초록 ▼

The shoe has one to four wheels that, for walking, are placed horizontally in specific recesses in the sole, and that, for skating, are pivoted about longitudinal axes and blocked in a vertical position by a single latch, and project downwards relative to the sole, thereby transforming the shoe into

The shoe has one to four wheels that, for walking, are placed horizontally in specific recesses in the sole, and that, for skating, are pivoted about longitudinal axes and blocked in a vertical position by a single latch, and project downwards relative to the sole, thereby transforming the shoe into a roller skate. This invention is of interest to manufacturers and users of shoes and of sports articles.

대표청구항 ▼

1. A convertible shoe designed for walking and for roller-skating in alternation, said shoe comprising a sole in which recesses are provided, roller skate wheels which, for walking, are retracted into a horizontal position inside the recesses in the sole, and, for skating, are deployed under the sol

1. A convertible shoe designed for walking and for roller-skating in alternation, said shoe comprising a sole in which recesses are provided, roller skate wheels which, for walking, are retracted into a horizontal position inside the recesses in the sole, and, for skating, are deployed under the sole into a vertical position, and a mechanism for actuating the wheels making it possible to cause the wheels to go from one position to the other in alternation by lateral pivoting, wherein: in the vertical position for skating, the wheels are disposed on either side of the sole in the manner of a roller skate; andwherein the mechanism for actuating the wheels comprises: two longitudinal rods disposed one on either side of the shoe and fastened to the sole via bearings enabling them to pivot about their own axes, each of these longitudinal rods carrying the wheels that are situated on the same side of the shoe in such a manner as to constrain them to pivot therewith;two pivotally-mounted elements placed at the rear of the shoe, each of which is constrained to pivot with a respective one of the longitudinal rods, and is suitable for pivoting between two limit positions, one of which corresponds to the horizontal position of the wheels for walking, and the other of which corresponds to the vertical position of the wheels for skating; andan angular blocking device for angularly blocking the pivotally-mounted elements, which device, when it is unlocked releases the pivotally-mounted elements and allows them to pivot freely under the effect of gravity or of a force being exerted on the wheels, on the longitudinal rods or on the pivotally-mounted elements, and, when it is locked, blocks the pivotally-mounted elements simultaneously in one of their limit positions. 2. The convertible shoe according to claim 1, wherein the bearings are ball-joint or flexible-connection bearings. 3. The convertible shoe according to claim 1, wherein the longitudinal rods, the bearings, the pivotally-mounted elements and the angular blocking device are placed above the wheels and at the top of the sole. 4. The convertible shoe according to claim 1, wherein it further comprises a rear plate mounted on or incorporated in the sole, which plate has a substantially vertical segment disposed at the rear edge of the sole and serving to support the angular blocking device. 5. The convertible shoe according to claim 1, wherein each of the wheels has a sidewall and a hollow rim; and in that when the wheels are in the horizontal position for walking, a sole element serving to bear against the ground passes through each of the hollow rims, and the sidewalls are raised relative to the ground. 6. The convertible shoe according to claim 1, wherein the recesses have end walls and the convertible shoe further comprises resilient means that make it possible to urge the wheels resiliently to press against the end walls of their respective recesses in the horizontal position for walking. 7. The convertible shoe according to claim 1, wherein the sole of the shoe has a flexure line and between the recesses for receiving the front wheels, the sole has a central zone that is left intact, that connects the deformable zone of the sole situated in front of the flexure line of the shoe to the rear zone of the sole situated behind said flexure line, and that bears some fraction of the weight of the user during walking; and in that the front wheels are placed at least partially to the rear of said flexure line. 8. The convertible shoe according to claim 1, wherein it further comprises a single actuating button or lever that makes it possible to unlock the angular blocking device. 9. The convertible shoe according to claim 1, wherein when the angular blocking device is unlocked, the wheels are driven into an intermediate position by their own weight or by a resilient element; and in that vertical thrust on the wheels, or lateral friction urging the wheels outwards from the shoe causes the wheels-to go respectively into the horizontal position for walking or into the vertical position for skating, and causes the angular blocking device to be locked. 10. The convertible shoe according to claim 1, wherein it further comprises a flexible cover that covers at least one of the following elements: the pivotally-mounted elements, the angular blocking device, the longitudinal rods, and the bearings, in order to protect them from soiling and from impacts. 11. The shoe according to claim 1, wherein it has at least one pair of wheels that are steerable as a function of the inclination of the sole. 12. The shoe according to claim 11, wherein the steerable pair of wheels is the front pair. 13. The shoe according to claim 11, wherein: the shoe comprises a rear plate mounted on or incorporated in the sole, and a front plate secured to the sole;the wheels comprise hubs;at least one of the rear plate and the front plate is pivotally mounted;at least one non-moving plate is secured to the sole in the middle region of the zone of the pair(s) of rollers;on said at least one non-moving plate there is mounted an inclined pin;said at least one inclined pin co-operates with the corresponding moving plate with a view to steering the wheels;the longitudinal rods are extensible; andthe longitudinal rods are connected to the corresponding hubs of the wheels via multidirectional hinges. 14. The shoe according to claim 13, wherein said at least one inclined pin is inclined substantially at 45°. 15. The shoe according to claim 13, wherein the extensible longitudinal rods are telescopic. 16. The shoe according to claim 13, wherein the multidirectional hinges connecting the rods to the hubs of the wheels are of the universal joint type. 17. The shoe according to claim 13, wherein only the front plate is pivotally mounted, and there is only one inclined pin at the front.