Patent ID: 6299432
Filing Date: 2001-10-09
Classification: B29C

Abstract:
A mold for forming an elongate housing of a card edge connector, the housing defining a central slot for receiving a lower edge of an electronic module, a number of contact passageways beside the slot for receiving a number of contacts therein for electrically engaging with the electronic module and two lateral end faces located at opposite ends of the central slot, the mold comprising a gate at one of the lateral end faces of the housing through which molten plastic for forming the housing is injected into a cavity of the mold, and a number of core pins in the cavity for forming the contact passageways, wherein at least a core pin which is nearer to the gate than other core pins has a cross section larger than those of the other core pins for enhancing strength thereof to withstand a high injection pressure of the molten plastic, and comprises a reinforcing portion extending in a longitudinal direction of the cavity whereby the corresponding core pin is strong enough to withstand a fluctuation of a pressure for injecting molten plastic into the mold to form the housing of the connector.