摘要:
The hoist mechanism comprises a hoist axle (10), at least one electric motor (16) for rotating the hoist axle, the electric motor having an axle, and an emergency use system for rotating the said electric motor axle. The emergency use system has been planned to be used when the supply of electric power to the electric motor has been interrupted, for example, because of a power cut or failure in the electrical system. The emergency use system includes a hydraulic motor (22), which is connected to the axle of the electric motor with the clutch (20). When the emergency use system is taken into use, the hydraulic motor is connected to the axle of the electric motor, after which the axle of the electric motor can be rotated by means of the hydraulic motor.
摘要:
The invention relates to a garage door opener designed for moving the planar garage door by lifting and rotating movements from the vertical closed position to the horizontal lifted up and open position. The opener consists of two lifter columns arranged at the opposite edges of a garage door having the vertical slides installed therein; garage door having rotational axes and support levers with rolling wheels; two wedge-shaped guides, installed in lifter columns, with edges for rolling wheels of the support levers of the garage door. The present garage door opening device, using the lifter columns and diagonal guides installed therein, is useful for the fact that no additional external and visually visible door driving and guiding mechanisms, installed inside the garage, are necessary. In addition, the garage door of this structure does not need any lock because the lifter column drive, support levers and guides in combination play the role of the lock, reliably blocking the closed garage door.
摘要:
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.
摘要:
An up and over door assembly is disclosed comprising a door (1) constructed of hinged horizontal panels (4) guided by inverted L-shaped tracks (not shown) between a vertical closed position and a raised open position in which the door panel lies horizonally above the door opening. Characteristically the lift mechanism comprises two pairs of preferably rodless piston and cylinder units (12,14), one pair (12) to lift and take the weight of the door initially, and the other pair (16) to pull it into the open position.
摘要:
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).
摘要:
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.
摘要:
An improved rolling gate (1), is provided with a DC electric motor (25) at a very low voltage, said motor is powered by an accumulator battery (21) associated to a battery charger (20) which can be connected to the 220 V power grid. In this way the gate (1) can be driven independently of the presence of the power grid voltage and the electric system (9) is more economical since it does not require the expensive protective means needed for the corresponding electric systems which work with 380 V current.
摘要:
An up and over door assembly is disclosed comprising a door (1) constructed of hinged horizontal panels (4) guided by inverted L-shaped tracks (not shown) between a vertical closed position and a raised open position in which the door panel lies horizonally above the door opening. Characteristically the lift mechanism comprises two pairs of preferably rodless piston and cylinder units (12,14), one pair (12) to lift and take the weight of the door initially, and the other pair (16) to pull it into the open position.
摘要:
The present disclosure pertains to a sliding overhead door operator system (100) for an overhead door (110) not employing a counterbalance mechanism. The operator system comprises an overhead door (110) including first and second side edges (160, 170) and a plurality of hingedly connected longitudinally extending panels (130a-130d). A first rodless cylinder (220a) is located adjacent the first side edge (160) of the door (110) and a second rodless cylinder (220b) is located adjacent the second side edge (170) of the door (110). Each of the first and second cylinders (220a, 220b) includes a carriage (235). First and second bracket assemblies (270a, 270b) are provided such that each assembly includes a first portion (275) secured to a respective carriage (235) of one of the first and second rodless cylinders (220a, 220b) and a second portion (280) secured to one of the plurality of panels (130a-130d). A controller (232) is adapted to actuate the first and second rodless cylinders (220a, 220b) to move the door (110) up and down.