Herein disclosed is a platform apparatus which attaches to the top of a conventional ladder or extension ladder, and a wheeled apparatus which attaches to said ladder, thus forming a single composite apparatus. Said composite apparatus can then operate as a cart for transporting itself, equipment and other loads to and from usage locations, and said composite apparatus can operate as an elevated platform when attached to a tree or similar elevated surface.

A pool platform device comprising: a platform support which, in use, is configured to extend at least partially into the water of a pool; a platform adjustably mounted to the platform support, wherein in use, the platform is elevated above a floor of the pool such that a user can step up from the floor and onto the platform; and mounting means associated with the platform support and configured to releasably secure the device to a structure or feature of or associated with the pool.

A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames and a plurality of outriggers to increase stability. The outriggers attach to the ladder frames of the scaffold and extend beyond an end of the scaffold in the longitudinal direction to increase the maximum base width. Increasing the maximum base width increases stability in the longitudinal dimension and reduces the risk of tipping the scaffold end over end when a user climbs the ladder frame to access the platform.

According to the present invention, a ladder having an adjustable length comprises: a first support including a first outer support and a first inner support inserted into the first outer support; a horizontal foothold for connecting the first supports to each other; a first gear formed at the inner side of the horizontal foothold and having a groove part formed therein; a second gear engaging with the first gear and changing the rotational direction of the first gear; a rotary bar coupled to the second gear; a third gear formed at the end of one side of the rotary bar; a screw bolt having a fourth gear, which engages with the third gear and is formed at the end thereof, formed inside the first inner support, formed in a stick type, and having threads formed on the outer side thereof; and a screw nut in which the screw bolt is formed, and to which the first inner support is coupled at the outer side thereof.

According to the present invention, a ladder having an adjustable length comprises: a first support including a first outer support and a first inner support inserted into the first outer support; a horizontal foothold for connecting the first supports to each other; a first gear formed at the inner side of the horizontal foothold and having a groove part formed therein; a second gear engaging with the first gear and changing the rotational direction of the first gear; a rotary bar coupled to the second gear; a third gear formed at the end of one side of the rotary bar; a screw bolt having a fourth gear, which engages with the third gear and is formed at the end thereof, formed inside the first inner support, formed in a stick type, and having threads formed on the outer side thereof; and a screw nut in which the screw bolt is formed, and to which the first inner support is coupled at the outer side thereof.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on and is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

An assembly upon which a user stands includes a platform. The assembly includes a first work stand and a second work stand. Each work stand has a front frame and a rear frame. The assembly includes a first plank adapter engaged with the first work stand. The first plank adapter has an attachment portion and a bar. The assembly includes a second plank adapter engaged with the second work stand. The platform rests on and is supported by the first and second plank adapters. The present invention pertains to a work stand for holding a platform upon which a user stands. A plank adapter that is engaged with a front frame of a work stand to hold a platform. A method for a user to stand above ground. A method for forming a work stand.

A vehicle-mounted access system includes a fixed base structure including a plurality of track channels; a plurality of movable hinge carriages configured to move along the plurality of track channels; an inclinable access structure pivotably connected to the movable hinge points and connected to lifting masts by forward tension elements, lifting masts connected to the fixed base structure by rear tension elements and pivotably connected to the fixed base structure; an actuator connected between the movable hinge carriages and the fixed base structure, the actuator configured to move the movable hinge carriages to raise the distal end of the inclinable access structure via the forward tension elements, the lifting mast, and the rear tension elements.

A vehicle-mounted access system includes a fixed base structure including a plurality of track channels; a plurality of movable hinge carriages configured to move along the plurality of track channels; an inclinable access structure pivotably connected to the movable hinge points and connected to lifting masts by forward tension elements, lifting masts connected to the fixed base structure by rear tension elements and pivotably connected to the fixed base structure; an actuator connected between the movable hinge carriages and the fixed base structure, the actuator configured to move the movable hinge carriages to raise the distal end of the inclinable access structure via the forward tension elements, the lifting mast, and the rear tension elements.

A stabilization and anti-rotation system provides for secure interconnection between a scaffolding work platform and two primary platforms, each of which is attached to a ladder, and prevents relative movement between the primary platforms and the scaffolding platform. A locating block is attached to a plate of each primary platform 402. A pair of spaced apart and vertically oriented guide blocks are attached to a facing plate on each end of the work platform and positioned so that a guide slot is defined between the blocks. When assembled, the locating block is closely captured between the guide blocks and the structure provides stability and prevents rotation of the work platform relative to the primary platforms.