TELESCOPIC DEVICE FOR MOUNTING ON TWO FACING SIDES

Description

TECHNICAL FIELD OF THE INVENTION

The technical field of the invention is that of telescopic devices, particularly those to be mounted on two opposite faces, for example, vertical uprights. The invention relates to a telescopic device intended to be mounted on first and second faces opposite each other, this telescopic device being, for example, intended for mounting a sports accessory.

STATE OF THE PRIOR ART

Various methods are known for mounting a so-called «exercise» device allowing to perform exercises, this mounting being done on a door frame, also called a door casing.

According to one practice, an exercise device is used comprising a telescopic bar that exerts forces in opposite directions, via pads arranged at its opposite longitudinal ends, on opposite uprights of the frame. This solution is unsafe because if the length of the telescopic bar is incorrectly adjusted, the forces may be insufficient: the telescopic bar can slip between the two uprights, causing the user to fall, for example, if they are pulling on the exercise device.

According to another practice, it is known to use an exercise device with a bearing element bearing on a cross member of the frame on one face of the frame and two bearing members bearing against the two uprights of the frame on a second face of the frame opposite its first face. A problem with this alternative practice is that if the user exerts excessive force during pulls, this can remove the support on the cross member of the frame, causing the exercise device to fall.

Both types of exercise devices described above have the disadvantage of being unsafe.

OBJECT OF THE INVENTION

The present invention aims to make the use of a telescopic device to be mounted between two opposite faces safer.

To this end, the invention relates to a telescopic device intended to be mounted on first and second faces opposite each other, the telescopic device comprising:

• • a first bearing member and a second bearing member opposite each other and separated by a separation distance, the first bearing member and the second bearing member being intended to bear against one of the first and second faces, and against the other of the first and second faces, respectively;
  • a telescopic system comprising a first telescopic bar and a second telescopic bar, at least the first telescopic bar being connected to the first bearing member, said telescopic system being configured to selectively adopt:
    • a setting configuration authorizing a variation in the length of the first telescopic bar, resulting in a setting of the separation distance, and allowing a variation in the length of the second telescopic bar;
    • a locking configuration in which the length of the first telescopic bar and the length of the second telescopic bar remain fixed;
  • a connecting element mounted on the first and second telescopic bars;
  • an adjustment device configured to, in the locking configuration of the telescopic system, displace the second bearing member in order to adjust the separation distance.

Generally, such a telescopic device can be installed between and in contact with the first and second faces in a secure and intuitive manner for the following reasons:

• • the presence of two telescopic bars allows the support forces to be distributed across the first and second faces;
  • the telescopic system allows for an initial length setting of the telescopic device, this length being measured between two faces oriented in opposite directions of the first and second bearing members;
  • the adjustment device allows for fine setting in order to exert appropriate bearing forces against the first and second faces respectively to mount the telescopic device between these first and second faces, or allows for reducing the length of the telescopic device measured between said two faces oriented in opposite directions in order to withdraw the telescopic device from the first and second faces.

The telescopic device may further comprise one or more of the following features.

According to one feature of the telescopic device, the second telescopic bar is connected to the first bearing member, the telescopic device being configured such that, in the setting configuration, the lengths of the first and second telescopic bars vary simultaneously.

This allows for simultaneous setting of the first and second telescopic bars connected to the same first bearing member. Furthermore, it increases the bearing surface of the first bearing member for improved support between the first and second faces.

According to one feature of the telescopic device, the adjustment device comprises a plate secured to the first and second telescopic bars, and a mechanism for adjusting a spacing distance of the plate relative to the second bearing member.

The plate thus serves as an interface between the telescopic system and provides a bearing point for the adjustment mechanism.

According to one feature of the telescopic device, the adjustment mechanism comprises:

• • a rod comprising a thread, a first longitudinal end and a second longitudinal end, the second longitudinal end of the rod being connected to the second bearing member, the rod passing through the plate;
  • an element engaged on the thread;
    the adjustment mechanism being configured so that the adjustment of the spacing distance is achieved by a relative displacement between the rod and the element engaged on the thread, the telescopic device comprising a manual actuating member and being configured so that the relative displacement is induced by actuating the manual actuating member.

This allows a force to be applied via a human actuation of the manual actuating member to enable the telescopic device to be held by friction against the first and second faces, for example, on a door casing.

According to a feature of the telescopic device, the telescopic device is such that:

• • the threaded rod is fixed relative to the second bearing member;
  • the element engaged on the thread is arranged between the plate and the second bearing member, and is configured to be pressed against the plate when the first bearing member is pressed against one of the first and second faces and the second bearing member is pressed against the other of the first and second faces;
  • the manual actuating member allows the element engaged on the thread to be displaced along the rod.

Such an adjustment mechanism is simple to use; the element engaged on the thread (when it is bearing against the plate) allows the spacing distance of the plate relative to the second bearing member to be defined when the first and second bearing members are stressed in each other's direction.

According to a feature of the telescopic device, the telescopic device is such that:

• • the rod is mounted on the second bearing member so as to be free to rotate relative to the second bearing member;
  • the element engaged on the thread is a hole in the plate;
  • the manual actuating member is intended to selectively drive the rod in rotation:
    • in a first direction of rotation, inducing a movement of the second bearing member closer to the plate;
    • in a second direction of rotation, inducing a movement of the second bearing member away from the plate.

This allows the separation distance to be adjusted appropriately while allowing to maintain the second bearing member, and therefore the spacing distance relative to the plate, since the rod is screwed into the plate.

According to a feature of the telescopic device, the second bearing member is mounted relative to the plate via a sliding connection.

This allows its degree of freedom to be fixed in order to ensure easy mounting of the telescopic device on the first and second faces.

According to one feature of the telescopic device, the telescopic device comprises a first guide rod and a second guide rod, each extending from the second bearing member, the plate comprising a first guide in which the first guide rod is engaged and a second guide in which the second guide rod is engaged, the first guide rod has a longitudinal end housed in the first telescopic bar and the second guide rod has a longitudinal end housed in the second telescopic bar.

The first and second guide rods are thus located in line with the first and second telescopic bars, respectively, which allows the adjustment device to be in line with these first and second telescopic bars.

According to a feature of the telescopic device, each of the first and second telescopic bars comprises a hollow body forming a sliding guide and a sliding portion engaged in the hollow body, the sliding of said sliding portion relative to said hollow body is inhibited in the locking configuration, preferably by means of a clamping ring, said sliding portion includes a longitudinal end connected to the adjustment device.

In this way, the adjustment device is arranged in line with the first and second telescopic bars, this makes the telescopic device compact and allows for easy initial length setting, followed by adjustment to securely mount the telescopic device on the first and second faces using forces directed in opposite directions.

According to one feature of the telescopic device, each of the first and second telescopic bars comprises a sliding element engaged in its hollow body opposite the sliding portion engaged in its hollow body, said sliding element comprises a longitudinal end connected to the first bearing member, the sliding of said sliding element relative to said hollow body being inhibited in the locking configuration, preferably by means of a clamping collar.

This allows the connecting element to be centered between the first and second bearing members in order to obtain improved ergonomics and better distribution of the tensile forces applied to the connecting element when the telescopic device is mounted on its first and second faces.

According to one feature of the telescopic device, the connecting element is arranged between the first and second telescopic bars. The telescopic device comprising:

• • first fixing tabs extending from the first telescopic bar and staggered between the first bearing member and second bearing member;
  • second fixing tabs extending from the second telescopic bar and staggered between the first bearing member and second bearing member;
  • assembly members;
    and, for each tab selected from the first and second fixing tabs, said tab is engaged in the connecting element and traversed by one of the assembly members cooperating with the connecting element in order to fasten the connecting element to said tab.

This allows for efficient fastening of the connecting element.

According to a feature of the telescopic device, the telescopic device comprises:

• • a first clamping member configured to exert a clamping force between a bearing surface of the first clamping member and a lateral face of the first bearing member; and/or
  • a second clamping member configured to exert a clamping force between a bearing surface of the second clamping member and a lateral face of the second bearing member.

This allows for additional support of the telescopic device, for example, to a door frame, for example by clamping a shoulder of the frame like a clamp.

The invention also relates to a device for physical activity comprising the telescopic device as described and a sports accessory secured to the telescopic system.

Thus, the first and second faces can be used to mount the sports accessory and allow for physical activity, in particular allowing pull-up exercises.

The device for physical activity may be such that the sports accessory is a beam equipped with holds.

This allows for the practice of a sporting activity consisting of training for a subsequent climbing activity, for example, indoors or outdoors.

Other advantages and features will become apparent from the detailed description that follows.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention will be better understood upon reading the following detailed description, given solely by way of non-limiting example and made with reference to the accompanying drawings listed below.

FIG. 1 schematically represents a telescopic device according to one embodiment mounted on a door frame and supporting a climbing beam.

FIG. 2 shows, in a perspective view, the telescopic device according to a particular embodiment of the invention.

FIG. 3 shows a portion of the telescopic device of FIG. 2.

FIG. 4 shows a cross-sectional view of the telescopic device of FIG. 2.

FIG. 5 shows, in a perspective view, the telescopic device according to another particular embodiment of the invention.

FIG. 6 shows a portion of the telescopic device of FIG. 5.

FIG. 7 shows a portion of the telescopic device of FIG. 2 without a connecting element.

In these figures, the same reference numerals are used to designate the same elements. The elements shown in the different figures are not necessarily drawn to scale in order to facilitate understanding the figures.

DETAILED DESCRIPTION

In this description, “comprised between two values” means a range of values including said two values.

The invention relates to a telescopic device 100 intended to be mounted on first and second opposite faces 1001, 1002. These first and second faces 1001, 1002 are, in particular, vertical.

The device 100 is described as «telescopic» because its dimensions, particularly its length, can be adjusted to allow it to exert opposing forces on the first and second faces 1001, 1002, resulting in the telescopic device 100 being held in position relative to these first and second faces 1001, 1002, and in particular above a floor S, as shown by way of example in FIG. 1.

FIG. 1 shows an example of the telescopic device 100 mounted on a door frame 1000. Thus, the first and second faces 1001, 1002 are delimited respectively by a first upright 1003 of the door frame 1000 and a second upright 1004 of the door frame 1000.

The example of mounting on the door frame 1000 is illustrative in that the telescopic device 100 can be mounted on any type of opening or passage, such as a door opening to which a door frame is mounted, the frame 1000 itself (FIG. 1), or even two opposing walls of a corridor.

FIGS. 2 to 4 illustrate a first embodiment of the telescopic device 100, and FIGS. 5 and 6 illustrate a second embodiment of the telescopic device 100.

The telescopic device 100 comprises, as illustrated for example in FIGS. 1, 2, and 5, a first bearing member 101 and a second bearing member 102, which are opposed and separated by a separation distance d1. The first bearing member 101 and the second bearing member 102 are intended to bear against one of the first face 1001 and the second face 1002, and against the other of the first face 1001 and the second face 1002, respectively (see, in particular, FIG. 1 where this is the case).

Each of the first and second bearing members 101, 102 may comprise a support 101a, 102a, preferably rigid so as not to be deformed under the operating conditions of the telescopic device 100, and a friction element 101b, 102b designed to form a bearing surface in contact with the corresponding first face 1001 or second face 1002. In particular, the length of the telescopic device 100 is measured between the bearing surfaces of the two friction elements 101b, 102b.

The supports 101a, 102a may be made of metal.

The frictional elements 101b, 102b may be made of rubber or TPU (thermoplastic polyurethane). Each of the frictional elements 101b, 102b may have a raised pattern on its bearing surface to increase friction and ensure a satisfactory secure grip between the first and second faces 1001, 1002.

The telescopic device 100 comprises a telescopic system 103 comprising a first telescopic bar 104 and a second telescopic bar 105, for example, each made of metal.

In fact, the first telescopic bar 104 and the second telescopic bar 105 may each have a length that can be adjusted and vary between a minimum and a maximum length.

For example, the minimum length can be equal to 650 mm and the maximum length can be equal to 1230 mm. These lengths are particularly suitable for mounting the telescopic device 100 on the frame 1000, where the separation distance between the uprights typically varies between 730 mm and 830 mm and can extend up to 930 mm. This illustrative example can be adapted; indeed, depending on the intended use, i.e., the distance between the first and second faces 1001, 1002, the minimum and maximum lengths of the first and second telescopic bars 104, 105 can be adjusted when the telescopic device 100 is manufactured.

These first and second telescopic bars 104, 105 can each have any type of cross-section measured orthogonally to their respective extension direction, adapted to the function, this cross-section can be circular or square. For example, in FIGS. 2 and 5, the first and second telescopic bars 104, 105 are tubular.

At least the first telescopic bar 104 is connected, for example, fixed, to the first bearing member 101.

For example, a longitudinal end 104a of the first telescopic bar 104 is welded to the support 101a of the first bearing member 101, as shown in FIG. 4. In particular, the support 101a of the first bearing member 101 may comprise a projecting member engaged in the first bar 104 to improve the attachment of the first telescopic bar 104 to the first bearing member 101.

The telescopic system 103 is configured to selectively adopt:

• • a setting configuration authorizing a variation in the length of the first telescopic bar 104, resulting in a setting of the separation distance d1 and allowing a variation in the length of the second telescopic bar 105;
  • a locking configuration in which the length of the first telescopic bar 104 and the length of the second telescopic bar 105 remain fixed.

The telescopic device 100 comprises a connecting element 106 mounted on the first and second telescopic bars 104, 105, for example, by fastening with screws. Thus, the first and second telescopic bars 104, 105 are held together, which facilitates the handling of the telescopic device 100, particularly during its installation between the first and second faces 1001, 1002.

The connecting element 106 can be a support element, for example made of wood, intended for mounting a sports accessory 126 (FIG. 1), or it can be the sports accessory 126 itself.

The telescopic device 100 comprises an adjustment device 107 configured to, in the locking configuration of the telescopic system 103, displace the second bearing member 102 in order to adjust the separation distance d1.

Thus, the telescopic device 100 can have two types of setting: a first coarse setting to adapt it to the separation distance of the first and second faces 1001, 1002, and a fine setting, for example incremental, which can adjust the separation distance of the first and second bearing members 101, 102 in order to exert appropriate opposing forces on the first and second faces 1001, 1002.

The purpose of these two types of setting is to allow for quick and secure mounting of the telescopic device 100 to the first and second faces 1001, 1002.

For example, the adjustment device 107 is configured to allow a setting range of 80 mm. In other words, for a fixed length of the telescopic system 103, the separation distance d1 can vary by 80 mm between the first position of the second bearing member 102 and a second position of the second bearing member 102 relative to the first bearing member 101.

Preferably, and as illustrated in particular in FIGS. 2 and 5, the second telescopic bar 105 is connected to the first bearing member 101. For example, a longitudinal end 105a of the second telescopic bar 105 is welded to the support 101a of the first bearing member 101. This allows, in particular, for the setting of the first and second telescopic bars 104, 105 to be simultaneous, at least on the side of the first bearing member 101 that is secured to the first and second telescopic bars 104, 105. Therefore, the telescopic device 100 is preferentially configured so that, in the setting configuration, the lengths of the first and second telescopic bars 104, 105 vary simultaneously.

The fact that the first bearing member 101 connects the first and second telescopic bars 104, 105 also allows for the presence of a bearing surface of its friction element 101b having an elongation along the spacing direction of the first and second telescopic bars 104, 105: this makes it possible to increase the friction with the first face 1001 or the second face 1002, improving the support of the telescopic device 100 relative to the first and second faces 1001, 1002, in particular when a user performs pull-ups using the telescopic device 100. Therefore, the bearing surface of the first bearing member 101 (delimited, where applicable, by its friction element 101b) can exhibit an elongation greater than the spacing distance between the first and second telescopic bars 104, 105, thus ensuring good support and distribution of forces when the telescopic device 100 is mounted on the first and second faces 1001, 1002.

The adjustment device 107 may comprise a plate 108 secured to the first telescopic bar 104 and preferably to the first and second telescopic bars 104, 105, and a mechanism 109 for adjusting a spacing distance d2 between the plate 108 relative to the second bearing member 102.

In particular, the plate 108 is welded/fixed to the first and second telescopic bars 104, 105 via their respective longitudinal end 104b, 105b opposite the first bearing member 101 (FIGS. 4 and 5). In particular, the plate 108 may comprise projecting members engaged respectively in the first telescopic bar 104 and in the second telescopic bar 105 to improve their attachment to the plate 108.

In combination with the embodiment in which the first and second telescopic bars 104, 105 are also connected/welded to the first bearing member 101, it is clear that, in the setting configuration, the length setting of the first and second telescopic bars 104, 105 is performed simultaneously because the extension or reduction of one causes the extension or reduction of the other via their mechanical connections to the plate 108 and the first bearing member 101.

As mentioned above, one purpose of the adjustment mechanism 109 is to allow fine setting of the separation distance d1 (in particular by setting the spacing distance d2). To this end, there is a need to implement a reliable solution that allows to keep easily the fine setting.

To this end, the adjustment device 107, and where applicable the adjustment mechanism 109, may comprise a helical connection to implement an adjustment/setting of the spacing distance d2. A helical connection has the advantage of allowing incremental adjustment depending on the pitch of a thread in the helical connection and the advantage of keeping the adjustment/setting when the helical connection is not subjected to rotational movement.

According to one embodiment of the adjustment device 107, the adjustment mechanism 109 may comprise:

• • a rod 110 comprising a thread 111, a first longitudinal end 110a (in particular visible in FIGS. 2 to 6) and a second longitudinal end 110b (visible in FIG. 4), the second longitudinal end 110b of the rod 110 being connected, for example welded, to the second bearing member 102, the rod 110 passing through the plate 108;
  • an element 112 engaged on the thread 111;
    the adjustment mechanism 109 is configured so that the adjustment of the spacing distance d2 is implemented by a relative displacement between the rod 110 and the element 112 engaged on the thread 111. The telescopic device 100, or more particularly the adjustment device 107, comprises a manual actuating member 113 and is configured so that the relative displacement is induced by actuating the manual actuating member 113.

Thus, the precision of the adjustment can depend on the thread pitch 111 of the rod 110, obtained in particular by threading.

In particular, the adjustment device 107, and more particularly the adjustment mechanism 119, allows for incremental adjustment of the separation distance d1, which is in particular dependent on the thread pitch 111.

By «element 112 engaged on the thread 111 of the rod 110», it is understood that the element 112 has a complementary thread (for example, obtained by tapping) to the thread 111 of the rod 110, which is then screwed into the element 112 engaged on the thread 111.

In particular, the axis of the rod is aligned in a length setting direction of the telescopic device 100 (in particular parallel to the first and second telescopic bars 104, 105), this allows the thread 111 of the rod to oppose any change in the length of the telescopic device 100 as long as no rotational movement between the element 112 and the rod 110 is applied manually via the manual actuating member 113.

FIGS. 2 and 3 show a first embodiment of the adjustment mechanism 109. In particular, the rod 110 can be fixed relative to the second bearing member 102, notably by being welded to it via one of its longitudinal ends. The element 112 engaged on the thread 111 is arranged between the plate 108 and the second bearing member 102. The element 112 engaged on the thread 111 is configured to be pressed against the plate 108 when the first bearing member 101 is pressed against one of the first and second faces 1001, 1002, and the second bearing member 102 is pressed against the other of the first and second faces 1001, 1002. The manual actuating member 113 allows the element 112 engaged on the thread to be displaced (in particular, rotated) along the rod 110 to obtain the relative displacement.

Thus, the element 112 engaged on the thread 111 can be a nut, for example, a hexagonal nut, and the manual actuating member 113 can be a wrench that complements the nut.

The telescopic device 100 can be configured so that the manual actuating member 113 is free to rotate 360 degrees, which makes it easy to displace the element 112 engaged on the thread 111 in one direction or the other along the rod 110.

Alternatively, the manual actuating member 113 can be a ratchet wrench whose direction of use can be manually selected. This can be advantageous when the manual actuating member 113 cannot rotate 360 degrees without obstruction.

In particular, it is understood here that the length of the telescopic device 100, and in particular the separation distance d1 and the spacing distance d2, are given when the element 112 engaged on the thread 111 is pressed against the plate 108.

The nut forming the element 112 engaged on the thread 111 can be a locking nut, which facilitates its rotation, particularly when the manual actuating element 113 is the ratchet wrench, which will require some resistance to be wound/turned in the opposite direction to its direction of rotation when engaged with the nut (i.e., driving the nut).

FIGS. 5 and 6 show a second embodiment of the adjustment mechanism 109 in which the rod 110 can be mounted on the second bearing member 102 so as to be free to rotate relative to the second bearing member 102. The element 112, which engages with thread 111, is a hole in the plate 108 containing a thread (i.e., the hole is threaded). In other words, the rod 110 is screwed into the plate 108. The manual actuating member 113 is designed to selectively drive the rod 110 in rotation:

• • in a first direction of rotation, causing the second bearing member 102 to move closer to the plate 108;
  • in a second direction of rotation, causing the second bearing member 102 to move away from the plate 108.

For example, the manual actuating member 113 can be a crank attached to the rod 110 such that the rotation of the crank causes the rod 110 to pivot about its longitudinal axis.

According to another example, a nut 115 (FIG. 6) is welded to the rod 110, in particular on the side of the second bearing member 102. The manual actuating member 113 can then be a wrench complementary to the nut 115.

The telescopic device 100 can be configured so that the manual actuating member 113 is free to rotate 360 degrees, which makes it easy to rotate the nut 115 and thus the rod 110. Alternatively, the manual actuating member 113 can be a ratchet wrench whose direction of use can be selected manually. This can be advantageous when the manual actuating member 113 cannot rotate 360 degrees without obstruction.

According to the second embodiment of the adjustment mechanism 109, the rotational freedom of the rod 110 relative to the second bearing member 102 can be achieved via a pivot connection, for example, using bearings integrated into the second bearing member 102.

Preferably, the second bearing member 102 is mounted relative to the plate 108 via a sliding connection. This makes it possible to constrain the movement of the second bearing member 102 while preventing its rotation: only its translation will be permitted, this is particularly suitable when the second bearing member 102 must cooperate with one of the uprights 1003, 1004 of the frame 1000. Furthermore, this makes it easy to maintain opposing bearings for the first and second bearing members 104, 105 in order to obtain a better distribution of forces during the assembly of the telescopic device 100 on the first and second faces 1001, 1002.

In order to ensure proper displacement of the second bearing member 102, the telescopic device 100 may comprise a first guide rod 116 and a second guide rod 117, each extending from the second bearing member 102 (FIGS. 2 to 6), and in particular, each welded to the second bearing member 102.

In this case, the plate 108 comprises (as shown, for example, in FIG. 4) a first guide 118 in which the first guide rod 116 is engaged, and a second guide 119 in which the second guide rod 117 is engaged. These first and second guides 118, 119 cooperate, in particular, with the first and second guide rods 116, 117 via the sliding connection as described above, so that the first and second bearing members 101, 102 remain opposed to, and in particular intersected by, a plane intersecting, preferably orthogonally, the bearing surfaces of the friction elements 101b, 102b, and in particular parallel to the length setting direction of the telescopic device 100.

The first guide rod 116 has a longitudinal end 116a housed in the first telescopic bar 104, and the second guide rod 117 has a longitudinal end 117a housed in the second telescopic bar 105. This allows the second bearing member 102 to be continuous with the first and second telescopic bars 104, 105, since the first and second guide rods 116, 117 ensure continuity with the first and second telescopic bars 104, 105.

The first and second guides 118, 119 can each form a protrusion from a portion of the plate 108 and be engaged in, and in particular welded to, respectively, the first telescopic bar 104 and the second telescopic bar 105.

A preferred embodiment of the telescopic system 103 is now described. In particular, each of the first and second telescopic bars 104, 105 may comprise a hollow body 1041, 1051 forming a sliding guide and a sliding portion 1042, 1052 engaged in the hollow body 1041, 1051, the sliding of said sliding portion 1042, 1052 relative to said hollow body 1041, 1051 being inhibited in the locking configuration, preferably by means of a clamping ring 1043, 1053, said sliding portion 1042, 1052 comprising a longitudinal end connected to the adjustment device 107, this end being in particular:

• • for the first telescopic bar 104, the longitudinal end 104b of the first telescopic bar 104 opposite its longitudinal end 104a connected to the first bearing member 101;
  • for the second telescopic bar 105, the longitudinal end 105b of the second telescopic bar 105 opposite its longitudinal end 105a connected to the first bearing member 101.

For example, the longitudinal end of the corresponding sliding portion 1042, 1052 is welded to the adjustment device 107 and more particularly to the plate 108.

In particular, each of the first and second telescopic bars 104, 105 may comprise a sliding element 1044, 1054 engaged in its hollow body 1041, 1051 opposite the sliding portion 1042, 1052 engaged in its hollow body 1041, 1051, said sliding element 1044, 1054 comprising a longitudinal end connected (in particular welded) to the first bearing member 101 (where applicable, this end is the longitudinal end 104a of the first telescopic bar 104 connected to the first bearing member 101, or is the longitudinal end 105a of the second telescopic bar 105 connected to the first bearing member 101), the sliding of said element 1044, 1054 relative to said hollow body 1041, 1051 being inhibited in the locking configuration, preferably by means of a clamping collar 1045, 1055.

The clamping collars 1045, 1055 and/or the clamping rings 1043, 1053 may each be manually operated and of the same type, for example by means of a crank integrated into it, or operated requiring the use of a tool such as an Allen key.

The connecting element 106 may be arranged between the first telescopic bar 104 and the second telescopic bar 105. In this case, the telescopic device 100 may comprise, as illustrated for example in FIGS. 2, 5, and 7 (in FIG. 7, the connecting element 106 is removed for clarity):

• • first fixing tabs 120 extending from the first telescopic bar 104 and staggered between the first bearing member 101 and the second bearing member 102;
  • second fixing tabs 121 extending from the second telescopic bar 105 and staggered between the first bearing member 101 and the second bearing member 102;
  • assembly members 123.
    for each tab selected from the first and second fixing tabs 120, 121, said tab is engaged in the connecting element 106 and traversed by one of the assembly members 123 cooperating with the connecting element 106 in order to secure the connecting element 106 to said tab. This allows each of the first and second fixing tabs 120, 121 to be fixed to the connecting element 106 by means of one of the assembly members 123.

The first fixing tabs 120 can be welded to the first telescopic bar 104, in particular to its hollow body 1041.

The second fixing tabs 121 can be welded to the second telescopic bar 105, in particular to its hollow body 1051.

The assembly members 123 can be screws.

In particular, for proper alignment of the connecting element 106 between the first telescopic bar 104 and the second telescopic bar 105, the connecting element 106 can comprise opposing edges shaped to conform, at least locally, to the shape of the corresponding first or second telescopic bar 104, 105.

It has been mentioned above that the first and second bearing members 101, 102 allow opposing forces to be exerted on the first and second faces 1001, 1002. When these first and second faces 1001, 1002 are those of the frame 1000, additional support can be obtained by using additional faces of the frame resulting from shoulders 1005, 1006 formed in the uprights of the frame 1000 (FIG. 1), these additional faces forming an angle with the first and second faces 1001, 1002. In particular, these additional faces of the frame are orthogonal to the first and second faces 1001, 1002.

To this end, the telescopic device 100 may comprise:

• • a first clamping member 124 configured to exert a clamping force between a bearing surface 124a of the first clamping member 101 and a lateral face of the first bearing member 101 (in particular opposite said bearing surface 124a of the first clamping member 124); and/or
  • a second clamping member 125 configured to exert a clamping force between a bearing surface 125a of the second clamping member 125 and a lateral face of the second bearing member 102 (in particular opposite said bearing surface 125a of the second clamping member 125).
    Thus, the first clamping member 124 can form, with the first bearing member 101, a clamp configured to exert a clamping force in a direction forming an angle, in particular a right angle, with the extension direction of the telescopic system 103. Moreover, the second clamping member 125 can form, with the second bearing member 102, a clamp configured to exert a clamping force in a direction forming an angle, in particular a right angle, with the extension direction of the telescopic system 103.

The connecting element 106 can comprise a cavity 114 adapted to receive the rod 110 depending on the separation distance d1, as shown, for example, in FIG. 4. This allows for a wide range of setting of the telescopic device 100, in particular by allowing its length to be reduced to a minimum without interference from the rod 110, which would otherwise abut against the connecting element 106.

According to a particular embodiment, the first and second members 101, 102 have identical bearing surfaces.

The shown embodiments show two unique opposing bearing members 101, 102. However, it is entirely possible to provide two independent first bearing members, respectively connected to the first telescopic bar 104 and the second telescopic bar 105, and two independent second bearing members opposite the first bearing members, for example, associated with the same adjustment mechanism 109 allowing them to be moved simultaneously, or with two independent adjustment mechanisms allowing each of the second bearing members to be moved independently. In the case of two first bearing members, the first and second telescopic bars may be linked to each other to allow simultaneous length adjustment, or not linked to allow independent length adjustment.

The invention also relates to a device 1000 for physical activity comprising a telescopic device 100 as described and a sports accessory 126 secured to the telescopic system 103.

This sports accessory 126 can be the connecting element 106 (not shown) or a sports accessory 126 mounted on the connecting element 106 (see, for example, FIG. 1).

The sports accessory 126 can be a beam, for example, made of wood, equipped with grips 127. The grips 127 are intended, in particular, to be grasped by a user so that they can perform exercises such as pull-ups.

The telescopic device 100 finds an industrial application in the field of sports, in particular by allowing two opposite faces to be functionalized by installing the telescopic device 100 on them so that it is held in place.