WO2013097014A1

WO2013097014A1 - Swimming cap

Info

Publication number: WO2013097014A1
Application number: PCT/BR2012/000549
Authority: WO
Inventors: Djan Garrido MADRUGA
Original assignee: Madruga Djan Garrido
Priority date: 2011-12-29
Filing date: 2012-12-28
Publication date: 2013-07-04
Also published as: BRMU9102785Y1; BRMU9102785U2

Abstract

The present utility model concerns a swimming cap, that comprises a main body (1), defining an external surface and an internal surface in contact with the head of a user, a main opening for placing the cap on the head of the user defining an edge (3) and at least one external hydrodynamic drag device (5), arranged on the external surface of the main body (1). This external hydrodynamic drag device (5) is designed to increase the effect of hydrodynamic drag, mainly in the extension of the head of the user/swimmer, thereby substantially increasing the effort of the user, who is required to increase his power to prevent any loss of speed when travelling through the water, thereby improving his physical condition.

Description

SWIMMING CAP

TECHNICAL FIELD

The present utility model relates to a swim cap, particularly for swimmer training, configured to increase the effect of hydrodynamic drag on the swimmer, thereby providing a substantial increase in swimmer effort to prevent loss. displacement speed in the water and therefore an improvement in the swimmer's fitness.

DESCRIPTION OF TECHNICAL STATE

The utility model, which is the subject of the present patent application, refers to a swimming cap specially designed to increase the drag force of the water through a simple hydrodynamic drag device that is easy to implement and low in cost. manufacturing.

Note that the presence of this device makes the cap less light than conventional caps.

This cap, which comprises a main body defining an outer surface and an inner surface of contact with a user's head, a main aperture for placing the cap on a user's head defining an edge, and at least one hydrodynamic drag device. Placed on the outer surface of the main body, it is comfortably placed on the head and aims to increase the athlete's effort to cope with increased water resistance in contact with the hydrodynamic drag device (s) provided therein.

High performance swimming seeks to incorporate drag-enhancing equipment into your training, such as clothing (swim trunks / shirts), palms, parachutes, and elastics, all designed to make it difficult for athletes to move around in the water and thereby increase their conditioning. when facing these pieces of resistance, that is, by overcoming such barriers, the individual becomes stronger by acquiring the tolerance for the required effort.

Swimming caps have had the primary function of protecting the wearer's hair and "reducing" the drag on the water. However, there has never been a cap designed for the sole purpose of "increasing" the drag by hydrodynamic drag device (s) such as the cap proposed here. Such an effect was only considered in the other parts of the body and the head was always seen in the aquatic environment as only capable of being covered or protected by different caps.

Utility Model Application No MU870 460-2 on behalf of Applicant, filed July 2, 2007, for example, refers to a swimming cap, fitted with an internal filler made of lightweight and comfortable material, which gives rise to a swimming nipple, and specially designed to minimize the effect of hydrodynamic drag, especially on the swimmer's head extension, thus providing a substantial increase in the velocity of swimmer movement.

The swimming cap, object of this patent application, has unprecedented features of maximizing the effect of hydrodynamic drag on its wearer's head, providing greater dislocation and decreased swimmer speed.

In short, if we look in the state of the art in the field of swimming, we will not find any cap for the purpose of making it difficult to get around in the water, since all are smooth and aim to facilitate or accelerate swimming, unlike the cap with device (s). ) proposed hydrodynamic drag, which aims to hinder and slow down the swimmer to increase their endurance and physical strength.

This effect has been scientifically tested in two ways: first in a swimmer crossing a semi-Olympic pool several times using a conventional cap and then the hydrodynamic drag device cap (s) of the present utility model, with effective results of increase (ie, worsening) of times and sensitive difficulties in its displacement every 25 meters. Tests were also performed on a dummy head, which was submerged several times with the drag cap (s) of the present utility model and with conventional caps, comparing the vertical descent times. In the end, it was found that the cap object of the present application descended more slowly due to the greater drag provided by the hydrodynamic drag device (s) on displacement in the liquid medium. These tests are described in detail in the appendix.

GOALS

It is a first objective of the present utility model to present a swimming cap, specially designed to increase the hydrodynamic drag force, by means of a hydrodynamic drag device, being this cap comfortable to the wearer's head.

It is a second objective of the present utility model to increase an athlete's effort to cope with increased water resistance in contact with the hydrodynamic drag device (s) provided on the cap. It is another objective of the present utility model to present a swimming cap, which allows to improve and increase the physical fitness and strength of its wearer or user, which should acquire tolerance to the effort required to face the "piece of resistance". provided on the bonnet, ie overcoming the physical barrier represented by the hydrodynamic drag device (s) provided on the bonnet.

It is yet another objective of the present utility model to present a swimming cap which may be a new alternative to high performance swimming training equipment and which may also be used for other levels of swimming, from initiation to improvement. or leisure.

The utility model objectives described above are achieved by the cap which will be further detailed below.

SUMMARY

The present utility model achieves these and other objectives by means of a swimming cap, which consists of a main body that surrounds a user's head, defining an outer surface and an inner surface of contact with the user's head. main opening for placing the cap on the user's head defining an edge, and at least one hydrodynamic drag device disposed on the outer surface of the main body.

The at least one hydrodynamic cap drag device of the present utility model may be made of material similar to or different from the main cap body.

In a preferred embodiment, the at least one hydrodynamic trawl may be pocket-like in shape and may vary in size and quantity depending upon the degree of difficulty that is intended to be imposed on the swimmer.

In another preferred embodiment, the at least one hydrodynamic drag device may be channel-like in shape and may vary in size and quantity, depending upon how much the swimmer's degree of difficulty is to be increased.

The at least one hydrodynamic drag device may be smooth and may be glued, sewn or tied to the cap depending on its material constitution, which may be lycra, latex, silicone, nylon, neoprene, etc.

In yet another preferred embodiment, the at least one hydrodynamic drag device may be in the shape of a V. In another preferred embodiment, the at least one hydrodynamic drag device may have water inlet opening (s) and water outlet opening (s) at its base downstream of the water inlet opening (s). , for small water flow, increasing the hydrodynamic drag force exerted on the user's head, which will thus face greater water resistance during its displacement, reducing its speed and increasing its effort to move.

In another preferred embodiment, the water inlet opening (s) are located at any position preferably not perpendicular to the cap edge.

The water outlet opening (s) (2) may be located on the side and / or lower surfaces of the at least one hydrodynamic trawl.

In yet another preferred embodiment, the at least one hydrodynamic trawl may have no water outlet opening (s).

In a preferred embodiment, as the swimmer wearing the cap moves in the liquid medium, i.e. in water, at least one hydrodynamic trawl fills with water entering the opening (s). ) water inlet. The swimmer's displacement in the water then becomes more difficult.

In another preferred embodiment, the water inlet opening (s) are located in one or more micro openings distributed on the surface of the at least one hydrodynamic drag device.

BRIEF DESCRIPTION OF DRAWINGS

The present utility model will be described based on the example (s) shown in the following figures:

Figure 1 illustrates a front view of a preferred embodiment of the cap object of the present application inserted into the user's head, the figure illustrating the main body and its outer surface, the base of the cap, the at least one hydrodynamic drag device and at least one water inlet opening of the at least one hydrodynamic drag device;

Figure 2 illustrates a left side view of the embodiment illustrated in Figure 1;

Figure 3 illustrates a right side view of the embodiment illustrated in Figure 1;

Figure 4 illustrates a rear view of the embodiment illustrated in Figure 1; Figure 5 illustrates a top view of the embodiment illustrated in Figure 1; and

Figure 6 illustrates a bottom view of the embodiment shown in Figure 1, in which at least one water outlet port is also shown.

DETAILED DESCRIPTION OF THE FIGURES

Figures 1 to 6 show a preferred embodiment of the present utility model, which consists of a swim cap, comprising a main body 1, defining an outer surface and an inner surface in contact with a user's head; and a main aperture for placing the cap on a user's head defining an edge 3; the cap further comprising at least one hydrodynamic drag device 5 disposed on the outer surface of the main body 1.

The at least one hydrodynamic trawl 5 which, in the embodiment illustrated in Figures 1 to 6, is represented as three hydrodynamic trawl devices, has in this embodiment at least one water inlet opening 2 which is located in preferably in a position not perpendicular to the rim 3 of the cap.

In the embodiment, as shown in Figure 6, the at least one hydrodynamic trawl 5 has at least one water outlet 4 which is located downstream of at least one water inlet 2 (not shown in this figure ). The at least one water outlet port 4 of the cap in the illustrated embodiment is preferably located in a non-perpendicular position with respect to the cap edge 3. However, it could be located at other positions on the cap, such as on the side surface of at least one hydrodynamic trawl 5.

In another embodiment not illustrated, the at least one water outlet port 4 of the at least one hydrodynamic dragging device 5 of the swim cap may be comprised of one or more small holes disposed on the side surface of the at least one drag device. hydrodynamic 5 or in another position.

In yet another embodiment not illustrated, the at least one hydrodynamic trawl 5 of the swim cap has no water outlet opening (s).

It should be understood that the swimming cap and its component parts described above are just some of the possible embodiments of the utility. The actual scope of the utility model is defined in the claims.

ATTACHMENT

FIRST TEST

TOUCA HYDRODYNAMICS TEST WITH TRAILER

This test was performed on 10/07/2011, at 2 pm, at the Djan Madruga gym in a 25 x 16.7 m pool and 2m of chlorinated water mirror heated to 28 degrees centigrade.

Materials used:

- 1 plastic dummy head;

- 200 g weights for fishing for tars;

- 1 traditional lycra cap;

- 1 lycra cap with hydrodynamic drag device;

- 1 Timex Ironman Triathlon wristwatch with 50 memories;

- 2 feet of Kapaloa duck;

- 2 1k ankle weights;

- 1 Zoggs swimming goggles;

- 1 common calculator;

- 1 clipboard;

- legal paper; and

- pen.

Goal:

Observe the performance of the 2 caps by comparing the vertical displacement speed in the water of the cap with a conventional trawl x cap from the surface to the bottom of the pool, ie at 2 m depth.

Methodology:

Forty (40) attempts were made in this comparative test, 2 sets of 20 attempts, as described below.

Initially, the dummy was filled with 200 g of weights and then immersed in water until all air was expelled from the dummy. It was then held on the water surface in an upside down position, manually released, and each attempt timed between the surface and the bottom of the pool.

At the end of each series of 20 trials, the timer memory for the drawing board was compiled, and subsequently all 40 were analyzed mathematically.

The 40 attempts were made in the following order: 1- 20 times the head of the dummy with conventional cap

2- 20 times the head of the manikin with drag cap

The times obtained in seconds are described below:

Dummy Test

Touca Touca

Conventional Item Drag

(seconds) (seconds)

1 4.72 4.91

2 4.37 4.51

3 4.23 4.68

4 4.73 4.78

5 4.63 4.63

6 4.52 4.61

7 4.80 5.12

8 4.36 4.88

9 4.65 4.82

10 4.65 4.73

11 4.35 4.54

12 4.32 4.59

13 4.34 4.73

14 4.47 4.87

15 4.31 4.68

16 4.32 4.93

17 4.35 4.56

18 4.18 4.74

19 4.32 4.59

20 4.39 4.70

Average in seconds 4.45 4.73

Percentage Increase (%) 6.29

Time Addition 0.28

Results: The hydrodynamic drag cap achieved a slower average descent rate than the conventional cap by 28 hundredths, ie, 6.3% more drag was found.

It can be concluded, therefore, that the drag cap has a worsening time of 28 cents, ie a considerable drag increase of 6.3% compared to a conventional cap in these tests performed at 2m vertical descent. depth in pool.

SECOND TOUCA HYDRODYNAMIC TEST TEST WITH TRAILER

This test was performed on 08/10/2011 at 12 noon at the Djan Madruga gym in a 25 x 16.7 m pool and 2m chlorinated water mirror heated to 28 degrees centigrade.

Materials used:

- 1 conventional lycra cap;

- lycra cap with drag device;

- 1 Timex Ironman Triathlon wristwatch with 50 memories;

- 1 Zoggs swimming goggles;

- 1 calculates. 'Common time;

- clipboard;

- legal paper, and

- pen.

Goal:

Observe the performance of the 2 caps by comparing the horizontal displacement velocity in the water of the cap with a conventional traverse x cap in 50 m "shots".

Test Subject: Experienced Swimmer, Federated, 52-Year Olympic Level Methodology:

Thirty (30) attempts were made in this comparative test, 3 series of 10 trials, as described below.

The swimmer exited the edge every 1 minute, maintained an average of 17 strokes per lap, and breathed sideways striving to keep up with the same pace with each shot. Time was recorded every 50m on the timer.

At the end of each series of 10 attempts, the cap was changed for 1 min. interval and, at the end of the 3 series, time was recorded on the drawing board and, afterwards, all 30 attempts were analyzed mathematically. The 30 attempts were made in the following order:

1 - 10 times without cap

2- 10 times wearing the cap with drag device

3- 10 times wearing the conventional cap

The times obtained in seconds are described below:

Without

Order Touca Touca Drag Conventional Touca

(seconds) (seconds) (seconds)

1 38.91 39.60 39.03

2 39.00 39.62 38.22

3 38.65 39.30 38.50

4 38.82 39.06 38.69

5 38.88 38.77 38.56

6 39.40 38.77 38.34

7 39.10 39.60 38.82

8 39.40 39.53 38.94

9 38.79 39.21 38.96

10 '38.63 39.06 38.64

Average 38.96 39.25 38.67

Percent Trailing Cap x Without Cap Trailing Cap x Conv.

0.74% major drag 1, 5% major drag

1,50

Results:

The drag cap has a slower average speed of shots than the conventional cap by 58 cents, ie 1, 5% more drag.

The drag cap had a slower average speed on shots than the head without cap by 29 cents, ie 0.74% more drag.

It was concluded that the drag cap showed a time worsening of 58 hundredths, ie a drag increase of 1.4% compared to a conventional lycra cap in these pool tests.

Claims

1. Swimming cap, comprising:

a main body (1) defining an outer surface and an inner surface in contact with a user's head; and

a main opening for placing the cap on the user's head defining an edge (3); the cap being characterized by the fact that it further comprises:

at least one hydrodynamic drag device (5) disposed on the outer surface of the main body (1).

Caps according to Claim 1, characterized in that the at least one hydrodynamic trawl (5) has at least one water inlet opening (2).

Cap according to claim 2, characterized in that the at least one water inlet opening (2) is located in a non-perpendicular position with respect to the cap edge (3).

Caps according to either of Claims 2 and 3, characterized in that the at least one hydrodynamic trawl has at least one water outlet (4).