A stair assembly for a work vehicle includes a stepped support and an actuator. The stepped support has one or more steps mountable to a side of the work vehicle. The stepped support is moveable by the actuator between a retracted orientation, in which the stepped support has a first length between first and second ends, and an extended orientation, in which the support structure has a greater length. When mounted to the work vehicle, the second end of the stepped support is at an outward lowered position in the extended orientation with respect to the work vehicle relative to an inward raised position of the second end of the stepped support in the retracted orientation.

A stair assembly for a work vehicle includes a stepped support and an actuator. The stepped support has one or more steps mountable to a side of the work vehicle. The stepped support is moveable by the actuator between a retracted orientation, in which the stepped support has a first length between first and second ends, and an extended orientation, in which the support structure has a greater length. When mounted to the work vehicle, the second end of the stepped support is at an outward lowered position in the extended orientation with respect to the work vehicle relative to an inward raised position of the second end of the stepped support in the retracted orientation.

A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.

In one embodiment of the invention, a ladder and method for removably mounting the ladder on a recreational vehicle is disclosed. The ladder may be removed and used as a standard step ladder. The ladder includes a top end and two pairs of legs extending downward from the top end. At least one of the pairs of legs is pivotally mounted to the top end, and a pivoting limiting mechanism is provided to allow the pairs of legs to fold adjacent one another or unfold to a use position as a step ladder. An upper mounting arrangement is attached to the recreational vehicle. The arrangement includes two free ends extending downwardly therefrom; and the top end of the ladder includes receivers for receiving free ends of the upper mounting arrangement.

In one embodiment of the invention, a ladder and method for removably mounting the ladder on a recreational vehicle is disclosed. The ladder may be removed and used as a standard step ladder. The ladder includes a top end and two pairs of legs extending downward from the top end. At least one of the pairs of legs is pivotally mounted to the top end, and a pivoting limiting mechanism is provided to allow the pairs of legs to fold adjacent one another or unfold to a use position as a step ladder. An upper mounting arrangement is attached to the recreational vehicle. The arrangement includes two free ends extending downwardly therefrom; and the top end of the ladder includes receivers for receiving free ends of the upper mounting arrangement.

An extendable ladder with hinge brackets specifically designed for the purpose of a person to have easier and safer access to a recreational vehicle roof. RV's have a permanently attached ladder on the rear of the vehicle that has to be climbed vertically, straight up which defies gravity. The hand rails and steps are small therefore making people feel very insecure and unsafe when climbing it. This invention overcomes that obstacle by giving people a firm ladder that reaches to the ground at an angle which makes it very easy to climb. The hinge bracket design creates a pivot affect that allows the two section extendable ladder to swing out at the bottom and extend downward to the ground, then the lower ladder can slide back up into the ladder rails and is positioned back against the RV.

An extendable ladder with hinge brackets specifically designed for the purpose of a person to have easier and safer access to a recreational vehicle roof. RV's have a permanently attached ladder on the rear of the vehicle that has to be climbed vertically, straight up which defies gravity. The hand rails and steps are small therefore making people feel very insecure and unsafe when climbing it. This invention overcomes that obstacle by giving people a firm ladder that reaches to the ground at an angle which makes it very easy to climb. The hinge bracket design creates a pivot affect that allows the two section extendable ladder to swing out at the bottom and extend downward to the ground, then the lower ladder can slide back up into the ladder rails and is positioned back against the RV.

An aircraft comprising an opening for accessing a compartment and a ladder. The aircraft comprises at least one support. The ladder comprises at least one fastener element connected to a support by a removable connection comprising a pivot axis.

An aircraft comprising an opening for accessing a compartment and a ladder. The aircraft comprises at least one support. The ladder comprises at least one fastener element connected to a support by a removable connection comprising a pivot axis.

A ladder loading system includes a base frame and a stowage frame, wherein the stowage frame is rotatable relative to the base frame. The stowage frame and base frame are connected at a least one pivot having a main pivot axis. The ladder loading system includes a linkage mechanism. The linkage mechanism includes an idler link that rotates about an idler axis. The linkage mechanism also includes a coupling means for coupling the idler link to the stowage frame. That is, the rotation of the idler link is linked to the rotation of the stowage frame in a master and slave relationship. Suitably, due to the operation of the ladder loading system, rotation of the stowage frame drives rotation of the idler link about the idler axis. The linkage mechanism further includes a control member connected between the idler link and stowage frame.