A lace-tightening device for a shoe lace in a shoe includes a rotating cam within a housing disposed within the shoe. The cam is connected to the opposite ends of the shoe lace and includes an outer surface for receiving the shoe lace as the cam rotates to pull the lace. A ratchet arm is slidably disposed within the housing and includes linear teeth arranged to engage the teeth of a driven gear as the ratchet arm translates in a linear direction, to rotate the gear in the one direction. The driven gear is part of a gear train connected to the cam to rotate the cam. The ratchet arm is pulled by at least one shape memory alloy (SMA) wire attached to a controller that is configured to execute a power cycle to energize and deenergize the SMA wire to thereby sequentially translate the ratchet arm in the linear direction, and ultimately to incrementally pull and tighten the shoe lace.

A footwear lacing apparatus can comprise a housing structure, a spool and a drive mechanism. The housing structure can comprise a first inlet, a second inlet, and a lacing channel extending between the first and second inlets. The lacing channel can comprise a spool receptacle located between the first and second inlets, a first relief area located between the spool receptacle and the first inlet, and a second relief area located between the spool receptacle and the second inlet. The first and second relief areas can be linearly tapered between the spool receptacle and the first and second inlets, respectively. The spool can be disposed in the spool receptacle of the lacing channel. The drive mechanism can be coupled with the spool and adapted to rotate the spool to wind or unwind a lace cable extending through the lacing channel and through the spool.

A footwear lacing apparatus can comprise a housing structure, a modular spool and a drive mechanism. The housing structure can comprising a first inlet, a second inlet, and a lacing channel extending between the first and second inlets. The modular spool can be disposed in the lacing channel and can comprise a lower plate including a shaft extending from the lower plate, and an upper plate including a drum portion. The upper plate can be releasabley connected to the lower plate at a connection interface. The drive mechanism can couple with the modular spool and can be adapted to rotate the modular spool to wind or unwind a lace cable extending through the lacing channel and between the upper and lower plates of the modular spool.

An article of footwear includes a fitting system with an upper member that is supported by the upper and a strand guide that is supported by the sole structure. The strand guide is flexible and flexes in concert with the sole structure. The strand guide has a guide surface. The fitting system further includes a tensioning system with a flexible strand that is configured to bias the upper member toward the strand guide. The flexible strand has a first section coupled to the upper member and a second section extending through the sole structure. The second section abuts the guide surface. The second section is configured to slide across the guide surface as a result of flexure of the strand guide. The first section and the upper member are configured to move relative to the sole structure as a result of sliding of the second section across the guide surface.

Presented are intelligent electronic footwear with controller automated features, methods for making/using such footwear, and control systems for executing automated features of intelligent electronic footwear. An intelligent electronic shoe (IES) includes an upper that attaches to a user's foot, and a sole structure that is attached to the upper and supports thereon the user's foot. An alert system, which is mounted to the sole structure and/or upper, generates predetermined outputs in response to electronic command signals. The IES system also includes a wireless communications device that wirelessly communicates with a remote computing node, and a footwear controller that communicates with the wireless communications device and alert system. The footwear controller receives location data indicative of the user's and remote computing node's locations, determines whether the user's location is within a predetermined location/proximity to the node's location and, if so, transmits command signals to the alert system to notify the user/vehicle.

Systems, devices and methods for providing active and/or passive compression therapy to a body part can include a compression device worn over a compression stocking. The compression device can have a pulley based drive train that is driven by a motor to tighten and loosen compression elements, such as compression straps, in a precise, rapid, and balanced manner. Sensors can be used in the compression device and/or compression stockings to provide feedback to modulate the compression treatment parameters.

An article of footwear can include provisions for improving the operation and use of various systems associated with the article. An automated tensioning system can be configured to provide and perform a variety of functions associated with the fastening of the article of footwear. The automated tensioning system may tighten and loosen the article of footwear through the operation of a motor. The automated tensioning system may also be able to store and recall a preset tension level.

A differentially tightenable ski boot includes a lower shell and an upper cuff that is pivotally coupled with the lower shell. The ski boot includes a first tightening system that is coupled with the lower shell and a second tightening system that is coupled with the upper cuff. Each tightening system includes a reel based closure device, a tension member that is operably coupled with the reel based closure device, and at least one guide member that routes or directs the tension member along a path about the lower shell or upper cuff. The first tightening system and the second tightening system are operable independently of each other to independently and differentially tightening the lower shell and the upper cuff.

An installing hole forming mechanism includes at least one guiding sleeve and an inserting set. The at least one guiding sleeve includes a bore. The inserting set is detachably coupled to the at least one guiding sleeve and includes at least one spike configured to couple to the bore of the at least one guiding sleeve. The at least one spike includes a tip. When the at least one spike passes through the bore of the at least one guiding sleeve, the tip exposes from the guiding sleeve, and the at least one spike and the at least one guiding sleeve are forced to puncture a shoe such that at least one installing hole is formed on the shoe.

A foot presence sensor system for an active article of footwear can include a sensor housing configured to be disposed at or in an insole of the article, and a controller circuit, disposed within the sensor housing, configured to trigger one or more automated functions of the footwear based on a foot presence indication. In an example, the sensor system includes a capacitive sensor configured to sense changes in a capacitance signal in response to proximity of a body. A dielectric member can be provided between the capacitive sensor and the body to enhance an output signal from the sensor.