WO2022168366A1 - ヘルメットおよびヘルメットの製造方法 - Google Patents

ヘルメットおよびヘルメットの製造方法 Download PDF

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Publication number
WO2022168366A1
WO2022168366A1 PCT/JP2021/035640 JP2021035640W WO2022168366A1 WO 2022168366 A1 WO2022168366 A1 WO 2022168366A1 JP 2021035640 W JP2021035640 W JP 2021035640W WO 2022168366 A1 WO2022168366 A1 WO 2022168366A1
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WO
WIPO (PCT)
Prior art keywords
helmet
density
cap body
main body
liner
Prior art date
Application number
PCT/JP2021/035640
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
晃 澤邊
芳晃 西城
正美 栗原
Original Assignee
株式会社Shoei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社Shoei filed Critical 株式会社Shoei
Priority to CN202180090984.5A priority Critical patent/CN116709944A/zh
Priority to JP2022579332A priority patent/JPWO2022168366A1/ja
Priority to EP21924754.1A priority patent/EP4289304A1/en
Priority to US18/275,295 priority patent/US20240090612A1/en
Publication of WO2022168366A1 publication Critical patent/WO2022168366A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/14—Suspension devices
    • A42B3/147—Anchoring means
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A42B3/127—Cushioning devices with a padded structure, e.g. foam with removable or adjustable pads

Definitions

  • the present disclosure relates to helmets and helmet manufacturing methods.
  • Patent Literature 1 describes a foamed resin liner as an example of a shock absorbing material.
  • the liner has a hemispherical shape that follows the inner surface of the cap and is configured to cover the entire head of the wearer. The liner protects the wearer's head by absorbing the impact applied to the helmet.
  • the lateral dimension of the inner surface of the cap gradually expands from the position that covers the top of the wearer's head to the position that covers the temporal region, and from the position that covers the temporal region to the insertion opening for inserting the head. shrink towards Therefore, when attaching the liner to the inside of the cap body, it is necessary to deform the liner so as to contract the liner in the lateral direction to such an extent that the portion of the liner having the maximum lateral dimension can be inserted into the insertion opening. As a result, it is difficult to match the shape of the inner surface of the cap with the shape of the outer surface of the liner. Gaps may form.
  • a gap can be formed between the inner surface of the cap body and the outer surface of the liner by cutting the parts that interfere when the liner is assembled into the cap body or by reducing the width. be.
  • Gaps may also form.
  • the adhesion between the cap body and the liner may decrease, which may reduce the impact absorption of the liner. Therefore, conventionally, even if a gap is formed between the cap body and the liner, it has been necessary to take measures such as thickening the cap body and the liner in order to ensure sufficient shock absorption. However, when the cap body and liner are thickened, the load on the wearer increases due to an increase in the weight of the helmet and an increase in air resistance due to the enlargement of the cap body.
  • the direction in which the liner is deformed is not limited to the left-right direction as long as it is the direction in which the liner is deformed so that the liner can be inserted through the insertion opening of the cap body. That is, the gap between the inner surface of the cap body and the outer surface of the liner as described above can occur in directions other than the lateral direction.
  • a helmet includes a cap body and a shock absorbing material arranged inside the cap body, wherein the shock absorbing material is a body portion having a hemispherical shape.
  • the main body portion having an insertion recess on the outer surface of the main body portion defining an insertion space opening toward the insertion opening of the cap body between the outer surface of the main body portion and the inner surface of the cap body; , and an insertion member press-fitted into the insertion space.
  • the insertion member is press-fitted so as to fill the insertion space defined by the outer surface of the main body and the inner surface of the cap, it is possible to improve the adhesion between the cap and the shock absorbing material. can. Therefore, the shock absorbing property of the shock absorbing material can be improved.
  • the body portion has the insertion recess at a position that covers the temporal region of the wearer's head.
  • the lateral dimension of the inner surface of the cap body is maximized at a position covering the temporal region of the wearer.
  • the lateral dimension of the outer surface of the shock absorbing material should also be maximized at the position covering the wearer's temporal region.
  • the shock absorbing material is attached to the inside of the cap body, it is forced to deform the shock absorbing material so as to shorten the maximum dimension as described above. Adhesion between the body and the shock absorbing material tends to deteriorate.
  • the insertion member is press-fitted into the insertion space defined at the position corresponding to the temporal region of the wearer's head, thereby improving the adhesion between the shock absorbing material and the cap. can be effectively enhanced. Therefore, the shock absorbing property of the shock absorbing material can be improved.
  • the main body portion and the insertion member are the same foamed resin molded body, and that the portion of the main body portion defining the insertion space and the insertion member have the same foaming ratio.
  • the portion of the main body that defines the insertion space and the insertion member have the same foaming ratio, so that the impact applied to the helmet can be uniformly dispersed and absorbed by the entire shock absorbing material. . Therefore, the shock absorbing property of the shock absorbing material can be further improved.
  • the insertion member preferably has a thickness of 3 mm or more and 30 mm or less. According to the above configuration, since the insertion member has a thickness of 3 mm or more, the mechanical strength of the insertion member can be increased. Thereby, when the insertion member is press-fitted into the insertion space, it is possible to prevent the insertion member from being damaged. Moreover, since the insertion member has a thickness of 30 mm or less, the insertion member can be easily press-fitted into the insertion space.
  • the insertion member is preferably removable from the insertion space. According to the above configuration, since the insertion member is configured to be removable from the insertion space, when removing the shock absorbing material attached to the cap body, the insertion member press-fitted into the insertion space is first removed, and then the insertion member is removed. By removing the main body, the main body can be easily taken out from the insertion port.
  • the main body includes a first member positioned corresponding to the top of the head, and a second member having an annular shape positioned along the entire circumference of the head on the lower side of the first member. , a pair of third members positioned corresponding to the left and right temporal regions under the second member, and a pair of third members positioned corresponding to the left and right cheeks under the third member and a fifth member connecting the ends of the fourth member and positioned corresponding to the mouth and the jaw, wherein each of the third members is connected to the inner surface of the cap body.
  • each of the nine parts can be made of a foam material having a density suitable for its location.
  • the density of the first member is the lowest among all the nine parts, followed by the density of the second member.
  • the first member can also absorb impact directly applied to the second member. Also, the first member can absorb impact applied to any one or more of the third member, the insertion member, the fourth member, and the fifth member via the second member.
  • the density of the second member is preferably lower than the density of the third member and lower than or equal to the density of the insertion member.
  • the third member and the insertion member are harder than the second member, so that the temple portion can be protected from impact. The impact applied to the third member can be absorbed through the second member and the first member.
  • the density of the third member is preferably the same as the density of the insertion member or higher than the density of the insertion member. According to the above configuration, impact applied to the helmet can be dispersed and absorbed by the third member and the insert member. Also, the insertion member can be press-fitted into the insertion recess.
  • the density of the third member is the same as or lower than the density of the fourth member, and the density of the insertion member is lower than the density of the fourth member.
  • the fourth member that protects the cheeks is harder than the third member and the insertion member, and can protect the cheeks from impact. Furthermore, the impact applied to the fourth member can be dispersed and absorbed by the third member, the insert member, the second member, and the first member.
  • the density of the fifth member is the same as or higher than the density of the fourth member, and the density of the fifth member is the highest.
  • the fifth member is the hardest among the liners and can protect the mouth and jaw. The impact applied to the fifth member can be dispersed and absorbed through the fourth member, the third member, the insertion member, the second member, and the first member.
  • the second member has a vertical width between the first member and the third member that is narrower than the vertical width of the other region. According to the above configuration, in the second member, since the upper side of the recess for attaching the third member is narrow, the impact from the third member and the insertion member can be easily transmitted to the region where the through portion of the first member is provided. Become.
  • the vertical width of the portion corresponding to the back of the head is the vertical width between the first member and the third member, and the vertical width of the portion corresponding to the forehead. is preferably wider than
  • At least one of the first member, the second member, the third member, the fourth member, the fifth member body, and the insertion member may have a non-through hole.
  • the member forming the main body can effectively absorb the impact at the non-through hole portion.
  • the non-through hole is selected from a group of parts consisting of the first member, the second member, the third member, the fourth member, the fifth member, and the insertion member.
  • a penetrating portion provided in one member, the penetrating portion having a first end facing the outer surface of the one member and a second end facing the first abutting surface of the one member,
  • the abutment surface includes a closing portion that closes the second end of the through portion. According to the above configuration, the impact from the other member can be effectively absorbed by the one member that abuts the other member.
  • the penetrating portion is provided in the first member, and the closing portion is provided in the second member.
  • a method for manufacturing a helmet according to an aspect of the present disclosure is a method for manufacturing a helmet including a cap body and a shock absorbing material arranged inside the cap body, wherein the shock absorbing material is provided inside the cap body.
  • the impact absorbing material has a main body portion having a hemispherical shape, and the main body portion inserts the cap body between the outer surface of the main body portion and the inner surface of the cap body.
  • An insertion recess defining an insertion space that opens toward the mouth is provided on the outer surface of the main body, and in the step, the insertion member is press-fitted into the insertion recess after the main body is attached to the inside of the cap body. be done.
  • the shock absorbing property of the shock absorbing material can be improved.
  • FIG. 2 is an exploded perspective view of the helmet of FIG. 1;
  • FIG. FIG. 2 is a perspective view of a first member and a second member that are constituent elements of a main body portion of the liner of the helmet of FIG. 1;
  • 2 is a perspective view of a second member that is a component of the body portion of the liner of the helmet of FIG. 1;
  • FIG. FIG. 3 is a perspective view of a pair of third members that are components of the main body portion of the liner of the helmet of FIG. 1;
  • 2 is a perspective view of a pair of insert members that are components of the liner of the helmet of FIG. 1;
  • FIG. FIG. 2 is a side view of the body portion of the helmet of FIG.
  • FIG. 8 is a cross-sectional view of the helmet showing the cross-sectional structure taken along line 8-8 of FIG. 7;
  • FIG. 2 is a cross-sectional view of the helmet showing the cross-sectional structure taken along line 9-9 of FIG. 1;
  • It is a perspective view of a helmet in a 2nd embodiment.
  • 11 is an exploded perspective view of a liner in the helmet of FIG. 10;
  • FIG. 11 is a perspective view of the first member in the helmet of FIG. 10 as seen from the lower surface side;
  • FIG. FIG. 11 is a perspective view of the helmet of FIG. 10 in which the first member, the second member, the third member, and the insertion member are combined;
  • FIG. 11 is a perspective view showing the attachment relationship between the third member, the insertion member, and the fourth member in the helmet of FIG. 10;
  • FIG. 11 is a perspective view showing a mounting relationship between a fourth member and a fifth member in the helmet of FIG. 10;
  • FIG. 11 is a diagram for explaining the density of each member in the helmet of FIG. 10;
  • the helmet 1 of the first embodiment is a full-face helmet.
  • the helmet 1 includes a cap body 10 and a liner 20 that is an example of a shock absorbing material.
  • the cap body 10 constitutes the outer shell of the helmet 1.
  • the cap body 10 is a resin member having a hemispherical shape.
  • Materials constituting the cap body 10 are selected from, for example, acrylonitrile-butadiene-styrene copolymer (ABS), thermoplastic resins such as polycarbonate (PC), and fiber-reinforced plastics impregnated with thermosetting resin. be done.
  • the cap body 10 has an opening 10a that opens forward.
  • the opening 10a secures the field of view of the wearer.
  • a shield 11, which is a light-transmissive plate member, may be provided in the opening 10a.
  • the shield 11 prevents foreign matter, rain, wind, etc. flying from the front from entering the helmet 1, thereby improving the visibility of the wearer.
  • the cap body 10 has an insertion opening 10b that opens downward.
  • the insertion port 10b is an opening for inserting the wearer's head.
  • the lateral dimension of the inner surface 10c (see FIG. 2) of the cap body 10 gradually increases downward from the position covering the crown of the wearer's head.
  • the lateral dimension of the inner surface 10c of the cap body 10 is maximized at the position covering the temporal region, and decreases from the position covering the temporal region toward the insertion opening 10b.
  • the liner 20 is accommodated inside the cap body 10.
  • the liner 20 has a hemispherical shape that follows the inner surface 10c of the cap body 10 as a whole.
  • the liner 20 covers the wearer's top, front, back, and sides of the head, and can protect the wearer's head by absorbing impact applied to the helmet 1 .
  • the cap body 10 may accommodate a shock absorbing material for protecting the wearer's cheeks at a position corresponding to the wearer's cheeks.
  • the liner 20 includes a body portion 21 and a pair of left and right insertion members 60.
  • the body portion 21 includes a first member 30 , a second member 40 , and a pair of left and right third members 50 .
  • the body portion 21 includes a pair of fourth members 70 located below the third member 50 and corresponding to the left and right cheek portions, and an end portion of the fourth member 70. and a fifth member 80 connecting the parts to each other and positioned corresponding to the mouth (see FIG. 1).
  • the first member 30 , the second member 40 , the pair of left and right third members 50 , and the pair of left and right insertion members 60 are, for example, molded bodies made of foamed resin such as polystyrene foam.
  • the first member 30 is a member arranged at the top of the body portion 21 .
  • the first member 30 protects the top of the wearer's head.
  • the second member 40 is a member arranged below the first member 30 .
  • the second member 40 is an attachment reference member for attaching the first member 30 and the third member 50 .
  • the second member 40 protects the wearer's frontal, occipital and temporal regions.
  • the second member 40 has recesses 45 at left and right positions corresponding to the temporal regions of the wearer's head.
  • a third member 50 is arranged in the recess 45 .
  • the third member 50 protects the wearer's temporal region together with the insertion member 60 .
  • the main body part 21 has insertion recesses 22 on the left and right positions corresponding to the temporal regions of the wearer's head on the outer surface 21a of the main body part 21 .
  • the insertion recess 22 is a region defined by the second member 40 and the third member 50 .
  • the insertion recess 22 defines an insertion space 10d (see FIG. 8) together with the inner surface 10c of the cap 10 when the main body 21 is housed in the cap 10.
  • the insertion recess 22 is a depression extending from the middle of the liner 20 in the vertical direction to the lower end of the liner 20 on the outer surface 21 a of the liner 20 .
  • the insertion space 10d is a space opened at the lower end of the liner 20.
  • An insertion member 60 is press-fitted into the insertion space 10d.
  • the first member 30 has a shape in which the outer surface 30a of the first member 30 follows the inner surface 10c of the cap body 10. As shown in FIG. Further, the inner surface 30b of the first member 30 is provided with a recess 35 at a position corresponding to the top of the wearer's head. In the depression 35, an interior pad or the like is arranged for enhancing the adhesion between the wearer's head and the helmet 1. - ⁇ In addition, the first member 30 may include a vent hole or the like that penetrates in the thickness direction of the first member 30, that is, across the outer surface 30a and the inner surface 30b.
  • the first member 30 has a bottom surface 31 configured to have a predetermined width along its lower edge.
  • the first member 30 also includes a fitting recess 32 which is a region provided along the bottom surface 31 and recessed upward from the bottom surface 31 .
  • a fitting convex portion 42 included in the second member 40 is inserted into the fitting concave portion 32 .
  • the first member 30 includes engagement protrusions 33a and 33b, which are cylindrical protrusions protruding downward from the fitting recess 32.
  • the engaging protrusions 33 a and 33 b are arranged across the bottom surface 31 and the fitting recess 32 at the front end of the fitting recess 32 .
  • the engaging projections 33 a and 33 b engage with engaging recesses 43 a and 43 b provided on the second member 40 .
  • the first member 30 includes engaging recesses 34 a and 34 b that are cylindrical recesses recessed upward from the bottom surface 31 .
  • the engaging recesses 34 a and 34 b are arranged across the bottom surface 31 and the fitting recess 32 at the rear end of the fitting recess 32 .
  • the engaging recesses 34a and 34b engage with the engaging protrusions 44a and 44b provided on the second member 40 .
  • the second member 40 is an annular member, and has a space in the center through which the wearer's head is inserted.
  • the outer surface 40 a of the second member 40 is continuous with the outer surface 30 a of the first member 30 and has a shape that follows the inner surface 10 c of the cap body 10 .
  • the inner surface 40b of the second member 40 has a shape that is continuous with the inner surface 30b of the first member 30 .
  • the front end of the second member 40 is arranged at a position corresponding to the forehead of the wearer with the liner 20 housed in the cap body 10 .
  • a lower edge of the front end portion of the second member 40 constitutes an upper edge of the opening 10a.
  • the rear end of the second member 40 is arranged at a position covering the back of the wearer's head with the liner 20 housed in the cap body 10 .
  • the side portion of the second member 40 is positioned to cover a portion of the temporal region, such as the temple portion.
  • a rear lower edge of the second member 40 forms part of the insertion opening 10b.
  • the second member 40 has an upper surface 41 configured to have a predetermined width along its upper edge.
  • the second member 40 also includes a fitting projection 42 which is a region provided along the upper surface 41 and protrudes upward from the upper surface 41 .
  • the second member 40 includes engaging recesses 43a and 43b, which are cylindrical recesses recessed downward from the fitting protrusion 42. As shown in FIG.
  • the engaging recesses 43 a and 43 b are arranged so as to straddle the upper surface 41 and the fitting protrusion 42 at the front end of the fitting protrusion 42 .
  • the engaging concave portions 43 a and 43 b engage with the engaging convex portions 33 a and 33 b provided on the first member 30 .
  • the second member 40 includes engagement protrusions 44a and 44b, which are cylindrical projections protruding from the fitting protrusion 42 toward the upper surface 41. As shown in FIG. The engaging protrusions 44 a and 44 b are arranged in the rear portion of the second member 40 so as to straddle the upper surface 41 and the fitting protrusion 42 . The engaging protrusions 44 a and 44 b engage with the engaging recesses 34 a and 34 b provided on the first member 30 .
  • Engagement protrusions 33a, 33b and engagement recesses 43a, 43b are engaged, and engagement recesses 34a, 34b and engagement protrusions 44a, 44b are engaged, whereby the first member 30 and the first member 30 are engaged.
  • the two members 40 are locked to make it difficult for the first member 30 and the second member 40 to be disengaged from each other.
  • the second member 40 has recesses 45 at left and right positions covering the temporal regions of the wearer's head.
  • the concave portion 45 is a region where the bottom surface of the second member 40 is recessed upward.
  • the portion above the concave portion 45 is the portion that connects the portion that protects the frontal region and the portion that protects the occipital region.
  • the recess 45 forms the insertion recess 22 into which the insertion member 60 is inserted by fitting the third member 50 .
  • the recessed portion 45 has a first step portion 45a protruding from the inner surface of the recessed portion 45 in a region on the inner surface 40b side in the thickness direction of the second member 40 .
  • the concave portion 45 has an engaging groove 45b extending in the vertical direction at the central portion in the front-rear direction of the first stepped portion 45a.
  • the engagement groove 45b engages with the engagement projection 55 provided on the third member 50.
  • the recessed portion 45 has a first tapered surface 45c at a corner portion with a region behind the recessed portion 45 on the outer surface 40a.
  • the first tapered surface 45c abuts on the second tapered surface 61 of the insertion member 60 .
  • the vertical width W1 at the position where the recess 45 is provided is the vertical width of other regions, such as the vertical width W2 of the portion corresponding to the forehead and the portion corresponding to the back of the head. is narrower than the width W3 in the vertical direction.
  • the vertical width W3 of the portion corresponding to the back of the head is wider than the vertical width W1 at the position where the recess 45 is provided and the vertical width W2 of the portion corresponding to the forehead.
  • the second member 40 connects the frontal region and the occipital region, the upper portion of the concave portion 45 is also an essential component.
  • the region above the recess 45 is narrower than the frontal region and the occipital region, and is the narrowest in the present embodiment, thereby reducing impact from the third member 50 and the insertion member 60 . is easily transmitted to the first member 30.
  • the pair of left and right third members 50 have shapes that are symmetrical with respect to a plane perpendicular to the left-right direction.
  • the third member 50 includes a front region 51 that is a front region of the third member 50 and a rear region 52 that is a region behind the front region 51 .
  • the front region 51 has a thickness that is continuous with the second member 40 .
  • the inner surface 50a of the third member 50 has a shape in which the inner surface of the front region 51 and the inner surface of the rear region 52 are continuous, and the inner surface 40b of the second member 40 is continuous.
  • the outer surface 51a of the front region 51 is continuous with the outer surface 40a of the second member 40 and has a shape that follows the inner surface 10c of the cap body 10 .
  • the rear region 52 is an example of a thin portion configured with a thickness thinner than the other regions of the body portion 21 .
  • the outer surface 52 a of the rear region 52 is positioned closer to the inner surface 50 a of the third member 50 than the outer surface 51 a of the front region 51 in the thickness direction of the third member 50 . That is, when the liner 20 is accommodated in the cap body 10 , the outer surface 52 a of the rear region 52 is separated from the inner surface 10 c of the cap body 10 .
  • the third member 50 has a first inclined surface 53 on the boundary between the front region 51 and the rear region 52 .
  • the first inclined surface 53 is a part of the outer surface of the third member 50 and is a surface that is inclined forward and downward from the upper end of the third member 50 .
  • the first inclined surface 53 forms the insertion recess 22 of the body portion 21 together with the recess 45 and the outer surface 52 a of the rear region 52 .
  • the first inclined surface 53 is a smooth surface for smoothly guiding the press-fitting of the insertion member 60 into the insertion space 10d, and is an example of a guide surface.
  • the third member 50 has a second stepped portion 54 in a region on the inner surface 50a side of the third member 50 in the thickness direction of the third member 50 among the upper surface and the front and rear side surfaces of the third member 50 .
  • the second stepped portion 54 has a recessed shape corresponding to the first stepped portion 45a. When the third member 50 is fitted into the recess 45, the second stepped portion 54 is fitted with the first stepped portion 45a for positioning.
  • the third member 50 includes an engagement protrusion 55 that protrudes upward from the second stepped portion 54 on the upper surface of the third member 50 .
  • the third member 50 is engaged with the recess 45 by engaging the engagement projection 55 with the engagement groove 45b.
  • the pair of left and right insertion members 60 have shapes that are symmetrical with respect to a plane perpendicular to the left-right direction.
  • the outer surface 60 a of the insert member 60 faces the inner surface 10 c of the cap body 10 .
  • the inner surface 60b of the insertion member 60 is a surface facing the outer surface 52a of the third member 50.
  • a second inclined surface 60 c which is the front side surface of the insertion member 60 , faces the first inclined surface 53 of the third member 50 .
  • the insertion member 60 is one size larger than the insertion space 10d defined by the inner surface 10c of the cap body 10 and the insertion recess 22, and has a size that allows it to be press-fitted into the insertion space 10d.
  • the outer surface 60a of the insertion member 60 is continuous with the outer surface 40a of the second member 40 and the outer surface 51a of the front region 51 and has a shape that follows the inner surface 10c of the cap body 10 .
  • the inner surface 60 b of the insert member 60 has a shape that follows the outer surface 52 a of the posterior region 52 .
  • the inner surface 60 b of the insert member 60 has a second tapered surface 61 at the rear end of the insert member 60 .
  • the second tapered surface 61 contacts the first tapered surface 45 c of the second member 40 .
  • the second inclined surface 60 c has a shape that follows the first inclined surface 53 of the third member 50 . That is, the second inclined surface 60c is a surface inclined forward and downward from the upper end of the insertion member 60. As shown in FIG.
  • the thickness of the insertion member 60 increases from the upper end to the lower end.
  • the insertion member 60 has a thickness that can fill the insertion space 10d.
  • the thickness T at the upper end of the insertion member 60 is preferably 3 mm or more and 30 mm or less. If the thickness T is 3 mm or more, the mechanical strength of the insertion member 60 can be increased, and damage to the insertion member 60 when the insertion member 60 is press-fitted into the insertion space 10d can be suppressed. Moreover, if the thickness T is 30 mm or less, the insertion member 60 can be easily press-fitted into the insertion space 10d.
  • the insertion member 60 should be configured to have the same foaming ratio as that of the foamed resin constituting each member of the body portion 21. is preferred.
  • the expansion ratio here is, for example, a value obtained by dividing the density of the foamed resin before foaming by the apparent density after foaming.
  • any one of the first member 30, the second member 40, the third member 50, and the insertion member 60 may be made of a foamed resin having a higher foaming ratio than the other members. It may be made of a foamed resin having a lower foaming ratio than the member. Also, any one of the first member 30, the second member 40, the third member 50, and the insertion member 60 may be made of a material different from that of the other members. In this case, mechanical properties such as strength and elasticity of the liner 20 can be partially changed.
  • FIG. 7 the procedure for attaching the first member 30, the second member 40, the pair of left and right third members 50, and the pair of left and right insertion members 60 to the cap body 10 will be described below. explain.
  • the body portion 21 is inserted through the insertion opening 10b into the inside of the cap body 10, and the body portion 21 is brought into close contact with the inner surface 10c of the cap body 10 and fixed by fitting.
  • an insertion space 10 d is defined between the insertion recess 22 of the main body 21 and the inner surface 10 c of the cap 10 .
  • the insertion space 10d opens toward the insertion opening 10b of the cap body 10.
  • the lateral dimension of the inner surface 10c of the cap body 10 is maximized at the position covering the wearer's temporal region.
  • the lateral dimension of the outer surface of the liner 20 also needs to be maximized at the position covering the temporal region of the wearer. Therefore, when the liner 20 is attached to the cap body 10 in a state in which the body portion 21 and the insertion member 60 are integrated as in the conventional art, the maximum dimension of the liner 20 is shortened to the extent that it can pass through the insertion opening 10b. forced to transform.
  • the insertion port 10b and the liner 20 are likely to interfere with each other. It becomes a problem.
  • the liner 20 is divided into the main body portion 21 and the insertion member 60, and the main body portion 21 is provided with the insertion recess 22 at a position corresponding to the temporal region of the wearer. 10b can be reduced. Thereby, workability when attaching the liner 20 can be improved. Further, when inserting the body portion 21 into the insertion opening 10b, the body portion 21 can be inserted into the cap body 10 from the insertion opening 10b without deforming the body portion 21 to a large extent. As a result, it is possible to prevent the adhesion between the outer surface 21a of the body portion 21 and the inner surface 10c of the cap body 10 from deteriorating. Therefore, the impact absorption of the liner 20 can be improved.
  • the body part 21 is attached to the inside of the cap body 10 in a state in which the first member 30, the second member 40, and the pair of left and right third members 50 are combined.
  • the first member 30, the second member 40, and the pair of left and right third members 50 may be attached inside the cap body 10 in this order.
  • the inserting member 60 is press-fitted into the inserting space 10d defined inside the cap body 10 .
  • the insertion member 60 is inserted to the deepest part of the insertion space 10 d , that is, to a position where it contacts the inner surface of the recess 45 in the second member 40 .
  • the insertion direction of the insertion member 60 is guided by the contact of the second inclined surface 60c with the first inclined surface 53. Further, by providing the first tapered surface 45c on the second member 40 and providing the second tapered surface 61 on the insertion member 60, the resistance when the insertion member 60 is press-fitted is reduced.
  • the insertion space 10d is filled with the insertion member 60 by pressing the insertion member 60 into the insertion space 10d. That is, the insertion member 60 is fixed while being sandwiched between the cap body 10 and the body portion 21 .
  • the liner 20 is attached to the cap body 10 by the above procedure. After the liner 20 is attached, the cap body 10 may accommodate a shock absorbing material for protecting the wearer's cheeks at a position corresponding to the wearer's cheeks.
  • the outer surface 60a of the insertion member 60 and the inner surface 10c of the cap body 10 are in close contact with each other, and the inner surface 60b of the insertion member 60 and the insertion recess of the main body 21 are aligned. 22 are in close contact with each other. That is, the cap body 10 and the body portion 21 can be brought into close contact with each other through the insertion member 60 that is press-fitted into the insertion space 10d. Therefore, the impact absorption of the liner 20 can be improved. Also, it is possible to suppress positional deviation of the liner 20 arranged inside the cap body 10 .
  • the liner 20 and the cap body 10 can be brought into close contact with each other. Moreover, even if a part of the outer surface of each member constituting the liner 20 is provided with a draft angle in order to facilitate removal from the mold during manufacturing, the liner 20 and the cap body 10 can be easily separated from each other. can be adhered.
  • the cap body 10 and the liner 20 it is necessary to increase the thickness of the cap body 10 and the liner 20 in order to ensure the shock absorption required for the helmet 1 as a whole. was there. If the thickness of the cap body 10 or the liner 20 is increased, the weight of the helmet 1 will increase, and the size of the helmet 1 will increase, resulting in an increase in air resistance.
  • the entire helmet 1 can be It is possible to secure the shock absorption required as. That is, it is possible to make the helmet smaller and lighter than the conventional helmet. As a result, effects such as reduction of air resistance during running, reduction of wearer's fatigue, and improvement of concentration can be obtained.
  • the insertion member 60 may be removable from the state of being press-fitted into the insertion space 10d. In this case, by removing the insertion member 60 inserted into the insertion space 10d, the body portion 21 can be easily removed from the insertion opening 10b. This facilitates dismantling of the helmet 1 and replacement of the liner 20, for example.
  • the amount of interference between the body part 21 and the insertion opening 10b can be reduced by providing the body part 21 with the insertion recess 22 at a position corresponding to the temporal region of the wearer. Thereby, workability when attaching the liner 20 can be improved. Further, when inserting the body portion 21 into the insertion opening 10b, the body portion 21 can be inserted into the cap body 10 from the insertion opening 10b without deforming the body portion 21 to a large extent. As a result, it is possible to prevent the adhesion between the outer surface 21a of the body portion 21 and the inner surface 10c of the cap body 10 from deteriorating. Therefore, the impact absorption of the liner 20 can be improved.
  • the foamed resin forming each member of the main body 21 and the foamed resin forming the insertion member 60 are the same and have the same foaming ratio, so that the impact applied to the helmet 1 can be reduced. It can be evenly distributed and absorbed throughout the liner 20 . Therefore, the impact absorption of the liner 20 can be further improved.
  • the liner 20 By forming the liner 20 from a plurality of members, for example, one of the members forming the liner 20 is formed from a material different from that of the other members, thereby increasing the strength and elasticity of the liner 20. Mechanical properties can be partially changed.
  • the insertion member 60 Since the insertion member 60 has a thickness T of 3 mm or more, the mechanical strength of the insertion member 60 can be increased. Thereby, when the insertion member 60 is press-fitted into the insertion space 10d, it is possible to prevent the insertion member 60 from being damaged. Further, since the insertion member 60 has a thickness T of 30 mm or less, the insertion member 60 can be easily press-fitted into the insertion space 10d.
  • the helmet 100 of the second embodiment is also a full-face helmet, and includes a cap body 10 and a liner 20 that is an example of a shock absorbing material.
  • the same reference numerals are given to the same members and parts as in the first embodiment, and the details thereof are omitted.
  • the liner 20 accommodated inside the cap body 10 includes a main body portion 21 and a pair of left and right insertion members 60 .
  • the body portion 21 includes a first member 30 , a second member 40 , and a pair of left and right third members 50 . Further, the body portion 21 connects a pair of fourth members 70 positioned below the third member 50 and a fifth member 70 that connects ends of the fourth members 70 and is positioned corresponding to the mouth and jaw. a member 80;
  • the fourth member 70 is a member connected to the third member and the insertion member 60 which are positioned corresponding to the left and right cheeks and which are stacked in the thickness direction.
  • the fifth member 80 is a member arranged between the ends of the left and right fourth members 70, and is positioned to cover the mouth and the jaw.
  • the first member 30, the second member 40, the pair of left and right third members 50, the pair of left and right fourth members 70, the fifth member 80, and the pair of left and right insertion members 60 are, for example, made of foamed resin such as polystyrene foam. Consists of a molded body.
  • the liner 20 is made up of nine parts: one first member 30, one second member 40, two third members 50, two insertion members 60, two fourth members 70, and one fifth member 80. It has Each of the nine pieces is constructed from a foam material of the appropriate density for its location. The higher the density of the foam material, the harder the member. Alternatively, each of the nine parts is made of a foam material with an expansion ratio suitable for its location. The lower the expansion ratio of the foamed material, the harder the member. The configuration of each of the nine components will be described below.
  • the first member 30 is made of a foam material with the lowest density among the nine parts (see Fig. 16).
  • "1" to "8" indicate densities, and smaller values indicate lower densities.
  • the first member 30 absorbs the impact on the top of the head and the like.
  • the impact from the second member 40 is absorbed.
  • the first member 30 has penetrating portions 37a penetrating in the vertical direction at positions corresponding to the upper sides of the left and right temporal regions.
  • the penetrating portion 37a extends through the inside of the first member 30 to have a linear shape in the vertical direction at a position corresponding to the upper region of the temple.
  • Three through portions 37a are arranged side by side in the front-rear direction on each of the right side and the left side.
  • the number of penetrating portions 37a provided on each of the right side and the left side is determined according to the required strength, and is not limited to three. For example, it may be two or less, or four or more.
  • each through portion 37a faces the outer surface 30a.
  • the other end (second end) of each through portion 37a is a fitting recess 32 provided in the bottom surface 31 that abuts against the top surface 41 of the second member 40. It faces a position adjacent to the constituting vertical wall 32a.
  • the portion where the penetrating portion 37a is provided is a portion of the first member 30 that is the softest among all nine parts and is softer than the other portions.
  • the bottom surface 31 having the fitting recess 32 is a first abutment surface that abuts against the top surface 41 of the second member 40 .
  • the second member 40 is made of a foam material having the second lowest density after the first member 30 (see FIG. 16).
  • the second member 40 is an attachment reference member for attaching the first member 30 , the third member 50 , the insertion member 60 and the fourth member 70 .
  • the portion above the concave portion 45 is an essential component that connects the portion that protects the frontal region and the portion that protects the occipital region.
  • the second member 40 absorbs the impact from the third member 50 and the insertion member 60 and transmits the impact to the first member 30 to disperse the impact.
  • the upper surface 41 of the second member 40 is provided with a fitting protrusion 42 that is a region that protrudes upward.
  • the upper surface 41 having the fitting protrusion 42 is a second abutment surface that abuts against the bottom surface 31 (first abutment surface) of the first member 30 .
  • a portion of the upper surface 41 having the fitting convex portion 42 that closes the other end of each through portion 37a serves as a closing portion.
  • the non-through hole 37 is formed by the through portion 37 a provided in the first member 30 and the closed portion provided in the upper surface 41 of the second member 40 .
  • the non-through hole 37 extends vertically between the outer surface 30 a of the first member 30 and the bottom surface 31 (first mating surface) at a position above the second member 40 .
  • Three non-through holes 37 are arranged side by side in the front-rear direction on each of the right side and the left side.
  • the non-through hole 37 which will be described in detail later, is a portion that adjusts the hardness or softness of the liner 20, and deforms faster than other portions when a large impact at high speed or low speed is applied. It becomes the part that absorbs the impact.
  • the position of the non-through hole 37 is above the portion where the third member 50 and the insertion member 60 are arranged.
  • the portion of the non-through hole 37 is a portion that is softer and weaker than the other regions of the first member 30 and the second member 40 .
  • the third member 50 and the insertion member 60 protect the temples and the like from impact, and the portion of the first member 30 provided with the non-through holes 37 absorbs impact applied to the third member 50 and the insertion member 60. It absorbs through the upper portion of the recess 45 of the second member 40 .
  • the vertical width W1 at the position where the recess 45 is provided is the vertical width of other regions, such as the vertical width W2 of the portion corresponding to the forehead and the portion corresponding to the back of the head. is narrower than the width W3 in the vertical direction (see FIG. 11).
  • the vertical width W3 of the portion corresponding to the back of the head is wider than the vertical width W1 at the position where the recess 45 is provided and the vertical width W2 of the portion corresponding to the forehead.
  • the second member 40 is an attachment reference member for attaching the first member 30, the third member 50, the insertion member 60, and the fourth member 70.
  • the upper portion of the concave portion 45 is an essential component that connects the portion that protects the forehead and the portion that protects the back of the head.
  • the region above the recess 45 is narrower than the frontal region and the occipital region. The impact and the impact from the fourth member 70 are easily transmitted through the second member 40 to the region of the first member 30 where the penetrating portion 37a is provided.
  • the recess 45 forms the insertion recess 22 (see FIG. 11) into which the insertion member 60 is inserted by fitting the third member 50 .
  • the pair of left and right third members 50 includes a front region 51 that is a front region of the third member 50 and a rear region 52 that is a region behind the front region 51 .
  • the inner surface 50a of the third member 50 has a shape in which the inner surface of the front region 51 and the inner surface of the rear region 52 are continuous and the inner surface 40b of the second member 40 is continuous.
  • the outer surface 51a of the front region 51 is continuous with the outer surface 40a of the second member 40 and has a shape that follows the inner surface 10c of the cap body 10 .
  • the rear region 52 is a thin-walled portion that is thinner than other regions of the main body 21 .
  • the outer surface 52 a of the rear region 52 is separated from the inner surface 10 c of the cap body 10 .
  • the space becomes the insertion recess 22 in which the insertion member 60 is accommodated.
  • the third member 50 has a lower surface 56 extending over the front region 51 and the rear region 52 .
  • the lower surface 56 is a region that spans the front region 51 and the rear region 52, and has a flat surface 56a at a position biased toward the front region 51, and a concave surface that is recessed toward the second member 40 at the remaining portion. 56b.
  • the outer surface 60a of the insert member 60 faces the inner surface 10c of the cap body 10 when the insert member 60 is accommodated in the cap body 10.
  • the inner surface 60b of the insertion member 60 is a surface facing the outer surface 52a of the third member 50.
  • Insert member 60 includes a lower surface 62 .
  • the lower surface 62 is a surface that is continuous with the lower surface 56 of the third member 50 when the insertion member 60 is inserted into the insertion recess 22 .
  • the lower surface 62 has a first engaging wall 63 projecting downward from the lower surface 62 .
  • the density of the second member 40 is lower than or equal to the density of the third member 50 and the insertion member 60 (see FIG. 16). Since the third member 50 and the insert member 60 are harder than the second member 40, they can protect the temples from impact. Also, impact applied to the third member 50 can be absorbed through the second member 40 and the first member 30 . Also, the density of the third member 50 is the same as the density of the insertion member 60 or higher than the density of the insertion member 60 . Thereby, the impact applied to the helmet 1 can be dispersed and absorbed by the third member 50 and the insertion member 60 .
  • the fourth member 70 is positioned below the third member 50 .
  • the fourth member 70 is a member having a curved shape that is positioned corresponding to the left and right cheeks and extends from a position corresponding to the cheeks toward the jaw.
  • the density of the third member 50 is the same as or lower than the density of the fourth member 70, and the density of the insertion member 60 is lower than the density of the fourth member 70 (see FIG. 16).
  • the fourth member 70 that protects the cheeks is harder than the third member 50 and the insertion member 60, and can protect the cheeks from impact. Furthermore, the impact applied to the fourth member 70 can be dispersed and absorbed by the third member 50 , the insert member 60 , the second member 40 and the first member 30 .
  • the outer surface 70 a of the fourth member 70 is a surface that is continuous with the outer surface 60 a of the insertion member 60 and the outer surface 51 a of the front region 51 of the third member 50 .
  • the inner surface 70b of the fourth member 70 is a surface that is continuous with the inner surface 50a of the third member 50 .
  • a first end surface 71 formed at the upper end of the fourth member 70 is a surface that abuts against the lower surface 56 of the third member 50 and the lower surface 62 of the insertion member 60 .
  • the first end surface 71 has a second engagement wall 72 that is continuous with the outer surface 70a.
  • the first engaging wall 63 is positioned inside and the second engaging wall 72 is positioned outside.
  • the first end surface 71 of the fourth member 70 is positioned with respect to the lower surface 56 of the third member 50 and the lower surface 62 of the insertion member 60 .
  • the first end surface 71 is a surface that abuts against the flat surface 56 a of the lower surface 56 of the third member 50 and the lower surface 62 of the insertion member 60 .
  • the first end surface 71 also has a curved surface 73 that abuts against the concave surface 56 b of the third member 50 .
  • connection surfaces 81 provided at both ends of the fifth member 80 are connected to the second end surface 75 formed at the lower end of the fourth member 70 .
  • the upper edge of the fourth member 70 constitutes the lower edge of the opening 10a.
  • the lower edge of the fourth member 70 forms part of the insertion opening 10b below the temporal region.
  • the fifth member 80 is a member arranged between the ends of the left and right fourth members 70 and is positioned to cover the mouth and jaw.
  • the upper edge of the fifth member 80 constitutes the center of the lower edge of the opening 10a.
  • the lower edge constitutes a part of the insertion opening 10b below the jaw.
  • the outer surface 80a of the fifth member 80 is a surface continuous with the outer surface 70a of the fourth member 70 .
  • the inner surface 80b of the fifth member 80 is a surface that is continuous with the inner surface 70b of the fourth member 70 .
  • the right and left ends of the fifth member 80 are provided with connection surfaces 81 for connection with the fourth member 70 .
  • a fifth member 80 is positioned and attached between the second end surfaces 75 of the left and right fourth members 70 .
  • the density of the fifth member 80 is the same as or higher than the density of the fourth member 70, and the density of the fifth member 80 is the highest (see FIG. 16).
  • the fifth member 80 is the stiffest of the liner 20 and can protect the mouth and jaw. The impact applied to the fifth member 80 can be dispersed and absorbed through the fourth member 70 , the third member 50 , the insertion member 60 , the second member 40 and the first member 30 .
  • the liner 20 configured as described above includes one first member 30, one second member 40, two third members 50, two insertion members 60, two fourth members 70, and one A total of nine parts of the fifth member 80 are provided.
  • the liner 20 is provided with nine parts to vary the density, ie, the hardness, according to the location of the head so as to provide fine-tuned protection from impact according to the characteristics of each part of the head.
  • the densities of the first member 30, the second member 40, the third member 50, the insertion member 60, the fourth member 70, and the fifth member 80 are shown in Fig. 16 for each size (S, M, L, XL). is as shown.
  • "1" to “8" indicate densities, and smaller values indicate lower densities.
  • "1” indicates a density of about 0.01 to 0.0125 (g/cm 3 )
  • "2" indicates a density of about 0.0111 to 0.0143 (g/cm 3 ).
  • “3” indicates a density of about 0.0125 to 0.0167 (g/cm 3 )
  • "4" indicates a density of about 0.0143 to 0.020 (g/cm 3 ).
  • the body part 21 is inserted through the insertion opening 10b into the inside of the cap body 10, and the body part 21 is brought into close contact with the inner surface 10c of the cap body 10 and fixed by fitting.
  • an insertion space 10 d is defined between the insertion recess 22 of the main body 21 and the inner surface 10 c of the cap 10 .
  • the insertion space 10d opens toward the insertion opening 10b of the cap body 10.
  • the insertion member 60 is press-fitted into the insertion space 10d defined inside the cap body 10 .
  • the insertion member 60 is inserted to the deepest part of the insertion space 10 d , that is, to a position where it contacts the inner surface of the recess 45 in the second member 40 .
  • the liner 20 includes one first member 30, one second member 40, two third members 50, two insertion members 60, two fourth members 70, and one fifth member A total of 80 has 9 parts. Therefore, each of the 9 parts can be constructed of foam of the appropriate density for its location.
  • the density of the first member 30 is the lowest, followed by the density of the second member 40. Thereby, the first member 30 can absorb impact directly applied to the second member 40 by the first member 30 . In addition, the first member 30 can absorb impact applied to any one or more of the third member 50, the insertion member 60, the fourth member 70, and the fifth member 80 via the second member 40. can.
  • the density of the second member 40 is lower than the density of the third member 50 and lower than or equal to the density of the insertion member 60 . Since the third member 50 and the insert member 60 are harder than the second member 40, they can protect the temples from impact. Also, impact applied to the third member 50 can be absorbed through the second member 40 and the first member 30 .
  • the density of the third member 50 is the same as or higher than the density of the insertion member 60 . Thereby, the impact applied to the helmet 1 can be dispersed and absorbed by the third member 50 and the insertion member 60 . Also, the insertion member 60 can be press-fitted into the insertion recess 22 .
  • the density of the third member 50 is the same as or lower than the density of the fourth member 70, and the density of the insertion member 60 is lower than the density of the fourth member 70.
  • the fourth member 70 that protects the cheeks is harder than the third member 50 and the insertion member 60 and can protect the cheeks from impact. Furthermore, the impact applied to the fourth member 70 can be dispersed and absorbed by the third member 50 , the insert member 60 , the second member 40 and the first member 30 .
  • the density of the fifth member 80 is the same as or higher than the density of the fourth member 70, and the density of the fifth member is the highest.
  • the fifth member 80 is the stiffest of the liner 20 and can protect the mouth and jaw. The impact applied to the fifth member 80 can be dispersed and absorbed through the fourth member 70 , the third member 50 , the insertion member 60 , the second member 40 and the first member 30 .
  • the vertical width W1 at the position where the recess 45 is provided is the vertical width of other regions, such as the vertical width W2 of the portion corresponding to the forehead. It is configured to be narrower than the vertical width W3 of the portion corresponding to the back of the head (see FIG. 11).
  • the upper region of the recess 45 has a narrower width in the vertical direction than the regions of the frontal region and the occipital region. It is made easy to transmit to the area in which the penetrating portion 37a is provided.
  • the non-through hole 37 is positioned above the portion where the third member 50 and the insertion member 60 are arranged.
  • the portion of the non-through hole 37 is softer than the first member 30 and the second member 40 and is a weak portion.
  • the non-through hole 37 can effectively absorb the impact applied to the third member 50 and the insertion member 60 at the portion of the non-through hole 37 .
  • the non-through hole 37 can be configured by providing a through portion 37a in the first member 30 with a tool such as a drill and closing the end portion with the second member 40. Therefore, the processing for providing the non-through holes 37 is facilitated.
  • the non-through hole 37 may be provided in front of the helmet 100, that is, above the opening 10a.
  • a vertically extending through portion 37a is provided in the region above the opening portion 10a of the first member 30, and the through portion 37a is closed by the upper surface 41 of the second member 40. is provided.
  • the non-through hole 37 may be provided on both the upper side of the third member 50 and the insertion member 60 and the upper side of the opening 10a, or may be provided on either one.
  • the non-through hole 37 is not limited to being provided in the through portion 37 a of the first member 30 .
  • the second member 40 located above the third member 50 and the insertion member 60 is provided with a through portion 37a extending in the vertical direction, and the through portion 37a is closed by at least one of the third member 50 and the insertion member 60.
  • the non-through hole 37 may be provided by doing so.
  • the non-through hole 37 is selected from a through hole that penetrates one member selected from the first member 30, the second member 40, etc., and the first member 30, the second member 40, etc. that closes this through hole. It does not have to be composed of the closing part of another member that is attached.
  • the non-through hole 37 extends through one member selected from the first member 30, the second member 40, etc. from one of its outer surface and inner surface toward the other to an intermediate position of the member. It may be a through hole.
  • the non-through hole 37 may have an open end on the outer surface of the member and extend from the outer surface in the direction of the helmet center.
  • blind hole 37 may have an open end on the inner surface of the member and extend toward the interior of the member.
  • the non-through hole 37 may be configured by one member instead of by two members working together. That is, the non-through hole 37 may be configured by the first member 30 alone, or the non-through hole 37 may be configured by the second member 40 alone. Furthermore, the non-through hole 37 may be configured by the third member 50 alone, or the non-through hole 37 may be configured by the insertion member 60 alone. Furthermore, the non-through hole 37 may be configured by the fourth member 70 alone, or the non-through hole 37 may be configured by the fifth member 80 alone.
  • the non-through hole 37 can be configured by opening with a tool or the like after molding, or can be formed with a mold during molding.
  • the vertical width W1 at the position where the recess 45 is provided is the same as the vertical width W2 of the portion corresponding to the frontal region and the vertical width W3 of the portion corresponding to the occipital region. There may be one or it may be wide.
  • the fifth member 80 may not be the member with the highest density among the nine parts. - In the second embodiment, the density of the fourth member 70 may be higher than the density of the fifth member 80 .
  • the density of the third member 50 may be higher than the density of the fourth member 70 .
  • the density of the insertion member 60 may be the same as or higher than the density of the fourth member 70 .
  • the density of the third member 50 may be lower than the density of the insertion member 60 .
  • the density of the second member 40 may be the same as or higher than the density of the third member 50 . Also, the density of the second member 40 may be higher than the density of the insertion member 60 . - In 2nd Embodiment, the 1st member 30 does not need to be a member with the lowest density.
  • the liner 20 may be configured with more than nine parts, or may be configured with fewer parts.
  • the thickness T of the insertion member 60 is limited as long as it can be smoothly inserted into the insertion space 10d and has sufficient strength for the press-fitting. However, it may be appropriately determined according to the size, shape, etc. of the insertion space 10d and the material, shape, etc. of the insertion member 60 .
  • the thickness T of the insert member 60 may be greater than 30 mm and less than 3 mm.
  • the insertion member 60 may be configured by pasting or overlapping a plurality of members such that the thickness T is, for example, 3 mm or more and 30 mm or less.
  • the main body 21 has an insertion recess 22 at a position covering the temporal region of the wearer's head.
  • the insertion recess 22 is not limited to this, and the insertion recess 22 may be provided at any position on the main body 21 .
  • the insertion recess 22 may be provided at a position covering the back of the wearer's head in the main body 21 .
  • the insertion recesses 22 may be provided at both the position covering the sides of the wearer's head and the position covering the back of the wearer's head.
  • the present invention is not limited to this. It may be a single member. Also, the first member 30 and the second member 40 may be a single member. Further, for example, one of the first member 30, the second member 40, and the third member 50 may be divided into a plurality of members.
  • a configuration in which one insertion member 60 is press-fitted into one insertion space 10d is exemplified. 60 may be press-fitted.
  • the outer surface 60a of the insertion member 60 and the inner surface 10c of the cap body 10 are in close contact, and the inner surface 60b of the insertion member 60 and the insertion recess 22 of the main body 21 are in close contact. If so, the insertion member 60 does not have to be press-fitted to the deepest part of the insertion space 10d. That is, the upper surface or the front and rear side surfaces of the insertion member 60 may be separated from the insertion recess 22 as long as the body portion 21 is in close contact with the cap body 10 via the insertion member 60 .
  • the second member 40 is divided into, for example, a portion corresponding to the frontal region, a portion corresponding to the occipital region, and a portion corresponding to the temporal region connecting these two portions.
  • the configuration may be such that there are four pieces in total.
  • the helmets 1 and 100 are not limited to full-face helmets.
  • it may be a flip-up helmet whose chin can be raised, an open face helmet, a helmet with a detachable chin, or a convertible helmet whose chin can be rotated and fixed to the back of the head.

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  • Helmets And Other Head Coverings (AREA)
PCT/JP2021/035640 2021-02-05 2021-09-28 ヘルメットおよびヘルメットの製造方法 WO2022168366A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN202180090984.5A CN116709944A (zh) 2021-02-05 2021-09-28 头盔及头盔的制造方法
JP2022579332A JPWO2022168366A1 (zh) 2021-02-05 2021-09-28
EP21924754.1A EP4289304A1 (en) 2021-02-05 2021-09-28 Helmet and method for manufacturing helmet
US18/275,295 US20240090612A1 (en) 2021-02-05 2021-09-28 Helmet and method for manufacturing helmet

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JP2021-017071 2021-02-05
JP2021017071 2021-02-05

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WO2022168366A1 true WO2022168366A1 (ja) 2022-08-11

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EP (1) EP4289304A1 (zh)
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WO (1) WO2022168366A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269811A (ja) * 1985-09-24 1987-03-31 ヤマハ発動機株式会社 ヘルメツトの内張り構造
JP2000080514A (ja) * 1998-08-31 2000-03-21 Honda Access Corp ヘルメット
JP2001295129A (ja) * 2000-04-04 2001-10-26 Honda Motor Co Ltd ヘルメット
JP2009209502A (ja) * 2008-03-06 2009-09-17 Arai Helmet Ltd ネックパッドの取付け構造
JP2019085663A (ja) 2017-11-02 2019-06-06 株式会社アライヘルメット ヘルメット
US20200060374A1 (en) * 2017-03-17 2020-02-27 VICIS, Inc. Removable Communications Module Pocket

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6269811A (ja) * 1985-09-24 1987-03-31 ヤマハ発動機株式会社 ヘルメツトの内張り構造
JP2000080514A (ja) * 1998-08-31 2000-03-21 Honda Access Corp ヘルメット
JP2001295129A (ja) * 2000-04-04 2001-10-26 Honda Motor Co Ltd ヘルメット
JP2009209502A (ja) * 2008-03-06 2009-09-17 Arai Helmet Ltd ネックパッドの取付け構造
US20200060374A1 (en) * 2017-03-17 2020-02-27 VICIS, Inc. Removable Communications Module Pocket
JP2019085663A (ja) 2017-11-02 2019-06-06 株式会社アライヘルメット ヘルメット

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JPWO2022168366A1 (zh) 2022-08-11
US20240090612A1 (en) 2024-03-21
EP4289304A1 (en) 2023-12-13
CN116709944A (zh) 2023-09-05

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