JPH0329605B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anti-slip device for vehicle wheels with tires, especially pneumatic tires, for use on snow and ice surfaces.

In order to drive a car on snow-covered slopes or ramps in winter, winter tires, so-called sticky tires, are actually used in addition to stator chains. Snow chains are rarely used because they are often difficult to install on vehicle tires, and the tires must be driven on to avoid damaging the road, in other words, on dry roads. This is because the snow chains would be seriously damaged if the snow chains were to be removed, making it impossible to achieve high speeds, so the snow chains would have to be removed on dry roads after snow and ice have formed. Especially on roads that have been covered with ice for a short period of time, for example on ice surfaces caused by heavy rain falling on an icy road surface, snow chains and sticky tires are of little use. Tires with spikes are not always used either.

However, in addition to snow chains and adhesive tires, driving aids that do not use snow chains or adhesive tires are also known. Such driving aids, which consist of gripping clips set on the tires, serve only to enable the vehicle to get out of mud or snow over short distances.

In order to increase the road grip of vehicle wheels, an anti-slip device is known from US Pat. No. 2,443,261 which can be mounted on the wheel rim of a passenger car; It consists of a ring plate that can be rotated to
This ring plate is equipped with a swinging lever that engages and disengages a triangular anti-slip arm, and the anti-slip arm itself is attached to the base plate so that it can pivot, so that when the ring plate pivots, The anti-slip arm is
It is pivoted from a retracted position around the tire to a radial use position. This may cause the sharp end portion to protrude beyond the surface formed by the tire running surface and sink into the ground surface. In such known anti-skid devices, the anti-skid arm is placed on the side of the tire even in the removal position and does not engage the entire running surface of the tire, so that the tire That is, the road surface gripping force of the wheels cannot be increased by the direct action of the tire running surface on the anti-slip arm or the action of the anti-slip arm on the ground surface. In use, the anti-skid arm becomes an integral component of the tire, in order to obtain an effect corresponding to a spike embedded within a tangible object in the running surface of the tire. In addition to this, this known anti-slip device requires a lot of space.

Other anti-slip devices for vehicle tires are known from French patent no. 1368348:
It consists of a number of arm-shaped grips that can be attached to each vehicle rim via a base plate, and the arm-shaped grips are constantly engaged with the vehicle running surface when in use, and even when not in use. Do not leave the surface area. When not in use, the entire anti-skid device must be removed from the rim.

Another known anti-slip device, disclosed in US Pat. No. 2,610,898, consists of a number of spike-like skeletons or teeth that are guided into use on the lateral side of the tire. However, it is not designed to cover the tire running surface. The mounting and dismounting operations of the radially arranged anti-slip arms are carried out using a plate which is rotatable and can be mounted on the motor vehicle rim. This anti-slip arm, which is used to prevent slipping, does not have spring elasticity and is rigid, because such an anti-slip arm is
This is because when the wheels rotate, they must penetrate into the snow and ice covered surface of the ground.

According to German Patent Publication No. 2750111, an anti-slip device for a passenger car wheel with tires, in particular with pneumatic tires, is known;
From a base plate which can be fixed to the wheel plate and a support housing formed by a ring plate facing this base plate and which can be pivoted about the center point of the plate, at least two It consists of two non-slip arms, each of which is rotatably supported on a base plate, operated by a crank, and pivotally supported by one end of a swing lever.
This swinging lever is rotatably connected at the other end to a ring plate on the outer periphery, and when the ring plate is rotated relative to the base plate, the anti-slip arm is connected to the outer periphery of the tire. It can be swung from a retracted position to a radial position of use. Between the base plate and the ring plate,
An intermediate space is formed for storing the non-slip arm and the swing lever in the initial position, the swing lever and the non-slip arm are made of spring steel, and the swing lever ,
The dimensions are such that it can be transitioned from a substantially stretched configuration in its initial state to a curved configuration extending into the tire running surface when placed in use.
Although the assembly of such an anti-slip device is not particularly difficult, the device itself has a complex construction.

Therefore, an object of the present invention is to eliminate this type of problem. The present invention works as an anti-slip mechanism and is useful for increasing the road gripping ability of the wheels of a passenger car on snow and ice surfaces, and is economical despite its high efficiency in manufacturing. Moreover, higher speeds can be obtained than by driving with snow chains, and the operating capacity is superior to that of known anti-slip devices, especially during the braking stroke, which is capable of preventing slippage in the form of spikes. This mechanism secures the spikes on the tire running surface, and the anti-slip mechanism itself can be installed and removed at any time with less effort than snow chains. Moreover, it solves the problem of creating an anti-slip device for snow and ice passenger vehicle wheels with tires, in particular with pneumatic tires, with a simple technical construction.

In order to solve this problem, the invention provides that the device comprises a ring-shaped structure in the outer surface of the tire with anti-slip arms made of elastic steel or plastic with spring elasticity arranged radially fixedly at equal intervals from each other. Cover plate - the free end of the steel or plastic can be easily bent to cover the tire running surface in whole or in part and has a gripping material on the outside or has spikes. ……
and a tension plate set on the rim as a cover plate - this tension plate and anti-slip arm are tightened so that the anti-slip arm is connected to the tire running surface during use. It is formed using a method. Antiskid devices have been proposed for vehicle wheels with tires, especially pneumatic tires, used on snow and ice surfaces.

The advantage obtained by the present invention is that basically only a device configured in this type of manner can achieve anti-skid properties for automobile tires and a high degree of road grip for automobile wheels on snowy and icy surfaces. It is in. A radially extending anti-skid arm made of spring-plated steel or spring-like elastic plastic projects from the outer tire into the running area of the tire, so that when the tire is turned, the end of the anti-skid arm is in contact with the tire tread and the road or road surface. It will be located between it and the ground surface. The anti-slip device has relatively small structural parts and is therefore simple in its construction, so that the installation and removal of the anti-slip device is easy for any person. Additionally, the structure is completely maintenance-free.

A tire arrangement requiring anti-slip arms is achieved by a tight deployment of the covering plate and the anti-slip arms. The retention of the anti-slip device on the rim is constructed in such a way that it can be carried out particularly quickly;
Tightening of the covering plate and the anti-slip arm can be carried out via the tensioning plate.
By pivoting the tensioning plate, the tensioning part can be separated and the anti-slip device can thus be easily removed. The fixing of the anti-slip device can take place, for example, at the tip of the rim or at the vent. Installation and removal of the anti-slip device is possible in the shortest possible time. There is no risk of contamination.

By tightening the covering plate and the anti-skid arm, the anti-skid arm is able to grip the passenger car tire on the running surface side when the anti-skid device is installed. The free end of each anti-skid arm is arranged in the area of the running surface of the tire and is pressed against the running surface while maintaining an approximately circularly curved shape due to the applied pretensioning movement.

Due to the predetermined pretensioning movement of the covering plate and the anti-slip arm, and because of the fact that the anti-slip arm is made of spring steel or plastic with spring-like elasticity, the free end of each anti-slip arm is , while the car is running;
Alternatively, an anti-slip arm is arranged between the tire running surface and the ground surface while the wheel is rolling, thereby providing the possibility of adapting the anti-slip arm to the cross-sectional shape of the tire. Due to the previously provided spring-elastic configuration of the anti-skid arm in connection with the pretensioning operation, the anti-skid arm can be subjected to such elastic deformations and configurations in the use state of the device. By arranging the anti-slip arm between the tire running surface and the ground surface, it is possible to achieve extremely good adhesion of the passenger car tire on the ground surface. In addition, in this way it is also possible to achieve the effect of a tire with spikes by means of such an anti-slip device.

Installation of the anti-slip device is painless. This is because if the anti-slip arm is located in the tire area, and on the other hand the cover plate is in the pre-tensioned state by fitting into the recess in the rim at one end, then the tensioning which is set on the rim and connected to the rim is This is because only the covering plate is set on the rim by the anti-slip arm while being secured by the plate. Although the production of anti-slip devices can be done at low cost,
This is because the device itself is made up of only a few parts. When not actually in use, the anti-skid device can be stored in a minimum space and the anti-skid device can be placed together with a replacement tire in the trunk space of the vehicle so that the anti-skid arm can capture the tire of the replacement wheel. This is because it can also be set to . Moreover, because of the relatively flat structure of the anti-skid devices, some anti-skid devices can be reliably set one on top of the other on a replacement tire without any difficulty. In use,
Depending on its positioning and configuration, the anti-slip arm can
Also, on the basis of the pretension provided in advance, it will automatically adapt to the crushing movements of the tire. At the same time, the anti-slip device allows stable driving without damaging the vehicle or the road. This device can be integrated into most conventional rims and requires no modification of the rim.

In addition, the invention further provides that the device comprises a material made of plastic or other suitable engineered material, which is curved and covers the running surface of the tire and is provided with gripping materials or spikes on the outside of the free end of the tire. consisting of a support plate fixed to a wheel plate or rim with non-slip arms swingable about an axis running radially at regular intervals from each other and parallel to the vehicle plate support axis The present invention is based on the solution that an anti-slip device is proposed for snow and ice motor vehicle wheels with tires, in particular pneumatic tires, which are designed in this way.

Furthermore, the gist of the invention itself is that the support plate has a rim screw, a wheel bolt, or a screw provided on the rim fixed to a tensioning part of the bolt in the wheel plate or the rim, and has a gap for the rim screw, Furthermore, a locking plate is provided on the support plate, which provides a fixing device for the anti-slip device on the tire rim, in that it is provided with a mechanism for fixing the rim screw with the support plate. , the present invention is premised on.

With a device of this type of construction, anti-slip properties for motor vehicle tires and high road grip of motor vehicle wheels on snowy and icy surfaces are achieved. The anti-slip arm is swingable on the support plate fixed to the rim, so this device can be installed in a tire support area on a ground surface such as a road to prevent slipping. The arm pivots laterally, and in the next step, this arm touches the tire running surface during startup,
Moreover, as long as this arm touches another anti-slip arm in a radial position, there is no problem. In this anti-slip device, the radial forces that occur during running are no longer transmitted to the base plate, but are received by the anti-slip arm with swinging force. During braking, the anti-slip arm is positioned in front of the tire due to the moment of inertia generated, thus increasing the braking action. The anti-slip arm functions in this case as a friction-increasing element.

The anti-slip arm is made of plastic and has a certain spring elasticity, and is provided with material reinforcement in the curved end region, so that when driving, the free end of the anti-slip arm is slightly above the tire running surface. In driving conditions in the range where the tire is in frictional contact with the road, this effect causes a pressing of the anti-skid arm on the tire running surface, and as a result the skid arm Accumulated snow and ice is scattered by the interaction between the pressing effect and the lifting effect between the tire running surface and the tire running surface. This increasing effect is
This occurs only in the curved free end region of the anti-slip arm, but is extremely rare. Furthermore, when traveling, the anti-slip arms are located radially and are equally spaced from each other. The swinging motion of the arm is an effective aid for assembling the anti-slip device, and at the same time can assist the braking function. The anti-slip arm assumes a vertical position during travel. The construction of the non-slip arm from plastic ensures that it has a long service life.

Assembly of the anti-slip device requires no effort and can be carried out simply by setting it on a rim screw fixed to the rim used. For this purpose, only the support plate supporting the anti-slip arm is set on the rim screw in such a way that the rim screw is clamped with its head end through the gap provided in the support plate. The locking plate, which is rotatably arranged on the support plate, has a locking device so that the locking of the support plate is effected by the rim screw when the rotary plate is pivoted. By pivoting the locking plates toward each other, the locking at the rim screw is loosened, so that the cleat device can be easily removed.

After the anti-skid device has been fixed on the wheel rim, the anti-skid arm captures the motor vehicle tire on the running surface side. The free end of each anti-skid arm comes to be located in the tire running surface area. The anti-skid arms are made of a particularly spring-elastic plastic and have a curved material, so that the free end of each anti-skid arm touches the tire running surface and the ground surface when the vehicle is in motion or when the wheels are rolling. The possibility is provided to adapt the anti-skid arm to the cross-sectional shape of the tire so that it is located between. The positioning of the anti-slip arm between the tire running surface and the ground surface results in very good adhesion of the motor vehicle tire to the ground surface. With such a system, there is a possibility that an effect similar to that of a tire equipped with spikes can be achieved.

The production of the anti-slip device can be carried out at low cost, since this device consists of only a few parts.
When not in use, the anti-skid device can be stored in a minimal amount of space, and the possibility exists that the anti-skid arm can be attached to the tire of a replacement wheel and stored in the trunk of a motor vehicle. Moreover, because of the relatively flat structure of the anti-skid devices, several anti-skid devices can be easily secured to replacement tires one after the other. When in use, the anti-skid arm will automatically adapt to the crushing movements of the tire itself, based on its deployment and configuration.

At the same time, this anti-slip device ensures stable driving and does not damage the vehicle or the road.
The anti-slip device can be integrated into most conventional rims, without requiring any modification of the rim. This is because the fixing of the anti-slip device takes place via a specially designed rim screw. In the case where the rim is secured to the wheel bolt by means of a nut, the nut ensures a matching configuration to the rim screw, and in this case also a labor-free fixing of the anti-slip device is possible.

As shown in FIG. 1, the anti-slip device consists of a ring-shaped cover plate 20, a tensioning plate 30, and a number of anti-slip arms 40 fixed to the cover plate 20 and extending radially. The anti-slip device is fastened to a wheel 1 having a tire 13 which at the same time forms a rim. The wheel 11 is provided with a braking part, which is not shown in the figures. Tire 1
The running surface area of 3 is designated by 14 and the outer surface of the tire by 15.

The covering plate 20 has a strip 21 running parallel to the side surface 15 of the tire - an anti-slip arm 40 on this strip.
is fixed - and fragment 2 is bent downwards.
2, and the free end of this strip is in the recess 1 of the rim.
It is provided with a gripping tip 23 in the form of a jamb that fits into the inside of the gripper 7. On the other hand, a gripping mechanism 24 is provided on the side opposite to the gripping tip 23 of the piece 22 of the covering plate 20, and a peripheral piece 31 of the tensioning plate 30 is fitted into this gripping mechanism 24. It is being Covering plate 20 to tensioning plate 30
Such a gripping mechanism 24 in is designed in the form of a ring groove so that the tensioning plate 3
0 is fitted into this ring groove shape with its peripheral edge piece 31 (FIG. 1). Piece 2 of covering plate 20 supporting anti-slip arm 40
1 and the anti-slip arm 40 occupy the position shown in FIG. 2 in the first pre-tensioning position. When the covering plate 20 is attached to the rim 11 together with the tensioning plate 30, the covering plate piece 21
assumes a contact position with respect to the anti-skid arm 40 as shown in FIG. The free end 41 of the anti-slip arm, which has a circularly curved shape, completely or partially captures the running surface 14 of the tire 13; Dependent.

A tensioning plate 30 is fixed to the rim 11, and the covering plate piece 22 is attached to the rim recess 1 via the piece 31.
7 and thus secure the position, the covering plate strip 21 is placed under some pretension by the anti-slip arm 40, which tension is removed from the running surface area 14 of the tire 13. To prevent the anti-slip arm 40 from floating.
The pre-tensioning force provided in advance serves to bring the anti-skid arm 40 into fixed contact in the running surface area 14 with the outer surface 15 of the tire 13 .

In order to ensure a high contact tension even in use, i.e. when driving, the covering plate 20 is
The strip 21 has the cross-sectional shape shown in FIG. According to this, the covering plate 0 has an edge strip 25 tapering towards the outside, which strip with its free end rests on a non-slip arm 40, which itself further extends onto the tire running surface 14. Make it stick out inside.

The anti-slip arm 40 fixed to the cover plate 20 is made of spring-plated steel or a cold-fast and wear-resistant spring-resilient plastic. In this case, each anti-slip arm 40 is arranged in such a way that the curved end piece 41 rests on the running surface 14 of the tire 13.
0 itself is formed with a non-slip arm end configuration which is pre-bent in the form of a circular curvature, as can be clearly seen in FIG. Covering plate 2
The fixation of the respective anti-slip arm 40 at 0 takes place via bolt-like or rivet-like connecting parts 26 and 27, in practice the anti-slip arm is removed from the cover plate 20 in order to replace the worn anti-slip arm 40. 40 can also be fixed in a removable manner.

Similar to the anti-slip arm 40, the covering plate 2
0 can also be made from spring plate steel or plastic with spring elasticity, so that on the basis of the previously applied pretension, on the one hand:
A sufficient contact of the anti-skid arm 40 with the running surface area 14 of the tire 13 is achieved, and on the other hand a certain elasticity is imparted to the anti-skid arm 40 to accommodate deformations of the tire during rolling. There is.

To increase tension, each anti-slip arm 40 has a specific cross-sectional shape. As shown in FIG. 3, the anti-slip arm 40 has a circularly curved cross-section, whereas the anti-slip arm 40 according to the embodiment shown in FIG. It has a slightly rectangular cross section with a reinforcing skeleton 43 running through the center.

Each of the individual anti-slip arms 40 is fixed at its end 40a to a cover plate 20, which is secured to the outer side area 15 of the tire 13 via a tensioning plate 30, so that the anti-slip Arm 40 can assume the position shown in FIG. The number of anti-slip arms 40 on the covering plate 20 can be selected arbitrarily. However, at least two anti-slip arms must be present. All anti-slip arms 40 are arranged with the same angular spacing from each other.

The tensioning plate 30 corresponds to the shape of the rim and is designed in the form of a housing. A ring-shaped covering plate 20 is provided via this plate 30. Therefore, the tensioning plate 30 has a piece 31 and is supported by the piece 22 of the covering plate 20 via the gripping mechanism 24 .
The gripping of the covering plate 20 on the rim 1 is particularly designed as a quick tensioning mechanism and, for example, fits into a recess in the rim and the tensioning plate 3
It is constituted by a gripping tip segment 23 which has a protrusion that is tensioned via a sector segment with 0 or is shaped. Tension plate 30
is rotatable around the wheel axis and fixed to the rim 11. Therefore, by pivoting the tensioning plate 30, the tensioning state is released and the anti-slip device can be easily removed. The tensioning plate 30 then has, in its peripheral region, spaced apart segment-like strips which, in the tensioning position, engage the ring groove-like portion of the gripping mechanism 24 formed in the cover plate 20. This gripping mechanism 24
must be deployed and configured in a separate manner. Thus, by pivoting the tensioning plate 30, the segmented strip can be moved out of the gripping mechanism 24 with its peripheral edge, and the anti-slip device can be removed. However, it is also possible to combine the tensioning plate 30 with the covering plate 20, so that the anti-slip device 10 can also be fixed to the rim 11 as one structural unit. The fixation of the tensioning plate 30 can also take place at the tip 18 of the rim or in the intrarim air hole 18a.

Each non-slip arm 40 has a free end 41
on its outer surface, or at least a spike 45 on its free end. In the embodiment shown in FIG. 1, the anti-slip arm 40 has two spikes 5 at its distal end 41. In the embodiment shown in FIG. The gripping feature formed on the outer surface 42 of the distal end 41 of the cleat arm 40 may be configured as a strut or grooved feature, although other feature configurations may be provided. Essentially, the adhesion range between the tire running surface and the ground surface is increased via such an anti-slip arm 40.

Spikes 45 arranged on the anti-slip arm 40
can be constructed by methods known per se. The embodiment of the spike 45 shown in FIG. 5 is particularly advantageous. Because such spikes
This is because it complements the adhesive force on the tire side. The spike 45 consists of a plate-shaped core body 47 which tapers upward in a central portion into a conical shape and has a conical slope 47a. Such a core body 47 has a bolt-shaped hard metal core 46 in the center thereof, and this hard metal core projects from the core body 47 with a piece 46a. On the side of the hard metal core 46 opposite the strip 46a, the core body 47 has a gripping bridge 48, the length of which extends from the non-slip arm 4.
The thickness almost corresponds to that of 0. At its free end, this gripping pin 48 supports a tire-side adhesive body 49, which can, for example, be configured in the form of a spherical hood. When the anti-slip arm 40 with its curved free end 41 rests on the running surface 14 of the tire 13, the adhesive object 49 of the spike 45 fits into the tread of the tire running surface. However, this ensures a high degree of adhesion of the anti-slip free end to the tire running surface. In this way, the anti-skid arm 40 is secured safely on the tire running surface due to the shape of the tire itself.

The invention is not limited to the embodiments described above and shown in the figures. Variations in the configuration of the cover plate 20 are within the scope of the present invention, as are configurations with other configurations of the tensioning plate 30 adapted to individual rim construction styles. The fitting arm portion 22 of the covering plate 20 may have a different form from that described above depending on the structure of the rim. To make the tensioning plate 30 easier to handle, it may be provided with a grip-shaped handle, which is not shown in the figures.

After attaching the covering plate 20 by tightening through the tensioning plate 30, the covering plate piece 21 is
It receives a pressing action outward from its initial position, and, like the anti-slip arm 40, has a tendency to automatically return based on the material selection at hand, and slips on the tire running surface. This will result in the stop arms 40 being brought into contact.

As shown in FIGS. 6 and 7, the anti-slip device 100 includes a support plate 120 and a plurality of anti-slip arms 140 fixed to the support plate 120.
It consists of The anti-slip device is tire 13
It is fastened to a wheel 11, which at the same time is also a rim, with a rim. The wheel 11 has a braking part, which is not shown in the figure. The running surface area of the tire 13 is designated by 14 and the outer surface of the tire is designated by 15.

Support plate 1 for the wheel or rim 11
The fixation of 20 takes place via rim screws 116 (FIGS. 7 and 11) or via wheel bolts. However, the rim itself has a rim 11
A screw-like or bolt-like gripping mechanism may be provided for securing the support plate 120 to the support plate 120 .

In the embodiment shown in FIG.
20 is configured as a ring plate and has a base plate 130 in its central region, which base plate is secured to be rotatable in the support plate 120 or can be fixedly connected thereto. However, this will be discussed in more detail later. A locking plate 150 is rotatably held on this base plate 130.

This base plate 130 has a number of holes 136 for guiding the rim screws 16 therethrough. The number of holes in the base plate 130 each corresponds to the number of rim screws 116. In the illustrated embodiment, the base plate 130 has four holes 136. When the base plate 130 is fixedly stacked on the support plate 120, i.e. when the support plate 120 is configured as a completely flat plate, the support plate 120 has a rim screw 1.
A number of holes 136 corresponding to the number of holes 136 are prepared.

The support plate 120 is configured as a completely flat plate and has holes 13 for the rim screws 116.
6, or if the support plate 120 is designed as a ring plate and a base plate 130 with holes 136 for rim screws is fixed to this support plate, the anti-slip arm 140 As is clear from FIG. 7, the support plate 120 is pivotable at or near its outer periphery about a pivot 141 running parallel to the wheel plate support axis 117.

Each anti-slip arm 140 has a curved portion on one side. An arm portion 142 that runs parallel to the outer periphery 15 of the tire 13 is continuous with a curved portion 143 on one side, and when the anti-slip device is installed, this curved portion will prevent the tire from running on the running surface. 14 as a whole (FIGS. 7 and 18).
Each anti-slip arm 140 is made of plastic or other suitable material, with particular preference given to plastics which exhibit spring elasticity but are sufficiently self-stabilizing. At its free end 143a, each anti-skid arm 140 has a projection 147 on the side facing the tire running surface 14 and on the outside at least one spike 1 constituted by the plastic material of the anti-skid arm.
It has 46. The protrusion 147 on the side of the anti-slip arm 140 facing the tire running surface increases the friction between the anti-slip arm 140 and the tread of the tire running surface 14, resulting in a non-slip surface on the tire running surface. Excellent adhesion of the arm is guaranteed. At least one hole 145 for the attachment of a spike made of a metal material, instead of a spike 146 formed of a non-slip arm material and formed at the same time during the manufacture of the non-slip arm 140.
The free end 143a of the anti-slip arm 140 can be provided with a. Since each anti-slip arm 140 is constructed from a wide piece, it is possible to arrange a large number of spikes at the free end 143a of the anti-slip arm (FIGS. 14-18).

Furthermore, each anti-slip arm 140 has a material attachment portion 148 within the curved region 143b. With such a material attachment part 148,
Particularly in the curved area 143b, the weight of the anti-slip arm is increased, so that the arm portion 142 of the anti-slip arm 140 is prevented from lifting laterally away from the outer tire surface 15. Furthermore, each anti-slip arm 140 is
A reinforcing skeleton 149 may be provided, which also results in the formation of a material attachment portion 148 (fourteenth
Fig. 16). A locking plate 150 is arranged on the base plate 130 or the support plate 120 so as to be rotatable about an axis 151.
has a locking device 250 by which the anti-slip device is secured and tightened relative to the wheel or rim 11. Such a locking plate 150 consists of a substantially square plate-shaped part 150a, which in the region of its four corners has four lateral arms 152, each of which has a semicircular shape. It has a fitting recess 153 (FIG. 9). Due to this fitting recess 153 in the arm 152 of the locking plate 150, the locking of the base plate 130 set on the wheel 11 is performed so that the fitting recess 153 takes the arrow direction X when the locking plate 150 turns, and the rim This is done by passing through the hole 136 for the screw 116 and fitting into the rim screw 116.

Such a rim screw 116 has the configuration shown in FIGS. 7 and 11. According to this, each rim screw 116 is composed of a bolt-like body 260 having an external thread 261 formed at one end. The other head-shaped end 264 of the rim screw 116 has a reduced diameter section 262 or ring groove. The transition of the ring groove to the bolt-like body 260 is constituted by a shoulder-like part 263, which at the same time also serves as a support surface for the base plate 130 and its In this case, the fitting operation of the locking device is not obstructed.

The hole 136 in the base plate 130 has a diameter that at least matches the diameter of the rim screw 116.
As shown in FIGS. 8 and 12, the holes 13
6 is configured as a long hole, and the base plate 1
Holes 136 are arranged radially within 30 along its length. However, the possibility of providing other embodiments within the base plate 130 also exists. That is, each hole 136 consists of a circular portion 136a, the diameter of which is the rim screw 1.
It is larger than the diameter of 16. This circular portion 136a is followed by a long hole portion 136b, and the diameter of this portion 136b matches the diameter of the ring groove 262 of the rim screw 116.
This form of the hole 136 has a long hole portion 136b.
is arranged so that it is located on a circularly curved curve. Anti-slip device 1 on rim screw 116
00 locking is performed simply by pivoting the base plate 130. That is, long hole portion 1
36b is located in the area of the ring groove 262 of the rim screw 116, thereby providing a locking action. An embodiment of this kind is only possible if the base plate 130 is pivotably supported on the support plate 120. Furthermore, a specially constructed locking plate 150 with locking device 250 is not required in such an embodiment. Base plate 130 has a handle, not shown, to allow pivoting of base plate 130 for subsequent locking purposes.

On the other hand, if the base plate 130 is provided with the holes 136 shown in FIGS. 8 and 12, it will be necessary to use a locking plate 150 with a locking device 250. In order that the locking plate 150 can be actuated around the pivot 151 for locking purposes, the locking plate 150 is again provided with a handle, which is not shown in the figures.

The number of arms 152 having semicircular recesses 153 in the locking plate 150 corresponds to the number of rim screws 116 present.

The fitting recess 153 in the arm 152 of the locking plate 150 moves in the direction of arrow X when the locking plate 150 rotates, and as a result, it fits into the ring groove 262 of the rim screw 116. The support plate 120 or the base plate 130 is located within the cover plate 160 at the portion 2 where it forms a shoulder for the rim screw 116 when the anti-slip device 100 is installed.
63 and, as a result, on the support plate 120 or the base plate 130.
2, the locking plate 150 having a ring groove 262 of the rim screw 116 is located within the plane defined by the ring groove 262 of the rim screw 116, and when the locking plate 150 rotates, the fitting recess 153 of the locking plate 150 is located in the ring groove 262 of the rim screw 116. It can be fitted into the groove 262. The radial arrangement of the holes 136 on the base plate 130 further ensures that while the fixation process is proceeding,
This provides the advantage of allowing the anti-slip device 100 to be positioned straight against the rim screw 116. Next, in the locked state, the fitting recess 15
An arm 152 having an area adjacent to 3 completely covers the area of the hole 136 so as to stay around the rim screw 116 guided through the hole, so that the anti-slip device 100 rests on the wheel 11. Fixed.

The locking device 2 described above and also shown in the figures
Instead of 50, locking devices configured in other ways can also be used. With the aid of the rim screw 116 and due to its structural configuration, the locking action is essentially activated.

Support plate 120 or foundation plate 130
The lock plate 150 disposed above is covered by a cover plate 160, which is secured to the support plate 120 or the base plate 130 so that the rotation of the lock plate 150 is not hindered in any way. (7th
figure). The cover plate 160 has a hole, indicated by 161, through which a handle, not shown in the figure, fixed to the rotary plate 150 is inserted. In addition, covering plate 1
60 has a number of sight glass holes corresponding to the number of rim fixing screws. The covering plate 160 is rotatably secured on the support plate 120 of the base plate 130 by a manually operated grip member and is connected to the locking plate 150.

When the support plate 120 is fixedly connected to the base plate 130 or when the support plate 120 is also the base plate 130, the anti-slip arm 140 is connected to the support plate 120.
is pivotably supported on the support plate 120 via a pivot 141 around the periphery of the support plate 120 . Such pivotability of the anti-slip arm is obtained through a riveted or threaded connection 170, which allows the pivotability of the anti-skid arm 140 to be
It is configured so that it is not inhibited in the X ₁ direction (Figures 7 and 14). Next, the support plate 12
0 has an extension 120a, which entirely covers the guiding area for the anti-slip arm 140.

In contrast, according to other embodiments of the invention, it is possible to hold the support plate 120 rotatably on the base plate 130. In such an embodiment, the base plate 130 is locked by the rim screw 116 via the locking plate 150. Via a correspondingly designed guide, the support plate 120 can also be pivoted around the base plate 130. In such embodiments,
The anti-slip arm 140 is fixedly arranged on the support plate 120, so that the pivotability of the support plate 120 allows the position of the anti-slip arm 140 in contact with the tire 113 to be varied within a small range. becomes.

If the wheel or rim 11 is fixed to the brake drum via wheel bolts, the rim screw 116
has an internal thread at the end opposite the rim screw head 264, so that the fastening element for incorporating the anti-slip device 100 thus formed can be screwed by the wheel bolt. can be done.

The number of anti-slip arms 140 fixed to the support plate 120 depends on the size of the tire 13 equipped with the anti-slip device 100. In order to prevent the anti-slip arm 140 from breaking in the lateral direction, the support plate 120 has an arm-shaped extension 121 on which the anti-slip arm 140 is rotatably supported. This extension itself covers the anti-slip arm from the outside. The locking plate 150 is coupled to a tensioning mechanism 255,
Moreover, in the case where the locking action is performed by means of a rim screw, the locking plate 150 does not separate automatically from the locked position, but after releasing the tensioning mechanism, which can be configured as a push-button catch. They are joined together in such a way that they are separated for the first time (Figure 12). Advantageously, the locking plate 150 is constructed as a circular plate 250a, with tensioning mechanisms 255 in the peripheral area of the circular plate.
is disposed, and the locking plate 250a has a stopper 255a, and this stopper 255a
is adapted to cooperate with the tensioning mechanism 255.

[Brief explanation of drawings]

FIG. 1 is a partial sectional view of a motor vehicle wheel with anti-skid arms gripping the tire running surface; FIG. 3 and 4 are cross-sectional views showing two different embodiments of the anti-slip arm, FIG. 5 is a side view of the spike, FIG. 6 is a partial external view of the anti-slip device, and FIG. The figure is an enlarged cross-sectional view showing a non-slip arm fixed to be swingable on a support plate fixed by a rim screw and related parts.
The figure shows a front view of the base plate supported on the support plate with mating holes for the rim screw, FIG. 10 is a vertical sectional view taken along the line X-X in FIG. 8, FIG. 11 is a side view of the set rim screw, and FIG. 12 is a set pivoting view. 13 is a cross-sectional view taken along the diameter direction in FIG. 12, FIG. 14 is an inside front view of the anti-slip arm, and FIG. 15 is taken along the - line in FIG. 14. 16 is an external front view of the non-slip arm, FIG. 17 is an enlarged vertical sectional view of the free end of the non-slip arm, and FIG. 18 is a vertical sectional view of the non-slip arm mounted on the tire running surface. It is a plan view seen from above. 10... anti-slip device, 11... rim, 13...
... Tire, 14 ... Tire running surface, 17 ... Rim dent, 20 ... Cover plate, 25 ... Edge piece, 30 ... Tension plate, 40 ... Anti-slip arm, 45 ... Spikes, 43 ...Reinforced skeleton,
46...Hard metal core, 48...Gripping bridge, 4
9... Adhesive object, 100... Anti-slip device, 11
6...Rim screw, 117...Wheel play support shaft,
120... Support plate, 130... Base plate, 136... Hole, 140... Anti-slip arm,
145, 146...Spike, 147...Protrusion, 148...Material addition, 149...Reinforced skeleton, 150...Lock plate, 152...Arm, 153...Hole, 160...Coating plate,
250...Lock device, 260...Bolt-shaped main body, 262...Ring groove, 263...Shoulder-shaped portion,
264...Head-like part.

Claims (1)

[Claims] 1. Support plate 1 fixed to wheel rim 11
20, running surface area 1 of the tire at the swing end position
4 and pivotable about an axis parallel to the axle, the anti-skid arms 140 are equally spaced from each other and radially arranged, the anti-skid arms 140 having at their free ends pivotable about an axis parallel to the axle. carrying a grippable object or anti-slip spike 146;
In an anti-slip device for a motor vehicle wheel with pneumatic tires, in particular for use on ice or snow, a portion of each pre-curved anti-slip arm 140 has a material attachment 148 which increases its weight in its downwardly curved region 143b. is formed and the anti-slip arm is freely pivotably held in a defined area on a pivot 141, and a locking plate 150 is supported on the support plate 120 and 120 to the rim screw 116;
Each rim screw 116 has at its free end supporting the support plate 120 a ring groove 262 disposed above the support plate 120, and the locking plate 50 has a ring groove 262 on its outer side that supports the rim screw 120.
There are arms 152 disposed on a plane defined by sixteen ring grooves 262, the number of arms corresponding to the number of rim screws 116, and each arm 152 having one of each rim screw 116. ring groove 2
A fitting recess 15 having a diameter corresponding to the diameter of 62
3 is formed, and when the locking plate 150 is further rotated, the fitting recess 153 is inserted into the ring groove 262 of the rim screw 116, and the arm 1
52, that is, the locking plate 150 having a fitting recess 153 near the hole 136 formed in the support plate 120 for the rim screw 116, and the support plate 120 are simultaneously engaged, and each arm 152, that is, Lock plate 1
50 is adapted to be simultaneously supported by a shoulder 263 provided on the rim screw 116. 2. Each hole 136 of the support plate 120 for the rim screw 116 has a circular portion 136a having a diameter larger than the diameter of the rim screw 116.
and an elongated portion connected to the circular portion 136a, the diameter of the circular portion corresponding to the diameter of the rim screw 116 in the vicinity of the ring groove 262. The anti-slip device according to claim 1. 3 Support plate 1 for the rim screw 116
Each hole 136 of 42 is connected to the elongated rim screw 116.
Anti-slip according to claim 1, characterized in that it is configured as a slot with a diameter larger than the diameter of Device. 4. The locking plate 150 supported by the support plate 120 is covered by a cover plate 160 provided on the support plate 120, and the locking plate has a plurality of screws corresponding to the number of the rim screws 116. The anti-slip device according to any one of claims 1 to 3, characterized in that it has a hole. 5 The support plate 120 having the anti-slip arm 140 is configured in a ring shape, and the center opening thereof is supported by a guide member formed on the inner peripheral edge of the ring so as to be rotatable around the central axis. and a hole 136 for the rim screw 116
Claims 1 to 4 are closed by a base plate 130 having a
The anti-slip device according to any of the above.