U.S. patent application number 10/014272 was filed with the patent office on 2003-04-24 for device for affixing a lens onto a safety helmet.
Invention is credited to Lee, Te Lung.
Application Number | 20030074722 10/014272 |
Document ID | / |
Family ID | 21764478 |
Filed Date | 2003-04-24 |
United States Patent
Application |
20030074722 |
Kind Code |
A1 |
Lee, Te Lung |
April 24, 2003 |
DEVICE FOR AFFIXING A LENS ONTO A SAFETY HELMET
Abstract
The invention provides device for affixing a lens of a safety
helmet. A helmet housing has a base located on each of both sides.
The base has a C-like protruding ring. The protruding ring has an
upward opening gap, wherein an inner side surface has a C-like
groove. A protruding body is located under the protruding ring,
wherein a bottom of the protruding body has a concave clicking
opening. A side front portion of the protruding ring has clicking
protruding body having a top with a slant surface. A windshield
lens of safety helmet has a base plate at each of both sides, which
base plate can be affixed onto the base of the helmet housing. An
inner side of the base has two L-like clicking protruding bodies,
which can be inserted to the C-like groove. A clicking gear is
formed on the base plate at a bottom rim corresponding to the
protruding body of the base. The front portion of the clicking gear
has a position protruding body that can associate with the clicking
protruding body to have the effect of lifting position
restrictions. In this manner, the assembling process can be easily
performed without need of using an assembling tool and a screw
member.
Inventors: |
Lee, Te Lung; (Kang City,
TW) |
Correspondence
Address: |
PRO-TECHTOR INTERNATIONAL
20775 Norada Court
Saratoga
CA
95070-3018
US
|
Family ID: |
21764478 |
Appl. No.: |
10/014272 |
Filed: |
October 22, 2001 |
Current U.S.
Class: |
2/424 ;
2/410 |
Current CPC
Class: |
A42B 3/222 20130101 |
Class at
Publication: |
2/424 ;
2/410 |
International
Class: |
A42B 001/08 |
Claims
I claim:
1. A device for affixing a lens of a safety helmet, comprising: a
helmet housing of safety helmet, having a base located on each of
both sides, a side front portion of the base having a C-like
protruding ring, the C-like protruding ring having an upward
opening gap, wherein an inner surface separated from a C-like wall
of the C-like protruding ring forms a C-like groove, and a
protruding body is located under the protruding ring, wherein a
bottom of the protruding body has a concave clicking opening, and a
side front portion of the protruding ring has clicking protruding
body having a top with a slant surface; and a windshield lens of
safety helmet, having a base plate at each of both sides which base
plate can be affixed onto the base of the windshield lens of safety
helmet, an inner side of the base with respect to a C-like space
separated from the C-like protruding ring has two L-like clicking
protruding bodies with left-right inversing arrangement, wherein a
width separated by the clicking protruding body is greater than an
inner diameter of the C-like protruding ring and less than a
crossing range of the C-like groove, a width of opening gap of the
C-like protruding ring allows to protruding body to be inserted,
and a clicking gear is formed on the base plate at a bottom rim
corresponding to the protruding body of the base of the windshield
lens of safety helmet, wherein the clicking gear has protruding
gear that can match with concave clicking opening to form a
concave/convex clicking state, and a side front part of the
clicking gear has a position protruding body with respect to the
clicking protruding body, used to restrict a position limit;
wherein the helmet housing can use the protruding body of the base
plate at the both sides to insert into the C-like groove of the
windshield lens of safety helmet, wherein the position protruding
body can associate the clicking protruding body of the windshield
lens of safety helmet for performing clicking, the clicking gear
can click with the concave clicking opening of the protruding body,
so as to provide the function for adjusting the windshield lens by
a lifting angle, and assembling process can be easily performed
without need of using an assembling tool and a screw member.
2. The device of claim 1, wherein the base plate with respect to
the base of the C-like protruding ring includes an arc ring to
support each other.
3. The device of claim 1, wherein the opening gap of the base of
the helmet housing is about perpendicular to the protruding body
and the opening gap is located above the clicking protruding body.
Description
BACKGROUND OF THE INVENTION
[0001] (a) Field of the Invention
[0002] 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.
[0003] (b) Description of the Prior Art
[0004] 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.
[0005] 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.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0006] The inventor provides a preferred embodiment for description
as follows:
[0007] First, FIG. 2 is a drawing, illustrating a dissect structure
between the windshield lens of safety helmet 5 and helmet housing
6, according to the invention.
[0008] The helmet housing 6 at each of the both sides has a base 61
affixed by a rivet set 60. The outside of the base 61 at the center
and slightly upper position has an opening gap 620 directing up to
form a C-like protruding ring 62. A C-like groove 63 is formed at
the inner rim of the protruding ring 62 (also see FIG. 12). An arc
protruding body 64 is located under the C-like protruding ring 62.
Two protruding rims 65 are formed at bottom of the protruding body
64 (also see FIG. 3). The concave clicking opening 66 is then
formed between the two protruding rims 65. A clicking protruding
body 67 with a slant surface 670 on top is formed on the C-like
protruding ring 62 at side front portion and slightly lower
position. The clicking protruding bodies 67 have an opening gap 620
about at 90 degrees perpendicular direction, such as the .alpha.
angle shown in FIG. 3. The opening gap 620 is located above the
clicking protruding bodies 67.
[0009] The windshield lens of safety helmet 5 has a base plate 50
at each side of the helmet housing 6 to affix on the base 61. The
inner side of the base plate 50 with respect to the C-like space
separated by the C-like protruding ring 62 of the base 61 is
equipped with two L-like clicking protruding bodies 51, 52 with
left-right inversing direction (also shown in FIG. 11). The two
clicking protruding bodies 51, 52 each have a slant surface to ease
the insertion into the C-like groove 63. The separated width A by
the two clicking protruding bodies 51, 52 is larger than the inner
diameter B1 of the C-like protruding ring 62 but smaller than a
diameter B2 of the C-like groove 63. While assembling, the width of
the opening gap 620 of the C-like protruding ring 62 on the base 61
allows the two clicking protruding bodies 51, 52 of the base plate
50 at two sides of the windshield lens of safety helmet 5 to be
inserted, as shown in FIG. 4. The windshield lens of safety helmet
5 can be inserted to the C-like groove 63 from the bottom of the
L-like clicking protruding bodies 51, 52 and is stopped by the top
rim 621 of the C-like protruding ring 62 with respect to the C-like
groove 63 without sliding off The helmet housing on the helmet
housing 6 has a lifting function. The lifting angle of the
windshield lens of safety helmet 5 can be adjusted and positioned.
An arc clicking gear 53 is formed in the corresponding portion at
the bottom rim of the base plate 50 on both sides of the windshield
lens of safety helmet 5, and facing the base 61 of the helmet
housing 6. The protruding gear 530 of the clicking gear 53 can be
engaged with a clicking concave opening 66 at the bottom of the arc
protruding body 64, whereby a concave/convex coupling state is
achieved. This allows the windshield lens of safety helmet 5 to be
stably affixed on the position for the windshield lens of safety
helmet 5 being lifted-up by any angle. Moreover, in order to have a
limit of lifting angle for the windshield lens of safety helmet 5,
a position clicking protruding body 54 is outwardly formed at the
side front portion of the arc clicking gear 53. The position
clicking protruding body 54 with respect to the clicking protruding
bodies 67 of the helmet housing 6 can form the effect for setting
the maximum position, as shown in FIGS. 5 and 7-8.
[0010] In the foregoing assembling, when the windshield lens of
safety helmet 5 is to be affixed to the helmet housing 6, it only
needs to insert the clicking protruding body 52 at the inner side
front portion of the base plate 50 on the windshield lens of safety
helmet 5 into the C-like groove 63 of the helmet housing 6, as
shown in FIGS. 3 and 4. Then, another clicking protruding body 51
is inserted into along the opening gap 620 of the C-like protruding
ring 62 on the helmet housing 6. In this situation, the windshield
lens of safety helmet 5 is at the lifted-up state by an angle.
Therefore, It the only needs to close the windshield lens of safety
helmet 5, as shown in FIG. 5, wherein the two clicking protruding
bodies 51, 52 is shifted and rotated in the C-like groove 63. At
the same time, the position clicking protruding body 54 of the
windshield lens of safety helmet 5 then is shifted in press along
the top slant surface 670 of the clicking protruding bodies 67 of
the helmet housing 6. When the position clicking protruding body 54
is separated from the top slant surface 670 of the clicking
protruding bodies 67, it would engage with the clicking protruding
bodies 67 to form a clicking-positioning state at the position.
Since the opening gap 620 of the of the base 61 of the helmet
housing 6 is about perpendicular to the position clicking
protruding body 54 of the base plate 50 of the windshield lens of
safety helmet 5 and the opening gap 620 is located above the
position clicking protruding body 54, the windshield lens of safety
helmet 5 is firmly affixed onto the helmet housing 6 without
sliding off. In addition, the arc clicking gear 53 of the base
plate 50 of the windshield lens of safety helmet 5 is engaged with
the concave clicking opening 66 on the helmet housing 6 in a
clicking-positioning state. The lifting angle or close state of the
windshield lens of safety helmet 5 can be freely adjusted through
the arc clicking gear 53 as shown in FIGS. 6, 9, and 10.
[0011] When the windshield lens of safety helmet 5 is to be
detached from the helmet housing 6, it only needs to slightly
push-up the position clicking protruding body 54 of the base on the
windshield lens of safety helmet 5 and cross over the clicking
protruding bodies 67 of the helmet housing 6. After that, the whole
windshield lens of safety helmet 5 can be pulled over, and the
protruding body 51 can be aligned to the opening gap 620 of the
C-like protruding ring 62. As a result, the windshield lens of
safety helmet 5 can be easily detached from the helmet housing
6.
[0012] Therefore, according to the foregoing description, the
invention can assemble the helmet housing onto the windshield lens
of safety helmet at the designed position without need of using any
assembling tools and screw member. The assembling and detaching
process can be easily and promptly achieved. The invention indeed
has significantly improved the function with unexpected result, and
can have great practical use.
[0013] Furthermore, in the foregoing embodiment, the base plate 50
with respect to the C-like protruding ring 62 of the base 61 can be
implemented with a portion of arc ring 55 to support each
other.
[0014] In summary, the present invention has achieved the
application in industry. Moreover, the features of the structure of
the invention have not been disclosed in publication with
satisfying the novelty.
SUMMARY OF THE INVENTION
[0015] Therefore, the inventor has considered and developed to
effectively improve the present invention.
[0016] Therefore, the primary object of the invention is to provide
an improved device for affixing a lens onto a safety helmet. The
invention can assemble the windshield lens of safety helmet on to
the helmet housing 1 without need of using the assembling tools and
the screw assembling parts, so as to ease the assembling and
disassembling process.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 is a dissected drawing, illustrating a conventional
lens of safety helmet for assembling.
[0018] FIG. 2 is a dissected drawing, illustrating a lens of safety
helmet for assembling, according to the invention.
[0019] FIG. 3 is a drawing, illustrating the structure and action
for assembling the lens to the safety helmet in the first part,
according to the invention.
[0020] FIG. 4 is a drawing, illustrating the structure and action
for assembling the lens to the safety helmet in the second part,
according to the invention.
[0021] FIG. 5 is a drawing, illustrating the structure and action
for assembling the lens to the safety helmet in the third part,
according to the invention.
[0022] FIG. 6 is a perspective view, illustrating the assembled
safety helmet, according to the invention.
[0023] FIG. 7 is a side view, illustrating the lens of safety
helmet being lift-up in a large angle, according to the
invention.
[0024] FIG. 8 is a cross-sectional view, illustrating the structure
of FIG. 7 cutting along the line of A-A.
[0025] FIG. 9 is a side view, illustrating the lens of safety
helmet being closed, according to the invention.
[0026] FIG. 10 is a cross-sectional view, illustrating the
structure of FIG. 9 cutting along the line of B-B.
[0027] FIG. 11 is a magnified drawing of FIG. 2 at the position
A.
[0028] FIG. 12 is a magnified drawing of FIG. 2 at the position
B.
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