Patent EP0788940A2 successfully refreshed from Google Patents.
EP0788940A2
Expired / Lapsed
EP
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Seat structure having a side impact air bag apparatus
Assignee: Araco Co Ltd
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Filing: 1996-09-12
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Granted: —
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Expires: 2016-09-12
Abstract
Abstract A seat structure having a side impact air bag apparatus, constructed such that the air bag apparatus, which is integrated into a side portion of a seat back which side portion opposes a vehicle door, is activated at the time of a side impact such that a sewn portion of a seat surface layer, which is formed by sewing a front seat surface layer for covering the front of the seat back to a side seat surface layer for covering the side of the seat back, breaks and an air bag body inflates between a side portion of a vehicle body and the side of a vehicle occupant, comprising a sheet member provided inside the side seat surface layer integrally with the side seat surface layer, the sheet member being harder to stretch than the side seat surface layer, and one end of the sheet member being sewn to the sewn portion; and a fixing member provided inside the seat back, the fixing member being engaged with another end of the sheet member which is provided on the opposite side of the one end of the sheet member.
Inventors
- 👤 Yasunori Hasagawa
- 👤 Hisaaki Kato
- 👤 Mituyoshi Ohno
- 👤 Shigeharu Nakai
- 👤 Hitoshi Yanase
- 👤 Kenji Matsuzaki
- 👤 Masahito Kanehara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 02:53
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/207; B60R2021/0002; B60R2021/0006; B60R21/23; B60R21/235; B60R2021/23533; B60R2021/23538; B60R21/217; B60R21/2176
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
192 words
A seat structure having a side impact air bag apparatus, said seat structure being constructed such that said air bag apparatus, which is integrated into a side portion of a seat back which side portion opposes a vehicle door, is activated at the time of a side impact such that a sewn portion of a seat surface layer, which is formed by sewing a front seat surface layer for covering the front of the seat back to a side seat surface layer for covering the side of the seat back, breaks and an air bag body inflates between a side portion of a vehicle body and the side of a vehicle occupant, comprising: a sheet member provided inside said side seat surface layer integrally with said side seat surface layer, said sheet member being harder to stretch than said side seat surface layer, and one end of said sheet member being sewn to said sewn portion; and a fixing member provided inside the seat back, said fixing member being engaged with another end of said sheet member which is provided on the opposite side of said one end of said sheet member.
Claim 2
Dependent Claim
72 words
A seat structure according to claim 1, wherein said one end of said sheet member is tacked to said side seat surface layer and is, together with said side seat surface layer, sewn to said front seat surface layer by sewing thread at a position located at a vehicle transverse direction outer side of the position where said one end of said sheet member is tacked to said side seat surface layer.
Claim 3
Dependent Claim
30 words
A seat structure according to claim 3, further comprising: an engaging member which, together with said side seat surface layer, is attached to said other end of said sheet member.
Claim 4
Dependent Claim
15 words
A seat structure according to claim 3, wherein said engaging member engages said fixing member.
Claim 5
Dependent Claim
22 words
A seat structure according to claim 4, wherein said fixing member is a wire fixed to a frame of the seat back.
Claim 6
Dependent Claim
48 words
A seat structure according to claim 1, wherein said sheet member is shaped in the form of a strap having a width narrower than a vertically-extending width of the air bag body, and is disposed at a position including a vertically-extending central portion of the air bag body.
Claim 7
Dependent Claim
73 words
A seat structure according to claim 1, further comprising: a welt provided at said sewn portion sewn to said front seat surface layer, said side seat surface layer and said sheet member, and composed of a welt fabric and a welt cord, said welt remaining on said side seat surface layer side in a region in which said welt is sewn to at least said sheet member when the air bag body inflates.
Claim 8
Dependent Claim
68 words
A seat structure according to claim 7, wherein said welt fabric is sewn by second sewing thread for sewing the side seat surface layer and said sheet member together, said second sewing thread being located further toward an inner side of a seat than the position of a first sewing thread for sewing said front seat surface layer, said side seat surface layer and said sheet member together.
Claim 9
Dependent Claim
39 words
A seat structure according to claim 8, wherein said second sewing thread has a higher strength than a strength of said first sewing thread or has a smaller sewing pitch than a sewing pitch of said first sewing thread.
Claim 10
Dependent Claim
49 words
A seat structure according to claim 7, wherein said sheet member is provided within a range of the vertically-extending width of the air bag body, and is provided so as to have a width greater than or equal to one-half of the vertically-extending width of the air bag body.
Claim 11
Dependent Claim
40 words
A seat structure according to claim 7, wherein said welt cord has at least one weak portion which is provided within a range of the vertically-extending width of the air bag body and breaks when the air bag body expands.
Claim 12
Dependent Claim
204 words
A seat structure having a side impact air bag apparatus, said seat structure being constructed such that said air bag apparatus, which is integrated into a side portion of a seat back which side portion opposes a vehicle door, is activated at the time of a side impact such that a sewn portion of a seat surface layer, which is formed by sewing a front seat surface layer for covering the front of the seat back to a side seat surface layer for covering the side of the seat back, breaks and an air bag body inflates between a side portion of a vehicle body and the side of a vehicle occupant, comprising: a sheet member provided inside said side seat surface layer and provided such that a front end of said sheet member located at a vehicle longitudinal direction front side of the seat back is fixed to said side seat surface layer, said sheet member being harder to stretch than said side seat surface layer; and a fixing member provided inside the seat back, said fixing member being engaged with a vehicle longitudinal direction rear end of said sheet member located at a vehicle longitudinal direction rear side of the seat back.
Claim 13
Dependent Claim
72 words
A seat structure according to claim 12, wherein said front end of said sheet member is tacked to said side seat surface layer and is, together with said side seat surface layer, sewn to said front seat surface layer by sewing thread at a position located at a vehicle transverse direction outer side of the position where said front end of said sheet member is tacked to said side seat surface layer.
Claim 14
Dependent Claim
36 words
A seat structure according to claim 13, further comprising: an engaging member attached to the rear end of said sheet member, said rear end of said sheet member engaging said fixing member through said engaging member.
Claim 15
Dependent Claim
48 words
A seat structure according to claim 12, wherein said sheet member is shaped in the form of a strap having a width narrower than a vertically-extending width of the air bag body, and is disposed at a position including a vertically-extending central portion of the air bag body.
Claim 16
Dependent Claim
73 words
A seat structure according to claim 12, further comprising: a welt provided at the sewn portion sewn to said front seat surface layer, said side seat surface layer and said sheet member, and composed of a welt fabric and a welt cord, said welt remaining on said side seat surface layer side in a region in which said welt is sewn to at least said sheet member when the air bag body inflates.
Claim 17
Dependent Claim
68 words
A seat structure according to claim 16, wherein said welt fabric is sewn by second sewing thread for sewing said side seat surface layer and said sheet member together, said second sewing thread being located further toward an inner side of a seat than the position of a first sewing thread for sewing said front seat surface layer, said side seat surface layer and said sheet member together.
Claim 18
Dependent Claim
39 words
A seat structure according to claim 17, wherein said second sewing thread has a higher strength than a strength of said first sewing thread or has a smaller sewing pitch than a sewing pitch of said first sewing thread.
Claim 19
Dependent Claim
49 words
A seat structure according to claim 16, wherein said sheet member is provided within a range of the vertically-extending width of the air bag body, and is provided so as to have a width greater than or equal to one-half of the vertically-extending width of the air bag body.
Claim 20
Dependent Claim
40 words
A seat structure according to claim 16, wherein said welt cord has at least one weak portion which is provided within a range of the vertically-extending width of the air bag body and breaks when the air bag body expands.
Claim 21
Dependent Claim
116 words
A seat structure having a side impact air bag apparatus, said seat structure being constructed such that said air bag apparatus, which is integrated into a side portion of a seat back which side portion opposes a vehicle door, is activated at the time of a side impact such that a sewn portion provided at a seat surface layer breaks and an air bag body expands between a side portion of a vehicle body and the side of a vehicle occupant, comprising: a tensile force transfer member for connecting a side seat surface layer, which covers the side of the seat back, and a fixing member, which is provided inside the seat back, to each other.
Claim 22
Dependent Claim
46 words
A seat structure according to claim 21, wherein said tensile force transfer member is provided at the vehicle transverse direction inner side of an air bag case so as to extend along the outer periphery of the air bag case provided at said air bag apparatus.
Claim 23
Dependent Claim
27 words
A seat structure according to claim 22, wherein said air bag case has an aperture defined in a portion thereof opposed to said tensile force transfer member.
Claim 24
Dependent Claim
40 words
A seat structure according to claim 21, further comprising: an engaging member attached to a longitudinal direction end portion of said tensile force transfer member, said tensile force transfer member being engaged with said fixing member via said engaging member.
Claim 25
Dependent Claim
18 words
A seat structure according to claim 24, wherein said fixing member is mounted to said air bag case.
Claim 26
Dependent Claim
25 words
A seat structure according to claim 24, wherein said fixing member is mounted to a side frame which is a portion of the seat back.
Claim 27
Dependent Claim
25 words
A seat structure according to claim 24, wherein said fixing member is provided at a seat wire which is a portion of the seat back.
References Cited (Backward Citations)
No citation records indexed.
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