VISOR MECHANISM FOR A SAFETY HELMET

Abstract

A visor mechanism for a safety helmet, in particular for emergency services, includes a visor, which is slidably mounted relative to an outer shell of the safety helmet in order to cover a front region of the safety helmet, and a visor adjuster, which is coupled to the visor so that the visor can be slid by a sliding actuation of the visor adjuster. The visor mechanism has a locking assembly coupled to the visor and the visor adjuster, which locking assembly, when locked, blocks the sliding of the visor, and which locking assembly (6), when released, allows the visor to slide. The locking assembly can be released by a release actuation of the visor adjuster. A safety helmet may include a visor mechanism of this type.

Claims

1. A visor mechanism for a safety helmet for emergency services, the visor mechanism comprising: a visor, mounted such that the visor is configured to be shifted relative to an outer shell of the safety helmet to cover a front area of the safety helmet, and with a visor adjuster, which is coupled to the visor such that the visor is configured to be moved via a sliding actuation of the visor divider, wherein the visor mechanism comprises a locking assembly coupled to the visor and the visor adjuster, which locking assembly, in a locked state, blocks a shifting of the visor and which locking assembly, in a released state, allows a shifting of the visor, and that the locking assembly is configured to be moved into the released state via a release actuation of the visor adjuster.

2. The visor mechanism according to claim 1, wherein the visor mechanism comprises a cover for fixed arrangement on the outer shell, wherein the visor is mounted such that the visor is configured to be shifted relative to the cover, such that the visor adjuster is mounted such that the visor adjuster is configured to be shifted relative to the cover.

3. The visor mechanism according to claim 2, wherein the visor is arranged under the cover and the visor adjuster is arranged on the cover, such that a shifting of the visor and/or the visor adjuster is essentially along a surface of the cover, wherein a shifting of the visor adjuster and/or the visor essentially follows a circular path.

4. The visor mechanism according to claim 1, wherein the locking assembly springs back into the locked state upon ending the release actuation, wherein the locking assembly comprises a spring assembly for pre-tensioning the locking assembly to the locked state.

5. The visor mechanism according to claim 1, wherein the locking assembly comprises a shifting element fixed to the outer shell and a shifting element coupled to the visor adjuster and received by the slide guide, wherein which shifting element comprises a blocking element, which blocking element, in the locked state, engages into the cover in a positively locking manner to block the shifting of the visor.

6. The visor mechanism according to claim 5, wherein the cover comprises a plurality of blocking structures, each blocking structure of the plurality of blocking structures being set up to receive the blocking element, wherein the plurality of blocking structures are arranged along a shifting path of the shifting element, wherein each blocking structure defines a different shifting position of the shifting element.

7. The visor mechanism according to claim 6, wherein the spring assembly is set up to pre-tension the blocking element in the direction of the plurality of blocking structures, wherein the shifting element is set up to release the blocking element from the plurality of blocking structures upon a release actuation of the visor adjuster.

8. The visor mechanism according to claim 1, wherein the visor comprises a shield which is at least partially transparent, that the shield is attached to a carrier part of the shifting element by a positive-locking fit.

9. The visor mechanism according to claim 8, wherein the shield comprises at least one shield mounting device and the carrier part comprises at least one carrier mounting device corresponding to the shield mounting device, wherein the shield mounting device and the carrier mounting device are set up to establish a positive-locking engagement with one another.

10. The visor mechanism according to claim 1, wherein the visor comprises a laser protection shield for eye protection against laser beams, wherein the shield is the laser protection shield.

11. The visor mechanism according to claim 1, wherein the visor adjuster, with a fixed arrangement of the cover on the outer shell, is configured to be shifted along a central axis in the longitudinal direction of the safety helmet, wherein the slide guide is essentially arranged around a vertex of the outer shell.

12. The visor mechanism according to claim 1, wherein the cover comprises a plurality of openings for attaching the cover to the outer shell, wherein a pair of the openings are arranged on a common axis and based on a vertical media plane of the cover are arranged opposite, wherein the opposite openings form rotary holes, which are set up for the pivoting attachment of an outer visor.

13. The visor mechanism according to claim 12, wherein the cover comprises at least two essentially opposite locking holes, for latching the outer visor, wherein the locking holes are each arranged adjacent to a rotary hole, wherein thea rotary hole with the adjacent locking hole is respectively arranged on an essentially flat section of the cover.

14. A safety helmet for emergency services, comprises: an outer shell for the distribution of impact forces and a visor mechanism attached to the outer shell according to claim 1, wherein the safety helmet comprises fastening means for attaching the cover to the outer shell.

15. The safety helmet according to claim 14, further comprising an outer visor for mechanical face protection pivotably attached to the outer shell, wherein the outer visor is attached to the outer shell by the openings, wherein the outer visor is arranged so that the outer visor is configured to cover the visor.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Further advantageous and preferred embodiments result from the following description with reference to the figures. In the drawing, which only renders an exemplary embodiment, the figures show:

[0037] FIG. 1 a perspective exploded view of an exemplary embodiment of a proposed visor mechanism,

[0038] FIG. 2 a first detailed view of the proposed visor mechanism of FIG. 1,

[0039] FIG. 3 a second detailed view of the proposed visor mechanism of FIG. 1,

[0040] FIG. 4a, b a lower view of the proposed visor mechanism of FIG. 1 with different position of the visor and the visor adjuster respectively,

[0041] FIG. 5a, b a lateral view and a top view of a proposed safety helmet with the proposed visor mechanism of FIG. 1 with the position of the visor and the visor adjuster as in FIG. 4a,

[0042] FIG. 6a, b a lateral view and a top view of a proposed safety helmet with the proposed visor mechanism of FIG. 1 with the position of the visor and the visor adjuster as in FIG. 4b and

[0043] FIG. 7a, b each a lateral view of the proposed shelter of FIG. 4 with an outer visor in different positions.

DETAILED DESCRIPTION OF THE DRAWINGS

[0044] The proposed visor mechanism shown in FIG. 1 is intended for attachment to a safety helmet for emergency services. It can also be subsequently attached to such a safety helmet. The visor mechanism includes a visor 1, which here consists of a shield 2. The shield 2 is semi-transparent and comprises laser safety properties as a laser safety protection shield.

[0045] The visor mechanism is attached to an outer shell 4 of the safety helmet in accordance with the illustration of FIGS. 5a, b and 6a, b. The visor 1 can be shifted compared to this outer shell 4, wherein the different positions of the visor 1 emerge from FIGS. 5a, b and 6a, b by this shifting. In the position in accordance with FIG. 6a, b—the extended position—the visor 1, and particularly the shield 2, covers a front area of the safety helmet.

[0046] The visor mechanism also comprises a visor adjuster 5 coupled to the visor 1 via a locking assembly 6 and a cover 7, which is arranged on the outer shell 4 fixed, so that a shifting of the visor 1 with relation to the outer shell 4 is synonymous with a shifting of the visor 1 with relation to the cover 7. Therefore, the visor 1 in the retracted position in accordance with FIG. 5a, b is covered by the cover 7 and is therefore not visible in FIG. 5a, b. In the present exemplary embodiment, the cover 7 has a front cover part 7a and a rear cover part 7b.

[0047] The visor adjuster 5 can be moved along an outer surface 8 of the cover 7, which leads to a shifting of the visor 1 along an inner surface of the cover 7.

[0048] This shifting of the visor adjuster 5 takes place essentially along a central axis 24 shown in FIG. 4a, b, which extends in a longitudinal direction of the safety helmet. Since the outer shell 4 is curved, the visor adjuster 5 also essentially follows a circular path, which can be recognized in particular from FIGS. 5a and 6a.

[0049] The locking assembly 6 consists of a slide guide 9 and a shifting element 10 received by the slide guide 9, which, in turn, consists of a carrier part 3, to which the visor 1 is attached, a locking plate 11 and a cross member 12. The locking plate 11, in turn, comprises a spring assembly 13. The locking plate 11 is positively coupled to the carrier part 3. Particularly, a projection 3a of the carrier part 3 is guided through an opening 11a formed by the locking plate 11. This connection is shown in FIG. 2.

[0050] The visor adjuster 5 is coupled to the cross member 12 of the shifting element 10 and thus to the locking assembly 6 overall.

[0051] The cover 7 has on its side facing the outer shell 4 blocking structures 15, which are formed here as essentially half-cylinder recesses, which extend along the shifting path of the shifting element 10.

[0052] The engagement of the spring assembly 13 with the slide guide 9, which can be seen in FIG. 3, causes the carrier part 3 to be pushed away from the slide guide 9 in the direction of the cover 7. Consequently, the blocking element 16 is also pressed in the direction of the cover 7. Therefore, the locking assembly 6 assumes a locked state without further external influence, in which the blocking element 16 engages into the blocking structure 15 of the cover 7 in a positively locking manner, which corresponds to the current position of the visor adjuster 5 and thus the cross member 12. The lock caused by this engagement fixes the visor 1 in the current position.

[0053] The locking assembly 6 only assumes the released state via a release actuation by the wearer of the safety helmet, in which the wearer of the safety helmet pushes the visor adjuster 5 in the direction of the outer shell 4. Due to the pressure on the visor adjuster 5—contrary to the preload of the spring assembly 13—the carrier part 3 is also moved in the direction of the outer shell 4.

[0054] In this way, the blocking element 16 is out of action with the blocking structures 15 of the cover 7. Thereby, the locking assembly 6 has assumed the released state. By actuating the visor adjuster 5 in one direction along the outer shell 4—which actuation is referred to here in contrast to the release actuation as a sliding actuation—the visor 1 can now be optionally retracted or extended, but only as long as the release actuation is maintained. Upon ending the release actuation, the blocking element 16 is re-engaged with a blocking structure 15 via the preload of the spring assembly 13 so that a further shifting of the visor 1 is prevented.

[0055] The visor mechanism also has slides 14a, b, which are connected to the cover 7 and which serve to guide the visor 1. The carrier part 3 has as projections formed carrier mounting devices 23, which snap into corresponding shield mounting devices 22 of the shield 2, which are designed as mounting openings.

[0056] The cover 7 of the exemplary embodiment shown in the drawing comprises a total of three openings 17, through which the cover 7 can be attached to the outer shell 4. Specifically, these openings 17 with corresponding drill holes of the outer shell 4 (not visible here) so that corresponding fastening means can be guided both through the openings 17 as well as through the drill holes of the outer shell 4. A pair of openings 17 is arranged on a common axis opposite in the temple area of the safety helmet while the third opening 17 is placed in a middle rear area of cover 7—particularly in the rear cover part 7b. This arrangement of the pair of openings 17 also allows, as shown in FIG. 7a, b, an outer visor 18 to be pivotably attached to the outer shell 4 and the cover 7. Accordingly, the opposite openings form 17 rotary holes 17a or can be described as a pair of the rotary holes 17a. The outer visor 18 has an outer visor shield 21 and at the upper edge of the outer visor writing 21 a seal element 20.

[0057] As can be seen in FIG. 1, a locking hole 19 of the cover 7 is arranged adjacent to a rotary hole 17a. These locking holes 19 serve to snap the outer visor 18, in particular, in the open position in accordance with the illustration of FIG. 7b. Particularly for this purpose, pin elements (not shown in the drawing) are provided, which are arranged in the locking holes 19 and partially protrude from the locking holes 19. Accordingly, the outer visor comprises 18 visor detent plates 24 with two detent recesses 25 each, wherein the detent recesses 25 in each case in different locking positions receive the pin elements for locking the outer visor 18. FIG. 7a shows the closed position of the outer visor 18. In this closed position, the visor 1 and in particular the shield 2 are covered by the outer visor 18 and thus protected.