CN111542243B - Protective helmet for motorcyclist - Google Patents

Abstract

The invention relates to a protective helmet for motorcyclists comprising: a side mechanism for mounting a transparent visor (20) so that it can rotate; a movement for a first visor attachment (202) a first guide (102); and a movable part (103) for locking and unlocking the sun visor (20), and provided with a second sun visor attachment (203) on the sun visor Second guide (104) for movement in board mounted position. The side mechanism comprises a flexible tab (105) which tends to stay in an operative position in which the movable part (103) is held in the unlocked position of the sun visor (20), And during the installation of the sun visor (20), the flexible tab (105) is moved by the sun visor (20) into the inoperative position, wherein the movable part (103) is released, thereby allowing the movable part (103) to automatically Return to the locked position of the sun visor (20).

Description

Protective helmets for motorcyclists

purpose of invention

The object of the present invention is a protective helmet for motorcyclists comprising a front window and side mechanisms for mounting the respective sides of a transparent sun visor so that the transparent sun visor can be positioned in both open and closed positions of the front window Rotate between.

The helmet has improvements designed to facilitate manipulation of the side mechanisms and allow removal of the visor using only one hand.

technical field

The invention is suitable for motorcyclist protective helmets.

Background technique

Currently, the visors installed in protective helmets for motorcyclists allow them to be removed for cleaning or replacement. These helmets have side mechanisms for installing and releasing the visor. The mechanism includes a part movable between an unlocked position allowing removal of the visor and a locked position preventing removal of the visor and allowing the visor to be in an extreme open position relative to the helmet. Turn off rotation between positions.

This movable part for locking and unlocking the sun visor moves in a transverse direction with respect to the axis of rotation of the sun visor and tends to remain permanently in the locked position by the action of the push means; this establishes that the mentioned part must be manually Hold the visor in the unlocked position to remove the visor from the helmet.

The disadvantage of this mechanism is that two hands must be used to remove the visor, one holding said part in the unlocked position, while the other grips and removes the visor.

Contents of the invention

The protective helmet for motorcyclists that is the object of the present invention has features related to the mounting and fixing of the visor relative to the helmet. On the one hand, said feature is intended to allow once the movable part is actuated towards the position for unlocking and releasing the visor, said movable part remains in said open position until the visor is mounted again in the helmet, Thereby allowing the removal of the visor with only one hand; and on the other hand, a mechanism for locking the visor in the closed position is incorporated in the helmet and this mechanism, when activated, unlocks the visor and causes the visor to rotate automatically until until the first open position.

The features of the present invention will be better understood in view of the embodiments illustrated in the drawings described below.

Description of drawings

In order to supplement the description made and for the purpose of aiding the understanding of the characteristics of the invention, a set of drawings is attached to this description, in which the following are depicted in an illustrative and non-limiting manner:

- Figure 1 shows a schematic perspective view of an embodiment of a protective helmet for motorcyclists according to the invention.

- Figure 2 shows a partial profile view of the helmet of the previous figure with the visor cut away and with the elements of the visor interacting with one of the side mechanisms for mounting the visor (in this case case is depicted in the closed position) has been depicted as shaded.

- Figure 3 shows details for mounting one of the sides of the visor in one of the side mechanisms of the helmet, the visor having been depicted in a maximum open position.

- Figure 4 shows an enlarged lower plan detail of a horizontal section of one of the ends of the visor coupled to one of the side mechanisms for mounting the helmet.

- Figures 5 and 6 respectively show views similar to Figure 4 in different stages of disassembly of the sun visor.

- Figure 7 shows a side view of the visor detached from the helmet.

- Figures 8 and 9 show views similar to Figures 4, 5, 6, respectively, at different stages of disassembly of the sun visor.

- Figure 10 shows a side view of the helmet once the locking latch of the sun visor in the closed position has been released and said sun visor has been moved towards the first open position by push means arranged on the sides of the helmet.

Detailed ways

As can be seen in FIG. 1 , the protective helmet for motorcyclists comprises an actual cap or helmet 10 provided with a front window and a window for mounting a transparent sun visor 20. The side mechanism on each side enables the transparent sun visor 20 to rotate between the open position shown in FIG. 3 of the front window and the closed position shown in FIGS. 1 and 2 .

The side mechanism for mounting the visor 20 in the helmet includes cylindrical formations 101 that can be coupled in cavities 201 at corresponding ends of the visor 20 and that define the open and closed positions of the visor 20. Axis of rotation between positions.

Said side mechanism comprises a first curved guide 102 adapted to receive in a radial direction a first radial attachment 202 of the sun visor 20 and to feed the first radial attachment 202 a circular movement around an axis of rotation; and a radially movable part 103 that moves in the front-rear direction between positions for locking and unlocking the sun visor 20 . Said movable part 103 comprises a second curved guide 104 for receiving a second radial attachment of the sun visor 20 in the radial direction in the mounted position of the sun visor 20 relative to the helmet 10 . The connecting part 203 and the second radial attachment part 203 can perform circular motion.

According to the invention, the side mechanism for mounting the sun visor comprises a flexible tab 105 which, due to the elasticity of the material from which it is formed, tends to stay in the operative position in which the movable part 103 is moved. Stay in the unlocked position of the sun visor 20 as shown in FIGS. 5 , 6 and 7 .

Starting from the installed position shown in FIGS. 3 and 4, as shown in FIGS. As long as the movable part 103 is held in the unlocked position by the flexible tab 105, it is possible to initially release the second radial attachment 203 from the second curved guide 104 and then release the first radial attachment 203 from the first curved guide 102. Radial attachment 202 .

As can be seen in FIGS. 8 and 9, during installation of the sun visor 20, the flexible tabs 105 are moved by the sun visor 20 itself towards the inoperative position in which the flexible tabs 105 are drawn into the to below the movable part 103 , thereby releasing the movable part 103 and allowing it to automatically return to the locked position of the sun visor 20 .

The side mechanism for mounting the sun visor includes springs 106 which are compressed when the movable part 103 moves towards the unlocked position of the sun visor 20 and which springs 106 when the flexible tab 105 moves towards the inoperative position. Return the sun visor 20 to the locked position.

The side mechanism for mounting the sun visor 20 includes retaining means for holding the sun visor in successive progressive opening positions between the closed position shown in FIGS. 1 and 2 and the maximum open position shown in FIG. 3 . Said retaining means comprise a corrugated profile part 107 against which lugs 204 of the sun visor 20 act laterally, said corrugated profile 107 determining the different opening positions of the sun visor 20 .

As can be seen from FIGS. 2 and 10 , the helmet comprises, in the front area, a locking latch 108 of the visor in the closed position, and at the sides elastic push means 109 for urging the visor towards the open position. In FIGS. 1 and 2 , the sun visor 20 is held in the closed position by the locking latch 108 and in said closed position the elastic means 109 remain compressed by the sun visor 20 itself. In the example shown, the sun visor 20 acts against the elastic means 109 by means of a stop 205 defined therein.

As shown in Figure 10, when the locking latch 108 is released from the sun visor 20 in the closed position, said elastic means 109 act against the sun visor, more specifically against the stop 205 of the sun visor, thereby causing the sun visor to 20 rotates from the closed position shown in FIGS. 1 and 2 towards the first open position shown in FIG. 10 .

In the example shown, a cylindrical formation 101 that can be coupled in a cavity 201 at a corresponding end of the visor 20 is defined in a component that is mounted on the helmet 10, and that can be coupled with the movable component. 103 moves slightly in the same direction, tending to remain separated from said movable part by the action of spring 110 .

Having fully described the nature and preferred embodiments of the invention, it is for related purposes stated that modifications may be made in material, shape, size and arrangement of the described elements so long as they are not necessary to the invention as claimed below. Basic features are modified.

Claims (3)

1. A protective helmet for motorcyclists, said protective helmet comprising: a front window; and a side mechanism for installing each side of a transparent sun visor (20) such that said transparent The sun visor (20) can rotate between the open position and the closed position of the front window, it is characterized in that the protective helmet comprises: a locking latch (108) for locking and unlocking said sun visor (20), said locking latch (108) being placed in the front area of said helmet (10) below said sun visor (20); as well as elastic urging means (109) for urging said sun visor towards an open position and placed laterally in said protective helmet (10), Thus when the locking latch (108) holds the sun visor (20), the sun visor (20) remains in the closed position and the elastic pusher (109) is held by the sun visor (20) itself compressed so that when the locking latch (108) is released from the sun visor (20) from the closed position, the elastic pusher (109) pushes the sun visor (20), thereby causing the sun visor (20) rotating from said closed position towards a first open position, Wherein, the side mechanism includes: a cylindrical formation (101) couplable in a cavity (201) at a corresponding end of the sun visor (20) and which defines the sun visor (20) An axis of rotation that rotates between an open position and a closed position; A first curved guide (102) adapted to receive a first radial attachment (202) of said sun visor in a radial direction and adapted for said first radial the attachment (202) performs a circular motion about said axis of rotation; and A movable part (103) movable in a radial direction between a position for locking said sun visor (20) and a position for unlocking said sun visor (20), said movable part (103) A second curved guide (104) is defined for receiving a second radial attachment of the sun visor (20) in a radial direction in the mounted position of the sun visor. joint (203) and for the circular movement of the second radial attachment (203), and wherein said side mechanism comprises a flexible tab (105) capable of staying in an operative position in which said movable part (103) is held in said sun visor in the unlocked position of the panel (20); and during installation of the sun visor (20), the flexible tab (105) is moved towards the inoperative position by the sun visor (20) itself to release The movable part (103), thereby allowing the automatic return of the movable part (103) to the locked position of the sun visor (20). 2. The protective helmet according to claim 1, characterized in that the sun visor (20) comprises a stop (205), against which the elastic pusher (109) acts . 3. Protective helmet according to claim 1 or 2, characterized in that the side mechanism comprises holding means (107) for holding the sun visor (20) closed Continuous open positions between position and maximum open position.

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