The sinking seat is the mounted seat in rear columns of recreational vehicle. The convenience of sinking seat is lower than folding seat because the paths of the containment and withdrawal are different each other. In this paper, the cam shape design model which is related recliner apparatus was introduced of the folding path of the existing manual system sinking seat. And the validity of the design variable was verified through the dynamic mechanics simulation using RecurDyn. but, the transformation-time graph of cam link joint position in RecurDyn is unstable because it is not consideration of friction.

This paper is concerned with the quality assurance of recliner chair frame. It is necessary for recliner chair frame that is endurable for the repeated load and sudden impact of human sitting and general use. And this paper studies the quality assurance of recliner chair frame that is newly designed and made in the regional company. The procedures of quality assurance are composed of the stress analysis using computer simulation and results by test equipments. Theoretical survey is composed with the stress analysis results from ANSYS program and quality assurance procedures are composed of static load test, reciprocal load test of spring and impact test of locking frame. The results from the mechanical tests satisfy the safety criteria of the Korean national standard. This research assures the quality of new designed recliner chair frame and can be used as quality assurance procedures of concerned structures

This paper is concerned with the optimal design of recliner chair frame. It is necessary for recliner chair frame that is endurable for the repeated load of human sitting. And this paper studies the selected recliner chair frame that is produced in the regional company. The company has not designed and made this chair by the mechanical engineering review. So the current frame structure and parts in this chair frame are studied and researched to develop the new frame structure with mechanical engineering design concepts. This research reported the investigation of new design of recliner chair frame by stress analysis and the verification of mechanical safety. This result will be adopted to design specification of new recliner chair frame

차량용 시트는 쿠션부와 철제 구조물로 되어 있는데 철제 구조물은 프레임, 레일, 리클라이너로 구성된다. 특히 시트의 안정성과 직결된 리클라이너(Seat recliner)부품의 복합 성형제품은 파인블랭킹 제조기술을 활용하여 제작하는 연구가 진행되고 있다. 본 연구에서는 열처리 된 구조용강이 적용된 리클라이너를 CATIA 프로그램을 사용하여 3D 모델링하였으며, 이를 유한요소 해석 프로그램을 사용하여 라운드 리클라이너와 기준의 리클라이너의 강도 해석의 하중전달 경로, 응력 및 변형률을 연구하였다. 따라서 본 연구에서는 라운드 리클라이너와 기준의 리클라이너의 강도 해석의 응력 및 변형률을 비교/분석하였으며 기계적 특성을 파악했다.