耳掛式耳機之人因分析研究

A Study on the Ergonomic analysis of Ear Clip Headphone

陳偉仁(Wei-Jen Chen)

指導教授 ： 吳志富

大同大學/設計學院/工業設計學系所/碩士(2006年)

摘要

以隨身聽收聽音樂已成為一種時尚風潮，然而最近的研究發現，長時間利用耳機聽隨身聽易導致聽力的退化。耳掛式耳機由於是開放式設計，因此對耳朵傷害較小，但是長時間配戴造型不合適的耳機，也將造成耳朵外觀的不舒適及疼痛，尤其以耳掛式耳機最為明顯。本研究目的是在探討市售耳掛式耳機對耳朵之舒適性評估，並針對耳型特徵及尺寸對於耳掛式耳機設計的影響進行探討。本研究於先期研究中，以主觀性評量問卷調查，對於不同耳型、耳長特徵的使用者進行實驗，結果顯示不同耳型對舒適度的影響並不顯著，其中耳長與耳機形式造成較顯著的影響。後續實驗則藉由3D 掃描耳朵外型並配合耳機3D 模型建立，進行耳朵與耳機之干涉分析，發現不同的耳機干涉部位差異極大，且受測者耳朵痛點與干涉位置相符。最後依據3D 掃瞄器所量測數據進行統計分析，將耳機設計變數定義為耳機長與寬，以改良耳機掛鉤設計，然後進行耳機使用者配戴舒適度評估。結果發現掛鉤小於耳型易造成壓迫疼痛，大於耳型尺寸之耳機寬度約4%、耳機長度約8%的掛鉤有較佳評價，本研究之結果期能提供耳掛式耳機的人因工程設計參考。

關鍵字

人因工程 ； 耳掛式耳機 ； 3D 掃描

並列摘要

Music appreciation through the walkmans has become a fashion. Recent studies,however, indicate that long-term use of headphones may result in hearing deterioration.Being an open system, ear clip headphones are less harmless to the ear. But prolonged wearing of headphones that do not fit will cause discomfort and aching of the outer ear.This is especially true with ear clip headphones. The purpose of this study is to evaluate the comfortableness of the ears wearing ear clip headphones sold in the market. It also explores the impact of the features and sizes of the ear on design of ear clip headphones.During its preliminary research, this study through subjective questionnaire surveys conducts experiment with users of different pinna configurations and lengths. The outcomes indicate different pinna configurations do not significantly affect the degree of comfortableness. Meanwhile, the impact of pinna length and headphone shape is more significant. The follow-up experiment includes ear-headphone interference analysis through 3D scanning of pinna configuration in conjunction with establishment of 3D headphone models. Findings indicate that different headphones affect significantly different areas and that the aching point of test subject’s ears is identical to the interference position. The final stage involves statistical analysis of the 3D scanning data.The headphone length and width are defined as headphone design variables for improvement of ear clip headphones. Evaluation of wearing comfortableness of headphone users follows. The outcomes indicate ear clips smaller than the ear are prone to cause pressuring pain. Ear clips larger than the ear with a headphone width of about 4% and length of about 8% receive better evaluations. Findings of this study may serve as ergonomic references for design of ear clip headphones.

並列關鍵字

ergonomic ； ear clip headphone ； 3D scanning

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