Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
  • G01D11/20—Caging devices for moving parts when not in use
• • 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
• • 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
  • B60N2/7094—Upholstery springs
• • 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

Definitions

• the invention relates to a detection device comprising a housing consisting of at least a first and a second portion being movable in translation relative to one another between a first and a second operating position .
• Said device comprises holding means exerting a holding force opposing the movement of the first and second parts of the first position to the second operating position.
• the detection device comprises an electrical contact comprising at least two electrical states, closed or open, each electrical state being associated with one of the operating positions of the first and second parts and hooking means for hanging said housing on an external support .
• the invention also relates to a seat comprising such a device.
• the contact of the detection device can be positioned under the seat surface of the vehicle seat. As soon as the passenger sits on the seat, the seat is deformed in the direction and switches the contact of the detection device. The contact, in an open state, goes into a closed state. A closing signal is then provided to processing means.
• the invention is therefore to overcome the disadvantages of the prior art, so as to provide a detection device whose positioning on the support can be easily controlled.
• the electrical contact is in a closed electrical state when the two parts are in the second operating position, the electrical contact being in an open electrical state when the first and second parts are in the first operating position.
• the attachment means comprise at least one elastic arm having a first end integral with the first part and a second end comprising the locking means intended to couple with the second part in the second part. operating position.
• the second part is sliding relative to the first part of the housing.
• the attachment means comprise elastic arms distributed uniformly on a peripheral surface of the first part of the housing.
• a seat according to a development mode of the invention, comprises at least one deformable seat surface on which is intended to sit a passenger, a rigid frame to be attached to a vehicle.
• a detection device as defined above, is hooked by the attachment means under the seating surface.
• the seat surface comprises a deformable foam directly controlling the displacement of the second portion of the housing to the first operating position.
• the deformable foam is in contact with the second part.
• the seat comprises a folder in which is positioned a detection device as defined above, said detection device detecting the deformation of a first part of the file relative to a second part folder.
• FIG. 1 represents an exploded perspective view of the detection device according to one embodiment of the invention
• FIG. 2 represents a perspective view of the detection device according to FIG. 1, fixed on a support;
• FIG. 4 represents a side view of the detection device according to FIG. 1, fixed on a support and in an inactive state;
• FIG. 5 represents a side view of the detection device according to FIG. 1, fixed on a support and in an active state;
• the detection device comprises a housing consisting of at least a first and a second part 2, 3.
• the first and second parts 2, 3 can move relative to each other between a first and a second operating position of the detection device.
• the first and second operating positions respectively correspond to an active detection state and an inactive detection state of the detection device.
• the first and second parts 2, 3 are held in one of the operating positions by holding means 8.
• the holding means 8 comprise a compression spring.
• the holding means 8 tend to move the parts 2, 3 away from each other in order to place the detection device in a first operating position.
• a holding force exerted by the holding means 8 tends to oppose the movement of the first and second parts 2, 3 towards the second operating position.
• the second part 3 is then farthest from the first part 2.
• the volume of the housing 1 is then maximum.
• the detection device comprises hooking means 5 for holding said device on an external support 6.
• the attachment means 5 are more particularly intended to maintain the device of detection on a motor vehicle seat.
• the external support 6 is then mainly composed of a lattice constituting one of the elements of a structure carrying a motor vehicle seat.
• the attachment means 5 then comprise at least one hook 10 which is fixed on one of the meshes of the lattice.
• the attachment means 5 comprise locking means 7 for holding two parts 2, 3 of the housing 1 in one of the two operating positions.
• the locking means 7 comprise at least one pin can couple with the second portion 3 of the housing 1, in particular at an outer surface.
• the locking means 7 hold two parts 2, 3 in the second operating position.
• the electrical contact 4 is then in a closed electrical state. Conversely, the electrical contact 4 is in an open electrical state when the first and second parts 2, 3 are in the first operating position.
• the attachment means 5 comprise at least one elastic arm 9 having a first end 9A secured to the first portion 2 and a second end 9B having the locking means 7.
• the elastic arm or arms 9 extend substantially parallel to the side walls of the first part 2.
• the locking means 7 are intended to be coupled to the second part 3 in the second operating position, the detection device not being fixed on the external support 6.
• the attachment means 5 comprise two resilient arms 9 distributed uniformly on a peripheral surface of the first part 2 of the housing 1. As shown in FIGS. 1 to 5, the two elastic arms 9 of the attachment means 5 are respectively placed on two parallel faces of the housing 1.
• the elastic arms 9 of the attachment means 5 are slightly spaced so that the hooks 10 hooking means 5 come to couple with the meshes of the lattice.
• the displacement of the resilient arms 9 of the attachment means 5 make the locking means 7 inoperative. Indeed, when the elastic arms 9 are moved apart, the lug or lugs of the locking means 7 are no longer in contact with the second Part 3 of the housing 1. This unlocking of the parts 2, 3 of the housing 1, then releases the action of the compression spring of the holding means 8.
• the two parts move away from each other to pass the second operating position at the first operating position.
• the electrical contact 4 which was in a closed electrical state before the installation of the detection device, is now in an open electrical state.
• the mounting of the detection device on the external support 6 causes an automatic change of the electrical state of the electrical contact 4.
• the electrical contact is indeed a closed electrical state. in an open electrical state.
• the locking means 7 can still be operational and operate a maintenance of the parts 2, 3 in the second operating position.
• the elastic arms have not been sufficiently spaced apart to allow the hooks 10 to couple to the meshes of the lattice and the lugs of the locking means 7 are further coupled with the second part 3.
• the electrical contact 4 is then still in a closed electrical state which could be analyzed as a lack of attachment of said device.
• the locking means 7 are and remain inoperative as the attachment means 5 are coupled with the external support 6. In other words, the attachment of the housing on the external support 6 by the attachment means makes inoperative the means locks 7.
• the two parts 2, 3 of the housing 1 can freely move from the first operating position to the second operating position.
• the detection device can successively switch from an active detection state to an inactive detection state, and vice versa.
• These changes of state of the detection device accompanying the passage of a closed to open electrical state of the electrical contact 4 are taken into account by the processing means.
• the holding means 8 tend to position the parts 2, 3 in the first operating position of the detection device.
• the contact 4 of said device is then in an open electrical state and the detection device is then in an inactive detection state.
• the electrical contact 4 When a displacement force is applied to the second part 3 and tends to cause it to move towards the first part 2 by opposing the holding force of the holding means 8, the electrical contact 4 will switch from one state to another. electrical open to a closed electrical state. This change of state is responsible for sending a signal to the processing means.
• the displacement force is generally due to the presence of a person on the seating surface of the seat.
• the deformation of the seating surface of the seat in the presence of a person causes the displacement of one of the housing parts, in particular of the second part 3.
• the detection device leaves the second operating position to reposition itself in the first operating position.
• the electrical contact 4 will switch in a closed electrical state to an open electrical state.
• the two attachment means 5 comprise resilient arms 9 distributed in a non-uniform manner on a peripheral surface of the first portion 2.
• the two resilient arms 9 means 5 are respectively placed on two perpendicular faces of the first part 2 of the housing 1.
• the detection device is particularly intended to be combined with a seat, including a motor vehicle seat.
• the seat includes less a deformable seat surface on which is intended to come to sit a person.
• the seat surface comprising a deformable foam, is connected to a rigid frame for attachment to a vehicle.
• the detection device 1 as defined above is hooked by these attachment means 5 under the seat surface so the deformable foam can directly control the displacement of the second portion 3 of the housing 1 to the second operating position at the moment of deformation of the seating surface.
• the detection device is connected to vehicle analysis means.
• the information provided by said detection device may be combined with the analysis of other functional parameters of a vehicle.
• the deformable foam is in direct contact with the second part 3.
• said seat comprises a folder in which is positioned a detection device 1 according to the invention.
• the detection device tends to detect the deformation of a first part of the file relative to a second part of the file.

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)
• Push-Button Switches (AREA)
• Air Bags (AREA)
• Chair Legs, Seat Parts, And Backrests (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=37025009

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (14)

• 2006
  • 2006-01-30 FR FR0600806A patent/FR2896876B1/fr not_active Expired - Fee Related
• 2007
  • 2007-01-25 JP JP2008552842A patent/JP4980373B2/ja not_active Expired - Fee Related
  • 2007-01-25 EP EP07730859A patent/EP1979718A2/de not_active Withdrawn
  • 2007-01-25 US US12/087,773 patent/US7851716B2/en not_active Expired - Fee Related
  • 2007-01-25 CN CN2007800039921A patent/CN101379371B/zh not_active Expired - Fee Related
  • 2007-01-25 WO PCT/FR2007/000141 patent/WO2007085732A2/fr not_active Ceased
  • 2007-01-25 CA CA2636851A patent/CA2636851C/en not_active Expired - Fee Related

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events