The present application includes embodiments for a belt adjustment system. The belt adjustment system can be configured to engage a belt comprising a plurality of belt teeth. The belt engagement system can include a buckle portion that includes a belt clamp configured to couple the belt to the buckle, a lever pivotally movable between a first position and a second position, and a belt-engaging tab, the tooth-engaging tab positionable between a tooth-engaging position and a tooth-disengaging position responsive to the position of the lever on. The belt adjustment system can include a tool housing having a first wall and a second wall that form a slot. A tool comprising a distal end and a proximal end can be coupled to the tool housing, the tool positionable within the slot between a closed position and an open position.

A fastening system for an object (e.g., a wearable such as footwear) is disclosed that includes a buckle assembly and a strap for adjusting tension. The buckle assembly includes a base and a slider engaged with the base. The strap includes an array of teeth to engage with a pawl formed on the base. The fastening system is configurable between an engaged condition and a released condition based on the positioning of the slider relative to the base.

A skate-used skate-tightening apparatus includes a plate, a buckle, a belt and two pivots. The plate includes a lug and two forks. The buckle includes a middle section formed between front and rear sections. A first pivot pivotally connects the rear section of the buckle to the lug. The belt includes a front section. A second pivot pivotally connects the front section of the belt to the middle section of the buckle. The buckle is in a tightening position when the second pivot is engaged with the forks.

A skate-used skate-tightening apparatus includes a plate, a buckle, a belt and two pivots. The plate includes a lug and two forks. The buckle includes a middle section formed between front and rear sections. A first pivot pivotally connects the rear section of the buckle to the lug. The belt includes a front section. A second pivot pivotally connects the front section of the belt to the middle section of the buckle. The buckle is in a tightening position when the second pivot is engaged with the forks.

A strap may have a strip of material. Sliding clasps may be attached to ends of left and right segments of the strip. Each sliding clasp may have a slot through which one of the segments slides to adjust strap length. The strap may be coupled to an item such as a device with a battery. The sliding clasps are each in a first mode in which the sliding clasp is locked to the strip and does not allow the strip to slide and a second mode in which the sliding clasp is unlocked and allows the strip to slide. Rotational motion, squeezing motions, and/or other motions may be used to transition the sliding clasp between locked and unlocked states.

A lace tensioning device includes a housing component having an interior region, a first aperture, and a second aperture, and a spool component that is rotatably positionable within the interior region of the housing component. The spool component has a central cylindrical member and a lumen that extends through the central cylindrical portion. The spool component is rotatable within the interior region of the housing component to align one end of the lumen with the first aperture and to align an opposite end of the lumen with the second aperture to enable a lace to be inserted through the first aperture, the lumen, and the second aperture so that opposing ends of the lace are positioned exterior to the housing component. A knot may then be tied in the lace and the lace retracted to couple the lace with the housing component and spool component.

The fastening device for the air cylinder includes a belt having a first end portion and a second end portion, a coupling ring attached to the first end portion of the belt, and a buckle to which the second end portion of the belt is attached. The buckle includes locking grooves in which locking portions of the coupling ring are releasably locked. The locking grooves include openings that gradually widen toward a rear face side. The front face of the buckle includes bent portions that are brought into contact with an outer circumferential face of the air cylinder when coupling between the belt and the coupling ring is released.

The fastening device for the air cylinder includes a belt having a first end portion and a second end portion, a coupling ring attached to the first end portion of the belt, and a buckle to which the second end portion of the belt is attached. The buckle includes locking grooves in which locking portions of the coupling ring are releasably locked. The locking grooves include openings that gradually widen toward a rear face side. The front face of the buckle includes bent portions that are brought into contact with an outer circumferential face of the air cylinder when coupling between the belt and the coupling ring is released.

A fastening system for an object (e.g., a wearable such as footwear) is disclosed that includes a buckle assembly and a strap for adjusting tension. The buckle assembly includes a base and a slider engaged with the base. The strap includes an array of teeth to engage with a pawl formed on the base. The fastening system is configurable between an engaged condition and a released condition based on the positioning of the slider relative to the base.

A tensioner with retractable handle is provided, including a sheet metal base and a sheet metal handle. The sheet metal base is provided with a centre shaft in the middle thereon, the sheet metal handle includes a tightening part and a handle. A bottom of the tightening part is rotatably connected to the middle of the sheet metal base, an inner side of the tightening part is slidably connected with an upper baffle, and a bottom of the upper baffle is connected with two lower tongue parts. A rear end of the sheet metal base is provided with a lower baffle and a lower connecting plate, and the lower connecting plate is interlocked with the lower baffle. An inner side of a front of the sheet metal base is connected with a spring retaining plate, which is used to stop the gear from reversing and prevent the webbing from retracting.