Door Seal Pivotable Trigger Reduces Actuation Force
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Solution Overview
Problem
Existing door seals with triggers on the lock side require significant force to actuate due to the angular momentum of the closing door not being easily redirectable, leading to potential damage and wear, especially when the trigger direction needs to be almost 90° redirected.
Innovation Solution
A pivotable trigger design that converts the relative movement between the door leaf and frame into a linear movement, with a stop surface angle optimized for better force absorption and a spring element that can be tensioned, allowing for reduced actuation force and minimized wear, featuring a two-part trigger with a linearly displaceable and pivotable component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a trigger on the lock side is used to actuate the seal, then the seal can be activated when the door closes, but the angular momentum of the closing door cannot be easily utilized and significant force is required to actuate the trigger
Solution Approach 1:
The patent changes the geometric parameter of the stop surface angle to optimize force transmission. By setting the stop surface angle between 45° and 90° relative to the door frame, the trigger efficiently converts the perpendicular movement of the door leaf into linear movement along the rod, reducing the actuation force required while maintaining effective seal activation.
Solution Approach 2:
The trigger acts as an intermediary mechanism between the door leaf movement and the rod. It converts the perpendicular movement of the door leaf into linear movement of the rod through its pivoting action and optimized stop surface geometry, enabling efficient force transmission without requiring significant actuation force.
2Use of energy by moving object
If the trigger direction is redirected by almost 90° to utilize the impulse of the closing door, then the impulse can be utilized, but the force transmission is inefficient and causes damage and wear
Solution Approach 1:
The patent optimizes the stop surface angle parameter between 45° and 90° to balance impulse utilization and force transmission efficiency. This angular parameter allows the trigger to effectively convert the door's closing impulse into useful actuation force while minimizing harmful lateral forces that cause damage and wear to the door frame and trigger components.
3Object-affected harmful factors
If a larger contact surface is selected for the stop surface, then the force transmission is improved and wear is minimized, but the cross-section of the channel in the holding means must be larger
Solution Approach 1:
The patent optimizes the stop surface angle parameter to achieve efficient force transmission with a compact contact surface. By setting the angle between 45° and 90°, the trigger achieves effective force transmission and minimized wear without requiring a large channel cross-section, maintaining a compact seal structure.
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
The solution reduces the required actuation force and minimizes damage and wear by optimizing the stop surface angle and using a spring element, enabling effective sealing with improved force application and reduced risk of damage.
Implementation Method 1
a spring element that can be tensioned
Data Source
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AI summary
The invention relates to a seal, in particular for doors, French doors or windows, - comprising at least one retaining means (1) that can be attached to the sash of a door, French door or window, - comprising a sealing strip (2) that has a sealing element suitable for sealing against a surface, for example a floor, a ceiling or a lintel, - comprising at least one movement mechanism that is connected on the one hand to the at least one retaining means (1) and on the other hand to the sealing strip (2) and by means of which the sealing strip (2) can be moved in a first direction between a release position in which the sealing element has a distance from the surface and a sealing position in which the sealing element rests against the surface, and - comprising a trigger (3),which is mounted in or on the holding means (1) and which is coupled to a rod (41) of the movement mechanism which is displaceable perpendicular to the first direction and parallel to the sealing strip (2) in a second direction and by means of which a force can be introduced into the movement mechanism in order to move the sealing strip (2), wherein the trigger (3) has a stop surface (3221) with which it can strike a stop to introduce the force, wherein, - the trigger (3) or a part (32) of the trigger (3) having the stop surface (3221) is pivotable about an axis which extends in the first direction or parallel to the first direction, and - that the trigger (3) has a spring element (33) which presses the pivotable trigger (3) or the pivotable part (32) of the trigger (3) into a stop position in an unactuated state of the seal, wherein the stop surface (3221) is substantially inclined to the second direction in the stop position.