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Roof panel for vehicle

A technology for vehicles and roofs, applied in vehicle components, applications, roofs, etc., can solve the problems of reducing the weight of roofs, difficult to thin walls, etc., and achieve the effects of reducing manufacturing processes, reducing weight, and improving fuel consumption.

Inactive Publication Date: 2008-04-23
WEBASTO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this regard, it is conceivable to reduce the thickness of the first member of the roof panel, but this first member constitutes a part of the outer panel of the vehicle in the state of closing the opening, so rigidity is required that is not easily deformed while the vehicle is running, and the opening is closed. Sound insulation is also necessary in the state, and there is a limit when thinning the wall while satisfying these
Therefore, it is difficult to reduce the weight of the top plate by reducing the thickness of the first member

Method used

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Examples

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Embodiment Construction

[0040] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the description of the following preferred embodiments is merely an example in nature, and the present invention is not intended to limit its application or use.

[0041] FIG. 2 shows a vehicle roof 1 according to an embodiment of the present invention. The roof panel 1 opens and closes a substantially rectangular opening Y formed in a roof R of the vehicle. The roof panel 1 has a glass panel 2 as a first member extending to cover the upper part of the vehicle compartment, a resin molded material 3 as a second member provided around the glass panel 2 , and disposed under the glass panel 2 . The support member 4.

[0042] The glass panel 2 is generally made of a glass material used for a window glass of a vehicle, etc., and has a high rigidity that does not deform while being mounted on the vehicle. In a state where the glass panel 2 is mounted on...

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Abstract

A carbon dioxide gas or a nitrogen gas is dissolved in a polyurethane raw material. By injecting the polyurethane raw material into the cavity of a mold formed in the periphery of a glass panel (2), a resin molded member (3) composed of a polyurethane foam is formed integrally with the glass panel (2). The specific gravity of the resin molded member (3) is set at not less than 0.60 but not more than 0.90 by changing the amount of the carbon dioxide gas or the nitrogen gas dissolved in the polyurethane raw material.

Description

technical field [0001] The present invention relates to a roof panel provided to cover the upper part of a vehicle cabin. Background technique [0002] Conventionally, for example, as disclosed in Patent Document 1, in order to improve comfort in a vehicle interior, etc., an opening is formed in a roof, a top plate is arranged to close the opening, and the opening is opened and closed by the top plate. The top plate of Patent Document 1 has a first member made of a glass panel extending to cover an opening, and a resin second member integrally formed with the first member to surround the first member. [0003] Patent Document 1: Japanese Unexamined Patent Application Publication No. H11-198660 [0004] However, as in Patent Document 1, when the vehicle is provided with a separate roof, an increase in the weight of the vehicle cannot be avoided. In order to reduce the weight increase of the vehicle as much as possible, there is a demand to make the roof panel light. In thi...

Claims

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Application Information

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IPC IPC(8): B60J7/02B60J10/12B29C45/14B29K75/00B29K105/04B29L31/30B60J10/82
CPCB29K2075/00B29C45/14434B60J10/12B60J10/0022B29C44/1271B60J10/235B60J10/82B29C45/14B60J7/02
Inventor 泷岛繁树细田让史
Owner WEBASTO AG
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