Abstract:
A torsion spring torque assembly for applying torque to a torsion spring of a garage door system. The assembly comprises a separable housing, an adjustable support member, a gear assembly and a cooperating and movable coupling shaft assembly having a driven gear and a hub to engage the winding cone of a garage door torsion spring. The gear assembly has a driver gear which engages the driven gear of the coupling shaft to wind a garage door torsion spring. The driver gear of the gearbox assembly may be operated by means of a screw gun and is constructed to provide bi-directional rotation for winding and unwinding a garage door torsion spring.
Abstract:
A swing leaf actuator has an output shaft and a drive mechanism with at least one drive portion. The drive mechanism is operatively connected to the output shaft to be driven in at least one direction. The output shaft has a connecting portion that is connected to a swing leaf. The output shaft is translationally movable along its axis of rotation. A method for mounting the swing leaf actuator includes inserting the drive mechanism into a housing of the swing leaf actuator. Components disposed on the output shaft in a torque-proof manner are aligned such that the output shaft is pushed into the components. The output shaft is inserted into the components to be torque-proof with respect to each other. A mounting device includes elements configured to align the output shaft with regard to the components disposed on the output shaft in a torque-proof manner.
Abstract:
Hinge (1) with one pivoting (2) and one fixed (3) hinge leaf, with a physical hinge axle (7) similar to a hollow cylinder which is common to both hinge leaves (2, 3) with an imaginary mathematical axis (4). The hinge axle (7) is connected unmovably to the pivoting (2) hinge leaf and mounted rotatably on a journal bearing (5-1, 5-2), the body of which journal bearing is connected rigidly with the fixed (3) hinge leaf. In the hinge axle (7) a spiral torsion spring (8) arranged, the first (8-1) of whose two ends is connected unmovably to the hinge axle (7) and the second (8-2) of whose two ends is connected via a worm-gear unit consisting of a worm wheel (9) and endless screw (6) to the journal-bearing body of the journal bearing (5-1). The worm wheel (9) is arranged in the journal bearing (5-1) to rotate around the axis (4) of the hinge axle (7) and is fixed permanently to the second (8-2) of the two ends of the spiral torsion spring (8). The adjustment of the worm wheel (9) and consequently the adjustment of the tension of the spiral torsion spring (8) takes place by turning the endless screw (6) which is arranged in the fixed part of the journal-bearing body of the journal bearing (5-1) and into which the teeth (9-10) of the worm wheel (9) engage.
Abstract:
A drive train for a pivotable flap of a motor vehicle includes a holding device which can hold the flap in at least one open position, a first element which can be driven by a drive motor, and a second element connected to the pivotable flap to pivot the flap in response to movement of the first element. When the second element is moved along a path of motion relative to the first element counter to a specific spring force, a sensor generates a signal indicating relative motion of the elements, and a control device releases the holding device in response to the signal, whereby the flap can be moved manually by applying a force counter to the spring force.
Abstract:
A door closer assembly is provided, including a valve regulating an amount of hydraulic fluid that flows through the valve. The amount of hydraulic fluid flowing through the valve controls a force generated by the door closer assembly on a door. A first sensor measures an angular position of the door, and a second sensor measures an angular position of the valve. The angular position of the valve determines the amount of hydraulic fluid flowing through the valve. A controller controls the adjustment of the valve based on the angular position of the door and the angular position of the valve.
Abstract:
A winding assembly used in conjunction with a door having a counterbalance system operable to offset the weight of the door, the counterbalance system including an axle rotatably supported on a pair of support brackets located at each side of the door and a counterbalance spring adapted to apply a counterbalancing force to the door. The winding assembly including a rotatable driver coupled to the counterbalance spring, the driver having a tool receiving portion, a gear wheel supported on the driver and rotatable therewith, the gear wheel defining a plurality of teeth, wherein at least one of the teeth carries a detent, whereby the detent provides a positive step to the pawl and gives an audible indication of the position of the gear wheel, and a lock assembly used in conjunction with a door system located within an opening defined by a frame, the door system including a door movable between an open position and a closed position, the door being supported on a pair of support brackets at either end of the door, a counterbalance system adapted to apply a counterbalancing force to the door, and a winding assembly adapted to adjust and maintain the counterbalancing force, the locking assembly having a lock bracket coupled to the winding assembly and fastenable to the frame to fix the winding assembly in a selected position, and a catch extending from the lock bracket and adapted to anchor the lock bracket to the frame upon unfastening of the lock bracket.
Abstract:
The invention relates to a device for controlling a winding speed of a winding roll for a screen or shade which adjusts resilience of a torsion spring to increase or decrease the winding speed of the winding roll, preventing mechanical friction with improved operational capability. In the device, a worm wheel is integrally formed in a shaft supporting part receiving an end of the winding shaft, and is rotatably in contact with a stopper plate enclosing a side of an outer shell. Also, an adjustment member having an end penetrating through a front portion of the outer shell is disposed horizontally adjacent to the worm wheel and perpendicular to the winding shaft. Further, the worm wheel is in mesh with a worm integrally formed in a middle portion of the adjustment member.
Abstract:
A hinge including a first hinge member and a second hinge member that is rotatably coupled to the first hinge member. The hinge has a torsion spring with a first end of the spring secured relative to the first hinge member and a second end adjustably securable relative to the second hinge member. An adjustment mechanism is included and is capable of disengaging the second end of the spring relative to the second hinge member and into engagement relative to the first hinge member to allow rotation of the second hinge member relative to the second end of the spring, and then re-engage the second end of the spring relative to the second hinge member, thereby changing engagement position of the second end of the spring relative to the second hinge member and adjusting the torsional spring tension.
Abstract:
The invention relates to an opening device for a flap of a vehicle, in particular for a rear flap, which can be pivoted about a horizontal pivot axis on the upper edge of an opening in the vehicle body from a downwardly directed closed position into an upwardly directed open position. It has a gas-filled spring coupled to the body by the free end of its piston rod at a distance from the pivot axis and coupled to the flap by its pressure tube at a distance from the pivot axis. In this case, the gas-filled spring in the extension direction applies a force to the flap in the opening direction. Furthermore, there is an actuator by means of which a torque can act on the flap in the opening direction. The actuator is an energy accumulator which, from its tensioned position, applies a force to the flap during its opening stroke from the closed position until a relaxed position of the energy accumulator is reached.
Abstract:
Apparatus for tensioning torsion spring, shaft-mounted in association with a spring cone, has a central ratchet assembly with two spaced, cogged ratchet wheels, slotted to allow the assembly to be rotatably positioned over the shaft. The ratchet assembly is connectable to the spring cone so that the spring cone will rotate with the ratchet assembly. The ratchet wheel slots are closed off by cogged bridging elements that create a continuous cogged perimeter around each ratchet wheel. Pawl-equipped levers are positioned over the ratchet wheels with the pawls engageably aligned with the ratchet wheel cogs, and then operated in alternating fashion to rotate the ratchet assembly and spring cone, thus tensioning the spring. Upon achieving a desired spring tension, the spring cone may be secured to the shaft, whereupon the bridging elements may be retracted from the ratchet wheel slots to permit removal of the apparatus from the shaft.