Outboard Motor Stabilizer

Abstract

An outboard motor stabilizer of unitary construction has a cylindrical body and an axially oriented cylindrical orifice with an opening at the bottom end of the body. The orifice has a diameter sized to fit onto a tilt rod of an outboard motor and is of a length that is longer than the tilt rod of the outboard motor.

Claims

1. An outboard motor stabilizer for stabilizing an outboard motor during transport, said stabilizer comprising: a cylindrical body of unitary construction, said body comprising an axially oriented cylindrical orifice having an opening at a bottom end of said body wherein: an axial length of the orifice is less than the length of the body; a diameter of the orifice is sized to fit onto a tilt rod of the outboard motor; and the axial length of the orifice is greater than a length of the tilt rod.

2. The stabilizer of claim 1, wherein the body is made of injection molded semicrystalline thermoplastic.

3. The stabilizer of claim 1, wherein body has a length of between 6 and 12 inches.

4. The stabilizer of claim 1, wherein orifice has a length of between 3 and 6 inches.

5. The stabilizer of claim 1, wherein a ratio of a length of the body and a length of the orifice is between 1.5:1 and 2:1.

6. The stabilizer of claim 1, wherein a ratio of a diameter of the body around the orifice and a diameter of the orifice is between 1.75:1 and 2:1.

7. The stabilizer of claim 1, wherein a diameter of the cylindrical portion of the body is from 1 inch to 2 inches.

8. The stabilizer of claim 1, wherein a top portion of the body has a tapered shape, a stair step shape, or a domed shape.

9. The stabilizer of claim 8, wherein the top portion of the body has a tapered shape and a taper angle of 45 degrees.

10. The stabilizer of claim 1, wherein a top portion of the body has a bifurcated shape, a mushroom shape, or a wedge shape.

11. The stabilizer of claim 1, wherein a solid upper portion of the body comprises a hole passing radially through the body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS:

[0007] The elements of the drawings are not necessarily to scale relative to each other, with emphasis placed instead upon clearly illustrating the principles of the disclosure. Like reference numerals designate corresponding parts throughout the several views of the drawings in which:

[0008] FIG. 1 is a cross-sectional side view of an embodiment of an outboard motor stabilizer;

[0009] FIG. 2 is a top view of an embodiment of an outboard motor stabilizer;

[0010] FIG. 3 is a bottom view of an embodiment of an outboard motor stabilizer;

[0011] FIG. 4 is a bottom, front perspective view with inside cut reveal of an embodiment of an outboard motor stabilizer;

[0012] FIG. 5 is a bottom, front perspective view of an embodiment of an outboard motor stabilizer; and

[0013] FIG. 6 is a is a top, front perspective view of an embodiment of an outboard motor stabilizer.

DETAILED DESCRIPTION OF THE INVENTION:

[0014] All art specific terms used herein are intended to have their art-accepted meanings in the context of the description unless otherwise indicated. All non art specific terms are intended to have their plain language meaning in the context of the description unless otherwise indicated.

[0015] As used herein, terms such as “top,” “bottom,” “above,” “below,” “axial,” “upward”, “downward”, “inner”, “outer”, or the like are used for the purpose of facilitating a description of the invention in reference to the drawings. “Unitary construction” is used to mean a single piece that is not made by the connection of two or more pieces to one another.

[0016] FIG. 1 is a lengthwise cross sectional view a most preferred embodiment of an outboard motor stabilizer (10). FIG. 4 is a corresponding perspective view using finer dashed lines to show the position and shape of the orifice (12) in the stabilizer and coarser dashed lines marking upper and lower boundaries of a solid portion of the body (11). The stabilizer (10) is of a unitary construction with a body (11) comprising a generally cylindrically shape and comprising a cylindrically shaped orifice (12) that opens at the bottom end of the body (11). The body is preferably made by injection molding a semicrystalline thermoplastic such as an Acetal, a Nylon, a Polyethelyne, a Polybutylene terephthalate, a Polypropylene, a Polyetheretherketone, a Polyethylene terephthalate, a PPS, or a PVDF, polymer, with nylon 6/6, or Poly[imino(1,6-dioxohexamethylene) iminohexamethylene], being most preferred. The body (11) is shown in the figures with an optional through hole (14), which may be made during an injection molding process or drilled afterward.

[0017] The stabilizer (10) is sized so that the diameter (ID) of the orifice allows the lower portion of the body (11) to slide onto the tilt rod of a tilt and trim system of an outboard motor. The stabilizer body length (OL) is chosen so that a solid portion of the body (11) from the top end of the stabilizer (10) to the top end of the orifice (12) provides strength sufficient to support the weight of the outboard motor when the motor is trimmed down to rest on the top end of the stabilizer and at a desired trim angle. The length of the orifice (IL) may be from 3 to 6 inches, for example 4.625 inches. The length of the body (OL) may be from 6 to 12 inches, 6 to 11 inches, 7 to 11 inches, 6 to 10 inches, or 7 to 10 inches, for example 8 inches. A ratio of the length of the body (OL) and a length of the orifice (IL) is preferably be between 1.5:1 and 2:1.

[0018] The diameter of the orifice (ID) may be from 0.5 to 0.8 inches or 0.6 to 0.7 inches. While the diameter may be selected to fit snugly over the tilt rod, a diameter of 0.6875 inches is preferred for the most common embodiment for the stabilizer to slide onto the most common cylinder and fit without wiggle. The length of the orifice (IL) is longer than the tilt rod onto which the stabilizer (10) is placed so that no force is applied to the end of the tilt rod when the stabilizer is in place. The length of the orifice (IL) provides for a gap length between the end of the tilt rod and upper end of the orifice (12). The length (IL) of the orifice may be from 3 to 6 inches, for example 4.625 inches. The combination of an orifice (12) with a solid upper portion of the body (11) provides several advantages over a stabilizer having a passageway open at both ends. The present invention provides greater strength and resistance to compressive force along the axial length of the stabilizer (10), assures proper orientation of the stabilizer on the tit rod, and allows for the shape of the top end to be optimized for different surfaces contacted by the top end of the stabilizer.

[0019] FIGS. 2 and 3 show top and bottom views, respectively, of the embodiment shown in FIG. 1. The body (11) has an outer diameter (OD) in relation to the diameter (ID) of the orifice (12) that provides sufficient strength to resist compressive and other forces when in use. The body diameter (OD) may be from 1 to 2 inches, 1 to 1.6 inches, 1.1 to 1.5 inches, 1.2 to 1.4 inches, for example 1.25 inches or 1.5 inches. It is preferable that the OD exceeds the ID by 0.5 inches or more. The ratio of the diameter of the body around the orifice (OD) and the diameter of the orifice (ID) may be between 1.75:1 and 2:1.

[0020] The lower end of the body (11) (FIGS. 1 and 3) is shown as having a preferred flat surface. The lower end of the body (11) may alternatively a donut shape, a beveled shape, or other shape. The upper end of the body (11) is shown as having a tapered, or beveled shape in FIG. 1 and as having a flat shape in FIG. 5. The taper is shown as having a taper angle (α1) and a taper length (TL). The taper angle (α1) shown in FIG. 1 is 45 degrees and the angle may be greater or smaller than this value to provide a longer or shorter taper length (TL) and resulting in a longer or shorter inner diameter (ID′) at the upper end. FIG. 6 provides an elevated view of the stabilizer to show a beveled shape of the top end. The upper end of the body (11) may alternatively be flat, have a domed shape, a mushroom shape, or a wedge shape, or have a stair step shape with a central portion of the body extending upward beyond a perimeter portion. Additionally or alternatively, the upper end of the body (11) may be bifurcated to form a Y-shape or U-shape.

[0021] The stabilizer (10) may comprise a through hole (14) that may be used to connect the stabilizer to a cord, string, wire, or the like (not shown). It may be convenient, for example, to connect two stabilizers to one another with a length of string to keep them together. The string may also be used to attach one or a pair of stabilizers to a part of a boat or trailer when they are not in use.