DE8225024U1 - Sails with a float - Google Patents

Description

Patent attorney
Dr. Detlev AW Rust

Dlplom physician Dr. Walter Weber Munich, 07/18/85 Hamburg Il / ch 2050

Sails with float 5

The invention relates to a sail with a float for sailing vehicles.

Small, open sailing vehicles for sport and leisure can capsize as a result of operating errors or strong winds. Here, the mast carrying a sail is horizontal on the water surface. There is also the possibility that a sailing vehicle overturns. This is where it lies Vehicle with its underside up and the mast with sail is perpendicular to the bottom of the water directed.

The buoyancy of the watercraft is with these Events usually ensured by means of buoyancy in the fuselage. These are air or plastic Filled, watertight rooms with a low specific weight. Buoyancy means also releasably connected to the fuselage are used.

In multihulls (catamarans) is often used for prevention A float is attached near the top of the mast to avoid the risk of capsizing. This prevents not capsizing, but overturning; a capsized one Catamaran is namely only with substantial Effort and experience to straighten up again in the event of considerable danger for the sailors.

In the past few years, so-called sailing boards,

also known as windsurfers or surfboards, found widespread. This is on a boat hull of a board-like shape, an unstayed mast with a sail, usually fastened with a joint (mast bracket) appropriate. The joint (mast bracket) keeps the vertical mast in an unstable equilibrium and gives in turn, the mast has freedom of movement in all directions of the room. The sail itself is through one Both surfaces of the sail encompassing the boom, which runs in the rest position, held, which in turn about is attached to the mast at head height of the sailor.

To sail, the sailor stands on the hull and grasps it on the side of the sail facing him located section of the boom with both hands. Maneuvering is done by moving the boom - mast-sail unit around the longitudinal axis of the mast or in a direction out of the vertical.

Capsizing is not unusual when sailing with windsurfers. This differs from capsizing of conventional sailing vessels, however, that the hull remains in its normal position, only the mast - boom - sail unit horizontally lies on the water. This position is anyway the usual starting position for the use of a windsurfer. at

In this position of the sail it is almost always the case that water enters the bulbous sail from the sides flows in. To start with the windsurfer, dent now puts a rope on the hull of the boat (Rope), which is attached to the front of the fork tree. By pulling the arm strength and shifting your weight, the mast is now raised with this rope (starting sheet) the vertical erected. During this process, the water lying on the sail must also run off be moved over the lower edge of the sail (foot), which requires considerable effort.

Inexperienced or less powerful people in particular tire quickly during these starting processes, which on the one hand is a Increased safety risk in unfavorable weather means, on the other hand, the joy of this healthy Leisure activity can easily pass.

ü ^The present invention is based on the knowledge

that the erection of a capsized sailing vehicle, in particular of the sail of windsurfer facilitated must be ^10, and the further recognition that the upward

f straighten something lying horizontally on the water surface-

,; the sail, because of its bulge with water

f is flooded, made much more difficult by this circumstance

f will.

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According to the invention it is therefore proposed to provide the sail with a pillow-shaped buoyancy body.

Ϊ A through a pillow-shaped float

i ^; ! ²⁰ sails held floating on the surface of the water; only flooded with insignificant amounts of water;

even with swell the sail is at most moistened.

The sail is made by this circumstance and by the filling

the float with air, which can also be replaced by another gas, is much easier to rivet

be.

The solution according to the invention is a considerable

ft 'ease of use as well as an essential

Risk reduction achieved. Overturning is safely avoided.

For beginners or less strong people, there are usually no great demands on the quality the sail aerodynamics. With this group of people it comes first to learn the technology and the ease of use of the sail. A possible impairment of the aerodynamic properties of a sail by using inventive,

cushion-shaped floats can be found on this person ski be accepted.

According to a preferred embodiment of the invention several buoyancy bodies are provided on a sail, which are arranged so that the sail is as uniform as possible floats flat on the surface of the water. This is a favorable adaptation to species-appropriate peculiarities of the sail such as viewing windows, leeches and battens etc. possible.

In a further advantageous embodiment of the Invention, the buoyancy body is connected to the sail. This allows the greatest possible buoyancy mass with little impact on the aerodynamic properties of the sail.

In a further preferred embodiment of the invention a float can be releasably attached to the sail.

This is particularly important to groups of people with different Thinking about strengths and abilities, for example families with children. All you have to do is purchase one Sails, according to the ability of the individual family members with different sized buoyancy bodies can be equipped on the sail areas. So-called Velcro tape is thought of here. The following applies accordingly this proposal for more and more popular surf schools.

In a further preferred embodiment, the buoyancy body has two layers and is connected in a gas-tight manner Edges and is provided with a gas filling and shut-off device. This means that the sail can be folded up as usual and transportable and will only be used for the intended purpose

Use filled with gas. In an embodiment of the invention

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can use a stopper valve as a shut-off device like it is common in so-called air mattresses. Also valves for bicycle tires or car tires can be provided. In this order, the cost of filling increases, but so does operational reliability .

In further preferred embodiments of the invention the buoyancy body consists of a suitable watertight or watertight encased foam. As With sea life-saving equipment, so-called life jackets, a special operational safety is achieved here, because a punctual leak will not lead to a general inoperability.

According to a further advantageous embodiment of the invention, the sail has a recess, the Edges with fastening elements are provided, and on the outer edges of the float there are corresponding ones

Fasteners provided. The float

the size of the recess can thus be inserted into the recess. Optionally, however, the float can also be replaced by a piece of canvas of the appropriate size and thus a sail of the conventional type getting produced. This embodiment thus represents a sail that can be used with or without a float.

In a further advantageous embodiment ds ^; The invention provides cross-connecting ribs that run perpendicular to the surface of the sail and are attached to the inside of the sides of the float to limit the transverse expansion. With air filling it can be achieved that a flatter, less bulbous shape of the float arises. This improves the aerodynamic properties.

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According to a further advantageous embodiment of the Invention are stiffening devices on the sides of the float provided, something like so-called sail battens, as a result of the increased dimensional stability to improve the aerodynamic properties of the float.

According to a further advantageous embodiment of the invention, they are inside on the sides of the float Adhesive is provided for adapting the inner surfaces without gas filling the float, so can for more experienced People then the air or gas will be deflated from the float and through the adhesive is reached that the inner surfaces of the buoyancy body lie against one another, whereby a conventional sail shape is achieved will. Suitable adhesives are, for example, Velcro tape (• the magnetic adhesive.

The invention is illustrated below with reference to the drawings Exemplary embodiments explained in more detail, from which further features and advantages result. It demonstrate:

1 shows a windsurfer with details necessary for a general understanding of the invention in

a schematic side view;

Fig. 2 A first preferred embodiment of the invention with a double-walled buoyancy body integrated into the sail, which can be filled with gas

is;

FIGS. 3 to 7 show further preferred embodiments

the invention.
35

In Fig. 1, a designated by the reference numeral 1 is Windsurf board shown with one facing down

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protruding, movable sword 2 and a rear attached fin 3 is provided for stabilization. A mast 5 is detachable in a movable mast holder 4 held. A boom 7 is attached to the mast by means of a bracket or a tampon. A sail 8 has a lower edge (leech), a trailing edge (leech) and a leading edge (luff). That The luff is sewn in a tubular double-walled manner and is pulled over the mast. There is a transparent one in the sail 10 viewing windows made of a transparent film attached. A

\ ·. float according to the invention is schematically shown

•• _; the reference number 12 denotes.

f During take-off and after capsizing, the sail mast

\ 15 Boom unit from its horizontal position on the j. Water surface by means of a tamp (starting sheet)

; t "13, which is attached to the front of the boom, into the vertical

% (related to the mast and the sail) brought. this

\ happens by pulling hard on the person standing on the board

; 20 operator at the uphaul and Gewichtsver- I storage.

ΐ In the starting situation, the surfboard lies as intended in the water, and the mast with sail and boom 25 lies on the surface of the water. There mast and boom

are designed as hollow bodies, they float on the

': Water surface. The one clamped in the devices

j Depending on the trim, the sail hangs even when it is optimally tensioned

through and is mostly under the water above-30 area. In swell, this situation is reached immediately after capsizing. When starting the operating

f person by slow, extraordinarily powerful pull

on the start sheet, on the one hand, the weight of the mast-sail- (5 Boom unit against the tail wind in the vertical

: Bring 35 and also drain the water from the sail arrange over the leech.

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The float according to the invention prevents the Water flows into the lying sail and makes it much easier to straighten it. For example, if it is filled with a mixture of air and gas with specific

lighter than air (e.g. helium) can even ψ.

a complete falling of the mast-sail-boom unit can be prevented.

FIG. 2 shows a windsurf board with an embodiment of a float according to the invention in a side view.

Figure 2a shows the horizontal section of the sail and mast with the integrated buoyancy. 15th

FIG. 3 shows a buoyancy body 12 integrated into the sail, which by means of suitable measures such as gluing, Welding or fusing at its edges 15, 16, 17, inseparably water- and gas-tight with the sail connected is. The buoyancy body 12 is via a hose-like device, denoted schematically by 18 filled with gas and closed by means of a plug 19, the buoyancy body is also via this mechanism to empty again. Instead of a hose device and a stopper, a valve can be used, such as it is common in bicycle or automobile tires.

Another embodiment of the invention is shown in FIG. In a recess 22 in the sail B drawn too large for the purpose of illustration, a buoyancy body 12 is inserted, the extent of which is approximately as large as the recess 22 or even overlaps at the edges. By means of eyelets or press studs 23, 23a, 23b arranged in the edges 14, 20, 21 of the float 12 and correspondingly on the edges of the

Recess in the sail arranged eyelets or press studs 24,24a, 24b is the buoyancy body 12 in the sail 8 or its recess 22 inserted. The buoyancy body can be a gas-filled cushion or contain a flotation device such as buoyant foam or plastic.

In Figure 5 is a further embodiment of the invention shown, in which, in addition to a buoyancy body 12, further buoyancy bodies 12a, 12b are provided. In this way, a lift compensation is achieved, for example with respect to the viewing window 11.

FIG. 6 shows a section along the line 1 - I in FIG. In the case of the one shown in FIG Embodiment are the two side surfaces of one Gas-filled float inside each connecting cross members 27,28,29 shown. This allows the Width extension or thickness shown in FIG. 6a

b in the previously described embodiments of an a

gas-filled float to a thickness b. as shown in Figure 6b. The float is therefore less bulky, thereby reducing the aerodynamic properties of the one according to the invention Buoyancy body 12 provided sail can be improved.

In the embodiment shown in Figure 7 one Buoyancy body 12, this is shown unfolded in its two sides 37,38 (37,38). In accordance with the use The front ones, the mast, are in the state of the art facing edges 30,31 as well as the lower edges 32,33 to lie on top of one another. In the side faces of the Buoyancy body 12 are used to increase the dimensional stability

Stiffening elements inserted, whereby the aerödyna-

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mix properties of such a float can be improved. This embodiment is both Can be used with gas and plastic-filled variants. Examples are shown in FIG. 7 on the one hand Page 37 attached three battens - similar stiffening elements 34,35,36 and on the opposite side 38 symmetrical arranged stiffening elements 34a, 35a, 36a shown,

Instead of the stiffening elements or in addition to them

can on the inner surfaces 37,38 correspondingly opposite symmetrically arranged adhesive such as Velcro tape or Magnetic adhesive may be provided, whereby the gas-filled buoyancy body 12 after releasing the gas by pressing (or laying) the adhesives together what is achieved is that the insides of the float lie against each other and this becomes so flat that it becomes adapts to the course of the canvas. In this situation the float is inoperable and that with it Floating sails are like a conventional one

Sails for advanced sailors, for example

use. By blowing gas back in, if necessary by pulling the side surfaces 37, 38 apart, the buoyant body 12 can be filled again. This process can be carried out with the help of a compressor bottle even after an advanced sailor is tired at high gee (Can as with breakdown assistance for automobile tires), which can be carried with you without any problems.

The embodiments described above based on of a windsurfer, of course, apply mutatis mutandis to other sailing vehicles, especially to children's veils (e.g. optimists) or novice sailboats,

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Claims (12)

£ Sails with floats> 5 protection claims 1. Sails,
characterized by a pillow-shaped float (12). 2. Sail according to claim 1, characterized in that further buoyancy bodies (12a, 12b) are provided are. 3. Segdl mch claim 1 or 2, characterized in that the buoyancy body (12) with the sail (8) connected is. 4. Sail according to claim 1 or 2, characterized in that the buoyancy body (12) is releasably attached to the sail (8) can be fastened. 5. Sail according to claim 1 or one of the following claims, characterized in that the buoyancy body (12) is double-layered, gas-tight having connected edges (15, 16, 17) and with a gas filling and shut-off device (18, 19) is provided. • I · 6. Sail according to claim 5, characterized in that that the gas filling and shut-off device has a valve (19). 5 7. Sail according to claim 1, 2, 3 or 4, characterized in that that the float (12) consists of a waterproof plastic. 10 8. Sail according to claim 1, 2, 3 or 4, $ characterized in that § that the float (12) consists of a waterproof £ encased plastic. I 15 j 9. Sail according to claim 4 or one of the following f Expectations, I characterized by [ that the sail (8) has a recess (22), r 20 their edges with fastening elements (24a, 24b) I are provided, and that on the outer edges (14, 20, . \ 21) of the float (12) corresponding > '; Fastening elements (23, 23a, 23b) are provided ) are. ; 25th , 10. Sail according to claim 5 or 6, Ί characterized by £ that perpendicular to the surface of the sail (8), Cross-connecting ribs attached to the inside of the sides (-37, 38) of the buoyancy body (12) p (27, 28, 29) to limit the transverse extent (b.) are provided. * · Mil It ■ (· t 4 * t I * t 11. Sail according to claim 1 or one of the following claims, characterized, that on the sides (37, 38) of the float (12) stiffening devices (34, 34a, 35, 35a, 36, 36a) are provided. 12. Sail according to claim 5 or one of the following claims, characterized, that inside on the sides (37, 38) of the float (12) adhesive for adapting the inner surfaces are provided without gas filling the float (12). • · * * · ψψφψ