Portable adjustable multiple end drill device

摘要

A portable adjustable multiple end drill device comprises a rotary power source communicating with a plurality of end drill units. The device includes restraints for holding the rotary power source and a hearing rigidly attached to the restraints for rotating the device. The device includes two end-caps, each of which is connected to a respective arm directly or via at least one modular extension of a respective arm. The end-caps are also connected to guide bars and a splined power transmission shaft. The device imparts a set of rectilinearly aligned work areas of a work piece, which work areas are respectively and simultaneously drilled by the respective drill bits. A rectilinear position of each end drill unit can be adjusted mechanically. Each drill bit holder, or base, holding a respective drill bit or fastener bit is rotated by a system of bearing-journaled drive gears.

主权项

1. An end drill device for a rotary power source, comprising:
a main end drill unit communicating with the power source via a first transmission shaft; a plurality of auxiliary end drill units communicating with the main end drill unit via a second transmission shaft; at least one guide bar for holding the main end drill unit and the auxiliary end drill units, wherein a position of each of the auxiliary end drill units relative to the main end drill unit is independently adjustable; and a bearing device for rotating the guide bar, the main end drill unit and the auxiliary end drill units relative to the power source.