Lower-back supporting structure for a bed or a chair

Abstract

A lower-back supporting structure for a bed or a chair includes a sliding base, two scissor lifts, a driver and a supporting member. The sliding base has a pair of slide slots and a pair of rotating pins, a securing portion between the two rotating pins, and a plurality of the locking apertures. Two scissor lifts both have an X-shaped frame having a pivot. A driver has a positioning end, an extendable rod, a through hole and a sliding rod placed through the slide slot, the through hole and the first front cotter holes. A supporting member has a pair of slide tracks and a pair of rotating holes. The driver drives the sliding rod along the slide slot of the sliding base to shorten the extendable rod, the scissor lifts rotate around the pivots to lift such that the supporting member is pushed away from the sliding base.

Description

BACKGROUND OF THE INVENTION1. Field of the InventionThe present invention relates to a lower-back supporting structure for a bed or a chair, and more particularly to a lower-back supporting assembly that provides lower-back support to improve the comfort afforded by a bed frame or chair, which employs scissor lifts that are capable of a scissoring movement to increase the lift height of the supporting member, thereby providing a lower-back supporting structure that can help users suffering from lower-back pain.2. Description of the Related ArtCurrently, most bed frames are designed for a user to lay flat while sleeping, and a typical bed frame includes four legs and supports. However, due to the stresses of modern life, many people suffer from insomnia and therefore suffer from a lack of sufficient rest. Consequently, many bed frames have included additional features, such as providing head or leg lifting capabilities, and the user can select and adjust a suitable position for him o...

AI Technical Summary

Benefits of technology

"The present invention provides a lower-back supporting structure for beds or chairs. The structure includes a sliding base, scissor lifts, a driver, and a supporting member. The sliding base has slide slots and rotating pins, and the scissor lifts have front and rear ends with cotter holes and rotating pins. A sliding pin and a sliding rod connect the driver and the sliding base, and the supporting member has slide tracks and rotating holes. The driver moves the sliding rod, which pushes the sliding rod towards the inner or outer arcuate regions of the slide slots, causing the scissor lifts to rotate around their pivots and move the supporting member horizontally. The lower-back supporting structure provides better comfort and helps alleviate lower-back pain."

Problems solved by technology

However, due to the stresses of modern life, many people suffer from insomnia and therefore suffer from a lack of sufficient rest.

However, these prior art bed frames all lack a lower-back support function.

If, when the user is laying flat, his or her lower-back is not supported by the bed surface, the user cannot experience the most comfortable posture or release the stresses around the lower-back.

However, the prior art lower-back support structure requires manual operation which is inconvenient, and the elastic sheet cannot provide sufficient support height.

Images