CN1988938A - roller skates - Google Patents

Abstract

The invention relates to a shoe comprising two or more rotatable rollers arranged on one or more axles, wherein the axles are oriented substantially transverse to the longitudinal direction of the shoe or transverse to the walking direction. Wherein the one or more axles respectively carry the one or more rollers and are fully or partially incorporated into the sole. The axle is located only in one third of the sole starting from the heel area of the sole and the arrangement of the axle and the dimensions of the rollers are dimensioned in such a way that it is ensured that the sole lands at least partially flat in the area where no axle or roller is provided. In which the roller can be lowered (skating position) and raised (walking position) very quickly by the user by means of a quick-lifting device, so that the shoe can be used for normal walking or running in the walking position.

Description

roller skates

technical field

The invention relates to a shoe comprising two or more rotatable rollers arranged on one or more axles substantially transverse to the longitudinal direction of the shoe, or transverse to the running direction orientation.

Background technique

The prior art discloses roller skates which are either detachably connected to ordinary shoes by a frame which can be strapped down, or which are firmly screwed to the shoe by a frame which presses against the bottom surface of the sole. The so-called "inline (inline) roller skating" can be considered as an extended design of the second type. This is a shoe that is firmly or releasably connected to a row of "in-line" rollers on the underside. The common feature of both inline skates and roller shoes is that they can only slide through them.

Particularly popular shoes are those designed in which two or more rollers follow one another in the direction of motion. The advantage of this construction is that the user can quickly learn to stand securely on the roller skate even without prolonged practice. Stable standing is possible if at least two rollers are arranged side by side as seen in the direction of travel and, as mentioned above, also at least two rollers are arranged one behind the other.

The disadvantage of this construction is that only the roller movement is possible with the shoe. In order to accelerate and generate a forward force component, it is possible for the user of the skates to adjust the direction of travel of the two skates slightly away from the main direction of motion, so that the skates are spaced apart from each other. During this phase, the user has to exert muscular forces that extend his legs and thus exert forces on the skates that are oriented obliquely to their current direction of travel. This force component directed in the direction of travel accelerates the roller skate and thus also the user standing on the roller skate.

To slow down, the same method can be used to accelerate with the left and right shoes in different directions of travel. For example, if the two shoes move away from each other, the user must use muscle force to counteract the stretch exerted on his leg by the roller skates in order to slow down.

However, the resulting acceleration or deceleration effect is relatively small. Therefore this method is not very common in the actual use of roller skates. On the other hand, it is used with so-called "serpentine plates".

A person would rather use to shift his weight on one leg while at the same time he extends the other leg in the direction of motion. When the desired stride distance is reached, the weight is transferred to the other leg and removed from the first leg, which again extends forward.

The "walking" movement is only possible with many restrictions, because the rollers arranged at each important support point of the foot prevent the foot from pressing against the hard base surface. Reasonably so, roller skates or inline skates cannot be worn on buses and trains. Likewise, walking on stairs with roller skates or inline skates should be avoided because of the risk of falling. In department stores or sidewalk areas, people wearing roller skates or inline skates are also at risk because these sports equipment can only be stopped quickly and reliably by experienced personnel.

Contents of the invention

Against this background, the object of the present invention is to design a shoe that can be used as a tool for skating and playing and as a fitness machine, and which, in addition to gliding, can also carry out walking or running movements and fast slow down.

For inexperienced users and for busy areas, it is very advantageous that the shoes according to the invention can be converted in this way by inexperienced users with different special tools, that is, after lowering In the heel area, the rollers that are in contact with the ground can be raised in such a way that they are no longer in contact with the ground during normal walking or running movements. During the above process, the rollers remain on the shoe. Another alternative is to remove the rollers or the rollers together with their axles from the shoe, or the frame on which the axles and rollers are fixed, and hand these parts over to the user for transport and storage.

To achieve this object, the invention proposes a shoe, which is characterized in that one or more axles carry in each case one or more rollers, said one or more axles being wholly or partly oriented towards Inserted vertically into the sole and with the axle located only in one third of the sole starting from the heel area of the sole, the arrangement of the axle and the size of the rollers are dimensioned so as to partially guarantee the The sole lands flat.

The axle equipped with the rollers is inserted into the sole in the rear third of the sole, that is to say in the heel region or in the heel element. The "heel area of the sole" in the sense of the present invention may extend, independently of the type of shoe, from the rear bottom end of the shoe in the direction of travel to the outside located in the first third. In the case of flat shoes, where there is no clear demarcation between the heel element and the front part of the sole, the heel region/heel of the shoe can also extend to the center of the sole in the sense of the invention.

With a correspondingly small roller diameter, it is possible that the small roller barely lifts (high heel effect). Because the axle on which the rollers are mounted is installed only in the rear part, that is to say preferably in the area of the heel element, the front area of the sole remains available for non-slip walking.

The gist of the invention is that the support for the left and right shoe according to the invention, in each case having the features stated in the claims, said support can obtain a force increase through initial running, and This force can be translated into a skating motion by shifting weight towards the heel area.

Thus, the user can achieve the desired speed by walking and/or running (exclusively on the front area of the shoe). The rear area of the shoe is then lowered, and the front area of the shoe is raised back up. In this state, only the rollers of the shoe according to the invention are in contact with the surface. The kinetic energy stored in the human mass now provides propulsion.

In order to slow down the speed of this movement, the closest thing for a user of a shoe according to the invention to running and walking for an ordinary person is to lower the front area of the shoe onto a surface. As soon as the surface is in contact with the ground, the user must suddenly switch to a running or walking motion, depending on the speed. This transition requires some discipline in order to maintain balance during the transition phase. Therefore, it should be pointed out that the shoe according to the invention should not be used in means of transport such as buses and trains, on stairs or in busy areas such as pedestrian areas or shops, in the case of stationary mounted rollers. This suggestion is only for users who are completely inexperienced or inexperienced.

However, the wearer can also exert force through a rolling motion as is known in serpentines. In order to keep the position stable during skating, the legs may instead be offset relative to each other as seen in the direction of travel. Braking takes place by moving the weight from the heel area of the sole in the direction of the ball of the big toe until the free sole comes into contact with solid ground in this area, that is to say in the area without the wheels. As an alternative to gradual braking, it is also possible to switch from a coasting movement to a walking movement at correspondingly low coasting speeds. However, quick braking is also possible by sloping the edge of the heel element of the shoe. The angle of attack with this means of braking depends on the position of the axle, that is to say the position of the axle is more away from the edge of the heel element and less the necessary tilting movement of the shoe backwards, which is required for braking.

In order to shift the weight onto the heel area during skating with the shoe according to the invention, the muscles are tensed which are not trained during normal walking or skating. This particularly involves the muscle groups of the thighs, calves, abdomen and back. Therefore, the shoe is in principle suitable for recreational sports such as acrobatic exercises and for orthopedic gymnastics.

Almost any type of shoe is conceivable for a roller skate according to the invention with the aforementioned hybrid properties, namely running shoes, loafers, pumps, high tops, denim shoes, women's shoes, high heels or even bath slippers . The sole ideally has the necessary thickness and stability, especially in the heel area, to accommodate the axle. However, the attachment of the wheel axle is also possible in principle with thinner soles. Especially suitable are sports shoes and casual shoes with rubber soles. These particular types of casual shoes, which young buyers are now particularly fond of wearing, are characterized by a sole with no perceptible transition between the heel area (heel element) and the rest of the sole. Where reference is made to the heel area within this application, that part of the sole means starting from the rear edge of the heel element and extending at least to the point on the sole marked with the imaginary vertical extension of the tibia.

It is within the scope of the invention to design the axle either as a continuous axle or as several axle segments. The continuous axle spans the entire width of the sole in the heel area, while several axle segments are inserted into the sole with one end portion closed at one end. The fastening in the sole can be achieved by threads. The outer ends of the axles are threaded or have a plug function by which the rollers inserted on the corresponding axles can be fastened. The rollers mounted on the protruding axle sections protrude laterally beyond the shoe and widen the shoe at least by the width of the rollers.

In an alternative embodiment, two rollers are mounted on two axles, the two rollers are fixed at both sides of the sole, and the two axles are offset relative to each other in the horizontal direction of the sole. The position in the coasting position is advantageously more stable due to the offset of the axle.

In a further refinement 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 element, while a third roller is fastened in the sole region in which the heel region turns into the rest of the sole. Installing three rollers per shoe has the advantage that even a shoe wearer with less practical experience can skate longer distances in performance situations because he stands in a more stable position. Due to the possibility of shifting a part of the weight in the direction of the ball of the toe, that is to say the front area of the sole, the balancing requirements during skating are no longer as high as for example with a continuous axle with two rollers.

In principle, it is of course possible to accommodate more than three rollers in the heel region of the sole.

In a preferred embodiment, it is conceivable that the two rollers fixed in the area of the heel element have a larger diameter than the third roller or each additional roller mounted in the front third of the heel area. If the axles are respectively connected to the sole at the same height, the rollers with larger diameter protrude further outside the lower edge of the sole, so that the shoe is slightly tilted forward.

Within the scope of the invention, the axle, whether continuous or closed at one end, is firmly or releasably connected to the sole. The continuous axle can be fixed in an opening through the sole or in a groove-like recess. The depth of the groove-shaped concave portion in the vertical direction of the sole may be variable. Furthermore, the mounting of the continuous axle in the groove-like recess has the advantage that the axle can be removed from the shoe together with the rollers fastened thereto. If the roller is mounted on an axle closed at one end, an opening corresponding to the outer shape of the axle is provided in the sole. In order to secure an axle that is closed at one end, the opening may have a thread that can be screwed into it.

In order to change the sole as little as possible into the area of the heel element by mounting the axle, the mounting of the axle is provided directly on the surface of the sole by means of fastening elements known to those skilled in the art.

In a further refinement of the invention it is provided that the sole has recesses in the heel region, said recesses accommodating the rollers in the manner of mudguards. In this way, it is advantageous to achieve rollers that do not lead to a widening of the sole and thus to a greater restriction of the freedom of movement, especially during walking.

Provision is made in an alternative embodiment of the invention for the rollers to have a slightly inclined position when viewed from the toe. This inclination is such that at least the axle segments for inserting the rollers have an outward inclination with respect to a plane parallel to the surface of the sole. Due to the inclination of the axles, the respective upper halves of two opposite rollers are brought closer to each other, while the lower halves are at a greater distance from each other. With this mounting, the coasting track is made wider, which leads to improved road adhesion stability. In addition, the inclined rollers, with a suitably rounded outer edge, enable the use of the shoe in show inlays (Showeinlagen) with breakdancing elements, while the performer supports himself on the ground with one hand while using the The sliding legs on inclined rollers make a circular motion. However, by means of the shoe according to the invention, a large number of complex acrobatic inlays are conceivable. In this case, performers can cover greater distances, gliding between the various acrobatic inlays in the arena in a manner similar to figure skating.

In another preferred embodiment it is provided that the rollers are suspended on axle segments which can be tilted laterally and that an element which can be loaded in tension and/or in compression is provided between each roller suspension part and the underside of the sole A connection is formed between them, which allows it to affect the position of the rollers by moving the weight. For example, it is evident that the connecting elements are installed diagonally from the lower edge of the suspension part of each roller up to the opposite position edge of the sole.

Within the scope of the invention, the axle rests directly on the inner side of the sole, or is connected indirectly to the sole, inserted into the sleeve.

It goes without saying that all possibilities known to a person skilled in the art from the field of roller skates, inline skates and skateboards for fastening axles and rollers can also be used for the shoe according to the invention.

To fasten the rollers, the continuous axle can have threads at both ends for screwing onto the lock nuts. Here the lock nut is used to fix the wheel axle in the opening provided for this purpose in the shoe sole. After the rollers have been plugged into the end sections of the axle, they are fastened with two additional nuts, which can be designed as fastening nuts. Alternatively, threads may be inserted into the sole, said threads being accessible from the side. For fastening the rollers, threaded screws are sufficient in the simplest case.

It goes without saying that all roller bearings or ball bearings known to those skilled in the art are conceivable for supporting the rollers on the end sections of the wheel axle.

In order to increase the acrobatic application provisions of the shoe, the sole is equipped with a metal plate or a hard plastic plate in the middle part of the bottom face adjacent to the heel area. Here, the metal or plastic surface can have a planar or grooved structure. With this shoe, it is possible to slide along hard edges or railings. Movement on this lower surface is known by the term "friction" and from the case of skateboards.

It is also within the scope of the present invention to secure the rollers to the shoe using a frame that may be securely strapped to the shoe or otherwise removably secured. It is conceivable here that one of the continuous axles is inserted into a groove-like recess in the shoe sole, said groove-like recess extending transversely to the sliding direction. By incorporating the wheel axle into the groove-shaped recess, the mountability of the frame is facilitated, while at the same time a torsionally fixed fixation of the wheel axle and thus the rollers is ensured.

As a further embodiment, the invention describes a shoe having two rotatable half-axles as supports for the rollers. In the skating position, these half-axles are oriented transverse to the direction of motion and extend from the edge of the shoe to near the center of the shoe. Here, they are mounted rotatably around an almost vertical axle. The axis of rotation is inclined slightly forward from the vertical in the forward direction. If the half-axle is pivoted rearwards about this axis of rotation, a slight inclination of the axis of rotation causes the roller to lift off the road. In this way, they switch from a skating position to a walking position. In the walking position, the two rollers are visible side by side in the heel area at the rear of the shoe.

In order to securely fix the sliding position, it is expedient to provide a recess in the pivot plane of the half-axle, into which recess the half-axle can be pressed by the weight of the user of the shoe. If the half-axle is to be pivoted from the skating position to the walking position, then in this embodiment the half-axle must first be moved slightly downwards in order to unload it from the recess. Only then can the backward pivoting movement be started.

The advantage of this solution is that the half-axles can be very wide when viewed from above, thereby providing space for axes of rotation with a large diameter. Viewed from the side, the axes of rotation can be dimensioned with a very low profile so that they require only very shallow grooves in the sole. Due to their large surface area, these half-axles are pressed against the sole in a tilt-resistant manner. The large diameter of the axis of rotation enables the axle to be produced in one mold from the same material as the sole. As a measure against the axial fall of the unloaded half-axle of the sole, it is sufficient to form a rim at the end of the half-axle with a semi-flexible sole material, over which the half-axle is pushed onto the axis of rotation.

Of course, all other forms of fixing the rotating part on the axle are usable.

In order to switch from the gliding position to the walking position, a separate manual operation by the user is required for each half-axle. A further advantageous embodiment of the aforementioned variant consists in that both half-axles have gear teeth at their outer edges in the region of their axes of rotation, said gear teeth meshing with each other. These teeth act as gears, but only within the pivot range of the half axles. The advantage of this configuration is that both half-axles can be moved simultaneously with only one manual operation. However, it must be noted that in this configuration only one of the two half-axles has protection against unintentional pivoting.

The present invention describes another arrangement in which two rollers are mounted on a rigid axle extending through the sole. In order for the axle to pass through the sole, an opening is provided in the sole. The opening has the shape of the letter "J" when viewed from the side. Springs pull the axle into one or the other side of the J-shaped opening. The short side of the "J" is dimensioned such that the lower edge of the roller is below the lower edge of the sole, that is, in the skating position. The long side of the "J" is sized such that the lower edge of the roller is below the lower edge of the sole.

The advantage of this configuration is a very simple wheel shaft design and a simple and strong fast lifting mechanism, which is easy for users to master.

In order to prevent foreign matter from penetrating into the J-shaped opening of the sole as far as possible, it is recommended to apply an additional covering layer on the axle, which covers the J-shaped opening in two places and compresses due to its flexible design on the side edge of the sole. This cover should be able to be folded back for cleaning.

The present invention describes another configuration that is effective as a quick-lift device. In this configuration, the roller is firmly and non-adjustably fixed to the sole. In the heel area, the sole has a rearwardly rising outer surface. Beneath this outer surface, a wedge-shaped element viewed from the side is installed. The wedge element is displaceable in the direction of movement. When the wedge element is in its rearward position, only the rollers are in contact with the road surface. However, when the wedge element is moved into its front position, the roller is no longer in contact with the road surface, but only the wedge element is in contact with the ground. The effect of this movement is that the shoe has a raised heel element, by means of which the user can carry out normal walking and running movements without restriction. In a variant of the configuration described above, the invention proposes that both the outer surface of the sole and the wedge-shaped adjustment elements in the heel area are provided with teeth or other regular pattern of deformations transverse to the direction of movement of the shoe. This surface configuration prevents unintentional slippage of the wedge-shaped adjustment element.

In another variant of the above arrangement, the wedge-shaped adjusting element is fixed in place by an upwardly acting spring or by a screw or by a dovetail profile in a correspondingly formed groove in the upper element, or by other detachable pressing means. on the soles.

In another configuration, the invention proposes to form two stabilizing side walls in the region of the rollers on the left and right sides of the shoe. Each roller frame is fixed on the side wall, and said roller frame can be tilted forward or backward in the direction of travel about a horizontal axis of rotation. The roller frame is triangular. Install the axis of rotation for the wheel frame, the semi-axle and the fixing mechanism for the roller in the three corners. It is recommended to dimension the triangular roller carriage such that in the skating position the axis of rotation marks the highest point of the triangle; the fixing mechanism is positioned approximately at the level of the lower edge of the sole and the half-axle of the roller is positioned lower than the axis of rotation of the carriage, respectively opposite on the lower edge of the sole. When the securing mechanism is disassembled and pivoted forward to such an extent that it is again at the level of the lower edge of the sole, the axle half of the roller moves upwards.

The advantage of this configuration is that the side walls and the roller frame can be produced in a very flat profile, eg from sheet metal. Therefore, the fast lifting device of this configuration hardly widens the shoe according to the invention.

Another advantage is that the distance of the half wheel axle from the axis of rotation of the roller carriage is much smaller than the distance of the fastening means. Consequently, the forces acting on the half axle 3 a generate a smaller force on the fastening means, said force being inversely proportional to the corresponding distance from the axis of rotation. The fastening means can thus be dimensioned correspondingly weaker.

An advantageous configuration is that the left and right fastening means can be connected to each other under the sole, for example by steel wires. It is expedient to provide groove-like recesses for inserting such wires in the sole, which are provided in certain regions with snap-in lugs for the clamping fastening means. In another sub-variant, several further slots can be provided along the pivot circle of the fastening means for insertion of the fastening means. In this way, different sliding positions of the rollers can be used. It is advantageous to be able to variably adjust the clearance to the ground in this way, especially when starting exercises with shoes according to this later application.

Another variant of the configuration described above with a pivotable roller frame is that the connection of the side walls is not on the shoe, but under the sole. In this way, the pairable side walls can be removed from the shoe as a complete assembly with their connecting parts and the roller carriage pivotable thereon.

In another variant, it is provided that the distance of the connecting part from under the shoe can be adjusted, for example, by means of two tongues engaging one another. In this way, different widths of shoes can be adapted.

In another sub-variant it is proposed to fix this removable assembly on both sides to the shoe by means of a tensioning strap extending above the shoe from the hole on one of the sides through one or two small holes to the small hole on the other side. For connecting and adjusting these tensioning straps, all known variants can be used, such as belt buckles with holes in the counterpart, snap connections or clamping connections.

The advantage of this configuration is that the rollers are raised in critical areas, and the user can then walk and run normally, or even remove the rollers entirely. In this way, any desired shoe can be equipped.

A further arrangement according to the invention provides for a continuous rigid axle carrying rollers at both ends thereof. In this case, the shaft is bent twice at right angles at each end. In this way, both ends of the axle are designed to be crank-shaped. Rollers are mounted and fixed on these ends. The wheel axle is rotatably mounted in a perforation extending transversely through the sole. When the crank is up, the roller is in the highest position (walking position). When the crank is down, the roller is in the lowest position (coasting position). The advantage of this configuration is that the axles can be produced inexpensively from round steel, but are nevertheless strong and can withstand even maximum loads. Also placing the axle in the sole can be produced relatively simply. The regulation principle is easy to understand for the user. If the length of the crank is dimensioned in such a way that it can extend vertically in the gliding position and in the running position, no very large loadable grooves are required for fixing the wheel axle in its two positions. For fixing, the invention proposes one or two additional bars extending laterally on the shoe and fixed at one end to the midpoint of the roller and at the other end detachably fixed to the shoe superior. If the distance of the crank arm fixing point in the gliding position or in the walking position is designed such that the crank arm extends vertically in both states, it is sufficient for the rod to have a fixing point on the shoe. The advantage of this configuration is that only one fixing mechanism is provided. Since it must be easily detachable by the user, all variants known to those skilled in the art can be used, such as a pin with a surrounding flange, which engages in a correspondingly shaped recess in the sole material, or a hook-shaped grip. fixed mechanism, or other known designs.

In a further design of the above arrangement, the invention proposes that in addition to the two crank-shaped bends at the ends of the axle, there is another bend in the middle of the axle. For the most convenient manufacture, it is proposed that this bend should have the shape of a ring. Corresponding to the additional bend, a groove is provided in the center of the sole into which the bend fits. An advantageous design of this arrangement is to form on the outside of the sole one or more additional snap lugs made of the semi-flexible material of the sole and with the bend embedded behind it.

Preferably, when viewed from the side, the middle bend forms an angle of 90° to the two cranked bends at the ends of the axle. The advantage of this type of configuration is that the central bend can fit into a groove in the underside of the sole, and the bend can be turned through a pivot angle of 180° between these two grooves. A pivot angle of 180° is also advantageous for the crank-shaped design at both ends of the wheel axle, as it is equivalent to going from the walking position (raise the wheel with a vertical upward crank) to the coasting position (the roller cranks vertically downward) down) path.

Another safety related design is actually getting the taxiing position of the axle when the center kink is pointing backwards opposite to the taxiing direction. If rolling over an uneven spot or a foreign body during skating, the force will act impulsively on the crank-shaped bend at the end of the wheel axle. In this way, a torque is developed at the center region of the axle. This torque is absorbed by the center bend and transmitted via the center bend pressing into the rear groove with increased contact force. Unlike this latter application, if the center kink is in the groove at the front in the skating position, when rolling over a foreign object while creating torque on the axle, the kink may separate from the groove and the rollers will move away from them gliding position. The rear area of the sole will drop down to the road. The user has great difficulty absorbing the sudden delay force. Therefore, the center kink should face rearwards in the taxiing position.

The advantages of the above configuration include the fact that, under manual operation by the user, both rollers are switched from the skating position to the walking position, and that both positions can be easily adjusted by means of snap lugs made of the material of the sole Protect. It is also relatively simple to manufacture the wheel axle from round steel material. It is also supported in the heel region of the sole by means of an additional block.

A further improvement of this configuration is that it is possible to subdivide the central bend into two bends arranged on the edge of the shoe according to the design. Thus, a continuous axle is formed which is each bent three times at its edges. The first bend assumes the function of the stop for the gliding position and the travel position, and the two further bends form the cranks to which the rollers are fastened. For those kinks that serve as stops, in this arrangement a suitable groove is formed in each case at the edge of the sole. This groove also has snap lugs made of the sole material, bent and engaged behind said snap lugs. Like the arrangement with a central bend on the wheel axle, the two bends for the stop in the coasting position should also point backwards in the coasting position.

The advantage of having two edge bends for the stop is that no contamination and foreign objects can get into the groove. For the user of the shoe, the stop bends are visible outwards, which greatly contribute to the intuitively correct operation of the quick-lift mechanism.

Another embodiment of the continuous axle bent at both ends in the manner of a crank according to the invention is to install a different form of anti-rotation device in the middle of the axle, by means of which the axle can be fixed in the gliding position or in the walking position. in position. To this end, the invention also proposes to use a pin or a welded star protruding laterally from the axle, or to protrude laterally to flatten the axle. In order to accommodate these anti-rotation means, corresponding counterparts must be provided around a perforation which penetrates the sole transversely, said counterparts having to be able to access the anti-rotation means into two different angular positions.

In order that such an anti-rotation device can be released by the user with only one manual operation and fixed again in a new position, the invention proposes that the anti-rotation device only extend over a small part of the continuous axle and is mounted on both axles. near one of the two crankshaft-like bends at the end. In order to release this anti-rotation device, it is proposed to displace the axle in the transverse direction in the direction of movement until the anti-rotation device emerges from its corresponding counterpart in the sole. The axle can thus be rotated in the opposite direction and retracted until the anti-rotation device engages in a new angular position. For this purpose the distance between the two cranks must be enlarged so that the anti-rotation device has sufficient space to be able to be removed from its counterpart.

For reliable operation of this arrangement, locking means must be provided which prevent lateral displacement of the axle. A suitable possibility is to install slides along the side walls of the shoe, which can be pushed in front of the anti-rotation device in such a way that the anti-rotation device cannot emerge from its counterpart in the axle. An alternative is a pin, which preferably passes through the perforation in the anti-rotation device in the direction of movement of the shoe and thus prevents a lateral displacement of the anti-rotation device. When sizing this additional locking device, it should be noted that the user of the shoe according to the application described below accelerates as with prior art roller skates, by turning the shoe in a direction which deviates slightly from the main skating direction , and shift his weight laterally up in the direction of this motion. The forces generated transversely to the main direction of motion form in the case of roller skates—as described above—a force component directed towards the main direction of motion. 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 wheel axle is provided.

As a further alternative to the quick-lifting device, the invention proposes an arrangement in which two rollers are rotationally fixed to a wheel frame which extends through the sole transversely to the direction of movement. The wheel frame fits in a corresponding groove on the bottom surface of the sole.

In the structurally simplest design of this arrangement, the wheel carrier has a rectangular shape. The rectangular fixture is designed in such a way that it can be separated from the sole, rotated 180° and mounted again with the same fixture.

In order to guide the wheel frame in the converted state, it is advantageous to have a rod in the center of the wheel frame, which is directed forward or backward towards the heel; The ends are mounted rotatably and pivotably on the shoe. As can be seen from above, the wheel carrier including the guide bars has a T-shaped configuration.

The transition between the gliding position and the walking position is subdivided into three phases. First the wheel carrier is released from the groove and removed from the sole, wherein the wheel carrier is secured by the guide rod. In a second phase, the wheel carrier is pivoted 180° about its midpoint, and then the roller, which was previously on the left, is positioned on the right side of the shoe. In the third stage, the wheel carrier is placed on the sole and snapped into the groove on the underside of the sole.

The advantage of this configuration is that the continuous wheel axle can consist of a single piece of round steel and the wheel carrier together with the guide rods associated therewith can be formed as a large-area plastic element. It is conceivable to use the same or similar material as the sole material, so that the walking performance of the shoe is not affected by the quick lifting device.

The T-shaped structure on the underside of the sole is clearly visible in this configuration to the user of the shoe according to this latter application and can therefore be further emphasized visually by a corresponding design and used as part of a promotional campaign. Distinctive features are emphasized.

In another configuration according to the invention, the shoe is equipped on both sides with additional side walls, on which side walls the rails arranged in a Z-shape extend. A slide moves on the track, said slide carrying the half-axles for the rollers. The track is arranged in such a way that the sliding part displaceable thereon can be removed from the track in the direction of the sole. When the slider moves in the other direction, it reaches the first turning point of Z which is the first characteristic point on the track. This point is installed such that it corresponds to the sliding position of the roller. The weight of the user acting on the roller during skating ensures that the roller automatically moves to this position on the track. However, an additional protection such as a small snap lug is recommended. When the user continues to move the slider on the Z-shaped track, the end point of the Z marks the walking position of the rollers. When the rollers are adjusted in this position, their lower edge is above the lower edge of the sole. The advantage of this configuration is that three states are possible for the roller: "roller removed", "roller in skating position" and "roller in walking position".

A further configuration according to the invention provides that a side wall is arranged on each side of the shoe, on which side walls the roller carriage is rotatably mounted. The axes of rotation of these roller carriages extend approximately in the direction of movement. The roller stand can be pivoted almost 180°.

When the axis of rotation for the roller carriage is positioned above the sole, the relationship between the height of the pivot above the sole, the distance between the center point of the roller and the pivot, and the diameter of the wheel must be matched so that when the roller carriage is in The rollers are in the sliding position during the lower position, and the rollers are in the walking position when the roller frame is in the upper position.

A variant of this arrangement is that the additional side walls can be omitted. Instead of this, mount the pivot of each roller frame on the side of the sole. The roller frame, together with the rollers fixed thereto, is rotatable under the sole from this position of the pivot. Preferably, the rollers and roller carriages pivot into correspondingly formed grooves on the underside of the sole.

When the roller is mounted on the roller frame in such a way that it is in the walking position above the roller frame (the roller rotates under the sole), it is therefore possible to form the other side of the roller frame in such a way that it corresponds to the grounding of the sole surface.

In the gliding position, the roller is located with its entire diameter below the lower edge of the sole; thus, in the gliding state a comparatively high ground clearance results.

Another variant of this arrangement is that the roller carriage is arranged above the rollers in the travel position. The side surfaces of the rollers are thus visible from below. When the distance from the axis of rotation to the pivot is less than the radius of the roller, the roller in the walking state protrudes laterally out of the sole. The advantage of this arrangement is that the ground clearance of the individual rollers can be determined during the coasting state independently of the diameter of the rollers.

In another configuration, the invention proposes longitudinal racks on the left and right sides of the shoe, which are connected to each other in the heel area. This creates a U-shaped frame configuration that conforms to the outer edge of the sole. The longitudinal wheel carrier carries a roller on each side. In an embodiment of this configuration, the longitudinal carrier is rotatably mounted in the front region of the shoe. The axis of rotation extends parallel to the sole and transversely to the direction of movement of the shoe. In its rear region, the longitudinal wheel carrier has a platform which has an approximately sickle-shaped profile. When viewed from above, this platform is shaped such that the rear area of the heel area of the sole can rest downwards on the platform. For laying down, the longitudinal wheel carrier must be slidable forwards in the direction of movement. This state is the configured taxi position. For the walking position of the wheel frame, the wheel frame must be pushed back relative to the rest of the shoe; thus the heel area of the shoe slides down from the platform at the end of the longitudinal wheel frame, now the longitudinal wheel frame can be raised and again slightly Move forward. The fixing spikes on the front edge of the platform penetrate slightly into the wall of the shoe and ensure in this way that the longitudinal wheel carrier is fixed vertically in the heel area. To secure the spikes from slipping out of the shoe, it is advantageous to have a tension strap extending from the left side of the wheel frame above the shoe to the right wheel frame area.

Instead of fastening spikes, pins or hooks can be provided, which engage in corresponding counterparts in the shoe. The counterpart is mounted on the shoe at such a height that when the wheel frame is raised, it reaches the walking position of the shoe.

In a further development of this configuration, it is proposed to connect the left and right sides of the wheel carrier to each other with a metal plate in the front shoe area below the shoe. The metal plate can be moved forwards or backwards under the shoe; moreover, due to the large distance between the metal plate and the heel area, it is possible to make the wheel frame slightly around the metal as the axis of rotation without impairing the walking performance Plate pivots.

In this configuration, a removable unit is possible with a very simple and intuitive quick lifting mechanism for the user. In a further refinement, a detachable variant is proposed in which the left and right sides of the wheel carrier are connected together via the rear region via two articulated middle parts. For optimum stability of the unit, the pivots of these additional intermediate parts should extend perpendicular to the surface of the sole. The two most important advantages of these articulating intermediate parts are the adaptability to different shoe sizes and shapes, and the ability to fold the device when it is not in use.

The main advantage of this configuration is the provision of an add-on that can be fitted to any shoe and matched to their size. The platform in the rear area acts as a quick lift. Furthermore, the entire unit can be quickly removed from the shoe. As a further advantage, the unit is clearly recognizable from the outside as an additional element. The outer surface offers designs for on-trend styling. In particular, the front area of the longitudinal wheel carrier can take various forms.

A further highly variable set of quick-lifting devices is obtained from different embodiments of the configuration of the wheel carrier, said quick-lifting devices being located in grooves in the sole transversely to the direction of movement of the shoe. Different variants are possible for the vertical adjustment if the wheel carrier is guided vertically in this groove by means of a guide, such as a tongue-and-groove engagement.

In one construction, a screw mounted perpendicular to the surface of the sole is rotatably positioned above and in the groove of the wheel frame. The internal thread in the wheel carrier fits this screw. The wheel frame moves up and down by turning the screw. Here, it should be noted that the screw has a relatively large diameter if it is to be actuatable without a tool.

Another example of such an arrangement is an air cushion mounted between the wheel carrier and the groove. When the air cushion is inflated, acting as a quick lift, the air cushion moves the wheel frame downwards towards the outer surface of the sole and thus converts the roller from a walking position to a skating position. In a variant of this design, the invention proposes the integration of an air pump that can be activated externally by means of a pin in the heel area. Exhaust air from the air cushion from an externally accessible exhaust valve.

In another variant of the arrangement of the wheel carrier in the groove in the sole, it is proposed to insert a wedge between the wheel carrier and the groove. For this, the wedge must move parallel to the outer surface of the sole. As a movement mechanism for the wedge, for example a screw with a corresponding internal thread in the sole is conceivable. Another variant is that the wedge has snaps similar to the displaceable element under the heel area of the shoe, which are also provided here, by means of which the wedge can be fixed in two different positions.

In another variant, the spacer slides between the wheel frame and the groove and can be folded or rotated outside the wheel frame.

As a further option for all the above-mentioned configurations, the invention proposes the configuration of the rim before and/or behind the roller. These rims are designed in such a way that their outer surface runs flush with the outer surface of the roller near the roller, gets closer and closer to the outer surface of the shoe with increasing distance from the roller, and finally turns into the outer surface of the shoe. These rims perform the function of wheel deflectors and prevent the outwardly protruding rollers from becoming entangled with the rollers of other adjacent shoes during use. Other smaller objects on the road are pushed sideways by these rims and cannot get caught between the roller and the shoe.

Another configuration of the shoe according to the invention is that the roller is fixed to one of the two socket means, the first socket means being mounted so that the roller fixed thereto is in a sliding position, that is to say, The lower edge of the roller 2 is below the lower edge of the sole 4 .

The second socket device is installed such that the roller fixed thereon is in the walking position; therefore the lower edge of the roller 2 is below the bottom surface of the sole.

The second socket arrangement can be mounted at any desired location on the outside of the shoe. That is to say mounted on the side near the socket for the sliding position. Either elsewhere on the sides in the front area, or closer to the heel in the rear area. When the shoe is equipped with two rollers, the corresponding socket means for the walking position can eg be arranged both on one side, preferably on the outside of the shoe, so as not to collide with the other shoe. Or one socket is positioned on the toe and the other socket is positioned on the heel. Or two sockets overlap each other and are installed on the heel.

The socket arrangement can also be integrated on the underside of the sole. For this purpose, corresponding grooves in which the rollers fit must be provided in the sole. The advantage of this position is that the rollers are not visible from the outside in the walking position. In order not to make the recesses dirty, they can be closed with a removable cover. As a protection against loss, the cover should be fixed to the sole by a flexible strap, or it can be folded against spring pressure.

In the skating position of the roller, the socket must be able to withstand the forces occurring during skating and transfer them further to the shoe. In the running position of the roller, the socket must only support the inherent weight of the roller itself.

In the sole or in the shoe, the socket in its simplest form is an internal thread in which a screw fits as a counterpart. An advantageous embodiment is the fastening of screws (anti-lost) on the rollers. For quick tool-free exchange, it is preferred according to the invention that the actuating element on the screw head—similar to a wing nut—has a sufficiently large actuating surface on the largest possible diameter.

As an improved form of the socket, the present invention prefers a bayonet connection instead of screws. A bayonet connection works like a screw, but with a different stroke. When the bayonet connection is in the end position, the stroke initially decreases to 0 and then becomes negative for short distances. In this way, the risk of unintentional release is reduced.

Another alternative is a lever that is articulated to the socket assembly and can be folded transversely to the axis of rotation of the roller. In the unfolded state, the lever fits through the hole of the roller. After folding, the tension spring presses the lever against the roller, thus keeping the roller in this position. The hinge point of the extension spring is only as far from the pivot point of the lever as the size of the opening in its roller allows. However, the leverage itself is longer. In this way, the operating force for unlocking is reduced.

Description of drawings

Further details and features of the invention will be explained in greater detail below with the aid of some examples. The illustrated examples should not limit the invention but merely illustrate it. In the schematic:

Figure 1 shows a shoe with two rollers in the heel area;

Figure 2 shows a shoe with three rollers in the heel area;

Figure 3 shows a shoe with inclined rollers;

Figure 4 shows a cross-sectional view of a shoe with an inclined half-axle that can be rotated backwards;

Figure 5 shows a bottom view of a shoe from below with half axles that can be swiveled away backwards and can engage with each other;

Figure 6 shows a cross-sectional view of a shoe sole with a J-shaped opening for guiding a continuous axle;

Figure 7 shows a cross-sectional view of a shoe with a fixed roller and a displaceable wedge-shaped heel element;

Figure 8 shows an additional side wall with a triangular roller frame that can be fixed on the above-mentioned additional side wall, and the triangular roller frame can pivot towards the direction of movement;

Figure 9 shows a shoe with an additional side wall and a laterally pivotable roller frame;

Figure 10 shows a shoe sole with a bent axle and rods for fixing the axle;

Figure 11 shows a shoe sole with an axle bent at both ends and additionally in the middle;

Figure 12 shows a shoe sole with an axle passing through the sole transversely, the axle being bent 3 times at both ends;

Figure 13 shows a shoe sole with an axle bracket that can be removed and reinserted rotated 180°;

Figure 14 shows a shoe with additional side walls and a Z-shaped groove in which a slider on which a roller is fixed can move;

Figure 15 shows a longitudinal wheel carrier with two rollers as separate components, which can be snapped under a normal shoe.

Detailed ways

FIG. 1 shows a shoe 1 according to the invention with rollers 2 a and 2 b fastened on a continuous axle 3 a in the heel region 5 of the sole 4 . The characteristic is that the axle 3a is inserted into the heel area 5 of the sole 4 through a straight hole. The heel area 5 extends substantially over one third of the sole 4 ; adjoining the heel area 5 is a middle area 6 which has a friction plate 8 . Friction plates 8 in the central area 6 enable a sliding movement on hard edges or pipes. Such stunts are known from skateboarding situations. Between the sole 5 and the roller, lock nuts 9 are screwed onto the axle heads 3a and 3b. In the heel region 5 of the shoe 1 the diameters of the rollers 2a and 2b are dimensioned such that the front surface of the sole 7 is in direct ground contact with the ground. Thus, when the support of the shoe according to the invention loads the heel area 5 and the front sole area 7, it stands firmly on the ground. After a short start-up state, in which mainly the front area of the sole 7 is used to transfer the weight to the heel area 5 . With the lifting of the front sole area 7 from the ground and the simultaneous balancing, the walking motion becomes a skating motion.

FIG. 2 shows a shoe according to the invention in another embodiment from below. In addition to the two rollers 2 a and 2 b mounted in the heel region, a third roller 2 c is fastened on the axle 3 c on the outer edge of the heel region in the direction of the toe. In this embodiment, the demands on the balance of the person who wears the shoe according to the invention are slightly less than if the shoe had only two opposing rollers. Of course, the support of the third roller 2c can also be achieved when only two rollers 2a and 2b are installed, by the fact that the two rollers 2a and 2b are arranged offset relative to each other. It is also conceivable, for example, that the axle 2a is closed at one end in the sole 5 and is used to offset the bearing roller 2a in the direction of the toe compared to the axle 3b of the bearing roller 2b.

Figure 3 shows another alternative embodiment of the roller skate according to the invention. In this case, the axles 3 a and 3 b for supporting the two rollers 2 a and 2 b are inserted obliquely in the heel region of the sole 5 . In the illustrated embodiment, the axle parts 3a and 3b are screwed into threads provided for this purpose in the sole. Between the sole 5 and the roller, a lock nut 9 is screwed onto the axle heads 3a and 3b. In the illustrated embodiment, the rollers 2 a and 2 b are secured by insertable securing means 10 . As the axles 3a and 3b are inclined, the track becomes wider. This is advantageously associated with better road stability and stable stance. Due to the rounded shape of the rollers 2a and 2b, the shoe is also suitable for lateral loading in the exemplary embodiment shown. For example, it is conceivable to use the shoe for acrobatic performances, in which the wearer of the shoe rotates with the outstretched leg around a hand supported on the ground.

Figure 4 shows a side sectional view of the shoe near the centerline.

Also shown is the half-axle 3a which can be rotated backwards towards the heel area, the roller 2 and the fixing nut 10 arranged thereon.

The axis of rotation 11 for the half axle 3 a is shown slightly forwardly inclined from the vertical. As can be clearly seen in FIG. 4 , by rotating about the slightly forwardly inclined axis of rotation 11 , the roller is converted from a gliding position (not shown here) into a walking position - shown here - in which the lower edge of the roller 2 is located Above the lower edge of the sole 4.

FIG. 5 shows the shoe in longitudinal section in FIG. 1 from below, but unlike FIG. 3 , while the rollers are not in the walking position, but in the sliding position. Both half-axles 3a and 3b pivot about the axes of rotation 11a and 11b of the front stops 34a and 34b and are thus in the walking position. In FIG. 5 the rear stops 12 a and 12 b in the heel region 5 can be seen. In the illustrated variant, the half axles 3a and 3b have intermeshing gear teeth 13 on their outer edges in the region of their axes of rotation 11a and 11b. It can be clearly seen from FIG. 5 that during the movement of one of the half-axles, the other half-axle is also driven via the gear teeth and thus rotates further.

FIG. 6 shows a sectional view through the sole in the direction of movement. In particular, in the region of the J-shaped opening 14 , said J-shaped opening 14 extends transversely to the direction of movement. A continuous rigid axle 3c is movable in the slot-shaped opening. FIG. 6 shows, with continuous lines, a cross-sectional view of the axle 3c in its position on the shorter side of the "J". The shorter side of the "J" is adapted to the diameter of the roller 2 in such a way that the rollers 2a and 2b are in the sliding position when the stop reaches the inside of the shorter side. It also shows how the tension spring 15 ensures that the axle 3c is pressed against the stop of the J-shaped groove. The running positions of the rollers 2a and 2b are shown with dotted lines. In this position, the continuous axle is in the other side of the "J". There, the axle is fixed by tension springs 15 . It can be seen that in this position of the rollers, their lower edge is above the lower edge of the sole 4 .

Figure 7 shows a longitudinal section of a shoe with a roller 2 fixedly mounted on a rigid axle. In the area of the heel 5, it can be seen that the heel element comprises two elements which rest against one another, wherein the lower element 16 is displaceable in the longitudinal direction of the shoe. In FIG. 7 the lower element 16 is shown in its front position 16 . As can be seen clearly from FIG. 7 , the lower element 16 , by moving longitudinally with the inclined surface 18 in the direction of travel, ensures that the lower edge descends, in particular to the lower edge of the fixedly mounted roller 2 . In this way, the rollers are deactivated and switched from the skating position to the walking position. In position 16 (walking position of the shoe), the lower element 16 of the heel element is shown with a continuous line. In dotted lines it can be seen that the lower element 16 is pushed to the position of the rear end of the shoe completely against the direction of advancement. In this position, the lower edge of the element 16 is higher than the lower edge of the roller. By moving the lower element 16 , that is to say without moving the roller itself, the roller 2 is brought into the sliding position. In FIG. 7 it is shown that the interface 18 has a toothed surface. The teeth serve to secure the lower edge 16 against inadvertent pushing. Here too, a ring is drawn at the end of the element 16 , by means of which ring the element can be displaced in the direction of travel.

FIG. 8 shows an additional side wall 19 in side view, which is screwed onto the side edge of the shoe. Of the shoes, only the sole 4 is shown here. The roller frame 20 is installed on the side wall 19 . In FIG. 8 , the triangular shape of the roller frame 20 can be seen. The roller frame 20 is pivotable back and forth in the direction of travel about an axis of rotation 22 which extends transversely to the direction of travel. At the other two points of the triangle there are half axles 3 a for the rollers 2 a and fastening means 21 by means of which the roller carriages are fixed in grooves in the lower edge of the sole 4 . FIG. 8 shows with a continuous line the position of the roller carriage 20 in which the roller 2 is in the walking position (dotted line), ie the lower edge of the roller is above the lower edge of the sole 4 . When the fastening mechanism 21 is released, the roller carriage 20 pivots about the axis 22 and the fastening device reaches the position 21 ′, whereby the axle half 3 a and thus the roller 2 a are lowered and transferred to the gliding position 2 .

In FIG. 8 , two small holes are shown on the additional side wall 19 , through which a tensioning strap 23 can be guided. In the embodiment as a removable assembly, in which the side wall 19 is not firmly mounted on the shoe 4, but is connected under the sole with the side wall on the other side of the shoe, the tension strap is used for (removable ground) to secure the assembly to the underside of a standard shoe.

FIG. 9 shows a view of the rear of a shoe with a sole 4 and a rear heel area 5 in a three-dimensional representation. On the side of this shoe, an additional side wall 19 is fastened. At the upper end of this side wall there is provided an axis of rotation 22 which points in the direction of travel of the shoe. The roller frame 33 is pivotable about this axis of rotation 22 . The roller frame 33 carries the half-axle 2, and the half-axle 2 supports the roller 2a. In the view shown in FIG. 9 , the roller carriage 33 is in the lower position, that is to say in the sliding position of the rollers. The view shown in FIG. 9 can be understood as that the roller 2 can be pivoted upwards by folding the roller frame 33 and thus can be switched to the walking position of the shoe.

FIG. 10 shows the sole 4 of a shoe, in particular the heel area 5 . FIG. 10 shows a continuous axle 3 c and, in a variant, a crank-shaped bend 24 at each end of the axle 3 c. Figure 10 shows the running position of the rollers 2a and 2b. In this position, the crank bend 24 points upwards. FIG. 10 also shows a rod 25 which extends from the center point of the roller to the heel region 5 of the sole 4 . There, the rods 25 are each fastened with a pin. As can be clearly seen from FIG. 10, the rod 25 can also be used for fixing when the wheel axle is in the sliding position, that is to say with the crank-shaped bend 24 facing downwards, and at the same time fixes the sole 4 in a walking position. at the same location.

Figure 11 shows a view of the underside of the sole, in particular the sole in this figure 11 rotated by 180° relative to its normal position in use (standing on its head). The continuous axle 3 c has a crank-shaped bend 24 at each end and, furthermore, a further bend 26 in the center. This bend 26 fits in a central groove-shaped recess 27 of the sole 4 . In Fig. 11a the grooves 28 are directed forwards towards the direction of travel of the sole. However, the groove 27 additionally provides an equally sized space rearwards towards the heel. This space coincides with the bend 26 accommodated therein, when the axle 3c is pivoted through 180°. FIG. 11 a shows the gliding position; FIG. 11 b shows the walking position, which is produced by rotating the axle 3 c by 180°.

In contrast to FIG. 11 , FIG. 12 shows the sole 4 with the heel region 5 in such a way that the sole must be shown from above, ie in the actual user position. However, for the sake of clarity, this upper part of the shoe has been omitted and only the sole 4 is shown. Axle 3c extends across the sole, said axle being bent three times at each end. It can be seen that the inner bends 26 respectively engage in grooves 27 on the lower edge of the sole 4 , the bends 26 following the bends 24 . In FIG. 12 the bend 24 points upwards. This means that the roller 2a is in the walking position, that is to say raised from the road to this height.

FIG. 13 shows a plan view of the rear area 5 of the sole 4 . Here, too, there is no upper part of the shoe formed thereon. Figure 13 shows the axle bracket 3d which runs through the sole transversely to the direction of movement. In the lower view of Fig. 13, the axle bracket 3d is shown removed from the sole and inserted again rotated by 180°. In this position, the rollers are in the walking position. There is a hollow cavity on both sides of the shoe when the axle frame 3d is in the walking position. When the axle stand 3d is inserted into the sole 4 and is in the walking position, this cavity is filled by the axle stand 3d.

Figure 14 shows a general view of the sole in three dimensions. It can be seen that additional side walls 31 are provided on both sides of the sole. There is a Z-shaped groove in each of these side walls. In the Z-shaped groove, a slide 32 moves, said slide 32 carrying the half-axles 3a and 3b and the rollers 2a and 2b. In FIG. 14 it can be seen that the Z-shaped groove opens towards the lower edge of the sole 4 . The slide 32 can be removed from the slot through this opening.

In Fig. 14, it is shown that the sliding member 32 is in the running position of the roller 2a in the Z-shaped groove. In this position it is in the first bend of the Z-shaped groove. This is because the diameter of the roller 2 is positioned on the shoe in such a way that the lower edge of the roller 2 is arranged above the lower edge of the sole 4 . Figure 14 also shows the taxiing position. In the gliding position, the slider 32 is at the end of the Z-shaped slot. This end point is installed so deep in the shoe that the lower edge of the roller 2 is located below the lower edge of the sole 4 .

FIG. 15 shows a three-dimensional representation of a longitudinal wheel carrier 35 , particularly in a variant as a completely removable component. A left and a right longitudinal carrier 35 are shown. The longitudinal carriage 35 accommodates the rollers 2a and 2b. The left and right wheel frames are connected to each other by metal strips 36 . It is shown here in a width-adjustable form, that is to say that the metal strip 36 comprises two mutually engageable parts comprising a tongue and a groove for securing transverse to the sliding direction. At the heel end, the middle part can be seen, on which a platform 36 is correspondingly mounted horizontally on the inner side. The platform 36 is intended to accommodate the heel element of a standard shoe. At the front edge of the platform 36 spikes 37 are provided. An additional tensioning strap 23 is not shown, which connects the front regions of the two longitudinal carriages to each other.

The walk position small platform 36 has an important function for this configuration. The rear edge of the heel area 5 of the sole 4 rests on the platform 36 when the attachment is in the walking position. The sole of the shoe must be strong enough at the rear edge of the heel element, so that this area guarantees a correct landing. In this position, the shoe, together with its heel, is lifted from the walking surface. Only two rollers are in contact with a walking surface such as a sidewalk, road or roadway. In the front area of the shoe, the connecting metal strip 36 is so flat in profile that the surrounding area of the sole of the sports shoe can still descend to the road.

If the longitudinal wheel carrier is no longer in the sliding position, the longitudinal wheel carrier can either be removed from the shoe, or it can remain on the shoe in a slightly raised position on the heel side region. Fixing nails 37 are embedded in the rear wall on the heel side of the shoe. The entire structure of the longitudinal wheel frame is secured against falling by the tension strap 23 which goes around the shoe at the front. The tension strap presses the peg not far into the shoe. In this way, the user can load the longitudinal carrier even when the shoe is in the walking position.

In Figures 16a-16c, the walls of the corresponding shoe 1 are shown in cross section. Also shown in section is the roller 2 with deep groove ball bearings. The socket arrangement 43 is always shown in side view in three variants:

FIG. 16 a shows a thread 46 as socket means 43 . In side view, counterparts 45, ie screws, are shown. The counterpart 45 is shown with a large tab as a manually operated element and a corresponding nut for clamping the ball bearing.

FIG. 16 b shows a bayonet connection 47 as socket device 43 . In the hole of the shoe 1 , a screw-shaped guide of the plug 47 can be seen, in which the guide pin of the counter piece 45 moves. For the rest, this variant is identical to FIG. 16a.

FIG. 16 c shows a variant with a foldable lever 48 . Lever 48 is pressed on the bearing of roller 2 by extension spring. The large structural dimensions of the socket arrangement 43 in this variant can be seen. The socket device protrudes to the outside of the wall of the shoe 1 .

It should be noted that Figures 16a-16c also apply if the part shown with the shoe 1 represents the sole 4.

list of reference signs

1 shoe

2a, 2b Large roller

2a' down to the roller in the coasting position

2c small roller

3 axle (general term for axle 3a-3c)

3a, 3b Axle or half-axle with one end blocked

3c continuous rigid axle

3d wheel frame for rollers

4 sole

5′ heel area of the sole

6 The central area of the sole

7 Front area of the sole

8 Friction plate in the central area of the sole

9 lock nut

10 Fixed nut or fixed plug connection device

11 Tilting axis of rotation for half axles 3a, 3b

12 Rear stop for half axles 3a, 3b

13 gear teeth

14 Transversely through the J-shaped opening of the sole 4

15 Lifting springs for continuous axle 3c

16 The lower element with the adjustment slope of the heel element

17 for adjusting the pressure spring of the heel element 16

18 Adjust the sloped upper surface of the heel element

19 Additional side wall in heel area

20 foldable roller frame

20′ collapsible roller frame in skating position

21 Fastening elements for collapsible roller carriages

21' Fastener for the collapsible roller carriage in the sliding position, that is to say the lowered roller 2a

22 Axis of rotation for collapsible roller carriages

23 for the side wall 19 is fastened into the tension strap of the pattern of detachable add-on assembly

24 The zigzag bend of the axle 3c

25 A rod for fixing the angular position of the bend 24

26 Additional bends in the area of the axle 3c

27 Groove in the sole 4 for accommodation and as a stop for additional bending in the axle 3c

28 Flexible snap lug in groove 27 matched with bend 26

29 anti-rotation device for axle 3c

30 Suitable for the 4 middle grooves of the sole of the wheel frame 3d

31 side wall with Z-shaped track

32 The sliding part that can move on the track of side wall 31

33 Laterally foldable roller frame

34a, 34b for front stop of half axles 3a, 3b

35 longitudinal wheel frame

36 platform at the heel end of the longitudinal wheel frame 35

37 Fixing nails at the front edge of platform 36

38 The hook on the heel of the shoe 1 is so as to receive the corresponding piece of the longitudinal wheel frame 35

39 Air cushion

40 Air pump for air cushion 39

41 Valve for air cushion 39

42 Spacers folded from the wheel frame 3d

43 socket device

44 Grooves for roller 2 on the underside of the sole

45 is used for the counterpart of socket device 43

46 The thread on the socket device 43

47 bayonet connection device on the socket device 43

48 The lever on the socket device 43

Claims (56)

1. footwear (1), comprise two or more rotatable rollers (2a, 2b, 2c), above-mentioned rollers (2a, 2b, 2c) be arranged on one or more wheel shafts (3a, 3b, 3c) on, wheel shaft (3a, 3b is transverse to the longitudinal direction of footwear or transverse to the direction of travel orientation basically 3c), it is characterized in that

-((3a, 3b 3c) vertically are installed in the sole (4) one or more wheel shafts 2c) fully or partly, reach for 2a, 2b to carry one or more rollers respectively

-wheel shaft (3a, 3b 3c) only are positioned at from 1/3rd of the sole (4) of the heel area (5) of sole (4) beginning, wherein,

-wheel shaft (3a, 3b, layout 3c) and roller (size 2c) is determined size in this wise for 2a, 2b, so as sole (4) be not provided with wheel shaft (3a, 3b, 3c) and roller (2a, 2b guarantee to flat the landing of small part in zone 2c) (7).

2. according to the described footwear of claim 1 (1), it is characterized in that, each roller is fixed on the end of a continuous wheel shaft (3a) in the heel area (5) that is positioned at sole (4), (3a is 3b) on the end perhaps to be fixed on the wheel shaft that end obturation stops in two heel area at sole (5).

3. require one of them described footwear (1) according to aforesaid right, it is characterized in that, each roller (2a, 2b) all be fixed in the both sides of sole (4) in two heel area (5) that are positioned at sole (4) mutually the wheel shaft of biasing (3a, 3b) on.

4. require one of them described footwear (1) according to aforesaid right, it is characterized in that, two roller (2a, 2b) be fixed on the both sides in the heel area (5) of sole (4), and another the 3rd roller (2c) is fixed on 1/3rd end from the sole (4) of heel area (5) beginning of sole (4) in the outside.

5. require one of them described footwear (1) according to aforesaid right, it is characterized in that, a plurality of rollers (2) are on both sides are separately fixed at a plurality of wheel shafts (3) in the heel area (5) of sole (4).

6. require one of them described footwear (1) according to aforesaid right, it is characterized in that, (2a 2b) has than the big diameter of the roller (2c) of 1/3rd end of the sole that is arranged on heel area (5) beginning from sole and/or stretch out in the lower limb of sole (4) biglyyer on vertical direction to be fixed on roller in the heel area (5) at rear portion.

7. require one of them described footwear (1) according to aforesaid right, it is characterized in that, (3a, 3b is 3c) with detachable connection of sole (5) for the wheel shaft of continuous wheel shaft or the inaccessible termination of an end in sole (5).

8. require one of them described footwear (1) according to aforesaid right, it is characterized in that, one or more continuous wheel shafts (3a) are held by the recessed portion of groove shape, the recessed portion of described groove shape is especially made in heel of a shoe element (85) in sole (5) or in the part of sole (5) with the variable degree of depth in vertical direction, and above-mentioned wheel shaft (3a) is respectively securely or in the detachable recessed portion that is fixed on the groove shape.

9. according to the described footwear of claim 1 (1), it is characterized in that, wheel shaft (3a, 3b 3c) are arranged in the zone of heel of a shoe element (5), and

-completely or partially insert in vertical direction in the heel of a shoe element (5), perhaps

-be fixed on the surface of heel of a shoe element (5).

10. require one of them described footwear (1) according to aforesaid right, it is characterized in that, sole (4) is at 1/3rd grooves that especially have side direction in the zone of heel of a shoe element from the sole (4) of the heel area (5) of sole (4) beginning, described groove is determined size in this wise, make that (2a 2b) is positioned at the rotatory that wherein and not limits them to roller at least in part on vertical and horizontal size.

11. require one of them described footwear (1), it is characterized in that wheel shaft or be used for supporting rollern at least (2a, (3a 3b) is arranged to rise towards the outside with respect to the plane parallel with sole (4) surface wheel shaft portion 2b) according to aforesaid right.

12. require one of them described footwear (1) according to aforesaid right, it is characterized in that, roller (the 2a that on lateral, tiltably hangs, 2b), can be connected with the downside of sole (5) by the element of tension force and/or pressure-loaded by one or more, wherein (2a, 2b) inclination with respect to a plane parallel with sole (5) surface can be influenced by mobile weight roller.

13. require one of them described footwear (1), it is characterized in that (3a, 3b 3c) are connected with sole (4) wheel shaft directly or indirectly with extending in a sleeve according to aforesaid right.

14. require one of them described footwear (1), it is characterized in that each wheel shaft (3a according to aforesaid right, 3b, 3c) all have in the end and be used to the roller (2a, 2b, locking nut 2c) that screw in the screw thread of locking nut (9) and/or be used to lock rotatable supporting.

15., it is characterized in that (2a, 2b 2c) can be by latchable jockey and wheel shaft (3a, 3b, end sections locking 3c) for roller according to the described footwear of claim 1-15.

16. require one of them described footwear (1) according to aforesaid right, it is characterized in that, roller (2a, 2b 2c) can pass through rolling bearing, especially by ball bearing be bearing in wheel shaft (3a, 3b, 3c) on.

17. require one of them described footwear (1) according to aforesaid right, it is characterized in that, sole (4) in the mid portion that is connected with heel area (6), have completely or partially make by metal and/or rigid plastics and have a part on a surface (8) flat and/or groove shape structure.

18. have one or more rotatable roller (2a, 2b, footwear 2c) (1), described roller (2a, 2b, 2c) on wheel direction of principal axis, be arranged on transverse to direction of travel one or more wheel shafts (3a, 3b, 3c) on, it is characterized in that, (2a, 2b 2c) can be fixed on by the framework of firmly fastening in the heel area (5) of sole or on heel of a shoe element (5) each roller.

19. require one of them described footwear (1) according to aforesaid right, it is characterized in that, half wheel shaft (3a and 3b) can rotate backward around the rotation (11a or 11b) of the perpendicular that travel direction tilts a little on one day, size is determined at the inclination angle of its axis (11a or 11b) like this, make backstop (34a or 34b) in front locate, the lower limb of roller (2a and 2b) is positioned at the below of the lower limb of sole (4), that is to say the sliding position that is in half wheel shaft (3a and 3b), and locate in the back backstop (12a or 12b) of half wheel shaft, the lower limb of roller (2a and 2b) is positioned at the top (walking position) of the lower limb of sole (4).

20., it is characterized in that two and half wheel shafts (3a and 3b) its outer edges place in the zone of its rotation (11a and 11b) has intermeshing tooth (13) according to the described footwear of claim (19).

21. according to one of them described footwear of claim 1-18, it is characterized in that, two rollers (2a and 2b) are fixed on the rigidity wheel shaft (3c), wheel shaft (3c) leads transverse to the direction of motion by J-shaped opening (14) in sole (4) or similar groove, and be fixed on by spring (15) in the short limit and/or limit of J-shaped groove than length, the minor face of J-shaped groove is determined size like this, so that the lower limb of roller (2a and 2b) is positioned at the below (sliding position) of the lower limb of sole (4), and size is determined on the long limit of J-shaped groove like this, so that the lower limb of roller (2a and 2b) is positioned at the top (walking position) of the lower limb of sole.

22. according to one of them described footwear of claim 1-18, it is characterized in that, in the zone of heel 5, the heel element comprises two adjacent elements, and the interface of two elements (18) is designed to rise against the direction of motion, and following element (16) can be in a longitudinal direction with respect to the remainder activity of footwear, and can be fixed in two different positions.

23. according to the described footwear of claim 22, it is characterized in that, the upper surface (18) of the tilting lower surface of top element and following element (16) perhaps has the distortion that the other longitudinal direction transverse to footwear is pressed regular grid by the mode complementation of the gear teeth that are meshing with each other.

24. according to claim 22 or 23 described footwear, it is characterized in that, following element (16) by upwards effect spring (17) or by screw or by the dovetail profile in the correspondingly configured groove of element in the above or by other dismountable hold down gag, be fixed on the top element.

25. according to one of them described footwear of claim 1-18, it is characterized in that, each fixes an additional sidewall (19) on the both sides of footwear in the zone of heel (5), the fixing respectively turning rolls (20) that can tilt forward or backward around a horizontal axis of rotation (22) on this sidewall (19) along line of travel, this turning rolls carrying is used for half wheel shaft (3a and 3b) and the fixed mechanism (21) of roller (2a and 2b), wherein fixed mechanism (21) remains on turning rolls in sliding position or the walking position, the lower limb of roller in above-mentioned sliding position (2a and 2b) is positioned at the below of the lower limb of sole (4), and the lower limb of roller (2a and 2b) is positioned at the top of the lower limb of sole (4) in above-mentioned walking position.

26., it is characterized in that fixed mechanism (21) remains on turning rolls in a plurality of different sliding positions according to the described footwear of claim 25.

27., it is characterized in that two sidewalls (19) are not to be fixed on the footwear according to claim 25 or 26 described footwear, but interconnect, and can be used as and wholely from sole, take out in sole (4) below.

28., it is characterized in that the length of the connection of two sidewalls (19) can be regulated transverse to the direction of motion according to the described footwear of claim 27.

29. according to claim 27 or 28 described footwear, it is characterized in that, two sidewalls (19) can be above footwear and/or the back be connected with one or more dismountable tension bands (23).

30. according to one of them described footwear of claim 1-18, it is characterized in that, continuous wheel shaft (3c) tightens in both sides and is connected on the bending (24) that roller (2a and 2b) next door is provided with crank shape, and the length of each bending (24) is determined size like this, make according to the position, angle that bends (24), make the roller (2a and 2b) that is fixed thereon or be in sliding position, that is the lower limb of roller (2a and 2b) is positioned at the below of the lower limb of sole (4), perhaps roller (2a and 2b) is in walking position, that is to say that the lower limb of roller (2a and 2b) is positioned at the top of the lower limb of sole (4).

31. according to the described footwear of claim 30, it is characterized in that, the position, angle of bending (24) can be fixing by one or two additional bar (25), described bar (25) hingedly is fixed on the central point of roller (2a and 2b) or is fixed in the bending near the central point of roller (2a and 2b) with one end thereof, and is fixed on the footwear with its other end.

32. according to the described footwear of claim 30, it is characterized in that, the position, angle of bending (24) is fixed in two different positions by the 3rd bending (26) in the middle of wheel shaft (3c), wherein be arranged on the center of sole (4) for the 3rd bending one groove (27), the preferred so definite size of described groove (27), make in sliding position, bending (26) is pointed to backward and is blocked by the backstop in the groove (27) from top along direction of motion level, and in walking position, bending (26) level is pointed to forward and is upwards blocked by second backstop in the groove (27).

33. according to the described footwear of claim 31, it is characterized in that, fixing by flexible buckle lug (28) respectively in the 3rd bending (26) that groove (27) is inner at two backstop places that are used for sliding position and walking position, the shape of above-mentioned buckle lug (28) and bending (26) coupling.

34. according to the described footwear of claim 30, it is characterized in that, the position, angle of bending (24) is fixed in two different positions by the edge of two additional bendings (26) at sole (4), and wherein two grooves (27) are arranged on the left side of sole (4) and the bending that the place, right side is used to add.

35. according to the described footwear of claim 30, it is characterized in that, go up at the dual wheel shaft (3c) that is provided with crank shape bending (24) and to install one additional dismountablely and can be fixed at least two elements (29) in the different positions, angle, be used to prevent wheel shaft (3c) rotation.

36., it is characterized in that counter rotation device (29) can be by unclamping transverse to travel direction moving shaft (3c), and can be fixed on once more in the identical or different position, angle according to the described footwear of claim 35.

37. require 36 described footwear according to aforesaid right, it is characterized in that, the portion of scabbling of wheel shaft (3c) or the star of pin that extends laterally or seam or other extention are used as counter rotation device, and this its corresponding counterpart is present in the sole (4).

38. require one of them described footwear of 1-18 according to aforesaid right, it is characterized in that, two rollers (2a and 2b) are fixed on dismountable wheel carrier (3d), described wheel carrier can be installed on the bottom surface of sole in the corresponding recesses (30) in two different positions at least, wherein wheel carrier (3d) and groove (30) are shaped like this, make according to the installation site roller (2a and 2b) or be in sliding position or be in walking position.

39. require one of them described footwear of 1-18 according to aforesaid right, it is characterized in that, each additional sidewall (31) is fixed on left side and the right side, track or groove are set on this sidewall, sliding part can be movable in above-mentioned track or groove, described sliding part carries half wheel shaft (3a and 3b) and roller (2a and 2b)

-track opens wide towards the lower limb of sole 4, and on its extension, form Z-shaped,

-be positioned near the open side of track crooked position in half wheel shaft (3a, 3b) with roller (2a 2b) is in position in the sliding position, and

The terminal point of-track be positioned at half wheel shaft (3a 3b) is in the position of walking position, and

The curve of-track moves towards between above-mentioned first bend and terminal point once more near sole (second bend).

40. require one of them described footwear of 1-18 according to aforesaid right, it is characterized in that, each sidewall (19) is arranged on left side and the right side, each turning rolls (33) is fixing in this wise on described sidewall, make that turning rolls can be around the upwards upset of approximately pointing to along the direction of motion of footwear of rotation (22), turning rolls (33) is determined size in this wise with the roller that is fixed thereon (2a and 2b), so that roller only below position is in the sliding position.

41., it is characterized in that each vertical wheel carrier (35) is fixed on left side and the right side according to one of them described footwear of claim 1-18,

Each one and half wheel shaft (3a or 3b) of-described wheel carrier (35) carrying, roller (2a or 2b) is fixed on above-mentioned half wheel shaft,

-in the front region (7) of sole, the rotatable and supporting movably of wheel carrier (35),

The rotation that-rotation is parallel to roller (2) extends, and

-vertical wheel carrier (35) is gone up the platform (36) that has inside level on one day on the edge of the heel area (5) of sole (4) in its back-end,

The back region of the heel area of-sole (5) leans against on the wheel carrier (35),

Wherein the height of platform (36) is determined size in this wise with respect to half wheel shaft (3a and 3b), makes roller (2a and 2b) be in sliding position, and

-can from platform (36), take out heel area (5) by means of the mobility of vertical wheel carrier (35) along line of travel, and can be pressed on the front edge of platform (36),

-wheel carrier (35) has big semi-circular recesses, and (in one embodiment) is provided with little staple (37) on leading edge.

42. according to the described footwear of claim 41, it is characterized in that, platform (36) has steady pin or hook (38) in front on the edge in the position of little staple (37), be arranged on the top of heel on the footwear with the counterpart of its coupling, the height of the installation site of hook (38) is determined size like this, makes roller (2a and 2b) be in walking position.

43., it is characterized in that vertically wheel carrier (35) interconnects by the bonding jumper (36) in sole (4) below according to claim 41 and 42 described footwear, and

-each one dismountable and vertical vertical wheel carrier (35) of adjustable tension band (23) from the left side is crossed vertical wheel carrier (35) that footwear extend to the right side in the front region of footwear He in the zone line, and

-two vertical wheel carriers (35) interconnect securely in their rear end, and

-vertically wheel carrier (35) can take out from footwear afterwards unclamping tension band (23).

44. according to the described footwear of claim 44, it is characterized in that,

The rear end of-the left side and right side wheel carrier (35) is not to interconnect securely, but connects by two hingedly interconnective intermediate members, and

-bonding jumper (36) comprise two can intermeshing part, these parts interconnect by tongue and the groove transverse to glide direction.

45., it is characterized in that wheel carrier (3d) can vertically move on to the walking position from the sliding position of roller (2a and 2b) according to the described footwear of claim 38 in groove (30).

46., it is characterized in that wheel carrier (3d) can be fixed in sliding position and the walking position by pin according to the described footwear of claim 45.

47. according to the described footwear of claim 45, it is characterized in that, by at least one in sole (4) at the vertically extending screw (37) of the rotatable supporting in groove (30) top and the height that the corresponding internal thread (38) in wheel carrier can be regulated wheel carrier (3d).

48. according to the described footwear of claim 45, it is characterized in that, can regulate the height of wheel carrier (3d) by the mattress (39) in the groove (30).

49., it is characterized in that according to claim 45 and 48 described footwear, in order to give mattress (39) inflation, an air pump (40) is set,

-in one embodiment, this air pump (40) can reach by the starting of the pin in the heel area (5) of sole

-have one can be used to discharge air from the valve (41) of outside starting.

50. according to the described footwear of claim 45, it is characterized in that, wheel carrier (3d) but can be inserted in the height that wedge between wheel carrier (3d) and the groove (30) is regulated wheel carrier (3d) by one or more levels.

51. according to the described footwear of claim 45, it is characterized in that, one or more separators (42) can overturn out from the top side of wheel carrier (3d) or rotate, and it determines size in this wise, promptly in the upset or position of rotation of separator (42), formed thus distance is corresponding with the sliding position and the difference in height between the walking position of roller (2a and 2b) between wheel carrier (3d) and groove (30).

52. require one of them described footwear according to aforesaid right, it is characterized in that, front and/or back at roller (2) on the direction of motion constitute a projection of extending along the direction of motion, this projection is in its place, end shaping in this wise away from roller, make that its transition is the side of footwear, and locating to constitute in this wise, so that its outer surface extends with the outer surface of roller (2) approx with flushing near the end of roller.

53. require one of them described footwear according to aforesaid right, it is characterized in that,

On-roller 2 detachable the storing apparatus (43) that are fixed on the footwear and

-for each roller (2) two storing apparatus (43) are arranged,

-wherein first storing apparatus is located in this wise, so that the roller that is fixed thereon (2) is in sliding position (lower limb of roller (2) is positioned at the below of the bottom surface of sole (4)), and

-wherein second storing apparatus (43) is provided with in this wise, so that the roller that is fixed thereon (2) is in walking position (lower limb of roller (2) is positioned at the top of the bottom surface of sole (4)),

-the second storing apparatus (43) can be arranged in the zone of the outside, the both sides in the front region of sole (4) or back of footwear (1) or on the bottom surface in corresponding recesses (44),

-groove (44) is matched with the width and the diameter of roller (2).

54. require 53 described footwear according to aforesaid right, it is characterized in that, each storing apparatus (43) all is provided with the counterpart (45) that can pass roller (2), this counterpart can release on the outside of roller (2), wherein locking device can be screw thread (46), bayonet coupling device (47) or lever (48), and this lever can be folding transverse to wheel shaft.

55. require 53 and 54 described footwear according to aforesaid right, it is characterized in that counterpart (45) is connected with roller (2) non-dismountablely.

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