Abstract: A sports shoe with replaceable and retractable spikes. The shoe has a sole, comprising a plurality of spikes releasably and retractably mounted in the sole, a rack and pinion member mounted in the sole and in engagement with the spikes for extending and retracting the spikes from the sole and a release member for removing the spikes from the sole. The rack and pinion member includes a rack member with a rack gear which engages a pinion member at one end of each spike. The rack gear moves linearly and imparts rotational movement to the pinion members to extend and retract each spike from the sole. The rack member further includes an actuation tab extending exterior of the sole for easy movement of the rack. The release member includes a plurality of threaded members extending into the sole and a disengaging member at the rack member, which prevents extension and retraction of the spikes so that they are removable through the threaded members.

Abstract: An athletic shoe including a shoe upper and an outsole connected to the shoe upper is provided. The outsole defines a plurality of spike receiving openings therein. A plate is located between the shoe upper and the outsole, and includes a plurality of spikes attached thereto. The plate is movable within the upper between a spike-exposing position whereby the plurality of spikes extend outwardly through respective openings formed in the outsole, and a spike-retracting position. An inflatable bladder is located between the plate and the outsole. When inflated with a fluid, the bladder lifts the plate upwardly into the spike-retracting position, and holds the plate in the spike-retracting position during shoe wear. An exhaust communicates with the bladder for exhausting the fluid contained in the bladder. When the fluid is exhausted, the plate is movable into the spike-exposing position by the weight of the wearer during shoe wear.

Abstract: A retractable stud for a footgear sole carried by a movable backing plate having a underlying air inflatable and air deflatable bladder with means for air inflation and air deflation which in turn has an underlying footgear outer sole having a bottom outer surface defining an opening for passage of the retractable stud, the bladder in an air inflated configuration moving the backing plate inboard thus holding the stud against the weight of the wearer of the sole in a retracted position entirely within the bottom outer surface of the outer sole, the bladder in an air exhausted deflated configuration allowing the weight of the wearer of the sole to move the backing plate outboard thus holding the stud in a protruding position beyond the bottom outer surface of the outer sole.

Abstract: A spiked athletic shoe includes a shoe upper, and an outsole housing connected to the shoe upper. The outsole housing includes a bottom wall with a plurality of spike-receiving openings. Spaced-apart rear and front spike plates are located within the outsole housing, and reside respectively in a rear heel portion of the shoe and a front portion of the shoe generally in an area of the ball and toes of the foot. The rear and front spike plates include a plurality of spikes attached thereto for movement between a spike-extended position whereby the plurality of spikes extend outwardly from the bottom wall of the outsole housing, and a spike-retracted position whereby the plurality of spikes are retracted within the outsole housing. A slide plate located within the outsole housing operatively engages the rear and front spike plates, and is actuated by a manually actuated lever to move the rear and front spike plates and attached spikes between the spike-retracted position and the spike-extended position.

Abstract: A shoe is provided having one or more selectively extendable spikes mounted to the sole. The sole contains one or more spike housings, each retaining a spring-biased spike selectively movable between a retracted or extended position with respect to the housing as desired. A slide member disposed in the sole of the shoe is manually operated to extend or retract the spikes.

Abstract: A turntable is provided for an article of footwear having a sole with a recess therein. The recess of the sole has a central hub, an arcuate lug and two locating lugs. A spring module is located in the recess and has a large aperture through which passes the hub. The turntable is located in the recess and has an arcuate recess in which the arcuate lug locates, a central opening in which the central hub locates, and an enlarged recess in which the spring module locates.

Abstract: A resilient, all-surface sole for footwear in which metal studs are mounted in the sole and extend beyond the bottom surface of the sole to such an extent that when footwear embodying the sole is worn, the metal stud is depressed within the sole until the tips of the studs are substantially at the plane of the bottom surface of the sole.

Abstract: The undersole of a shoe is provided with openings, above which are mounted housings for respective spike members. Each spike member includes at least one spike mounted on an edge of a carrier, a slide, and a hinge between the carrier and the slide. The slides are slidably mounted in the housings. The carriers and housings have slidingly engaged curved surfaces which turn the spikes on the spike carriers from being generally horizontal when the spikes are withdrawn into the undersole, to being generally vertical when the spikes are extended. An operating mechanism, preferably a battery-operated electric motor-powered mechanical drive moves the slides to extend and retract the spikes.

Abstract: An athletic shoe including a shoe upper and an outsole connected to the shoe upper is provided. The outsole defines a plurality of spike receiving openings therein. A plate is located between the shoe upper and the outsole, and includes a plurality of spikes attached thereto. The plate is movable within the upper between a spike-exposing position whereby the plurality of spikes extend outwardly through respective openings formed in the outsole, and a spike-retracting position. An inflatable bladder is located between the plate and the outsole. When inflated with a fluid, the bladder lifts the plate upwardly into the spike-retracting position, and holds the plate in the spike-retracting position during shoe wear. An exhaust communicates with the bladder for exhausting the fluid contained in the bladder. When the fluid is exhausted, the plate is movable into the spike-exposing position by the weight of the wearer during shoe wear.

Abstract: A projectable-retractable spike assembly for use in combination with footwear. The heel and sole of a piece of footwear encase a rotatable shaft and lock subassembly, with a motion translation (conversion) device which is used to drive a network of shafts, levers and rotatable roller bars. Several spikes depend from the roller bars and thus, are motivated to alternately roll out and downward from or upward and into the heel and sole of the footwear. The assembly may be either fabricated for strap-on wear or encased within heel-sole portions of a shoe or boot.

Abstract: A convertible shoe for multipurposes includes an upper and a sole attached to the upper. A flap is attached to the shoe and the flap has a ground engaging element disposed thereon. The flap has a first position wherein the flap is positioned in an overlying relationship to the upper and a second position wherein it is positioned in an overlying relationship to the sole such that the ground engaging element can contact the surface upon which the sole is being used.

Abstract: An article of footwear (10) has a sole (12) with a lower surface (14) and a recess (16) in the lower surface (14). A turntable (20) is mounted in the recess (16) for rotational movement relative to the sole (12) but joined thereto by projections (40) located in recesses (30) in the sole (12).

Abstract: A cleated shoe which includes a mechanism which allows for the cleats to be retracted when not on an activity surface and then to be lowered or extended simultaneously for better traction at the wearer's command. The mechanism consists of a control lever located at the back of the shoe and two sliding flexible plastic members disposed on top of one another longitudinally within the sole of the shoe, with the heads of a plurality of cleats trapped between these two sliding members. The head of the cleats remain within the sole of the shoe whereas the body of the cleat can be extended out of the bottom of the shoe sole or totally retracted into the sole. The top sliding member is grooved to drive and lock the cleat into retraction or extension while the lower sliding member uncovers or covers the cleat opening, respectively.

Abstract: A sport shoe having a plurality of pneumatically actuated, rotatable spikes that are mounted in open ended chambers formed in the shoe sole, each spike having a narrow tip. Each spike is constrained for movement between extended and retracted position. A stop is provided in each chamber for holding the spikes in their extended positions, the spike tips project outwardly from the chambers when in their extended positions. A pneumatically actuated bladder in each chamber when inflated, drives the spikes to their extended positions against the stops. Each spike is rotated beyond a vertical axis or centerline that is perpendicular to the axis of rotation of that spike. A spring operatively connected to each spike rotates the spikes to their retracted positions within the chambers when the bladders are deflated.

Abstract: A golf shoe has a sole and a heel attached to an upper. A spike is housed within a housing inserted into the sole or the heel. The housing includes a hollow cylinder threaded into the sole or heel. The cylinder houses a helical spring that biases a spike to the extended position. When the shoe is used on a hard surface, the surface forces the spike upward against the spring to a retracted position.

Abstract: An athletic shoe has a sole that is slightly, if at all, thicker than soles that are common to athletic shoes. A plurality of spikes or cleats are caused to depend from the bottom of the sole by an actuation mechanism that has a rotatable knob projecting from the back of the athletic shoe. The structure of the sole provides for openings to the undersurface to allow spikes to pivot outwardly beyond the undersurface of the sole. The actuating device has an actuator slide that translates a transverse movement to a pivotal movement of the spikes.

Abstract: A stud for a tire to improve traction on a roadway which includes a hardened pin mounted in a steel jacket and extending therefrom to engage the roadway, wherein the stud is sized for insertion into openings in the tire tread. The pin is retractable into the jacket thereby removing the pin from contact with the road surface and providing non-studded as well as studded service from the same tire. A spring in the stud jacket is used to propel the pin out of the jacket into the extended position when the pin is released from the securing mechanism. The securing mechanism consists of a series of projections on the pin in interaction with a series of grooves in the interior of the stud jacket. The pin is released from the retracted position by manually pressing the pin further into the jacket until the securing mechanism releases it.

Abstract: A show sole is provided with one or more chambers therein. A piston-like cleat plate is fitted for vertical movement in each chamber. Cleats are fitted to the cleat plates, and openings are provided in the chamber bottom for permitting the cleats to pass therethrough when extended. The cleat plates are spring-biased to a retracted position. A source of fluid pressure such as a squeeze bulb type air pump is connected for supplying fluid pressure to the chambers to cause the cleat plates to move downwardly to extend the cleats from the sole bottom, to provide gripping traction. An inflatable member can be provided above the cleat plate in each chamber. A pair of soles may be connected via supply lines to a remote pump positionable at a convenient location on the wearer's person.

Abstract: Shoes with two sets of elastic nails on the sole are provided. When one wants to walk on snowy ground or ice, a key may be used to allow the two sets of nails to project from the sole to prevent sliding. If he wants to walk on the ground without snow or in a room, the key may be turned off and then the nail sets retract into the sole. This result is achieved by means of a structure which comprises a box with the shape similar to the sole. The box is installed between the insole and the sole. The box includes the body, a switching device, a moving board, two nail sets and a sole cover. When the switching device is turned, the moving board moves straight. The thicker part of the moving board to be inserted into the upper part of the nail set forces the nail set to project from the hole on the sole to constitute a pair of sliding-proof shoes. On the contrary, when the switching device is reversed, the nail set retracts into the sole so that a pair of common shoes results.

Abstract: The shoe has spikes which can be extended and retracted by T-shaped rail members which are actuated by respectively impacting the front or the rear of the shoe sole against a solid target such as a wall or road surface.

Abstract: The present disclosure is related to a foldable anti-slip device mounted at the bottom of shoes adapted for mountain-climbing and snow-walking use, which consists of a pivotable slip-proof member, outwardly exposed for effecting the purpose and retractably received in a concave recess when not needed.

Abstract: A golf shoe is proposed which has a sole that is provided with spikes. To permit the golf shoe to perform effectively as a walking shoe and as a striking shoe, each spike is inserted in and axially movable relative to the sole and on top of the sole comprises a pressure-applying plate which bears on the top of a resilient abutment.

Abstract: A sports shoe or boot has a sole of flexible plastic material, with gripping projections or studs of a wear-resistant material thereon; disposed between the sole and a bearing surface on the projection is a compressible ring member, to produce a cushioning effect.

Abstract: The invention is with respect to fixing studs in the shoe soles. A sport shoe, as an example of the invention has pockets in its sole, into each of which the wider base plate at the end of a stud may be slipped and then locked in position tightly by a keeper washer with outward lock parts on its edge locking into grooves in the walls of the pocket like a bayonet-joint. For stopping the stud turning in its pocket it may have a hollow in its base locking onto an unround horn or the like on the floor of the pocket.

Abstract: Anti-skid spikes for use on shoes or boots, to provide firm footing on ice or snow. The spikes are readily extendable and retractable without the use of keys or tools, e.g., when entering a car or a house where floors and rugs might otherwise be damaged thereby. A mechanism for selectively extending and retracting the spikes is sealed within the sole and heel of the footwear to provide improved esthetics and to prevent interference with the mechanism, as by moisture and ice, when temperatures vary from hot to cold.

Abstract: A convertible sports device has a housing, and sport members movable between an extended and a retracted position relative to the housing. An arresting member is provided, which in a first position abuts against a first face of each of the sport members so as to arrest them in the extended position, and in a second position abuts against another face of the sport members so as to arrest the latter in the retracted position. The housing may be formed as a bottom portion of a shoe or may be attachable to the shoe. The arresting member may be actuated by an actuator which, in turn, may be actuated by a foot of a user so that the sport members may be retracted or extended without the need to use one's hands.

Abstract: This invention relates to a spike shoe including a sole, a plurality of spike pins mounted thereupon and a resilient elastic material fixed with the sole, the resilient elastic material having such a thickness that each spike pin can be concealed therein, and including a plurality of holes in order to permit the spike pins to protrude from the resilient elastic material when the weight of human body is applied to the spike shoe, whereby the spike pins are forced into the ground. When the weight is removed from the sole, the spike pins are retracted into the resilient material leaving any mud which may have been stuck to the pins on the smooth bottom surface of the sole from which the mud may be easily removed.

Abstract: A golf shoe is provided with a hinged plate connected to the outer edge of the golfer's back shoe which tilts the shoe inwardly when worn by the golfer when the plate is angled with respect to the shoe's sole. A retainer means holds the plate flat against the shoe sole when the plate is not in use. A holding means is provided to hold the plate in the angled position when the shoe tilting is desired.

Abstract: A shoe usable for walking or roller skating is disclosed wherein the roller skating means is contained within the sole of the shoe. The skating means is selectively engageable so that the shoe can be used with little effort for either mode of transportation.