Abstract: In order to implement a structure capable of improving the resolution of torque measurement while preventing the plastic deformation of a torsion bar (15), an input-side stopper (61) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an input-side rotating body (55) that includes an input shaft (13) and an input gear (7), and an output-side stopper (63) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an output-side rotating body (56) that includes an output shaft (14) and an output gear (8). The input-side stopper (61) and the output-side stopper (63) are combined so as to be engaged to be able to transmit torque only when the torsional angle within the elastic range of the torsion bar (15) reaches a predetermined amount.

Abstract: A rotation transmission device having a high torque measurement resolution is provided.

Abstract: A drive apparatus for an electric automobile in which a planetary gear transmission 12 is assembled for which it is possible to lengthen the traveling distance per one electric charge, and thus improve the convenience of the electric automobile. A planetary gear transmission 12 comprises a first single-pinion planetary gear mechanism 16 and a second double-pinion planetary gear mechanism 17, and after changing the power from first and second electric motors 10, 11 by a desired gear ratio, transmits the power to a driven-side rotating shaft 15. A one-way clutch 18 is provided between a first carrier 19 and a portion 27 that is fastened to the vehicle so as to allow the first carrier 19 to rotate in a specified direction and prevent the first carrier 19 from rotating in a direction opposite the specified direction.

Abstract: A display controller which displays an electronic book and enables a user to perform intuitive operations when switching between pages to be displayed. A CPU detects a cursor position on the most frontally-displayed one of a plurality of pages in response to a user operation. Further, the CPU extracts respective areas of shapes dependent on the detected cursor position, from an image representing the most frontally-displayed page and an image representing a reverse page with respect to the most frontally-displayed page. Then, the CPU draws the extracted areas on the screen.

Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.

Abstract: An electric actuator includes a screw shaft that is mounted on one end of a drag bar, and that has a first helical groove on its outer peripheral surface; a rotor that has a hollow portion into which the screw shaft is arranged, wherein a second helical groove corresponding to the first helical groove is formed on a part of the inner peripheral surface of the hollow portion, and other end of the drag bar projects from the hollow portion; plural balls arranged between the first groove and the second groove; a deflector that is mounted to the rotor for circulating the balls; a stator that rotates the rotor so as to move the drag bar in its longitudinal direction; and a rotation preventing member that is engaged with a part of the drag bar so as to prevent the rotation of the drag bar.

Abstract: A communication device configured to receive content from a server via a network, comprises a storage unit configured to store content received from the server in a cache, a display unit configured to display the content stored in the storage unit, a control unit configured to switch connection to the network to one of a plurality of communication lines having different communication rates, and a setting unit configured to set the size of the content received from the server and the number of histories stored in the cache, in accordance with the communication line to which connection has been switched by the control unit.

Abstract: A upper arm 4b of a suspension for a vehicle is constructed by: a casing 12 that is supported by the vehicle so as to be able to pivot in the up-down direction; a pair of screw shafts 20 that are supported by the casing 12 so as to be able to move only in the axial direction; a pair of screw nuts 21 that engage around the pair of screw shafts 20, and are supported by the casing so as only to be able to rotate; a worm reduction gear 14 that rotates the screw nuts 21; and a pair of link arms 29, where the base end sections respectively connect to the tip end sections of the pair of screw shafts 20 and the tip end sections respectively connect to knuckle 3 so as to be able to rotate around a shaft in the up-down direction of the vehicle. The screw shafts 20 are moved out in opposite directions from each other in the axial direction, which causes the opening angle of the pair of link arms 29a to change, and thus changes the overall length of the upper arm 4b in the width direction of the vehicle.

Abstract: There are provided a hub bearing, a speed reduction mechanism, and an in-wheel motor, including an inner race portion which is fixed to a support mechanism, an outer race portion which is connected to a wheel, and a rolling element which is disposed between the inner race portion and the outer race portion, and the outer race portion includes an outer race member, a wheel flange, and a fixation mechanism. The end surface of the wheel flange away from the outer race member in a direction parallel to a rotation shaft extends to the rotation shaft in relation to the inner race portion in the radial direction of the rotation shaft.

Abstract: Construction capable of improving the convenience of an electric automobile is achieved by making the drive apparatus for an electric automobile in which a planetary-gear transmission 11 is assembled more compact and simple, and increasing the distance traveled per charge. The planetary-gear transmission 11 comprises a single-pinion first planetary-gear mechanism 12 and a double-pinion second planetary-gear mechanism 13, and reduces power from an electric motor 1a by a desired reduction ratio before transmitting that power to a driven-side rotating shaft 5a. A first braking device 14 switches a ring gear 22 and a second braking device 15 switches a second sun gear 19 between a state of being allowed to rotate and a state of being prevented from rotating with respect to a fixed portion.

Abstract: A drive apparatus for an electric automobile in which a planetary gear transmission 12 is assembled for which it is possible to lengthen the traveling distance per one electric charge, and thus improve the convenience of the electric automobile. A planetary gear transmission 12 comprises a first single-pinion planetary gear mechanism 16 and a second double-pinion planetary gear mechanism 17, and after changing the power from first and second electric motors 10, 11 by a desired gear ratio, transmits the power to a driven-side rotating shaft 15. A one-way clutch 18 is provided between a first carrier 19 and a portion 27 that is fastened to the vehicle so as to allow the first carrier 19 to rotate in a specified direction and prevent the first carrier 19 from rotating in a direction opposite the specified direction.

Abstract: There is provided an in-wheel motor that can reduce the loss of energy. An electric vehicle driving device includes a first motor, a second motor, a speed change mechanism, a speed reducing mechanism, and a clutch device. A first planetary gear mechanism of the speed change mechanism is a single-pinion type planetary gear device. A second planetary gear mechanism of the speed change mechanism is a double-pinion type planetary gear device. The electric vehicle driving device operates so as to switch a first speed change state where the magnitudes of rotational forces of the first motor and the second motor are equal to each other and the directions of the rotational forces are opposite to each other, and a second speed change state where the rotational forces have the same magnitude and direction.

Abstract: An electric vehicle driving device 10 includes a first motor 11, a second motor 12, a first planetary gear mechanism 20, a second planetary gear mechanism 30, a clutch device 40, and a wheel bearing 50. The first planetary gear mechanism 20 is a planetary gear device of single pinion type. The second planetary gear mechanism 30 is a planetary gear device of double pinion type. The first motor 11 is connected to a first sun gear 21 and a second sun gear 31. The second motor 12 is connected to a first ring gear 24. The clutch device 40 is connected to a first carrier 23. A second carrier 33 is connected to the first ring gear 24. A second ring gear 34 is connected to the wheel bearing 50.

Abstract: A upper arm 4b of a suspension for a vehicle is constructed by: a casing 12 that is supported by the vehicle so as to be able to pivot in the up-down direction; a pair of screw shafts 20 that are supported by the casing 12 so as to be able to move only in the axial direction; a pair of screw nuts 21 that engage around the pair of screw shafts 20, and are supported by the casing so as only to be able to rotate; a worm reduction gear 14 that rotates the screw nuts 21; and a pair of link arms 29, where the base end sections respectively connect to the tip end sections of the pair of screw shafts 20 and the tip end sections respectively connect to knuckle 3 so as to be able to rotate around a shaft in the up-down direction of the vehicle. The screw shafts 20 are moved out in opposite directions from each other in the axial direction, which causes the opening angle of the pair of link arms 29a to change, and thus changes the overall length of the upper arm 4b in the width direction of the vehicle.

Abstract: There is provided an in-wheel motor that can reduce the loss of energy. An electric vehicle driving device includes a first motor, a second motor, a speed change mechanism, a speed reducing mechanism, and a clutch device. A first planetary gear mechanism of the speed change mechanism is a single-pinion type planetary gear device. A second planetary gear mechanism of the speed change mechanism is a double-pinion type planetary gear device. The electric vehicle driving device operates so as to switch a first speed change state where the magnitudes of rotational forces of the first motor and the second motor are equal to each other and the directions of the rotational forces are opposite to each other, and a second speed change state where the rotational forces have the same magnitude and direction.

Abstract: There are provided a hub bearing, a speed reduction mechanism, and an in-wheel motor, including an inner race portion which is fixed to a support mechanism, an outer race portion which is connected to a wheel, and a rolling element which is disposed between the inner race portion and the outer race portion, and the outer race portion includes an outer race member, a wheel flange, and a fixation mechanism. The end surface of the wheel flange away from the outer race member in a direction parallel to a rotation shaft extends to the rotation shaft in relation to the inner race portion in the radial direction of the rotation shaft.

Abstract: A communication device configured to receive content from a server via a network, comprises a storage unit configured to store content received from the server in a cache, a display unit configured to display the content stored in the storage unit, a control unit configured to switch connection to the network to one of a plurality of communication lines having different communication rates, and a setting unit configured to set the size of the content received from the server and the number of histories stored in the cache, in accordance with the communication line to which connection has been switched by the control unit.

Abstract: An electric vehicle driving device 10 includes a first motor 11, a second motor 12, a first planetary gear mechanism 20, a second planetary gear mechanism 30, a clutch device 40, and a wheel bearing 50. The first planetary gear mechanism 20 is a planetary gear device of single pinion type. The second planetary gear mechanism 30 is a planetary gear device of double pinion type. The first motor 11 is connected to a first sun gear 21 and a second sun gear 31. The second motor 12 is connected to a first ring gear 24. The clutch device 40 is connected to a first carrier 23. A second carrier 33 is connected to the first ring gear 24. A second ring gear 34 is connected to the wheel bearing 50.

Abstract: A display controller which displays an electronic book and enables a user to perform intuitive operations when switching between pages to be displayed. A CPU detects a cursor position on the most frontally-displayed one of a plurality of pages in response to a user operation. Further, the CPU extracts respective areas of shapes dependent on the detected cursor position, from an image representing the most frontally-displayed page and an image representing a reverse page with respect to the most frontally-displayed page. Then, the CPU draws the extracted areas on the screen.