Patent ID: 8302821

Claim:
A paste application device for applying a paste stored in a syringe to an application target material comprising: a rotary member disposed with an axis thereof positioned coaxially with an axis of the syringe having a substantially cylindrical shape and to which a paste feeding port provided at a lower end portion of the syringe is detachably connected; a casing portion which holds the rotary member rotatably about the axis, in which a discharge space is formed for a discharge screw portion provided at a lower portion of the rotary member to fit in and which forms a pump mechanism for sending the paste under pressure by causing the discharge screw portion to rotate about the axis within the discharge space, a discharge port provided at an end portion of the casing portion so as to communicate with the discharge space; a paste feeding path which penetrates through the rotary member in an axial direction and which is formed so as to communicate with a paste outlet hole which is provided to open to the paste feeding port and the discharge screw portion for feeding the paste from the syringe to the pump mechanism; an air pressure supplier for feeding the paste within the syringe to the pump mechanism via the paste feeding path by supplying air pressure into an interior of the syringe such that rotation of the syringe about the axis thereof is permitted; and a discharging rotating drive mechanism for actuating the pump mechanism by causing the rotary member to rotate in a predetermined direction relative to the casing portion to thereby actuate the pump mechanism so as to discharge the paste so fed from the discharge port.