Apparel – Guard or protector – For wearer's head
Reexamination Certificate
2001-10-22
2003-05-06
Lindsey, Rodney M. (Department: 3765)
Apparel
Guard or protector
For wearer's head
Reexamination Certificate
active
06557185
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention is to provide an improved device for affixing a lens onto a safety helmet. More particularly, the invention relates to a device that can affix the windshield lens of safety helmet to the helmet housing with easy and convenient assembling and disassembling without using assembling tools and screw fixing members.
(b) Description of the Prior Art
In general, the assembling structure between helmet housing
1
and windshield lens
2
of the convention safety helmet is schematically shown in FIG.
1
. Both sides of the windshield lens
2
each have a clicking-positioning ring
20
with a click structure and a void inner part. The corresponding both sides of helmet housing
1
has two screw holes
10
,
11
. In addition, each of the both sides of the helmet housing uses an ear cap
3
to mount the windshield lens
2
to the helmet housing
1
. The structure of ear cap
3
includes ear holes
30
,
31
with respect to the screw holes
10
,
11
at the two opposite sides of the helmet housing
1
. In addition, one ear hole
30
has a clicking base
300
, which is located at the inner rim of the ear hole
30
and can be used by the clicking-positioning ring
20
of windshield lens
2
to affix thereon. The clicking base
300
also provides a clicking-position function when the windshield lens
2
is lift up in angle or closed. By the foregoing assembling, it additionally associates with two screw pieces
40
to screw into the ear hole
30
,
31
of the ear cap
3
, wherein a screwdriver is used to affix the screw pieces
40
. After that, the windshield lens
2
is then mounted on the helmet housing
1
.
Apparently, in the conventional method, when the windshield lens
2
is mounted on the helmet housing
1
, it still needs the tool of screwdriver to tight the screw pieces
40
to accomplish the assembling effect. For the manufacturer, the assembling process is more complicate and inconvenient. For the user, it needs the tool to complete a change (assembling or disassembling). Apparently, it consumes time and cost.
REFERENCES:
patent: 4794652 (1989-01-01), Piech von Planta et al.
patent: 5461731 (1995-10-01), Shida
patent: 6260213 (2001-07-01), Eom et al.
patent: 4417658 (1995-11-01), None
patent: 2759869 (1998-08-01), None
patent: 04185704 (1992-07-01), None
Lindsey Rodney M.
Long Huei Helmet Co.
Pro-Techtor Inter-national Services
LandOfFree
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