U.S. patent application number 14/481298 was filed with the patent office on 2014-12-25 for helmet mounting systems.
The applicant listed for this patent is Wilcox Industries Corp.. Invention is credited to David G. Kent, Gary M. Lemire, James W. Teetzel.
Application Number | 20140373423 14/481298 |
Document ID | / |
Family ID | 38049419 |
Filed Date | 2014-12-25 |
United States Patent
Application |
20140373423 |
Kind Code |
A1 |
Teetzel; James W. ; et
al. |
December 25, 2014 |
HELMET MOUNTING SYSTEMS
Abstract
Pivoting helmet mounts for an optical device are provided. In
one aspect, a breakaway connector which is selectively configurable
between breakaway and nonbreakaway configurations is provided. In a
further aspect, a strap mount system for securing the helmet mount
to the helmet employs a rotating ratchet assembly to adjust tension
in the strap. In another aspect, a helmet mount for an optical
device comprises a track assembly attached to a helmet to allow
stowing of the optical device in a further retracted position. The
track mount system may further include electrical connectors for
attaching a power supply and an electronic device. In another
aspect, a mounting bracket allows helmet-mounted optics to be
shared with a weapon accessory mount. In a further aspect, a
optical sighting device for a weapon combines a reflex sight a
night vision goggle to allow targeting at night or in other
low-light conditions.
Inventors: |
Teetzel; James W.;
(Portsmouth, NH) ; Lemire; Gary M.; (Lee, NH)
; Kent; David G.; (Morehead City, VA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Wilcox Industries Corp. |
Newington |
NH |
US |
|
|
Family ID: |
38049419 |
Appl. No.: |
14/481298 |
Filed: |
September 9, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11804813 |
May 21, 2007 |
8826463 |
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14481298 |
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|
10959906 |
Oct 6, 2004 |
7219370 |
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11804813 |
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60509136 |
Oct 6, 2003 |
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Current U.S.
Class: |
42/118 ;
42/90 |
Current CPC
Class: |
F41C 27/00 20130101;
F41H 1/04 20130101; A42B 3/04 20130101; A42B 3/042 20130101; F41G
1/30 20130101; G02B 23/125 20130101; F41G 1/34 20130101; F41G 1/00
20130101; F41G 11/003 20130101 |
Class at
Publication: |
42/118 ;
42/90 |
International
Class: |
F41G 1/34 20060101
F41G001/34; F41G 1/30 20060101 F41G001/30; F41C 27/00 20060101
F41C027/00; F41G 1/00 20060101 F41G001/00 |
Claims
1-20. (canceled)
21. A mounting bracket for mounting a night vision device to a
weapon, comprising: a first attachment member including a first
fastener configured to removably attach to a rail interface of the
weapon; and a second attachment member attached to the first
attachment member, the second attachment member including a second
fastener configured to removably attach to a coupling member of the
night vision device and support the night vision device in
alignment with a barrel of the weapon.
22. The mounting bracket of claim 21, wherein the first fastener is
an accessory rail clamp.
23. The mounting bracket of claim 22, wherein the rail clamp
includes a floating rail grabber and a threaded fastener rotatably
attached to the floating rail grabber, the threaded fastener
configured to selectively move the floating rail grabber toward and
away from the rail interface responsive to rotation of the threaded
fastener in a first direction and a second direction opposite the
first direction, respectively.
24. The mounting bracket of claim 23, further comprising a locator
pin attached to the first attachment member for selectively
engaging a recoil groove in the rail interface.
25. The mounting bracket of claim 22, wherein the accessory rail
claim is configured to removably attach to a Picatinny accessory
rail.
26. The mounting bracket of claim 21, wherein the second fastener
includes a generally trapezoidal receptacle removably and slidably
receiving a complimentary mounting foot on the night vision
device.
27. The mounting bracket of claim 26, wherein the trapezoidal
receptacle includes a resilient locking member configured to
removably engage a complementary recess of the mounting foot.
28. The mounting bracket of claim 27, further comprising a spring
resiliently biasing the locking member towards the complementary
recess.
29. The mounting bracket of claim 28, further comprising an
unlocking lever attached to the locking member, said unlocking
lever manually actuatable to move the locking member from the
complementary recess.
30. The mounting bracket of claim 26, wherein the trapezoidal
receptacle has a first end and a second end opposite the first end,
the second and wider than the first and, wherein the second and is
disposed away from the operator of the weapon when the mounting
bracket is attached to the rail interface of the weapon.
31. A sighting system, comprising: a mounting bracket comprising a
first attachment member including a first fastener configured to
removably attach to a rail interface of a weapon, and a second
attachment member attached to the first attachment member, the
second attachment member including a second fastener configured to
removably attach to a coupling member of a night vision device and
support the night vision device in alignment with a barrel of the
weapon; and a reflex sight removably mountable to the weapon for
projecting a target designator for use in aiming the weapon, the
target designator viewable along a sighting axis; and a night
vision device removably mountable to the weapon in optical
alignment with said reflex sight for generating a human-viewable
image in low light conditions of a target scene taken along the
sighting axis, wherein said target designator is superimposed on
said human-viewable image.
32. The sighting system of claim 31, wherein the first fastener is
an accessory rail clamp.
33. The sighting system of claim 32, wherein the rail clamp
includes a floating rail grabber and a threaded fastener rotatably
attached to the floating rail grabber, the threaded fastener
configured to selectively move the floating rail grabber toward and
away from the rail interface responsive to rotation of the threaded
fastener in a first direction and a second direction opposite the
first direction, respectively.
34. The sighting system of claim 33, further comprising a locator
pin attached to the first attachment member for selectively
engaging a recoil groove in the rail interface.
35. The sighting system of claim 32, wherein the accessory rail
claim is configured to removably attach to a Picatinny accessory
rail.
36. The sighting system of claim 31, wherein the second fastener
includes a generally trapezoidal receptacle removably and slidably
receiving a complimentary mounting foot on the night vision
device.
37. The sighting system of claim 36, wherein the trapezoidal
receptacle includes a resilient locking member configured to
removably engage a complementary recess of the mounting foot.
38. The sighting system of claim 37, further comprising a spring
resiliently biasing the locking member towards the complementary
recess and an unlocking lever attached to the locking member, said
unlocking lever manually actuatable to move the locking member from
the complementary recess.
39. The sighting system of claim 36, wherein the trapezoidal
receptacle has a first end and a second end opposite the first end,
the second and wider than the first and, wherein the second and is
disposed away from the operator of the weapon when the mounting
bracket is attached to the rail interface of the weapon.
40. The sighting system of claim 31, further comprising a pivoting
helmet mount configured to removably attach the night vision device
to a helmet, wherein said mounting bracket is configured to be
interchangeably and alternatively mounted to said pivoting helmet
mount and said mounting bracket.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority as a divisional application
under 35 U.S.C. .sctn. 120 to U.S. patent application Ser. No.
11/804,813 filed May 21, 2007, now U.S. Pat. No. 8,826,463, which
in turn claims priority as a divisional application under 35 U.S.C.
.sctn. 120 to U.S. patent application Ser. No. 10/959,906, filed
Oct. 6, 2004, now U.S. Pat. No. 7,219,370, which properly claimed
the benefit under 35 U.S.C. .sctn. 119(e) of U.S. provisional
application Ser. No. 60/509,136 filed Oct. 6, 2003. Each of the
aforementioned applications is incorporated by reference in its
entirety.
FIELD OF THE INVENTION
[0002] The present invention relates to helmet mounting systems and
methods that integrate an optical vision device with a field helmet
for alternately supporting the optical device in an operational
position in front of the user's eyes and a stowed position out of
the user's line of vision.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] The invention may take form in various components and
arrangements of components, and in various steps and arrangements
of steps. The drawings are only for purposes of illustrating
preferred embodiments and are not to be construed as limiting the
invention.
[0004] FIG. 1 is a front perspective view of a helmet carrying a
helmet mount according to one embodiment of the present invention,
wherein the helmet mount supports viewing optics in an operational
or viewing position.
[0005] FIG. 2 is a front perspective view of the embodiment shown
in FIG. 1, wherein the viewing optics are rotated to the stowed
position.
[0006] FIG. 3 is a front perspective view of the helmet shown in
FIGS. 1 and 2 having a helmet mount base plate fastened thereto,
wherein the optical device and the remainder of the mounting
assembly has been selectively removed therefrom.
[0007] FIG. 4 is a front perspective view of the mounting assembly
shown in FIG. 1.
[0008] FIG. 5 is a rear perspective view of the mounting assembly
shown in FIG. 4.
[0009] FIGS. 6A and 6B are front and exploded side views,
respectively, of a vertical adjustment mechanism according to an
embodiment of the present invention.
[0010] FIG. 6C is an enlarged view of the vertical adjustment
mechanism shown in FIGS. 6A and 6B.
[0011] FIGS. 6D and 6E are enlarged views of the vertical
adjustment mechanism shown in FIGS. 6A-6C in the respective locked
and unlocked positions.
[0012] FIGS. 7A and 7B are exploded views illustrating a breakaway
mechanism according to a preferred embodiment of the present
invention.
[0013] FIGS. 8A and 8B illustrate an alternative horizontal
adjustment mechanism according to the present invention.
[0014] FIG. 9 is a top perspective view of a mounting system
according to a further embodiment of the invention and which
illustrates the manner of connecting the optical device to the
mounting assembly.
[0015] FIG. 10 is a bottom view of the vertical adjustment and
breakaway assemblies.
[0016] FIG. 11 is a cross-sectional view of the breakaway assembly
taken along the lines 11--11 in FIG. 10, depicted in the locked or
non-breakaway configuration.
[0017] FIG. 12 is a cross-sectional view of the breakaway assembly
as shown in FIG. 11, but illustrating the unlocked or breakaway
configuration.
[0018] FIG. 13 is a front perspective view of a helmet carrying a
helmet mount according to another embodiment of the present
invention.
[0019] FIG. 14 is a front perspective view of the helmet shown in
FIG. 13, wherein the optical device and the flip-up mounting
assembly has been selectively removed therefrom.
[0020] FIG. 15 is a front perspective view of a helmet mounting
system according to a further embodiment of the present
invention.
[0021] FIG. 16 is a front perspective view of the helmet mounting
system shown in FIG. 15, wherein the optical device and the
pivoting mounting assembly has been selectively removed
therefrom.
[0022] FIGS. 17 and 18 are front and rear perspective views,
respectively, of a helmet mounting system according to yet another
embodiment of the present invention.
[0023] FIG. 19 is an exploded side view and FIG. 20 is a rear view
of the helmet strap ratchet system of the present invention.
[0024] FIGS. 21 and 22 are exploded side and exploded rear views,
respectively, of the cover plate assembly portion of a helmet strap
ratchet assembly of the present invention.
[0025] FIG. 23 is an exploded side view and FIG. 24 is a rear view
of the base assembly portion of the helmet strap ratchet assembly
of the present invention.
[0026] FIG. 25 is a front view of a gear rack assembly for helmet
strap ratchet system, which is integral with a bracket for engaging
a rear brim portion of a helmet.
[0027] FIG. 26 is an exploded side view of the integrated gear rack
shown in FIG. 25 and the ratchet system cover plate assembly.
[0028] FIG. 27 is a rear perspective view of a helmet carrying a
track mount system according to still another embodiment of the
present invention, which may be adapted for carrying electrical
components.
[0029] FIG. 28 is a rear perspective view of the helmet and track
mount system shown in FIG. 27, wherein the electrical components
are removed.
[0030] FIG. 29 is a top view of the helmet and track system shown
in FIG. 27.
[0031] FIG. 30 is a front perspective view of the helmet and track
system shown in FIG. 28, wherein the optical device is in the
operational position.
[0032] FIGS. 31 and 32 are a front and top perspective views,
respectively, of the helmet and track system shown in FIG. 30,
wherein the optical device is shown in the raised or flipped-up
position.
[0033] FIG. 33 is a top perspective view of an optic mount adapter
for attaching a helmet mounted optical device to a weapon mount
system.
[0034] FIG. 34 is a bottom perspective view of the adapter shown in
FIG. 33.
[0035] FIG. 35 is a fragmentary view of a weapon system employing
the adapter shown in FIG. 33 wherein a night vision tube is mounted
in optical alignment with a reflex sight.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0036] Referring now to the drawing FIGURES, wherein like reference
numerals refer to like or analogous components throughout the
several views, and with particular reference to FIGS. 1-3, there
appears a first exemplary helmet mounting system embodiment 100 of
the present invention. The helmet mounting system 100 includes a
connection plate assembly 104 attached to the front portion of a
helmet 108. A pivoting helmet mount 112 is removably attached at a
first end to the connection plate 104 and at a second end to an
optical device 116. The present invention is shown with a monocular
night vision goggle, e.g., employing a single image intensifier
tube and associated optics, for ease of exposition, however, it
will be understood that the invention can be used with other types
of sighting devices, such as a monocular or binoculars, helmet
mounted display screen, head-up display or any other helmet mounted
optical, electro-optical, and/or viewing devices.
[0037] The purpose of the mounting system is to position the
optical device 116 so that it is movable between an operational or
viewing position as shown in FIG. 1 and a stowed position as shown
in FIG. 2, thereby allowing the operator to reposition the optical
device without the need to remove the helmet.
[0038] With reference now to FIGS. 4 and 5, and with continued
reference to FIGS. 1-3, the pivoting helmet mount 112 includes a
helmet interface assembly 120 that interfaces with the mounting
plate 104. The mounting assembly 120 includes resilient buttons 124
having grooves or channels 128 formed therealong. The grooves 128
mate with guide rails 132 formed on the plate 104. A locking member
136 engages an aligned opening 144 formed in the plate 104 and a
tensioning member 140 such as a resilient button may be provided to
prevent movement or rattling between interface assembly 120 and the
plate 104. The connection plate assembly 104 couples to the helmet
108 utilizing mechanical fasteners 148, such as screws, rivets,
clips, dogs, pawls, or the like.
[0039] The helmet interface assembly 120 includes a sliding plate
152 which slides horizontally with respect to the helmet interface
assembly 120. The sliding plate is selectively positionable to
provide a vertical adjustment of the optical device relative to the
eyes of a wearer.
[0040] As best seen in FIGS. 6A-6E, an actuator button 156 is
coupled to sliding cam or lever 158 which selective urges a gear
rack lock member 160 toward gear rack 162 to prevent movement of
the sliding plate 120. When the button 156 is manually depressed
against the urging of spring 164, the teeth 166 of the gear lock
member 160 are urged out of engagement with the gear rack, allowing
the sliding plate to be moved to a desired vertical position.
[0041] The lever 158 is held in the locked position (upper position
in the orientation shown) by tension from spring 164. When the
lever 158 is in the locked position, the cam surface 170 forces the
gear rack lock 160 to compress spring 174, which bears on the lock
160, thus engaging the gear rack lock teeth 166 into the teeth 168
of the gear rack 162. When the operator desires to change the
vertical position of the helmet mount, he/she presses the button
156 downward, thus compressing spring 164. The spring 174 pushes
the gear rack lock 160 away from the gear rack 160, thus allowing
the helmet mount to be repositioned to a different vertical
location within the upper and lower adjustment limits. When the
operator selects the correct vertical location for the helmet
mount, the button 156 is released. The spring 164 forces the lever
158 back into the locked position, and the cammed surface 170
causes the gear rack lock 160 to compress spring 174 whereby the
toothed portion 166 of the lock engages the teeth 168 of the gear
rack to lock the helmet mount sliding plate assembly in the
selected vertical position.
[0042] The sliding plate 152 also carries a user-selectable
breakaway assembly 172, as best seen in FIGS. 7A and 7B. The
breakaway assembly provides an interface between a first pivot arm
176 and the sliding plate assembly 120. The connection between the
breakaway assembly and the pivot arm 176 may be selectively
configured as a breakaway connection or a rigid attachment by
moving lever 180, as will be described in greater detail below.
[0043] An angle or tilt adjustment knob 184 includes a threaded rod
(not shown) rotatably engaging a mating threaded opening in the
pivot arm 176. The arm 176 rotates relative to plate 188, which
includes an elongate or curvate opening or slot (not shown)
receiving the threaded rod. Loosening the knob 184 allows
adjustment of the optics to a desired tilt angle according to
user's eye position and a desired line of sight, whereby the tilt
angle may then be secured in the desired position by tightening the
knob 184.
[0044] A second pivot arm 192 is pivotally attached to the first
pivot arm 176. The second pivot arm 192 includes an outer,
generally cylindrical sleeve 196 which rotates with respect to a
pivot pin assembly 200. The pivot pin assembly 200 includes a
central rod 204 coaxial with the pivot axis and carrying a
protruding pin 208. A generally cylindrical sleeve or bushing 212
is coaxially disposed intermediate the sleeve 196 and the axial rod
204. The bushing 212 includes an elongate slot 212 through which
the pin 208 extends. The central rod 204 is movable in the axial
direction against the urging of a captured coaxial spring (not
shown) whereby the pin 208 may travel within the slot 212.
[0045] The outer sleeve 196 further includes a generally U-shaped
slot 216 into which the pin 208 extends. The U-shaped slot 216
includes a rear axially extending leg 220, a front axially
extending leg 224, and a base 228 extending in the radial direction
between the legs 220 and 224. The pin 208 engages the rear leg
portion 220 of the channel 216 when the optical device is in the
operational position. Manually depressing the central rod 204 and
allows the arm 192 to pivot with respect to the arm 176. Upon
pivoting the unit and releasing the rod 204, the pin 208 travels to
the second leg 224 whereby the optical device is retained in the
flipped-up position. In a preferred embodiment, the slot 212 and
the legs 220 and 224 are tapered such that they widen toward the
base 228 to provide a wedging action on the pin 208 and to provide
ease of operation during the pivoting operation.
[0046] The pivot arm 192 carries a pair of rails 232 extending in
the horizontal position (when the helmet is worn by a user and the
goggle is in the operational, i.e., flipped down, position). A
sliding carriage 236 is movable along the slide rails 232 to allow
the user to horizontally position the optical device at a
comfortable or desired focal distance from the operator's eyes. At
least one of the slide rails 232 (both in the depicted embodiment)
contain a series of locking teeth 240 along its length for engaging
an internal locking member such as a toothed member, pin, or the
like, to provide secure retention at a selected position. Release
buttons 244, biased toward the locked position, may be manually
depressed to disengage the locking members to allow sliding
movement of the carriage 236 until the optics are positioned at a
desired focal position in front of the user's eye.
[0047] Referring now to FIGS. 8A and 8B, there is shown an
alternative embodiment carriage 230 for providing the fore and aft
movement and securing the optical device to the helmet mount. In
this embodiment, the horizontal positioning is controlled by a
rotary knob 234 that, when turned, moves the device closer to or
farther away from the wearers eyes. The knob is mounted on a shaft
238 having a toothed gear 242 thereon. Parallel guide rails 232 and
233 ride in channels 246 and 250, respectively. The gear 242
engages a series of teeth 240 on the rail 232 and which extend into
the channel 246, whereby the carriage 230 may be advanced or
retracted along the rails 232 and 233 by manually rotating the knob
234 in the respective forward or reverse direction. It will be
recognized that a variety of configurations are possible. For
example, either or both of the parallel rails may include a gear
rack. Likewise, the knobs 234 may be mounted on both sides of the
horizontal slide, as depicted, or may be attached on one side only.
For example, where a single knob 234 is provided, it may be
positioned on the left side of the carriage 230 to accommodate a
right hand operator, or on the right side to accommodate a left
hand operator.
[0048] The sliding carriage 236 or 230 is secured to the optical
device 116. As best seen in FIGS. 1 and 9, the depicted viewing
goggle 116 includes a central mounting member 246 for mounting the
night vision tube 250. In the illustrated embodiment, the night
vision tube is pivotally mounted to the mounting member 246 for
aligning the optical axis of the night vision goggle with the
user's eye. The mounting member 246 may additionally house a
battery for providing power to operate the night vision goggle.
Although the depicted embodiment is shown with a monocular night
vision scope, the mounting member 246 may optionally accept a pair
of night vision tubes to provide a binocular night vision goggle,
which advantageously gives the viewer a perception of depth. The
mounting member 246 may be of a type generally known in the art,
see, e.g., U.S. Pat. No. 5,703,354. The mounting member 246
includes a mounting foot 248 for receiving a complementary mating
and generally trapezoidal mounting shoe 252 located on the sliding
carriage 236. A locking member 256 is resiliently biased to engage
complementary recess 260 located on the mounting foot 248. An
unlocking lever 264 is provided which can be used to manually
disengage locking member 256 against the biasing of an internal
spring (not shown) to release the optical device from the mounting
unit.
[0049] As can best be seen in FIGS. 7A, 7B, and 10-12, the
selectable breakaway connector 172 includes a housing member 268
housing a cam 272, which is manually rotatable via a lever 180.
Balls 276 partially protrude from the housing and are captured
within retaining rings 280. Coil springs 284 are housed within
channels 288 formed in the housing 268 and urge the balls
outwardly. The balls are prevented from escaping via inwardly
extending lips 292 on the retaining rings 280.
[0050] When the cam 272 is rotated such that the long axis of the
cam is aligned with the axes of the aligned bores 288, as shown in
FIG. 11, the coils of the springs 284 are compressed to their
maximum extent, whereby, the balls are not inwardly depressible. In
this manner, the balls are rigidly maintained in the outward,
protruding position, thereby engaging complimentary openings 296 in
non-breakaway fashion.
[0051] When the cam is rotated such that the long axis of the cam
is perpendicular with the axes of the aligned bores 288, as shown
in FIG. 12, the coils of the springs 284 are separated, thereby
rendering the balls 276 resiliently depressible in the inward
direction. In this manner, the balls may move inwardly against the
urging of the springs, thereby allowing the breakaway unit to
separate when a sufficient force is applied. The breakaway setting
as shown in FIG. 12 is advantageous in that it may prevent injury
to the wearer in the event of entanglement or impact of the goggle
116. Likewise, the non-breakaway setting may advantageously be
selected in instances where it is desired to prevent inadvertent
dislodging of the goggles from the helmet, e.g., where loss of the
goggles is possible or where the operator may be subject to high
accelerational or G forces. Protrusions 300 engaging complimentary
aligned openings or cavities 304 may also be provided to further
secure the pivot leg 176 to the breakaway assembly.
[0052] Referring now to FIG. 13, there is shown a further
embodiment helmet mount 100a including a mounting plate 308
interfacing a helmet mount 112, as detailed above, to a helmet 108.
As seen in FIG. 14, the mounting plate 308 includes guide rails 132
for receiving the helmet mount assembly as described above and is
secured to the front of the helmet 108 via a fastener 312, such as
a threaded fastener or the like. Also, a pair of laterally
spaced-apart hook members 316 engages the brim of the helmet,
thereby providing three points of attachment of the plate member
308. Commonly, military helmets are provided with a single hole
predrilled in the front thereof and the embodiment 100a is
advantageous in that it may readily be adapted to employ such
predrilled hole for receiving the fastener 312.
[0053] Referring now to FIGS. 15 and 16, there appears a strap
mount system 100b according to another embodiment of the present
invention. A mounting plate 320 includes guide rails 132 for
securing the pivoting mounting assembly 112 to the front of the
helmet 108 (shown in fragmentary view) as described above. A strap
324 passes along the centerline of the helmet and attaches to a
rear ratchet assembly 328 as will be described in greater detail
below. The ratchet assembly 328 attaches to the rear of helmet 108
via a wrap-around bracket 332 including laterally spaced-apart hook
members 336 engaging the rear brim portion of the helmet 108. The
front and rear hook members 316 and 336, respectively, may include
noise and/or vibration dampening members 340 formed of a flexible
elastic or resilient material. In the depicted embodiment, the
dampening members 340 may be pads, grommets engaging holes formed
in the hook members, or the like. Other flexible or resilient
dampening members such as resilient member 344 may be provided at
other points of contact as well.
[0054] Referring now to FIGS. 17 and 18, there appears a strap
mount system 100c according to yet another embodiment of the
present invention. A mounting plate 348 includes a plurality of
fasteners 352, such as threaded fasteners, for securing the
pivoting mounting assembly 112a to the front of the helmet 108
(shown in fragmentary view and in phantom lines). The mounting
assembly 112a is substantially as described above with respect to
mounting assembly 112, except that the sliding plate assembly 152
is permanently attached to the plate 348, i.e., such that the guide
rails 132 and the release buttons 124 (see, e.g., FIGS. 3 and 4)
have been omitted. A strap 324 passes along the centerline of the
helmet and attaches to a rear ratchet assembly 328, which in turn
attaches to the rear of helmet 108 via a wrap-around bracket 332
including laterally spaced-apart hook members 336 engaging the rear
brim portion of the helmet 108. Dampening members 340 may also be
provided as described above.
[0055] Referring now to FIGS. 19-26, the helmet strap ratchet
system 328 according to the present invention attaches to the rear
of the helmet via rear bracket 332 having wrap-around hooks 336 as
described above. In the depicted embodiment, the bracket 332 is
integrally formed with the gear rack 356. However, the bracket 332
and the gear rack 356 could be separately formed and secured via a
strap member or other mechanical linkage.
[0056] The gear rack 356 is received within a housing comprising a
cover plate 360 fastened to base plate 364. A ratchet lock 368
pivots about pin 372 and is biased via spring 376 in the locked
position. Ratchet lock 368 further includes a locking member or
tooth 380 engaging spur gear 384 to prevent rotation in the
loosening direction (counterclockwise in the depicted embodiment),
while providing a ratcheting mechanism which allows rotation of
spur gear 384 in the tightening direction. Manually depressing the
ratchet lock 368 disengages the tooth 380 from the spur gear 384
allowing it to rotate in the loosening direction. The spur gear 384
engages a row of teeth 388 of the gear rack 356 whereby rotating
the spur gear 384 advances or retracts the gear rack 356 and, thus,
loosening or tightening the strap 84. The ratchet assembly 328
further includes a slotted member 392 for receiving the strap 84
and wherein the loose end thereof may be retained, e.g., via a
buckle 396. The spur gear 384 is attached to a tensioning knob 400
via a screw 404, dowel pins 408, and retaining ring 412. Spur gear
384 is rotated using the tensioning knob 400. In this manner, the
mounting system may be readily adapted for a variety of helmet
sizes. Also, the wearer can attach and remove the helmet mount
system as needed without the need for removing the helmet.
Fasteners 416, 420, and 424, such as threaded fasteners, pins, and
the like, may be provided to secure the housing shell members 360
and 364 together. A plurality of spaced apart pins 428 may be
provided adjacent the non-toothed edge 432 of the gear rack 356 to
provide bearing points along which the surface 432 slides as the
gear rack 356 is advanced and retracted.
[0057] Referring now to FIGS. 27-32, a track mounting system 102 is
provided for mounting an optical device 116 as described above to
the front of helmet 108. A ratcheting assembly 436 incorporating
electrical connectors 440 for removably attaching a power supply
444, such as an optionally rechargeable battery or battery pack, is
provided. The ratcheting assembly 436 includes a wrap-around
bracket 332 for attachment to the rear brim portion of the helmet
108, which is attached to a gear rack 356.
[0058] The mounting system 102 includes a bracket 448 which is
slidable in track 452 as shown in FIG. 31. In addition to allowing
the optical device 116 to be flipped up from the operational
position (FIG. 30) to a stowed position (FIG. 31), the stowed
optical device can then be further retracted by moving the entire
assembly along the track 452, thereby reducing front helmet weight
and providing better center of gravity so as to improve helmet
balance and reduce neck fatigue in the wearer.
[0059] The sliding mount 448 includes pins, rails, or the like
received within channels 456 of the track assembly 452, thereby
slidably retaining the mount 448 within the track channels 456. The
track assembly portion 452 may have a predetermined curvature which
is adapted to fit a certain helmet type and/or size, or may be
adapted to fit a variety of helmet types and sizes. The sliding
mount 448 also includes quick release buttons 460 to allow the
mount 448 to freely slide along the track 452. For example, the
buttons 460 may operate against the urging of biasing springs to
disengage the retaining members from complementary recesses formed
within the track, the retaining pins being received within the
recesses to provide secure retention at each end of travel along
the track.
[0060] The track assembly 452 is secured to the front brim portion
of the helmet 108 via a front wrap-around attachment member 468,
which may be cushioned via resilient grommets 472.
[0061] Track member 452 includes and electrical connector 464,
which is electrically coupled with the electrical connector 440.
The electrical connector 464 may be used, for example, for
attaching an identification friend-or-foe (IFF) transponder 476.
Other electrically operated devices, such as communication systems,
are also contemplated. The electrical connectors 464 and 440 shown
are bayonet-style connectors having a resilient or retractable
protrusion 480 for locking an attached device or power supply in
place, e.g., by engaging a complimentary cavity or depression in an
attached device. A release lever 484 is also provided to disengage
the protrusion 480 to allow removal of an attached device.
[0062] A strap 488 couples the track assembly 452 and the ratchet
assembly 436. The strap and ratchet assembly allow the mounting
system to be sized to fit multiple helmet sizes. The strap 488
houses electrical conductors, such as wiring or conductive traces
on a flexible circuit board, which electrically couple the
electrical connector 440 to the connector 464, e.g., for providing
power from an attached power supply 444 and an attached device such
as the friend/for system 476. For example, the conductors may pass
within an axial opening or channel formed in the strap. In an
alternative embodiment, the strap 488 may be omitted the track
assembly may be sized to span the entire helmet.
[0063] The ratchet assembly 436 attaches to the rear brim portion
of the helmet via rear bracket 332 having hooks 336, preferably
with resilient grommet inserts 340. The ratchet assembly 436
includes a gear rack 356 received within a housing, for example a
shell type housing comprising a cover plate 360a fastened to a base
plate 364a. The ratchet assembly 436 includes a ratcheting thumb
wheel 400 which is normally rotatable in the tightening direction
only. A ratchet lock 368 is manually depressible to disengage the
ratchet mechanism from the gear rack 356, allowing the gear rack to
move freely in either direction. The ratchet mechanism may be
substantially as shown and described above by way of reference to
the ratchet mechanism 328 shown in FIGS. 19-26.
[0064] The ratchet assembly 436 additionally includes electrical
connector 440 for attaching power supply 444 and is electrically
coupled to the connector 464 on the track assembly 352 via
conductors passing within the strap 488. In the depicted
embodiment, the electrical connector 440 is a male bayonet style
connector which engages a complementary female bayonet connector on
the battery or battery pack 444.
[0065] The depicted battery pack 444 may house one or more
batteries and preferably contains a female bayonet connector on a
first side for connecting to the connector 440 and a male connector
492 on the opposite side of the unit to allow multiple battery
packs 444 to be connected in parallel, e.g., to provide longer
battery life. A removable cover 496 allows batteries contained
within the battery pack 444 to be replaced.
[0066] In a preferred embodiment, where a night vision scope or
other electronically operated optical device is employed, such
optics will typically employ a self-contained power supply and,
therefore, do not need to receive power from the helmet mounted
power supply 444. However, in certain embodiments, it is
contemplated that an electrical connection between the battery
connector 440 and the bracket 448 be provided to power an attached
electronically operated optical device.
[0067] Referring now to FIGS. 33-35, a weapon mount 500 for
attaching an optical device to a weapon system is shown. This
device allows an operator to quickly transfer an optical device,
such as a helmet mounted optical device 116, for shared use between
a helmet mounting system, e.g., as described herein, and a weapon
system. Although the illustrated weapon mount 500 is shown in
connection with a Picatinny rail system (e.g., MIL-STD-1913) 504,
it will be recognized that the weapon mount 500 may be adapted for
use with all manner firearms, including without limitation rifles,
handguns, machine guns, mortars, etc., and all manner of weapon
accessory mount rail interfaces or other mounting system types.
[0068] The weapon mount 500 includes an optic mount 508 having a
trapezoidal mounting shoe 252 for receiving a complimentary
mounting foot 248 (see FIG. 9) of an optical device 116. A locking
member 256 is resiliently biased to engage a complementary recess
260 located on the mounting foot 248 (see FIG. 9). The trapezoidal
shoe opens away from the operator, thus preventing slippage in the
event of weapon recoil. An unlocking lever 264 is provided which
can be used to manually disengage locking member 256 against the
biasing of an internal spring (not shown) to release the optics
from the mounting unit. A lock release button 512 may additionally
be provided to maintain the locking member 256 in the locked
position, for use in conjunction with lever 264 to release the
optical device from the shoe portion 508, e.g., to prevent
disengagement of the optics due to recoil of the weapon. A rail
clamp portion 516 of the weapon mount 500 attaches to a weapon rail
504 and includes a floating rail grabber 520 which is secured to
the rail system via thumb screw 524. A locator pin 528 engages a
selected one of the recoil grooves 532 in the rail 504.
[0069] FIG. 35 depicts a preferred embodiment wherein the weapon
536 includes a reflex sight 540 of a type employing a light source
for projecting a dot or other target designator, used in
conjunction with a night vision tube 116 to provide night-time or
low-light targeting capability. The reflex sight 540 is secured to
the rail system 504 via a rail mount 544. In operation, mount 500
may be preattached to the rail 504, whereby the night vision tube
may readily be transferred between a helmet mount system and the
rail mount 500, wherein it is in optical alignment with the reflex
sight 540. In this manner, the reflex sight target designator is
projected and superimposed by the eye of the viewer on the image
generated by the night vision scope 116.
[0070] The invention has been described with reference to the
preferred embodiments. Modifications and alterations will occur to
others upon a reading and understanding of the preceding detailed
description. It is intended that the invention be construed as
including these and other modifications and alterations insofar as
they come within the scope of the appended claims or the
equivalents thereof. All references cited herein are incorporated
herein by reference in their entireties.
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