INNER SYSTEM FOR A SAFETY HELMET

Abstract

The present invention relates to an inner system (10) for a protective helmet (1), comprising: (a) a substantially circumferential headband (11), the circumference of the headband (11) being variably adjustable, (b) at least a first (14a), a second (14b) and a third (14c) tab, the headband (11) being connected to the at least three tabs, and (c) at least a first (12a), a second (12b) and a third (12c) adhesive element, wherein the first adhesive element (12a) is adapted to be connected to the first tab (14a), wherein the second adhesive element (12b) is adapted to be connected to the second tab (14b), and wherein the third adhesive element (12c) is adapted to be connected to the third tab (14c).

Claims

1. Inner system for a protective helmet, comprising: (a) a substantially circumferential headband, the circumference of the headband being variably adjustable, (b) at least a first, a second and a third tab, wherein the headband is connected to the at least three tabs, and (c) at least a first, a second and a third adhesive element, wherein the first adhesive element is adapted to be connected to the first tab, wherein the second adhesive element is arranged to be connected to the second tab, and wherein the third adhesive element is arranged to be connected to the third tab.

2. Inner system according to claim 1, wherein none of the tabs comprises an engagement or penetrating element or a receptacle formed for an engagement or penetrating element.

3. Inner system according to claim 1, wherein the first adhesive element can be connected to the first tab in a releasable adhesive connection, wherein the second adhesive element can be connected to the second tab in a releasable adhesive connection, and wherein the third adhesive element can be connected to the third tab in a releasable adhesive connection.

4. Inner system according to claim 1, wherein the circumference of the headband can be adjusted by an adjustment system and wherein the adjustment system is actuated by a rotary knob.

5. Inner system according to claim 1, wherein the first tab has a first connection point, wherein the headband is connected to the first strap at the first connection point; wherein the first tab further comprises a second connection point, wherein the first tab is adapted to be connected to the first adhesive element at the second connection point, and wherein the first connection point is spaced apart from the second connection point so that the headband can be attached to the first adhesive element in a floating manner via the first tab.

6. Inner system according to claim 5, wherein the first tab is attached to a first intermediate element at the second connection point, and wherein the first intermediate element can be attached to the first adhesive element in a releasable adhesive connection, so that the first tab can be indirectly attached to the first adhesive element in a releasable adhesive connection.

7. Inner system according to claim 6, wherein the first tab is sewn to the first intermediate element at the second connection point.

8. Inner system according to claim 1, wherein the releasable adhesive connection of the first and/or the second and/or the third adhesive element comprises a hook-and-loop fastener.

9. Inner system according to claim 1, further comprising a head net.

10. Protective helmet, comprising: a dome, an inner system having: a substantially circumferential headband, the circumference of the headband being variably adjustable, a first, a second and a third tab, wherein the headband is connected to the at least three tabs; and a first, a second and a third adhesive element; wherein the first adhesive element is adapted to be connected to the first tab; wherein the second adhesive element is arranged to be connected to the second tab; wherein the third adhesive element is arranged to be connected to the third tab; and (c) wherein each of the adhesive elements of the inner system is attached to the dome.

11. Protective helmet according to claim 10, wherein each of the adhesive elements is attached to the dome without an element engaging or penetrating the dome.

12. Protective helmet according to claim 10, wherein each of the adhesive elements is attached to the dome via an adhesive connection.

13. Protective helmet according to claim 10, further comprising a harness system, wherein the harness system is attached to the dome via a detachable adhesive connection.

14. Safety helmet according to claim 13, wherein the harness system comprises: (a) a left rear strap, (b) a right rear strap, (c) a left front strap, (d) a right front strap, and (e) a chin area in which the left rear strap, the right rear strap, the left front strap and the right front strap are releasably connected to each other so that the harness system can be opened.

15. Protective helmet according to claim 10, wherein the dome comprises titanium, polyethylene-titanium, aramid-titanium, and/or a polyethylene-carbon-aramid material.

Description

4. BRIEF DESCRIPTION OF THE FIGURES

[0095] FIG. 1a shows a section of a protective helmet according to the invention,

[0096] FIG. 1b shows a view from below of the protective helmet in FIG. 1a;

[0097] FIGS. 2a to 2e show an embodiment of a protective helmet according to the invention;

[0098] FIG. 3a shows a front view from the front to the rear of a protective helmet according to the invention,

[0099] FIG. 3b shows a rear view of the protective helmet in FIG. 3a,

[0100] FIG. 3c shows a top view of the protective helmet of FIGS. 3a and 3b,

[0101] FIG. 3d shows a rear view of the protective helmet of FIGS. 3a to 3c,

[0102] FIG. 3e shows a front view of the protective helmet in FIGS. 3a to 3d,

[0103] FIG. 3f shows a top view of the protective helmet of FIGS. 3a to 3e,

[0104] FIG. 3g shows a rear view of the protective helmet of FIGS. 3a to 3f;

[0105] FIGS. 4a and 4b show an embodiment of a protective helmet according to the invention comprising a damping ring; and

[0106] FIGS. 5a to 5d show an inner system according to the invention comprising a head net comprising a first and second flat belt.

5. DETAILED DESCRIPTION OF THE FIGURES

[0107] FIG. 1a shows a section of a protective helmet 1 according to the invention. The protective helmet 1 comprises (a) a dome 16, (b) an inner system 10, (c) wherein each of the adhesive elements 12a, 12b, 12c of the inner system is attached to the dome 16.

[0108] The inner system 10 comprises: [0109] (a) a substantially circumferential headband 11, the circumference of the headband 11 being variably adjustable, [0110] (b) at least a first tab 14a, a second tab 14b and a third tab 14c, wherein the headband 11 is connected to the at least three tabs, and [0111] (c) at least a first adhesive element 12a, a second adhesive element 12b and a third adhesive element 12c, [0112] wherein the first adhesive element 12a is arranged to be connected to the first strap 14a, [0113] wherein the second adhesive element 12b is arranged to be connected to the second strap 14b and [0114] wherein the third adhesive element 12c is arranged to be connected to the third strap 14c. The second tab 14b and the third tab 14c as well as the second adhesive element 12b and the third adhesive element 12c are present in the protective helmet 1 of FIG. 1a, but are not shown in the view of FIG. 1a. However, their position is shown in the view of FIG. 1b. Furthermore, a fourth strap 14d and a fourth adhesive element 12d are present (see FIG. 1b).

[0115] The circumference of the headband 11 is adjusted by an adjustment system (see FIG. 1b), which is operated by a rotary knob. The headband 11 has a width of approximately 2.5 cm and is made of leather. The protective helmet is a ballistic protective helmet and has a bullet-resistant dome made of titanium. It is also possible that the dome comprises PE-titanium, aramid-titanium, PE-carbon-aramid or similar hybrid configurations. PE stands for polyethylene.

[0116] The protective helmet offers excellent balance and outstanding protection against projectiles as well as slashing and stabbing weapons. It can be manufactured in just one size and still fits the vast majority of adult wearers. The size can be adjusted very quickly and comfortably thanks to the adjustable headband.

[0117] In the example shown, all three adhesive elements 12 are glued into the spherical cap 16.

[0118] The straps 14 are attached to the headband 11 via rivets. The first tab 14a is attached to the headband 11 via a rivet 21. However, it is also possible to make the tabs integral with the headband 11 or to connect them to the headband 11 via a seam, for example.

[0119] The tabs 14 are elongated and thus allow a certain distance between the adhesive elements and the headband 11.

[0120] The inner system 10 can be attached to the helmet dome 16 without an engagement or reach-through element and therefore offers optimum head protection.

[0121] In this example, the first adhesive element 12a can be connected to the first tab 14a in a detachable adhesive connection, furthermore, the second adhesive element 12b can be connected to the second tab 14b in a releasable adhesive connection, furthermore, the third adhesive element 12c can be connected to the third tab 14c in a releasable adhesive connection.

[0122] However, it is also possible for the adhesive element to be connected to the tabs in a form-fit, for example via rivets.

[0123] The first tab 14a has a first connection point 31, wherein the headband 11 is connected to the first tab 14a at the first connection point 31; wherein the first tab 14a further has a second connection point 32, wherein the first tab 14a is adapted to be connected to the first adhesive member 12a at the second connection point 32, and wherein the first connection point 31 is spaced apart from the second connection point 32 so that the headband 11 can be floatingly attached to the first adhesive member 12a via the first tab 14a. In this example, the distance between the first connection point 31 and the second connection point 32 is approximately 4 cm. The second strap 14b and the third strap are correspondingly connected to the second adhesive element 12b and the third adhesive element 12c, respectively.

[0124] The detachable adhesive connections are indirect connections. Thus, the first tab 14a is attached to a first intermediate element 13a at the second connection point 32 and the first intermediate element 13a is attached to the first adhesive element 12a in a detachable adhesive connection. In this example, the first tab 14a is attached to the first intermediate element 13a at the second connection point 32 via a rivet 22. The same applies to the second 14b and third 14c tabs.

[0125] The fourth strap 14d is arranged in a front area of the protective helmet 1 and is Y-shaped. The fourth strap 14d is connected to the headband 11 at a seventh connection point (not shown). The fourth strap 14d is attached to the fourth intermediate element 13d at an eighth connection point 33 and a ninth connection point 34. The fourth intermediate element 13d is in turn attached to the fourth adhesive element 12d via a detachable adhesive connection.

[0126] Alternatively, it is possible to attach the tabs 14 to the intermediate elements 13 via a seam connection.

[0127] The detachable adhesive connection of the first adhesive element 12a to the first intermediate element 13a comprises a hook-and-loop fastener. The first adhesive element 12a has a hook tape, while the first intermediate element 13a has a corresponding loop tape. The arrangement can also be reversed. This has the advantage that the user can easily keep the components apart during assembly. The safety of not hooking anything incorrectly can also be ensured or further improved, for example, by a defined shape of the hook and loop elements.

[0128] The inner system 10 also has a head net 17, which has a large number of openings 18. The head net 17 is knitted. The head net 17 is stretched between an upper left upholstery element 19a and an upper right upholstery element 19b. The left and right upper padding elements 19a and 19b each have two ventilation channels. These are formed by a different thickness/leveling of the left/right upholstery element 19a, 19b. This has the advantage of improving ventilation and thus wearing comfort.

[0129] FIG. 1b shows a view from below of the protective helmet in FIG. 1a.

[0130] The protective helmet of FIGS. 1a and 1b has four intermediate elements 13a to 13d, four adhesive elements 12a to 12d and four straps 13a to 13d. The view in FIG. 1b shows the four intermediate elements 13a to 13d of the inner system 10 of the protective helmet 1. The adhesive elements 12a to 12d are present but partially concealed by the intermediate elements 13a to 13d. The adhesive elements 12a to 12d are arranged on the left 91, rear 92, right 93 and front 94, respectively, on the dome. Accordingly, the first tab 13a is arranged on the left 91, the second tab 13b is arranged at the rear 92, the third tab 13c is arranged on the right 93 and the fourth tab 14d is arranged at the front 94. The second tab 13b (rear 92) and the fourth tab 13d (front 94) are Y-shaped.

[0131] The adjustment system by means of which the circumference of the headband 11 can be adjusted is also shown. The adjustment system comprises a rotary knob 51. In this example, the headband 11 is essentially circumferential. In this example, the headband 11 is circumferential, with the exception of the adjustment mechanism. The headband 11 runs through the adjustment mechanism.

[0132] As can be seen in FIG. 1b, the protective helmet also has a harness system 41. The harness system 41 is attached to the dome separately from the inner system. The harness system 41 also engages around the adjustment system, which is arranged in a rear area.

[0133] The protective helmet 1 also has a front padding element 15. In the embodiment example of FIGS. 1a and 1b, the front padding element 15 is arranged in a front area of the protective helmet 1. Other or alternative positions are possible in principle and are shown in FIGS. 2 and 3.

[0134] The protective helmet 1 of FIG. 1 comprises a fitbox 54. The fitbox 54 comprises the length adjustment mechanism of the headband 11. Possible configurations of the fitbox 54 are described in more detail below. Since the lower back of the head is anatomically undercut where the fitbox 54 is located, a clamping effect is created which prevents the headband 11 and the dome 16 from detaching upwards from the head.

[0135] FIGS. 2a to 2e (together: FIG. 2) show an alternative design of a protective helmet 1. The protective helmet 1 of FIG. 2 is similar to the protective helmet 1 of FIG. 1. To avoid repetition, reference is therefore made to the above description. However, the dome 16 of the protective helmet 1 in FIG. 2 is designed differently to the dome 1 of the protective helmet 1 in FIG. 1. The dome 16 of the protective helmet 1 in FIG. 2 ensures improved protection of the particularly sensitive area around the ears, especially behind the ears, as it extends significantly lower over the wearer's ears. The protective helmet 1 of FIG. 2 comprises a fitbox 54. The fitbox 54 comprises the length adjustment mechanism of the headband 11. Possible configurations of the fitbox 54 are described in more detail below. The fitbox 54 comprises two retaining tabs 56a, 56b for a left rear strap 42 and a right rear strap 43 of a harness system.

[0136] FIG. 2c shows the harness system 41 of the protective helmet 1. The exemplary harness system 41 comprises: [0137] (a) a left rear strap 42, (b) a right rear strap 43, (c) a left front strap 44, (d) a right front strap 45, and (e) a chin portion 47 in which the left rear strap 42, the right rear strap 43, the left front strap 44 and the right front strap 45 are releasably connected to each other so that the harness system can be opened.

[0138] In this example, the detachable connection for opening the harness system is effected by a fastener 46, in this case: a buckle 46. The length of the left rear strap 42, the right rear strap 43, the left front strap 44, and the right front strap 45 can be adjusted. This ensures an optimum fit. In this example, the length can be adjusted using a buckle 48 in each case.

[0139] The first adhesive element 12a and the corresponding first strap 14a are arranged on a left side 91 of the protective helmet 1. The second adhesive element 12b and the corresponding second strap 14b are arranged at the rear 92 of the hard hat 1. The third adhesive element 12c and the corresponding third strap 14c are arranged on a right-hand side 93 of the protective helmet 1. A fourth adhesive element and a corresponding fourth strap are arranged at the front 94 of the protective helmet 1 (see FIG. 2b).

[0140] The inner system 10 has a head net 17. The head net 17 is attached directly to the dome 16 via a first head net fastening element 81 and a second head net fastening element 82. In this example, the fastening comprises a hook-and-loop fastener. Directly in this context means that the first 81 and second 82 head net fastening elements are fastened directly to the dome 16 (i.e. not only via intervening objects such as the headband 11). The headband 11 is not a head net fastening element.

[0141] The head net 17 is attached to a left side 91 of the dome 16 via a first head net fastening element 81 and attached to a right side 93 of the dome 16 via a second head net fastening element 82 (see FIG. 2e). The first 81 and second 82 head net fastening elements passrespectivelythrough a first and second opening, in the form of a gap, in the headband 11 (see FIG. 2e).

[0142] In this example, the head net 17 is additionally fastened to the pad 15 and the headband 11 via a third head net fastening element 83 on the left side 91 of the protective helmet 1. In this example, the head net 17 is additionally attached to the pad 15 and the headband 11 via a fourth head net attachment element 84 on the right side 93 of the protective helmet 1 (see FIG. 2d). In other words, in this example, the third head net fastening element 83 and the fourth head net fastening element 84 connect the head net 17 indirectly to the dome 16 via the headband 11. In this example, the fastening comprises a hook-and-loop fastener.

[0143] However, it is also possible, without changing the third 83 and fourth 84 fastening elements, that the head net 17 is fastened directly to the dome 16 on a left side 91 and is fastened directly to the dome 16 via a fourth head net fastening element 84 on a right side 93.

[0144] The head net 17 is attached to the second tab 14b (rear 92) via a suspension 85 (see FIG. 2e). The head net 17 is attached directly to the fourth tab 14d (front 94) via a rivet 86 (see FIG. 2d). However, other types of attachment are also possible.

[0145] FIG. 3a shows a rear view from the back to the front of a protective helmet 1 according to the invention. FIG. 3b shows a front view of the protective helmet 1 of FIG. 3a and FIG. 3c shows a top view from above of the protective helmet 1 of FIGS. 3a and 3b. The protective helmet of FIGS. 3a to 3g is similar to that of FIGS. 1a and 1b, particularly with regard to the inner system 11 and its attachment to the dome 16.

[0146] FIGS. 3a to 3d show in particular the harness system 41 of the protective helmet. The exemplary harness system 41 comprises: [0147] (a) a left rear strap 42, (b) a right rear strap 43, (c) a left front strap 44, (d) a right front strap 45, and (e) a chin area in which the left rear strap 42, the right rear strap 43, the left front strap 44 and the right front strap 45 are releasably connected to each other so that the harness system can be opened.

[0148] The harness system 41 is connected to the dome 16 via a detachable adhesive connection, in this example a hook-and-loop connection. The harness system 41 is connected to the dome 16 separately from the inner system 11. However, it is also possible that the harness system 41 is connected to the dome 16 at one or more identical points as the inner system 11.

[0149] FIGS. 3a to 3g show that the headband 11 is essentially circumferential. In particular, FIG. 3c illustrates a first circumference 52 and a smaller second circumference 53 of the headband 11. As can be seen, the headband is shortened by adjusting the circumference of the headband 11 from all sides. Due to the advantageous inner system, the head remains centered even with the smaller circumference 53 and is not displaced forward-unlike with inner systems from the prior art.

[0150] FIG. 3c also shows the fitbox 54, on which the rotary knob 51 for adjusting the length of the headband 11 is mounted. In this example, the fitbox 54 is constructed in two parts. This has the advantage that the headband 11 with the width adjustment can be fitted easily using the rotary knob. The fitbox 54 can be opened for this purpose, the headband 11 can be arranged in the fitbox 54 in a second step and finally the fitbox 54 is closed.

[0151] The fitbox 54 also has a large number of drainage holes 55. In this example, there are seven drainage holes 55, of which only two have been provided with the reference sign 55 as an example. During intensive use, dirt often collects inside the fitbox 54. In order to prevent damage or blockage of the length adjustment mechanism, the fitbox 54 can be cleaned with water or cleaning agents. The drainage holes 55 are used to drain the water and/or cleaning agent. This improves the service life and reliability of the fitbox 54 and the length adjustment mechanism it contains.

[0152] FIG. 3d illustrates the operation of the rotary knob 51 for adjusting the length of the headband 11. Retaining tabs 56a, 56b are arranged on the fitbox 54 on one left and one right side of the rotary knob. This has the advantage that the left rear strap 42 can be ergonomically guided around the fitbox 54 by the retaining tab 56a and the right rear strap 43 by the retaining tab 56b. This improves the wearing comfort and fit of the helmet.

[0153] FIG. 3e shows part of the length adjustment mechanism 61 of the fitbox 54. The length adjustment mechanism 61 comprises an inner wheel 62, which is arranged in a receptacle 63. The holder 64 comprises a fine grating at one edge area. When the rotary knob 51 is actuated, the wheel 62 rotates, which causes the length of the headband 11 to be adjusted. The arrows illustrate an extension of the headband, which is effected evenly on all sides around the head so that the wearer's head always remains centered.

[0154] FIG. 3f shows an inner view of the protective helmet 1. The protective helmet 1 comprises a left 19a and right 19b upper padding element, which is arranged over the head when worn. A head net 17 is stretched between the left 19a and right 19b upper padding element.

[0155] The left and right padding elements 19a, 19b are attached to the headband 11 with a hook-and-loop fastener. However, another type of fastening is possible. Adjusting the length of the headband 11 therefore also affects the left and right padding elements 19a, 19b. The harness system 41 described above is also indirectly connected to the headband 11. Thus, the rear left strap 42 and the rear right strap 43 are guided around the fitbox 54 via retaining tabs 56a, 56b.

[0156] The inner system 10 has a head net 17. The head net 17 is attached directly to the dome 16 via a first head net fastening element 81 on a left side 91 and a second head net fastening element 82 on a right side 93. In this example, the head net 17 is additionally attached directly to the dome 16 via a third head net attachment element 83 on a left side 91 and is attached directly to the dome 16 via a fourth head net attachment element 84 on a right side 93.

[0157] In this example, the attachment comprises a hook and loop fastener. Directly in this context means that the first 81, second 82, third 83 and fourth 84 head net fastening elements are attached directly to the dome 16 (i.e. not just via intervening objects such as the headband 11). The headband 11 is not a head net fastening element.

[0158] The first 81, second 82, third 83, and fourth 84 head net fastening element can, for examplerespectivelypass through a first, second, third, fourth opening, in the form of a gap, in the headband 11.

[0159] If the headband is shortened (as indicated by the arrows), the headband also pushes the head downwards from above and upwards from below and therefore remains centered in the vertical direction. This improves the protective effect of the protective helmet 1.

[0160] FIG. 3g shows that the protective helmet 1 also has a rear padding element 20 and a front padding element 15. The front padding element 20 protects the wearer's forehead from injury and is attached to the headband 11 with a hook-and-loop fastener. The rear padding element 20 is also attached to the headband 11 with a hook-and-loop fastener. A different type of fastening is possible.

[0161] FIGS. 4a and 4b (together: FIG. 4) show an alternative protective helmet 1 that is similar to the protective helmet 1 in FIG. 3. Unlike the protective helmet 1 in FIG. 3, the protective helmet in FIG. 4 has an additional shock absorber ring 70.

[0162] FIG. 4a is similar to FIG. 3a. FIG. 4b is similar to FIG. 3c. FIGS. 4a and 4b show a damper ring 70, which is arranged over a part of the headband 11 (see FIG. 4b). The damper ring 70 comprises a plurality of ventilation cams 71 and projections 72, which are arranged alternately. In this example, the damper ring 70 comprises a foam material, for example ethylene-vinyl acetate copolymers, EVA.

[0163] The shock absorber ring 70 significantly improves the wearing comfort and increases the protective effect of the protective helmet 1. The shock absorber ring 70 is attached to the headband 11 so that it is always ensured that the shock absorber ring 70 covers the headband 11 even when the helmet is adjusted by adjusting the length of the headband. In this example, the fastening comprises a hook-and-loop fastener.

[0164] FIGS. 5a to 5d show an inner system 10 according to the invention, which comprises a first 111 and second 112 flat band. The inner system 10 is for a protective helmet. The dome is not shown in order to better illustrate some details of the inner system.

[0165] The inner system 10 comprises: [0166] (a) a substantially circumferential headband 11, the circumference of the headband 11 being variably adjustable, [0167] (b) at least a first tab, a second tab and a third tab, wherein the headband 11 is connected to the at least three tabs, and [0168] (c) at least a first adhesive element 12a, a second adhesive element 12b and a third adhesive element 12c, [0169] wherein the first adhesive element 12a is arranged to be connected to the first tab, [0170] wherein the second adhesive element 12b is arranged to be connected to the second tab and [0171] wherein the third adhesive element 12c is arranged to be connected to the third tab. Furthermore, a fourth tab and a fourth adhesive element 12d are provided.

[0172] FIG. 5a shows a view from above. FIG. 5b shows a perspective view from the front. The first adhesive element 12a and the corresponding first tab are arranged on a left side 91 of the inner system 10. The second adhesive element 12b and the corresponding second tab are arranged at the rear 92 of the inner system 10. The third adhesive element 12c and the corresponding third tab are arranged on a right-hand side 93 of the inner system 10. A fourth adhesive element and a corresponding fourth tab are arranged at the front 94 of the inner system 10.

[0173] The inner system comprises a head net 17, which can be attached in various ways to the headband 11 and/or to a dome of a protective helmet.

[0174] The head net comprises a flat band 111, 112. In this example, the head net comprises a first 111 and a second 112 flat band, wherein the first flat band 111 and the second flat band 112 are arranged substantially perpendicular to each other. In this example, two intersecting edges of the first 111 and second 112 flat bands form an angle a 119 of about 85 to 95. However, the angle a 119 can also be between 45 and 135, for example.

[0175] The flat bands 111, 112 comprise a textile whose width 117, 118 is considerably greater than its thickness. In this case, the first flat band 111 has a first width 117 of approximately 2 cm. In this case, the second flat band 112 comprises a second width 118 of about 2 cm. The first 111 and second 112 flat bands are only 1-2 mm thick. The flat bands 111, 112 are arranged in the apex region.

[0176] The first flat band 111 comprises a first longitudinal axis 115. The second flat band 112 comprises a second longitudinal axis 116. The first 111 and second 112 flat bands improve positioning of the head along these two longitudinal axes 115, 116. In particular, the flat bands 111, 112 angle centrally so that positioning is thereby improved.

[0177] The first longitudinal axis 115 runs substantially from a front 94 to a rear 92. The second longitudinal axis 116 runs substantially from a right side 93 to a left side 91. Substantially means within the scope of variations customary in the art for soft components of inner systems for protective helmets, comprising variations of about 20.

[0178] The first 111 and second 112 flat strips intersect at a central intersection 120.

[0179] FIGS. 5c and 5d illustrate the excellent balance (an example of best balance) of the inner system 10 according to the invention. The imaginary line 121 serves to illustrate the position of the inner system in two different positions.

[0180] FIG. 5c shows a first (original) position of the inner system in which the adhesive element 12a is displaced backwards 92.

[0181] FIG. 5d shows a second (greatly exaggerated) position of the inner system in which the adhesive element 12a is displaced far forward 94.

[0182] Due to the weight of the dome, the dome tends to orient itself towards the front 94 via the lever arrangement of the side tabs 14a, 14c. The straps 14a to 14d attached to the headband 11 ensure that the helmet dome is always positioned centrally on all sides during any size adjustment. This is particularly important if the inner system is attached to the helmet dome via adhesive elements, as this type of attachment requires particularly good centering. Only a few possible embodiments of the invention have been described above by way of example. It should be understood that these exemplary embodiments can be modified and combined with each other in a variety of ways if they are compatible, and that certain features can be omitted if they appear to be dispensable.

[0183] The scope of protection is determined by the patent claims and is not limited by the embodiments.

REFERENCE SIGNS

[0184] 1 protective helmet [0185] 10 inner system [0186] 11 headband [0187] 12a, 12b, 12c, 12first second, third, fourth adhesive element [0188] 13a, 13b, 13c, 13first second, third, fourth intermediate element [0189] 14a, 14b, 14c, 14first second, third, fourth tab [0190] 15 front padding element [0191] 16 dome [0192] 17 head net [0193] 18 opening [0194] 19a left upper padding element [0195] 19b right upper padding element [0196] 20 rear padding element [0197] 21 rivet [0198] 22 rivet [0199] 31 first connection point [0200] 32 second connection point [0201] 33 eighth connection point [0202] 34 ninth connection point [0203] 41 harness system [0204] 42 left rear strap [0205] 43 right rear strap [0206] 44 left front strap [0207] 45 right front strap [0208] 46 buckle [0209] 47 chin area [0210] 48 buckle [0211] 51 rotary knob [0212] 52 first circumference [0213] 53 second circumference [0214] 54 fitbox [0215] 55 drainage holes [0216] 56 retaining tabs [0217] 57 ventilation duct [0218] 61 length adjustment mechanism [0219] 62 inner cog [0220] 63 receptacle [0221] 64 fine grating [0222] 70 damper ring [0223] 71 ventilation cam [0224] 72 projection [0225] 81 first head net fastening element [0226] 82 second head net fastening element [0227] 83 third head net fastening element [0228] 84 fourth head net fastening element [0229] 85 suspension [0230] 86 riveting [0231] 91 left side [0232] 92 rear [0233] 93 right side [0234] 94 front [0235] 101 first opening [0236] 102 second opening [0237] 111 first flat belt [0238] 112 second flat band [0239] 113 first edge [0240] 114 second edge [0241] 115 first longitudinal axis [0242] 116 second longitudinal axis [0243] 117 first width [0244] 118 second width [0245] 119 angle [0246] 120 intersection [0247] 121 imaginary line