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2023
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Invention
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Hydraulic hammering device. This hydraulic hammer device is provided with a dual damper having: a... |
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2021
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Invention
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Hydraulic hammering device. A hydraulic hammering device enables an auto-stroke mode and an idle ... |
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2020
|
Invention
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Timbering pitching device and timbering pitching method using same. Provided are a timbering pitc... |
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Invention
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Drill tool and method for producing same.
A drill tool capable of coping with a rock drill havin... |
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Invention
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Drill tool and method for producing same. Provided is a drill tool suitable for a high output roc... |
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2018
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Invention
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Hydraulic hammering device. Provided is a hydraulic hammering device with which it is possible to... |
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Invention
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Hydraulic hammering device. A hydraulic hammering device includes a piston front chamber and a pi... |
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Invention
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Hydraulic hammering device. The present invention increases a hammer output by setting piston str... |
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2017
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Invention
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Hydraulic striking device. Provided is a hydraulic striking device in which a reverse operation c... |
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Invention
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Hydraulic striking device. The purpose of the invention is to provide a hydraulic striking device... |
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Invention
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Two-piston hydraulic striking device. Provided is a two-piston hydraulic striking device that has... |
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2016
|
Invention
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Hydraulic hammering device. A hydraulic hammering device is capable of sufficiently transmitting ... |
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Invention
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Hydraulic hammering device. Provided is a hydraulic hammering device that is capable of sufficien... |
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Invention
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Hydraulic hammering device. Hammering power of a hydraulic hammering device is improved by shorte... |
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Invention
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Hydraulic hammering device. The present invention increases a hammer output by setting a piston s... |
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2015
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Invention
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Hydraulic hammering device. Provided is a hydraulic hammering device having improved hammering ef... |
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Invention
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Hydraulic hammering device. A hydraulic hammering device that uses a scheme in which a front cham... |
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Invention
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Hydraulic hammering device. Provided is a hydraulic hammering device which has improved hammering... |
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Invention
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Hydraulic hammering device. A hydraulic hammering device which uses a scheme in which a front cha... |
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2014
|
Invention
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Drilling device and unload control program. A drilling device with improved fuel efficiency, redu... |
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Invention
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Drilling device and automatic throttle control program. A drilling device is brought into an idli... |
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Invention
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Drilling device and automatic throttle control program. Provided is a drilling device with improv... |
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Invention
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Drilling device and unload control program. Provided is a drilling device with improved fuel effi... |
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2009
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P/S
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Mining machines and apparatus, namely, rock drills, mine borers, tunnel boring machines, earth mo... |
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P/S
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Mining machines and apparatus; construction machines and
apparatus; loading-unloading machines a... |
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P/S
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Mining machines and apparatus, namely, rock drills, mine borers, tunnel boring machines, [ earth ... |
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2006
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Invention
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Drill rod, drill bit, and drilling tool. A drill rod has a fitting portion protruding toward the ... |
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Invention
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Drill rod, drill bit, and drilling tool. A drill rod having a fitting portion protruding toward t... |
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Invention
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Cutting rod, cutting bit and cutting tool. A cutting rod comprising a mounting unit (2) protrudin... |
