EP2191739A2 - Buckel for connecting first and second volumes - Google Patents

Abstract

The buckle has a buckle body (1) with cross bars (2, 3) extending between a left side part (12) and a right side part (11) transverse to a longitudinal direction of straps to be connected. A movable middle bar (4) rests on resting bars (13b) of the side parts. Support bars (16a, 16b) extend from each of the resting bars. Each of the support bars includes a section lying in front of a respective end face of the middle bar, and a section with cutouts (19b) into which a respective end of the middle bar projects. The sections face towards the resting bar from which the support bar extends.

Description

The invention relates to a buckle for connecting first and second straps, the buckle body, with respect to the longitudinal direction of the ligaments to be joined left and right side parts and transversely to the longitudinal direction of the ligaments to be connected between the left and right side parts extending first and second transverse webs comprises, and extending transversely to the longitudinal direction of the bands to be joined extending, movable central web, which is slidably mounted in the longitudinal direction of the bands to be connected from the left and right side parts, wherein the central web rests on support webs of the side parts.

For connecting two bands, wherein the length of at least one band is adjustable, buckles with fixed transverse webs are known. Such buckles are also referred to as Dreistegschnallen or ladder buckles (especially if more than three transverse webs are present).

Furthermore, it is already known to arrange a central transverse web, which is referred to below as a central web, displaceable in the longitudinal direction of the bands to be connected to a buckle body. The retention force against extension of the adjustable length band is thereby increased. In a previously known such training of metal center web is on both sides on support webs of the also existing metal buckle body. At the support webs close lateral guide webs, which are bent to the side of the buckle body, on which the central web rests on the support webs, so that they point obliquely upwards. In the guide webs window recesses are formed, in which slightly angled end portions of the central web protrude. The bends of the central web are directed opposite to the bends of the guide webs. As a result, the central web is displaceably held in the window recesses in the longitudinal direction of the tapes to be connected but held against being pulled out of the window recesses in the guide webs. In order to ensure in this prior art buckle that falling out of the central web of the window recesses of the guide webs is avoided, the tolerances in the formation of the buckle must be relatively low. The bent End portions of the central web lead to an additional manufacturing effort.

The object of the invention is to provide a buckle of the type mentioned, in which a reliable storage of the central web is achieved and which can be produced efficiently. According to the invention, this is achieved by a buckle with the features of claim 1.

In a buckle according to the invention, in each case a bent storage web starts from the support webs for the middle web. This has a lying in front of the adjacent end face of the central web section, which serves as a stop for the central web against displacement of the central web in its axial direction, and further comprises a portion which extends in the direction of the support web from which the storage web proceeds, and a recess has, in which projects the respective end of the central web. This recess extends in the longitudinal direction of the bands to be joined and their ends serve as stops for the central web in order to limit the displaceability of the central web in the longitudinal direction of the bands to be connected.

It can thereby be achieved with a simple manufacturability, a reliable mounting of the central web on the buckle body.

Preferably, the recesses receiving the ends of the central web extend from the edge of the storage web extending in the direction of the longitudinal extent of the strips to be joined. This edge is directed to the support web from which the support web goes out and abuts the support web or has a distance from the support web, which is smaller than the perpendicular to the surface of the support web on which rests the central web, measured thickness of the central web, so that the central web not through the gap between the edge of the support web and the support web is feasible.

Advantageously, the buckle body of a buckle according to the invention can be formed by a curved plate provided with corresponding recesses.

The central web is preferably formed in the form of a flat plate.

In order to avoid unintentional removal of the length-adjustable belt from the buckle body, in preferred embodiments of the invention, it may be provided that the buckle has at least one elastic biasing element biasing the center web in a direction parallel to the longitudinal direction. By applied by means of the elastic biasing element bias the looped around the central web belt is pressed against one of the transverse webs, without having to be pulled on the tape for this purpose. This can thus be used on the one hand to prevent the tape from being accidentally removed from the buckle body in the unstressed state. Furthermore, by appropriate dimensioning of the elastic Preload element which are generally increased by clamping the band between the central web and the crosspiece holding forces, ie also in the state in which the band is pulled. As a biasing element is for example a coil spring into consideration. The resilient biasing element is conveniently located within one of the folded support webs. Particularly preferred embodiments of the invention provide that in each case at least one elastic biasing element is disposed within each of the bent support webs.

The buckle may, as shown below, have a single buckle body to which both straps are attached. Alternatively, however, a two- or multi-part design of the buckle is conceivable. So z. Example, be provided that the buckle has an additional buckle body, which is detachably connectable to the buckle body with the bent support webs by means of a connecting device, preferably without tools. Under tool-less is to be understood that the connection means by hand, so without the use of tools can be operated to solve the interconnected buckle body from each other and / or to connect again. In such two- or multi-part buckles is then conveniently provided that one of the bands to be joined together is attached directly to the buckle body and the other of the bands to be connected is attached directly to the additional buckle body. The attachment of this band of the additional buckle body on the buckle body then takes place via the connection of the buckle body with the additional buckle body by means of the connecting device. Preferred embodiments provide in these variants, that the connecting device has a locking device for releasably locking together the additional buckle body with the buckle body. The above-mentioned elastic biasing member biases the center bar preferably in a direction away from the additional buckle body direction.

Fig. 1

eine Schrägsicht auf ein erstes Ausführungsbeispiel einer erfindungsgemäßen Schnalle;

Fig. 2

einen vergrößerten Ausschnitt A von Fig. 1;

Fig. 3

eine Ansicht auf die Vorderseite der Schnalle gem. Fig. 1, wobei die über die Schnalle verbundenen Bänder durch strichlierte Linien schematisch angedeutet sind;

Fig. 4

eine Ansicht der Rückseite der Schnalle gem. Fig. 1;

Fig. 5

eine stirnseitige Ansicht zu diesem ersten Ausführungsbeispiel;

Fig. 6

einen Schnitt entlang der Linie BB von Fig. 3;

Fig. 7

ein vergrößertes Detail C von Fig. 6;

Fig. 8

einen Schnitt entlang der Linie DD von Fig. 5.

Fig. 9

eine Frontansicht auf ein zweites erfindungsgemäßes Ausführungsbeispiel, wobei die Schnalle zweiteilig ausgebildet ist;

Fig. 10

den Schnitt EE aus Fig. 9;

Fig. 11

eine perspektivische Darstellung des Ausführungsbeispiels gem. Fig. 9;

Fig. 12

den Schnallenkörper des Ausführungsbeispiels aus Fig. 9 in einer Rückansicht und

Fig. 13

den zusätzlichen Schnallenkörper des Ausführungsbeispiels gem. Fig. 9 in einer Rückansicht.

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:

Fig. 1

an oblique view of a first embodiment of a buckle according to the invention;

Fig. 2

an enlarged section A of Fig. 1 ;

Fig. 3

a view on the front of the buckle gem. Fig. 1 , wherein the bands connected via the buckle are schematically indicated by dashed lines;

Fig. 4

a view of the back of the buckle gem. Fig. 1 ;

Fig. 5

an end view of this first embodiment;

Fig. 6

a section along the line BB of Fig. 3 ;

Fig. 7

an enlarged detail C of Fig. 6 ;

Fig. 8

a section along the line DD of Fig. 5 ,

Fig. 9

a front view of a second embodiment according to the invention, wherein the buckle is formed in two parts;

Fig. 10

the cut EE Fig. 9 ;

Fig. 11

a perspective view of the embodiment gem. Fig. 9 ;

Fig. 12

the buckle body of the embodiment Fig. 9 in a rear view and

Fig. 13

the additional buckle body of the embodiment gem. Fig. 9 in a rear view.

A first embodiment of a buckle according to the invention will be described below with reference to FIG Fig. 1 to 8 explained.

The buckle of the first embodiment is used to connect only in Fig. 3 indicated by dashed lines bands 6, 7, which extend from the buckle in a longitudinal direction 5 (band 6) or against this longitudinal direction 5 (band 7). The buckle has a one-piece buckle body 1 with a first and a second transverse web 2, 3. The buckle body 1 is - relative to the longitudinal direction 5 in the region between the first and the second transverse web 2, 3 - held a central web 4, the limited in the longitudinal direction 5 is displaced.

The first band 6 is guided around the first cross bar 2, wherein for attachment to the first cross bar 2 by a seam 8, the in Fig. 3 is indicated by a dotted line, a loop is formed. The second band is fed from the opposite side below the second transverse web 3 and the central web 4, guided around the central web 4 and through the intermediate space 9 between the central web 4 and the second cross web 3 and subsequently returned below the second transverse web 3. The length of the second band 7 is determined depending on the overlap of the end 10 of the second band 7 with the portion of the band 7 extending to the buckle.

The first transverse web 2, second transverse web 3 and middle web 4 extend transversely to the longitudinal direction 5 of the bands 6, 7.

The first and second transverse web 2, 3 extend between relative to the longitudinal direction 5 right and left side parts 11, 12 of the buckle body 1. The central web 4 crosses the clearance between the side parts 11, 12 and lies with its two end portions on the front of the Buckle directed surfaces of support webs 13a, 13b of the right and left side parts 11, 12.

The support webs 13a, 13b are flat and their surfaces on which the central web 4 rests lie in a common plane.

As support webs 13a, 13b not only the portions of the buckle body 1 are considered on which the central web 4 actually rests in its various possible displacement positions, but also their imaginary linear extensions in and against the longitudinal direction 5 to the respective edge of the buckle body 1. For clarity are the imaginary lines through which the support webs 13a, 13b are delimited from the transverse webs 2, 3, in Fig. 4 shown in dashed lines.

From the mutually away, in the longitudinal direction 5 of the bands to be joined 6, 7 extending edges 14, 15 of the flat support webs 13a, 13b go from storage webs 16a, 16b, seen in cross-section (see. Fig. 6 , the section line BB of this cross section is perpendicular to the longitudinal direction 5) have a bent course. In a first section, the bearing webs 16a, 16b extend away from the plane of the surfaces of the support webs 13a, 13b on which the central web 4 rests, extending in the region adjacent to the end faces 17a, 17b of the central web 4. As a result of the further curved course, following an apex 18 they again extend in the direction of the respective support web 13a, 13b, from the edge 14, 15 of which they are assumed. These sections extending in the direction of the respective support web 13a, 13b have recesses 19a, 19b starting from their front ends extending in the longitudinal direction 5 into which the two ends of the central web 4 protrude. The respective recesses 19a, 19b in the longitudinal direction 5 delimiting edges 20, 21 form stops for the central web 4 in order to limit the range of the displaceability of the central web 4 in and against the longitudinal direction 5. The parallel to the longitudinal direction 5 extending edge 22 of the recess 19a, 19b forms a guide for the central web 4, which limits the separation of the central web 4 from the respective support web 13a, 13b. It must be present only sufficient for the displacement of the central web 4 game. Preferably, this measured perpendicular to the support web 13a, 13b game is less than 2mm, more preferably less than 1 mm.

In the embodiment shown, the bearing webs 16a, 16b seen in cross-section have a continuous arcuate course. It would also be conceivable and possible, for example, for the bearing webs 16a, 16b to be connected to the respective support web 13a, 13b via a more or less sharp bend. The lying in front of the respective end face of the central web 4 section could then be flat and this section could be connected via a more or less sharp bend with the recess 19 a, 19 b having portion. Overall, turn bent support webs 16a, 16b are formed, the free ends each have to the support web 13a, 13b, from which they go out.

In the embodiment, the first cross bar 2 has a middle bent portion 23 to form a handle member on which the buckle body 1 can be taken and tilted to further pull the second band 7 out of the buckle and to increase the length of the second band 7.

Preferably, the buckle body 1 is made of metal. For the central web 4, a metal training is also preferred.

The buckle body 1 can advantageously be formed from a plate on which the corresponding cutting and forming operations are carried out. To form the bearing webs 16a, 16b, the plate with the already formed recesses 19a, 19b hereby deformed by bending.

The thickness of the plate is in this case preferably greater than 1 mm, more preferably greater than 1.5 mm.

The thickness of the central web 4 is preferably greater than 1 mm, more preferably greater than 1.5 mm.

For example, the buckle body 1 and the central web 4 may have a thickness of 2 mm.

In principle conceivable and possible, it would also be to form the buckle body 1 of several, rigidly interconnected parts.

In other words, the buckle body 1 could also be described as having a main portion lying in a plane with a window recess which is crossed by the displaceable central web 4, the bent storage webs 16a, 16b extending from this main portion on both sides. From this planar main portion can further be formed a bent-up portion 23 for forming a handle portion.

It would also be conceivable and possible to design the buckle body 1 with more than two fixed transverse webs 2, 3 and / or to provide more than one middle web 4, which is held displaceably on the buckle body 1 in the described manner.

If in the context of this document of ribbons is mentioned, as well as straps and other flexible strip-shaped parts should be included, in particular also support, holding and safety straps.

In the second embodiment of the invention acc. of the Fig. 9 to 13 are essential parts analogous to the first embodiment, so that reference may be made in this regard to the above description of the first embodiment. In the following, we essentially discuss the differences between the first and the second exemplary embodiment.

A first difference is that in the second embodiment, the buckle has a buckle body 1 designed according to the invention and, moreover, an additional buckle body 24. These two buckle bodies 1 and 24 can be releasably connected to one another by means of a connecting device, which is explained below in more detail as an example. In contrast to the first exemplary embodiment, the first band 6 is not attached to the buckle body 1 but to the additional buckle body 24. The latter has for this purpose a third transverse web 31, around which the first band 6 can be looped through the opening 32. A fixation of the first band 6 on the additional buckle body 24 can then z. B. via a seam 8 analogous to the first embodiment. That with the first band 6 to be connected via the buckle strap 7 is attached to the buckle body 1 in the second embodiment, as well as in the first embodiment. Analogously to the first embodiment, the second band 7 is supplied from the opposite side below the second transverse web 3 and the central web 4, guided around the central web 4 and through the intermediate space 9 between the central web 4 and the second cross web 3 and further below the second cross web recycled. The length of the second band 7 is determined depending on the overlap of the end 10 of the second band 7.

In order to prevent unintentional loosening or displacement of the second band 7 in the untensioned state and / or to generally increase the holding forces which hold the second band 7 on the buckle body 1, at least one elastic biasing element 25 can be provided, as shown in the second embodiment be, which biases the central web 4 in a direction parallel to the longitudinal direction 5. In the embodiment shown are two such elastic biasing elements 25. These are each disposed within the bent support webs 16a and 16b. As elastic biasing element 25 are all known in the prior art, suitable elastic body in question. In the embodiment shown, the resilient biasing elements 25 are each a helical spring. The one end of the elastic biasing member is fixed in the respective bent support web 16a and 16b. At the opposite end of the elastic biasing member 25 of the central web 4 is located, so that the central web 4 is thereby biased in a direction 33 parallel to the longitudinal direction 5 or spring-loaded. In the exemplary embodiment shown, the bias leads in the direction of the second transverse web 3, so that the band 7 is clamped by means of the bias of the biasing elements 25 between the central web 4 and the second transverse web 3. Fig. 10 shows the section EE Fig. 9 in which the position of the elastic biasing element in the support web 16a is particularly easy to see. The formation of the support webs 16a, 16b, and the support webs 13a and 13b and the recesses 19a and 19b, as in the first embodiment with reference to FIGS. 1 to 8 shown, done. This is especially true for all, based on the FIGS. 4 to 8 explained details. Notwithstanding the first embodiment, cuts 26 are provided in the second embodiment in the support webs 16a and 16b. However, these do not change the general training and function of the right and left side parts 11 and 12 or the support bars 16a and 16b. The cuts 26 may also be omitted accordingly, so that the side parts 11 and 12 could be executed as in the first embodiment except for the additionally existing biasing elements in their interaction with the central web 4 and the transverse webs 1 and 2. Accordingly, a bias of the central web 4 in a direction parallel to the longitudinal direction 5 could take place in the first embodiment, if one integrates there the elastic biasing elements 25 of the second embodiment.

As already explained, the buckle of the second embodiment of the invention is designed in two parts. It has an additional buckle body 24, which is detachably connectable to the buckle body 1 by means of a connecting device, preferably without tools. Such two-part but also more than two-part buckles are basically known in the prior art in a variety of embodiments. The embodiment shown here shows only one of many possible variants. The same applies to the connecting device for connecting the buckle body 1 and the additional buckle body 24. In the embodiment shown, the connecting device is a locking device for releasably locking the additional buckle body 24 to the buckle body 1. In the embodiment shown, the connecting device or latching device comprises a female male part 29 in which a male male part 28 can be releasably attached. The male insertion part 28 has for this purpose, as in particular in Fig. 13 to see shoulders 30, which in the inserted state gem. of the FIGS. 9 and 11 are in operative connection with here not shown in detail counterparts of the actuating lever 27, so that the two buckle bodies 1 and 24 in the interconnected position acc. FIGS. 9 and 11 locked together. By pressing the operating lever 27, in particular by hand, then the additional buckle body 24 can be pulled out of the buckle body 1, so that the two buckle body, as in the FIGS. 12 and 13 shown, are separated from each other. Such buckle connections are, as already mentioned, known per se in a large number of embodiments, so that no further explanation appears necessary here. In principle, the invention can be combined with all possible known connection devices or two- or multi-part embodiments of buckles. The variant shown here is just one example. In particular, it should be pointed out that it is not mandatory that the male insertion part 28 is arranged on the additional buckle body 24 and the female insertion part 29 on the buckle body 1. A reverse arrangement is also possible. Finally, it should be noted that in the second embodiment, both the buckle body 1 and the additional buckle body 24 are formed as formed from sheet metal or plates components. As a result, the buckles according to the invention can be produced simply and inexpensively. In particular, in this case also metal sheets can be processed, which subsequently should not be cured again, as z. B. is the case with water-resistant steels. Due to the cold deformation occurring during bending of the sheets a corresponding hardening process is already achieved during bending. Finally, it should be noted, however, that the invention can of course be implemented not only in the form of buckled bodies of curved plates.

Legend to the reference numbers:

1

buckle body

2

first crossbar

3

second crossbar

4

center web

5

longitudinal direction

6

first volume

7

second volume

8th

seam

9

gap

10

The End

11

right side part

12

left side panel

13a, 13b

support web

14

edge

15

edge

16a, 16b

storage Steg

17a, 17b

front

18

vertex

19a, 19b

recess

20

edge

21

edge

22

edge

23

Area

24

additional buckle body

25

elastic biasing element

26

incision

27

confirmation lever

28

male plug-in part

29

female plug-in part

30

shoulder

31

third crossbar

32

opening

33

direction

Claims (14)

A buckle for connecting first and second straps (6, 7) comprising a buckle body (1), the left and right side parts (11, 12) relative to the longitudinal direction (5) of the straps (6, 7) to be joined and transverse to the longitudinal direction (5) of the bands (6, 7) to be joined between the left and right side parts (11, 12) extending first and second transverse webs (2, 3), and a transversely to the longitudinal direction (5) of the bands to be joined (6, 7) extending, displaceable central web (4) which is displaceably mounted by the left and right side parts (11, 12) in the longitudinal direction (5) of the tapes to be connected (6, 7), wherein the central web (4) on support webs (13a, 13b) of the side parts (11, 12) rests, characterized in that of the support webs (13a, 13b) in each case a bent storage web (16a, 16b) emanates, which lies in front of the respective end side of the central web (4) section and one to the support web (13a, 13b), from which it starts, knows end portion with a recess (19a, 19b), in which the respective end of the central web (4) protrudes. Buckle according to claim 1, characterized in that the recess (19a, 19b) starts from a free edge of the support web (16a, 16b) extending in the direction of the longitudinal extent (5) of the tapes (6, 7) to be joined and to the support web (16). 13a, 13b) from which the storage web (16a, 16b) emanates. Buckle according to claim 2, characterized in that the edge of the support web (16a, 16b), from which the recess (19a, 19b) emanating, on both sides of the recess (19a, 19b) on the support web (13a, 13b) is applied, of which Storage web (16a, 16b) goes out, or from this support web (13a, 13b) has a distance which is smaller than the thickness of the central web (4). Buckle according to one of claims 1 to 3, characterized in that the surfaces of the support webs (13a, 13b), on which the central web (4) rests lie in a common plane. Buckle according to one of claims 1 to 4, characterized in that the bearing webs (16a, 16b) seen in cross-section each have a circular arc-shaped course. Buckle according to one of claims 1 to 5, characterized in that the buckle body (1) is formed by a curved plate. Buckle according to one of claims 1 to 6, characterized in that the central web (4) is formed by a flat plate. Buckle according to one of claims 1 to 7, characterized in that the buckle comprises at least one elastic biasing element (25) which biases the central web (4) in a direction parallel to the longitudinal direction (5). Buckle according to claim 8, characterized in that the elastic biasing element (25) is a helical spring. Buckle according to claim 8 or 9, characterized in that the elastic biasing element (25) within one of the bent support webs (16a, 16b) is arranged. Buckle according to claim 8 or 9, characterized in that in each case at least one elastic biasing element (25) is arranged within each of the bent bearing webs (16a, 16b). Buckle according to one of claims 1 to 11, characterized in that the buckle has at least one additional buckle body (24) which is detachably connectable to the buckle body (1) by means of at least one connecting device, preferably without tools. Buckle according to claim 12, characterized in that the connecting device has a latching device for releasably locking together the additional buckle body (24) with the buckle body (1). Buckle according to one of claims 8 to 11 and one of claims 12 or 13, characterized in that the elastic biasing element (25) the central web (4) in a direction of the additional buckle body (24) directed away direction (33).

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