Clamping mechanism for profile frame system

Abstract

Clamping device (12) for a profile frame system with a clamping element (1), a clamping element (2), which are designed to be fixable and detachable from one another, characterized in that the clamping element (1) can be moved translationally into and out of a clamping position, the clamping element (2) causes the translational movement of the clamping element (1) into the clamping position and enables the translational movement of the clamping element (1) out of the clamping position, the clamping element (2) has a toothing (3) allowing at least two locking steps, which fix the clamping element (1) in the clamping position, the clamping element (1) has a complementary toothing (9), the clamping element (1) has at least one material recess (30) on the side facing the tensioning element (2) running transversely to its translational movement, the clamping element (1) is designed such that it enables force compensation with respect to the tensioning element (2) for its translational movement from the clamping position, and the clamping element (1) is designed to be partially elastic in order to effect force compensation with respect to the tensioning element (2).

Description

[0001] The present invention relates to a clamping device according to the preamble of claim 1 and to a profile frame system and a profile according to the preambles of claims 24 and 25.

[0002] Clamping devices are known in numerous forms in the art. They are primarily used to create clamped connections. Clamped connections that are easily removable include screw connections, which press flat parts together. Clamped connections with a cylindrical effective surface are also known, such as cylindrical interference fits or interference fits with a tapered clamping sleeve.

[0003] These are often frictional connections or form-fitting connections.

[0004] Clamps also prevent the movement of a component through frictional engagement. The choice between the various connections usually depends on the requirements of the finished component.

[0005] To be effective, fabrics, fabric panels for insect, pollen, or particle screens, or for sun protection fabrics or pleated blinds, must be installed in front of walls surrounding windows, window openings, doors, doorways, or other openings. For this purpose, such fabrics or fabric panels are often manufactured in pre-assembled frames for windows, doors, and the like, although complete kits for such frames are also available. Such frames can, in particular, be tension frames or pivoting frames, which, in addition to the frame profiles, also feature the relevant fabric or fabric panel and other components, such as handle strips, handles, corner connectors, and suspension brackets.

[0006] Such frame systems and kits are usually prefabricated industrially and must be suitable for a wide variety of window frames, door frames, or other frame sizes. For this purpose, the use of clamping devices is often required, which must ensure the precise and secure positioning of such frames on the outer frames of windows, doors, reveals, and the like.

[0007] In this area of ​​application, it is typical that such frame systems should not be permanently fixed to the frames of doors, windows, or similar structures, for example, using screws, because this would cause permanent damage, especially after the frames are removed. This is especially true when such systems are used in rental agreements.

[0008] This is precisely when clamp mounting is desirable, for example in wall reveals or on window or door frames without drilling or screwing.

[0009] Clamping installation requires the use of clamping devices. This often presents the problem that the space available where the clamping devices or frame systems are to be mounted is limited, meaning there is often insufficient space for rotational movements to apply the necessary torque when installing such clamping devices, for example, via rotating components.

[0010] The clamping devices available on the market often do not meet this requirement because they are quite complex and expensive constructions.

[0011] Based on these disadvantages, the invention therefore poses the technical problem of providing clamping connections for such profile frame systems that ensure that the holding force is greater than the force acting on the component to be fastened. At the same time, it must be ensured that such a clamping device can also be removed again.

[0012] The aim is to continue to find a reliable solution that can be easily used even by inexperienced operators.

[0013] Furthermore, the aim is to provide a clamping device that is visually appealing and, in particular, not visually bulky, i.e. not visually disturbing.

[0014] Furthermore, the desired solution should be cost-effective and yet permanently applicable.

[0015] In addition, the clamping device should be usable both as an accessory and as a component of finished frame systems or kits.

[0016] These aspects are solved with a clamping device according to claim 1 as well as with a profile frame system according to claim 20 and a profile according to claim 21. Preferred embodiments are described in the subclaims.

[0017] According to the invention, a clamping device for profile frame systems for insect, pollen or particle protection grilles or for sun protection fabrics or pleated blinds is created, which clamping device has a clamping element and a tensioning element which are designed to be tensioned and relaxed relative to one another, wherein the clamping element can be moved translationally into and out of a clamping position, wherein the tensioning element brings about the translational movement of the clamping element into the clamping position and enables the translational movement of the clamping element out of a clamping position and wherein the tensioning element has a toothing which enables at least two locking stages which fix the clamping element in a clamping position and wherein the clamping element has complementary toothing and the clamping element is designed such that it enables force compensation with respect to the tensioning element for its translational movement from a clamping position.

[0018] The clamping device is arranged, for example, on a clamping curtain of a frame of a door, a window or a wall surrounding another opening.

[0019] The essential components of the device according to the invention for the described profile frame system are the clamping element and the tensioning element, which are preferably arranged in a housing having a base and a cover.

[0020] The invention therefore relates to a clamping element and a tensioning element as mechanical adjusting devices which are used to change their respective positions relative to one another, namely to shift and rotate them, as well as to hold or release their positions relative to one another.

[0021] According to the invention, their adjustment in relation to one another is carried out by bridging locking steps by rotating the clamping element in such a way that the clamping element moves in a translational movement away from the clamping element which remains fixed.

[0022] The locking mechanism fixes the clamping element and tensioning element in the pre-tensioned state created by the translational movement of the clamping element 1. The opposite release of the locking mechanism occurs by initially bridging the locking step paths due to a counter-rotating movement of the tensioning element and a translational return movement of the clamping element from the clamped position to a non-clamping position or, if desired, to a lower clamping position. The details of this are described below.

[0023] In order to achieve the desired effects, the clamping element and the tensioning element are preferably arranged adjacent to one another in approximately the same horizontal plane.

[0024] In the resting state, for example in the delivery state of the clamping device, the clamping element and the tensioning element can be arranged without contact, i.e. relaxed, or can touch each other in such a way that no relevant force is transmitted between the two components.

[0025] This changes when the clamping element rotates and due to its special design and arrangement. As rotation begins, the clamping element and the clamping element at least come into contact.

[0026] As a result of the increasing rotation of the clamping element, approximately in a clockwise direction, an increasing pressure is created on the clamping element for the duration of the rotation, which evades this pressure by a translational horizontal movement towards the achievable or desired clamping position.

[0027] In a preferred embodiment, this is achieved by designing the clamping element as an eccentric. The clamping element is then a disc-shaped structure that surrounds a sleeve. The clamping element designed as an eccentric has a center point outside its shaft axis. This translates a rotational movement of the clamping element into a translational longitudinal movement of the adjacent clamping element.

[0028] For this purpose, the eccentric has a bore into which the sleeve is inserted. The bore runs axially through the disc of the eccentric and the sleeve.

[0029] Furthermore, the sleeve has a polygonal opening, which, by operating a polygonal wrench inserted into it, allows the sleeve to be rotated clockwise and counterclockwise, thereby enabling the eccentric to be rotated. The sleeve and the eccentric are advantageously firmly connected to one another and can, in particular, be constructed from the same material.

[0030] The sleeve, in turn, is mounted in an opening located in a base that accommodates both the tensioning element and the clamping element, which will be discussed in more detail below. A suitable polygonal wrench, such as a hexagonal wrench, can be inserted into the polygonal opening, and this wrench can be used to rotate the sleeve and thus the eccentric in the desired direction.

[0031] Such a wrench is an example of a torque transmission device, with the help of which it is possible, in general terms, to rotate the eccentric.

[0032] Thus, in this preferred embodiment, the eccentric is used to displace the clamping element in the axial direction, whereby the rotation of the eccentric enables precise displacement of the clamping element.

[0033] The eccentric has an ammonite-like basic shape with a strongly tapered initial section and a continuously widening profile until its end, where the eccentric assumes its widest contour. The basic shape is therefore comparable to the beginning of a logarithmic spiral, in which the distance from this center changes by a certain factor with each revolution around its center. The radius therefore grows proportionally to the length of the arc or spiral. This means that with any rotational movement of a roughly right-turning eccentric, the distance of the outer side of the eccentric from its center increases. This means that with each such rotational movement of the eccentric, the clamping element is displaced laterally a short distance from an original resting position to a clamping position. This movement of the clamping element can therefore also be described as a forward movement.

[0034] The maximum displacement is therefore reached when the eccentric, in the case of clockwise rotation, is rotated by means of the torque transmission device until the maximum distance of the eccentric's outer line from its center point is reached. In practical use, this limit is reached or defined, for example, by a stop.

[0035] With a left-turning eccentric, all of this happens in reverse.

[0036] However, such an eccentric design would only allow the clamping element to be moved translationally from a rest position to a different position. However, this alone would not allow the clamping element to be permanently fixed in a definitive clamped position, because such a clamping effect would easily result in counterpressure from the clamping element, resulting in a countermovement and thus a state of mutual relaxation.

[0037] For this purpose, the invention therefore provides that the clamping element, advantageously in its design as an eccentric, has a toothing enabling at least two locking steps, which fix the clamping element in a clamping position.

[0038] To achieve this, the clamping element has complementary teeth.

[0039] For this purpose, the complementary toothing is designed in such a way that it assumes approximately the configuration of a horizontally positioned number, with the arcs of this complementary toothing engaging in the corresponding beads of the toothing of the clamping element or the eccentric.

[0040] Of course, a different geometric design of the complementary toothing can also be chosen.

[0041] It is sufficient for this complementary toothing to be positioned approximately in the middle of the clamping element's face. This is where contact occurs with the toothing of the eccentric, which, together with the sleeve, is positioned centrally relative to the width of the entire device.

[0042] This means that as the clamping element continues to rotate, the complementary toothing of the clamping element engages with a toothing bead of the eccentric which continuously changes according to the rotational movement of the eccentric, namely moving clockwise or counterclockwise.

[0043] It is preferred that the tensioning element's teeth have longitudinal ribs evenly distributed around its circumference. The more ribs there are, the finer the adjustment.

[0044] A higher number than two beads is preferred.

[0045] The uniform distribution of the longitudinal beads on the outside of the clamping element ensures a correspondingly uniform locking and thus fixation in the pre-tensioned state, depending on the position of the clamping element determined by the operator.

[0046] The longitudinal beads can have any suitable configuration of a conventional toothing. In particular, the longitudinal beads can be approximately semicircular. However, a flat-circular design of the beads is preferred because this results in a user-friendly, relatively soft locking action. A flat-circular design of the beads of the clamping element ensures smooth engagement of the complementary toothing of the clamping element, i.e., the force to be applied during continuous rotation of the eccentric can be designed in a user-friendly manner. In this way, the complementary toothing snaps relatively gently into these beads.

[0047] In this context, it is preferred if the longitudinal beads have flat edges in the transition area to the crests of the beads. This allows the crests of the respective beads to be overcome relatively easily and with smooth guidance by the complementary teeth of the clamping element as the eccentric continuously rotates. Especially in combination with a flat-circular design of the beads, this leads to particularly user-friendly handling. Furthermore, excessive wear of the crests of the beads with frequent use of the clamping device is avoided because a lower force is sufficient to overcome the friction when changing from one bead to another.

[0048] The respective bead can also have an undercut to ensure even more stable fixation of the complementary toothing in the bead. The depth of the undercut of these beads will be selected by the expert so that the locking mechanism is sufficiently pronounced to enable fixation of the clamping element and tensioning element in a desired clamping position, i.e., in the preloaded state.

[0049] According to the invention, it is further possible to release the fixation of the clamping element and the tensioning element, which occurs in a clamping position in the manner described above, and thus to convert it into a reverse, counter-directional translational movement of the clamping element. This movement, also referred to as a backward movement, and the construction proposed for it will be explained in more detail in connection with the description of the design of the clamping element.

[0050] The clamping element can be rotated clockwise and counterclockwise as described above, i.e., both right-hand and left-hand. While right-hand rotation results in a translational movement of the clamping element into a clamped position, the opposite left-hand rotation releases the clamped position. As the clamping element continues to rotate left, the clamping element undergoes increasing translational movement from the clamped position into a position where the clamping element can, if necessary, be returned to its original rest position in the fixture.

[0051] To enable rotation of the clamping element, it has a bore, as already mentioned in general terms, which serves to accommodate a sleeve and thus indirectly to accommodate a torque transmission element. The torque transmission element can be, for example, a polygonal wrench, e.g., a hexagonal wrench. Accordingly, it is preferred if the bore has a corresponding polygonal bore, ensuring a precise fit of the torque transmission element in the bore.

[0052] In order to increase the engagement and thus effective surface of the torque transmission element, it is advantageous if the clamping element or eccentric has a sleeve that extends higher than the clamping element or eccentric. The sleeve accommodates the polygonal bore into which the torque transmission element, e.g., a polygonal wrench, can be inserted for the purpose of clockwise or counterclockwise rotation of the eccentric.

[0053] Due to the previously described design of the clamping element as an eccentric, the clamping element is moved translationally into its maximum clamping position.

[0054] As already mentioned, the clamping element is designed to perform a translational movement from a rest position to a clamped position. It is also constructed to perform the opposite translational movement from an assumed clamped position to an original rest position or to a clamped position with a lower effect.

[0055] The skilled person may choose any suitable spatial geometric configuration capable of performing such movements.

[0056] In a spatially geometric design preferred by the invention, the clamping element is provided as a flat, rectangular component. This component can, if desired, also have guide grooves or guide rails on its sides.

[0057] Due to the described interaction between the clamping element and the tensioning element, it is advantageous if the clamping element is designed to be partially elastic. This can be achieved either through appropriate material selection or through structural measures. The elastic design causes a force comparison with the tensioning element in such a way that the clamping element can execute a translational movement from the clamped position. This movement is therefore a backward movement.

[0058] The partially elastic configuration preferably occurs in the spatial area where the clamping element and the tensioning element come into contact with each other. This is therefore preferably the area of ​​the end face of the clamping element, which has the complementary toothing.

[0059] If this area is designed to be somewhat elastic, a correspondingly smooth transition of the complementary teeth of the clamping element over the crests of the eccentric's grooves occurs when the eccentric is rotated in the direction that releases the clamping position. This facilitates the continuous, but backward-facing engagement in the respective grooves by the complementary teeth.

[0060] The elastic design also causes a certain springback of the complementary toothing when, as the eccentric rotates backwards, the successively adjacent crests of the beads are overcome and the complementary toothing snaps into the beads.

[0061] This effect of the respective detent not only occurs when the tensioning element or eccentric is rotated so that the clamping element performs a translational movement toward a clamped position. Rather, this effect also occurs in the opposite case, when the tension resulting from the detent is transformed into a state of relaxation, i.e., when the clamping effect is released. In this case, the eccentric is rotated in the opposite direction, e.g., counterclockwise if the eccentric is clockwise.

[0062] Because the complementary toothing is fixed in the clamping state due to the detent in the toothing of the clamping element, and because of this clamping state, opposing forces of the laterally displaced clamping element and the clamping element act on each other, during a rotational movement of the clamping element that releases the clamping effect, the complementary toothing of the clamping element must also overcome the adjacent crests of the adjacent beads in a backward direction in order to snap into the next toothing of the clamping element or eccentric in a backward direction. This continues until there is no longer any contact - or, with regard to the clamping effect, no relevant contact - between the toothing of the clamping element and the complementary toothing of the clamping element due to the - preferably - algorithmic spiral design of the eccentric.In this respect, an opposite rotational movement of the eccentric takes place to the rotational movement which results in a translational movement of the clamping element 1 towards a clamping position.

[0063] The opposite movement to release this clamping effect is facilitated, as explained, by the fact that the clamping element is partially elastic. This facilitates the grid-like return movement in the event of the clamping mechanism being released.

[0064] In one preferred embodiment, this objective is achieved by providing the clamping element with at least one material recess extending transversely to its translational movement on the side facing the tensioning element, i.e., adjacent to the clamping element or also referred to as proximal. However, several such material recesses can also be provided, e.g., three or five.

[0065] Other structural designs are possible. For example, it is possible to provide the clamping element 1 with a spring-elastic material arranged on the side facing the tensioning element. It is therefore conceivable to provide one or more compression springs there, which can be suitably mounted in or on the clamping element and are connected to the complementary toothing.

[0066] It is also possible to design the clamping element as a material compound and to equip the proximal area facing the clamping element with a spring-elastic material.

[0067] It is also possible to manufacture the clamping element entirely from a resilient material. A material used for elastomer springs may be suitable for this purpose. Depending on the hardness of this material, sufficient rigidity of the clamping element can be achieved despite its resilient properties. The specific material configuration depends on the specific application of the clamping device.

[0068] The above-described properties of the components discussed achieve all of the objectives of the invention.

[0069] In a further preferred embodiment, the clamping element has a clamping contour on its distal end face, which can consist of several material projections. This clamping contour reduces the stop surface of the clamping device on the respective contact side where the clamping device is to be supported during use. This is therefore gentle on the material.

[0070] It is further preferred if the clamping element and the tensioning element are arranged on a common base which offers both elements a common platform.

[0071] The base can have a stop element at its distal end, which is angled downwards approximately at a right angle from the base plate and which, in the rest position of the clamping device, runs approximately in an imaginary vertical line to the clamping contour of the clamping element. The stop element provides basic support for the clamping device. The clamping element protrudes horizontally beyond the stop element when it is brought into a corresponding clamping position by rotating the clamping element.

[0072] Preferably, the base has an opening for receiving the sleeve of the clamping element. This provides secure and stable mounting of the sleeve and thus also of the eccentric.

[0073] It is further preferred if the clamping element and the tensioning element are arranged in a housing. For this purpose, the base is connected to a cover, so that the base and the cover form a housing in which the above-described components are arranged.

[0074] In order to enable the clamping element or eccentric to be rotated in such a case, the cover has an opening to accommodate the sleeve of the clamping element.

[0075] After the clamping device has been installed and the clamping effect has taken place, the components arranged in the housing can be additionally protected by inserting a detachable element pin into the opening in the cover, whereby the cover and thus the housing as a whole can be closed.

[0076] Advantageously, the cover has symbols for the direction of rotation of the torque transmission element.

[0077] As mentioned above, the present invention can be used not only for insect, pollen, and / or particle screens and sun protection fabrics, but also for pleated blinds. When used in the context of pleated blinds, it is further advantageous if the base of the clamping device has a pin protruding from its underside for receiving the pleated blind and for attaching it to a frame of a window, door, or wall.

[0078] The above description of the invention is based on a design of a clamping device in which the translational displacement of the clamping element towards a clamping position is achieved by the design of the clamping element as an eccentric. However, the invention can also be constructed in a way in which the clamping element has a sleeve and a bore for receiving a torque transmission element, wherein the sleeve is arranged in a bore which is in turn arranged eccentrically, so that the clamping element moves in an eccentrically designed bore upon a rotational movement of the torque transmission element. The part carrying out the rotational movement does not itself have to be designed eccentrically in this design, but can of course still be.

[0079] The invention described above is explained in more detail using an exemplary embodiment, to which the invention is of course not limited, with reference to the following figures. Here, the figures show: Fig. 1: a schematic diagram of a finished profile frame system with arranged clamping device; Fig. 2: a detailed view of the arrangement of the clamping device according to the invention within a door frame on a clamping curtain; Fig. 3: a detailed view of the individual components of the entire clamping device; Fig. 4: a sectional view of a clamping device; Fig. 5: a schematic diagram of the locking position of the clamping element and the tensioning element at the beginning of a rotational movement of the tensioning element which effects the clamping function; Fig. 6: a schematic diagram as in Fig. 5 when the translational movement of the clamping element towards a clamping position has ended; Fig. 7: a schematic diagram of how Fig. 6 when the translational movement of the clamping element is completed, back to its non-clamping position; Fig. 8: a detailed view of the mutual engagement of the teeth of the clamping element and the complementary teeth of the clamping element; Fig. 9: a representation of a clamping device for a pleated blind; Fig. 10: a schematic diagram of the installation of the clamping device in a pleated blind.

[0080] The essential components of the device according to the invention for the described profile frame system are the clamping element 1 and the tensioning element 2, which are preferably arranged in a housing 34 having a base 5 and a cover 8. The clamping device 12 is arranged on a clamping curtain 23 of a frame of a door, a window, or a wall 22 surrounding another opening. Fig. 2. It can be guided on the profile frame system, which has corresponding profiles 10, via corresponding profile grooves 11 and fastened at the desired location, cf. Fig. 1. The profile frame system accommodates a fabric 13, e.g. insect screen or sun protection fabric or pleated blind 18.

[0081] In the Fig. 3, Fig. 5, Fig. 6, Fig. In the embodiment shown in Figure 7, this is achieved by designing the clamping element 2 as an eccentric 25. The clamping element 2 is then a disc-shaped structure that surrounds a sleeve 29. The clamping element 2 designed as an eccentric 25 has a center point outside its shaft axis 35, Fig. 4, Fig. 5. This converts a rotational movement of the clamping element 2 into a translational longitudinal movement of the adjacent clamping element 1.

[0082] For this purpose, the eccentric 25 has a bore 16 in a sleeve 29, which extends in the axial direction through the disc of the eccentric 25. The sleeve 29 has a polygonal opening 16, which enables rotation of the sleeve 29 and, together with it, rotation of the eccentric 25 in a clockwise and counterclockwise direction. In order to increase the engagement and thus effective surface of the torque transmission element, the embodiment according to Fig. 3 the clamping element 2 or the eccentric 25 is arranged around a sleeve 29, which projects above the clamping element 2 or the eccentric 25 in height, which in Fig. 3. The sleeve 29 and the eccentric 25 are connected to each other in this embodiment.

[0083] The sleeve 29 is in turn mounted in an opening 32 which is arranged in a base 5 which accommodates both the tensioning element 2 and the clamping element 1, Fig. 4, Fig. 5. A suitable polygonal key, e.g. a hexagon key (not shown), can be inserted into the polygonal opening 16 and with the aid of this key the eccentric 25 can be rotated in the desired direction.

[0084] Thus, the eccentric 25 is used in this preferred embodiment to move the clamping element 1 in the axial direction according to the Fig. 6, whereby the rotation of the eccentric enables the clamping element 1 to be moved precisely in the direction of the arrow.

[0085] The eccentric 25 has an ammonite-like basic shape with a strongly tapered initial section and a continuously widening course up to its end, where the eccentric 25 assumes the widest contour. The basic shape is therefore comparable to the beginning of a logarithmic spiral, in which with each revolution around its center, the distance from this center changes by a certain factor. The radius therefore grows proportionally to the arc or spiral length. This means that with any rotational movement of an approximately clockwise rotating eccentric, the distance of the outer side of the eccentric from its center increases. This means that with each such rotational movement of the eccentric 25, the clamping element 1 is moved a little bit laterally from an original Fig. 5 shown resting position to a Fig. 6 shown clamping position.

[0086] The maximum displacement is therefore achieved when the eccentric, in the case of clockwise rotation, is rotated by means of the torque transmission device until the maximum distance of the eccentric's outer line from its center point is reached. In practical use, this limit is achieved, for example, by a stop 6, see Fig. Fig. 5.

[0087] However, with such a design of an eccentric 25, only the translational displacement of the clamping element from a rest position to a different position would be possible. However, a permanent fixation of the clamping element in a definitive clamping position would not be possible by this alone, because such a clamping effect would easily result in counterpressure from the clamping element 1, resulting in a countermovement.

[0088] For this purpose, the invention therefore provides that the clamping element 2 in its design as an eccentric 25 has a toothing 3 enabling at least two locking stages, Fig. 3, Fig. 5, which fix the clamping element 1 in a clamping position.

[0089] For this purpose, the clamping element 1 has a complementary toothing 9, Fig. 5 - 8.

[0090] For this purpose, the complementary toothing 9 is designed in such a way that it assumes approximately the configuration of a horizontally lying number 3, wherein the arcs of this complementary toothing 9 engage in the corresponding beads 26 of the toothing 3 of the clamping element 2 or of the eccentric 25, Fig. 8. The resulting locking of the toothing 3 of the clamping element 2 and the complementary toothing 9 of the clamping element 1 is shown in an enlarged illustration in Fig. 8 shown.

[0091] It is sufficient that this complementary toothing 9 is arranged approximately in the middle of the front side of the clamping element 1. This is where the contact with the toothing 3 of the eccentric 25 occurs, which, together with the sleeve 29, is arranged centrally with respect to the width of the entire device. Fig. 5.

[0092] This means that as the clamping element continues to rotate, the complementary toothing 9 engages with a toothing of the eccentric 25 which continuously changes in accordance with the rotational movement of the eccentric 25, namely a toothing which moves clockwise.

[0093] In the exemplary embodiment, the toothing 3 of the clamping element 2 has a plurality of longitudinal beads 26 evenly distributed over its circumference, cf. Fig. 5.

[0094] The uniform distribution of the longitudinal beads 26 on the outside of the clamping element 2 results in a correspondingly uniform locking and thus fixation in the pre-tensioned state.

[0095] The longitudinal beads 26 have a flat circular design 37, Fig. 8, because this results in a user-friendly, relatively soft locking action. The flat, circular design of the grooves 26 of the clamping element 2 ensures smooth engagement of the complementary toothing 9 of the clamping element 1, i.e., the force to be applied during continuous rotation of the eccentric 25 can be designed in a user-friendly manner. In this way, the complementary toothing 9 snaps relatively gently into these grooves.

[0096] In this context, as in Fig. 5, Fig. 8 - the longitudinal beads 26 over flat edges 27. This makes it possible for the crests 36 of the respective beads 26 to be overcome relatively easily and with smooth guidance by the complementary toothing 9 of the clamping element 1 during continuous rotation of the eccentric. Especially in conjunction with a flat circular design 37 of the beads 26, this leads to particularly user-friendly handling. In addition, excessive wear of the crests 36 of the beads 26 with frequent use of the clamping device is avoided because a lower force is sufficient to overcome the friction when changing from one bead to another. The depth of these beads 26 will, of course, be selected by the person skilled in the art such that the detent is sufficiently pronounced to fix the clamping element 1 and the clamping element 2 in a desired, Fig. 6 shown, clamping position, ie in the pre-tensioned state.

[0097] According to the invention, it is further possible to release the fixation of the clamping element 1 and the tensioning element 2 in a clamping position in the manner described above, i.e. to convert it into a reverse, opposite translational movement of the clamping element 1, as indicated by the arrow direction in Fig. 7 is shown.

[0098] The clamping element 2 can be rotated clockwise and counterclockwise as described, i.e. right-handed (only shown, Fig. 3) and anti-clockwise. If the clockwise rotation leads to a translational movement of the clamping element 1 into a clamping position, Fig. 6, the opposite left turn causes the clamping position to be released, Fig. 7. With progressive left-hand rotation of the clamping element 2, an increasing translational movement of the clamping element 1 then takes place from the assumed clamping position into a position in which the clamping element 1 can, if necessary, be returned to its original rest position in the device, cf. Fig. 7.

[0099] In Fig. 5 shows the position that the clamping element 1 and the tensioning element 2 assume relative to each other when both elements are still in a rest position relative to each other and the tensioning element 2 is transferred into an initial locking position in conjunction with the complementary toothing 9 of the clamping element at the beginning of the rotation. Fig. 6 shows the position of both parts in the state of complete rotation of the clamping element 1. Due to the above-described design of the clamping element 1 as an eccentric 25, the clamping element 1 is moved translationally into its maximum clamping position.

[0100] The clamping element 1 is designed to perform a translational movement from a rest position to a clamped position. It is also constructed to perform the opposite translational movement from a clamped position.

[0101] The spatial geometric construction of the clamping element 1 is in itself irrelevant for these purposes.

[0102] In the illustrated embodiment of the invention, the clamping element 1 is provided as a flat, rectangular component. This component also has guide grooves or guide rails on its sides, if desired. The spatial geometric configuration is approximately Fig. 3 can be recognized.

[0103] Due to the described interaction of clamping element 1 and tensioning element 2, the clamping element 1 is designed to be partially elastic. The elastic design causes a force balance with respect to the tensioning element 2 in such a way that the clamping element can perform a translational movement from the clamped position, as indicated by the backward-pointing arrow in Fig. 7 is recognizable.

[0104] The partially elastic configuration occurs in the spatial area where the clamping element 1 and the tensioning element 2 come into contact with each other. This is therefore the area of ​​the end face of the clamping element, which has the complementary toothing 9. A transition of the complementary toothing 9 of the clamping element 1 over the crests of the beads 26 of the eccentric 25 takes place when the latter is rotated in the direction in which a release of the clamping position is effected. This facilitates the continuous, backward-directed locking into the respective beads 26 by the complementary toothing 9.

[0105] The elastic design also causes a certain springback of the complementary toothing 9 when, with the eccentric 25 rotating backwards, the successively adjacent crests of the beads 26 are overcome and the complementary toothing snaps into the beads, cf. Fig. 7.

[0106] This effect of the respective detent not only occurs when the clamping element 2 or the eccentric 25 is rotated so that the clamping element 1 performs a translational movement towards a clamping position. Rather, this effect also occurs in the opposite case, when the state of tension resulting from the detent is led to a state of relaxation, i.e. when the clamping effect is released. Fig. 7. In this case, the eccentric 25 is rotated in the opposite direction, e.g., in the left direction if it is a right-hand rotating eccentric. Since the complementary toothing 9 is fixed in the clamping state due to the detent, and since this clamping state results in opposing forces from the laterally displaced clamping element 1 and the tensioning element 2 acting on one another, when the clamping element 2 rotates to release the clamping effect, the complementary toothing 9 of the clamping element 1 must also overcome the adjacent ridges of the adjacent beads 26 in order to snap into the next toothing 3 of the tensioning element 2 or of the eccentric 25. This continues until there is no longer any contact between the toothing 3 of the tensioning element 2 and the complementary toothing 9 of the clamping element due to the algorithmic spiral design of the eccentric 25.In this respect, an opposite rotational movement of the eccentric takes place to the rotational movement which results in a translational movement of the clamping element 1 towards a clamping position.

[0107] The opposite movement to release this clamping effect is facilitated by the fact that the clamping element 1 is partially elastic. This facilitates the grid-like return movement in the event of the clamping mechanism being released.

[0108] In terms of construction, this objective is preferably achieved in that the clamping element 1 has, on the side facing the tensioning element 2, a plurality of material recesses 30 extending transversely to its translational movement.

[0109] In the embodiment shown, the clamping element 1 has on its distal end face 31 a clamping contour 7 which consists of several material projections, Fig. 3. This clamping contour 7, which is in Fig. 3, Fig. 5, results in a reduction of the stop surface of the clamping device on the respective contact side on which the support of the clamping device is to take place during use.

[0110] Furthermore, it is shown that the clamping element 1 and the tensioning element 2 are arranged on a common base, which provides a common platform for both elements. Such a base plate is approximately Fig. 3, Fig. 5, Fig. 7 shown.

[0111] The base 5 has at its distal end a stop element 17 which is angled downwards approximately at a right angle from the base plate 5 and which, in the rest position of the clamping device, runs approximately in an imaginary vertical line to the clamping contour 7 of the clamping element 1. The stop element 17 provides basic support for the

[0112] clamping device 12. The clamping element 1 projects horizontally over the stop element 17 when it is brought into a corresponding clamping position by the rotation of the clamping element 2, Fig. 6.

[0113] Furthermore, the base 5 has an opening 32 for receiving the sleeve 29 of the clamping element 2, Fig. 3. This creates a safe and stable mounting of the sleeve 29 and thus also of the eccentric 25.

[0114] Furthermore, the clamping element 1 and the tensioning element 2 are arranged in a housing 34, as shown in Fig. 4 is shown in a sectional view. For this purpose, the base 5 is connected to a cover 8, so that the base 5 and the cover 8 form a housing 34 in which the above-described components are arranged.

[0115] In order that the clamping element 2 or the eccentric 25 can be rotated in such a case, the cover 8 has an opening 33 for receiving the sleeve 29 of the clamping element 2, Fig. 3.

[0116] After the clamping device 12 has been installed and the clamping effect has taken place, the components arranged in the housing 34 can be additionally protected by inserting a detachable element pin 4 into the opening 33 of the cover 8, whereby the cover 8 and thus the housing 34 as a whole can be closed. Fig. 3.

[0117] Advantageously, the cover 8 has symbols for the direction of rotation 15 of the torque transmission element, cf. Fig. 3.

[0118] In the case of use in the context of pleated blinds, the example shown in Fig. 9, Fig.10, that the base 5 of the clamping device 21 has a pin 20 projecting from its underside for receiving in a pleated blind 18 and for fastening it to a frame 22 of a window, a door or a wall. List of reference symbols 1 clamping element 2 clamping element 3 Toothing clamping element 4 element pins 5 Floor 6 Stop clamping element 7 clamping contour 8 lids 9 Complementary toothing clamping element 10 Profile 11 Profile groove 12 clamping elements total / clamping device 13 fabrics 14 Fabric splint 15 Direction of rotation 16 polygonal opening for direction of rotation (bore) 17 Stop element 18 pleated blinds 19 Pleated blind with clamp element 20 cones 21 Clamping device pleated blind 22 Door frame 23 Clamp curtain 24 Force compensation suspension / damping 25 eccentric 26 bead 27 Edge of the bead 28 remaining free 29 sleeve 30 Material recess 31 distal front side to 1 32 opening for 29 33 opening for 29 34 housings 35 shaft axis to 2 36 comb 37 flat circular design of the bead 26

Claims

[1] Clamping device (12) for a profile frame system with a clamping element (1), a clamping element (2), which are designed to be fixable and detachable from each other, characterized by , that the clamping element (1) can be moved translationally into and out of a clamping position, the clamping element (2) causes the translational movement of the clamping element (1) into the clamping position and enables the translational movement of the clamping element (1) out of the clamping position, the clamping element (2) has a toothing (3) allowing at least two locking steps, which fix the clamping element (1) in the clamping position, the clamping element (1) has a complementary toothing (9), the clamping element (1) has at least one material recess (30) on the side facing the tensioning element (2) running transversely to its translational movement, the clamping element (1) is designed such that it enables force compensation with respect to the tensioning element (2) for its translational movement from the clamping position, and the clamping element (1) is designed to be partially elastic in order to effect force compensation with respect to the tensioning element (2). [2] Clamping device according to claim 1, characterized by that the clamping element (2) is designed as an eccentric (25). [3] Clamping device according to claim 1, characterized by that the toothing (3) of the clamping element (2) has longitudinal beads (26) evenly distributed over the circumference of the clamping element (2). [4] Clamping device according to claim 3, characterized by that the longitudinal beads (26) are flat-circular (37). [5] Clamping device according to claim 3 or claim 4, characterized by that the longitudinal beads (26) have flat edges (27). [6] Clamping device according to claim 1, characterized bythat the clamping element (2) has a bore (16) for receiving a torque transmission element. [7] Clamping device according to claim 6, characterized by that the bore (16) is designed as a polygonal bore. [8] Clamping device according to claim 1 or claim 2 or claim 6, characterized by that the clamping element (2) has a sleeve (29) and engages around it. [9] Clamping device according to one or more of the preceding claims, characterized by that the clamping element (2) has a stop (6). [10] Clamping device according to claim 1, characterized by that the clamping element (1) has a spring-elastic material on the side facing the tensioning element (2). [11] Clamping device according to claim 1, characterized by that the clamping element (1) has a clamping contour (7) on its front side (31). [12] Clamping device according to claim 1, characterized bythat the clamping element (1) and the tensioning element (2) are arranged on a base (5). [13] Clamping device according to claim 12, characterized by that the base (5) has a stop element (17) at one end. [14] Clamping device according to claim 12, characterized by that the base (5) is designed to receive a cover (8) and forms a housing (34) with the cover. [15] Clamping device according to claim 14, characterized by that the cover (8) has an opening (33) for receiving the sleeve (29) of the clamping element (2). [16] Clamping device according to claim 15, characterized by that the opening (33) of the cover (8) can be closed with an element pin (4). [17] Clamping device according to claim 14, characterized by that the cover (8) has symbols for the direction of rotation of the torque transmission element. [18] Clamping device according to one or more of claims 12 to 17, characterized bythat the base (5) has a pin (20) projecting from its underside for receiving in a pleated blind (18) and for fastening it to a frame (22) of a window, a door or a wall. [19] Clamping device according to one or more of claims 12 to 18, characterized by that the base (5) has a profile for receiving in a profile groove (11) of the profile frame system for a protective grille against insects, pollen and / or particles or for a sun protection fabric for arranging a fabric (13) or the pleated blind (18). [20] Profile frame system for an insect, pollen or particle protection grid or the sun protection fabric (13) or for the pleated blind (18), characterized by that it comprises a clamping device (12) according to one or more of claims 1 to 19. [21] Profile (10) of a profile frame system for insect, pollen or particle protection grilles or for the sun protection fabric or for the pleated blind (18) with the profile groove (11) for receiving the clamping device (12; 21) according to one or more of claims 1 to 19.

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