SE1250333A1 - Anti-slip with retractable studs - Google Patents

Abstract

A device for slip-damping effect, comprising a sole unit and a spike with a resilient, circumferential fastening which allows the spike to be tilted in case of shearing motion against the ground surface, wherein the device provides grip on hard ground surfaces as a result of the sole unit, and at the same time the risk of slipping on hard, slippery ground surfaces is reduced by the spike.

Description

10 15 20 25 30 circumferential attachment that allows the stud to be tilted when shearing movement against the surface gives the device grip on hard surfaces through sole sole while reducing the risk of sharks on hard slippery surfaces through the stud.

According to a first aspect of the inventive concept, the above is achieved purpose and other objects by means of an anti-slip device for coatings to, or incorporated into, a shoe, comprising a sole unit, at least one stud with a top and a protruding part that is adapted to grip in one substrate when slipping, said stud being arranged so that said protruding part extends from the sole unit, the one in said sole unit a cavity is defined above the upper part of the stud, the stud being suspended in one resilient circumferential attachment in said sole unit, said resilient circumferential attachment is arranged to spring said stud so that said stud can be received by said cavity when said sole unit is pressed against the substrate so that a force is applied to said projecting part, wherein said resilient circumferential attachment is adapted to allow tilting of said stud when shearing against the ground, and wherein said resilient circumferential attachment is adapted to allow resilience of said dubb when said force decreases.

In the context of the application, a sole unit refers to a unit intended for to lay on a base. For example, when the device is incorporated in a shoe the sole unit refers to the outer shoe sole. Furthermore, said cavity refers to a volume in the sole unit where the stud can move. Typically, this cavity is filled with air, but could also be filled with another gas, liquid or solid substance with high ibil flexibility such as foam material. Further refers to shear motion a motion in substantially the same plane as the ground so that the sole unit slides against the ground. For example, if the substrate is complete horizontally, a shear motion is a motion substantially without vertical component so that the sole unit slides on the ground.

With a device designed as above with a circumferential attachment and a cavity above the stud, so the stud is allowed to push in and at the same time tilted relative to a sleep position. The skew makes that despite that the stud is pressed into the cavity giving it attachment to the substrate then the studs 10 15 20 25 30 indentation and angle change based on the magnitude and direction of a force from the ground exposes the stud to. For example, when the device is arranged on or incorporated in a shoe and the user shoots away with the foot or slips, the stud can be tilted and drilled into the surface, which gives one effective grip when needed.

Thereby, the device provides grip and support that allows deformation such as ice and packed snow. At the same time, the device provides for hard surfaces such as a stone, wood or tile floor a good grip by the force from the ground being sufficiently large and vertical upwards so that the stud is pushed into the cavity and thereby it can surrounding sole unit, which may be made of, for example, a flexible polymeric material or rubber material, come into contact with the surface and thus allow grip on the hard surface without users risking slipping the studs.

The above-mentioned device provides a non-slip protection as well facilitates the use for the user by eliminating the step of remove the anti-slip protection when changing surfaces.

Furthermore, wear of the metal stud is also reduced the concept of invention in that the stud is pressed into the cavity, and thus increases the service life of the anti-slip device.

In one embodiment, said cavity may have a depth at least corresponding the vertical distance between the outermost tip of the projection of said stud part and a plane defined by the underside of said sole unit.

By a plane defined by the underside of said sole unit is meant plane as the part of the sole unit which is intended to abut against the ground when used essentially located in.

Thus, when the stud is only affected by a substantially vertical upward force from the ground, the projecting part of the stud can be pressed into the cavity. When the stud is not subjected to any force other than substantially vertical there is no tendency to slip and thus no one is needed anti-slip function of the stud. Thus, unwanted wear can be counteracted, by not wearing the stud when it is not needed. 10 15 20 25 30 Furthermore, when the stud is substantially depressed in the cavity and the force it acts on the ground with is limited so comes most of the force against the ground is transmitted from the sole unit. Thus, one can also better grip on hard surfaces such as stone or wood floors is offered the user, instead of the studs being active and becoming slippery.

In another embodiment of the inventive concept is defined in said dubbs rest position a longitudinal rest position axis in said projecting part extent, whereby when tilting said stud, one is defined inclined axis in said projecting partly inclined extent, wherein when an angle of said stud is inclined, an angle is formed between said rest position shaft and tilt shaft In another embodiment, the upper of the stud may have a width such that when said stud is inclined, said upper part is pushed down by said upper side of the cavity so that said projecting part is pressed down through the plane defined of the underside of the sole unit.

Thereby, the force that the stud in an inclined position can act on the base with increase further. By a user loading the sole unit the stud will also be loaded and the effect of the anti-slip effect will increase. This makes that in case of need for anti-slip, ie. when the stud has been pushed against the ground, so the anti-slip resistance is extremely high. In one embodiment, the device picks up between about 200 N and about 400 N before a slide towards the ground can be seen ocularly observed. In another embodiment, the device takes up between about 250 N and about 300 N before a slip against the ground can be observed ocularly.

In yet another embodiment, said sole unit may be one cover adapted to be arranged on a shoe.

Thereby, one and the same device can be used for several different pairs shoes, and even for different users. This allows the user to save money by investing only in one device.

In another embodiment, said device is arranged in a shoe, wherein the sole unit is incorporated in the outer sole of a shoe.

As a result, the non-slip cushioning can be built directly into a shoe, which may be preferable when running or other frequent activity on slippery surfaces.

With such a device, the user does not have to spend time taking off and on 10 15 20 25 30 on the device from the shoes. In addition, the user does not risk forgetting the device somewhere.

In yet another embodiment, said device may be adapted to be mounted on a dipping shoe for use on a crutch or stick, said sole unit being incorporated in the sole unit of the dipping shoe.

Thereby a user can get a non-slip device on one cane or crutch, which can be desirable when a cane or crutch used to support a user's balance, and whether the crutch or cane slipping against the ground, there is a risk that the user will fall and hit himself. By thus providing the cane or crutch with the device above can be increased security for a user significantly.

The device can also be arranged directly on a cane or crutch without special immersion shoe, or possibly mounted separately on already existing ferrule. It is also possible to adapt the anti-slip device to fit on other aids, such as walking sticks, or other devices such as wheels for wheelchairs or prams.

In yet another embodiment, said device may comprise one plurality of said studs with said resilient circumferential attachment arranged at a distance from each other.

Thereby, the substrate can affect the studs with forces that are different large and / or have different directions and thus give an even larger anti-slip effect. Thus, such a device can further improve it anti-slip effect for a user.

In another embodiment, said cavity may be filled with a medium which allows said stud to be tilted then said projecting part affected by a sufficiently large force with a directional component in the plane defined by the underside of the sole unit.

Thereby, the resistance of the stud can be adapted for different users and or uses. For example, the device can then be adapted to the user's weight and size so that a non-slip protection for children is adapted so that they requires less force than an adult device and / or a device for running requires a higher force than a device adapted for walking.

Examples of media that can fill the cavity can be a gas such as air, a 10 15 20 25 30 liquid or other material with high flexibility such as foam material or Hknande.

In yet another embodiment, said stud may have a circular one cross section.

According to one embodiment, the stud and the circumferential attachment are rotationally symmetrical about said rest position axis.

As a result, the device acts as an anti-slip device no matter in which direction a user tends to slide relative to the ground. It makes that for example, a runner has as good a grip when accelerating as when braking or lateral movements, or that a user with the device on a cane has a grip with the cane regardless of the direction in which the cane is loaded.

In another embodiment, said circumferential attachment may be in said sole unit have an annular flange.

This allows the stud to be attached to the sole unit in a way that gives one compliant movement in many degrees of freedom, which further improves it anti-slip effect.

In yet another embodiment, said stud may comprise one groove portion along at least partially said circumference of said stud, adapted to enclose said annular flange.

Thus, the stud can be attached to the sole unit via the flange without glue, tape, weld or equivalent, which provides the advantage that the user can easily replace the studs if necessary. This means that the device has a longer service life and less environmental impact as the entire device does not need to be replaced the studs become worn.

In one embodiment, the material differs in attachment from the sole material of the sole unit to adjust the resilient effect.

The material may be a flexible polymeric material such as e.g. TPE plastic or rubber.

Brief description of the drawings The invention will now be guided by the following drawings described in more detail. The drawings are to be viewed for illustrative purposes only and has no limiting effect, wherein 10 15 20 25 30 Fig. 1 shows a detail side view in section of a device for non-slip damping as above where the device is at a distance from one undedag, Fig. 2 also shows a detail side view in section where the device is pressed against a surface, Fig. 3 shows a detail side view in section where the device is pressed against a surface and where the device has been pushed against the surface so that the stud is inclined, Fig. 4 shows a side view in section where the device has a plurality studs and where the device is pressed against a surface and pushed against the base so that the studs are inclined, Fig. 5 shows an embodiment when the device is a surface non-slip protection for a shoe, Fig. 6 shows an embodiment when the device is a non-slip protection incorporated in a shoe sole.

Detailed description The present invention will be described in detail below with reference to the drawings, in which drawings embodiments of the inventive concept are shown.

However, the inventive concept can take many different embodiments and forms not limited by the embodiments described below.

The embodiments below are included only for the concept of the invention must be sufficiently clear to a professional.

The description below describes a device for anti-slip effect comprising sole unit and a stud with a resilient circumferential attachment which allows the stud to be tilted when shearing against the ground wherein the device provides grip on hard surfaces and at the same time reduces the risk of slipping on hard slippery surfaces.

The description below primarily describes when a device according to the concept of the invention is adapted for a footwear such as a shoe, boot, sandal or similar. However, the present inventive concepts are similar applicable to a diving shoe for, for example, a crutch or cane.

The inventive concept can thus be used on all products that have 10 15 20 25 30 a device that is pressed against a substrate and there shear against that substrate want to avoid.

Figure 1 shows a detail side view in section of a device 100 for anti-slip. The device 100 has a stud 1 which is attached to a sole unit 2.

The stud has a projecting part 4 which in the rest position in the figure has a longitudinal extent substantially against a base 10. Furthermore, the stud 1 has an upper part 3 in which the stud is attached to the sole unit 2. In one embodiment, the upper part 3 made of hard plastic, but can also be made of metal or another relative hard material.

The sole unit 2 has a flexible protruding part which is adapted for resilient and circumferential attachment 5 of the stud 1 in the sole unit 2. In a embodiment, the projecting part is an annular flange. At another embodiment, the stud 1 comprises a groove portion 9 along at least partially said circumference of said stud 1, adapted to enclose the annular flange.

The sole unit can be an integral part of a shoe or a dipping shoe for one crutch, cane or the like. In another embodiment, the sole unit 2 may be a support element in a non-slip device adapted to be attached to a shoe or diving shoe for a crutch, cane or similar. The solitude unit consists of one embodiment of an elastic material such as TPE plastic or other flexible polymer or rubber material. In one embodiment, when the device is arranged in a non-slip protection that is attached to a shoe or the like, is the material of the sole unit adapted for temperatures between -40 ° C and 10 ° C.

Above the circumferential attachment 5 of the stud 1 forms the support element a cavity 6. The cavity is limited laterally by walls 11, 12 of the sole unit 2, and is further limited in height downwards by the studs 1 upper part 3 together with the circumferential attachment 5 and in height upwards by a top side 13 of the cavity. Top 13 limiting the hollow space upwards can be constituted by either the sole unit 2, or by another support element 7 which may be part of a shoe or dipping shoe for a crutch, cane or the like, or alternatively a part of a non-slip device adapted to attached to a shoe or dipping shoe to a crutch, cane or the like.

The side walls 11, 12 can be one and the same circular wall the cavity is circularly designed. In other embodiments, the cavity 6 may 10 15 20 25 30 have other geometric shapes such as triangular, rectangular or irregular.

In Figure 1, the device 100 is located at a distance from the substrate 10, which means that the stud 1 is in a rest position relative to the flexible one circumferential attachment.

In the rest position, as shown in Figure 1, the depth of the cavity 6 is between the upper part 3 of the stud 1 and the upper side 13 of the cavity space 6 a distance D1.

The distance D1 can vary between, for example, 1 and 15 mm.

Furthermore, the protruding part 4 of the stud 1 protrudes with one distance D2 from the plane defined by the underside 8 of the sole unit 2 when the stud is in sleep mode. The distance D2 can vary between, for example, 1 mm and 15 mm.

The longitudinal extent of the stud 1 defines one at rest rest position axis A1 which is substantially perpendicular to the plane defined by the underside of the sole unit 2 8.

The distance D1 can be substantially equal to, or greater than the distance D2 in one embodiment. Thus, when the device 100 is depressed against the base 10, as shown in figure 2, the sole unit 2 is in contact with the substrate at the same time as the protruding part 4 lower edge of the stud is in line with the sole of the sole and thus also in contact with the ground.

In the embodiment where the distance D1 is greater than the distance D2 is the distance D1 is preferably only about 1 mm to about 4 mm larger than the distance D2. Thus, the device can be made with a relatively thin thickness.

In the position where the device abuts the base, one presses normal force from the ground (not shown) up the stud in the cavity 6.

The deformation of the visible circumferential attachment 5 of the stud in the sole unit 2 gives rise to a force F1 as the projecting part 4 of the stud 1 exercises on the surface 10. The magnitude of the force F1 can be varied depending on the design of the flexible circumferential attachment, but the principle builds on the same principle used in, for example, a slingshot.

In one embodiment, the flexible circumferential attachment is made of rubber or TPE plastic, but it can also be made of other suitable flexible polymeric material. In another embodiment, the attachment consists of fl era 10 15 20 25 30 10 materials with varying properties, depending on how the resilient effect to be adapted. Because the device is adapted to be used primarily in winter, it may be preferable that the material is adapted too low temperatures, preferably adapted for a temperature range -40 ° C to +10 ° C.

Thereby, the material can retain its flexible property and does not risk crack or otherwise be destroyed. A material that meets these conditions are TPE plastic which has good properties in cold.

In one embodiment of the device, the design of the flexible can the circumferential attachment 5 is adapted to the weight of the user, for example between 10-30 kg, 30-70 kg and 70-100 kg or more and / or other intervals. In a other embodiment, the design can be adapted to the area of use, such as jogging, crutch support or walking.

Thereby, the force of the flexible circumferential attachment 5 on the stud and thus also the force F1, F2 that the stud 1 exerts on the ground is adjusted according to the need based on the user's weight and area of use.

In the position shown in figure 2, it is not the stud 1 but the sole unit 2 that gives rise to frictional force against the surface 10. If the surface is bare ground such as, for example, dry asphalt, stone, tile floors in shops, etc., the sole unit acts like any gripping sole.

If the sole unit 2, and thus also the projecting part 4 of the stud 1, abuts the substrate 10 at the same time as it is pushed in some direction so the stud 1 is tilted in the cavity because it is in contact with the substrate, as shown in Figure 3. The skew will occur as a twist about an axis substantially parallel to the substrate. With a shearing motion means a movement in the same plane as the ground, ie. a movement essentially without vertical component so that the sole unit 2 slides on the base 10.

The longitudinal extent of the stud 1 thus defines in it inclined position an inclined axis A2 which forms an angle oi to rest position shaft A1.

By tilting the stud, the force F2 increases as the stud 1 projecting part 4 acts on the substrate 10 compared to the force F1 which the stud acts on the ground with if the stud is not skewed. Thus the sole unit is prevented from sliding against the ground. The increased force F2 is due 10 15 20 25 30 11 that the normal force (not shown) from the ground increases when the stud is tilted, which in turn allows the corresponding force generated by the flexible orbital the attachment 5 of the stud 1 increases.

In one embodiment, the increased force F2 is also affected as the stud acts on the substrate 10 by pressing the upper side 13 of the hair space 6 with a force F3 on the upper part 3 of the stud 1 generated by the load from the user. The upper part 3 of the stud 1 is pushed down approximately the entire weight of the pedestrian divided by the number of studs in the device. According to construction described above, this does not happen until the device starts slide relative to the surface. It is enough, however, that the device slides a lot short distance, for example 3-10 mm in any direction in the plane of the substrate. This means that the stud only acts with a significant force on the surface when the user slips, in other words when needed. In one embodiment, the force that the device acts on the substrate with increased from between about 20 N - about 25 N to between about 250 N - about 300 N when the device slides against the ground and the stud is tilted.

In one embodiment, the structure is rotationally symmetrical about one vertical axis so that it works the same regardless of the direction of the user tends to slip.

Figure 4 shows a device 110 with three adjacent studs 1a, 1b, 1c as an example that a device may have several studs. In Figure 4, two of the studs 1a, 1b are inclined in the same direction while the third stud 1c is tilted in another direction, which is made possible by independent attachments and that the studs are spaced apart. For example, one rotary shear movement of the sole unit 2 relative to the base 10 or so the surface is uneven so you can get the effect that the studs 1a, 1b, 1c get different skewed directions.

Figure 5 shows in cross section how the device can be implemented in a non-slip device adapted to be attached to a shoe 14. I Figure 5 comprises the arrangement of two sections 100a, 100b with three studs in each section. In other embodiments, over a different number of studs be used. Furthermore, the support element 7 in the variant shown in figure 5 is a part of the anti-slip device adapted to be attached to a shoe. The fastening device of 10 15 12 anti-slip devices on shoes are available in many accepted solutions and will thus not be described in detail, but such fasteners may be for example buckles, Velcro or elastic materials that are threaded over skon.

Figure 6 shows in cross section how the device can be implemented directly in a shoe 14. In Figure 6, the device comprises two sections 100a, 100b with three studs in each section. In other embodiments another number of studs can be used. Furthermore, the support element 7 is i the embodiment shown in figure 5 is an integral part of the sole of the shoe.

In summary; when the surface is not slippery, the studs press against the surface only with little force and the sole unit provides the necessary grip and thus both studs and surfaces are protected from unnecessary wear. When the surface is slippery will, at the slightest tendency to slip to some slab, the studs in pressing against the ground with great force which allows the sliding stops immediately.

Claims (10)

10 15 20 25 30 13 Requirements A non-slip device (100) for covering to, or incorporating into, a shoe, comprising a sole assembly (2), at least one stud (1) having an upper (3) and a protruding portion (4) adapted to grip in a base (10) at slip, said stud (1) being arranged so that said projecting part (4) extends from the sole unit (2), wherein in said sole unit (2) a cavity (6) is defined above the stud upper part (3), characterized in that the stud is suspended in a resilient circumferential attachment (5) in said sole unit (2), said resilient circumferential attachment (5) being arranged to spring said stud (1) so that said stud can be received of said cavity (6) when said sole unit (2) is pressed against the base (10) so that a force is applied to said projecting part (4), said resilient circumferential attachment (5) being adapted to allow tilting of said stud (1) by sliding movement against the ground (10), said resilient circumferential attachment (5) being adapted to t allow resilience of said stud (1) as said force decreases. The anti-slip device (100) according to claim 1, wherein said cavity (6) has a depth (D1) at least corresponding to the vertical distance (D2) between the outermost tip of said projecting part (4) of said stud (1) and a plane defined of the underside (8) of said sole unit. 10 15 20 25 30 14 An anti-slip device (100) according to any one of the preceding claims, wherein the upper part (3) of the stud (1) has a width (D3) such that when said stud (1) is inclined, said upper part (3) is pressed down by said upper side (13). ) of the cavity (6) so that said projecting part (4) is pushed down through the plane defined by the underside (8) of the sole unit (2). An anti-slip device (100) according to any one of the preceding claims, wherein said sole unit (2) is a cover adapted to be arranged on a shoe (14). A device (100) for anti-slip protection according to any one of the preceding claims, wherein said device is arranged in a shoe (14), the sole unit (2) being incorporated in the outer sole (7) of a shoe. A device (100) for non-slip damping according to any one of the preceding claims, wherein said device is adapted to be arranged on a dipping shoe for use with a crutch or cane, said sole unit (2) being incorporated in the sole unit of the dipping shoe. An anti-slip device (100) according to any one of the preceding claims, wherein said device comprises a plurality of said studs (1a, 1b, 1c) with said resilient circumferential attachment (5) spaced apart. An anti-slip device (100) according to any one of the preceding claims, wherein said stud (1) has a circular cross-section. An anti-slip device (100) according to any one of the preceding claims, wherein said circumferential attachment (5) in said sole unit (2) is an annular flange. 15 The anti-slip device (100) of claim 9, wherein said stud (1) comprises a locking portion (9) along at least partially said circumference of said stud (1), adapted to enclose said annular flange.