Abstract: A bidirectional driving mechanism 10 has a drive-side linkage rod 11, a driven-side linkage rod 13, two levers 12 that link the drive-side linkage rod with the driven-side linkage rod, and a guide 14 that regulates the operation of the drive-side linkage rod 11 and the driven-side linkage rod 13. A moveable pin 18 is passed through a first groove cam 16 of the drive-side linkage rod 11, a second groove cam 17 of the guide 14, and third groove cams 19 of the levers 12, and by operation of the drive-side rod 13, the moveable pin 18 moves within the respective groove cams 16, 17, 19, causing the levers 12 to rotate, the driven-side linkage rod 13 to be driven in a direction opposite to the drive-side linkage rod 11, and a driven-side arc electrode 5 to be driven in a direction opposite to a drive-side arc electrode 4.

Abstract: To provide a gas circuit breaker having a space-saving reliable double motion mechanism having a high degree of freedom in design. A double motion mechanism section of the gas circuit breaker is formed of a drive-side connecting rod, a driven-side connecting rod, levers connecting them and a guide regulating operations of the drive-side connecting rod and the driven-side connecting rod. A movable pin is connected to a first grooved cam formed in the drive-side connecting rod, a second grooved cam formed in the guide and third grooved cams formed in the levers respectively, and posture holding members are provided in the movable pin. The movable pin moves in the respective grooved cams by an operation of the drive-side connecting rod, thereby rotating the levers, driving the driven-side connecting rod in an opposite direction of the drive-side connecting rod, and driving the driven-side arcing contact in an opposite direction of the driven-side arcing contact.

Abstract: {Problem} To provide a connector which includes two or more predetermined standard connectors and is capable of securely absorbing deviation in a position and a posture of the two or more predetermined standard connectors during mounting thereof.

Abstract: A capacity ratio estimation apparatus and method for a battery detects current and voltage of the battery; specifies an integration period from a first time point to a second time point and calculates an integration value of the current for the integration period based on detected current; calculates a first open circuit voltage at the first time point based on the detected voltage and calculates a second open circuit voltage of the battery at the second time point based on the detected voltage; and estimates a capacity ratio of the battery based on a voltage difference between the first open circuit voltage and the second open circuit voltage and an integration value satisfying predetermined conditions. The integration value is equal to a predetermined lower limit value or greater and an average value of the current of the battery for the integration period is equal to the predetermined value or greater.

Abstract: {Problem} To provide a connector which includes two or more predetermined standard connectors and is capable of securely absorbing deviation in a position and a posture of the two or more predetermined standard connectors during mounting thereof.

Abstract: Realized is a shape of a grooved cam that maximizes break performance by appropriately setting an electrode operation, with a minimum weight increase.

Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; a temperature history recording unit that records temperature history pertaining to the temperature detected by the temperature detection unit; and a charge/discharge restriction unit that restricts the charge/discharge current in a low-temperature state based upon the temperature history recorded by the temperature history recording unit.

Abstract: A connector includes a first connector and a second connector mounted on an external device. The first connector includes a contact including a contact portion electrically connected to a connection terminal of the second connector by pressing the connection terminal in a predetermined direction; a flexible conductor connected to the contact; a protection member that protects the contact portion by covering a periphery of the contact; a base body that accommodates the contact, the flexible conductor, and the protection member; and an elastic member that is formed separately from the contact and presses the contact and the protection member in a direction opposite to the predetermined direction.

Abstract: A gas circuit breaker includes a breaking unit tank incorporating a fixed electrode and a movable electrode, a spring operation device including a breaking spring and a closing spring and configured to move the movable electrode, and a mechanism unit configured to couple the movable electrode side and the spring operation device side and transmit power received from the spring operation device to the movable electrode. The spring operation device is supported by a frame. The frame is fixed to a rear plate provided in a mechanism unit frame of the mechanism unit. A breaking spring case and a closing spring case of the spring operation device are fixed to pedestals via a plate member 38 and a support section 7.

Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; and a charge/discharge restriction unit that imposes a first charge/discharge restriction so as to restrict the charge/discharge current based upon the effective current value calculated by the effective current value calculation unit.

Abstract: This invention relates to a technique for hermetically sealing an artificial leg including a cylinder device. A rod member of the cylinder device extends from the inside to the outside of a shell structure of the cylinder device. The rod member is hermetically sealed at the periphery thereof by a bellows packing member. The bellows packing member comprises an inner bead, an outer bead which concentrically surrounds the outside of the inner bead, and a bellows packing body part which connects the inner and outer beads. The bellows packing body part includes corrugations, and each corrugation is less curved than an imaginary circle which is concentric with the inner bead and the outer bead. Both ends of each of the plurality of corrugations extend to the outer bead or are located at positions closer to the outer bead than the inner bead.

Abstract: The invention is intended to provide a circuit breaker or a circuit breaker operating method enabling a current interruption action to be performed efficiently. A circuit breaker is characterized in that includes a fixed contact and a movable contact that comes in and goes out of contact with the fixed contact; a main circuit conductor that is electrically connected to the fixed contact and the movable contact; an operating mechanism including a mover configured by concatenating permanent magnets or magnetic materials alternately having opposite N and S magnetic polarities along the direction of motion axis of the movable contact and magnetic poles disposed to face the N and S magnetic polarities of the mover and wound with windings; a current detector that detects a current flowing through the main circuit conductor; and a control device that varies the amount of a current to be supplied to the windings of the magnetic poles, depending on a current value detected by the current detector.

Abstract: A switchgear driving device has a rod coupled to a movable electrode; an operation piston connected to the rod; and an operation cylinder in which an operation piston slides. A main control valve controls the pressure of the hydraulic oil in the operation cylinder. A turning-on pressure accumulation piston slides inside a turning-on pressure accumulation chamber; and a turning-on pressure accumulation spring imparts a driving force to the turning-on pressure accumulation piston to pressurize the hydraulic oil within the turning-on pressure accumulation chamber. A turning-off pressure accumulation piston slides inside a turning-off pressure accumulation chamber. A turning-off pressure accumulation spring imparts a driving force to the turning-off pressure accumulation piston to pressurize the hydraulic oil in the turning-off pressure accumulation chamber.

Abstract: A bidirectional driving mechanism 10 has a drive-side linkage rod 11, a driven-side linkage rod 13, two levers 12 that link the drive-side linkage rod with the driven-side linkage rod, and a guide 14 that regulates the operation of the drive-side linkage rod 11 and the driven-side linkage rod 13. A moveable pin 18 is passed through a first groove cam 16 of the drive-side linkage rod 11, a second groove cam 17 of the guide 14, and third groove cams 19 of the levers 12, and by operation of the drive-side rod 13, the moveable pin 18 moves within the respective groove cams 16, 17, 19, causing the levers 12 to rotate, the driven-side linkage rod 13 to be driven in a direction opposite to the drive-side linkage rod 11, and a driven-side arc electrode 5 to be driven in a direction opposite to a drive-side arc electrode 4.

Abstract: To provide a gas circuit breaker having a space-saving and highly reliable double motion mechanism with high design freedom. In a double motion mechanism of the gas circuit breaker, a driven side movable pin is communicated with a lever driven side hole cut in the opposite side with respect to a rotation axis of a lever. A round hole through which a driving side movable pin is inserted and an elongate hole through which the driven side movable pin is inserted are cut in the outside of the lever. A position retaining member to suppress rotation of the driving side movable pin about two axes vertical to a pin axis is provided. The driving side movable pin is moved in respective grooved cams with an operation of the driving side rod, to rotate the lever, drive the driven side connecting rod in an opposite direction to the driving side connecting rod, and drive the driven side arcing contact in an opposite direction to the driving side arcing contact.

Abstract: The present invention provides a detection device for detecting a load and moment and capable of increasing the output by a strain gage. The detection device is provided with a characteristic sensor block. The sensor block includes a base having an axis extending in the direction of a load to be detected, a front side wall raised from the base at a position offset from the axis of the base, a rear side wall raised from the base at a position offset from the axis of the base in the direction opposite the front side wall, and an upper wall for connecting the upper end of the front side wall and the upper end of the rear side wall. The sensor block supports each strain gauge on the upper surface of the upper wall. The upper wall includes a center portion located at the center between the front side wall and the rear side wall, a first portion located between the center portion and the front side wall, and a second portion located between the center portion and the rear side wall.

Abstract: A battery control system connected to a battery, which controls charge/discharge at the battery, includes: a current detection unit that measures a current value by detecting a charge/discharge current flowing through the battery; a voltage detection unit that detects a voltage at the battery; a temperature detection unit that detects a temperature at the battery; an effective current value calculation unit that calculates, based upon the current value measured by the current detection unit, an effective current value in a predetermined time window; a time ratio calculation unit that determines a time ratio indicating a ratio of a length of time over which the effective current value has been in excess of a predetermined allowable value during a predetermined specified time period; and a charge/discharge restriction unit that restricts the charge/discharge current based upon the time ratio determined by the time ratio calculation unit.

Abstract: A gas circuit breaker includes a breaking unit tank incorporating a fixed electrode and a movable electrode, a spring operation device including a breaking spring and a closing spring and configured to move the movable electrode, and a mechanism unit configured to couple the movable electrode side and the spring operation device side and transmit power received from the spring operation device to the movable electrode. The spring operation device is supported by a frame. The frame is fixed to a rear plate provided in a mechanism unit frame of the mechanism unit. A breaking spring case and a closing spring case of the spring operation device are fixed to pedestals via a plate member 38 and a support section 7.

Abstract: {Problem} To provide a connector which includes two or more predetermined standard connectors and is capable of securely absorbing deviation in a position and a posture of the two or more predetermined standard connectors during mounting thereof.

Abstract: A connector includes a first connector and a second connector mounted on an external device. The first connector includes a contact including a contact portion electrically connected to a connection terminal of the second connector by pressing the connection terminal in a predetermined direction; a flexible conductor connected to the contact; a protection member that protects the contact portion by covering a periphery of the contact; a base body that accommodates the contact, the flexible conductor, and the protection member; and an elastic member that is formed separately from the contact and presses the contact and the protection member in a direction opposite to the predetermined direction.