EP1848315A1

EP1848315A1 - Fixing device

Info

Publication number: EP1848315A1
Application number: EP06722478A
Authority: EP
Inventors: Peter Hamberger
Original assignee: Hamberger Industriewerke GmbH
Current assignee: Hamberger Industriewerke GmbH
Priority date: 2005-02-14
Filing date: 2006-02-14
Publication date: 2007-10-31
Also published as: DE102005014185B4; DE102005014185A1; WO2006084458A1

Abstract

The invention relates to a fixing device for fixing a WC seat fitting to a ceramic component, said fitting comprising a fixing adapter that can be fastened on the ceramic component and a hinge pin that is connected to said adapter for holding and releasing a WC seat hinge that bears the WC seat fitting. The invention also relates to a method for producing said fixing device. According to the invention, the fixing adapter and the ceramic component are connected by means of a bonding mass.

Description

description

Fastening device

The invention relates to a fastening device for fastening a toilet seat set to a ceramic according to the preamble of patent claim 1 and a method for producing such a fastening device according to the preamble of patent claim 19.

Fastening devices of this type are used to hold toilet seat joints on a ceramic, the toilet seat joints allowing pivoting of the toilet seat set lying on the peripheral edge of the ceramic, consisting of toilet seat and toilet lid.

A fastening device for a toilet seat joint is known, for example, from DE 102 33 733 A1 by the applicant. In this solution, the fastening device is connected to the ceramic by screwing. For this purpose, the fastening device has a base plate lying on the ceramic, to which a threaded pin is fastened, which penetrates a through-hole in the ceramic. A counter nut is screwed onto the end section of the threaded pin protruding from the ceramic, so that it comes into contact with a lower contact surface of the ceramic. By sufficiently tightening the lock nut, the base plate and thus the fastening device on the ceramic are fixed. The toilet seat joint is then placed on the fastening device via a hinge pin arranged on the base plate and the toilet seat set is thereby pivotally held on the peripheral edge of the ceramic. A disadvantage of the solution described above is that a considerable outlay in terms of device technology is required to form the screw connection of the fastening device. Another disadvantage is that the mounting of the fastening device on the ceramic is very cumbersome due to the screw connection which is difficult to access, and it has areas which are difficult to access and which are difficult or impossible to clean.

In contrast, the invention has for its object to provide a fastening device and a method for its production, in which a simple assembly on the ceramic with minimal expenditure on device technology and improved protection against contamination is possible.

This object is achieved with regard to the fastening device by the features of patent claim 1 and with regard to the method for producing such a fastening device by the features of patent claim 19.

The fastening device according to the invention has a fastening adapter which can be fixed on a ceramic and a hinge pin connected thereto for detachably receiving a WC seat joint which carries the toilet seat set. According to the invention, the fastening adapter and the ceramic are connected by means of a connecting compound. The connecting mass takes over the mechanical fixation of the fastening device on the ceramic, so that a screw connection, as is required in a solution according to DE 102 33 733 Al, can be dispensed with and, on the other hand, the outlay in terms of device and assembly technology is significantly reduced. According to the invention compared to a fastening device Screw connection significantly reduces the susceptibility to contamination since areas that are difficult to access are avoided. The manufacture of the fastening device is also significantly simplified in comparison to the generic method, since the separate work steps for forming the screw connection can be omitted.

An adhesive is preferably used as the connecting compound, which is introduced into an adhesive space delimited at least in sections by the fastening adapter and the ceramic. For example, a 1- or 2-component adhesive system can be used as the adhesive.

In the case of ceramics without a bore, the fastening adapter can be substantially plate-shaped, the adhesive space being delimited by a circumferential wall of the fastening adapter lying against the ceramic and an adhesive surface.

According to a further exemplary embodiment of the invention for ceramics with a receiving bore, the fastening adapter is designed in steps, dips into the receiving bore of the ceramic with a fastening section and is fixed there.

The fastening section preferably has at least two axially spaced guide sections which abut an inner circumferential wall of the receiving bore of the ceramic and thereby limit the adhesive space.

To limit the immersion depth when inserting the fastening adapter into the mounting hole, at least one limiting element is preferably provided on the fastening adapter. The limiting element is preferably designed as a radial collar, which has an enlarged outer diameter in relation to the receiving bore and can be brought into contact with the ceramic.

It has proven to be particularly advantageous if the hinge mandrel is arranged coaxially with the fastening adapter. As a result, in particular due to the advantageous introduction of force into the fastening adapter, a high strength of the connection of the fastening adapter and ceramic is achieved.

The hinge pin is preferably interchangeably connected to the mounting adapter. Due to the hinge pin detachably connected to the fastening adapter, it can be easily replaced in the event of wear, for example in the event of corrosion or in the case of a toilet seat set with a different pivot point. Furthermore, the hinge pin can be replaced to adapt to different mounting systems of the toilet seat joints.

The hinge mandrel preferably has at least one mounting hole on the end face, in particular a blind hole, for mounting the hinge mandrel on the fastening adapter.

To mount the hinge mandrel on the fastening adapter, an end section of the fastening adapter plunges into the mounting hole of the hinge mandrel and can be fixed there.

The end section of the fastening adapter is preferably designed, at least in sections, as a screw-in projection which can be brought into threaded engagement with a threaded section of the mounting bore of the hinge mandrel. In a preferred exemplary embodiment, the fastening adapter is encompassed at least in sections by a cover which can be fixed between the fastening adapter and the hinge pin.

It has proven to be particularly advantageous to interchangeably arrange the cover on the fastening adapter. As a result, the cover is replaceable in the event of wear or to adapt to the look or shape of the ceramic or the toilet seat set and also meets high aesthetic standards.

The cover preferably has a wall section penetrated by the screw-in projection of the fastening adapter, which is supported on a contact surface of the fastening adapter and is axially fixed by means of an annular surface of the hinge mandrel.

A peripheral collar of the cover preferably encompasses a peripheral wall of the fastening adapter and can be brought into contact with the ceramic on the bottom side. This avoids poorly accessible areas where dirt can accumulate.

The scope of protection of claim 1 also includes solutions in which the hinge pin, the fastening adapter and / or the cover are formed in one piece as a special component.

In a preferred embodiment, the hinge mandrel has at least one holding device, in particular a spring ring, for releasably holding the toilet seat joint and / or at least one sealing ring, in particular an O-ring for sealing against environmental influences. This allows the entire toilet seat set, Pull off the fastening device very quickly with minimal effort, so that quick and thorough cleaning is guaranteed (take-off function). The sealing ring prevents dirt from entering the recess of the toilet hinge joint and thus facilitates the assembly and disassembly of the toilet seat set.

The fastening adapter, the cover and / or the hinge mandrel are preferably made from a corrosion-resistant material, in particular from stainless steel.

A method according to the invention for producing such a fastening device is carried out with the steps:

a) applying the bonding compound to an adhesive surface;

b) placing the mounting adapter on the ceramic or inserting the mounting adapter in a receiving hole in the ceramic and

c) curing the connecting compound.

After the connecting compound has hardened, the cover is preferably pushed onto the fastening adapter, the hinge pin is screwed on and the cover is thereby fixed in position.

Other advantageous developments of the invention are the subject of the further subclaims.

Preferred exemplary embodiments of the invention are explained in more detail below with the aid of schematic drawings. Show it: Figure 1 is a three-dimensional representation of a first embodiment of a fastening device according to the invention;

FIG. 2 shows a three-dimensional sectional view of the fastening device from FIG. 1;

3 shows a further three-dimensional representation of the fastening device from FIG. 2 and

Figure 4 is a three-dimensional sectional view according to a second embodiment of a fastening device according to the invention.

A first exemplary embodiment of a fastening device according to the invention, which is particularly suitable for mounting on a hole-free ceramic, is explained with reference to FIGS. 1 to 3.

FIG. 1 shows a three-dimensional representation of a fastening device 1, which is used for the releasable mounting of a toilet seat joint 2 on a ceramic 4 indicated by dash-dotted lines. The toilet seat joint 2 enables pivoting of the toilet seat set lying on the peripheral edge of the ceramic 4, consisting of a toilet seat and toilet lid (not shown).

According to FIG. 2, which shows a three-dimensional sectional view of the fastening device 1 from FIG. 1, it has a fastening adapter 6 that can be fixed on the ceramic 4 and a hinge pin 8 screwed to the ceramic 4 for releasably receiving the toilet seat joint 2 (see FIG. 1). To mount the essentially pin-shaped hinge mandrel 8 on the fastening adapter 6, an end section 10 of the fastening adapter 6 is immersed an end blind bore 12 of the hinge pin 8 and is screwed there. For this purpose, the end section 10 of the fastening adapter 6 is designed in sections as a screw-in projection 14 which can be brought into threaded engagement with a threaded section 16 of the blind hole 12 of the hinge pin 8. On an upper end section 18 of the hinge mandrel 8, an internal hexagon 20 is formed for attaching a fastening tool. As a result, screwing on the hinge mandrel 8 on the fastening adapter 6 is made considerably easier. Due to the hinge pin 8 releasably connected to the fastening adapter 6, it can be easily replaced in the event of wear or to adapt to toilet seat sets with a different pivot point height. Furthermore, the hinge pin 8 can be replaced in adaptation to different mounting systems of the toilet seat joints 2.

The mounting adapter 6 is partially encompassed by a plate-shaped cover 22 which can be fixed between the mounting adapter β and the hinge pin 8. For this purpose, the cover 22 has a wall section 24 penetrated centrally by the screw-in projection 14 of the fastening adapter 6, which is supported on a contact surface 26 of the fastening adapter 6 and is axially fixed by means of an annular end face 28 of the hinge mandrel 8, in other words, the hinge mandrel 8 can be adjusted as far as possible screw on the fastening adapter 6 so that the ring end face 28 comes into contact with an end face 30 of the cover 22 and clamps it. In this clamping position, a circumferential collar 32 of the cover 22 encompasses a circumferential wall 34 of the fastening adapter 6 and is brought into abutment with a surface 36 of the ceramic 4 (dash-dotted lines in FIG. 2). As a result, the fastening device 1 forms a compact unit that is also high aesthetic demands are sufficient. Furthermore, areas 22 on which dirt can accumulate are avoided by the cover 22. The cover 22 is in the event of wear or for optical adaptation of the fastening device 1 to different ceramics 4 or. Toilet seat sets are interchangeable and therefore also meet high aesthetic standards.

According to the invention, the fastening adapter 6 and the ceramic 4 are connected by means of a connecting compound 38. This takes over the mechanical fixing of the fastening device 1 on the ceramic 4, so that it is not necessary to screw the fastening device 1 to the ceramic 4, as is required in a solution according to DE 102 33 733 A1. Since the separate work steps for forming the screw connection can be omitted, the outlay in terms of device technology for producing the fastening device 1 is considerably simplified in comparison with the methods of the generic type. Furthermore, compared to a solution with a screw connection, the mounting of the fastening device 1 on the ceramic 4 is simplified and the susceptibility to contamination is considerably reduced, since areas which are difficult to access are avoided. According to FIG. 2, an adhesive, for example a two-component adhesive, is used as the connecting compound 38, which is introduced into an adhesive space 42 delimited by the peripheral wall 34 and an adhesive surface 40 of the fastening adapter 6 with the ceramic 4. Due to the peripheral wall 34 of the fastening adapter 6, the adhesive surface 40 is opposite the surface 36 of the ceramic 4 by a defined distance A, for example by approx. 1 mm reset. This achieves an optimal distribution of the bonding compound 38 on the adhesive surface 40 and forms a defined layer thickness. The distance A between the adhesive surface 40 and the ceramic 4 and thus the The layer thickness of the connecting compound 38 is selected in such a way that the adhesive has a defined elasticity and therefore also withstands high mechanical loads.

As can be seen in particular in FIG. 3, which shows a further three-dimensional representation of the fastening device 1 from FIG. 2, the adhesive surface 40 of the fastening adapter 6 can be smooth due to the high bonding force of the adhesive 38 (see FIG. 2). H . be designed without ribs or the like and thereby enables easy-to-manufacture shaping of the fastening adapter 6.

FIG. 4 shows a three-dimensional sectional view of the fastening device 1 according to the invention in accordance with a second exemplary embodiment, which is suitable for mounting on a ceramic 4 with a bore 46. The hole 46 in the ceramic 4 can be designed as a through hole or blind hole.

According to FIG. 4, the essentially cylindrical fastening adapter 6 is designed in a stepped manner and dips with a fastening section 44 into a receiving bore 46 in the ceramic 4. To limit the immersion depth of the fastening adapter 6 in the receiving bore 46 of the ceramic 4, a radial collar 48 is formed on the fastening adapter 6. Compared to the diameter d of the receiving bore 46, this has an enlarged outer diameter D, which is set back relative to the peripheral collar 32 of the cover 22. The radial collar 48 is placed over an annular ^combustion surface 50 into engagement with the surface 36 of the ceramic 4, thereby limiting the insertion depth of the mounting adapter 6 in the receiving bore 46. The underlying peripheral edge 52 of the mounting adapter 6 is provided with a chamfer 54, the insertion of the of Mounting adapter 6 in the receiving bore 46 of the ceramic 4 facilitated. According to the invention, the fastening section 44 is fixed in the receiving bore 46 of the ceramic 4 via an adhesive connection. For this purpose, two axially spaced guide sections 56, 58 are formed on the fastening section 44, their outer circumferential surfaces 60, 62 abutting an inner circumferential wall 64 of the receiving bore 46 and guiding the fastening adapter 6 in the receiving bore 46. The guide sections 56, 58 have two mutually parallel ring surfaces 66, 68 which delimit a radially recessed adhesive surface 70. The annular surfaces 66, 68 form an approximately pocket-shaped adhesive space 72 with the adhesive surface 70 and the inner peripheral wall 64 of the receiving bore 46. By means of adhesive 38 (not shown) introduced into the adhesive space 72, the fastening section 44 and thus the fastening adapter 6 are fixed in the receiving bore 46 of the ceramic 4.

As can be seen in particular from FIGS. 2 and 4, the locking between the hinge pin 8 and the toilet seat joint 2 (see FIG. 1) takes place via a snap connection 74, which is formed, for example, by a spring ring 76 which is in an annular groove 78 on the outer circumference 80 of the hinge pin 8 is inserted. The hinge pin 8 dips with its upper end section 18 into a receptacle (not shown) of the toilet seat joint 2 (see FIG. 1) and is fixed there by means of the spring ring 76. For this purpose, the spring ring 76 engages in the assembled state of the toilet seat joint 2 in a recess, not shown, in the inner peripheral wall of the receptacle of the toilet seat joint 2. As a result, the entire toilet seat set can be removed from the fastening device 1 very quickly and with minimal effort, so that quick and thorough cleaning is ensured (take-off function). For better sealing and to improve the clamping Effect is provided below the spring ring 76 in an additional annular groove 84 in an O-ring 86, so that no dirt can enter the receptacle of the toilet seat joint 2. The upper peripheral edge of the hinge pin 8 is provided with a chamfer 88, which facilitates the insertion of the hinge pin 8 into the receptacle of the toilet seat joint 2.

In the illustrated embodiments, the mounting adapter 6, the cover 22 and the hinge 8 made of stainless steel mandrel are ^'prepared. In simpler versions, all or some of these components can also be made of plastic.

The fastening device 1 according to the invention is not limited to the embodiments explained in more detail above with fabricated structure, but rather the mounting adapter 6, the hinge mandrel 8 and / or the cover may be ^• 22 integrally formed as a special component.

In the following, the assembly of the fastening device 1 on the ceramic 4 is explained by way of example with reference to FIGS. 2 and 4.

The assembly is essentially the same in the two exemplary embodiments described above. In a first operation, the adhesive 38 is applied, for example in the form of drops, to the adhesive surface 40, 70 of the fastening adapter 6. In the exemplary embodiment according to FIGS. 1 to 3, the fastening adapter 6 is then placed on the hole-free ceramic 4 and the adhesive 38 is cured. In the exemplary embodiment according to FIG. 4, the fastening adapter 6 is inserted into the receiving bore 46 of the ceramic 4 via the fastening section 44 and then the adhesive 38 hardened . After the adhesive 38 has hardened, the cover 22 is pushed onto the fastening adapter 6, the hinge mandrel 8 is screwed on, and the cover 22 is clamped between the ring end face 28 of the hinge mandrel 8 and the contact surface 26 of the fastening adapter 6 and thereby fixed in position. Alternatively, the cover 22 and the hinge mandrel 8 can also be mounted on the ceramic 4 before the fastening adapter 6 is glued to it, and the preassembled unit comprising the hinge mandrel 8, the cover 22 and the fastening adapter 6 can then be glued to the ceramic 4.

The inventive design of the fastening device 1 ensures a reliable fixation of the toilet seat joint 2 on the ceramic 4 with a device and assembly effort which is considerably reduced compared to conventional solutions.

Disclosed is a fastening device 1 for fastening a toilet seat set to a ceramic 4, with a fixing adapter 6 which can be fixed on the ceramic 4 and a hinge pin 8 connected thereto for detachably receiving a toilet seat joint 2 which carries the toilet seat set, and a method for producing the same the fastening device 1. According to the invention, the fastening adapter 6 and the ceramic 4 are connected by means of a connecting compound 38. Reference symbol list

1 fastening device

2 toilet seat joint

4 ceramics

6 mounting adapters

8 hinge pin

10 end section (fastening adapter)

12 blind hole

14 Screen robbery

16 threaded section

18 upper end section (hinge pin)

20 hexagon socket

22 cover

24 wall section

26 contact surface

28 ring face

30 end face

32 circumferential band

34 peripheral wall

36 surface

38 connecting mass

40 adhesive surfaces

42 adhesive room

44 fastening section

46 Location hole

48 radial collar

50 ring area

52 peripheral edge

54 chamfer

56 guide section

58 guide section

60 outer peripheral surface

62 outer peripheral surface

64 inner circumferential wall

66 ring surface Ring surface

Adhesive surface

Glue space

Snap connection

Spring washer

Ring groove

Outer circumference

admission

Ring groove

O-ring

chamfer

Claims

Expectations

1. Fastening device for fastening a toilet seat set to a ceramic (4), with a fixing adapter (6) which can be fixed on the ceramic (4) and a hinge pin (8) connected to this for detachably receiving a toilet seat set bearing the toilet seat set (2), characterized in that the fastening adapter (6) and the ceramic (4) are connected by means of a connecting compound (38).

2. Fastening device according to claim 1, wherein the connecting compound (38) is an adhesive which is introduced into an adhesive space (42, 72) delimited at least in sections by the fastening adapter (6) and the ceramic (4).

3. Fastening device according to claim 2, wherein the fastening adapter (6) is substantially plate-shaped and the adhesive space (42) is delimited by a circumferential wall (34) of the fastening adapter (6) lying against the ceramic (4) and an adhesive surface (40) .

4. Fastening device according to one of claims 1 or 2, wherein the fastening adapter (6) is designed stepped and with a fastening section (44) dips into a receiving bore (46) of the ceramic (4) and is fixed there.

5. Fastening device according to claim 4, wherein the fastening section (44) has at least two axially spaced guide sections (56, 58) which bear against an inner circumferential wall (64) of the receiving bore (46) and thereby limit the adhesive space (72).

6. Fastening device according to one of claims 4 or 5, with at least one limiting element (48) for limiting the immersion depth (t) of the fastening adapter (6) in the receiving bore (46) of the ceramic (4).

7. Fastening device according to claim 6, wherein the limiting element (48) is designed as a radial collar which has an enlarged outer diameter (D) relative to the receiving bore (46) and can be brought into contact with the ceramic (4).

8. Fastening device according to one of the preceding claims, wherein the hinge mandrel (8) is arranged coaxially to the fastening adapter (6).

9. Fastening device according to one of the preceding claims, wherein the hinge pin (8) is replaceably connected to the fastening adapter (6).

10. Fastening device according to claim 8 or 9, wherein the hinge mandrel (8) has at least one end mounting hole (12), preferably a blind hole, for mounting the hinge mandrel (8) on the fastening adapter (6).

11. Fastening device according to claim 10, wherein an end portion (10) of the fastening adapter (6) dips into the mounting hole (12) of the hinge mandrel (8) and can be fixed there.

12. Fastening device according to claim 11, wherein the end section (10) of the fastening adapter (6) is formed at least in sections as a screw-in projection (14) which is in threaded engagement with a threaded ab- Cut (16) of the mounting hole (12) of the hinge pin (8) can be brought.

13. Fastening device according to one of the preceding claims, with a cover (22) which engages around the fastening adapter (6) at least in sections and can be fixed between the fastening adapter (6) and the hinge pin (8).

14. Fastening device according to claim 13, wherein the cover (22) is interchangeably arranged on the fastening adapter (6).

15. Fastening device according to claim 13 or 14, wherein the cover (22) has a through the screw-in projection (14) of the fastening adapter (6) penetrated wall section (24), which is supported on a contact surface (26) of the fastening adapter (6) and by means of a Annular surface (28) of the hinge mandrel (8) is axially fixed.

16. Fastening device according to one of claims 13 to 15, wherein a circumferential collar (32) of the cover (22) encompasses a peripheral wall (34) of the fastening adapter (6) and can be brought into contact with the ceramic (4) on the bottom side.

17. Fastening device according to one of the preceding claims, wherein the hinge mandrel (8) at least one holding device (74), in particular a spring ring (76), for releasably holding the toilet seat joint (2) and / or at least one sealing ring (86), in particular has an O-ring for sealing.

18. Fastening device according to one of the preceding claims, wherein the fastening adapter (6), the Cover (22) and / or the hinge pin (8) are made of a corrosion-resistant material, preferably stainless steel.

19. Fastening device according to one of the preceding claims, wherein the fastening adapter (6), the hinge pin (8) and / or the cover (22) are integrally formed.

20. Method for producing a fastening device (1) with at least one fastening adapter (6) which can be fixed on the ceramic (4) and a hinge pin (8) connected to the latter, the fastening adapter (6) and the ceramic (4) being connected via a connecting compound ( 38), in particular connected according to one of the preceding claims, with the steps:

a) applying the compound (38) to the adhesive surface (40, 70);

b) placing the fastening adapter (6) on the ceramic (4) or inserting the fastening adapter (6) into a receiving bore (46) of the ceramic (4);

c) curing the connecting compound (38).

21. A method for producing a fastening device according to claim 20, wherein after the hardening of the connecting compound (38), the cover (22) is pushed onto the fastening adapter (6) and is fixed in position by screwing on the hinge mandrel (8).