Device for fixing cover elements to sanitary appliances, particularly water closet pans

Abstract: A device for fixing cover elements to sanitary appliances comprises at least two elastomer bushes (6), each disposed between an upper disc (10) and a lower deformation ring (8), into said ring there being screwed the threaded shank (12) of a rod (11) having a widened upper portion (13) which rests against the disc (10). On the portion (13) there is mounted a corresponding bracket (17), into the cavity of which there passes a threaded locking setscrew (16), the pointed end of which is received in a groove (15) provided on the portion (13).

Description: This invention relates to a device for fixing cover elements to sanitary appliances in general, such as water closet pans or bidets. In particular, the invention is convenient for fixing the corresponding seat-lid units to water closet pans. As is well known, said two accessories are hinged at their rear to the corresponding appliance so that they can be swivelled in the vertical plane of symmetry of this latter to occupy two opposing positions, namely raised and lowered. The support and hinge pins for said seat and lid are provided by well known fixing systems comprising two opposing devices of substantially clamp formation. Specifically, said clamp devices comprise a threaded shank which is inserted into a hole provided in a rear edge of the corresponding water closet pan and is provided above and below said ledge respectively with a seat for hinging the corresponding lid-seat unit and with a female fixing element, such as a wing nut, for tightening the clamp device against the ledge. Such a device for fixing cover elements to sanitary appliances, is described in GB-A-2060019. However, such known systems have proved inconvenient because the assembly, removal and possible adjustment of said clamp devices involves working in hidden regions which are sometimes of difficult access, so making said operations particularly uncomfortable and relatively lengthy and complicated. In this respect, the fixing and removal of said clamp devices involves working below said ledge, which is particularly inconvenient if deposits and/or incrustations have formed on the lower end of the clamp devices, for example due to the usual detergents used for cleaning the corresponding pan. This problem has been solved in US-A-3551922, which corresponds to the preamble of claim 1. The fastening means described in this closest prior art, necessitates the use of a concealing plate to enhance the cleanliness of the hinge post. The main object of the present invention is to provide a connection device which obviates the aforesaid by means of a simple and rational structure. According to the invention, this object is solved by the characterising portion of claim 1. In order to connect a cover element such as a lid-seat unit to the holes provided in the rear part of a sanitary appliance such as a water closet pan, there are provided two opposing supports each of which comprises an elastically deformable bush able to be inserted from above into one of said holes, and a rod to be inserted into said bush, also from above, and provided with a lower threaded portion to be screwed into a deformation ring associated with said bush, and further each support comprises an upper seat for the fixing of a support/hinging member for said unit. Said deformation ring is preferably embedded in the bush, which widens transversely when the threaded portion is screwed into the ring, with simultaneous fixing of said rod in said hole. By virtue of the aforesaid means all the objects of the invention are attained in that all the work involved in mounting and/or removing the device can be done from above the pan, and thus in a comfortable position. These and further merits and characteristics of the invention will be apparent from the detailed description given hereinafter with reference to the accompanying drawing in which: Figure 1 is a section on the line I-I of Figure 2 to an enlarged scale; Figure 2 is a plan view of the preceding figure; Figure 3 is an exploded sectional view of the connection unit shown in Figure 1; Figure 4 is a section on the line IV-IV of Figure 2. Said figures, and in particular Figure 1, show a water closet pan 1, which is represented only partly because the characterising elements of the invention are totally applicable to pans of different configurations and dimensions. With said pan 1 there are associated a seat 2 and an overlying lid 3, which will not be described in detail, and which are fixed to the pan 1 as stated hereinafter. The pan 1 is provided at its rear with a practically horizontal ledge 4 containing two orthogonal through holes 5 symmetrically disposed about the vertical plane of symmetry of the pan 1. Into each hole 5 there is inserted, practically as a tight fit, an elastically deformable bush 6 constructed for example of rubber, which is provided upperly with a circumferential rim 7. As can be seen in Figure 1 said bush 6 has a length greater than the thickness of the ledge 4 and carries embedded in its lower part an internally threaded coaxial metal ring 8. This can also be seen in Figure 3. The rim 7 is received in a circular recess 9 (Figures 1, 3) of depth less than the thickness of said rim, and provided in a centrally holed disc 10. This latter rests on the ledge 4, against which said rim 7 is clamped. This is done by means of a locking rod 11 comprising a threaded shank 12 screwed into the ring 8 and an upper greater-diameter portion 13 defining a shoulder which bears against the disc 10. The reference numeral 66 indicates the deformed position (indicated by dashed and dotted lines in Figure 1) of the bush 6 after the rod 11 has been screwed in. For screwing purposes the head of this latter is provided with a seat 14 for a tool, and which in the illustrated case is a diametrical slot for a screwdriver. In addition, the upper terminal part of the portion 13 is provided with a circumferential groove 15 of triangular cross-section to act as the engagement seat for the pointed end of a headless screw or setscrew 16 (see Figure 4). In the illustrated case (see Figure 3), said setscrew has a sunken hexagonal seat for a key. Said setscrew 16 is screwed into a corresponding transverse threaded bore provided in a bracket 17 (see Figures 2, 4), this latter being provided with a recess 33 having different cross-sections the purpose of which is to contain, and thus mask, the disc 10 and the portion 13 of the rod 11. The threaded bores for said setscrews 16 are provided particularly in facing regions of the brackets 17 (see Figure 2). In addition, said two brackets 17 are curved towards the front of the pan 1, where they form respective bearings 18 for supporting a hollow cylindrical bar 19 forming the shaft about which said seat 2 and lid 3 swivel. Finally, the opposing ends of the bar 19 extend beyond the brackets 17 to each receive a sleeve 20 and cap 21. These latter are associated with respective fixing plates 22 and 23 which are fixed by self-tapping screws 24 to the underside of the rear edges of the lid 3 and seat 2 respectively. The merits and advantages of the invention are apparent from the aforegoing description and from an examination of the accompanying figures.

Claims: A device for fixing cover elements to sanitary appliances as water closet bowls or bidet, comprising a bracket (17) with a cavity (33), a rod (11) with a threaded shank (12) and a widened upper portion (13) fixed at one end to the sanitary appliance and having at the opposite end a seat for receiving releasably locking means of the brackets of the cover element, comprising at least two elastomer bushes (6), each disposed between an upper disc (10) and a lower deformation ring (8) into which there is screwed the threaded shank (12) of a rod (11), characterised by the fact that the widened upper portion (13) of the threaded shank (12) abuts directly against the upper disc (10), said widened upper portion (13) being provided with an annular tapered groove (15) arranged in a circumferential way with respect to the longitudinal axis of the rod (11) and arranged to receive the pointed end of a threaded locking set screw (16) passing into the cylindrical cavity (33) of the bracket (17), which is mounted on top of said widened upper portion (13) said cavity being provided to receive the widened upper portion (13) of the rod (11) and the upper disc 10. A device as claimed in claim 1 characterised in that said deformation ring (8) is embedded in the lower end of said bush (6). A device as claimed in claim 1 characterised in that a seat (14) for a tool is provided on the top of said rod 11. A device as claimed in claim 1, characterised in that the bush (6) has an upper circumferential rim (7) which is received in a corresponding recess (9) of the disc (10), being the axial dimension of said cavity lower that the axial dimension of the said rim.

Inventors: FAIT CLAUDIO, FAIT, CLAUDIO
Applicants: IDEAL STANDARD SPA, IDEAL STANDARD S.P.A.
Application year: 1989
Main classification: A47K13
IPC codes: A47K13