WO2017089432A1

WO2017089432A1 - Strapless thong sandal

Info

Publication number: WO2017089432A1
Application number: PCT/EP2016/078606
Authority: WO
Inventors: Werner Staudenmann; Thomas Gerber; Michael Bühler
Original assignee: Werner Staudenmann; Thomas Gerber; Michael Bühler
Priority date: 2015-11-23
Filing date: 2016-11-23
Publication date: 2017-06-01

Abstract

The invention relates to a strapless thong sandal (1) comprising a sole (10). The sole (10) has a toe end (11), a heel end (12), an inside (14), and an outside (13). The thong sandal (1) comprises a toe thong (3) and a tongue (4), wherein the toe thong (3) is arranged closer to the toe end (11) than to the heel end (12) of the sole. The toe thong (3) has a first toe thong end (31), which is connected to the sole (10), and a second toe thong end (32), which is located substantially at toe height and bears the tongue (4). When the thong sandal is used as intended, the toe thong (3) is arranged between two adjacent toes of the user in order to be held in the toe interspace. When the thong sandal is used as intended, the tongue (4) at least partially covers the foot, the maximum width of the tongue (4) being greater than the maximum width of the second toe thong end (32). The toe thong has a front side (33) and a back side (34), wherein the front side (33) is oriented toward the toe end (11), wherein the back side (34) is oriented toward the heel end (12) and the line between the front side (33) and the back side (34) is defined as the longitudinal direction, which is arranged parallel to the sole length L. The back side (34) extends between the first toe thong end (31) and the second toe thong end (32), wherein the back side (34) has at least one measurement point (39), which has a minimal distance a to the toe end (11), wherein the minimal distance a is measured in a first parallel plane (6) parallel to the sole surface (16). The first parallel plane (6) extends through the measurement point (39). Between the measurement point (39) and a tongue point (45), a distance b is defined which has the greatest distance from the toe end (11) in the projection onto the first parallel plane (6), wherein the distance b is at least 2.5% of the sole length L.

Description

Strapless thong sandal

The invention is a strapless thong sandal.

Thong sandals are sandals in which the foot is held by a bridge between two toes, usually large and second toe. In India, also referred to as Paduka, they are a prototype of the shoe in general. Padukas exist in a variety of shapes and materials such as wood, ivory and even silver. Sometimes they are also elaborately decorated. However, the Paduka sandal is not suitable for a normal walking behavior due to its material and construction, the walking leads to pain, because the foot can not roll and only a sanding sanding of the sandal is possible.

The simplest thong sandals are also known as flip flops. They come close to the Padukas in walking behavior. The flip-flops are characterized by a simple construction with laterally the feet holding belts. Sole, bridge and strap are usually made of different plastics, fabric or leather. Flip-flops do not provide the foot with a firm hold, no guidance and a rather low attenuation on appearance. First and foremost, they are simple consumer and fashion items that are commonly used

Footwear to meet functional requirements (protection, guidance and support of the foot) are not enough. Although other sandal types have in this regard

Restrictions, but with Flipflops with their Einfachstbauweise this is particularly pronounced.

Other known toe walk sandals may be constructed of different materials, with the feet holding straps being characteristic. These straps either go off the toe bar and are attached to the sole side, or they run from one side of the sole to the other, or both combined. Occasionally there are also sandals that have an anatomically shaped toe bridge or an additional web attached to the part of softer material, so that caused by the bridge pain in the toe space when worn are reduced. Or they have a widening attached to the thong, which serves as a support surface and supports the foremost part of the foot in the area of the big toe and the second toe upwards. The document WO2005115189 AI shows a strapless thong sandal with the aforementioned features. Lately, there are increasing numbers of thong sandals on the market that are similar to the Paduka sandals. They have in common is that they have next to the thong on additional straps to prevent lateral slipping and allow a rolling walk. An object of the invention is to provide a strapless thong sandal that follows the foot movement without additional retaining means. In particular, the thong sandals should be comfortable and comfortable to wear, so that foot pain can be avoided. The comfort of use should also be ensured for use over a longer period of time. The solution of the object of the invention is achieved by the features of claim 1. Further advantageous embodiments are the subject of the dependent claims.

When the term "for example" is used in the following description, this term refers to embodiments and / or embodiments, which is not necessarily to be understood as a more preferred application of the teachings of the invention. preferred "by referring to an example of a set of embodiments and / or

Embodiments relate, which is not necessarily to be understood as a preferred application of the teaching of the invention. Accordingly, the terms "for example", "preferably" or "preferred" may refer to a plurality of

Refer to exemplary embodiments and / or embodiments.

The following detailed description contains various embodiments of the inventive toe bridge sandals. The thong sandal can be made in different sizes as well as different materials, so that the description of a certain size or a specific material is to be regarded as exemplary only. In the specification and claims, the terms "including," "comprising," "having" are interpreted as "including but not limited to."

A strapless thong sandal comprises a sole, the sole having a toe end and a heel end, and an inside and an outside. The sole has a sole surface extending from the toe end to the heel end and between the toe end

Inside and outside extends. The sole has a sole length L which extends between toe end and heel end. The strapless thong sandal includes a thong and a tab. The thong is closer to the toe end than the toe Heel end of the sole arranged. The thong has a first toe web end connected to the sole and a second toe web end substantially at toe height and carrying the tab. The toe bridge is in the intended use of the toe bridge sandals for inclusion in the

Toe space between two adjacent toes of the user provided. The tab covers the foot when used according to the toe thong sandals at least partially, so that the maximum width of the tab is greater than the maximum width of the second toe web end. The toe bridge has a front and a back, the front being aligned towards the toe end. The back is aligned towards the heel end. The route between the

Front and back is defined as the longitudinal direction, which is arranged parallel to the sole length L. The back extends between the first

The toe web end and the second toe web end, the back having at least one measurement point having a minimum distance a from the toe end, wherein the minimum distance a is measured in a plane parallel to the sole surface, the parallel plane passing through the measurement point. Between the measuring point and one

Flap point, which in the projection on the parallel plane the greatest distance from

Toe end extends a distance b, which is at least 2.5% of the sole length L. According to one embodiment, the distance b may be at least 3% of the

Be sole length, in particular the distance b amount to at least 4% of the sole length, more preferably, the distance b may be at least 6% of the sole length.

According to one embodiment, the distance b may be at least 7.5% of the sole length. According to one embodiment, the distance b may be at least 9% of the sole length. According to one embodiment, the distance b may be at least 11% of the sole length. According to one embodiment, the distance b may be at least 13% of the sole length. According to one embodiment, the distance b may be at least 15% of the sole length. According to one embodiment, the distance b may be at least 17% of the sole length. After one

Embodiment, the distance b may be at least 19% of the sole length. According to one embodiment, the distance b may be at least 21% of the sole length.

Depending on the sole length L of the distance b may be in a range of 7 mm to 60 mm. According to one embodiment, the distance b may be in a range of 10 mm to 60 mm. According to one embodiment, the distance b in a Range from 15 mm to 60 mm. According to one embodiment, the distance b may be in a range of 20 mm to 60 mm. According to one embodiment, the distance b may be in a range of 25 mm to 60 mm. According to one embodiment, the distance b may be in a range of 30 mm to 60 mm. After one

Embodiment, the distance b may be in a range of 35 mm to 60 mm. According to one embodiment, the distance b may be in a range of 40 mm to 60 mm. According to one embodiment, the distance b may be in a range of 50 mm to 60 mm.

The back of the toe bridge extends between the first toe web end and the second toe web end and may have a curvature. This curvature is particularly concave. The curvature has a vertex that thereby

characterized in that its distance from the toe end is minimal, the distance being measured in a plane parallel to the plane of the sole surface. The vertex coincides according to this embodiment with the measuring point. This parallel plane is formed in particular by the horizontal plane.

According to one exemplary embodiment, the toe bridge has an outer side and an inner side, wherein the maximum width of the tab is greater than the greatest distance between the outer side and the inner side of the toe bridge by at least 5 mm in the direction of the width of the tab. In particular, the maximum width of the tab may be at least 10 mm greater than the greatest distance between the outside and the inside of the toe web measured in the direction of the width of the tab. In particular, the maximum width of the tab may be at least 15 mm greater than the greatest distance between the outside and the inside of the toe web measured in the direction of the width of the tab. In particular, the maximum width of the tab can be at least 20 mm larger than the largest distance between the outside and the inside of the

Thong should be measured in the direction of the width of the tab. In particular, the maximum width of the tab may be at least 30 mm greater than the greatest distance between the outside and the inside of the toe web measured in the direction of the width of the tab. Here, the width of the tab is the dimension which the transverse direction of the

Thong sandal corresponds. The transverse direction of the thong sandal is the dimension from the inside to the outside of the sole. The inside of the sole closes the

Inside of the foot. The outside of the sole is used to hold the outside of the foot. Usually, the outside of the sole overhangs the outside of the foot, so that the foot does not come to rest on the outside. Usually, the inside of the sole overhangs the inside of the foot so that the foot does not protrude beyond the inside of the sole. The transverse direction is arranged substantially normal to the longitudinal direction of the toe web sandals. The longitudinal direction extends from the heel end to the toe end of the thong sandal. The toe end and also the heel end of the

Thong sandals usually have a buckle. At the heel end, this arch is essentially the shape of the heel of the foot. The curvature at the toe corresponds essentially to the arrangement of the toes. Each of the bulges thus each has a vertex. If you create a tangent through this vertex, which runs in the plane of the sole surface, a parallel tangent to the opposite curvature can be applied. The normal distance between the two tangents of the curvature at the apex of the toe end and the heel end forms the longitudinal axis of the sole. This longitudinal axis may, but need not, be parallel to the outside or the inside of the sole. The outside or inside of the sole may also have a curvature that substantially follows the footprint.

In particular, the toe bridge sandal of any one of the preceding embodiments may comprise a tab having a first side wing extending from the second toe web end toward the outside of the sole and a second side wing extending from the second toe web end toward the inside of the sole. At least one of the first or second side wings may have a curvature corresponding to the curvature of the foot rest. That is, the tab lies with her soled side on the footrest of the wearer.

The toe bridge extends from the sole surface into a height dimension.

In particular, the toe web may be arranged substantially at right angles to the sole surface. The height of the toe web corresponds accordingly to the distance of the second toe web end from the sole surface. The width of the toe web is accordingly a length dimension of the toe web measured from the inside to the outside of the sole in the plane of the sole surface or a parallel plane to it. The width of the toe web may differ in each parallel plane to the sole surface, which is arranged at different distances from the sole surface. This means that the thong can have a variable width. The length of the thong is the length dimension of the thong in the direction of

Longitudinal axis of the sole, measured in the plane of the sole surface or a parallel plane to it. The width of the toe bridge extends substantially in the normal direction to the length of the toe bridge. If the toe bridge has a circular cross section, the length and width of the toe bridge are the same size and therefore correspond to its diameter.

According to this embodiment, the toe bridge is cylindrical. The length of the thong may differ from the width of the thong. The length and width of the toe web may vary in different parallel planes to the sole surface. For example, the toe bridge may have an oval cross-sectional shape. The toe bridge may be arranged such that the smallest diameter of the substantially elliptical cross section corresponds to the width of the toe bridge. The biggest

Diameter of the substantially elliptical cross section corresponds to the length of the toe bridge.

When the tab projects beyond the length of the thong, the foot is guided and the toe - thong follows the movement of the foot during walking, causing the toe

Abrollvorgang while walking much better can be modeled and the

Comfort of the thong sandal is increased. When viewed from above on the thong sandal, therefore, the back of the thong is covered by the tab. If the tab has a greater width than the toe bridge, at least one of the outer or inner sides of the toe bridge is concealed from above by the tab when viewed on the toe thong.

As a result, the foot is guided in the holding element formed by the sole, thong and strap and the toe strap sandal follows the movement of the foot during walking, whereby the rolling process while walking are much better modeled and the wearing comfort of the toe bridge sandals is increased. In particular, the tab has a

Rear side, wherein the back of the tab has a smaller distance to the heel end than the back of the toe bridge.

In particular, the toe bridge may have a length which is greater than its width. The toe bridge has according to this embodiment, an outside and a

Inner side, wherein the maximum distance between the outside and the inside in the first parallel plane or a second parallel plane to the sole surface of the maximum width of the toe web corresponds, wherein the distance between the measuring point and the associated closest to the toe point of the front of Toe web in the first parallel plane corresponds to the minimum length of the thong, wherein the minimum length of the thong is greater than the maximum width of the thong. Such a toe bridge increases the stability of the position of the foot in the

Thong sandal. The thong prevents slipping of the foot towards the outside or toward the inside of the sole.

According to one embodiment, the tab has a front side which is aligned in the direction of the toe end of the sole. The front of the tab can be flush with the second toe bridge end. As a result, a free mobility of the toes of the wearer of the toe web sandals can be ensured.

The tab has a connecting line between the tab point and the front of the tab, which runs in a normal plane to the sole surface, wherein the

Normal plane is arranged substantially parallel to the sole length L extending. The connecting line may have a length which is at least 7 mm. According to one embodiment, the length of the connecting line is at least 10 mm. According to one embodiment, the length of the connecting line is at least 15 mm. According to one embodiment, the length of the connecting line is at least 20 mm. According to one embodiment, the length of the connecting line is at least 30 mm. According to one embodiment, the length of the connecting straight line is at least 50 mm. According to one embodiment, the length of the

Straight line at least 70 mm.

In one embodiment, the tie line at rest may include an angle with the sole surface or parallel plane that is in the range of -10 degrees to and including 60 degrees. A state of rest is understood to mean a state in which the wearer of the foot stands in the toe sandal so that he exerts a compressive force on the sole surface via the heel. On the one hand, the angle can be selected as a function of the shape of the footrest. On the other hand, the angle can be chosen such that a clamping effect between footrest, tab, toe and sole is generated or the angle can be chosen such that the tab rests on and touches the footrest or the angle can be chosen such that the tab does not rest on the foot rest in the resting state, but a space between the footrest and flap remains. If the angle is in the range of -10 degrees to about 10 degrees, the tab is pressed against the footrest. That is, such a tab can at rest a

Clamping effect on the footrest, whereby the foot in the Thong sandal can be improved. If the angle is within a range greater than 10 degrees to about 20 degrees, the tab rests on the footrest without exerting any appreciable pressure on the footrest at rest. If the angle is greater than 20 degrees, there is a gap between the footrest and the flap in the idle state. According to this embodiment, a padding between Fußrist and tab can be provided so that a particularly soft support for the footrest can be created.

Such elasticity has the effect that the sole of the toe sandals may remain on the ground or near the ground as long as the foot exerts pressure over the toe area on the sole, but has already raised the heel and metatarsus. If the pressure on the ground decreases by lifting the toe area, the sole is brought back to the foot by the restoring force of the toe bridge and / or the flap, at the latest by the time at which the toe bridge sandals has lost contact with the ground. This deflection can, for example, at an angle of the connecting line to

Sole surface at rest from 11 degrees to 46 degrees. That means, the

Inclination angle of the connecting line to one of the parallel planes is, for example, 11 degrees in the idle state, 57 degrees in the deflected state. This deflection can, for example, at an angle of the connecting line to the sole surface in

Hibernate from 16 degrees to 36 degrees. If the inclination angle of the

Connecting straight line to one of the parallel planes therefore at rest is 16 degrees, the inclination angle in the deflected state is 52 degrees. After one

Embodiment, the deflection, for example, at an angle of

Straight line to the sole surface at rest from 21 degrees up to 26 degrees. Therefore, when the inclination angle of the connecting line to one of the parallel planes is 21 degrees at rest, the inclination angle in the deflected state is 47 degrees.

For example, in one embodiment, the deflection may be from 24 degrees to 18 degrees at an angle of the straight line to the sole surface at rest. Therefore, when the inclination angle of the connecting line to one of the parallel planes is 24 degrees in the rest state, the inclination angle in the deflected state is 42 degrees.

In one embodiment, for example, the deflection may be at an angle of the straight line to the sole surface at rest from 27 degrees to 10 degrees be. Therefore, when the inclination angle of the connecting line to one of the parallel planes is 27 degrees at rest, the angle of inclination in the deflected state is 37 degrees.

The tab can buckle in particular during the deflection, that is, the tab is curved in a deflected position with respect to the connecting line. The curvature of the flap may be convex, in particular on the side facing the footrest. This curvature can overlap with the curvature of the side wings, through which the flap is adapted to the curvature of the Fußrists.

According to one embodiment, the tab has a front face that is oriented towards the toe end of the sole, with the front side of the tab flush with the second toe leg end. By avoiding unnecessary edges, the wearing comfort of the toe thong sandals can be further increased.

According to one embodiment, the tab has a first side wing extending from the second toe web end toward the outside of the sole and a second side wing extending from the second toe web end toward the inside of the sole. In particular, at least one of the first or second side wings may have a curvature which corresponds to the curvature of the foot rest.

The toe bridge may be disposed substantially at a right angle to the sole surface. The tab can be arranged approximately at right angles to the toe web.

The sole, the thong or the tab can contain at least one of the materials from the group of plastics, leather, cork, wood. The thong may contain a more elastic material than the flap or sole. The tab may have at least one portion that is softer and more elastic than another portion of the tab. The sole can have an opening or a recess, which is designed to receive a connecting element of the toe web. The toe bridge forms a base, in particular at the first end of the toe bridge. The base may contain the connector. In particular, the connecting element as a fastening part with a

External thread, which can be brought into engagement with a corresponding internal thread of the opening or recess, be designed as a spring element, a latching connection or a snap connection. In particular, the screwing of the

Attachment can be varied in the opening or recess, so that the distance of the Flap of the sole is changeable. As a result, the toe bridge can be adapted to the foot shape, so that an optimal hold of the thong sandals is possible without the formation of pressure points.

The sole can contain an insert element according to one embodiment. The

Insertion element may be formed as a stabilizing element, a reinforcing element or a damping element.

The sole can according to one embodiment include a footbed, a bridge plate and an outsole. In particular, the toe web and the web plate can be integrally formed. The toe bridge can according to this embodiment in

assembled state can be passed through an opening of the footbed.

The toe bridge may according to an embodiment between the first toe web end and the second toe web end contain a profiling to increase the elasticity. The profiling can contribute in particular to increase the elasticity when walking by the rolling motion can be realized during walking in an improved manner by the co-movement of the sole and the elasticity of the force required to produce the rolling motion is further reduced because the sole on the Lower foot is better.

In one embodiment, the tab, thong, or sole may include a non-slip material. As a result, the frictional resistance between the foot and the contact surfaces of the toe bridge sandals is increased with the foot, whereby an improved slip resistance can be achieved. The non-slip material may comprise a structuring of the surface, the contact surface, a leather or a textile material. The non-slip materials can be combined in any way.

According to one embodiment, the sole surface may contain a structure, for example a projection, by means of which in particular the hold of the toes on the sole surface can be improved. The structure may, for example, comprise a bead which extends from the toe bridge in the direction of at least one of the outer sides or inner sides of the sole.

According to one embodiment, the toe bridge may be extended to the toe end. According to this embodiment, the toe web has an increased stiffness relative to the tab, so that the toe web maintains its position when the tab buckles at the deflection. The deflection is done by lifting the heel off the ground and from the sole at the beginning of the walking movement. Since the thong according to this

Embodiment does not change its position with respect to the sole and the sole surface, this has the consequence that the tab in a deflected position around a

Curved or kinked measuring point, which is located on the second toe web end on the back. To determine the deflection, a connecting line is determined, which connects the measuring point on the back of the second toe web end with the tab point, which has the greatest distance from the toe end. After this

Embodiment, the tab may have an elasticity that allows a deflection of the connecting line by an angle of up to 115 degrees relative to the rest position.

In particular, the deflection can be up to 85 degrees, in particular up to 60 degrees,

in particular up to 40 degrees, in particular up to 25 degrees, in particular up to 15 degrees, in particular up to 5 degrees.

A method for producing a toe bridge sandal according to one of the preceding embodiments, the production of at least the sole and / or the

Toe web and / or the tab in a multi-component injection molding process.

A method of manufacturing a toe bridge sandal according to one of the preceding embodiments may comprise a processing step by means of which a sole and / or a toe bridge and / or a tongue adapted to the anatomical shape of the foot can be obtained on the basis of an image of the foot. The image of the foot can be obtained by means of a 3D scan method.

When using a strapless thong sandal according to one of the preceding embodiments, the angle between the sole and strap can change when walking. The angle change can be in the range of 10 to 115 degrees inclusive.

An advantage of the inventive solution, in particular according to each of

Embodiments is that it does not require a strap, the foot provides support, is comfortable and comfortable to wear and (in contrast to the Paduka sandal) allows a rolling movement.

The inventive thong sandal according to one embodiment is without straps, thus has no tethers, on the one hand, because it also provides otherwise good support by their construction, on the other hand, because a strapless design possible, caused by the tether chafing at the foot and Fußrist avoids. According to one exemplary embodiment, the strapless thong sole comprises a sole, at least one thong, and a tab which projects backwards beyond the instep of the wearer and bears against the foot. The toe bridge sandal contains or consists according to an embodiment of plastic and / or leather and / or wood and / or cork. The sole can be constructed in one or more layers. It is firmly connected according to this embodiment with the toe and this in turn with the tab in the use state of the sandal, so that sole, toe and tab in side view of the sandal approximately form a U-shape, in particular an approximately U-shaped, the foot holding structure form. Thus, the foot is always held by the bottom sole and tab at the top and by the toe bridge at the front when unrolling.

The toe bridge may be mounted in the sole at an approximately right-angle upwards and have a tab mounted on the at least one toe bridge and projecting at approximately right angles from the at least one toe bridge.

The tab can protrude so far back that it rests on the footrest of the wearer for a quarter to three quarters of the instep length.

By choosing the appropriate material, the angle between the two legs of the U-shape forming the sole and the tab can be flexibly opened between 5 and 55 degrees, preferably between 10 and 45 degrees and more preferably between 15 and 35 degrees and close again. The sole and / or the at least one toe bar and the tab are according to this

Embodiment anatomically formed and the tab therefore adapts to the changing curvature of Fußrists when walking. The tab forms according to a

Embodiment contact surfaces to the foot, which fit snugly on the foot. The

anatomical shaping of at least one of the parts as well as the U-shape construction cause that when rolling the foot, the sole is also raised and also that a rotation of the foot in the sandal is largely prevented.

The embodiments of the thong sandal additionally provide stability and comfort while walking and minimize the risk of slipping out, and twisting the foot in the sandal. According to one embodiment, the sole may have an all-round limited opening in its front part, which has a thread inside a locking part or a fastening part, which cooperates with a corresponding fastening part at the base of the at least one toe web.

According to one embodiment, the multilayer sole consists of three layers, which, seen from the bottom up, comprise an outsole, a bridge plate and a footbed. The at least one toe bridge according to this embodiment with the middle layer, so the web plate, integrally connected and passed through a hole or slot-like opening in the front part of the footbed through the footbed upwards.

In particular, the web plate can be formed only in the front region of the sole. According to one embodiment, the web plate may include the entire sole, wherein it may be rear thinner or more elastic than the front, that is, at the heel end has a smaller wall thickness than at the toe end.

The web plate can be reinforced by at least one insert plate, in particular made of metal or plastic. The web plate, the at least one toe web and the tab can be made together in one piece in the multi-component plastic injection molding process, so that their respective elasticity and hardness, even within these parts, can be varied.

According to one embodiment, a single-layered sole can be reinforced by at least one plate, for example made of metal or plastic. According to one embodiment, the at least one toe bridge to increase the elasticity when unrolling in the frontal area have slots or be formed as a sole and tongue elastic.

The distance between the tab and the sole can be individually adapted to the height of the support foot by a screw thread or by a spring in at least one toe bridge, so that the tongue and the sole provide additional hold by variable contact pressure from above and below the foot.

The sole and / or the at least one toe bar and / or the tab for increasing the slip resistance of the foot in the sandal can be structured at least at the respective contact surface to the foot or lined with leather or a textile material. Hereinafter, some embodiments of a strapless thong sandal will be described in more detail with reference to the drawing. Show it

1 is an exploded view of a first embodiment of the toe bridge sandals,

FIG. 2 shows a perspective view of the toe web sandals of FIG. 1, FIG. 3 shows an exploded view of a second embodiment of the toe web sandals,

FIG. 4 is a perspective view of the toe bridge sandals of FIG. 3;

5 shows a section through a third embodiment of the toe bridge sandals,

FIG. 6 shows a side view of a fourth embodiment of the toe bridge sandal,

7 shows a side view of a fifth embodiment of the toe bridge sandals, FIG. 8 shows a section through a sixth embodiment of the toe bridge sandals.

1 shows a strapless thong sandal 1 comprising a sole 10, the sole 10 having a toe end 11 and a heel end 12 as well as an inner side 14 and an outer side 13. The sole 10 has a sole surface 16 which extends from the toe end 11 to the heel end 12 and between the inner side 14 and the outer side 13. On the sole surface 16 opposite side of the sole is the

Running surface 26. The running surface 26 may be provided with a structure, not shown, such as ribs, grooves, studs or the like, for improved adhesion to a substrate. The sole has a sole length L which extends between toe end 11 and heel end 12. The toe bridge sandals 1 comprises a toe bridge 3 and a tongue 4, wherein the toe bridge 3 is arranged closer to the toe end 11 than to the heel end 12 of the sole. The toe bridge 3 has a first toe web end 31, which is connected to the sole 10. The toe bridge 3 has a second

Toe web end 32, which is located substantially at toe height and the tab 4 carries. The toe bridge 3 is arranged for use in the toe space between two adjacent toes of the user when using the toe bridge sandals as intended. The tab 4 covers when used according to the toe strap sandals the foot at least partially, so that the maximum width of the tab 4 is greater than the maximum width of the second toe web end 32. The thong has a front 33 and a back 34. The front 33 is oriented toward the toe end 11 and the distance between the front 33 and the back 34 is as the Defined longitudinal direction, which is arranged parallel to the sole length L. The rear side 34 is aligned in the direction of the heel end 12. The rear side 34 extends between the first toe web end 31 and the second toe web end 32, the back 34 having at least one measurement point 39 having a minimum distance a from the toe end 11, the minimum distance a being measured in a first parallel plane 6 to the sole surface 16, wherein the first parallel plane 6 passes through the measuring point 39.

Between the measuring point 39 and a tab point 45, a distance b is defined which has the greatest distance from the toe end 11 in the projection onto the first parallel plane 6, the distance b being at least 2.5% of the sole length L. In particular, the length of the flap 4 may be measured from the front 41 to the back 42, the length being measured in a sectional plane normal to the sole surface 16 and containing the longitudinal axis. The sole surface 16 is bounded laterally by the toe end 11, the heel end 12, the outside 13 and the inside 14 of the sole 10. The sole surface 16 is at least temporarily in contact with the underside of the foot in the state of use of the toe bridge sandals. The

Sole surface 16 may have areas of different heights so that it conforms to the foot shape of the user. The sole surface 16 may have a shape corresponding to the anatomy of the foot.

The longitudinal direction extends from the heel end 12 to the toe end 11 of FIG

Toe Bridge Sandals 1. The toe end 11 and also the heel end 12 of the toe bridge sandals 1 usually have a curvature. This curvature corresponds at the heel end 12 substantially the shape of the heel of the foot. The curvature at the toe end 11 essentially corresponds to the arrangement of the toes. Each of the vaults thus has one each

Vertex on. If you put a tangent through this vertex, which runs in the plane of the sole surface, a parallel tangent to each

opposite curvature in the plane of the sole surface are created. The normal distance between the two tangents of the vault at the vertex of the

Toe end 11 and the heel end 12 forms the longitudinal axis of the sole. These

The longitudinal axis may, but need not, be parallel to the outside 13 or the inside 14 of the sole 10. The outer side 13 or inner side 14 of the sole 10 can also have a curvature which essentially follows the footprint.

Here, the width of the tab 4 is the dimension which the transverse direction of the

Thong sandal corresponds. The transverse direction of the thong sandal is the dimension of the inner side 14 of the sole 10 adjoins the inner side of the foot 10. The outer side 13 of the sole 10 serves to receive the outside of the foot. Usually, the outside 13 of the sole 10 projects beyond the outside of the foot, so that the foot does not come to lie on the outside 13. Usually, the inside 14 of the sole 10 projects beyond the inside of the foot, so that the foot does not protrude beyond the inside 14 of the sole. The transverse direction is arranged substantially normal to the longitudinal direction of the toe web sandals 1. The tab 4 has a front side 41, which is aligned in the direction of the toe end 11 of the sole 10, wherein the front side of the tab can be flush in the second toe web end 32. The tab 4 has a rear side 42, wherein the rear side 42 of the tab 4 has a smaller distance to the heel end 12 than the rear side 34 of the toe web 3. In particular, the tab 4 has a first side wing 43 extending from the second toe web end 32 in the direction the outer side 13 of the sole 10 extends and a second side wing 44 which extends from the second toe web end 32 in the direction of the inner side 14 of the sole 10. At least one of the first or second side wings 43, 44 may have a curvature corresponding to the curvature of the foot rest. The tab 4 may be arranged approximately at right angles to the toe web 3.

The toe bridge 3 has an outer side 36 and an inner side 37. The outer side 36 of the toe web 3 is directed in the direction of the foot outer side or the outer side 13 of the sole 10, the inner side 37 is aligned in the direction of the inner side of the foot or the inner side 14 of the sole 10. The width of the tab 4 is greater by at least 15 mm than the greatest distance between the outer side 36 and the inner side 37 of the toe web 3 measured in the direction of the width of the tab 4th

In particular, the toe bridge 3 can be substantially at a right angle to

Sole surface 16 of the sole 10 may be arranged.

The first toe web end 31 forms a base. The base of the toe web 3 includes a connecting element 5, which may include a fastening part 35, such. B. a

Screw thread, a spring element, a latching connection, a snap device, wherein the connecting element 5 can cooperate with corresponding fastening elements in an all-round limited opening or recess 15 in the sole 10. Also visible is the anatomical shape of the flap 4, which has a shape corresponding to the anatomy of the foot, which corresponds to the curvature of a foot rest. The tab 4 protrudes in particular to the rear, ie in the direction of the heel end, approximately in the right Angle to thong 3 over a quarter to three quarters of the footrest. The tab 4 offers in particular by the first and second side wings 43, 44 the forefoot support surface and support and supports it from above.

The embodiment shown in Figures 3 and 4 shows the toe bridge sandals 1 with a three-layer sole, which is composed of a lower, referred to as outsole 19 layer, a middle, designated as web plate 18 layer and an upper, called footbed 17 layer, wherein the web plate 18 is permanently connected to the toe web 3. The toe bridge 3 is guided through a hole or slot-like opening 25 in the footbed 17 upwards. To increase the elasticity during unwinding of the toe web 3 may include a more elastic material than the flap 4 or the sole 10 or the footbed 17, the web plate 18 or the outsole 19 or in particular consist of a more elastic material. According to one embodiment, the toe web 3 between the first toe web end 31 and the second toe web end 32 may include a profiling 38 to increase the elasticity. The profiling may include an element from the group of cuts or slots. The profiling may be attached to the front 33 of the toe web 3, that is to say aligned in the direction of the toe end 11. The increase in elasticity can

in particular, improve the rolling motion while walking. In particular, the

Comfort of the toe bridge sandals can be increased by the use of a profiling 38.

To increase the stability when twisting the foot, the toe bridge 3 can also be extended so that it largely fills the space between the big and second toe. Or there may be several toe ridges 3 that protrude between the individual toes, which is not the norm. FIG. 5 shows a strapless thong-type sandal according to a third embodiment in a side view. The toe bridge sandals illustrated in Figure 5 are different from previous embodiments in that they are made in one piece. That is, the sole 10, the thong 3 and the tab 4 are made of the same material or

Material combination. Same or equivalent partial elements carry the same

Reference numerals as in the previous representations.

Figure 6 is a side view of a fourth embodiment of the toe bridge sandals, according to which the toe web 3 at the first toe web end 31 has a base which a Attachment 45 has, which is provided with an external thread. The external thread is attached to a at the opening 15 of the sole 10

Internal thread in connection. The toe bridge 3 and the tab 4 are thus connected to the sole 10 via the screw connection. On the one hand, it is possible to exchange the toe bar 3 and the tab 4. For a sole 10 can be shaped differently

Toe webs 3 and / or tabs 4 are used. This means, on the one hand, that the toe bar 4 and the tab 4 can be combined with a different sole 10, or vice versa, a sole 10 can be combined with different toe bars 3 and / or straps 4. For example, soles 10, toe straps 3 or straps 4 of different shapes or colors or consisting of different materials can be combined. On the other hand, the distance between the sole surface 16 and tab 4 can be changed. This can be achieved by varying this distance

For example, changes in the shape of the foot are taken into account, for example, when the thong sandal is worn by another person. The thong sandal can also be adapted to swelling of the foot, so that the

Thong sandal according to this embodiment, even with weather-related or disease-related changes in the foot shape of the wearer can provide the same comfort.

Figure 7 shows a side view of a fifth embodiment of the toe bridge sandals 1. It differs from the fourth embodiment in that the sole 10 includes an insert element 2, for example a stabilizing plate or a reinforcing plate 20. Such a stabilizing plate or reinforcing plate can be surrounded, for example, as a core element by a footbed 17 on the one hand and an outsole 19 on the other hand. In particular, the stabilizing element or reinforcing element may contain a different material than the footbed 17 or the outsole 19. Such a

Stabilizing element or reinforcing element may contain at least one element from the group of metals, plastics, woods or cork. The insert element 2 may also be formed as a damping element or contain a damping element.

For example, the insert element 2 may contain a cavity, which is a

Compressible medium contains, for example, a gas or a spring element.

When produced in the known multi-component plastic injection molding process web plate 18, toe web 3 and tab 4 may be integrally formed as a unit and different hardnesses and elasticities, even within these three parts have. So For example, the flap 4 may be softer and more elastic in one area, harder and less resilient in another area, to improve the wearing comfort.

The toe bridge 3 may be anatomically designed for each of the embodiments to counteract a twisting of the foot in the sandal and to avoid chafing in the toe space as possible. An anatomically shaped tab 4 provides additional stability when lifting and rolling the foot, because the forefoot is also held by the well-distributed contact pressure from above through the tab and from below through the sole 10 and the footbed 17. An anatomically shaped sole 10 or an anatomically shaped footbed 17 helps to center the foot in the middle of the sole 10 and to prevent twisting of the foot in the toe strap sandal 1.

It is also conceivable to detect the foot of the potential wearer with a known SD scan method and thus to effect a tailor-made anatomical shaping of the sole / footbed, thong or tongue.

A lining of sole 10 or footbed 17 and / or tongue 4 and / or toe bridge 3 with a non-slip covering such as leather or a textile material, or a textured (eg roughened) surface of sole / footbed 10, 17 and / Tab 4 can serve to make it difficult to slip out of the toe thong by greater adhesion to the foot.

To satisfy aesthetic needs, the sole 10, the thong 3 or the flap 4 may be provided with ornaments, or the flap 4 may for example have a special shape or be open in its central part. Alternatively or in

In addition, sole 10, thong 3 or flap 4 may contain a fluorescent material or illuminant. The bulbs can be activated when moving.

Fig. 8 shows an embodiment of a toe bridge sandals 1, according to which the toe bridge 3 is extended to the toe end 11. According to this embodiment, the toe web 3 relative to the tab 4 of increased rigidity, so that the toe web 3 maintains its position when the flap 4 bulges during the deflection. The deflection is done by lifting the heel off the ground and from the sole at the beginning of the

Walking motion. Since the toe bridge 3 according to this embodiment does not change its position with respect to the sole 10 and the sole surface 16, this results in the flap 4 being bent or kinked in a deflected position about a measuring point 49 located at the second toe bridge end 32 on the back 34 is located. to Determining the deflection, a connecting line 47 is determined, which the

Measuring point 49 connects at the rear 34 of the second toe web end 32 with the tab point 45, which has the greatest distance from the toe end 11. After this

Embodiment, the tab 4 may have an elasticity that allows a deflection of the connecting line 47 by an angle of up to 115 degrees relative to the rest position. In particular, the deflection can be up to 85 degrees, in particular up to 60 degrees, in particular up to 40 degrees, in particular up to 25 degrees, in particular up to 15 degrees, in particular up to 5 degrees.

It will be apparent to those skilled in the art that many other modifications are possible in addition to the described embodiments without departing from the inventive concept. The object of the invention is thus by the foregoing

Description is not limited and is determined by the scope defined by the claims. The widest possible reading of the claims is decisive for the interpretation of the claims or the description. In particular, the terms "contain" or "include" should be interpreted as referring to elements

To refer to components or steps in a non-exclusive sense, which is intended to indicate that the elements, components or steps may be present or may be used to be combined with other elements, components or steps that are not explicitly mentioned. If the claims refer to an element or component from a group which may consist of A, B, C ... N elements or components, that formulation should be interpreted as requiring only a single element of that group, and not a combination of A and N, B and N, or any other combination of two or more elements or components of this group.

Claims

claims

A strapless thong sandal (1) comprising a sole (10), the sole

(10) has a toe end (11) and a heel end (12) and an inner side (14) and an outer side (13) and a sole surface (16) extending from the toe end (11) to the heel end (12) and between the inside (14) and outer side (13), the sole having a sole length L extending between toe end (11) and heel end (12), comprising one

Toe bridge (3) and a tab (4), wherein the toe bridge (3) closer to the toe end

(11) being disposed at the heel end (12) of the sole, the toe bridge (3) having a first toe web end (31) connected to the sole (10) and having a second toe web end (32) substantially in

Toe height is and carries the tab (4), the toe bridge (3) in the intended use of the toe bridge sandals for recording in

Toe space between two adjacent toes of the user is arranged, wherein the tab (4) in the intended use of the

Toe web sandal at least partially covers the foot, so that the maximum width of the tab (4) is greater than the maximum width of the second toe web end (32), the toe web having a front (33) and a back (34), the front (33 ) is directed towards the toe end (11), the back (34) being oriented towards the heel end (12) and the distance between the front (33) and the back (34) being defined as the longitudinal direction parallel to the toe end (34) Sole length L is arranged, wherein the rear side (34) between the first toe web end (31) and the second toe web end (32), wherein the back (34) has at least one measuring point (39) having a minimum distance a to the toe end (11 ), wherein the minimum distance a in a first parallel plane (6) to the sole surface (16) is measured, wherein the first parallel plane (6) passes through the measuring point (39), characterized in that zw a distance b is defined at the measuring point (39) and a tab point (45), which has the greatest distance from the toe end (11) in the projection onto the first parallel plane (6), wherein the distance b is at least 2.5% of the

Sole length L is. Toe web sandal (1) according to claim 1, wherein the distance b is at least 3% of the sole length L, in particular the distance b can amount to at least 4% of the sole length, particularly preferably the distance b can amount to at least 6% of the sole length.

Toe bridge sandal (1) according to one of the preceding claims, wherein the toe web (3) has an outer side (36) and an inner side (37), wherein the maximum width of the tab (4) by at least 5 mm larger than the largest distance between the outer side (36) and the inside (37) of the toe web (3) measured in the direction of the width of the tab (4).

A toe bridge sandal (1) according to any one of the preceding claims, wherein the tab (4) has a first side wing (43) extending from the second toe web end (32) towards the outside (13) of the sole (10) and a second side wing

Side wing (44) extending from the second toe web end (32) in the direction of

Inner side (14) of the sole (10) extends.

A toe bridge sandal according to claim 4, wherein at least one of the first or second side wings (43, 44) has a curvature corresponding to the curvature of the foot rest.

Toe web sandal (1) according to one of the preceding claims, wherein the toe web (3) has an outer side (36) and an inner side (37), wherein the maximum distance between the outer side (36) and the inner side (37) in the first parallel plane ( 6) or a second parallel plane to the sole surface (16) of the maximum width of the toe web (3), wherein the distance between the measuring point (39) and the associated closest to the toe end (11) point of the front side (33) of the thong (3) in the first parallel plane (6) corresponds to the minimum length of the toe bar (3), wherein the minimum length of the toe bar (3) is greater than the maximum width of the toe bar (3).

A toe bridge sandal (1) according to any one of the preceding claims, wherein the tab (4) has a front face (41) oriented towards the toe end (11) of the sole (10).

A toe bridge sandal (1) according to claim 7, wherein the front face (41) of the flap (4) merges flush with the second toe leg end (32).

9. Toe web sandal (1) according to one of the preceding claims 7 or 8, wherein the tab (4) has a connecting line (46, 47) between the tab point (45) and the front side (41) of the tab (4) or the back (34 ) of the second toe web end (32) extending in a normal plane to the sole surface, the normal plane being disposed substantially parallel to the sole length L.

10. Toe web sandal according to claim 9, wherein the connecting line (46, 47) in

Resting an angle with the sole surface (16) or one of the

Parallel planes (6) ranging from -10 degrees to 60 degrees inclusive.

11. Toe web according to one of claims 9 or 10, wherein the tab (4) a

Has elasticity, a deflection of the connecting line (46, 47) by an angle of up to 115 degrees relative to the rest position permits.

12. Toe walk sandal according to one of the preceding claims, wherein the toe web

(3) is disposed substantially at a right angle to the sole surface (16).

13. toe web sandal according to one of the preceding claims, wherein the tab (4) is arranged approximately at right angles to the toe web (3).

14. Toe web sandal (1) according to one of the preceding claims, wherein the sole (10), the toe web (3) or the tab (4) at least one of the materials from the group of plastics, leather, cork, wood.

15. toe web sandal (1) according to any one of the preceding claims, wherein the

Thong (3) contains a more elastic material than the flap (4) or the sole (10).

16. Toe web sandal (1) according to one of the preceding claims, wherein the tab

(4) or the toe bridge (3) has at least one region which is softer and more elastic than another region of the tongue (4) or the toe bridge (3).

17. Toe web sandal (1) according to one of the preceding claims, wherein the sole (10) has an opening or a recess (15) which is designed to receive a connecting element (5, 35, 45) of the toe web (3).

18. Toe web sandal (1) according to claim 17, wherein the connecting element (5) at least one element from the group of a fastening part (45) with a

External thread, which with a corresponding internal thread of the opening or recess (15) is engageable, a spring element, a

Locking connection, a snap device contains.

19. Toe web sandal (1) according to claim 18, wherein the screwing of the

Fastening part (45) in the opening or recess (15) is variable, so that the distance of the tab (4) from the sole (10) is variable.

20. toe bridge sandal (1) according to any one of the preceding claims, wherein the sole (10) comprises an insert element (2, 20).

21, toe web sandal (1) according to claim 20, wherein the insert element (2, 20) may be formed as a stabilizing element, a reinforcing element or a damping element.

22. Toe thong (1) according to one of the preceding claims, wherein the sole (10) comprises a footbed (17), a web plate (18) and an outsole (17).

23. toe web sandal (1) according to claim 22, wherein the toe web (3) and the web plate (18) are integrally formed.

24. toe bridge sandal (1) according to claim 23, wherein the toe bridge (3) in

assembled state through an opening (25) of the footbed (17)

passed through.

25. Toe web sandal (1) according to one of the preceding claims, wherein the

Toe bridge (3) between the first toe web end (31) and the second

Toe web end (33) has a profiling (38) to increase the elasticity.

A toe bridge sandal (1) according to any one of the preceding claims, wherein the tab (4), toe thong (3) or sole (10) comprise a non-slip material.

27. Toe web sandal (1) according to any one of the preceding claims, wherein the

Sole surface (16) contains a structure.

A toe bridge sandal (1) according to claim 27, wherein the structure comprises a bead which extends from the toe web (3) towards at least one of the outer sides (13) or inner sides (14) of the sole (10).

29. A method for producing a toe bridge sandal (1) according to any one of the preceding claims, wherein at least the sole (10) and / or the

Thong (3) and / or the tab (4) in one

Multi-component injection molding are made.

30. A method for producing a thong sandal (1) according to one of

preceding claims, wherein a to the anatomical shape of the foot adapted sole (10) and / or toe bridge (3) and / or flap (4) is obtained by means of an image of the foot.

31. The method of claim 30, wherein the image of the foot is obtained by a 3D scanning method.

32. Using a strapless thong sandal (1) after one of

preceding claims, wherein when walking the angle between the sole (10) and flap (4) changes.

33. Use of the toe bridge sandals (1) according to claim 32, wherein the angle change is in the range of 10 to 115 degrees.