EP2594165B1 - Clamp holder for fixing an object, in particular a cable tensioning device for a sun screen or blind, to a window or door frame - Google Patents

Description

The invention relates to a clamp for fixing an object, in particular a cable tensioning device for a sun and / or privacy device, such as a pleated blind, a blind or a curtain, on a window or door frame.

Out EP 0 730 081 A1 is a clamp for mounting a sun or privacy device on a window or door frame known comprising an elbow and a clamping piece. The elbow engages behind the frame with a first leg and protrudes with a second leg forward over the frame. The clamping piece is slidably mounted on the second leg of the elbow and pressed against the frame for clamping the frame between the first leg of the elbow and the clamping piece. The clamping piece has an opening through which the second leg of the elbow passes. In the region of the opening, a spring tongue is provided, which engages in a toothing provided on the second leg.

Out EP 2 329 747 A2 a fastening device for fastening a cable tensioning device for curtains on a window frame is known, comprising a holding piece and a clamping piece. The holding piece has a first and a second leg. The clamping piece can be latched along the first leg in steps with the holding piece.

Out DE 196 36 921 C1 is a clamp for the support member of a sun or protection device on the frame of a window or a door known comprising an angular holding piece whose first leg engages behind the frame and the second leg, the support member via a thread and allows the setting of the clamp to different frame thicknesses wherein the frame is clamped between the first arm and the support arm.

Out GB 2 104 586 A There is known a connector having a receiving part in which a slit is provided, a rod which can be engaged with the slit, and a holding pin which is mounted in an opening of the receiving part to be in a holding position on the main surface of the staff. Slot and rod of the connector have a similar transverse deformation.

Out US 1 772 621 A For example, a bracket for blinds is known, comprising a pair of complementary sections, each of which is formed at its outer end for connection to a window frame, and inner end portions of the sections which are overlapping and slidable relative to each other, wherein the two sections with a hook are coupled.

GB 2 104 586A and US 1 772 621A both disclose a clamp with the features of the preamble of claim 1.

The present invention has for its object to provide a new, easy-to-use clamping bracket for attaching an object, in particular a cable tensioning device for a sun and / or privacy protection device to a window or door frame.

This object is solved by the features of claim 1. Advantageous embodiments and further developments are specified in the respective dependent claims.

The clamp holder according to the invention comprises a clamping piece and an angle piece. The clamping piece is connected to the object to be fastened, for example a cable tensioning device, or can be connected, or the clamping piece comprises the object to be fastened, for example the cable tensioning device. The elbow comprises a first leg and a second leg which enclose an angle therebetween. The first leg engages behind the window or door frame and the second leg projects forward over the frame. The clamping piece is slidably mounted on the second leg of the elbow and pressed against the frame for clamping the frame between the second leg of the elbow and the clamping piece.

The invention provides that in and / or on the second leg of the angle piece, a rotary member is rotatably mounted with an eccentric extension. The eccentric extension of the rotary element engages in a corresponding eccentric recess in the clamping piece. Upon rotation of the rotary member in a predetermined clamping direction of rotation of the eccentric extension will press the clamping piece to the frame. As a result, the clamping piece and thus the object to be fastened is clamped to the frame.

Under Exzenterfortsatz this is understood in relation to a rotational axis of the rotary member eccentrically arranged extension or approach to the rotary member, that is, its center is outside the axis of rotation. An eccentric is due to its arrangement to the rotation axis and its circumferential shape in a position to convert a rotational movement about the axis of rotation in a linear movement, in particular in a plane perpendicular to the axis of rotation. By way of example, an at least partially spiral-shaped circumferential shape of the eccentric extension may be mentioned, but other shapes are also possible. It is essential in the selection of a suitable shape, however, that the eccentric extension is suitable due to its arrangement to the axis of rotation and its peripheral shape, upon rotation of the rotary member in the clamping direction, the clamping piece of Clamp the clamp to the frame.

Furthermore, the invention provides that upon rotation of the rotary member in the intended direction of clamping areas of a lateral, in the clamping direction of rotation pressing surface of the Exzenterfortsatzes press against a first leg of the elbow facing away Andrückwand of the clamping piece, whereby the clamping piece is pressed against the frame. In this case, the region of the pressing surface which presses against the pressing wall can move radially outwards on rotation of the rotary element in the clamping direction of rotation on the rotating element.

The invention further contemplates that the clamping piece is displaceable along a longitudinal axis of the second leg, wherein the clamping piece has parallel to the longitudinal axis extending lateral projections which are guided in likewise extending parallel to the longitudinal axis undercut guide rails on the second leg.

The advantages of the invention are in particular the simple handling of the clamp. By a simple rotation, the clamp can be attached to window or door frames of different thickness and removed again, without leaving any damage to the frame. Furthermore, the clamp is simple in construction and inexpensive to manufacture.

Conveniently, it can be provided that upon rotation of the rotary member against the intended clamping direction of rotation, the clamping of the clamping element is released on the frame again, so that the clamping element and thus the object to be fastened can be removed from the frame.

A variant of the invention provides that the pressure wall is substantially planar. Alternatively or additionally, the pressing surface of the eccentric extension of the rotary element can be curved substantially convexly be, in particular with a curvature, which decreases with increasing radial distance from the axis of rotation of the rotary member, preferably decreases steadily. Preferably, the pressing surface of the Exzenterfortsatzes is spirally curved.

According to a development, the eccentric recess of the clamping piece has an opening on its side facing the first leg of the angle piece. This opening serves to insert the Exzenterfortsatzes in the Exzenterausnehmung during assembly of the clamp by pushing together clamping piece and elbow. In this case, the pressure wall is formed on a arranged in the Exzenterausnehmung and elastically depressible nose of a latching hook. This in turn is arranged and designed so that it is pushed deeper into the Exzenterausnehmung during insertion of the Exzenterfortsatz due to their wedge shape of the eccentric extension and thereby allows the insertion of the Exzenterfortsatzes in the Exzenterausnehmung, but moved back to its original position after insertion of the Exzenterfortsatzes and prevents this position due to the Andrückwand a new pushing out of the Exzenterfortsatzes from the Exzenterausnehmung.

The rotary element can be rotatably mounted in a corresponding recess in the second leg of the angle piece, in particular in a recess which has a screening which corresponds to one or more latching lugs of the rotary element.

Conveniently, it may further be provided that the rotary member between a clamping position and a release position is rotatable, wherein the clamping bracket is clamped in the clamping position of the rotary member on the window or door frame and is removable in a release position of the window or door frame.

The rotating element may be opposite to the eccentric extension Side have a handle for manually carrying out a rotary movement of the rotary member, the position of which indicates to an operator the assumed position of the rotary member.

The first leg of the elbow may essentially consist of metal and be latched by means of latching with the second leg, which preferably consists essentially of plastic.

The angle between the first and second legs of the elbow can be 90 °. In order to strengthen the clamping forces, but can also be provided that the angle between the first and second leg between 70 ° and 90 °, preferably between 80 ° and 90 °.

FIG 1

ein Ausführungsbeispiel einer erfindungsgemäßen Klemmhalterung, angeordnet an einem Fenster- oder Türrahmen,

FIG 2

das Ausführungsbeispiel nach FIG 1 aus einer anderen Blickrichtung,

FIG 3

das Ausführungsbeispiel nach FIG 1 in einer teilweisen Schnittdarstellung, wobei das Drehelement eine Freigabeposition einnimmt,

FIG 4

eine FIG 3 entsprechende Darstellung des Ausführungsbeispiels nach FIG 1, wobei das Drehelement eine Klemmposition einnimmt,

FIG 5

das Ausführungsbeispiel nach FIG 1 in einer Frontalansicht,

FIG 6

das Ausführungsbeispiel nach FIG 1 in einer Schnittdarstellung entlang der Linie VI-VI in FIG 5, Blickrichtung von links,

FIG 7

das Ausführungsbeispiel nach FIG 1 in einer Schnittdarstellung entlang der Linie VII-VII in FIG 5, Blickrichtung von oben,

FIG 8

das Ausführungsbeispiel nach FIG 1 in einer Frontalansicht, entsprechend FIG 5,

FIG 9

das Ausführungsbeispiel nach FIG 1 in einer Schnittdarstellung entlang der Linie IX-IX in FIG 8, Blickrichtung von unten,

FIG 10

das entsprechend FIG 9 geschnittene Ausführungsbeispiel in einer perspektivischen Darstellung,

FIG 11 bis 15

das Drehelement des Ausführungsbeispiels nach FIG 1 in verschiedenen Ansichten,

FIG 16

das Klemmstück des Ausführungsbeispiels nach FIG 1 in einer perspektivischen Darstellung, ohne Seilspannvorrichtung, und

FIG 17

das Winkelstück des Ausführungsbeispiels nach FIG 1 in einer perspektivischen Darstellung, ohne Drehelement.

The invention will be explained below with regard to further features and advantages with reference to the description of an embodiment and with reference to the accompanying drawings. Show

FIG. 1

An embodiment of a clamping holder according to the invention, arranged on a window or door frame,

FIG. 2

the embodiment according to FIG. 1 from a different perspective,

FIG. 3

the embodiment according to FIG. 1 in a partial sectional view, wherein the rotary element occupies a release position,

FIG. 4

a FIG. 3 corresponding representation of the embodiment according to FIG. 1 wherein the rotary element assumes a clamping position,

FIG. 5

the embodiment according to FIG. 1 in a frontal view,

FIG. 6

the embodiment according to FIG. 1 in a sectional view along the line VI-VI in FIG. 5 , View from left,

FIG. 7

the embodiment according to FIG. 1 in a sectional view taken along the line VII-VII in FIG. 5 , View from above,

FIG. 8

the embodiment according to FIG. 1 in a frontal view, accordingly FIG. 5 .

FIG. 9

the embodiment according to FIG. 1 in a sectional view taken along the line IX-IX in FIG. 8 , View from below,

FIG. 10

that accordingly FIG. 9 sectional embodiment in a perspective view,

FIGS. 11 to 15

the rotary element of the embodiment according to FIG. 1 in different views,

FIG. 16

the clamping piece of the embodiment according to FIG. 1 in a perspective view, without rope tensioning device, and

FIG. 17

the elbow of the embodiment according to FIG. 1 in a perspective view, without rotary element.

FIG. 1 to FIG. 17 relate to the same embodiment of a clamp holder 1 according to the invention.

Out FIG. 1 and FIG. 2 It is clear that the clamping bracket 1 for attachment of an object, here a cable tensioning device 2 for a sun and / or privacy protection, on a window or door frame 3 is used. A stretched with the rope tensioning device 2 rope 26 may, for example intended to guide a pleated blind, a blind or a curtain.

The clamp holder comprising a clamping piece 4 and an elbow 5, wherein the clamping piece 4 comprises the cable tensioning device 2, that is, the rope tensioning device 2 is part of the clamping piece 4. The rope tensioning device 2 corresponds to the EP 2 329 747 A2 known rope tensioning device. For more information on their characteristics, please refer to this document.

The angle piece 5 comprises a first leg 6 and a second leg 7, which enclose an angle 8. This angle 8 is not at 90 °, but at about 83 ° to enhance the clamping action. In the illustrated embodiment, the first leg 6 of the elbow 5 made of metal, it is bent at the transition to the second leg 7 and locked by a metal nose 34 with the second leg 7. By this bend and the metal used results in an elasticity between the first leg 6 and second leg 7, through which the clamping of the clamp 1 on the frame 3 is supported The second leg 7 and at least substantially the clamping part 2 may for example consist of plastic. Of course, it is also possible to form the first leg entirely or partially made of plastic.

The first leg 6 of the elbow 5 engages behind the window or door frame 3, the second leg 7 projects forward over the frame 3.

The clamping piece 4 is slidably mounted on the second leg 7 of the elbow 5 along a longitudinal axis of the second leg 7 and for clamping the frame 3 between the second leg 7 of the elbow 5 and the clamping piece 4 to the frame 3 pressed. For this purpose, the clamping piece 4 parallel to the longitudinal axis of the second leg 7 of the elbow 5 extending lateral projections 17 on its second leg 7 facing upper side 28, which pass over a curved projection 30 on a side facing away from the first leg 6 end face 29 of the clamping piece 4 into each other , The lateral projections 17 are guided by two guide rails 18, which are formed as undercut guide rails 18 on a clamping element 4 facing bottom 31 of the second leg 7 of the elbow 5 and with the lateral projections 17 correspond to such that they a guided linear displacement of the clamping piece 4 along the longitudinal axis of the second leg 7 of the elbow 5 allow.

On or in the second leg 7 of the angle piece 5, a rotary member 9 is rotatably mounted. For this purpose, a recess 19 corresponding to the rotary element 9 is provided in the second leg 7. This recess 19 has on its side wall a screening 20 which cooperates with a detent 21 on the rotary member 9.

The rotary element 9 has an eccentric extension 10 on its underside 32 facing the clamping element 4. This eccentric extension 10 engages in a corresponding Exzenterausnehmung 11 in the clamping piece 4 a. Upon rotation of the rotary member 9 in a predetermined clamping direction of rotation 12 of the eccentric extension 10 presses the clamping piece 4 to the frame 3. For this purpose, the clamping piece 4 a Andrückwand 14, which is oriented such that it faces away from the first leg 6 of the elbow 5, ie, when pressed against the Andrückwand 14 of the clamping piece 4, the clamping piece 4 in the direction of the first leg 6 of the elbow 5 pressed. Areas of this pressing surface 13 press upon rotation of the rotary member 9 in clamping direction 12 against the Andrückwand 14 of the clamping piece 4. As a result, the clamping piece 4 is pressed against the frame 3. The Andrückwand 14 of the clamping piece 4 is a flat surface, the pressing surface 13 of the Exzenterfortsatzes 10 of the rotary member 9, however, is curved convexly, with a curvature which steadily, namely spirally decreases with increasing radial distance from the rotational axis D of the rotary member 9 , The oppressive wall 14 pressing portion of the pressing surface 13 of the Exzenterfortsatzes 10 thereby migrates upon rotation of the rotary member 9 in the clamping direction 12 on the rotary member 9 radially outward.

The rotary member 9 is rotatable between a clamping position 22 and a release position 23, wherein the clamping bracket 1 is clamped in the clamping position 22 of the rotary member 9 on the window or door frame 3 and in the release position 23 from the window or door frame 3 is removable. Decisive for the adoption of the clamping position 22 and the release position 23 is the position of the Exzenterfortsatzes 10 and thus the force exerted by him on the Andrückwand 14 force. FIG. 3 and FIG. 4 Therefore, in each case by omitting a view obstructing part of the second leg 6 and the rotary member 9, the position of the Exzenterfortsatzes 10th FIG. 3 shows the position of the Exzenterfortsatzes 10 in the release position 23 of the clamp 1, FIG. 4 shows the position of the Exzenterfortsatzes 10 in the clamping position 22 of the clamping bracket. 1

Out FIG. 3 It can be seen that the clamping piece 4 in the release position 23 from the first leg 6 of the elbow 5 is moved away until the Andrückwand 14 abuts one of the pressing surface 13 opposite back 33 of the Exzenterfortsatzes 10, which is in the clamping direction 12 of the rotary member 11 behind. This back 33 of the Exzenterfortsatzes 10 is formed as a flat surface.

Out FIG. 4 It can be seen that the clamping piece 4 is pressed in the clamping position 22 to the first leg 6 of the elbow 5, a portion of the pressing surface 13 of the Exzenterfortsatzes 10 presses against the Andrückwand 14th

The sectional views FIG. 7 and FIG. 9 / FIG. 10 and so too 5 and FIG. 6 such as FIG. 8 show a position of the Exzenterfortsatzes 10 between the in FIG. 3 and FIG. 4 shown positions.

The rotary member 9 has on its side opposite the Exzenterfortsatz 10 a handle 24 for manually carrying out a rotary movement of the rotary member 9, for example in Klemmdrehrichtung 12 for clamping the clamp bracket 1 on the frame 3 or in the opposite direction to release the clamp bracket 1 from the frame 3 on , The position of the handle 24 indicates to an operator the assumed position of the rotary member 9, in particular, the operator can thereby recognize whether the clamping bracket 1 is in the release position 23 or in the clamping position 22.

The rotational movement of the rotary member 9 is limited by a stop 27 for the handle 24. In the illustrated embodiment, the clamping direction of rotation 12 in plan view of the handle 24 is a rotary movement in the clockwise direction. In the FIG. 3 shown stop position of the handle 24 on the stop 27 corresponds to the release position 23 of the clamping piece 4, it is indicated to the operator by a suitable symbol (open lock). Starting from this stop position, the rotary member 9 is rotated to clamp the clamp bracket 1 on the frame 3 in the clamping direction 12 until the respective frame thickness corresponding clamping position 22 is reached. A maximum rotational movement is possible up to the position in which the handle 24 abuts against the opposite side of the stop 27. This position is indicated by a suitable symbol (closed lock). From the two symbols, the operator thus easily recognizes the direction of rotation of the rotary element 9 required for clamping or releasing the clamping holder 1.

To a simple assembly of the clamping bracket 1 of clamping piece 4 and 5 elbow by pushing together these components to allow the eccentric recess 11 of the clamping piece 4 on its side facing the first leg 6 of the elbow 5 an opening 15 for insertion of the Exzenterfortsatzes 10 in the Exzenterausnehmung 11. Further, the pressure wall 14 is arranged on a arranged in the Exzenterausnehmung 11 and elastically depressible nose 25 of a resiliently arranged on the remaining clamping piece 4 latching hook 16. This nose 25 has a wedge shape and is therefore pushed deeper into the eccentric 11 during insertion of the Exzenterfortsatzes 10 in the Exzenterausnehmung 11 from the Exzenterfortsatz 10. As a result, the eccentric extension can be pushed over the nose 25 with the pressure wall 14 away into the eccentric recess 11. The latching hook 16 allows this movement. After insertion of the Exzenterfortsatzes 10 in the Exzenterausnehmung 11 moves the elastic latching hook 16, the nose 25 back to its original position, so that the Andrückwand 14 at the nose 25 now prevents a new pushing out of the Exzenterfortsatzes 10 from the Exzenterausnehmung 11.

LIST OF REFERENCE NUMBERS

1

clamp

2

Rope tensioner

3

Window or door frame

4

clamp

5

elbow

6

First leg of the elbow 5

7

Second leg of the elbow 5

8th

Angle between first leg 6 and second leg 7

9

rotating member

10

Exzenterfortsatz

11

eccentric recess

12

Clamping direction of rotation

13

Pressure surface of the eccentric process 10

14

Andrückwand of the clamping piece. 4

15

Opening of the eccentric 11

16

latch hook

17

Lateral projection of the clamping piece 4

18

Undercut guide rail on the second leg. 7

19

Recess in the second leg 7

20

Screening of the recess 19

21

Latch on the rotary element 9

22

Clamping position of the rotary element 9

23

Release position of the rotary element 9

24

Handle of the rotary element 9

25

Nose of the latch hook 16

26

rope

27

Stop for handle 24

28

Top of the clamping piece 4

29

Front side of the clamping piece 4

30

Curved projection on the front side 29 of the clamping piece. 4

31

Bottom of the second leg 7

32

Bottom of the rotary member 9

33

Back of the eccentric process 10

34

metal nose

D

Rotary axis of the rotary element 9

Claims (7)

1. Clamp holder (1) for fixing an object, in particular a cable tensioning device (2) for a sun screen and/or blind, to a window or door frame (3), comprising a clamping piece (4) and an angle piece (5),
   wherein the clamping piece (4) is connected or can be connected to the object, in particular the cable tensioning device (2), or comprises the object, in particular the cable tensioning device (2), wherein the angle piece (5) comprises a first arm (6) and a second arm (7), which enclose an angle (8), wherein the first arm (6) will engage behind the window or door frame (3) and the second arm (7) will project forwards over the frame (3), and
   wherein the clamping piece (4) is displaceably mounted on the second arm (7) of the angle piece (5) and can be pressed against the frame (3) in order to clamp the frame (3) between the second arm (7) of the angle piece (5) and the clamping piece (4), wherein a rotary element (9) having an eccentric prolongation (10) is rotatably mounted in and/or on the second arm (7) of the angle piece (5),
   wherein the eccentric prolongation (10) engages in a corresponding eccentric recess (11) in the clamping piece (4), wherein the eccentric prolongation (10) will press the clamping piece (4) against the frame (3) when the rotary element (9) is rotated in a predefined clamping direction of rotation (12), and wherein, when the rotary element (9) is rotated in the clamping direction of rotation (12), regions of a lateral pressing surface (13), which is located at the front in the direction of rotation, of the eccentric prolongation (10) press against a pressing wall (14) of the clamping piece (4), which pressing wall (14) is remote from the first arm (6) of the angle piece (5), whereby the clamping piece (4) is pressed against the frame (3),
   wherein the clamping piece (4) is displaceable along a longitudinal axis of the second arm,
   characterised in that the clamping piece (4) has lateral projections (17) which run parallel to the longitudinal axis and which are guided in undercut guide rails (18) on the second arm (7), which guide rails (18) likewise run parallel to the longitudinal axis.
2. Clamp holder according to claim 1,
   characterised in that
   the region of the pressing surface (13) that presses against the pressing wall (14) travels radially outwards on the rotary element (9) when the rotary element (9) is rotated in the clamping direction of rotation (12).
3. Clamp holder according to claim 1 or 2,
   characterised in that
   the pressing wall (14) is substantially flat and/or the pressing surface (13) is substantially convex, in particular decreases, preferably constantly and/or spirally, with a curvature that decreases as the radial distance from the axis of rotation (D) of the rotary element (9) increases.
4. Clamp holder according to any one of the preceding claims,
   characterised in that
   the eccentric recess (11) of the clamping piece (3) has on its side facing the first arm (6) of the angle piece (5) an opening (15) through which the eccentric prolongation (10) can be pushed into the eccentric recess (11) when the clamp holder (1) is assembled by pushing the clamping piece (4) and the angle piece (5) together, and
   in that the pressing wall (14) is formed on a nose (25) of a snap-in hook (16), which nose (25) is arranged in the eccentric recess (11) and can be pressed in resiliently and is so arranged and configured that, when the eccentric prolongation (10) is pushed into the eccentric recess (11), the nose (25), owing to its wedge shape, is pressed deeper into the eccentric recess (11) by the eccentric prolongation (10) and thereby allows the eccentric prolongation (10) to be pushed into the eccentric recess (11) but, after the eccentric prolongation (10) has been pushed in, moves back into its starting position again and in that position, owing to the pressing wall (14), prevents the eccentric prolongation (10) from being pushed out of the eccentric recess (11) again.
5. Clamp holder according to any one of the preceding claims,
   characterised in that
   the rotary element (9) is rotatably mounted in a corresponding recess (19) in the second arm (7) of the angle piece (5), in particular in a recess (19) that has a system of teeth (20) corresponding to one or more snap-in noses (21) on the rotary element (9).
6. Clamp holder according to any one of the preceding claims,
   characterised in that
   the rotary element (9) is rotatable between a clamping position (22) and a release position (23), wherein the clamp holder (1) is clamped to the window or door frame (3) when the rotary element (9) is in the clamping position (22) and can be removed from the window or door frame (3) when the rotary element (9) is in a release position (23).
7. Clamp holder according to any one of the preceding claims,
   characterised in that
   the rotary element (9) has on its side opposite the eccentric prolongation (10) a handle (24) for manually executing a rotary movement of the rotary element (9), the position of which handle (24) indicates to the operator the position that has been assumed by the rotary element (9).

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