FURNITURE FOR SEATING AND LYING Russian patent published in 2004 - IPC

FIELD: light industry, in particular, manufacture of upholstered furniture. SUBSTANCE: furniture has base with seat and back attached to base sides, guides for moving of seat relative to base, and four-link transformation mechanism. Upper link of transformation mechanism is fixed on seat rigid base and front and rear rotating links are pivotally connected with upper and lower links. Supporting and sliding member is attached to rear rotating link. Furniture is further provided with relief spring for connecting of rotating links of transformation mechanism. Lower link of transformation mechanism is rigidly connected to base sides. Rotary links are of equal size. Back is pivotally connected to base. Guide for supporting and sliding member is made arced. Supporting and sliding member is fixed on rear rotating member between relief spring attachment site and lower and upper link junction site. Relief spring is in compressed state, when supporting and sliding member is in extreme upper position in guide. EFFECT: convenient usage, improved comfort and enhanced reliability in operation. 5 cl, 5 dwg