Disclosed is a control method of a lifting apparatus for a highly-mounted device. The control method includes (a) outputting a descending signal in a state where the main body and the lifting body are coupled; (b) determining whether the lifting body is normally released downward from the main body according to the descending signal; and (c) stopping the driving motor or executing the step (a) again when the lifting body is not normally released downward, wherein in the step (b), it is determined whether the lifting body is normally released downward from the main body by checking whether a weight of the lifting body is applied to the wire rope.

Disclosed is a control method of a lifting apparatus for a highly-mounted device. The control method includes (a) outputting a descending signal in a state where the main body and the lifting body are coupled; (b) determining whether the lifting body is normally released downward from the main body according to the descending signal; and (c) stopping the driving motor or executing the step (a) again when the lifting body is not normally released downward, wherein in the step (b), it is determined whether the lifting body is normally released downward from the main body by checking whether a weight of the lifting body is applied to the wire rope.

Disclosed is a package delivery mechanism (PDM) of an unmanned aerial vehicle (UAV). The PDM includes a gravity activated locking mechanism to lock and unlock a package attached to the UAV based on the weight of the package. When the package is attached to suspension means of the UAV that lowers the package to the ground from the UAV, the locking mechanism automatically engages with the package and keeps the package locked to the suspension means, due to the weight of the package. When the package is lowered and reaches on the ground, the weight of the package is offloaded from the suspension means, which enables the locking mechanism to be disengaged, thereby releasing the package. The PDM includes a severing module to sever the suspension means from the UAV.

An apparatus, system, and related methods for holding and maneuvering an industrial vehicle spare tire include a tire support positioned on an industrial vehicle. An industrial vehicle tire is removably securable to the tire support, wherein the tire support has at least two independently adjustable threaded members for controlling engagement of the tire support and the industrial vehicle tire. A winch is positioned proximate to the gate of the industrial vehicle. At least one pulley is positioned above the tire support, wherein at least one winch cable is connected between the winch and the at least one pulley.

An apparatus, system, and related methods for holding and maneuvering an industrial vehicle spare tire include a tire support positioned on an industrial vehicle. An industrial vehicle tire is removably securable to the tire support, wherein the tire support has at least two independently adjustable threaded members for controlling engagement of the tire support and the industrial vehicle tire. A winch is positioned proximate to the gate of the industrial vehicle. At least one pulley is positioned above the tire support, wherein at least one winch cable is connected between the winch and the at least one pulley.

A seating system according to an exemplary aspect of the present disclosure includes, among other things, a riser including a tiltable deck. Another seating system according to the present disclosure includes, among other things, a drive system for moving a riser. The drive system includes a sprocket configured to engage a belt.

A seating system according to an exemplary aspect of the present disclosure includes, among other things, a riser including a tiltable deck. Another seating system according to the present disclosure includes, among other things, a drive system for moving a riser. The drive system includes a sprocket configured to engage a belt.

A winch utility includes a main body, the main body including a shell, the shell defining an enclosure; an electric motor mounted to and contained within at least a portion of the shell; a controller attached to an inner part of the shell and in electronic communication with the electric motor; and a bobbin coupled to the electric motor; and a cable coupled to the bobbin at a bobbin end, the cable defining a terminal end distal to the bobbin end, the cable arranged to be coiled around the bobbin by rotation of the electric motor, wherein the terminal end of the cable is arranged outside of the shell, wherein the controller is configured to instruct the electric motor.

The invention relates to a rope-lowering device for lowering persons from a building or the like, comprising: an axle arranged to rotate about its longitudinal axis; a first reel connected or connectable to the axle; a second reel connected or connectable to the axle; a brake connected to the axle, which brake is configured to provide a braking force to the axle independent of a direction of rotation; a first rope connected to the first reel to be suspended from the first reel; and a second rope connected to the second reel to be suspended from the second reel, wherein the rope-lowering device is configured such that when both the first and second reels are connected to the axle, paying out one of the first and second rope will automatically cause the other one of the first and second rope to be hauled in.

The invention relates to a rope-lowering device for lowering persons from a building or the like, comprising: an axle arranged to rotate about its longitudinal axis; a first reel connected or connectable to the axle; a second reel connected or connectable to the axle; a brake connected to the axle, which brake is configured to provide a braking force to the axle independent of a direction of rotation; a first rope connected to the first reel to be suspended from the first reel; and a second rope connected to the second reel to be suspended from the second reel, wherein the rope-lowering device is configured such that when both the first and second reels are connected to the axle, paying out one of the first and second rope will automatically cause the other one of the first and second rope to be hauled in.