| Summary: | 碩士 === 國立清華大學 === 工業工程與工程管理學系 === 97 === This study proposes a glove design concept based on the natural posture of the hand. In the past, the glove design is basically based on silhouette of the hand, and is fabricated in flat fashion. However, when our hand is in natural posture, the palm and the digits will assume curve arch naturally. When the hand is put on a flat glove, the arch will force the glove to bend, on the contrary, the glove will resist this bending, that is anti-pliability. Anti-pliability is the cause of discomfort. Nature posture is that all the tissues in hand such as muscles, bone, ligament are all in a balance state of relaxation. It is the most frequently assuming posture in our volitional day. As a consequent, it is considered as a target posture for glove design. It is suggested that if the glove is designed based on natural posture, then anti-pliability will be reduced, and discomfort will be minimized.
The objective of this study is to measure the 3-D shape of the hand in natural posture using 3D scanner, as a reference for glove design. Based on an existing 3-D anthropometric database, we select a representative sample for each of S, M, and L sizes according toYang Yi-Hsueh’s sizing method. The hands of the representative samples were scanned by 3-D hand scanner and used for design reference.
This study measured three angles on each finger. They are included angle between lower arm and metacarpal、included angle between metacarpal and proximal phalanx、included angle between proximal phalanx and the connection between proximal interphalangeal joint and fingertip. Measurement results are as follows: the first finger are 51.05˚, 17.45˚, 13.20˚; the second finger are 36.86˚, 27.20˚, 33.54˚; the third finger are 29.83˚, 30.90˚, 36.00˚; the fourth finger are 18.82˚, 21.13˚, 40.09˚; the fifth finger are 9.47˚, 18.29˚, 40.90˚. However, these angles of a spreading hand are 0˚, which shows how many degree the glove have to be deformed as wearing flat gloves. The greater the level of gloves deform, the more discomfort they cause.
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