著者

田中 恭子 佐藤 好美 塚本 真弓 垣本 由紀子

出版者

実践女子大学

雑誌

実践女子大学生活科学部紀要 (ISSN:13413244)

巻号頁・発行日

vol.44, pp.114-118, 2007-03-29

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This study investigated the problems concerning the usability of washbowls. The questionnaires distributed before the experiment revealed frequent complaints by users that washbowls were narrow and that there was excessive splashing. The experiment was conducted to confirm the usability and splashing as a function of bowl size using three females subjects (21 to 23 years of age). Four washbowl sizes were selected from the results of the questionnaires : 34cm wide and 24cm long, 39cm wide and 28cm long, 50cm wide and 33.5cm long, and 65cm wide and 37cm long. Using these sizes and two shapes (elliptical and square), the splashing area during face washing was measured as an index of usability. Four sizes and two shapes were made clipping the shape out of the filter papers. The area of splashing for each size and shape was calculated from the weight of the splashing area traced and cut from non-woven fabric. As a result, the 39cm wide and 28cm long washbowl was most popular and had the widest splashing area. Washbowls over 50cm wide exhibited less splashing area. The splashing area did not differ significantly between 50cm wide and 65cm wide washbowls, or between elliptical and square shapes. The experiment demonstrated that washbowls should be at least 50cm wide.