DE9416471U1 - Downpipe connector - Google Patents

Description

PATENT ATTORNEYS !File number? · ;.·..;;.·.

CONRAD KOCHLlNG «&ngr;«·_ -,:*.·«·_ _&Lgr; .·_"&Ggr;

DlPL-ING. CON RAD-JOACHIM KOCH LI NG Note: Wilhelm Manz

Fleyer Straße 135, W-5800Hagen1 _p ^m ', . °' , *

Call(02331)81164 + 85033 lieWer De &Ggr; ing I

Fax (02331) 848 40

Telegrams: Patentköohling Hagen _ _ ,. „ ,_ ., ^. ^ _ ... - Accounts: Gommerzbank AG, Hagen351S095 (BLZ45040042) ^U ^ ⁰ ^'^ ü Cha llCSmuh 1 &bgr; Sparkasse Hagen 100012043 (bank code 45050001) Postgiro: Dortmund 5989-460 (bank code 44010046) ______________

58 51
VNR:

11583/94

Serial No.

12 October 1994

from the

CJK/Hi.

Downpipe connector

The invention relates to a downpipe connector for connecting pipes without sockets, consisting of a one-piece open pipe clamp made of metal, optionally with an elastic sealing insert, on one end of which a part of a clamping element is arranged radially on the outside and on the other end of which a further part of the clamping element is arranged radially on the outside at a distance from the end edge, by means of which the clamp can be tightened tightly with overlapping ends, wherein the clamping element essentially consists of a clamping nut and a clamping screw.

Such downpipe connectors are widely known in the state of the art. In the downpipe connectors that have been used up to now, a bracket is welded onto each end of the pipe clamp. A screw nut is inserted into one bracket, which is also

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is guided. A guide element for a clamping screw is arranged and guided in the other bracket. When assembling the downpipe connector, the corresponding pipe clamp is bent open and arranged around the corresponding downpipe at the connection point. The fitter must then arrange the nut part and the guide part in the bracket-like projections of the clamp, insert the clamping screw and screw it into the thread formation. The clamping screw can then be turned with a tool to tighten the pipe clamp at the connection point. The loose arrangement of the thread and guide parts is disadvantageous because these elements can easily get lost during assembly, which means considerable effort for the fitter, since such fastening arrangements are often carried out at great heights and on scaffolding or ladders. In addition, the corresponding design is relatively expensive because the individual elements have to be manufactured, stored, transported and assembled separately. In addition, the previously usual arrangement creates a relatively large radial projection through the fastening elements on the pipe clamp, which is difficult for some

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accessible positions of downpipes is a considerable disadvantage.

Based on the prior art described at the outset, the invention is based on the object of creating a downpipe connector of the generic type that is inexpensive to manufacture and stock, that can be installed easily and with a high degree of safety, and with which installation at downpipe connection points that are difficult to access is relatively easy.

To solve this problem, it is proposed that a holding element with a threaded design be attached to one end of the clamp and that a bearing block through which the clamping screw can pass is attached to the other end of the clamp, preferably welded on.

Because the holding element with thread and the bearing block through which the clamping screw can pass are attached to the respective areas of the pipe clamp, preferably welded, a simple

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Production, whereby all individual parts with the exception of the clamping screw are fixed components of the pipe clamp, which neither cause additional costs in storage nor can be lost during assembly. In addition, the corresponding arrangement makes it possible to design the fastening element with only a relatively small radial projection over the circumferential alignment of the pipe clamp, so that the pipe clamp can be easily installed even in places that are difficult to access.

Preferably, the holding element consists of a profile part made of steel, which has a U-shaped bracket protruding from the clamp casing, on the ends of whose legs flange-like protruding weld wings are formed and from the base of which a tab with thread protrudes between the legs.

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It is also preferred that the bearing block is a profile part that is designed in the same way as the profile part, which has a through hole for the shaft of the clamping screw instead of the threaded hole.

The two profile parts can be designed almost identically, i.e. formed on the same tool, whereby only the thread or the through hole for the shaft of the clamping screw needs to be formed in the final work steps. The proposed design also ensures that the two profile parts are very rigid, so that they are not deformed when the clamping screw is tightened, but are suitable for transferring high clamping forces to the clamp.

It is particularly preferred that the tab bent from the base of the profile part and protruding between the legs rests with its edge against the casing of the respective clamp end in a supporting manner,

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whereby the tabs are inclined away from the separation point of the clamp relative to the clamp casing, deviating from the exact radial alignment, the angle between the base and the tabs is slightly greater than 90° in each case, and the formation of the tabs is provided on the edge of the base of the profile part facing away from the separation point of the clamp.

This design ensures that when the clamping screw is tightened, the edges of the corresponding tabs are supported on the casing of the end and the supporting force is further increased by increasing tightening movement, so that bending and thus loosening of the connection is reliably avoided even when very high forces are applied to the clamping screw.

A particularly preferred further development is seen in the fact that the circumferential alignment of the casing of the clamp is tangent to the axis spanned by the thread formation and the screw penetration hole.

Manz11583/94

This results in a very small radial projection of the fastening elements, which is advantageous in terms of assembly, especially for difficult-to-access separation points of socketless pipes.

An embodiment of the invention is shown in the drawing and described in more detail below. It shows:

Fig. 1 A downpipe connector in view;

Fig. 2 also seen in plan view from above;

Fig. 3 the downpipe connector in side view;

Fig. 4 shows the downpipe connector in section IV-IV of Figure 1.

The downpipe connector for connecting socketless pipes consists of a one-piece, open pipe clamp 8

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made of metal, which may optionally have an elastic sealing insert on the inside. A part of a clamping element is arranged radially on the outside at one end of the clamp, while another part of the clamping element is arranged radially on the outside at a distance from the end edge at the other end of the clamp. This allows the clamp to be arranged tightly and tightened at overlapping ends, with the clamping element essentially consisting of a clamping nut and a clamping screw.

According to the invention, a holding element 1 with a threaded structure 2 is welded to one end of the clamp and a bearing block 4 through which the clamping screw 3 can pass is welded to the other end of the clamp. The holding element 1 consists of a profile part made of steel, which has a U-shaped bracket 5 protruding from the clamp casing, on the ends of which flange-like weld wings 6 are formed. A tab 7 protrudes from the base of the bracket 5 in the direction of the casing of the clamp 8. A threaded passage in this tab 7 is provided as the threaded structure 2.

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The bearing block 4 is a profile part designed in the same way as the profile part 1, which instead of the threaded hole has a through hole for the shaft of the clamping screw 3, which is supported on the outside with its head on the corresponding tab 7.

The tab 7, which is bent from the base of the bracket 5 and protrudes between the legs, rests with its edge on the casing of the respective clamp end of the clamp 8, whereby the tabs 7 are inclined away from the separation point of the clamp, deviating from the exact radial alignment relative to the clamp casing. The angle between the base 5 and the tab 7 is slightly greater than 90°, whereby the formation of the tabs 7 is provided on the edge of the base 5 of the profile part 1 or bearing block 4 facing away from the separation point of the clamp.

As can be seen in particular from Figure 1, the circumferential alignment of the jacket of the clamp 8 is different from that defined by the

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Thread design 2 and the screw through hole are tangent to the clamped axis or to the shaft of the clamping screw 3. An arrangement is thus provided in which the smallest possible radial projection of the fastening means relative to the clamp is achieved.

The invention is not limited to the embodiment, but is variable in many ways within the scope of the disclosure.

All new individual and combination features disclosed in the description and/or drawing are considered essential to the invention.

Claims (5)

Manz 11583/94 -11- Protection claims: 1. Downpipe connector for connecting pipes without sockets, consisting of a one-piece, open pipe clamp made of metal, optionally with an elastic sealing insert, on one end of the clamp a part of a clamping element is arranged radially on the outside and on the other end of the clamp a further part of the clamping element is arranged radially on the outside at a distance from the end edge, by means of which the clamp can be tightened tightly with overlapping ends, the clamping element consisting essentially of a clamping nut and a clamping screw, characterized in that a holding element (1) with a threaded formation (2) and a bearing block (4) through which the clamping screw (3) can pass is attached, preferably welded, to one end of the clamp and to the other end of the clamp. Manz11583/94 -12- 2. Downpipe connector according to claim 1, characterized in that the holding element (1) consists of a profile part made of steel, which has a U-shaped bracket (5) protruding from the clamp casing, on the leg ends of which flange-like protruding welding wings (6) are formed and from the base of which a tab (7) with a threaded passage protrudes between the legs. 3. Downpipe connector according to claim 1 or 2, characterized in that the bearing block (4) is a profile part designed similarly to the profile ^part , which has a through hole for the shaft of the clamping screw (3) instead of the threaded passage. 4. Downpipe connector according to one of claims 1 to 3, characterized in that the tab (7) bent from the base of the profile part and projecting between the legs rests with its edge against the jacket of the respective clamp end, Manz11583/94 -13- wherein the tabs (7) are inclined away from the separation point of the clamp (8) relative to the clamp casing, deviating from the exact radial alignment, the angle between the base and tabs (7) is in each case slightly greater than 90° and the formation of the tabs (7) is provided on the edge of the base of the profile part facing away from the separation point of the clamp (8). 5. Downpipe connector according to one of claims 1 to 4, characterized in that the circumferential alignment of the jacket of the clamp (8) is tangent to the axis spanned by the thread formation (2) and the screw through hole.