Horizontal band sawing machine suited for cutting steel sections like H-shaped steel
AssigneeAmada Company, Limited
InventorsMasao Sato, Hideji Majima
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a construction of a horizontal band sawing machine which is particularly suited for the cutting of materials having at least one web portion and a flange portion, such as L-shaped steel sections. In a horizontal band sawing machine including a housing which is pivotally connected at one end thereof, the construction achieves a structural advantage by involving a plurality of portions where the housing is pivotally connected while a stock vice mechanism is provided to the construction which is capable of holding such a steel material as L-shaped steel not only from the left and right sides thereof, but also from above and below.
Claims2
A band sawing machine of the horizontal type comprising a blade housing (9) pivotally connected to a bed (17) by means of a link member (21), means (29) for downwardly moving said blade housing (9) relative to said bed (17) in a cutting stroke through a cutting station (31), said link member (21) being pivotally connected at one end thereof to said bed (17) by means of a first hinge portion (15) disposed remote from said cutting station (31), said link member (21) being pivotally connected at the other end thereof to said blade housing (9) by means of a second hinge portion (23) disposed relatively closer to said cutting station (31) than said first hinge portion (15), first stop means (25) carried by said blade housing (9) and adapted to engage said link member (21) to limit relative rotation between said link member (21) and said blade housing (9) in one direction about said hinge portion (23), and second stop means (27) carried by said bed (17) and adapted to engage said link member (21) to limit relative rotation between said link member (21) and said bed (17) in one direction about said hinge portion (15) during downward movement of said blade housing (9) in a cutting stroke, whereby said blade housing (9) will rotate about said first hinge portion (15) during the initial stages of a cutting stroke while said link member (21) remains in engagement with said first stop means (25) thereby preventing relative rotation between said link member (21) and said blade housing (9), and said blade housing (9) will then rotate about said second hinge portion (23) during the completion stage of a cutting stroke as said link member (21) comes into engagement with said second stop means (27) thereby preventing relative rotation between said link member (21) and said bed (17).
Dependencies are inferred from the claim text.