GB2498597A

GB2498597A - Protective helmet with swivelling visor

Info

Publication number: GB2498597A
Application number: GB1207280.7A
Authority: GB
Inventors: Jan Musow; Stefan Effmann
Original assignee: Draeger Safety AG and Co KGaA
Current assignee: Draeger Safety AG and Co KGaA
Priority date: 2012-01-17
Filing date: 2012-04-26
Publication date: 2013-07-24
Anticipated expiration: 2032-04-26
Also published as: GB2498597B; FR2985642A1; CN203341067U; FR2985642B1; AU2012203255B2; GB201207280D0; GB201206236D0; DE102012000820B4; DE102012000820A1; AT12965U1; AU2012203255A1

Abstract

A protective helmet with a swivelling visor comprising a curved visor shield 3 with a first and second end piece 4, 5, each end piece being fitted with an adapter 10 which can be fixed to the end pieces 4, 5 in at least two preferential positions, as a result of which there is a change in the distance of the visor shield 3 with respect to the face of the helmet wearer 9. The adapter 10 is also part of a hinged connection of the visor shield 3 with respect to the protective helmet. The adapters may comprise pins that can be introduced into pairs of holes on the visor shield. The hinged connection is preferably an axle that can be introduced into a drill hole of the adapter. The axle may be connected to a swivelling lever 6.

Description

Protective helmet with swivelable visor The invention relates to a protective helmet with a swivelable visor.

Protective helmets with swivelable visors are known wherein the visors can be brought into the desired position by rotation points on the helmet or on the interior trim.

A protective helmet with a visor is known from GB 2 014 432 A wherein the visor can be both swiveled and also moved away from the helmet. The mechanism used for this is designed in a complicated manner and requires a large number of individual parts.

The present invention seeks to provide a protective helmet of the aforementioned kind in such a way that the visor distance from the helmet wearer's face can be changed in a straightforward manner.

The present invention is as claimed in the claims The visor shield comprises two rotation points arranged offset at a distance from one another, said rotation points being embodied by an adapter which can be fixed to the end pieces of the visor shield in two different preferential positions. The preferential positions are dimensioned in such a way that two different spacings of the visor with respect to the helmet wearer's face can be adjusted.

If a fixed reference point of the adapter about which the visor shield can be swiveled is considered, a longitudinal offset x arises for the reference point when the adapter is fixed in the H first preferential position and is then moved into the second preferential position. The adapter can be inserted into different drill-hole patterns on the end pieces of the visor shield, an individual drill-hole pattern being assigned to each preferential position and the adapter being able to be inserted in each drill-hole pattern.

The axis of rotation runs through the adapter. Different distances of the visor shield with respect to the helmet wearer's face arise depending on the fitting position of the adapter, so that an adaptation to the individual facial relationships can be carried out. As a drill-hole pattern, two pairs of holes are provided on the end pieces, which comprise two drill-holes arranged at a fixed distance from one another. The adapter has pins designed to correspond to the drill-holes, said pins being able to be inserted into the drill-holes. Two preferential positions for the fixing of the adapter arise on the end pieces of the visor shield due to the pairs of holes.

The pairs of holes are arranged on the end pieces in such a way that a first virtual line connecting the drill-holes of the first pair of holes and a second virtual line connecting the drill-holes of the second pair of holes lie with respect to one another in an angle range a between 80 degrees and 110 degrees. The scope of protection expressly covers identically operating means that enable an adapter to be fixed to the end pieces of a visor shield in at least two different preferential positions. The term pair of holes is to be understood to mean a drill-hole pattern to which an adapter can be fixed. A screw connection is also possible as an alternative to a plug-in connection. The preferential positions are selected such that different distances of the visor shield with respect to the helmet wearer's face can be achieved.

The hinged connection between the visor shield and the protective helmet is constituted such that the adapters on the two end pieces are connected in a rotary manner to the protective helmet or an interior trim of the protective helmet.

For this purpose, the adapters are provided at a predetermined point, for example in the region F of one of the pins, with a drill-hole through which the axle is inserted. The axle is advantageously connected to a swiveling lever which operates the visor shield.

An exemplary embodiment of the device according to the invention will now be described with reference to the accompanying Figures of which: Figure 1 is a schematic of an interior trim of a protective helmet with a swivelable visor shield, Figure 2 is a schematic of, as a detail, a first end piece of the visor shield, Figure 3 is a schematic, enlarged representation of the first end piece, Figure 4 is a schematic side view of the adapter, and Figure 5 is a schematic side view of the swiveling lever.

Figure 1 illustrates, in a diagrammatic representation, a protective helmet 1 with an interior trim 2 and a visor shield 3 fixed to the interior trim 2. Visor shield 3 comprises a first end piece 4 and a second end piece 5, which are attached in a hinged manner to interior trim 2, a swiveling lever 6 being provided for operation of visor shield 3. At the front side, visor shield 3 comprises a cutout 7 in the region of nose 8 of a helmet wearer 9 not represented in detail.

For the sake of greater clarity, the hinged connection of visor shield 3 is represented only on first end piece 4.

Figure 2 shows, as a detail, first end piece 4 with swiveling lever 6 and an adapter 10, which can be fitted to first end piece 4 in two positions. A corresponding adapter 10 is also provided on second end piece 5, which however is not represented in detail in the figures. A first pair of holes 11 and a second pair of holes 12 are provided in an identical manner on end pieces 4, 5.

Adapter lOin the second pair of holes 12 is located in the left-hand part of figure 2, whilst it is changed over to first pair of holes 11 in the right part of figure 2. The change-over of adapter from second pair of holes 12 into first pair of holes 11 is illustrated diagrammatically by arrow 13 in the right part of figure 2.

Figure 3 shows an enlarged representation of first end piece 4 of visor shield 3 with first pair of holes 11, second pair of holes 12 and adapter 10 inserted into the first pair of holes. As a reference point, adapter 10 has a drill-hole 14 which serves as an axis of rotation 15, figure 1, of visor shield 3 with respect to interior trim 2. Depending on whether adapter 10 is inserted into first pair of holes 11 or second pair of holes 12, a different spacing of visor shield 3 with respect to the face of helmet wearer 9 results. Distance x, which results from the longitudinal distance of the reference points from the two different fixing options for adapter 10, is illustrated diagrammatically in figure 3. If a connecting line 19 is drawn through the centre-points of the drill-holes of first pair of holes 11 and correspondingly a connecting line 19 is drawn through second pair of holes 12, connecting lines 19 enclose an angle a of approx. 80 degrees.

Figure 4 shows a side view of adapter 10. At the side facing towards visor shield 3, adapter has a first pin 16 with diameter dl and at a distance from the latter a second pin 17 with diameter d2. Drill-hole 14 is located in the middle of second pin 17. Pins 16, 17 have different diameters dl and d2, d2 being greater than dl. The effect of this is that adapter 10 can be fixed in only two preferential positions on end pieces 4, 5. Pairs of holes 11, 12 are constituted corresponding to pins 16, 17 of adapter 10.

Figure 5 illustrates a side view of swiveling lever 6. At its side facing towards adapter 10, the swiveling lever has an axle 18, which is inserted through drill-hole 14 of adapter 10 and is fixed to interior trim 2. Corresponding axles 18 are present on both end pieces 4, 5 of visor shield 3, so that axles 18 are axis of rotation 1 5 of visor shield 3 with respect to interior trim 2. -5..

Claims

<claim-text>Claims 1. A protective helmet with a swivelable visor, comprising: a curved visor shield with a first end piece and a second end piece, each end piece being fitted with an adapter, the adapters being able to be fixed to the end pieces in at least two preferential positions and in such a way that a longitudinal offset arises relative to a fixed reference point of the adapter when the adapter is moved from a first preferential position into a second preferential position; and a hinged connection at the reference point of the adapter which is connectable to the protective helmet.</claim-text> <claim-text>2. The protective helmet according to claim 1, in which the adapter comprises pins which can be introduced into pairs of holes on the end pieces of the visor shield, at least a first pair of holes for the first preferential position being provided on each end piece of the visor shield and, at a distance therefrom, a second pair of holes being provided for the second preferential position.</claim-text> <claim-text>3. The protective helmet according to claim 2, in which the pairs of holes comprise two drill-holes arranged at a fixed distance from one another, into which the pins can be introduced, and that a virtual line (19) connecting the drill-holes of the first pair of holes and a connecting line connecting the drill-holes of the second pair of holes are in an angle range between 80 degrees and 110 degrees.</claim-text> <claim-text>4. The protective helmet according to any one of claims 1 to 3, including an axle that can be introduced into a drill-hole of the adapter is constituted as a hinged connection, said axle being connected to an interior trim of the protective helmet or to the protective helmet itself.</claim-text> <claim-text>5. The protective helmet according to claim 4, in which the drill-hole runs inside one of the pins of the adapter.</claim-text> <claim-text>6. The protective helmet according to claim 4 or 5, in which in axle is connected to a swiveling lever operating the visor shield.</claim-text> <claim-text>7. The protective helmet according to claim 6, in which a swiveling lever is present on each of the end pieces.</claim-text> <claim-text>8. The protective helmet according to any one of claims 2 to 7, in which the drill-holes of the pair of holes have different diameters and the pins of the adapter are constituted corresponding thereto.</claim-text> <claim-text>9. The protective helmet substantially as hereinbefore described with reference to, and/or as shown in, the accompanying drawings.</claim-text>