A lace closure system may include a low friction guide that defines the turning radius and direction of a lace which, though tension, pulls two or more panels toward each other. The lace closure system may include a fixator that defines a slot into which the lace is led, containing multiple engagement surfaces that, when the lace is wrapped into the slot, serve to engage the lace preventing unwanted loosening. The lace closure system may include a ring onto which the lace is attached, to assist in applying manual tension to the lace. The ring may be shaped and sized to removably attach to an outer perimeter of the fixator after excess lace has been wrapped into the slot.

An article of footwear includes a sole structure, a footwear upper, and a closure system. The sole structure may have a front sole portion and a rear sole portion pivotable relative to the front sole portion between a use position and an access position. The footwear upper may be fixed to the front sole portion and to the rear sole portion. The closure system may comprise an adjustment cord and a cord lock. The adjustment cord may be operatively secured to the footwear upper at an anchor location. The cord lock may be secured to the footwear upper and may be configured so that the adjustment cord slides through the cord lock when under tension to tighten the footwear upper in the use position, and the adjustment cord is repositionable relative to the cord lock to lock to the cord lock and retain tension in the adjustment cord.

An article of footwear includes a sole structure, a footwear upper, and a closure system. The sole structure may have a front sole portion and a rear sole portion pivotable relative to the front sole portion between a use position and an access position. The footwear upper may be fixed to the front sole portion and to the rear sole portion. The closure system may comprise an adjustment cord and a cord lock. The adjustment cord may be operatively secured to the footwear upper at an anchor location. The cord lock may be secured to the footwear upper and may be configured so that the adjustment cord slides through the cord lock when under tension to tighten the footwear upper in the use position, and the adjustment cord is repositionable relative to the cord lock to lock to the cord lock and retain tension in the adjustment cord.

A method of forming an article of footwear can include providing an upper in a substantially flat orientation, securing a gathering string along at least a portion of a perimeter of a first surface of the upper with a securing member that is attached to the upper, positioning the upper on a last, and applying tension to the gathering string to at least partially conform the upper to a shape of the last.

A tension-retaining system for retaining tension in a tensioning cord of a wearable article may include a retainer including an anchor and a wedge. The anchor may define a notch, and the wedge may have a tensioning cord coupling feature. The wedge may have an engagement portion that fits within the notch with the engagement portion disposed further in the notch than the tensioning cord coupling feature.

An article of footwear, method, and motorized lacing system includes a motor, including a motor shaft, a spool, coupled to the motor shaft, configured to spool and unspool the lace based on the turning of the motor shaft, a processor circuit, and a three-dimensional encoder. The three-dimensional encoder defines a major axis and has a surface having a tabs extending from a drum, an optical sensor, positioned within optical range of the cylindrical encoder, configured to output a signal to the processor circuit indicative of a detected one of the tabs, and a beam break, positioned between the three-dimensional encoder and the optical sensor, forming a pair of slits. The optical sensor is positioned to view the tabs through the pair of slits, wherein the processor circuit is configured to operate the motor based, at least in part, on the signal as received from the optical sensor.

An article of footwear, method, and motorized lacing system includes a motor, including a motor shaft, a spool, coupled to the motor shaft, configured to spool and unspool the lace based on the turning of the motor shaft, a processor circuit, and a three-dimensional encoder. The three-dimensional encoder defines a major axis and has a surface having a tabs extending from a drum, an optical sensor, positioned within optical range of the cylindrical encoder, configured to output a signal to the processor circuit indicative of a detected one of the tabs, and a beam break, positioned between the three-dimensional encoder and the optical sensor, forming a pair of slits. The optical sensor is positioned to view the tabs through the pair of slits, wherein the processor circuit is configured to operate the motor based, at least in part, on the signal as received from the optical sensor.

A fastening device includes a case, a spool and a knob. The case includes a housing and a base. The housing includes a receiving space and two side holes communicated with the receiving space. The base is detachably connected to the housing. The base includes a continuous wall, and the continuous wall surrounds a lower edge of the housing after the base is connected to the housing. The spool is received in the receiving space and configured for a lace passing through the side holes to be wound therearound. The knob is disposed on the case. Rotating the knob relative to the case in a fastening direction causes the spool to rotate in the fastening direction for fastening the lace.

A fastening device includes a case, a spool and a knob. The case includes a housing and a base. The housing includes a receiving space and two side holes communicated with the receiving space. The base is detachably connected to the housing. The base includes a continuous wall, and the continuous wall surrounds a lower edge of the housing after the base is connected to the housing. The spool is received in the receiving space and configured for a lace passing through the side holes to be wound therearound. The knob is disposed on the case. Rotating the knob relative to the case in a fastening direction causes the spool to rotate in the fastening direction for fastening the lace.

An article of footwear, method, and motorized lacing system includes a motor, including a motor shaft, a spool, coupled to the motor shaft, configured to spool and unspool the lace based on the turning of the motor shaft, a processor circuit, and a three-dimensional encoder. The three-dimensional encoder defines a major axis and has a surface having a tabs extending from a drum, an optical sensor, positioned within optical range of the cylindrical encoder, configured to output a signal to the processor circuit indicative of a detected one of the tabs, and a beam break, positioned between the three-dimensional encoder and the optical sensor, forming a pair of slits. The optical sensor is positioned to view the tabs through the pair of slits, wherein the processor circuit is configured to operate the motor based, at least in part, on the signal as received from the optical sensor.