VARIABLE SHOULDER STRAP BAG, SHOULDER STRAP ASSEMBLY USED FOR THE BAG, AND PIVOTABLE DEVICE

摘要

The present invention provides a bag with adjustable shoulder straps includes: an accommodating unit having an internal space capable of keeping an object; a first upper strap and a second upper strap each being connected to both sides of an upper portion of the accommodating unit, respectively; a first lower strap and a second lower strap each being connected to both sides of a lower portion of the accommodating unit; a first coupling module coupling the first upper strap to the first lower strap to be rotatable and having a first locking portion; and a second coupling module coupling the second upper strap to the second lower strap to be rotatable and having a second locking portion detachably locked to the first locking portion, and a shoulder strap assembly and a rotary type coupler for the bag.