Door Opener Floating Force-Transmitting Element
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Solution Overview
Problem
Existing door openers face challenges in achieving high power transmission in a small installation space while maintaining high functional reliability and minimizing frictional forces for easy unlocking.
Innovation Solution
A door opener design featuring a force-transmitting element mounted in a floating manner between the armature and the changeover, allowing for relative movement and reducing friction, combined with an actuator like an electromagnet for remote operation, and a solid pin or sleeve for efficient force transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a door opener is designed to transmit high forces in a compact space, then force transmission capability is improved, but frictional forces increase making unlocking difficult
Solution Approach 1:
The force-transmitting element is designed with floating mounting that allows it to change its degree of freedom dynamically. In the locked position, it is constrained to transmit high forces rigidly. In the released position, it becomes movable relative to the anchor, allowing it to deflect and reduce frictional forces during the unlocking process. This dynamic adaptation resolves the contradiction between high holding force and easy unlocking.
2Volume of moving object
If the anchor and changeover are positioned close together to reduce installation space, then device compactness is improved, but frictional forces increase
Solution Approach 1:
The floating mounting of the force-transmitting element introduces dynamic movement capability that compensates for the reduced distance between anchor and changeover. This allows the system to maintain compact dimensions while reducing friction through the element's ability to deflect and move relative to the anchor during operation.
Solution Approach 2:
The force-transmitting element acts as an intermediary between the anchor and the changeover mechanism. Its floating mounting allows it to mediate the interaction between these components, enabling compact positioning while reducing direct frictional contact through its ability to move and deflect during the unlocking process.
3Force
If the force-transmitting element is rigidly fixed to transmit high forces, then force transmission is improved, but frictional forces increase and reliability decreases
Solution Approach 1:
The force-transmitting element transitions from a rigidly fixed state to a floating mounted state that allows movement. This dynamic capability enables the element to transmit high forces when needed while also being able to deflect and reduce frictional forces, thereby improving functional reliability by preventing sticking and ensuring consistent operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables high holding forces with reduced friction and compact installation, ensuring reliable operation and easy unlocking with minimal effort, suitable for heavy doors and security applications.
Implementation Method 1
The door opener actuator is designed as an externally powered actuator. This could be, for example, an electromagnet, particularly a lifting or pulling magnet.
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
The invention relates to a door opener (1) with a door opener latch (12) pivotably mounted in a door opener housing (11) and a remotely actuated locking device comprising an actuator (13) and a rotatably mounted changeover (2), which can be switched by the actuator (13) between a locked position, in which the door opener latch (12) is locked, and a release position, in which the door opener latch (12) is released. To create a door opener (1) that exhibits both high holding force and high operational reliability, it is proposed that a force-transmitting element (4) be arranged between the armature (3) and the changeover (2), which, in the locked position, bears directly against the changeover (2) and directly against the armature (3) and is floatingly mounted either on the armature (3) or on the changeover (2).