FR2967968A1 - VEHICLE FOR EXAMPLE TYPE TROTTINETTE WITH SYSTEM FOR ADJUSTING THE ANGLE OF PIVOTING OF THE REAR WHEEL. - Google Patents

Abstract

The invention relates to a vehicle (1), for example a scooter, comprising a frame (2) configured to support a user, at least one moving part (3), for example a wheel, configured to move the vehicle ( 1) on a surface and at least one support piece (4) of the displacement piece (3), a pivot connection being arranged between the support piece (4) and the frame (2) according to a pivot axis (X2 ) disposed substantially vertically on the vehicle (1). The vehicle (1) comprises an adjustable stop device (6) configured to constitute two angular stops limiting the rotation in one direction and the other of the support piece (4) with respect to the frame (2), according to at least two adjustment positions of said two angular stops.

Description

VEHICLE FOR EXAMPLE OF THE TYPE TROTTINETTE WITH SYSTEM FOR ADJUSTING THE ANGLE OF PIVOTING OF THE REAR WHEEL

The present invention relates to a vehicle for the practice of sports activities, for leisure and / or for travel especially in urban areas. In the remainder of the description, reference is made to a scooter type vehicle for movement on firm ground. The invention, however, includes all other types of vehicles with similar characteristics 10 and can move on firm ground, or even to other types of vehicles with similar characteristics but intended to move on other types of surfaces such as snow, ice, grass, mud, etc. In a known manner, a scooter comprises a chassis in the form of a platform on which one or both feet of the foot rest. during the practice of the scooter. The scooter also includes moving parts consisting of a front wheel and a rear wheel. The front wheel is pivotally connected along a horizontal axis at the lower end of a steering tube, with a handlebar arranged at the upper end of said steering tube. This steering tube is pivotally mounted relative to the plate along an axis perpendicular to the plane of said plate. The scooter further includes a support piece for the rear wheel. The rear wheel is pivotally mounted along a horizontal axis relative to the support piece. According to a known design of the scooter, this support piece is mounted in pivot connection at the rear end of the plate along an axis perpendicular to the plane of the plate. Thus, during the practice of the scooter, the user can steer said scooter by manipulating the handlebar so as to turn more or less in one direction or the other, the front wheel of the scooter and change direction, this change of direction causing the rear wheel to pivot in one direction or the other. This type of scooter is particularly suitable for experienced users, with a perfect practice of scooter. On the contrary, when the user is not or little experienced, it has difficulty handling such a scooter. It is therefore preferable for this type of user not or little experienced to use a scooter of traditional design, having a rear wheel mounted on a fixed support part relative to the plate, said rear wheel being disposed in the longitudinal extension. of the plateau. The present invention aims at implementing a vehicle that can be adapted according to the experience of the user. This has the advantage of being able to adapt the scooter as and when the progression of the user or if you want to use the scooter for sports activities or for urban travel. This also has the advantage of allowing several users, novices, with a little experience or even very experienced, to use the same scooter. For this purpose, the invention relates to a vehicle, for example a scooter, comprising in particular a frame for example of the plateau type, at least one displacement piece for example of the wheel, ski or ice skate type, and at least one piece of support of the moving part. A pivot connection is arranged directly or indirectly between the support member and the frame along an axis disposed more or less vertically on the vehicle. Of course, the vehicle conventionally comprises a directional system for steering said vehicle. In the case of a scooter, it is for example a front wheel mounted in pivot connection along a horizontal axis at the lower end of a steering tube and a handlebar assembled at the upper end of the tube. direction, said steering tube being pivotally connected to a vertical axis at the front end of the plate. In addition, according to the invention, the scooter comprises an adjustable stop device configured to form two angular stops limiting the rotation in one direction or the other of the support member relative to the frame, in at least two adjustment positions said two angular stops.

Thus, according to the invention, it is understood that it is possible to limit more or less the pivot angle in one direction or the other of the moving part and the support part relative to the frame, by means of of the adjustable stop device and thus, to adapt the vehicle according to the experience of the user can, in a first extreme condition, consist in completely blocking the pivoting along the axis of pivoting, the displacement piece and of the support part relative to the chassis, corresponding to a user without experience. Of course, intermediate abutment positions will also be considered for users with more or less experience. Conversely, in a second extreme position, the displacement piece and the support piece can be left free to pivot about the pivot axis, relative to the frame. According to one embodiment of the scooter object of the present invention, the adjustable stop device comprises two branches spaced relative to each other and respectively arranged on both lateral sides of the support piece so that said piece support comes into abutment on said branches during its rotation in one direction or the other, according to the pivot axis, relative to the frame. In addition, a system for manipulating the branches is configured to modify the position of the two branches and thus the abutment position of the support part on said branches during its rotation in one direction or the other, along the axis of pivoting relative to the frame. According to this first design mode, the adjustable stop device comprises a body and a longitudinal sliding connection arranged between the frame and the body, the two branches being secured to the body and configured to have at least two spacings el and ez between them, the longitudinal translation of the body, in the direction of the length of the frame, in one direction or the other, vis-à-vis the frame for changing the spacing position of the branches vis-à-vis the support part .

According to this first embodiment, the adjustable stop device comprises a transmission system arranged between the frame and the body, said transmission system being configured to translate the body longitudinally under the frame. According to this first embodiment, the adjustable stop device comprises a control wheel configured to actuate the transmission system. Depending on the vehicle object of the present invention, the adjustable stop device preferably comprises three positions for adjusting the angular stops. A first position corresponding to a new or inexperienced user position. A second position corresponding to a user with more or less experience and a third position corresponding to an experienced user. Preferably, according to the first adjustment position of the angular stops, the angle of rotation of the support piece is of the order of 40 ° to 50 ° and preferably 45 °. Similarly, in the second position of adjusting the angular stops, the angle of rotation of the support piece is of the order of 80 ° to 100 ° and preferably 90 ° and in the third position of adjustment of the angular stops , the adjustable stop device is retracted, leaving free rotation of the support piece. According to the invention, the support piece comprises a support finger 20 configured to come into contact with the adjustable stop device in the different angular stop positions. According to the invention, the adjustable stop device is disposed in front of the support part, under the frame. However, it could be envisaged that it could be implemented in the central part or in the rear part with respect to said support piece. According to a second embodiment of the vehicle which is the subject of the invention, the adjustable stop device comprises two cleats, a link in circular translation arranged between the frame and the two cleats in order to modify the angular position between the two cleats. In addition, the adjustable stop device 30 comprises means for blocking the position of the catches with respect to the frame and a circular light configured on the support piece, in particular in its front part, for slidingly receiving the two catches. so that the two ends of the circular light respectively abut against the two tabs during pivoting of the support part along the pivot axis, in one direction or the other.

According to this second embodiment, the two tabs are removable from the circular light. According to the invention, the vehicle is a scooter or a skateboard, the chassis comprising at least one support plate, designed to directly support one or both feet of a user or even to support a seat on which the user sits. . In addition, said at least one moving piece is a rear wheel arranged at the rear of said at least one support plate. However, the invention applies to all other types of vehicles with similar characteristics that can move on firm ground, or even to other types of vehicles with similar characteristics but intended to move on other types surfaces, such as snow, ice, turf, mud ... For this purpose, according to the invention, the moving part is a wheel, a ski or an ice skate. The features and advantages of the present invention will appear on reading the following description of two modes of designing the scooter object of the present invention, which are based on figures among which: - Figure 1 illustrates the rear part of a scooter in an inverted position for displaying under the plate, the adjustable stop device according to a first design mode; - Figures 2 to 4 illustrate different adjustment positions of the adjustable stop device according to the first embodiment illustrated in Figure 1; - Figure 5 illustrates a design variant of the adjustable stop device on the scooter object of the present invention.

As illustrated in Figure 1, the scooter 1 comprises a plate 2 on which the user has one or two feet during the practice of the scooter. It can be seen that this plate has a longitudinal shape with respect to FIG. 1. The scooter 1 comprises at the rear portion 2a of the plate 2 a rear wheel 3 which is pivotally mounted along a first pivot axis X1 parallel to the plane of the plate. 2. This pivot axis X1 is disposed more or less horizontally during practice on a flat and horizontal surface, with respect to a support piece 4, as illustrated in particular in Figure 1. It can be seen through FIGS. 4 that the support piece 4 is pivotally mounted relative to the plate 2 by means of a bearing 5 providing a pivotally mounted mounting of said support member 4 relative to the plate 2 according to a second pivot axis X 2 disposed perpendicularly However, a slight inclination of this pivot axis X2 relative to an axis perpendicular to the plane of the plate 2 could be envisaged. In practice, on a flat surface and horizontal, this pivot axis X2 is substantially vertical. In addition, it can be seen in FIG. 1 that the pivot axis X1 is perpendicular to the pivot axis X2 and that these two axes X1, X2 are arranged in different planes. One could however consider a design of the support part 4 to arrange the pivot axis X1 and the pivot axis X2 in the same plane, without departing from the scope of the present invention. It can be seen through FIGS. 1 to 5 that the scooter 1 comprises an adjustable stop device 6 arranged below the platform 2 of the scooter. This adjustable stop device 6, according to the mode illustrated in Figures 1 to 4, consists of a stop piece 7 which comprises a body 8 and two branches 9,10. The body 8 is disposed in the front part while the two branches 9, 10 are arranged in the rear part and extend towards the rear of the scooter 1, as illustrated in FIGS. 1 to 4. Figures 2 to 4 that the branches 9,10 have a shape configured to define a first spacing el and a second spacing e2. For this purpose, the two branches 9,10 each have an inner side 11,12, these internal sides 11,12 being arranged symmetrically with respect to a longitudinal axis X3 on the plate 2. It could however provide an asymmetrical arrangement. This longitudinal axis X3 constitutes the longitudinal axis of symmetry of said plate 2; it is arranged perpendicularly with respect to the pivot axis X2 of the support part 4 with respect to said plate 2 and intersecting said pivot axis X2, as illustrated in FIG. 1. The internal sides 11, 12 of the two branches 9,10 are configured to define at least two different spacings. It can be seen in particular in FIGS. 2 to 4 that these internal sides 11, 12 define a first spacing e1 and a second spacing e2. It can be seen in FIGS. 1 to 4 that the support piece 4 comprises a support pin 13 configured to abut on the internal sides 11, 12 of the two branches 9, 10 during the pivoting of the support piece 4 relative to to the plate 2, in one direction or the other facing the longitudinal axis X3. The inner sides 11, 12 of the branches 9, 10 are respectively disposed on the lateral sides with respect to the bearing finger 13. It can be seen in FIGS. 1 to 4 that the body 8 is mounted in a Lipar slide connection with respect to the lower face. 2. This sliding link L1 is arranged in the longitudinal direction of the plate along the longitudinal axis X3, as illustrated in FIG. 1. It can be seen in FIGS. 1 to 4 the presence of a transmission system 14 which is arranged between the body 8 of the abutment piece 7 and the lower face of the plate 2. In the mode illustrated in Figures 1 to 4, the transmission system 14 is of the pinion / rack type, the rack 15 being arranged on the body 8, while the pinion 16 is pivotally mounted relative to the lower face of the plate 2 along a pivot axis X4. This pivot axis X4 is perpendicular to the plane of the plate 2. Thus, the rotation in one direction or the other of the pinion 16 which engages with the rack 15, causes a displacement along the longitudinal axis X3 of the stop piece 7 with respect to the plate 2, in a first direction illustrated by the arrow 17, or in a second direction illustrated by the arrow 18.

FIGS. 1 to 4 also show the presence of a wheel 19 secured to the pinion 15 making it possible to actuate the transmission system 14 so as to facilitate the adjustment of the position of the abutment piece 7 on the plate 2.

Of course, variants of the design of the transmission system 14 are conceivable without departing from the scope of the present invention, in order to actuate in translation along the longitudinal axis X3, the abutment piece 7 or any other variant, relative 2. It can be seen through FIGS. 2 to 4 that the abutment piece 7 can assume three adjustment positions. According to FIG. 2 corresponding to a displacement of the abutment piece 7 in the direction of the arrow 18 in an extreme position, the bearing finger 13 of the support piece 4 is able to abut against the first part 11a, 12a internal sides 11,12 branches 9,10 which have a spacing e1. In this case, the support piece 4 can pivot angularly in one direction or the other opposite the longitudinal axis X3, at an angle ai illustrated in Figure 2. This angle ai is between 40 ° and 50 ° preferably 45 °. According to FIG. 3, the abutment piece 7 is in an intermediate position according to which the bearing finger 13 is capable of abutting on a second part 11b, 12b of the internal sides 11, 12 of the branches 9, 10 which have a gap e2. In this position illustrated in FIG. 3, the support piece 4 is pivotable angularly in one direction or in another facing the longitudinal axis X 3 at an angle a 2 of between 80 ° and 100 °, preferably equal to 90 °. °.

According to FIG. 4, the abutment piece 7 is moved in an extreme position in the direction of the arrow 17 in which the branches 9, 10 are completely retracted relative to the bearing finger 13 of the support piece 4, leaving free pivoting said support member 4 relative to the abutment piece 7.

Of course, one could consider different configurations of the inner sides 11,12 of the two branches 9,10 so as to increase the number of intermediate abutment positions of the support finger 13 on said internal sides 11,12. Preferably, as is already known on current scooters, the assembly system 20 in pivot connection of the support part 4 relative to the plate 2, illustrated in FIGS. 1 to 4, already incorporates stops which limit the pivoting in one direction or the other opposite the axis X3 of said support part, on an angular portion. It will be understood that in this case, in the extreme position as illustrated in FIG. 4, the pivoting of the support piece 4 will be limited by the integrated stops of said pivot linkage system 20. It could however be envisaged that this pivot linkage system 20 is constituted by the single bearing 5 between the support piece 4 and the plate 2, that is to say without integrated stops, in which case the support piece and the wheel would be mounted crazy that is to say say free rotation 360 °, relative to the plateau. In this case, it would be possible to provide a configuration of the internal sides 11,12 of the branches 9,10 so that, when the abutment piece 7 is moved in the direction of the arrow 17 in the end position, said branches 9, 10 limit the pivoting of said support member 4, the inner side 11,12 branches 9,10 comprising a third portion 11c, 12c, schematized in dashed lines in Figure 4, on which abuts the support finger 13 in so as to limit the angular pivoting of the support piece, in one direction or the other opposite the longitudinal axis X3, at an angle a3 of between 150 ° and 180 ° and preferably equal to 160 °. These third parts 11c, 12c have between them a spacing e3. FIG. 5 illustrates an alternative design of the adjustable stop device 6. According to this design illustrated in FIG. 5, the support piece 4 comprises in its front part a circular portion 21 comprising a slot 22 limited by two ends 23, 24. In addition, two tabs 25,26 are mounted in slide connection 27 on the lower face of the plate 2, which allows to translate circularly said tabs 25,26 along this light 22, so as to change their position. In addition, locking means are provided for locking the position of the catches 25,26 in this slot 22.

These locking means may consist for example of locking screws such as pressure screws. However, a transmission system could be provided for simultaneously adjusting the angular position of the two tabs 25,26 on the slide link 27, thus ensuring an angular pivoting in one direction or the other opposite the axis X3, identical. When pivoting the support piece 4 in one direction or the other, the ends 23,24 of the slot 22 abut against the catches 25,26, which limits the angular pivoting of said support piece 4 in one way or the other. In this case, it is also possible to provide a control wheel of the transmission system so as to modify the position of the catches 25,26. It can be seen in FIGS. 1 to 4 that the adjustable stop device 6 is disposed in the front part with respect to the support part 4 under the plate 2. This also applies to the design mode illustrated in FIG. However, variants remain possible. Other features or variants of the adjustable stop 6 can be envisaged without departing from the scope of the present invention. It will be possible in particular to modify the configuration of the internal sides 11, 12 of the branches 9, 10 so as to modify the spacings e 1, e 2, e 3 and thus the pivot angles a 1, a 2, a 3 of the support part 4. It will also be possible to increase or decrease the number of spacings on the branches 9,10. At the end, the branches 9, 10 can be configured to, in a first position, completely block the pivoting of the support part 4 with respect to the plate 2 and, in a second position, leave the support piece free to pivot. 4 Of course, the scooter 1 according to the present invention comprises in a traditional way, at its front end, a front wheel pivotally mounted along an axis parallel to the plane of the plate 2, relative to the lower end of a steering tube, said steering tube being mounted in pivot connection along an axis perpendicular to the plane of the plate 2 at its anterior portion. A handlebar is further arranged at the upper end of said steering tube. These features are not illustrated in the figures, but are well known to those skilled in the art. Of course the present invention applies to other types of vehicles. One can for example consider a scooter that includes two trays with each at its rear end a rear wheel. We can consider a skateboard. On these types of vehicles, the user has his feet directly; one could however consider a seat adapted to the tray or the chassis so that the user can sit. In addition, these types of vehicles are equipped with wheels. Similar vehicles may be considered with ice skates or skis instead of wheels.

Claims (15)

REVENDICATIONS1. Vehicle (1) comprising a chassis (2) configured to directly or indirectly support a user, at least one displacement member (3) configured to move the vehicle (1) on a surface and at least one support member (4) ) of the displacement piece (3), a pivot connection being arranged directly or indirectly between the support piece (4) and the frame (2) according to a pivot axis (X2) disposed substantially vertically on the vehicle (1 ), characterized in that said vehicle (1) comprises an adjustable stop device (6) configured to constitute two angular stops limiting the rotation in one direction and the other of the support piece (4) with respect to the frame ( 2), in at least two adjustment positions of said two angular stops. 2. Vehicle (1) according to claim 1, wherein the adjustable stop device (6) comprises two branches (9,10) spaced relative to each other and respectively arranged on both sides of the room support member (4) so that said support member abuts said branches when rotated in one direction or the other with respect to the frame (2), a handling system (14, 19) of the branches being configured to change the position of the two branches and thus the stop position of the support member on said branches during its rotation in one direction or the other relative to the frame (2). 3. Vehicle (1) according to claim 2, wherein the adjustable stop device (6) comprises a body (8) and a longitudinal slide connection (L1) arranged between the frame (2) and the body, the two branches ( 9,10) being secured to the body (8) and configured to have at least two spacings (ei, e2, e3) therebetween, the longitudinal translation in one direction or the other of the body (8) opposite of the frame (2) for modifying the spacing position of the limbs (9, 10) with respect to the support piece (4). 4. Vehicle (1) according to claim 3, the adjustable stop device (6) comprising a transmission system (14) arranged between the frame (2) and the body (8), the transmission system being configured to translate longitudinally the body. 5. Vehicle (1) according to claim 4, the adjustable stop device (6) comprising a control wheel (19) configured to actuate the transmission system (14). 6. Vehicle (1) according to claim 1, wherein the adjustable stop device (6) comprises three positions for adjusting the angular stops. 7. Vehicle (1) according to claim 6, wherein the angle of rotation of the support member (4) is of the order of 40 ° to 50 ° and preferably 45 °, in the first setting position angular stops. 8. Vehicle (1) according to claim 6, wherein the angle of rotation of the support part (4) is of the order of 80 ° to 100 ° and preferably 90 °, in the second position of adjustment angular stops. 9. Vehicle (1) according to claim 6, wherein the adjustable stop device (6) is retracted into the third adjustment position of the angular stops. 10. Vehicle (1) according to claim 1, wherein the support piece (4) comprises a bearing finger (13) configured to come into contact with the adjustable stop device (6) in the various positions of angular stops. . 11. Vehicle (1) according to claim 1, the adjustable stop device (6) being disposed in front of the support part (4), under the frame (2). 12. Vehicle (1) according to claim 1, wherein the adjustable stop device (6) comprises two tabs (25,26), a circular translation link (27) arranged between the frame (2) and the two catches in such a way as to modify the position of the two catches, means for blocking the position of the catches with respect to the frame (2) and, a circular light (22) configured on the support piece (4) for receiving the two catches in so that the two ends (23,24) of the circular lumen (22) respectively abut against the two catches (25,26) during the pivoting of the support piece (4) along the pivot axis (X2) in one direction or the other. 13. Vehicle (1) according to claim 12, wherein the two tabs (25, 26) are removable from the circular light (22). 14. Vehicle (1) according to claim 1, which is a scooter or a skateboard, the frame (2) having at least one support plate, said at least one displacement piece (3) being a rear wheel arranged at the rear of said at least one support plate. 15. Vehicle (1) according to claim 1, wherein the moving part is a wheel, a ski or an ice skate.