U.S. patent application number 14/353319 was filed with the patent office on 2014-09-18 for helmet.
This patent application is currently assigned to OGK KABUTO CO., LTD.. The applicant listed for this patent is Takeshi Murakami. Invention is credited to Takeshi Murakami.
Application Number | 20140259311 14/353319 |
Document ID | / |
Family ID | 48191567 |
Filed Date | 2014-09-18 |
United States Patent
Application |
20140259311 |
Kind Code |
A1 |
Murakami; Takeshi |
September 18, 2014 |
HELMET
Abstract
A helmet is provided that can be ventilated without any decrease
in helmet-shell strength. The helmet comprises a helmet shell 3 and
an impact-absorbing member 4 disposed along the inner surface of
the helmet shell 3. The helmet shell 3 has paired right-hand and
left-hand cheek-covering portions 9, and a side hemming member 22
is attached to a lower edge 9a of the cheek-covering portion 9. The
cheek-covering portion 9 has an upwardly cut-out portion 50 formed
on its lower-end side, and the lower edge 9a of the cheek-covering
portion 9 is slanted upward in peak form from both sides toward the
center in front-back direction. The side hemming member 22 has a
wide portion 52 formed so as to swell upward in peak form for
obtaining a wide vertical width in correspondence with the cut-out
portion 50, and the wide portion 52 has an air ejection hole
55.
Inventors: |
Murakami; Takeshi;
(Higashi-Osaka-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Murakami; Takeshi |
Higashi-Osaka-shi |
|
JP |
|
|
Assignee: |
OGK KABUTO CO., LTD.
Higashi-Osaka-shi, Osaka
JP
|
Family ID: |
48191567 |
Appl. No.: |
14/353319 |
Filed: |
November 4, 2011 |
PCT Filed: |
November 4, 2011 |
PCT NO: |
PCT/JP2011/075462 |
371 Date: |
April 22, 2014 |
Current U.S.
Class: |
2/411 |
Current CPC
Class: |
A42B 3/125 20130101;
A42B 3/127 20130101; A42B 3/281 20130101 |
Class at
Publication: |
2/411 |
International
Class: |
A42B 3/12 20060101
A42B003/12 |
Claims
1. A helmet comprising: a helmet shell; and an impact-absorbing
member disposed along an inner surface of the helmet shell, the
helmet shell having a pair of right-hand and left-hand
cheek-covering portions, the right-hand, left-hand cheek-covering
portion being, at its lower edge, fitted with a side hemming
member, the right-hand, left-hand cheek-covering portion having an
upwardly cut-out portion formed on its lower-end side, the lower
edge of the right-hand, left-hand cheek-covering portion being made
in peak form so as to be slanted upward from both sides toward a
center thereof in a front-back direction, the side hemming member
having a wide portion formed so as to swell upward in peak form for
obtaining a wide vertical width in correspondence with the cut-out
portion, the wide portion being formed with an air ejection
hole.
2. The helmet according to claim 1, wherein the side hemming member
has a side engagement portion of U-section which engages the lower
edge of the cheek-covering portion, and a side bend edge portion
protruding from the lower end of the side engagement portion,
wherein that part of the side engagement portion which corresponds
to the wide portion is curved in peak form so as to be slanted
upward from both sides toward the center in the front-back
direction along the lower edge of the cheek-covering portion, and
wherein that part of the side bend edge portion which corresponds
to the wide portion is made as a wide bend edge part which
protrudes downward, while being widened, from the side engagement
portion, the wide bend edge part being formed with said air
ejection hole.
3. The helmet according to claim 1, wherein the outer surface of
the side hemming member is formed with an outside-air guide surface
which is gradually inclined horizontally outwardly as it extends
backward from the rear opening edge of the air ejection hole, or is
gradually inclined horizontally inwardly as it extends forward from
the front opening edge of the air ejection hole.
4. The helmet according to claim 3, wherein a plurality of said air
ejection holes are spaced apart in the front-back direction in the
wide portion of the side hemming member, wherein said outside-air
guide surface is placed between the air ejection holes arranged
adjacent each other in the front-back direction, and is gradually
inclined horizontally outwardly as it extends backward from the
rear opening edge of the front-located air ejection hole toward the
front opening edge of the rear-located air ejection hole.
5. The helmet according to claim 1, wherein said helmet shell has a
chin-covering portion protruding forward from the lower side of the
right-hand, left-hand cheek-covering portion, for covering the
chin-to-mouth region of a helmet wearer, and wherein an air
passageway for causing exhaled air to flow backward for its
movement toward said air ejection hole is formed inside the
chin-covering portion and the cheek-covering portion.
6. The helmet according to claim 5, wherein the impact-absorbing
member situated ahead of the mouth of a helmet wearer is formed
with a mouth communication hole communicating with the front of
said air passageway.
7. The helmet according to claim 5, wherein the lower-end side of
the impact-absorbing member corresponding to the cheek-covering
portion protrudes downward beyond the lower edge of the
cheek-covering portion corresponding to the cut-out portion, and
extends up to the inside of the right and left of the wide portion
of the side hemming member, and wherein the lower side of the rear
of said air passageway is located on the inside of the right and
left of the wide portion of the side hemming member, and
communicates with the air ejection hole of the side hemming
member.
8. The helmet according to claim 5, wherein said air passageway is
formed in between the chin-covering portion as well as the
cheek-covering portion and the impact-absorbing member
corresponding to them by creating, at the outer surface of the
impact-absorbing member corresponding to the chin-covering portion
and the cheek-covering portion, a horizontally-inwardly sunken
passageway-forming groove in the front-back direction.
9. The helmet according to claim 8, wherein the impact-absorbing
member corresponding to the chin-covering portion and the
cheek-covering portion is formed with an inside-air communication
hole communicating with the air passageway from the inner surface
thereof.
10. The helmet according to claim 9, wherein a pair of right-hand
and left-hand cheek pads is disposed inside the impact-absorbing
member corresponding to the chin-covering portion and the
cheek-covering portion, and wherein each of the cheek pads has a
pad communication hole formed therethrough from the inside to the
outside so as to communicate with said inside-air communication
hole.
11. The helmet according to claim 5, wherein a pair of right-hand
and left-hand cheek pads is disposed inside the impact-absorbing
member corresponding to said chin-covering portion and said
cheek-covering portion, the right-hand, left-hand cheek pad having
an insertion locking piece bent upward from the outer-edge side of
the lower end of the cheek pad in the horizontal direction, wherein
the insertion locking piece is passed inside the right and left of
the side hemming member so as to be inserted in between the
chin-covering portion as well as the cheek-covering portion and the
impact-absorbing member corresponding to them, thereby holding the
cheek pads within the impact-absorbing member, and wherein an air
vent is formed in that part of said insertion locking piece which
corresponds to the air ejection hole, and a mesh sheet is
additionally provided in the insertion locking piece so as to cover
the air vent.
12. The helmet according to claim 11, wherein the front ends of,
respectively, the right-hand and left-hand cheek pads are spaced
apart in the horizontal direction at the front of the mouth of a
helmet wearer, and wherein the impact-absorbing member situated
ahead of the mouth of the helmet wearer is formed with a mouth
communication hole communicating with the front of said air
passageway, the mouth communication hole being placed between the
front ends of, respectively, the right-hand and left-hand cheek
pads.
13. The helmet according to claim 1, wherein paired right-hand and
left-hand chin bands are fixedly coupled to the inner-surface sides
of the right-hand and left-hand cheek-covering portions,
respectively, so as to extend downward through the inside of the
right and left of the side hemming member, and wherein the wide
portion of the side hemming member is placed in a position
corresponding to the chin band.
14. The helmet according to claim 5, wherein a pair of right-hand
and left-hand cheek pads is disposed inside the impact-absorbing
member corresponding to said chin-covering portion and said
cheek-covering portion, wherein the lower-end side of the
impact-absorbing member corresponding to the cheek-covering portion
is made concavely above the wide portion of the side hemming member
and the lower part of the cheek pad, and wherein a cavity
passageway is formed between the wide portion of the side hemming
member and the lower part of the cheek pad under the
impact-absorbing member, and the lower side of said air passageway
communicates with the cavity passageway.
15. The helmet according to claim 14, wherein the cheek pad has, in
its lower part, a pad communication hole formed therethrough from
the inside to the outside so as to communicate with the cavity
passageway.
Description
TECHNICAL FIELD
[0001] The present invention relates to a helmet which is worn for
a ride on a motorcycle or other purposes.
BACKGROUND ART
[0002] Helmets that are worn for a ride on a motorcycle or other
purposes include a type comprising a helmet shell and an
impact-absorbing member disposed along the inner surface of the
helmet shell, in which the helmet shell has a pair of right-hand
and left-hand cheek-covering parts, and side hemming members are
attached to the lower edges of the right-hand and left-hand
cheek-covering parts.
[0003] In such a helmet of conventional type, air ejection holes
are formed in the right-hand and left-hand cheek-covering parts of
the helmet shell, so that air in the helmet is taken out of the air
ejection holes for air ventilation of the interior of the helmet
(refer to Patent literature 1, for example).
PRIOR ART REFERENCE
Patent literature
[0004] Patent literature 1: Japanese Unexamined Patent Publication
JP-A 7-197305 (1995)
SUMMARY OF THE INVENTION
Problems to be solved by the Invention
[0005] Accordingly, in the conventional case, when a force is
applied to the helmet shell, for example, the helmet shell may
become cracked from its air ejection hole-bearing part, which
results in the problem of deterioration of the strength of the
helmet shell.
[0006] The present invention has been devised in view of the
problem as mentioned supra, and accordingly its object is to
provide a helmet that can be ventilated without any decrease in the
strength of its helmet shell.
Means for Solving the Problem
[0007] The following is specific means for solving the problem
pursuant to the present invention.
[0008] According to the technical means of the present invention
for solving the technical problem, there is provided a helmet
comprising:
[0009] a helmet shell 3; and
[0010] an impact-absorbing member 4 disposed along the inner
surface of the helmet shell 3,
[0011] the helmet shell 3 having a pair of right-hand and left-hand
cheek-covering portions 9,
[0012] the right-hand, left-hand cheek-covering portion 9 being, at
its lower edge 9a, fitted with a side hemming member 22,
[0013] the right-hand, left-hand cheek-covering portion 9 having an
upwardly cut-out portion 50 formed on its lower-end side,
[0014] the lower edge 9a of the right-hand, left-hand
cheek-covering portion 9 being made in peak form so as to be
slanted upward from both sides toward a center thereof in a
front-back direction,
[0015] the side hemming member 22 having a wide portion 52 formed
so as to swell upward in peak form for obtaining a wide vertical
width in correspondence with the cut-out portion 50, [0016] the
wide portion 52 being formed with an air ejection hole 55.
[0017] Moreover, according to another technical means of the
present invention, the side hemming member 22 has a side engagement
portion 29 of U-section which engages the lower edge 9a of the
cheek-covering portion 9 and a side bend edge portion 30 protruding
from the lower end of the side engagement portion 29, and that part
of the side engagement portion 29 which corresponds to the wide
portion 52 is curved in peak form so as to be slanted upward from
both sides toward the center in the front-back direction along the
lower edge 9a of the cheek-covering portion 9, and also, that part
of the side bend edge portion 30 which corresponds to the wide
portion 52 is made as a wide bend edge part 30a which protrudes
downward, while being widened, from the side engagement portion 29,
the wide bend edge part 30a being formed with the air ejection hole
55.
[0018] Moreover, according to another technical means of the
present invention, the outer surface of the side hemming member 22
is formed with an outside-air guide surface 57 which is gradually
inclined horizontally outwardly as it extends backward from the
rear opening edge of the air ejection hole 55, or is gradually
inclined horizontally inwardly as it extends forward from the front
opening edge of the air ejection hole 55.
[0019] Moreover, according to another technical means of the
present invention, a plurality of air ejection holes 55 are spaced
apart in the front-back direction in the wide portion 52 of the
side hemming member 22, and, the outside-air guide surface 57 is
placed between the air ejection holes 55 arranged adjacent each
other in the front-back direction, and is gradually inclined
horizontally outwardly as it extends backward from the rear opening
edge of the front-located air ejection hole 55 toward the front
opening edge of the rear-located air ejection hole 55.
[0020] Moreover, according to another technical means of the
present invention, the helmet shell 3 has a chin-covering portion
10 protruding forward from the lower side of the right-hand,
left-hand cheek-covering portion 9, for covering the chin-to-mouth
region of a helmet wearer, and, an air passageway 44 for causing
exhaled air to flow backward for its movement toward the air
ejection hole 55 is formed inside the chin-covering portion 10 and
the cheek-covering portion 9.
[0021] Moreover, according to another technical means of the
present invention, the impact-absorbing member 4 situated ahead of
the mouth of a helmet wearer is formed with a mouth communication
hole 46 communicating with the front of the air passageway 44.
[0022] Moreover, according to another technical means of the
present invention, the lower-end side of the impact-absorbing
member 4 corresponding to the cheek-covering portion 9 protrudes
downward beyond the lower edge 9a of the cheek-covering portion 9
corresponding to the cut-out portion 50 and extends up to the
inside of the right and left of the wide portion 52 of the side
hemming member 22, and, the lower side of the rear of the air
passageway 44 is located on the inside of the right and left of the
wide portion 52 of the side hemming member 22 and communicates with
the air ejection hole 55 of the side hemming member 22.
[0023] Moreover, according to another technical means of the
present invention, the air passageway 44 is formed in between the
chin-covering portion 10 as well as the cheek-covering portion 9
and the impact-absorbing member 4 corresponding to them by
creating, at the outer surface of the impact-absorbing member 4
corresponding to the chin-covering portion 10 and the
cheek-covering portion 9, a horizontally-inwardly sunken
passageway-forming groove in the front-back direction.
[0024] Moreover, according to another technical means of the
present invention, the impact-absorbing member 4 corresponding to
the chin-covering portion 10 and the cheek-covering portion 9 is
formed with an inside-air communication hole 47 communicating with
the air passageway 44 from the inner surface thereof.
[0025] Moreover, according to another technical means of the
present invention, a pair of right-hand and left-hand cheek pads 36
is disposed inside the impact-absorbing member 4 corresponding to
the chin-covering portion 10 and the cheek-covering portion 9, and,
each of the cheek pads 36 has a pad communication hole 58 formed
therethrough from the inside to the outside so as to communicate
with the inside-air communication hole 47.
[0026] Moreover, according to another technical means of the
present invention, a pair of right-hand and left-hand cheek pads 36
is disposed inside the impact-absorbing member 4 corresponding to
the chin-covering portion 10 and the cheek-covering portion 9, the
right-hand and left-hand cheek pads 36 having an insertion locking
piece 41 bent upward from the outer-edge side of the lower end of
the cheek pad 36 in the horizontal direction, and the insertion
locking piece 41 is passed inside the right and left of the side
hemming member 22 so as to be inserted in between the chin-covering
portion 10 as well as the cheek-covering portion 9 and the
impact-absorbing member 4 corresponding to them, thereby holding
the cheek pads 36 within the impact-absorbing member 4, and also,
an air vent 59 is formed in that part of the insertion locking
piece 41 which corresponds to the air ejection hole 55, and a mesh
sheet 60 is additionally provided in the insertion locking piece 41
so as to cover the air vent 59.
[0027] Moreover, according to another technical means of the
present invention, the front ends of, respectively, the right-hand
and left-hand cheek pads 36 are spaced apart in the horizontal
direction at the front of the mouth of a helmet wearer, and, the
impact-absorbing member 4 situated ahead of the mouth of the helmet
wearer is formed with a mouth communication hole 46 communicating
with the front of the air passageway 44, the mouth communication
hole 46 being placed between the front ends of, respectively, the
right-hand and left-hand cheek pads 36.
[0028] Moreover, according to another technical means of the
present invention, paired right-hand and left-hand chin bands 65
are fixedly coupled to the inner-surface sides of the right-hand
and left-hand cheek-covering portions 9, respectively, so as to
extend downward through the inside of the right and left of the
side hemming member 22, and, the wide portion 52 of the side
hemming member 22 is placed in a position corresponding to the chin
band 65.
[0029] Moreover, according to another technical means of the
present invention, a pair of right-hand and left-hand cheek pads 36
is disposed inside the impact-absorbing member 4 corresponding to
the chin-covering portion 10 and the cheek-covering portion 9, and
the lower-end side of the impact-absorbing member 4 corresponding
to the cheek-covering portion 9 is made concavely above the wide
portion 52 of the side hemming member 22 and the lower part of the
cheek pad 36, and also, a cavity passageway 68 is formed between
the wide portion 52 of the side hemming member 22 and the lower
part of the cheek pad 36 under the impact-absorbing member 4, and
the lower side of the air passageway 44 communicates with the
cavity passageway 68.
[0030] Moreover, according to another technical means of the
present invention, the cheek pad 36 has, in its lower part, a pad
communication hole 58 formed therethrough from the inside to the
outside so as to communicate with the cavity passageway 68.
Effects of the Invention
[0031] According to the present invention, since the side hemming
member is formed with the air ejection holes, there is no need to
provide air ejection holes in the cheek-covering portion of the
helmet shell, wherefore it is possible to avoid that the helmet
shell becomes cracked from its air ejection hole-bearing part, and
thereby keep the strength of the helmet shell at a high level.
[0032] In addition, the air ejection holes, being provided in the
wide portion of the side hemming member expanding upward in
correspondence with the cut-out portion, can be placed in a higher
position relative to the helmet shell, wherefore, for example, the
air ejection holes can be placed in a position higher than a line
segment connecting the lower end of the front of the helmet shell
with the lower end of the rear thereof. Accordingly, air in the
helmet can be effectively sucked out from the air ejection holes by
a wind flowing laterally outside the helmet shell from front to
rear, and it is thus possible to take the air in the helmet out of
the plural air ejection holes formed in wide portion of the side
hemming member, and thereby achieve sufficient air ventilation of
the interior of the helmet.
BRIEF DESCRIPTION OF DRAWINGS
[0033] FIG. 1 is a side view of a helmet in accordance with the
first embodiment of the present invention.
[0034] FIG. 2 is a perspective view of the helmet.
[0035] FIG. 3 is a sectional view taken along the line A-A shown in
FIG. 1.
[0036] FIG. 4 is a sectional view taken along the line B-B shown in
FIG. 3.
[0037] FIG. 5 is a side view of a hemming member.
[0038] FIG. 6 is a sectional view taken along the line C-C shown in
FIG. 5.
[0039] FIG. 7 is a perspective view of a cheek pad.
[0040] FIG. 8 is another perspective view of the cheek pad.
[0041] FIG. 9 is a side view showing a motorcycle rider wearing the
helmet.
[0042] FIG. 10 is a sectional back view of the lower part of the
helmet in accordance with the second embodiment.
MODES FOR CARRYING OUT THE INVENTION
[0043] Hereinafter, embodiments of the present invention will be
described with reference to the drawings.
[0044] FIGS. 1 to 9 show the first embodiment of the present
invention. In FIGS. 1 to 4, a helmet 1 is a full-face motorcycle
helmet composed of a hemispherical helmet shell 3 and an
impact-absorbing member 4 disposed along the inner surface of the
helmet shell 3.
[0045] The helmet shell 3, which is made of a fiber-reinforced
resin, a hard resin, a metal, or the like, includes a head
top-covering portion 7, a head back-covering portion 8, a pair of
right-hand and left-hand cheek-covering portions 9, and a
chin-covering portion 10. The chin-covering portion 10 protrudes
forward from the lower parts of the right-hand and left-hand
cheek-covering portions 9, for covering the chin-to-mouth region of
the face of a helmet wearer.
[0046] The lower end of the helmet shell 3 is formed with a wearing
opening 13 for wearing the helmet 1 in a manner as shown in FIG. 2.
The opening edge of the wearing opening 13 is composed of a lower
edge 8a of the head back-covering portion 8, lower edges 9a of the
right-hand and left-hand cheek-covering portions 9, and a lower
edge 10a of the chin-covering portion 10.
[0047] In a region between the head top-covering portion 7 and the
chin-covering portion 10, a front opening window 14 is formed
between the front ends of, respectively, the right-hand and
left-hand cheek-covering portions 9. The front opening window 14 is
covered, for free closing and opening, with a light-transmittable
shield plate 15.
[0048] The impact-absorbing member 4, which is made of a foam resin
such as foam polystyrene, or styrofoam, includes a non-illustrated
head top-covering body corresponding to the head top-covering
portion 7 of the helmet shell 3, a non-illustrated head
back-covering body corresponding to the head back-covering portion
8, a pair of right-hand and left-hand cheek-covering bodies 18
corresponding to the right-hand and left-hand cheek-covering
portions 9, and a chin-covering body 19 corresponding to the
chin-covering portion 10.
[0049] It is noted that the head top-covering body, the head
back-covering body, the right-hand and left-hand cheek-covering
bodies 18, and the chin-covering body 19 of the impact-absorbing
member 4 may be formed in a one-piece design or formed partially
integral with one another, or may be formed independently of one
another.
[0050] Moreover, for example, the chin-covering body 19 may be
divided into three pieces, namely a pair of right-hand and
left-hand chin-covering body side parts and a chin-covering body
front part.
[0051] Paired right-hand and left-hand side hemming members 22 are
attached to the lower edges 9a of the right-hand and left-hand
cheek-covering portions 9; a front hemming member 23 is attached to
the lower edge 10a of the chin-covering portion 10; and a back
hemming member 24 is attached to the lower edge 8a of the head
back-covering portion 8. The right-hand and left-hand side hemming
members 22, the front hemming member 23, and the back hemming
member 24 are made of an elastic rubber material or a soft
synthetic resin.
[0052] As also shown in FIG. 5, the front hemming member 23
includes a front engagement portion 26 of U-section which engages
the lower edge 10a of the chin-covering portion 10, and a front
bend edge portion 27 bent backward from the lower end of the front
engagement portion 26. The right-hand and left-hand side hemming
members 22 include a side engagement portion 29 of U-section which
engages the lower edge 9a of the cheek-covering portion 9, and a
side bend edge portion 30 protruding from the lower end of the side
engagement portion 29.
[0053] The front hemming member 23 and the right-hand and left-hand
side hemming members 22 are formed integral with each other, and
the right-hand and left-hand rear ends of the front engagement
portion 26 are so formed as to be continuous with the side
engagement portions 29 of the right-hand and left-hand side hemming
members 22, respectively, in the front-back direction. The
right-hand and left-hand rear ends of the front bend edge portion
27 are so formed as to be continuous with the side bend edge
portions 30 of the right-hand and left-hand side hemming members
22, respectively, in the front-back direction.
[0054] The back hemming member 24, which includes a back engagement
portion 32 of U-section which engages the lower edge of the head
back-covering portion 8, and a back bend edge portion 33 bent
forward from the lower end of the back engagement portion 32, is
formed independently of the right-hand and left-hand side hemming
members 22.
[0055] In FIGS. 2 to 4, a pair of right-hand and left-hand cheek
pads 36 is disposed inside the impact-absorbing member 4
corresponding to the chin-covering portion 10 and the
cheek-covering portion 9 (the chin-covering body 19 and the
cheek-covering body 18). The right-hand and left-hand cheek pads 36
include a platy shape-retaining body 37 and a cushion body 38
attached to the inner surface of the shape-retaining body 37. The
interior of the cushion body 38 is covered with a cover body 39
such as a cloth, and the cover body 39 is, at its outer periphery
or other area, sewn to the outer periphery or other area of the
shape-retaining body 37, whereby the cover body 39 and the
shape-retaining body 37 surround the cushion body 38.
[0056] As shown in FIG. 7 and also in FIG. 8, the cheek pad 36 is
formed with a band insertion hole 40 into which is inserted a chin
band 65 which will hereafter be described. The front ends of,
respectively, the right-hand and left-hand cheek pads 36 are spaced
apart in a right-left, or horizontal direction at the front of the
mouth of the helmet wearer.
[0057] Although not shown in the drawings, the impact-absorbing
member 4 corresponding to the cheek-covering portion 9 (the
cheek-covering body 18) is also formed with a band insertion hole
in correspondence with the band insertion hole 40.
[0058] The right-hand and left-hand cheek pads 36 are each provided
with an insertion locking piece 41 bent upward from the outer-edge
side of the lower end of the cheek pad 36 in the horizontal
direction. The insertion locking piece 41 is passed inside the
right and left of the side hemming member 22 so as to be inserted
in between the chin-covering portion 10 as well as the
cheek-covering portion 9 and the impact-absorbing member 4
corresponding to them, thereby holding the right-hand and left-hand
cheek pads 36 within the impact-absorbing member 4.
[0059] In FIGS. 1, 3, and 4, a pair of right-hand and left-hand air
passageways 44 is formed inside the chin-covering portion 10 and
the cheek-covering portions 9. The right-hand and left-hand air
passageways 44, which are intended to cause exhaled air to flow
backward from the front of the chin-covering portion 10 toward the
rear of the cheek-covering portions 9, are formed in between the
chin-covering portion 10 as well as the cheek-covering portion 9
and the impact-absorbing member 4 corresponding to them (the
chin-covering body 19 and the cheek-covering body 18) by creating,
at the outer surface of the impact-absorbing member 4 corresponding
to the chin-covering portion 10 and the cheek-covering portion 9
(the chin-covering body 19 and the cheek-covering body 18),
horizontally-inwardly sunken passageway-forming grooves in the
front-back direction. The air passageways 44 are each formed inside
the chin-covering portion 10 and the cheek-covering portion 9 so as
to extend from the front of the chin-covering portion 10 to the
rear of the cheek-covering portions 9.
[0060] The impact-absorbing member 4 situated ahead of the mouth of
the helmet wearer (the front of the chin-covering body 19) is
formed with a pair of right-hand and left-hand mouth communication
holes 46. The mouth communication holes 46, each of which is a hole
formed all the way through from the inside to the outside of the
front of the chin-covering body 19, communicate with the fronts of
the right-hand and left-hand air passageways 44, respectively. The
right-hand and left-hand mouth communication holes 46 are arranged
on the front of the region between the front ends of the right-hand
and left-hand cheek pads 36, so that exhaled air can be delivered
to the front of the air passageway 44 through the mouth
communication hole 46.
[0061] The impact-absorbing member 4 corresponding to the
chin-covering portion 10 and the cheek-covering portion 9 (the
chin-covering body 19 and the cheek-covering body 18) is formed
with a plurality of inside-air communication holes 47, each of
which communicates with some midpoint of the air passageway 44 in
the front-back direction from the inner surface thereof, that are
spaced apart in the front-back direction (three holes are assigned
to each of the right-hand and left-hand air passageways 44 in the
illustrated example).
[0062] In FIGS. 1 and 2, the lower-end sides of the right-hand and
left-hand cheek-covering portions 9 are formed with an upwardly
cut-out portion 50, and the lower edges 9a of the right-hand and
left-hand cheek-covering portions 9 are each made in peak form so
as to be slanted upward from both sides toward the center in the
front-back direction.
[0063] As also shown in FIG. 5, the side hemming member 22 has a
wide portion 52, which corresponds to the cut-out portion 50,
formed so as to swell upward in peak form thereby providing a wide
vertical width.
[0064] That part of the side engagement portion 29 which
corresponds to the wide portion 52 is curved in peak form so as to
be slanted upward from both sides toward the center in the
front-back direction along the lower edge 9a of the cheek-covering
portion 9 corresponding to the cut-out portion 50.
[0065] That part of the side bend edge portion 30 which corresponds
to the wide portion 52 is made as a wide bend edge part 30a which
protrudes downward, while being widened, from the side engagement
portion 29, and, this wide bend edge part 30a protrudes downward,
while being slanted horizontally inwardly, from the side engagement
portion 29.
[0066] The front side of the side bend edge portion 30 beyond the
wide portion 52 is greatly bent horizontally inwardly by degrees
from the side engagement portion 29 as it extends forward, and is
continuous with the rear of the front bend edge portion 27 of the
front hemming member 23 in the front-back direction. The back side
of the side bend edge portion 30 beyond the wide portion 52 is also
greatly bent horizontally inwardly by degrees from the side
engagement portion 29 as it extends backward.
[0067] In FIGS. 1 to 6, the wide portion 52 of the side hemming
member 22 is formed with an air ejection hole 55. In the wide bend
edge part 30a of the side bend edge portion 30, a plurality of air
ejection holes 55 are spaced apart in the front-back direction
(four holes are assigned to each of the wide portions 52 of the
right-hand and left-hand side hemming members 22 in the illustrated
example).
[0068] The plural air ejection holes 55 are formed in the wide
portion 52 expanding upward in correspondence with the cut-out
portion 50, and are located in a position higher than a line
segment connecting the lower end of the front of the helmet shell 3
with the lower end of the rear thereof.
[0069] The outer surface of the wide bend edge part 30a of the side
hemming member 22 is formed with a plurality of outside-air guide
surfaces 57. The outside-air guide surface 57, which is situated on
the rear side or front side of the air ejection hole 55, is
gradually inclined horizontally outwardly as it extends backward
from the rear opening edge of the air ejection hole 55, or is
gradually inclined horizontally inwardly as it extends forward from
the front opening edge of the air ejection hole 55.
[0070] In this embodiment, each of the outside-air guide surfaces
57 is located between the air ejection holes 55 arranged adjacent
each other in the front-back direction in the wide bend edge part
30a, and is gradually inclined horizontally outwardly as it extends
backward from the rear opening edge of the front-located air
ejection hole 55 toward the front opening edge of the rear-located
air ejection hole 55.
[0071] As shown in FIG. 3, the lower-end side of the
impact-absorbing member 4 corresponding to the cheek-covering
portion 9 (the cheek-covering body 18) is not formed with a
concavity corresponding to the cut-out portion 50, and, the
lower-end side of the impact-absorbing member 4 corresponding to
the cheek-covering portion 9 (the cheek-covering body 18) protrudes
downward beyond the lower edge 9a of the cheek-covering portion 9
corresponding to the cut-out portion 50, and extends up to the
inside of the right and left of the wide portion 52 of the side
hemming member 22. The lower side of the rear of the
above-described air passageway 44 is located on the inside of the
right and left of the wide portion 52 of the side hemming member
22, and communicates with the plural air ejection holes 55 of the
side hemming member 22.
[0072] As shown in FIGS. 3 and 4, the above-described cheek pad 36
has a plurality of pad communication holes 58 formed therethrough
from the inside to the outside, which communicate with their
respective inside-air communication holes 47. The pad communication
holes 58 are each formed in the horizontal direction by drilling
through the region between the shape-retaining body 37 and the
cushion body 38, with the cover body 39 left intact.
[0073] In FIGS. 3, 4, 7, and 8, an air vent 59 is formed in that
part of the above-described insertion locking piece 41 which
corresponds to the air ejection hole 55, and, a mesh sheet 60 is
additionally provided on the outer surface of the insertion locking
piece 41 so as to cover the air vent 59.
[0074] It is noted that the air vent 59 may either be disposed in
alignment with the air ejection hole 55 in the front-back direction
and the vertical direction as well, or be slightly displaced from
the air ejection hole 55 in the front-back direction or the
vertical direction.
[0075] The lower end of the cover body 39 is formed with a
cover-body extended portion 61 elongated horizontally outwardly
relative to the shape-retaining body 37, and, the protruding end of
the cover-body extended portion 61 is sewn to the outer surface of
the lower part of the insertion locking piece 41. Moreover, a
coupling sheet 63 made of a cloth or the like is disposed between
the lower end of the insertion locking piece 41 and the lower end
of the shape-retaining body 37, and, one end of the coupling sheet
63 in its width direction is sewn to the outer surface of the lower
end of the shape-retaining body 37. The widthwise other end of the
coupling sheet 63 and the above-described cover-body extended
portion 61 overlap each other, and the widthwise other end of the
coupling sheet 63 is, together with the protruding end of the
cover-body extended portion 61 and the lower part of the mesh sheet
60, sewn to the outer surface of the lower part of the insertion
locking piece 41. The coupling sheet 63 and the cover-body extended
portion 61 are coupled to each other in a manner such that the
insertion locking piece 41 can be freely folded toward the lower
end of the cheek pad 36.
[0076] As shown in FIGS. 1 and 2, the paired right-hand and
left-hand chin bands 65 are fixedly coupled to the inner-surface
sides of the right-hand and left-hand cheek-covering portions 9,
respectively. The chin band 65 is inserted into the band insertion
hole of the impact-absorbing member 4 corresponding to the
cheek-covering portion 9 (the chin-covering body 19) and the band
insertion hole 40 of the cheek pad 36, and extends downward through
the inside of the right and left of the side hemming member 22 and
the cheek pad 36. The wide portion 52 of the side hemming member 22
is placed in a position corresponding to the chin band 65.
[0077] According to the first embodiment thus far described, when
the helmet wearer drives a motorcycle, as shown in FIG. 9, a wind
flows laterally outside the helmet shell 3 from front to rear. As
shown in FIG. 6, where this wind is guided to turn laterally
outwardly by the plural outside-air guide surfaces 57, a negative
pressure is developed laterally outside the plural air ejection
holes 55, whereby the air in the helmet 1 can be drawn out of the
plural air ejection holes 55 under suction. Thus, since the air in
the helmet shell 3 can be effectively sucked out by the plural air
ejection holes 55 arranged in the front-back direction, it is
possible to take the air in the helmet 1 out of the plural air
ejection holes 55, and thereby achieve sufficient air ventilation
of the interior of the helmet 1.
[0078] Accordingly, there is no need to provide air ejection holes
in the cheek-covering portion 9 of the helmet shell 3, wherefore it
is possible to avoid that the helmet shell 3 becomes cracked from
its air ejection hole-bearing part, and thereby keep the strength
of the helmet shell 3 at a high level.
[0079] In addition, the air ejection holes 55 are provided in the
wide portion 52 expanding upward in correspondence with the cut-out
portion 50, and can therefore be placed in a higher position
relative to the helmet shell 3. Thus, for example, the air ejection
holes 55 can be placed in a position higher than a line segment
connecting the lower end of the front of the helmet shell 3 with
the lower end of the rear thereof, wherefore the air in the helmet
1 can be effectively and smoothly sucked out from the air ejection
holes 55 by the wind flowing laterally outside the helmet shell 3
from front to rear.
[0080] Moreover, as shown in FIG. 4, the exhaled air of the helmet
wearer is delivered from the region between the front ends of the
right-hand and left-hand cheek pads 36 to the front of the air
passageway 44 through the mouth communication hole 46, is
whereafter delivered to the rear of the air passageway 44, and is
then discharged laterally outwardly of the helmet from the plural
air ejection holes 55.
[0081] At this time, since the lower side of the rear of the air
passageway 44 is located on the inside of the right and left of the
wide portion 52 of the side hemming member 22 and communicates with
the air ejection holes 55 of the side hemming member 22, it follows
that the exhaled air which entered the air passageway 44 is also
drawn toward the air ejection holes 55 by the force of suction
under which the air in the helmet 1 is sucked out from the air
ejection holes 55, and consequently the exhaled air flows backward
smoothly through the air passageway 44 so as to be delivered from
the lower side of the rear of the air passageway 44 to the air
ejection holes 55, and is then smoothly discharged out of the air
ejection holes 55.
[0082] Moreover, the impact-absorbing member 4 corresponding to the
chin-covering portion 10 and the cheek-covering portion 9 is formed
with the inside-air communication holes 47 communicating with the
air passageway 44 from the inner surface thereof, and also the
cheek pad 36 is formed with the pad communication holes 58
communicating with the inside-air communication holes 47. This
makes it possible to deliver the inside air within the
impact-absorbing member 4 and the cheek pad 36 to the air
passageway 44 through the pad communication holes 58 and the
inside-air communication holes 47, so that not only the exhaled
air, but also the inside air within the impact-absorbing member 4
and the cheek pad 36 can be smoothly delivered out of the air
ejection holes 55 through the air passageway 44, whereby the
interior of the helmet 1 can be ventilated more reliably.
[0083] Moreover, the above-described air passageway 44 is formed in
between the chin-covering portion 10 as well as the cheek-covering
portion 9 and the impact-absorbing member 4 corresponding to them
by creating, at the outer surface of the impact-absorbing member 4
corresponding to the chin-covering portion 10 and the
cheek-covering portion 9, a horizontally-inwardly sunken
passageway-forming groove in the front-back direction. With the
provision of the passageway-forming groove in the impact-absorbing
member 4, the air passageway 44 can be readily formed inside the
chin-covering portion 10 and the cheek-covering portion 9.
[0084] Moreover, the right-hand and left-hand cheek pads 36 have
the insertion locking piece 41 bent upward from the outer-edge side
of the lower end of the cheek pad 36 in the horizontal direction,
and, the insertion locking piece 41 is passed inside the right and
left of the side hemming member 22 so as to be inserted in between
the chin-covering portion 10 as well as the cheek-covering portion
9 and the impact-absorbing member 4 corresponding to them, thereby
holding the cheek pads 36 within the impact-absorbing member 4. By
virtue of the insertion locking piece 41, the paired right-hand and
left-hand cheek pads 36 can be held easily and reliably within the
impact-absorbing member 4 corresponding to the chin-covering
portion 10 and the cheek-covering portion 9.
[0085] In addition, the air vent 59 is formed in that part of the
above-described insertion locking piece 41 which corresponds to the
air ejection hole 55, and the mesh sheet 60 is additionally
provided in the insertion locking piece 41 so as to cover the air
vent 59. This makes it possible to avoid that the air ejection hole
55 is blocked by the insertion locking piece 41 with a consequent
inability to take the air in the helmet 1 out of the air ejection
hole 55.
[0086] Moreover, the paired right-hand and left-hand chin bands 65
are fixedly coupled to the inner-surface sides of the right-hand
and left-hand cheek-covering portions 9, respectively, so as to
extend downward through the inside of the right and left of the
side hemming member 22, and, the wide portion 52 of the side
hemming member 22 is placed in a position corresponding to the chin
band 65. Thus, when the helmet 1 is put on through the wearing
opening 13, the right-hand and left-hand chin bands 65 are pulled
horizontally (rightwardly and leftwardly, respectively) outwardly,
thereby causing the wide portion 52 of the side hemming member 22
to spread, together with the lower parts of the cheek pad 36 and
the impact-absorbing member 4, horizontally outwardly in skirt-like
form. This helps facilitate the insertion of wearer's head into the
helmet through the wearing opening 13, wherefore the wearer is able
to put on the helmet 1 with ease.
[0087] In FIG. 10, there is shown the second embodiment in which
the impact-absorbing member 4 corresponding to the cheek-covering
portion 9 (the cheek-covering body 18) has its lower edge made
shorter in the vertical direction so as to be substantially flush
with the lower edge 9a of the cheek-covering portion 9
corresponding to the cut-out portion 50, and made concavely above
the wide portion 52 of the side hemming member 22 and the lower
part of the cheek pad 36, and also, in a region between the wide
portion 52 of the side hemming member 22 and the lower part of the
cheek pad 36 under the impact-absorbing member 4 corresponding to
the cheek-covering portion 9, there is formed a cavity passageway
68 surrounded with the side hemming member 22, the cheek pad 36,
and the coupling sheet 63. Moreover, the lower side of the air
passageway 44 communicates with the cavity passageway 68, and, the
cheek pad 36 has, in its lower part, a pad communication hole 58
formed therethrough from the inside to the outside so as to
communicate with the cavity passageway 68. A single pad
communication hole 58 is formed, or a plurality of pad
communication holes 58 are spaced apart in the front-back
direction, in each of the right-hand and left-hand cheek pads 36.
Otherwise, the second embodiment is structurally identical with the
first embodiment described earlier. Note that, in the case of this
embodiment, the inside-air communication hole 47 of the
impact-absorbing member 4 provided in the first embodiment may
either be omitted or be provided.
[0088] According to the second embodiment thus far described, as is
the case with the first embodiment, the wind flowing laterally
outside the helmet shell 3 from front to rear is guided to turn
laterally outwardly by the plural outside-air guide surfaces 57,
wherefore the air in the helmet shell 3 can be effectively sucked
out by the plural air ejection holes 55 arranged in the front-back
direction. This makes it possible to take the air in the helmet 1
out of the plural air ejection holes 55, and thereby achieve
sufficient air ventilation of the interior of the helmet 1.
[0089] The exhaled air of the helmet wearer is delivered from the
region between the front ends of the right-hand and left-hand cheek
pads 36 to the front of the air passageway 44 through the mouth
communication hole 46, is whereafter delivered to the rear of the
air passageway 44 so as to enter the cavity passageway 68, and is
then discharged laterally outwardly of the helmet 1 from the cavity
passageway 68 via the plural air ejection holes 55.
[0090] Moreover, the inside air within the cheek pad 36 is
delivered to the cavity passageway 68 through the pad communication
hole 58, so that not only the exhaled air, but also the inside air
within the cheek pad 36 can be smoothly delivered out of the air
ejection holes 55 through the cavity passageway 68.
[0091] Although, in the above-described embodiments, the helmet 1
is the full-face helmet having the chin-covering portion 10, the
helmet 1 is not so limited, but may be an open-face helmet having
no chin-covering portion 10.
[0092] Moreover, although, in the above-described embodiments, four
air ejection holes 55 are spaced apart in the front-back direction
in the wide portion 52 of the side hemming member 22, the number of
the air ejection holes 55 is not limited to four, but may be one to
three, or five or more.
[0093] Moreover, in the above-described embodiments, the air
passageway 44 for causing exhaled air to flow backward for its
movement toward the air ejection holes 55 is formed in between the
chin-covering portion 10 as well as the cheek-covering portion 9
and the impact-absorbing member 4 corresponding to them by
creating, at the outer surface of the impact-absorbing member 4
corresponding to the chin-covering portion 10 and the
cheek-covering portion 9, the passageway-forming groove in the
front-back direction. However, instead of this, it is also possible
to form an air passageway 44 for causing exhaled air to flow
backward for its movement toward the air ejection holes 55 within
the impact-absorbing member 4 located inside the chin-covering
portion 10 and the cheek-covering portion 9 by creating, in the
impact-absorbing member 4 corresponding to the chin-covering
portion 10 and the cheek-covering portion 9, a passageway-forming
groove in the front-back direction. In another alternative, an air
passageway 44 for causing exhaled air to flow backward for its
movement toward the air ejection holes 55 can be formed in between
the cheek pad 36 and the impact-absorbing member 4 located inside
the chin-covering portion 10 and the cheek-covering portion 9 by
creating, at the outer surface of the impact-absorbing member 4
corresponding to the chin-covering portion 10 and the
cheek-covering portion 9, a horizontally-inwardly sunken
passageway-forming groove in the front-back direction.
[0094] Moreover, although, in the above-described embodiments, the
impact-absorbing member 4 situated ahead of the mouth of the helmet
wearer is formed with the paired right-hand and left-hand mouth
communication holes 46, instead of this, it is also possible to
form a single mouth communication hole 46 in the impact-absorbing
member 4 situated ahead of the mouth of the helmet wearer so as to
communicate with the fronts of the right-hand and left-hand air
passageways 44.
EXPLANATION OF REFERENCE SYMBOLS
[0095] 1 helmet [0096] 3 helmet shell [0097] 4 impact-absorbing
member [0098] 7 head top-covering portion [0099] 8 head
back-covering portion [0100] 8a lower edge [0101] 9 cheek-covering
portion [0102] 9a lower edge [0103] 10 chin-covering portion [0104]
10a lower edge [0105] 13 wearing opening [0106] 14 front opening
window [0107] 15 shield plate [0108] 22 side hemming member [0109]
23 front hemming member [0110] 24 back hemming member [0111] 26
front engagement portion [0112] 27 front bend edge portion [0113]
29 side engagement portion [0114] 30 side bend edge portion [0115]
30a wide bend edge part [0116] 32 back engagement portion [0117] 33
back bend edge portion [0118] 36 cheek pad [0119] 41 insertion
locking piece [0120] 44 air passageway [0121] 46 mouth
communication hole [0122] 47 inside-air communication hole [0123]
50 cut-out portion [0124] 52 wide portion [0125] 55 air ejection
hole [0126] 57 outside-air guide surface [0127] 58 pad
communication hole [0128] 59 air vent [0129] 60 mesh sheet [0130]
65 chin band [0131] 68 cavity passageway
* * * * *