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Automobile body undercover

A technology for motor vehicles and car bodies, which is applied in the direction of body, vehicle parts, streamlined body, etc., can solve the problem of heavy weight of the under cover of the car body.

Inactive Publication Date: 2013-11-27
HOWA TEXTILE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, an automotive underbody cover made of a resin material using olefin as a main component has a problem of being heavy

Method used

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  • Automobile body undercover
  • Automobile body undercover
  • Automobile body undercover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] (1) Substrate layer 11

[0084] (a) Select glass fiber (average fiber length 75mm (3 inches), average diameter 10μm, weight 600g / m 2 ) as fiber reinforcing material 12.

[0085] (b) Select polypropylene fibers (average fiber length 64mm (2.5 inches), average diameter 6.6dtex and weight 600g / m 2 ) as the first thermoplastic synthetic resin 13.

[0086] (c) The total weight is set to 1200g / m 2 .

[0087] (d) Glass fibers (fibrous reinforcing material 12 ) and polypropylene fibers (first thermoplastic synthetic resin 13 ) were formed into a web by a mixer, and needle punched to obtain the base material layer 11 . As the substrate layer of Example 1, a product manufactured by Nihon Glass Fiber Industrial Co., Ltd. was selected.

[0088] (2) Non-woven fabric layer 15

[0089] (a) Select polypropylene fibers (average fiber length 64mm (2.5 inches), average diameter 6.6dtex and weight 100g / m 2 ) as the second thermoplastic synthetic fiber 16.

[0090] (b) Select polyet...

Embodiment 2

[0095] (1) Substrate layer 11

[0096] The same configuration as in Example 1 was selected as the base material layer 11 .

[0097] (2) Non-woven fabric layer 15

[0098] (a) The same polypropylene fiber as in Example 1 is selected as the second thermoplastic synthetic fiber 16 .

[0099] (b) Select polyethylene terephthalate fibers (average fiber length 64mm (2.5 inches), average diameter 11dtex and weight 150g / m 2 ) as the third thermoplastic synthetic fiber 17.

[0100] (c) In the blending amount of polypropylene fiber (second thermoplastic synthetic fiber 16) and polyethylene terephthalate fiber (third thermoplastic synthetic fiber 17), the second thermoplastic synthetic fiber 16 is 50% by weight ( Weight 150g / m 2 ), the third thermoplastic synthetic fiber 17 is 50% by weight (weight 150g / m2 ). That is, the total weight is set to 300g / m 2 .

[0101] (d) The nonwoven fabric layer 15 was produced in a similar manner to Example 1. A product manufactured by UNIX Co., L...

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Abstract

Provided is an automobile body undercover which is durable against scattered foreign objects, such as flying rocks, even when nonwoven fabric is used on a road-side outer surface in order to provide sound-absorbing characteristics with respect to engine noise leaking outside the vehicle or road noise originating from the road surface, for example. The automobile body undercover comprises at least a base material layer (11) of a mixture of fiber-reinforced material and a first thermoplastic synthetic resin (13) and a nonwoven fabric layer (15) of thermoplastic synthetic fibers layered on a road-surface side surface of the base material layer (11), the layers forming a fiber molded body with surface portions of the layers bonded by thermal fusion bonding and having a predetermined shape obtained by compression molding. The first thermoplastic synthetic resin (13) of the base material layer (11) has a melting point melting in a heating step at the time of molding. The nonwoven fabric layer (15) is a mixture of a second thermoplastic synthetic fiber (16) with a melting point melting in the heating step at the time of molding, and a third thermoplastic synthetic fiber (17) with a melting point not melting in the heating step at the time of molding.

Description

technical field [0001] The present invention relates to motor vehicle body undercovers. Background technique [0002] In recent years, an undercover covering the lower surface side of a vehicle is mounted on the lower part of the vehicle in order to suppress the air resistance of the airflow passing through the lower part of the vehicle (see PTL 1). The underbody cover is provided to improve the flow of air flow across the lower surface of the body of the motor vehicle, thereby suppressing the value of air resistance, thereby enhancing fuel efficiency. In addition, the effects of running stability during running, handling stability, and protection of body parts from damage by foreign objects such as flying stones are also achieved. [0003] As an automobile body undercover covering the lower surface side of an automobile that enhances fuel efficiency, running stability, and handling stability due to such aerodynamic characteristics, a resin material using olefin as a main c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08B32B5/00B32B27/02B62D25/20D04H1/542G10K11/16
CPCB32B2605/08B32B27/12B32B5/022B32B27/20B60R13/0861B32B5/08G10K11/168B32B2307/584B32B2307/102B62D25/2072B62D35/02
Inventor 稻垣雄一郎
Owner HOWA TEXTILE IND