SK26997A3 - Ring fastener and method of fastening the pipe on wall with a clamp - Google Patents

Abstract

Ring for fastening a pipe to a wall comprising a cylindrical ferrule (1) with a longitudinal slot (3) and folded portions (4, 5) extending therealong and a brace (2) to be mounted on the wall and having, on its non-parallel side, folded portions (9, 8) for cooperating with the folded portions (4, 5) of the ferrule (1). The slot (3) and/or the brace (2) have a trapezoidal shape, so that when the ferrule is arranged about a pipe and is inserted from the top into the brace (2), with the folds (4, 5) of the ferrule cooperating with the folds (9, 8) of the brace, the ferrule (1) and the pipe are held by a self-locking action.

Description

The invention relates to an annular clip for fixing a pipe to a wall. Such annular brackets are mainly used in fixing rain or sewer downpipes, but can generally be used to fasten any pipes.

BACKGROUND OF THE INVENTION

French patent FR-B-2 591 514 discloses a device for storing rain or sewer pipes. According to this specification, the device comprises an uncooked expandable ring with two projections as well as a classic clamping ring. During assembly, the uncooked ring is placed around the tube and the assembly is then clamped in the clamping ring.

The device allows to eliminate the need to perform any welding operations on the pipe. However, it has a number of disadvantages. In particular, it requires the use of a series of parts, since it is necessary to use an expandable ring and a clamping ring. The clamping ring usually comprises two semicircles, one of which is intended to be fastened to the wall, and further fastening means such as screws or nuts. Furthermore, the device is very clearly visible due to the presence of the clamping ring and its fastening means. This poses problems in the construction of buildings, where one of the requirements is sometimes the inconspicuous placement of downspouts.

Furthermore, the device does not provide too much safety.

The clamping means of the clamping ring are visible and easy to handle. In this case, they will not ensure that the downcomer will slide in the ring. Furthermore, there is a risk that the tube will drop if the clamping means of the clamping ring are not appropriately clamped. If, on the other hand, the clamp is too tightly clamped, the lead pipe may be damaged.

Thus, the use of the above-mentioned means requires some practice and represents a considerable restriction on assembly.

GB-A-613 940 discloses a downpipe tube formed by bending a sheet and equipping it with a sealable strip along its entire length to eliminate the need for any welding. In addition, a wall-fastening means formed around the pipe in the form of an annular ring and closed by a closable strip to simultaneously close the pipe can be used. This device is difficult to dismantle and is only suitable for un-welded pipes.

GB-A-724 433 discloses means for fastening cables on a board perpendicular to the direction of the cable. This means is made of several elements and cannot be easily disassembled because it provides bolted connection and is not capable of self-locking.

SUMMARY OF THE INVENTION

The aforementioned drawbacks are eliminated by an annular tube clamp on the wall comprising a cylindrical sleeve provided with a trapezoidal slot and folds along the slot, and a clamp designed to be mounted on a wall having a trapezoidal shape and provided with folds on its different sides to interact with folds.

According to one embodiment of the invention, the sleeve is further provided with projections.

According to one embodiment of the invention, the sleeve folds are oriented to the interior of the sleeve, and the clamp folds are oriented to the wall-facing side.

2

According to another embodiment of the invention, the sleeve folds are oriented outwardly from the sleeve and the clamp folds are oriented to the side intended to be positioned away from the wall.

The clamp may comprise wall mounting means comprising a nut welded to the clamp and a screw retaining piece screwed into said nut.

The invention also relates to a method of fastening a pipe to a wall by means of the above-mentioned annular clip, in which a clamp is fastened to the wall - from the larger parallel sides of the clamp facing upwards, a sleeve with the larger of the parallel edges of the slot facing upwards; from above, the sleeve is inserted into the clamp, allowing the sleeve folds to interact with the sleeve folds.

The invention makes it possible to overcome the above-mentioned drawbacks and provides an annular clip comprising a reduced number of elements, which facilitates its manufacture and assembly. The annular clip according to the invention is inconspicuous after installation and is almost invisible. It allows easy assembly that does not impose any special skill requirements. It also provides a solution to the problem of blocking downspouts while ensuring their reliable hold on the pipes. The annular clip according to the invention remains easily removable.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention is explained in more detail below with reference to the accompanying drawing, in which: FIG. 1 is a perspective view of an annular clip according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

Fig. 1 shows an exploded perspective view of an annular clip according to the invention. The annular clip comprises a sleeve 1 and a clamp 2 intended to be fixed to a wall. The sleeve 1 has a cylindrical shape adapted to the shape of a tube fixed to the wall. In the exemplary embodiment shown in the figures, the sleeve 1 is in the form of a rotary cylinder and is adapted to mount a tube of circular cross-section. The sleeve 1 may also be cylindrical, but of oval or square cross-section depending on the shape of the tube.

The sleeve 1 is provided with a longitudinal slot 3, i.

arranged from one end of the sleeve 1 to the other end.

In the example of FIG. 1, the slot 3 is parallel to the axis of the sleeve 1.

It can also be displaced relative to this axis. The slot 2 may have a rectangular or preferably trapezoidal shape. Along the slot 2, the sleeve 1 has folds 4 and 5. These folds are formed in the example of FIG. 1 by bending the sleeve edge along the entire length of the slot.

The sleeve 1 has protrusions 6, 7 along its upper and lower ends. These protrusions allow a better grip of the sleeve 1. They also ensure the continuity of the nature of the sleeve 1 with respect to known devices such as the device of the aforementioned patent specification. The invention may be practiced without these projections.

The terminal 2 of the figure has a generally trapezoidal shape. Along its non-parallel sides, the clamp 2 is provided with folds 8, 9 intended to interact with the folds 5, 4 of the sleeve 1. In the embodiment of FIG. 1, the folds 5, 5 of the sleeve 1 are oriented outwardly from the sleeve, and the folds 8, 9 of the clamp 2 are oriented towards the side of the clamp facing away from the wall. In another embodiment, the folds 4, 5 of the sleeve 1 may be oriented inwardly of the sleeve, and the folds 8, 9 of the clip 2 are oriented towards the side of the clip intended to lie against the wall.

The clamp 2 is intended for wall mounting. In the embodiment of the figure, the clamp comprises fastening means comprising a nut 10 welded to the clamp 2, namely a screw fastener 11 adapted to be screwed into the nut. Other methods of securing the clamp 2 to the wall will be apparent to the skilled person.

The attachment of the pipe as a lead to the wall by means of the annular clip of the figure will now be described. First, the clamp 2 is fixed to the wall. In the example of fixing according to the figure, this is done by drilling a hole in the wall and inserting the clip 12 into the hole. The screw clip 11 is then inserted into the clip 12 and the screw 10 into the nut 10, whereby the clip 2 is fixed to the wall. The clamp 2 is mounted on the wall such that the larger of the parallel sides of the trapezoid is upwards, i.e. the parallel sides of the trapezoid converge downwards.

The sleeve is then placed around the tube. In a preferred embodiment, when the slot 2 ^{in the} sleeve 1 has a trapezoidal shape, the largest of the parallel sides is mounted upwards, ie the different sides of the trapezoid slot converge downwards.

Then, the sleeve 1 surrounding the tube is inserted from above into the clamp 2 so that the sleeve folds 4, 5 cooperate with the sleeve folds 9, 8. When the sleeve 1 is lowered relative to the terminal 2 ^{in the} direction indicated by the arrow 13 in the figure, at the same time the tube is clamped due to the trapezoidal shape of the terminal. The more the sleeve descends, the more the pipe is clamped. The annular clip according to the invention thus constitutes an automatic locking system which ensures proper holding of the tube without the need for special alignment or special craftsmanship at the time of attachment. There is no risk that the pipe fastened according to the invention could slip downwards due to the annular clip. If it would tend to sink, it would carry the sleeve 1 with it, causing more gripping and preventing any movement.

However, the annular clip of the invention remains readily removable by moving the sleeve relative to the clamp in a direction opposite to the arrow 13 in the figure. After disassembly, the fastener elements can be easily recovered, i. sleeve 1 and clamp 2.

In the example of the figure, the clamp 2 has a trapezoidal shape and the slot 2 of the sleeve 1 can have a rectangular or trapezoidal shape. Alternatively, the clamp 2 may be trapezoidal and the clamp 2 could in this case be rectangular or trapezoidal in shape.

An essential feature when moving with respect to the invention is to terminal 2.

that the sleeve 1 closes the tube,

The sleeve 2 can be made by pulling and bending from a galvanized sheet of 0.65 mm thickness, and the clamp by bending and bending a galvanized sheet 8/10. These technology and material choices make it possible in particular to simply weld the nut to the clamp 2. However, any other type of metal or other material may be used to practice the invention.

Advantageously, sleeves of different lengths can be used depending on the size of the pipes to be fastened. The folds may be continuous, as in the embodiment shown in FIG. However, they may also be partial, i. be or not arranged along the entire length of the sleeve slot, or over the entire side of the clamp. It is thus possible to create folds simply in the form of local clips. The angle between the inclined sides of the sleeve and the axis of the sleeve and / or the angle between the inclined sides of the clamp and the axis of the clamp may, for example, be of the order of 10 °. This value ensures an effective grip and allows easy mounting.

The annular clip according to the invention makes it possible to provide an inconspicuous self-locking fastening.

Claims (6)

PATENT CLAIMS An annular tube clamp on a wall, comprising a cylindrical sleeve (1) provided with a trapezoidal slot and folds (4, 5) along said slot, and a clamp (2) for wall mounting having a trapezoidal shape open upwardly and provided for its miscellaneous sides with folds (9, 8) intended to interact with the folds (4, 5) of the sleeve (1). An annular clip according to claim 1, characterized in that the sleeve (1) is further provided with projections (6, 7). An annular bracket according to claim 1 or 2, characterized in that the folds (4, 5) of the sleeve (1) are oriented inwardly of the sleeve and the folds (9, 8) of the clamp (2) are oriented to the side intended to adhere to the wall. An annular clip according to claim 1 or 2, characterized in that the folds (4, 5) of the sleeve (1) are oriented outwards from the sleeve and the folds (9, 8) of the clamp (2) are oriented to the side intended to be positioned from the wall. An annular bracket according to at least one of claims 1 to 4, characterized in that the clamp (2) comprises wall-fastening means comprising a nut (10) welded to the clamp (2) and a screw fastener (11), screwed into said nut (10). Method for fastening a pipe to a wall by means of an annular clip according to at least one of Claims 1 to 5, characterized in that the clamp (2) is fastened to the wall with the larger of the parallel sides of the clamp facing upwards. from the parallel edges of the slot facing upwards, and from above the sleeve (1) is inserted into the clamp (2), allowing the sleeve folds (4, 5) to interact with the sleeve folds (9-8).