Impact drill

An impact drill includes a first ratchet rotating along with a spindle and movable in an axial direction, a second ratchet engaged with the first ratchet and movable in a axial direction but unrotatable, and a spring provided between the second ratchet and a partial member of a housing. An amount of...

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Bibliographic Details
Main Authors OHTSU SHINKI, WATANABE HIDEKI, SAITO TAKUMA, TOUKAIRIN JUNICHI
Format Patent
LanguageEnglish
Published 11.07.2006
Subjects
BORING
COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR
DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HAND TOOLS
HYDRAULIC ENGINEERING
MACHINE TOOLS
MANIPULATORS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERCUSSIVE TOOLS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
SOIL SHIFTING
TRANSPORTING
TURNING
UNDERGROUND OR UNDERWATER STRUCTURES
WORKING CEMENT, CLAY, OR STONE
WORKING STONE OR STONE-LIKE MATERIALS
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Summary:An impact drill includes a first ratchet rotating along with a spindle and movable in an axial direction, a second ratchet engaged with the first ratchet and movable in a axial direction but unrotatable, and a spring provided between the second ratchet and a partial member of a housing. An amount of movement of the spindle in the axial direction is regulated, so that the pressing force is too excessive, the restoring force of the spring urging the second ratchet is controlled to maintain a state of generating a set stroke force.
Bibliography:Application Number: US20050070163