Rotating Hand Strap for Portable Data Collection Battery Access
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Solution Overview
Problem
Existing portable data collection apparatuses require users to detach a strap to replace batteries, which is time-consuming and inconvenient, especially when performing tasks that require both hands, and the devices are prone to damage when removed.
Innovation Solution
A portable data collection apparatus with a rotating retaining element that allows the device to be securely attached to the user's hand, enabling easy battery replacement without removing the strap, and can switch between operating and carrying configurations to accommodate tasks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the strap is fixed to cover the battery cavity, then the apparatus is securely retained on the hand, but battery replacement requires detaching the strap which is time-consuming and difficult
Solution Approach 1:
The strap is divided into a first portion and a second portion, with the battery cavity positioned between them. This segmentation allows the battery cavity to be accessible from the side opposite the user's hand, enabling battery replacement without detaching the entire strap from the hand.
Solution Approach 2:
The cavity door acts as an intermediary mechanism that provides access to the battery cavity through the strap structure. The door can be opened from the side opposite the hand to allow battery insertion and removal while the strap remains attached to the hand.
2Ease of operation
If the apparatus is removed from the hand for battery replacement, then battery access is simplified, but the apparatus may fall or be damaged and task continuity is interrupted
Solution Approach 1:
The strap structure is segmented with the battery cavity positioned between the first and second portions. This allows the cavity to be accessed independently from the side opposite the hand, enabling battery replacement while the apparatus remains securely attached to the hand.
Solution Approach 2:
The cavity door serves as an intermediary that enables battery access through the strap structure without requiring removal of the apparatus from the hand. The door provides a controlled access path that maintains apparatus security while enabling maintenance operations.
3Reliability
If the strap extends above the battery cavity, then the apparatus is securely held on the hand, but the user cannot perform tasks requiring both hands
Solution Approach 1:
The strap is segmented into first and second portions with the battery cavity between them. The first portion can be positioned to allow the user's fingers to pass through or alongside the apparatus, enabling the user to perform tasks with their hand while the apparatus remains attached.
4Device complexity
If the cavity is covered by the strap, then the apparatus structure is compact, but battery replacement requires strap detachment which increases operation time
Solution Approach 1:
The strap structure is segmented with the battery cavity positioned between the first and second portions. This segmentation creates a side access path through the cavity door that allows rapid battery replacement without requiring detachment of the entire strap, significantly reducing replacement time.
Solution Approach 2:
The cavity door acts as an intermediary access mechanism that provides a direct path to the battery cavity through the strap structure. This eliminates the need to detach the strap for battery replacement, reducing operation time while maintaining the compact integrated structure.
Data Source
AI summary
A portable data collection apparatus includes an apparatus body and a retaining element arranged for connecting said apparatus body to a hand of a user, the retaining element being so shaped as to enable said apparatus body to rotate between a position in which the apparatus body is in contact with the palm of the hand and a further position in which the palm is free of the apparatus body, in the further position the apparatus body being supported by the hand by means of the retaining element.