US3902449A

US3902449A - Shallow water drive operating mechanism

Info

Publication number: US3902449A
Application number: US437842*A
Authority: US
Inventors: Robert J Berry
Original assignee: Outboard Marine Corp
Current assignee: Outboard Marine Corp
Priority date: 1974-01-30
Filing date: 1974-01-30
Publication date: 1975-09-02
Anticipated expiration: 1992-09-02

Abstract

Disclosed herein is a marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by the support bracket, a swivel bracket, a tilt pin connecting the swivel bracket and the support bracket for vertical swinging movement therebetween relative to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position, a shallow water drive link mounted on the swivel bracket for movement relative to a position for engagement with the thrust pin so as to locate the swivel bracket in the shallow water drive position and to afford thrust transmission between the drive link and the thrust pin, an operating lever pivotally mounted on the swivel bracket for movement between ''''run'''' and ''''tilt'''' positions, a linkage connecting the operating lever to the shallow water drive link and operable, when the operating lever is moved to the tilt position, for displacing the shallow water drive link to the thrust pin engaging position and operable, when the operating lever is moved to the run position, for permitting movement of the shallow water drive link away from the thrust pin engaging position, which linkage provides lost motion between the operating lever and the shallow water drive link, and a spring engaging the shallow water drive link for biasing the shallow water drive link away from the thrust pin engaging position and for releasably and selectively retaining the operating lever in the run and tilt positions.

Description

Sept. 2, 1975 United States Patent [19] Berry SHALLOW WATER DRIVE OPERATING a swivel bracket, a tilt pin connecting the swivel bracket and the support bracket for vertical swinging movement therebetween relative to a normal runnin MECHANISM g [75] Inventor" Robert Berry waukegan swivel bracket position and a shallow water drive Assignee: Outboard Marine Corporation, swivel bracket position raised with respect to the nor- Waukegan, Ill.

mal running position, a shallow water drive link mounted on the swivel bracket for movement relative to a position for engagement with the thrust pin so as [22] Filed: Jan. 30, I974 [21] Appl. No.: 437,842 to locate the swivel bracket in the shallow water drive position and to afford thrust transmission between the drive link and the thrust pin, an operating lever pivot- [52] US. 115/41 R; 248/4 ally mounted on the swivel bracket for movement bell5/41R Int.

Field of Search tween run and tilt positions, a linkage connecting the operating lever to the shallow water drive link and operable, when the operating lever is moved to the tilt References Cited position, fondlsplacmg the shallow water drive link to the thrust pin engaging position and operable, when UNlTED STATES PATENTS the operating lever is moved to the run position, for

3,576,173 4/1971 115/17 permitting movement of the shallow water drive link 3,785,329 1/1974 Sh1manckas....... 115/41 R away f the thrust pin engaging position, which linkage provides lost motion between the operating Primary E,raminerTrygve M. Blix lever and the shallow water drive link, and a spring en- Assistant Examiner-Charles E. Frankfurt gaging the shallow water drive link for biasing the At g t Firm-MiChael, Best & Friedrich shallow water drive link away from the thrust pin engaging position and for releasably and selectively re- ABSTRACT taining the operating lever in the run and tilt positions. Disclosed herein is a marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by the support bracket,

5 Claims, 4 Drawing Figures WATENTEU 75 SHEU l I? 53 PATENTED 2 i975 SdEET 2 2 SHALLOW -WATEIR DRIVE OPERATING MECHANISM BACKGROUND oF THE. iNvEN noN The invention relates gencrally to marine propulsion 5 devices, such as outboard motors and stern drive units and, more particularly/11o shallow watc'rdrive link operating mechanisms for such marine propulsion-devices,

Outboardmoto'rs commonly include a mounting bracket adapted to be attached to the transom of a boat and a swivel bracket connected to' the mounting bracket for movement about a tilt axis between a normal running oroperating position, a raised swivel bracket position. and a partially elevated shallow water drive position located-intermediatethe raisedswivel bracket position and the normal running position.

Outboard motors have also previously includedshallow water drive links which are pivotally mounted'on the swivel bracket for movement relative to a position of engagement with a thrust pin supported by the mounting bracket, either by direct manual manipulation of the shallow water drive link or in response to movement of reverse lock elements.

Attention isdirected to the following US. Pat Nos: Ginnow US. 'Pat.- No. 3,576,173 issued Apr. 27, 1971; Hulsebus- U.S. PaL'No. lie-25,048 issued Oct. 3, 1961; Anderson US. Pat. No. 3,016,869 issued Jan.

Attention is also directed to the Shimanekas US. Pat. No. 3,785,329-issued Jan. 15, 1974 and 'to the Kueny US. Pat. No. 3,835,807 issued Sept. 17, 1974.

SUMMARY OF THE invsnnon The invention provides a marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by the support bracket, a swivel bracket, means connecting the swivel bracket and the support bracket for vertical swinging'movement therebetween relative to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position, -a shallow water drive link mounted on the swivel bracket-for movement'rel'ativeto a position for engagement with the thrust pin so as to locate the swivel bracket in the shallow water drive position and to afford thrust transmission between the drive link and the thrust pin, an operating lever pivotally'mounted on the swivel bracket for movement between run and tilt positions, and linkage means connecting the operating lever to the shallow water drive link and operable, when the operating lever is moved to the tilt position, for displacing the shallow water drive link to the thurst pin engaging position and operable when the operating lever is moved to the run position, for permitting movement of the shallow'water drive link away from the thurst pin engaging position, the linkage means including means providing lost motion between the operating lever and the shallow water drive link, and spring means engaging the shallowwaterdrive link for biasing the shallow water drive link away from the thrust-pin engaging position and for releasably and selectively retaining the operating lever in therun and tilt positions.

In further accordance with the invention. the operating lever is operable to displace the shallow water drive link independently of an reverse lock movement.

The invention also provides a marine propulsion device comprising a support bracket adapted to be attaehed to aboathull, a thrust pin carried by the support bracket, a swivel bracket, means connecting the swivel bracket and the support bracket for vertical swinging movement therebetween relative to a normal running swivel bracketposition and a shallow water drive swivel bracket position raised with respect to the normal running position, a reverse lock mounted on the swivel bracket for movement between a position for releasable locking engagement with the thrust pin to locate theswivel bracket in the normal running position, and a release position spaced from the thrust pin locking engagement position to permit upward movement of the swivel bracket from the normal running position, a shallow water drive link mounted on the swivel bracket for movement relative to a position for engagement with the thurst pin so as to locate the swivel bracket in the shallow water drive position and to afford thrust transmission between the drive link and the thrust pin, an operating lever pivotally mounted on the swivel bracket for movement between first and second positions, anda linkage means connecting the operating lever to the reverse lock and to the shallow water drive link and operable, when the operating lever is moved to the firs-tposition, for displacing the reverse lock to the release position and for displacing the shallow water drivelink to the thrust pin engaging position and operable, when the operating lever is moved to the secondiposition; for permitting movement of the reverse lock to the thrust pin locking engagement position, and for permitting movement of the shallow water drive link awayffrom the thrust pin engaging position. The linkage means includes a rod connected to the operating-lever and to the reverse lock and including means providing'lost motion between the operating lever and the reIverse'lock, and an element connected to the rod and'tothe shallow water drive link and including means providing lost motion between the operating lever and the shallow water drive link, and spring means operable between the swivel bracket and the shallow water drive link for biasing the shallow water drive link away from the thrust pin engaging position and for releasably and selectively retaining the operating lever in the first and second positions.

'A' principal feature of the invention is the provision in a shallow water drive link operating mechanism of 'springmeans operable both to displace the shallow water'drive link away from a thrust pin engaging position and-for releasably and selectively retaining an op- .erating lever in either one of two operating positions.

It is a feature of the invention to provide a marine propulsionmdevicc, such as an outboard motor, with a single operating lever or element directly controlling each of a reverse lock, a shallow water drive link, and

a bracket or member for holding a swivel bracket in the raised position, which operating lever is selectively bias'ed to either of a run or tilt position by a spring which also biases the shallow water drive link away from the thrust pin'engaging position.

"Anothcrfeature ofthe invention is the provision of manually operable linkage for operating a shallow -wa-ter drive link without employing the components of r areverse lock.

Stillanoth'erfeaturc of theinvention is the provision ofa manually operable shallow water drive link operat ing linkage including a lost motion connection operable, during location of the swivel bracket between the normal Operating position and the shallow water drive position, to cock the shallow water drive link for movement to a position for engagement with the thrust pin upon movement of the swivel bracket above the shallow water drive position and operable, during engagement of the shallow water drive link with the thrust pin, to retain the drive link against a stop on the swivel bracket so as to retain the shallow water drive link in proper position for engagement with the thrust pin.

Other features and advantages of the invention will become known by reference to the following drawings, general description, and claims.

THE DRAWINGS FIG. 1 is a side elevational view of a marine propulsion device in the form of an outboard motor embodying various of the features of the invention.

FIG. 2 is an enlarged view taken from the front of a portion of the outboard motor shown in FIG. 1.

FIG. 3 is a fragmentary and partially schematic view of a portion of the components of the outboard motor shown in FIG. 1 with the operating lever shown in the ran position and with the thrust pin engaged by the reverse lock, and with the shallow water drive link held in a storage position by the means biasing the drive link away from the thrust pin.

FIG. 4 is a view similar to FIG. 3, with the operating lever shown in the tilt position, with the reverse lock unlatehed, and with the shallow water drive link in engagement with the thrust pin to retain the swivel bracket in the shallow water drive position.

Before explaining the invention in detail. it is to be understood that the invention is not limited in its application to the details of the construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.

GENERAL DESCRIPTION Shown in the drawings is a marine propulsion device which embodies various of the features of the invention and which is in the form of an outboard motor 11. including a clamp or stem or transom or mounting bracket 13 which is adapted to be fixed to the transom 14 or other supporting member of a boat hull. Connected to the transom bracket 13 for vertical swinging movement about a tilt pin 17 is a swivel bracket 19. Connected to the swivel bracket 19 for common vertical swinging movement and for horizontal swinging movement about a king pin 21 relative to the swivel bracket 19 is a propulsion unit 23 which includes a propeller shaft 27 carrying a propeller 29.

Also included in the outboard motor 1 1 is a thrust pin or rod 31 which is selectively supportable in-two laterally spaced series of apertures 33 in the stern or transom bracket 13 so as to determine the angle between the transom l4 and the propulsion unit 23 when the propulsion unit 23 is in the normal running or operating position. Beeauseof the'pivotal connection about the tilt pin 17, the propulsion unit 23 and connected swivel bracket 19 are swingable upwardly from the normal operating position to a shallow water drive position. and upwardly beyond the shallow water drive position to an elevated or raised position in which the propulsion unit 23 and connected swivel bracket 19 can be supported against return movement to the normal operating position and to the shallow water drive position and in which the propeller 29 is usually out of the water. ln addition, the propulsion unit 23 and'connnected swivel bracket 19 can normally be swung slightly upwardly beyond the elevated or raised position.

Also included in the outboard motor 11 is a reverse lock 41 (See FIGS. 3 and 4) which, when engaged, prevents upward swinging of the propulsion unit 23 from the normal operating position to thereby facilitate outboard motor operating in reverse. In the event of the striking of an underwater obstacle when traveling forwardly and. if the impact associated with such striking is sufficient, the reverse lock 41 will automatically release to permit upward swinging of the propulsion unit 23.

In the illustrated construction. the reverse lock 41 embodies various of the features disclosed in the Hulsebus US. Pat. No. Re-25,048, issued Oct. 3, 1961. While other reverse lock configurations can be employed, in the illustrated construction, the reverse lock 41 includes a pair of arms 43 which are respectively coaxially and pivotally mounted on a pivot or stud 44 on the prevent sides of the swivel bracket 19. At their forward ends, the arms 43 are connected to a yoke or bale 47 by a pivot pin 49 affording relative pivotal movement therebetween. Pivotal movement of the bale or yoke 47 relative to the pivot pin 49 in the counterclockwise direction as seen in FIGS. 3 and 4 prevented by respective stops 46 which extend from the pivot arms 43 into engagement with the bale or yoke 47. The forward portion of the bale or yoke includes hood portions 59 adapted to engage the thrust pin or rod 31 to releasably prvent upward swinging movement of the propulsion unit 23 and connected swivel bracket 19.

Means are provided for biasing the assembly of the bale 47 and pivot arms 43in the counterclockwise direction as shown in FIGS. 3 and 4 about the pivot 44 to releasably engage the hook portions 59 with the thrust pin 31. While other arrangements can be employed, in the illustrated construction, such means comprises one or more relatively heavy main tension springs 61 which are connected, at their lower ends, to the rearward portions of the bale 47 and which, at their upper ends, are anchored to the swivel bracket 19. The reverse lock 41 is thus biased by the heavy tension or main springs 61 into engaged position with the thrust pin 31 so as to prevent upward movement of the propulsion unit 23. and connected swivel bracket 19 from the normal operating position (See FIG. 3).

Means are provided for releasably retaining the propulsion unit 23 and connected swivel bracket 19 in the raised or elevated position. While other constructions can be employed, in the illustrated construction, such means comprises (See FIG. 4) a mechanism including a locking or holding bracket or member 77 which is pivotally mounted on the swivel bracket 19 coaxially with the operating lever still to be described and which includes a slot 79 comprising a generally vertically elongated portion 81 and a projecting portion 83 extending forwardly from the lower end of the vertically elongated slot portion 81. Also provided in the locking bracket 77 is a detent or tang 87 which projects downwardly into the junction between the vertically elongated slot portion 81 and the forwardly projecting slot portion 83.

Received within the slot 79 for movement therein is a locking pin 89 which extends fixedly from the transom bracket 13. When the propulsion unit 23 and con nected swivel bracket 19 are in the normal running position, the locking pin 89 is located at the upper end of the vertically elongated slot portion 81 (Sec FIG. 3). When the propulsion unit 23 and connected swivel bracket 19 are retained in the elevated or raised position. the locking pin 89 is located in the projecting slot portion 83 in engagement with the upper edge 90 of the projecting slot portion 83 and forwardly of the downwardly projecting tang 87.

Movably carried on the swivel bracket 19 is a U- shaped shallow water drive link 101 which is carried for movement relative to a position affording releasable engagement with the thrust pin 31 to retain the swivel bracket 19 in the shallow water drive position and relative to a storage position below the thrust pin engaging position. The shallow water drive link 101 includes a web part 103 adapted to engage the thrust pin 31 when the drive link 101 is in the position for engagement with the thrust pin 31 and a pair of spaced legs 105 which extend from the web part 103 and are pivotally mounted on the pivot 44.

Means are provided on the shallow water drive link 101 and on the swivel bracket 19 for limiting movement of the shallow water drive link 101 in the clockwise direction as shown in FIGS. 3 and 4, so as to locate the drive link in correct position for engagement with the thrust pin 31 upon movement of the swivel bracket 19 downwardly to the shallow water drive position. While other arrangements could be employed, one or both of the legs 105 includes a tang 107 which extends rearwardly beyond the pivot 44 and is adapted to engage a stop 109 on the swivel bracket 19 so as to limit shallow water drive link movement in the clockwise direction and thereby locate the drive link 101 in the position affording releasable engagement with the thrust pin 31.

Provided on the swivel bracket 19 is a selectively operable control means including an operating element or lever 121 operably connected to the reverse lock 41, operably connected to the shallow water drive link 10] independently of the reverse lock 41, and operably connected to the swivel bracket holding bracket or member 77, for controlling releasable engagement with the thrust pin 31 by the reverse lock 41, and for dis placing the shallow water drive link 10] relative to the position affording releasable engagement with the thrust pin 31, and for controlling releasable holding of the swivel bracket 19 in the raised position by the swivel bracket holding member 77.

More specifically. the operating element or lever 121 is movably mounted on the swivel bracket 19 and is operably connected by a linkage means 127 to each of the reverse lock 41, the swivel bracket holding member 77, and the shallow water drive link 101.

Still more specifically, while other constructions could be employed, in the illustrated construction, the operating lever 12] includes a shaft 123 which is pivotally mounted to the swivel bracket 19 adjacent the top thereof for movement between run and tilt positions which are angularly spaced from each other at about 135 degrees. The operating lever 121 also includes a handle I24 extending fixedly from the shaft 123, an

arm 125 extending fixedly from the shaft 123, and a pair of angularly spaced abutments or shoulders 129 and 131.

As will be explained hereinafter, the operating lever is biased over center so that the lever 121 tends to remain in either the run or tilt position in the absence of manual manipulation to change its position. More specifically, the arm 125 is located so that during movement of the operating lever 121 between the tilt and run positions, the arm 125 travels over-center, i.e., over the top of the axis of the shaft 123.

More specifically, the linkage means 127 includes the arm 125 and a rod or member 141 which extends from the arm 125 and which connects the operating lever 121 and the reverse lock 41 in a manner providing lost motion between the operating lever 121 and the reverse lock 41. Still more specifically, the rod 141 is pivotally connected, at its upper end, to the arm 125 and, at its lower end, includes a bite 142 formed by a hook or slot-like portion 144 engaged with the reverse lock 41 so as to provide therebetween the lost motion connection.

When the rod 141 is raised by movement of the operating lever 121 from the run position to the tilt position. the reverse lock 41 is released by rotating the bale 47 about the pivot 44 in the clockwise direction. as seen in FIGS. 3 and 4, and against the action of the main springs 61. When the operating lever 121 is in the tilt position. the reverse lock 41 is retained in unlatched condition. Upon movement of the operating lever 121 from the tilt position to the run position, the rod 141 is lowered to permit repositioning of the reverse lock 41, under the influence of the main springs 61, for engagement with the thrust pin 31 upon return of the swivel bracket 19 to the normal running or operating position. When the operating lever 121 is in the run position, the reverse lock 41 is retained in position for engagement with the thrust pin 31.

The linkage means 127 further includes the angularly spaced shoulders 129 and 131 on the operating lever 121 and a pin 145 which extends from the swivel bracket holding member 77 and which is operably engageable with the shoulders 129 and 131 so that, in response to movement of the operating lever 121 from the run position to the tilt position, the swivel bracket holding member 77 is cocked for movement in the counterclockwise direction relative to the transom bracket 13, as shown in FIGS. 3 and 4, so as to displace the locking pin 89 into the left end of the projecting portion 83 of the slot 79 in the holding member 77 and to thereby retain the swivel bracket holding member 77 in position to releasably retain the swivel bracket 19 in the raised position.

Upon movement of the operating lever 12] from the tilt position to the run position, the swivel bracket holding member 77 is cocked for movement in the clockwise direction relative to the transom bracket 13, as shown in FIGS. 3 and 4, so that, upon elevation of the swivel bracket 19 above the raised position, the holding member 77 will move relative to the locking pin 89 to locate the locking pin 89 in the vertical portion 81 of the slot 79 and thereby to permit lowering of the swivel bracket 19 from the raised position.

The linkage means 127 further includes an element or rod 151 which provides lost motion between the operating levcr 121 and the shallow water drive link 10], which, at its upper end. is pivotally connected to a loop 147 formed in the rod 141 intermediate the ends thereof. and which, at its lower end, is either pivotally connected to the shallow water drive link 101 or is guided for movement so as to operatively engage the shallow water drive link 101 to swing the shallow water drive link 101 in the clockwise direction. as shown in F108. 3 and 4, in response to upward movement of the rod or element 151.

Various means can be employed for providing the lost motion connection in the linkage means 12'] connected to the shallow water drive link 101. In the illustrated construction, the lost motion connection is provided by forming the element 151 with an integral spring portion 153 which is extendiblc in the event the shallow water drive link 101 is prevented from moving in common with the upper end of the element in response to manual manipulation of the operating lever 121 by the operator.

In further accordance with the invention, means are provided for biasing the shallow water drive link 101 in the counterclockwise direction away from the position affording engagement with the thrust pin 31 and for releasably and selectively retaining the operating lever 121 in the run and tilt positions. While various other means can be employed, in the illustrated construction, one or more suitably arranged springs are employed to bias the shallow water drive link 101 in the counterclockwise direction away from the thrust pin 31. Specifically, a helical spring 111 is mounted coaxially with the pivot 44 and includes opposite ends respectively engaged against the swivel bracket 19 and the shallow water drive link 101 to provide the desired bias. As the shallow water drive link 101 is operably connected to the element 151 and as the element 151 is, in turn, connected to the rod 141, the spring 111 also serves to continuously urge the rod 141 downwardly and thereby bias the operating lever 121 toward the position in which it is located.

Thus, when the operating lever 121 is moved from the run position to the tilt position, upward swinging of the arm 125 causes upward movement of the rod 141 which, in turn, causes upward movement of the element 151, which causes the shallow water drive link 101 to swing in the clockwise direction about the pivot 44 and against the action of the spring 111. Such shallow water drive link movement will cause, prior to full movement of the operating lever 12] to the tilt position, engagement of the legs 105 of the shallow water drive link 101 with the bottom of the thrust pin 31 when the swivel bracket 19 is in the normal running position. Under such circumstances, the spring portion 153 of the element 151 will expand to permit complete movement of the operating lever 12] to the tilt position.

After the operating lever 121 is in the tilt position, the swivel bracket 19 can be swung upwardly and the tension in the spring portion 153 of the element 151 causes the shallow water drive link 101 to remain in engagement with the thrust pin 31 during initial movementof the swivel bracket 19 upwardly and away from the thrust pin 31. When the swivel bracket 19 is raised beyond the shallow water operating position, the shallow water drive link 101 rides off the thrust pin 31 and the tension in the spring portion 153 of the element 151 serves to further displace the shallow water drive link 101 in the clockwise direction until engagement of the stop 109 on the swivel bracket 19 by the tang or tangs 107 to locate the shallow water drive link 101 in the position affording engagement with the thrust pin 31. Upon lowering of the swivel bracket 19 to the shallow water drive position. the shallow water drive link 101 will engage the thrust pon 31 to releasably retain the swivel bracket 19 in the shallow water drive position.

When the operating lever 121 is thereafter moved from the tilt to the run position, the element 151 is lowered permitting the spring or springs 111 to displace the shallow water drive link 101 relative to the swivel bracket 19 and away from the thrust pin engaging position to the storage position shown in FIG. 3. Accordingly. upon subsequent lowering of the swivel bracket 19. the shallow water drive link 101 will be retained clear of and below the thrust pin 31. Movement of the operating lever 121 from the tilt to the run position, as already explained, also simultaneously permits location of the reverse lock 41 for engagement with the thrust pin 31 upon return of the swivel bracket 19 to the normal running position.

If the swivel bracket 19 is raised beyond the shallow water drive position to the raised position after movement of the operating lever 121 to the tilt position, and it is desired to subsequently locate the swivel bracket 19 in the shallow water drive position, the operating lever 121 is then returned to the run position. the swivel bracket 19 is then returned to the normal operating position, the operating lever 121 is then returned to the tilt position, and the swivel bracket 19 is then raised at least somewhat beyond the shallow water drive position and then lowered to engage the shallow water drive link 101 with the thrust pin 31.

Various of the aspects of the invention are set forth in the followng claims.

1. A marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by said support bracket, a swivel bracket, means connecting said swivel bracket and said support bracket for vertical swinging movement therebetwecn relative to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position. a shallow water drive link mounted on said swivel bracket for movement relative to a position for engagement with said thrust pin so as to locate said swivel bracket in the shallow water drive position and to afford thrust transmission between said drive link and said thrust pin. an operating lever. pivotally mounted on said swivel bracket for movement between first and second positions, linkage means connected said operating lever to said shallow Water drive link and operable, when said operating lever is moved to said first position, for displacing said shallow water drive link to said thrust pin engaging position and operable, when said operating lever is moved to said second position, for permitting movement of said shallow water drive link away from said thrust pin engaging position, said linkage means including means providing lost motion between said operating lever and said shallow water drive link, and spring means engaging said shallow water drive link for biasing said shallow water drive link away from said thrust pin engaging position and for releasably and selectively retaining said operating lever in said first and second positions.

2. A marine propulsion device in accordance with claim 1 wherein said spring means operates between said swivel bracket and said shallow water drive link.

3. A marine propulsion device in accordance with claim 1 wherein said linkage means includes an element connected to said operating lever and to said shallow water drive link and including said means providing lost motion between said operating lever and said shallow water drive link.

4. A marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by said support bracket, a swivel bracket, means connecting said swivel bracket and said support bracket for vertical swinging movement therebetwecn relative to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position. a reverse lock mounting on said swivel bracket for movement between a position for releasable locking engagement with said thrust pin to locate said swivel bracket in the normal running position, and a release position spaced from said thrust pin locking engagement position to permit upward movement ,of said swive l bracket from the normal running position. a shallow water drive link mounted on said swivel bracket for movement relative to a position for engagement with said thrust pin so as to locate said swivel bracket in the shallow water drive position and to afford thrust transmission between said drive link and said thrust pin, an operating lever pivotally mounted on said swivel bracket for movement between first and second positions, linkage means connecting said operating lever to said reverse lock and to said shallow water drive link and operable, when said operating lever is moved to said first position, for displacing said reverse lock to said release position and for displacing said shallow water drive link to said thrust pin engaging position and operable, when said operating lever is moved to the second position for permitting movement of said reverse lock to said thrust pin locking engagement position, and for permitting movement of said shallow water drive link away from said thrust pin engaging position, said linkage means including a rod connected to said operating lever and to said reverse lock and including means providing lost motion between said opperating lever and said reverse lock, and an element connected to said rod and to said shallow water drive link, said element including mens providing lost motion between said operating lever and said shallow water drive link, and spring means operable between said swivel bracket and said shallow water drive link for biasing said shallow water drive link away from said thrust pin engaging position and for releasably and selectively retaining said operating lever in go, said first and second positions.

LII

holding operation of said swivel bracket holding means. =l= l i= mg? UNITED STATES PATENT OFFKCE CERTIFICATE OF I: CTICN latent No. 2. 9 I Dated September 2I 1975 Inv fl Robert J. Berry It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column Column Column Column Column Column Column Column [SEAL] 4, line 27 4, line 32 4, line 34 4, line 37 8, line 5 9, line 15 10, line 11 10, line 13 A I test:

RUTH C. MASON Allmting Officer Delete "prevent", insert -opposite- After "3 and 4", insert Delete "hood", insert --hook-,

Delete "prvent", insert -prevent-.

Delete "pon", insert pin--,

Delete "mounting", insert -mounted---,

Delete "o pperating", insert -operating--.

Delete "mens", insert --means-,

Signed and Sealed this thirteenth D 21) of April 1 9 76 C. MARSHALL DANN ('ummissium'r of Parents and Trademarks w]

Claims

1. A marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by said support bracket, a swivel bracket, means connecting said swivel bracket and said support bracket for vertical swinging movement therebetween relativE to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position, a shallow water drive link mounted on said swivel bracket for movement relative to a position for engagement with said thrust pin so as to locate said swivel bracket in the shallow water drive position and to afford thrust transmission between said drive link and said thrust pin, an operating lever pivotally mounted on said swivel bracket for movement between first and second positions, linkage means connected said operating lever to said shallow water drive link and operable, when said operating lever is moved to said first position, for displacing said shallow water drive link to said thrust pin engaging position and operable, when said operating lever is moved to said second position, for permitting movement of said shallow water drive link away from said thrust pin engaging position, said linkage means including means providing lost motion between said operating lever and said shallow water drive link, and spring means engaging said shallow water drive link for biasing said shallow water drive link away from said thrust pin engaging position and for releasably and selectively retaining said operating lever in said first and second positions.

4. A marine propulsion device comprising a support bracket adapted to be attached to a boat hull, a thrust pin carried by said support bracket, a swivel bracket, means connecting said swivel bracket and said support bracket for vertical swinging movement therebetween relative to a normal running swivel bracket position and a shallow water drive swivel bracket position raised with respect to the normal running position, a reverse lock mounting on said swivel bracket for movement between a position for releasable locking engagement with said thrust pin to locate said swivel bracket in the normal running position, and a release position spaced from said thrust pin locking engagement position to permit upward movement of said swivel bracket from the normal running position, a shallow water drive link mounted on said swivel bracket for movement relative to a position for engagement with said thrust pin so as to locate said swivel bracket in the shallow water drive position and to afford thrust transmission between said drive link and said thrust pin, an operating lever pivotally mounted on said swivel bracket for movement between first and second positions, linkage means connecting said operating lever to said reverse lock and to said shallow water drive link and operable, when said operating lever is moved to said first position, for displacing said reverse lock to said release position and for displacing said shallow water drive link to said thrust pin engaging position and operable, when said operating lever is moved to the second position for permitting movement of said reverse lock to said thrust pin locking engagement position, and for permitting movement of said shallow water drive link away from said thrust pin engaging position, said linkage means including a rod connected to said operating lever and to said reverse lock and including means providing lost motion between said opperating lever and said reverse lock, and an element connected to said rod and to said shallow water drive link, said element including mens providing lost motion between said operating lever and said shallow water drive link, and spring means operable between said swivel bracket and said shallow water drive link for biasing said shallow water drive link away from said tHrust pin engaging position and for releasably and selectively retaining said operating lever in said first and second positions.

5. A marine propulsion device in accordance with claim 4 and wherein said swivel bracket is movable to a raised position elevated beyond the shallow water drive position and further including means on said swivel bracket and on said support bracket for releasably holding said swivel bracket in the raised position, and wherein said linkage means also operably connects said operating lever to said swivel bracket holding means and is operable to control the swivel bracket holding operation of said swivel bracket holding means.