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公开(公告)号：US4581871A
公开(公告)日：1986-04-15
申请号：US571303
申请日：1984-01-16
IPC分类号： B25B21/00 , B25B23/00 , E04F13/04 , F16B5/02 , F16B25/02 , F16B35/04 , E04C5/16 , F16B37/12 , F16B43/02
CPC分类号： F16B35/048 , B25B21/00 , B25B23/00 , E04F13/045 , F16B5/0233
摘要： A fastener and a nosepiece for use in attaching lath to a support. The fastener includes a screw and a spacing element, in which the spacing element is adapted to threadingly penetrate the lath and abut the support. The lath is retained between the spacing element and the head of the screw and is thereby held away from the support in order to allow plaster to properly extrude through openings in the lath. The nosepiece is attachable to a driving tool and has rigid prongs which reach through openings in the lath. Travel of a bit on the driving tool is limited so that automatic disengagement occurs to prevent over-driving of the screw. The prongs ensure that the lath is held a predetermined distance from the support.
摘要翻译： 用于将板条附接到支撑件上的紧固件和鼻梁。 紧固件包括螺钉和间隔元件，其中间隔元件适于螺纹地穿透板条并抵靠支撑件。 板条保持在间隔元件和螺钉的头部之间，从而被保持远离支撑件，以便允许石膏通过板条中的开口适当挤压。 喷嘴可附接到驱动工具，并具有通过板条中的开口延伸的刚性插脚。 驱动工具上的位移有限，从而发生自动脱开以防止螺丝过度驱动。 插脚确保板条与支架保持预定的距离。
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公开(公告)号：US4218795A
公开(公告)日：1980-08-26
申请号：US18382
申请日：1979-03-07
CPC分类号： B25B21/007 , B25F3/00
摘要： A two piece hole-drilling and fastener-driving assembly consists of a three-sectioned drill bit and a three-sectioned drive collar. The drill bit has a fluted drilling section, a hexagonal driving section and a tapered section adapted to be received in a complementarily shape chuck of a rotary hammer. The drive collar has a first hexagonal portion which mates with the hexagonal drill bit section and is driven thereby. A second tubular portion receives the drilling section when the hexagonal portions are engaged. A third portion includes a fastener-engaging recess. This portion may take the form of a removable socket and the collar provided with a spring-biased ball retainer to hold the socket thereon and a second such retainer to hold the collar on the drill bit. The drill bit is inserted in the rotary hammer chuck and a hole is drilled in the workpiece. The drive collar is then slipped over the drill bit and a self-tapping fastener driven into the just-drilled hole.
摘要翻译： 两片钻孔和紧固件驱动组件由三段式钻头和三段式驱动套环组成。 钻头具有槽形钻孔部分，六边形驱动部分和适于容纳在旋转锤的互补形状卡盘中的锥形部分。 驱动套环具有与六边形钻头部分配合并由其驱动的第一六边形部分。 当六边形部分接合时，第二管状部分接收钻孔部分。 第三部分包括紧固件接合凹部。 该部分可以采取可移除的插座的形式，并且设置有弹簧偏压的球保持件以将支座保持在其上的套环以及将该套环保持在钻头上的第二这样的保持器。 将钻头插入旋转锤卡盘中，并在工件上钻出一个孔。 然后将驱动套环滑过钻头，并将自攻式紧固件驱动到刚钻孔中。
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