Multi-functional system for pair of roller ski

Abstract

The invention relates to a multifunction system (M) for a pair of roller ski (S1, S2), comprising a first connecting portion (1) and a second connecting portion (2), and a coupling (3) configured to releasably connect the first roller ski (S1) to the second roller ski (S2) along an axis parallel to the axis of rotation of the wheels (R) of the roller ski (S1, S2), and a coupler (3) for forming a stable assembly and applying a fixed distance between the first connection part (1) and the second connection part (2), the coupler (3) comprising a first spacer end (311), a second spacer end (312) and a spacer body (313). At least one of the first spacer end portion (311) and the second spacer end portion (312) is configured to releasably engage with a corresponding connection portion (1, 2).

Description

Technical Field

[0001] This invention relates to the field of roller ski technology, and more particularly to a multifunctional system for a pair of roller skis. Background Technology

[0002] Roller skis are devices designed for wear by users to enable them to move on snowless surfaces and rediscover the joy of skiing.

[0003] Non-motorized roller skis exist, allowing users to move in the same manner as when using cross-country or touring skis, i.e., by reproducing the same movements. Motorized roller skis also exist, enabling the reproduction of the pleasure of downhill skiing. For example, French patent application FR3142910 discloses a roller ski with a driven and pivotable front wheel. Prior art is described in documents EP0992263A1 and US3777956A.

[0004] However, inline skis have some drawbacks. Users may find them difficult to put on, especially when they cannot sit down. Furthermore, their weight and size can make them difficult to lift or transport. These problems may be more pronounced when the user is a child.

[0005] Therefore, the existing solutions for roller skis still have shortcomings and there is room for improvement. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned problems, in particular by proposing a multifunctional system for a pair of roller skis.

[0007] Therefore, the present invention pertains to a multifunctional system for a pair of roller skis, characterized in that the system comprises: a first connecting portion fixed to a first roller ski in the pair of roller skis; a second connecting portion fixed to a second roller ski in the pair of roller skis, wherein the first connecting portion and the second connecting portion are configured to be arranged opposite to each other on each roller ski of the pair of roller skis when the roller skis are aligned side by side on a flat surface; and a connector configured to connect the first roller ski along an axis parallel to the wheel rotation axis of the pair of roller skis. A board is releasably connected to a second roller ski to form a stable assembly and apply a fixed distance between a first connection and a second connection. The connector includes a spacer having a first spacer end, a second spacer end, and a spacer body. The first spacer end is configured to engage with the first connection, the second spacer end is configured to engage with the second connection, and the spacer body extends between the first spacer end and the second spacer end. At least one of the first spacer end and the second spacer end is configured to releasably engage with the corresponding connection.

[0008] As described in the introduction, there are roller skis that include steering wheels, such as roller skis with a pivotable front wheel. In this case, for the purposes of this invention, "the axis of rotation of the wheels of the pair of roller skis" refers to the axis of rotation of the wheels defined in a stationary state (i.e., when the axes of rotation of the front and rear wheels of a roller ski are parallel to each other).

[0009] It should be understood that the multifunctional system, which forms a stable component with the pair of roller skis, makes it particularly easier for the user to put on the roller skis, even when the user is unable to sit down.

[0010] It should also be understood that the formation of this stabilizing component makes it easier for users to transport the pair of roller skis.

[0011] It should also be understood that, according to a variant not shown, the multi-functional system may include a latch at each releasable engagement, allowing the user to lock the multi-functional system with a key after the stabilizing components are formed. In this case, the multi-functional system also has an anti-theft function. It should be understood that the multi-functional system (e.g., the spacer body) preferably includes an attachment system (e.g., a ring) that allows the multi-functional system to be attached to street infrastructure (e.g., a lamppost or bicycle rack) via, for example, a cable.

[0012] According to a particular embodiment, a gripping member is formed on the spacer body so that the user can grip the spacer body, thereby lifting the pair of roller skis as a whole unit and enabling the pair of roller skis to be transported when the user is not wearing roller skis and the spacer is engaged with the first and second connecting parts.

[0013] It should be understood that the gripping mechanism makes it easier for the user to grip the spacer body, thereby lifting the pair of roller skis.

[0014] It should also be understood that the gripping member preferably has an ergonomic three-dimensional shape designed to accommodate the user's hand or a portion thereof. It should also be understood that the gripping member is preferably configured to have a length greater than the width of the user's hand (e.g., a length of 12 cm) to facilitate the user's gripping of the gripping member.

[0015] According to a particular embodiment, the first connecting portion and the second connecting portion are respectively integrated into the body of the corresponding roller ski in the pair of roller skis, or integrated into a fastening device configured to be fastened to the body of the corresponding roller ski in the pair of roller skis.

[0016] Preferably, each connector is integrated into the body of the corresponding roller ski. It should be understood that various technical solutions can be used to obtain a roller ski body with connectors integrated therein, such as screwing, one-piece components, riveting, welding, or bonding.

[0017] Furthermore, in one variant, the first and second connecting portions can each be integrated into a corresponding fastening device configured to fasten to the body of the corresponding roller ski, thereby allowing the multi-functional system to be adapted to existing roller skis through retrofit installation. The fastening device can be fastened to the corresponding roller ski by, for example, welding, bonding, screwing, or clamping (e.g., clamping with two jaws in a vise-like manner).

[0018] According to a particular embodiment, one of the first connecting portion, the second connecting portion, and the first spacer end and the second spacer end includes a T-groove; and the other of the first connecting portion, the second connecting portion, and the first spacer end and the second spacer end includes an extension, the extension including a connecting portion and a distal end located outside the connecting portion, the cross-section of the distal end being larger than the cross-section of the connecting portion, and each releasable engagement is achieved by engaging the corresponding T-groove with the extension, by sliding the connecting portion in the portion of the T-groove corresponding to the T-bar, and by sliding the distal end in the portion of the T-groove corresponding to the T-crossbar.

[0019] This configuration enables a releasable engagement between the spacer end and the connector through shape complementarity and sliding.

[0020] It should be understood that other technical solutions can be used to achieve releasable engagement, such as using magnets, using rings and hooks, or using resilient snap-fit.

[0021] According to a particular embodiment, the bearing is arranged between at least one of the following elements: an assembly including a spacer body and a first spacer end such that the first spacer end is rotatable relative to the spacer body; an assembly including a spacer body and a second spacer end such that the second spacer end is rotatable relative to the spacer body; and, where applicable, an assembly including a fastening device and a corresponding connection such that the connection is rotatable relative to the corresponding fastening device.

[0022] According to a particular embodiment, the maximum dimension of the cross-section of each connecting portion is less than the width of the portion of the corresponding T-slot corresponding to the T-bar, and the maximum dimension of the cross-section of each distal end is less than the width of the portion of the corresponding T-slot corresponding to the T-bar, such that each extension can rotate in the corresponding T-slot after engagement.

[0023] Preferably, the connecting portion is a cylinder whose diameter is smaller than the width of the portion of the corresponding T-slot corresponding to the T-bar. However, it should be understood that, depending on the variation, the connecting portion may have other shapes, such as a prism shape with a polygonal base.

[0024] Preferably, the distal end is a cylinder with a diameter smaller than the width of the portion of the corresponding T-slot corresponding to the T-shaped crossbar. However, it should be understood that other shapes are also possible, such as a prism with a polygonal base.

[0025] According to a particular embodiment, the maximum dimension of the cross-section of each connecting portion is less than the width of the portion of the corresponding T-slot corresponding to the T-bar; each T-slot also includes an inner cavity, and the cross-section of each distal end includes at least a first dimension and a second dimension, the first dimension being less than the width of the portion of the corresponding T-slot corresponding to the T-bar, and the second dimension being greater than the width of the portion of the corresponding T-slot corresponding to the T-bar and less than the minimum dimension of the cross-section of the corresponding inner cavity, such that each extension can slide in the corresponding T-slot and then be locked in the T-slot by rotation of the distal end in the inner cavity.

[0026] Preferably, the connecting portion is a cylinder whose diameter is smaller than the width of the portion of the corresponding T-slot corresponding to the T-bar. However, it should be understood that, depending on the variation, the connecting portion may have other shapes, such as a prism shape with a polygonal base.

[0027] More preferably, each cavity is in the form of a cylindrical recess, the cylindrical axis of which is parallel to the T-shaped rod of the corresponding T-slot. However, it should be understood that, depending on the variation, the cavity may have other forms, such as a prism-shaped recess with a polygonal bottom.

[0028] Preferably, the distal end has a prism shape with an elliptical base. However, it should be understood that, depending on the variation, the distal end may have other shapes.

[0029] Therefore, each extension can slide in a corresponding T-slot and then be locked in the T-slot by the user, preferably by rotating the spacer 90° along an axis parallel to the wheel rotation axis of the pair of roller skis, thereby causing the distal end to rotate in its corresponding cavity.

[0030] According to a particular embodiment, the first spacer end and the second spacer end include a first positioning locking device, and the first connection portion and the second connection portion include a second positioning locking device. The first spacer end and the second spacer end are locked in a use position relative to the first connection portion and the second connection portion through the interaction of the first positioning locking device and the second positioning locking device. The first positioning locking device and the second positioning locking device are selected from two magnets and a pair of pins or balls including a recess and a spring-biased ball.

[0031] It should be understood that the positioning and locking device preferably enables the spacer end to be held in the prescribed use position after locking (e.g., after the spacer end has been rotated 90° in the connection along an axis parallel to the wheel rotation axis of the pair of roller skis).

[0032] It should also be understood that, in one variation, the locking device can function as a notch, allowing the user to be indicated to the correct position of the spacer relative to the connection before any possible rotation along an axis parallel to the rotation axis of the wheels of the pair of roller skis. The positioning locking device can then be placed on the rotation axis of the spacer, i.e., on an axis parallel to the rotation axis of the wheels of the pair of roller skis.

[0033] It should also be understood that the positioning and locking device can implement other technical solutions, such as tight fit, friction, or other spring biasing elements.

[0034] Finally, it should be understood that the positioning locking device is preferably configured to allow the user to unlock the positioning locking device by hand.

[0035] According to one particular embodiment, the multifunctional system is configured for use with motorized roller skis, and a receiving portion is formed in the spacer body for accommodating a remote control for controlling at least one motor of the roller skis.

[0036] According to one particular embodiment, the receiving portion includes at least one window configured to enable a user to actuate at least one control button of a remote control housed in the receiving portion, and the spacer body is configured to be held in the user's hand when the spacer is not engaged with the connecting portion so as to control the movement of the roller ski via the remote control.

[0037] This configuration, in particular, allows users to hold the multi-functional system in their hands while wearing roller skis in order to control movement on the roller skis.

[0038] It should be understood that the number of windows is selected based on the remote control intended to be housed in the receiving unit. Other windows may be provided, such as a display device for showing the remote control, or buttons for enabling operation to select the roller ski's operating mode. These control buttons may be, for example, trigger buttons or joystick buttons.

[0039] An opening may be provided in the spacer body, such as a hatch in the spacer body or a spacer body formed by two housings connected by a hinge, so that the receiving part can be entered to remove the remote control, thereby replacing the remote control battery or replacing the remote control while keeping the connector in place.

[0040] According to one particular embodiment, the connector further includes a handle portion connected to the spacer body via a telescopic portion, the telescopic portion being configured to selectively extend the handle portion away from the spacer body and retract the handle portion toward the spacer body, wherein the handle portion is configured to allow a user to grip it so that, when the user is not wearing the roller skis and the spacer is engaged with the first and second connecting portions, the pair of roller skis can be pulled as a single unit and transported.

[0041] Preferably, the telescopic portion includes two telescopic tubes, each extending between a corresponding end of the handle portion and the spacer body. However, it should be understood that, according to a variation, the telescopic portion may include a single telescopic tube connecting the central portion of the handle portion to the spacer body.

[0042] According to a particular embodiment, the handle portion includes an offset control device configured to command the first spacer end and the second spacer end to unlock from the first connection portion and the second connection portion, respectively.

[0043] For example, if the positioning and locking device uses a spring-biased element, the offset control device could be a cable system that biases the spring-biased element against the spring. Similarly, if the positioning and locking device uses a magnet, more particularly an electromagnet, the offset control device could be a control system for the electromagnet.

[0044] According to one particular embodiment, the handle portion includes at least one control button configured to command the braking and / or acceleration of the roller ski.

[0045] This configuration allows the user to control the motorized roller ski during transport, especially when the user has extended the telescopic section and is pulling the roller ski via the handle.

[0046] According to one particular embodiment, the end of the first spacer or the end of the second spacer is permanently engaged and hinged to the corresponding connecting portion, such that the connector can be folded along the permanently connected roller ski.

[0047] Preferably, the connector can be folded along the corresponding roller ski in a manner similar to a bracket, so as not to interfere with the use of the roller ski.

[0048] The articulated connection may include, for example, a pivot connection or a ball joint connection.

[0049] Furthermore, it should be understood that the releasable engagement of the spacer end configured to releasably engage with its corresponding connection can have different properties and can involve, for example, a T-groove, in which the extension slides in a manner similar to a multifunctional system with double releasable engagements.

[0050] It can be noted here that, using a T-slot including an inner cavity on the releasable engagement side, locking can also be achieved by rotating the extension within the cavity along an axis parallel to the rotation axis of the wheels of the pair of roller skis, for example, by 90°, similar to a multi-functional system with dual releasable engagements. In this case, it should be understood that if the permanent hinged connection is achieved via a pivot-type hinge, the pivot connection is mounted on a bearing, allowing the user to drive the spacer to rotate along an axis parallel to the rotation axis of the wheels of the pair of roller skis after the extension is releasably engaged with the corresponding connecting part. It should also be understood that using a ball-and-socket joint connection for the permanent hinged connection directly allows the user to perform the desired rotation along an axis parallel to the rotation axis of the wheels of the pair of roller skis. Attached Figure Description

[0051] Specific embodiments of the invention will now be described with reference to the accompanying drawings.

[0052] In these attached figures: Figure 1 It is a top view of a pair of roller skis, in which a multifunctional system according to a first embodiment of the present invention is installed.

[0053] Figure 2 yes Figure 1 A three-dimensional view of the connector.

[0054] Figure 3 yes Figure 1 A perspective view of the first connecting part of the multifunctional system, which is arranged on the first roller ski.

[0055] Figure 4a yes Figure 1 An exploded view of the connection part of a multifunctional system.

[0056] Figure 4b yes Figure 4a A perspective view of the external portion of the connector, in which the inner cavity is visible.

[0057] Figure 5a yes Figure 1 A perspective view of a pair of roller skis and a multi-functional system, wherein the connector is relative to... Figure 1 It rotated 90°.

[0058] Figure 5b yes Figure 5a A perspective view of a pair of roller skis and a multi-functional system, with the telescopic section extended.

[0059] Figure 6 This is a perspective view of a variation of the first embodiment of the multifunctional system, wherein the telescopic part is in the extended state. Detailed Implementation

[0060] First refer to Figure 1 As can be seen, a multifunctional system M according to a first embodiment of the present invention is shown, which is mounted on a pair of roller skis S1, S2.

[0061] The multifunctional system M according to the present invention includes a first connecting part 1, a second connecting part 2, and a connector 3.

[0062] The first connecting part 1 is fixed to the first roller ski S1 of the pair of roller skis S1 and S2, and the second connecting part 2 is fixed to the second roller ski S2 of the pair of roller skis S1 and S2.

[0063] Furthermore, when the roller skis S1 and S2 are aligned side by side on a flat surface, the first connecting part 1 and the second connecting part 2 are configured to be arranged opposite to each other on each of the roller skis S1 and S2.

[0064] according to Figures 1 to 6 In the first embodiment shown, the first connecting part 1 and the second connecting part 2 are integrated into the body C of the corresponding roller skis S1 and S2 in the pair of roller skis S1 and S2.

[0065] However, in a variant and according to an embodiment of the multifunctional system M (not shown), the first connecting part 1 and the second connecting part 2 are each integrated into a corresponding fastening device configured to fasten to the body C of the corresponding roller ski S1, S2 of the pair of roller skis S1, S2, thereby adapting the multifunctional system M to existing roller skis S1, S2 by retrofitting.

[0066] According to the present invention, the connector 3 is configured to releasably connect the first roller ski S1 to the second roller ski S2 along an axis parallel to the axis of rotation of the wheels R of the pair of roller skis S1, S2, to form a stable assembly and apply a fixed distance between the first connecting portion 1 and the second connecting portion 2.

[0067] As described in the introduction, there exist roller skis S1 and S2 including steering wheels R, for example, roller skis S1 and S2 having pivotable front wheels R. In this case, for the purposes of this invention, "the axis of rotation of the wheels R of the pair of roller skis S1 and S2" refers to the axis of rotation of the wheels R defined in a stationary state (i.e., a state in which the front wheels R of roller skis S1 and S2 are aligned with the rear wheels R of roller skis S1 and S2 and their axes of rotation are parallel to each other). This stationary state is... Figure 1 , Figure 3 , Figure 5a and Figure 5b As shown in the image.

[0068] Simultaneously refer to Figure 2 The image shows a connector 3 according to a first embodiment. It can be seen that the connector 3 includes a spacer 31 having a first spacer end 311, a second spacer end 312, and a spacer body 313.

[0069] The first spacer end 311 is configured to engage with the first connecting portion 1, the second spacer end 312 is configured to engage with the second connecting portion 2, and the spacer body 313 extends between the first spacer end 311 and the second spacer end 312.

[0070] It should be understood that the multifunctional system M forms a stable component from the pair of roller skis S1 and S2, making it particularly easier for the user to put on the roller skis S1 and S2, even when the user is unable to sit down.

[0071] It should also be understood that the formation of this stabilizing component allows the user to lift and transport the pair of roller skis S1 and S2 as a single unit.

[0072] It should also be understood that, according to a variant not shown, the multi-function system M may include a latch at each releasable engagement, allowing the user to lock the multi-function system M with a key after the stabilizing components are formed. In this case, the multi-function system M also has an anti-theft function. It should be understood that, in this configuration, the multi-function system M (e.g., spacer body 313) preferably includes an attachment system (e.g., a ring) that allows the multi-function system M to be attached to street infrastructure (e.g., a lamppost or bicycle rack) via, for example, a cable.

[0073] Therefore, the connector 3 according to the invention preferably includes a gripping member 313a formed on the spacer body 313, so that the user can grip the spacer body 313, thereby lifting the pair of roller skis S1 and S2 as a single unit and enabling the pair of roller skis S1 and S2 to be transported when the user is not wearing the roller skis S1 and S2 and the spacer 31 is engaged with the first connecting part 1 and the second connecting part 2. It should be understood that the gripping member 313a preferably has an ergonomic three-dimensional shape designed to accommodate the user's hand or a portion thereof. It should also be understood that the gripping member 313a is preferably configured to have a length greater than the width of the user's hand (e.g., a length of 12 cm) to facilitate the user's gripping of the gripping member 313a.

[0074] Preferably, the connector 3 further includes a handle portion 33 connected to the spacer body 313 via a telescopic portion 32. The telescopic portion 32 is configured to selectively extend the handle portion 33 away from the spacer body 313 and retract the handle portion 33 toward the spacer body 313. The handle portion 33 is configured to allow the user to grip it so that, when the user is not wearing the roller skis S1, S2 and the spacer 31 is engaged with the first connecting portion 1 and the second connecting portion 2, the pair of roller skis S1, S2 can be pulled as a single unit and transported.

[0075] Figure 2 A connector 3 according to the invention is shown, wherein the telescopic portion 32 is in the retracted position, while Figure 6 A connector 3 according to the invention is shown, wherein the telescopic part 32 is in the extended position. Figure 5b The multi-functional system M is shown in a configuration that allows the user to pull the pair of roller skis S1 and S2 as a single unit via the handle 33.

[0076] exist Figure 2 and Figure 6 In the telescopic section, the telescopic part includes two telescopic tubes, each extending between a corresponding end of the handle portion 33 and the spacer body 313. However, it should be understood that, according to a variation not shown, the telescopic part 32 may include a single telescopic tube connecting the central portion of the handle portion 33 to the spacer body 313.

[0077] As described above, according to the present invention, the connector 3 is configured to releasably connect the first roller ski S1 to the second roller ski S2. This effect can be achieved by a combination of a releasable engagement between the connector 3 and the first roller ski S1 and a releasable engagement between the connector 3 and the second roller ski S2, or by a combination of a releasable engagement between the connector 3 and one of the roller skis S1 and S2 and a permanent engagement between the connector 3 and the other of the roller skis S1 and S2.

[0078] according to Figures 1 to 6 In the first embodiment shown and described in more detail below, the first spacer end 311 and the second spacer end 312 are configured to releasably engage with their corresponding connecting portions 1 and 2.

[0079] However, according to an embodiment not shown, described in more detail below, one of the first spacer end 311 or the second spacer end 312 is permanently engaged with its corresponding connecting portion 1, 2, while the other of the first spacer end 311 and the second spacer end 312 is configured to be releasably engaged with its corresponding connecting portion 1, 2.

[0080] For the purposes of this invention, "releasable engagement" or "releasable connection" refers to an engagement or connection that can be released by a user through manual manipulation of the connector 3 and / or the connecting parts 1 and 2.

[0081] Therefore, it should be understood that different technical solutions can be used to achieve releasable engagement, such as using magnets, using rings and hooks, or using resilient snap-fit.

[0082] However, for the first embodiment of the present invention, it is preferred to use a joint achieved by complementary shapes and sliding, so that a releasable joint can be achieved between the spacer ends 311, 312 and their respective corresponding connecting portions 1, 2.

[0083] In addition, for Figures 1 to 6 In the first embodiment shown, the multifunctional system M is designed such that the second spacer end 312 is a mirror image of the first spacer end 311 relative to the middle transverse plane of the spacer body 313, and the first connecting part 1 and the second connecting part 2 are arranged on the roller skis S1 and S2 such that the second roller ski S2 is a mirror image of the first roller ski S1.

[0084] However, it should be understood that, according to certain embodiments not shown, the above symmetry may not be followed in some cases.

[0085] like Figure 3 and Figure 4aAs can be seen more clearly, the first connecting portion 1 includes a T-shaped groove 11. Furthermore, as described above, for the first embodiment, the second connecting portion 2 is a mirror image of the first connecting portion 1, and therefore the second connecting portion 2 also includes a similar T-shaped groove 21.

[0086] according to Figure 4a In the first embodiment shown, each of the connecting portions 1 and 2 includes an outer portion 12, 22, a central portion 13, 23, and an inner portion 14, 24, which are assembled together by screwing. It should be understood that other technical solutions, such as riveting, bonding, or welding, can also be used for this assembly. It should also be understood that, for each connecting portion 1 and 2, two or three of the outer portion 12, 22, central portion 13, 23, and inner portion 14, 24 can be formed as a single piece, as needed.

[0087] The outer portions 12 and 22 of each connecting part 1 and 2 accommodate the corresponding T-grooves 11 and 21.

[0088] The internal portions 14, 24 of each connecting part 1, 2 are fastened to the corresponding roller skis S1, S2. According to the first embodiment, each internal portion 14, 24 is integrated into the body C of the corresponding roller ski S1, S2 and fastened thereto by screws. However, it should be understood that fastening can be achieved by other technical solutions, such as by integral components, riveting, welding or bonding. It should also be understood that the same screws can be used to assemble the outer portions 12, 22, the central portions 13, 23 and the internal portions 14, 24 together and fasten the internal portions 14, 24 to the corresponding roller skis S1, S2. It should also be understood that, according to a variation, the internal portions 14, 24 can be fastened to the corresponding roller skis S1, S2 using a first screw, and the outer portions 12, 22, the central portions 13, 23 and the internal portions 14, 24 can be assembled together using a second screw. As described above, in one variation and according to an embodiment of the multifunctional system M (not shown), the first connecting part 1 and the second connecting part 2 can each be integrated into a corresponding fastening device configured to fasten to the body C of the corresponding roller skis S1, S2, thereby enabling the multifunctional system M to be adapted to existing roller skis S1, S2 through retrofit installation. It should be understood that the internal parts 14, 24 are fastened to the corresponding fastening device (e.g., by screwing, riveting, welding, or bonding), and the fastening device is fastened to the corresponding roller skis S1, S2 (e.g., by welding, bonding, screwing, or clamping, such as clamping with two jaws in a vise-like manner).

[0089] The central portions 13 and 23 are located between the outer portions 12 and 22 and the inner portions 14 and 24, and may include positioning locking devices 4 configured to hold the spacer ends 311 and 312 in a predetermined use position. These positioning locking devices 4 will be described in more detail below.

[0090] like Figure 2 As can be seen more clearly, the first spacer end 311 and the second spacer end 312 include extensions 311a or 312a. Each extension 311a, 312a includes connecting portions 311b, 312b and distal ends 311c, 312c located outside the connecting portions 311b, 312b. Furthermore, the cross-section of each distal end 311c, 312c is larger than the cross-section of the corresponding connecting portion 311b, 312b.

[0091] Therefore, in the first embodiment of the present invention, each releasable engagement is achieved by engaging the T-slots 11, 21 with the corresponding extensions 311a, 312a, by sliding the connecting portions 311b, 312b in the portions 11a, 21a of the T-slots 11, 21 corresponding to the T-bars, and by sliding the distal ends 311c, 312c in the portions 11b, 21b of the T-slots 11, 21 corresponding to the T-bars.

[0092] It should be understood that, according to a variation of the first embodiment (not shown), the convex and concave portions can be interchanged; that is, the connecting portions 1 and 2 may include extensions 311a and 312a, while the spacer ends 311 and 312 may include T-grooves 11 and 21. It should also be understood that, in this case, the engagement between the connecting portions 1 and 2 and the spacer ends 311 and 312 remains similar to the engagement described above.

[0093] for Figure 1 The first embodiment of the multifunctional system M shown in Figure 5, and as Figure 2 As can be seen more clearly, the maximum dimension of the cross-section of each connecting portion 311b, 312b is smaller than the width of the corresponding portions 11a, 21a of the T-slots 11, 21 corresponding to the T-shaped rods. According to the first embodiment, the connecting portions 311b, 312b are cylinders with a diameter smaller than the width of the corresponding portions 11a, 21a of the T-slots 11, 21 corresponding to the T-shaped rods. However, it should be understood that, according to variations not shown, the connecting portions 311b, 312b can have other shapes, such as prisms with polygonal bases.

[0094] In addition, such as Figure 4bAs seen more clearly, each T-slot 11, 21 also includes an inner cavity 11c, 21c. According to the first embodiment, each inner cavity 11c, 21c is in the form of a cylindrical recess, the cylindrical axis of which is parallel to the T-shaped rod of the corresponding T-slot 11, 21. However, it should be understood that, according to variations not shown, the inner cavities 11c, 21c can have other forms, such as prism-shaped recesses with polygonal bottoms.

[0095] In addition, refer to Figures 2 to 4b Each distal end 311c, 312c has a cross-section comprising at least a first dimension and a second dimension. The first dimension is smaller than the width of the portion 11b, 21b of the corresponding T-slot 11, 21 corresponding to the T-shaped crossbar. The second dimension is both larger than the width of the portion 11b, 21b of the corresponding T-slot corresponding to the T-shaped crossbar and smaller than the minimum dimension of the cross-section of the corresponding inner cavity 11c, 21c. Figure 2 In a variation of the first embodiment shown, the distal ends 311c and 312c have a prism shape with an elliptical base. However, it should be understood that, according to the variation not shown, the distal ends 311c and 312c may have other shapes.

[0096] Therefore, each extension 311a, 312a can slide in the corresponding T-slots 11, 21 and then be locked in the T-slot by the user. By rotating the spacer 31 90° along an axis parallel to the axis of rotation of the wheels R of the pair of roller skis S1, S2, the distal ends 311c, 312c rotate in their respective cavities 11c, 21c.

[0097] Figure 6 A variation of the first embodiment is shown. Apart from the remote ends 311c and 312c, this variation is similar to... Figure 2 The variations shown are the same. Therefore, for Figure 6 In the variant shown, the maximum dimension of the cross-section of each distal end 311c, 312c is smaller than the width of the portion 11b, 21b corresponding to the T-shaped crossbar of the corresponding T-slot 11, 21. Specifically, for the variant shown, the distal ends 311c, 312c are cylinders with a diameter smaller than the width of the portion 11b, 21b corresponding to the T-shaped crossbar of the corresponding T-slot 11, 21. It should be understood that other shapes are also possible, such as prisms with polygonal bases. It should also be understood that after engagement, each extension 311a, 312a is then able to rotate freely within the corresponding T-slot 11, 21. Therefore, it should be understood that, with Figure 2The variant shown is different. In this variant, the locking between the extensions 311a and 312a and the T-slots 11 and 21 cannot be achieved by the interaction between the distal ends 311c and 312c and the inner cavities 11c and 21c after the spacer 31 is rotated 90° along an axis parallel to the axis of rotation of the wheels R of the pair of roller skis S1 and S2. Therefore, in this case, the T-slots 11 and 21 may not have the inner cavities 11c and 21c.

[0098] It should be understood that the free rotation (i.e., unlocked) of the spacer body 313 relative to the roller skis S1 and S2 along the axis of rotation parallel to the axis of rotation of the wheels R of the pair of roller skis S1 and S2 allows the user to lift the roller skis S1 and S2 by gripping the spacer body 313, for example without changing their grip on the spacer body 313 during the lifting process.

[0099] It should also be understood that, according to the embodiment not shown, the free rotation (i.e., unlocked) of the spacer body 313 relative to the roller skis S1 and S2 along an axis parallel to the rotation axis of the wheels R of the pair of roller skis S1 and S2 can be achieved by using bearings, for example, by using a bearing arranged between the spacer body 313 and the first spacer end 311 to allow the first spacer end 311 to rotate relative to the spacer body 313, and by using a bearing arranged between the spacer body 313 and the second spacer end 312 to allow the second spacer end 312 to rotate relative to the spacer body 313; or, for example, in the case where the multifunctional system M includes fastening devices, each connection 1 and 2 can be rotated relative to the corresponding fastening device by using a bearing arranged between each fastening device and the corresponding connection 1 and 2.

[0100] Furthermore, it should be understood that the use of, such as Figures 1 to 6 The symmetrical structure of the connecting portions 1 and 2 and the spacer ends 311 and 312 shown allows the connector 3 to be installed in two directions, that is, the first spacer end 311 can be releasably engaged with the second connecting portion 2, and the second spacer end 312 can be releasably engaged with the first connecting portion 1.

[0101] However, in some cases, it may be desirable to achieve a fault-proof effect, such that the connector 3 can only engage with the connecting portions 1 and 2 in a single specified direction. Therefore, according to one variation, one pair of T-slots 11, 21 / extensions 311a, 312a may have a larger dimension than the other pair of T-slots 11, 21 / extensions 311a, 312a. According to another variation, only one pair of convex and concave portions can be interchanged; that is, one connecting portion 1, 2 may include T-slots 11, 21, while the other connecting portion 1, 2 includes extensions 311a, 312a, and one spacer end 311, 312 includes extensions 311a, 312a, while the other spacer end 311, 312 includes T-slots 11, 21.

[0102] As mentioned above, according to Figure 1 According to the first embodiment shown in Figure 5, the multifunctional system M also includes a positioning and locking device 4, which is configured to hold the ends 311, 312 of the spacers relative to the connecting portions 1, 2 in a predetermined use position.

[0103] Reference Figure 2 As can be seen, each distal end 311c, 312c includes a first positioning and locking device 4, which is in the form of two magnets and is housed in two recesses formed in the corresponding distal ends 311c, 312c.

[0104] Reference Figure 4a As can be seen, each connecting part 1, 2 includes a second positioning and locking device 4, which is in the form of two magnets and is housed in a recess formed in the corresponding central part 13, 23 and the corresponding internal part 14, 24.

[0105] For the first embodiment, it should be understood that the positioning and locking device 4 enables the spacer ends 311, 312 to be held in the prescribed use position after rotating 90° in the connecting portions 1, 2 along an axis parallel to the rotation axis of the wheels R of the pair of roller skis S1, S2.

[0106] It should also be understood that, in one variation, the positioning locking device 4 can be used as a notch, allowing the user to be indicated to the correct position of the spacer 31 relative to the connecting portions 1 and 2 before any possible rotation along the axis of rotation parallel to the axis of rotation of the wheels R of the pair of roller skis S1 and S2. In this case, the magnet can be placed on the axis of rotation of the spacer 31, i.e., on the axis of rotation parallel to the axis of rotation of the wheels R of the pair of roller skis S1 and S2.

[0107] It should also be understood that, in addition to or in place of a magnet, the positioning locking device 4 may implement other technical solutions, such as interference fit, friction, or a spring-biased element (e.g., a ball or pin) interacting with the corresponding recess. It should also be understood that the positioning locking device 4 is preferably configured to allow the user to unlock it by hand.

[0108] In the case where the multi-functional system M includes a handle portion 33, the handle portion 33 may include an offset control device configured to command the first spacer end 311 and the second spacer end 312 to unlock from the first connecting portion 1 and the second connecting portion 2, respectively. For example, if the positioning locking device 4 uses a spring-biased element, the offset control device may be a cable system that biases the spring-biased element against the spring. Similarly, for example, if the positioning locking device 4 uses a magnet, more particularly an electromagnet, the offset control device may be a control system for the electromagnet.

[0109] According to the first embodiment, the multi-functional system M is configured for use with motorized roller skis S1 and S2. For example... Figure 2 and Figure 6 As can be seen more clearly, a receiving portion 313b is formed in the spacer body 313 for accommodating a remote control for controlling the roller skis. It should be understood that each roller ski S1, S2 may include one or more motors configured to drive the front wheel R and / or the rear wheel R.

[0110] Furthermore, the receiving section 313b includes three windows 313c. The first window 313c is configured to allow the user to actuate control buttons on the remote control housed in the receiving section 313b, such as trigger buttons or joystick buttons. The other two windows 313c are configured to expose the display device of the remote control and allow operation of buttons for selecting the S1 and S2 operating modes of the roller skis. However, it should be understood that the number of windows 313c can vary depending on the remote control desired to be housed in the receiving section 313b. The spacer body can be designed to provide access to the receiving section via a hatch or via two hinged housings forming the spacer body, particularly to allow access to the remote control for replacement or battery replacement.

[0111] Furthermore, when the spacer 31 is not engaged with the connecting parts 1 and 2, the spacer body 313 is configured to be held in the user's hand so as to control the movement of the roller skis S1 and S2 via a remote control, for example, by manipulating trigger-type or lever-type control buttons to accelerate or brake the roller skis S1 and S2. Therefore, the first embodiment allows the user to hold the multi-functional system M in their hand while wearing the roller skis S1 and S2 in order to control the movement on the roller skis S1 and S2.

[0112] According to an embodiment not shown, the handle portion 33 may further include one or more control buttons configured to command the braking and acceleration of the roller skis S1 and S2. This configuration, in particular, enables the user to control the roller skis S1 and S2 during transport (when the user has extended the telescopic portion 32 and is pulling the roller skis S1 and S2 via the handle portion 33).

[0113] It should also be understood that, in one variant, the multi-functional system M can have a simpler configuration, i.e., without the housing 313b or window 313c. This simplified configuration can be used, for example, when the control systems of the roller skis S1 and S2 are not intended to be housed in the connector 3, or when the roller skis S1 and S2 are not motorized.

[0114] Furthermore, as described above, the connector 3 is configured to releasably connect the first roller ski S1 to the second roller ski S2, and according to an embodiment not shown, one of the first spacer end 311 or the second spacer end 312 is permanently engaged with its corresponding connecting portion 1, 2, while the other of the first spacer end 311 or the second spacer end 312 is configured to releasably engage with its corresponding connecting portion 1, 2.

[0115] According to this embodiment, the spacer ends 311 and 312 that are permanently joined with the corresponding connecting parts 1 and 2 are preferably joined by a hinged connection (e.g., a pivot connection or a ball joint connection), so that in use, the connector 3 can be folded along the corresponding roller skis S1 and S2 in a manner similar to a bracket, so as not to hinder the use of the roller skis S1 and S2.

[0116] Furthermore, it should be understood that the releasable engagement of the spacer ends 311, 312, which are configured to releasably engage with their corresponding connecting portions 1, 2, can have different properties and can involve, for example, T-grooves 11, 21, wherein the extensions 311a, 312a slide in a manner similar to that described above for the multifunctional system M with dual releasable engagements.

[0117] It can be noted here that, using the T-slots 11, 21 including the cavities 11c, 21c on the releasable engagement side, locking can also be achieved by rotating the extensions 311a, 312a 90° within the cavities 11c, 21c along an axis parallel to the rotation axis of the wheels R of the pair of roller skis S1, S2, in a manner similar to that described above for the multi-functional system M with dual releasable engagement. In this case, it should be understood that if the permanent hinged connection is achieved by a hinge of the pivotal connection type, the pivotal connection is mounted on a bearing such that after the extensions 311a, 312a are releasably engaged with the corresponding connecting parts 1, 2, the user can drive the spacer 31 to rotate along an axis parallel to the rotation axis of the wheels R of the pair of roller skis S1, S2. It should also be understood that using a ball joint connection for the permanent hinged connection directly allows the user to perform the required rotation along an axis parallel to the rotation axis of the wheels R of the pair of roller skis S1, S2.

[0118] According to the first embodiment, and as follows Figure 1 , Figures 3 to 5b As can be seen, when the wheels R of the roller skis S1 and S2 are supported on a horizontal surface, the T-slots 11 and 21 of the connecting parts 1 and 2 extend in the vertical direction. However, it should be understood that, according to the embodiment not shown, the T-slots 11 and 21 of the connecting parts 1 and 2 may extend in other directions, such as a direction inclined at 45° relative to the vertical direction.

[0119] Now refer to Figure 1 , Figure 5a and Figure 5b This section briefly describes some uses of the multifunctional system M according to the first embodiment.

[0120] exist Figure 1 In this configuration, the connector 3 is releasably engaged with the connecting parts 1 and 2, without locking. This configuration forms a stable assembly, making it easier, for example, to put on the roller skis S1 and S2. Figure 1 In one variation, the handle part 33 can be placed upwards and the telescopic part 32 can be extended, so that once the roller skis S1 and S2 are put on, the user can pull the handle part 33 to disengage the connector 3 from the connecting parts 1 and 2, thus retracting the connector 3 without bending over.

[0121] exist Figure 5a In the middle, connector 3 is relative to Figure 1 It has rotated 90°. Therefore, the connector 3 locks with the connecting parts 1 and 2. For example, this position can be used to lift the pair of roller skis S1 and S2 by gripping the gripping member 313a.

[0122] exist Figure 5b In the middle, connector 3 is relative to Figure 1It rotates 90° and the telescopic part 32 extends so that the pair of roller skis S1 and S2 can be pulled by gripping the handle part 33.

[0123] It should be understood that the specific embodiments described above are provided for illustrative purposes and are not restrictive, and modifications can be made without departing from the scope of the invention.

Claims

1. A multi-functional system (M) for a pair of roller skis (S1, S2), comprising: The first connecting part (1) is fixed to the first roller ski (S1) in the pair of roller skis (S1, S2). The second connecting part (2) is fixed to the second roller ski (S2) in the pair of roller skis (S1, S2). The first connecting part (1) and the second connecting part (2) are configured to be arranged opposite to each other on each roller ski (S1, S2) of the pair of roller skis (S1, S2) when the roller skis (S1, S2) are aligned side by side on a flat surface; and A connector (3) is configured to releasably connect the first roller ski (S1) to the second roller ski (S2) along an axis parallel to the axis of rotation of the wheels (R) of the pair of roller skis (S1, S2) to form a stable assembly and to apply a fixed distance between the first connection (1) and the second connection (2). The connector (3) includes a spacer (31) having a first spacer end (311), a second spacer end (312), and a spacer body (313). The first spacer end (311) is configured to engage with the first connection (1), the second spacer end (312) is configured to engage with the second connection (2), and the spacer body (313) extends between the first spacer end and the second spacer end (311, 312). At least one of the first spacer end (311) and the second spacer end (312) is configured to releasably engage with the corresponding connection (1, 2). The first connecting part (1) and the second connecting part (2) are respectively connected parts (1, 2) integrated into the body (C) of the corresponding roller ski (S1, S2) in the pair of roller skis (S1, S2), or connected parts (1, 2) integrated into the fastening device, wherein the fastening device is configured to fasten to the body (C) of the corresponding roller ski (S1, S2) in the pair of roller skis (S1, S2).

2. The system (M) according to claim 1, characterized in that, A gripping member (313a) is formed on the spacer body (313) so that the user can grip the spacer body (313) and thus lift the pair of roller skis (S1, S2) as a whole unit and transport the pair of roller skis (S1, S2) when the user is not wearing the roller skis (S1, S2) and the spacer (31) is engaged with the first connecting part and the second connecting part (1, 2).

3. The system (M) according to claim 1 or 2, characterized in that, One of the first connecting portion (1), the second connecting portion (2), and the first spacer end (311) and the second spacer end (312) includes a T-groove (11, 21); and the other of the first connecting portion (1), the second connecting portion (2), and the first spacer end (311) and the second spacer end (312) includes an extension (311a, 312a), the extension (311a, 312a) comprising a connecting portion (311b, 312b) and located between the connecting portions (311b, 312b) and the connecting portion (311b, 312b). The distal ends (311c, 312c) are external, and the cross-section of the distal ends is larger than that of the connecting portions (311b, 312b). Each releasable engagement is achieved by engaging the corresponding T-slots (11, 21) with the extensions (311a, 312a), by sliding the connecting portions (311b, 312b) in the T-slots (11, 21) corresponding to the T-bars (11a, 21a), and by sliding the distal ends (311c, 312c) in the T-slots (11, 21) corresponding to the T-bars (11b, 21b).

4. The system (M) according to any one of claims 1 to 3, characterized in that, The bearing is arranged between at least one of the following components: The assembly includes the spacer body (313) and the first spacer end (311) such that the first spacer end (311) is rotatable relative to the spacer body (313). An assembly including the spacer body (313) and the second spacer end (312) such that the second spacer end (312) is rotatable relative to the spacer body (313), and, When applicable, the assembly includes a fastening device and a corresponding connecting part (1, 2) such that the connecting part (1, 2) can rotate relative to the corresponding fastening device.

5. The system (M) according to claim 3, characterized in that, The maximum cross-sectional dimension of each connecting portion (311b, 312b) is smaller than the width of the portion (11a, 21a) of the corresponding T-slot (11, 21) corresponding to the T-bar, and the maximum cross-sectional dimension of each distal end (311c, 312c) is smaller than the width of the portion (11b, 21b) of the corresponding T-slot (11, 21) corresponding to the T-bar, such that each extension (311a, 312a) can rotate in the corresponding T-slot (11, 21) after engagement.

6. The system (M) according to claim 3, characterized in that: The maximum cross-sectional dimension of each connecting part (311b, 312b) is smaller than the width of the corresponding portion (11a, 21a) of the T-slot (11, 21) corresponding to the T-bar. Each T-slot (11, 21) also includes an inner cavity (11c, 21c), and The cross-section of each distal end (311c, 312c) includes at least a first dimension and a second dimension, the first dimension being smaller than the width of the portion (11b, 21b) of the corresponding T-slot (11, 21) corresponding to the T-shaped crossbar, and the second dimension being larger than the width of the portion (11b, 21b) of the corresponding T-slot (11, 21) corresponding to the T-shaped crossbar and smaller than the minimum dimension of the cross-section of the corresponding inner cavity (11c, 21c), such that each extension (311a, 312a) can slide in the corresponding T-slot (11, 21) and then be locked in the T-slot by rotation of the distal end (311c, 312c) in the inner cavity (11c, 21c).

7. The system (M) according to any one of claims 1 to 6, characterized in that, The first spacer end (311) and the second spacer end (312) include a first positioning locking device (4); and the first connecting portion (1) and the second connecting portion (2) include a second positioning locking device (4); and the first spacer end (311) and the second spacer end (312) are locked in the use position relative to the first connecting portion (1) and the second connecting portion (2) by the interaction of the first positioning locking device and the second positioning locking device (4), wherein the first positioning locking device and the second positioning locking device (4) are selected from two magnets and a pair including a recess and a spring-biased pin or a spring-biased ball.

8. The system (M) according to any one of claims 1 to 7, characterized in that, The system (M) is configured to be used with motorized roller skis (S1, S2), and a receiving portion (313b) is formed in the spacer body (313) for receiving a remote control for controlling at least one motor of the roller skis (S1, S2).

9. The system (M) according to claim 8, characterized in that, The receiving portion (313b) includes at least one window (313c) configured to allow a user to actuate at least one control button of the remote control housed in the receiving portion (313b), and the spacer body (313) is configured to be held in the hand by the user when the spacer (31) is not engaged with the connecting portion (1, 2) so as to control the movement of the roller skis (S1, S2) via the remote control.

10. The system (M) according to any one of claims 1 to 9, characterized in that, The connector (3) further includes a handle (33) connected to the spacer body (313) via a telescopic part (32), the telescopic part (32) being configured to selectively extend the handle (33) away from the spacer body (313) and retract the handle (33) toward the spacer body (313), wherein the handle (33) is configured to be gripped by a user so that when the user is not wearing the roller skis (S1, S2) and the spacer (31) is engaged with the first connecting part and the second connecting part (1, 2), the pair of roller skis (S1, S2) can be pulled as a whole unit and transported.

11. The system (M) according to claim 10 of claim 7, characterized in that, The handle portion (33) includes an offset control device configured to command the first spacer end (311) and the second spacer end (312) to unlock from the first connecting portion (1) and the second connecting portion (2), respectively.

12. The system (M) according to any one of claims 10 and 11 of claim 8, characterized in that, The handle (33) includes at least one control button configured to command at least one of braking and acceleration of the roller skis (S1, S2).

13. The system according to any one of claims 1 and 2 and claim 4, which refers to any one of claims 1 and 2, or the system according to claim 10, which refers to any one of claims 1 and 2 and claim 4, which refers to any one of claims 1 and 2, characterized in that, One of the first spacer end (311) and the second spacer end (312) is permanently engaged and hinged with the corresponding connecting part (1, 2), so that the connector (3) can be folded along the roller ski (S1, S2) to which it is permanently connected.

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