Wearable Belt Locking Member for Stable Tensile Force
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Solution Overview
Problem
Conventional wristbands with adjustable belts face issues in maintaining consistent tensile force during mounting, leading to potential inaccuracies in activity level measurements due to varying tension applied.
Innovation Solution
A belt design featuring a flexible, long, narrow band with a frame-shaped body and a locking member that includes a base, neck, and head portion, where the locking member is attached to the belt before mounting, ensuring stable tension by locking into a frame-shaped body, preventing accidental removal and allowing for precise tensile force adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple through-holes are provided for adjustable mounting, then the adaptability of the belt is improved, but the tensile force consistency deteriorates due to varying tension applied when selecting different through-holes
Solution Approach 1:
The locking member is attached in advance to a specific through-hole before the belt is mounted on the target object. This preliminary attachment ensures that the belt length and tensile force are predetermined and fixed, eliminating variations that would occur with adjustable mounting. The locking member protrudes from the front surface in advance, so when the belt is wrapped around the target object and the second belt portion is passed through the frame-shaped body, the tensile force is already set to a consistent value.
2Ease of operation
If a protrusion is fitted into through-holes for mounting, then the ease of operation is improved, but the reliability of preventing accidental removal deteriorates
Solution Approach 1:
The locking member is divided into three distinct portions: a base portion that contacts the rear surface of the second belt, a neck portion that extends through the through-hole, and a head portion that protrudes from the front surface. This segmentation allows the head portion to be easily inserted through the through-hole for simple mounting, while the base portion provides stable anchoring to prevent accidental removal. The frame-shaped body further locks the head portion to secure the belt in place.
Data Source
AI summary
A belt includes a belt main body extending in a long, narrow band. A frame-shaped body is attached to a first belt portion corresponding to a side on an end in a lengthwise direction of the belt main body. Multiple through-holes are formed in alignment in the lengthwise direction in a second belt portion corresponding to a side opposite to the first belt portion in the lengthwise direction of the belt main body. A locking member is included for attachment to a through-hole of the second belt portion so as to protrude from a front surface of the second belt portion. When the belt main body is mounted on the target object, the second belt portion is passed through the frame-shaped body, and the side of the frame-shaped body locks the locking member so as to prevent the second belt portion from coming out of the frame-shaped body.