KR101107908B1 - Hose clamp - Google Patents

Abstract

The present invention relates to clamps, and more particularly to clamps for hoses, pipes, cables and the like. The clamp comprises an annularly curved fixing strip having a first end and a second end, two flanges each connected to each end of the fixing strip, and an opening in the flange through which the tensioning means are guided. One or more flanges have connecting means for forming a riveted joint between the flanges.

Description

Hose Clamp

The invention relates to clamps according to the preamble of claim 1, in particular clamps for holding hoses, cables, pipes and the like.

Such clamps are known, for example, from DE 201 05 870 U1. The clamp has a substantially annular anchoring strip with two anchoring flanges, each of which is provided with a hole through which the tightening screw passes.

The flange is pressed towards the other flange during assembly, the opening is aligned with the other opening, and the tightening screw is guided through the opening. Thereafter, the tightening screw is tightened.

In order to facilitate assembly, in particular to facilitate mutual alignment of the flanges and insertion of the fastening screws into the openings, the clamp is provided with a preassembly lock. The pre-assembled lock consists mainly of hooks formed in one of the flanges, the flanges having undercuts to hook onto the other fixed flange. By this means, the flanges can be connected before the actual final assembly. The hook may also be used to preassemble the clamp onto the assembly, ie to provide a clamp preassembled to the assembly.

It is an object of the present invention starting from this to provide a pre-assembled lock on the clamp, which ensures that the pre-assembled clamp is reliably maintained and allows for accurate alignment of the fixing flange, thus ensuring the enveloping use.

This object is achieved by a clamp having the features of claim 1.

The clamp, in particular the clamp for holding the hose, has a first end and a second end and has an annularly curved fixing strip, two flanges each connected to one end of the fixing strip, and through which tension means are guided. An opening in the flange. In addition, at least one of the flanges is provided with connecting means for forming a riveted joint between the flanges.

The riveted joint is formed by a generally cylindrical connecting element plastically deformed, a so-called riveted form-locking connection of the flange. Such a connection is unlikely to be damaged. Any accidental release of the riveted joint and possible damage of the preassembled clamp are substantially eliminated. In this way, a secure connection is achieved between the two fixing flanges. The riveted joint serves as a preassembled lock, especially when the preassembled clamp is supplied mounted to the assembly. In this case, the flanges are reliably connected to one another by means of riveted joints before the tensioning means, usually the tightening screws, are tightened during the final assembly, in particular for securing the hose or pipe section. Pre-assembly of the clamp facilitates guiding the tightening screw through the opening of the flange.

The connecting means preferably comprise at least one deformable through member arranged in one of the flanges. The penetrating member forms a substantially cylindrical connecting element. Basically, the penetrating member may be interrupted at one or a plurality of points or may consist of a plurality of sections.

The penetrating member is particularly configured to be plastically deformable. In this way, it should be possible to achieve reliable connection and simple preassembly. The material and thickness of the penetrating member is appropriately selected to meet the requirements for riveted joints.

The through member is preferably arranged in a ring shape on one of the flanges so that it can be guided through an opening in the other flange during preassembly. This ensures precise adjustment of the flanges, in particular correct mutual alignment of the openings.

The penetrating member may be disposed in the opening area in one of the flanges. For example, the through member may be provided at the edge of the opening in the flange, thereby additionally giving reinforcement against deformation when the tightening screw is tightened during final assembly.

The through member extends in particular from one of the flanges through the opening of the other flange.

The through member preferably extends almost vertically from one of the flanges.

The free end of the penetrating member is deformed in particular to form a riveted joint between the flanges. Thus, the flange is securely held on the other flange in the preassembled state.

The free end of the penetrating member can deform in the outward direction and rest on another flange.

In the opening area of one or more of the flanges, it is preferred that the clamp has a profile for reinforcing the flange. The profile is used to stabilize the flange or flanges. The profile may have embossing in the direction of the head of the tightening screw used in final assembly. The profile can also serve to support the flanges against each other, preventing loosening of the tightening screws guided through the opening prior to assembly.

The profile includes in particular a reinforcing pleat which encloses the opening in a ring shape.

Other exemplary embodiments, features, and advantages of the present invention are obtained from the following description of specific exemplary embodiments.

1 is a side view of the clamp in the open state at the time of supply,

2 is a side view of a pre-assembled clamp,

3A is an enlarged view of FIG. 2;

FIG. 3B shows the embodiment of FIG. 3A with screws,

4 is a perspective view of a preassembled clamp,

5 is another exemplary embodiment of a clamp according to the invention,

FIG. 6 is a detailed view of the example embodiment of FIG. 5;

FIG. 7 shows an exemplary embodiment of FIG. 5 with a screw. FIG.

<Description of the symbols for the main parts of the drawings>

1: clamp

2: fixed strip

3, 4: fixed flange

5, 6: strengthen wrinkles

7, 8: opening

9: penetrating member

10: annular tightening wrinkles

12; Recess

13: cloth

14: beveled undercut

15: protrusion

1 shows the clamp 1 in the open state according to the invention, not pre-assembled, fed to a pre-assembly site.

The clamp 1 has an annularly curved fixing strip 2 with fixing flanges 3, 4 connected to two ends. The first fixing flange 3 extends almost perpendicularly from the first end of the fixing strip 2, and the second fixing flange 4 is connected to the second end of the fixing strip 2 via a stage. .

The fastening flanges 3, 4 are not yet joined together at the time of supply so that the clamp 1 can be guided around the end of the hose, cable, pipe or the like to be fastened or around the end of the hose to be joined. In order to prevent any deformation of the bends or ends, reinforcing pleats 5, 6 are arranged at the transitions between the fixing strip 2 and the flanges 3, 4. In this way, it ensures that the flanges remain parallel on the other flanges without the assembly force applying any force when the clamps are closed.

Openings 7, 8 are provided in the flanges 3, 4, and the tightening screws can be guided through the openings during final assembly. If possible, the openings 7, 8 should be placed up and down before final assembly so that the tightening screws can be guided through the openings 7, 8 without any problem.

The penetrating member 9 extends in the direction of the upper flange 3 almost vertically from the lower flange 4. The penetrating member 9 is arranged at the edge of the opening 8 and surrounds the area in which the tightening screw is guided during final assembly. The penetrating member 9 is configured to be plastically deformable relatively easily for preassembly forming a riveted joint between the flanges 3, 4.

In simple assembly, it is also conceivable to construct the penetrating member into an upward tapered cone. Another measure for easier assembly may include providing a chamfer at the outer free edge of the through member.

The opening 7 of the flange 3 shown above gives an annular reinforcement pleat 10 which gives the flange 3 additional stiffness and in particular prevents deformation of the flange 3 when tightening the tightening screw during final assembly. Surrounded by) Similarly, reinforcing pleats (not shown) may be included in the flange 4 shown below, as well as the penetrating member 9.

 2 shows the clamp in a preassembled state. The securing strip 2 comprises, for example, a tightening cross section 11 through which a hose (not shown) to be fixed is guided. The flanges 3 and 4 lie parallel up and down. The penetrating member 9 is guided through the opening 7 of the upper flange 3 during preassembly and then plastically deformed.

As can be seen particularly clearly from FIG. 3A, the outwardly deformed end of the penetrating member 9 lies in the edge region of the opening 7 on the upper flange 3. In this way, a secure connection is obtained between the two flanges 3, 4. In addition, the openings 7, 8 are optimally aligned with respect to each other by guiding the annular through member through the opening 7. The annular penetrating member 9 may be selectively interrupted at one or a plurality of points and / or at its free end region. As a result of the secure fastening, the clamp can be provided preassembled on the assembly. The resulting riveted joints are optionally loosened and possible damage to the preassembled clamps on the assembly is substantially eliminated.

The upper flange 3 is deformed of the penetrating member 9 such that a recess 12 is formed between the edge region of the opening 7 and the reinforcing pleats 10 to receive the deformed end of the penetrating member 9. The profile is formed in the area where the end lies.

In figure 3b it is shown that the flange 4 of the clamp shown in figure 3a has a screw which is guided through the opening 8. The screw heads lie on the riveted edges of the reinforcing pleats 10 and the penetrating member 9.

4 is a perspective view of the preassembled clamp 1. The flanges 3, 4 are reliably joined together by riveted joints formed by ends which are plastically deformed in the outward direction of the penetrating member 9.

In the exemplary embodiment shown, an elastomeric sheath 13 is provided in the fixing strip 2 surrounding the tightening end 11 to prevent any damage to the hose to which the holder is fixed. The center slit in the outer part makes it easier to pull the sheath 13 onto the fixing strip 2. Such coatings may be optionally dispensed for use on pipes. Especially in the case of pipes for high temperature media, in this case it is necessary to choose whether or not to use a sheath formed of a temperature-resistant material.

During final assembly, the tightening screw is guided through the openings formed in the penetrating member 9 and tightened to secure the hose passing through the tightening end 11. The head of the tightening screw can rest on the flange 3.

5-7 illustrate another exemplary embodiment of the present invention. In this exemplary embodiment, the penetrating member 9 is only slightly higher than the material thickness of the flange 3. In this case, the height of the penetrating member may be selected prior to the riveting process to be 0.3 to 0.8 mm depending on the material thickness and / or the type of material. In any case, the pre-assembled riveting must be sufficiently stable and robust so as not to prematurely loose, ie sufficient material is provided so that a force-locking connection is formed between the through member and the wall of the opening 7 at least during the riveting. It is important to be. If necessary, sufficient material may be provided to obtain a deformation of the side wall in the opening 7 in the manner of the undercut 14 through which the material of the penetrating member passes.

In another embodiment, it is also conceivable to form the free end of the penetrating member 9 to project upwardly above the flange 3 after riveting to have a slight protrusion 15.

During final assembly of the clamp, the head of the fastening screw lies on the protrusion and can release the penetrating member from the riveting. This makes it possible to simply release and detach the clamp for post release, for example repair.

In this embodiment, the force for riveting the penetrating member can typically be substantially reduced.

Claims (18)

As a clamp (1) for holding a hose, pipe, cable, etc., An annularly curved fixing strip 2 having a first end and a second end, two flanges 3, 4 connected to respective ends of the fixing strip 2, and tensioning means 7, respectively. In the clamp comprising openings 7, 8 in the flanges 3, 4 guided through it, At least one of the flanges 4 comprises a portion which forms a riveted joint between the flanges 3, 4, which portion is at least one deformable through which is formed on either flange 4. A member 9, the through member 9 is configured to be plastically deformable, The through member 9 can be configured in a ring shape on one flange 4 and guided through the opening 7 of the other flange 3, The free end of the through member 9 is deformed to form a riveted joint between the flanges 3, 4, The through member 9 is higher than the thickness of the material of the flange 3, The free end of the penetrating member 9 has a protrusion 15 which projects upwardly above the flange 3 after riveting, During the final assembly of the clamp, the set screw is guided through an opening formed by the penetrating member 9 and the head of the set screw is placed on the protrusion 15 so that the penetrating member 9 can be separated from the riveting. Clamp. delete 2. Clamp according to claim 1, characterized in that the through member (9) is configured in the area of the opening (8) on either flange (4). The clamp as claimed in claim 1, wherein the through member (9) extends from one flange (4) and through the opening (7) of the other flange (3). 2. The clamp as claimed in claim 1, wherein the through member extends vertically from either flange. 4. delete The clamp as claimed in claim 1, wherein a chamfer is provided at the free end of the through member. 2. The clamp as claimed in claim 1, wherein the penetrating member is configured to taper toward the free end of the penetrating member. 9. The clamp as claimed in claim 1, wherein the free end of the through member (9) is deformed outward and lies on another flange (3). The clamp (1) according to claim 1, characterized in that the clamp (1) has a profile for reinforcing the flange (3) in the region of the opening (7) in at least one of the flanges (3). The clamp as claimed in claim 10, wherein the profile comprises a reinforcing pleat (10) surrounding the opening (7) in a ring shape. delete delete The clamp as claimed in claim 1, wherein the free end of the penetrating member is supported in the opening of the flange in a force-locking manner. 2. The flange 3 on the screw head side is provided with an undercut 14 in the opening 7, and after the riveting process the free end of the penetrating member 9 extends outwards. Clamp which is deformed inward. delete delete delete

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