Folding sofa backrest

Abstract

1. The name of the product of this design: backrest of a folding sofa. 2. Purpose of the product of this design: The overall product is a folding sofa, which can be used as a sofa with a backrest or as a flat mattress; the partial design is used as a backrest when the whole product is used as a sofa, and is used as a part of the mattress when the whole product is used as a mattress. 3. The key points of the design of this product lie in the shapes of the parts enclosed by the solid lines and dotted lines in each view. 4. The picture or photo that best illustrates the design points: three-dimensional picture. 5. Other situations that need explanation Description of changing state: Referring to Figures 1 and 2, numbers 1 and 2 represent a backrest cover and a seat cushion, respectively. 6. Other situations that need explanation: The solid line in each view represents the part for which protection is requested, and the dotted line represents the boundary between the part for which protection is requested and the part for which protection is not requested; the changed state stereogram 1 is a stereogram of the state in the middle of the change, and the changed state stereogram 2 is a stereogram of the state after the change is completed, which is completed by exposing the cushion from the backrest cover and falling to the outside, and then turning it upside down together with the seat cushion equipped with the backrest cover, and when completed, the backrest cover is stored on the lower side of the seat cushion.

Images