Seat

A technology of seat cushion and seat, applied in the field of seat cushion components, can solve problems such as numbness and poor riding comfort, and achieve the effects of reducing vibration and increasing relative displacement

Inactive Publication Date: 2004-09-22
DELTA TOOLING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when seat cushion components such as vehicle seats are usually highly rigid, the human body load is concentrated on the muscles near the ischial tuberosity, which deteriorates ride comfort and causes numbness when riding for a long time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0194] Knitting machine: Double Raschel knitting machine (Dabururatsucellu knitting machine) (9 gauge / 2.54cm, cylinder pitch 15mm)

[0195] Longitudinal density: 10 pieces / 2.54cm

[0196] Coil row density: 14 / 2.54cm

[0197] Finished thickness (distance between a pair of ground knitted fabric surfaces): 11.5mm

[0198] The ground yarn of one ground knitted fabric: 1170 decitex / 96f polyester BCF multifilament (crimp processing yarn)

[0199] The ground yarn of the other ground knitted fabric: 660 dtex / 192f polyester BCF multifilament (crimp processing yarn)

[0200] Link yarn: 660 decitex / 1f polyester

[0201] The structure of the knit fabric in one place: The change structure of the mesh of 2 courses

[0202] Knitted fabric organization on the other side: fine velvet knitting chain organization

[0203] The total thickness of the loops formed by the ground yarn and the connecting yarn of one ground knitted fabric: 1830 decitex (some are 3000 decitex)

[0204] The total...

manufacture example 2

[0211] Knitting machine: Double Raschel knitting machine (9 gauge / 2.54cm, cylinder spacing 15mm)

[0212] Longitudinal density: 10 pieces / 2.54cm

[0213] Coil row density: 14 / 2.54cm

[0214] Finished thickness (distance between a pair of ground knitted fabric surfaces): 11.5mm

[0215] The ground yarn of one ground knitted fabric: 1170 decitex / 96f polyester BCF multifilament (crimp processing yarn)

[0216] The ground yarn of the other ground knitted fabric: 660 dtex / 192f polyester BCF multifilament (crimp processing yarn)

[0217] Link yarn: 660 decitex / 1f polyester

[0218] The structure of the knitted fabric in one place: the change structure of 2 courses

[0219] Knitted fabric organization on the other side: fine velvet knitting chain organization

[0220] The total thickness of the loops formed by the ground yarn and the connecting yarn of one ground knitted fabric: 1880 decitex (some are 3000 decitex)

[0221] The total thickness of the loops formed by the groun...

manufacture example 3

[0229] Knitting machine: Double Raschel knitting machine (9 gauge / 2.54cm, cylinder spacing 15mm)

[0230] Longitudinal density: 9.8 / 2.54cm

[0231] Coil row density: 12.8 / 2.54cm

[0232] Finished thickness (distance between a pair of ground knitted fabric surfaces): 12.05mm

[0233] The ground yarn of one ground knitted fabric: 1170 decitex / 384f

[0234] The ground yarn of the knitted fabric on the other side: 560 decitex / 70f

[0235] Linking yarn: 560 dtex / 1f

[0236] The organization of one ground knitted fabric: Mesh of 1 pattern cycle (リピ ト ト) 2 courses

[0237] Knitted fabric organization on the other side: fine velvet knitting chain organization

[0238] The total thickness of the loops formed by the ground yarn and the connecting yarn of one ground knitted fabric: 1730 decitex

[0239] The total thickness of the loops formed by the ground yarn and the connecting yarn of the other ground knitted fabric: 1120 decitex

[0240] Compression rate of convex part: 89.1...

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PUM

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Abstract

A seat comprising a seat frame, and a cushion material supported by the seat frame and having a three-dimensional knitted fabric which is formed by joining, with connecting threads, a pair of ground knit fabrics which are disposed so as to be separated from one another, wherein the cushion material comprising a first region whose elastic compliance when a reaction force is applied to an extending side of the cushion material when an occupant is seated on the seat is substantially equivalent to an elastic compliance of a portion of the occupant's body pressing the cushion material and a second region whose elastic compliance is larger than that of the first region. Accordingly, a thin and light seat can be provided, load concentration on the occupant's tuber ishiadicum bottom portion when seated for a long period of time can be mitigated, and vibration-transmitting characteristics can be improved.

Description

technical field [0001] The present invention relates to various seats such as vehicle seats for automobiles and trains, chairs for office use or furniture, and the like, in which three-dimensional knitted fabrics are used as seat cushion members. Background technique [0002] In recent years, a vehicle seat using a thin three-dimensional structured mesh material (three-dimensional knitted fabric) that exhibits high cushioning properties and has many voids and is excellent in air permeability has become known. The three-dimensional knitted fabric is an elastic structure, which is formed into a truss structure (three-dimensional structure) by connecting a pair of ground knitted fabrics arranged separately from each other with many connecting yarns, and is difficult to be crushed. It has excellent air permeability, body pressure distribution properties, and impact absorption properties, and is thin in thickness, and can exhibit properties similar to highly elastic polyurethane ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60N2/58B60N2/70
CPCA47C31/006D10B2403/0211B60N2/58B60N2/70D10B2403/0221D04B21/16D10B2403/0213
Inventor 藤田悦则川崎诚司小仓由美安田荣一土居俊一加藤悦子茨木克也
Owner DELTA TOOLING CO LTD
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