Abstract: A twin clutch transmission for a large horsepower vehicle having a compact size and a high transmission efficiency is obtained. In a twin clutch transmission, there are provided an input shaft, an odd-numbered level speed change mechanism 30, an even-numbered level speed change mechanism 60, a synchronizing speed change mechanism 100, and an output mechanism 90. The speed change mechanisms 30 and 60 include transmission gear trains 32 and 62, main clutches 34 and 64 for selectively transmitting the powers of the transmission gear trains 32 and 62 to the transmission shafts 40 and 70. The synchronizing speed change mechanism 100 includes synchronizing gear trains 110 and 120 for coupling the rotation of the odd-numbered level transmission shaft 32 with the rotation of the even-numbered level transmission shaft 62, and synchronizing clutches 112 and 122 for selecting coupling by this synchronizing gear train.

Abstract: A twin-clutch type hybrid transmission is configured to include an input shaft 10, an odd-numbered stage shift mechanism 30, an even-numbered stage shift mechanism 60, a motor power mechanism 20, and an output mechanism 90. The shift mechanisms 30 and 60 include transmission gear trains 32 and 62, and main clutches 34 and 64, respectively, the main clutches 34 and 64 for selectively transmitting the power of the transmission gear train 32 and the power of the transmission gear train 62 to transmission shafts 40 and 70, respectively. The shift mechanisms 30 and 60 also include shift gear trains 41, 43, 45, 47, 72, 74, 76, and 78 provided to the transmission shafts 40 and 70 to transmit rotation to the output mechanism 90, respectively, and mechanical clutches 50, 52, 80, and 82 for selectively engaging the corresponding shift gear trains and the transmission shafts 40 and 70, respectively. As a result, a compact twin-clutch type hybrid transmission having high transmission efficiency can be obtained.

Abstract: A twin clutch type transmission that permits a quick shifting of a mechanical clutch without shock. Numbers of gear teeth of speed-change gears of odd and even-numbered gear ranges, which mesh with the same output gear, are made to be identical each other; gear ratios of input gear trains of even and odd-numbered gear ranges are configured so that the speed-change ratios between adjoining gear ranges will form a geometric progression; and gear ratios between speed-change gears of odd and even-numbered gear ranges are configured to be proportional to square of the common ratio. In speed-changing intermediate shaft on which the speed-change gear is installed is coupled with input shaft through friction clutch, and speeds of revolutions of the speed-change gear and the intermediate shaft on which such speed-change gear is installed are brought into synchronized state.

Abstract: A twin clutch transmission for a large horsepower vehicle having a compact size and a high transmission efficiency is obtained. In a twin clutch transmission, there are provided an input shaft, an odd-numbered level speed change mechanism 30, an even-numbered level speed change mechanism 60, a synchronizing speed change mechanism 100, and an output mechanism 90. The speed change mechanisms 30 and 60 include transmission gear trains 32 and 62, main clutches 34 and 64 for selectively transmitting the powers of the transmission gear trains 32 and 62 to the transmission shafts 40 and 70. The synchronizing speed change mechanism 100 includes synchronizing gear trains 110 and 120 for coupling the rotation of the odd-numbered level transmission shaft 32 with the rotation of the even-numbered level transmission shaft 62, and synchronizing clutches 112 and 122 for selecting coupling by this synchronizing gear train.

Abstract: Provided is a track car drive system, which is assisted by a generator motor so that it may attain a gear array for equalizing the number of speed range and the gear ratios at the individual gears as a transmission for the forward speed and the backward speed and which can be combined with the generator motor. A transmission (15) for receiving the output of an engine (14) at an input shaft (30) is constituted by combining a forward range (31) and a backward range (32) with two intermediate shafts (41 and 42) having different speed ranges (51 to 54) between themselves and an output shaft (45). By shifting/fastening a first clutch (43) or a second clutch (44) selectively, the rotation of either the forward range (31) or the backward range (32) is transmitted to either of the intermediate shafts (41 and 42). When one of the speed ranges (51 to 54) is selected, the same gear number and gear ratio are taken no matter whether the track car might run forward or backward.

Abstract: A twin clutch type transmission that permits a quick shifting of a mechanical clutch without shock. Numbers of gear teeth of speed-change gears of odd and even-numbered gear ranges, which mesh with the same output gear, are made to be identical each other gear ratios of input gear trains of even and odd-numbered gear ranges are configured so that the speed-change ratios between adjoining gear ranges will form a geometric progression; and gear ratios between speed-change gears of odd and even-numbered gear ranges are configured to be proportional to square of the common ratio. In speed-changing intermediate shaft on which the speed-change gear is installed is coupled with input shaft through friction clutch, and speeds of revolutions of the speed-change gear and the intermediate shaft on which such speed-change gear is installed are brought into synchronized state.