Abstract: A robotic working apparatus includes: a working robot configured to perform work while autonomously traveling in a set working area; and a controller configured to control motion of the working robot and including a working area setting section configured to partition and set the working area. The working area setting section sets an individual enclosed area overlapping with an existing working area.

Abstract: Provided is a highly reliable, cost-effective scattered object collection system that can efficiently collect scattered objects by reducing unnecessary traveling of a traveling collector. The scattered object collection system includes a traveling collector that performs a collecting operation by picking up balls B while traveling in a work area W, sets a virtual work area Z (or a virtual priority work area Za) to an area in the work area W where balls are relatively densely present and in the vicinity of the storage space of balls, and allows the traveling collector to perform a collecting operation in the virtual work area Z (or the virtual priority work area Za) with higher priority than the other areas.

Abstract: A mower includes a first traveling unit which travels on a ground, a first operating unit which is joined to the first traveling unit and includes a blade which mows grass on the ground, and a guide member provided in front of the first traveling unit. While the first traveling unit travels forward, balls (objects) on the ground and in contact with the guide member move along the guide member.

Abstract: A robotic working apparatus includes: a working tool configured to perform work on a field; a working robot configured to perform the work while autonomously traveling on the field; and a processor configured to set a traveling route for the working robot and control motion of the working robot In a case where a first area and a second area are set on the field as working areas of the working robot, when the working robot moves from a work end point in the first area to a work start point in the second area, the processor sets a route from the work end point to a base, and a route from the base to the work start point, which are different at least in part from one another.

Abstract: A robotic collection system includes: a working robot configured to autonomously travel on a field to collect target objects on the field; and a management controller configured to manage a work schedule of the working robot. The management controller includes a processor. The processor obtains information about an amount of the target objects on the field, and changes an existing work schedule based on the information.

Abstract: A four-cycle engine wherein a fuel-air-oil mixture is compressed in a crank case chamber and directed therefrom along a pathway to a combustion chamber. The pathway contains actuating mechanism for actuating the fuel intake valve leading to the combustion chamber. The pathway is restricted in volume as permitted by the actuating mechanism, preferable to a range of two to four times the piston displacement.

Abstract: A four-cycle engine fueled by a mixture of fuel and lubricant and including valve actuation mechanism contained in the path of the fuel flow. A component of the mechanism including a rotating gear having a gear shaft journalled between wall portions of the engine whereat the wall portions define in part the flow path of the fuel. Through holes provided in the walls to direct fuel-lubricant to the shaft ends journalled in the wall portions for lubrication of the said shaft ends.

Abstract: A small engine for outdoor power equipment wherein fuel is pumped to the engine's combustion chamber by a reciprocating piston. A desired rate of reciprocation is determined with the engine under load, e.g., with a grass trimmer cutting grass. Avoidance of undesired engine racing is accomplished by restricting airflow to the carburetor which prevents significant increased reciprocation over that desired when cutting. A choke mechanism is provided with a pair of end portions, one of which closes air to the carburetor for starting and the other provides a spaced barrier for inhibiting blow-back. The one end portion includes an inset that seats in the opening through which air enters the carburetor for providing rigidity and to insure closing.

Abstract: A small engine for outdoor power equipment wherein fuel is pumped to the engine's combustion chamber by a reciprocating piston. A desired rate of reciprocation is determined with the engine under load, e.g., with a grass trimmer cutting grass. Avoidance of undesired engine racing is accomplished by restricting airflow to the carburetor which prevents significant increased reciprocation over that desired when cutting. A choke mechanism is provided with a pair of end portions, one of which closes air to the carburetor for starting and the other provides a spaced barrier for inhibiting blow-back. The one end portion includes an inset that seats in the opening through which air enters the carburetor for providing rigidity and to insure closing.

Abstract: A four-cycle engine wherein a fuel-air-oil mixture is compressed in a crank case chamber and directed therefrom along a pathway to a combustion chamber. The pathway contains actuating mechanism for actuating the fuel intake valve leading to the combustion chamber. The pathway is restricted in volume as permitted by the actuating mechanism, preferable to a range of two to four times the piston displacement.

Abstract: A four-cycle engine fueled by a mixture of fuel and lubricant and including valve actuation mechanism contained in the path of the fuel flow. A component of the mechanism including a rotating gear having a gear shaft journalled between wall portions of the engine whereat the wall portions define in part the flow path of the fuel. Through holes provided in the walls to direct fuel-lubricant to the shaft ends journalled in the wall portions for lubrication of said shaft ends.