Nut for fastening component to carrier

Abstract

The invention relates to a nut for fastening a component to a carrier, in particular a sanitary fitting to a workbench, comprising a first nut part and a second nut part, the first nut part having at least two threaded connection sections, the threaded connection sections having a thread on the radially inner side thereof, the second nut part having a thread on the radially inner side thereof, the two nut parts are arranged to be movable relative to each other along an axial axis such that, in a first position, an open position, the threaded connection section of the first nut part can be arranged to project radially outward, and, in a second position, a closed position, the threaded connection section of the second nut part can be arranged to project radially outward. The threaded connection section of the first nut part can be arranged, in particular radially inward, by means of the second nut part for engaging into a corresponding external thread of the component, and the first nut part and the second nut part are designed to be freely rotatable relative to each other about an axial axis.

Description

Field of the Invention

[0001] The present invention relates to a nut for fixing a component to a carrier, in particular for fixing a sanitary fitting to a workbench, which comprises a first nut part and a second nut part. The first nut part has at least two threaded connection sections which have threads on their radial inner sides. The two nut parts are arranged movably relative to each other along an axial axis such that in a first position, i.e., an open position, the threaded connection sections of the first nut part can be set to project radially outwards, and in a second position, i.e., a closed position, the threaded connection sections of the first nut part can be arranged, in particular, to project radially inwards by means of the second nut part so as to engage into corresponding external threads of the component.

[0002] The present invention also relates to a system for fixing a component to a carrier, the system comprising a nut.

[0003] The present invention also relates to a method for fixing a component to a carrier.

[0004] The present invention also relates to a method for loosening a component fixed to a carrier. Background Art

[0005] Although applicable to any component, the present invention is introduced with respect to a component in the form of a sanitary fitting.

[0006] Although applicable to any carrier, the present invention is introduced with respect to a carrier in the form of a workbench.

[0007] Sanitary fittings are known in various ways. These sanitary fittings are usually fixed to a workbench in such a way that the sanitary fitting extends partially through a fastening opening in the workbench with a corresponding fitting rod. For fixing the sanitary fitting, the fitting rod has an external thread onto which a nut is screwed.

[0008] The problem here is that the fitting rod is usually very long so that it can be used for workbenches of different thicknesses. When installing a sanitary fitting on a thin workbench, connecting the nut to the external thread of the threaded shaft until the final fixed position is complex and time-consuming.

[0009] A nut for fixing a component to a carrier, in particular for fixing a sanitary fitting to a workbench, is known from DE102021212266A1. The nut includes a first nut part and a second nut part. The first nut part has at least two threaded connection sections with threads on the radially inner side. The threaded connection sections are arranged to protrude radially outwards at a first angle. The two nut parts are arranged to be axially movable relative to each other such that in a first position, i.e., the open position, the threaded connection sections of the first nut part are arranged to protrude radially outwards, and in a second position, i.e., the closed position, the threaded connection sections of the first nut part are radially inwardly pressed by the second nut in order to engage with the external thread of the corresponding component.

[0010] However, the disadvantage here is that additional stabilizing components are required for assembling the sanitary fitting, for example, for assembling on a workbench. Additionally, high precision requirements are placed on the nut during production to prevent the fastening connection sections from being in positions unsuitable for fixing. This means relatively high production costs. Summary of the Invention

[0011] Therefore, an object of the present invention is to provide a nut for fixing a component to a carrier and a system for fixing a component to a carrier, which are simple and inexpensive to produce, can simply and quickly fix and release the component, and require as few additional components as possible.

[0012] Another object of the present invention is to provide an alternative nut for fixing a component to a carrier and an alternative system for fixing a component to a carrier.

[0013] Another object of the present invention is to provide a method for fixing a component to a carrier and a method for releasing a component fixed to a carrier, which can be simply, quickly, and reliably performed while reducing the operation space required for assembly for the assembler.

[0014] Another object of the present invention is to provide an alternative method for fixing a component to a carrier and an alternative method for releasing a component fixed to a carrier.

[0015] In one embodiment, the present invention achieves the above object by a nut for fixing a component to a carrier, in particular for fixing a sanitary fitting to a workbench, the nut comprising:

[0016] A first nut part, and

[0017] A second nut part, wherein,

[0018] The first nut component has at least two threaded connection segments which have threads on their radial inner sides, wherein the two nut components are movable relative to one another along an axial axis such that in a first position, i.e., an open position, the threaded connection segments of the first nut component can be arranged to protrude radially outwards, and in a second position, i.e., a closed position, the threaded connection segments of the first nut component can be arranged, in particular protruding radially inwards by means of the second nut component, for engagement into a corresponding external thread of a component, whereby the first nut component and the second nut component are designed to be rotatable freely relative to one another about the axial axis.

[0019] In another embodiment, the present invention achieves the above object by a system for fixing a component to a carrier, comprising:

[0020] A nut according to any one of claims 1 to 19, wherein the component has an external thread corresponding to the thread of the nut such that the nut can be screwed onto the external thread in its closed position and, in its open position, the thread can provide at least one region where the inner diameter is greater than the outer diameter of the external thread.

[0021] In another embodiment, the present invention achieves the above object by a method for fixing a component to a carrier, the method comprising the following steps:

[0022] Providing a nut according to any one of claims 1 to 19 in an open position,

[0023] Providing the component, wherein the component has an external thread corresponding to the thread of the nut such that the nut can be screwed onto the external thread in its closed position,

[0024] Arranging the component on the carrier,

[0025] Moving the nut in its open position through the external thread of the component until the nut abuts against the carrier with its second nut component,

[0026] Operating the first nut component until the nut is in its closed position to engage the thread into the external thread of the component, and

[0027] Driving the thread of the nut by rotating the nut to fix the component to the carrier.

[0028] In another embodiment, the present invention achieves the above object by a method for loosening a component fixed to a carrier, the method comprising the following steps:

[0029] Provided on the component is the nut according to any one of claims 1 to 19 in its closed position, wherein the component has an external thread corresponding to the thread of the nut, and the thread of the nut engages into the external thread of the component.

[0030] The thread of the nut is operated by rotating the nut to loosen the component from the carrier until the nut is in the open position, and

[0031] The nut is released and moved through the external thread of the component to the open position, thereby loosening the component from the carrier.

[0032] One of the advantages achieved thereby is that the simplified assembly of the component on the carrier is realized by means of the nut. Another advantage is that during the assembly process, the nut is forced from its open position into the closed position substantially in a self-locking manner, so that rapid assembly can be achieved with only a few steps. Another advantage is that the production of the two nut parts is simple and cost-effective, for example made of plastic, preferably by injection molding. Since the two nut parts can rotate freely relative to each other, for example, a stabilizing element can be directly arranged on or connected to the nut, which reduces additional components. In addition, for example, when the stabilizing element is mounted on a workbench or the like, the stabilizing element can be freely oriented.

[0033] The term "free rotation" related to the two nut parts should be understood in the broadest sense, and especially in the claims, preferably in the specification, it means: the possibility of relative rotation that is independent of the direction of rotation, especially in the open position, when changing from the open position to the closed position or from the closed position to the open position and / or in the closed position, and is unrestricted in at least one direction of rotation of the two nut parts. Here, in particular, the objective possibility of free rotation is crucial, regardless of any forces that need to be overcome for relative rotation, such as frictional forces, etc.

[0034] The feature "can be arranged radially outward" regarding the feature "threaded connection section" should be understood in the broadest sense, and especially in the claims, preferably in the specification, it means the possibility of moving outward, without necessarily moving the threaded connection section outward when operating the two nut parts. The threaded connection section is preferably arranged parallel to the axial direction and / or radially inward relative to the nut part.

[0035] Other features, advantages and other embodiments of the present invention will be introduced below or will become obvious therefrom.

[0036] According to an advantageous refinement of the invention, the first nut part and the second nut part can be fixed to each other by a fixing device which is designed in particular to be releasable. The advantage is that the two nut parts can be fixed to each other flexibly and simply, for example to provide a limited axial movement capability. The nut parts can be releasably connected to each other.

[0037] According to a further advantageous refinement of the invention, the fixing device comprises a latching device, a clamping device or a snap-fastening device. The advantage is that the two nut parts can be fixed to each other easily and quickly.

[0038] According to another advantageous refinement of the invention, the fixing device has at least one chute, and at least one chute element engages into the at least one chute, in particular where at least one chute is arranged in the second nut part and the chute element is arranged on the first nut part. This provides a simple and at the same time reliable guidance for the two nut parts. The term "chute" should be understood in the broadest sense and, in particular in the claims and preferably in the description, refers to recesses, openings, protrusions, retractions etc. which impose at least a partial restriction on the mobility of an object in the chute.

[0039] According to another advantageous refinement of the invention, the fixing device comprises surfaces on the first nut part and the second nut part which are slidable relative to each other and inclined at an angle relative to the axial direction, in particular where the angle is inclined relative to the axial direction by at least 5 degrees, in particular at least 10 degrees, preferably at least 15 degrees, in particular at least 30 degrees. This provides a sufficiently large pressing force of the threaded connection section on the external thread in the closed position without significantly increasing the installation space of the nut.

[0040] According to a further advantageous refinement of the invention, a reset device is arranged which is designed to exert a reset force in the direction of the open position. This ensures that the nut can be easily removed, for example when a component needs to be replaced for maintenance purposes. If the nut is operated accordingly, the nut "automatically" moves into its open position so that it can be quickly and easily removed, for example from a sanitary fitting rod.

[0041] According to another advantageous refinement of the invention, the reset device comprises a spring device having at least one spring element, which spring device is arranged between the first nut part and the second nut part. The advantage is that the reset force is provided simply and reliably.

[0042] According to another advantageous refinement of the invention, at least one retaining element, in particular a plurality of retaining elements, is arranged on the second nut part, where at least one spring element can be arranged in a supported manner on the at least one retaining element. The advantage is that the spring element reliably provides the reset force.

[0043] According to a further advantageous refinement of the invention, the retaining element is designed in the form of an edge of the second nut part. The advantage is that there is no need to form a separate retaining element.

[0044] According to another advantageous refinement of the invention, at least one spring element is designed in the form of a disc spring, which is arranged between the first nut part and the second nut part in a detachable manner, or the at least one spring element is designed in the form of at least two, in particular symmetrically arranged, projections on the first and / or second nut part, which project in the direction of the other nut part. The advantage of a spring, in particular a spring made of metal, preferably a disc spring, is that it reliably provides spring force. The advantage of elastic and / or resilient projections, which are arranged, for example, in an arcuate manner on the continuous circumferential surface of the first nut part, is the low-cost manufacture, since these projections can, for example, be directly molded onto the first nut part or manufactured integrally therewith.

[0045] According to a further advantageous refinement of the invention, the reset device and the fixing device are designed in such a way that the reset device and the fixing device cooperate to provide an open position. This can reduce the total number of components and thus lower the production costs.

[0046] According to a further advantageous refinement of the invention, the threaded connection section is arranged parallel to the axial direction in its unloaded state. This enables the threaded connection section to be easily manufactured while maintaining high tolerances during production, and the threaded connection section can still engage with the external thread.

[0047] According to a further advantageous refinement of the invention, the number of threaded connection sections is less than 30, preferably less than 15, in particular less than 8, preferably 4 and more than 2. Thereby, a sufficient number of threaded connection sections is provided, while reliable engagement is achieved in the closed position.

[0048] According to a further advantageous refinement of the invention, an opening retaining device is arranged to provide an open position. This enables particularly easy assembly.

[0049] According to another advantageous refinement of the invention, the opening retaining device has at least one elongate element, which is held in or on at least one opening, in particular in a form-locking or friction-locking manner, and engages in at least one opening during the transition from the open position to the closed position. In particular, the at least one elongate element and the at least one opening are arranged on the first nut part. The advantage is that the nut is easy to operate during the assembly process. The form-locking arrangement of the elongate element can be achieved, for example, in the opening by means of one or more narrow crosspieces serving as predetermined breaking points in the opening, which hold the elongate element in or on it and break when a force is applied, i.e., when the two nut parts are pushed together, so that the elongate element is then pressed or pushed into the opening.

[0050] According to a further advantageous refinement of the invention, the first nut part is partially arranged in the second nut part and the first nut part is at least partially arranged radially outside the second nut part, or vice versa, the second nut part is partially arranged in the first nut part and the second nut part is at least partially arranged radially outside the first nut part. The advantage is the defined arrangement and defined guidance of the two nut parts together, which simplifies the handling of the nut, especially during assembly.

[0051] According to a further advantageous refinement of the invention, the second nut part has a abutment means on the axial side facing away from the first nut part for abutting the nut against a component. This enables the reliable fixing of the component on the carrier by means of the nut.

[0052] According to a further advantageous refinement of the invention, the abutment means comprises in particular a flat component with a triangular design. The advantage is reliable fixing, while the abutment means requires little material and the abutment means can align the component on the carrier by means of the nut.

[0053] According to a further advantageous refinement of the invention, the abutment means has at least one, in particular a plurality of, material weakening parts, in particular slits, for separation. The advantage is good adaptability of the nut by the fitter on site. The fitter can easily adapt the abutment means to the position conditions on site.

[0054] Other important features and advantages of the invention result from the dependent claims, the drawings and the associated description based on the drawings.

[0055] Of course, without departing from the scope of the invention, the above features and the features to be explained below can be used not only in the form of the respectively specified combinations, but also in other combinations or individually. Description of the Drawings

[0056] Preferred designs and embodiments of the invention are shown in the drawings and are explained in more detail in the following description, where the same reference numerals denote identical or similar or functionally identical components or elements.

[0057] Here:

[0058] Figure 1 A system with a nut according to an embodiment of the invention is shown in cross-section in the open position;

[0059] Figure 2 A system with a nut according to an embodiment of the invention is shown in cross-section in the open position;

[0060] Figure 3 Shows in the closed position according toFigure 2 system;

[0061] Figure 4 Three-dimensional top view of a nut showing an embodiment of the present invention;

[0062] Figure 5 Steps of a method according to an embodiment of the present invention are shown in a schematic form; and

[0063] Figure 6 Steps of a method according to an embodiment of the present invention are shown in a schematic form. Detailed description of the invention

[0064] Figure 1 A system having a nut according to an embodiment of the present invention is shown in cross-section in an open position.

[0065] Figure 1 System 100 is shown having a nut 1 in its open position 201. Here, nut 1 includes a first nut part 2 and a second nut part 3. The two nut parts 2, 3 are arranged circularly in cross-section along the axial direction 101. In Figure 1 the illustration, for illustration purposes, the substantially cylindrical nut 1 is shown wider on the right side in the axial direction than on the left side in the axial direction.

[0066] The first nut part 2 also has a threaded connection section 4 which is arranged parallel to the axial direction 101 in the open position 201 and is arranged radially unloaded in the open position. The starting region 4a of the threaded connection section 4 is arranged substantially directly on or parallel to the face of the first nut part 2, and the ending region 4b is arranged in the same way, wherein in the ending region 4b two sliding surfaces 25, 26 are arranged on its radial outer side, and the two sliding surfaces are inclined radially outwards (radial direction 102) at an angle 92 with respect to the axial direction 101. These sliding surfaces 25, 26 which substantially form a parallelogram in cross-section in the ending region 4b are joined to the chute 6 or recess of the second nut part 3 by means of a connecting member 30, and the chute 6 or recess is also substantially trapezoidal in cross-section, especially designed to be parallelogram-shaped, and enables axially limited axial mobility along the two sliding surfaces 25, 26 and radially limited outward radial mobility of the ending region 4b. Therefore, the ending region 4b having the mentioned sliding surfaces 25, 26 serves as a chute element 7. For this purpose, the chute 6 has an upper sliding surface 20 and a lower sliding surface 21, wherein the upper sliding surface 20 along the axial direction 101 corresponds to the sliding surface 25 of the chute element 7, and the lower sliding surface 21 along the axial direction corresponds to the sliding surface 26 of the chute element 7.

[0067] Similar to the first nut part 2, the second nut part 3 is basically designed as a hollow cylinder, wherein the inner diameter of the second nut part 3 is designed such that the second nut part 3 can be arranged on the first nut part 2 or the first nut part 2 can be at least partially arranged inside the second nut part 3. The second nut part 3 has a circumferential protrusion 3a extending radially inwards on its upper edge, and this protrusion serves as a stop for the first nut part 2 and its upper edge surface 2a. In addition, the circumferential protrusion 3a also serves as an insertion aid during assembly and protects the first nut part 2 during assembly, so that the thread 5 does not damage the first nut part 2.

[0068] If the first nut part 2 is now further pushed axially in the axial direction 101 from the open position 201 into the second nut part 3, in other words, if the upper edge surface 2a moves towards the protrusion 3a in the fixed direction 103, then the sliding surface 26 no longer abuts against the sliding surface 21, but due to the axial movement, the sliding surfaces 20, 25 now press against each other. This causes the end region 4b to be pressed radially inwards towards the member 50 having the external thread 50a arranged in the first nut part 2, so that the thread 5 of the threaded connection section 4 can engage with the external thread 50a of the member 50 arranged in the first nut part 2. Then, by rotating the first nut part 2, the nut 1 can be fixed to the member 50. The member 50 itself projects through the workbench 51 or the corresponding opening 51a in the sanitary sink in the kitchen.

[0069] In addition, a stabilizing triangle 52 is arranged in the upper region of the second nut part 3. Similarly, an annular seal 53 can be arranged in the upper region of the second nut part 3, and this annular seal is arranged in such a way as to be supported in a notch or protrusion 56 in the upper region of the second nut part 3.

[0070] In order to be able to loosen the nut 1 more easily, one or more spring elements 9 of a spring device 8 are arranged between the first nut part 2 and the second nut part 3, and the spring elements provide a restoring force and press the first nut part 2 towards the open position 201. Although the nut 1 can be loosened even without the spring element 9, the spring element 9 enables the open position of the nut 1 to be automatically obtained and to reach the open position 201 after turning one or more turns, so that the nut 1 can then be loosened and removed without further turning.

[0071] As an alternative or supplement to the spring element, on the first nut part 2, a pin 11 projecting axially upward in the axial direction 101 can be arranged in the radially outer region, and this pin can engage into a corresponding opening 10 in the first nut part 2. Here, the pin 11 can be held in the opening 10 by means of one or more webs, such that on the one hand, free rotation of the two nut parts 2, 3 relative to one another is ensured, while at the same time ensuring the spacing of the two nut parts 2, 3 in the open position 201, and on the other hand, then when the fixing nut 1 is fixed, regardless of the circumferential position of the two nut parts 2, 3 relative to one another, the pin 11 is pressed into the opening 10 by breaking the web.

[0072] Here, the thread 5 of the threaded connection section 4 can be removed in the region adjacent to the starting region 4a, that is, one or more thread turns are shortened, so as to achieve as small an overlap as possible with the external thread 50a of the component 50, which makes it easier to push the nut 1 onto the corresponding external thread 50a of the component 50.

[0073] Alternatively or additionally, instead of being arranged in the position above the first nut part 2, a spring device 8 having a spring element 9' can also be arranged in the lower region of the first nut part 2 or in the transition region 40 between the first nut part 2 and the second nut part 3. The spring element 9' is arranged on the first nut part 2 and abuts against the lower region of the second nut part 3. Overall, the spring element is then axially upwardly pressed relative to the first nut part 2. The advantage of this arrangement is that, compared with the arrangement of the spring device 8 having the spring element 9, the overall vertical extension along the axial direction 101 can be reduced. In contrast, Figure 1 The shown arrangement has the advantage that the width of the nut 1 can be reduced, that is, the diameter perpendicular to the axial direction 101 can be reduced.

[0074] Both the spring element 9 and / or the spring element 9' can be designed as additional components, in particular in the form of a disc spring. The corresponding spring elements 9, 9' can then be designed such that they are held or inserted on the first nut part 2 in a form-locking manner.

[0075] Figure 2 The system with a nut according to an embodiment of the present invention is shown in cross-section in the open position, Figure 3 showing the system according to Figure 2 in the closed position.

[0076] In Figure 2 the nut 1 according to Figure 1 is shown in the open position 201, and in Figure 3 the nut 1 according to Figure 1 is shown in the closed position 202. Basically, according to Figure 2 and Figure 3The nut 1 corresponding to Figure 1 is the nut 1.

[0077] In the closed position 202, the upper edge surface 2a (see Figure 1 ) is directly located on the protrusion 3a (see Figure 1 ), and the threaded connection section 4 is pressed inward or radially fixed in its position parallel to the axial direction 101. In other words, due to the sliding abutment of the sliding surfaces 20, 25 (see Figure 1 ) of the first nut member 2 and the second nut member 3, the threaded connection section 4 cannot be pressed radially outward together. As in the previous figures, the member 50 passes through the opening 51a and is connected to the base body 55 of the fitting on the upper side of the workbench 51 and the like by means of a threaded connection to fix it.

[0078] Figure 4 A three-dimensional top view of the nut according to an embodiment of the present invention is shown.

[0079] Figure 4 A three-dimensional top view of the second nut member 3 is shown. In the upper region, two triangular flat protrusions 13 extending perpendicular to the axial direction 101 are arranged, and the protrusions respectively have recesses 14. These recesses 14 can be cut through, for example, using a cutting tool, and the protrusions 13 can thus be adapted to the position conditions.

[0080] Generally, the two protrusions 13 and the upper second nut member 3 together form a stable triangle, which, for example, abuts against the workbench flush with the surface from below and prevents the sanitary fitting fixed on the workbench from tilting.

[0081] In order to support one or more spring elements 9 of the spring device 8, the spring device 8 is arranged between the two nut members 2, 3 and pushes the two nut members away from each other in the axial direction 101 by means of a pre-tightening force. In the upper region of the second nut member 3, hook-shaped or L-shaped protrusions 12 extending circumferentially, radially inward, and downward are provided. The spring elements 9, for example in the form of disc springs, can be supported on these protrusions 12.

[0082] Figure 5 The steps of the method according to an embodiment of the present invention are shown in a schematic form.

[0083] Figure 5 The steps of the method of fixing a member to a carrier are shown.

[0084] The method includes the following steps:

[0085] Providing the nut 1 according to any one of claims 1 to 19 in the open position 201,

[0086] Provide the S2 component 50, wherein the component 50 has an external thread 50a corresponding to the thread 5 of the nut 1, such that the nut 1 can be screwed onto the external thread 50a in its closed position 202.

[0087] Arrange the S3 component 50 on the carrier 51.

[0088] Push the S4 nut 1 in its open position 201 through the external thread 50a of the component 50 until the nut 1 abuts against the carrier 51 with its second nut part 3.

[0089] Operate the S5 first nut part 2 until the nut 1 is in its closed position 202 to engage the thread 5 into the external thread 50a of the component 50, and

[0090] Operate the S6 thread 5 of the nut 1 by rotating the nut 1 to fix the component 50 on the carrier 51.

[0091] Figure 6 The steps of the method according to an embodiment of the present invention are shown in a schematic form.

[0092] Figure 6 Show the steps of the method for loosening the component 50 fixed on the carrier 51, the method comprising the following steps:

[0093] Provide the T1 nut 1 according to any one of claims 1 to 19 in its closed position 202 on the component 50, the component 50 having an external thread 50a corresponding to the thread 5 of the nut 1, and the thread 5 of the nut 1 being engaged into the external thread 50a of the component 50.

[0094] Operate the T2 thread 5 of the nut 1 by rotating the nut 1 to loosen the component 50 from the carrier 51 until the nut 1 is in its open position 201, and

[0095] Release the T3 nut 1 to move the nut 1 through the external thread 50a of the component 50 to its open position 201, thereby loosening the component 50 from the carrier 51.

[0096] In summary, at least one embodiment of the present invention has at least one of the following features and / or can provide at least one of the following advantages:

[0097] Simple, low-cost and rapid assembly and disassembly.

[0098] Simple and low-cost manufacturing.

[0099] Fewer components of the nut.

[0100] "Self-locking" nut.

[0101] Remove additional components, such as stabilizing triangles and / or washers.

[0102] The position of the threaded connection section on the first nut component is forcibly controlled by the second nut component.

[0103] Although the present invention has been introduced using the preferred embodiments, the present invention is not limited thereto, but can be modified in various ways.

[0104] List of reference numerals

[0105] 1 Nut

[0106] 2 First nut component

[0107] 2a Edge surface

[0108] 3 Second nut component

[0109] 3a Protrusion

[0110] 4 Threaded connection section

[0111] 4a Starting region

[0112] 4b End region

[0113] 5 Thread

[0114] 6 Slide groove

[0115] 7 Slide groove element

[0116] 8 Spring device

[0117] 9, 9’ Spring element

[0118] 10 Notch

[0119] 11 Pin

[0120] 12 Protrusion

[0121] 13 Flat protrusion

[0122] 14 Recess

[0123] 20 Upper sliding surface

[0124] 21 Lower sliding surface

[0125] 25 Sliding surface

[0126] 26 Sliding surface

[0127] 30 Clamping connection

[0128] 40 Transition / contact region

[0129] 50 Component

[0130] 50a External thread

[0131] 51 carrier

[0132] 51a opening

[0133] 52 stable triangle

[0134] 53 sealing ring

[0135] 55 fitting base

[0136] 56 protrusion

[0137] 92 angle

[0138] 100 system

[0139] 101 axial direction

[0140] 102 radial direction

[0141] 103 fixing direction

[0142] 201 open position

[0143] 202 closed position

[0144] S1 to S6 method steps

[0145] T1 to T3 method steps

Claims

1. A nut (1) for fixing a component on a carrier, in particular a sanitary fitting on a workbench, the nut comprising: a first nut member (2), and The second nut component (3) comprises: The first nut part (2) has at least two threaded connection sections (4) which have threads (5) on their radial inner sides, wherein the two nut parts (2, 3) are arranged to be movable relative to each other along the axial axis, so that in a first position, i.e. the open position (201), the threaded connection section (4) of the first nut part (2) can be arranged to protrude radially outwards, and in a second position, i.e. the closed position (202), the threaded connection section (4) of the first nut part (2) can be arranged to protrude radially inwards by means of the second nut part (3) to engage in a corresponding external thread (50a) of the component (50), It is characterized in that The first nut component (2) and the second nut component (3) are designed to be able to rotate freely relative to each other around an axial axis (101).

2. The nut (1) according to claim 1, characterized in that: The first nut part (2) and the second nut part (3) can be fixed to one another by means of fixing devices (6, 7), which are in particular designed to be releasable.

3. The nut (1) according to claim 2, characterized in that: The fixing device (6, 7) comprises a locking device, a clamping device or a snap-on device (30).

4. The nut (1) according to claim 2 or 3, characterized in that: The fixing device (6, 7) has at least one sliding guide (6) in which at least one sliding guide element (7) engages, in particular the at least one sliding guide (6) is arranged in the second nut part (3) and the sliding guide element (7) is arranged on the first nut part (2).

5. The nut (1) according to any one of claims 1 to 4, characterized in that The fixing device (6, 7) comprises surfaces (20, 21; 25, 26) on the first nut part (2) and the second nut part (3) which are slidable relative to each other and are inclined at an angle (92) relative to the axial direction (101), in particular, the angle (92) relative to the axial direction (101) is at least 5 degrees, in particular at least 10 degrees, preferably at least 15 degrees, in particular at least 30 degrees.

6. The nut (1) according to any one of claims 1 to 5, characterized in that A restoring device (8) is provided, which is designed to apply a restoring force in the direction of the open position (201).

7. The nut (1) according to claim 6, characterized in that The resetting device (8) comprises a spring device having at least one spring element (9, 9'), which is arranged between the first nut part (2) and the second nut part (3).

8. The nut (1) according to claim 7, characterized in that: At least one retaining element (12), in particular a plurality of retaining elements (12), is arranged on the second nut part (3), and the at least one spring element (9, 9') can be arranged to be supported on the at least one retaining element (12).

9. The nut (1) according to claim 8, characterized in that The retaining element (12) is designed in the form of an edge of the second nut part (3).

10. The nut (1) according to any one of claims 7 to 9, characterized in that The at least one spring element (9) is designed in the form of a disc spring, which is arranged between the first nut part (2) and the second nut part (3) in a detachable manner, or the at least one spring element (9) is designed in the form of at least two protrusions, in particular symmetrically arranged on the first nut part (2) and / or the second nut part (3) and facing the direction of the corresponding other nut part.

11. The nut (1) according to any one of claims 1 to 10, characterized in that The resetting device (8) and the fixing device (6, 7) are designed such that the resetting device (8) and the fixing device (6, 7) cooperate to provide an open position (201).

12. The nut (1) according to any one of claims 1 to 11, characterized in that The threaded connection section (4) is arranged parallel to the axial direction (101) in its unstressed state.

13. The nut (1) according to any one of claims 1 to 12, characterized in that The number of the threaded connection sections (4) is less than 30, preferably less than 15, in particular less than 8, preferably 4 and greater than 2.

14. The nut (1) according to any one of claims 1 to 5, characterized in that Open holding means (10, 11) are arranged to provide the open position (201).

15. The nut (1) according to claim 14, characterized in that The open holding device comprises at least one elongated element (11), which is held in or at at least one opening (10), in particular in a positively locking or frictionally locking manner, and engages in the at least one opening (10) during the transition from an open position (201) to a closed position (202), in particular the at least one elongated element (11) and the at least one opening (10) are arranged on a first nut part (2).

16. The nut (1) according to any one of claims 1 to 15, characterized in that The first nut component (2) is partially arranged in the second nut component (3), and the first nut component (2) is at least partially located on the radial outside of the second nut component (3), or conversely, the second nut component is partially arranged in the first nut component, and the second nut component is at least partially located on the radial outside of the first nut component.

17. The nut (1) according to any one of claims 1 to 16, characterized in that The second nut part (3) has abutment means (52, 53) on an axial side facing away from the first nut part (2) for abutting the nut (1) against a component (50).

18. The nut (1) according to claim 17, characterized in that The contact device (52, 53) comprises a flat component which is in particular designed in a triangular shape.

19. The nut (1) according to claim 17 or 18, characterized in that The contact device (52, 53) has at least one, in particular a plurality of, material weakenings (13), in particular slits, for separation.

20. A system (100) for fixing a component (50) on a carrier (51), comprising: A nut (1) according to any one of claims 1 to 19, wherein the component (50) has an external thread (50a) corresponding to the thread (5) of the nut (1), so that the nut (1) can be screwed onto the external thread (50a) in its closed position (202), and in its open position (201), the thread (5) can be provided with an internal diameter that is larger than the external diameter of the external thread (50a) at least in one region (4b).

21. A method for fixing a component (50) on a carrier (51), comprising the following steps: providing (S1) a nut (1) according to any one of claims 1 to 19 in an open position (201), Providing (S2) a component (50), wherein the component (50) has an external thread (50a) corresponding to the thread (5) of the nut (1), so that the nut (1) can be screwed onto the external thread (50a) in its closed position (202), Arranging (S3) the component (50) on the carrier (51), The nut (1) in the open position (201) is pushed (S4) through the external thread (50a) of the component (50) until the nut (1) rests with its second nut part (3) on the carrier (51). operating (S5) the first nut part (2) until the nut (1) is in its closed position (202) to engage the thread (5) into the external thread (50a) of the member (50), and The thread (5) of the nut (1) is operated (S6) by rotating the nut (1) to fix the component (50) on the carrier (51).

22. A method for loosening a component (50) fixed to a carrier (51), comprising the following steps: A nut (1) according to any one of claims 1 to 19 is provided (T1) in its closed position (202) on a component (50), wherein the component (50) has an external thread (50a) corresponding to the thread (5) of the nut (1), and the thread (5) of the nut (1) engages in the external thread (50a) of the component (50), operating (T2) the thread (5) of the nut (1) to loosen the member (50) from the carrier (51) by turning the nut (1) until the nut (1) is in its open position (201), and The nut is released (T3) to move the nut into its open position (201) via the external thread (50a) of the component (50) to loosen the component (50) from the carrier (51).

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