Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C17/00—Roller skates; Skate-boards
  • A63C17/12—Roller skates; Skate-boards with driving mechanisms

Definitions

• the present invention which is in the fields of transport, leisure and sports, relates to an autonomous rolling mechanical device, modular, adaptable under each foot of a walker, who, from back to front and from one foot to the other, by the pressure of the weight of its body on the sole of the device, multiplies its speed of forward movement, by actuating, by synchronized motor mechanisms, a kinematic chain made up of associated multiplier gear elements l to each other and carrying driving wheels.
• Document US-A-4 861 054 discloses an improved device for propelling a machine of the skateboard type. The actuation of this board is unrelated to the apparatus according to the invention.
• the rolling mechanical device makes it possible to avoid the various drawbacks of the current state of the art.
• Muscle fatigue is low because the main source of energy comes from the weight of the body; and without long learning, with the muscular energy necessary for the simple walk in walk, the user, in standing position, drives the apparatus and advances with a feeling of flexibility according to the cadence of his steps and the weight transport .
• it can accelerate and multiply its travel speed several times forward or decrease it, or brake automatically until it stops and returns to normal walking and for example climb stairs while keeping the pair of foot devices.
• the risk of falling or accident is reduced and its use is made safer for a large part of the population of any age.
• the device attaches to any shoe without a high heel.
• Space-saving it can be stored in a box or a bag. It works and rolls on any type of road, cycle track, sidewalk, etc., and in any terrain with wheels equipped with a crawler-like tread. Its operation is not very noisy; and since it uses no fuel, it produces no air pollution. It can advantageously complement the range of vehicles circulating in cities and their outskirts.
• the apparatus is normally used in pairs, one under each foot, the present description relates to only one apparatus.
• the device is characterized by a sole on which the shoe is attached by a fastening device.
• the sole rests and is articulated on springs or shock absorbers whose seat is fixed to a chassis.
• each of the gear elements consists, according to the desired multiplication ratios and synchronization needs, of the assembly of a variable number of concentric toothed wheels of different diameters; a gear element meshing with the adjacent gear element according to a pinion-type meshing arrangement of one with a toothed wheel of the other.
• the pinions of the gear elements in direct contact with the racks are mounted on a freewheel of the one-way type.
• Additional rod-crank type systems consisting of a rod articulated on one side with a rack and on the other side with a disc linked to one of the auxiliary gear elements, which reinforce the action of the racks, can be added depending on the model. All of the gear elements and the chassis can be protected by a covering.
• the mechanism automatically brakes and stops. Once stopped, with a ratchet button, the user can block the operation of the mechanism and the rotation of the wheels.
• the device can be modified at any point and in particular on the following points:
• - Sole it can be curved and include one or more counter-soles, or be the crossed assembly of two flat parts.
• the shoe can be attached directly to the sole by a strap device, be specially made to snap onto the device, or be an integral part of the device.
• the energy of the lighting system attached to the sole can be supplied by battery, dynamo, or any other process.
• - Kinematic chain It generally consists of two symmetrical side chains of gear elements, the number of which varies depending on the model; it is most often between 5 and 13 for each side chain.
• the wheels in contact with the ground can be located between the two lateral chains or on each side at the edge of the sole.
• gear elements On the same gear element, the number of gears and their diameter can vary. Freewheels can be incorporated to take account of variations in angular speed. The ratios between toothed wheels and pinions of two adjacent gear elements are adjustable.
• - Shock absorbers They are spring and / or fluid. Their number and location may vary.
• - Wheels in contact with the ground They are of variable diameter and according to the models, their number varies from 2 to 8 or more, positioned on a single central line or on several parallel lines. Their rims can receive an individual tire made up of a flexible material or a tread of the caterpillar type connecting several wheels together, in particular the rear wheels to the intermediate wheels. Generally motor, they can also be non-motor.
• the present invention relates to an autonomous rolling mechanical device adaptable under each foot of a walker to multiply its speed of forward movement, characterized in that it comprises a chassis to which the axes of 5 to 13 or more gear elements are linked ( A, B, C, D, ...
• each of the elements comprises one or more concentric toothed wheels which mesh with those of the neighboring element so as to transmit and multiply from one to the other the rotational movement distributed by means of a motor mechanism composed of 3 to 12 racks, which, descending, drive the chain of gear elements, each by a pinion mounted on a freewheel of one-way type, while other racks, the number of e 2 to 10 or more drive it up, following the reciprocating movement of a sole in two crossed parts which rests on springs / shock absorbers and supports, attached by a strap device, the shoe and the foot of the walker by which exerts the pressure of the weight of his body from back to front and from one foot to the other.
• it is equipped with a double chain of gear elements (A-Z), each being arranged
• - racks actuate each chain of gear elements via auxiliary gear elements ( ⁇ ) or systems of two adjoining auxiliary gear elements ( ⁇ ) and ( ⁇ ) each consisting of one or more concentric toothed wheels of which at least one is mounted on a freewheel of the one-way type.
• a rod-crank system composed of a rod articulated on one side at the top of the racks and on the other side on a disc ( ⁇ 2RL) centered on the auxiliary gear element ( ⁇ ),
• the chain of gear elements (AZ) is sandwiched between a sole formed from a single curved piece under which are fixed racks which actuate the chain gear elements (AZ) going down and a counter-sole on which are fixed the racks which actuate them going up,
• each front wheel in contact with the ground is independent on its axis from the preceding gear elements and is not connected to the kinematic chain
• the sole is equipped with an electric lighting device at front and rear, the frame of which turns under the sole and slides to adjust to the user's feet
• the wheels in contact with the ground on the same line are all, or at least two, equipped with an all-terrain tread of the track type
• the shoe is specific and integrated into the device and its sole while allowing movement of the foot from back to front
• shock absorbers are fluid.
• FIG. 1 shows an elevation without dressing of a model of the invention, with, from the rear drive wheel to the front wheel, a lateral kinematic chain, composed of 4 +1 gear elements, actuated by 3 sets of 2 auxiliary gear elements and 5 racks under a sole in two crossed flat parts.
• - Figure 2 shows an elevation identical to the drawing of Figure 1 with the addition of rod-crank type systems.
• FIG. 3 shows an elevation similar to that of Figure 2, but whose lateral kinematic chain is composed of 6 + 1 gear elements actuated by 3 sets of 2 auxiliary gear elements and 7 racks.
• - Figure 4 shows an elevation similar to Figure 3, the bearing point of the heel is moved forward of a gear element; the lateral kinematic chain, composed of 6 + 1 gear elements, is actuated by 3 sets of 2 auxiliary gear elements and 5 racks.
• the spring / shock absorber systems incorporate racks at the rear and at the front.
• FIG 5 shows an elevation of a different model of the invention.
• the lateral kinematic chain, composed of 6 + 1 gear elements is actuated by 3 sets of 1 or 2 auxiliary gear elements and 7 curved racks fixed under the sole in two crossed flat parts.
• FIG. 6 shows an elevation of a different model of the invention.
• the lateral kinematic chain composed of 12 +1 gear elements carrying 3 wheels in contact with the ground, is actuated by 16 curved racks fixed under the sole in two flat parts.
• - Figure 7 shows the elevation of another model of the invention said
• FIG. 9 shows a top view of a sole in two flat parts with the usual position of the springs and / or shock absorbers, the various auxiliary gear elements and two lateral kinematic chains.
• FIG. 10 shows a top view of a curved sole with a counter sole and the usual position of the springs and / or shock absorbers, racks and different gear elements of two lateral kinematic chains.
• - Figures 11 to 16 of the board 10 without being limiting, represent some positions under the sole of the wheels in contact with the ground and springs or shock absorbers.
• the invention comprises a device (1) with straps for holding the user's foot and shoe on a sole (3) tilting around the axis (4) connected to a chassis.
• the sole composed of two crossed flat parts which extend beyond the axis (4) is equipped at its two ends with a lighting device (2) (white at the front and red at the rear) the framework of which turns under the sole ' (3) and slides to allow the length of the sole to be adjusted to the dimension of the user's shoe.
• Spring shock absorbers (5) are positioned under each part of the sole. They are fixed to the chassis (9) in the lower part and are articulated and slide under the sole (3) in the upper part in order to be able to compress and decompress freely during its tilting.
• the gear element (A) consists of the toothed wheels (A1) (A2) and the drive wheel in contact with the ground (AO); the element (B) consists of toothed wheels (B1) (B2) (B3) (B4RL); the element (C) consists of toothed wheels (C1) (C2) (C3) (C4RL); the element (D) consists of toothed wheels (D1) (D2); the element (Z) consists of the toothed wheel (Zl) and the wheel in contact with the ground (ZORL).
• the gear element (A) by its toothed wheel (Al) driving the toothed wheel (Bl), transmits its rotational movement to (B) which amplifies it and transmits it to the gear element (C) which amplifies it and transmits it to the gear element (D), which amplifies it by its toothed wheel (Dl) driving the pinion (Zl) and transmits the multiplied rotational movement to the gear element (Z) and therefore to the front wheel (ZORL) in contact with the ground.
• the motor (term designating the motor mechanisms) which actuates the gearing elements and the driving wheels which compose the kinematic chain includes the tilting sole (3) and the springs / shock absorbers (5), the racks (6) and (7) and the auxiliary gear elements ( ⁇ ) and ( ⁇ ).
• Each rack (6) rotates an auxiliary gear element ( ⁇ ) whose pinion ( ⁇ lRL) leads the pinion ( ⁇ 2RL) of a second auxiliary gear element ( ⁇ ) which transmits this rotational movement to three elements of the kinematic chain (AZ) by its toothed wheels ( ⁇ l) ( ⁇ 3), while the curved racks (7), the center of which is the axis (4) of the sole, directly reinforce the rotation of the kinematic chain by operating two of the central gear elements.
• the damping spring (5) of the rear is compressed and that of the front is decompresses and the racks (6) located under the rear part of the sole rotate the corresponding auxiliary gear elements ( ⁇ ) and ( ⁇ ); one of the elements ( ⁇ ) then drives by ( ⁇ l) ( ⁇ 3), respectively the toothed wheels (A2) (A1) of (A) transmitting a first speed to the wheels (AO) and (ZORL), while another element ( ⁇ ) drives by ( ⁇ 1) the toothed wheel (B2) of (B) transmitting a second speed to the driving wheels (AO) and (ZORL); at the same time, going up on the pinion (C4RL), the curved rack (7), located beyond the axis (4) on the same part of the sole, drives the element (C) and reinforces these of them first speeds.
• a second step descending under the pressure of the body weight of the user exerted on the tip of the foot, the damping spring (5) of the front is compressed and that of the rear is decompressed and the racks (6) of the front part of the sole rotate the corresponding auxiliary gear elements ( ⁇ ) and ( ⁇ ) which drive by ( ⁇ 1) the pinion (C3) of (C) which transmits through the kinematic chain (AZ) a third gear with the wheels in contact with the ground (AO) and (ZORL); at the same time, going up on the pinion (B4RL), the rack (7), located beyond the axis (4) on the same part of the sole, drives the element (B) and reinforces this third speed.
• One step with the device that is to say a simple back pressure followed by a front pressure can already cover several meters.
• the power of this engine increases further with the increase in the rate of alternating pressures from back to front and from one foot to the other of the weight of the walker's body on the sole, driving the kinematic chain (AZ), multiplying all the more the speed of rotation of its wheels in contact with the ground (AO) and (ZORL), and therefore the speed of movement in front of the user.
• the wheel (ZORL) is mounted on a freewheel of the one-way type to avoid that, when walking, the extended foot does not slip back when passing from one foot to the other.
• a manual locking ratchet button (8) at the front wheel (ZORL) activates a needle which passes through the element (D) and the chassis (9) and hinders the mechanism, stopping its operation. Notes: The position of the elements (D) and (Z) at the end of the kinematic chain makes it easy to replace them with elements whose gears have a different ratio and to regulate the speed of rotation of the wheel (ZORL). The pinion (Zl) can also be removed, which makes the wheel (ZORL) independent of the motor mechanism.
• the number of wheels in contact with the ground can be reduced to 3, or to 2 in line with a suitable shoe and possibly the modification of the position of the springs and / or shock absorbers.
• a rod (10) articulated at the head of the rack (6) is articulated at its other end with a disc ( ⁇ 4RL) of the auxiliary gear element ( ⁇ ) and transforms the reciprocating movement of the racks (6) into rotary movement elements ( ⁇ ).
• the length of the rod, the diameter of the disc and the location of the joints can be calculated so that with the speed acquired, the elements gears ( ⁇ ) make a full turn from the start of the rear pressure until the end of the front pressure of the body weight on the sole.
• the illustrated model takes up the characteristics and remarks of FIGS. 1 and 2 with an increase in the number of elements of each lateral kinematic chain composed of 6 + 1 gear elements, of (A) drive wheel carrier (AO) to (Z) front wheel carrier (ZORL) via (B), (C), (D), (E), (F) consisting of concentric toothed wheels of corresponding diameters to mesh one after the other and mounted on bearings around their respective parallel axes fixed in the chassis (9).
• the gear element (A) consists of the toothed wheels (A1) (A2) and the drive wheel in contact with the ground (AO); the element (B) consists of toothed wheels (B1) (B2) (B3) (B4RL); the element (C) consists of toothed wheels (C1) (C2) (C3RL); the element (D) consists of toothed wheels (D1) (D2) (D3RL); the element (E) consists of toothed wheels (E1) (E2) (E3RL); the element (F) consists of toothed wheels (F1) (F2); the element (Z) consists of the toothed wheel (Zl) and the wheel in contact with the ground (ZORL).
• the rotational movement is transmitted from one gear element to another and is amplified from the element (A) and its driving wheel (AO) to (Z) which transmits the movement of rotation multiplied at the front wheel (ZORL) in contact with the ground.
• the motor which actuates the gear elements and the driving wheels which compose the kinematic chain includes the tilting sole, the springs / shock absorbers (5), the racks (6) and (7), the auxiliary gear elements ( ⁇ ) and ( ⁇ ) and the crank-rod systems (10) - ( ⁇ 4RL).
• Each rack (6) rotates an auxiliary gear element ( ⁇ ) whose pinion ( ⁇ lRL) leads the pinion ( ⁇ 2RL) of an element ( ⁇ ) which transmits this rotational movement to the three elements (A), ( B), (E), by its cogwheels ( ⁇ l) ( ⁇ 3) respectively on (A2) (Al) and (Bl) (B3) and by ( ⁇ 1) on (E2), while four curved racks (7 ) directly reinforce the rotation of the kinematic chain by actuating its four central gear elements.
• (B), (C), (D), (E) respectively in (B4RL), (C3RL), (D3RL) and (E3RL). This faster model than the previous ones makes it possible to lower the height from the ground to the sole.
• the springs or shock absorbers (5) are not located under the longitudinal axis of the sole but on both sides and d 'other and integrated inside the rack mechanisms (6).
• the rear pressure point of the body weight is on the axis of the gear element (B) instead of (A).
• the connecting rod-crank systems (10) are completed by guide rods in the lower part.
• This mechanism with lateral springs or shock absorbers makes it easy to have a double kinematic chain with two driving wheels (AO) and (ZORL) aligned in the longitudinal axis under the sole.
• AO driving wheels
• ZORL Zero-ORL
• each side kinematic chain of this model is composed of 6 + 1 gear elements, from (A) carrier of the driving wheel (AO) to (Z) carrier of the front wheel (ZORL) in passing through (B), (C), (D), (E), (F), made up of toothed wheels of corresponding diameters to mesh one after the other and mounted on bearings around their respective axes parallel fixed in the frame (9).
• the gear element (A) consists of the toothed wheels (A1) (A2) (A3) and the drive wheel in contact with the ground (AO); the element (B) consists of toothed wheels (B1) (B2) (B3) (B4); the element (C) consists of toothed wheels (C1) (C2) (C3); the element (D) consists of toothed wheels (D1) (D2) (D3) (D4RL); the element (E) consists of toothed wheels (E1) (E2) (E3) (E4RL); the element (F) consists of toothed wheels (F1) (F2); the element (Z) consists of the toothed wheel (Zl) and the wheel in contact with the ground (ZORL).
• the rotational movement is transmitted from one gear element to another and is amplified from the element (A) and its driving wheel (AO) to (Z) which transmits the movement of rotation multiplied at the front wheel (ZORL) in contact with the ground.
• the motor which actuates the gear elements which make up the kinematic chain with its drive wheels comprises the tilting sole (3), the racks (6) and (7), the shock-absorbing springs (5), the auxiliary gear elements ( ⁇ ) and ( ⁇ ) and the crank rod system (10- ⁇ 4RL).
• Each of the three racks (6) rotates an auxiliary gear element ( ⁇ ) whose pinion ( ⁇ lRL) leads the pinion ( ⁇ 2RL) of an element ( ⁇ ) reinforced by the rod-crank system (10- ⁇ 2RL) which transmits this rotational movement to the elements (A), (B), (E), by its gear wheels ( ⁇ l) ( ⁇ 3) respectively on (A3) (A1) and by ( ⁇ 1) on (B2) and to the front by ( ⁇ l) on (E2), while 2 curved racks (7) directly reinforce the rotation of the kinematic chain by actuating its central gear elements (D) and (E) respectively in (D4RL) and ( E4RL).
• each lateral kinematic chain is composed of 6 + 1 gear elements, from (A) carrier of the driving wheel (A0) up to (Z ) front wheel carrier (ZORL) in passing through (B), (C), (D), (E), (F), made up of concentric toothed wheels of corresponding diameters to mesh one after the other and mounted on bearings around their axes respective parallel fixed in the frame (9).
• the gear element (A) consists of the toothed wheels (A1) (A2) (A3RL) and the drive wheel in contact with the ground (AO);
• the element (B) consists of toothed wheels (B 1) (B2) (B3) (B4RL);
• the element (C) consists of toothed wheels (C1) (C2) (C3) (C4RL);
• the element (D) consists of toothed wheels (D1) (D2) (D3);
• the element (E) consists of toothed wheels (E1) (E2) (E3);
• the element (F) consists of toothed wheels (F1) (F2) (F3RL);
• the element (Z) consists of the toothed wheel (Zl) and the wheel in contact with the ground (ZORL).
• the rotational movement is transmitted from one gear element to another and is amplified from the element (A) and its driving wheel (AO) to (Z) which transmits the movement of rotation multiplied at the front wheel (ZORL) in contact with the ground.
• the motor which actuates the elements which compose the kinematic chain and the driving wheels includes the tilting sole (3), the springs / shock absorbers (5) the curved racks (6) and (7), the auxiliary gear elements ( ⁇ ) and ( ⁇ ).
• the double rack (6) located at the rear end first rotates by the pinion ( ⁇ lRL), an auxiliary gear element ( ⁇ ) whose pinion ( ⁇ 2) directly drives the toothed wheel (Al) of the 'gear element (A) which it still drives by its action on the pinion (A3RL).
• the neighboring rack (6) located at the rear set back from the previous one rotates the pinion ( ⁇ lRL) of an auxiliary gear element ( ⁇ ) which drives the gear element through the pinion (B4RL) B).
• the double rack (6) from the front drives the toothed wheel (F) by the pinion (F3RL) on one side and an auxiliary gear ( ⁇ ) on the other side whose pinion ( ⁇ lRL) drives by ( ⁇ 2RL ) the auxiliary gear element ( ⁇ ) whose pinion ( ⁇ l) actuates the element (E) by its pinion (E3), while 2 curved racks (7) reinforce the rotation of the kinematic chain by actuating one side the gear element (C) in (C4RL) and through the auxiliary element ( ⁇ 3RL) the element (E) by its pinion (E3).
• this model works, without the intermediary of auxiliary gears, with 16 curved racks centered on the axis (4). It is particularly from this model and in the models according to FIGS. 7 and 8 which have intermediate wheels in contact with the ground, that all-terrain treads of the chenille type making it possible to move on different types of soil can equip the wheels, in particular going only from the rear wheels to the intermediate wheels.
• Each lateral kinematic chain is composed of 12 + 1 gear elements, from (A) carrier of the driving wheel (AO) to (Z) carrier of the front wheel (ZORL), passing through (B), (C), (D), (E), (F), (G) drive wheel carrier (GO), (H), (I), (J), (K) and (L ) made up of concentric toothed wheels of corresponding diameters to mesh one after the other and mounted on bearings around their respective parallel axes fixed in the chassis (9).
• the gear element (A) consists of the toothed wheels (A1) (A2RL) and the drive wheel in contact with the ground (AO).
• the element (B) consists of toothed wheels (B1) (B2) (B3RL); the element (C) consists of toothed wheels (C1) (C2) (C3RL); the element (D) consists of toothed wheels (D1) (D2) (D3RL); the element (E) consists of toothed wheels (E1) (E2) (E3RL); the element (F) consists of toothed wheels (F1) (F2);
• the gear element (G) consists of the toothed wheels (G1) (G2) and the drive wheel in contact with the ground (GO); the element (H) consists of toothed wheels (H1) (H2) (H3RL); the element (I) consists of toothed wheels (I1) (I2) (I3RL); the element (J) consists of toothed wheels (J1) (J2) (J3RL); the element (K) consists of toothed wheels (K1) (K2) (K3RL); the element (L) consists of toothed wheels (L1) (L
• the rotational movement is transmitted from one gear element to another and is amplified from the element (A) and its driving wheel (AO) to (Z) which transmits the movement of rotation multiplied at the front wheel (ZORL) via the intermediate drive wheel (GO).
• the motor which actuates the elements which make up the kinematic chain and the drive wheels comprises the tilting sole (3), the springs or dampers (5) and the double curved racks (6) and (7).
• the shock-absorbing spring (5) at the rear is compressed and that at the front is decompressed and the double racks are curved ( 6) located under the rear part of the sole, rotate the gear elements (A), (B), (C), (D), respectively by their action on the pinions (A2RL), (B3RL), (C3RL), (D3RL); at the same time, going up, the double curved racks (7), located beyond. of the axis (4) on the same part of the sole, drive the elements (H), (I), (J), (K), by the pinions (H3RL), (I3RL), (J3RL), ( K3RL), strengthening the rotational movement.
• a second step descending under the pressure of the body weight of the user acting on the tip of the foot, the shock absorbing spring (5) of the front is compressed and that of the rear is decompressed, and the curved double racks (6) located under the front part of the sole rotate the gear elements (I), (J), (K), (L), respectively by the pinions (I3RL), (J3RL), (K3RL), (L3RL); at the same time, going up, the double curved racks (7), located beyond the axis (4) on the same part of the sole, drive the elements (B), (C), (D), (E), by the pinions (B3RL), (C3RL), (D3RL), (E3RL), reinforcing the transmission of the rotational movement through the kinematic chain (AZ) towards the wheels in contact with the ground (AO), (GO) and (ZORL).
• this one known as a “sandwich”
• the counter sole (11) is retained at the sole by sliding sleeves in the cases constituted by the double racks (6).
• Each lateral kinematic chain is composed of 8 + 1 gear elements, from (A) carrier of the driving wheel (AO) to (Z) carrier of the front wheel (ZORL), via (B), ( C), (D), (E) carrier of the driving wheel (E0), (F), (G), (H), made up of concentric toothed wheels of corresponding diameters to mesh one after the other and mounted on bearings around their respective parallel axes fixed in the chassis (9).
• the gear element (A) consists of the toothed wheels (A1) (A2) (A3RL) and the drive wheel in contact with the ground (AO);
• the element (B) consists of toothed wheels (B1) (B2) (B3) (B4) (B5RL);
• the element (C) consists of toothed wheels (C1) (C2) (C3) (C4) (C5RL);
• the element (D) consists of toothed wheels (D1) (D2) (D3) (D4RL);
• the element (E) consists of the toothed wheels (E1) (E2) (E3) (E4) (E5RL) and the driving wheel in contact with the ground (E0);
• the element (F) consists of toothed wheels (F1) (F2) (F3) (F4) (F5RL);
• the element (G) consists of toothed wheels (G1) (G2) (G3RL);
• the element (H) consists of toothed wheels (H1) (H2) (H3RL);
• the rotational movement is transmitted from one gear element to another and is amplified from the element (A) and its driving wheel (AO) to (Z) which transmits the movement of rotation multiplied at the front wheel (ZORL) via the intermediate drive wheel (E0).
• the motor actuating the gear elements which make up the kinematic chain and the drive wheels comprises the sole (3) and counter sole (11) assembly, the double racks (6) and (7) and the springs / shock absorbers (5). .
• the double racks (6) located under the sole actuate the gear elements (A) to (H) by their pinions mounted on a freewheel of the one-way type while that at the same time, going up, the double racks (7), actuate the same gear elements at diametrically opposite points of the same freewheels of the one-way type.
• the rotation of the chain kinematics and driving wheels is carried out throughout the duration of the step, the pressure of the weight of the walker's body being exerted regularly from the rear to the front.
• the springs (5) bring the sole and the counter sole to their maximum spacing, the device is ready for the next step.
• the position of the last 2 elements ⁇ (H) and (Z) ⁇ at the end of kinematic chain makes it possible to replace them by others according to the gear ratio sought and regulate the speed of rotation of the wheel (ZORL).
• the pinion (Zl) can also be removed, which makes the wheel (ZORL) independent of the motor mechanism.
• the number of wheels in contact with the ground can be reduced to 3 in line with a shoe and its suitable binding, and a possible modification of the position of the springs or shock absorbers.
• each kinematic chain (A, B, C, D, E, F, G, H, I, J, K, L + Z) is composed of 12 + 1 gear elements carrying 4 driving wheels (AO), (E0) (10), and (ZORL).
• AO driving wheels
• E0 E0
• ZORL ZORL
• Figure 9 schematically shows a top view of a sole (3) composed of two parts crossed on the axis (4) which show the usual location of springs or dampers (5) and the relative position in the chassis (9) different gear elements of two lateral kinematic chains (A, B, C, D, E, F, ... Z) and auxiliary gears ( ⁇ ) ( ⁇ ).
• FIG. 10 schematically shows a top view of a sole (3) composed of a single curved part and its counter-sole (11) in the “sandwich” type model and represents the usual locations of the springs or shock absorbers ( 5) and the relative position in the chassis (9) of the different gear elements of two lateral kinematic chains (A, B, C, D, E, F, G, H, ... Z) and the racks (6 ) and (7).
• Plate 10 without being exhaustive, presents, from FIGS. 11 to 16, some examples of the position of the wheels in contact with the ground, on a single line or on several parallel lines, and shows that with some modifications, in particular in the number and the position of the springs and / or shock absorbers (5) in relation to the gear elements, all models can operate on 2 wheels, (A0) and (ZORL), or 3, or 4, and only the most kinematic chains long can be moved by 5, 6, 7, 8 or more wheels.
• the variants of this polymorphic invention are numerous and allow, depending on the devices adopted, to reach and exceed a multiplier of 7 compared to the speed of normal walking which is between 2 and 6 km / h, or to reach effortlessly speeds of the order of 14 to 42 km / h and more.
• the height of the axis of the sole on the ground generally varies from 50mm to
• the length of the device is most often between 260mm and 320mm.
• Sports or competition models can be fitted with gear elements and drive wheels of larger diameters and longer racks, thanks to which the speed can reach and exceed 1 OOkm / hour.
• Children's models can allow them to walk at an adult's normal walking speed.
• the invention is particularly suitable for local trips in cities and their outskirts for the needs of individual transport, and also for sport, entertainment and leisure.
• the device object of the invention being mainly mechanical, its industrialization in large series poses no particular problem.

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