A belt used to keep passengers or workers safe in vehicles or machinery; often used synonymously with 'seat belt'.
運転中は必ず安全ベルトを着用してください。
Please always wear your seat belt while driving.
安全ベルトを外すと車の警告音が鳴る車種もある。
Some cars have a warning sound that activates when the seat belt is unfastened.
子供用の安全ベルトやチャイルドシートを正しく取り付けることが重要だ。
It's important to correctly install child safety belts and car seats.