Abstract: A beam profile measurement (BPM) system is described including a BPM phantom including a tank to house liquid, a dosimeter disposed in the tank to detect ionization of a radiation beam emitted from a linear accelerator (LINAC), and a positioning device to move the dosimeter in a vertical direction. The BPM system also includes a BPM controller to operably couple to the BPM phantom and the LINAC. A method is described including positioning, using a BPM controller, a dosimeter of the BPM phantom in a first location, positioning, using the BPM controller, the LINAC in a second location, performing, using the BPM controller, a first movement of the LINAC from the second location to a third location, emitting a radiation beam from the LINAC during the first movement, and performing, via the dosimeter, an ion measurement of the radiation beam during the emitting.

Abstract: A beam profile measurement (BPM) system is described including a BPM phantom including a tank to house liquid, a dosimeter disposed in the tank to detect ionization of a radiation beam emitted from a linear accelerator (LINAC), and a positioning device to move the dosimeter in a vertical direction. The BPM system also includes a BPM controller to operably couple to the BPM phantom and the LINAC. A method is described including positioning, using a BPM controller, a dosimeter of the BPM phantom in a first location, positioning, using the BPM controller, the LINAC in a second location, performing, using the BPM controller, a first movement of the LINAC from the second location to a third location, emitting a radiation beam from the LINAC during the first movement, and performing, via the dosimeter, an ion measurement of the radiation beam during the emitting.

Abstract: A parking lock device is mounted on a transmission of a vehicle. The transmission includes a housing and an output shaft. The park lock device includes a parking pawl including a pawl portion, a first coupling member coupled to a rear end portion of the output shaft of the transmission, and a second coupling member coupled directly to the first coupling member, the second coupling member being supported by the housing of the transmission through a bearing and being provided with an extended shaft portion formed in a same shape as the rear end portion of the output shaft of the transmission, and a coupling coupled to the extended shaft portion of the second coupling member.

Abstract: A parking lock device mounted on a transmission without modifying the constitution of the base transmission as much as possible and is constituted in a compact size. A first coupling member 11 is spline-fitted and fixed to a rear end portion of an output shaft 1 of the transmission by using a fixing nut 5, and a second coupling member 12 is integrally coupled to the first coupling member 11. A continuously indented portion 11C is formed along the outer circumference of the first coupling member 11. In a park locked state, a pawl portion 31A of a parking pawl 31 arranged on the lower side is brought in mesh with the intended portion 11C. The parking lock device is mounted on the rear end portion of the output shaft 1, and does not require the basic portion of the transmission to be modified. The second coupling member 12 has an extended shaft portion 12C formed in the same shape as the rear end portion of the output shaft 1.

Abstract: Provision of a new gear parking brake of a power transmission device that enables the simple achievement of in-gear parking. A gear parking brake (31) of a power transmission device has a fluid coupling (4) positioned on the engine side and a friction clutch (5) positioned on the transmission (2) side, arranged in series. This gear parking brake (31) is provided with a brake mechanism on an input shaft (3) of the transmission (2), which activates at the time of parking. Even though the friction clutch (5) becomes disengaged, the rotation of the input shaft (3) of the transmission (2) is restricted, thereby enabling in-gear parking.

Abstract: In a fluid coupling with a baffle plate protruding on the side of an inner peripheral surface of a circulating circuit, a clutch chamber is defined between a back of a turbine impeller and a side cover covering the back of the impeller, to communicate with an outer periphery of the circulating circuit. The clutch chamber is divided by a clutch piston into an inner chamber portion on the side of the turbine impeller and an outer chamber portion on the side of the side cover. The clutch piston is axially movably connected to the turbine impeller, thereby constituting a lock-up clutch, so that a first oil passage leading to the outer chamber portion and a second oil passage leading to an inner periphery of the circulating circuit are put into alternate communication with a discharge portion of an oil pump and with an oil reservoir in a switched manner.

Abstract: It is an object of the present invention to provide a rotation matching mechanism for an automatic clutch type transmission which makes it possible to obtain superior friction characteristics in a rotation matching braking device that synchronizes the gears of the transmission during up-shifting.

Abstract: A device for changing the speeds of the front and rear wheels in a four-wheel-drive vehicle including a continuously variable speed-changing mechanism for the front wheels, which changes the input rotational speed and outputs it to the front wheel drive shafts, and a continuously variable speed-changing mechanism for the rear wheels, which changes the input rotational speed and outputs it to the rear wheel drive shafts. The device for changing the speeds of the front wheels and the rear wheels comprises a detector means for detecting the operation conditions of the vehicle, a steering angle sensor for detecting the steering angle of the vehicle, and a controller for variably controlling the speeds of the continuously variable speed-changing mechanisms based on the operation conditions of the vehicle.

Abstract: Provision of a new gear parking brake of a power transmission device that enables the simple achievement of in-gear parking.

Abstract: A power driving device comprises a fluid coupling operated by an engine, a wet-type friction clutch disposed between said fluid coupling and a transmission, and a fluid operation means for circulating the operation fluid through said fluid coupling and for feeding the operation fluid to the wet-type friction clutch. In the pump housing of the fluid operation means, there is disposed a hydraulic pump that works as a source of hydraulic pressure, there are formed passages for communicating said hydraulic pump with said fluid coupling and with said wet-type friction clutch, and there are disposed a relief valve for adjusting the pressure of the operation fluid blown out from the hydraulic pump, a control valve for changing over the passage communicated with the fluid coupling and a control valve for changing over the passage communicated with the wet-type friction clutch.

Abstract: A device for changing the speeds of the front and rear wheels in a four-wheel-drive vehicle, which is equipped with a continuously variable speed-changing mechanism for the front wheels which changes the input rotational speed and outputs it to the front wheel drive shafts and a continuously variable speed-changing mechanism for the rear wheels which changes the input rotational speed and outputs it to the rear wheel drive shafts. The device for changing the speeds of the front and rear wheels comprises a detector means for detecting the operation conditions of the vehicle and a controller for variably controlling the speeds of said continuously variable speed-changing mechanism for the front wheels and of said continuously variable speed-changing mechanism for the rear wheels based on the operation conditions of the vehicle detected by said detector means.

Abstract: In a fluid coupling with a baffle plate protruding on the side of an inner peripheral surface of a circulating circuit, a clutch chamber is defined between a back of a turbine impeller and a side cover covering the back of the impeller, to communicate with an outer periphery of the circulating circuit. The clutch chamber is divided by a clutch piston into an inner chamber portion on the side of the turbine impeller and an outer chamber portion on the side of the side cover. The clutch piston is axially movably connected to the turbine impeller, thereby constituting a lock-up clutch, so that a first oil passage leading to the outer chamber portion and a second oil passage leading to an inner periphery of the circulating circuit are put into alternate communication with a discharge portion of an oil pump and with an oil reservoir in a switched manner.

Abstract: A device for changing the speeds of the front and rear wheels in a four-wheel-drive vehicle, which is equipped with a continuously variable speed-changing mechanism for the front wheels which changes the input rotational speed and outputs it to the front wheel drive shafts and a continuously variable speed-changing mechanism for the rear wheels which changes the input rotational speed and outputs it to the rear wheel drive shafts. The device for changing the speeds of the front and rear wheels comprises a detector means for detecting the operation conditions of the vehicle and a controller for variably controlling the speeds of said continuously variable speed-changing mechanism for the front wheels and of said continuously variable speed-changing mechanism for the rear wheels based on the operation conditions of the vehicle detected by said detector means.

Abstract: A power driving device comprises a fluid coupling operated by an engine, a wet-type friction clutch disposed between said fluid coupling and a transmission, and a fluid operation means for circulating the operation fluid through said fluid coupling and for feeding the operation fluid to the wet-type friction clutch. In the pump housing of the fluid operation means, there is disposed a hydraulic pump that works as a source of hydraulic pressure, there are formed passages for communicating said hydraulic pump with said fluid coupling and with said wet-type friction clutch, and there are disposed a relief valve for adjusting the pressure of the operation fluid blown out from the hydraulic pump, a control valve for changing over the passage communicated with the fluid coupling and a control valve for changing over the passage communicated with the wet-type friction clutch.

Abstract: A continuous variable transmission is disclosed wherein the planetary gearset arranged downstream of the toroidal transmission mechanism is made simple in construction to reduce the overall axial length. To cope with this, a first planetary gearset arranged downstream of the toroidal transmission mechanism is comprised of a first carrier, a sun gear connected to an output disk, and a ring gear. The first carrier supports thereon a dual pinion having a first and second planet-gears. The ring gear may come in engagement with the second planet-gear through a first clutch for low-range operation. The combined construction of the first and second planetary gearsets contributes to the reduction of the axial length in the gearing mechanism. The second clutch for high-range operation may hold the second ring gear to a stationary case.

Abstract: A gear transmission for a vehicle in accordance with the present invention forms a first speed change range by disposing a back range gear and a second range gear on an output shaft adjacent to each other, disposing a back idle gear meshing always with the back range gear and a first range gear on a coaxial rotary shaft, engaging always the back idle gear with a gear disposed on an input shaft and engaging the first range gear with the second range gear on the input shaft. Accordingly, the speed change range of each of the first and second and back ranges can be constituted by two gear trains and the length in the axial direction can be reduced as a whole. Moreover, since the back range gear is always engaged with the back idle gear and the back idle gear is always engaged with the gear disposed on the input shaft, the angle of the face advance can be increased, chamfering of gears for sliding mesh becomes unnecessary and the gear strength of the back range gear train can be reinforced.

Abstract: In an automatic transmission for obtaining a necessary transmission gear ratio by disposing a plurality of gear trains on an input shaft 8 and an output shaft 19 which are parallel to each other, the present invention disposes two electromagnetic multiple-disk clutches C.sub.1 (or C.sub.2) and C.sub.5 (transmitting torque varying means) between the input shaft 8 and the output shaft 19 so that a torque is borne by the electromagnetic multiple-disk clutch C.sub.5 to make a shift operation at the time of shift-up and the torque is borne by the electromagnetic multiple-disk clutches C.sub.1 (or C.sub.2) and C.sub.5 to make the shift operation at the time of shiftdown. Accordingly, the torque from the engine can always be kept applied to the output shaft 19 during the gear change operation, and the occurrence of non-transmission of torque as well as the shock resulting from clutch connection can be prevented.

Abstract: In a driving apparatus for a four-wheel drive vehicle in accordance with the present invention, a multiple disc clutch is incorporated between a front wheel driving system and a rear wheel driving system, a hydraulic chamber is formed in a fixed casing supporting rotatably a front differential case in the front wheel driving system and a clutch piston is disposed in the hydraulic chamber. Bearings are disposed between the clutch piston and the front differential case in order to enable them to rotate relatively. Hydraulic pressure generated from hydraulic pressure generation means disposed outside each driving system is caused to act on the clutch piston so that the multiple disc clutch is operated by the press force of the clutch piston through the front differential case and the differential operation of the front and rear wheel is restricted in accordance with the operation force of the multiple disc clutch.