DE1802302B - Device for protecting a vehicle occupant, in particular a motor vehicle occupant, in the event of an accident or a collision - Google Patents

Description

Movement of the vehicle occupant relative to the steering wheel rim (12) forms.

Steering column brakes, thereby marked 15

net that the housing (15) from the connection

is formed between the steering column (13) and the steering wheel rim (12) and that the housing (15)

nor the pressure medium source (40) and one with The invention relates to a device for protection

the diffuser (41) connected to the bag (42) is held by a vehicle occupant, in particular a force, the passages known per se for driving passengers, in the event of an accident or collision (slots 53), through which the pressure medium pushes, together with one provided on the steering wheel Inflation from the pressurized medium source (40) in folded, inflatable from a pressurized medium source the bag (42) flows. Bag and a device for opening the pressure

2. Apparatus according to claim 1, characterized in that the medium source for inflating the bag, wherein the indicates that the housing (15) in itself housing releases the bag when inflated and the As is known, the bag (42) under the one-bag in the inflated state has a relative flow of the internal pressure of the bag. movement of the vehicle occupant in relation to the steering

3. Device according to claim 2, thereby braking the column.

indicates that the housing (15) is a 30 A device of this type is known (Italian guard Area (24, 88), which is shown in patent specification 609 624), in which the collapse of the bag (42) breaks. folded bag in a center of the steering

4. Apparatus according to claim 3, characterized in that the chamber provided is arranged straight. This characterized in that the weakened area has a center or the hub may not be very large elongated predetermined breaking point (88), which are made of the 35, because this firstly looks unattractive and housing (15) divides into movable sections (24). second, the steering wheel spokes must be retained,

5. Device according to one of the preceding so that the space in this circular section in cross-section claims, characterized in that the dif- migen chamber is relatively narrowly delimited and fusor (41) can only accommodate a relatively small bag between each other. Parts of the steering wheel rim (12) is arranged, 4 ° In addition, the pressure medium source is in this in a manner known per se, essentially cylindrical design at a considerable distance from the Has drical shape and is arranged over a size chamber and thus the bag. This beren Part of the distance between these steering wheel not only results in an additional effort in the fringe parts extends. look at longer pipelines but has plans

6. Device according to one of the preceding 45 especially the disadvantage that the inflation of the Beu claims, characterized in that the means with a considerable delay in the event of a collision Pressure medium source from an elongated pressure takes place, quite apart from the susceptibility of a Medium container (40) consists, the longitudinal axis of which is longer pipeline together with connections opposite transverse to the longitudinal axis of the steering column (13) angeord- damage. In addition, the Raumnet is, and that the diffuser (41) parallel to 50 requires the pressure medium source and pipeline at Longitudinal axis of the pressure medium container (40) part of the known device is considerable; furthermore they lie wise around the pressure medium tank (40) around freely on the underside of the steering column and hinder extends and a plurality of slots (53) not only the driver, but also act visually has, through which the pressure medium from the unsightly.

Pressure medium container emerges to the bag (42) 55 Furthermore, it is already known (USA.-Patent to inflate. 3 197 234), the inflatable bag of a device

7. Device according to one of the preceding device for protecting a vehicle occupant with a Claims, characterized in that to connect the diffuser having passages through Pressure medium container (40) and the diffuser (41) which the pressure medium when inflating from the pressure surfaces (40 a, 41 '), the medium source flows together 60 in the bag.

a tapering in the direction of flow of the pressure medium The object on which the invention is based Form chamber part (115). is in it, a device of the aforementioned

8. To create a device according to one of the previous type, which is designed so that it is at the claims, characterized in that the compact and space-saving construction makes the sub-bags (42) a relatively large bag available in the collapsed state narrow in width and proportionally, which also spreads quickly and evenly can blow wide in the longitudinal direction of the housing (15).

and that the housing (15) is two from each other. This object is achieved according to the invention

loosens, so that the cover of the pre-binding between the side and end walls 20,21 and 18,19 respectively Steering column and the steering wheel rim is formed and stretches and the actual connection (spokes) that the Gehliuse still forms the pressure fluid source and between the steering column 13 and the steering wheel rim 12, a diffuser connected to the dome bag. This base 22 has an opening 23 through which has passages in a manner known per se, which the steering column 13 extends. The through the pressure medium when inflating the hiiusis is provided forner with a cover 24, Druckmitielquelle flows into the bag, which closes the top of the housing and

In the device according to the invention, its interior is therefore covered. The cover part 24 can dcnach all parts of the device be designed very crowded coral and opposite edge and compactly enclosed by a housing, the io wUlsle 25,26, which over the opposite at the same time the connection between the steering column and the edges of the rope walls 20, 21 snap in and Steering wheel rim, i.e. the spokes or the spoke that form the end,

This arrangement can also easily be given a decorative appearance. A sleeve 25 'surrounds the end of the steering column 13. The pressure in the housing 15, the sleeve 25 'is provided with a collar 26 a medium source is immediately adjacent to the bag, 15, which is on a shoulder 27 of a hub 28 so that the flow paths are as short as ever. The hub 28 is primarily possible in the housing 15 and a particularly rapid inflation is carried by the bottom 22 thereof. A nut or special bag in the event of a collision, when the permanent fastening element 30 is released, is screwed onto the threaded pressure medium from the pressure medium source, which ensures the steering column 13 and performs. At the same time, this inflation takes place, in particular, a clamping connection of the sleeve 25 ', the hub 28 and evenly after between the pressure medium and the steering column 13. The clamping connection is the source and a diffuser is interposed, such that when the steering wheel 12' is turned the steering column 13 that directs the pressure medium on the way into the bag is rotated,
The hub 28 has a base part 34, against

and uniform function of the device and the size of which the fastening element 30 is supported, soßere Safety for the vehicle occupant or driver such as two approaches 35, 36, which from the base part 34 to taken care of, especially since a bag is directed from above in the housing, as can best be seen in FIG. 4 Can accommodate size. is borrowed. The approaches 35, 36 have an annular structure

Embodiments of the invention are rear bearing surfaces 35 a, 36 α . The ring-shaped parts are explained in more detail below with reference to the drawing. There 30 bearing surfaces 35 ″, 36 a form a substantially U-shaped support for the housing within the housing

Fig. 1 is a side view of the driver's seat and the purpose described in more detail below.
Steering arrangement of a vehicle equipped with an inventive device from the foregoing, wheel 12 α is carried by the housing 15 and that the steering-designed device

F i g. 2 shows the partial view, seen in the direction of arrow 2-2 35, the housing 15 transmits the rotation of the steering wheel 12 α to the steering column 13 in FIG. 1 on an enlarged scale. It can also be seen that

F i g. 3 shows the section along the line 3-3 in Fi g. 2, the interior of the housing 15 and its contents

FIG. 4 covers the section along the line 4-4 in FIG.
on an enlarged scale, the steering arrangement 11 comprises a safety device

F i g. 5 shows the section according to FIG. 4, but at 40 direction 39, which within the housing 15 pre-inflated Bag, is seen. The safety device 39 has the

F i g. 6 shows the view according to FIG. 2 in the case of another, the driver of the vehicle before a collision Ren embodiment to protect the steering wheel during a collision.

F i g. 7 shows the section along line 7-7 in FIG. 6 in The safety device 39 consists essentially on an enlarged scale Scale, 45 borrowed from a folded, inflatable

F i g. 8 shows the section along line 8-8 in FIG. 6, bag 42, which in the inflated position a relative FIG. 9 shows an enlarged section from FIG. 6. Movement of the vehicle occupant or driver in opposite directions.

In the embodiment of the invention according to brakes on the steering column 13, a Druckmiltel-Fig. 1, 10 denotes a vehicle which is seated quelle40 and a device for opening the steering arrangement, denoted as a whole by 11, of pressure medium source for the purpose of inflating the bag 42. The steering assembly 11 has a steering wheel 12 π The bag 42 is in its folded up

with a steering wheel rim 12 and a steering column 13 retirement shown in Fig. 4; its inflated Stelauf, which rotates with the steering wheel 12 α. ment is based on fig. 5 emerges. The pressure medium flows

The steering wheel rim 12 of the steering wheel 12 α is in the bag 42, so it expands and is connected to the steering column 13. This connection 55 takes the dash-dotted line between the steering column 13 and the steering wheel rim 12, position A in FIG.
designed as a housing 15, which has end walls 18, 19. Furthermore, a diffuser 41 with the bag 42 is like this

with edge parts 16,17. The edge parts 16.17 connected that this at rest, as best are in a suitable manner with the steering wheel rim 12 60 from FIG. 4 can be seen, folded on a connected so that they rotate with this. The outer part 50 of the diffuser 41 rests. The Diffu-Endwändel8,19 taper downward and inward sor 41 is between opposing Teizur Steering column 13 out, as in F i g. 3 shown. The ends of the steering wheel rim 12 are arranged (FIG. 3) and wandele, 19 are connected by side walls20,21 extends over a larger part of the distance, as in Fig. 2 shown. The side walls 20, 21 65 of the between these. The diffuser 41 is with a are essentially trapezoidal in shape- number of passages or slots 53 are provided, mig, as can best be seen from Fig. 2 results. a distribution or even flow of the

Housing 15 has a bottom 22, which is between pressure medium from pressure medium source 40, expedient-

moderately a pressure medium container, in the bag 42 bag 42 electrically ignited. This happens when

to achieve so that the vehicle collides relatively evenly. A

and yet rapid inflation is achieved. Sensing device can be used, which on a KoI-

The diffuser 41 is essentially cylindrical and responds to the lision condition and the closing of a

and has a cylindrical, lower part 41 α , 5 circuit for igniting the explosive 90

which acts on the surfaces 35 a, 36 α of the approaches 35, 36 of the. A suitable slip ring assembly 95

Base part 34 or the hub 28 rests, so that the diff (Fig. 3) can for the current flow to the explosive 90

fusor41 is carried by these. The diffuser 41 can be provided. The slip ring assembly 95

is in the in F i g. 4 position shown within has a rotatable contact 96 which is controlled by the steering

of the housing 15 fixed by screws 60, 61, the io wheel is carried and moves with this, as well

through tabs 62, 63 of the diffuser into a second contact, which is connected to contact 96 in

Approaches 35,36 are screwed. The tabs 62,63 are kept touching even when the contacts

are formed in that openings 64,65 produce a rotating movement with respect to one another.

lead out the opposite parts of the diffuser.

be punched. In this way, the diffuser 15. Another embodiment is shown in FIG. 6 to 9 41 shown inside safely in its position on the hub part 28. In the case of the half of the housing 15 shown in FIGS. 6 to 9, so that it is in order, many parts are provided which rotate with the preceding rotation of the steering wheel 12 α . The going in connection with F i g. 1 to 5 described pressure medium container 40 has a cylindrical parts are similar. The similar parts wear in part 70, which at both ends by half-20 F i g. 6 to 9 have the same reference numerals with which they terminate spherical end parts 71, 72. This in Fi g. 1 to 5 are provided.

End parts 71, 72 are in areas 73 and 74. In the embodiment shown in FIGS.

the end walls 18,19 mounted. This storage example is a steering wheel 12 α, which has a steering wheel

happens with the interposition of damping cushions 75 wreath 12, with the steering column also through

and 76. 25 connected a connecting part which has the shape of a

The elongated pressure medium container 40 has its housing 15. Arranged within the housing 15

The longitudinal axis transverse to the longitudinal axis of the steering column 13 and supported by it is in turn located

orderly. The diffuser 41 is at its lower part a pressure medium container 40 and a diffuser 41, the

tightly fitting to the cylindrical part 70 of which is connected to the container 40 and this part-

Pressure medium container 40 attached, so extends 30 surrounds. With the container 40 and the diffuser

parallel to this and partially around the pressure medium container 41, the bag 42 is connected in such a way that it can pass through the

holder 40 around. The upper part of the diffuser 41 inflates the pressure medium flow out of the container 40.

is found, as shown in Fig. 3, can be sen at a distance. The pressure medium flow from the

from the upper wall part of the pressure medium container 40 takes place through slots 53 in the diffuser 41

ters 40 and forms with this upper wall part a 35 and in the bag 42 to inflate it.

Chamber 80. The pressure medium container 40 is equipped with a filling

When the pressure medium container 40 is opened, the circuit 100 flows at one end, through which pressure medium flows out of this into the chamber 80 and through which it can be filled with a pressure medium. At the slots or passages 53 in the diffuser 41 at its other end, the container 40 has a folded-up part 101 (FIG. 9) which is neck-like in width and has a narrow protruding surface part 102 which is narrow in the longitudinal direction of the housing 15, which extends from the hemispherical relatively wide bag 42, which thereby extends into the in moderate end portion of the container 40 to the outside. F i g. 1 position shown is inflated. A strip 103 of explosives surrounds the neck stretch of the bag 42, the cover part 24 is loosened, migen part 101 of the container 40, in order to prevent the expansion of the bladder 42 from forming an opening in the container 40 impaired. The cover part 24 has effect in the middle. The explosive strip 103 extends as a predetermined breaking point on an elongated weakened area around the surface 102 of the protruding part 101 of the area 88, which, when the bag 42 is inflated, the holder 40 and is electrically operated by means of the inflowing pressure medium, e.g. B. gas, detonator 104 detonated. The current is broken through the, whereby the resulting sections 50 detonator 104 through lead wires or Leitei of the cover part 24 in the in Fig. Position 105 shown in Figure 5 directed that moves through an opening 106 in Diffu or be pivoted. sor 41 are performed.

The pressure medium container 40 can be opened as desired. When pressure medium emerges from the container 4C

be, for example by means of explosives, the total in it flows into a chamber 110. which through the

F i g. 4 is designated by 90 . The explosives can be in 55 outer surface of the container 40 and the inner surface

Strip shape can be used, which strip on the diffuser 41 is limited. The chamber 110 to

attached to a region of the pressure medium container 40 summarizes a chamber part 111 adjacent to the neck

is. who is weakened. so that upon actuation of the moderate part 101 of the container 40, in which there;

Explosives this area opened and pressurized medium out of the container 40 at the detonator

is moved when the pressure medium from the container 60 of the explosive strip 103 initially flows. The ii

ter40 flows out under pressure. Such a region is the pressure medium wire flowing into the chamber part 111

in Fig. 5 and denoted by 91. When the through the spherical inner surface 112 of the diffuser. di <

Part 91 in the in Fi g. 5 position shown moves the chamber part 111 partially limited, in the longitudinal direction

is, the pressure medium is diverted from the pressure medium reservoir of the container 40,

ter 40 through the diffuser 41 and into the bag 42, 65. Furthermore, the pressure medium container 40 have a

whereby this in the previously described outer surface 40 α and the diffuser 41 an inside

Way is inflated. area 41 'that merge with each other in Strö

The explosive 90 is used to inflate the direction of flow of the pressure medium tapering Kam

Form parts of the chamber 110 . The chamber part 115 tapers to such an extent that the pressure medium flowing along the chamber part 115 is greatly throttled. In the exemplary embodiment shown (FIG. 6), the tapering of the chamber part 115 is brought about by the fact that the pressure medium container 40 expands, while this is not the case with the diffuser 41. The tapering of the chamber part 115 can, however, also be brought about in other ways.

The pressure medium flows into the chamber part 115 and then through the slits 53 in the diffuser 41 into the bag 42. The tapering chamber part 115 results in essentially the same pressure medium throughput through all the slits 53.

approximately the same flow speed through the opening 55 α, which is furthest away from the explosive 103 , as through the opening 53 b, which is immediately adjacent. In addition, pressure medium flow through each of the slots is kept substantially the same during a time interval in order to ensure uniform inflation of the bag. Also in this embodiment includes a cover member 24 to the container 15 and is thereto by means of lugs 24 a, b secured 24, which extend through openings in the housing 15, as shown in F i g. 7 is shown. Furthermore, the diffuser 41 is again fastened in its position in the housing by protruding tab parts 120, 121 , which cooperate with protruding lugs 122 and 123 on the housing 15 .

For this purpose 2 sheets of drawings

209 528 /:

Claims (1)

1 2 patent claims arranged at a distance and in the longitudinal direction: Seiton walls (20, 21), two circular walls connecting the two rope walls (20, 21) with one another 1. Device for protecting a vehicle occupant- end walls (18,19) and an upper cover part (24) sen, in particular of a motor vehicle occupant, at 5, which is located between these four walls an accident or a collision, with extends and relative to this is movable to one on the steering wheel in a closed area the bag (42) the expansion during inflation housing provided, collapsed, to allow. a pressure medium source inflatable bag and 9. Apparatus according to claim 8, characterized geeiner Device for opening the pressure medium ίο characterized in that the housing (15) also has a source for the purpose of inflating the bag, the bottom (22) having, which extends between the side Housing releases the bag when inflated and and end walls (18,19, 20, 21) extends and the the bag in the inflated state a relative connection between the steering column (13) and the