AU676692B2

AU676692B2 - Improved winch handle

Info

Publication number: AU676692B2
Application number: AU51815/93A
Authority: AU
Inventors: Geoffrey David Cropley
Original assignee: Titan Australia Pty Ltd
Current assignee: Titan Australia Pty Ltd
Priority date: 1993-02-25
Filing date: 1993-11-19
Publication date: 1997-03-20
Anticipated expiration: 2013-11-19
Also published as: AU5181593A

Description

AUSTRALIA

Patents Act 1990 COMPLETE SPEC I F ICATION FOR A STANDARD PATENT

ORIGINAL

ot Name of Applicant: Actual Inventor: Address for Service: Invention Title: Details of Associated Provisional Application: TITAN AUSTRALIA PTY LIMITED ACN 0055 285 955 GEOFFREY DAVID CROPLEY H. R. HODGKINSON CO.

Patent and Trade Mark Attorneys 26A Alfred Street Milsons Point NSW 2061 "Improved Winch Handle" PL7507 of 25 February 1993 r 0 r The following statement is a full description of this invention, including the best method of performing it known to us: BACKGROUND TO THE PRESENT INVENTION This invention relates to a winch handle and in particular to a winch handle which has improved features of strength and rigidity. In a preferred form of the invention the winch handle is a winch handle formed substantially of a plastics material which is used as a marine winch handle. It is however envisaged that the winch handle of the present invention can have other uses, such as being used as a handle for other forms of winches.

10 In our international patent application No PCT/AU92/00256, we disclose a buoyant winch handle which includes an elongate recessed body portion of a substantially open faced "U" configuration when viewed in cross-section. A spigot is provided adjacent one end of the winch handle to allow the h'ndle to be releasably engaged with a winch and a hand grip is provided at the other end. Reinforcing webs and transverse S'dividing walls are provided within the recessed body portion to strengthen the body portion. Further, a flat cover is provided and this sealably engages with and over the open 20 face of the body portion, so as to form a reinforced flotation/buoyancy chamber. The invention of our international patent specification No PCT/AU92/00256 overcomes problems which have been commonly associated with winch handles previously used, especially with marine craft, such as boats, sailing craft, yachts and the like. In using previously known winch handles, there has always been a problem that such winch handles have often fallen over board, or been knocked over the side of a marine craft, to thus sink to the bottom. Such winch handles are often particularly expensive both to manufacture and purchase. Thus, the loss of winch handles "overboard" from marine craft involves not only inconvenience and a risk to safety, but also substantial expense. The winch handle disclosed in our international patent application No PCT/AU92/00256 qoes at least some way towards overcoming or minimising these problems by providing an essentially flotable winch handle.

The present invention sets out to provide a further form of winch handle which, while in a preferred form of the invention, is floatable, need not necessarily be so. However, the winch handle of the present invention sets out to provide a winch handle with superior inherent features of strength and rigidity.

The winch handle of our international patent application No 10 PCT/AU92/00256 is particularly effective in use and is floatable. Further, it has inherent features of strength, given that winch handles (and in particular winch handles used on marine craft) are subject to substantial stresses, strains and torque. However, the winch handle of the present invention sets out to provide features of even greater strength to further enhance the features of strength and rigidity in so far as the winch handle is concerned.

Other objects of the present invention will become apparent from the following description.

20 SUMMARY OF THE PRESENT INVENTION oo.eoi According to one aspect of this invention there is provided a winch handle including an elongate recessed body portion of a substantially open-faced configuration when viewed in cross-section; reinforcing means being provided within said body portion; an elongate recessed cover portion being provided and being of a substantially open-faced iqrv ted "U" configuration when viewed in cross-section; reinforcing being provided within said cover portion; said body portion and said cover portion being so formed and adapted as to engage one with the other substantially open-face to open-face, and said body portion and cover portion being sealably engaged eeo oo ooooo oo oo oee o eee ae one with the other, to form an elongate reinforced shaft for said winch handle.

According to a further aspect of this invention there is provided a winch handle including an elongate recessed body portion of a substantially open-faced configuration when viewed in cross-section; means being provided at or adjacent one end thereof to allow for said winch handle to be releasably engaged with a winch; means being provided at the other end of said body portion in the form of, or to be 10 attached or connected to, grip means; reinforcing means being provided within said body portiop; and further including an elongate cover portion of a substantially open-faced inverted configuration when viewed in cross-section; reinforcing means being provided within said cover portion; outer sides 15 of said body portion and said cover portion being formed so as to allow for a substantially open-face to open-face engagement between said body portion and said cover portion; and wherein said body portion and said cover portion are so sealably engaged one with the other, so as to form an integral reinforced winch handle.

o s r o BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS This invention will now be described by way of example only and with reference to the accompanying drawings, wherein: Fig. 1 Fig. 2 is a perspective view of a winch handle according to one form of the present invention, is an exploded longitudinal side view of a winch handle according to one form of the present invention and as generally shown in Fig. 1 of the drawings, and

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Fig. 3 is a cross-sectional view of exploded portions of the winch handle along lines A-A as generally shown in Fig. 2 of the accompanying drawings.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS The invention will now be described by way of example only with reference to the accompanying drawings. While the invention has particular application to handles and winch handles for use with marine craft, it should be appreciated that the winch handle of the present invention can be used in i0 other situations and in connection with other winches and the *"like. The invention is not intended to be limited to use with marine craft or marine winches.

In referring to the accompanying drawings, it should be appreciated that for ease of explanation, Fig. 2 of the :15 drawings shows an exploded winch handle showing exploded portions of the winch handle, in a substantially inverted position relative to the normal orientation of a winch handle oeolo: S(as for example shown in Fig. 1 of the accompanying o drawings). The illustration of the winch handl.e in Fig. 2 of the accompanying drawings is however for ease of description and it should be appreciated that in normal use, a winch S" handle will ncrmally be used in the general orientation shown, by way of example only, in Fig. 1 of the drawings, The winch handle 1 of the present invention is preferably formed of a plastics material, such as for example a nylon plastics material, which is suitably reinforced, such as with fibreglass or the like, for strength and rigidity. Other reinforced plastics materials can however be used. It should be appreciated however that the winch handle can be provided and formed of other appropriate synthetic, plastics or lightweight materials.

The winch handle 1 includes a substantially elongate recessed body portion 2 being of a substantially inverted "U" formation d.2en viewed in cross-section so as to form a recessed elongate body portion 2. The body portion 2 has an open-face 6 with outwardly extending sides 3 and a base 4. As will be appreciated however, in its normal orientation for use, the base 4 becomes the upper face surface of the winch handle when the winch handle is in the general orientation shown by way of example in Fig. 1 of the drawings.

10 The body portion 2 is preferably integrally formed or molded as an integral unitary formation and as referred to above, the open-face 6 of the body portion 2 will normally form the •underside thereof, while the outer surface of the base 4 will form the upper surface of the winch handle.

In one preferred form of the invention the body portion 2 is "substantially curvilinear. This is however by way of example only.

At one end 2a of the body portion 2, a grip means 8 is provided for gripping or holding by a user or operator. The 20 grip means 8 includes an upstanding grip mounting about which may be located a grip housing. Other grips or handles can oeooo however be provided.

At the other end 2c of the body portion 2, means are provided for the winch handle to be releasably engaged with a winch (not shown) for operation thereof. In preferred forms of the invention the engagement means is in the form of a spigot member 31, such as for example a tooth spigot which is adapted to releasably engage with a winch to allow for operation thereof. Appropriate locking and release means can be provided in association therewith to allow for the releasable locking and release of the spigot 31 relative to a winch (not shown). In one form of the invention the spigot 31 is formed or cast of an aluminium or metal material, but this is by way of example only, and other materials can be used.

The recessed body portion 2 of the winch handle 1 is formed or provided with reinforcing therein, in the form of integrally formed or moulded webs, being transverse webs and angled webs 16. These webs 15, 16 are integrally formed within the recess of the body portion 2 and extend between sides thereof, to impart strength and rigidity to the winch handle and so as to minimise or overcome any problems 10 associated with the twisting of the winch handle when torque •is applied thereto. In a preferred form of the invention as shown in the accompanying drawings, the transverse reinforcing webs 15 are longitudinally spaced apart with angled web 16 (of a generally configuration) extending therebetween.

S" The reinforcing webs 15, 16 are of such a height and extend upwardly from within the recess of the body portion 2 to such an extent as to be spaced apart from and below outer side "ends 3a of the sides 3 of the body portion 2.

20 Preferably, the upper side ends 3a of the sides 3 are stepped e or profiled so as to allow for engagement with a cover means or cover portion 20, as will be described hereinafter.

the handle of the present invention further includes a cover portion 20 whicl 7c.ngate in formation and of a width and length such as to enge. e with and over the open upper face 6 of the body portion 2. This will be described hereinafter.

The elongate cover portion 20 is formed with a base 21 and outwardly extending side arms 22, so as to define an elongate open-faced cover portion of a generally open-faced inverted configuration when viewed in cross-section (in Figures 2 and 3 of the drawings).

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While the base 21 is so described, (with reference to Fig. 1) it will be appreciated that in the exploded forms of the winch handle shown in Figures 2 and 3 of the accompanying drawings, the base 21 is in fact the upper surface 21. As will be appreciated however from Fig. 1 of the accompanying drawings, in the normal orientation of the winch handle i, the surface 21 is the base surface 21.

Outer ends 22a of the sides 22 of the cover portion 20 are so stepped or profiled as to engage with stepped outer side ends i 3a of the sides 3 of the body portion 2.

Within the recessed cover portion 20, reinforcing means are provided in the form of transverse reinforcing webs 25 and .*0 angled reinforcing webs 26. The reinforcing webs 25, 26 are preferably located and so orientated, such as to correspond substantially to the location and orientation of transverse °and angled webs 15, 16 in the body portion 2. This will be described further hereinafter.

.000.: The reinforcing webs 25, 26 of the cover portion 20 extend Soutwardly from within the recessed cover portion 20, so as to 20 be spaced apart from and below the outer side ends 22a of the sides 22. Ends 20a and 20b of the cover portion 20 are so ooa0 formed and profiled as to releasably engage with and about profiled portions of the body portion 2, so that the cover portion 20 can be securely engage with and over the body portion 2, such that the reinforcing webs 16 of the body portion and 25, 26 of the cover portion align substantially one with the other and so that the profiled or stepped ends 3a of the sides 3 and 22a of the sides 22 of the body portion and cover portion respectively can engage one with the other.

In one preferred form of the invention, the outer side ends 3a and 22a of the body portion and cover are so profiled and dimensioned as to allow for a secure fitting engagement therebetween.

i On such engagement, the cover portion and body portion are securely engaged and sealed one with the other such as by bonding, ultrasonic welding, heat-welding or the like. Other securing and/or sealing means can be used. This then seals the body portion 2 and cover portion 20 relative to each other to form an integral elongate 'post like' handle which has substantially enhanced features of strength and rigidity, especially when torque is applied thereto, given the fact that substantial reinforcing webs are provided right through the recessed body portion and recessed cover portion which are sealably engaged one with the other. Given the sealable engagement, the cover portion and body portion are unable to be taken apart, and thus there are inherent features of strength and rigidity within the handle 1, especially when 15 twisting action is applied thereto, such as on the winch being used.

In one form of the invention the sealed winch handle 1 forms a sealed flotation or buoyancy chamber so that the handle 1 is preferably a floating winch handle. This is not however 20 essential to the performance of the invention in that the invention provides for substantially improved features of strength and rigidity brought about by the construction of the handle and the provision of the reinforcing webs within both the recessed body portion and recessed cover portion, which are sealably engaged one with the other. If however the winch handle is to be used as a floatable winch handle, then to enhance features of flotation and buoyancy, a foam (such as foam plastic) or the like can be added into the recessed body portion and/or recessed cover portion, so as to enter into those areas between the reinforcing webs. It is also envisaged that appropriate foam to enhance features of flotation and buoyancy can be inserted into the handle mounting means 8 or handle associated therewith.

The present invention provides a straightforward and efficient winch handle which has enhanced features of strength and rigidity and which overcomes or minimises at least some problems associated with winch handles known and used up until this time.

This invention has been described by way of example only and it should be appreciated that modifications and improvements may be made to the invention without departing from the scope thereof, as defined by the appended claims.

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Claims

2. A winch handle as claimed in claim i, wherein means are provided at or adjacent one end thereof to allow for said winch handle to be releasably engaged with a winch; means being provided at the other end in the form of, or to be attached or connected to, grip or handle means.
3. A winch handle as claimed in claim i, wherein said recessed body portion and said recessed cover portion are each formed or provided with transverse and angled S"reinforcing webs extending between inner side surfaces thereof, but being spaced apart from and below upper side edges thereof, the arrangement being such that on said body portion and said cover portion being located substantially open-face to open-face, respective transverse and angled reinforcing webs of said body portion and said cover portion, substantially align and correspond one to the other.
4. A winch handle as claimed in claim 1, including reinforcing in said recessed body portion and said recessed cover portion, in the form of alternate transverse and angled reinforcing webs, extending between inner side surfaces of said recessed body portion and said recessed cover portion. A winch handle as claimed in claim 1, wherein said reinforcing means includes angled reinforcing webs within seid recessed body portion and said recessed cover portion, of a substantially configuration.
6. A winch handle as claimed in claim 1, wherein upper side edges of said recessed body portion and said recessed cover portion are profiled as to allow for engagement o •therebetween. A winch handle as claimed in claim 1, wherein foamed plastics material is provided within said recessed body portion and/or said recessed cover portion, so as to enhance buoyancy of said winch handle. a
8. A winch handle as claimed in claim 1, wherein said body portion and said cover portion are sealably engaged one S" with the other by bonding, heat sealing and/or ultrasonic S" welding.
9. A winch handle as claimed in claim 1, formed of a reinforced plastics material. 9 ABSTRACT OF DISCLOSURE A winch handle is provided which includes an elongate recessed body portion of a substantially open-faced "U" configuration when viewed in cross-section, and an elongate cover portion of a substantially open-faced inverted "U" configuration when viewed in cross-section. Reinforcing means are provided within both the body portion and the cover portion, and outer sides thereof, are formed and profiled, so as to allow for substantial open-face to open-face engagement therebetween. The body portion and cover portion are sealably engaged one to the other, so to form an integral, reinforced, winch handle. e o S S -P e