巴西专利BR102012001014B1 safety helmet

专利PDF首页>>巴西专利

专利附录

专利说明

权利要求

类似技术

同族专利

引用文献

法律状态

优先权

专利摘要:
SAFETY HELMET. Safety helmet, of the type comprising an external hull (2), provided with a front opening (3), coupled with an internal hull (26) made of shock-absorbing material, at least one anti-glare visor (4) attached to the said external hull (2) and movable between at least one engagement position with said front opening (3) and a release position of the latter, and an operational portion (8a) of said anti-glare visor (4), integrated with the latter , and controlled, through at least one movement transmission cable (14) by a slider (18), slidingly, coupled to a corresponding guide (17) fixed to the external hull (2). This slider (18) being manually switched between an inactive position where the anti-glare visor (4) is arranged in its release position, and an active position in which the anti-glare visor (4) is arranged in at least one engaging position. Conveniently, the aforementioned motion transmission cable (14) has one end (15) integrated with the outer hull (2) and the other end (16) integrated with the slider (18), and engaged with at least one driver (13) fixed to the operational portion (8a) of the anti-glare visor (4), to move the latter.
公开号:BR102012001014B1
申请号:R102012001014-3
申请日:2012-01-16
公开日:2020-10-20
发明作者:Luca Gafforio；Alberto Salvetti；Gabriele Tomasoni
申请人:Opticos S.R.L；
IPC主号:

专利说明:

[0001] The present invention relates to a safety helmet, in particular, for motorcyclists or for users of other means of transport, of the type comprising an external hull made of substantially rigid material, such as polycarbonate, and provided with an opening front, an inner shell made of shock-absorbing material, such as expanded polystyrene, an inner cover for greater user comfort, usually made of rubber foam covered with fabric, and at least one anti-glare visor ("anti-dazzle" ), which reversibly engages the aforementioned front opening of said helmet. It is known in the art to provide safety helmets for vehicle users, such as motorcycles, or snowmobiles ("snowmobiles"), with an anti-glare, normally polished ("burnished") visor, or in any way, produced in such a way to filter the external light, which is pivoted, or attached to the external hull, and which, due to an appropriate operational mechanism, is movable between a position of engagement of the front opening of the helmet, that is, to protect the user's vision, and a opening position of the opening.
[0002] More particularly, it is known to produce a safety helmet comprising an outer shell made of rigid synthetic material, integrally coupled to a complementary inner shell, made of a shock-absorbing material, generally an expanded material, in turn associated with a cover for the user's comfort, which is shaped in such a way that it has a front opening that allows the user to see, and a lower opening to allow the helmet to be placed.
[0003] As is known, in some safety helmets known as "open face" helmets, the two openings mentioned above are connected to each other without interruption, while in other helmets, they are separated from each other by a specific portion of the outer shell, arranged in the user's chin area, and consequently called a "cheese guard". In the latter case, the production of the chin guard integrated with the remaining portion of the outer hull, results in helmets produced, which are known as "closed" ("full face"), while the production of a chin guard that is pivoted , or in any case, fixed with at least a degree of freedom, to the outer hull, and which can therefore generally be raised in relation to the latter, defines the helmets known as "closed and retractable" ("flip-up full" facial").
[0004] In any case, regardless of the type of safety helmet considered, it is known to be attached to the outer hull, or, optionally, to extensions of the chin guard, when this is the type that can be moved upwards, a visor for the protection of the user's face, which reversibly covers the aforementioned front opening, and in some cases, this is known to attach an anti-glare visor to the outer hull, intended to engage, at least in part of the field of view of user.
[0005] The anti-glare visor is usually fixed to the outer hull by means of an operational mechanism that allows the user, through a specific manual control, to move the visor in relation to the outer hull to engage or disengage in the front opening of the helmet with the visor. anti-glare.
[0006] In this sense, there are several different operational mechanisms of the anti-glare visor, which allow the user to switch, quickly and easily, from the aforementioned anti-glare visor engagement position, normally coinciding with a lowered position in relation to the external hull, the a disengagement position, usually coinciding with a raised position in relation to the outer hull, and vice versa.
[0007] In fact, it is essential for the person wearing the helmet to be able, during the trip, to move the anti-glare visor quickly and with simple manual movements, from its position of covering the user's field of vision, that is, engaged. with the front opening of the helmet, for its position out of the user's field of vision, that is, disengaged from the front opening, when there are sudden changes in ambient light conditions, for example, when entering and leaving a tunnel.
[0008] It should be noted that, above all, when changing the engagement position, from the anti-glare visor, with the front opening of the helmet to the release position of the anti-glare visor, or vice versa, the speed with which this change occurs is particularly critical.
[0009] It is also essential for the anti-glare visor, once arranged in the most appropriate position by the user, to remain firmly in this position and not to accidentally move to the opposite position, for example, due to vibrations or light shocks to which the helmet is submitted.
[0010] This requirement is particularly important in the case where the user uses the safety helmet provided with the anti-glare visor to drive a vehicle at night or drive a vehicle in poor ambient light conditions, or in cases where the anti-glare visor it is arranged by the user in the raised release position of the front opening of the helmet. In fact, in these cases, accidental lowering, due to vibrations or shocks, from the anti-glare visor to the engagement position with the front opening of the helmet, can cause effective problems to the user when driving the vehicle.
[0011] The operating mechanism of the anti-glare visor is, therefore, necessary to ensure, even when there are slight vibrations and shocks, that it remains firmly, at least, in the raised position of the anti-glare visor, after it has been arranged in this position by the user.
[0012] Among the operating mechanisms of the anti-glare visor of known safety helmets, those mechanisms that use cables to transmit the movement from a slider (cursor), which can be operated manually by the user, to the visor. anti-glare, are particularly effective and structurally simple.
[0013] The international patent application WO 2006/037294 Al, filed by Schuberth Engineering AG, describes an operational mechanism for an anti-glare visor comprising two Bowden cables, that is, cables capable of transmitting forces and movements by pushing and pulling, which have a the end of the same connected to at least one slider, sliding inside a guide integrated with the outer shell of the helmet, and the other end of the same, connected, respectively, the operational side portions of the anti-glare visor. The operation of the slider, by the user, causes, due to the Bowden cables, to transmit the movement from the slider to the anti-glare visor, which is therefore induced to move from a position covering the corresponding field of view. from a lowered position, to a position outside the field of view, corresponding to a raised position, and vice versa.
[0014] Although structurally simple this operational mechanism for the anti-glare visor on the one hand proves to be relatively ineffective, given that the speed with which the anti-glare visor moves from its engaging position to its disengaging position is left to the user's manual speed , and on the other hand, the force required by the user to move the slider, given the presence of the Bowden cables, is substantially equivalent to the force required to raise or lower the anti-glare visor, and can therefore represent a possible obstacle to rapid visor operation.
[0015] The international patent application WO 2010/066278 Al, filed by Lazer SA, refers to an operational mechanism for raising or lowering an anti-glare visor of a safety helmet comprising a cable, of the flexible or Bowden type, extending between a slider of a visor, in turn sliding inside a corresponding guide integrated to the helmet's external hull, and a cursor, attached to two arms of two respective levers, which are in turn integral with the extreme lateral portions of the anti-glare visor mentioned above, to cause its raising or lowering in relation to the external hull and the corresponding frontal opening.
[0016] The manual movement of the slider inside its guide causes, through the movement transmission cable and the kinematic mechanism composed of the slider and the two levers, moving the anti-glare visor from its lowered position, that is, covering the the user's field of view, to their raised position, that is, outside the field of view, and vice versa.
[0017] Although this operational mechanism was designed to allow the user to apply relatively low forces, in order to operate the anti-glare visor, due to the presence of the two levers employed, it still has a certain degree of structural complexity and also its assembly is complicated and difficult.
[0018] Furthermore, although the operational mechanism of the anti-glare visor described in WO 2010/066278 Al allows the anti-glare visor to be operated, exerting a limited force on the corresponding slider, it is not provided with specific technical means to quickly lift the latter. if necessary, and there does not appear to be any mechanism to ensure that the anti-glare visor remains stable in its raised position, disengaged from the front opening of the helmet.
[0019] Although the German utility model DE U 8534132, deposited by Witzmann, does not explicitly refer to a helmet provided with an anti-glare visor, it describes a mechanism for raising and lowering the protective visor in relation to the front opening of the hull, which includes the use of two flexible movement transmission cables, coupled in a functional way, to a slider and, respectively, at the lower lateral ends of the visor that act according to the operation portions of the latter. The helmet also comprises elastic return means, which, interposed in a functional way, between the external hull and the visor, are built to push the visor in its raised position, that is, detached from the front opening of the helmet.
[0020] The slider that slidably engages, within a step guide adapted to provide a plurality of stable holding positions for the slider, can be operated by the user in order to lower the visor in opposition to the action of the aforementioned means of elastic return.
[0021] Although this operational mechanism of the visor ensures, considerably, the quick lifting of the visor, it suffers from the same inconveniences already presented in relation to the international patent application WO 2006/037294 Al, as the application force to the slider, given the direct transmission of forces from the slider to the visor must be equivalent to the force required to raise or lower the visor.
[0022] An object of the present invention is, therefore, to provide a safety helmet of the type comprising an anti-glare visor, provided with an operational mechanism of the latter, which does not have the drawbacks of the state of the art presented above.
[0023] The objective of the present invention is, therefore, to produce a safety helmet provided with a movable anti-glare visor between at least one engagement position with the front opening of the corresponding external hull and, a disengagement position from there, and comprising a cable for transmitting movement from a slider, sliding on a guide integrated into the helmet's outer hull, and an operational portion of the anti-glare visor, which is structurally simple and at the same time allowing the anti-glare visor to be moved through the use of limited force on the slider.
[0024] An additional objective of the present invention is to provide a safety helmet of the type indicated above which, in addition to the features mentioned above, is also considerably safe for use and which, in particular, prevents the anti-glare visor from being accidentally moved from its disengagement position from the front opening of the helmet, after being placed in that position by the user, due to vibrations, even slight shocks, or other accidental causes.
[0025] These and other objectives are achieved through the safety helmet according to the first independent claim and the subsequent dependent claims.
[0026] The safety helmet according to the present invention comprises an external hull, provided with a frontal opening and coupled to a corresponding internal hull made of shock-absorbing material, and at least one anti-glare visor fixed to the external and movable hull between at least one engagement position with the front opening, and at least one disengagement position of the latter, an operational portion of the anti-glare visor, integrated with the latter, and controlled by means of at least one motion transmission cable, through a slider, slidingly, coupled to a corresponding guide fixed to the outer hull, and where the slider can be manually moved between an inactive position, in which the anti-glare visor is arranged in its disengaged position, and a position active, in which the anti-glare visor is arranged in its engaged position. Advantageously, the motion transmission cable has one end integrated, directly or indirectly, with the outer hull, and the other end integrated with the slider, and engaging with at least one (transmission) driver fixed to the operational portion of the anti-glare visor. , in such a way as to move integrally with the latter, to move the operational portion of the anti-glare visor.
[0027] As will be understood by the technicians in the subject, the use of an actuator, preferably constituted by a pulley, or by a pulley, in which the movement transmission cable is coupled, surrounding it, allows a decrease in the force for apply to the slider to move the anti-glare visor from its disengaged position with the front opening of the outer hull, to an engaged position with the latter.
[0028] It should be noted that the term "actuator" is intended for any structural element intended to engage with the aforementioned operational cable to transmit any movement to which the cable is subjected, from the cable to the operational portion with which the driver is integrated. This driver can therefore be an integrated shaft with the operational portion, or a mobile pulley or pulley, fixed to the operational portion of the anti-glare visor, etc.
[0029] In fact, it is useful to remember that, in the case of a mobile pulley or pulley, supporting a certain load (that is, in this case, the weight of the anti-glare visor, if necessary, with the addition of the load exerted by a spring of return, which, as will be seen below, can preferably be used) and surrounded by a rope or cable for the transmission of movement, attached to one end of it, the kinematic balance of the system in ideal conditions, requires that the force applied to the free end of the rope is in balance with the load of the pulley, or pulley, when the latter is identical to twice the force applied to said free end of the rope.
[0030] Therefore, to simplify and as it is known in mechanics, this is a kinematic mechanism comparable to a mechanical advantage ("mechanical advantage").
[0031] In accordance with a preferred aspect of the present invention, the safety helmet is also provided with elastic return means acting directly, or indirectly, on the anti-glare visor to push it towards the aforementioned disengagement position.
[0032] As will be evident to the technicians in the subject, the use of these elastic return means allows the anti-glare visor to be effectively maintained in its raised position, that is, disengaged from the front opening of the helmet, once the position has been established by the also in the case of accidental vibrations and shocks to which the safety helmet may be subject.
[0033] In addition, the presence of the elastic return means mentioned above, preferably constituted by a spring fixed between the outer hull and the anti-glare visor, allows the anti-glare visor to be automatically returned to its disengagement position from the front opening of the external hull (that is, out of the user's field of view), when, as will be seen, the user intends to operate the specific temporary retention means of the slider, releasing them.
[0034] In fact, according to another aspect of the present invention, the safety helmet also comprises temporary retention means, manually operated from the slider, which act on the slider when it is arranged in its active position mentioned above, retaining it in this position.
[0035] Particularly, in a preferred embodiment of the present invention, these temporary retention means comprise a body, preferably constituted by a lever provided with a stop pawl, which moves between a locked position in engagement with the slider, suitably provided with at least one seat to temporarily engage with said locking tab, and an unlocked release position of said slider. This movable body is also elastically pushed towards its locked position, that is, towards its position in which the locking tongue, if present, is engaged with the corresponding seat made in the slider.
[0036] It should be noted that, in another embodiment of the present invention, the slider may comprise two or more seats for said elastic lever locking tongue, which preferably constitutes said temporary retention means.
[0037] Some embodiments of the present invention will now be described, purely by way of example, non-limiting, with reference to the attached figures, where:
[0038] Figure 1 is a partial side view of a safety helmet according to a particular aspect of the present invention, with an anti-glare visor in a disengaged position from the front opening of the outer hull;
[0039] Figure 2a is a partial side view of the safety helmet illustrated in figure 1, with the anti-glare visor arranged in a position engaged with the front opening of the outer hull, that is, at least partially covering the user's field of vision ;
[0040] Figure 2b is a side sectional view of the safety helmet of figure 1, illustrated in the same position shown in figure 2a;
[0041] Figure 3 is an exploded perspective view of the anti-glare visor and part of the corresponding operating mechanism of the safety helmet in Figures 1 and 2;
[0042] Figure 4 is a schematic side view of the anti-glare visor and part of the corresponding operating mechanism of the safety helmet of Figures 1 and 2, illustrated in its disengaged position from the front opening of the external hull;
[0043] Figure 5 is a schematic side view of the anti-glare visor and part of the corresponding operating mechanism of the safety helmet of figure 4, illustrated in its position engaged with the front opening of the external hull;
[0044] Figures 6a-6c illustrate, in a partial side view, the slider and the corresponding temporary retention means, for the operation of the anti-glare visor, according to a particular aspect of the present invention, illustrated in different operational positions; and
[0045] Figure 7 illustrates, in a partial side view, the slider and the corresponding temporary retention means, for the operation of the anti-glare visor, in a different embodiment of the present invention. First with reference to figures 1 and 2, the safety helmet 1, according to a particular aspect of the present invention, comprises an external hull 2, generally made of polycarbonate, or also of other thermoplastic resins, such as ABS or also with materials composites, provided with a lower opening 28 to allow the helmet 1 to be placed, and a frontal opening 3, through which the user's field of vision extends.
[0046] As is particularly visible in figure 2b, the safety helmet 1 also comprises an internal hull 26, made of a material suitable for absorbing any shocks, such as expanded polystyrene (EPS), and a cover which interfaces between the hull inner 26 and the user's head, not shown, intended to be fixed, generally removably, on the inner surface 27 of this inner shell 26. This interfacing cover, according to the prior art, can be made of rubber foam covered with a specific fabric, and has the purpose of improving the comfort of the user when wearing the helmet.
[0047] It should be noted that the safety helmet 1 of figures 1, 2a, 2b, used here to illustrate the invention claimed here, is not provided with a "chin guard", that is, the portion of the helmet intended for protect the user's chin, provided in closed or closed and retractable helmets. However, as will be apparent to those skilled in the art, the present invention can also be applied to helmets equipped with a chin guard integrated with the outer hull, to helmets with a hinged chin guard, or also helmets with removable chin guard , without the need for any special adaptation.
[0048] The safety helmet 1 illustrated here, according to the prior art, may comprise a protective visor (not shown in the figures), substantially transparent, and intended to move between a position in which it covers the aforementioned front opening 3 of the safety helmet 1 and, a position in which, on the contrary, it is disengaged from this front opening 3. This protective visor can be pivoted, or in any way, fixed with at least a degree of freedom, to the external hull 2 of the safety helmet 1, on the sides of the corresponding front opening 3, or, in other embodiments of the safety helmet 1, not shown here, can be pivoted, or in any case, fixed, to a movable chin guard, with which , helmet 1 can optionally be provided.
[0049] The safety helmet 1 also comprises an anti-glare visor 4, polished or in any way capable of filtering the light, which, through a corresponding operating mechanism, can be moved by the user from a engaged position, although partial , with the front opening 3 (shown in figures 2a and 2b), corresponding to a position - lowered - covering the user's field of vision, to a disengagement position from this opening 3 (shown in figure 1), corresponding to a position - raised - out of the user's field of vision.
[0050] It should be noted that, in the particular embodiment of the safety helmet 1 illustrated in figures 1, 2a and 2b, a seat 128, or recess, is preferably made between the outer shell 2 and the inner shell 26, within the which the anti-glare visor 4 is housed, when the latter is moved by the user in its release position from the front opening 3. According to this solution, the transparent protective visor (not shown) would be arranged on top of the anti-glare visor 4 , that is, in a position more distant from the frontal opening 3 of the external hull 2 in relation to the anti-glare visor 4 and, preferably, from the external side of the external hull 2.
[0051] It should be noted that other embodiments of the safety helmet 1 described here, may provide for the use of an anti-glare visor 4 located on the outside of the protective visor, or in the absence of a recess for the housing of the anti-glare visor, or that they do not have a protective visor, they are also provided for, as included in the protection scope defined by the attached claims.
[0052] With reference now also to figures 3, 4 and 5, the anti-glare visor 4 according to a particular aspect of the present invention, comprises a central region, capable of filtering the light in a pre-defined manner, and two lateral ends 5a, 5b, U-shaped and intended to engage in an integrated manner, for example, by locking or by juxtaposition of parts, respectively, with a first operational lateral support 8a, on one side of the outer hull 2 in relation to the front opening 3, and with a second lateral support 8b, on the other side of the outer hull 2 in relation to the front opening 3.
[0053] Both side supports 8a, 8b comprise a seat for coupling in rotation, on a corresponding axis, with guides ("jigs") of interface, integrally fixed to the external hull 2, or made in one piece with the same, in such a way that the anti-glare visor 4 is, therefore, pivoted at its lateral ends 5a, 5b, through the interpositioning of the lateral supports 8a, 8b, mentioned above, with the outer hull 2.
[0054] In particular, the first operational side support 8a, integrated with the lateral end 5a of the anti-glare visor 4, comprises an orifice 10 intended to engage with a corresponding axis 7b, projecting from a mounting support 6b, for example, made of plastic material, intended to be integrally fixed to the outer shell 2 of the safety helmet 1. The region formed 6a of the inner surface of the outer shell 2, is constructed to be coupled with the support 6b, for example, through a screw or a grub screw, and thus retain the side mounting bracket 8a in the correct position. In practice, the first operational side support 8a of the anti-glare visor 4 is rotatably retained to the external hull 2, in a lateral position in relation to the front opening 3 of the safety helmet 1, through the mounting bracket 6b which is screwed to this formed region 6a, rotatingly fixing the operational side support 8a, interposed between the support 6b and the formed region 6a.
[0055] It should be noted that, in the particular embodiment of the safety helmet 1 illustrated here, the formed region 6a also comprises a projecting seat 7a for the rotation of a protective visor (not shown), or of an articulated chin protector, for the safety helmet 1.
[0056] With respect to the second side support 8b, it is simply pivoted, for example, by means of a screw or a pin, to a corresponding region, not shown, on the inner surface of the outer shell 2 of the safety helmet 1, opposite to formed region 6a in relation to the front opening 3, in order to allow the rotation of the anti-glare visor 4 in relation to the external hull 2.
[0057] It should be noted that, although the fixation provided in the safety helmet 1 for the anti-glare visor 4 is a rotating type fixation, by pivoting the visor 4 to the outer hull 2, any other type of fixation, for example, of the "shoe" seat frame type, with a slider inside a corresponding guide, can alternatively be provided to fix the anti-glare visor 4 to the external hull 2, provided that this fixation allows the movement of the anti-glare visor 4 between its positions, mentioned above, to engage with and disengage the front opening 3 of the outer hull 2.
[0058] The operational side support 8a of the anti-glare visor 4, which, being integrated, constitutes an operational portion of the anti-glare visor 4, is constructed, in the particular embodiment of the invention illustrated here, in the form of a lever with two arms 9, 22, geometrically opposed to each other with respect to the above-mentioned hole 10 for the pivoting of the lateral support 8a.
[0059] One of the two arms 9 of the lateral support 8a, the one that in the attached figures is facing the lower portion of the outer hull 2, that is, facing the lower opening 28 of the safety helmet 1, comprises a seat 12 that houses an actuator 13, in the form of a disc-shaped pulley, with a central axis of rotation, for a theoretically inextensible cable 14, intended to transmit the movement from a slider 18 to the arm 9 of the operational side support 8a of the visor anti-glare 4, and therefore for the latter.
[0060] It should be noted that, despite an embodiment of the safety helmet 1, in which the arm 9 of the operational side support 8a is confronted with the lower opening 28 of the safety helmet 1 illustrated here, alternative embodiments of the latter, in which the arm 9 of the lateral support 8a is arranged towards the upper portion of the outer hull 2, that is, in a position opposite to that shown here, they are also possible, without departing from the scope of protection required for the present invention.
[0061] The cable 14, preferably consisting of flexible steel wires surrounded by a protective cover 29 made of plastic material, comprises a first end 15 fixed to the outer hull 2 through the support 6b, or in any case, integrally fixed to the hull external 2, and a second end 16, fixed to a slider 18, which can be operated manually by the user, which slides along a linear guide, not necessarily straight, 17, also integrated to the external hull 2.
[0062] The protective cover 29 is also fixedly fixed, at its ends (end-cover), respectively to the support 6b and the guide 17, in order to keep its disposition unchanged inside the safety helmet 1 and, in this way, allows cable 14 to move along a predetermined path.
[0063] As can be seen in figures 1, 2a and 2b, this guide 17, preferably curvilinear, is integrally arranged on a lower lateral edge of the outer hull 2, on the side of the opening of the safety helmet 1 for the user's head, in order to facilitate access to the slider 18 by the user.
[0064] The cable 14 also involves the pulley 13, being configured in a "U" around it, in such a way that the sliding of the slider 18 along the guide 17, at least in one direction, causes the pulley to move 13 and, therefore, rotating the latter to the support 8a, of the anti-glare visor 4.
[0065] It should be noted that, although a cable 14 made of flexible metallic material has been described here, it would be equally possible to use any other type of cable or rope, capable of transmitting movement, at least in a sliding direction of the slider 18, from the slider 18 to the sheave 13, or to another equivalent type of actuator, and therefore to the operational side support 8a, and to the anti-glare visor 4. The number of movement transmission cables can also be varied from according to requirements.
[0066] Alternatively, the flexible cable 14 can be replaced by one or more Bowden cables, capable of transmitting the movement of the slider 18 to one or more actuators, in both sliding directions of the slider 18 along the corresponding linear guide 17 However, in this case the Bowden cable or cables must be attached, for example, to at least two actuators, which move integrally with the operational side support 8a, to be able to transmit the movement coming from the slider 18 in both the directions. The slider 18 and the corresponding guide 17, in particular, are constructed in such a way that the slider 18 can assume, along the guide 17, a first active position, in which the anti-glare visor 4, through the kinematic mechanism constituted by the cable 14, by the sheave 13 and the side support 8a, is arranged in its engaging position with the front opening 3 of the safety helmet 1, and a second inactive position corresponding to the above-mentioned disengagement position of the anti-glare visor 4 from the front opening. 3.
[0067] As can be seen in the figures, the inactive position of the slider 18 coincides, in the embodiment described here, with the rear stop of the linear guide 17, while its active position substantially coincides with the front stop of the guide 17.
[0068] According to a preferred aspect of the present invention, in case the cable 14 is a flexible metal cable, capable of transmitting the movement passed to the slider 18 only in its direction of traction, and therefore in helmet 1 illustrated here , only when the slider 18 is moved towards its active position, the inactive position of the slider 18 is obtained through the presence of elastic return means 11 for the anti-glare visor 4, which act directly or indirectly on the latter, to return it to its disengaged position and, thus, to return the slider 18 to its inactive position mentioned above.
[0069] In this way, the other arm 22 of the side support 8a of the anti-glare visor 4, in the particular embodiment of the present invention illustrated here, is coupled to the elastic return means 11, functionally interposed between the arm 22 and the outer hull 2, and in this particular case, constituted by a cylindrical helical spring 11, whose ends are, respectively, pivoted to the arm 22 of the lateral support 8a and, through a pin 23 (see figures 4 and 5), to the support 6b, in turn integrally attached to the outer hull 2.
[0070] The spring 11, which is extended from its initial resting configuration when the anti-glare visor 4 is arranged in its lowered engaging position with the front opening 3 of helmet 1 (figure 5), and therefore, when the slider 18 is in its active position, it acts by returning to its resting position, returning the anti-glare visor 4 to its raised release position (Figure 4), and, therefore, returning the slider 18 through the side support 8a , pulley 13, and cable 14, to their inactive position.
[0071] In practice, the movement of the slider 18 along the guide 17 in the direction of fractionation of the cable 14 by the slider 18 (that is, from right to left in figure 3), through the fixation with the end 16 of the cable 14 and the fact that the latter is integrated with the outer hull 2 by means of its other end 15, although opposed by the spring 11, causes the movement of the sheave 13 and, therefore, the anti-glare visor 4 from a raised position to a lowered position, until the slider 18 reaches its stop positioned along the guide 17. In this position of the slider 18, here defined as the active position, the anti-glare visor 4 is in its lowered position and coupled with the front opening 3 of the helmet 1 .
[0072] The movement of the slider 18 along the guide 17 in the opposite direction to the fractioning direction of the cable 14 by the slider 18 (that is, in the direction that runs from left to right in figure 3), is the opposite caused by the spring 11, which has a pulling action on the cable 14 by means of the pulley 13, returning the slider 18 towards its inactive position mentioned above, which, as determined, corresponds to the release position of the anti-glare visor 4 from front opening 3 of helmet 1.
[0073] It should be noted that, although the use of a spring, or other elastic return means 11, interposed between the arm 22 of the side support 8a of the anti-glare visor 4 and the pin 23 of the corresponding support 6b, integrated with the hull external 2, any other arrangement of these elastic means 11 has been described, which allows the slider 18 to be returned to the above-mentioned inactive position, and, consequently, to its raised release position from the front opening 3 of the safety helmet 1, can alternatively be used.
[0074] Figures 4 and 5 illustrate, respectively, as already mentioned, the arrangement of the slider 18 along the guide 17, the corresponding configuration of the cable 14, and the corresponding arrangement of the sheave 13, the lateral support 8a, and the spring 11, when the anti-glare visor 4 is in the lowered position, engaging with said front opening 3.
[0075] With reference now to figures 6a-6c, the safety helmet 1, according to a particular aspect of the present invention, also comprises temporary retention means manually operated 20, 21, 24, 25 of the slider 18, which act on the slider 18 when it is in its active position, corresponding to the lowered position, coupling with the front opening 3 of the helmet 1, of the anti-glare visor 4.
[0076] These temporary retention means, in the embodiment of the present invention illustrated in figures 6a-6c, comprise a lever 20, pivoted through an axis 21 at a stop end of the linear guide 17, and provided with a locking tongue 25 , formed to engage with at least one seat 19 made on the slider 18, to lock the latter in the retention.
[0077] This lever 20 is also subjected to the thrust force of a spring 24, interposed between the lever 20 and the guide 17, or in any way, between the lever 20 and the outer hull 2, which it is intended to push the locking tab 25 towards the locked position in engagement with the seat 19.
[0078] The lever 20 is also provided with an arm, opposite the locking tab 25 in relation to the axis 21, susceptible of being manually operated by the user and constructed in such a way that its attraction, in opposition to the force exerted by the spring 24, it allows the temporary disengagement of the locking tab 25 of the seat 19 and, consequently, the release of the slider 18.
[0079] As can be seen particularly in figure 6c, which illustrates a side section of the slider 18, the slider 18 comprises, according to a particular aspect of the present invention, a toothed portion defining a plurality of seats 19, within of which the locking tab 25, mentioned above, can alternatively be coupled.
[0080] The presence of a plurality of seats 19 in the slider 18, spaced from each other along the direction in which the linear guide 17 extends, and therefore along the direction of movement of the slider 18, through the corresponding engagement of the locking tab 25 of the elastic lever 20 in one of these seats 19, allows the user to identify various positions of engagement of the anti-glare visor 4 with the front opening 3 of the helmet 1, so that the degree of downward movement of the visor anti-glare 4, varies according to the performance of seat 19 selected for coupling with the locking tab 25 and, consequently, in such a way that the coverage of the field of view, through the anti-glare visor 4 is the most suitable for the user's characteristics.
[0081] However, in order to simplify the production of the slider 18, according to an alternative embodiment of the present invention illustrated in figure 7, the slider 18 can comprise a single seat 19 'for coupling with the locking tongue 25 of the elastic lever 20.
[0082] Although a lever 20 provided with a locking tab 25 for the slider 18 is described above, it should be noted that any other body capable of temporarily coupling in retention with the slider 18 and, pushing elasticly in this position locked in engagement with this slider 18, and capable of reaching, through a manual thrust, a position for releasing the slider 18, it can alternatively be used in place of the aforementioned lever 20.
[0083] It should also be noted that, although the safety helmet 1 illustrated here provides for the use of temporary retention means 20, 21, 24, 25 of the slider 18, consisting of a movable body separate from the slider 18, any other means, also made in the slider 18, that is able to maintain the latter in a certain required position, optionally exceeding the return force exerted by the elastic means 11, if present, can be used alternatively.
[0084] Furthermore, in the case where, in place of the elastic return means 11, other means, not described here, are provided for the manual return of the anti-glare visor 4 to its above-mentioned disengagement position, and therefore of the slider 18 to its aforementioned inactive position, for example, through the use of a Bowden cable, or through a bracket that connects the slider 18 to the operational side support 8a, the aforementioned temporary retention means 20, 21, 24 , 25 may not be necessary.
[0085] The operation of the safety helmet 1 described above, with reference by way of example to figures 1 to 6c, is as follows.
[0086] From the raised position of the anti-glare visor 4, that is, disengaged from the latter from the front opening 3 of the outer hull 2, shown in figures 1, 4, 6a, and which aims to protect the vision of a light source considered excessive, the user can manually operate the slider 18, which is located in its inactive position of the lower stop along the guide 17, sliding this slider 18 towards its active position placed, substantially, in the front stop of this guide 17.
[0087] The movement transmitted to the slider 18 from its inactive position (right in the figures) towards its active position, that is, towards the front stop of the linear guide 17, is transmitted to the anti-glare visor 4 through of the engagement of the pulley 13 with the cable 14 which, submitted to fractionation by the slider 18 from its end 16, as can be seen from the analysis of figures 4 and 5, moves reducing the portion of it arranged in " U "around pulley 13.
[0088] Particularly, the course of the slider 18 towards its active position, causing a reduction in the segment of the cable 14 arranged in "U" around the pulley 13, causes the movement of the pulley 13, and therefore, the arm 12 of the operational side support 8a, rotating around the axis 7b (clockwise in the figures), in order to lower the anti-glare visor 4 - integrated with the support 8a - in engagement with the front opening 3 of the outer hull 2.
[0089] This rotation of the operational side support 8a, caused by the movement of the slider 18, takes the place of the return force of the opposite spring 11, which, as seen above, is built to act on the other arm 22 of the same side support 8a, extending beyond its initial resting position.
[0090] As already noted, the use of a pulley 13, or another driver, wrapped by the cable 14, properly fixed to the outer hull 2, at one of its ends 15 and fixed to the other of its ends 16 to the slider 18 , allows the anti-glare visor 4 to be moved with reduced effort by the user, on the slider 18, in relation to other prior art solutions.
[0091] After the slider 18 has been moved close to its active position, that is, after reaching the desired anti-glare visor 4 engagement position with the front opening 3 of helmet 1, the teeth of the slider 18 engage with the locking tab 25 of the elastic lever 20, which is constantly pushed towards the lock position of the slider 18 by the corresponding spring 24.
[0092] It should be noted that the proper inclination of the teeth of the slider 18 and the locking tab 25, ensures that when the slider 18 is in the vicinity of the locking tab 25, it is temporarily lifted by the inclined surface of the control tooth sliding 18, causing the lever 20 on the axis 21 to rotate in a direction (counterclockwise in the figures), to oppose the action of the spring 24, until the locking tongue 25, engaged with a seat 19, within which this latch 25 is pushed by the spring 24, which causes rotation in the opposite direction (clockwise in the figures) of the lever 20 on the axis 21.
[0093] In this position, after the displacement of the slider 18, inside the guide 17, by the user has ceased, the locking tongue 25 engages, stably, within a corresponding seat 19 of the slider 18, temporarily retained, through the action of spring 25, the slider 18 in its active position, corresponding to the desired position of engaging the anti-glare visor 4 with the front opening 3 of the helmet 1.
[0094] When the user wishes to raise the anti-glare visor 4, to its disengaged position, for example, due to a sudden change in ambient light conditions, then he / she can act on the projecting arm of lever 20, opposite the lock 25, overcoming the resistance of the spring 24, to cause a rotation (counterclockwise in the figures) of the lever 20 on the axis 21, in order to disengage the tongue 25 from the seat 19 in which it is housed.
[0095] At this point, the slider 18, no longer held by lever 20, is returned to its inactive position, corresponding to the rear stop of guide 17, through the return action exerted by spring 11 on arm 22 of the operational side support 8a of the anti-glare visor 4.
[0096] In fact, after the slider 18 has been released from the locking tab 25, the return spring 11 tends to be compressed, to return to its initial resting position, thus causing, through its fixation with the arm 22 mentioned above, a rotation of the support 8a on the corresponding pin 7b (clockwise in the figures), which takes the anti-glare visor 4 to its initial disengagement position from the front opening 3 of the outer hull 2.
[0097] This rotation, naturally, also involving the arm 9 of the lateral support 8a, causes a corresponding and integral rotation, on the axis 7b, of the sheave 13, which, with the cable 14 arranged in a "U" around it, it returns to act on the cable 14, causing its movement, which returns the slider 18 to its inactive position along the guide 17.
[0098] In this way, the initial conditions of the safety helmet 1 are quickly restored and, as will become evident to those skilled in the art, the presence of the return spring 11 also allows the inactive position reached by the anti-glare visor 4 to be kept stable, even in the presence of any vibrations or shocks acting on the safety helmet 1.

权利要求:
Claims (15)
[0001]
1. Safety helmet, of the type comprising an external hull (2), provided with a front opening (3), a corresponding internal hull (26) made of shock absorbing material, at least one anti-glare visor (4) attached to the said external hull (2) and movable between at least one engagement position with said front opening (3) and at least one disengagement position of the latter, and an operational portion (8a) of said anti-glare visor (4), integrated with the latter, and controlled, through at least one movement transmission cable (14), by a slider (18) slidably coupled to a corresponding guide (17) attached to the outer hull (2), said slider (18) ) being manually switchable between an inactive position, where said anti-glare visor (4) is arranged in at least one said disengagement position— and an active position in which said anti-glare visor (4) is arranged in at least one said position. and ngate, characterized by the fact that at least one said movement transmission cable (14) has one end (15) integrated with said external hull (2) and the other end (16) integrated with said slider (18), and engaged with at least one actuator (13) fixed to said operational portion (8a) of the anti-glare visor (4) to move the latter.
[0002]
2. Safety helmet, according to claim 1, characterized by the fact that at least one said actuator (13) is fixed — fixed to said operational portion, comprises a pulley, or a pulley, surrounded by at least one said motion transmission cable (14).
[0003]
3. Safety helmet, according to claim 2, characterized in that said movement transmission cable (14) is arranged in a "U" around - the aforementioned pulley or pulley (13).
[0004]
4. Safety helmet, according to any one of claims 1 to 3, characterized by the fact that it comprises elastic return means (11) acting directly, or indirectly, on at least one aforementioned anti-glare visor (4) to push it towards the aforementioned disengagement position.
[0005]
5. Safety helmet according to claim 4, characterized in that said elastic return means (11) comprise at least one spring attached to the outer hull (2) and said anti-glare visor (4).
[0006]
6. Safety helmet according to any one of claims 1 to 5, characterized in that the said operational portion (8a) is constructed in the form of a lever and comprising at least a first arm (9) attached to at least a said actuator (13), to move said anti-glare visor (4).
[0007]
7. Safety helmet, according to claims 5 and 6, characterized in that said lever comprises a second arm (22) attached to at least one said spring (11) •
[0008]
Safety helmet according to any one of claims 1 to 7, characterized in that it comprises temporary retention means (20, 24) of said manually operated slider (18), said temporary retention means (20, 24), acting on said slider (18) when it is arranged in the aforementioned active position.
[0009]
9. Safety helmet, according to claim 8, characterized by the fact that the aforementioned temporary restraint means comprise at least one movable body (20) between a locked position in the engagement with said slider (18) and a released position disengaged with said slider (18), said movable body (20) being elastically pushed (24) towards said locked position.
[0010]
10. Safety helmet, according to claim 9, characterized in that said movable body (20) is a lever provided with at least one locking tongue (25) intended to engage with at least one corresponding seat (19 ) made on said slider (18).
[0011]
11. Safety helmet, according to claim 10, characterized in that said slider (18) comprises two or more seats (19) for said locking tongue (25).
[0012]
12. Safety helmet according to any one of claims 1 to 11, characterized in that at least one said cable (14) is a flexible metal cable.
[0013]
13. Safety helmet according to any one of claims 1 to 12, characterized in that it comprises at least one recess (128) to house, at least partially, said anti-glare visor (4) in said disengaged position, said recess (128) being made, at least partially, between said outer hull (2) and said inner hull (26).
[0014]
14. Safety helmet, according to any of claims 1 to 13, characterized by the fact that it comprises an additional protective visor, the aforementioned anti-glare visor (4) being arranged under the said protective visor.
[0015]
15. Safety helmet, according to any one of claims 1 to 14, characterized by the fact that said guide (17) for said slider (18) is a linear guide integrated with the external hull (2), corresponding to a portion of the outer hull (2) placed laterally in said front opening (3).

类似技术:

公开号 | 公开日 | 专利标题

BR102012001014B1|2020-10-20|safety helmet

US8250669B2|2012-08-28|Safety helmet with supplemental inner visor

EP2229829B1|2013-01-02|Helmet having a guiding mechanism for a compatible visor

JP4895647B2|2012-03-14|helmet

KR101126269B1|2012-03-19|Apparatus for opening/closing and helmet including same

BR112013004249B1|2020-07-28|shading device for vehicle glazing and vehicle

US9655398B2|2017-05-23|Helmet with removable chin guard

TWI580365B|2017-05-01|Shield for helmet

ES2352812T3|2011-02-23|PROTECTIVE HELMET, ESPECIALLY FOR USE IN AUTOMOBILISM AND SPORTS IN GENERAL.

EP1393642B1|2007-07-04|Protective helmet with sun visor, particularly for motorcyclists

JP5645212B2|2014-12-24|Safety helmet with liftable chin guard

EP2340732A1|2011-07-06|Safety helmet with double visor

JP4810300B2|2011-11-09|Children's chairs and motorcycles

BRPI1104278A2|2017-11-21|SAFETY HELMET

BRPI0710397A2|2011-08-09|protective helmet with level visor fitted front chin / folding visor

KR20210009043A|2021-01-26|An electric wheelchair that works in conjunction with the fastening of a protective device

WO2008060039A1|2008-05-22|Helmet having shield control means

JPH0669332B2|1994-09-07|Operation device such as combine

CZ15013U1|2005-01-10|Self-dimming mask for welders

WO2009156529A1|2009-12-30|Helmet for protecting a motorcyclist's head

同族专利:

公开号 | 公开日

BR102012001014A2|2013-07-30|

AU2012203924A1|2013-02-21|

US9167861B2|2015-10-27|

EP2554067A1|2013-02-06|

JP6061539B2|2017-01-18|

ES2467040T3|2014-06-11|

KR101979456B1|2019-05-16|

KR20130016058A|2013-02-14|

AU2012203924B2|2015-12-17|

US20130031699A1|2013-02-07|

EP2554067B1|2014-02-26|

JP2013036158A|2013-02-21|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

US3495273A|1967-01-17|1970-02-17|Gentex Corp|Safety helmet with retractable eye shield|

US3721994A|1971-03-29|1973-03-27|Us Navy|Dual visor headgear|

US3792702A|1972-04-10|1974-02-19|Ulmer & Co Soc|Harness for rapidly placing in position a device such as a respirator mask|

US3783452A|1972-04-11|1974-01-08|Us Navy|Removable goggles for helmet|

US3990757A|1975-12-11|1976-11-09|Carleton Controls Corporation|Connecting device|

DE8534132U1|1985-12-04|1986-06-26|Witzmann, Josef, 8400 Regensburg|Integral safety helmet with retractable visor|

US4862878A|1988-01-07|1989-09-05|Richards Medical Company|Orthopedic prosthesis to aid and support the shoulder muscles in movement of the human arm|

US5752280A|1993-12-13|1998-05-19|Itech Sport Products, Inc.|Eye protection device for headgear|

US6226803B1|1998-07-16|2001-05-08|Shoei Co., Ltd.|Helmet|

US6134719A|1999-11-29|2000-10-24|Kin Yong Lung Industrial Co., Ltd.|Helmet windshield with sunshade device|

JP2002348719A|2001-05-23|2002-12-04|Masao Himeno|Wiper device|

ES2289253T3|2003-07-25|2008-02-01|Opticos S.R.L.|DEVICE FOR UNLOCKING THE ROTATION OF A PROTECTIVE HELMET BARBILLA PROTECTOR.|

DE102005001804A1|2004-10-04|2006-07-27|Schuberth Engineering Ag|crash helmet|

FR2886521B1|2005-06-03|2007-09-07|Cbm Distrib Entpr Unipersonnel|HELMET FOR MOBILE VISOR PROTECTION|

JP4895647B2|2006-03-17|2012-03-14|株式会社Ｓｈｏｅｉ|helmet|

KR100750720B1|2006-09-21|2007-08-22|주식회사 기도스포츠|Helmet|

DE602007011933D1|2007-09-18|2011-02-24|Opticos Srl|Safety helmet with additional inner visor|

ES1068414Y|2008-07-04|2009-01-16|World Champion Brands S L|HELMET FOR THE PROTECTION OF THE HEAD OF A MOTORCYCLE|

US8051500B2|2008-09-12|2011-11-08|Long Huei Helmet Co.|Safety helmet visor setting mechanism|

WO2010066278A1|2008-12-14|2010-06-17|Lazer S.A.|Protective helmet with retractable sun visor|

EP2635144B1|2010-11-01|2018-06-20|Voztec Limited|A protective helmet|

WO2012121878A1|2011-03-04|2012-09-13|Martin Harry J|Compressed gas lens cleaning apparatus|

US20120284905A1|2011-05-09|2012-11-15|Hjc Corp.|Multi functional helmet|US8813270B2|2011-07-26|2014-08-26|Vladimiro Pizzi|Helmet with flush aligned shield when closed|

US9445639B1|2012-11-08|2016-09-20|Peter Aloumanis|Embedding intelligent electronics within a motorcyle helmet|

KR101402613B1|2013-06-24|2014-06-03|주식회사 홍진에이치제이씨|Motorcycle helmet|

EP2853168B1|2013-09-26|2016-09-21|Strategic Sports Limited|Helmet with pivotable shield|

JP2018523020A|2015-06-24|2018-08-16|トロイア、ジョヴァンニディ|Protective helmet with anti-glare visor|

US9815474B2|2015-10-06|2017-11-14|Honda Motor Co., Ltd.|Combined sensors for making recommendations to a driver|

US11023818B2|2016-06-23|2021-06-01|3M Innovative Properties Company|Personal protective equipment system having analytics engine with integrated monitoring, alerting, and predictive safety event avoidance|

US9848666B1|2016-06-23|2017-12-26|3M Innovative Properties Company|Retrofit sensor module for a protective head top|

US10610708B2|2016-06-23|2020-04-07|3M Innovative Properties Company|Indicating hazardous exposure in a supplied air respirator system|

JP6789266B2|2018-05-01|2020-11-25|株式会社Ｓｈｏｅｉ|Helmet|

GB2576752A|2018-08-30|2020-03-04|Jsp Ltd|Safety helmet|

JP2020128609A|2019-02-08|2020-08-27|株式会社Ｓｈｏｅｉ|Visor locking mechanism and helmet|

IT201900020162A1|2019-10-31|2021-05-01|Piaggio & C Spa|PROTECTIVE HELMET WITH ACTUATION SYSTEM TO MOVE THE VISOR|

CN113273760A|2021-04-08|2021-08-20|广东冠润警用装备有限公司|Novel riding helmet|

法律状态:
2013-07-30| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|

2018-12-18| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2020-08-04| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2020-10-20| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 16/01/2012, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP11006372.4|2011-08-03|

EP11006372.4A|EP2554067B1|2011-08-03|2011-08-03|Safety helmet with anti-dazzle visor|

[返回顶部]