DE7025551U - ROW CLAMP. - Google Patents

Description

The innovation relates to a series clamp, preferably made of plastic, for fixing electrical lines and / or pipes to retaining rails with an approximately C-shaped cross-section, consisting of a clamp body supported on the retaining rail and an anchor, the width of which is smaller and the length of which is greater than the width of the slot is the holding rail, which can be pivoted by rotating it through preferably about 90 ° under the slot edge parts of the holding rail.

In a known series clamp, a screw mounted in the clamp body engages through the anchor, with the aid of which the anchor can be pressed against the undersides of the slot edge parts of the support rail to fix the clamp body on the retaining rail.

It is also known to choose the width of the anchor smaller and the length of the anchor larger than the slot width of the retaining rail so that the anchor can be inserted from the front through the retaining rail slot in order to then pivot the anchor under the slot edge parts of the retaining rail.

Furthermore, an insulator fastening is known, the insulator being equipped with partial surfaces which can be brought into engagement with lugs or the like of the insulator carrier and which cause the insulator to be tightened on the insulator carrier when the insulator is rotated. While the first-mentioned series clamps are relatively expensive due to three separate parts to be produced and only relatively tedious to assemble, the sheath of a cable could be damaged and / or the position of the cable changed when the insulator also mentioned in the prior art is rotated.

The task of the innovation is now to create a series clamp of the type mentioned above, which is both economical to manufacture and is characterized by simple assembly and secure fixing of lines or the like, without the risk of damage to the lines by the series clamp when fixing consists.

The solution to this problem is characterized by the combination of the organs of the series clamp described above with an anchor, from which a fixed shaft struts, which can be rotated in the clamp body, which is prefabricated separately from the anchor, about an axis running transversely to the longitudinal extension of the retaining rail and axially displaceable via wedge surfaces and thereby presses the armature against the undersides of the retaining rail slot edge parts, the shaft preferably also being an integrally formed

Part of the anchor, also ends in a head axially supported on the clamp body with a wrench attachment, and the anchor has wedge surfaces corresponding to the undersides of the slot edge parts of the retaining rail.

This has the advantage that, on the one hand, only two individual parts now have to be prefabricated separately, and on the other hand, the clamp bodies remain at rest when tightened on the retaining rail. In addition, the advantages of known series clamps, namely the simple and quick possibility of fixing the series clamp on the retaining rail, are retained.

A variant of the above-described subject that is preferred and inventive under certain circumstances is that wedge surfaces that interact with the clamp body are arranged on the head of the anchor shaft.

Another advantageous and inventive feature facilitating the setting of the row clamps on the retaining rail is characterized in that, in the above-described object, the clamp body engages in the slot of the retaining rail and has projections that secure the clamp body against rotation.

To substantially simplify the assembly of the individual row clamp parts, an advantageous and inventive feature is characterized in that the clamp body has a snap-in slot for the anchor shank that extends in the axial direction of the pivot bearing.

Embodiments of the innovation are shown in the drawing and are described in more detail below.

Show it:

1 shows a row clamp in the front view, FIG. 2 likewise inserted in a side view in a retaining rail, FIG. 3 likewise seen in section A-B of FIG. 1, FIG. 4 another embodiment in the front view.

These plastic series clamps for securing electrical lines or the like to retaining rails 1 with approximately C-shaped cross-section each consist of a clamp body 2 that can be supported on the retaining rail 1 and an armature 4 that can be gripped under the mutually facing edge parts 3 of the retaining rails 5, which ends in a head 6 supported on the upper end face of the clamp body 2. In the latter, a key approach 7 is provided. The shaft 5 is rotatably mounted in the clamp body 2 about an axis running at right angles to the longitudinal extension of the holding rail 1. Furthermore, in FIGS. 1-3, wedge surfaces 8 corresponding to the undersides of the edge parts 3 are formed on the armature 4, which cause the row clamp to be tightened on the holding rail 1 when the armature 4 is rotated by approx. 90 °. The clamp body 2 is secured against rotation by projections 10 engaging positively in the slot 9 of the retaining rail 1.

To achieve a high level of positional security for a line 11 clamped between two adjacent row clamps, the clamp body 2 has constrictions 12 on two sides facing away from one another.

In Figure 4, the wedge surfaces are arranged on the side of the head facing the clamp body 2. The clamp bodies 2 of both embodiments each have a slot 13 through which the shaft 5 can be forced into its pivot bearing.

Claims (5)

1. Series clamp, preferably made of plastic, for securing electrical cables and / or pipes to retaining rails with approximately C-shaped cross-section, consisting of a clamp body that can be supported on the retaining rail and an anchor whose width is smaller and whose length is greater than the width of the slot to the retaining rail , which can be pivoted by rotating preferably 90 ° under the slot edge parts of the retaining rail, characterized by the combination of these organs with an anchor (4), from which a fixed shaft (5) struts, which is prefabricated in the separately from the anchor (4) Clamp body (2) is rotatable about an axis running transversely to the longitudinal extension of the retaining rail (1) and axially displaceable via wedge surfaces (8) and thereby presses the armature (4) against the undersides of the retaining rail slot edge parts (3). 2. Series clamp according to claim 1, characterized in that the shaft (5) is an integrally formed part of the armature (4), also ends in a head (6) axially supported on the clamp body (2) with a key extension (7) and the Anchor (4) has wedge surfaces (8) corresponding to the undersides of the slot edge parts (3) of the retaining rail (1). 3. Series clamp according to one or both of the preceding claims, characterized in that the head (6) of the anchor shaft (5) with the clamp body (2) cooperating wedge surfaces (8) are arranged. 4. Series clamp according to one or more of the preceding claims, characterized in that the clamp body (2) in the slot (9) of the retaining rail (1) engaging, and the clamp body (2) against rotation locking projections (10). 5. Row clamp according to one or more of the preceding claims, characterized in that the clamp body (2) has a snap-in slot (13) for the anchor shaft (5) extending in the axial direction of the pivot bearing.