Patent ID: 6382860
Filing Date: 2002-05-07
Classification: B43K

Abstract:
A safety knock-type writing utensil comprising:an outer shell being of a predetermined shape and having a predetermined length of moving groove formed in a length direction thereof from the upper portion thereof; a clip assembled on the end portion of said outer shell and having a long hook in the length direction of said outer shell at the one side thereof, said hook having a locking projection extruding in the center direction of said outer shell at the end portion thereof; a writing lead inserted into the interior of said outer shell, and having ink stored in the interior thereof and a tip on the end of the one side thereof where writing is conducted; an elastic member installed in the interior of said outer shell, for applying a force in an opposite direction of said tip against said writing lead; a moving member movably inserted in the top portion of said outer shell and having a predetermined length of safety protrusion inserted into the interior of said moving groove in a length direction thereof, said safety protrusion having a fixed projection extruding outwardly to be locked on said locking projection of said clip; a pressing member having a pressing protrusion inserted movably into the interior of said moving member at the lower portion thereof and being contacted with the upper surface of said moving member at the outer peripheral surface of the center portion thereof; and a knock member inserted movably into said moving member, for maintaining an advanced state of said writing lead if said pressing member is pressed once in the state where said fixed projection of said moving member is locked into said locking projection of said clip, and for operating said writing lead in a backward direction by the elastic force of said elastic member if said pressing member is pressed two times.