DE19836225C2 - Chain net - Google Patents

Abstract

The chain network consists of continuous, originally unconnected, intersecting chain strands (2, 3) with vertical and horizontal round steel links (4, 5; 6, 7). U-shaped coupling members (9) with a web (11) and two legs (12) are provided at the crossing points (8). In the web (11) there is a rectangular recess (14) for receiving edge areas (25) of a horizontal round steel link (7) connecting two vertical round steel links (6) of a first chain strand (3), and a connecting one to the recess (14) in the center at the bottom Vertical slot (16) for receiving a vertical round steel link (4) of a second crossing chain strand (2). In the legs (12) vertical slots (19) extending from the upper end faces for receiving the vertical round steel links (6) of the first chain strand (3) are formed. These vertical slots (19) are permanently closed at their mouths by a fixing member (10) in the form of a bolt.

Description

The invention relates to a chain network of intersecting Chain strands with vertical and horizontal round bars structure.

So far, chain nets have become relatively short Chain strands with vertical and horizontal round bars structure, the ends of the chain strands in Junctions converge, which are formed by ring links be formed. The connection of the chain strands with the Ring links are made by welding the ring links.

It is obvious that this way only chains nets with a limited areal extension can be put. The reason is the difficult handling difficulties in silence, which increases with increasing Increase the nominal size of the round steel links. As a result So far, chain nets have only been used to protect Vehicle tires, especially heavy work machines  NEN, or become known in the form of snow chains. In in this connection GB-PS 393,533 discloses a Anti-skid chain for automobiles, in which the end link of several chain strands in the hooks of a four-hook Limbs are hooked. The suspended position of the End links are then secured by a locking link, the rest in the free spaces between the free ends the hook and the opposite surfaces adj bearded hook engages. The position of the locking link in Relation to the four-hook link is given by a Bolt secured, which is the four-hook link and the closing link firmly after hooking in the end links pulls together.

Curtain-like chain nets have also already been manufactured. However, these consist of comparatively short and narrow mesh strips that can still be handled during welding together, whereby two adjacent net strips without Welding process connected by clamp means were. Such chain networks can only be in one Restricted scope to withstand stresses that cross across the chain nets act.

A curtain-like chain network also counts through the US-PS 4,869,061 to the prior art. This will be longer continuous vertical chain strands made of round steel through short horizontal chain strands made of round steel structured into a chain network. this happens in that initially open, bent end members of the horizontal chain strands in round steel links vertical chain strands hooked in and then through Bend back the free leg to be closed.

There is now a desire for ket in certain industries nets that ho even in a large area resist transverse loads over long periods of time  can hen. For example, to protect from Water-powered turbines that have nets even tree trunks or similar striking with great force catch large parts safely.

The invention is based on the prior art, the The task is to create a chain network, which in na any size and configuration with great power Across the chain from intersecting chain strands with vertical and horizontal round steel links can be put together.

According to the invention, this object is achieved in the Features of claim 1.

In principle, chains of any length can now be used strands are used and thus crossed with each other, that a chain network with the desired configuration arises. At the intersection of two chain strands coupling elements are provided, which are formed in this way are that on them round steel links of the chain strands be form-fitting, location-oriented. After the positive The intersecting chains become their positional orientation strands in their relative positions through on the coupling link determined fixation elements determined.

With the form-fitting orientation to the Kopp the round steel links on the coupling link in all spatial axes to a limited extent otherwise they cannot do any major relative movements Carry out to the coupling links. With that everyone is Define crossing point of the chain network as crossing node kidney.

A major advantage of the invention is that the coupling links allow the chain strands  to be connected in a long-strand construction. The Kopp here only serve to fix the position. They are not used for power transmission or as fixed points needed. The forces acting on a chain network become only from the intersecting tensioned chain strands added. This has another advantage, that even short-link chain strands (t <3d) into the Coupling links can be hung. Since the Kopp only the form-fitting orientation of the situation are not automatic welding machines for connecting the Chain strands more required. The related There is no effort. As a result, chains of any length can be used strands z. B. directly in the manufacturing facilities on the Gust the laid out and by means of the coupling links to chains networks are put together. Finally need then only the fixing members with the coupling member to be connected, whereby the relative position of the Chain strands to each other and to the coupling links is true.

The coupling links can cost as bulk items cheap manufactured from simple weldable steel because they don’t take up the strain on the chain nets take part. This allows the chain strands themselves to be made high-strength, alloyed stainless steels. As a result, there is a high resistance to in the transverse direction guarantee loads acting on a chain network accomplishes.

The coupling elements also allow that changing configurations within a chain network ions (rectangular, triangular, etc.) are adjustable. Depending on the length of the chains strands can also be rectangular, triangular in outline or approximately round network configurations become. Furthermore, mesh baskets can now be produced.  

A particularly advantageous embodiment of the invention is seen in the features of claim 2. After that the coupling members have a U-shaped cross section with a web and two legs each. In the jetty each coupling member is one from the top end outgoing rectangular recess provided. In the middle of the A vertical slot closes at the bottom of the recess that ends just before the lower end of the web. The width of the vertical slot is only insignificant larger than the diameter of a round steel link In those that extend at right angles to the web Thighs are also from their upper end faces vertical slots incorporated, the width of which is only slightly larger than the diameter of a round bar is dimensioned. These vertical slots end with a distance to that below the the bottom of the Ausspa tion intersecting horizontal plane, such as the wire corresponds to the diameter of a round steel link.

The rectangular recess serves to accommodate Randbe range of a horizontal round steel link, which the in the vertical slots of the legs hooked vertical Link round steel links of a chain strand together det. This horizontal round steel link is therefore inside half of the coupling link. The adhere to the recess Closing vertical slot in the web serves for the admission of a ver connecting two horizontal round steel links tical round steel link of a crossing second chain strangs. The crossing chain strands are therefore each because on the web and on the legs in the longitudinal direction direction oriented than the curved faces of the horizontal round steel links in front of the outside and inside surfaces of the legs and the web and thereby a relative longitudinal displacement of the chain strands to Coupling link over the for hanging the chain strands prevent necessary movement play.  

So that the Ket suspended in the coupling members can not solve the strands, the mouths of the vertical slots worked into the legs a fixing member in the form of a round steel bolt locked sen. The fixation element is attached to the front of the legs welded. The welding is done by hand. The Material of both the coupling member and the fixer members only need a simple, easily weldable structure to be steel.

With the help of the U-shaped slotted coupling links can therefore create any network configuration be, since it is only by a corresponding dimension solution of the game on the coupling links regarding their position to orientate round steel links possible is the desired relative angular position of the crossing, but otherwise straight through To ensure chain strands.

The fact that according to claim 3, the bottoms of the Ausspa horizontal planes intersecting in the middle ren height ranges of the coupling links can run even with chain strands lying one above the other in small, compact coupling links who need little material to make them other.

According to claim 4, the inner ends of the vertical slots are concave in both the web and the legs rounded. This way you get the vertical round steel links a perfect storage.

According to the features of claim 5, the depth of the vertical slots larger than the width of the vertical Dimensioned round steel links. This configuration enables it to closely chess the intersecting chain strands  without inadmissible tilting nen. The position of the vertical round steel link in the vertical slot of the bridge through the horizontal round steel member determines which in the vertical slots of the Vertical round steel links inserted det. Their position is determined by the mouth of the Verti Kalschlitze fixed in the legs fixier be Right.

According to claim 6, the thickness of the webs and the legs the coupling links are smaller than the distance of the convex curved faces of the adjacent horizon dimensioned round steel links of each chain strand. Also this measure helps to keep the chain strands are perfectly oriented on the coupling links. The chain strands can be in the area of the crossing points do not make unacceptably large changes in length.

The features of claim 7, according to which the light Width between the legs of the coupling links larger dimensioned as the length of a horizontal round steel link is also contributes to the compact design of the Coupling links and for perfect orientation of the chain strands at.

Ensure the features of claims 8 and 9 advantageous properties with regard to a compact Design of the coupling links.

It is possible to cast the coupling members put. Cast steel is particularly advantageous Application. According to the features of claim 10 are the coupling elements in a preferred further development by punching a blank or by forging subsequent U-shaped bending operation. After that each coupling element with all recesses is initially  forged as a stretched tab or from a sheet stamped circuit board. Following this manufacturing then this semi-finished product only needs U- to be bent to form the bridge and the legs arise. Other mechanical processing measures are not mandatory. This type comes to mass production especially counter.

The invention is based on a in the drawing Solutions illustrated embodiment explained in more detail tert. Show it:

FIG. 1 shows in plan view a section of a chain network;

Fig. 2 is a perspective view of a coupling member of the chain network of Fig. 1;

Fig. 3 is a front view of the coupling member according to arrow III of Fig. 2;

Fig. 4 is a side view of the coupling member according to arrow IV of Fig. 3;

Fig. 5 is a plan view of the coupling member according to arrow V in Fig. 3;

Fig. 6 on an enlarged scale the section VI of Fig. 1;

Fig. 7 is a view of FIG. 6 according to the arrow VII and

6 VIII Fig. 8 is a view of FIG. According to the arrow.

1 denotes a chain network in FIG. 1, which consists of intersecting chain strands 2 , 3 with vertical and horizontal round steel links 4 , 5 and 6 , 7 as well as coupling links 9 arranged at the intersection points 8 of two intersecting chain strands 2 , 3 is composed with fixing members 10 .

All chain strands 2 , 3 are formed out as long strands. The material is alloyed, high-strength stainless steel. These are so-called short-link chain strands 2 , 3 , in which the division ratio is equal to or smaller than three times the diameter D ( FIG. 7) of a round steel link 4-7 .

In the embodiment of FIG. 1, the intersecting chain strands 2 , 3 run at right angles to each other.

A coupling link 9 for the chain network 1 of FIG. 1 is shown in more detail in FIGS. 2 to 8.

Mutandis., Each coupling member 9 has 5 shows a U-shaped cross section wherein all the edges are rounded. On the basis of the U-shaped cross section, a web 11 and two legs 12 arranged at right angles thereto are formed. The height H of the coupling member 9 to the width B is approximately 1: 1 and the width B to the length L of the legs 12 is approximately 2: 1 ( FIGS. 2 to 5).

In the web 11 a rectangular recess 14 starting from the upper end 13 is provided. The bottom 15 of the recess 14 runs approximately in the middle height range of the coupling member 9 . The width B1 of the cutout 14 corresponds approximately to the clear width W between the two legs 12 .

In the middle of the recess 14 , a vertical slot 16 connects to the bottom, which ends just before the lower end face 17 of the web 11 . The inner end 18 of the tikal slot 16 is rounded concavely. The depth T of the vertical slot 16 corresponds approximately to the width B2 of a round steel link 4-7 . See also FIGS. 7 and 8.

The width B3 of the vertical slot 16 is only slightly larger than the diameter D of a round steel member 4-7 .

In the legs 12 of the coupling member 9 mutually aligned vertical slots 19 are incorporated, which start from the upper end faces 20 and end below the Bo 15 of the recess 14 intersecting horizontal plane HE. The inner ends 21 of these vertical slots 19 are rounded concavely. Their width B3 is only slightly larger than the diameter D of a round steel link 4-7 . The depth T of the vertical slots 19 is kept somewhat larger than the width B2 of a round steel link 4-7 ( FIGS. 2 to 5).

The clear width W between the legs 12 is slightly larger than the length L1 of a round steel member 4-7 measured ( Fig. 5 and 8).

The thickness D1 of the web 11 and the leg 12 is smaller than the distance A of the convexly curved end faces 22 from adjacent horizontal round steel members 5 , 7 ( FIGS. 5 and 6).

As can be seen in particular from FIGS. 6 to 8, when installing the chain network 1 of FIG. 1, a vertical round steel link 4 of the chain strand 2 is first inserted into the vertical slot 16 of the web 11 at each crossing point 8 , so that the convex end faces 22 of the adjacent horizontal round steel members 5 lie in front of the inner surface 23 and the outer surface 24 of the web 11 . Subsequently, the chain strand 2 intersecting chain strand 3 is so oriented position on the coupling member 9, that a horizontal round steel member 7 is rich to lie between the legs 12 in the loading, whereby the edge portions 25 of the horizontal round steel member 7 protrude into the recess fourteenth The adjoining the horizontal round steel member 7 and connected to it vertica len round steel members 6 slide into the vertical slots 19 of the legs 12 , so that the convexly curved end faces 22 of the horizontal round steel members 7 in front of the inner surfaces 26 and the outer surfaces 27 of the legs 12 lie.

In this way, the crossing points 8 can be assembled simultaneously or sequentially, or several crossing points. 8

Subsequently, a fixing member 10 in the form of a round steel bolt is placed on the chamfered mouths 28 of the vertical slots 19 in the legs 12 . The diameter D2 of the fixing member 10 is slightly larger than the width B3 of the vertical slots 19 . The length L2 of the fixing member 10 is the same or shorter than the width B of the coupling member 9 . Since both the coupling member 9 and the fixing member 10 consist of a simple, but easily weldable structural steel, the fixing member 10 can be concealed with the legs 12 mouth side of the vertical slots 19 . The weld seams are designated 29 . In this way, not only the vertical round steel links 6 of the chain ten strand 3 a perfect position fixation in the United tical slots 19 of the legs 12 of the coupling link 9 , but also the vertical round steel link 4 of the chain strand 2 in the vertical slot 16 of the web 11 , and thereby that the position of this vertical round steel link 4 is limited upwards by the horizontal round steel link 7 of the chain strand 3 lying in the coupling link 9 .

Each coupling member 9 is manufactured in two stages. The first stage is the forging to size of a tab provided with the recess 14 and the vertical slots 16 , 19 . The second manufacturing stage is a bending operation in which the web 11 and the legs 12 are configured at right angles to one another.

List of reference symbols

1

- chain network

2nd

- chain strand v.

1

3rd

- chain strand v.

1

4th

- vertical round steel links v.

2nd

5

- horizontal round steel links v.

2nd

6

- vertical round steel links v.

3rd

7

- horizontal round steel links v.

3rd

8th

- crossing points of

1

9

- coupling links

10th

- Fixing links

11

- Steg v.

9

12th

- thigh v.

9

13

- upper end of v.

11

14

- recess in

11

15

- Boden v.

14

16

- vertical slot in

11

17th

- lower front v.

11

18th

- inner end of

16

19th

- vertical slots in

12th

20th

- upper end faces v.

12th

21

- inner ends of

19th

22

- end faces from

5

,

7

23

- inner surface v.

11

24th

- outer surface of

11

25th

- marginal areas of

7

26

- inner surfaces v.

12th

27

- outer surfaces of

12th

28

- mouths of

19th

29

- welds
A - distance from

22

B - width from

9

B1 - width from

14

B2 - width from

4-7

B3 - width from

16

u.

19th

D - diameter of

4-7

D1 - thickness of

11

u.

12th

D2 - diameter of

10th

H - height from

9

HE - horizontal plane through

15

L - length from

12th

L1 - length from

4-7

L2 - length from

10th

T - depth of

16

,

19th

W - clear width between

12th

Claims (10)

1. Chain network of continuous, originally unconnected, intersecting chain strands ( 2 , 3 ) with vertical and horizontal round steel links ( 4 , 5 ; 6 , 7 ), in which coupling links ( 2 , 3 ) at the intersection points ( 8 ) of the chain strands ( 9 ) are provided, on which the round steel links ( 4 , 5 ; 6 , 7 ) lying in the chain strands ( 2 , 3 ) at the crossing points ( 8 ) are position-oriented and are determined in their relative position by fixing links ( 10 ). 2. Chain network according to claim 1, in which the coupling elements ( 9 ) have a U-shaped cross-section, each with a web ( 11 ) and two legs ( 12 ), wherein in the web ( 11 ) one from the upper end face ( 13) outgoing rectangular recess (14) steel member (6) connecting the horizontal round for receiving edge portions (25) of two vertical round steel members (7) of a first chain strand (3) and a centrally on the bottom side adjoining the recess (14) vertical slot (16 ) for receiving a vertical round steel link ( 4 ) of a second crossing chain strand ( 2 ) are provided, while in the legs ( 12 ) from the upper end faces ( 20 ) outgoing vertical slots ( 19 ) for receiving the vertical round steel links ( 6 ) of the first chain strand ( 3 ) are formed, which end below the bottom ( 15 ) of the recess ( 14 ) intersecting horizontal valley plane (HE) and at their mouths ( 28 ) in the end faces ( 20 ) are permanently closed by the fixing member ( 10 ) in the form of a bolt. 3. Chain network according to claim 2, wherein the floors ( 15 ) of the recesses ( 14 ) intersecting horizontal planes (HE) in the middle height regions of the coupling elements ( 9 ) extend. 4. Chain network according to claim 2 or 3, wherein the inner ends ( 18 , 21 ) of the vertical slots ( 16 , 19 ) are concavely rounded. 5. Chain network according to one of claims 2 to 4, in which chem the depth (T) of the vertical slots ( 16 , 19 ) greater than the width (B2) of the vertical round steel links ( 4 , 6 ) is dimensioned. 6. Chain network according to one of claims 2 to 5, in which chem the thickness (D1) of the webs ( 11 ) and the legs ( 12 ) of the coupling members ( 9 ) smaller than the distance (A) of the convexly curved end faces ( 22 ) one of the adjacent horizontal round steel links ( 5 , 7 ) of each chain strand ( 2 , 3 ) is dimensioned. 7. chain network according to one of claims 2 to 6, in which chem the clear width (W) between the legs ( 12 ) is greater than the length (L1) of a horizontal round steel member ( 5 , 7 ). 8. chain network according to one of claims 2 to 7, in which chem the height (H) to the width (B) of a coupling link ( 9 ) is dimensioned 1: 1. 9. chain network according to one of claims 2 to 8, in which chem the width (B) of a coupling member ( 9 ) to the length (L) of the legs ( 12 ) is dimensioned 2: 1. 10. Chain network according to one of claims 1 to 9, in which chem the coupling links ( 9 ) are formed by stamping a blank or by forging with a subsequent U-shaped bending operation.