Abstract: A powered landing gear includes a housing member and a telescoping leg member connected with the housing member, an internal gear assembly located within the housing member is configured to extend and retract the leg member. A shaft extends into the housing member and is connected with the internal gear assembly, where the internal gear assembly includes a ring gear arranged to rotate about an axis that is transverse to the telescopic orientation of the leg member with the internal gear assembly configured to operate in a high speed setting and a low speed setting, and with the internal gear assembly automatically shifting from the high speed setting to the low speed setting. A drive system is attached to the housing member and includes a drive motor and a drive gear, with the drive motor configured to operatively drive the shaft via the drive gear.

Abstract: In a vehicle drive device, a response to a range change request, during which the drive wheels are rotated in a low or high range, can be smoothly and quickly completed without using a synchronous engaging mechanism. When the range change is requested when the drive wheels are rotated in the low range or in the high range, the control devices disengage a clutch sleeve from a currently engaged gear piece so as to establish a neutral range, and control an output rotational speed of the motor generator such that a difference between an input rotational speed and an output rotational speed of the transmission mechanism is set to be zero, or be equal to or less than a predetermined value. After that, the control devices cause a connection processor to slide the clutch sleeve to be connected to a connection target gear piece.

Abstract: A 7-speed transmission for a motor vehicle, in particular for a sports car, includes an input or primary shaft, an output or secondary shaft, a first, a second, a third, a fourth, a fifth, a sixth and a seventh forward speed, as well as a reverse speed. In order to obtain a compact constructional design with a small transversal size and allow a sporty drive mode in the upshift from the first to the sixth speed, in which the shift process occur in an overlapping manner and almost without any interruption of the drive force, the eight speeds are combined in pairs into four shift groups, two of the four shift groups are arranged on the input or primary shaft and two on the output or secondary shaft, respectively, and at least between the first speed and the sixth speed adjacent speeds are arranged in different shift groups.

Abstract: A coupling device is provided with a gearshift sleeve for a gearshift transmission. The gearshift sleeve via a first inner toothing optionally couples a first or second coupling gear rim of a first or second toothed gear wheel to an outer toothing of a hub body. The gearshift sleeve comprises a second inner toothing, with which the gearshift sleeve can be brought into engagement with the second coupling gear rim of the second toothed gear wheel and simultaneously via the first inner toothing with the first coupling gear rim of the first toothed gear wheel subject to freewheeling of the hub body.

Abstract: In a vehicle drive device, a response to a range change request, during which the drive wheels are rotated in a low or high range, can be smoothly and quickly completed without using a synchronous engaging mechanism. When the range change is requested when the drive wheels are rotated in the low range or in the high range, the control devices disengage a clutch sleeve from a currently engaged gear piece so as to establish a neutral range, and control an output rotational speed of the motor generator such that a difference between an input rotational speed and an output rotational speed of the transmission mechanism is set to be zero, or be equal to or less than a predetermined value. After that, the control devices cause a connection processor to slide the clutch sleeve to be connected to a connection target gear piece.

Abstract: A 7-speed transmission for a motor vehicle, in particular for a sports car, includes an input or primary shaft, an output or secondary shaft, a first, a second, a third, a fourth, a fifth, a sixth and a seventh forward speed, as well as a reverse speed. In order to obtain a compact constructional design with a small transversal size and allow a sporty drive mode in the upshift from the first to the sixth speed, in which the shift process occur in an overlapping manner and almost without any interruption of the drive force, the eight speeds are combined in pairs into four shift groups, two of the four shift groups are arranged on the input or primary shaft and two on the output or secondary shaft, respectively, and at least between the first speed and the sixth speed adjacent speeds are arranged in different shift groups.

Abstract: There is provided a vehicle transmission including a transmission input, a transmission output, and a main shaft and a countershaft, which together form a plurality of transmission ratios for providing different gears, wherein the countershaft can be shifted by means of at least one or at least two parallel gear ratios that are optionally shiftable in drive connection with the transmission input. The vehicle transmission further includes a range change transmission, comprising at least two range-change unit transmissions that are different from one another, by means of which the main shaft can be shifted optionally into a drive connection with the transmission output, wherein a performance interface for connecting an electric motor is provided in direction of the propulsion power flow from the transmission input to the transmission output downstream of the countershaft and upstream of the range change transmission.

Abstract: The invention relates to a power transmission mechanism having a dog clutch for freely connecting and disconnecting power transmission between a first rotor and a second rotor on a common rotational shaft. The dog clutch has a plurality of dog jaws in one of the rotors and has, in the other rotor, a plurality of recess portions or other dog jaws to which the former dog jaws can be engaged. Taper surfaces are formed to an end face of each of the former dog jaws in the axial direction and each of wall surface portions formed between the recess portions or an end face of each of the latter dog jaws.

Abstract: In a shifting device comprising a shiftable double member arrangement and a shifting element for shifting the double member arrangement, the shifting element is arranged at least partially at a side of and next to, the double member arrangement.

Abstract: A transmission for a working machine including a drive transmission mechanism and a working transmission mechanism operated by swinging a shift lever is provided. The drive transmission mechanism has a key-sliding transmission mechanism axially mounted on a drive shaft. The key-sliding transmission mechanism causes a selected one of a plurality of gears rotatably mounted on the drive shaft and the drive shaft to rotate together to transmit power to drive wheels.

Abstract: A transmission shift system for idler wheels comprising at least one actuating device that actuates a respective sliding sleeve non-rotatably connected with a main shaft in order to bring the sliding sleeve to positive fit with an idler wheel to be shifted. It is provided that the shiftable idler wheel is disposed upon the main shaft directly juxtaposed in axial direction and that the respective actuating devices are provided as unit on the main shaft outside the group of idler wheels, each actuating device being connected with the respective sliding sleeve via at least one connecting element extending along the main shaft.

Abstract: A dual-gearshift forward backward control mechanism installed in a remote control toy car to control forward/backward motion and high/low speed gearshift by means of power transmission through a set of gears and two idle gears and the shifting of a switching gear on the polygonal middle section of the output shaft of the mechanism between two of the gears and the effect of the centrifugal force of a swivel block at one of the gears.

Abstract: A power take off drive train for an agricultural tractor includes at least one input shaft and an output shaft that are rotatably mounted in a transmission casing, wherein the gear train provides for the output shaft to be rotated at one of three selected speeds, one of the at least one input shafts mounting first and second input gear wheels and a selector, the gear wheels being free to rotate on the shaft, and wherein the selector is mounted on the shaft for rotation therewith, and to slide axially along the shaft to engage with one of the first and second gear wheels transmitting torque thereto, and wherein the output shaft mounts first and second output gear wheels fixed for rotation therewith, the first and second output gear wheels being in driving engagement with the first and second input gear wheels respectively, and wherein the drive train further comprises a third output gear wheel that engages with a third input gear mounted on an input shaft mounted in the transmission casing, wherein drive to th

Abstract: A driven gear G3b for a forward second gear G3 which is obtained by a hydraulic clutch C3 on a second input shaft 5 is disposed contiguous with a driven gear G4b for a first gear G4. A spacer collar 9 is provided on an output shaft 6 so as to be positioned between a selector hub 8a and the driven gear G3b for the second gear G3, and the driven gear G4b for the first gear G4 is rotatably supported on the spacer collar 9.

Abstract: A power take off drive train for an agricultural tractor, comprises at least one input shaft and an output shaft, said shafts being rotatably mounted in a transmission casing, wherein the said gear train provides for the output shaft to be rotated at one of three selected speeds, one of the at least one input shafts mounting first and second input gear wheels and a selector, the gear wheels being free to rotate on said shaft, and wherein the selector is mounted on the shaft for rotation therewith, and to slide axially along side shaft to engage with one of said first and second gear wheels transmitting torque thereto, and wherein said output shaft mounts first and second output gear wheels fixed for rotation therewith, the said first and second output gear wheels being in driving engagement with said first and second input gear wheels respectively, and wherein the drive train further comprises a third output gear wheel, which gear wheel engages with a third input gear wheel mounted on an input shaft mounted i

Abstract: A machine tool transmission for use in changing the torque and speed of a spindle rotatingly driven by an electric motor comprises a transmission casing, input and output shafts mounted on the transmission casing in a spaced-apart, parallel relationship for rotation at different speeds from each other, a movable gear axially displaceably fitted to the input shaft for sliding movement between first and second shift positions, first and second stationary gears fixedly secured to the output shaft for rotation in unison therewith, and a gear shifting device for causing the movable gear to be shifted either into the first shift position so that the movable gear can be meshed with the first stationary gear or the second shift position so that the movable gear can be in meshing engagement with the second stationary gear.

Abstract: A landing gear for semitrailers includes a two-speed single reduction gear assembly having fewer, smaller, and simpler parts, resulting in a compact single reduction gear assembly and cost efficient landing gear unit with a unique clutch-shifting mechanism to provide for shifting from one ratio to another. The single reduction gear assembly is disposed on and about vertically offset input and output shafts further resulting in an easy to crank and shift landing gear unit capable of achieving standard crank handle turn to vertical leg travel distance ratios. The low gear or low speed ratio of the landing gear unit can be varied within a broad range during manufacture, if desired, generally without increasing the overall size or complexity of the two-speed single reduction gear assembly. The landing gear can further include a universal mounting feature and is durable and simple to use.

Abstract: A shift key mechanism using a lateral pivot riding on milled ridges on the outer surface of a shift shaft in order to index a spring biased shift key to a gear location.

Abstract: A power takeoff mechanism for a farm tractor with two interchangeable power takeoff shafts which can be driven at different speeds and are connected by means of annular flanges of different diameters with a driving flange on the end of an output shaft wherein a pawl is pivoted near the driving flange and is connected to a clutch lever of the gear shifting mechanism whereby the pawl must be pivoted to a predetermined position when one of the power takeoff shafts is installed, thereby preventing the clutch lever from being operated in a manner to select an inappropriate speed for the installed power takeoff shaft.

Abstract: A power transmission for a four-wheel drive vehicle includes a change-speed gearing mounted within a transmission casing, and an intermediate differential unit assembled within the transmission casing and drivingly connected to an output shaft of the change-speed gearing to be applied with a driving torque through the change-speed gearing for transmitting the driving torque to a first drive shaft for front-wheel drive and to a second drive shaft for rear-wheel drive.

Abstract: A fine/coarse data selector apparatus for aircraft flight control systems and instruments is manually adjustable in either an incremental fine mode or an uninterrupted slew mode by means of a high resolution gear change clutch means which eliminates any gear mesh alignment and resulting undesired signal transducer transients associated therewith.

Abstract: A transfer device associated with a power transmission unit includes an input shaft for connection to an output shaft of the transmission unit, a first output shaft axially aligned with the input shaft, a second output shaft located parallely apart from the input and first output shafts, a change-speed gearing arranged among the input shaft and the first and second output shafts, and a selector gear unit assembled with the change-speed gearing for selectively completing low and high speed gear trains. In the transfer device, a second gear unit is assembled adjacent to the first-named selector gear unit on a common axis to selectively provide the rear wheel drive and the front and rear wheel drive.

Abstract: The invention contemplates a multiple-speed transmission for coupling an engine to the impeller of a marine jet drive, such that an overdrive connection powers the jet drive under operating conditions up to a predetermined upper limit of cruising speeds and such that a reduced drive, for example a direct-drive connection, is automatically established for jet-drive speeds in excess of the cruising conditions. A simple illustrative transmission is described in detail, involving use of transmission lubricant as the actuating medium employed for hydraulic actuation of the engaged condition of the overdrive, all without impairing full circulation of the lubricant to and throughout the transmission, regardless of the engaged or disengaged condition of the overdrive.