EP2437360B1 - Floor bridger - Google Patents

Description

The invention relates to floor jumper.

From the prior art floor bridges are known. These have a two-part structure in which two sheets or wires are placed on one side in a holder.

A disadvantage of these storey bridges is that they can tilt slightly during insertion and thereby creates an opening at the end not held. This opening often causes a shearing, so that the floor jumper is destroyed during the attempted insertion or is severely impaired in its function.

In order to address this disadvantage, attempts have often been made in the past to connect the unsung end as well. For this purpose, classical connection techniques such. B. soldering used.

Care had to be taken when inserting these connected storey bridges, too, because the probability of a breakup was minimized, but still dependent on the quality of the connection. Likewise, this further step was costly and error prone.

Other floor bridges also have one or more resilient arms in each floor to be contacted. Even with these can easily tilt during insertion, in which case there is also the problem that this canting can occur in each floor.

Furthermore, the production of such storey bridge is complex, since in multi-part components, the positioning of the respective parts to each other is of great importance.

In addition, the known floor bridges require a variety of tools - such as punching, bending and / or embossing trains - in the production, which also leads to increased production costs.

In addition, it is disadvantageous that multi-part components also means an increased storage costs for the basic parts for the production.

In particular, if the floors to be connected have only a small distance, the previous floor bridges are unsuitable because the available spring arms are no longer suitable to produce because of the possible processing and material tolerances.

The EP 0 388 058 A1 describes a bus-rail inter-layer connector having a lower bus bar configured to contact an upper bus bar. The lower rail comprises a front guide region and a middle region widened in contrast thereto. The lower rail has a longitudinal slot, so that the central region can be elastically compressed in order to force-fit the lower rail into an opening of the upper rail.

The EP 2 112 716 A2 describes a jumper with two juxtaposed flat contacts, which are positioned in a plane. Each of the contacts has a longitudinal slot and lateral projections in a central area on. Accordingly, the central region can be elastically compressed in order to force-fit the contacts into corresponding contact openings.

From the US 4 171 861 A is a jumper with two juxtaposed flat contacts known. Difference from the aforementioned EP 2 112 716 A2 is that the contacts are arranged in two levels one above the other.

The DE 102 55 674 A1 describes a cross jumper with several, juxtaposed contacts. Each contact is made of a flat sheet and is formed by bending to a tongue. The contact pin can be inserted under elastic deformation of the spring tongue frictionally in a recess.

Moreover, from the DE 83 11 219 U1 an electrical connection and / or connection terminal known. The clamp is designed for bridges of stacked superimposed terminals.

It is therefore an object of the invention to provide storey bridges, which solve a disadvantage or several disadvantages in an inventive manner.

The object is achieved by a floor jumper for the electrical bridging of two superimposed in the insertion direction contacts in a holder comprising a conductive portion for electrical bridging two superimposed contacts and a resilient portion which allows insertion and secure mounting, wherein the conductive portion and the resilient portion of the floor jumper is made in one piece, the conductive portion and the resilient portion form a flat enclosed space, and bulges are provided on the resilient portion, so that they can feather during insertion and so on the one hand allow insertion, on the other in the respective End position act so that the contact is made safely.

In a further embodiment of the invention, the floor jumper on an electrically non-conductive portion for insertion or removal in a floor clamp.

In still another embodiment of the invention, the conductive portion has one or more stops limiting the spring travel of the resilient portion.

In a further embodiment of the invention, the conductive portion has one or more stops, wherein the conductive portion or the conductive portions used in the inserted state for contacting an electrical contact / serve.

In a further embodiment of the invention, a resilient portion is also designed as a conductive portion.

In yet another embodiment of the invention, the resilient portion and the conductive portion are made of a material comprising copper.

In a further embodiment of the invention, the resilient portion and the conductive portion are at least partially pre-tinned.

In yet another embodiment of the invention, the floor jumper contains a separable section which merely serves for insertion and breaks off during pull-out tests.

The object is also achieved by a method for the production of floor bridges. This method points the step of punching a metallic material to form a metallic one-piece floor jumper blank.

In a further embodiment of the invention, the method comprises the step of overmolding one end of the metallic material, so that an electrically non-conductive portion for insertion or withdrawal takes place in a tier clamp.

The invention will be explained in more detail below with the aid of the figures.

Fig. 1

einen schematischen Querschnitt einer ersten Ausführungsform eines erfindungsgemäßen Stockwerksbrückers,

Fig. 2

einen schematischen Querschnitt einer ersten Ausführungsform eines erfindungsgemäßen Stockwerksbrückers im eigesteckten Zustand,

Fig. 3

ein Detail eines schematischen Querschnittes einer zweiten Ausführungsform eines erfindungsgemäßen Stockwerksbrückers,

Fig. 4

einen schematischen Ablaufplan eines erfindungsgemäßen Verfahrens zur Herstellung von Stockwerksbrückern, und

Fig. 5

schematische Querschnitte des Kontaktbereiches einer weiteren Ausführungsform eines erfindungsgemäßen Stockwerksbrückers.

In these shows:

Fig. 1

a schematic cross section of a first embodiment of a floor jumper according to the invention,

Fig. 2

a schematic cross section of a first embodiment of a floor jumper according to the invention in the plugged state,

Fig. 3

a detail of a schematic cross-section of a second embodiment of a floor jumper according to the invention,

Fig. 4

a schematic flow diagram of a method according to the invention for the preparation of floor bridges, and

Fig. 5

schematic cross-sections of the contact area of another embodiment of a floor bridge according to the invention.

In Fig. 1 a schematic cross-section of a first embodiment of a floor jumper according to the invention is shown.

This floor jumper for electrical bridging two superimposed contacts in a holder has a conductive portion 3 for electrically bridging two superimposed contacts and a resilient portion 4, which allows insertion and secure mounting. The conductive portion 3 and the resilient portion 4 of the floor jumper are made in one piece.

As a result, a simple method of manufacture is made possible by a single punching tool and at the same time prevents a prying open - as it was previously possible in two-storey storey bridges - by the principle conditionally excluded.

For this purpose, from a sheet 2 a floor jumper in a first step 100 (see schedule FIG. 4 ) punched. Here, both the outer shape and the clearance between the conductive portion 3 and the resilient portion 4 are made. The simultaneous production of both the outer shape and the free space in one step is preferred.

At the conductive portion 3 while areas 6 and 7 are provided, which have a wider area. These areas 6 and 7 are in the operating case - ie in the inserted state - essentially make contact with electrical contacts K1 and K2.

In this area, the holder should take place to establish a secure contact. Therefore, on the resilient portion 4 at approximately the same height as the contact areas 6 and 7 bulges provided so that they can spring during insertion and so on the one hand allow insertion, on the other hand in the respective end position act so that the contact between the contact areas 6 and 7 and the respective contact K1 and K2 is made safe.

Without going into this further, it goes without saying that a larger number of contact areas and associated spring areas can be provided on a floor jumper.

Furthermore, the sheet 2 may have an optional shaft 5. This shaft 5 may have a suitable outer shape, so that, for example, an electrically non-conductive portion 1 is held reliably and does not fall off, or it may have such a shape that although a single insertion is possible, but a withdrawal of the floor jumper is prevented by the electrically non-conductive portion 1 is withdrawn from the shaft 5, since the holding force of the resilient portion is greater than the holding force of the electrically non-conductive portion 1 on the shaft fifth

In an alternative form, it can also be provided that the shank has a predetermined breaking point 8 at which the electrically nonconducting section 1 can be broken off from the shank 5 so that only the lower section of the metal sheet 2 remains for contacting.

Fig. 2 shows a further schematic cross section of a first embodiment of a floor jumper according to the invention in the inserted state. From this figure it can be seen that the floor jumper can be used with a suitable design both in an initial direction as well as in a rotated around the symmetry lines by 180 ° alignment. This is achieved in that the contact regions 6 and 7 with respect to an upper bus bar 10 and a lower bus bar 11 are symmetrical to the symmetry line 11.

This reduces the possibility of errors and the installation of floor bridges is much easier. Furthermore, one or more stops 13 may be provided on a floor jumper according to the invention, which limit the spring travel of the resilient portion 4. As a result, the stability of the floor jumper can be increased.

Furthermore, these stops 13 can also serve in the inserted state for contacting an electrical contact.

The electrically nonconductive section 1 can be, for example, an encapsulation with a plastic material, which is applied in a step 200.

Since the floor jumper is made in one piece, also the resilient portion 4 can be designed as a conductive portion. This can be taken into account in the dimensioning.

Preferably, the floor bridges are made at least in their resilient portion 4 and its conductive portion 3 of a material having copper.

So z. As a metallic alloy can be used which has a copper content.

Furthermore, it can be provided that the resilient portion 4 and the conductive portion 3 are pre-tinned at least in sections. This can be z. B. be made possible by a pre-tinned sheet, from which the floor bridges are punched.

Figure 3 shows a detail of a schematic cross section of a second embodiment of a floor jumper according to the invention. In this floor jumper, both sections are symmetrical with respect to the symmetry line. Accordingly, both sections fulfill the function of a resilient portion 4 as well as a conductive portion. 4

It goes without saying that here again, a non-conductive portion 1 and a predetermined breaking point as well as stops 13 may be provided.

Although, in the above-mentioned embodiments, the upper contact portion K1 and the lower contact portion K2 have substantially the same width when not inserted, it may be provided that the upper contact portion K1 and the lower contact portion K2 have different widths when not inserted.

In particular, it is preferable that the upper contact portion K1 is wider than the lower contact portion K1.

This can be provided both at the floor bridges as well as at the corresponding contacts to be contacted.

A smaller width of the lower contact area of the floor jumper facilitates insertion.

In particular, it can thus be made possible that there is a common pressure point for both contact areas.

This is on the one hand for mounting advantageous because now the common pressure point signals the finished assembly to another but it also makes the lower contact area cheaper to design, since this no longer has to be designed for twice the number of mating cycles.

Such an embodiment is in Fig. 5 which shows schematic cross sections of the contact region of a further embodiment of a floor jumper according to the invention.

Here, the lower contact area shown on the left is designed so that the distance between the conductive portion 3 to the resilient portion 4 is selected to b + c, where c denotes the spring travel, while the upper contact area shown on the right, the passage through the contact a width of a having.

Since the passage width a at the upper contact 10 is greater than or equal to the spring-loaded lower contact region (b + c), the contact can be easily pushed through.

In particular, it can thus be made possible that there is a common pressure point for both contact areas.

This is on the one hand for mounting advantageous because now the common pressure point signals the finished assembly to another but it also makes the lower contact area cheaper to design, since this no longer has to be designed for twice the number of mating cycles.

LIST OF REFERENCE NUMBERS

Non-conductive section 1 sheet 2 Leading section 3 Feathering section 4 shaft 5, 9 contact area 6, 7 Breaking point 8th conductor rail 10, 12 line of symmetry 11 attack 13 Electrical contacts K1, K2

Claims (10)

1. A building floor jumper for electrical bridging of two contacts (K1, K2) that lie one on top of the other in the introduction direction, in a holder, having
   a conductive segment (3) for electrical bridging of two contacts (K1, K2) that lie one on top of the other, and
   a resilient segment (4) that allows introduction and secure holding, wherein
   the conductive segment (3) and the resilient segment (4) of the building floor jumper are structured in one piece,
   characterized in that
   the conductive segment (3) and the resilient segment (4) form a level, enclosed free space, and
   convexities are provided on the resilient segment (4), so that these can move resiliently during introduction, and thereby allow insertion, for one thing, and for another, act in the respective end position in such a manner that contact is reliably produced.
2. The building floor jumper according to claim 1, wherein the building floor jumper has an electrically nonconductive segment (1) for introduction into or removal from a building level terminal.
3. The building floor jumper according to one of the preceding claims, wherein the conductive segment (3) has one or more stops (13), which delimits [sic - singular verb] the spring path of the resilient segment (4).
4. The building floor jumper according to one of the preceding claims, wherein the conductive segment (3) has one or more stops (13), which serves [sic - singular verb] for contacting of an electrical contact (K1, K2) in the introduced state.
5. The building floor jumper according to one of the preceding claims, wherein the one resilient segment (4) is also structured as a conductive segment (3).
6. The building floor jumper according to one of the preceding claims, wherein the resilient segment (4) and the conductive segment (3) are produced from a material that contains copper.
7. The building floor jumper according to one of the preceding claims, wherein the resilient segment (4) and the conductive segment (3) are pre-tin-plated, at least in certain sections.
8. The building floor jumper according to one of the preceding claims, wherein the building floor jumper contains a removable segment that merely serves for introduction and breaks off during an attempt to pull it out.
9. A method for the production of building floor jumpers, having the step:

   punching (100) a metallic material, so that a metallic, one-piece building floor jumper blank (5, 8) is formed, wherein

   the building floor jumper blank (5, 8) has a conductive segment (3) for electrical bridging of two contacts (K1, K2) that lie one on top of the other, and a resilient segment (4) that allows introduction and secure holding,

   the conductive segment (3) and the resilient segment (4) form a level, enclosed free space, and

   convexities are provided on the resilient segment (4), so that these can move resiliently during introduction, and thereby allow insertion, for one thing, and for another, act in the respective end position in such a manner that contact is reliably produced.
10. The method according to claim 9, wherein the method furthermore has the step of extrusion-coating (200) one end of the metallic material, so that an electrically nonconductive segment (1) for introduction or removal is formed in a building level terminal.

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