CA1208500A - Steering arrangement for marine propulsion device - Google Patents
Steering arrangement for marine propulsion deviceInfo
- Publication number
- CA1208500A CA1208500A CA000443773A CA443773A CA1208500A CA 1208500 A CA1208500 A CA 1208500A CA 000443773 A CA000443773 A CA 000443773A CA 443773 A CA443773 A CA 443773A CA 1208500 A CA1208500 A CA 1208500A
- Authority
- CA
- Canada
- Prior art keywords
- pin
- actuating member
- aperture
- connecting link
- steering
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000000694 effects Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 description 5
- 102000004726 Connectin Human genes 0.000 description 1
- 108010002947 Connectin Proteins 0.000 description 1
- VRDIULHPQTYCLN-UHFFFAOYSA-N Prothionamide Chemical compound CCCC1=CC(C(N)=S)=CC=N1 VRDIULHPQTYCLN-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
Landscapes
- Steering Controls (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The marine propulsion device, such as an outboard motor, includes a propulsion unit connected to a hollow tilt pin for swinging movement about a horizontal axis and a vertical steering axis, an actuating member slidably mounted inside the tilt pin, and a link operably connecting the actuating member to a steering arm on the propulsion unit to cause swinging movement of the propulsion unit in response to operation of a remote steering mechanism, such as a steering wheel, operably connected to the actuating member. The terminal portion of one end of the connecting link is in the form of a generally cylindrical pin which extends through an aperture in the outer end of the actuating member. The pin has a substantially straight shank portion pivotally received in the actuating member aperture and an angularly related outermost end portion projecting exteriorly of the actuating member to provide an interference type lock. A cotter pin removably mounted on the outermost end portion of the pin further prevents accidental disconnection of the connecting link from the actuating member. The other end of the connecting link is pivotally connected to the steering arm with a threaded fastener including a threaded portion threaded into the steering arm and a cylindrical sleeve pivotally received in an aperture in the end of the connecting link.
The marine propulsion device, such as an outboard motor, includes a propulsion unit connected to a hollow tilt pin for swinging movement about a horizontal axis and a vertical steering axis, an actuating member slidably mounted inside the tilt pin, and a link operably connecting the actuating member to a steering arm on the propulsion unit to cause swinging movement of the propulsion unit in response to operation of a remote steering mechanism, such as a steering wheel, operably connected to the actuating member. The terminal portion of one end of the connecting link is in the form of a generally cylindrical pin which extends through an aperture in the outer end of the actuating member. The pin has a substantially straight shank portion pivotally received in the actuating member aperture and an angularly related outermost end portion projecting exteriorly of the actuating member to provide an interference type lock. A cotter pin removably mounted on the outermost end portion of the pin further prevents accidental disconnection of the connecting link from the actuating member. The other end of the connecting link is pivotally connected to the steering arm with a threaded fastener including a threaded portion threaded into the steering arm and a cylindrical sleeve pivotally received in an aperture in the end of the connecting link.
Description
` ~Z(J85(~
STEERING ARRANGEMENT FOR MARINE PROPULSION D~VIOE
Inventor: William W. Baars BACKGROUND OF THE INVENTION
This invention relates to marine propulsion devices such as outboard motors and stern drive units and, more particularly, to steering arrangements for marine propulsion devices.
Marine propulsion devices, such aQ
outboard motors and stern drive units, typically include an actuating member slidably mounted in a horizontal hollow tilt tube or pin which affords vertical swinging movement of a propulsion unit. A
link operably connects this actuating member to a tiller or steering arm on the propulsion unit and the ~5 actuating member is reciprocated inside the til~ pin to swing the propulsion unit about a vertical steering axiC in response to movement of an input member, such as a flexible push-pull cable, connected to a steering wheel or other suitable remove steering control. The pivotal connections between the opposite ends of tho connecting link and the actuating member and the steering typically include several parts. Consequently, an installer can omit and/or improperly install one or more of these parts, resulting in faulty steering operation and/or possible accidental disconnection of the connecting link during operation.
Attention is directed to the following United State- patents relating to steering 3~ arrangements for marine propulsion devices:
Patentee Patent No. Issue Date Post 2,875,722 March 3, 1959 Borst 3,774,568 November 27, 1973 Borst et al 4,054,102 October 18, 1977 ~ . .
lZ085(:~0 Attention is also directed to the following United States patents relating to various fastening means:
PatenteePatent No. Issue Date Bolles462,648 November 3, 1981 Woodward635,833 October 31, 1899 Gilbert1,255,406 February 5, 1918 Winning1,~37,004 December 15, 1931 SUMMARY OF THE INVENTION
The invention provides a marine propulsion device including a propulsion unit connected to a hollow tilt pin by means affording swinging movement of the propulsion unit about the tilt pin axis and affording swinging movement of the propulsion unit about a steering axis perpendicular to the tilt pin axis, an actuating member including a portion slidably mounted inside the tilt pin, a steering control including an input member connected to the actuating member for eEfecting steering movement in response to operation of the steering control, a connecting link, and first and second fastening means pivotally connecting the opposite ends of the connecting link to the actuating member and the steering arm, respectively, to cause swinging movement of the propulsion about the steering axis in response to operation of the steering control. The first fastening means includes a circular aperture in one end of the actuating member and the connecting link has a terminal portion in the form of a general cylindrical pin extending through the actuating member aperture. The pin Ihas a substantially straight shank portion pivotally received in the actuating member aperture and an outermost end 1~085(~0 portion angularly related to the shank portion and projecting exteriorly of the actuating member so that the connecting link must be rotated relative to the actuating member to permit the pin to be withdrawn through the aperture. The second fastening means prevents rotation of said connecting link relative to said actuating member to a position wherein said outer~ost end portion of said pin can be withdrawn from the actuating member aperture~
1~ In one embodiment, the first fastening means further includes a pin locking mean~ removably mounted on the outermost end portion of the pin ~o further prevent accidental disconnection of the pin from the actuating member.
In one embodiment, the second fastening means includes a circular aperture in the other end of the connecting link and a fastening member having a threaded portion threaded into the steering arm and a cylindrical sleeve pivotally received in the connecting link aperture~
In one embodiment, the threaded portion of the fastener member includes an outermost end portion projecting exteriorly of the steering arm and locking means is removably mounted on the outermost end of the threaded portion to prevent the fastener from being removed from the steering arm.
One of t~e principal features of the invention is the provision of a marine propulsion device having a steering arrangement including a minimum number of parts for connecting a remote steering control to the propulsion unit.
Another of the principal features of the invention is the provision of a marine propulsion device including a hollow tilt pin mechanism and a 1~085~0 steering arrangement including an actuating member slidably mounted inside the tilt pin, a link operably connecting the actuating member to a steering arm on the propulsion unit, and simplified fastening means for pivotally connecting the opposite ends of the connecting link to the actuating member and the steering arm.
A further of the principal features of the invention is the provision of a marine propulsion device described in the next preceding paragraph with one end of the connecting link arranged to provide an interference type locking connection with the actuating member.
Other featuxes, aspects and advantages of the invention will become apparent to those skilled in the art upon reviewing the detailed description, the drawing and the appended claims.
BRIEF DESCRIP$IO~ OF THE DRAWING
Fig. l is a partially schematic, partially section and fragmentary vie~ of a steering arrangement for a marine-propulsion device incorporating various of the features of the invention. -Fig. 2 is an enlarged, partially fragmentary, and partially section view of the link operably connecting the actuating member to the propulsion unit steering arm, Fig. 3 is an enlarged fragmentary view of one end of the connecting link shown during initial assembly with thQ actuating member.
Before explaining at least one of the embodiments of the invention in detail, it i9 to be -understood that tXe invention is nGt limited in its ~ZV85(D0 application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawing~ The invention is capable of other embodiments and of being carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting.
DESCRIPTIO~ OF THE PREFERRED EMBODIME~TS
:
Illustrated in the drawing is an outboard motor 10 including a clamp or transom bracket 12 adapted for connecting the outboard motor 10 to a boat hull 14 in a conventional manner and a swivel bracket 16 connected to the transom bracket by a hollow tilt tube or pin 18 which, in the usual manner, affords vertical swinging movement of the swivel bracket 16 relative to the transom bracket 12 about a horizontal axis. I
The outboard motor 10 also includes a propulsion unit 20 (illustrated by phantom lines) carrying a rotatably mounted propeller 21 which is normally submerged in the water. The propulsion unit 20 is connected to the swivel bracket 16 via a king pin 22 fox common tilting movement and for steering movement relative to the swivel bracket 16 about a vèrtical steering axis perpendicular to the axis of the tilt pin 18. Steering movement of the propulsion unit 10 is effected by pivotal movement of a tiller or steering arm 24 in a plane perpendicular to the steering axis.
The steering arm 24 is operated by a steering arrangement 26. In the specific-construction illustrated, the steering arrangement 26 12085(~0 includes a control mechanism such as a steering wheel 28 mounted on a steerings shaft 30 supported in a housing 32 and carrying an operating lever 34.
- The steering arrangement 26 also includes a flexible push-pull cable 36 housed in an outer flexible conduit or sheath 38. One end 40 of the cable sheat 38 is fixedly connected to the steering housing 32 and the other end 42 is fixedly connected to the tilt pin 18. In this regard, a female socXet 44 on the end 40 of the cable sheath 38 is threaded into a hollow nipple (not shown) on the steering housing 32 and a female socket 48 on the other end 42 of the cable sheath 38 is threaded onto a threaded end portion 50 on the tile pin 18.
lS The push-pull cable 36 is movable lengthwise within the sheath 38~ One end 52 of the cable 36 is connected to the operating lever 34 and the other end 54 is connected to one end of an actuating member 55 including an actuating element or rod 56 partially disposed in a slide tube 58 which is slidably mounted inside the tilt pin 18.
The slide tube 58 is secured to the actuating rod 56 so that the slide tube 58 reciprocates inside the tilt pin 18 in response to movement of the push-pull cable 36 when the steering wheel 28 is turned.
~n end 60 of the actuating rod 56 projects from the slide tube 58 and is connected to the steering arm 24 via a connecting link 62. One end 64 of the connecting link 62 is connected to the steering arm 24 for pivotal movement about an axis parallel to the steering axis. The other end 66 of the connecting link 62-is connected to the outer end 60 of the actuating rod 56 for pivotal movement about another axis parallel to the steering axis.
lZ08S~i'O
Fastening means is provided for pivotally mounting and positively locking the end 66 of the connecting link 62 on the outer end 60 of the actuating rod 56 with a minimum number of parts. I~
the specific instruction illustrated, the end 6.6.Q~
the connectin~ link 62 includes a terminal portion in the form of an elongate, generally cylindrical pin 68 having an outside diameter less than that of the ~ai~
body 70 of the connecting link 62 to define a shoulder 72 therebetween. The outer end 60 of thè-actuating rod 56 has a flattened rod end portion 7.4 including a circular aperture 76 for receiving the pin 68. The inside diameter of the aperture 76 is only slight~y larger than the outside diameter of the pin 68.
The pin 68 is bent or otherwise formed to provide a substantially straight shank portion 78 and an angularly related outermost end portion 80.
The shank portion 78 is somewhat longer than the thickness of the rod end portion 74 of the actuating rod 56. The shank portion 78 is received in the aperture 76 to permit relative pivotal movement of the connecting link 62 and the actuating rod 56 and the angular outermost end portion 80 projects exteriorly of the rod end portion 74.
For assembly, the pin 68 is inserted into the aperture 76 by first rotating the connecting link 62 relative to the actuating member 55 to a position wherein the axis of the outermost end portion 80 i9 generally coaxial with the axis of the actuating rod aperture 76 as shown in Fig. 3. After the outPrmost end portion 80 has been inserted into the aperture 76, the connecting link 62 then is rotated relative to tile actuating member 55 to a lZ~)8SG`O
position where the axis of the shank portion 78 is generally coaxial with the axis of the aperture 76.
The shank portion 78 can then be inserted into the aperture 76 until the shoulder 72 engages the ~urface of the rod end portion 74 of the actuating rod 56 and the connecting link 62 can be moved to its assembly position where the other end 64 of the connecting link 62 can be fastened to the steering arm 24 as shown in Fig. 2.
Once the connecting link 62 is fastened to steering arm 24, the outermost end portion 80 of the pin 68 provides an interference type lock against accidental disconnection from the actuating rod 56.
That is, the end 64 of the connecting link 62 first must be disconnected from the steering arm 24 and the connecting link 62 than rotated relative to the actuating member 55 to a position wherein the axis of the outermost end portion 80 is generally coaxial with the axis of the aperture 76 before the pin 68 can be completely withdrawn from the aperture 76.
Locking means removably mounted on the outermost end portion 80 of the pin 68 can be provided to further prevent accidental disconnection of the connecting'link 62 from the actuating rod 56.
In the specific construction illustrated, such means includes a washer 82 slipped over the outermost end portion 80 outside the rod end portion 74 and a cotter pin 84 inserted through an aperture in the outermost end portion 80.
Fastening mean~ is provided for pivotally mounting and locking the end 64 of the connecting link 62 on the steering arm 24. In the specifi~c construction illustrated, the end 64 of the connecting link 62 is provided with à flattened rod - ~ZU~35(~0 end portion 90 including an aperture 92 and is fastened to the steering arm 24 by a threaded fastener 94.
The fastener 94 has a threaded protion 96 which is threaded into and extends completely through the steering arm 24 and also includes a sleeve 98 which is pivotally received in the aperture 92 to permit relative pivotal movement of the steering arm 24 and the connecting link 62.
Locking means removably mounted on the fastener 94 can be provided to further prevent accidental disconnection of the connecting link 62 from the steering arm 24. In the specific construction illustrated, such.means includes a cotter pin lO0 inserted through an aperture in the part of the threaded portion 96 projecting exteriorly of rod end portion 90. Additional means can be used for retarding loosening of the fastener 94. For instance, a lock washer (not shown) can be used and a predetermined torque applied on the fastener 98 during tightening.
From the above description, it can be seen that the mounting arrangement for the opposite ends of the connecting link 62 permits.the connecting link 62 to be mounted and positively locked on the actuating rod 56 and on the steering arm 24 with a minimum of separate, loose part~, thereby minimizing the omission and/or improper installation of one or more parts.
Vaxious of the feature~ of the invention are set forth in the following claims:
STEERING ARRANGEMENT FOR MARINE PROPULSION D~VIOE
Inventor: William W. Baars BACKGROUND OF THE INVENTION
This invention relates to marine propulsion devices such as outboard motors and stern drive units and, more particularly, to steering arrangements for marine propulsion devices.
Marine propulsion devices, such aQ
outboard motors and stern drive units, typically include an actuating member slidably mounted in a horizontal hollow tilt tube or pin which affords vertical swinging movement of a propulsion unit. A
link operably connects this actuating member to a tiller or steering arm on the propulsion unit and the ~5 actuating member is reciprocated inside the til~ pin to swing the propulsion unit about a vertical steering axiC in response to movement of an input member, such as a flexible push-pull cable, connected to a steering wheel or other suitable remove steering control. The pivotal connections between the opposite ends of tho connecting link and the actuating member and the steering typically include several parts. Consequently, an installer can omit and/or improperly install one or more of these parts, resulting in faulty steering operation and/or possible accidental disconnection of the connecting link during operation.
Attention is directed to the following United State- patents relating to steering 3~ arrangements for marine propulsion devices:
Patentee Patent No. Issue Date Post 2,875,722 March 3, 1959 Borst 3,774,568 November 27, 1973 Borst et al 4,054,102 October 18, 1977 ~ . .
lZ085(:~0 Attention is also directed to the following United States patents relating to various fastening means:
PatenteePatent No. Issue Date Bolles462,648 November 3, 1981 Woodward635,833 October 31, 1899 Gilbert1,255,406 February 5, 1918 Winning1,~37,004 December 15, 1931 SUMMARY OF THE INVENTION
The invention provides a marine propulsion device including a propulsion unit connected to a hollow tilt pin by means affording swinging movement of the propulsion unit about the tilt pin axis and affording swinging movement of the propulsion unit about a steering axis perpendicular to the tilt pin axis, an actuating member including a portion slidably mounted inside the tilt pin, a steering control including an input member connected to the actuating member for eEfecting steering movement in response to operation of the steering control, a connecting link, and first and second fastening means pivotally connecting the opposite ends of the connecting link to the actuating member and the steering arm, respectively, to cause swinging movement of the propulsion about the steering axis in response to operation of the steering control. The first fastening means includes a circular aperture in one end of the actuating member and the connecting link has a terminal portion in the form of a general cylindrical pin extending through the actuating member aperture. The pin Ihas a substantially straight shank portion pivotally received in the actuating member aperture and an outermost end 1~085(~0 portion angularly related to the shank portion and projecting exteriorly of the actuating member so that the connecting link must be rotated relative to the actuating member to permit the pin to be withdrawn through the aperture. The second fastening means prevents rotation of said connecting link relative to said actuating member to a position wherein said outer~ost end portion of said pin can be withdrawn from the actuating member aperture~
1~ In one embodiment, the first fastening means further includes a pin locking mean~ removably mounted on the outermost end portion of the pin ~o further prevent accidental disconnection of the pin from the actuating member.
In one embodiment, the second fastening means includes a circular aperture in the other end of the connecting link and a fastening member having a threaded portion threaded into the steering arm and a cylindrical sleeve pivotally received in the connecting link aperture~
In one embodiment, the threaded portion of the fastener member includes an outermost end portion projecting exteriorly of the steering arm and locking means is removably mounted on the outermost end of the threaded portion to prevent the fastener from being removed from the steering arm.
One of t~e principal features of the invention is the provision of a marine propulsion device having a steering arrangement including a minimum number of parts for connecting a remote steering control to the propulsion unit.
Another of the principal features of the invention is the provision of a marine propulsion device including a hollow tilt pin mechanism and a 1~085~0 steering arrangement including an actuating member slidably mounted inside the tilt pin, a link operably connecting the actuating member to a steering arm on the propulsion unit, and simplified fastening means for pivotally connecting the opposite ends of the connecting link to the actuating member and the steering arm.
A further of the principal features of the invention is the provision of a marine propulsion device described in the next preceding paragraph with one end of the connecting link arranged to provide an interference type locking connection with the actuating member.
Other featuxes, aspects and advantages of the invention will become apparent to those skilled in the art upon reviewing the detailed description, the drawing and the appended claims.
BRIEF DESCRIP$IO~ OF THE DRAWING
Fig. l is a partially schematic, partially section and fragmentary vie~ of a steering arrangement for a marine-propulsion device incorporating various of the features of the invention. -Fig. 2 is an enlarged, partially fragmentary, and partially section view of the link operably connecting the actuating member to the propulsion unit steering arm, Fig. 3 is an enlarged fragmentary view of one end of the connecting link shown during initial assembly with thQ actuating member.
Before explaining at least one of the embodiments of the invention in detail, it i9 to be -understood that tXe invention is nGt limited in its ~ZV85(D0 application to the details of construction and the arrangement of components set forth in the following description or illustrated in the drawing~ The invention is capable of other embodiments and of being carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein is for the purpose of description and should not be regarded as limiting.
DESCRIPTIO~ OF THE PREFERRED EMBODIME~TS
:
Illustrated in the drawing is an outboard motor 10 including a clamp or transom bracket 12 adapted for connecting the outboard motor 10 to a boat hull 14 in a conventional manner and a swivel bracket 16 connected to the transom bracket by a hollow tilt tube or pin 18 which, in the usual manner, affords vertical swinging movement of the swivel bracket 16 relative to the transom bracket 12 about a horizontal axis. I
The outboard motor 10 also includes a propulsion unit 20 (illustrated by phantom lines) carrying a rotatably mounted propeller 21 which is normally submerged in the water. The propulsion unit 20 is connected to the swivel bracket 16 via a king pin 22 fox common tilting movement and for steering movement relative to the swivel bracket 16 about a vèrtical steering axis perpendicular to the axis of the tilt pin 18. Steering movement of the propulsion unit 10 is effected by pivotal movement of a tiller or steering arm 24 in a plane perpendicular to the steering axis.
The steering arm 24 is operated by a steering arrangement 26. In the specific-construction illustrated, the steering arrangement 26 12085(~0 includes a control mechanism such as a steering wheel 28 mounted on a steerings shaft 30 supported in a housing 32 and carrying an operating lever 34.
- The steering arrangement 26 also includes a flexible push-pull cable 36 housed in an outer flexible conduit or sheath 38. One end 40 of the cable sheat 38 is fixedly connected to the steering housing 32 and the other end 42 is fixedly connected to the tilt pin 18. In this regard, a female socXet 44 on the end 40 of the cable sheath 38 is threaded into a hollow nipple (not shown) on the steering housing 32 and a female socket 48 on the other end 42 of the cable sheath 38 is threaded onto a threaded end portion 50 on the tile pin 18.
lS The push-pull cable 36 is movable lengthwise within the sheath 38~ One end 52 of the cable 36 is connected to the operating lever 34 and the other end 54 is connected to one end of an actuating member 55 including an actuating element or rod 56 partially disposed in a slide tube 58 which is slidably mounted inside the tilt pin 18.
The slide tube 58 is secured to the actuating rod 56 so that the slide tube 58 reciprocates inside the tilt pin 18 in response to movement of the push-pull cable 36 when the steering wheel 28 is turned.
~n end 60 of the actuating rod 56 projects from the slide tube 58 and is connected to the steering arm 24 via a connecting link 62. One end 64 of the connecting link 62 is connected to the steering arm 24 for pivotal movement about an axis parallel to the steering axis. The other end 66 of the connecting link 62-is connected to the outer end 60 of the actuating rod 56 for pivotal movement about another axis parallel to the steering axis.
lZ08S~i'O
Fastening means is provided for pivotally mounting and positively locking the end 66 of the connecting link 62 on the outer end 60 of the actuating rod 56 with a minimum number of parts. I~
the specific instruction illustrated, the end 6.6.Q~
the connectin~ link 62 includes a terminal portion in the form of an elongate, generally cylindrical pin 68 having an outside diameter less than that of the ~ai~
body 70 of the connecting link 62 to define a shoulder 72 therebetween. The outer end 60 of thè-actuating rod 56 has a flattened rod end portion 7.4 including a circular aperture 76 for receiving the pin 68. The inside diameter of the aperture 76 is only slight~y larger than the outside diameter of the pin 68.
The pin 68 is bent or otherwise formed to provide a substantially straight shank portion 78 and an angularly related outermost end portion 80.
The shank portion 78 is somewhat longer than the thickness of the rod end portion 74 of the actuating rod 56. The shank portion 78 is received in the aperture 76 to permit relative pivotal movement of the connecting link 62 and the actuating rod 56 and the angular outermost end portion 80 projects exteriorly of the rod end portion 74.
For assembly, the pin 68 is inserted into the aperture 76 by first rotating the connecting link 62 relative to the actuating member 55 to a position wherein the axis of the outermost end portion 80 i9 generally coaxial with the axis of the actuating rod aperture 76 as shown in Fig. 3. After the outPrmost end portion 80 has been inserted into the aperture 76, the connecting link 62 then is rotated relative to tile actuating member 55 to a lZ~)8SG`O
position where the axis of the shank portion 78 is generally coaxial with the axis of the aperture 76.
The shank portion 78 can then be inserted into the aperture 76 until the shoulder 72 engages the ~urface of the rod end portion 74 of the actuating rod 56 and the connecting link 62 can be moved to its assembly position where the other end 64 of the connecting link 62 can be fastened to the steering arm 24 as shown in Fig. 2.
Once the connecting link 62 is fastened to steering arm 24, the outermost end portion 80 of the pin 68 provides an interference type lock against accidental disconnection from the actuating rod 56.
That is, the end 64 of the connecting link 62 first must be disconnected from the steering arm 24 and the connecting link 62 than rotated relative to the actuating member 55 to a position wherein the axis of the outermost end portion 80 is generally coaxial with the axis of the aperture 76 before the pin 68 can be completely withdrawn from the aperture 76.
Locking means removably mounted on the outermost end portion 80 of the pin 68 can be provided to further prevent accidental disconnection of the connecting'link 62 from the actuating rod 56.
In the specific construction illustrated, such means includes a washer 82 slipped over the outermost end portion 80 outside the rod end portion 74 and a cotter pin 84 inserted through an aperture in the outermost end portion 80.
Fastening mean~ is provided for pivotally mounting and locking the end 64 of the connecting link 62 on the steering arm 24. In the specifi~c construction illustrated, the end 64 of the connecting link 62 is provided with à flattened rod - ~ZU~35(~0 end portion 90 including an aperture 92 and is fastened to the steering arm 24 by a threaded fastener 94.
The fastener 94 has a threaded protion 96 which is threaded into and extends completely through the steering arm 24 and also includes a sleeve 98 which is pivotally received in the aperture 92 to permit relative pivotal movement of the steering arm 24 and the connecting link 62.
Locking means removably mounted on the fastener 94 can be provided to further prevent accidental disconnection of the connecting link 62 from the steering arm 24. In the specific construction illustrated, such.means includes a cotter pin lO0 inserted through an aperture in the part of the threaded portion 96 projecting exteriorly of rod end portion 90. Additional means can be used for retarding loosening of the fastener 94. For instance, a lock washer (not shown) can be used and a predetermined torque applied on the fastener 98 during tightening.
From the above description, it can be seen that the mounting arrangement for the opposite ends of the connecting link 62 permits.the connecting link 62 to be mounted and positively locked on the actuating rod 56 and on the steering arm 24 with a minimum of separate, loose part~, thereby minimizing the omission and/or improper installation of one or more parts.
Vaxious of the feature~ of the invention are set forth in the following claims:
Claims (7)
1. A marine propulsion device comprising a hollow tilt pin adapted to be attached to a boat hull, a propulsion unit including a rotatably mounted propeller, means connecting said propulsion unit to said tilt pin for affording swinging movement of said propulsion unit about the axis of said tilt pin and for affording swinging movement of said propulsion unit about a steering axis perpendicular to the tilt pin axis, an actuating member including a portion slidably mounted inside said tilt pin, a first end, and a second end projecting from said tilt pin, a steering control including an input member for effecting steering movement in response to operation of the steering control and having one end connected to the first end of said actuating member to effect reciprocal movement of said actuating member relative to said tilt pin in response to movement of said input member, a steering arm fixedly connected to said propulsion unit, a connecting link having first and second ends, first fastening means pivotally connecting the first end of said connecting link to the second end of said actuating member, said first fastening means including a circular aperture in the second end of actuating member and the first end of said connecting link having a terminal portion in the form of a generally cylindrical pin extending through said actuating member aperture, said pin having a substantially straight shank portion pivotally received in said actuating member aperture and an outermost end portion angularly related to said shank portion and projecting exteriorly of said actuating member such that said connecting link must be rotated relative to said actuating member to permit said outermost and portion of said pin to be withdrawn through said actuating member aperture, second fastening means connecting the second end of said connecting link to said steering arm to cause swinging movement of said propulsion unit about the steering axis in response to operation of said steering control and for preventing rotation of said connecting link relative to said actuating member to a position wherein said outermost end portion of said pin can be withdrawn from said actuating member aperture.
2. A marine propulsion device, according to Claim 1 wherein said first fastening means further includes a pin locking means removably mounted on the outermost end portion of said pin for preventing disconnection of said pin from said actuating member.
3. A marine propulsion device according to Claim 2 wherein said pin means comprises an aperture in said outermost end portion of said pin and a cotter pin mounted in said pin aperture.
4. A marine propulsion device according to Claim 1 wherein said second fastening means includes a circular aperture in the second end of said connecting link and a fastening member having a threaded portion threaded into said steering arm and a cylindrical sleeve pivotally received in said connecting link aperture.
5. A marine propulsion device according to Claim 4 wherein the threaded portion of said fastening member includes an outermost end portion projecting exteriorly of said steering arm and wherein said second fastening means includes a fastening member locking means removably mounted on the outermost end portion of said threaded portion to prevent said fastening member from being removed from said steering arm.
6. A marine propulsion device according to Claim 5 wherein said fastening member locking means comprises an aperture in the outermost end portion of said threaded portion and a cotter pin mounted in said threaded member aperture.
7. A marine propulsion device comprising a hollow tilt pin adapted to be attached to a boat hull, a propulsion unit including a rotatably mounted propeller, means connecting said propulsion unit to said tilt pin for affording swinging movement of said propulsion unit about the axis of said tilt pin and for affording swinging movement of said propulsion unit about a steering axis perpendicular to the tilt pin axis, an actuating member including a portion slidably mounted inside said tilt pin, a first end, and a second end projecting from said tilt pin, a steering control including an input member for effecting steering movement in response to operation of said steering control and having one end connected to said first end of said actuating member to effect reciprocal movement of said actuating member relative to said tilt pin in response to movement of said input member, a steering arm fixedly connected to said propulsion unit, a connecting link having first and second ends, first fastening means pivotally connecting said first end of said connecting link to said second end of said actuating member, said first fastening means including a circular aperture in said second end of actuating member, said first end of said connecting link having a terminal portion in the form of a generally cylindrical pin extending through said actuating member aperture, said pin having a substantially straight shank portion pivotally received in said actuating member aperture and an outermost end portion angularly
7. A marine propulsion device comprising a hollow tilt pin adapted to be attached to a boat hull, a propulsion unit including a rotatably mounted propeller, means connecting said propulsion unit to said tilt pin for affording swinging movement of said propulsion unit about the axis of said tilt pin and for affording swinging movement of said propulsion unit about a steering axis perpendicular to the tilt pin axis, an actuating member including a portion slidably mounted inside said tilt pin, a first end, and a second end projecting from said tilt pin, a steering control including an input member for effecting steering movement in response to operation of said steering control and having one end connected to said first end of said actuating member to effect reciprocal movement of said actuating member relative to said tilt pin in response to movement of said input member, a steering arm fixedly connected to said propulsion unit, a connecting link having first and second ends, first fastening means pivotally connecting said first end of said connecting link to said second end of said actuating member, said first fastening means including a circular aperture in said second end of actuating member, said first end of said connecting link having a terminal portion in the form of a generally cylindrical pin extending through said actuating member aperture, said pin having a substantially straight shank portion pivotally received in said actuating member aperture and an outermost end portion angularly
Claim 7 (continued) related to said shank portion and projecting exteriorly of said actuating member so as to prevent withdrawal of said outermost end portion of said pin from said actuating member aperture in the absence of rotation of said pin relative to said actuating member about an axis transverse to the axis of pivotal movement between said first end of said connecting link and said second end of said actuating member, and second fastening means connecting said second end of said connecting link to said steering arm to cause swinging movement of said propulsion unit about the steering axis in response to operation of said steering control and for preventing rotation of said connecting link relative to said actuating member about the transverse axis to a position wherein said outermost end portion of said pin can be withdrawn from said actuating member aperture, said second fastening means including a circular aperture in the second end of said connecting link, a cylindrical sleeve pivotally received in said connecting link aperture, and a fastener member extending through said sleeve and having a threaded portion threaded into said steering arm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49078983A | 1983-05-02 | 1983-05-02 | |
| US490,789 | 1983-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1208500A true CA1208500A (en) | 1986-07-29 |
Family
ID=23949479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000443773A Expired CA1208500A (en) | 1983-05-02 | 1983-12-20 | Steering arrangement for marine propulsion device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS59209994A (en) |
| CA (1) | CA1208500A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920844A (en) * | 2019-12-25 | 2020-03-27 | 义乌哒林船舶有限公司 | Marine propeller with adjustable pitch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3207117A (en) * | 1964-08-25 | 1965-09-21 | Elmer R Nolen | Outboard motor steering assembly |
| US3774568A (en) * | 1972-04-17 | 1973-11-27 | Outboard Marine Corp | Rotary cable steering system |
| JPS5427496U (en) * | 1977-07-26 | 1979-02-22 |
-
1983
- 1983-12-20 CA CA000443773A patent/CA1208500A/en not_active Expired
-
1984
- 1984-05-02 JP JP8921384A patent/JPS59209994A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110920844A (en) * | 2019-12-25 | 2020-03-27 | 义乌哒林船舶有限公司 | Marine propeller with adjustable pitch |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59209994A (en) | 1984-11-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |