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Molded body, method of manufacturing the same, seat material for vehicles, and method of manufacturing the same

A manufacturing method and molding technology, which are applied to vehicle seats, vehicle components, special positions of vehicles, etc., can solve the problems of insufficient bonding of boundary parts, weak bonding strength, and inability to foam, and achieve a good ride. Comfort, Vibration Suppression Effect

Active Publication Date: 2015-04-15
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the techniques shown in Patent Documents 1 and 2, there is no description of how to position the two types of polyurethane raw materials in the mold respectively, so there is a problem that the two types of polyurethane raw materials cannot be foamed at desired positions respectively. , at the position where one polyurethane raw material is expected to be foamed, another polyurethane raw material flows into and foams
Therefore, there is a problem in the molded product that the boundary portion between the low-hardness polyurethane and the high-hardness polyurethane cannot be joined sufficiently, resulting in weak joint strength

Method used

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  • Molded body, method of manufacturing the same, seat material for vehicles, and method of manufacturing the same
  • Molded body, method of manufacturing the same, seat material for vehicles, and method of manufacturing the same
  • Molded body, method of manufacturing the same, seat material for vehicles, and method of manufacturing the same

Examples

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Embodiment Construction

[0086] Next, an embodiment of the present invention will be described.

[0087] (Structure of Seat Parts for Vehicles)

[0088] First, the structure of the vehicle seat component of the present embodiment will be described. figure 1 Among them, (a) is a perspective view of the vehicle seat member 1, and (b) is an enlarged cross-sectional view cut along line A-A' of (a). in addition, figure 1 The directions for the vehicle in which the vehicle seat member 1 is mounted are shown in the drawings and subsequent drawings. This vehicle seat component 1 (molded body) is a seat back pad forming a vehicle seat. That is, the seat back of the vehicle seat is formed by covering the vehicle seat member 1 with a surface material such as leather or cloth. This vehicle seat member 1 is composed of a main body portion 2 (first molded product) and a guard portion 3 (second molded product), wherein the main body portion 2 constitutes a central portion of the vehicle seat member 1 in the vehi...

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Abstract

There is provided a molded body including a main portion and a bank portion each of which is formed by foaming and molding a foam material. The main portion is made of urethane material which is softer than the material for the bank portion. At a boundary portion between the main and bank portions, the main portion is formed in a continuous interlocking profile and the bank portion is also formed in another continuous interlocking profile. The interlocking profile and the another interlocking profile are mated to each other so as to prevent separation between the main portion and the bank portion in a direction of an arrow (vehicle width direction). The boundary portion is provided by partitioning the cavity in a single mold with a weir, introducing different foam materials into both sides of the weir and foaming the introduced materials.

Description

technical field [0001] The present invention relates to a molded body, a manufacturing method of the molded body, a vehicle seat component, and a manufacturing method of the vehicle seat component. Background technique [0002] Seat back pads and seat pads, which are components of vehicle seats, are produced by foaming and molding foam materials such as polyurethane. A seat part like this is composed of a relatively soft body part and relatively hard guard parts provided on both sides of the body part. In this way, the main body portion and the guard portion have different hardnesses, and are formed of foam materials having different hardnesses after foaming. [0003] Patent Documents 1 to 3 disclose techniques for producing such a seat member composed of a main body portion and a guard portion having different hardnesses. [0004] In Patent Documents 1 and 2, a technology is disclosed, that is, firstly, a polyurethane raw material is sprayed in a mold to make it foam, and...

Claims

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Application Information

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IPC IPC(8): B29C44/04B60N2/64
CPCB29C44/1214B29K2075/00B29C44/06B60N2/64B60N2/70B29K2105/04B29C44/08B60N2/7017B29L2031/771B29C44/353B29C44/0469B29C44/0476Y10T428/24496
Inventor 石井直人奥尚人小泉麻依中岛启
Owner HONDA MOTOR CO LTD
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