Tape joining device

A tape joining device for joining two heat-sealing tapes in alignment with each other by bonding the tapes end to end by fusion like clasped hands and thermally cutting off unnecessary end portions extending from the resulting joint, the device comprising:

• means for holding the two tapes at portions thereof opposed to each other for joining,
• a fixed bearing member disposed at one of opposite sides of the opposed tape portions and having a bearing surface opposed to the opposed tape portions,
• a movable pressing member disposed at the other side of the opposed tape portions and having a pressing face and a thermal blade both opposed to the bearing surface,
• a heater for heating the pressing member, and
• a movable body having attached thereto the pressing member and movable toward or away from the bearing member so as to press the pressing face and the thermal blade against the bearing surface with the opposed tape portions interposed therebetween,
• the device being characterized in that the bearing surface is formed with a tape receiving recess at one side of a blade bearing portion thereof juxtaposed to a pressing face bearing portion thereof, a tape pushing member being so attached to the movable body that one end of the pushing member is movable into or out of the tape receiving recess.