EP0860837B1 - Insulator and adaptor for wires, tapes or strands under electrical tension for mounting and manufactoring fences - Google Patents

Abstract

The isolator (1) has an electrically insulating fixing part (2,3), e.g. of injection moulded plastics, receiving a screw for securing the isolator to a fence post, the fixing part used for securing the voltage wire. The fixing part has a T-shaped opening provided by 2 perpendicular slits (7,8), the screw having a widened head with a pair of parallel side faces, fitting into the T-shaped opening, which prevents its relative rotation.

Description

Technical field:

The invention relates to insulators for electric wires or wires Tapes or ropes for fitting and / or manufacturing fences, in particular Pasture fences, consisting of an electrically insulating holding part, which a Screw or bracket for screwing in or screwing on or fastening the Has insulator on a post, in particular wooden post, the holding part is designed to hold the wire or ribbon or rope, according to the Preambles of claims 1 and 8 and the use of an adapter For this.

State of the art:

They are such insulators for electric wires or wires Fences are known in which the screw for holding within a post For example, a wooden post, is firmly integrated in the plastic part. The Screw is poured into the insulator during the manufacturing process and thus forms an integral part of the isolator. This configuration has the disadvantage that when the insulator is replaced because it is the same for example destroyed or too badly affected by the weather, the insulator and its mounting part, the screw, must be replaced. This means significant additional costs because normally the screw is not impaired and could therefore actually remain in place.

DE-3730400-A1 is a housing with slots for in and Unscrewing pasture fence insulators has become known. The hook-shaped Electric fence insulator has a threaded bolt, which one Has screw thread and at the other end bent in a U-shape Insulator head carries; the insulator head is firmly connected to the threaded bolt. The housing is used to screw the insulator into a post on the Insulator head pushed on and turned; then the housing is removed.

A pasture fence insulator has become known from EP-0307350-A2 which is a threaded hook for wood or steel in an insulating plastic holder inserted and screwed in by turning through the isolator can be. The hook screw must be used to replace the insulator head only then be unscrewed or unscrewed from the mast the insulator head can be removed.

DE-OS 2242147 includes an insulator for electric pasture fences, at which a steel pin is hammered into an insulator head, the Insulator head can no longer be replaced. If the isolator head is on the Pressed pin, it is firmly connected to the pin.

From FR-948651 a pasture fence isolator has become known an insulator head with a nail that has a rectangular head has, so that when driving the nail into a wooden post on the Insulator nail shaft is clamped. Here too is to solve the Isolators require the previous removal of the nail, which is difficult to do is accomplished because the nail head after sinking into a recess can no longer be easily taken.

Technical task:

The invention has for its object an insulator for electrical Live wires or bands or ropes for the production of fences to improve the genus mentioned in such a way that when exchanged only the actual insulator part needs to be replaced and the Screw can remain in place while still in order; the attachment of the insulator to the post should also be easier to accomplish be known as pasture fence isolators.

Disclosure of the invention and its advantages:

The solution to the problem is that the holding part is a T-shaped in plan view Has recess from two perpendicular slots and the screw has one with a shaft and a widened head at least two mutually parallel side surfaces or key surfaces, especially wood screw, for the suitable, preferably clamping and non-rotating, releasable insertion of the shaft with the head perpendicular to the longitudinal axis the screw into the recess, which is a bed for the head and forms the end part of the shaft of the screw, the recess of the slots is T-shaped in plan view in the direction of insertion of the screw, and the one slot of the recess at most the clear width of the diameter of the Has screw shaft and outwards from two sides of the holding part is open and the other slot is at most the clear width of the height of the screw head has and open to the outside only from one side of the holding part is.

In a preferred embodiment, the holding part is a plastic injection-molded part, which consists of a head for holding the wire and a molded on it Base part is in which the T-shaped recess is made.

The isolator according to the invention has the advantage that the isolator head Isolator is designed interchangeable from the outset, so that the hook part is not needs to be unscrewed more. Defective insulators do not have to more completely replaced, but the screw can be on the post remain as long as it is still in order. Only the old isolator or Insulator head removed and a new one put on the screw. Of Another simple and quick assembly of the invention Isolators possible because the screw is using a wrench, or a riddle with a nut and TORX or a cordless battery screwdriver Nut or also easily screwed into a wooden post, for example and then the insulator can be put on. Likewise, the Screw are welded to an iron post without the Isolator is destroyed because it is only then plugged on.

The screws used can be inexpensive hexagon standard screws be, the T-shaped recess as a snap good fit, which can also be jammed, of the insulator on the screw accomplished. Since the length of the slot that is used to hold the head, corresponds to the width across flats of the screw, the insulator sits after the Put on the screw against rotation on the same, so that when turning of the insulator, for example by hand, now take the screw with it and rotated further into the post and especially the insulator on it Way can be aligned.

Because of the separation of insulator and carrier according to the invention, namely Screw, the isolator is much cheaper to manufacture because only the Insulator as such needs to be replaced if it is defective. As well the isolator according to the invention is more environmentally friendly since the old isolator bracket no longer remain in the pastures. The insulators to be replaced can simply put it in your pocket and put it in the trash at home.

In a further embodiment according to the invention, the base part of the insulator can be designed as a cylinder or a cuboid, from the lower surface of which the Slots for receiving the screw are guided, the slot for Receiving the screw shaft to the outside both to the top surface and to the cylinder surface of the cylinder or one of the side surfaces of the cuboid and the slot for receiving the screw head to the outside only for Cover surface is open.

Conversely, the base part can be designed as a cylinder or as a cuboid whose cylindrical surface or one of the side surfaces from the slots Recording the screw are guided, the slot for receiving the Screw shaft to the outside of both the cylinder surface and Top surface of the cylinder or to one of the side surfaces and the top surface of the Cuboid and the slot for receiving the screw head to the outside only for Cylinder jacket surface or one of the side surfaces is open.

In a further embodiment according to the invention, the holding part or the Entire insulator consist of an elastic material, in which Hold part as a recess for the screw in the direction of insertion cylindrical blind hole is introduced, which is located at the inner end inside the holding part for receiving the screw head widened, and jamming but detachable plugging of the insulator onto the screw head and the screw shaft of the screw, so that in the top view of a cut through a plane in which the longitudinal axis of the blind hole lies is designed T-shaped together with the end widening. Also in In this case, the widened end of the blind hole can be at least two have mutually parallel surfaces to prevent rotation of the screw head. In this way, isolators can also be used that are made of Rubber or rubber mixtures are made, which is advantageous here Screw a round, and if necessary lenticular, slotted head with at least two mutually parallel side surfaces, so that the Insulator can be slid more easily over the screw head of the screw, until the screw head in the end widening of the blind hole is secured against rotation locks.

The task is further solved by an insulator for electrical Live wires or tapes or ropes for assembly and / or manufacture of fences, especially pasture fences, consisting of an electric insulating holding part, which has a holder for attaching the insulator has a post, the holding part for holding the wire or tape or rope is formed, wherein the holding part is a T-shaped in plan view Has recess from two perpendicular slots and the one slot is open to the outside from two sides of the holding part, the other Slot is open to the outside only from one side of the holding part, the Bracket is an adapter, which is T-shaped in plan view at one end Extension from a web and a transverse surface arranged thereon has, by means of the same the adapter in the T-shaped recess of the two perpendicular slots of the holding part, which a receiving bed form for the T-shaped extension, can be inserted appropriately, the adapter is cylindrical or cuboid and directly opposite the extension has a rounded or cambered groove at the end, and that through the Adapter is guided at least one hole for performing a Cable tie for attaching the adapter to a pole or pipe.

Furthermore, the object is achieved by using an adapter according to claim 11.

Figur 1

eine Ansicht eines Isolators, bestehend aus einem Halteteil, welches in einen Kopf und ein Basisteil unterteilt ist

Figur 2

eine Draufsicht auf Figur 1

Figur 3

einen Schnitt längs der Schnittlinie A-A in Figur 1

Figur 4

einen Schnitt längs der Schnittlinie B-B in Figur 1 zusammen mit einer Normschraube

Figur 5

ein Beispiel eines Ringisolators in einer Seitenansicht ohne Schraube

Figur 6

eine um 90 Grad gedrehte Ansicht der Figur 5

Figur 7

eine Draufsicht auf Figur 5

Figur 8

einen Schnitt längs der Linie A-A in Figur 5 mit Schraube

Figur 9 a, b und c

einen Adapter, der in Zusammenhang mit dem Isolator verwendbar ist, wobei Adapter und Isolator zusammengekoppelt werden können und der Adapter mittels Kabelbinder an einem Pfahl oder Metallrohr befestigt werden kann

Figur 10

eine Ansicht eines weiteren Isolators für Bänder oder Seile

Figur 11

eine um 90 Grad gedrehte Ansicht der Figur 10

Figur 12

eine Draufsicht auf Figur 10 und

Figur 13

einen Schnitt längs Linie A-A in Figur 10 mit Schraube und

Figur 14

eine Ansicht eines weiteren Isolators.

Brief description of the drawing, showing:

Figure 1

a view of an insulator consisting of a holding part, which is divided into a head and a base part

Figure 2

a plan view of Figure 1

Figure 3

a section along the section line AA in Figure 1

Figure 4

a section along the section line BB in Figure 1 together with a standard screw

Figure 5

an example of a ring insulator in a side view without a screw

Figure 6

5 shows a view of FIG. 5 rotated by 90 degrees

Figure 7

a plan view of Figure 5

Figure 8

a section along the line AA in Figure 5 with screw

Figure 9 a, b and c

an adapter that can be used in conjunction with the isolator, the adapter and isolator can be coupled together and the adapter can be attached to a post or metal pipe using cable ties

Figure 10

a view of another insulator for tapes or ropes

Figure 11

10 shows a view of FIG. 10 rotated by 90 degrees

Figure 12

a plan view of Figure 10 and

Figure 13

a section along line AA in Figure 10 with screw and

Figure 14

a view of another insulator.

WAYS OF CARRYING OUT THE INVENTION:

According to FIGS. 1 to 4, an insulator 1 is made in a manner known to this extent formed an approximately cylindrical holding part, which integrally from one to Part consists of a frustoconical head part 2 and a cylindrical base part 3. As such, the head part 2 and the base part 3 are rotationally symmetrical the head part 2 in a known manner above the can have truncated cone-shaped insulating rings 4, 17. the headboard 2 has a circumferential groove 20 in the transition to the base part 3 Enlargement of the insulation distance. From above is in the top surface of the Head part 2 an oblique groove 5 in the direction of a diameter let in for the introduction of a wire carrying an electrical voltage leads. In section plane A-A shown in Figure 3 it can be seen that to snap the wire into the groove 5 the same at its bottom is widened conically in radial directions so that it slides out of the wire is prevented after insertion into the groove 5.

A recess is made in the base part 3, which is seen from above from below - or in the section shown in Figure 4 along the line B-B in Figure 1 - T-shaped. The recess consists of two to each other vertically directed slots 7, 8 for matching or clamping Inclusion of a screw 16, consisting of screw shaft 9 and widened screw head 10. Both slots 7, 8 go from the lower Cover surface 18 of the base part 3, the slot 7 for receiving the Shank 9 of the screw 16 both from the top surface 18 and by 90 Degree for this from the jacket wall 19 of the base part 3 to the outside is open. The transverse slot 8, which runs transversely to the slot 7, is, however only open to the outside from the top surface 18 of the base part 3, as is natural also towards the slot 7, and is used for inserting and receiving the Screw head 10 of the screw 16. The slot 7 has at most one clear width according to the diameter of the screw shaft 9. The transverse slot 8 has a clear width of at most the height of Screw head 10 and a length of the wrench size of the screw head 10. The insulator 1 sits perpendicular to the screw 16 on this, or the central axes of insulator 1 and screw 16 are perpendicular to each other. In this way, the screw 16 is secured against rotation within the slots 7, 8 of the base part 3 are held. Slots 7, 8 and screw 16 can have dimensions such that the screw head 10 and / or the upper part of the screw shaft 9 in the transverse slot 8 or Slot 7 clamps, which also applies to the embodiments in FIGS. 5 to 9 applies so that the insulator can no longer simply be pulled off the screw 16 is. The screws 16 used can be standard screws according to DIN 571 be with hexagon head; or screws can be used, whose head has only two lateral surfaces that are plane-parallel to each other.

FIGS. 5 to 8 show a further embodiment of an insulator 11 shown, consisting of a cylindrical base part 14, which is similar the base part 3 is designed in Figure 1. There is an approximately bell-shaped one on it Shaped head part 13, on which a ring 12 with a through hole is perpendicular 15 is arranged. Below the head part 13 in the transition to Base parts 14 again have a circumferential groove 20. The ring 12 has a slot 21 for receiving either an electrical Tensioning wire or ribbon. In the top view in Figure 7 is the slot 21 is guided obliquely so that the two ring parts in tips 17, 17 ' run. There is one at each of these tips 17, 17 'of each ring part thin, flexible flag 29, 30 arranged, which together the slot 21 in Lock openable and closable way. These flags 29, 30 serve to the fact that after the introduction of tapes into the through hole 15 through the slot 21 the tapes, which tend to flutter in the wind, not blown out of the through hole 15 and the slot 21 become.

Inside the base part 13 is the top view in the direction the direction of insertion of the screw 16 T-shaped recess introduced, consisting of the longitudinal slot 7, which both for Mantle wall of the base part 13 and the top surface 31 of the same is open to the outside. Transversely to this longitudinal slot 7 extends at the end the short transverse slot 8 for receiving the screw head 10 of the Screw 16, the transverse slot 8 outwards from the jacket wall of the base part 13 is open, as is also the case in FIGS. 1 and 4 equivalent.

In both embodiments, the screw 16 is perpendicular to it Longitudinal axis inserted into the T-shaped recess slots 7, 8 or pressed in, after which the insulator 1, 11 sits securely on the screw 16. The clear widths of the slots 7, 8 are selected so that the screw 16th just fitting or preferably clamped on the insulator 1, 11.

FIGS. 9, a, b and c also show three different views an adapter 22 that is used in common with the isolator and can be coupled with it.

Due to the T-shaped recess of two perpendicular to each other standing slots 7, 8, 14, 15 of the holding part 2, 3, 12, 13 of the insulator can to the insulator an adapter 22 by means of a T-shaped in a plan view Extension are coupled. The extension consists of a narrow one Web 25, the middle at least partially over one of the side surfaces of the Adapter 22 extends, preferably over the entire height of the side surface, as shown in FIG. 9 b), a transverse surface 24 at the end on the web 25 is arranged, which runs over the entire height of the web, so that in the Top view of web 25 and transverse surface 24 form a "T" which can be inserted into the T-shaped recess of the insulator. Directly The adapter 22 has a "T" -shaped extension concave rounded or convex concave or convex curved contact surface 26, such a contact surface 26 also laterally in one of the Side surfaces can be arranged at an angle of 90 degrees or is inclined approximately 90 degrees to the extension. Through the body 23 of the Adapters 22 are two through bores 27, 28 for performing of two cable ties with which the adapter 22 and thus also the insulator can be attached to a pole or pipe.

The use of the adapter 22 together with the isolator is possible because the top view of the extension is like the head and shaft of a hexagon bolt looks and when inserted into the T-shaped recess of the holding part of the insulator also acts in the same way, so that the recess in the slots 7, 8 is a receiving bed for the extension 24, 25 of the adapter forms.

In this way, the isolators according to the invention can not only metallic hexagon wood screws are attached to wooden posts, but by means of the intermediate adapter 22, it is possible to Adapters and thus the insulators using the cable ties on metal pipes, To fix iron posts or angle irons without doing so on the iron welded or holes have to be drilled in the iron. The back Surface of the adapter 22, which, as viewed in cross section, cambered or has a circular contact surface 26, the fastening object facing, the contact surface 26 on both round and fits square or flat surfaces well. Then two cable ties through the through holes 27, 28 in the body 23 of the adapter 22 guided and tightened to the mounting object.

An isolator 40 of FIGS. 10 to 13 essentially consists of the two integrally connected parts 32 and 33, the part 32 corresponds to the head part 2 and part 33 to the base part 3 in FIG. 1. The Part 32 consists of the two halves 34, 35, which means at one end a web 36 are connected to each other and the one between them flat recording space 37 for a band and a round recording space 38 enclose for a rope. At the opposite end they own two halves 34, 35 a clip closure 39. The two halves 34, 35 can thus be opened and a ribbon or rope inserted between them and be clamped. The tape or the rope do not need electrical ones To lead tension.

The part 33, which is formed on the half 35 of the part 32, has Slots 7, 8, which are identical to the slots 7, 8 in the base part 3 of the figure 1 are designed. The part 33 is only not cylindrical here but cuboid design. In Figure 14 is another example of an isolator shown, the base part is designed as a cylinder 41, of which Cylinder surface 42 from the slots 7, 8 for receiving the screw 16th are guided, the slot 7 for receiving the screw shaft 9 towards the outside both to the cylinder surface 42 and to the top surface 43 of the cylinder 41 open and the slot 8 for receiving the screw head 10 is only open to the outside of the cylinder surface 42.

Industrial applicability:

The insulators according to the invention are particularly for fencing and enclosure of animal paddocks with an electrical voltage Suitable for wires or with ribbons or ropes. The special advantage of Isolators is that defective isolators are no longer complete need to be replaced, but the screw remains on the post can, as long as it is still in order; it just becomes the old isolator pulled off and a new one put on the screw, which is an easy one and quick assembly of the isolator. Using the adapter the insulator also fixed iron posts without drilling or welding become.

List of reference numerals:

1, 11, 40

insulator

2

headboard

3, 14

base parts

4

insulator rings

5

groove

6

widening

7, 8

slots

9

screw shaft

10

screw head

12

ring

13

insulator bell

15

Through Hole

16

screw

17, 17 '

sharpen

18, 31

cover surfaces

19

Cylinder surface

20

circumferential groove

21

slot

22

adapter

23

cuboid body

24

transverse surface

25

web

26

concave or domed curved contact surface

27, 28

Through holes

29, 30

flags

32, 33

Parts corresponding to the head part and base part

34, 35

halves

36

web

37, 38

housing spaces

39

clip closure

41

cylinder

42

Cylinder surface

43

cover surface

Claims (11)

1. An insulator (1, 11, 40) for wires or ribbons or cables carrying electric voltage for fitting and/or building fences, especially field fences, consisting of an electrically insulating holding part (3, 14, 33) that has a screw (16) for screwing the insulator (1, 11, 40) into or onto a post or for attaching it to said post, especially a wooden post, whereby the holding part (3, 14, 33) is configured for holding the wire or ribbon or cable, characterized in that
   the holding part (3, 14, 33) has a recess that is T-shaped as seen from above and that consists of two slits (7, 8) arranged perpendicular to each other, and the screw (16) is one with a shaft (9) and a broadened head (10) having at least two side surfaces or flat surfaces that are parallel to each other, especially a wood screw, that allows a fitting, preferably clamping and locking, detachable insertion of the shaft (9) with the head (10) perpendicular to the longitudinal axis of the screw (16) into the recess, which forms a receiving bed for the head (10) and for the end part of the shaft (9) of the screw (16), whereby the recess of the slits (7, 8) is T-shaped as seen from above in the insertion direction of the screw (16), and one of the slits (7) of the recess has at the maximum the clearance of the diameter of the screw shaft (9) and is open towards the outside from two sides of the holding part (3, 14, 33) and the other slit (8) has at the maximum the clearance of the height of the screw head (10) and is open towards the outside from only one side of the holding part (3, 14, 33).
2. The insulator according to Claim 1, characterized in that
   the holding part is an injection-molded plastic part that consists of a head part (2, 12, 32) for holding the wire or ribbon or cable and of a shaped-on base part (3, 14, 33) in which the T-shaped recess of the slits (7, 8, 14, 15) is formed.
3. The insulator according to Claim 2, characterized in that
   the base part is configured as a cylinder (3, 14) or as a cube (33) from whose lower cover surface (18, 31) the slits (7, 8) extend that serve to receive the screw (16), whereby the slit (7) for receiving the screw shaft (9) is open towards the outside with respect to the cover surface (18) as well as with respect to the outer surface (19) of the cylinder (3, 14) or else with respect to one of the side surfaces of the cube (33), and the slit (8) receiving the screw head (10) is open towards the outside only with respect to the cover surface (18, 31).
4. The insulator according to Claim 2, characterized in that
   the base part is configured as a cylinder (41) from whose cylinder outer surface (42) the slits (7, 8) extend for receiving the screw (16), whereby the slit (7) for receiving the screw shaft (9) is open towards the outside with respect to the cylinder outer surface (42) as well as with respect to the cover surface (43) of the cylinder (41), and the slit (8) for receiving the screw head (10) is open towards the outside only with respect to the cylinder outer surface (42).
5. The insulator according to Claim 1, characterized in that
   the holding part (3, 14, 33) is made of an elastic material in which, as a recess for the screw (16), in the insertion direction thereof, there is a cylindrical pocket hole that widens at the inner end inside the holding part (3, 14, 33) for receiving the screw head (10) in a fitting manner and for the clamping but detachable placement of the insulator onto the screw head (10) of the screw (16) so that, in the top view of a section through a plane in which the longitudinal axis of the pocket hole lies, said pocket hole is T-shaped together with the widening at the end.
6. The insulator according to Claim 5, characterized in that
   the holding part consists of a head part, especially a ring (12) with a slit (21), for holding the wire, and of a shaped-on cylindrical or cuboidal base part (3) in which the pocket hole, together with the widening at the end, is created in the direction of the longitudinal axis of the cylinder (3) or of the cube.
7. The insulator according to Claims 1 and 3, characterized in that
   the holding part consists of two parts (32, 33) integrally connected to each other, whereby the first part (32) is made up of two halves that can be opened and closed, and between which a ribbon or a cable is held, and whereby the second part (33) is designed as a cuboidal base part.
8. The insulator (1, 11, 40) for wires or ribbons or cables carrying electric voltage for fitting and/or building fences, especially field fences, consisting of an electrically insulating holding part (3, 14, 33) that has a holder (22) for attaching the insulator (1, 11, 40) to a post, whereby the holding part (3, 14, 33) is configured for holding the wire or ribbon or cable, characterized in that
   the holding part (3, 14, 33) has a recess that is T-shaped as seen from above and that consists of two slits (7, 8) arranged perpendicular to each other and one of the slits (7) is open towards the outside from two sides of the holding part (3, 14, 33), the other slit is open towards the outside from only one side of the holding part (3, 14, 33), whereby the holder is an adapter (22) that has at one end a projection (24, 25) that is T-shaped as seen from above and that consists of a web (25) and of a crosswise surface (24) attached thereto, by means of which the adapter (22) can be fittingly inserted into the T-shaped recess of the two slits (7, 8) of the holding part (3, 14, 33) that are arranged perpendicular to each other, said slits forming a receiving bed for the T-shaped projection (24, 25), whereby the adapter (22) is cylindrical or cuboidal in shape and, directly opposite from the projection (24, 25), it has a rounded or cambered groove (26) at its end, and in that at least one bore (27, 28) passes through the adapter (22) so that a cable tie can be inserted for attaching the adapter (22) to a post or pipe.
9. The insulator according to Claim 8, characterized in that
   the adapter (22) is cuboidal and the projection consists of a narrow web (25) that runs across the middle at least partially over one of the side surfaces of the adapter (22), preferably over the entire height of the side surface, whereby at the end of the web, there is a crosswise surface (24) so that, in a top view of the web (25) and of the crosswise surface (24), these form a T.
10. The insulator according to Claim 8 or 9, characterized in that
    one of the side surfaces that are oriented at an angle of 90 degrees relative to the T of the projection also has a concavely rounded or cambered receiving or contact surface (26).
11. The use of an adapter (22) together with an electrically insulating holding part (2, 3, 12, 13) that serves to hold a wire or ribbon or cable carrying electric voltage and to which the adapter can be coupled, whereby the adapter is cuboidal or cylindrical in shape and, at one end as seen from above, has a T-shaped projection (24, 25) consisting of a narrow web (25) that runs across the middle at least partially over one of the side surfaces of the adapter (22), preferably over the entire height of the side surface, whereby at the end of the web, there is a crosswise surface (24) so that, in a top view of the web (25) and of the crosswise surface (24), these form a T, whereby the other end of the adapter can be attached to a post, and whereby the holding part (2, 3, 12, 13) has a recess that is T-shaped as seen from above and that consists of two slits (7, 8, 14, 15) arranged perpendicular to each other and one of the slits is open towards the outside from two sides of the holding part, the other slit is open towards the outside from only one side of the holding part, that allows a fitting and locking, detachable insertion of the projection (24, 25) of the adapter (22) into the recess that forms a receiving bed for the projection (24, 25).

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