AU605765B2

AU605765B2 - Outboard motor mounting arrangement

Info

Publication number: AU605765B2
Application number: AU72913/87A
Authority: AU
Inventors: Arthur R. Ferguson; Myron T. Stevens
Original assignee: Outboard Marine Corp
Current assignee: Outboard Marine Corp
Priority date: 1981-08-17
Filing date: 1987-05-13
Publication date: 1991-01-24
Anticipated expiration: 2001-11-25
Also published as: SE8106763L; GB2138762B; SE8800185D0; GB2104023A; GB8402154D0; IT1143448B; DE3153699C2; HK50587A; GB2152893B; GB2138759A; GB2104023B; SE455493B; GB8402157D0; GB2138760B; SE8800185L; GB2138760A; GB2152893A; DE3147184C2; IT8149783A0; GB2138761B

Description

605765

-AUS'RALIA

PATENTS ACT 1952 COMPLETE SPECIFICATION Form

(ORIGINAL)

FOR OFFICE USE Short Title: Int. Cl: Application Number: Lodged: a" rt -a Complete Specification-Lodged: Accepted: Lapsed: Published: Priority: Related Art: o .0

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Of 4 TO BE COMPLETED BY APPLICANT Name of Applicant: OUTBOARD MARINE CORPORATION Address of Applicant: S Actual Inventor: Address for Service: p a 100 SEA-HORSE DRIVE

WAUKEGAN

ILLINOIS 50085

USA

Arthur R. FERGUSON and Myron T. STEVENS CLEMENT HACK CO., 601 St. Kilda Road, Melbourne, Victoria 3004, Australia.

,oComplete Specification for the invention entitled: OUTBOARD MOTOR MOUNTING ARRANGEMENT The following statement is a full description of this invention including the best method of performing it known to me:- -2- OUTBOARD MOTOR MOUNTING ARRANGEMENT The invention relates generally to marine propulsion devices, such as stern drive units and outboard motors. More particularly, the invention relates to outboard motor mounting arrangements which may alleviate travel of a propulsion unit forwardly over the transom, or into engagement with the transom.

According to the present invention there is provided a marine propulsion device comprising a transom *@osor o bracket adapted to be fixed to the transom of a boat and 0 o00 having a mounting surface for engagement with the back o o of the transom, a swivel bracket, a tilt pin pivotally :o connecting said swivel bracket and said transom bracket rearwardly of the mounting surface for tilting movement of said swivel bracket relative to said transom bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally 0400 o. horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a lower unit and a powerhead secured to said lower unit, and means directly connecting said propulsionunit and said swivel bracket for pivotal steering movement of said propulsion unit relative to said swivel bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to said swivel bracket, and such that said propulsion unit remains substantially rearwardly of said transom bracket mounting surface throughout movement of said swivel bracket from the normal operating position to the tilt position, and such that the totality of said means connecting said propulsion unit and said swivel bracket is wholly located below the tilt axis.

Atti -3- The powerhead may be secured to the lower unit below the tilt axis, and preferably at least one half of the powerhead is located below the tilt axis when the swivel bracket is in a normal operating position.

Conveniently, the means connecting the propulsion unit and the swivel bracket includes a king pin located wholly below the tilt axis; advantageously said connecting means is located below the powerhead.

Further according to the present invention there is provided a marine propulsion device comprising a transom bracket adapted to be fixed to the transom of a boat and having a mounting surface for engagement with the transom, a swivel bracket including a vertical leg having an upper end, and a lower end, and a lower leg fixedly extending rearwardly from said lower end of said vertical leg, a tilt pin extending between said upper end of said swivel bracket and said transom bracket so i as to pivotally connect said swivel bracket and said transom bracket for tilting movement of said swivel bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a powerhead and a lower unit secured to said powerhead, and means connecting said lower unit and said lower leg of said swivel bracket so as to enable steering movement of said propulsion unit about an axis transverse to the tilt i axis, and.such that said propulsion unit only pivots about the transverse axis with respect to said swivel bracket and such that said powerhead is located substantially wholly rearwardly of said tilt axis, and such that at least one-half of said powerhead is located below said tilt axis, and such that said propulsion unit remains substantially rearwardly of said transom bracket mounting surface throughout movement of said swivel -4t 0oo o 0 1 O0 a a 00 O000 00 0 00 0 04 4 0 0 0 0 .0 i o o g 1 0 0 0 0 0 4d 0 0-0 6o bracket from the normal operating position to the tilt position, and such that the totality of said means connecting said propulsion unit and said swivel bracket is wholly located below the tilt axis.

Still further according to the present invention there is provided a marine propulsion arrangement comprising a transom bracket adapted to be fixed to the transom of a boat, a second bracket including a vertical leg having an upper end and a lower end and a lower leg fixedly extending rearwardly from said lower end of said vertical leg and having an outer rearward end spaced substantially from said lower end of said vertical leg, a tilt pin extending between said upper end of said second bracket and said transom bracket rearwardly of the transom so as to pivotally connect said second bracket and said transom bracket for tilting movement of said second bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a powerhead and a lower unit secured to said powerhead and including a gearcase carrying a propulsion element, and means connecting said propulsion unit to said rearward end of said lower leg of said second bracket so as to enable steering movement of said propulsion unit relative to said second bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to said second bracket, and such that the totality of said means connecting said propulsion unit and said second bracket is wholly located below the tilt axis.

Still further according to the present invention there is provided a marine propulsion arrangement comprising a transom bracket adapted to be fixed to the i; 1i o C o 000 00 0 D00 0) transom of a boat, a second bracket including a vertical leg having an upper end, a rearward surface extending below said upper end, and a lower end and a lower leg fixedly extending rearwardly from said lower end of said vertical leg and having an outer rearward end spaced substantially from said lower end of said vertical leg and an upper surface extending forwardly from said rearward end and located substantially below said upper end of said second bracket, a tilt pin extending between said upper end of said second bracket and said transom bracket rearwardly of the transom so as to pivotally connect said second bracket and said trantsom bracket for tilting movement of said second bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a powerhead having a forward portion with front and bottom surfaces, and a lower unit secured to said powerhead rearwardly of said bottom surface of said forward portion of said powerhead, said lower unit including a gearcase carrying a propulsion element, and said marine propulsion arrangement further comprising means connecting said propulsion unit to said rearward end of said lower leg of said second bracket so as to enable steering movement of said propulsion unit relative to said second bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to said second bracket, and such that said front surface of said forward portion of said powerhead is located primarily below said tilt axis and in rearwardly spaced relation from said rearward surface of said vertical leg of said second bracket, and such that said bottom surface of said forward portion of said powerhead is located in upwardly spaced relation from said upper

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-6surface of said lower leg of said second bracket, and such that the totality of said means connecting said propulsion unit and said second bracket is wholly located below said powerhead.

Still further according to the present invention there is provided a marine propulsion device comprising a transom bracket adapted to be fixed to the transom of a boat and having a mounting surface for engagement with the back of the transom, a swivel bracket, a tilt pin directly pivotally connecting said swivel bracket and said transom bracket rearwardly of the mounting surface for tilting movement of said swivel bracket relative to said transom bracket between a normal operating position e and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a lower unit and a powerhead secured to said lower unit, and means directly connecting said propulsion unit and said swivel bracket for pivotal steering movement of said propulsion unit relative to said swivel bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to said swivel bracket, and such that said propulsion unit remains substantially rearwardly of said transom bracket mounting surface throughout nmovement of said swivel bracket from the normal operating position to the tilt position, and such that the totality of said means connecting said propulsion unit and said swivel bracket is wholly located below the tilt axis throughout the range of positions of said swivel bracket relative to said transom bracket between the normal operating position and the raised tilt position, and said transom bracket includes means for effecting a trim adjustment of said powerhead.

\o" /1 KN*tIi, I NMP_ 44 I 4S -7- In one embodiment, the transom bracket includes a pair of laterally spaced arms extending upwardly from said mounting surface, and including respective upper ends, wherein said tilt pin connects said swivel bracket and said transom bracket adjacent said upper ends of said transom bracket arms, wherein said transom bracket includes a pair of laterally spaced members which respectively include lower portions having a lower end, and a forward part, said forward parts of said lower portions comprising said mounting surface, wherein said transom bracket arms respectively form parts of said laterally spaced members and respectively extend upwardly from said forward parts of said lower portions, wherein said transom bracket further includes a top wall joining said upper ends of said arms, and wherein said transom bracket further includes a bottom wall joining said lower ends of said laterally spaced members, whereby said transom bracket constitutes a box-like frame.

Also in one embodiment, the swivel bracket includes a lower propulsion unit mounting portion to which said propulsion unit is connected, and a pair of laterally spaced arms extending upwardly from said mounting portion of said swivel bracket and including respective upper ends, wherein said tilt pin connects said swivel bracket and said transom bracket adjacent said upper ends of said swivel bracket arms, wherein said swivel bracket includes a pair of laterally spaced members which respectively include lower portions having a lower end, a forward part and a rearward part, wherein said swivel bracket arms respectively form parts of said laterally spaced members of said swivel bracket and respectively extend upwardly from said forward parts of said lower portions of said swivel bracket, wherein said swivel bracket further includes a bottom wall joining said lower ends of said laterally spaced members, r rs c us; u iiai i r c~ k ~i t" sr I whereby said swivel bracket constitutes, in part, a U-shape frame, and wherein said swivel bracket further includes a swivel block constituting said mounting portion of said swivel bracket and connected to said rearward parts of said lower portions of said laterally spaced members of said swivel bracket, and wherein said means connecting said propulsion unit and said swivel bracket includes a king pin passing through said swivel block.

In one embodiment, the marine propulsion device includes a tilt and trim assembly connected to said swivel bracket and including a mounting bracket mounted to said transom bracket and located within said box-like a frame and adjacent to the bottom thereof. The tilt and 0, *at trim assembly preferably includes a tilt cylinder-piston assembly having a first end pivotally connected to said mounting bracket about a first axis which is horizontal when said mounting bracket is fixed relative to the boat transom and having a second end pivotally connected to 1 said swivel bracket, said tilt cylinder-piston assembly being operative, in response to extension and contraction thereof, displace said swivel bracket relative to said transom bracket about said tilt axis, a trim cylinder-piston assembly including a cylinder having a blind end pivotally connected to said mounting bracket about a second axis parallel to said first axis, and a rod end, and a piston rod extending from said cylinder through said rod end and including an outer end adapted for engagement and disengagement with said swivel bracket, and means connecting said trim cylinder-piston assembly and said tilt cylinder-piston assembly for angularly displacing said trim cylinder-piston assembly about said second axis in response to angular movement of said tilt -9- 0 0 0 00 0 0 O 0 00 00 0 0 o0 0000 00 0 000 0000 0 0000 0000 0 00 0 0000 0 0 1 0 0D 00O 0 cylinder-piston assembly about said first axis occurring in response to extension and contraction of said tilt cylinder-piston assembly.

In one embodiment, the marine propulsion device includes means for passing a control line and/or a supply line through an opening in the boat transom while maintaining water-tight integrity comprising a mounting plate mounted to said transom bracket and in surrounding relation to the opening in the transom and located within said box-like frame above said mounting bracket.

In one embodiment of the marine propulsion device said means connecting said propulsion unit to said mounting portion of said swivel bracket includes a king pin extending in said swivel bracket and fixed to said propulsion unit, and means for rotatably displacing said king pin relative to said swivel bracket including an arm extending fixedly and laterally from said king pin and an extendable and contractable link pivotally connected to said arm and to said swivel bracket about axes parallel to said steering axis, and preferably said link comprises a hydraulic cylinder-piston assembly.

Two embodiments of apparatus in accordance with the present invention will now be described by way of example only with reference to the accompanying drawings, in which: Fig. 1 is a side elevational view, partially broken away and in section, of a first embodiment of a marine propulsion device in accordance with the invention.

Fig. 2 is a fragmentary sectional view, taken generally along line 2--2 of Pig. 1.

Fig. 3 is a fragmentary side elevational view, partially broken away and in section, of the marine propulsion device which is shown in Fig. 1 and which is illustrated in a fully raised position.

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li;- Fig. 4 is an enlarged fragmentary view taken generally along line 4--4 of Fig. 3.

Fig. 5 is a schematic view of a hydraulic control circuit incorporated in the marine propulsion device shown in Figs. 1 and 3.

Fig. 6 is an enlarged fragmentary and partially schematic side elevational view, partially in section, of a portion of the device shown in Fig. 1.

Fig. 7 is an enlarged, exploded perspective view of various of the components of the marine propulsion device shown in Figs. 1 and 3, and Fig. 8 is a view similar to that of Fig. 1 showing a further embodiment of a marine propulsion device in accordance with the invention.

Before explaining the two illustrated embodiments of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawings.

The invention is capable of other embodiments and of being 0 practiced and carried out in various ways. Also, it is to o be understood that the phraseology and terminology employed herein is for the purpose of description and should not be 0 regarded as limiting.

0 00 GENERAL DESCRIPTION 0 006Shown in Figs. 1 to 7 of the drawings is a marine propulsion device which is in the form oi. an outboard motor 04 20 11 and which includes a generally conventional propulsion 0.00 unit 13 incorporating a powerhead 15 with an internal 0 0 o 0 combustion engine 17. The propulsion unit 13 also includes 0 00 a lower unit 19 incorporating a rotatably mounted propeller o~o 21 drivingly connected to the engine 17 through a selectively operable reversing transmission 23.

00 00The outboard motor 11 also includes a mounting 0 0 0 o 0 assembly 31 for mounting the propulsion unit 13 to the rear 0 0 of a boat transom 33 such that the propulsion unit 13 is vertically swingable between (See Fig. 1) a lowermost running position with the propeller 21 submerged in water and (See Fig. 3) a fully raised position with the propeller 21 out of the water, and such that the propulsion unit 13 does not engage the transom 33 and/or travel forwardly over the top or upper edge 34 of the transom when the propulsion unit 1t3 is elevated to the fully raised position.

The propulsion unit mounting assembly 31 comprises a transom bracket assembly 35 including (See Figs. 1, 2 and 7) a mounting portion 37 adapted to be secured, by bolts or other suitable ieans, to the rear of the boat transom 33, and a pair of laterally spaced arms 39 extending upwardly from the mounting portion 37 and including an upper end 40 having means for pivotally- mounting a swivel bracket assembly 51 for swinging movement of the swivel bracket assembly 51 about an axis 53 which is horizontal when the transom bracket assembly 35 is boat mounted and relative to the transom bracket assembly More particularly, while various arrangements can be employed, the transom bracket assembly 45comprises (See especially Fig. 7) a pair of laterally P a a spaced side members or legs 61 and 63 which respectively include forward surfaces 65 and 67 adapted to engage the boat transom 33 and which constitute part of the mounting portion 37.

The spaced side members 61 and 63 are generally L-shaped, each including a lower portion having a forward part including the surfaces 65 and 67 and a rearward part 69 extending rearwardly from the 0 00 mounting portion 37 and having a substantial height corresponding, in general, to the height of the mounting portion 37, and a lower margin. The arms 39 "I extend upwardly and somewhat rearwardly from the lower portion.

0 0 The side members 61 and 63 are laterally connected at the top and bottom to provide a general.ly hollow, box-like frame or structure. more particularly, the side members and 63 'respectively I X 00 00 0 0 0 o o o 0 0 0000 S0 0 00 0 O0 0 0 Q 0 0 o 0 000 0 90 0 0 0 extending flanges 75 which are interconnected by a lower transverse reinforcing member or bottom plate 77 to transversely strengthen the bottom of the transom bracket assembly 35. At the top, the arms 39 are transversely connected by an upper transverse member in the form of an angle-like member 79 providing the transom bracket assembly 35 with a top wall 81 and forming a generally box-like frame having a hollow interior.

The forward margins of the arms 39 of the transom bracket assembly 35 above the mounting portion 37 are also transversely connected by a decorative cover 83 which covers or merges with the top wall 81.

While other arrangements could be employed, 15 the means pivotally mounting the swivel bracket assembly 51 from the transom bracket assembly comprises a suitable tilt pin 91 extending horizontally below the upper transverse member 79 and through the upper ends of the arms 39 of the transom bracket 20 assembly 35 and through the upper end of the swivel bracket assembly 51.

The swivel bracket assembly 51 is also generally L-shaped and includes a lower horizontally extending leg 93 having a rearward part 95 and a forward part 97, together with a generally vertical leg 99 which extends upwardly from the forward part 97 of the lower leg 93. More particularly, while other constructions could be employed, in the illustrated construction, the swivel bracket assembly 51 comprises a U-shaped assembly 101 which provides the vertical leg 99 and the forward part 97 of the lower leg 93, and a swivel block or member 103 which is removably connected n:' 9 PI i" to the assembly 101 by a plurality of bolts 104 and which includes a vertical bore 105 adapted to receive a king pin 107 fixed to and forming a part of the propulsion unit 13.

Still more particularly, in the illustrated construction, the U-shaped assembly 101 comprises a pair of vertical side members 109 and 111 which are generally of L-shape and which are laterally spaced apart at a distance somewhat less than the spacing of the transom bracket side members 61 and 63. Adjace:nt their lower ends, the swivel bracket side members 109 and 111 are laterally connected by a bottom plate 113 e0 oo which is located above the bottom plate 77 of the 0 6 0 transom bracket assembly 35. Toward the upper end of the swivel bracket vertical leg 99, but below the tilt pin 91, the swivel bracket side members 109 and 111 are laterally connected by an upper bracket 115 which laterally strengthens the upper part of the U-shaped assembly 101 and which also provides an anchor for a 20 tilt cylinder-piston assembly 117 still to be described 00 °o (See Fig. 1).

0o 40 When the propulsion unit 13 is in the running o o position, the swivel bracket assembly 51 is received 0 within the hollow interior of the transom bracket assembly 35 with the swivel block 103 extending rearwardly therefrom.

0o The propulsion unit 13, as previously 09*9.: explained, is generally of conventional construction and includes the before-mentioned king pin 107 which extends through the swivel block bore 105 and which is suitably fixedly connected at the top and bottom, preferably through suitable rubber mounts (not shown) I' 7

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7 00 D0 0 0 0 0 O0 0 0 Q 00 0 0 00 0 o 00 0 0 O 0 0 0 oo0 0 o 0 0o 0 0 0 to the propulsion unit 13 so that rotary king pin movement in the swivel bracket bore 105 effects steering movement of the propulsion unit 13 about the rotary axis of the king pin 107.

Means are provided for effecting steering movement of the propulsion unit 13 relative to the swivel bracket assembly 51. While other arrangements can be employed, in the preferred and illustrated construction, such means comprises an extendable and contractable link which, preferably, is in the form of a hydraulic cylinder-piston assembly 121, which, at one end, is pivotally connected to a vertically extending stud 123 supported on the rear margin of one of the swivel bracket side members 109 and 111, and which, at 15 the other end, is pivotally connected to a stud 125 extending from an arm 127 fixedly projected laterally from the king pin 107. Accordingly, supply of hydraulic fluid through opposed conduits 129 and 131, will serve to either contract or expand the hydraulic cylinder-piston assembly 121, and thereby effect steering movement of the propulsion unit 13 relative to the swivel bracket assembly 51 and therefor relative to the boat transom 33. Preferably, the king pin 107 includes, in addition to the laterally projecting arm 127, an oppositely and laterally extending arm 133 with a vertically extending bore 135 and the other of the swivel bracket side members 109 and 111 also includes a vertical extending bore 137 so that the steering hydraulic cylinder-piston assembly 121 may be selectively attached to either side of the fore and after centerline of the marine installation.

Means are provided for vertically swingably displacing the swivel bracket assembly 51, and lmr.- A4 00 o o o o 0 000 0 0 0 o0 0 o Q 0 0 0o 0 0 0 00 00 0 00 S0 0 a00 0 00 0 0 0 0 04 0 0 000 0 0 therefore the propulsion unit 13, between the lowermost running position forming the lower end of a trim range (See Fig. 1) and the uppermost or raised position (See Fig. 3) forming the upper end of a tilt range which extends upwardly from the trim range.

While other constructions could be employed, in the illustrated construction, the means for vertically swingably displacing the swivel bracket assembly 51 comprises (See especially Fig. 6) an essentially self-contained tilt and trim assembly 151 including a mounting bracket 153 which is separately mountable by suitable means, such as bolts (not shown), to the mounting portion 37 of the transom bracket side members 61 and 63, adjacent to the bottom of the 15 box-like transom bracket frame. The mounting bracket 153 supports an electrically operated reversible hydraulic fluid pump 155, together with a fluid flow hydraulic circuit or control system 157 (See Fig. communicating with both the before-mentioned tilt 20 cylinder-piston assembly 117 and a trim cylinder-piston assembly 161. The electrically operated pump 155 includes a motor 163 which extends inwardly through an opening 165 in the boat transom 33 and which is electrically connected to a battery or other source of 25 power (not shown) forwardly of the boat transom 33.

More particularly, (as shown in Figs. 1 and 6) the tilt cylinder-piston assembly 117 includes a tilt cylinder 167 and is pivotally connected, at one end, to a transverse mounting stud 169 extending horizontally and laterally between horizontally spaced arm portions 171 extending rearwardly on the mounting bracket 153 and is pivotally connected, at its other end, to the upper bracket 115 of the swivel bracket assembly 51.

The trim cylinder-piston assembly 161 includes a trim cylinder 173 and is pivotally mounted, at the blind end of the trim cylinder 173, to a transom mounting stud 175 extending between the horizontally spaced mounting bracket arm portions 171 in rearward parallel relation to the stud 169 pivotally connected to the tilt cylinder-piston assembly 117. Extending rearwardly from the other or rod end of the trim cylinder 173 is (See Figs. 1 and 3) a piston rod 177 having an outer end 179 adapted for engagement with a r> socket 181 formed in the forward surface of the swivel block 103 and between the spaced swivel bracket side 0090o0 15 legs or members 109 and 111.

o" o As the outer end 179 of the trim piston rod 177 is not fixedly pivotally connected to the swivel bracket assembly 51, as is the tilt cylinder-piston 0 OQ0 assembly 117, and in order to locate the outer end 179 20 of the trim piston rod 171 in position for engagement 00 So0o with the socket 181 as the swivel bracket assembly 51 o o°o swings vertically downwardly from the tilt range into 0o the trim range, means are provided for angularly oo 0" displacing the trim cylinder-piston assembly 161 in accordance with the angular movement of the tilt cylinder-piston assembly 117 which accompanies 00 0a S0 extension and contraction of the tilt cylinder-piston assembly 117. Accordingly, in the disclosed construction, the adjacent ends of the tilt cylinder 167 and trim cylinder 173 are respectively provided with gear segments 191 and 193 which are in intermeshing engagement so as to maintain the trim ^v

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00 Oo o 0 0 Q0 0 09 0 00 0 O 0 o o0 0 0 0 00 0 8 O 09 0 0 0 O o 00 0tl 0 0 0 0 0 O 0 Paos cylinder 173 and its trim piston rod 177 in alignment with the socket 181 in the swivel bracket block 103 during vertical swinging of the swivel bracket assembly 51 accompanying contraction and extension of the tilt cylinder-piston assembly 51.

The hydraulic control circuit 157 between the reversible electric pump 155 and the tilt and trim cylinder-piston assemblies 117 and 161 is shown in Fig.

and is generally of conventional construction.

Briefly, the pump 155 includes a first discharge port 195 which is connected, through a first line or conduit 197 and through check valve 212, with the lower or adjacent ends of each of the tilt and trim cylinders 167 and 173. The pump 155 also includes a second 15 discharge port 199 which is connected, through a second line or conduit 200, through check valve 213, and through a third conduit or line 202 with the other or outer end of the trim cylinder 173. In addition, the second discharge port 199 is connected, through conduit 20 200, through check valve 214, and through a fourth condiiit or line 201, with the other or outer end of the tilt cylinder 167. The pump 155 is in fluid communication with a sump 203 which is supported by the mounting bracket 153. Pressure relief valves 205 and 207 are respectively connected between the first and second lines 197 and 200 and the sump 203. In addition, a manually operated releasing valve 211 affording fluid flow between the first and fourth lines 197 and 201 is provided in order to permit manual swinging displacement of the swivel bracket assembly 51 relative to the transom bracket assembly 35. It is particularly noted that, apart from securing of the (7 0 0 0 0 0 0 0 00 00 4 0 00 00 0 00 0 00 40 0 0 s 0 0 mounting bracket 153 to the transom bracket assembly the pivotal connection between the swivel bracket assembly 51 and the outer or upper end of the tilt cylinder-piston assembly 117 is the only connection with the other outboard motor components which is made or broken in connection with installation or replacement of the trim and tilt assembly 151.

Means are provided for passing control or supply lines in the form of control cables and conduits through the boat transom 33, while maintaining watertight integrity thereof, so as to facilitate passage of such control cables and conduits through the interior of the box-like transom bracket assembly and with respect to at least some of the cables and conduits, to facilitate passage of control cables or conduits rearwardly of the front cover 83 and between the horizontal tilt pin 91 and the top wall 81 of the transom bracket assembly 35 and/or just below the horizontal tilt pin 91, and thence to connection with various of the components of the outboard motor. More specifically, in the disclosed construction, such cables and conduits include (See Fig. 4) push-pull cables 221 and 223, respectively connected to and controlling the engine throttle 235 and the reversing transmission 23, as well as a fuel line 237 and a pair of fluid conduits or supply lines 239 and 241 communicating with the steering cylinder-piston assembly conduits 129 and 131 so as to control steering of the propulsion unit 13, and an electrical harness 243 which includes electrical connections between the propulsion unit 13 and a battery (not shown) and an ignition control. Less than all of the above cables and conduits or more than the above-enumerated cables and conduits can be passed through the boat transom 33.

While various other constructions could be employed, in the illustrated construction, the means for passing such cables and conduits through the boat transom 33 comprises a mounting bracket or plate 251 which is adapted to be mounted to the mounting portions 37 of the transom bracket assembly side members 61 and 63 between the transom bracket legs or side members 61 and 63 and in such manner as to sealingly engage the transom above the tilt and trim assembly mounting bracket 153. The mounting plate 251 includes an outer o« «oo periphery or margin 253 which extends beyond the margin of a hole or opening 255 in the boat transom 33 through 15 which the cables and conduits pass.

Q#°0 A gasket 257 is provided between the outer O^o margin 253 of the mounting plate 251 and the boat o% otransom 33 to maintain watertight integrity.

Still more particularly, the mounting plate 251 includes a central portion 259 which is located o inwardly of the peripheral portion 253, which includes o 0o an inclined surface 261 extending upwardly and forwardly into the transom opening 255, and which ao, includes a bore or opening 263 for upwardly and rearwardly inclined passage there-through of the electrical harness 243, as well as a bore or opening a 265 for upward and rearward inclined passage .,,there-through of the throttle and shift control cables 221 and 223. Suitable sealing means, such as respective grommets 273 and 275 engaging both the inclined surface 261 and the cables and/or conduits 243, 221 and 223, together with anchors 283 and 285 0 4 D a O O0 DO 0a 00 o 00 0 Oao 04 O 0 D 0 6s iO 0 0g 00 P0 6O o suitably connected to the mounting plate 251 and arranged to maintan the grommets 273 and 275 in sealing engagement with the lines 243, 221 and 223 and with the inclined surface 261 are provided so as to maintain watertight integrity.

In connection with the fuel and hydraulic fluid steering connections, the fuel line 237 and the steering fluid conduit lines 239 and 241 are suitably connected to the mounting plate 251 and extend through the mounting plate 251 from the forward to the rearward surfaces thereof and forwardly of the boat transom 33.

Provided on the mounting plate 251 and extending rearwardly are suitable respective nipples or fittings 293, 295, and 297 which communicate with the forwardly extending conduits 237, 239 and 241 and which are adapted to be connected to a rearwardly extending fuel line 299 connected to the engine 17 and to the hydraulic steering conduits 129 and 131.

It is also noted that the throttle cable 221, 20 and the shift cable 223 extend upwardly and rearwardly behind the frontal wall or cover 83 and over the top of the tilt pin 91 and under the top wall 81 and thence to connections with the propulsion unit 13. The electrical harness 243, the fuel line 299, and the hydraulic 25 steering conduits 129 and 131 extend upwardly and rearwardly behind the frontal wall or cover 83 and under the bottom of the tilt pin 91 being secured thereto by clamp 85, (See Fig. 4) and thence to connections with the propulsion unit 13.

Means 301 are also provided (See Fig. 6) for sensing and informing the operator of the angular tilt or trim position of the propulsion unit 13. Thus, in ~i wvrw-- 2- 0 0 009 00 000 000 00 U 9 06 the disclosed construction, there is provided a remote indicator 303 which advises the operator of the angular position of the propulsion unit 13 within the trim range and which is electrically connected to a sensing device in the form of a variable resistor or potentiometer 305 having a wiper forming an interior part of a pivotally mounted lever having an exteriorly located arm 311.

The sensor or resistor 305 is supported on a bracket member 315 which is fixed on the mounting bracket 153 of the tilt and trim assembly 151 either directly or through other components fixed to the mounting plate 153. More particularly, the sensor or resistor 303 is fixedly mounted on a leg 317 which, in 15 turn, is fixed to the bracket member 315 ao that the outer end of the arm 311 engages the under surface of the trim cylinder 173. Preferably, the lever or arm 311 is baised by a suitable spring 319 into engagement with the undersurface of the trim cylinder 173. Thus, 20 angular movement of the trim cylinder 173 about the axis of the mounting stud 175 in response to angular movement of the propulsion unit 13 about the tilt axis 53 results in positioning of the arm 311 in accordance with the position of the propulsion unit 13 and provides for a suitable indication at the remote indicator 303.

rt is believed that electrical circuits for connecting the indicator 303 and sensor or resistor 305 are w;ell known in the art and need not be described.

in order to accomodate mounting on boat transoms having different angles with respect to the vertical, the arrangemient for mounting the leg 317 to a,.,A the bracket member 315 includes spaced first and second bolt holes 321 and 323, respectively, in one of the bracket member 315 and the leg 317, together witn spaced first and second slots 331 and 333, respectively, in the other of the bracket member 315 and the leg 317, and a pair of bolts 341 and 343 which are insertable through the first and second bolt holes 321 and 323 and through the first and second slots 331 and 333 in order to vary the attitude of the leg 317 to accomodate boats having different transom angles.

Alternatively, the bracket member 315 or leg 317 could be fixed to the transom bracket assembly In addition, if desired, the resistor arm 311 could be supported from the transom bracket assembly 35 or swivel bracket assembly 51 for engagement with the tilt cylinder 167.

In order to enclose at last some of the control cables or lines 221, 223, 237, 239, 241, and 243 and to substantially enclose the tilt cyclinder 117 o 20 as well as the cylinder, of the steering cylinder-pso a assembly 121 during normal running orientation of the propulsion unit 13, the swivel bracket assembly 51 includes (See rig. 7) rear covers 401 and 408 which, toete the laterally spaced side members 99 and coes401 and 408 extend trans3versely between the theloerend thereof, also extends rearwardly to subsantillyenclose the cylinder of the steering cylindor-piston assembly 121. The rear covers include, at the P rearward end thereof, lower vertical walls 403 including horizontally extending slots 405 through which extend 00 o 0 9 0 090030 o 0000 09 0@ 0 0(~ 0 00 00 9 00 the piston rod of the steering cylinder-piston assembly 121, as well as the fuel line 237 and the electrical harness 243. The fuel line 237 and electrical harness 243 enter into the power head 15 through the bottom pan 407 of the power head 15 in the area above the steering axis or king pin bore 105 so as to minimize movement of the fuel line 237 and electrical harness 243 during steering action.

The throttle and shift control cables 221 and 223 exit from the rear of the swivel bracket housing adjacent the top and at one side thereof to facilitate connection thereof to the usual connections provided in prior outboard motor constructions.

in summary, the marine propulsion device 11 15 includes a propulsion unit 13 which is adapted to be swung upwardly from a lowered running position (See Fig. 1) to a raised position (see Fig. 3) without engaging the boat transom 33 or passing forwardly over the top edge 34 thereof. in addition, the arrangement 20 for trimming and tilting the propulsion unit 13 includes an essentially self-contained tilt and trim assembly 151 which is mounted on the ~transom bracket assembly 35. Still further in addition, the various cables and conduits which control operation of the marine propulsion device 11 are passed through the boat transom opening 255 by means of the plate 251 which is also mounted to the transom bracket assembly 35 and above the tilt and trim assembly 161. Thus, the disclosed propulsion unit 13 neither engages. the boat 30 transom 33 or travels over the top edge 34 thereof during tilting. Nor do any control cables or supply conduits pass over the top edge 34 ot the boat transom 33 In routo to the marine propulsion device 11.

*0 00 0 0 If desired, the mounting bracket 153 of the tilt and trim assembly 151 could be mounted directly to the boat transom independently of the transom bracket assembly as could the mounting plate 251.

Shown in Figure 8 of the drawings is a second embodiment of a marine propulsion device in accordance with the invention which is in the form of an outboard motor 511, which is illustrated in mounted condition on the back of a transon 513 of a boat 515, and which is arranged for upward tilting movement through the tilt range so as to avoid position of any substantial part of the outboard motor forwardly of the transom.

More particularly, the outboard motor 511 includes a transom bracket 521 which can be of generally conventional 00 15 construction, which is adapted to be suitably fixed to the board transom 513, as by bolts or otherwise, and which has 0 0 C' a generally flat mounting surface 523 for engagement with 00 0 00 a the back of the boat transom 513.

00 Also included in the outboard motor is a swivel 00 0 20 bracket 525 which, in general, is shaped, including a vertical leg 527 having upper and lower ends 529 and 531, 00" respectively, and a rearward generally vertical surface 533 0 00 extending below the upper end 529, together with a lower 0 006 leg or arm 535 which extends rearwardly of the lower end 0 25 531 of the vertical leg 527, which includes an outer or 0 0rearward end 537 spaced substantially from the rearward surface 533 or lower end 531 of the vertical leg 527, and 00 which includes an upper surface 539 which extends from the outer rearward end 537 to the rearward surface 533 of the 0 30 vertical leg 527 and which is located substantially below the upper end 529 of the swivel bracket vertical leg 527.

Means are provided on the upper end 529 of the swivel bracket 525 and on the transom bracket 521 for pivotall~y connecting the swivel bracket 525 and the transom bracket 521 for swivel bracket tilting movement about a tilt axis 541 relative to the transom bracket 521 between a normal running position as shown in full lines and a raised tilt position as shown in chain dotted outline. When the transom bracket 525 is attached to the boat transom 513, the tilt axis 541 of such movement is generally horizontal.

Various known commercial arrangements can be employed for tiltably connecting the swivel and transom brackets 521 and 525, as for instance, a tilt tube which extends through mating apertures in the transom and swivel brackets.

In addition, the swivel bracket 525 and transom bracket 521 can be provided with conventional means f~or adjusting the trim of the swivel bracket 525 relative to the transom bracket 521 so as to accommodate variations in S the angle of the boat transom, for providing a reverse lock, and/or for providing power trimming and/or tilting.

Also included in the outboard motor 511 is a propulsion unit 551 which can be generally of conventional construction except as noted herein and as shown in the drawing. more partioularly, the propulsion unit 551 includes a powerhead 553 including an internal combustion engine 555 and a cover 557 therefor. In addition, the propulsion unit 551 includes a lower unit 559 which is rigidly connected to the powerhc~a6 553 and which includes a driveshaft housing 561 tetminating, at its lower end, with a cavitation plate 563, and with a gear case or box portion 565 which is connected to the driveshaft housing 563. and located below the cavitation plate 563 and which supports a propeller 567 carried by a propeller shaft 569. As is conventional, the propeller shaft 569 is connected through 30 a gear transmission 571 with a drive train 573 which extends from the engine crankshaft. When the propulsion unit 551 is connected to the swivel bracket 525, as will be explained, and when the outboard motor 511 is mounted on the boat transom 513 and located in the normal running or operating position, the cavittation plate 562 in located, as 2-1 shown, at about the same level as the bottom of the central part of the boat transom 513.

As shown, the driveshaft housing 561 is of considerably reduced height, as compared to prior commercial construction, and is connected to the rearward portion of the powerhead 553. In addition, the gear case 56 5 extends considerably forwardly of the driveshaft housing 561, thereby providing a recess 575 which is located between the gearcase 565 and powerhead 553 and which receives the outer rearward end 537 of the swivel bracket 525. Preferably, the driveshaft 573 is inclined upwardly and forwardly with the propulsion unit 551 having a similar inclined construction. In the construction illustrated, the driveshaft 573 extends upwardly and forwardly at an angle of about 70 0to the horizontal. In other words, the driveshaft 573 extends downwardly and rearwardly at an angle of about 20 0 tothe vertical.

Means 575 are provided on the lower unit 559 between the powcrhcad 553 and the gearcase 565 or cavitation plate 563 and on the rearward end 537 of the lower leg 535 of the swivel bracket 525 for pivotally connecting the propulsion unit 551 and the swivel bracket 525 for pivotal movement of the propulsion unit 551 relative to the swivel bracket 525 about a steering axis 579 which is transverse to the tilt axis 541 and generally parallel to and forwardly of the driveshaft 573. Various arrangements can be employed. For instance, the rearward outer end 537 of the swivel bracket 525 can he provided with a vertically inclined bore 581 receiving a king pin 30 583 which, at its upper and lower ends, projects outwardly from the bore 581 and has attached thereto upper and lower arms 585 which extend rearwardly .id are attached to the driveshaft housing 561 so as to support the propulsion unit 551. from swivel bracket 52S.

Alternatively, the king pin 583 could be received in suitable sockets (not shown) within or on the gearcase 565 and powerhead 553.

When the propulsion unit 551 is assembled to the swivel bracket 525, the powerhead 553 is so located that the forward portion 591 thereof has a forward surface 593 which is located principally totally below the tilt axis 541 and in rearwardly spaced relation from the rearward surface 533 of the swivel bracket vertical leg 527. In addition, the forward portion 591 of the powerhead 553 includes a lower or bottom surface 595 which is located in upwardly spaced relation from the upper surface 539 of the lower leg 535 of the swivel bracket 525.

Any suitable means connected to the propulsion unit 551 can be employed for securing displacement of the propulsion unit 551 relative to the swivel bracket 525.

It is especially noted that substantially more than one-half of the bulk of the powerhead 553 is located below o* the tilt axis 541 and that the area defined between a line S. 599 passing upwardly and rearwardly through the tilt axis 20 541 and intersecting the plane of the mounting surface 533 at an angle of about 550, is clear or free of the powerhead 553. It is also especially noted that essentially the Sentire powerhead 553 is located rearwardly of the tilt axis S0" 541. In addition, the tilt axis 541 is located rearwardly 25 of the transom 513 and no part of the propulsion unit 551 *0 0 or swivel bracket 525 extends forwardly over the transom 513 when the outboard motor is in a normal running position.

The result of this general arrangement is -that the propulsion unit 551 can be swung upwardly through an angle 30 of about 450 so as to locate the gearcase 565 out of the water and the driveshaft 573 at an angle of about 250 to the horizontal, without locating any material part of the propulsion unit 551 or swivel bracket 525 forwardly of the plane of the transom bracket mounting surface 523.

Accordingly, outboard motors of the configuration described 4 can be mounted on boats constructed with a full transom, without the customary upwardly open cutout or notch, and on boats constructed without a motor well forwardly of the transom. As a result, and as compared to inboard and stern drive units, additional interior room is provided as the entire interior space of the boat is available for use by the occupants or users. Still further, the disclosed construction can be employed with boats having relatively high transoms, thereby serving to keep water out of the boat when travelling in reverse and in high seas.

Features of the embodiment described with reference to Figs. 1 to 7 may be incorporated in the embodiment illustrated in Fig. 8 and vice versa.

This application and co-pending applicationf, no's.

o-o" .15 3377/85, a73485 and3S735-/85 respectively directed to the trimming arrangement, the tilt measuring arrangement and the control and/or supply line arrangement disclosed herein are divided out of application no. 77879/81 directed to the steering arrangement disclosed herein.

I i 0 o a o 4 a 0 00 a~s *I,

Claims

3. A marine propulsion device according to claim i or 2, wherein the means connecting the propulsion unit and the swivel bracket includes a king pin. -31-
4. A marine propulsion device according to any one of the preceding claims, wherein at least one half of the powerhead is located below the tilt axis when the swivel bracket is in a normal operating position. A marine propulsion device comprising a transom bracket adapted to be fixed to the transom of a boat and having a mounting surface for engagement with the transom, a swivel bracket including a vertical leg having an upper end, and a lower end, and a lower leg fixedly extending rearwardly from said lower end of said vertical leg, a tilt pin extending between said upper Ott;,% end of said swivel bracket and said transom bracket so as to pivotally connect said swivel bracket and said transom bracket for tilting movement of said swivel bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a powerhead and a lower unit secured to said powerhead, and means connecting said lower unit and said lower leg of said swivel bracket so as to enable steering movement of said propulsion unit about an axis transverse to the tilt i 'axis, and such that said propulsion unit only pivots about the transverse axis with respect to said swivel bracket and such that said powerhead is located *substantially wholly rearwardly of said tilt axis, and such that at least one-half of said powerhead is located below said tilt axis, and such that said propulsion unit remains substantially rearwardly of said transom bracket mounting surface throughout movement of said swivel bracket from the normal operating position to the tilt position, and such that the totality of said means -32- connecting said propulsion unit and said swivel bracket is wholly located below the tilt axis.
6. A marine propulsion arrangement comprising a transom bracket adapted to be fixed to the transom of a boat, a second bracket including a vertical leg having an upper end and a lower end and a lower leg fixedly extending rearwardly from said lower end of said vertical leg and having an outer rearward end spaced substantially from said lower end of said vertical leg, a tilt pin extending between said upper end of said second bracket and said transom bracket rearwardly of the transom so as to pivotally connect said second bracket and said transom bracket for tilting movement of said second bracket between a normal operating position rt and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is .4 SIt fixed to the boat transom, a propulsion unit including a powerhead and a lower unit secured to said powerhead and including a gearcase carrying a propulsion element, and means connecting said propulsion unit to said rearward 4#4t *&to end of said lower leg of said second bracket so as to ,,enable steering movement of said propulsion unit '4 relative to said second bracket about an axis transverse cr~r to the tilt axis, and such that said propulsion unit o.,i only pivots about the transverse axis with respect to said second bracket, and such that the totality of said means connecting said propulsion unit and said second bracket is wholly located below the tilt axis.
7. A marine propulsion arrangement comprising a transom bracket adapted to be fixed to the transom of a boat, a second bracket including a vertical leg having an upper end, a rearward surface extending below said upper end, and a lower end and a lower leg fixedly I I-33- extending rearwardly from said lower end of said vertical leg and having an outer rearward end spaced substantially from said lower end of said vertical leg and an upper surface extending forwardly from said rearward end and located substantially below said upper end of said second bracket, a tilt pin extending between said upper end of said second bracket and said transom bracket rearwardly of the transom so as to pivotally connect said second bracket and said transom bracket for tilting movement of said second bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a powerhead having a forward portion with front and bottom surfaces, and a lower unit secured to said powerhead rearwardly of said bottom Ssurface of said forward portion of said powerhead, said lower unit including a gearcase carrying a propulsion element, and said marine propulsion arrangement further comprising means connecting said propulsion unit to said rearward end of said lower leg of said second bracket so as to enable steering movement of said propulsion unit relative to said second bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to J"T* said second bracket, and such that said front surface of said forward portion of said powerhead is located be primarily below said tilt axis and in rearwardly spaced relation from said rearward surface of said vertical leg of said second bracket, and such that said bottom surface of said forward portion of said powerhead is located in upwardly spaced relation from said upper surface of said lower leg of said second bracket, and such that the totality of said means connecting said propulsion unit and said second bracket is wholly 4 located below said powerhead. -34-
8. A marine propulsion device according to any one of claims 1 to 5, wherein the totality of said means connecting said propulsion unit and said swivel bracket is located wholly below the tilt axis throughout the range of positions of said swivel bracket relative to said transom bracket between the normal operating position and the raised tilt position.
9. A marine propulsion device according to any one of the preceding claims, wherein said transom bracket includes means for effecting a trim adjustment of said powerhead. 6
10. A marine propulsion device comprising a S, transom bracket adapted to be fixed to the transom of a boat and having a mounting surface for engagement with the back of the transom, a swivel bracket, a tilt pin directly pivotally connecting said swivel bracket and said transom bracket rearwardly of the mounting surface for tilting movement of said swivel bracket relative to said transom bracket between a normal operating position and a raised tilt position and about a tilt axis which is generally horizontal when said transom bracket is fixed to the boat transom, a propulsion unit including a lower unit and a powerhead secured to said lower unit, and means directly connecting said propulsion unit and said swivel bracket for pivotal steering movement of said propulsion unit relative to said swivel bracket about an axis transverse to the tilt axis, and such that said propulsion unit only pivots about the transverse axis with respect to said swivel bracket, and such that said propulsion unit remains substantially rearwardly of said transom bracket mounting surface throughout movement of said swivel bracket from the normal operating position to the tilt position, and such that B ai i the totality of said means connecting said propulsion unit and said swivel bracket is wholly located below the tilt axis throughout the range of positions of said swivel bracket relative to said transom bracket between the normal operating position and the raised tilt position, and said transom bracket includes means for effecting a trim adjustment of said powerhead.
11. A marine propulsion device in accordance with claim 1 wherein said transom bracket includes a pair of laterally spaced arms extending upwardly from said mounting surface, and including respective upper ends, wherein sAicd tilt pin connects said swivel bracket and said transom bracket adjacent said upper ends of said transom bracket arms, wherein said transom bracket includes a pair of laterally spaced members which respectively include lower portions having a lower end, and a forward part, said forward parts of said lower portions comprising said mounting surface, wherein said transom bracket arms respectively form parts of said laterally spaced members and respectively extend upwardly from said forward paxrts of said lower portions, wherein' said transom bracket further includes a top wall joining said upper ends of said arms, and wherein said transom bracket further includes a bottom wall joining said lower ends of said laterally spaced members, whereby said transom bracket constitutes a box-like frame.
12. A marine propulsion device according to claim 11 wherein said swivel bracket includes a lower propulsion unit mounting portion to which said propulsion unit is connectedt and a pair of laterally spaced arms extending upwardly from said mounting portion of said swivel bracket and including rospoctive -36- @Q ~I t 0 upper ends, wherein said tilt pin connects said swivel bracket and said transom bracket adjacent said upper ends of said swivel bracket arms, wherein said swivel bracket includes a pair of laterally spaced members which respectively include lower portion~s having a lower end, a forward part and a rearward part, wherein said swivel bracket arms respectively form parts of said laterally spaced members of said swivel bracket and respectively extend upwardly from said forward parts of said lower portions of said swivel bracket, wherein said swivel bracket further includes a bottom wall joining said lower ends of said laterally spaced members, whereby said swivel bracket constitutes, in part, a U-shape frame, and wherein said swivel bracket further includes a swivel block constituting said mounting portion of said swivel bracket and connected to said rearward parts of said lower portions of said laterally spaced mombers of said swivel bracket, and wherein said means connecting said propulsion unit and said swivel bracket includes a king pin passing through said swivel block.
13. A marine propulsion device according to claim 12 wherein said tilt pin locates said U-shaped frame in inward telescopic relation to said box-like frame. 1.4o A marine propulsion device according to any one of claims 11 to 13 and. further including a tilt and trim assembly connected to said twivel bracket and including a mounting bracket mounted to said transom bracket and located within said box-like frame and adjacent to the bottom thereof. A marine propulsion device in accordance with claim 14 wherodn said tilt and trim assembly 4, 2 ft.* -109 -37- further includes a tilt cylinder-piston assembly having a first end pivotally connected to said mounting bracket about a first axis which is horizontal when said mounting bracket is fixed relative to the boat transom and having a second end pivotally connected to sai.d swivel bracket, said tilt cylinder-piston assembly being operative, in response to extension and contraction thereof, to displace said swivel bracket relative to said transom bracket about said tilt axis, a trim cylinder-piston assembly including a cylinder having a blind end pivotally connected to said mounting bracket about a second axis parallel to said first axis, and a rod end, and a piston rod extending from said cylinder through said rod and and including an outer end adapted for engagement and disengagement with said swivel bracket, and moans connecting said trim cylinder-piston assembly and said tilt cylinder-piston assembly for angularly displacing said trim cylinder-piston assembly about said second axis in response to angular movement of said tilt cylinder-piston assembly about said first axis occurring in response to extension and contraction of said tilt cylinder-piston assembly. 16, A marine propulsion device according to claim 14 and further including means for passing a control line and/or a supply line through an opening in the boat transom while maintaining wator.-tight integrity comprising a mounting plaite mounted to said transom bracket and in surrounding relation to the opening in the transom and located within said box-like frame above said mounting bracket.
17. A marine propulsion device according to claim 16 wherein said mounting plate includes a first surface having a peripheral portion adapted to be -38- sealingly fixed to the margin around the opening in the boat transom and a second surface remote from the boat transom, and a fluid supply line extending through said mounting plate between said first and second surfaces, while maintaining water-tight integrity and including, adjacent one of said first and second surfaces, a fitting communicating with said supply line and adapted for detachable connection to a continuation of said fluid supply line.
18. A marine propulsion device according to claim 16 wherein said mounting plate includes a first surface having a peripheral portion adapted to be sealingly fixed to the margin around the opening in the boat transom, a second surface remote from the boat transom, and a central portion located inwardly of said peripheral portion and including therein a bore extending between said first and second surfaces, a control line passing through said bore, a grommet between said bore and said controlling line, and an anchor fixed to said central portion of said mounting plate and engaging said grommet to sealingly engage said grommet between said control line and said central portion of said mounting plate, whereby to provide water-tight integrity. oeo 19. A marine propulsion device according to any t one of claims 11 to 14 and further including means for passing a control line through an opening in the boat transom while maintaining water-tight integrity and comprising a mounting plate mounted to said transom bracket in surrounding relation to the opening in the transom and located within said box-like frame, and a control line passing through said plate. -39- A marine propulsion device according to any one of claims 11 to 14 and further including means for passing a fluid supply line through an opening in the boat transom while maintaining water-tight integrity and comprising a mounting plate mounted to said transom bracket in surrounding relation to the'opening in the transom and located within said box-like frame, and a fluid supply line passing through said plate.
21. A marine propulsion device according to any one of claims 11 to 14 and further including means for passing a control line and a fluid supply line through an opening in the boat transom while maintaining water-tight integrity and comprising a mounting plate mounted to said transom bracket in surrounding relation to the opening in the transom and located within s&id box-like frame, and a control line and a fluid supply line passing through said plate.
22. A marine propulsion device according to any one of claims 19 to 21, wherein said mounting plate includes a first surface having a peripheral portion adapted to be sealingly fixed to the margin around the opening in the boat transom and a second surface remote from the boat transom, and a fluid supply line extending through said mounting plate between said first and second surfaces, while maintaining water-tight integrity Sand including, adjacent one of said first and second surfaces, a fitting forming a part of said supply line and including means for detachable connection to a continuation of said fluid supply line.
23. A marine propulsion device according to any one of claims 19 to 22, wherein said mounting plate includes a first surface having a peripheral portion f A v adapted to be sealingly fixed to the margin around the opening in the boat transom, a second surface remote from the boat transom, and a central portion located inwardly of said peripheral portion and including therein a bore extending between said first and second surfaces, a control line passing through said bore, a grommet between said bore and said control line, and an anchor fixed to said central portion of said mounting plate and engaging said grommet to sealingly engage said grommet between said control line and said central portion of said mounting plate, whereby to provide water-tight integrity.
24. A marine propulsion device according to claim 1 wherein said means connecting said propulsion unit to said swivel bracket includes a king pin extending in said swivel bracket and fixed to said propulsion unit, and means for rotatably displacing said king pin relative to said swivel bracket including an arm extending fixedly and laterally from said king pin and an extendable and contractable link pivotally connected to said arm and to said swivel bracket about axes parallel to said transverse axis. A marine propulsion device according to claim 24 wherein said link comprises a hydraulic cylinder-piston assembly.
26. A marine propulsion device substantially as hereinbefore described with reference to the accompanying drawings. Dated this 4th day of October, 1990 OUTBOARD MARINE CORPORATION By Its Patent Attorneys hR Z GRIFPITH HACK CO. Fellows Institute of Patent S Attorneys of Australia. V1 .zll~ I/tiut ofPa*^~