EP2654127A1 - Retaining clip for holding objects, in particular shielded cables - Google Patents

Abstract

The clip (10) has a foot portion (11) fastened at a carrier, and two legs (12, 13) connected at opposed sides of the foot portion for clampingly holding an object. Portions (16.1, 16.2, 17) of the legs are movable with each other. The legs comprise bulge parts (14, 15) for retaining the object. One of the legs is provided with an aperture (18). The portions of the legs comprise recesses for clamping a pin-shaped guide that is inserted between free ends of the legs, where the clip is made of spring steel and coated with an electrically conductive material.

Description

The invention relates to a retaining clip for the clamping support of objects with a fastened to a carrier foot and at least two on opposite sides of the foot part connected thereto legs for clamping support of the object.

There are known fastening devices for forming an electrical and / or mechanical connection between a busbar, mounting plate or conductive mounting surface and an object. Such fastening devices often have brackets for receiving the objects, in particular electrical lines, which are arranged directly on a busbar, mounting plate or conductive mounting surface. If electrical lines or pipes of different diameters are to be electrically and / or mechanically connected to the busbar, mounting plate or conductive mounting surface, then separate fastening devices must be provided for each diameter.

In the unpublished German patent application DE 10 2010 052 733 It is proposed to provide at least one support which can be arranged on the busbar, mounting plate or conductive mounting surface and designed such that a foot part of a clip can be received latching. The brackets described in this application are brackets having a foot portion and two legs, the legs extending from the foot portion. The legs each have a bulge, wherein between the bulges of the legs a space is formed in which an object, in particular an electrical line, can be arranged. Over the bulges, the legs touch when no object is held. This limits the minimum size of the opening. Objects with a smaller diameter than the opening can thus not be clamped. Objects whose diameter is larger than that of the opening, can be clamped, and there is also an upper limit, which has to do with the expandability of the clip.

Object of the present invention is to develop the known retaining clip such that objects over a larger diameter range can be clamped by the clip.

This object is achieved according to the invention by a retaining clip for clamping support of objects with a mountable to a support foot and at least two on opposite sides of the foot part with this connected legs for clamping support of the article, wherein portions of the legs are moved past each other. The fact that portions of the legs are moved past each other, the legs can in the region of the clamping area closer to each other than was possible in the prior art. This also allows objects with smaller dimensions, in particular smaller diameter, to be held in a clamping manner. Preferably, the retaining clips according to the invention are used in the mounting of shielding cables.

According to a preferred embodiment it can be provided that at least one of the legs is narrower in a section than the foot part. For example, the other leg could be slotted in this case, the slot width being slightly larger than the width-reduced portion of the other leg. With the part reduced in width, one leg could thus be moved through the other leg, as it were.

It is particularly preferred if the limbs have bulges for receiving the object, wherein the bulges are arranged closer to the foot than the sections which can be moved past one another. The bulges, which may have the same width as the foot, together form the opening in which the object can be accommodated. In particular, an approximately circular opening can be achieved by the bulges, so that, for example, electrical lines, pipes or the like can be clamped. The region of the legs, in which the bulges are provided, corresponds to the clamping region of the retaining clip.

According to an advantageous embodiment of the invention can be provided that one of the legs has an opening and the other leg passes through this opening with a section. The opening may be slit-shaped. The legs may be angled in the region of the opening. In particular, an angled section a leg which is reduced in width relative to the foot part, be passed through the opening of the other leg, which is also angled in the region of the opening. This makes it possible to approximate the bulges of the legs closer to each other, as would be the case if the corresponding opening and width reduction of the legs would not be present.

According to a further embodiment it can be provided that the legs are each formed in a section with a smaller width than the foot part and the sections overlap. In particular, each leg may have in a section about half the width of the foot part. As a result, the legs can be moved past each other, without thereby increasing the width of the retaining clip is increased.

The overlapping portions may also have indentations for clamping a pin-shaped insertion aid insertable between the free ends of the legs. This embodiment is particularly advantageous when objects with a very large diameter, such as thick cables to be held with the clip. By using the introducer, which may be a screwdriver, for example, the staple may be pre-widened, greatly facilitating subsequent insertion of the article between the free ends of the legs of the staple.

Particular advantages arise when the clip is expandable in the region of the legs against a restoring force. As a result, the legs can be moved apart so far that an object to be fastened can be introduced between the legs and clamped in the region of the bulges.

These resilient properties of the retaining clip can be particularly easily realized by the retaining clip is formed of spring steel.

If the retaining clip in the transition region from the foot part to at least one leg has a recess, the restoring force of the retaining clip can be adjusted by the size of the recess.

The foot part may preferably have a bottom plate, to which connect obliquely upwardly directed portions on both sides, which merge into a bent portion. The bottom plate is used to attach the clip to a support. The obliquely upward portions allow a strong spreading apart of the legs of the retaining clip without obstruction by the wearer. The spring travel of the two legs is thereby increased. In addition, the two inclined portions prevent bulging of the bottom plate when spreading apart of the legs. The attachment of the bottom plate is therefore not burdened when spreading the legs. The bent sections go over into the legs of the retaining clip.

If space permits, the legs may also have at their free ends an insertion aid formed by an extension of the ends. As a result, the expansion of the legs is facilitated and facilitates the introduction of an object in the clamping area. In the area of the free ends or in the region of the insertion aids, predetermined breaking points can be provided. Thus, free ends that protrude laterally when holding large diameter objects and collide with adjacent objects or staples can be easily separated. Alternatively or additionally, the free ends can be bent over so that they can be gripped more easily so that the retaining clips, in particular for inserting a large-diameter object, can be widened manually. Other embodiments of the free ends as gripping portions are conceivable.

It is particularly advantageous if the retaining clip is coated with an electrically conductive material. For example, the retaining clip may be galvanized, nickel-plated or gold-plated. This is z. B. possible to derive currents of cable shields.

The foot part may have a fastening means. In particular, the foot part can have an opening, via which the retaining clip can be fastened to a support, for example by means of a screw or by means of a rivet. The opening may be formed as anti-rotation, so in particular not circular, so that the retaining clip rotatably z. By a rivet z. B. can be attached to a support. The opening can z. B. have one or more projections, be formed non-circular or asymmetrical.

In the scope of the invention also relates to a fastening device for forming an electrical and / or mechanical connection between a busbar, mounting plate or conductive mounting surface and an object, with a retaining clip according to the invention, wherein the fastening device comprises at least one carrier, on the busbar, mounting plate or conductive mounting surface can be arranged and adapted to receive the foot of the retaining clip latching. In such a fastening device only need different brackets for different diameters are provided, while the carriers can be made identical for all diameters. Due to the inventive design of the brackets even fewer different brackets must be kept as this is necessary in the prior art.

The carrier, since the clip is connected via a latching connection with the carrier, even in the case of an exchange of the electrical line to the bus bar, mounting plate or conductive mounting surface remain. If a user wants to connect an electrical lead of a different diameter to the bus bar, mounting plate, or conductive mounting surface that is outside the clampability of the just-installed clamp, then only the clamp needs to be changed. The same carrier can be used.

The busbar, mounting plate or conductive mounting surface can in particular be a busbar, mounting plate or conductive mounting surface arranged on a control cabinet. Under busbar, mounting plate or conductive mounting surface, however, any electrical conductors, such as busbars, cables or electrical conductors of a board understood.

It can be provided with differently sized legs, but equal foot parts in a fastening device several retaining clips.

Further features and advantages of the invention will become apparent from the following description of embodiments of the invention, with reference to the figures of the drawing, which show details essential to the invention, as well as from the claims. The features shown there are not necessarily to scale and presented in such a way that the features of the invention can be made clearly visible. The various features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

Fig. 1

eine perspektivische Ansicht einer ersten Ausführungsform einer Halteklammer;

Fig. 2

eine Ansicht von vorn der ersten Ausführungsform einer Halteklammer;

Fig. 3

eine Ansicht von links auf die Halteklammer der Fig. 1;

Fig. 4

eine Ansicht von rechts auf die Halteklammer der Fig. 1;

Fig. 5

eine Ansicht von unten auf die Halteklammer der Fig. 1;

Fig. 6

eine perspektivische Ansicht einer alternativen Ausgestaltung einer Halteklammer;

Fig. 7

eine Ansicht von vorn der Halteklammer der Fig. 6,

Fig. 8

eine Ansicht von links der Halteklammer der Fig. 6;

Fig. 9

eine Ansicht von rechts der Halteklammer der Fig. 6;

Fig. 10a

eine Halteklammer mit einem Gegenstand, der auf der Halteklammer aufliegt, ehe er in den Klemmbereich gelangt;

Fig. 10b

eine Halteklammer, die einen relativ kleinen Gegenstand klemmend hält;

Fig. 10c

eine Halteklammer, die einen Gegenstand mit größerem Durchmesser klemmend hält;

Fig. 11a

eine weitere Ausgestaltung einer Halteklammer;

Fig. 11b

eine Ansicht der Halteklammer aus Fig. 11a mit eingeführter Einführhilfe.

In the schematic drawing embodiments of the invention are illustrated and explained in more detail in the following drawings.
Show it:

Fig. 1

a perspective view of a first embodiment of a retaining clip;

Fig. 2

a front view of the first embodiment of a retaining clip;

Fig. 3

a view from the left on the retaining clip of Fig. 1 ;

Fig. 4

a view from the right on the retaining clip the Fig. 1 ;

Fig. 5

a bottom view of the retaining clip the Fig. 1 ;

Fig. 6

a perspective view of an alternative embodiment of a retaining clip;

Fig. 7

a front view of the retaining clip the Fig. 6 .

Fig. 8

a view from the left of the retaining clip the Fig. 6 ;

Fig. 9

a view from the right of the retaining clip the Fig. 6 ;

Fig. 10a

a retaining clip with an object which rests on the retaining clip before it enters the clamping area;

Fig. 10b

a retaining clip that clamps a relatively small object;

Fig. 10c

a retaining clip that clampingly retains a larger diameter article;

Fig. 11a

a further embodiment of a retaining clip;

Fig. 11b

a view of the retaining clip Fig. 11a with inserted introducer.

The Fig. 1 shows a perspective view of a retaining clip 10 with a foot part 11 and arranged on one side of the foot part 11 leg 12 and an opposite arranged on the other side of the foot part 11 legs 13. The legs 12, 13 extend from the foot part 11 upwards. The legs 12, 13 each have a bulge 14, 15 in a clamping region, wherein an opening is formed by the bulges 14, 15, which serves for receiving an object, for example an electrical line or a pipe. About the bulges 14, 15, the legs 12, 13 bent portions 16.1, 16.2 and 17 on. In this case, the portion 17 projects into a slot-like recess 18 of the leg 12. The slot-shaped recess 18 is bounded by the sections 16.1, 16.2. The width of the portion 17 is reduced with respect to the width of the foot part 11.

The legs 12, 13 can be widened. This means that the sections 16.1, 16.2 and 17 can be moved past each other, to such an extent that an object can be pushed in from above up to the bulges 14, 15.

The free ends 19, 20 of the legs 12, 13 are formed as insertion aids and facilitate the insertion of an article in the opening formed by the bulges 14, 15. Due to the fact that the section 17 can dip into the slot-shaped recess 18, the bulges 14, 15 can be moved closer to one another than would be the case if the slot-shaped opening 18 were not present. Thus, a smaller opening can be defined by the bulges 14, 15.

Of the Fig. 1 can also be seen that the foot part 11 below the bulges 14, 15 recesses 21, 22 has. Through the recesses 21, 22, the material in the foot part 11 is weakened. As a result, the spring action of the legs 12, 13 can be adjusted.

As an attachment means 23, an opening in the bottom part 24 of the foot part 11 is provided.

The Fig. 2 shows a view from the front and the Fig. 3, 4 show views from the side on the retaining clip 10 of the Fig. 1 , The same reference numerals are used as in the Fig. 1 ,

In the Fig. 2 It can be seen that the legs 12, 13 are therefore movable relative to one another, for example, since they are connected to curved sections 25, 26 of the foot part 11. Through the curved Sections 25, 26 and the bottom part 24 of the foot part 11, a cavity is defined, which is surrounded by the foot part 11.

The Fig. 3, 4 it can be seen that the retaining clip 10 has a uniform width over the entire height. In particular, it can also be seen that both the sections 16.1, 16.2 and the section 17 of the legs 12, 13 have a smaller width than the width of the foot part 11.

In the Fig. 5 showing a view from below, the fastener 23 is clearly visible.

The Fig. 6 11 shows a perspective view of an alternative embodiment of a retaining clip 100 with a foot part 111 and a leg 112 arranged on one side of the foot part 111 and a leg 113 arranged opposite on the other side of the foot part 111. The legs 112, 113 extend from the foot part 111 up. The legs 112, 113 each have a bulge 114, 115 in a clamping region, wherein an opening is formed by the bulges 114, 115, which serves for receiving an object, for example an electrical line or a pipe. About the bulges 114, 115, the legs 112, 113 kinked sections 116 and 117 on. The width of the sections 116, 117 is reduced relative to the width of the foot part 111. In particular, the sections 116, 117 only about half the width of the foot part 111, wherein the portion 117 in the front and the portion 116 in the rear half of the retaining clip 100 is disposed.

The legs 112, 113 can be widened. This means that the sections 116 and 117 can move past each other. The free ends 119, 120 of the legs 112, 113 are formed as insertion aids and facilitate the insertion of an article in the opening formed by the bulges 114, 115. By allowing the portions 116, 117 to overlap and move past each other, the bulges 114, 115 can be moved closer to each other than would be the case if the portions 116, 117 were not width-reduced. Thus, by the bulges 114, 115 a smaller opening can be defined.

Of the Fig. 6 can also be seen that the foot portion 111 below the bulges 114, 115 recesses 121, 122 has. Through the recesses 121, 122, the material in the foot 111 is weakened. As a result, the spring action of the legs 112, 113 can be adjusted.

As a fastening means 123, an opening in the bottom part 124 of the foot part 111 is provided.

The Fig. 7 shows a view from the front and the Fig. 8, 9 show views from the side on the retaining clip 110 of the Fig. 6 , The same reference numerals are used as in the Fig. 6 ,

In the Fig. 7 It can be seen that the legs 112, 113 are therefore movable relative to one another, for example, since they are connected to curved sections 125, 126 of the foot part 111. By the bent portions 125, 126 and the bottom portion 124 of the foot part 111, a cavity is defined, which is surrounded by the foot part 111.

The Fig. 8, 9 it can be seen that the retaining clip 110 has a uniform width over the entire height. In particular, it can also be seen that both the section 116 and the section 117 the legs 112, 113 have a smaller width than the width of the Fußteits 111th

In the Fig. 10a is the retaining clip 10 to see, with an object 200 on the insertion aids 19, 20, which are aligned obliquely to the vertical, is placed. Now, if the object 200 is pressed down, so the legs 12, 13 widen, so that the opening between the bulges 14, 15 is increased. The sections 16.1, 16.2 and 17 are thus moved past each other until there is no overlap of the legs 12, 13 more.

The Fig. 10b shows the retaining clip 10 with an object 201 which is received in the clamping area between the bulges 14, 15. The article 201 is so small that the legs 12, 13 still overlap or the sections 16.1, 16.2 and 17 mesh with each other.

In the Fig. 10c another illustration is shown in which the object 200 is held clamped. Here, the legs 12, 13 expanded so far that the legs or sections 16.1, 16.2 and 17 no longer interlock and no longer overlap. Based on Fig. 10b, 10c However, it can be seen that the retaining clip 10 is adapted to receive objects 200, 201 of different diameters and clamped.

In Fig. 11a a further retaining clip 210 is shown, similar to the retaining clip 100 has a foot 211, two legs 212, 213 with overlapping portions 216, 217 and free ends 219, 220 has. However, the ends 219, 220 of the legs 212, 213 are significantly shorter than in the retaining clip 100, so that the retaining clip 210 requires only little installation space upwards. So that nevertheless an object easily can be inserted between the legs 212, 213, recesses 230, 231 are provided in the overlapping portions 216, 217. Their function clarifies Fig. 11b , Between the short free leg ends 219, 220, a pin-shaped insertion aid 250 can be introduced, thereby pushing apart the overlapping leg sections 216, 217 until they lock with the indentations 230, 231, such as Fig. 11b shows. Above the insertion aid 250, the free legs 219, 220 are now wide open, so that even a large object can easily be inserted between them and then clamped between the sections 214, 215 (not shown). When inserting the object, the clamping holder of the insertion aid 250 loosens so that it falls down and can be removed.

Another feature of the retaining clip 210 is the design of its foot 211. This has a bottom plate 224 and then obliquely upwardly directed portions 227, 228, which merge into bent portions 225, 226. By the obliquely upwardly directed portions 227, 228, the retaining clip 210 can be widely spread in the assembled state in which the bottom plate 224 rests on a support, without the carrier would hinder this. The retaining clip 210 is therefore particularly suitable for clamping very large objects.

Claims (14)

Retaining clip (10, 100, 210) for the clamping support of objects (200, 201) with a foot part (11, 111, 211) which can be fastened to a carrier and at least two on opposite sides of the foot part (11, 111, 211) connected thereto Legs (12, 13, 112, 113, 212, 213) for the clamping support of the object (200, 201), characterized in that portions (16.1, 16.2, 17, 116, 117, 216, 217) of the legs (12, 13, 112, 113, 212, 213) are movable past each other. Retaining clip according to claim 1, characterized in that at least one of the legs (12, 13, 112, 113, 212, 213) is narrower in a portion than the foot part. Retaining clip according to one of the preceding claims, characterized in that the legs (12, 13, 112, 113, 212, 213) have bulges (14, 15, 114, 115, 214, 215) for receiving the object (200, 201) wherein the bulges (14, 15, 114, 115, 214, 215) are arranged closer to the foot than the sections (16.1, 16.2, 17, 116, 117, 216, 217) which can be moved past one another. Retaining clip according to one of the preceding claims, characterized in that one of the legs (12) has an opening (18) and the other leg (13) passes through this opening (18) with a section (17). Retaining clip according to one of the preceding claims, characterized in that the legs (12, 13, 112, 113, 212, 213) each in a portion (17, 116, 117, 216, 217) having a smaller width than the foot part (11 , 111, 211) and the sections (116, 117, 216, 217) overlap. Retaining clip according to claim 5, characterized in that the sections (216, 217) indentations (230, 231) for clamping a pin-shaped, between the free ends (219, 220) of the legs (212, 213) insertable insertion aid (250). Retaining clip according to one of the preceding claims, characterized in that the clip (10, 100, 210) in the region of the legs (12, 13, 112, 113, 212, 213) is expandable against a restoring force. Retaining clip according to one of the preceding claims, characterized in that the retaining clip (10, 100, 210) is formed from spring steel. Retaining clip according to one of the preceding claims, characterized in that it has a recess (21, 22, 121, 122) in the transition region from the foot part (11, 111) to at least one leg (12, 13, 112, 113). Retaining clip according to one of the preceding claims, characterized in that the foot part (211) has a flat bottom plate (224) adjoined on both sides by obliquely upwardly directed portions (227, 228) which merge into bent portions (225, 226) , Retaining clip according to one of the preceding claims, characterized in that the legs (12, 13, 112, 113) have at their free ends an insertion aid (19, 20, 119, 120) formed by an extension of the ends. Retaining clip according to one of the preceding claims, characterized in that the retaining clip (10, 100, 210) is coated with an electrically conductive material. Retaining clip according to one of the preceding claims, characterized in that the foot part (11, 111, 211) has a fastening means (23, 123). Fastening device for forming an electrical and / or mechanical connection between a busbar, mounting plate or conductive mounting surface and an object (200, 201), comprising a retaining clip (10, 100, 210) according to one of the preceding claims, wherein the fastening device comprises at least one support mountable on the bus bar, mounting plate or conductive mounting surface and adapted to latchingly receive the foot portion (11, 111, 211) of the retaining clip (10, 100, 210).

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