DE112014003661B4 - Clamp for fixing pipes - Google Patents

Abstract

A clamp (1) for fixing pipes, the clamp (1) comprising an enclosing member (10) forming an opening (O1) for receiving and substantially enclosing the pipe, and wherein the clamp (1) is an inner part (I) and a substantially U-shaped outer part (II), wherein the outer part (II) has an end portion (40) with a cross-section, which is substantially semicircular, and a first and second legs (42, 44), starting from the end portion (40) parallel to each other and separated by a distance, characterized in that
the inner part (I) comprises the enclosing element (10) and the fastening element (11),
the enclosing element (10) being able to be opened and being designed to form on the clip (1) a fastening element (11) with a continuous attachment opening (O2), the fastening element (11) having a thickness in the closed state, which corresponds to the opening diameter (O1) of the enclosing element (10),
and wherein the outer part (II) is designed so that it bears with its legs (42, 44) on both sides of the inner part (I) of the fastening element (11).

Description

TECHNICAL PART

The invention relates to a clamp for fixing pipes according to the preamble of claim 1.

BACKGROUND

The elements known as "clamps" are used to fasten pipes. One common type of cleat known as the "P-clamp" is well suited for mounting pipes in static load installations.

A problem that can arise when mounting pipes by means of P-clamps during installation, where the load can be dynamic or pulsating, such as in motor vehicles on the chassis or on the engine, is the risk that the P-clamp on the sharp Edge breaks off.

To solve this problem, two large blocks are used, consisting of two halves enclosing the tube. However, such a two halves solution requires a lot of space and therefore can not be used in certain installations. Furthermore, such a solution is not suitable for pre-assembly, since it consists of two halves.

STATE OF THE ART

The closest prior art according to the document DE 10 2007 002 076 A1 discloses a clamp according to the preamble of claim 1. This clamp consists of a first and a second clamping element, wherein an insulating member is at least partially disposed between the first and second clamping member and a manifold to be fastened.

The document DE 24 46 133 A1 discloses a safety fastening clamp, which consists of a one-piece casting and which serves without damping element for fastening in particular pipelines.

The document EP 0 736 713 A1 discloses a saddle clamp having a saddle, a lid, and a connector connecting both.

OBJECT OF THE INVENTION

An object of the present invention is to realize a clamp for fixing pipes which can withstand dynamic and pulsating loads and which is compact.

SUMMARY OF THE INVENTION

These and other objects, which will become apparent from the following description, are achieved by a bell type as described in the beginning, which also has the features stated in the characterizing part of the appended independent patent claim 1. The preferred embodiments of the clamp are defined in the appended dependent claims.

According to the invention, these objects are achieved by a clamp for fixing pipes comprising an enclosing element which can be opened to form an opening which receives and substantially encloses the pipe, and a fastener to the clamp with a continuous one Forming opening, wherein the fastening element in the closed state has a thickness which substantially corresponds to the opening diameter of the enclosing member. In this way, a clamp for the attachment of pipes is realized, which can withstand dynamic and pulsating loads and which is compact.

According to one embodiment, the clamp has an inner part and a substantially U-shaped outer part which serve to be mounted in place with the legs on both sides of the inner part of the fastening element. The pre-assembly of the clamp is facilitated in this way. Furthermore, it is advantageous in this case if the inner part consists of a material, such as plastic, which does not wear as a result of the contact with the tube, while the outer part may consist of a metallic material, so that it can withstand dynamic or pulsating loads withstand.

According to an embodiment of the clamp inner part and outer part are designed so that they cooperate and connect by means of latching configuration. The assembly of the clamp on the pipe is facilitated in this way. The pre-assembly of the clamp is also facilitated in this way.

According to one embodiment of the clamp, the inner part comprises a hinge element which makes it possible to open the clamp. The assembly of the clamp on the pipe is facilitated in this way.

According to one embodiment of the clamp, the inner part is made of a plastic material. By using plastic surrounding the pipe, wear due to contact with the pipe is less than when using a metallic material.

According to one embodiment of the clamp, the inner part comprises a hinge element in the form of a film hinge, which makes it possible to open the clamp. In this way, you get an efficient joint that can be easily produced, for example by injection molding.

According to one embodiment of the clamp, the outer part is made of a metallic material. The absorption of forces, which can occur in the form of dynamic and pulsating loads, can be favored in a compact manner, since the metallic material is solid and robust.

According to one embodiment of the clamp, the inner part consists of two separate parts, which are preferably connected to one another. As a result, the production of the inner part is facilitated. The separate parts may be identically shaped and, according to a variant, interconnected by a piece of tape to be subsequently attached to facilitate assembly.

According to one embodiment of the clamp, the fastening opening is arranged transversely to the longitudinal extent of the fastening element and transversely to the axial direction of the opening of the enclosing element. The clamp is attached in this way like a P-clamp to optimize its compactness.

According to one embodiment of the clamp, the thickness of the fastener is given by two cooperating elements of the enclosing element in the closed state. In this way you get a stable clamp, which facilitates the assembly.

list of figures

• 1 ist eine schematische perspektivische Ansicht einer Schelle gemäß einer Ausführungsform der vorliegenden Erfindung;
• 2 ist eine schematisch perspektivische Ansicht eines U-förmigen Außenteils der in 1 dargestellten Schelle;
• 3 ist eine schematisch perspektivische Ansicht eines Innenteils der in 1 dargestellten Schelle;
• 4 ist eine schematische Draufsicht des in 3 dargestellten Innenteils in geöffnetem Zustand;
• 4a ist ein schematischer Längsschnitt A - A des in 4 dargestellten Innenteils;
• 4b ist ein schematischer Transversalschnitt B - B des in 4 dargestellten Innenteils;
• 4c ist ein schematischer Längsschnitt C - C eines Teilbereichs des in 4 dargestellten Innenteils;
• 5 ist eine schematische perspektivische Ansicht des in 3 dargestellten Innenteils in geöffnetem Zustand;
• 6a ist eine schematische Seitenansicht des in 2 dargestellten Außenteils; und
• 6b ist eine schematische Draufsicht des in 2 dargestellten Außenteils.

The present invention will be better understood by reading the following detailed description with the aid of the attached drawings, wherein like reference designations refer to the same parts throughout the drawings.

• 1 Fig. 12 is a schematic perspective view of a clamp according to an embodiment of the present invention;
• 2 is a schematic perspective view of a U-shaped outer part of the in 1 illustrated clamp;
• 3 is a schematic perspective view of an inner part of in 1 illustrated clamp;
• 4 is a schematic plan view of the in 3 illustrated inner part in the open state;
• 4a is a schematic longitudinal section A - A of in 4 illustrated inner part;
• 4b is a schematic transverse section B - B of the in 4 illustrated inner part;
• 4c is a schematic longitudinal section C - C of a portion of the in 4 illustrated inner part;
• 5 is a schematic perspective view of the in 3 illustrated inner part in the open state;
• 6a is a schematic side view of the in 2 illustrated outer part; and
• 6b is a schematic plan view of the in 2 illustrated outer part.

DESCRIPTION OF EMBODIMENTS

1 is a schematic perspective view of a clamp 1 according to the present invention, the 3 . 4 . 4a-c and 5 are representations of different views of an inner part I of the clamp 1 and the 2 and 6a - b are representations of different views of an outer part II of the clamp 1 ,

The clamp 1 is intended for fixing pipes.

The clamp 1 has an inner part I on. The inner part I comprises an enclosing element 10 , which can be opened and forms an opening to receive the tube and to enclose it substantially.

The enclosing element 10 which can be opened comprises a first and a second element 20 . 30 that work together.

The inner part I comprises a joint element 12 which makes it possible to open the clamp. The inner part according to this embodiment comprises a joint element 12 in the form of a film hinge 12 which makes it possible to open the clamp.

The first and second interacting elements 20 . 30 of the enclosing element 10 are mounted together to move between an open state for receiving the tube and a closed state for attachment about the hinge element 12 to be panned.

The enclosing element 10 is arranged so that it is a fastener in the closed state 11 with a through opening O1 forms. The enclosing element 10 thus includes a fastener 11 ,

Each of the interacting elements 20 . 30 of the enclosing element 10 has an inner surface 20a . 30a with an inner surface and an outer surface 20b , 30b on. The respective cooperating element 20 . 30 of the enclosing element 10 has opposite long sides 20c . 20d . 30c . 30d on.

Each of the interacting elements 20 . 30 of the enclosing element 10 has a short side 20e . 30e on the joint, with the short side 20e of the first interacting element 20 through the joint element 12 with the short side 30e of the second cooperating element 30 connected is.

Each interacting element 20 . 30 of the enclosing element 10 has a short side at the end 20f . 30f on, the short side 20e . 30e opposite to the joint.

The inner surface 20a . 30a each interacting element 20 . 30 of the enclosing element 10 has a recess 22 . 32 with a substantially semicircular cross-section, the direction of axial expansion being transverse to the longitudinal extent of the enclosing element 10 and parallel to the short side at the joint of the respective cooperating element 20 . 30 is. The semicircular indentation 22 at the first cooperating element 20 and the semicircular indentation 32 on the second cooperating element 30 form in the closed state said opening O1 to receive and substantially enclose the tube.

Each interacting element 20 . 30 of the enclosing element 10 includes a mounting opening portion O20, O30 that is transverse to the longitudinal extent of the cooperating element 20 . 30 and transverse to the axial direction of the indentation 22 . 32 is arranged. The attachment opening part O20 of the first cooperating element 20 and the attachment opening part O30 of the second cooperative element 30 form in the closed state, a mounting opening O10 for receiving a fastener, such as a screw.

The attachment opening part O20, O30 of the respective cooperating element 20 . 30 is between the semicircular indentation 22 . 32 and the short side 20f . 30f arranged at the end. The attachment opening part O20, O30 of the respective cooperating element is substantially centered between the long sides 20c . 20d . 30c . 30d arranged.

The inner surface 20a of the first interacting element 20 and the inner surface 30a of the second cooperating element 30 of the enclosing element 10 are arranged in the closed state so that their inner surfaces touch each other.

Each interacting element 20 . 30 of the enclosing element has a thickness substantially equal to the radius of the semicircular indentation 22 , 32 corresponds. In this case, the fastener 11 that of the enclosing element 10 is formed, in the closed state has a thickness which substantially corresponds to the opening diameter of the enclosing element.

The outer surface 20b . 30b each interacting element 20 . 30 has material-reducing indentations 24 . 34 which have been produced by injection molding during manufacture. The thickness of the fastener 11 thus results from the first and the second cooperating element 20 . 30 of the enclosing element 10 in closed condition.

Each interacting element 20 . 30 has a border element 26 . 36 on, along the respective long side 20c . 20d . 30c . 30d runs and protrudes from the outer surface.

Each interacting element 20 . 30 has opposite ramp elements 28 . 38 in conjunction with the respective edge element 26 . 36 designed to form part of a latching configuration. Each ramp element 28 , 38 is disposed substantially at the level of the attachment opening portion O20, O30. Each ramp element 28 . 38 points to the short side 20f . 30f at the end in relation to the surface 20b . 30b the outer surface on a slope. Each ramp element 28 . 38 has a height that is substantially equal to the height of the edge element 26 . 36 equivalent. Each ramp element 28 . 38 has a ramp side 28a , 38a on, the short side 20e . 30e at the joint 20e . 30e shows, and an opposite side 28b . 38b that go to the short side 20f . 30f at the end shows. The opposite side 28b . 38b at each ramp element 28 . 38 is perpendicular to the edge element 26 . 36 and substantially perpendicular to the direction of axial expansion of the cooperating element 20 . 30 ,

The outer surface 20b . 30b each interacting element points from the short side 20e . 30e at the joint to the edge element 26 . 36 towards a cross-section which is substantially arcuate and the semicircular indentation 22 . 32 follows. Each short side 20e . 30e at the joint 20e . 30e forms when the enclosing element 10 yourself in closed state, an enclosing side 10e at the enclosing element 10 , In this case, the enclosing side points 10e of the enclosing element 10 in the closed state, a substantially semicircular cross-section.

The inner part I of the clamp 1 is made of a plastic material according to one embodiment.

The outer part II of the clamp 1 is essentially U-shaped. The outer part II has an end portion 40 with a substantially semicircular cross section. The outer part has a first and a second leg 42 . 44 on, from the end section 40 proceed parallel to each other and are separated by a distance.

Each of the thighs 42 . 44 has an inner surface 42a . 44a with an inner surface and an outer surface 42b . 44b on. Every thigh 42 . 44 has an opposite long side 42c . 42d . 44c . 44d on. Every thigh 42 . 44 has an end portion 42e, 44e.

Every thigh 42 . 44 includes a mounting opening portion O42, O44 that is transverse to the longitudinal extent of the leg 42 . 44 and transverse to the axial direction of the semicircular end portion 40 is arranged. The attachment opening part O42 of the first leg 42 and the attachment opening part O44 of the second leg 44 are aligned.

Every thigh 42 . 44 has opposite indentations 43 . 45 on, at the respective long side 42c . 42d . 44c . 44d are arranged. These recesses form part of a latching configuration and serve to cooperate with the Rampenele elements 28, 38. Every indentation 43 . 45 is arranged substantially at the level of the attachment opening part O42, O44.

The mounting hole part O42, O44 of each leg 42 . 44 is between the semicircular end portion 40 and the end section 42e . 44e of the leg 42, 44 arranged. The attachment opening part O42, O44 of the respective leg 42, 44 is substantially centered between the long sides 42c . 42d . 44c . 44d arranged.

The width of each thigh 42 . 44 essentially corresponds to the distance between the opposite edge elements 26 . 36 of the inner part I.

The outer part II of the clamp 1 is in the assembled state arranged so that it with his thighs 42 . 44 on both sides of the inner part I of the fastener 11 is present.

During assembly of the clamp 1 the outer part I becomes the enclosing side 10e attached to the closed inner part I, so that the legs 42 . 44 each on one side of the inner part I between the edge elements 26 . 36 run. The latter serve as guides for guiding the legs 42 . 44 while attaching. The legs are designed so that they are when the end sections 42e , 44e the thigh 42 . 44 the ramp elements 28 . 38 reach and be driven to this, can bend. As a result, the legs are 42 . 44 configured to have a return spring function. When the end sections 42e . 44e the thigh 42 . 44 the ramp elements 28 . 38 happen, every thigh cushions 42 . 44 back, leaving the ramp element 28 . 38 in the respective indentation 43 . 45 is introduced, so that there is a latching configuration, which the outer part II and the inner part I of the clamp 1 holds together.

When the inner part is mounted on the inner part I, the respective opening element O20, O30, O42, O44 of the inner part I and the outer part II are aligned with each other, so that a through opening O2 in the fastener 11 is formed.

According to one embodiment of the clamp, the outer part is made of a metallic material.

The inner part has been described above in that the first cooperating element is connected to the second cooperating element by a hinge in the form of a film hinge. According to an alternative embodiment of the clamp, the inner part consists of two separate interacting parts. Preferably, the separate parts are connected together. The separate parts may be identically shaped and, according to a variant, interconnected by a piece of tape to be subsequently attached to facilitate assembly.

The inner part according to the embodiment described above is made of a plastic material. The inner part may be made of any suitable material, such as a wooden or metallic material.

The clamp according to the embodiment described above consists of an inner part and an outer part, which are designed so that they can cooperate connecting. According to an alternative embodiment, the clamp consists only of the inner part, which is preferably made according to this variant of a metallic material.

The above description of the preferred embodiments of the present invention is provided for illustration and explanation. It is not to be understood as exhaustive and is not intended to limit the invention to the variants described. As will be appreciated by those skilled in the art, many changes and variations will be apparent. The embodiments have been chosen and described in order to explain the principles of the inventions and their practical applications in the best possible manner and thereby to enable those skilled in the art to embody the invention in its various embodiments and with the various modifications intended for the intended use are suitable to understand.

Claims (9)

A clamp (1) for fixing pipes, the clamp (1) comprising an enclosing member (10) forming an opening (O1) for receiving and substantially enclosing the pipe, and wherein the clamp (1) is an inner part (I) and a substantially U-shaped outer part (II), wherein the outer part (II) has an end portion (40) with a cross-section, which is substantially semicircular, and a first and second legs (42, 44), starting from the end portion (40) parallel to each other and separated by a distance, characterized in that the inner part (I) comprises the enclosing element (10) and the fastening element (11), wherein the enclosing element (10) can be opened and is designed to form on the clamp (1) a fastener (11) with a continuous attachment opening (O2), the fastener (11) in the closed state having a thickness corresponding to the opening diameter Oesser (O1) of the enclosing element (10), and wherein the outer part (II) is designed so that it rests with its legs (42, 44) on both sides of the inner part (I) of the fastening element (11). Clamp (1) to Claim 1 , wherein the inner part (I) and the outer part (II) are designed so that they interact and connect by means of latching configuration (28, 38, 43, 45). Clamp (1) according to one of Claims 1 - 2 in which the inner part (I) is made of a plastic material. Clamp (1) according to one of Claims 1 - 3 in that the inner part (I) comprises a hinge element (12) which makes it possible to open the clamp. Clamp (1) to Claim 4 in that the inner part (I) comprises a hinge element (12) in the form of a film hinge (12), which makes it possible to open the clamp. Clamp (1) according to one of Claims 1 - 3 in which the inner part (I) consists of two separate parts, which are preferably connected to one another. Clamp (1) according to one of Claims 1 - 6 in which the outer part (II) is made of a metallic material. Clamp (1) according to one of Claims 1 - 7 in which the attachment opening (O2) is arranged transversely to the longitudinal extent of the attachment element (11) and transversely to the axial direction of the opening of the enclosing element (O1). Clamp (1) according to one of Claims 1 - 8th in that the thickness of the fastener (11) results from two cooperating elements (20, 30) of the enclosing element (10) in the closed state.

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