CN111542243A - Protective helmets for motorcyclists - Google Patents

Abstract

The present invention relates to a protective helmet for motorcyclists, comprising: a side mechanism for mounting the transparent sun visor (20) so as to be rotatable; a first guide (102) for movement of a first visor attachment (202); and a movable member (103), the movable member (103) being used for locking and unlocking the sun visor (20) and being provided with a second guide (104) for movement of the second sun visor attachment (203) in the sun visor mounting position. The side mechanism comprises a flexible tab (105), which flexible tab (105) is intended to stay in an operative position, in which the movable part (103) is held in an unlocked position of the sun visor (20), and to move the flexible tab (105) by the sun visor (20) into an inoperative position during installation of the sun visor (20), wherein the movable part (103) is released, 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 the transparent sun visor so that the transparent sun visor can be used in the 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 motorcycle rider protective helmets.

Background technique

Currently, visors installed in protective helmets for motorcyclists allow them to be removed for cleaning or replacement. These helmets have side mechanisms for attaching and releasing the visor. The mechanism includes a member movable between an unlocked position allowing removal of the sun visor and a locked position preventing removal of the sun visor and allowing the sun visor relative to the helmet in an extreme open position with Rotation between closed 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 pushing means; this establishes that the mentioned part must be manually must remain 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 sun visor, one holding the part in the unlocked position and the other hand holding and removing the sun visor.

SUMMARY OF THE INVENTION

The protective helmet for motorcyclists, which is the object of the present invention, has features related to the mounting and fixing of the visor relative to the helmet. In one aspect, the features are intended to allow the moveable member to remain in the open position once actuated towards a position for unlocking and releasing the visor, until the visor is re-installed in the helmet, Thereby allowing 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, when actuated, unlocks the visor and causes the visor to rotate automatically until to the first open position.

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

Description of drawings

In order to supplement the description made and for the purpose of assisting in understanding the features of the invention, the specification is accompanied by a set of drawings in which, by way of example and not limitation, the following are depicted:

- 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 in which elements of the visor interact with one of the side mechanisms for mounting the visor (in this case is depicted in the closed position) has been depicted shaded.

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

- Figure 4 shows an enlarged lower plan detail of a horizontal section of one of the ends of the sun visor coupled with one of the side mechanisms for mounting a 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 sun visor removed 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 the sun visor has been moved towards the first open position by pushing 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 transparent visor 20 for mounting The side mechanism of each side allows 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 a helmet includes a cylindrical formation 101 that can be coupled in a cavity 201 at a corresponding end of the visor 20 and that defines the visor 20 in an open position and a closed position. The axis of rotation between positions.

Said side mechanism comprises: a first curved guide 102 adapted to receive the first radial attachment 202 of the sun visor 20 in radial direction and for the first radial attachment 202 a circular movement around the axis of rotation; and a radially movable member 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 piece 203 and the second radial attachment piece 203 perform a 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 an operating position in which the movable part 103 is blocked by Remain in the unlocked position of the sun visor 20 as shown in FIGS. 5 , 6 and 7 .

From the installation position shown in FIGS. 3 and 4 , as shown in FIGS. 5 and 6 , the sun visor 20 can be removed with only one hand, because once the movable part 103 is placed in the unlocked position of the sun visor 20 , all Said movable part 103 is then held in said unlocked position by the flexible tab 105 and can initially perform the release of the second radial attachment 203 from the second flex guide 104 and then the first flex guide 102 Radial attachment 202 .

As can be seen in Figures 8 and 9, during installation of the sun visor 20, the flexible tab 105 is moved by the sun visor 20 itself towards a non-operating position in which the flexible tab 105 is guided 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 is moved towards the unlocked position of the sun visor 20 and which are compressed when the flexible tab 105 is moved 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 a continuous progressive open position between the closed position shown in Figures 1 and 2 and the maximum open position shown in Figure 3 . Said holding device comprises a corrugated profile part 107 against which the lugs 204 of the sun visor 20 act laterally, which corrugated profile 107 determines the different opening positions of the sun visor 20 .

As can be seen from Figures 2 and 10, the helmet comprises in the front region a locking latch 108 for the sun visor in the closed position and on the sides elastic push means 109 for urging the sun visor towards the open position. In Figures 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 stops 205 defined therein.

As shown in Figure 10, when the locking latch 108 is released from the sun visor 20 in the closed position, the elastic means 109 act against the sun visor, more particularly the stop 205 of the sun visor, thereby causing the sun visor 20 is rotated 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 part mounted on the helmet 10 and can be along the movable part 103 moves slightly in the same direction, tending to remain separated from the movable part by the action of the spring 110 .

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

Claims (3)

1. A protective helmet for a motorcyclist, comprising: a front window; and a side mechanism for mounting each side of the transparent sun visor (20) such that the transparent sun visor (20) is rotatable between an open position and a closed position of the front window, the side mechanism comprising: a cylindrical formation (101), said cylindrical formation (101) being couplable in a cavity (201) of a corresponding end of the sun visor (20), and said cylindrical formation (101) defining an axis of rotation of the sun visor (20) between an open position and a closed position; a first curved guide (102), the first curved guide (102) being adapted to receive a first radial attachment (202) of the sun visor in a radial direction and to provide for a circular movement of the first radial attachment (202) around the axis of rotation; and a movable member (103) movable in a radial direction between a position for locking the sun visor (20) and a position for unlocking the sun visor (20), the movable member (103) defining a second curved guide (104), the second curved guide (104) being adapted to receive a second radial attachment (203) of the sun visor (20) in the radial direction in the mounted position of the sun visor and to provide a circular movement of the second radial attachment (203); characterized in that said side mechanism comprises a flexible tab (105), said flexible tab (105) being apt to stay in an operative position in which said movable part (103) is retained in said unlocked position of said sun visor (20); and during the installation of the sun visor (20), moving the flexible tab (105) towards the inoperative position by the sun visor (20) itself to release the movable part (103) allowing the automatic return of the movable part (103) to the locked position of the sun visor (20).

2. A protective helmet according to claim 1, wherein the side mechanism comprises a retaining device (107), the retaining device (107) being adapted to retain the visor (20) in a continuously open position between a closed position and a maximum open position; the protective helmet comprises a locking latch (108) of the visor (20) in the closed position in a front region.

3. Protective helmet according to claim 2, characterized in that the helmet comprises resilient urging means (109) at the sides for urging the visor towards an open position, and in the closed position of the visor (20) the resilient means remain compressed by the visor (20) itself, so that when the locking latch (108) is released from the visor (20) in the closed position, the resilient means (109) cause the visor to rotate from the closed position towards a first open position.

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