US5599040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bag for air bag system and manufacturing method thereof
Assignee: Toyota Motor Corp
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Filing: 1995-06-01
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Granted: 1997-02-04
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Expires: 2015-06-01
Abstract
Abstract A method of manufacturing a bag for an air bag system has the steps of (a) securing together a first base cloth having a gas inlet and a second base cloth along a periphery thereof, (b) forming a main bag and at least one auxiliary bag so that the at least one auxiliary bag is located between the main bag and the periphery, and (c) turning the first base cloth and the second base cloth inside out via the gas inlet. A bag is provided by the method and has a main bag and at least one auxiliary bag as component parts.
Inventors
- 👤 Hiroyuki Takahashi
- 👤 Makoto Hamada
- 👤 Hiroyuki Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:43
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/23; B60R21/231; B60R21/2334; B60R21/2342
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
171 words
A method of manufacturing a bag for an air bag system, said method comprising the steps of: (a) securing together a first base cloth having a gas inlet and a second base cloth along a periphery thereof after stacking said first base cloth and said second base cloth so that said periphery has a first rupture strength; (b) forming a main bag and at least one auxiliary bag immediately after securing together said first base cloth and said second base close along the periphery thereof so that said at least one auxiliary bag is located between said main bag and said periphery and a division between said main bag and said auxiliary bag has a second rupture strength which is less than said first rupture strength; and (c) turning the first base cloth and the second base cloth inside out via the gas inlet after forming said main bag and at least one auxiliary bag so that said at least one auxiliary bag can be located interiorly of said main bag.
Claim 2
Independent Claim
171 words
A method of manufacturing a bag for an air bag system, said method comprising the steps of: (a) securing together a first base cloth having a gas inlet and a second base cloth along a periphery thereof after stacking said first base cloth and said second base cloth so that said periphery has a first rupture strength; (b) forming a main bag and at least one auxiliary bag immediately after securing together said first base cloth and said second base close along the periphery thereof so that said at least one auxiliary bag is located between said main bag and said periphery and a division between said main bag and said auxiliary bag has a second rupture strength which is less than said first rupture strength; and (c) turning the first base cloth and the second base cloth inside out via the gas inlet after forming said main bag and at least one auxiliary bag so that said at least one auxiliary bag can be located interiorly of said main bag.
Claim 3
Dependent Claim
23 words
The method as claimed in claim 1, wherein said securing includes a step of stitching the first and the second base cloths together.
Claim 4
Dependent Claim
23 words
The method as claimed in claim 1, wherein said securing includes a step of bonding the first and the second base cloths together.
Claim 5
Dependent Claim
23 words
The method as claimed in claim 1, wherein said securing includes a step of welding the first and the second base cloths together.
Claim 6
Dependent Claim
52 words
The method as claimed in claim 1, wherein said step (b) includes a step of (b-1) securing the first and the second base cloths together in at least one position inwardly from said periphery so that said at least one position inwardly from said periphery is secured at said second rupture strength.
Claim 7
Dependent Claim
31 words
The method as claimed in claim 5, wherein said step (b-1) includes a step of securing the first and the second base cloths together and forming a plurality of auxiliary bags.
Claim 8
Dependent Claim
66 words
The method as claimed in claim 5, wherein: said step (a) includes a step of stitching the first and the second base cloths together by a first thread of a predetermined rupture strength; and said step (b-1) includes a steps of stitching the first and the second base cloths together by a second thread having a predetermined rupture strength less than that of the first thread.
Claim 9
Dependent Claim
81 words
A bag for an air bag system comprising: a main bag having a gas inlet and defined by secured portions which directly connect a first base cloth and a second base cloth and have a first rupture strength; and at least one auxiliary bag located interiorly of said main bag and defined by secured portions which directly connect said first base cloth and said second base cloth and have a second rupture strength which is less than said first rupture strength.
Claim 10
Dependent Claim
81 words
A bag for an air bag system comprising: a main bag having a gas inlet and defined by secured portions which directly connect a first base cloth and a second base cloth and have a first rupture strength; and at least one auxiliary bag located interiorly of said main bag and defined by secured portions which directly connect said first base cloth and said second base cloth and have a second rupture strength which is less than said first rupture strength.
Claim 11
Dependent Claim
16 words
The bag as claimed in claim 8, wherein said secured portions are joined by being stitched.
Claim 12
Dependent Claim
16 words
The bag as claimed in claim 8, wherein said joined portions are secured by being bonded.
Claim 13
Dependent Claim
16 words
The bag as claimed in claim 8, wherein said secured portions are joined by being welded.
Claim 14
Dependent Claim
120 words
An air bag system comprising: deceleration detecting unit detecting deceleration exerted on an automobile; a control unit generating a control signal when said deceleration detecting unit detects a deceleration larger than a predetermined level; a gas releasing unit releasing a gas when it receives said control signal; and a bag including a main bag having a gas inlet and defined by secured portions which directly connect a first base cloth and a second base cloth and have first rupture strength, and at least one auxiliary bag located interiorly of said main bag and defined by secured portions which directly connect said first and second base cloths and have a second rupture strength which is less than said first rupture strength.
Claim 15
Dependent Claim
120 words
An air bag system comprising: deceleration detecting unit detecting deceleration exerted on an automobile; a control unit generating a control signal when said deceleration detecting unit detects a deceleration larger than a predetermined level; a gas releasing unit releasing a gas when it receives said control signal; and a bag including a main bag having a gas inlet and defined by secured portions which directly connect a first base cloth and a second base cloth and have first rupture strength, and at least one auxiliary bag located interiorly of said main bag and defined by secured portions which directly connect said first and second base cloths and have a second rupture strength which is less than said first rupture strength.
Claim 16
Dependent Claim
89 words
A bag for an air bag system comprising: a main bag having a gas inlet and defined by first secured portions which directly connect a first base cloth and a second base cloth and have a first rupture strength; and at least one auxiliary bag located interiorly of said main bag and defined by second secured portions which directly connect said first base cloth, said second base cloth and a part of said first secured portions and have a second rupture strength which is less than said first strength.
Claim 17
Dependent Claim
89 words
A bag for an air bag system comprising: a main bag having a gas inlet and defined by first secured portions which directly connect a first base cloth and a second base cloth and have a first rupture strength; and at least one auxiliary bag located interiorly of said main bag and defined by second secured portions which directly connect said first base cloth, said second base cloth and a part of said first secured portions and have a second rupture strength which is less than said first strength.
References Cited (Backward Citations)
US4243248A
Cited
JPH0271051A
Cited
JPH0367748A
Cited
JPH03136945A
Cited
JPH03182854A
Cited
GB2257950A
Cited
US5280954A
Cited
EP0553542A1
Cited
US5358273A
Cited
JPH0672267A
Cited
US5454595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-04 | 2000-08-05 | 2001-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-04 | 2004-08-05 | 2005-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-04 | 2008-08-05 | 2009-02-04 | $7700.00 | Window Closed / Lapsed |