以手的自然姿勢概念做為手套設計的參考

A Reference for Glove Design Based on the Concept of Natural Hand Posture

柯俊年

指導教授 ： 游志雲

國立清華大學/工學院/工業工程與工程管理學系/碩士(2009年)

摘要

本研究是以手部自然姿勢的概念做為設計手套的參考。過去，手套設計通常只是參考手的平面形狀，做平面式裁縫。然而，在手呈現自然姿勢時，手掌與手指會呈現彎曲的弧度，當這個彎曲弧度的手穿上平面式的手套中，彎曲弧度會迫使手套彎曲變形，相對的，平面的手套會抵抗變形，也就是抗繞柔性(anti-pliability)。抗繞柔性是不舒適的根源。自然姿勢是手部肌肉、骨骼、韌帶等相關組織處於放鬆平衡的姿勢，是我們日常生活作息最經常維持的姿勢，因此將之作為手套設計的目標姿勢。如果我們以自然姿勢的手來設計手套，應該可以降低平面型手套的抗繞柔性，減低穿戴手套的不舒適性。
本研究的目的是以3D手部掃描儀(3D scanner)來量測手部的自然姿勢，做為設計手套的參考。本研究是就現有的3D手部資料庫，依楊宜學的尺碼分群方法，在大、中、小三個尺碼分群中各找出一個代表人。再將代表人的手以自然姿勢進行3D掃描。掃描的結果用以當作設計手套的參考型態。
本研究量測自然姿勢下五根手指的三個角度，分別是下臂與掌骨、掌骨與近端指骨、近端指骨與近端指間關節-與-指尖連線的夾角。量測結果如下：第一指51.05度、17.45度、13.20度；第二指36.86度、27.20度、33.54度；第三指29.83度、30.90度、36.00度；第四指18.82度、21.13度、40.09度；第五指9.47度、18.29度、40.90度。角度越大表示如果配戴傳統平面手套時，所造成的抗橈柔性越大，不舒適感越高。

關鍵字

預彎手套 ； 手部型態 ； 手套設計

並列摘要

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.

並列關鍵字

pre-curved glove ； hand morphology ； glove design

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