| 摘要 |
Described is a pedal-driven apparatus for forming metallic and non metallic profiles for artistic forging, which is characterised in that it comprises a metallic structure (1,3,6,7,8,9,11,13) with a height adjustable seat (2) occupied by an operator; a mechanism for transmitting motion and power that includes a set of pedals (14) in which axis (15) has a reduced-diameter sprocket (16) for transmitting motion and power to an increased-diameter sprocket (18) through a roller chain (17); a small sprocket (20) fixed to an axis (19) supported by bearings (22) and mounted to a metallic structure (7), wherein the axis (19) also supports and fixs the reduced-diameter sprocket (20), which transmits motion and power to an increased-diameter sprocket (26) through a second roller chain (25); a hollow axis (28) attached by weld or any other means to the sprocket (26) with screws (27) for installing diverse dices (32, 32 a, 51, 59, 67, 72) in order to form spirals, unitary loops, and to bend bars, form spring-type continuous loops, perform simple folds of 0° to 360° respectively; an arm (38) with a square-shaped orifice (39), an axis with a threaded end portion (40) and free-spin rollers (42), said elements sliding over a tubular profile (11); vertical guides (10) and (10a) fixed to a tubular horizontal profile (9) having axis (45) and free-spin rollers (46) with a groove (47) and flanges (48), said arrangement being vertically adjustable in the height thereof by a threaded shaft (49), this latter element supporting a nut (50) welded to a tubular profile (9); a vertical support (54) that includes a square-shaped orifice (55) which is horizontally slidable over a guide (9) which has clamps (56) and (57) attached by winged screws useful for bending unitary bars or bars in arrangements.
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