Foldable back cushion for sofa

Abstract

A foldable back cushion for a sofa comprises a preposed back cushion, a front framework, a strut, a rear framework, a handle, long sliders, short sliders, pawls and ratchet bars, wherein the strut consists of two identical diamond frames; the front framework and front box bars are mounted in front of the diamond frames; rear box bars are mounted on the rear framework; the long sliders are mountedat the upper parts of the box bars on one side; the short sliders are mounted in the box bars on the other side; the lower ends of front square bar blocks and lower square bar blocks of the diamond frames are hinged to the lower ends of the front box bars and the rear box bars; the upper ends of the front square bar blocks and the lower square bar blocks are hinged to the long sliders and the short sliders; the ratchet bars are arranged on the long sliders; the pawls are mounted beside the ratchet bars; the preposed back cushion is mounted on the front framework; the strut is mounted in an organ hood; and the rear framework is mounted in the front of a supported sofa back frame. The back cushion can be pulled out for use when the handle is pulled. The handle is reversely pulled for folding, so that the strut and the organ hood are pushed to approach the front of the sofa back frame. The back cushion cannot be thrown about on the sofa, so that a sofa cushion can be kept tidy.

Description

technical field [0001] The invention belongs to the sofa field, in particular to a foldable cushion for a sofa. Background technique [0002] Existing sofa cushions are mainly used to cushion the waist and back of people sitting on the sofa, so as to reduce the fatigue of people's waist and back in sitting posture, so that the body is relaxed and comfortable. Especially for home sofas, the seat cushions are often relatively wide, and the cushions can be removed for people to lie on the sofa cushions to sleep. The sofa cushions are relatively large and thick, and occupy a large space. Every time you want to lie down and rest, the cushions you take away often have to be piled up in several places, and there is no place to pile up. Especially when the children at home are jumping and playing on the sofa, the cushions are often thrown here and there, and the parents often have to arrange them many times a day, which is very time-consuming and energy-consuming, which is very tr...

AI Technical Summary

Problems solved by technology

Especially when the children at home are jumping and playing on the sofa, the cushions are often thrown here and there, and the parents often have to arrange them many times a day, which is very time-consuming and energy-consuming, which is very troublesome

People who go to work go out early in the morning, and the time is very tight, and the sofa cushions are often piled up in disorder, which is very untidy

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