Abstract:
The present invention essentially comprises an activation unit of an overhead door backup spring system operable upon failure of a spring, and method of using an activation unit. The activation unit has a rotating and sliding plunger that is operated upon failure of a spring. The activation unit can be used with an engagement unit that is engageable with an auxiliary spring to transfer torque from the auxiliary spring to an overhead door shaft. A plunger sleeve supports and guides the plunger by way of a sleeve slot that receives a plunger pin extending from the plunger. A plunger spring biases the plunger, while the sleeve slot retains the plunger in a biased state until activation by a portion of the spring upon failure of the spring.
Abstract:
A lock module housing containing the components of a preferred embodiment is physically mounted to the rear of a gate drive motor of an automatic gate system. A solenoid front shaft, when the solenoid is de-energized, is pushed into a sprocket attached to the drive motor, thus preventing the motor shaft from turning. To release the drive motor, the solenoid is energized. The solenoid rear shaft contacts a limit switch to indicate to the controller that the drive motor is indeed unlocked. When the controller is about to move the gate, energizing the solenoid retracts the shaft and allows normal operation of the gate control system. At the end of the gate cycle, the solenoid is de-energized and the drive motor is once again locked. In the case of a manual release, a key lock is turned from a first position to a second position to unlock the motor shaft. A mechanical linkage arm attached to the key lock pulls the solenoid shaft to its energized position, which in turn contacts the limit switch. The gate can then be back driven manually.
Abstract:
The present invention essentially comprises a spring engagement system of an overhead door backup spring system operable upon failure of a main spring, and method of using the spring engagement system. The spring engagement system has a spring engagement unit operably associated with a spring, and an engagement unit operably associated with the spring engagement unit. The engagement unit is engageable with the spring engagement unit in an engaged position upon activation thereof. The engagement unit can transfer torque from the spring to a shaft in the engaged position. The engagement unit is actuating by engagement of an activation unit, which is actuated upon failure of the main spring associated with an overhead door.
Abstract:
The disclosure relates to a drive device for embarkation and disembarkation devices of public transportation vehicles, comprising a drive unit arranged within and drives a rotary column. The drive unit rotates the rotary column about the rotary column longitudinal axis Z-Z during opening and closing processes of the embarkation and disembarkation devices. The drive device is supported on the vehicle. The drive unit has a drive motor, a non-self-locking reduction gear, and a controllable blocking means with which a rotation of the rotary column can be blocked. The drive device further includes a sensor for detecting the magnitude of an external force, the force acting on the drive device. The drive device further has means for analyzing signals of the sensor and for triggering the blocking effect of the blocking means when an external force measured by the sensor exceeds a threshold.
Abstract:
An actuating system, comprising a base part and a moving part, which can be moved by a compressively preloaded piston/cylinder assembly that comprises a cylinder and a piston rod, wherein a piston on the piston rod divides the cylinder into two working chambers, wherein the base part has an externally powered drive device that stands in operative connection with the moving part and functions in opposition to the operating force of the piston/cylinder assembly, wherein a control system monitors the motion of the moving system and detects an obstacle when a parameter representing the motion deviates from a stored parameter by a threshold limit, wherein the actuating system in the unpowered state holds the moving part with the aid of a locking device, wherein the locking device is formed by a flow connection between the working chambers of the piston/cylinder assembly and a pilot valve for controllably blocking fluid flow through the flow connection.
Abstract:
The present invention essentially comprises an overhead door backup spring system and method for providing an auxiliary spring counterweight to operate an overhead door shaft upon failure of a spring. The system has an activation unit, an engagement unit operably associated with the activation unit, and an auxiliary spring engagement unit operably associated with the engagement unit and an auxiliary spring. The engagement unit is engageable with the auxiliary spring to transfer torque from the auxiliary spring to the overhead door shaft. In an engaged position the engagement unit is engaged with the auxiliary spring engagement unit upon operation of the activation unit when the spring fails. In a non-engaged position the engagement unit is in non-engagement with the auxiliary spring engagement unit.
Abstract:
The present invention essentially comprises an overhead door backup spring system for providing an auxiliary spring counterweight to operate an overhead door shaft upon failure of a spring. The system has an activation unit, a control assembly, an engagement assembly operably associated with the activation unit, and an auxiliary spring engagement assembly operably associated with the control and engagement assemblies. The control assembly has an engagement block engageable with a spring post of the auxiliary spring assembly. The engagement assembly has an engagement post engageable with the spring post to transfer torque from the auxiliary spring to the overhead door shaft. An engaged position has the engagement post not engaged with the spring posts while the engagement block is engaged with the spring post. A non-engaged position has the engagement post engaged with the spring post, and the engagement block not engaged with the spring post.
Abstract:
The invention relates to a method for controlled braking of an electrically powered lifting action in the event of a failure, such that at least one of the nominal values for “rotational direction” and/or “operating speed” and/or “door position” and/or “motor capacity” and/or “motor current” is ascertained and compared with an actual value, and such that a motorized braking process or motorized stopping process is triggered by a departure of the actual value from the nominal value that lies outside a predetermined range. In addition the invention relates to a device for applying said method.
Abstract:
A drive device for embarkation and disembarkation devices of public transportation vehicles includes a drive unit arranged within and for driving a rotary column. The drive unit rotates the rotary column about the rotary column longitudinal axis Z-Z during opening and closing processes of the embarkation and disembarkation devices. The drive device is supported on the vehicle. The drive unit includes a drive motor, a non-self-locking reduction gear, and a controllable blocking component with which a rotation of the rotary column can be blocked. The drive device further includes a sensor for detecting the magnitude of an external force, wherein the force acts on the drive device. The drive device further includes an element for analyzing signals of the sensor and for triggering the blocking effect of the blocking component when an external force measured by the sensor exceeds a threshold.
Abstract:
The present invention essentially comprises an overhead door backup spring system for providing an auxiliary spring counterweight to operate an overhead door shaft upon failure of a spring. The system has an activation unit, a control assembly, an engagement assembly operably associated with the activation unit, and an auxiliary spring engagement assembly operably associated with the control and engagement assemblies. The control assembly has an engagement block engageable with a spring post of the auxiliary spring assembly. The engagement assembly has an engagement post engageable with the spring post to transfer torque from the auxiliary spring to the overhead door shaft. An engaged position has the engagement post not engaged with the spring posts while the engagement block is engaged with the spring post. A non-engaged position has the engagement post engaged with the spring post, and the engagement block not engaged with the spring post.