Apparel – Guard or protector – For wearer's head
Reexamination Certificate
1999-09-30
2001-01-30
Nerbun, Peter (Department: 3741)
Apparel
Guard or protector
For wearer's head
C002S008600, C002S441000, C002S013000
Reexamination Certificate
active
06178561
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention is related to an improvement in the structure of safety goggles and in particular to one which can be easily manufactured and assembled.
2. Description of the Prior Art
The conventional safety goggles generally includes a primary frame
10
and a lens frame
20
. The primary frame
10
is provided at the top of its front side with two raised seats
101
each having an axial through hole
1011
and an upwardly extending tongue
102
located between the two raised seats
101
. The lens frame
20
is provided at the top with two cavities
201
aligned with the two raised seats
101
and a recess
202
located between the two cavities
201
and aligned with the tongue
102
. The recess
202
is formed with an inclined surface
203
at the front side. The upper portion of the lens frame
20
has an axial through hole
204
aligned with the axial through hole
1011
of the primary frame
10
. When in assembly, the raised seats
101
are first fitted into the cavities
201
with the tongue
102
disposed in the recess
202
and then two pins
30
are inserted from two opposite sides into the holes
204
of the lens frame
20
and the holes
1011
of the primary frame
10
see
FIGS. 1
,
2
and
3
). Accordingly, the lens frame
20
is pivotally connected with the raised seats
101
of the primary frame
10
, so that when the lens frame
20
is turned down on the primary frame
10
, the rim
103
of the primary frame
10
will be just covered by the outer rim
205
of the lens frame
10
thereby making it suitable for protecting one's eyes in gas welding or cutting operation. As shown in
FIG. 4
, the tongue
102
is made of plastic, so that when the lens frame
20
is turned upwards, the rear side of the recess
202
will be rotated to engage with the tongue
102
so as to keep the lens frame
20
in a fixed position.
However, it is necessary to force two pivot pins
30
into the lens frame
20
and the primary frame
10
in order to join them pivotally together thus requiring a lot of time and effort in the assembly. Furthermore, the goggles are easily damaged when the pivot pins
30
are forced into the lens frame
20
and the primary frame
10
. In addition, once the pivot pins
30
are forced into the lens frame
20
and the primary frame
10
, it is no longer possible to disengage the lens frame
20
from the primary frame
10
thereby increasing the difficulties in processing operations.
Therefore, it is an object of the present invention to provide an improvement in the structure of safety goggles which can obviate and mitigate the above-mentioned drawbacks.
SUMMARY OF THE INVENTION
This invention is related to an improvement in the structure of safety Goggles.
According to a preferred embodiment of the present invention, the safety goggles include a primary frame having a top provided with two raised seats and an upwardly extending tongue between the two raised seats, each of the seats having a first pin extending outwardly longitudinally from an end thereof and a second pin extending outwardly longitudinally from another end thereof, a lens frame having a top provided with two cavities aligned with the two raised seats, each of the cavities being formed with a groove and an opening configured to receive the first pin and the second pin respectively, a recess being formed between the two cavities and aligned with the tongue, the recess having an inclined surface at an outer side thereof and a chamfer at an inner side thereof, the chamfer being located close to the opening.
It is the primary object of the present invention to provide an improvement in the structure of safety goggles which can be rapidly assembled.
It is another object of the present invention to provide an improvement in the structure of safety goggles which can be easily manufactured.
It is still another object of the present invention to provide an improvement in the structure of safety goggles which is simple in construction.
It is still another object of the present invention to provide an improvement in the structure of safety goggles which is low in cost.
It is a further object of the present invention to provide an improvement in the structure of safety goggles which is fit for mass production.
The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 2998610 (1961-09-01), Spero
patent: 3901589 (1975-08-01), Bienenfeld
patent: 5533208 (1996-07-01), Tonoyan et al.
A & J
Nerbun Peter
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