A drive device having a main drive device, a gearing, a switchable clutch, at least one hydraulic pump, and a gearing output shaft is started with low wear by providing an auxiliary drive to drive the gearing output shaft independently of the main drive device. A work machine device includes the drive device and a work machine which can be started accordingly in a low-wear manner and which enables longer-term operation in the reverse direction of rotation. Corresponding methods which are also provided in connection with the drive device and the work machine device, enable low-wear starting and the elimination of undesired operating states.

A linear drive device includes: a motor; a speed-reducing transmission stage having: a pinion gear fixedly connected to an output shaft of the motor, and a transmission gear meshing with the pinion gear; a linear transmission stage configured to transform a rotational movement of the transmission gear into a linear movement of an output connecting rod, the output connecting rod being received in a sleeve member so as to only move linearly; a spiral trench arranged on the transmission gear; and a follower received in the spiral trench so as to be movable in the spiral trench. The follower is connected to the output connecting rod via a connector, and the connector is configured as a right-angle member.

A robot includes a first member, a second member that is provided so as to be movable around the first member, and a gear device that transmits driving force from one of the first member and the second member to the other. The gear device includes a contact portion where two surfaces come into contact with each other and a lubricant, which is disposed on the contact portion and of which a change rate of worked penetration caused by a worked stability test is within a range of 16% to +16% inclusive.

A multi-stage gear is provided with a planetary gear and a strain wave gear adjacent to the multi-stage gear, wherein a output of the planetary gear maintains a drive connection with a wave generator of the strain wave gear, and wherein the planetary gear is arranged at least partially radially within the strain wave gear. It is provided that the wave generator is mounted radially on a ring gear of the planetary gear.

In a continuously variable transmission, driving force from a drive source is transmitted via a path to establish a LOW mode. A large torque that is transmitted in the LOW mode passes through a first output switching mechanism. Since a countershaft is relatively rotatably disposed on an outer periphery of an input shaft, and the first output switching mechanism is disposed on the countershaft, the countershaft which transmits a large torque is disposed on an outer peripheral side of a double tube and supported directly by a transmission case, and the input shaft which transmits a relatively small torque is supported via the countershaft, thereby making it possible to support the first output switching mechanism with high rigidity without carrying out special reinforcement.

A gear mechanism for increasing torque includes: an input shaft; at least one intermediate shaft; where the at least one intermediate shaft is parallel to and offset from the input shaft; at least one force transmitting member connecting the input shaft and the at least one intermediate shaft; where the at least one force transmitting member is configured for rotating the at least one intermediate shaft in the same direction as the input shaft. The at least one intermediate shaft is mated with at least one fixed mating member and is rotatably connected to a rotatable support member. The support member is rotatable about the input shaft and connected to an output shaft.

A gear mechanism for increasing torque includes: an input shaft; at least one intermediate shaft; where the at least one intermediate shaft is parallel to and offset from the input shaft; at least one force transmitting member connecting the input shaft and the at least one intermediate shaft; where the at least one force transmitting member is configured for rotating the at least one intermediate shaft in the same direction as the input shaft. The at least one intermediate shaft is mated with at least one fixed mating member and is rotatably connected to a rotatable support member. The support member is rotatable about the input shaft and connected to an output shaft.

A transmission includes an input shaft, and a primary drive gear fixed to the input shaft. The primary gear has a first set of gear teeth. An idler gear is disposed in the transmission and has a second set of gear teeth in meshing engagement with the first set of gear teeth. The transmission also includes a transmission-pump drive gear having a third set of gear teeth in meshing engagement with the second set of gear teeth. The transmission-pump drive gear is configured to transmit power from the input shaft to a transmission pump. A power take-off unit is mounted to a case of the transmission and includes a first unit drive gear having a fourth set of gear teeth in meshing engagement with the second set of teeth. The a first unit drive gear is configured to transmit power from the idler gear to the power take-off.

A linear powered input device that utilizes linear input from a user and converts the linear input rotational energy to perform work. The linear input is generated by lever arms having a slotted attachment at a pivot point that allows a free end of the lever arms to move linearly rather than in an arcuate path. The lever arms are connected to a power transmission mechanism that wraps around one or more drive wheels having one-way bearings mounted on one or more output shafts. The output shafts can be connected to any type of auxiliary device to perform the desired work. Output wheels may be mounted on the output shafts and operatively connected by a transmission link that allows linear motion of any lever arm in any allowable direction to cause the output shaft to rotate in the same rotational direction so as to receive continuous input.

An object is to detect the pressing force of a tip driven unit. In the controller 22, a motor control circuit 85, a load change detection unit 86, a moving speed calculation unit 87 that calculates the moving speed of a rotating body 41, a pressing force detection unit 88 that obtains the pressing force of the rotating body 41 based on the moving speed which is calculated, a CPU 89, and an alarm 91 are disposed. The pressing force is obtained based on the cycle of load change by the joint 41a in which a front end and a rear end overlap with each other is formed in the rotating body 41.