Abstract: A strap tensioner includes a frame, a bridge bar, a stopper, a winding shaft, a gear assembly, a crank and an observation hole. The frame has two sidewalls. The bridge bar is fixed between the two sidewalls. The stopper is of an L-shape and extends from one of the sidewalls. The gear assembly is mounted on the other sidewall and has a worm and a worm gear. The worm gear is axially connected to the winding shaft. The worm is provided with a drive shaft. The crank includes a stem connected to the drive shaft, an arm pivotedly connected to the stem and being capable of being either expanded along the stem or folded over the stem, and a handle on the arm. The observation hole is formed in the sidewall. The handle is blocked by the stopper when the arm is folded over the stem.

Abstract: A strap tensioner includes a frame, a bridge bar, a stopper, a winding shaft, a gear assembly, a crank and an observation hole. The frame has two sidewalls. The bridge bar is fixed between the two sidewalls. The stopper is of an L-shape and extends from one of the sidewalls. The gear assembly is mounted on the other sidewall and has a worm and a worm gear. The worm gear is axially connected to the winding shaft. The worm is provided with a drive shaft. The crank includes a stem connected to the drive shaft, an arm pivotedly connected to the stem and being capable of being either expanded along the stem or folded over the stem, and a handle on the arm. The observation hole is formed in the sidewall. The handle is blocked by the stopper when the arm is folded over the stem.

Abstract: The system includes a body having a first side wall, a second side wall and a rod therebetween; a main shaft set, pivoted between the first and second side walls, including a main shaft, an end of the main shaft being disposed a ratchet and a first bevel gear; a transmission shaft, pivoted outside the second side wall of the body, a second bevel gear being axially connected around the transmission shaft, the second bevel gear engaging with the first bevel gear, and a gear ratio of the first and second bevel gears being 2:1; a handle set axially connected to the transmission shaft; and a pawl set pivoted on the second side wall of the body to fit into a notch of the ratchet to prevent the main shaft set from reversing.

Abstract: The chain binder includes a main tube and two links separately screwed to the main tube. A U-shaped seat has two parallel side plates and a hollow portion and is pivoted by the main tube. A gear is fastened to the main tube and received in the hollow portion. A claw with two pairs of claw teeth and handle teeth is rotatably disposed between the two side plates. The claw and the gear compose a ratchet mechanism. A claw positioner is disposed on seat and is selectably inserted into a positioning hole of the claw. A lever set is rotatably and elastically connected to a U-shaped frame attached on the seat. The lever set will be rotatable when it is pulled out.

Abstract: The chain binder includes a main tube and two links separately screwed to the main tube. A U-shaped seat has two parallel side plates and a hollow portion and is pivoted by the main tube. A gear is fastened to the main tube and received in the hollow portion. A claw with two pairs of claw teeth and handle teeth is rotatably disposed between the two side plates. The claw and the gear compose a ratchet mechanism. A claw positioner is disposed on seat and is selectably inserted into a positioning hole of the claw. A lever set is rotatably and elastically connected to a U-shaped frame attached on the seat. The lever set will be rotatable when it is pulled out.

Abstract: An adapter for coupling a lever to continuously unidirectionally drive a strap fastener is disclosed. The adapter includes a U-shaped frame with two free ends and a junction. The two free ends are separately provided with two shaft holes. Two sliding slots are separately formed near the shaft holes. A lever hole is formed at the junction. A ratchet shaft has an outer section with a radial hole and an inner section inserted in the shaft holes. A bolt is inserted into the radial hole. A ratchet is mounted around the ratchet shaft. A pawl is slidably disposed between the two sliding slots for engaging with the ratchet. A spring stopper is fixed between two sides of the frame. A spring is compressively arranged between the pawl and spring stopper. A holed plate is fixed between the spring stopper and the junction.

Abstract: An adapter for coupling a lever to continuously unidirectionally drive a strap fastener is disclosed. The adapter includes a U-shaped frame with two free ends and a junction. The two free ends are separately provided with two shaft holes. Two sliding slots are separately formed near the shaft holes. A lever hole is formed at the junction. A ratchet shaft has an outer section with a radial hole and an inner section inserted in the shaft holes. A bolt is inserted into the radial hole. A ratchet is mounted around the ratchet shaft. A pawl is slidably disposed between the two sliding slots for engaging with the ratchet. A spring stopper is fixed between two sides of the frame. A spring is compressively arranged between the pawl and spring stopper. A holed plate is fixed between the spring stopper and the junction.

Abstract: A cargo restraint apparatus for a cargo receptacle of truck is disclosed. The apparatus is composed of a track with engagement holes and a fastener. The fastener includes a seat with a sliding trough and a passage. Two guide plates are fixed on two sides of the seat. Each guide plate has an inclined guide tongue slidably received in the track. An insert is received in the sliding trough. A lever has a pivot hole at a center thereof for connecting to a pivot of the seat and a handle end and an action end are defined on two opposite sides of the lever. The action end is pivoted to the shaft. A torsion spring is disposed on the pivot and bears against the seat and the lever. The insert is normally engaged in one of the engagement holes.

Abstract: The cargo bar of the invention includes a telescoping rod composed of an outer tube and an inner tube. One end of a toothed rail is fastened on the inner tube and the other end thereof longitudinally extends along the outer tube so that the toothed rail can move with the inner tube. An iron assembly, which is composed of a housing and a U-shaped bracket, is fixed at one end of the outer tube. The U-shaped bracket accommodates the toothed rail and pivotally connects a handle. A plurality of cogs are formed on the pivotal end of the handle. When the handle is closed, the cogs engage with the toothed rail so as to jam the inner tube. That is, the total length formed by the two tubes stays fixed. When the handle is opened, the cogs disengage with the toothed rail so as to make the inner tube become adjustable.

Abstract: An auxiliary member for a ratchet buckle includes a U-shaped frame, a shank; two plastic bushes, a levering set, a holder, and a bolt set, wherein central sections of two sides of the frame connect with the shank axially, one end of the shank couples with the levering set, and open ends of the two sides of the frame connect with a body of the buckle by using the bolt set, such that the belt can be pulled while in use and rolled while in no use easily, and used to fix merchandises securely during transporting process.

Abstract: The cargo bar includes a toothed rod and a ratchet actuator. The ratchet actuator is composed of a carriage, a wrench bar with a handle, a main pawl, an auxiliary pawl and an elastic member. When the handle is reciprocated, the wrench bar drives the pawls to push teeth on the toothed rod, and then the toothed rod is elongated outwards. The carriage is disposed with a rotatable release key. When the release key is rotated in a specific direction, the auxiliary pawl and the main pawl will be pushed directly and indirectly by the release key, respectively, and then the two pawls withdraw from the toothed rod to make the toothed rod bidirectionally slidable.

Abstract: A binding device for a wheeled vehicle includes a drive mechanism including a shaft tube, a driven member secured to the shaft tube, at least one driving pawl mounted on the driven member, and a drive member rotatably mounted on the driven member and having an inner wall formed with a plurality of locking grooves engaged with the driving pawl. Thus, the drive member drives the shaft tube to rotate in one direction and performs an idle rotation in the opposite direction, so that the shaft tube is rotatable successively to wind the binding strap successively so as to tighten the cargo without having to remove the drive rod from the drive member, thereby facilitating a user winding the binding strap, and thereby saving the working time and energy.

Abstract: A binding device for a wheeled vehicle includes a drive mechanism including a shaft tube, a driven member secured to the shaft tube, at least one driving pawl mounted on the driven member, and a drive member rotatably mounted on the driven member and having an inner wall formed with a plurality of locking grooves engaged with the driving pawl. Thus, the drive member drives the shaft tube to rotate in one direction and performs an idle rotation in the opposite direction, so that the shaft tube is rotatable successively to wind the binding strap successively so as to tighten the cargo without having to remove the drive rod from the drive member, thereby facilitating a user winding the binding strap, and thereby saving the working time and energy.