DE202010017706U1 - Clamping device for curtain rope - Google Patents

Abstract

Tensioning device (11) for tensioning a rope (37), which serves in particular to hold a curtain, with - a first tensioning part (15), - a second tensioning part (17), which tensioning parts (15, 17) interact by means of a threaded connection to increase or decrease the distance of the clamping parts (15, 17) along their common longitudinal axis (19), and - a support (13), which serves as a counter bearing for the first or the second clamping part (15, 17) and with which the clamping device (11) can be fixed on a base, characterized in that the first clamping part (15) consists of two symmetrical clamping parts (21, 23) which have a common cutting surface (24) and that on the first clamping part (15) along the longitudinal axis (19) a through opening (34) is provided, which serves to receive the rope (37) and which is formed in that a recess (33) is provided on the two clamping parts (21, 23) along the longitudinal axis (19) marriages.

Description

Field of the invention

The invention relates to a tensioning device for tensioning a rope according to the preamble of claim 1, a fastening device, in particular for fastening a tensioning device to a window frame according to claim 8 and a fastening device, in particular for fastening a tensioning device to a level base according to claim 13.

State of the art

For fastening curtains rope tensioning systems have existed for some time. The principle underlying the cable tension is based on the fact that a first clamping element with an external thread cooperates with a second clamping element with an internal thread. Characterized in that the first and the second clamping element will be screwed together whose distance is shortened to each other. At the second tensioning element a rope is fixed with a first end. The second end of the rope is fixed to another rope tensioning system or optionally at an angle. The first clamping elements or the clamping element and the angle are fixed to the ground by screw. When shortening the distance of the first and second clamping element to each other, the rope is tensioned. For a reliable mounting of the rope to the second clamping element this is guided through a through hole on the second clamping element and by means of a grub screw o.ä. jammed with the same. This system is relatively easy to assemble compared to curtain rails and also has a discreet appearance often desired in the interior trim.

A disadvantage proves in this cable clamping system that for rotating the second clamping element relative to the first clamping element always a tool is needed. This may be a fork wrench, which is attached to a designated flattened on both sides of the second clamping element for transmitting the torque. There are also variants with a passage opening transversely to the longitudinal axis of the second clamping element, through which a rod, for example an Allen wrench, is inserted and thus a sufficiently high torque: is transmitted to the second clamping element.

Another disadvantage is given by the fact that during the rotation of the second clamping element, the rope is inevitably mitverdrillt and is therefore exposed to additional loads.

Another disadvantage is that the clamping system is fixed by screws to the substrate and the surface of the substrate after removing the rope tensioning system has unsightly injuries.

The DE 201 07 752 U1 shows a curtain clip with a connector which is connected to a mounting frame unit. The connector includes a female member and a male member. At the first end of the connector, an internal thread is arranged, which cooperates with an external thread of the plug element. At the second end of the connector, a ball head clasp is arranged, which is rotatably received in a ball socket bore of the mounting frame unit. In a plug-in element axially arranged through hole a steel cable can be accommodated, which is fixed by means of a hold-down screw on the plug-in element. Therefore, a tool, for example an Allen wrench, is required for mounting the steel cable. Furthermore, the steel cable must be threaded into the through hole before it can be fixed with the hold-down screw. Although the steel cable can be clamped without tools, the plug-in element is to be held against the direction of rotation during the rotation of the socket element so as not to be twisted together with the socket element. The assembly and tension of the steel rope proves to be expensive in this curtain clip.

In the DE 297 22 144 U1 a suspension cable device for curtains is shown. A carrying cable is held on both sides in the cable bore of a clamping sleeve by means of a clamping screw. Previously, the carrying part must be guided with its two end through the rope bore of a clamping screw. The clamping screw is screwed into a sleeve-like fastening fitting, which is attached to a mounting bracket for fixing to a wall. The clamping screws on both ends of the support cable are screwed into the associated mounting bracket, so that the clamping sleeve are more or less pushed into the interior of the mounting hardware and the support cable is tensioned. However, the tension of the supporting cable can only be carried out with the aid of a tool. Furthermore, the implementation of the support cable is complicated by the clamping screws and the ferrules in the correct order and therefore not user-friendly.

Object of the invention

Object of the present invention is therefore to propose a rope tensioning device, which is easy to tighten. Another goal is to set the rope without effort on the rope tensioning device. It is also an object to show a rope tensioning device which can be fixed to the same without damaging the ground.

description

According to the invention the object is achieved in a tensioning device for tensioning a rope according to the preamble of claim 1, characterized in that the first clamping part consists of two symmetrical clamping parts, which have a common cutting surface and that on the first clamping part along the longitudinal axis, a through hole is provided which the Receiving the rope is used and which is formed by the fact that at the two clamping parts in each case along the longitudinal axis a recess is provided. Due to the bipartite of the first clamping part, it is not necessary to thread the rope in a passage opening on the first clamping part, but the rope is inserted in a simple manner between the two clamping parts. A further advantage is that the clamping parts can be produced in one-piece injection-molded molds of simple design without having to subsequently cut a thread into the first clamping part. This form of production is inexpensive and can be carried out with high cycle rates. The inclusion of the rope in the first clamping part designed by the intended passage opening as very easy, as this is only inserted into the recess of the first clamping member and the second clamping member is placed over the first. The clamping effect of the first clamping member, which acts on the rope, is very good, since it acts along the entire longitudinal axis of the first clamping part.

In a preferred embodiment, the second clamping member is rotatably supported about the longitudinal axis on the support. The clamping device according to the invention has the advantage that can be done by the holder of the second clamping part on the support of the tensioning process of the rope with one hand. This can be attributed to the fact that the tensioning part, which is held by the support, is only to be twisted during the tensioning process and can no longer be held manually until the threads of the two tensioning parts are in operative connection with one another. The tensioning device is suitable for receiving ropes, preferably wire ropes, as well as for receiving cords, such as nylon cords.

In this preferred embodiment, the first clamping part has an external thread, which cooperates with an internal thread of the second clamping part. In addition, the second clamping part is held on the support. This ensures that the first clamping part is pulled into the same by turning the second clamping part, without the two clamping parts must be laboriously aligned with each other to cooperate.

Advantageously, nubs or recesses are provided on the clamping parts along their common cut surface, which align the clamping parts form-fitting to one another. As a result, the merging and aligning of the two clamping parts is easy and quick to perform.

In order to further increase the clamping force which acts on the rope from the first tensioning part, a plurality of elevations are advantageously provided in the depressions along the longitudinal axis. In order to further increase the pull-out safety of the rope from the first clamping part, it is conceivable that the rope overhangs the first clamping part and at this point of the rope a node, a clamping screw o. Ä. Are mounted.

In order to be able to generate a clamping force on the first clamping part, one end of the first clamping part advantageously has the shape of a wedge.

In a preferred embodiment, the wedge is flattened on at least one side parallel to the longitudinal axis. Since this flattening is positively received in the support, the first clamping part is reliably secured against rotation during the tensioning operation of the rope. This is important insofar as a rotation of the rope unnecessarily burden the same unnecessarily and would make the tensioning process more difficult. In order to reinforce the anti-rotation even further, the wedge expediently has at least one groove which is aligned parallel to the longitudinal axis. However, for the pure clamping function of the first clamping part, the at least one flattening and the groove are not required.

To build a clamping force on the rope and to ensure the above-described anti-rotation, a through hole is provided on the support expediently, which has a negative mold of the wedge, so that the wedge is forcibly guided in the through hole and with a relative displacement of the wedge in the passage opening along the longitudinal axis of the two clamping members are pressed together along their cutting surface. The deeper the first clamping part is pulled into the through hole, the greater the clamping force generated. The passage opening is designed so that the wedge is not fully retractable in selbige. This design feature further increases the clamping force.

The fact that the passage opening on the side facing away from the wedge advantageously has the shape of a circle through which the first clamping part is performed with its external thread, it is possible to receive the second clamping part rotatably on the support at this point.

In a particularly preferred embodiment, the rotation of the second clamping member relative to the support is manually carried out. Of the Clamping is therefore possible without the aid of additional tools.

Conveniently, the second clamping part has the shape of a circular cylinder whose axis of rotation is the common longitudinal axis of the first and second clamping part. The shape of the rotary cylinder allows easy rotation of the second clamping member to perform the clamping operation.

In a particularly preferred embodiment, the second clamping part has at its end faces circular paragraphs, through the centers of which the longitudinal axis extends and which serve for the rotatable mounting of the second clamping part on the support. The circular paragraphs allow the second clamping member is rotatably supported on the support in a simple manner. The circular paragraphs are added to the support in the passage opening and a further circular opening. The inner diameter of these openings is dimensioned such that the circular paragraphs are rotatable therein and stored without play.

Zeckmäßigerweise recessed grips are provided on the lateral surface of the second clamping part. As a result, the manual rotation of the second clamping part is particularly simple.

Another aspect of the invention relates to a fastening device, in particular for fastening a clamping device to a window frame according to the preamble of claim 8. The fastening device according to the invention has the advantage that the holding part has an L-shape with a first and a second leg and the support along the first leg in stages with the holding part is latched. The determination of the tensioning device on a frame is extremely flexible and comfortable, since the fastening device can be adapted to different frame thicknesses by the stepwise locking. Further, the attachment to the frame without damaging it, since the attachment is based solely on clamping forces between the holding part and the support.

In order to have an even greater flexibility in the adaptation of the fastening device to the frame thickness, the first and the second leg are advantageously two individual parts, which can be latched to each other to the holding part. This two-part construction of the holding part has the advantage that the extension of the second clamping part, which locks with the first clamping part, can have different lengths. The holding part can be easily and inexpensively adapted to different frame thicknesses by second legs are used with different lengths extensions.

In a preferred embodiment, the support has on one end face two elongated guide extensions, which can be delivered in two U-shaped receptacles on the first leg. This constraining allows the support and L-shaped retaining member to be automatically aligned with each other during attachment to a frame.

In order to be able to build up the clamping effect between the support and the L-shaped holding part, a sawtooth-like surface is advantageously formed on the end face of the support between the elongated guide extensions.

Advantageously, the sawtooth-like surface cooperates with a tab on the first leg of the holding part by the tab also has a sawtooth-like surface on its side facing the support, wherein the surfaces are operatively connected in such a way that the support relative to the holding part in a direction parallel to the elongated guide extensions is displaceable and can be fixed in the opposite direction by the sawtooth-like surfaces on the holding part. By this design feature, a clamping action can be realized, which holds the support together with the holding part securely on the frame.

In order to ensure a secure operative connection of the two sawtooth-like surfaces, the tab expediently has a bias which presses the sawtooth-like surface of the tab against the sawtooth-like surface of the support.

To increase the clamping force between the support and the holding part, the angle of the L-shaped holding member is advantageously slightly smaller than 90 degrees. When fixing the fastening device to a frame, the second leg of the holding part is pressed against the frame by the interaction of the sawtooth-like surfaces. Since the angle between the two legs can be extended by the contact pressure to 90 degrees, the contact pressure can be increased by the restoring force of the L-shaped holding part.

In order to generate the greatest possible restoring force described above, the second leg of the holding part is made of metal.

Yet another aspect of the invention relates to a fastening device, in particular for fastening a tensioning device on a flat surface according to the preamble of claim 13. The fastening device according to the invention has the advantage that the support can be locked with a holding part, which on the flat surface, for example by a screw, is determinable. This fastening device ensures a stable and at the same time attachable very fast attachment to a flat surface. For connection to the substrate, in addition to screws, adhesives, double-sided adhesive tape, etc. are also used. conceivable.

In order to create a stable, yet rapidly producible connection between the support and the holding part, the holding part expediently has at least two opposing hooks, which can be delivered to the support in at least two openings and latched to the support.

Characterized in that the clamping device described above is provided to be advantageous latched with two holding parts, it is possible to set the clamping device on almost any surface. The rope can be stretched vertically, horizontally but also in any other position between two rope tensioning devices. If it is fixed to a window frame with one of the holding parts described above, this has the advantage that the window is open even when the curtain is closed. The user is given the opportunity with the rope tensioning set according to the invention to adapt it to his needs. The adjustment possibilities consist of the position of the rope, the length of the rope by simply cutting the same and the manner of fixing the rope tensioning devices by selecting a pair of one of the two holding parts.

In a particularly preferred embodiment, the second clamping part is rotatably held about the longitudinal axis on the support. The clamping device according to the invention is thereby operated with one hand and tool-free.

In the following, the invention will be described in more detail in a schematic representation with reference to the figures. It shows:

1 a perspective view of the cable tensioning device according to the invention;

2 a support in a first perspective view;

3 the support 2 in a second, perspective view;

4 a first clamping part in a perspective view;

5 perspective view of a clamping part;

6 perspective view of a second clamping part;

7 a holding part in a first perspective view;

8th the holding part off 7 in a second perspective view;

9 an L-shaped holding part before the assembled state;

10 the L-shaped holding part in the assembled state;

11 the rope tensioning device according to the invention arranged on a window frame in a horizontal position;

12 the rope tensioning device arranged on a window frame in an oblique position;

13 the rope tensioning device arranged on a window frame in a vertical position and

14 the rope tensioning device arranged in front of a window in a vertical position, wherein the rope tensioning device is fixed to the window base.

In 1 a rope tensioning device according to the invention is shown, which overall with the reference numeral 11 is designated. The rope tensioning device 11 consists of a support 13 , a first clamping part 15 and a second clamping part 17 , The first and the second clamping part have a common longitudinal axis 19 , which also the axis of rotation of the second clamping part 17 represents.

In the 4 and 5 is the first clamping part 15 shown in detail. The first clamping part 15 consists of two symmetrical clamping parts 21 . 23 which have a common cut surface 24 have. The first clamping part 15 has an external thread 25 , which occupies about 2/3 of the length. The one end of the clamping part 15 is as a wedge 27 educated. The wedge 27 has on opposite sides parallel to the longitudinal axis 19 two flat surfaces 29 , Additionally are on the wedge 27 two grooves 31 intended.

At each of the two clamping parts 27 . 29 is along the longitudinal axis 19 a depression 33 intended. In the assembled state form the wells 33 a passage opening 34 , which is the inclusion of a rope 37 serves ( 5 ). In the wells 33 are a plurality of punctiform and spaced elevations 35 arranged, which the clamping action of the first clamping part 15 on the rope 37 increase. In addition, in the depressions 33 in the area of the wedge 27 hook-shaped clamping reinforcements 39 arranged, showing the jamming of the rope 37 in the first clamping part 15 even better. in the assembled state of the first clamping part 15 are the clamping parts 21 . 23 through pimples 41 and recesses (not shown in the figures), which at the cutting plane 24 are arranged, aligned relative to each other.

The second clamping part 17 has the shape of a rotary cylinder and has an internal thread 43 whose center axis is the longitudinal axis 19 is and with the external thread 25 cooperates ( 6 ). At its front ends 45 . 47 are circular paragraphs 49 formed, which allow the second clamping part 17 rotatable on the support 13 is held. On the lateral surface of the second clamping part 17 are recessed grips 51 provided, which is the manual rotation of the second clamping part 17 relative to the support 13 facilitate.

The wedge 27 is in a through hole 53 of support 13 recorded ( 1 ). The passage opening 53 owns the negative form of the wedge 27 , This design feature makes it possible for the clamping parts 21 . 25 more and more strongly pressed against each other, the deeper the first clamping part 15 in the passage opening 53 located. How out 1 can be seen, is the passage opening 53 dimensioned so that the first clamping part 15 not completely in selbiger is receivable. This will replace the support 13 on the first clamping part 15 transmitted clamping force maximized. The special shape of the wedge 27 passing through the surfaces 29 and the grooves 31 comes about, makes it impossible to twist the first clamping part 15 in the passage opening 53 ,

The 2 and 3 show that the support 13 a recess, which is the receptacle of the second clamping part 17 serves, owns. So that the second clamping part 17 is rotatably supported on the support, has the through hole 53 on the side facing away from the wedge the shape of a circle 55 , The passage opening 53 Opposite, is at the support 13 another circular opening 57 intended. The openings 55 . 57 are dimensioned in their inner diameters so that in selbigen the circular paragraphs 49 of the second clamping part 17 are received rotatably. The length of the recess on the support 13 is dimensioned such that the second clamping part 17 by means of circular heels 49 in the openings 55 . 57 locks. The determination of the support 13 on a substrate can be done in two ways. For attachment of the support to a frame construction, for example on a window frame 59 , is an L-shaped holding part 61 with two thighs 63 . 65 usable. In 9 and 10 is shown that the thighs 63 . 65 are formed as two items. The connection to the L-shaped holding part 61 arises from the fact that the thigh 65 an extension 68 possesses, at the a barb 66 is provided. By means of the barb 66 is the second leg 65 with the first leg 63 latched. This two-piece construction of the holding part 61 has the advantage that the extension 68 can have different lengths. The holding part 63 can be easily and inexpensively adapted to different frame thicknesses by thighs 65 with different length extensions 68 be used. At the passage opening 53 opposite end face 67 of support 13 are two elongated guide extensions 69 arranged ( 3 ). The guide processes 69 work with two U-shaped shots 71 together, which is the thigh 63 flank. For locking the holding part 61 with the support 13 are at the front 67 and on the side of the thigh 63 , which the front side 67 facing (not visible in the figures), sawtooth surfaces 73 . 75 intended. The surfaces lock into each other steplessly until the distance between the support 13 and the thigh 65 the strength of the frame. This creates a clamping effect between support 13 , Thighs 65 and frame, which the rope tensioning device 11 holding to the frame. For this connection is detachable, the surface is 75 on a tab 77 arranged, which of the surface 73 is manually bendable. The thigh 65 is preferably made of metal and the angle between the two legs is preferably slightly less than 90 degrees. This has the consequence that the clamping force, which between the leg 65 and the support 13 works, is improved.

For fastening the rope tensioning device 11 by means of screws or gluing on a level surface is a holding part 81 intended ( 7 and 8th ). At the holding part 81 are openings 83 . 85 provided, which serve to receive screws. For locking the holding part 81 with the support 13 are on the holding part 81 hook 87 . 89 . 91 intended. To pick up the hook 87 . 89 . 91 are rectangular openings 93 . 95 . 97 at the support 13 intended.

The installation of the rope tensioning device 11 works like this: First is the support 13 on a substrate by means of the holding part 61 or 81 set. If the determination by means of screws or gluing done, so is the holding part 81 to choose. Once this is set on the ground, the support becomes 13 on the holding part 81 plugged and locked with selbigem by the hooks 87 . 89 . 91 with the support 13 in operative connection.

Should the support be on a frame 59 are set, so is the L-shaped holding part 61 to choose. The holding part 61 can by means of double-sided tape or manually provisionally attached to the frame 59 be held. The double-sided adhesive tape is preferably on the side of the leg 63 arranged, which to the frame 59 oriented. The elongated guide extensions 69 be up to the stop in the U-shaped shots 71 pushed. This is the frame 59 between the thigh 65 and the support 13 trapped and the support 13 held on the frame. A release of this clamping connection is through the sawtooth-like surfaces 73 . 75 prevented, since these act as barbs to each other. The tab 77 has a bias, which is the surface 75 to the surface 73 suppressed. Only when the tab 77 lifted against the bias, the clamp connection is released.

Is the support 13 together with the second clamping part 17 fixed to the ground, the rope can 37 by means of the rope tensioning device 11 be tense. For this it is necessary the rope 37 into the wells 33 the clamping parts 21 . 23 insert and the clamping parts 21 . 23 by means of the pimples 41 and align recesses to each other. The internal thread 25 is through the passage opening 53 guided until it with the external thread 43 comes into contact. The second clamping part 17 is rotated until the maximum clamping action and the desired tension on the rope 37 acts. The second end of the rope 37 is also from a rope tensioning device 11 held. It would also be conceivable, however, that the second end is held only by an angle. To additionally avoid pulling out the rope 37 from the first clamping part 15 it is conceivable that at the end of the rope a button, a clamping screw o.ä. is provided.

In the 11 to 14 are the rope tensioning devices 11 each shown in front of a window. Out 12 it can be seen that the rope 37 also diagonally between two rope tensioning devices 11 can be aligned. 13 and 14 show the possibility of a vertical arrangement of two ropes 37 in front of a window using four rope tensioning devices 11 for holding a plisse 93 , The rope tensioning devices 11 are in the 13 by means of holding parts 61 and in 14 by means of holding parts 81 established. The pleated is on the ropes 37 lengthwise clamped or held for example by magnetic forces.

LIST OF REFERENCE NUMBERS

11

 Rope tensioner

13

 Support

15

 First clamping part

17

 Second clamping part

19

 longitudinal axis

21, 23

 clamping parts

24

 section

25

 external thread

27

 wedge

29

 Plane surfaces

31

 groove

33

 wells

34

 Through opening on the first clamping part

35

 Point-shaped elevations

37

 rope

39

 clamping gain

41

 burl

43

 inner thread

45, 47

 front sides

49

 Circular paragraphs

51

 handholds

53

 Through opening on the support

55, 57

 Circular openings

59

 window frame

61

 L-shaped holding part

63, 65

 leg

66

 barb

67

 front

68

 renewal

69

 Elongated guide extensions

71

 U-shaped shots

73, 75

 Sawtooth surfaces

77

 flap

81

 holding part

83, 85

 openings

87, 89, 91

 hook

93, 95, 97

 Rectangular openings

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20107752 U1 [0006]
• DE 29722144 U1 [0007]

Claims (15)

Clamping device ( 11 ) for tensioning a rope ( 37 ), which serves in particular the mounting of a curtain, with - a first clamping part ( 15 ), - a second clamping part ( 17 ), which clamping parts ( 15 . 17 ) cooperate by means of a threaded connection to the distance of the clamping parts ( 15 . 17 ) along its common longitudinal axis ( 19 ) to increase or decrease, and - support ( 13 ), which the first or the second clamping part ( 15 . 17 ) serves as an abutment and with which the tensioning device ( 11 ) is fixable on a substrate, characterized in that the first clamping part ( 15 ) consists of two symmetrical clamping parts ( 21 . 23 ), which has a common cut surface ( 24 ) and that on the first clamping part ( 15 ) along the longitudinal axis ( 19 ) a passage opening ( 34 ), which is the inclusion of the rope ( 37 ) and which is formed by the fact that at the two clamping parts ( 21 . 23 ) each along the longitudinal axis ( 19 ) a recess ( 33 ) is provided. Clamping device ( 11 ) according to claim 1, characterized in that the second clamping part ( 17 ) rotatable about the longitudinal axis ( 19 ) on the support ( 13 ) and that the first clamping part ( 15 ) an external thread ( 25 ), which with an internal thread ( 43 ) of the second clamping part ( 17 ) cooperates, wherein the second clamping part ( 17 ) on the support ( 13 ) is held. Clamping device ( 1 ) according to one of claims 1 or 2, characterized in that on the clamping parts ( 21 . 23 ) along their common cut surface ( 24 ) Pimples ( 41 ) or recesses are provided, which the clamping parts ( 21 . 23 ) align positively to each other. Clamping device ( 11 ) according to one of claims 1 to 3, characterized in that the one end of the first clamping part ( 15 ) the shape of a wedge ( 27 ) and the wedge ( 27 ) is flattened on at least one side parallel to the longitudinal axis. Clamping device ( 11 ) according to claim 4, characterized in that on the support ( 13 ) a passage opening ( 53 ) is provided, which is a negative form of the wedge ( 27 ), so that the wedge ( 27 ) in the passage opening ( 53 ) is constrained and upon relative displacement of the wedge ( 27 ) in the passage opening ( 53 ) along the longitudinal axis ( 19 ) the two clamping parts ( 21 . 23 ) along its cutting surface ( 24 ) are pressed together. Clamping device ( 11 ) according to claim 5, characterized in that the passage opening ( 53 ) on the wedge ( 27 ) facing away from the shape of a circle ( 55 ), through which the first clamping part ( 13 ) with its external thread ( 25 ) is performed. Clamping device ( 11 ) according to one of claims 1 to 6, characterized in that the second clamping part ( 17 ) has the shape of a circular cylinder whose axis of rotation is the longitudinal axis ( 19 ) and at its ends ( 45 . 47 ) circular paragraphs ( 49 ), through whose centers the longitudinal axis ( 19 ) and the rotatable support of the second clamping part ( 17 ) on the support ( 13 ) serve. Fastening device, in particular for fastening a tensioning device ( 11 ), in particular a cable tensioning device for curtains, on a window frame ( 59 ) with - a support ( 13 ) and - a holding part ( 61 ), characterized in that the holding part ( 61 ) an L-shape having a first and a second leg ( 63 . 65 ) and the support ( 13 ) along the first leg ( 63 ) in steps with the holding part ( 61 ) is latched. Fastening device according to claim 8, characterized in that the support ( 13 ) on a front side ( 67 ) two elongated guide extensions ( 69 ), which in two U-shaped receptacles ( 71 ) on the first leg ( 63 ) are deliverable. Fastening device according to one of claims 8 or 9, characterized in that on the front side ( 67 ) of support ( 13 ) between the elongated guide extensions ( 69 ) a sawtooth surface ( 73 ) and the sawtooth-like surface ( 73 ) with a tab ( 77 ) on the first leg ( 63 ) of the holding part ( 61 ) cooperates by the tab ( 77 ) at her the support ( 13 ) side also a sawtooth-like surface ( 75 ), the surfaces ( 73 . 75 ) in such a way that the support ( 13 ) relative to the holding part ( 61 ) in a direction parallel to the elongated guide extensions ( 69 ) is displaceable and in the opposite direction by the sawtooth-like surfaces ( 73 . 75 ) on the holding part ( 61 ) is determinable. Fastening device according to claim 10, characterized in that the tab ( 77 ) has a bias voltage which is the sawtooth surface ( 75 ) the tab ( 77 ) to the sawtooth surface ( 73 ) of support ( 13 ) presses. Fastening device according to one of claims 8 to 11, characterized in that the Angle of the L-shaped holding part ( 61 ) is slightly less than 90 degrees. Fastening device, in particular for fastening a tensioning device ( 11 ), in particular a cable tensioning device for curtains, on a level surface with - a support ( 13 ) and - a holding part ( 81 ), characterized in that the support ( 13 ) with the holding part ( 81 ) can be latched, which on the flat surface, for example by a screw, can be fixed. Fastening device according to claim 13, characterized in that the holding part ( 81 ) at least two opposing hooks ( 87 . 89 ), which in at least two openings ( 93 . 95 ) on the support ( 13 ) and with the support ( 13 ) lock. Cable tensioning set consisting of at least one tensioning device ( 11 ) according to one of claims 1 to 7, at least one holding part ( 61 ) according to claim 8 to 12, at least one holding part ( 81 ) according to claim 13 to 14 and a rope ( 37 ).

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