DE202013006362U1 - clamp rod - Google Patents

Abstract

A staple stick, consisting essentially of a plurality of fastened, wire-formed staples, in particular for attaching components of different materials to elements of wood / wood-based materials or the like, each staple having a spine portion and two legs at their free ends each have a penetration region with an at least partially tapered tip, characterized in that at least the penetration region (14) is at least partially provided with profilings (16, 45, 52) which reduce the pull-out resistance of the clamp (11, 20, 39, 41, 50).

Description

The invention relates to a staple bar consisting essentially of a plurality of fastened, wire-formed staples, in particular for fixing components made of different materials to elements made of wood / wood-based materials or the like, each staple having a back area and two legs, each having at its free ends a penetration area with an at least partially tapered tip.

Such a staple bar from the prior art for fixing insulation boards to wooden stands is for example from the DE 20 2012 009 301 U1 known. However, with regard to new legal provisions in which higher pull-out resistance is required for brackets and also with regard to the diverse and different possible applications of the brace bar, this prior art is considered to be in need of improvement.

The object of the invention is therefore to provide a new clip rod, consisting essentially of a plurality of fastened together, made of wire-shaped brackets, which guarantees higher pull-out resistances and moreover also has a wider range of applications.

The solution of the problem arises from the features of claim 1, in particular the features of the characterizing part, according to which at least the penetration region is at least partially provided with profilings which increase the pull-out resistance of the clamp.

The staple bar according to the invention or the individual, formed from wire brackets have the considerable advantage that they have an increased pull-out resistance due to the at least partial profiling of the legs in the penetration, which corresponds to the ultimate standards, without significantly increasing the cost, at the same time the field of application of such clamp bars is significantly more diverse.

In an advantageous embodiment, the width of the profiling of the penetration area is many times greater than the wire diameter, which ensures that the pull-out resistance of the brackets compared to the prior art significantly improved.

In brackets, which are made of profiled wire as a whole, results in a further embodiment of the advantage that eliminates the separate operation of the profiling in a cost effective manner in the preparation of the brackets and the staple bars.

In the case of staples made of profiled wire, according to a further embodiment, they can be formed from a wire of square cross-section with rounded corner regions, wherein the wire is twisted in the direction of its longitudinal axis. Staples made from such a profiled wire have the advantage that the staple legs have greater stability and greater directional stability during the driving operation.

In contrast, brackets, which are formed from a square in cross-section wire with rounded corners, wherein the wire cross-section on all sides in the direction of the longitudinal axis extending profilings, has the advantage that the lateral surface is larger and thereby increases the pull-out resistance.

The highest pull-out resistance can be found in an embodiment in which the profilings are arranged on the clip legs transversely to the leg axis. This is important in connection with the required pull - out resistance values, which are described in the DIN 1052, part 2 or Eurocode 5.

In the case of profiles which are arranged at an angle to the wire axis on the clip legs, a further embodiment can indeed detect an increased pull-out resistance, but these clips can be driven in with relatively low energy and thus have a relatively low driving resistance.

In a further preferred embodiment of the invention, a circular-cylindrical guide shaft is arranged between the profilings of the penetration region and the tip, whose diameter corresponds to the diameter of the wire. With such a trained clamp experiments have shown that it has a high directional stability during driving due to the circular cylindrical guide shaft.

Another situation arises in an embodiment in which the circular cylindrical guide shaft has a reduced diameter compared with the wire diameter. This results from the tapered guide shaft a "pre-perforation", which is smaller in diameter than the diameter of the profiled part, which significantly reduces the resistance during driving. This is very important especially for long brackets.

In particular, in conjunction with a profiling on the staple legs transversely to the leg axis created by the tapered guide shaft the effect that the wood fibers are not destroyed when driving, but dodge in the driving direction and then invest again in the profilings. As a result, the pull-out resistance compared to the known brackets is increased by a multiple.

According to another embodiment, a staple bar is formed from staples in which the penetrating portions of the leg ends are provided with a tip tapered to the center of a leg axis. Such an embodiment advantageously has a high directional stability.

Specifically, such an embodiment may be provided with different configurations. In an embodiment as a chisel tip, the advantage is the simple and cost-effective production, while a nail tip ensures particularly good directional stability. Instead, the advantage of a penetration area provided with a ballistic point is that when mounting metal elements on wood, this point forms a funnel-shaped hole in the metal, which reduces the resistance to driving, especially with metal, than with other tip shapes.

Another advantage is a penetration area with a cone point. Such a conical tip has the advantage that it can be incorporated in the manufacture of the brackets in one operation with the formation of the transversely or obliquely formed to the wire axis profiling on the staple legs.

Finally, a frustoconical or a truncated pyramid tip has the advantage that the risk of splitting z. B. is significantly reduced even with small distances of the brackets to the edge of the fastened element when mounting boards.

In a further advantageous embodiment of the invention, a wire with a circular cross-section is used in the manufacture of the brackets, in which case a commercially available round wire can then be used in a cost-effective manner.

In a further embodiment of the invention, the clips outside the penetration area in the leg region are spaced apart from each other by means of elongated connecting means assembled into staple bars. These inventively spaced connections of the individual brackets basically result in an advantageous manner to a compensation of the width of the clip back and leg ends, provided that the leg ends are profiled and uniform, rectangular clamp bars to be formed.

This can be done, for example, according to one embodiment by connecting means of at least one each point-shaped welded to the brackets connecting wire. An advantage of such a spaced apart connection is that the welded joint is the most stable connection, with the advantage that due to the fact that the clamps are connected together at certain, narrow points, only a small amount of energy is required for separation. The creation of the staple bars is also possible in a simple way by resistance welding, with a high production speed is achieved with low energy consumption.

Another type of spaced connection is that the connecting means od at least one glued strip of paper. Like. Are formed. Again, the production is relatively easy, with the separation also only a small amount of energy is necessary.

Another possibility, in order to bring about a compensation of the different cross-sections or widths of the clamps in the area of the clamp back or the penetration area in the case of clamps with profiled penetrating area, is that the clamps are provided with opposite flat areas in the area of the back and the adjacent leg area, whose width corresponds to the width of the profiled penetration area. In addition to the advantage of the aforementioned compensation of the cross-section or the clip width, this version also has the advantage that the bearing surface of the staple back is increased by the flattening, whereby the transmission resistance increases. In addition, acting as a driving tool ram plate, which acts on the brackets, more bearing surface, so that slipping of the plunger plate is prevented.

In a further embodiment of the invention, one clip leg is longer than the other clip leg in connection with profiled or partially profiled clip legs. In this case, the longer staple leg rushes during the driving operation, the driving energy initially acting only completely on this longer staple leg. This has advantages with respect to the driving operation, in particular with regard to the directional stability, in particular in connection with profilings on the clip legs, which are arranged transversely to the leg axis.

The aforementioned embodiment may be varied in that the clamps are alternately assembled by a longitudinal axis L rotated by 180 ° to form a staple bar. In this case, the driving tool (piston and ram plate) is claimed more uniformly in an advantageous manner.

In a final embodiment of the invention, a staggered staple bar is formed by the staggered arrangement of the staples. Due to the step-shaped arrangement of the brackets in a staple bar, the stapler has an obliquely arranged staple holder (magazine), which can be clamped in corners, which is not possible in the usual devices on which the magazine is "perpendicular" to the driving tool.

Further advantages of the invention will become apparent from the following description of several embodiments and the also following figures.

Show it:

1 : a frontal view of a staple bar,

2 : An illustration of a staple of a staple bar according to 1 .

3 : Illustration of a staple stick in perspective according to 1 .

4 : partial enlargement of the penetration area of a staple bar according to 3 .

5 an exemplary attachment situation of a single bracket;

6 - 15 : Representations of brackets with differently formed penetration area,

16 . 17 : Representation of a single clip and a staple bar with a stepwise arrangement,

18 : Illustration of a clip with different lengths of thighs,

19 - 22 Fig. 1 shows an embodiment of a brace bar / clip of twisted wire and Figs

23 - 26 : Representations of a further embodiment with respect to a staple rod / a staple with a square in cross-section wire.

In the drawings, a staple bar is shown in its entirety by the reference numeral 10 designated.

The staple bar 10 is made up of a variety of parentheses 11 formed, which a clip back 12 and two clip legs each 13 exhibit. The staple legs 13 each have a penetration area at their free ends 14 on, each with a so-called nail tip 15 is provided. The penetration area 14 is in the present embodiment (s. 1 to 4 ) completely with itself across the longitudinal extent of the staple bar 10 extending profiles 16 Mistake.

For the purpose of forming staple bars 10 will be a variety of parentheses 11 by means of several connecting means 17 in the form of strips of paper od. Like. And connected with the aid of adhesive.

Such staples 10 For example, in not shown staplers, which are compressed air, with gas or electrically driven, inserted and then serve for the attachment of components made of different materials to elements of wood / wood-based materials od. Like.

Is exemplary in the 5 a board / board connection of a wooden pallet shown, using the clip 20 a board 19 at the undergrowth 18 is attached, but the clip 20 the undergrowth 18 does not break through. In the present case, the clip legs 21 Profiles arranged transversely to the leg axis 22 in the penetration area 23 on, with the free end of the staple legs 21 each with a nail tip 23 is provided.

It can be seen in the drawing that by driving in the clip 20 not just the full penetration area 23 in the undergrowth 18 but also the clip back 25 in the contour of the board to be fastened 19 completely immersed.

Advantageously, hereby is thus with a clip 20 a connection between the board 19 and the undergrowth 18 while making the connection by nails, at least two nails each by two separate setting operations by the board 19 in the undergrowth 18 would have to be driven.

Next show the 6 to 15 different brackets training 25a to 25j ,

It should first be emphasized that in the 6 . 7 . 8th . 9 such as 14 and 15 clinch 25a to 25d and 25i . 25j with a transversely mounted to the leg axis profiling 16 In addition, for the purpose of equalizing the width b of the profiling area or the clip back or the upper leg areas with flats 26 are provided. However, the aforementioned embodiments differ in each case with regard to the design of their tip arranged at the free end. This is how the 6 a nail tip 27 , the 7 a ballistic tip 28 , the 8th a chisel tip 29 , the 9 a cone top 30 , the 14 a truncated pyramidal point 31 and the 15 a frustoconical tip 32 on.

In addition, the embodiments according to 10 to 13 , in each of which a penetration area 14 with diagonal profiles 33 is available. Even those with diagonal profiling 33 provided brackets 25e to 25h are in the 10 to 13 shown with different tips. This is how the 10 a nail tip 34 , the 11 a ballistic tip 35 , the 12 a chisel tip 36 and the 13 a cone top 37 on.

With respect to the embodiments according to 9 and 13 remains to be noted that these between the profiles 16 . 33 and the cone top 30 . 37 respectively. 15 and between profiling 16 and the frustoconical tip 32 a circular cylindrical, opposite the profilings 16 . 33 have tapered guide shaft F, which - as stated above - the "pre-perforation" is used.

In the 16 and 17 is another variant of a staple bar 38 consisting of brackets 39 shown, which on the one hand stepped or stepped by means of welded connecting wires 40 attached to each other. These step-shaped stapling bars have advantages in use and, moreover, are reliable with connecting wires 40 connected to each other, which oppose the driving in only a small resistance when driving in a stapler.

In addition, in the 18 another embodiment of a staple bar with brackets 41 shown, the legs of different lengths 42 exhibit. In a manner not shown, such brackets 41 alternately rotated about a longitudinal axis L by 180 °, juxtaposed and joined together to form a staple bar, not shown. This embodiment has - as already explained above - advantages with respect to the driving operation, in particular with regard to the directional stability.

In the 19 to 22 is another embodiment of a staple bar 43 , consisting of individual brackets 44 shown, consisting of twisted, profiled wire sections 45 getting produced. Like from the 20 can be seen, in this case, the twisted wire section 45 a square cross section 46 with flattened corners 47 on. Also in this embodiment is by means of welded connecting wires 48 a large number of parentheses 44 to a staple bar 43 together.

Ultimately, the show 23 to 26 another embodiment of a staple bar 49 consisting of brackets 50 made of wire sections 51 (S. 23 ) were manufactured. According to 24 you can see that it is again a square cross-section 52 but with all-round impressions 53 is provided. Also in this case, the staple bars 48 with the help of welded connecting wires 54 educated.

LIST OF REFERENCE NUMBERS

10

clamp rod

11

clip

12

staple back

13

staple legs

14

penetration region

15

nail tip

16

profiling

17

Connecting means (strips)

18

undergrowth

19

board

20

clip

21

staple legs

22

profiling

23

penetration region

24

nail tip

25

a-j = bracket

26

flats

27

nail tip

28

ballistic tip

29

chisel tip

30

apex

31

truncated pyramidal tip

32

frustoconical tip

33

diagonal profiling

34

nail tip

35

ballistic tip

36

chisel tip

37

apex

38

clamp rod

39

clinch

40

connecting wires

41

clinch

42

clamp rod

43

clamp rod

44

clinch

45

twisted, profiled wire sections

46

square cross section

47

flattened corner areas

48

connecting wires

49

clamp rod

50

clinch

51

wire sections

52

square cross section

53

all-round indentations

54

connecting wires

b

width

L

longitudinal axis

F

circular cylindrical guide shaft

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202012009301 U1 [0002]

Cited non-patent literature

• DIN 1052, Part 2 [0010]

Claims (24)

A staple stick, consisting essentially of a plurality of fastened, wire-formed staples, in particular for attaching components of different materials to elements of wood / wood-based materials or the like, each staple having a spine portion and two legs at their free ends each have a penetration region with an at least partially tapering tip, characterized in that at least the penetration region ( 14 ) at least partially with profilings ( 16 . 45 . 52 ), which determines the pull-out resistance of the clip ( 11 . 20 . 39 . 41 . 50 ) enlarge. Staple bar according to claim 1, characterized in that the width of the profilings ( 16 ) of the penetration area ( 14 ) is many times larger than the wire diameter. Staple bar according to claim 1 or 2, characterized in that the clip ( 41 . 50 ) in total of profiled wire ( 45 . 51 ) is made. Staple bar according to one of the preceding claims, characterized in that the staple ( 45 ) of a cross-sectionally square wire ( 46 ) with rounded corners ( 47 ) is formed, which is twisted in the direction of its longitudinal axis. Staple bar according to one of the preceding claims, characterized in that the staple ( 51 ) of a cross-sectionally square wire ( 52 ) is formed with rounded corner regions, wherein the wire cross section on all sides in the direction of the longitudinal axis extending profilings ( 53 ) having. Staple bar according to one of the preceding claims, characterized in that the profilings ( 16 ) on the clip legs ( 13 ) are arranged transversely to the leg axis. Staple bar according to one of the preceding claims, characterized in that the profilings ( 33 ) on the clip legs ( 13 ) are arranged obliquely to the wire axis. Clip rod according to one of the preceding claims, characterized in that between the profilings of the penetration region and the tip a circular cylindrical guide shaft is arranged, whose diameter corresponds to the diameter of the wire. Clip rod according to claim 8, characterized in that the circular cylindrical guide shaft (F) has a reduced diameter relative to the wire diameter. Staple bar according to one of the preceding claims, characterized in that the penetration areas ( 14 . 23 ) of the leg ends with a tip tapering towards the midpoint of a leg axis ( 15 . 24 . 27 - 32 ) are provided. Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) of the leg ends with a chisel tip ( 29 ) are provided Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) of the leg ends with a nail tip ( 15 . 27 ) are provided. Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) with a ballistic tip ( 28 ) are provided. Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) with a cone point ( 30 ) are provided Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) of the leg ends with a frustoconical tip ( 32 ) are provided. Staple bar according to one of claims 1 to 10, characterized in that the penetration areas ( 14 . 23 ) of the leg ends with a truncated pyramidal tip ( 31 ) are provided. Staple bar according to one of the preceding claims, characterized in that the staples have a circular cross-section. Staple bar according to one of the preceding claims, characterized in that the staples ( 11 . 20 . 31 . 41 . 44 . 50 ) outside the penetration area ( 14 . 23 ) spaced apart in the leg region by means of elongate connecting means ( 17 . 40 ) to staple bars ( 10 ) are joined together. Clamping rod according to one of the preceding claims, characterized in that the connecting means ( 40 ) from at least one point in each case on the brackets ( 11 . 20 . 39 . 41 . 44 . 50 ) welded connecting wire are formed. Stapling rod according to one of claims 1 to 18, characterized in that the connecting means ( 17 ) od at least one glued strip of paper. Like. Be formed. Staple bar according to one of the preceding claims, characterized in that the staples ( 11 . 20 . 39 . 41 . 44 . 50 ) in the area of the back and the adjacent leg area with opposite flats ( 20 ) whose width (b) correspond to the width of the profiled penetrating portion. Staple bar according to one of the preceding claims, characterized in that one staple leg is longer than the other staple leg. Staple bar according to claim 23, characterized in that the brackets according to claim 23 alternately in each case about a longitudinal axis L rotated by 180 ° are joined together to form a staple bar. Staple bar according to one of the preceding claims, characterized in that a staggered staple bar is formed by the staggered arrangement of the staples.

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