Vehicular interior material and seat back panel
AssigneeKotobukiya Fronte Co., Ltd.
InventorKazuki Fukui
Life of this patent
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Abstract
This vehicular interior finishing material has a layered structure including n layers (where n is a natural number equal to or greater than 2), and at least includes a substrate that is a first layer and a skin layer that is an nth layer. The vehicular interior finishing material is configured such that formula (1) is satisfied, where di (mm) is the thickness of an i-th layer, Ei (MPa) is the Young's modulus, and ρ (g/cm3) is the density of the entire vehicular interior finishing material. In addition, this seat back panel is formed using the vehicular interior finishing material. 94 < ∑ i = 1 n ( E i × d i ) 2 < 1000 × ( ∑ i = 1 n d i ) × ρ ( 1 )
Claims19
A vehicle interior material which has a laminated structure of n layers (where, n is a natural number of 2 or more), the vehicle interior material comprising:
- at least,
- a base material which is a first layer and which is formed of felt, foamed resin, or a hollow structure of resin;
- and
- a cover layer which is an n-th layer, wherein,
- the vehicle interior material is configured to satisfy a relationship of Formula (1):
- 94
- <
- ∑
- i
- =
- 1
- n
- (
- Ei
- ×
- di
- )
- 2
- <
- 1000
- ×
- (
- ∑
- i
- =
- 1
- n
- di
- )
- ×
- ρ
- (
- 1
- )
- where, among the first to the n-th layers, the thickness of an i-th layer is di (mm), the Young's modulus of the i-th layer is Ei (MPa), and the density of whole of the vehicle interior material is ρ (g/cm3).
Dependencies are inferred from the claim text.