Seat and function frame thereof

Abstract

The present invention discloses a seat and a function frame thereof. The function frame comprises a fixation frame, leg supporting plate connection frames, connection members A, connection members B, connection members C, connection members D, connection members E, connection members F, connection members G, cushion connection frames, backrest connection frames, connection members H, connection members I and connection members J, wherein the leg supporting plate connection frames, the connection members A-J, the cushion connection frames and the backrest connection frames are arranged on the left side and the right side of the fixation frame in a pair manner, a connection rod A is fixed between the two connection membranes E oppositely arranged in a left-and-right manner, and a driving device drives the connection rod A to swing in a forward and backward movement manner so as to drive the whole function frame to move. According to the present invention, the mechanical connection rod structure is improved, such that the complexity of the system is reduced, the movement mechanism is optimized, the possibility of the forward flipping of the seat frame is reduced, the stroke distribution is reduced, the motor stroke is shortened, and the weight and the cost are reduced; and the closing, the opening and the lifting of the electromechanical stretching device are achieved by using the linear assistance, and the three-position limiting function is used during the lifting process, such that the product is stable and safe.

Description

technical field [0001] The invention belongs to the field of furniture, and relates to a seat such as a recliner, a sofa, etc., and in particular to a functional frame used therein. Background technique [0002] Traditionally, furniture such as lounge chairs, sofas, etc. will be installed with an actuating mechanism - a functional frame, on which a chair frame composed of a backrest, a seat cushion, and a leg rest is installed, and the functional frame is used to realize the movement of the chair frame and the motionless The interconnection between the base components. The functional frame is usually a combination of various mechanical linkages that are operable to provide various comfort features, such as independent reclining movement of the seat assembly, and actuation of the extendable leg rest assembly and associated tipping of the chair frame. While many conventional recliners operate satisfactorily, furniture manufacturers are continually pursuing improved chair fra...

AI Technical Summary

Problems solved by technology

[0003] Specifically, the structure of the functional frame of the seat currently on the market is complicated. When the user sits directly on the seat after the stretching mechanism is lifted, the possibil

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