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AssigneeYoshida Kogyo K.K.
InventorsKiyomitsu Matsushima, Katsuyuki Nagata
Estimating the term…
A method for working terminal parts of materials subjected to vertical suspension type surface treatment thereby forming in the terminal parts such hook engaging parts as to be engaged with nipping devices of a carrier bar serving to convey the materials successively to a series of surface-treating baths is disclosed. This method is characterized in that the formation of the hook engaging part in the terminal part of the material is carried out at the same time that or after the step of cutting an extruded material into a fixed length is performed. The hook engaging part may be a groove, notch or hole formed in the terminal part of the fixed-length material and may be formed by a cutting or pressing work. In another embodiment, a protuberant hook engaging part is formed by welding on the surface of the terminal part of the fixed-length material while the material is in transit to a inspection table.
In a method for working a terminal part of a fixed length of material subjected to vertical suspension type surface treatment by extruding an elongated member, cutting the elongated member into a fixed length of material with a terminal part and forming in said terminal part a hook engaging part to be engaged with a nipping device of a carrier bar serving to convey said fixed length of material successively to a series of surface-treating baths, the improvement comprising carrying out the step of forming said hook engaging part in said terminal part of the material at the same time as performing the step of cutting the elongated member into a fixed length of material.
In a method for working a terminal part of a member subjected to vertical suspension type surface treatment by forming in said terminal part a hook engaging part to be engaged with a nipping device of a carrier bar serving to convey said member successively to a series of surface-treating baths, the improvement comprising providing a cutting machine comprising a cutting saw of a large diameter and a notch-forming saw of a small diameter both adapted to be parallely and integrally rotated, and utilizing said cutting machine for cutting an extruded material into a member of a fixed length and, at the same time, forming a notch in the member of a fixed length at a prescribed distance from an end of the member to form said hook engaging part.
In a method for working a terminal part of a member subjected to vertical suspension type surface treatment by forming in said terminal part a hook engaging part to be engaged with a nipping device of a carrier bar serving to convey said member successively to a series of surface-treating baths, the improvement comprising cutting an extruded material into a member of a fixed length by shearing and, at the same time, forming the hook engaging part having a shape selected from a groove and hole in the terminal part of said member by the work of grooving and boring.
Dependencies are inferred from the claim text.