Komatsu Corporation

Kabushiki Kaisha Komatsu Seisakusho

Piolax, Inc.

Takao Nagai

Nobuki Hasegawa

Tsugio Sudo

Shigeru Yamamoto

Koji Takeda

Masanori Tojima

Satoshi Ogawa

Taku Murakami

Kazunori Kuromoto

Kyouji Uranaka

Jiro Akagi

Kunihiko Imanishi

Sadachika Akiyama

Koichi Okamoto

Katsuhiro Kajino

Yasuyuki Suzuki

Hideo Sato

Yasuhiro Yanagida

Tsugio Sudou

Yukio Sugano

Tomoyoshi Ohnuki

Masaki Mori

Kouichi Yamashita

Ken Sodeyama

Hidetada Fukushima

Takahiro Sakai

Tomoyuki Matsumoto

Kozo Miyake

Yutaka Kamada

Takeaki Tanaka

Yoichi Kinosita

There is provided a hose clamp. A clamp has a clamp body. On one end portion of the clamp body, a slit is provided and a first grip piece is formed. On the other end portion of the clamp body, a second grip piece is formed. A holder is provided with a holding groove and a grip portion. The holding groove has an insertion opening opened in a direction intersecting with an axial direction of the clamp body, and a side opening opened on at least one end side in the axial direction of the clamp body. A protrusion is provided on at least one of opposing inner surfaces of the holding groove. When the pair of grip pieces are inserted in the holding groove, the protrusion can be arranged inside a part of the slit located in the first grip piece.

Hose clamp

A power support system to an electric work machine includes: a cable holding unit configured to hold a cable that transmits power; a cable support pole configured to support the cable held by the cable holding unit at a position higher than a height of a vehicle that travels on a track that intersects at a position where the cable is disposed; and a travel device connected to the cable holding unit and the cable support pole and configured to perform a traveling operation so as to be able to move the cable holding unit and the cable support pole.

Pole-attached cable relay carriage and power supply system to electric work machine

A mine power management system includes: a first power line provided at an ascent and configured to exchange electric power with an ascending vehicle traveling on the ascent; a second power line provided at a descent and configured to exchange electric power with a descending vehicle traveling on the descent; and a power supply and storage apparatus configured to exchange electric power at least between the first power line and the second power line.

Mine power management system

A hose clamp includes a plate spring main body, and a slit and a first grip piece are formed at one end portion, while an insertion piece and a second grip piece are formed at the other end portion thereof. A locking piece having a hook-shaped locking portion is formed on the first grip piece via a bent portion, while an engagement holding portion is formed on the second grip piece. Provided on the locking piece are a taper portion which expands from the locking portion towards the bent portion and a stopper portion which extends substantially parallel to the first grip piece. The taper portion is disposed along a plane which is substantially parallel to a circumferential surface of the plate spring main body, and an intersection point between the taper portion and the stopper portion is offset in a width direction relative to the locking portion.

An air damper is provided which can exhibit an appropriate braking force in accordance with an input load. There is provided an air damper including: a tubular cylinderin which both end portions are opened; a pistonwhich moves within the cylinderand a capwhich closes a one-end opening of the cylinder, wherein the cylinderhas an annular seal surfaceformed on a circumferential surface of the one-end opening, wherein the cap is mounted on the one-end opening side of the cylinderso as to be moveable or deformable along an axial direction of the cylinder, wherein the cap is brought into contact with or separated from the seal surfacein accordance with a pressure change due to a movement of the pistonwithin the cylinder, and wherein a first orificeis opened in a base plateof the cap, characterized in that: a second orifice having an inlet area smaller than the first orifice is defined between the capand the cylinderduring an operation of the first orifice

Air damper

A fuel delivery system of a machine capable of efficiently feeding fuel, where a time of feeding fuel to a construction machine is estimated based on operation information of the construction machine. Based on position information of the construction machine acquired by position information acquiring means and estimated time of feeding fuel, a delivery schedule, which has a short moving distance and capable of delivering and feeding fuel efficiently in a short period of time, is formed. The delivery schedule is notified to a controller of the construction machine. The delivery schedule is reconstructed by a set input of a change in the delivery schedule from the controller. A specified form for requesting expense of feeding fuel is automatically formed from a fuel feeding amount after fuel has been delivered and fed by the formed delivery schedule and confirming to feed fuel.

Fuel delivery system of machine, fuel delivery method and fuel delivery program of the same

A mine transportation management system capable of reducing cost by reducing the number of transportation vehicles is provided. For this purpose, the system includes a plurality of self-propelled vehicles and a plurality of vessels each having a communication section, and each being identifiable, which are connectable to and separable from each other. A loading machine having a communication section, which loads an object into at least one of the vessels. A management center, which has a communication section, selects a vessel to be transported and selects a self-propelled vehicle for transporting the selected vessel based on a transportation demand signal from a processing facility, and transmits a transportation command signal to the selected self-propelled vehicle to connect to the selected vessel and to travel to the processing facility.

Mine transportation management system and method using separate ore vessels and transport vehicles managed via communication signals

To provide a carrier vehicle capable of restraining an increase in cost of a power train, the carrier vehicle is constructed by front axles provided respectively steerably on left and right sides of a front portion of the vehicle and mounted with wheels, a first engine provided at the front portion of the vehicle, a first drive axle provided at a middle portion of the vehicle and mounted with wheels at both left and right ends thereof, a first transmission, a second drive axle provided at a rear portion of the vehicle and mounted with wheels at both left and right ends thereof, a second engine provided at the rear portion of the vehicle and on an upper side of the second drive axle, and a second transmission provided to connect to a front side of the second engine.

Carrier vehicle

Only snapshot data necessary for monitoring faults are collected from machine such as vehicles, allowing faults to be more accurately monitored, and the amount of data and the memory storage volume at a monitoring station to be reduced. The values of a plurality of (A), (B), (C), and (D) operating parameters (engine rotational speed, lever operating position, vehicle speed, and tractive force) which change during the operation of the machine are sequentially detected for each machine. The fault detection history data are thus updated every time a fault (drop in engine oil pressure, overheating) is detected during the operation of the machine. Thus, when a fault (drop in engine oil pressure) is detected during the operation of the machine, it is determined on the basis of the history data whether or not to send to the monitoring station the sequential values of the operating parameters ((A) engine rotational speed, (B) lever operating position, (C) vehicle speed, (D) tractive force) from within a prescribed period of time (from 10 min. before to 5 min. after) around the point in time t0 at which the fault was detected. When it is determined that they should be sent, the type of detected fault (0001 (drop in engine oil pressure)), the values detected ((A) 2, (B) 3, (C) 3, (D) 2) at the time the fault was detected, as well as the sequential values of the operating parameters from within a prescribed period of time (from 10 min. before to 5 min. after) around the time the fault was detected are transmitted to the monitoring station. When it is determined that they should not be sent, on the other hand, the type of detected fault (0001 (drop in engine oil pressure)) and the values detected ((A) 2, (B) 3, (C) 3, (D) 2) at the time the fault was detected are sent to the monitoring station.

Machine fault monitoring apparatus and method

Maintenance due times of components of a machine are determined according to the status of user-performed in-house maintenance and according to the occurrence of abnormalities during machine operation. A subtraction point (20 points) associated with an abnormality (overheating) detected during machine operation is subtracted from the score (80 points) of a corresponding component (engine) in the machine. An addition point (50 points) associated with the type of maintenance (overhaul performed by in-house maintenance) indicated in maintenance information is added to the score (80 points). Thus, at the time where the value resulting from subtractions from and additions to the score for that component (engine) reaches a prescribed value (10 points) indicating maintenance due time, it is determined that the maintenance due time for that component (engine) has been reached.

Method and apparatus for determining machine maintenance due times

Method and apparatus for preparing running course data for an unmanned

A collision preventing system for a vehicle has a brake system. The system includes first preview sensor detecting an obstacle in front of the vehicle in a first distal detection zone to produce a first signal indicative of presence of the obstacle and distance between the obstacle and the front end of the vehicle, and a second preview sensor detecting the obstacle in front of the vehicle in a second proximal detection zone to produce a second signal indicative of at least presence of the obstacle. The system further includes third vehicle speed sensor detecting vehicular traveling speed and generating a vehicle speed indicative signal. A control unit is connected to the first and second preview sensor for receiving the first and second signals. The control unit is responsive to the first signal for deriving vehicular deceleration pattern for stopping the vehicle without colliding on the obstacle on the basis of the distance between the obstacle and the front end of the vehicle and the vehicle speed indicated by the vehicle speed indicative signal, and responsive to the second signal for operating the brake system for instant stop of the vehicle.

System for preventing collision for vehicle

Hydraulic drive system for steerable wheel of dump truck

System for measuring carrying weight of vehicle

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Yokohama, Japan

Takao Nagai