EP0521490B1 - Arrangement of two construction elements telescopically connected together - Google Patents

Abstract

Two constructional elements (11, 12) connected telescopically to one another have a radial bore (13) equipped with a thread (39) and an axially descending groove (17). Screwed into the bore (13) is a grub screw (14), the conical tip (15) of which comes into engagement with the flanks (18, 19) of the groove (17), in order either to fix the two constructional elements (11, 12) relative to one another or to brace them axially relative to one another.

Description

The invention relates to an arrangement of two telescopically interconnected components, one of which has an externally accessible, through to the other component through bore, into which a screw is screwed, and the other in alignment with the bore one in the telescopic direction extending elongated groove, the depth of which increases from one end to the other in the telescopic direction.

Examples of such arrangements are door handles connected with a handle pin (DE-OS 24 15 905), rod systems with projecting metal connecting pins or plastic sleeves having metal sleeves which are to be connected axially to one another (DE-PS 26 32 696), or between two walls clampable support rods that contain a spreader pin (DE-PS 26 29 186).

In all of these arrangements, it is important to fix a certain relative position after pushing the two components together. This can be done, for example, in door handle arrangements by screwing a grub screw into a radial threaded hole in the door handle neck, which grips into a recess at the end of the handle pin, which is inserted into the complementary axial channel of the handle neck (DE-OS 24 15 905). By tapering the recess in the trigger direction of the trigger neck can also be guaranteed be steady that the axial pull on the door handle increases the resistance to pulling the two door handles apart.

It is also known (DE-AS 26 01 759) to screw a radial grub screw through the pusher neck into an axial groove of the pusher pin, the depth of the groove decreasing axially outward from the lock nut. In this way too, increased resistance to pulling off the door handles is ensured.

Furthermore, from the German utility model DE-U-81 23 148 a door handle connection with a handle mandrel is known which engages in the inner square of the neck of door handles and penetrates the inner square of a lock groove. The handle mandrel consists of two right-angled cross-sectional longitudinal halves against which at least the pressure screw guided in the neck of the door handle can be tightened Each recess has a flat that forms a right angle with the side with which the longitudinal half faces the other longitudinal half.

Finally, from the German utility model DE-U 1 964 112, a door handle with a fastening screw which is anchored on the handle mandrel by digging and tapered towards the free end in a fastening screw, in which the handle pin has a radially resiliently expandable clamping sleeve in a bore running in the axial direction, which has a Longitudinal slot exposed to the fastening screw, on the edges of which the flanks of the fastening screw dig.

A problem with the axial fixation of two telescopically interconnected components by means of a radial grub screw is that the surface contact between the screw and the groove is limited, in particular in the case of an elongated groove with a continuously increasing or decreasing depth, which limits the screw and the groove , whereby the screw and the groove are heavily loaded when trying to pull the two parts apart or push them together.

The aim of the invention is to provide an arrangement of two telescopically interconnected components of the type mentioned, in which the largest possible contact between the screw and the groove is always guaranteed regardless of the depth of the groove at the connection point.

To achieve this object, the arrangement according to claim 1 is provided.

This design ensures that at least one of the flanks of the groove, but preferably both flanks of the groove are in a theoretically linear, but practically flat contact with one another, so that the screw not only penetrates with its tip into the groove base, but the flank ( n) primarily establish the force-transmitting contact.

According to the invention, a roll-off effect is achieved by the lateral displacement of the screw and groove, which can be used for a targeted relative displacement of the two components.

A first embodiment of the invention is characterized by claim 2. So here both flanks of the groove are available for the power transmission from the screw.

According to claim 3, the slope should be so small that when the screw is tightened, self-locking occurs in the sense that the telescopically connected components maintain their relative position when screwed in. For this reason, the slope of the bottom of the groove should be designed relative to the telescopic displacement direction according to claim 4.

Such an embodiment is suitable e.g. For fastening door handles to a handle pin, provided that only the relative position to the handle pin determined by sliding the handle should be maintained.

However, the slope of the groove can also be made so large that the screw screw slides down along the groove, the two telescopically connected components being displaced relative to one another in the telescopic displacement direction. In this case the slope must be much steeper and e.g. be chosen according to claim 6.

In the aforementioned embodiment, depending on the direction in which the groove becomes deeper, the two components can be clamped axially in one direction or the other by screwing in the screw. In this embodiment, the axial pull apart or pushing together of the components effectively avoided because of the much more steeply increasing groove here.

Since in the inventive rolling process the screw is also moved in its axial direction towards the groove, the pitch of the thread and the slope of the groove should be designed according to claim 7. In other words, the screw should not get stuck in the groove when the flank begins to be touched, but should first perform the axial rolling movement. If the two components are then clamped to one another to the desired extent, for example by coming to rest against one another or against a stop, the screw can then be forcibly screwed in, whereby both flanks of the groove also come into contact by elastic or plastic deformation the conical tip of the screw.

In the embodiment according to claim 7, the slope of the bottom of the groove should be chosen according to claim 8.

Since the essentially conical tip of the screw has different circumferential lengths depending on the radius when it comes into engagement with the flat flanks, the rolling operation can only take place with a precisely conical tip by partially rubbing the conical tip on the flank. In order to keep this friction to a minimum, the special embodiment according to claim 9 be provided. Here, the frictional connection between the conical tip and flank is axially limited.

The axial bracing of the two components can be further promoted by the measures of claim 10 by working not only with frictional engagement, but also with positive engagement between the conical tip and the associated flank.

In order to attract as little attention as possible from the outside, the screw should be a grub screw, which should have an Allen key opening for transmitting the required clamping forces.

So that the screw can work something into the material of the groove 17 to increase the friction, the embodiment according to claim 12 is advantageous.

Advantageous applications of the invention are characterized by claims 13 to 15.

Fig. 1

die teilweise geschnittene Seitenansicht eines Ausschnittes eines an einem Drückerstift befestigten Türdrückers,

Fig. 2

eine Ansicht nur des Drückerstiftes nach Fig. 1 in Richtung des Pfeiles II in Fig. 1,

Fig. 3

einen Schnitt des Drückerstiftes nach Linie III-III in Fig. 1,

Fig. 4

einen Axialschnitt durch einen auf einem Drückerstift angeordneten Türdrückerhals mit einer gegenüber den Fig. 1 bis 3 modifizierten Befestigungsvorrichtung,

Fig. 5

einen zu Fig. 4 analogen, jedoch verqrößerten schematischen Schnitt einer gegenüber Fig. 4 modifizierten Ausführungsform,

Fig. 6

einen ähnlichen Schnitt wie Fig. 5 einer weiteren Ausführungsform,

Fig. 7

einen ähnlichen Schnitt wie Fig. 5 einer weiter abgewandelten Ausführungsform,

Fig. 8

eine Draufsicht nur auf den Drückerstift der Fig. 7 in Richtung des Pfeiles XIII in Fig. 7, jedoch in verkleinertem Maßstab,

Fig. 9

einen Schnitt nach Linie IX-IX in Fig. 7,

Fig. 10

eine schematische Schnittansicht einer Türdrückeranordnung mit der erfindungsgemäßen Befestigungsvorrichtung,

Fig. 11

eine schematische Schnittansicht zweier an einem Türblatt angeordneter Griffe, welche mittels der erfindungsgemäßen Befestigungsvorrichtung angebracht sind und aus Einzelteilen bestehen, die erfindungsgemäß miteinander verbunden sind, und

Fig. 12

eine schematische Schnittansicht einer zwischen zwei Wänden angeordneten Tragstange mit einer erfindungsgemäß ausgebildeten Spreizvorrichtung.

The invention is described below, for example with reference to the drawing; in this shows:

Fig. 1

the partially sectioned side view of a section of a door handle attached to a handle pin,

Fig. 2

1 in the direction of arrow II in FIG. 1,

Fig. 3

2 shows a section of the trigger pin according to line III-III in FIG. 1,

Fig. 4

3 shows an axial section through a door handle neck arranged on a handle pin with a fastening device modified compared to FIGS. 1 to 3,

Fig. 5

4 shows a schematic section, analogous to FIG. 4, but enlarged, of an embodiment modified compared to FIG. 4,

Fig. 6

5 shows a section similar to FIG. 5 of a further embodiment,

Fig. 7

5 shows a section similar to FIG. 5 of a further modified embodiment,

Fig. 8

7 in the direction of the arrow XIII in FIG. 7, but on a smaller scale,

Fig. 9

7 shows a section along line IX-IX in FIG. 7,

Fig. 10

2 shows a schematic sectional view of a lever handle arrangement with the fastening device according to the invention,

Fig. 11

is a schematic sectional view of two handles arranged on a door leaf, which are attached by means of the fastening device according to the invention and consist of individual parts that are interconnected according to the invention, and

Fig. 12

is a schematic sectional view of a support rod arranged between two walls with a spreading device designed according to the invention.

According to FIG. 1, a hint of a door handle 11, which is only indicated, has an axial channel 21 with a square cross section, in which a handle pin 12 with a cross section complementary to the cross section of the axial channel 21 is arranged. The lock nut, not shown, is located in the direction of arrow 35, while the handle provided for actuation is provided in the direction of arrow 36.

According to FIGS. 1 to 3, a groove 17 is provided in the end region of the handle pin 12 facing away from the lock nut, which has in the direction of the axis 37 of the handle pin 12 the elongated shape which can be seen in particular from FIGS. 1 and 2 and essentially consists of two there are flanks 18, 19 arranged at an angle of 120 ° (FIG. 3) to one another. The two flat flanks 18, 19 are thus arranged essentially in a V-shape with respect to one another and meet at the bottom in a base 20 forming an edge.

The neck of the door handle 11 and the handle pin 12 are telescopically displaceable in the direction of the axis 37. The base 20 of the groove 17 forms an angle α = 10 ° with the telescopic displacement direction or the axis 37, so that the groove 17 deepens linearly in the direction 35 towards the lock nut. The deepest end of the groove 17 facing the lock nut 35 is designed as a conical half-bore 17 '.

At the flattest end of the groove 17, the flanks 18, 19 merge directly into the surface 38 of the pusher pin 12 at this point. Since the flanks 18, 19 are arranged according to the invention in all cross sections at the same angle to one another, increasingly higher and vertically extending side flanks 17 ″ are provided in the deeper regions of the groove 17.

Radially opposite the groove 17, the lever handle has a radial bore 13 provided with a thread 39, into which a grub screw 14 provided with an Allen key 34 is screwed with a flat conical tip 15. The cone angle of the cone tip 15 is 120 ° and thus corresponds to the angle between the flat flanks 18, 19 of the groove 17.

If, in the position of the door handle 11 shown in FIG. 1 relative to the door handle pin 12, the screw 14 is turned downwards by inserting an Allen key into the correspondingly designed polygonal opening 34 and turning the Allen key, the flanks 18, 19 of the groove 17 come with the cone tip 15 in a continuous engagement, while the foremost point 15 'of the tip 15 comes into contact with the groove base 20. By screwing the screw 14 accordingly, a comparatively large contact surface is created between the screw 14 and the pusher pin 12, especially when the screw 14 is made of hard material, the flanks 18, 19 and the base 20 of the groove 17 against it consist of soft material so that the tip 15 can dig somewhat into the material of the pusher pin 12.

In the position shown in solid lines in Fig. 1, the screw 14 is quite at the beginning catch the groove 17 where it is still comparatively flat.

A further possible slide-on position of the door handle 11 on the handle pin 12 is illustrated in dashed lines, where the screw 14 lies opposite a substantially deeper part of the groove 17. In this case, the screw 14 must be screwed into the threaded bore 39 much deeper in order to come into contact with the flanks 18, 19 or the bottom 20 of the groove 17 which are lower at this point. By tightening the screw 14, however, a flawless and comparatively large-area connection between the screw 14 and the handle pin 12 is also produced in the relative position between the door handle 11 and the handle pin 12, indicated in dashed lines.

Due to the bevel α of the groove 17, it is also ensured that when the handle 11 is pulled in the direction of arrow 36, the connection between the door handle 11 and the handle pin 12, which has already been made by tightening the screw 14, becomes rather stronger because of such a pull the tip 15 is pulled in the direction of the rise of the groove 17.

The slope α is chosen so small in the embodiment of FIGS. 1 to 3 that the screw 14 can be tightened in any relative position of the door handle 11 and the handle pin 12 without the two parts being axially displaced relative to each other.

However, the slope α could also be made significantly steeper, for example by giving it a length of 45 °. In this case there would be no self-locking Enter more and the handle 11 would be moved as the screw 14 is screwed in progressively so that the screw 14 reaches ever deeper points in the groove 17. In this way, the door handle 11 and the handle pin 12 could be braced axially against each other.

In the following figures, the same reference numbers denote corresponding components as in FIGS. 1 to 3.

4, the door handle 11 shown in cross section perpendicular to the axis of rotation 37 consists of an outer plastic jacket 11a and an inner metal jacket 11b. The groove 17 in one square surface of the pusher pin 12 is formed in the same way as in FIGS. 1 to 3. In contrast to the embodiment according to FIGS. 1 to 3, however, in the embodiment according to FIG. 4, the axis 23 of the screw 14 is laterally displaced relative to the base 20 of the groove by a small piece 40, so that the conical tip 15 initially only with the Flank 18 of the groove 17 comes into engagement.

For this reason, the conical tip 15 rolls on the flank 18, the pusher pin 12 being shifted accordingly in the axial direction. The thread of the screw 14 is now designed so that when the screw 14 is turned, the handle 11 in the illustration according to FIG. 1 is pushed further in the direction of the arrow 35 onto the handle pin 12, the screw 14 corresponding to the increasing depth of the groove 17 penetrates deeper into it. If the additional door handle or other stop that is usually provided at the other end of the handle pin 12 strikes the opposite door leaf, the other hears Bracing movement of the pusher 11 and the pusher pin 12, and the screw 14 now digs a little into the material of the flank 18, preferably until the other flank 19 comes into engagement with the cone tip 15. In this way, the axial bracing is fixed and a pulling off of the door handle 11 from the handle pin 12 in the direction of arrow 36 (FIG. 1) is effectively avoided.

Since the circumference of the conical tip 15 widens continuously from the foremost point 15 ′ to the rear, a geometrically perfect rolling movement on the flank 18 cannot take place with an exactly conical configuration of the tip 15 according to FIG. 4. Between certain areas of the tip 15 and the flank 18 there are actually certain rubbing relative displacements. Overall, however, even with the precisely conical design of the tip 15, a rolling movement that ensures the axial bracing takes place.

However, in order to achieve a geometrically perfect rolling movement, the approximately conical tip 15 can be of somewhat spherical or convex curvature according to FIG. 5, so that with the displacement 40 still present, the conical tip 15 along a limited axial circumferential region 24 on the flank 18 is present. However, the convex curvature should be so slight that when the screw 14 is finally tightened, the tip 15 can dig into the softer material of the pusher pin 12 such that the tip 15 ultimately lies completely against the flanks 18, 19.

6, the limited peripheral area 24 can also be realized by a slightly protruding annular bead 41 on the conical tip 15, which then with the flank 18 comes into contact. The bead 41 should, however, only protrude slightly beyond the conical tip 15 so that when the screw 14 is finally tightened, the bead 41 digs into the material of the pusher pin 12, so that, in this embodiment as well, the conical tip 15 ultimately completely on both flanks 18 , 19 comes to the plant.

In the exemplary embodiment according to FIGS. 7 to 9, projections 25 are provided on the outer circumference of the conical tip 15 at regular angular intervals, which, when the screw 14 is screwed in, either dig into the softer material of the trigger pin 12 or with corresponding depressions 26 provided in the flank 18 Work together like a gear connection.

In this way, when the screw 14 is screwed in, an even stronger axial tensioning force is transmitted to the trigger pin 12. However, so that the screw 14 can be screwed in even further until the flank 19 is touched after the desired bracing has been produced, the material of the pusher pin 12 should be so soft that the projections 25 can dig into the material of the groove 17.

In the exemplary embodiments according to FIGS. 5 and 6, a screwdriver slot 34 'is provided in the screw 14 instead of the hexagon socket opening 34 according to FIGS. 1 to 4.

By arranging the peripheral area 24 according to FIG. 5, the annular bead 41 according to FIG. 6 or the ring of projections 25 at different axial heights of the tip 15, the size of the force transmission can be changed from the tool actuating the screw 14 to the push pin 12. The deeper the peripheral region 24 or the ring of projections 25 is arranged on the tip 15, an even greater axial clamping force can be transmitted with the tool. Accordingly, digging the conical tip 15 into the material of the groove 17 is also favored.

Fig. 10 shows a door leaf 31, on one side of which a lock 42 with a lock nut 43 is arranged, which is penetrated by a handle pin 12. The handle 11 has the axial channel 21 for receiving the protruding end of the handle pin 12, in which the groove 17 according to the invention is provided, which lies radially opposite the screw 14 in the door handle 11, which is only indicated by dashed lines. The opposite end of the handle pin 12 is fixed in the door handle 22 arranged on the other side of the door leaf 31.

The two lever handles 11, 22 are rotatably mounted with their necks in the usual manner in rosettes 44, 45, which are fixed to the door leaf 31 by screws 46, 47.

After a helical spring 48 is arranged between the neck of the door handle 22 and the lock nut 43, in the exemplary embodiment according to FIG. 10 the groove 17 should be designed as flat as according to FIGS. 1 to 3 so that a self-locking takes place when the screw 14 is screwed in .

However, one could also omit the coil spring 48 and let the neck of the door handle 22 rest directly on the lock nut 43. In this case, an axial bracing of the two door handles 11, 22 could also be brought about by using the embodiment according to FIGS. 4 to 9.

However, as already mentioned above, the axial bracing can be brought about not only by displacing the screw 14 relative to the groove 17 according to FIGS. 4 to 9, but also by a very steeply falling groove 17, as is the case in FIG. 11 is the case with the connecting pins 12 ".

11 shows two different exemplary embodiments of the invention.

U-shaped handles 49, 49 'are attached to a door leaf 31 on opposite sides by means of the fastening according to the invention. For this purpose, a connecting pin 12 ′ extends from the legs of the handle 49 on the left in FIG. 11 through through holes 32 in the door leaf 31 into an axial channel 21 ′ of the opposite handle 49 ′. The end of the connecting pin 12 'located in the left handle 49 is provided with a thread 27 and can accordingly be screwed more or less deeply into a corresponding threaded bore 50 of the handle 49.

The end of the connecting pin 12 'protruding into the axial channel 21' has on one circumferential side the groove 17 according to the invention, into which the screw 14 screwed into the radial bore 13 engages.

Due to the formation of the groove 17 according to FIGS. 4 to 9, the two handles 49, 49 'can be clamped against one another or against the door leaf 31 by screwing in the screw 14. Because of the oblique design of the groove 17, an exercise of considerable tensile forces in the direction of the arrows K is made possible at the same time.

According to the invention, each handle 49, 49 'consists of a plastic tube 29 with a metal inner tube 51 and a plastic jacket 28.

From the ends of the tubes 29, connecting pins 12 ″ extend in both directions, which are firmly connected to the metal tube 51 and extend over the ends of the tubes 29 into axial channels 21 ′ of node elements 11 ′ axially adjoining the tubes 29, which also act as plastic tubes are formed with a plastic jacket 28 'and a solid metal core 51'. There, the connecting pins 12 ″ have the groove 17 according to the invention, into which the screw 14 is screwed.

According to the invention, the groove 17 at the end of the connecting pin 12 ″ is designed to be substantially steeper than in the previous exemplary embodiments, so that the screws 14 screwed into the groove 17 are not self-lockingly clamped there, but instead exert an axial force A on the connecting pins 12 ″ when they are screwed in , which leads to the fact that the node elements 11 'and the plastic tubes 29 are pressed against one another at 52. In this way, the node elements 11 'and the plastic tubes 29 can be clamped against one another with any desired axial clamping force. This is important because plastic expands due to temperature and moisture influences and such an axial bracing must be brought about during manufacture that under 52 no gap (for example when the temperature drops) can open under any circumstances. It is important that only the plastic shells 28, 28 'but not the metal cores 51, 51' touch.

The axial bracing effect brought about by the bevel 17 can be caused by the lateral displacement of the Screw 14 and the groove 17 according to FIGS. 4 to 9 are further reinforced.

12 shows the application of the invention to a support rod 11 ″ which is to be arranged between two walls 33.

The support rod 11 ″, consisting of a tubular metal core 51 ″ and a surrounding plastic jacket 28 ″, is supported at one end via an intermediate member 53 on one wall 33. A projection 54 of the intermediate member 53 engages in a bore 55 of the wall.

At the opposite end, a cylindrical expansion member 12 '' 'is axially displaceable in the sliding fit in the inner tube 51' ', which is designed as a hollow-cylindrical plastic body 58 with an embedded metal pin 59 of smaller diameter and with a facing 56 which extends beyond the support rod 11' '.

In the plastic body 58 there is the groove 17 according to the invention, in which a screw 14 engages, which is screwed into the radial bore 13 of the support rod 11 '.

The metal pin 59 of the expansion member 12 '' 'protruding towards the wall 33 extends into a suitable bore 57 in the wall 33.

After the support rod 11 ″ has been brought between the two walls 33 with the spreading member 12 ″ ″ and the screw 14 unscrewed, the screw 14 is screwed radially into the bore 13, due to the formation of the groove 17 according to FIGS 9 the expansion member 12 '''is successively extended in the direction of the wall 33. The protruding end of the Metal pin 58 of the expansion member 12 '''in the bore 57, and the plastic body 58 rests against the wall 33, so that the support rod 11''is clamped between the two walls 33.

Claims (15)

1. Assembly comprising two components (11, 12) which are telescopically connected to one another wherein one of said components (11) has an externally accessible bore (13) with a thread (16) which extends up to the other component (12) perpendicular to the direction of telescoping, with a screw (14) with an at least substantially conical tip (15) being screwed into the bore, wherein the other said component (12) has, in alignment with the bore (13), an elongate groove (14) with a cross-section complementary to the conical tip (15) of the screw (14), characterised in that the other component 12 is made in one piece; in that the elongate groove (17) has a depth which increases from one end to the other end in the direction of telescoping and in which the screw (14) engages to such a depth that the conical tip (15) presses at least against one of the two flanks (18, 19), in that the tip (15) of the screw (14) and the base (20) of the groove (17) are fractionally offset transverse to the direction of telescoping and to the axis of the bore (13) so that on turning in the screw (14) its tip (15) contacts just one flank (18) of the groove (17), and indeed that flank of the groove which, on turning the screw (14) inwardly, is displaced relative to the component (11) containing the screw (14) in that telescoping direction in which the depth of the groove (17) increases due to the conical tip (15) of the screw rolling off against it.
2. Assembly in accordance with claim 1, in which the tip (15) of the screw (14) and the base (20) of the groove (17) are aligned and the conical tip (15) of the turned-in screw (14) presses against both flanks (18, 19) and preferably also against the base (20) of the groove (17).
3. Assembly in accordance with claim 2, in which the inclination of the base (20) of the groove (17) is only so large that on turning in the screw (14) self-locking still occurs.
4. Assembly in accordance with claim 3, in which the inclination (α) of the base (20) of the groove (17) is greater than 5° and smaller than 10°, and preferably smaller than 20°.
5. Assembly in accordance with claim 2, in which the inclination (α) of the groove (17) is so large that on turning in the screw (14) its tip (15) slides down the inclination (α) of the groove (17) and thereby correspondingly telescopically displaces the components (11, 12) into one another.
6. Assembly in accordance with claim 5, in which the inclination (α) is larger than 30° and smaller than 60°, and is in particular smaller than 45°.
7. Assembly in accordance with one of the preceding claims, in which the pitch of the thread (16) and the inclination (α) of the base (20) of the groove (17) are so matched to one another that on turning in the screw (14) the tip (15) of the screw (14) moves in the direction of the base (20) of the groove (17) at least by the amount by which the groove (17) becomes deeper through the displacement in the telescoping direction.
8. Assembly in accordance with claim 7, in which the inclination (α) of the base (20) of the groove amounts to 10° to 30° and in particular to approximately 20°.
9. Assembly in accordance with claim 7, in which the tip (15) of the screw (14) and/or the flanks (18, 19) of the groove (17) are at least partly convexly curved in cross-section perpendicular to the telescoping direction in such a way that on turning in the screw (14) essentially only a restricted peripheral region (24) of the tip (15) in the direction of the screw axis (23) comes into engagement with the associated flank (18).
10. Assembly in accordance with one of the preceding claims, in which engagement means (25, 26) are provided along the periphery of the tip (15) or along a restricted peripheral region (24) of the tip (15) and/or in the flank (18) on which the tip (15) acts and ensure in the telescoping direction an at least partial form fitted connection of the tip (15) and the flank (18).
11. Assembly in accordance with one of the claims, in which the screw is a grub screw (14) which is preferably actuatable by an Imbus key.
12. Assembly in accordance with one of the preceding claims, in which the screw (14) is harder, at least in the region of its tip (15) than the flanks (18, 19) of the groove (17).
13. Assembly in accordance with one of the preceding claims, in which the two components which are telescopically connected to one another are a door handle (11) with a non-round axial channel (21) and with the bore (13) which has the screw (14) and a door handle shaft (12) which is complementary to the axial channel (21) and which has the groove (17).
14. Assembly in accordance with one of the claims 1 to 12, in which the two components which are telescopically connected together are a plastic tube (11'), which preferably has a tubular or solid metal core (51') and is provided with at least one axial channel (21') and has the bore (13) with the screw (14) at least at one end in the region of the axial channel (21'), and a connecting shaft (12', 12"), complementary to the axial channel (21) which has the groove (17) and projects axially from a further plastic tube, preferably a plastic tube having a tubular or solid metal core (51, 51'), and wherein the two plastic tubes (11', 29) directly contact one another axially or are arranged on opposite sides of a leaf, in particular a door leaf (31) having corresponding through apertures (32) and are also secured relative to one another by turning the screw (14) into the groove (17), at least in accordance with the claims 2 to 4, and preferably however mutually clamped against each other in accordance with one of the claims to 5 to 13.
15. Assembly in accordance with one of the claims 1 to 12, in which the two components which are telescopically connected to one another are a bar (11") which can be inserted between two walls (33), has an axial channel at at least one end and at least one bore (13) with the screw (14), and a spreading member (12"') complementary to the axial channel (21"), which has the groove (17).

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