Spring heat treating furnace
AssigneesKabushiki Kaisha Asada, Coil Master Kogyo Kabushiki Kaisha
InventorKazumi Kaji
Life of this patent
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Abstract
A spring heat treating furnace in which untreated springs are charged through a charging port in the body thereof, the springs being heat-treated while being conveyed along a conveyance passageway inside the body. The heat-treated springs are discharged from a discharge port in the furnace body, said conveyance passageway being formed into a spiral passageway capable of arranging said springs in the direction of conveyance. A passageway vibrating device is disposed at the lower portion of said conveyance passageway for vibrating the passageway to convey the springs in a discharging direction.
Claims10
A spring heat treating furnace defining a charge port and a discharge port and comprised of:
- heating means;
- disk-like conveyance means associated with said heating means and defining in a plane a spiral conveyance passageway having a starting end near the center of said passageway and a terminal end at the outermost periphery of said passageway said ends being located generally in the same plane as said passageway, said passageway being associated with said charging port and said discharging port;
- and
- vibrating means for vibrating said passageway, such that untreated springs pass through said charge port to said passageway and are vibrated in a plane along the spiral of said passageway to said discharge port.
Dependencies are inferred from the claim text.