated the fitting operation of the outboard motor 10 of second embodiment.
The installation of second embodiment is identical with first embodiment, and ship operator etc. operate clamping mechanism 12, thereby after-poppet 14 is connected (fixing) to hull 16; Catch handle part 34a1, the 34b1 of engine casing (Eng Cas) 34, the top that makes the car bonnet 24 of accommodating drive source and engine casing (Eng Cas) 34 move to drive division simultaneously.
Afterwards, shown in arrow among Figure 11, car bonnet 24 and engine casing (Eng Cas) 34 are moved downwards, the receiving portion 34c of engine casing (Eng Cas) 34 is cooperated with the jut 42a of axle drive shaft cover 42.Thus, rubber plinth 90 is clamped between the axle drive shaft cover 42 of engine casing (Eng Cas) 34 and drive division.
In addition, the structure of the outboard motor of the order of remaining fitting operation and second embodiment is identical with first embodiment.
Like this, in the outboard motor 10 of second embodiment of the invention, the inboard of receiving portion 34c engine casing (Eng Cas) 34 lower ends that are formed at fastening part 38 near disposes rubber plinth 90, thus, to driving engine 20, the car bonnet 24 that electrical motor 28 is accommodated, engine casing (Eng Cas) 34 is connected by rubber plinth 90 with drive division on being installed to hull 16, wherein drive division comprises at least: thus be connected on driving engine 20 and the electrical motor 28 axle drive shaft 40 by its driving, with the screw propeller 54 that is connected to by gear mechanism 44 on the axle drive shaft 40, so except that the described effect of first embodiment, can be by the vibration of rubber plinth 90 decay driving engines 20 drive sources such as grade, suppress it and be delivered on the hull 16, thereby can reduce the running of following drive source and the vibration and the noise of the outboard motor 10 that produces.In addition, since rubber plinth 90 the position is set not in the suspended portion of outboard motor 10, so the hardness of rubber plinth 90 can not influence maneuvering performance.Therefore, the hardness of rubber plinth 90 is set not restriction, thereby can reduce the vibration and the noise of outboard motor 10 effectively.
In addition, because it is fixing by bolt, packing ring and nut etc. to be used to reduce the elastic body of prior art of the vibration of outboard motor and noise, thus its complex structure, and have the inconvenience that can not easily carry out elastomeric fitting operation etc.But, in outboard motor 10, because elastic body is made of the rubber plinth 90 that is clamped between drive source portion (exactly being engine casing (Eng Cas) 34) and the drive division (exactly being axle drive shaft cover 42), so can form simple structure, thereby can easily carry out operations such as the assembling of rubber plinth 90 or replacing.
In addition, propulsion source is made of in driving engine 20 and the electrical motor 28 at least one, so propulsion source kind why no matter can both reduce the vibration and the noise of outboard motor 10 effectively.Particularly, in having the more small-sized mixed motivity type outboard motor 10 of driving engine 20 and electrical motor 28, can more effectively reduce the vibration and the noise of outboard motor 10.
As mentioned above, in the first embodiment of the present invention, outboard motor 10 has drive source (driving engine 20, electrical motor 28) and drive division, described drive division has axle drive shaft 40 and screw propeller 54 at least, this axle drive shaft 40 is connected with aforementioned drive source, thereby by its driving, this screw propeller 54 is connected on the aforementioned axle drive shaft 40 by gear mechanism 44, wherein, aforementioned drive source is connected in the mode that can freely load and unload by fastening part 38 with aforementioned drive division.
And aforementioned fastening part 38 has: be connected to first connecting portion (protuberance 66) of aforementioned drive source, second connecting portion (recess 70) that is connected to aforementioned drive division, and the fixed part 80 of fixing aforementioned first connecting portion and aforementioned second connecting portion.
In addition, in the second embodiment of the present invention, be formed at fastening part 38, more particularly, inboard at the receiving portion 34c that is formed at engine casing (Eng Cas) 34 lower ends that constitute fastening part 38, elastic body (rubber plinth 90) is set, thus, accommodate the drive source portion (car bonnet 24 and engine casing (Eng Cas) 34) of aforementioned drive source (driving engine 20 and electrical motor 28) and be connected by aforementioned elastic body with drive division on being installed to hull 16, wherein drive division has at least and is connected on the aforementioned drive source and by the axle drive shaft 40 of its driving, with the screw propeller 54 that is connected to by gear mechanism 44 on the aforementioned axle drive shaft 40.
And aforementioned elastic body is made of the rubber plinth 90 that is clamped between aforementioned drive source portion 24,34 and the aforementioned drive division 40,54.
And aforementioned propulsion source is made of combustion engine 20 and electrical motor 28, and in aforementioned combustion engine and the aforementioned electric motivation at least one is connected on the aforementioned axle drive shaft.
In addition, in the above content, constitute outboard motor 10, but also drive division can be divided into three or more again to be divided into the two-part mode of drive source and drive division.
And in the above content, fixed part 80 has first, second fixed parts 80a, 80b, clearance portion 82 and bolt 84 etc., but be not limited thereto, so long as in fixedly receiving portion 34c and jut 42a fixedly the structure of protuberance 66 and recess 70 get final product.
And, in the above content, when being installed to outboard motor 10 on the hull 16, after being installed in drive division on the hull 16, drive source is connected on the drive division, but also after-poppet 14 can be connected to the driving source, thereby after drive source being installed on the hull 16, drive division be connected on the drive source.
And in the above content, electrical motor 28 is the DC brushless motor, but also can use the electrical motor of other form.
And in the above content, the free air capacity of driving engine 20 is 50cc, and electrical motor 28 is output as hundreds of W, but these only are illustration, are not determinate.
And, in the above content, between driving engine 20 and electrical motor 28, centrifugal clutch 36 is set, but also can uses magnetic clutch etc.
And, in the above content, be that example describes, but be not limited thereto that the present invention is also applicable to relatively large outboard motor with Small-sized Marine external engine 10.

Claims (5)

1. outboard motor, it has drive source and drive division, described drive division has axle drive shaft, screw propeller at least and accommodates case, described axle drive shaft is connected with described drive source, thereby by its driving, described screw propeller is connected on the described axle drive shaft by gear mechanism, and described axle drive shaft can be housed in described accommodating in the case with rotating freely, it is characterized in that:
Described drive source is connected in the mode that can freely load and unload by the fastening part with described drive division.
2. outboard motor according to claim 1 is characterized in that:
Described fastening part has: the fixed part of first connecting portion that is connected with described drive source, second connecting portion that is connected with described drive division and fixing described first connecting portion and described second connecting portion.
3. outboard motor according to claim 1 is characterized in that:
Described fastening part is provided with elastic body, described drive division and contain described drive source drives source portion and couple together by described elastic body.
4. outboard motor according to claim 3 is characterized in that:
Described elastic body comprises the rubber plinth that is clamped between described drive source portion and the described drive division.
5. according to claim 1 or 3 described outboard motors, it is characterized in that:
Described propulsion source comprises combustion engine and electrical motor, and in described combustion engine and the described electrical motor at least one is connected on the described axle drive shaft.
CNB2006100761807A 2005-04-26 2006-04-26 Outboard motor Expired - Fee Related CN100519334C (en)

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JP2005127558A JP4575229B2 (en) 2005-04-26 2005-04-26 Outboard motor
JP127558/2005 2005-04-26
JP152134/2005 2005-05-25

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CN100519334C true CN100519334C (en) 2009-07-29

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