Nut for fastening a sanitary fitting to a support

Description

[0001] The present invention relates to a nut for fastening a sanitary fitting to a support according to the preamble of claim 1. Sanitary fittings serve in particular to provide a liquid as needed at a washbasin, sink, bathtub and / or shower.

[0002] To attach the sanitary fittings, the brackets typically have a mounting opening through which the fittings extend with a stem. The stem can, for example, be a threaded sleeve. On the side of the bracket opposite the fitting, a nut is screwed onto the stem, securing the fitting to the bracket. Due to the length of the stem, tightening the nut can be quite laborious. For example, it may require significantly more than 20 turns to tighten the nut.

[0003] There are generally known fastening nuts suitable for fastening sanitary fittings to a support in confined spaces from below the support, for example from CN 110725368 A, US 6,874,527 B2, US 2010 / 0272503 A1 and KR 10-1784906 B1.

[0004] The object of the invention is therefore to at least partially solve the problems described with reference to the prior art and in particular to provide a nut with which a sanitary fitting can be fastened with minimal effort.

[0005] This problem is solved by a nut according to the features of the independent claim. Further advantageous embodiments of the nut are specified in the dependent claims. In addition, the features specified in the claims are further specified and explained in the description, and further preferred embodiments of the invention are presented.

[0006] This includes a nut for attaching a sanitary fitting to a support, which has at least the following features: a base body with a plurality of threaded tabs which are adjustable in a radial direction when the nut is pushed onto a thread of the sanitary fitting, and a rotary lock which is rotatably attached to the base body between a locking position and a release position, wherein the rotary lock in the locking position locks the threaded tabs.

[0007] The (multi-part) nut is designed in the manner of a screw nut and / or can be screwed onto an (external) thread around a longitudinal or rotational axis of the nut. For this purpose, the nut has a base body with a plurality of threaded tabs. The base body can be tubular and / or have a round cross-section. Furthermore, the base body can extend along the longitudinal or rotational axis of the nut and / or have a straight course. In addition, the base body can be made at least partially of plastic and / or metal. The threaded tabs are designed in the manner of thread flanks or tongues. Furthermore, the threaded tabs can be flexible on the base body. Additionally, an internal thread of the base body can be formed on the threaded tabs.

[0008] Furthermore, the nut has a rotary lock that is rotatably attached to the base body relative to it. The rotary lock can be rotatably attached, in particular, to a circumferential surface of the base body. The rotary lock can also be ring-shaped. In addition, the rotary lock can be made at least partially of plastic and / or metal. The rotary lock is rotatable, particularly to a limited extent, between a locking position and a release position. In the release position of the rotary lock, the threaded tabs are exposed, allowing the nut to be slid onto a support, such as a (work)top, when the sanitary fitting is attached to a support. This allows the nut to be slid onto, for example, a fitting stem designed as a threaded sleeve. When slid onto the fitting stem, the threaded tabs are engaged by the thread of the fitting stem in a radial direction, i.e.,The nut is perpendicular to its longitudinal axis or axis of rotation and can be bent or adjusted outwards. This means the nut does not need to be screwed along the entire length of the fitting shaft. When the nut reaches the underside of the support, the locking mechanism rotates relative to the base body into the locking position, thus locking the threaded tabs. "Locking" means, in particular, that the threaded tabs are fixed in such a way that the internal thread of the base body can no longer slide along the thread of the fitting shaft in an axial direction, i.e., parallel to the longitudinal axis or axis of rotation of the nut. Instead, the internal thread formed on the threaded tabs can engage with the thread of the fitting shaft, allowing the nut to be tightened with just a few turns, for example, fewer than five. Tightening can be done by hand and / or with a wrench.The term "locking" can also mean that bending or adjusting the threaded tabs in the radial outward direction is blocked. This prevents the thread formed on the threaded tabs of the nut from disengaging from the external thread of the fitting shaft of the sanitary fitting when the nut is tightened.

[0009] The base body or the screw cap may be made at least partially of glass fiber reinforced plastic. In particular, the base body and / or the screw cap may be made at least partially of glass fiber reinforced plastic.

[0010] The nut can be designed in two parts. This can mean, in particular, that the nut consists of only two parts: the base body and the twist lock.

[0011] The base body can have a first length of at least 40 mm (millimeters). In particular, the first length can be between 40 mm and 120 mm. The first length is measured parallel to the longitudinal axis or axis of rotation of the nut.

[0012] The rotary lock can have a second length of at least 5 mm. Preferably, the rotary lock can have a second length of 5 mm to 40 mm, particularly preferably 25 mm to 30 mm. The second length is measured in particular parallel to the longitudinal axis or axis of rotation of the nut.

[0013] The rotary lock can be rotated between the locked and released positions by an angle of 10° to 180°. Preferably, the rotary lock is rotatable between the locked and released positions by an angle of 10° to 90°, particularly preferably (essentially) 30°.

[0014] The base body can have at least one stop that limits the rotation angle of the rotary lock. This stop can, for example, extend radially outwards. Furthermore, in the locked position, the stop can, for example, contact a first stop surface of the rotary lock and / or in the released position, contact a second stop surface of the rotary lock.

[0015] The twist lock can have multiple recesses into which the threaded tabs are adjustable in the radial direction when the twist lock is in its open position. These recesses can be designed, for example, as cutouts or grooves. Furthermore, the recesses can be located on an inner surface of the twist lock and / or extend radially through the twist lock.

[0016] The clearances can have a depth of at least 1 mm. Preferably, the clearances can have a depth of 1 mm to 10 mm, particularly preferably 1 mm to 5 mm. The depth is measured in particular in the radial direction of the nut, especially starting from the inner surface of the rotary lock.

[0017] The rotary lock is guided on the base body between a first axial stop and a second axial stop. The first axial stop and / or second axial stop can extend radially outwards from a circumferential surface of the base body. The first axial stop is formed at a first longitudinal end of the base body. The second axial stop is

[0018] The rotary closure is designed to be so small in the radial direction that, through elastic deformation of the closure and / or the second axial stop, it can be attached to the base body from a second longitudinal end in the axial direction up to the first axial stop. This allows the rotary closure to be attached to the base body with minimal effort.

[0019] The invention and its technical context are explained in more detail below with reference to the figures. It should be noted that the figures show a particularly preferred embodiment of the invention, but that the invention is not limited to this embodiment. Identical components in the figures are designated with the same reference numerals. The figures show, by way of example and schematically: Fig. 1: A sanitary fitting attached to a support with a nut in a side view; Fig. 2: The nut in a perspective view; Fig. 3: The nut in a first sectional view along a section in the Fig. 1 Section line III-III shown; Fig. 4: the mother in a second sectional view along a line in the Fig. 3 Section line IV-IV shown; Fig. 5: the mother in a third sectional view along a line in the Fig. 1 section line VV shown; and Fig. 6: the mother in a fourth section view along a line in the Fig. 5 shown section line VI-VI.

[0020] The Fig. 1 Figure 1 shows a side view of a sanitary fitting 2 attached to a support 3 by a nut 1. The sanitary fitting 2 has a fitting body 18 with a swiveling spout 19. The spout 19 has a discharge opening 20 through which the sanitary fitting 2 can discharge liquid into an environment 21. The sanitary fitting 2 is inserted through a mounting opening 23 of the support 3 by means of a fitting stem 22 having a thread 6 and is fastened to the support 3 by the nut 1. For this purpose, a rotary lock 8 of the nut 1 was inserted into a hole in the Fig. 3 The release position 10 shown was turned, and the nut 1 was then placed along its longitudinal axis 24 onto the fitting shaft 22 until a first longitudinal end 25 of the nut 1 abutted a bottom surface 26 of the carrier 3. The rotary lock 8 was then inserted into a position in the Fig. 5 The locking position 9 shown was adjusted and the nut 1 was then tightened by hand against the underside 26 of the carrier 3.

[0021] The Fig. 2 Figure 1 shows the nut 1 in a perspective view. The (multi-part) nut 1, or nut assembly, comprises a base body 4 and the rotary lock 8, which is rotatably attached to the base body 4. The base body 4 is tubular and extends along the longitudinal axis 24 from the first longitudinal end 25 to a second longitudinal end 30. Furthermore, the base body 4 has a first length 11 along the longitudinal axis 27, and the rotary lock 8 has a second length 12. In addition, the base body 4 includes a plurality of threaded tabs 5 in the area of ​​the rotary lock 8, on which an internal thread 28 of the base body 4 is formed. The threaded tabs 5 extend parallel to the longitudinal axis 24 in a longitudinal direction 27, with a projecting end 29 of the threaded tabs 5 oriented towards the second longitudinal end 30 of the base body 4.The rotary lock 8 is here in a release position 10, in which the threaded tabs 5 are engaged when the nut 1 is placed on the . Fig. 1 The valve stem 22 of the sanitary fitting 2 shown is adjustable or bendable outwards in a radial direction 7 by means of the thread 6 formed on the valve stem 22. This allows the nut 1 to be slid onto the valve stem 22 parallel to the longitudinal axis 24 without rotation. The base body 4 comprises a grip area 31, which extends from the rotary closure 8 to the second longitudinal end 30 and has a third length 32 parallel to the longitudinal axis 27.

[0022] The Fig. 3 The mother 1 is shown in a first sectional view along a line in the Fig. 1 Section line III-III shown. It can be seen in particular that the base body 4 of the nut 1 shown here has six threaded tabs 5, which are evenly distributed in a circumferential direction 33 of the nut 1. The rotary lock 8 is in the release position 10, in which clearances 15 in the radial direction 7 coincide with the threaded tabs 5. This allows the threaded tabs 5 to be adjusted outwards in the radial direction 7 into the clearances 15 of the rotary lock 8.

[0023] The Fig. 4 The mother 1 is shown in a second sectional view along one in the Fig. 3 Section line IV-IV shown. The free space 15 has a depth 35 extending outwards from an inner surface 34 of the rotary lock 8 in the radial direction 7.

[0024] The Fig. 5 The mother 1 is shown in a third sectional view along one in the Fig. 1 Section line VV shown. In the third section view, it can be seen that the base body 4 has three stops 14 that extend outwards in the radial direction 7. In comparison to the one shown in the Fig. 3 In the release position 10 of the rotary lock 8 shown, the rotary lock 8 was in the Fig. 5 The rotary lock 8 is rotated counterclockwise relative to the base body 4 by a rotation angle 13° into a locking position 9 until the first stop surfaces 36 of the rotary lock 8 contact the stops 14 of the base body 4, so that the rotary lock 8 can no longer be rotated counterclockwise relative to the base body 4. In the locking position 9, the clearances 15 of the rotary lock 8 do not (fully) coincide with the threaded tabs 5 of the base body 4 in the radial direction 7. This locks the threaded tabs 5, preventing them from being adjusted outwards in the radial direction 7. From the locking position 9, the rotary lock 8 is rotated clockwise relative to the base body 4 by a rotation angle 13° back into the position described in the Fig. 3 The release position 10 shown is adjustable until the second stop surfaces 37 of the rotary lock 8 contact the stops 14 of the base body 4, so that the rotary lock 8 can no longer be rotated clockwise relative to the base body 4.

[0025] The Fig. 6 The mother 1 is shown in a fourth sectional view along one in the Fig. 5 section line VI-VI shown. This can be seen in the Fig. 6 , that an outer surface 38 of the threaded tabs 5 of the base body 4 rests directly against the inner surface 34 of the rotary lock 8, so that the threaded tabs 5 are not adjustable outwards in the radial direction 7. This prevents the internal thread 28 of the base body 4 from being engaged via the Fig. 1 The thread 6 of the valve stem 22 shown does not slip, but is engaged with the thread 6. This allows the nut 1 to be tightened on the valve stem 22 by a rotation about the amount shown in the Fig. 2 The longitudinal axis 24 shown is tightened. The rotary lock 8 is guided on the base body 4 between a first axial stop 16 and a second axial stop 17, so that the rotary lock 8 rotates in an axial direction 40, i.e. parallel to the one shown in the Fig. 2 The longitudinal axis 24 of the base body 4 shown cannot detach from the base body 4. The axial stops 16, 17 extend outwards from a circumferential surface 39 of the base body 4 in the radial direction 7. The first axial stop 16 is formed at the first longitudinal end 25 of the base body 4. The second axial stop 17 is designed such that the rotary lock 8 cannot detach from the base body 4 along the longitudinal axis 24 of the base body 4 shown. The axial stops 16, 17 extend outwards from a circumferential surface 39 of the base body 4 in the radial direction 7. The first axial stop 16 is formed at the first longitudinal end 25 of the base body 4. The second axial stop 17 is designed such that the rotary lock 8 cannot detach from the base body 4 by elastic deformation of the rotary lock 8 and / or the second axial stop 17. Fig. 2 The second longitudinal end 30 of the base body 4 shown can be attached in the axial direction 14 up to the first axial stop 16 on the base body 4.

[0026] The present invention makes it possible to attach sanitary fittings with minimal effort. Bezugszeichenliste

[0027] 1 Nut 2 Sanitary fitting 3 Carrier 4 Base body 5 Threaded tab 6 Thread 7 Radial direction 8 Rotary lock 9 Locking position 10 Release position 11 First length 12 Second length 13 Angle of rotation 14 Stop 15 Clearance 16 First axial stop 17 Second axial stop 18 Fitting body 19 Spout 20 Spout opening 21 Surroundings 22 Fitting shaft 23 Mounting opening 24 Longitudinal axis 25 First longitudinal end 26 Underside 27 Longitudinal direction 28 Internal thread 29 Projecting end 30 Second longitudinal end 31 Grip area 32 Third length 33 Circumferential direction 34 Inner surface 35 Depth 36 First stop surface 37 Second stop surface 38 Outer surface 39 Circumferential surface 40 Axial direction

Claims

1. A nut (1) for securing a sanitary fitting (2) to a support (3), wherein the nut can be screwed onto a thread (6) of the sanitary fitting (2) about a longitudinal axis (24) of the nut (1), and having at least: - a base body (4) with a plurality of threaded lugs (5) which can be adjusted in a radial direction (7), namely orthogonal to the longitudinal axis of the nut (1), when the nut (1) is slid onto the thread (6), and - a rotary lock (8) that is secured on the base body (4) to be rotatable between a locking position (9) and a release position (10), wherein the rotary lock (8) locks the threaded lugs (5) in the locking position (9), wherein the rotary lock (8) is guided on the base body (4) between a first axial stop (16) of the base body (4) and a second axial stop (17) of the base body (4), and wherein the first axial stop (16) is formed at a first longitudinal end (25) of the base body (4), characterized in that the second axial stop (17) is formed so small in the radial direction (7) of the base body (4) that the rotary lock (8) can be pushed onto the basic body (4) in the axial direction (40) of the basic body (4) by elastic deformation of the rotary lock (8) and / or the second axial stop (17) from a second longitudinal end (30) of the basic body (4) up to the first axial stop (16).

2. The nut (1) according to any on one of the preceding claims, wherein the base body (4) or the rotary lock (8) consists at least partially of glass fiber reinforced plastic.

3. The nut (1) according to any one of the preceding claims, wherein the nut (1) is formed in two parts.

4. The nut (1) according to any one of the preceding claims, wherein the base body (4) has a first length (11) of at least 40 mm.

5. The nut (1) according to any one of the preceding claims, wherein the rotary lock (8) has a second length (12) of at least 5 mm.

6. The nut (1) according to any one of the preceding claims, wherein the rotary lock (8) can be rotated between the locking position (9) and the release position (10) by an angle of rotation (13) of 10° to 180°.

7. The nut (1) according to any one of the preceding claims, wherein the base body (4) has at least one stop (14) which limits an angle of rotation (13) of the rotary lock (8).

8. The nut (1) according to any one of the preceding claims, wherein the rotary lock (8) has a plurality of free spaces (15) into which the threaded lugs can be moved in the radial direction (7) in the release position (10) of the rotary lock (8).

9. The nut (1) according to claim 8, wherein the free spaces (15) have a depth (35) of at least 1 mm.