Patent ID: 6854909
Filing Date: 2005-02-15
Classification: B43K

Abstract:
1. A lead propelling device comprising: a lead gripping means for gripping and releasing the lead, said lead gripping means being switchable between a lead-gripping state and a lead-releasing state, said lead gripping means being movable between an advanced position and retracted position; a stopper means for abutting against the lead to prevent the lead from advancing via gravity when said lead gripping means is in a lead releasing state, but allowing passage of the lead during a knock backward operation; a knock operation means for receiving and transmitting a knocking force to said lead gripping means, said knock operation means being switchable between a neutral operation, a knock forward operation and a knock backward operation, said knock operation means transmitting a knocking force to said lead gripping means during a knock forward operation, which causes said lead gripping means to switch to a lead-releasing state and to move to an advanced position; and said knock operation means not transmitting a knocking force to said lead gripping means during said knock backward operation, which allows said lead gripping means to return to a lead-gripping state and to return to its retracted position.