U.S. patent application number 12/707732 was filed with the patent office on 2010-10-07 for quick release faceguard attachment.
Invention is credited to Brian M. Parisi.
Application Number | 20100251464 12/707732 |
Document ID | / |
Family ID | 42824934 |
Filed Date | 2010-10-07 |
United States Patent
Application |
20100251464 |
Kind Code |
A1 |
Parisi; Brian M. |
October 7, 2010 |
Quick Release Faceguard Attachment
Abstract
An attachment system for operative connection of a faceguard to
a helmet shell with the faceguard being held within a selectively
releasable clamp operatively secured to the helmet shell. The
attachment system includes a compressible spring clip held in
overlying relation to the helmet shell. The spring clip is adapted
to selectively clamp a bridge member of the faceguard. A
selectively engageable latch structure holds the spring clip in the
closed condition. Upon release of the latch structure, the spring
clip is urged to the open condition, such that the faceguard may be
rotated away from a user's face.
Inventors: |
Parisi; Brian M.; (Evanston,
IL) |
Correspondence
Address: |
ILLINOIS TOOL WORKS INC.
3600 WEST LAKE AVENUE, PATENT DEPARTMENT
GLENVIEW
IL
60025
US
|
Family ID: |
42824934 |
Appl. No.: |
12/707732 |
Filed: |
February 18, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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61166829 |
Apr 6, 2009 |
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Current U.S.
Class: |
2/424 ; 2/425;
2/9 |
Current CPC
Class: |
A42B 3/20 20130101 |
Class at
Publication: |
2/424 ; 2/9;
2/425 |
International
Class: |
A42B 1/08 20060101
A42B001/08; A41D 13/00 20060101 A41D013/00; A63B 71/10 20060101
A63B071/10 |
Claims
1. An attachment system adapted to operatively connect a faceguard
to a helmet shell, the attachment system comprising: a compressible
spring clip operatively engaging an adjustable connector extending
outwardly from an exterior surface of the helmet shell such that
the spring clip is held in overlying relation to the helmet shell,
the spring clip being adapted to selectively clamp a bridge member
of the faceguard, the spring clip including a platform base, a
pivoting lockdown leg disposed above the platform base and a
biasing spring segment operatively connecting the platform base and
the lockdown leg, the platform base and the lockdown leg
cooperatively defining a compressible pocket adapted to cradle the
bridge member between the platform base and the lockdown leg, the
lockdown leg moving in pivoting relation between an open condition
in which the bridge member is rotatable within the pocket and a
closed condition in which the bridge member is clamped against
rotation within the pocket; and a selectively engageable latch
structure adapted to hold the lockdown leg in the closed condition,
such that upon release of the latch structure, the spring segment
urges the lockdown leg away from the platform base to the open
condition, such that the bridge member is rotatable within the
pocket.
2. The attachment system as recited in claim 1, wherein the
adjustable connector comprises a screw disposed within a T-nut
projecting outwardly from the helmet shell, the screw including a
tool-engaging distal head.
3. The attachment system as recited in claim 2, wherein the
platform base includes a pass-through opening adapted to matedly
receive the distal head of the screw.
4. The attachment system as recited in claim 3, wherein the
pass-through opening is a keyway opening including a base portion
adapted for passage of the distal head and a retention slot of
reduced width relative to the base portion, the retention slot
adapted to block withdrawal of the distal head.
5. The attachment system as recited in claim 4, wherein the
retention slot is disposed at least partially within a raised
surface at a height greater than the base portion.
6. The attachment system as recited in claim 1, wherein the spring
clip has a substantially hairpin configuration and wherein the
spring segment is disposed in curved relation between the platform
base and the lockdown leg at least partially about the pocket.
7. The attachment system as recited in claim 6, wherein the
lockdown leg includes a downwardly extending protuberance defining
a forward boundary of the pocket.
8. The attachment system as recited in claim 1, wherein the
lockdown leg has a dogleg configuration including a proximal
surface adjacent to the spring segment, a distal surface forward
from the proximal surface and a ramp segment extending between the
proximal surface and the distal surface.
9. The attachment system as recited in claim 8, wherein the ramp
segment includes a tool access opening.
10. The attachment system as recited in claim 1, wherein the spring
clip is a one-piece molded structure of polymeric material.
11. An attachment system adapted to operatively connect a faceguard
to a helmet shell, the attachment system comprising: a compressible
spring clip operatively engaging an adjustable connector extending
outwardly from an exterior surface of the helmet shell such that
the spring clip is held in overlying relation to the helmet shell,
the spring clip being adapted to selectively clamp a bridge member
of the faceguard, the spring clip including a platform base, a
pivoting lockdown leg disposed above the platform base and an
arcuate spring segment operatively connecting the platform base and
the lockdown leg, the arcuate spring segment at least partially
surrounding a compressible pocket adapted to cradle the bridge
member between the platform base and the lockdown leg, the lockdown
leg moving in pivoting relation between an open condition in which
the bridge member is rotatable within the pocket and a closed
condition in which the bridge member is clamped against rotation
within the pocket, the lockdown leg including a slot opening
disposed adjacent to a distal edge of the lockdown leg; and a
selectively engageable latch structure adapted to hold the lockdown
leg in the closed condition, such that upon release of the latch
structure, the spring segment urges the lockdown leg away from the
platform base to the open condition, wherein the latch structure
includes a resilient locking arm extending upwardly from the
platform base, the locking arm including a post portion and a
distal angled head adapted for snap-in insertion through the slot
opening in the lockdown leg, the angled head including a chamfered
camming surface and an undercut disposed between the post portion
and the chamfered camming surface, wherein the chamfered camming
surface includes a tool-engaging cavity oriented to face outwardly
towards the distal edge of the lockdown leg following insertion
through the slot opening in the lockdown leg.
12. The attachment system as recited in claim 1, wherein the
adjustable connector comprises a screw disposed within a T-nut
projecting outwardly from the helmet shell, the screw including a
tool-engaging distal head.
13. The attachment system as recited in claim 12, wherein the
platform base includes a pass-through opening adapted to matedly
receive the distal head of the screw.
14. The attachment system as recited in claim 13, wherein the
pass-through opening is a keyway opening including a base portion
adapted for passage of the distal head and a retention slot of
reduced width relative to the base portion, the retention slot
adapted to block withdrawal of the distal head.
15. The attachment system as recited in claim 14, wherein the
retention slot is disposed at least partially within a raised
surface at a height greater than the base portion.
16. The attachment system as recited in claim 11, wherein the
lockdown leg has a dogleg configuration including a proximal
surface adjacent to the spring segment, a distal surface forward
from the proximal surface, the distal surface surrounding the slot
opening, and a ramp segment extending between the proximal surface
and the distal surface.
17. The attachment system as recited in claim 16, wherein the ramp
segment includes a tool access opening.
18. The attachment system as recited in claim 11, wherein the
lockdown leg includes a downwardly extending protuberance defining
a forward boundary of the pocket.
19. An attachment system adapted to operatively connect a faceguard
to a helmet shell, the attachment system comprising: a compressible
spring clip operatively engaging an adjustable connector extending
outwardly from an exterior surface of the helmet shell such that
the spring clip is held in overlying relation to the helmet shell,
the spring clip being adapted to selectively clamp a bridge member
of the faceguard, the spring clip including a platform base, a
pivoting lockdown leg disposed above the platform base and an
arcuate spring segment operatively connecting the platform base and
the lockdown leg, the arcuate spring segment at least partially
surrounding a compressible pocket adapted to cradle the bridge
member between the platform base and the lockdown leg, the lockdown
leg moving in pivoting relation between an open condition in which
the bridge member is rotatable within the pocket and a closed
condition in which the bridge member is clamped against rotation
within the pocket; and a selectively engageable latch structure
adapted to hold the lockdown leg in the closed condition, such that
upon release of the latch structure, the spring segment urges the
lockdown leg away from the platform base to the open condition,
such that the bridge member is rotatable within the pocket, wherein
the latch structure comprises a camming screw having a
tool-engaging head portion disposed across an upper surface of the
lockdown leg, and wherein the connector comprises a camming lug
including partial turn camming tracks adapted to engage the camming
screw such that the camming screw is latched in place by
compression and rotation within the camming lug.
20. The attachment system as recited in claim 19, wherein the
camming lug comprises a T-nut having a plurality of substantially
J-shaped camming tracks.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the benefit of provisional
application No. 61/166,829, filed Apr. 6, 2009, the contents of
which are incorporated by reference as if set forth herein in their
entirety.
TECHNICAL FIELD
[0002] The present invention relates generally to faceguard systems
for protective helmets, and is more particularly directed to a
system for releasable attachment of a faceguard to a helmet shell.
The attachment system incorporates a selectively releasable spring
clip incorporating a biasing lockdown leg and a retaining pocket
adapted to support a crossbar member of the faceguard. Upon release
of the lockdown leg, the crossbar member may be rotated within the
retaining pocket and the faceguard may be pivoted relative to the
helmet shell.
BACKGROUND OF THE INVENTION
[0003] In many sporting events it is desirable for participants to
wear a helmet shell to protect against accidental injury as a
result of contact with equipment or other participants during an
athletic contest. It may also be desirable to provide a generally
cage-like faceguard across a forward portion of the helmet shell to
provide the user with frontal protection while nonetheless
providing substantial frontal visibility. By way of example only,
and not limitation, such combinations of helmet shells and
faceguards may be used in American football, lacrosse, baseball,
fast-pitch softball, rodeo, and the like.
[0004] While the presence of a faceguard may be desirable to
prevent facial injury, in the event that a player does become
injured, the presence of the faceguard may hinder the ability of
medical personnel to render assistance. Specifically, with the
helmet shell and faceguard in place, emergency personnel will be
unable to reach the injured player's face to conduct tests and
render treatment. By way of example only, the presence of a
faceguard may make it difficult to administer emergency aid such as
mouth-to-mouth resuscitation. While access to the player's face may
be achieved by removing the entire helmet shell with the faceguard
attached, such removal may be undesirable in the event of a
suspected brain or spinal injury. Specifically, when such injuries
are suspected, the general recommendation is to minimize head and
neck movement. To avoid moving the player's head under such
conditions, it may be necessary to entirely remove the faceguard
from the helmet shell prior to administering treatment. However,
such removal tends to be relatively time-consuming and complex. In
light of such issues, there is a need for a faceguard attachment
system which permits rapid displacement of the faceguard without
requiring removal of the entire helmet shell.
SUMMARY OF THE INVENTION
[0005] The present invention provides advantages and alternatives
over the prior art by providing a system for operative connection
of a faceguard to a helmet shell with the faceguard being held
within a selectively releasable clamp operatively secured to the
helmet shell. Upon release of the clamp, the faceguard may be
rotated away from the user's face so as to permit access by
emergency personnel without the need to remove the helmet
shell.
[0006] In accordance with one exemplary aspect, the present
invention provides an attachment system adapted to operatively
connect a faceguard to a helmet shell. The attachment system
includes a compressible spring clip operatively engaging an
adjustable connector extending outwardly from an exterior surface
of the helmet shell such that the spring clip is held in overlying
relation to the helmet shell. The spring clip is adapted to
selectively clamp a bridge member of the faceguard. The spring clip
includes a platform base, a pivoting lockdown leg disposed above
the platform base and a biasing spring segment operatively
connecting the platform base and the lockdown leg. The platform
base and the lockdown leg cooperatively define a compressible
pocket adapted to cradle the bridge member between the platform
base and the lockdown leg. The lockdown leg moves in pivoting
relation between an open condition in which the bridge member is
rotatable within the pocket and a closed condition in which the
bridge member is clamped against rotation within the pocket. The
attachment system further includes a selectively engageable latch
structure adapted to hold the lockdown leg in the closed condition,
such that upon release of the latch structure, the spring segment
urges the lockdown leg away from the platform base to the open
condition, such that the bridge member is rotatable within the
pocket.
[0007] In accordance with another exemplary aspect, the present
invention provides an attachment system adapted to operatively
connect a faceguard to a helmet shell. The attachment system
includes a compressible spring clip operatively engaging an
adjustable connector extending outwardly from an exterior surface
of the helmet shell such that the spring clip is held in overlying
relation to the helmet shell. The spring clip is adapted to
selectively clamp a bridge member of the faceguard. The spring clip
includes a platform base, a pivoting lockdown leg disposed above
the platform base and an arcuate spring segment operatively
connecting the platform base and the lockdown leg. The arcuate
spring segment at least partially surrounds a compressible pocket
adapted to cradle the bridge member between the platform base and
the lockdown leg. The lockdown leg moves in pivoting relation
between an open condition in which the bridge member is rotatable
within the pocket and a closed condition in which the bridge member
is clamped against rotation within the pocket. The lockdown leg
includes a latch acceptance opening disposed adjacent to a distal
edge of the lockdown leg. The attachment system further includes a
selectively engageable latch structure adapted to hold the lockdown
leg in the closed condition. Upon release of the latch structure,
the spring segment urges the lockdown leg away from the platform
base to the open condition. The latch structure includes a
resilient locking arm extending upwardly from the platform base.
The locking arm includes a post portion and a distal angled head
adapted for snap-in insertion through the latch acceptance opening
in the lockdown leg. The angled head includes a chamfered camming
surface and an undercut disposed between the post portion and the
chamfered camming surface. The chamfered camming surface includes a
tool-engaging cavity oriented to face outwardly towards the distal
edge of the lockdown leg following insertion through the latch
acceptance opening in the lockdown leg.
[0008] In accordance with yet a further exemplary aspect, the
present invention provides an attachment system adapted to
operatively connect a faceguard to a helmet shell. The attachment
system includes a compressible spring clip operatively engaging an
adjustable connector extending outwardly from an exterior surface
of the helmet shell such that the spring clip is held in overlying
relation to the helmet shell. The spring clip is adapted to
selectively clamp a bridge member of the faceguard. The spring clip
includes a platform base, a pivoting lockdown leg disposed above
the platform base and an arcuate spring segment operatively
connecting the platform base and the lockdown leg. The arcuate
spring segment at least partially surrounds a compressible pocket
adapted to cradle the bridge member between the platform base and
the lockdown leg. The lockdown leg moves in pivoting relation
between an open condition in which the bridge member is rotatable
within the pocket and a closed condition in which the bridge member
is clamped against rotation within the pocket. The attachment
system further includes a selectively engageable latch structure
adapted to hold the lockdown leg in the closed condition, such that
upon release of the latch structure, the spring segment urges the
lockdown leg away from the platform base to the open condition,
such that the bridge member is rotatable within the pocket. The
latch structure includes a camming screw having a tool-engaging
head portion disposed across an upper surface of the lockdown leg.
The connector includes a camming lug including partial turn camming
tracks adapted to engage the camming screw such that the camming
screw is latched in place by compression and rotation within the
camming lug.
BRIEF DESCRIPTION OF THE DRAWINGS
[0009] FIG. 1 is a perspective view of an exemplary helmet
including a faceguard;
[0010] FIG. 2 is a schematic assembly view illustrating an
exemplary attachment system for connecting a faceguard to a helmet
shell in selectively rotatable relation to the helmet shell;
[0011] FIG. 3 is a schematic view taken generally along line 3-3 in
FIG. 2 illustrating alignment between a spring clip clamping member
adapted to hold a portion of the face guard and an underlying screw
assembly for connection to the helmet shell;
[0012] FIG. 4 is a view similar to FIG. 3 illustrating the relative
positioning of the screw assembly for lockdown of the overlying
spring clip clamping member;
[0013] FIG. 5 is a cut-away view of the exemplary attachment system
taken generally along line 5-5 in FIG. 4 with the locking arm of
the spring clip clamping member in an opened condition;
[0014] FIG. 6 is a elevation perspective view of the attachment
system illustrated in FIG. 5 with the locking arm in the opened
position;
[0015] FIG. 7 is a view similar to FIG. 5 with the locking arm of
the spring clip clamping member in a closed and latched
condition;
[0016] FIG. 8 is a view similar to FIG. 6 with the locking arm in a
closed and latched condition;
[0017] FIG. 9 is a view of an exemplary helmet with a faceguard
rotated to an upward position providing access to a user's
face;
[0018] FIG. 10 is an elevation perspective view of an alternative
embodiment of a faceguard attachment system in accordance with the
present invention;
[0019] FIG. 11 is a side view of the faceguard attachment system
illustrated in FIG. 10; and
[0020] FIG. 12 illustrates an exemplary camming screw latch
assembly for clamping a locking arm in place relative to a
faceguard cross bar.
[0021] Before embodiments of the invention are explained in detail,
it is to be understood that the invention is in no way limited in
its application to the details of construction and/or the
arrangements of the components set forth in the following
description or illustrated in the drawings. Rather, the invention
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.
Accordingly, the use herein of "including", "comprising`, and
variations thereof is meant to encompass the items listed
thereafter and equivalents as well as additional items and
equivalents thereof.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] Reference will now be made to the drawings wherein like
elements are designated by like reference numerals in the various
views. In this regard, FIG. 1 illustrates an exemplary helmet 10
including a helmet shell 12 and a faceguard 14. As shown, in the
illustrated exemplary construction the faceguard 14 is held to the
helmet shell 12 at releasable side connections 16 (only one shown)
and at one or more frontal connections 18 disposed at a portion of
the helmet shell 12 generally overlying a user's forehead.
Accordingly, during use, both the side connections 16 and the
frontal connections 18 are outside the field of vision of a user
and do not interfere with performance. As will be appreciated,
while the illustrated helmet 10 is a style typically used for
American football, the present invention is likewise adapted for
use with virtually any helmet style as may be desired.
[0023] As noted previously, in the event that a user suffers an
injury, it may be desirable to displace or remove the faceguard 14
to permit medical personnel to access a user's face. Moreover, it
may be desirable to carryout such displacement or removal without
the need to move the user or remove the helmet.
[0024] As illustrated, the faceguard 14 may include a bridge member
20 in the form of an upper cross bar which is operatively secured
to the helmet shell 12 at the frontal connections 18. By way of
example only, and not limitation, FIG. 2 illustrates one exemplary
arrangement for the frontal connections 18 used to hold the bridge
member 20 of a faceguard 14 in place relative to a helmet shell 12.
As shown, in the exemplary arrangement of FIG. 2, the frontal
connection 18 includes a variable tension clasp in the form of a
latchable spring clip 24 adapted to hold the bridge member 20 in a
cradling relationship. The frontal connection further includes a
connector 26 adapted to secure the spring clip 24 in place at the
surface of the helmet shell 12.
[0025] As best seen through joint reference to FIGS. 2, 3, and 5,
the spring clip 24 has a generally hairpin construction including a
platform base 28 and an overlying spring-biased lockdown leg 30. An
intermediate compressible U-shaped spring segment 34 extends
between the platform base 28 and the lockdown leg 30 to define a
retaining pocket 36 for housing the bridge member 20. The U-shaped
spring segment 34 normally supports the lockdown leg 30 at an open
position as shown in FIG. 2. Accordingly, when the lockdown leg 30
is moved towards the platform base 28, the U-shaped spring segment
34 will apply a biasing recovery force urging the lockdown leg 30
back towards the neutral open position.
[0026] In the illustrated exemplary embodiment, the retaining
pocket 36 has a generally arcuate profile with an internal diameter
slightly greater than the outer diameter of the bridge member 20
when the spring clip 24 is in an open i.e., uncompressed condition
as illustrated in FIGS. 2 and 5. The lockdown leg 30 includes an
inwardly projecting protuberance 38 having a rearward surface which
defines a portion of the retaining pocket 36. In this arrangement,
the retaining pocket 36 has a forward opening 40 extending
generally between the apex of the protuberance 38 and the opposing
platform base 28. In the illustrated, exemplary arrangement, this
opening has a width slightly less than the cross-sectional diameter
of the bridge member 20. Accordingly, when the biasing leg 30 is in
the open, neutral position, the bridge member 20 may rotate
substantially freely within the retaining pocket 36 while
nonetheless being blocked from the removal through the forward
opening 40.
[0027] As will be appreciated, the bridge member 20 may be inserted
or removed through the forward opening 40 by applying an opening
force to the lockdown leg 30 and raising the lockdown leg 30 away
from the platform base 28 to widen the forward opening 40. Upon
removal of the opening force, the spring clip 24 will thereafter
return to the illustrated unbiased state shown in FIGS. 2 and 5. In
this regard, it is contemplated that the spring clip 24 will
preferably be formed from a suitable resilient plastic material
such as nylon, polypropylene, or the like to facilitate resilient
bending and recovery.
[0028] As best illustrated in FIGS. 5 and 6, the platform base 28
includes a keyway access opening designated generally as 42 for
matedly accepting the connector 26. In the illustrated arrangement,
the keyway access opening 42 includes a large diameter base portion
44 and a retention slot 46 (FIG. 3) projecting forward from the
base portion 44. Thus, the head of a screw 54 forming a part of the
connector 26 may be inserted through the relatively wide diameter
base portion 44 and may then be moved relative to the platform base
28 such that the shaft of the screw 54 resides within the retention
slot 46.
[0029] In the illustrated exemplary configuration, the platform
base 28 includes a raised surface 50 disposed in surrounding
relation to the retention slot 46. Thus, when the screw 54 is moved
into the retention slot 46, the raised surface 50 may apply an
upward biasing force against the underside of the screw head to aid
in forming a locked relation between the spring clip 24 and the
underlying helmet shell 12. That is, the raised surface 50 acts as
a wedge which is held in compression between the helmet shell 12
and a downwardly facing surface of the screw head. With the raised
surface 50 held in compression between the helmet shell 12 and a
downwardly facing surface of the screw head, slippage is minimized
between the spring clip 24 and the underlying helmet shell.
[0030] By way of example only, and not limitation, in the
illustrated, exemplary arrangement, the connector 26 may be in the
form of a T-nut 52 which extends through an opening in the helmet
shell 12 in combination with cooperating screw 54 which extends in
threaded relation into the T-nut 52. The screw 54 is accessible for
tightening or loosening manipulation through an opening in the
lockdown leg 30. As the screw 54 is advanced into the T-nut 52, the
downwardly facing surface of the head of the screw 54 will press
against the raised surface 50. This downward pressure, in turn,
causes the lower surface of the platform base 28 of the spring clip
24 to be pressed against the outer opposing surface of the helmet
shell 12. Moreover, the sidewalls and lower legs 56 of the T-nut 52
will spread outwardly so as to further enhance the locking relation
between the T-nut 52 and the helmet shell 12.
[0031] As best illustrated through joint reference to FIGS. 5, 6,
7, and 8, in the exemplary arrangement, the lockdown leg 30 may be
pressed inwardly to establish a latched connection with the
underlying platform base 28 (FIGS. 7, 8). In this latched
condition, the open U-shaped spring segment 34 is compressed about
the perimeter of the bridge member 20. In this compressed relation,
the bridge member 20 is substantially precluded from rotational
movement relative to the surrounding surfaces of the retaining
pocket 36. At the same time, when the lockdown leg 30 is in the
latched condition, the stored energy in the U-shaped spring segment
34 applies a continuous biasing force urging the lockdown leg 30
towards the open neutral condition.
[0032] As shown, in the exemplary construction the lockdown leg 30
has a generally dogleg profile including a proximal platform
surface 57 and a distal platform surface 59 disposed forward of the
proximal platform surface. A ramp segment 61 extends between the
proximal platform surface 57 and the distal platform surface 59
with an access opening in the ramp segment for manipulation of the
screw 54. Referring to FIGS. 5 and 6, in the illustrated exemplary
embodiment, the lockdown leg 30 includes a depression 60 across a
forward edge of the distal platform surface 59. The depression 60
includes a generally flat bottom 62 with two lateral sidewalls 64,
66 and a rear wall 68 disposed about the bottom 62. As shown, the
depression 60 is open across its forward face. As illustrated, an
acceptance slot 70 is disposed across the depression 60 in
transverse orientation to the lateral sidewalls 64, 66.
[0033] In the illustrated arrangement, a locking arm designated
generally as 74 extends upwardly away from the platform base 28. As
shown, the locking arm 74 includes an angled head 76 having a half
arrowhead profile adapted for receipt through the acceptance slot
70 when the lockdown leg 30 is moved to a closed position.
Specifically, as best seen in FIG. 6, the angled head 76 includes a
chamfered face 78 which is adapted to slide in camming action
relative to the opposing forward edge of the acceptance slot 70
during insertion. As will be appreciated, during this insertion
action, the locking arm 74 will bend rearwardly and will then snap
forward once the insertion is complete. In the fully inserted
condition illustrated in FIG. 7 an undercut 80 of the angled head
76 is disposed in locked relation over a ledge defined by the
bottom 62 of the depression 60 forward of the acceptance slot
70.
[0034] As best seen in FIGS. 6 and 8, in the exemplary arrangement
the angled head 76 includes a cavity 82. When the lockdown leg 30
is in the locked condition illustrated in FIG. 8, the cavity 82
faces outwardly away from the rear wall 68 of the depression 60.
Thus, the cavity 82 is readily accessible through the open face of
the depression 60. With this arrangement, in the event that it is
desired to disengage the locked relationship of FIG. 8, an
insertion tool such as a ball point pen, screwdriver, or the like,
may be inserted linearly into the cavity 82 to apply rearward
pressure against the angled head 76. As the rearward force is
applied, the angled head 76 moves until the undercut 80 no longer
engages the bottom 62 of the depression 60. Without this latching
engagement, the stored energy in the U-shaped spring segment 34
causes the lockdown leg 30 to spring upwardly away from the
platform base 28 to the neutral condition illustrated in FIGS. 5
and 6. In this condition, the bridge member 20 may then rotate
freely within the retaining pocket 36.
[0035] Referring jointly to FIGS. 1 and 9, the benefit of the
present attachment system may be clearly seen. As shown, by
disengaging the locked relation of the biasing leg 30 to the
platform base 28, the bridge member is not compressed within the
retaining pocket 36 and the faceguard 14 may be rotated upwardly
and away from the player's face so as to permit medical treatment.
Moreover, since the locking relationship can be disengaged by a
simple linear movement using a tool such as a screwdriver,
ballpoint pen, or the like. Substantially no manipulation of the
player's head is required. As will be appreciated, this may be
particularly beneficial in the treatment of head and spinal
injuries during which it is normally advisable to minimize head
movement.
[0036] FIGS. 10-12 illustrate another embodiment of the present
invention. In these figures, elements corresponding to those
previously described are designated by like reference numerals
within a 100 series. As shown, in this arrangement, a spring clip
124 holds a bridge member 120 of a faceguard (not shown). In the
illustrated configuration, the spring clip 124 is secured to the
helmet shell 112 by a pop-out fastener 126 such as a quarter turn
cam screw or the like.
[0037] As best seen through joint reference to FIGS. 10 and 11, a
pop-out fastener extends between the platform base 128 and an
overlying lockdown leg 130 of substantially dogleg profile. As
shown in FIG. 12, one exemplary pop-out fastener 126 includes a
T-nut 152 having a nut base 184 and a quarter turn cam lug 186
adapted to receive and retain the stem of a camming screw 188. As
shown, the cam lug 186 includes generally "J" shaped cam tracks 192
adapted to receive and guide ear members 190 (only one shown)
extending outwardly from the stem of the screw 188.
[0038] As described previously in relation to the earlier
embodiment, the spring clip 124 includes a U-shaped spring segment
134. When the lockdown leg 130 is urged towards the platform base
128, the U-shaped spring segment 134 is placed into compression.
The stored potential energy in the U-shaped spring segment 134
thereafter continuously urges the biasing leg 130 away from the
underlying platform base 128 so as to achieve a substantially force
neutral condition.
[0039] In practice, with the pop out fastener 126 extending between
the helmet shell 112 and the spring clip 124, the camming screw 188
may be pressed downwardly and rotated such that the ear members 190
follow the cam tracks 192 within the cam lug 186. With the screw
188 in the fully inserted condition, the ear members 190 will
reside in opposing relation to stop surfaces 194 (only one shown).
In this condition, the biasing force applied by the spring clip 124
will thereafter urge the screw 188 continuously outward. In this
tensioned state, shown in FIGS. 10 and 11, the spring clip 124 is
held securely to the underlying helmet shell 112. In addition, the
bridge member 120 is substantially blocked against rotation.
[0040] In the event that it is desired to release the spring clip
124 from the locked relationship shown in FIGS. 10 and 11, the
screw 188 may be pressed inwardly and rotated counterclockwise to
release the engagement. In this regard, as the screw is rotated,
the ear members 190 will follow the cam tracks 192 while the screw
188 is urged outwardly by the stored potential energy in the
U-shaped spring segment 134. Thus, the screw 188 will move back to
the position substantially shown in FIG. 12. In this released
condition, the bridge member 120 is no longer clamped. Accordingly,
it can be rotated freely so as to permit the faceguard to be
rotated away from a player's face without head movement. As will be
appreciated, since the screw 188 is released by a quarter turn,
there is substantially no delay in gaining access to the player's
face to administer treatment.
[0041] Of course, variations and modifications of the foregoing are
within the scope of the present invention. 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. The embodiments described herein explain
the best modes known for practicing the invention and will enable
others skilled in the art to utilize the invention. the claims are
to be construed to include alternative embodiments and equivalents
to the extent permitted by the prior art.
[0042] Various features of the invention are set forth in the
following claims.
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