Wall-mounting device for an installation element for a sanitary fixture, and installation element comprising such a wall-mounting device
The wall mounting device with a pivoting rod and disc spring system addresses the challenge of mounting sanitary fixtures on non-vertical walls by enabling easy adjustment and preventing rotation, ensuring a stable vertical installation.
Patent Information
- Application Number
- PCT/EP2025/064173
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-06-28
- Filing Date
- 2025-05-22
- Publication Date
- 2026-01-02
AI Technical Summary
Existing wall mounting devices for sanitary installations face difficulties in attaching installation elements to non-vertical walls, leading to jamming and complicating the vertical mounting process.
A wall mounting device with a hinge socket and a rod featuring a ball joint that allows pivoting and prevents rotation, combined with a disc spring for secure attachment, enabling adjustment to uneven walls and preventing twisting.
Facilitates easy and secure vertical mounting of sanitary fixtures on sloping or uneven walls by allowing for precise alignment and preventing rotation, ensuring a stable installation.
Smart Images

Figure EP2025064173_02012026_PF_FP_ABST
Abstract
Description
[0001] Wall mounting device for an installation element for a sanitary installation, and installation element with such a wall mounting device
[0002] The present invention relates to a wall mounting device for an installation element for sanitary equipment, and to an installation element comprising such a wall mounting device. The installation element allows the sanitary equipment, for example a toilet, bidet, or urinal, to be mounted to a building wall and / or a building floor.
[0003] The installation element may have a mounting frame that must be attached to the building wall in a vertical orientation and at a distance from the building wall. Wall mounting devices are known for attaching the installation element to the building wall; these devices comprise a wall element and a connecting screw for the installation element. The wall element is attached flat to the building wall, for example, using a screw-anchor connection. If the building wall is slanted or not vertical, the connecting screw will not protrude horizontally from the building wall or be oriented perpendicular to the installation element. This can lead to problems when attaching the installation element to the connecting screw.For example, the connecting screw may become jammed in an interface of the installation element, making quick and / or fine adjustment of the installation element difficult or impossible. This complicates the vertical mounting of the installation element on the building wall.
[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 wall mounting device for an installation element that facilitates vertical mounting of the installation element. Furthermore, an installation element for a sanitary fitting is also to be provided, the wall mounting device of which facilitates vertical mounting of the installation element. These objects are achieved with a wall mounting device and an installation element according to the features of the independent claims. Further advantageous embodiments of the invention are specified in the dependent claims. It should be noted that the features listed individually in the claims can be combined with one another in any technologically meaningful way and define further embodiments of the invention.Furthermore, the features specified in the patent claims are further specified and explained in the description, and further preferred embodiments of the invention are presented.
[0005] This includes a wall mounting device for an installation element for a sanitary facility, which has at least the following features:
[0006] - a wall element for attachment to a wall, wherein the wall element includes a hinge socket; and
[0007] - a rod with a ball joint which is mounted in the socket such that the rod can pivot around the ball joint relative to the wall element, whereby a rotation of the rod about its longitudinal axis is prevented by a positive locking between the ball joint and the socket.
[0008] The installation element can have a mounting frame. The mounting frame can, for example, comprise at least one metal profile. Furthermore, the mounting frame can, for example, have a (particularly vertical) first metal profile and a (particularly vertical) second metal profile, which are connected to each other by at least one (particularly horizontal) (metal) crossbar. The first metal profile, the second metal profile, and / or the at least one (metal) crossbar can, for example, be connected to each other by a welded or bolted connection. Alternatively, the first metal profile, the second metal profile, and / or the at least one (metal) crossbar can be formed in one piece.The mounting frame has a frame width of, for example, 400 mm to 600 mm, preferably 490 mm to 510 mm, and particularly preferably (essentially) 500 mm (especially in an operational state, after being attached to a wall, building wall, or building floor, and / or in a horizontal direction). The mounting frame may be height-adjustable. This can mean that the frame height of the mounting frame is adjustable (especially in a vertical direction). For this purpose, the mounting frame may have at least one adjustable foot. For example, the mounting frame may have a first foot that is adjustable on and / or within the (vertical) first metal profile. For example, the mounting frame may have a second foot that is adjustable on and / or within the (vertical) second metal profile. The frame height may be, for example, 750 mm to 1,400 mm, preferably 1,130 mm to 1,330 mm.The frame height can be measured in the vertical direction (especially after the installation element or mounting frame has been mounted on the wall and / or on the building floor).
[0009] The installation element or mounting frame can be attached to the wall, particularly with a gap, using at least one wall mounting device. The wall can be, for example, a building wall, a structural wall, or a drywall partition. The mounting frame can be positioned or attached to the building floor. After the mounting frame is attached to the wall, the installation element can be at least partially concealed by a partition wall. This partition wall can consist, at least partially, of at least one panel, at least one gypsum board, at least one plasterboard, and / or at least one tile.
[0010] The installation element can include at least one mounting element for a sanitary fixture. The sanitary fixture could be, for example, a toilet, bidet, or urinal. The at least one mounting element can be attached to the mounting frame or the mounting frame's crossbar. The at least one mounting element can, for example, be designed like a threaded rod. The sanitary fixture can be screwed to, or be screwed to, the at least one mounting element. The at least one mounting element can extend through the wall. The installation element can include a cistern for a flushing fluid used to flush the sanitary fixture, which can be attached to the mounting frame. The flushing fluid can be, in particular, water.The flushing fluid is supplied to the cistern from a flushing fluid source, such as a public water supply network. The cistern may be made at least partially of plastic and / or be manufactured as an injection-molded plastic part. The cistern has a reservoir for the flushing fluid, which may have a capacity of, for example, 3 to 9 liters. Furthermore, the reservoir may have an opening at the top, which may be at least partially closed, for example, by a lid.
[0011] The cistern may have a fill valve for filling it with flushing fluid. This fill valve is primarily used for automatically filling the cistern or automatically refilling it after a flush. The cistern may also have a flush valve. This valve controls the release of flushing fluid into the sanitary fixture. The flushing fluid can be released into the sanitary fixture via a flushing line. The flushing fluid is used to remove bodily waste from the sanitary fixture. The flushing fluid and / or bodily waste can be discharged from the sanitary fixture into a sewer system, primarily via a wastewater line. The flushing line can, for example, be a pipe.The fill valve and / or flush valve can be, for example, an electrically operated valve, a solenoid valve, or a manually operated valve. The fill valve can be actuated by a float. The float can float on the flushing fluid in the cistern's reservoir. Furthermore, the float is raised by the flushing fluid as the fluid level rises and lowered as the fluid level falls. The float closes the fill valve when the flushing fluid reaches the target level. If the flushing fluid level drops, for example, when flushing a shower toilet, the float opens the fill valve until the flushing fluid level reaches the target level again.The flush valve can be operated by a user of the shower toilet, for example, via an actuating element. This actuating element can be designed, for example, like a button.
[0012] The wall mounting device includes a wall element for attachment to the wall. The wall element can be made at least partially of plastic and / or metal, for example, die-cast zinc. The wall element can be at least partially plate-shaped. The wall element can have a front and a back. The back can form a wall contact surface for the wall element. The wall element can have at least one mounting opening through which the wall element can be attached to the wall, for example, via a screw and dowel connection. The at least one mounting opening can be designed as an elongated hole. The wall element can be attached to the wall, in particular, via its wall contact surface. The wall element has a hinge socket. To form the hinge socket, the wall element can have a hinge opening. The hinge opening can extend from the front to the back of the wall element.
[0013] The wall mounting device comprises a rod that extends along a longitudinal axis, particularly a straight one, for example, from a longitudinal mounting end to a longitudinal joint end. The rod can have a length of, for example, 100 mm to 250 mm (particularly along the longitudinal axis) and / or a diameter of, for example, 5 mm to 20 mm (particularly perpendicular to the longitudinal axis). The rod can be made at least partially of plastic and / or metal. The installation element or mounting frame can be attached to the longitudinal joint end. The rod can extend through the joint opening of the wall element. The rod has a joint head, which can be arranged, in particular, at the longitudinal joint end of the rod. The joint head can be a ball joint.The rod end can have a diameter of, for example, 5 mm to 30 mm (particularly perpendicular to the longitudinal axis). The rod end is mounted in the socket. The rod end and the socket can form a ball joint. The socket can have at least one sliding surface on which the rod end can slide. The rod end is mounted in the socket such that the rod is pivotable around the rod end relative to the wall element. For example, the rod can pivot around the rod end within a conical pivot range. In the rod's neutral position, its longitudinal axis can be aligned with a center axis of the pivot range. In the neutral position, the rod's longitudinal axis can be oriented perpendicular to the wall contact surface of the wall element.From the neutral position, the rod can pivot around the ball joint in any direction, for example, by 10° to 45°, preferably by 10° to 30°, and particularly preferably by (essentially) 20°. The longitudinal end of the rod that is attached can pivot on a circular path around the ball joint and / or around the center axis of the pivoting range. The center axis can pass through the center point of the circular path. Twisting or rotation of the rod about the longitudinal axis is prevented by a positive fit between the ball joint and the socket.
[0014] The ball joint formed by the socket and ball head allows the rod to be adjusted to compensate for sloping and / or uneven walls. This enables the installation element or mounting frame to be attached to the wall mounting device or the rod without jamming. Simultaneously, this prevents the rod from twisting when the installation element or mounting frame is attached.
[0015] The rod may have a thread. The thread may extend, in particular, from the longitudinal end of the rod at least partially to the ball joint. The thread may be an external thread. The rod may be a threaded rod or a screw. The thread allows the installation element or mounting frame to be attached to the rod, for example, using a nut, and in particular prevents the rod from rotating about its longitudinal axis when the nut is tightened.
[0016] The joint head may be at least partially non-spherical. The articular fossa may be at least partially congruent with the non-spherical shape of the joint head.
[0017] The rod end can be polygonal. For example, the rod end can have 1 to 20 edges, preferably 4 to 8 edges, and particularly preferably 6 edges. The edges can each be curved about an axis of curvature, which is particularly perpendicular to the longitudinal axis. Between the edges, the rod end can have sliding surfaces. The sliding surfaces can be convex and / or curved. The sliding surfaces can be bent about a bending axis, which is particularly perpendicular to the longitudinal axis. The rod end can slide in the socket with the sliding surfaces, particularly when the rod is pivoted around the rod end relative to the wall element. The socket and / or the opening can be polygonal. For example, the socket can have 1 to 20 corners, preferably 4 to 8 corners, and particularly preferably 6 corners. For example, the opening can be hexagonal.The glenoid cavity can have the same number of corners as the articular head has edges. The edges of the articular head can be located in the area of the corners of the glenoid cavity.
[0018] The glenoid cavity can have multiple ridges. These ridges can extend, at least partially, radially into the joint opening. The glenoid cavity can have as many ridges as it has corners. The ridges can be located between the corners.
[0019] The webs can each have a concave sliding surface for the rod end. The rod end can, in particular, slide on the sliding surfaces of the webs with its rod end sliding surfaces. A disc spring can hold the rod end in the socket. The disc spring is, in particular, an annular, conical, and / or tapered element that is subjected to axial loads. The disc spring can consist, at least partially, of plastic and / or metal. Under axial load, the disc spring can generate a progressive spring force, which can, in particular, be the result of elastic deformation of the disc spring. The disc spring can hold the rod end in the socket without play. The disc spring can at least partially enclose the rod end. The disc spring can at least partially form the socket of the wall element.The rotation of the rod around its longitudinal axis can be prevented by a positive fit between the ball joint and the disc spring.
[0020] The disc spring can be attached to the wall element by means of a bayonet fitting. The wall element can have at least one mounting lug for the disc spring. For example, the wall element can have 1 to 6 mounting lugs, preferably 3. The disc spring can have at least one recess, in particular in an outer circumferential surface of the disc spring. For example, the disc spring can have 1 to 6 recesses, preferably 3. The disc spring can have the same number of recesses as the wall element has mounting lugs. The mounting lugs can be arranged in a star shape. To attach the disc spring to the wall element, the disc spring can be aligned such that the at least one recess is flush with the at least one mounting lug. The disc spring can then be positioned in the wall element and rotated to lock it in place.The wall element can have at least one locking rib with which the disc spring can engage in a detent position, for example, with the at least one recess. In the detent position, the disc spring is secured against unintentional detachment from the wall element. The at least one locking rib can be triangular. The disc spring can include at least one projection that protrudes from a wall contact surface of the wall element. For example, the disc spring can have 2 to 6 projections, preferably 3 projections. The projections can be arranged in a ring. If the disc spring is attached to the wall element, the at least one projection can protrude, for example, 0.5 mm to 3 mm from the wall contact surface of the wall element, particularly if the wall element is not attached to the wall.When the wall element is attached to the wall, the wall can press the disc spring against the ball joint via the at least one projection, ensuring that the ball joint sits securely in the socket, particularly without play. The at least one projection can serve as a force-applying surface for a rotary tool, allowing the disc spring to be rotated within the wall element for tightening or loosening.
[0021] Following another aspect, an installation element for a sanitary facility is proposed that has at least the following features:
[0022] - a mounting frame to which the sanitary fixture can be attached; and
[0023] - at least one wall mounting device as described here.
[0024] For further details regarding the installation element, please refer in full to the description of the wall mounting device.
[0025] 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 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:
[0026] Fig. 1: a sanitary installation in a perspective view;
[0027] Fig. 2: An installation element for attaching the sanitary fixture to a wall in a perspective view; Fig. 3: A wall mounting device of the installation element in an exploded view;
[0028] Fig. 4: the wall mounting device in a perspective view with a rod in a neutral position;
[0029] Fig. 5: the wall mounting device in a perspective view with the rod in a swiveled position;
[0030] Fig. 6: a wall element of the wall mounting device in a perspective view;
[0031] Fig. 7 shows a rod end in a perspective view;
[0032] Fig. 8 shows the joint head in a joint socket of the wall element in a perspective view;
[0033] Fig. 9: the wall mounting device with a disc spring in a perspective view;
[0034] Fig. 10: the wall mounting device in a sectional view; and
[0035] Fig. 11: the wall mounting device in a side view.
[0036] Fig. 1 shows a sanitary room 17 with a sanitary fixture 3 in a perspective view, which is a toilet. The sanitary fixture 3 is attached to a wall 5 by means of an installation element 2 shown in Fig. 2. The installation element 2 is shown in Fig.
[0037] 1 covered with a wall 18, so that the installation element 2 in Fig. 1 is not visible.
[0038] In Fig. 2, the partition wall 18 and the sanitary fixture 3 shown in Fig. 1 are not shown, so that the installation element 2 is visible. The installation element 2 comprises a mounting frame 16 to which a cistern 19 for receiving a flushing fluid is attached. The cistern 19 has a flushing fluid line 20 through which the flushing fluid can be supplied from the cistern 19 to the sanitary fixture 3 shown in Fig. 1. The dispensing of the flushing fluid can be controlled by a user of the sanitary fixture 3 shown in Fig. 1 via an actuating element 21. The installation element 2 includes a wastewater line 22 through which the flushing fluid can be discharged into a sewer system (not shown) after flushing the sanitary fixture 3 shown in Fig. 1.The mounting frame 16 of the installation element 2 is attached to the wall 5 at its two upper corners by two wall fixing devices 1, so that the mounting frame 16 is spaced away from the wall 5.
[0039] Fig. 3 shows an exploded view of one of the wall mounting devices 1 of the installation element 2 shown in Fig. 2. The wall mounting device 1 comprises a plate-shaped wall element 4 with a front 23 and a back 24. The back 24 forms a wall contact surface 15 of the wall element 4, with which the wall element 4 can be attached to the wall 5 shown in Fig. 2. The wall element 4 has a mounting opening 25 for a screw (not shown) with which the wall element 4 can be screwed to the wall 5 shown in Fig. 2. The mounting opening 25 is designed as an elongated hole. The wall element 4 has a hinge opening 26 for forming a hinge socket 6.
[0040] The wall mounting device 1 comprises a rod 7 extending along a (straight) longitudinal axis 9 and having a thread 10. The rod 7 includes a longitudinal mounting end 27 for the mounting frame 16 of the installation element 2 shown in Fig. 2 and a longitudinal pivot end 28 with a pivot head 8. The rod 7 can be inserted through the pivot opening 26 of the wall element 4 until the pivot head 8 of the rod 7 is in the pivot socket 6 of the wall element 4. The pivot head 8 can be secured in the pivot socket 6 of the wall element 4 by a disc spring 13 of the wall mounting device 1.
[0041] Fig. 4 shows the wall mounting device 1 in a perspective view. The wall element 4 is attached to the wall 5 with its rear side 24, or wall contact surface 15. The ball joint 8 of the rod 7 is located in the socket 6 of the wall element 4, so that the rod 7 can pivot about the ball joint 8 relative to the wall element 4. In Fig. 4, the rod 7 is in a neutral position, in which the longitudinal axis 9 of the rod 7 is orthogonal to the rear side 24, or wall contact surface 15, of the wall element 4. A positive locking mechanism is formed between the ball joint 8 and the socket 6, which prevents the rod 7 from twisting or rotating about its longitudinal axis 9.
[0042] Fig. 5 shows the wall mounting device 1 in a perspective view with the rod 7 in a pivoted position. The rod 7 can be pivoted about the ball joint 8 in a conical pivot range 30. In the neutral position of the rod 7 shown in Fig. 4, the longitudinal axis 9 of the rod 7 is aligned with a center axis 31 of the pivot range 30. The longitudinal mounting end 27 of the rod 7 can be pivoted on a circular path 29 about the ball joint 8 or about the center axis 31. The center axis 31 passes through a center point of the circular path 29.
[0043] Fig. 6 shows the wall element 4 in a perspective view looking at the rear side 24 or the wall contact surface 15. The joint opening 26 is hexagonal and has six corners 32 and six sides 33. Each side 33 has a web 11 extending radially inwards. Each web 11 has a concave sliding surface 12 for the rod end 8 shown in Figs. 3 to 5. Fig. 7 shows the rod end 8 of the rod 7 in a perspective view. The rod end 8 comprises six edges 34 and six rod end sliding surfaces 35, such that the rod end 8 has a hexagonal cross-section in a section plane perpendicular to the longitudinal axis 9. The edges 34 and rod end sliding surfaces 35 are each curved about an axis of curvature (not shown here) perpendicular to the longitudinal axis 9.
[0044] Fig. 8 shows the ball joint 8 in the socket 6 of the wall element 4 in a perspective view. The edges 34 of the ball joint 8 are seated in the corners 32 of the socket 6, so that there is a positive fit between the ball joint 8 and the socket 6, which prevents the rod 7 from rotating about the longitudinal axis 9. The ball joint sliding surfaces 35 can slide on the sliding surfaces 12 of the webs 11 shown in Fig. 6, so that the rod 7 can pivot about the ball joint 8. The wall element 4 has three mounting webs 36 for the disc spring 13 shown in Fig. 3.
[0045] Fig. 9 shows the wall mounting device 1 in a perspective view during the attachment of the disc spring 13. The disc spring 13 has recesses 37 for the mounting lugs 36, so that the disc spring 13 can be positioned on the ball joint 8 with the recesses 37 aligned with the mounting lugs 36. The disc spring 13 can then be rotated so that the recesses 37 no longer align with the mounting lugs 36 and the disc spring 13 is attached to the wall element 4 with a bayonet connection. In the attached state, the disc spring 13 holds the ball joint 8 in the socket 6. In the attached state, one of the recesses 37 engages with a locking lug 45 of the wall element 4, thus locking the disc spring 13 in place.
[0046] Fig. 10 shows the wall mounting device 1 in a sectional view along the section plane X shown in Fig. 9. It can be seen in Fig. 10 that the disc spring 13 is cup-shaped. The disc spring 13 has projections 14 (see Fig. 9) that protrude from the wall contact surface 15 of the wall element 4. When the wall element 4 is attached to the wall 5 shown in Figs. 1, 2, and 4, the projections 14 are pressed into the wall element 4, so that the disc spring 13 presses the ball joint 8 into the socket 6, and the disc spring is free of play. Fig. 11 shows the wall mounting device 1 in a side view after it has been attached to the wall 5. The wall element 4 has a circumferential surface 38 or a head. The circumferential surface 38 or the head is at least partially round or may have a rounded shape. The rounding can have a radius 39, the center point 40 of which lies in the center of the socket 6 shown in Fig. 10.Thus, even in a tilted state 41 of the wall element 4 (due to a sloping wall 5), the circumferential surface 38 (or its curvature) can still form a support point 42 for an upper cover plate 43 (see Fig. 1) of the installation element 2, enabling a horizontal arrangement of the cover plate 43 between the support point 42 and a top surface 44 of the installation element 2. The invention enables vertical mounting of the installation element 2.
[0047] Reference symbol list
[0048] 1 wall mounting device
[0049] 2 Installation element
[0050] 3 Sanitary facilities
[0051] 4 wall elements
[0052] 5 Wall
[0053] 6 Joint socket
[0054] 7 bars
[0055] 8 Joint head
[0056] 9 Longitudinal axis
[0057] 10 threads
[0058] 11 Bridge
[0059] 12 Sliding surface
[0060] 13 Belleville washers
[0061] 14 lead
[0062] 15 wall mounting surface
[0063] 16 mounting frames
[0064] 17 Sanitary room
[0065] 18 Pretext
[0066] 19 cisterns
[0067] 20 Flushing fluid line
[0068] 21 Actuating element
[0069] 22 Wastewater pipe
[0070] 23 Front
[0071] 24 reverse
[0072] 25 Mounting opening
[0073] 26 Joint opening
[0074] 27 longitudinal mounting end 28 longitudinal hinge end
[0075] 29 Circular railway
[0076] 30° swivel range
[0077] 31 Central axis 32 Corner
[0078] Page 33
[0079] 34 edge
[0080] 35 Ball joint sliding surface
[0081] 36 Mounting bracket 37 Recess
[0082] 38 Circumferential area
[0083] 39 radius
[0084] 40 Center
[0085] 41 tilted state 42 support point
[0086] 43 Cover plate
[0087] 44 Top
[0088] 45 Barrier Bridge
Claims
Patent claims 1. Wall mounting device (1) for an installation element (2) for a sanitary installation (3), comprising at least: - a wall element (4) for attachment to a wall (5), wherein the wall element (4) comprises a hinge socket (6); and - a rod (7) with a ball joint (8) which is mounted in the socket joint (6) such that the rod (7) is pivotable relative to the wall element (4) about the ball joint (8), whereby a rotation of the rod (7) about its longitudinal axis (9) is prevented by a positive locking between the ball joint (8) and the socket joint (6).
2. Wall mounting device (1) according to claim 1, wherein the rod (7) has a thread (10).
3. Wall mounting device (1) according to one of the preceding claims, wherein the ball joint (8) is at least partially non-spherical.
4. Wall mounting device (1) according to one of the preceding claims, wherein the ball joint (8) is polygonal.
5. Wall mounting device (1) according to one of the preceding claims, wherein the joint socket (6) has a plurality of webs (11).
6. Wall mounting device (1) according to claim 5, wherein the webs (11) each have a concave sliding surface (12) for the ball joint (8).
7. Wall mounting device (1) according to one of the preceding claims, wherein a disc spring (13) holds the ball joint (8) in the ball joint socket (6).
8. Wall mounting device (1) according to claim 7, wherein the disc spring (13) is attached to the wall element (4) by a bayonet connection.
9. Wall mounting device (1) according to claim 7 or 8, wherein the disc spring (13) comprises at least one projection (14) that protrudes from a wall contact surface (15) of the wall element (4).
10. Installation element (2) for a sanitary installation (3), comprising at least: - a mounting frame (16) to which the sanitary installation (3) can be attached; and - at least one wall mounting device (1) according to one of the preceding claims.
Citation Information
Patent Citations
Joint with an internally arranged fluid line, double joint, sanitary arrangement and corresponding use
DE202022100877U1
Joining element
EP0731231B1
Self-aligning fastener system
EP0854965B1
Fixing set for fixing a mounting frame for sanitary objects and use of such a fixing set
EP3404153B1
Wall support
EP4067586A1