FR2766101A1 - LINE WHEEL WITH ADJUSTABLE SPLIT - Google Patents

Abstract

The present invention relates to an in-line wheel skate, more particularly intended for the practice of so-called "aggressive" skating, consisting of a frame comprising a longitudinal lower part on which the wheels (6) are arranged and which is surmounted by a plate (4) intended for fixing the sole (3) of a shoe (2), characterized in that at least one of its wheels (6A) is associated with adjustment means (14, 15, 16, 17) of the position of its articulation axis (12) along the longitudinal axis (ww ') of the chassis, so as to allow the variation of its center distance (a) with another successive wheel (6B) , between at least two positions.

Description

LINE WHEEL WITH ADJUSTABLE SPLIT

  The present invention relates to an in-line wheel type shoe, more

  particularly intended for the practice of an "aggressive" skating.

  In known manner, such a shoe is constituted by a frame having a longitudinal lower portion on which the wheels are arranged and which is

  surmounted by a plate for fixing the sole of a shoe.

  The practice of "aggressive" skating consists of sliding on various supports, in particular on metal rails, "coping", edges of a wall, etc., by arranging its runners perpendicular to the direction of the sliding. These "copings", metal bars or sliding surfaces of the walls have different radii of curvature, thus the spacing between the two central wheels of the pad between which the sliding surface is housed.

  1 5 is not necessarily adapted to the radius of the latter.

  However, in order to perform in good conditions, these particularly perilous figures, it is necessary to have a good transverse wedging of the two central wheels of the pad relative to the sliding surface, and this regardless of its

radius of curvature.

  At present, this discipline is performed with in-line roller skates whose wheel spacing does not allow a good wedging on both sides of the sliding surface. Generally, this spacing is small and positions the central wheels of the pad on the top of the sliding surface,

thus offering a bad balance.

  This problem is also encountered with pads which have

  wheels of different diameters with respect to a given sliding surface.

  In these conditions, during a competition, some skates will favor the

  skater and others will put him at a disadvantage.

  Some known pads allowing the variation in height of the central wheels, with respect to the end wheels, and particularly adapted to certain figures ("rockering" setting), can cause during this adjustment in height, an incidence in the position in longitudinal direction of the wheels, but this modification is at most only of the order of 1 or 2 millimeters, which is not enough for the discipline mentioned above and is always linked to a

3 5 height adjustment of the wheels.

  For example, a known height adjustment of the wheels involves polygonal adjusting parts which, because of the polygonal shape of the adjustment pieces, induce a displacement in the longitudinal direction of the wheels, but this displacement is always related to the vertical adjustment, what is not desired in the execution of the slides on the various mentioned supports and, moreover, this

  displacement is very limited as mentioned above.

  To remedy these problems, it has already been proposed skids whose chassis comprise a multitude of mounting holes to vary the spacing of said wheels. This of course has the major disadvantage of weakening the frame, which is to be avoided for skates intended for the practice of skating said

  "aggressive", and particularly subject to shocks.

  The object of the present invention is to remedy these various disadvantages and to offer a pad which is particularly well adapted to the practice of this type of skating. To this end, the invention relates to an in-line roller skate, more particularly intended for the practice of so-called "aggressive" skating, constituted by a chassis comprising a longitudinal lower part on which the wheels are arranged and which is surmounted by a plate for fixing the sole of a shoe, characterized in that at least one of its wheels are associated means for adjusting the position of its axis of articulation along the longitudinal axis of the chassis, so as to allow the variation of its center distance with another successive wheel, between at least two

positions.

  The present invention also relates to the characteristics which

  will emerge in the course of the description which follows and which will have to be

  considered in isolation or in all their possible technical combinations.

  This description, given as a non-limiting example, will do better

  To understand how the invention can be realized, with reference to the accompanying drawings in which: - Figure 1 is a side view of an in-line roller skate according to the prior art, positioned on a sliding surface, - the FIG. 2 is a side view of an in-line roller skate, provided with a device for longitudinally adjusting its wheels according to the invention, arranged on the same sliding surface as in FIG. 1, FIG. 3 is a side view of the pad according to Figure 2 whose wheel spacing has been restored in a traditional manner, for a slip on the ground; FIG. 4 is a side view of a pad according to a variation of the embodiment of its device for adjusting its central wheels, allowing a better fit on another type of sliding surface, FIG. 5 is a side view. a shoe according to an alternative embodiment of its adjustment device, applied to its central wheels according to Figure 4 and extended to its end wheels to allow other types of ground skating; - Figure 6 is a schematic view of the wheel adjustment means according to Figure 5; FIG. 7 is a diagrammatic view of all the possible combinations of the adjustment means, for obtaining four different spacings from the central wheels of the pad, FIG. 8 is a view similar to FIG.

other embodiments.

  1 0 The in-line roller skate 1 designated as a whole and shown in Figure 1, comprises a shoe 2 consisting of an outer sole 3 intended to be secured to the upper plate 4 of a frame 5 on which are arranged the wheels 6A, 6B, 6C, 6D, sole from which extends a rod 7 covering the entire foot and extending towards the ankle of the

1 5 skater.

  The sole 3 of the shoe 2 is fixed on the upper plate 4 by means of fixing means known per se, for example screws or rivets. The frame 5 also comprises a lower part perpendicular to the plate 4 along its longitudinal axis and is, for example, constituted by two vertical lateral wings 10, parallel to each other, and between which are fixed the

  wheels 6A, 6B, 6C, 6D, via transverse hinge pins 12.

  As shown in FIG. 1, when performing a sliding on a sliding surface 13 with a traditional shoe, it can be seen that the wedging of its central wheels 6A, 6B on the top of said sliding surface 13 of radius r is carried out according to a base of value D, judged insufficient by the skater

  for a good balance of his skate.

  According to the invention and as shown in FIG. 2, at least one of its wheels 6A includes means 14 for adjusting the position of its articulation axis 12 along the longitudinal axis ww 'of the frame 5, so as to allow the variation of the distance of its axis 12 with that of another successive wheel 6B, between at least two positions, one corresponding to a spacing a, traditional, and the other corresponding to a center distance _. more particularly

  reserved and adapted to sliding on the sliding surface 13.

  As can be clearly seen in FIG. 2, the passage from the center distance a to the center distance b for the central wheels 6A, 6B makes it possible to obtain a seat for the same sliding surface 13 of FIG. radius r, of a value Dl greater than the

  value of the seat D obtained with a traditional skate.

  It can clearly be seen from FIG. 3 that a shoe arranged for sliding on a particular sliding surface (FIG.

  basic features for traditional floor skating.

  According to FIGS. 2 and 3, the adjustment means 14 of the spacing a, kb of two successive wheels 6A, 6B are arranged on the central wheel 6A, they could

  also be arranged on the other central wheel 6B.

  According to an alternative embodiment shown in FIG. 4, the adjustment means 14 and 15 of two successive wheels 6A, 6B are arranged on the two central wheels and make it possible to obtain a new center distance c corresponding to a new distance of even more. large central wheels 6A, 6B, providing a possibility of sitting on the sliding surface 13, always of the same radius r of a value

  D2 higher than previous values D or DI.

  Thus, according to this same example of FIG. 4, it is possible to obtain a

  spacing a or b as in the example of Figure 3, or c_.

  The embodiment of FIG. 5 differs essentially from the preceding ones in that adjustment means 14, 15, 16, 17 are arranged on the two central wheels 6A, 6B, as well as on the end wheels 6C, 6D, so as to be able to vary the spacings of all the wheels between them, this is how the end wheels 6C and 6D may have a variable spacing of a value

  E and fL, respectively, to allow other types of ground skating.

  According to any one of the situations described and corresponding to FIGS. 2, 3, 4 or 5, the adjustment means of each of the wheels 6A, 6B, 6C, 6D, whatever it may be, consist of an insert disposed in a symmetrical longitudinal housing 14a, 15a, 16a, 17a of corresponding shape and axis ww ', formed on each of the side walls 10 forming the lower part of the frame 5. Each of the inserts 14, 15, 16, 17 presents on its longitudinal axis ww ', an eccentric hole 18 with respect to its vertical median axis zz', intended for the passage of a wheel axis 12 6A, 6B, 6C, 6D, so that each insert 14, 15, 16 or 17 may allow two different longitudinal positions of such a wheel, either by turning 180 on itself relative to its respective fixed housing 14a, a, 16a, 17a, or by crossing, without turning two successive inserts

  arranged symmetrically relative to each other in their respective housing.

  In this case, the eccentric passage hole 18 of each of the inserts 14, 15, 16

or 17 is circular.

  The table shown in FIG. 7 shows all the possibilities offered to a skater for a four-wheel chassis 6A, 6B, 6C, 6D, each of whose lower sidewalls 10 of said chassis comprises four identical and symmetrical housings 14a, 15a. , 16a, 17a in which are arranged four corresponding inserts 14, 15, 16, 17, two of which 14, 15 have holes 18 eccentric identically according to a given first value X, and the other two 16, 17 comprise holes 18 eccentric identically according to a second value Y given, different from the previous X. This makes it possible to obtain four adjustment positions I, II, III, IV of the two central wheels 6A, 6B, or by reversing two central inserts 14, 15 eccentric according to the first value X offering two adjustment positions I, II, or by reversing the two end inserts 16, 17 eccentric according to the second value Y providing ux other adjustment positions III, IV different from the previous ones I, II, the other inserts

  being used each time at the ends.

  Intermediate adjustment positions at positions I, II, III and IV can also be obtained by using at the central wheels 6A, 6B, inserts comprising both types of X and Y eccentricity. According to one embodiment ( not shown), the adjustment means of each wheel 6A, 6B, 6C, 6D whatever it is, are constituted by an insert 1 5 disposed in a symmetrical longitudinal housing of corresponding shape, formed on each of the side walls 40 forming the lower part of the frame, each of the inserts having on its longitudinal axis ww 'an equally symmetrical light, oblong in the longitudinal direction, intended for the passage of a wheel axis 12, so that each insert can offer a multiplicity 20 of longitudinal positions of the latter, by translation of the axis of the wheel

  in the oblong light of the insert.

  According to an embodiment not shown, the means for adjusting each of the wheels, whatever it may be, consist of symmetrical oblong slots arranged facing a longitudinal axis on each of the side walls of the frame, to allow the passage of a wheel axle and the adjustment thereof in a multiplicity of longitudinal positions by

  translation in said oblong lights.

  By way of nonlimiting examples referring to the inserts described and referring to FIGS. 2 to 7, the eccentricity value of the holes 18 of the inserts 14, 15 and 16, 17 is respectively Y = 4 mm and X = 7 mm. With such eccentricity values, the invention thus provides a possibility of adjusting the center-axle spacing of 90 to 104 mm instead of the usual center distance of mm. Of course, these values are given by way of non-limiting example and can be chosen to provide even more distance values.

more important.

Claims (10)

  1. In-line roller skate, more particularly intended for the practice of so-called "aggressive" skating, consisting of a chassis comprising a longitudinal lower part on which the wheels (6) are arranged and which is surmounted by a plate (4) for fixing the sole (3) of a shoe (2), characterized in that at least one of its wheels (6A) are associated adjustment means (14, 15, 16 17) of the position of its hinge axis (12) along the longitudinal axis (ww ') of the frame, so as to allow the variation of its center distance (a) with another wheel (6B) successive, at least two positions.   2. Pad according to claim 1, characterized in that the adjusting means (14) of the spacing (a, b) of two successive wheels (6A, 6B) are associated with at least one of the central wheels (6A).   1 5 3. Pad according to claim 1, characterized in that the adjusting means (14, 15) of the spacing between two successive wheels (6A, 6B) are associated with at least two central wheels (6A, 6B).   4. Pad according to claim 1, characterized in that the adjusting means (14, 15, 16, 17) are associated with the two central wheels (6A, 6B) and the end wheels (6C, 6D), in order to be able to vary the distances between all wheels between them.   5. Pad according to one of the preceding claims, characterized in that the   adjustment means (14, 15, 16, 17) of each of the wheels (6A, 6B, 6C, 6D) consist of an insert disposed in a symmetrical longitudinal housing (14a, 15a, 16a, 17a) of corresponding shape , formed on each of the side walls (10) forming the lower part of the frame (5), each of the inserts (14, 15, 16, 17) having along its longitudinal axis (ww '), an eccentric hole (18) relative to at its vertical median axis (zz '), intended for the passage of a wheel axle (12) (6A, 6B, 6C, 6D), so that each insert (14, 15, 16 or 17) can offer two positions 30 different longitudinal of the latter, either by turning on itself 180, or by crossing two successive inserts arranged symmetrically   relative to each other in their respective homes.   6. Shoe according to claim 5, characterized in that the passage hole of   one of the wheels in the insert is circular.   3 5 7. Shoe according to claim 5, characterized in that the eccentric passage hole of each of the inserts (14, 15, 16 or 17) is oblong in the longitudinal direction.   8. Shoe according to one of claims 1 to 7, characterized in that   of a four-wheel chassis (6A, 6B, 6C, 6D), each of the lower side walls (10) thereof comprises four identical and symmetrical housings (14a, 15a, 16a, 17a) in which four inserts are arranged corresponding (14, 16, 17), two of which (14, 15) have holes (18) eccentrically identical in a first value (X) given, and the other two (16, 17). have holes (18) eccentrically identical to a second value (Y) given, different from the previous one (X), so as to obtain at least four adjustment positions (I, II, III, IV) of the two central wheels (6A, 6B), either by reversing two eccentric inserts (14, 15) according to the first value (X), or by reversing two central inserts (16, 17).   1 0 eccentric according to the second value (Y) or according to different values (X, Y).   9. Slider according to one of claims 1 to 4, characterized in that the means   each of the wheels (6A, 6B, 6C, 6D) are constituted by an insert disposed in a symmetrical longitudinal recess of corresponding shape, formed on each of the side walls (10) forming the lower part of the frame, each of inserts having on its longitudinal axis (ww ') an oblong slot in the longitudinal direction, intended for the passage of a wheel axis (12), so that each insert can offer a multiplicity of longitudinal positions of the latter, by translation of the axis of the wheel in the oblong light of the insert.   2 0 10. Slider according to one of claims 1 to 4, characterized in that the   adjustment means of each of the wheels are constituted by symmetrical oblong slots formed opposite each other, directly on each of the side walls of the chassis, to allow the passage of a wheel axle and the adjustment thereof in a multiplicity of longitudinal positions by translation in Said oblong lights.