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WO2025146609A1 - Casque de protection - Google Patents

Casque de protection Download PDF

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Publication number
WO2025146609A1
WO2025146609A1 PCT/IB2024/063219 IB2024063219W WO2025146609A1 WO 2025146609 A1 WO2025146609 A1 WO 2025146609A1 IB 2024063219 W IB2024063219 W IB 2024063219W WO 2025146609 A1 WO2025146609 A1 WO 2025146609A1
Authority
WO
WIPO (PCT)
Prior art keywords
displacement
seat
displacement member
along
visor
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
PCT/IB2024/063219
Other languages
English (en)
Inventor
Gianluca GALLIANO
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.)
Momo Design SRL
Original Assignee
Momo Design SRL
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 Momo Design SRL filed Critical Momo Design SRL
Publication of WO2025146609A1 publication Critical patent/WO2025146609A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A42B3/18—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
    • A42B3/223—Attaching visors to helmet shells, e.g. on motorcycle helmets in an articulated manner, e.g. hinge devices with means for locking the visor in a fully open, intermediate or closed position

Definitions

  • This invention generally refers to a protective helmet.
  • this invention concerns a helmet for the protection of a user's head and also concerns a method for opening and closing the visor of a helmet.
  • the visor is moved by the user to be raised or lowered.
  • the user is required to raise the visor to the raised position, or vice versa, to lower it to the lowered position. That is, the helmet's visor must be moved along its entire displacement trajectory between the lowered and the raised position, or vice versa.
  • the visor is connected to the cap by means of a sliding element that can slide within a respective guide.
  • the visor can remain locked between the raised and lowered position if the user does not move it to the desired position.
  • the movement of the visor between the lowered and the raised position, or vice versa requires prolonged displacement of the sliding element within the cap guide, which can cause slowdowns and prevent effective use of the helmet by the user.
  • a helmet for the protection of a user's head comprising a cap, defining a bottom opening and a front opening, and a visor configured to assume a lowered position, wherein the visor at least partially covers the front opening, a raised position at least partially above the front opening, and an intermediate position between the lowered position and the raised position.
  • the helmet also comprises a handling assembly comprising at least one first displacement member and a second displacement member, where the first displacement member is configured for a displacement along a first displacement seat of the cap, and the second displacement member is configured for a displacement along a second displacement seat of the cap.
  • the helmet includes a connection member, for example a rigid connecting member, for example a single arm, designed to connect the first displacement member and the second displacement member.
  • a displacement of the second displacement member along the second displacement seat corresponds to a displacement of the first displacement member along the first displacement seat and a displacement of the visor along a trajectory, or part of a trajectory, from one or the other of either said lowered position and said raised position to said intermediate position and/or from said intermediate position to one or the other of either said lowered position to said raised position, and vice versa.
  • the connection therefore reduces the degree of freedom of the first displacement member.
  • At least the first displacement member is, or comprises, a bearing designed to cooperate with the first displacement seat and/or the second displacement member is, or comprises, a respective bearing designed to cooperate with the second displacement seat. That is, at least one of the two displacement members provides for the adoption of at least one bearing, and this bearing can be displaced with respect to the respective displacement seat. A rotoidal coupling between the bearing and the respective displacement seat is achieved, which facilitates movement and reduces the risk of jamming the displacement mechanism.
  • the displacement seat is preferably a fixed seat, formed in support flanges that are in turn attached to a helmet cap.
  • the second displacement member when the first displacement member moves along the first displacement seat, the second displacement member also moves along the second displacement seat, and the visor also moves at least a partial distance between the lowered and the raised position or vice versa.
  • the helmet comprises a connection member, preferably a rigid connecting member, connecting a first displacement member and a second displacement member and the visor, wherein at least one of either the first displacement member or the second displacement member is, or includes, a bearing.
  • the bearing is preferably a radial bearing designed to bear a load in a direction radial to the bearing when it moves relative to the displacement seat.
  • Said bearing comprises the external washer or external annular body, an internal washer or internal annular body, wherein the external washer is designed to interact with walls defined in the corresponding displacement seat.
  • a rolling bearing including multiple rolling elements. Even more preferably, the rolling elements are multiple balls and, therefore, it is a ball bearing.
  • the internal and external washers comprise respective tracks for the sliding of the rolling elements.
  • bearings such as sliding bearings, magnetic bearings, or other known bearings
  • sliding bushings with a dry running, self-lubricating polytetrafluoroethylene (PTFE) surface can be provided as bearings.
  • PTFE polytetrafluoroethylene
  • the first displacement member is, preferably, equipped with a bearing that moves relative to the first displacement seat.
  • the second displacement member is a pin component that slides directly into the sliding seat.
  • Said second displacement member is preferably part of a first connecting rod pivoted or joined by means of a rotoidal connection to the cap. In this way, the connection member is connected indirectly to the cap by means of the second displacement member.
  • both the first displacement member includes at least one sliding bearing in the first displacement seat and the second displacement member includes at least one sliding bearing in the second displacement seat to facilitate the respective movements.
  • a method of opening and/or closing the visor of a helmet is provided, the visor being configured to assume a lowered position, a raised position, and an intermediate position between said lowered position and said raised position, wherein the helmet comprises a cap, and a handling assembly comprising a first displacement member and a second displacement member connected by a rigid connecting member attached to the visor.
  • the method involves the following steps:
  • the visor of the protective helmet can be opened and/or closed by means of a series of displacements of the first displacement member and the second displacement member, which are connected to each other and to the visor, along their respective displacement seats.
  • the visor can move between the lowered position and the intermediate position, or vice versa, and between the intermediate position and the raised position, or vice versa, depending on the displacement made by the first displacement member and the second displacement member in the respective displacement seats.
  • At least one of either the first displacement member or the second displacement member is, or includes, at least one bearing and the first and/or second displacement seat, respectively, are sliding guides to facilitate the displacements of the respective bearings.
  • the second displacement member is preferably connected to the cap by means of a spring member configured to assume a rest condition and a loaded condition, in which the spring is loaded.
  • the spring member is loaded, that is, it switches from the rest to the loaded condition.
  • the spring member is unloaded, that is, it switches from the loaded to the rest condition. That is to say, preferably the spring member can facilitate the second and fourth displacement of the second displacement member, and thus the transition of the visor from the intermediate position to the raised position, or from the intermediate position to the lowered position, by means of the elastic return of the spring.
  • FIG. 1 shows a front view of a helmet according to one embodiment of this invention, in which the visor is in the raised position;
  • FIG. 3A shows a view of the detail III in Figure 3
  • - Figure 4 shows an axonometric view from a first side of the visor with the handling assembly in Figure 3 partially assembled
  • a protective helmet With reference to the attached figures, some embodiments of a protective helmet are indicated, as a whole, with the reference number 100.
  • the helmet 100 comprises a cap 10, defining a bottom opening and a front opening, and a visor 20 configured to assume a lowered position, wherein it at least partially covers said front opening, and a raised position, and an intermediate position between said lowered position and said raised position. In the raised position, the visor 20 is placed at least partially beyond and above the front opening.
  • the cap 10 is fitted with an energy-absorbing layer generally designated with reference number 13, facing the user's head.
  • the components that are referred to below as being attached or connected to the cap 10 are attached and connected in particular to said energy-absorbing layer 13.
  • the helmet 100 is intended to be worn by a user. It is to be understood within the scope of this invention that any spatial reference such as frontal, raised, lowered, above, below, etc. is made by way of non-limiting example with reference to the condition in which the helmet is worn.
  • the helmet 100 also includes an articulated handling assembly 11, attached on one side to the cap 10 and on the other side to the visor 20.
  • the handling assembly 11 comprises a first displacement member 30 and a second displacement member 40.
  • the first displacement member 30 is configured for a displacement along a first displacement seat 31 , attached and joined to the cap 10 and the second displacement member 40 is configured for a displacement along a second displacement seat 41 attached and joined to the cap 10.
  • the helmet 100 can include two identical, symmetrical displacement assemblies on both sides of the helmet, relative to a sagittal plane. Below, only one handling assembly and one operation method is described, with the understanding that two assemblies can be provided, one on a right-hand side and one on a left-hand side of the helmet.
  • the first displacement seat 31 and the second displacement seat 41 may be formed along a portion of the cap 10, preferably towards the inside of the helmet, or they may be formed on an element joined to the cap, preferably along the inner side of the cap 10.
  • the “inner side of the cap” 10 refers to the side facing the inner cavity of the helmet 100 designed to accommodate the user’s head.
  • the first displacement seat 31 and the second displacement seat 41 are formed in plate components 310 and 410 attached by means of screws to the cap 10.
  • the first displacement member 30 and the second displacement member 40 are structures capable of sliding in their respective displacement seat 40, 41.
  • Each handling assembly 11 further comprises a connection member 50, preferably a rigid connecting member 50, for connecting the first displacement member 30 and the second displacement member 40 together, wherein, for example, the connection member is attached to the visor 20 by respective screws 51, 52.
  • a connection member 50 preferably a rigid connecting member 50, for connecting the first displacement member 30 and the second displacement member 40 together, wherein, for example, the connection member is attached to the visor 20 by respective screws 51, 52.
  • the rigid connecting member 50 is an arm connecting the first displacement member 30 and the second displacement member 40, preferably in a rotoidal manner, that is, in such a manner that preferably the rigid connecting member 50, the first displacement member 30, and the second displacement member 40 are integral in translation and free to rotate on the same plane.
  • the rigid connecting member 50 is attached to the visor 20.
  • the rigid connecting member 50, the first displacement member 30, and the second displacement member 40 and the visor 20 are integral in their movements, that is, the movement or displacement of one of them entails the movement or displacement of the others, defining a kinematic chain with only one degree of freedom.
  • a displacement of the second displacement member 40 along the second displacement seat 41 corresponds to a displacement of the first displacement member 30 along the first displacement seat 31 and to a displacement of the visor 20 along a trajectory, or part of a trajectory, from the lowered position to the raised position or vice versa. That is, such movements or displacements of the first displacement member 30, the second displacement member 40, and the visor 20 are constrained movements or displacements, that is, when one of them is moved or displaced, the others are also moved or displaced.
  • the connections between the first displacement member 30, the second displacement member 40, and the visor 20 limit the degrees of freedom of the movements or displacements connected with them, i.e. they are constrained by each other's movements. That is to say, the displacement members move in their respective displacement seats and the visor 20 follows a predefined trajectory, and the movement of each of them entails the movement of the others along their respective guides and/or trajectories.
  • the first displacement member 30 is, or at least includes, a bearing 36, 136 that can slide, for example is accommodated sliding, in the displacement seat 31 and/or the second displacement member 40 is, or at least includes, a bearing that can slide in the second displacement seat 41. That is, at least one of either the first displacement member 30 and the second displacement member 40 is, or comprises, a bearing 36, 136 configured to slide along the respective displacement seat where it is accommodated ( Figures 3-5, and Figure 9).
  • the seat is therefore a rolling seat for an external washer 36d of the bearing around its own axis or shaft, as will be explained below.
  • Such a rotoidal coupling between the external washer 36d of the bearing and the displacement seat enables and facilitates handling by reducing the risk of blocking and jams.
  • the first displacement member 30 comprises the bearing 36.
  • the first displacement member 30 preferably comprises a first pin body 35 and the bearing 36 fixedly mounted on the pin body 35.
  • the bearing 36 is preferably a radial load bearing.
  • the bearing 36 is therefore designed to carry a load from the walls of the displacement seat 30, in a direction orthogonal to the pin body 35.
  • it is a so-called rolling bearing, preferably a ball bearing, that is, it is provided with balls 36a, a ring-shaped retaining cage 36b to hold the balls 36a in position, an internal ring-shaped body 36c, or internal washer, provided with a respective track for the balls, an external ring-shaped body 36d, or external washer, provided with a respective track for the balls 36a and two lateral protection elements 36e and 36f, or shield annular bodies, for dust protection.
  • the bearing 36 has, as mentioned, a rotation axis coinciding with the axis of the pin body 35. The latter acts as the bearing shaft.
  • the internal ringshaped body 36c is the fixed part of the bearing 36 and the external ring-shaped body 36d is the moving part of the bearing 36.
  • the displacement seat 30 within which the external washer of the bearing 36 slides is preferably increased to allow the bearing 36 to slide, for example between 0.1 and 0.3mm, preferably by about 0.2mm.
  • the inside diameter of the internal washer 36c of the bearing 36 is preferably between 10mm and 5mm, preferably 7mm, the external diameter of the external washer 36d of the bearing is between 10mm and 16mm, preferably 13mm.
  • the bearings 36 have diameter tolerances of type H7 (approximately 0.02mm).
  • the width of the displacement seat 31 is between approximately 10mm and 16mm, preferably approximately 13.15mm.
  • the second displacement member 40 includes a pin component that slides along the respective sliding seat. Said second displacement member is preferably part of a first connecting rod 60 pivoted or attached by means of a rotoidal connection to the cap 10.
  • the second displacement member 40 preferably comprises a second pin body 45.
  • the second pin body 45 is mounted at one free end of the connecting rod 60 and slides along the second displacement seat 41.
  • the second displacement member 40 also comprises, as mentioned, a bearing 136, preferably a bearing with the same characteristics as described above for the bearing 36.
  • the rigid connecting member 50 is a second connecting rod connected with clearance to the first pin body 35 of the first displacement member 30 and connected with clearance to the second pin body 45 of the second displacement member 40 in such a way as to command or control the displacement of the first displacement member 30 along the first displacement seat 31.
  • the rigid connecting member 50 preferably connects the first displacement member 30, the second displacement member 40, and the visor 20 to each other.
  • both the first displacement member 30 and the second displacement member 40 comprise a respective first pin body 35 and second pin body 45, to which the rigid connecting member 50 is connected in order to allow a rotoidal coupling between the first displacement member 30 and the second displacement member 40, which can guide or control a displacement of the first displacement member 30 along the first displacement seat 31.
  • the displacement of the second displacement member 40 is preferably a first displacement of the second displacement member 40 along the second displacement seat 41 and the displacement of the first displacement member 30 along the first displacement seat 31 is a first displacement of the first displacement member 30, and a transfer of the visor 20 from the lowered position to the intermediate position corresponds to the first displacement of the second displacement member 40 and to the first displacement of the first displacement member 30.
  • a second displacement of the first displacement member 30 along the first displacement seat 31 and a transfer of the visor 20 from the intermediate position to the raised position preferably corresponds to a second displacement of the second displacement member 40 along the second displacement seat 41.
  • the first displacement of the second displacement member 40 is preferably a displacement in a first displacement direction from one start-of-stroke position in the second displacement seat 41 to an end-of-stroke position in the second displacement seat 41.
  • the second displacement of the second displacement member 40 is preferably a displacement in a displacement direction opposite to the first displacement direction from the end-of-stroke position in the second displacement seat 41 to the start-of-stroke position in the second displacement 41.
  • the third displacement of the second displacement member 40 is preferably a displacement in the first displacement direction from the start-of-stroke position in the second displacement seat 41 to the end-of-stroke position in the second displacement seat 41.
  • the fourth displacement of the second displacement member 40 is preferably a displacement in a displacement direction opposite to the first displacement direction from the end-of-stroke position in the second displacement seat 41 to the start-of-stroke position in the second displacement seat 41.
  • the first displacement seat 31 is additionally equipped with a damping component 38, which has elastic behaviour.
  • the damping component 38 is a frame that can be inserted, in a fixed way, into the displacement seat 31 and has two arcs 38a, 38b with the convexity facing the centre of the displacement seat 31.
  • the two arcs 38a, 38b are intended to be momentarily deformed when the bearing 36 passes through them.
  • the second displacement member 40 is preferably attached to the cap 10 by means of a spring member 70, for example a helical spring or a torsion spring, configured to assume a rest condition and a loaded condition, wherein: when the second displacement member 40 carries out the first displacement, the spring member 70 passes from the rest condition to the loaded condition, subsequently, the spring member 70 is discharged from the loaded condition to the rest condition, facilitating the second displacement of the second displacement member 40, when the second displacement member 40 carries out the third displacement, the spring member 70 passes from the rest condition to the loaded condition, subsequently, the spring member 70 is discharged from the loaded condition to the rest condition, facilitating the fourth displacement of the second displacement member 40.
  • the spring member 70 can facilitate the movement of the visor 20 from the intermediate position to the raised position or from the intermediate position to the lowered position, by means of the elastic or discharged return from the loaded condition to the rest condition.
  • the helmet can be used to fine-tune said method as described with reference to Figures 1-9.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

La présente invention concerne un casque (100) pour la protection de la tête d'un utilisateur comprenant une coque (10), délimitant une ouverture inférieure et une ouverture avant, et une visière (20) conçue pour adopter une position abaissée, dans laquelle elle recouvre au moins partiellement l'ouverture avant, et une position relevée, ainsi qu'une position intermédiaire entre la position abaissée et la position relevée. Le casque (100) comprend également un ensemble de manipulation comprenant un premier élément de déplacement (30) et un second élément de déplacement (40), le premier élément de déplacement (30) étant conçu pour un déplacement le long d'un premier site de déplacement (31) de la coque (10), et le second élément de déplacement (40) étant conçu pour un déplacement le long d'un second site de déplacement (41) de la coque (10). Le casque comprend également un élément de liaison (50) conçu pour solidariser le premier élément de déplacement (30) et le second élément de déplacement (40) et, de plus, l'élément de solidarisation est fixé à la visière (20). En particulier, un déplacement du second élément de déplacement (40) le long du second site de déplacement (41) correspond à un déplacement du premier élément de déplacement (30) le long du premier site de déplacement (31) et à un déplacement de la visière (20) le long d'une trajectoire, ou d'une partie d'une trajectoire, de la position abaissée à la position relevée ou inversement. De plus, le premier élément de déplacement (30) est, ou comprend au moins, un palier (36) et le premier site de déplacement (31) est conçu pour permettre un déplacement dudit premier élément de déplacement (30) et/ou du second élément de déplacement (40), ou comprend au moins un palier (136) et le second site de déplacement (41) est conçu pour permettre un déplacement dudit second élément de déplacement (40).
PCT/IB2024/063219 2024-01-02 2024-12-27 Casque de protection Pending WO2025146609A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102024000000012 2024-01-02
IT202400000012 2024-05-29

Publications (1)

Publication Number Publication Date
WO2025146609A1 true WO2025146609A1 (fr) 2025-07-10

Family

ID=90545209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2024/063219 Pending WO2025146609A1 (fr) 2024-01-02 2024-12-27 Casque de protection

Country Status (2)

Country Link
GB (4) GB202503462D0 (fr)
WO (1) WO2025146609A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060015979A1 (en) * 2004-07-23 2006-01-26 Brad Sutter Removable optical assembly for a helmet
CA2767266A1 (fr) * 2012-02-03 2013-08-03 Danny Higgins Casque dote d'un mecanisme de guidage pour une visiere compatible
EP3195745A1 (fr) * 2016-01-22 2017-07-26 Salomon S.A.S. Visière et casque muni d'une telle visière
EP3970545A1 (fr) * 2020-09-16 2022-03-23 ALPINA SPORTS GmbH Dispositif, en particulier mécanisme de visière, permettant de déplacer une visière sur un casque et système de protection de la tête

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060015979A1 (en) * 2004-07-23 2006-01-26 Brad Sutter Removable optical assembly for a helmet
CA2767266A1 (fr) * 2012-02-03 2013-08-03 Danny Higgins Casque dote d'un mecanisme de guidage pour une visiere compatible
EP3195745A1 (fr) * 2016-01-22 2017-07-26 Salomon S.A.S. Visière et casque muni d'une telle visière
EP3970545A1 (fr) * 2020-09-16 2022-03-23 ALPINA SPORTS GmbH Dispositif, en particulier mécanisme de visière, permettant de déplacer une visière sur un casque et système de protection de la tête

Also Published As

Publication number Publication date
GB202503460D0 (en) 2025-04-23
GB202503462D0 (en) 2025-04-23
GB202504003D0 (en) 2025-04-30
GB202504004D0 (en) 2025-04-30

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