The invention relates to an assembly comprising a folding ladder and a platform for making a scaffold. The platform comprises a panel with a first securing device and a second securing device for securing the panel on the ladder, and is provided with an aperture through which the first securing device is manually operable from a top side of the platform. The first securing device comprises a latch that is movable between a locking position and an unlocking position, and is provided with a control portion configured to be engaged by hand via the aperture to enable movement of the latch between a locking position and an unlocking position. The latch has a gripper portion for in a locking position engaging a rung to secure the panel on the ladder, and for in an unlocking position disengaging the rung to enable the panel to be removed from the ladder.
E04G 7/30 - Scaffolding bars or members with non-detachably fixed coupling elements
E04G 7/34 - Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins
The invention relates to an A-frame ladder, comprising a first telescopic ladder assembly and a second telescopic ladder assembly that are hingedly connected such that the second ladder assembly is pivotal about a hinge axis relative to the first ladder assembly between a straight configuration and an A- configuration. The second ladder assembly, at a top end thereof, is hingedly connected to stand off arms, such that the hinge axis is in line with the stile members of the second ladder assembly, and the hinge axis, in a longitudinal direction of the ladder assemblies, is spaced relative to a top rung of the first ladder assembly at a first pivot distance, and is spaced relative to a top rung of the second ladder assembly at a second pivot distance, wherein the second pivot distance is smaller than the first pivot distance.
E06C 1/22 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
E06C 1/12 - Ladders for resting against objects, e.g. walls, poles, trees multi-part extensible, e.g. telescopic
A telescopically extendable and collapsible ladder assembly includes multiple collapsible ladder sections provided with an air damper at the bottom end of tubular stile members. The air dampers provide retardation of gravity induced velocity of the collapsible ladder sections upon collapse of the ladder sections. Multiple air dampers include a throttle valve securing device, for cooperating with a throttle valve of the air damper when the collapsible ladder section is in the collapsed position, to secure the throttle valve in its throttle position and/or an obturator device. The obturator device includes a first obturator member and a second obturator member where the first obturator member and the second obturator member are configured to, when the collapsible ladder section is in the collapsed position, in combination provide additional throttling.
E06C 1/18 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as ladders
E06C 1/22 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
E06C 1/383 - Foldable ladders in which the longitudinal members are brought together on folding
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.
A telescopically extendable and collapsible ladder assembly has a bottom ladder section, a top ladder section, and one or more intermediate ladder sections. The ladder is, for one or more, e.g. for all, collapsible ladder sections, provided with a pair of air dampers, which air dampers provide retardation of gravity induced velocity of the collapsible ladder section upon collapse thereof. Each of the air dampers comprises an axially compressible and expandable air chamber member having an internal air chamber, said air chamber member being provided with means providing an air flow restricting passage for air pressurized in said internal air chamber and being forced out of said internal chamber upon mechanical compression of the air chamber member from an expanded state into a compressed state as the collapsing ladder section reaches its collapsed position, which air chamber member is adapted to expand upon later extension of said collapsing ladder section.
The invention relates to a telescopically extendable and collapsible ladder assembly comprising multiple collapsible ladder sections provided with an air damper at the bottom end of tubular stile members. The air dampers provide retardation of gravity induced velocity of the collapsible ladder sections upon collapse of the ladder sections. According to the invention, multiple air dampers comprises a throttle valve securing device, for cooperating with a throttle valve of the air damper when the collapsible ladder section is in the collapsed position, to secure the throttle valve in its throttle position and/or an obturator device, the obturator device comprising a first obturator member and a second obturator member wherein the first obturator member and the second obturator member are configured to, when the collapsible ladder section is in the collapsed position, in combination provide additional throttling.
E06C 1/12 - Ladders for resting against objects, e.g. walls, poles, trees multi-part extensible, e.g. telescopic
E06C 1/22 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
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.
The invention relates to a telescopically extendable and collapsible ladder assembly having a bottom ladder section, a top ladder section, and one or more intermediate ladder sections. The top ladder section and the one or more intermediate ladder sections are collapsible ladder sections,multiple of which are provided with air dampers, being mounted on a bottom end of tubular stile members of the collapsible ladder sections. The air damper comprises a barrier member that defines one or more throttle openings,a valve member, and an actuator member. The actuator member pushes the valve member into the throttle position during collapse of the collapsible ladder section, and pushes the valve member into the non-throttle position during extension of the collapsible ladder section.
The invention relates to a telescopically extendable and collapsible ladder assembly having a top ladder section, a bottom ladder section, and one or more intermediate ladder sections. According to a first aspect of the invention sliding automatic release actuators are provided, 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. According to a second aspect of the invention, the top rung of the bottom ladder section is provided with a centrally arranged grip element that forms a housing for manually operable release actuators provided at the bottom side of the rung.
A combined step stool and workpiece support device has a folding frame with a rigid front leg structure including front legs and a first support bar interconnecting the front legs at an upper end thereof. The frame also includes a rear leg structure including rear legs, each being pivoted to a front leg via a first hinge for movement of the rear leg structure between a use position and a storage position. Portions of the front legs above the first hinges and the first support bar form a first workpiece support bracket. The device includes a pivotable rigid second workpiece support bracket with a pair of arms, each having a lower end pivotally connected via a second hinge to the frame. The second support bracket is pivotal between a use position and a collapsed position.
A portable ladder has two stiles interconnected by rungs. The ladder is provided with a stand off device, including two stand off arm assemblies, each being telescopically inserted into a receiving space. Each stand off arm assembly has a base part and a stand off arm interconnected by a hinge that allows the stand off arm to be pivoted between a position in alignment with the base part and an angled stand off position. The stand off arm assemblies are each configured such that—in extended position—the hinge is located outside the receiving space with the base part being located within said receiving space, and also such that—in retracted position—the base part, the hinge, as well as at least a portion of the stand off arm are located within the receiving space.
b), each having a lower end pivotally connected via a second hinge (27, 28) to the frame. The second support bracket is pivotal between a use position and a collapsed position.
A portable ladder has two stiles interconnected by rungs. The ladder is provided with a stand off device, including two stand off arm assemblies, each being telescopically inserted into a receiving space. Each stand off arm assembly has a base part and a stand off arm interconnected by a hinge that allows the stand off arm to be pivoted between a position in alignment with the base part and an angled stand off position. The stand off arm assemblies are each configured such that—in extended position—the hinge is located outside the receiving space with the base part being located within said receiving space, and also such that—in retracted position—the base part, the hinge, as well as at least a portion of the stand off arm are located within the receiving space.
A combined step stool and workpiece support device (4) has a folding frame with a rigid front leg structure including front legs (2,3) and a first support bar interconnecting the front legs at an upper end thereof. The frame also comprises a rear leg structure including rear legs (10,11), each being pivoted to a front leg via a first hinge (15, 16) for movement of the rear leg structure between a use position and a storage position. Portions (2a, 3a) of the front legs above the first hinges and the first support bar form a first workpiece support bracket (20). The frame further comprises an upper step (30) and one or more lower steps (35). The device comprises a pivotable rigid second workpiece support bracket (25) with a pair of arms (25a, 25b), each having a lower end pivotally connected via a second hinge (27, 28) to the frame, the second support bracket comprising a second support bar (26) interconnecting said arms at an upper end thereof. The second support bracket is pivotal between a use position, wherein the support brackets are in a V-shaped arrangement, and a collapsed position, wherein the support brackets are generally parallel to each other. In use position of the second support bracket, the first and second support brackets define workpiece support faces in a, preferably horizontal, support plane.
A portable ladder has two stiles interconnected by rungs. The ladder is provided with a stand off device, comprising two stand off arm assemblies, each being telescopically inserted into a receiving space. Each stand off arm assembly has a base part and a stand off arm interconnected by a hinge that allows the stand off arm to be pivoted between a position in alignment with the base part and an angled stand off position. The stand off arm assemblies are each configured such that - in extended position - the hinge is located outside the receiving space with the base part being located within said receiving space, and also such that - in retracted position - the base part, the hinge, as well as at least a portion of the stand off arm are located within the receiving space.
A telescopically extendable and collapsible ladder assembly having at least three ladder sections, each of said ladder sections having two tubular stile members arranged parallel to each other and interconnected at one end by a ladder rung to form a U-shaped ladder section; the stile members of each ladder section being telescopically inserted into the stile members of an adjacent ladder section. The ladder assembly further comprises automatic latch mechanisms for locking the telescopically inserted stile members relative to one another when the ladder sections are extended, the latch mechanisms being associated with actuators for unlocking the stile members in order to allow for collapsing of the ladder assembly.
A platform for installation on a folding ladder in scaffolding position, which folding ladder is of the type comprising multiple folding ladder sections, which are connected to one another by hinges, in which, in the scaffolding position, outer folding ladder sections form a ground support and central folding ladder sections form a bridge. The platform is composed of one or more plastic panels. These one or more panels are preferably made using a plastic blow-moulding technique . Particularly preferably, the platform is composed of two panels and the panels are of different length, which is preferably chosen such that the connection of the two panels is situated above a rung of a folding ladder section, preferably the rung closest to a central hinge of the folding ladder.
E04G 1/34 - Scaffold constructions able to be folded in prismatic or flat parts or able to be turned down
E06C 1/12 - Ladders for resting against objects, e.g. walls, poles, trees multi-part extensible, e.g. telescopic
E06C 1/22 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
E06C 1/32 - Ladders with a strut which is formed as a ladder and can be secured in line with the ladder
E06C 1/39 - Ladders having platformsLadders changeable into platforms
E06C 7/16 - Platforms on, or for use on, ladders, e.g. liftable or lowerable platforms
patents
