Loudspeaker cone and surround assembly

(19)

(11)

EP 0 492 914 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	21.10.1992 Bulletin 1992/43

(43)	Date of publication A2:
	01.07.1992 Bulletin 1992/27

(21)	Application number: 91311619.0

(22)	Date of filing: 13.12.1991

(51)	International Patent Classification (IPC)⁵: H04R 7/20, H04R 31/00, H04R 7/12

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE

(30)

Priority:

20.12.1990 GB 9027670
12.03.1991 GB 9105149
27.09.1991 GB 9120591

(71)	Applicants:
	Leach, Patrick Arthur Huntingdon, Cambridgeshire PE18 6EB (GB) Leach, David Ian Huntingdon, Cambridgeshire PE18 6EB (GB) TGI plc Havant, Hampshire PO9 1JS (GB)

(72)	Inventors:
	Leach, Patrick Arthur, T.T. Plastics Huntingdon, Cambridgeshire, PE18 6EB (GB) Leach, David Ian, T.T. Plastics Huntingdon, Cambridgeshire, PE18 6EB (GB) Collinson, Marshall, Terence Robin Nigel Horndean, Hamphsire, P08 9JU (GB)

(74)	Representative: Maguire, Peter Albert et al
	Maguire & Co. 5 Crown Street St. Ives, Cambridgeshire PE17 4EB St. Ives, Cambridgeshire PE17 4EB (GB)

(56)

References cited: :

(54)	Loudspeaker cone and surround assembly

(57) A method of making a loudspeaker cone and flexible surround assembly (1,2) comprising arranging an injection moulded plastics cone (1) in the mould cavity of an injection moulding apparatus and injection moulding an elastomeric material onto the periphery of the cone under heat and pressure to form a surround or suspension (2) which is chemically bonded to the material of the cone.
The invention is also a loudspeaker cone and surround assembly wherein the surround (2) is an injection moulding formed directly on to the cone (1).

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