Abstract: A method for producing a drawn glass member includes a step of thermally softening and drawing a first end of a first glass base material, and a step of thermally bonding together a second end of the first glass base material, having the first end thermally softened and drawn, with one end of a second glass base material to form a thermally bonded portion. The step of thermally bonding together the second end of the first glass base material with the one end of the second glass base material is executed, while pressing, along a direction of the drawing, a side plane of at least one of the first and second glass base materials including the thermally bonding portion so as to keep a cross-sectional shape of at least one of the first and second glass base materials.

Abstract: A producing method for a drawn glass member wherein, in drawing one glass base member, the one glass base member is thermally bonded together with the other glass base material, while forcedly smoothing a side plane along a direction of the drawing of the one or the other glass base material including thermally bonding portion, thereby provided smoothed bonding configuration of the side plane of the glass base members.