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    • 11. 发明公开
    • APPARATUS FOR PUNCHING STEEL STUDS
    • 用于冲压钢制螺柱的设备
    • EP1064124A1
    • 2001-01-03
    • EP99907049.3
    • 1999-02-16
    • RYOBI NORTH AMERICA, INC.
    • BRAZELL, Kenneth, M.EMAZI, John, E.TAKAMURA, AkioFUKINUKI, MasatoshiDILS, Jeffrey, M.EVERTS, Robert, G.
    • B26D5/08B26D5/16B26F1/14
    • B21D28/243Y10T83/822Y10T83/8788Y10T83/8821Y10T83/8843Y10T83/9428
    • An apparatus for punching knock-outs out of light gauge steel framing studs used in building construction to form holes of sufficient size to allow building wiring and piping to extend therethrough includes a compact hand held frame (12) having a generally C-shaped frame portion (14). The C-shaped frame portion has spaced apart ends (16, 18) located along a working axis (20) for receiving a stud (30) therebetween. A punch and die assembly (24) includes a punch (26) and a die (28) mounted opposite each other at the ends of the C-shaped frame portion. An actuatable driving mechanism (36) mounted to the frame is operable to drive the punch and die assembly over a working stroke range between a deactuated position (52) and an actuated position (54). In the actuated position, the punch extends into the die by punching through the stud to produce a knock-out (342).
    • 一种用于在建筑结构中使用的轻型钢框架螺栓的冲孔装置以形成足够尺寸以允许建筑物布线和管道延伸穿过其中的设备包括紧凑的手持框架(12),该框架具有大致C形的框架部分 (14)。 C形框架部分具有沿着工作轴线(20)定位的间隔开的端部(16,18),用于在其间接收立柱(30)。 冲头和模具组件(24)包括冲头(26)和在C形框架部分的端部彼此相对安装的冲模(28)。 安装在框架上的可致动的驱动机构(36)可操作以在非致动位置(52)和致动位置(54)之间的工作冲程范围内驱动冲头和冲模组件。 在致动位置,冲头通过穿过螺栓冲孔而延伸到模具中以产生脱模(342)。