JP2003183925A - Device for taking off visor from cap of safety helmet for motorcycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for easily taking on and off a rotatable visor. <P>SOLUTION: The device for taking on and off a visor from a cap of a helmet with front opening and two side devices for rotating the visor from an operative position of interception of the front opening to a raising position of the visor. The rotating device is provided with an elastic cursor 3 fitted to enable the turning and the axial sliding in a seat. The elastic cursor can be shifted from an engaged to a disengaged position with a retaining hole made in a rear end of the visor in the relative movement to the seat. The device further comprises means for allowing the axial sliding of the elastic cursor on the seat exclusively in one or more predefined angular positions assumed by the cursor. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a helmet (cap) shell for an Odubai or other sport of the type having a front opening and two side devices for rotating the visor with respect to the front opening. On the other hand, the present invention relates to a device for attaching and detaching (releasing) a visor.

[0002]

2. Description of the Related Art A safety helmet (or full helmet), in which an audible helmet, in particular a cap, completely protects a user's head from the front opening above the nose and eyes, has a rear end of the visor, respectively. Fixed,
A pair of side devices for rotating the visor are provided, and the visor
It is common to allow rotation from a position that blocks the front opening to a raised position.

The rotator generally comprises a support member integral with the cap, which may simply be a seat formed on the cap itself or structural details connected thereto, and a visor. Are hingedly secured by various types of mechanical fasteners.

These mechanical fasteners are provided by the user when the visor is removed from the helmet rotator for cleaning the visor or for replacement with a new one if it becomes worn or scratched. Obviously, it must be deactivated by a suitable tool.

However, while this method is considerably simpler and more economical, it does not exist in situations where the user does not have a suitable tool to deactivate the mechanical fasteners. , It is not very practical when you need to change visors quickly during competition.

SHARK S.A.
A. ) French Patent Publication No. 2785505
It has been proposed to provide appropriately sized holes at the two rear ends of the visor and to fit pins that project laterally from opposite portions of the cap into these holes. Each pin is provided with a retractable lateral fastener, in particular of a spherical shape, which locks or releases the visor on the pin, depending on its position. These fasteners are operated by elastic buttons which, when pressed, retract the fasteners and release the visor.

With this arrangement, it seems that the operation can be done fairly quickly and the visor can be removed without the need for special tools, but the mechanism employed is complicated and therefore , The equipment is probably unreliable, it is difficult to manufacture to some extent, and the economy is low.

Further, in the SHARK device, the visor can be removed even when the visor is in the normal use position, that is, when the front opening of the helmet is blocked. In fact, the mechanism comprises a safety block that prevents the elastic button from moving for some reason when the visor is in the closed position, which results in the spherical fastener retracting and possibly releasing the visor. Not not.

In modern safety helmets, the rotary visor in its normal position of use blocking the front opening of the helmet is fitted flush with the helmet itself. This precaution is aesthetically pleasing and is particularly effective in obtaining an efficient aerodynamic shape of the helmet, and therefore convenient for the rider to advance through the air at high speed, reducing the corresponding aerodynamic drag. It has been found to be effective in making it happen.

In these latest examples, to allow the visor to assume a fitted position that protects the helmet opening, and a raised position that pivots away from the cap so that the visor does not block the opening. To
The rotating device on the side of the helmet is integrated with the visor, which is connected to the visor and lifted with respect to the cap and moved by the user to move the visor away from the cap. In terms of orientation, it is contemplated to provide both a rotating member that is constrained to the lift support member.

When the user wants to lift the visor and allow air to flow into the opening, the visor must be extracted by the lift support member and then rotated with the rotating member relative to the cap. Even with this type of helmet, it is often necessary to remove the visor from the helmet rotating device in order to clean the visor or replace it with a new one if it becomes worn or scratched.

For this purpose, each rotating device is provided with a visor releasing device consisting of a button or a cursor which slides axially with respect to the supporting member and which is fitted into a corresponding holding hole provided at the rear end of the visor. It is generally provided. Each button is fitted in the hole of the visor by an elastic member such as a leaf spring, and the user can press the button to release it from the hole of the visor and remove the visor from the rotating device.

More specifically, in a recent example of the prior art, each rear end of a visor fitted in each rotating device is mounted on a guide provided on a rotating member rotatably mounted on a support member. And the elastic button fits into the hole in the end of the visor, and is retained in the guide to prevent free sliding.

As mentioned above, the button is made elastic by means of a suitable elastic leaf spring, and the leaf spring which is connected to this button and bends when the button is pressed releases the button from the helmet. It is transformed so that it can be translated by a sufficient distance.

Further, in these devices, since the button can move (translate) with respect to the leaf spring in the direction parallel to the guide in which the visor slides, the position of the visor with respect to the cap can be optimally adjusted. You can

When the visor is in the normal use position, blocking the front opening of the helmet and fitting flush with the cap, the mechanism itself and the appropriate side rotation and lift device associated therewith. The presence of such a rest, striker, and in any case the intervening member limiting the effect of the pressure exerted on the button does not allow the button and its elastic member to bend and deform to the extent that the visor can be released. Such a mechanism is, for example, an Opticos SRL.
OS S. r. l. ) European Patent Publication No. 1057
No. 418.

To remove the visor, the user first activates the lift system, which moves away from the side area of the cap, releasing the safety block controlling the elastic member, and then into the hole at the end of the visor. The visor must be opened by depressing the two fitted buttons to release the visor from the rotating device and disengage it from the guides provided on the rotating member.

The removal device described above operates very quickly, and in the normal use position of the visor, ie when it blocks the front opening of the helmet, it is not possible to reliably remove the visor, but its construction. Is very complicated and not easy to manufacture.

Furthermore, the force required to produce the required bending of the leaf spring and the degree of deformation of the spring will vary depending on the position of the button with respect to the spring. That is, there is a certain non-uniformity in the response of the removal device to prevent the axial sliding of the button from being insufficient to disengage the visor from the device at a certain relative position of the button to the leaf spring. It is necessary to upsize the device.

[0020]

It is an object of the present invention to provide a full helmet (or safety helmet) cap which is free from the disadvantages of the prior art and therefore operates very quickly while being highly reliable. , Providing a device for removing the visor.

Another object of the invention is to prevent the visor from being removed while blocking the front opening of the helmet during use and to be very structurally very simple yet very efficient. A visor removal device is provided.

The above and other objects are achieved by the device of the invention as claimed by claim 1 and the following dependent claims.

[0023]

SUMMARY OF THE INVENTION According to the invention, a helmet of the type having a front opening and two side devices for rotating the visor from an operating position blocking the front opening to a raised position of the visor itself. A device for attaching and detaching the visor to and from the cap comprises, on each rotating device, an elastic cursor fitted so as to be able to rotate and axially slide within the seat of the rotating device.

The elastic cursor can move from the engaging position to the disengaging position with respect to the holding hole formed at the rear end of the visor when moving relative to the seat. The device further comprises means for allowing the elastic cursor to slide axially relative to the seat only at one or more predetermined angular positions taken by the cursor with respect to the seat. The means allowing the cursor to slide is preferably activated by the interference of the members.

The elastic cursor of the helmet attaching / detaching device according to the preferred embodiment of the present invention can rotate together with the visor, and the angular position where the cursor can slide axially with respect to the seat of the rotating device is , It coincides with the angular position taken by the cursor when the visor is in the raised position.

According to a special aspect of the invention, the cursor has a protruding portion that rests on the surface of the support member and slides over it while it rotates with respect to the seat. The sliding surface comprises a housing that fits into these protrusions and allows the cursor to move past the seat of the rotating device.

According to another aspect of the invention, the cursor is
It is made elastic by a coil spring operably inserted between the seat and the cursor.

[0028]

The preferred embodiments of the invention will now be described, purely by way of non-limiting example, with reference to the accompanying drawings.

FIGS. 1a and 1b show a safety helmet 10 of the type in which the visor 105 blocks the front opening 106 of the helmet 101 at a fitting position where it is flush with the cap 107.
Figure 2 shows two side views of 1, respectively with the visor raised and with the visor closed.

The helmet 101 has a visor 1 on both sides.
05 comprises two devices 102 capable of engaging a rear end 103.

FIG. 2 is an exploded view of a device 102 for rotating a visor 105 that can be mounted on a full helmet of the type shown in FIGS. 1a and 1b. In these helmets, the visor 105 blocks the front opening 106 (FIG. 1b), and when the user wants to rotate it, the rotating device 102 located on the side of the cap 107.
First move the visor 105 away from the cap itself so that the visor 105 will open the opening 106 in the helmet.
The visor 105 must be allowed to rotate to the raised position (FIG. 1a) after it has not been embedded in the.

To this end, the rotating device of FIG.
The assembly 2 that lifts 05 and moves it forward and the assembly 2 that is rotatable with respect to the assembly 2
And the rear end portion 103 of the visor 105 is connected to the rotary member 4.

More specifically, the assembly 2 comprises:
The base 22 fixed to the cap 107 and the visor 2
Elastic means 23 that can be held in one stable position,
The lift support member 1 is connected to the visor 105 and can be pulled out from the opening 106 and lifted with respect to the cap 107.

The support member 1 is provided with a bottom surface, which is provided on the base 22 and is slidably connected to a wedge-shaped inclined slide, the higher one of which faces the front of the helmet, which is stabilized by means 23. Held in equilibrium position.

The relative sliding of the lift support member 1 with respect to the slide of the base 22 causes the visor 105 to move.
Move away from 07 laterally and longitudinally forward. Furthermore, the support member 1 is in a stable position by means of either 23 when raised or when it is closed to the base 22.

This withdrawal method of visor 105, briefly described above, is the object of the patent application filed simultaneously by the applicant and is not part of the present invention.

Further, in the embodiment of FIG. 2, the rotary member 4
However, it is connected to the support member 1 by a bush 7 and a rivet 8 that form a rotation shaft that freely rotates the rotary member 4 with respect to the support member 1. The rotating member 4 is also fixed to one of the rear end portions 103 of the visor 105,
Rotate with visor 105.

Therefore, in the illustrated apparatus, the lift support member 1 moves the visor 105 away from the front opening 106 and moves it forward with respect to the cap 107, so that the visor 105 is extracted and then rotated by the rotating member 4. Can be made.

The illustrated device also includes an elastic cursor 3 which is elastically fitted to slide and rotate on the rotating member 4.
And an intermediate plate 6 having a function to be described later, and a coil spring 5 inserted between the plate 6 and the cursor 3. The cursor 3, the spring 5 and the support member 1 are a part of the visor attaching / detaching device of the present invention.

More broadly, the device according to the invention comprises a support member 1 for a rotating device, which can simply be a fixed seat formed in a cap 107, and a visor 1
An elastic cursor 3 capable of engaging with a corresponding holding hole 104 arranged at the rear end portion 05 of 05 is connected to the support member 1 so as to be rotatable and slidable relative to each other.

When the elastic cursor 3 moves in the axial direction with respect to the support member 1, the hole 10 of the visor 105 is provided only when the cursor 3 reaches a predetermined angular position with respect to the support member 1.
4 can be axially translated from a raised position engaged with 4 into a lowered position which disengages from hole 104. For this purpose, means are provided which allow the cursor 3 to slide relative to the support member 1 only in these predetermined angular positions, preferably of the type having an interference member.

The cursor 3 rotates together with the visor 105, the cursor 3 slides with respect to the support member 1, and the hole 10
The angular position at which the visor 105 can be freed off from 4 corresponds to the raised position of the visor 105 (FIG. 1a).

As will be apparent to those skilled in the art, the device of the present invention is not only applicable to the withdrawal assembly 2 described above, but also with prior art visor withdrawal mechanisms such as Opticos SRL.
OS S. r. l. ) European Patent Publication No. 1057
It should be noted that it is generally possible to use even the helmet described in US Pat. No. 419--or a helmet that does not have a visor fitted in it, and therefore the extraction assembly 2 is not present.

In the latter case, the support member 1 and the base 22
Match, so that the rotating member 4 can rotate with respect to the cap 107.

The preferred embodiment of the present invention shown in FIG. 2 will be described in detail with reference to FIGS.

FIG. 3 shows a support member 1 according to a preferred embodiment of the invention, with a bottom surface 11 surrounded by a frame 9 into which a rotating member 4 can be rotatably fitted, and a rivet 8 for assembly. And a hole 13 to be inserted. Bottom 1
1 is provided with a plurality of grooves or holes 12 and the frame 9 is also provided with two diametrically opposed slots 10a,
10b is provided to form an interruption in the frame 9.

As shown in FIG. 4, the rotating member 4 comprises a lower cylindrical portion or cup capable of engaging the support member 1, which comprises a hole 17 for engaging the bush 7 and the rivet 8 and a diameter. Two through openings 15 facing each other
a, 15b and two other openings 16a, 16b that are offset by 90 degrees with respect to these openings.

Further, the visor 1 is provided above the rotating member 4.
There are two parallel guides 18a, 18b into which the rear end part 05 of 05 can be slid and inserted.

The bush 7 and the rivet 8 serve as a hinge of the rotating member 4 with respect to the supporting member 1, and another restraining member capable of holding the rotating member 4 and the supporting member in a relatively rotatable manner is used instead. It will be clear that you can.

As shown in FIG. 5, the elastic cursor 3 has two molding protrusions 19a and 19b, and has a shape that can be retained in the holding hole 104 of the rear end portion 103 of the visor 105. Has become.

The cursor 3 is held at a position away from the rotating member 4 and thus from the supporting member 1 by a coil spring 5 which exerts a pressing action on the inner surface of the cursor 3 and the intermediate plate 6.

Therefore, during use, the visor 105 is removably inserted between the guides 18a and 18b arranged on a plane orthogonal to the rotation axis of the rotating member 4, whereby the visor 105 is integrated with the rotating member 4. Can be rotated. In addition, the elastic cursor 3 is engaged in the hole 104 by the pushing action of the spring 5, so that the visor 1
05 is held integrally with the entire rotating device.

The protruding portions 19a and 19b of the cursor 3 are
The cursor 3 can be rotated together with the rotary member 4 by being fitted into the through openings 15a and 15b of the rotary member 4, and at the same time, can be moved with respect to the rotary member 4 in a direction corresponding to the rotation axis by a stroke of a predetermined length. Have a shape that guarantees.

Further, the bottom ends of the protruding portions 19a and 19b are placed on the upper surface of the frame 9 provided on the supporting member 1, and the rotating member 4 and thus the cursor 3 are rotating relative to the supporting member 1. , Can slide on it. Therefore, when the rotating member 4 rotates, the protruding portion 1
9a and 19b are housings (slots) 10a and 10b
Until the projections 19a, 19b reach the angular position corresponding to
Slides on the frame 9.

By inserting the protrusions 19a and 19b into the housings 10a and 10b so that a force sufficient to overcome the thrust of the spring 5 is applied to the cursor 3, the cursor 3 is axially moved with respect to the rotating member 4 and the supporting member 1. Can be slid in any direction.

In this particular embodiment of the invention, the protruding portions 19a, 19b of the cursor 3, the housings 10a, 1 are shown.
0b and the frame 9 of the support member 1 cooperate with the coil spring 5 to allow the cursor to slide axially only when the cursor 3 is in a predetermined angular position with respect to the support member 1. Are configured.

As described above, the housings 10a, 10
The position of b is such that only when the visor 105 is in the raised position shown in FIG. 1a, and thus when the rotary member 4 and the cursor 3 assume a corresponding angular position with respect to the lift support member 1, the protruding portion 19a, 19b is the housing 10a, 10
This is the position where the position coincides with b.

Therefore, in this structure, by applying pressure to the cursor 3, it is possible to overcome the resistance of the spring 5 and move it in the direction toward the support member 1. This movement has a stroke sufficient to disengage the cursor 3 from the hole 104 in the visor 105, thus allowing the rear end 103 of the visor 105 to slide, which causes the visor to guide the rotating member 4. 18
It will not get stuck in a and 18b and will not be constrained by the cursor.

In a more essential embodiment of the invention, not shown, the visor 1 can be used without departing from the object of the invention.
The device for rotating 05 does not include the rotating member 4,
It has to be noted that the visor may only be constrained by the cursor 3 in one piece with it. In this essential embodiment, the cursor 3 can be restrained directly on the support member 1 in rotation and axial movement.

FIG. 6 is a side cross-sectional view of the intermediate plate 6, which, in the illustrated embodiment, rests on the bottom surface of the cylindrical portion of the rotating member 4, with the spring 5 resting on the plate 6. The plate 6 has a central hole 20 and is provided with two teeth 21a, 21b, which are the openings 16a of the rotating member 4,
16b and then through the wall to fit into a groove or hole 12 provided in the surface 11 of the support member 1.

Therefore, the teeth 21a and 21b are opened 16
The plate 6 is integrated with the rotating member 4 by being inserted into a and 16b, and is elastically held at a predetermined position by the coil spring 5.

The function of the teeth 21a, 21b fitted in the groove 12 is to provide a substantially stable predetermined angular position for rotating the visor. The plate 6 and corresponding groove 12 may be omitted without this structural or functional effect on the device of the invention.

In the assembled state of FIG. 2 with the lift support member in the raised position and the cursor 3 in the position constrained by the spring 5, an overall side sectional view of the device is shown in FIGS. 8 (Visor not shown for clarity).

Therefore, to remove the visor 105 from the illustrated rotating device, the user first pulled the visor 105 out of the front opening 106 and at the same time moved it away from the cap 107 and then rotated it to the raised position. Then remove it.

In fact, in the illustrated full helmet 101, the visor 105 and the cap 107 have a fitting position flush with the cap 107 when the visor 105 itself is set to block the front opening 106.
Due to the interference of the members between the visor 105 and the front opening 10,
It is not possible to rotate it before pulling it out of 6.

Therefore, in the preliminary operation of extracting and rotating the visor, the user can, if necessary, use the visor 1
The lift support member 1 is first raised and advanced relative to the base 22 using any suitable means (not shown) for pushing 05, and then the visor 105 is rotated relative to the cap 107, resulting in rotation. It is envisaged to rotate the member 4 and the holding cursor 3 with respect to the support member 1 to the raised position.

Due to the interference between the teeth 21a, 21b of the plate 6 and the groove 12 of the support member 1, which is maintained by the pushing action of the spring 5, the visor 105 is
It is possible to gradually lift to a stable angular position recognized by the shape arrangement of the.

By the rotation of the visor 105, the protruding portion 1
9a, 19b slide on the upper surface of the frame 9 and rest thereon, so that for some reason the cursor 3 is in the intermediate position taken while the cursor 3 rotates with respect to the support member 1. The possible event of axial movement towards is prevented.

On the other hand, when the visor 105 reaches the completely raised position, the angular positions of the protruding portions 19a and 19b with respect to the support member 1 coincide with the positions where the housings 10a and 10b are formed in the frame 9, so that the protrusions are formed. Parts 19a, 1
The bottom end of 9b does not rest on the frame 9.

Therefore, at this position, by applying a pressure to the cursor 3 that overcomes the resistance of the coil spring 5, the cursor 3 slides in the axial direction and approaches the support member 1, and the rear end portion 103 of the visor 105 moves. It can be detached from the holding hole 104. Therefore, by pressing the cursor 3, it is possible to slide the visor 105 to disengage it from the guides 18a and 18b of the rotating member 4 and disengage it from the rotating device.

By repeating this operation for both side rotating devices of the helmet 101, the visor 105 can be quickly removed from the helmet 101 and possibly replaced. It is only possible to remove the helmet at positions other than the normal use position where the front opening of the helmet is blocked, and it is only at the elevated position of the visor 105 (Fig. 1a) that the cursor 3 can be pressed to release (remove) the visor 105. It depends on what you can do.

The installation of the new visor on the rotating device of the type shown is carried out by repeating the above-mentioned removing operation in the reverse order, so that for each side rotating device 102 of the helmet 101, the rotating member 4 is attached to the visor. While holding the removal position and pressing the cursor 3, the rear end portion 103 of the new visor is moved to the guide 18 of the rotating member 4.
This is achieved by inserting holes a, 18b and aligning the hole 104 with the cursor 3.

At this time, it is sufficient to release the cursor 3 in order to fix the visor, which is pressed by the spring 5 into engagement with the hole 104, whereby the visor 105 is guided in the guides 18a, 18b. To prevent sliding.

As will be apparent to those skilled in the art, the device described above can easily be adapted to rotating devices which are not intended to pre-draw the visor.
Furthermore, as a possible embodiment, the rotation of the cursor 3
It may be independent of the rotation of the visor itself.

From the above description, the operation of each cursor 3 is quick and structurally simple, and at the same time, removal of the visor 105 when the visor is in a position to block the front opening 106 during normal use of the helmet. Given that it can be prevented, it is clear that the novel device for attaching and detaching the visor 105 to and from the helmet cap is particularly effective.

[Brief description of drawings]

1a and 1b are schematic side views of a safety helmet of the type in which the device according to the invention can be fitted and the visor can be set flush with the cap.

FIG. 2 is an exploded view of a rotating device having a device for removing a visor of a full helmet according to a preferred embodiment of the present invention.

FIG. 3 is a plan view of the lift support member of the embodiment of FIG.

FIG. 4 is a plan view of the rotating member of the embodiment shown in FIG.

5 is a side sectional view of the cursor of the visor removal device of FIG.

FIG. 6 is a side sectional view of the intermediate plate of the embodiment of FIG.

FIG. 7 is a side cross-sectional view of the rotating device and visor removal device in the assembled state and with the visor in a raised position relative to the helmet cap.

FIG. 8 is a plan view of the embodiment of FIG.

[Explanation of symbols] 1 Lift support member 2 assembly 3 cursor 4 rotating members 5 coil spring 6 Intermediate plate 7 bush 8 rivets 9 frames 10a, 10b housing 11 Bottom 12 grooves 13 holes 15a, 15b opening 16a, 16b opening 17 holes 18a, 18b guide 19a, 19b Projection part 20 Central hole 21a, 21b teeth 22 base 23 Elastic means 101 helmet 102 rotating device 103 rear end 104 holding hole 105 visor 106 front opening 107 cap

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Alberto Salvetti             Italy-24-24124 Bergamovi             Apitentino 14 (72) Inventor Gabriele Tomazoni             Italian Country I-24050 Varian (Bee             Gee Via Gee Verdy 3 F-term (reference) 3B107 BA07 BA08 DA08                 3J105 AA02 AA03 AA15 AB02 AB24                       AB41 AB46 AB48 BA22 BA25                       BA41 BA47 BB07 BB15 BB24                       BB26 BB52 BC02 BC14 DA32                       DA34

Claims (12)

[Claims] 1. To attach and detach the visor to and from a helmet cap of the type having a front opening and two side devices for rotating the visor from an operating position blocking the front opening to a raised position of the visor, Each rotating device is provided with an elastic cursor which is fitted in such a way that it can rotate in the seat of the rotating device and slide in the axial direction, and the elastic cursor is fitted into a holding hole formed at the rear end of the visor. A device capable of moving between an engagement position and a disengagement position by the cursor being limited to one or a plurality of predetermined angular positions with respect to the seat portion. A device characterized in that it has means to allow it to slide axially. 2. The visor can be set flush with the cap when in the operative position, and each of the rotating devices includes at least one rotating member for rotating the visor with respect to the cap. The apparatus according to claim 1, wherein the seat portion is a lift support member that moves the visor toward and away from the cap. 3. The apparatus according to claim 1, wherein the cursor rotates with a visor. 4. The angular position at which the cursor can slide axially with respect to the support member coincides with the angular position taken by the cursor when the visor is in the raised position. The described device. 5. The means for enabling axial sliding is actuated by the interference of members.
4. The device according to any one of 4. 6. The means for allowing axial sliding includes one or more protrusions integral with the cursor,
And a sliding surface of the seat on which the protruding portion can rest, the sliding surface including one or more housings into which the protruding portion fits to allow the cursor to slide axially. The device of claim 5, wherein the device comprises. 7. The device according to claim 1, further comprising a rotating member rotatably connected to the seat portion. 8. The apparatus of claim 7, wherein the rotating member has a grooved guide into which the side end of the visor can be inserted. 9. The rotating member is arranged between the cursor and the seat portion, and the cursor is restrained by the rotating member so as to be slidable in the axial direction. The described device. 10. The device according to claim 1, wherein the cursor has elastic means acting to move away from the seat portion. 11. The apparatus according to claim 9, wherein the elastic means is a coil spring arranged between the cursor and the rotating member. 12. A plate integrated with said rotating member, said plate being capable of releasably engaging a corresponding groove or hole provided in said seat.
Device according to claim 7, characterized in that it comprises three teeth.