S-shaped sofa with dual purposes of sitting and lying down

Abstract

The invention discloses an S-shaped sofa with the dual purposes of sitting and lying down, which comprises a front foot tube system, a rear foot tube system, a leg supporter system, a seat, a back, a foot rest, a hinge, a fixed pin, an articulated pipe and a trundle, wherein a rack at the lower part of a sliding tube of the rear foot tube system is connected with a gear at the rear part of a connection plate of the front foot tube system in a rolling mode; the upper part of the sliding tube is connected with a spacing wheel at the rear part of the connection plate in the rolling mode; the rack at the upper part of the sliding tube of the leg supporter system is connected with the gear at the front part of the connection plate of the front foot tube system in the rolling mode; the lower part of the sliding tube is connected with the spacing wheel at the front part of the connection plate in the rolling mode; the seat is connected with the connection plate of the front foot tube system and is connected with the foot rest through the hinge; the other end of the foot rest is connected with a roller wheel horizontal pipe of the leg supporter system in a sliding mode; the back is respectively connected with a back hinge of the rear foot tube system and a casting pipe of the articulated pipe through a bolt; and a hole of the other end of the articulated pipe on a hinge seat is connected with the spacing wheel at the rear part of the connection plate of the front foot tube system through the bolt. The invention has the beneficial effects of simple mechanism, dual purposes of sitting and lying down, automatic adjustment of center of gravity and occupying little space when not being used.

Description

technical field [0001] The invention belongs to the technical field of seat products, in particular to a structure of an S-shaped sofa chair. Background technique [0002] Most of the existing S-shaped sofa chairs for sitting and lying can only be reclined but not seated, and some S-shaped sofa chairs that can be seated, such as functional sofa products such as massage chairs. The function is actually very good. But its disadvantages are: 1. The length of the S-shaped sofa chair is nearly two meters, which takes up a lot of space when not in use. 2. Functional sofa products use the adjustable backrest to realize the function of "lying". The center of gravity of the seat system is fixed and cannot be adjusted, so the backrest angle is limited. 3. The hardware mechanism for functional sofa products to achieve the functions of "lying" and extending the footrest is more complicated. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a struc...

AI Technical Summary

Problems solved by technology

But its disadvantages are: 1. The length of the S-shaped sofa chair is close to two meters, and it takes up a lot of space when not in use.

3. The hardware mechanism for functional sofa products to realize the functions of "lying down" and extending the feet forward is relatively complicated

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