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Seat pad for vehicle

A technology for seat cushions and vehicles, applied in vehicle seats, vehicle parts, special positions of vehicles, etc., can solve the problems of lack of softness, limited softness, etc., and achieve good riding stability, good tactility of legs, The effect of reducing manufacturing costs

Inactive Publication Date: 2008-07-02
株式会社アーケム
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the same ratio of urethane mixed stock solution, through special design in shape, when the lower part of the leg has a soft feeling, the soft feeling that can be given is limited, and the sufficient softness required by the lower part of the leg cannot be obtained. sense

Method used

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  • Seat pad for vehicle
  • Seat pad for vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、 comparative example 1、2

[0041] The polyol mixture and isocyanate components were mixed into the urethane mixture for hip shaping and the urethane mixture for leg shaping with the isocyanate index shown in Table 1, and then poured into the metal mold to form it. Seat cushions for vehicles. The side bank is formed by injecting a urethane mixed stock solution using a polyol component mixed solution in a different proportion. The lower part of the leg is further reduced in hardness by methods such as hollowing the inner part.

[0042] The density and 25% hardness (JASO-M304) of the lower hips and lower legs of the obtained vehicle seat cushion were measured. The results are shown in Table 1.

[0043] Table 1

[0044]

[0045] The following items can be seen from Table 1.

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Abstract

A seat pad 1 for vehicle in which an urethane raw material for forming an under-buttocks section 2 and an urethane raw material for forming an under-thighs section 3 are prepared from polyol-containing liquid of the same composition and the hardness of the under-thighs section 3 is set to be lower than the hardness of the under-buttocks section 2 by setting the isocyanate indexes of the urethane raw materials different from each other. A polyurethane foam seat pad for vehicle of which the under-buttocks section has enough high hardness providing excellent seating stability and the under-thighs section has low hardness providing soft touch can be provided even when the polyol-containing liquid of the same composition is used for the both sections.

Description

Technical field [0001] The present invention relates to a seat cushion for a vehicle made by foaming and molding a mixed urethane solution. In particular, it relates to a seat cushion for a vehicle in which the hardness of the lower leg is lower than that of the lower hip by changing the isocyanate index of the urethane mixed stock solution for forming the lower part of the seat surface and the urethane mixed stock solution for forming the lower part of the leg. Background technique [0002] Vehicle seat cushions are usually made of soft polyurethane foam or semi-rigid polyurethane foam. For vehicle seat cushions, in order to improve the comfort during riding while ensuring support stability and safety, and to relieve fatigue during long-term riding, cushioning, hardness, and vibration are implemented in terms of materials and structures. Improvements in absorbency, etc. [0003] The seat cushion for a vehicle is mainly composed of the lower part of the hip, the lower part of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47C27/14A47C7/18B29C39/02B29C39/24C08G18/48A47C7/02B29C39/00B29C44/04B60N2/90
CPCC08G2101/0008C08G2101/0058C08G18/48A47C7/022B29C44/0461B29C39/003A47C7/029C08G2110/0058C08G2110/0008
Inventor 杉山直人江部一成川岛功
Owner 株式会社アーケム