AU2015203393B2 - Anchor Winch - Google Patents
Anchor Winch Download PDFInfo
- Publication number
- AU2015203393B2 AU2015203393B2 AU2015203393A AU2015203393A AU2015203393B2 AU 2015203393 B2 AU2015203393 B2 AU 2015203393B2 AU 2015203393 A AU2015203393 A AU 2015203393A AU 2015203393 A AU2015203393 A AU 2015203393A AU 2015203393 B2 AU2015203393 B2 AU 2015203393B2
- Authority
- AU
- Australia
- Prior art keywords
- drive wheel
- winch
- drum
- ratchet toothed
- wheel
- 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.)
- Active
Links
Landscapes
- Wind Motors (AREA)
- Transmission Devices (AREA)
Abstract
A channel-section stainless steel base 2 has a slot 4 for the reception of drive shaft 6.
Shaft 6 connects with worn drive gearbox 8 to which is joined de motor 10. This is
driven by the boat's batteries. Motor 10 and gearbox 8 are secured to base 2 by fasteners
12. Winch drum 14 is free to spin on shaft 6 but can be slowed by plunger 16 pressing
against friction disc 18 fastened to one face of drum 14. To the opposite face 20 of drum
14 is attached a ratchet toothed wheel 22. Drive shaft 6 has a band which bears an
exterior male thread 24 in order to receive gear wheel 26 which has a bore provided with
a corresponding female thread. To the interior face of the gear wheel is attached a
complimentary ratchet wheel 28. The pair are free to rotate with the drive shaft but if the
gear wheel is retarded even slightly the gear wheel will progress axially, driven by the
threaded band in the direction imposed by the motor 10.
8
12.2
41
116
a. ia 20
1~ t Fj
30
Description
12.2
41
116
a. 20 ia
1~ t Fj
Anchor Winch
This invention concerns motorised winches especially those for marine use.
The following references to and descriptions of prior proposals or products are not intended to be, and are not to be construed as, statements or admissions of common general knowledge in the art. In particular, the following prior art discussion does not relate to what is commonly or well known by the person skilled in the art, but assists in the understanding of the inventive step o of the present invention of which the identification of pertinent prior art proposals is but one part.
Boat anchor winches are driven by the boat's batteries and if the drum is coupled to the drive, dropping the anchor takes the same length of time as winding in the anchor.
An object of the present invention is to ameliorate the aforementioned disadvantages of the prior art or to at least provide a useful alternative thereto.
The apparatus aspect of the invention provides a winch having dual mode operation in which in raise mode the winch drum winds and in drop mode the winch drum is free to rotate, wherein the drive shaft has a drive wheel beside the winch drum operable to connect and disconnect drive to the drum and axial movement of the wheel in one direction connects the wheel and drum and in the reverse direction disconnects the wheel and drum.
In another aspect, the invention provides:
A winch having dual mode operation in which, in raise mode, a winch drum winds and, in a drop mode, the winch drum is free to rotate, wherein: a drive shaft has a drive wheel beside the winch drum operable to connect and disconnect a drive to the winch drum; a complementary ratchet toothed drive wheel is connected to the drive wheel; axial movement of the drive wheel in one direction operatively connects to the winch drum to the complementary ratchet toothed drive wheel; axial movement of the drive wheel in a reverse direction operatively disconnects the complementary ratchet toothed drive wheel and the winch drum; and the drive wheel is fixed to the complementary ratchet toothed drive wheel and a drum drive wheel is fixed to a drum ratchet toothed drive wheel, the complementary ratchet toothed drive wheel o and the drum ratchet toothed drive wheel each having respective teeth adapted to inter-engage.
The wheel and drum may have complimentary friction faces in order to transmit the drive. Alternatively the wheel and drum may have inter-engaging teeth like a dog clutch.
The shaft may have a threaded portion, the bore of the wheel may have a complimentary thread and the wheel may connect with retarding means, whereby retardation of the wheel causes the wheel to move axially according to the direction of rotation of the shaft.
Thus if the winch is in drive mode the wheel moves toward the drum and the teeth engage, causing the drum to wind.
If the operator changes to drop mode, the wheel moves away from the drum, the teeth disengage allowing the drum to remain still or unwind.
The retarding means may be a brake. When the wheel is a gear wheel, the brake may be a pinion which meshes with the wheel, the resulting friction being sufficient to cause the gear wheel to feed toward and away from the drum.
Preferably the pinion is controlled by a unidirectional retarding means.
The winch drum may have a conventional brake for slowing anchor descent.
Advantageous Effects of Invention
1. The device provides a drive which uncouples from the winch drum to allow the anchor to drop under its own weight.
2. The retardation force acts to both couple and uncouple the drive to the drum.
The invention may be better understood from the following non-limiting description of preferred embodiments, in which:
Figure 1 is a plan of the winch.
Figure 2 is a side view of Figure 1.
o Figure 3 is a sectional view of the retarding device.
Preferred features of the present invention will now be described with particular reference to the accompanying drawings. However, it is to be understood that the features illustrated in and described with reference to the drawings are not to be construed as limiting on the scope of the invention.
Referring now to the drawings, a winch having dual mode operation in which, in raise mode, a winch drum 14 winds and, in a drop mode, the winch drum 14 is free to rotate, wherein:
a drive shaft (see ref. 4 in Fig. 1) has a drive wheel (gear wheel 26) beside the winch drum 14 operable to connect and disconnect a drive 10 to the winch drum 14;
a complementary ratchet toothed drive wheel 28 is connected to the drive wheel 26;
axial movement of the drive wheel 26 in one direction operatively connects to the winch drum 14 to the complementary ratchet toothed drive wheel 28; axial movement of the drive wheel 26 in a reverse direction operatively disconnects the complementary ratchet toothed drive wheel 28 and the winch drum 14; and the drive wheel 26 is fixed to the complementary ratchet toothed drive wheel 28 and a drum drive wheel (opposite face 20) is fixed to a drum ratchet toothed drive wheel 22, the complementary ratchet toothed drive wheel 28 and the drum ratchet toothed drive wheel 22 each having respective teeth adapted to inter-engage.
The winch is shown with a channel-section stainless steel base 2 that has a slot 4 for the reception of a drive shaft 6. The shaft 6 connects with a worm drive gearbox 8 which is joined to a dc motor 10. This is driven by the boat's batteries. Motor 10 and gearbox 8 are secured to the base o 2 by fasteners 12.
The winch has a dual mode operation in which, in raise mode, a winch drum 14 winds and, in a drop mode, the winch drum 14 is free to rotate. The drive shaft 6 has a drive wheel 26 beside the winch drum 14 that is operable to connect and disconnect the drive 8 to the winch drum 14. Axial movement of the drive wheel 26 in one direction (away from winch drum 14) operatively connects to the winch drum 14 a ratchet toothed drive wheel 28 that is connected to the drive wheel 26. Axial movement of the drive wheel 26 in a reverse direction (toward the winch drum 14) operatively disconnects the ratchet toothed drive wheel 26 and the winch drum 14.
Winch drum 14 is free to spin on shaft 6 but can be slowed by plunger 16 pressing against friction disc 18 fastened to one face of drum 14. To the opposite face 20 of drum 14 is attached a ratchet toothed wheel 22.
The drive shaft 6 has a threaded portion 24, a bore of the drive wheel 26 has a complementary thread and the drive wheel 26 connects with a retarding means 30. In particular, the drive shaft 6 has a band which bears an exterior male thread 24 in order to receive gear wheel 26 which has a bore provided with a corresponding female thread (not shown). To the interior face of the gear wheel is attached a complimentary ratchet wheel 28. The pair are free to rotate with the drive shaft but if the gear wheel is retarded even slightly the gear wheel will progress axially, driven by the threaded band in the direction imposed by the motor 10.
Referring now to Figure 3, the pinion 30 rotates on stub shaft 32 which is screwed into base 2. Shaft 32 carries a single direction needle roller bearing 34 over which the pinion 30 is a push fit. Two rotations of gear wheel 26 suffice to wind it on thread 24 into engagement with teeth 22. Reversal of the motor direction to send the winch into drop mode is fast because the roller bearing prevents the pinion rotating and teeth disengagement is accordingly rapid. When the winch is in wind mode the ratchet wheels are tightly engaged because the gear wheel 26 is driven into position in Figures 1 and 2. When the motor stops the anchor is onboard and stowed. When the operator wants to deploy the anchor, the motor is run in reverse. The retarding force moves the gear wheel 26 to the disengaged position in Figures 1 and 2 separating the ratchet wheels. As soon as the anchor is overboard, the anchor drops and its mass spins the winch drum.
When the motor begins to drive the winch, the gear wheel 26 moves to the engaged position and winding commences.
Throughout the specification and claims the word "comprise" and its derivatives are intended to have an inclusive rather than exclusive meaning unless the contrary is expressly stated or the context requires otherwise. That is, the word "comprise" and its derivatives will be taken to indicate the inclusion of not only the listed components, steps or features that it directly references, but also other components, steps or features not specifically listed, unless the contrary is expressly stated or the context requires otherwise.
In the present specification, terms such as "apparatus", "means", "device" and "member" may refer to singular or plural items and are terms intended to refer to a set of properties, functions or characteristics performed by one or more items or components having one or more parts. It is envisaged that where an "apparatus", "means", "device" or "member" or similar term is described as being a unitary object, then a functionally equivalent object having multiple components is considered to fall within the scope of the term, and similarly, where an
"apparatus", "assembly", "means", "device" or "member" is described as having multiple components, a functionally equivalent but unitary object is also considered to fall within the scope of the term, unless the contrary is expressly stated or the context requires otherwise.
Orientational terms used in the specification and claims such as vertical, horizontal, top, bottom, upper and lower are to be interpreted as relational and are based on the premise that the component, item, article, apparatus, device or instrument will usually be considered in a particular orientation, typically with the drum 14 uppermost.
It will be appreciated by those skilled in the art that many modifications and variations may be made to the methods of the invention described herein without departing from the spirit and o scope of the invention.
The illustrations, photographs and drawings, if any, form part of the disclosure of this specification as does the description, illustrations, photographs and drawings of any associated provisional or parent specification or of any priority document, if any, all of which are imported hereinto as part of the record hereof.
Finally it is to be understood that various alterations, modifications and/or additions may be incorporated into the various constructions and arrangements or parts without departing from the spirit and ambit of the invention.
Claims (12)
1. A winch having dual mode operation in which, in raise mode, a winch drum winds and, in a drop mode, the winch drum is free to rotate, wherein:
a drive shaft has a drive wheel beside the winch drum operable to connect and disconnect a drive to the winch drum;
a complementary ratchet toothed drive wheel is connected to the drive wheel;
axial movement of the drive wheel in one direction operatively connects to the winch drum to the complementary ratchet toothed drive wheel;
axial movement of the drive wheel in a reverse direction operatively disconnects the complementary ratchet toothed drive wheel and the winch drum; and
the drive wheel is fixed to the complementary ratchet toothed drive wheel and a drum drive wheel is fixed to a drum ratchet toothed drive wheel, the complementary ratchet toothed drive wheel and the drum ratchet toothed drive wheel each having respective teeth adapted to inter-engage.
2. The winch of claim 1, wherein the complementary ratchet toothed drive wheel forms part of a clutch which further includes the drum drive wheel fixed relative to the winch drum.
3. The winch of claim 1 or 2, wherein the drive wheel is fixed to the complementary ratchet toothed drive wheel and the drum drive wheel is fixed to the drum ratchet toothed drive wheel, the complementary ratchet toothed drive wheel and the drum ratchet toothed drive wheel each having respective teeth adapted to inter-engage whereby to operate in the manner of a dog clutch.
4. The winch of any one of claims 1- 3, wherein the drive shaft has a threaded portion, and a bore of the drive wheel has a complementary thread.
5. The winch of any one of claims 1- 4, wherein the drive wheel connects with a retarding means.
6. The winch of claim 5, wherein retardation of the drive wheel by the retarding means causes the drive wheel to move axially according to the direction of rotation of the drive shaft.
7. The winch of any one of claims 2 - 6, wherein in drive mode the drive wheel is closer to the winch drum than in the drop mode, such that the teeth of the complementary ratchet toothed drive wheel and the drum ratchet toothed drive wheel are adapted to engage, whereby to cause the winch drum to wind.
o 8. The winch of any one of claims 2 - 7, wherein in drop mode, the drive wheel is further away from the winch drum than in the drive mode, such that the teeth of the complementary ratchet toothed wheel and the drum ratchet toothed drive wheel are disengaged, whereby the winch drum is adapted to remain still or to unwind.
9. The winch of any one of claims 5- 8, wherein the retarding means is in the form of a brake.
10. The winch of claim 9, wherein the drive wheel is in the form of a gear wheel, the retarding means includes a pinion which is adapted to mesh with the drive wheel, the resulting friction being sufficient to cause the drive wheel to move axially toward the winch drum.
11. The winch of any one of claims 5 - 10, wherein the retarding means includes a threaded coaxially aligned central bolt and the freedom of the pinion to rotate is controlled by the bolt and the bolt is unidirectional in that it is adapted to reciprocate along a linear pathway.
12. The winch of claim 10 or 11, wherein a longitudinal axis of the retarding means is oriented parallel to the rotational axis of the drive shaft and an outer cylindrical wall of the pinion is adapted to mesh with an outer periphery of the drive wheel.
EDITORIAL NOTE
2015203393
- There are 2 pages of Drawings that are not page numbered
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2015203393A AU2015203393B2 (en) | 2014-06-20 | 2015-06-19 | Anchor Winch |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014902361 | 2014-06-20 | ||
| AU2014902361A AU2014902361A0 (en) | 2014-06-20 | Anchor Winch | |
| AU2015203393A AU2015203393B2 (en) | 2014-06-20 | 2015-06-19 | Anchor Winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2015203393A1 AU2015203393A1 (en) | 2016-01-21 |
| AU2015203393B2 true AU2015203393B2 (en) | 2021-03-04 |
Family
ID=55080507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2015203393A Active AU2015203393B2 (en) | 2014-06-20 | 2015-06-19 | Anchor Winch |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2015203393B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004780A (en) * | 1975-09-23 | 1977-01-25 | Warn Industries, Inc. | Winch |
| US4191284A (en) * | 1976-04-15 | 1980-03-04 | King Gerald D | Clutch with fluid actuator |
| GB2041317A (en) * | 1979-01-17 | 1980-09-10 | Taiyo Sengu Co Ltd | Anchor winch |
| US4489919A (en) * | 1983-03-21 | 1984-12-25 | Meyer Ostrobrod | Safety winch with disengageable drive |
| AU2007202070B1 (en) * | 2007-03-09 | 2007-12-13 | Harry Xydias | An improved winch assembly |
-
2015
- 2015-06-19 AU AU2015203393A patent/AU2015203393B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004780A (en) * | 1975-09-23 | 1977-01-25 | Warn Industries, Inc. | Winch |
| US4191284A (en) * | 1976-04-15 | 1980-03-04 | King Gerald D | Clutch with fluid actuator |
| GB2041317A (en) * | 1979-01-17 | 1980-09-10 | Taiyo Sengu Co Ltd | Anchor winch |
| US4489919A (en) * | 1983-03-21 | 1984-12-25 | Meyer Ostrobrod | Safety winch with disengageable drive |
| AU2007202070B1 (en) * | 2007-03-09 | 2007-12-13 | Harry Xydias | An improved winch assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2015203393A1 (en) | 2016-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2369668A1 (en) | Personal lift device | |
| CN101855601B (en) | Mechanical watch having constant spring force | |
| CN102942135A (en) | Rope storage barrel structure of winch wire rope | |
| CN203255901U (en) | Heavy article lifting, collecting and releasing device | |
| MX2017012745A (en) | Auto-engaging winch clutches, and associated systems and methods. | |
| CN105480411A (en) | Aircraft undercarriage | |
| US11254549B2 (en) | Hoist translating drum with bar spline bearing | |
| AU2015203393B2 (en) | Anchor Winch | |
| CN201901551U (en) | Hand-operated hoisting machine | |
| CN107651094A (en) | In put the separator of falling brake and electric bicycle of electric bicycle | |
| CN102408076B (en) | Winch device for lifting rescue boat | |
| CN102501838B (en) | Device for switching false urgent accelerator operation into emergency braking during emergency state of vehicle | |
| EP2853345A3 (en) | Grinders with friction drives | |
| CN106059184B (en) | motor with brake | |
| USRE33898E (en) | Free fall windlass | |
| CN202857343U (en) | Clutch gearing of self-driven type grass cutter | |
| CN103948290A (en) | Curtain driving device and driving method using same | |
| NZ224384A (en) | Power operated windlass; motor rotation in one direction frees windlass | |
| CN207875926U (en) | Capsizing moment windlass | |
| CN102344099B (en) | Well logging winch and braking device thereof | |
| US9993667B2 (en) | Descent control device | |
| CN103223511B (en) | Cutter head feeding and retraction transmission control mechanism of emergency rescue fast anti-explosion tapping equipment | |
| CN103148115A (en) | Technical scheme for automatic clutch of motor vehicle | |
| CN204417005U (en) | A kind of brake clutch device of Lever Blocks | |
| WO2012005538A3 (en) | Retractor for a seat belt, and clutch used in same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO GAIN ACCEPTANCE HAS BEEN EXTENDED TO 11 DEC 2020 |
|
| MK5 | Application lapsed section 142(2)(e) - patent request and compl. specification not accepted | ||
| NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO GAIN ACCEPTANCE HAS BEEN EXTENDED TO 11 FEB 2021 |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired | ||
| NA | Applications received for extensions of time, section 223 |
Free format text: AN APPLICATION TO EXTEND THE TIME FROM 19 JUN 2024 TO 19 JAN 2025 IN WHICH TO PAY A RENEWAL FEE HAS BEEN FILED |
|
| NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO PAY A RENEWAL FEE HAS BEEN EXTENDED TO 19 JAN 2025 |