Removable Locking Pins for Wearable Device Housing
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Solution Overview
Problem
Wearable devices face a challenge in reconciling a sleek design with the need to accommodate increasing features, as thicker devices are required to support additional functionality, compromising their aesthetic appeal.
Innovation Solution
The use of removable locking pins that fit into receiving channels to secure the front and rear housings of wearable devices, allowing for a slim profile without occupying internal space, and are hidden from view to maintain appearance, while also being cost-effective and simplifying assembly by being outside the water seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional fasteners (screws, snaps) are used to secure housings, then the device can be assembled, but internal space is occupied and appearance is compromised
Solution Approach 1:
The locking pin system extracts the fastening function from the internal volume of the device. By positioning locking pins in receiving channels on the external surface of the housing, the connection mechanism is removed from the internal space, allowing maximum volume for battery and components while maintaining secure housing attachment
Solution Approach 2:
The locking pins act as intermediary elements that mediate between the front and rear housings. These pins extend into receiving channels and provide the connecting function without requiring internal fasteners, thus preserving internal volume while ensuring reliable housing connection
2Shape
If visible fasteners are used, then assembly is simplified, but the sleek appearance is compromised
Solution Approach 1:
The locking pins are strategically positioned in receiving channels that are located in non-visible areas of the housing. This local placement allows the fastening function to be performed in areas where visibility is minimal, maintaining the sleek appearance while enabling straightforward assembly and manufacturing
3Reliability
If locking pins are positioned inside the water seal, then housing connection is secured, but assembly complexity and cost increase
Solution Approach 1:
The locking pin system is extracted from the water seal assembly, positioning it externally where it can perform the housing connection function without interfering with water sealing components. This separation simplifies both the water seal design and the overall assembly process while maintaining secure housing attachment
Data Source
AI summary
Disclosed are removable “locking pins” that hold the front and rear housings of a wearable device together. These pins fit into receiving channels in the walls of the housings. Unlike screws or other fasteners, these pins do not take up space needed for internal components of the device. Unlike snaps, the pins are usable with housings that are very rigid (e.g., metal or ceramic). In some embodiments, the pins are entirely hidden from view, and thus they do not detract from the appearance of the device. Also in some embodiments, the pins fit entirely outside of a water seal for the device, thus reducing cost and assembly complexity.