EP0436795B1 - Fastening door handle to the spindle - Google Patents

Fastening door handle to the spindle Download PDF

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Publication number
EP0436795B1
EP0436795B1 EP90121396A EP90121396A EP0436795B1 EP 0436795 B1 EP0436795 B1 EP 0436795B1 EP 90121396 A EP90121396 A EP 90121396A EP 90121396 A EP90121396 A EP 90121396A EP 0436795 B1 EP0436795 B1 EP 0436795B1
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EP
European Patent Office
Prior art keywords
leaf spring
screw
square
handle
fixing means
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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
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EP90121396A
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German (de)
French (fr)
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EP0436795A2 (en
EP0436795A3 (en
Inventor
Herbert Hoppe
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Hoppe Holding AG
Hoppe and Co GmbH KG
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Hoppe Holding AG
Hoppe and Co GmbH KG
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Priority to AT90121396T priority Critical patent/ATE101228T1/en
Publication of EP0436795A2 publication Critical patent/EP0436795A2/en
Publication of EP0436795A3 publication Critical patent/EP0436795A3/en
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Publication of EP0436795B1 publication Critical patent/EP0436795B1/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00—Fastening knobs or handles to lock or latch parts
    • E05B3/02—Fastening knobs or handles to the spindle by pinning or riveting

Definitions

  • the invention relates to a door handle connection according to the preamble of claim 1.
  • Door handles are usually connected to each other by means of a square pin that passes through a lock nut.
  • a square pin that passes through a lock nut.
  • the bolt latch moving forward or backward due to the rotation of the lock nut.
  • the square pin must be anchored on both sides in the interior of the handle necks, so that they sit axially immovable, but can be rotated in their storage, in accordance with the respective door thickness.
  • a two-part connecting pin was previously used, which has wider notches at one end of each pin half with wedge surfaces that narrow in two directions and between which a conical expansion screw, which is radially screwed into the handle neck, engages. Occasionally, however, their seat depth is too large or too small. Another disadvantage is that a left and right half is required for each square pin; Production and warehousing are burdened twice as a result.
  • a door handle connection according to DE-U-8 605 427 with a spreading extension over the entire length of a two-part connecting pin is also more favorable in this regard.
  • a threaded pin presses an onion-shaped thickening when screwing in so that the square halves wedge in the blind hole of each handle neck and in the lock nut.
  • the penetrated tip of the grub screw is supported in the longitudinal groove cavity on the displaced material of the collar edges.
  • the square halves can shift slightly against each other when subjected to heavy loads and then torsions that occur cannot be fully transferred.
  • a solid pin described in DE-U-8 811 672 has at least at one end a longitudinal slot with grooves which serve as a receiving channel for a plastic core in order to hold a screw tip, which is also thickened in an onion, in tough material. But this can age and become brittle; the screwed onion tip can work in the softer and more flexible material, so that a permanent axial fastening is not always guaranteed.
  • the arrangement according to FR-A-2 076 269 provides a connecting pin with a continuous longitudinal groove, which e.g. Be V-shaped and can be deformed from the cone of a grub screw to the outside. No spring element is present, so that an axially stepless connection is possible, but without the bracing required to bridge the manufacturing tolerances in the handle parts and therefore not permanently fixed.
  • an undulated leaf spring which is slotted on one side is provided. It should be fixed with a bend in the outside door handle, which requires the frictional driving of the connecting pin into the handle neck.
  • the leaf spring must be radial in the so-called hole part next to the connecting pin 2 Have movement play.
  • Such connections include a construction according to DE-U-7 426 528, a one-piece, ie solid square pin each having a recess on the end faces into which a weakly corrugated leaf spring engages with bent back ends. It lies largely on a side surface of the square, one end of which has a corrugated bevel. Fastening is therefore basically only possible with the tolerance of the groove spacing, which is why the axial adjustment is unsafe and more or less shaky due to the given step dimension.
  • the inclined surface is not only complex in terms of production technology, but also a great disadvantage when it comes to assembly.
  • its inclination forces the fastening screw to have a different depth, which in the case of large door thicknesses engages further out and then protrudes from the surface of the handle, which is optically unfavorable and can even cause injury.
  • the screw always hits the leaf spring and is intended to press the leaf spring into or into a transverse groove on the inclined surface.
  • this is by no means guaranteed because the screw tip - if it penetrates the leaf spring at all - can meet a rib between the transverse grooves; but if it slips or has to slip, the connecting pin is inevitably axially looser.
  • the object of the invention is to provide an improved door handle connection with a solid square pin, which can be produced inexpensively and assembled continuously, a wide range of door thicknesses and the reusability after repeated disassembly should be possible with means that are simplified compared to conventional devices.
  • the connecting pin has on one side surface a continuous, cross-sectionally V-shaped longitudinal groove and at the end a blind hole with shoulders for supporting the angled ends of the leaf spring, which have a uniform width throughout and are therefore simple with or without pretension, but is set securely and without displacement on the square pin.
  • Whose longitudinal groove facilitates the penetration of the fastening screw into a leaf spring longitudinal slot which is provided at the end and is narrower than a thickening of the fastening screw, so that it presses into or through the longitudinal slot with a bead.
  • This attachment receives a special tension that the corrugated area of the leaf spring holds the connecting pin in the lock nut, so that it can not "wander". Manufacturing and assembly are very simple and correspondingly inexpensive.
  • the blind hole diameter according to claim 2 is substantially equal to the width of a shallow groove receiving the leaf spring, so that a uniform border is ensured.
  • a particularly stable fastening is also achieved in that the longitudinal slots and the longitudinal groove are aligned with one another, in particular in the center.
  • Such a symmetrical structure best takes into account the general assembly conditions.
  • the longitudinal slots are somewhat offset with respect to the longitudinal groove in order to achieve or support additional lateral clamping.
  • the groove walls can assume a wedge angle to each other that is at least almost the same as the opening angle of a cone tip of the fastening screw.
  • the cone tip When screwing in, the cone tip is therefore guided so that it penetrates the bottom of the groove transversely into the square pin. Displaced material supports the cone tip on the side, which gives it even better grip.
  • the fastening screw can be a threaded pin with an onion-shaped cone tip, as known from DE-U-8 605 427.
  • This training is recommended for fastening metallic components.
  • a self-tapping screw is advantageously used, the lower thread edge of which secures the desired fastening by cutting into the leaf spring and into the square pin.
  • Fig. 1 shows an example of a door handle connection with two door handles 10 and 10 ', which are connected to their handle necks 12 and 12' by means of a square connecting pin 14.
  • a fastening screw 30 is screwed into a radial threaded hole 32 of each handle neck 12 or 12 ', which can be provided with a cone tip 34 as well as a thickening or a bead 36 and an internal hexagon 44 (FIG. 4b).
  • a leaf spring 20 is arranged on a side surface 16 of the square pin 14, for which different embodiments come into consideration.
  • 2a and 2b show a leaf spring 20 with a central corrugation area 22 and angled ends 24, 24 '. Towards these ends, longitudinal slots 26, 26 'are preferably provided which are missing in the embodiment of FIGS. 3 and 3b.
  • the leaf spring 20 shown there has basically the same structure, but without openings.
  • the cone tip 34 of the fastening screw 30 has a specific cone opening angle ⁇ . This is preferably slightly smaller than a wedge angle of the longitudinal groove 40, which extends over the entire length of the connecting pin 14. If the screw 30 is now screwed into the radial threaded hole 32 of the handle neck 12, the conical tip 34 and then also the thickening 36 first penetrates the leaf spring 20, which can have a suitable longitudinal slot 26 (FIG. 5b). In the longitudinal groove 40, the cone tip 34 is guided centrally into the groove base (FIG. 5a), into which it is pressed when it is screwed in further (FIG. 5b).
  • FIGS. 6a and 6b show that the square pin 14 has a flat groove 18 on one side surface 16 in order to receive the leaf spring 20 (FIGS. 2a, 2b and 3a, 3b). Their angled end 24 (or 24 ') engages in an associated blind hole 28 (or 28') near the ends of the connecting pin 14.
  • the depth t of the shallow groove 18 is dimensioned such that the material thickness of the leaf spring 20 can be accommodated therein.
  • Its width b is essentially as large as that Diameter d of the blind hole 28 (FIG. 6b), but shoulders 42 at which the inserted leaf spring 20 is supported can be present at the blind hole entrance with a slightly larger width.
  • FIG. 7 A modified embodiment is shown in FIG. 7, wherein a handle neck 12 made of plastic is penetrated by a fastening screw 30, which is designed as a self-tapping screw and penetrates the leaf spring 20 in the region of the longitudinal slot 26 with the lower thread edge.
  • the end of the screw shaft 38 is pressed into the base of the longitudinal groove 40 when the fastening screw 30 is fully screwed in, so that the square pin 14 is fixed axially.
  • the longitudinal groove 40 can also deviate from the drawn contour, but preferably with adaptation to the shape of the press-in tip of the fastening screw 30. If this has a thickening or a bulge 26, this can also have a different shape, for example with at least one an undercut.
  • the invention further contemplates slightly displacing the longitudinal slots 26, 26 'and the center of the longitudinal groove 40 in order to achieve an additional wedge effect.
  • the diameter d of the blind holes 28, 28 'in the square pin 14 can also be smaller, but expediently such that the constricted ends 24, 24' of the leaf spring 20 are held in a snug or clamped fit.
  • the corrugation 22 of the leaf spring 20 is preferably chosen so that the latter is held with a slight preload between the one side surface 16 and the square holes of the handle necks 12, 12 'or the lock nut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Connection Of Plates (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Casings For Electric Apparatus (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

To connect two door handles (10, 10'), the handle neck (12, 12') of which has a respective blind hole for the positive reception of a square pin (14), against one side face (16) of which largely bears a slightly corrugated leaf spring (20), the latter, together with the square pin (14), is fixed to at least one handle by means of a preferably self-tapping screw (30). The angled ends (24, 24') of the leaf spring (20) seated in the continuous longitudinal groove (40) engage in blind holes (28, 28') located at the ends. The groove walls assume relative to one another a wedge angle ( alpha ) which at least approximates to the aperture ( beta ) of the cone tip (34) of a screw (30) thickened in an onion-shaped manner. Shoulders (42) on or next to each blind hole (28, 28') support the leaf spring (20) which, towards each of the ends, has a longitudinal slot (26, 26') narrower than the screw thickening (36). The longitudinal slots (26, 26') and longitudinal groove (40) are aligned with one another especially centrally in the leaf spring (20) or on the one square-pin side face (16). The material thickness of the leaf spring (20) corresponds to the depth (t) of a shallow groove (18), the width (b) is at least equal to the blind-hole diameter (d). <IMAGE>

Description

Die Erfindung betrifft eine Türgriffverbindung gemäß dem Oberbegriff von Anspruch 1.The invention relates to a door handle connection according to the preamble of claim 1.

Türgriffe werden üblicherweise miteinander mittels eines Vierkantstifts verbunden, der eine Schloßnuß durchsetzt. Durch formschlüssige Mitnahme ist gewährleistet, daß bei Betätigung des einen Griffes sich der andere zwangsläufig ebenso bewegt, wobei die Riegelfalle wegen der Drehung der Schloßnuß vor- bzw. zurückfährt. Dazu muß der Vierkantstift unter Anpassung an die jeweilige Türstärke im Inneren der Griffhälse beiderseits so verankert sein, daß diese axial unverrückbar sitzen, jedoch in ihrer Lagerung drehbar sind.Door handles are usually connected to each other by means of a square pin that passes through a lock nut. By positive entrainment it is ensured that when one handle is actuated the other moves inevitably as well, the bolt latch moving forward or backward due to the rotation of the lock nut. For this purpose, the square pin must be anchored on both sides in the interior of the handle necks, so that they sit axially immovable, but can be rotated in their storage, in accordance with the respective door thickness.

Man hat früher einen zweiteiligen Verbindungsstift benutzt, der an einm Ende jeder Stifthälfte breitere Kerben mit Keilflächen hat, die sich in zwei Richtungen verengen und zwischen die eine in den Griffhals radial eingedrehte kegelige Spreiz-Schraube greift. Gelegentlich ist aber deren Einsitztiefe zu groß oder zu klein. Nachteilig ist auch, daß für jeden Vierkantstife eine linke und eine rechte Hälfte benötigt wird; Produktion und Lagerhaltung werden dadurch doppelt belastet.A two-part connecting pin was previously used, which has wider notches at one end of each pin half with wedge surfaces that narrow in two directions and between which a conical expansion screw, which is radially screwed into the handle neck, engages. Occasionally, however, their seat depth is too large or too small. Another disadvantage is that a left and right half is required for each square pin; Production and warehousing are burdened twice as a result.

Günstiger ist auch diesbezüglich eine Türgriffverbindung nach DE-U-8 605 427 mit einem Spreizansatz über die ganze Länge eines zweiteiligen Verbindungsstiftes. Zwischen Kragenkanten oberhalb von Längsnuten der gleichartigen Vierkanthälften preßt ein Gewindestift beim Einschrauben eine zwiebelförmige Verdickung so, daß die Vierkanthälften sich im Sackloch jedes Griffhalses sowie in der Schloßnuß verkeilen. Die eingedrungene Spitze des Gewindestiftes stützt sich im Längsnut-Hohlraum an verdrängtem Material der Kragenkanten ab. Jedoch können sich die Vierkanthälften bei starker Beanspruchung gegeneinander etwas verschieben und dann auftretende Torsionen nicht voll übertragen.A door handle connection according to DE-U-8 605 427 with a spreading extension over the entire length of a two-part connecting pin is also more favorable in this regard. Between the collar edges above the longitudinal grooves of the similar square halves, a threaded pin presses an onion-shaped thickening when screwing in so that the square halves wedge in the blind hole of each handle neck and in the lock nut. The penetrated tip of the grub screw is supported in the longitudinal groove cavity on the displaced material of the collar edges. However, the square halves can shift slightly against each other when subjected to heavy loads and then torsions that occur cannot be fully transferred.

Ein in DE-U-8 811 672 beschriebener Vollstift hat an zumindest einem Ende einen Längsschlitz mit Auskehlungen, die als Aufnahmekanal für eine Kunststoffseele dienen, um eine ebenfalls zwiebelförmig verdickte Schraubspitze in zähem Material zu halten. Dieses kann aber altern und spröde werden; auch kann die eingeschraubte Zwiebelspitze in dem weicheren und nachgiebigen Material arbeiten, so daß eine dauerhafte Axialbefestigung nicht immer gewährleistet ist.A solid pin described in DE-U-8 811 672 has at least at one end a longitudinal slot with grooves which serve as a receiving channel for a plastic core in order to hold a screw tip, which is also thickened in an onion, in tough material. But this can age and become brittle; the screwed onion tip can work in the softer and more flexible material, so that a permanent axial fastening is not always guaranteed.

Die Anordnung nach FR-A-2 076 269 sieht einen Verbindungsstift mit durchgehender Längsnut vor, die z.B. V-förmig profiliert sein und vom Konus eines Gewindestifts nach außen druckverformt werden kann. Irgendein Federelement ist dabei nicht vorhanden, so daß zwar eine axial stufenlose Verbindung möglich ist, jedoch ohne eine zur Überbrückung der Fertigungs-Toleranzen notwendige Verspannung in den Griffteilen und mithin nicht dauerhaft fest.The arrangement according to FR-A-2 076 269 provides a connecting pin with a continuous longitudinal groove, which e.g. Be V-shaped and can be deformed from the cone of a grub screw to the outside. No spring element is present, so that an axially stepless connection is possible, but without the bracing required to bridge the manufacturing tolerances in the handle parts and therefore not permanently fixed.

Bei einer Türdrückerverbindung gemäß DE-A-2 024 652 ist eine ungewellte, einseitig längsgeschlitzte Blattfeder vorgesehen. Sie soll mit einer Abwinkelung im Außentürdrücker festgelegt werden, was dort das vollständige reibschlüssige Eintreiben des Verbindungsstifts in den Griffhals voraussetzt. Die Blattfeder muß im sog. Lochteil neben dem Verbindungsstift 2 radiales Bewegungsspiel haben. Beim festen Eindrehen einer Druckschraube spreizt ein Konus die Blattfeder, deren Schenkel außen Sägezähne zur Kantenpressung im Vierkantloch haben, wobei sich aber ein Zapfen 10 der Druckschraube verformt, so daß diese nicht wiederverwendbar ist.In the case of a door handle connection according to DE-A-2 024 652, an undulated leaf spring which is slotted on one side is provided. It should be fixed with a bend in the outside door handle, which requires the frictional driving of the connecting pin into the handle neck. The leaf spring must be radial in the so-called hole part next to the connecting pin 2 Have movement play. When a pressure screw is screwed in tightly, a cone expands the leaf spring, the legs of which have saw teeth on the outside for edge pressure in the square hole, but a pin 10 of the pressure screw deforms so that it is not reusable.

Bei anderen Beschlagverbindungen ist es nachteilig, daß wiederum verschiedene Einzelteile mit aufeinander abgestimmten Toleranzen gefertigt und montiert werden müssen. Die Befestigung ist im Endergebnis dennoch oft unvollkommen; vielfach ist bloß eine stufenweise Axialverstellung, also keine optimale Anpassung an die jeweiligen Abmessungen der Tür möglich. Zu solchen Verbindungen zählt eine Konstruktion gemäß DE-U-7 426 528, wobei ein einteiliger, d.h. massiver Vierkantstift an den Stirnflächen je eine Vertiefung hat, in welche eine schwach gewellte Blattfeder mit zurückgebogenen Enden greift. Sie liegt großenteils an einer Seitenfläche des Vierkants auf, deren eines Ende eine geriffelte Schräge aufweist. Eine Befestigung ist daher grundsätzlich nur mit der Toleranz des Rillenabstandes möglich, weshalb die Axialeinstellung durch das gegebene Stufenmaß unsicher und mehr oder weniger wackelig ist. Die Schrägfläche ist nicht nur fertigungstechnisch aufwendig, sondern auch bei der Montage von großem Nachteil. Ihre Neigung erzwingt je nach der tatsächlich vorkommenden Türstärke einen unterschiedlich tiefen Sitz der Befestigungsschraube, die bei großen Türstärken weiter außen angreift und dann am Griffteil von dessen Oberfläche vorsteht, was optisch ungünstig ist und sogar eine Verletzungsgefahr bewirken kann. Die Schraube trifft stets auf die Blattfeder und soll letztere an oder in eine Quernut der Schrägfläche drücken. Das ist jedoch keineswegs gewährleistet, weil die Schraubspitze - falls sie die Blattfeder überhaupt durchdringt - auf eine Rippe zwischen den Quernuten treffen kann; wenn sie aber abrutscht oder abrutschen muß, ergibt sich zwangsläufig ein axial lokkerer Sitz des Verbindungsstifts. Eine Mehrfachmontage ist kaum möglich, schon wegen der bereits beim ersten Anpressen außerordentlich starken Spitzenbeanspruchung und dadurch bedingter Verformung zumindest der Spitze, unter Umständen aber auch der Blattfeder. Zu beachten ist im übrigen, daß letztere mit ihrer schwachen Wellung lediglich einen klapperfreien Sitz in der Schloßnuß erzielen soll, jedoch in den Griffteilen selbst eben verläuft und dort keine radiale Verspannung zwischen Verbindungsstift und Vierkantloch hervorrufen kann.With other fitting connections, it is disadvantageous that different individual parts with coordinated tolerances have to be manufactured and assembled. The end result is often imperfect; in many cases, only a gradual axial adjustment is possible, i.e. no optimal adaptation to the respective dimensions of the door. Such connections include a construction according to DE-U-7 426 528, a one-piece, ie solid square pin each having a recess on the end faces into which a weakly corrugated leaf spring engages with bent back ends. It lies largely on a side surface of the square, one end of which has a corrugated bevel. Fastening is therefore basically only possible with the tolerance of the groove spacing, which is why the axial adjustment is unsafe and more or less shaky due to the given step dimension. The inclined surface is not only complex in terms of production technology, but also a great disadvantage when it comes to assembly. Depending on the actual thickness of the door, its inclination forces the fastening screw to have a different depth, which in the case of large door thicknesses engages further out and then protrudes from the surface of the handle, which is optically unfavorable and can even cause injury. The screw always hits the leaf spring and is intended to press the leaf spring into or into a transverse groove on the inclined surface. However, this is by no means guaranteed because the screw tip - if it penetrates the leaf spring at all - can meet a rib between the transverse grooves; but if it slips or has to slip, the connecting pin is inevitably axially looser. Multiple assembly is hardly possible, if only because of the extremely high peak loads already during the first pressing and therefore conditional deformation of at least the tip, but possibly also the leaf spring. It should also be noted that the latter, with its weak corrugation, is only intended to achieve a rattle-free fit in the lock nut, but runs evenly in the handle parts itself and there can cause no radial tension between the connecting pin and the square hole.

Aufgabe der Erfindung ist die Schaffung einer verbesserten Türgriffverbindung mit einem massiven Vierkantstift, der sich kostengünstig herstellen und stufenlos montieren läßt, wobei ein weiter Bereich von Türstärken sowie die Wiederverwendbarkeit nach wiederholter Demontage mit Mitteln möglich sein soll, die gegenüber herkömmlichen Vorrichtungen vereinfacht sind.The object of the invention is to provide an improved door handle connection with a solid square pin, which can be produced inexpensively and assembled continuously, a wide range of door thicknesses and the reusability after repeated disassembly should be possible with means that are simplified compared to conventional devices.

Hauptmerkmale der Erfindung sind im kennzeichnenden Teil von Anspruch 1 angegeben. Weiterbildungen sind Gegenstand der Ansprüche 2 bis 6.Main features of the invention are set out in the characterizing part of claim 1. Further developments are the subject of claims 2 to 6.

Nach der Erfindung hat der Verbindungsstift an der einen Seitenfläche eine durchgehende, im Querschnitt V-förmige Längsnut und endseitig je ein Sackloch mit Schultern zur Abstützung der abgewinkelten Enden der Blattfeder, die durchgehend einheitliche Breite haben und dadurch in einfacher Weise mit oder ohne Vorspannung, aber verschiebungsfrei und sicher an dem Vierkantstift festgelegt wird. Dessen Längsnut erleichtert das Eindringen der Befestigungsschraube in einen endseitig vorhandenen Blattfeder-Längsschlitz, der schmaler als eine Verdikkung der Befestigungsschraube ist, so daß diese sich mit einem Wulst in den Längsschlitz hinein bzw. durch ihn hindurch preßt. Diese Befestigung erhält dadurch eine besondere Spannung, daß der Wellbereich der Blattfeder den Verbindungsstift in der Schloßnuß festhält, so daß er nicht "wandern" kann. Fertigung und Montage sind sehr einfach und entsprechend kostengünstig.According to the invention, the connecting pin has on one side surface a continuous, cross-sectionally V-shaped longitudinal groove and at the end a blind hole with shoulders for supporting the angled ends of the leaf spring, which have a uniform width throughout and are therefore simple with or without pretension, but is set securely and without displacement on the square pin. Whose longitudinal groove facilitates the penetration of the fastening screw into a leaf spring longitudinal slot which is provided at the end and is narrower than a thickening of the fastening screw, so that it presses into or through the longitudinal slot with a bead. This attachment receives a special tension that the corrugated area of the leaf spring holds the connecting pin in the lock nut, so that it can not "wander". Manufacturing and assembly are very simple and correspondingly inexpensive.

Für die Halterung der Blattfeder ist es vorteilhaft, wenn der Sackloch-Durchmesser gemäß Anspruch 2 im wesentlichen gleich der Breite einer die Blattfeder aufnehmenden Flachnut geringer Tiefe ist, so daß eine gleichmäßige Einfassung gewährleistet wird. Eine besonders stabile Befestigung erzielt man ferner, indem nach Anspruch 3 die Längsschlitze und die Längsnut miteinander fluchtend, insbesondere mittig angeordnet sind. Ein solcher symmetrischer Aufbau trägt am ehesten den allgemeinen Montage-Gegebenheiten Rechnung. Es ist aber auch möglich und erfindungsgemäß vorgesehen, daß die Längsschlitze in bezug auf die Längsnut etwas versetzt sind, um eine zusätzliche seitliche Klemmung zu erreichen bzw. zu unterstützen.For the mounting of the leaf spring, it is advantageous if the blind hole diameter according to claim 2 is substantially equal to the width of a shallow groove receiving the leaf spring, so that a uniform border is ensured. A particularly stable fastening is also achieved in that the longitudinal slots and the longitudinal groove are aligned with one another, in particular in the center. Such a symmetrical structure best takes into account the general assembly conditions. However, it is also possible and provided according to the invention that the longitudinal slots are somewhat offset with respect to the longitudinal groove in order to achieve or support additional lateral clamping.

Laut Anspruch 4 können die Nutenwände zueinander einen Keilwinkel einnehmen, der dem Öffnungswinkel einer Konusspitze der Befestigungsschraube zumindest beinahe gleichkommt. Beim Einschrauben wird die Konusspitze daher so geführt, daß sie den Nutengrund druchsetzend in den Vierkantstift quer eindringt. Dabei verdrängtes Material stützt die Konusspitze seitlich ab, wodurch sie noch besseren Halt bekommt.According to claim 4, the groove walls can assume a wedge angle to each other that is at least almost the same as the opening angle of a cone tip of the fastening screw. When screwing in, the cone tip is therefore guided so that it penetrates the bottom of the groove transversely into the square pin. Displaced material supports the cone tip on the side, which gives it even better grip.

Nach Anspruch 5 kann die Befestigungsschraube ein Gewindestift mit zwiebelförmiger Konusspitze sein, wie aus DE-U-8 605 427 an sich bekannt. Diese Ausbildung empfiehlt sich zur Befestigung metallischer Bauteile. Sind jedoch die Griffe oder zumindest ihr Griffhals aus Kunststoff, so wird vorteilhaft gemäß Anspruch 6 eine Selbstschneidschraube benutzt, deren untere Gewindekante durch Einschneiden in die Blattfeder und in den Vierkantstift die gewünschte Befestigung sichert.According to claim 5, the fastening screw can be a threaded pin with an onion-shaped cone tip, as known from DE-U-8 605 427. This training is recommended for fastening metallic components. However, if the handles or at least their handle neck are made of plastic, then a self-tapping screw is advantageously used, the lower thread edge of which secures the desired fastening by cutting into the leaf spring and into the square pin.

Weitere Merkmale, Einzelheiten und Vorteile der Erfindung ergeben sich aus dem Wortlaut der Ansprüche sowie aus der folgenden Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Darin zeigen:

Fig. 1
eine Draufsicht, teilweise im Schnitt, auf eine erfindungsgemäße Türgriffverbindung,
Fig. 2a
eine Draufsicht und
Fig. 2b
eine Seitenansicht einer gewellten Blattfeder mit endseitigen Längsschlitzen,
Fig. 3a
eine Draufsicht und
Fig. 3b
eine Seitenansicht einer ungeschlitzten Blattfeder,
Fig. 4a
eine Draufsicht und
Fig. 4b
eine Seitenansicht eines Gewindestiftes mit verdickter Konusspitze,
Fig. 5a
einen vergrößerten Querschnitt durch einen Griffhals mit befestigtem Verbindungsstift,
Fig. 5b
eine Axialschnittansicht eines Griffhalses mit in den Verbindungsstift eingedrungener Befestigungsschraubspitze,
Fig. 6a
eine vergrößerte Schnittansicht des Endes eines Verbindungsstiftes mit eingesetztem Blattfeder-Ende,
Fig. 6b
eine Querschnittsansicht durch ein Sackloch des Verbindungsstiftes von Fig. 6a und
Fig. 7
eine Axialschnittansicht einer abgewandelten Ausführungsform einer Türgriffverbindung mit einer Selbstschneidschraube.
Further features, details and advantages of the invention result from the wording of the claims and from the following description of exemplary embodiments with reference to the drawing. In it show:
Fig. 1
2 shows a plan view, partly in section, of a door handle connection according to the invention,
Fig. 2a
a top view and
Fig. 2b
a side view of a corrugated leaf spring with end longitudinal slots,
Fig. 3a
a top view and
Fig. 3b
a side view of an unslit leaf spring,
Fig. 4a
a top view and
Fig. 4b
a side view of a grub screw with a thickened cone tip,
Fig. 5a
an enlarged cross section through a handle neck with attached connecting pin,
Fig. 5b
3 shows an axial sectional view of a handle neck with a fastening screw tip which has penetrated into the connecting pin,
Fig. 6a
an enlarged sectional view of the end of a connecting pin with inserted leaf spring end,
Fig. 6b
a cross-sectional view through a blind hole of the connecting pin of Fig. 6a and
Fig. 7
an axial sectional view of a modified embodiment of a door handle connection with a self-tapping screw.

Fig. 1 zeigt beispielhaft eine Türgriffverbindung mit zwei Türgriffen 10 und 10', die an ihren Griffhälsen 12 bzw. 12' mittels eines Vierkant-Verbindungsstiftes 14 verbunden sind. Dazu ist in ein Radial-Gewindeloch 32 jedes Griffhalses 12 bzw. 12' eine Befestigungsschraube 30 eingeschraubt, die mit einer Konusspitze 34 sowie einer Verdickung bzw. einem Wulst 36 und einem Innensechskant 44 versehen sein kann (Fig. 4b).Fig. 1 shows an example of a door handle connection with two door handles 10 and 10 ', which are connected to their handle necks 12 and 12' by means of a square connecting pin 14. For this purpose, a fastening screw 30 is screwed into a radial threaded hole 32 of each handle neck 12 or 12 ', which can be provided with a cone tip 34 as well as a thickening or a bead 36 and an internal hexagon 44 (FIG. 4b).

An einer Seitenfläche 16 des Vierkantstiftes 14 ist eine Blattfeder 20 angeordnet, für die verschiedene Ausführungsformen in Betracht kommen. Fig. 2a und 2b zeigen eine Blattfeder 20 mit einem mittleren Wellungsbereich 22 und abgewinkelten Enden 24, 24'. Zu diesen Enden hin sind bevorzugt mittig verlaufende Längsschlitze 26, 26' vorgesehen, die im Ausführungsbeispiel von Fig. 3 und Fig. 3b fehlen. Die dort dargestellte Blattfeder 20 hat prinzipiell gleichartigen Aufbau, jedoch ohne Durchbrüche.A leaf spring 20 is arranged on a side surface 16 of the square pin 14, for which different embodiments come into consideration. 2a and 2b show a leaf spring 20 with a central corrugation area 22 and angled ends 24, 24 '. Towards these ends, longitudinal slots 26, 26 'are preferably provided which are missing in the embodiment of FIGS. 3 and 3b. The leaf spring 20 shown there has basically the same structure, but without openings.

Man erkennt insbesondere aus Fig. 4b, daß die Konusspitze 34 der Befestigungsschraube 30 einen bestimmten Kegel-Öffnungswinkel β hat. Dieser ist vorzugsweise geringfügig kleiner als ein Keilwinkel der Längsnut 40, die sich über die ganze Länge des Verbindungsstiftes 14 erstreckt. Wird nun die Schraube 30 im Radial-Gewindeloch 32 des Griffhalses 12 eingedreht, so durchdringt die Konusspitze 34 und anschließend auch die Verdickung 36 zunächst die Blattfeder 20, die einen passenden Längsschlitz 26 haben kann (Fig. 5b). In der Längsnut 40 wird die Konusspitze 34 zentrisch einlaufend in den Nutengrund geführt (Fig. 5a), in den sie sich bei weiterem Eindrehen einpreßt (Fig. 5b).It can be seen in particular from FIG. 4b that the cone tip 34 of the fastening screw 30 has a specific cone opening angle β. This is preferably slightly smaller than a wedge angle of the longitudinal groove 40, which extends over the entire length of the connecting pin 14. If the screw 30 is now screwed into the radial threaded hole 32 of the handle neck 12, the conical tip 34 and then also the thickening 36 first penetrates the leaf spring 20, which can have a suitable longitudinal slot 26 (FIG. 5b). In the longitudinal groove 40, the cone tip 34 is guided centrally into the groove base (FIG. 5a), into which it is pressed when it is screwed in further (FIG. 5b).

Die vergrößerten Schnittansichten von Fig. 6a und 6b lassen erkennen, daß der Vierkantstift 14 an der einen Seitenfläche 16 eine Flachnut 18 hat, um die Blattfeder 20 (Fig. 2a, 2b bzw. 3a, 3b) aufzunehmen. Deren abgewinkeltes Ende 24 (bzw. 24') greift in ein zugeordnetes Sackloch 28 (bzw. 28') nahe den Enden den Verbindungsstiftes 14 ein. Die Tiefe t der Flachnut 18 ist so bemessen, daß die Materialstärke der Blattfeder 20 darin Platz findet. Deren Breite b ist im wesentlichen so groß wie der Durchmesser d des Sackloches 28 (Fig. 6b), doch können bei geringfügig größerer Breite am Sackloch-Eingang Schultern 42 vorhanden sein, an denen sich die eingelegte Blattfeder 20 abstützt.The enlarged sectional views of FIGS. 6a and 6b show that the square pin 14 has a flat groove 18 on one side surface 16 in order to receive the leaf spring 20 (FIGS. 2a, 2b and 3a, 3b). Their angled end 24 (or 24 ') engages in an associated blind hole 28 (or 28') near the ends of the connecting pin 14. The depth t of the shallow groove 18 is dimensioned such that the material thickness of the leaf spring 20 can be accommodated therein. Its width b is essentially as large as that Diameter d of the blind hole 28 (FIG. 6b), but shoulders 42 at which the inserted leaf spring 20 is supported can be present at the blind hole entrance with a slightly larger width.

Ein abgewandelte Ausführungsform zeigt Fig. 7, wobei ein aus Kunststoff bestehender Griffhals 12 von einer Befestigungsschraube 30 durchsetzt wird, die als Selbstschneidschraube ausgebildet ist und mit der unteren Gewindekante die Blattfeder 20 im Bereich des Längsschlitzes 26 durchsetzt. Das Ende des Schraubschaftes 38 ist bei voll eingedrehter Befestigungsschraube 30 in den Grund der Längsnut 40 eingepreßt, so daß der Vierkantstift 14 axial festgelegt ist.A modified embodiment is shown in FIG. 7, wherein a handle neck 12 made of plastic is penetrated by a fastening screw 30, which is designed as a self-tapping screw and penetrates the leaf spring 20 in the region of the longitudinal slot 26 with the lower thread edge. The end of the screw shaft 38 is pressed into the base of the longitudinal groove 40 when the fastening screw 30 is fully screwed in, so that the square pin 14 is fixed axially.

In den Rahmen der Erfindung fallen auch nicht dargestellte Abwandlungen, beispielsweise dergestalt, daß der Verbindungsstift 14 in einem der beiden Griffe 10, 10' etwa durch eine Verstiftung oder stoffschlüssig verankert ist, während im anderen Griff (im sog. Lochteil) eine lösbare Verankerung mit Hilfe der Befestigungsschraube 30 vorgesehen ist. Auch die Längsnut 40 kann von der gezeichneten Kontur abweichen, vorzugsweise jedoch unter Anpassung an die Gestalt der einpreßbaren Spitze der Befestigungsschraube 30. Soferne diese eine Verdickung bzw. einen Wulst 26 aufweist, kann diese(r) auch eine andere Form haben, z.B. mit wenigstens einer Hinterschneidung. Die Erfindung zieht ferner in Betracht, die Längsschlitze 26, 26' und die Mitte der Längsnut 40 zueinander etwas zu versetzen, um eine zusätzliche Keilwirkung zu erzielen. Der Durchmesser d der Sacklöcher 28, 28' im Vierkantstift 14 kann auch kleiner sein, zweckmäßig jedoch in solcher Bemessung, daß die gegebenenfalls verengten Enden 24, 24' der Blattfeder 20 im Paß- oder Klemmsitz gehalten werden. Die Wellung 22 der Blattfeder 20 ist vorzugsweise so gewählt, daß letztere mit geringer Vorspannung zwischen der einen Seitenfläche 16 und den Vierkantlöchern der Griffhälse 12, 12' bzw. der Schloßnuß gehalten ist.Modifications not shown also fall within the scope of the invention, for example in such a way that the connecting pin 14 is anchored in one of the two handles 10, 10 ', for example by pinning or cohesively, while in the other handle (in the so-called hole part) there is a releasable anchoring Help of the fastening screw 30 is provided. The longitudinal groove 40 can also deviate from the drawn contour, but preferably with adaptation to the shape of the press-in tip of the fastening screw 30. If this has a thickening or a bulge 26, this can also have a different shape, for example with at least one an undercut. The invention further contemplates slightly displacing the longitudinal slots 26, 26 'and the center of the longitudinal groove 40 in order to achieve an additional wedge effect. The diameter d of the blind holes 28, 28 'in the square pin 14 can also be smaller, but expediently such that the constricted ends 24, 24' of the leaf spring 20 are held in a snug or clamped fit. The corrugation 22 of the leaf spring 20 is preferably chosen so that the latter is held with a slight preload between the one side surface 16 and the square holes of the handle necks 12, 12 'or the lock nut.

Sämtliche aus den Ansprüchen, der Beschreibung und der Zeichnung hervorgehenden Merkmale und Vorteile, einschließlich konstruktiver Einzelheiten, räumlicher Anordnungen und Verfahrensschritten, könnnen sowohl für sich als auch in den verschiedensten Kombinationen erfindungswesentlich sein.All of the features and advantages arising from the claims, the description and the drawing, including structural details, spatial arrangements and method steps, can be essential to the invention both individually and in the most varied of combinations.

Claims (6)

  1. A door handle fixing means having two door handles (10, 10') of which the handle sockets (12, 12') each have a square blind hold for the positive holding of a connecting rod (14) and on one lateral surface (16) of which there bears a slightly undulating leaf spring (20) which has angled-over ends (24, 24'), whereby at least on one of the two handles there is a conically ending fixing screw (30) adapted to be screwed into a radial screw-threaded hole (32) in the handle socket (12, 12') in order to secure the connecting rod (14) together with the leaf spring (20) in the square hole, characterised in that the connecting rod (14) has on one lateral surface (16) a continuous cross-sectionally V-shaped longitudinal slot (40) and at each end a blind hole (28, 28') having shoulders (42) to support the angled-over ends (24, 24') of the leaf spring (20), close to which the latter have in each case a longitudinal slot (26, 26') the width of which is smaller than a thickened portion (36) of the fixing screw (30).
  2. A fixing means according to Claim 1, characterised in that the blind hole diameter (d) is equal to or is almost equal to the width (b) of a shallow groove (18) disposed on one lateral surface (16), the depth (t) of which is substantially equal to the thickness of the material of the leaf spring (20).
  3. A fixing means according to Claim 1 or 2, characterised in that the longitudinal slots (26, 26') and the longitudinal slot (40) are disposed in alignment with one another and are in particular central in the leaf spring (20) or on one of the lateral surfaces (16) of the connecting rod.
  4. A fixing means according to one of Claims 1 to 3, characterised in that the slot walls assume in respect of each other a wedge angle (a) which is at least approximately equal to the opening angle (β) of the cone tip (34) of the fixing screw (30).
  5. A fixing means according to one of Claims 1 to 4, characterised in that the fixing screw (30) is a screw-threaded rod with an onion-shaped cone tip (34).
  6. A fixing means according to one of Claims 1 to 4, characterised in that the fixing screw (30) is a self-tapping screw.
EP90121396A 1990-01-08 1990-11-08 Fastening door handle to the spindle Expired - Lifetime EP0436795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90121396T ATE101228T1 (en) 1990-01-08 1990-11-08 DOOR HANDLE CONNECTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9000103U DE9000103U1 (en) 1990-01-08 1990-01-08 Door handle connection
DE9000103U 1990-01-08

Publications (3)

Publication Number Publication Date
EP0436795A2 EP0436795A2 (en) 1991-07-17
EP0436795A3 EP0436795A3 (en) 1991-09-25
EP0436795B1 true EP0436795B1 (en) 1994-02-02

Family

ID=6849837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90121396A Expired - Lifetime EP0436795B1 (en) 1990-01-08 1990-11-08 Fastening door handle to the spindle

Country Status (3)

Country Link
EP (1) EP0436795B1 (en)
AT (1) ATE101228T1 (en)
DE (2) DE9000103U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005000785U1 (en) * 2005-01-17 2006-05-24 Hoppe Ag, St Martin Operating handle for opening and closing of e.g. window, has square pin and locking device that is formed such that introduction of square pin into hand grip is effected in one direction and is blocked in opposite direction
EP1683933A2 (en) 2005-01-17 2006-07-26 Hoppe AG Actuation handle
EP2172606B2 (en) † 2008-10-06 2019-04-03 Burg-Wächter Kg Handle device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29910741U1 (en) * 1999-06-19 1999-09-23 Hoppe Ag, St Martin Pin connection
FR2820775B1 (en) * 2001-02-14 2003-09-12 Jean Louis Rousseaux STAND STAND INSERT FOR HANDLE AND HANDLE COMPRISING SUCH INSERT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1653967B1 (en) * 1967-04-25 1971-04-22 Engstfeld Wilh Fa Pusher-mandrel connection
FR2076269A5 (en) * 1970-01-07 1971-10-15 Lauzier Rene
DE2024652A1 (en) * 1970-05-21 1971-12-09 Heinrich Romberg Baubeschlag- und Metallwarenfabrik, 5860 Iserlohn Door handle connection
DE8605427U1 (en) * 1986-02-28 1986-12-11 Hoppe Gmbh & Co Kg, 35260 Stadtallendorf Door handle connection

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005000785U1 (en) * 2005-01-17 2006-05-24 Hoppe Ag, St Martin Operating handle for opening and closing of e.g. window, has square pin and locking device that is formed such that introduction of square pin into hand grip is effected in one direction and is blocked in opposite direction
EP1683933A2 (en) 2005-01-17 2006-07-26 Hoppe AG Actuation handle
US7686357B2 (en) 2005-01-17 2010-03-30 Hoppe Ag Operating mechanism
EP2172606B2 (en) † 2008-10-06 2019-04-03 Burg-Wächter Kg Handle device

Also Published As

Publication number Publication date
EP0436795A2 (en) 1991-07-17
ATE101228T1 (en) 1994-02-15
DE59004516D1 (en) 1994-03-17
DE9000103U1 (en) 1990-02-22
EP0436795A3 (en) 1991-09-25

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