Granted Patent B2

US 12,466,324 · App. 17/984,844 · Granted Nov 11, 2025

Inventors: Hee Sang Park (Seoul, KR); Won Jong Lee (Suwon-Si, KR); Sang Eun Jahng (Suwon-Si, KR); Yeon Sim Yoon (Yongin-Si, KR); Seung Kun Lee (Suwon-Si, KR); Seok Cheol Kim (Suwon-Si, KR); Dong Han Lee (Sejong-Si, KR); Hak Bong Lee (Cheongju-Si, KR); Eun Gi Kim (Cheongju-Si, KR); Jae Sung Byun (Sejong-Si, KR)

Assignees: Hyundai Motor Company; Kia Corporation; Hanwha Advanced Materials Corporation

B60R5/04B60R9/00

Abstract

Claims (29)

1 . A luggage board for a vehicle, the luggage board comprising:

a core layer;

a first layer covering a portion of the core layer;

a second layer covering a remaining portion of the core layer except for a region covered by the first layer; and

a cover layer disposed to cover at least a portion of the second layer,

wherein end portions of the first layer and the second layer disposed on a side surface of the core layer are bonded to each other,

wherein the end portion of the first layer is bent outwardly forming a step with the second layer,

wherein the first layer disposed on the side surface of the core layer is disposed further inwardly than the second layer disposed on the side surface of the core layer,

wherein an end portion of at least one of the first layer and the second layer is bent,

wherein the end portion of the first layer is disposed to overlap with the end portion of the second layer both horizontally and vertically,

wherein a bonding portion between the first layer and the second layer is disposed on an upper edge side of the core layer,

wherein the core layer has a step portion disposed on an edge portion of a lower surface in the core layer,

wherein an end portion of the cover layer is disposed on the step portion of the core layer, and,

wherein the cover layer is disposed to be rounded while covering the bonding portion between the first layer and the second layer.

2 . The luggage board of claim 1 ,

wherein the first layer includes a first intermediate layer, a first-first layer disposed on a first surface of the first intermediate layer, and a first-second layer disposed on a second surface of the first intermediate layer, and

wherein the second layer includes a second intermediate layer, a second-first layer disposed on a first surface of the second intermediate layer, and a second-second layer disposed on a second surface of the second intermediate layer.

3 . The luggage board of claim 2 ,

wherein the first intermediate layer and the second intermediate layer are formed of a material including a fiberglass material and a polypropylene material, and

wherein the fiberglass is contained in an amount of 20% to 60%.

4 . The luggage board of claim 3 , wherein the fiberglass included in the first intermediate layer and the second intermediate layer is contained in an amount of 30% to 55%.

5 . The luggage board of claim 2 , wherein the first-second layer in contact with the core layer, and the second-first layer include a polypropylene film.

6 . The luggage board of claim 1 , wherein the core layer is formed of a material including one of expanded polystyrene, expanded polypropylene (EPP), and expanded polyolefin (EPO).

7 . The luggage board of claim 2 , wherein the first-first layer is formed of a nonwoven fabric of a polypropylene film or polyethylene terephthalate material.

8 . The luggage board of claim 1 , wherein the cover layer is formed of a non-woven fabric or a woven fabric.

9 . The luggage board of claim 1 ,

wherein the core layer is provided with a protrusion in a region disposed at an edge portion of the core layer,

wherein a protruding width of the protrusion has a length equal to 20% to 40% of a thickness of a center portion of the core layer, and

wherein a protruding height of the protrusion has a length equal to 40% to 60% of the thickness of the center portion of the core layer.

Assignments (2)

Continuity (1)

References Cited (11)