DE29707669U1 - Punch rivet - Google Patents
Punch rivetInfo
- Publication number
- DE29707669U1 DE29707669U1 DE29707669U DE29707669U DE29707669U1 DE 29707669 U1 DE29707669 U1 DE 29707669U1 DE 29707669 U DE29707669 U DE 29707669U DE 29707669 U DE29707669 U DE 29707669U DE 29707669 U1 DE29707669 U1 DE 29707669U1
- Authority
- DE
- Germany
- Prior art keywords
- groove
- shaft
- punch rivet
- punch
- rivet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000007704 transition Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 15
- 239000002184 metal Substances 0.000 description 4
- 238000004080 punching Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/04—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of riveting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Insertion Pins And Rivets (AREA)
Description
StanznietPunch rivet
Die Neuerung betrifft einen Stanzniet nach dem Oberbegriff des Anspruches 1.The innovation relates to a punch rivet according to the preamble of claim 1.
Stanzniete dienen der Verbindung zweier flacher Werkstücke. Der Stanzniet wird hierbei unter Bildung zweier Stanzlöcher durch die Werkstücke gedrückt. Das in Stanzrichtung gesehen untere Werkstück besteht aus einem plastisch verformbaren Material, üblicherweise einem Blech. Um das Schaftende herum wird in das Blech eine Ringnut geprägt, so daß Material in die Schaftnut gedrückt wird, die nahe dem Schaftende angeordnet ist.Punch rivets are used to connect two flat workpieces. The punch rivet is pressed through the workpieces to form two punch holes. The workpiece, which is the lower one in the punching direction, is made of a plastically deformable material, usually a sheet of metal. An annular groove is embossed into the sheet of metal around the shaft end so that material is pressed into the shaft groove, which is located near the shaft end.
Bei einem bekannten Niet weist die Schaftnut im Querschnitt Trapezform auf. Werden Bleche aus einem hartem Werkstoff verarbeitet, dann besteht die Gefahr, daß der Schaft im Bereich der Schaftnut bricht. Besteht das obere Werkstück aus einem weichen Material, wie beispielsweise aus einem weichen Blech oder aus Kunststoff, dann wird von der oberen Kante der Nut Material vom oberen Werkstück abgeschert und in die Schaft-Nut gedrückt. Hierdurch wird das Materialaumahmevolumen für das Material des unteren Werkstücks reduziert, wodurch eine schlechte Nietverbindung bewirkt wird. Besteht das obere Werkstück aus Kunststoff, kann es zum gesamten Ausfüllen der Schaftnut mit Kunststoff kommen, so daß die Nietverbindung nicht brauchbar ist. Die Stanzniete werden als Drehteil hergestellt.In a known rivet, the shaft groove has a trapezoidal cross-section. If sheets made of a hard material are processed, there is a risk that the shaft will break in the area of the shaft groove. If the upper workpiece is made of a soft material, such as soft sheet metal or plastic, then material from the upper workpiece is sheared off from the upper edge of the groove and pressed into the shaft groove. This reduces the material absorption volume for the material of the lower workpiece, which causes a poor rivet connection. If the upper workpiece is made of plastic, the shaft groove can be completely filled with plastic, making the rivet connection unusable. The punch rivets are manufactured as turned parts.
Es besteht die Aufgabe, den Stanzniet so auszubilden, daß keine Bruchgefahr besteht und sichergestellt ist, daß die Schaftnut ausschließlich mit dem Material des unteren Werkstücks ausgefüllt wird.The task is to design the punch rivet in such a way that there is no risk of breakage and it is ensured that the shaft groove is filled exclusively with the material of the lower workpiece.
Gelöst wird diese Aufgabe mit den Merkmalen des Anspruches 1. Vorteilhafte Ausgestaltungen sind den Unteransprüchen entnehmbar.This problem is solved with the features of claim 1. Advantageous embodiments can be found in the subclaims.
Ein Ausfiihrungsbeispiel wird nachfolgend an Hand der Zeichnungen näher erläutert. Es zeigen:An example of implementation is explained in more detail below using the drawings. They show:
Fig. 1 einen Schnitt durch zwei Blechteile, die über einen Stanzniet nach dem Stand der Technik miteinander verbunden sind; und Fig. 1 shows a section through two sheet metal parts which are connected to each other by a punch rivet according to the prior art; and
Fig. 2 eine der Figur 1 entsprechenden Schnitt mit einem Stanzniet gemäß der neuen Bauform. Fig. 2 shows a section corresponding to Figure 1 with a punch rivet according to the new design.
Der Stanzniet gemäß Figur 1 weist eine Schaftnut 1 auf, welche im Querschnitt trapezförmig ausgebildet ist. Bei dem Material des oberen Bleches A handelt es sich um ein weiches Material. Beim Einstanzen des Niets wird durch die obere Kante 2 der Nut 1 Material vom oberen Blech A abgeschert und gelangt in die Nut 1. Wird um das Schaftende herum die Nut 7 geprägt, so gelangt nur ein Teil des Materials des unteren Blechs B in die Nut 1. Da die Festigkeit der Nietverbindung ausschließlich bestimmt wird, wieviel Material vom unteren Blech B in die Nut 1 eindringt, ist erkennbar, daß die Festigkeit nicht ausreichend ist.The punch rivet according to Figure 1 has a shaft groove 1 which is trapezoidal in cross-section. The material of the upper sheet A is a soft material. When the rivet is punched, material from the upper sheet A is sheared off by the upper edge 2 of the groove 1 and enters the groove 1. If the groove 7 is formed around the shaft end, only part of the material from the lower sheet B enters the groove 1. Since the strength of the rivet connection is determined exclusively by how much material from the lower sheet B penetrates into the groove 1, it is clear that the strength is not sufficient.
Der Stanzniet nach Figur 2 weist einen kegelstumpfförmigen Nietkopf 5 und einen Schaft 6 auf. Nahe dem Schaftende ist die Schaftnut 3 angeordnet. Diese Schaftnut 3 ist konkav ausgebildet, und zwar mit einem im Querschnitt im wesentlichen konstanten Radius. Die an den Schaft 6 angrenzenden Flanken der Nut 3, insbesondere die obere Flanke 8, verlaufen spitzwinklig zum Schaft 6, im gezeigten Ausfiihrungsbeispiel unter einem Winkel von etwa 15°. Der Übergang zwischen der Nut 3 und dem Schaft 6 kann jeweils verrundet sein.The punch rivet according to Figure 2 has a truncated cone-shaped rivet head 5 and a shaft 6. The shaft groove 3 is arranged near the shaft end. This shaft groove 3 is concave, with a radius that is essentially constant in cross-section. The flanks of the groove 3 that are adjacent to the shaft 6, in particular the upper flank 8, run at an acute angle to the shaft 6, in the embodiment shown at an angle of approximately 15°. The transition between the groove 3 and the shaft 6 can be rounded in each case.
Die Konkavform der Nut 3 stützt den Stanzbereich ab und bildet keine Sollbruchstelle. Es können höherfeste Werkstoffe verarbeitet werden. Die Nut 3 kann etwa 80 % mehr Material des unteren Bleches B aufiiehmen, als wie dies beim Stand der Technik der FallThe concave shape of the groove 3 supports the punching area and does not form a predetermined breaking point. Higher-strength materials can be processed. The groove 3 can accommodate around 80% more material from the lower sheet B than is the case with the state of the art
ist. Die flache Flanke 8 und der Übergang 4 vermeiden ein Mitnehmen des Werkstoffs des oberen Blechs A, womit gewährleistet ist, daß die Nut 3 beim Prägen der Nut 7 ausschließlich mit dem Material des unteren Bleches B gefüllt wird.The flat flank 8 and the transition 4 prevent the material from the upper sheet A from being taken along, which ensures that the groove 3 is filled exclusively with the material from the lower sheet B when the groove 7 is embossed.
Versuche haben gezeigt, daß die statischen und dynamischen Belastungen der Nietverbindung nach Figur 2 erheblich gegenüber dem Stand der Technik verbessert sind.Tests have shown that the static and dynamic loads of the riveted joint according to Figure 2 are significantly improved compared to the state of the art.
Der Stanzniet nach Figur 2 kann durch Formwalzen hergestellt werden, was eine erhebliche Verbilligung gegenüber dem Stand der Technik mit sich bringt.The punch rivet according to Figure 2 can be produced by forming rolls, which results in a significant reduction in cost compared to the state of the art.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29707669U DE29707669U1 (en) | 1997-04-28 | 1997-04-28 | Punch rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29707669U DE29707669U1 (en) | 1997-04-28 | 1997-04-28 | Punch rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE29707669U1 true DE29707669U1 (en) | 1997-07-03 |
Family
ID=8039660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE29707669U Expired - Lifetime DE29707669U1 (en) | 1997-04-28 | 1997-04-28 | Punch rivet |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE29707669U1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013945A1 (en) * | 1998-12-21 | 2000-06-28 | Kerb-Konus-Vertriebs-GmbH | Self-piercing rivet |
| DE29908928U1 (en) * | 1999-05-21 | 2000-10-05 | Eibes Kerb Konus Gmbh | Stamped embossed rivet |
| DE10259334C1 (en) * | 2002-12-18 | 2003-12-24 | Sfs Intec Holding Ag Heerbrugg | Punch rivet for a connection to sheets and method for setting such a punch rivet |
| DE10259369B3 (en) * | 2002-12-18 | 2004-05-06 | Sfs Intec Holding Ag | Device to set punch rivet in metal plates has upper sleeve with sliding die, lower stationary die to hold rivet shaft during setting, and enclosing tensioning sleeve to support metal plates |
| DE102005031916A1 (en) * | 2005-07-07 | 2007-03-15 | Böllhoff Verbindungstechnik GmbH | Joining element for mechanical joining |
| CN102822538A (en) * | 2010-01-27 | 2012-12-12 | 托克斯印刷技术有限及两合公司 | Connection element and method for producing a connection element |
| DE102012011020A1 (en) | 2012-06-05 | 2013-12-05 | Newfrey Llc | Punch rivet, rivet connection and riveting method |
| CN106090102A (en) * | 2016-08-26 | 2016-11-09 | 常州市莱特气弹簧有限公司 | Safety air-leg |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1252615B (en) * | 1960-08-04 | |||
| DE3640484A1 (en) * | 1986-11-27 | 1988-06-09 | Rheinmetall Gmbh | Process for securing a shearing pin |
-
1997
- 1997-04-28 DE DE29707669U patent/DE29707669U1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1252615B (en) * | 1960-08-04 | |||
| DE3640484A1 (en) * | 1986-11-27 | 1988-06-09 | Rheinmetall Gmbh | Process for securing a shearing pin |
Non-Patent Citations (1)
| Title |
|---|
| BUDDE,Lothar, LAPPE,Wilhelm: Stanznieten ist zukuntträchtig in der Blechverarbeitung. In: Bänder, Bleche, Rohre 5-1991, S.94-100 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013945A1 (en) * | 1998-12-21 | 2000-06-28 | Kerb-Konus-Vertriebs-GmbH | Self-piercing rivet |
| DE29908928U1 (en) * | 1999-05-21 | 2000-10-05 | Eibes Kerb Konus Gmbh | Stamped embossed rivet |
| US6527490B1 (en) | 1999-05-21 | 2003-03-04 | Kerb-Konus-Vertriebs-Gmbh | Punching, stamping rivet |
| DE10259334C1 (en) * | 2002-12-18 | 2003-12-24 | Sfs Intec Holding Ag Heerbrugg | Punch rivet for a connection to sheets and method for setting such a punch rivet |
| DE10259369B3 (en) * | 2002-12-18 | 2004-05-06 | Sfs Intec Holding Ag | Device to set punch rivet in metal plates has upper sleeve with sliding die, lower stationary die to hold rivet shaft during setting, and enclosing tensioning sleeve to support metal plates |
| DE102005031916B4 (en) * | 2005-07-07 | 2008-09-11 | Böllhoff Verbindungstechnik GmbH | Semi-holed punch rivet for mechanical joining and method for producing a joint connection |
| DE102005031916A1 (en) * | 2005-07-07 | 2007-03-15 | Böllhoff Verbindungstechnik GmbH | Joining element for mechanical joining |
| CN102822538A (en) * | 2010-01-27 | 2012-12-12 | 托克斯印刷技术有限及两合公司 | Connection element and method for producing a connection element |
| CN102822538B (en) * | 2010-01-27 | 2015-02-11 | 托克斯印刷技术有限及两合公司 | Connection element and method for producing a connection element |
| US9062702B2 (en) | 2010-01-27 | 2015-06-23 | Tox Pressotechnik Gmbh & Co. Kg | Connecting element and method for manufacturing a connecting element |
| DE102012011020A1 (en) | 2012-06-05 | 2013-12-05 | Newfrey Llc | Punch rivet, rivet connection and riveting method |
| EP2671654A2 (en) | 2012-06-05 | 2013-12-11 | Newfrey LLC | Punch rivet, riveted joint and riveting method |
| CN106090102A (en) * | 2016-08-26 | 2016-11-09 | 常州市莱特气弹簧有限公司 | Safety air-leg |
| CN106090102B (en) * | 2016-08-26 | 2018-04-17 | 常州市莱特气弹簧有限公司 | Safety-type air-leg |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R207 | Utility model specification |
Effective date: 19970814 |
|
| R021 | Search request validly filed |
Effective date: 19971017 |
|
| R163 | Identified publications notified |
Effective date: 19971127 |
|
| R150 | Utility model maintained after payment of first maintenance fee after three years |
Effective date: 20001010 |
|
| R151 | Utility model maintained after payment of second maintenance fee after six years |
Effective date: 20030623 |
|
| R152 | Utility model maintained after payment of third maintenance fee after eight years |
Effective date: 20050610 |
|
| R071 | Expiry of right |