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1. WO1998035820 - MOULDED PARTS FOR TRANSMISSIONS

Publication Number WO/1998/035820
Publication Date 20.08.1998
International Application No. PCT/GB1998/000336
International Filing Date 13.02.1998
IPC
B29C 45/16 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
F16H 55/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02Toothed members; Worms
06Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
CPC
B29C 45/1642
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
45Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
16Making multilayered or multicoloured articles
1642having a "sandwich" structure
B29K 2105/16
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
2105Condition, form or state of moulded material ; or of the material to be shaped
06containing reinforcements, fillers or inserts
16Fillers
F16H 55/06
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
HGEARING
55Elements with teeth or friction surfaces for conveying motion; Worms; Pulleys; Sheaves
02Toothed members; Worms
06Use of materials; Use of treatments of toothed members or worms to affect their intrinsic material properties
Applicants
  • CTP DAVALL LIMITED [GB]/[GB] (UsOnly)
  • THE UNIVERSITY OF BIRMINGHAM [GB]/[GB] (UsOnly)
  • DuGARD, Frederick, Jeremy [GB]/[GB] (UsOnly)
  • DUKE, Brian, Robert [GB]/[GB] (UsOnly)
  • WALTON, Douglas [GB]/[GB] (UsOnly)
Inventors
  • DuGARD, Frederick, Jeremy
  • DUKE, Brian, Robert
  • WALTON, Douglas
Agents
  • THOMSON, Roger, Bruce
Priority Data
9702918.513.02.1997GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MOULDED PARTS FOR TRANSMISSIONS
(FR) PARTIES MOULEES POUR TRANSMISSIONS
Abstract
(EN)
A two-part moulding for use as a gear, cam or pulley in a transmission system comprises a core made of a reinforced polymer, e.g. nylon or acetal, for strength, and an outer skin of a polymeric plastics material which has good tribological properties but is also a mechanical load-bearing material. The skin may be unalloyed nylon or acetal, or may include PTFE and/or silicone and/or molybdenum disulphide.
(FR)
Moulage en deux parties destiné à servir d'engrenage, came ou poulie dans un système de transmission comprenant un noyau constitué d'un polymère renforcé, tel que le nylon ou l'acétal, pour assurer une bonne résistance, et une pellicule externe en plastique polymère lequel présente de bonnes propriétés tribologiques, et est également un matériau résistant aux charges mécaniques. La pellicule peut être constituée d'un nylon ou acétal pur, ou contenir un produit PTFE et/ou de la silicone et/ou du bisulfure de molybdène.
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