Adjustable Panic Bar Arms for Universal Lock Compatibility
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Solution Overview
Problem
Existing panic bar devices are not adaptable to different locks on the market, requiring specific configurations for each lock type, which limits their universal application and flexibility in force application.
Innovation Solution
A panic bar device with a rotating shaft and pivotally coupled arms that can be adjusted to various inclinations and lengths, allowing compatibility with multiple lock types by selecting suitable pairs of arms based on lock characteristics and required force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed configuration panic bar device is used for a specific lock type, then the device can be simple in structure, but it cannot be adapted to different lock types
Solution Approach 1:
The patent applies the dynamics principle by making the arms adjustable in length and inclination rather than fixed. The arms can be reconfigured to different positions using adjustment mechanisms (such as holes for positioning and fastening means), allowing the same device to adapt to various lock types and positions. This transforms a static structure into a dynamic one that can change its configuration based on installation requirements.
Solution Approach 2:
The patent implements parameter changes by allowing the arm length and inclination angle to be varied. The arms have multiple positioning options (e.g., different holes at different distances from the pivot point) that enable changing the geometric parameters of the mechanism. This allows the device to be adapted to different lock positions and types without redesigning the entire structure.
2Adaptability or versatility
If multiple specific configurations are provided for different lock types, then adaptability to different locks is improved, but device complexity and variety of components increases
Solution Approach 1:
Instead of providing multiple fixed pairs of arms for different lock types, the patent uses a single pair of arms that can be dynamically adjusted. The arms incorporate adjustment mechanisms (such as multiple holes along their length) that allow them to be repositioned to match different lock configurations, eliminating the need to manufacture and stock multiple different arm pairs.
Solution Approach 2:
The patent applies universality by designing a single arm configuration that can serve multiple functions and adapt to various lock types. The adjustable design allows the same arm pair to be used with different lock positions, orientations, and types, making one component universal rather than requiring specialized components for each application.
3Force
If the arms are fixed in position, then the device structure is simple, but the ability to apply proper force to different locks is limited
Solution Approach 1:
The patent enables force optimization by allowing changes in the arm configuration parameters. By adjusting the arm length and inclination angle to match the specific lock position and resistance characteristics, the mechanism can apply force more effectively. The adjustment holes and fastening means enable selecting the optimal configuration for each installation scenario.
Solution Approach 2:
The dynamic adjustability of the arms allows the force application characteristics to be optimized for each specific lock. Rather than having a fixed geometric relationship, the arms can be repositioned to create the most efficient force transmission path, accommodating variations in lock position, orientation, and mechanical resistance.
Data Source
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AI summary
Panic bar device (100) comprising a first bearing assembly (1) and a second bearing assembly (1'), a first arm (2) and a second arm (2') coupled to the first bearing assembly and second bearing assembly (1, 1') respectively by means of an operating shaft, and a bar (3) coupled to the first arm and second arm (2, 2'). The first arm (2) and the second arm (2') are selected from a plurality of pairs of arms (2, 2') configured for having different inclinations in the panic bar device (100) with respect to a front surface (104) of the door (101) in a standby state of the panic bar device (100) in which the bar (3) is not pushed, the different inclinations being obtained by varying the angular orientation of the operating shaft with respect to the arms (2, 2').