Lightweight roof for vehicle

Patent metadata

Field	Value
Publication number	US-2016159404-A1
Application number	US-201514668169-A
Country	US
Kind code	A1
Filing date	Mar 25, 2015
Priority date	Dec 4, 2014
Publication date	Jun 9, 2016
Grant date	—

Abstract

A roof for a vehicle is provided that includes a roof frame and a reinforcement frame that is disposed on an upper part of the roof frame, shaped to correspond to an upper surface of the roof frame, and provided with a bush unit formed integrally with a bolting mechanism, respectively, to be connected to the roof frame. In addition, a reinforcement fiber tow is processed to correspond to a shape of the roof frame through the bush unit. A roof panel that is formed as a plate shape to cover the roof frame is disposed at an upper end of the reinforcement frame to be connected thereto.

First claim

1 . A roof for a vehicle, comprising:
a roof frame; a reinforcement frame disposed on an upper part of the roof frame, shaped to correspond to an upper surface of the roof frame, and provided with a bush unit formed integrally with a bolting mechanism, respectively, to be connected to the roof frame, and in which a reinforcement fiber tow is processed to correspond to a shape of the roof frame through the bush unit; and a roof panel formed as a plate shape to cover the roof frame and disposed at an upper end of the reinforcement frame to be connected thereto.

2 . The roof of claim 1 , further comprising:
a plurality of fastening grooves formed along an outer circumference on an upper surface of the roof frame; and a plurality of bush units disposed on the reinforcement frame to correspond to the plurality of fastening grooves of the roof frame, wherein the bolting mechanism is fastened to each respective fastening groove to connect the roof frame and the reinforcement frame.

3 . The roof of claim 1 , further comprising:
a winding groove indented along an outer circumference of the bush unit and formed between an upper end and a lower end of the bush unit, wherein the bolting mechanism passes through from the upper end to the lower end to be connected integrally thereto.

4 . The roof of claim 3 , further comprising:
a plurality of bush units are disposed along an outer circumference of the reinforcement frame to wind the reinforcement fiber tow around the winding grooves of the plurality of bush units to be connected thereto.

5 . The roof of claim 3 , further comprising:
an installation groove formed by an upper surface of the upper end of the bush unit being indented downwardly and formed on the upper end of the bush unit; and an insertion bore penetrated vertically and formed in the installation groove.

6 . The roof of claim 5 , wherein the bolting mechanism includes a head portion, a body portion extended downwardly from the head portion and a nut portion connected to a lower end of the body portion, the head portion is inserted into the installation groove of the bush unit, a lower end of the body portion is exposed to a lower part of the bush unit after the body portion passes through the insertion bore, and the nut portion is connected to the lower part of the body portion.

7 . The roof of claim 6 , further comprising:
a reception groove formed by a lower surface of the lower end of the bush unit being indented upwardly is formed on the lower end of the bush unit and the nut portion is inserted into the reception groove.

8 . The roof claim 1 , wherein the roof panel is made of plastic material and is bonded and fixed to the reinforcement frame using a bonding agent.

9 . The roof of claim 1 , wherein a weather strip is disposed between the roof panel and the reinforcement frame to seal a gap between the roof panel and the reinforcement frame.

10 . The roof of claim 1 , wherein the reinforcement fiber tow is made of reinforcement fiber that includes carbon fiber and glass fiber.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Lee Hae Hoon
• Cho Jeong Min

Classifications

• B62D29/043

  Superstructures (B62D25/161 takes precedence) · CPC title

• B62D29/00

  Superstructures, {understructures, or sub-units thereof,} characterised by the material thereof {(B62D33/044, B62D33/048 take precedence)} · CPC title

• B62D25/06 Primary

  Fixed roofs (non-fixed roofs or like shelters B60J7/00; roof liners B60R13/02; insulating elements B60R13/08) · CPC title

• B62D27/026

  Connections by glue bonding (in general F16B11/00; processes C09J5/00) · CPC title

• B62D27/023

  Assembly of structural joints · CPC title