ES2315892T3 - DEVICE FOR TRANSFORMING UNDER DEMAND A STREET SHOE IN SPORTS SHOES AND SHOES ADAPTED TO THIS DEVICE. - Google Patents

Abstract

Two plates ( 2, 3) are arranged under a forefoot and a heel and comprisies longitudinal edges ( 2 a, 2 b, 3 a, 3 b) inclined with respect to the transversal axis of a sole and the lateral edges ( 2 c, 2 d: 3 c, 3 d) which are not parallel and have different lengths. Winglets bonded to the lateral edges are fixed to the sides ( 7, 8 ) of the sole by pins or claws. Said invention can be used for transforming a city shoe in to a golf shoe.

Description

Device to transform on demand a street shoes in sports shoes and shoes adapted to this device.

The present invention relates to a device to transform on demand a city footwear in sports shoes and shoes equipped with this device.

In a particularly intended application, the footwear is transformable to be adaptable to the practice of a sport, for example golf or walking on rough terrain, and to also allow walking normally on a surface ordinary such as a smooth floor, a pavement or a lining of floor, for example to move in a gym or a locker room or a reception room before or after the practice of sport.

Numerous devices have been proposed constituted by one or several platelets provided with spikes and suitable to be fixed under the sole and held in position by some various media

US Publication No. 1,552,512 describes a device consisting of a single platelet to be applied under the heel and presenting a front wing and a rear wing that rise and lean respectively against the leading edge and the edge heel back.

US Publication No. 2,118,778 describes a device consisting of a narrow U-shaped platelet that the heel is placed down and that is fixed by some screws that cross the wings of the platelet and penetrate the sole of the heel.

US Publication No. 6,092,306 describes a device consisting of two platelets that are fixed under the sole, respectively at the anterior and posterior ends of the sole, thanks to side legs that rise against the sides and against the front or respectively against the part back of the sole, to pinch over an upper flange of The sole

Publication DE 867 968 describes a device consisting of a single U-shaped platelet that apply in the middle sole area between the sole and the heel and whose wings are provided with steps for some ribbons of retention.

US Publication No. 3,713,233 describes a device consisting of a single flexible elastic plate adjacent to an extension with the bottom face of the shoe heel, this platelet being suitable for occupying a service position in which the platelet is located under the extension , through the footwear, or a retracted position in which the plate is located behind the footwear with the peaks hidden between the footwear and the platelet. In this solution, the extension is solidary, by gluing or manufacturing, of the sole of the heel and the platelet is provided with wings suitable to be folded against the sides of the footwear and fixed to these sides by hollow buttons that pass through holes of the wings and threaded on some screws that pass through perforations of the sides of the
footwear.

More recently (publication FR 2 831 030), it has proposed a device consisting of two designed platelets to be arranged respectively under the front part of the foot and under the heel, each platelet being at a distance from the end corresponding sole, presenting two longitudinal edges that extend through the sole and two side edges of the that split two lateral fins that rise against the sides sole verticals, comprising these fins and sides sole vertical means that cooperate for fixing separable from the platelet with the footwear.

In the invention described in this publication, the platelets are embedded in some holes formed in the face bottom of the sole to prevent platelet movement during the march.

These dumps can create problems of differential wear, can reduce the life of the sole  and can increase the cost of manufacturing footwear.

The present invention has in particular the object an easy device to place and remove, effective, that contributes to give footwear a satisfactory appearance, without presenting the drawbacks of known devices.

This is achieved according to the invention, with a device consisting of two platelets (2, 3; 20, 30) designed to be arranged respectively under the front part of the foot and under the heel, each platelet being at a distance from the end corresponding sole, presenting two longitudinal edges (2a, 2b; 20a, 20b; 3a, 3b; 30a, 30b) that extend through the sole and two side edges (2c, 2d; 3c, 3d; 20c, 20d; 30c, 30d) provided with lateral fins (8, 9; 80, 90) that rise against the vertical sides of the sole, comprising these fins and the vertical sides of the sole means that cooperate for the detachable platelet fixation with footwear, characterized because platelets (2, 3; 20, 30) are applied in protrusion on the underside of the shoe, because the two side edges of the same platelet are not parallel and have widths different, and because the fin (9; 90) adjacent to the lateral edge of greater width rises against the side of the footwear that will be turned outwards and is provided with two studs (14; 140) to embed in corresponding holes of the sole, while that the fin (8; 80) adjacent to the lateral edge of smaller width Go up against the side of the shoe that will be turned inwards and is provided with a means of fixing to the detachable footwear manually.

In particular embodiments:

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said fixing means separable is a stud to be embedded in a corresponding hole of the sole;

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said fixing means separable is a claw formed at the upper end of the fin to fit in with the side or top of the sole;

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the lugs comprise some manual gripping means that facilitate its removal from the holes of the sole;

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the fins with the lugs and the claws leave manufacturing with platelets;

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the footwear presents some recesses on or above the sole to receive the claws;

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the sole presents some planes to accommodate the fins;

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the holes formed in the sole are also designed to serve for aeration of the footwear;

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some hollow pins are introduced into said holes of the sole and said lugs are hollow stems supported by the fins and suitable for being retained in said pins and extracted on demand;

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these stems or some of the stems comprise a tubular body that goes through a perforation of the fin and that is inserted into the pin and a head accessible from the outside of the fin and that allows to extract the pin shank

Some examples will not be described below. Limitations of footwear according to the invention with reference to the figures in the annexed plan, in which:

Figure 1 is a perspective of a right footwear seen from the left side, with two platelets according to the invention in position, respectively under the front part of the foot and under the heel;

Figure 2 is an analogous perspective to that of figure 1 after platelet removal;

Figure 3 is a view in perspective of the right foot shoe of figure 1 equipped with  platelets, and seen from the left side;

Figure 4 is a perspective of the plate located under the front of the foot;

Figure 5 is a cross section vertical footwear, in the platelet region located under the front part of the foot and when the placement of the platelet, seen from the front of the shoe;

Figure 6 is a section analogous to that of figure 4, the placement being finished;

Figure 7 shows an example of Barrette;

Figure 8 is a view analogous to the of Figure 5 in the case of a fin variant;

Figure 9 shows an example of fixing rod;

Figure 10 shows another example of Barrette,

Figure 11 is an enlarged view of a means for fixing a fin;

Figure 12 is a view below of the sole of a shoe for left foot equipped with platelets according to the invention;

Figure 13 represents a variant of the platelets of a device according to the invention;

Figure 14 represents schematically a phase of the device placement of the Figure 13 on a low shoe for the left foot;

Figure 15 represents schematically a low footwear for right foot equipped with a device according to figure 13;

Figure 16 represents two views in perspective of a high shoe (boot or boot), for right foot (PD) equipped with a device according to the invention, the footwear seen above and on the side of the footwear;

Figure 17 represents the same shoes that figure 16 but seen below and on the right side  of footwear;

Figure 18 represents the same footwear than in figures 16 and 17, in the course of equipment, and

Figure 19 represents in perspective the two platelets of the footwear of figures 17 and 18.

The city footwear for right foot (PD) shown in figures 1 to 3 is provided with two platelets (2, 3) carriers, respectively under the front of the foot (4) and under the heel (5), applied in highlight on the face bottom of sole S (see figure 12), at distance from the ends of the sole.

The plate (2) located under the front of the foot (fig. 4) has two rectilinear longitudinal edges (2a, 2b) that form an acute angle between them.

Preferably these two edges form each other An angle of 20º to 40º.

The plate has two lateral edges (2c, 2d) that are provided with respective fins (8, 9) that are adjacent to these edges and rising up the sides (6, 7) of the sole.

The two lateral edges (8, 9) have some uneven widths and are not parallel. In fact, the platelet has the shape of an irregular quadrilateral whose opposite sides are neither parallel or of the same length (figure 12). This form contributes to the maintenance of the platelet position from eventual frontal shocks.

The small fin (8) located against the side left footwear for right foot (6) is provided with a hole (10) to allow a rod (11) supported by a extension (12) fixed to the fin by a hinge (13) traverse this hole when the extension is folded over the fin figures (4 to 6). This rod (11) is intended to enter a pin (14) introduced to the bias on the left side (6) of the sole. He Stem is solid or hollow.

In a variant (fig. 8), the small fin (8) directly supports the rod (11) which is then provided of a head (11b) that allows it to be extracted by hand or a tool

The major fin (9) supports two fixed studs (15, 16) intended to enter hollow pins (17, 18) corresponding inserted in holes on the right side (7) of the sole (fig. 11).

Preferably, the small fin (8) is perpendicular to the platelet while the major fin (9) is perpendicular or inclined outward with respect to the platelet (figures 3 and 4).

The same considerations apply to the platelet (3) located under heel.

Preferably, the sides of the sole against which are applied platelet fins have some planes or recesses that ensure a good contact of the fins with these sides. In figure 12, they have been represented in M the planes (6a, 7a) for the fins (8, 9) of the platelet (2) applied under the front of the foot of the footwear left.

Platelets are designed so that the small fins are turned inwards, that is towards the interval between shoes or boots, so that the user can easily start removing a platelet by placing your foot corresponding on the other knee and then taken the fin small to remove from the sole the fixing rod that supports this extension or, if the fin supports a removable stem, acting over the head of this stem to remove the stem from the sole to separate this fin from the sole, after which it can lift the platelet and remove from the sole the lugs that fix the major fin These operations can be facilitated if the platelet and its fins have a certain ability to deformability

Figure 11 is an enlarged view of a sole at the point of an aeration hole (20) of the footwear that cross the sole (S) and have received a hollow pin (17) suitable for receiving a hollow rod (15) for fixing the fin (9) of the platelet. That rod has only been represented by its head (15a) visible on the outside of the fin.

The platelet and the fins are preferably of thin metal of a maximum thickness of a few millimeters. This provided with spikes, stretch marks, etc., in the anointing of the sport that will be practiced The user can thus have a set of platelets that allow the practice of different sports or adapt to a variety of terrains

In the preceding embodiments, the edges Longitudinal platelets are rectilinear. In a variant, These edges can be curvilinear. In fact, the edges have any desired profile to facilitate the maintenance of the platelet and its resistance to frontal impacts.

When the edges are curvilinear, the axes means of the curves form between them an acute angle comprised preferably in the range of 20º to 40º.

Figures 13 to 20 refer to variants of realization.

In figure 13, some variants of referenced platelets (20 and 30) with their fins (80) and (90). These platelets have longitudinal edges curvilinear

In addition, in these variants, the major fin (90) supports two lugs (140) suitable to be embedded in ones emptied in relation formed on the side of the sole that will be turned outward (and therefore seen during the march). While the small fin (80) supports an upper claw (141) suitable to fit on the upper part on the sole.

Preferably, the platelet, for example of nylon or other synthetic material that presents the qualities desired abrasion resistance and some flexibility, It comes out of molding with its breasts and its claw.

The lugs are advantageously provided with a grab leg (not shown) that enters with them in the holes in the sole but that can be grasped to remove the pin of the sole hole, analogously to the blocks of connection used in the computer connection.

Preferably, recesses are formed on the sides of the footwear to receive the claws (142).

To place the platelets, the user proceeds as indicated above for the previous embodiment, with the unlike that after lining up the teats of a platelet in the housings provided for this purpose on the sole on one side of the shoe, pull the plate using the flexibility of the platelet or the sole, to hook the claw on the sole, on the other side of the footwear (figures 14 and 15).

Proceed similarly for the other shoe or boot.

Figure 15 shows two views of a shoe bass for right foot (PD) equipped with a device according to the invention. It is seen that the lugs are located on the fins of the right side of the shoe turned outward while the Claws are visible from the left side.

It is seen that in these figures that the edges lengths (20a, 20b) of the platelet (20) located under the part forefoot are not parallel to each other and form between them a acute angle. These edges are also oblique with respect to the axis cross section A of the sole (figure 15). In fact, these edges have a curvilinear shape that decreases the incidence on the platelet of frontal shocks that would tend to displace it.

It's the same for footwear left.

The same considerations if they apply to the case of the high shoes (figures 16 to 19).

The invention is not listed to these examples of realization.

Claims (24)

1. City footwear equipped with a separable device to transform city footwear into sports shoes on demand, this device consisting of two platelets (2, 3; 20, 30) designed to be arranged respectively under the front part of the foot and under the heel, each platelet being at a distance from the corresponding end of the sole, having two longitudinal edges (2a, 2b; 20a, 20b; 3a, 3b; 30a, 30b) that extend through the sole, and two edges lateral (2c, 2d; 3c, 3d; 20c, 20d; 30c, 30d) provided with lateral fins (8, 9; 80, 90) that rise against the vertical sides of the sole, these fins and the vertical sides of the sole means that cooperate for the detachable fixing of the platelet to the footwear, characterized in that the platelets (2, 3; 20, 30) are applied in projection on the underside of the footwear, because the two lateral edges of the same platelet are not parallel and have different widths it is, and because the fin (9; 90) adjacent to the wider side edge it rises against the side of the footwear that will be turned outwards and is provided with two lugs (14; 140) to be embedded in corresponding holes of the sole, while the fin (8; 80 ) adjacent to the side edge of smaller width rises against the side of the footwear that will be turned inwards and is provided with a means of attachment to the footwear (11; 141) manually detachable. 2. Footwear according to claim 1, wherein said manually detachable fixing means is a stud (11) to embed in a corresponding hole in the sole. 3. Footwear according to claim 1, wherein said manually detachable fixing means is a claw (141) located at the end of the fin. 4. Footwear according to claim 3, wherein the footwear comprises on the sole or on top of it recesses (142) to receive the claws (141). 5. Footwear according to claim 4, wherein the lugs (11, 15, 16, 140) comprise gripping means manual. 6. Footwear according to one of claims 1 to 5, in which the longitudinal edges (2a, 2b; 20a, 20b; 3a, 3b; 30a, 30b) of a platelet form an acute angle to each other in the range of 20º to 40º. 7. Footwear according to one of claims 1 to 6, in which the longitudinal edges (2a, 2b; 3a, 3b) of a Platelets are rectilinear. 8. Footwear according to one of claims 1 to 6, in which the longitudinal edges (20a, 20b; 30a, 30b) of a Platelets are curvilinear. 9. Footwear according to one of claims 1 and 8, in which the sides (6; 7) of the sole have planes against which the fins (8; 9) of the platelets are applied. 10. Footwear according to one of claims 1 to 9, in which one of the fins (8) and the corresponding side (6) of the sole are designed to make a fixation in a single fixation point while the other fin (9) and the side corresponding (7) of the sole are designed to make a fixation at two points simultaneously. 11. Footwear according to one of claims 1 to 10, in which said holes (20) of the sole cross obliquely the sole and serve for aeration of footwear. 12. Footwear according to one of claims 1 to 6, in which hollow pins (21) are introduced into said holes (20) of the sole and said lugs are stems removable holes (15) suitable to be retained in said pins and extracted on demand. 13. Footwear according to claim 12, in the that the stems or some of the stems (15) comprise a body that crosses the fin and a head (15a) accessible from the outside of the fin and allowing the stem to be removed from the Barrette. 14. Footwear according to one of claims 1 to 13, in which the platelets (2, 3) and their fins (6, 7) are of thin metal 15. Footwear according to one of claims 1 to 14, in which platelets (20; 30) come out of molding material of synthesis with its fins, the nipples and the claws. 16. Device for equipping a city footwear with a view to sports use of the footwear, this device comprising two platelets to be fixed under the footwear, respectively under the front of the foot and under the heel, each platelet being at a distance from the corresponding end of the sole, each platelet presenting two longitudinal edges, and two lateral edges provided with two rising side wings, characterized in that the two lateral edges of the same plate are not parallel and have different widths, and because the adjacent fin (9; 90) at the edge of the platelet of greater width it is provided with two studs (14; 140) to be embedded in corresponding holes of the sole, while the fin (8; 80) adjacent to the lateral edge of the platelet of smaller width is provided with a means of attachment to footwear (11; 141) manually detachable. 17. Device according to claim 16, in which said manually detachable fixing means is a stud (11) to be embedded in a corresponding hole in the sole. 18. Device according to claim 16, in which said manually detachable fixing means is a claw (141) located at the end of the fin. 19. Device according to one of the claims 16 to 18, wherein the lugs (11, 15, 16, 140) They comprise manual gripping means. 20. Device according to one of the claims 16 to 19, wherein the longitudinal edges (2a, 2b; 20a, 20b; 3a, 3b; 30a, 30b) of a platelet form between them an acute angle in the range of 20º to 40º. 21. Device according to one of the claims 16 to 20, wherein the longitudinal edges (2a, 2b; 3a, 3b) of a platelet are rectilinear. 22. Device according to one of the claims 16 to 20, wherein the longitudinal edges (20a, 20b; 30a, 30b) of a platelet are curvilinear. 23. Device according to one of the claims 16 to 22, wherein the platelets (2, 3) and their fins (6, 7) are thin metal. 24. Device according to one of the claims 16 to 22, wherein the platelets (20; 30) leave molding of synthesis material with its fins, the lugs and the claws.