The present disclosure relates generally to load dispersal systems, and more particularly, to an apparatus for shifting weight from a vest or other torso-covering garment to a belt structure supported at the waist. Such transfer shifts a portion of a load being carried by a wearer from the shoulders to the waist. Dispersing the load reduces fatigue during prolonged use. A multiplicity of such load dispersal devices may be used to enhance the load dispersal benefit if desired.
In many environments, relatively heavy vests or other torso-covering garments may be used. By way of example only, and not limitation, such garments may be used by outdoors enthusiasts, law enforcement officers or military personnel. The mass of such garments may be increased by the insertion of protective plate structures, by filling pockets, and/or by the attachment of external pouches, ammunition, survival equipment and the like to surface webbing structures which are present on many such garments. By way of example only, external equipment may be attached to surface webbing forming part of a so called “MOLLE” system as will be well known to those of skill in the art. As the mass of the vest or other torso-covering garment is increased, an increased load is placed on the wearer's shoulders. This concentration of load may lead to fatigue during prolonged use or during periods of substantial exertion.
In light of the above, it would be desirable to provide a system to reduce the load concentration at a wearer's shoulders so that the load may be distributed to other muscle groups. By spreading the load to different muscle groups, fatigue may be reduced.
In one exemplary construction, the present disclosure provides advantages and alternatives over the prior art by providing a two piece assembly adapted to transfer a portion of a load between a torso-covering garment and a belt structure at the user's waist. Such transfer acts to distribute the load between the user's shoulders to the user's hips and legs. The load is thereby distributed more evenly among muscle groups and fatigue may be reduced over periods of prolonged use.
In accordance with one exemplary aspect, the present disclosure provides a load transfer apparatus adapted to transfer at least a portion of a load from a torso-covering garment to a belt structure supported at a user's waist so as to reduce stress on the user's upper body. The load transfer apparatus includes a female body with an open ended interior passageway defining a travel path across the female body. The female body includes a deformable upper wall segment of flexible, resilient character bordering the interior passageway with a locking tooth projecting away from the upper wall into the interior passageway. A liftable outwardly projecting tab is operatively connected to the deformable upper wall segment such that upon lifting up on the tab, the deformable upper wall segment flexes upwardly and the locking tooth is elevated from an unbiased first position to a raised second position. Upon release of the tab, the deformable upper wall segment rebounds to its initial condition and the locking tooth returns to the unbiased first position. The female body is adapted to releasably engage webbing loops disposed at the surface of the torso-covering garment and/or the belt structure. The load transfer apparatus further includes an insertable post adapted for insertion into the interior passageway. The insertable post includes a plurality of cutouts disposed in spaced-apart, stacked relation along at least one lateral edge. The thickness dimension of the insertable post is such that the insertable post can pass beneath the locking tooth when the locking tooth is in the raised second position. The cutouts are sized and positioned to receive the locking tooth when the insertable post is in inserted relation within the interior passageway and the locking tooth is lowered to the unbiased first position. The insertable post may be adapted to releasably engage webbing loops disposed at the surface of the torso-covering garment and/or the belt structure.
Other exemplary features and advantages of the disclosure will become apparent to those of skill in the art upon review of the following detailed description, claims and drawings.
Before exemplary embodiments are explained in detail, it is to be understood that the disclosure is in no way limited in its application or construction to the details and the arrangements of the components set forth in the following description or illustrated in the drawings. Rather, a load transfer apparatus in accordance with the present disclosure is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology and terminology used herein are for purposes of description only and should not be regarded as limiting. The use herein of terms such as “including” and “comprising” and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof.
Reference will now be made to the drawings, wherein to the extent possible, like elements are designated by like reference numerals throughout the various views. As best seen through joint reference to
In the illustrated, exemplary arrangement, the vest 12 includes one or more vest webbings 16 disposed at the surface of the vest 12. As shown, the vest webbings 16 may include connection elements 18 in the form of connective stitching, mechanical attachments, adhesives or the like attaching the vest webbings 16 to the surface of the vest 12. The connection elements 18 may be disposed periodically along the length of the vest webbings to form series of vest loops 20 between the connection elements 18 such that the loops 20 are adapted to matedly receive male elements in pass-through relation. By way of example only and not limitation, the vest webbings 16 may be formed from segments of elastomeric or inelastic fabric, although other materials as may be desired may likewise be used. If desired, the vest webbings 16 may be in the form of a so called “MOLLE” surface attachment system adapted for attachment of equipment as will be well known to those of skill in the art. However, other arrangements may likewise be used.
In the exemplary arrangement, the belt 14 includes one or more belt webbings 22. As shown, the belt webbings 22 may include connection elements 24 in the form of connective stitching, mechanical attachments, adhesives or the like attaching the belt webbings 22 to the surface of the belt 14. The connection elements 24 may be disposed periodically in spaced relation along the length of the belt webbings 22 to form series of loops 26 between the connection elements 24 such that the loops 26 are adapted to matedly receive male elements in pass-through relation. By way of example only and not limitation, the belt webbings 22 may be formed from segments of elastomeric or inelastic fabric, although other materials as may be desired may likewise be used.
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In the illustrated exemplary embodiment, a locking tooth 34 is disposed at the interior of the interior passageway 32. The locking tooth 34 may be molded integrally with the upper wall 36 of the female body 30 overlying the interior passageway 32 so as to project downwardly from a lateral edge of the upper wall into the interior passageway 32. A thumb tab 38 may project upwardly and away from the lateral edge of the upper wall 36 in adjacent relation to the locking tooth 34. According to one exemplary practice, the thumb tab 38 may be integrally molded with the upper wall 36 during formation of the female body. However, the thumb tab 38 also may be may be attached separately if desired.
In operation, the thumb tab acts on the upper wall 36 as a lever such that raising the thumb tab 38 causes the upper wall 36 to flex in a resilient manner and resulting in the locking tooth 34 being raised from its normal unbiased position within the interior passageway 32. Thereafter, upon release of the thumb tab 38, the upper wall rebounds to its original position and the locking tooth 34 is lowered back to its normal unbiased position within the interior passageway 32.
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The post 50 preferably has an effective width and thickness corresponding substantially to the interior dimensions of the interior passageway 32 when the upper wall is in the unbiased condition without the thumb tab in the lifted condition. As illustrated, in the exemplary embodiment the post 50 includes an arrangement of lateral cutouts 56 disposed in spaced-apart series along one side of the post 50. The position and depth of the lateral cutouts 56 are set such that the locking tooth 34 will project into the lateral cutouts 56 after the post 50 is inserted into the interior passageway 32.
In operation, the post 50 is oriented generally transverse to the female body 30 and the distal end of the post 50 is inserted axially into the interior passageway 32 along the defined travel path. This insertion may take place either before or after the female body 30 and the post 50 are connected to their respective webbing supports. However, it may be desirable for at least one (and preferably both) of the components to be connected to its webbing support prior to insertion. During the insertion process, a user may insert the post 50 along the defined travel path until the desired degree of insertion has occurred. In this regard, the front edge of the post 50 may act on an angled or curved surface of the locking tooth 34 facing towards the post 50 to facilitate a sliding insertion even with the locking tooth 34 in the lowered position. Once the post 50 is in place, the locking tooth 34 will engage an opposing aligned cutout 56 thereby locking the post 50 at a defined position within the female body 30. Thereafter, the insertion may be reversed or adjusted as needed by simply lifting the thumb tab 38 so as to raise the locking tooth 34 away from the engaged cutout 56 and extracting or repositioning the post 50.
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As will be appreciated, while a single load transfer apparatus 10 is illustrated, a multiplicity of such devices may be used at positions around a user's waist. By way of example only, and not limitation, a closely spaced arrangement at the user's back may be particularly desirable in some circumstances to provide support. Moreover, it will be understood that the relative orientations of the post 50 and the female body 30 can be reversed if desired such that the post segment engages the vest webbing and the body segment engages the belt webbing.
In the embodiment of
As shown, the lateral cut-outs 156 are positioned in offset staggered relation along the opposing lateral sides of the post 150. That is, the cut-outs on one side are in offset relation to the cut-outs on the other side. As will be appreciated, such a construction provides enhanced adjustability through manipulation of the post orientation relative to the female bodies 130 to engage the locking teeth with the desired cut-outs on one side or the other.
Of course, variations and modifications of the foregoing are within the scope of the present invention. All dimensions are merely exemplary. Thus, it is to be understood that the invention disclosed and defined herein extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present invention.
This nonprovisional application claims the benefit of, and priority from U.S. Provisional Application 61/521,032 filed Aug. 8, 2011. The contents of such Provisional Application are hereby incorporated by reference in their entirety as if fully set forth herein.
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/US12/49431 | 8/3/2012 | WO | 00 | 2/7/2014 |
Number | Date | Country | |
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61521032 | Aug 2011 | US |