EP4520214A1 - Mécanisme de rotation pour casque - Google Patents

Mécanisme de rotation pour casque Download PDF

Info

Publication number
EP4520214A1
EP4520214A1 EP23799603.8A EP23799603A EP4520214A1 EP 4520214 A1 EP4520214 A1 EP 4520214A1 EP 23799603 A EP23799603 A EP 23799603A EP 4520214 A1 EP4520214 A1 EP 4520214A1
Authority
EP
European Patent Office
Prior art keywords
shield
chin guard
guide
helmet
rotation mechanism
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23799603.8A
Other languages
German (de)
English (en)
Other versions
EP4520214A4 (fr
Inventor
Sung Kwang Kim
Jung Hyun Jo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HJC Corp
Original Assignee
HJC Corp
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 HJC Corp filed Critical HJC Corp
Publication of EP4520214A1 publication Critical patent/EP4520214A1/fr
Publication of EP4520214A4 publication Critical patent/EP4520214A4/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/32—Collapsible helmets; Helmets made of separable parts ; Helmets with movable parts, e.g. adjustable
    • A42B3/326—Helmets with movable or separable chin or jaw guard
    • 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
    • A42B3/18—Face protection devices
    • A42B3/20—Face guards, e.g. for ice hockey
    • A42B3/205—Chin protectors
    • 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
    • A42B3/18—Face protection devices
    • A42B3/22—Visors
    • A42B3/221—Attaching visors to helmet shells, e.g. on motorcycle helmets
    • A42B3/222—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices

Definitions

  • the present disclosure relates to a rotation mechanism for a helmet.
  • the helmet has a front open portion to ensure the wearer's frontal field of view.
  • the helmet may include a shield that can selectively open and close the open portion to keep out wind, dust, etc. while driving.
  • the conventional helmet includes a chin guard to protect the wearer's chin as disclosed in the patent literature of the related literatures described below.
  • Patent Literature 1 KR10-2014-0001141 A
  • An aspect of the present disclosure relates to a rotation mechanism for a helmet in which while a shield in a rotatably coupled state to a chin guard is in an open position, when the chin guard is rotated to an open position, the shield is only rotated at a predetermined angle or less with respect to a helmet body with the guidance of a guide portion of the helmet body.
  • a rotation mechanism for a helmet including a helmet body, a chin guard which is rotatable with respect to the helmet body and a shield which is rotatable with respect to the helmet body, wherein the shield is rotatably coupled to the chin guard, and wherein while the shield is in an open position, when the chin guard is rotated to the open position, the shield is rotated at a predetermined angle or less with respect to the helmet body with guidance of a guide portion of the helmet body.
  • the shield includes a control portion which moves along the guide portion and is configured to control the rotation of the shield.
  • the guide portion is formed as a step at a ratchet portion of the helmet body, and the control portion contacts the step and moves along the step.
  • the guide portion includes a first guide portion extended upward as it goes rearward, a second guide portion extended downward as it goes rearward from an end of the first guide portion, and a third guide portion extended rearward from an end of the second guide portion, and while the shield is in the open position, when the chin guard is rotated to the open position, the control portion moves along the first guide portion, the second guide portion and the third guide portion in that order.
  • the guide portion includes a fourth guide portion extended downward, and the control portion moves along the fourth guide portion when the shield is rotated to a closed position.
  • the control portion passes through a guide hole formed in the chin guard, the guide hole has a recessed groove portion at each of two ends, and a toothed portion between the two ends of the guide hole, and when the control portion is disposed at the two ends of the guide hole, the control portion is coupled to the groove portion by a force applied to the control portion in a direction, and when the control portion is disposed between the two ends of the guide hole, the control portion contacts the toothed portion.
  • the chin guard is rotatably coupled to a ratchet portion of the helmet body, two chin guard guide portions are formed in the ratchet portion, and at least one of the two chin guard guide portions is extended rearward, two connection portions that move along the two chin guard guide portions are formed in the chin guard, and when the chin guard is rotated, the two connection portions move along the two chin guard guide portions.
  • the rotation mechanism for the helmet while the shield is in the open position, when the chin guard is rotated to the open position, the chin guard is coupled to the shield, and when the chin guard is rotated to a closed position, the shield is rotated to the closed position.
  • the first fastening portion further includes an elastic portion to provide an elastic force to rotate the first protruding portion toward the second fastening portion.
  • the helmet body 10 plays a role in protecting a wearer's head.
  • the helmet body 10 may be made of a shock absorbing material.
  • the helmet body 10 may include an outer shell of hard synthetic resin and having high strength, and an absorber disposed in the outer shell, made of an expanded polystyrene (EPS) foam and having proper strength and elasticity.
  • EPS expanded polystyrene
  • a pad may be present inside the absorber to improve a snug fit.
  • the shield 30 plays a role in opening and closing an open portion 13 formed at the front side of the helmet body 10.
  • two ends of the shield 30 are rotatably coupled to an auxiliary ratchet portion 50 on two sides of the chin guard 20, and the shield 30 rotates with respect to the helmet body 10 and is rotatable from the closed position in which the open portion 13 is closed to the open position in which the open portion 13 is open.
  • the closed position may refer to a position when the shield 30 is disposed at the open portion 13 (see FIG. 2 , the closed shield 30), and the open position may refer to a position when the shield 30 is disposed above the open portion 13 (see FIG. 4 , the open shield 30).
  • At least one guide portion 43 of the two chin guard guide portions 41, 43 is extended rearward, and as the chin guard 20 rotates, at least one connection portion 23 of the two connection portions 21, 23 moves rearward along at least one chin guard guide portion 43 of the two chin guard guide portions 41, 43. Accordingly, the chin guard 20 does not rotate around an axis with respect to the helmet body 10, and as the chin guard 20 rotates, a relative position to the helmet body 10 may be moved (for example, the chin guard 20 may be moved rearward compared to when it rotates around an axis).
  • the guide portion 100 is formed at the ratchet portion 40 of the helmet body 10, and the shield 30 may include a control portion 200 configured to control the rotation of the shield 30 while it moves along the guide portion 100 when the chin guard 20 is rotated.
  • the guide portion 100 may be formed as a step at the ratchet portion 40 of the helmet body 10.
  • the step may be defined by the sidewall of a recess portion 45 (see FIG. 1 ) recessed in the ratchet portion 40.
  • the control portion 200 of the shield 30 may contact the step, and when the chin guard 20 is rotated, may move along the step (the guide portion 100).
  • the guide portion 100 may include a first guide portion 110, a second guide portion 120 and a third guide portion 130.
  • the first guide portion 110 may be extended upward as it goes rearward
  • the second guide portion 120 may be extended downward as it goes rearward from the end of the first guide portion 110.
  • the first guide portion 110 may be obliquely extended upward as it goes rearward
  • the second guide portion 120 may be obliquely extended downward as it goes rearward.
  • the third guide portion 130 may be extended rearward from the end of the second guide portion 120.
  • the third guide portion 130 may be extended in an arc shape protruded upward.
  • the guide portion 100 may include a fourth guide portion 140.
  • the fourth guide portion 140 may be disposed at a lower location than the first, second and third guide portions 110, 120, 130, and be extended downward.
  • the fourth guide portion 140 may be extended in an arc shape protruded frontward.
  • the control portion 200 of the shield 30 may move along the guide hole 53 (formed at the auxiliary ratchet portion 50 of the chin guard 20) extended in an arc shape.
  • the control portion 200 of the shield 30 may be disposed at the lower end of the guide hole 53, and when the shield 30 is in the open position (see FIG. 4 ), the control portion 200 of the shield 30 may be disposed at the upper end of the guide hole 53.
  • the shield 30 while the shield 30 is in the open position, when the chin guard 20 is rotated from the closed position to the open position, the chin guard 20 and the shield 30 may be rotated together, and the control portion 200 of the shield 30 may be disposed in front of the first guide portion 110, and subsequently the control portion 200 of the shield 30 may come into contact with the first guide portion 110 and be guided to move from the front end to the rear end of the first guide portion 110. Because the first guide portion 110 is extended upward as it goes rearward, the shield 30 including the control portion 200 guided by the first guide portion 110 may move upward as it goes rearward with respect to the helmet body 10.
  • the distance between the shield 30 and the chin guard 20 may be reduced. Additionally, the control portion 200 of the shield 30 may move a predetermined distance from the upper end of the guide hole 53 of the auxiliary ratchet portion 50 toward the lower end.
  • the control portion 200 of the shield 30 may come into contact with the second guide portion 120 and be guided to move from the front end to the rear end of the second guide portion 120. Because the second guide portion 120 is extended downward as it goes rearward, the shield 30 including the control portion 200 guided by the second guide portion 120 may move downward as it goes rearward with respect to the helmet body 10. In this instance, because the amount of rotation of the chin guard 20 is larger than the amount of rotation of the shield 30, the distance between the shield 30 and the chin guard 20 may be further reduced. Additionally, the control portion 200 of the shield 30 may move a predetermined distance toward the lower end of the guide hole 53 of the auxiliary ratchet portion 50 again.
  • the control portion 200 of the shield 30 may come into contact with the third guide portion 130 and be guided to move from the front end to the rear end of the third guide portion 130. Because the third guide portion 130 is extended rearward, the shield 30 including the control portion 200 guided by the third guide portion 130 may move rearward with respect to the helmet body 10. In this instance, because the amount of rotation of the chin guard 20 is larger than the amount of rotation of the shield 30, the chin guard 20 may be coupled to the shield 30. Additionally, the control portion 200 of the shield 30 may be disposed at the lower end of the guide hole 53 of the auxiliary ratchet portion 50.
  • the shield 30 may be only rotated at the predetermined angle or less with respect to the helmet body 10 without excessive rotation with the guidance of the guide portion 100 for the control portion 200 of the shield 30.
  • the chin guard 20 when it rotates, the chin guard 20 does not rotate around an axis with respect to the helmet body 10, so its relative position to the helmet body 10 is moved, and as shown in FIGS. 5 to 8 , the shield 30 coupled to the chin guard 20 may move with respect to the helmet body 10 in response to the movement of the chin guard 20 with the guidance of the guide portion 100 of the ratchet portion 40.
  • the shield 30 coupled to the chin guard 20 also rotates from the open position to the closed position, and the control portion 200 of the shield 30 may be spaced apart from the third guide portion 130 (see FIG. 9 ), then come into contact with the fourth guide portion 140, and be guided to move from the upper end to the lower end of the fourth guide portion 140 (see FIGS. 10 to 12 ). Because the fourth guide portion 140 is extended downward, the shield 30 including the control portion 200 guided by the fourth guide portion 140 may move downward with respect to the helmet body 10. In this instance, because the shield 30 is coupled to the chin guard 20 and they rotate together, the control portion 200 of the shield 30 maintains its location at the lower end of the guide hole 53 of the auxiliary ratchet portion 50.
  • the shield 30 may include a rotation axis 31 and a second guide 33.
  • the auxiliary ratchet portion 50 of the chin guard 20 may include a movement portion 55 to which elasticity is applied in the rearward direction.
  • the rotation axis 31 may be protruded from the inner side of the shield 30, be rotatably coupled to the auxiliary ratchet portion 50, and be subjected to pressure in the rearward direction by the movement portion 55.
  • the second guide 33 may be protruded from the inner side of the shield 30, and be coupled to an arc-shaped first guide 57 formed in the movement portion 55 of the auxiliary ratchet portion 50 so that it moves along the first guide 57.
  • the force is applied to the shield 30 in the rearward direction through the rotation axis 31 subjected to pressure by the movement portion 55, and as a result, the force is also applied to the control portion 200 of the shield 30 in the rearward direction. In this instance, as shown in FIGS.
  • the guide hole 53 formed in the auxiliary ratchet portion 50 may have groove portions 53a, 53b recessed rearward at the two ends (the upper end and the lower end), respectively, and a toothed portion 53c between the two ends (upper end and lower end) of the guide hole 53.
  • the control portion 200 may be coupled to the groove portions 53a, 53b to prevent the shield 30 from arbitrarily rotating.
  • control portion 200 of the shield 30 may come into contact with the toothed portion 53c and provide clicking in response to the rotation of the shield 30.
  • a first fastening portion 300 and a second fastening portion 400 may be provided for the coupling of the chin guard 20 to the shield 30, as shown in FIG. 16 .
  • the first fastening portion 300 may be formed at the central upper part of the chin guard 20
  • the second fastening portion 400 that is fastened with the first fastening portion 300 may be formed at the central lower part of the shield 30.
  • the first fastening portion 300 may include a first protruding portion 310 protruded toward the second fastening portion 400, a rotation portion 320 to rotatably couple the first protruding portion 310 to the chin guard 20, and an elastic portion 330 to provide an elastic force to rotate the first protruding portion 310 toward the second fastening portion 400.
  • one end of the elastic portion 330 contacts the first protruding portion 310, and to support the other end of the elastic portion 330, a support portion 25 that supports the elastic portion 330 may be coupled to the chin guard 20.
  • the second fastening portion 400 may include a second protruding portion 410 protruded toward the first fastening portion 300.
  • the second protruding portion 410 of the second fastening portion 400 may come into contact with the first protruding portion 310 of the first fastening portion 300 (see FIG. 16(B) ), then the elastic portion 330 may be compressed, and the first protruding portion 310 may rotate around the rotation portion 320 in the inward direction of the chin guard 20. Subsequently, when the second protruding portion 410 of the second fastening portion 400 is disposed at the lower end of the first protruding portion 310 of the first fastening portion 300 (see FIG.
  • the first protruding portion 310 may rotate toward the shield 30 by the elastic force of the compressed elastic portion 330, and the second protruding portion 410 and the first protruding portion 310 may be coupled to each other.
  • the chin guard 20 may be coupled to the shield 30.
  • the second protruding portion 410 may push the first protruding portion 310 in the inward direction of the chin guard 20.
  • the first protruding portion 310 rotates around the rotation portion 320 in the inward direction of the chin guard 20
  • the first protruding portion 310 may be separated from the second protruding portion 410.
  • the shield 30 may be naturally separated from the chin guard 20.
  • first fastening portion 300 formed in the chin guard 20 and the second fastening portion 400 formed in the shield 30 the scope of protection of the present disclosure is not necessarily limited thereto, and the first fastening portion 300 may be formed in the shield 30 and the second fastening portion 400 may be formed in the chin guard 20.
  • the present disclosure provides the rotation mechanism for the helmet in which while the shield in the rotatably coupled state to the chin guard is in the open position, when the chin guard is rotated to the open position, the shield may be only rotated at the predetermined angle or less with respect to the helmet body with the guidance of the guide portion of the helmet body.

Landscapes

  • Helmets And Other Head Coverings (AREA)
EP23799603.8A 2022-05-02 2023-04-24 Mécanisme de rotation pour casque Pending EP4520214A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020220054334A KR102646629B1 (ko) 2022-05-02 2022-05-02 헬멧용 회동 메커니즘
PCT/KR2023/005522 WO2023214720A1 (fr) 2022-05-02 2023-04-24 Mécanisme de rotation pour casque

Publications (2)

Publication Number Publication Date
EP4520214A1 true EP4520214A1 (fr) 2025-03-12
EP4520214A4 EP4520214A4 (fr) 2026-04-15

Family

ID=88646640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23799603.8A Pending EP4520214A4 (fr) 2022-05-02 2023-04-24 Mécanisme de rotation pour casque

Country Status (3)

Country Link
EP (1) EP4520214A4 (fr)
KR (1) KR102646629B1 (fr)
WO (1) WO2023214720A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20260008458A (ko) * 2024-07-09 2026-01-16 (주) 에이치제이씨 헬멧용 회동 메커니즘

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886521B1 (fr) * 2005-06-03 2007-09-07 Cbm Distrib Entpr Unipersonnel Casque de protection a visiere mobile
TW200836655A (en) * 2007-03-05 2008-09-16 Long Huei Helmet Co Compounded safety helmet
US20110302701A1 (en) * 2010-06-09 2011-12-15 Kin Yung Lung Industrial Co., Ltd. Position controlling mechanism for chin guard and visor plate of helmet
JP5814726B2 (ja) * 2011-10-03 2015-11-17 株式会社Ｓｈｏｅｉ ヘルメット
JP5358722B1 (ja) 2012-06-26 2013-12-04 株式会社アライヘルメット ヘルメット
FR3016774B1 (fr) * 2014-01-24 2016-05-13 Astone Helmets Partners Casque de protection avec mentonniere mobile
CN109875177B (zh) * 2019-03-04 2024-02-13 江门市鹏程头盔有限公司 一种齿轮约束型可变护颚结构头盔
KR102365056B1 (ko) * 2020-06-12 2022-02-18 주식회사 기도스포츠 헬멧용 프론트 커버, 헬멧용 쉘 및 이들을 포함하는 헬멧
CN112568539B (zh) * 2020-12-11 2023-07-25 江阴市达菲玛汽配科技有限公司 一种下巴护罩与面罩关联转动的头盔

Also Published As

Publication number Publication date
EP4520214A4 (fr) 2026-04-15
WO2023214720A1 (fr) 2023-11-09
KR20230154649A (ko) 2023-11-09
KR102646629B1 (ko) 2024-03-13

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