Switch Lock Mechanism With Automatic Reset
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Solution Overview
Problem
Existing locking mechanisms for rocker switches are complex, difficult to handle, and do not adequately prevent accidental activation, which can lead to hazardous situations.
Innovation Solution
A locking assembly with a locking member connected to a support member, a resilient member, and a fastening element that automatically locks the switch in the OFF position and requires a secondary operation to turn it ON, using a cantilevered design and torsional force to secure the switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety pin locking mechanism is used, then the switch is protected from accidental activation, but the device becomes difficult to handle and does not fully protect against accidental tripping
Solution Approach 1:
Instead of requiring the user to actively engage a locking mechanism before operation, the invention inverts the approach by providing automatic locking after operation. The switch automatically engages the locking member when returned to the OFF position, reversing the traditional safety mechanism sequence and eliminating the need for manual locking engagement.
Solution Approach 2:
The locking mechanism performs self-service by automatically engaging and disengaging based on switch position. The locking member is automatically positioned by the switch mechanism itself during normal operation, eliminating the need for separate manual locking actions and making the device as easy to operate as a standard switch.
2Reliability
If a complex switch lockout mechanism with slide and rocker plate is used, then the switch can be locked, but the construction becomes complex and difficult for users to slide between lockout positions
Solution Approach 1:
The invention extracts the essential locking function from the complex multi-component mechanism and implements it through a single locking member that engages directly with the switch housing. This eliminates the unnecessary slide, rocker plate, and multiple positioning elements while retaining the core safety function.
Solution Approach 2:
The locking member serves multiple functions: it locks the switch in the OFF position, provides a visual indicator of lock status, and integrates with the existing switch structure. This multi-functionality replaces several separate components with a single element that accomplishes all necessary safety functions.
3Reliability
If a locking mechanism requires secondary operation to turn ON, then accidental activation is prevented, but the ease of operation is reduced
Solution Approach 1:
The locking mechanism dynamically adapts its state based on switch position. The locking member is automatically engaged when the switch is in the OFF position and automatically disengaged when the switch is turned ON, creating a dynamic system that provides safety only when needed and full operability when the switch is intentionally activated.
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 provides a secure, easy-to-use locking mechanism that prevents accidental activation, allowing safe operation with a single hand and automatic resetting to the OFF position when the switch is turned OFF.
Implementation Method 1
a resilient member having a first end and a second end... the resilient member applies force to the locking member
Data Source
AI summary
A locking assembly for locking a switch is provided. According to a preferred embodiment, a locking member is connected to a support member having a plurality of first grooves, a lower receiving element, a retaining tab, a resilient member and a fastening element. Preferably, the lower receiving element includes a securing socket element having at least a second groove and a third groove. According to a preferred embodiment, the fastening element preferably secures the locking member, the lower receiving element, and the resilient member with a panel to form a locking assembly that automatically locks the switch when the switch is in a selected position.