公开(公告)号：US3908510A

公开(公告)日：1975-09-30

申请号：US48477074

申请日：1974-07-01

申请人： INTERTHERM

发明人： KOSKOLOS NICK J ,  LEFARTH RALPH R

IPC分类号： B23B45/04 ,  B23C1/20 ,  B23C3/26 ,  B25H1/00

CPC分类号： B23C3/26 ,  B23B45/04 ,  B23C1/20 ,  B25H1/0078 ,  Y10T408/44 ,  Y10T409/306608

摘要： An adjustable depth router is particularly suited for routing openings in ducts beneath register openings in a floor, without use of router bit extensions. A small diameter pneumatic motor, whose casing is mounted at the lower end of an elongated air supply casing of the same diameter, holds the router bit at its lower end; this assembly is vertically adjustable in a router frame. When routing through a floor opening, the base is rested on the floor, the cylindrical assembly projects through the floor opening so the router bit will operate at the desired depth therebeneath; and the bearing of the cylindrical assembly against the edge of its floor opening guides the router. An opening is thus routed parallel to the floor opening and spaced inwardly by the difference between the radius of the casing and the radius of the router bit.

摘要翻译： 可调节深度的路由器特别适用于在楼层的注册开口下面的管道中布置开口，而不使用路由器位扩展。 一个小直径气动马达，其外壳安装在相同直径的细长空气供应外壳的下端，将路由器钻头保持在其下端; 该组件在路由器框架中可垂直调节。 当通过地板开口布置时，基座搁置在地板上，圆柱形组件通过地板开口突出，以便路由器钻头将以其所需的深度运行; 并且圆柱形组件的轴承抵靠其地板开口的边缘引导路由器。 因此，开口平行于地板开口并且通过壳体的半径与路由器钻头的半径之间的差异向内间隔开。