EP0944502A1 - Vorrichtung zum falten eines gassacks - Google Patents
Vorrichtung zum falten eines gassacksInfo
- Publication number
- EP0944502A1 EP0944502A1 EP98954320A EP98954320A EP0944502A1 EP 0944502 A1 EP0944502 A1 EP 0944502A1 EP 98954320 A EP98954320 A EP 98954320A EP 98954320 A EP98954320 A EP 98954320A EP 0944502 A1 EP0944502 A1 EP 0944502A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- gas bag
- webs
- folded
- folding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/237—Inflatable members characterised by the way they are folded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/237—Inflatable members characterised by the way they are folded
- B60R2021/2375—Folding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/232—Curtain-type airbags deploying mainly in a vertical direction from their top edge
Definitions
- the invention relates to a device for folding an airbag.
- Such a device usually contains a large number of
- Folding swords that are moved onto a gas bag that is spread out flat and provide folding edges along which the gas bag is to be folded, or that are moved into an inflated gas bag in order to achieve the folding of the wall of the gas bag.
- a disadvantage of these folding methods is the comparatively high outlay, which is caused in particular by the necessary reciprocating movement of the folding swords. This type of movement of the folding swords prevents such a folding device from operating continuously.
- the invention provides a device for folding an airbag that works in a quasi-continuous manner and in particular without a reciprocating movement of moving components.
- the device created by the invention contains two rollers, which are provided on their circumferential surface with a plurality of radial webs and are rotatably arranged so that their axes are at least approximately parallel to one another and the webs interlock. If these rollers are driven in a suitable manner, namely in mutually opposite directions with at least approximately the same rotational speed, a gas bag to be folded, after it has been gripped by the co-operating rollers, is automatically pulled through the meandering gap formed between the two rollers , wherein the wall of the gas bag is placed in a plurality of folds lying side by side. So only rotating elements are used to fold the gas bag, which is a major disadvantage floating components means.
- FIG. 1 is a schematic perspective view of a device according to the invention.
- FIG. 2 schematically shows a section along the line A-A of Figure 1;
- FIG. 3 is a perspective view of a folding machine with the device according to the invention.
- FIG. 4 shows a section of the folding machine from FIG. 3.
- This device essentially consists of two rollers 10, 20 which are provided on their circumferential surface with a plurality of webs 14 and 24 which extend radially, that is to say in a direction perpendicular to the longitudinal axis of the corresponding roller. Adjacent bars
- the rollers 10, 20 can each be either formed in one piece or formed by a plurality of adjacent individual disks, each of which forms a web 14, 24.
- the rollers 10, 20 are arranged rotatably about their longitudinal axes XI and X2, respectively, the axes XI and X2 extending parallel to one another.
- the distance between the axes XI and X2 is dimensioned such that the webs 14 of the roller 10 engage in the spaces 22 between the webs 24 of the roller 20, and vice versa.
- Overlap between the webs 14 of the roller 10 and the webs 24 of the roller 20 is denoted by x.
- the webs 14 and 24 of the rollers 10, 20 are made narrower than the corresponding gaps 22 and 12 of the rollers 20, 10, in which the webs each engage. In this way, there is a distance y between the mutually opposite side surfaces of the webs engaging with one another. This distance y is such that it corresponds approximately to twice the wall thickness of an airbag to be folded.
- the rollers 10, 20 can be rotated in the opposite direction to one another by means of schematically shown drive shafts 16 and 26, respectively, which are connected to drive motors 50 (see FIGS. 3 and 4) (see arrows 18 and 28 in FIG. 1).
- the speed of rotation of the rollers is identical.
- the device described is used in a folding machine, which is shown in FIGS. 3 and 4, and enables a gas bag 40 which is shown schematically in a particularly simple manner
- This type of folding is particularly suitable for side impact gas bags, which are usually only folded in one direction. If there is a schematically illustrated gas lance 42 in the interior of the gas bag, with which the compressed gas deploying the gas bag 40 is evenly distributed inside it, one of the spaces 12, 22 on one of the rollers 10, 20 can be made wider than the other spaces, so that the gas lance 42 is received in this intermediate space and is pulled through the gap between the rollers 10, 20 together with the entire gas bag.
- the fold obtained is, as has already been indicated, particularly advantageous in the case of side impact gas bags, since these are, if they are arranged, for example, along a roof rail, need to unfold in only one direction from their folded state.
- the direction of deployment coincides with the direction of folding specified by the device according to the invention, so that the deployment of the gas bag is not impeded by the folding carried out.
- a station adjoins the rollers 10, 20, by means of which the folded gas bag is guided and in particular pushed further together.
- This station has two endless rubber bands 56, each of which is guided by two deflection rollers 58. The distance of the
- Rubber bands decrease from the end at which the folded gas bag is picked up to the end at which it is released again. In this way, the wall of the gas bag folded by the rollers 10, 20 in the fan-fold style is pushed further together, so that the individual folds of the wall package lie tightly against one another.
- the film bag 60 pulls in two film strips 60 which are arranged on the side of the gas bag.
- the film bands are cut from rolls 62 to form a closed band and welded, so that the gas bag is folded to save space and cannot unfold again during further handling.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29718501U | 1997-10-17 | ||
DE29718501U DE29718501U1 (de) | 1997-10-17 | 1997-10-17 | Vorrichtung zum Falten eines Gassacks |
PCT/EP1998/006270 WO1999020492A1 (de) | 1997-10-17 | 1998-10-02 | Vorrichtung zum falten eines gassacks |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0944502A1 true EP0944502A1 (de) | 1999-09-29 |
Family
ID=8047399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98954320A Ceased EP0944502A1 (de) | 1997-10-17 | 1998-10-02 | Vorrichtung zum falten eines gassacks |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0944502A1 (ja) |
JP (1) | JP2001506208A (ja) |
AU (1) | AU1149199A (ja) |
DE (1) | DE29718501U1 (ja) |
HU (1) | HUP0001714A3 (ja) |
PL (1) | PL333914A1 (ja) |
WO (1) | WO1999020492A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19751685A1 (de) * | 1997-11-21 | 1999-05-27 | Trw Repa Gmbh | Verfahren zum Falten eines Gassacks für ein Fahrzeuginsassen-Rückhaltesystem sowie Vorrichtung zum Falten eines solchen Gassacks |
DE19942703A1 (de) * | 1999-09-07 | 2001-03-08 | Trw Repa Gmbh | Verfahren und Vorrichtung zum Falten eines Gassacks für ein Fahrzeuginsassen-Rückhaltesystem |
DE10039554B4 (de) | 2000-08-07 | 2005-07-21 | Takata-Petri Ag | Verfahren zur Faltung eines Gassacks und Vorrichtung zur Durchfürung des Verfahrens |
WO2003013913A1 (es) * | 2001-08-10 | 2003-02-20 | Dalphi Metal España, S.A. | Procedimiento de plegado y enfundado de un saco inflable de un airbag de cortina |
US7163232B2 (en) | 2001-11-26 | 2007-01-16 | Nihon Plast Co., Ltd. | Curtain airbag and its folding method and system |
DE10162233B4 (de) * | 2001-12-18 | 2006-04-20 | Key Safety Systems, Inc., Sterling Heights | Airbag Faltungsverfahren und -vorrichtung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3348295B2 (ja) * | 1992-07-31 | 2002-11-20 | 豊田合成株式会社 | エアバッグの折畳み方法および装置 |
JP2870318B2 (ja) * | 1992-09-08 | 1999-03-17 | 豊田合成株式会社 | エアバッグの折り畳み方法 |
US5375393A (en) * | 1993-04-07 | 1994-12-27 | Automated Solutions, Inc. | Bag folding system |
US5669204A (en) * | 1995-09-18 | 1997-09-23 | Automated Solutions, Inc. | Bag folding system |
-
1997
- 1997-10-17 DE DE29718501U patent/DE29718501U1/de not_active Expired - Lifetime
-
1998
- 1998-10-02 PL PL98333914A patent/PL333914A1/xx unknown
- 1998-10-02 AU AU11491/99A patent/AU1149199A/en not_active Abandoned
- 1998-10-02 JP JP52306599A patent/JP2001506208A/ja active Pending
- 1998-10-02 EP EP98954320A patent/EP0944502A1/de not_active Ceased
- 1998-10-02 HU HU0001714A patent/HUP0001714A3/hu unknown
- 1998-10-02 WO PCT/EP1998/006270 patent/WO1999020492A1/de not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9920492A1 * |
Also Published As
Publication number | Publication date |
---|---|
HUP0001714A2 (hu) | 2000-09-28 |
HUP0001714A3 (en) | 2001-05-28 |
AU1149199A (en) | 1999-05-10 |
JP2001506208A (ja) | 2001-05-15 |
DE29718501U1 (de) | 1998-02-19 |
PL333914A1 (en) | 2000-01-31 |
WO1999020492A1 (de) | 1999-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19990617 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 20011017 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 20020420 |