Abstract:
Ein Versorgungsgerüst (13) für einen Turm (1), insbesondere einen Windkraftturm aus ringförmigen oder ringsegmentförmigen Betonfertigteilen (5), welches Turminneneinbauten (7, 8, 9, 10, 11, 12), insbesondere eine Leiter (7), eine Liftanordnung (8), Kabelanordnungen (10), Plattformen und Beleuchtungseinheiten (9), trägt, ist im Inneren des Turms (1) anordenbar und erstreckt sich im Wesentlichen über die gesamte Höhe des Turms (1). Das Versorgungsgerüst (13) ist aus mehreren übereinander angeordneten und miteinander verbundenen Versorgungsgerüstmodulen (13a) zusammengesetzt und bildet eine selbsttragende Einheit, welche hängend an einem oberen Betonfertigteil (5, 5a, 5b) des Turms (1) befestigbar ist. Das Versorgungsgerüst (13) weist eine fachwerkartige, unter Eigengewicht und Nutzlast vorzugsweise nicht knickstabile Gitterstruktur auf, welche durch Zugkräfte aus Eigengewicht und Nutzlast stabilisiert ist. Ein Turm (1), insbesondere Windkraftturm aus ringförmigen oder ringsegmentförmigen Betonfertigteilen (5), weist in seinem Inneren ein entsprechendes Versorgungsgerüst (13) auf. Bei einem Verfahren zum Errichten eines Versorgungsgerüsts (13) im Inneren eines Turms (1) werden mehrere Versorgungsgerüstmodule (13a) übereinander angeordnet und miteinander zu einer selbsttragenden Einheit verbunden, welche eine fachwerkartige, unter Eigengewicht und Nutzlast vorzugsweise nicht knickstabile Gitterstruktur aufweist. Das Versorgungsgerüst (13) wird hängend an einem oberen Betonfertigteil (5) des Turms (1) befestigt wird und im Betrieb durch Zugkräfte aus Eigengewicht und Nutzlast stabilisiert.
Abstract:
A walkway assembly (10) for attachment to a support structure such as a roof of a building comprises a primary support (13) for on-site attachment to the support structure, a plurality of tread modules (41 ) each attached relative to the primary support and moveable between a first position and a second position at which a part of each tread module is spaced further from the primary support than when at the first position, and at least one riser unit (48) for supporting the tread modules relative to the primary support in at least the second of the first and second positions.
Abstract:
The present invention relates to a ladder (100). The ladder comprises a first pair of side rails (1) and at least one platform step (6) pivotably attached at a front end (7) to the each of the first pair of side rails (1) and pivotably attached at a rear end (8) to each of a second pair of side rails (2). The first pair of side rails (1) is moveable relative to the second pair of side rails (2) to move the or each platform step (6) between a substantially horizontal position and a folded position. The ladder further comprises a third pair of side rails (3), having at least one rung (9) provided therebetween, the third pair of side rails (3) mounted to permit extension of the ladder.
Abstract:
A wind turbine tower base access ladder (10) includes a ladder top (12) having a first lip engaging structure (32) disposed at a first end of the ladder top for engaging at least a portion of an outer lip (34) of an opening (22) of a wind turbine tower base (24) when the ladder top is disposed to at least partially extend in the opening. The access ladder also includes a first ladder section (14) attached at the first end of the ladder top and a second ladder section (18) attached at a second end. The first ladder section and second ladder section extend downwardly from the ladder top on opposite sides of the wind turbine tower base when the ladder top is at least partially disposed in the opening effective for allowing a user to move between an exterior of the wind turbine tower base and interior of the wind turbine tower base via the opening.
Abstract:
An extension ladder (100) includes a plurality of step sections with one section engaged with the adjacent section longitudinally, each having a pair of tubular uprights (101) on both sides connected by a hollow rung (102). The tubular uprights (101) on both sides become gradually smaller in cross-section from the bottom up so that a nested relationship is formed between adjacent two uprights. Each tubular upright (101) is formed with a pin hole to engage with a locking mechanism (104) disposed in the rung (102). The locking mechanism (104) includes a shifting wheel (109, 111), a transmission unit (110, 112) and two locking pins (105) on both ends with a self-locking unit (106), respectively. When the shifting wheel (109, 111) is shifted to pull the transmission unit (110, 112), the two locking pins (105) can move along the axial direction. The extension ladder can be combined to form a straight combination ladder, a platform ladder or a stepladder.
Abstract:
A step ladder stabilizer for mounting behind the front step portion and having two adjusting legs which adjust as a slide lock moves vertically within a slot attached to the rear of the ladder steps. When not in use, the ladder stabilizer closes flush against the back of the ladder steps. An alternate embodiment includes a ladder stabilizer for an extension ladder comprising an extending leg and a stabilizer arm with the top of the extending leg attaching to a slide lock that slides along a channel mounted on the side of the ladder. Bolts passing through expansion inserts hold the channel onto each side of the ladder.
Abstract:
The invention refers to a painting equipment, particularly suitable for painting indoor spaces, of the type comprising a structure (1) consisting of a pair of front struts (2), a pair of rear struts (3), provided with access rungs (4) forming a ladder (100), and a mobile landing (6), consisting of a base (6.1) and an anti-fall railing (6.2), said components being mutually hinged so as to allow folding said equipment. Said equipment being characterized in that the structure (1) provides for insertion of an articulated mechanism (10) consisting of the mobile landing (6), the pair of front struts (2) and a pair of brackets, provided with pins (14) for locking/unlocking the mobile landing (6); the two mutually opposite sidewalls of said brackets being hinged onto the upper part of the pair of rear struts (3) and also each tightly fastened integrally to the inner walls of the pair of front struts (2), so as to allow accurately folding the equipment, as well as completely closing the entire structure (1) by pulling the two pair of struts (2, 3) together, so as to form a single package that can be manually moved.
Abstract:
A brace for use with a step ladder has a platform that resists shear forces and two runners. The runners are one located opposed sides of the platform and configured to fit over the unfolded struts of a step ladder. In use, a brace as described above is placed with its runners fitting over, and resting on, the struts of a step ladder. The brace stabilizes the ladder, helps prevent injury to the struts if the ladder falls over and may also force distorted struts into a better alignment. Optionally, the platform may also provide one or more surfaces for supporting tools, for example by way of a sliding shelf. Optionally, a separate tool shelf may be attached at the top of a step ladder.
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:
Comprende un bastidor (1) unido a dos ruedas traseras (4) macizas, una rueda delantera (5) maciza y una lanza (6) biarticulada de enganche a un vehículo de suministro. Comprende peldaños (8), barandillas (9) y dos plataformas (10) de trabajo a distinta altura. Incorpora además un sistema de suministro de combustible, que comprende una tubería de suministro (12) conectada a una primera manguera de suministro (7) desde una cisterna del vehículo de suministro y a una segunda manguera (11) conectada al depósito de la aeronave. Un tirador (17) desplegable que facilita el transporte manual de la escalera por un operario. La escalera comprende dos patas (18) en la parte delantera del bastidor (1), así como una rueda delantera (5) que puede descender y ser elevada con el fin de permitir el apoyo de las patas (18) evitando desplazamientos indeseados de la escalera en servicio. Incorpora igualmente una bandeja (25) para depositar el tapón del depósito de combustible.