The following invention relates to clips to securely retain objects in place and to release the clips without the need for tools or other instruments.
A user might wear protective head gear that includes a face mask attached to the head gear. For example, head gear designed for various sporting events (such as football helmets, catcher's masks in baseball, or hockey masks) may have a face mask that covers and protects the user's face. Head gear designed for use by police officers, fire fighters, or armed forces personnel may also include face masks. The body of such head gear is typically made of a hard, solid material (such as plastic) and covers the top, sides, and back of the user's head. Typically, the body has an opening adjacent to the user's neck that allows the user to take the head gear on and off. The body may also have another opening that exposes the user's face, which may be at least partially covered by a face mask made of wires or bars. Face masks secured to head gear may present several problems.
First, face masks are typically secured to the body of head gear with a strap, clip, or other mechanical fastener. Such mechanical fasteners may be prone to failure if the user sustains a blow to the head that is received by the head gear. Thus, the mechanical fastener may break, which may cause the face mask to separate from the body of the head gear, subjecting the user to injury.
Second, it may not be easy or safe to disable known mechanical fasteners in order to remove the face mask in the case of an emergency. In most instances, the user may remove his or her head gear simply by grasping and pulling the body from the user's head. But in other instances, it may not be possible to remove the head gear as such. For example, in an emergency when a user is injured it may be necessary to keep the user's head and neck stabilized. Thus, it may not be safe to grasp and pull the body of the head gear from the user's head.
Systems have been developed to allow face masks to be removed from the head gear, thus avoiding the need to pull the body of the head gear from the user's head. In some systems, a mechanical fastener (such as a strap) is provided that loops around a portion of the face mask and is fastened to the body of the head gear with screws. To remove the face mask, a screw driver or other tool must be used to unfasten the screw, or a knife must be used to cut the strap. But such systems are problematic in that it takes time to unfasten the screws or cut the straps. Such systems also require tools (such as screw drivers, knives, or scissors) that might be difficult to locate or to use in an emergency situation. Finally, such systems require application of force (for example, unfastening a screw or cutting through a strap) that may cause the user's head to move, which is undesirable if the user's head must be stabilized.
Thus, there is a need for a system that may be used to quickly and easily remove a face mask from the head gear worn by a user.
Specifically, there is a need to reduce the amount of time it takes to remove a face mask from the head gear.
There is a need to reduce the number of tools required to remove a face mask from the head gear.
There is also a need to reduce the number of movements required to remove a face mask from the head gear.
There is also a need to provide systems for securing face masks that are resistant against forces that impact the head gear.
Certain embodiments provide a clip for securing a face mask to the body of an article of head gear, and for releasing the face mask without the need for any special tools or equipment. In certain embodiments, the clip comprises a base and a retaining member that is pivotably coupled to the base. When the retaining member is engaged with the base, a pair of engaging members on the base prevent the retaining member from pivoting open, thus securing the face mask within the clip. One example of an engaging member is an overhang that extends into the interior space formed by the sidewalls of the base. To disengage the retaining member (and thereby remove the face mask from the clip), a user may squeeze or flex inward a portion of the base, which causes the retaining member to disengage and pivot open.
Certain embodiments thus reduce the amount of time it takes to remove a face mask from the head gear. Additionally, unlike in known systems that require special tools to remove a face mask, embodiments described herein may only require a user's fingers to squeeze or flex the base, thus releasing the face mask from the clip.
A full and enabling disclosure including the best mode of practicing the appended claims and directed to one of ordinary skill in the art is set forth more particularly in the remainder of the specification. The specification makes reference to the following appended figures, in which use of like reference numerals in different features is intended to illustrate like or analogous components.
Furthermore, although the embodiments described herein are for use with head gear 12, the same concepts could be used in other applications where it is desired to retain a first object on a second object, and to quickly and easily remove the first object from the second. For example, embodiments described herein could be used to retain wires, cables, shelving, or drawers to surfaces such as a wall or a piece of furniture. Thus, embodiments generally encompass any application where is desired to retain, and quickly and easily remove, a first object and a second object.
As shown in
A detailed view of a retaining member 20 is shown in
To engage the retaining member 20, the retaining member 20 pivots towards the base 40. The prongs 26 move between the sidewalls 48 of the base 40. As the extensions 28 of the prongs 26 contact the sidewalls 48, the prongs 26 squeeze together. The prongs 26 continue to squeeze together until the extensions 28 move below the overhang 50, at which point the sidewalls 48 stop squeezing the prongs 26 together. The prongs 26 expand and return to their original position. When the prongs 26 expand, the extensions 28 fit underneath the overhang 50 of the sidewalls 48, as shown in
In certain embodiments the inner edges of the body 30 of retaining member 20 and the curved edge 54 of the base 40 are generally curved. Thus, the receiving aperture 68 has a similar shape to that of the round wires that comprise the face mask 16. Alternatively, if the face mask 16 were made of wires having a non-circular shape (such as square), then the body 30 of retaining member 20 and/or the curved edge 54 of base 40 may be provided with a corresponding shape (thus, the body 30 and/or curved edge 54 may be square, for example). As shown in
The retaining member 20 shown in
Thus, embodiments of clips 10 described herein may be released by flexing a portion of the release members 56 inward. (Specifically, the portion of the release member 56 distal the end wall 46 may be flexed inward.) A user 100 (or another person, such as a care-taker who is tending to the user 100) may flex the release members 56 simply by squeezing them with their fingers. If desired, the release members 56 may be provided with a curved upper portion 62 to make it easier to grip and squeeze the release members 56. In other embodiments, the upper portion 62 is not curved, but is merely elevated above the sidewall 48 such that the upper portion 62 is easier to grip. Thus, no special tools or equipment are needed to release the clips 10. Additionally, the clips 10 may be released quickly (by squeezing the release members 56) and with minimal movement that might be passed along to the user 100.
Additional speed (and ease of movement) in releasing the clip 10 may be provided by member 32, which may optionally be provided on the body 30 of retaining member 20. When the retaining member 20 is engaged, the member 32 contacts and applies force to the face mask 16. When the retaining member 20 is disengaged, the force applied by the member 32 pushes the retaining member 20 open, such that the retaining member 20 opens more quickly. Thus, additional benefits may be provided by a member 32 in releasing the clip 10. In the embodiments shown in
Embodiments described herein also resist damaging forces that may impact the head gear 12 and cause the retaining member 20 to become disengaged from the base 40. For example, side arms 22 may be provided on the retaining member 20. The step 24 of side arm 22 may engage with the corresponding step 52 on the overhang 50. If a force impacts laterally on the clip 10 and strikes a side arm 22, the side arm 22 acts as a barrier such that the force does not impact the prong 26 (possibly disengaging the retaining member 20). The corresponding steps 24, 52 of the side arm 22 and overhang 50 engage such that the side arm 22 does not flex and strike the prong 26. Additionally, the corresponding steps 24, 52 provide resistance against any torsion acting on the clip 10. As another example, in certain embodiments the retaining member 20 may not be disengaged unless both of the release members 56 (on opposite sides of the base 40) are flexed. Thus, if a force impacts laterally on the clip 10 and strikes one release member 56 (such that the release member 56 flexes), the retaining member 20 will not be disengaged, because the opposite release member 56 is not impacted by force and is not flexed.
Another clip 80, including base 82 and retaining member 86, is shown in
The retaining member 20 may be coupled to the base 40 in any number of ways. In one embodiment the retaining member 20 and the base 40 are injection molded, using the same mold, such that the retaining member 20 and the base 40 may be formed in one injection molding process. Thus, the coupling pegs 36 provided on the lower portion 34 of retaining member 20 are molded within apertures 66 of the coupling tabs 64 on the base 40. In another embodiment, the retaining member 20 and the base 40 are formed separately and may be coupled with a pin, peg, post, or other structure received through apertures 66 of the coupling tabs 64. Another embodiment of a base 70 is illustrated in
In some instances the retaining member 20 may become damaged and need to be replaced. In the embodiments in
As shown in
The components of the clips 10 descried herein (including either of the retaining member 20 or base 40) may be constructed from a variety of materials, including but not limited to polyurethane, nylon, acetal, or an impact modified polyacetal resin, such as TPOM. The use of such lightweight materials reduce the weight of the clip 10. If desired, the material may be reinforced with fibers, and may include additional additives such as fire retardants. The retaining member 20 and base 40 may be made from the same material, or different materials. As discussed above, the retaining member 20 and base 40 may be manufactured using injection molding (either in one molding step, or separate molding steps to form each component). In addition to injection molding, the components of the clip 10 may be machined with a lathe or other cutting tool.
The foregoing is provided for purposes of illustration and disclosure of embodiments of the invention. It will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to such embodiments. Accordingly, it should be understood that the present disclosure has been presented for purposes of example rather than limitation, and does not preclude inclusion of such modifications, variations and/or additions to the present subject matter as would be readily apparent to one of ordinary skill in the art.