SE1651230A1 - Shoe sole with a non-slip sole element and shoe - Google Patents

Abstract

The present invention is a non-slip shoe sole comprising a turnable element of the shoe sole attached to a front and a rear fastening means comprising: a first side which is similar to the rest of the shoe sole in particular with regard to friction; and a second side including non-slip means; where the front and a rear fastening device for the reversible element of the shoe sole isit is possible to lift the turnable element up from the shoe sole by loosening the rear fastening device so that the reversible element can be twisted at least about 180 degrees about its longitudinal axis while it still is attached to the front fastening means and then put back on the shoe sole in a single operation carried out by one hand, and without operating anything under the sole or to use tools. The present invention also includes a non-slip shoe where slip resistance is achieved by using a sole according to the invention.Fig.l

Description

WO 2015/122776 PCT/NO2015/000001 Title: Shoe sole with a non-slip sole element and shoe Field of invention The invention relates to non-slip soles. More particularly the invention relates to theuse of anti-slipping means incorporated in the shoe sole with an active positionwhen it is slippery, e.g. outdoor in the winter, and a non-active position when it isnot slippery, e.g. indoors.

Background of the Invention It is a known problem that people slip and fall on ice. In Nordic countries there is aproblem for the individual who may suffer different type fractures and a long periodin hospital and lost earning, and for society as a loss for each year because ofabsence from work.

Various crampons and spikes are on the market. Some are incorporated in the shoesole while others are fastened to the shoe surface in different ways.

WO 2004/041016 describes a shoe sole with anti-slip means that are arranged onthe sole surface that touches the ground. Anti-slip means are attached to the sole ofthe shoe by fairly rigid support members and are hinged so that they can be liftedand rotated 180 degrees about its axis of symmetry which is different from thelifting axis. Each support member is contained in its own recess arranged in thesole.

US Patent license-4, 745, 629 discloses a rotatable anti-slip means suitable formountaineering and snow, comprising a rotatable non-slip part projecting outwardto fulfill their purpose and facing inwards and contained in a recess when not in use.US 2004088883 describes a boot with a recess in the shoe sole and a sole plate thatreleasably fits into a cavity in the side wall of the recess to hold the toe end of thesole plate fixed. A strap is attached to heel end of the sole plate and extends to afixing device located at the back of the boot.

A problem with the above inventions have been getting anti-slip means out of itsinactive position resulting long to activate anti-slip agents. It is not possible toactivate anti-slip agents in a simple manner without taking off your shoes or at leastsit down and perform operations under the shoe sole possibly with different types oftools.

Object of the invention In view of the above drawbacks of the prior art it is an object of the presentinvention to reduce these drawbacks. More specifically the object is to provide ashoe sole and a shoe with anti-slip means fastened to a turnable element of the shoesole and arranged such that activation of the anti-slip means can be performed withone hand of the user. This is accomplished by the invention as defined by thefeatures explained in the summary below and the accompanying independentclaims. The dependent claims specify preferred embodiments of the invention.

Summary The present invention is a non-slip shoe sole comprising a turnable element of theshoe sole attached to a front and a rear fastening device comprising: a first sidewhich is similar to the rest of the shoe sole in particular with regard to friction; anda second side including anti-slip means; where the front and a rear fastening device WO 2015/122776 PCT/NO2015/000001 for the turnable element of the shoe sole is characterized in that it is possible to liftthe turnable element up from the shoe sole by loosening the rear fastening device sothat the turnable element can be twisted at least approximately 180 degrees about itslongitudinal axis while still being attached in the front fastener and then put back onthe shoe sole in a single operation carried out by one hand, and without operatinganything under the sole or using tools.

The present invention also includes a non-slip shoe where slip resistance is achievedby using a sole according to the above paragraph.

The term shoes it in this application is meant to include any device used on the feetof people doing common activities e.g. shoes, boots, ski boots, running shoes,galoshes, etc.

Brief Description of the Figures For a better understanding of the invention, and to show how embodiments of theinvention may be implemented, an explanation will now be given, by way ofexample, with help of the accompanying schematic drawings in which: Figure 1 shows the sole with the turnable element.

Figure 2 shows the sole where the turnable element is loosened from the heel.Figure 3 shows how the turnable element can be rotated about its longitudinal axis.The two dotted lines indicate respectively the pivot axis A and the lift axis B to theturnable element.

Figure 4 shows an embodiment where the front hub and the turnable member isattached near the toe of the shoe.

Figure 5 shows an embodiment where the front mounting means is a flexiblematerial that can be twisted at least about 180 °.

Figure 6 shows an embodiment where the front mounting means is a ball joint (A)or a head shaped like a cone (B) or a head (C) of a screw.

Figure 7 shows an embodiment in which the front fastener is a two-jointed solutionFigure 8 shows an embodiment where the front mounting means is a wire or astrong line that turns at least 180 °.

Figure 9 shows an embodiment where the rear fastening device is a simple hook andan elastic strap.

Figure 10 illustrates an embodiment where the rear fastener is a rigid pin throughthe elastic strap that can be hooked in one or more tracks or grooves in the heel.

Detailed Description of Preferred Embodiments ln the following, similar parts in the various figures designated by similarreferences.

With reference to Figure 1, the sole of a shoe 1 with a turnable element 2 accordingto the invention is shown. The turnable element is fixed to the front and rear withfastening means described later and is strapped into a recess 3 not being able to slipin any directions. Furthermore, the turnable element 2 is symmetric about itslongitudinal axis and fits in its corresponding recess 3 even though it is turned 180°. The turnable element can be equipped with anti-slip means e.g. ice spikes 11 onone side as shown in the drawing. On the other side the turnable element is similar WO 2015/122776 PCT/NO2015/000001 to the rest of the shoe sole, in particular with regard to friction.

With reference to Figures 2 and 3 it is shown how the turnable element 2 isloosened from a rear fastening means 4 and thus can be rotated at least about 180 °about its longitudinal axis with mounting in a front fastener 5 to enable or disablethe anti-slip means.

In principle, the front fastening means 5 of the turnable element 2 can be positionedanywhere along the longitudinal axis of the shoe sole. Figure 4 shows anembodiment of the invention in which the front fastening means 5 is positionedclose to the toe of the shoe sole.

Figure 5 shows an embodiment of the invention where the front fastening means 5of the turnable element 2 is an elastic, relatively thin portion that can be twisted atleast approximately 180 °.

Figure 6A shows an embodiment of the invention where the front fastening means 5of the turnable element 2 is a ball with an arm which is attached to the turnablemember 2 and wherein the ball is retained in a cavity in the sole of the shoe with anopening that is less than the diameter of the ball and greater than the diameter of thearm. It is also possible to envisage shapes other than spheres as shown in Figures6B and 6C, showing a head shaped like a cone and a head of a screw respectively.Figure 7 shows an embodiment of the invention where the front fastening means 5of the turnable element 2 comprises two rotating joints: a joint 7 that rotates aboutthe longitudinal axis of the turnable element of the shoe sole, and a part 8 whichpivots about a lifting axis, in which the joint is located in and is attached to the shoesole and which is approximately 90 degrees to the longitudinal axis of the turnableelement.

Figure 8 shows an embodiment of the invention where the front fastening means 5to the turnable element 2 comprises a wire or strong line which can be rotated atleast about 180 ° about the longitudinal axis.

Figure 9 shows an embodiment of the invention in which the rear fastening means 4of the turnable element comprises a fastening hook 11 and an elastic strap whichbends over the heel. Optionally, the strap can be replaced by a rigid, jointed unitwith a form of spring. The strap also has a spike 12 indicating which side of theturnable element facing towards the ground. Preferably, there are several holes inthe strap to adjust the tension of the belt if it becomes worn over time.

Figure 10 shows an embodiment of the invention in which the rear fastening means4 of the turnable element comprises a strap with a retaining pin 13 which extendsacross the belt and fit into one or more fixing hooks 14 a and b of the heel.

The descriptions in this application are intended as examples to illustrate theinvention and various modifications can be made within the scope of the claims, forexample, the front fastening means 5 may be varied in many ways and the shape ofthe turnable element can vary from being a narrow strip on the heel to cover almostthe entire shoe sole.

Claims (6)

WO 2015/122776 PCT/NO2015/000001 Claiims

1. A non-slip shoe sole (1) comprising a turnable element (2) of the shoe sole ( 1)attached by a front (5) and a rear (4) mounting means, where the turnable elementcomprises a first side which is similar to the rest of the shoe sole (1) in particular withregard to friction; and a second side that includes anti-slip means (6); where the front (5) andthe rear (4) mounting means of the turnable element (2) of the shoe sole ( 1)is characterized in that it is possible to lift the turnable element (2) up fromthe shoe sole ( 1) by releasing the rear fastening device (4) so that the turnableelement (2) can be rotated at least approximately 180 degrees about itslongitudinal axis while it is still attached to the front fastening means (5) andthen put back on to the shoe sole (1) in a single operation carried out by onehand.

2. Non-slip sole according to claim 1, characterized in that the turnable element(2) is completely or partially flexible.

3. Non-slip sole according to claim 1, characterized in that said anti-slip meanscomprise one or more spikes, screws and cornered molded in objects which providegrip on snow and ice.

4. Non-slip sole according to claim 1, characterized in that the pivoting element(2) is embodied in a recess (3) and is designed to fit into the recess when it isrotated l80°.

5. Non-slip sole according to claims 1-3, characterized in that the forwardfastening means (5) of the turnable element (2) of the shoe sole (1) comprises one ofthe following options: a flexible material attached to the sole of the shoe (1) which can be twisted atleast about 180 degrees, a ball joint attached to the shoe sole, two links: a joint (7) which rotates about the longitudinal axis of the turnableelement to the shoe sole, and a joint (8) which pivots about a lifting axis, inwhich the joint is located in and is attached to the shoe sole and which isapproximately 90 degrees to the longitudinal axis of the turnable element, a wire or strong line and can be turned at least about 180 ° and which issecured to the shoe sole.

6. Non-slip sole according to claim 1-5 characterized in that the rear fasteningmeans (4) of the turnable element (2) of the shoe sole is attached with fasteningmeans on the rear of the shoe at a distance from the lower part of the shoe sole (1),wherein the fastening means includes one of the following options: WO 2015/122776 PCT/NO2015/000001 a strap with Velcro attached to the turnable element (2) that attaches to acorresponding Velcro heel,an elastic strap attached to the turnable element that attaches to the heel bymeans of a catch, s an elastic strap with a pin 13) transversely attached to the turnable element(2) attached in one or more prongs (1 1) or grooves (14) on the heel, anda strap attached to the turnable element (2) secured with a brace in the heel. A slip resistant shoe, characterized in that the anti-slip effect is achieved byio using a shoe sole (1) according to one of claims 1 to 6.