EP2432341A1 - Movement device for a helmet for moving a first element o the helmet in relation to a second element of the helmet - Google Patents

Movement device for a helmet for moving a first element o the helmet in relation to a second element of the helmet

Info

Publication number
EP2432341A1
EP2432341A1 EP10731571A EP10731571A EP2432341A1 EP 2432341 A1 EP2432341 A1 EP 2432341A1 EP 10731571 A EP10731571 A EP 10731571A EP 10731571 A EP10731571 A EP 10731571A EP 2432341 A1 EP2432341 A1 EP 2432341A1
Authority
EP
European Patent Office
Prior art keywords
interaction
movable body
counter
helmet
base body
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.)
Granted
Application number
EP10731571A
Other languages
German (de)
French (fr)
Other versions
EP2432341B1 (en
Inventor
Carlo Filippo Ratti
Emiliano Taccioli
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.)
AGV SpA
Original Assignee
AGV SpA
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 AGV SpA filed Critical AGV SpA
Publication of EP2432341A1 publication Critical patent/EP2432341A1/en
Application granted granted Critical
Publication of EP2432341B1 publication Critical patent/EP2432341B1/en
Active 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

Definitions

  • the present disclosure relates in general to a movement device for a helmet.
  • the present disclosure relates to a movement device for a helmet for moving a first element of the helmet in relation to a second element of the helmet.
  • the movement device is able to move the visor in relation to the shell of the helmet between a first operating position, or active position in front of the user's face, and a second operating position, or inactive position, i.e. raised opposite the user's forehead.
  • the movement device is able to move the chin bar or top guard in relation to the shell or is able to move similar elements or parts of the helmet.
  • the abovementioned movement device is therefore applicable to all protective helmets with parts which perform a movement, be it a translatory, rotational or rotary/translatory movement.
  • the movement device for a helmet, in particular a motorcyclist's helmet, including a protective shell and a visor, wherein said movement device allows controlled adjustment of the movement of the visor (forming said first element) in relation to the helmet shell (forming said second element).
  • Adjustment or control of the movement allows the user to determine exactly the position of the visor when the helmet is worn, without necessarily having to look at the visor, for example also when the user is riding a motorcycle.
  • adjustment of the movement allows a user to "sense", for example by means of a click action, when the visor is in a closed or open position, namely understand whether it is fully closed or fully open, as well as any intermediate positions.
  • a movement device which includes a movable body, fixedly associated with the first element of the helmet, and a base body or fixed body, fixedly associated with the second element.
  • an interaction element is associated with the movable body and an interaction counter- element is associated with the base body.
  • the interaction element and the interaction counter-element interact with each other so as to hold, in at least one given position, the movable body (and therefore the first element of the helmet) in relation to the base body (and therefore in relation to the second element of the helmet).
  • interaction element and “interaction counter-element” are understood as meaning elements between which a stable interaction or contact occurs, this being, for example, of a pressing nature, or consisting of an actual rubbing or frictional contact, such that between the two elements there is at least partially a mutual engagement which results in - at least temporary - retention of the movable body in relation to the base body.
  • This retaining action may result in stoppage of the movable body in a start-of-travel or end-of-travel position of the movable body in relation to the base body, or also in an intermediate position between the two start-of-travel and end-of-travel positions.
  • One drawback consists, for example, in the fact that there is a limited versatility during use, in particular in the helmet sector, and a limited choice or no choice at all with regard to the ways of controlling the movement of the visor or the force required to move the visor and its speed of movement.
  • One technical problem forming the basis of the present disclosure is to provide a movement device with a structure which allows a greater versatility of use and/or is able to achieve further advantages, as well as a helmet including this device, and a method for customizing the movement of one element in relation to another element in a helmet.
  • interaction element and/or interaction counter-element consist(s) of a part/parts which can be handled separately, i.e. inserts which can be easily detached from the movable body, or base body, with which they are associated.
  • the main advantage consists in the fact that the interaction element and/or interaction counter-element is/are interchangeable in relation to the movable body or the base body with which each of them is associated.
  • interaction elements and/or interaction counter-elements which are different from each other for example in terms of geometry, namely have different profiles for coupling with the interaction counter-element or interaction element, in terms of material or in terms of thickness, depending on the requirements of a person using the helmet.
  • a further advantage of the movement device according to the present disclosure consists in the fact that, in the event of incorrect or excessive interaction between the interaction element and the interaction counter-element, for example following excessive friction present between the two elements, a user is able to improve operation of the device, or modify it according to needs or preference, by merely changing the interaction element and/or interaction counter-element.
  • Another advantage consists in the possibility for the end user to interchange in a rapid and intuitive manner the interaction element and/or interaction counter- element, so as to allow more personalized adaptation depending on preference or the desired use.
  • the operation may be performed by disassembling solely the interaction element and/or interaction counter-element, i.e. without removing the movable body and/or the base body of the device, and therefore without detaching these parts from the elements of the helmet to which they are fixed, for example from the visor and the protective shell of the helmet. Separation may be performed for example by means of elastic deformation of the materials of the interaction element and/or interaction counter-element.
  • the movement device includes an assortment of interaction elements and/or interaction counter-elements which differ from each other, having for example a geometry which is suitably shaped so as to give rise to different movement "sensations", a different thickness so as to have a greater contact area and therefore greater friction, or a different material, or a combination of these features.
  • the interaction element in order to obtain the desired adjustment of the movement, includes a cylindrical stud, or similar pin-like or peg-like object, and the interaction counter-element has a coupling profile intended to make contact with the cylindrical stud.
  • the advantage of this embodiment consists in the constructional simplicity and the wide choice available with regard to the geometry and mutual coupling profile (or contact profile).
  • the counter-element comprises along said contact profile a plurality of depressions and humps which project by a preset amount and along which the cylindrical stud moves.
  • the interaction counter-element has a smooth contact profile, without depressions and humps.
  • the interaction counter-element has a toothed segment profile including teeth which project more than the humps of the previously defined embodiment.
  • said interaction element and/or said interaction counter-element are apt to undergo elastic deformation. Owing to this elastic deformation, whenever the aforementioned cylindrical stud passes over one of said humps or said teeth, slight compression thereof occurs such that, after being passed over, the elastic return movement of the hump or tooth produces a vibration, and therefore a slight sound, similar to a click, transmitting the aforementioned movement sensation to the user.
  • the movable body is movable between a start-of-travel position and an end-of-travel position; in this embodiment the interaction counter-element is provided with two recesses or seats apt to receive the aforementioned cylindrical stud in the start-of-travel position and end-of-travel position, respectively, of the movable body.
  • the interaction counter-element When the interaction counter-element is provided with only two of these recesses and a smooth coupling profile is provided in between them, a user may hear the abovementioned click sound only at the start of travel and end of travel of the movable body, while in the case of an interaction counter-element having one or more depressions/humps or even teeth on the coupling profile between the two recesses, the user is able to hear and count the number of clicks for each hump/tooth passed over until a start-of-travel position and/or the other end-of-travel position is reached.
  • each embodiment of the subject according to the present disclosure may have one or more of the advantages listed above; in any case it is not required that each embodiment should have simultaneously all the advantages listed.
  • FIG. 1 shows a side view of a movement device according to the present disclosure, applied to a helmet with visor, partly cross-sectioned;
  • Figure 2 shows a side view, on a larger scale, of the movement device according to Figure 1 ;
  • FIG. 3 shows a side view of the movement device according to Figure 2 from which a movable body has been removed;
  • FIG. 4 shows a side view of the movement device according to Figure 3 in which an interaction counter-element is shown separated from a base body;
  • FIGs 5a-5c show views of an assortment of interaction counter-elements of the movement device according to Figure 2;
  • FIG. 6a to 6e shows, its schematic form, views of a movement device according to the present disclosure in different operating positions
  • FIG. 7 shows a view of a base body of the movement device according to Figure 1 forming a seat for housing a slider;
  • FIG. 8 shows a view, on a larger scale, of a slider of the movement device according to Figure 1 able to be associated with the base body according to Figure 7;
  • FIG. 9 shows a side view of a movable body associated with a visor portion
  • - Figure 10 shows a cross-sectional view along the line X" -X 1 of Figure 9;
  • FIG. 11 shows a cross-sectional view along the line Xl-Xl of Figure 4.
  • the reference number 10 denotes a movement device according to the present disclosure.
  • the movement device 10 is applied to a helmet 12 including a shell 14 protecting the head of a user and a visor
  • the movement device 10 is intended to move the visor 16 in relation to the shell 14 of the helmet 12 by means of a rotational or pivoting movement about an axis X. More particularly, two movement devices 10, only one of which is visible in Figure 1 , are associated with the helmet 12, said devices being arranged on opposite sides in so-called temple regions of a user's head, namely along the sides of the helmet 12 which protect the temple zones of the user's head.
  • the axis X extends between one temple region and another and is the same for both the movement devices 10.
  • a single movement device 10 is described, namely the device located on the right-hand side of the shell 14 when the viewing the helmet 12 from the front, or in other words the movement device 10 located in the user's left-hand temple region. This device is viewed from outside the helmet 12.
  • Figures 6a to 6e show schematically the movement device 10 which is located on the side opposite to the side shown in Figure 1 , i.e. the movement device located in the right-hand temple region, and this movement device is viewed from inside the shell 14 of the helmet 12; therefore, while Figures 1 to 4 show a view from one side (left-hand side, outside) of the movement device 10, Figures 6a to 6e show a view from the opposite side (right-hand side, inside).
  • Each movement device 10 is intended to displace the visor 16 between a first operating position, where said visor 16 is situated opposite the user's face and has a protective function (as shown in Figure 1 and in the corresponding Figure 6a), and a second operating position, where it is raised opposite the user's forehead (position shown schematically in Figure 6e), passing through a series of intermediate positions such as those shown in Figures 6b to 6d).
  • the movement device 10 comprises a base body 20, or support base, fixedly associated with the shell 14 of the helmet, for example by means of screws 21 , and arranged inside a respective housing 15 formed in the outer surface of the shell 14, and a movable body 24 ( Figures 6a to 6e; Figure 9) which is movable in relation to the base body 20 and in the example partially overlaps the base body 20.
  • the movable body 24 is shown partially cut-away in Figures 1 and 2.
  • the movable body 24 and the base body 20 are made of acetal resin, polycarbonate, ABS or similar materials which have a suitable mechanical strength.
  • the movable body 24 is stably associated with the visor 16 and rotates with it.
  • the connection between the movable body 24 and the visor 16 is achieved, in the example, by moulding the movable body 24 and the visor 16 as one piece, or, in an embodiment not shown, is obtained by means of screws or similar fixing means.
  • the movable body 24 has an oblong and tapered shape including a first region 24a with a smaller width and a second, substantially ring-like region 24b with a larger width or diameter (Figure 9, Figure 10).
  • the movable body 24 comprises a rotational shaft - denoted generally by the number 25 - which is situated in the larger width region 24b and includes a pair of curved projections 26, 28 situated opposite each other in relation to the axis X of rotation of the visor 16, each curved projection 26, 28 having the form of an arc of a circle, indicated by a broken line in Figures 6a and 6d and denoted by the letter C, said circle having its centre on the axis X of rotation.
  • Each curved projection 26, 28 is housed inside a corresponding seat for rotation 30, 31 formed in the base body 20.
  • Two seats for rotation 30, 31 are therefore provided, being situated opposite each other in relation to the axis X and each of them having the form of an arc of a circle C ( Figure 4) which is also centred on the axis X of rotation.
  • the curved projections 26, 28 are retained inside the corresponding seat for rotation 30, 31 by means of an engaging slider 32 which includes an engagement element 32a intended to engage with the curved projection 28 and also includes a spring portion 32b.
  • the engaging slider 32 and the seats for rotation 30, 31 will be described in greater detail below.
  • the movement device 10 comprises an interaction element 35 designed to cooperate, during movement of the movable body 24, with an interaction counter- element 36.
  • an interaction element 35 designed to cooperate, during movement of the movable body 24, with an interaction counter- element 36.
  • a frictional force is generated between the two elements 35, 36 and opposes the movement, thus allowing said body to stop in a plurality of positions.
  • the interaction element 35 comprises a cylindrical stud 38 or cylinder piece extending at right angles from the surface of the movable body 24, on the side directed towards the base body 20, along an axis Y parallel to the axis of rotation X.
  • the stud 38 in the rotational shaft 25 are arranged at a set mutual distance and have the same orientation towards the base body 20, their respective axes Y, X also being parallel to each other.
  • the stud 38 is formed as one piece with the movable body 24, but it may also be made as a structurally independent part which is subsequently associated with the movable body 24, for example by means of engagement, and is removable, if necessary, for example by means of elastic deformation of said engaged joint.
  • the interaction counter-element 36 is an insert, i.e. an element which is structurally independent of the base body 20 with which it is associated. It therefore consists of a part which is removably associated with the base body 20 (as shown in Figure 4), and may be removed as required, for example in order to replace it.
  • the interaction counter-element 36 is located between the rotational shaft 25 and the stud 38.
  • the base body 20 includes a curved slit 40 which extends over a circle arc and is intended to receive a lug 41 with a shape matching that of the slit 40.
  • the lug 41 projects at right angles from the side of the interaction counter-element 36 facing the base body 20.
  • the 41 is intended to be inserted by means of elastic deformation inside the slit 40, passing underneath the base body 20, i.e. between the latter and the protective shell 14.
  • the interaction counter-element 36 (shown in detail in different embodiments in Figures 5a to 5c) is made of plastic having a predefined flexibility and the elasticity (in the example PC or ABS) so as to undergo suitable elastic deformation during movement of the interaction element 35.
  • the interaction counter-element 36 is an insert in the form of a toothed segment, with lightly formed teeth, and has a coupling profile 39 intended to come into contact with a cylindrical side surface of the stud 38 of the interaction element 35.
  • the profile 39 extends substantially along an arc of a circle denoted by C1.
  • the profile 39 of the interaction counter-element 36 in the form of an arc of a circle C1 , when mounted on the base body 20, also has its centre coinciding with the axis of rotation X of the movable body 24.
  • the interaction counter-element 36 is retained between the base body 20 and the stud 38 of the interaction element 35.
  • the base body 20 comprises two recesses 42, 43 which are each located near one side of the slit 40 and inside which two corresponding edges 44, 45 of the interaction counter-element 36 are intended to be inserted by means of elastic deformation.
  • the interaction counter-element 36 is a kind of toothed segment, with lightly formed teeth
  • the profile 39 making contact with the stud 38 comprises a plurality of depressions 50, in the example three depressions 50, which alternate with four humps 51.
  • the depressions 50 form grooves for receiving the stud 38 between the start-of- travel position and end-of-travel position of the movable body 24.
  • the profile 39 also has two recesses 47, 48 in the form of a circle arc, between which the depressions 50 and the humps 51 are arranged and which are apt to receive the stud 38.
  • a first recess 48 is intended to receive the stud 38 in a first operating position of the visor 16, when the latter is located opposite the user's face (comparable Basically to a start-of-travel position of the movable body 24/visor 16), and a second recess 47 is intended to receive the stud 38 in the abovementioned second, fully raised, operating position of the visor 16, when the latter is located opposite the user's forehead (comparable Basically to an end-of-travel position of the movable body 24/visor 16).
  • the movable body 24 is structured so that, when the curved projections 26, 28 are inserted into the corresponding seats for rotation 30, 31, the stud 38 is positioned so as to make pressing contact against the profile 39 of the interaction counter-element 36 such that the interaction counter-element 36 undergoes, as mentioned, slight elastic deformation as a result of the interaction element 35. Since these consist, therefore, of elements able to generate a fiction, during the movement of the movable body 24 the two elements 35, 36 rub against each other, thereby generating a fictional force which offers a slight resistance of suitable intensity to the movement.
  • the elastic deformation of the interaction counter-element 36 results in the generation of a click sound during the movement of the movable body 24 whenever the stud 38 passes over a hump 51 of the profile 39, said sound being generated by the vibration of the hump 51 after the stud 38 has passed over it.
  • the stud 38 moving between the two recesses 48, 47 along the profile 39 from the start-or-travel position into the end-of-travel position, strikes the humps 51 producing a click-like sound when it passes over each hump 51.
  • a user may therefore hear a click at regular intervals between said two positions, i.e. a click for each hump 51 passed over.
  • the interaction counter-element 36 includes a central hole or opening 53 which also has a weight-reducing function ( Figures 5a- 5c). Since the interaction counter-element 36 is removably associated with the base body 20, there exists the possibility of replacing this interaction counter-element 36 with another interaction counter-element made of different material and having a different thickness and geometry.
  • the material, thickness and number of depressions 50 and humps 51 of the interaction counter-element 36 are suitably chosen so as to obtain a given movement (harder or easier to perform, i.e. with greater or lesser resistance) of the movable body 24 relative to the base body 20, with the possibility also, if necessary, of the aforementioned predetermined click sound.
  • interaction counter-element 36 described above with another interaction counter-element (not shown in the drawings) having the same geometry and made of the same material, but of greater thickness, it is possible to obtain a greater area of contact/friction with the stud 38 and therefore a greater resistance to the movement.
  • This modification may be useful in the case or where a user wishes to "sense" more clearly the force needed to operate the visor 16 between the two start-of-travel and end-of-travel positions.
  • the interaction counter-element 36 described above may be replaced, if necessary, with another interaction counter-element 136, such as that shown in Figure 5a.
  • the parts and components of the interaction counter- elements 136 which have the same function and structure in the interaction counter- element 36 described above retain the same reference number and therefore are not described again in detail.
  • the interaction counter-element 136 has the same thickness as the interaction counter-element 36 described above and is made of the same material, while it has, in the zone where it makes contact with the interaction element, two recesses 148, 147, which are formed in the start-of-travel and end-of- travel operating positions, and a curved profile 139, which is substantially smooth and continuous, being devoid of depressions and humps.
  • the user hears a click sound only in the start-of-travel position and end- of-travel position, when the stud 38 passes over corresponding edges 151 provided in the vicinity of the recesses 148, 147, respectively.
  • interaction counter-element 36 described above may be replaced, if necessary, with another interaction counter-element 236, such as that shown in Figure 5c.
  • the parts and components of the interaction counter-element 236 which have the same function and structure in the interaction counter-element 36 described above retain the same reference number and therefore are not described again in detail.
  • the interaction counter-element 236 has the same thickness as the interaction counter-element 36 described above and is made of the same material, while it has, in the zone where it makes contact with the interaction element 35, two recesses 248, 247 which are formed in the start-of-travel and end- of-travel positions, and a curved profile 239 with depressions 250 and humps 251 having a depth and relief respectively greater than the depressions 50 and humps 51 of the interaction counter-element 36.
  • the undulating shape of the profile of the counter-element 236 comprises depressions 250 and humps 251 which, being the well-defined, form proper teeth making contact with the stud 38 of the interaction element 35.
  • the user has to make more of an effort to move the visor 16 and also hears a well-defined click sound which is louder than that of the previous embodiment, in the start-of-travel position and end-of-travel position and whenever the stud 38 passes over a hump 251 between the recesses 248, 247, respectively.
  • a movement device 10 is therefore obtained where the movement of the visor 16 is accompanied at regular intervals and in a rhythmic manner by a well-defined sound and a greater force.
  • the movement device 10 comprises the engaging slider 32 which is shown in Figure 8 detached from the base body 20 shown in Figure 7.
  • the slider 32 includes a single body symmetrical in relation to a longitudinal axis S.
  • the slider 32 comprises, along said axis S, an engagement element 32a intended to cooperate with the curved projection 28 so as to " retain the curved projections 26, 28 of the movable body 24 inside the respective seats for rotation 30, 31 , two lateral extensions 100, 101 extending parallel to, and on opposite sides of, the axis S, a grip element 103 which extends between the two lateral extensions 100, 101 transversely in relation to the axis S (namely in the manner of a bridge between the lateral extensions 100, 101) and the aforementioned spring portion 32b.
  • the grip element 103 is therefore arranged between the engagement element 32a and the spring portion 32b or spring element.
  • the spring element 32b in the example is a compression spring and comprises two arms 132a, 132b each forming an appendage of a respective lateral extension 100, 101 and converging towards the longitudinal axis S on the opposite side to the engagement element 32a.
  • the grip element 103, the two lateral extensions 100, 101 and the engagement element 32a form a ring inside which a cavity 107 is defined.
  • This cavity 107 is intended to receive a user's finger, for example the index finger, which is inserted so as to exert a force on the grip element 103 in the direction of the axis S on the opposite side to the engagement element 32a.
  • a grip element 103 and a spring element 32b are incorporated in the same body of the engaging slider 32.
  • the slider 32 includes, formed on each lateral extension 100, 101 , in the vicinity of the grip element 103, two shoulders 100a, 101a or abutting surfaces.
  • the two shoulders 100a, 101a are arranged inclined and converging towards the longitudinal axis S on the side of, or with an inclination towards, the engagement element 32a.
  • the engagement element 32a has an L- shaped section including an end appendage 133 which forms the wing of the L.
  • the end appendage 133 has a concave or curved profile, in the example a circle segment, and is intended to stably retain by means of pressing contact the curved projection 28 of the movable body 24 fixed to the shell 16.
  • the curved shape of the end appendage 133 allows a rotational movement of the shell 16 about the axis X without hindering rotation.
  • the slider 32 is intended to be inserted inside a sliding seat 126 formed in the base body 20. Even more particularly with reference to Figures 7, 8, 11 and 12, the slider 32 is able to be inserted into the seat 126 from underneath the plane of the sheet according to Figure 7, before fixing the entire movement device 10 to the shell 14.
  • the seat 126 of the base body 20 intended to house the slider 32 is symmetrical in relation to an axis S 1 .
  • the seat 126 includes a first zone 126a, including a first bottom side 226a and a bottom projection 226b arranged in the form of an L ( Figure 7) and intended to cooperate in abutment with the free ends of the arms 132a, 132b of the spring element 32b.
  • the seat 126 also includes a second side 326a and a third side 326b parallel to each other and to the longitudinal axis S' against which the lateral extensions 100, 101 , respectively, of the slider 32 are intended to be arranged.
  • the two lateral extensions 100, 101 are arranged resting against a respective inner face of the second side 326a and the third side 326b, namely, with reference to Figure 7, the face directed underneath the plane of the sheet, towards the shell 14, when the device 10 is mounted on the helmet 12.
  • the second side 326a and the third side 326b define, at the respective ends, on the part directed towards the first bottom side 226a, two respective inclined surfaces 326c, 326d against which the two shoulders 100a, 101a of the slider 32 are intended to be placed in abutment.
  • the slider 32 when housed inside the seat 126, has its two lateral extensions 100, 101 arranged underneath the respective second side 326a and third side 326b, and the free ends of the arms 132a, 132b of the spring element 32b are arranged on top of the bottom projection 226b or bottom edge.
  • the seat 126 includes a second zone 126b intended to receive the engagement element 32a of the slider 32.
  • the base body 20 includes a bridge element 127 which connects two opposite sides 120a, 120b of the base body 20 and in fact separates the seat 126 of the slider 32 from the seat for rotation 31.
  • the end appendage 133 When the slider 32 is inserted into the seat 126, the end appendage 133 rests on the bridge element 127, on the top thereof. Basically, in relation to the plane of the sheet, the end appendage 133 rests on an upper face 127a of the bridge element 127 ( Figure 11). An inner portion 233, or shoulder, of the engagement element 32a is therefore placed in abutment against the bridge element 127, on the opposite side to the seat for rotation 30.
  • the slider 32 when the slider 32 is housed inside the seat 126, the free ends of the arms 132a, 132b of the spring element 32b are arranged on top of the bottom projection 226b, the two lateral extensions 100, 101 are arranged underneath the respective second side 326a and third side 326b, while the engagement element 32a is positioned on top of the bridge element 127.
  • the lateral extensions 100, 101 when the movement device 10 is mounted on the helmet 12, the lateral extensions 100, 101 are arranged between the shell 14 and the respective second side 326a and third side 326b, the bottom projection 226b is arranged between the shell 14 and the free ends of the arms 132a, 132b, and the bridge element 127 is arranged between the shell 14 and the engagement element 32a.
  • This arrangement of the slider 32 ensures a stable connection between the slider 32 and the base body 20 and a stable guided displacement of the slider 32 in relation to the base body 20, parallel to the axes of symmetry S, S 1 .
  • each of them is formed by means of a curved cavity which extends over a circle segment which subtends an angle of about 115°.
  • the base body 20 includes a substantially disc-shaped central element 129; on the periphery of the seats for rotation 30, 31 , the base body 20 includes an outer circular rim 130 which partially coincides with the aforementioned bridge element 127 and is connected on opposite sides to the central element 129 by means of connecting appendages 131a, 131b.
  • each seat 30, 31 widens out within the outer circular rim 130 in the form of a respective curved recess 128a, 128b.
  • the two recesses 128a, 128b are substantially aligned along said longitudinal axis S' and are symmetrical with respect thereto.
  • Each recess 128a, 128b defines within the base body 20 two retaining walls 140, 141 which are respectively arranged on diametrically opposite sides of the central element 129 and therefore in relation to the axis of rotation X.
  • the slider 32 is retracted towards the first bottom side 226a of the seat 126 so that the spring element 32b is compressed and deformed against the first side 226a of the seat 126, causing flexing of the two arms 132a, 132b. Retraction of the slider 32 is performed manually by the user by operating the grip element 103.
  • the engagement element 32a frees part of the seat for rotation 31 and allows insertion of the curved projections 26, 28.
  • the L-shaped wings of the two curved projections 26, 28 are housed inside the recesses 128a, 128b of the seats for rotation 30, 31. Then the slider 32 is released from the retracted position, so that the spring element 32b returns elastically into the initial condition (i.e. the undeformed or less deformed condition) and pushes the slider 32 towards the seat for rotation 31 , until the shoulders 100a, 101a of the slider come into abutment against the respective inclined surfaces 326c, 326d. Therefore, the engagement element 32a surmounts with the end appendage 133 the curved projection 28 which is located in the seat 31, in particular inside the recess 128b.
  • the end appendage 133 is arranged between the curved projection 28 and the plane of the visor 16. In this way, extraction of the curved projection 28 from the seat for rotation 31 is prevented and the connection between the movable body 24 (fixed to the visor 16) and the base body 20 (fixed to the shell 14) is ensured.
  • the visor 16 By then rotating the visor 16 in relation to the shell 14, the L-shaped wings of the curved projections 26, 28 pass underneath the respective retaining walls 140, 141. Removal of the movable body 24 from the base body 20 is possible by performing the steps described above in reverse order.
  • the slider 32 which is elastically deformable, therefore allows a removable connection between the base body 20 and the movable body 24.

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

The present disclosure relates to a movement device (10) for a helmet (12) for moving a first element (16) of the helmet (12) in relation to a second element (14) of the helmet (12). The movement device (10) includes a movable body (24) fixedly associated with the first element (16), a base body (20) fixedly associated with the second element (14), an interaction element (35) associated with the movable body (24) and an interaction counter-element (36, 136, 236) associated with the base body (20). The interaction element (35) and the interaction counter-element (36, 136, 236) are able to interact mutually for holding, in at least one given position, the movable body (24) in relation to the base body (20). At least one of said interaction element (35) and said interaction counter-element (36, 136, 236) is structurally independent from the movable body (24) or the base body (20) with which it is associated.

Description

MOVEMENT DEVICE FOR A HELMET FOR MOVING A FIRST ELEMENT OF THE HELMET IN RELATION TO A SECOND ELEMENT OF THE HELMET
DESCRIPTION
The present disclosure relates in general to a movement device for a helmet. In particular, the present disclosure relates to a movement device for a helmet for moving a first element of the helmet in relation to a second element of the helmet. For example, in a helmet including a visor and a shell, the movement device is able to move the visor in relation to the shell of the helmet between a first operating position, or active position in front of the user's face, and a second operating position, or inactive position, i.e. raised opposite the user's forehead. Alternatively, for example, in a helmet including a chin bar or a movable top guard, the movement device is able to move the chin bar or top guard in relation to the shell or is able to move similar elements or parts of the helmet. The abovementioned movement device is therefore applicable to all protective helmets with parts which perform a movement, be it a translatory, rotational or rotary/translatory movement.
In the description below, in order to simplify and clarify illustration, reference will be made in particular to the use of the movement device for a helmet, in particular a motorcyclist's helmet, including a protective shell and a visor, wherein said movement device allows controlled adjustment of the movement of the visor (forming said first element) in relation to the helmet shell (forming said second element).
In particular, with specific reference to a helmet provided with visor, it is known that there exists the need to have control over rotation of the visor so that movement of the visor occurs at any constant speed between an active position and inactive position, and vice versa, without sudden movements which could generate vibrations or jerks affecting the head, or in regular steps. Control and adjustment of the visor movement represent per se for the user some of the most important features when choosing a helmet. In fact, it is known that motorcyclists tend to choose a helmet depending on the possibility of controlling and adjusting the movement of the visor when it is raised from a first operating position in front of the user's face into a second operating position where it is raised in the zone of the user's forehead. Adjustment or control of the movement allows the user to determine exactly the position of the visor when the helmet is worn, without necessarily having to look at the visor, for example also when the user is riding a motorcycle. In other words, adjustment of the movement allows a user to "sense", for example by means of a click action, when the visor is in a closed or open position, namely understand whether it is fully closed or fully open, as well as any intermediate positions. In fact, in some cases, it is advantageous to adjust the visor movement only between the two abovementioned operating positions, while in other cases it is advantageous to adjust the visor movement also over a plurality of intermediate points between the two operating positions.
In order to meet the abovementioned need, it is known to use in a helmet a movement device which includes a movable body, fixedly associated with the first element of the helmet, and a base body or fixed body, fixedly associated with the second element.
In order to control and adjust the movement of the visor in relation to the shell, an interaction element is associated with the movable body and an interaction counter- element is associated with the base body. The interaction element and the interaction counter-element interact with each other so as to hold, in at least one given position, the movable body (and therefore the first element of the helmet) in relation to the base body (and therefore in relation to the second element of the helmet). In particular, in the present disclosure the terms "interaction element" and "interaction counter-element" are understood as meaning elements between which a stable interaction or contact occurs, this being, for example, of a pressing nature, or consisting of an actual rubbing or frictional contact, such that between the two elements there is at least partially a mutual engagement which results in - at least temporary - retention of the movable body in relation to the base body. This retaining action may result in stoppage of the movable body in a start-of-travel or end-of-travel position of the movable body in relation to the base body, or also in an intermediate position between the two start-of-travel and end-of-travel positions. This operating mode, although advantageous from many points of view, nevertheless poses a number of drawbacks which have not yet been solved. One drawback consists, for example, in the fact that there is a limited versatility during use, in particular in the helmet sector, and a limited choice or no choice at all with regard to the ways of controlling the movement of the visor or the force required to move the visor and its speed of movement. One technical problem forming the basis of the present disclosure is to provide a movement device with a structure which allows a greater versatility of use and/or is able to achieve further advantages, as well as a helmet including this device, and a method for customizing the movement of one element in relation to another element in a helmet.
This is obtained by providing a movement device for a helmet as defined in the independent claim 1. Secondary characteristic features of the abovementioned movement device are defined in the corresponding dependent claims.
The abovementioned problem is also solved by a kit according to claim 15 and following dependent claims, by a helmet according to claims 18 and 19 and following dependent claims and by a method for customizing the movement of a first element in relation to a second element of a helmet according to claim 22 and following dependent claims.
The expression "structurally independent" is understood as meaning that the interaction element and/or interaction counter-element consist(s) of a part/parts which can be handled separately, i.e. inserts which can be easily detached from the movable body, or base body, with which they are associated.
A number of significant advantages are provided by the abovementioned movement device.
The main advantage consists in the fact that the interaction element and/or interaction counter-element is/are interchangeable in relation to the movable body or the base body with which each of them is associated.
As a result it is possible to provide an assortment of interaction elements and/or interaction counter-elements which are different from each other for example in terms of geometry, namely have different profiles for coupling with the interaction counter-element or interaction element, in terms of material or in terms of thickness, depending on the requirements of a person using the helmet.
A further advantage of the movement device according to the present disclosure consists in the fact that, in the event of incorrect or excessive interaction between the interaction element and the interaction counter-element, for example following excessive friction present between the two elements, a user is able to improve operation of the device, or modify it according to needs or preference, by merely changing the interaction element and/or interaction counter-element. As a result, owing to the availability of another interaction element and/or another interaction counter-element made of a different material or having a geometry or thickness which are different from that/those of the element mounted on the device, it is possible to vary, depending on use or preference, the movement of the movable body in relation to the base body by mounting this another element and/or counter- element; for example in certain situations a harder and stiffer movement (i.e. greater friction) is required, or in other cases an easier and smoother movement (i.e. less friction) is required.
Further advantages consist in the possibility of moulding the interaction and/or interaction counter-element using materials which are different from those of the movable body or base body with which each of them is associated; this means it is possible choose plastic materials which are most suited to the different functions of the interaction elements/counter-elements and the base body and movable body of the device, respectively. This possibility may also be conveniently combined with the need for a material of the interaction counter-element and/or interaction element which is more elastic, in order to improve the sliding action, and a material for the base body and/or the movable body which is stronger, in order to be able to obtain a device which is stronger overall and at the same time offers the possibility of satisfactory control of the movement.
Another advantage consists in the possibility for the end user to interchange in a rapid and intuitive manner the interaction element and/or interaction counter- element, so as to allow more personalized adaptation depending on preference or the desired use. The operation may be performed by disassembling solely the interaction element and/or interaction counter-element, i.e. without removing the movable body and/or the base body of the device, and therefore without detaching these parts from the elements of the helmet to which they are fixed, for example from the visor and the protective shell of the helmet. Separation may be performed for example by means of elastic deformation of the materials of the interaction element and/or interaction counter-element.
In other words, preferably, only the interaction element and/or interaction counter- element may be removed, without having to remove the elements of the helmet. In a preferred embodiment the movement device includes an assortment of interaction elements and/or interaction counter-elements which differ from each other, having for example a geometry which is suitably shaped so as to give rise to different movement "sensations", a different thickness so as to have a greater contact area and therefore greater friction, or a different material, or a combination of these features. In one embodiment, in order to obtain the desired adjustment of the movement, the interaction element includes a cylindrical stud, or similar pin-like or peg-like object, and the interaction counter-element has a coupling profile intended to make contact with the cylindrical stud. The advantage of this embodiment consists in the constructional simplicity and the wide choice available with regard to the geometry and mutual coupling profile (or contact profile).
In fact, in a preferred embodiment, the counter-element comprises along said contact profile a plurality of depressions and humps which project by a preset amount and along which the cylindrical stud moves.
Alternatively, the interaction counter-element has a smooth contact profile, without depressions and humps. Alternatively the interaction counter-element has a toothed segment profile including teeth which project more than the humps of the previously defined embodiment.
Preferably, during a movement of said movable body, said interaction element and/or said interaction counter-element are apt to undergo elastic deformation. Owing to this elastic deformation, whenever the aforementioned cylindrical stud passes over one of said humps or said teeth, slight compression thereof occurs such that, after being passed over, the elastic return movement of the hump or tooth produces a vibration, and therefore a slight sound, similar to a click, transmitting the aforementioned movement sensation to the user. In one embodiment, the movable body is movable between a start-of-travel position and an end-of-travel position; in this embodiment the interaction counter-element is provided with two recesses or seats apt to receive the aforementioned cylindrical stud in the start-of-travel position and end-of-travel position, respectively, of the movable body.
When the interaction counter-element is provided with only two of these recesses and a smooth coupling profile is provided in between them, a user may hear the abovementioned click sound only at the start of travel and end of travel of the movable body, while in the case of an interaction counter-element having one or more depressions/humps or even teeth on the coupling profile between the two recesses, the user is able to hear and count the number of clicks for each hump/tooth passed over until a start-of-travel position and/or the other end-of-travel position is reached.
Such variability in use is perfectly suited for the requirements associated with the movement of a visor relative to a helmet; in fact, when a helmet is used for sporting purposes, usually a louder opening/closing click is required, and therefore fewer teeth are provided on the coupling profile (in other words only the start-of-travel and end-of-travel positions of the visor must be audible), whereas, when a helmet is used for tourism, usually each opening/closing step must be more audible and therefore several teeth are provided on the coupling profile.
Further advantages, characteristic features and the modes of use of the movement device, helmet and method according to the present disclosure will become clear from the following detailed description of a number of preferred embodiments, provided by way of a non-limiting example.
It is clear, however, that each embodiment of the subject according to the present disclosure may have one or more of the advantages listed above; in any case it is not required that each embodiment should have simultaneously all the advantages listed.
Reference shall be made to the figures in the accompanying drawings in which:
- Figure 1 shows a side view of a movement device according to the present disclosure, applied to a helmet with visor, partly cross-sectioned;
- Figure 2 shows a side view, on a larger scale, of the movement device according to Figure 1 ;
- Figure 3 shows a side view of the movement device according to Figure 2 from which a movable body has been removed;
- Figure 4 shows a side view of the movement device according to Figure 3 in which an interaction counter-element is shown separated from a base body; - Figures 5a-5c show views of an assortment of interaction counter-elements of the movement device according to Figure 2;
- Figures 6a to 6e shows, its schematic form, views of a movement device according to the present disclosure in different operating positions;
- Figure 7 shows a view of a base body of the movement device according to Figure 1 forming a seat for housing a slider;
- Figure 8 shows a view, on a larger scale, of a slider of the movement device according to Figure 1 able to be associated with the base body according to Figure 7;
- Figure 9 shows a side view of a movable body associated with a visor portion; - Figure 10 shows a cross-sectional view along the line X" -X1 of Figure 9;
- Figure 11 shows a cross-sectional view along the line Xl-Xl of Figure 4.
With reference to the accompanying figures, the reference number 10 denotes a movement device according to the present disclosure.
In particular, in the example shown in the figures, the movement device 10 is applied to a helmet 12 including a shell 14 protecting the head of a user and a visor
16. The movement device 10 is intended to move the visor 16 in relation to the shell 14 of the helmet 12 by means of a rotational or pivoting movement about an axis X. More particularly, two movement devices 10, only one of which is visible in Figure 1 , are associated with the helmet 12, said devices being arranged on opposite sides in so-called temple regions of a user's head, namely along the sides of the helmet 12 which protect the temple zones of the user's head. The axis X extends between one temple region and another and is the same for both the movement devices 10. In order to simplify illustration, in the description below only a single movement device 10 is described, namely the device located on the right-hand side of the shell 14 when the viewing the helmet 12 from the front, or in other words the movement device 10 located in the user's left-hand temple region. This device is viewed from outside the helmet 12.
Figures 6a to 6e show schematically the movement device 10 which is located on the side opposite to the side shown in Figure 1 , i.e. the movement device located in the right-hand temple region, and this movement device is viewed from inside the shell 14 of the helmet 12; therefore, while Figures 1 to 4 show a view from one side (left-hand side, outside) of the movement device 10, Figures 6a to 6e show a view from the opposite side (right-hand side, inside).
The view from the two sides (inside/right-hand side; outside/left-hand side) clearly show all the components of the movement device 10, as will be described below. Each movement device 10 is intended to displace the visor 16 between a first operating position, where said visor 16 is situated opposite the user's face and has a protective function (as shown in Figure 1 and in the corresponding Figure 6a), and a second operating position, where it is raised opposite the user's forehead (position shown schematically in Figure 6e), passing through a series of intermediate positions such as those shown in Figures 6b to 6d).
In the example, the movement device 10 comprises a base body 20, or support base, fixedly associated with the shell 14 of the helmet, for example by means of screws 21 , and arranged inside a respective housing 15 formed in the outer surface of the shell 14, and a movable body 24 (Figures 6a to 6e; Figure 9) which is movable in relation to the base body 20 and in the example partially overlaps the base body 20. The movable body 24 is shown partially cut-away in Figures 1 and 2. The movable body 24 and the base body 20 are made of acetal resin, polycarbonate, ABS or similar materials which have a suitable mechanical strength. The movable body 24 is stably associated with the visor 16 and rotates with it. The connection between the movable body 24 and the visor 16 is achieved, in the example, by moulding the movable body 24 and the visor 16 as one piece, or, in an embodiment not shown, is obtained by means of screws or similar fixing means. The movable body 24 has an oblong and tapered shape including a first region 24a with a smaller width and a second, substantially ring-like region 24b with a larger width or diameter (Figure 9, Figure 10). The movable body 24 comprises a rotational shaft - denoted generally by the number 25 - which is situated in the larger width region 24b and includes a pair of curved projections 26, 28 situated opposite each other in relation to the axis X of rotation of the visor 16, each curved projection 26, 28 having the form of an arc of a circle, indicated by a broken line in Figures 6a and 6d and denoted by the letter C, said circle having its centre on the axis X of rotation.
Each curved projection 26, 28 is housed inside a corresponding seat for rotation 30, 31 formed in the base body 20. Two seats for rotation 30, 31 are therefore provided, being situated opposite each other in relation to the axis X and each of them having the form of an arc of a circle C (Figure 4) which is also centred on the axis X of rotation.
The curved projections 26, 28 are retained inside the corresponding seat for rotation 30, 31 by means of an engaging slider 32 which includes an engagement element 32a intended to engage with the curved projection 28 and also includes a spring portion 32b. The engaging slider 32 and the seats for rotation 30, 31 will be described in greater detail below.
The movement device 10 comprises an interaction element 35 designed to cooperate, during movement of the movable body 24, with an interaction counter- element 36. In the example, during movement of the movable body 24 in relation to the base body 20, a frictional force is generated between the two elements 35, 36 and opposes the movement, thus allowing said body to stop in a plurality of positions.
In particular, the interaction element 35 comprises a cylindrical stud 38 or cylinder piece extending at right angles from the surface of the movable body 24, on the side directed towards the base body 20, along an axis Y parallel to the axis of rotation X.
Basically, the stud 38 in the rotational shaft 25 are arranged at a set mutual distance and have the same orientation towards the base body 20, their respective axes Y, X also being parallel to each other. In the example the stud 38 is formed as one piece with the movable body 24, but it may also be made as a structurally independent part which is subsequently associated with the movable body 24, for example by means of engagement, and is removable, if necessary, for example by means of elastic deformation of said engaged joint.
The interaction counter-element 36 is an insert, i.e. an element which is structurally independent of the base body 20 with which it is associated. It therefore consists of a part which is removably associated with the base body 20 (as shown in Figure 4), and may be removed as required, for example in order to replace it. In particular, the interaction counter-element 36 is located between the rotational shaft 25 and the stud 38. In order to provide a removable connection between the base body 20 and the counter-element 36, in the example shown the base body 20 includes a curved slit 40 which extends over a circle arc and is intended to receive a lug 41 with a shape matching that of the slit 40. The lug 41 projects at right angles from the side of the interaction counter-element 36 facing the base body 20. The 41 is intended to be inserted by means of elastic deformation inside the slit 40, passing underneath the base body 20, i.e. between the latter and the protective shell 14.
More particularly, the interaction counter-element 36 (shown in detail in different embodiments in Figures 5a to 5c) is made of plastic having a predefined flexibility and the elasticity (in the example PC or ABS) so as to undergo suitable elastic deformation during movement of the interaction element 35. Even more particularly, in an embodiment shown in Figures 1 to 4, Figures 6a to 6e and in detail in Figure 5b, the interaction counter-element 36 is an insert in the form of a toothed segment, with lightly formed teeth, and has a coupling profile 39 intended to come into contact with a cylindrical side surface of the stud 38 of the interaction element 35. The profile 39 extends substantially along an arc of a circle denoted by C1. The profile 39 of the interaction counter-element 36, in the form of an arc of a circle C1 , when mounted on the base body 20, also has its centre coinciding with the axis of rotation X of the movable body 24. Basically, the interaction counter-element 36 is retained between the base body 20 and the stud 38 of the interaction element 35. In particular, the base body 20 comprises two recesses 42, 43 which are each located near one side of the slit 40 and inside which two corresponding edges 44, 45 of the interaction counter-element 36 are intended to be inserted by means of elastic deformation.
As mentioned, the interaction counter-element 36 is a kind of toothed segment, with lightly formed teeth, and in this connection it is mentioned that the profile 39 making contact with the stud 38 comprises a plurality of depressions 50, in the example three depressions 50, which alternate with four humps 51. The depressions 50 form grooves for receiving the stud 38 between the start-of- travel position and end-of-travel position of the movable body 24. The profile 39 also has two recesses 47, 48 in the form of a circle arc, between which the depressions 50 and the humps 51 are arranged and which are apt to receive the stud 38.
In particular, a first recess 48 is intended to receive the stud 38 in a first operating position of the visor 16, when the latter is located opposite the user's face (comparable Basically to a start-of-travel position of the movable body 24/visor 16), and a second recess 47 is intended to receive the stud 38 in the abovementioned second, fully raised, operating position of the visor 16, when the latter is located opposite the user's forehead (comparable Basically to an end-of-travel position of the movable body 24/visor 16).
As mentioned above, the movable body 24 is structured so that, when the curved projections 26, 28 are inserted into the corresponding seats for rotation 30, 31, the stud 38 is positioned so as to make pressing contact against the profile 39 of the interaction counter-element 36 such that the interaction counter-element 36 undergoes, as mentioned, slight elastic deformation as a result of the interaction element 35. Since these consist, therefore, of elements able to generate a fiction, during the movement of the movable body 24 the two elements 35, 36 rub against each other, thereby generating a fictional force which offers a slight resistance of suitable intensity to the movement.
The elastic deformation of the interaction counter-element 36 results in the generation of a click sound during the movement of the movable body 24 whenever the stud 38 passes over a hump 51 of the profile 39, said sound being generated by the vibration of the hump 51 after the stud 38 has passed over it. In other words, the stud 38, moving between the two recesses 48, 47 along the profile 39 from the start-or-travel position into the end-of-travel position, strikes the humps 51 producing a click-like sound when it passes over each hump 51. A user may therefore hear a click at regular intervals between said two positions, i.e. a click for each hump 51 passed over.
In order to favour elastic deformation, the interaction counter-element 36 includes a central hole or opening 53 which also has a weight-reducing function (Figures 5a- 5c). Since the interaction counter-element 36 is removably associated with the base body 20, there exists the possibility of replacing this interaction counter-element 36 with another interaction counter-element made of different material and having a different thickness and geometry.
Material, thickness and geometry are among the most significant variables which, when combined, produce a wide variation in the features of the interaction counter- element 36.
In fact, the material, thickness and number of depressions 50 and humps 51 of the interaction counter-element 36 are suitably chosen so as to obtain a given movement (harder or easier to perform, i.e. with greater or lesser resistance) of the movable body 24 relative to the base body 20, with the possibility also, if necessary, of the aforementioned predetermined click sound.
For example, by replacing the interaction counter-element 36 described above with another interaction counter-element (not shown in the drawings) having the same geometry and made of the same material, but of greater thickness, it is possible to obtain a greater area of contact/friction with the stud 38 and therefore a greater resistance to the movement. This modification may be useful in the case or where a user wishes to "sense" more clearly the force needed to operate the visor 16 between the two start-of-travel and end-of-travel positions.
Alternatively, the interaction counter-element 36 described above may be replaced, if necessary, with another interaction counter-element 136, such as that shown in Figure 5a. For this alternative, the parts and components of the interaction counter- elements 136 which have the same function and structure in the interaction counter- element 36 described above retain the same reference number and therefore are not described again in detail. More particularly, the interaction counter-element 136 has the same thickness as the interaction counter-element 36 described above and is made of the same material, while it has, in the zone where it makes contact with the interaction element, two recesses 148, 147, which are formed in the start-of-travel and end-of- travel operating positions, and a curved profile 139, which is substantially smooth and continuous, being devoid of depressions and humps. In this case, the user hears a click sound only in the start-of-travel position and end- of-travel position, when the stud 38 passes over corresponding edges 151 provided in the vicinity of the recesses 148, 147, respectively.
In a variation of embodiment, the interaction counter-element 36 described above may be replaced, if necessary, with another interaction counter-element 236, such as that shown in Figure 5c.
For this variation of embodiment, the parts and components of the interaction counter-element 236 which have the same function and structure in the interaction counter-element 36 described above retain the same reference number and therefore are not described again in detail.
More particularly, the interaction counter-element 236 has the same thickness as the interaction counter-element 36 described above and is made of the same material, while it has, in the zone where it makes contact with the interaction element 35, two recesses 248, 247 which are formed in the start-of-travel and end- of-travel positions, and a curved profile 239 with depressions 250 and humps 251 having a depth and relief respectively greater than the depressions 50 and humps 51 of the interaction counter-element 36. In other words, the undulating shape of the profile of the counter-element 236 comprises depressions 250 and humps 251 which, being the well-defined, form proper teeth making contact with the stud 38 of the interaction element 35. In this case, the user has to make more of an effort to move the visor 16 and also hears a well-defined click sound which is louder than that of the previous embodiment, in the start-of-travel position and end-of-travel position and whenever the stud 38 passes over a hump 251 between the recesses 248, 247, respectively. A movement device 10 is therefore obtained where the movement of the visor 16 is accompanied at regular intervals and in a rhythmic manner by a well-defined sound and a greater force.
As mentioned above, in order to join the movable body 24 to the base body 20, the movement device 10 comprises the engaging slider 32 which is shown in Figure 8 detached from the base body 20 shown in Figure 7. In this connection, the slider 32 includes a single body symmetrical in relation to a longitudinal axis S. In particular, the slider 32 comprises, along said axis S, an engagement element 32a intended to cooperate with the curved projection 28 so as to "retain the curved projections 26, 28 of the movable body 24 inside the respective seats for rotation 30, 31 , two lateral extensions 100, 101 extending parallel to, and on opposite sides of, the axis S, a grip element 103 which extends between the two lateral extensions 100, 101 transversely in relation to the axis S (namely in the manner of a bridge between the lateral extensions 100, 101) and the aforementioned spring portion 32b. The grip element 103 is therefore arranged between the engagement element 32a and the spring portion 32b or spring element. The spring element 32b in the example is a compression spring and comprises two arms 132a, 132b each forming an appendage of a respective lateral extension 100, 101 and converging towards the longitudinal axis S on the opposite side to the engagement element 32a.
As may be seen from Figure 8, the grip element 103, the two lateral extensions 100, 101 and the engagement element 32a form a ring inside which a cavity 107 is defined. This cavity 107 is intended to receive a user's finger, for example the index finger, which is inserted so as to exert a force on the grip element 103 in the direction of the axis S on the opposite side to the engagement element 32a. In other words, a grip element 103 and a spring element 32b are incorporated in the same body of the engaging slider 32. The slider 32 includes, formed on each lateral extension 100, 101 , in the vicinity of the grip element 103, two shoulders 100a, 101a or abutting surfaces. In particular, the two shoulders 100a, 101a are arranged inclined and converging towards the longitudinal axis S on the side of, or with an inclination towards, the engagement element 32a. It can also be seen from Figure 11 that the engagement element 32a has an L- shaped section including an end appendage 133 which forms the wing of the L. The end appendage 133 has a concave or curved profile, in the example a circle segment, and is intended to stably retain by means of pressing contact the curved projection 28 of the movable body 24 fixed to the shell 16. Basically, the curved shape of the end appendage 133 allows a rotational movement of the shell 16 about the axis X without hindering rotation.
The slider 32 is intended to be inserted inside a sliding seat 126 formed in the base body 20. Even more particularly with reference to Figures 7, 8, 11 and 12, the slider 32 is able to be inserted into the seat 126 from underneath the plane of the sheet according to Figure 7, before fixing the entire movement device 10 to the shell 14. The seat 126 of the base body 20 intended to house the slider 32 is symmetrical in relation to an axis S1. The seat 126 includes a first zone 126a, including a first bottom side 226a and a bottom projection 226b arranged in the form of an L (Figure 7) and intended to cooperate in abutment with the free ends of the arms 132a, 132b of the spring element 32b.
The seat 126 also includes a second side 326a and a third side 326b parallel to each other and to the longitudinal axis S' against which the lateral extensions 100, 101 , respectively, of the slider 32 are intended to be arranged. In particular, the two lateral extensions 100, 101 are arranged resting against a respective inner face of the second side 326a and the third side 326b, namely, with reference to Figure 7, the face directed underneath the plane of the sheet, towards the shell 14, when the device 10 is mounted on the helmet 12.
The second side 326a and the third side 326b define, at the respective ends, on the part directed towards the first bottom side 226a, two respective inclined surfaces 326c, 326d against which the two shoulders 100a, 101a of the slider 32 are intended to be placed in abutment.
Basically, the slider 32, when housed inside the seat 126, has its two lateral extensions 100, 101 arranged underneath the respective second side 326a and third side 326b, and the free ends of the arms 132a, 132b of the spring element 32b are arranged on top of the bottom projection 226b or bottom edge.
The seat 126 includes a second zone 126b intended to receive the engagement element 32a of the slider 32.
In the second zone 126b, the base body 20 includes a bridge element 127 which connects two opposite sides 120a, 120b of the base body 20 and in fact separates the seat 126 of the slider 32 from the seat for rotation 31.
When the slider 32 is inserted into the seat 126, the end appendage 133 rests on the bridge element 127, on the top thereof. Basically, in relation to the plane of the sheet, the end appendage 133 rests on an upper face 127a of the bridge element 127 (Figure 11). An inner portion 233, or shoulder, of the engagement element 32a is therefore placed in abutment against the bridge element 127, on the opposite side to the seat for rotation 30.
Basically, when the slider 32 is housed inside the seat 126, the free ends of the arms 132a, 132b of the spring element 32b are arranged on top of the bottom projection 226b, the two lateral extensions 100, 101 are arranged underneath the respective second side 326a and third side 326b, while the engagement element 32a is positioned on top of the bridge element 127. In other words, when the movement device 10 is mounted on the helmet 12, the lateral extensions 100, 101 are arranged between the shell 14 and the respective second side 326a and third side 326b, the bottom projection 226b is arranged between the shell 14 and the free ends of the arms 132a, 132b, and the bridge element 127 is arranged between the shell 14 and the engagement element 32a.
This arrangement of the slider 32 ensures a stable connection between the slider 32 and the base body 20 and a stable guided displacement of the slider 32 in relation to the base body 20, parallel to the axes of symmetry S, S1. As regards the seats for rotation 30, 31 , each of them is formed by means of a curved cavity which extends over a circle segment which subtends an angle of about 115°.
Between the two seats for rotation 30, 31 , along the axis of rotation X, the base body 20 includes a substantially disc-shaped central element 129; on the periphery of the seats for rotation 30, 31 , the base body 20 includes an outer circular rim 130 which partially coincides with the aforementioned bridge element 127 and is connected on opposite sides to the central element 129 by means of connecting appendages 131a, 131b.
Moreover it is pointed out that, along the longitudinal axis S1, each seat 30, 31 widens out within the outer circular rim 130 in the form of a respective curved recess 128a, 128b. The two recesses 128a, 128b are substantially aligned along said longitudinal axis S' and are symmetrical with respect thereto. Each recess 128a, 128b defines within the base body 20 two retaining walls 140, 141 which are respectively arranged on diametrically opposite sides of the central element 129 and therefore in relation to the axis of rotation X. In particular, in order to allow insertion of the curved projections 26, 28 of the movable body 24 inside the respective seat for rotation 30, 31, the slider 32 is retracted towards the first bottom side 226a of the seat 126 so that the spring element 32b is compressed and deformed against the first side 226a of the seat 126, causing flexing of the two arms 132a, 132b. Retraction of the slider 32 is performed manually by the user by operating the grip element 103.
In this condition, the engagement element 32a frees part of the seat for rotation 31 and allows insertion of the curved projections 26, 28.
In particular, the L-shaped wings of the two curved projections 26, 28 are housed inside the recesses 128a, 128b of the seats for rotation 30, 31. Then the slider 32 is released from the retracted position, so that the spring element 32b returns elastically into the initial condition (i.e. the undeformed or less deformed condition) and pushes the slider 32 towards the seat for rotation 31 , until the shoulders 100a, 101a of the slider come into abutment against the respective inclined surfaces 326c, 326d. Therefore, the engagement element 32a surmounts with the end appendage 133 the curved projection 28 which is located in the seat 31, in particular inside the recess 128b. In other words, the end appendage 133 is arranged between the curved projection 28 and the plane of the visor 16. In this way, extraction of the curved projection 28 from the seat for rotation 31 is prevented and the connection between the movable body 24 (fixed to the visor 16) and the base body 20 (fixed to the shell 14) is ensured.
By then rotating the visor 16 in relation to the shell 14, the L-shaped wings of the curved projections 26, 28 pass underneath the respective retaining walls 140, 141. Removal of the movable body 24 from the base body 20 is possible by performing the steps described above in reverse order. The slider 32, which is elastically deformable, therefore allows a removable connection between the base body 20 and the movable body 24.
The movement device of the present disclosure has been described hitherto with reference to preferred embodiments thereof.
It is understood that other embodiments relating to the same inventive concept may exist, all of these falling within the scope of protection of the claims which are provided hereinbelow.

Claims

1. A movement device (10) for a helmet (12) for moving a first element (16) of the helmet (12) in relation to a second element (14) of the helmet (12), wherein said movement device (10) includes a movable body (24) apt to be fixedly associated with the first element (16), a base body (20) apt to be fixedly associated with the second element (14), an interaction element (35) associated with the movable body (24) and an interaction counter-element (36, 136, 236) associated with the base body (20), wherein said interaction element (35) and said interaction counter- element (36, 136, 236) are able to mutually interact for holding, in at least one given position, the movable body (24) in relation to the base body (20), and wherein at least one of said interaction element (35) and said interaction counter-element (36, 136, 236) is structurally independent from the movable body (24) or the base body (20) with which it is associated.
2. The movement device (10) according to claim 1, wherein said at least one of said interaction element (35) and said interaction counter-element (36, 136, 236) is apt to be detached from the movable body (24) or from the base body (20) with which it is associated, for replacement by another interaction element (35) and/or interaction counter-element (36, 136, 236), respectively.
3. The movement device (10), wherein said at least one of said interaction element (35) and said interaction counter-element (36, 136, 236) is detachable from the movable body (24) or from the base body (20) with which it is associated, without having to remove the movable body (24) or the base body (20).
4. The movement device (10) according to any one of the preceding claims 1 to 3, wherein said at least one of said interaction element (35) and said interaction counter-element (36, 136, 236) is detachable, by means of elastic deformation of the material, from the movable body (24) or from the base body (20) with which it is associated.
5. The movement device (10) according to any one of the preceding claims, wherein the interaction element (35) includes a stud (38) and the interaction counter-element (36, 136, 236) has a profile (39, 139, 239), wherein said stud (38) is apt to be arranged in pressing contact against the profile (39, 139, 239) of the interaction counter-element (36, 136, 236).
6. The movement device (10) according to claim 5, wherein the interaction counter- element (36, 236) comprises a plurality of depressions (50, 250) and humps (51 , 251) with a preset projection, arranged along said contact profile (39, 239).
7. The movement device (10) according to any one of the preceding claims, wherein the interaction counter-element (136) has a smooth contact profile (139).
8. The movement device (10) according to any one of the preceding claims, wherein the movable body (24) is movable between a start-of-travel position and an end-of- travel position.
9. The movement device (10) according to claim 8 when dependent on claim 5, wherein said interaction counter-element (36, 136, 236) comprises two recesses (47, 48; 147, 148; 247, 248) apt to receive the stud (38) in the start-of-travel position and at the end-of-travel position of the movable body (24), respectively.
10. The movement device (10) according to any one of the preceding claims, wherein, during a movement of said movable body (24), said interaction element
(35) and/or said interaction counter-element (36, 136, 236) are apt to undergo an elastic deformation.
11. The movement device (10) according to any one of the preceding claims, wherein said movable body (24) is able to move with a rotational movement about a given axis (X) in relation to the base body (20), and wherein said movable body (24) is at least partially overlapped on said base body (20) and comprises a rotational shaft (25) rotatably housed in a corresponding seat for rotation (30, 31) of the base body (20).
12. The movement device (10) according to any one of the preceding claims, in combination with claims 5 and 11 , wherein said stud (38) is associated with said movable body (24), and wherein said stud (38) and said rotational shaft (25) are arranged at a set mutual distance and have the same orientation towards said base body (20) and have axes (X, Y) parallel to each other.
13. The movement device (10) according to claim 12, wherein the interaction counter-element (36, 136, 236) is arranged between the rotational shaft (25) and the stud (38).
14. The movement device (10) according to any one of the preceding claims, including a slider (32) for the engagement of said movable body (24) with said base body (20), said slider (32) being elastically deformable.
15. A kit comprising a movement device (10) according to any one of the preceding claims, and an assortment of interaction elements (35) and/or of interaction counter- elements (36, 136, 236).
16. The kit according to claim 15, wherein at least some of the interaction elements (35) of the assortment are different from each other and/or at least some of the interaction counter-elements (36, 136, 236) of the assortment differ from each other.
17. The kit according to claim 16, wherein said some of the interaction elements (35) in the assortment differ from each other in terms of geometry, thickness or material, or a combination of these features and/or said some of the interaction counter-elements (36, 136, 236) of the assortment differ from each other in terms of geometry, thickness or material, or a combination of these features.
18. A helmet (12) including a movement device (10) according to any one of the preceding claims 1 to 14.
19. The helmet including a kit according to any one of claims 15 to 17.
20. The helmet according to claim 18 or 19, including a protective shell (14) and a visor (16), wherein said visor (16) is said first element and said shell (14) is said second element.
21. The helmet (12) according to claims 18, 19 or 20, wherein said movable body (24) is formed as one piece with said first element (16).
22. A method for customizing the movement of a first element (16) of a helmet in relation to a second element (14) of the helmet, said method comprising the steps of:
- associating a movable body (24) with the first element (16),
- associating a base body (20) with the second element (14),
- associating an interaction element (35) with the movable body (24) - associating an interaction counter-element (36, 136, 236) with the base body (20), wherein said interaction element (35) and interaction counter-element (36, 136, 236) interact during a movement of the movable body (24) in relation to the base body (20),
- removing said interaction element (35) and/or said interaction counter-element (36, 136, 236) from the movable body (24) or the base body (20) with which they are/it is associated, and replacing them/it with another interaction element (35) and/or with another interaction counter-element (36, 136, 236), respectively.
23. The method according to claim 22, comprising, prior to the step of replacing said interaction element (35) and/or said interaction counter-element (36, 136, 236), the step of selecting interaction elements (35) and/or interaction counter-elements (36, 136, 236) from a respective assortment of interaction elements (35) and/or interaction counter-elements (36, 136, 236).
24. The method according to claim 21 or 22, said method being applied to the customization of a movement of a visor (16) in relation to a protective shell (14) of a helmet (12).
EP10731571.5A 2009-05-19 2010-05-19 Movement device for a helmet for moving a first element of the helmet in relation to a second element of the helmet Active EP2432341B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000070A ITVR20090070A1 (en) 2009-05-19 2009-05-19 HANDLING DEVICE FOR A HELMET TO MOVE A FIRST ELEMENT OF THE HELMET COMPARED TO A SECOND HELMET ELEMENT
PCT/IB2010/052223 WO2010134030A1 (en) 2009-05-19 2010-05-19 Movement device for a helmet for moving a first element o the helmet in relation to a second element of the helmet

Publications (2)

Publication Number Publication Date
EP2432341A1 true EP2432341A1 (en) 2012-03-28
EP2432341B1 EP2432341B1 (en) 2013-04-24

Family

ID=41475230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10731571.5A Active EP2432341B1 (en) 2009-05-19 2010-05-19 Movement device for a helmet for moving a first element of the helmet in relation to a second element of the helmet

Country Status (4)

Country Link
EP (1) EP2432341B1 (en)
ES (1) ES2424482T3 (en)
IT (1) ITVR20090070A1 (en)
WO (1) WO2010134030A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074072A (en) * 1959-03-30 1963-01-22 Edwards George Zahnor Mechanism for mounting a welding shield on headgear
JPH0660444B2 (en) * 1987-06-09 1994-08-10 理夫 新井 Shield mounting structure for helmet
JPH0418105A (en) * 1990-05-10 1992-01-22 Yamaha Motor Co Ltd Opening and closing system of shield of helmet
IT1316350B1 (en) * 2000-02-07 2003-04-10 Antonio Locatelli OPENABLE FULL FACE HELMET
JP4656756B2 (en) * 2001-05-18 2011-03-23 株式会社Shoei Helmet shield plate control device
US7814579B2 (en) * 2004-09-27 2010-10-19 Kbc America, Inc. Modular helmet
ITMI20051839A1 (en) * 2005-09-30 2007-04-01 Opticos Srl MONITORING CONTROL OF THE POSITION OF A VISOR FOR PROTECTIVE HELMETS
US8069499B2 (en) * 2006-05-15 2011-12-06 Shoei Co., Ltd. Helmet shield attaching mechanism, and helmet attached with the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010134030A1 *

Also Published As

Publication number Publication date
WO2010134030A1 (en) 2010-11-25
ITVR20090070A1 (en) 2010-11-20
ES2424482T3 (en) 2013-10-02
EP2432341B1 (en) 2013-04-24

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