Serviceable Keypad Lock Housing With Rotatable Baseplate Attachment
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Solution Overview
Problem
Existing locking systems, such as safe mechanisms, often do not provide easy access to components like keypads for servicing or replacement, making maintenance and upgrades difficult.
Innovation Solution
An attachment system comprising a baseplate with circumferential cutouts and a housing with protrusions that engage to prevent withdrawal, along with a locking device accessible from outside, allowing for rotatable locking and unlocking of the housing to the baseplate, enabling easy service and replacement of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the housing unit is permanently fixed to the baseplate, then the stability and security of the locking system is improved, but the ability to service or replace components inside the housing unit deteriorates
Solution Approach 1:
The locking system is divided into separable components: a baseplate that remains fixed and a housing unit that can be detached. The housing contains the keypad and internal components, while the baseplate provides mounting structure. This segmentation allows the housing to be removed for servicing while the baseplate remains stable and installed.
Solution Approach 2:
The connection between the housing and baseplate transitions from a static permanent fixture to a dynamic removable attachment. The housing can be attached securely during normal operation and detached when servicing is needed, providing adaptability between stability and accessibility states.
2Ease of repair
If the housing is made removable for easy servicing, then the ease of repair is improved, but the stability and security of the locking system deteriorates
Solution Approach 1:
The housing is pre-configured with attachment features (protrusions) that engage with corresponding features on the baseplate before use. This preliminary preparation ensures that when the housing is attached, it forms a stable and secure connection without requiring complex assembly procedures during installation.
3Ease of operation
If the locking device is made accessible from outside the housing, then the ease of operation is improved, but the security and protection of internal components deteriorates
Solution Approach 1:
The locking device is nested within the housing structure, which itself is attached to the baseplate. The housing provides a protective enclosure that shields internal components while allowing the locking device to be operated through a keyhole or interface on the housing exterior. This nested arrangement maintains security while enabling operation.
Data Source
AI summary
An attachment system for a locking system mounted to a closure is provided. A baseplate is fastenable to a mounting surface of the closure, the baseplate including at least one circumferential cutout having an engagement feature, and a locking feature on a surface of the baseplate. A housing has at least one protrusion insertable into the at least one circumferential cutout and is rotatably engageable with the engagement feature to selectively prevent the housing from being withdrawn from the baseplate in a direction normal to the mounting surface. A locking device is disposed inside the housing and is accessible from outside the housing through a cutout defined in at least one of the housing and the baseplate, the locking device operable to rotatably lock and unlock the housing to the baseplate.