A device for neatly winding up cargo ties includes a moveable clamp arm a first end of which projects out of an opening of the housing such that the clamp arm and the housing together form a pair of jaws that can selectively be placed about a variety of surfaces and tightened. The jaws are loosened and tightened through the rotation of a threaded rod that engages with a second end of the clamp arm at the interior of the housing causing movement of the clamp arm along a clamping axis. In some embodiments, a nut which is prevented from rotating, is disposed at the second end of the clamp arm and comprises threading that engages with the threading on the threaded rod moving the clamp arm along the clamping axis.

An enclosing device to insert an enclosure into an envelope conveyed to an enclosing position includes an envelope conveyor and an enclosing unit. The envelope conveyor conveys the envelope to the enclosing position. The enclosing unit opens a frontage of the envelope such that the enclosure is inserted into the envelope that has reached the enclosing position and includes an opening amount adjuster to adjust an opening amount of the frontage when the enclosure is inserted into the envelope. The opening amount adjuster adjusts the opening amount, depending on a flap length and a body length. The flap length is a length of a flap of the envelope in a conveyance direction in which the envelope is conveyed to the enclosing position. The body length is a length of a body of the envelope in the conveyance direction.

A device for neatly winding up cargo ties includes a moveable clamp arm a first end of which projects out of an opening of the housing such that the clamp arm and the housing together form a pair of jaws that can selectively be placed about a variety of surfaces and tightened. The jaws are loosened and tightened through the rotation of a threaded rod that engages with a second end of the clamp arm at the interior of the housing causing movement of the clamp arm along a clamping axis. In some embodiments, a nut which is prevented from rotating, is disposed at the second end of the clamp arm and comprises threading that engages with the threading on the threaded rod moving the clamp arm along the clamping axis.

A strap roller contains: a frame, a fixing post, a central shaft, a worm gear, a rotation element, a support rack, a worm, a manual crank, a cap, and a resilient locking spring. The frame includes a first fence and a second fence. The fixing post is defined between the first fence and the second fence. The central shaft is rotatably connected between the first fence and the second fence. The worm gear is fitted on the central shaft. The rotation element is fixed on the central shaft. The support rack is mounted on the frame and is located outside the first fence. The worm includes a first extension portion, a second extension portion, and a tooth portion. The manual crank is connected on the first extension portion. The cap is disposed on the first fence of the frame. The resilient locking spring is mounted on the cap.

An enclosing device to insert an enclosure into an envelope conveyed to an enclosing position includes an envelope conveyor and an enclosing unit. The envelope conveyor conveys the envelope to the enclosing position. The enclosing unit opens a frontage of the envelope such that the enclosure is inserted into the envelope that has reached the enclosing position and includes an opening amount adjuster to adjust an opening amount of the frontage when the enclosure is inserted into the envelope. The opening amount adjuster adjusts the opening amount, depending on a flap length and a body length. The flap length is a length of a flap of the envelope in a conveyance direction in which the envelope is conveyed to the enclosing position. The body length is a length of a body of the envelope in the conveyance direction.

A strap roller contains: a frame, a fixing post, a central shaft, a worm gear, a rotation element, a support rack, a worm, a manual crank, a cap, and a resilient locking spring. The frame includes a first fence and a second fence. The fixing post is defined between the first fence and the second fence. The central shaft is rotatably connected between the first fence and the second fence. The worm gear is fitted on the central shaft. The rotation element is fixed on the central shaft. The support rack is mounted on the frame and is located outside the first fence. The worm includes a first extension portion, a second extension portion, and a tooth portion. The manual crank is connected on the first extension portion. The cap is disposed on the first fence of the frame. The resilient locking spring is mounted on the cap.