U.S. patent application number 12/327810 was filed with the patent office on 2010-06-03 for structure for safety helmet.
Invention is credited to Tsan-Jee CHEN.
Application Number | 20100132096 12/327810 |
Document ID | / |
Family ID | 42221466 |
Filed Date | 2010-06-03 |
United States Patent
Application |
20100132096 |
Kind Code |
A1 |
CHEN; Tsan-Jee |
June 3, 2010 |
STRUCTURE FOR SAFETY HELMET
Abstract
A structure for a safety helmet comprising an
extendable/retractable visor. The visor is connected on each side
by a connective part to a slotted moveable seat having a saw-tooth
shaped position-limiting slot engaging a protrusion to control the
position of the visor. The moveable seat is connected to a
connective portion having a shaft with one or more protrusions
engaging a connective hole with one or more indentations on the
moveable seat. A seating unit having one or more engagement
elements for affixation to the helmet is connected via a slot to a
protrusion on the inside of a push seat. The protrusion has a
threaded hole which engages the connective hole of the connective
portion and is fastened thereto, e.g. by a screw. Upon assembly and
fixation to the helmet, the visor may be extended or retracted by
pushing on the push seat.
Inventors: |
CHEN; Tsan-Jee; (Taipei,
TW) |
Correspondence
Address: |
PAI PATENT & TRADEMARK LAW FIRM
1001 FOURTH AVENUE, SUITE 3200
SEATTLE
WA
98154
US
|
Family ID: |
42221466 |
Appl. No.: |
12/327810 |
Filed: |
December 3, 2008 |
Current U.S.
Class: |
2/425 ; 2/15 |
Current CPC
Class: |
A42B 3/226 20130101 |
Class at
Publication: |
2/425 ; 2/15 |
International
Class: |
A42B 3/22 20060101
A42B003/22 |
Claims
1. A structure for a safety helmet, comprising: a visor having a
connective part disposed on each side thereof and a protruding
connective element disposed on each connective part; two moveable
seats, each corresponding to one of the connective parts of the
visor, a slot being disposed on the front side of each moveable
seat to engage the corresponding connective part of the visor, a
hole being provided adjacent to said slot to mate with the
protruding connective element of the corresponding connective part,
a position-limiting slot whose inner part has a saw-toothed shape
disposed on the outer side of each of the two moveable seats, a
connective hole having at least one indentation disposed at a
position posterior to the position-limiting slot, and a hole
disposed on the rear part of each of the two moveable seats; a
connective portion having a shaft disposed on the inner side
thereof for engagement with the corresponding hole of the moveable
seat, at least one protrusion disposed on said shaft, and a
connective hole disposed at the posterior end of the connective
portion; a seating unit having at least one fastening protrusion
disposed on the inner side thereof and a slot disposed on a central
part of the seating unit, wherein the at least one fastening
protrusion is for affixing the said seating unit to the helmet; and
a push seat having a protrusion disposed on a central part of the
inner side thereof to engage with the slot of the seating unit, a
threaded hole provided on an end of the protrusion, at least one
engagement element disposed near the end of the protrusion to press
against the slot of the seating element to connect the push seat
with the seating unit, the end part of the protrusion being
inserted into the connective hole of the connective portion, and a
fastener for affixing the push seat to the connective portion by
means of the threaded hole.
2. The safety helmet structure of claim 1, wherein the at least one
fastening protrusion is fitted to a safety helmet so as to allow
the upward and downward motions of the visor.
3. The safety helmet structure of claim 1, wherein a
position-limiting protrusion of a helmet is affixed inside the
position-limiting slot.
4. The safety helmet structure of claim 1 wherein a plurality of
indentations are provided on the connective hole and a plurality of
protrusions are provided on the shaft of the connective portion so
that the plurality of indentations of the connective hole are
respectively engaged with the plurality of the protrusions of the
shaft.
5. The safety helmet structure of claim 1 wherein the fastener is a
screw.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The invention generally relates to a structure used for a
safety helmet. More particularly, the invention relates to a safety
helmet structure which provides a retractable visor that may be
fitted onto a safety helmet to block the sunlight.
[0003] 2. Description of the Prior Art
[0004] Most of the visors fitted on the safety helmets on the
market are transparent to allow riders to see clearly. If the
sunlight becomes too strong or shines directly on the eyes, many
riders would wear sunglasses to weaken the sunlight; alternatively,
some riders may replace the transparent visor with a
light-reflective visor or a colored visor.
[0005] Though either way may weaken the sunlight, a rider can not
take out his sunglasses from his bag when his motorcycle is in
motion. Also, though a colored visor can effectively block the
sunlight; such visor would make it difficult for him to see clearly
during the nighttime and may even cause an undesirable accident to
take place.
[0006] From the above, we can see that the safety helmet of the
prior art has many disadvantages and needs to be improved.
SUMMARY OF THE INVENTION
[0007] The object of the present invention is to provide a
retractable visor that may be fitted onto a helmet to block or
weaken the sunlight.
[0008] The safety helmet structure of the present invention
comprises a visor, two moveable seats, a connective portion, a
seating unit and a push seat. A connective part is disposed on each
side of the visor. A protruding connective element is disposed on
each connective part. The two moveable seats are connected with the
connective parts through the slots. A position-limiting slot is
provided on the outer side of the moveable seat. Each
position-limiting protrusion is held in the corresponding
position-limiting slot of each moveable seat. A connective hole is
provided at a position posterior to the position-limiting slot.
Several indentations may be provided on the connective hole. A hole
is provided on the rear part of the moveable seat. The moveable
seat may be connected with the helmet through the hole. At least
one protrusion is disposed on the connective portion. A connective
hole is provided on the posterior end of the connective portion.
The connective portion may be connected with the connective hole of
the moveable seat by means of the shaft. The seating unit is
fixedly held on the outer side of the helmet through the fastening
protrusion. A protrusion is disposed on the central part of the
inner side of the push seat and may engage with the slot of the
seating unit. At least one engagement element is disposed near the
end of the protrusion and may fixedly hold the push seat in
position. Also, the front part of the protrusion may be inserted
into the connective hole of the connective portion, and a fastener
used to affix it. Therefore, the connective portion may be
connected with the protrusion. Then, the assembled components are
fitted to a safety helmet. By pushing the push seat forward or
backward, a user may extend or retract the visor through the
inter-linking of the components.
[0009] The features and advantages of the present invention will be
fully understood and appreciated from the following detailed
description of the accompanying Drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is an exploded view of the safety helmet structure of
the present invention.
[0011] FIG. 2 is a perspective view showing the safety helmet
structure of the present invention in an assembled condition.
[0012] FIGS. 3A and 3B illustrate how the safety helmet structure
of the present invention is used after fitting to a safety
helmet.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0013] As illustrated in FIGS. 1 and 2, the safety helmet structure
of the present invention comprises a visor 1, two moveable seats 2,
a connective portion 3, a seating unit 4 and a push seat 5.
[0014] A connective part 11 is disposed on either side of the visor
1. A protruding connective element 111 is disposed on each
connective part 11.
[0015] A slot 21 is disposed on the front side of each moveable
seat 2. A hole 22 is provided adjacent to the slot 21. A
position-limiting slot 23 is disposed on the outer side of the
moveable seat 2. The inner part of the position-limiting slot 23
has a saw-toothed shape. A connective hole 24 is provided at a
position posterior to the position-limiting slot 23. At least one
indentation 241 is provided on the connective hole 24. A hole 25 is
provided on the rear part of the moveable seat 2. Therefore, the
slot 21 may engage with the corresponding connective part 11 of the
visor 1, and the protruding connective element 111 may mate with
the hole 22. A position-limiting protrusion 61 of a helmet may be
held inside the position-limiting slot 23. See FIGS. 3A and 3B.
[0016] A shaft 31 is disposed on the inner side of the connective
portion 3. At least one protrusion 311 is disposed on the shaft 31.
The shaft 31 may engage with the corresponding connective hole 24
and the protrusion 311 may mate with the at least one indentations
241. A connective hole 32 is provided on the posterior end of the
connective portion 3.
[0017] At least one fastening protrusion 41 is disposed on the
inner side of the seating unit 4. A slot 42 is provided on the
central part of the seating unit 4. Each seating unit 4 is affixed
to the helmet by means of the at least one fastening protrusion
41.
[0018] A protrusion 51 is disposed on the central part of the inner
side of the push seat 5. A threaded hole 511 is provided on the end
of the protrusion 51. At least one engagement element 512 is
disposed at the end of the protrusion 51. The protrusion 51 may
engage with the slot 42 of the seating unit 4, and the engagement
element 512 may press against the slot 42; therefore, the push seat
5 may connect with the seating unit 4. Also, the front part of the
protrusion 51 may be inserted into the connective hole 32, and a
fastener (not shown) may be used to affix it with the threaded hole
511. Therefore, the connective portion 3 may be connected with the
protrusion 51. The said fastener may be a screw.
[0019] The aforementioned components are first assembled, and then
the assembled components are fitted to a safety helmet.
[0020] Now referring to FIGS. 3A and 3B, which show how the
structure of the present invention is used. When a user wants to
extend the visor 1, he only has to push the push seat 5 forward.
Because the protrusion 51 is linked with the connective portion 3,
the connective portion 3 is moved forward. Also, because a hole 25
which is at the rear part of each moveable seat 2 is affixed to the
inner surface of the helmet 6, the visor 1 is pushed downward by
the connective portion 3, as illustrated in FIG. 3A. Now the visor
1 is extended and the sunlight may thus be blocked by the visor 1.
When the user wants to retract the visor 1, he only has to push the
push seat 5 backward. Because the protrusion 51 is linked with the
connective portion 3, the connective portion 3 is moved backward.
Furthermore, because a hole 25 which is at the rear part of each
moveable seat 2 is affixed to the inner surface of the helmet 6,
the visor 1 is pushed upward by the connective portion 3, as
illustrated in FIG. 3B. Now, the visor 1 is retracted into the
helmet 6.
[0021] A position-limiting protrusion 61 is disposed on either side
of the helmet 6. Each position-limiting protrusion 61 is held in
the corresponding position-limiting slot 23. Because the inner part
of the position limiting slot 23 has a saw-toothed shape, several
positions may be selected for each position-limiting protrusion 61
of the helmet 6.
[0022] Many changes and modifications in the above described
embodiment of the invention can, of course, be carried out without
departing from the scope thereof. Accordingly, to promote the
progress of science and the useful arts, the invention is disclosed
and is intended to be limited only by the scope of the appended
claims.
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