EP3535155A1 - Matelassure de siege de vehicule automobile - Google Patents
Matelassure de siege de vehicule automobileInfo
- Publication number
- EP3535155A1 EP3535155A1 EP17804618.1A EP17804618A EP3535155A1 EP 3535155 A1 EP3535155 A1 EP 3535155A1 EP 17804618 A EP17804618 A EP 17804618A EP 3535155 A1 EP3535155 A1 EP 3535155A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- padding
- sheet
- cushion
- seat
- cap
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/70—Upholstery springs ; Upholstery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
- B60N2/0033—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat mounted on or in the foam cushion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
- B60N2/0027—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat for detecting the position of the occupant or of occupant's body part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
- B60N2210/40—Force or pressure sensors
- B60N2210/46—Electric switches
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
- B60R21/01526—Passenger detection systems using force or pressure sensing means using piezoelectric elements
Definitions
- the invention relates to a seat pad of a motor vehicle, a motor vehicle seat comprising such padding and a safety assembly comprising such a seat.
- a flexible sheet for detecting the presence of an occupant of said seat said sheet being placed on said cushion on a receiving face of said occupant, said sheet being based on a sheet on which is printed a circuit based on conductive ink, said ink being based on conductive particles embedded in an elastic insulating binder, said circuit being intended to be powered by a generator,
- a covering cap of said cushion said cap being paved on said cushion covering said lap, said cap being provided with return means clinging on reciprocal means integral with said cushion and peripheral attachment means intended to cooperate with reciprocal means external to said padding provided on said seat.
- the web disclosed in this document is provided with a plurality of pressure sensors, allowing detection of the presence and / or positioning of the occupant on the padding.
- the detection sheet is integrated with the coating cap.
- the aim of the present invention is to propose an arrangement allowing the detection sheet to be free of original stretching in the absence of an occupant and also that the stretching of said sheet follow at best the deformation of the receiving face of the padding cushion under the weight of said occupant.
- the invention proposes a seat pad for a motor vehicle seat, said padding comprising:
- a flexible sheet for detecting the presence of an occupant of said seat said sheet being placed on said cushion on a receiving face of said occupant, said sheet being based on a sheet on which is printed a circuit based on conductive ink, said ink being based on conductive particles embedded in an elastic insulating binder, said circuit being intended to be powered by a generator,
- a covering cap of said cushion said cap being paved on said cushion covering said lap, said cap being provided with return means clinging on reciprocal means integral with said cushion and peripheral attachment means intended to cooperate with reciprocal means external to said padding provided on said seat,
- Said sheet is elastically stretchable
- Said ply is, on the one hand, dissociated from said cap and, on the other hand, bonded, at least partially, by the backside face of said sheet, to said cushion so as to stretch when said cushion is deformed by receiving an occupant, and to stretch said circuit accordingly so as to increase the electrical resistance thereto.
- the positioning terms in the space are taken with reference to the padding mounted in the vehicle.
- the sheet is likely to stretch too elastically and to see the electrical resistance of the circuit increase,
- any support communicated to said cushion by receiving an occupant results in a deformation of said cushion which is reflected, by said bonding, on said sheet which is stretched with the resulting increase in electrical resistance for the circuit; conversely, when the occupant withdraws from the padding, the sheet returns to its undrawn configuration and said circuit its original electrical resistance.
- the invention proposes a motor vehicle seat comprising such a padding.
- the invention proposes a safety assembly comprising such a seat.
- FIG. 1 is a partial schematic sectional view of a padding according to one embodiment, said padding being mounted on a seat frame
- FIG. 2 is a schematic front view of a sheet according to one embodiment
- Figure 3 is a schematic representation of a conductive ink.
- a flexible sheet 3 for detecting the presence of an occupant of said seat said sheet being placed on said cushion on a receiving surface of said occupant, said sheet being based on a sheet 9 on which is printed - in particular by screen printing an electrical circuit 10 based on conductive ink, said ink being based on conductive particles 1 1 - for example metallic - embedded in an elastic insulating binder 12 - for example based on polyurethane -, said circuit being intended to be powered by a generator,
- Said sheet is elastically stretchable
- Said ply is, on the one hand, dissociated from said cap and, on the other hand, bonded, at least partially, by the backside face of said sheet, to said cushion so as to stretch when said cushion is deformed by receiving an occupant, and stretching said circuit accordingly to increase its electrical resistance.
- cap 4 being provided with return means 5 hanging on reciprocal means 6 integral with the cushion 2 and peripheral attachment means 7, this implies that said cap is not glued to said cushion.
- the rear face 13 of the sheet 9 is bonded at least by a portion of its periphery, along two opposite edges, on the cushion.
- an electrical circuit 10 comprising a network of transversely extending filaments 14, as illustrated in FIG. 2, provision can be made for a bonding of the sheet 3 by its lateral edges on the cushion 2 for observe its transverse stretch when padding 1 receives an occupant.
- the back face 13 of the sheet 9 is entirely bonded to the cushion 2.
- Such an arrangement may be relevant when the electrical circuit 10 has filaments 14 extending in multiple directions.
- the sheet 9 is elastically stretchable in at least one direction of at least 5% with respect to its dimension in said direction when it is not stretched.
- the sheet 9 is textile-based, for example in the form of a mesh.
- the sheet 9 must of course have no absorption properties of the ink during its deposition - this by "blotting effect" - otherwise it will not be possible to produce the electrical circuit 10 expected.
- the ply 3 has at least one orifice 15 for passing a return means 5 of the cap 4.
- the sheet 3 comprises a plurality of electrical circuits 10 connected in parallel, said circuits occupying, when said sheet is seen from the front - that is to say from above in the case of a seat padding or front in the case of backrest padding - two separate areas of padding 1.
- the padding 1 is intended to form a seat, said padding having a first front area and a second rear area each receiving a respective front and rear circuit 10.
- a motor vehicle seat comprising such padding 1, the cap 4 of said padding being fixed by its peripheral fastening means 7 - in particular in the form of profiles sewn on the periphery of said cap, said profile having a hook-shaped profile - to reciprocal external means 8 to said padding provided on said seat - said external reciprocal means being in particular in the form of blades from the armature of said seat.
- a safety assembly comprising:
- a device for measuring the electrical resistance of said circuit, or of its subcircuits, under the effect of a support carried by an occupant on the padding 1 A security system, for example in the form of a warning light in the event of an unrestrained belt or an airbag,
- the analysis device may in particular be configured to detect the presence of an occupant on the padding 1, so as to activate if necessary a detection light of a non-fastening of his seat belt or the triggering of an airbag in case of collision of the vehicle.
- the analysis device can analyze the position of the occupant on the padding 1, for example so as to inhibit, as mentioned above, the triggering of an airbag if said occupant is positioned in position too much. advanced on a padding 1 of seat.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1660696A FR3058369B1 (fr) | 2016-11-04 | 2016-11-04 | Matelassure de siege de vehicule automobile |
| PCT/FR2017/053021 WO2018083428A1 (fr) | 2016-11-04 | 2017-11-05 | Matelassure de siege de vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3535155A1 true EP3535155A1 (fr) | 2019-09-11 |
Family
ID=57909647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17804618.1A Withdrawn EP3535155A1 (fr) | 2016-11-04 | 2017-11-05 | Matelassure de siege de vehicule automobile |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20190283628A1 (fr) |
| EP (1) | EP3535155A1 (fr) |
| FR (1) | FR3058369B1 (fr) |
| WO (1) | WO2018083428A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3069501B1 (fr) * | 2017-07-28 | 2019-09-06 | Cera Tsc | Matelassure pour siege de vehicule automobile |
| FR3086906B1 (fr) * | 2018-10-09 | 2021-06-18 | Tesca France | Matelassure pour siege de vehicule automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108842A (en) * | 1998-06-29 | 2000-08-29 | Lear Automotive Dearborn, Inc. | Vehicular seat assembly having a flexible air bag suppression sensor apparatus and method of installing the flexible air bag suppression sensor apparatus |
| US6395121B1 (en) * | 1999-02-04 | 2002-05-28 | Chartpak, Inc. | Method for making fabric-based, adhesively mounted printed circuit for upholstered seats and the like |
| US6643925B1 (en) * | 1999-09-02 | 2003-11-11 | Lear Corporation | Installation device for installing a flexible sensor on a seat cushion |
| JP4356243B2 (ja) | 2001-01-12 | 2009-11-04 | 株式会社デンソー | 乗員着座センサの取付け構造 |
| LU91866B1 (en) | 2011-09-05 | 2013-03-06 | Iee Sarl | Assembly of a functional component in a vehicle |
| FR3008874B1 (fr) * | 2013-07-24 | 2016-07-29 | Comatel Casuel | Element d'assise ameliore pour siege |
-
2016
- 2016-11-04 FR FR1660696A patent/FR3058369B1/fr active Active
-
2017
- 2017-11-05 US US16/346,616 patent/US20190283628A1/en not_active Abandoned
- 2017-11-05 EP EP17804618.1A patent/EP3535155A1/fr not_active Withdrawn
- 2017-11-05 WO PCT/FR2017/053021 patent/WO2018083428A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20190283628A1 (en) | 2019-09-19 |
| FR3058369B1 (fr) | 2019-02-01 |
| FR3058369A1 (fr) | 2018-05-11 |
| WO2018083428A1 (fr) | 2018-05-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20190528 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
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| AX | Request for extension of the european patent |
Extension state: BA ME |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20200904 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TESCA PACIFIC |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20220601 |