EP0747243A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Vehicle tyre with dissipation of electrostatic charges
Assignee: Dunlop GmbH and Co KG
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Filing: 1996-06-06
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Granted: —
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Expires: 2016-06-06
Abstract
Abstract A vehicle tyre having a tread strip (2) of electrically insulating or poorly conductive material forming the tyre running surface (1) and a conducting layer (3) of good electrical conductivity arranged beneath the tread strip (2), characterised by a layer (37) of material which conducts electricity well, provided between the two mutually abutting end faces (29,30) of the tread band (38) which is bent into the ring shaped tread strip (2); and in that this layer (37) extends radially outwardly to the ground contacting surface of the tread strip (2) and is electrically connected to the conducting layer (3) beneath the tread strip which is connected to the tyre bead region (13) in a manner which conducts electricity well.
Inventors
- 👤 Manfred Gerresheim
- 👤 Jurgen Schomburg
- 👤 Hubert Leinweber
- 👤 Eduard Ditzel
- 👤 Wilhelm Endres
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 06:37
CPC Classifications
B; B60; B60C; B60C11/00; B60C11/14; B60C11/18; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B60C19/00; B60C19/08; B29D2030/526; B29K; B29K2105/00; B29K2105/0005; B29K2105/0008; B29K2105/002; B29K2105/0023; B29K2995/00; B29K2995/0003; B29K2995/0005
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
A vehicle tyre having a tread strip (2) of electrically insulating or poorly conductive material forming the tyre running surface (1) and a conducting layer (3) of good electrical conductivity arranged beneath the tread strip (2), characterised by a layer (37) of material which conducts electricity well, provided between the two mutually abutting end faces (29,30) of the tread band (38) which is bent into the ring shaped tread strip (2); and in that this layer (37) extends radially outwardly to the ground contacting surface of the tread strip (2) and is electrically connected to the conducting layer (3) beneath the tread strip which is connected to the tyre bead region (13) in a manner which conducts electricity well.
Claim 2
Dependent Claim
53 words
A tyre in accordance with claim 1, characterised by a strip (28) of electrically conducting rubber which is embedded in the tread strip (2) which forms a part of at least one of the two mutually abutting end faces (29,30) of the tread strip (2) so as to be in electrical contact thereto.
Claim 3
Dependent Claim
30 words
A tyre in accordance with claim 2, characterised in that the strip (28) is orientated in the circumferential direction of the tyre and extends along the entire tread strip (2).
Claim 4
Dependent Claim
136 words
A tyre according to claim 2 or 3, characterised in that in the tread strip (2) a plurality of strips (28) are provided of material of good electrical conductivity which form a part of the tyre tread (2) and which are distributed over the tread strip (2) in the circumferential direction of the tyre in such a way that on rolling of the tyre at least one part of a strip (28) is located in the ground contact patch of the tyre; and in that each of these strips (28) is electrically connected to one of the wings (11) or to a tyre side wall (20) via a strip (41) of material which conducts electricity well and which is provided in the tread strip and extends transversely or obliquely to the circumferential direction of the tyre.
Claim 5
Dependent Claim
46 words
A tyre in accordance with claim 4, characterised in that the strip (41) which extends transversely or obliquely to the circumferential direction of the tyre is arranged in the region of a groove section which extends transversely or obliquely to the circumferential direction of the tyre.
Claim 6
Dependent Claim
23 words
A tyre in accordance with any one of claims 2 to 5, characterised in that the strip (28) includes a circumferential groove (31).
Claim 7
Dependent Claim
30 words
A tyre in accordance with any of claims 2 to 6, characterised in that the strip (28) is arranged in the region of the circumferential mid-plane (I) of the tyre.
Claim 8
Dependent Claim
30 words
A tyre in accordance with any of claims 2 to 7, characterised in that the strip (28) has a thickness of about 0.1 to 0.5mm, in particular of about 0.3mm.
Claim 9
Dependent Claim
48 words
A method for the manufacture of a tyre in accordance with claim 1, characterised in that a solution of good electrical conductivity, in particular a rubber solution serving as a bond improver, is applied to at least one of the abutment surfaces (29,30) of the tread strip (2).
Claim 10
Dependent Claim
31 words
A method for the manufacture of a tyre according to claim 9, characterised in that a strip (28) of material of good electrical conductivity is embedded in the tread strip (2).
Claim 11
Dependent Claim
31 words
A method in accordance with claim 9 or 10, characterised in that a rubber solution used in tyre manufacturing as a bond improver serves as the solution of good electrical conductivity.
References Cited (Backward Citations)
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