EP0367645A1 - Self-propelled engine, especially motorized roller skates - Google Patents

Self-propelled engine, especially motorized roller skates Download PDF

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Publication number
EP0367645A1
EP0367645A1 EP89402799A EP89402799A EP0367645A1 EP 0367645 A1 EP0367645 A1 EP 0367645A1 EP 89402799 A EP89402799 A EP 89402799A EP 89402799 A EP89402799 A EP 89402799A EP 0367645 A1 EP0367645 A1 EP 0367645A1
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EP
European Patent Office
Prior art keywords
machine according
track
wheels
hand
steering
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP89402799A
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German (de)
French (fr)
Inventor
Gérard René Battel
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Individual
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Individual
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Publication date
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Publication of EP0367645A1 publication Critical patent/EP0367645A1/en
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    • 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
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/08—Skis or snowboards motor-driven

Definitions

  • the present invention relates to a self-propelled machine, for example roller skates, skates which can be used on skis for easy hill climbing, etc.
  • Self-propelled skates are known, but these machines are not remotely controlled, are not autonomous for long periods of time, and are not, in general, equipped with a suspension, a braking system and a steering system. In addition, existing machines do not have a speed variator for the wheels or driven tracks.
  • the power source for driving the machine is a heat engine not mounted on the machine itself and remotely controlled by the same means and devices as the propulsion and braking systems mounted on the machine for example. .
  • the self-propelled vehicle comprises at least one unit provided with a propulsion system characterized in that at least one unit of said vehicle optionally comprises at least one of the following systems: braking system ; suspension system; steering system, these systems (or system) being remote-controlled, means of remote control being furthermore provided which also control a power generation and storage system. It comprises at least two units arranged in parallel, each of these units being equipped with at least one propulsion system mounted on a support and holding structure, said remote control means acting simultaneously on the systems mounted on said units, as well as on said power generation and storage system which is mounted independently of said units.
  • Said remote control means are connected to said power generation and storage system mounted independently of said units, on the one hand, and to said systems mounted on said units, on the other hand.
  • These means being, essentially an electronic regulation device, electric, hydraulic or equivalent; overload and overpressure unlocking devices and a manually operated control and command transmitter unit.
  • Said structure comprises a part for supporting the load to be transported and a part for maintaining at least one of the propulsion, braking, suspension and steering systems.
  • the only power generation and storage system mounted independently of said units comprises, in series, a heat engine, an electric, pneumatic, hydraulic or equivalent power generator, a regulation device and a power storage tank.
  • Said control means are connected to safety devices for simultaneously actuating or suppressing the braking systems optionally mounted on each of said units, said command giving priority to braking instead of acceleration.
  • the machine according to the invention for example roller skates, comprises on each of the aforementioned units four wheels mounted in pairs on a front chassis and a rear chassis of said structure respectively, said wheels rear part of the propulsion system (i) being driven at speeds selected by means of a speed variator actuated by a motor, via a device (a box) of angle transmission, a braking system (ii ) acting on at least said driving wheels, being provided as well as a steering system (iii) and a suspension system (iv) comprising front wheel suspension devices and rear wheel suspension devices.
  • the front chassis is connected to the rear chassis via said motor and said variable speed drive.
  • variable speed drive is a gearbox with pinions controlled by jacks from said control system, connected to the rear wheels via the angle gearbox and a drive by cardan or by a flexible hose transmitting the rotary movement in one direction.
  • the braking system comprises discs mounted at least on the drive wheels and brake linings, the relative movement between said discs and said linings for the application of the latter by mechanical, hydraulic, electromagnetic or equivalent means, being remotely controlled from of said control system.
  • Said safety devices include a contactor which removes the braking in order to control the position of support on the ground.
  • two shock absorbers are articulated, on the one hand, on the ends of the triangles of the front chassis and on the other hand, by axes on the upper wall (between the front wall and the rear wall) of the front chassis, a stabilizer bar connected laterally to two rods being supported by the front wall of the front chassis.
  • the rear wheels are suspended by shock absorbers, connected on the one hand to the parallelograms and to the plate forming part of the rear chassis, a stabilizing bar being carried by two links on said parallelograms to allow articulation thereof, means being in further provided for allowing the shortening or lengthening of the lower part of said parallelograms.
  • the steering system comprises a sole that can pivot by the action of the load carried around the axes arranged one behind the other parallel to the longitudinal axis of a unit of the machine against a device elastic return, said sole being connected to the kinematic chain allowing the angular displacement (relative to the longitudinal axis of the machine) of the front wheels.
  • Said sole comprises a lower (steering) plate and an upper plate on which the load (for example a foot) is supported, means provided with an elastic return device being provided for locking said load.
  • Said kinematic chain essentially comprises a deformable parallelogram constituted by two rods articulated on the one hand on a sole which is rigidly connected to said plate so that said rods perform substantially vertical movements during the pivoting of said plate around substantially parallel axes to the longitudinal axis of the unit and on the other hand, on a steering "T" which can pivot around an axis mounted on the rear wall of the front chassis and of the rods and ball joints allowing the transformation of the vertical movement of said rods due to the pivoting of said plate in a horizontal angular movement of the front wheels of the unit, means being provided for (i) regulating the sensitivity of the steering and (ii) the magnitude of the steering angle.
  • Said means are (i) holes made in said rods arranged vertically and in the direction "T", and (ii) members for regulating the length of the rods arranged horizontally.
  • a protective body is fixedly mounted on the support and holding structure of the unit.
  • the machine according to the invention comprises a propulsion system mounted on at least one unit, which itself is fixed on a ski, at least partially, above an opening made in that -this.
  • Each unit comprises a drive track advancing in one direction only, said track essentially comprising a flexible track, a raceway, a tensioner roller and a drive device produced in the form of a pulley or a pinion which can be lowered through the hole in the ski until said flexible track comes into contact with the ground, means being provided for raising and lowering the track.
  • Said means are essentially constituted by a guide articulated on the one hand, on the drive axis of the track itself and on the other hand, on the shaft by means of a friction member, this shaft being driven by the motor, via a speed variation box and an angle gearbox, the rotary movement lowering and lifting being controlled by a lever fixed on a rod hinged to a link and angle levers acting on studs integral with the casing of the track.
  • Elastic means are fixed on the casings of the track on the one hand, and on the skis on the other hand; these means making it possible to facilitate the lowering of said track and obtaining very good adhesion between the track itself and the ground; track locking devices being further provided.
  • a cover casing protects the track and its drive.
  • each unit is a double track driven in one direction by toothed wheels, these toothed wheels being mounted on a rigid front assembly consisting essentially of parallelograms, rigid rods and a rigid rear assembly consisting essentially in a lower parallelogram provided with means for adjusting its length, an upper parallelogram, and two supports, means for driving the rear toothed wheels being mounted between said rigid front and rear assemblies.
  • a unit of said machine can be a roller skate (1) according to the invention, comprising, a sole (2) for the support of the shoe, this sole being provided with four casters, namely two front casters (3) and two rear castors (4).
  • the sole (2) consists of a lower steering plate (5) and an upper plate (6), on which the foot will rest and whose free surface is advantageously non-slip.
  • the two front casters (3) are connected by a front chassis unit (7), itself located at the front of a motor (8), which transmits the movement to a gearbox (9) , located at the rear of the engine (8) and cooperating with an angle gearbox (10) of the rear chassis (11), connecting the two rear rollers (4).
  • the steering plate (5) is folded once square upwards along its two front and rear edges respectively (5a) and (5b), and twice square upwards, then inwards in (5c) on its inner longitudinal edge if we consider the position of the user's shoe.
  • latches (13a) to (13c) comprise, in their part located under the plate (5), orifices for the passage of an elongated plate (14), parallel to said plate (5) and arranged along the longitudinal axis of it.
  • the plate (14), folded back at its rear part at (14a) is held by three guide elements, front, central and rear, respectively (15a), (15b) and (15c), which are formed by projections directed towards the bottom, carried by the underside of the plate (5).
  • the plate or axis (14) passes through the guide elements, central and rear, respectively (14b) and (14c), and it penetrates, by its front end, into a cavity of the guide element (15a).
  • the steering plate (5) is held at the front on the front chassis unit (7) by a pinned pin (17). To this end, the plate (5) has a downward projection (18), and the front chassis block (7), an upward projection (19), the two projections (18) and (19) coming in bearing against each other and being connected by the axis (17) parallel to the longitudinal axis of the roller skate.
  • the plate (5) is, in the same way, connected to the casing of the engine block (8).
  • a bracket (20) fixed to the latter by a bolt (21) and cooperating with a projection (22) directed downwards, carried by the plate (5), an axis (23 ) connecting the bracket (20) and the projection (22).
  • the light (16c) allows the projection (22) to pass through the plate (14).
  • the plate (5) is held on the gearbox (9).
  • a support plate (24) is fixed by bolts (25) to the rear of said gearbox, and the plate (5) has a downward projection (26) and being connected to the plate -support (24) by an axis (27) locked by a pin.
  • a spring (27a) ( Figure 3) forces the plate (5) to return to its central position.
  • a protective body (28) is provided, which comprises a central plate (28a), parallel to the plate (14) and disposed below the latter.
  • Said plate (28a) is bordered by two inclined longitudinal wings (28b), opening towards the outside, which are extended externally by extensions (28c) overhanging the rollers (3) and (4), and folded down along rounded zones (28d) to form lateral protections (28e), arriving approximately at the level of the hubs of the rollers (3) and (4).
  • the plate (28a) comprises, from front to rear, lights respectively (29a), (29b), (29c) and (29d).
  • the lights (29a), (29c) and (29d) allow the passage of the three connecting elements of the steering plate (5), respectively to the front chassis unit (7), to the motor housing (8) and to the gearbox (9), as described above.
  • the plate (28a) is also fixed to the motor housing (8) by a central bracket (30) bolted to said housing.
  • the motor (8) transmits the movement to the gearbox (9) which has a removable wall (9a) to allow access to it if necessary.
  • the gearbox (9) is fixed to the motor housing (8) by bolts (31).
  • the drive shaft is extended by a primary shaft (32), supported at each end of the box (9) by front and rear bearings, respectively (33) and (34). On the primary shaft (32), freely rotate four pinions (35) to (38), from front to rear.
  • a secondary shaft (39) is also arranged in the gearbox (9) parallel to the primary shaft and below it. It is held by bearings (40), (41), at each of its ends, and it receives a set of four pinions respectively (42), (43), (44) and (45), cooperating respectively with the pinions (35), (36), (37) and (38).
  • Two control rods respectively (46) and (47) ( Figure 2) actuate synchro rings, respectively (48) and (49), each having three positions and arranged, for the first, between the pinions (35) and ( 36), and, for the second, between the pinions (37) and (38).
  • the synchro rings (48) and (49) control jacks respectively (50) and (51) ( Figure 3), also having three positions corresponding to those of the synchro rings.
  • the speed change takes place as follows: the ring (48) being in the forward position in the direction of travel, the first gear is engaged and maintained by the jack (50) controlled by the rod (46). In its intermediate position, the jack (50) maintains the neutral position. When the jack (50) is in the second position, the second gear is engaged, the ring (48) having slid on the spline shaft (32) and having made the pinion (36) integral with said shaft (32).
  • the cylinder (50) When the cylinder (50) is no longer stressed by the first gear, that is to say that it has returned to mid-point or neutral, the cylinder (51) is no longer self-locked and it allows the passage of the third gear via the control rod (47), sliding on the spline shaft (32), the synchro ring (49) towards the pinion (37), on which it is locked .
  • the fourth speed is, in turn, controlled by the jack (51), causing the control rod (47) to slide the synchro ring (49) on said shaft (32) in the direction of the pinion (38), the securely locking on the shaft (32).
  • the first execution phase will return to neutral (central point).
  • the cylinder (50) is controlled by the switch back to neutral position; only the jack (51) can exercise the advancement of the synchro ring (49) towards the pinion (37) to engage the third speed. It should not be forgotten that the skater has one skate on each foot and only one command in the hand, and when there is a change of speed, the execution will be done on the right skate and the left skate .
  • the bevel gearbox (10) is held on the gearbox (9) by bolts not shown, distributed in a circular fashion around the shaft (39) and a centering shoulder (also not shown) holding it in position.
  • the secondary shaft (39) enters the bevel gearbox (10) and it carries, at its end, a bevel gear (52) cooperating with a large crown (53) keyed onto a shaft (54).
  • the direction of rotation of the shaft (54) can be reversed by the rotation of a half-turn of the box (10) relative to the box (9), and it suffices, for this purpose, to disassemble the bolts fastening, rotate the box (10) by half a turn, then replace the bolts in this position.
  • a vertical plate (55) At the rear of the gearbox (10) is fixed by bolts, not shown, a vertical plate (55), the role of which is indicated below.
  • the chassis unit (7) is held on the motor housing (8) by bolts (56), regularly distributed over a circle.
  • the wall (7a) of the chassis block (7), which is adjacent to the motor housing (8) carries the pivot axis (57) of a steering T (58).
  • the upper part (59) of the steering T (58) carries, in a shoulder, at each of its ends, a ball joint (60a) (60b) in alignment with the axis (57) each of the ball joints (60a) (60b ) controlling a rigid link (61a) (61b), passing through the upper wall (7b) of the chassis block (7) and the plate (28a) through the aforementioned opening (29b).
  • Each link (61a, 61b) carries, at its end opposite the ball joints respectively (60a, 60b) a housing receiving another ball joint (62a, 62b), whose axes are carried by the steering sole (63.5) and are parallel to the axes of the ball joints (60a) and (60b).
  • the steering sole (63) is held on the chassis unit by a pinned pin (63a, 17, 23 ).
  • each link (66a), (66b), receives, at the other end, a ball joint respectively (67a) (67b) which is fixed to the hub respectively (68a), (68b) of the front wheels (3).
  • the hubs respectively (68a) (68b) carry so-called top ball joints, respectively (69a) (69b) which connect the points of triangular parts (70a), (70b) of elements called upper parallelograms (71a) (71b) ending with two parallel branches extending the triangle and lying in the axis of the latter passing through its apex connected to the ball joint (69a) (69b), these branches being fixed respectively to the front wall (7c) of the front chassis (7) and to an intermediate partition (7d), parallel to the latter ( Figures 1 and 2).
  • Each of the two links (77a) (77b) is fixed to an element (71a), (71b), as can be seen in FIG. 4.
  • the hubs (68a), (68b) receive the axes (81a), (81b) of the rollers (3), which are supported by bearings (82a), (83a); (82b), (83b). It goes without saying that a seal is produced by seals, which are not shown.
  • the axes (81a), (81b) carry the rims respectively (84a), (84b), by a hard and crimped mounting, not shown in the drawing.
  • the rims, casters and fixing bolts of the casters are identical for the front wheels (3) and the rear wheels (4). These elements have therefore been designated in the drawing by the same reference numbers.
  • the transmission shaft (54) of the bevel gearbox (10) is held by bearings (87a), (87b).
  • a double constant velocity universal joint (88) On one side of the output of the shaft (54), is arranged a double constant velocity universal joint (88), the articulation of which, on both sides, is in alignment with the articulation of the suspension .
  • a transmission by flexible hose (89) On the other side of the output of the shaft (54), there is a transmission by flexible hose (89), since there is no reverse gear.
  • the flexible spring type transmits movement in one direction, according to the invention.
  • the pads (1) can be fitted with cardan joints or flexible hoses, as described above.
  • the output of these gimbals or hoses is fixed on yokes respectively (90a) (90b), inside which are ball bearings (91a) and (91b), and freewheels (92a) and (92b) , mounted side by side on the axes (93a) and (93b) passing inside the hubs (94a) and (94b) held by bearings (95a) and (95b) and (96a) and (96b).
  • the axes (93a), (93b) support rims (84a), (84b) as well as the wheels (85a), (85b) and their bolts (86).
  • the undersides of the rims (84a), (84b) of the front and rear wheels can receive brake discs, such as the discs (97a) (97b) shown for the rear casters (4) in FIG. 2.
  • Braking can be of the clamping type by "ferrodo" (98), as shown in Figure 2 for the right rear wheel, on either side of the disc (97b), or by pressing on one side, as shown in (99), (100) in Figure 2, for the left rear wheel.
  • the rear suspension of the skate (1) is formed by the upper parallelograms (101a), (101b), articulated, on one side, on the gearbox (9) by bolts (102a) and (102b) ( Figure 3 ), and, on the other, on the hubs (84a), (84b) by bolts (103a), (103b).
  • the suspension is carried out by jacks (104a), (104b) and damping springs (105a) (105b), the assembly being connected, on the one hand to the parallelograms (101a), (101b) at the points respectively (106a) (106b), and opposite, to the plate (55) by bolts (107a) (107b).
  • a stabilizer bar (108), held by two yokes (109a), (109b) is carried by two links respectively (110a) (110b) on the parallelograms (101a) (101b) to allow articulation.
  • the lower parallelograms (see Figure 3) designated by the reference numbers (111a), (111b) are different, because it is expected that they can be lengthened or shortened by the provision of threaded bars not to the right and not to left, respectively (112a) (112b).
  • the lower parallelograms (111a), (111b) are fixed to the plate (55) by bolts respectively (113a) and (113b) and to the hubs respectively (94a) (94b), by bolts (114a), (114b) .
  • a contactor (115) ( Figure 3) controls the position of the ground support to suppress the braking off.
  • the rear plate (55) carries a fixed emergency brake shoe (55a) (at 55b) ( Figures 1 and 3).
  • a heat engine (116) actuates a power generator (117), regulated at (118), for storage in a power tank (119), part of which the energy comes to the manual control (120).
  • This is arranged threaded in the palm of the hand and held on the wrist by a strap (121).
  • An order can be made for the right hand or the left hand; the one shown corresponds to the right hand.
  • Throttle control is proportional to thumb thrust of the control. Braking is carried out on all of the skate wheels (1) by depressing the control by the four fingers. A set of indicators and control means (pressures, flows, speeds) makes it possible to manage the orders given.
  • An electronic or hydraulic regulation (122) manages all orders, protects overvoltages or overpressures, manages the servo motors. Overloads and overpressures are released in (123).
  • the regulation (122) also controls the shifting of gears and locks in good time so as not to have two gears at the same time.
  • the command gives priority to braking instead of acceleration and it is obtained, if the skater accelerates too quickly, that the engine switches to the safety position. It will then be necessary to start from zero with the acceleration control to resume normal operation.
  • FIG. 6 we see that there is shown a ski (300) according to the present invention.
  • the elements of the skate (301) which are found identically on the ski (300) have been designated by the same reference numbers as those used to describe the skate (1). These are the motor (8), the gearbox (9) and the angle gearbox (10) with its elements (41); (52-54); (87a) and (87b), as well as (50).
  • the track is an assembly articulated on one side, composed of the transmission casing (302) provided with its cover and its screws.
  • the transmission casing (302) is held on the angle gearbox (10) by a tubular support (303), itself held by screws not shown.
  • the support (303) ensures the articulation of the casing (302) by means of a wear ring (304).
  • an identical tubular support (303) is disposed, held by screws not shown, ensuring articulation and rigidity, covered by a wear ring ( 305), cooperating with the bearing end (306) of a guide piece (307).
  • the guide (307) comprises a ring (308) for supporting a track housing (309a) with the interposition of a wear ring.
  • a bearing (310) is received which maintains an axis (311) supporting and passing through the roller (312) of the track (309), held by two bearings (313) and (314 ) and by a freewheel (315).
  • the axis (311) is held by two bearings (316a) and (316b), themselves held inside the transmission housing (302). The latter receives the joint by a ring not shown.
  • the transmission takes place from the axis (54) by a pinion or a keyed pulley (317), a chain or a toothed belt (318), to a pinion or a pulley (319) keyed to the shaft (311) , which drives the actual track (320) via the roller (312).
  • the two track housings (309a) and (309b) hold the track rollers (321) to (324) of the track (320), the tensioner roller (325), as well as the support support roller (326). caterpillar. All have a long clamping bolt (327) and a bearing tube (328). We could mount two ball bearings on each roller.
  • the flexible, rubberized track (320) receives, around its periphery, a set of pads (329) allowing better grip on snow (FIG. 7).
  • the pads (329) do not protrude from the underside of the skis (300).
  • the shaft (54) rotates in a direction such that the track (320) tends to press on the snow to give better grip. It is assisted in this by four springs (330), (331), (332) and (333), fixed on the track housings (309a). and (309b) by one end, and by the other ends, to bent legs (334) screwed into the ski (301) by screws (335).
  • the assembly (8-9-10) is held on the ski (301) by a lug (336), on the engine side (8) (FIG. 8) held thereon by bolts not shown and on the ski (300 ) by screws (337).
  • Two other legs (338) ( Figure 7) hold the angle gearbox (10) on the ski (330).
  • the track assembly (320) can be raised by slaving and lowered by a simple gesture of the tip of the stick on the lever.
  • a part (339) which carries a stud or central axis (340). This receives a ring (341) held by a pin (342) and provided with a "ferrodo" serving as support on the part (339).
  • the ring (341) is extended by a lever (343) to which a rod (344) is articulated, the opposite end of which is articulated to a connecting rod (345).
  • the latter is pierced with three holes, two to hold two square levers (346), (347), fixed on the one hand to the ski (300) by screws (348) and on the other hand, to pins ( 349) carried by the casing (309a).
  • the rod (345) receives the end of a spring (350) connected to the same base (334) as the aforementioned spring (333).
  • the track (320) can be locked at the front and at the rear by pawls (351), (352) which hold two tabs (353) (354) welded on the casing (309b) from below.
  • the two pawls (351) (352) are kept pressed on the two lugs (353) (354) by springs not shown between the lug under consideration and a cover casing (355) held on the ski (300) by front and rear closures (356).
  • the two pawls (351) and (352) are fixed on a axis (357) held by three bearings (358) (two are shown in Figure 6) in the cover housing (355).
  • the axis (357) protrudes at (357a) outside the casing (355), where it is folded towards the inside of the ski (300) to allow easy release of the track (320) by pressure on said axis (357).
  • a contactor (359) (FIG. 6) controls the correct position and neutralizes the driving effect of the lever (307 ).
  • Figures 9 to 11 are views similar to Figures respectively 3, 4 and 2, showing an alternative embodiment which consists of a double track shoe.
  • the elements of the skate in FIGS. 2 to 4, which are identical in these last three figures, have been designated by the same reference numbers, and the analogous elements, by reference numbers greater than 300.
  • the front axle ( Figure 10) is modified to have a wheelbase identical to the rear axle by upper parallelograms (471a) (471b) with slide to allow the tension of the track.
  • These parallelograms (471a) (471b) are held by identical bolts (72a) (72b) on the frame (7c), as well as the lower parallelograms (480a) (480b) which are held by the bolts (81a) (81b ) on said frame (7c).
  • Parts (401a) (401b) join the lower and upper parallelograms to the hubs (68a) (68b), these parts being each held on the hubs (68a) (68b) by bolts respectively (402a) (402b).
  • the upper and lower parallelograms are fixed to the parts (401a) (401b) by bolts (403a) (403b) which allow the tension of the track.
  • the suspension cylinders (74a) (74b) (FIG. 4) are each replaced by a rigid link (474a) (474b) held by the axes of the same type (73a) (73b) on the wheel side, and (75a) (75b) built side (7c). We therefore obtain a rigid assembly.
  • the ball joints (60a) and (60b) are mounted in the frame (7c), the two links (61a) (61b) therefore being rigidly blocked.
  • the rear axle ( Figure 9) is kept rigid by replacing the damping cylinders (104a-104b); (105a-105b) by rigid rigs (404a) (404b) held by the same bolts (106a) (106b).
  • the length of the lower parallelograms (111a) (111b) will be adjusted by an adjusting means (112a) (112b) so that it is identical to that of the upper parallelograms (101a) (101b); in this way, the wheels will be perpendicular to the ground.
  • two supports (404a) (404b) are fixed by bolts respectively (405a) (405b) a sole (406) being fixed, at its ends, to the hubs (94a) (94b) via bolts (407a) (407b) ( Figure 11) and, in its central part, to the supports respectively (404a) (404b), by bolts (408a) (408b).
  • the conduct of the skate with tracks is different from that of the roller skate. It will be necessary to lift the feet and operate by sliding on the ground by pressing on the heels and lifting the toes.

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Abstract

Self-propelled engine comprising at least one unit (1) provided with a propulsion system, notable in that at least one unit of the said engine comprises, optionally, at least one of the following systems: braking system (55a); suspension system (74a, b); steering system (58). Since these systems (or system) are remote-controlled, remote-control means (120) are furthermore provided which also control a power-generation (117) and -storage (119) system. <IMAGE>

Description

La présente invention concerne un engin autopropulsé, par exemple des patins à roulettes, des patins pouvant être utilisés sur des skis pour remonter une pente facilement, etc.The present invention relates to a self-propelled machine, for example roller skates, skates which can be used on skis for easy hill climbing, etc.

On connaît des patins autopropulsés, mais ces engins ne sont pas commandés à distance, ne sont pas autonomes pen­dant des périodes de temps importantes, et ne sont pas, en général, équipés d'une suspension, d'un système de freinage et d'un système de direction. En outre, les engins existants ne possèdent pas de variateur de vitesse des roues ou des chenilles entraînées.Self-propelled skates are known, but these machines are not remotely controlled, are not autonomous for long periods of time, and are not, in general, equipped with a suspension, a braking system and a steering system. In addition, existing machines do not have a speed variator for the wheels or driven tracks.

La présente invention permet de pallier ces inconvé­nients. Ainsi, la source de puissance pour l'entraînement de l'engin est un moteur thermique non monté sur l'engin lui-même et télécommandé par les mêmes moyens et dispositifs que les systèmes de propulsion et de freinage montés sur l'engin par exemple.The present invention overcomes these drawbacks. Thus, the power source for driving the machine is a heat engine not mounted on the machine itself and remotely controlled by the same means and devices as the propulsion and braking systems mounted on the machine for example. .

Ainsi, conformément à l'invention l'engin autopropulsé comprend au moins une unité pourvue d'un système de propulsion caractérisé en ce qu'au moins une unité dudit engin comprend, facultativement, au moins l'un des systèmes suivants : système de freinage ; système de suspension ; système de direction, ces systèmes (ou système) étant télécommandés, des moyens de commande à distance étant en outre prévus qui contrôlent égale­ment un système de génération et de stockage de puissance. Il comporte au moins deux unités disposées en parallèle, chacune de ces unités étant équipée au moins d'un système de propulsion monté sur une structure de support et de maintien, lesdits moyens de télécommande agissant simultanément sur les systèmes montés sur lesdites unités, ainsi que sur ledit système de génération et de stockage de puissance qui est monté indépen­damment desdites unités.Thus, in accordance with the invention the self-propelled vehicle comprises at least one unit provided with a propulsion system characterized in that at least one unit of said vehicle optionally comprises at least one of the following systems: braking system ; suspension system; steering system, these systems (or system) being remote-controlled, means of remote control being furthermore provided which also control a power generation and storage system. It comprises at least two units arranged in parallel, each of these units being equipped with at least one propulsion system mounted on a support and holding structure, said remote control means acting simultaneously on the systems mounted on said units, as well as on said power generation and storage system which is mounted independently of said units.

Lesdits moyens de télécommande sont reliés audit système de génération et de stockage de puissance monté indé­pendamment desdites unités, d'une part et auxdits systèmes montés sur lesdites unités, d'autre part. Ces moyens étant, essentiellement un dispositif de régulation électronique, électrique, hydraulique ou équivalent ; des dispositifs de déverrouillage de surcharge et de surpressions et un organe de contrôle et de transmetteurs d'ordres actionné manuelle­ment.Said remote control means are connected to said power generation and storage system mounted independently of said units, on the one hand, and to said systems mounted on said units, on the other hand. These means being, essentially an electronic regulation device, electric, hydraulic or equivalent; overload and overpressure unlocking devices and a manually operated control and command transmitter unit.

Ladite structure comporte une partie pour le support de la charge à transporter et une partie pour le maintien d'au moins un des systèmes de propulsion, de freinage, de suspension et de direction.Said structure comprises a part for supporting the load to be transported and a part for maintaining at least one of the propulsion, braking, suspension and steering systems.

Le seul système de génération et de stockage de puissance monté indépendamment desdites unités comprend, en série, un moteur thermique, un générateur de puissance élec­trique, pneumatique, hydraulique ou équivalent, un dispositif de régulation et un réservoir de stockage de puissance.The only power generation and storage system mounted independently of said units comprises, in series, a heat engine, an electric, pneumatic, hydraulic or equivalent power generator, a regulation device and a power storage tank.

Lesdits moyens de commande sont reliés à des dispo­sitifs de sécurité pour actionner ou supprimer simultanément les systèmes de freinage montés facultativement sur chacune desdites unités, ladite commande donnant la priorité au frei­nage au lieu de l'accélération.Said control means are connected to safety devices for simultaneously actuating or suppressing the braking systems optionally mounted on each of said units, said command giving priority to braking instead of acceleration.

Selon un premier mode de réalisation, l'engin con­forme à l'invention, par exemple des patins à roulettes, comporte sur chacune des unités précitées quatre roues mon­tées deux à deux sur un chassis avant et un chassis arrière de ladite structure respectivement, lesdites roues arrières faisant partie du système de propulsion (i) étant motrices à des vitesses sélectionnées par l'intermédiaire d'un variateur de vitesse actionné par un moteur, via un dispositif (une boîte) de renvoi d'angle, un système de freinage (ii) agis­sant sur au moins lesdites roues motrices, étant prévu ainsi qu'un système de direction (iii) et un système de suspension (iv) comprenant des dispositifs de suspension des roues avant et des dispositifs de suspension des roues arrière.According to a first embodiment, the machine according to the invention, for example roller skates, comprises on each of the aforementioned units four wheels mounted in pairs on a front chassis and a rear chassis of said structure respectively, said wheels rear part of the propulsion system (i) being driven at speeds selected by means of a speed variator actuated by a motor, via a device (a box) of angle transmission, a braking system (ii ) acting on at least said driving wheels, being provided as well as a steering system (iii) and a suspension system (iv) comprising front wheel suspension devices and rear wheel suspension devices.

Le chassis avant est relié au chassis arrière via ledit moteur et ledit variateur de vitesse.The front chassis is connected to the rear chassis via said motor and said variable speed drive.

Le variateur de vitesse est une boîte de vitesses à pignons commandés par des vérins à partir dudit système de commande, relié aux roues arrière par l'intermédiaire de la boîte de renvoi d'angle et un entraînement par cardan ou par un flexible souple transmettant le mouvement rotatoire d'un seul sens.The variable speed drive is a gearbox with pinions controlled by jacks from said control system, connected to the rear wheels via the angle gearbox and a drive by cardan or by a flexible hose transmitting the rotary movement in one direction.

Le système de freinage comprend des disques montés au moins sur les roues motrices et des garnitures de freinage, le mouvement relatif entre lesdits disques et lesdites garni­tures pour le serrage de ces dernières par des moyens méca­niques, hydrauliques, électromagnétiques ou équivalent, étant télécommandé à partir dudit système de commande.The braking system comprises discs mounted at least on the drive wheels and brake linings, the relative movement between said discs and said linings for the application of the latter by mechanical, hydraulic, electromagnetic or equivalent means, being remotely controlled from of said control system.

Lesdits dispositifs de sécurité comprennent un con­tacteur qui supprime le freinage afin de contrôler la posi­tion d'appui au sol.Said safety devices include a contactor which removes the braking in order to control the position of support on the ground.

Pour la suspension des roues avant directrices, deux amortisseurs (un par roue) sont articulés, d'une part, sur les extrémités des triangles du chassis avant et d'autre part, par des axes sur la paroi supérieure (entre la paroi avant et la paroi arrière) du chassis avant, une barre stabilisatrice reliée latéralement à deux biellettes étant supportée par la paroi avant du chassis avant.For the suspension of the front steering wheels, two shock absorbers (one per wheel) are articulated, on the one hand, on the ends of the triangles of the front chassis and on the other hand, by axes on the upper wall (between the front wall and the rear wall) of the front chassis, a stabilizer bar connected laterally to two rods being supported by the front wall of the front chassis.

La suspension des roues arrière est réalisée par des amortisseurs, reliés d'une part aux parallélogrammes et à la plaque faisant partie du chassis arrière, une barre stabili­satrice étant portée par deux biellettes sur lesdits parallé­logrammes pour en permettre l'articulation, des moyens étant en outre prévus pour permettre le raccourcissement ou l'allon­gement de la partie inférieure desdits parallélogrammes.The rear wheels are suspended by shock absorbers, connected on the one hand to the parallelograms and to the plate forming part of the rear chassis, a stabilizing bar being carried by two links on said parallelograms to allow articulation thereof, means being in further provided for allowing the shortening or lengthening of the lower part of said parallelograms.

Le système de direction comporte une semelle pouvant pivoter par l'action de la charge portée autour des axes disposés l'un derrière l'autre parallèlement à l'axe longitu­dinal d'une unité de l'engin à l'encontre d'un dispositif élastique de rappel, ladite semelle étant reliée à la chaîne cinématique permettant le déplacement angulaire (par rapport à l'axe longitudinal de l'engin) des roues avant.The steering system comprises a sole that can pivot by the action of the load carried around the axes arranged one behind the other parallel to the longitudinal axis of a unit of the machine against a device elastic return, said sole being connected to the kinematic chain allowing the angular displacement (relative to the longitudinal axis of the machine) of the front wheels.

Ladite semelle comprend une plaque inférieure (de direction) et une plaque supérieure sur laquelle la charge (par exemple un pied) prend appui, des moyens pourvus d'un dispositif élastique de rappel étant prévus pour le verrouil­lage de ladite charge.Said sole comprises a lower (steering) plate and an upper plate on which the load (for example a foot) is supported, means provided with an elastic return device being provided for locking said load.

Ladite chaîne cinématique comprend essentiellement un parallélogramme déformable constitué par deux biellettes articulées d'une part sur une semelle qui est rigidement reliée à ladite plaque de façon à ce que lesdites biellettes effectuent des mouvements sensiblement verticaux lors du pivo­tement de ladite plaque autour des axes sensiblement paral­lèles à l'axe longitudinal de l'unité et d'autre part, sur un "T" de direction pouvant pivoter autour d'un axe monté sur la paroi arrière du châssis avant et des biellettes et rotules permettant la transformation du mouvement vertical desdites biellettes dû au pivotement de ladite plaque en un mouvement angulaire horizontal des roues avant de l'unité, des moyens étant prévus pour (i) la régulation de la sensibilité de la direction et de (ii) la grandeur de l'angle de direction.Said kinematic chain essentially comprises a deformable parallelogram constituted by two rods articulated on the one hand on a sole which is rigidly connected to said plate so that said rods perform substantially vertical movements during the pivoting of said plate around substantially parallel axes to the longitudinal axis of the unit and on the other hand, on a steering "T" which can pivot around an axis mounted on the rear wall of the front chassis and of the rods and ball joints allowing the transformation of the vertical movement of said rods due to the pivoting of said plate in a horizontal angular movement of the front wheels of the unit, means being provided for (i) regulating the sensitivity of the steering and (ii) the magnitude of the steering angle.

Lesdits moyens sont (i) des trous pratiqués dans lesdites biellettes disposées verticalement et dans le "T" de direction, et (ii) des organes de régulation de la longueur des biellettes disposées horizontalement.Said means are (i) holes made in said rods arranged vertically and in the direction "T", and (ii) members for regulating the length of the rods arranged horizontally.

Une carrosserie de protection est montée fixe sur la structure de support et de maintien de l'unité.A protective body is fixedly mounted on the support and holding structure of the unit.

Selon un autre mode de réalisation, l'engin conforme à l'invention comporte un système de propulsion monté sur au moins une unité, qui elle, est fixée sur un ski, au moins partiellement, au-dessus d'une ouverture pratiquée dans celui-ci.According to another embodiment, the machine according to the invention comprises a propulsion system mounted on at least one unit, which itself is fixed on a ski, at least partially, above an opening made in that -this.

Chaque unité comporte une chenille d'entraînement avançant dans un seul sens uniquement, ladite chenille compre­nant essentiellement une chenille souple, un chemin de roule­ment, un galet tendeur et un dispositif d'entraînement réalisé sous forme d'une poulie ou d'un pignon pouvant être abaissé à travers l'orifice pratiqué dans le ski jusqu'à ce que ladite chenille souple entre en contact avec le sol, des moyens étant prévus pour soulever et abaisser la chenille.Each unit comprises a drive track advancing in one direction only, said track essentially comprising a flexible track, a raceway, a tensioner roller and a drive device produced in the form of a pulley or a pinion which can be lowered through the hole in the ski until said flexible track comes into contact with the ground, means being provided for raising and lowering the track.

Lesdits moyens sont essentiellement constitués par un guide articulé d'une part, sur l'axe d'entraînement de la chenille proprement dite et d'autre part, sur l'arbre par l'intermédiaire d'un organe de friction, cet arbre étant entraîné par le moteur, via une boîte de variation de vitesse et une boîte de renvoi d'angle, le mouvement rotatoire d'abaissement et de soulèvement étant commandé par un levier fixé sur une tige articulée à une biellette et des leviers à équerre agissant sur des tétons solidaires du carter de la chenille.Said means are essentially constituted by a guide articulated on the one hand, on the drive axis of the track itself and on the other hand, on the shaft by means of a friction member, this shaft being driven by the motor, via a speed variation box and an angle gearbox, the rotary movement lowering and lifting being controlled by a lever fixed on a rod hinged to a link and angle levers acting on studs integral with the casing of the track.

Des moyens élastiques sont fixés sur les carters de la chenille d'une part, et sur les skis d'autre part ; ces moyens permettant de faciliter l'abaissement de ladite chenille et l'obtention d'une très bonne adhérence entre la chenille proprement dite et le sol ; des dispositifs de verrouillage de la chenille étant en outre prévus.Elastic means are fixed on the casings of the track on the one hand, and on the skis on the other hand; these means making it possible to facilitate the lowering of said track and obtaining very good adhesion between the track itself and the ground; track locking devices being further provided.

Un cache carter de recouvrement protège la chenille et son entraînement.A cover casing protects the track and its drive.

Selon encore un autre mode de réalisation, chaque unité est à double chenille entraînée dans un seul sens par des roues crantées, ces roues crantées étant montées sur un ensemble rigide avant consistant essentiellement en des paral­lélogrammes, des biellettes rigides et un ensemble arrière rigide consistant essentiellement en un parallélogramme infé­rieur pourvu des moyens de réglage de sa longueur, un parallé­logramme supérieur, et deux supports, des moyens d'entraîne­ment des roues crantées arrière étant montées entre lesdits ensembles rigides avant et arrière.According to yet another embodiment, each unit is a double track driven in one direction by toothed wheels, these toothed wheels being mounted on a rigid front assembly consisting essentially of parallelograms, rigid rods and a rigid rear assembly consisting essentially in a lower parallelogram provided with means for adjusting its length, an upper parallelogram, and two supports, means for driving the rear toothed wheels being mounted between said rigid front and rear assemblies.

Pour mieux illustrer l'objet de l'invention, on va en décrire maintenant, à titre d'exemples purement illustra­tifs et non limitatifs, plusieurs modes de réalisation repré­sentés sur le dessin annexé :

  • - les figures 1 et 2 sont des vues en coupe longitudinale, respectivement verticale et horizontale, d'un patin à roulettes conforme à l'invention ;
  • - les figures 3 et 4 sont des vues en coupe transversale, respectivement à la partie arrière et à la partie avant du patin à roulettes des figures 1 et 2 ;
  • - la figure 5 représente le schéma de montage de la commande du patin à roulettes des figures 1 à 4 ;
  • - la figure 6 représente, en coupe longitudinale horizontale, le mécanisme de la partie transmission d'un ski, équipé conformément à la présente invention ;
  • - la figure 7 représente une vue en coupe transversale corres­pondant à la figure 6, montrant la chenille du ski ;
  • - la figure 8 représente, en coupe transversale, la chenille complète montée sur le ski des figures 6 et 7 ;
  • - la figure 9 représente partiellement la vue arrière d'un patin à roulettes, tel qu'il était représenté sur la figure 3, mais montrant les modifications en vue du montage en chenille ;
  • - la figure 10 représente, partiellement en élévation, partiel­lement en coupe, la vue avant d'un patin à roulettes, tel qu'il était représenté sur la figure 4, mais montrant les modifications en vue du montage en chenille ;
  • - la figure 11 représente une vue de dessus, analogue à la figure 2, d'un patin à roulettes équipé de chenilles.
To better illustrate the object of the invention, we will now describe, by way of purely illustrative and nonlimiting examples, several embodiments shown in the accompanying drawing:
  • - Figures 1 and 2 are views in longitudinal section, respectively vertical and horizontal, of a roller skate according to the invention;
  • - Figures 3 and 4 are cross-sectional views, respectively at the rear part and at the front part of the roller skate of Figures 1 and 2;
  • - Figure 5 shows the assembly diagram of the roller skate control of Figures 1 to 4;
  • - Figure 6 shows, in horizontal longitudinal section, the mechanism of the transmission part of a ski, equipped in accordance with the present invention;
  • - Figure 7 shows a cross-sectional view corresponding to Figure 6, showing the ski track;
  • - Figure 8 shows, in cross section, the complete track mounted on the ski of Figures 6 and 7;
  • - Figure 9 partially shows the rear view of a roller skate, as it was shown in Figure 3, but showing the modifications for the track mounting;
  • - Figure 10 shows, partially in elevation, partially in section, the front view of a roller skate, as it was shown in Figure 4, but showing the modifications for the track assembly;
  • - Figure 11 shows a top view, similar to Figure 2, of a roller skate equipped with tracks.

Si l'on se réfère à la figure 1, on voit que l'on a représenté, en coupe longitudinale verticale, une unité dudit engin pouvant être un patin à roulettes (1) selon l'invention, comprenant, une semelle (2) pour l'appui de la chaussure, cette semelle étant dotée de quatre roulettes, à savoir deux roulettes avant (3) et deux roulettes arrière (4).If we refer to Figure 1, we see that there is shown, in vertical longitudinal section, a unit of said machine can be a roller skate (1) according to the invention, comprising, a sole (2) for the support of the shoe, this sole being provided with four casters, namely two front casters (3) and two rear castors (4).

La semelle (2) se compose d'une plaque inférieure de direction (5) et d'une plaque supérieure (6), sur laquelle le pied prendra appui et dont la surface libre est avantageuse­ment anti-dérapante.The sole (2) consists of a lower steering plate (5) and an upper plate (6), on which the foot will rest and whose free surface is advantageously non-slip.

Para ailleurs, les deux roulettes avant (3) sont reliées par un bloc-châssis avant (7), situé lui-même à l'avant d'un moteur (8), qui transmet le mouvement à une boîte de vitesse (9), située à l'arrière du moteur (8) et coopérant avec une boîte de renvoi d'angle (10) du châssis arrière (11), reliant les deux roulettes arrière (4).Furthermore, the two front casters (3) are connected by a front chassis unit (7), itself located at the front of a motor (8), which transmits the movement to a gearbox (9) , located at the rear of the engine (8) and cooperating with an angle gearbox (10) of the rear chassis (11), connecting the two rear rollers (4).

La plaque de direction (5) est repliée une fois d'équerre vers le haut le long de ses deux bordures avant et arrière respectivement (5a) et (5b), et deux fois d'équerre vers le haut, puis vers l'intérieur en (5c) sur sa bordure longitudinale intérieure si l'on considère la position de la chaussure de l'utilisateur.The steering plate (5) is folded once square upwards along its two front and rear edges respectively (5a) and (5b), and twice square upwards, then inwards in (5c) on its inner longitudinal edge if we consider the position of the user's shoe.

Dans la plaque de direction (5) sont pratiqueés trois ouvertures, avant, centrale et arrière, respectivement (12a) (12b) et (12c). Ces ouvertures (12a) à (12c) sont traversées chacune par un loquet respectivement (13a), (13b) et (13c), perpendiculairement à la plaque (5). Ces loquets (13a) à (13c) comportent, dans leur partie située sous la plaque (5), des orifices pour le passage d'une platine allongée (14), parral­lèle à ladite plaque (5) et disposée suivant l'axe longitu­dinal de celle-ci. La platine (14), repliée à sa partie arrière en (14a) est maintenue par trois éléments de guidage, avant, central et arrière, respectivement (15a), (15b) et (15c), qui sont constitués par des saillies dirigées vers le bas, portées par la face inférieure de la plaque (5). La pla­tine ou axe (14) traverse les éléments de guidage, central et arrière, respectivement (14b) et (14c), et elle pénètre, par son extrémité avant, dans une cavité de l'élément de guidage (15a).In the steering plate (5) three openings are made, front, central and rear, respectively (12a) (12b) and (12c). These openings (12a) to (12c) are each traversed by a latch respectively (13a), (13b) and (13c), perpendicular to the plate (5). These latches (13a) to (13c) comprise, in their part located under the plate (5), orifices for the passage of an elongated plate (14), parallel to said plate (5) and arranged along the longitudinal axis of it. The plate (14), folded back at its rear part at (14a) is held by three guide elements, front, central and rear, respectively (15a), (15b) and (15c), which are formed by projections directed towards the bottom, carried by the underside of the plate (5). The plate or axis (14) passes through the guide elements, central and rear, respectively (14b) and (14c), and it penetrates, by its front end, into a cavity of the guide element (15a).

La plaque de direction (5) est maintenue à l'avant sur le bloc-châssis avant (7) par un axe goupillé (17). A cet effet, la plaque (5) comporte une projection vers le bas (18), et le bloc-châssis avant (7), une projection vers le haut (19), les deux projections (18) et (19) venant en appui l'une contre l'autre et étant reliées par l'axe (17) parallèle à l'axe longitudinal du patin à roulettes.The steering plate (5) is held at the front on the front chassis unit (7) by a pinned pin (17). To this end, the plate (5) has a downward projection (18), and the front chassis block (7), an upward projection (19), the two projections (18) and (19) coming in bearing against each other and being connected by the axis (17) parallel to the longitudinal axis of the roller skate.

A la partie centrale, la plaque (5) est, de la même façon, reliée au carter du bloc-moteur (8). A cet effet, sur ledit carter, est disposée une équerre (20) fixée à ce der­nier par un boulon (21) et coopérant avec une projection (22) dirigée vers le bas, portée par la plaque (5), un axe (23) reliant l'équerre (20) et la projection (22). La lumière (16c) permet à la projection (22) de traverser la platine (14).In the central part, the plate (5) is, in the same way, connected to the casing of the engine block (8). For this purpose, on said housing, is disposed a bracket (20) fixed to the latter by a bolt (21) and cooperating with a projection (22) directed downwards, carried by the plate (5), an axis (23 ) connecting the bracket (20) and the projection (22). The light (16c) allows the projection (22) to pass through the plate (14).

A l'arrière, la plaque (5) est maintenue sur la boîte de vitesse (9). A cet effet, une plaque-support (24) est fixée par des boulons (25) à l'arrière de ladite boîte de vitesse, et la plaque (5) comporte une projection vers le bas (26) et étant reliée à la plaque-support (24) par un axe (27) bloqué par une goupille. Un ressort (27a) (figure 3) oblige la plaque (5) à revenir à sa position centrale.At the rear, the plate (5) is held on the gearbox (9). For this purpose, a support plate (24) is fixed by bolts (25) to the rear of said gearbox, and the plate (5) has a downward projection (26) and being connected to the plate -support (24) by an axis (27) locked by a pin. A spring (27a) (Figure 3) forces the plate (5) to return to its central position.

Il est prévu une carrosserie de protection (28), qui comporte une platine centrale (28a), parallèle à la platine (14) et disposée au-dessous de celle-ci. Ladite platine (28a) est bordée par deux ailes longitudinales inclinées (28b), s'ouvrant vers l'extérieur, qui se prolongent extérieurement par des extensions (28c) surplombant les roulettes (3) et (4), et repliées vers le bas suivant des zones arrondies (28d) pour constituer des protections latérales (28e), arrivant à peu près au niveau des moyeux des roulettes (3) et (4).A protective body (28) is provided, which comprises a central plate (28a), parallel to the plate (14) and disposed below the latter. Said plate (28a) is bordered by two inclined longitudinal wings (28b), opening towards the outside, which are extended externally by extensions (28c) overhanging the rollers (3) and (4), and folded down along rounded zones (28d) to form lateral protections (28e), arriving approximately at the level of the hubs of the rollers (3) and (4).

La platine (28a) comporte, de l'avant vers l'arrière, des lumières respectivement (29a), (29b), (29c) et (29d). Les lumières (29a), (29c) et (29d) permettent le passage des trois éléments de liaison de la plaque de direction (5), res­pectivement au bloc-châssis avant (7), au carter du moteur (8) et à la boîte de vitesse (9), comme cela a été décrit plus haut. La platine (28a) est, par ailleurs, fixée au carter du moteur (8) par une équerre centrale (30) boulonnée sur ledit carter.The plate (28a) comprises, from front to rear, lights respectively (29a), (29b), (29c) and (29d). The lights (29a), (29c) and (29d) allow the passage of the three connecting elements of the steering plate (5), respectively to the front chassis unit (7), to the motor housing (8) and to the gearbox (9), as described above. The plate (28a) is also fixed to the motor housing (8) by a central bracket (30) bolted to said housing.

Le moteur (8) transmet le mouvement à la boîte de vitesse (9) qui comporte une paroi (9a) amovible pour per­mettre d'y avoir accès au besoin. La voîte de vitesse (9) est fixée sur le carter du moteur (8) par des boulons (31). L'arbre moteur se prolonge par un arbre primaire (32), sup­porté, à chaque extrémité de la boîte (9) par des paliers avant et arrière, respectivement (33) et (34). Sur l'arbre primaire (32), tournent librement quatre pignons (35) à (38), de l'avant vers l'arrière.The motor (8) transmits the movement to the gearbox (9) which has a removable wall (9a) to allow access to it if necessary. The gearbox (9) is fixed to the motor housing (8) by bolts (31). The drive shaft is extended by a primary shaft (32), supported at each end of the box (9) by front and rear bearings, respectively (33) and (34). On the primary shaft (32), freely rotate four pinions (35) to (38), from front to rear.

Un arbre secondaire (39) est également disposé dans la boîte de vitesse (9) parallèlement à l'arbre primaire et au-dessous de celui-ci. Il est maintenu par des paliers (40), (41), à chacune de ses extrémités, et il reçoit un ensemble de quatre pignons respectivement (42), (43), (44) et (45), coopérant respectivement avec les pignons (35), (36), (37) et (38).A secondary shaft (39) is also arranged in the gearbox (9) parallel to the primary shaft and below it. It is held by bearings (40), (41), at each of its ends, and it receives a set of four pinions respectively (42), (43), (44) and (45), cooperating respectively with the pinions (35), (36), (37) and (38).

Deux tiges de commande respectivement (46) et (47) (figure 2) actionnent des bagues de synchro, respectivement (48) et (49), ayant chacune trois positions et disposées, pour la première, entre les pignons (35) et (36), et, pour la seconde, entre les pignons (37) et (38). Les bagues de synchro (48) et (49) commandent des vérins respectivement (50) et (51) (figure 3), ayant également trois positions corres­pondant à celles des bagues de synchro.Two control rods respectively (46) and (47) (Figure 2) actuate synchro rings, respectively (48) and (49), each having three positions and arranged, for the first, between the pinions (35) and ( 36), and, for the second, between the pinions (37) and (38). The synchro rings (48) and (49) control jacks respectively (50) and (51) (Figure 3), also having three positions corresponding to those of the synchro rings.

Le changement de vitesse s'effectue de la manière suivante : la bague (48) étant en position avant dans le sens de la marche, la première vitesse est engagée et maintenue par le vérin (50) commandé par la tige (46). Dans sa position intermédiaire, le vérin (50) maintient le point mort. Lorsque le vérin (50) est en deuxième position, la deuxième vitesse est engagée, la bague (48) ayant coulissé sur l'arbre à can­nelures (32) et ayant rendu solidaire le pignon (36) dudit arbre (32). Lorsque le vérin (50) n'est plus sollicité par la première vitesse, c'est-à-dire qu'il est revenu au point milieu ou point mort, le vérin (51) n'est plus auto-verrouillé et il permet le passage de la troisième vitesse par l'intermé­diaire de la tige de commande (47), faisant coulisser sur l'arbre à cannelures (32), la bague de synchro (49) vers le pignon (37), sur lequel elle se verrouille. La quatrième vitesse est, quant à elle, commandée par le vérin (51), amenant la tige de commande (47) à faire glisser la bague de synchro (49) sur ledit arbre (32) en direction du pignon (38), le verrouillant solidairement sur l'arbre (32).The speed change takes place as follows: the ring (48) being in the forward position in the direction of travel, the first gear is engaged and maintained by the jack (50) controlled by the rod (46). In its intermediate position, the jack (50) maintains the neutral position. When the jack (50) is in the second position, the second gear is engaged, the ring (48) having slid on the spline shaft (32) and having made the pinion (36) integral with said shaft (32). When the cylinder (50) is no longer stressed by the first gear, that is to say that it has returned to mid-point or neutral, the cylinder (51) is no longer self-locked and it allows the passage of the third gear via the control rod (47), sliding on the spline shaft (32), the synchro ring (49) towards the pinion (37), on which it is locked . The fourth speed is, in turn, controlled by the jack (51), causing the control rod (47) to slide the synchro ring (49) on said shaft (32) in the direction of the pinion (38), the securely locking on the shaft (32).

Lorsque le patineur désirera passer sur une vitesse supérieure ou inférieure, il exécutera ce changement de vitesse par la commande fixée sur sa main droite ou gauche par enfoncement d'un bouton-poussoir.When the skater wishes to shift to a higher or lower speed, he will execute this change of speed by the command fixed on his right or left hand by pressing a push button.

Par exemple, si le vérin (50) est positionné en deuxième vitesse et que le patineur sollicite le passage de la troisième vitesse, la première phase d'exécution fera revenir au point mort (point central). Le vérin (50) est con­trôlé par le contacteur de retour à la position point mort ; seul le vérin (51) pourra exercer l'avancement de la bague de synchro (49) vers le pignon (37) pour enclencher la troisième vitesse. Il ne faut pas perdre de vue que le patineur a un patin à chaque pied et une seule commande dans la main, et lorsqu'il y a changement de vitesse, l'exécution se fera en même temps sur le patin droit et le patin gauche.For example, if the jack (50) is positioned in second gear and the skater requests the passage of third gear, the first execution phase will return to neutral (central point). The cylinder (50) is controlled by the switch back to neutral position; only the jack (51) can exercise the advancement of the synchro ring (49) towards the pinion (37) to engage the third speed. It should not be forgotten that the skater has one skate on each foot and only one command in the hand, and when there is a change of speed, the execution will be done on the right skate and the left skate .

La boîte de renvoi d'angle (10) est maintenue sur la boîte de vitesse (9) par des boulons non représentés, répartis de façon circulaire autour de l'arbre (39) et un épaulement de centrage (également non représente) le mainte­nant en position.The bevel gearbox (10) is held on the gearbox (9) by bolts not shown, distributed in a circular fashion around the shaft (39) and a centering shoulder (also not shown) holding it in position.

L'arbre secondaire (39) pénètre dans la boîte de renvoi d'angle (10) et il porte, à son extrémité, un pignon conique (52) coopérant avec une grande couronne (53) clavetée sur un arbre (54). Le sens de rotation de l'arbre (54) peut être inversé par la rotation d'un demi-tour de la boîte (10) par rapport à la boîte (9), et il suffit, à cet effet, de démonter les boulons de fixation, de faire pivoter la boîte (10) d'un demi-tour, puis de remettre en place les boulons dans cette position.The secondary shaft (39) enters the bevel gearbox (10) and it carries, at its end, a bevel gear (52) cooperating with a large crown (53) keyed onto a shaft (54). The direction of rotation of the shaft (54) can be reversed by the rotation of a half-turn of the box (10) relative to the box (9), and it suffices, for this purpose, to disassemble the bolts fastening, rotate the box (10) by half a turn, then replace the bolts in this position.

A l'arrière de la boîte de vitesse (10), est fixée par des boulons non représentés, une plaque verticale (55), dont le rôle est indiqué plus loin.At the rear of the gearbox (10) is fixed by bolts, not shown, a vertical plate (55), the role of which is indicated below.

A l'avant, le bloc-châssis (7) est maintenu sur le carter du moteur (8) par des boulons (56), régulièrement répartis sur un cercle. La paroi (7a) du bloc-châssis (7), qui est attenante au carter du moteur (8) porte l'axe de pivo­tement (57) d'un T de direction (58). La partie haute (59) du T de direction (58) porte, dans un épaulement, à chacune de ses extrémités, une rotule (60a) (60b) en alignement avec l'axe (57) chacune des rotules (60a) (60b) commandant une biellette rigide (61a) (61b), traversant la paroi supérieure (7b) du bloc-châssis (7) et la platine (28a) par l'ouverture (29b) précitée. Chaque biellette (61a, 61b) porte, à son extrémité opposée aux rotules respectivement (60a, 60b) un logement recevant une autre rotule (62a, 62b), dont les axes sont portés par la semelle de direction (63,5) et sont parallé­les aux axes des rotules (60a) et (60b). Ces dernières ainsi que les rotules (62a) et (62b), forment un parallélogrammé déformable.At the front, the chassis unit (7) is held on the motor housing (8) by bolts (56), regularly distributed over a circle. The wall (7a) of the chassis block (7), which is adjacent to the motor housing (8) carries the pivot axis (57) of a steering T (58). The upper part (59) of the steering T (58) carries, in a shoulder, at each of its ends, a ball joint (60a) (60b) in alignment with the axis (57) each of the ball joints (60a) (60b ) controlling a rigid link (61a) (61b), passing through the upper wall (7b) of the chassis block (7) and the plate (28a) through the aforementioned opening (29b). Each link (61a, 61b) carries, at its end opposite the ball joints respectively (60a, 60b) a housing receiving another ball joint (62a, 62b), whose axes are carried by the steering sole (63.5) and are parallel to the axes of the ball joints (60a) and (60b). The latter as well as the ball joints (62a) and (62b), form a deformable parallelogram.

Plusieurs trous sont pratiqués dans le T de direc­tion (58) et dans la semelle de direction (63) pour rendre plus ou moins sensible la direction du patin (1), suivant que les biellettes (61a) (61b) s'écartent ou se rapprochent du centre.Several holes are made in the steering T (58) and in the steering sole (63) to make the direction of the skid (1) more or less sensitive, depending on whether the rods (61a) (61b) move apart or are get closer to the center.

La semelle de direction (63) est maintenue sur le bloc-châssis par un axe goupillé (63a, 17, 23...).The steering sole (63) is held on the chassis unit by a pinned pin (63a, 17, 23 ...).

A la partie inférieure (64) du T de direction (58), et de part et d'autre de celle-ci, sont fixées deux rotules respectivement (65a) (65b), coopérant chacune avec une biel­lette respectivement (66a), (66b), ayant une longueur réglable. Chaque biellette (66a), (66b), reçoit, à l'autre extrémité, une rotule-tige respectivement (67a) (67b) qui est fixée au moyeu respectivement (68a), (68b) des roues avant (3).At the lower part (64) of the steering T (58), and on either side thereof, are fixed two ball joints respectively (65a) (65b), each cooperating with a connecting rod respectively (66a), ( 66b), having an adjustable length. Each link (66a), (66b), receives, at the other end, a ball joint respectively (67a) (67b) which is fixed to the hub respectively (68a), (68b) of the front wheels (3).

Les moyeux respectivement (68a) (68b) portent des rotules dites de dessus, respectivement (69a) (69b) qui relient les pointes de parties triangulaires (70a), (70b) d'éléments appelés parallélogrammes supérieurs (71a) (71b) se terminant par deux branches parallèles prolongeant le triangle et se situant dans l'axe de celui-ci passant par son sommet relié à la rotule (69a) (69b), ces branches étant fixées res­pectivement à la paroi avant (7c) du châssis-avant (7) et à une cloison intermédiaire (7d), parallèle à celle-ci (figures 1 et 2).The hubs respectively (68a) (68b) carry so-called top ball joints, respectively (69a) (69b) which connect the points of triangular parts (70a), (70b) of elements called upper parallelograms (71a) (71b) ending with two parallel branches extending the triangle and lying in the axis of the latter passing through its apex connected to the ball joint (69a) (69b), these branches being fixed respectively to the front wall (7c) of the front chassis (7) and to an intermediate partition (7d), parallel to the latter (Figures 1 and 2).

Sur les extrémités des triangles (70a), (70b), sont fixés, par l'intermédiaire d'axes (73a) (73b) des amortis­seurs de suspension respectivement (74a), (74b), maintenus sur la paroi (7b) entre les parois (7a) et (7c) par des axes respectivement (75a) (75b) (figures 1 et 4).On the ends of the triangles (70a), (70b) are fixed, by means of axes (73a) (73b) suspension shock absorbers respectively (74a), (74b), held on the wall (7b) between the walls (7a) and (7c) by axes respectively (75a) (75b) (Figures 1 and 4).

Une barre stabilisatrice avant (76) (figure 4), reliée latéralement à deux biellettes (77a) (77b) est suppor­tée dans deux paliers respectivement (78a) (78b), portés par la paroi avant (7c) du bloc-châssis (7). Chacune des deux biellettes (77a) (77b) est fixée sur un élément (71a), (71b), comme on peut le voir sur la figure 4.A front stabilizer bar (76) (Figure 4), laterally connected to two rods (77a) (77b) is supported in two bearings respectively (78a) (78b), carried by the front wall (7c) of the chassis unit (7 ). Each of the two links (77a) (77b) is fixed to an element (71a), (71b), as can be seen in FIG. 4.

Sur la partie basse des moyeux respectivement (68a) (68b), sont disposées des rotules (79a), (79b) qui sont filetées pour permettre le réglage des biellettes de parallé­ logrammes inférieurs (80a), (80b), qui sont, à leurs extrémi­tés opposées, fixées au bloc-châssis (7).On the lower part of the hubs respectively (68a) (68b), ball joints (79a), (79b) are arranged which are threaded to allow adjustment of the parallel rods. lower lograms (80a), (80b), which are, at their opposite ends, fixed to the chassis unit (7).

Les moyeux (68a), (68b), reçoivent les axes (81a), (81b) des roulettes (3), qui sont supportés par des roule­ments (82a), (83a) ; (82b), (83b). Il va de soi qu'une étan­chéité est réalisée par des joints, lesquels ne sont pas représentés. Les axes (81a), (81b) portent les jantes respec­tivement (84a), (84b), par un montage dur et serti, non représenté sur le dessin. Sur les jantes (84a), (84b), viennent se fixer des roues (85a), (85b) à bande lisse, comme repré­senté sur les figures 1 et 2, ou encore des roues pneumati­ques gonflables, telles que représentées en (185b) sur la figure 4 (partie gauche), ou des roues à crampons souples et rigides, telles que représentées en (285b) sur la figure 4 (partie droite). Toutes ces roues sont maintenues par des boulons (86) répartis sur le pourtour pour être vissées dans les jantes (84a), (84b).The hubs (68a), (68b) receive the axes (81a), (81b) of the rollers (3), which are supported by bearings (82a), (83a); (82b), (83b). It goes without saying that a seal is produced by seals, which are not shown. The axes (81a), (81b) carry the rims respectively (84a), (84b), by a hard and crimped mounting, not shown in the drawing. On the rims (84a), (84b), are fixed wheels (85a), (85b) with a smooth strip, as shown in FIGS. 1 and 2, or even inflatable pneumatic wheels, as shown in (185b) in FIG. 4 (left part), or wheels with flexible and rigid studs, as shown in (285b) in FIG. 4 (right part). All these wheels are held by bolts (86) distributed around the periphery to be screwed into the rims (84a), (84b).

Les jantes, roulettes et boulons de fixation des roulettes sont identiques pour les roues avant (3) et les roues arrière (4). Ces éléments ont donc été désignés sur le dessin par les mêmes chiffres de référence.The rims, casters and fixing bolts of the casters are identical for the front wheels (3) and the rear wheels (4). These elements have therefore been designated in the drawing by the same reference numbers.

L'arbre de transmission (54) de la boîte de renvoi d'angle (10) est maintenu par des roulements (87a), (87b). D'un côté de la sortie de l'arbre (54), est disposé un cardan double homocinétique (88), coulissant, dont l'articulation, de part et d'autre, se trouve en alignement avec l'articula­tion de la suspension. De l'autre côté de la sortie de l'arbre (54), est disposée une transmission par fléxible souple (89), puisqu'il n'y a pas de marche arrière. Le flexi­ble type ressort transmet le mouvement d'un seul sens, con­formément à l'invention.The transmission shaft (54) of the bevel gearbox (10) is held by bearings (87a), (87b). On one side of the output of the shaft (54), is arranged a double constant velocity universal joint (88), the articulation of which, on both sides, is in alignment with the articulation of the suspension . On the other side of the output of the shaft (54), there is a transmission by flexible hose (89), since there is no reverse gear. The flexible spring type transmits movement in one direction, according to the invention.

Les patins (1) pourront être équipés indifféremment de cardans ou de flexibles, tels que décrits ci-dessus. La sortie de ces cardans ou flexibles est fixée sur des chapes respectivement (90a) (90b), à l'intérieur desquelles se trouvent des roulements à billes (91a) et (91b), et des roues libres (92a) et (92b), montées côte à côte sur les axes (93a) et (93b) passant à l'intérieur des moyeux (94a) et (94b) maintenus par des roulements (95a) et (95b) et (96a) et (96b).The pads (1) can be fitted with cardan joints or flexible hoses, as described above. The output of these gimbals or hoses is fixed on yokes respectively (90a) (90b), inside which are ball bearings (91a) and (91b), and freewheels (92a) and (92b) , mounted side by side on the axes (93a) and (93b) passing inside the hubs (94a) and (94b) held by bearings (95a) and (95b) and (96a) and (96b).

Les axes (93a), (93b) supportent des jantes (84a), (84b) ainsi que les roues (85a), (85b) et leurs boulons (86).The axes (93a), (93b) support rims (84a), (84b) as well as the wheels (85a), (85b) and their bolts (86).

Les faces inférieures des jantes (84a), (84b) des roues avant et arrière peuvent recevoir des disques de frei­nage, tels que les disques (97a) (97b) représentés pour les roulettes arrière (4) sur la figure 2. Le freinage peut être du type à serrage par des "ferrodo" (98), comme représenté sur la figure 2 pour la roue arrière droite, de part et d'autre du disque (97b), ou encore par appui d'un seul côté, comme représenté en (99), (100) sur la figure 2, pour la roue arrière gauche.The undersides of the rims (84a), (84b) of the front and rear wheels can receive brake discs, such as the discs (97a) (97b) shown for the rear casters (4) in FIG. 2. Braking can be of the clamping type by "ferrodo" (98), as shown in Figure 2 for the right rear wheel, on either side of the disc (97b), or by pressing on one side, as shown in (99), (100) in Figure 2, for the left rear wheel.

La suspension arrière du patin (1) est formée par les parallélogrammes supérieurs (101a), (101b), articulés, d'un côté, sur la boîte de vitesse (9) par des boulons (102a) et (102b) (figure 3), et, de l'autre, sur les moyeux (84a), (84b) par des boulons (103a), (103b).The rear suspension of the skate (1) is formed by the upper parallelograms (101a), (101b), articulated, on one side, on the gearbox (9) by bolts (102a) and (102b) (Figure 3 ), and, on the other, on the hubs (84a), (84b) by bolts (103a), (103b).

La suspension est réalisée par des vérins (104a), (104b) et des ressorts amortisseurs (105a) (105b), l'ensemble étant relié, d'une part aux parallélogrammes (101a), (101b) aux points respectivement (106a) (106b), et à l'opposé, à la plaque (55) par des boulons (107a) (107b).The suspension is carried out by jacks (104a), (104b) and damping springs (105a) (105b), the assembly being connected, on the one hand to the parallelograms (101a), (101b) at the points respectively (106a) (106b), and opposite, to the plate (55) by bolts (107a) (107b).

Une barre stabilisatrice (108), maintenue par deux chapes (109a), (109b) est portée par deux biellettes respec­tivement (110a) (110b) sur les parallélogrammes (101a) (101b) pour en permettre l'articulation.A stabilizer bar (108), held by two yokes (109a), (109b) is carried by two links respectively (110a) (110b) on the parallelograms (101a) (101b) to allow articulation.

Les parallélogrammes inférieurs (voir figure 3) dési­gnés par les chiffres de référence (111a), (111b) sont diffé­rents, car il est prévu qu'ils peuvent s'allonger ou se rac­courcir par la disposition de barres filetées pas à droite et pas à gauche, respectivement (112a) (112b). Les parallélo­grammes inférieurs (111a), (111b) sont fixés à la plaque (55) par des boulons respectivement (113a) et (113b) et aux moyeux respectivement (94a) (94b), par des boulons (114a), (114b).The lower parallelograms (see Figure 3) designated by the reference numbers (111a), (111b) are different, because it is expected that they can be lengthened or shortened by the provision of threaded bars not to the right and not to left, respectively (112a) (112b). The lower parallelograms (111a), (111b) are fixed to the plate (55) by bolts respectively (113a) and (113b) and to the hubs respectively (94a) (94b), by bolts (114a), (114b) .

Un contacteur (115) (figure 3) contrôle la position de l'appui au sol pour supprimer le freinage pied levé.A contactor (115) (Figure 3) controls the position of the ground support to suppress the braking off.

Par ailleurs, la plaque arrière (55) porte une semelle (55a) de frein de secours fixé (en 55b) (figures 1 et 3).Furthermore, the rear plate (55) carries a fixed emergency brake shoe (55a) (at 55b) (Figures 1 and 3).

Sur la figure 5, on peut voir qu'un moteur thermique (116) actionne un générateur de puissance (117), régularisé en (118), en vue d'un stockage dans un réservoir de puissance (119), dont une partie de l'énergie vient à la commande manuelle (120). Celle-ci est disposée enfilée dans la paume de la main et maintenue au poignet par une sangle (121). Une commande peut être réalisée pour la main droite ou la main gauche ; celle représentée correspond à la main droite.In FIG. 5, it can be seen that a heat engine (116) actuates a power generator (117), regulated at (118), for storage in a power tank (119), part of which the energy comes to the manual control (120). This is arranged threaded in the palm of the hand and held on the wrist by a strap (121). An order can be made for the right hand or the left hand; the one shown corresponds to the right hand.

La commande des gaz est proportionnelle à l'enfonce­ment par le pouce de la commande. Le freinage s'effectue sur toutes les roues du patin (1) par l'enfoncement de la commande par les quatre doigts. Un ensemble de voyants et de moyens de contrôle (pressions, débits, vitesses) permet de gérer les ordres donnés.Throttle control is proportional to thumb thrust of the control. Braking is carried out on all of the skate wheels (1) by depressing the control by the four fingers. A set of indicators and control means (pressures, flows, speeds) makes it possible to manage the orders given.

Une régulation électronique ou hydraulique (122) gère tous les ordres, protège les surtensions ou surpressions, gère les asservissements des moteurs. Les surcharges et surpressions sont déverouillées en (123). La régulation (122) contrôle aussi le passage des vitesses et vérouille au moment opportun pour ne pas avoir deux vitesses en même temps.An electronic or hydraulic regulation (122) manages all orders, protects overvoltages or overpressures, manages the servo motors. Overloads and overpressures are released in (123). The regulation (122) also controls the shifting of gears and locks in good time so as not to have two gears at the same time.

La commande donne la priorité au freinage au lieu de l'accélération et l'on obtient, si le patineur accélère trop rapidement que le moteur passe en position de sécurité. Il faudra alors repartir à zéro par la commande d'accélération pour reprendre la marche normale.The command gives priority to braking instead of acceleration and it is obtained, if the skater accelerates too quickly, that the engine switches to the safety position. It will then be necessary to start from zero with the acceleration control to resume normal operation.

Si l'on se réfère maintenant aux figures 6 à 8, on voit que l'on a représenté un ski (300) conforme à la présente invention. Les éléments du patin (301) qui se retrouvent à l'identique sur le ski (300) ont été désignés par les mêmes chiffres de référence que ceux utilisés pour décrire le patin (1). Ce sont le moteur (8), la boîte de vitesse (9) et la boîte de renvoi d'angle (10) avec ses éléments (41) ; (52-54); (87a) et (87b), ainsi que (50).Referring now to Figures 6 to 8, we see that there is shown a ski (300) according to the present invention. The elements of the skate (301) which are found identically on the ski (300) have been designated by the same reference numbers as those used to describe the skate (1). These are the motor (8), the gearbox (9) and the angle gearbox (10) with its elements (41); (52-54); (87a) and (87b), as well as (50).

La chenille est un ensemble articulé d'un côté, com­posé du carter de transmission (302) muni de son cache et de ses vis. Le carter de transmission (302) est maintenu sur la boîte de renvoi d'angle (10) par un support tubulaire (303), lui-même maintenu par des vis non représentées. Le support (303) assure l'articulation du carter (302) par l'intermé­diaire d'une bague d'usure (304).The track is an assembly articulated on one side, composed of the transmission casing (302) provided with its cover and its screws. The transmission casing (302) is held on the angle gearbox (10) by a tubular support (303), itself held by screws not shown. The support (303) ensures the articulation of the casing (302) by means of a wear ring (304).

De l'autre côté de la boîte de renvoi d'angle (18), est disposé un support tubulaire identique (303), maintenu par des vis non représentées, assurant l'articulation et la rigidité, recouvert par une bague d'usure (305), coopérant avec l'extrémité formant palier (306) d'une pièce de guidage (307).On the other side of the angle gearbox (18), an identical tubular support (303) is disposed, held by screws not shown, ensuring articulation and rigidity, covered by a wear ring ( 305), cooperating with the bearing end (306) of a guide piece (307).

A l'opposé, le guide (307) comporte une bague (308) de soutien d'un carter de chenille (309a) avec interposition d'une bague d'usure. A l'intérieur de la bague (308), est reçu un roulement (310) qui maintient un axe (311) supportant et traversant le galet (312) de la chenille (309), maintenu par deux roulements (313) et (314) et par une roue libre (315). A son autre extrémité, l'axe (311) se trouve maintenu par deux roulements (316a) et (316b), eux-mêmes maintenus à l'intérieur du carter de transmission (302). Ce dernier reçoit l'articu­lation par une bague non représentée.In contrast, the guide (307) comprises a ring (308) for supporting a track housing (309a) with the interposition of a wear ring. Inside the ring (308), a bearing (310) is received which maintains an axis (311) supporting and passing through the roller (312) of the track (309), held by two bearings (313) and (314 ) and by a freewheel (315). At its other end, the axis (311) is held by two bearings (316a) and (316b), themselves held inside the transmission housing (302). The latter receives the joint by a ring not shown.

La transmission s'effectue dé l'axe (54) par un pignon ou une poulie clavetée (317), une chaîne ou une cour­roie crantée (318), à un pignon ou une poulie (319) clavetée sur l'arbre (311), qui entraîne la chenille proprement dite (320) par l'intermédiaire du galet (312).The transmission takes place from the axis (54) by a pinion or a keyed pulley (317), a chain or a toothed belt (318), to a pinion or a pulley (319) keyed to the shaft (311) , which drives the actual track (320) via the roller (312).

Les deux carters de chenilles (309a) et (309b) main­tiennent les galets (321) à (324) de chemin de roulement de la chenille (320), le galet tendeur (325), ainsi que le galet (326) de soutien de chenille. Tous comportent un long boulon de serrage (327) et un tube-palier (328). On pourrait monter deux roulements à billes sur chaque galet.The two track housings (309a) and (309b) hold the track rollers (321) to (324) of the track (320), the tensioner roller (325), as well as the support support roller (326). caterpillar. All have a long clamping bolt (327) and a bearing tube (328). We could mount two ball bearings on each roller.

Le chenille souple (320), caoutchoutée, reçoit, sur son pourtour, un ensemble de patins (329) permettant une meil­leure adhérence sur la neige (figure 7). Quand la chenille (320) est en position soulevée à travers l'orifice (300a), les patins (329) ne dépassent pas du dessous des skis (300).The flexible, rubberized track (320) receives, around its periphery, a set of pads (329) allowing better grip on snow (FIG. 7). When the track (320) is in the raised position through the orifice (300a), the pads (329) do not protrude from the underside of the skis (300).

L'arbre (54) tourne dans un sens tel que la chenille (320) tend à appuyer sur la neige pour donner une meilleure adhérence. Elle est en cela assistée par quatre ressorts (330), (331), (332) et (333), fixés sur les carters de chenille (309a) et (309b) par une extrémité, et par les autres extrémités, à des pattes coudées (334) vissées dans le ski (301) par des vis (335).The shaft (54) rotates in a direction such that the track (320) tends to press on the snow to give better grip. It is assisted in this by four springs (330), (331), (332) and (333), fixed on the track housings (309a). and (309b) by one end, and by the other ends, to bent legs (334) screwed into the ski (301) by screws (335).

L'ensemble (8-9-10) est maintenu sur le ski (301) par une patte (336), côté moteur (8) (figure 8) maintenue sur celui-ci par des boulons non représentés et sur le ski (300) par des vis (337). Deux autres pattes (338) (figure 7), main­tiennent la boîte de renvoi d'angle (10) sur le ski (330).The assembly (8-9-10) is held on the ski (301) by a lug (336), on the engine side (8) (FIG. 8) held thereon by bolts not shown and on the ski (300 ) by screws (337). Two other legs (338) (Figure 7) hold the angle gearbox (10) on the ski (330).

Selon l'invention, l'ensemble chenille (320) peut se soulever par asservissement et se baisser par un simple geste de la pointe du bâton sur le levier.According to the invention, the track assembly (320) can be raised by slaving and lowered by a simple gesture of the tip of the stick on the lever.

A une extrémité de l'axe (54), est montée clavetée une pièce (339) qui porte un téton ou axe central (340). Celui-ci reçoit une bague (341) maintenue par une goupille (342) et pourvue d'un "ferrodo" servant d'appui sur la pièce (339). La bague (341) se prolonge par un levier (343) auquel est articulée une tige (344) dont l'extrémité opposée est articulée à une biellette (345).At one end of the axis (54), is keyed a part (339) which carries a stud or central axis (340). This receives a ring (341) held by a pin (342) and provided with a "ferrodo" serving as support on the part (339). The ring (341) is extended by a lever (343) to which a rod (344) is articulated, the opposite end of which is articulated to a connecting rod (345).

Cette dernière est percée de trois trous, deux pour maintenir deux leviers à équerre (346), (347), fixées d'une part sur le ski (300) par des vis (348) et d'autre part, à des tétons (349) portés par le carter (309a). A son extrémité la biellette (345) reçoit l'extrémité d'un ressort (350) relié à la même embase (334) que le ressort (333) précité.The latter is pierced with three holes, two to hold two square levers (346), (347), fixed on the one hand to the ski (300) by screws (348) and on the other hand, to pins ( 349) carried by the casing (309a). At its end, the rod (345) receives the end of a spring (350) connected to the same base (334) as the aforementioned spring (333).

Lorsque le levier (343) est sollicité, les leviers à équerre (346) (347) appuient sur les tétons (349) solidaires du carter (309a) et tout l'ensemble remonte, la position haute étant représentée sur les figures 7 et 8.When the lever (343) is pressed, the angle levers (346) (347) press on the pins (349) integral with the casing (309a) and the whole assembly rises, the high position being shown in FIGS. 7 and 8 .

La chenille (320) peut être verrouillée à l'avant et à l'arrière par des cliquets (351), (352) qui maintiennent par le dessous deux pattes (353) (354) soudées sur le carter (309b). Les deux cliquets (351) (352) sont maintenus appuyés sur les deux pattes (353) (354) par des ressorts non représentés entre la patte considérée et un cache-carter de recouvrement (355) maintenu sur le ski (300) par des fermetures avant et arrière (356).The track (320) can be locked at the front and at the rear by pawls (351), (352) which hold two tabs (353) (354) welded on the casing (309b) from below. The two pawls (351) (352) are kept pressed on the two lugs (353) (354) by springs not shown between the lug under consideration and a cover casing (355) held on the ski (300) by front and rear closures (356).

Les deux cliquets (351) et (352) sont fixés sur un axe (357) maintenu par trois paliers (358) (deux sont repré­sentés sur la figure 6) dans le carter de recouvrement (355). L'axe (357) fait saillie en (357a) à l'extérieur du carter (355), où il est replié vers l'intérieur du ski (300) pour permettre de libérer facilement la chenille (320) par une pression sur ledit axe (357).The two pawls (351) and (352) are fixed on a axis (357) held by three bearings (358) (two are shown in Figure 6) in the cover housing (355). The axis (357) protrudes at (357a) outside the casing (355), where it is folded towards the inside of the ski (300) to allow easy release of the track (320) by pressure on said axis (357).

Lorsqu'on sollicite la remontée de la chenille (320) à travers l'orifice (300a) arrivée en position haute, un contacteur (359) (figure 6) contrôle la bonne position et neutralise l'effet d'entraînement du levier (307).When the crawler (320) is raised through the orifice (300a) which has reached the high position, a contactor (359) (FIG. 6) controls the correct position and neutralizes the driving effect of the lever (307 ).

Les figures 9 à 11 sont des vues analogues aux figures respectivement 3, 4 et 2, montrant une variante de réalisation qui consiste en un patin à double chenille. Les éléments du patin des figures 2 à 4, qui se retrouvent à l'identique dans ces trois dernières figures, ont été dési­gnés par les mêmes chiffres de référence, et les éléments analogues, par des chiffres de référence supérieurs à 300.Figures 9 to 11 are views similar to Figures respectively 3, 4 and 2, showing an alternative embodiment which consists of a double track shoe. The elements of the skate in FIGS. 2 to 4, which are identical in these last three figures, have been designated by the same reference numbers, and the analogous elements, by reference numbers greater than 300.

Le train avant (figure 10) est modifié pour comporter un empattement identique au train arrière par des parallélo­grammes supérieurs (471a) (471b) avec glissière pour permettre la tension de la chenille. Ces parallélogrammes (471a) (471b) sont maintenus par des boulons identiques (72a) (72b) sur le bâti (7c), de même ue les parallélogrammes inférieurs (480a) (480b) qui sont maintenus par les boulons (81a) (81b) sur ledit bâti (7c).The front axle (Figure 10) is modified to have a wheelbase identical to the rear axle by upper parallelograms (471a) (471b) with slide to allow the tension of the track. These parallelograms (471a) (471b) are held by identical bolts (72a) (72b) on the frame (7c), as well as the lower parallelograms (480a) (480b) which are held by the bolts (81a) (81b ) on said frame (7c).

Des pièces (401a) (401b) réunissent les parallélo­grammes inférieurs et supérieurs aux moyeux (68a) (68b), ces pièces étant maintenues chacune sur les moyeux (68a) (68b) par des boulons respectivement (402a) (402b). Les parallélo­grammes supérieurs et inférieurs sont fixés aux pièces (401a) (401b) par des boulons (403a) (403b) qui permettent la tension de la chenille.Parts (401a) (401b) join the lower and upper parallelograms to the hubs (68a) (68b), these parts being each held on the hubs (68a) (68b) by bolts respectively (402a) (402b). The upper and lower parallelograms are fixed to the parts (401a) (401b) by bolts (403a) (403b) which allow the tension of the track.

Les vérins de suspension (74a) (74b) (figure 4) sont remplacés chacun par une biellette rigide (474a) (474b) main­tenue par les axes de même type (73a) (73b) côté roues, et (75a) (75b) côté bâti (7c). On obtient donc un ensemble rigide. Pour supprimer le pivotement de la semelle (63), les rotules (60a) et (60b) sont montées dans le bâti (7c), les deux biellettes (61a) (61b) se trouvant donc bloquées de façon rigide.The suspension cylinders (74a) (74b) (FIG. 4) are each replaced by a rigid link (474a) (474b) held by the axes of the same type (73a) (73b) on the wheel side, and (75a) (75b) built side (7c). We therefore obtain a rigid assembly. To remove the pivoting of the sole (63), the ball joints (60a) and (60b) are mounted in the frame (7c), the two links (61a) (61b) therefore being rigidly blocked.

Le train arrière (figure 9) est maintenu rigide par le remplacement des vérins amortisseurs (104a-104b) ; (105a-­105b) par des riges rigides (404a) (404b) maintenues par les mêmes boulons (106a) (106b). On règlera la longueur des paral­lélogrammes inférieurs (111a) (111b) par un moyen de réglage (112a) (112b) pour qu'elle soit identique à celle des parallé­logrammes supérieurs (101a) (101b) ; de la sorte, les roues seront perpendiculaires au sol.The rear axle (Figure 9) is kept rigid by replacing the damping cylinders (104a-104b); (105a-105b) by rigid rigs (404a) (404b) held by the same bolts (106a) (106b). The length of the lower parallelograms (111a) (111b) will be adjusted by an adjusting means (112a) (112b) so that it is identical to that of the upper parallelograms (101a) (101b); in this way, the wheels will be perpendicular to the ground.

Sous le carter (10) deux supports (404a) (404b) sont fixés par des boulons respectivement (405a) (405b) une semelle (406) étant fixée, à ses extrémités, aux moyeux (94a) (94b) par l'intermédiaire de boulons (407a) (407b) (figure 11) et, dans sa partie centrale, aux supports respectivement (404a) (404b), par des boulons (408a) (408b).Under the casing (10) two supports (404a) (404b) are fixed by bolts respectively (405a) (405b) a sole (406) being fixed, at its ends, to the hubs (94a) (94b) via bolts (407a) (407b) (Figure 11) and, in its central part, to the supports respectively (404a) (404b), by bolts (408a) (408b).

Sur les quatre jantes (84a), (84b) viennent se monter les quatre roues crantées (485a) (485b), capables de recevoir les deux chenilles identiques (407) (figure 11).On the four rims (84a), (84b) are mounted the four notched wheels (485a) (485b), capable of receiving the two identical tracks (407) (Figure 11).

La conduite du patin doté de chenilles est différente de celle du patin à roulettes. Il faudra lever les pieds et opérer par glissement sur le sol en appuyant sur les talons et en levant la pointe du pied.The conduct of the skate with tracks is different from that of the roller skate. It will be necessary to lift the feet and operate by sliding on the ground by pressing on the heels and lifting the toes.

Il est bien entendu que les modes de réalisation ci-­dessus ne sont aucunement limitatifs et pourront donner lieu à toutes modifications désirables, sans sortir pour cela du cadre de l'invention.It is understood that the above embodiments are in no way limiting and may give rise to any desirable modifications, without departing from the scope of the invention.

Claims (24)

1.) - Engin autopropulsé comprenant au moins une unité pourvu d'un système de propulsion, caractérisé en ce qu'au moins une unité (1) dudit engin comprend, facultativement, au moins l'un des systèmes suivants : système de freinage ; système de suspension ; système de direction, ces systèmes (ou système) étant télécommandés, des moyens de commande à distance étant en outre prévus qui contrôlent également un système de géné­ration et de stockage de puissance.1.) - Self-propelled machine comprising at least one unit provided with a propulsion system, characterized in that at least one unit (1) of said machine optionally comprises at least one of the following systems: braking system; suspension system; steering system, these systems (or system) being remote-controlled, means of remote control being furthermore provided which also control a power generation and storage system. 2.) - Engin selon la revendication 1, caractérisé en ce qu'il comporte au moins deux unités (1) disposées en parallèle, chacune de ces unités (1) étant équipée au moins d'un système de propulsion monté sur une structure de support et de main­tien, lesdits moyens de télécommande agissant simultanément sur les systèmes montés sur lesdites unités, ainsi que sur ledit système de génération et de stockage de puissance qui est monté indépendamment desdites unités.2.) - Machine according to claim 1, characterized in that it comprises at least two units (1) arranged in parallel, each of these units (1) being equipped at least with a propulsion system mounted on a structure of support and holding, said remote control means acting simultaneously on the systems mounted on said units, as well as on said power generation and storage system which is mounted independently of said units. 3.) - Engin selon l'une des revendications 1 ou 2, caractérisé en ce que lesdits moyens de télécommande sont reliés audit système de génération et de stockage de puissance monté indé­pendamment desdites unités, d'une part et auxdits systèmes montés sur lesdites unités, d'autre part, ces moyens étant, essentiellement un dispositif de régulation (122) électroni­que, électrique, hydraulique ou équivalent ; des dispositifs de déverrouillage (123) de surcharge et de surpressions et un organe (120) de contrôle et de transmetteurs d'ordres actionné manuellement.3.) - Machine according to one of claims 1 or 2, characterized in that said remote control means are connected to said power generation and storage system mounted independently of said units, on the one hand and to said systems mounted on said units , on the other hand, these means being, essentially an electronic, electrical, hydraulic or equivalent regulation device (122); overload and overpressure unlocking devices (123) and a manually operated control and command transmitter (120). 4.) - Engin selon l'une des revendications 2 ou 3, caractérisé en ce que ladite structure comporte une partie (5, 6) pour le support de la charge à transporter et une partie (7 à 11) pour le maintien d'au moins un des systèmes de propulsion, de frei­nage, de suspension et de direction.4.) - Machine according to one of claims 2 or 3, characterized in that said structure comprises a part (5, 6) for the support of the load to be transported and a part (7 to 11) for the maintenance of at least one of the propulsion, braking, suspension and steering systems. 5.) - Engin selon l'une des revendications précédentes, carac­térisé en ce que le seul système de génération et de stockage de puissance monté indépendamment desdites unités comprend, en série, un moteur thermique (116),un générateur de puissance (117) électrique, pneumatique, hydraulique ou équivalent, un dispositif de régulation (118) et un réservoir de stockage de puissance (119).5.) - Machine according to one of the preceding claims, characterized in that the only power generation and storage system mounted independently of said units comprises, in series, a heat engine (116), a power generator (117) electric, pneumatic, hydraulic or equivalent, a regulating device (118) and a power storage tank (119). 6.) - Engin selon l'une des revendications précédentes, carac­térisé en ce que lesdits moyens de commande sont reliés à des dispositifs de sécurité (123, 115) pour actionner ou supprimer simultanément les systèmes de freinage montés facultativement sur chacune desdites unités, ladite commande donnant la prio­rité au freinage au lieu de l'accélération.6.) - Machine according to one of the preceding claims, characterized in that said control means are connected to safety devices (123, 115) for simultaneously actuating or removing the braking systems optionally mounted on each of said units, said command giving priority to braking instead of acceleration. 7.) - Engin selon l'une des revendications 1 à 6, caractérisé en ce qu'il comporte sur chacune des unités (1) précitées quatre roues (3, 4) montées deux à deux sur un chassis avant (7) et un chassis arrière (11) de ladite structure respecti­vement, lesdites roues arrière (4) faisant partie du système de propulsion (i) étant motrices à des vitesses sélectionnées par l'intermédiaire d'un variateur de vitesses (9) actionné par un moteur (8), via un dispositif (une boîte) de renvoi d'angle (10), un système de freinage (ii) agissant sur au moins lesdites roues (4) motrices, étant prévu ainsi qu'un système de direction (iii) et un système de suspension (iv) comprenant des dispositifs de suspension (74a, 74b) des roues avant (3) et des dispositifs de suspension (104a, 104b) des roues arrière (4).7.) - Machine according to one of claims 1 to 6, characterized in that it comprises on each of the above-mentioned units (1) four wheels (3, 4) mounted in pairs on a front chassis (7) and a rear chassis (11) of said structure respectively, said rear wheels (4) forming part of the propulsion system (i) being driven at speeds selected by means of a variable speed drive (9) actuated by a motor (8 ), via an angle transmission device (a box) (10), a braking system (ii) acting on at least said driving wheels (4), being provided as well as a steering system (iii) and a suspension system (iv) comprising suspension devices (74a, 74b) of the front wheels (3) and suspension devices (104a, 104b) of the rear wheels (4). 8.) - Engin selon la revendication 7, caractérisé en ce que le chassis avant (7) est relié au chassis arrière (11) via ledit moteur (8) et ledit variateur (9) de vitesse.8.) - Machine according to claim 7, characterized in that the front chassis (7) is connected to the rear chassis (11) via said motor (8) and said speed variator (9). 9.) - Engin selon l'une des revendications 7 ou 8, caracté­risé en ce que le variateur de vitesse (9) est une boîte de vitesse à pignons commandés par des vérins (50, 51) à partir dudit système de commande, relié aux roues arrière (4) par l'intermédiaire de la boîte de renvoi (10) d'angle et un entraînement par cardan (88) ou par un flexible souple (89) transmettant le mouvement rotatoire d'un seul sens.9.) - Machine according to one of claims 7 or 8, characterized in that the speed variator (9) is a gearbox with pinions controlled by jacks (50, 51) from said control system, connected to the rear wheels (4) by means of the angular gearbox (10) and a drive by cardan (88) or by a flexible hose (89) transmitting the rotary movement in one direction. 10.) - Engin selon l'une des revendications 7 à 9, caracté­risé en ce que le système de freinage comprend des disques (97a, 97b) montés au moins sur les roues motrices (4) et des garnitures (98, 99, 100) de freinage, le mouvement relatif entre lesdits disques et lesdites garnitures pour le serrage de ces dernières par des moyens mécaniques, hydrauliques, électromagnétiques ou équivalent, étant télécommandé à partir dudit système de commande.10.) - Machine according to one of claims 7 to 9, characterized in that the braking system comprises discs (97a, 97b) mounted at least on the drive wheels (4) and linings (98, 99, 100 ) braking, the relative movement between said discs and said linings for tightening of the latter by mechanical, hydraulic, electromagnetic or equivalent means, being remotely controlled from said control system. 11.) - Engin selon l'une des revendications 6 à 10, caracté­risé en ce que lesdits dispositifs de sécurité comprennent un contacteur (115) qui supprime le freinage afin de contrôler la position d'appui au sol.11.) - Machine according to one of claims 6 to 10, characterized in that said safety devices comprise a contactor (115) which removes the braking in order to control the position of support on the ground. 12.) - Engin selon l'une des revendications 1 à 11, caractéri­sé en ce que pour la suspension des roues avant directrices deux amortisseurs (74a, 74b) (un par roue) sont articulés, d'une part, sur les extrémités des triangles (70a, 70b) du chassis (7) avant et d'autre part, par des axes (75a, 75b) sur la paroi supérieure (7b) (entre la paroi avant (7a) et la paroi arrière (7c) du châssis avant (7), une barre stabilisatrice (7b) reliée latéralement à deux biellettes (77a, 77b) étant suppor­tée par la paroi avant (7a) du châssis avant (7).12.) - Machine according to one of claims 1 to 11, characterized in that for the suspension of the front steering wheels two shock absorbers (74a, 74b) (one per wheel) are articulated, on the one hand, on the ends of the triangles (70a, 70b) of the front chassis (7) and on the other hand, by pins (75a, 75b) on the upper wall (7b) (between the front wall (7a) and the rear wall (7c) of the chassis front (7), a stabilizer bar (7b) laterally connected to two links (77a, 77b) being supported by the front wall (7a) of the front frame (7). 13.) - Engin selon l'une des revendications 1 à 12, caractéri­sé en ce que la suspension des roues arrière (4) est réalisée par des amortisseurs (104a, 104b, 105a, 105b), reliées d'une part aux parallélogrammes (101a, 101b) et à la plaque (55) faisant partie du châssis arrière (11), une barre stabilisa­trice (108) étant portée par deux biellettes (110a, 110b) sur lesdits parallélogrammes pour en permettre l'articulation, des moyens (112a, 112b) étant en outre prévus pour permettre le raccourcissement ou l'allongement de la partie inférieure des­dits parallélogrammes.13.) - Machine according to one of claims 1 to 12, characterized in that the suspension of the rear wheels (4) is carried out by shock absorbers (104a, 104b, 105a, 105b), connected on the one hand to the parallelograms ( 101a, 101b) and to the plate (55) forming part of the rear chassis (11), a stabilizing bar (108) being carried by two rods (110a, 110b) on said parallelograms to allow articulation thereof, means (112a , 112b) being further provided to allow the shortening or lengthening of the lower part of said parallelograms. 14.) - Engin selon l'une des revendications précédentes, carac­térisé en ce que le système de direction comporte une semelle (2) pouvant pivoter par l'action de la charge portée autour des axes (17, 23, 27) disposés l'un derrière l'autre parallé­lement à l'axe longitudinal d'une unité (1) de l'engin à l'en­contre d'un dispositif élastique de rappel (27a), ladite semelle (2) étant reliée à la chaîne cinématique permettant le déplacement angulaire (par rapport à l'axe longitudinal de l'engin) des roues avant (3).14.) - Machine according to one of the preceding claims, characterized in that the steering system comprises a sole (2) which can pivot by the action of the load carried around the axes (17, 23, 27) arranged the one behind the other parallel to the longitudinal axis of a unit (1) of the machine against an elastic return device (27a), said sole (2) being connected to the kinematic chain allowing the angular displacement (relative to the longitudinal axis of the machine) of the front wheels (3). 15.) - Engin selon la revendication 14, caractérisé en ce que ladite semelle (2) comprend une plaque inférieure (5) (de direction) et une plaque supérieure (6) sur laquelle la charge (par exemple un pied) prend appui, des moyens (14, 14a, 13a, 13b, 13c) pourvus d'un dispositif élastique de rappel étant prévus pour le verrouillage de ladite charge.15.) - Machine according to claim 14, characterized in that said sole (2) comprises a lower plate (5) (of direction) and an upper plate (6) on which the load (for example a foot) is supported, means (14, 14a, 13a, 13b, 13c) provided with an elastic return device being provided for locking said charge. 16.) - Engin selon l'une des revendications 14 ou 15, carac­térisé en ce que ladite chaîne cinématique comprend essentiel­lement un parallélogramme déformable constitué par deux biellettes (61a, 61b) articulées d'une part sur une semelle (63) qui est rigidement reliée à ladite plaque (5) de façon à ce que lesdites biellettes (61a, 61b) effectuent des mouve­ments sensiblement verticaux lors du pivotement de ladite plaque (5) autour des axes (17, 23, 27) sensiblement parallèles à l'axe longitudinal de l'unité (1) et d'autre part, sur un "T" de direction (58) pouvant pivoter autour d'un axe (57) monté sur la paroi arrière (70) du châssis avant (7) et des biellettes et rotules (66a, 66b, 67a, 67b) permettant la transformation du mouvement vertical desdites biellettes (61a, 61b) du au pivotement de ladite plaque en un mouvement angu­laire horizontal des roues (3) avant de l'unité (1), des moyens étant prévus pour (i) la régulation de la sensibilité de la direction et de (ii) la grandeur de l'angle de direction.16.) - Machine according to one of claims 14 or 15, characterized in that said kinematic chain essentially comprises a deformable parallelogram consisting of two links (61a, 61b) articulated on the one hand on a sole (63) which is rigidly connected to said plate (5) so that said links (61a, 61b) perform substantially vertical movements when the pivoting of said plate (5) around the axes (17, 23, 27) substantially parallel to the longitudinal axis of the unit (1) and on the other hand, on a steering "T" (58) which can pivot around an axis (57) mounted on the rear wall (70) of the front chassis (7) and the connecting rods and ball joints (66a, 66b, 67a, 67b) allowing the transformation of the vertical movement of said links (61a, 61b) due to the pivoting of said plate into a horizontal angular movement of the wheels (3) before the unit (1), means being provided for (i) regulating the sensitivity of the steering and (ii) the magnitude of the steering angle. 17.)- Engin selon la revendication 16, caractérisé en ce que lesdits moyens sont (i) des trous pratiqués dans lesdites biellettes disposées verticalement et dans le "T" de direction et (ii) des organes de régulation de la longueur des biellettes disposées horizontalement.17.) - Machine according to claim 16, characterized in that said means are (i) holes made in said rods arranged vertically and in the direction "T" and (ii) members for regulating the length of the rods arranged horizontally. 18.) - Engin selon l'une des revendications 7 à 17, caractéri­sé en ce qu'une carrosserie de protection (28, 28a, 28b, 28c, 28d, 28e) est montée fixe sur la structure de support et de maintien de l'unité (1).18.) - Machine according to one of claims 7 to 17, characterized in that a protective bodywork (28, 28a, 28b, 28c, 28d, 28e) is fixedly mounted on the support and maintenance structure of the 'unit 1). 19.) - Engin selon l'une des revendications 1 à 5, caractérisé en ce que le système de propulsion est monté sur au moins une unité (301), qui elle, est fixée sur un ski (300) au moins partiellement au-dessus d'une ouverture (300a) pratiquée dans celui-ci.19.) - Machine according to one of claims 1 to 5, characterized in that the propulsion system is mounted on at least one unit (301), which is fixed on a ski (300) at least partially au- above an opening (300a) made therein. 20.) - Engin selon la revendication 19, caractérisé en ce que chaque unité (301) comporte une chenille (309) d'entraînement avançant dans un seul sens uniquement, ladite chenille (309) comprenant essentiellement une chenille souple (320), un chemin de roulement (320, 321 à 324), un galet tendeur (325) et un dispositif d'entraînement (319) réalisé sous forme d'une poulie ou d'un pignon pouvant être abaissé à travers l'orifice (300a) pratiqué dans le ski (300) jusqu'à ce que ladite che­nille souple (320) entre en contact avec le sol, des moyens (307) étant prévus pour soulever et abaisser la chenille (309).20.) - Machine according to claim 19, characterized in that each unit (301) comprises a track (309) for driving advancing in one direction only, said track (309) essentially comprising a flexible track (320), a raceway (320, 321 to 324), a tensioner roller (325) and a drive device (319) produced under in the form of a pulley or a pinion which can be lowered through the orifice (300a) formed in the ski (300) until said flexible track (320) comes into contact with the ground, means (307 ) being designed to raise and lower the track (309). 21.) - Engin selon l'une des revendications 19 ou 20, caracté­risé en ce que lesdits moyens sont essentiellement constitués par un guide (307) articulé d'une part sur l'axe (311) d'en­traînement de la chenille (320) proprement dite et d'autre part, sur l'arbre (54) par l'intermédiaire d'un organe de fric­tion (339), cet arbre (54) étant entraîné par le moteur (8) via une boîte de vitesse (9) et une boîte de renvoi d'angle (10), le mouvement rotatoire d'abaissement et de soulèvement étant commandé par un levier (343) fixé sur une tige (344) articulée à une biellette (345) et des leviers à équerre (346, 347) agissant sur des tétons (349) solidaire du carter (309a) de la chenille (309).21.) - Machine according to one of claims 19 or 20, characterized in that said means essentially consist of a guide (307) articulated on the one hand on the axis (311) of the track drive (320 ) proper and on the other hand, on the shaft (54) by means of a friction member (339), this shaft (54) being driven by the motor (8) via a gearbox (9 ) and a bevel gearbox (10), the rotary lowering and lifting movement being controlled by a lever (343) fixed on a rod (344) articulated to a link (345) and angle levers ( 346, 347) acting on pins (349) integral with the casing (309a) of the track (309). 22.) - Engin selon la revendication 20, caractérisé en ce que des moyens élastiques (330, 331, 332, 333) sont fixés sur les carters (309a, 309b) de la chenille (309) d'une part et sur les skis (300) d'autre part ; ces moyens permettant de facili­ter l'abaissement de ladite chenille (309) et l'obtention d'une très bonne adhérence entre la chenille proprement dite (320) et le sol ; des dispositifs de verrouillage (351, 352) de la chenille (320) étant en outre prévus.22.) - Machine according to claim 20, characterized in that elastic means (330, 331, 332, 333) are fixed on the casings (309a, 309b) of the track (309) on the one hand and on the skis (300) on the other hand; these means making it possible to facilitate the lowering of said track (309) and obtaining very good adhesion between the track itself (320) and the ground; locking devices (351, 352) of the track (320) being further provided. 23.) - Engin selon l'une des revendications 19 à 21, caracté­risé en ce qu'un cache carter de recouvrement (355) protège la chenille (320) et son entraînement (8,9, 10).23.) - Machine according to one of claims 19 to 21, characterized in that a covering casing cover (355) protects the track (320) and its drive (8,9, 10). 24.) - Engin selon l'une des revendications 1 à 6, caractérisé en ce que chaque unité est à double chenille (407) entraînées dans un seul sens par des roues crantées (485a, 485 b), ces roues crantées étant montées sur un ensemble rigide avant consistant essentiellement en des parallélogrammes (471a, 471b, 480a, 480b), des biellettes rigides (474a, 474b) et un ensemble arrière rigide consistant essentiellement en un parallélo­gramme inférieur (111a, 111b) pourvu des moyens de réglage (112a, 112b) de sa longueur, un parallélogramme supérieur (101a, 101b) et deux supports (404a, 404b), des moyens d'en­traînement (8,9, 10) des roues crantées arrière étant montées entre lesdits ensembles rigides avant et arrière.24.) - Machine according to one of claims 1 to 6, characterized in that each unit is double track (407) driven in one direction by toothed wheels (485a, 485 b), these toothed wheels being mounted on a rigid front assembly consisting essentially of parallelograms (471a, 471b, 480a, 480b), rigid rods (474a, 474b) and a set rigid rear consisting essentially of a lower parallelogram (111a, 111b) provided with means for adjusting (112a, 112b) its length, an upper parallelogram (101a, 101b) and two supports (404a, 404b), drive means ( 8, 9, 10) notched rear wheels being mounted between said rigid front and rear assemblies.
EP89402799A 1988-10-26 1989-10-11 Self-propelled engine, especially motorized roller skates Ceased EP0367645A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8813955 1988-10-26
FR8813955A FR2638977B1 (en) 1988-10-26 1988-10-26 SELF-PROPELLED MACHINE, ESPECIALLY MOTORIZED WHEELED SKATES

Publications (1)

Publication Number Publication Date
EP0367645A1 true EP0367645A1 (en) 1990-05-09

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Application Number Title Priority Date Filing Date
EP89402799A Ceased EP0367645A1 (en) 1988-10-26 1989-10-11 Self-propelled engine, especially motorized roller skates

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US (1) US5048632A (en)
EP (1) EP0367645A1 (en)
FR (1) FR2638977B1 (en)

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FR2675702A1 (en) * 1991-04-23 1992-10-30 Fernandez Paul Motorised skateboard
WO1993004745A1 (en) * 1991-09-06 1993-03-18 Nordica S.P.A. Power generator device particularly for wheeled sports implements
DE10004115A1 (en) * 2000-01-27 2001-08-09 Dieter Boehm Motor driven roller skates for inner city use do not require parking places are environmentally friendly
CN107149763A (en) * 2017-01-03 2017-09-12 廖伟登 Electricity drives in line many wheel roller skates

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US6739606B2 (en) 1996-01-29 2004-05-25 Marky Sparky, Inc. Dual-footboard scooter
DE29615908U1 (en) * 1996-08-01 1997-11-27 Lumpert, Jürg B., Zürich Inline skates with warning device
US5950754A (en) * 1997-07-22 1999-09-14 Ondrish, Jr.; Albert J. Multi-terrain riding board
JPH1159207A (en) * 1997-08-28 1999-03-02 Kiyoyuki Hosoda Power transmission device and mobile device
DE19803412A1 (en) * 1998-01-29 1999-08-05 Bayerische Motoren Werke Ag Wheel suspension for roller boards
WO1999039787A1 (en) * 1998-02-03 1999-08-12 Dirtthingz (Nz) Ltd. Improvements in and relating to recreational devices
US6428050B1 (en) * 1998-12-15 2002-08-06 Adam K. Brandley Motorized skate
US6299186B1 (en) * 2000-04-28 2001-10-09 Chuan-Fu Kao Antishock structure of scooter
FR2810895B1 (en) * 2000-06-30 2002-09-20 David Nicolas Cauchy SKATEBOARD WITH ELECTRIC MOTOR, CONTROLLED BY TWO PUSH SWITCHES, PROVIDING THREE OR FOUR FUNCTIONS INCLUDING BRAKING AND FREE WHEEL FUNCTIONS
US6382646B1 (en) * 2001-01-24 2002-05-07 Athony Shaw Kick scooter steering control mechanism
AU2003202326A1 (en) * 2002-01-07 2003-07-24 Norbert Hamy Lean-induced steerable wheel assembly
US6840338B2 (en) * 2002-03-08 2005-01-11 Honda Giken Kogyo Kabushiki Kaisha Articulation of suspension in an independently suspended beam structure
US7077414B1 (en) * 2003-06-26 2006-07-18 Jon Paul Kertes Self propelled scooter
US7121566B2 (en) * 2003-07-15 2006-10-17 Mcclain Nathan Myles Skateboard suspension system
US10376773B2 (en) * 2004-01-29 2019-08-13 Rasyad Chung Wheel-bearing truck
US7204330B1 (en) * 2006-06-08 2007-04-17 Nick Lauren Battery-powered, remote-controlled, motor-driven, steerable roller skates
EP2268530A4 (en) * 2008-03-20 2013-06-12 Zuumcraft Inc Lean steering truck with a torsion spring assembly
US9526977B2 (en) 2012-03-29 2016-12-27 Daniel B. Edney Powered skate with automatic motor control
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US9808705B2 (en) * 2014-06-10 2017-11-07 Acton, Inc. Wearable personal transportation system
US10071303B2 (en) * 2015-08-26 2018-09-11 Malibu Innovations, LLC Mobilized cooler device with fork hanger assembly
US10807659B2 (en) 2016-05-27 2020-10-20 Joseph L. Pikulski Motorized platforms
USD842409S1 (en) * 2018-04-10 2019-03-05 Matthew Novick Set of roller skates powered by pump action
RU2725642C1 (en) * 2019-05-13 2020-07-03 Николай Васильевич Вагин Transport
US11787508B2 (en) * 2020-04-23 2023-10-17 Keith Maximilian Rudofsky Powered boots

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DE835558C (en) * 1949-01-16 1952-04-03 Ernst Leander Hermsdorf Device used for the motorized locomotion of an individual
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US3876032A (en) * 1973-11-15 1975-04-08 Ferdinand Ferino Motorized skates
FR2392688A1 (en) * 1977-06-02 1978-12-29 Cornet Andre Walking aid allowing movement over any ground - consist of pair of endless tracked skates operated by motor strapped to back of user
US4508187A (en) * 1982-07-12 1985-04-02 Wenzel William B Powered roller skates
EP0215689A1 (en) * 1985-08-05 1987-03-25 Yvon Michel Vincent Self-propelling roller skates
FR2604915A1 (en) * 1986-10-01 1988-04-15 Leretaille Eric Rolling support for shoes

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675702A1 (en) * 1991-04-23 1992-10-30 Fernandez Paul Motorised skateboard
WO1993004745A1 (en) * 1991-09-06 1993-03-18 Nordica S.P.A. Power generator device particularly for wheeled sports implements
DE10004115A1 (en) * 2000-01-27 2001-08-09 Dieter Boehm Motor driven roller skates for inner city use do not require parking places are environmentally friendly
CN107149763A (en) * 2017-01-03 2017-09-12 廖伟登 Electricity drives in line many wheel roller skates

Also Published As

Publication number Publication date
FR2638977B1 (en) 1991-10-11
US5048632A (en) 1991-09-17
FR2638977A1 (en) 1990-05-18

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