Impact hammer

An improved abrasion-resistant hydraulic hammer (10) has a low noise level, by preventing the leak-out of internal noise. Such a hammer can contribute to the establishment of a comfortable working environment and meet environmental standards against noise pollution. A cylindrical plastics member (5,...

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Bibliographic Details
Main Author LEE, GUN-JIK
Format Patent
LanguageEnglish
French
German
Published 02.06.1999
Edition6
Subjects
HAND TOOLS
MANIPULATORS
PERCUSSIVE TOOLS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TRANSPORTING
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Summary:An improved abrasion-resistant hydraulic hammer (10) has a low noise level, by preventing the leak-out of internal noise. Such a hammer can contribute to the establishment of a comfortable working environment and meet environmental standards against noise pollution. A cylindrical plastics member (5,30) containing oil is installed in a passage formed in a body (4) under a piston (1) installed within the hydraulic hammer (10), for guiding a circumferential surface of a tool (3).
Bibliography:Application Number: EP19960302554