HYDRAULIC SHOVEL
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United States of America Patent
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N/A
Issued Date -
Feb 11, 2010
app pub date -
Apr 9, 2008
filing date -
Apr 17, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hydraulic shovel (1) in which a vehicle body (2) is provided revolvably on a traveling body (6) includes a boom (3) connected rotatably to the vehicle body (2), an arm (4) connected rotatably to the boom (3), a bucket (5) connected rotatably to the arm (4), a boom hydraulic cylinder (10) that drives the boom (3), an arm hydraulic cylinder (9) that drives the arm (4), a bucket hydraulic cylinder (8) that drives the bucket (5), and a boom control valve (15), an arm control valve (35) and a bucket control valve (45) which respectively control a flow of a working oil supplied to and discharged from the respective hydraulic cylinders (8, 9, 10), wherein the boom (3) is formed to be hollow, and the bucket control valve (45) is disposed in an interior of the boom (3).
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