RU2446978C2 - Air boat (versions) - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention is intended for fishing, hunting, tourism and rescue operation, etc. Proposed air boat represents a polymaran configuration. Proposed air boat comprises four or more long air cylinders and bottom. Said air cylinders front sections are terminated in uplifted taper tips.

EFFECT: ergonomic sitting, smooth run in heaving.

8 cl, 6 dwg

Description

The invention is intended for pleasure, fishing, sports and rescue inflatable boats.

Such boats are known, consisting, as a rule, of a horseshoe-shaped balloon, a rigid transom glued between them and a single-layer or inflatable two-layer bottom. A hard floor inserted between the cylinders is possible (see, for example, AS 608695).

The disadvantage of such boats is not sufficiently comfortable and reliable landing on a low bank (seat) and insufficient buoyancy when fully flooded with a large wave.

This boat is made according to the scheme of a trimaran or polymaran and has three or more longitudinal cylinders ending in front with raised conical tips. A boat of three cylinders (trimaran) can be used for all purposes in a motor, rowing or sailing version. A boat with four or more cylinders is suitable for tourist rafting on mountain rivers and for rescue operations, in particular, on the high seas.

People sit in a boat mainly in the pose of a rider, "riding" an average (medium) balloon, as if on an entertaining "water banana." This pose is quite ergonomic, allows you to sit in the boat for a long time, without getting tired. It allows you to be well fixed in the boat during sharp turns or in strong waves. It is convenient to row with a single-blade or kayak oar. Being in this position, it is convenient to shoot while hunting or throw spinning while fishing. You can also sit on the tank sideways, lowering your legs into the cockpit compartment.

In the trimaran, giving the cylinders a taper, you can simulate the shape of the bottom in cross section, that is, contours. For a soft ride on waves, it is desirable to make the middle balloon increasing towards the nose, and the side balloon decreasing. In this case, the pitching of the bottom to the nose increases.

The rowing or sailing version of the trimaran can have a bagless, that is, completely soft, design. In this case, the cylinders in the front should have endings in the form of upward oriented cones, and at the rear, for example, hemispherical.

For rowing and sailing options, it is advisable to give the cylinders some curvature so that the bottom of the cylinders is convex, the diameter of the cylinders to the stern may decrease. The diameter should be between 400-500 mm.

A bagless option is desirable for stiffness should have an inflatable two-layer bottom.

The motor version of the trimaran should have a hard transom. Side cylinders can be attached to the transom as usual - glued sideways. And the middle (medium) cylinder can be attached to the transom using a rigid or elastic flange. The flange can be formed by an angular profile, with a flange outward or a flange inward. Or it may take the form of a disc with curved edges (the shape of a pan).

If the number of cylinders is odd, then the middle cylinder should have a cone-shaped narrowing to the transom in the upper part for mounting the outboard motor clamps.

Or, on the back of the transom, there is a bracket for mounting an outboard motor.

To ensure rigidity, all the cylinders in the bow (and in the bagless version - and in the stern) can be connected by an arcuate, trapezoidal or angled (for example, 90 °) cylinder. That is, the bow of the boat can have a traditional look.

However, such a nose does not provide a soft ride on the waves. Therefore, the cylinders may have a conical upwardly oriented tip, and all the cylinders are connected at the front of the boat by a transverse beam attached to the cylinders. A special case of timber is a board. It can serve as an additional seat. The board can be attached to the cylinders through lodges in which stainless nuts are embedded. The lodgements are attached to the cylinders, and the board is attached to the lodgements through the holes in it with the help of thumb screws. Or the lodgements are rigidly fixed to the board, and the board is attracted to the cylinders by belts. There are other options for securing the beam to the cylinders.

Or all the cylinders are connected in front of the rod, passing through the cylinders through airtight sleeves. The fastening of the sleeves to the cylinders should be strengthened, since it will experience significant loads. When pumping cylinders, the sleeves compress the rod (for example, a duralumin pipe) and fix it firmly.

There is another option for increasing the overall rigidity of the boat - the boat has floorboards between the cylinders, and all the floorboards are connected by a common rod that passes through the cylinders through hermetic sleeves and to which the floorboards are attached using horseshoe-shaped brackets, or the floorboards are mounted upright to a beam attached to the tanks. Timber fastening is discussed above. The use of flooring is problematic due to the complex profile of the bottom. An inflatable bottom is preferable.

Even if there is one of the options for the mutual attachment of the cylinders, in order to increase rigidity and to obtain a more pointed fore end, the boat has segments of cylindrical cylinders with one conical end facing up and down between the longitudinal cylinders in the bow.

To give the desired shape and to increase their rigidity, the conical tips of the cylinders have straps of constant or variable length on top.

This boat is convenient for accommodating people, it will have a soft ride on waves, increased reliability during the puncture of one of the cylinders, it will maintain sufficient buoyancy and controllability even when completely flooded with a large wave. In the latter case, the boat may have a self-draining cockpit, for which there may be large openings in the transom or self-draining scuppers.

Figures 1, 2 show a bagless inflatable boat consisting of three longitudinal balloons 1 with front conical tips 2. For greater rigidity of the bow between the cylinders 1, sections of additional cylinders 3 are glued. For stiffness of the stern, the cylinders 1 are connected angular (consisting of the angle of the parts) by the cylinder 4. Between the cylinders 1 there are sections of the inflatable two-layer bottom 5.

Figures 3, 4, 5 show a motor trimaran, also consisting of three conical cylinders 1, connected in front by small cylinders 3, and behind by a transom 7. Side cylinders expand to the stern and can end with rear conical tips 6. The middle cylinder expands to the bow . In the place of attachment to the transom, the middle cylinder has a conical lowering 8 for the clamps of the outboard motor. All five cylinders are connected at the front of the boat with a through rod 9 passing through airtight hoses or one common sleeve.

Figure 5 shows a variant when additional cylinders 3 are located approximately on the line connecting the centers of cylinders 1. And Fig. 6 shows another variant when all five cylinders are placed at the same level along their upper edge. All cylinders are connected by a beam (board) 10, which are attached to the cylinders through elastic tool holders 11, into which the nuts are sealed. The board is attached to these nuts by the thumb screws 12 passing through the holes in the board.

Shown are two options for the bottom 5, inflatable on the left and single layer on the right.

The boat can have payols fastening at the back to the transom, and at the front - to the rod 9 or to the beam (board) 10.

Claims (8)

1. An inflatable boat containing cylinders and a bottom, characterized in that it is made according to the scheme of the polyaran and has four or more longitudinal cylinders ending in front with raised upward conical tips. 2. The boat according to claim 1, characterized in that the middle (middle) cylinders are attached to the transom using a flange. 3. The boat according to claim 1, characterized in that the middle cylinder has in the upper part a cone-shaped narrowing to the transom. 4. The boat according to claim 1, characterized in that all the cylinders are connected in front of the boat with a transverse beam attached to the cylinders. 5. The boat according to claim 1, characterized in that all the cylinders are connected at the front by a rod passing through the cylinders through airtight sleeves. 6. The boat according to claim 1, characterized in that the boat has peyoles between the cylinders, and all the pyeles are connected by a common rod that passes through the cylinders through hermetic sleeves and to which the pyeols are mounted using horseshoe-shaped brackets, or the pyeles are mounted with racks to the beam, attached to cylinders. 7. The boat according to claim 1, characterized in that the boat has, between longitudinal cylinders in the bow, segments of cylindrical cylinders with one tapered end facing forward-upward. 8. The boat according to claim 1, characterized in that the conical tip of the cylinders have straps of constant or variable length on top.

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