Abstract: An auger can be drivingly coupled to an input shaft of a wheel reduction gearbox. The wheel reduction gearbox can drivingly couple the input shaft to an output shaft of the wheel reduction gearbox. The output shaft can be drivingly coupled to a sweep end wheel. The sweep end wheel can include a plurality of tread brackets, a wheel plate, and an adjustable coupling corresponding to each of the tread brackets. Each adjustable coupling can selectively couple one of the tread brackets to the wheel plate in one of a plurality of radial positions. Each of the plurality of radial positions can correspond to the tread bracket being located at a different radial distance from a central axis of rotation of the wheel plate.

Abstract: A motor vehicle tire traction device having a traction-blade plate that can be selectively mounted indefinitely to a motor vehicle tire with the plate providing sleeves for a plurality of traction blades where one or more of the blades can be quickly inserted into a traction blade sleeve providing traction to said tire wherethen the traction blade(s) can be stored until needed again.

Abstract: The present invention relates to an anti slip device (10) for a wheel (40) having a first side (40a), a second side (40b) and a tread (41). A securing arrangement (100) is used to secure the anti slip device (10) to the wheel (40). The securing arrangement (100) of the anti slip device (10) comprises a tensioning member (110) adapted to be foot operated by a user between a first position, in which the anti slip device (10) can be removed from the wheel (40), and a second position, in which the anti slip device (10) is substantially secured to the wheel (40). The present invention also relates to a method for operating the anti slip device (10).

Abstract: The problem of damage sustained to a traction device and the extendable traction elements thereof due to tire-roadway interaction forces exerted on the traction elements while extended over the tire tread area is solved by resiliently coupling a traction assembly within a tire rim to permit movement and repositioning of the traction assembly relative to the rim and biasing back to the original position. Preferably the traction assembly is mounted to a traction hub through a resilient coupling, and with the traction hub permitted to rotate relative to the rim. Also preferably, the invention provides for full retraction and extension of the curved traction elements by use of a linear actuator. The present device delivers increased traction in slippery conditions while protecting the traction device and surrounding mechanics from damage due to the impact of roadway forces, and the device is effectively stowed within the rim when not in use.

Abstract: A tire friction device utilizes a sub-frame assembly with a length adjustment assembly to grip a tire. Grip members are used to grip a tire. The grip members attach to the tire tread and/or tire side walls utilizing friction components. The grip members have friction components on their outer surface to provide additional friction for vehicle (e.g., car or truck) tires on surfaces such as snow, ice, loose gravel and mud that is easy to apply and remove from a tire.

Abstract: An anti-skid device for a tire of a vehicle wheel includes an anti-skid raceway designed to be placed on the circumferential tread of the tire. An elongate element extends in sliding manner through rear attachment means arranged along the periphery of the rear edge of the raceway. Means for tightening the raceway include at least one guide member passing through the raceway to let a part of the elongate element slide freely transversely to the raceway, in front of the front edge of the raceway, elastically extensible means arranged along the elongate element, and securing means to connect at least one end of the elongate element to the front element.

Abstract: A device and method for increasing tire friction is provided. The device is especially suitable for use on slippery roads, such as roads which have snow and/or ice. The device is permanently secured to the vehicle wheel assembly and easily installed over the tire for use. The device has a plurality of friction grips which independently move from an inactive first position secured to a sidewall of a housing center of the device to an active second position secured over the tire of the vehicle wheel assembly.

Abstract: In an anti-skid device in which anti-skid bodies are connected to be arranged in the circumferential direction of a tire of a car, connecting/separating workability is simplified. Connecting components are also simplified in their structure and production. Rod-like and tube-like connecting components are attached to the front-side and the rear-side of each anti-skid body. A manipulation member is configured such that an attaching rod and a connecting rod arranged in parallel with each other are connected by a manipulation rod, the attaching rod and the connecting rod are inserted into attaching holes and connecting holes of the tube-like connecting component, and the manipulation member is thus movable in the crossing direction of the tube-like connecting component. An elastic member is provided which applies a backward movement force to the manipulation member.

Abstract: A traction device for a tire having a hub for attachment to the tire's wheel. At least one arm extends outwardly from the hub, with the arm attached to a gripping section that is capable of contacting the tire. A reversible, rotatable cam attached to the arm and the gripping section controls the movement of the device.

Abstract: A traction enhancement device for mounting on a wheel of a vehicle comprising a pair of traction assemblies each comprising a central structure for positioning adjacent to a wheel and a plurality of traction structures mounted on and radiating outwardly from the central structure. A mounting structure for releasably mounting the traction assemblies together may be configured to permit adjustment of a distance between the central structures of the traction assemblies. A biasing structure may be configured to selectively apply an inwardly directed force on the traction assemblies to bias the traction structures toward each other and against the circumferential surface of the wheel. At least one traction structure includes a rigid element configured to be positioned adjacent to the circumferential surface and a flexible element positioned along a portion of the rigid element to be positioned adjacent to the circumferential surface when the device is mounted on the wheel.

Abstract: The problem of damage sustained to a traction device and the extendable traction elements thereof due to tire-roadway interaction forces exerted on the traction elements while extended over the tire tread area is solved by resiliently coupling a traction assembly within a tire rim to permit movement and repositioning of the traction assembly relative to the rim and biasing back to the original position. Preferably the traction assembly is mounted to a traction hub through a resilient coupling, and with the traction hub permitted to rotate relative to the rim. Also preferably, the invention provides for full retraction and extension of the curved traction elements by use of a linear actuator. The present device delivers increased traction in slippery conditions while protecting the traction device and surrounding mechanics from damage due to the impact of roadway forces, and the device is effectively stowed within the rim when not in use.

Abstract: The problem of damage sustained to a traction device and the extendable traction elements thereof due to tire-roadway interaction forces exerted on the traction elements while extended over the tire tread area is solved by resiliently coupling a traction assembly within a tire rim to permit movement and repositioning of the traction assembly relative to the rim and biasing back to the original position. Preferably the traction assembly is mounted to a traction hub through a resilient coupling, and with the traction hub permitted to rotate relative to the rim. Also preferably, the invention provides for full retraction of the curved traction elements. This inventive device delivers increased traction in slippery conditions while protecting the traction device and surrounding mechanics from damage due to the impact of various roadway forces, and the device is effectively stowed within the rim when not in use.

Abstract: A tire traction device having a plurality of radial tensioning arms extending radially from a central hub, a fraction pad coupled to each of the radial tensioning arms at an end opposite the central hub and the radial tensioning arms including rigid bodies movable in a radial direction relative to the central hub along radii spaced about the central hub at fixed angular positions to provide tensioning of the traction pads against a tire. A rotatable tensioner may be disposed within the central hub, the rotatable tensioner including curved guide vanes to which the tensioning arms are coupled. Each of the tensioning arms includes a pin configured to be seated into, and slide within, the curved channel so as to remain in a substantially constant angular position relative to the outer circumference of the central hub while being displaced radially in response to a rotation of the rotatable tensioner.

Abstract: An anti-skid device for a tyre of a vehicle wheel includes an anti-skid raceway designed to be placed on the circumferential tread of the tyre. An elongate element extends in sliding manner through rear attachment means arranged along the periphery of the rear edge of the raceway. Means for tightening the raceway include at least one guide member passing through the raceway to let a part of the elongate element slide freely transversely to the raceway, in front of the front edge of the raceway, elastically extensible means arranged along the elongate element, and securing means to connect at least one end of the elongate element to the front element.

Abstract: A tire friction device utilizes a sub-frame assembly with a length adjustment assembly to grip a tire. Grip members are used to grip a tire. The grip members attach to the tire tread and/or tire side walls utilizing friction components. The grip members have friction components on their outer surface to provide additional friction for vehicle (e.g., car or truck) tires on surfaces such as snow, ice, loose gravel and mud that is easy to apply and remove from a tire.

Abstract: A tire traction device having a plurality of radial tensioning arms extending radially from a central hub, a fraction pad coupled to each of the radial tensioning arms at an end opposite the central hub and the radial tensioning arms including rigid bodies movable in a radial direction relative to the central hub along radii spaced about the central hub at fixed angular positions to provide tensioning of the traction pads against a tire. A rotatable tensioner may be disposed within the central hub, the rotatable tensioner including curved guide vanes to which the tensioning arms are coupled. Each of the tensioning arms includes a pin configured to be seated into, and slide within, the curved channel so as to remain in a substantially constant angular position relative to the outer circumference of the central hub while being displaced radially in response to a rotation of the rotatable tensioner.

Abstract: A traction device for a tire having a hub for attachment to the tire's wheel. At least one arm extends outwardly from the hub, with the arm attached to a gripping section that is capable of contacting the tire. A reversible, rotatable cam attached to the arm and the gripping section controls the movement of the device.

Abstract: A slip-proof cover for a vehicle tire for use in adverse weather conditions, including snow or ice, with a configuration that allows a simple mounting. The cover is highly reliable and positionally stable, and has a good mechanical performance with respect to abrasion. The cover includes a band made of textile fabric including cords made of strands that may be of varying thicknesses and the textile ligament may be taffeta.

Abstract: A traction device for a tire having a hub for attachment to the tire's wheel. At least one arm extends outwardly from the hub, with the arm attached to a gripping section that is capable of contacting the tire. A reversible, rotatable cam attached to the arm and the gripping section controls the movement of the device.

Abstract: The present invention relates to a self-rescue apparatus for automobiles which is an auto creeper tread comprising a rectangular skid-proof pad 1 and a bar-shaped track 2 designed according to the width of an automobile wheel. Three or four rows of circular holes 3 are disposed in an orderly manner on the skid-proof pad 1. The edge of each of the circular holes 3 protrudes outwards. Two rows of rectangular holes 4 are disposed on two sides of the skid-proof pad 1. Two protruding reinforcing grooves 5 are disposed in the middle of the skid-proof pad 1. A row of small circular holes 6 are disposed on each of the two ends of the skid-proof pad 1. The track 2 is a Tetoron fabric strap of high strength and wear resistance. The track 2 is engaged with the skid-proof pad 1 by placing an end of the track 2 on top of the small circular holes 6 of the skid-proof pad 1, fastening with a press plate 7 and fixed by means of rivets.

Abstract: A wheel hub assembly having a rim, an outer cap and an inner body joined to the cap within the rim and carrying automatically extendable and retractable curved traction elements. The traction elements are curved pieces with inner end portions disposed on the inside of the tire when retracted and outer ends substantially concealed in gaps between the rim and the cap when retracted, and extendable into active positions overlying the tread of the tire by electric motors each driving two rack-and-pinion drives through T-drives between two traction elements. Channel-shaped tracks and guide rollers on the hub base support the fraction elements, which have traction-enhancing ribs and studs on their outer end portions. An alternative embodiment has a hollow annular hub body on which the traction elements are mounted and guided, in two circular slots, with the motors inside the annular body, the body being supported on a framework to be bolted to the central hub element of a conventional wheel.

Abstract: An anti-skid system for vehicle wheels includes gripping elements which are intended to make contact with the tread of the wheel and are arranged at the free ends of arms joined to a central connecting body, a clamping element (15) apt to be fastened to the rim of the wheel, and a constraining assembly able to establish a connection between the arms (21, 22) and the clamping element (15), the arms (21, 22) being in the form of flexible laminar strips and the constraining assembly including at least one linear traction member (30) which is non-extendable, but adjustable lengthwise; an advantageous clamping element (15) which makes the system more cost-effective and mounting thereof on the wheel more convenient is also described.

Abstract: An automotive device for increasing the traction on a supporting surface including a body mountable on a wheel hub and carrying a plurality of radially extending traction arms that are mounted for movement between retracted positions and extended positions in which the outer ends of the arms lie over the tread of the vehicle. Several different embodiments are shown, including L-shaped flexible plastic arms with enlarged outer ends having bumps and openings for increased traction, arcuately curved arms of substantially uniform width, elongated spring coils supported in nozzles for directing the outer ends into extended positions, either across the tread or in a V-shaped configuration over the tread, and others. Automatic actuators include rotary motors driving pinion gears meshing with racks on the traction arms, linear actuators for the spring coils, and others.

Abstract: A tire cable chain system is disclosed. The tire cable chain system includes a continuous and unbroken outboard annular holder; a tensioning cable adapted to form at least one tensioning cross member and a continuous and unbroken inboard annular holder disposed in physical contact with the outboard annular holder; a first receiver guide disposed on the outboard annular holder and adapted to receive the tensioning cable; a second receiver guide disposed on the inboard annular holder and adapted to receive the tensioning cable; a hub having a tensioned spool shaft connected to the tension cable; at least one stabilizing cable connected to the hub and the outboard annular holder; and at least one cross member disposed at a physical connection between the outboard annular holder and the inboard annular holder.

Abstract: A road gripping and traction assembly includes an assembly that is removably positionable on a vehicle wheel that includes a rim having a plurality of threaded bolts extending therethrough. The assembly includes a hub having an inner surface, an outer surface and a peripheral edge. The hub has a plurality of apertures extending therethrough. The number of apertures equals the number of threaded bolts. Each of the apertures is positioned for selectively receiving one of the threaded bolts. A plurality of arms each have an attached end that is attached to the peripheral edge and a free end extending outwardly away from the hub. Each of a plurality of gripping members is pivotally coupled to one of the free ends such that the gripping members are selectively positionable in a stored positioned adjacent to a side wall of the wheel or in a gripping position abutting threads of the wheel.

Abstract: To fasten snow chains to vehicle wheels, an adapter device (100; 200; 300; 400) is used that can be fastened to at least one wheel bolt and comprises a body that is constructed to be connected to connection and installation elements of the snow chains. The adapter device comprises at least one magnet (120; 403) connected to its body which is applied to the head (130) of at least one wheel mounting bolt, so as to retain the body of the adapter device on the wheel by means of magnetic retention.

Abstract: A tire cable chain system is disclosed. The tire cable chain system includes a continuous and unbroken outboard annular holder; a tensioning cable adapted to form at least one tensioning cross member and a continuous and unbroken inboard annular holder disposed in physical contact with the outboard annular holder; a first receiver guide disposed on the outboard annular holder and adapted to receive the tensioning cable; a second receiver guide disposed on the inboard annular holder and adapted to receive the tensioning cable; a hub having a tensioned spool shaft connected to the tension cable; at least one stabilizing cable connected to the hub and the outboard annular holder; and at least one cross member disposed at a physical connection between the outboard annular holder and the inboard annular holder.

Abstract: A method for encapsulating a monitoring device for a pneumatic tire, wherein the monitoring device includes a threaded rod and a pressure sensor, includes the steps of positioning the monitoring device in an encapsulation chamber of an encapsulation device with a portion of the threaded rod extending from the encapsulation chamber; engaging the threaded rod against the encapsulation device to suspend the electronic monitoring device within the encapsulation chamber; and filling the encapsulation chamber with encapsulation material to encapsulate the monitoring device to form an encapsulated monitoring device. The encapsulated monitoring device may be mounted to a pneumatic tire with an attachment patch.

Abstract: A device for encapsulating a monitoring device for a pneumatic tire with an encapsulation material includes an encapsulation body having an encapsulation chamber. The monitoring device has at least a pressure sensor and an antenna. A damming element is carried by the encapsulation body in an adjustable manner such that the damming element contacts the pressure sensor of the monitoring device when the monitoring device is disposed within the encapsulation chamber. The damming element prevents the pressure sensor from being clogged with the encapsulating material when the monitoring device is encapsulated. The antenna of the monitoring device is held in a channel formed in the body when the monitoring device is disposed within the encapsulation chamber. The connection between the antenna and the body holds the monitoring device in a floating disposition in the encapsulation chamber. The damming element is in the form of a tube that also helps carry the monitoring device in the floating disposition.

Abstract: An emergency traction device is easily and securely fitted on vehicles having tires of different diameters and widths. A single winch sizes and secures the traction device for the proper tire diameter and then for the proper tire width.

Abstract: A traction device for vehicle wheels has an expandable and contractible member mounted next to the vehicle wheel. The traction device has a tire with extending studs that is expandable by air pressure to increase the diameter of the tire. The tire is contracted by releasing the pressurized air within. The tire is expanded to a diameter just larger than the vehicle wheels so that the studs will engage the roadway to provide traction. The tire may be inflated manually from a pressurized air source and deflated manually. A pressure source and control valves may be provided to control the inflation and deflation of the tire remotely.

Abstract: An improved anti-skid chain structure is equipped with a plurality of chain units that are arranged in parallel around a tire. The chain units are coupled together end to end on each side of the tire by a plurality of connection bars and a plurality of two-ended hooks and coupling members. A locking member mounted to the connection bars is used to lock the chain to the tire and a tightening member secured to the connection bars disposed on one side of the tire firmly secures the chain to the tire during use.

Abstract: A tire chain assembly including two stays hinged at one end on a housing and supporting wall chains which hold tread chains in place on the tread of the tire when they are pulled tight as the stays are drawn together by a resilient linkage. Arms or resilient linkages control displacement and vibration of the stays when the wheel is moving. The device enables gripping equipment to be fitted quickly and easily and is suitable for use on snow-covered, muddy, sandy, or vegetation-covered terrain.

Abstract: The present disclosure concerns an emergency traction device which may be easily and securely fitted on vehicles having tires of different diameters and widths. A first winch sizes and secures the traction device for the proper tire diameter and a second winch sizes and secures the traction device for the proper tire width.

Abstract: A tire add-on traction apparatus includes a ring-shaped housing which includes a ring-shaped base wall which has a circular inner edge portion and a circular outer edge portion. A hoop-shaped inner wall is connected to the inner edge portion of the base wall, and a hoop-shaped outer wall is connected to the outer edge portion of the base wall. The inner wall includes a plurality of inner access apertures distributed circumferentially around the inner wall. The outer wall includes a plurality of outer access apertures distributed circumferentially around the outer wall. Each of the inner access apertures is in alignment with one of the outer access apertures. A plurality of traction elements are supported by the housing. Each traction element includes a tire-contacting portion and a radial adjustment portion which extends through one of the outer access apertures and one of the inner access apertures.

Abstract: A vehicle wheel anti-slip device which is removably mountable on a vehicle for adding traction in snow, ice, etc. The device includes a frame having a generally rigid polygonal shape, a plurality of ground engaging claws including a first leg portion locatable over the perimeter of the vehicle wheel and a second leg portion and at an angle to the first leg portion and locatable over the front side of the vehicle wheel. The device also includes a plurality of support brackets which are pivotally mounted on the frame, and the claws are each pivotally mounted to a respective one of the support brackets. In addition, a tension force device including a tension spring and chords connected to each of the support brackets biases the plurality of claws simultaneously generally towards the center axis of the tire so as to be pressed thereagainst.

Abstract: A traction device for a tire for a driven wheel of a vehicle includes a base for resting circumferentially upon the tread of a tire. The device includes an adjustable clamp assembly extending across the base longitudinally and includes a front and a rear jaw which, when mounted, hold onto the sidewalls of the tire. The front jaw is adjustable in any and all of three different settings: coarse, normal and fine.

Abstract: A traction device for wheeled vehicles comprises a frame for securing to a wheel of a vehicle; a grip enclosure operably secured to the frame; a grip assembly radially slidably received within the grip enclosure; and an actuator secured to the frame for extending and retracting the grip assembly in the radial direction of the wheel. The grip assembly includes a flexible outer end portion adapted to automatically follow substantially the peripheral cross-sectional shape of the tire when in the extended position. The grip enclosure includes a guide portion adapted to receive and straighten the flexible outer end portion when the grip assembly is in the retracted position. A sprocket chain is operably secured to the flexible outer end of the grip assembly. It provides rigidity to the flexible outer end in the plane of rotation of the tire and flexibility in the transverse direction into the plane of the tire.

Abstract: A traction enhancing device for automobile tires includes a support ring and a plurality of cleat assemblies which are mounted on the support ring. The cleat assemblies include cleat members which extend over the tread portion of a tire and which include projections to enhance traction. The cleat members are able to slide inwardly in the cleat assemblies to accomodate flexing of the tire and the cleat members are attached to the cleat assemblies by latches which facilitate rapid installation and removal of the device without a need for tools of any type or for jacking up of the vehicle.

Abstract: A tire traction apparatus for use on wheels having a rim and a tire where the rim has first and second upstanding, spaced apart side portions on opposite sides thereof, and outer facing braking surfaces thereon and the tire has first and second bead portions which cooperate with the first and second side portions to secure the tire to the rim. The apparatus includes a transversely extending member operable to extend transversely across the tire and includes first and second connecting devices cooperating with the tire for connecting the transversely extending member to opposite sides of the tire without interfering with the outer braking surfaces.

Abstract: The invention relates to an antiskid device for vehicle wheels, having a retaining device which is coaxially attached on one side of the wheel rim or the wheel disc and which via arms disposed transversely of the running direction and engaging over the wheel running surface retaining an antiskid means bearing against the wheel running surface, the antiskid means being retained on both the side remote from the retaining device and also on the side adjacent thereto in an opening of the arm and being laterally movable in the zone of the tire base, while on the side remote from the retaining device the opening of the arm is a longitudinal opening which is disposed transversely of the running direction and in which the antiskid means attaching end located in the longitudinal opening is located transversely displaceably in relation to the running direction.

Abstract: An antiskid device for vehicle wheels, having a retaining device which is coaxially attached on one side of the wheel rim or the wheel disc and which via arms disposed transversely of the running direction and engaging over the wheel running surface retains an antiskid chain bearing against the wheel running surface, the arms being pivotably attached to the retaining device via joints whose pivots are at right angles to the wheel axle and to the wheel radius extending through the joint, while via the joint the arms can also be pivoted around an axis parallel to the wheel axle, the arm ends attached in the joint being located in a recess in the retaining device which opens in the direction of the wheel side and has inclined lateral surfaces which return the arm end from an inclined position to a radial position.

Abstract: A tire anti-skid device comprises a mounting member removably mounted on a side surface of a wheel of an automobile in such a manner as to be coaxial with the wheel; a plurality of arms made of elastic bodies, which radially extend from the mounting member; ground-contact portions each being formed by bending the leading edge of each of the arms, which are intended to be brought in contact with a tire tread surface; a ground-contact ring for connecting the adjacent ground-contact portions with each other, which is intended to be brought in contact with the tire tread surface; and reverse portions each being formed at a junction portion between the arm and the ground-contact portion, which are intended to reverse the ground-contact portions in such a manner that the inner surfaces in contact with the tire tread surface becomes the outer peripheral surfaces.

Abstract: A new and improved apparatus for tightening a chain installed on a tire that is mounted on a wheel of a motor vehicle includes a hub assembly and a plurality of tension assemblies. Each tension assembly includes a first end for connecting to the hub assembly, a tensioning element connected to the first end, and a second end connected to the tensioning element. The second end is connected to a portion of the chain, such that the hub assembly and the tension assemblies exert tension on the chain in a radial direction toward the hub assembly. More specifically, the tension assemblies are attached to the hub assembly and the chain in pairs, and the tension assemblies of each pair are arranged in opposed relation. That is, the first ends of each pair are in opposed relation with respect to the hub assembly, and the second ends of each pair are in opposed relation with respect to the chain. At least one of the tension assemblies further includes a threaded shaft movable within a sleeve.

Abstract: An anti-skid device for use on pneumatic tires of an automotive vehicle includes a supporting ring rotatably provided on the outer circumferential periphery of a mounting plate that is detachably mounted on the wheel portion of the automotive vehicle, a plurality of ribs formed from a material having elasticity and toughness that are provided on the supporting ring in a radial fashion and are bent so as to extend from the outer side of a pneumatic tire to a tread thereof, first and second endless bands provided on the leading-end portion of each of the ribs in such a manner as to be located within the width of the tread of said pneumatic tire, rivets secured at portions where the first and second bands intersect the ribs, and a counter-measure provided on either of the first and second bands for preventing an imbalance in the degree of stretch between the first and second bands.

Abstract: A snow chain traction kit for the drive wheels of a wheelchair, the kit including a number of pairs of attachment strips for each wheel and a traction strap for each pair of strips, each of the straps having a plurality of chains for providing traction on ice or snow and each pair of strips being mounted on opposite sides of the wheels, with the straps wrapped around the tire and being attached to one pair of strips.

Abstract: The anti-skid device includes a housing capable of being removably fastened on an outer side of a vehicle wheel. An anti-skid travel path, formed of chains, is connected to a plurality of radial arms of the housing. The chains are automatically positioned on the wheel of the vehicle upon advancement of the vehicle, when an elastic member extending through the housing pulls the housing in a direction towards the wheel. A lever is provided between the housing and the wheel and includes an extension which extends through a radial passage of a fastening device connected to a nut of the wheel.

Abstract: The invention relates to a device for the releasable attachment of an antiskid device to the rim of a motor vehicle wheel, having: a base disc which is formed with a central opening and can be screwed coaxially to the outside of the rim; and a more particularly disc-shaped bearing member which can be coaxially attached to the outside of the base disc by a snap closure disposed in the zone of the opening and which cooperates with the base disc to form an annular gap in which the inner edge of a supporting disc is inserted rotatably mounted, while attached to the supporting disc are radially outwardly extending arms bearing the antiskid device, the base disc taking the form of a flat disc whose central opening receives a central projection of the bearing member, said projection being positively and releasably retained in or on the opening and secured in the attached position by a latching member which locks the releasable connection.

Abstract: A universal tire traction apparatus adapted to being mounted on the outer hub of the wheel of a vehicle generally comprising a plurality of cleat-like members extending transversely to the tread-wall portion of a tire while being supported by a brace assembly attached to an adapter plate mounted on the wheel. The cleat-like members are adapted to be slidably adjustable to fit a variety of wheel and tire sizes.

Abstract: An anti-skid device for use on pneumatic tires of an automotive vehicle includes a supporting ring rotatably provided on the outer circumferential periphery of a mounting plate that is detachably mounted on the wheel portion of the automotive vehicle, a plurality of ribs formed from a material having elasticity and toughness that are provided on the supporting ring in a radial fashion and are bent so as to extend from the outer side of a pneumatic tire to a tread thereof, first and second endless bands provided on the leading-end portion of each of the ribs in such a manner as to be located within the width of the tread of said pneumatic tire, rivets secured at portions where the first and second bands intersect the ribs, and a counter-measure provided on either of the first and second bands for preventing an imbalance in the degree of stretch between the first and second bands.