Baseball regulatory associations have increasingly been imposing safety regulations to protect the welfare of players. For example, many associations have placed a limit on the allowable ball bat coefficient of restitution (“BBCOR”) of a ball bat, which limits the maximum rebound speed of a batted ball. Pitchers, due to their proximity to batters and their sometimes awkward positioning after a follow-through, are particularly susceptible to being struck by a batted ball.
A helmet for baseball pitchers and fielders includes features to protect a player's head and face from being struck by a batted ball. The helmet optionally includes side protection, which may include cheek, jaw, temple, or chin protection. The helmet also may optionally include a face mask. Other features and advantages appear hereinafter. The features described herein can be used separately or together, or in various combinations of one or more of them.
In the drawings, wherein the same reference number indicates the same element throughout the views:
Various embodiments of the invention will now be described. The following description provides specific details for a thorough understanding and enabling description of these embodiments. One skilled in the art will understand, however, that the invention may be practiced without many of these details. Additionally, some well-known structures or functions may not be shown or described in detail so as to avoid unnecessarily obscuring the relevant description of the various embodiments.
The terminology used in the description presented below is intended to be interpreted in its broadest reasonable manner, even though it is being used in conjunction with a detailed description of certain specific embodiments of the invention. Certain terms may even be emphasized below; however, any terminology intended to be interpreted in any restricted manner will be overtly and specifically defined as such in this detailed description section.
Where the context permits, singular or plural terms may also include the plural or singular term, respectively. Moreover, unless the word “or” is expressly limited to mean only a single item exclusive from the other items in a list of two or more items, then the use of “or” in such a list is to be interpreted as including (a) any single item in the list, (b) all of the items in the list, or (c) any combination of items in the list.
Turning now in detail to the drawings, as shown in
The upper shell 12 may be made of polycarbonate or another suitable material. The upper shell 12 may optionally be insert molded with an inner padding layer of EPS (expanded polystyrene), EPP (expanded polypropylene), EPE (expanded polyethylene), or another suitable energy-absorbing material, or may be injection molded and lined with such a padding. Insert molding generally allows for a lighter and thinner helmet than does a conventional injection molding process. In one embodiment, the upper shell 12 may be a hybrid including injection molded portions and insert molded portions.
The lower protective element 14 may be made of a rigid material such as polycarbonate, or may alternatively be made of a more flexible material such as a soft TPU (thermoplastic polyurethane) or another flexible plastic. The lower protective element 14, like the upper shell 12, may be injection molded and lined with a suitable padding material, or may be insert molded with an inner padding layer of EPS, EPP, EPE, or another suitable energy-absorbing material, or may be a hybrid of both. The lower protective element 14 optionally includes openings 16 for providing ventilation and cooling.
The lower protective element 14 may optionally be conformable to a wearer's face (or close to a wearer's face) to minimize the likelihood it will contact the wearer's shoulder or other body parts during the pitching motion. The use of a relatively soft material, such as a soft TPU, may be beneficial for this purpose, since it is able to flex if it comes into contact with the wearer. In another embodiment, a flexible lower edge may be included on a relatively rigid lower protective element 14 to provide a similar benefit.
The lower protective element 14 may extend to cover a variety of regions of a wearer's head or face. For example, the lower protective element 14 may cover a typical wearer's ears, cheeks, portions of the lower jaw, or chin. The extent of coverage could optionally vary between models or by wearer preference, or could be dictated by particular association regulations.
The lower protective element 14 optionally includes a cutback 18 or cutaway region adjacent a wearer's eyes to provide unobstructed peripheral vision to the wearer. As a pitcher's head typically is turned sideways relative to home plate at some point during the windup, having unobstructed peripheral vision may be important for many pitchers. Such a feature also provides pitchers with better views of bases and base runners, allowing pitchers to effectively execute “pick-off” plays. The lower protective element 14 optionally includes an upper edge 20 inclined from its front edge 22. Such a configuration can provide unobstructed peripheral vision while still covering a substantial portion of the wearer's cheeks and face.
In one embodiment, a face mask may be molded or “overmolded” with the impact liner or padding in the helmet. Doing so would reduce or eliminate the need for separate face mask attachment mechanisms, which would reduce the overall weight of the helmet and provide additional structure to the impact-absorbing material.
An interior liner or one or more layers of comfort padding 115, such as open-cell foam padding, are preferably included on an interior of the shell to provide comfort for a wearer. Comfort padding 115 is preferably included on all of the shell regions that engage a wearer's head but such padding is not required.
Upper components 114, 116 may optionally be included for additional protection to the sides of a wearer's head. The upper components 114, 116 may be encased in fabric and sewn to the comfort padding 115 above the side components 104, 106, or may be attached to or integral with the side components 104, 106 or the front component 102. To increase comfort and reduce weight relative to a full-shell helmet, the helmet 100 preferably does not include a top component.
The shell components may be made of EPS, EPP, EPE, or of another energy-absorbing material. EPS has been found to work particularly well for absorbing energy in baseball and softball impact applications. One or more of the shell components may be covered with, or encased in, a thin sheet of polycarbonate or a similar material to provide strength to the pad structure. In one exemplary embodiment, the front and side shell components are made of EPS that is in-molded with a thin outer layer or exoskeleton of polycarbonate, and may have a total thickness of approximately 18-20 mm.
In one embodiment, the front component 102 is attached to the side components via straps 118 that are in-molded with the front and side components. The straps 118 may be made of a mesh material, such as a polypropylene mesh, or of another suitable material. Connecting the front and side components via straps provides for improved fit, and thus improved and targeted impact attenuation, over a wide range of head sizes. Other shell components may optionally be connected to each other via straps, as well.
Additional straps 120 may be in-molded with the side components 104, 106 and sewn or otherwise attached to the backstrap 108. The backstrap 108 may alternatively be connected to the side components 104, 106 in any other suitable manner. Further straps 122 may be in-molded with the front component 102 or the side components 104, 106 and sewn to the comfort padding 115 to secure the padding to the helmet shell. The comfort padding 115 may alternatively be connected to the shell in any other suitable manner.
The front component 102 and side components 104, 106 optionally include internal grooves or channels 125 that provide fracture zones in the helmet 100. These fracture zones generally are the first regions to fracture or to otherwise exhibit damage upon a significant impact, which provides an indication to a user that the helmet (or the fractured region of the helmet) should be replaced. The channels 125 preferably have relatively sharp or angled corners—as opposed to rounded corners—which result in defined or noticeable fractures upon a significant impact. The inclusion of the channels 125 causes the shell components to better attenuate energy and therefore allows them to be significantly thinner than shells not including channels. It has been found, for example, that shell components including channels 125, as shown in
Energy-absorbing pads 128 may optionally be connected to the interior of the temple guards 110, 112. The temple pads 128 may be detachably connected via hook-and-loop fasteners, snaps, or other suitable connectors, or may otherwise be suitably attached to or integral with the temple guards 128. The temple pads 128 may be made of an energy-absorbing PVC nitrile foam, or an energy-absorbing polyurethane foam, or another suitable energy-absorbing material. The temple pads 128 provide increased energy absorption for protection of the temple region of the wearer's head. The temple pads 128 optionally include an inner layer of a softer, comfort padding to provide comfort for the wearer.
In any of the above described embodiments, an energy-absorbing material, such as EPS, EPP, EPE, or another suitable material, may be included in a variety of helmet regions. For example, such a material may be molded with or otherwise attached or bonded to portions of the inner shell covering various portions of a wearer, such as the top of the head, the sides of the head, the rear of the head, portions of the neck, the ears, the cheeks, portions of the lower jaw, or the chin. This energy-absorbing material dissipates energy when the helmet is struck with a batted or thrown ball, thus minimizing the amount of impact force absorbed by the wearer.
The energy absorbing material may optionally be covered with or encased in a sheet of polycarbonate or a similar material to provide strength to the pad structure. One or more fitting or comfort foams may also be included in the pad structure, preferably between the energy foam or other energy-absorbing material and the wearer, to provide a more comfortable fit for the wearer. In some embodiments, certain interior regions of the helmet may include pads having only comfort foam, such as rear or top regions of the helmet less likely to be struck by a batted ball, for example.
While the helmets described herein are primarily intended to be worn by baseball pitchers or fielders, batters and catchers could conceivably also where one or more of the helmets. Players in other sports, such as lacrosse, cycling, hockey, and so forth, may also wear the helmets.
Any of the above-described embodiments may be used alone or in combination with one another. Furthermore, a pitcher's helmet may include additional features not described herein. While several embodiments have been shown and described, various changes and substitutions may of course be made, without departing from the spirit and scope of the invention. The invention, therefore, should not be limited, except by any claims and their equivalents.
This application claims priority to U.S. Provisional Patent Application No. 61/444,032, filed Feb. 17, 2011, and U.S. Provisional Patent Application No. 61/331,362, filed May 4, 2010, both of which are incorporated herein by reference.
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