EP0726039B1 - Stud-member for snap fastener - Google Patents

Stud-member for snap fastener Download PDF

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Publication number
EP0726039B1
EP0726039B1 EP95111143A EP95111143A EP0726039B1 EP 0726039 B1 EP0726039 B1 EP 0726039B1 EP 95111143 A EP95111143 A EP 95111143A EP 95111143 A EP95111143 A EP 95111143A EP 0726039 B1 EP0726039 B1 EP 0726039B1
Authority
EP
European Patent Office
Prior art keywords
rivet
ball
shank
flange
parts
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
Application number
EP95111143A
Other languages
German (de)
French (fr)
Other versions
EP0726039A2 (en
EP0726039A3 (en
Inventor
Bernd Henzler
Thomas Pferdehirt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YKK Corp
Original Assignee
YKK Corp
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Filing date
Publication date
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Publication of EP0726039A2 publication Critical patent/EP0726039A2/en
Publication of EP0726039A3 publication Critical patent/EP0726039A3/en
Application granted granted Critical
Publication of EP0726039B1 publication Critical patent/EP0726039B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00Press-button or snap fasteners
    • A44B17/0064Details
    • A44B17/0088Details made from sheet metal
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00Press-button or snap fasteners
    • A44B17/0064Details
    • A44B17/007Stud-member
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B17/00Press-button or snap fasteners
    • A44B17/0064Details
    • A44B17/0094Details made from solid metal

Definitions

  • the invention relates to a reversible ball for snap fasteners of sheet material, consisting of one spherical part and one in each Ball part insertable plastic molding on both sides of the surface material, the spherical parts and the molded plastic parts are each identical and each plastic molded part has a flange for contact with the Underside of the ball part and a shaft for insertion into the ball part and the ball parts can be inserted into a rivet hole in the shafts Rivets can be connected to each other and to the surface material.
  • Reversible balls designed in this way for snap fasteners known with a plastic molded part inserted into the ball part.
  • Such Reversible balls are particularly suitable for attachment to waterproof Surface material used because the plastic molded part inserted into the ball part in the riveted state the passage of water through the Should prevent rivet connection. It happens with these known turning balls however, again and again that when riveting between the plastic molding and form cavities on the inside of the spherical part, so that despite Use of a water-impermeable surface material through the water Rivet connection from the outside in to the garment or the like can reach.
  • the invention has for its object to provide a turning ball for pushbuttons that is completely waterproof in the riveted state and beyond also holds the required stripping forces stand.
  • the outer surface of the shaft of each plastic molded part is substantially adapted to the inner shape of a spherical part, the shaft is extended out of the spherical part via the flange and the rivet is designed as a hollow rivet open at both ends .
  • a reversible ball designed according to this technical teaching has the advantage that the plastic molding due to its design adaptation to the Inner shape of the ball part inserted almost self-sealing into the ball part can be made without voids between the plastic molding and the Remain inside the sphere.
  • the sealing effect of the plastic molding is further increased by the fact that the hollow rivet is designed as open at its ends Rivet inside the spherical parts by flanging extending radially Rivet heads, which additionally counteracts the plastic molded parts press the inside surfaces of the balls.
  • the extension of the shaft of the plastic molded parts beyond the flange provides an additional seal between the surface material and the turning ball and on the other hand it provides a guide to start the rivet shaft when riveting the two spherical parts with the surface material
  • the rivet hole has of the shaft at its free end lying inside the spherical part recessed paragraph on which to accommodate the when riveting the ball parts resulting rivet head is used.
  • a circumferential groove extends on the free end. Based on these Material reduction in the area of the circumferential groove indicates the surface material end of the shaft facing some flexibility, which the overpressure described above is prevented.
  • a circumferential, bulge-like bulge is formed on the rivet shaft of the rivet.
  • This bulge formed from the wall material of the hollow rivet facilitates the formation of indentations and protuberances when riveting on both sides of the bulge, which on the one hand means that when riveting necessary length compensation is effected and on the other hand in the area of protrusions forming the plastic molded part additionally sealing is pressed against the inner surface of the ball.
  • the on both sides of the Bulging portions of the rivet shank are of different lengths.
  • a turning ball essentially of two ball parts 1, two Plastic molded parts 2, which are used in the spherical parts 1, and a rivet 3 for connecting the two with the plastic molded parts 2 Ball parts 1.
  • Fig. 1a to Fig. 1c is the assembly of a spherical part 1 with a plastic molded part 2 shown.
  • the ball part 1 consists of a flange 1a and a Ball head 1b, which for receiving in the (not shown) eyelet one Push button serves.
  • the plastic molding 2 shown in Fig. 1b which to form a watertight connection - as shown in Fig. 1c - Is inserted into the ball part 1, has a flange 2a, a shaft 2b and a rivet hole 2c for receiving the rivet 3.
  • a transverse surface 2d closing the rivet hole 2c is arranged in the rivet hole 2c.
  • the outer surface of the Shaft 2b essentially the inner shape of the spherical part 1 - in particular in Area of transition from flange 1a to ball head 1b - adapted. On in this way it becomes almost a self-sealing seal between the molded plastic part 2 and spherical part 1 ensures that there are no voids between form the plastic molded part 2 and the inside of the spherical part 1, through which water could pass through the riveted joint.
  • FIG. 2a to 2c show the connection of one with a plastic molded part 2 provided ball part 1 with a rivet 3.
  • the rivet 3 shown in Fig. 2a is designed as a hollow rivet open at both ends, which is approximately in the middle of the Rivet shaft 3a has a circumferential, bulge-like bulge 3b.
  • To the Riveting the rivet 3 with the ball part 1 rivets 3 into the rivet hole 2 of the molded plastic part 2 and then in the interior of the spherical part 1 pressed. In this riveting process, the rivet 3 pierces the transverse surface 2d and becomes so when it hits the inner surface of the ball head 1b flanged that a rivet head 3c forms.
  • the rivet hole 2c has at its free, in Inside the ball part 1 lying end a recessed paragraph 2e on.
  • the depth of this recessed paragraph 2e is dimensioned so that on the one hand the formation of the rivet head 3c by the material of the Shaft 2b is not hindered, but on the other hand enough shaft material in the area of the rivet head 3c it remains that the rivet head 3c which forms Shafts 2b sealingly presses against the inner surface of the ball head 1b.
  • Fig. 3 shows a turning ball shortly before riveting.
  • Surface material 4 for example a water-impermeable fabric
  • a ball part 1 with a plastic molded part 2 inserted therein is arranged, which are connected to each other and to the surface material 4 via the rivet 3 should be.
  • the free end of the rivet shaft 3a pressed against the sheet material 4 so that it presses into the rivet hole 2c and bears against the transverse surface 2d closing the rivet hole 2c.
  • the transverse surface 2d has the task of passing the surface material 2 through Press with the end of the rivet shaft 3a when piercing the sheet material 4 with the rivet shaft 3a to prevent it from sliding back.
  • Fig. 4 shows a reversible ball connected to a surface material.
  • the two spherical parts 1 with the plastic molded parts arranged therein 2 firmly and waterproof connected via the rivet 3.
  • the riveted State are formed in both ball heads 1b rivet heads 3c, on the one hand the watertight pressing of the molded plastic part 2 onto the inner surface ensure the spherical part 1 and on the other hand ensure that the Reversible ball withstands the pull-out forces required when loosening the Turning ball occur from the (not shown) eyelet of a push button.

Landscapes

  • Insertion Pins And Rivets (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Closures For Containers (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Connection Of Plates (AREA)

Abstract

The press stud consists of a ball part (1) and a moulded plastics part fitted into it, on either side of a fabric. Each plastics part has a contact flange (2a), and a shaft (2b) to fit into the ball part. The outer surface of each shaft is adapted to the inner contour of the ball part, and projects from it via the flange. The rivet connecting the ball parts is formed as a hollow rivet with two open ends. The rivet passes through rivet holes in the shafts, each of which has a shoulder for a rivet head (3c) formed during riveting.

Description

Gegenstand der Erfindung ist eine Wendekugel für Druckknöpfe zur Befestigung an Flächenmaterial, bestehend aus je einem Kugelteil und je einem in das Kugelteil einsetzbaren Kunststoff-Formteil auf beiden Seiten des Flächenmaterials, wobei die Kugelteile und die Kunststoff-Formteile jeweils identisch ausgebildet sind und jedes Kunststoff-Formteil einen Flansch zur Anlage an der Unterseite des Kugelteils sowie einen Schaft zum Einsetzen in das Kugelteil aufweist und die Kugelteile mittels eines in ein Nietloch der Schäfte einsetzbaren Nietes miteinander und mit dem Flächenmaterial verbindbar sind.The invention relates to a reversible ball for snap fasteners of sheet material, consisting of one spherical part and one in each Ball part insertable plastic molding on both sides of the surface material, the spherical parts and the molded plastic parts are each identical and each plastic molded part has a flange for contact with the Underside of the ball part and a shaft for insertion into the ball part and the ball parts can be inserted into a rivet hole in the shafts Rivets can be connected to each other and to the surface material.

Aus der Praxis sind solchermaßen ausgebildete Wendekugeln für Druckknöpfe mit einem in das Kugelteil eingesetzten Kunststoff-Formteil bekannt. Solche Wendekugeln werden insbesondere zur Befestigung an wasserundurchlässigem Flächenmaterial verwendet, da das in das Kugelteil eingesetzte Kunststoff-Formteil im vernieteten Zustand den Durchtritt von Wasser durch die Nietverbindung verhindern soll. Bei diesen bekannten Wendekugeln kommt es jedoch immer wieder vor, daß sich beim Vernieten zwischen dem Kunststoff-Formteil und der Innenseite des Kugelteils Hohlräume bilden, so daß trotz Verwendung eines wasserundurchlässigen Flächenmaterials Wasser durch die Nietverbindung von außen nach innen in das Kleidungsstück oder dergleichen gelangen kann.In practice, reversible balls designed in this way for snap fasteners known with a plastic molded part inserted into the ball part. Such Reversible balls are particularly suitable for attachment to waterproof Surface material used because the plastic molded part inserted into the ball part in the riveted state the passage of water through the Should prevent rivet connection. It happens with these known turning balls however, again and again that when riveting between the plastic molding and form cavities on the inside of the spherical part, so that despite Use of a water-impermeable surface material through the water Rivet connection from the outside in to the garment or the like can reach.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Wendekugel für Druckknöpfe zu schaffen, die im vernieteten Zustand absolut wasserdicht ist und darüber hinaus auch den benötigten Ausreißkräften Stand hält. On this basis, the invention has for its object to provide a turning ball for pushbuttons that is completely waterproof in the riveted state and beyond also holds the required stripping forces stand.

Als technische Lösung dieser Aufgabe wird vorgeschlagen, daß die Außenfläche des Schaftes eines jeden Kunststoff-Formteils im wesentlichen an die Innenform eines Kugelteils angepaßt ist, der Schaft aus dem Kugelteil heraus über den Flansch verlängert ist und der Niet als an beiden Enden offener Hohlniet ausgebildet ist.As a technical solution to this problem it is proposed that the outer surface of the shaft of each plastic molded part is substantially adapted to the inner shape of a spherical part, the shaft is extended out of the spherical part via the flange and the rivet is designed as a hollow rivet open at both ends .

Eine nach dieser technischen Lehre ausgebildete Wendekugel hat den Vorteil, daß das Kunststoff-Formteil aufgrund seiner gestalterischen Anpassung an die Innenform des Kugelteils nahezu selbstdichtend in das Kugelteil eingesetzt werden kann, ohne daß Hohlräume zwischen dem Kunststoff-Formteil und der Kugelinnenfläche verbleiben. Die Dichtwirkung des Kunststoff-Formteils wird noch dadurch erhöht, daß der als an seinen Enden offene Hohlniet ausgebildete Niet im Inneren der Kugelteile durch Umbördelung sich radial erstreckende Nietköpfe bildet, welche die Kunststoff-Formteile zusätzlich gegen die Kugelinnenflächen pressen.A reversible ball designed according to this technical teaching has the advantage that the plastic molding due to its design adaptation to the Inner shape of the ball part inserted almost self-sealing into the ball part can be made without voids between the plastic molding and the Remain inside the sphere. The sealing effect of the plastic molding is further increased by the fact that the hollow rivet is designed as open at its ends Rivet inside the spherical parts by flanging extending radially Rivet heads, which additionally counteracts the plastic molded parts press the inside surfaces of the balls.

Die Verlängerung des Schaftes der Kunststoff-Formteile über den Flansch hinaus besorgt einerseits eine zusätzliche Abdichtung zwischen dem Flächenmaterial und der Wendekugel und andererseits stellt sie eine Führung zum Ansetzen des Nietschaftes beim Vernieten der beiden Kugelteile mit dem Flächenmaterial dar. Vorzugsweise ist in dem Nietloch des Schaftes eines jeden Kunststoff-Formteils wenigstens eine das Nietloch verschließende Querfläche angeordnet, welche die Aufgaben hat, beim Vernieten der Kugelteile das Flächenmaterial durch Anpressen mit dem Nietschaftende am Zurückgleiten zu hindern und nach dem Durchstoßen als zusätzliche Dichtfläche zwischen dem Nietloch und dem Nietschaft zu dienen.The extension of the shaft of the plastic molded parts beyond the flange provides an additional seal between the surface material and the turning ball and on the other hand it provides a guide to start the rivet shaft when riveting the two spherical parts with the surface material Preferably, in the rivet hole of the shaft of each Plastic molding at least one transverse surface closing the rivet hole arranged, which has the task of riveting the spherical parts of the surface material by pressing with the end of the rivet to slide back prevent and after puncturing as an additional sealing surface between the To serve the rivet hole and the rivet shaft.

Gemäß einer bevorzugten Ausführungsform der Erfindung weist das Nietloch des Schaftes an seinem freien, im Inneren des Kugelteils liegenden Ende einen zurückspringenden Absatz auf, der zur Aufnahme des beim Vernieten der Kugelteile entstehenden Nietkopfes dient. Durch die Ausbildung des Absatzes wird gewährleistet, daß sich der Nietkopf ungehindert durch eine zu starke Anpressung an die Innenseite des Kunststoff-Formteils voll ausbilden kann, um so die benötigten Ausreißkräfte aufnehmen zu können, die beim Trennen einer Druckknopfverbindung auf die Wendekugel einwirken. Der Rücksprung des Absatzes ist dabei so bemessen, daß er die Ausbildung des Nietkopfes nicht verhindert, der Nietkopf jedoch das Kunststoff-Formteil abdichtend gegen die Kugelinnenfläche drückt.According to a preferred embodiment of the invention, the rivet hole has of the shaft at its free end lying inside the spherical part recessed paragraph on which to accommodate the when riveting the ball parts resulting rivet head is used. By training the sales it is ensured that the rivet head is unhindered by too strong Can fully form pressure on the inside of the plastic molding, in order to be able to absorb the required pull-out forces that occur during separation act on the reversing ball with a push-button connection. The return the paragraph is dimensioned so that he the formation of the rivet head not prevented, but the rivet head seals the plastic molding against the inner surface of the sphere presses.

Um eine Überpressung des Kunststoff-Formteils und eine eventuell daraus resultierende Verformung des Kugelteils beim Vernieten zu verhindern, weist der Schaft des Kunststoff-Formteils auf der Innenseite seines über den Flansch hinaus verlängerten freien Endes eine umlaufende Nut auf. Aufgrund dieser Materialverringerung im Bereich der umlaufenden Nut weist dieses dem Flächenmaterial zugewandte Ende des Schaftes eine gewisse Flexibilität auf, wodurch die oben beschriebene Überpressung verhindert wird.To overpress the plastic molded part and any resulting from it To prevent deformation of the ball part when riveting, the Shank of the molded plastic part on the inside of it over the flange in addition, a circumferential groove extends on the free end. Based on these Material reduction in the area of the circumferential groove indicates the surface material end of the shaft facing some flexibility, which the overpressure described above is prevented.

Gemäß einer vorteilhaften Ausgestaltung der erfindungsgemäßen Wendekugel ist am Nietschaft des Nietes eine umlaufende, wulstartige Auswölbung ausgebildet. Diese aus dem Wandmaterial des Hohlnietes ausgebildete Auswölbung erleichtert beim Vernieten die Ausbildung von Ein- und Ausstülpungen auf beiden Seiten der Auswölbung, wodurch einerseits der beim Vernieten notwendige Längenausgleich bewirkt wird und andererseits im Bereich der sich bildenden Ausstülpungen das Kunststoff-Formteil zusätzlich abdichtend gegen die Kugelinnenfläche gepreßt wird.According to an advantageous embodiment of the reversible ball according to the invention a circumferential, bulge-like bulge is formed on the rivet shaft of the rivet. This bulge formed from the wall material of the hollow rivet facilitates the formation of indentations and protuberances when riveting on both sides of the bulge, which on the one hand means that when riveting necessary length compensation is effected and on the other hand in the area of protrusions forming the plastic molded part additionally sealing is pressed against the inner surface of the ball.

Um unnötige Materialverformungen bei der Montage des Nietes mit bereits montierten Kugelteilen zu vermeiden ist es vorteilhaft, daß die beidseitig der Auswölbung liegenden Teilstücke des Nietschaftes unterschiedlich lang sind.To avoid unnecessary material deformation when assembling the rivet To avoid assembled ball parts, it is advantageous that the on both sides of the Bulging portions of the rivet shank are of different lengths.

Weitere Einzelheiten und Vorteile ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnungen, in denen eine bevorzugte Ausführungsform einer erfindungsgemäß ausgebildeten Wendekugel für Druckknöpfe dargestellt ist. In den Zeichnungen zeigen:

Fig. 1a
eine teilweise geschnittene Seitenansicht eines Kugelteils;
Fig. 1b
eine teilweise geschnittene Seitenansicht eines Kunststoff-Formteils;
Fig. 1c
eine teilweise geschnittene Seitenansicht des Kugelteils gemäß Fig. 1a mit darin eingesetztem Kunststoff-Formteil gemäß Fig. 1b;
Fig. 2a
eine teilweise geschnittene Seitenansicht eines Nietes;
Fig. 2b
eine teilweise geschnittene Seitenansicht eines Kugelteils mit eingesetztem Kunststoff-Formteil;
Fig. 2c
eine teilweise geschnittene Seitenansicht eines Kugelteils mit eingesetztem Kunststoff-Formteil sowie einem darin festgelegten Niet;
Fig. 3
eine teilweise geschnittene Seitenansicht einer Wendekugel vor dem Vernieten der beiden Kugelteile miteinander und mit einem Flächenmaterial und
Fig. 4
eine teilweise geschnittene Seitenansicht einer an einem Flächenmaterial befestigten Wendekugel im vernieteten Zustand.
Further details and advantages result from the following description of the associated drawings, in which a preferred embodiment of a reversible ball designed according to the invention for push buttons is shown. The drawings show:
Fig. 1a
a partially sectioned side view of a spherical part;
Fig. 1b
a partially sectioned side view of a plastic molding;
Fig. 1c
a partially sectioned side view of the spherical part according to FIG. 1a with the plastic molded part inserted therein according to FIG. 1b;
Fig. 2a
a partially sectioned side view of a rivet;
Fig. 2b
a partially sectioned side view of a spherical part with an inserted plastic molding;
Fig. 2c
a partially sectioned side view of a spherical part with an inserted plastic molded part and a rivet fixed therein;
Fig. 3
a partially sectioned side view of a reversible ball before riveting the two ball parts together and with a surface material and
Fig. 4
a partially sectioned side view of a reversible ball attached to a surface material in the riveted state.

In den Abbildungen Fig. 1a bis Fig. 1c und Fig. 2a bis Fig. 2c ist die Montage der eine Wendekugel bildenden Einzelteile dargestellt. Wie aus Fig. 3 ersichtlich, besteht eine Wendekugel im wesentlichen aus zwei Kugelteilen 1, zwei Kunststoff-Formteilen 2, welche in die Kugelteile 1 eingesetzt werden, sowie einem Niet 3 zum Verbinden der beiden mit den Kunststoff-Formteilen 2 versehenen Kugelteile 1.The assembly is shown in FIGS. 1a to 1c and 2a to 2c of the individual parts forming a turning ball. 3, there is a turning ball essentially of two ball parts 1, two Plastic molded parts 2, which are used in the spherical parts 1, and a rivet 3 for connecting the two with the plastic molded parts 2 Ball parts 1.

In Fig. 1a bis Fig. 1c ist die Montage eines Kugelteiles 1 mit einem Kunststoff-Formteil 2 dargestellt. Das Kugelteil 1 besteht aus einem Flansch 1a sowie einem Kugelkopf 1b, welcher zur Aufnahme in der (nicht dargestellten) Öse eines Druckknopfes dient. Das in Fig. 1b dargestellte Kunststoff-Formteil 2, welches zur Bildung einer wasserdichten Verbindung - wie in Fig. 1c dargestellt - in das Kugelteil 1 eingesetzt wird, weist einen Flansch 2a, einen Schaft 2b sowie ein Nietloch 2c zur Aufnahme des Nietes 3 auf. In dem Nietloch 2c ist eine das Nietloch 2c verschließende Querfläche 2d angeordnet. im mit dem Kugelteil 1 verbundenen Zustand liegt der Flansch 2a des Kunststoff-Formteils 2 am Flansch 1a des Kugelteils 1 an, während der Schaft 2b in das Innere des Kugelkopfes 1b hineinragt. Wie aus Fig. 1c ersichtlich, ist die Außenfläche des Schaftes 2b im wesentlichen der Innenform des Kugelteils 1 - insbesondere im Bereich des Übergangs vom Flansch 1a zum Kugelkopf 1b - angepaßt. Auf diese Weise wird nahezu eine selbstdichtende Abdichtung zwischen Kunststoff-Formteil 2 und Kugelteil 1 gewährleistet, da sich keine Hohlräume zwischen dem Kunststoff-Formteil 2 und der Innenseite des Kugelteils 1 bilden, durch die Wasser durch die Nietverbindung hindurchtreten könnte.In Fig. 1a to Fig. 1c is the assembly of a spherical part 1 with a plastic molded part 2 shown. The ball part 1 consists of a flange 1a and a Ball head 1b, which for receiving in the (not shown) eyelet one Push button serves. The plastic molding 2 shown in Fig. 1b, which to form a watertight connection - as shown in Fig. 1c - Is inserted into the ball part 1, has a flange 2a, a shaft 2b and a rivet hole 2c for receiving the rivet 3. In the rivet hole 2c a transverse surface 2d closing the rivet hole 2c is arranged. im with the Ball part 1 connected state, the flange 2a of the plastic molded part 2 on the flange 1a of the ball part 1, while the shaft 2b in the interior of the Ball head 1b protrudes. As can be seen from Fig. 1c, the outer surface of the Shaft 2b essentially the inner shape of the spherical part 1 - in particular in Area of transition from flange 1a to ball head 1b - adapted. On in this way it becomes almost a self-sealing seal between the molded plastic part 2 and spherical part 1 ensures that there are no voids between form the plastic molded part 2 and the inside of the spherical part 1, through which water could pass through the riveted joint.

Fig. 2a bis Fig. 2c zeigen die Verbindung eines mit einem Kunststoff-Formteil 2 versehenen Kugelteils 1 mit einem Niet 3. Der in Fig. 2a dargestellte Niet 3 ist als an beiden Enden offener Hohlniet ausgebildet, der etwa in der Mitte des Nietschaftes 3a eine umlaufende, wulstartige Auswölbung 3b aufweist. Zum Vernieten des Nietes 3 mit dem Kugelteil 1 wird der Niet 3 in das Nietloch 2 des Kunststoff-Formteils 2 eingesetzt und anschließend in das Innere des Kugelteils 1 gepreßt. Bei diesem Vernietvorgang durchstößt der Niet 3 die Querfläche 2d und wird beim Auftreffen auf die Innenfläche des Kugelkopfes 1b so umgebördelt, daß sich ein Nietkopf 3c ausbildet.2a to 2c show the connection of one with a plastic molded part 2 provided ball part 1 with a rivet 3. The rivet 3 shown in Fig. 2a is designed as a hollow rivet open at both ends, which is approximately in the middle of the Rivet shaft 3a has a circumferential, bulge-like bulge 3b. To the Riveting the rivet 3 with the ball part 1 rivets 3 into the rivet hole 2 of the molded plastic part 2 and then in the interior of the spherical part 1 pressed. In this riveting process, the rivet 3 pierces the transverse surface 2d and becomes so when it hits the inner surface of the ball head 1b flanged that a rivet head 3c forms.

Zur Aufnahme des Nietkopfes 3c weist das Nietloch 2c an seinem freien, im Inneren des Kugelteiles 1 liegenden Ende einen zurückspringenden Absatz 2e auf. Die Tiefe dieses zurückspringenden Absatzes 2e ist dabei so bemessen, daß einerseits die Ausbildung des Nietkopfes 3c durch das Material des Schaftes 2b nicht behindert wird, andererseits aber genügend Schaftmaterial im Bereich des Nietkopfes 3c verbleibt, daß der sich bildende Nietkopf 3c den Schaft 2b abdichtend gegen die Innenfläche des Kugelkopfes 1b preßt.To accommodate the rivet head 3c, the rivet hole 2c has at its free, in Inside the ball part 1 lying end a recessed paragraph 2e on. The depth of this recessed paragraph 2e is dimensioned so that on the one hand the formation of the rivet head 3c by the material of the Shaft 2b is not hindered, but on the other hand enough shaft material in the area of the rivet head 3c it remains that the rivet head 3c which forms Shafts 2b sealingly presses against the inner surface of the ball head 1b.

Fig. 3 zeigt eine Wendekugel kurz vor dem Vernieten. Auf beiden Seiten eines Flächenmaterials 4, beispielsweise einem wasserundurchlässigen Gewebe, sind je ein Kugelteil 1 mit darin eingesetztem Kunststoff-Formteil 2 angeordnet, welche über den Niet 3 miteinander und mit dem Flächenmaterial 4 verbunden werden sollen.Fig. 3 shows a turning ball shortly before riveting. One on both sides Surface material 4, for example a water-impermeable fabric, a ball part 1 with a plastic molded part 2 inserted therein is arranged, which are connected to each other and to the surface material 4 via the rivet 3 should be.

Zum Vernieten der beiden Kugelteile 1 wird das freie Ende des Nietschaftes 3a gegen das Flächenmaterial 4 gepreßt, so daß dieses in das Nietloch 2c hereingedrückt wird und an der das Nietloch 2c verschließenden Querfläche 2d anliegt. Die Querfläche 2d hat hierbei die Aufgabe, das Flächenmaterial 2 durch Anpressen mit dem Ende des Nietschaftes 3a beim Durchstoßen des Flächenmaterials 4 mit dem Nietschaft 3a am Zurückgleiten zu hindern. To rivet the two spherical parts 1, the free end of the rivet shaft 3a pressed against the sheet material 4 so that it presses into the rivet hole 2c and bears against the transverse surface 2d closing the rivet hole 2c. The transverse surface 2d has the task of passing the surface material 2 through Press with the end of the rivet shaft 3a when piercing the sheet material 4 with the rivet shaft 3a to prevent it from sliding back.

Um eine Überpressung des Kunststoff-Formteils 2 im Bereich des Übergangs vom Flansch 2a zum Schaft 2b zu verhindern, was möglicherweise zu einer Verformung des Kugelkopfes 1b und somit zur Unbrauchbarkeit der Wendekugel führen könnte, weist das aus dem Kugelteil 1 heraus über den Flansch 2a verlängerte Teil des Schaftes 2b an seinem freien Ende eine umlaufende Nut 2f auf. Durch diese Materialverringerung im Übergangsbereich zwischen Flansch 2a und Schaft 2b ist dieser Bereich in einem gewissen Maße flexibel ausgestaltet, so daß der beim Vernieten auf diesen Teil ausgeübte Druck lediglich zu einer Verformung des Kunststoff-Formteils 2, jedoch aber nicht zu einer Verformung des Kugelteiles 1 führt.To overpress the plastic molded part 2 in the area of the transition prevent from flange 2a to shaft 2b, possibly leading to a Deformation of the ball head 1b and thus to the unusability of the turning ball could lead out of the ball part 1 through the flange 2a extended part of the shaft 2b at its free end a circumferential groove 2f on. This material reduction in the transition area between Flange 2a and shaft 2b, this area is flexible to a certain extent designed so that the pressure exerted on this part when riveting only to a deformation of the plastic molded part 2, but not to deformation of the ball part 1 leads.

Fig. 4 zeigt eine fertig mit einem Flächenmaterial verbundene Wendekugel. Hierbei sind die beiden Kugelteile 1 mit den darin angeordneten Kunststoff-Formteilen 2 fest und wasserdicht über den Niet 3 verbunden. Im vernieteten Zustand sind in beiden Kugelköpfen 1b Nietköpfe 3c ausgebildet, die einerseits die wasserdichte Anpressung des Kunststoff-Formteils 2 an die Innenfläche des Kugelteils 1 gewährleisten und andererseits sicherstellen, daß die Wendekugel den benötigten Ausreißkräften standhält, die beim Lösen der Wendekugel aus der (nicht dargestellten) Öse eines Druckknopfes auftreten.Fig. 4 shows a reversible ball connected to a surface material. Here, the two spherical parts 1 with the plastic molded parts arranged therein 2 firmly and waterproof connected via the rivet 3. In the riveted State are formed in both ball heads 1b rivet heads 3c, on the one hand the watertight pressing of the molded plastic part 2 onto the inner surface ensure the spherical part 1 and on the other hand ensure that the Reversible ball withstands the pull-out forces required when loosening the Turning ball occur from the (not shown) eyelet of a push button.

Neben der Ausbildung der Nietköpfe 3c tragen auch die Ausbildung von Einund Ausstülpungen im Bereich der Auswölbung 3b zur Erhöhung des Anpreßdruckes zwischen Kunststoff-Formteil 2 und Kugelteil 1 bei.In addition to the formation of the rivet heads 3c, the formation of Einund and carry Protuberances in the area of the bulge 3b to increase the contact pressure between plastic molded part 2 and ball part 1 at.

Da bei einer solchermaßen ausgebildeten Wendekugel keinerlei Hohlräume zwischen Kunststoff-Formteil 2 und Kugelteil 1 verbleiben, ist die Wasserundurchlässigkeit dieser Verbindung sichergestellt. Ebenso kann diese Wendekugel die benötigten Ausreißkräfte problemlos aufnehmen, da der Niet 3 in beiden Kugelteilen 1 unter Ausbildung von Nietköpfen 3c sicher festgelegt ist. Since there are no cavities in a reversible ball designed in this way remain between the plastic molded part 2 and ball part 1, the water impermeability this connection ensured. Likewise, this reversible ball easily absorb the required pull-out forces because the rivet 3 in both Ball parts 1 is securely set with the formation of rivet heads 3c.

BezugszeichenlisteReference list

11
KugelteilBall part
1a1a
Flanschflange
1b1b
KugelkopfBall head
22nd
Kunststoff-FormteilPlastic molding
2a2a
Flanschflange
2b2 B
Schaftshaft
2c2c
NietlochRivet hole
2d2d
QuerflächeTransverse surface
2e2e
Absatzparagraph
2f2f
NutGroove
33rd
Nietrivet
3a3a
NietschaftRiveting
3b3b
AuswölbungBulge
3c3c
NietkopfRivet head
44th
FlächenmaterialSurface material

Claims (6)

  1. Turning ball for press fasteners for fastening on a sheet-like material, comprising in each case one ball part (1) and in each case one plastic moulding (2), which can be inserted into the ball part (1), on both sides of the sheet-like material (4), it being the case that the ball parts (1) and the plastic mouldings (2) are designed identically in each case, and each plastic moulding (2) has a flange (2a), for butting against the underside of the ball part (1), and a shank (2b), for insertion into the ball part (1), and the ball parts (1) can be connected to one another, and to the sheet-like material (4), by means of a rivet (3) which can be inserted into a rivet hole (2c) of the shanks (2b), characterized in that the outer surface of the shank (2b) of each plastic moulding (2) is essentially adapted to the inner shape of a ball part (1), the shank (2b) is extended out of the ball part (1) beyond the flange (2a), and the rivet (3) is designed as a hollow rivet which is open at both ends.
  2. Turning ball according to Claim 1, characterized in that at least one transverse surface (2d) is arranged in the rivet hole (2c) of the shank (2b), the transverse surface closing off the rivet hole.
  3. Turning ball according to Claim 1 or 2,
    characterized in that at its free end, located in the interior of the ball part (1), the rivet hole (2c) of the shank (2b) has a set-back shoulder (2e) for accommodating a rivet head (3c) which is produced when the ball parts are riveted.
  4. Turning ball according to at least one of Claims 1 to 3, characterized in that on the inside of its free end, which is extended beyond the flange (2a), the shank (2b) has an encircling groove (2f).
  5. Turning ball according to Claim 1, characterized in that an encircling, bead-like convexity (3b) is formed on the shank (3a) of the rivet (3).
  6. Turning ball according to Claim 5, characterized in that those portions of the rivet shank (3a) which are located on both sides of the convexity (3b) are designed to be of different lengths.
EP95111143A 1995-02-09 1995-07-14 Stud-member for snap fastener Expired - Lifetime EP0726039B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502090U 1995-02-09
DE29502090U DE29502090U1 (en) 1995-02-09 1995-02-09 Reversible ball for snaps

Publications (3)

Publication Number Publication Date
EP0726039A2 EP0726039A2 (en) 1996-08-14
EP0726039A3 EP0726039A3 (en) 1997-02-05
EP0726039B1 true EP0726039B1 (en) 2001-11-07

Family

ID=8003648

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111143A Expired - Lifetime EP0726039B1 (en) 1995-02-09 1995-07-14 Stud-member for snap fastener

Country Status (3)

Country Link
EP (1) EP0726039B1 (en)
AT (1) ATE208149T1 (en)
DE (2) DE29502090U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824943A1 (en) * 1998-06-04 1999-12-09 Prym William Gmbh & Co Kg Push button

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4662033A (en) * 1985-07-12 1987-05-05 Trw Inc. Tack button assembly
DE8915362U1 (en) * 1989-06-06 1990-04-26 William Prym-Werke GmbH & Co KG, 5190 Stolberg Snap fastener connection
DE4016077A1 (en) * 1989-06-06 1990-12-13 Prym Werke William Press stud button - includes sealing material to prevent water and weather penetration in sports-wear
DE3918375A1 (en) * 1989-06-06 1990-12-13 Prym Werke William PUSH BUTTON CONNECTION
DE4022524A1 (en) * 1989-08-29 1991-03-07 Prym Werke William Press button clothing fastener - has hollow rivet forming core on piercing elastic seal over mounting half
DE69128281T2 (en) * 1991-08-01 1998-06-18 Riccardo Candotti Knob with integrated seal
DE9210233U1 (en) * 1992-07-30 1993-12-02 W.L. Gore & Associates Gmbh, 85640 Putzbrunn Waterproof garment

Also Published As

Publication number Publication date
EP0726039A2 (en) 1996-08-14
DE29502090U1 (en) 1995-04-27
DE59509811D1 (en) 2001-12-13
EP0726039A3 (en) 1997-02-05
ATE208149T1 (en) 2001-11-15

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