EP3906977A1 - Connecting device and connection concept for a plug-in handle of a vibration training device - Google Patents

Abstract

The present invention relates to a plug connection (V) which has a socket (1) and a plug (10). The socket (1) comprises a recess (2), in the bottom surface (2b) of which a positioning pin (4) is provided is, and a groove (3) which is provided in an inner surface of the recess (2) or on an outer surface of the positioning mandrel (4). The plug (10) comprises: a base plate (11) on which a hollow body ( 12) is attached, on which at least one connecting element (13) is provided, the recess (2) of the socket (1) being adapted to receive the hollow body (12) of the plug (10). This is at least one when plugged together The connecting element (13) of the plug (10) is adapted to engage with a respective complementary groove (3) of the socket (1), and the inside of the hollow body (12) is adapted to be connected to the positioning mandrel (4) of the Bush (1) to be engaged. Such a plug connection (V) is used, for example, in a training platform (T) with a plate or surface (O) in which a plurality of sockets (1) are integrated in the surface (O). The training platform (T) comprises at least one plug-in handle (S) which has a plug (10), the plug-in handle (S) with the plug (10) being adapted to be plugged into the at least one socket (1) Users can fix a plug-in handle (S) securely, but still releasably, in just one socket (1) in various positions.

Description

The present invention relates to a connection concept for platforms and handles in sports equipment, in particular vibration training equipment.

Vibration training devices are enjoying increasing popularity in recent years, as they can be used for sporting exercises, such as push-ups, and the vibration that is transmitted from the vibration training device to the user via the handles, the muscle stimulation is increased even further, thereby increasing Fat burning and improved muscle building can be effected.

Until recently, vibration training devices were only available in professional sports facilities such as fitness studios, but recently they have become more and more compact and can therefore also be used at home.

The document is known in the prior art DE 20 2017 004 115 U1 in which a vibration training device is disclosed. In this vibration training device, in particular training handles are disclosed which can be attached to an upper plate or housing part of the vibration training device. For this purpose, holding devices are provided in the surface of the vibration training device, which are designed as recesses, and the handles have complementary fastening devices, which are designed such that the handles can be firmly but detachably inserted into the recess for safe use of the vibration training device.

In this vibration training device, a handle has two feet which can be inserted into a pair of corresponding recesses on the surface of the vibration training device. It is also disclosed that there are different recesses on the surface of the vibration training device, and that the handles can be inserted into two recesses assigned to one another for different applications.

Also known in the prior art is a platform for push-ups with different hand positions, which are described in the document CA 2,873,493 is shown.
In this document, various embodiments are disclosed, here too there are plug-in handles which can be inserted with two feet into a combination of two holes. There are various combinations of holes on the surface of the training platform, so that plug-in handles can be inserted parallel to the short side, parallel to the long side or at an angle. Various areas of application are disclosed on the surface of the vibration training device, which are transferred to the hole combinations with color codes - for example, suggested grip positions for training the shoulders, chest, triceps and back.
Another embodiment is in document CA 2,873,493 also reveals the possibility that the handles have only one foot, which in this case is polygonal, that is, hexagonal. In this case, it is sufficient that a foot is inserted into a hole on the surface of the vibration training machine.
However, this solution is not necessarily safe, since the one plug-in handle can easily fall out of the hole or can be lifted out of it by vibrations. This possibility harbors a certain risk of injury, since the handle can easily slip out due to tensile forces even during an exercise and the user could thus injure himself.

It is therefore the object of the present invention to provide a connecting device, for example for the surface of a vibrating board and plug-in handles, which eliminates the disadvantages mentioned above and which provides a firm and secure, but nevertheless detachable connection between the handle and the vibrating board allows in which several positions and positions of a plug-in handle are easily possible.

This object is achieved by a plug connection according to claim 1 and by a training platform according to claim 14. Further advantageous configurations are the subject matter of the dependent claims.

A plug connection according to the invention comprises a socket and a plug. The socket here comprises a recess, in the bottom surface of which a positioning pin is provided. This serves to stabilize the plug when it is plugged in and to make it easier to insert.
Furthermore, at least one groove is provided on the inner lateral surface of the recess or on the outer lateral surface of the positioning mandrel. The corresponding plug comprises a base plate to which a hollow body is connected. The hollow body is intended to be inserted into the recess of the socket, the outer jacket surface of the hollow body resting against the inner jacket surface of the recess and the inner jacket surface of the hollow body being in engagement with the positioning mandrel. At least one connecting element is provided on the hollow body, and the recess of the socket comprises one or more grooves. In the mated state, the connecting element of the plug is adapted to engage with a complementary groove in the socket, and the inner surface of the hollow body is adapted to engage with the positioning mandrel of the socket.

Firstly, this allows easy insertion because the user can see in which direction he has to insert the plug into the socket. The presence of a connecting element on the plug and a corresponding groove in the recess also has the effect that the plug-in handle cannot be rotated in the inserted state and also does not wobble or become loose. This increases the safety in use. The connecting element is preferably designed like a feather key (but integrally with the hollow body and without compression) and further preferably has a rectangular cross section.

More preferably, the groove is provided on the inner lateral surface of the recess, and the connecting element is provided on the outer lateral surface of the hollow body. The groove is thus best visible to the user and the insertion of the plug into the socket is easiest.

More preferably, a plurality of grooves are provided on the depression. This makes it possible that only the grooves in the recess or the connecting elements on the plug are responsible for the positioning of the plug, and that a plug can be provided in different angular positions. If, for example, four grooves are provided (and correspondingly four connecting elements), the user has the option of performing the exercise in such a way that the plug-in handles are inserted in different angular positions (i.e. every 90 °) - without the need for this as with a plug-in handle with 2 feet according to the Prior art several wells would be necessary. If even more grooves are provided accordingly, a corresponding, even finer setting is possible, and more positions of a plug-in handle are then also possible in a recess. The presence of one or more grooves in the recess means that the user has several options for inserting the handle. It is thus possible for the user to be able to predetermine several angular positions which the user can easily find and use accordingly.

A plurality of, more preferably two, connecting elements are preferably provided on the hollow body. This increases the stability of the connection, and any shear forces caused by attempting to turn the plug (or the connected plug-in handle) onto a connecting element are thus reduced. Increased shear forces could cause the connector to wear out.

Furthermore, the recess, the hollow body and / or the positioning mandrel preferably have a cylindrical, conical or truncated cone shape.

A further fixing device is preferably provided on the hollow body and recess - more preferably on the end of the hollow body facing away from the base plate and on or near the bottom surface of the recess.

This has the effect that the connection is improved and thus becomes more stable and that the plug can only be pulled out of the socket with the application of a certain force - which improves the stability of the connection.

More preferably, at least one projection is provided as a further fixing device on the hollow body, and at least one recess is provided in the recess. The at least one projection is adapted to be in engagement with the recess in the assembled state. This has the advantage that the plug and thus the plug-in handle are correspondingly fixed at the bottom in the recess, that is to say in the socket, which further improves the stability of the plug-in connection.

Even more preferably, the at least one projection is adapted to protrude in the plugged-together state through a recess from the outer surface of the recess. This guarantees an even more secure and solid connection.

Even more preferably, a tab is attached to the outer surface of the recess above the at least one recess, which tab rests against the recess when it is not plugged together and is correspondingly pretensioned in the recess when the projection of the hollow body protrudes through the recess . This fixes the plug in the socket even better, and the plug is secured against simply falling out. An even higher tensile force is required to pull the plug out of the socket again, since the respective tab is pretensioned against the projection and at least the pretensioning force and the frictional force must be overcome in order to pull the plug-in handle out of the recess.

A groove is preferably provided in the tab which is adapted to be in engagement in the plugged-together state on the projection which protrudes from the recess.
This fixes the plug even better in the socket - and the force that is required to pull the plug out of the socket is increased even further.

More preferably, in the assembled state, the at least one projection presses the tab outward. This creates an increased friction effect and the plug is even better secured in the socket.

Preferably there is a training platform with a plate on which several sockets according to the present invention and several plug-in handles with plugs according to the present invention are provided. In this case, the plug-in handle with the plug is adapted to be plugged into the at least one socket.
If there are several grooves in the recess, the plug-in handles connected to the plugs can be inserted at different angles - the user thus has the option of inserting the plug-in handles parallel to the two edges of the platform. Depending on the number of grooves, several intermediate positions (at an angle to the edges of the platform) are possible between these positions.

The grooves do not have to be arranged symmetrically, i.e. at the same angular distance from one another - asymmetric arrangements can also be present here.

The grooves can preferably be colored with different colors.
A legend can then be attached to the surface of the platform - in which the individual colors indicate the exercises or the body areas to be trained and are explained accordingly.

More preferably, the platform is a vibration training device.

Fig. 1

zeigt eine isometrische Ansicht eines Steckers einer Verbindungsvorrichtung gemäß einer Ausführungsform der vorliegenden Erfindung.

Fig. 2

zeigt eine isometrische Ansicht einer Buchse gemäß einer Ausführungsform der vorliegenden Erfindung.

Fig. 3

zeigt eine Ansicht von unten auf eine Buchse gemäß einer Ausführungsform der vorliegenden Erfindung.

Fig. 4

zeigt eine Schnittansicht entlang der Linie E-E gemäß Fig. 3.

Fig. 5

zeigt eine weitere Schnittansicht entlang der Linie I-I gemäß Fig. 3.

Fig. 6

zeigt eine weitere Schnittansicht entlang der Linie K-K gemäß Fig. 3.

Fig. 7

zeigt eine Detailansicht eines Details aus Fig. 6.

Fig. 8

zeigt eine isometrische Ansicht einer Buchse von unten, wobei hier ein Steckgriff (nicht sichtbar) aufgesteckt ist.

Fig. 9

zeigt eine Detailansicht eines Details aus Fig. 8.

Preferred embodiments of the present invention are described in more detail below with reference to the accompanying drawings.

Fig. 1

Figure 11 shows an isometric view of a plug of a connector according to an embodiment of the present invention.

Fig. 2

Figure 13 shows an isometric view of a socket in accordance with an embodiment of the present invention.

Fig. 3

Figure 12 shows a bottom view of a socket according to an embodiment of the present invention.

Fig. 4

FIG. 13 shows a sectional view along the line EE according to FIG Fig. 3 .

Fig. 5

FIG. 11 shows a further sectional view along the line II according to FIG Fig. 3 .

Fig. 6

FIG. 11 shows a further sectional view along the line KK according to FIG Fig. 3 .

Fig. 7

shows a detailed view of a detail Fig. 6 .

Fig. 8

shows an isometric view of a socket from below, a plug-in handle (not visible) being attached here.

Fig. 9

shows a detailed view of a detail Fig. 8 .

Fig. 1 Figure 10 shows an isometric view of a connector 10 in accordance with an embodiment of the present invention. Only the plug 10 is shown here, the plug-in handle S is omitted here for the sake of simplicity. The plug 10 has a base plate 11 on which a hollow body 12 is placed, in the present invention a frustoconical hollow body. Two connecting elements 13 are placed on the edge of this hollow body 12 and are preferably formed integrally therewith. These are attached to the outer jacket surface of the hollow body 12. On the outer jacket surface of the hollow body 12, some projections 14 are also attached, which here have a knob shape and are provided on a side of the hollow body 12 facing away from the base plate 11.

Fig. 2 FIG. 11 shows an isometric view of a bushing 1 which is integrated into a surface O. FIG.
The socket 1 is basically circular and has a recess 2, which is circular in the present example. In the middle of the recess a positioning mandrel 4 is provided which has a truncated cone shape. Furthermore, eight grooves 3 are provided on the inner lateral surface of the recess 2, which, so to speak, widen the diameter of the recess.

Fig. 3 shows a corresponding plan view of a socket 1 from below. This is integrated in a surface O here. The outer contours of the grooves 3 become clear here. Some tabs 6 are provided between the grooves 3, which do not completely fill the space between the grooves.

Fig. 4 FIG. 13 shows a sectional view along the line EE, and here a plug-in handle S is also disclosed, which is shown in FIG Fig. 3 was not visible (since a view from below of the socket 1 is shown here). In Fig. 4 it becomes very clear how the plug-in handle S is inserted into a socket 1 by means of the plug 10. The socket 1 is integrated in a surface O, for example of a training device. In the left part of the Fig. 4 is an isometric view to see, in the right part accordingly a sectional view. The grooves 3 (their external view, here as a protuberance) and corresponding tabs 6 between the grooves 3 can again be seen on the socket. In particular, in the sectional view on the right-hand side, it can also be clearly seen that a positioning mandrel 4 is provided in the socket 1 and accordingly delimits the recess 2. The hollow body 12 of the plug 10 is inserted into the recess 2 or in engagement therewith. The connecting element 13 is provided on the outer surface of the hollow body 12 and is inserted into a groove 3 (not shown here). The plug 10 also has a base plate 11 at the top.

In Fig. 5 a further sectional view is shown, in this case along the line II in FIG Fig. 3 . Here, too, an isometric view is provided in the left part and a sectional view in the right part. A plug-in handle S is shown again, which is provided on a corresponding surface O. In the recess 2 here is the again Hollow body 12 to see which is inserted into this. In the middle of the recess is the positioning mandrel 4, which also rests on the hollow body 12 in the assembled state. Grooves 3 and also tabs 6 can also be clearly seen again, especially in the isometric view. Due to the slightly tapered shape of the hollow body 2 due to the dimensions of the recess 2 and the positioning mandrel 6, the connection in the lower part is somewhat narrower. However, in the lower part of the hollow body 12 it lies tightly in the recess 2, which is why a corresponding stability is generated.

In Fig. 6 a further sectional view can be seen, this time along the line KK in FIG Fig. 3 . Here, however, the entire figure is shown in a sectional view. The plug-in handle S is arranged on a surface O again. The base plate 11 is in turn adjoined by the hollow body 12, which is correspondingly inserted into the recess 2 and also rests on the positioning mandrel 4. Here, the inner surface of the hollow body 12 is in engagement with the outer surface of the positioning mandrel 4, but the outer surface of the surface of the hollow body 12 engages with the inner surface of the recess 2.

In Fig. 7 a corresponding detailed view is shown. It is clear here that the tab 6, which is provided with a certain pretensioning force, rests on the outside of the recess 2. A projection 14 is provided on the hollow body 12, and a corresponding groove 6a is provided in the tab 6 which, when plugged together, engages precisely with the projection 14 of the hollow body 12. This fixes, so to speak, the hollow body 12 in the recess 2 and therefore a greater force must be applied in order to pull it out again.

Fig. 8 shows again an isometric view of a socket 1 from below, which is integrated in a surface O. FIG. Here again, grooves 3 and tabs 6 are arranged alternately around the recess 2.

Fig. 9 shows a detailed view of the Fig. 8 , the connector being shown here in the mated state. Here two grooves 3 can be seen, between which a tab 6 is arranged. In this figure protrudes from the Recess 5 in a groove 3 a part of the projection 14 of the inserted plug out. The tab 6 presses against this projection 14 and exerts a certain pretensioning force, which is why it fixes it accordingly in the recess.

The present invention is not limited to the embodiment described above. Instead of the tabs 6 with grooves 6a and the projections 14, other fixing mechanisms are also conceivable, for example a spring which presses against an inserted plug.

The connecting element 13 and the groove 3 can also assume any desired cross-section, for example square, rectangular, semicircular, polygonal, semi-elliptical, etc.

Claims (16)

Plug connection (V), comprising a socket (1) and a plug (10), the socket (1) comprising: a recess (2), in the bottom surface (2b) of which a positioning mandrel (4) is provided, as well as a groove (3) which is provided in an inner lateral surface of the recess (2) or on an outer lateral surface of the positioning mandrel (4), and wherein the plug (10) comprises: a base plate (11) to which a hollow body (12) is attached, on which at least one connecting element (13) is provided, wherein the recess (2) of the socket (1) is adapted to receive the hollow body (12) of the plug (10), and wherein in the plugged-together state the at least one connecting element (13) of the plug (10) is adapted to engage with a respective complementary groove (3) of the socket (1), and the inside of the hollow body (12) is adapted to this is to be in engagement with the positioning mandrel (4) of the bushing (1). Plug connection (V) according to claim 1, wherein the at least one groove (3) is provided on the inner surface of the recess (2), and the at least one connecting element (13) is provided on the outer surface of the hollow body (12). Plug connection (V) according to one of the preceding claims, wherein a plurality of grooves (3) are provided on the recess (2). Plug connection (V) according to one of the preceding claims, wherein a plurality of connecting elements (13) are provided on the hollow body (12), preferably two. Plug connection (V) according to one of the preceding claims, wherein the hollow body (12) has a cylindrical, conical or truncated cone shape. Plug connection (V) according to one of the preceding claims, wherein the positioning mandrel (4) has a cylindrical, conical or truncated cone shape. Plug connection (V) according to one of the preceding claims, wherein a further complementary fixing device (5, 14) is provided on the hollow body (11) and recess (2), preferably in each case on the end of the hollow body (12) facing away from the base plate (11) and on or near the bottom surface (2a) of the recess (2) Plug connection (V) according to claim 7, wherein the further complementary fixing device (5, 14) has: at least one projection (14) provided on the hollow body (12), and at least one recess (5) provided in the recess (2), wherein the at least one projection (14) is adapted to be in engagement with the recess (5) in the assembled state. Plug connection (V) according to claim 8, wherein the at least one projection (14) is adapted to protrude through the recess (5) from the outer jacket surface (4m) of the recess (2) in the assembled state. Plug connection (V) according to claim 8 or 9, wherein a tab (6) is attached to the outer surface of the recess (2) above the at least one recess (5), which is pretensioned and is adapted to be attached to the respective recess ( 5) to be applied. Plug connection (V) according to claim 8 or 9, wherein a tab (6) is attached to the outer surface of the recess (2) above the at least one recess (5), which is pretensioned and is adapted to be attached to the respective projection ( 14), which protrudes from the recess (5) when plugged together. Plug connection (V) according to claim 11, wherein a groove (6a) is provided in the tab (6) which is adapted to lie against the respective projection (14). Plug connection (V) according to claim 12, wherein in the plugged together state the at least one projection (14) presses the tab (6) outwards. Training platform (T) with a plate or surface (O), in which one or more plug connections according to one of claims 1 to 13 are provided, in that several sockets (1) are integrated in the surface (O),
wherein the training platform (T) comprises at least one plug-in handle (S) which has a plug (10),
wherein the plug-in handle (S) with the plug (10) is adapted to be plugged into the at least one socket (1). Training platform (T) according to claim 14, wherein individual or all grooves (3) of the sockets (1) are marked in color. Training platform (T) according to claim 14 or 15, wherein the training platform (T) is designed as a vibration training device.

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