DE102008037961B4 - Clamp closure for a pipe clamp - Google Patents

Abstract

Pipe clamp (10) comprising a fastener for fixing the pipe clamp (10) on a house wall and two clamp brackets, wherein a first clamp bracket (12) and a second clamp bracket (14) have a concave curvature (18) which essentially describes a semicircle and serves for receiving a tube, wherein the first clamp bracket (12) and the second clamp bracket (14) at the ends of the concave curvature (18) on both sides each have a corresponding part of a connector, wherein the first clamp bracket (12) at the ends of the concave Curvature (18) each having a folded portion (20) and the second clamp bracket (14) at the ends of the concave curvature (18) each having a complementary folded portion (30), wherein the complementary folded portion (30) at least two further folds has, so that the complementary folded portion (30) in the closed state of the pipe clamp (10) the beveled Ab the complementary folded portion (30) consists of two sections (32) and a part (32) over a long side (40) connecting web (34), so that the sections (32) and the web (34) forming a U-shaped opening (36), characterized in that the folded portions (20) of the first clamp bracket (12) at one of the free corners a rectangular recess (26), a length (44) of the Web (34) corresponds to a length (44) of the rectangular recess (26), the complementary folded portion (30) engages from above around the folded portion (20) and the web (34) in the closed state of the pipe clamp (10) in the rectangular recess (26) is positioned.

Description

The invention relates to a pipe clamp comprising a fastener for fixing the pipe clamp to a house wall and two clamp bracket according to the preamble of claim 1. Such a pipe clamp is made of the EP 1 544 527 A1 known.

The downpipes for roof drainage of buildings perpendicular to the ground must be secured against vertical slipping. Usually downpipe clamps are used, which are anchored in the house wall and closed below a zinc bead soldered on the downpipe.

The clamps are usually closed by means of one or two screws. In the embodiment with a screw, the two clamp halves are already connected at one side via a hinge. However, more frequently clamps are used, which are in two halves and must be closed with two screws.

Therefore, in the practical execution of installation work appropriate tool and the necessary consumables must be carried in sufficient quantity by the installer. In particular, when working on scaffolding there is a risk that materials are not at hand or slip out of the fitter during installation work. In addition, the conventional installation of pipe clamps is time consuming. The experienced installer needs about two minutes for the Montague of a pipe clamp after all. Thus, there is a need for a simplified clamp.

Another disadvantage of the conventional downpipe assembly is the zinc bead, which is soldered onto the pipe to prevent vertical slippage. In addition to the aesthetic impairment also consumables and tools and other tools are needed for the soldering process, which entail the associated disadvantages. The DE 102 60 375 A1 discloses an alternative protection against vertical slippage, wherein a holding element has a retaining pin which pierces the pipe to be secured and thus fixed in position. A new and simplified clamp should be combined with such as well as conventional anti-slip devices.

In the EP 1 544 527 A1 If a two-piece pipe clamp, which is closed by means of a plug connection, is described. The GB 272 144 A also discloses a two-piece pipe clamp, wherein a half clamp has a mandrel for attachment in the house wall. A one-piece designed plastic pipe clamp is the subject of DE 18 99 226 U , which is closed by means of a slide, which is pushed from the bottom up over the clamp ends.

An alternative attachment device for downpipes is in the US 1 260 951 A described in which a hook attached directly to the wall and the downpipe is then hooked in sections from above into the hook.

In the US 867 169 A discloses a two-part split sleeve, which is also closed by a plug connection.

It is therefore the object of the invention, starting from the EP 1 544 527 A1 To provide a pipe clamp that can be closed easily and with little effort without additional materials and tools.

The object of the invention is achieved in an advantageous manner with a pipe clamp with the features of claim 1. Further preferred embodiments are described in the subclaims.

The invention relates to a pipe clamp comprising a fastening element for fixing the pipe clamp to a house wall and two clamp brackets, wherein a first clamp bracket and a second clamp bracket have a concave curvature which essentially describes a semicircle and serves to receive a tube and that the first clamp bracket and the second clamp bracket at the ends of the concave curvature on both sides each have a corresponding part of a plug connection. The first clamp bracket has at the ends of the concave curvature depending on a folded portion and the second clamp bracket has at the ends of the concave curvature each having a complementary folded portion, wherein the complementary folded portion has at least two further folds, so that the complementary folded portion in closed state of the pipe clamp the folded portion positively engages around. The complementary folded portion consists of two sections and a web connecting the sections over a long side, so that the sections and the web form a U-shaped opening. According to the invention, the folded portions of the first clamp bracket at one of the free corners on a rectangular recess, a length of the web corresponds to a length of the rectangular recess, the complementary folded portion engages from above the folded portion and the web is in the closed state of the clamp positioned in the rectangular recess.

Preferably, the two sections of the complementary folded portions are the same size.

The recesses are preferably as deep as the folded portions are wide, d. H. the depth of the recesses preferably corresponds to the wall thickness of the folded sections.

Preferably, the folded portion at the outer end of the rectangular recess on a further recess or bevel. The second recess or bevel serves to attach a lever suitable for opening the pipe clamp or to be able to grip with a corresponding pair of pliers under the complementary folded section.

The pipe clamp according to the invention thus consists of two clamp brackets, each having a concave inner curvature. In the closed state of the pipe clamp, the two concave inner curves form a central opening which receives the pipe to be mounted. Preferably, the first clamp bracket, the wall facing the part of the pipe clamp and the second clamp bracket of the wall facing away from the wall part of the clamp. According to the invention, however, the clamp halves can also be mounted in reverse order on the house wall. Fasteners of a pipe clamp for attachment to the house wall are known in the art. The pipe clamp according to the invention can be mounted with all common fasteners on the house wall.

In a preferred embodiment, the fastening element is fastened to the first clamp bracket, preferably centrally on the outside of the concave curvature.

The pipe clamp according to the invention can thus be closed by a simple insertion of the folded portion in the complementary folded portion. Thus, it is in the closure of the pipe clamp according to the invention is a simple connector, for the closure neither additional tools nor other consumables are needed. Especially in the daily work on scaffolding this is a great advantage, since neither tool nor consumables missing the fitter or can slip. The assembly time is thus shortened in an advantageous manner to up to five seconds.

In a preferred embodiment of the invention, the folded portions are designed rectangular. In this case, the bent portions are arranged such that they extend away from the center of the circle defined by the concave curvature and preferably run parallel to the longitudinal axis of the pipe to be mounted. Thus, the folded portions are aligned in the closed form of the clamp parallel to the house wall.

Advantageously, the first clamp bracket is made of the concave curvature and a respective bent portion at the two ends of the curvature in one piece. In particular, the first clamp bracket can be punched or embossed. Alternatively, the bent portion can also be attached to the concave curvature, preferably welded or soldered. The bent portion and the pipe clamp are preferably the same thickness, so have an equal wall thickness.

In a further embodiment, the folded portions with respect to the longitudinal axis of the pipe to be mounted by 1 ° to 20 °, preferably inclined by 5 ° to 15 °, more preferably by 10 °. In a first case, in which the first clamp bracket is the clamp facing the house wall, the inclination of the bent portions is designed such that the lower edge of the folded portion is shifted back from the vertical in the direction of the concave curvature. If the first clamp bracket of the clamp facing away from the wall of the house, so the inclination of the folded portions is designed such that the lower edge of the folded portions is displaced away from the vertical of the concave curvature. By means of this inclination, an increased pressure is exerted on the tube in the closed state, which in addition to other fuses against vertical slippage, a clamping force is applied to the tube. In addition, the pipe clamp can be closed with an inclined beveled section only from above and opened only upwards again. A gravity-related, unwanted opening of the clamp is thereby avoided.

Preferably, the folded portions have a rough surface or are coated with a material having a rough or blunt surface. In particular, the static friction between the folded portion and the complementary folded portion is thereby to be increased.

According to the invention complementary folded portions are designed such that the U-shaped opening from the center of the formed by the clamp in the closed state circle. In a preferred embodiment of the invention, the sections extend parallel to the longitudinal axis of the pipe to be mounted and thus in the closed state of the pipe clamp also parallel to the house wall. In another Embodiment, the sections are inclined relative to the longitudinal axis of the pipe to be mounted by 1 ° to 20 °, preferably by 5 ° to 15 °, more preferably by 10 °. When the second clamp bracket is the clamp facing away from the wall of the house, the inclination is designed so that the lower edge of the complementary folded portion is displaced away from the vertical of the concave curvature. If the second clamp bracket of the clamp facing the house wall, the inclination of the sections is designed such that the lower edge of the complementary folded portion of the vertical in the direction of the concave curvature shifted back. According to the invention, the inclination angle of the folded portions of the complementary folded portions in the two clamp brackets of a pipe clamp are the same.

In a further embodiment of the invention, the two sections are differently sized on both sides of the web. Preferably, the portion is smaller, which faces the other clamp bracket. The connection of the two sections by means of the web is preferably carried out over the short side of the rectangular sections. In this embodiment, a complementary folded portion is preferably realized in which the two sections engage around the folded portion laterally. The web of the complementary folded portion is then positioned on the outside of the pipe clamp and the clamp lock is not completed upwards. In particular, beveled and complementary folded portions in this form have an inclination to prevent slippage of the second half-clamp down and thereby inadvertent opening of the pipe clamp.

Advantageously, the second clamp bracket is made of the concave curvature and each complementary folded portion at the two ends of the curvature in one piece. In particular, the second clamp bracket can be stamped, stamped or bent. Alternatively, the complementary folded portion can also be attached to the concave curvature, preferably welded or soldered. In this case, complementary folded section and pipe clamp are preferably the same thickness, ie have the same wall thickness.

In a further embodiment of the invention, the bent portion has a further fold, which is preferably designed rectangular. The complementary multi-folded portion according to the invention also has an additional fold, which is preferably designed rectangular.

The described Abkantungsformen the folded and the complementary folded portion are examples which illustrate the connector according to the invention but are not intended to limit the scope of the invention. The exact number of bends and their angles are freely selectable in various embodiments. In particular, round bends according to the invention are also included, as long as the two halves of the male fastener positively engage with each other. Preferably, the pipe clamp is made of all known to those skilled suitable materials. In particular, the pipe clamp according to the invention is made of steel, preferably made of galvanized steel. Alternatively, the pipe clamp according to the invention can also be made of plastic or any other suitable material, which has a suitable hardness and can be shaped accordingly.

In a further preferred embodiment, a mandrel is positioned on the first clamp bracket which is suitable for piercing the tube and fixing it in the vertical position. Preferably, the mandrel is made of any hard material that is suitable for piercing the drop tube, in particular steel, preferably stainless steel.

The attachment of the tube by means of a piercing the mandrel spike offers over all known fastening devices the advantage that significantly less material is consumed. This simultaneously achieves a reduction in production costs. A mandrel positioned directly in the first clamp bracket further reduces the assembly handles and the danger of not having needed tools or accessories during assembly.

In order to prevent water from escaping from the pipe after piercing, a seal is preferably positioned on the mandrel which seals the pipe after piercing. This seal is advantageously designed as a ball, which is positioned on the tip of the mandrel and at the same time acts as a safeguard against injury during transport of the clamp bracket. During assembly of the pipe is then first pierce the fuse and then the pipe, the fuse is pressed on the mandrel as a seal in the direction of the half clamp. A fuse according to the invention is preferably made of rubber, silicone, PTFE or other suitable plastics.

In a further embodiment of the invention, the clamp facing the house wall in the middle of the concave curvature receiving the pipe has a central notch. In the central notch is preferably a mandrel for piercing the tube mounted.

In a preferred embodiment, the mandrel is mounted on a holding element that is complementary to the central notch in the clamp facing the house wall. In particular, the retaining element at a distance of the wall thickness of the pipe clamp has a respective crosspiece, wherein a respective crosspiece is positioned on both sides of the clamp facing the wall of the house when the holding element is located in the central notch. As a result of this configuration of the retaining element, the mandrel is supported by the pipe clamp during penetration of the pipe and fixed in its position.

Advantageously, when using the mandrel, no zinc beads are required to secure against vertical slippage of the pipe.

When using a pipe clamp with a central notch and the mandrel positioned therein, the pipe is secured against vertical slippage even without zinc beads. With this embodiment, both material and time are saved as well as design possibilities opened. In the pipe clamp according to the invention ornaments of various types can be integrated for the design of the downpipe. The ornaments are not bound to the width of the clamp, but may protrude above or below this.

In a further embodiment, the transverse web can be widened and have an additional bead. The bead is positioned on the transverse wall facing the wall of the house. Further, the broadening is preferably to the lower side of the clamp facing the house wall, d. H. towards the side opposite the central notch. The bead is designed such that it comprises the clamp facing the house wall on the lower side. This prevents that the holding element from the central notch of the house wall facing clamp bracket can be moved upwards. In particular, this is important if the retaining element on the opposite side of the mandrel as a device for anchoring, d. H. is designed as a fastener. In a preferred embodiment of the house wall facing clamp bracket is the first clamp bracket. In a further embodiment of the house wall facing clamp bracket may also be the second clamp bracket.

In the following the invention with reference to examples and figures will be described in more detail, but should not be limited to these.

Brief description of the figures

1 shows the pipe clamp according to the invention in the closed state at a glance

2 shows a pipe clamp according to the invention with a complementary folded portion on the second clamp bracket, which engages form-fitting manner from above the folded portion of the first clamp bracket.

3 shows a first clamp bracket with a central notch in which a mandrel for vertical slip protection of the tube is positioned.

Detailed description of the figures

1 shows an overview of a pipe clamp according to the invention 10 in the closed state. The clamp 10 consists of a first clamp bracket 12 and a second clamp bracket 14 , Both clamp brackets have a concave curvature 18 , which is suitable to receive a pipe. At the end of the concave curvature 18 of the first clamp strap 12 there is a folded section 20 , The second clamp strap 14 points at the end of the concave curvature 18 a complementary folded section 30 on, with the complementary folded section 30 the folded section 20 in the closed state of the pipe clamp 10 engages positively.

A device for anchoring 60 the clamp 10 in the house wall is centered on the back of the first clamp bracket 12 positioned.

2A shows a detailed view of the plug-in closure according to the invention of the pipe clamp 10 , The reference numbers apply analogously as in 1 , The folded section 20 of the first clamp strap 12 is from the top of the complementary folded section 30 on the second clamp bracket 14 positively embraced.

The complementary folded section 30 consists of two sections 32a and 32b and one of the subsections 32 connecting footbridge 34 , The jetty 34 does not span the entire long side 40 the sections 32a but ends with the length 44 before the transition to the concave curvature 18 , The subsection 32b has the same length 44 like the bridge 34 , The two subsections 32a and 32b and the jetty 34 form a U-shaped opening 36 in which the folded section 20 in the closed state of the pipe clamp 10 lies. The complementary folded section 30 is configured such that it from above the folded portion 20 includes. Beveled section 20 and first clamp bracket 12 and complementary folded section 30 and second clamp strap 14 have the same wall thickness 28 on.

2 B shows the first clamp bracket 12 in the outside view. At the concave curvature 18 is the pipe to be mounted 16 at. The folded section 20 is as a rectangular section with the long side 40 and the short side 42 designed. At the upper long side 40 indicates the folded section 20 a rectangular recess 26 on. The rectangular recess 26 does not span the entire long side 40 of the folded section 20 , The length 44 the rectangular recess 26 corresponds to the length 44 of the footbridge 34 in 2A , At the end of the rectangular recess 26 a further rectangular recess is arranged, which in this case runs obliquely downwards. Beveled section 20 and first clamp bracket 12 have the same wall thickness 28 on.

3A shows a further embodiment of the first clamp bracket 12 with the concave curvature 18 and the two folded sections 20 , In the middle of the concave curvature 18 has the first clamp bracket 12 a central notch 50 on. This central notch 50 serves to accommodate an alternative safeguard against vertical slippage.

3B shows the first clamp bracket 12 with the central notch 50 in the supervision. In the central notch 50 is a holding element 54 positioned on the side of the concave curvature 18 a thorn 52 has. The thorn 52 pierces the pipe 16 in the assembled state and thus serves as a safeguard against vertical slipping. To the escape of water from the pierced pipe 16 to prevent is at the end of the thorn 52 on the retaining element 54 a seal 62 positioned. The holding element 54 also has two transverse webs 56 on, on both sides of the first clamp strap 12 are positioned. By means of the transverse webs 56 is the thorn 52 when piercing the pipe 16 fixed and supported backwards. At the thorn 52 opposite end of the retaining element 54 there is a device for anchoring 60 , By means of this device for anchoring 60 can the clamp 10 directly, for example, in the wall, be attached.

LIST OF REFERENCE NUMBERS

10

pipe clamp

12

first clamp bracket

14

second clamp bracket

16

mounted pipe

18

concave curvature

20

folded section

26

rectangular recess

28

Wall thickness

30

complementarily folded section

32

part Of

34

web

36

U-shaped opening

40

long page

42

short page

44

length

50

central notch

52

mandrel

54

retaining element

56

crosspiece

60

Device for anchoring

62

poetry

Claims (18)

Clamp ( 10 ) comprising a fastener for fixing the pipe clamp ( 10 ) on a house wall and two clamp brackets, wherein a first clamp bracket ( 12 ) and a second clamp bracket ( 14 ) a concave curvature ( 18 ), which essentially describes a semicircle and serves to receive a tube, wherein the first clamp bracket ( 12 ) and the second clamp bracket ( 14 ) at the ends of the concave curvature ( 18 ) have on both sides in each case a corresponding part of a plug connection, wherein the first clamp bracket ( 12 ) at the ends of the concave curvature ( 18 ) each one folded section ( 20 ) and the second clamp bracket ( 14 ) at the ends of the concave curvature ( 18 ) each have a complementary folded section ( 30 ), wherein the complementary folded portion ( 30 ) has at least two further bends, so that the complementary folded section ( 30 ) in the closed state of the pipe clamp ( 10 ) the folded section ( 20 ) engages positively, wherein the complementary folded portion ( 30 ) of two subsections ( 32 ) and one of the subsections ( 32 ) over a long page ( 40 ) connecting bridge ( 34 ), so that the subsections ( 32 ) and the jetty ( 34 ) a U-shaped opening ( 36 ), characterized in that the folded sections ( 20 ) of the first clamp bracket ( 12 ) at one of the free corners a rectangular recess ( 26 ), a length ( 44 ) of the bridge ( 34 ) of a length ( 44 ) of the rectangular recess ( 26 ), the complementary folded section ( 30 ) from above around the folded section ( 20 ) and the bridge ( 34 ) in the closed state of the pipe clamp ( 10 ) in the rectangular recess ( 26 ) is positioned. Clamp ( 10 ) according to claim 1, characterized in that the folded portions ( 20 ) are rectangular. Clamp ( 10 ) according to claim 1 or 2, characterized in that the bevelled Sections ( 20 ) from the center of the of the concave curvature ( 18 ) of the defined circle. Clamp ( 10 ) according to one of claims 1 to 3, characterized in that the folded sections ( 20 ) parallel to the longitudinal axis of a pipe to be mounted. Clamp ( 10 ) according to one of claims 1 to 3, characterized in that the folded sections ( 20 ) are inclined relative to the longitudinal axis of a pipe to be mounted by 1 ° to 20 °, preferably by 5 ° to 15 °, more preferably by 10 °. Clamp ( 10 ) according to one of claims 1 to 5, characterized in that the folded portions ( 20 ) at the free end then to the rectangular recess ( 26 ) another recess ( 26 ), which preferably extends obliquely towards the free end. Clamp ( 10 ) according to one of claims 1 to 6, characterized in that the folded sections ( 20 ) have a rough surface. Clamp ( 10 ) according to one of claims 1 to 7, characterized in that the fastening element on the first clamp bracket ( 12 ), preferably centrally on the outside of the concave curvature ( 18 ) is positioned. Clamp ( 10 ) according to one of claims 1 to 8, characterized in that the subsections ( 32 ) are the same size or different sizes. Clamp ( 10 ) according to one of claims 1 to 9, characterized in that on the first clamp bracket ( 12 ) a thorn ( 52 ) positioned to puncture a tube and fix it in the vertical position. Clamp ( 10 ) according to claim 10, characterized in that the mandrel ( 52 ) consists of a hard material, preferably stainless steel. Clamp ( 10 ) according to claim 10 or 11, characterized in that a seal ( 62 ) on the thorn ( 52 ), which is adapted to seal a pipe to be mounted after piercing. Clamp ( 10 ) according to one of claims 1 to 12, characterized in that the first clamp bracket ( 12 ) in the middle of the concave curvature ( 18 ) a central notch ( 50 ) having. Clamp ( 10 ) according to claim 13, characterized in that the mandrel ( 52 ) in the central notch ( 50 ) is positioned. Clamp ( 10 ) according to claim 14, characterized in that the mandrel ( 52 ) on a holding element ( 54 ) which is complementary to the central notch ( 50 ) is trained. Clamp ( 10 ) according to claim 15, characterized in that the retaining element ( 54 ) at a distance of the wall thickness ( 28 ) of the first clamp bracket ( 12 ) each have a crosspiece ( 56 ), wherein in each case a transverse web ( 56 ) on both sides of the first clamp bracket ( 12 ) is positioned when the retaining element ( 54 ) in the central notch ( 50 ) lies. Clamp ( 10 ) according to claim 16, characterized in that between the house wall and the first clamp bracket ( 12 ) positioned crosspiece ( 56 ) is widened and has a bead, the first clamp bracket ( 12 ) on the central notch ( 50 ) opposite side. Clamp ( 10 ) according to claim 15 to 17, characterized in that the holding element ( 54 ) on the thorn ( 52 ) opposite side as a device for anchoring ( 60 ) is designed.

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