Single hand operation mechanism for baby cart back rest

Abstract

The single hand operated back rest mechanism for baby cart includes one foldable four link rod back rest comprising right and left back rest pipes, right and left flat bars and right and left crossed flat bars; one foldable four link rod sectioning device comprising right and left sectioning units with regulating torsion spring, right and left sectioning pins, right and left back rest pipes, right and left foot pipes, right and left seat pipes and right and left support pieces; one single hand operated back rest angle regulating mechanism comprising right and left crossed flat bars, fixing seat, reset spring, button, drive rod, rotating piece, etc. The single hand operated back rest mechanism is simple in structure and easy to operate, and has no increase in cost.

Description

technical field [0001] The invention relates to a one-handed operation mechanism for adjusting the angle of the backrest of a stroller. Background technique [0002] The stroller is a special equipment for baby to sit and lie down. In order to create a more comfortable growth environment for the baby, the backrest adjustment is designed to meet the needs of the baby to adjust the angle from the sitting position to the lying position from 110° to 170°. At present, on the basis of considering the cost, most of the middle and low-end strollers adopt the backrest adjustment mechanism operated by both hands. Adjustable sectionalizers and sectional pins etc. form a foldable four-link backrest and a four-link sectional device. The adjustment method is to rely on both hands to press and act on the sectionalizers on the left and right sides at the same time, so that the sectional teeth on the left and right sectionalizers are separated from the sectional pins to achieve the purpose ...

AI Technical Summary

Problems solved by technology

The adjustment method is to rely on both hands to press and act on the sectionalizers on the left and right sides at the same time, so that the sectional teeth on the left and right sectionalizers are separated from the sectional pins to achieve the purpose of sectional adjustment, but there are disadvantages in adjusting with both hands. Less defects, firstly, it is inconvenient to operate with both hands, and the position of the operating part is low, adults often have to bend over to operate; secondly, the two-hand operation must be synchronized to achieve the desired effect. When the swing is not smooth due to the influence of resistance, the hand can no longer be used to help; third, the fingers are easily caught between the sectionalizer and the rear leg tube during the operation, and the components are easy to catch clothes; fourth, the aesthetics are poor

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