EP2332621B1 - Roller skate binding - Google Patents

Description

The present invention relates to a roller for example for sports activities or urban travel.

The roller generally consists of a frame on which wheels are mounted, in particular in line, a plate being fixed on the top of the frame, this plate itself supporting a footwear element; a liner is housed in this footwear element, this liner for receiving the foot of the user. The footwear element consists in particular of a rear quarter receiving the back of the bootie, an upper stem receiving the lower part of a leg and a front stem receiving the front part of the bootie.

According to a first design of roller, this boot is directly integrated with the footwear element; this has the disadvantage of having to provide a pair of complementary shoes to move once the roller removed.

According to another design of the roller, there is provided a specific removable boot, it can be removed from the footwear element and used as a shoe for travel once the roller removed. Thus, it is not necessary to provide a pair of complementary shoes. However, this has the disadvantage that the shoe, used as a shoe, is not always matched to dress especially when the user shoes rollers for urban travel, it can for example be dressed in street clothes such as a suit, while the bootie generally has the appearance of a sports shoe.

It is known from the patent application US 2007/0158929 A1 a snowboard shoe attachment system. The fastening system includes a footwear element that has a back quarter, an upper leg and a front leg, the upper leg is mounted to pivoting backwards.

In addition, a filamentary piece is assembled at its first lower end, the lateral side of a support plate fixed above the snowboard and, at its second upper end, a system for tensioning said filiform piece. This power system is arranged on the upper rod. A first position of the power system makes it possible to energize the filiform piece so as to block the pivoting towards the rear of the upper rod. On the contrary, a second position of the tensioning system makes it possible to release the filiform piece so as to allow pivoting towards the rear of the upper rod. In addition, a front strap and a rear strap are arranged between the front rod and the support plate. These front and rear straps are manually adjustable in length so as to be able to press the front rod against the instep and the front part of the snowboard boot, arranged inside the fastening system.

The document US 6948723 describes a roller according to the preamble of claim 1.

The present invention aims to overcome the disadvantages of current rollers by providing a roller which allows the reception of shoes of different models, for example sports shoes or shoes, able to lodge in the footwear element. Another object of the present invention is to implement a roller facilitating the introduction of the shoe into the footwear element when fixing the roller or, conversely, its removal. Another object of the present invention is to implement a roller whose design makes it possible to limit its bulk when the roller is loosened, this in order to facilitate for example its storage in a bag or the like and to transport it with ease.

The roller object of the present invention has a shoe attachment system which has characteristics comparable to those described below and known from the document US 2007/0158929 A1 in the field of snowboarding. However, the roller object of the present The invention aims to optimize the establishment and maintenance of the shoe inside the footwear element when the fastening system of the shoe is put in place.

As such, the invention relates to a roller comprising in particular a frame, a support plate fixed above the frame and a footwear element arranged above the support plate. This roller may for example be of the inline roller type that is to say provided with wheels mounted in line one behind the other on the chassis. However, it can be implemented on rollers called quads provided with two pairs of wheels arranged on axles at the front and rear of the chassis.

Preferably, the frame and the support plate are two separate parts fixed together; it can however be envisaged that said frame and the support plate are constituted by a single piece for example obtained by molding.

According to the invention, the footwear element comprises a rear quarter in which is housed the rear part of a shoe, that is to say the heel of the shoe, an upper stem receiving the lower part of a leg and a front rod in which is housed the front part of a shoe.

According to the invention, the upper upper of the footwear element is mounted to pivot rearwardly, directly or indirectly, with respect to the support plate. Indeed, this pivotal mounting can be carried out directly with respect to the support plate; however, the support plate being itself fixed above the frame or even constituted by the same part as the frame, one can consider the pivotal mounting of the upper rod on the frame. According to another variant, it could also provide a pivotal mounting of the upper rod relative to the rear quarter itself fixed on the support plate.

According to the invention, the roller comprises at least one filamentary piece arranged laterally on one of the two lateral sides of the upper rod. The lower end of this at least one filamentary piece is connected, directly or indirectly, with respect to the respective lateral side of the support plate. Indeed, the assembly in connection with the lower end of the filiform piece is made directly with respect to the plate; however, for reasons similar to those mentioned above, it could also provide a connection assembly relative to the chassis. According to another variant, it is possible to envisage a connection assembly with respect to the front stem of the footwear element, fixed on the support plate.

In addition, according to the invention, the roller comprises a system for tensioning said at least one filamentary piece, this tensioning system being arranged between the upper stem of the footwear element and the upper end of said less a filiform piece. In a first position of the power system, it allows the power of the at least one filiform piece; this power up locks the pivoting back of the upper rod. Conversely, in a second position of the power system, it releases the at least one filiform piece; this relaxed position allows pivoting back of the upper rod.

Furthermore, according to the invention, the front rod is provided with a veneer device against the instep of a shoe. This device for plating the front rod against the instep may be independent or subject to a front stem plating device against the front top of the shoe, depending on whether the front stem is made of one or more rooms.

This veneer against the instep of a shoe comprises a strap, optionally passing and sliding through two orifices respectively arranged on the lateral sides of the plate of support or chassis, the two ends of this strap being secured to the upper rod so that the tilting back of the upper rod causes relaxation of the strap while a tilting forward of the upper rod causes tightening the strap and plating the front rod against the instep.

Thus, it is understood that when the upper rod is pivoted or tilted backwards, it facilitates the removal or introduction of the shoe vis-à-vis the roller. In addition, when tilting back of the upper rod, the strap has the advantage of relaxing which promotes the release of the front rod and thus, removing the shoe off the roller. On the contrary, when the shoe is introduced into the footwear element, and the upper rod is pivoted forwards in a quasi-vertical position, according to which it marries the lower part of the leg, the installation of the Powering system allows blocking of the upper rod and thus the use of the roller in normal conditions. Similarly, when the shoe is placed in the roller, the forward pivoting of the upper rod, in the use position, allows a self-tightening of the strap which plate the front rod against the instep of the shoe.

Moreover, when the upper rod is pivoted towards the rear, and the roller is loosened, said roller then has a longitudinal shape favoring the positioning of the two rollers, left and right, in this longitudinal position, one to next to each other, and so their storage in a bag or a case to wear them for example on the back during travel. Of course, once the roller off, it is also possible to pivot the upper rod forward so as to fold against the front rod and the plate, which also reduces the size of said roller during storage eventual, according to a variant.

Of course, the at least one filamentary piece is not extensible or is not very extensible to ensure a tension and thus a proper locking of the pivoting rearward of the upper rod. For example, it is possible to design said at least one filiform piece in various metallic materials such as steel or composites such as an elastomer having a high rigidity.

Preferably and nonlimitingly, two filiform parts are arranged laterally respectively on each side of the upper rod. The lower ends of these filiform parts are mounted in connection, directly or indirectly, with respect to the respective lateral sides of the support plate. As previously stated, this connection assembly can be made with respect to the frame on which is fixed the support plate or with respect to the rod before itself fixed on the support plate.

Preferably, the tensioning system of the two filiform parts is arranged between the rear face of the upper rod and the upper ends of the two filiform parts. According to this embodiment, by means of two filiform parts or according to any other mode, and in particular when a single filamentary piece is provided, it is possible to provide a different positioning of the tensioning system, for example on one of the sides. of the upper rod, without departing from the scope of the present invention.

According to a design mode, the power system is composed of a control part pivotally mounted along a first axis relative to the upper rod. In addition, the upper end of the at least one filamentary piece is pivotally mounted along a second axis relative to said control piece. Thus, the pivoting of the control part in a first position makes it possible to relax the at least one filiform piece while the pivoting in the second position makes it possible to tension the said at least one filiform piece, which blocks the pivoting towards the rear of the upper stem. According to the mode in which the control part is arranged between the rear face of the upper rod and the upper ends of two filiform parts, the first axis and the second axis are arranged transversely, the said upper ends of the two filiform parts being pivotally mounted relative to the respective lateral sides of the control part.

However, it is possible, according to one variant, to provide that the roller object of the invention is equipped with a single cable constituting the two filiform parts. In this case, the ends of the cable are mounted, preferably in pivot connection relative to the respective lateral sides of the support plate, or even the frame or the front rod secured to said support plate. In addition, the cable passes through the control member, which provides pivotal mounting of the cable relative to the control part. For this, the control part has a hole opening transversely on its lateral sides, ensuring the passage of said cable.

Preferably, the assembly in connection with the lower end of the at least one filamentary piece with respect to the respective lateral side of the support plate, or even the frame or the front rod, is of the pivot link type. However, it is possible to envisage equivalent bonds such as, for example, a ball joint without departing from the scope of the present invention. Similarly, especially when the at least one filamentary piece is of the cable type having a certain flexibility, but of little elasticity, it could be envisaged a recess connection with respect to the respective lateral side of the support plate, or even of the frame or the front rod.

Other variants of roller tensioning system are conceivable without departing from the scope of the present invention. Indeed, according to one conceivable variant, the tensioning system consists of a male and female coupling device of which a first part, for example male of the hook type, is assembled to the upper rod and a second part, by female example of the loop type, is assembled at the upper end of the at least one filiform piece. The detached position of the male part and the female part makes it possible to keep relaxed the at least one filiform piece which makes it possible to pivot backwards from the upper rod, while the attachment position of the male part and the female part allows the power of the at least one filamentary piece, blocking the pivoting rearward of the upper rod.

According to the invention, the upper rod is provided with a clamping device around the leg making it possible to keep said upper rod properly attached relative to the lower leg during use of the roller, that is to say when the roller is shod.

Preferably, the strap constituting the instep-cladding device comprises a system for adjusting its length, such as a tightening or adjustment loop, which makes it possible to adjust it at the moment of rotation. first use, depending on the type of shoe used during roller skating.

The invention also relates to a set consisting of a pair of roller according to the present invention and a case for receiving said pair of roller, said case being of shape and dimensions adapted to receive the two rollers with their upper rod pivoted backwards relative to the support plate, the two rollers being pressed against each other.

The invention also relates to an assembly consisting of a pair of roller according to the present invention and a bag, in particular a sports bag, comprising a case or a pocket for storing said pair of roller, the case or bag being of shape and dimensions adapted to receive the two rollers with their upper rod pivoted rearwardly relative to the support plate, the two rollers being pressed against each other.

According to a variant of the aforementioned assembly, the bag comprises two cases or two storage pockets of the pair of roller object of the the present invention, each case or pouch being shaped and sized to receive a roller with its upper rod rotated rearwardly relative to the support plate.

• la figure 1 illustre un roller selon la présente invention dans une position d'utilisation, le roller étant chaussé par un utilisateur ;
• la figure 2 illustre un roller objet de l'invention dans une position d'utilisation, cette figure représentant en pointillés la procédure de déblocage de la tige supérieure pour autoriser son pivotement ;
• la figure 3 représente le roller dans une position permettant le retrait d'une chaussure voire dans son mode préférentiel de rangement ;
• la figure 4 illustre le dispositif de placage de la tige avant contre le cou-de-pied, sur le roller objet de l'invention.

Other features of the present invention will appear on reading the following description based on figures in which:

• the figure 1 illustrates a roller according to the present invention in a position of use, the roller being shod by a user;
• the figure 2 illustrates a roller object of the invention in a position of use, this figure dashed the unlocking procedure of the upper rod to allow its pivoting;
• the figure 3 represents the roller in a position allowing the withdrawal of a shoe or in its preferred mode of storage;
• the figure 4 illustrates the device for plating the front rod against the instep on the roller object of the invention.

The roller 1 object of the present invention is conventionally composed of a frame 2, wheels 3, a support plate 4 and a footwear element 5. On Figures 1 to 3 four wheels 3 are mounted in line, pivotally, on the frame 2. Other variants are however conceivable as for example three wheels arranged in line or two pairs of wheels mounted axially pivotally relative to the frame 2, one of the pairs of wheels being disposed at the front of the frame 2 and the other at the rear of the latter.

On the Figures 1 to 4 it is found that the support plate 4 is fixed on the top of the frame 2 by fastening means 6 for example of the screw-nut type or the like. Other variants are conceivable, such as the design of a frame 2 and a support plate 4 constituted by means of a single piece.

The footwear element 5 is arranged on the top of the support plate 4 as illustrated on the Figures 1 to 4 . This footwear element 5 consists of a rear quarter 7 allowing the reception of the heel 8 of a shoe 9, an upper rod 10 allowing the reception of the lower part 11 of a leg 12, this upper rod 10 encircling by example the bottom of the calf and the bottom of the tibia. In addition, the footwear element 5 comprises a front rod 13 which receives the front portion 14 and the instep 15 of the shoe 9. figure 1 that the rear quarter 7 comprises a heel 16 receiving the heel 8 of the shoe 9, the heel 16 being secured at its lateral ends 17 to the lateral sides 18 of the support plate 4. However, other variants are possible. For example, on the figure 2 , it is found that the heel 16 has its lateral ends 17 secured to the lateral sides 19 of the upper rod 10.

On the Figures 1 to 3 , it is found that the front rod 13 is composed of a tongue 20 which extends from the front portion 14 of the shoe 9 to at least the instep 15 of this shoe 9. Preferably, this tongue 20 extends upward on the lower front side of the leg. Other variants are conceivable and it is conceivable that the front rod 13 consists of several parts, including two parts, one covering the front portion 14 of the shoe 9 and the other covering at least the neck of foot 15 of this shoe.

As illustrated on Figures 1 to 4 , the upper rod 10 is pivotally mounted rearwardly relative to the plate 4. For this, the lateral sides 19 of the upper rod 10, having the shape of a longitudinal branch, are mounted at their lower end 21 in pivot connection 22 relative to the lateral sides 18 of the support plate 4. Of course, the plate 4 being secured to the frame 2, one could consider this connection 22 directly at the frame 2, or vis-à-vis rear quarter 7, according to the design of these elements on the roller, without departing from the scope of the invention. Thus, the upper rod 10 can move from a more or less vertical position illustrated in FIGS. figures 1 , 2 and 4 at a rearward pivoted position, relative to the support plate 4 and to the frame 2 more or less horizontally as shown in FIG. figure 3 .

The roller 1 comprises a power-up system 23 as illustrated in FIGS. Figures 1 to 4 . This power-up system 23 comprises a control part 24 of which a first fixed part 25 is fastened to the upper end 26 of the rear face of the upper rod 10 and a second mobile part 27 is pivotally mounted by means of a first transverse pivot axis 28a with respect to the first fixed part 25. Of course, design variants of this control part are conceivable; it could in particular provide that this control part 24 comprises only a movable portion 27 hinged to pivot directly vis-à-vis the upper end 26 of the rear face of the upper rod. An arrangement of this control member 24 could also be provided at other locations on the upper rod 10, for example on one of the lateral sides of the upper contour 10a.

We see on Figures 1 to 4 that the power system 23 comprises a cable 29 whose ends 30 are pivotally mounted along pivot axes 31 with respect to the lateral sides 18 of the support plate 4. The pivot axes 31 on the lateral sides can be coaxial . However, it is possible to provide different positions of these pivot axes 31 on each of the lateral sides 18. Preferably, the pivot axis 31 on the inner lateral side is disposed substantially in the central part of the support plate 4, while the pivot axis 31 disposed on the outer lateral side is disposed substantially in the front portion on the support plate 4. This cable 29 passes through an orifice 32 disposed transversely on the part mobile 27 of the control room 24, as illustrated on the Figures 1 to 4 . This assembly between the cable 29 and the movable part 27 ensures a pivoting between the two parts along a second axis more or less transverse to said control part 24. As can be seen from FIG. figure 3 , the cable 29 has two portions 29a, 29b disposed on each side of the roller 1. It would therefore be possible to provide two independent parts, preferably having a wire form or the like, pivotally mounted at their two ends respectively screw with respect to the support plate 4, or even of the frame 2, and of the mobile part 27 of the control part 24. According to a variant, a single filamentary piece could be arranged between the mobile part 27 of the control part 24 and the support plate 4, which would be arranged on one of the lateral sides of the roller. This or these threadlike parts may be more or less rigid or consist of cables.

As can be seen through the Figures 1 to 4 when the movable portion 27 of the control part is pivoted upwards, the portions 29a, 29b of the cable 29 are energized, as illustrated figures 1 , 2 and 4 , which blocks the pivoting of the upper rod 10 to the rear, the latter remaining accordingly in a more or less vertical position. On the contrary, when the movable portion 27 of the control part 24 pivots about its axis 28a, as shown in lines drawn on the figure 2 even in full lines on the figure 3 , the portions 29a, 29b of the cable 29 are loose and allow the rearward pivoting of the upper rod 10 in a more or less horizontal position, as illustrated in FIG. figure 3 .

It is understood that when the upper rod 10 is in its more or less vertical position, the shoe is properly maintained when the various fastening systems are put in place, as illustrated in FIG. figure 1 , or difficult to remove when fastening systems are defeated, as shown on the figure 2 , vis-à-vis the roller 1, while when the upper rod 10 is in a more or less horizontal position illustrated in figure 3 , the user can easily release his shoe from the roller. In addition, this horizontal position of the upper rod 10, illustrated in FIG. figure 3 , present for interest to reduce the size of the roller 1 during storage. Thus, the left and right rollers arranged in this way can be placed next to each other and stored in a case or a bag provided for this purpose, or simply in a sports bag or other. A reduction in the size of the roller 1 in its storage mode is also possible by folding the upper rod 10 forward, bearing against the front rod 13 and the support plate 4.

We see on Figures 1 to 4 that the upper rod 10 of the roller 1 comprises a clamping device 33 for maintaining the upper contour 10a clamped around the bottom of the leg. Such a clamping device 33 is well known on traditional rollers.

We see on Figures 1 to 3 that the front rod 13 comprises a first plating device 34 of the front portion 13a of said front rod, against the front top 14 of the shoe 9. Such a plating device consists in particular of a strap 34a provided with a system adjustment, for example adjustment loop type 34b, for adjusting the length of said strap 34a and thus the plating force of the front portion 13a on the front portion 14 of the shoe.

Similarly, it can be seen that the roller 1 comprises a second device 35 for plating the central portion 13b of the front rod 13 against the instep 15 of the shoe 9 as illustrated in FIG. figure 1 . Such a plating device 35 consists in particular of a strap 36 and a system for adjusting the length of said strap 36, for example of the adjustment buckle type, so as to adjust the length of this strap 36 and thus the plating force of the central portion 13b on the instep 15 of the shoe 9 depending on the shoe used.

As illustrated in figure 4 , the strap 36 is extended by portions 36b whose ends 36c are secured preferably in the upper part of the upper rod 10. In addition, this strap 36 passes and slides through slots 37 arranged on the lateral sides 18 of the plate support 4 or on the lateral sides of the frame 2. Thus, once the adjustment system set up for a defined type of shoe, the simple pivoting of the upper rod 10 rearwardly relaxes the strap 36 and loosen the central portion 13b of the front rod 13 to remove the shoe 9. On the contrary, when the upper rod 10 is pivoted in a near vertical position, the shoe 9 is previously arranged on the support plate 4, the strap 36 ensures an automatic clamping for pressing the central portion 13b of the front rod 13 on the instep 15 of the shoe 9. According to this design, it is therefore necessary to adjust the length r of the strap 36 only when the user changes shoes for his movements by means of rollers, the simple pivoting of the upper rod 10 sufficient to loosen or conversely tighten the strap 36.

Other features could be envisaged without departing from the scope of the present invention. As such, it could include a control part 24 on the power system 23 composed of a male part and a female part arranged to be snapped against each other, even secured against each other for example by means of a loop-hook system, the latching or securing position between the male part and the female part ensuring the tensioning of the cable more generally one or two filiform parts, according to the design of said roller and the assembly position of this male part with this female part on the upper rod 10. It will be understood that one of the two male or female parts is under these conditions subject to the upper rod 10, by example at its rear face or one of the lateral sides of the upper contour 10a of the upper rod 10.

When one or two filiform pieces will be arranged on the roller, replacing the cable, they will preferably be flexible. However, rigid filiform parts could be envisaged, even in the form of thin plates, for example in the form of a lamella.

The present invention will find its application among manufacturers and traders of sports articles. As such, the pairs of roller 1 objects of the invention can be sold in traditional packaging; it can however be envisaged that these roller pairs are marketed in storage cases of shape and size specially adapted to the shape of the two rollers 1, left and right, arranged as illustrated on the figure 3 , and pressed against each other. One could even consider their marketing with a bag including a sports bag or the like, larger volume to allow the receipt of other items, said bag comprising a case or a storage pocket of the two rollers left and right, arranged in the illustrated position in figure 3 and pressed against each other, or even two cases or individual storage pockets of shape and dimension adapted to receive respectively one of rollers 1, left and right, objects of the invention, arranged in said position illustrated in FIG. figure 3 .

Claims (15)

1. A rollerblade (1) comprising a frame (2), a supporting plate (4) attached above the frame and a footwear member (5) laid out above the supporting plate, the footwear member comprising a rear quarter (7), an upper rod (10) and a front rod (13), the upper rod (10) being pivotally mounted rearwards, either directly or indirectly, relatively to the supporting plate, said rollerblade comprising at least one wire-shaped part (29) positioned sideways on one of the two sides of the upper rod, characterized in that the lower end (30) of said at least one wire-shaped part (29) is mounted in an either direct or indirect connection relatively to the respective lateral side (18) of the supporting plate and, a system (23) for tensioning said at least one wire-shaped part is laid out between the upper rod and the upper end of said at least one wire-shaped part for, in a first position, tensioning said at least one wire-shaped part so as to block the rearward pivoting of the upper rod and, in a second position, releasing said at least one wire-shaped part so as to allow rearward pivoting of the upper rod, and in that the front rod (13) is provided with a flattening device (35) against the instep (15) of a shoe (9) which comprises a strap (36) comprising two ends (36c) subject to the upper rod (10) so that rearward pivoting of the upper rod causes slackening of the strap while forward pivoting of the upper rod causes tightening of the strap and flattening of the front rod against the instep.
2. The rollerblade (1) according to claim 1, wherein two wire-shaped parts (29a, 29b) are positioned sideways respectively on each side of the upper rod (10), the lower ends (30) of said wire-shaped parts being mounted in direct or indirect connection, relatively to the respective lateral sides (18) of the supporting plate.
3. The rollerblade (1) according to claim 2, wherein the system (23) for tensioning both wire-shaped parts (29a, 29b) is laid out between the rear face (26) of the upper rod (10) and the upper ends of said wire-shaped parts (29a, 29b).
4. The rollerblade (1) according to claim 1, wherein the tensioning system (23) consists of a control part (24) pivotally mounted about a first axis (28a) relatively to the upper rod, the upper end of said at least one wire-shaped part (29) being pivotally mounted about a second axis (28b) relatively to said control part.
5. The rollerblade (1) according to claims 3 and 4, wherein the first axis (28a) and the second axis (28b) are transverse, the upper ends of both wire-shaped parts (29a, 29b) being pivotally mounted relatively to the respective lateral sides of the control part (24).
6. The rollerblade (1) according to claim 5, wherein a single cable (29) forms said both wire-shaped parts, the ends (30) of the cable being mounted in connection relatively to the respective lateral sides (18) of the supporting plate (4), said cable transversely passing through the control part (24).
7. The rollerblade (1) according to claim 5, wherein the lower ends (30) of both wire-shaped parts (29a, 29b) are mounted in a pivot connection relatively to the respective lateral sides (18) of the supporting plate (4).
8. The rollerblade (1) according to claim 1, wherein the tensioning system (23) consists of a male and female attachment device, one portion of which is assembled to the upper end (10) and a second portion of which is assembled to the upper end of said at least one wire-shaped part (29), attachment of the male portion and of the female portion allowing said tensioning.
9. The rollerblade (1) according to one of claims 1 to 8, wherein the upper rod (10) is provided with a first tightening device (33) around a leg bottom.
10. The rollerblade (1) according to one of claims 1 to 9, wherein the front rod (13) is provided with a first flattening device (34) against the front topside (14) of a shoe (9).
11. The rollerblade (1) according to claim 1, wherein the strap (36) comprises a system for adjusting its length.
12. The rollerblade (1) according to anyone of claims 1 to 11, characterized in that the strap (36) passes through two orifices (37) respectively laid out either directly or indirectly on the lateral sides (18) of the supporting plate (4).
13. An assembly consisting of a pair of rollerblades (1) according to anyone of claims 1 to 12 and of a case for storing away the pair of rollerblades (1), the shape and the dimensions of the case being laid out for receiving both rollerblades with their upper rod (10) pivoted rearwards, said both rollerblades (1) being flattened against each other.
14. An assembly consisting of a pair of rollerblades (1) according to anyone of claims 1 to 12 and of a bag comprising a pocket for storing away the pair of rollerblades (1), the storage pocket being of suitable shape and dimensions for receiving both rollerblades (1) with their upper rod (10) pivoted rearwards, said both rollerblades (1) being flattened against each other.
15. An assembly consisting of a pair of rollerblades (1) according to anyone of claims 1 to 12 and of a bag comprising two pockets for storing away the pair of rollerblades (1), each pocket being of a suitable shape and dimension for receiving one rollerblade (1) with its upper rod (10) pivoted rearwards.

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