Patent Number: 6,254,177

Title: Foldable chair frame

Abstract: A foldable chair frame includes a linking unit for connecting foldably a leg member to a seat member of the chair frame. The linking unit includes a first linking plate with an upper end pivoted to the seat member, a second linking plate with a lower end pivoted to the leg member, a resilient locking plate with an upper end pivoted to the seat member, and a locking pin extending through an elongated hole in the locking plate. The locking pin interconnects foldably adjacent ends of the first and second linking plates, and has a narrower pin section slidable along the elongated hole during pivoting movement of the first and second linking plates relative to each other. The locking pin further has a wider pin section which engages an enlarged hole end of the elongated hole when the first and second linking plates are unfolded from each other for locking the first and second linking plate at an unfolded state. The locking plate is depressible for disengaging the wider pin section from the enlarged hole end so as to permit folding of the first and second linking plates relative to each other.

Inventors: Tseng; Chuen-Jong (Chiayi Hsien, TW)

Assignee: Shin Yeh Enterprise Co., Ltd.

International Classification: A47C 4/00 (20060101); A47C 4/10 (20060101); A47C 004/44 ()

Expiration Date: 07/03/2018