Fixing element for a pipe, in particular for the drainage of rainwater

Abstract: A fixing element for a pipe, in particular a pipe for the drainage of rainwater, comprises a base part (1) of plastic, provided with a through hole, through which a masonry plug (2) can extend, and by means of which the base part (1) can be fixed against a wall by hammering in with a hammer, and a part (5) which is integral with the base part (1) and is hingedly connected to the base part (1). The hinge axis of the part (5) connected to the base part (1) runs parallel to the central axis of the through hole in the base part (1). A plastic clip (8), which is divided at one point, extends round the pipe, and is provided at the dividing point with two parallel lips (9) which as regards form lie tightly against two sides of the base part (1), the hinged part being in the form of a cap part (5), and in the working position holding the lips (9) pressed against the two sides of the base part (1).

Description: The invention relates to a fixing element for a pipe, in particular a pipe for the drainage of rainwater, comprising a base part of plastic, provided with a through hole, through which a masonry plug can extend, and by means of which plug the base part can be fixed against a wall by hammering in with a hammer, as well as a part which is integral with the base part and is hingedly connected to the base part. Such a fixing element is known from Dutch Patent Application 8,501,283 of Applicants, in particular Figs. 3 and 4. In this case the base part comprises two parts which are hingedly connected thereto, and which grip round the pipe and snap into each other. The hinge pins cross the through hole in the base part at angles of 90°. This fixing element is not vandal-proof. In the fixing of rainwater pipes it is necessary for a closed clip to grip round the pipe. That is why plastic fixing elements have not been used hitherto for rainwater pipes. The most common fixing element for a rainwater pipe is known from DE-A-3533951, and is made entirely of metal and is formed by a metal pin which can be hammered into the wall or the like, and which is provided with an opening at the end projecting beyond the wall. A divided metal clip is placed around the pipe, having at the dividing point two parallel lips, each of which is also provided with an opening. The two openings are placed in line with each other and a bolt is passed through them and tightened with a nut. The two lips are thus pulled towards each other, so that the clip is clamped tightly round the pipe. These very common fixing elements are expensive and labour intensive in fitting. The object of the invention is to provide a fixing element which is made entirely of plastic, and which suitable for the fixing of rainwater pipes. The object is achieved according to the invention in that a separate plastic clip is provided which can extend round the pipe and which is in the form of a strip having a lip at each end, in that the hinged axis of the part connected to the base part runs parallel to the central axis of the through hole in the base part, the hinged part being in the form of a U-shaped cap part, and in the working position holding the lips pressed against the two sides of the base part and locking them by means of grooves and ribs provided on the clip and the base part respectively which run transverse with respect to the longitudinal axis of the strip respectively the hole axis. In the fitted state a completely closed clip thus extends found the rainwater pipe, precisely as in the case of the metal fixing element, but the advantages of fixing by means of a masonry plug and being made of plastic are retained. The invention will be explained in greater detail with reference to two perspective drawings, in which: Fig. 1 shows the fixing element in the ready position; Fig. 2 shows the clip; Fig. 3 shows the base part with the hinged part. The base part 1 contains a through hole, through which the plug 2 of a masonry plug can be driven, the nail of which is indicated by 3. A cap part 5 is connected to the base part 1 by means of a hinge edge 4 running parallel to the central axis of the through hole. Base part 1 and cap part 5 are made of plastic in one piece. The base part 1 contains two parallel sides 6, each provided with a rib. Only the rib 7 can be seen in Fig. 2. The clip 8, which is also made of plastic, is divided and is provided with lips 9 with grooves 10 in them (see Fig. 2). These grooves 10 go with the ribs 7 on the base part 1. After placing of the grooves 10 over the ribs 7, the cap part 5 is flapped over the base part 1 and the clip 8 is locked. In order to ensure that a firm connection is obtained between clip 8 and base part 1, both the base part 1 and the cap part 5 must be designed specially (see in particular Fig. 3). At some distance from the left side 6 of the base part 1 is a snap part 11 which can interact with a snap part 12 on the cap part 5. The snap part 11 contains two snap edges 11a and 11b. The single snap edge 12a of the snap part 12 first grips behind the snap edge 11a after flapping over of the cap part 5, for a provisional fixing, and then behind the snap edge 11b after pressing through, for the final fixing. The other leg 13 of the U-shaped cap part has a pressure part 14 which in the final fixing presses the one lip 9 of the clip 8 tightly against the appropriate side 6 of the base part. The leg 12 has a pressure edge 15 for the other lip 9 of the clip 8. An edge 16 with circular cross-section is also present between the leg 13 and the hinge 4, which edge in the final fixing snaps into a corresponding groove 17 of the base part. Forces which are active in the axial direction of the rainwater pipe are absorbed in this way.

Claims: Fixing element for a pipe, in particular a pipe for the drainage of rainwater, comprising a base part (1) of plastic, provided with a through hole, through which a masonry plug (2) can extend, and by means of which the base part (1) can be fixed against a wall by hammering in with a hammer, as well as with a part (5) which is integral with the base part (1) and is hingedly connected to the base part (1), characterised in that a separate plastic clip (8) is provided which can extend round the pipe and which is in the form of a strip having a lip (9) at each end, in that the hinged axis (4) of the part (5) connected to the base part (1) runs parallel to the central axis of the through hole in the base part (1), the hinged part (5) being in the form of a U-shaped cap part, and in the working position holding the lips (9) pressed against the two sides (6) of the base part (1) and locking them by means of grooves (10) and ribs (7) provided on the clip and the base part respectively which run transverse with respect to the longitudinal axis of the strip respectively the hole axis. Fixing element according to claim 1, characterised in that the cap part (5) and the base part (1) are provided near the hinge (4) with means (16, 17) which fit into each other and which can absorb forces parallel to the central axis of the pipe. Fixing element according to claim 1 or 2, characterised in that the legs of the cap part (5) are provided on the insides with raised parts (14, 15) which press the lips (9) against the sides (6) of the base part (1).

Inventors: THOOLEN WILHELM FRANCISCUS, THOOLEN, WILHELM FRANCISCUS
Applicants: WIT J H EN ZONEN DE, J.H. DE WIT EN ZONEN B.V.
Application year: 1991
Main classification: F16L3
IPC codes: E04D13, F16L3