At what height should seat belts be used?
3 Answers
140cm. Car seat belts are suitable for individuals weighing 36KG and with a height of 140CM or more. More information about seat belts is as follows: 1. Introduction: Car seat belts are safety devices designed to restrain occupants during a collision and prevent secondary collisions between occupants and the steering wheel, dashboard, etc., or to prevent occupants from being ejected from the vehicle, which could lead to fatalities or injuries. 2. Working Principle: The retractor contains a ratchet mechanism. Under normal circumstances, occupants can pull the webbing freely and at a constant speed while seated. However, when the webbing is continuously pulled out from the retractor and suddenly stops, or when the vehicle encounters an emergency, the ratchet mechanism will engage and automatically lock the webbing, preventing it from being pulled out further.
I've noticed many people asking about the height requirement for using seat belts, which actually involves safety regulations. In most places, the requirements for children to use seat belts are based on height and age. Typically, children can use adult seat belts independently when they reach around 1.35 meters in height or are 12 years or older. If they're too short, the seat belt may press against their neck, which can be dangerous instead. It's recommended to use child safety seats until these conditions are met. When I drive, I always remind my friends to check their children's sitting posture: have the child sit with their back against the seat back, and the shoulder belt should pass over the center of the shoulder, not hang on the neck or arm. Regularly measuring the child's height is very helpful to ensure safety. During routine car maintenance, I also check if the seat belt buckles are aging to keep them responsive.
Since I have children at home, I pay special attention to the height requirements for seat belt usage. Based on experience, children cannot use adult seat belts if they are under 135 cm in height or younger than 7-8 years old, otherwise they may slip out and get injured. I have used child safety seats for my kids, and when transitioning to seat belts, I first test whether the shoulder strap fits snugly against their shoulders without choking their neck. Every time we go out, I make it a habit to teach my children to buckle their own seat belts, emphasizing that this is crucial for their protection. As a parent, I believe investing in child safety seats is worthwhile as it reduces the risk of accidents. If children grow quickly, regularly measuring their height to avoid exceeding the limit is important.
