1. Field of the Invention
The present invention is directed to wetsuits, and in particular, to three-dimensional structures that are formed integrally with the wetsuits to increase the drag forces of a swimmer, thereby providing increased forces for propelling a swimmer through the water.
2. Description of the Prior Art
In the wetsuit market today, many devices have been developed that purport to increase swimming efficiency. These devices are usually added pieces of molded materials like silicone or rubber that are attached to the arm or leg by means of stitching or gluing. The three-dimensional shapes of such devices extrude from the arm or leg, thereby increasing the surface area for drag during a swimming stroke which would aid in propulsion through the water to increase swim speed. The drawback to such devices is that, while the drag is increased, the friction also increased proportionally.
It is one objective of the present invention to provide a structure for use with a wetsuit that increases drag for propulsion while still minimizing friction through the water.
It is another objective of the present invention to provide a structure for use with a wetsuit that allows the wetsuit design to be streamlined and light-weight, and which allows for simplified production and reduced production costs.
To accomplish the objectives set forth above, the present invention provides a wetsuit comprising a plurality of pieces of material that are stitched or glued together to form the wetsuit, and at least one drag-creating section provided on one of the pieces of material. The drag-creating section has a plurality of water catch devices, each water catch device having a flap piece and a base portion, with a cavity defined between each flap piece and the base of the piece of material or the base portion of an adjacent water catch device. Each flap piece is constructed such that it can be expanded and collapsed to allow water to enter and leave the cavity, and the plurality of water catch devices are arranged in series immediately adjacent to each other, with the cavity of each water catch device on the piece of material opening in the same direction towards another water catch device.
The following detailed description is of the best presently contemplated modes of carrying out the invention. This description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating general principles of embodiments of the invention. The scope of the invention is best defined by the appended claims.
Referring to
A plurality of drag-creating sections are provided at different locations on the outer surface of the wetsuit. For example, a drag-creating section 18a can be provided on the inner forearm portion of the left arm 12a, another drag-creating section 18b can be provided on the inner forearm portion of the right arm 12b, yet another drag-creating section 20a can be provided on the outer calf portion of the left leg 16a, and a further drag-creating section 20b can be provided on the outer calf portion of the right leg 16b.
Each water catch device 22 is created by providing a flexible panel 26 that covers the base 24 or a base portion 26b of another panel 26 in a manner which defines a cavity 28 therebetween. More specifically, each panel 26 can have three portions, a flexible flap piece 26a, a base portion 26b, and an inter-joining section 26c between the flap piece 26a and the base portion 26b, as best shown in
The flap piece 26a is constructed such that it can be expanded and collapsed to allow water to enter and leave the cavity 28. This is facilitated by providing the surface area of the flap piece 26a to be greater than the surface area of the underlying base 24 or base portion 26b so that the flap piece 26a can expand. The flap piece 26a can be moved between the collapsed configuration (see
The flap pieces 26a assist the swimmer (wearing the wetsuit 10) in generating drag, while minimizing undesirable friction. For example, in a swim stroke for the freestyle stroke (see
The water catch devices 22 are oriented on the arms and legs of the wetsuit 10 in a manner to provide additional drag only during portions of a stroke where the swimmer's arms and legs are moving in a rearward direction, thereby providing propulsion through the water in a forward direction. For example, the water catch devices 22 for the arms 12a, 12b in
The structure and arrangement of the drag-creating sections and their water catch devices 22 allows for the provision of a wetsuit that helps to increase drag for propulsion while still minimizing friction through the water, and a wetsuit design that can be streamlined and light-weight, and which allows for simplified production and reduced production costs. In particular, each drag-creating section has a plurality of water catch devices 22 that are arranged (in series) one immediately behind the other. This arrangement allows less material to be used for the wetsuit 10 as each panel 26 itself defines a cavity 28 and a base portion 26b. Less material used means less material waste, and reduces the stitching area as well. In addition, this arrangement provides a clearer and slicker outer surface as the stitching 30 is not visible from the exterior, thereby helping to reduce friction and providing a more streamlined wetsuit outer surface.
While the description above refers to particular embodiments of the present invention, it will be understood that many modifications may be made without departing from the spirit thereof. The accompanying claims are intended to cover such modifications as would fall within the true scope and spirit of the present invention.