EP0110107B1 - Fastening device for a watch strap, especially a link strap - Google Patents

Fastening device for a watch strap, especially a link strap Download PDF

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Publication number
EP0110107B1
EP0110107B1 EP83110523A EP83110523A EP0110107B1 EP 0110107 B1 EP0110107 B1 EP 0110107B1 EP 83110523 A EP83110523 A EP 83110523A EP 83110523 A EP83110523 A EP 83110523A EP 0110107 B1 EP0110107 B1 EP 0110107B1
Authority
EP
European Patent Office
Prior art keywords
fastening device
watch strap
extension
plate
cut
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
Application number
EP83110523A
Other languages
German (de)
French (fr)
Other versions
EP0110107A1 (en
Inventor
Dieter Nischwitz
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.)
Rodi and Wienenberger AG
Original Assignee
Rodi and Wienenberger AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19828232954 external-priority patent/DE8232954U1/en
Priority claimed from DE19828233252 external-priority patent/DE8233252U1/en
Priority claimed from DE19838300986 external-priority patent/DE8300986U1/en
Application filed by Rodi and Wienenberger AG filed Critical Rodi and Wienenberger AG
Publication of EP0110107A1 publication Critical patent/EP0110107A1/en
Application granted granted Critical
Publication of EP0110107B1 publication Critical patent/EP0110107B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/20—Fasteners for straps, chains or the like for open straps, chains or the like
    • A44C5/2057—Fasteners locked by sliding or rotating of the male element of the fastener; Turn-button fasteners
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/21—Strap tighteners
    • Y10T24/2143—Strap-attached folding lever
    • Y10T24/2155—Jewelry-watch straps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/40—Buckles
    • Y10T24/4002—Harness
    • Y10T24/4021—Cross bails
    • Y10T24/4026—Rigid stud
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/47—Strap-end-attaching devices
    • Y10T24/4782—Watch strap

Definitions

  • the invention relates to a watch band with a closure, which is designed so that the closure part at one end of the watch band has a cutout and the closure part at the other end of the watch band has an extension which fits into the cutout so that it is in its plane cannot be twisted and / or moved.
  • a watch band with a closure is known (GB-A-2 087 471 in which the closure part has a tongue at one end of the watch band, which is hooked from above into a recess made in the closure part at the other end of the watch band and by moving it horizontally below
  • the closure is closed with a lid which is articulated on the closure part to be hooked in and which latches with a nose on the inside of the recess in the other closure part.
  • a disadvantage of this closure is the design of the receiving closure part, which, with its numerous walls and projections and the slot for fastening the watch band or the openings at the end of the closure part and under the stepped walls for the passage of the watch band, is technically complex and costly.
  • the closure is relatively flat and adapts its width essentially to the course of the watch band, but is still about twice as thick as the watch band and, as a separately inserted part, does not form an element that is fully integrated into the watch band.
  • the clasp has been specially developed for braided watch straps, the halves of which are attached to the closure parts e.g. be soldered on or fastened with screws from below, since it is assumed that a fastener fastened with hinges and pins to the watch band halves is several times thicker than the watch band.
  • hinge connections in watch straps in which the hinge tubes are soldered is generally known. With the small dimensions, which are becoming increasingly extreme with today's super-flat watch straps, this process is problematic because it requires the most careful work. Despite all care, an expensive post-treatment is required in most cases. Due to the high temperatures that occur during soldering, the metal in the vicinity of the solder joint can become discolored. This is also a particular problem with watch straps that have a rolled gold double layer on the top, which due to its better quality and wearing properties compared to a galvanically applied gold layer is often used for watch bands. After-treatment is naturally particularly expensive here.
  • the invention aims to eliminate the above-mentioned shortcomings with regard to a two-part closure and the hinge tube fastening.
  • the invention solves the problem of creating a watch strap, the closure of which consists of a few, simply constructed and inexpensive to manufacture construction elements which are easy to assemble.
  • the clasp should fit inconspicuously and harmoniously into today's preferred super-flat watch straps and be easy to open and close without tools.
  • the attachment of hinge tubes is shown, which is advantageous and easy to use even with extremely small dimensions.
  • the advantages of the invention are essentially to be seen in the fact that, due to the exact fit of the fastener parts embodied in the thickness of the watch strap, the closure is extremely flat and its outer design fits like a link in the watch strap. Only the thin plate used to fix the clasp protrudes beyond the level of the watch strap / clasp. The even thinner delimiting plate lying on the underside of the closure part extension is not visible at all when the watch strap is folded over and plays no role as far as the thickness of the closure is concerned.
  • the two parts of the fastener to be connected are laid into one another over a relatively large area, and no narrow gaps make the hanging difficult.
  • the method of attaching the hinge tubes by laser welding is extremely advantageous since the focal spot of the laser beam is extremely small, and.
  • the welding spot can be precisely positioned even with small dimensions of the hinge tubes.
  • the energy can be varied over a wide range as required, can be precisely metered and concentrated on the point to be welded, so that the risk of Overheating of neighboring areas is switched off.
  • the hinge tubes are securely and securely attached, even on watch bands with rolled gold plating, and withstand the stresses of wearing the watch band.
  • the watch band according to the invention consists of two band halves 1, 2 with a series of links 3 and a closure part 4 and 5, respectively, on the band halves 1 and 2, which are connected to one another by means of a hinge connection.
  • Links 3 and closure parts 4.5 are provided on their underside with recesses 6 which correspond to the outer radius of the hinge tubes 7 and in which the hinge tubes 7 are fastened. Pins 8 are pushed through the hinge tubes 7 to connect the links 3 and closure parts 4, 5 to one another.
  • the closure of the watch band according to the invention consists of two closure parts 4 and 5, which are each attached to the ends of the halves 1 and 2 of the watch band.
  • the closure part 4 at the band end 1 is provided with a cutout 9, which in the embodiment according to Fig. 1 has the shape of a hammer head.
  • the other closure part 5 has an extension 10, which corresponds to the hammer head shape of the cutout 9.
  • the hammer-head-shaped extension 10 is hung into the cutout 9 from below.
  • the tabs 11, 11 'at the exit of the cutout 9 form a lock for the hammer-head-shaped extension 10 located therein, so that it cannot be moved in its plane.
  • the closure part extension 10 has an opening 12 in which a shaft 13 is mounted, on the underside of which a preferably round plate 14 is fastened.
  • This plate 14 limits the way downward when the closure part 4 provided with the cutout 9 is hung in. Both closure parts 4 and 5 are therefore in one plane.
  • a plate 15 which essentially corresponds to the hammer head shape of the closure part extension 10. This plate 15 serves to fix the closure. If the plate 15 is rotated by 90 °, it covers the tabs 11, 11 'on one side and on the other side protrudes beyond the hammer-head-shaped cutout 9 with the closure part extension 10 located therein, so that the closure part 4 no longer lifts off can be.
  • the shaft 13 has a transverse bore 16 which carries resilient locking elements, e.g. a coil spring 17, at the two ends of which metal balls 18, 18 'are seated, which engage in grooves 19 of the opening 12 in the hammer-head-shaped closure part extension 10 and fix the plate 15 when rotating in the closed position parallel to the hammer-head-shaped closure part extension 10 and in the lock-locking position at right angles thereto (Fig. 2).
  • resilient locking elements e.g. a coil spring 17
  • metal balls 18, 18 'are seated which engage in grooves 19 of the opening 12 in the hammer-head-shaped closure part extension 10 and fix the plate 15 when rotating in the closed position parallel to the hammer-head-shaped closure part extension 10 and in the lock-locking position at right angles thereto (Fig. 2).
  • the plate 15 25, 40
  • the cutout 21 is formed in the one closure part 22 in the manner of a rod provided with teeth on both sides.
  • the corresponding rack-shaped extension 23 on the closure part 24 can be hung in different positions in the cutout 21. This results in a certain length adjustability for the watch strap.
  • the mechanism for fixing the closure can be designed in the same way as described above, that is to say with an overlying plate mounted on a shaft which, when rotated through 90 °, lies transversely over the rack-shaped closure part extension 23 located in the cutout 21 of the closure part 22 and protrudes beyond with their ends, so that the closure part 22 with cutout 21, which rests below on a, as described above, attached to the lower end of the shaft limiting plate can no longer be lifted (Fig. 4).
  • a plate 25 which can be displaced in the longitudinal direction is attached to the rack-like closure part extension 23.
  • the plate 25 corresponds to the rack shape of the closure part extension 23. If it is shifted by half a tooth repeat in one direction or the other, it covers the interlocking teeth of cutout 21 and extension 23, and the closure part 22 can no longer be lifted off.
  • the mechanism for fixing the plate 25 in the positions aligned with the teeth and shifted by half a tooth repeat is designed so that the shaft 26, on which the plate 25 is attached, has a rectangular cross-section and can be displaced in the slot-shaped opening 27 here is (Fig. 5).
  • the shaft 26 has a transverse bore 28 through which a helical spring 29 is placed, at the ends of which there are metal balls 30, 30 '.
  • a helical spring 29 is placed, at the ends of which there are metal balls 30, 30 '.
  • Emblems 32 can be attached to the top plate 15, 25, 40.
  • the closure part 33 is provided with a cutout 34 which is designed in the manner of a square which is rotated by 45 ° to the axes of the watch band.
  • the other closure part 35 has an extension 36 which corresponds to the square shape of the cutout 34.
  • the closure part extension 36 has a round opening 37 in which a shaft 38 is mounted, on the underside of which a preferably round plate 39 is fastened, while at the upper end of the shaft 38 a rotatable plate 40 is attached to the square shape of the closure part extension 35.
  • the shaft 38 has a transverse bore 41 which carries resilient locking elements, e.g. a coil spring 42, at the ends of which metal balls 43, 43 'are seated.
  • the opening 37 is provided with grooves 44.
  • the closure part 35 is hooked into the closure part 33 from below.
  • the rotatable plate 40 is parallel to the closure part extension 36.
  • the closure part extension 36 fits exactly into the cutout 34, the flanks 45, 45 'of which form the boundary in the horizontal direction.
  • the round plate 39 limits the path of the closure part 33 downward, so that both closure parts 33 and 35 lie in one plane.
  • the flat top plate 40 which protrudes only slightly beyond the closure height, is rotated by 45 ° for locking.
  • the corners of the plate 40 cover the sides of the cutout 34 with the closure part extension 36 located therein, so that the closure part 33 can no longer be lifted off.
  • the metal balls 43, 43 'located at the ends of the helical spring 42 snap into the grooves 44 provided in the opening 37 during rotation and fix the top plate 40 in the respectively desired position parallel to the square-shaped closure part extension 36 and rotated by 45 ° thereto.
  • the flanks 46 on the underside of the top plate 40 are in turn beveled.
  • FIGs 10-12 illustrate how the links 3 and the fastener parts (e.g. 33) are interconnected and how the hinge tubes 7 used for the hinge connection are attached to the links 3 and to the fastener part 33, respectively.
  • the rear wall 47 of the hinge tubes 7 is welded to the member 3 or closure part 33 on its contact surface in the recess 6.
  • a laser beam 48 is shot obliquely into the openings of the hinge tubes 7 at both ends. Since the welding spot49 is extremely small, several welding spots can be placed side by side to increase durability.
  • the hinge tubes 7, which are fastened to the link 3 in FIG. 12, have 50 holes 51 on their front wall, which the laser beam 48, which was shot perpendicularly from the outside onto the hinge tubes 7, burned out.
  • the rear wall 47 of the hinge tubes 7 is, as described above, welded in the weld spots 49 in the recesses 6 on the link 5 or closure part 33.

Description

Die Erfindung bezieht sich auf ein Uhrband mit einem Ver-schluß, der so ausgebildet ist, daß der Verschlußteil an dem einen Uhrbandende einen Ausschnitt und der Verschlußteil an dem anderen Uhrbandende einen Fortsatz aufweist, der in den Ausschnitt paßt, so daß er in seiner Ebene nicht verdreht und/oder verschoben werden kann.The invention relates to a watch band with a closure, which is designed so that the closure part at one end of the watch band has a cutout and the closure part at the other end of the watch band has an extension which fits into the cutout so that it is in its plane cannot be twisted and / or moved.

Es ist ein Uhrband mit einem Verschluß bekannt (GB-A-2 087 471 bei dem der Verschlußteil an dem einen Uhrbandende eine Zunge aufweist, die von oben her in eine im Verschlußteil am anderen Uhrbandende eingebrachte Ausnehmung eingehängt wird und durch Verschieben in horizontaler Richtung unter deren gestufte Wände gleitet, die einen Teil der Ausnehmung überdecken. Der Verschluß wird mit einem an dem einzuhängenden Verschlußteil angelenkten Deckel verschlossen, der mit einer Nase an der Innenseite der Ausnehmung im anderen Verschlußteil verrastet.A watch band with a closure is known (GB-A-2 087 471 in which the closure part has a tongue at one end of the watch band, which is hooked from above into a recess made in the closure part at the other end of the watch band and by moving it horizontally below The closure is closed with a lid which is articulated on the closure part to be hooked in and which latches with a nose on the inside of the recess in the other closure part.

Nachteilig bei diesem Verschluß ist die Gestaltung des aufnehmenden Verschlußteils, das mit seinen zahlreichen Wänden und Vorsprüngen sowie dem Schlitz zur Befestigung des Uhrbandes bzw. den Öffnungen am Verschlußteilende und unter den gestuften Wänden für den Durchtritt des Uhrbandes fertigungstechnisch aufwendig und kostspielig ist. Der Verschluß ist zwar relativ flach und paßt sich in der Breite dem Verlauf des Uhrbandes im wesentlichen an, ist aber immer noch etwa doppelt so dick wie das Uhrband und bildet als separat eingesetztes Teil kein voll in das Uhrband integriertes Element. Der Verschluß ist speziell für Geflechtsuhrbänder entwickelt, deren Uhrbandhälften an die Verschlußteile z.B. angelötet oder mit Schrauben von unten her befeetigt werden, da davon ausgegangen wird, daß ein mit Scharnieren und Stiftenan die Uhrbandhälften montierter Verschluß mehrfach dicker ist als das Uhrband.A disadvantage of this closure is the design of the receiving closure part, which, with its numerous walls and projections and the slot for fastening the watch band or the openings at the end of the closure part and under the stepped walls for the passage of the watch band, is technically complex and costly. The closure is relatively flat and adapts its width essentially to the course of the watch band, but is still about twice as thick as the watch band and, as a separately inserted part, does not form an element that is fully integrated into the watch band. The clasp has been specially developed for braided watch straps, the halves of which are attached to the closure parts e.g. be soldered on or fastened with screws from below, since it is assumed that a fastener fastened with hinges and pins to the watch band halves is several times thicker than the watch band.

Aus den schweizerischen patentschriften CH-A-563 742 und CH-A-563 743 sind Uhrbänder mit Verschlüssen bekannt, bei denen der eine Verschlußteil einen hakenartigen Fortsatz aufweist, der durch eine Spalte im anderen Verschlußteil durchgeführt und in einen Schlitz eingehängt wird. Ein mit einem halbkreisförmigen plättchen bzw. einer Nase versehener drehbarer Bolzen ist im Innern des aufnehmenden Verschluß-teils angebracht. Durch Drehen des Bolzens schiebt sich das plättchen bzw. die Nase über den hakenartigen Fortsatz und sichert diesen gegen Herausfallen.From the Swiss patent specifications CH-A-563 742 and CH-A-563 743, watch straps with closures are known, in which one closure part has a hook-like extension which is passed through a column in the other closure part and is hung in a slot. A rotatable bolt provided with a semicircular plate or nose is fitted inside the receiving closure part. By turning the bolt, the plate or nose pushes over the hook-like extension and secures it against falling out.

Bei diesen Verschlußkonstruktionen ist das Einhängen des Fortsatzes an dem einen Verschlußteil in den aufnehmenden Verschlußteil besonders bei umgelegtem Uhrband mühsam, weil der hakenartige Fortsatz durch einen schmalen Spalt mit relativ wenig Spiel durchgeführt werden muß. Um die Verriegelung dieser Verschlüsse zu öffnen bzw. zu schließen ist ausserdem ein Hilfsmittel erforderlich, z.B. eine Münze oder Ähnliches. Darüber hinaus sind Uhrband und Verschluß unterschiedlich gestaltet, so daß sich der Verschluß deutlich vom Uhrband absetzt und Verschluß und Uhrband keine harmonische Einheit bilden.In these closure constructions, the hanging of the extension on the one closure part in the receiving closure part is tedious, especially when the watch band is turned over, because the hook-like extension has to be carried out through a narrow gap with relatively little play. In order to open or close the lock of these closures, an aid is also required, e.g. a coin or something like that. In addition, the watch strap and clasp are designed differently, so that the clasp clearly stands out from the watch strap and the clasp and watch strap do not form a harmonious unit.

Die Benutzung von Scharnierverbindungen in Uhrarmbändern, bei denen die Scharnierröhrchen angelötet sind, ist allgemein bekannt. Bei den kleinen Dimensionen, die bei den heutigen superflachen Uhrbändern immer extremer werden, ist dieses Verfahren problematisch, da es sorgfältigstes Arbeiten voraussetzt. Trotz aller Sorgfalt ist in den meisten Fällen eine teure Nachbehandlung erforderlich. Durch die beim Löten entstehenden hohen Temperaturen kann sich das Metall im Umfeld der Lötstelle verfärben. Dies bildet auch besonders ein problem bei Uhrbändern, die auf der Oberseite eine Auflage aus Walzgolddouble haben, welches aufgrund seiner besseren Qualität und Trageeigenschaft gegenüber einer galvanisch aufgebrachten Goldauflage gerne für Uhrbänder verwendet wird. Hier wird eine Nachbehandlung naturgemäß besonders teuer.The use of hinge connections in watch straps in which the hinge tubes are soldered is generally known. With the small dimensions, which are becoming increasingly extreme with today's super-flat watch straps, this process is problematic because it requires the most careful work. Despite all care, an expensive post-treatment is required in most cases. Due to the high temperatures that occur during soldering, the metal in the vicinity of the solder joint can become discolored. This is also a particular problem with watch straps that have a rolled gold double layer on the top, which due to its better quality and wearing properties compared to a galvanically applied gold layer is often used for watch bands. After-treatment is naturally particularly expensive here.

Die Erfindung will die genannten Mängel in bezug auf einen zweiteiligen Verschluß und die Scharnierröhrchenbefestigung beseitigen. Die Erfindung, wie sie in den Ansprüchen dargestellt ist, löst die Aufgabe, ein Uhrband zu schaffen, dessen Verschluß aus wenigen, einfach ausgebildeten und kostengünstig herstellbaren Konstruktionselementen besteht, die sich leicht montieren lassen. Der Verschluß soll sich unauffällig und harmonisch auch in die heute bevorzugten superflachen Uhrbänder einfügen und sich leicht und ohne Hilfsmittel öffnen und schließen lassen. Weiter wird die Befestigung von Scharnierröhrchen aufgezeigt, die auch bei extrem kleinen Dimensionen vorteilhaft und problemlos einsetzbar ist.The invention aims to eliminate the above-mentioned shortcomings with regard to a two-part closure and the hinge tube fastening. The invention, as shown in the claims, solves the problem of creating a watch strap, the closure of which consists of a few, simply constructed and inexpensive to manufacture construction elements which are easy to assemble. The clasp should fit inconspicuously and harmoniously into today's preferred super-flat watch straps and be easy to open and close without tools. Furthermore, the attachment of hinge tubes is shown, which is advantageous and easy to use even with extremely small dimensions.

Die Vorteile der Erfindung sind im wesentlichen darin zu sehen, daß durch das exakte Ineinanderpassen der in Uhrbanddicke ausgebildeten Verschlußteile der Verschluß extrem flach ist und sich mit seiner äußeren Gestaltung wie ein Glied in das Uhrband einfügt. Nur die dünne, der Fixierung des Verschlusses dienende Platte ragt über die Ebene Uhrband/ Verschluß hinaus. Die noch dünnere, auf der Unterseite des Verschlußteilfortsatzes liegende Begrenzungsplatte ist bei umgelegtem Uhrband überhaupt nicht sichtbar und spielt, was die Dicke des Verschlusses anbetrifft, keine Rolle. Die beiden zu verbindenden Teile des Verschlusses werden relativ breitflächig ineinandergelegt,und keine schmalen Spaltenerschweren das Einhängen. Weiter ist die Methode der Befestigung der Scharnierröhrchen durch Laserschweißen äußerst vorteilhaft, da der Brennfleck des Laserstrahls extrem klein ist,und . der Schweißpunkt auch bei kleinen Dimensionen der Scharnierröhrchen genau positioniert werden kann. Die Energie kann über einen großen Bereich nach Bedarf variiert werden, ist genau dosierbar und auf die zu verschweißende Stelle konzentrierbar, so daß die Gefahr der Überhitzung benachbarter Bereiche ausgeschaltet ist. Die Scharnierröhrchen sind, auch bei Uhrbändern mit Walzgoldauflage, sauber und sicher befestigt und halten der Beanspruchung beim Tragen des Uhrbandes stand.The advantages of the invention are essentially to be seen in the fact that, due to the exact fit of the fastener parts embodied in the thickness of the watch strap, the closure is extremely flat and its outer design fits like a link in the watch strap. Only the thin plate used to fix the clasp protrudes beyond the level of the watch strap / clasp. The even thinner delimiting plate lying on the underside of the closure part extension is not visible at all when the watch strap is folded over and plays no role as far as the thickness of the closure is concerned. The two parts of the fastener to be connected are laid into one another over a relatively large area, and no narrow gaps make the hanging difficult. Furthermore, the method of attaching the hinge tubes by laser welding is extremely advantageous since the focal spot of the laser beam is extremely small, and. the welding spot can be precisely positioned even with small dimensions of the hinge tubes. The energy can be varied over a wide range as required, can be precisely metered and concentrated on the point to be welded, so that the risk of Overheating of neighboring areas is switched off. The hinge tubes are securely and securely attached, even on watch bands with rolled gold plating, and withstand the stresses of wearing the watch band.

Anhand der Abbildungen werden die Merkmele des erfindungsgemäßen Uhrbandes mit Verschluß erläutert. Als Ausführungsbeispiele zeigen

  • Abb. 1 eine Teilansicht des Uhrbandes mit einem ersten Ausführungsbeispiel des Uhrbandverschlusses (geöffnet),
  • Abb. 2 eine Teilansicht des Uhrbandes mit dem Uhrbandverschluß nach Abb.1 (geschlossen) von oben,
  • Abb. 3 eine teilweise Seitenansicht des Uhrbandes mit dem Uhrbandverschluß nach Abb.1 (geschlossen),
  • Abb. 4 eine Ansicht einer weiteren Ausführungsform des Uhrbandverschlusses (geschlossen) von oben mit drehbarer platte zur Fixierung,
  • Abb. 5 eine Ansicht einer weiteren Ausführungsform des Uhrbandverschlusses (geschlossen) mit verschiebbarer platte zur Fixierung,
  • Abb. 6 eine Darstellung des zahnstangenförmigen Verschlußteilfortsatzes mit schlitzförmigem Durchbruch und Welle mit rechteckigem Querschnitt,
  • Abb. 7 eine Ansicht einer weiteren Ausführung des Uhrbandverschlusses von oben (geöffnet),
  • Abb. 8 eine Ansicht des Uhrbandverschlusses nach Abb. 7 (geschlossen),
  • Abb. 9 eine Seitenansicht des Uhrbandverschlusses nach Abb. 7 (geschlossen),
  • Abb. 10 Teil des fertig montierten Uhrbandes mit einem Verschlußteil,
  • Abb. 11 ein Glied des Uhrbandes mit angeschweißten Scharnierröhrchen, wobei der Laserstrahl schräg in die Öffnung geschossen wurde,
  • Abb. 12 ein Glied des Uhrbandes mit angeschweißten Scharnierröhrchen, wobei der Laseratrahl senkrecht auf die Scharnierröhrchen geschossen wurde.
The characteristics of the watch band according to the invention with closure are explained with the aid of the figures. Show as embodiments
  • Fig. 1 is a partial view of the watch strap with a first embodiment of the watch strap closure (opened),
  • Fig. 2 is a partial view of the watch strap with the watch strap lock according to Fig. 1 (closed) from above,
  • Fig. 3 is a partial side view of the watch strap with the watch strap lock according to Fig. 1 (closed),
  • Fig. 4 is a view of a further embodiment of the watch strap closure (closed) from above with a rotatable plate for fixing,
  • Fig. 5 is a view of a further embodiment of the watch strap closure (closed) with a sliding plate for fixing,
  • Fig. 6 is a representation of the rack-shaped closure part extension with slot-shaped opening and shaft with a rectangular cross section,
  • Fig. 7 is a view of another embodiment of the watch strap closure from above (open),
  • Fig. 8 is a view of the watch strap clasp according to Fig. 7 (closed),
  • Fig. 9 is a side view of the watch band clasp according to Fig. 7 (closed),
  • Fig. 10 part of the fully assembled watch strap with a fastener,
  • Fig. 11 a link of the watch band with welded hinge tubes, the laser beam being shot obliquely into the opening,
  • Fig. 12 a link of the watch band with welded hinge tubes, the laser beam being shot vertically onto the hinge tubes.

Das erfindungsgemäße Uhrband besteht aus zwei Bandhälften 1,2 mit einer Reihe von Gliedern 3 und je einem Verschlußteil 4 bzw. 5 an den Bandhälften 1 bzw. 2, die mittels Scharniergelenkverbindung untereinander verbunden sind. Glieder 3 und Verschlußteile 4,5 sind an ihrer Unterseite mit Ausnehmungen6 versehen, die dem äußeren Radius der Scharnierröhrchen 7 entsprechen und in denen die Scharnierröhrchen 7 befestigt sind. Zur Verbindung der Glieder 3 und Verschlußteile 4,5 untereinander sind Stifte 8 durch die Scharnierröhrchen 7 geschoben.The watch band according to the invention consists of two band halves 1, 2 with a series of links 3 and a closure part 4 and 5, respectively, on the band halves 1 and 2, which are connected to one another by means of a hinge connection. Links 3 and closure parts 4.5 are provided on their underside with recesses 6 which correspond to the outer radius of the hinge tubes 7 and in which the hinge tubes 7 are fastened. Pins 8 are pushed through the hinge tubes 7 to connect the links 3 and closure parts 4, 5 to one another.

Der Verschluß des erfindungsgemäßen Uhrbandes besteht aus zwei Verschlußteilen 4 und 5, die jeweils an den Enden der Hälften 1 bzw. 2 des Uhrbandes befestigt sind. Der Verschlußteil 4 an dem Bandende 1 ist mit einem Ausschnitt 9 versehen, der in der Ausführungsform nach Abb. 1 die Form eines Hammerkopfes hat. Der andere Verschlußteil 5 hat einen Fortsatz 10, der der Hammerkopfform des Ausschnittes 9 entspricht. Zum Verbinden der beiden Verschlußteile 4 und 5 wird der hammerkopfförmige Fortsatz 10 in den Ausschnitt 9 von unten her eingehängt. Die Lappen 11,11' am Ausgang des Ausschnittes 9 bilden eine Sperre für den darin liegenden hammerkopfförmigen Fortsatz 10, so daß dieser in seiner Ebene nicht verschoben werden kann.The closure of the watch band according to the invention consists of two closure parts 4 and 5, which are each attached to the ends of the halves 1 and 2 of the watch band. The closure part 4 at the band end 1 is provided with a cutout 9, which in the embodiment according to Fig. 1 has the shape of a hammer head. The other closure part 5 has an extension 10, which corresponds to the hammer head shape of the cutout 9. To connect the two closure parts 4 and 5, the hammer-head-shaped extension 10 is hung into the cutout 9 from below. The tabs 11, 11 'at the exit of the cutout 9 form a lock for the hammer-head-shaped extension 10 located therein, so that it cannot be moved in its plane.

Der Verschlußteilfortsatz 10 weist einen Durchbruch 12 auf, in dem eine Welle 13 gelagert ist, an deren Unterseite eine vorzugsweise runde Platte 14 befestigt ist. Diese Platte 14 begrenzt beim Einhängen des mit Ausschnitt 9 versehenen Ver-schlußteils 4 dessen Weg nach unten. Beide Verschlußteile 4 und 5 liegen also in einer Ebene. Am oberen Ende der Welle 13 befindet sich eine mit der Hammerkopfform des Verschlußteilfortsatzes 10 im wesentlichen übereinstimmende Platte 15. Diese Platte 15 dient der Fixierung des Verschlusses. Wird die Platte 15 um 90° gedreht, so überdeckt sie die Lappen 11,11' auf der einen Seite und ragt auf der anderen Seite über den hammerkopfförmigen Ausschnitt 9 mit darin liegendem Verschluß-teilfortsatz 10 hinaus, so daß der Verschlußteil 4 nicht mehr abgehoben werden kann.The closure part extension 10 has an opening 12 in which a shaft 13 is mounted, on the underside of which a preferably round plate 14 is fastened. This plate 14 limits the way downward when the closure part 4 provided with the cutout 9 is hung in. Both closure parts 4 and 5 are therefore in one plane. At the upper end of the shaft 13 there is a plate 15 which essentially corresponds to the hammer head shape of the closure part extension 10. This plate 15 serves to fix the closure. If the plate 15 is rotated by 90 °, it covers the tabs 11, 11 'on one side and on the other side protrudes beyond the hammer-head-shaped cutout 9 with the closure part extension 10 located therein, so that the closure part 4 no longer lifts off can be.

Die Welle 13 hat eine Querbohrung 16, die federnde Rastelemente trägt, z.B. eine Schraubenfeder 17, an deren beiden Enden Metallkugeln 18,18' sitzen, die in Nuten 19 des Durchbruchs 12 im hammerkopfförmigen Verschlußteilfortsatz 10 eingreifen und die Platte 15 beim Drehen in der verschlußoffenen Stellung parallel zum hammerkopfförmigen Verschlußteilfortsatz 10 und in der verschlußverriegelnden Stellung rechtwinklig dazu fixieren (Abb. 2). Zur Erleichterung beim Betätigen der obenliegenden Platte 15 zur Fixierung des Verschlusses hat die Platte 15 (25,40) in allen Ausführungen an ihrer Unterseite schräge Flanken 20. Dadurch läßt sich die Platte 15 erstens leichter greifen,und sie zieht sich außerdem beim Verdrehen von sich aus in ihre den Verschluß verriegelnde Stellung.The shaft 13 has a transverse bore 16 which carries resilient locking elements, e.g. a coil spring 17, at the two ends of which metal balls 18, 18 'are seated, which engage in grooves 19 of the opening 12 in the hammer-head-shaped closure part extension 10 and fix the plate 15 when rotating in the closed position parallel to the hammer-head-shaped closure part extension 10 and in the lock-locking position at right angles thereto (Fig. 2). In order to facilitate the actuation of the top plate 15 to fix the closure, the plate 15 (25, 40) has sloping flanks 20 on its underside in all versions. This makes it easier to grip the plate 15 and also pulls away when it is twisted from their locking position.

In einer anderen Ausführungsform des Verschlusses nach Abb. 4 ist der Ausschnitt 21 in dem einen Verschlußteil 22 nach Art einer auf beiden Seiten mit Zähnen versehenen Stange ausgebildet. Der in seiner Form entsprechende zahnstangenförmige Fortsatz 23 am Verschlußteil 24 kann in verschiedenen Positionen in den Ausschnitt 21 eingehängt werden. Dadurch ergibt sich eine bestimmte Längenverstellbarkeit für das Uhrband.In another embodiment of the closure according to FIG. 4, the cutout 21 is formed in the one closure part 22 in the manner of a rod provided with teeth on both sides. The corresponding rack-shaped extension 23 on the closure part 24 can be hung in different positions in the cutout 21. This results in a certain length adjustability for the watch strap.

Der Mechanismus zur Fixierung des Verschlusses kann in derselben Weise ausgebildet sind, wie oben beschrieben, d.h. mit auf einer Welle angebrachter obenliegender Platte, die sich bei Verdrehen um 90° quer über den im Ausschnitt 21 des des Verschlußteils 22 liegenden zahnstangenförmigen Verschluß-teilfortsatz 23 legt und mit ihren Enden darüber hinausragt, so daß der Verschlußteil 22 mit Ausschnitt 21, der unten auf einer, wie oben beschrieben, am unteren Ende der Welle befestigten Begrenzungsplatte aufliegt, nicht mehr abgehoben werden kann (Abb. 4).The mechanism for fixing the closure can be designed in the same way as described above, that is to say with an overlying plate mounted on a shaft which, when rotated through 90 °, lies transversely over the rack-shaped closure part extension 23 located in the cutout 21 of the closure part 22 and protrudes beyond with their ends, so that the closure part 22 with cutout 21, which rests below on a, as described above, attached to the lower end of the shaft limiting plate can no longer be lifted (Fig. 4).

In einer anderen Ausbildung des Mechanismus zur Fixierung des Verschlusses in dieser Ausführungsform ist auf dem zahnstangenartigen Verschlußteilfortsatz 23 eine in Längsrichtung verschiebbare platte 25 angebracht. Die Platte 25 stimmt mit der Zahnstangenform des Verschlußteilfortsatzes 23 überein. Wird sie um einen halben Zahnrapport in die eine oder andere Richtung verschoben, so überdeckt sie die sich ineinanderschliessenden Zähne von Ausschnitt 21 und Fortsatz 23, und der Ver-schlußteil 22 kann nicht mehr abgehoben werden.In another embodiment of the mechanism for fixing the closure in this embodiment, a plate 25 which can be displaced in the longitudinal direction is attached to the rack-like closure part extension 23. The plate 25 corresponds to the rack shape of the closure part extension 23. If it is shifted by half a tooth repeat in one direction or the other, it covers the interlocking teeth of cutout 21 and extension 23, and the closure part 22 can no longer be lifted off.

Der Mechanismus zur Fixierung der Platte 25 in den Stellungen fluchtend mit den Zähnen und um einen halben Zahnrapport verschoben ist so gestaltet, daß die Welle 26, auf der die Platte 25 angebracht ist, einen rechteckigen Ouerschnitt hat und in dem hier schlitzförmig ausgebildeten Durchbruch 27 verschiebbar ist (Abb. 5). Die Welle 26 weist eine Querbohrung28 auf, durch die eine Schraubenfeder 29 gelegt ist, an deren Enden sich Metallkugeln 30,30' befinden. Beim Verschieben der obenliegenden Platte 25 rasten diese Metallkugeln 30,30, in Nutenpaare 31 ein und fixieren die platte 25 in den genannten Stellungen. Auf der obenliegenden Platte 15,25,40 können Embleme 32 angebracht sein.The mechanism for fixing the plate 25 in the positions aligned with the teeth and shifted by half a tooth repeat is designed so that the shaft 26, on which the plate 25 is attached, has a rectangular cross-section and can be displaced in the slot-shaped opening 27 here is (Fig. 5). The shaft 26 has a transverse bore 28 through which a helical spring 29 is placed, at the ends of which there are metal balls 30, 30 '. When moving the top plate 25, these metal balls 30, 30 engage in pairs of grooves 31 and fix the plate 25 in the positions mentioned. Emblems 32 can be attached to the top plate 15, 25, 40.

In einer weiteren, bevorzugten Ausführungsform ist der Verschlußteil 33 mit einem Ausschnitt 34 versehen, der nach Art eines Quadrats ausgebildet ist, das um 45° verdreht zu den Achsen des Uhrbandes liegt. Der andere Verschlußteil 35 hat einen Fortsatz 36, der der Quadratform des Ausschnittes 34 entspricht.In a further preferred embodiment, the closure part 33 is provided with a cutout 34 which is designed in the manner of a square which is rotated by 45 ° to the axes of the watch band. The other closure part 35 has an extension 36 which corresponds to the square shape of the cutout 34.

Der Verschlußteilfortsatz 36 weist einen runden Durchbruch 37 auf, in dem eine Welle 38 gelagert ist, an deren Unterseite eine vorzugsweise runde platte 39 befestigt ist, während am oberen Ende der Welle 38 eine mit der Quadratform des Verschlußteilfortsatzes 35 übereinstimmende drehbare Platte 40 angebracht ist.The closure part extension 36 has a round opening 37 in which a shaft 38 is mounted, on the underside of which a preferably round plate 39 is fastened, while at the upper end of the shaft 38 a rotatable plate 40 is attached to the square shape of the closure part extension 35.

Die Welle 38 hat eine Querbohrung 41, die federnde Rastelemente trägt, z.B. eine Schraubenfeder 42, an deren Enden Metallkugeln 43,43' sitzen. Der Durchbruch 37 ist mit Nuten 44 versehen.The shaft 38 has a transverse bore 41 which carries resilient locking elements, e.g. a coil spring 42, at the ends of which metal balls 43, 43 'are seated. The opening 37 is provided with grooves 44.

Zum Schließen des Verschlusses wird der Verschlußteil 35 von unten in den Verschlußteil 33 eingehängt. Dabei steht die drehbare platte 40 parallel zum Verschlußteilfortsatz 36. Der Verschlußteilfortsatz 36 paßt genau in den Ausschnitt 34, dessen Flanken 45,45' die Begrenzung in horizontaler Richtung bilden. Die runde Platte 39 begrenzt den Weg des Verschluß- teils 33 nach unten, so daß beide Verschlußteile 33 und 35 in einer Ebene liegen. Die flache nur geringfügig über die Verschlußhöhe hinausragende obenliegende Platte 40 wird zur Verriegelung um 45° gedreht. Die Ecken der Platte 40 überdecken die Seiten des Ausschnittes 34 mit dem darinliegenden Verschlußteilfortsatz 36, so daß der Verschlußteil 33 nicht mehr abgehoben werden kann. Die an den Enden der Schraubenfeder 42 sitzenden Metallkugeln 43,43' schnappen beim Drehen in die im Durchbruch 37 vorgesehenen Nuten 44 ein und fixieren die obenliegende Platte 40 in der jeweils gewünschten Stellung parallel zu dem quadratförmigen Verschlußteilfortsatz 36 und um 45° verdreht dazu.To close the closure, the closure part 35 is hooked into the closure part 33 from below. The rotatable plate 40 is parallel to the closure part extension 36. The closure part extension 36 fits exactly into the cutout 34, the flanks 45, 45 'of which form the boundary in the horizontal direction. The round plate 39 limits the path of the closure part 33 downward, so that both closure parts 33 and 35 lie in one plane. The flat top plate 40, which protrudes only slightly beyond the closure height, is rotated by 45 ° for locking. The corners of the plate 40 cover the sides of the cutout 34 with the closure part extension 36 located therein, so that the closure part 33 can no longer be lifted off. The metal balls 43, 43 'located at the ends of the helical spring 42 snap into the grooves 44 provided in the opening 37 during rotation and fix the top plate 40 in the respectively desired position parallel to the square-shaped closure part extension 36 and rotated by 45 ° thereto.

Die Flanken 46 an der Unterseite der obenliegenden Platte 40 sind wiederum abgeschrägt.The flanks 46 on the underside of the top plate 40 are in turn beveled.

Die Abbildungen 10-12 veranschaulichen, wie die Glieder 3 und die Verschlußteile (z.B. 33) untereinander verbunden sind und wie die zur Scharniergelenkverbindung dienenden Scharnierröhrchen 7 an den Gliedern 3 bzw. am Verschlußteil 33 angebracht sind.Figures 10-12 illustrate how the links 3 and the fastener parts (e.g. 33) are interconnected and how the hinge tubes 7 used for the hinge connection are attached to the links 3 and to the fastener part 33, respectively.

Wie aus Abb. 11 ersichtlich, ist die hintere Wand 47 der Scharnierröhrchen 7 an ihrer Anlagefläche in der Ausnehmung 6 mit dem Glied 3 bzw. Verschlußteil 33 verschweißt. Dazu wird ein Laserstrahl 48 an beiden Enden schräg in die Öffnungen der Scharnierröhrchen 7 geschossen. Da der Schweißpunkt49 extrem klein ist, können zur Erhöhung der Haltbarkeit auch mehrere Schweißpunkte nebeneinandergesetzt werden.As can be seen from FIG. 11, the rear wall 47 of the hinge tubes 7 is welded to the member 3 or closure part 33 on its contact surface in the recess 6. For this purpose, a laser beam 48 is shot obliquely into the openings of the hinge tubes 7 at both ends. Since the welding spot49 is extremely small, several welding spots can be placed side by side to increase durability.

Die in Abb. 12 dargestellten am Glied 3 befestigten Scharnierröhrchen 7 weisen an ihrer vorderen Wand 50 Löcher 51 auf, die der senkrecht von außen auf die Scharnierröhrchen 7 geschossene Laserstrahl 48 durchgebrannt hat. Die hintere Wand 47 der Scharnierröhrchen 7 ist wie oben beschrieben in den Schweißpunkten 49 in den Ausnehmungen 6 am Glied 5 bzw. Verschluß-teil 33 verschweißt.The hinge tubes 7, which are fastened to the link 3 in FIG. 12, have 50 holes 51 on their front wall, which the laser beam 48, which was shot perpendicularly from the outside onto the hinge tubes 7, burned out. The rear wall 47 of the hinge tubes 7 is, as described above, welded in the weld spots 49 in the recesses 6 on the link 5 or closure part 33.

Claims (16)

1. Watch strap with fastening device, said fastening device being designated in such a way that the part (4,22,33) of the fastening device at the one end (1) of the watch strap has a cut-out (9,21,34) and the part (5,24,35) of the fastening device at the other end (2) of the watch strap has an extension (10,23,36) which snugly fits in the cut-out (9,21,34) so that the extension (10,23,36), when lying in the cut-out (9,21,36) can neither be turned nor shifted in its plane, charaterized in that the extension (10,23,36) at the other end (2) of the watch strap is inserted into the cut-out (9,21,34) at the one end (1) of the watch strap from the bottom, and that the watch strap is a link strap the links (3) of which and the parts (4,5; 22,24; 33,35) of the fastening device, which are of the same thickness as the watch strap, are interconnected by hinge joints, the hinge tubes (7) of which are welded at their contact surfaces to the links (3) and the parts (4,5; 22,24; 33,35) of the fastening device by means of a laser beam (48).
2. Watch strap with fastening device according to claim 1, characterized in that the cut-out (9) in the one part (4) of the fastening device and the extension (10) at the other part (5) of the fastening device have a hammer-like shape.
3. Watch strap with fastening device according to claim 1, characterized in that the cut-out (21) in the one part (22) of the fastening device and the extension (23) at the other part (24) of the fastening device are shaped like a bar having teeth on both opposite sides so that the rack-like extension (23) can be hooked into the rack-like cut-out (21) at different positions thus permitting the length of the watch strap to be adjusted in the fastening device.
4. Watch strap with fastening device according to claim 1, characterized in that the cut-out (34) in the one part (33) of the fastening device and the extension (36) at the the other part (35) of the fastening device have the shape of a square tilted by 45° relative to the axes of the watch strap.
5. Watch strap with fastening device according to claims 1 and 2, characterized in that a rotatable plate (15), substantially corresponding in its shape to the hammer-like form of the extension (10) and serving for fixing the fastening device, is provided on the surface of the hammer-like extension (10) of the fastening device, so that upon turning said plate (15) by 90° the part (4) of the fastening device having the hammer-like cut-out (9) can no longer be lifted off.
6. Watch strap with fastening device according to claims 1 and 3, characterized in that a shiftable plate (25), substantially corresponding in its shape to the form of the toothed rack and serving for fixing the fastening device, is provided on the surface of the rack-like extension (23) of the fastening device, so that upon shifting of said plate (25) by half a tooth's length the part (22) of the fastening device having the racklike cut-out (21) can no longer be lifted off.
7. Watch strap with fastening decive according to claims 1 and 4, characterized in that a rotatable plate (40), substantially corresponding in its shape to the square form of the extension (36) of the fastening device and serving for fixing the fastening device, is provided on the surface of the square extension (36) of the fastening device so that upon turning of said plate (40) by 45° the part (33) of the fastening device having the square cut-out (34) can no longer be lifted off.
8. Watch strap with fastening device according to any of the preceding claims, characterized in that the extension part (10,23,36) of the fastening,device has a throughbore (12,27,37) in which the top plate (15,25,40) is supported by means of a shaft (13,26,38), a preferably round plate (14,39) being secured on the same shaft (13,26,38) on the bottom side of the extension part (10,23,36) of the fastening device which plate (14,39) limits the path of the part (4,22,33) of the fastening device downwardly when said part (4,22,33) having the cut-out (9,21,34) is inserted from the top, so that both parts (4,5;22,24;33,35) of the fastening device are located in the same plane.
9. Watch strap with fastening device according to claim 8, characterized in that the shaft (13,26,38) carries resilient stop means (17,18,18';29,30,30'; 42,43,43') which fix the top plate (15,25,40) in certain positions.
10. Watch strap with fastening device according to claims 9, 8, 5, 2 and 1, characterized in that the shaft (13) has a round cross-section, is rotatable in a round throughbore (12) and has a transverse bore (16) which accomodates a coil spring (17), at the two ends of which there are provided metal balls (18,18') which engage in grooves (19) in the throughbore (12) of the hammer head-like extension part (10) and fix the top plate (15) in position seither parallel to the hammer head or at a right angle to the hammer head.
11. Watch strap with fastening device according to claims 9, 8, 6, 3 and 1, characterized in that the shaft (26) has a rectangular cross-section, is shiftable in a slot-shaped throughbore (27) and has a transverse bore (28) which accomodates a coil spring (29), at the two ends of which there are metal balls (30,30') which engange in pairs of grooves (31) in the sides of the throughbore (27) in the rack-like extension part (23) of the fastening device and fix the top plate (25) selectively in positions flush with the teeth and displaced by half a tooth pitch.
12. Watch strap with fastening device according to claims 9, 8, 7, 4 and 1, characterized in that the shaft (38) has a round cross-section, is rotatable in a round throughbore (37) and has a transverse bore (41) which accomodates a coil spring (42), at the two ends of which there are metal balls (43,43') which engage in grooves (44) in the throughbore (73) in the square extension part (36) of the fastening device and fix the top plate (40) in positions parallel to the square extension part (36) and turned by 45° thereto.
13. Watch strap with fastening device according to any of the preceding claims, characterized in that the bottom side of the top plate (15,25,40) has bevelled edges (20,46) so that the turning or shifting of the plate (15,25,40) for fixing the fastening device is facilitated.
14. Watch strap with fastening device according to any of the preceding claims 1-13, characterized in that the hinge tubes (7) are welded to the links (3) and to the parts (4,5; 22,24; 33,35) of the fastening device by means of a laser beam (48) which is directed at an angle into the open ends of the hinge tubes (7).
15. Watch strap with fastening device according to claim 14, characterized in that one or more further welding spots (49) are provided after turning the links (3) or parts (4,5; 22,24; 33,35) of the fastening device together with the hinge tubes (7)around the axis of the hinge tubes (7) by appropriately small angles.
16. Watch strap with fastening device according to any of the preceding claims 1-13, characterized in that by means of a laser beam (49) shot vertically to the axis of the hinge tubes (7) and the energy of which is suitably selected, first a hole (51) is burnt through the front walls(50) of the hinge tubes (7) through which the laser beam (48) hits the rear walls (47) of the hinge tubes (7) and welds these at their contact surfaces to the links (3) and parts (4,5; 22,24; 33,35) of the fastening device.
EP83110523A 1982-11-24 1983-10-21 Fastening device for a watch strap, especially a link strap Expired EP0110107B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19828232954 DE8232954U1 (en) 1982-11-24 1982-11-24 LINK WATCH
DE8232954U 1982-11-24
DE19828233252 DE8233252U1 (en) 1982-11-26 1982-11-26 CLOCK CLASP
DE8233252U 1982-11-26
DE8300986U 1983-01-15
DE19838300986 DE8300986U1 (en) 1983-01-15 1983-01-15 CLOCK CLASP

Publications (2)

Publication Number Publication Date
EP0110107A1 EP0110107A1 (en) 1984-06-13
EP0110107B1 true EP0110107B1 (en) 1986-04-09

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ID=27207528

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Application Number Title Priority Date Filing Date
EP83110523A Expired EP0110107B1 (en) 1982-11-24 1983-10-21 Fastening device for a watch strap, especially a link strap

Country Status (4)

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US (1) US4541151A (en)
EP (1) EP0110107B1 (en)
CA (1) CA1228716A (en)
DE (1) DE3362949D1 (en)

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Publication number Publication date
CA1228716A (en) 1987-11-03
EP0110107A1 (en) 1984-06-13
DE3362949D1 (en) 1986-05-15
US4541151A (en) 1985-09-17

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