Patent classifications
E06C1/125
EXTENDABLE / RETRACTABLE LADDER
An extendable/retractable ladder assembly includes a first stile and a second stile and a plurality of rungs extending therebetween. Each stile may comprise a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion. A connector assembly connects the rungs to respective columns in the first and second stiles. The ladder has improved manufacturability since connector assemblies may be assembled before connecting the rungs to respective columns. The standing surface of the rungs may be angled such that it is rotated towards horizontal when the ladder assembly is leaned against a wall. A latch assembly may be used to selectively lock relative axial movement between adjacent columns. The latch assembly includes a locking pin assembly comprised of a central post and an outer metal sleeve. An air damper may also be used to control airflow through the columns.
SAFETY ATTACHMENT FOR LADDERS
A safety attachment which is used to stabilize a straight ladder or an extension ladder, comprising: a main body, which contains an upper portion and a lower portion, the upper portion and the lower portion are connected to each other; the upper portion can be attached to the ladder, and the lower portion can stably contact ground surface; a plate, which is fixed on the main body, and a first loop is fixed on the plate; and at least one rope, which has one connector located on both ends of the rope respectively, and one of the connectors is used to detachably attach to the first loop to let the rope connect to the main body, another one of connectors is used to detachably attach to a second horizontal bar on the ladder to let the rope connect to the ladder.
Extension Ladder With Cushions
An extension ladder includes sub-ladders and cushions. Each sub-ladder includes a rung s connected to two tubes. The tubes of each sub-ladder are telescopically connected to the tubes of an adjacent sub-ladder. Each cushion includes an air bag and a slow-release unit. The air bag includes an open end with a channel. The air bag of each cushion is inserted in a corresponding tube. The slow-release unit is operable to slowly release air from the air bag and includes a restraint and a membrane. The restraint is connected to the open end of the air bag. The membrane includes an aperture and is movable arranged between the restraint and the open end of the air bag, with the aperture in communication with the channel.
TELESCOPIC LADDER ASSEMBLY
A telescopically extendable and collapsible ladder assembly includes a top ladder section, a bottom ladder section, and one or more intermediate ladder sections. The assembly may include sliding automatic release actuators, having a slanted actuating surface for interaction with actuator surfaces of spacers provided at each end of a rung of an adjacent ladder section, such that, when a rung is moved towards the rung of an adjacent lower ladder section, the activation surfaces of the spacers push the release actuators into an unlocking position and subsequently position the rung at an anti-finger pinching distance. The top rung of the bottom ladder section may be provided with a centrally arranged grip element that forms a housing for manually operable release actuators provided at the bottom side of the rung.
Climbing Product Having an Extendable Section Lock Assembly, and Methods for Using and Producing a Climbing Product
A climbing product whose sections are extendable having a base section and a fly section. The fly section in sliding engagement with the base section. The climbing product having a lock assembly having a lock fly portion directly attached to the fly section. The lock fly portion directly engages with the base section to lock the base section with the fly section. The lock fly portion disengages from the lock base portion by simply moving the fly section relative to the base section to unlock the fly section from the base section. A method for using a climbing product whose sections are extendable. A method for producing a climbing product whose sections are extendable.
A STABILISER SYSTEM FOR A COLLAPSIBLE LADDER
A stabiliser system (150; 160; 170; 180) for use with at least one ladder tube (10, 12) of a collapsible ladder (1) wherein the collapsible ladder (1) comprises at least two ladder sections (6, 5a-5j) and where each ladder section comprises two ladder tubes (10, 12) arranged parallel to each other and interconnected by a rung (20) to form the respective ladder section, and where each ladder tube (10, 12) is telescopically inserted into a ladder tube (10, 12) of a lower ladder section to form the collapsible ladder (1) is provided. The stabiliser system (150; 160; 170; 180) comprises at least two bracket sections (110a-b, 112a-b; 120a-b, 122a-b) each arranged to receive a respective ladder tube (10, 12), and two elongated portions (130a-b) being connected to at least one bracket section (110a-b, 112a-b; 120a-b, 122a-b), wherein each elongated portion (130a-b) is configured to be arranged in a retracted position (71) and a deployed position (72), wherein in the retracted position (71) each elongated portion (130a-b) is arranged substantially parallel to the respective ladder tubes (10, 12).
Maintenance cart with air filtration
A maintenance/construction cart that facilitates wall and ceiling access while isolating the interior of the cart from the surrounding environment. The cart is configured such that its height can be easily adjusted by an operator to provide access to ceilings of different heights while maintaining the seal between the interior of the cart and the surrounding environment while structurally supporting a ladder leaning against a surface of the cart. In some embodiments, the cart includes an air filtration unit.
TREE STAND SYSTEM
A portable stand includes a telescoping ladder and a plurality of pairs of brackets. Each bracket of the plurality of pairs of brackets includes an eyelet, and each of the plurality of pairs of brackets includes a rod that connects each pair of brackets with one another. The portable stand may further include a plurality of straps, and each of the plurality of straps is secured to a corresponding pair of brackets. The portable stand may further include a platform.
Locking assembly for a telescoping ladder
Embodiments include a telescoping ladder with a plurality of columns and rungs. The ladder can have a plurality of locking assemblies for locking adjacent columns to a rung thereby restricting relative sliding motion between adjacent columns. The locking assembly can have a locking button positionable against the rung front surface and rotatable with respect thereto between a locked position and an unlocked position. The locking assembly can have a locking pin positioned within the rung and slidable between an extended position and a retracted position along a locking pin axis generally perpendicular to the rotational axis. The locking assembly can have a connector pin extending in a direction parallel to the rotational axis, for connecting the locking button to the locking pin such that rotation of the locking button about the rotational axis slides the locking pin about the locking pin axis.
FAST-FOLDING TELESCOPIC LADDER
The present invention discloses a fast-folding telescopic ladder. The telescopic ladder body includes telescopic ladder rods, pedals, hinges, and buttons provided at ends of bottom surfaces of the pedals and used for releasing a locked state between corresponding sleeve rods when pressed. A top end of one of the telescopic ladder rods is fixed with a handrail rod. An extension part includes a plurality of bottom tubes that are respectively socketed and matched with bottom ends of the telescopic ladder rods; and a transverse connecting piece, two ends of which are respectively socketed and matched with top ends of the paired bottom tubes. A driving mechanism that realizes the vertical movement of the linkage rod by pedaling is arranged between the bottoms of the two paired bottom tubes. This solves the problem of inconvenient operation when folding a telescopic ladder.