JPH0376245B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to anti-skid devices, in particular anti-skid devices for ice and snowmobiles having wheels with pneumatic tires.

[Conventional technology]

Like winter tires, snow chains are used during the winter, especially when driving a vehicle on snow-covered uphill and downhill slopes. Snow on car tires
Installing chains is often a hassle, and it is necessary to drive with snow chains to avoid damaging the road surface; in other words, driving on a snow- or ice-covered road followed by a snow-covered road is difficult. Chain must be removed. Furthermore, when driving on dry roads, snow chains are subject to high wear and cannot reach high speeds.

[Problem that the invention seeks to solve]

The problem of the present invention is that it is not only easy to attach and detach and can be applied to tire compression or squeezing movements, but also has the effect of a snow chain, so that it can improve the running characteristics of a vehicle on snow-covered roads and when climbing or descending. It is an object of the present invention to provide an anti-slip device of the type described above, which improves the effectiveness of the anti-slip device on a snowy road surface having a slope. Moreover, this anti-skid device can be used on many types of wheel discs or rims without any need for replacement or refitting.

[Means and actions for solving problems]

According to the invention, this problem is achieved by: a circular support disc; means for releasably attaching the support disc to the wheel rim; and means extending radially from the support disc to which the support disc is attached. a plurality of support arms extending to and connected to the running surface of a tire mounted on a wheel rim; an outer chain attached to each free end of the radial support arms; and one end each attached to the outer chain. and a plurality of chain portions having other ends attached to one of the support arms, wherein the outer chain is free of the support arms except between a pair of adjacent support arms. The outer chain extends around the entire outer circumference formed by the end portions, and between the pair of adjacent support arms, the outer chain extends around the outer circumference of the support disk therebetween and the support arms of the pair respectively. an endless chain disposed along the inner edge of the wheel to form a U-shaped profile, the U-shaped profile of the outer chain allowing the tire to be attached to the wheel rim without rotating the wheel. an anti-skid device, in particular for ice and snowmobiles having wheels with pneumatic tires, comprising: said snow chain grid forming a mounting opening through which the anti-skid device can be mounted in the fully operational position; Solved by anti-slip device.

Further, the anti-skid device is a snow chain grid including an outer chain having continuous links and attached to the free end of the radially extending support arm, the snow chain grid further comprising a respective outer chain. including a plurality of chain portions having one end attached and the other end attached to one of the support arms, the outer chain having an interrupted configuration at a first end and a second end; The first end of the outer chain is fixed to one of the pair of adjacent support arms, and the link portion of the outer chain fixed to the other of the pair of adjacent support arms is fixed to the first end of the outer chain. The length of the link to the second end of the outer chain is shorter than the length of the link to the end, and a through ring located between the pair of adjacent support arms is attached to the first end of the outer chain. a chain extension between the second end of the outer chain and a link portion attached to the other of the adjacent pair of support arms passes through the through ring; a length sufficient to form a U-shaped profile along the inner edges of the pair of support arms and the outer edge of the support disc between the pair of support arms; the snow chain grid, the contour of which forms a mounting opening that allows the anti-skid device to be installed in the fully operational position without rotating the wheel;

and a snow chain grid including an outer chain attached to a free end of the radially extending support arm, the snow chain grid further comprising one end and one of the support arms each attached to the outer chain. the outer chain includes a plurality of chain portions having an outer chain first end fixed to one of a pair of adjacent support arms; a second end of the outer chain fixed to the other and extending over the entire circumference formed by the free ends of the support arms except between the adjacent pair of support arms; and includes first and second clip members to which an upper portion on the free end side and a lower portion on the base side of each of the inner green portions of the pair of adjacent support arms are respectively fixed. the snow chain grid; and first and second end links each slidably retained on one of the clip members and having a length approximately equal to the spacing between the lower portions of the clip members. a chain part, said chain part forming a U-shaped profile with a clip part to define a mounting opening in order to mount said anti-skid device in a fully operational position on a wheel without moving the wheel; said chain portion is located in the base region of said pair of adjacent support arms, and rotation of the wheel causes said chain portion to be automatically moved to the free end region of said pair of adjacent support arms. It consists of and.

An anti-slip device constructed in this way can be easily attached and removed only if the fixed disk remains on the wheel disk or rim and the support disk has a support arm holding the chain grid. This is because it only needs to be fixed to a fixing disk using a locking device designed as such. In this way, an anti-slip device with snow chain characteristics can be installed in a much shorter time than the known snow chains, which are difficult to install and remove, since the wheels are equipped with support discs with chain grids. This is because the support arm with the chain grid engages with the tire running surface simply by mounting it on the fixed disc which is locked in place. Therefore, when the support arm is introduced onto the tire running surface, the chain grid of the anti-skid device is
There is no need to manually place the grid on the tire shoulder.
If the support disc with the support arm and chain grid is attached to the stationary disc, the chain grid will be placed around the tire running surface of the vehicle. With this anti-skid device, it is therefore not necessary to manually pull the chain grid at the tire shoulder, as is the case with known snow chains. Moreover, there is no need to tension the anti-skid chain or chain grid, since the snow chain always assumes the correct position on the tire after the anti-skid device has been installed. Due to the support arms of the anti-skid device, the chain grid will be held to some extent in suspension above the tire running surface, allowing the snow chain to be spread over the tire and removed from the snow without applying the necessary force. - Prevents the snow chain from tightly engaging the tire running surface, as would be the case if there was a gap between the chain and the tire. The chain grid is always in an expanded or tensioned state, since the restoring ability of the plastic support arms allows the chain grid to be maintained in an ideal tensioned state. Furthermore, the anti-skid device can also be used with wide tires, in which case the support arms of the anti-skid device are adapted to the specific tire used, such that the support arms with chain grids overlap the tire running surface. It is necessary to have a corresponding length. Furthermore, when the running speed is increased, the chain lifts up slightly and is pulled against the tire running surface by the weight of the lateral chain portions (side chains), thereby tensioning the chain grid.

Furthermore, the length of the support arm does not have to be dimensioned so that the support arm and chain grid must also engage the rear side of the tire.
Anti-skid devices can also be used in tires where chains cannot be installed or used due to insufficient clearance between the sides of the tire and parts of the vehicle.

The installation of the anti-slip device is easy, since it has an opening between the two support arms for inserting or introducing this anti-slip device into the wheel, and after the anti-slip device has been installed. , this wheel engagement opening can be obstructed by various shapes of the chain.

Since the chain grid is held by the support arm of the anti-skid device at a limited distance to the tire running surface, there is no risk of tearing, damaging or crushing the chain grid. The risk of chain failure occurs whenever the chain is held too tightly to the car's tires. Furthermore, even if the wheel cases are covered with ice, anti-slip devices can be installed in the upper area of the tire running surface and at the lower edge of the car's mud flaps or fenders.
The car simply needs a gap that always exists. The chain grid is held on the vehicle's tire running surface by support arms so that it does not cause damage to the wheel cover.

A practical snow chain includes a chain fixed to the free end of a support arm and a chain section, the chain section being fixed to the chain at one end and fixed to the support arm at the other end. snow chain-like chain.
Grid is obtained.

According to another embodiment of the invention, the chain grid of the snow chain is guided into the support disc in the area between the two support arms forming the wheel engagement opening, so that the support arm and the support It is held in the connection area of the disc and the wheel engagement opening between the two support arms is closed by a chain part.

According to another embodiment of this device with a wheel engagement opening, the chain of the snow chain fixed to the free end of the support arm has two supports for forming this wheel engagement opening. The chain is configured to be interrupted in the area between the arms, with one end of the chain fixed to one support arm restraining the wheel engagement opening, and the chain end fixed to the other support arm. the extended chain section has a length greater than the length of the two support arms and the distance between the two support arms, and the wheel is A fixing device, such as a hook or the like, for hooking the free end of the chain extension is provided on the adjacent support disc of one of the two support arms constraining the engagement opening. .

According to another embodiment of the invention, the chain of the snow chain is constructed in such a way that it is interrupted in the vicinity of two support arms laterally restraining the wheel engagement opening, the free end of which Two support arms, which are fixed to the free ends of the support arms by means and which constrain the wheel engagement openings, are supported at both ends in the upper and lower regions of the support arms and which face the support disk from the upper free ends. holding on the longitudinal edge of the corresponding arm a respective clip configured to be conically inclined towards the end thereof, the clip being provided with a ring-shaped part in the upper region; , the chain is held movably in the two clips in the longitudinal direction of the support arms, the end chain links passing through the two clips along the two support arms, and the chain extends between the two support arms in the lower region. It has a length approximately equivalent to .

The present invention provides a snow support arm having a length greater than the periphery formed by the free end of the support arm.
a chain end in which the outer end of the chain is fixed by its end to the free end of one of two support arms constraining the wheel engagement opening, the support arm having a ring-shaped through fitting; the other extended end of the chain passes through this fitting,
Wheel engagement of the anti-slip device in such a way that near the end of the extension chain section it can be fixed to the support disc by means of fastening devices such as tenterhooks, bending levers, etc., themselves constructed in a known manner. It forms an opening.

In order to tension the outer chain, the free end of the extension chain part of the outer chain is guided in a circular line by means of guides that are fixed to or formed on the support disc, and the free end It is connected to a spring element, such as a coil spring, rubber band, etc., which is fixed to the support disc. Due to the use of plastic, the support arm of the anti-slip device has a certain elasticity and a corresponding restoring force, so that the outer chain can be pulled and tensioned, and therefore the outer chain After fixing with its free end to the support disc, the chain grid of the anti-skid device is placed under tension on or by the support arm against the tire running surface, which is due to the existing restoring forces. This is because the support arm pulls on the chain in an attempt to return to its original position from the laterally moved position, and the action of this support arm ensures that the snow chain of the anti-skid device is always held firmly on the tire. It is configured to be fixed with.

If the anti-slip device is not used, the support arm is fixed to the support disc in such a way that it can bend or pivot in the direction of the support disc in order to move the support arm into a position in which it engages the support disc. or configured. Therefore, the support arm is placed on the support arm surface in a downwardly curved or swiveled state, so that, for example, two anti-slip devices for tires can be mounted on the support arm surface.
It can be stored in a very small space in the luggage compartment or trunk of your car. Furthermore, in the case of several anti-slip devices with fixed support arms,
They are detachable from each other and can be stored in a minimum space, ie in the trunk.

Another preferred embodiment of the present invention relates to the structure of a fixing device for an anti-slip device, in which a rim screw, a
A fixed disk having a plurality of openings for wheel studs, etc. is provided, holding in the center a circular boss having a smaller diameter than the fixed disk, and extending from the fixed disk at a distance adjacent to its upper end and around its periphery. A support disk is provided with a plurality of bead-shaped shoulders at the portion thereof, and has a support arm surrounding the boss by forming a sliding surface/guiding surface that slopes conically in the circumferential direction of the boss from the inlet portion under the shoulder portion. The retaining and supporting disc is fixed by a retaining ring mounted on the boss, which retains the retaining ring by a bayonet lock with a conically inclined section extending to the inlet while still on the boss. It has a locking web that can be inserted into the sliding surface and guide surface on which the movement is to be performed,
In addition, at the locking position of the retaining ring of the fixed disk, it is supported by a stopper so as to engage with the recess on the outer periphery of the boss to prevent unnecessary release of the lock, and is released from the locking position using the lock release key. A support disk having at least one spring-like catch on its inner wall which can be moved into position and having a support arm is arranged spaced apart from the boss of the stationary disk for eccentric rotational movement.

With a fastening device constructed in this way, the anti-slip device consisting of a support disc with a plurality of support arms holding the snow chain can be installed simply and with little force. The fixing device consisting of a fixing disk and a retaining ring is mounted on the wheel rim, so that in order to install the support disk together with the support arm, the retaining ring can only be removed from the fixing disk fixed to the rim. The support disk can then be mounted on the boss of the stationary disk. The attached retaining ring then locks the support disk to the fixed disk such that it is held on the boss of the fixed disk in the gap between the fixed disk and the retaining ring. Due to the plug-in locking between the fixed disc and the retaining ring,
The anti-slip device comprising the support disc and the support arm is held securely. The release of the locking action is effected using a release key, which has two bends, by means of which the leaf-spring catch is released from its locked position. The support disc with boss and the attached retaining ring always remain on the wheel,
On the other hand, the actual anti-slip device, i.e. the support disc, together with the support arm holding the snow chain,
Can be installed if required.

It is particularly advantageous to adopt an arrangement in which the support disc with the support arm holding the snow chain is arranged in a gap on the boss of the stationary disc. Due to the fact that the support disk is held in a relatively large gap on the boss of the fixed disk, the support disk can perform eccentric movements, which is due to the fact that the support disk with support arms is held in a relatively large gap on the boss of the fixed disk, which is caused by the support disk with the support arm This is because it must not be fixed or rigidly attached to the rim, since the compression movement of the tire must occur during operation. Since the support disk is held in the gap above the boss of the stationary disk, the support disk can perform a rolling or rocking movement adapted to the compression movement of the tire. This movement ensures that the support arm of the anti-skid device always engages the tire sidewall during operation and assumes a position overlapping the tire running surface.

According to another preferred embodiment of the invention, the anti-slip device comprises a fixing disc connected to the wheel disc or rim, and in order to fix the support disc and the fixing disc, a support disc is provided. A mounting support is provided which is lockable to the plate and is permanently connected to the fixed disk to the wheel disk or rim to form part of the wheel. In this example, the fixing disc and retaining ring remain on the wheel rim, so to install the support disc and support arm, it is only necessary to remove the retaining ring from the retaining disc connected to the wheel rim. . The support disk is then mounted on the boss of the fixed disk. Then, by attaching the retaining ring, the support disk is held in the gap between the fixed disk on the fixed disk boss and the retaining ring, and is locked to the fixed disk.

Furthermore, the anti-slip device according to the invention can be used without much technical effort on various vehicles whose wheel discs or rims have different bolt circles and bolt pitches of the rim threads or wheel studs. There is no need to have a large number of different structural anti-slip devices for each wheel disc or rim. This means that the fixing disk supports an adapter disk having a plurality of radially oriented elongated holes with identical and/or non-identical pitches or pitches connected to the boss of the fixing disk by a threaded joint. This is achieved by holding it on the side away from the board.

The advantage of using an adapter disk for the fixed disk with bosses is that only one fixed disk needs to be designed. The adapter disc is
The adapter disk has an internally threaded hole that corresponds to the boss hole of the fixed disk, and a plurality of elongated holes arranged radially with the same or several pitches on the adapter disk. The fixing disc can be fixed to the wheel disc or rim using an adapter disc, since a number of slotted slots arranged in different ways can be used to fix the fixing disc to the wheel disc or rim. This is because they are adapted to internally threaded holes for rim threads or wheel studs, respectively. Therefore, the adapter disc can be adapted to a wheel disc or rim by forming elongated holes with the same or multiple bits and internally threaded holes for receiving rim screws or wheel studs arranged in various relation. Therefore, it is not necessary to prepare a large number of fixing disks for such an anti-slip device. The adapter disk is simply screwed to the proper pitch or spacing of the rim screws, wheel studs, or particular wheel screws with varying pitch diameters in a self-centering manner. And, since the fixing disc with the boss is fixed to the adapter disc by screw connection, the anti-slip device can be used for each car with various bolt circles and bolt pitches without having to prepare a fixing device for each. .

〔Example〕

As shown in FIGS. 11 and 12, the anti-slip device 10 includes a shaft 41 running parallel to the wheel disc support shaft.
It consists of a round support arm 20 having a central opening in which a plurality of radial support arms 40 are fixed, spaced equidistantly around the center and rotatable over a small range. However, the support arm 40 can also be fixed to the support disc 20. Support arm 4
0 rotates over a small range, so it is possible to install anti-slip devices when the car is stationary.
When installing the anti-skid device, even if the support arms are placed transversely to the surface that supports the tire running surface on the foundation, such as a road, if the wheel is rotated first, all the support arms will be aligned evenly. It will be in a spaced position.

The support arm is made of metal or other suitable material, but may also be made of plastic. A support arm 40 is fixed to the support disk 20,
Made of plastic with a certain rebound resilience, in particular a restoring force, this support arm located close to the wheel support surface is bent laterally so that it rests on the tire close to the tire running surface. ,
As a result, when starting the car, the support arms assume the correct radial position caused by the existing recovery ability of the plastic used to make them.

This anti-slip device is fixed to a wheel that is provided with a tire 13 and that also constitutes a rim. The wheels 11 are equipped with braking components (not shown). The running surface area of the tire 13 is designated by 14 and its outer surface by 15 (see FIG. 11).

According to FIGS. 1 and 2, support arm 40
has an outer chain 201 fixed to the free end 40a of the support arm 40, and one end of which is connected to the chain 201.
Since it holds a snow chain 200 constituted by a chain grid consisting of chain parts 202 and 203 whose other end is fixed to the support arm 40, for example, a ladder chain-like chain Grid is obtained (first
(see figure). However, it is also possible to arrange the chain sections 202, 203 in such a way that a chain grid corresponding to a zigzag chain, a crisscross chain or a zigzag chain wound with an asymmetrical crisscross chain is obtained. That is, it is possible to use chain grids with various configurations.

When the chain 201 is configured in an endless manner,
The support arms 40 of the anti-skid device are all connected by a chain 201, and the area between the two support arms 40 which serves as an opening for introducing the tire when installing the anti-skid device is also connected.
This wheel engagement opening is designated at 210 in FIG. Due to this structure, in the chain grid of the snow chain 200 in the anti-slip device, the two support arms surrounding the wheel engaging opening 210 are interconnected in the same way as the support arms connected by each part of the chain 201. ing. This chain part is designated by the number 2 in Fig. 2.
01a, which connects the two support arms 40 surrounding the wheel engagement opening 210.

The chain 201 can also be configured in an endless manner in other ways, in which case according to the embodiment of FIG.
The chain section _201a on the opposite longitudinal edges 40a of 0 is guided close to the two support arms surrounding the wheel engaging opening 210 and close to the support disc 20 as shown in FIG. . In the connecting region of the two support arms 40 and the support disk 20, the chain section 201a _a of the chain 201 is fixed by a chain grid 210a _b to the base region 40aa of the two support arms. When the anti-skid device is installed, the chain 201 section a _a of the outer chain 201 of the anti-skid snow chain 200 remains in the position shown in FIG.

As a result of the chain 201 being guided by its chain section 201a, a wheel engaging opening 210 is obtained, so that the anti-skid device can be installed while the vehicle is stationary, without any need to move the vehicle. This is due to the chain part 20 near the wheel base.
1a _a cannot be brought onto the running surface of the tire in any way, but this is not necessary since the support arms 40 are oriented radially when the car is started, fully tensioning the chain grid, and the This is because after the anti-slip device is installed, the pre-formed wheel engaging opening 210 is not blocked by the chain portion 201a as shown in FIG.

According to FIG. 3, the outer chain 201 of the snow chain 200, which is fixed to the free end 40a of the support arms 40, is inserted in the area between the two support arms 40 in order to form the wheel engagement opening 210. Interruptingly, one end 201b of the chain 201 is fixed to one of the support arms 40 surrounding the wheel engagement opening 210, and the end 201c of the chain 201 fixed to the other support arm 40 is the free end of the support arm 40. It is fixed to the section 40a by a chain ring, which is constructed as a lengthened or extended chain. The length of this extended chain portion 211 is greater than the length of the two support arms 40 and the distance between them. Furthermore, this extended chain portion 21
1 passes through a through ring 212 at the end 201b of the chain 201. on the support disk 20,
Adjacent to one of the two support arms 40 surrounding the wheel engagement opening 210, a fastening device 2155 is provided, which itself is constructed in a known manner, for example as a hook-shaped bent lever, and which connects the chain 201. is used to hook the free end 211a of the extended chain portion 211 of. While installing the wheel anti-slip device, the chain section 21
1 takes the position indicated by the symbol A in Fig. 3, so
Opening 210 becomes configured for mounting and engagement of a tire, not shown. When the anti-slip device is installed and the support arm 40 overlaps its chain grid and tire running surface, the chain portion 211, ie, the chain 201, is tensioned so that the chain portion 211 assumes position B in FIG.

If the anti-slip device has a closure chain 201, the device has a support arm 40 on the support disc 20.
When installing the tire, the support arm with the chain grid is installed in such a way that it engages the upper area of the tire. At this time, the vehicle is moved by half a wheel revolution, and the remaining cleat part, including the support arm and chain grid, is engaged with the tire and then locked. However, if the anti-skid device has the structure of the wheel engaging opening according to FIG. And the almost U-shaped wheel engagement opening 210
This is because they fit together.

The structure of the wheel engaging opening 210 is also possible in the embodiment shown in FIG.
It is arranged so that it is interrupted near two support arms 40 that laterally surround it. The free ends 201b, 201c of the chain 201 are fixed to the free ends 40a 40c of the two support arms 40. The two support arms laterally surrounding the wheel engaging opening 210 have clips 220 on their opposing longitudinal edges 40b, the ends 220a and 220b being fixed to the upper and lower parts 40d and 40e of the support arm 40, respectively. Each of them is equipped with the following.
These two clips 220 have exactly the same shape. The arrangement and structure of the two clips 220 on the support arm 40 are such that the clips are conically inclined from the upper free end 40a of the support arm 40 to the base _40aa of the support arm facing the support disk 20; The structure is as shown in Figure 4. In the upper region, each clip 220 has a ring-shaped portion 220c, with the portions 220c of the two clips 220 facing each other. The chain 225 is movably held by two clips 220 in the longitudinal direction of the support arm. For this reason, the clip 220 is attached to the base 4.
The ends of the chain 225 having a length approximately corresponding to the distance between the two support arms 40 at 0a _a are threaded through chain links 225a, 225b.

To open the opening 210 in which the tire engages, the chain 225 is moved along the two clips 220 towards the support disc 20 until it reaches rest A. In this way, the wheel engagement openings 210 are opened, so that in this embodiment the anti-skid device can be installed on the tire without having to move the vehicle to install the device. When attaching the anti-skid device to a car tire, the chain 225 is moved from position A to position B, and the chain 225 is held by the ring-shaped portions 220c of the two clips 220. However, it is not necessary to manually move the chain 225 to the closed position B. Even if the chain 225 remains in position A after installing the anti-slip device, the chain 225 automatically moves over the clip 220 when the car is started, so that the interruption in the outer chain 201 is not interrupted by the chain 225. It is closed near the wheel engagement opening 210.

If the chain 201 is configured to be interrupted to close the wheel engagement opening 210, this chain is closed by the chain section 211 after installing the anti-slip device according to the embodiment of FIG. Therefore, the chain part 211, that is, the chain 20
1 can be made tense automatically. To this end, according to FIG. 3, the chain 201 has a length that is greater than the circumference formed by the free end 40a of the support arm 40, and the chain 201 has two walls surrounding the wheel engagement opening 210. The support arm 40 is attached by its end 201b to one free end 40a of the support arm, while the support arm 40 holding the chain end 201b has a ring-shaped threaded attachment through the other end of the chain 201, namely end 211. It has a tool 212. Extension chain section 21 of chain 201
The end 211a of 1 is fixed to the support disk 20 by means of a fixing device 215a, constructed in a manner known per se, which can be constructed as a tenter hook, a bending lever stop, etc. The chain 201 is fixed regardless of the fact that the chain part 211 is fixed to the support disk 20.
It is possible to further tension the chain portion 211. In this case, the fastening device 215a is constructed as a tightening device, so that it also acts in addition to the correspondingly constructed tensioning element.

In order to tension the chain 201 or the chain section 211, the chain end 211a of the extended chain section 211 of the chain 201 is fitted with an elastic or spring tensioning device in the form of a spring element 240, which can be configured as a coil spring, a rubber band, etc. Connected. This spring element 240 is guided by a guide 241 which is arranged in a circular line and is fixed to or formed on the support disk 20 and is guided by a guide 241 with its free end 240a into the support disk 20 with reference numeral 2.
44. Spring element 2
The guide 241 for receiving the spring element 40 is constructed as an arcuate member with a receiving slot or groove for the spring element to prevent the spring element 240 from slipping laterally from the guide 241 (see FIG. 5). . The fastening device 215a in this case merely serves to additionally fasten the chain 201 or its chain member 211 to the support disc 20. When the chain 201 with the chain section 211 is manually tensioned without the use of the spring element 240, the locking device 215a maintains the chain 201 and its chain section 211 in a predetermined tensioned position. Fixing device 2 for chain 201
15a may be a comb-like clip on the support disc 20.

The outer chain 201 of the snow chain 200, which is fixed to the support arm 40, is fixed to the free end 40a of this support arm. For this,
Each support arm has an annular groove 140 at its free end 40a for receiving and retaining the annular link of the chain 201 of the snow chain 200 (see FIG. 6). In the embodiment illustrated in FIG.
0 chain 201 is provided with a recess 141 used to receive and retain the annular link of the chain 201. However, Chain 201 of Snow Chain 200
The support arm 40 for receiving and holding the support arm 40 can also be provided with fixing devices of various constructions. The support arm 40 is removably fixed to the support disk 20.

In order to facilitate the storage of the anti-slip device consisting of the support disc 20 with support arms 40 and the chain grid of the snow chain 200 in the smallest possible place, for example in the luggage compartment or trunk of a car, each The support arm is fixed to the support disc 20 such that it can bend or rotate in the direction of the support disc.

According to the embodiment of FIG.
0, the support arm portion 262 has a band hinge-like structure, and the support arm 40
It can be applied to the support disk 20 by bending it in the direction of the arrow B from the operating position A in the figure. The position of this support arm 40 is indicated at B. In order to hold the bent support arm 40 in this way, a device, not shown, is provided, which makes it possible to hold the bent support arm 40 in position B. This fixing device may be, for example, a rubber band. Since the support arm 40 can be curved, it is possible to accommodate the anti-slip device in a space-saving manner.

However, each support arm 40 of the support disk 20 is held in the support disk in an insertable manner, and can also be held rotatably and pivotably, so that the support arm 40 is inserted into the support disk 20. It can be attached with a clasp (see Figure 9).

In the embodiment shown in FIG. 10, a pre-curved support arm 40 articulates with the support disc 20 at 268, allowing the support arm 40 to pivot from an actuated position A to a position B in which it engages the support disc 20. combined. In the case of this embodiment, it is also possible to accommodate the anti-skid device in a space-saving manner in the trunk, since all support arms 40 are kept in the swiveled position. This is because only the height is restricted. In order to be able to hold the support arms 40 in the working position A, a locking device (not shown) is provided on the support disk 20 of each support arm 40, which may for example constitute a locking bolt or the like. , the support arm 40 can maintain the non-swiveled position A.

Each support arm 40 is fixed to the support disc 20 by a bolt-like or rivet-like connection device, and can also be removably fixed to the support disc 20, so that a worn arm 40 can be replaced with a new one. Can be replaced. In Figure 12,
Although the support disk 20 is partially shown with eight support arms 40, the number of arms can be selected arbitrarily. The number of support arms of the support disk 20 also depends on the size of the anti-skid device and the tire to which it is applied. The support arms 40 all have the same angular spacing. Each support arm 40 holding the chain grid or snow chain 200 is made of a resilient material, such as a suitable plastic or spring steel, so that the free end of each support arm 40 holds the tire 1.
It can be bent downward due to elasticity near the running surface 14 of No. 3. The support arm 40 is preformed in such a way that the free end of the support arm engages the running surface 14 after the anti-skid device 10 has been mounted on the wheel (see FIG. 1).

The support arm 40 is provided with a gripping material on the outside at its free end, so that the gripping of the anti-slip device is improved by the chain grid of the snow chain 200. The gripping object is configured as a spike or is provided with a spike.

The fixing device of the anti-slip device 10 to the wheel rim consists of a boss-shaped fixing disk 50 and a retaining ring 150 (see FIGS. 13 and 17). According to another embodiment, the stationary disk 50 is an integral part of the wheel. In this case, the wheels and the stationary disk 50 consist of roll-formed or molded parts.

Securing device 50 includes a plurality of openings 51 used for passing rim screws, wheel studs, etc., such as those shown at 18 in FIG.
The rim screw or wheel stud 18 for fixing the stationary disc 50 is provided with an internally threaded hole for receiving a fixing screw 85 by which the stationary disc 50 can be secured to the wheel rim 11.

The circular stationary disk 50 has in the center a boss 52 of circular cross-section which is designed as a fitting and is designed as a cylindrical body or cylindrical profile and forms an integral part with the stationary disk 50. boss 5
2 is smaller than the diameter of the fixed disk 50.

On its outer periphery, adjacent to the edge 53, a boss 22 is provided.
has a plurality of bead-shaped shoulders at equal intervals. In the embodiment of FIG. 13, the fixed disk 50
There are four bead-shaped shoulders 55 projecting radially from the outer periphery of the boss 52.

Below each bead-shaped shoulder 55 is a sliding surface/guiding surface 6.
0 (FIG. 15) is formed. This sliding surface/guiding surface 60 is configured as a recess, and the surface 60
Since the inlet portion 56 is provided with an inlet portion 56 that slopes conically from the end region 56a to the end region 56a, the inlet portion 56
Larger than 6a. Therefore, the recess forming the sliding surface/guiding surface 60 has a wedge-shaped form, and the fixed disk 50
It is locked by a circular projecting surface 57 in the area adjacent to. The end region 56a of the slide and guide surface 60 also has a demarcation line in the form of a stop, although this is not necessary.

A circular protruding surface 5 formed on the outer peripheral surface of the boss 52
7 also constitutes the upper limit surface of the fixed disk 20 mounted on the boss 52 of the fixed disk 50 (first
(See Figure 3). In the vicinity of the opening 51, each opening 5
1 penetrates inside the boss 52 as a local hole, the circular protruding surface 57 is interrupted (first
(See Figure 3).

All the slide and guide surfaces 60 below the bead-shaped shoulders 55 have their entry points 56 respectively connected to said end regions 56.
It is formed and arranged so as to face a. Each bead-like shoulder 55 advantageously has a flat portion 55a in its upper region which provides for the attachment of a retaining ring 150. Boss 52 of fixed disc 50
serves to receive the support disc 20 which receives the retaining ring 150 with the support arm 40 of the anti-slip device 10.

The retaining ring 150 protects the support disk 20 of the anti-slip device 10 mounted on the fixed disk 50. The outer diameter of the retaining ring 150 is slightly smaller than or the same as the outer diameter of the fixed disk 50, and the inner peripheral surface 150a thereof is provided with a plurality of locking webs 155, the number of webs being equal to the outer diameter of the fixed disk 50. The number of bead-shaped shoulders 55 in the boss 52 or the sliding surface and guide surface 6
Matches the number of 0s. Since this locking web 155 is configured to be introduced into the sliding surface/guiding surface 60, it locks the retaining ring 150 and the boss 52 or the fixed disk 50 in an insertion type (see FIG. 17).

A wedge-shaped fixed disk 5 is attached to the locking web 155.
The retaining ring 150 mounted on the retaining ring 150 allows the conically inclined end of each retaining web 155 to form a sliding surface and guide surface between the bead-shaped shoulder 55 and the circular protruding surface 57. When the retaining ring 150 is rotated about its central axis in the direction of arrow X, the retaining web 155 is inserted onto the surface 60 and is inserted to close the bayonet. A locking effect of the formula can be obtained (see FIGS. 16 and 17).

The retaining ring 150 is installed in such a manner that the retaining web 155 of the retaining ring 150 is introduced onto the sliding surface/guiding surface 60.
The web 155 has a length corresponding to the distance between the two bead-shaped shoulders 55 of the fixed disk 50 so that it can be mounted on the boss 52 of the fixed disk 50. Therefore, regarding the mounting position of the retaining ring 150, the retaining ring 150 is placed on the circular protruding surface 57 after the retaining web 155 passes between the two bead-shaped shoulders 55, and the retaining web 155 is placed on the circular protruding surface 57.
It is designed to be introduced into a recess forming a .

In order to prevent the retaining ring 150 from automatically detaching from the boss 52 or the fixing disk 50, the retaining ring 150 is provided with another locking device, which is disposed in a recess 156 in the inner wall surface 150a of the retaining ring 150. It is designed as a leaf-like catch 160 in the form of a spring-backed tongue. The arrangement and structure of this plate spring-like retaining ring 160 are such that the retaining ring 150 is connected to the boss 50 of the fixed disc 50.
When it is mounted on the top but is not yet in the locked position,
The leaf spring-like retaining metal 160 is attached to the inner circumferential surface 1 of the retaining ring 150.
It is adapted to be pushed back into the recess 156 of 50a by the bead-shaped shoulder 55. When the retaining ring 150 is rotated and locked, the leaf spring-like retainer 160 is placed near the recess 152 formed around the boss 52. In this position, the leaf-spring catch 160 tends to automatically spring back out of the recess 156 in the direction of the arrow A locking device is constructed in which the free end rests on a stop 153 rebounding a recess 152 in the boss 52. As a result, the free end of the leaf spring-like retainer 160 that engages with the retainer 153 in this recess acts to lift up from the boss 52, causing the retainer ring to move against the direction of rotation for locking.
I'm trying not to turn 50.

The number of leaf spring-like retainers 160 provided on the inner circumferential surface 150a of the retaining ring 150 can be selected. In the embodiment of FIG. 17, the retaining ring 150
There are two leaf spring-like clasps 160 disposed at equal angles from the inner circumferential surface 150a. Fixed disk 50
The number of recesses 152 formed around the boss 52 corresponds to the number of leaf spring-like clasps 160. When manufacturing the retaining ring 150, the retaining ring 160 is formed at the same time. The retaining ring 150, in the case of a tongue-like design as applied to the leaf-spring catch 160, is made of a plastic with spring-resilient properties.

Instead of the leaf-spring catch 160, it is also possible to use locking devices with various constructions.
For example, a radially movable or spring-actuated bolt that engages a corresponding recess on the circumference of the boss 52 of the fixed disc 50 could be used, in which case the retaining ring 150 It must be noted that if this locking bolt has to be pulled back to its initial position so that it can be removed from the plate 50, it will be unlocked.

To be able to remove the retaining ring 150 from the fixed disc 50, a leaf spring-like retainer 160 is used.
The recess 156 on the inner peripheral surface 150a of the retaining ring 150
It is necessary to move from the locked position to the initial position. For this purpose, a lock release key 70 shown in FIGS. 18 and 19 is provided, and has a handle-like handle 71, which stands substantially upright with respect to the handle-like handle 71. It supports at its free ends two spaced apart pressure tongues 72, 73 which are arranged in such a manner. These two pressure tongue pieces 7
The distance between 2 and 73 is the corresponding leaf spring-like clasp 16.
This corresponds to a spacing of 0, so that the pressure tongues 72, 73 can be inserted into the two recesses 152 of the boss 52. Therefore, according to FIG. 17, the retaining ring 1
50 indicates two pressure tongues 72, 7 of the unlocking key 70 corresponding to the two recesses 152 of the boss 52.
It has a recessed part 75 into which a 3.3 can be introduced.

The pressure tongues 72 and 73 of the unlocking key 70 are introduced into the recess 75, and the key 70 moves in the direction of the arrow X2.
When rotated in the direction (see Fig. 17), the boss 5
The two clasps 1 placed in the recesses 152 of 2
60 is pushed out from this recess, and the retaining ring 150
into the recess 156 of the inner circumferential surface 150a.
The leaf spring-like catch 160 has two pressure tongues 72,
In the end region which forms the path of movement of 73, the stop 76 is opened and the two tongues 72, 73 are inserted so as to fit there. When the pressure tongues 72, 73 engage with the stopper 76 and the lock release key 70 is further rotated in the direction of arrow X2, the tongues 72, 7
3 moves the retaining ring 150 and further moves the retaining web 15
5 rotates, the locking web 155 between the bead-shaped shoulders 55 and the sliding surface/guiding surface 6 of the fixed disk 50 are rotated.
0, so the retaining ring 150 can be removed from the boss 52 at this position.

Attachment of the retaining ring 150 to the boss 52 is also carried out using the unlocking key 70, when the pressure tongues 72, 73 of the key 70 are introduced into the recess 75 and the key 70 is turned in the direction of the arrow X ( (See FIG. 17), the tongues 72 and 73 together move the retaining ring 150 so that the locking web 155 is placed on the sliding surface/guiding surface 60, resulting in a bayonet type locking effect.
In the fixing region of the leaf-spring catch 160, the recess 75 has a stop 78 for moving the retaining ring 150 by means of the pressure tongues 72, 73 of the release key 70 (see FIG. 17). .

As shown in FIG. 11, on the wall 40a remote from the boss 52, the fixing disk 50 is provided with a spacer ring 80 in the vicinity of the rim screw or wheel stud opening 51, which ring is interchangeable. configured as a gender adapter. This allows the fixing device to be adapted to the size of the tire by means of spacer rings 80 of various sizes.

A support disk 20 having a support arm 40 and a chain of snow chains 200 fixed thereto.
To attach the anti-slip device 10 using a grid to the rim or wheel 11 of a car using a fixing device consisting of a fixing disk 50 of a retaining ring 150, the fixing disk 50 can be attached using a rim screw or a wheel stud 18. After fixing to the rim 11, the anti-slip device 10
This is done by mounting the supporting disk on the boss 52 of the fixed disk 50. At this time, the retaining ring 50 is installed so that its retaining web 155 is located in the gap between the bead-shaped shoulders 55 of the boss 52. Next, press the pressure tongues 72 and 73 of the lock release key 70 into the recess 75.
Once the key 70 is inserted into the interior, the key 70 is rotated in the direction of the arrow X (see FIG. 17), and the retaining ring 150 is rotated about its central axis.
55 is placed in a recess forming a sliding surface/guiding surface 60 on the inner circumferential surface 150a of the retaining ring 150.
At the same time, the leaf spring-like retaining metal 160 is retained in the recess 152 of the boss 52 by its own elastic force, so that the retaining ring 160
50 is locked to prevent accidental removal. The free end of the leaf-spring catch 160 is placed in the catch-like recess 153, so that a reliable locking effect is ensured. Recessed portion 15 of the stopper
3 is configured in an undercut shape, and the free end of the leaf spring-like catch 160 has a wedge-like form, so that the free end of the catch 160 reliably rebounds from the recess 153 of the stop. I can't.

The anti-skid device 10 is thus held on the wheel rim 11 by a fixing device comprising a fixing disk 50 and a retaining ring 150, and the snow chain 2 of the anti-skid device
00 is adapted to engage the tire running surface (see FIGS. 1 and 5).

Removal of the anti-slip device is effected for this purpose using an unlocking key 70 which is inserted into a recess 75 by means of pressure tongues 72, 73. By rotating the lock release key 70, the leaf spring-like lock 16 is released.
0 is the inner peripheral surface 15 of the retaining ring 150 from its locking position.
0a to its initial position in the recess 156. At the same time, the retaining ring 150 is configured such that the retaining web 155 of the retaining ring 150 is connected to the sliding surface/guiding surface 60 of the boss 52.
The retaining ring 150 mm is rotated until it passes through the
can be removed. The support disc 20 of the anti-slip device 10 is then removed from the boss 52 of the fixed disc 50. Furthermore, when a fixing device is prepared without using the anti-slip device 10, the retaining ring 150 is simply mounted on the fixing disk 50 and locked, so the anti-slip device can be used whenever necessary. Device 1
It is possible to attach 0.

The support disk 20 of the anti-slip device 10 has a central opening, so that the support disk 20 is connected to the fixed disk 5.
It is mounted on the boss 52 of 0. Since the diameter of this central opening is larger than the diameter of the boss 52, the boss 52
The support disc 20 of the anti-slip device 10, which is held in place, can perform eccentric movements. This allows the support arm 40 to engage with the support disc 20 around the tire running surface, accommodating the pressure or compression movements of the moving tire. Similarly, the chain of the anti-slip device Snow Chain 200
Applied to the compression motion of tires with moving grids,
This is because the chain grid is supported by support arms and held close to the tire running surface. Furthermore, the central opening in the support disc 20 is dimensioned to allow the disc 20 to traverse the circular protruding surface 57 on the boss 52. The support disk 20 is fixed upwardly by a retaining ring 150 that engages locally with this disk, while the rim is fixed by the actual fixed disk 50.

As shown in FIGS. 2, 3 and 4, each support arm 40 of the anti-slip device 10 is disposed at right angles to the longitudinal direction of the support arm and spaced apart on the support arm. A plurality of anti-wear bands 270 are provided. These anti-wear bands are made of metal or other wear-resistant material and are attached to the support arm 40.
and in order to fix this band 270, each support arm 40 is provided with a groove-like recess in the area of attachment of said band, for example a circular band 270.
70 is held in place by a pressure spring. On the side remote from the tire running surface, the anti-wear band 270 is configured in the form of a web, that is, in the form of a bulge;
On the side facing the tire running surface, it is advantageous if the corresponding part of the band is formed integrally with the material of the support arm 40 in order to be at the same end of the support arm. For better grip, each support arm 40 may be provided with an anti-wear band running in the longitudinal direction of the support arm.

In the embodiment of FIG. 17, the retaining ring 150 has two recesses 156 and an inner circumferential surface 150a, and a number of leaf spring-like retainers 160 corresponding to the number of recesses.
are now engaged. The number of recesses 156 is not limited to two, but five recesses 156 can be provided if necessary, and since there are five recesses for five clasps, one clasp 160 can be provided for each recess. can be engaged with. In this case, the lock release key 7
0 must have a corresponding number of pressure tongues, pushing the retaining ring 160 out of the recess and releasing the retaining ring 150.
is mounted on the boss 52, and the unlocking function is also possible.

The fixed disk 50 is provided with a spacer ring 80 in the vicinity of the rim screw or wheel stud opening 51 on the wall remote from the boss 52, which ring is configured as an interchangeable adapter. This allows the fixation device to be adapted to different tire sizes by means of spacer rings 80 of different sizes.

To attach the anti-slip device 10, which includes the support disc 20 and the support arm 40, to the rim or wheel 11 of a vehicle using a fixing device, which includes the fixing disc 50 and the retaining ring 150, the fixing disc 50 is attached to the rim. After fixing to the rim 11 using screws, wheel studs 18, etc., the support disk 20 of the anti-slip device 10 is mounted on the boss 52 of the fixed disk 50.
Since the retaining ring 150 is not attached, its retaining web 155 is attached to the bead-shaped shoulder 55 of the boss 52.
Place it in the gap between. Next, after inserting the pressure tongues 72 and 73 of the lock release key 70 into the recess 75, the lock release key 70 is rotated in the direction of arrow X (17th
), therefore, the inner circumferential surface 150a of the retaining ring 150
The locking web 155 in the slide surface/guide surface 60
until the retaining ring 150 is placed within the recess forming the
rotate around its central axis. At the same time, the leaf spring-like retaining metal 160 engages in the recess 152 of the boss 52 with its own elastic force, so that the engagement of the retaining ring 150 will not be released unexpectedly. The free end of the catch 160 is placed in the catch-like recess 153, so that a reliable locking action is ensured. The recesses 153 of these clasps are configured in the form of an undercut and the free ends of the clasps 160 have a generally wedge-like configuration, so that the free ends of the clasps 160 are securely removed from the recesses 153. cannot bounce back.

Therefore, the anti-slip device 10 is held on the wheel rim 11 by a fixing device consisting of a fixing disk 50 and a retaining ring 150, so that the support arm 40 of the anti-slip device 10 engages with the tire running surface. .

The anti-slip device 10 is removed by inserting the unlocking key, ie the pressure tongues 72, 73, into the recess 75 again. By rotating the lock release key 70, the leaf spring-like retaining metal 160 moves from its locked position to the recess 156 in the inner peripheral surface 150a of the retaining ring 150.
is moved to its initial position. At the same time, retaining ring 15
0 is rotated until its locking web 155 is moved from the slide and guide surface 60 of the boss 52, so that
Retaining ring 150 can be removed. Then,
The support disk 20 of the anti-slip device 10 is the fixed disk 50
is removed from the boss 52 of. Further, if the anti-slip device 10 is not used but a fixing device is prepared, the retaining ring 150 is simply mounted on the fixing disk 50, so the anti-slip device 10 can be removed whenever necessary. Is possible.

The support disk 20 of the anti-slip device 10 has a central opening, so that the support disk 20 is connected to the fixed disk 5.
It can be mounted on the boss 52 of 0. Since the diameter of the central opening is larger than the diameter of the boss 52, the support disk 20 of the anti-slip device 10 can perform eccentric movements. In this way, the anti-skid arm 40, which engages the tire running surface together with the support disc 20, adapts to the compression movements of the moving tire. Furthermore, the diameter of the central opening in the support disk 20 is determined to allow the support disk 20 to traverse the circular protruding surface 57 on the boss 52. The upper fixation of the support disk 20 is achieved by a retaining ring 150 which is counterbalanced and overlaps this disk, while the fixed disk 50 securely fixes the support disk 20.

The fixing disk 50 has an adapter disk 300 connected to the boss 52 of the fixing disk 50 by a threaded joint so that the fixing disk 50 with the boss 52 can be fixed to the wheel disk or rim of a vehicle. is provided on the side remote from the support disk 20. In order to fix the adapter disk 300 to the boss 52 of the fixed disk 50, the adapter disk 300 is provided with a plurality of boss fixing screw receiving holes 340 on a circle 341 around the center M of the adapter disk 300. , these holes are concentric with the hole 51 of the boss 52 of the fixed disk 50 (see FIGS. 13 and 14),
The number of holes 340 matches the number of holes 51 of boss 52. These boss fixing screw receiving holes 340
are arranged at equal intervals. Figures 13 and 20
In the illustrated embodiment, the adapter disc 300 has four receiving holes, whereas in the embodiment of the adapter disc 300 shown in FIG.
There are five receiving holes 340 on the top. The number of such holes 340 is determined by the number of holes 340 in the fixed disk 50 having the boss 52.
determined by the size of The bore 340 is internally threaded so that after inserting a corresponding screw, the fixing disk 50 mounted on the adapter disk 300 can be removably connected thereto.

The adapter disk 300 has a plurality of radially oriented elongated holes 302, 303, 304, 305 and 312, 313, 314, 315, 316, 31.
7, these are adapter disks 300
They may be composed of the same pitch, different pitches, or various pitches (see Fig. 20).

In the case of the adapter disk 300 shown in FIG. 20, the elongated holes are arranged on two circles having different diameters. The elongated holes 302 to 305 are provided at equal intervals on a circle 301 adjacent to the center M of the adapter disk 300, while the elongated holes 312 to 314 and 315 to 317 are partially provided on the outer circle 311 at unequal intervals. provided at intervals. There are four elongated holes on the circle 301 adjacent to the center M of the adapter disk 300, while there are six elongated holes on the outer circle 311.

The arrangement of the slots 302-305 on the inner circle 301 is such that the first hole 302 is at a distance of approximately 30° from a centerline ML passing through the center M of the adapter disk. Six elongated holes 312 to 314 and 315 located on the outer circle 311 of the adapter disk 300
Regarding ~317, long holes 312, 313, 31
4 are arranged at equal intervals. The distance between each hole is approximately
At 120°, first slot 312 begins at approximately 75° from centerline ML. A long hole 31 provided subsequently
In No. 3,314, the distance between each hole is approximately 120°.

Other elongated holes 315, 316, 317 in the outer circle are arranged in the adapter disk 300 as follows. The first slot 315 is located at a distance of approximately 45° from the centerline ML. Next, elongated holes 316 and 317 are provided around the left, and the distance between the holes 315 and 316 and the distance between the holes 316 and 317 are each approximately 90 degrees.
The two holes 315, 317 face each other. Elongated holes 302 to 305, 312 to 314 and 31 in the adapter disk 300 shown in FIG.
The spacing and arrangement of 5 to 317 is thus obtained.

In the embodiment of the adapter disk 300 shown in FIG. Five other long holes 332 to 336 are formed in the adapter disk on the outer circle 331 and are also arranged radially and at equal intervals. However, long hole 33
2 to 336 may be replaced with other long holes 322 to 326. The first elongated hole 322 arranged on the inner circle 321 is arranged at a distance of about 24° from the center line ML passing through the center M of the adapter disk, and then the other elongated holes 323 to 326 are arranged at equal intervals. It is set in. Next, the first elongated hole 33 located on the outer circle 331 at a distance of about 47° from the center line ML.
2 are arranged, and then there are other elongated holes 333 to 336 provided at equal intervals. The boss fixing screw hole 340 on the circle 341 is the first receiving hole 340
is positioned relative to slots 322-326 and 332-336 such that is on centerline ML and each subsequent receiving hole is located at a distance of approximately 72 degrees from each preceding hole. In the case of the adapter disk 300 according to FIG. 21, the elongated holes 332 to 33
6 is shorter than the long holes 322-326. Long hole 332~
336 is about half the length of the elongated holes 322-326. In the case of the adapter disk 300 according to FIG. 20, the slots all have the same length. The elongated holes on each circle are arranged so that this circle passes through the center of the elongated hole.

Although the adapter disc 300 is made of metal, particularly a corrosion-resistant material, it is also possible to use other high strength materials to fabricate the adapter disc.

〔Effect of the invention〕

As mentioned above, the present invention has a support disc, an arm, and a chain integrated as an anti-slip device, so compared to conventional anti-slip devices that only have support arms or only snow chains. Since the chain attached to the support arm is disposed over almost the entire outer peripheral surface of the running surface of the wheel, it has the advantage that the frictional force against snow, ice, etc. is extremely large. Furthermore, the chain can be attached simply by attaching a support disk, and there is no trouble associated with the prior art. Further, the anti-slip device according to the present invention can be easily installed without rotating the tire while the tire is positioned on the road surface, and after installation, the chain does not prevent the tire from running, including the U-shaped contour part. Since it can be positioned over the entire outer peripheral surface of the surface, the frictional force is further increased. In addition, the support disc is easily attached as a plug-in and can adapt to the movement of the wheel, and the elasticity of the arm to which the chain is attached is used to automatically tension the chain, making it effective against snow and ice. be able to. Furthermore, since it can be adapted to a variety of tires, there is no need for various anti-slip devices, and it has the advantage that it can be folded and stored in a small space.

[Brief explanation of drawings]

FIG. 1 is a schematic illustration of the antiskid device with chain grid as a snow chain when mounted on a car tire; FIG. 2 shows the two support arms of the antiskid device with the guide of the snow chain. 3 is a plan view of another embodiment of a chain guide for an anti-skid device between two support arms forming a wheel engagement opening; FIG. 4 shows two guide clips; FIG. 7 is a plan view of another embodiment of a snow chain guide between two support arms of an anti-skid device using a longitudinally movable chain part of the support arm forming a wheel engagement opening; Figure 5 is a plan view of a car tire with an anti-skid device and a mechanism for tensioning the outer chain of the snow chain held by a support arm; Figure 6 is the outer chain of the chain grid of the anti-skid device; FIG. 7 is an enlarged longitudinal sectional view of the end of the support arm with attached support arm; FIG. 7 is an enlarged plan view of another embodiment in which the outer chain of the chain grid of the anti-slip device is fixed to the end of the support arm; FIG. is a partial front view and partial longitudinal sectional view of a support arm fixed to a support disk and having a band-hinged part in the working position and in the bent position;
FIG. 9 is a view of the inwardly and outwardly pivotable support arm in the swung position; FIG. 10 is the inwardly and outwardly rotatable support articulated on the support disc of the cleat device; FIG. 11 is a partial front view and partial vertical sectional view of another embodiment of the arm; FIG.
Fig. 2 is a partial plan view of the support disk of the anti-slip device that holds the support arm, Fig. 13 is a plan view of the fixing disk with the boss of the fixing device for the anti-slip device, and Fig. 14 is the fixing disk. 15 is a side view of the fixing disk, FIG. 16 is a view of the closed area in the fixing disk, FIG. 17 is a plan view of the retaining ring of the fixing device for the anti-slip device, and FIG. 18 is a side view of the fixing disk. FIG. 19 is a plan view of the lock release key, FIG. 19 is a front view of the lock release key, FIG. 20 is a plan view of the adapter disk, and FIG. 21 is a plan view of another embodiment of the adapter disk. 10... anti-slip device, 11... wheels, 13...
... Tire, 20 ... Support disk, 40 ... Support arm, 50 ... Fixed disk, 52 ... Boss, 55 ...
Bead-shaped shoulder portion, 60... Sliding surface and guide surface, 70...
... Lock release key, 150 ... Retaining ring, 155 ...
Locking web, 160... Leaf spring-shaped stopper, 200
...Snow Chain, 201...Chain, 2
DESCRIPTION OF SYMBOLS 11... Chain portion, 210... Wheel engaging opening, 220... Clip, 300... Adapter disc, 340... Boss fixing screw hole.

Claims (1)

[Scope of Claims] 1. An anti-slip device for ice and snowmobiles having wheels with tires, comprising: a circular support disk; means for removably attaching the support disk to a wheel rim; a plurality of support arms extending radially and connected to the running surface of a tire mounted on a wheel rim to which the support disc is attached; and a plurality of support arms mounted on each free end of the radial support arms; a snow chain grid comprising: an outer chain; and a plurality of chain sections each having one end attached to the outer chain and the other end attached to one of the support arms; the outer chain extends over the entire outer periphery formed by the free ends of the support arms, except between a pair of support arms that are adjacent to each other; an endless chain disposed along the outer circumference of the support disk and the inner edge of each of the pair of support arms to form a U-shaped profile, the outer chain having a U-shaped profile; , the snow chain grid is adapted to form a mounting opening that allows the anti-skid device to be mounted in the fully operative position on the tire on the wheel rim without rotating the wheel. Anti-slip device. 2. Each support arm has a recess on both longitudinal edges near its free end for receiving and mounting the outer chain.
Anti-slip device according to. 3. Anti-slip device according to claim 1, wherein the support arm is removably and replaceably mounted on the support disc. 4. Each support arm is pivotably supported on a support disc and is held pivotably to an initial position in the direction of a central region of the support disc.
Anti-slip device according to. 5. Anti-slip device according to claim 1, wherein the support arm has a notch for forming a band hinge on its outer surface in the area close to the support disc. 6. Anti-slip device according to claim 4, comprising locking means for locking the support arm in said initial position. 7. Each support arm has a plurality of anti-wear bands of metal or other non-wearing material arranged at right angles and spaced apart along the length of the support arm. Anti-slip device according to. 8. Anti-slip device according to claim 1, wherein each support arm comprises on its outer surface at least one anti-wear band made of wear-resistant material extending in the longitudinal direction of the support arm. 9. a circular fixed disc having a central cylindrical boss extending adapted to be secured to a wheel rim; a circular aperture; and removably bonding the fixed disc such that the cylindrical boss extends through the circular opening. a circular retaining ring having attachment means for attaching the retaining ring; and a circular opening formed in the center with a diameter larger than the diameter of the cylindrical boss of the fixed disk, but smaller than the diameter of the retaining ring and the diameter of the fixed disk. The circular support disk is fixed in the axial direction between the retaining ring and the fixed disk, but is free to eccentrically rotate around the outer peripheral surface of the cylindrical boss of the fixed disk. The anti-slip device according to claim 1, comprising: the support disk capable of performing the following steps. 10. Anti-slip device according to claim 1, wherein the support arms are radially equally spaced, made of plastic material and have curved surfaces. 11. An anti-slip device according to claim 10, comprising gripping means at the free end of the bent support arm for increasing the friction of the anti-slip device. 12 The outer chain is secured between the adjacent pair of support arms in a U-shaped profile by a pair of short chain links, each short chain link being fixed to one of the adjacent pair of support arms. Anti-slip device according to claim 1, having one end attached to the base of the and the other end retained on the outer chain. 13. The anti-slip device according to claim 1, wherein each of the support arms is held pivoting about an axis parallel to the axis of rotation of the wheel. 14. An anti-slip device for ice and snowmobiles having wheels with tires, comprising: a circular support disc; a means for removably attaching the support disc to the wheel rim; and a means for removably attaching the support disc to the wheel rim; a plurality of support arms extending to and connected to the running surface of the tire mounted on the wheel rim to which the support disc is attached; and a plurality of support arms having continuous links and attached to the free ends of the radially extending support arms. a snow chain grid including an outer chain, the snow chain grid further comprising a plurality of chain sections each having one end attached to the outer chain and the other end attached to one of the support arms; the outer chain has an interrupted configuration with a first end and a second end, the outer chain first end being secured to one of a pair of adjacent support arms; The link portion of the outer chain fixed to the other of the pair of adjacent support arms has a link length to the second end of the outer chain shorter than a link length to the first end of the outer chain; A through ring located between the pair of adjacent support arms is attached to the first end of the chain, and a link portion attached to the second end of the outer chain and the other of the pair of adjacent support arms. A chain extension between the two passes through the through ring, and the chain extension extends along the inner edge of the adjacent pair of support arms and the outer edge of the support disk between the pair of support arms. a mounting opening having a length sufficient to form a U-shaped profile and by which the U-shaped profile allows the anti-skid device to be installed in the fully operative position without rotating the wheel; An anti-slip device comprising: the snow chain grid formed thereon; 15. fixing means attached to the support disc for fixing a portion of the chain extension to the support disc, said fixing means being attached to the running surface of the tire and the tire after the anti-slip device is attached to the wheel; Anti-slip device according to claim 14, making it possible to tighten the outer chain around. 16. Anti-slip device according to claim 15, wherein the securing means is a tenter hook. 17 A plurality of guides fixedly arranged in a circular shape on the support disk, one end attached to the second end of the outer chain, the other end fixed to the support disk, and guided by the guide. Anti-skid device according to claim 16, comprising a spring element for continuously tensioning the outer chain on and around the running surface of the tire. 18. Claim 14, wherein said support arm is removably and replaceably attached to a support disc.
Anti-slip device according to. 19. The anti-slip device according to claim 14, wherein each support arm is pivotably supported on the support disc and is pivotably held in an initial position in the direction of the support disc. 20. Anti-slip device according to claim 19, comprising locking means for locking the support arm in said initial position. 21. a fixed disc having a central cylindrical boss and adapted to be fixed to the wheel rim; a circular aperture; and a mounting for removably mounting the fixed disc such that the cylindrical boss extends through the circular opening. a circular retaining ring having means; a circular retaining ring having a circular opening in the center having a diameter larger than the diameter of the cylindrical boss of the fixed disk, but smaller than the diameter of the retaining ring and the diameter of the fixed disk; The support disk is fixed in the axial direction between the retaining ring and the fixed disk, but can freely eccentrically rotate around the outer peripheral surface of the cylindrical boss of the fixed disk. An anti-slip device according to claim 14, comprising: the support disc; 22. Anti-slip device according to claim 14, wherein the support arms are radially equally spaced, are made of plastic material and have curved surfaces. 23. An anti-slip device according to claim 14, comprising gripping means at the free end of the bent support arm for increasing the frictional force of the anti-slip device. 24. Anti-slip device according to claim 14, wherein the support arm is bent and held pivoting about an axis parallel to the axis of rotation of the wheel. 25. An anti-slip device for ice and snowmobiles having wheels with tires, comprising: a circular support disk; means for removably attaching the support disk to the wheel rim; and means for removably attaching the support disk to the wheel rim; a plurality of support arms extending into and engaging the running surface of a tire mounted on a wheel rim to which a support disc is attached; and an outer chain attached to the free end of said radially extending support arms. The snow chain grid further includes a plurality of chain sections each having one end attached to an outer chain and the other end attached to one of the support arms, the outer chain comprising: , interrupted by an outer chain first end fixed to one of the pair of adjacent support arms and a second outer chain end fixed to the other of the adjacent pair of support arms; The structure extends over the entire outer periphery formed by the free end portions of the support arms except between the adjacent pair of support arms, and the free end of each inner green portion of the adjacent pair of support arms. said snow chain grid including first and second clip members secured at each end to an upper portion of the base side and a lower portion of the base side, respectively; a chain portion having first and second end links retained and having a length approximately equal to the spacing between the lower portions of both clip members; for mounting in the fully operative position, said chain portion is positioned in the base region of said pair of adjacent support arms so as to form a U-shaped profile with the clip member and define a mounting opening; An anti-slip device, characterized in that the chain portion is automatically moved into the free end region of a pair of adjacent support arms by rotation of a wheel. 26. Anti-slip device according to claim 25, wherein said support arm is removably and replaceably attached to a support disc. 27. Anti-slip device according to claim 25, wherein each support arm is pivotably supported on the support disc and is held to pivot to an initial position in the direction of the support disc. 28. Anti-slip device according to claim 27, comprising locking means for locking the support arm in said initial position. 29. a support disc having a central cylindrical boss and adapted to be fixed to the wheel rim; a circular aperture; and a mounting for removably mounting the fixed disc such that the cylindrical boss extends through the circular aperture. a circular retaining ring having means; a circular retaining ring having a circular opening in the center having a diameter larger than the diameter of the cylindrical boss of the fixed disk, but smaller than the diameter of the retaining ring and the diameter of the fixed disk; The support disk is fixed in the axial direction between the retaining ring and the fixed disk, but can freely eccentrically rotate around the outer peripheral surface of the cylindrical boss of the fixed disk. 26. An anti-slip device according to claim 25, comprising: the support disc; 30. Anti-slip device according to claim 25, wherein the support arms are radially equally spaced, have curved surfaces and are formed of plastic material. 31. An anti-slip device according to claim 25, comprising gripping means at the free end of the bent support arm for increasing the friction of the anti-slip device. 32. Anti-slip device according to claim 25, wherein the support arm is bent and held pivoting about an axis parallel to the axis of rotation of the wheel. 33. Anti-slip device according to claim 25, wherein the clip portion is tapered conically from the upper portion to the lower portion.