[ Papers ]

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28, No. 5, pp.280-285

ISSN: 2508-5107 (Online)

Print publication date 15 Oct 2019

Received 11 Aug 2019 Revised 01 Oct 2019 Accepted 01 Oct 2019

DOI: https://doi.org/10.7735/ksmte.2019.28.5.280

도어용 한 방향 회전 댐퍼 개발 및 성능실험

김기환^a ; 박창순^a^{, *} ; 이응석^a

Development and Performance Test of Single Way Rotary Damper for Door Hinge

Gi-hwan Kim^a ; Chang-soon Park^a^{, *} ; Eung-suk Lee^a

aDepartment of Mechanical engineering, Chungbuk National University, 1, Chungdae-ro, Seowon-gu, Cheongju, Chungbuk-do, 28644, Korea

Correspondence to: ^*Tel.: +82-43-261-2442 Fax: +82-43-273-8789 E-mail address: eungsuk@cbnu.ac.kr (Eung Suk Lee).

Abstract

The quality door hinge has various functions for smooth opening and slow closing . Some commercial and expensive hinges have adjusting methods of the time to close and the power to open . To achieve this purpose, damper and spring units are combined dynamically and structural design is required. We designed a single-way rotary damper and spring door hinge system. A testing device for acquiring performance data, such as closing time and damping/spring force during door opening and closing, is required for the standardization of commercial door hinges. Single-way rotary dampers include a check valve with a hole in the vane assembled on the rotating shaft. The experimental result showed that the damping forces in the opening and closing directions are low and high, respectively. The damping coefficient was obtained for performance verification purposes.

Keywords:

Hinge of door, Single way rotary damper, Check valve, Damping coefficient, MR fluid

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