RU2626212C1 - Surfboard - Google Patents

Abstract

FIELD: sports.

SUBSTANCE: foldable body is composed of a fore and aft section which are pivotally connected to each other in the unfolded position for surfing and in the folded transport position with bottom parts contact. The length of the fore section is 1/3 of the body length. On the aft section along the body sides, there are two floats, made in the form of extended hollow compartments. Each of the floats has a stabilizing keel on the bottom side in the vertical plane along the body, the keel made in the form of a fin with two wheels of different diameters mounted thereon with a possibility of rotation on one axis. Between the fin on the aft section on the side located above the water, a container is installed for user's things storage with a sealed lid and two handles placed on the sides of the casing, which can be used as a seat.

EFFECT: simultaneous increase in safety and convenience of the surfboard in use both during surfing and during storage and transportation, including by disabled people.

2 cl, 7 dwg

Description

The invention relates to the field of sports and entertainment equipment, namely to surfboards, which can be used both for SUP-surfing (Stand Up Paddle surfing, which means “surfing, standing with a paddle”), and for surfing in position sitting, including for people with disabilities.

Known board, on the surface of which are two storage devices (US 2013/0122761 A1, 05.16.2013). This board is adapted for SUP-surfing. This type of board is controlled by standing with the use of the paddle in bodies of water with little or no water surface, it is quite easy to learn for both adults and children. One of the advantages of this type of board is that it is suitable for people with a lot of weight. The disadvantages of this technical solution are the large unchanged dimensions of the board, the lack of tools that increase stability on the water, the lack of a sealed lid on the storage devices, as well as the fact that the storage devices are not intended for support or sitting.

The closest analogue is a surfboard, having a folding body in length, consisting of three sections (WO 2009/070825 A1, 06/11/2009). The advantage of this board is the ability to reduce its dimensions for transportation. However, the design does not provide storage compartments and means that increase stability on the water, in addition, the board is not optimized for control in a sitting position.

An object of the invention is the creation of a universal surfboard designed for both standing and sitting.

The technical result of the invention is a simultaneous increase in the safety and convenience of a surfboard in use both during skiing, and during storage and transportation, including by people with disabilities.

The surfboard contains a folding body, which consists of a bow and stern sections, pivotally mounted with the possibility of fixing relative to each other in the folded position of the body with the contact of their bottom parts, and the length of the bow section is 1/3 of the length of the body. On the aft section along the hull, two floats are installed on the sides, made in the form of extended hollow compartments, while on each of the floats from the bottom in a vertical plane along the hull there is a stabilizer keel made in the form of a fin with rotation mounted on it on one axles with two wheels of different diameters. Between the floats on the aft section, on the side above the water, there is a container for storing the user's things with a sealed cover and two handles placed on the sides of the body, made with the possibility of using the container as a seat.

The hinged connection of the sections, in particular, can be made with the possibility of limiting their mobility relative to each other in the unfolded position of the body within the range of the angle between the sections, which is 180-175 ° degrees, which will further allow to further increase the stability on water with light waves the surface tension of the water that keeps the nose of the surf from separation. Since the force of separation is equal to the sum of the force of gravity and the force of surface tension.

The invention is illustrated by the following schematic views shown in FIG. 1-7.

FIG. 1 is a view of a surfboard from the bottom (underwater side).

FIG. 2 is a surface view of a surfboard.

FIG. 3 is a longitudinal sectional view of a surfboard in the middle.

FIG. 4. - side view of a surfboard in a folded position.

FIG. 5 is a side view of the keel stabilizer.

FIG. 6 is a bottom view (from the underwater side) of the keel stabilizer.

FIG. 7 is a view of a surfboard on the water.

In the figures, the positions indicate the following structural elements:

1 - nose section of the body,

2 - aft section of the hull,

3 - swivel,

4 - float,

5 - keel stabilizer,

6 - section lock relative to each other in the unfolded position of the housing, providing the placement of the sections in the same plane,

7 - storage capacity,

8 - handle for gripping by the user during operation,

9 - an additional handle in the bow section for easy transportation by land,

10 - lid of the storage tank,

11 - section lock relative to each other in the folded position of the housing with the contact of their bottom parts,

12 - fin keel stabilizer,

13 - the wheel of the larger diameter of the keel stabilizer,

14 - wheel of smaller diameter of the keel-stabilizer.

Lateral stability on the water and increased buoyancy is ensured by two floats 4 installed in the aft part 2, made in the form of extended hollow compartments, keel stabilizers 5 placed on them from the bottom side and a storage box mounted between the floats from the above-water side (cargo compartment) in the form containers 7 with a sealed lid 10, on which you can sit (see Fig. 1-4). The cargo compartment is located in the rear of the board, so as not to interfere with a person rowing and control SUP-surfing while standing. This location also allows a person to relax or control surfing while sitting. At the same time, the floats increase buoyancy and lateral stability, since they are spaced apart from the longitudinal axis of the board on which its center of gravity is located and at the same time have a relatively large volume.

This design due to the optimization of elements that increase lateral stability and buoyancy, is convenient and safe when standing and sitting, including for people with disabilities. The handles 8, located on the sides of the container 7, ensure the safety of using the board on the water, as they provide a comfortable grip by hands, and also provide convenience during the manipulations associated with the transportation of the board.

The implementation of the keel stabilizer 5 (see Fig. 5-6) in the form of a fin 12 with two narrow wheels of different diameters - a wheel of a larger diameter 13 and a wheel of a smaller diameter 14 with a washer between them mounted on the fin with the possibility of rotation on one axis, allows to increase stability on water by increasing the area of the keel-stabilizer, and also provides the convenience of transporting surfing manually on the road with a hard surface when the wheels are supported with a large diameter and on a loose surface due to the inclusion of smaller wheels ameter, increasing the area of the support.

The swivel joint 3 of the bow section 1 and the aft section 2 allows to reduce the length of the board by one third for the convenience of storage and transportation, taking into account the strength and reliability of the hull. These dimensions of the sections of the folding case are optimal, in the case of a larger nose section 1, surfing folded up will not be optimally compact, since it will not correspond to the standard size of the roof rack and the standard ceiling height in the apartment 2.5-3.0 m , and the implementation of the nose section 1 of a smaller size is impractical, since the length of the board in assembled form will decrease slightly. To fix the position of sections 1 and 2 relative to each other in the folded position of the body with the contact of their bottom parts, the board is equipped with a latch 11, this feature prevents damage to the sections during transportation. In the bow section 1, a handle 9 can be installed to provide a convenient grip by hand when transporting the board. In the unfolded position, sections 1 and 2 can be fixed relative to each other using an additional latch 6 to ensure that the sections are in the same plane.

The implementation of the latch 6 from an elastic material provides the mobility of the sections relative to each other in the unfolded position of the body within the range of the angle between the sections, which is 180-175 ° degrees, which will further increase the stability on water with light waves.

With this embodiment, the surfboard (see Fig. 7) increases the separation force of the bow of the board from the water when moving a person to the stern due to the action of the tension of the water. The separation force can be expressed by the following formula:

, где

where

Photo - the force of separation of the bow of the board from the water in the case of immersion of the aft in water;

- коэффициент поверхностного натяжения воды;

- coefficient of surface tension of water;

L is the perimeter of the bow of the board;

m * g is the weight of the bow.

The board can be used as a sports or entertainment equipment in ponds in the complete absence or slight agitation of the water surface. The user in the process of swimming on the board using the paddle strengthens the muscles of the upper shoulder girdle, abdomen, and in the standing position strengthens the muscles of the legs and the stabilizing muscles of the whole organism.

Claims (2)

1. Surfboard containing a folding body in length, characterized in that the body consists of a bow and stern sections, pivotally connected with the possibility of fixing relative to each other in the unfolded position of the body, and the length of the bow section is 1/3 of the length of the body, on the stern sections along the body on the sides there are two floats made in the form of extended hollow compartments, while on each of the floats from the bottom in a vertical plane along the body there is a keel-stabilizer made in the form of a fins and with two wheels of different diameters mounted on it with the possibility of rotation on the same axis, and between the floats on the aft section from the side above the water, there is a container for storing the user's things with an airtight cover and two handles placed on the sides of the body, made with the possibility of using her as a seat. 2. Board according to claim 1, characterized in that it contains a section lock relative to each other in the folded position, providing a tight and fixed contact of the bow and stern bottom parts of the surf in the transport position.

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