Abstract:
The crane (10) for lifting and transporting loads comprises: a base frame (12) capable of transferring the loads of the crane (10) onto a support surface; a lifting mechanism to lift and transport loads, associated with said base frame (12). The crane (10) is provided with a roll¬ over protection system comprising: a first portion (36) and a second portion (38) of the base frame (12), mutually hinged to one another, the first (36) and the second portion (38) being also constrained by at least one elastic means (40); and a control system capable of detecting the mutual position between the first (36) and the second portion (38) and of carrying out predetermined tasks of the crane (10) when said mutual position reaches a threshold condition.
Abstract:
Aparato de elevación ( 1 ) provisto de un elemento elevable (4) y un sistema hidráulico (5), que comprende un sistema de enclavamiento mecánico basado en al menos un elemento de bloqueo (7) conectado articuladamente a un extremo libre de un vástago móvil (5b) del sistema hidráulico (5), donde el elemento de bloqueo (7) comprende una ranura interior (8) por la cual es capaz de desplazarse una protuberancia (9) solidaria a una parte fija (5a) del sistema hidráulico (5). La ranura interior (8) está provista de al menos un entrante ( 10) en el cual se puede alojar la protuberancia (9) para bloquear el elemento elevable (4) en diferentes posiciones. El centro de gravedad del elemento de bloqueo (7) está dispuesto de forma que, en situación de desbloqueo, una línea imaginaria que une dicho centro de gravedad con la conexión articulada entre el extremo libre del vástago móvil (5b) y el elemento de bloqueo (7) forma un cierto ángulo con la vertical. El sistema de enclavamiento se bloquea automáticamente y es sencillo de utilizar.
Abstract:
A confined space entry device has modularized components which allow the device to be readily reconfigured. In particular, the extension arm of the device is removably secured to one leg of an elbow, while a post or mast is removably secured to the other end of the elbow. The other end of the mast is removably secured to a base which supports the confined space entry device. In one version of the invention, the device includes tubular members made of a polymer composite material. In another version of the invention, the elbow is asymmetric about a central axis and is formed of cast aluminum. The device can include sets of different-length elongated members which can be interchanged with elongated members secured within the device. In yet another version of the invention, the device incorporates a safety line connected to a lower end of the davit assembly or member and extending to an upper end of the davit assembly or member. The safety line should have a tensile strength equal or greater than to the dynamic rating of the post; should the member break above the lower end, the safety line would arrest the fall of a worker or person secured to the confined space device.
Abstract:
A lifting system for removing and installing equipment on aircraft. The lifting system comprises a base (100) and a lifting assembly (200) supported by the base. The lifting system includes outriggers (140) and at least one offset outrigger (150), which are connected to the base to provide additional stability. The lifting assembly includes a boom (201-204) having telescoping sections, a lifting arm (205) and a 2 speed winch assembly (250, 257) for controlling lifting cables. The boom is telescoped using chains (200, 222, 224) which are fitted with an end block (213) which activates a pawl arrangement (215, 216) to prevent stretch. The assembly is provided with an inclinometer (310) and a device (265, 271) to reduce cable tangle.
Abstract:
The invention concerns a mini-crane comprising a base (1), a mast (2) mounted above the base (1), a jib (3) in several sections (31, 37, 30) mutually articulated along vertical pivot axes (38, 36), and a counterweight (30) balancing the load (6). The distal section (30) of the jib (3) is articulated in vertical oscillation (141) about a horizontal oscillation axis (41), and stressed upwards by a compression spring (43) whereof the extension is limited by a stop. A winch (8) stresses the chain (7) linked to the load (6). The elastically stressed distal section (30) thus constitutes an elastic linkage with a threshold, which provides flexibility for supporting the load (6) and facilitates positioning for constructing a wall.
Abstract:
A jig (10) comprises a wheeled carriage (11), a post (12) upstanding from the carriage (11), an elongate member (31) an end portion of which is located relative to an upper end portion of the post (12) so that the elongate member (31) is moveable arcuately upwardly and downwardly on a first axis (A) and is rotatable on a second axis (B) extending at right angles to the first axis (A), and article engaging means (66, 67, 68) located at an end portion of the elongate member (31) remote from the first and second axes (A, B) and moveable towards and away from the elongate member (31) on a third axis (C) extending transversely of the elongate member (31).
Abstract:
This invention relates to a hoist device comprising a linear actuator, said linear actuator (6) comprising an electric motor drive (5), an outer tube (7) and an inner tube (8) that is axially movable in an out of the outer tube (7), said hoist device (1, 13, 12) comprising a lifting arm (1) and a frame structure (12, 13), wherein said lifting arm (1) is pivotally attached to said frame structure (12, 13) and said linear actuator (6) is pivotally attached at one end to said frame structure (12, 13) and at a second end to said lifting arm (1), wherein further a manual lowering device (9) arranged to enable lowering of said lifting arm (1) without use of said motor drive (5), said lowering device (9) being connected between the outer end of the inner tube (8) and an attachment device (10) of said lifting arm (1), said manual lowering device (9) comprising a stationary part (22), a rotatable part (23), a coupling (24) and a manually an operated transmission device (20, 21), wherein said stationary part (22) includes a first threaded member (201D, 319B), preferably in the form of a stub shaft, and said rotatable part (23) is connected to a threaded, clamp activating second threaded member (215, 315), preferably in the form of a nut device, interacting with said first threaded member (201D, 319B), wherein the axial position of said clamp activating second threaded member (215, 315) is arranged to control said coupling (24) to be in engaged or disengaged state and wherein said manually operated transmission device (20, 21) is arranged to control the axial position of said clamp activating second threaded member (215, 315).
Abstract:
Útil para el cambio de las pinzas en frenos de disco que comprende una base móvil mediante unas ruedas y que se comprende un contrapeso caracterizado porque de la base dimana perpendicularmente un mástil telescópico que comprende un regulador de altura; y donde dicho mástil comprende en su parte superior un cuerpo en "L" invadida cuyos extremos están unidos mediante una placa que comprende una pluralidad de tornillos de acople; y donde dicha placa es abatible respecto de un eje de abatimiento regulable en su ángulo de inclinación gracias a un regulador de inclinación.
Abstract:
A panel hoist (100) can be used to hold any of a variety of panels, such as a door attachable to a semi-tractor trailer, and to maneuver the panel for putting into a position for mounting the panel to a panel mounting point or for removing a panel disconnected from a panel mounting point. Various types of suction cups and supplemental panel holders can be used to hold the panel while the panel is moved or prepared for movement. A panel hoist can allow a single person to maneuver panels in various ways instead of having to rely on multiple people to maneuver the panel. Maneuvering the panel can include raising, lowering, or rotating the panel. Various panel hoist components can be configured as a kit.
Abstract:
Actuator of the type where a driving rod (11) is extended by a nut (10) on a driven spindle. A manually operated emergency lowering device (14) for the driving rod (11) is mounted between the driving rod (11) and a mounting bracket (16) at the end thereof . The emergency lowering device (14) comprises a first cylindrical part (15) connected with the mounting bracket (16) and a second cylindrical part (17) connected with the driving rod (11) . The two cylindrical parts are coupled together by a screw spring (21) . The spring is released by an operating grip (19) constructed as a bushing in which the one end (22) of the spring (21) is secured. The other end (23) of the spring (21) is secured in the cylindrical part (17) connected with the driving rod (11) . Rotation of the bushing causes the spring (21) to be released, whereby the driving rod (11) may be screwed back by the manually applied torque.