Nghiên cứu ứng dụng công thái học trong thiết kế bàn ghế học sinh cấp tiểu học tại Thành phố Hồ Chí Minh

Abstract

The application of ergonomics in the product design is currently of great interest, especially for products used in schools, to reduce school-related health issues. This article presented statistical data on the body size of male and female primary school students, aged 7 - 8 years old in Ho Chi Minh City including average body size, size in standing and sitting position. Additionally, the article also gave the specifications of sawn acacia wood, acacia finger joint wood used for the production of student desks and chairs. By integrating the students'body dimensions, ergonomic parameters, Ministry of Health guidelines, and the selection of acacia wood materials, the author devised a set of desks and chairs suitable for elementary school students up to grade 3. The desk dimensions were as follows: height 570 mm, desk width 450 mm, desk length 600 mm; for the chair: height 650 mm, seat height 340 mm, seat width 310 mm, seat depth 264 mm. The angle between the backrest and the chair surface was 95^o. As a result, a desk and chair set was designed, followed by trial production, and a proposed manufacturing process for student desks and chairs.