The present invention relates, in general, to body surfing, and more particularly to a body surfing suit. More particularly, the present invention relates to a buoyant body suit that also improves velocity and directional control in the water.
Body surfing is a way to enjoy the thrill of riding a wave. Body surfers, generally, simply extend their bodies horizontally, projecting their arms forward and in line with their body while allowing a breaking wave to drive them shoreward with the surf. To the body surfer, it is important to be able to ride waves of varied sizes, to enjoy a stable ride and to be able to control direction and position on a wave face. Since a body surfer rarely uses any equipment other than swim fins, it is quite difficult for a body surfer to adequately control the stability of his ride and control his direction and position on a wave face.
For a body surfing suit to work in real life, bending is key (to allow for swimming), and buoyancy in the correct location(s) is also key. It is preferable to have a buoyancy gradient that is greatest (e.g., most buoyant) at the surfer's head and tapers down toward the feet to ensure that the surfer does not plow and tumble face first.
A few body surfing suits can be found in the prior art. For example, U.S. Pat. No. 5,106,331 to Lizarazu discloses a body surfing apparatus having a garment with a rigid outer shell attached to the torso portion of the garment and an inner buoyant unit underneath the torso portion of the garment. The rigid outer shell and inner buoyant unit make up a laminated multi-layered abdominal-chest plate. The shape of the abdominal-chest plate is contoured to cover the abdomen and extend upward into the central portion of the chest. This has two major problems: (1) the chest plate does not allow adequate forward bending because the rigidity of the laminated structure is not anatomically designed to allow full bending where the body actually bends (namely, the ribcage needs to be separate from the abdomen or it severely limits bending which one needs to swim properly) and (2) the suit puts the buoyant material in the wrong place, e.g., front center of the body, which results in plowing.
Additionally, the Lizarazu body surfing suit includes a number of fins located on the rigid outer shell and on the arms and legs of the suit. The arm fins are positioned on the upper arm region, are shaped incorrectly to be functional, and the lack of smooth edge detail causes a lot of drag. The arm fins do not likely provide buoyancy, but are rather present for stability. The legs fins suffer from similar problems as the arm fins and are present only for stability.
U.S. Pat. No. 5,013,271 to Bartlett discloses a body surfing suit having buoyant material placed on the chest and in various channels located on the legs of the suit. The Bartlett body surfing suit suffers from the following problems: (1) The buoyant material is incorrectly placed anteriorly and the main component includes coverage of the chest and abdomen in one piece; this makes the suit too rigid to allow adequate bending/tucking forward which is almost a requirement when maneuvering in the water to consistently catch waves. (2) In the upper chest and back region, the buoyant material is positioned both on the front and back of the suit in pad-like structures, but is not contoured anatomically and offers little benefit beyond adding some buoyancy. The back pads are simply buoyant areas without defined, streamlined 3-D contours. (3) The upper pointed regions of the chest piece extend out near the shoulder. These points impede anterior movement of the arm during the swimming stroke. (4) The suit does not have fins to aid in stability.
The present invention seeks to overcome these limitations by providing the body surfer a means to stabilize his ride and control his direction/position on a wave.
Apparatus and methods for body surfing which provide the body surfer a means to stabilize his ride and control his direction/position on a wave are described herein.
According to one aspect, a body surfing apparatus includes a body suit having a torso and legs; a plurality of fins and/or rails located on the torso including the chest; one or more fins located on the legs; and one or more fins located on the arms. The fins are preferably either built into the suit, or created to be removable and interchangeable. The fins may be attached to the body suit via an adhesive or mechanical means such as, but not limited to, Velcro® attachment. The suit may include a base layer, such as, but not limited to, Neoprene.
According to another aspect, the body surfing suit may include segmented sections which may act as control surfaces, planning elements, buoyancy elements, or a combination. The segmented sections, in one embodiment, divide the body surfing suit into a chest segmentation, an abdominal segmentation, a pelvic segmentation, and a thigh segmentation. In another embodiment, the segmentations are further divided into more segmentations. The segmented sections may also include fins.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention, and together with the description, serve to explain the objects, advantages, and principles of the invention. In the drawings:
After reading this description it will become apparent to one skilled in the art how to implement the invention in various alternative embodiments and alternative applications. However, all the various embodiments of the present invention will be described herein, it is understood that these embodiments are presented by way of an example only, and not limitation. As such, this detailed description of various alternative embodiments should not be construed to limit the scope or breadth of the present invention as set forth below.
Anatomical reference planes and directions may be defined as follows. The sagittal plane is a longitudinal plane that divides the body into a right and left hemisphere (or in some instances, be defined as a central axis of the body). The frontal plane is also a longitudinal plane but is perpendicular to the sagittal plane and divides the body into anterior (front) and posterior (back) hemispheres. The traverse plane is a latitudinal plane that divides the body into superior (upper) and inferior (lower) hemispheres. The anterior direction refers to the front of the body, and the posterior direction refers to the rear of the body. The distal direction refers to the direction away from the origin, and the proximal direction refers to the direction towards the origin. The dorsal direction refers to the upper surface of the body or towards the back of the body, and the ventral direction refers to the lower surface of the body or towards the stomach. The lateral direction refers to the side of the body or away from the sagittal plane, and the medial direction refers to the middle of the body or towards the sagittal plane. The rostral direction refers to the direction towards the front of the body, and the caudal direction refers to the direction towards the back of the body or towards the tail. Objects superior compared to other objects refer to being above or over the other object, while objects inferior compared to other object objects refer to being below or under the other object.
In multiple embodiments, the parts of the body may be defined as follow. The arm is defined as the part of the upper limb between the shoulder and the elbow joint, and the forearm is defined as the segment between the elbow and the wrist. The thoracic region is defined as the region of the chest from the thoracic inlet to the thoracic diaphragm. The abdominal region is defined as the region from the thoracic diaphragm to the pelvic inlet (pelvic brim). The upper leg is defined as the region from the inguinal ligament to the knee. The lower leg is defined as the region from the knee to the ankle.
Body 160 of body surfing suit 100 is preferably constructed from Neoprene® or other lightweight, stretchable, water, chemical and UV resistant material. Neoprene®, also known as polychloroprene, is part of a family known as synthetic rubbers or plastics. For example, this underlay/undergarment material of suit 100 may be fabricated from Neoprene® in various thicknesses. A thicker Neoprene® suit provides more buoyancy and allows a surfer to body surf in colder waters (e.g., East Coast) since Neoprene® keeps the body temperature elevated. In some embodiments, an off-the-shelf wetsuit may be used for body surfing suit 100. In other embodiments, the body surfing suit 100 may be constructed from polyvinyl chloride (“PVC”), ethylene vinyl acetate (“EVA”), cross-linked polyethylene, cross-linked polyolefin, and polyurethane. Other materials may include plastic, fiberglass, IXL foam, fiberclad, phuzion, high density polyethylene (HDPE), polystyrene, Lycra®, Volara elastopolymer, and polyethylene.
For example, for those applications which expose the body to temperature differences, such as those associated with diving, the Neoprene® suit may be manufactured by foaming the Neoprene® plastic with an inert nitrogen gas. When placed in the presence of nitrogen gas being foamed into the Neoprene® material, tiny enclosed bubbles create voids in the material which reduce the surface area covered. These bubbles also help reduce the density of the material, allowing it to be much more buoyant. The buoyancy factor is quite helpful when used in wakeboarding, surfing and snorkeling applications.
As shown in
In some embodiments, the lateral chest fins 110a start out at the midpoint of the clavicle and continue downward and laterally across the breast and ending at the inferior, lateral extent of the ribcage. The lateral chest fins 110 may have a cambered shape. The lateral chest fins 110a may be designed to completely avoid the axillary region of the user's body which would prevent interference with the arm stroke. This complex 3-D shape with a slight twist allows the body of the surfer to bend anatomically and does not impede any of the bending movement. The force of bending is directed laterally and the force unloads laterally allowing the bending to occur unimpeded. In some embodiments, the chest fins are thicker at the base (proximate to body 160) and taper upward to a rounded, e.g., dolphin dorsal-like fin, point at the top or edge. Both lateral chest fins 110a and center chest fin 110b preferably aid in gripping the side of a wave, provide directional stability, and aid in preventing yaw and roll.
Movement associated with the human body occurs in accordance with the Orthopedic Prosthetic Function principles wherein the human body is composed of multiple functional segments. These segments may work independently or in concert with one another in a coordinated fashion to provide human locomotion and/or functional work and movement. There are critical anatomic functional segments which must retain full range of motion (ROM) or the user's swimming stroke will be vastly impaired. The critical areas are the head and neck, the upper arms, the lower arms and wrists, the axilla, the thorax, the abdomen, the trunk, the upper legs, the lower legs, and ankles. All of the chest fins conform precisely to the underlying anatomy and do not violate the functional anatomic segments (i.e. they do not bind or tie two or more adjacent anatomic segments together such as the thorax and abdomen). As a result full range of motion (ROM) critical to swimming is retained.
Additional functions of the lateral chest fins may include user stability in the water and spreading out the buoyancy laterally. These lateral chest fins are constructed to bend and flex with the movement of the user. These lateral chest fins are not rigid. The lateral chest fins may also function as a unit with the center chest fin to significantly enhance anterior buoyancy. For buoyancy to be effective it must be properly positioned circumferentially around the body (anteriorly-posteriorly, side to side, & superior-inferiorly) in just the right amounts while avoiding impingement of critical anatomic moving segments. This buoyancy may be referred to as functional buoyancy hereinafter. Functional buoyancy may be critical to orient the user in a head-up and front-lying position. Chest fins may be placed in locations for optimum buoyancy while still avoiding interference with a swimming stroke. In some embodiments, the chest fins augment propulsion and improve the swimming stroke to displace more water propelling the surfer faster and more efficiently, while giving the surfer directional control on the wave throughout the ride. All of the fins in the body surfing suit may be placed in positions to allow for buoyancy balance while also not interfering with swimming strokes. Furthermore, the fins may combine buoyancy, enhanced contour (improves human shape to be more streamlined as well as giving directional control), and flexibility to allow for freedom of movement.
In some embodiments, the lateral chest fins 110a are about 2-170 millimeters wide at the base and taper up to about a 1-40 millimeter wide rounded point at the top or edge. In a preferred embodiment, lateral chest fins 110a are about 100 millimeters wide at the base and taper up to about a 15 millimeter wide rounded point at the top or edge. In some embodiments, lateral chest fins 110a are about 10-300 millimeters tall, e.g., from base to edge. In a preferred embodiment, lateral chest fins 110a are about 35 millimeters tall.
In some embodiments, center chest fin 110b is about 2-150 millimeters wide at the base and tapers up to about a 1-40 millimeter wide rounded point at the top or edge. In a preferred embodiment, center chest fin 110b is about 80 millimeters wide at the base and tapers up to about a 15 millimeter wide rounded point at the top or edge. In some embodiments, center chest fin 110b is about 10-300 millimeters tall. In a preferred embodiment, center chest fin 110b is about 35 millimeters tall.
The center chest fin 110b may be anatomically contoured to the underlying sternum right in the midline of the chest. The center chest fin may extend from the manubrium to the xiphoid process. In some embodiments, the center chest fin 110b does not encroach onto the abdominal anatomic segment. The center chest fin may be contoured specifically to allow full movement of the ribcage including bending and rotation without interfering with the user's swimming stroke or movement in the water. While in the water, the center chest fin may provide center buoyancy and center directional control. Furthermore, the center chest fin may provide a superior-inferior buoyancy gradient which allows for a head up tilt to the user. In some embodiments, the combination of the volume of air within the user's lungs, the fat content of the chest and abdomen, and the chest fins (center and lateral) may provide the superior-inferior buoyancy gradient. The head up tilt may be critical to catching and maintaining a wave. In some embodiments, this head up tilt may help prevent head or neck injuries.
Body surfing suit 100 also includes a plurality of fins or skeggs located on at least the sleeves 104 and/or legs 106 of body 160. As shown in
The upper arm fins 120a may be positioned anteriorly, posteriorly, or centered at the midpoint of the arm front to back. Preferably, however, the upper arm fins 120a may be located on the lateral aspect of the arm midway between the shoulder and the elbow. In such a position, the upper arm fins 120a would not impede the user during an arm stroke. The upper arm fins 120a are of a blade shape and augment the anatomy of the upper lateral arm to enable the user to stick out the arm onto the face of a wave to grip the water and guide the user. In particular, the upper arm fin 120a may be useful when a user wishes to catch the face of a wave. For example, the user may put out his left arm into the face of the wave and the blade 156 of the upper left arm fin 120a will catch the wave and propel and/or hold the user in the direction of the wave. This could be called leading with the arm. Another method of using the arm fins is when the arms are held at the sides of the body and then the shoulders rolled anteriorly and forward, the upper arm fins 120a may create a water foil beneath the user. This may cause an inferior vortex underneath the rider to propel the user forward along the wave with almost no effort by the user. This could be called leading with the head. In some embodiments, the lateral placement of the upper arm fins 120a allows for an anterior-posterior neutral buoyancy. This may allow for more balanced swimming or body surfing.
In some embodiments, the lower arm fins 120b are about 2-100 millimeters wide at the base and taper up to about a 1-40 millimeter wide rounded point at the top or edge. The lower arm fins 120b may be positioned anteriorly, posteriorly, or centered at the midpoint of the arm front to back. Preferably, however, the lower arm fins 120b are centered laterally at the mid-portion of the forearm, between the wrist and the elbow, front to back. In a preferred embodiment, the lower arm fins 120b are about 45 millimeters wide at the base and taper up to about a 5 millimeter wide rounded point at the top or edge. In some embodiments, lower arm fins 120b are about 10-200 millimeters tall. In a preferred embodiment, lower arm fins 120b are about 45 millimeters tall. In some embodiments, the lower arm fins 120b may be placed on the lateral aspect of the arm midway between the elbow and the wrist. In such a position, the lower arm fin would not impede the user during an arm stroke. The lower arm fins allow for similar swimming and surfing functionality as the upper arm fins described above.
Also, as shown in
The upper lateral leg fins 120c may be contoured precisely to the underlying anatomy of the upper leg. The upper lateral leg fins 120c may extend from the top of the iliac crest laterally downward to just above the knee. The top of the upper lateral leg fin 120c may be contoured at a low height so as not to interfere with the hand during a swimming stroke. In some embodiments, the upper lateral leg fin 120c is shaped like a dolphin fin. The upper lateral leg fin 120c may increase in height as it extends inferiorly down the leg and then taper down at the inferior aspect. The upper lateral leg fin 120c may create a torpedo-like shape to the body surfing suit 100 and create a more streamline effect. This may increase water displacement during a kicking stroke which would result in greater propulsion through the water. The upper lateral leg fins 120c may also provide greater stability. In some embodiments, the upper lateral leg fins provide buoyancy to the upper leg but still maintain an anterior-posterior neutral buoyancy.
The lower lateral leg fins 120d preferably extend from the lower aspect of the tibial plateau (e.g., shin) of the surfer to the ankle. In some embodiments, the lower lateral leg fins 120d are about 10-150 millimeters wide at the base and taper up to about a 1-40 millimeter wide rounded point at the top or edge. The lower lateral leg fins 120d may be positioned anteriorly, posteriorly, or centered at the midpoint of the shin front to back. Preferably, however, the lower lateral leg fins 120d are centered at the mid-portion of the shin, front to back. In a preferred embodiment, the lower lateral leg fins 120d are about 50 millimeters wide at the base and taper up to about a 15 millimeter wide rounded point at the top or edge. In some embodiments, lower lateral leg fins 120d are about 10-250 millimeters tall. In a preferred embodiment, lower lateral leg fins 120d are about 90 millimeters tall. In some embodiments, lower lateral leg fins 120d may aid in propulsion through the water, thereby reducing or eliminating the need for the surfer to wear fins on his feet.
The lower lateral leg fins 120d may be contoured precisely to the underlying anatomy of the lower leg. The lower lateral leg fins 120d may extend from just below the knee laterally downward to just above the ankle bone. The top of the lower lateral leg fin 120d may comprise a shape similar to the upper lateral leg fin 120c. The lower lateral leg fin 120d may increase in height as it extends inferiorly down the leg and then taper down at the inferior aspect. Furthermore, the lower lateral leg fins 120d may provide the same functions as the upper lateral leg fins described above.
As shown in
In some embodiments, the central shin fins 120f are about 5-120 millimeters wide at the base and taper up to about a 1-30 millimeter wide rounded point at the top or edge. These fins may be placed anywhere on the anterior shin region, but preferably, the central shin fins 120f are centered at the mid-portion of the shin, side to side. In a preferred embodiment, the central shin fins 120f are about 50 millimeters wide at the base and taper up to about a 5 millimeter wide rounded point at the top or edge. In some embodiments, central shin fins 120f are about 5-250 millimeters tall. In a preferred embodiment, central shin fins 120f are about 110 millimeters tall.
Referring to
In some embodiments, the central calf fins 120h are about 5-120 millimeters wide at the base and taper up to about a 1-30 millimeter wide rounded point at the top or edge. These fins may be placed anywhere medial-lateral on the calf region, but preferably, the central calf fins 120h are centered at the mid-portion of the calf, side to side. In a preferred embodiment, the central calf fins 120h are about 30 millimeters wide at the base and taper up to about a 5 millimeter wide rounded point at the top or edge. In some embodiments, central calf fins 120h are about 5-250 millimeters tall. In a preferred embodiment, central calf fins 120h are about 100 millimeters tall.
As shown in
In some embodiments, body surfing suits include only a torso and sleeves, featuring only chest fins, arm fins, or a combination of both. In other embodiments, body surfing suits include only legs, featuring only upper leg fins, lower leg fins, or a combination of both.
Also as shown in
Additional fasteners may be used to keep body surfing suit 100 on the surfer. For example, fasteners (not shown) may be included at the ends of the limbs of suit 100. On the legs, fasteners may be stirrups; stirrups would allow the suit 100 to be pulled down and maintained in a proper position. On the arms, fasteners (not shown) may be finger rings. It is envisioned that as few as one or as many as five finger rings may be used in each fastener. Finger rings would aid in securing the suit 100 to the hand of the surfer, keeping the correct position of the suit in the lateral to medial directions.
Alternatively, in some embodiments, the hand of the surfer is encased by a glove (not shown) that is integral to suit 100. The glove may additionally be webbed, such that the hand of the surfer looks like a frog or duck foot when worn. These webbed gloves may be made of a thin spandex material so that it easily opens and collapses. In other embodiments, the webbed gloves will have cutoff finger tips to allow for size discrepancies.
Referring now to
In some embodiments, the lateral foot fins 330 have a rounded front and taper backward in a curved arc. Lateral foot fins 330 preferably start at the base of the little toe and come forward slightly, then round at the front extending laterally about 10-300 millimeters. In a preferred embodiment, the lateral foot fins 330 extend laterally about 150 millimeters. Lateral foot fins 330 preferably are about 10-100 millimeters wide at the top of the foot tapering down to about 1-30 millimeters laterally. In a preferred embodiment, lateral foot fins 330 are about 40 millimeters wide at the top of the foot tapering down to about 15 millimeters laterally.
In some embodiments, booties 300 are fabricated from Neoprene®. As such, the booties 300 should easily slide onto the surfer's feet and complement suit 100. In a preferred embodiment, there is about a 35-millimeter Neoprene® section transition from the ankle to the foot which will stretch to allow for size discrepancies in wearers.
In some embodiments, the body surfing suit may comprise only a torso section and arms. In some embodiments, the body surfing suit may be an article of recreational clothing comprising a body including a torso, a collar, a pair of arms, and one or more fins. The torso may include a chest region and a shoulder region, and the arms may include an elbow region and a wrist region. The shoulder region may include a lower end, the elbow region may include an upper end and a lower end, and the wrist region may include an upper end. The fins of such an embodiment may include: one or more upper arm fins, wherein each upper arm fin extends from the lower end of the shoulder region to the upper end of the elbow region, and wherein each upper arm fin includes a blade portion. The fins may also include: one or more lower arm fins, wherein each lower arm fin extends from the lower end of the elbow region to the upper end of the wrist region, and wherein each lower arm fin includes a blade portion. The fins may also include: one or more chest fins located in the chest region, wherein the chest fins may include two lateral chest fins and a center chest fin, and wherein each chest fin includes a blade portion.
In some embodiments, a segmentation may overlap over another adjacent segmentation, such as chest segmentation 230 overlapping over abdomen segmentation 211. This may be indicated by articulation lines 240, 240a, 240b, 240c, 240d, 240e, and 240f, as shown in
In embodiments where the segmentations are constructed from a hard plastic material, a floatation foam may be attached to the neoprene suit underneath the segmentations. The floatation foam may be attached to the outside or inside of a body surfing suit. The floatation foam may also be placed into pockets within the body surfing suit to attain a desired buoyancy by altering the thickness of the buoyant material. In embodiments where the segmentations are constructed from a semi-flexible material such as EVA, then the buoyancy may already be built into the segmentations due to the physical characteristics of the foam. In some embodiments, the material between segmentations may be thinner to allow for additional flexibility during bending of the body.
As shown in
In some embodiments, as shown in
The articulation lines 240 may be located where bending of the user occurs, such as the bending between the abdomen and the chest. In certain embodiments, the segmentations may act like fish scales where the segmentations slide over each other when the body bends. The segmentations may also pull forward and allow for bending and flexibility which helps the user to catch onto a wave and propel the user in certain directions. In some embodiments, the segmentations are flat and mainly provide buoyancy and a flat planning surface. In other embodiments, the segmentations feature a raised surface which provides a directional control surface.
In some embodiments, each individual segmentation is its own component made separately and then assembled in a factory or put on by the user. Each individual segmentation may be an independent functional unit and then combined with other segmentations to form a larger unit structure. A segmentation may feature a flat surface or may feature a 3-D contour with a concave or convex surface. In some embodiments, segmentations may range in area from 2 mm2 to 1500 mm2. Zippers 215, as shown in
Overlying mosaic segmentations 216 may partially overlap underlying mosaic segments to allow movement between mosaic segmentations. Mosaic segmentations 216 may be attached in a similar fashion as fish scales are attached on fish where they overlap in one direction and allow water to flow easily and effortlessly in a forward direction. Furthermore, the overlapping mosaic segmentations 216 may aid in hydrodynamic gliding. If water flow is coming against the mosaic segmentations 216 (i.e. “against the grain”), then the mosaic segmentations 216 may open up and cause drag. The mosaic segmentations 216 may be flat or have 3-D anatomy built into them similar to a puzzle, but they may also form a complex 3-D structure. In some embodiments, water may only flow easily in one direction.
The added flexibility combined with the ability to create a contoured segmented 3-D hydrodynamic design with built in buoyancy of the materials used to make the components, may give the user a distinct advantage to catching waves. Propulsion via swimming and reduced drag may also provide further advantages to catching waves.
In some embodiments, the body surfing suit is a short suit wherein the suit cuts off at the knee and just below the elbow (as seen in
The platform 153 of the interchangeable fin 150 may include a top surface and a bottom surface. The blade 156 may be affixed to the top surface of the platform 153 and may leave a top exterior edge 158 of the top surface of the platform 153 free. The top exterior edge 158 of the top surface of the platform 153 may be configured to be removably attached to the inside layer of a body suit 100. The interchangeable fin 150 may be layered with Velcro® 151 around the top exterior edge 158 of the top surface of the platform 153. The Velcro® 151 may adhere to an inside layer (not shown) of the pocket 152. As known in the art, Velcro® adheres via a “hook and loop” mechanism. In some embodiments, the inside layer of the pocket 152 is composed of a nylon fabric or other loop-type fabric which may act as the “loop”. In some embodiments, the inside layer of the pocket 152 may be equipped with “loop material” adhered to the inside of the suit 100. Chest fins, arm fins, and leg fins may all be interchangeable. In some embodiments, the bottom surface of the platform 153 may be attached to the outside layer of a body suit 100 by Velcro®, gluing, sewing, tying, or stapling, or some other attachment means.
In some embodiments, the interchangeable fins 150 are attached by other attachment means such as gluing, sewing, tying, or stapling. In some embodiments, the interchangeable fins 150 may be covered with a fabric, such as, but not limited to, nylon or Lycra®. This covering may protect the surface of the fin from damage and provide a layer for cosmetic design. In some embodiments, fins may be interchanged for other fins of different size, construction, material, or other modifications. Furthermore, fins may be interchanged depending on a variety of factors such as surf conditions or weather conditions. For instance, if the anticipated waves are slower or smaller than usual, wider fins may be interchanged to compensate for the reduction in speed. Moreover, a beginner surfer may begin with wide and forgiving fins, and then interchange them at a later time for more aggressive fins once he feels ready for more advanced surfing. In some embodiments, the interchangeable fin 150 may be constructed from a different material compared to the body surfing suit. This may be useful in situations where the user desires for a different amount of flexibility in the fins. In some instances, the interchangeable fin 150 may be constructed from multiple materials.
If such a suit with interchangeable fins 150, were purchased a set of interchangeable fins 150 would come with the body surfing suit and additional sets of various sizes could be purchased. The body surfing suit 100 would be equipped with a number of pockets 152 to allow the fins to be inserted and adhere to the suit. Other methods besides pockets may be used to affix different sized fins to the suit wherein the fins are externally bonded to the suit in a temporary fashion. In some embodiments, the fins would be inserted from the inside of the body surfing suit so that the exterior of the fin would face outward and form a fin on either the arms, legs or torso of the user. Such an embodiment of the body surfing suit 100 with interchangeable fins 150 would be very beneficial if the user were to potentially want to ride different types of waves. For example the user may want smaller fins with smaller wave conditions; while in bigger wave conditions the user might want to change out the fins and place in larger interchangeable fins 150. In this embodiment of the body surfing suit 100 the user could buy various sizes of fins to be utilized with the suit.
In some embodiments, all of the fins are preferably fabricated from a rigid material such as a glass fiber material or injection molded plastic material. In one embodiment, the fins are fabricated from high density thermoplastic polyurethane material. Alternatively, the fins may be fabricated from a more flexible and buoyant material such as floatation foam. Such floatation foams include, for example, polyvinyl chloride (“PVC”), ethylene vinyl acetate (“EVA”), cross-linked polyethylene, cross-linked polyolefin, and polyurethane. Other materials may include plastic, fiberglass, IXL foam, fiberclad, phuzion, high density polyethylene (HDPE), polystyrene, Volara, elastopolymer, and polyethylene.
In some embodiments, the fins are fabricated using PVC an outer shell or form. These forms would then be able to be filled with a foam material such as polyurethane foam. Filling the form with foam would help in the reduction of unnecessary weight as well as aid in the buoyancy of the surfer in the water.
In other embodiments, the fins will be created out of a flat sheet material, which is then molded or formed. The fins will then be able to be sewn into body suit 100, segmented body suit 200, and mosaic segmented body suit 201, in either the form of pockets or protrusions which stick through openings or slots cut into any of the body suits. Alternately, or in addition, the fins may be sewn on or attached to body suit 100 with an adhesive, or adhered to the suit via any variety of methods.
In some embodiments, suit 100 has a gradually tapering thickness (circumferentially) of buoyant foam material (e.g., buoyancy layer) which will begin with a thickness of 1-75 millimeters at the ankle region and increase up to 5-100 millimeters at the shoulder or sternum region. In some embodiments, there will be areas laterally as well as on the abdominal region which will be fin-like. Preferably, all of these areas will smoothly contour and blend into the suit 100, making it as seamless as possible.
In some embodiments, the buoyancy layer is covered with a drag reducing layer. The drag reducing layer may be produced by dipping, painting, spraying, or applying PVC or some other drag reducing flexible material onto the buoyancy layer.
In some embodiments, the lateral and center chest fins, leg fins, and back fins have a hardness between 20-25 durometers (Shore scale). In some embodiments, the leg and arm fins have a hardness between 30-40 durometers.
In some embodiments, the body surfing suit may be manufactured by injection molding or compression molding. Fins may also be manufactured by injection molding or compression molding. In some embodiments, the body surfing suit or the fins may be manufactured utilizing 3-D printing technology. Injection molding consists of high pressure injection of thermoplastic polymers such as polychloroprene (which forms Neoprene®) into a mold which shapes the polymer into the desired shape. The thermoplastic polymers are melted until soft enough for injection into a mold and after injection the molded shape is cooled, hardened, and ejected from the mold. Molds can be single cavity or multiple cavities. In multiple cavity molds, each cavity can be identical and form the same parts or can be unique and form multiple different geometries such as different fin structures in a single cycle. Molds are generally made from tool steels, but stainless steels molds, aluminum molds, or wood molds may be suitable for certain applications.
Compression molding is a forming process in which a plastic material is placed directly into a heated metal mold, then is softened by the heat, and forced to conform to the shape of the mold as the mold closes.
In some embodiments, the processes which will be utilized and best fitted for this type of product are thermoforming and station filling. Thermoforming starts when a sheet of extruded plastic material of specified thickness goes into a heater or heating area. Hot plates, arranged about 6 inches away from both the top and bottom of the sheet, heat the plastic to make it soft. After the plastic is soft it is removed out of the heating area by an automated, timed carrier. Next, an aluminum mold with the profile of the product desired rises up from underneath the sheet. The mold is raised to where the sheet is actually touching the outermost edge of the mold. Next, vacuum pressure is applied through many tiny holes in the mold. This vacuum pressure pulls the hot plastic sheet material down onto the contours of the mold to form the shape of the part. The hot plastic is left on the mold to cool. Some molds have water channels running through them to help cool the part faster. After cooling, air is blown up through the small vacuum holes to release the plastic part off of the mold. Since the part was first molded out of a sheet of plastic, more than likely the part will have to be trimmed.
This trimming process can be done in several different ways. The molds which would be created for this type of setting would be a family mold which would allow for several parts or forms to be created in a single cycle. The mold would be a family mold which contains several parts which when a single sheet of plastic is heated and formed around the tool would create several usable parts out of one cycle of the machine. This thermoforming process would be the desired process to create the forms or parts which are to be either sewn into or inserted into the wetsuit which will later be filled with a urethane style foam.
Another step in the creation of the suit may be to fill the PVC forms with a foam to help reduce the weight of the suit as well as help enhance the buoyancy of the suit. Any material has the capabilities of being created into a foam. Foam is made by mixing a number of chemicals and adding a “gassing agent” that makes bubbles that make the plastic cellular. The most commonly used foam is urethane foam. This type of foam is man-made and is capable of being created in a wide range of densities. This filling process would be done by an automated system which allows for the resin and the catalyst to be injected into a mold, or in this case the PVC form, in the correct amounts. This type of mixing is known as impingement. Impingement is simply defined as the mixing of the molecules via air born injecting of both the resin and catalyst. For example, a reaction injection molding (RIM) machine could be used for the impingement process.
In RIM, once the material is in the mold, the blowing agents begin to react and cause a foaming procedure to occur. This in turn creates the foam material as desired. Once the tack time, or the time for a specific material to lose the tackiness to touch feeling, the part will be able to be removed from the mold and allowed to further complete the curing process. Those of ordinary skill in the art will realize that the process described herein for processing the present suit is for exemplary purposes only. Any process capable of producing the present suit may be used.
In some embodiments, fins may be covered with a fabric, such as, but not limited to, nylon or Lycra®. This covering may protect the surface of the fin from damage and provide a layer for cosmetic design.
Benefits realized from a body surfing suit made in accordance with the present invention include the following:
(1) Typically, when body-surfing without any suit at all, the surfer needs mobility and freedom of movement before and during the moment of catching a wave. Once the wave is caught, the surfer uses his body muscles to make himself rigid. These same principles need to be followed when designing a suit, and the suit and must allow full flexibility and freedom of movement. The present suit has been designed in that way; in all anatomic areas of movement (arms, legs, waist, trunk, etc) the material has been contoured, tapered, feathered and reduced between functional movable anatomic segments to allow for complete freedom of movement.
(2) The present suit may have smooth 3-D contours which conform to the human anatomy, allowing bending, yet enhancing it with fin-like projections (e.g., similar to the dorsal fin on a marine animal), which provides stability as well as buoyancy.
(3) The present suit may have bilateral fin-like rails that start up near the shoulder region and proceed downward and laterally end at the base of the ribcage. These rails may be longer and extend down into the abdomen, or even all the way down the lateral side of the body, as long as the material is flexible enough. If not, the rails may need to be segmented where they cross functional anatomic segments to provide for freedom of movement. These fins provide stability (to prevent yaw and roll), buoyancy and make the human body more streamlined in the water.
(4) The present suit may have a central chest fin or keel which aids in stability similar to that on a surfboard.
(5) The present suit may have buoyant material enveloped around the entire upper body. In some cases, the buoyant material envelopes the suit circumferentially, like a sea mammal.
(6) The present suit may have upper and lower lateral leg fins, as well as foot fins. In some cases, the leg fins are positioned in the lateral thigh and lateral calf regions, providing stability and more lateral surface area for propulsion when the legs are kicked, increasing the volume of water displaced with each kicking stroke (kind of like swim fins but out to the side of the leg). In some cases, the lateral fins on the feet provide greater surface area for propulsion with each kicking stroke. The lateral positioning of these foot fins allows the surfer to be able to walk without tripping due to the lateral position of the fin. Another feature of the foot fins is that they have small anterior fins/projections (on top of the foot) which act as keel-like stabilizers for directional control similar to a rudder on a boat.
(7) The present suit may have no edges and be smooth in all transition areas to reduce drag. For example, the present suit may have all of the edges (edge detail) where fins attach as smooth and feathered down exactly to the contour of the body so the edges disappear into the suit. As is easily appreciated, it is desirable to reduce drag to the lowest possible tolerance for optimal performance.
(8) The present suit may compliment and enhance the human anatomy for optimal streamlined performance in the water with unimpeded mobility. For example, it may be designed to enhance the thrust and water displacement during the kicking/swimming stroke to maximize propulsion. It may be super slick with seamless (e.g., as seamless as possible) transitions to reduce drag to the bare minimum. The present suit may take a clumsy land animal (human) with all of it's inherent anatomic deficiencies for locomotion in the water, augment it's anatomy without restricting movement, and turn it into a slick marine mammal for catching and riding waves better.
(9) The present suit may have buoyancy up as far forward toward the head as possible, with a decreasing gradient of buoyancy the farther toward the feet you go (buoyancy highest at head and lowest at the feet). Thus, the present suit may put the bulk of buoyant material up near the shoulders or sternum (head region) to limit/reduce the chance of plowing.
In a preferred embodiment, the chest fins of the body surfing suit are designed to avoid interference with a user's swimming stroke. The most common swimming stroke is the “front crawl” swimming stroke. The swimmer starts on the stomach with both arms stretched out to the front and both legs extended to the back. The arm movements of the front crawl provide most of the forward motion. The lateral chest fins, in some embodiments, are curved around the axis of rotation of the shoulder at the top of the chest to avoid interference and impinging of all rotational and functional movement of the arm movements at the shoulder.
The arms alternate from side to side, so while one arm is pulling and pushing under the water, the other arm is recovering above the water. From the initial position, the arm sinks slightly lower and the palm of the hand turns 45 degrees with the thumb side of the palm towards the bottom, to catch the water and prepare for the pull. The pull movement follows a semicircle, with the elbow higher than the hand, and the hand pointing towards the body center and downward. The semicircle ends in front of the chest at the beginning of the ribcage. As the hand pulls past the ribcage for the recovery motion, it is important for the lateral chest fins to not interfere with the hand. The lateral chest fins 110a spread anteriorly downward across the chest over the pectoral region on downward then proceed laterally underneath the arm following the contour of the ribcage where they terminate on the side of the body at the lowest extent of the ribcage. This may be designed so as to not interfere with the hand stroke and to bend accordingly with the user. Furthermore, bending of the chest while performing the pull movement may cause the chest fins to bend downwards into the abdomen. This may interfere with bending or tucking of the body while trying to catch a wave. It may be important for the lateral chest fins 110a to follow a contoured curvature splayed towards the side of the body so that during the pull movement, the lateral chest fins 110a bend sideways away from the abdomen and unloads the force of bending onto the side of the body. In some embodiments, the lateral chest fins 110a provide a long enough surface to keep the user on a wave, with directional control to grab and hold on the wave, with enough buoyant material to float making it easier to catch the wave, and without limiting the tucking or bending motion necessary to safe swimming. It may be critical to be able to tuck or bend when riding waves so that the force of the wave will not be directed to the pelvis or the neck. If the force is distributed to the neck, the neck may be damaged.
The above description of disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to the embodiments will be readily apparent to those skilled in the art; the generic principals defined herein can be applied to other embodiments without departing from spirit or scope of the invention. For example, in some embodiments, body surfing suit 100 is a short suit, meaning that legs 106 end above the surfer's knees. In such an embodiment, there may be only one set of fins 120 located on the legs 106 of suit 100. Thus, the invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principals and novel features disclosed herein.
This application is a continuation of U.S. patent application Ser. No. 15/290,952, filed Oct. 11, 2016, entitled “BODY SURFING SUIT”, which is a continuation of U.S. patent application Ser. No. 14/158,465, filed Jan. 17, 2014 (now U.S. Pat. No. 9,493,218, issued Nov. 15, 2016) entitled “BODY SURFING SUIT”, which is a continuation-in part of U.S. patent application Ser. No. 12/967,945, filed Dec. 14, 2010 (now U.S. Pat. No. 8,662,946, issued Mar. 4, 2014) entitled “BODY SURFING SUIT”, which claims the benefit of U.S. Provisional Patent Application No. 61/288,773, filed Dec. 21, 2009, entitled “BODY SURFING SUIT”, all of which are incorporated herein by reference in their entirety as if set forth in full.
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Number | Date | Country | |
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20190344864 A1 | Nov 2019 | US |
Number | Date | Country | |
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61288773 | Dec 2009 | US |
Number | Date | Country | |
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Parent | 15290952 | Oct 2016 | US |
Child | 16525413 | US | |
Parent | 14158465 | Jan 2014 | US |
Child | 15290952 | US |
Number | Date | Country | |
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Parent | 12967945 | Dec 2010 | US |
Child | 14158465 | US |