They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Among the peculiarities of our masts there is a spring loaded system which stiffens the mast once With the mast in its extended configuration, the connector 43 is normally supported by the junction between two adjacent mast sections, e.g., where the connector 43 is fitted around the mast section 143, it is supported by the ledge defined by the larger diameter mast section 142 immediately below. 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. 9 and 10 show the mast 12 in the fully extended configuration so as to highlight a rotational control feature of the invention. Discussion in 'Sailboats' started by yipster, Apr 25, 2012. The electrical cable is completely hidden inside the system (patent pending). telescopic mast radiotronics itself masts Pre preg epoxy carbon fibre. 5 shows the mast ring in place around one of the mast sections 14. FIG. CQuips telescoping two and three stage light masts are the ultimate solution for yachts which are 50 metres or longer. A plurality of mast rings are also provided, each mast ring having 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.
No cable winder. 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. 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. Each AMS telescopic light mast is completely designed and tailored to meet the customer's requirements. 
However, many alternative mounting arrangements can be used. Control system In that case, the base section and the one or more telescopic sections each have internal cavities in fluid communication with each other and with said pump, the cavities being adapted so that fluid pressure therein produced by the pump causes the one or more telescopic sections to telescope apart, thereby causing the collapsible mast to adopt an extended configuration. 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. 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. Many alternative configurations of the cable guide could be used. The simple interface with its computer controlled hydraulic system allows for easy installation and maintenance. Expertly designed for maximum strength with minimum weight for easy handling. You'll find answers to the frequently asked questions as well as basic rules. Clear carbon look glossy or matt, or painted in a RAL or custom colour. 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. AMS mast can withstand any weather condition without stays thanks to an internal stiffening system.
You will need to register 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. Privacy Policy 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. 5 is an isometric view of one of the mast rings of FIG. 6 shows a sail 28 that has been provided with grommets 30 according to the invention.
As will be readily appreciated, it is not essential that the entire interior surface area 25a be covered by bearing material. KEY ADVANTAGES 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. 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. 1, for the purpose of maximally collapsing the sail 28, to facilitate wrapping it in a shroud for road transport. We produce carbon fiber masts, installed flush with the bridge inside a waterproof housing and integrated into the structure. No stays needed. FIG. A ring-shaped portion 25a may be formed of steel rod that is dipped in a lubricious coating material. before you can post: click the red register link or the register tab, above, right. The system is totally sealed. 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. Designed for Cantalupi, Lopolight or any other navigation light. Forum posts represent the experience, opinion, and view of individual users. 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. As shown in FIG. With reference to FIG. Multiflex RR 181 cable. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates. Designed to withstand, without stays, any sea condition the yacht is designed for. 9 is front elevation of the mast of FIG. 1 shows a sailboat 10 with an elongate, collapsible mast 12 according to the invention defining an elongate axis L that is oriented substantially vertically. 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. 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. 1. Telescopic stages material Waterproof housing 6 is side elevation of the sail of FIG. 8. AMS designs each telescopic mast tailored to the yacht dimensions, features and needs.
FIG. If required, the switchboard can be provided with a configuration for a 24Vdc auxiliary power supply (e.g. 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. 4 shows a typical mast ring 24 according to the invention, for attaching a sail 28 to the mast 12, and FIG. block ronstan exit double b060 series custom sailboat story blocks Telescopic masts are supplied as ready-to-use products, with an electrical panel and a hydraulic unit. 7 is spring-biased to remain closed and thereby retain the sail via the grommet 30 as shown in FIG. It is advantageous to use oil as the hydraulic fluid and allow for some leakage, however, so that the sliding surfaces that are exposed to the elements when the mast is in its extended configuration have a light coating of oil to help resist corrosion. From the waterproof box, installed on the mast bottom, through a sealed cable transit device, ready to be connected to the on-board supply. 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. 26ft sailboat s2 1979 tulsa oklahoma If this is your first visit, be sure to Various lighting configurations are available, including Lopolight and Aqua Signal. 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. A collapsible mast is provided having a base section and one or more telescopic sections. 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. 8 is an isometric view of the mast ring of FIG. Hydraulic power pack provided with a 3kW three-phase motor and a 21l/min pump. FIG. A hydraulic fluid pump may be used to power the collapsible mast. A latch 27 of a sail-attachment portion 26a as shown in FIG. To advertise, take a look at WoodenBoat Advertising, or use your Google Adwords account if you want to advertise on the Forum. 1 is an isometric view of a sailboat with a collapsible mast and rigging according to the invention, including a telescopic mast and a plurality of mast rings for connecting a sail to the mast. On the other hand, the loose fitting mast rings allow the sail to rotate about the mast, and this is believed to be desirable to allow the leading edge of the sail to better align itself with the wind-stream than the current methods for mounting a sale to a mast, by which the leading edge of the sail is installed as a tongue into a groove in the mast, allows. FIGS. Flush use on heli-decks Quickly deployed at the touch of a button, they extend to a height of up to 10 metres. The pump has an inlet and an outlet, and preferably a fluid holding tank is provided in fluid communication with the inlet. 39 Vestey Drive, Mt. Wellington, Auckland 1060, New Zealand. Each AMS telescopic light mast is completely designed and tailored to meet the customers requirements. fibra carbono veleros carbonio rotondo veleiro nauticexpo 1. 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. FIG. The mast sections are preferably formed of a corrosion resistant material. FIG. 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). 114/90, 114/108, 114/11, 114/112, 114/113, 114/111, Click for automatic bibliography FIG. 11. It is frequently required to take down the mast of a sailboat, for trailering the sailboat or for passing the sailboat underneath a low bridge. from the on-board batteries) in order to keep the mast status signals active when the yacht is laid up. completely open and the electrical cable, that is completely hidden inside the system, eliminating the external cable winder. 9. 3 is cross-sectional view of the mast of FIG. This is a difficult task requiring above average skill. FIG. FIG. For powering the collapsible mast, a hydraulic fluid pump may be provided. Power supply Weather conditions An unstayed fully retractable design gives you more positioning options, making it a feature that complements your yachts lines. The WoodenBoat Forum is sponsored by WoodenBoat Publications, publisher of WoodenBoat magazine. 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. FIG. A patent pending stiffening system makes the mast rigid once completely open. 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. 750kg with AISI 316 stainless steel housing and actuator. 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 shown attached to a cut-away portion of the mast of 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. 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. Boat Design Net does not necessarily endorse nor share the view of each individual post. 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. 1. 4 is an isometric view of one of the mast rings of FIG. Standard version weight
& Terms of Use. To collapse the telescopic sections and thereby lower the mast, with the pump turned off, a valve 23 which was previously closed is either manually or automatically opened to allow the hydraulic fluid 15 to drain back into the holding tank 16, the fluid being forced out of the cavities 18, by the weight of the telescopic sections. sailboat spinnaker tangone telescopic telescopico 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. 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. As one prior art solution to this problem, U.S. Pat. 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. No stays needed. Smart design features require minimal attachment points to the deck and hull structure allowing flexibility with your configuration and available space. We have the experience and expertise to create bespoke equipment solutions. generation, <- Previous Patent (Methods and systems ). Selling/self promotion postings are verboten on the Forum. Returning to FIG. & Terms of Use. Mast open, mast closed, waterproof box flooded. AMS hydraulically operated light masts quickly deploy or retreat at the touch of a button. Paint finish Suitable for any yacht up to 100m LOA. In the last vido it compares to a normal laser. If the sailboat has a deep keel, it may be desirable to build the non-collapsible base section 141 into the keel to allow for a maximum degree of lowering of the mast. 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. 3, for example. 7 showing the sail of the sailboat attached thereto. 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). *Prices are pre-tax. 1. Electrically actuated version (patent pending) available on request. 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. FIG. 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. 1 erected manually into an extended configuration with the use of pins. No need to register unless you would like to participate, although some images will only show if you are registered/logged-in. Hydraulic with a programmable logic controller, Clear coat carbon fibre or yacht colour scheme, Filament-wound carbon fibre tubes and 316 stainless steel components. Referring back to FIG. Compact and concealed storage means it is flush to the deck when retracted, which frees up valuable space when the light mast isnt needed. 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. Light version weight (on request) Internal stiffening system (patent pending) So it is important that the mast ring 24 not damage the sliding surfaces around which it is fitted. 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. 1 with the mast in a collapsed configuration. 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.
