EP0061132A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Reinforcing member and its use for reinforcing a panel of an automobile
Assignee: Nissan Motor Co Ltd
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Filing: 1982-03-16
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Granted: —
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Expires: 2002-03-16
Abstract
Abstract A material for reinforcing a panel or plate (6) includes a first resin layer (4) having a high tensile modulus of elasticity after hardening; a second resin layer (5) having a low tensile modulus of elasticity after hardening; an expandable member (3) disposed between the second resin layer side and the panel (6) to be reinforced. The expandable member (3) is narrower than the reinforcing resin sheet (2). The first and second resin layers (4, 5) are combined in a unhardened or semi-hardened state to form a reinforcing resin sheet (2). The expandable member (3) expands into a bead-like projection (2b) when heated and then hardens. The edges (2a) of the reinforcing resin sheet (2) extend beyond the edges of the bead-forming member or expandable member (3) in such a manner that the second resin layer (5) of the reinforcing resin sheet (2) can be attached to the panel or plate (6).
Inventors
- 👤 Yukio C/O Nissan Motor Company Limited Nagata
- 👤 Toshikatu C/O Nissan Motor Company Limited Miura
- 👤 Yukio C/O Nissan Motor Company Limited Okada
- 👤 Eishi Nitto Electric Ind. Company Ltd. Asoshina
- 👤 Takashi Nitto Electric Ind. Co. Ltd. Tominaga
- 👤 Tadahiro Nitto Electric Ind. Co. Ltd. Muguruma
- 👤 Masato C/O Nitto Electric Company Ltd Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 14:12
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B15/00; B32B15/04; B32B15/08; B32B27/38; B32B7/00; B32B7/04; B32B7/12; B60; B60J; B60J5/00; B60J5/04; B60J5/042; B60J5/0422; B60J5/0423; B60J5/043; B60J5/0452; B60J5/0454; B32B2260/00; B32B2260/02; B32B2262/00; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/50; B32B2307/51; B32B2605/00; B32B2605/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24628; Y10T428/24752; Y10T428/24942; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249991; Y10T428/31504; Y10T428/31511
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
156 words
A material for reinforcing a panel or plate, characterized by a first resin layer (4) having a high tensile modulus of elasticity after being hardened; a second resin layer (5) having a low tensile modulus of elasticity after being hardened; the first (4) and second (5) resin layers being combined in the unhardened or semi-hardened state to form a reinforcing resin sheet (2); an expandable member (3) disposed between said second resin layer and the panel to be reinforced; the expandable member (3) being narrower than the reinforcing resin sheet (2); the expandable member (3) being expandable by heating to form and ead-like projection before the first and seccond resin layers (4, 5) harden; the edges (2a) of the reinforcing resin sheet (2) extending beyond the edges of the expandable member (3) in such manner that the second resin layer (5) on the reinforcing resin sheet (2) can be attached to the panel or plate (6).
Claim 2
Dependent Claim
156 words
A material for reinforcing a panel or plate, characterized by a first resin layer (4) having a high tensile modulus of elasticity after being hardened; a second resin layer (5) having a low tensile modulus of elasticity after being hardened; the first (4) and second (5) resin layers being combined in the unhardened or semi-hardened state to form a reinforcing resin sheet (2); an expandable member (3) disposed between said second resin layer and the panel to be reinforced; the expandable member (3) being narrower than the reinforcing resin sheet (2); the expandable member (3) being expandable by heating to form and ead-like projection before the first and seccond resin layers (4, 5) harden; the edges (2a) of the reinforcing resin sheet (2) extending beyond the edges of the expandable member (3) in such manner that the second resin layer (5) on the reinforcing resin sheet (2) can be attached to the panel or plate (6).
Claim 3
Dependent Claim
54 words
The material of claim 1, characterized in that the first resin layer (4) is an epoxy layer having a tensile modulus of elasticity between about 30 and 500 kg/mm 2 after thermosetting, and the second resin layer (5) is an epoxy layer having a tensile modulus of elasticity between about 0.1 and 15 kg/mm'.
Claim 4
Dependent Claim
30 words
The material of claims 1 or 2, characterized in that an auxiliary reinforcing member (7) is embedded in at least one of the first and second resin layers (4, 5).
Claim 5
Dependent Claim
15 words
The material of claim 3, characterized in that the auxiliary reinforcing member (7) is fiberglass.
Claim 6
Dependent Claim
19 words
The material of claim 3, characterized in that the panel (6) is an outer panel of an automobile door.
Claim 7
Dependent Claim
184 words
A reinforced panel, characterized by: a first resin layer (4) having a high tensile modulus of elasticity after being hardened; a second resin layer (5) having a low tensile modulus of elasticity after being hardened; the first (4) and second (5) resin layers being combined to form a laminated reinforcing resin sheet (2); a bead-like projection (26) disposed between the second resin layer (5) and the panel; the bead-like projection (26) being narrower than the reinforcing resin sheet (2); the bead-like projection (2b) being made of an expandable member (3), which upon application of heat first expands and then hardens in its expanded shape; the edges (2a) of the reinforcing resin sheet (2) extending beyond the edges of the expandable member (3) in such a manner that the second resin layer (5) of the reinforcing resin sheet (2) can be attached to the panel (6) ; the reinforcing resin sheet (2) and the bead-like projection (2b) extending from a highly-rigid portion of the panel (6) to another highly-rigid portion thereof a oss a low-rigidity portion so that the low-rigidity portion will be reinforced thereby.
Claim 8
Dependent Claim
184 words
A reinforced panel, characterized by: a first resin layer (4) having a high tensile modulus of elasticity after being hardened; a second resin layer (5) having a low tensile modulus of elasticity after being hardened; the first (4) and second (5) resin layers being combined to form a laminated reinforcing resin sheet (2); a bead-like projection (26) disposed between the second resin layer (5) and the panel; the bead-like projection (26) being narrower than the reinforcing resin sheet (2); the bead-like projection (2b) being made of an expandable member (3), which upon application of heat first expands and then hardens in its expanded shape; the edges (2a) of the reinforcing resin sheet (2) extending beyond the edges of the expandable member (3) in such a manner that the second resin layer (5) of the reinforcing resin sheet (2) can be attached to the panel (6) ; the reinforcing resin sheet (2) and the bead-like projection (2b) extending from a highly-rigid portion of the panel (6) to another highly-rigid portion thereof a oss a low-rigidity portion so that the low-rigidity portion will be reinforced thereby.
Claim 9
Dependent Claim
60 words
The reinforced panel of claim 6, characterized in that tne first resin layer ( 4 ) is an epoxy resin layer naving a tensile modulus of elasticity between about 30 and 500 kgjmm2 after thermosetting, and the second resin layer (5) is an epoxy resin layer having a tensile modulus of elasticity between about 0.1 and 15 kg/mm 2 .
Claim 10
Dependent Claim
30 words
The reinforced panel of claims 6 or 7, characterized in that an auxiliary reinforcing member (7) is embedded in at least one of the first and second resin layers (4,5).
Claim 11
Dependent Claim
17 words
The reinforced panel of claim 8, characterized in that the auxiliary reinforcing member (7) is glass fiber.
Claim 12
Dependent Claim
20 words
The reinforced panel of claim 8, characterized in that the panel (6) is the outer panel of an automobile door.
Claim 13
Dependent Claim
18 words
The reinforced panel of claim 1, characterized in that the expandable member (3) is a foamable resin strip.
References Cited (Backward Citations)
No citation records indexed.
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