Abstract: An overhead line damper capable of suppressing a lift force that an overhead line receives due to wind is provided. A damper 1 for an overhead line that is provided at an overhead line L2 includes a clamping mechanism (a pair of hinge pieces 21a and 21b) that is fitted to an outer circumferential surface of the overhead line L2, and a rotary member 4 with a lower part attached to weights 3a and 3b, and an upper part rotatably attached to the clamping mechanism, and the clamping mechanism has a regulation part (an opening part 24) that regulates a rotation range of the rotary member 4 so that the weights 3a and 3b rotate within an angle range from ±20 degrees to ±40 degrees inclusive in a vertical direction.

Abstract: A wiper arm including an arm head having an arm head body and cover member. The cover member is attached to the arm head body and can open and close. The mechanical strength of the arm head can be increased. The arm head includes a head cap which is rotatably attached to rotating shafts and provided on the inner side surfaces of both side sidewalls of an arm head body. When the head cap is in its closed position, a front-side half section of the head cap is disposed between both side sidewalls. On the rear surface of a rear-side half section of the head cap, a cylindrical cap-side fitting section is provided and fits with a nut disposed on the arm head body. The cap-side fitting section includes slits and is formed so that the height in its vertical direction decreases in a front-side portion.

Abstract: An overhead line damper capable of suppressing a lift force that an overhead line receives due to wind is provided. A damper 1 for an overhead line that is provided at an overhead line L2 includes a clamping mechanism (a pair of hinge pieces 21a and 21b) that is fitted to an outer circumferential surface of the overhead line L2, and a rotary member 4 with a lower part attached to weights 3a and 3b, and an upper part rotatably attached to the clamping mechanism, and the clamping mechanism has a regulation part (an opening part 24) that regulates a rotation range of the rotary member 4 so that the weights 3a and 3b rotate within an angle range from ±20 degrees to ±40 degrees inclusive in a vertical direction.

Abstract: A vehicular lead storage battery according to the present invention includes a battery container provided with at least one cell chamber; and a cover plate 1 for covering an upper opening of the battery container. A guide path 8 for discharging gases within a cell chamber to the outside is formed in the cover plate 1. The guide path 8 includes a first guide portion 9B for horizontally guiding gases from the cell chamber; a second guide portion 9C connected to the first guide portion 9B to downwardly guide the gases from the first guide portion 9B; and a third guide portion 10A connected to the second guide portion 9C to horizontally guide the gases from the second guide portion 9C and discharge the gases from an exhaust vent 4K formed in the cover plate 1 to the outside. A corner portion 9K is formed by the first guide portion 9B and the second guide portion 9C, and a corner portion 10K is formed by the second guide portion 9C and the third guide portion 10A.

Abstract: There is provided a wiper arm rotatably connecting an arm body to an arm head and including a spring member provided between the arm head and the arm body, the thickness of which is decreased while its mechanical strength is sufficiently maintained. A gap section reaching a pivot shaft hole is provided in a head connection section of a retainer. A recess is provided on a pivot shaft section of an arm head. During the retainer rotates, a straight section of the coil spring moves from the gap section to the recess. When the retainer reaches its upright position, the straight section is disposed within the recess. The pivot shaft section includes a projection disposed within the gap section and in contact with the divided pieces, on the both sides of the gap section.

Abstract: There is provided a wiper arm including a head cover attached to an arm head and securely preventing the head cover from coming off the arm head. A wiper arm (1) includes an engaging protrusion (19) which extends upward and is disposed on a step section (18) formed at a lower end of a dent section (17) formed on a side surface of an arm head (2), and a protruding engagement section (27) formed near a lower end of an inner surface of a side wall (23) of a head cover (4). An opening section (27A) opening downward is formed in the protruding engagement section (27). The engaging protrusion (19) fits into the opening section (27A) along a vertical direction, namely, a direction along the side wall (23). The open end of the side wall (23) of the head cover (4) is thereby prevented from being widened outward so that the head cover (4) is prevented from coming off the arm head (2).

Abstract: A wiper arm including an arm head having an arm head body and cover member. The cover member is attached to the arm head body and can open and close. The mechanical strength of the arm head can be increased. The arm head includes a head cap which is rotatably attached to rotating shafts and provided on the inner side surfaces of both side sidewalls of an aim head body. When the head cap is in its closed position, a front-side half section of the head cap is disposed between both side sidewalls. On the rear surface of a rear-side half section of the head cap, a cylindrical cap-side fitting section is provided and fits with a nut disposed on the arm head body. The cap-side fitting section includes slits and is formed so that the height in its vertical direction decreases in a front-side portion.

Abstract: A vehicular lead storage battery according to the present invention includes a battery container provided with at least one cell chamber; and a cover plate 1 for covering an upper opening of the battery container. A guide path 8 for discharging gases within a cell chamber to the outside is formed in the cover plate 1. The guide path 8 includes a first guide portion 9B for horizontally guiding gases from the cell chamber; a second guide portion 9C connected to the first guide portion 9B to downwardly guide the gases from the first guide portion 9B; and a third guide portion 10A connected to the second guide portion 9C to horizontally guide the gases from the second guide portion 9C and discharge the gases from an exhaust vent 4K formed in the cover plate 1 to the outside. A corner portion 9K is formed by the first guide portion 9B and the second guide portion 9C, and a corner portion 10K is formed by the second guide portion 9C and the third guide portion 10A.

Abstract: A power generation unit includes a motor generator having a rotor with magnet, and a stator with coils driven in a plurality of phases, the coils of the respective phases not being connected to each other; and a driving control part that performs control so that a coil of each phase of the stator is brought into any one of a first state in which torque is generated by the rotor, a second state in which both ends of the coil are electrically released, and a third state in which both ends of the coil are short-circuited.

Abstract: A generator motor unit includes a generator motor including a rotor equipped with magnets, and magnetic bodies that protrude from a wall surface, a first stator that makes magnetic flux act on the magnets, thereby generating torque in the rotor, and a second stator that makes magnetic flux act on the magnetic bodies, thereby generating torque in the rotor; and a controller that controls energization of coils of the first stator and the second stator.

Abstract: A battery charging apparatus for a vehicle includes a driver, a position detector, and a controller. The driver includes switching elements to convert three-phase AC power outputted from a winding of each phase of a stator of a three-phase AC generator into DC power to supply the DC power to a battery. The position detector is configured to output a position detection signal indicating a position of a rotor of the three-phase AC generator. The controller is configured to control the switching elements to be switched between an energized state and non-energized state. The controller is configured to have a maintenance period during a period until next input of the position detection signal if the period exceeds an energization period. The switching elements are to be maintained in the maintenance period in the energized state or non-energized state immediately before the period exceeding the energization period.

Abstract: There is provided a wiper arm rotatably connecting an arm body to an arm head and including a spring member provided between the arm head and the arm body, the thickness of which is decreased while its mechanical strength is sufficiently maintained. A gap section reaching a pivot shaft hole is provided in a head connection section of a retainer. A recess is provided on a pivot shaft section of an arm head. During the retainer rotates, a straight section of the coil spring moves from the gap section to the recess. When the retainer reaches its upright position, the straight section is disposed within the recess. The pivot shaft section includes a projection disposed within the gap section and in contact with the divided pieces, on the both sides of the gap section.

Abstract: There is provided a wiper arm including a head cover attached to an arm head and securely preventing the head cover from coming off the arm head. A wiper arm (1) includes an engaging protrusion (19) which extends upward and is disposed on a step section (18) formed at a lower end of a dent section (17) formed on a side surface of an arm head (2), and a protruding engagement section (27) formed near a lower end of an inner surface of a side wall (23) of a head cover (4). An opening section (27A) opening downward is formed in the protruding engagement section (27). The engaging protrusion (19) fits into the opening section (27A) along a vertical direction, namely, a direction along the side wall (23). The open end of the side wall (23) of the head cover (4) is thereby prevented from being widened outward so that the head cover (4) is prevented from coming off the arm head (2).

Abstract: A battery charging apparatus includes a plurality of input terminals which are connected to respective phases of a three-phase AC dynamo, and a rectifying circuit including a plurality of rectifying elements and a plurality of switching elements. A switching element control unit and pulse generation unit are provided, for controlling the turning on/off of the switching elements, and for generating a pulse signal, respectively. The switching element control unit is configured to control the plurality of switching elements, and includes a potential difference detection unit configured to detect potential differences between potentials of input terminals, and a specifying unit configured to determine a phase order of AC outputs which are input to the input terminals.

Abstract: A power generation unit includes a motor generator having a rotor with magnet, and a stator with coils driven in a plurality of phases, the coils of the respective phases not being connected to each other; and a driving control part that performs control so that a coil of each phase of the stator is brought into any one of a first state in which torque is generated by the rotor, a second state in which both ends of the coil are electrically released, and a third state in which both ends of the coil are short-circuited.

Abstract: A battery charging apparatus includes a position sensor for outputting a position detection signal, a sensor for detecting an output current or voltage of a predetermined phase, a regulator for supplying DC power obtained by rectifying three-phase AC from the generator to a battery, and an inverter control section for executing energization control of the respective switching elements of the regulator based on a phase of an induced voltage of the generator calculated on the basis of the position detection signal. The inverter control section inputs a revolution speed signal Ne of the generator, the position detection signal Tp, and either output signal out of a current signal or a voltage signal detected by the sensor, and estimates an error of an attaching position of the position sensor with respect to the induced voltage of the predetermined phase based on the position detection signal and the output signal.

Abstract: A generator motor unit includes a generator motor including a rotor equipped with magnets, and magnetic bodies that protrude from a wall surface, a first stator that makes magnetic flux act on the magnets, thereby generating torque in the rotor, and a second stator that makes magnetic flux act on the magnetic bodies, thereby generating torque in the rotor; and a controller that controls energization of coils of the first stator and the second stator.

Abstract: A wiper arm including an arm main body pivotably connected to an arm head is provided in which the rotation angle of the arm main body is appropriately restricted while minimizing changes of the structure of the wiper arm from that of a wiper arm capable capable to be positioned in its locked back condition. A wiper arm 1 includes a retainer 3 capable of retaining a wiper blade, an arm head body 2 connected with the retainer 3 through a connection shaft 14 so that the retainer 3 is rotatable between an operational position and an upright position, and a rotation restricting member 30 pivotally connected through pivot shafts 16 provided on inner surfaces 12A of head arm sections 12 of the arm head body 2. The rotation restricting member 30 is pivotable around the pivot shaft 16 between a rotation restricting position and a rotation permitting position. In the rotation restriction position, the rotation restricting member 30 limits the rotation angle of the retainer 3 by contacting against the retainer 3.

Abstract: A battery charging apparatus for a vehicle includes a driver, a position detector, and a controller. The driver includes switching elements to convert three-phase AC power outputted from a winding of each phase of a stator of a three-phase AC generator into DC power to supply the DC power to a battery. The position detector is configured to output a position detection signal indicating a position of a rotor of the three-phase AC generator. The controller is configured to control the switching elements to be switched between an energized state and non-energized state. The controller is configured to have a maintenance period during a period until next input of the position detection signal if the period exceeds an energization period. The switching elements are to be maintained in the maintenance period in the energized state or non-energized state immediately before the period exceeding the energization period.

Abstract: A battery charging apparatus includes a position sensor for outputting a position detection signal, a sensor for detecting an output current or voltage of a predetermined phase, a regulator for supplying DC power obtained by rectifying three-phase AC from the generator to a battery, and an inverter control section for executing energization control of the respective switching elements of the regulator based on a phase of an induced voltage of the generator calculated on the basis of the position detection signal. The inverter control section inputs a revolution speed signal Ne of the generator, the position detection signal Tp, and either output signal out of a current signal or a voltage signal detected by the sensor, and estimates an error of an attaching position of the position sensor with respect to the induced voltage of the predetermined phase based on the position detection signal and the output signal.