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
  • B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
• • 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
  • B60N2/58—Seat coverings
  • B60N2/60—Removable protective coverings
  • B60N2/6009—Removable protective coverings covering more than only the seat
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
  • B60N2205/00—General mechanical or structural details
  • B60N2205/30—Seat or seat parts characterised by comprising plural parts or pieces

Definitions

• the covering wall and the padding are made with different materials.
• the padding has a superposition of at least two layers of cells, said layers being able to be made of the same material or of different materials.
• the cells are preferably identical and each define a unit pattern repeating several times in the same layer. The presence of a free space between the deformation zone and the covering wall means that these two elements are not linked.
• the seat element can, for example, be a seat or a backrest.
• the free space provided between said padding and the outer lateral edge of the sidewall will allow the padding to deform moderately above said outer side edge, while preserving said padding. If no free space was left between the padding and the outer lateral edge of the sidewall, the padding would fold directly around said outer lateral edge, overflowing from it, with the consequence of premature wear of the padding or even rupture. of it
• the padding has a lower zone which is placed under the upper zone and in continuity with said upper zone, said lower zone being linked to the lateral side. It is important that the padding has good stability within the seat, this stability being ensured in particular by the lower zone which is linked on the lateral side. Preferably, there is no interface layer between the lower zone and the upper zone of the padding.
• the height of the upper zone which is its dimension considered along a vertical axis is less than or equal to 20mm.
• the height of the upper zone is less than or equal to 10mm.
• the lower zone is linked to the lateral sidewall over the entire height of the contact zone between said lower zone and the lateral sidewall.
• the padding is composed of a stack of layers of cells, the layers constituting the lower zone being made of a material which is not very deformable and the layers constituting the upper zone are made of a deformable material .
• 3D printing allows the use of a wide variability of materials to obtain the most precise and complete final object possible, having the expected properties.
• Another subject of the invention is a method of manufacturing a seat element according to the invention by means of 3D printing.
• the method comprises the following steps:
• a seat element according to the invention has the advantage of being able to be manufactured quickly, automatically and precisely, while having the properties required to ensure good seating comfort. It also has the advantage of being able to be manufactured with a wide range of materials thanks to 3D printing, and therefore of having the structural characteristics adapted to the materials used. Thus, for example, the material used for the manufacture of the deformable zone of the padding will determine the value of the width of the free space provided between said padding and the lateral sidewall.
• Figure 1 is a perspective view of a seat base according to the invention manufactured by 3D printing
• Figure 2 is a sectional view of a seat base according to the invention in the absence of stress, showing the padding and the outer lateral edge of the lateral side, between which a free space has been provided,
• Figure 3 is a sectional view of a seat base according to the invention subjected to a vertical thrust, showing the padding and the outer lateral edge of the lateral side, between which a free space has been provided,
• Figure 4 is a sectional view of a seat base according to the invention in the absence of stress, showing the padding and the front edge of the sidewall in contact with each other,
• Figure 5 is a sectional view of a seat base according to the invention subjected to a vertical thrust, showing the padding and the front edge of the sidewall in contact with each other,

Landscapes

• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Seats For Vehicles (AREA)
• Automotive Seat Belt Assembly (AREA)
• Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=85037177

Family Applications (1)

Country Status (4)

Family Cites Families (5)

• 2022
  • 2022-10-06 FR FR2210259A patent/FR3140589B1/fr active Active
• 2023
  • 2023-10-05 EP EP23793438.5A patent/EP4598775A1/de active Pending
  • 2023-10-05 WO PCT/FR2023/051551 patent/WO2024074791A1/fr not_active Ceased
  • 2023-10-05 CN CN202380083502.2A patent/CN120303151A/zh active Pending

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