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:
An airtight sectional door (10), of the type comprising a series of panels (PNL), preferably insulated and hinged together, consisting of metal sheets containing an insulating material and having a smooth outer surface (SU); the joint between the panels (PNL) is equipped with a gasket (GU), which seals the air passage between the panels (PNL) and, moreover, the base panel (PNB) has at the bottom an elastic gasket (GE), preferably made from rubber, which allows the gap existing between said base panel (PNB) and the ground (GL) to be sealed, thanks to the weight force of the door (10). The sealing of the panels (PNL) is also ensured at the two sides of the door (10) and against the lintel (16), thanks to the constructive feature of respective vertical and horizontal sealing gaskets (GUG, GSU).
Abstract:
An emergency device for electric motors (11) of electrohydraulic apparatuses and electromechanical actuators is realised by arranging a connection seat for a drill (13) powered by compressed air, batteries or electricity at the end of the axis of the electric motor (15), which is opposite the side connected to the hydraulic pump or to the geared motor of an electrohydraulic or electromechanical power unit (12); in such a way, in the case of a lack of electrical energy, the drill (13) is able to make the motor (11) rotate, thus actuating the mechanism of the electrohydraulic or electromechanical power unit (12).
Abstract:
A lifting tailgate (SP) with interchangeable elements and direct suspension comprising at least one bearing tube (TP) adapted to be connected to a rear portion of an industrial vehicle, the bearing tube (TP) supporting, by means of first flanges (FL), a fork (FO), controlled by at least two cylinders (CS, CJ), which carries a platform (PT), where the first flanges (FL) are made of self-lubricating material.
Abstract:
A device to assure the safety of the automatic mechanization of sectional doors (POR),of the type comprising at least a hydraulic cylinder (CI), connected with at least one hydraulic circuit (MI), which allows the opening or closing of the sectional door (POR) through a hydraulic motor (M), suitable for operating at least one pump for the circulation of a fluid within at least one pipe (TU) of the hydraulic circuit (MI); between the hydraulic cylinder (CI) and the exhaust tank (SC) placed downstream the engine (M), at least one valve (NS) normally closed, inserted, in particular, between the pipe (TU) and the exhaust tank (SC), and a system for detecting possible leakage of the fluid from the hydraulic circuit (MI) are provided.
Abstract:
In order to avoid, automatically, that the rolling gate (1) bumps into someone or something while they pass through the gate opening and to realise said rolling gate (1) in such a way that it has a simple, reliable and inexpensive structure, photoelectric cells (14, 15), which detect the presence of someone or something passing through the gate, are positioned at the ends of the folding arms (6) and they are positioned at a distance, from the lower edge (9) of the rolling gate (1), which is defined in function of the closing speed of the gate (1).
Abstract:
The improvement consists in providing the drive means (2,2A) of the loading ramp (1) with a DC electric motor (28) at a very low voltage, said motor is powered by an accumulator battery (24) associated to a battery charger (23) which can be connected to the 220 V power grid. In this way the loading ramp (1) can be driven independently of the presence of the power grid voltage and the electric system (9, 9A) is more economical since it does not require the expensive protective means needed for the corresponding electric systems which work with 380 V current.
Abstract:
A high safety hydraulic device for the operation of sectional overhead doors (POR), of the type comprising at least one hydraulic cylinder (CI), connected to at least one hydraulic circuit (MI), which allows the opening or closing of the overhead door (POR), through an electro-hydraulic motor (M), suitable for operating at least one pump for the circulation of a fluid within at least one pipe (TU) of the hydraulic circuit (MI); in particular, between the hydraulic cylinder (CI) and the discharge tank (SC) placed downstream the motor (M), is provided at least one first solenoid valve (VA), normally closed, placed at the outlet of the hydraulic cylinder (CI) and preferably integral with it, and a second solenoid valve (NS), normally closed, placed between the pipe (TU) and the discharge tank (SC).