EP1761316A2

EP1761316A2 - Skate shoe

Info

Publication number: EP1761316A2
Application number: EP05763441A
Authority: EP
Inventors: Rainer Maiores
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-09
Filing date: 2005-06-09
Publication date: 2007-03-14
Also published as: WO2005120664A3; DE102004027921A1; CN1988938A; AU2005251858A1; US20080256831A1; CA2582260A1; WO2005120664A2; DE112005001940A5

Abstract

The invention relates to a shoe comprising at least two rotatable wheels which are arranged on at least one axle oriented essentially transversally to the longitudinal direction of the shoe or transversally to the direction of displacement. At least one axle respectively carries at least one wheel and is fully or partially embedded in the sole of the shoe. The axles are arranged only in the third of the sole of the shoe which begins in the heel region, and the arrangement of the axles and the size of the wheels are measured in such a way that the sole of the shoe ensures an at least partially flat tread in the region which is not provided with any axles or wheels. The wheels can be lowered (skating position) and lifted (walking position) very rapidly by the user by means of a rapid lifting device, in such a way that the shoe can be used in the walking position for walking or running.

Description

Skate

The invention relates to a shoe with two or more rotatable rollers which are arranged on one or more axes, the axes being oriented essentially transversely to the longitudinal direction of the shoes or transversely to the running direction.

Roller skates are known from the prior art, which can either be detachably connected to ordinary shoes by means of a frame which can be sounded, or which are screwed to the shoes by a frame which rests on the underside of the shoe sole. The so-called inline skates could be seen as a further development of the second version. These are shoes that are firmly or detachably connected on the underside with a series of “in line” rollers. Both inline skates and roller skates have in common that you can only ride.

Shoes in which two or more rollers are arranged one behind the other in the direction of movement are particularly widespread. The advantage of this arrangement is that the user learns to stand safely on the roller skates in a short time even without lengthy practice. If at least two rollers are arranged next to one another as seen in the direction of travel and - as mentioned above - at least two rollers are also arranged one behind the other, a stable stand is possible.

The disadvantage of this arrangement is that only rolling movements with the shoe are possible. To accelerate, as to generate a forward force component, the

Roller skate users the ability to change the direction of travel of both roller adjust the shoes slightly outwards from the main direction of movement so that both roller skates move away from each other. During this phase, the user must exert muscle forces that spread his legs and thereby exert a force on the roller skates that is oriented obliquely to their current direction of travel. The portion of this force that is oriented in the direction of travel accelerates the roller skates and thereby also the user standing on them.

For decelerating, the same method can be used as for accelerating with different driving directions for the left and right shoes. If z. B. move the shoes away from each other, the user must counteract the spreading exerted by the roller skates on his legs with muscle power.

However, the accelerations and decelerations achieved are comparatively low. Therefore, this method is not very common in the practical use of roller skates. On the other hand, it is used in so-called snake boards.

However, by the nature of human walking and running, this type of acceleration and deceleration contradicts the basic habits of a person when moving. Rather, people are used to it

Shifting weight to just one leg while stretching the other leg in the direction of movement. When the desired step distance is reached, the weight is shifted to the other leg and the former is relieved and stretched forward again. A "walking" movement is only possible to a limited extent, as the rollers provided at each of the important support points of the foot prevent the foot from pushing off on the solid surface. It is therefore sensible not to wear roller skates or inline skates on buses and trains Stepping on stairs with roller skates or inline skates can be avoided due to the risk of falling. Even in department stores or pedestrian zones, people who wear roller skates or inline skates can be dangerous because these sports equipment allows a quick and reliable stopping if necessary for very experienced people.

Against this background, the object of the invention consists in the construction of a shoe which can be used both as a driving and playing device and as a fitness device and which, in addition to the moving movement, also permits a walking or running movement and enables rapid braking.

For inexperienced users and for busy areas, it is a great advantage if the shoe according to the invention can be changed in a very short time without a special tool, even by inexperienced users, so that the rollers touching the ground when the heel area is lowered can be raised to such an extent that they no longer touch the ground during a normal walking or running movement. The roles should remain on the shoe. Another alternative is the roles or the roles with theirs

Remove axles or a frame to which axles and rollers are attached from the shoe and hand these parts over to the user for transport and storage.

To achieve the object, the invention teaches a shoe, which is characterized in that one or more axes, each because they carry one or more rollers, are wholly or partially embedded in the shoe sole in the vertical direction, and the axes lie only in the third of the shoe sole that begins with the heel area of the shoe sole, the arrangement of the axes and the size of the rollers being so dimensioned is that the shoe sole ensures an at least partially flat appearance in the area not provided with axles and rollers.

The axles loaded with rollers are embedded in the rear of the shoe sole, i.e. in the heel area or in the heel. The "heel area of the shoe sole" in the sense of this invention can, depending on the type of shoe, extend from the rear, downward end of a shoe to beyond the first third lying in the running direction. In the case of platform shoes which do not have a clear division between the heel and the front part of the

Having the sole of the shoe, the heel area / heel of the sole can also extend to the middle of the sole in the sense of the invention.

With a correspondingly small roller diameter, it is possible that the shoe hardly has a small roller diameter, it is possible that the shoe hardly increases (high-heeled shoe effect). Since the axles with the rollers rotatably mounted thereon only in the rear part, i.e. H. preferably in the area of the heel, the front area of the shoe sole remains for the non-slip appearance.

The main idea of the invention is that the wearer of a left-hand and right-hand shoe according to the invention, each have the features described in the claims, can gain momentum through an introductory running movement and can convert this momentum into a moving movement by shifting weight towards the heel area.

The user can therefore achieve the desired speed by walking and / or running (only on the front area of the shoes). Then he lowers the rear area of the shoes and lifts the front area of the shoes. In this state, only the rollers of the shoe according to the invention touch the surface. The kinetic energy stored in the mass of the human body now provides propulsion.

It is up to human beings to delay this movement

The closest walking and walking habits are that the user of the shoes according to the invention lowers the front area of the shoes onto the surface. As soon as the surface touches the ground, the user must suddenly change to a running or walking movement corresponding to the speed. This transition requires a certain amount of training to keep your balance even in the transition phase. For this reason, it is pointed out that shoes according to the invention with firmly mounted rollers should not be used in means of transport such as buses and trains, on stairs or in busy areas such as pedestrian zones or rows of shops.

This recommendation is intended especially for completely inexperienced or only inexperienced users.

The wearer of the shoes can also initiate the swing through a wobbling movement, as is known from the snake board. To stabilize the position while driving, die the legs, as seen in the direction of travel, are offset from one another. Braking takes place by shifting weight from the heel area of the shoe sole in the direction of the soccer ball until the shoe sole, which is free in this area, ie not provided with wheels, comes into contact with the solid surface. As an alternative to the gradual braking, it is possible to switch from the moving movement to a running movement at a correspondingly low driving speed. A quick braking is also possible by tipping the heel edge of a shoe. The angle of attack during this braking maneuver depends on the position of the axle, ie the further it is from the rear shoulder edge, the smaller the backward movement of the shoe required for braking.

By shifting weight in the heel area during the

Driving with the shoes according to the invention strains muscles that are not trained during normal walking or skating. This particularly affects the muscle areas of the thighs, calves, abdomen and back. This makes the shoes suitable in principle for use in leisure sports, such as. B. for

Aerobic exercises, and also for orthopedic gymnastics exercises.

For the skate shoe according to the invention, which, as described, has hermaphroditic properties, in principle any type of shoe is possible, i. H. Running shoes, casual shoes, low shoes, ankle boots, cowboy

Boots, women's shoes, high heels or even flip-flops conceivable. Ideally, the sole of the shoe, especially in the heel area, has the strength and stability required to accommodate the axles. In principle, however, the axles can also be attached to thinner soles. Sports and leisure shoes with rubber soles are particularly suitable. A certain type of these casual shoes, which are currently worn especially by younger buyers, is characterized by the fact that the sole has no recognizable transition between the heel area (heel) and the rest of the shoe sole. When we speak of the heel area in the context of this application, we mean the part of the shoe sole that begins with the rear edge of the heel and extends at least to the point on the shoe sole that is marked by the imaginary vertical extension of the shin ,

It is within the scope of the invention that the axles are designed either as continuous axles or as axle sections. While ¹ the continuous axles span the entire width of the shoe sole in the heel area, the axle sections are embedded in the shoe sole with an end section that ends blindly. The fastening within the shoe sole can be done by a thread. The outer ends of the axles either have a thread or a plug-in option, by means of which it is possible to secure the roller which is respectively attached to the axle. The casters mounted on protruding axle sections protrude laterally beyond the shoe and at least widen the shoe by

Width of the rolls.

In an alternative embodiment, two rollers which are fixed on both sides of the shoe sole are mounted on two axes which are offset from one another in the horizontal direction of the shoe sole. Through the Displacement of the axes, the position in the moving position is advantageously more stable.

In a further development of the invention it is provided that a total of three rollers are attached to each shoe. Two of the rollers are fastened on both sides of the heel of the shoe and another third roller is fastened on the outside in the area of the shoe sole in which the 'heel area merges with the rest of the shoe sole. The attachment of three rollers per shoe in this way has the advantage that even the less experienced shoe wearer can travel longer distances with the shoes because he is in a more stable position. By being able to move part of the weight towards the ball of the foot, i.e. H. To shift the front area of the shoe sole, the requirements for balance when driving are no longer as high as, for example, with a continuous axle with two rollers.

In principle, more than three rollers can of course also be attached to the heel of the shoe sole.

In a preferred embodiment, it is conceivable that the two rollers fastened in the area of the shoe heel have a larger diameter than the third or any further roller attached in the front third of the heel area. If the axles are connected to the shoe sole at the same height, the rollers with the larger diameter protrude more beyond the lower edge of the shoe sole, so that the shoe is slightly inclined forward.

It is within the scope of the invention that the axles, regardless of whether they have a continuous or blind end, are fixed or releasably connected to the sole. The continuous axes can be fastened in an opening extending through the sole of the shoe or in a groove-like depression. The depth of the groove-like depression in the vertical direction of the shoe sole can be variable. The attachments Gung the continuous axis in a groove-like recess is also associated with the advantage that the axis together with the rollers attached to it can be removed from the shoe. If the rollers are supported on blind-ended axles, openings corresponding to the outer shape of the axle shape are provided in the shoe sole. To fasten the blindly ending axes, the openings can have threads which can be screwed in.

In order to change the sole in the area of the heel as little as possible by attaching the axles, the axles are provided directly on the surface of the shoe sole by means of corresponding fastening elements known to the person skilled in the art.

In a further development of the invention it is provided that the shoe sole has cutouts in the heel area which are used to hold the rollers in the manner of a fender. It is thereby advantageously achieved that the rollers do not lead to the widening of the shoe sole and, as a result, there is less restriction on freedom of movement, in particular when walking.

In an alternative embodiment of the invention it is provided that the rollers have a slightly tilted position when viewed from the toe of the shoe. The inclination is brought about by the fact that at least the axial sections used to hold the rollers have an outward slope with respect to a plane parallel to the surface of the sole. Due to the increase in the axes, the upper halves of two opposing rollers come closer to one another, while the lower halves are at a greater distance from one another. This attachment widens the lane, which improves

Road holding leads. In addition, the inclined roles allow with a correspondingly rounded outer edge, the use of shoes for Shöweinlage with break dance elements; while the actor is resting on the floor with one hand, the leg running on the inclined roller describes a circular motion in a circle. With the help of the shoes according to the invention, however, a large number of more complicated acrobatic inserts is conceivable. Similar to figure skating, the actor can cover a longer distance by driving between the individual acrobatic performances in an arena.

In a further preferred embodiment it is provided that the rollers are suspended on axle sections which can be tilted in the lateral direction and between each roller suspension and the underside of the shoe sole there is a connection which can be subjected to tension and / or pressure and which influences the position - The rollers can be moved by shifting their weight. For example, the diagonal attachment of the connecting elements from the lower edge of each roller suspension to the opposite outer edge of the shoe sole would be obvious.

It is within the scope of the invention that the axes directly on the

Bearing on the inside of the shoe sole or indirectly embedded in a sleeve are connected to the shoe sole.

It goes without saying that all are known to a person skilled in the field of roller skates, inline skates and skateboards

Possibilities for fastening the axles and rollers can also be used for the shoe according to the invention.

To fasten the rollers, continuous axes can be threaded at the end for screwing on a locking nut exhibit. The locking nuts are used to fix the axle in the opening of the shoe sole. After the rollers are attached to the end sections of the axles on both sides, they are secured by two additional nuts, which can be designed as safety nuts. Alternatively, in the

The sole of the shoe must be embedded so that it is accessible from the side. In the simplest case, a screw with thread is sufficient to fasten the rollers.

It goes without saying that for storing the rolls on the

End sections of the axes come into consideration all roller bearings or ball bearings known to the person skilled in the art.

To expand the acrobatic use of the shoe, it is provided that the sole of the shoe in the middle part adjoining the heel area is acted upon on the underside with a metal plate or with a plate made of hard plastic. The metal or plastic surface can have a flat or groove-like structure. With the help of such a shoe it is possible to slide along hard edges or railings. The movement on such a surface is also called "grinding" after the English word and is known from the skateboard scene.

The fastening of the rollers to the sole of the shoe with a frame which is fastened to the shoe or detachably in another way is also within the scope of the invention. It is conceivable that one of the continuous axes is embedded in the groove of the shoe in a groove-like depression that runs transversely to the running direction. By inserting the axis in a groove-like recess, the assembly of the frame is made easier and easier at the same time, the rotationally fixed fixing of the axles and thus the rollers is ensured.

As a further embodiment, the invention describes a shoe with two rotatable semi-axles as carriers of the rollers. This

Semi-axes are oriented transversely to the direction of movement in the driving position and extend from the edge of the shoes to approximately the middle of the shoe. There they are mounted so that they can rotate about an almost vertical axis. The axis of rotation is slightly inclined forward from the vertical in the direction of travel. When the semiaxes are pivoted backwards about this axis of rotation, the slight inclination of the axis of rotation causes the rollers to lift off the road. This will transfer them from the driving position to the running position. In the running position, the two rollers on the back of the shoe are visible next to each other in the area of the heel.

For a secure fixation of the driving position, it makes sense to provide a recess in the swiveling surface of the semiaxes, into which the semiaxes are pressed by the weight of the shoe user. If the semiaxes are to be pivoted from the driving position into the running position, it is necessary in this embodiment to first move the semiaxis down a little so that it detaches from the recess. Only then can the pivoting movement to the rear be initiated.

The advantage of this solution is that the semiaxes can be made very wide when viewed from above and thus offer space for an axis of rotation with a very large diameter. Viewed from the side, the axes of rotation can then be dimensioned very flat, so that they only need a very flat recess in the sole of the shoe. Due to their large area, such semiaxes are pressed against the sole of the shoe. The large diameter of the axis of rotation enables it to be made from the same material as the sole of the shoe in a mold. To prevent the unloaded semiaxis from falling off the sole, it is sufficient to form a bead at the end of the semiaxis in the case of partially flexible sole material, over which the semiaxis is pushed onto the axis of rotation.

Of course, all other forms of securing a rotating part can also be used on one axis.

To move from the driving position to the running position, a separate handle of the user is required for each semi-axis. A further advantageous embodiment of the above-mentioned variant consists in that the two semiaxes in the region of their axes of rotation each have toothings on the outer edges which are in engagement with one another. These gears act like gears, but only within the swiveling range of the semi-axes. The advantage of this configuration is that both semiaxes can be moved at the same time with just a single movement. However, it should be noted that in this configuration only one of the two semiaxes should be secured against unintentional swiveling.

The invention describes another configuration in which both

Rollers are arranged on a rigid axis which runs through the sole of the shoe. An opening is provided in the sole for the passage of the axle through the sole. Viewed from the side, the opening has the shape of the letter "J". A spring pulls the axis into one or the other leg of the J-shaped opening. The short leg of the "J" is thus the mensiönt that the lower edge of the rollers are below the lower edge of the shoe sole, so in the driving position. The long leg of the "J" is dimensioned so that the bottom edges of the rollers are above the bottom edge of the shoe soles.

The advantage of this configuration is the very simple construction of the axis and the simple, robust and easily understandable Schhell-Hüb mechanism.

To prevent foreign objects from entering the J-shaped opening

To prevent the sole of the shoe as far as possible, it is proposed to provide an additional cover on the axle, which covers the J-shaped opening in both positions and which is pressed onto the side edge of the shoe sole by a flexible design. For cleaning purposes, this cover should be able to be folded back.

The invention describes another configuration, which is effective as a fast-stroke device. In this configuration, the wheels are fixed to the sole of the shoe and cannot be adjusted. The sole of the shoe has an outer surface that rises to the rear in the area of the heel. A wedge-shaped element seen from the side is arranged below this outer surface. The wedge-shaped element is displaceable in the direction of movement. When the wedge-shaped element is in its rear position, only the rollers touch the road. However, if the wedge-shaped element is completely moved into its front position, the rollers no longer touch the road, but only the wedge-shaped element. The effect of this shift is that the shoe has an increased heel, with the help of which the user can carry out his usual walking and running movements unhindered. In a

The invention proposes a variant of the configuration described above proposes that in the area of the heel both the outer surface of the shoe sole and the upper surface of the wedge-shaped adjusting element are equipped with a toothing or another regularly rastered deformation transverse to the direction of movement of the shoe. This surface formation secures the wedge-shaped adjustment element against unintentional slipping.

In a further variant of the configuration described above, the wedge-shaped adjusting element with an upwardly acting spring or with a screw or with a dovetail-shaped

Profile fixed in a correspondingly shaped groove in the upper element or with another releasable pressure device on the shoe sole.

In a further configuration, the invention proposes the formation of two stable side walls on the left and right side of the shoe in the area of the rollers. On the side wall, a roller support that can be folded forward or backward about a horizontal axis of rotation is attached. The roller carrier is triangular. The axis of rotation for the roller carrier, the semi-axles for the rollers and the fixation are arranged in the three corners. The dimensioning of the triangular roller carrier is proposed in such a way that the axis of rotation marks the highest point of the triangle in the driving position, that the fixation is located approximately at the level of the lower edge of the shoe sole and that the

The semiaxis of the roller is positioned lower than the axis of rotation of the roller carrier, in each case in relation to the lower edge of the shoe sole. When the fixation is released and swiveled forward so far that it is again at the level of the lower edge of the shoe sole, the semi-axis of the roller moves upwards. Advantages of this configuration are that the side wall and the roller carrier z. B. can be made from sheet metal in a very flat design. The quick-lifting device of this configuration will therefore hardly broaden the shoe according to the invention.

Another advantage is that the distance of the semi-axis from the axis of rotation of the roller carrier is much smaller than the distance of the fixation. Forces acting on the semiaxis 3a therefore generate lower forces on the fixation in the reverse ratio of the respective distance to the axis of rotation. As a result, the fixation can be dimensioned correspondingly weaker.

An advantageous embodiment is that the fixations of the left and right sides can be connected below the sole of the shoe, for. B. by a steel wire. A sensible variant is to provide groove-shaped depressions for the reception of this steel wire in the shoe sole, which are equipped in certain areas with small locking lugs that hold the fixation. In a further sub-variant, additional grooves for accommodating them can be provided on the underside of the shoe sole along the pivoting circle of the fixation. This makes it possible to activate different roller positions. A ground clearance that can be variably adjusted in this way can be achieved, particularly at the beginning of the training session, with shoes according to the registration

Be an advantage.

Another sub-variant of the configuration described above with swiveling roller carrier is the connection of the side walls not on the shoe but below the sole of the shoe. This makes it possible for both side walls with their connection and the can be removed from the shoe as a complete assembly on swiveling roller carriers.

In a further variant it is proposed that the connection below the shoe is adjustable in its distance, for. B. by two interlocking tongues. This makes it possible to adapt to different widths of shoes.

In a further variant, it is proposed that this removable assembly can be attached to the shoe on both sides via one or two eyelets with drawstrings which run from the eyelet on one side above the shoe to the eyelet on the other side. To connect and adjust these drawstrings all known variants such. For example, a buckle with holes in the counterpart, a Velcro connection or a clamp connection can be used.

The advantages of this configuration are that the rollers are raised in critical areas and the user can then walk and run normally or can even be removed as a whole. This makes it possible to equip any shoe.

Another configuration according to the invention provides a continuous, rigid axle which carries the rollers at its ends. The shaft is cranked twice at both ends and at right angles. As a result, the ends of the axis are designed in the shape of a curve. The rollers are mounted and secured on these ends. The axis is rotatably mounted in a bore which leads across the shoe sole 4. When the crank points upwards, the rollers are in the highest position (running position). If the

The crank faces down, the rollers are in the lowest position lung (driving position). The advantage of this configuration is that the axis can be produced inexpensively from edge steel, but is still very solid and can withstand even peak loads. Likewise, the axis in the shoe sole can be produced comparatively easily. The adjustment principle is very easy to understand for the user. If the length of the crank arm is so dimensioned in each case is perpendicular and in running position d'ä ^'ss he both in the drive position, no extremely reliable identification is needed for fixing the axis in its two Pösitioneri. The invention proposes one or two additional fixations

Poles in front, which run on the side of the shoe, are attached at one end to the center of the roller and are detachably attached to the shoe at the other end. If the distance of the fixing point from the crank arm in the driving position or in the running position is designed so that the crank arms are vertical in both states, a single fixing point is sufficient for the bar on the shoe. The advantage of this configuration is that only a single fixing mechanism has to be provided. Since it must be easy to solve by the user, all variants known to the person skilled in the art, e.g. B. a pin with a circumferential bead, which engages in a correspondingly shaped recess in the sole material or a hook-shaped fuse or other known construction, suitable.

In a further embodiment of the aforementioned configuration, the invention proposes a further cranking in the middle of the axis in addition to the two crank-shaped crankings at the ends of the axis. In the interest of an optimal manufacturing possibility, it is proposed that this offset be given the shape of a loop. Depending on the shape of this additional offset, a recess should be provided in the middle of the sole, in which before the crank fits into it. An advantageous embodiment of this configuration is that one or more additional locking lugs are formed in the recess from a partially flexible material of the sole, behind which the offset engages.

It is preferable that the central offset, viewed from the side, is at an angle of 90 ° to the two crank-shaped offset at the ends of the axis. The advantage of this configuration is that the middle crank can be accommodated in recesses on the underside of the shoe sole and that the crank runs through a swivel angle of 180 ° between these two recesses. A swivel angle of 180 ° is also advantageous for the curvilinear designs at the ends of the axle, since it moves from the running position (lifted wheel with crank pointing vertically upwards) into the

Driving position (roller lowered down with crank pointing vertically down) corresponds.

A further safety-relevant characteristic is that the driving position of the axle is reached when the middle offset points backwards against the direction of travel. If an unevenness or a foreign body is rolled over while driving, a force will suddenly act on the crank-shaped crankings on the axle ends. This creates a torque in the central area of the axis. This torque is absorbed by the middle crank and is passed on in that the middle crank presses itself into the rear recess with an increased contact force. If - contrary to the preference of this late report - the middle cranking in the driving position position in the front recess, there would be a foreign body and the resulting result if it were passed over Torque on the axle may loosen the offset from the recess and the rollers would leave their driving position. The rear area of the shoe sole would sink onto the road. The sudden deceleration force could only be intercepted by the user with great effort. Therefore, the middle crank should point backwards in the driving position.

The advantages of the configuration described above include that both roles can be transferred from the driving position to the running position with one movement of the user and that the two positions can be secured very easily by means of locking lugs made of the material of the shoe sole. The production of the axle from round steel material is also comparatively simple. Likewise, storage by an additional block in the heel area of the sole.

A further improvement of this configuration can be achieved in that the middle offset is structurally divided into two offset, which are arranged on the edges of the shoe. This creates a continuous axis, which is triple cranked at its edges. The first cranking takes over the function of the stop for driving position and running position, the other two crankings form the crank to which the rollers are attached. In this configuration, a suitable recess is formed on the edges of the shoe sole for those cranked portions that serve as a stop. This recess should also be provided with locking lugs made of the material of the shoe sole, behind which the cranked elements snap into place. Just as with the configuration with a medium offset on the axle, the two offset portions for the stop in the driving position should also point to the rear in the driving position. An advantage of these configurations with two offsets at the edges for the stop is that no contaminants and foreign bodies can get stuck in the recesses. For the user of the shoes, the stop cranks are visible to the outside, which means the intuitively correct operation of the quick-lift

Device very supported.

A further design according to the invention of the continuous axis cranked at both ends is that differently shaped anti-rotation devices are arranged in the middle of the axis, by means of which the axis can be fixed in the driving position or in the running position. For this purpose, the invention also proposes a pin protruding laterally from the axis or a welded-on star or a laterally protruding flattening of the axis. To accommodate these anti-twist devices, corresponding counterparts must be arranged around the hole that runs across the sole of the shoe, these counterparts must enable the anti-twist device to be snapped into two different angular positions.

So that this anti-rotation device can be released and re-fixed by the user with just one hand, the invention proposes that the anti-rotation device only extends over a very small part of the continuous axis and in the vicinity of one of the two crank-shaped offsets at the ends of the axis is arranged. To solve this anti-rotation device, it is proposed to shift the axis transversely to the direction of movement until the anti-rotation device has emerged from its corresponding counterpart in the sole of the shoe. Then the axis can be turned and pushed back in the opposite direction until the anti-rotation lock is inserted in the new angular position. engaged. For this it is necessary that the distance between the two cranks is increased so that the anti-rotation device has enough space to be able to move out of its counterpart.

To ensure the operational reliability of this configuration, it is necessary to provide a safeguard against the lateral displacement of the axis. A sensible option is to arrange a slide along the side wall of the shoe, which can be pushed in front of the anti-rotation device so that the anti-rotation device cannot emerge from its counterpart in the axis. An alternative is a pin, which preferably enters through a hole in the anti-rotation device in the direction of movement of the shoe and thereby prevents the anti-rotation device from lateral displacement. When directing this additional safety, it should be noted that the user of the shoes according to the notification uses them, just like the known roller skates, for acceleration by steering the shoe in a direction which is somewhat away from the main direction of travel and its weight transversely to this direction of movement relocated. The resulting forces across

The main direction of movement of roller skates - as mentioned above - creates a force component pointing in the main direction of movement. These forces acting laterally on the rollers and on their suspension must also be absorbed in an embodiment in which a lateral displacement possibility of the axis is provided.

As a further alternative to a quick-lifting device, the invention proposes a configuration in which both rollers run through the sole of the shoe on one at right angles to the direction of movement. fenden wheel carrier are rotatably attached. The wheel carrier fits into a corresponding recess on the underside of the shoe sole.

In the simplest form of this configuration, the wheel carrier has the shape of a cuboid. The cuboid is attached in such a way that it can be rotated 180 ° from the sole of the shoe and reassembled using the same attachment.

To guide the wheel carrier in the state of being changed, it is advantageous to provide in the center of the wheel carrier a rod pointing forwards or backwards to the heel region in the direction of movement; this rod will find space in a recess on the underside of the shoe sole and will be rotatably and pivotably mounted on the shoe at its end remote from the wheel carrier. Seen from above, the wheel carrier including the guide rod has a T-shaped configuration.

The change between driving position and running position is divided into three phases: First, the wheel carrier is released from a recess and removed from the shoe sole, while it is held by the guide rod. In the second phase, the wheel carrier is swiveled by 180 ° around its center and the previously left roller is then on the right side of the shoe. In the third phase, the wheel carrier is brought back to the sole and latched into the recess on the underside of the sole.

Advantages of this configuration are that the continuous axle can consist of a simple piece of round steel and the wheel carrier together with the guide rod assigned to it as a large area

Element can be molded from plastic. It is conceivable ches or similar material to be used as for the shoe sole, so that the running properties of the shoe are not affected by the quick-lifting device.

The T-shaped formation on the underside of the shoe sole is very clearly visible to the user of the post-registration shoes in this configuration and can therefore be further emphasized optically by a corresponding design and can be emphasized in advertising campaigns as a distinctive element.

In a further configuration according to the invention, the shoes are equipped on both sides with an additional side wall, on which a Z-shaped rail runs. One slide piece moves on the rail, which carries the semi-axles for the rollers. The rails are arranged in such a way that the sliding piece which can be moved thereon is removable from the rail towards the sole. When the slider is moved in the other direction, it reaches the first kink of the Z as the first prominent point on the rail. This point is arranged so that it corresponds to the driving position of the roller. The weight forces exerted by the user on the roller during travel ensure that the roller automatically moves into this position on the rail. Additional protection, e.g. B. by a small latch, but is recommended. If the user continues to move the sliders on the Z-shaped rail, the end point of the Z will mark the running position of the rollers. When the rollers are adjusted in this position, their lower edge is above the lower edge of the shoe sole. An advantage of this configuration is that the three operating states are possible for the rollers, "roller removed", "roller in driving position" and "roller in running position". Another configuration according to the invention provides that one side wall is arranged on each side of the shoe, on which a roller carrier is rotatably mounted. The axis of rotation for this roller carrier runs approximately in the direction of movement. The roller carrier can be swiveled by almost 180 °.

If the axis of rotation for the roller carrier is arranged above the sole of the shoe, then the relationship between

Height of the swivel axis above the sole,

Distance between roller center and swivel axis

and the diameter of the wheel

so that the rollers are in the driving position in the lower position and in the running position in the upper position of the roller carrier.

A variant of this configuration is that the additional side walls are dispensed with. Instead, the pivot axis of each roller carrier is arranged on the side of the shoe soles. The roller carrier together with the roller attached to it can be pivoted out of the swivel axis from under the sole of the shoe. It is preferred that the roller and roller carrier pivot into a correspondingly shaped recess on the underside of the shoe sole.

If the roller is arranged on the roller carrier so that it is in the running position (roller swiveled under the sole of the shoe) above the roller carrier, it is possible to move the other side of the Form the roll holder so that it corresponds to the tread of a shoe sole.

In the driving position, the entire diameter of the roller is below the lower edge of the shoe sole; this results in a comparatively large ground clearance when driving.

Another variant of this configuration is that the roller carrier is arranged above the rollers in the running position. The side surfaces of the rollers are then visible from below. If the

Distance from the axis of rotation to the swivel axis is smaller than the radius of the roller, the roller protrudes laterally beyond the soles of the shoes when running. The advantage of this configuration is that the ground clearance of the rollers can be determined regardless of the diameter of the rollers during the driving state.

In a further configuration, the invention proposes longitudinal wheel carriers on the left and right side of the shoe, which are connected to one another in the area of the heel. The result is the configuration of a U-shaped support that nestles against the outer edges of the sole. The wheel side member carries a role on both sides. In one embodiment of this configuration, the wheel longitudinal members are rotatably mounted in the front region of the shoe, the axis of rotation runs parallel to the sole of the shoe and transversely to the direction of movement of the shoe. At its rear, the side member has a platform with an approximately crescent-shaped layout. Seen from above, this platform is shaped in such a way that the rear area of the heel area of the shoe sole can be placed on it. To park, it is necessary that the wheel longitudinal member can be moved forward in the direction of movement. This is the state

Driving position of the configuration. For the running position of the wheel carrier the wheel carrier has to be moved backwards relative to the rest of the shoe, the heel area of the shoe slides down from the platform at the end of the wheel longitudinal member, the wheel carrier can now be raised and moved slightly forward again. Locating pins on the front edge of the

Platform penetrate the wall of the shoe a little and ensure that the wheel side member is fixed vertically in the heel area in this way. To prevent the locating pins from slipping out of the shoe, it makes sense to use a drawstring that runs from the left side of the wheel carrier above the shoe to the right wheel carrier area.

Instead of the fixing mandrels, a pin or hook can also be provided, which engages a corresponding counterpart in the shoe. The counterpart is to be arranged on the shoe at a height such that the running position of the shoes is reached when the wheel carrier is raised.

In a further development of this configuration, it is proposed that the left and right side of the wheel carrier in the front

Shoe area below the shoe are connected by a metal plate. The metal plate can be moved forwards or backwards under the shoe; Furthermore, due to the large distance between the metal plate and the heel area and without impairing the running properties, it is possible for the wheel carrier to be pivoted somewhat about the metal plate as the axis of rotation.

In this configuration, a detachable unit is possible which has a very simple quick-lifting device which can be intuitively grasped by the user. In a further embodiment of this removable variant, it is proposed that the left and the right te half of the wheel carrier are connected to the rear area via two articulated intermediate pieces. In the interest of optimal stability of the unit, the pivot axes for these additional intermediate pieces should run perpendicular to the surface of the soleplate. The two main advantages of these articulated intermediate pieces are the adaptation to different shoe sizes and shoe shapes and the folding of the unit when not in use.

An overall advantage of this configuration is that an additional assembly is created which can be attached to any shoes and can be adapted to the dimensions thereof. The platform in the rear area acts as a quick-lifting device. Furthermore, the entire unit can be quickly removed from the shoe. Another advantage is that the unit is clearly recognizable as an additional element. The outer surfaces are available for the formation of a fashionable design. The front area of the wheel longitudinal member in particular can be designed in a variety of ways.

Another, very wide-ranging group of quick-lifting devices results from various embodiments of the configuration of a wheel carrier, which is located transversely to the direction of movement of the shoe in a recess in the sole of the shoe. If the wheel carrier in this recess by a guide - z.

B. tongue and groove - is guided vertically, different variants for height adjustment are possible.

In one embodiment, a screw arranged perpendicular to the surface of the shoe sole is rotatably arranged above the wheel carrier and within the recess. An internal thread in the Wheel carrier. The wheel carrier is moved up or down by turning the screw. It should be noted that the screw has a comparatively white large diameter if it should be possible to operate it without tools.

Another embodiment of this configuration is an air cushion, which is arranged between the wheel carrier and the recess. When the air cushion is inflated, it acts as a quick-lifting device which moves the wheel carrier down towards the outer surface of the shoe sole and thereby transfers the roll from the running position to the driving position. In a sub-variant of this version, the invention proposes the integration of an air pump, which can be actuated from the outside by a pin in the heel area. A vent valve that is accessible from the outside is used to deflate the air inside the air cushion.

In a further sub-variant of the configuration of a wheel carrier in a recess in the shoe sole, it is proposed that a wedge be inserted between the wheel carrier and the recess. To do this, the wedge must move parallel to the outer surface of the sole. As

Movement mechanism for the wedge is e.g. B. a screw with a corresponding internal thread in the shoe sole is conceivable. Another variant is that, in analogy to the displaceable element also presented here, the wedge has catches under the heel area of the shoe, with the aid of which it can be fixed in two different positions.

A further variant consists in that spacers are pushed between the wheel carrier and the recess and can be folded out or rotated out of the wheel carrier. For all the configurations described above, the invention proposes the formation of beads in front of and / or behind the rollers as an additional option. These beads are designed so that their outer surface in the vicinity of the rollers is flush with the outer surface of the rollers and with increasing distance from the

Roll comes ever closer to the outer surface of the shoe and finally merges into the outer surface of the shoe. These beads override the function of a wheel deflector and prevent outwardly protruding rollers from getting caught in the roller of the neighboring, other shoe during use. Smaller objects on the road are pushed aside by these beads and cannot get stuck between the roller and the shoe.

Another configuration of the shoe according to the invention is

Attachment of the rollers to one of two receiving devices, the first receiving device being arranged such that the attached roller is in the driving position, that is to say the lower edge of the roller 2 is located below the underside of the shoe sole 4.

The second receiving device is arranged so that the roller attached to it is in the running position, the lower edge of the roller 2 is therefore above the underside of the shoe sole. This second holding device can be arranged anywhere on the outside of the shoe. So on the side near the mount that is used for the driving position. Or in the front area, elsewhere on the sides or in the rear area near the heel. If the shoe is equipped with 2 wheels, the respective holding devices for the running position can, for example, both be arranged on one side. preferably on the outside of the shoe so as not to bump into the other shoe. Or one shot is positioned on the tip, the other on the heel. Or both recordings are arranged one above the other on the heel.

The receiving device can also be integrated into the underside of the shoe sole. For this purpose, a corresponding recess must be provided in the shoe sole, into which the roll fits. The advantage of this position is that the rollers are not visible from the outside in the running position. So that the recess does not become dirty, it can be closed with a removable cover. The lid should be attached to the sole of the shoe with a flexible strap to protect against loss or open against spring pressure.

When the rollers are in the driving position, the holder must be able to withstand the forces that occur when driving and transmit them to the shoe. In the running position of the rollers, the holder only has to bear the weight of the rollers themselves.

The simplest form of the holder is an internal thread in the shoe sole or in the shoe, into which a screw fits as a counterpart. An advantageous feature is the (loss-proof) fastening of the screw to the roller. For a quick and tool-free change, the invention prefers that the actuating elements on the head of the screw - similar to a wing nut - have sufficiently large actuating surfaces on the largest possible diameter.

As an improved form of recording, the invention prefers one

Bayonet lock instead of the screw. The bayonet catch acts like a screw, but with different pitches. In the end position of the bayonet lock, the slope is first reduced to zero and then negative for a short area. This reduces the risk of unintentional loosening.

Another alternative is a lever articulated to the receiving device, which can be folded down transversely to the axis of rotation of the roller. When stretched, the lever fits through the opening of the roller. After folding down, a tension spring presses the lever on the roller and thereby holds it in this position. The pivot point of the tension spring can only be as far from the pivot point of the lever as the size of the opening in the roller allows. However, the lever itself is longer. This reduces the actuation force when unlocking.

Further details and features of the invention are to be explained in more detail below with the aid of examples. However, the examples shown are not intended to limit the invention, but only to explain it. In a schematic representation:

Figure 1 shoe with two roles in the heel area

Figure 2 shoe with three wheels in the heel area

Figure 3 shoes with inclined rollers

Image 4 Section through a shoe with inclined semiaxes that can be rotated backwards

Fig. 5 View of a shoe from below with semiaxes that can be turned back and interlocked Figure 6 Section through a shoe sole with a J-shaped opening for guiding a continuous axis

Fig. 7 Section through a shoe with a fixed roller and sliding, wedge-shaped heel

Fig. 8 Additional side wall with a triangular roller support that can be rotatably attached to it and can be swiveled in the direction of movement

Fig. 9 Shoe with additional side wall and swiveling roller support

Figure 10 Shoe sole with cranked axle and rods for fixing it

Fig. 11 Shoe sole with axle that is cranked at both ends and additionally in the middle

Figure 12 Shoe sole with a transverse axis that is triple cranked at both ends

Fig. 13 Shoe sole with removable and rotatable axle support that can be rotated through 180 °

Fig. 14 Shoe with additional side walls and Z-shaped groove in which a slide with rollers attached to it can be moved Fig. 15 Longitudinal rack as a separate assembly with two rollers that can be strapped under normal shoes

Figure 1 shows the shoe 1 according to the invention with the rollers 2a and

2b, which are fastened on a continuous axis 3a in the heel area 5 of the shoe sole 4. The special thing is that the axis 3a is let through a hole in the fefseri area 5 of the shoe sole 4. The heel area 5 extends approximately over the first third of the shoe sole 4, followed by the middle area 6, which is provided with a grind plate 8. The grind plate 8 in the central area 6 allows a sliding movement on hard edges or pipes. Acrobatics of this kind are known from the skatboard scene. Between the shoe sole 5 and the rollers are locking nuts 9 on the

Axle stub 3a and 3b screwed on. The diameter of the rollers 2a and 2b in the heel area 5 of the shoe 1 is dimensioned such that the front surface of the sole 7 is in direct contact with the ground. The wearer of the shoes according to the invention therefore stands firmly on the floor when he loads both the heel area 5 and the front sole area 7. After a short start-up phase, in which the front area 7 of the sole is predominantly used, the weight is shifted to the heel area 5. With the lifting of the front sole area 7 from the ground and the simultaneous balancing, the running movement changes into a travel movement.

Figure 2 shows the shoe according to the invention in a further embodiment from below. In addition to the two rollers 2a and 2b attached in the heel region, there is a third roller on the outer edge of the heel region in the direction of the toe on axis 3c 2c attached. The requirements for the ability of the wearer of the shoes according to the invention to be balanced are somewhat lower in this embodiment than when the shoes only have two opposing roles. The support of the third roller 2c can of course also be achieved by attaching only two rollers 2a and 2b by arranging the two rollers 2a and 2b offset from one another. For example, it would be conceivable that the axis 2a, which ends blindly in the shoe sole 5 and serves to support the roller 2a, is offset in the direction of the tip of the foot in comparison to the axis 3b carrying the roller 2b.

FIG. 3 shows a further alternative embodiment of the roller skate according to the invention. The axes 3a and 3b for mounting the two rollers 2a and 2b are inclined into the heel area of the shoe sole 5. In the example shown, the axle sections 3a and 3b can be screwed into the threads provided for this purpose in the shoe sole. Locking nuts 9 are screwed onto the stub axles 3a and 3b between the shoe sole 5 and the rollers. In the example shown, the rollers 2a and 2b are secured by pluggable fuse 10. The lane widens due to the inclination of the axes 3a and 3b. This advantageously means better road holding and a secure footing. Due to the rounded shape of the rollers 2a and 2b, the shoes in the embodiment shown are also suitable for lateral loading. For example, the use of the

Shoes for acrobatic demonstrations, in which the wearer of the shoes rotates with his legs stretched out around the hand resting on the ground.

Figure 4 shows a longitudinal section through a shoe near the

Centerline. The one that can be rotated backwards towards the heel area is shown

Semi-axis 3a with roller 2 and locking nut 10 arranged thereon. The axis of rotation 11 for the semi-axis 3a, which is inclined slightly forwards from the vertical, is entered. The drawing illustrates that by rotating about the slightly forward-inclined axis 11, the roller is transferred from the driving position (not shown here) to the running position — shown here — in which the bottom edge of the roller 2 is located above the lower edge of the shoe sole

4 is located.

Figure 5 shows the shoe cut lengthways in Figure 1 from below, but in contrast to Figure 3 not in the running position of the rollers, but in the driving position. Both semiaxes 3a and 3b are pivoted about the axes of rotation 11a and 11b to the front stop 34a and 34b and are therefore in the running position. The rear stops 12a and 12b in the heel region 5 can be seen in FIG. The variant is drawn in which the semiaxes 3a and 3b in the region of their axes of rotation 11a and 11b on the outer edges

Have teeth 13 which are in engagement with each other. The drawing shows that when one semi-axis moves via the toothing, the other semi-axis is also driven and thus continues to rotate.

Figure 6 shows a section through the sole of the shoe in the direction of movement. This is in the area of the J-shaped opening 14 running transversely to the direction of movement. The continuous, rigid axis 3c can be displaced within this backdrop-shaped opening. The section through the axis 3c is entered with continuous lines in Figure 6 in the position in which it is in the shorter Leg of the "J" is located. The shorter leg of the "J" is matched to the diameter of the roller 2 so that when the end stop is reached within the short leg, the rollers 2a and 2b are in the driving position. It is shown how the tension spring 15 ensures that the axis 3c is pressed against the stop of the J-shaped link. The running position of the roller 2a and 2b is shown with a broken line. In this position, the continuous axis is located in the other leg of the "J". It is held there by the tension spring 15. It can be seen that in this position the rollers have their lower edge above the lower edge of the shoe sole 4.

Figure 7 shows the longitudinal section through a shoe with rollers 2 firmly installed on a rigid axle. In the area of the heel 5 it can be seen that the heel consists of two adjacent elements, of which the lower element 16 can be moved in the longitudinal direction of the shoe. The lower element 16 is shown in its front position 16 in FIG. Figure 7 illustrates that the lower element 16, by longitudinal displacement in the direction of travel, together with the inclined separating surface 18, ensures that the lower edge is lowered onto the lower edge of the fixed rollers 2. This deactivates the roller and moves it away from the driving position transferred the running position. In position 16 '(the running position of the shoe), the lower element 16 of the heel is shown with a solid line. The dashed line shows the lower element 16 in its position which is shifted towards the rear end of the shoe in the direction opposite to the direction of travel. In this position, the lower edge of the element 16 is higher than the lower edge of the rollers. The rollers 2 are brought into the driving position by the displacement of the lower element 16, that is to say also without displacement of the roller itself. Figure 7 shows that the separating surface 18 has a toothed surface. The toothing serves to fix the lower element 16 against unintentional displacement. A loop is also shown at the end of element 16, with the aid of which the element can be moved in the direction of travel.

Figure 8 shows an additional side wall 19 in side view, which is screwed to the side of the shoes. Only the sole 4 of the shoe is shown here. The roller carrier 20 is arranged on the side wall 19. The triangular shape of the roller carrier 20 can be seen in FIG. It can be pivoted about the axis of rotation 22, which extends transversely to the direction of travel, in the direction of travel, that is to say forward or backward. In the other two points of the triangle, the semiaxis 3a for the roller 2a is arranged, and the fixation 21, by means of which the roller carrier is fixed in a recess in the lower edge of the sole 4. In Figure 8, the solid position of the roller carrier 20 is drawn in, in which the roller 2 is in the running position (dotted line), i. H. its lower edge is located above the lower edge of the shoe sole 4. When the fixation 21 is released, the roller carrier 20 is pivoted about the axis 22, and the fixation has reached the position 21 ', the semi-axis 3a and thus also the roller 2a are lowered and transferred into the driving position 2a '.

In Figure 8, two eyelets are drawn on the additional side wall 19, through which a drawstring 23 can be guided. In the design as a removable assembly, in which the side wall 19 is not fixed to the shoe 4, but is connected below the sole of the shoe with the side wall on the other side of the shoe, the drawstring is used for (releasably) fastening the

Assembly under a normal shoe. Figure 9 shows a three-dimensional view of the rear part of a shoe with the sole 4 and the heel area 5. An additional side wall 19 is attached to the side of this shoe. At the upper end of this side wall there is an axis of rotation 22 which points in the direction of travel of the shoe. A roller carrier 33 can be pivoted about this axis of rotation. The roller carrier 33 carries the semi-axis 2a and this the roller 2a. In the representation of Figure 9, the roller carrier 33 is in the lower position, that is, the driving position of the roller. The illustration in Figure 9 makes it clear that the rollers 2 can be pivoted upwards by folding up the roller carriers 33 and can thus be transferred to the running position of the shoe.

Figure 10 shows the sole 4 of a shoe, namely the heel area 5. A continuous axis 3c is shown, in the variant with a crank-shaped offset 24 at both ends of the axis 3c. Figure 10 shows the running position of the rollers 2a and 2b. In this position, the crank-shaped cranks 24 point upwards. Also shown in Figure 10 are the bars 25, which run from the center of the rollers to the heel area 5 of the shoe sole 4. There the rods 25 are fixed with a pin. Figure 10 makes it clear that in the driving position of the axle, i. H. that is, with the crank-shaped offset 24 pointing downward, the rod 25 can also be used for the fixation, and that with the securing at the same point of the shoe sole 4 as in the running position.

Figure 11 shows the view of the underside of a shoe and that the shoe in this illustration is rotated by 180 ° compared to the usual position when in use (upside down). The Continuous axis 3c has a crank-shaped offset 24 on both ends and an additional offset 26 in the middle. This offset 26 fits into the trough-shaped recess 27 in the center of the sole 4. In Figure 11a, the recess 28 points in the direction of travel of the shoe forward. The recess

However, 27 also offers an equally large space, which is directed towards the back of the heel. This place is coordinated with the fact that the offset 26 is accommodated in it when the axis 3c is pivoted through 180 °. The driving position is shown in Fig. 11a, the running position in Fig. 11b, which results from pivoting through 180 ° of axis 3c.

In contrast to Figure 11, Figure 12 shows the sole 4 with its heel area 5 in such a way that the shoe would have to be shown above the sole, that is to say in the actual user position. For the sake of clarity, however, this upper part of the shoe is missing, only the sole 4 is shown. Across the sole runs the axis 3c, which is triple cranked at both ends. It can be seen that the internal cranks 26 each engage in a cutout 27 on the lower edge of the sole 4

Bends 26 follow the bends 24. The bends 24 point upward in the illustration. This means that the rollers 2a are in the running position, ie at the level of the shoe, lifted off the road.

Figure 13 shows the top view of the rear area 5 of the shoe sole 4. Again, without the upper part of the shoe that is actually based on it. Shown is an axle support 3d which runs through the sole transverse to the direction of movement. In the lower drawing of Fig. 13 it is shown that the axle beam 3d is from the

The sole of the sole is removed and rotated by 180 °. has been set. In this position, the rollers are in the running position. On the side of the shoe, in the running position of the axle support 3d, there is a cavity on both sides. The axle support 3d fills this cavity when it is inserted into the shoe sole 4 in the running position.

The overall view of a shoe is shown in three dimensions in Figure 14. It can be seen that additional side walls 31 are arranged on both sides of the shoes. There is a Z-shaped groove in these side walls. In the Z-shaped

Groove runs a slider 32 which carries the semiaxes 3a and 3b and the rollers 2a and 2b. In Figure 14 it can be seen that the Z-shaped groove is open towards the lower edge of the sole 4. Through this opening, the slider 32 can be removed from the groove.

In Figure 14, the slider 32 is entered in the running position of the roller 2a within the Z-shaped groove. In this position it is in the first bend of the Z-shaped groove. This point is positioned on the shoe with respect to the diameter of the roller 2 such that the lower edge of the roller 2 is arranged above the lower edge of the shoe sole 4. The driving position is also shown. In the driving position, the sliders 32 are at the end of the Z-shaped backdrop. This end point is arranged so deep in the shoe that the lower edge of the rollers 2 is below the lower edge of the sole

4 is located.

Figure 15 shows a three-dimensional representation of a wheel side member 35, namely in the variant as a completely removable assembly. A left and a right side member 35 are shown

Wheel side members 35 receive the rollers 2a and 2b. The left and the right wheel carrier are connected by the metal strip 36. Shown here in the width-adjustable version, ie the metal strip 36 consists of two mutually displaceable parts with tongue and groove serving for fixing transversely to the direction of displacement. At the end on the heel side, the intermediate pieces can be seen, on each of which a platform 36 is arranged horizontally inwards. The platform 36 serves to accommodate the heel of a normal shoe. Mandrels 37 are located on the front edge of the platforms 36. An additional tension band 23, which connects the front regions of the two longitudinal members, is not shown.

The small platform 36 has an essential function for the running position of this arrangement. The rear edge of the heel area 5 of the shoe sole 4 is placed on the platform 36 in the running position of the additional device. The sole of the shoe must be so strong at the rear edge of the heel that this area ensures a proper appearance. In this position, the heel of the shoe is lifted off the tread. Only the two rollers touch the tread, such as. B. sidewalk, street or lane. In the front area of the shoe, the connecting metal strip 36 is so flat that the surrounding areas of the sole of a sports shoe can still sink onto the road.

If the wheel side member is no longer to be in the driving position, it can either be removed from the shoe or remain on the shoe in a position in which the area on the heel side is raised slightly. The fixing spikes 37 then engage the rear wall of the shoe on the far side. The entire arrangement of the

The longitudinal member of the wheel is attached to the front of the shoe Drawstring 23 secured against falling. It pushes the fixing pins 37 a little into the shoe. In this way, the user can also leave the longitudinal wheel carrier in the running position on the shoe.

In the pictures 16a to 16c the wall of the shoe 1 is drawn in cross-section. A roller 2 with a deep groove ball bearing is also shown in cross section. The holding device 43 is drawn in three variants, always in a side view:

In Figure 16 a, a thread 46 can be seen as the receiving device 43. In side view, the counterpart 45, a screw is entered. It is shown with very large wings as a manual actuating element and a lock nut for clamping the ball bearing.

Figure 16b shows a bayonet 47 as the receiving device 43. The screw-shaped guide of the bayonet 47, in which the guide pin of the counterpart 45 moves, can be seen in the bore of shoe 1. Otherwise the variant is similar to Figure 16a.

Figure 16c shows the variant with a foldable lever 48. The lever 48 is pressed onto the bearing of the roller 2 by a tension spring. The large design of the receiving device 43 can be seen in this variant. The cradle extends beyond the surface of the wall of shoe 1.

It should be noted that the images 16a to 16c also apply if the part labeled shoe 1 represents the shoe sole 4. LIST OF REFERENCES

1. Shoe 2a, 2b rolls, big

2a ^' roller, lowered into driving position

2c rolls, small

3 axes (collective term for axes 3a -3c) 3ä, 3b blind-ended axes or semi-axes 3c continuous, rigid axis

3d wheel carrier for rollers

4 shoe sole

5 heel area of the shoe sole

6 middle area of the shoe sole 7 front area of the shoe sole

8 Grind plate in the middle of the shoe sole

9 locking nut

10 Lock nut or locking plug connection

11 inclined axis of rotation for semiaxes 3a, b 12 rear stop for semiaxes 3a, b

13 gearing

14 J-shaped opening across the sole of the shoe 4

15 spring for continuous axis 3c

16 lower element of the heel with adjustment ramp 17 pressure spring for adjustment heel 16

18 inclined upper surface of the adjustable heel

19 additional side wall in the heel area

20 foldable roller carriers

20 'foldable roller carrier in driving position 21 fixation for foldable roller carrier ^'' Fixation for foldable roller carrier in driving position, ie lowered roller 2a axis of rotation for foldable roller carrier drawstring for fastening the side walls 19 in the version as a removable additional assembly. crank-shaped cranking of the axis 3c rods for fixing the angular position of the cranking) 24 ^' additional cranking in the area of the axis 3c recess in the sole 4 for receiving and as a stop for additional cranking in the axis 3c flexible locking lug in the recess 27, matched to the cranking 26 anti-rotation for axle 3c recess in shoe sole 4, suitable for wheel carrier 3d side wall with z-shaped rail, sliding pieces, movable on rail in side wall 31 roller carrier, can be folded down laterally, 34b front stop for semi-axles 3a, 3b wheel longitudinal carrier platform at the rear end of the wheel longitudinal carrier 35 fixing spikes at the front edge from platform 36 hook on heel of shoe 1 to receive the counterpart from the wheel side member 35 air cushion air pump for air cushion 39 valve for air cushion 39 spacers, can be folded out of wheel carrier 3d mounting device recess on the underside of shoe sole for roller 2 45 counterpart for holding device 43

46 Thread a holding device 43

47 Bayonet lock on holding device 43

48 Lever on receiving device 43

Claims

1. shoe (1) with two or more rotatable rollers (2a, 2b, 2c), which are arranged on one or more axes (3a, 3b, 3c), the axes (3a, 3b, 3c) substantially transverse to Longitudinal direction of the shoes or oriented transversely to the running direction, characterized in that - one or more axes (3a, 3b, 3c), each carrying one or more rollers (2a, 2b, 2c), wholly or partially within the vertical direction the shoe sole (4) are arranged, and - the axes (3a, 3b, 3c) only lie in the third of the shoe sole (4) which begins with the heel area (5) of the shoe sole (4), whereby - the arrangement of the axles (3a, 3b, 3c) and the size of the rollers (2a, 2b, 2c) is dimensioned such that the shoe sole (4) in the non-axles (3a, 3b, 3c) and rollers (2a, 2b, 2c) provided area (7) ensures an at least partially flat appearance.

2. Shoe (1) according to claim 1, characterized in that on a heel area (5), the shoe sole (4) positioned continuous axis (3a) or on two in this area of the shoe sole (5) blindly ending axes (3a, 3b) rollers are attached at the end.

3. Shoe (1) according to one of the preceding claims, characterized in that on two in the heel area (5) the shoe sole (4) staggered axes (3a, 3b) a roller (2a, 2b) is attached to both sides of the shoe sole.

4. Shoe (1) according to one of the preceding claims, characterized in that two rollers (2a, 2b) are fastened on both sides in the heel area (5) of the shoe sole (4) and a further third roller (2c), on the outside, at the end of the third the shoe sole (4), which begins with the heel area (5) of the shoe sole (4), is fastened.

5. Shoe (1) according to one of the preceding claims, characterized in that on several axes (3) in the heel area (5) of the shoe sole (4) on each side a plurality of rollers (2) are attached.

6. Shoe (1) according to one of the preceding claims, characterized in that the rollers (2a, 2b) fastened in the rear heel region (5) have a larger diameter and / or are stronger in the vertical direction over the lower edge of the shoe sole (4) protrude as the rollers (2c) provided at the end of the third of the shoe sole, which begins with the heel area (5) of the shoe sole.

7. Shoe (1) according to one of the preceding claims, characterized in that the continuous axes or the axes (3a, 3b, 3c) which end blindly in the shoe sole (5) are detachably connected to the shoe sole (5).

8. Shoe (1) according to one of the preceding claims, characterized in that one or more of the continuous axes (3a) are taken up by groove-like depressions which are in the vertical direction with variable depth in the shoe sole (5) or parts thereof, in particular in the shoe heel (85) are embedded, the axes (3a) being fixed or detachable in the groove-like depressions.

9. Shoe (1) according to claim 1, characterized in that the axes (3a, 3b, 3c) lie in the area of the shoe heel (5), and - in the vertical direction, all or part of the shoe heel (5) are embedded , or - are attached to the surface of the heel (5).

10. Shoe (1) according to one of the preceding claims, characterized in that the shoe sole (4), in the third of the shoe sole (4), which begins with the heel area (5) of the shoe sole (4), in particular in the area of the shoe heel , have lateral recesses, the recesses are dimensioned in such a way that the rollers (2a, 2b) are at least partially accommodated in vertical and horizontal extension without their rotation being restricted.

11. Shoe (1) according to one of the preceding claims, characterized in that the axles or at least the axle sections (3a, 3b) used for mounting the rollers (2a, 2b) are arranged rising towards the outside in a plane parallel to the surface of the sole (4).

12. Shoe (1) according to any one of the preceding claims, characterized in that the rollers (2a, 2b), which are tiltably suspended in the lateral direction, are connected to the underside of the shoe sole (5) by one or more elements which can be subjected to tension and / or pressure The inclination of the rollers (2a, 2b) with respect to a plane parallel to the surface of the sole (4) can be influenced by shifting the weight.

13. Shoe (1) according to one of the preceding claims, characterized in that the axes (3a, 3b, 3c) are connected directly or indirectly, running in a sleeve, to the shoe sole (4).

14. Shoe (1) according to one of the preceding claims, characterized in that each axis (3a, 3b, 3c) has a thread at the end for screwing on a locking nut (9) and / or a locking nut for securing the rotatably mounted rollers (2a, 2b , 2c).

15. Shoe (1) according to one of claims 1 to 15, characterized in that the rollers (2a, 2b, 2c) with the end sections of the axes (3a, 3b, 3c) can be secured by a snap-in connection.

16. Shoe (1) according to one of the preceding claims, characterized in that the rollers (2a, 2b, 2c) are mounted on the axles (3a, 3b, 3c) by means of roller bearings, in particular by means of ball bearings.

17. Shoe (1) according to one of the preceding claims, characterized in that the shoe sole (4) in the middle part (6) adjoining the heel area has a section which consists entirely or partially of metal and / or hard plastic and has a flat and / or groove-like structured surface (8).

18. Shoe (1) with one or more rotatable rollers (2a, 2b, 2c), which, in each case transverse to the running direction, are arranged on one or more axes (3a, 3b, 3c), characterized in that Rollers (2a, 2b, 2c) can be fastened to the shoe sole in the heel area (5) or to the shoe heel (5) with the aid of a frame which can be fastened to the shoe.

19. Shoe according to one of the preceding claims, characterized in that the semiaxes 3a and 3b can be rotated rearward about a slightly vertical, essentially vertical ^" axis of rotation 11a or 11b, the angle of inclination of the axes 11a or 11b being so dimensioned is that at the front stop 34a or 34b, the sub '^"edges of the rollers are located below the lower edge of the shoe sole 4 2a and 2b, that is in the driving position of the semi-axes 3a and 3b and that the rear stop 12a or 12b of the half-axes, the lower edges the rollers 2a and 2b are located above the lower edge of the shoe sole 4 (running position).

20. Shoe according to claim 19, characterized in that the two sleeve axles 3a and 3b in the region of their axes of rotation 11a and 11b each have toothings 13 on the outer edges which are in engagement with one another.

21. Shoe according to one of claims 1-18, characterized in that both rollers 2a and 2b are attached to a rigid axle 3c, the axle 3c through a J-shaped opening 14 or a similar backdrop in the shoe sole 4 is guided transversely to the direction of movement and is fixed by a spring 15 in the shorter and / or in the longer leg of the J-shaped link, the short leg of the J being dimensioned such that the lower edges of the rollers 2a and 2b are below the lower edge the shoe sole 4 are located (driving position) and the long leg of the J is dimensioned such that the lower edges of the rollers 2a and 2b are located above the lower edge of the shoe soles (running position).

22. Shoe according to one of the preceding claims 1-18, characterized in that in the area of the heel 5 the heel consists of 2 adjoining elements and the surface 18 of both elements is designed to rise in the direction of movement and the lower element 16 extends in the longitudinal direction is relatively movable against the rest of the shoe and fixable in two different positions.

23. Shoe according to claim 22, characterized in that both the inclined lower surface of the upper element and the upper surface 18 of the lower element 16 are complementary to each other in the manner of a mating toothing or another, regularly rastered deformation transverse to the longitudinal direction of the shoe.

24. Shoe according to claim 22 or 23, characterized in that the lower element 16 with an upwardly acting spring 17 or with a screw or with a dovetail-shaped profile in a correspondingly shaped groove in the upper element or with another releasable pressure device on the upper element is fixed.

25. Shoe according to one of the preceding claims 1-18, characterized in that in the area of the heel 5 on each side of the shoe an additional side wall 19 is attached, to each of which in the direction of travel forward or backward about a horizontal axis of rotation 22 foldable roller carrier 20 is attached, which carries the semi-axis 3a or 3b for the roller 2a or 2b and the fixation 21, the fixation 21 holding the roller carrier either in the driving position in which the lower edges of the rollers 2a and 2b are located below the lower edge of the shoe sole 4 or in the running position in which the lower edges of the rollers 2a and 2b are above the lower edge of the shoe soles 4.

26. Shoe according to claim 25, characterized in that the fixation 21 holds the roller carrier in several different driving positions.

27. Shoe according to claim 25 or 26, characterized in that the two side walls 19 are not attached to the shoe, but are connected below the sole 4 and are removable as a unit from the shoe.

28. Shoe according to claim 27, characterized in that the length of the connection of the two side walls 19 is adjustable transversely to the direction of movement.

29. Shoe according to claim 27 or 28, characterized in that the two side walls 19 are connected to one or two releasable tension bands 23 above and / or behind the shoe.

30. Shoe according to one of claims 1-18, characterized in that the continuous axis 3c is provided on both sides immediately next to the rollers 2a and 2b with curved cranks 24 and the length of the cranks 24 is dimensioned such that it depends from the angular position of the cranks 24, the rollers 2a and 2b fastened thereon are either in the driving position, ie the bottom edge of the rollers 2a and 2b are below the The lower edge of the shoe sole 4, or the rollers 2a and 2b are in the running position, ie the lower edges of the rollers 2a and 2b are located above the lower edge of the shoe sole 4.

31. Shoe according to claim 30, characterized in that the Wi angular position of the cranks 24 can be fixed by one or two additional rods 25, which are articulated with one end at the center or at the crank near the center of the rollers 2a and 2b and are fixed at the other end to the shoe.

32. Shoe according to claim 30, characterized in that the angular position of the offset 24 is fixed in two different positions by a third offset 26 in the center of the axis 3c, a recess 27 in the center of the sole 4 for the third offset is provided, which is preferably dimensioned such that in the driving position the offset 26 points horizontally backwards in the direction of movement and is blocked from above by a stop inside the recess 27, and that in the running position the offset 26 points horizontally forward and by a second stop within the recess 27 is blocked upwards.

33. Shoe according to claim 31, characterized in that the third offset 26 is fixed within the recess 27 at the two stops for driving position and running position in each case by a flexible locking lug 28, which is matched in shape to the offset 26.

34. Shoe according to claim 30, characterized in that the angular position of the cranks 24 is fixed in two different positions by two additional cranks 26 on the edge of the shoe sole 4, two recesses 27 on the left and the right side for the additional cranks the sole 4 are provided.

35. Shoe according to claim 30, characterized in that an additional, releasable element 29, which can be fixed in at least 2 different angular positions, is applied to the axis 3c, which is provided twice with crank-shaped keyings 24, to prevent rotation of the axis 3c.

36. Shoe according to claim 35, characterized in that the anti-rotation device 29 can be released by moving the axis 3c transversely to the direction of movement and can be fixed again in the same or a different angular position.

37. Shoe according to the preceding claim 36, characterized in that a flattening of the axis 3c or a pin protruding to the side or a welded-on star or another, additional part is used to prevent rotation, for which purpose a corresponding counterpart is present in the shoe sole 4 ,

38. Shoe according to one of the preceding claims 1-18, characterized in that the two rollers 2a and 2b are attached to a removable wheel carrier 3d, which are mounted in at least 2 different positions in a corresponding recess 30 on the underside of the shoe soles can, with wheel carrier 3d and recess 30 are shaped so that the rollers 2a and 2b are either in the driving position or in the running position, depending on the mounting position.

39. Shoe according to one of the preceding claims 1-18, characterized in that an additional side wall 31 is fastened on the left and on the right side, on which is arranged a rail or a groove in which slides are movable which carry the semi-axles 3a and 3b and the rollers 2a and 2b - the rail being open towards the lower edge of the sole 4 and being shaped like a Z in the further course, - the knee being in the position near the open side of the rail, in which the semi-axles 3a, 3b adopt the driving position with the rollers 2a, 2b and - the end point of the rail is at the position in which the semi-axles 3a, 3b assume the running position and - the course of the rail between the aforementioned first crease and the end point again approaches the sole of the shoe (second crease).

40. Shoe according to one of the preceding claims 1-18, characterized in that one side wall 19 is arranged on the left and one on the right side, to each of which a roller carrier 33 is fastened such that the carrier is approximately in the direction of movement of the shoe facing axis of rotation 22 can be folded up, the roller carrier 33 together with the roller 2a or 2b attached to it so dimensionally is niert that the role is only in the lower position in the travel position.

41. Shoe according to one of claims 1-18, characterized in that a wheel carrier 35 is arranged on the left and right side, - - ^'' which carries a semi-axis 3a or 3b, whereupon the roller 2a or 2b are fastened, - and which is rotatably and displaceably mounted in the front region 7 of the shoe sole, - the axis of rotation running parallel to the axis of rotation of the rollers 2 and - wherein the wheel longitudinal member 35 at its rear end on the edge of the heel region 5 of the shoe sole 4 having a n by in- ^'en directed horizontal platform 36, - on which the rear portion of the heel region of the shoe sole 5 rests,

- The height of the platform 36 with respect to the semiaxes 3a and 3b is dimensioned such that the rollers 2a and 2b assume the driving position and

the heel region 5 can be removed from the platform 36 and can be pressed against the front edge of the platform 36 by means of the displaceability of the wheel longitudinal member 35 in the direction of travel,

- Which has a large, semicircular recess and (in one embodiment variant) is provided on the front edge with small fixing spikes 37.

42. Shoe according to claim 41, characterized in that the platform 26 has a retaining pin or a hook 38 on the front edge in place of the small fixing spikes 37, to which a suitable fitting on the shoe above the heel is arranged counterpart, the height of the mounting location of the hook 38 being such that the rollers 2a and 2b are in the running position.

43. Shoe according to claims 41 and 42, characterized in that the longitudinal wheel carriers 35 are connected to one another by a metal strip 36 below the shoe sole 4 and - that from the left longitudinal wheel carrier 35 each has a detachable and length-adjustable drawstring 23 in the front area and in the middle Area of the shoe extends over the shoe to the right wheel longitudinal member 35 and - that both wheel longitudinal members 35 are firmly connected at their rear ends and - that the wheel longitudinal members 35 can be removed from the shoe after loosening the drawstrings 23

44. Shoe according to claim 44, characterized in that - the rear ends of the left and right wheel carriers 35 are not fixedly connected to one another, but via two articulated connecting pieces and - that the metal strip 36 consists of two mutually displaceable parts which are mutually opposed are connected by tongue and groove transversely to the direction of displacement.

45. Shoe according to claim 38, characterized in that the wheel carrier 3d is vertically displaceable within the recess 30 from the driving position of the rollers 2a and 2b into the running position.

46. Shoe according to claim 45, characterized in that the wheel carrier 3d can be fixed by pins in the driving position and in the running position.

47. Shoe according to claim 45, characterized in that the wheel carrier 3d can be adjusted in height by at least one vertically extending screw 37 in the shoe sole 4 above the recess 30 and a corresponding internal thread 38 within the wheel carrier 3d.

48. Shoe according to claim 45, characterized in that the wheel carrier 3d is adjustable in height by an air cushion 39 within the recess 30.

49. Shoe according to claim 45 and 48, characterized in that there is an air pump 40 for inflating the air cushion 39, - which can be activated in one embodiment by a pin in the heel area 5 of the sole, and - that for deflating the air externally activatable valve 41 is present

50. Shoe according to claim 45, characterized in that the wheel carrier 3d is height-adjustable by one or more horizontally insertable wedge between wheel carrier 3d and recess 30.

51. Shoe according to claim 45, characterized in that one or more spacers 42 can be folded out or turned out from the top of the wheel carrier 3d, which before they are dimensioned such that in the folded-out or turned-out position of the spacers 42, the distance thus formed between the wheel carrier 3d and the recess 30 corresponds to the height difference between the driving position and the running position of the rollers 2a and 2b.

52. Shoe according to one of the preceding claims, characterized in that in the direction of movement in front of and / or behind the rollers 2 a bead extending in the direction of movement is formed, which is shaped at its end remote from the roller so that it merges into the side surface of the shoe and on its end near the roller is designed such that its outer surface is approximately flush with the outer surface of the rollers 2.

53. Shoe according to one of the preceding claims, characterized in that

- the rollers 2 are detachably fastened on a holding device 43 at the shoe and - ^'for each roller 2 has two pickup devices 43 are present,

- Of which the first is positioned so that the roller 2 attached to it is in the driving position (lower edge of the roller 2 is below the bottom of the shoe sole 4) and

- of which the second holding device 43 is arranged such that the roller attached to it is in the running position (lower edge of the roller 2 above the underside of the shoe sole 4), - the second holding device 43 on the outside of the shoe 1 in the front area, on both Pages or in rear area or on the underside of the shoe sole 4 can be arranged in corresponding recesses 44, the recesses 44 being matched to the width and diameter of the rollers 2.

54. Shoe according to the preceding claim 53, characterized in that the receiving devices 43 are provided with a counterpart 45 which can be passed through the roller 2 and which can be unlocked on the outside of the rollers 2, the locking means being a thread 46, a bayonet lock 47 or a lever 48 can be, which can be folded across the axis.

55. Shoe according to the preceding claims 53 and 54, characterized in that the counterpart 45 is non-detachably connected to the roller 2.