Abstract: A communication unit includes a circuit board on which a communication circuit is provided, an antenna connected to the circuit board, and a housing storing the circuit board and the antenna. The housing includes an upper plate, a lower plate, and an outer wall. The upper plate is located above the lower plate. An inner space is defined by the upper plate, the lower plate, and the outer wall. In the inner space, an inner wall surrounds the entire periphery of the circuit board in a plan view and projects from a lower surface of the upper plate to a position farther downward than the circuit board in a side view.

Abstract: An OHV engine includes V-shaped banks, a crank shaft, a cam shaft connected to the crank shaft, a mechanical supercharger located between the V-shaped banks, and a power transmission supported by the cam shaft and that connects the crank shaft to the mechanical supercharger. The power transmission includes a gear mechanism with a gear ratio not greater than a predetermined value, and includes a first gear supported rotatably by the cam shaft and that rotates based on an output from the crank shaft, a second gear provided on a rotation shaft of the mechanical supercharger, and an idle gear that connects the first and second gears with each other. Cylinders are offset with respect to a center of the crank shaft on an anti-thrust side of the cylinders, and the mechanical supercharger is also offset with respect to a center of the crank shaft on the anti-thrust side. Cylinder heads are provided with oil cooling paths adjacent respective spark plugs.

Abstract: An inverter power generator includes an engine, an actuator that adjusts the position of a throttle valve of the engine, a power generator that generates AC power from a driving force of the engine, a converter that converts the AC power outputted from the power generator into DC power, an inverter that converts the DC power outputted from the converter into AC power, a current detector that detects the current of the AC power outputted from the inverter, a voltage detector that detects the voltage of the AC power outputted from the inverter, a target rotation speed determiner that determines a target rotation speed of the engine based on a detected current value and a correction value based on the difference between a target voltage value and the detected voltage value, and an actuator controller that controls the actuator based on the determined target rotation speed.

Abstract: An air-cooled engine generator usable in an enclosed and relatively small indoor space includes an engine including a crank shaft on which a generator and a fan are provided. An outside cover includes a discharge aperture which discharges cooling air generated by the fan, and covers the engine, the generator, the fan, and a cooling section. The cooling section includes a mixing chamber where a coolant introduced from the outside and exhaust gas discharged from an exhaust pipe of the engine mix with each other, and an outer circumferential surface which is cooled by the coolant that is introduced into the mixing chamber. The exhaust gas is mixed with and cooled by the coolant in the mixing chamber while the cooling air which is supposed to be discharged out of the air-cooled engine generator is cooled by the outer circumferential surface of the cooling section.

Abstract: A golf car includes a frame including main frames and cross members, an undercover that includes a front cover and a rear cover and is supported by the frame, and an engine room including an underside defined by the undercover. The front cover includes a rear end region provided with pawls. The rear cover includes a front end region provided with pawls. All of the pawls are engaged with the cross member. The front cover is fixed to the cross member and the main frames with fasteners, and the rear cover includes a rear end region fixed to the main frames with fasteners. The front cover and the rear cover include water drainage holes.

Abstract: A self-driving vehicle includes a plurality of operation members for the driver to operate and a controller. The plurality of operation members includes a steering operation member, a brake operation member, and an accelerating operation member. The controller has, as control modes thereof, an automatic operation mode and a manual operation mode. The operation member that is predefined as a trigger for the shift from the automatic operation mode to the manual operation mode differs depending on states of the vehicle in the automatic operation mode. The self-driving vehicle enables the driver to shift the control mode from the automatic operation mode to the manual operation mode with a simple operation.

Abstract: A vehicle includes a fixed member. The fixed member includes a grip portion located adjacent to (in the vicinity of) the steering wheel. The grip portion extends from the lower side to the upper side of the steering wheel when the steering wheel is viewed in the direction along the rotation shaft of the steering wheel. Also, the steering wheel is rotatable independently of the fixed member. According to this vehicle, the driver can react instantly to the shift to the manual operation mode.

Abstract: A golf car includes an engine and a shroud that covers a cylinder body. The shroud communicates with a muffler cover, which covers a muffler. A silencer is provided at an outlet of the muffler. An elastic exhaust duct is connected to an exit end portion of the muffler cover. An undercover is located lower than the engine, and defines an underside of an engine room. The undercover includes an opening at a more rearward position than the muffler in a side view. The exhaust duct is routed above the undercover, includes a rearward end portion at the opening, and is fitted to the opening. Holders hold sound absorbing members on an inner circumferential surface of the exhaust duct.

Abstract: A golf car includes a floor panel between front wheels and rear wheels. The floor panel includes first and second panels. An opening is provided in the second panel. A groove communicates with the opening, and is continuous from the second panel to the first panel. The groove is covered by a lid. External air from the groove is supplied by a fan into a shroud which covers a cylinder body and also into a muffler cover which covers a muffler. External air from an air intake duct, which faces the groove, is cleaned by an air cleaner and then supplied into the engine.

Abstract: An engine includes a crankcase with cylinders and fins on outer circumferences of the cylinders. A crank shaft penetrates the crankcase. A cooling fan is provided on an outer side of the crankcase and arranged coaxially with the crank shaft. A first cover covers an outer side of the cylinders and the crankcase, and the cooling fan. A second cover capable of being detached from/attached to the first cover. The first cover includes a first opening facing the cooling fan, and second openings facing the fins. The second cover includes an air inlet facing the first opening, and attached to the first cover to cover the first opening and the second openings.

Abstract: An engine includes a crank shaft inside a crankcase and an oil pan and penetrates the crankcase and the oil pan in an up-down direction. An oil pump and an oil strainer are provided inside the oil pan. The oil pump is coaxial with the crank shaft and is driven by the crank shaft. The crank shaft includes a first region and a second region respectively supported pivotably by a plate-shaped support and the crankcase. The support is provided in the crankcase such that both surfaces of the support are covered by the crankcase and the oil pan and allows communication between the crankcase and the oil pan.

Abstract: An engine generator includes a generator body connected to an engine, a converter including rectifiers that convert an output from the generator body to DC current, an inverter that converts an output from the converter to AC current, an input voltage detector that detects an input voltage from the generator body to the converter, and an AC current detector that detects an AC current output from the inverter. An abnormality in the engine generator is determined if a state that a current detected by the AC current detector is not higher than a first threshold value and a duty ratio of a voltage detected by the input voltage detector is not higher than the second threshold value continues for a first predetermined time; or if the current detected by the AC current detector is not higher than a third threshold value and the duty ratio change rate is not higher than a fourth threshold value.

Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.

Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.

Abstract: A golf cart includes a frame, an adjuster, and a pair of suspension assemblies that reduce changes in camber angles in a pair of wheels caused by an adjustment of a ground clearance. The adjuster includes a pair of first adjusting portions and a pair of second adjusting portions. Each of the first adjusting portions includes a first upper hole and a first lower hole. Each of the second adjusting portions includes a second upper hole and a second lower hole. Each suspension assembly includes a damper and an arm portion. When the golf cart is set to a high ground clearance, the first adjusting portions are installed between the frame and the dampers, and the second adjusting portions are installed between the frame and the arm portions.