DE6930154U - SINGLE-PIECE ELASTIC SLEEVE - Google Patents

Description

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PA TENTAN WÄL TS

PATENT Attorney DIPL-ING. R. M O LLE R-BORN ER PATENTANWALT DIPL-ING. HANS-H. WEY

IBERLIN- DA HLEM 33. PODBIE LS Kl ALL E 68 8 MÖNCHEN 22 -WIDENM AY ERSTRASSE 49

TEL. 0311 762907 TELEGR. PROPINDUS TELEX 0184057 TEL 0811. 225585. TELEGR. PROPINDUS TELEX 0524244

21 986

George Moffat CUPIT Port Melbourne

One-piece elastic sleeve

The object of the innovation is a one-piece elastic sleeve for connecting two pipe ends, in particular of the flushing water connection nozzle or, if applicable, as Siphon-designed drain pipe of a toilet bowl with the pipe assigned to it.

At the flushing water connection piece of a toilet bowl is a connection with a to a cistern od. Like. leading pipeline required. The same is on Drain connection of a toilet bowl with a connection the pipe flange of a drain pipe required, which

usually made of cast iron, clay or plastic. In addition, some toilet bowls are provided with a suction opening, which with a suction pipe must be connected.

The known sleeves used for this purpose consist of two essentially axially parallel and annular sections connected to one another by a radially circumferential wall, one end of each of which the nozzle of the toilet bowl or the pipe associated therewith comprises liquid-tight.

The ring-shaped straight sections of the previously known sleeves are (ferart dimensioned that they have no play on the respective nozzle of the toilet bowl or can be pushed onto the pipe assigned to it, so that there is a liquid-tight connection between the toilet bowl and the respective pipe.

To ensure an effective seal, it is necessary to that the socket adapts to certain deviations from the nominal size of the connecting piece of the toilet bowl, since experience has shown that such deviations in the diameter in the manufacture of toilet bowls as have proven inevitable. However, it has been shown that the adaptation of the conventional sleeves to from the nominal size different nozzle causes considerable difficulties.

Ea η a major disadvantage of the previously known sleeves is that the deformation caused by a ring

30154

shaped section suffers when it is pushed onto the nozzle, through the circumferential connecting wall the other annular portion is transferred. This However, this effect causes difficulties in achieving an effective seal because of this deformation can assume such an extent that a tight fit of both annular sections on the connecting piece or is no longer guaranteed with certainty on the pipe assigned to this.

Often the toilet bowl is also offset or pivoted to the side with respect to the pipes assigned to it, d. h, from the angle, so that the annular sections of the sleeve after being pushed onto the connecting piece or on the tube are no longer arranged coaxially to one another as intended, and the deformation caused thereby the circumferential wall is transferred from one annular section to the other. This deformation can add to the deformation which the annular sections suffer when they pass over the pipe or the Nozzles are pushed, so that an effective sealing of the connection is made more difficult.

In addition to those caused by a lateral offset or pivoting of the toilet bowl in relation to the pipe connections Difficulties have also been found that another difficulty arises from the fact that the distance between aen connection piece of the toilet bowl and the pipes assigned to them as a result of a minor Movement of the building can change, making an effective seal even more difficult, and in the toilet bowl Stress cracks can be caused.

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In addition, it has been shown that excessive dehrmng and deforming the annular portions during the Sliding onto the connecting piece or the pipes either immediate destruction or completely results in a considerable reduction in the service life of the sleeve.

The main task of the innovation is therefore to create an improved socket for toilet bowl connections, which overcomes the difficulties mentioned and does not have the disadvantages of the previously known sleeves and despite low manufacturing costs and simple installation, a liquid-tight connection with the respective Pipelines guaranteed.

According to the innovation, this object is achieved in that the circumferential section connecting the two annular sections Wall is arranged essentially inclined to the axis of the two sections «,

The connecting wall can, for example, be in the form of a Have a truncated cone or a corrugated one or have an accordion-shaped cross-section.

The two annular sections are advantageous arranged coaxially, but they can also be offset from one another, with their axes either parallel or but can also be arranged inclined to one another.

An advantageous embodiment of the innovation according to the invention Socket is used to connect the drain socket of the toilet bowl with the flange of a drain pipe, the

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Splash of the drain pipe has a much larger diameter than the drain nozzle of the toilet bowl, This difference in diameter allows the two annular sections to be arranged in such a way that the one protrudes at least partially into the other ..

In another embodiment, which is used to connect the drainage port of a toilet bowl with a Tube of approximately the same diameter is used, the two annular sections do not overlap and the circumferential Wall connects the front end of one section with the end of the other facing this section Section, the section whose front end merges into the circumferential connecting wall is used, for receiving the drain pipe and the other annular section for receiving the drain connection of the toilet bowl,

Advantageously, the connecting wall is in this Embodiment formed by two coaxial truncated cones, which each at the narrower end with the corresponding annular section are connected. In addition to this special embodiment, there are also one Numerous other embodiments of the circumferential connecting wall applicable with equally good success, the cross section of which is two or more to the axis of the two annular sections inclined areas having.

All of these embodiments allow a certain amount of deformation or. Expansion of the connecting wall both in the axial and in the radial direction in order to

Exercise or pivoting of the to be connected Compensate parts without this deformation would be transferred to the annular sections, whereby the socket could leak.

To improve the sealing effect, one or both of the annular sections can be used be provided on the inside with circumferential ribs or a corrugation. This circumferential corrugation can for example have a sawtooth-like profile in cross section, the teeth from the plug-on opening of the Sections protrude backwards. This sawtooth-like corrugation has the consequence that the sleeve is light can be pushed onto the socket of the toilet bowl or onto the pipe, but not independently of itself this can solve.

Advantageously, one tapers or taper both ring-shaped sections are seen from the slip-on opening to the rear, then even one more to ensure a secure seal if the parts to be connected have a diameter somewhat from the nominal size differ.

If necessary, a hose clamp can be placed around the annular portion to increase the contact pressure ₀

Some embodiments of the socket according to the innovation are shown in the drawings and are described below explained in more detail. Show it:

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Fig. 1 shows an embodiment of the innovation Socket in the view or, in longitudinal section}

FIG. 2 shows a longitudinal section through the sleeve according to FIG. 1 in the operating state}

Fig. 3 shows another embodiment of the innovation according to the invention Socket in the view or in longitudinal section}

Fig. K shows a further embodiment of the socket according to the innovation in a view or in a longitudinal section}

Fig. 5 shows a further embodiment of the innovation according to the invention Socket in the view or in longitudinal section}

6 shows the sleeve according to FIG. 5 in the operating state in FIG View or in longitudinal section}

FIG. 7 shows a modification of the sleeve according to FIG. 5 in the view or in longitudinal section} and

8 shows a modification of the sleeve according to FIG. 7 in longitudinal section.

As can be seen from FIG. 1, the sleeve according to the invention consists of the inner annular section 1, which protrudes into one end of the outer annular section 2 and is arranged coaxially to it. The inner and outer ring-shaped sections 1 and 2 and the circumferential wall h connecting the two sections are made of rubber and are cast in one piece,

The connecting wall h extends from a region lying between the ends of the inner section 1 to the end of the outer section 2 projecting beyond the inner section. As the longitudinal section of the sleeve shows, the connecting wall k is to the axis of FIG annular sections 1, 2 inclined and represents a kind of truncated cone. Both the inner and the outer section are provided on the inside with a plurality of ribs 8, which cause a higher contact pressure when the socket on the pipe or on the socket the toilet bowl is pushed open, whereby the sealing effect is further increased.

The sleeve shown in FIG. 1 is particularly well suited for connecting the flushing water supply line to the flushing water connector of the toilet bowl, as shown in FIG. As can be seen from FIG. 2, the outer annular section 2 of the sleeve is considerably deformed by the flushing water connection piece 9 of the toilet bowl, but without this deformation being transferred to the inner annular section 1, which receives the flushing water pipe J.

In the embodiment shown in Fig. 3 of According to the innovation, the sleeve is the wall connected to the inner and outer annular sections 11 and 12, respectively 15 folded in the shape of an accordion, the height of the individual folds decreases from the inside out.

In this embodiment, as in the

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11 I · ·

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the inner annular section 11 shown in FIG. 1 partially covered by the outer annular portion 12, the connecting wall 15 of one between the ends of the inner annular portion 11 located area goes out and into the the inner portion 11 covering end of the outer section 12 passes over in the embodiment shown in FIG. The socket according to the innovation is only the inner surface of the inner annular section 11 with circumferential ribs 8 provided, the diameter of the inner section decreasing towards the rear as seen from the slip-on opening. If it should appear expedient, the inner surface of the outer ring-shaped one could of course also be used Section 12 are provided with circumferential ribs.

The exemplary embodiment of the sleeve according to the invention shown in FIG. K is constructed similarly to that according to FIG. 1, but with the wall 16 connecting the two sections starting from the end of the inner annular section 21. In this embodiment, both the inner and the outer annular section 21 and 22 are provided on the inside with circumferential ribs 8, but their spacing is greater than in the embodiment shown in FIG. The ribs can, for example, be arranged at the same distance as the ribs, which are usually arranged on the outside of the drain connection of the toilet bowl. The front end 20 of the outer annular section 22 is flared outwardly in a conical shape to simplify the sliding of the sleeve onto the drain pipe.

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The embodiments of the socket according to the invention shown in FIGS. 3 and k are particularly suitable for connecting the drain connection of the toilet bowl to the drain pipe.

Another embodiment of the socket according to the invention, which is also particularly well suited for the liquid-tight connection of the drain connection of the toilet bowl with the drain pipe, is shown in FIG. 5 and FIG. This sleeve is particularly advantageous because it is only very short, and creates the possibility that the drain nozzle of the toilet bowl protrudes into the mouth of the actual drain pipe. The inner annular section 31 and the outer annular section 32 are arranged concentrically and connected to one another at one end by the circumferential wall 27, which has a V-shaped profile. In this exemplary embodiment, too, the inner surfaces of the inner and outer annular section are provided with circumferential ribs 8. At the free end 29 of the inner annular section 31 its diameter is reduced in order to increase the contact pressure in this area when the inner annular section 31 is pushed onto the drain connection of the toilet bowl. As can be seen from FIG. 6 , if necessary, a metal hose clamp 2k can be placed around the outer annular section 32 in order to press it even more firmly against the drainage pipe 25.

The embodiment shown in Fig. 7 of the socket according to the innovation has two annular sections k-1 ,

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42 which do not overlap, d. H. in one certain axial distance are arranged from each other. The circumferential wall 45, which the annular sections 41 and 42 connects with each other, consists of two truncated cones 46, 47 »which have a common base exhibit. The truncated cone 47 is at its narrower one End connected to the front end of the section 42, while the truncated cone 46 with its narrower end is connected to the end of the section 41 facing the section 42 »This arrangement of the connecting wall has the consequence that the annular portion 42 is completely surrounded by this. In the operating state, the Drain nozzle of the toilet bowl from the annular Section 42 and the drain pipe from the annular Section 41 includes.

The flexibility of the sleeve and thus its ability to deal with minor deviations in the axis of the nozzle Balancing the toilet bowl and that of the pipe is increased by the even curvature with which the Truncated cone 47 in the front end of the annular section 42 passes. For the purpose of saving material, the thickness of the connecting wall 45 can be reduced and in the area in which the truncated cones 46, 47 butt against one another, ribs can be arranged on the inside thereof.

The one receiving the drain socket of the toilet bowl annular portion 42 decreases on the one hand in diameter from front to back, and on the other hand is his Inside provided with circumferential ribs 40 to the

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To increase the contact pressure on the nozzle and thus the sealing effect. The annular section kl is provided on the inside with only one circumferential shoulder kk serving as a stop for the drain pipe.

The advantage diases embodiment is that the sleeve can be pushed onto a smooth drain pipe and not st a conventional drain pipe with flared end is required i. Advantageously, similar to Pig. 6, a hose clamp is used to press the socket firmly against the drain pipe. This hose clamp can, however, be omitted if the annular section 4i is long enough to encompass the drainpipe with a frictional engagement in such a way that the sleeve is reliably prevented from sliding off the drainpipe,

FIG. 8 shows a modification of that shown in FIG Sleeve shown, which is particularly suitable for the connection of a horizontally arranged drainage nozzle a toilet bowl with a horizontally arranged drain pipe is suitable. With this form of connection in some countries the authority responsible for sanitary facilities required that the lower surface line the drain pipe and the drain socket of the toilet bowl are approximately at the same level. If the drain of the toilet bowl with a Drain pipe, which has a smaller diameter than this, is to be connected, the two must annular sections of the sleeve be offset from one another by an amount which is half the difference in diameter of the drainage connection and the drainage pipe.

The annular sections 50 and 5I and the circumferential In this exemplary embodiment, connecting wall 53 are arranged in a manner similar to that shown in FIG Embodiment.

The area 55 of the connecting wall is frustoconical educated. The area 56, on the other hand, has an asymmetrical one Shape to create a smooth transition between the two eccentrically arranged parts.

The annular section 51 is provided on its inside with a circumferential shoulder 58 which serves as a stop for the drain pipe. Likewise, the annular section 50 is provided at its rear end with a circumferential shoulder 59 serving as a stop. The section 50 is conical, so that its wall 60 is pressed outwards when it is pushed onto the drain connection of the toilet bowl, and the flange 61 forming the stop 59 rests against the inside of the connecting wall 53. This prevents debris from collecting in the annular chamber formed by the annular section 50 and by the frustoconical region 55 of the connection wall 53. On the inside, the annular section 50 is provided with circumferential ribs 62 which fulfill the same purpose as the ribs 8 already described. The ribs 62, however, have a sawtooth-like profile, with the flatter flanks of the ribs facing the socket opening, so that the annular section 50 can be pushed onto the drain connection of the toilet bowl but cannot be released from it by itself. Of course, instead of the sawtooth type

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For ribs, any other rib shape can be used with success, such as those in connection with the preceding ones Embodiments of the socket according to the innovation is described. It should be noted that with the The embodiment shown in FIG. 8 shows the lower surface line of the drain pipe and that of the drain connection the toilet bowl are arranged substantially at the same level, with the axis of the annular portion 51 vertically below the axis of the annular section 50 comes to rest.

Claims (1)

• · · »ν Protection claims 1. One-piece elastic sleeve for connecting two pipe ends, in particular the flushing water connection pipe or the drain pipe of a toilet bowl, which may be designed as a siphon, with the pipe assigned to it, consisting of two essentially axially parallel and connected to one another by a radially circumferential wall ring-shaped sections, one end of which encompasses the nozzle or the pipe in a liquid-tight manner, characterized in that the connecting wall ( k, 1 5 , 1 6, 27, ^ -5 »53) is arranged essentially inclined to the axis of the two sections. 2. Sleeve according to claim 1, characterized in that the one annular portion (1,11,21,31) at least partially protrudes into the other annular section (2,12,22,32). 3 · Socket according to claim 2, characterized in that the connecting wall (h or I5) has an area located between the ends of the inner section (1 or 11) with the end of the outer section (2 or 12) covering this end. connects. k . Sleeve according to claim 2, characterized in that the circumferential wall (16) connects the end of the outer section (22) with the end of the inner section (21) protruding into it. 30154 ti fffl 5. Sleeve according to claim 2, characterized in that the one annular section (31) almost completely protrudes into the other (32) and the circumferential Wall (27) one end of the inner section (31) with the end of the facing this outer section (32) connects. 6. Sleeve according to claim 5 »characterized in that the end of the inner portion (31) with the
The circumferential wall (27) connecting the end of the outer section (32) has a V-shaped profile. 7. Sleeve according to claim 1, characterized in that the two annular sections (kl _t k2 or 50, 51) do not overlap and the circumferential wall (^ 5 or 53) the front end of one section (k2 or 50 ) connects to the end of the other section (41 or 5I) facing this section. 8. Sleeve according to claim 7 »characterized in that one of the annular sections {kZ or 50)
is dimensioned such that it can be pushed onto the drain socket of the toilet bowl. 9. Sleeve according to claim 8, characterized in that the axes of the two annular sections (41,42 or 50,51) arranged essentially axially parallel are. 10. sleeve according to claim 9 »characterized in that the axes of the annular sections (50,51) are offset from one another by an amount which is approximately half the difference in the inner diameter of the drain pipe of the toilet bowl and the drain pipe corresponds. 11. Sleeve according to one of claims 7 to 9 »characterized in that that the connecting wall (A-5) consists of two coaxial truncated cones (46,47), which respectively are connected at the narrower end to the corresponding annular section (41,42). 12. Sleeve according to one of claims 1 to 11, characterized in that that at least one of the annular sections on the inside with a plurality radially circumferential ribs (8,40,62) is provided. 13. Sleeve according to claim 12, characterized in that the annular section provided with radially circumferential ribs is seen from the plug-on opening conically tapered towards the rear.