Abstract: A trailer rub rail portable ladder includes a ladder portion and two rub rail mounting members. One end of a hand rail may be attached to each rub rail mounting member. The ladder portion preferably includes two ladder side rails, a plurality of step members and two ladder hinge members. The plurality of step members are retained between the two ladder side rails. The ladder hinge member is attached to one end of the ladder side rail. Each rub rail mounting member includes a rail slot and a pivot hole. A pivot pin is inserted through each ladder hinge member and each rub rail mounting member to pivotally retain thereof relative to each other. The rub rail slots of the two rub rail mounting members are engaged with a rub rail of a truck trailer.

Abstract: In an first aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket assembly for mounting on the trailer; a first side rail; a second side rail parallel to the first side rail; and a plurality of rungs pivotally connected to both the first and second side rails. The ladder is collapsible to decrease a distance between the first and second side rails. In a second aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket; a first side rail; a second side rail parallel to the first side rail; a plurality of rungs connecting the first and second side rails; and a pivotal connection. The first and second side rails define a plane and the pivotal connection allows for rotation of the plane about a vertical axis. The pivotal connection is disposed between the attachment bracket and the first side rail.

Abstract: An apparatus, system, and method are disclosed to prevent a user from using the top step of a ladder. The apparatus comprises a substantially solid front face on which a first side flap and second side flap are disposed. The first and second side flaps are disposed at an angle to the front face in order to create a spring force when inserted in a “C” shaped cross section of a ladder. The apparatus is held to a ladder through the spring force and by securing the side flaps and front face to the ladder legs.

Abstract: A ladder safety apparatus and methods of using the same are disclosed. An example ladder safety apparatus includes a stabilizer bar for a top portion of a ladder, the stabilizer bar configured to rest on a roof top. The ladder safety apparatus also includes a balance rail for the top portion of the ladder to provide handles for a user climbing onto the roof top. The ladder safety apparatus also includes an attached strap to connect adjacent the roof top for securing the ladder.

Abstract: The safety ladder may be an extension ladder having two or more relatively sliding sections, and incorporates a number of safety devices. The lower end of the ladder incorporates two opposed lateral stabilizers and two outwardly extending stabilizers, i.e., extending from the opposite face of the ladder from the structure against which the ladder is placed. The upper end of the ladder includes a pair of articulating lateral arms that brace against the structure against which the ladder is deployed, and articulating clamps or straps for securing the ladder to the structure. The medial portion of the ladder includes a handrail extending from each ladder rail. All of these devices may be retracted, collapsed, and/or folded for compact storage and transport when not in use. The entire ladder, i.e., rails, rungs, as well as the various safety components attached thereto, is coated with an electrically non-conductive coating for additional safety.

Abstract: The present disclosure provides a swimming pool ladder with a barrier. The ladder includes two ladder sections. A top platform for supporting is connected between the upper portions of the two ladder sections and disposed above the swimming pool. The two ladder sections are respectively positioned inside and outside the swimming pool. The ladder section includes two parallel-disposed rails and a plurality of steps. The plurality of steps are mounted at intervals along the two rails from top to bottom. A barrier is provided that is perpendicular to the inner side face of the first ladder section. The barrier has a triangle shape, one edge of which is adjacent the inner side face of the first ladder section and fixed on at least two steps through at least two connectors and another edge is adjacent the inner sidewall of the swimming pool. The top end of the barrier is spaced from the top platform by a distance and the bottom end is adjacent the floor of the swimming pool.

Abstract: A retrofit handrail extension system or kit enables a large mining truck to be retrofitted in the field. The handrail extension system includes a first handrail extension member for connecting a first upper portion of a first ladder to a railing mounted to a catwalk around the cabin of the truck and a second handrail extension member for connecting a second upper portion of the first ladder to a forward-facing handrail mounted to an outer surface of the cabin of the truck. The system may include a third handrail extension member for connecting a first upper portion of a second ladder to a first platform railing mounted to a platform beside the cabin of the truck and a fourth handrail extension member for connecting a second upper portion of the second ladder to a second platform railing mounted to the platform beside the cabin of the truck.

Abstract: Many family homes, school and municipal parks have play structures for children. Typically these playground play structures have ladders. In the case of family homes in particular, toddlers typically enjoy climbing the ladders but then are stuck at the top and in danger of falling off the ladder. In order to prevent toddlers from climbing the ladder of the play structures when unattended by an adult, and ultimately preventing injury, an invention that prevents the ladder from being climbed by a toddler is presented here.

Abstract: An access device (1) adapted to provide access between a substrate surface (2) and an elevated surface (3). The access device (1) includes a mounting (4), for securement of said device (1) below an extremity of said elevated surface (3), a first ladder member (5), a first end (9) of which is pivotally attached to an upper end (11) of said mounting (4), a second ladder member (6), a first end (12) of which is pivotally attached to a second end (13) of said first ladder member (5), drive means (7), operatively connected between said mounting (4) and said first ladder member (5), to control the movement of said first ladder member (5) between an access position and a storage position, and, a guide arm (8), operatively connected between a lower end of said mounting (4) and said second ladder member (6), to guide the movement of said second ladder member (6) as said drive means (7) moves said first ladder member (5).

Abstract: A safety system for a swimming pool ladder is described for use in above-ground swimming pools. The safety system can comprise a frame covered with fabric or other enclosure permanently or temporarily affixed to the ladder and/or the sidewall of an above-ground swimming pool. The fabric can comprise a plurality of vent holes to prevent excessive side loads caused by water currents. The safety system can be detachably coupled to the ladder using a tab and slot configuration. The safety system can prevent objects from entering and becoming trapped between the pool sidewall and the pool ladder.

Abstract: A passenger stairway, which may be integrated with an aircraft, contains at least one first stairway segment having a first plurality of steps and a receptacle device, and at least one second stairway segment having a second plurality of steps, which is insertable into the receptacle device, so that the first and second stairway segments come to rest lying one on top of another.

Abstract: A retrofit handrail extension system or kit enables a large mining truck to be retrofitted in the field. The handrail extension system includes a first handrail extension member for connecting a first upper portion of a first ladder to a railing mounted to a catwalk around the cabin of the truck and a second handrail extension member for connecting a second upper portion of the first ladder to a forward-facing handrail mounted to an outer surface of the cabin of the truck. The system may include a third handrail extension member for connecting a first upper portion of a second ladder to a first platform railing mounted to a platform beside the cabin of the truck and a fourth handrail extension member for connecting a second upper portion of the second ladder to a second platform railing mounted to the platform beside the cabin of the truck.

Abstract: The present disclosure relates to a ladder safety device that promotes the safe use of step ladders. The ladder safety device includes a first structural component that prevents a ladder user from stepping on an upper-most step of the step ladder. The ladder safety device also includes a second structural component that prevents the user from stepping on a ladder top of the step ladder.

Abstract: The safety ladder may be an extension ladder having two or more relatively sliding sections, and incorporates a number of safety devices. The lower end of the ladder incorporates two opposed lateral stabilizers and two outwardly extending stabilizers, i.e., extending from the opposite face of the ladder from the structure against which the ladder is placed. The upper end of the ladder includes a pair of articulating lateral arms that brace against the structure against which the ladder is deployed, and articulating clamps or straps for securing the ladder to the structure. The medial portion of the ladder includes a handrail extending from each ladder rail. All of these devices may be retracted, collapsed, and/or folded for compact storage and transport when not in use. The entire ladder, i.e., rails, rungs, as well as the various safety components attached thereto, is coated with an electrically non-conductive coating for additional safety.

Abstract: An accommodation ladder includes a body having opposite sides, an upper, and rear and bottom surfaces. The body is formed of a compressible material, such as dense foam material, and the upper surface of the body forms a staircase with a plurality of steps. Spaced stanchions extend upwardly from the staircase and stanchion pipes extend through the body and receive lines therethrough to secure the body to a marine structure. The spaced stanchions are adapted to accommodate a plurality of releasable safety lines therebetween. A method of facilitating access between adjacent first and second marine structures includes arranging the staircase accommodation ladder between the structures, the accommodation ladder being a fender between such structures.

Abstract: A step ladder apparatus for retention within a stake pocket comprising a frame assembly a plurality of step assemblies and an attachment assembly. The attachment assembly includes a frame flange and a wedge member. The frame assembly is positioned within the stake pocket so that the frame flange overhangs one end of the stake pocket. The base of the wedge member is inserted into the stake pocket opposite the frame flange so that the wedge flange overhangs the stake pocket on a side opposite the frame flange. As a result, the flanges cooperate to substantially preclude downward movement of the frame assembly, and, in turn, removal of the frame assembly in a downward direction from the stake pocket.

Abstract: A portable safety ladder assembly having safety extensions to permit safe and easy access to landing areas, working platforms, scaffolds, etc. The safety extension members have a plurality of horizontal handgrips ergonomically designed to prevent falls from the ladder assembly when a user is ascending upward or descending downward thereon.

Abstract: Ladders, ladder components and related methods are provided including various embodiments of a combination ladder. In some embodiments, a platform is provided that is fixedly coupled with a rail assembly of a combination ladder. The platform may pivot between a useable position or state and a stowed or stored position or state. The platform may maintain a position relative to certain rungs of the rail assembly while being displaceable relative to other rungs of the rail assembly. A hand rail may be coupled to the rail assembly and a tray may be coupled with the hand rail. The tray and the platform may be configured to maintain a constant distance between one another while the rail assembly is adjusted for height.

Abstract: A ladder device includes a ladder main body, a hand railing, a driving mechanism and a coupling member. One end of the coupling member is pivotably supported by the ladder main body, while the other end thereof is pivotably supported by the hand railing. The coupling member is configured to: position the hand railing between the ladder main body and a walkway when the ladder main body takes the deployed posture; pivot the hand railing in conjunction with a pivot action of the ladder main body from the deployed posture to the retracted posture; and position the hand railing further inwards of the vehicle body than the ladder main body is when the ladder main body takes the retracted posture.

Abstract: A standoff arrangement for ladders and the like, comprising a ladder attachment portion and a ladder support portion. The attachment portion is releasably securable to ladder, and the support portion extends from the ladder attachment portion, having a pair of individually adjustable bearing arms which can be universally adjusted in relation to the structure against which the ladder standoff arrangement bears.

Abstract: In a first aspect there is a combination hollow-runged ladder with guardrails in which the guardrails are connected to at least a pair of spaced-apart yokes, each yoke extending through a respective ladder rung, and locking means to lock each yoke and hence the guardrails in an outwardly extended position relative to the ladder side rails. A second aspect provides a guardrail assembly for attachment to a hollow-runged ladder, the assembly comprising a pair of guardrails, one for each side of the ladder, each guardrail being connected to at least a pair of guardrail supports, each guardrail support being adapted to fit within a respective ladder rung and including means by which it can be releasably secured thereto, the arrangement being such that respectively opposite guardrail supports and the rungs to which they are releasably attached collectively define a releasable yoke for supporting the pair of guardrails.

Abstract: A ladder deployment system for raising and lowering a ladder (10) includes a ladder having side rails (14, 16) and transverse treads or rungs (18) extending between said side rails, an actuator mechanism (44, 46) which moves the ladder between a raised and lowered positions and stationary guides (34, 36) which supports the ladder at two or more spaced apart locations at different heights, while said ladder translates relative to the guides. The deployment of the ladder between its raised and lowered positions includes a generally vertical translation of the ladder and a further tilting motion.

Abstract: An A-frame ladder has a first ladder and a second ladder. The first ladder has two rails interconnected by a plurality of steps and a first set of grooves that receive a gate/barrier device to inhibit a person from using the first ladder's steps. The second ladder also has two rails interconnected by a plurality of steps and a second set of grooves, interconnected to the first set of grooves, that receive the gate/barrier device so the first ladder and the second ladder can be used and inhibits a person from entering the area between the first ladder and the second ladder through the second ladder's steps.

Abstract: An A-frame ladder has a first ladder and a second ladder. The first ladder has two rails interconnected by a plurality of steps and a first set of grooves that receive a tambour device that inhibits a person from using the first ladder's steps. The second ladder has two rails interconnected by a plurality of steps and a second set of grooves, interconnected to the first set of grooves, that receive the tambour device so the first ladder and the second ladder can be used and inhibits a person from entering the area between the first ladder and the second ladder through the second ladder's steps.

Abstract: A ladderway system for an underground raise includes an elongate tube adapted to generally conform to the shape of the raise. The tube is of circular cross-section to generally conform to the shape of a round bored raise. The tube is formed with a longitudinal slit along its entire length, whereby the diameter of the tube can be adjusted to generally conform to the shape of the raise. The ladderway system further includes a ladder adapted to be mechanically coupled to an interior of the tube. The tube is manufactured of a sufficiently rigid and strong plastics material, such as polyurethane, so that it acts as a surface membrane or liner within the raise.

Abstract: The aquatic ladder was designed for ease of use, rather than ease of storage. It has wide, deep treads, arranged like a staircase, with side and upper railings which make it easy to enter or exit the water, even by elderly people, tired individuals, those carrying aquatic equipment, such as SCUBA gear or water skis, and, even, by pets. In the preferred embodiment, the aquatic ladder includes upper railings which each have an inverted “U” shape, and the distal end of those railings have hinged brackets for mounting the aquatic ladder to an object to be boarded. In an alternative embodiment, the aquatic ladder is mounted on a sliding rail, such that it can be raised, vertically, from the water, when it is not being used. The vertical portions of the ladder are short, relative to the overall height of the ladder whereby less material is used to manufacture the ladder, while making its shipment and storage easier.

Abstract: A first embodiment of the security apparatus comprises a retaining collar; a plurality of segments forming a generally frusta-conical enclosure, with one or more of the segments having an access opening therein; and a lockable access door covering the opening. The retaining collar is separable into portions that conforms to the shape of the periphery and are coupled together around the structure. The segments have an upper portion that attaches to the collar; and have a bottom portion that extends radically downwardly from the collar at an angle of about 30 degree; with the radial edges interconnected forming the enclosure. A second embodiment of the apparatus secures a ladder supported on a wall and a retaining bar; a plurality of segments forming a generally semi-frusta-conical enclosure, with one or more of the segments having an access opening therein; and a lockable access door covering the opening.

Abstract: A portable safety ladder assembly having safety extensions to permit safe and easy access to landing areas, working platforms, scaffolds, etc. The safety extension members have a plurality of horizontal handgrips ergonomically designed to prevent falls from the ladder assembly when a user is ascending upward or descending downward thereon.

Abstract: A ladder or a retrofit kit for a ladder specially designed for a safe ascent onto and descent from a roof top. Two swing arms are mounted on the outside of the ladder rails near the top rung of the ladder. The swing arms are normally in a storage position along side the rails. The arms can be pivoted and locked in an upright or nearly upright position, forming handles to hold as a user walks through the arms and onto the roof. Each arm can have a non-slip grip covering at least half of the arm beginning at it's free end. Additionally, a swing plate is pivotally attached to the top rung. With the top rung just above the level of the roof edge, the plate or step can be pivoted over and onto the roof to create a safe step at the top of the ladder. The swing arms and safety step can be incorporated into a quick and easy to install retrofit kit which could be temporarily or permanently attached to most ladders.

Abstract: A safety ladder assembly and a safety extension used in combination with a ladder suitable to permit safe and easy access to the landing areas, working platforms, scaffolds, etc. The assembly includes safety extension members having a plurality of horizontal handgrips ergonomically designed to prevent falls from the ladder when a user is ascending upward or descending downward.

Abstract: An access apparatus for tailgated vehicles is provide having a slideable bar located within the top platform with rotatable ladder attached to the slide bar. A safety grab bar is provide with a spring loaded locking bar. The entire apparatus is removable by simply removing the four (4) mechanical fasteners and one (1) mounting knob.

Abstract: In an first aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket assembly for mounting on the trailer; a first side rail; a second side rail parallel to the first side rail; and a plurality of rungs pivotally connected to both the first and second side rails. The ladder is collapsible to decrease a distance between the first and second side rails. In a second aspect, a ladder for mounting on a vehicle trailer includes an attachment bracket; a first side rail; a second side rail parallel to the first side rail; a plurality of rungs connecting the first and second side rails; and a pivotal connection. The first and second side rails define a plane and the pivotal connection allows for rotation of the plane about a vertical axis. The pivotal connection is disposed between the attachment bracket and the first side rail.

Abstract: A ladder equipped with a safety bar comprises a first support supported on the ground, including a plurality of horizontal bars. A fixed bracket has one end fixed to the upper portion. A second support is rotatably combined with the other end portion of the fixed bracket. A foothold is between the first and second supports and is rotatably combined toward the second support on one side. A safety is installed in a C-shaped fashion toward the front side from the fixed bracket. Rotating devices are installed in the first and second supports. Each of the rotating devices comprises a first circular rotating unit having a groove on the outer circumferential surface. A second circular rotating unit rotatably inserted into the groove. A hinge axis penetrates centers of the first rotating unit and the second rotating unit and axially combines the first and second rotating units.

Abstract: A vehicle having a compactable walkway, including a supporting surface and a plurality of steps, pivotally coupled to the supporting surface, oriented, spaced, and positioned to provide a graduated walkway when in a deployed position and to lie substantially parallel to the supporting surface when in a retracted position. There is also a support member coupled to a distal end of each of the plurality of steps to enforce consistency of position of the plurality of steps between the deployed and retracted positions; a railing coupled to the support member; a motivator coupled to one of the plurality of steps and configured to direct the plurality of steps from the retracted position to the deployed position; a vertical support coupled to the vehicle for bracing; and a shell coupled to the railing for covering when plurality of steps are in the retracted position.

Abstract: A quick connect/disconnect ladder assembly includes a mounting plate attached to a vehicle's tailgate of a truck bed, a pivot plate mounted thereto to which is attached a ladder on which to ascend to gain convenient access to the bed of the pickup truck. When the tailgate is opened, the ladder can be pivoted away from the vehicle bed to a substantially perpendicular position with respect to its original orientation against the tailgate of the truck. The ladder is then pivoted downwards such that the lower end of the rails or legs contact the ground surface. The ladder is further pivotable counterclockwise to its stowed position on the tailgate to disconnect the ladder and pivot plate from the mounting plate.

Abstract: A multipurpose ladder accessory assembly for a ladder having a top rung, a penultimate rung and a multiple of lower rungs each extending between a first elongated ladder rail and a second elongated ladder rail defining ladder rails, each ladder rail having an upper end and a lower end, said accessory assembly comprising a first and second pair of ladder accessory arms each defining a first arm connected to the first ladder rail between the upper end of the first ladder rail and the penultimate rung, and a second arm connected to the second ladder rail between the upper end of the second ladder rail and the penultimate rung, such that each of the first arms and the second arms of the first and the second pair of ladder accessory arms are independently moveable from a folded position along the ladder rails to an extended position from the ladder rails.

Abstract: A ladder locking device is disclosed. An illustrative embodiment of the ladder locking device includes a frame having a plurality of intersecting frame segments pivotally connected to each other in a scissors jack configuration and a foldable blind carried by the frame. A method of preventing unauthorized use of a ladder is also disclosed.

Abstract: A portable, foldable step ladder in a deployed configuration straddles a tire of a truck, tractor or other heavy vehicle, allowing an operator and mechanic to easily climb toward the engine compartment. A top step rests on the uppermost portion of the tire tread. A middle step and a bottom step are suspended from the top step and, together with their suspensory structure, are foldable into proximity with the bottom surface of the top step. On each side of the top step, a hand rail has a lower portion rotatably connected to the side of the top step near the front thereof. Each hand rail has a transverse portion extending toward the rear of the top step and, attached to the transverse portion, a rear portion extending downward and connected to the sides of the top step near the rear thereof. The hand rail assembly engages the side walls of the tire in hook-like fashion, stabilizing the top step, while the top step supports the hand rail assembly at four points.

Abstract: A ladder guard (10) for use with a ladder (8) having a plurality of rungs (8a-8f). The ladder guard has a first position, in which respective portions (21-23) of the ladder guard are located in front of a number of the rungs (8b-8d) to prevent access to the rungs. The ladder guard has a second position, in which the portions (21-23) of the ladder guard are located behind rungs of the ladder to allow access to the rungs of the number of rungs. The ladder guard includes a support (12) for supporting the ladder guard on a ladder for movement from the first to the second position by lifting the portions of the ladder guard up and over the rungs of the number of rungs. The ladder guard further includes means to releasably lock the ladder guard in the first position.

Abstract: A portable ladder assembly for accessing a cargo carrying structure of a transport vehicle includes a first side rail and a second side rail connected to the first side rail by steps forming a ladder structure. A stake pocket mounting structure and a bracing structure is arranged and configured to engage a sidewall of the cargo carrying structure when the stake pocket mounting structure is received by a stake pocket of the cargo carrying structure.

Abstract: A first embodiment of the security apparatus comprises a retaining collar; a plurality of segments forming a generally frusta-conical enclosure, with one or more of the segments having an access opening therein; and a lockable access door covering the opening. The retaining collar is separable into portions that conforms to the shape of the periphery and are coupled together around the structure. The segments have an upper portion that attaches to the collar; and have a bottom portion that extends radically downwardly from the collar at an angle of about 30 degree; with the radial edges interconnected forming the enclosure. A second embodiment of the apparatus secures a ladder supported on a wall and a retaining bar; a plurality of segments forming a generally semi-frusta-conical enclosure, with one or more of the segments having an access opening therein, and a lockable access door covering the opening.

Abstract: There is described a stair system insertable into a pool having a top edge surface and bottom surface, comprising a stair portion defining steps and risers each having a fixed height, the stair portion having a support portion projecting from an uppermost one of the risers and adapted to be seated against the top edge surface of the pool, and a ballasted booster positioned below the stair portion at any one of given locations in the bottom of the stair portion and lying against the bottom surface of the pool. The stair system has a height adjustable by the position of the booster with respect to the bottom of the stair portion as a function of the height between the top edge surface and the bottom of the pool.

Abstract: This patent pertains to a platform device upon which a person, equipment or both are supported above a ground surface in which the build-up of debris and moisture is impeded. The sanitary platform system is comprised of two or more main rails having square cross-sections that are on diamond and are side-by-side with a space between the main rails; one or more standard web brackets comprised of a plate, two or more tabs and a perimeter defining an opening for receiving a main rail on diamond which are mounted in spaced-apart relation along the length of each of the main rails; two or more vertical legs supporting each of the main rails above the ground surface, and one or more deck plates welded to the tabs of the standard web bracket.

Abstract: A child safety barrier for stairs that is placed on the lower step of a stairway is block-like for filling the space overlying the lower step in depth and laterally, and has an upper surface having a downwardly curved slope from its highest point at the step rear riser to the forward edge of the step. The barrier prevents a young child from climbing the stairs by obstructing their access to the step and the sloped surface causes their knees and hands to slide off the barrier, as their upper bodies are not strong enough to pull themselves over the barrier. The barrier is preferably composed of a pressure molded polyurethane material, which provides a closed outer skin that is easily cleaned and an inner porous structure that is compressible to a flat shape by the weight of an older child or adult allowing easy navigation.

Abstract: A device for a gangway construction is described, which is characterised in that it is composed of a number of sections, each comprising a polygonal frame, one connected to the frame formed as a landing, and a gangway, the one end of which is hinge-connected to the frame/landing while the other end is set up to rest against the frame/landing of an underlying frame, and the construction is arranged to be readjusted between a folded position where the sections are lying on top of each other, as in a stack of frames, with each gangway inserted in the frame, and an active, using position where the frames are set up a distance apart so that the gangways form a suitable angle between adjoining landings/frames. Also described are a section for building a gangway construction, a railing construction and also applications of the invention.

Abstract: Truss arrangements utilizable in ladder sections of extendible ladder arrangements are described. Also described are ladder arrangements utilizing in the truss arrangements, and methods designed in use.

Abstract: A step-extending device is adapted for use in association with a walker to ascend or descend a stairway. The step-extending device may employ a first base and a second base, each of which is adapted to receive legs of a walker upon respective upper surfaces. The device may be used in connection with a frame that connects the first and second bases to each other. A cross member connects first and second bases. A frame includes one or more upright members with handles adapted for grasping and moving the step-extending device from one stair to another stair during use. The height of each of the first and second support bases is adjusted to approximate the height of stairs upon a stairway, so that stairs of essentially any height may be accommodated.

Abstract: A ladder docking device including a ladder securement device and a pair of handrails is provided. The ladder securement device secures a ladder in an assigned location so that using the ladder while carrying tools and equipment up the ladder becomes safer and more secure. Specifically, the ladder securement device captures one of the ladder rungs to help avoid the ladder bottom from slipping on unstable or slippery surfaces and from sliding off sideways. Handrails of the ladder docking device provide a safe transition when stepping off the ladder or stepping down from the roof.

Abstract: A ladder platform and safety rail device is provided for mounting on one or more ladders and includes a U-shaped bracket with an insert leg for extending through a hollow ladder rung. The bracket also includes a rail leg, which is releasably connected to a rail. The bracket legs extend through a bracket leg plate, which secures their ends together with the device mounted on one or more ladders. A working deck is formed by a plank supported on a ladder jack attached to each ladder. A rail support strut extends between the rail and the plank.

Abstract: A stair climbing aid comprises two slide rails, an assist member, a control mechanism and two positioning assemblies. The slide rails and the assist member are assembled to handrails at both sides of the stairs. The control mechanism is disposed on the assist member to be controlled by the user. The positioning assemblies are disposed at both sides of the assist member, each positioning assembly is provided with an engaging portion to be engaged in the respective positioning portions of the slide rail. Thereby, an anti-slide effect is produced, so as to prevent the user from falling down the stairs and to help the user move from step to step safely.