HU231382B1 - Anti-slip accessory for footwear, especally in case of unexpected slippery road conditions - Google Patents

Description

Anti-slip accessory for footwear, especially in case of unexpected slippery road conditions

The subject of the invention is an anti-slip accessory for unexpectedly slippery footwear, in both right- and left-handed designs, which can be placed on footwear of any size and shape, and can be brought to its anti-slip condition in a simple, quick way that does not require much effort, from its standby state, which is space-saving, portable, sharp, pointed parts was provided with a protective casing against The criterion of unexpectedness requires that the state of readiness is an integral part of the invention. The intertwined satisfaction of the two conditions is a condition for the effectiveness of the tangible asset.

During the winter, road conditions can change capriciously, in the event of a sudden sleet, the various colored official warnings no longer help those on the road, institutional anti-slippery measures are powerless, only individual care is effective, but so far many skid-slip accidents have occurred in order to avoid unexpected emergency situations. despite many tools, as they:

1. they are not small enough to always be at hand during the critical period and then on your feet

2. cannot be carried safely, even in a pocket (sharp parts cannot cause injury)

3. if they are small and do not have automatic cleaning, they clog easily and become dangerous

4. they are difficult to put on, because the strapping must be able to absorb the forces that occur

5. the characteristics of the footwear can influence the selection of a suitable device (size, method of fixation)

From CN107981478A, a hard sole plate located under the sole of the shoe can be identified, from which there are spike/nail-like protrusions made of hard plastic or stainless steel on the side opposite to the sole of the shoe, which e.g. by penetrating the ice, they form a shape lock and thus ensure the exclusion of displacement relative to each other, unaffected by lubrication (snow, ice, slush). Its production technology is indicated by the cross-section of the base plate, according to which the base plate is a die-casting, which is a relatively expensive way of creating spike-like protrusions made of the same material as the base plate. Snow and ice can get stuck between the rigid spikes, as a result of which the penetration of the spikes into the ice - i.e. the shape lock with it - ceases, and the device can become counterproductive. The resulting forces stress the strapping, so it is difficult to fasten it to footwear of different shapes and sizes - and since it can be "lubricated" with snow and ice - the footwear can even slip out of it. Although the pair of devices is small, it would be necessary to keep the sharp/pointed parts in a safe place in order to be constantly ready for the person concerned during the critical period, for unexpected use.

The same problems can also occur with the DE202007000316U1, which, despite its small size, was also designed to be carried in a pocket, for the safe handling of unexpected slippery road sections, the "black killer", but where the protrusions are even smaller and cannot be defined as spikes (see below), with the sanding cloth until clogging, only scratching and not shape lock can be achieved (between the sanding cloth and the piece to be sanded in the case of its original intended use, i.e. sanding, there is a relative displacement along the plane of the cloth, which would turn out the spike-like grain {penetration, shape lock is not the purpose of the sanding cloth}, and the obtuse-angled grain when anti-skid, it cannot penetrate to form a shape lock). There is no automatic cleaning to prevent clogging between the abrasive grains. The rubber strap placed over the shoe is loaded by the force that occurs, so it must be applied accordingly when putting it on, which makes its use and size more difficult, and thus increases the amount of a foreign material. Carrying the device pair, which according to the figure is right and left - marked in the ready state in a trouser pocket without a case, can even cause damage with the rough sanding cloth, the prevention of which is not covered in the description.

The scope of the anti-skid device according to US20130042503A1 does not aim to always be at hand in the event of unexpected slippery road conditions, much less to have a pair in a case ready with the person concerned, but rather in the scope of occupation ("postal and parcel delivery, η 1/6

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Ö66CCE baggage handling, road repair, ambulance and emergency work, police work, and any outdoor work"), he intends to use it for sports ("runners, joggers, exercise outdoors"). In this case, the accessory of the activity is the anti-slip, which they take with them as planned, so its size - as it is an active tool in use - does not represent a particular burden. The injection-molded part corresponding to the soleplate under the sole/heel of the footwear is basically flat ("the HTA comprising: a gripping pad that is substantially flat"), on the side facing the pavement the inserted spikes/spikes protrude, which, penetrating the pavement, eliminate the relative displacement with a shape lock yes. The injection-molded section has a roughened surface to increase friction ("gripping pad 14 that has been provided a roughened or textured surface"), but roughening the surface only increases the friction factor, which on the other hand is strongly reduced by icy, snowy, and watery environments, so the "help instead of "prevent slipping", the transmission of power must be carried out by the robust belting. The "textured surface" practically means that only the roughness of the surface has a specific pattern - as it was previously marked as basically flat - so if the surface roughness pattern had any significance compared to the irregular roughened surface, it should have been precisely defined for the specialist , in the absence of this, of course, the surface roughening can be done with any pattern, the surface roughness does not form a shape lock penetrating like a spike, and the friction factor does not change significantly. It does not create a shape lock on the sole side of the footwear, as it not only states: "the HTA comprising: a gripping pad that is substantially flat" but also that "a material of HTA 10 can be a durable "elastic material that is tough, light-weight and flexible even in temperatures below 0.degree. F. The term elastic material as described includes natural and synthetic polymers, including rubbers and reinforced rubbers, and other suitable materials". Therefore, its size, shape or material are not suitable for creating a shape lock, because it is not hard, but flexible, it is strapped! is injection molded together. It would be absurd and degrading to assume a shape lock also because the device has a barefoot application (Textured area is adapted to contact an underside of a human heel). In addition, it would be pointless for a device designed for regular, professional use to use the sole of the shoe as much as walking on a macadam road, as it is equipped with robust straps. Although with the adjustable straps you plan to supply several shoe sizes with one device, a minimum HTA size range is still required for an organization that serves several people. ("Further, a device that is versatile and works with many size shoes or footsizes is desirable so that a user, especially an organization that serves multiple persons, may stock a minimal number.") So the principle is not suitable for all shoe sizes and to create a universal tool suitable for training.

On the other hand, the form-locking, non-slip connection with the pavement is ensured by the "spikes" placed in the injection-molded section 14 ("Spikes of a traction device, in turn, could be made of any durable material that resists wear and maintains a sharp point: for instance-tungsten carbide, stainless steel, or even spark-resistant copper for an application in which HTA is used around flammable materials (e.g., gasoline, oil, grease, chemicals, food service grease/oil, etc."). it would have created a shape lock by inserting a smaller "spike" if it had only aimed to prevent emergency situations without robust strapping. However, according to the above five characteristics, the HTA is not suitable for making walking on icy and slippery road conditions that occur unexpectedly in places safe for all concerned , since that was not the motive for its creation in the first place.

The objective of the present invention is to eliminate the above deficiencies, it can be easily applied to all footwear, regardless of size or training, in the case of unexpected icy and slippery road conditions, and with due attention it can be safely used even in sleet, during the critical winter period thanks to its small size, it can even be carried in a pocket when ready creating an available non-sticking anti-skid, because its n 2/6 w ro

The lack of an accident prevention device M affects everyone in an emergency situation, when every step can be fatal in the event of a sudden sleet.

The invention relieves the shortcomings by the fact that when placed on the footwear, it has a sole plate located under the sole of the shoe and equipped with larger hard spike-like protrusions directed towards the road, which has smaller spike-like protrusions on the side facing the sole of the shoe, but which essentially correspond to the larger spike-like protrusions in terms of strength, while the on the other side, between the larger spike-like protrusions, there is a pull-off surface, which is flexibly connected to the soleplate attached to the flexible rubber band across the toe of the footwear.

The thorn-likeness means the similarity in shape and strength of the artificially produced thorn with the plant thorn (A thorn: a hard, pointed, prickly formation on a plant, plant stem, leaf, fruit; https://mek.oszk.hu/adatbazis/magyar- language-ertemmeszotara/kereses.php?kereses=T%C3%BCske ). The prickly indicator in the technical imitation corresponds to the penetration ability, i.e. the hardness and the acute angle of the contours forming the tip, which in this case is important for the formation of the shape lock.

The hard sole plate on the road side is defined by spikes/nail-like protrusions of the same material as the sole plate (e.g. CN107981478A), but analogously on the side of the sole of the foot, prominent, hard spike-like protrusions preferably of the same material as the base plate result in a fundamentally new, simpler anti-slip design . In this way, a shape lock is created not only with the road surface, as with the drilling of the hard spike-like protrusions already known in previous devices, but also with the sole of the shoe, so that the active and reaction forces that occur when stepping take the shortest route - in the sole plate approx. within 1mm - they keep balance; the size of the device is minimized, it can even be kept ready in a pocket when it is cased. The smaller spike-like protrusions on the side of the sole of the shoe - just like the larger ones on the other side, e.g. they provide a shape lock with the ice by penetrating it with the soles of winter thick-soled footwear and ensure an evenly distributed power transfer, excluding relative displacement, but not using the sole of the footwear as much as walking on a macadam road, where the crushed stone edges come into contact with the sole in a different place with each step.

The thorn-like protrusions on both sides of the soleplate provide anti-slip protection based on a completely new principle, adapted to make walking on icy and slippery road conditions that occur unexpectedly in places, especially safe. While the ones up to now have transmitted the awakening forces by attaching and strapping them to the footwear, like "winter spiky overshoes", the spike-like protrusions in the sole direction transform the road surface into spikes, and the awakening forces keep balance in the sole plate, so when the foot is on the pavement, it does not need to be attached to the footwear, in contrast to previous solutions, where a robust alien substance was incorporated into the chain of awakening forces (US20130042503A1). The foot can be stabilized - just like in normal road conditions - with the sole of the shoe. When the foot is raised, the "road surface" of a few grams - and the layer that may have stuck to it until it falls - must be held by the strap, even a rubber film, so that the "road surface" continues. In addition, footwear of all sizes and shapes can be "on the road" just like in normal road conditions, thanks to the universality of the device. The rubber film strap e.g. in the case of so-called natural rubber, it is capable of 600% elongation, which ensures approx. newtons of force. According to the principle, in addition to maintaining the same natural material use and safety, the size and cost of the anti-slip e.g. compared to the above-mentioned, it can even be reduced by about a tenth, and thus, during the critical period, everyone involved can always keep it with them without any special - even financial - burden.

The double function of the rubber strap running under the base plate also contributes to simpler construction and size and cost reduction.

The design is more cost-effective if, for example, the spike-like protrusions of the stainless steel base plate on both sides are formed by the part of the base plate that is partially cut off and bent out of the plane of the base plate on both sides of the base plate, this solution also has a double function, the second function is to create base plate breakthroughs, where pull-off surface parts can form on the rubber band. By bending out of the plane of the base plate, it is of course spike-like with the same hardness on both sides

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Π protrusions are obtained, therefore it is beneficial to make those drilled into the road surface harder and more wear-resistant, e.g. with TiN coating. The forces arising on the two sides of the base plate balance each other, so the size and number of spike-like protrusions must be sized accordingly. Since the wake forces must be balanced in the case of winter footwear soles made of any material, during intended use, the smaller spike-like protrusions on the side facing the footwear-sole are denser than the larger spike-like protrusions on the other side.

With automatic cleaning, snow and ice build-up between the spike-like protrusions drilling into the road surface can be prevented, and thus the size of these spike-like protrusions that form a shape lock with the road surface, and thus the size of the entire device, can be reduced without compromising safety. Automatic cleaning is performed by stripping, which - regardless of the nature of the applied stress - means the removal of an unwanted layer, which is performed by the stripping surface. The scraper surface prevents snow and ice build-up between the larger spike-like protrusions by cleaning with every step. An advantageous design is if, when placed on the footwear, a flexible rubber strap made of rubber foam, encircling the shoe toe as well as the sole plate together with the larger spike-like protrusions in a ring-like manner, carries the pull-off surface with a flexible connection to the sole plate. When stepping on the road, the rubber foam is compressed and the protruding spikes form a shape lock with the slippery surface. By lifting the foot, the rubber foam envelops the spike again, pulling off or just throwing off any snow or ice that may have stuck to it.

Further simplification, if only a part of the flexible rubber band lying on the side of the sole plate with larger spike-like protrusions is flexibly connected to the sole plate as a pull-off surface. With the realization that dangerous snow and ice jams are rigid, and thus only a skimming surface located along a few base plate openings and only slightly displaced perpendicular to the base plate is sufficient, the device's characteristics are significantly improved; it will be lighter and smaller in size, the flexible rubber strap can be a solid rubber band, which increases its durability. Cleaning is not l'art pour l'art, and its task is not to make the device spotlessly free of snow and ice, but only to prevent clogging between the spike-like protrusions, which threatens the safe anti-slip, which is caused by the scraper surface -parts are also provided. Continuous cleaning ensures no build-up and thus no slip even with spike-like protrusions that are only a few mm larger, which also contributes to minimizing the size and cost of the device.

The anti-slip accessory according to the invention is described in more detail through drawings, where it is

Figure 1 shows the anti-slip accessory with foam strap from above, a

Figure 2 shows it from below with orthogonal axonometric mapping. THE

Figure 3 shows the top view of the solution with a base plate breakthrough, a

Fig. 4 shows the part of the stripping surface along the base plate breakthrough in the bottom view, that is

Fig. 5 shows a pair of anti-slips placed in the case shown with a hatch closed with a lid.

Figure 1 shows the preferably stainless steel sole plate 1, with 2 densely placed small spike-like protrusions on the upper part of the mm, which form a form-lock connection with the sole of the shoe, as well as 4 flexible rubber straps made of rubber foam, which have a ring-like design and are narrower at the top - which part surrounds the toe of the footwear - while it is wider under the sole plate 1 under the sole of the footwear, where the sole plate 1 s 3 runs at the bases of larger, preferably titanium nitride-coated, spike-like protrusions. Figure 2 shows the rarer 3 larger spike-like protrusions of a few mm on the underside of the sole plate 1, which are embedded in the 4 flexible rubber bands of foam rubber surrounding the sole plate 1, which 4 elastic rubber bands also have a dual function and carry the 5 pull-off surface.

Figure 3 shows a top view of the design with a base plate opening 6 with a slightly asymmetrical design of the slimmed-down part of the elastic rubber strap 4, whereby a larger surface of the base plate 1 remains exposed on one side. Figure 4 shows the 6 base plate openings partially from below, Figure 4

4/6 makes it visible by breaking out the elastic rubber band, and thus the 5 pull-off surface carried by the 4 elastic rubber band along the 6 footplate breakthrough can also be identified. Figure 5 shows the ready placement of a pair of anti-slip pads - with a solution provided with a base plate penetration 6 - in the case 8 closed with a lid 7.

To place the anti-slip on the footwear, place it on the road and step on the sole plate 1, then adjust the 4 flexible rubber straps with a ring-like design to the toe of the footwear and place your body weight on the front part of the foot on the slippery road section - you can walk safely even in the case of sleet. A separate attachment is not necessary, because when stepping on the slippery road surface, the reaction force occurring on the 3 larger spike-like protrusions that drill into it and securely fix the position of the sole plate 1 with a shape lock, keeps the footwear sole balanced in the shortest way on the 2 smaller spike-like protrusions on the other side of the sole plate 1, which also form a shape lock by active force, preventing its displacement relative to the base plate 1. The use of the 4 elastic rubber straps is only the holding of the sole plate 1 next to the sole of the shoe in a raised position when there is no reaction force. Given that the rubber strap can be easily stretched to the toe of any shoe, the use of some kind of buckle or Velcro to help adaptation becomes unnecessary, which would make it difficult to put on, especially in snowy conditions. The stripping surface 5 of the flexible rubber strap 4 made of rubber foam comes close to the sole plate 1 with each step, and then, when the foot is lifted, it moves along the larger thorn-like protrusions 3 and cleans them of the snow and ice stuck to them, which prevents slipping due to accumulation. When placed in a suitable case, the rubber foam will be compressed by 4 flexible rubber straps, reducing the size of the enclosure, on the other hand, the storage space will be protected from pointed/sharp parts, or from pollution.

In the case of the solution with 6 soleplate perforations, due to the slightly asymmetrical design of the slimmed-down part of the 4 elastic rubber band, we can step onto the larger surface left free on one side of the soleplate 1, and then adjust the anti-slip to the footwear. When stepping onto a snowy and icy road, the 3 larger spike-like protrusions stabilize the position of the sole plate 1, and the footwear via the 2 smaller spike-like protrusions on the other side. In this case, the stripper surface 5 is in contact with the road and is pressed towards the base plate breakthrough 6. In the next step, when the footwear is lifted, the hard snow-ice block that may have been jammed between the 3 larger spike-like protrusions is removed by the pull-off surface 5, which is flexibly connected to the sole plate 1. This is also helped by the slight displacement along the plane of the base plate 1 caused by the parts of the pull-off surface 4 of the elastic rubber band 4 around the larger spike-like protrusions 3, as a result of which the adhesion is broken and the stuck block falls off the raised anti-slip.

The criterion of accessibility to a suitable device is not only contributed by the characteristics of the anti-skid placed on one shoe, but also the optimal placement of a pair of anti-skid even in a standby state, because no matter how effective the anti-skid is, if it is not always accessible during the critical period. Until now, the creation of anti-slip devices (e.g. DE202007000316U1) that can be used even in an unexpected emergency situation did not include provision for a practical state of readiness, which is contributed not only by the structure of the device, but also by its placement on the person concerned. When the device is placed on the leg and when it is ready, it must have two types of design, the one suitable for non-slip on the leg, and the minimum size when ready, so that it can be at hand and then on the leg in an unexpected situation. Accordingly, in order to fully eliminate the above five deficiencies, a pair of anti-slip pads - 6 with sole plate perforations - are required, with their 3 larger spike-like protrusions facing each other (which contributes to a size reduction of approx. 30% so that it can be kept in a pocket when ready) and compared to each other 3 offset by the radius of the larger spike-like protrusions, compactly placed in the case 8 equipped with a lid 7, as shown in figure 5.

Despite the aforementioned and numerous other tools aimed at averting the unexpected danger situation, the treatment of injuries that occurred due to the shortcomings summarized in the five points above overloaded a renowned hospital in 2019, which initiated suitable prevention.

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Unlike the type of anti-skid device described above, which is used regularly and planned, the device according to the invention is adapted to prevent accidents in an unforeseen emergency situation, by transforming it to walk on a macadam road. Its low cost, its universal and simple applicability, independent of the size and shape of the footwear, also make it possible to help out a company in a difficult situation due to a slippery road.

The power transmission chain of the previous spiked Kalocsni-type solutions is made with flexible, longer members made of mostly non-recyclable materials, in contrast to the road transformer solution, which is advantageously metal, and therefore infinitely recyclable through a base plate of approx. with a 1mm power transmission member. With the construction of the tiny spike-like protrusions, which requires the least amount of footwear, but ensures the shape lock, the spiked clog-type solutions can mostly be replaced, as a result of which not only the user of the device gets a more favorable use value, but we are also freed from robust straps made of foreign materials that transfer forces to the footwear already attached to the foot .

The anti-slip accessory for a pair of footwear, either right- or left-handed, which, due to its simple, low-force installation, is equipped only with a rubber film and is space-savingly placed. Due to its small size (approx. 70x30x1 Omm) and its case, it can always be kept ready even in a pocket during the critical winter period and any can be quickly attached to size s-shaped footwear, or it can be removed according to the road conditions, with which even for those on the road, an unexpected emergency situation, which can affect everyone and is the cause of most accidents, can be bridged with sufficient caution.

Claims (7)

1. Encased in its ready state, it can be carried in a pocket for a pair of non-slip additional footwear, or in a right- or left-handed design, which has a sole plate (1) located under the sole of the shoe when it is placed on the shoe, and hard, wear-resistant, larger spike-like protrusions (3) protruding from the sole plate (1) in the direction of the road ), characterized by the fact that on the side of the sole plate (1) towards the sole of the foot, there are smaller spike-like protrusions (2), but in terms of strength, essentially corresponding to the larger spike-like protrusions (3), while on the other side, between the larger spike-like protrusions (3) there is a scraping surface (5), which strip-off surface (5) is flexibly connected to the sole plate (1) attached to the flexible rubber strap (4) crossed over the toe of the footwear. 2. The anti-slip device according to claim 1, characterized in that the smaller (2) and larger spike-like protrusions (3) of the base plate (1) are formed by both parts of the base plate (1) that are partially cut off and bent out of the plane of the base plate (1) on the side. 3. The 1.-2. An anti-slip device according to claim, characterized by the fact that on the side of its sole plate (1) facing the footwear sole, the smaller spike-like protrusions (2) are denser than the larger spike-like protrusions (3) on the other side. 4. Anti-slip device according to claims 1-3, characterized in that the flexible rubber strap (4) is made of foam rubber. 5. The anti-slip device according to claims 1-3, characterized in that the flexible rubber band (4) is a solid rubber band/ring. 6. The anti-slip device according to claims 1 - 5, characterized in that the part of the flexible rubber strap (4) lying along the opening (6) of the sole plate - on the side of the sole plate (1) with larger spike-like protrusions (3) - is flexibly connected to the sole plate (1) , as a scraping surface (5). 7. A pair of anti-skid devices according to claims 1-6, either right-handed or left-handed, but in the standby state, characterized by the fact that the side on which the larger spike-like protrusions (3) are facing is placed in (8).