Anti-panic Push Bar Modular Drive Carrier Profile
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Solution Overview
Problem
Existing anti-panic push bars for escape doors are complex in design, require high installation effort, and have mechanical demands that result in high forces during actuation, making them difficult to manufacture and maintain, while also occupying significant space.
Innovation Solution
The anti-panic push bar features a mechanical actuating handle with a drive device comprising a drive motor and spring accumulator, arranged between the base profile and actuating handle on a common mounting plate, with essential components mounted on a separate carrier profile that can be prefabricated and easily assembled, reducing assembly steps and increasing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components are attached directly to the base profile, then structural stability is achieved, but installation effort and device complexity increase
Solution Approach 1:
The patent divides the mounting structure into two segments: a base profile and a separate carrier profile. The carrier profile is pre-assembled with all drive components (motor, spring accumulator, transmission elements) outside the housing, then inserted as a complete module into the base profile. This segmentation allows for simplified installation while maintaining structural stability through the integrated carrier profile design.
2Stability of the object's composition
If the anti-panic push bar is designed as a single integrated unit, then structural stability is improved, but manufacturing and maintenance difficulty increase
Solution Approach 1:
The patent segments the anti-panic push bar into a stationary base profile and a removable carrier profile containing all moving components. This allows the base profile to be manufactured and installed separately, while the carrier profile with drive mechanisms can be pre-assembled, tested, and replaced as a complete unit, significantly simplifying manufacturing and maintenance operations.
Solution Approach 2:
The carrier profile is designed as a dynamic, removable module that can be easily inserted and extracted from the base profile. This dynamic design enables flexible manufacturing approaches and simplifies maintenance, as the entire drive mechanism can be replaced without disassembling the base structure or door mounting.
3Force
If high forces are transferred to the housing during actuation, then actuation force is sufficient, but mechanical stability and reliability decrease
Solution Approach 1:
The patent extracts the high-force transmission path from the housing structure by introducing a dedicated carrier profile. The carrier profile absorbs and contains all forces generated during motor operation and spring charging, including the high compressive forces on the spring accumulator. This prevents force transfer to the housing, eliminating the risk of housing deformation while maintaining sufficient actuation force.
4Volume of moving object
If components are distributed throughout the housing, then space utilization is maximized, but installation and maintenance complexity increase
Solution Approach 1:
The patent merges all drive components (motor, spring accumulator, transmission elements, control electronics) onto a single carrier profile that functions as an integrated assembly. This consolidated design maintains compact space utilization within the housing while dramatically simplifying installation, as the entire drive system is installed as one module rather than multiple distributed components.
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 simplifies manufacturing and maintenance, enhances mechanical stability, reduces installation space, and improves functional reliability by absorbing high forces through the common mounting plate, ensuring efficient operation and compact construction.
Implementation Method 1
a spring accumulator (52) which can be charged by the drive motor (51) and/or by the actuating handle (21) and has a supporting effect for actuating the door lock (16)
Implementation Method 2
a drive motor (51) and a spring accumulator (52) which can be charged by the drive motor (51)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to an anti-panic push bar (2) for unlocking a door lock (16) of an escape door or emergency exit door in a panic situation. The anti-panic push bar (2) has an operating handle (21) for manually unlocking the door lock, which, when manually actuated via a sliding device (3), unlocks the door lock (16). The anti-panic push bar further comprises a rechargeable spring accumulator, which can be charged by a drive motor (51) or via the operating handle (21) and serves to assist in unlocking the door lock (16).In order to achieve a structurally simple yet mechanically robust and compact design of the anti-panic push bar (2), it is proposed that the drive unit (5) is arranged between a base profile (23) and the actuating handle (21) and has a common mounting plate (54) on which both the drive motor (51) and the spring accumulator (52) are attached, and that the slide device (3), the transmission device (4), and the drive unit (5) are held on a continuous support profile (24), and that the support profile (24) can be inserted into and connected to the base profile (23).