Abstract
Child restraint device, in particular child seat and impact shield, for mounting in a vehicle. The device can include at least one airbag with at least one inflatable gas bag. The gas bag is transferable from a non-inflated state to an inflated state. At least one guiding device for guiding a gas flow during the transfer from the non-inflated to the inflated state is associated with the at least one inflatable gas bag.
Claims
1. A child restraint device, including a child seat or an impact shield for mounting in a vehicle, the device comprising at least one airbag with at least one inflatable gas bag, wherein the at least one inflatable gas bag is transferable from a non-inflated state to an inflated state; wherein at least one guiding device for guiding a gas flow during transfer from a non-inflated to an inflated state is associated with the at least one inflatable gas bag.
2. The child restraint device according to claim 1, wherein the at least one guiding device comprises at least one local fixation of at least a section of an inner wall of the at least one inflatable gas bag.
3. The child restraint device according to claim 1, wherein the at least one inflatable gas bag comprises a contact wall section which can be contacted from an outside and a support wall section on which the at least one inflatable gas bag is supported on a support device of the child restraint device, wherein the at least one guiding device comprises a local fixation of the contact wall section and the support wall section to one another.
4. The child restraint device according to claim 1, wherein the at least one guiding device comprises at least one sewing or riveting or bonding or welding.
5. The child restraint device according to claim 1, wherein a channel or several channels or a partition wall or several partition walls are formed by the at least one guiding device, at least in the inflated state.
6. The child restraint device according to claim 1, wherein the at least one inflatable gas bag has a gas inlet or a gas outlet of a gas generator of the at least one airbag and is located inside the at least one inflatable gas bag, wherein the at least one inflatable gas bag comprises a proximal area formed by a surrounding of the gas inlet or the gas outlet and at least one distal area remote from the gas inlet or the gas outlet, wherein the at least one guiding device guides the gas flow from the proximal area in a direction of the at least one distal area.
7. The child restraint device according to claim 1, wherein the at least one inflatable gas bag is supported on a support device, wherein the at least one guiding device comprises at least one structured channel-like depression of the support device, wherein the at least one structured channel-like depression is at least partially associated with a corresponding structuring of the at least one inflatable gas bag, such that at least one web of the support device is at least partially in alignment with at least one fixation or approximation of two inner wall sections.
8. The child restraint device according to claim 1, wherein at least one inflatable gas bag is arranged at a front area of the child seat, an underside of a seat of the child seat, or an underside of a base of the child seat.
9. The child restraint device according to claim 1, wherein the child restraint device is the impact shield, wherein at least one gas bag is attached to the impact shield or wherein the impact shield is formed at least in sections from a soft or foamed material, or is formed at least in sections from a harder or non-foamed, material.
10. The child restraint device according to claim 1, wherein the child restraint device is the impact shield, wherein a gas generator is arranged in a receptacle of the impact shield, which receptacle is formed at least partially from soft or foamed material, or is fixed in force-fit manner, by clamping mounting or in a form-fit or material-fit manner or, is loosely connected to an impact shield main body.
11. The child restraint device according to claim 1, wherein the child restraint device is the impact shield, wherein the impact shield has a left impact shield section, a right impact shield section and a center impact shield section located between the left impact shield section and right impact shield section, wherein at least one gas bag is attached to the center impact shield section.
12. A child restraint device comprising including a child seat or an impact shield, for mounting in a vehicle, the device comprising at least one airbag with at least one inflatable gas bag and at least one gas generator, wherein the at least one inflatable gas bag is transferable from a non-inflated state to an inflated state, wherein the at least one gas generator is arranged in an interior of the at least one inflatable gas bag or on an underside or front side of the at least one inflatable gas bag or wherein at least one gas inlet opening into the at least one inflatable gas bag is arranged in a lower area or a front area of the at least one inflatable gas bag.
13. The child restraint device according to claim 12, wherein the at least one gas generator is not arranged on an upper side or not on a rear side of the at least one inflatable gas bag or wherein a gas inlet opening into the at least one inflatable gas bag is not arranged in an upper area or not in a rear area of the at least one inflatable gas bag.
14. The child restraint device according to claim 12, wherein the at least one inflatable gas generator is arranged to extend horizontally or transversely to a direction of view of a child or a direction of travel.
15. A child restraint device including a child seat or an impact shield, for mounting in a vehicle, the device comprising at least one airbag with at least one inflatable gas bag and at least one gas generator, wherein the at least one inflatable gas bag is transferable from a non-inflated state to an inflated state, wherein at least one pressure-limiting device is associated with the at least one inflatable gas bag in such a way that, when a predetermined pressure is reached or exceeded at least locally, a pressure relief by flowing out of gas out of the at least one inflatable gas bag takes place.
16. The child restraint device according to claim 15, wherein, if an event that causes triggering takes place, the pressure relief occurs at least in a lower or rear area of the gas bag or at an edge of the gas bag.
17. The child restraint device according to claim 15, wherein the at least one pressure-limiting device is arranged in a vicinity of a gas inlet opening into the at least one inflatable gas bag or at a same height as the gas inlet opening.
18. The child restraint device according to claim 15, wherein the at least one pressure-limiting device comprises at least one predetermined breaking point or a predetermined tearing point or a tear seam, or at least one valve.
19. The child restraint device according to claim 15, wherein the predetermined pressure is at least 3 bar or at most 25 bar.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0135] In embodiments, the child seat does not comprise a support foot (however, such a foot may be provided).
[0136] The gas generator is preferably a cold gas generator.
[0137] Further embodiments are apparent form the dependent claims.
[0138] In the following, the invention is explained with reference to the figures also with regard to further features and advantages. Hereby show:
[0139] FIG. 1 a schematic representation of an airbag according to the prior art;
[0140] FIG. 2 a cross-section of an impact shield according to the invention;
[0141] FIG. 3 a cross-section analogous to FIG. 2 of a further embodiment of an impact shield according to the invention;
[0142] FIG. 4 an illustration analogous to FIG. 2 of a further embodiment of an impact shield according to the invention;
[0143] FIG. 5 an illustration analogous to FIG. 2 of a further embodiment of an impact shield according to the invention;
[0144] FIG. 6 an illustration analogous to FIG. 2 of a further embodiment of an impact shield according to the invention;
[0145] FIG. 7 an illustration analogous to FIG. 2 of a further embodiment of an impact shield according to the invention;
[0146] FIG. 8 an oblique view of a child seat according to the invention;
[0147] FIG. 9 a top view of the child seat according to FIG. 8;
[0148] FIG. 10 a further embodiment of a child seat according to the invention in an oblique view;
[0149] FIG. 11 the child seat according to FIG. 10 in a view from below;
[0150] FIG. 12 a child seat according to the invention, partially in cross-section, in a side view;
[0151] FIG. 13 the child seat according to FIG. 12 with inflated airbag;
[0152] FIG. 14 a schematic representation of a gas bag according to the invention with gas generator;
[0153] FIG. 15 a schematic representation of a further gas bag according to the invention with gas generator;
[0154] FIG. 16 a schematic representation of a further gas bag according to the invention with gas generator;
[0155] FIG. 17 a schematic representation of a gas bag according to the invention with gas generator;
[0156] FIG. 18 a schematic representation of a second gas bag according to the invention with gas generator;
[0157] FIG. 19 a schematic representation of a further gas bag according to the invention with gas generator;
[0158] FIG. 20 a schematic representation of a further embodiment according to the invention of the gas bag with gas generator;
[0159] FIG. 21 a schematic representation of a further embodiment according to the invention of a gas bag with gas generator;
[0160] FIG. 22 a schematic representation of a cross-section of the gas bag 71 according to FIG. 21;
[0161] FIG. 23 a schematic representation of a cross-section of the gas bag analogous to FIG. 22 according to a further embodiment;
[0162] FIG. 24 an oblique representation of an impact shield according to the invention;
[0163] FIG. 25 a representation of the impact shield according to FIG. 23, partially in exploded view;
[0164] FIG. 26 a schematic representation of a further embodiment according to the invention of a gas bag with gas generator;
[0165] FIG. 27 a detail of the embodiment according to FIG. 26; and
[0166] FIG. 28 a variant of the detail according to FIG. 27.
DETAILED DESCRIPTION
[0167] In the following description, the same reference numerals are used for identical and identically acting parts.
I. Description of Figures
[0168] FIG. 1 is taken from U.S. Pat. No. 5,184,844 A (omitting the reference signs there) and shows an airbag, whereby large parts of the outer surface of a gas bag are in contact with other parts of the outer surface of the gas bag or at least very close to other parts of the outer surface of the bag (due to the schematic character of this figure, it ultimately remains open in the drawing whether the sections should actually touch each other, but this will presumably be the case in practice). The airbag shown here has pronounced folds.
[0169] FIG. 2 shows a cross-section of an impact shield 50 with a gas bag 71 of a non-inflated airbag. The gas bag is placed around a bottom surface 51B and an inner (rear) surface 51I of a central impact shield section 51. The gas bag has a gas inlet that allows the airbag to be filled with gas. The gas bag of this embodiment can have a volume of 2-7 litres, preferably 3-5 litres.
[0170] FIG. 3 shows a cross-section of an impact shield 50, wherein the central section 51 of the impact shield has an upper surface 51T, an inner (or rear) surface 51I, a bottom surface (or lower surface) 51B and an outer (or front) surface 51O.
[0171] FIG. 4 shows an impact shield 50 with a gas bag 71 of an airbag in the non-inflated state. The impact shield comprises a gas generator 72 that is configured to fill the gas bag 71 with gas in the event of an impact. The gas bag of this embodiment can have a volume of 3-15 litres, preferably 5-9 litres.
[0172] FIG. 5 shows a cross-section of an impact shield 50 with gas bag 71 of an airbag in the non-inflated state. The gas bag is placed around the bottom surface or lower surface 51B, an inner (rear) surface 51I and an upper surface 51T of the central (middle) impact shield section 51. The gas bag has a gas inlet that allows the airbag to be filled with gas.
[0173] FIG. 6 shows the cross-section of an impact shield 50 with a gas bag 71 of an airbag in the non-inflated state, wherein the impact shield has an at least substantially solid section 54 and a (e.g., foamed) cushioning means 55.
[0174] FIG. 7 shows a cross-section of an impact shield 50 with a gas bag 71 of an airbag in the non-inflated state, wherein the impact shield has fastening means 56 to (detachably) fasten the impact shield to a child seat. The fastening means 56 may comprise a belt system (which may be adapted with regard to its length) and belt tongues which are configured to engage with a buckle of the child seat.
[0175] FIG. 8 shows a child seat 10 that has a main body 20, a base 90, an impact shield 50, and an airbag 70 (not shown in detail). The main body comprises a seat section 21 (having a centre section 21M, a left side 21L and a right side 21R), a backrest 22, side wings 23, a headrest 24, a first fastening means 27, a side impact protection 29, and a third fastening means 31 (not shown). The impact shield extends substantially in a transverse direction T and has a centre (central) section 51, a left section 52, a right section 53, sixth fastening means 56 and a cover 57. The base has a fifth fastening means 91, a fourth fastening means 93 (not shown) and a support foot 92. A gap 121 is formed between the central section 51 (in particular its bottom surface 51B, not visible in the figure) and the centre section 51M of the seat section 21.
[0176] FIG. 9 shows the child seat 10 of FIG. 8 in a view from above, wherein a second gap 122 is recognisable between the central section 51 (in particular its inner or rear surface 51I, not visible in the figure) and the backrest. The airbag may be implemented according to one of the embodiments which are shown in FIGS. 2-7.
[0177] FIG. 10 shows a child seat 10 that has a main body 20, an impact shield 50, and an airbag 70 (not shown in detail). The main body 20 comprises a seat section 21 (with a centre section 21M, a left side 21L and a right side 21R), a backrest 22, side wings (or side bolsters) 23, a headrest 24, a first fastening means 27, a side impact protection 29, and a second fastening means 28. The impact shield extends at least substantially in a transverse direction T and has a central section 51, left and right sections 52, 53, and a cover 57. A first gap 121 is formed between the central section 51 (in particular its bottom surface 51B, not visible in the figure) and a centre section 21 of the seat section.
[0178] FIG. 11 shows a child seat 10 according to FIG. 10 in a view from below, wherein an airbag 70 is provided with a gas bag 71 (in a front section of the bottom surface 21B of the seat section 21), a gas generator 72, a sensor 74 and a connection 75. The sensor 54 is part of a control system (or controller) 73, which is not shown in detail. An additional airbag may be provided in the impact shield according to one of the embodiments shown in FIGS. 2-7, or any other embodiment according to the invention. The gas bag of this embodiment may have a volume of less than 10 litres.
[0179] FIG. 12 shows a child seat 10 (partially in cross-section) that has a main body 20, a base 90, an impact shield 50 and an airbag 70. The main body comprises a seat section 21, a backrest 22, a headrest 24 and a first fastening means 27. The impact shield 50 extends (at least substantially) in a transverse direction T and comprises a sixth fastening means 56. The airbag 70 comprises a gas bag 71 placed around a central section 51 of the impact shield (such that a bottom surface 51B, an inner surface 51I and a top surface 50T are at least partially, possibly completely, covered by the gas bag 71 which abuts at least substantially flat against these surfaces), a gas generator 72 which is preferably arranged in a cavity of the impact shield and is connected to a controller 73 by a connection 75.
[0180] A first gap 121 extends between bottom surface 51B of the central section 51 of the impact shield and the seat section 21, wherein the gas generator 72 is arranged close to a front end of the first gap 121 (i.e. away from the abdomen of the child), for example at a front end of the bottom surface 50B and/or at a front end of the outer (front) surface 51O. A second gap 122 extends between inner (rear) surface 51 of the centre section 51 of the impact shield and the backrest 22. The first gap 121 and the second gap 122 are configured to receive the legs and the abdomen of the child and the child's chest, respectively. A first fastening means 27 and a sixth fastening means 56 are configured to cooperate such that the impact shield 50 is (fixedly) attached to the main body 20 and a child accommodated in the child seat is restrained. The base 90 comprises a support foot 92, a fifth fastening means 91 (in particular Isofix anchor) and a controller 73, wherein the controller 73 comprises a sensor 74 that is arranged in or near a fifth fastening means 91. An airbag 70 may be implemented according to FIG. 7 or, alternatively, according to any embodiment that is shown in FIGS. 2-6 or according to yet another embodiment of the invention.
[0181] FIG. 13 shows the child seat 10 of FIG. 12, wherein (now) the airbag 70 is in its inflated state. The gas bag 71 is filled with gas, so that first gap 121 and second gap 122 are (now) narrower in order to restrain the child from a (initial) movement forward relative to the child seat. A bulge in the surface of the upper surface 51 T is configured to receive the child's head. The gas bag of this embodiment may have a volume of at least 3 litres, preferably at least 5 litres, and/or a volume of less than 15 litres, preferably less than 10 litres.
[0182] FIG. 14 shows a schematic representation of a (rectangular) gas bag 71 and a gas generator 72. The gas generator 72 has a gas outlet 80, which is arranged inside the gas bag 71 close to its edge. The gas bag 71 comprises a guiding device 77 with (linear and/or linearly arranged) guiding structures which are arranged straight and parallel to each other. A connection 75 is provided on the gas generator 72 to connect the gas generator 72 to a controller (not shown).
[0183] FIG. 15 shows a schematic representation of a (trapezoidal) gas bag and a gas generator. The gas bag has a proximal section 78, close to the gas outlet of the gas generator, and a distal section 79, further away from the gas outlet, and has a guiding device with (preferably line-forming) guiding structures, which is straight and (slightly) divergent. A connection is provided on the gas generator to connect the gas generator to a controller (not shown).
[0184] FIG. 16 shows a schematic representation of a gas bag and a gas generator. The gas generator 70 has a gas outlet 80, which is connected to a gas inlet 81 of the gas bag via a gas connection 76. The gas bag has a guiding device with guiding structures (preferably forming lines) which are curved and diverge (slightly). A connection is provided on the gas generator to connect the gas generator to a controller (not shown).
[0185] FIG. 17 shows a schematic representation of a gas bag 71 and a gas generator. The gas generator has a gas outlet which is arranged inside the gas bag (near its centre). The gas bag has two guiding devices 77, each with a group of guiding structures (preferably forming lines) which are curved and parallel to the guiding devices 77 of the respective same group. A connection is provided on the gas generator to connect the gas generator to a controller (not shown).
[0186] FIG. 18 shows a schematic representation of an airbag 70 comprising a gas bag 71, a gas generator and a controller 73 with a sensor 74. The gas outlet of the gas generator is connected to a gas inlet of the airbag 71 via a gas connection. A connection is provided on the gas generator to connect the gas generator to the controller 73.
[0187] FIG. 19 shows a schematic representation of a (rectangular) gas bag and a gas generator 72. The gas generator has a gas outlet 80, which is arranged inside the gas bag (near its centre). The gas bag comprises two guiding devices 77, each having a group of guiding structures which are straight and parallel to each other. A connection 75 is provided on the gas generator to connect the gas generator to a controller (not shown).
[0188] FIG. 20 shows a schematic representation of a gas bag and a gas generator. The gas bag has a proximal section 78 close to a gas outlet of the gas generator, and a distal section 79 further away from the gas outlet. The gas bag has two guiding devices, each with a group of (preferably line-forming) guiding structures, which are straight and (slightly) diverging. A connection is provided on the gas generator to connect the gas generator to a controller (not shown).
[0189] FIG. 21 shows a schematic representation of a gas bag 71 and a gas generator 72. The gas bag 71 has short edges that extend in an X-X direction and long edges perpendicular to the short edges that extend in a Y-Y direction. The gas bag 41 further has a guiding device 77 with guiding structures which are straight and parallel to each other and which are covered by sealings 82. Furthermore, the gas bag 71 has coupling means 83 and 83 which are configured to couple the gas bag to a support element. The coupling means 83 are each provided on an associated protrusion of the gas bag 71 which protrusion projects from a section of the gas bag that is configured to be filled with gas. These protrusions may either be selected integral with one of the walls of the gas bag, or they may be attached to the (respective wall) as separate elements.
[0190] The coupling means 83 may be arranged in a contact surface 71c and a support surface 71s (as shown in the figure) or only in a support surface 71s of the airbag 71. The coupling means 83 may be covered by sealings, and be aligned with the guiding structures of the guiding device 77 to assist the guiding of the gas flow in a proximal-distal direction. A connection 75 is provided on the gas generator 72 to connect the gas generator 72 to the controller (not shown).
[0191] FIG. 22 shows a schematic representation of a cross-section of the gas bag 71 as shown in FIG. 21 along a dashed line A. While in FIG. 21 it is not recognisable whether the gas bag 71 is inflated or non-inflated, it is shown here in its inflated state. It can be seen that the gas bag is formed at least in the area of the section of the cross-section shown (at least essentially) flatly (this can also generally apply to all cross-sections not shown). The height of the gas bag extends in a direction Z-Z (which is perpendicular to the direction X-X and the direction Y-Y and is indicated by the distance of the two arrow heads) and is (considerably) smaller than a width that extends in direction X-X (here: less than 10%). It can further be seen that the guiding device 77 or its guiding structures contribute to limiting the height. The (e.g., flat) surface of the support element is not shown.
[0192] FIG. 23 shows a schematic representation of a cross-section of the gas bag 71 analogous to FIG. 22 along the dashed line A in an alternative embodiment to that shown in FIG. 22. Here too, the gas bag 71 is shown in its inflated state. The difference to FIG. 22 is that the surface of the support element is not flat, but has webs 111 and grooves 112 which are aligned with the structures of the guiding device 77 or with channels 84. Each channel 84 faces a groove 112, while each guiding structure of the guiding device faces a web 111. In this way, a sufficient gas flow can be ensured even when a certain pressure is exerted on the contact surface 71c of the gas bag 71.
[0193] FIG. 24 shows an oblique view of an impact shield according to the invention. The impact shield has a first (solid) section 58 as well as a second (softer) section 59, as well as an inner mantle 60. A gas bag (not visible) is accommodated within the inner mantle 60. The inner mantle 60 comprises tear seams 61 which are designed such that they tear open at a predetermined pressure so that the gas bag can inflate. In the first section 58A a belt guide 62 is arranged, through which a vehicle belt or a child seat belt can be passed in order to hold the impact shield (and thus the child).
[0194] An outer mantle or cover can be arranged around the inner mantle 60 (not shown in the figure).
[0195] The first section 58 is preferably made of a non-foamed plastic. The second section 59 is preferably made of a foamed plastic.
[0196] FIG. 26 shows a further embodiment of an impact shield according to the invention (in particular as component of a child seat).
[0197] The impact shield has a central impact shield section 51 as well as a gas bag 71. This can, in principle, be constructed as shown in FIG. 21 (although this is not mandatory), in particular with regard to the coupling means 83, 83 (with the specifics explained in the following).
[0198] In particular, the impact shield according to FIGS. 26-28 can have coupling means 83, which can, for example, be inserted at the place of the lower, with reference to the drawing, coupling means shown in FIG. 21. Specifically (in relation to the impact shield), these coupling means 83 (see FIG. 26) can be coupling means which are arranged at the top of the impact shield in a front third of the impact shield, in particular at a front, upper end of the impact shield (or in the vicinity thereof, for example at most 2 cm or at most 4 cm or at most 5 cm away from such a front, upper end).
[0199] These (release) coupling means 83 can be designed as shown in FIG. 27, i.e. in particular have a (dashed-drawn) predetermined tearing point and/or predetermined breaking point, which tears or breaks when a predetermined force threshold is exceeded. This predetermined tear point and/or predetermined breaking point can, for example, have one or several (e.g. at least 2 or at least 3 or at least 5, in particular arranged in a line) perforation(s).
[0200] Alternatively or additionally, a taper (as in FIG. 28) can also be provided, which also defines a predetermined tear point and/or predetermined break point. In this respect, a combination of the solution shown in FIGS. 27 and 28 is also possible. Specifically (which is not mandatory), according to the embodiment shown in FIG. 28, a pair of mutually opposite tapers is provided (where the dashed line is drawn in FIG. 27).
[0201] The force threshold is preferably predetermined such that it is (inevitably) exceeded when the airbag is triggered. However, this is not mandatory. It is also conceivable, for example, to set the force threshold higher and to take into account in this respect that an additional force may result from, for example, the fact that the child's body influences the distribution of the forces resulting from the inflation of the gas bag.
[0202] At this point, it should be noted that all the parts described above, taken individually and in any combination, in particular the details shown in the drawings, are claimed as further developments of the invention. Modifications thereof are possible.
[0203] It should further be pointed out at this point that all the parts or features described above are each on their owneven without features additionally described in the respective context, even if these have not been explicitly identified individually as optional features in the respective context, e.g. by using: in particular, preferably, for example, e.g., optionally/possibly/if necessary, round brackets etc.,or in combination or any sub-combination are to be regarded as independent embodiments or further developments of the invention, such as they are defined in particular in the introduction to the description and the claims. Deviations from this are possible. Specifically, it should be noted that the words in particular or round brackets are intended to explicitly characterise non-mandatory features in the respective context.
[0204] Finally, it is pointed out that the present application for an industrial property right (in the event of registration or grant: the present industrial property right) aims to have a protection as broad as possible. It is requested that this be borne in mind when reading, in particular in so far as (intermediate) generalisations of explicitly disclosed features or combinations of features are concerned.
REFERENCE SIGNS
[0205] T transverse direction [0206] 10 child seat [0207] 20 main body [0208] 21 seat section [0209] 21R right side (of the seat section) [0210] 21L left side (of the seat section) [0211] 21B bottom side/underside (of the seat section) [0212] 21M centre section (of the seat section) [0213] 22 backrest [0214] 23 side wings/side bolster [0215] 24 headrest [0216] 25 support foot [0217] 26 top tether [0218] 27 first fastening means [0219] 28 second fastening means [0220] 29 side impact protection [0221] 31 third fastening means [0222] 50 impact shield [0223] 51 central impact shield section [0224] 51B bottom surface/lower surface (of the centre section of the impact shield) [0225] 51I inner surface/rear surface (of the centre impact shield section) [0226] 51T upper surface (of the central section of the impact shield) [0227] 51O outer surface/upper surface (of the central section of the impact shield) [0228] 52 left impact shield section [0229] 53 right impact shield section [0230] 54 fixed section (of the impact shield) [0231] 55 cushioning means (of the impact shield) [0232] 56 sixth fastening means [0233] 57 cover [0234] 58 first section [0235] 59 second section [0236] 60 inner mantle [0237] 61 tear seam [0238] 62 belt guide [0239] 70 airbag [0240] 71 gas bag [0241] 71c contact surface [0242] 71s support surface [0243] 72 gas generator [0244] 73 controller [0245] 74 sensor [0246] 75 connection [0247] 76 gas connection [0248] 77 guiding device [0249] 78 proximal section [0250] 79 distal section [0251] 80 gas outlet [0252] 81 gas inlet [0253] 82 sealing [0254] 83, 83 coupling means [0255] 84 channel [0256] 90 base [0257] 90B bottom side/lower side (of the base) [0258] 91 fifth fastening means [0259] 92 support foot [0260] 93 fourth fastening means [0261] 121 first gap [0262] 122 second gap [0263] 110 support element [0264] 111 web [0265] 112 groove
