Abstract: A clamping apparatus for clamping an antiskid device for tires is disclosed, in which the antiskid device comprises a plurality of rubber antiskid members each of which is sandwiched by and connected to a pair of parallel side members through a metal clasper, wherein said clamping apparatus comprises a circular tension member made of rubber, and said plurality of metal claspers, each of said metal claspers having a first engagement portion adapted for engaging with said side members, a second engagement portion adapted for engaging with a corresponding one of said antiskid members and a third engagement portion adapted for engaging with said circular tension member, said circular tension member when in operation being fitted in said third engagement portion, whereby said metal claspers can be directed or attracted toward the center of said tire by means of the elastic reaction force of said circular tension members.

Abstract: This invention relates to a continuous snow chain comprising three cords or chains disposed in zig-zag patterns and connected to each other in a network of cords or chains of a finite length including two parallel rows of substantially diamond-shaped openings. One cord or chain constituting one boundary of the network of cords or chains is slidably connected to a first retaining cord at each of the zig-zag points constituting the one boundary of the network of cords or chains, which first retaining cord includes means for connecting two extremities thereof to one another. The other cord or chain constituting the other boundary of the network of cords or chains is slidably connected to a second retaining cord at each of the zig-zag points constituting the other boundary of the network of cords or chains, which second retaining cord includes means for connecting two extremities thereof to one another.

Abstract: A Tire Snow Belt made of a strip of rubber mounted on the circumferential surface of an automobile tire and having multiplicity of protrusions on the outside surface, that are of proper shape for increased traction on snow and interlinking ends with devices to join them and further having lugs for use, together with a cord, to tie the Tire Snow Belt securely on both sides of the tire; and an insert connected between the ends of the Tire Snow Belt will prolong its length for using it with a larger tire size.

Abstract: A traction enhancing device for use with a tire on a vehicle to increase traction of the tire during inclement weather is provided. A first traction enhancing member has a predetermined length for mounting around a tire of a vehicle in a position offset from a central axis of the tire. A second traction enhancing member has a predetermined length for mounting around a tire of a vehicle in a position offset from a central axis of the tire and being spaced apart and substantially parallel to the first traction enhancing member. A first connecting member has a first end affixed to said first traction enhancing member and a second end affixed to said second traction enhancing member for securing said first and second traction enhancing members together. The first connecting member is substantially orthogonally positioned relative to the first and second traction enhancing members and is disposed on a first side of the tire.

Abstract: Anti-skid device especially for motor vehicle comprising elastic arms (2) assembled to a disc unit. In use the disc unit is brought close to the vehicle wheel, the friction of which is to be increased, and the outer ends (3) of the arms are successively drawn in between wheel and ground to increase the friction. Apart from their friction increasing portion (3) the arms (2) are extremely elastic and extend practically to the centre of rotation and bearing of the disc. Above the arms there is arranged a disc (5) extending out to the vicinity of the transition of the arms (2) into the friction increasing members (3). Moreover, beneath the arms a ring (6) is arranged which is attached between the arms (2) to the points (7) of attachment of the disc. In this way the disc is given a plane appearance ensuring that the friction increasing members (3) of the arms can obtain defined feed-in positions relative to the vehicle wheel.

Abstract: An antiskid traction device adapted to be attached to vehicle tires which comprises a right side frame member having a locking pin, a left side frame member having a pivotable locking member adapted to engage the locking pin, at least two antiskid members disposed at each of the end portions of the right and left side frames, the antiskid members being provided with a plurality of studs thereon for improving the traction thereof, and an adjusting member for changing the length of at least one of the antiskid members so that the device can be adjusted for all tire sizes.

Abstract: An antiskid traction device adapted to be attached to vehicle tires which comprises a right side frame member having a locking pin, a left side frame member having a pivotable locking member adapted to engage the locking pin, antiskid members disposed at each of the end portions of the right and left side frames, the antiskid members being provided with a plurality of studs thereon for improving the traction thereof, and an adjusting member for changing the length of at least one of the antiskid members so that the device can be adjusted for all tire size.

Abstract: A non-skid device for motor vehicle tires comprises at least two strands of cable joined at their ends and having adjustably threaded thereon a plurality of pairs of half-brackets separated from one another by cross pieces in contact with the tread of the tire. The half-brackets are symmetrically disposed and have two branches, a first branch of each half-bracket resting against the tire tread. The second branch of one of the half-brackets in each pair rests against one of the flanks of the tire, and the second branch of the remaining half-bracket rests against the other flank of the tire.

Abstract: A track for wheeled vehicles comprises a plurality of flexible track links connected together. The track links have cylindrical holes at the edges of the track links, which holes extend in the longitudinal direction of the track. Cylindrical fastening units are rotatably arranged in the holes and are connected between the track links by fastening devices so that the cylindrical fastening units can turn in relation to each other around shafts parallel to the axles of the vehicle wheels.

Abstract: A traction device comprises a traction means such as, for example, a chain mounted on a wheel tire, and a connecting means to connect both end portions of the chain when mounted on. Said connecting means comprises a long extension having a first hook portion at one end, and a short extension having a second hook portion at one end corresponding to said first hook portion, the extension being pivoted to said long extension. Said first and second hook portions are respectively hooked to the end portions of the chain, and by rotating said long extension in a predetermined direction, both end portions of the chain are pulled to approach together so as to perform the connection.

Abstract: A non-skid device made of side link sleeve and pin chain for the spoked wheels of wheelchairs, bicycles and the like. The chain includes a removable pin to enable assembly of the chain onto the wheel with a spoke of the wheel captured between the free ends of a pair of spaced side links thereof. A slotted plate having major surfaces of larger dimensions than the transverse dimensions of the chain is rigidly fixed to the chain with its slot extending from between the free ends of such pair of spaced side links to the adjacent edge of the plate to pass the spoke upon assembly and removal. One embodiment includes a resilient shoe member. Alternate removable pin structures are described.

Abstract: Anti-skidding device for vehicle wheels with tires, particularly pneumatic tires, for ice and snow surfaces. The anti-skidding device 100 consists of a support disk 120 which can be attached at the wheel disk or rim 11. The support disk is provided, adjacent to its periphery, with a plurality of anti-skidding arms 140 which extend radially in a fixed manner, equally spaced apart or are pivotal about axes 141 which extend parallel to the wheel disk bearing axis 117. The anti-skidding arms are prebent sections of plastic which engage over the tire travel surface 14 and carry spikes at their free ends.

Abstract: The invention relates to an anti-skid device for vehicle wheels, comprising a plurality of U-shaped elements radially mounted on the wheel tire, and two series of connecting levers pivoted on each arm of said U-shaped elements. In order to provide an automatic mounting operation of the device on a vehicle wheel by simply advancing the wheel on the device, each arm of each of the U-shaped elements carries retaining means for said levers, which removably retain the U-shaped elements and levers in a relative position wherein each of said U-shaped elements forms a pre-set angle with the levers adjacent to the same, said angle corresponding to that formed when the device is mounted on the tire.

Abstract: A novel and improved traction device comprises a cable-type chain adapted to be mounted on radial tires for emergency use wherein a pair of lateral cables are adapted to extend cicumferentially along opposite sidewalls of the tire. A plurality of cross-members are arranged at spaced intervals transversely of and between lateral cables to which opposite ends of each of the cross members are connected. Each of the cross members is in the form of an elongated flexible member composed of a wire or wire-like material with an outer plastic coating in surrounding relation to the elongated flexible member. At least one sleeve member is slidably disposed in outer surrounding relation to each of the cross members, the sleeve members being composed of a high impact-resistant material in the form of a plurality of extruded tubular sections of limited length disposed in end-to-end relation to one another for extension along the length of each cross member.

Abstract: A cable-type tire chain comprises side members adapted to extend circumferentially around opposite side walls of a tire and cross members connected between the side members so as to extend over and across the tire tread, the cross members carrying traction means in the form of traction sleeves. A low profile articulated connection is provided between each end of each cross member and one of the side members, the connection comprising one connector element crimped on the cross member and another connector element crimped on the side member. One connector element has a T-shaped head and the other element has a bent-over tab with an opening through which the head is inserted. When the tab is flattened the head is trapped in the other connector element. The connection allows for hinging movement of a cross member both laterally and circumferentially of a tire.

Abstract: Device and method utilizing a fixed assembly attachable to a vehicle wheel back support plate, and a journaled, rotatable assembly carrying a track which may be deployed to engage and rotate with the wheel, or retracted for stable storage. The track is supported by leading and trailing arms carried on the rotatable assembly of the device, which arms in turn are movable concentrically to the device journal to expand the track around the tire and move inwardly upon completion of the track expansion to encircle the tire. Tracks utilizing linkages and rigid traction bars, or resilient members may be employed. Deployment and retraction power may be manual or provided by springs preloadable utilizing the rotational energy of the wheel, by fluid means, i.e. hydraulic vacuum and pneumatic, or by electric power, with the deployment and retraction being powered by a common means, or with the two movements or portions thereof being powered by a combination of power means.

Abstract: An improved wheel-mounted traction device comprising a plurality of molded plastic traction elements held in place about the periphery of a wheel or tire by belts or cables that engage the individual traction elements. Metal studs, integral plastic projections and suction cavities are disclosed as additional means for aiding in achieving improved traction results.

Abstract: A tire traction device includes at least two continuous circumferentially extending tread groove bead members adapted to nest within respective circumferentially extending tread grooves of selected vehicle tires. A plurality of circumferentially spaced transverse traction elements are integral with and connect the tread groove bead members. The traction elements are configured and dimensioned to overlie the tread of the tire and to thereby improve the traction thereof. Preferably a circumferentially extending traction element is provided intermediate the tread groove bead members and the transverse traction elements are arranged in circumferentially spaced pairs connecting the tread groove members and the circumferential traction element.

Abstract: A traction device which is adapted to be mounted on a tire is provided which comprises at least one ribbed strap. The strap is mounted with the ribs facing outwardly, and provides greater traction in snow.

Abstract: A wire rope traction device or cable tire chain includes lateral cables and a plurality of cross cables for extending between the lateral cables across the sole of a tire. Flat metal members secured to the lateral cables and ends of the cross cables form low profile articulated connections therebetween substantially adjacent the sole of the tire and radially outwardly from the tire sidewall flexing point for enabling a tighter grip on the tire by the tire chain. A belt attachment is employed in securing the traction device to a tire and is provided with a hook which is readily released for removal of the traction device.

Abstract: The clamping means of the anti-slip device includes a pair of locking members for selectively clamping the overlapping wire ends of the wire in a manner so as to only permit movement in a sense of a shortening of the effective length of the wire. A pair of release members are actuated simultaneously by a frame so as to move the locking members from an inclined position in which the wires are clamped to an upright position in which the wires are free to move through the locking members. The clamping wire is secured within the helical spring forming the resilient pull element at a point diametrically opposite the clamping means. With the anti-slip device fitted onto a wheel and with the release members in a locking position, the locking members allow the clamping means to move relative to the wire ends only in the sense of a shortening of the effective length of the wire.

Abstract: A snow chain for the automobile tires employing a single or a plurality of traction cords disposed circumferentially over the tread surface of the tire in a zig-zag pattern or diamond pattern, which traction cords are held in position by a pair of star-shaped tie cord assembly respectively disposed on each side of the tire, is disclosed. The outer points of each of said star-shaped tie cord assembly are connected to said traction cord in such a way that the tension on tie cords stretches the traction cord into a zig-zag or diamond pattern as said traction cord is being tightened over the tire tread surface. The inner points of each of said star-shaped tie cord assembly are slidably engaged by a retaining cord, which sliding relationship enables the retaining cord loop to expand and be slipped over the circumference of the tire, which arrangement ensures the easy installation and take off of said snow-chain.

Abstract: An antiskid device for mounting on pneumatic vehicle tires including a pair of annular elastomeric tubular sidewall elements interconnected by a plurality of spaced traction straps. Each traction strap is a laminated structure including a pair of spaced layers of woven nylon web having a layer of rubber interposed therebetween and bonded to each nylon layer. A body of rubber is bonded to one of said nylon layers and has traction nubs projecting therefrom. The tubular elements are each of natural rubber and each has an inside diameter of from about one-fourth inch to about one-half inch, and a wall thickness of from about one-eighth inch to about three-sixteenths inch.

Abstract: A traction device surrounding the tread and sidewalls of a tire. The device includes several elongated, molded plastic traction members having fastening strips secured to opposite ends. The traction members are secured about the periphery of the tire by a flexible belt or strap extending through the fastening strips at opposite sides of the tire so that the traction members extend across the tire tread from one side of the tire to the other. The traction members have a generally planar outer face. The inner face is formed with a plurality of suction cavities surrounded by sidewalls which abut the tread surface of the tire.

Abstract: A wire rope traction device for tires, and particularly radial tires, includes lateral cables and a plurality of cross cables for extending between the lateral cables across the sole of a tire. Flat metal members secured to the lateral cables and ends of the cross cables form low profile articulated connections therebetween substantially adjacent the sole of the tire and radially outwardly from the tire sidewall flexing point for enabling a tighter grip on the tire by the traction device.

Abstract: A slip prevention mat for vehicle tires which comprises a net-like structure having a rhombic lattice, said net-like structure being made of a rope provided with a cover layer, said cover layer being made of a natural or synthetic resinous material, first connecting means connected to one side of said net-like structure, for securing the net-like structure together at a position on the inside of the tire and second connecting means connected to the other side of said net-like structure for securing the net-like structure together at a position on the outside of the tire.

Abstract: The present invention is related to a snow chain for the automobile tires employing a traction cord disposed around the tread surface of the tire in a zig-zag pattern, which traction cord is retained in the position by a pair of star-shaped tie cords respectively disposed on each side of the tire and held in position by a pair of retaining cords, respectively. Said snow chain is constructed of one or more pieces of the continuous cords eliminating the need of the splicing of the traction cord.

Abstract: The side connector in a nonskid tire chain of this invention improves the invention of the herein identified copending application by providing spaced apart transverse bars, one carried by a bar-receiving member having an opening therein and the other by a bar-shaped member of substantial length slidable in the slot. Such construction provides supports for detachable elastic means extending between the transverse bars and relatively yieldingly urging the bar-receiving and bar-shaped members toward retracted position. One of the spaced bars extends between the walls of the bar-receiving member and the other projects on both sides of the bar-shaped member. The detachable elastic has a longitudinal slot so that an end portion can span each of the projections of the bar carried by the bar-shaped member and the other end portion can span the bar carried by the bar-receiving member.

Abstract: A snow anti-skid device a plurality of which are to be fitted at intervals around a motor vehicle wheel. Each device is in the form of a horseshoe-shaped strip-form yoke or stirrup comprised of a thickened central yoke section with curved limbs (20) for embracing the tire (15) extending away from opposite sides thereof. The free ends of the limbs are in the form of claws provided with magnets which engage under and adhere to the shoulders of the wheel rim. The thickened central region of the yoke may be provided with a coating of a resilient material, which can be molded on so as to extend through openings in the strip and provide a non-slip surface abutting the tread of the tire and a studded surface for engaging the ground. One or both limbs of the yoke or stirrup may be resiliently longitudinally extensible, or may be adapted for positive adjustment of its length.

Abstract: A tire-chain assembly for a vehicle-mounted wheel basically comprises annular inner and outer holders respectively engaging the inner and outer faces of the wheel. At least one traction chain crisscrosses over the road-engaging surface of the wheel between the two holders. The inner holder is provided with a flexible element that tightens the chain on the road-engaging surface. The outer end of the flexible element, which may be a chain, a rope or the like, is then secured to the holder on one of the surfaces of the wheel. There is provided a tightening mechanism so as to ensure self-locking of the tire-chain assembly on the wheel.

Abstract: A traction device that can be removably mounted on a vehicle tire includes a plurality of non-deformable straps of a length greater than width arranged at evenly spaced intervals around the tread of the tire. Each strap has a series of transversely running ridges on it with a pair of flexible resilient loops of nylon cord that pass through apertures in the ends of each strap along opposite side walls of the tire holding the traction assembly adjacent the tire tread thereby increasing traction in mud and snow.

Abstract: Provided is a novel emergency traction device adapted for use on all vehicles which use circular rubber tires or the like for movement. The traction device disclosed, by virtue of its design, takes advantage of inherent physical forces to maintain the device on the tire during forward motion and rotation of the tire, rather than depending on conventional securing devices. By doing so, the present device can be mounted entirely from one side of the tire in a snap-on motion without having to remove the tire from the vehicle, or elevating the vehicle, as was required by past traction devices.

Abstract: An improved tire-slip preventing device consisting of a plurality of cross belts arranged across a pair of parallel cords in the form of a ladder is constructed so that one end of every other cross belt can be detached from the associated cord. The detachable end of every other cross belt is attached to the associated cord after the device has been wrapped about the tire, whereby a very tight fit between the tire and the device can be easily obtained. The last cross belt at one end is made detachable or otherwise one of the cords is provided at an intermediate portion thereof with a separable link, thus permitting the device to be wrapped about the tire without raising the vehicle or driving it onto the device.

Abstract: A plurality of traction devices are positioned transversely in spaced relation on a tire tread. Each traction device has a first end portion arranged to be guided into one of a plurality of troughs that are positioned on the periphery of a circular member mounted to the unexposed or inside rim of a vehicle wheel. The troughs are separated by crests to form a wave-like configuration on the periphery of the circular member. The first end portion is guided into a trough without the need to visually locate the point of attachment on the circular member. A portion of the first end portion is too large to pass through the trough and serves to secure the traction device to the inside circular member. A second end portion of the traction device is secured on the opposite side of the tire by connection to a second circular member or to the ends of the other traction devices to tightly position an antiskid body portion of the traction device on the tire tread.

Abstract: A cable tire chain in which traction sleeves of the cross members are of the type in which a sleeve is formed by bending a generally rectangular metal strip into a generally cylindrical shape so that a pair of opposite edges of the strip are opposed in proximity and extend generally longitudinally of the sleeve. The opposed edges meet at a center region of the edges and are spaced elsewhere to provide exposed sharp corners for biting into ice. Each sleeve has a projecting tab at one end only for spacing that sleeve from an adjacent sleeve, the tab and other projections having sharp corners also.

Abstract: A tire-slip preventing device or "chain" for a vehicle tire comprise a ladder-like arrangement of cross belts attached to two parallel cords. The belts and cords are made from an easily deformable material so that the device may be wrapped around a tire. Rotatable discs are mounted at each end of each cross belt between the cross belts and the side walls of the tire to reduce wear on the side walls as the belts move relative thereto. The cross belts may be permanently attached to both parallel cords, or permanently attached at one end to one cord and detachably attached at the other end to the other cord.

Abstract: A traction device having a base that attaches to the wheel of a vehicle and a shaft projecting from the base has a moveable member on the shaft that forces a traction member to cover a portion of the tire tread when extra traction is desired, as in ice and snow. The traction member may be attached either to the base, in which case the moveable member pushes against it to radially spread it, or to the moveable member itself, in which case the device is moved toward the tire and spread at the time it is engaged.

Abstract: A non-skid device for vehicle wheels having a pair of cables, one for each side of the wheel, with positioning nipples fixed at intermediate points of the cables and stop nipples at each end of each cable. A plurality of elastic anti-skid members are provided having a safety hook on each end. The hook at each end of each anti-skid member is attached to one of the cables at a point adjacent a nipple and a hook of one of the members connects the end of a cable together at a stop member.

Abstract: Traction augmenting ribs are formed of a semi-rigid material particularly well-suited for placement around a vehicle tire or the like. Each rib is formed of a pair of side arms and an interconnecting central portion which are arranged in a generally U-shaped configuration to fit around the vehicle tire. The side arms are formed of a bow-like spring arrangement which is flexible in response to application of forces at the ends thereof in a radially inward direction relative to the tire so that the side arm ends are positioned to displace the rigid interconnecting elements beyond the contour of the tire. Interconnecting linkages or cables are passed through the rib ends and are tightened in a circumferential direction so as to apply the radially inward force to the rib side arms. Reinforcing steel wires can be included throughout the length of each rib and reinforcing crossbars can be embedded within the central portion of each rib so as to facilitate accommodation of tires of varying tread widths.

Abstract: Anti-skid means for front or rear vehicle tires comprising shoes of pliant material around the tire held in place by lengthwise chains terminating in hooks lying against the outer and inner side walls, which shoes are one-piece with a ribbed and textured central portion for the tread and sides and means for removably holding the shoes and associated shackles in place during rotation of the wheel of the vehicle. The parts are specially designed to give good traction and comfortable riding qualities on icy and snowy surfaces with reduced wear.

Abstract: A non-skid device in which the road engaging part is a long flexible member formed of one or more twisted steel wire cables embedded in a thick coating of rubber and in which said road engaging part, when on a tire, extends back and forth zigzag fashion diagonally across the tread of the tire and is secured in place on the tire by two belt type anchor members which are positioned respectively at opposite sides of the tire. The anchor member at the inner side of the tire has readily detachable parts which, when detached, allow the non-skid member to be applied to a tire from the outer side of the wheel without using a jack to lift the wheel. Means is provided for tightening the non-skid device on a tire after it is applied thereto. The flexible zigzag road engaging parts have good non-skid qualities and have longer life than metal cross chains when used on bare pavements.

Abstract: An annular meshwork to cover the tread and part of the sidewalls of a tire includes a plurality of flexible, nonstretchable strands extending around the tire, each strand being connected to adjacent strands at spaced apart points to form an annular meshwork or network to improve traction and steering. The sides of the meshwork are defined by end rings, at least one of which is extensible, e.g., elastic, to allow mounting on the tire. The strands adjacent the end rings are fixedly attached to the end rings. The meshes are formed by the strands with a significantly longer dimension in the circular direction of the annular meshwork than in the transverse direction. The connections can be made using clamping devices of which specific embodiments are disclosed. The clamping devices can be provided with a protective layer on the tread-facing (inner) side. The outer side can be provided with projections in the nature of short spikes to enhance traction.