Abstract: This is a technology for non-contact power transmission to the laboratory animal biological information acquisition device 12 embedded in the multiple laboratory animals in the breeding cage 14, and provides the power reception device, which can observe the behavior of laboratory animals from outside without covering the breeding cage 14 with the power transmission side, and which can continuously supply power regardless of the direction and position of the laboratory animals. The secondary coil part 22 includes a magnetic core 31 having a circular cross-section perpendicular to the longitudinal direction, and a plurality of spiral coils 40a and 40b formed by winding a conductor so that the outer shape is substantially rectangular.

Abstract: Changeover clutch discs for a direct coupling clutch and a change-speed clutch, respectively, are disposed in two stages in a radial direction across a movable element which can move in axial directions of an input shaft. A carrier and the movable element are brought into meshing engagement with each other such that the movable element does not rotate relative to the carrier. The changeover clutch discs mesh with clutch discs which are disposed on the input shaft and a casing, respectively. A coned disc spring and an electromagnetic actuator are disposed such that operating directions of the spring and the actuator are opposed to each other. The coned disc spring keeps the direct coupling clutch in normally engaged condition with its biasing force, and the electromagnetic actuator brings a change-speed clutch into engagement after it has released the engagement of the direct coupling clutch by virtue of its thrust.

Abstract: Changeover clutch discs for a direct coupling clutch and a change-speed clutch, respectively, are disposed in two stages in a radial direction across a movable element which can move in axial directions of an input shaft. A carrier and the movable element are brought into meshing engagement with each other such that the movable element does not rotate relative to the carrier. The changeover clutch discs mesh with clutch discs which are disposed on the input shaft and a casing, respectively. A coned disc spring and an electromagnetic actuator are disposed such that operating directions of the spring and the actuator are opposed to each other. The coned disc spring keeps the direct coupling clutch in a normally engaged condition with its biasing force, and the electromagnetic actuator brings a change-speed clutch into engagement after it has released the engagement of the direct coupling clutch by virtue of its thrust.

Abstract: Changeover clutch discs for a direct coupling clutch and a change-speed clutch, respectively, are disposed in two stages in a radial direction across a movable element which can move in axial directions of an input shaft. A carrier and the movable element are brought into meshing engagement with each other such that the movable element does not rotate relative to the carrier. The changeover clutch discs mesh with clutch discs which are disposed on the input shaft and a casing, respectively. A coned disc spring and an electromagnetic actuator are disposed such that operating directions of the spring and the actuator are opposed to each other. The coned disc spring keeps the direct coupling clutch in normally engaged condition with its biasing force, and the electromagnetic actuator brings a change-speed clutch into engagement after it has released the engagement of the direct coupling clutch by virtue of its thrust.

Abstract: Changeover clutch discs for a direct coupling clutch and a change-speed clutch, respectively, are disposed in two stages in a radial direction across a movable element which can move in axial directions of an input shaft. A carrier and the movable element are brought into meshing engagement with each other such that the movable element does not rotate relative to the carrier. The changeover clutch discs mesh with clutch discs which are disposed on the input shaft and a casing, respectively. A coned disc spring and an electromagnetic actuator are disposed such that operating directions of the spring and the actuator are opposed to each other. The coned disc spring keeps the direct coupling clutch in a normally engaged condition with its biasing force, and the electromagnetic actuator brings a change-speed clutch into engagement after it has released the engagement of the direct coupling clutch by virtue of its thrust.

Abstract: An auxiliary driving system is provided to ensure that a vehicle equipped with an automatic transmission can be moved or permitted to travel without use of the driving force of the vehicle engine in the event of an emergency. The main driving wheels are normally driven through an engine and an automatic transmission and a pair of auxiliary driving wheels are driven by motors. In a usual state, the motors are used to generate an auxiliary driving force or a creep force in the vehicle. However, if the vehicle engine is stopped due to engine trouble or failure, the motors can be driven based on the amount of accelerator pedal depressed to rotate the auxiliary driving wheels and thereby permit the vehicle to travel. Thus, movement of the vehicle can be easily accommodated in the event of an emergency such as when the vehicle engine has failed.