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Matches 151 - 200 out of 587

Document Document Title
JP2024007877A
An object of the present invention is to provide a double drill head that is equipped with a percussion drill head and a rotary drive, can use driving force efficiently, and has a compact and lightweight structure. [Solution] A hammer su...  
JP7404147B2
To provide a swivel joint in which the function of transferring a fluid and the function of a transmission line for transferring an electric signal or electric power are integrated.The present invention comprises: a cylindrical housing w...  
JP7385975B1
To provide an excavation system and an excavation method capable of efficiently excavating vertical holes in hard ground by further improving workability. Insertion guides 12G are protruded below the sleeve body 12 at intervals in the ci...  
JP2023165623A
To provide an impact piston device.An impact piston device for an impact drill drive is an impact piston movably implemented in a piston housing so as to reversible between a front hitting position and a back retracting position and havi...  
JP2023543851A
An impact drill bit comprising a sleeve section and a bit section having a longitudinal axis, the sleeve section having an axial end at an opposite end of the drill bit compared to the bit section; A generally conically shaped internal c...  
JP2023153058A
Provided are a scraper, a rock drill unit, and a cleaning method of a feed beam of the rock drill unit. A scraper (11) comprises a scraper element (12), and a bracket (13) attachable to a feed beam (3). The bracket supports the scraper e...  
JP7324080B2
A noise dampening device (12) for a rock drilling rig comprise a skin structure (14) and a frame (20) to be attached to the feed beam of the drilling rig. The skin structure comprises several noise dampening panels (13) which are mounted...  
JP7305482B2
A rock breaking device (8) and a method of monitoring a condition of a tool (9) of a rock breaking device (8). The rock breaking device comprises a frame (8'), a tool (9), a device (5) for generating stress waves in the tool (9), measuri...  
JP2023529438A
The present invention relates to a computer-implemented diagnostic method and system for diagnosing the functionality of at least one accumulator in a hydraulic circuit in an impact rock drilling rig. The hydraulic circuit provides hydra...  
JP2023077692A
To provide an attachment type drilling device capable of eliminating modification of a work vehicle as much as possible.This attachment type drilling device 100 has a mounting bracket 110 mounted on a tip of an arm of a work vehicle, a c...  
JP7260151B2
To provide a small-sized and light-weight drilling force generation apparatus.A drilling force generation apparatus 4 configuring a drilling machine 1 for civil engineering work includes an output shaft 15, a motor 16 that rotatably driv...  
JP7237664B2
To provide a drilling rod applicable in a case of drilling the ground in a tip strike method and allowing an application as an electric cable.A drilling rod provided with a drilling bit and a vibration generating mechanism generating str...  
JP7235843B2
The invention relates to a drill drive device (10) for an earth drilling apparatus with a spindle arrangement which has an inner spindle unit (20) and an outer spindle unit (40) that is supported in an axially displaceable manner on the ...  
JP7222739B2
To provide a remote control device for a drilling machine capable of being comfortably operated while improving working efficiency.A remote control device 10 comprises: an operation portion 21 including a plurality of selecting switches ...  
JP2022190486A
To obtain a method for estimating the compressive strength of natural ground capable of estimating the compressive strength of natural ground with high accuracy.A rock drill 10 equipped with a striking rod 15 that applies a striking forc...  
JP2022189397A
To provide a water stop jig for a rotary percussion drill device capable of suppressing the flow of water at a predetermined position inside a drill tube or inside an outer tube even if the water contained in the soil suddenly flows in t...  
JP7165403B2
To provide a drilling device that has a simple structure and can be constructed at low cost.A drilling device comprises a casing shoe 3 provided at the tip of a casing pipe 2, and a bit device 4 inserted into the casing pipe 2 and having...  
JP2022166824A
To limit the risk of intrusion of injection fluid into a rear part of a shank and the inside of a hammer drill which receives a striking piston of the hammer drill.A hydraulic rotary impact hammer drill comprises a fluid injector includi...  
JP2022139809A
To provide a drilling system capable of automatically drilling in a concrete structure.The drilling system includes: a drilling condition storage unit PCm1 that stores drilling conditions including the drilling position and the drilling ...  
JP2022139811A
To provide a drilling system capable of automatically drilling in a concrete structure.The drilling system includes: an input/output unit PC for inputting a drilling condition sheet Sh for setting drilling conditions concerning multiple ...  
JP2022139813A
To provide a drilling device that is equipped with a simple reaction force receiving portion.A drilling device comprises a body frame 10 having a rectangular parallelepiped shape with an open front surface, a lifting frame 20 provided to...  
JP2022139810A
To provide a drilling system capable of automatically drilling in a concrete structure.The drilling system includes: an input/output unit PC for inputting multiple drilling conditions sheets Sh in which drilling conditions for multiple h...  
JP2022133251A
To provide a hydraulic rotation impact drill having a simple economical structure, improved in reliability, and not needing an additional external component.This hydraulic rotation impact drill comprises: a body (3); a shank (21); a stri...  
JP2022133250A
To provide a hydraulic hammer drill which has a simple and economical structure, and simultaneously, has improved performance.A hydraulic rotary impact hammer drill comprises: a body; a shank 15; an impact piston 5 which is so configured...  
JP7071797B2
To provide a method and a work vehicle for drilling a hole for a rock bolt, which enable the hole for the rock bolt to be drilled without a collapse of a peripheral wall of the hole drilled in a slope face.A method for drilling a hole fo...  
JP7041575B2
To provide a construction method of an underground structure capable of constructing timbering of an earth retaining wall and an underground supporting body for improving a base ground, while simultaneously excavating in the earth retain...  
JP6977934B2
To provide a method capable of driving a pipe smoothly and straight into the ground.In a method for driving a pipe 1 having a tip bit 2 at a tip thereof into the ground, the pipe 1 is driven into the ground in a manner that inserts a dri...  
JP3234002U
To provide a casing for an excavator and an excavator capable of suppressing damage such as bending of a screw portion during transportation or storage and reducing consumption of a fluid pushing up soil discharged from an excavation hol...  
JP6920008B2
A hybrid bit includes an earth-boring element and a percussion element. The earth-boring element and the percussion element are coaxially arranged, with the earth-boring element surrounding the percussion element. A reciprocating member ...  
JP6889823B2
The present invention relates to an air cylinder which operates by a pneumatic pressure, a piston which moves up and down in the interior of the air cylinder, and an air hammer bit which is coupled to the piston and crushes a reinforced ...  
JP6847899B2
To provide a ring-shaped front end fitting that uses a down-the-hole hammer which has an established reputation for an ability to excavate hard ground or rocks incapable of being excavated by an earth auger method when driving piles into...  
JP6831706B2
To provide a boring machine: capable of achieving drilling operations by both rotation and percussion when bits connected on the distal end of the boring machine is stricken on gravel, hard rock, and so on; and also adaptable for drillin...  
JP2020176749A
To provide a pumping-combined heat exchanger which reduces construction cost and also reduces an installation area by sharing excavation work for installing a pumping well and excavation work for installing a heat exchange pipe.When an e...  
JP2020076298A
To provide a new and improved rock drill capable of supplying a grouting material to a drilled hole.It is a method of reinforcing a rock surface using a rock drill 6, a rock drilling rig, and a grouting material. Through the rock drill, ...  
JP2020026708A
To provide a steel pipe for an inner excavation pile construction method that can prevent excavated earth from adhering or stopping on shear keys when providing the shear keys protruding in an axial center perpendicular direction on a ho...  
JP6621671B2  
JP2019138091A
To provide a burying device and a burying method for an environmentally friendly pipe anchor in which working on a pipe anchor can be done at a minimum limit and that can provide for sufficient propulsive force toward underground without...  
JP2019132031A
To provide a casing for a drilling rig, and the drilling rig, allowing damage such as bending of a screw section during transportation or storage to be prevented and consumption of liquid needed to raise earth removal from a drilling hol...  
JP6544724B2  
JP6546245B2  
JP2019070277A
To provide a double tube drilling device which can be minimized a loss of kinetic energy at the time of drilling and which can be driven by pressurized air, minimizing the physical burden on workers when transporting or installing equipm...  
JP2019035267A
To provide a drilling tool and drilling method capable of drilling the subsoil cheaper than the case of using to a drilling bit to whose tip end a plurality of cemented carbide chips are connected.A drilling tool 1 can be mounted on a dr...  
JP6429201B2  
JP6408795B2  
JP6348753B2  
JP6325048B2  
JP6307002B2  
JP6302021B2
The invention relates to an apparatus, rock drilling rig and method for rock drilling. The apparatus comprises a turning device (TD) for moving a drilling tool (8) around longitudinal axis of the tool. The turning movement (T) is control...  
JP6272968B2
The invention relates to an arrangement in a rock drilling machine and to a method of mounting the same. The rock drilling machine (4) comprises a gear module (13) and a percussion module (15), which are arranged on a same axial line (17...  
JP2017193933A
To provide a small-sized and weight-reduced core drill for excavation, which can be utilized even in a small space during improvement and reinforcement work for railroad ground, a slope or a retaining wall, which can also be used for det...  

Matches 151 - 200 out of 587