FR2804290A1 - Automatic ejection device of protective eye screens for motor cycle visor, comprises screens with holes retaining them against visor and ejection arms successively disarmed by reduction motor - Google Patents

Abstract

The device enables the instantaneous superposing of several protection screens (10,20,30,40) on a motor cycle visor. The upper screen (ES) can be raised in order to retain a good visibility through the remaining interior screens. Each screen has holes (11,21,31,41) enabling them to be kept against the visor. The device has several ejection arms each placed under a screen tab and loaded ejection means (60) comprising a reduction motor with an output shaft which successively disarm the ejection arms in order to cause the ejection of the upper screen.

Description

The present invention relates to the field of protective devices for the eye type motorcycle goggles or helmet visors and more particularly to a device for temporarily superimposing a plurality of protective screens on a protection for the eyes and to remove if necessary, the upper screen in order to maintain good visibility through the remaining lower screen (s) and I or said eye protection, said screens each having means for holding them against said eye protection as well as a tongue.

This kind of device allows to keep a good visibility through the glasses or the visor, allowing to remove the upper screen when it is too dirty.

It is intended for all racing drivers, for car, motorcycle or bicycle tests, and more particularly for off-road events. The prior art already knows a device for temporarily superimposing a plurality of protective screens on an eye protection type motorcycle goggles or helmet visor.

This device consists of a set of transparent plastic screens each having a shape similar to that of the motorcycle goggles or the visor of the helmet and each being provided with a part of holes and secondly with a tongue.

The holes of the screens are superimposed so as to clipper the screens on studs formed on the surface of the glasses or on the surface of the visor.

To remove the top screen, just pull hard on its tab. Each tab of each lower screen being folded under the screen placed just above, the removal of the upper screen causes the release of the tab of the screen located just above so that it can be seized by hand.

The major disadvantage of this device is that the driver must let go of the means that allows him to change direction, that is to say, the steering wheel or the handlebars, to pull successively on the tabs.

This intervention may therefore on the one hand to deconcentrate it, and on the other hand to waste time. This intervention can also be a source of falls and the driver is often obliged to wait for the right moment to remove the upper screen, and thus suffer during this time poor visibility.

Moreover in practice, motocross riders usually remove the top screen during a jump between two bumps.

The present invention intends to overcome the disadvantages of the prior art by providing a device of the type described above for automating the removal or ejection operation of the upper screen. In addition, the device according to the invention allows this operation without releasing the vehicle direction change means.

To do this, the device according to the invention comprises a plurality of ejection arms, each placed, in the armed position, under a tab of a screen and ejection means responsible for successively disarming the ejection arms to to cause the ejection of the upper screen.

In addition, the device according to the invention can be implemented, simply by pressing a button, positioned near a pilot's hand, on a transmitter box, the transmitter box being responsible for transmitting a specific signal to a receiver box , so that the ejection means cause the ejection of the upper screen.

Thus, the driver does not need to release his handlebars or steering wheel to remove the upper screen, he is no longer likely to fall at the time of this operation and he remains focused all the time.

It can, in addition, proceed to the ejection of the upper screen at any time. The invention will be better understood by means of the following description of an implementation mode given by way of non-limiting example, with reference to the appended figures in which: - Figure 1 illustrates a view of set of the device according to the invention; FIG. 2 illustrates a partial view of the ejection means; FIG. 3 illustrates a view of the succession of screens; and FIG. 4 illustrates a partial and front view of the protection for the eyes. The device according to the invention, illustrated in FIG. 1, is a device (0) for momentarily superimposing a plurality of protective screens (10, 20, 30, 40) on an eye protection (50) of the telescope type. motorcycle or helmet visor and remove, if necessary, the upper ES screen to maintain good visibility through the remaining lower <B> El </ B> screen and / or eye protection (50). ), said screens (10, 20, 30, 40) each having means (11, 21, 31, 41) for holding them against said eye protection (50) and a tongue (12, 22, 32) , 42).

In the description below, the device is designed to allow four screen captures and therefore has four screens, but it can of course allow a different number of removals and therefore include a different number of screens without that we leave, for this, the scope of the invention. The device (0) according to the invention is characterized in that it comprises a plurality of ejection arms (1, 2, 3, 4), each placed, in the armed position, under a tongue (12, 22, 32 , 42) of a screen (10, 20, 30, 40) and ejection means (60) for successively disarming the ejection arms (1, 2, 3, 4) to cause the ejection E from the ES top screen. Thus, the ejection means (60) and the screens (10, 20, 30, 40) are arranged in such a way that the screen which is ejected to maintain good visibility through the eye protection (50). ) is always the upper ES screen. To do this, the ejection arms (1, 2, 3, 4) are arranged offset relative to one another, and the tongues (12, 22, 32, 42) of the screens (10, 20, 30, 40 ) are also arranged offset with respect to each other.

In addition, the means (11, 21, 31, 41) for retaining the screens (10, 20, 30, 40) against said eye protection (50) are arranged to yield and to no longer perform their duties when a screen (10, 20, 30, 40) is ejected. Preferably, the implementation of the ejection means (60) is controlled by means of a transmitter housing (5), positioned on the means of change of direction (6). The transmitter housing (5) comprises a button (7) and an electronic circuit responsible for transmitting a specific control signal (8) when the button (7) is depressed.

In addition, the eye protection (50) comprises a receiver housing (51) responsible for receiving said specific control signal (8) and causing the implementation of the ejection means (60). In a preferred version of the invention, said ejection means (60) consist of at least one geared motor (61) having an output shaft (62), said output shaft (62) being provided with a portion in screw thread (63) on which a flange (64) slides in translation as shown in FIG.

In this version, said ejection arms (1, 2, 3, 4) are held in the armed position under the tabs (12, 22, 32, 42) of the screens (10, 20, 30, 40) by a plurality of of springs (13, 23, 33, 43) tending to rotate each ejection arm (1, 2, 3, 4) towards the outside of the eye protection (50) on an axis (9) and a plurality of studs (14, 24, 34, 44), movable, temporarily retaining this maneuver.

The axis (9) is approximately parallel to the output shaft (62) of the geared motor (61).

Said pads (14, 24, 34, 44) have an respectively increasing height.

To implement said ejection means (60), said gear motor (61) is supplied with energy for a precise and constant duration by means of a timing circuit (65).

Thus, when a first specific command signal (8) is sent by the transmitter unit (5), following the depression of the button (7) for the first time, the receiver unit (51) receives the specific signal from control (8) and causes the implementation of the delay circuit (65). The latter feeds the geared motor (61) for a predetermined period of time and the rotation of the output shaft (62) causes the rotation of the screw portion (63).

Since the flange (64) is non-rotatably disposed, the rotation of the screw portion (63) causes the flange (64) to move along the Z axis of the output shaft (62). geared motor (61).

During the first depression of the button (7), the flange (64) thus moves a distance X on the Z axis and causes the release of the first arm (1) retained by the shortest stud, the stud (14). ).

The release, or disarming, of the first arm (1) then causes the ejection of the first upper screen, the screen (10), by pushing and pulling on its tongue (12).

The screen immediately below the screen (10), ie the screen (20), becomes the upper screen.

When the button (7) is depressed for the second time, a second specific control signal (8) identical to the first is sent by the transmitter box (5) to the receiver box (51) and the delay circuit (65) controls again the rotation of the geared motor (61) for a similar period of time.

The flange (64) then moves again by a distance X on the Z axis and causes the release of the second arm (2) retained by the second shortest stud, the stud (24).

The screen (20) is then ejected by the arm (2) by pushing and then pulling on its tongue (22) and the screen immediately below the screen (20), ie the screen (30), then becomes the upper screen. When the button (7) is depressed for the third time, a third specific control signal (8) identical to the first two is sent by the transmitter box (5) to the receiver box (51) and the delay circuit (65) controls again the rotation of the geared motor (61) for a similar period of time. The flange (64) then moves again a distance X on the Z axis and causes the release of the third arm (3) retained by the third shortest pad, the stud (34).

The screen (30) is then ejected by the arm (3) by pushing and then pulling on its tongue (32) and the screen immediately below the screen (30), ie the screen (40), then becomes the upper screen. When the button (7) is depressed for the fourth time, a fourth specific control signal (8) identical to the first two is sent by the transmitter box (5) to the receiver box (51) and the delay circuit (65) controls again the rotation of the geared motor (61) for a similar period of time. The flange (64) then moves again by a distance X on the Z axis and causes the release of the fourth arm (4) retained by the longest stud, the stud (44). The screen (40) is then ejected by the arm (4) by pushing and then pulling on its tongue (42) and it is no longer possible to remove from said eye protection (50) in order to keep good visibility through. As can be seen, the stud (14) has a height approximately equal to X, the stud (24) has a height approximately equal to 2X, the stud (34) has a height approximately equal to 3X and the stud (44) has a height approximately equal to 4X. Figure 3 illustrates the positioning of the tabs (12, 22, 32, 42) on the screens (10, 20, 30, 40).

The tabs (12, 22, 32, 42) must imperatively be offset from one another so that they can be correctly positioned on the armed ejection arms (1, 2, 3, 4).

The tongues (12, 22, 32, 42) can be marketed in the form of batches each consisting of a set of tabs (12, 22, 32, 42) already offset, to allow all to position in a single operation. To eject the screens (10, 20, 30, 40), each ejection arm (1, 2, 3, 4) makes a movement in an arc of a circle with respect to the axis (9), respectively in each of the slots (15, 25, 35, 45) provided in the receiver housing (51), as shown in FIG. 4. To facilitate the ejection of the screens (10, 20, 30, 40), said means (11, 21_, 31, 41 ) for retaining the screens (10, 20, 30, 40) against said eye protection (50) each consist of at least one hole (16, 26, 36, 46) in each screen (10, 20, 30, 40), as well as by a zone of weakness (17, 27, 37, 47) formed between each hole (16, 26, 36, 46) and the periphery (18, 28, 38, 48) of said screens (10, 20, 30, 40).

Each of the holes (16, 26, 36, 46) is intended to be clipped onto a stud (52) formed on the eye protection (50).

Also preferably, these zones of weakness (17, 27, 37, 47) are each produced by means of at least one slot and said ejection arms (1, 2, 3, 4) each comprise at their end a notch ( 19, 29, 39, 49).

For a better ejection of the screens (10, 20, 30, 40), the tongues (12, 22, 32, 42) can, in addition, be each provided with a window intended to coincide with the notches (19, 29, 39, 49).

To reset the device (0) according to the invention, the latter is provided with a switch that allows to feed the geared motor (61) in the opposite direction.

Thus, it is sufficient to fold the ejection arms (1, 2, 3, 4) in the armed position, then cause a translation (-4x) of the flange (64) to bring it back to the initial position, so the studs (14, 24, 34, 44) again engage the ejection arms (1, 2, 3, 4).

The power supply of the geared motor (61) in the opposite direction can be operated at one time or step by step.

Claims (1)

1. Device (0) for temporarily superimposing a plurality of screens (10, 20, 30, 40) of protection on an eye protection (50) of the type of motorcycle bezel or helmet visor and to remove, if necessary, the upper screen ES to maintain good visibility through the remaining lower screen (s) and I or said eye protection (50), said screens (10, 20, 30). , 40) each having means (11, 21, 31, 41) for retaining them against said eye protection (50) and a tongue (12, 22, 32, 42), characterized in that said device (0) comprises a plurality of ejection arms (1, 2, 3, 4), each placed, in the armed position, under a tab (12, 22, 32, 42) of a screen (10, 20, 30). , 40) and ejection means (60) for successively disarming the ejection arms (1, 2, 3, 4) to cause ejection E of the upper screen ES. 2- Device (0) according to claim 1, characterized in that said ejection arms (1, 2, 3, 4) are arranged offset relative to each other. 3- Device (0) according to claim 1 or claim 2, characterized in that said ejection means (60) consist of at least one gear motor (61) comprising an output shaft (62), said output shaft (62) being provided with a portion in screw thread (63) on which slides in translation a flange (64). 4- Device (0) according to any one of claims 1 to 3, characterized in that said ejection arms (1, 2, 3, 4) are retained in the armed position under the tabs (12, 22, 32, 42) screens (10, 20, 30, 40) through a plurality of springs (13, 23, 33, 43) tending to rotate each ejection arm (1, 2, 3, 4) outwardly protection for the eyes (50) on an axis (9) and a plurality of studs (14, 24, 34, 44), movable, temporarily holding this maneuver. 5- Device (0) according to claim 4, characterized in that said pads (14, 24, 34, 44) are integral with said flange (64). 6. Device (0) according to any one of claims 4 or 5, characterized in that said pads (14, 24, 34, 44) have a respectively increasing height. 7- Device (0) according to any one of claims 3 to 6, characterized in that to implement said ejection means (60), said gear motor (61) is supplied with energy for a specified duration and constant thanks to a delay circuit (65). 8- Device (0) according to any one of claims 1 to 7, characterized in that said means (11, 21, 31, 41) for retaining the screens (10, 20, 30, 40) against said protection for the eyes (50) each consist of at least one hole (16, 26, 36, 46) formed in each screen (10, 20, 30, 40), as well as by a zone of weakness (17, 27, 37, 47) formed between each hole (16, 26, 36, 46) and the periphery (18, 28, 38, 48) of said screens (10, 20, 30, 40). 9- Device (0) according to claim 8, characterized in that said zones of weakness (16, 26, 36, 46) are each made with at least one slot. 10- Device (0) according to any one of claims 1 to 9, characterized in that said ejection arms (1, 2, 3, 4) each comprise at their end, a notch (19, 29, 39, 49).