CN1194881C

CN1194881C - Ship driver including plastic engine bottom cover

Info

Publication number: CN1194881C
Application number: CNB021017700A
Authority: CN
Inventors: 吉噶崎刚; 井手真一; 林崎正一
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2001-01-19
Filing date: 2002-01-18
Publication date: 2005-03-30
Anticipated expiration: 2022-01-18
Also published as: EP1225125A3; EP1225125A2; CN1365930A; DE60204487D1; JP2002211489A; EP1225125B1; DE60204487T2; JP4563596B2

Abstract

In an outboard marine drive, an engine (E) is supported on an engine mount case (5), and an under cover (10) made of plastic material having a lower end attached to the engine mount case defines an open upper end which engages an open lower end of an engine cover (11) also made of plastic material. A metallic stay member (14) having a lower end fixedly attached to the engine mount case which is typically made of cast aluminum alloy and an upper end fixedly supporting a support rail (15) reinforces the open upper end of the under cover. Thus, the essential part is reinforced by a metallic member, and the required mechanical strength can be achieved while minimizing the increase in weight. The upper end of the stay member may be used for attaching a latch unit (17) for securing the engine cover to the under cover or the engine mount case.

Description

The outer ship driver that comprises the driving engine bottom that is made of plastics

Technical field

The present invention relates to a kind of outer ship driver, especially relate to a kind of outer ship driver that comprises bottom and engine case, this bottom and engine case have been determined an engine room jointly, and this bottom and engine case all are made of plastics.

The background technology of invention

Usually, outer ship driver defines a horizontal narrower profile at its lower apron, so that reduce flow resistance, and this actuator also defines laterally the wideest profile part, at this part place, bottom and engine case are connected with each other so that determine an engine room therein.In so outer ship driver, hope can form this bottom and engine case with plastics, so that make the weight of this outer ship driver reduce to minimum.But, make this actuator can support the weight of himself when the side, need to increase the thickness of the wider portion of this actuator in order outside will being somebody's turn to do, to adorn drive arrangement.But, this makes the weight of this outer ship driver can not reduce to minimum.

Also have, need a locking device to make engine case remain on closed condition.When this bottom is made of plastics, need strengthen it, so that can support this locking and/or locking device.This also makes the weight of this outer ship driver can not reduce to minimum.

The driving engine of outer ship driver is installed in the engine installation housing usually, and this engine installation housing is for example made by aluminum alloy and very high hardness arranged.Therefore, can expect by making this bottom and engine installation housing form the problem that one solves mechanical strength.

But, engine case needs the open lower end of relatively large area, so that the top of covering engine, simultaneously can be when taking off this driving engine easily near this driving engine, and bottom correspondingly needs relatively large open upper end, this open upper end is used for cooperating with the open lower end of engine case, so that determine an engine room jointly.Therefore, when bottom is made by metallic material, the weight of this outer ship driver will be increased to unacceptable level, and this will be unfavorable for resembling the such processing of transportation.Especially, when the size of driving engine increases with the improvement performance, the increase of the total weight of caused outer ship driver will make that these problems are more serious.

In bigger outer ship driver, engine case is done to such an extent that size is bigger inevitably, and needs to be installed on bottom or the engine installation housing at a plurality of somes place along this engine case lower openings end periphery equably.On the other hand, in order to keep in repair and other purpose, preferably can take off this engine case when needed easily.Therefore, provide a plurality of lock bolts unit along this periphery usually.

In order to eliminate the inconvenience that need open this lock bolt unit one by one and cause, preferably provide a suitable synchronous device, this synchronous device can make a plurality of lock bolts unit open simultaneously.Such locking device also proposes.For example, the open No.5-85484 of Japanese Patent discloses a kind of device, wherein, an inner strand drives three lock bolt unit, and the open No.10-175595 of order this patent discloses three hooks, these three hooks can be around horizontal rotational shaft, one of them is in center front, and two in the both sides, rear portion, and the open No.59-54400 of Japanese Utility Model discloses a kind of device, wherein, a pair of lock bolt unit is connected with each other by the Boden rope.

According to the prompting of the open No.5-85484 of Japanese Patent because a rope drives whole three lock bolt unit, be not easy between three lock bolt unit, to obtain suitable synchronously.Also have, because this driving rope does not have outer tube, this rope must extend on substantially linear ground between two lock bolt unit, and the layout degree of freedom of this lock bolt unit is limited, thereby makes that applied pressure is inhomogeneous on the sealing member on the whole periphery of engine case.

According to the prompting of the open No.10-175595 of Japanese Patent, lock bolt unit, front and back must discharge one by one, and this shortcoming is unacceptable.Because the bar of two hooks at rear portion by horizontal expansion links to each other, need one and be used to laterally-elongated space that this bar is passed, this has seriously limited the layout degree of freedom of this lock bolt unit.This makes that also applied pressure is inhomogeneous on the sealing member on the whole periphery of engine case.

Prompting according to the open No.59-54400 of Japanese Utility Model, the Boden rope extends along the inside face of engine case, and be difficult to regulate the tension degree of this rope so that make the driving of these two lock bolt unit synchronous, this has had a strong impact on the comfort feature of production efficiency and maintenance.The prior art does not point out how to make this scheme to be used for making the situation of three or more lock bolt units synchronization.

The lower edge of engine case cooperates by the appropriate section of rubber seal with driving engine bottom or engine installation housing, this rubber seal along in two parts that are connected with each other at least one the neighboring and extend.In the process of closing and opening of engine case, this rubber seal will be when each engine case installation in position supercompression, this makes the permanent deformation or the sealing property of this rubber seal produced other infringement prematurely of this rubber seal.

Description of the invention

Consider these problems of prior art, main purpose of the present invention provides a kind of outer ship driver, and it is lighter that this outer ship driver both can weight, can also obtain higher mechanical strength, and substantially without any need for compromise.

Second purpose of the present invention provides a kind of outer ship driver, and this outer ship driver weight is lighter, and can security arrangements in a side.

The 3rd purpose of the present invention provides a kind of outer ship driver, and this outer ship driver weight is lighter, and can fixedly mount the locking device of engine case.

The 4th purpose of the present invention provides a kind of outer ship driver, and this outer ship driver has improved the engine case locking device.

The 5th purpose of the present invention provides a kind of outer ship driver, and this outer ship driver has improved the sealing property of engine case.

According to the present invention, these purposes realize that by a kind of outer ship driver is provided this outer ship driver comprises: a combustion engine; One engine installation housing, this engine installation housing is made by metallic material, so that support this driving engine; One extensional shell, this extensional shell is suspended on the engine installation housing, and holds at least a portion of gear unit therein; One bottom, this bottom is made by plastic material, is used for the bottom of covering engine, and this bottom has the lower end and the open upper end that are installed in engine installation housing upper end; One engine case, this engine case is made by plastic material, is used for the top of covering engine, and this driving engine is stamped the upper end and an open lower end of a base closed, and this open lower end is used for cooperating with the open upper end of bottom, thereby determines an engine room jointly; And a strut member, preferably to make by metallic material, this strut member is installed on the parts of a supporting engine, and the upper end that has close bottom upper end to arrange.Usually, the lower end of this strut member is fixedly mounted on the engine installation housing of supporting engine.Therefore, the main portion of bottom is strengthened by metal piece.

Preferably, this strut member comprises: at least two basic vertical parts, these two parts extend along the inside face of bottom substantially vertically; And a cramp bar, this cramp bar is installed in the upper end of this vertical part with being integral, and extends along the upper limb of this bottom.Such structure can make the mechanical strength maximum, makes the weight minimum simultaneously.Therefore, the open upper end of bottom is strengthened by this strut member, and can make when obtaining suitable rigid and mechanical strength that the weight of ship driver reduces to minimum this outside.

This cramp bar preferably extends along the inside face of bottom one side substantially straightly, and be integral the upper end that is installed in this vertical part, like this, when ship driver outside this was arranged in a corresponding side, this vertical part and cramp bar provided the mechanical strength that is enough to support this outer ship driver jointly.

According to a preferred embodiment of the present invention, this cramp bar extends along the rear portion of bottom with arcuate form, so that conform to the interior shape of this bottom, and this cramp bar extends between the upper end of this vertical part.This cramp bar can only be to extend and be not installed on this bottom along the inside face of this bottom, but also can be installed on the bottom by bolt or other fastener when needed.

This strut member can also be used to support the part of lock bolt unit, and this lock bolt unit is used to make engine case to remain on closed condition.In this article, the meaning of this lock bolt unit is meant any removably that two parts are continuous device that is used for, and includes but not limited to: hook, lock and other allied equipment.Preferably there is a device that is used for the complete off position of definite engine case this lock bolt unit, like this, can avoid the rubber seal excessive deformation that provides along the lower edge of this engine case.When repeating this excessive deformation, the sealing property of this rubber seal can be affected sooner or later.By on the lock bolt unit, providing the bonding part, can determine the complete off position of engine case at an easy rate, this bonding part is used for partly cooperating with the re-spective engagement of striker or engine case, so that determine the off position of engine case.Preferably, an elastic component is arranged between the bonding part of this composition surface and striker or engine case, so that regulate the relative position error between this composition surface and this corresponding bonding part, and can provide damping characteristics.

When the size of engine case increases, need this engine case be installed on engine installation housing or the bottom by adopting a plurality of lock bolts unit of arranging along the neighboring of engine installation housing or bottom.This lock bolt unit can be realized synchronously easily by adopting rigid connector.

One embodiment of the present of invention also comprise: at least one pair of striker, and this striker is in the lower end of engine case; The lock bolt unit of respective number, this lock bolt unit the engine installation housing with the corresponding parts of this striker in, each lock bolt unit comprises a latch board, this latch board on the engine installation housing so that in the plane of basic horizontal and be used for the position that cooperates with a corresponding striker and be used for and position that this striker is thrown off between rotate; And attaching parts, this attaching parts has first end and second end, this first end links to each other with the latch board of a lock bolt unit pivotly, this second end links to each other with the latch board of another lock bolt unit pivotly, like this, the latch board of a described lock bolt unit can carry out the motion similar to the latch board of another lock bolt unit, thus this lock bolt unit of driven in synchronism.Can also comprise when needing: a bottom, this bottom have the lower end and the upper, open end that are installed on the engine installation housing, and this upper, open end is used for cooperating with this open lower end; And a strut member, the upper end of this strut member is positioned near the open upper end of this bottom, and at least one lock bolt unit is installed in the upper end of this strut member.

Also can select or in addition, in the ship driver, the locking device that is used for engine case can also comprise outside of the present invention: at least three strikers, this striker is in the lower end of engine case; The lock bolt unit of respective number, this lock bolt unit the engine installation housing with the corresponding parts of this striker in, each lock bolt unit comprises a latch board, this latch board on the engine installation housing so that be used for the position that cooperates with a corresponding striker and be used for and position that this striker is thrown off between rotate; And at least one first rope and one second rope, one end of this first rope links to each other with the latch board of the first lock bolt unit, its opposite end links to each other with the latch board of the second lock bolt unit, one end of this second rope links to each other with the latch board of the second lock bolt unit, its opposite end links to each other with the latch board of the 3rd lock bolt unit, and this rope partly is directed along the inside circumference of engine installation housing.

Brief description of drawings

Introduce the present invention below with reference to the accompanying drawings, in the accompanying drawing:

Fig. 1 is the external side view of outer ship driver of the present invention;

Fig. 2 is the simplification birds-eye view of engine installation housing of the installation surface of expression engine case;

Fig. 3 is the simplification left view of the mounting portion of this bottom and engine case;

Fig. 4 is the birds-eye view of lock bolt unit, rear portion;

Fig. 5 is the vertical sectional view of lock bolt unit, rear portion;

Fig. 6 is the birds-eye view of anterior lock bolt unit;

Fig. 7 is the vertical sectional view of anterior lock bolt unit;

Fig. 8 is the vertical sectional view of lock bolt releasing mechanism.

DETAILED DESCRIPTION OF THE PREFERRED

Fig. 1 is the lateral plan of the whole outer ship driver of the present invention of expression.Should be suitable for being installed on the oxter plate P of ship by outer ship driver 1 by stern bracket 2.

Stern bracket 2 links to each other with a rotary shell 4, so that can be around tilting axis 3 rotations of horizontal expansion.The upper end rotor of this rotary shell 4 is the front end of supporting engine installation housing 5 rotatably, its lower end rotor supports an extensional shell 6 rotatably, this extensional shell 6 holds the part of gear unit, axle drive shaft for example, therefore, this rotary shell 4 can be around vertically extending S. A. 7 rotations in each housing.

The upper end of extensional shell 6 links to each other with engine installation housing 5, and the lower end of extensional shell 6 links to each other with the gear case 9 that is supporting screw propeller 8.Engine installation housing 5 is covered by bottom 10, the upper end of bottom 10 cooperates with engine case 11 removably, this engine case 11 defines darker bowl-type, and lower open end is arranged, thus the basic top that is installed in the driving engine E above the engine installation housing 5 that covers.

Rubber seal 12 inserts between the open end of bottom 10 and engine case 11, so that the interface between this bottom 10 and the engine case 11 is sealed with respect to water, these two parts are kept together each other by the locking device (this will introduce in the back) of the interface position between close these two parts.

Fig. 2 is the birds-eye view of outer ship driver 1 of the present invention, has represented to be used to install the end surface of engine case, and Fig. 3 is the left view of this outer ship driver.The direction of being somebody's turn to do outer ship driver is definite like this, that is, the lower end of Fig. 2 is corresponding to front end.Referring to figs. 2 and 3, by the molded engine installation housing of making 5 of aluminum alloy have in the neighboring at its rear portion 13,6 of 6 projectioies by metallic material for example the lower end 14ab to 14fb of the vertical strut member 14a to 14f that makes of steel by being installed on corresponding protruding 13 with the bolt B of extending with horizontal direction separately.Upper end 14at to the 14ft fixed bearing of these strut member 14a to 14f bottom cramp bar 15a to 15c.

Bottom cramp bar 15a to 15c is by three component set-ups, and these three parts are made by metallic material, for example is the steel part that forms by punching press.Be positioned at the support member 15a of each side of engine case and 15c and sidepiece strut member 14a and 14b and 14e and 14f so that the mode that the upper end 14at of two sidepiece strut member 14a and 14b and 14e and 14f and 14bt and 14et and 14ft are connected with each other and form one, this sidepiece strut member 14a and 14b and 14e and 14f are fixedly mounted on each side of engine installation housing 5.Arc back component 15b is fixedly mounted on the upper end 14ct and 14dt of two rear portion strut member 14c and 14d by bolt B.There is a front rack 16 that is used to support bottom 10 front portion of engine installation housing 5.This front rack 16 and engine installation housing 5 individual casts, and be fixedly mounted on the front end of engine installation housing 5 by bolt B.Left and right sides bottom cramp bar 15a and 15c have enough mechanical strengths, can support the weight of this outer ship driver 1 when being in its sidepiece with the outer ship driver of box lunch.

Bottom 10 (its upper, open end is supported by bottom cramp bar 15a to 15c) is made by plastic material, and around the bottom of driving engine E and the part that links to each other with engine installation housing 5 of extensional shell 6.In the illustrated embodiment, cramp bar 15a to 15c and strut member 14a to 14f are made by metallic material, and still, they also can be made by the material of the plastics with sufficient mechanical strength or other enhancing or not enhancing.

Be installed to also the parts of the locking device R on the upper, open end of the bottom of making by plastic material 10 for the engine case 11 that is used for to make by plastic material, provide four lock bolt unit 17a to 17d, wherein, a lock bolt unit is arranged on each sidepiece bottom cramp bar 15a and 15c, this bottom cramp bar 15a and 15c are connected with each other the sidepiece strut member 14a of respective side and 14b and 14e and 14f, and two lock bolt unit are arranged on front rack 16.By the lock bolt unit 17a to 17d that forms locking device R parts is set on the parts that metallic material is made like this, can avoids dependence to make bottom and guarantee whole mechanical strength by plastic material.

Four lock bolt unit 17a to 17d are arranged to like this, promptly, also equal substantially in lock bolt unit 17a on left and right sides bottom cramp bar 15a and the 15c and the distance between the 17b at lock bolt unit 17d in front rack 16 left sides with in lock bolt unit 17c and the distance between a lock bolt unit 17b on the right bottom cramp bar 15c that the distance between the lock bolt unit 17a on the left bottom cramp bar 15a equals substantially on front rack 16 right sides.By being arranged to equilateral locked position or isosceles triangular structure like this, wherein two become one group in front, and in addition two in both sides, and the confining force that acts between bottom 10 and the engine case 11 can be even substantially on whole periphery.

Shown in Figure 4 and 5, for these four lock bolt unit 17a to 17d, lock bolt unit 17a and 17b in both sides respectively comprise: upright opening 18a and 18b, this upright opening 18a and 18b pass integral body and are formed at cylindrical collar 23a and 23b among corresponding bottom cramp bar 15a and the 15c; And latch board 20a and 20b, this latch board 20a and 20b are supported on the position near respective aperture 18a and 18b pivotly by vertical axis 19, so as can be in horizontal surface and the position of interfering with respective aperture 18a and 18b and and respective aperture 18a and the hands-off position of 18b between rotate.Figure 4 and 5 have only been represented the lock bolt unit 17b on right side, and the lock bolt unit 17a in left side is identical with this lock bolt unit, right side 17b, and just they are each other in mirror image.

Shown in Fig. 6 and 7, two anterior

lock bolt unit

17d and 17c comprise: a pair of

holding element

21d and 21c, and this is fixedly installed on the upper surface of front rack 16 respectively to holding

element

21d and 21c by pair of bolts B; Left and right

sides latch board

20d and 20c, this left and right

sides latch board

20d and 20c are supported by

corresponding holding element

21d and 21c respectively pivotly by vertical axis 22; And an attaching parts 24, this attaching parts 24 is made (seeing that from above its middle part strikes out the elbow rod-shape) by steel plate, and this attaching parts 24 makes left and right

sides latch board

20d and 20c be connected with each other.Like this, two

lock bolt unit

17d and 17c form a sub-component by being connected to each other by rigid connector 24.

Upright opening 18d and 18c are formed among collar 23d and the 23c, each collar 23d and 23c are integrally formed in holding

element

21d and 21c and between two bolt of rear end plate B, each

latch board

20d and 20c are bearing in the position near

respective aperture

18d and 18c pivotly, so as can be in horizontal surface and the position of interfering with

respective aperture

18d and 18c and and respective aperture 18d and the hands-off position of 18c between rotate.

Aforementioned four latch board 20a to 20d are separately by twist coil spring 27 and elasticity pressurized, so that can make corresponding latch board 20a to 20d remain on position with corresponding hole 18a to 18d interference when not applying external force.Each latch board 20a to 20d is having recess N with corresponding position, the center of respective aperture 18a to 18d.

Both sides at vertical axis 22, right front latch board 20c on the front rack 16 has a coupling end at the one end, this coupling end is used for the inner strand 29a of a Boden rope 28a, at the other end of this latch board 20c a pin 30 is arranged, and is used for cooperating with push rod (will introduce in the back).

Also as shown in Figure 8, the front end of front rack 16 has: a lock bolt trigger bar 32, and this lock bolt trigger bar 32 is supported pivotly by horizontal shaft 31; And a push rod 33, this push rod 33 can slide along fore-and-aft direction.The upper end of this lock bolt trigger bar 32 can cooperate with the front end of push rod 33, and the direction that usually cooperates with the front end of push rod 33 or edge along the upper end that prevents this lock bolt trigger bar 32 make the upper end of this lock bolt trigger bar 32 leave push rod 33 front end direction and be subjected to the compressing of twist coil spring 34.

When making this lock bolt trigger bar 32 when horizontal shaft 31 rotates by the lower end to extrapolation lock bolt trigger bar 32, the upper end of this lock bolt trigger bar 32 promotes push rod 33 backward.Therefore, the pin 30 that vertically extends from the left end of the latch board 20c on anterior right side is pushed rearward, and makes latch board 20c around vertical pivot pin 22 rotations.This feasible again left end with latch board 20c of pin 30 moves backward, and its right-hand member travels forward.Like this, the inner strand 29a of a Boden rope 28a is pulled outwardly.

Simultaneously, the rotation of the latch board 20c on anterior right side passes to the latch board 20d in anterior left side by attaching parts 24.Therefore, left and right sides latch board 20c and the identical angle of 20d rotation.This rotatablely moves and makes the recess N with Centered each latch board of corresponding upright opening 18d and 18c leave

corresponding hole

18d and 18c.

Anterior right side latch board 20c links to each other with right side, the rear portion latch board 20b of lock bolt unit, right side, rear portion 17b by a Boden rope 28a.This right side, rear portion latch board 20b links to each other with left side, the rear portion latch board 20a of left side, rear portion lock bolt unit 17a by the 2nd Boden rope 28b.Be installed on a part of 16a of front rack 16 at the outer tube of first and second Boden rope 28a that extend between these three latch boards and 28b, on the centre portion of right side bottom cramp bar 15c, on the upper end 14et of right side, rear portion strut member 14e and on the upper end 14bt of left side, rear portion strut member 14b, like this, the inner strand 29a of this first and second Boden

rope

28a and 28b and the tightening force of 29b can be regulated separately.Like this, the synchronism error between two latch boards can reduce to minimum.Because as known in the art, the outer tube of Boden rope has very high flexibility, so latch board can be arranged arbitrarily.

With the inner surface portion of the corresponding engine case 11 of hole 18a to 18d striker pin 35 is arranged, shown in Fig. 5 and 7, each striker pin 35 is screwed on the horizontal component H that is installed in L shaped carriage 38 by screw thread, this L shaped carriage 38 is fixedly mounted on the inside face of engine case 11 circumferential walls at its vertical component V place, each striker pin 35 vertical orientation.

Damper lining 39 is slidably mounted on the bar part of each striker pin 35 by pad 43, and this damper lining 39 comprises the tubular piece of being made by elastic body, and its external diameter can allow it to pack in the corresponding hole 18.The free end of each striker pin 35 provides a bevelled enlarged diameter portion 40 with being integral.Collapse coil spring 41 is inserted into by pad 43 between the upper surface of the lower surface of horizontal component H of each carriage 38 and damper lining 39, so that they are pushed open each other, the lower surface of this carriage horizontal component H is near the base end of corresponding striker pin 35.

When being arranged in engine case 11 on the bottom 10, among the respective aperture 18a to 18d that striker pin 35 inserts on the bottom 10, this engine case 11 places above the driving engine E simultaneously.When among the damper lining 39 patchhole 18a to 18d and this engine case 11 when further pushing away downwards, this striker pin 35 overcomes the spring force of collapse coil spring 41 and reduces.When the enlarged diameter portion 40 of striker pin 35 arrived the recess N place of corresponding latch board 20a to 20d, this bevelled enlarged diameter portion 40 was pushed corresponding latch board 20a to 20d open.When this enlarged diameter portion 40 during by this corresponding recess N, latch board 20a to 20d is pushed back its initial position owing to the spring force of twist coil spring 27, the recess N of latch board 20a to 20d cooperates with the enlarged diameter portion 40 of corresponding striker pin 35, makes these engine case 11 locks in place.Simultaneously, the rubber seal 11 that is provided with along the open end of this engine case 11 and outer peripheral flange 42 closed contacts of bottom 10, and to sealing by engine case 11 and bottom 10 determined engine rooms.At this locking-in state, because with respect to corresponding striker pin 35 and the collapse coil spring 41 of coaxial arrangement has applied the power that bottom 10 and engine case 11 are pushed open mutually, therefore, relative with coordinate force between latch board 20a to 20d and striker pin 35 and antagonistic force effect does not need to rely on the restoring force of this rubber seal 12.

In this pinning process, in the time of above engine case 11 is pushed downwards bottom 10, joint between horizontal component H by carriage 38 and collar 23a to the 23b upper end has limited moving downward of engine case 11, is inserted with pad 43 and rubber bush 39 between the horizontal component H of carriage 38 and collar 23a to 23b.This rubber bush 39 cooperates with collapse coil spring 41 and regulate the positional error that may exist in the lock bolt unit, and buffer action can be provided.

When to extrapolation lock bolt trigger bar 32, all rotate with whole latch board 20a to 20d that Boden rope 28a links to each other with 28b along the direction that discharges this latch board 20a to 20d with attaching parts 24.This makes the enlarged diameter portion 40 of striker pin 35 and corresponding recess N throw off, and upwards pushes away engine case 11 by the spring force of the collapse coil spring 41 on striker pin 35 and by means of the restoring force of rubber seal 12.This makes striker pin 35 upward movements again, and this enlarged diameter portion 40 moves to such position, that is, make corresponding latch board 20a to 20d recess N can not with 35 engagements of striker pin.Under this state, because locking device R discharges fully, engine case 11 is risen, simultaneously damper lining 39 is pushed away respective aperture 18a to 18d.

Therefore, according to the invention described above,, make the increment of weight reduce to minimum simultaneously because therefore the strut member supporting that the bottom of covering engine bottom is made by metallic material can obtain required mechanical strength.Especially, when ship driver outside this is arranged in a side, its weight can be by forming the sidepiece cramp bar supporting of one with strut member, and the lock bolt unit that is used for making this engine case remain on closed condition can be arranged in these parts, therefore, the maintenance of the supporting of the weight of this outer ship driver and the closed condition of this engine case can both realize, and not rely on the mechanical strength of bottom.Therefore, the present invention can either make weight lighter, also can obtain very high mechanical strength, and substantially without any need for compromise.

Although the present invention describes by preferred embodiment, obviously, without departing from the scope of the invention, those skilled in the art can carry out various variations and change, and scope of the present invention is by additional claim decision.

Claims

1. outer ship driver comprises:

One combustion engine (E);

One engine installation housing (5), this engine installation housing is made by metallic material, so that support described driving engine;

One extensional shell (6), this extensional shell are suspended on the described engine installation housing, and hold at least a portion of gear unit therein;

One bottom (10), this bottom is made by plastic material, is used to cover the bottom of described driving engine, and the lower end of described bottom is installed in the upper end of described engine installation housing, and it also has an open upper end; And

One engine case (11), this engine case is made by plastic material, is used for the top of covering engine, and described driving engine is stamped the upper end and an open lower end of a base closed, this open lower end is used for cooperating with the described open upper end of described bottom, thereby determines an engine room jointly; It is characterized in that:

Described marine drive also comprises a strut member (14a-14f), and this strut member is fixedly mounted on the parts of a described driving engine of supporting, and its upper end is near the upper end of described bottom.

2. outer ship driver according to claim 1, wherein: described strut member is made by metallic material.

3. outer ship driver according to claim 1, wherein: described strut member is fixedly mounted on the described engine installation housing (5) at its lower end.

4. outer ship driver according to claim 1, wherein: described strut member comprises: at least two basic vertical parts, these two parts extend along the inside face of described bottom substantially vertically; And a cramp bar (15), this cramp bar is installed in the upper end of described vertical part with being integral, and extends along the upper limb of described bottom.

5. outer ship driver according to claim 4, wherein: described cramp bar (15a, 15c) extends along the inside face of described bottom one side substantially straightly, and is installed in the upper end of described vertical part with being integral.

6. outer ship driver according to claim 5, wherein: when ship driver was arranged in a corresponding side outside described, described vertical part and cramp bar had the mechanical strength that is enough to support described outer ship driver.

7. outer ship driver according to claim 4, wherein: described cramp bar (15b) extends along the rear portion of described bottom with arcuate form, so that conform to the interior shape of described bottom, and described cramp bar extends between the upper end of described vertical part.

8. outer ship driver according to claim 1, wherein: be used to make described engine case to keep the part and described strut member formation one of the lock bolt unit (17) of closed condition.

9. outer ship driver according to claim 8, wherein: described lock bolt unit is provided with a bonding part (23), be used for cooperating, so that determine the off position of described engine case with the re-spective engagement part (H) of described engine case or the striker (35) that is installed on the described engine case.

10. outer ship driver according to claim 9, wherein: an elastic component (39) is arranged between the described bonding part of described lock bolt unit and described striker or described engine case.