Clamping closure device for tool-less mounting and system for tool-less mounting of a clamping closure device

Abstract

The invention relates to a clamping closure device (1) for toolless mounting on two components (3A, 3B) to be connected to one another, comprising a first fixing element (5A) for connecting the clamping closure device (1) to a first component (3A), a second fixing element (5B) for connecting the clamping closure device (1) to a second component (3B) and a clamping lever (2) for manipulating the clamping closure device (1), wherein the clamping lever (2) is movably connected to at least one of the two fixing elements (5A, 5B). In order to be able to toollessly mount the clamping closure device (1) on two components (3A, 3B) to be connected to one another, it is provided that the first fixing element (5A) and / or the second fixing element (5B) has at least one connection mechanism (6A, 6B, 7A, 7B, 8A, 8B) for producing a toollessly mountable, in particular form-fitting, connection with a cutout (13A, 13B) provided in the components (3A, 3B). The invention also relates to a system for toollessly mounting such a clamping closure device (1) on two components (3A, 3B) to be connected to one another.

Description

TECHNICAL FIELD

[0001] The invention relates to a clamping closure device for toollessly mounting on two components to be connected to one another, comprising a first fixing element for connecting the clamping closure device to a first component, a second fixing element for connecting the clamping closure device to a second component and a clamping lever for manipulating the clamping closure device, wherein the clamping lever is movably connected to at least one of the two fixing elements.

[0002] The invention also relates to a system for toollessly mounting a clamping closure device on two components to be connected to one another, comprising a clamping closure device as described above and the two components to be connected to one another. BACKGROUND

[0003] Different configurations of clamping closure devices are known from the prior art. Such clamping closure devices are used for releasably connecting two components to one another, for example for connecting a door to a door frame. In order to manipulate the clamping closure device, the clamping closure device often has a clamping lever which is designed in such a way that it can only be moved from a closed ("clamped") position into an open ("released") position with a certain force and thus unintentional opening is avoided.

[0004] One challenge with clamping closure devices is to fix the clamping closure device on the components which are connected to one another by means of the clamping closure device. In order to make the fixing, special tools are often required, for example for producing a riveted connection or for producing a threaded connection. Furthermore, in the case of thin-walled components such as sheet metal, some kinds of connection, for example a welded connection, can only be produced with great difficulty. SUMMARY

[0005] It is therefore an object of the present invention to design and improve a clamping closure device as described above in such a way that the clamping closure device can be assembled in a reliable manner without the use of tools on the components to be connected to one another by means of the clamping closure device.

[0006] This object is achieved in the clamping closure device according to the invention in that the first fixing element and / or the second fixing element has at least one connection mechanism for producing a toollessly mountable, in particular form-locked, connection to a recess provided in the component.

[0007] The invention relates to a clamping closure device which can be assembled toollessly on two components to be connected to one another. The clamping closure device comprises a first fixing element for connecting the clamping closure device to a first component and a second fixing element for connecting the clamping closure device to a second component. Both fixing elements are thus used to achieve the connection of the clamping closure device to the components to be connected. Since the components usually have flat faces, it is preferable for the fixing elements also to have at least one flat (bearing) face each for bearing on the components to be connected. The clamping closure device furthermore comprises a clamping lever for manipulating the clamping closure device. The clamping lever is movably connected to at least one of the two fixing elements, for example by means of an articulated rocker. The clamping lever can also be connected to both fixing elements, wherein one of the two connections should be designed to be releasable, whereby the clamping closure device can be opened completely.

[0008] According to the invention, the first fixing element and / or the second fixing element has at least one connection mechanism for producing a toollessly mountable, in particular form-fitting, connection to a cutout provided in the component, whereby the toolless mounting of the connection should be achieved by the respective design of the fixing element. In particular, for this purpose a protruding connection mechanism can be provided on the fixing element, which can be inserted into the component to be connected (or into a cutout provided there). In this way a reliable connection, in particular a form-fitting connection (for example a latching connection) and / or a force-fitting connection (for example a clamping connection) can be achieved. The component to be connected only has to be prepared by punching or cutting a correspondingly shaped cutout. Preferably, the connection is a releasable connection, so that the clamping closure device can be detached again if necessary. Preferably, the connection mechanism is designed in such a way that it is surrounded or covered by the clamping lever in the closed position of the clamping lever. This has the advantage that the connection mechanism is only accessible from the back or from the inside in the assembled state with the clamping lever closed. In this way, the clamping closure device can fulfill the function of a lock (for example by making the clamping lever lockable), since an unauthorized detachment from the outside is not possible.

[0009] According to one constructional variant of the clamping closure device, the at least one connection mechanism is configured as a latching hook. The design as a hook offers a simple and reliable possibility of producing a connection, in particular a form-fitting connection. For this purpose, the latching hook can be guided through a cutout in one of the components to be connected, in order to hook over the edge of the cutout from the back of the cutout.

[0010] In another design of the clamping closure device it is provided that at least one of the connecting mechanisms is configured as a mounting bracket with a spring element. As a design of a mounting bracket with a spring element likewise offers a simple and reliable possibility of producing a connection, in particular a form-fit and / or force-fit connection. For this purpose, the mounting bracket can be inserted into a cutout of one of the components to be connected, wherein the spring element arranged on the mounting bracket elastically deforms upon passing through the cutout due to its elasticity and springs back again after passing through, i.e. in the installed position, and hooks behind the edge of the cutout from the back side of the component.

[0011] Preferably, each of the fixing elements has a closure hook and a mounting bracket with a spring element, wherein the closure hook and the mounting bracket with the spring element are preferably arranged on opposite sides and in opposite directions, i.e. "back-to-back" with respect to each other. In this way, the fixing elements are fixed in their position on respectively two opposite sides of the cutout, wherein the fixing on one side is achieved by means of the closure hook and wherein the fixing on the other (opposite) side is achieved by means of the mounting bracket and its spring element.

[0012] According to a further design of the clamping closure device, a joint rocker is provided, which is rotatably connected with its first end to the clamping lever and with its second end to one of the two fixing elements. By means of the joint rocker a double rotatable bearing can first be achieved. Furthermore, if one of the ends of the joint rocker, for example the end bearing on the fixing element, is arranged position- fixedly, it can also be achieved that the other end of the joint rocker, for example the end bearing on the clamping lever, is forced to follow along a circular path. In this way it can be achieved that the clamping lever has to pass a "dead point" when closing, whereby it can be achieved that the clamping lever remains thereafter in its closed position.

[0013] For this purpose it is also proposed that the clamping lever and / or one of the two fixing elements has a receptacle for rotatably bearing one of the ends of the joint rocker. By providing a receptacle on the clamping lever and / or on one of the two fixing elements, the end of the joint rocker can be rotatably connected with the clamping lever and / or with the fixing element in a simple manner. The receptacle can for example be designed in such a way that the end of the joint rocker can be pressed into the receptacle and rotatably held there by means of a latching connection.

[0014] A further design of the clamping closure device provides that the clamping lever has a protrusion and one of the two components has a recess, whereby the protrusion can be introduced into the recess in order to produce a releasable connection. By means of the protrusion and the recess a form-fit, releasable connection can be achieved in a simple manner. In particular it can be achieved that the protrusion hooks into the recess like a hook. This has the advantage that the greater the tensile load caused by the clamping lever, the better the connection remains together.

[0015] According to a further design of the clamping closure device, the clamping lever has at least one gripping element. The gripping element can be, for example, a recess or a protrusion. The gripping element is intended to make it easy to grip and lift the clamping lever and is therefore preferably arranged on the end of the clamping lever which is intended to be lifted by the user.

[0016] According to a further design of the clamping closure device, the clamping closure device is made of plastic and / or of metal. In particular, it can be provided that the clamping lever and / or the fixing element are made of plastic and / or of metal. Manufacture from plastic is cost-advantageous and allows flexible shaping, whereas by manufacture from metal a very high rigidity and tensile strength can be achieved. Preferably, different parts of the clamping closure device can also be made of different materials. Preferably, the parts of the clamping closure device which can be clamped into the components, i.e. the fixing element and the connecting means arranged thereon, such as the closure hook and the fitting bracket with spring element, are made of plastic, since this simplifies the clamping of the fixing element due to the large elasticity of the plastic. As plastic, for example, polyamide or POM-H (Delrin from DuPont) can be used. If the clamping closure device has connecting pieces, for example a joint rocker for connecting the clamping lever with one of the fixing elements, these connecting pieces can be made of plastic or, if a particular wear resistance is required, also of metal. The objects described above are also achieved by a system for toollessly mounting a clamping closure device on two components to be connected to one another. The system comprises a clamping closure device of one of the designs described above and two components to be connected to one another. The system is characterized in that the two components each have a cutout which advantageously cooperates with the clamping closure device and in particular is prepared for the connecting means of the clamping closure device, such as the closure hook or the fitting bracket with spring element, to engage into the cutout. Formaldehyde The clamping closure device is prepared Homopolymer for toollessly mounting on two components to be connected to one another. The system comprises a clamping closure device of one of the designs described above and two components to be connected to one another. The system is characterized in that the two components each have a cutout which advantageously cooperates with the clamping closure device and in particular is prepared for the connecting means of the clamping closure device, such as the closure hook or the fitting bracket with spring element, to engage into the cutout.

[0017] Finally, according to a design of the system, the two components are made of sheet metal and the cutouts are substantially rectangular. The connection of the clamping closure device to thin-walled components made of sheet metal is particularly demanding, since some joining methods, such as a welded connection, are difficult to produce with thin-walled materials. By providing a rectangular cutout, a form-fit connection can be produced in a simple manner, for example when the connecting means of the clamping closure device, such as the closure hook or the fitting bracket with spring element, engage in the cutout. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application is explained below by means of the drawings, which show only preferred embodiments. In the drawings,

[0019] Figure 1a perspective view of the clamping catch device according to the application in assembled condition in closed position,

[0020] Figure 2 a perspective view of the clamping catch device according to the application in assembled condition in closed position, Figure 1 Figure 1 a sectional view of the clamping catch device according to the application in assembled condition in closed position along the section II-II shown in

[0021] Figure 3 a perspective view of the clamping catch device according to the application in assembled condition in closed position, Figure 1 Figure 1 a sectional view of the clamping catch device according to the application in assembled condition in closed position along the section III-III shown in

[0022] Figure 4 a perspective view of the clamping catch device according to the application in assembled condition in closed position, Figure 3

[0023] Figure 5 a perspective view of the clamping catch device according to the application in assembled condition in closed position, Figure 3 DETAILED DESCRIPTION

[0024] Figure 1 a perspective view of the clamping catch device according to the application in assembled condition in closed position. Since the clamping catch device 1 in Figure 1 closed position is shown in Figure 1 , only its clamping lever 2 can be seen. The parts of the clamping catch device 1 which are covered by the clamping lever 2 are explained in detail in connection with the following figures. The clamping catch device 1 serves for releasably connecting a first component 3A with a second component 3B. One of the two components 3A can be for example a door, flap or cover, while the second component 3B can be for example a frame of a door or cabinet. In the example shown in

[0025] Figure 2 a perspective view of the clamping catch device according to the application in assembled condition in closed position, Figure 1 Figure 1 a sectional view of the clamping catch device according to the application in assembled condition in closed position along the section II-II shown in Figure 2 Figure 2 ​​​​​​As can be seen in the figures, the clamping closure device 1 has, in addition to the clamping lever 2, a first fixing element 5A and a second fixing element 5B. The first fixing element 5A serves to produce a connection to the first component 3A, for which purpose the first fixing element 5A has a closure hook 6A and a mounting bracket 7A with a spring element 8A which is elastic. Conversely, the second fixing element 5B serves to produce a connection to the second component 3B, for which purpose the second fixing element 5B also has a closure hook 6B and a mounting bracket 7B with a spring element 8B which is elastic. The connection of the two fixing elements 5A, 5B to the two components 3A, 3B is further elucidated in connection with the following figures.

[0026] Furthermore, the clamping closure device 1 shown in Figure 2 has a joint rocker 9, by means of which the clamping lever 2 is movably connected to the first fixing element 5A. For this purpose, not only the clamping lever 2 but also the first fixing element 5A has a receiving portion 10 in which the joint rocker 9 is rotatably supported, wherein a first end portion 9' of the joint rocker 9 is supported in a first receiving portion 10' and wherein a second end portion 9" of the joint rocker 9 is supported in a second receiving portion 10". The joint rocker 9 has a longitudinal axis L9 which extends through the first end portion 9' and the second end portion 9" of the joint rocker 9. The clamping lever 2 can also be connected to the second fixing element 5B, for which purpose the clamping lever 2 has a protrusion 11 on its end which is opposite the gripping element 4, and for which purpose the second fixing element 5B has a recess 12 into which the protrusion 11 can engage in order to produce a form-fit releasable connection. Alternatively, the protrusion 11 can be provided on the second fixing element 5B and the recess 12 can be provided on the clamping lever 2.

[0027] Figure 3 The clamping closure device 1 shown in Figure 1 is shown in a closed position in a sectional view along Figure 1 the section plane III-III shown in Fig. 3. The previously mentioned regions of the clamping closure device 1 are also provided with corresponding reference numerals in Figure 3 . As a result of the changed position of the section it can be seen that the first component 3A has a first cutout 13A into which the closure hook 6A of the first fixing element 5A and the mounting bracket 7A with its elastic spring element 8A engage and produce a form-fit releasable connection between the first component 3A and the first fixing element 5A. It can also be seen that the second component 3B has a second cutout 13B into which the closure hook 6B of the second fixing element 5B and the mounting bracket 7B with its elastic spring element 8B engage and produce a form-fit releasable connection between the second component 3B and the second fixing element 5B.

[0028] The clamping closure device 1 shown in Figure 3The closed position shown in Figure 3 is characterized in that the clamping lever 2 has a longitudinal axis L2 which encloses with the surfaces of the first and second members 3 A, 3B a clamping lever angle a1 which is in the range between 0° and 15°, in particular in the range between 0° and 10°. By the clamping lever 2 being lifted in the region of its gripping element 4, the clamping lever 2 can be moved from the (in Figure 4 shown) closed position into the (in Figure 3 shown) open position. This results in a rotational movement of the first end 9' of the articulated rocker 9 along a circular path K, the center point M of which is formed by the second end 9" of the articulated rocker 9. In the closed position shown in , the articulated rocker 9 is arranged such that its first end 9' is arranged lower, i.e. closer to the surfaces of the first and second members 3 A, 3B, than its second end 9", so that the longitudinal axis L9 of the articulated rocker 9 extends upwardly from the first end 9' to the second end 9".

[0029] Figure 4 The open position of the clamping lock 1 shown in Figure 3 . The previously mentioned regions of the clamping lock 1 are also provided with corresponding reference signs in Figure 4 . The open position differs from the closed position in the changed position of the clamping lever 2: in the open position of the clamping lever 2, the longitudinal axis L2 encloses with the surfaces of the first and second members 3 A, 3B a clamping lever angle a2 which is greater than 10°, in particular greater than 15° and thus extends more steeply than in the closed position. In the open position shown in Figure 4 , the position of the articulated rocker 9 is also changed; the articulated rocker 9 is arranged such that its first end 9' is arranged higher, i.e. further away from the surfaces of the first and second members 3 A, 3B, than its second end 9", so that the longitudinal axis L9 of the articulated rocker 9 extends downwardly from the first end 9' to the second end 9". Figure 4It can further be seen that the lifting of the clamping lever 2 leads to the protrusion 11 of the clamping lever 2 being moved out of the recess 12 of the second fixing element 5B, whereby the form-fit connection between the second fixing element 5B and the clamping lever 2 can be released, so that the clamping lever 2 can be lifted from the second fixing element 5B and then only still connected (via the joint rocker 9) with the first fixing element 5A. In this way, the first fixing element 5A and the second fixing element 5B can be connected to one another (closed position of the clamping lever 2) and separated from one another (open position of the clamping lever 2). The separation of the protrusion 11 and the recess 12 upon lifting of the clamping lever 2 is the result of the movement of the first end 9' of the joint rocker 9 along the circular track K, which causes the protrusion 11 to be drawn first more deeply into the recess 12 upon lifting of the clamping lever 2 until a “dead point” is reached (the longitudinal axis L9 of the joint rocker 9 is parallel to the surface of the first member 3A and the second member 3B), beyond which the protrusion 11 is moved out of the recess 12 again. This “dead point” is a typical feature of the clamping lock 1, since by means of it it is possible to achieve that the clamping lever stays in the desired position (in particular the closed position) and does not open unintentionally.

[0030] Finally, Figure 5 The disassembly position of the clamping lock 1 is shown in Figure 3 The previously mentioned regions of the clamping lock 1 are indicated in Figure 5The respective reference numerals are also provided in the middle. The individual components of the clamping closure device 1 can be seen more clearly in the disassembled position. It is particularly clear how the two fixing elements 5A, 5B can be connected with the two components 3A, 3B: In the two components 3A, 3B there are cutouts 13A, 13B, which are preferably shaped approximately rectangularly (the width can lie, for example, in the range between 10 mm and 15 mm and the length can lie, for example, in the range between 15 mm and 25 mm). The two fixing elements 5A, 5B have a connection mechanism, which can be formed, for example, as a closure hook 6A, 6B and a fitting bracket 7A, 7B with a spring element 8A, 8B. The closure hook 6A, 6B is first introduced into the cutout 13A, 13B, so that the closure hook 6A, 6B hooks over the edge of the cutout 13A, 13B from the rear side of the two components 3A, 3B, thereby producing a connection. Then, the fitting bracket 7A, 7B is introduced into the cutout 13A, 13B, wherein the spring element 8A, 8B arranged on the fitting bracket 7A, 7B elastically deforms in the direction of the closure hook 6A, 6B when passing through the cutout 13A, 13B due to its elasticity and springs back after passing through, i.e. in the installed position, and hooks over the edge of the cutout 13A, 13B from the rear side of the two components 3A, 3B. In this way, the fixing elements 5A, 5B are fixed in their position on respectively two opposite sides of the cutout 13A, 13B, wherein the fixing on one side takes place by means of the closure hook 6A, 6B and wherein the fixing on the other (opposite) side takes place by means of the fitting bracket 7A, 7B and its spring element 8A, 8B. Alternatively, the closure hook 6A, 6B can be replaced by the fitting bracket 7A, 7B and the spring element 8A, 8B arranged thereon, respectively, so that each fixing element 5A, 5B can comprise two fitting brackets 7A,

[0031] 7B and two clamping hooks 8A, 8B.

[0032] Reference numeral explanation

[0033] 1: clamping closure device

[0034] 2: clamping lever

[0035] 3A, 3B: component

[0036] 4: gripping element

[0037] 5A, 5B: fixing element

[0038] 6A, 6B: closure hook

[0039] 7A, 7B: fitting bracket

[0040] 8A, 8B: spring element

[0041] 9: joint rocker

[0042] 9', 9": end (of the jointed rocker 9)

[0043] 10, 10', 10": receiving portion

[0044] 11: protrusion

[0045] 12: recess

[0046] 13A, 13B: cutout

[0047] α1, α2: clamping lever angle

[0048] d: thickness (of the members 3A, 3B)

[0049] K: circular track

[0050] L2: longitudinal axis (of the clamping lever 2)

[0051] L9: longitudinal axis (of the jointed rocker 9)

[0052] M: center point (of the circular track K)

Claims

1. A clamping closure device (1) for toollessly mounting on two components (3A, 3B) to be connected to one another, comprising: a first fixing element (5A) for connecting the clamping closure device (1) to a first component (3A), a second fixing element (5B) for connecting the clamping closure device (1) to a second component (3B), and a clamping lever (2) for manipulating the clamping closure device (1), wherein the clamping lever (2) is movably connected to at least one of the two fixing elements (5A, 5B), wherein the first fixing element (5A) and / or the second fixing element (5B) has at least one connection mechanism (6A, 6B, 7A, 7B, 8A, 8B) for producing a toollessly mountable connection with a cutout (13A, 13B) provided in the component (3A, 3B), wherein at least one connection mechanism is configured as a closure hook (6A, 6B), and wherein at least one connection mechanism is configured as a fitting bracket (7A, 7B) with a spring element (8A, 8B), characterized in that each fixing element (5A, 5B) has the closure hook (6A, 6B) and the fitting bracket (7A, 7B) with the spring element (8A, 8B), and the closure hook (6A, 6B) and the fitting bracket (7A, 7B) with the spring element (8A, 8B) are arranged on opposite sides and in opposite directions, so that the fixing element (5A, 5B) is fixed in its position on respectively two opposite sides of the cutout (13A, 13B). The connection is a form-fit connection. A joint rocker (9) is rotatably connected with its first end (9') to the clamping lever (2) and with its second end (9") to one of the two fixing elements (5A, 5B). The clamping lever (2) and / or one of the two fixing elements (5A, 5B) has a receptacle (10', 10") for rotatably bearing one of the ends (9', 9") of the joint rocker (9). The clamping lever (2) has a protrusion (11) and one of the two components (3B) has a recess (12), so that the protrusion (11) can be inserted into the recess (12) in order to produce a releasable connection. The clamping lever (2) has at least one gripping element (4). The clamping closure device (1) is made of plastic and / or metal.

2. The clamping closure device (1) according to claim 1, characterized in that the clamping lever (2) is connected to both fixing elements (5A, 5B) and the clamping lever (2) is rotatably connected to both fixing elements (5A, 5B) with its first end (2') and with its second end (2").

3. The clamping closure device (1) according to claim 1 or 2, characterized in that the clamping lever (2) has a protrusion (11) and one of the two components (3B) has a recess (12), so that the protrusion (11) can be inserted into the recess (12) in order to produce a releasable connection.

4. The clamping closure device (1) according to any one of claims 1 to 3, characterized in that the clamping lever (2) has at least one gripping element (4).

5. The clamping closure device (1) according to any one of claims 1 to 4, characterized in that the clamping closure device (1) is made of plastic and / or metal.

6. The clamping closure device (1) according to any one of claims 1 to 5, characterized in that the closure hook (6A, 6B) is configured as a hook with a spring element (8A, 8B).

7. The clamping closure device (1) according to any one of claims 1 to 6, characterized in that the fitting bracket (7A, 7B) is configured as a hook with a spring element (8A, 8B).

8. A system for toollessly mounting a clamping closure device (1) on two components (3A, 3B) to be connected to one another, comprising: a clamping closure device (1) according to any one of claims 1 to 7, and two components (3A, 3B) to be connected to one another, characterized in that the two components (3A, 3B) each have one cutout (13A, 13B). The two components (3A, 3B) are made of sheet metal and the cutouts (13A, 13B) are rectangular. ​ ​ ​ ​ ​ ​ ​ ​ 2. Clamping closure device (1) according to claim 1, characterized in that ​ 3. Clamping closure device (1) according to claim 1, characterized in that ​ 4. Clamping closure device (1) according to claim 3, characterized in that ​ 5. Clamping closure device (1) according to any one of claims 1 to 4, characterized in that ​ 6. Clamping closure device (1) according to any one of claims 1 to 4, characterized in that ​ 7. The clamp lock device (1) according to any one of claims 1 to 4, characterized in that ​ ​ ​ ​ ​ 9. The system of claim 8, wherein, ​

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