KR200323574Y1 - nonskid apparatus for tire - Google Patents

Abstract

The non-slip device, which is installed to prevent the tire from slipping from the snowy road surface or the icy road, can be detachably fixed by one-touch method by using the clamp detachably fixed to the tire wheel.

The present invention is a housing formed of a lower cover and a through hole is formed in the center and a plurality of coupling grooves in the radial direction and the upper cover is formed in the center and fixed to the lower cover, and is slidably seated along the coupling groove A friction pad comprising a fixing piece formed on an upper surface of the tooth protrusion and a friction piece extending from the fixing piece and being in close contact with the ground surface of the tire, and a spiral groove corresponding to the tooth protrusion is formed in the circumferential direction on the bottom surface, and is rotated by a rotating means. A rotating member for sliding the friction pad in the radial direction during rotation, and a first fixing piece fixed to the tire wheel and a second fixing piece detachably fixed to the first fixing piece, and the housing first and second fixing pieces. It is provided with a clamp fixed in between.

Description

Nonskid apparatus for tire

The present invention relates to a tire anti-skid device that allows the tire to easily detach and attach a non-slip device that is mounted to prevent the tire from slipping from a snowy road or an icy road.

More specifically, the linear motion conversion mechanism in which the friction pad closely attached to the ground of the tire is movably coupled in a radial direction is detachably fixed in a one-touch manner using a clamp detachably fixed to the tire wheel to prevent the tire. The present invention relates to a tire anti-slip device that can prevent slippage.

In general, a tire anti-skid device is a safety device mounted on a tire to prevent the tire from slipping when driving on snowy roads or icy roads, and is arranged radially with respect to the tire ground plane. Snow chains consisting of a plurality of chains that are in close contact at equal intervals and two lines of wires that connect the two ends of the chains at the inner and outer surfaces of the tire, respectively, to be fixed in close contact with the ground plane are commonly used.

As shown in FIG. 1, the tire anti-slip device according to the prior art includes a plurality of friction members 3 arranged in a radial direction with respect to the ground plane 2 of the tire 1, and a friction member 3. Each end of the) is fixed at regular intervals, and a joint means 6 is provided to detachably connect both ends, and is composed of two rows of wires 4 and 5 having a length shorter than the circumference of the tire 1. It is attached to the tire 1 as follows.

The friction members 3 are laid on the front ground in front of the tire 1 in the longitudinal direction such that the tires 1 are arranged in a forward direction, and then the vehicle is moved so that the tire 1 rises above the friction member 3. . When both ends of the wires 4 and 5 positioned inside and outside the tire 1 are connected to each other to form a closed curve, the friction members 3 are centered on the tire 1 by the wires 4 and 5. As it is pulled toward the side, it is fixed in close contact with the ground plane 2 of the tire 1.

In the above-described tire anti-skid device, since friction members 3 having contact areas according to widths are fixed in a state of being in close contact with the ground plane 2 of the tire 1, the amount of vibration and noise generated in the vehicle body due to driving is small. Compared with metal chains, the riding comfort is relatively low.

On the other hand, the above-described tire anti-skid device is in close contact with the ground plane 2 in a loose state depending only on the tensile force caused by the hoop stress of the wires 4 and 5 which have no tightening margin because the friction member 3 is not elastic. Therefore, the sliding effect is reduced by the friction member 3 when driving the ice road, etc., has a problem of causing extreme friction noise.

In addition, the conventional tire anti-slip device is manufactured for each size in consideration of the size (referring to the diameter) of the tire, and is provided to the consumer, so if the tire size is changed due to the reason for changing the vehicle tire slip prevention device Since the need to repurchase, consumers will have a problem with the double height of the purchase of the vehicle and the anti-skid device.

In addition, in the event of sudden snowfall during driving or on a icy road, in order to mount the tire anti-skid device on the tire, the vehicle is stopped on one side of the road and the anti-skid device is not easy to install on the tire. When driving the ice road in a state of avoiding the installation of the anti-slip device has a problem that causes a traffic accident, such as a contact accident due to the sliding of the tire.

In view of this, a technical content of allowing the anti-skid device to be mounted on the tire while the vehicle is stopped is schematically shown in FIG. 2.

The aforementioned tire anti-skid device includes a wire (not shown) that is detachably connected to the inside of the tire 10 by a joint means, and one end is fixed to the wire at equal intervals, and the ground surface 12 of the tire 10 is fixed. Moment due to the rotation of the friction pad 24 arranged in close contact with the tire 10 and the rotation part 122 disposed at the center of the tire 10 is converted into a tensile force in the radial direction through the traction rack 140 arranged in the "+" direction Linear motion conversion mechanism 100 to be transmitted to the other end of the friction pad 24, and both ends are fixed to the other end of the friction pad 24, the pull bar is attached to the middle side detachably connected to the end of the traction rack (140) 22).

Therefore, after the wires are connected inside the tire 12 described above, the traction rack 140 which moves linearly as the rotary part 122 formed in the center of the linear motion conversion mechanism 100 rotates is connected to the tire 10. Moving toward the center, the friction pad 24 is in close contact with the ground surface 12 by the pull bar 22 fixed to the end of the traction rack 140 to prevent the tire from slipping.

However, since the tire anti-slip device connects the connecting means of the wire in the inside of the tire 10 in a circular manner, the operation of installing the anti-slip device on the tire on the snowy road is not easy for the disabled and the elderly, so it is not slippery. When driving on an icy road without mounting the device, there is a problem that may result in a traffic accident.

In addition, when the rotary part 122 of the linear motion conversion mechanism 100 is rotated to pull the drag rack 140 toward the center of the tire 10 to bring the friction pad 24 into close contact with the ground plane 12, Since the stress is concentrated on the connection between the 22 and the friction pad 24, and the connection part is cut or damaged during driving, the friction pad 24 is separated from the ground surface 12, causing a safety accident. Has the problem.

In addition, since the above-described friction pad 24 and the traction rack 140, etc. are manufactured for each size in consideration of the size of the tire and are provided to the consumers, there is a problem in that a tire slipper must be purchased separately whenever the vehicle model is changed. .

An object of the present invention is to provide a tire anti-skid device that can be easily mounted to the tire in one-touch way even on snowy roads to provide convenience for the novice driver, the elderly and the disabled. .

Another object of the present invention is to provide a tire anti-skid device, which allows the friction pad to be narrowed or extended in the radial direction of the tire according to the size of the tire (referring to the diameter) so that it can be selectively mounted and used on various tires. It is.

Another object of the present invention is to install a non-slip device in a short time after stopping the vehicle on the road surface, such as to protect the vehicle and the occupant from traffic accidents caused by slipping of other vehicles running when the vehicle is stopped. It is to provide a tire anti-skid device.

Still another object of the present invention is to prevent the stress pad from being broken due to breakage of the friction pad during driving by preventing the stress pad from being concentrated at the connection portion of the friction pad and the linear motion conversion mechanism when the friction pad is fixed to the ground surface. It is to provide a tire skid prevention device.

1 is a schematic view of a tire anti-skid device according to the prior art,

2 is a schematic view of another tire anti-skid device according to the prior art,

3 is an exploded perspective view of a tire anti-slip device according to the present invention,

4 is a perspective view of the tire anti-skid device according to the present invention mounted on the tire,

5 is a front view of the tire anti-skid device according to the present invention,

6 is a front view of a state in which the upper cover is separated from the tire slip prevention device according to the present invention,

7 is a state of use of the tire anti-slip device according to the present invention,

8 is an essential part excerpt sectional view of the tire anti-slip device according to the present invention,

9 is a view showing the rotation of the friction pad of the tire anti-skid device according to the present invention,

10 is a modified example of the cap detachably mounted in the tire anti-slip device according to the present invention,

11 is a modified example of the tire anti-skid device according to the present invention,

12 is another modified example of the tire anti-slip device according to the present invention.

* Explanation of symbols used in the main part of the drawing

200; Through

202; Lower cover

204; Top cover

206; Protrusion

208; Friction piece

210; Spiral groove

212; 1st fixed flight

214; clamp

216; Joining piece

218; spike

220; Dolly

222; Axis of rotation

224; cap

An object of the present invention described above, the housing is composed of a lower cover is formed in the center and a plurality of coupling grooves in the radial direction, the housing is formed in the center and the upper cover is fixed to the lower cover, the coupling groove A friction pad which is slidably seated and has a toothed protrusion formed on an upper surface thereof, and a friction piece that extends to the fixing piece and is in close contact with the ground surface of the tire;

A spiral groove corresponding to the toothed protrusion is formed in a circumferential direction on a bottom surface thereof, and includes a rotating member for sliding the friction pad in a radial direction during rotation by a rotating means, a first fixing piece fixed to a tire wheel; It is achieved by providing a tire anti-slip device, comprising a second fixing piece detachably fixed to the first fixing piece, and having a clamp for crimping and fixing the housing between the first and second fixing pieces. do.

An object of the present invention described above, the housing is composed of a lower cover is formed in the center and a plurality of coupling grooves in the radial direction, the housing is formed in the center and the upper cover is fixed to the lower cover, the coupling groove A friction pad comprising a fixing piece which is slidably seated along with the friction piece, which is extended to the fixing piece and is in close contact with the ground surface of the tire;

A plurality of air installed in each of the coupling groove of the lower cover is connected in parallel through a hose, and is contracted and driven when supplied with air pressure to pull the friction pad toward the center so that the friction piece of the friction pad is in close contact with the ground surface of the tire. A cylinder, a first fixing piece fixed to the tire wheel, and a second fixing piece detachably fixed to the first fixing piece, and the housing in which the friction pad is fixed is disposed between the first and second fixing pieces. It is achieved by providing a tire anti-skid device, characterized in that it comprises a clamp for pressing.

An object of the present invention described above, the housing is composed of a lower cover is formed in the center and a plurality of coupling grooves in the radial direction, the upper cover is formed in the center and fixed to the lower cover, the coupling groove of the The second uneven portion corresponding to the first uneven portion formed on the left and right inner side is formed on the left and right outer side surface and is fixed to the radially moved along the coupling groove, extending to the fixing piece and in close contact with the ground surface of the tire A friction pad made of a friction piece,

Fixing member for pressing the fixing piece toward the center of the housing so that the friction piece of the friction pad is in close contact with the tire ground surface, and then annularly traps the locking jaw formed in the fixing piece to prevent the friction pad from being separated due to flow during driving. And a first fixing piece fixed to the tire wheel, and a second fixing piece detachably fixed to the first fixing piece, and the housing having the friction pad fixed thereto is compressed between the first and second fixing pieces. It is achieved by providing a tire anti-skid device, characterized in that it comprises a clamp for fixing.

According to a preferred embodiment, the friction pad is formed on the friction pad so as to be rotated within the angle range of the expansion portion formed on the left and right sides of the inlet of the coupling groove, and the friction piece of the friction pad contacts the ground when the housing in which the friction pad is coupled is mounted on the tire. If it is provided with an angle compensation means for rotating the friction pad coupled to the coupling groove to the left and right within a predetermined angle range.

In addition, the friction pad, by the mutual teeth coupling of the toothed protrusion formed on the upper surface of the fixing piece and the spiral groove formed on the bottom surface of the rotating member by sliding radially along the coupling groove when the rotating member rotates in accordance with the size of the tire Can be adjusted.

In addition, the extension is formed in at least one of the coupling groove.

The friction pad may further include a through hole formed in the fixing piece, a coupling piece coupled to the through hole, and an extension piece extending in the circumferential direction in the through hole and extending in the friction piece when the friction pad is rotated. It comprises an arc-shaped space portion for receiving the.

In addition, the friction piece of the friction pad is formed in the center in the outward direction to improve the adhesion of the tire ground surface to the ground, a plurality of spikes on the bottom surface to increase the grip with the ground to prevent the slip of the tire Is formed.

The rotating means may include a first gear formed at an inner circumference of the rotating member, a driving gear meshed with the first gear and rotating the rotating member during rotation, and a through-hole formed in the center of the driving gear. It is rotatably coupled by a bearing mounted to the, and the groove is provided with a rotating shaft formed in the center of the groove is detachably fixed to the dolly for rotating the drive gear.

In addition, the dolly is formed on the lower end corresponding to the groove and the rotating piece for rotating the drive gear when rotated, and is formed on the top of the dolly is formed to include a cap to prevent foreign matter from entering the inside of the housing.

In addition, it is provided with a cap detachably coupled to the groove formed in the upper cover above the rotation axis to prevent foreign matter from entering the inside of the housing.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to describe in detail enough to be able to easily carry out the invention by those skilled in the art to which the present invention belongs. This does not mean that the technical spirit and scope of the present invention is limited.

As shown in Figure 3 to 10, the tire anti-skid device according to the present invention, the through-hole 200 is formed in the center and the lower cover 202, the plurality of coupling grooves 201 is formed in the radial direction, and through A housing 205 formed as an upper cover 204 formed at the center and fixed to the lower cover 202 and 203 is formed to be slidably moved along the coupling groove 201 and the toothed protrusion 206 is disposed on the upper surface. A friction pad 209 formed of a fixed piece 207 formed thereon, and a friction piece 208 extending from the fixed piece 207 and being in close contact with the ground surface of the tire T;

A helical groove 210 corresponding to the above-described toothed protrusion 206 is formed in the circumferential direction on the bottom surface, and a rotating member 211 for sliding the friction pad 209 in a radial direction during rotation by the rotating means; The first fixing piece 212 fixed to the tire wheel 226 by the fastening member S, and the second fixing piece 213 detachably fixed to the first fixing piece 212, the housing ( And a clamp 214 for crimping and fixing 205 between the first and second fixing pieces 212 and 213.

At this time, the housing is formed on the friction pad 209 to be rotated within the angle range of the expansion portion 201a formed on the left and right sides of the at least one engaging groove 201, the friction pad 209 is coupled When the friction piece 208 of the friction pad 209 comes into contact with the ground when the 205 is mounted on the tire T, the friction pad 209 coupled to the coupling groove 201 is rotated to the left and right within a predetermined angle range. And an angle compensating means.

In addition, the aforementioned friction pad 209 has a through hole 215 formed in the above-described fixing piece 207, a coupling piece 216 coupled to the through hole 215, and a circumferential direction in the through hole 215. And an arc-shaped space portion 217 that receives the extension piece 208a that is extended to the friction piece 208 when the friction pad 209 rotates.

In addition, the friction piece 208 of the above-described friction pad 209 is formed in the center is cut outward to improve the adhesion of the tire (T) ground surface to the ground, the tire (T) by increasing the ground force with the ground A plurality of spikes 218 are formed on the bottom surface to prevent slippage of the < RTI ID = 0.0 >

In addition, the above-described rotating means may include a first gear 211a formed at the inner circumference of the rotating member 211 and a drive gear 219 that is engaged with the first gear 211a and rotates the rotating member 211 during rotation. Is formed in the center of the drive gear 219 is rotatably coupled by a bearing (B) mounted on the lower cover 202, the groove to which the dolly 220 for rotating the drive gear 219 is detachably fixed 221 has a rotating shaft 222 formed in the center.

In addition, the above-described dolly 220 is formed at the lower end corresponding to the above-described groove 221 and the rotating piece 223 for rotating the drive gear 219 during rotation, and extends formed on the top of the dolly 220, the housing ( 205 includes a cap 224 to prevent foreign matter from entering the inside.

In the figure 225 is a cap detachably coupled to the groove 204a formed in the upper cover 204 above the rotating shaft 222 to prevent foreign matter from entering the housing 205, 226 is a tire wheel.

Hereinafter, the operation of the tire anti-slip device according to the present invention will be described in more detail with reference to the accompanying drawings.

After stopping the car when driving on a garage, snowy road surface or ice road, the disabled and novice drivers can easily and easily install the tire slipper according to the present invention in a one-touch manner with respect to the tire T.

The clamp 224 fastened to the aforementioned tire wheel 226 is separated. That is, the second fixing piece 213 detachably coupled to the first fixing piece 212 fixed by the fastening member S to the tire wheel 226 is separated. At this time, the detachment process of the clamp 224 is a technical content used in the art, so the detailed description thereof will be omitted below.

4, 7 and 8, the first fixing piece 212 includes a lower cover 202 that forms a housing 205 in which the aforementioned friction pad 209 is slidably coupled in a radial direction. ), The bearing protrusion 213b is formed through the through holes 203 and 200 formed in the upper cover 204 and the lower cover 202 by using the handle 213a of the second fixing piece 213, respectively. The clamp 214 is fastened by rotating through the through hole 212a of the fixing piece 212.

As described above, the housing 205 is fixed between the first fixing piece 212 and the second fixing piece 213 of the clamp 214 fastened as described above. At this time, the friction pad 209 mounted on the housing 205 to be in close contact with the ground plane of the tire T is coupled to be slightly larger than the diameter of the tire T.

On the other hand, as shown in Figure 5, through the groove 204a formed on one side of the upper surface of the above-described upper cover 204 refers to the turner 220 ("L" wrench, etc.) in the groove 211 of the drive gear 219. By repeating and rotating in one direction (referring to the left or right direction), the drive gear 219 rotatably supported on the lower cover 202 by the bearing B rotates, and the drive gear rotates. The rotating member 211 meshed with the 219 rotates in the same direction as the driving gear 219.

On the other hand, as shown in Figure 10, the rotary piece 223 is inserted into the groove 211 of the drive gear 219 through the groove 204a of the upper cover 204 as the above-described dolly 220 is lower side. Is formed in, and formed in a cone shape can be rotated the drive gear 219 using the cap 224 to serve as a handle.

5 and 6, according to the rotation of the rotating member 211 described above, the friction pad 209 may correspond to the spiral groove 210 formed in the circumferential direction on the bottom surface of the rotating member 211. Due to mutual engagement of the toothed protrusions 206 formed on the upper surface of the fixing piece 207, the friction pad 209 slides toward the center of the housing 205 along the engaging groove 201 formed radially in the lower cover 202. Will move. That is, the inner surface of the friction piece 208 of the friction pad 209 is in close contact with the ground surface of the tire T.

On the other hand, when the anti-skid device is mounted on the tire wheel 226 when the friction pad 205 described above is positioned in contact with the ground and is subjected to interference, the tire cover 202 is radially formed in the aforementioned lower cover 202. Among the coupling grooves 201, the friction pad 205 may be rotated to the left and right sides within an angle range of the expansion part 201a formed at the left and right sides of the inlet of the at least one coupling groove 201.

In more detail, as shown in FIG. 9, when the friction piece 208 of the friction pad 205 described above is rotated in the left or right direction, the fixing piece 207 of the friction pad 205 is formed. The coupling piece 216 is coupled to the through hole 215, and the extension piece 208a extended to the friction piece 208 of the friction pad 205 that is tightly fitted to the coupling piece 216 is a through hole 215. As it rotates in the space portion 217 extending in the circumferential direction on the upper side (shown as a virtual line), the friction pad 205 is rotated within the angle range of the expansion portion 201a to avoid the interference of the ground. It is possible to attach the tire slipper to the tire T.

Therefore, the tire T slips on the road surface or the ice road where the snow falls due to the spike 218 formed on the bottom surface of the friction piece 208 of the friction pad 209 which is in close contact with the ground surface of the tire T described above. It is possible to drive safely by preventing it. At this time, as the friction piece 208 is cut outwardly, it is a matter of course that the adhesion of the tire T ground surface to the ground can be improved.

In addition, since the aforementioned friction pad 209 is slidably moved along the coupling groove 201 of the lower cover 202 to be fixed to the tire wheel 226 while being in close contact with the ground surface of the tire T, According to the tire size T, the difficulty of separately purchasing a tire anti-slip device is eliminated. That is, of course, it is possible to selectively use the amount of movement of the friction pad 209 according to the size of the tire (T).

On the other hand, since the above-described process of separating the tire slipper from the tire T is performed in the reverse order of mounting it, detailed description thereof will be omitted.

On the other hand, Figure 11 is a tire anti-slip device according to another embodiment of the present invention, it is a view showing a sliding movement by using an air cylinder driven when the friction pad is supplied with air pressure.

As shown, the lower cover 202 is formed in the center 200 and the coupling groove 201 is formed in the radial direction, and the through hole 203 is formed in the center and is fixed to the lower cover 202 A housing 205 consisting of an upper cover 204, a fixed piece 207 slidably mounted along the coupling groove 201, and a friction extending to the fixed piece 207 and closely contacted with the ground plane of the tire. A friction pad 209 composed of a piece 208,

Installed in each of the coupling grooves 201 of the lower cover 202 described above are connected in parallel through the hose 300, and is contracted and driven when supplied with air pressure so that the friction piece 208 of the friction pad 209 is a tire (T) A plurality of air cylinders 301 for pulling and fixing the friction pad 209 toward the center so as to be in close contact with the ground surface thereof, a first fixing piece 212 fixed to the tire wheel 226, and a first fixing piece 212. The second fixing piece 213 is detachably fixed to the (), and the clamp 214 for crimping and fixing the housing 205, the friction pad 209 is fixed between the first and second fixing pieces (212, 213) Equipped.

Accordingly, the friction pad 209 seated in the coupling groove 201 formed in the radial direction in the lower cover 202 is fixed by using the air cylinder 301 driven when the air pressure is supplied through the aforementioned hose 300. By doing so, it is possible to easily install the non-slip device for the tire T in the winter outdoors in a short time.

At this time, the friction pad made of a fixed piece 207 which is seated to be slidably movable in the radial direction to the coupling groove 201 of the lower cover 202 and the friction piece 208 in close contact with the ground surface of the tire (T). 209 and the inner side of the coupling groove 201 of the lower cover 202 described above are contracted and driven when supplied with air pressure through the hose 300 so that the friction pieces 208 of the friction pad 209 are tires (T). Except for the air cylinder 301 to be pulled toward the center of the housing 205 to be in close contact with the ground plane of the) is substantially the same as the tire anti-slip device according to an embodiment of the present invention, detailed description thereof will be omitted. And, it is to be noted that the overlapping reference numerals are the same.

On the other hand, Figure 12 is a tire anti-slip device according to another embodiment of the present invention, a view showing a sliding sliding friction pad by the user.

As shown, the lower cover 202 is formed in the center 200 and the coupling groove 201 is formed in the radial direction, and the through hole 203 is formed in the center and is fixed to the lower cover 202 The housing 205 formed of the upper cover 204 and the second uneven portion 402 corresponding to the first uneven portion 401 formed on the left and right inner surfaces of the coupling groove 201 are formed on the left and right outer surfaces so that the coupling groove is formed. A friction pad 209 consisting of a fixed piece 207 moving radially along the 201, a friction piece 208 extending from the fixed piece 207 and being in close contact with the ground plane of the tire T;

After pressing the fixing piece 207 toward the center of the housing 205 such that the friction piece 208 of the friction pad 209 is in close contact with the ground plane of the tire T, the friction pad 209 due to flow during driving. A fixing member 403 for annularly enclosing the locking jaw 207c formed in the fixing piece 207, a first fixing piece 212 fixed to the tire wheel 226, and a first fixing member to prevent the detachment of the fixing piece 207. The second fixing piece 213 detachably fixed to the piece 212, the clamp for clamping the housing 205, the friction pad 209 is fixed between the first and second fixing pieces (212, 213) ( 214).

Therefore, the first uneven portion 401 formed on the inner surface of the coupling groove 201 radially formed on the lower cover 202 described above and the second formed on the fixing piece 207 of the friction pad 209 to correspond thereto. As the uneven parts 402 are unevenly coupled to each other, the fixing piece 207 is pressed into the coupling groove 201 so that the friction piece 208 of the friction pad 209 comes into close contact with the ground plane of the tire T. In the case of using the fixing member 403 made of a wire or the like to the locking projection 207c formed in the fixing piece 207 inside, after combining the upper cover 204 to the lower cover 202 described above As the second fixing piece 213 is coupled to the first fixing piece 212 fixed to the tare wheel 226, the tire slip preventing device can be easily installed on the tire wheel 226.

At this time, the first uneven portion 401 formed on the inner surface of the coupling groove 201 formed in the lower cover 202 and the second uneven portion formed on the fixing piece 207 of the friction pad 209 correspondingly. Except for the 402 and the fixing member 403 which encloses the catching jaw 207c formed on the inner surface of the fixing piece 207 and prevents it from being separated due to the flow of the friction pad 209, one embodiment of the present invention Since it is substantially the same as the tire anti-slip device according to the example, the detailed description thereof will be omitted, and the duplicate reference numerals will be found to be the same.

As described above, the tire slip prevention device according to the present invention has the following advantages.

Depending on the tire size, the friction pad can be narrowed or extended in the radial direction of the tire, so that it is possible to solve the economic difficulty of purchasing a plurality of anti-skid devices according to the vehicle type by selectively installing and using the tire in various types of tires. Will be.

Even on snowy roads, the anti-skid device can be easily mounted on the tires in one-touch way to provide convenience for the novice driver, the elderly and the disabled, thus ensuring the reliability of the product.

In addition, after stopping the vehicle on the road surface, such as a non-slip device can be mounted in a short time to protect the vehicle and the occupant from traffic accidents caused by the slip of other vehicles running when the vehicle is stopped.

In addition, when the friction pad is fixed to be in close contact with the ground surface, the stress pad is prevented from being concentrated at the connection portion between the friction pad and the linear motion conversion mechanism, thereby preventing the friction pad from being separated due to breakage of the friction pad during driving.

Claims (11)

A housing including a lower cover having a through hole formed in the center and a plurality of coupling grooves formed in a radial direction, and an upper cover having a through hole formed in the center and fixed to the lower cover; A friction pad which is slidably movable along the coupling groove and has a toothed protrusion formed on an upper surface thereof, and a friction piece extending on the fixing piece and being in close contact with the ground surface of the tire; A helical groove corresponding to the toothed protrusion is formed in a circumferential direction on a bottom surface thereof and rotates the friction pad in a radial direction during rotation by a rotation means; And And a first fixing piece fixed to the tire wheel, and a second fixing piece detachably fixed to the first fixing piece, and having a clamp for crimping and fixing the housing between the first and second fixing pieces. A tire slipper characterized by the above-mentioned. According to claim 1, wherein the friction pad is formed on the friction pad so as to be rotated within the angle range of the expansion portion formed on the left and right sides of the engaging groove, the friction piece of the friction pad when the housing to which the friction pad is coupled to the tire And an angle compensating means for rotating the friction pad coupled to the coupling groove to the left and right in a predetermined angle range when contacted with the ground. The friction piece of claim 1 or 2, wherein the friction piece of the friction pad has a center cut outward to improve the adhesion of the tire contact surface to the ground, and prevents the tire from slipping by increasing the grip with the ground. Tire anti-skid device, characterized in that a plurality of spikes are formed on the bottom surface. The tire skid prevention device according to claim 2, wherein the expansion part is formed in at least one or more of the coupling grooves. The method of claim 2, wherein the friction pad; A through hole formed in the fixing piece; A coupling piece coupled to the through hole; And And an arc-shaped space portion extending in the circumferential direction in the through hole and accommodating an extension piece extending in the friction piece when the friction pad is rotated. According to claim 1, The rotating means; A first gear formed at an inner circumference of the rotating member; A driving gear meshed with the first gear to rotate the rotating member when rotating; And A tire having a rotating shaft formed in the center thereof, the groove being formed in the center of the drive gear and rotatably coupled by a bearing mounted to the lower cover, and the groove in which the dolly for rotating the drive gear is detachably coupled; Anti-skid device. The method of claim 6, wherein the twirl; A rotating piece formed at a lower end corresponding to the groove to rotate the driving gear when rotating; And The anti-skid device, characterized in that formed on the top of the dolly to include a cap to prevent foreign matter from entering the interior of the housing. The tire slip prevention device of claim 6, further comprising a cap detachably coupled to a recess formed in the upper cover above the rotation shaft to prevent foreign substances from entering the interior of the housing. A housing including a lower cover having a through hole formed in the center and a plurality of coupling grooves formed in a radial direction, and an upper cover having a through hole formed in the center and fixed to the lower cover; A friction pad including a fixing piece slidingly seated along the coupling groove and a friction piece extending from the fixing piece and being in close contact with the ground surface of the tire; A plurality of air installed in each of the coupling groove of the lower cover is connected in parallel through a hose, and is contracted and driven when supplied with air pressure to pull the friction pad toward the center so that the friction piece of the friction pad is in close contact with the ground surface of the tire. cylinder; And A first fixing piece fixed to a tire wheel and a second fixing piece detachably fixed to the first fixing piece, and the housing fixed to the friction pad is fixed between the first and second fixing pieces. A tire anti-slip device, comprising a clamp. A housing including a lower cover having a through hole formed in the center and a plurality of coupling grooves formed in a radial direction, and an upper cover having a through hole formed in the center and fixed to the lower cover; A second uneven portion corresponding to the first uneven portion formed on the left and right inner surfaces of the coupling groove is formed on the left and right outer surfaces thereof and is fixed to the radially moving along the coupling groove; Friction pad made of a friction piece in close contact with the surface; Fixing member for pressing the fixing piece toward the center of the housing so that the friction piece of the friction pad is in close contact with the tire ground surface, and then annularly traps the locking jaw formed in the fixing piece to prevent the friction pad from being separated due to flow during driving. ; And A first fixing piece fixed to a tire wheel and a second fixing piece detachably fixed to the first fixing piece, and the housing fixed to the friction pad is fixed between the first and second fixing pieces. A tire anti-slip device, comprising a clamp. The method of claim 1, wherein the friction pad is a sliding movement in the radial direction along the coupling groove during rotation of the rotating member by the mutual tooth coupling of the toothed protrusion formed on the upper surface of the fixing piece and the spiral groove formed on the bottom surface of the rotating member. Tire anti-skid device, characterized in that the length can be adjusted according to the size of the tire.