U.S. patent number 3,708,224 [Application Number 05/146,303] was granted by the patent office on 1973-01-02 for ventilated goggles.
This patent grant is currently assigned to Textron Inc.. Invention is credited to Frank W. Lindblom.
United States Patent |
3,708,224 |
Lindblom |
January 2, 1973 |
VENTILATED GOGGLES
Abstract
A ventilated goggle having a face piece with a front wall, a top
wall, a bottom wall, and side walls. The front wall is defined by a
pair of laterally spaced wall sections that are substantially
parallel to each other with each having an aligned aperture therein
to allow the wearer to see therethrough. The open space between the
laterally spaced wall sections form a channel that extends around
the inner surface of the front wall and a plurality of spaced
locking lugs are formed integrally with the outer walls of said
face piece such that they project inwardly into said channel. The
goggles have a single lens which is detachably positioned in said
channel and the lens comprises a substantially planar central body
shaped like the letter B laying on its side and has a plurality of
spacers positioned at intervals around its periphery. The spacers
are of a thickness greater than the thickness of the central body
with that thickness extending laterally outwardly from both sides
of the central body. The peripheral edge of the central body
between the spacers is recessed inwardly from the peripheral edge
of the spacers to form ventilation paths between the spacers when
the lens is mounted in the channel.
Inventors: |
Lindblom; Frank W. (Warwick,
RI) |
Assignee: |
Textron Inc. (N/A)
|
Family
ID: |
22516768 |
Appl.
No.: |
05/146,303 |
Filed: |
May 24, 1971 |
Current U.S.
Class: |
351/62; 351/154;
2/437 |
Current CPC
Class: |
A61F
9/028 (20130101) |
Current International
Class: |
A61F
9/02 (20060101); G02c 011/08 () |
Field of
Search: |
;351/62,154 ;350/61,63
;2/14K,14N,14P |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Schonberg; David
Assistant Examiner: Leonard; John W.
Claims
What is claimed is:
1. A ventilated goggle comprising a face piece adapted to fit about
the eyes of the wearer, said face piece having a front wall, a top
wall, a bottom wall and side walls, said front wall being defined
by a pair of laterally spaced wall sections that are substantially
parallel to each other with each having aligned apertures to allow
the wearer to see therethrough, the open space between said
laterally spaced wall section forming channel that extends around
the inner surface of said front wall, a plurality of spaced locking
lugs being formed integrally with the outer walls of said face
piece and extending inwardly into said channel, a single lens
having its peripheral edge detachably positioned in said channel,
said lens comprising:
a substantially planar central body having a plurality of
integrally molded spacers positioned at intervals around the
periphery of the central body,
said spacers being of a thickness greater than the thickness of
said central body with said thickness extending laterally outwardly
from both sides of said central body,
the peripheral edge of said central body between said spacers being
recessed inwardly from the peripheral edge of said spacers to form
ventilation paths between said spacers when the lens is mounted in
said channel.
2. A ventilated goggle as recited in claim 1 wherein said face
piece is made of a resilient material.
3. A ventilated goggle as recited in claim 1 wherein the top wall
of said face piece has a flange along the forehead contour portion
comprised of a top flange and a bottom flange which acts to
stabilize the angle at which the top wall of the face piece
projects from the face of the wearer.
4. A ventilated goggle as recited in claim 1 including a spacer
located at the bridge of the nose position of the lens which spacer
has a central locking notch formed in the shape of a chord of a
circle.
Description
BACKGROUND OF THE INVENTION
This invention relates generally to goggles and more particularly
to industrial goggles adapted for use in connection with chipping,
grinding, and other industrial operations during which it is
desired to protect the eyes from heat, sparks, and other flying
particles. A particularly troublesome problem in the past has been
a lack of suitable ventilation means in the design of the goggles
to prevent fogging. It is well known in the art to provide
ventilation openings of various kinds around the perimeter of the
goggle lenses and along the side pieces of the goggles. One of the
problems of the past, however, has resulted from the complicated
designs of the ventilation means and the time consuming molding
operations required in the manufacturing of the goggles. Most of
the prior goggles required a plurality of parts, each of which have
to be separately molded, and all of which added considerably to the
cost of manufacture of the goggles.
One of the principal objects of the invention is to provide a new
goggle having novel ventilation means which are both economical and
simple to manufacture with the major parts of said goggles being
formed of integral parts.
Another object of the invention is to provide a face piece
fabricated to comfortably fit the facial structure of most
individuals and one whose structure acts to stabilize the angle at
which the face piece protrudes from the front of the wearer.
An additional object of the invention is to provide a novel and
simplified structure for attaching the lens to the face piece which
eliminates the need for metallic snap fasteners formed either on
the lens or in the face piece structure.
A further object of the invention is to provide a novel structure
for locating or centering the lens members so that insertion of the
lens member is facilitated.
SUMMARY OF THE INVENTION
Applicant's novel ventilated goggles are assembled from only three
parts, a face piece, a lens, and a head band. The face piece is an
integrally molded resilient member having a front wall, a top wall,
a bottom wall and a side wall. The front wall is defined by a pair
of laterally spaced wall sections that are substantially parallel
to each other and each have aligned apertures therein for allowing
the wearer to see therethrough. The open space between the
laterally spaced wall sections form a channel that extends around
the inner surface of the front wall and a plurality of spaced
locking lugs are integrally formed with the outer walls of the face
piece and protrude inwardly into the channel. The top and bottom
wall of the face piece each have a flange running along their inner
edge which contacts the face of the wearer. These flanges have
integral portions which extend both upwardly and downwardly and
bear upon the face of the wearer, thus stabilizing the angle at
which the face mask protrudes from the face of the wearer. The
second component of the goggles is the lens which consists of a
substantially planar central body shaped like the letter B laying
on its side and having a plurality of spacers integrally molded
thereon and positioned at intervals around the periphery of the
central body. The spacers are of a thickness greater than the
thickness of the central body with this thickness extending
laterally outwardly from both sides of the central body. The
peripheral edge of the central body between the spacers is recessed
inwardly from the peripheral edge of the spacers to form
ventilation paths between the spacers when the lens is detachably
mounted in the channel. The operation of inserting the lens into
the face piece requires only that the locking notches formed in the
spacers on the lens be forced onto the locking lugs formed within
the channel of the face piece. The central locking notch of the
lens mates with the central locking lug of the face piece, thus
acting as a convenient method for centering the lens while
inserting it into the face piece.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view of the ventilated goggles;
FIG. 2 is a front elevation view of the face piece of the
goggles;
FIG. 3 is a bottom plan view of the face piece of the goggles;
FIG. 4 is a side elevation view of the face piece of the
goggles;
FIG. 5 is a cross section taken along line 5--5 of FIG. 2;
FIG. 6 is a front elevation view of the lens;
FIG. 7 is an end elevation view of the lens;
FIG. 8 is a cross section taken along line 8--8 of FIG. 6; and
FIG. 9 is an exploded partial view of a cross section illustrating
the ventilation path between the lens and the face piece when
assembled.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Applicant's novel ventilated goggles will now be described by
referring to the drawings, with attention being directed to FIGS. 1
through 5 to explain the structure of the face piece generally
designated numeral 10. The face piece has a front wall 11, a top
wall 12, a bottom wall 14 and side walls 16. Along the inside edge
of the top wall the fore head contour portion 18 is comprised of a
flange having a top section 20 and a bottom section 22. The central
face contour portion 24 along the inner edge of the bottom wall has
a flange comprised of a top section 26 and a bottom section 28. The
side walls have integrally formed ears 30 with head strap slots 32
into which a head strap (not shown) would be inserted. The front
wall 11 is defined by a pair of laterally spaced wall sections 34
and 35 that are substantially parallel to each other with each
having aligned apertures 36 and 37 respectively forming the viewing
aperture. The open space between the wall sections forms a channel
38 that extends around the inner surface of the front wall. A
plurality of spaced locking lugs are formed integrally with the
outer walls of said face piece and they extend inwardly into the
channel. They are designated central locking lug 40 and auxiliary
locking lugs 42. The face piece is formed in an integrally molded
member made preferably of a resilient material which allows the
facial contour portions to readily conform to the contour of the
individual wearer.
The lens 50 is illustrated in FIGS. 6 through 8. It has a central
body 52 which is substantially in the shape of a sheet of material
shaped like the letter B laying on its side. Around the periphery
of the central body are a plurality of spacers 54 which are
positioned at intervals in order to provide ventilation paths 56.
Selected spacers have notches 57 formed along their outer periphery
for mating engagement with the auxiliary locking lugs 42 of the
face piece. The spacer on the lens in the nose bridge area has a
central locking notch 58 which aids in centering the lens in the
face piece as it matingly engages the central locking lug 40. The
assembly and disassembly of the goggles is thus readily seen to be
quite simple and being of a structure wherein the face piece is
integrally molded and the lens member has integrally molded spacers
around its periphery to make for an economically manufactured and
assembled ventilated goggle.
The actual manner in which the goggles are ventilated results from
the spacers 54 being of a thickness greater than the thickness of
the central body of the lens with that thickness extending
laterally outwardly from both sides of the central body 52. The
peripheral edge of the central body between said spacers is
recessed inwardly from the peripheral edge of the spacers, thus
forming a ventilation path 56 between said spacers when the lens is
mounted in the channel 30 as illustrated in FIG. 9. Applicant's
novel structure is thus seen to provide a novel manner for
ventilating his goggles while at the same time designing them from
two easily molded members whose assembly and disassembly can be
accomplished with a minimum expenditure of time.
* * * * *