WO2023191286A1 - Casque équipé de moyens d'aération - Google Patents

Casque équipé de moyens d'aération Download PDF

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Publication number
WO2023191286A1
WO2023191286A1 PCT/KR2023/001418 KR2023001418W WO2023191286A1 WO 2023191286 A1 WO2023191286 A1 WO 2023191286A1 KR 2023001418 W KR2023001418 W KR 2023001418W WO 2023191286 A1 WO2023191286 A1 WO 2023191286A1
Authority
WO
WIPO (PCT)
Prior art keywords
vent
helmet
vent hole
cover part
fluid
Prior art date
Application number
PCT/KR2023/001418
Other languages
English (en)
Korean (ko)
Inventor
김성광
조정현
Original Assignee
(주) 에이치제이씨
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 (주) 에이치제이씨 filed Critical (주) 에이치제이씨
Publication of WO2023191286A1 publication Critical patent/WO2023191286A1/fr

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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
    • A42B3/28—Ventilating arrangements
    • A42B3/281—Air ducting systems
    • 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
    • A42B3/28—Ventilating arrangements

Definitions

  • the present invention relates to a helmet equipped with a vent means.
  • This helmet has an opening at the front to secure the wearer's front view.
  • This opening may be provided with a shield that can be selectively opened and closed to block wind and dust flowing in during operation.
  • an air vent may be installed in the helmet through which outside air flows in and breath is discharged to the outside.
  • Patent Document 1 KR 20-0168837 Y1
  • One aspect of the present invention is provided with a vent part in which a vent hole is formed and a cover part that slides with respect to the vent part, and is provided with vent means that can control the amount of fluid flowing in through the vent hole and the amount of fluid flowing out through the vent hole. It's about a helmet.
  • a helmet equipped with a vent means is provided in a helmet body, a vent part with a vent hole for communicating fluid to the inside and outside of the helmet body, and a first position and a second position with respect to the vent part. It slides between the two, is spaced farther away from the vent part when in the second position compared to the first position, and has a minimum amount of fluid communicated through the vent hole when it is in the first position, and is at the second position. It includes a cover part that maximizes the amount of fluid communicated through the vent hole.
  • a first guide part is formed in the vent part, and a second guide part is formed in the cover part to be slidably coupled to the first guide part.
  • the first guide part moves in one direction. It protrudes in a direction away from the vent part.
  • the first guide part is a seating part extending long in the direction in which the cover part slides, and the second guide part is coupled to the seating part to provide the seating part. It is a protrusion that protrudes to slide along the part.
  • the vent hole includes a first vent hole through which fluid outside the helmet body flows, and the cover portion is positioned to face the vent portion.
  • a main body part disposed, and protruding from the main body part in the direction of the vent part, when the cover part is in the first position, it is disposed ahead of the first vent hole, and when the cover part is in the second position, the It includes a blocking portion disposed rearward than the first vent hole.
  • the vent hole includes a second vent hole through which fluid inside the helmet body is discharged, and when the cover part is in the first position, The amount of fluid discharged from the second vent hole when it is close to the vent part is minimum, and when it is in the second position, the amount of fluid discharged from the second vent hole away from the vent part is maximum.
  • the vent hole includes a first vent hole through which fluid outside the helmet body flows, and the second vent hole is the first vent. It is formed at the rear compared to the hole.
  • the helmet equipped with a vent means it further includes a fixing part that fixes the cover part to the first position and the second position.
  • the fixing part is formed on a protrusion formed on one of the cover part and the vent part, and on the other one of the cover part and the vent part.
  • the protrusion is inserted and slides, and includes a sliding part that fixes the protrusion when the cover part is in the first position and the second position.
  • the sliding portion includes a first support member and a second support member, and the first support member and the second support member extend parallel to each other.
  • the first support member and the second support member at both ends of the sliding part are formed in a shape corresponding to the protrusion, and the gap between the first support member and the second support member between both ends of the sliding part is It is smaller than the diameter of the protrusion.
  • the vent portion is provided on the upper side of the helmet body.
  • the amount of fluid flowing in through the vent hole and the amount of fluid flowing out through the vent hole can be adjusted by providing a vent portion with a vent hole and a cover portion that slides with respect to the vent portion.
  • FIG. 1 is a perspective view of a helmet equipped with a vent means according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of a helmet equipped with a vent means according to an embodiment of the present invention
  • Figure 3 is a cross-sectional view of a helmet equipped with a vent means according to an embodiment of the present invention
  • Figures 4 to 5 are enlarged cross-sectional views of area X in Figure 3;
  • Figure 6 is an exploded perspective view of the vent portion and cover portion of a helmet equipped with a vent means according to an embodiment of the present invention
  • FIG. 7 to 8 are perspective views of the vent portion and the cover portion of a helmet equipped with a vent means according to an embodiment of the present invention
  • FIGS. 9 to 10 are cross-sectional views of the first and second fastening portions of a helmet equipped with a vent means according to an embodiment of the present invention.
  • Figures 11 and 12 are cross-sectional views showing the operation process of a helmet equipped with a vent means according to an embodiment of the present invention.
  • Figure 1 is a perspective view of a helmet equipped with a vent means according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of a helmet equipped with a vent means according to an embodiment of the present invention.
  • a helmet equipped with a vent means is provided in the helmet body 10, and has a vent hole 110 that communicates fluid into and out of the helmet body 10.
  • a vent hole 110 that communicates fluid into and out of the helmet body 10.
  • the helmet body 10 is made of a material such as hard synthetic resin with high strength.
  • an internal member 20 is disposed inside the helmet body 10.
  • the internal member 20 is an absorber made of expanded polystyrene (EPS) or the like and has appropriate strength and elasticity.
  • the internal member 20 may include a first internal member 21, a second internal member 23, and a third internal member 25 with different densities in order to increase shock absorption performance.
  • the internal member 20 does not necessarily include three internal members (20, first, second, and third internal members (21, 23, 25)), but may include one internal member (20) or two. It may include one or four or more internal members 20. Additionally, a pad, etc. may be provided inside the internal member 20 to improve wearing comfort.
  • the shield 30 serves to open and close the opening formed in the front of the helmet body 10, and is rotatably coupled to both sides (e.g., ratchets) of the helmet body 10, so that the helmet body ( 10), the opening can be closed or opened by rotating.
  • the chin guard (50) serves to protect the wearer's chin, and may be extended in an arc shape so that it can be placed in front of the wearer's chin as a whole. At this time, both ends of the chin guard 50 are rotatably coupled to both sides (e.g., ratchets) of the helmet main body 10, and are placed in front of the wearer's chin or on the upper or rear side of the helmet main body 10. can be placed.
  • the helmet equipped with a vent means includes a vent part 100 and a cover part 200, and the vent part 100 and the cover part 200 are, for example, located at the upper center of the helmet body 10. It is provided to communicate fluid into and out of the helmet body 10.
  • a vent part 100 and a cover part 200 located at the upper center of the helmet body 10. It is provided to communicate fluid into and out of the helmet body 10.
  • the vent unit 100 is provided on the upper side of the helmet body 10 and serves to support the sliding cover unit 200.
  • the vent portion 100 is formed as a whole in a plate shape, and can be coupled and fixed to the upper center of the helmet body 10.
  • the vent portion 100 may be coupled to the helmet body 10, and the base portion 150 is formed with an outer portion 151 formed in a U shape. ) and a connection portion 153 connecting the outer portion 151.
  • the outer portion 151 of the base portion 150 surrounds the outside of the vent portion 100, and the connection portion 153 of the base portion 150 may support the lower surface of the vent portion 100.
  • a vent hole 110 is formed in the vent portion 100 to communicate fluid to the inside and outside of the helmet body 10.
  • the vent hole 110 extends not only to the vent portion 100 but also to the helmet body 10 and the internal member 20, thereby enabling fluid communication between the inside and outside of the helmet body 10.
  • the vent hole 110 may include a first vent hole 113 and a second vent hole 115.
  • the first vent hole 113 is through which fluid outside the helmet body 10 flows, and may be formed in the front of the vent portion 100. Specifically, when the wearer moves forward on a bike, etc., fluid (outside air) outside the helmet body 10 may naturally flow in through the first vent hole 113.
  • first vent holes 113 may be formed in the vent unit 100, and the two first vent holes 113 are arranged to be equally spaced from the horizontal center of the vent unit 100. It can be. Meanwhile, the first vent hole 113 allows fluid from outside the helmet body 10 to flow in or is blocked by the blocking portion 220 of the cover portion 200, and specific details regarding this will be described later.
  • the second vent hole 115 is through which the fluid inside the helmet body 10 is discharged, and may be formed at the rear of the vent unit 100 (that is, the second vent hole 115 is the same as the first vent). may be formed rearward compared to the hole 113).
  • the fluid (outside air) outside the helmet body 10 may move from the upper side of the second vent hole 115, and accordingly, the upper side of the second vent hole 115
  • the pressure is relatively low (since the moving speed of the outside air is high), so the fluid inside the helmet body can be discharged through the second vent hole 115.
  • one second vent hole 115 may be formed in the horizontal center of the vent portion 100. Meanwhile, the amount of fluid discharged from the second vent hole 115 is controlled by the cover part 200, and details regarding this will be described later.
  • the cover part 200 slides between the first and second positions with respect to the vent part 100 and plays a role in controlling the amount of fluid communicated through the vent hole 110.
  • the cover part 200 is formed as a whole in a plate shape and can be slidably coupled to the vent part 100.
  • the cover part 200 may slide with respect to the vent part 100 while being guided by the first and second guide parts 300 and 400.
  • the first guide part 300 is formed on the vent part 100
  • the second guide part 400 is formed on the cover part 200 and can be slidably coupled to the first guide part 300. there is.
  • the first guide portion 300 may be a seating portion that extends long in the direction in which the cover portion 200 slides (forward-backward direction), and the second guide portion 400 is coupled to the seating portion and moves along the seating portion. It may be a protrusion that protrudes to slide.
  • the first guide part 300 (seating part) has a bottom part 310 in contact with the end of the second guide part 400 (protrusion) and a side part 320 supporting the side of the second guide part 400 (protrusion). ) may include (see enlarged view of Figure 2). Accordingly, the second guide part 400 may slide along the bottom part 310 of the first guide part 300 while being supported on the side part 320 of the first guide part 300.
  • first guide part 300 and one second guide part 400 are formed at the rear of the two first vent holes 113, and one each is formed on the left and right sides of the second vent hole 115.
  • Two may be formed at the horizontal center of the vent part 100 and the cover part 200. That is, six first guide parts 300 and six second guide parts 400 may be formed, but this is an example and is not necessarily limited thereto.
  • the cover part 200 is slid between the first position and the second position with respect to the vent part 100 by the first and second guide parts 300 and 400. , It is spaced farther away from the vent unit 100 when it is in the second position compared to the first position. That is, the cover part 200 may be spaced further away from the vent part 100 as it is slid from the first position to the second position.
  • the first guide part 300 moves away from the vent part 100 as it moves in one direction (A). It may protrude in a direction away from you.
  • the bottom portion 310 of the first guide portion 300 protrudes in a direction away from the vent portion 100 in one direction (A), thereby contacting the bottom portion 310 of the first guide portion 300.
  • the second guide part 400 may become farther away from the vent part 100 in one direction (A). Accordingly, the cover part 200 on which the second guide part 400 is formed can be spaced farther away from the vent part 100 in one direction (A, from the first position to the second position) (see FIG. 5).
  • the cover part 200 is spaced farther away from the vent part 100 when it is in the second position compared to the first position, and communicates through the vent hole 110 when the cover part 200 is in the first position.
  • the amount of fluid flowing may be minimal, and the amount of fluid communicated through the vent hole 110 when the cover part 200 is in the second position may be maximum.
  • the cover part 200 may include a main body part 210 and a blocking part 220.
  • the main body 210 may be arranged to face the vent 100, and the blocking part 220 may protrude from the main body 210 toward the vent 100 (downward direction).
  • the blocking unit 220 is disposed ahead of the first vent hole 113 when the cover unit 200 is in the first position (see FIG. 4), and when the cover unit 200 is in the second position ( 5), it may be placed rearward of the first vent hole 113.
  • the helmet body which flows in from the front when the bike etc.
  • the external fluid (outside air) may be blocked by the blocking unit 220 and may not flow into the first vent hole 113.
  • the blocking part 220 is disposed rearward than the first vent hole 113 (when the cover part 200 is in the second position, see FIG. 5)
  • the helmet flowing in from the front when the bike, etc. moves forward.
  • Fluid (outside air) outside the main body 10 may flow into the first vent hole 113 without being blocked by the blocking unit 220.
  • the cover part 200 is placed in the first or second position, the relative position of the blocking part 220 and the first vent hole 113 changes, thereby preventing the fluid outside of the helmet body 10 from flowing. It is possible to control whether (outside air) flows into the first vent hole 113.
  • the cover part 200 is spaced farther away from the vent part 100 when it is in the second position compared to the first position. Accordingly, when the cover part 200 is in the first position (see FIG. 4), it approaches the vent part 100, and the space between the cover part 200 and the vent part 100 becomes relatively small (or closed). Ultimately, the space between the cover part 200 and the vent part 100, which serves as an outlet for the air flow flowing out to the outside through the second vent hole 115, becomes small (or closed), so that the second vent The amount of fluid inside the helmet body 10 discharged through the hole 115 can be minimized. On the other hand, when the cover part 200 is in the second position (see FIG.
  • the cover part 200 moves away from the vent part 100, and the space between the cover part 200 and the vent part 100 becomes relatively large.
  • the space between the cover part 200 which serves as an outlet for the air flow flowing out to the outside through the second vent hole 115, and the vent part 100 becomes larger, making the second vent hole 115
  • the amount of fluid inside the helmet body 10 discharged through the helmet can be maximized.
  • the cover part 200 when the cover part 200 is placed in the first or second position, the space between the cover part 200 and the vent part 100 changes, so that the helmet is discharged into the second vent hole 115.
  • the amount of fluid inside the main body 10 can be adjusted.
  • the amount of fluid communicated through the first vent hole 113 and the second vent hole 115 may be minimal (see FIG. 4), and the cover part 200 When is in the second position, the amount of fluid communicated through the first vent hole 113 and the second vent hole 115 may be maximum (see Figure 5).
  • the fixing part 500 may further include a fixing part 500 that fixes the cover part 200 in the first position and the second position.
  • the fixing part 500 may include a protruding part 510 and a sliding part 520.
  • the protrusion 510 is formed on the cover part 200 to protrude in the direction of the vent part 100, and may be formed, for example, in a cylindrical shape.
  • the sliding part 520 may be formed in the empty space 521 at the center of the vent part 100, the protrusion 510 is inserted and slid, and the cover part 200 can be positioned at the first and second positions. At this time, the protrusion 510 can be fixed.
  • the sliding part 520 may include a first support member 523 and a second support member 525.
  • the first support member 523 and the second support member 525 extend parallel to each other in the empty space 521 of the vent part 100, and both ends of the first support member 523 and the vent part 100 ), both ends of the empty space 521, and both ends of the second support member 525 and both ends of the empty space 521 of the vent part 100 may be connected by an extension part 527.
  • the first support member 523 and the second support member 525 at both ends of the sliding part 520 both ends of the first and second support members 523 and 525) have a shape corresponding to the protrusion 510.
  • the gap between the first support member 523 and the second support member 525 between both ends of the sliding portion 520 (between both ends of the first and second support members 523 and 525) is the protrusion 510.
  • the protrusion 510 may be smaller than the diameter of Since the first support member 523 and the second support member 525 at both ends of the sliding part 520 are shaped to correspond to the protrusion 510, the protrusion 510 is connected to the first support member 523 and the second support member 525. 2 It can be surrounded and fixed by the support member 525.
  • the protrusions 510 at both ends of the sliding part 520 are surrounded and fixed by the first support member 523 and the second support member 525, and at this time, the cover part 200 is positioned at the first position or the second support member 525. There can be 2 positions.
  • the protrusion 510 is the first support member ( 523) and the second support member 525 may be bent to increase the gap between the first support member 523 and the second support member 525 and pass between both ends of the sliding portion 520.
  • the first and second support members 523 and 525 may extend in a curved manner at both ends of the sliding part 520 to correspond to this, and the The first and second support members 523 and 525 may extend in a straight line between both ends.
  • the protrusion 510 is formed on the cover part 200 and the sliding part 520 is formed on the vent part 100, but the scope of the present invention is not limited thereto.
  • a protrusion 510 may be formed on the vent part 100, and a sliding part 520 may be formed on the cover part 200.
  • a first fastening portion 600 is formed on the vent portion 100 so that the cover portion 200 is slidably coupled to the vent portion 100, and the cover portion A second fastening part 700 that is slidably coupled to the first fastening part 600 may be formed at 200 .
  • the first fastening part 600 includes a receiving part 610 extending long in the direction in which the cover part 200 slides (forward-backward direction), and a length of the receiving part 610. It may include an extension protrusion 620 extending inside the receiving portion 610 along the direction.
  • the second fastening part 700 is inserted so as to be caught by the insertion part 710 inserted into the receiving part 610 of the first fastening part 600 and the extension protrusion 620 of the first fastening part 600. It may include a hook portion 720 formed on the portion 710. Therefore, while the hook portion 720 of the second fastening portion 700 is caught on the extension protrusion 620 of the first fastening portion 600, the insertion portion 710 of the second fastening portion 700 is connected to the first fastening portion 700.
  • the portion 600 may slide along the receiving portion 610, and at this time, the cover portion 200 may slide along the vent portion 100.
  • the range over which the insertion part 710 of the second fastening part 700 slides may be limited to the length of the receiving part 610 of the first fastening part 600, and the cover part 200 slides accordingly.
  • the range may be limited to between a first location and a second location.
  • the hook portion 720 of the second fastening portion 700 is caught on the extension protrusion 620 of the first fastening portion 600, and the first fastening portion 600 and the second fastening portion 700 are fastened to each other. Therefore, the cover part 200 can remain coupled without being arbitrarily separated from the vent part 100 during the sliding process.
  • FIG. 11 and 12 are cross-sectional views showing the operating process of a helmet equipped with a vent means according to an embodiment of the present invention. With reference to these, the operating process of a helmet equipped with a vent means according to this embodiment will be examined.
  • the blocking part 220 of the cover part 200 is located ahead of the first vent hole 113. can be placed in Therefore, when a bike, etc. moves forward, the external fluid (outside air) of the helmet body 10 flowing in from the front is blocked by the blocking portion 220 of the cover portion 200 and flows into the first vent hole 113. It may not work.
  • the cover part 200 when the cover part 200 is in the first position with respect to the vent part 100, the cover part 200 approaches the vent part 100 so that the space between the cover part 200 and the vent part 100 is relatively small. It is small.
  • the space between the cover part 200 and the vent part 100, which serves as an outlet for the air flow flowing out through the second vent hole 115, becomes smaller (or closed), so that the second vent The amount of fluid inside the helmet body 10 discharged through the hole 115 can be minimized.
  • the protrusion 510 of the fixing part 500 is fixed to one end of the sliding part 520 (the front end of the sliding part 520). It can be.
  • the cover part 200 and the vent part 100 are as close to each other as possible, and the cover part 200 is in close contact with the helmet body 10, creating a sense of unity.
  • the design can be implemented.
  • the blocking part 220 of the cover part 200 is located rearward than the first vent hole 113. can be placed in Accordingly, when a bike, etc. moves forward, the external fluid (outside air) of the helmet body 10 flowing in from the front can flow into the first vent hole 113 without being blocked by the blocking portion 220.
  • the cover part 200 moves away from the vent part 100 so that the space between the cover part 200 and the vent part 100 is relatively small.
  • the space between the cover part 200, which serves as an outlet for the air flow flowing out to the outside through the second vent hole 115, and the vent part 100 becomes larger, thereby opening the second vent hole 115.
  • the amount of fluid inside the helmet body 10 discharged through the helmet can be maximized.
  • the cover part 200 when the cover part 200 is in the second position, the external fluid (outside air) of the helmet body 10 flows in through the first vent hole 113, and the helmet body 10 flows through the second vent hole 115.
  • the fluid inside the main body 10 can be sufficiently discharged. In this way, since the fluid (outside air) outside the helmet body 10 flows in and the fluid inside the helmet body 10 is discharged, air circulates inside the helmet body 10, lowering the wearer's head temperature. It can be lowered to provide comfort to the wearer.
  • the protrusion 510 of the fixing part 500 is fixed to the other end of the sliding part 520 (the rear end of the sliding part 520). It can be.
  • first internal member 23 second internal member
  • vent part 110 vent hole
  • first vent hole 115 second vent hole
  • connection part 200 cover part
  • main body 220 blocking part
  • first guide portion 310 bottom portion
  • first support member 525 second support member
  • extension part 600 first fastening part
  • second fastening portion 710 insertion portion
  • the present invention provides a helmet equipped with a vent unit in which a vent hole is formed and a cover unit that slides with respect to the vent unit, and is equipped with a vent means that can control the amount of fluid flowing in through the vent hole and the amount of fluid flowing out through the vent hole. to provide.

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  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un casque équipé de moyens d'aération. Le casque équipé de moyens d'aération selon la présente invention comprend : une partie d'aération (100) disposée sur un corps de casque (10) et ayant un trou d'aération (110) formé pour permettre au fluide de s'écouler vers l'intérieur et l'extérieur du corps de casque (10) ; et une partie couvercle (200) qui coulisse entre une première position et une seconde position par rapport à la partie d'aération (100), est espacée plus loin de la partie d'aération (100) lorsque la partie couvercle est dans la seconde position que lorsque la partie couvercle est dans la première position, et permet à une quantité minimale de fluide de s'écouler à travers le trou d'aération (110) lorsque la partie couvercle est dans la première position et permet à une quantité maximale de fluide de s'écouler à travers le trou d'aération (110) lorsque la partie couvercle est dans la seconde position.
PCT/KR2023/001418 2022-04-01 2023-01-31 Casque équipé de moyens d'aération WO2023191286A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220041102A KR102633048B1 (ko) 2022-04-01 2022-04-01 벤트수단이 구비된 헬멧
KR10-2022-0041102 2022-04-01

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Publication Number Publication Date
WO2023191286A1 true WO2023191286A1 (fr) 2023-10-05

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PCT/KR2023/001418 WO2023191286A1 (fr) 2022-04-01 2023-01-31 Casque équipé de moyens d'aération

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WO (1) WO2023191286A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320622A2 (fr) * 1987-12-15 1989-06-21 NOLAN S.p.A. Casque pour motocycliste équipé de moyens de ventilation réglable manuellement
JPH1046423A (ja) * 1996-07-30 1998-02-17 Shoei Kako Kk ヘルメット
KR19990013598A (ko) * 1997-07-09 1999-02-25 마츠우모토타케오 헬멧
KR200202435Y1 (ko) * 1998-04-09 2000-11-15 홍완기 헬멧의공기통풍장치
KR20040083683A (ko) * 2003-03-24 2004-10-06 주식회사 에이치제이씨 헬멧용 에어벤트

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200168837Y1 (ko) 1999-07-30 2000-02-15 주식회사홍진크라운 헬멧용에어벤트
KR20120003190U (ko) * 2010-10-29 2012-05-09 구본엽 통풍이 가능한 헬멧
EP3277116B1 (fr) * 2015-03-30 2021-01-27 Dainese S.p.A. Casque de protection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320622A2 (fr) * 1987-12-15 1989-06-21 NOLAN S.p.A. Casque pour motocycliste équipé de moyens de ventilation réglable manuellement
JPH1046423A (ja) * 1996-07-30 1998-02-17 Shoei Kako Kk ヘルメット
KR19990013598A (ko) * 1997-07-09 1999-02-25 마츠우모토타케오 헬멧
KR200202435Y1 (ko) * 1998-04-09 2000-11-15 홍완기 헬멧의공기통풍장치
KR20040083683A (ko) * 2003-03-24 2004-10-06 주식회사 에이치제이씨 헬멧용 에어벤트

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KR20230142185A (ko) 2023-10-11
KR102633048B1 (ko) 2024-02-05

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