DE8227425U1 - BENDING HOSE TO CONNECT A VENTILATION ROOF PAN TO THE VENTILATION PIPE OF A BUILDING - Google Patents

Description

Braas & Co. GmbH patent department - Moe / Ha

6000 Frankfurt am Main 8000 Munich 2

The invention relates to a flexible plastic hose
with spiral folds and arranged at the ends

neten connecting pieces, one of which is for connection with §

the pipe stub a vent roof tile with a sleeve comparable U

can be seen and the other for connection to the ventilation pipe I.

of a building has a spigot end. j§

Ent- f are used for venting waste water downpipes in buildings

ventilation ducts, usually with special ventilation '| roof tiles are connected. Since usually that under the roof

Ending ventilation pipe to the associated ventilation roof tile \.

and the pipe socket is offset in parallel, the pipe ends are used inter alia for flexible hoses connects \ dung.

In a known embodiment of this type (DE-OS 29 29 978), fin- f.

det a one-piece, flexible hose made of plastic j§

Use that has a molded connection piece f§ at each end

having. Such a hose is used for a certain axial f |

Offset between the ventilation pipe and the pipe socket of Ent- ρ

ventilation roof pan designed. If the axial offset of the |

tying ends is larger and / or the ends are further apart t

lie, the greater distance can be defined by two or more §

flexible hoses are bridged. In order to do this the untereiliedli- |

to meet the local conditions in an optimal way

den, hoses of different lengths are required, which |

entails higher storage costs. |

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The invention is based on the object of a flexible hose of the type specified in such a way that it is as universal as possible is usable.

This object is achieved according to the invention in that at least one connection piece has a sleeve at its hose-side end has an internal thread into which the relevant hose end is screwed.

With such a connection of the flexible hose with one or both connecting pieces, it is possible to use a hose, which has a length which is sufficient to bridge larger distances between the ventilation pipe and the ventilation roof pan. An adjustment to smaller distances can then be done simply by shortening the hose. Since the shortened end of the hose is only inserted back into the socket of the associated Connection piece is screwed in, an adjustment can also be made quickly, and there are always elegant connections achieved.

According to a preferred embodiment of the invention it is provided that both connecting pieces are made of hard plastic and each has a socket with an internal thread with at least two threads having. This ensures both a secure and tight connection between the connecting piece and the pipe socket of the ventilation roof pan and the ventilation pipe as well as between the connecting pieces and the ends of the hose.

If you also provide that the folds of the hose through a Wire helix are supported, a particularly high tensile strength connection between connecting pieces is obtained without additional measures and the end of the hose screwed into it. In addition, this gives the hose a high level of torsional strength, which results in a

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the laying makes it difficult to loosen or unscrew a hose end from the associated connecting piece is, since it is still necessary for this, at least one connection piece either from the vent pipe or to loosen the pipe socket of the ventilation roof pan.

An exemplary embodiment of the invention is shown in the drawing. It shows:

1 shows a section from a roof covering of a pitched roof with a ventilation roof pan and a flexible hose connected to it on the underside as well as · .- ■. · a part of a ventilation pipe connected to its lower end,

.

FIG. 2 shows the arrangement of the upper end of the flexible hose at the lower end of a pipe socket of the ventilation roof pan according to FIG. 1 in section and in an enlarged manner Scale and

20th

Fig. 3 shows the arrangement of the lower end of the flexible hose at the upper end of the vent tube of Fig. in section and on a larger scale.

As can be seen from FIG. 1, roof battens 2 are attached to a rafter 1, which in addition to receiving profiled roofing panels 3 also serve to accommodate a special ventilation roof pan, preferably made of plastic. The ventilation roof fringes have a pipe socket 5 which is fastened to the rafter 1 by means of a pipe clamp 6. The underside of the ventilation roof pan 4 is connected to a roof batten 2 via a bracket 7 and is thus secured against lifting off by storm and wind. About a bendable one

Tube 8 with helical folds 9th at its ends Connecting piece 10, 11 has, the pipe socket 5 of the ventilation roof pan 4 with a sewer to the relevant building leading ventilation pipe 12 connected, as below with reference to Figs. 2 and 3 in more detail. is described.

As can be seen from Fig. 2, the lower end of the pipe socket 5 of the ventilation roof pan inserted into the connection piece, the upper part of which is designed as a socket 10c, which has a circumferential groove 10d for receiving a sealing ring 13. The lower part of the connecting piece has a sleeve 10a which is provided with an internal thread 10b into which the hose 8 is screwed with its upper hose end 8a.

The flexible hose 8 consists of an approximately 0.2 mm thick Blown polyethylene film. The folds 9 of the hose are through a wire helix 14 is supported, which is made of an approximately 1 mm thick spring steel wire.

As can be seen from FIG. -3, the flexible hose 8 is with its lower end 8b with the connecting piece 11 by screwing into the sleeve 11a, which has an internal thread 11b is provided, connected. The lower part of the connecting piece has a spigot end 11c which is inserted into one at the upper end of the vent pipe 12 molded sleeve 12a, which has a circumferential groove 12b for receiving a sealing ring 15, is used is.

Claims (3)

Braas & Co. GmbH patent department - Moe / Ha 6000 Frankfurt am Main 8000 Munich 2 Flexible hose for connecting a ventilation roof tile to the ventilation pipe of a building 1. Flexible plastic hose with a spiral Folds and connecting pieces arranged at the ends, one of which is provided with a sleeve for connection to the pipe socket of a ventilation roof pan and the other is provided for connection connection with the ventilation pipe of a building has a pointed end, characterized in that at least one connecting piece (10, 11) on its hose-side The end has a sleeve (10a, 11a) with an internal thread (10b, 11b) into which the relevant hose end (8a, 8b) is screwed. 2. Flexible hose according to claim 1, characterized in that both connecting pieces (10, 11) made of hard Made of plastic and each has a sleeve (10a, 11a) with an internal thread (10b, 11b) with at least two threads. ft ft ir ft · »· IS Sl 13 »Β» »■ 1»> i J 1 • · ft ft »j» χι; 13 Il · »IB» Y 1 1 Y 1 -Z- 3. Flexible hose according to claim 1 or 2, characterized in that that the folds (9) of the hose (8) are supported by a wire helix (14).