Abstract: A forklift includes a vehicle including a pair of straddle legs extending forward from a lower part of a vehicle body and provided at an interval in a vehicle width direction, a cargo handling device including a mast provided between the pair of straddle legs and extending in an up-down direction, a lift bracket provided at the mast such that the lift bracket is capable of being raised and lowered, and a pair of forks extending forward from the lift bracket, a reach mechanism including an advance/retract drive unit capable of performing advance/retract drive in a front-back direction on each of the pair of straddle legs, and a coupling portion coupling the mast and the advance/retract drive unit, in which the coupling portion includes a protrusion provided at one of the advance/retract drive unit and the mast and extending in the up-down direction toward the other of the advance/retract drive unit and the mast, and an accommodating portion provided at the other of the advance/retract drive unit and the mast a

Abstract: An initial setting method of an unmanned forklift is an initial setting method when the unmanned forklift is introduced in a facility including a rack structure, which includes placing a palette for adjustment on a palette placing part of the rack structure using the unmanned forklift on the basis of a preset operation program, acquiring relative position information between the palette for adjustment and the rack structure using a position information acquisition part included in the palette for adjustment, and calculating the shift amount of the palette for adjustment placed on the rack structure with respect to the palette placing part on the basis of the relative position information.

Abstract: The initial setting method for the unmanned forklift includes a step of acquiring a measurement value of floor surface inclination of a stop position where the unmanned forklift stops when the unmanned forklift unloads a palette on a rack, a step of setting the stop position where a predetermined inclination pattern is detected, as a precise adjustment position, from the acquired measurement value, a step of causing the unmanned forklift to unload the palette in accordance with an operation program, and measuring a deviation amount of the palette unloaded by the unmanned forklift, at the precise adjustment position, and a step of correcting a command value of the unmanned forklift at the stop position, based on the measured deviation amount.

Abstract: A vehicle image processing device includes: a plurality of buffers configured to accumulate pieces of image data input individually and sequentially from a plurality of cameras installed in a vehicle so as to associate the pieces of image data with the cameras; a processor configured to select the buffer based on the state information of the vehicle and acquire the piece of image data from the selected buffer so as to perform image processing thereon; a signal line for transferring the pieces of image data in the buffers to the processor; and a transfer controller configured to output the piece of image data in the buffer required from the processor to the signal line.

Abstract: A coupling portion that is coupled to a mast that supports a fork and has a mechanism that moves the fork in a vertical direction, the coupling portion disposed on each of both ends in a width direction of the mast, a rail that is disposed on a straddle leg disposed on an outside in the width direction of the mast and extending in a direction where the fork extends, the rail moving the coupling portion in the direction where the fork extends, and a drive unit that is disposed on the straddle leg and moves the mast along the straddle leg are included.

Abstract: A forklift apparatus includes: an error prediction unit configured to predict a first positional error which is a positional error after picking-up between a standard position of a fork and a central position of a pallet on the fork after the pallet is picked up and a first angle error which is an angle error after picking-up with respect to the fork in the pallet; a travel route correction unit configured to correct a travel route from a picking-up position of the pallet to a stacking position of the pallet to offset the first positional error and the first angle error when the pallet is stacked; and a conveyance travel control unit configured to perform travel control such that the pallet is conveyed along the corrected travel route.

Abstract: A position calculation system includes a managing unit managing a current position of a plurality of automated guided vehicles; and a position calculating unit calculating a position of the target automated guided vehicle based on a detection result, detected by the laser measuring device mounted on the target automated guided vehicle, of detecting each reflection light reflected from a specific number being two or more of reflection sources, position information of which is obtainable, existing at positions on mutually different directions viewing from the target automated guided vehicle.

Abstract: A steam valve has a tubular stop valve configured to move toward an upper end side and a lower end side along an axial direction when the stop valve is opened and closed respectively; and a valve main body configured to accommodate the stop valve. The stop valve has a ring-shaped protrusion portion protruded outwardly in a radial direction. The valve main body has an accommodation space for accommodating the protrusion portion which is divided by the protrusion portion into a first pressure space and a second pressure space. First and second feed/discharge portions configured for adjusting a pressure in the first pressure space and the second pressure space respectively are further provided. The protrusion portion is moved upwardly and downwardly by adjusting the pressure in the first pressure space and the second pressure space.

Abstract: A forklift includes a vehicle body, a fork having a distal end extending in a first direction of a first axis, a mast extending along a second axis intersecting the first axis and holding a proximal end of the fork such that the fork is configured to slide along the second axis, and a first sliding mechanism configured to cause the mast to slide along the first axis such that the distal end of the fork protrudes from the vehicle body.

Abstract: A steam valve has a tubular stop valve configured to move toward an upper/lower end side along a direction of an axis when the stop valve is opened/closed; and a valve main body accommodating the stop valve, wherein a base end portion including an end portion of the stop valve at the upper end side is accommodated in a first accommodation space formed in the valve main body, the base end portion has a plurality of inclination surfaces formed on an outer circumference of the base end portion which are inclined such that a distance from the axis to each of the plurality of inclination surfaces decreases toward the upper end side, and a plurality of contact surfaces are formed in the first accommodation space to come in contact with the plurality of inclination surfaces respectively when the stop valve moves toward the upper end side.

Abstract: A forklift includes a lift bracket which is supported on a mast so as to be capable of being moved upward or downward along the mast, and a fork member having a fork claw portion on which a pallet is allowed to be placed, and supported on the lift bracket. The lift bracket has a support portion which is on a tip portion of the lift bracket and supports the fork member. When a weight is applied onto the fork claw portion, the fork member is configured to rotate around the support portion which is configured to serve as a pivot, in response to an application force exerted onto the fork claw portion.

Abstract: A computation device includes a first specifying unit configured to, based on a distance between a vehicle configured to autonomously travel and a pallet to be handled at a position on a first route on which the vehicle travels, specify a second route on which at least one of the vehicle and another vehicle different from the vehicle travels during material handling work that is related to the pallet and performed after the vehicle has traveled on the first route.

Abstract: A vibration suppression system for a loading vehicle includes: a sensor configured to detect a parameter indicating acceleration along a vertical direction of a load handling apparatus or of a vehicle main body of the loading vehicle; a vibration control force generating apparatus configured to apply a vibration control force for suppressing vibration of the loading vehicle; and a controller configured to generate a feedback command to be issued to the vibration control force generating apparatus based on a detection value of the sensor.

Abstract: An on-off valve of the present invention includes a valve box which includes an inlet flow path of steam and an outlet flow path which communicates with the inlet flow path through a communication bole, a stop valve body which opens or closes the communication hole, and a stop valve support portion, in which the outlet flow path extends in a direction intersecting the opening direction of the communication hole toward a downstream side in a flow direction of the steam, and a minimum wall thickness of the valve box is smaller than a minimum wall thickness of the valve box.

Abstract: A position calculation system includes a managing unit managing a current position of a plurality of automated guided vehicles; and a position calculating unit calculating a position of the target automated guided vehicle based on a detection result, detected by the laser measuring device mounted on the target automated guided vehicle, of detecting each reflection light reflected from a specific number being two or more of reflection sources, position information of which is obtainable, existing at positions on mutually different directions viewing from the target automated guided vehicle.

Abstract: An unmanned carrier vehicle includes a vehicle body; a plurality of wheels attached to the vehicle body; a steering actuator for adjusting a steering angle of each of the wheels; a cargo section arranged movably on the vehicle body in planar view; and a control unit configured to output an instruction for moving the cargo section, when adjustment of the steering angle is performed at least in a state that the vehicle body remains stopped, to reduce a load acting on one or more target wheels each being an adjustment target for the steering angle with the steering actuator among the plurality of wheels.

Abstract: A forklift includes a vehicle body, a fork having a distal end extending in one direction of a first axis, a mast extending along a second axis intersecting the first axis and holding a proximal end of the fork such that the fork slides along the second axis, and a first sliding mechanism configured to cause the mast to slide along the first axis so that the distal end protrudes from the vehicle body.

Abstract: The forklift includes a lift bracket which is supported on a mast so as to be capable of being moved upward or downward along the mast, and a fork member having a fork claw portion on which a pallet is allowed to be placed, and supported on the lift bracket, wherein the lift bracket has a support portion which is formed on a tip portion of the lift bracket and which supports the fork member. When a weight is applied onto the fork claw portion, the fork member displaces around the support portion which is configured to serve as a pivot, in response to an application force exerted onto the fork claw portion.

Abstract: This hydraulic oil tank, which is disposed inside a pod of a power generation system, stores hydraulic oil, wherein the hydraulic oil tank is provided with: a rubber bag for use during oil temperature increases, the rubber bag being attached to a tank wall surface from the inner side, having a first internal space communicated with the exterior through an opening passing through the wall surface, and partitioning the first internal space and the wall surface interior in an elastic manner; and a rubber bag for use during oil temperature decreases, the rubber bag being attached to the wall surface from the outer side, having a second internal space communicated with the wall surface interior through an opening passing through the wall surface, and partitioning the second internal space and the wall surface interior in an elastic manner.

Abstract: A steam valve has a tubular stop valve configured to move toward an upper/lower end side along a direction of an axis when the stop valve is opened/closed; and a valve main body accommodating the stop valve, wherein a base end portion including an end portion of the stop valve at the upper end side is accommodated in a first accommodation space formed in the valve main body, the base end portion has a plurality of inclination surfaces formed on an outer circumference of the base end portion which are inclined such that a distance from the axis to each of the plurality of inclination surfaces decreases toward the upper end side, and a plurality of contact surfaces are formed in the first accommodation space to come in contact with the plurality of inclination surfaces respectively when the stop valve moves toward the upper end side.