EP2853167B1 - Tool for applying rivet elements to a surface element and fastening system for the same - Google Patents

Description

The invention relates to a tool for attaching rivet elements on a surface element and a fastening system for this purpose. The term rivet element is to be interpreted in this context, and includes all elements by cold forming, flanging or other riveting operations on pliable and / or flexible surface elements such as clothing, fabrics, leather, imitation leather, plastics, films, bags, backpacks, suitcases, purses etc . are fastened. These include, but are not limited to, press studs, press button parts, decorative studs, fastening rivets, eyelets, buttons and other decorative elements.

From people who deal with hobby tailoring, handicrafts and other creative activities, or who simply want to alter or decorate items such as garments, belts or even decorative elements, there is a need for hand tools to various rivet elements, such as push buttons, push button parts, buttons, fastening rivets , Eyelets, decorative rivets, other decorative elements or the like on a surface element of a sheet material, such as leather, synthetic leather, textile material, plastic or the like by cold forming, in particular by crimping, to install.

The US 2,425,586 describes a device for attaching decorative elements, such as nails or rivets on a surface element. Here, however, only ornamental elements can be attached. An attachment, such as push buttons or the like, is not provided.

The US 1,438,692 as well as the EP 0 050 004 B1 each describe devices for attaching eyelets. Here is by means of a tool on which a force is applied, an eyelet in a web-like or flat material, attached. An attachment of snaps or the like is not provided here, nor a mounting of decorative rivets.

The documents US 2,413,702 and US 2,615,590 describe each hand tools for attaching snaps on flat materials. There are provided an upper and a lower tool part, which must be brought together in operative connection with the interposition of the rivet part concerned in order to fasten the rivet on the surface element. However, it is difficult to position and align both tool parts to each other to achieve a secure and complete correct riveting.

The document US 3,964,660 also describes a craft train for mounting parts of printheads. Here it is not intended to attach other elements, such as decorative elements. To attach two work steps are required, which is awkward for an operator.

The document EP 0 121 900 B1 also describes a hand tool for attaching a variety of rivet elements, such as snaps, eyelets, fastening rivets, decorative rivets, buttons or the like. However, with this hand tool, a subject rivet can not be placed anywhere on a garment. Rather, the tool parts are connected to each other so that they can be arranged only in the vicinity of the edge of the surface element. In addition, several steps are necessary here to secure a corresponding rivet.

The object of the invention is therefore to avoid the aforementioned disadvantages of the various tools and to create a new tool which can attach a wide variety of rivet elements in the simplest possible way at any point in a surface element. It is another object of the invention to provide a fastening system, which can fasten different rivet elements. These objects are achieved by the characterizing features of claims one and nine, which have the following special significance.

The tool according to the invention has an anvil and a stamp, wherein the anvil below the surface element and the stamp on the upper side of the surface element can be arranged. With interposition of the surface element and the parts of the rivet element punch and anvil can be brought into operative connection. For this purpose, an actuating surface is provided on the punch, which can bring the punch with the anvil in operative connection by applying force, for example by a hammer blow or the like. In the invention it is now provided that in the anvil, the lower part of the rivet element and / or the punch, the upper part of the rivet element is arranged. Anvil and stamp form two structurally separate or separable parts that can be used at any point of the surface element. For positioning of the anvil and punch to each other, the punch is insertable into a frame having positioning means, which are engageable with one or more Gegenpositioniermitteln the anvil in operative connection to align anvil and punch to each other. When a force is applied to the actuating surface of the punch in this position, the rivet element located between the anvil and the punch can be fixed to the surface element. For this purpose, only a single operation of the tool is necessary. Several operating steps, as known in the art are not necessary here. Depending on the rivet element, it may be necessary to first insert a hole in the surface element before the rivet element is attached. However, this is also easily possible with the tool according to the invention by providing a corresponding punching tool on the anvil or on the punch and then actuating the tool. By the aforementioned measures, the tool according to the invention is easy and comfortable to use. It is very easy, so the two parts of the tool, namely to align the anvil and the punch to each other and carry out a single operation to set the rivet on the surface element. This is for an operator very comfortable. Furthermore, an upper molding tool and / or a lower molding tool are provided for the stamp. These can be arranged detachably on the respective tool part and adapted to the shape of the rivet element and / or on its upper part or on its lower part and serve for flanging the rivet element or its parts when the tool is actuated. If the molds are detachable, it is possible to use the same tool to process the most varied sizes and shapes of rivet elements. Thus, only the corresponding dies need to be replaced so that they fit the rivet element to be processed to rivet the various rivet elements. This is particularly easy for an operator, since only one tool for a variety of shapes and sizes of rivet elements is needed. The use of molds in general serves for a correct beading during the attachment of the rivet elements.

Particularly preferably, the anvil has a round outer circumference and / or a round groove, which serve as Gegenpositioniermittel. On the frame several, preferably three arms are provided, which are designed as positioning. The arms of the frame can then be brought into operative connection with the outer circumference of the anvil or with the groove of the anvil. Here, the outer circumference of the anvil is enclosed by the arms or penetrate the arms a little into the corresponding groove on the anvil. The latter is particularly advantageous because the frame is still better halterbar on the anvil and can not slip. A number of three arms is advantageous because they can not tilt regardless of the nature of the work surface being worked on and other constraints. When the arms penetrate into the groove of the anvil, a particularly good alignment of anvil and punch is given to each other. But even if the arms enclose the outer circumference of the anvil, the tool parts are well aligned with each other. If now the punch is actuated by applying a force to the actuating surface, the anvil and punch interact optimally.

Preferably, the stamp is releasably arrangeable in the frame and is movable upon application of the actuating surface with a force in the frame in the direction of the anvil. This is a particularly simple design of stamp and frame. In addition, the stamp and frame can be replaced independently if necessary.

When using an upper releasable molding tool, one or more latching elements are particularly preferably provided on the stamp and / or on the molding tool itself. By these locking elements, the upper mold is locked or clamped on the stamp. Thus, the upper mold can be locked on the stamp and moved with this when operating the tool train.

Furthermore, the anvil preferably has one or more recesses, which are partially covered by the anvil arranged lower mold of this. If the lower mold is to be removed from the anvil, it can then be engaged with the aid of the recesses by an operator by hand or with a tool in order to simply remove the lower mold from the anvil.

In a further preferred embodiment, at least one scale is provided on the stamp and / or on the anvil and / or on the frame. This scale can be used to attach a plurality of rivet elements equidistant from each other, for example, to form a button or snap button strip or even when attaching several ornamental or fastening rivets in a row. The scale then helps in the positioning of the different rivet elements to each other, as in this way the distance on the surface element is easy to read.

Preferably, the stamp and / or the anvil and / or the frame entirely or partially made of a plastic. Thus, the individual parts are easy to manufacture and the tool can have a low weight.

Furthermore, the invention comprises a fastening system for rivet elements on a surface element, which comprises at least one of the tools described above, as well as a plurality of sets of upper and lower molds. Such a fastening system can serve to fasten rivet elements of different shapes and sizes. Thus, an operator only has to be in possession of a fastening system in order to fasten applications of rivet elements to a wide variety of surface elements made of different materials.

Fig. 1:

einen erfindungsgemäßen Amboss perspektivisch,

Fig. 2:

den Amboss aus Fig. 1 in Draufsicht,

Fig. 3:

ein erfindungsgemäßes Gestell mit Stempel perspektivisch,

Fig. 4:

Stempel und Gestell aus Fig. 3 in Ansicht von unten,

Fig. 5:

eine perspektivische Explosionsdarstellung von Amboss, Formwerkzeug und unterem Teil des Nietelementes,

Fig. 6:

die Bauteile aus Fig. 5 in Draufsicht,

Fig. 7:

eine perspektivische Explosionsdarstellung von Stempel, Gestell, oberem Formwerkzeug und oberem Teil des Nietelementes,

Fig. 8:

die Bauteile aus Fig. 7 in Ansicht von unten,

Fig. 9:

Stempel, Gestell und Amboss in Explosionsdarstellung in Seitenansicht,

Fig. 10:

Amboss, Gestell und Stempel zusammengebaut perspektivisch,

Fig. 11:

die Bauteile aus Fig. 10 in Seitenansicht,

Fig. 12:

das Werkzeug mit Teilen des Nietelements und Flächenelement in Seitenansicht.

Further advantages and embodiments will become apparent from the following description, the dependent claims and the drawings. In the drawings, the tool is shown in one embodiment. Show it:

Fig. 1:

an anvil according to the invention in perspective,

Fig. 2:

the anvil Fig. 1 in plan view,

3:

an inventive frame with punch in perspective,

4:

Stamp and frame off Fig. 3 in bottom view,

Fig. 5:

an exploded perspective view of anvil, mold and lower part of the rivet element,

Fig. 6:

the components off Fig. 5 in plan view,

Fig. 7:

an exploded perspective view of the punch, frame, upper mold and upper part of the rivet element,

Fig. 8:

the components off Fig. 7 in bottom view,

Fig. 9:

Stamp, frame and anvil in exploded view in side view,

Fig. 10:

Anvil, frame and stamp assembled in perspective,

Fig. 11:

the components off Fig. 10 in side view,

Fig. 12:

the tool with parts of the rivet element and surface element in side view.

The Fig. 1 and 2 show an anvil 20 according to the invention with a round outer periphery 22. Parallel to this outer circumference 22 is also a round groove 24. This can serve as a counter-positioning means 21 to a positioning means 12 of the frame 11. This will be explained later.

In addition, three recesses 25 are provided on the anvil 20. These serve, as will also be shown in more detail, to easily remove an anvil 20 arranged lower mold 23 from the anvil 20.

Furthermore, three scales 26 are provided on the anvil 20. With the aid of these scales 26, a plurality of rivet elements 40 can be arranged at a defined distance from one another on a surface element 50. The scales 26 help to measure the respective distances between the rivet elements 40 and to position the rivet elements 40 correctly.
The 3 and 4 show a punch 30 according to the invention, which was introduced into a frame 11. The frame 11 comprises three arms 13, on each of which a positioning means 12 is arranged in the lower region, or serve the lower parts of the arms 13 as a positioning means 12. The positioning means 12 can with the from the Fig.1 and 2 known Gegenpositioniermittel 21 in the form of the groove 24 are brought into operative connection. By using three arms 13, each with a positioning means 12 ensures that the frame 11 is always safe on the anvil 20 and does not wobble.

In the lower region of the punch 30, one recognizes the two latching elements 32. These serve to lock an upper forming tool 33, which will be shown later, on the punch 30, so that the upper forming tool 33 moves with the punch 30.

In the FIGS. 5 and 6 It is now shown how a lower mold 23 and a lower part 42 of the rivet element 40 can be arranged on the anvil. For this purpose, first the lower mold 23 is brought to the anvil 20 for conditioning and then the lower part 42 of the rivet element 40. As in particular from Fig. 6 can be seen, the recesses 25 protrude beyond the outer periphery of the lower mold 23. If an operator grasps with one's finger or a tool into one of the recesses 25, it can engage behind the lower molding tool 23 and simply remove it from the anvil 20.

The FIGS. 7 and 8 show a similar situation for the stamp 30. This is here again in society 11 arranged. First, an upper mold 33 is latched on the punch 30 by means of the two locking elements 32. Thereafter, the upper part 41 of the rivet 40. This can either be locked on the upper mold 33 or the punch 30 or just at the desired location on the Surface element 50 are placed to bring by actuation of the punch 30 by means of a force applied to the actuating surface 31, the upper 41 and lower part 42 of the rivet element 40 in operative connection with each other and to rivet on the surface element 50.

Out Fig. 9 the entire structure of the tool 10 can be seen. It can be seen that the punch 30 is brought into the frame 11, which in turn can come to rest on the anvil 20. However, the punch 30 is detachable from the frame 11. In its upper part, the punch 30 has the Actuating surface 31. This is in the assembled state also from the 10 and 11 seen. Here you can also see that the arms 13 of the frame 11 come with their positioning means 12 in the formed as Gegenpositioniermittel 21 groove 24 of the anvil 20 to the plant. Between the punch 30 and the anvil 20, a gap is provided, which, however, when actuated by the two parts 41, 42 of the rivet element 40 are filled. If a force is applied to the actuating surface 31, then the punch 30 moves in the frame 11 in the direction of the anvil 22 so that a deformation of the two parts 41, 42 of the rivet element 40 can take place. If upper 33 and lower forming tools 23 are also provided, targeted beading of one or both parts 41, 42 of the rivet element 40 takes place, which leads to riveting of the rivet element 40 on the surface element 50.

Fig. 12 Finally, the tool 10 with punch 30, frame 11 and anvil shows 20. However, there are also a surface element 50 and an upper 41 and a lower part 42 of a rivet element 40 shown symbolically. It can be seen that the anvil 20 is arranged below the surface element 50, while the stamp 30 with the frame 11 is located on the upper side 51 of the surface element 50. In the symbolic representation of the two parts 41, 42 of the rivet element 40, the upper part 41 is also arranged on the upper side 51 of the surface element 50, while the lower part 42 is below the surface element 50 near the anvil 20. When the actuation surface 31 is acted upon by a force, cold deformation of one or both parts 41, 42 takes place in order to produce the rivet element 40.

Finally, it should be pointed out that the embodiments shown here are merely exemplary realizations of the invention. This is not limited to this. On the contrary, modifications and modifications are possible. For example, it is conceivable that the frame has more or less arms. In addition, the positioning means and Gegenpositioniermittel can be designed differently.

LIST OF REFERENCE NUMBERS

10

Tool

11

frame

12

positioning

13

poor

20

anvil

21

Gegenpositioniermittel

22

Outer circumference of 20

23

Lower mold

24

groove

25

recess

26

scale

30

stamp

31

actuating surface

32

locking element

33

Upper mold

40

rivet

41

Upper part of 40

42

Lower part of 40

50

surface element

51

Top of 50

Claims (7)

1. A tool (10) for applying rivet elements (40), such as press studs, parts of press studs, eyes. decorative rivets, attachment rivets, buttons or similar onto a panel element (50) made from a flexible component and/or flexible, flat material such textile material, leather, imitation leather or similar, by cold forming,
   whereby, an anvil (20) is provided that can be arranged below the panel element (50),
   whereby, a stamp (30) is also intended that can be arranged above the top side (51) of the panel element (50) and that can be attached below an intermediate connection of the panel element (50) using the anvil (20) and is in operative connection,
   whereby, an activation area (31) is provided on the stamp (30) which can be brought into operative connection with the anvil (20) by applying force to the stamp (30),
   whereby, in the anvil (20), the lower part (42) of the rivet element (40) and the upper part (41) of the rivet element (40) are arranged in or on the stamp (30)
   and, whereby, the anvil (20) and stamp (30) present two structurally separated or separable parts
   characterized in that,
   the stamp (30) can be inserted into a frame (11) that features a positioning device (12) which can be brought into operative connection with one or multiple counter-positioning devices (21) of the anvil (20), in order to align the anvil (20) and stamp (30) to one another,
   and that, when positioning the anvil (20) and stamp (30) to one another, the rivet element (40) is determined by applying a force to the activating area (31) on the panel element (50)
   that, an upper forming tool (33) is provided for the stamp (30) and/or a lower forming tool (23) is provided for the anvil (20), that can be detached and adapted to the form of the rivet element (40) and/or its upper part (41) and/or its lower part (42) and is used for the cold forming of the rivet element (40) and its parts (41, 42) when activating the tool (10)
   that one or multiple engaging elements (32) or recesses (25) are provided through which the upper forming tool (33) can be attached to and removed from the stamp (30) and/or the lower forming tool can be attached to and removed from the anvil (20).
2. A tool (10) in accordance with claim 1, characterized in that the anvil (20) significantly features a round, external circumference (22) and/or a significantly round groove (24) which is used as a counter-positioning device (21), whilst the frame (11) has multiple arms (13), in particular three, that are formed as a positioning device (12) and can encompass the external circumference (22) of the anvil (20), or can be inserted into the groove (24) of the anvil (20), at least partially.
3. A tool (10) in accordance with one of the claims 1 or 2, characterized in that the stamp (30) is arranged detachable on the frame (11)
   and that the stamp (30) moves in the frame (11) towards the anvil (20) when a force is applied to the activating area (31).
4. A tool (10) in accordance with one of the claims 1 to 3, characterized in that the anvil (20) features one or multiple recesses (25) that are partially covered by the lower forming tool (23) arranged on the anvil (20) and that can be reached by a person or tool in order to remove the lower forming tool (23) from the anvil (20).
5. A tool (10) in accordance with one of the claims 1 to 4, characterized in that a scale (26) is provided on the stamp (30) and/or anvil (20) and/or the frame (11).
6. A tool (10) in accordance with one of the claims 1 to 5, characterized in that the stamp (30) and/or anvil (20) and/or the frame (11) is completely or partially made from plastic.
7. Fastening system for rivet elements (40) such as press studs, parts of press stud, eyes, decorative rivets, attachment rivets, buttons or similar on a panel element (50) comprising of a minimum of one tool (10) in accordance with one of the claims 1 to 6 and multiple sets of upper (41) and lower forming tools (42).

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