A landing gear assembly includes a leg assembly including a first portion and a second portion, wherein the first and second portions of the leg assembly telescopingly engage one another, a gear assembly operably coupled to the first and second leg portions and configured to telescopingly move the first and second leg portions with respect to one another, and a drive assembly operably coupled to the gear assembly, and including a planetary gear arrangement configured to drive the gear assembly at a first speed and at a second speed that is different than the first speed, and a motor configured to drive the planetary gear assembly.

A landing gear assembly includes a leg assembly including a first portion and a second portion, wherein the first and second portions of the leg assembly telescopingly engage one another, a gear assembly operably coupled to the first and second leg portions and configured to telescopingly move the first and second leg portions with respect to one another, and a drive assembly operably coupled to the gear assembly, and including a planetary gear arrangement configured to drive the gear assembly at a first speed and at a second speed that is different than the first speed, and a motor configured to drive the planetary gear assembly.

Aspects herein relate to using a three or more points to control the angular orientation of a structure via three or more jacks, and then stabilizing the structure via one or more stabilizers. In some aspects, the foregoing structure may include, for example, a motor home, recreational vehicle, travel trailer or fifth wheel trailer.

Aspects herein relate to using a three or more points to control the angular orientation of a structure via three or more jacks, and then stabilizing the structure via one or more stabilizers. In some aspects, the foregoing structure may include, for example, a motor home, recreational vehicle, travel trailer or fifth wheel trailer.

An apparatus to lower or raise landing gear on a trailer or semi-truck comprising a tool having a center body with a coupling device and a power coupling that is selectively engageable with a rotatable projection on the landing gear. The power coupling is operatively engaged with a worm gear within the center body and thereby with the coupling device. A powered drill is engaged with the power coupling and is actuated to rotate the power coupling in a first direction or in a second direction. The power coupling rotates the worm gear, which rotates the coupling device and thereby the projection on the landing gear. Rotation of the projection in one direction lowers the landing gear. Rotation of the projection in the opposite direction raises the landing gear. The user selects to raise or lower the landing gear simply by causing the drill chuck to rotate clockwise or counter-clockwise.

A motorized lifting system for use on a semi-trailer. The lifting system may comprise a lifting unit capable of mounting to a jack on the semi-trailer, allowing the lifting unit to raise and lower the dolly legs of the jack. The lifting unit may comprise a motor and a series of sprockets and chains connecting the motor to a drive shaft that mounts to a rod of the jack, such that turning the rod raises or lowers the dolly legs.

A torque load binder for changing tension in a chain or strap securing a load to a vehicle or support surface. The load binder includes a housing with an internal gear mechanism and a connector mechanism operatively engaged with the gear mechanism and extending outwardly from the housing. A high speed first driveshaft and a lower speed second driveshaft on the load binder are selectively individually actuated to effect movement between first and second end linkages of the connector mechanism. The first driveshaft effects movement between the first and second end linkages at a first speed and the second driveshaft effects movement between the end linkages at a lower second speed. Rotation of either of the first or second driveshafts actuates the connector mechanism, changing the distance between the first and second end linkages, and thereby changing the tension in the tie-down.

A torque load binder for changing tension in a chain or strap securing a load to a vehicle or support surface. The load binder includes a housing with an internal gear mechanism and a connector mechanism operatively engaged with the gear mechanism and extending outwardly from the housing. A high speed first driveshaft and a lower speed second driveshaft on the load binder are selectively individually actuated to effect movement between first and second end linkages of the connector mechanism. The first driveshaft effects movement between the first and second end linkages at a first speed and the second driveshaft effects movement between the end linkages at a lower second speed. Rotation of either of the first or second driveshafts actuates the connector mechanism, changing the distance between the first and second end linkages, and thereby changing the tension in the tie-down.

A system for monitoring the use of one or more lift devices used for raising or lowering the landing gear of a semi-trailer. A data management module within the system includes a suite of features which are used to take received lift device data and convert it into an easily understood graphical representation. Each lift device is configured to transmit data related to its operation to the data management module of the system which then displays the lift device data as a graphical representation and/or data set according to the type of user using the system. The lift device data which is displayed to the user can include an amount of torque applied to the lift device, the number of times the lift device has been activated, or any other data point which gives the user an overall snapshot of the performance of the lift device(s) under their control.

A system for monitoring the use of one or more lift devices used for raising or lowering the landing gear of a semi-trailer. A data management module within the system includes a suite of features which are used to take received lift device data and convert it into an easily understood graphical representation. Each lift device is configured to transmit data related to its operation to the data management module of the system which then displays the lift device data as a graphical representation and/or data set according to the type of user using the system. The lift device data which is displayed to the user can include an amount of torque applied to the lift device, the number of times the lift device has been activated, or any other data point which gives the user an overall snapshot of the performance of the lift device(s) under their control.