Multi-mode drill with mode collar

Details Multi-mode drill with mode collar Multi-mode drill with mode collar

2011-08-02

2011-08-02

Nash, Brian D (Department: 3721)

Tool driving or impacting

Drive adjustable to completely change kind of drive

Adjustable to impacting device

C173S104000, C173S047000, C173S092000, C173S117000, C173S122000

Reexamination Certificate

active

07987920

ABSTRACT:
A drill includes a housing and a motor coupled to an output member by a transmission. The transmission can selectively couple the output member to an output spindle through a low speed output gear or a high speed output gear for rotating the output spindle at a first speed or a second speed, respectively. Alternatively or additionally, a low speed mode can be provided by actuating an electronic switch that limits the speed of the motor. A rotatably fixed hammer member and a rotatable hammer member can be mounted around the output spindle. A mode collar can be rotatably mounted on the housing and around the output member for movement to positions that correspond to various mode of operation, including a low speed mode, a high speed mode, and a hammer-drilling mode. In the hammer-drilling mode, the transmission operates in the high speed mode.

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