Abstract: A buckle assembly includes a first buckle member having an insertion member, a second buckle member having a receiving slot, and a locking arrangement. The locking arrangement includes a locking slot indently formed on the insertion member, a locking member movably mounted in the second buckle member at a position corresponding to the locking slot, and a releasing key detachably attached on the second buckle member to drive the locking member to move between a locked position and a releasing position. In the locked position, the locking member is moved to engage with the locking slot to prevent the insertion member from detaching from the receiving slot. In the releasing position, the locking member is driven by the releasing key to retract from the locking slot so as to allow the insertion member to be pulled out of the receiving slot.

Abstract: A fall arrest lanyard includes a strap body having a fastening end, a securing end, and a relief portion, and restraint relief arrangement being actuated between a normal operated condition and a relief condition. The restraint relief arrangement includes first and second connectors spacedly affixed at the strap body to define the relief portion thereof between the first and second connectors. At the normal operated condition, the second connector is detachably connected to the first connector to shorten a length of the relief portion of the strap body. At the relief condition, the second connector is detached from the first connector, so that the relief portion is able to be fully extended to create a relief length for allowing the user to escape restraint when the user is restrained by the strap body.

Abstract: A fall arrest lanyard includes a strap body having a fastening end, a securing end, and a relief portion, and restraint relief arrangement being actuated between a normal operated condition and a relief condition. The restraint relief arrangement includes first and second connectors spacedly affixed at the strap body to define the relief portion thereof between the first and second connectors. At the normal operated condition, the second connector is detachably connected to the first connector to shorten a length of the relief portion of the strap body. At the relief condition, the second connector is detached from the first connector, so that the relief portion is able to be fully extended to create a relief length for allowing the user to escape restraint when the user is restrained by the strap body.