Abstract:
An improved hydraulic lifting sectional security door, capable of being installed at an entry space to a room, comprising a pair of profiles (PRF) near to each frame (STP) of the entry space, a series of panels (PNL) articulated together and a device or group (GP) for lifting the panels (PNL), which includes a hydraulic cylinder (CI), to which fixed and mobile lifting pulleys (PL1, PL2, PL3, PL4) are fixed; according to the invention the lifting cables (FA1, FA2) start from stops (FE1, FE2), which are preferably next to the cylinder (CI) and their exit in the direction of the return pulleys (PU1, PU2) takes place in a balanced manner, on the two outer sides of the lifting pulleys (PL1, PL2, PL3, PL4), so a s to be able to obtain a reversible container (CAS), which allows the hydraulic cylinder (CI) and the exit of the hydraulic tube (TU) to the right or left of the entry space, according to the user's desires and requirements.
Abstract:
An integral formwork system for the construction of pits (20) for loading ramps (10), comprising a set of appropriately reinforced sheet metal panels, piping and sections, bolted to each other; in particular, the formwork is of disposable type, built with specific construction, lightweight, resistant, and compact in size, in order to permit single operation casting for paving (PCL), from the pit level of the formwork without the need to provide special and expensive connecting structures such as flexible joints. Moreover, the system in question also permits the construction of overhang ledges (23) without special moulds; when work is completed, these overhang ledges (23) are able to bear the weight of the loading ramp (10) and the vehicle positioned on it (17).
Abstract:
A hydraulic cylinder with multiple action, especially for the lifting tailgates of industrial vehicles, comprising a body (CIL) closed by a bottom (FO) inside which slides a piston (PI), having a rod (AS) integral with the piston (PI), the bottom (F), moreover, having a chamber (CA) hydraulically connected to an internal area of the cylindrical body (CIL), in which between the chamber (CA) and the internal area of the cylindrical body (CIL), there are valve means to allow a passage of variable flows of a fluid from the chamber (CA) to the internal area of the cylindrical body (CIL) and vice-versa. In particular at least two different speeds are obtained with reference to the extension of the cylinder.
Abstract:
The improvement consists in providing a motor-driven gate (2) with a 12 Volt DC electric motor (22), said motor being powered by an accumulator battery (18) associated to a battery charger (17) which can be connected to the 220 V power grid. In this way, the gate (2) can always be automatically driven independently of the presence of the power grid voltage. The electric system (6) and the gate (2) according to the present invention, besides being reliable, are more economical and safer with regard to electric shocks.
Abstract:
A blocking device for wheel-mounted loads, in which on a lifting platform (12) defining a loading surface there is provided a seat housing portions of a section bar (15), of which at least one (14) is rotatably movable between a position within said seat and a raised position so that when in this latter position it prevents any wheel-mounted loads present on the lifting platform from moving.
Abstract:
The present invention relates to a tank for hydraulic systems with high safety against the infiltration of air from outside, comprises a container (1) which internally defines a cavity (2) for the containment of the working liquid and which is provided with at least one inlet port (3) and/or with one outlet port (4) connectable to a hydraulic circuit. The tank is insulated in an airtight manner at least from outside inwards and is elastically deformable at its operating pressures.