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Патент USA US2407518

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Sept. l0, 1946;
G,_|-|_ SCHAUWEKER
2,407,518
EYE PROTECTION DEVICE
Filed Dec. 1a, 194s
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INVENTOR'
650265 lh'. SCHAUMEKBE
BY
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2,407,518
Patented Sept. 10,- 1946
¥UNITEDA >'ls'rli'vriazs PATENT OFFICE ’
EYE PROTECTION DEVICE
George H. Schauweker, Southbridge, Mass., as- t
signor to American Optical Company, South-v
bridge, Mass., a voluntary association of Massa
chusetts
Application December 18,'194á, sei-lamb., 514,774 '
l
2
This invention relates to improvements in eye
which contacted 'the lenses and heldl them `in asf '
sembled relation with the eyecups _against a
shoulder y.formed onthe inner periphery of said
protection devices and has particular reference to
novel means and method of forming a goggle and
of providing said goggle with ventilation means.
One of the principal objects of the invention is
eyecups.
to provide novel means and method of forming a
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ied several separate parts which _required numer-V
ous operations during the manufacturefthereof.
goggle of the above nature which will be economif
cal -and simple to manufacture with the major
parts of saidgoggle being formed in integral re
Another diiiiculty encountered with construc-.
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lation with each other.
.
' It will be apparent that constructions .of this na
ture were costly to manufacture, as they embod
Another object of the invention is to provide
novel means and methods of inserting and securT
tions of this nature is that after the lenses have
beenl frequently changedr or replaced, the thread
ed portions of the eyecups and retaining rings
have atendency to wear, thus making it impos
ing leases in the goggle eyecups without the useof
sible to properly support the lenses within the
retaining rings or other separable parts.
Another object is to provide ventilation means 15 eyecups, and therefore necessitating the replace
ment of the eyecups or retaining rings.
.,
integrally formed in the eyecups adjacent the lens
In goggles of this nature a large variety of ven-v_
receiving grooves to prevent the lenses from fog~
tilating means have been used in the past, all of
ging,
which required the use of Vseparable partsA which
Another object is to provide ventilation means
of the above nature whereby the edge of the lenses 20 were adapted to be attached t0 diiïerentportions
of the eyecups.V It is quite apparent that’separa
willl form a portion of the walls of the `Ventilating
ble parts such as metal screens, apertured plates,
raised louvers, etc. would greatly increase the‘cost
‘ Another object is to provide further Ventilating
oi.' manufacture of the goggles.
means forthe eyecups which will eliminate the
apertures.
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use of other separable parts such as metal screens 25
or apertured plates.
"
Other objects and advantages of the invention
will become apparent from the following descrip
tion taken in connection with the accompanying
It, therefore, is one of the primary objects of
the'present invention to overcome the above dif
ñculties by forming all of the‘req'uiredk parts in
integral relation with each other. -
l
Referring more particularly tov the drawing
drawing and it will be apparent that many 30 wherein like characters of reference designate
the parts throughout the several views, _the gog
changes may be made in the details of construe»
gle embodying the invention, as shown in Fig. 1
-tion, arrangement of parts and methods shown
toFig. 4 inclusive, comprises broadly a pair
and` described, without departing fromthe spirit
of the invention as expressed in the accompany
ing claims.
of moulded eyecups I0. of yany suitable >umould-r
35 able material such as cellulose acetate, cellulose
nitrate, methyl-methacrylate,- artificial resins,
I, therefore, do not wish to be limited to the ex
act details and arrangements shown and described
etc.
of illustration.
nasal sides by means of. a flexible bridge member>
40 I I. The bridge member~ i I comprisesa plurality
.t Referring to the drawing:
Fig. l is a front View of the goggle embodying
the invention.
Fig. 2 is a top plan view of the goggle shown in
Fig. 1 with a part thereof shown in section.
Fig. 3 is a fragmentary sectional view of lthe 45
goggle taken on line 3-3 of Fig. l.
`
Fig. 4_ is a fragmentary sectional view of a mod
ified form of the invention.
,
’ The eyecups II) are connected together at their
` as the preferred form only has been given by way`
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of hollow ball members I2, which are connected
together by loose link members I3, vwhich' are '
headed over on the inside of the hollowballs I2,
so that the series of hollow balls I2 and the link
members I3 will have the action of a.link chain.
As shown in Fig. 2, the eyecups I0 are provided
with suitable openings I4 at their nasal sidesY
through which the ends of the bridge member II
are inserted. The bridge member II is held in
In the past with goggles of this nature the
lenses were usually supported in position in the 50 adjusted relation with the eyecups by means of
the latches I5 which are pivotally attached toeyecups by means of retaining rings. These rings
the inner walls of thev eyecups by means of pins
were provided with a portion which was adaptedr
orv the like IB. The latch members' I5 are pro-`V
to overlie a> portion ,of the eyecups and -to be
vided with slotted ends I 1 which are adapted to
threadedly connected thereto. These retaining
vrings were provided- with an inner annular lip 55 straddle any one of the link members I3 >to se#
2,407,518
3
cure the bridge member to the eyecups in adjusted
relation therewith.
of the lenses into the interior of the said eyecups,
A tu'bular member I8 of soft rubber or any
other suitable soft heat resisting material may
as shown by the arrows 26.
It will be seen that the air thus admitted into
the interior of the eyecups will be directed sub
be slipped over the balls l2 to provide a comfort
stantially across the inner surfaces of the lenses
able contact between the bridge member and the
to insure a like temperature adjacent the inner
suriacesof the lenses as the temperature on the
outer surfaces of the lenses.
Further ventilation means have been provided
nose of the wearer.
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The eyecups l0 are preferably moulded with a
face formed contacting portion I9 which is
adapted to ñt snugly with the contour of the face. „[10“ in the eyecups l0 to insure comfort to the eyes,
The eyecups are provided at their extreme -outer
and those parts of the face of the wearer that are
ends with elongated slots 20 which are adapted
v-conñned within the said eyecups. This ventila
to receive »a suitable headband 2| for supporting
tion means comprises a plurality of openings 21
the eyecups upon the face ofthe wearer.
located in the rearwardly extending side por
The eyecups I0 are provided with lens receiv
tions of the eyecups between the lens receiving
ing grooves 22 formed about the inner periphery
grooves and the headband attachment means.
of the eyecups opposite the facecontacting edge.
The saidopenings 21 may be formed when the
The lens receiving groove-s 22 are shaped to sub
eyecups are moulded or may be formed by drill
stantially the shape of the bevelled edgesv ofthe
ing', Piercing or the like after said eyecups are
lenses and are adapted‘to receive the lenses 23, 20 moulded.
which may be of any desired type such as clear,
Fig. ílshows a modification of the Ventilating
colored lenses, protective lenses, etc.
means wherebyvthe Ventilating grooves 25 adja
’ The lenses 23v are inserted in the lens grooves
cent the lenses 23 may be formed by milling or
22,’by heating the eyecups l0 adjacent the lens
the like after the eyecups are mouldably fonmed.
grooves an amount suiiicient to soften the mate
The eyecups lll, although described above as
rial and allow the eyecups to be stretched. The
being formed of plastic material which may be
lenses 23 are then snapped into place. After the
heated and stretched in the vicinity of the lens
lenses have been positioned. within the lens
receiving groove, may be initially molded to a size
grooves 212 the Veyecups are allowed to cool there
greater than the diameter of the lens» in the
by causing the material to shrink about the edges 30 vicinity of the lens receiving groove. With the
of the lenses.A It will be seen that with this
latter arrangement, the eyecups are formed of a
plastic material which may be injection molded
method the lenses 23 will be held securely within
the eyecups 22. When the lenses are to be
whereby the material of the eyecup,.when re
changed, or replaced, the eyecups are heated ad
moved from the mold, will have an internalfstrain
jacent the lens grooves, and the lenses may be 35 which upon subsequent heating may be relieved
readily snapped out and new lenses inserted.
causing the material of the eyecups to shrink.
The eyecups l0 are each provided with an in
By forming the eyecup to an initially larger size
ternal lip or shoulder 24 adjacent the gro-ove 22
than the lens, it is quite apparent that the lens
may be positioned in alignment with the lens
to form a backing _support for the lenses. This
will prevent the lenses from being forced inward 40 receiving groove, the assembly then heated in
ly by a blow or the like against the said lenses.
amount suiiicient to relieve the internal strain in
To prevent fogging of the lenses, suitable ven
the material 'to cause said material tofshrink`
tilation means have been provided in the form of
about the contour edge of the lens and thereafter
a plurality of grooves or recesses 25, said grooves
allowed to cool to retain the lens in position in
being spaced about the inner portion of the eye
- the groove. In this manner, the initial'stepiof
heating and stretching the eyecup to permit in
cups adjacent the lens grooves, as best shown in
Fig. 3. The grooves 25 are adapted to -be mould
sertion of the lens in the lens groove is'y not
necessary.
ably formed in the eyecups when the eyecups
themselves aremoulded or may thereafter be cut
As a further modification, the only part of the
if desired.
,
eyecup having the lens receiving groove therein
may be formed initially larger in diameter than
It is particularly pointed out that the spaced
the lens so that only said part of the eyecup need
grooves o_r recesses 25 are so formed that the base
be heated and permitted to shrink.
of. each extends inwardly, from the front edge of
With the latter arrangement, the part of the
the eyecup, about the contour edge of the lens
eyecup shaped to ?lt the face may be formed'to a
below'the depthof the'lens groove 22 to provide a
definitely controlled size during the injection
space vbetween said lens edge and the base, and
molding.
thence turns inwardly below the plane of the lip
In the case where the entire eyecup is injection
or shoulder 24 substantially in the direction of
molded to a size larger than that required for the
the plane of the inner' surface of the lens. The'
depth to which the grooves or recesses 25 are 60 final eyecup, care must be exercised in control
formed is controlled so that sufficient clearance
about the contour edge‘of the lens will exist after
the lens hasA been secured within the groove 2_2.
The internal lip or shoulder 24 increases the
length of the groovesin the direction of the plane
of the lens and functions as shunt means for de
ling the subsequent shrinking whereby the vfinal
size and shape of the eyecup will be that'required
to ñt the wearer. This may be controlled by
forming the eyecup to an initial size and-with a
given amount of strain therein so that when heat
ed to relieve said strain, the eyecup will assume
the desired final shape and size required.
ll'ecting'air entering'the grooves in the direction
of the plane of the inner surface of the lens.
From the foregoing description, it will be seenV
that simple, efficient, and economical means and
It will `be seen that when the lenses 23 are in 70 methods have been provided for accomplishing
all the objects and advantages of the invention.
serted in the eyecups l0 that the bevelled edges of
Having described. my invention, I claim:
the lenses 23, adjacent the Ventilating grooves
l. In a device of the character described apair
25 and in cooperation therewith, will formven‘
of eyecups _formed of heat expandable plastic
tilation openings whereby air will flow from eX
teriorly of the eyecups about the >bevelled edges
material, each of said eyecups having. anintegral.
edge portion shaped substantially to ‘ñt the face
2,407,518
5
of the wearer and having an opposed integral
portion formed with an ‘inner lensI receiving
groove and a plurality of radially disposed spaced
grooves extending transversely of the lens re~
ceiving groove with the said spaced grooves being
o-f a greater depth than the depth of the lens
receiving groove and a lens located within said
lens receiving groove with the contour edge
thereof in intimate engagement with said groove
between the respective transversely extending
grooves, with the base of the respective trans
versely extending grooves spaced from the edge of
the lens and with the forward circumferential
edge of the portion having the lens receiving
groove therein being of a circumferential dimen
sion less than the greatest circumferential dirnen»
sion of the lens, the integral side wall on the tein-V
poral side of each eyecup being of a thickness
much less than the thickness of the remaining
side walls of the eyecup and having a plurality of
spaced openings extending therethrough.
2. In a device of the character described a pair
of eyecups formed of heat expandable plastic
material, each of said eyecups having an integral
edge portion shaped substantially to ñt the face
of the wearer and having an opposed integral
portion of increased thickness formed' with an
inner bevelled lens receiving groove therein and
a plurality of radially disposed spaced grooves eX
tending transversely of the lens receiving groove
with the said spaced grooves being of a greater
depth than the depth' of the lens receiving groove
anda lens located within said lens receiving
groove with the contour edge thereof in intimate
engagement with said groove between the respec
tive transversely extending grooves, with the base
of the respective transversely extendingV grooves
spaced from the edge of the lens and with the
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forward circumferential edge of the portion hav
ing the lens receiving groove therein being of a
circumferential dimension less than the greatest
circumferential dimension of the lens, the in
tegral side wall on the temporal side of each eye
cup being of a. thickness much less than the
thickness of the remaining side walls of the eye
cup and having a plurality of spaced openings ex
tending therethrough.
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3. In a device of the character described a pair
of eyecups formed of heat expandable plastic
material, each cf said eyecups having an integral
edge portion shaped substantially to fit the face
of the wearer and having an opposed integral
r portion formed with an inner lens receiving
groove and a plurality of radially disposed spaced
grooves extending transversely of the lens receiv
ing groove with the said spaced grooves being of
a greater depth than the depth of the lens re
ceiving groove and a lens located within said lens
receiving groove with the contour edge thereof
in intimate engagement with said groove between
the respective transversely extending grooves,
with the base of the respective transversely ex
tending grooves spaced frorn the edge of the lens
and with the forward circumferential edge of the
portion having the lens receiving groove therein
being of a circumferential dimension less than
the greatest circumferential dimension of the'
lens, the integral side wall on the temporal side
of each eyecup being of a thickness much less
than the thickness of the remaining side walls of
the eyecup and having a plurality of spacedopen
ings extending therethrough, said integral edge
portion shaped substantially to flt the face of
the wearer having a slotted headband receiving
portion adjacent the temporal sides thereof.
Y
GEORGE H. SCI-IAUWEKER.
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