The invention relates to a connecting element for fastening a sink to a worktop, which worktop has a cutout for inserting the sink, which cutout has a peripheral boundary face.
Furthermore, the invention relates to a combination of a sink with at least one connecting element according to the invention arranged on the sink.
In order to install sinks, in particular kitchen sinks, made of a molded material, in particular a mineral molded material (a plastic molded material or combinations thereof) it is known to provide the sink with a slot laterally in the region of reinforcement structures which project from its underside, into which slot a screw securing claw engages with a suitable anchoring projection. Then, by means of a screw which has to be acted on from underneath the worktop, a clamp part is moved from below into abutment against the worktop, in order to secure the sink on the worktop. A disadvantage with such a solution is that it can be used only for a limited range of worktop thicknesses, because the specified clamp part has to interact with the worktop from below. Furthermore, the use of a screw which has to be tightened from underneath the worktop entails increased expenditure on mounting.
The invention is based on the object of specifying a connecting element for fastening a sink to a worktop, which connecting element can be used for, as it were, any worktop thicknesses and requires only reduced expenditure on mounting. The connecting element to be provided is to be advantageously suitable for use with (kitchen) sinks which are produced from a plastic molded material, a mineral molded material or a corresponding composite material.
The object of the present invention is also to specify a combination of a sink and such a connecting element.
This object is achieved according to the invention by a connecting element for fastening a sink to a worktop having one or more of the features described herein, and by a combination of a sink and a connecting element which is arranged on the sink.
Advantageous developments of the inventive concept are described below and in the claims.
According to the invention, a connecting element for fastening a sink to a worktop, which worktop has a cutout for inserting the sink, which cutout has a peripheral boundary face, has the following features: a base body which serves as a bearing part for bearing against the sink; at least one spring part which projects from the base body on a first side and which is designed to bring about a spring force which acts away from the base body, when there is loading in the direction of the base body; and at least one anchoring part which projects from the base body on a second side thereof lying opposite the first side and which is designed to engage in a slot-shaped recess in the sink; wherein an engagement direction of the anchoring part (in the specified recess) extends essentially approximately antiparallel with respect to a direction of the spring force.
A combination according to the invention of a sink and at least one connecting element which is arranged on the sink is distinguished by the fact that the connecting element is embodied as a connecting element according to the invention.
According to the invention there is provision that instead of the previously known screw elements a connecting element is used which can ensure particularly frictionally locking fastening of the sink to a worktop due to a spring force which is conveyed by the spring part. The securing of the connecting element itself to the sink is carried out by the anchoring part which is designed to engage in a slot-shaped recess in the sink. In this context, there is also provision that an engagement direction of the anchoring part (in the slot-shaped recess in the sink) extends essentially approximately antiparallel with respect to a direction of the spring force, so that when the sink is fastened to the worktop using the connecting element, it is at the same time ensured that the connecting element is reliably secured to the sink.
Wherever it is stated here and below that the engagement direction of the anchoring part is intended to extend “essentially” approximately antiparallel with respect to a direction of the spring force, this includes configurations in which an angle between the engagement direction and the direction of the spring force is at least approximately 135° or 225° and preferably at least approximately 150° or 210°. It is therefore not necessary for the engagement direction and spring force direction to be oriented actually precisely antiparallel. Reference is also made to this in more detail below.
Another development of the connecting element according to the invention provides that the spring part is embodied as a tongue which projects from the base body in an edge region of the base body and which has a first extent section adjoining the edge region and a second extent section adjoining the first extent section, wherein the tongue in the first extent section extends approximately perpendicularly with respect to the base body, and in the second extent section extends approximately parallel to or at an acute angle of less than 45 degrees, preferably less than 30 degrees, with respect to the base body.
In this way it is possible to bend back the spring part tongue in the region of the second extent section in the direction of the base body, as a result of which the spring force (restoring force) which has already been mentioned is produced. By adapting or changing the specified angle it is possible, in particular, to compensate tolerances during the production of the worktop cutout.
In order to improve further the fastening effect of the connecting element, it has proven advantageous if the spring part also has a further, third extent section which adjoins the second extent section and in which the spring part is angled to a greater extent from the base body than in the second extent section.
In order to improve the securing effect even further, in one development of the connecting element according to the invention there can be provision that the spring part is widened in the third extent section at least in certain areas with respect to the second extent section.
Moreover, according to another development of the connecting element according to the invention, the spring part can also have a widened portion at least in certain areas in the second extent section. As a result, in particular the stability of the spring part itself can be increased.
According to yet another development of the connecting element according to the invention there can be provision that said connecting element has a multiplicity of spring parts which preferably differ with respect to the angle between the base body and the sum in the second extent section and/or with respect to a length of the third extent section. Additionally, as a result, tolerances, in particular of the worktop cutout, can be effectively compensated and the fastening effect improved.
With respect to the anchoring part it is possible to provide, according to another development of the connecting element according to the invention that said anchoring part is embodied as a tongue which projects from the base body in an edge region of the base body and which has a first extent section which adjoins the edge region, and a second extent section which adjoins the first extent section, wherein the tongue in the first extent section extends away from the base body, approximately perpendicularly with respect thereto, and in the second extent section extends back again to the base body.
In this way, effective securing of the connecting element in the slot-shaped recess in the sink can be achieved, wherein the securing effect can also be improved by virtue of the fact that an effective width of the anchoring part is at least slightly larger in the region of the first and second extent sections than a corresponding width of the slot-shaped recess. Due to the bending back of the anchoring part in the region of the second extent section said anchoring part is made flexible in the specified region and therefore when it is introduced into the slot-shaped recess in the sink it can correspondingly deform (elastically).
The securing effect can also be improved by virtue of the fact that according to another development of the connecting element according to the invention the anchoring part tongue has at its free edge positioned at the end an incision or a notch. In this way, points on the anchoring part tongue which can dig into the material of the sink are produced in the region of the abovementioned free edge positioned at the end. It is therefore not readily possible to remove an inserted connecting element again without damage.
According to one particularly preferred development of the connecting element according to the invention there can be provision that it has a multiplicity of anchoring parts which preferably differ with respect to an angle between the first extent section and the second extent section and/or with respect to a dimension of the first extent section. This improves the anchoring effect.
It has proven advantageous if the connecting element according to one corresponding development of the invention is produced as a punched-bent part or a laser cut part from a metallic material, preferably steel, most preferably stainless steel. In this way, the connecting element has the necessary stability and stability in use, in particular in a possibly damp environment.
According to another development of the connecting element according to the invention there can also be provision that the latter has at least one clip which projects over the rest of the base body, preferably in the width direction, on the base body, preferably positioned at the end. This clip/these clips can be useful for the production of the connecting element and can serve, for example, to secure the connecting element during production.
Furthermore, according to another configuration of the connecting element according to the invention there can be provision that at least one breakthrough is provided in the base body, preferably in the region of the abovementioned clip. This breakthrough can serve for centering the connecting element during its production and for conveying it on.
The specified clips are generally not relevant for the fastening of the connecting element to the sink but they can be useful during mounting.
In one development of the combination according to the invention there can be provision that the sink has, on its mounting underside, at least one anchoring and bearing structure positioned on the edge and having a bearing face which extends at an angle of approximately 90 degrees with respect to a bearing edge of the sink, and having a slot-shaped recess in the bearing face, which recess extends parallel to the bearing edge and is designed and provided for receiving the anchoring part. In the region of the abovementioned bearing edge, in the mounted state the sink is located on top of the worktop. The specified anchoring and bearing structure is then located in the region of the cutout in the worktop, adjacent to the boundary face thereof.
The abovementioned angle is not limited to values of precisely 90° but rather can deviate therefrom in a certain tolerance range. For example, such a deviation of approximately 5°, approximately 10° or approximately 15° has proven expedient. The anchoring and bearing structure then has a frustrum-shaped configuration in cross section, which, in particular, when the sink is produced from a molded material, can facilitate the removal from the mold.
In yet another development of the combination according to the invention there can be provision that the connecting element bears with the base body against the bearing face when the anchoring part is received in the recess, wherein the spring part projects outward away from the sink. Correspondingly, an angle between the base body and anchoring part should therefore be adapted to the abovementioned angle in the region of the bearing face of the anchoring and bearing structure. In this way, the connecting element can be effectively supported over a surface on the anchoring and bearing structure and therefore exert its fastening effect to an optimum extent.
It has already been pointed out that according to one preferred development of the combination according to the invention the anchoring and bearing structure can be embodied in the form of a frustrum in cross section.
Additionally or alternatively, in another development of the combination according to the invention there can be provision that an anchoring and bearing structure is provided on both long sides and/or short sides of the sink. It has proven to be particularly advantageous to provide corresponding anchoring and bearing structures only on the two long sides of the sink. However, it lies within the scope of the invention to provide a corresponding anchoring and bearing structure on at least one of the two short sides of the sink, preferably on a side of the sink facing away from a sink basin.
It has also already been pointed out that within the scope of a corresponding configuration of the combination according to the invention, the sink, preferably the sink including the anchoring and bearing structure, which can be embodied in one piece with the sink, can be produced from a plastic molded material, a mineral molded material or a corresponding composite material. Such sinks are esthetically attractive and particularly durable in terms of their fatigue strength and stability.
Finally, in one development of the combination according to the invention there can also be provision that this combination additionally also comprises a worktop, which worktop has a cutout for inserting the sink, which cutout has a peripheral boundary face, with which boundary face the connecting element interacts with the spring part in order to attach the sink. The specific configuration of the anchoring elements serves to securely fasten the connecting element in the slot-shaped recess in the sink. Due to the described configuration, the connecting element can be easily inserted into the specified slot, e.g. by pushing it in laterally, but cannot be readily removed again therefrom. Removing the connecting element (violently) from the slot using a tool would damage the connecting element and therefore make it unusable.
Further properties and advantages of the invention emerge from the following description of exemplary embodiments with reference to the drawing, in which:
On the base body 2, the connecting element according to
As is clearly apparent from
A corresponding configuration is shown in
Each spring part 3.1-3.8 is embodied as a tongue projecting from the base body 2 in an edge region of the base body 2. Each of these tongues firstly has a first extent section 3.8a, which is adjoined by a second extent section which is referred to by the reference symbol 3.8b in
With reference to
In
It is important with the connecting elements 1 described above in conjunction with
The situation according to which the engagement direction E of the anchoring parts 4.1-4.6 extends essentially approximately antiparallel with respect to a direction of the spring force is also illustrated schematically in
Number | Date | Country | Kind |
---|---|---|---|
10 2018 119 845.0 | Aug 2018 | DE | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/EP2019/068785 | 7/12/2019 | WO | 00 |