hows such a mast 12a, with a bas

2 shows such a mast 12a, with a base mast section 14a1 and three telescopic mast sections 14a1 14a4 pinned, respectively, by use of pins 151-153, to the adjacent mast section therebeneath, which the user manually inserts through corresponding holes in the mast sections. FIG. This is a difficult task requiring above average skill. 2, the base section of any mast 12 according to the invention typically has a foot 13 to which the base section is attached. 7 is spring-biased to remain closed and thereby retain the sail via the grommet 30 as shown in FIG. KEY ADVANTAGES 11, when the mast is collapsed, the connector 43 collapses with the mast rings, and the guy cables 40 and 41 become slackened, along with the sail. Objects, features and advantages of the invention will be readily understood upon consideration of the following detailed description taken in conjunction with the accompanying drawings. No stays needed. Mast open, mast closed, waterproof box flooded. The bearing material may be applied to the surface 25a as a coating or attached thereto as a preform by use of inset fasteners or adhesives. Clear carbon look glossy or matt, or painted in a RAL or custom colour. For example, where the sailboat is formed of fiberglass, the foot 13 may be fastened to a flat metal plate originally embedded in the fiberglass or glassed in later. 750kg with AISI 316 stainless steel housing and actuator. With push-button deployment, the telescopic light mast is easy to extend or retract. AMS designs each telescopic mast tailored to the yacht dimensions, features and needs. The mast 12 has a fixed base section 141 and one or more telescopic sections 14n (the minimum value of n being 2) supported by the base section. 8 is an isometric view of the mast ring of FIG. Lights height from deck Aluminum or stainless steel are some examples of preferred metal materials, and plastic materials could be used. For powering the collapsible mast, a hydraulic fluid pump may be provided. 4 shows a typical mast ring 24 according to the invention, for attaching a sail 28 to the mast 12, and FIG. The present invention relates to collapsible mast and rigging for a sailboat. AMS mast can withstand any weather condition without stays thanks to an internal stiffening system. sailboat spinnaker tangone telescopic telescopico All rights reserved. 1, for the purpose of maximally collapsing the sail 28, to facilitate wrapping it in a shroud for road transport. Alternatively, it could be supported at an intermediate position by use of another cable supported by the connector 42, analogous to the cable 50. Click here for fast response from your local sales representative. 1, a connector 42 for guy cables 40 is preferably provided at the top-most telescopic section 14n for anchoring the mast against bending forces in the standard manner; and a connector 43 for guy cables 41 is provided at about half-mast. Carbon fibre stages Designed to withstand, without stays, any sea condition the yacht is designed for. For use as a mast and rigging for a sailboat, a collapsible mast is provided having a base section and one or more telescopic sections, along with a plurality of mast rings.

fibra carbono veleros carbonio rotondo veleiro nauticexpo Hydraulic telescopic poles which can secure tenders up to 10 tonnes. Hydraulically actuated. In a small sailboat, such as where the mast may be about 20 feet or less in length when fully extended, the mast will generally be light enough that it can be raised, section by section, by hand, even considering the weight of the sail and the tension of the rigging. Many alternative configurations of the cable guide could be used. They are composed by three carbon fibre stages and, when not in use, they can be fully retracted into a compact, watertight housing, disappearing into the deck for flush use on a helideck or aesthetic reasons. From the waterproof box, installed on the mast bottom, through a sealed cable transit device, ready to be connected to the on-board supply. If required, the switchboard can be provided with a configuration for a 24Vdc auxiliary power supply (e.g. Thus the interior surface 25a of the ring-shaped portion 25 is provided with a lubricious, relatively soft bearing material 27 (i.e., as compared to the material of the mast section), such as PTFE (aka TEFLON) or acetyl resin (aka DELRIN). For reasons to be discussed below, the mast ring 24 is loosely fitted to a mast section so that the mast ring can rotate about the mast section, and so that it can slide up and down on the mast section. You'll find answers to the frequently asked questions as well as basic rules. A latch 27 of a sail-attachment portion 26a as shown in FIG. Preferably, there are a plurality of mast rings, each mast ring has a sail attachment portion for attaching the mast ring to the sail of the sailboat, and a ring-shaped portion for fitting around a selected one of the telescopic sections and, thus fitted, sliding on the outer surface thereof, and each mast ring has a circularly shaped portion for fitting around the cylindrically shaped exterior surface of the selected telescopic section. & Terms of Use. 2004-2022 FreePatentsOnline.com. We produce carbon fiber masts, installed flush with the bridge inside a waterproof housing and integrated into the structure. No stays needed. No. Both features are pretty innovative and under patent approval. The foot 13 is preferably formed of a strong corrosion resistant metal, such as stainless steel or aluminum, and where the mast is also formed of metal, the foot 13 is preferably formed of the same metal to avoid creating a galvanic potential. The terms and expressions which have been employed in the foregoing specification are used therein as terms of description and not of limitation, and there is no intention in the use of such terms and expressions to exclude equivalents of the features shown and described or portions thereof, it being recognized that the scope of the invention is defined and limited only by the claims which follow. Preferably, respective interior surfaces of the circularly shaped portions of the mast rings each have a polymeric bearing material for making contact with the selected telescopic section. Operating voltage: 400Vac, 50Hz. To advertise, take a look at WoodenBoat Advertising, or use your Google Adwords account if you want to advertise on the Forum. We have the experience and expertise to create bespoke equipment solutions. Each AMS telescopic light mast is completely designed and tailored to meet the customer's requirements. FIG. If this is your first visit, be sure to 9 and 10 show the mast 12 in the fully extended configuration so as to highlight a rotational control feature of the invention. Finally, FIG. The trunk portion also pivots about an axle so that the mast is lowered as a result of being brought more nearly in alignment with the deck of the sailboat at the same time that it is collapsing in length. 5, the grommets 30 provide through-holes to be captured between tabs 32 (32a, 32b) of the sail-attachment portion 26 of the mast ring 24 that, preferably, have corresponding holes so that a bolt 33 and lock-nut 34 can be used to fasten the sail to the mast ring. FIG. No catalogs are available for this product. Various lighting configurations are available, including Lopolight and Aqua Signal. The foot 13 is shown as a flat plate for mounting to a flat, level surface, but it should be understood that the foot 13 could have any configuration or orientation appropriate for anchoring the mast to the sailboat. FIG. 1. Forum posts represent the experience, opinion, and view of individual users. Hydraulic with a programmable logic controller, Clear coat carbon fibre or yacht colour scheme, Filament-wound carbon fibre tubes and 316 stainless steel components. FIG. 11 also shows an optional upward adjustment of the boom 44 relative to its position in FIG. 5 is an isometric view of one of the mast rings of FIG. In the last vido it compares to a normal laser. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. The mast ring has a ring-shaped portion 25 for surrounding the mast section, and a sail-attachment portion 26 for attaching to the sail. The mast sections are preferably formed of a corrosion resistant material. *Prices are pre-tax. 1. The use of carbon fiber makes them light, with a modern and pleasant design. To get WoodenBoat delivered to your door or computer, mobile device of choice, etc, click WB Subscriptions. However, the mast rings could be secured more tightly to the mast sections so that they would be able to support the sail if desired. Preferably, the telescopic sections have cylindrically shaped exterior surfaces, and each mast ring has a circularly shaped portion for fitting around the cylindrically shaped exterior surface of the selected telescopic section. Preferably in addition, the cavities are capable of being in fluid communication with the holding tank by operation of a valve. 7 and 8 show an alternative mast ring 24a and its manner of attachment to the sail 28. 4 is an isometric view of one of the mast rings of FIG. With reference to FIG. FIG. As will be readily appreciated, it is not essential that the entire interior surface area 25a be covered by bearing material. IP55 electric switchboard for local operation provided with programmable logic controller and configured for remote operation from the wheelhouse or other location. An unstayed fully retractable design gives you more positioning options, making it a feature that complements your yachts lines. However, many alternative mounting arrangements can be used. Stages anti-rotational system installed inside the mast to prevent stages rotation, hence lights rotation. In a small sailboat that is about 14 feet in length, the mast is about 20 feet in height when fully extended; but the sailboat may be of any size, and the mast may be of any height. 1. The extended configuration may be maintained by closing a valve 21 between the outlet of the pump and the entry port 201.

FIG. It is to be understood that this summary is provided as a means of generally determining what follows in the drawings and detailed description and is not intended to limit the scope of the invention. The electrical cable is completely hidden inside the system (patent pending). Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates. A hydraulic fluid pump may be used to power the collapsible mast. 1. The connector 42 may be rigidly attached at the top of the top-most telescopic section 14an, but the connector 43 has a ring-shaped portion like the that of the mast rings 24, so that it can be attached to its mast section in like manner and therefore so that it can slide on the mast section the same as a mast ring. It is to be understood that, while a specific collapsible mast and rigging for a sailboat has been shown and described as preferred, other configurations could be utilized, in addition to those already mentioned, without departing from the principles of the invention.

1 with the mast in a collapsed configuration. Selling/self promotion postings are verboten on the Forum. Pre preg epoxy carbon fibre. Go to the Advanced Mechanical Solutions website for more information, See all of Advanced Mechanical Solutionss catalogs, See all Advanced Mechanical Solutions products. Multiflex RR 181 cable. A ring-shaped portion 25a may be formed of steel rod that is dipped in a lubricious coating material. The Forum is a free service, and much like the "free" content on Public Radio, we hope you will support WoodenBoat by subscribing to this fabulous magazine. As is standard practice in the art of hydraulics, the exterior surfaces of the telescopic sections are cylindrical, as are the interior surfaces of the base section and each of the telescopic sections that supports another telescopic section; that is, all sliding surfaces are cylindrical. 9. from the on-board batteries) in order to keep the mast status signals active when the yacht is laid up. before you can post: click the red register link or the register tab, above, right. 11 shows a sail support cable 50 attached to the connector 42 at 46 and to the sail 28 at 48, to support the sail and allow it to pivot about the mast, as the mast rings are preferably loosely fitted enough to the mast sections that they will not be able to provide this support. Referring back to FIG. The simple interface with its computer controlled hydraulic system allows for easy installation and maintenance. Preferably, mineral oil is used as the hydraulic fluid so that leakage poses minimal risk of environmental harm; however, any non-compressible, lubricious fluid may be used as the hydraulic fluid. The telescoping portion can be raised sufficiently by pulling on a flexible line or cable to unseat a spring-biased fork that supports the telescoping portion in a raised position, allowing the telescoping portion to be lowered under its own weight into the trunk portion. Waterproof housing One problem with the rigging proposed in the '354 patent is that the sail remains extended in the lowered position and so remains capable of being blown about when that is not desired. A cable guide which may be in the form of a pair of spaced apart, vertically oriented tabs 36 is preferably provided at or near the top of each of the mast sections, for guiding therebetween a cable 37 that extends from the top of the top-most mast section (here 144) down to a winch 40, which may be located at the bottom of the base section 141, or which may be located remote from the mast by use of a suitably provided pulley system. Privacy Policy Compact and concealed storage means it is flush to the deck when retracted, which frees up valuable space when the light mast isnt needed. FIG. FIG. The cable is tightened when the mast is fully extended and prevents the mast sections from rotating azimuthally relative to each other. but basic study on telescopic masts is now completed it say's.. http://au.groups.yahoo.com/group/harryproa/photos/album/1947136348/pic/list?order=ordinal, http://au.groups.yahoo.com/group/harryproa/?yguid=312404726, (You must log in or sign up to reply here.). 3, for example. No cable winder. Preferably, the base section and at least one of the telescopic sections have associated cable guides depending therefrom at a predetermined azimuth, the rigging further comprising a cable adapted for passage through the cable guides to substantially prevent relative azimuthal rotation of the base section and the at least one telescopic section. 3, in a larger sailboat where manual raising of the mast is not desirable or practical, the telescopic sections are preferably raised to adopt an extended configuration of the mast 12 according to the invention by pressurized hydraulic fluid (not shown). AMS telescopic lightmast Suitable for any yacht up to 100m LOA. Quickly deployed at the touch of a button, they extend to a height of up to 10 metres. Control system Each mast ring has a sail attachment portion for attaching the mast ring to the sail of the sailboat, and a ring-shaped portion for fitting around a selected one of the telescopic sections and, thus fitted, sliding on the outer surface thereof. The top-most mast section, here 144, is preferably hollow as shown to minimize weight, but this is not essential. Discussion in 'Sailboats' started by yipster, Apr 25, 2012. When closed, the mast remains completely hidden under the level of the bridge, while when open it can withstand any weather condition without the use of stays. Preferably, the mast sections are cylindrical in shape, to allow for the rotation of a mast ring structure as discussed below, and preferably they are also hollow, to minimize weight. Telescopic masts are supplied as ready-to-use products, with an electrical panel and a hydraulic unit. Flush use on heli-decks FIG. A sailboat is also disclosed having a collapsible mast mounted thereto, the collapsible mast having a base section and one or more telescopic sections, wherein the telescopic sections have cylindrically shaped exterior surfaces. FIG. 9 is front elevation of the mast of FIG. Wellington, Auckland 1060, New Zealand. FIG. Since the base section is mounted to the sailboat, the telescoping sections are thereby likewise constrained to remain at a substantially fixed azimuthal orientation relative to the boat. Among the peculiarities of our masts there is a spring loaded system which stiffens the mast once As one prior art solution to this problem, U.S. Pat. Paint finish As shown in FIG. completely open and the electrical cable, that is completely hidden inside the system, eliminating the external cable winder. Operating system 10 is a side elevation of the mast of FIG. Each mast section is closely toleranced to mate with seals (not shown) incorporated into the mast section into which it is received to prevent leakage of the hydraulic fluid such as might otherwise occur at the interface between the sections 141 and 142 indicated as A in FIG. FIGS. Each AMS telescopic light mast is completely designed and tailored to meet the customers requirements. Weather conditions Status signals reported on wheelhouse The telescopic light masts designed and built by AMS are unique in both functionality and aesthetics to match with a 50m+ luxury yacht exterior design. 1 erected manually into an extended configuration with the use of pins.

The foot 13 may be welded, bolted, or otherwise fastened directly to a suitably strong, metal surface of the sailboat such as the deck or hull, or it may be fastened to plates or brackets attached to the sailboat. The system is totally sealed. FIG. A patent pending stiffening system makes the mast rigid once completely open. 7 showing the sail of the sailboat attached thereto. Boat Design Net does not necessarily endorse nor share the view of each individual post. Referring back to FIG. 39 Vestey Drive, Mt. The integration of both the signal and the anchor lights allow compliant navigation.

Lights orientation Electrically actuated version (patent pending) available on request. Privacy Policy Light version weight (on request) 11 is a side elevation of the mast and mast rings of FIG. It is an object of the present invention to provide for an improved collapsible mast and rigging for a sailboat. generation, <- Previous Patent (Methods and systems ). & Terms of Use. Hand pump for emergency operation included. The electrical cable is completely hidden inside t he system (patent pending). The loose fitting nature of the mast rings allows the telescopic sections to collapse, by allowing the mast rings to become stacked one on top of the other as shown in FIG. For example, the user may first pin the section 14a4 to the section 14a3 with the pin 153; next the user may pin the section 14a3 to the section 14a2 with the pin 152; and finally the user may pin the section 14a2 to the section 14a1 with the pin 151. 6 is side elevation of the sail of FIG. Returning to FIG. 6,000,354 proposes a telescoping mast, having a base or trunk portion supporting a telescoping portion. FIGS. 400kg with Aluminium housing and actuator. 8. Alternatively, as noted previously, it may be desirable to fit the base section into the keel, and as will be readily appreciated by persons of ordinary mechanical skill, there are many ways this could be done. The pump has an inlet and an outlet, and preferably a fluid holding tank is provided in fluid communication with the inlet. AMS hydraulically operated light masts quickly deploy or retreat at the touch of a button. The hydraulic fluid is initially stored in a fluid holding tank 16, and is pumped into respective interior cavities 18n of all but the top-most section, through corresponding fluid entry ports 20n therein, by a hydraulic pump 22 which is typically battery powered. The mast rings collapse until they are stopped by the projecting tabs 36 of the telescopic section to which the mast rings are fitted, and the tabs 36 of the mast section immediately below.

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hows such a mast 12a, with a bas