HELMET SHROUD ASSEMBLY

Abstract

The shroud assembly is configured for attachment to the front of a helmet, or other headgear. The shroud assembly includes an interface for the removable attachment of an accessory mount used to couple an electronic or optoelectronic imaging device to the headgear. An example shroud assembly comprises a polymer frame having a shape that matches a contour of the headgear and an insert formed of a metal or metal alloy. The polymer frame is molded around the insert. The polymer frame and the insert together form an interface for the removable attachment of an accessory mount. The interface includes an upper recess configured to act as a bearing surface for an engaging latch member of the accessory mount, and a lower recess configured to act as a bearing surface for another engaging latch member of the accessory mount.

Claims

1. A shroud assembly comprising: a polymer frame having a shape that matches a contour of a headgear; an insert formed of a metal or metal alloy; wherein: the polymer frame is molded around the insert, the polymer frame and the insert together form an interface for the removable attachment of an accessory mount, the interface includes an upper recess and a lower recess, the upper recess is configured to act as a bearing surface for an engaging latch member of the accessory mount and the lower recess is configured to act as a bearing surface for another engaging latch member of the accessory mount.

2. The shroud assembly of claim 1, wherein the interface includes a first sidewall and a second sidewall that define opposite sides of the interface, the first and second sidewalls are spaced a sufficient distance apart to provide an interference fit between the accessory mount and the first and second sidewalls.

3. The shroud assembly of claim 2, wherein the first and second sidewalls extend vertically and are positioned between the upper recess and the lower recess.

4. The shroud assembly of claim 1, wherein the insert comprises a top crossmember and a bottom crossmember.

5. The shroud assembly of claim 4, wherein the top crossmember and bottom crossmember are horizontally oriented and structurally connected by a pair of vertically aligned side posts, collectively delineating the boundaries of a central opening.

6. A shroud assembly comprising: a polymer frame having a shape that matches a contour of a headgear; an insert formed of a metal or metal alloy; wherein: the polymer frame is molded around the insert, the polymer frame and the insert together form an interface for the removable attachment of an accessory mount, the interface includes an upper recess and a lower recess, the upper recess and the lower recess each include an interior facing sidewall that is an exposed portion of the insert not covered by the polymer frame.

7. The shroud assembly of claim 6, wherein the interior facing sidewall of the upper recess is configured to act as a bearing surface for an engaging latch member of the accessory mount and the interior facing sidewall of the lower recess is configured to act as a bearing surface for another engaging latch member of the accessory mount.

8. The shroud assembly of claim 7, wherein the interface includes a first sidewall and a second sidewall that define opposite sides of the interface, the first and second sidewalls are spaced a sufficient distance apart to provide an interference fit between the accessory mount and the first and second sidewalls.

9. The shroud assembly of claim 8, wherein the first and second sidewalls extend vertically and are positioned between the upper recess and the lower recess.

10. The shroud assembly of claim 6, wherein the insert comprises a top crossmember and a bottom crossmember.

11. The shroud assembly of claim 10, wherein the interior facing sidewall of the upper recess is a portion of the top crossmember and the interior facing sidewall of the lower recess is a portion of the bottom crossmember.

12. The shroud assembly of claim 11, wherein the top crossmember and bottom crossmember are horizontally oriented and structurally connected by a pair of vertically aligned side posts, collectively delineating the boundaries of a central opening.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1 is an isometric view of a shroud assembly according to the principles of the present disclosure.

[0010] FIG. 2 is an isometric view of the shroud assembly shown in FIG. 1, wherein the insert of the shroud assembly is shown in broken lines.

[0011] FIG. 3 is another isometric of the shroud assembly shown in FIG. 2.

[0012] FIG. 4 is a front elevational view of the shroud assembly shown in FIG. 2.

[0013] FIG. 5 is a back elevational view of the shroud assembly shown in FIG. 2.

[0014] FIG. 6 is an isometric view of the insert shown in FIG. 2.

[0015] FIG. 7 is another isometric view of the insert shown in FIG. 6.

[0016] FIG. 8 is a front elevational view of the insert shown in FIG. 6.

[0017] FIG. 9 is a back elevational view of the insert shown in FIG. 6.

[0018] FIG. 10 is an isometric view of the shroud assembly, shown in FIG. 1, secured to the front of a helmet, with an accessory mount attached to the shroud assembly.

[0019] FIG. 11 is an isometric view of the shroud assembly and attached accessory mount shown in FIG. 10, wherein the helmet has been omitted.

[0020] FIG. 12 is another isometric view of the shroud assembly and attached accessory mount shown in FIG. 11.

[0021] FIG. 13 is a rear elevational view of the shroud assembly and attached accessory mount shown in FIG. 11.

[0022] FIG. 14 is a side cutaway view of the shroud assembly and attached accessory mount taken along lines 14-14 shown in FIG. 13.

[0023] Like reference numerals refer to corresponding parts throughout the several views of the drawings.

DETAILED DESCRIPTION

[0024] FIGS. 1-5 illustrate an example shroud assembly 100 according to the principles of the present disclosure. As shown in FIG. 10, the shroud assembly 100 is configured for attachment to the front of a helmet 102 and includes an interface 108 for the removable attachment of an accessory mount 104 used to couple a night vision device to the helmet 102. While the shroud assembly 100 is described primarily by way of reference to use with night vision devices, the present shroud assembly 100 can be used to couple monocular and binocular devices, including optical viewing devices, thermal cameras, or other electronic or optoelectronic imaging devices to the helmet 102.

[0025] Example accessory mounts that can be attached to the interface 108 of the shroud assembly 100 are the Wilcox Industries Corp. G11 and G24 mounts, well known to those of ordinary skill in the art. However, the shroud assembly 100 could be adapted for use with other accessory mounts by providing an interface 108 which has retention features complimentary with a desired accessory mount.

[0026] As shown in FIGS. 2-5, the shroud assembly 100 comprises a polymer frame 110 and a metal or metal alloy insert 112, indicated by broken lines. The shroud assembly 100 is formed by overmolding the frame 110 to the insert 112, thereby making the shroud assembly 100 a unitary piece. This results in a shroud assembly 100 having a superior strength-to-weight ratio when compared to prior art shrouds. More specifically, in some implementations, the shroud assembly 100 may achieve a weight reduction of more than 25% compared to prior art shrouds. The frame 110 has a generally concave back surface 114 which is shaped to generally conform to the shape of a selected helmet, or other headgear. The frame 110 is also flexible such that the shroud assembly 100 can adapt to the exterior surface of the selected helmet to which the shroud assembly 100 is coupled. While the frame 110 of the shroud assembly 100 is flexible, the insert 112 is a rigid stiffening element that provides additional strength and rigidity to the interface 108.

[0027] The frame 110 is formed of a nylon material that is overmolded around the insert 112, leaving portions of the insert 112 uncovered. The frame 110 is of a generally triangular construction and includes an opening 128 in each of the three corners. The three openings 128 in the frame 110 are arranged so the shroud assembly 100 can be attached to a helmet having a three-hole pattern, such as the standard MARSOC/WARCOM three-hole pattern. Each opening 128 is a slot configured to receive a fastener (e.g., a bolt or other suitable anchor) used to secure the shroud assembly 100 to the selected helmet.

[0028] While the shroud assembly 110 is configured for attachment to a helmet having the standard three-hole pattern, the shroud assembly 100 can also be secured to a helmet 102 using an adhesive (e.g., an epoxy adhesive, a double-sided acrylic foam tape, or other suitable adhesive). Accordingly, the shroud assembly 100 may also include plugs 130 used to fill each of the openings 128 in the frame 110. Each plug 130 is configured to be snap-fit within a corresponding opening 128, thereby sealing it. When using an adhesive to secure the shroud assembly 100 to a selected helmet 102, cavities 134 in the back surface 114 of the frame 110 are filled with the adhesive. The shroud assembly 100 is then clamped to the helmet 102 until the adhesive cures. It should be noted that each plug 130 also includes a cavity 136 that can be filed with adhesive used to secure the shroud assembly 100 to the helmet 102 (see, e.g., FIG. 5).

[0029] The insert 112 is preferably formed by stamping, although metal injection molding and additive manufacturing (i.e., 3D printing) are also contemplated. The insert 112 is preferably formed of a stainless steel. The preferred implementation of the insert 112 is a unitary piece. However, in other implementations, the insert 112 could be two or more pieces.

[0030] As shown best in FIGS. 6-9, the insert 112 comprises a top crossmember 112a, a bottom crossmember 112b, and two side posts (112c, 112d) interconnecting the crossmembers (112a, 112b). The top crossmember 112a and bottom crossmember 112b are horizontally oriented and structurally connected by the vertically aligned side posts (112c, 112d), collectively delineating the boundaries of a central opening 113. In some implementations, each side post (112c, 112d) may have an arcuate length. As seen in FIGS. 2 and 6, the top crossmember 112a and bottom crossmember 112b are positioned in an offset manner, situated forward of the side posts (112c, 112d).

[0031] The interface 108 of the shroud assembly 100 includes retention features, such as an upper recess 116 and a lower recess 118, for removably engaging latch members (106a, 106b) found on a suitably configured accessory mount 104 (e.g., a G24 mount). Each recess 116, 118 is formed by an overhang 120, 122. Each overhang 120, 122 is a portion of the insert 112 that is partially overmolded by the frame 110. More particularly, each overhang 120, 122 includes an interior facing sidewall 124, 126 that is an exposed portion (i.e., not covered by the polymer frame 110) of the upper crossmember 112a or bottom crossmember 112b of the metal insert 112 (see, e.g., FIG. 5). In this way, the interface 108 serves as a ridged attachment point for the selected accessory mount 104. In the preferred embodiment, the interior facing sidewall 124, 126 of each overhang 120, 122 is configured to act as a bearing surface for an engaging latch member (106a, 106b) of the selected accessory mount 104 (see, e.g., FIGS. 12 and 13).

[0032] The interface 108 of the shroud assembly 100 also includes a pair of lateral sidewalls 132 on opposite lateral sides thereof. The lateral sidewalls 132 are an integral portion of the frame 110 and are spaced apart a distance that provides a snug, interference fit between the lateral sidewalls 132 and the sides of an attached accessory mount 104. In this way, axial rotation of the attached accessory mount 104 is minimized or prevented.

[0033] The foregoing description of the invention is intended to be illustrative; it is not intended to be exhaustive or to limit the claims to the precise forms disclosed. Those skilled in the relevant art can appreciate that many modifications and variations are possible in light of the foregoing description and associated drawings.

[0034] Reference throughout this specification to an embodiment or implementation or words of similar import means that a particular described feature, structure, or characteristic is included in at least one embodiment of the present invention. Thus, the phrase in some implementations or a phrase of similar import in various places throughout this specification does not necessarily refer to the same embodiment.

[0035] The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided for a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that embodiments of the invention can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations may not be shown or described in detail.