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Patent Searching and Data


Matches 651 - 700 out of 2,015

Document Document Title
JP11093558A
To make load for each cutter part the most suitable, discharge drill cuttings and improve performance of a drill tool by making the main cutter and the auxiliary cutter of a drill head specific shapes. A rock drill 1 mounted on a rotatio...  
JP2876181B2  
JP11081848A
To install a frame more easily on a guide rail. To a frame 10 in which an auger drive mechanism is incorporated, a sheave block 36 on which a suspension sheave 20 is rotatably supported is detachably connected to be rotatable around a su...  
JP2870942B2  
JP2870943B2  
JP11071984A
To obtain a sound proof structure capable of being mounted and dismounted with ease, and also installed on a ready-made machine by closely fitting detachably a cylindrical vibration attenuating member comprising a high hysteresis elastic...  
JP2867232B2  
JPH1162454A
To heighten connecting strength and cope with unequal settlement of an outrigger and the relative position change of a tubing device and a base machine during excavating work by connecting the tubing device and the base machine with four...  
JPH1151690A
To sustain the accuracy of inclination angle of a tilting body without requiring a highly accurate control technology or a precise machining technology by applying an external force for turning around a pivot to the inclining body and tr...  
JP2859816B2  
JPH1127789A
To lower the minimum resonance frequency, to make a diaphragm body highly stiff and to reproduce sounds with low distortion over a broadband by constituting a resin film that integrally forms a body and an edge part of its circumference ...  
JPH1113377A
To obtain such a pile driver as a steady rest platform is not made to interfere with the rising and falling of an auger screw. A steady rest platform for stopping vibration of an auger screw is borne on a leader in a liftable manner, at ...  
JP2846148B2  
JP2836809B2  
JP2832452B2  
JPH10317871A
To drill slits smoothly and efficiently while giving uniform revolving torque and striking force to all juxtaposed rods in a drilling machine, in which a plurality of the rods, in which drilling bits are protruded at front ends, are juxt...  
JPH10317868A
To prevent an interference in a bracing base at the time of excavation and extraction. A kelly-bar 26 is suspended from a main wire 14 from a main winch 12 loaded on a construction equipment body 1, and an excavating tool 28 is installed...  
JPH10317865A
To excavate a pit having high accuracy by sufficiently utilizing the original excavation capacity of a pit excavator regarding the pit excavator excavating a vertical shaft having comparatively large pit diameter and depth to a ground. T...  
JP2829525B2  
JPH10311193A
To make it possible to control operation mechanism of a drill in succession. A drill controlling device is equipped with a detection device 18 for detecting an operation condition of an operation mechanism in a drill mounted on a guide s...  
JPH10311192A
To make it possible to surely and easily carry out inspection work for an automatic drill without using any instruction book. An automatic drill is equipped with a detection device 18 for detecting a working condition of an operating sec...  
JP2827020B2  
JP2585165Y2  
JP2822683B2  
JP2816749B2  
JPH10280852A
To obtain an auger driving device by which large turning force can be transmitted. A chuck mechanism 72 for grasping an auger drill is formed by a wedge member 54 inserted between an inclined surface 52 formed on a ring member 50 integra...  
JPH10510601A  
JPH10266758A
To improve the effect of cut-off and work efficiency. An intervening member 3 having a projection 3a mounting to a specific position of an excavated hole member formed by connecting a plurality of unit excavated hole members is connected...  
JPH10266754A
To increase crushing force, and to drill all kinds of rock faces containing the hard rock face by obliquely disposing a bit body at the end section of a sonde housing and installing a plurality of end studs to the bit body. The rotation ...  
JPH10266753A
To carry out drilling in the horizontal direction of all kinds of rock facies containing hard rock faces by intermittently rotating a drill bit on a random orbit so as to be stopped until a drill bit installed at one tip of a drill strin...  
JPH10266764A
To obtain a crushing device for crushing a hard subsoil with light vibration and light noises by means of a drill and the crushing device. A crushing device is so constituted that a drill shaft 5 is extended from a drill driving source 4...  
JPH10266257A
To synchronously turn an auger driving device and a lower swing preventive device by hydraulic circuits having the simple constitution. An auger driving device arranged in a leader of a pile driver so as to be ascendable/descendable, is ...  
JPH10266206A
To press-in a casing into the ground, in a closest possible position to a site boundary by bringing a crawler of a working machine into contact with a reaction receiving part of a beam provided at a casing driver, so as to catch rotation...  
JP2806922B1  
JPH10252371A
To easily insert a screw into a hollow bore by a method wherein rolling rollers, each slightly projecting beyond the outer diameter of the screw, are provided at a spiral blade at the end of the screw, and the rolling rollers are brought...  
JPH10252368A
To contrive not to interrupt a work for fixing a rod, and to prevent the danger of falling of the rod by installing two rod fixing means for a boring machine and automatically fixing and operating the rod fixing means alternately by a co...  
JP2796615B2  
JPH10238262A
To provide an elevating device with which a frame can simply be attached to a guide rail. A sheave block 42 to which a suspended sheave 20 is removably attached to a link member 36 rotatably supported by a frame 10 and integrally fixed t...  
JPH10238268A
To increase efficiency in excavation by forming a boring rod as a double tube structure forming a slime discharge space, and arranging a gathering part in the middle of slime discharge passages. When a boring rod is driven into the groun...  
JPH10238263A
To provide an elevating device with a frame can be simply attached to a guide rail. A sheave block 42 by which a suspended sheave 20 is rotatably supported is removably coupled to a coupling link member 36 rotatably supported to a frame ...  
JPH10238272A
To provide a rock drill which can give a great strike force to a shank rod to obtain high excavating function without making a piston larger. A rock drill is equipped with a shank rod 2 supported so as to be rotatable around an axis O an...  
JP2794447B2  
JPH10231675A
To take a boring device capable of simply and energy conservatively eliminating boring dust from a boring tool and driving torque out of a boring string in a ground bore hole. A hose 15 is held by a boring string 13 to prevent its rotati...  
JPH10220150A
To avoid the impossibility of excavation starting attributable to the voltage drop of a generator when an electric motor is subjected to an excessive load. This ground excavator is provided with a rotary drive means 5 having an electric ...  
JP2786476B2  
JP2813133B2
PURPOSE: To prevent concrete milk, etc., adhered to a rod from being splashed. CONSTITUTION: A swing stop mechanism 18 which is installed on a leader located on the underside of a rotating drive mechanism to rotate a rod 14 at the tip of...  
JP2784454B2  
JPH10205259A
To bury an embedding pipe having a larger diameter by using a compressor of the same capacity with a compressor for a smaller diameter pipe. A drilling rod 8 provided with a drilling bit 13 is inserted into the front end of the inside of...  
JP2809559B2
PURPOSE: To form a continuous wall having excellent linearity by installing a guide shaft to one side on a line of an excavator provided with a plurality of excavation shafts whose shaft core is laid out on the line. CONSTITUTION: A plur...  
JPH10196268A
To form a longitudinal hole of sufficient depth while making a device compact and lightweight on the whole regarding a hole excavating device for excavating the longitudinal hole, relatively large in hole diameter and depth, in the groun...  

Matches 651 - 700 out of 2,015