EP0521490B1 - Arrangement of two construction elements telescopically connected together - Google Patents

Arrangement of two construction elements telescopically connected together Download PDF

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Publication number
EP0521490B1
EP0521490B1 EP19920111164 EP92111164A EP0521490B1 EP 0521490 B1 EP0521490 B1 EP 0521490B1 EP 19920111164 EP19920111164 EP 19920111164 EP 92111164 A EP92111164 A EP 92111164A EP 0521490 B1 EP0521490 B1 EP 0521490B1
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EP
European Patent Office
Prior art keywords
screw
groove
tip
accordance
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19920111164
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German (de)
French (fr)
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EP0521490A2 (en
EP0521490A3 (en
Inventor
Alexander Tzanovici
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Hewi Heinrich Wilke GmbH
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Hewi Heinrich Wilke GmbH
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Publication of EP0521490A3 publication Critical patent/EP0521490A3/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B1/00Knobs or handles for wings; Knobs, handles, or press buttons for locks or latches on wings
    • E05B1/0015Knobs or handles which do not operate the bolt or lock, e.g. non-movable; Mounting thereof
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00Fastening knobs or handles to lock or latch parts
    • E05B3/04Fastening the knob or the handle shank to the spindle by screws, springs or snap bolts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/85Knob-attaching devices
    • Y10T292/858Screw
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/70Interfitted members
    • Y10T403/7041Interfitted members including set screw

Definitions

  • the invention relates to an arrangement of two telescopically interconnected components, one of which has an externally accessible, through to the other component through bore, into which a screw is screwed, and the other in alignment with the bore one in the telescopic direction extending elongated groove, the depth of which increases from one end to the other in the telescopic direction.
  • Examples of such arrangements are door handles connected with a handle pin (DE-OS 24 15 905), rod systems with projecting metal connecting pins or plastic sleeves having metal sleeves which are to be connected axially to one another (DE-PS 26 32 696), or between two walls clampable support rods that contain a spreader pin (DE-PS 26 29 186).
  • a door handle connection with a handle mandrel which engages in the inner square of the neck of door handles and penetrates the inner square of a lock groove.
  • the handle mandrel consists of two right-angled cross-sectional longitudinal halves against which at least the pressure screw guided in the neck of the door handle can be tightened Each recess has a flat that forms a right angle with the side with which the longitudinal half faces the other longitudinal half.
  • a problem with the axial fixation of two telescopically interconnected components by means of a radial grub screw is that the surface contact between the screw and the groove is limited, in particular in the case of an elongated groove with a continuously increasing or decreasing depth, which limits the screw and the groove , whereby the screw and the groove are heavily loaded when trying to pull the two parts apart or push them together.
  • the aim of the invention is to provide an arrangement of two telescopically interconnected components of the type mentioned, in which the largest possible contact between the screw and the groove is always guaranteed regardless of the depth of the groove at the connection point.
  • This design ensures that at least one of the flanks of the groove, but preferably both flanks of the groove are in a theoretically linear, but practically flat contact with one another, so that the screw not only penetrates with its tip into the groove base, but the flank ( n) primarily establish the force-transmitting contact.
  • a roll-off effect is achieved by the lateral displacement of the screw and groove, which can be used for a targeted relative displacement of the two components.
  • a first embodiment of the invention is characterized by claim 2. So here both flanks of the groove are available for the power transmission from the screw.
  • the slope should be so small that when the screw is tightened, self-locking occurs in the sense that the telescopically connected components maintain their relative position when screwed in. For this reason, the slope of the bottom of the groove should be designed relative to the telescopic displacement direction according to claim 4.
  • Such an embodiment is suitable e.g. For fastening door handles to a handle pin, provided that only the relative position to the handle pin determined by sliding the handle should be maintained.
  • the slope of the groove can also be made so large that the screw screw slides down along the groove, the two telescopically connected components being displaced relative to one another in the telescopic displacement direction.
  • the slope must be much steeper and e.g. be chosen according to claim 6.
  • the two components can be clamped axially in one direction or the other by screwing in the screw.
  • the axial pull apart or pushing together of the components effectively avoided because of the much more steeply increasing groove here.
  • the pitch of the thread and the slope of the groove should be designed according to claim 7.
  • the screw should not get stuck in the groove when the flank begins to be touched, but should first perform the axial rolling movement. If the two components are then clamped to one another to the desired extent, for example by coming to rest against one another or against a stop, the screw can then be forcibly screwed in, whereby both flanks of the groove also come into contact by elastic or plastic deformation the conical tip of the screw.
  • the slope of the bottom of the groove should be chosen according to claim 8.
  • the rolling operation can only take place with a precisely conical tip by partially rubbing the conical tip on the flank.
  • the special embodiment according to claim 9 be provided.
  • the frictional connection between the conical tip and flank is axially limited.
  • the axial bracing of the two components can be further promoted by the measures of claim 10 by working not only with frictional engagement, but also with positive engagement between the conical tip and the associated flank.
  • the screw In order to attract as little attention as possible from the outside, the screw should be a grub screw, which should have an Allen key opening for transmitting the required clamping forces.
  • a hint of a door handle 11 which is only indicated, has an axial channel 21 with a square cross section, in which a handle pin 12 with a cross section complementary to the cross section of the axial channel 21 is arranged.
  • the lock nut not shown, is located in the direction of arrow 35, while the handle provided for actuation is provided in the direction of arrow 36.
  • a groove 17 is provided in the end region of the handle pin 12 facing away from the lock nut, which has in the direction of the axis 37 of the handle pin 12 the elongated shape which can be seen in particular from FIGS. 1 and 2 and essentially consists of two there are flanks 18, 19 arranged at an angle of 120 ° (FIG. 3) to one another.
  • the two flat flanks 18, 19 are thus arranged essentially in a V-shape with respect to one another and meet at the bottom in a base 20 forming an edge.
  • the neck of the door handle 11 and the handle pin 12 are telescopically displaceable in the direction of the axis 37.
  • the deepest end of the groove 17 facing the lock nut 35 is designed as a conical half-bore 17 '.
  • flanks 18, 19 merge directly into the surface 38 of the pusher pin 12 at this point. Since the flanks 18, 19 are arranged according to the invention in all cross sections at the same angle to one another, increasingly higher and vertically extending side flanks 17 ′′ are provided in the deeper regions of the groove 17.
  • the lever handle has a radial bore 13 provided with a thread 39, into which a grub screw 14 provided with an Allen key 34 is screwed with a flat conical tip 15.
  • the cone angle of the cone tip 15 is 120 ° and thus corresponds to the angle between the flat flanks 18, 19 of the groove 17.
  • the screw 14 is turned downwards by inserting an Allen key into the correspondingly designed polygonal opening 34 and turning the Allen key, the flanks 18, 19 of the groove 17 come with the cone tip 15 in a continuous engagement, while the foremost point 15 'of the tip 15 comes into contact with the groove base 20.
  • a comparatively large contact surface is created between the screw 14 and the pusher pin 12, especially when the screw 14 is made of hard material, the flanks 18, 19 and the base 20 of the groove 17 against it consist of soft material so that the tip 15 can dig somewhat into the material of the pusher pin 12.
  • a further possible slide-on position of the door handle 11 on the handle pin 12 is illustrated in dashed lines, where the screw 14 lies opposite a substantially deeper part of the groove 17.
  • the screw 14 must be screwed into the threaded bore 39 much deeper in order to come into contact with the flanks 18, 19 or the bottom 20 of the groove 17 which are lower at this point.
  • a flawless and comparatively large-area connection between the screw 14 and the handle pin 12 is also produced in the relative position between the door handle 11 and the handle pin 12, indicated in dashed lines.
  • the slope ⁇ is chosen so small in the embodiment of FIGS. 1 to 3 that the screw 14 can be tightened in any relative position of the door handle 11 and the handle pin 12 without the two parts being axially displaced relative to each other.
  • the slope ⁇ could also be made significantly steeper, for example by giving it a length of 45 °. In this case there would be no self-locking Enter more and the handle 11 would be moved as the screw 14 is screwed in progressively so that the screw 14 reaches ever deeper points in the groove 17. In this way, the door handle 11 and the handle pin 12 could be braced axially against each other.
  • the door handle 11 shown in cross section perpendicular to the axis of rotation 37 consists of an outer plastic jacket 11a and an inner metal jacket 11b.
  • the groove 17 in one square surface of the pusher pin 12 is formed in the same way as in FIGS. 1 to 3.
  • the axis 23 of the screw 14 is laterally displaced relative to the base 20 of the groove by a small piece 40, so that the conical tip 15 initially only with the Flank 18 of the groove 17 comes into engagement.
  • the approximately conical tip 15 can be of somewhat spherical or convex curvature according to FIG. 5, so that with the displacement 40 still present, the conical tip 15 along a limited axial circumferential region 24 on the flank 18 is present.
  • the convex curvature should be so slight that when the screw 14 is finally tightened, the tip 15 can dig into the softer material of the pusher pin 12 such that the tip 15 ultimately lies completely against the flanks 18, 19.
  • the limited peripheral area 24 can also be realized by a slightly protruding annular bead 41 on the conical tip 15, which then with the flank 18 comes into contact.
  • the bead 41 should, however, only protrude slightly beyond the conical tip 15 so that when the screw 14 is finally tightened, the bead 41 digs into the material of the pusher pin 12, so that, in this embodiment as well, the conical tip 15 ultimately completely on both flanks 18 , 19 comes to the plant.
  • projections 25 are provided on the outer circumference of the conical tip 15 at regular angular intervals, which, when the screw 14 is screwed in, either dig into the softer material of the trigger pin 12 or with corresponding depressions 26 provided in the flank 18 Work together like a gear connection.
  • the material of the pusher pin 12 should be so soft that the projections 25 can dig into the material of the groove 17.
  • a screwdriver slot 34 ' is provided in the screw 14 instead of the hexagon socket opening 34 according to FIGS. 1 to 4.
  • the size of the force transmission can be changed from the tool actuating the screw 14 to the push pin 12.
  • Fig. 10 shows a door leaf 31, on one side of which a lock 42 with a lock nut 43 is arranged, which is penetrated by a handle pin 12.
  • the handle 11 has the axial channel 21 for receiving the protruding end of the handle pin 12, in which the groove 17 according to the invention is provided, which lies radially opposite the screw 14 in the door handle 11, which is only indicated by dashed lines.
  • the opposite end of the handle pin 12 is fixed in the door handle 22 arranged on the other side of the door leaf 31.
  • the two lever handles 11, 22 are rotatably mounted with their necks in the usual manner in rosettes 44, 45, which are fixed to the door leaf 31 by screws 46, 47.
  • the groove 17 should be designed as flat as according to FIGS. 1 to 3 so that a self-locking takes place when the screw 14 is screwed in .
  • the axial bracing can be brought about not only by displacing the screw 14 relative to the groove 17 according to FIGS. 4 to 9, but also by a very steeply falling groove 17, as is the case in FIG. 11 is the case with the connecting pins 12 ".
  • U-shaped handles 49, 49 ' are attached to a door leaf 31 on opposite sides by means of the fastening according to the invention.
  • a connecting pin 12 ′ extends from the legs of the handle 49 on the left in FIG. 11 through through holes 32 in the door leaf 31 into an axial channel 21 ′ of the opposite handle 49 ′.
  • the end of the connecting pin 12 'located in the left handle 49 is provided with a thread 27 and can accordingly be screwed more or less deeply into a corresponding threaded bore 50 of the handle 49.
  • the end of the connecting pin 12 'protruding into the axial channel 21' has on one circumferential side the groove 17 according to the invention, into which the screw 14 screwed into the radial bore 13 engages.
  • the two handles 49, 49 ' can be clamped against one another or against the door leaf 31 by screwing in the screw 14. Because of the oblique design of the groove 17, an exercise of considerable tensile forces in the direction of the arrows K is made possible at the same time.
  • each handle 49, 49 ' consists of a plastic tube 29 with a metal inner tube 51 and a plastic jacket 28.
  • connecting pins 12 ′′ extend in both directions, which are firmly connected to the metal tube 51 and extend over the ends of the tubes 29 into axial channels 21 ′ of node elements 11 ′ axially adjoining the tubes 29, which also act as plastic tubes are formed with a plastic jacket 28 'and a solid metal core 51'.
  • the connecting pins 12 ′′ have the groove 17 according to the invention, into which the screw 14 is screwed.
  • the groove 17 at the end of the connecting pin 12 ′′ is designed to be substantially steeper than in the previous exemplary embodiments, so that the screws 14 screwed into the groove 17 are not self-lockingly clamped there, but instead exert an axial force A on the connecting pins 12 ′′ when they are screwed in , which leads to the fact that the node elements 11 'and the plastic tubes 29 are pressed against one another at 52. In this way, the node elements 11 'and the plastic tubes 29 can be clamped against one another with any desired axial clamping force.
  • This is important because plastic expands due to temperature and moisture influences and such an axial bracing must be brought about during manufacture that under 52 no gap (for example when the temperature drops) can open under any circumstances. It is important that only the plastic shells 28, 28 'but not the metal cores 51, 51' touch.
  • the axial bracing effect brought about by the bevel 17 can be caused by the lateral displacement of the Screw 14 and the groove 17 according to FIGS. 4 to 9 are further reinforced.
  • FIG. 12 shows the application of the invention to a support rod 11 ′′ which is to be arranged between two walls 33.
  • the support rod 11 ′′ consisting of a tubular metal core 51 ′′ and a surrounding plastic jacket 28 ′′, is supported at one end via an intermediate member 53 on one wall 33.
  • a projection 54 of the intermediate member 53 engages in a bore 55 of the wall.
  • a cylindrical expansion member 12 '' ' is axially displaceable in the sliding fit in the inner tube 51' ', which is designed as a hollow-cylindrical plastic body 58 with an embedded metal pin 59 of smaller diameter and with a facing 56 which extends beyond the support rod 11' '.
  • the metal pin 59 of the expansion member 12 '' 'protruding towards the wall 33 extends into a suitable bore 57 in the wall 33.
  • the screw 14 is screwed radially into the bore 13, due to the formation of the groove 17 according to FIGS 9 the expansion member 12 '''is successively extended in the direction of the wall 33.
  • the protruding end of the Metal pin 58 of the expansion member 12 '''in the bore 57, and the plastic body 58 rests against the wall 33, so that the support rod 11''is clamped between the two walls 33.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Lock And Its Accessories (AREA)
  • Ladders (AREA)
  • Tents Or Canopies (AREA)

Abstract

Two constructional elements (11, 12) connected telescopically to one another have a radial bore (13) equipped with a thread (39) and an axially descending groove (17). Screwed into the bore (13) is a grub screw (14), the conical tip (15) of which comes into engagement with the flanks (18, 19) of the groove (17), in order either to fix the two constructional elements (11, 12) relative to one another or to brace them axially relative to one another.

Description

Die Erfindung betrifft eine Anordnung aus zwei teleskopisch miteinander verbundenen Bauelementen, von denen das eine eine von außen zugängliche, bis zum anderen Bauelement durchgehende Bohrung mit Gewinde aufweist, in welche eine Schraube eingeschraubt ist, und das andere in Ausrichtung mit der Bohrung eine sich in Teleskopverschieberichtung erstreckende längliche Nut aufweist, deren Tiefe von einem zum anderen Ende in Teleskopverschieberichtung zunimmt.The invention relates to an arrangement of two telescopically interconnected components, one of which has an externally accessible, through to the other component through bore, into which a screw is screwed, and the other in alignment with the bore one in the telescopic direction extending elongated groove, the depth of which increases from one end to the other in the telescopic direction.

Beispiele für derartige Anordnungen sind mit einem Drückerstift verbundene Türdrücker (DE-OS 24 15 905), Stangensysteme mit vorstehende Metall-Verbindungsstifte bzw. Metallhülsen aufweisenden Kunststoffrohren, die axial miteinander zu verbinden sind (DE-PS 26 32 696), oder zwischen zwei Wänden einspannbare Tragstangen, die einen Spreizstift enthalten (DE-PS 26 29 186).Examples of such arrangements are door handles connected with a handle pin (DE-OS 24 15 905), rod systems with projecting metal connecting pins or plastic sleeves having metal sleeves which are to be connected axially to one another (DE-PS 26 32 696), or between two walls clampable support rods that contain a spreader pin (DE-PS 26 29 186).

Bei all diesen Anordnungen kommt es darauf an, nach dem Zusammenschieben der beiden Bauelemente eine bestimmte Relativposition zu fixieren. Dies kann z.B. bei Türdrückeranordnungen dadurch erfolgen, daß in eine radiale Gewindebohrung des Türdrückerhalses eine Madenschraube eingedreht wird, die in eine Ausnehmung am Ende des Drückerstiftes eingreift, der in den dazu komplementären Axialkanal des Drückerhalses eingeschoben ist (DE-OS 24 15 905). Durch Verjüngung der Ausnehmung in Abzugsrichtung des Drückerhalses kann auch gewährleistet stet werden, daß beim axialen Ziehen am Türdrücker der Widerstand gegen das Auseinanderziehen der beiden Türdrücker vergrößert wird.In all of these arrangements, it is important to fix a certain relative position after pushing the two components together. This can be done, for example, in door handle arrangements by screwing a grub screw into a radial threaded hole in the door handle neck, which grips into a recess at the end of the handle pin, which is inserted into the complementary axial channel of the handle neck (DE-OS 24 15 905). By tapering the recess in the trigger direction of the trigger neck can also be guaranteed be steady that the axial pull on the door handle increases the resistance to pulling the two door handles apart.

Es ist auch schon bekannt (DE-AS 26 01 759), eine radiale Madenschraube durch den Drückerhals hindurch in eine axiale Nut des Drückerstiftes einzuschrauben, wobei die Tiefe der Nut von der Schloßnuß axial nach außen abnimmt. Auch auf diese Weise wird ein erhöhter Widerstand gegen ein Abziehen der Türdrücker gewährleistet.It is also known (DE-AS 26 01 759) to screw a radial grub screw through the pusher neck into an axial groove of the pusher pin, the depth of the groove decreasing axially outward from the lock nut. In this way too, increased resistance to pulling off the door handles is ensured.

Weiterhin ist aus dem deutschen Gebrauchsmuster DE-U-81 23 148 eine Türdrückerverbindung mit einem Drückerdorn bekannt, der in Innenvierkante des Halses von Türdrückern eingreift und den Innenvierkant einer Schloßnut durchsetzt. Der Drückerdorn besteht dabei aus zwei rechtwinklige Querschnittsform aufweisenden Längshälften, gegen die mindestens die in dem Hals des einen Türdrückers geführte Druckschraube anziehbar ist, wobei die mit der mit einer kegelförmigen Spitze versehene Druckschraube in Wirkverbindung stehende eine Längshälfte des Drückerdornes an einer Außenseite vor jedem Ende in je einer Ausnehmung eine Abflachung aufweist, die mit der Seite, mit der die Längshälfte der anderen Längshälfte zugekehrt ist, einen rechten Winkel bildet.Furthermore, from the German utility model DE-U-81 23 148 a door handle connection with a handle mandrel is known which engages in the inner square of the neck of door handles and penetrates the inner square of a lock groove. The handle mandrel consists of two right-angled cross-sectional longitudinal halves against which at least the pressure screw guided in the neck of the door handle can be tightened Each recess has a flat that forms a right angle with the side with which the longitudinal half faces the other longitudinal half.

Schließlich aus dem deutschen Gebrauchsmuster DE-U 1 964 112 ein Türdrücker mit einer sich am Drückerdorn durch Eingraben verankernden, sich zum freien Ende in verjüngenden Befestigungsschraube bekannt, bei der der Drückerdorn in einer in Achsrichtung verlaufenden Bohrung eine radial federnd aufweitbare Spannbüchse aufweist, welche einen zur Befestigungsschraube hin offenliegenden Längsschlitz besitzt, an dessen Kanten sich die Flanken der Befestigungsschraube eingraben.Finally, from the German utility model DE-U 1 964 112, a door handle with a fastening screw which is anchored on the handle mandrel by digging and tapered towards the free end in a fastening screw, in which the handle pin has a radially resiliently expandable clamping sleeve in a bore running in the axial direction, which has a Longitudinal slot exposed to the fastening screw, on the edges of which the flanks of the fastening screw dig.

Ein Problem bei der axialen Fixierung zweier teleskopisch miteinander verbundener Bauelemente mittels einer radialen Madenschraube besteht darin, daß insbesondere bei einer länglichen Nut mit stetig ab- bzw. zunehmender Tiefe der Flächenkontakt zwischen der Schraube und der Nut begrenzt ist, wodurch die Schraube und der Nut begrenzt ist, wodurch die Schraube und die Nut beim Versuch, die beiden Teile auseinanderzuziehen bzw. zusammenzuschieben, stark belastet werden.A problem with the axial fixation of two telescopically interconnected components by means of a radial grub screw is that the surface contact between the screw and the groove is limited, in particular in the case of an elongated groove with a continuously increasing or decreasing depth, which limits the screw and the groove , whereby the screw and the groove are heavily loaded when trying to pull the two parts apart or push them together.

Das Ziel der Erfindung besteht darin, eine Anordnung aus zwei teleskopisch miteinander verbundenen Bauelementen der eingangs genannten Gattung zu schaffen, bei der unabhängig von der Tiefe der Nut an der Verbindungsstelle stets ein möglichst großflächiger Kontakt zwischen der Schraube und der Nut gewährleistet ist.The aim of the invention is to provide an arrangement of two telescopically interconnected components of the type mentioned, in which the largest possible contact between the screw and the groove is always guaranteed regardless of the depth of the groove at the connection point.

Zur Lösung dieser Aufgabe ist die Anordnung nach Patentanspruch 1 vorgesehen.To achieve this object, the arrangement according to claim 1 is provided.

Aufgrund dieser Ausbildung ist gewährleistet, daß zumindest eine der Flanken der Nut, vorzugsweise jedoch beide Flanken der Nut in einen theoretisch linienförmigen, praktisch jedoch flächenförmigen Kontakt miteinander stehen, so daß die Schraube nicht nur mit ihrer Spitze in den Nutgrund eindringt, sondern die Flanke(n) in erster Linie den kraftübertragenden Kontakt herstellen.This design ensures that at least one of the flanks of the groove, but preferably both flanks of the groove are in a theoretically linear, but practically flat contact with one another, so that the screw not only penetrates with its tip into the groove base, but the flank ( n) primarily establish the force-transmitting contact.

Erfindungsgemäß wird durch die seitliche Versetzung von Schraube und Nut ein Abrolleffekt erzielt, der zu einer gezielten Relativverschiebung der beiden Bauelemente herangezogen werden kann.According to the invention, a roll-off effect is achieved by the lateral displacement of the screw and groove, which can be used for a targeted relative displacement of the two components.

Eine erste Ausführungsform der Erfindung ist durch Patentanspruch 2 gekennzeichnet. Hier stehen also beide Flanken der Nut für die Kraftübertragung von der Schraube zur Verfügung.A first embodiment of the invention is characterized by claim 2. So here both flanks of the groove are available for the power transmission from the screw.

Die Schräge soll nach Anspruch 3 so gering sein, daß bei einem Festdrehen der Schraube eine Selbsthemmung in dem Sinne eintritt, daß die teleskopisch miteinander verbundenen Bauelemente ihre beim Eindrehen vorhandene Relativlage beibehalten. Aus diesem Grunde sollte die Schräge des Grundes der Nut relativ zur Teleskopverschieberichtung gemäß Anspruch 4 ausgebildet sein.According to claim 3, the slope should be so small that when the screw is tightened, self-locking occurs in the sense that the telescopically connected components maintain their relative position when screwed in. For this reason, the slope of the bottom of the groove should be designed relative to the telescopic displacement direction according to claim 4.

Eine derartige Ausführungsform eignet sich z.B. für die Befestigung von Türdrückern an einem Drückerstift, sofern lediglich die durch Aufschieben des Drückers bestimmte Relativposition zum Drückerstift beibehalten werden soll.Such an embodiment is suitable e.g. For fastening door handles to a handle pin, provided that only the relative position to the handle pin determined by sliding the handle should be maintained.

Die Schräge der Nut kann jedoch gemäß Anspruch 5 auch so groß gemacht werden, daß die eingedrehte Schraube entlang der Nut nach unten rutscht, wobei die beiden teleskopisch verbundenen Bauelemente in Teleskopverschieberichtung relativ zueinander verschoben werden. In diesem Falle muß die Schräge wesentlich steiler und z.B. nach Anspruch 6 gewählt sein.However, the slope of the groove can also be made so large that the screw screw slides down along the groove, the two telescopically connected components being displaced relative to one another in the telescopic displacement direction. In this case the slope must be much steeper and e.g. be chosen according to claim 6.

Bei der vorgenannten Ausführungsform können die beiden Bauelemente je nachdem, in welcher Richtung die Nut tiefer wird, axial in der einen oder anderen Richtung durch Eindrehen der Schraube verspannt werden. Auch bei dieser Ausführungsform ist das axiale Auseinanderziehen bzw. Zusammenschieben der Bauelemente wegen der hier sogar viel stärker ansteigenden Nut wirksam vermieden.In the aforementioned embodiment, depending on the direction in which the groove becomes deeper, the two components can be clamped axially in one direction or the other by screwing in the screw. In this embodiment, the axial pull apart or pushing together of the components effectively avoided because of the much more steeply increasing groove here.

Da bei dem erfindungs gemäßen Abrollvorgang die Schraube auch in ihrer Axialrichtung auf die Nut zu verschoben wird, sollen die Steigung des Gewindes und die Schräge der Nut gemäß Anspruch 7 ausgebildet sein. Mit anderen Worten soll sich die Schraube beim Beginn der Berührung der Flanke nicht schon in der Nut festklemmen, sondern zunächst die axiale Abrollbewegung ausführen. Wenn dann die beiden Bauelemente bis zu dem gewünschten Maße miteinander verspannt sind, in dem sie beispielsweise aneinander oder an einem Anschlag zur Anlage kommen, kann dann die Schraube gewaltsam weiter eingedreht werden, wobei durch elastische oder plastische Verformung auch beide Flanken der Nut zur Anlage an der konischen Spitze der Schraube kommen können.Since in the inventive rolling process the screw is also moved in its axial direction towards the groove, the pitch of the thread and the slope of the groove should be designed according to claim 7. In other words, the screw should not get stuck in the groove when the flank begins to be touched, but should first perform the axial rolling movement. If the two components are then clamped to one another to the desired extent, for example by coming to rest against one another or against a stop, the screw can then be forcibly screwed in, whereby both flanks of the groove also come into contact by elastic or plastic deformation the conical tip of the screw.

Bei der Ausführungsform nach Anspruch 7 sollte die Schräge des Grundes der Nut gemäß Anspruch 8 gewählt sein.In the embodiment according to claim 7, the slope of the bottom of the groove should be chosen according to claim 8.

Da die im wesentlichen konische Spitze der Schraube beim In-Eingriff-Kommen mit den ebenen Flanken je nach Radius unterschiedliche Umfangslängen aufweist, kann der Abrollvorgang bei einer exakt konischen Spitze nur unter teilweisem Reiben der konischen Spitze an der Flanke erfolgen. Um diese Reibungen minimal zu halten, kann die besondere Ausführungsform nach Anspruch 9 vorgesehen sein. Hierbei wird der Reibschluß zwischen konischer Spitze und Flanke axial begrenzt.Since the essentially conical tip of the screw has different circumferential lengths depending on the radius when it comes into engagement with the flat flanks, the rolling operation can only take place with a precisely conical tip by partially rubbing the conical tip on the flank. In order to keep this friction to a minimum, the special embodiment according to claim 9 be provided. Here, the frictional connection between the conical tip and flank is axially limited.

Die axiale Verspannung der beiden Bauelemente kann weiter durch die Maßnahmen des Anspruchs 10 gefördert werden, indem nicht nur mit Reibschluß, sondern auch mit Formschluß zwischen der konischen Spitze und der zugeordneten Flanke gearbeitet wird.The axial bracing of the two components can be further promoted by the measures of claim 10 by working not only with frictional engagement, but also with positive engagement between the conical tip and the associated flank.

Um von außen möglichst wenig aufzufallen, soll die Schraube gemäß Anspruch 11 eine Madenschraube sein, die zur Übertragung der erforderlichen Spannkräfte eine Imbusschlüssel-öffnung aufweisen sollte.In order to attract as little attention as possible from the outside, the screw should be a grub screw, which should have an Allen key opening for transmitting the required clamping forces.

Damit die Schraube sich in das Material der Nut 17 etwas einarbeiten kann, um den Reibschluß zu erhöhen, ist die Ausführungsform nach Anspruch 12 vorteilhaft.So that the screw can work something into the material of the groove 17 to increase the friction, the embodiment according to claim 12 is advantageous.

Vorteilhafte Anwendungen der Erfindung sind durch die Ansprüche 13 bis 15 gekennzeichnet.Advantageous applications of the invention are characterized by claims 13 to 15.

Die Erfindung wird im folgenden beispielsweise anhand der Zeichnung beschrieben; in dieser zeigt:

Fig. 1
die teilweise geschnittene Seitenansicht eines Ausschnittes eines an einem Drückerstift befestigten Türdrückers,
Fig. 2
eine Ansicht nur des Drückerstiftes nach Fig. 1 in Richtung des Pfeiles II in Fig. 1,
Fig. 3
einen Schnitt des Drückerstiftes nach Linie III-III in Fig. 1,
Fig. 4
einen Axialschnitt durch einen auf einem Drückerstift angeordneten Türdrückerhals mit einer gegenüber den Fig. 1 bis 3 modifizierten Befestigungsvorrichtung,
Fig. 5
einen zu Fig. 4 analogen, jedoch verqrößerten schematischen Schnitt einer gegenüber Fig. 4 modifizierten Ausführungsform,
Fig. 6
einen ähnlichen Schnitt wie Fig. 5 einer weiteren Ausführungsform,
Fig. 7
einen ähnlichen Schnitt wie Fig. 5 einer weiter abgewandelten Ausführungsform,
Fig. 8
eine Draufsicht nur auf den Drückerstift der Fig. 7 in Richtung des Pfeiles XIII in Fig. 7, jedoch in verkleinertem Maßstab,
Fig. 9
einen Schnitt nach Linie IX-IX in Fig. 7,
Fig. 10
eine schematische Schnittansicht einer Türdrückeranordnung mit der erfindungsgemäßen Befestigungsvorrichtung,
Fig. 11
eine schematische Schnittansicht zweier an einem Türblatt angeordneter Griffe, welche mittels der erfindungsgemäßen Befestigungsvorrichtung angebracht sind und aus Einzelteilen bestehen, die erfindungsgemäß miteinander verbunden sind, und
Fig. 12
eine schematische Schnittansicht einer zwischen zwei Wänden angeordneten Tragstange mit einer erfindungsgemäß ausgebildeten Spreizvorrichtung.
The invention is described below, for example with reference to the drawing; in this shows:
Fig. 1
the partially sectioned side view of a section of a door handle attached to a handle pin,
Fig. 2
1 in the direction of arrow II in FIG. 1,
Fig. 3
2 shows a section of the trigger pin according to line III-III in FIG. 1,
Fig. 4
3 shows an axial section through a door handle neck arranged on a handle pin with a fastening device modified compared to FIGS. 1 to 3,
Fig. 5
4 shows a schematic section, analogous to FIG. 4, but enlarged, of an embodiment modified compared to FIG. 4,
Fig. 6
5 shows a section similar to FIG. 5 of a further embodiment,
Fig. 7
5 shows a section similar to FIG. 5 of a further modified embodiment,
Fig. 8
7 in the direction of the arrow XIII in FIG. 7, but on a smaller scale,
Fig. 9
7 shows a section along line IX-IX in FIG. 7,
Fig. 10
2 shows a schematic sectional view of a lever handle arrangement with the fastening device according to the invention,
Fig. 11
is a schematic sectional view of two handles arranged on a door leaf, which are attached by means of the fastening device according to the invention and consist of individual parts that are interconnected according to the invention, and
Fig. 12
is a schematic sectional view of a support rod arranged between two walls with a spreading device designed according to the invention.

Nach Fig. 1 weist ein nur andeutungsweise dargestellter Hals eines Türdrückers 11 einen Axialkanal 21 mit quadratischem Querschnitt auf, in dem ein Drückerstift 12 mit zum Querschnitt des Axialkanals 21 komplementären Querschnitt angeordnet ist. Die nicht dargestellte Schloßnuß befindet sich in Richtung des Pfeiles 35, während der zur Betätigung vorgesehene Drücker in Richtung des Pfeiles 36 vorgesehen ist.According to FIG. 1, a hint of a door handle 11, which is only indicated, has an axial channel 21 with a square cross section, in which a handle pin 12 with a cross section complementary to the cross section of the axial channel 21 is arranged. The lock nut, not shown, is located in the direction of arrow 35, while the handle provided for actuation is provided in the direction of arrow 36.

Nach den Fig. 1 bis 3 ist in dem von der Schloßnuß abgewandten Endbereich des Drückerstiftes 12 eine Nut 17 vorgesehen, die in Richtung der Achse 37 des Drückerstiftes 12 die insbesondere aus den Fig. 1 und 2 ersichtliche längliche Form aufweist und im wesentlichen aus zwei unter einem Winkel von 120° (Fig. 3) zueinander angeordneten Flanken 18, 19 besteht. Die beiden ebenen Flanken 18, 19 sind also im wesentlichen V-förmig zueinander angeordnet und treffen sich unten in einem eine Kante bildenden Grund 20.According to FIGS. 1 to 3, a groove 17 is provided in the end region of the handle pin 12 facing away from the lock nut, which has in the direction of the axis 37 of the handle pin 12 the elongated shape which can be seen in particular from FIGS. 1 and 2 and essentially consists of two there are flanks 18, 19 arranged at an angle of 120 ° (FIG. 3) to one another. The two flat flanks 18, 19 are thus arranged essentially in a V-shape with respect to one another and meet at the bottom in a base 20 forming an edge.

Der Hals des Türdrückers 11 und der Drückerstift 12 sind in Richtung der Achse 37 relativ zueinander teleskopisch verschiebbar. Der Grund 20 der Nut 17 bildet mit der Teleskopverschieberichtung bzw. der Achse 37 einen Winkel α = 10°, so daß sich die Nut 17 in Richtung 35 zur Schloßnuß hin linear vertieft. Das der Schloßnuß 35 zugewandte tiefste Ende der Nut 17 ist als konische Halbbohrung 17' ausgebildet.The neck of the door handle 11 and the handle pin 12 are telescopically displaceable in the direction of the axis 37. The base 20 of the groove 17 forms an angle α = 10 ° with the telescopic displacement direction or the axis 37, so that the groove 17 deepens linearly in the direction 35 towards the lock nut. The deepest end of the groove 17 facing the lock nut 35 is designed as a conical half-bore 17 '.

Am flachsten Ende der Nut 17 gehen die Flanken 18, 19 unmittelbar in die Oberfläche 38 des Drückerstiftes 12 an dieser Stelle über. Da die Flanken 18, 19 erfindungsgemäß in allen Querschnitten unter dem gleichen Winkel zueinander angeordnet sind, sind in den tieferen Bereichen der Nut 17 zunehmend höhere und sich vertikal erstreckende Seitenflanken 17'' vorgesehen.At the flattest end of the groove 17, the flanks 18, 19 merge directly into the surface 38 of the pusher pin 12 at this point. Since the flanks 18, 19 are arranged according to the invention in all cross sections at the same angle to one another, increasingly higher and vertically extending side flanks 17 ″ are provided in the deeper regions of the groove 17.

Radial gegenüber der Nut 17 weist der Türdrücker eine mit Gewinde 39 versehene Radialbohrung 13 auf, in welche eine mit einer Imbusöffnung 34 versehene Madenschraube 14 mit einer flachen konischen Spitze 15 eingedreht ist. Der Konuswinkel der Konusspitze 15 beträgt 120° und entspricht damit dem Winkel zwischen den ebenen Flanken 18, 19 der Nut 17.Radially opposite the groove 17, the lever handle has a radial bore 13 provided with a thread 39, into which a grub screw 14 provided with an Allen key 34 is screwed with a flat conical tip 15. The cone angle of the cone tip 15 is 120 ° and thus corresponds to the angle between the flat flanks 18, 19 of the groove 17.

Wird in der aus Fig. 1 ersichtlichen Position des Türdrückers 11 relativ zum Türdrückerstift 12 die Schraube 14 durch Einstecken eines Imbusschlüssels in die entsprechend ausgebildete Mehrkantöffnung 34 und Drehen des Imbusschlüssels nach unten gedreht, so kommen die Flanken 18, 19 der Nut 17 mit der Konusspitze 15 in einen durchgehenden Eingriff, während der vorderste Punkt 15' der Spitze 15 in Anlage an dem Nutgrund 20 kommt. Durch entsprechendes Festschrauben der Schraube 14 wird somit eine vergleichsweise große Berührungsfläche zwischen der Schraube 14 und dem Drückerstift 12 geschaffen, und zwar vor allen Dingen dann, wenn die Schraube 14 aus hartem Material, die Flanken 18, 19 und der Grund 20 der Nut 17 dagegen aus weichem Material bestehen, so daß sich die Spitze 15 etwas in das Material des Drückerstiftes 12 eingraben kann.If, in the position of the door handle 11 shown in FIG. 1 relative to the door handle pin 12, the screw 14 is turned downwards by inserting an Allen key into the correspondingly designed polygonal opening 34 and turning the Allen key, the flanks 18, 19 of the groove 17 come with the cone tip 15 in a continuous engagement, while the foremost point 15 'of the tip 15 comes into contact with the groove base 20. By screwing the screw 14 accordingly, a comparatively large contact surface is created between the screw 14 and the pusher pin 12, especially when the screw 14 is made of hard material, the flanks 18, 19 and the base 20 of the groove 17 against it consist of soft material so that the tip 15 can dig somewhat into the material of the pusher pin 12.

In der in Fig. 1 in ausgezogenen Linien dargestellten Position befindet sich die Schraube 14 ziemlich am Anfang fang der Nut 17, wo diese noch vergleichsweise flach ist.In the position shown in solid lines in Fig. 1, the screw 14 is quite at the beginning catch the groove 17 where it is still comparatively flat.

In gestrichelten Linien ist eine weitere mögliche Aufschiebeposition des Türdrückers 11 auf den Drückerstift 12 veranschaulicht, wo die Schraube 14 einem wesentlich tieferen Teil der Nut 17 gegenüberliegt. In diesem Fall muß die Schraube 14 wesentlich tiefer in die Gewindebohrung 39 eingedreht werden, um mit den an dieser Stelle tieferliegenden Flanken 18, 19 bzw. dem Grund 20 der Nut 17 in Kontakt zu kommen. Durch Festziehen der Schraube 14 wird jedoch auch bei der in gestrichelten Linien angedeuteten Relativposition zwischen dem Türdrücker 11 und dem Drückerstift 12 eine einwandfreie und vergleichsweise großflächige Verbindung zwischen der Schraube 14 und dem Drückerstift 12 hergestellt.A further possible slide-on position of the door handle 11 on the handle pin 12 is illustrated in dashed lines, where the screw 14 lies opposite a substantially deeper part of the groove 17. In this case, the screw 14 must be screwed into the threaded bore 39 much deeper in order to come into contact with the flanks 18, 19 or the bottom 20 of the groove 17 which are lower at this point. By tightening the screw 14, however, a flawless and comparatively large-area connection between the screw 14 and the handle pin 12 is also produced in the relative position between the door handle 11 and the handle pin 12, indicated in dashed lines.

Aufgrund der Schräge α der Nut 17 wird auch gewährleistet, daß beim Ziehen am Drücker 11 in Richtung des Pfeiles 36 die bereits durch das Festziehen der Schraube 14 erfolgte Verbindung zwischen dem Türdrücker 11 und dem Drückerstift 12 eher noch fester wird, weil durch ein derartiges Ziehen die Spitze 15 in Richtung des Anstiegs der Nut 17 gezogen wird.Due to the bevel α of the groove 17, it is also ensured that when the handle 11 is pulled in the direction of arrow 36, the connection between the door handle 11 and the handle pin 12, which has already been made by tightening the screw 14, becomes rather stronger because of such a pull the tip 15 is pulled in the direction of the rise of the groove 17.

Die Schräge α ist bei dem Ausführungsbeispiel nach den Fig. 1 bis 3 so gering gewählt, daß die Schraube 14 in jeder Relativposition des Türdrückers 11 und des Drückerstiftes 12 festgezogen werden kann, ohne daß die beiden Teile relativ zueinander axial verschoben werden.The slope α is chosen so small in the embodiment of FIGS. 1 to 3 that the screw 14 can be tightened in any relative position of the door handle 11 and the handle pin 12 without the two parts being axially displaced relative to each other.

Die Schräge α könnte jedoch auch wesentlich steiler gemacht werden, indem man ihr beispielsweise eine Länge von 45° gibt. In diesem Fall würde keine Selbsthemmung mehr eintreten und der Drücker 11 würde beim zunehmenden Eindrehen der Schraube 14 so verschoben werden, daß die Schraube 14 zu immer tieferen Stellen der Nut 17 gelangt. Auf diese Weise könnten der Türdrücker 11 und der Drückerstift 12 axial gegeneinander verspannt werden.However, the slope α could also be made significantly steeper, for example by giving it a length of 45 °. In this case there would be no self-locking Enter more and the handle 11 would be moved as the screw 14 is screwed in progressively so that the screw 14 reaches ever deeper points in the groove 17. In this way, the door handle 11 and the handle pin 12 could be braced axially against each other.

In den folgenden Figuren bezeichnen gleiche Bezugszahlen entsprechende Bauelemente wie in den Figuren 1 bis 3.In the following figures, the same reference numbers denote corresponding components as in FIGS. 1 to 3.

Nach Fig. 4 besteht der im Querschnitt senkrecht zur Drehachse 37 dargestellte Türdrücker 11 aus einem äußeren Kunststoffmantel 11a und einem inneren Metallmantel 11b. Die Nut 17 in der einen Vierkantfläche des Drückerstiftes 12 ist genauso wie nach den Fig. 1 bis 3 ausgebildet. Im Unterschied zu der Ausführungsform nach den Fig. 1 bis 3 ist jedoch beim Ausführungsbeispiel nach Fig. 4 die Achse 23 der Schraube 14 relativ zum Grund 20 der Nut seitlich um ein kleines Stück 40 verschoben, so daß die konische Spitze 15 zunächst lediglich mit der Flanke 18 der Nut 17 in Eingriff kommt.4, the door handle 11 shown in cross section perpendicular to the axis of rotation 37 consists of an outer plastic jacket 11a and an inner metal jacket 11b. The groove 17 in one square surface of the pusher pin 12 is formed in the same way as in FIGS. 1 to 3. In contrast to the embodiment according to FIGS. 1 to 3, however, in the embodiment according to FIG. 4, the axis 23 of the screw 14 is laterally displaced relative to the base 20 of the groove by a small piece 40, so that the conical tip 15 initially only with the Flank 18 of the groove 17 comes into engagement.

Aus diesem Grunde rollt die konische Spitze 15 auf der Flanke 18 ab, wobei der Drückerstift 12 entsprechend in Axialrichtung verschoben wird. Das Gewinde der Schraube 14 ist nun so ausgebildet, daß bei einem Verdrehen der Schraube 14 der Drücker 11 bei der Darstellung nach Fig. 1 in Richtung des Pfeiles 35 weiter auf den Drückerstift 12 aufgeschoben wird, wobei die Schraube 14 entsprechend der zunehmenden Tiefe der Nut 17 immer tiefer in diese eindringt. Schlägt nun der üblicherweise am anderen Ende des Drückerstiftes 12 vorgesehene weitere Türdrücker oder ein sonstiger Anschlag am entgegengesetzten Türblatt an, so hört die gegenseitige Verspannungsbewegung des Drückers 11 und des Drückerstiftes 12 auf, und die Schraube 14 gräbt sich nun etwas in das Material der Flanke 18 ein, und zwar vorzugsweise so lange, bis auch die andere Flanke 19 in Eingriff mit der Konusspitze 15 kommt. Auf diese Weise wird die axiale Verspannung fixiert und auch ein Abziehen des Türdrückers 11 vom Drückerstift 12 in Richtung des Pfeiles 36 (Fig. 1) wirksam vermieden.For this reason, the conical tip 15 rolls on the flank 18, the pusher pin 12 being shifted accordingly in the axial direction. The thread of the screw 14 is now designed so that when the screw 14 is turned, the handle 11 in the illustration according to FIG. 1 is pushed further in the direction of the arrow 35 onto the handle pin 12, the screw 14 corresponding to the increasing depth of the groove 17 penetrates deeper into it. If the additional door handle or other stop that is usually provided at the other end of the handle pin 12 strikes the opposite door leaf, the other hears Bracing movement of the pusher 11 and the pusher pin 12, and the screw 14 now digs a little into the material of the flank 18, preferably until the other flank 19 comes into engagement with the cone tip 15. In this way, the axial bracing is fixed and a pulling off of the door handle 11 from the handle pin 12 in the direction of arrow 36 (FIG. 1) is effectively avoided.

Da der Umfang der konischen Spitze 15 sich vom vordersten Punkt 15' nach hinten ständig erweitert, kann bei einer exakt konischen Ausbildung der Spitze 15 gemäß Fig. 4 eine geometrisch einwandfreie Abrollbewegung auf der Flanke 18 nicht stattfinden. Zwischen bestimmten Bereichen der Spitze 15 und der Flanke 18 kommt es tatsächlich auch zu gewissen reibenden Relativverschiebungen. Insgesamt findet aber auch bei der exakt konischen Ausbildung der Spitze 15 eine die axiale Verspannung gewährleistende Abrollbewegung statt.Since the circumference of the conical tip 15 widens continuously from the foremost point 15 ′ to the rear, a geometrically perfect rolling movement on the flank 18 cannot take place with an exactly conical configuration of the tip 15 according to FIG. 4. Between certain areas of the tip 15 and the flank 18 there are actually certain rubbing relative displacements. Overall, however, even with the precisely conical design of the tip 15, a rolling movement that ensures the axial bracing takes place.

Um jedoch eine geometrisch einwandfreie Abrollbewegung zu erzielen, kann nach Fig. 5 die annähernd konische Spitze 15 etwas ballig bzw. konvex gekrümmt ausgebildet sein, so daß bei nach wie vor vorhandener Versetzung 40 die konische Spitze 15 entlang eines begrenzten axialen Umfangsbereiches 24 an der Flanke 18 anliegt. Die konvexe Krümmung soll jedoch so gering sein, daß beim endgültigen Festziehen der Schraube 14 die Spitze 15 sich so in das weichere Material des Drückerstiftes 12 eingraben kann, daß die Spitze 15 letztlich vollständig an den Flanken 18, 19 anliegt.However, in order to achieve a geometrically perfect rolling movement, the approximately conical tip 15 can be of somewhat spherical or convex curvature according to FIG. 5, so that with the displacement 40 still present, the conical tip 15 along a limited axial circumferential region 24 on the flank 18 is present. However, the convex curvature should be so slight that when the screw 14 is finally tightened, the tip 15 can dig into the softer material of the pusher pin 12 such that the tip 15 ultimately lies completely against the flanks 18, 19.

Nach Fig. 6 kann der begrenzte Umfangsbereich 24 auch durch einen nur wenig vorstehenden Ringwulst 41 an der konischen Spitze 15 realisiert werden, welcher dann mit der Flanke 18 in Anlage kommt. Der Wulst 41 sollte aber nur so geringfügig über die konische Spitze 15 vorstehen, daß beim endgültigen Festziehen der Schraube 14 der Wulst 41 sich in das Material des Drückerstiftes 12 eingräbt, so daß letztlich auch bei diesem Ausführungsbeispiel die konische Spitze 15 vollständig an beiden Flanken 18, 19 zur Anlage kommt.6, the limited peripheral area 24 can also be realized by a slightly protruding annular bead 41 on the conical tip 15, which then with the flank 18 comes into contact. The bead 41 should, however, only protrude slightly beyond the conical tip 15 so that when the screw 14 is finally tightened, the bead 41 digs into the material of the pusher pin 12, so that, in this embodiment as well, the conical tip 15 ultimately completely on both flanks 18 , 19 comes to the plant.

Bei dem Ausführungsbeispiel nach den Fig. 7 bis 9 sind am Außenumfang der konischen Spitze 15 in gleichmäßigen Winkelabständen Vorsprünge 25 vorgesehen, welche sich beim Eindrehen der Schraube 14 entweder in das weichere Material des Drückerstiftes 12 eingraben oder mit in der Flanke 18 vorgesehenen entsprechenden Vertiefungen 26 nach Art einer Zahnradverbindung zusammenarbeiten.In the exemplary embodiment according to FIGS. 7 to 9, projections 25 are provided on the outer circumference of the conical tip 15 at regular angular intervals, which, when the screw 14 is screwed in, either dig into the softer material of the trigger pin 12 or with corresponding depressions 26 provided in the flank 18 Work together like a gear connection.

Auf diese Weise wird beim Eindrehen der Schraube 14 eine noch stärkere axiale Verspannungskraft auf den Drückerstift 12 übertragen. Damit jedoch nach Herstellung der gewünschten Verspannung die Schraube 14 noch weiter bis zur Berührung auch der Flanke 19 eingedreht werden kann, sollte das Material des Drückerstiftes 12 so weich sein, daß sich die Vorsprünge 25 in das Material der Nut 17 eingraben können.In this way, when the screw 14 is screwed in, an even stronger axial tensioning force is transmitted to the trigger pin 12. However, so that the screw 14 can be screwed in even further until the flank 19 is touched after the desired bracing has been produced, the material of the pusher pin 12 should be so soft that the projections 25 can dig into the material of the groove 17.

Bei den Ausführungsbeispielen nach den Fig. 5 und 6 ist statt der Imbus-Mehrkantöffnung 34 nach den Fig. 1 bis 4 ein Schraubenzieherschlitz 34' in der Schraube 14 vorgesehen.In the exemplary embodiments according to FIGS. 5 and 6, a screwdriver slot 34 'is provided in the screw 14 instead of the hexagon socket opening 34 according to FIGS. 1 to 4.

Durch Anordnung des Umfangsbereiches 24 nach Fig. 5, des Ringwulstes 41 nach Fig. 6 bzw. des Ringes von Vorsprüngen 25 in verschiedenen axialen Höhen der Spitze 15 kann die Größe der Kraftübertragung von dem die Schraube 14 betätigenden Werkzeug auf den Drückerstift 12 verändert werden. Je tiefer der Umfangsbereich 24 bzw. der Ring von Vorsprüngen 25 an der Spitze 15 angeordnet ist, eine um so größere axiale Verspannkraft kann mit dem Werkzeug übertragen werden. Entsprechend wird auch das Eingraben der konischen Spitze 15 in das Material der Nut 17 begünstigt.By arranging the peripheral area 24 according to FIG. 5, the annular bead 41 according to FIG. 6 or the ring of projections 25 at different axial heights of the tip 15, the size of the force transmission can be changed from the tool actuating the screw 14 to the push pin 12. The deeper the peripheral region 24 or the ring of projections 25 is arranged on the tip 15, an even greater axial clamping force can be transmitted with the tool. Accordingly, digging the conical tip 15 into the material of the groove 17 is also favored.

Fig. 10 zeigt ein Türblatt 31, an dessen einer Seite ein Schloß 42 mit einer Schloßnuß 43 angeordnet ist, die von einem Drückerstift 12 durchgriffen ist. Der Drücker 11 weist den Axialkanal 21 zur Aufnahme des vorstehenden Endes des Drückerstiftes 12 auf, in dem die erfindungsgemäße Nut 17 vorgesehen ist, der radial gegenüber die nur gestrichelt angedeutete Schraube 14 im Türdrücker 11 liegt. Das entgegengesetzte Ende des Drückerstiftes 12 ist fest in dem auf der anderen Seite des Türblattes 31 angeordneten Türdrücker 22 festgelegt.Fig. 10 shows a door leaf 31, on one side of which a lock 42 with a lock nut 43 is arranged, which is penetrated by a handle pin 12. The handle 11 has the axial channel 21 for receiving the protruding end of the handle pin 12, in which the groove 17 according to the invention is provided, which lies radially opposite the screw 14 in the door handle 11, which is only indicated by dashed lines. The opposite end of the handle pin 12 is fixed in the door handle 22 arranged on the other side of the door leaf 31.

Die beiden Türdrücker 11, 22 sind mit ihren Hälsen in üblicher Weise in Rosetten 44, 45 drehgelagert, die durch Schrauben 46, 47 am Türblatt 31 festgelegt sind.The two lever handles 11, 22 are rotatably mounted with their necks in the usual manner in rosettes 44, 45, which are fixed to the door leaf 31 by screws 46, 47.

Nachdem zwischen dem Hals des Türdrückers 22 und der Schloßnuß 43 eine Schraubenfeder 48 angeordnet ist, soll bei dem Ausführungsbeispiel nach Fig. 10 die Nut 17 so flach wie nach den Fig. 1 bis 3 ausgebildet sein, damit beim Eindrehen der Schraube 14 eine Selbsthemmung stattfindet.After a helical spring 48 is arranged between the neck of the door handle 22 and the lock nut 43, in the exemplary embodiment according to FIG. 10 the groove 17 should be designed as flat as according to FIGS. 1 to 3 so that a self-locking takes place when the screw 14 is screwed in .

Man könnte jedoch auch die Schraubenfeder 48 fortlassen und den Hals des Türdrückers 22 unmittelbar an der Schloßnuß 43 anliegen lassen. In diesem Fall könnte durch Benutzung der Ausführungsform nach den Fig. 4 bis 9 auch eine axiale Verspannung der beiden Türdrücker 11, 22 herbeigeführt werden.However, one could also omit the coil spring 48 and let the neck of the door handle 22 rest directly on the lock nut 43. In this case, an axial bracing of the two door handles 11, 22 could also be brought about by using the embodiment according to FIGS. 4 to 9.

Die axiale Verspannung kann jedoch - wie bereits oben erwähnt wurde - nicht nur durch die Versetzung der Schraube 14 relativ zur Nut 17 gemäß den Fig. 4 bis 9, sondern auch durch eine sehr steil abfallende Nut 17 herbeigeführt werden, wie das in Fig. 11 bei den Verbindungsstiften 12" der Fall ist.However, as already mentioned above, the axial bracing can be brought about not only by displacing the screw 14 relative to the groove 17 according to FIGS. 4 to 9, but also by a very steeply falling groove 17, as is the case in FIG. 11 is the case with the connecting pins 12 ".

Fig. 11 gibt zwei unterschiedliche Ausführungsbeispiele der Erfindung wieder.11 shows two different exemplary embodiments of the invention.

An einem Türblatt 31 sind auf entgegengesetzten Seiten U-förmige Haltegriffe 49, 49' mittels der erfindungsgemäßen Befestigung angebracht. Zu diesem Zweck erstreckt sich von den Schenkeln des in Fig. 11 linken Handgriffs 49 ein Verbindungsstift 12' durch Durchgangslöcher 32 im Türblatt 31 hindurch in einen Axialkanal 21' des gegenüberliegenden Handgriffs 49'. Das im linken Handgriff 49 befindliche Ende des Verbindungsstiftes 12' ist mit einem Gewinde 27 versehen und kann dementsprechend mehr oder weniger tief in eine entsprechende Gewindebohrung 50 des Handgriffs 49 eingeschraubt werden.U-shaped handles 49, 49 'are attached to a door leaf 31 on opposite sides by means of the fastening according to the invention. For this purpose, a connecting pin 12 ′ extends from the legs of the handle 49 on the left in FIG. 11 through through holes 32 in the door leaf 31 into an axial channel 21 ′ of the opposite handle 49 ′. The end of the connecting pin 12 'located in the left handle 49 is provided with a thread 27 and can accordingly be screwed more or less deeply into a corresponding threaded bore 50 of the handle 49.

Das in den Axialkanal 21' vorstehende Ende des Verbindungsstiftes 12' weist an einer Umfangsseite die erfindungsgemäße Nut 17 auf, in welche die in die Radialbohrung 13 eingedrehte Schraube 14 eingreift.The end of the connecting pin 12 'protruding into the axial channel 21' has on one circumferential side the groove 17 according to the invention, into which the screw 14 screwed into the radial bore 13 engages.

Aufgrund einer Ausbildung der Nut 17 gemäß den Fig. 4 bis 9 können die beiden Haltegriffe 49, 49' durch Eindrehen der Schraube 14 gegeneinander bzw. gegen das Türblatt 31 verspannt werden. Wegen der schrägen Ausbildung der Nut 17 wird gleichzeitig eine Ausübung erheblicher Zugkräfte in Richtung der Pfeile K ermöglicht.Due to the formation of the groove 17 according to FIGS. 4 to 9, the two handles 49, 49 'can be clamped against one another or against the door leaf 31 by screwing in the screw 14. Because of the oblique design of the groove 17, an exercise of considerable tensile forces in the direction of the arrows K is made possible at the same time.

Erfindungsgemäß besteht jeder Haltegriff 49, 49' aus einem Kunststoffrohr 29 mit einem Metallinnenrohr 51 und einem Kunststoffmantel 28.According to the invention, each handle 49, 49 'consists of a plastic tube 29 with a metal inner tube 51 and a plastic jacket 28.

Von den Enden der Rohre 29 erstrecken sich in beiden Richtungen fest mit dem Metallrohr 51 verbundene Verbindungsstifte 12'', welche über die Enden der Rohre 29 bis in Axialkanäle 21' von an die Rohre 29 axial anschließenden Knotenelementen 11' reichen, die ebenfalls als Kunststoffrohre mit einem Kunststoffmantel 28' und einem massiven Metallkern 51' ausgebildet sind. Dort weisen die Verbindungsstifte 12'' die erfindungsgemäße Nut 17 auf, in welche die Schraube 14 eingedreht ist.From the ends of the tubes 29, connecting pins 12 ″ extend in both directions, which are firmly connected to the metal tube 51 and extend over the ends of the tubes 29 into axial channels 21 ′ of node elements 11 ′ axially adjoining the tubes 29, which also act as plastic tubes are formed with a plastic jacket 28 'and a solid metal core 51'. There, the connecting pins 12 ″ have the groove 17 according to the invention, into which the screw 14 is screwed.

Erfindungsgemäß ist die Nut 17 am Ende der Verbindungsstift 12'' wesentlich steiler als bei den vorangehenden Ausführungsbeispielen ausgebildet, so daß die in die Nut 17 eingedrehten Schrauben 14 dort nicht selbsthemmend festgeklemmt werden, sondern beim Eindrehen eine Axialkraft A auf die Verbindungsstifte 12'' ausüben, welche dazu führt, daß die Knotenelemente 11' und die Kunststoffrohre 29 bei 52 gegeneinander gepreßt werden. Auf diese Weise können die Knotenelemente 11' und die Kunststoffrohre 29 mit jeder gewünschten axialen Spannkraft gegeneinander verspannt werden. Dies ist wichtig, weil sich Kunststoff durch Temperatur- und Feuchtigkeitseinflüsse ausdehnt und bei der Herstellung eine solche axiale Verspannung herbeigeführt werden muß, daß sich bei 52 unter keinen Umständen (beispielsweise bei Temperaturerniedrigung) ein Spalt öffnen kann. Wichtig ist, daß sich nur die Kunststoffmäntel 28, 28', nicht jedoch die Metallkerne 51, 51' berühren.According to the invention, the groove 17 at the end of the connecting pin 12 ″ is designed to be substantially steeper than in the previous exemplary embodiments, so that the screws 14 screwed into the groove 17 are not self-lockingly clamped there, but instead exert an axial force A on the connecting pins 12 ″ when they are screwed in , which leads to the fact that the node elements 11 'and the plastic tubes 29 are pressed against one another at 52. In this way, the node elements 11 'and the plastic tubes 29 can be clamped against one another with any desired axial clamping force. This is important because plastic expands due to temperature and moisture influences and such an axial bracing must be brought about during manufacture that under 52 no gap (for example when the temperature drops) can open under any circumstances. It is important that only the plastic shells 28, 28 'but not the metal cores 51, 51' touch.

Der durch die Schräge 17 herbeigeführte axiale Verspannungseffekt kann durch die seitliche Versetzung der Schraube 14 und der Nut 17 gemäß den Fig. 4 bis 9 noch verstärkt werden.The axial bracing effect brought about by the bevel 17 can be caused by the lateral displacement of the Screw 14 and the groove 17 according to FIGS. 4 to 9 are further reinforced.

In Fig. 12 ist die Anwendung der Erfindung bei einer Tragstange 11'' wiedergegeben, die zwischen zwei Wänden 33 angeordnet werden soll.12 shows the application of the invention to a support rod 11 ″ which is to be arranged between two walls 33.

Die aus einem rohrförmigen Metallkern 51'' und einem umgebenden Kunststoffmantel 28'' bestehende Tragstange 11'' ist an einem Ende über ein Zwischenglied 53 an der einen Wand 33 gelagert. Ein Vorsprung 54 des Zwischengliedes 53 greift dabei in eine Bohrung 55 der Wand ein.The support rod 11 ″, consisting of a tubular metal core 51 ″ and a surrounding plastic jacket 28 ″, is supported at one end via an intermediate member 53 on one wall 33. A projection 54 of the intermediate member 53 engages in a bore 55 of the wall.

Am entgegengesetzten Ende ist in dem Innenrohr 51'' ein zylindrisches Spreizglied 12''' im Gleitsitz axial verschiebbar angeordnet, das als hohlzylindrischer Kunststoffkörper 58 mit eingelagertem Metallstift 59 kleineren Durchmessers sowie mit einer die Tragstange 11'' außen übergreifenden Verblendung 56 ausgebildet ist.At the opposite end, a cylindrical expansion member 12 '' 'is axially displaceable in the sliding fit in the inner tube 51' ', which is designed as a hollow-cylindrical plastic body 58 with an embedded metal pin 59 of smaller diameter and with a facing 56 which extends beyond the support rod 11' '.

In dem Kunststoffkörper 58 befindet sich die erfindungsgemäße Nut 17, in die eine Schraube 14 eingreift, die in die Radialbohrung 13 der Tragstange 11' eingedreht ist.In the plastic body 58 there is the groove 17 according to the invention, in which a screw 14 engages, which is screwed into the radial bore 13 of the support rod 11 '.

Der zur Wand 33 vorstehende Metallstift 59 des Spreizgliedes 12''' erstreckt sich in eine passende Bohrung 57 der Wand 33.The metal pin 59 of the expansion member 12 '' 'protruding towards the wall 33 extends into a suitable bore 57 in the wall 33.

Nachdem bei eingezogenem Spreizglied 12''' und herausgedrehter Schraube 14 die Tragstange 11'' zwischen die beiden Wände 33 gebracht worden ist, wird die Schraube 14 radial in die Bohrung 13 eingedreht, wobei aufgrund der Ausbildung der Nut 17 gemäß den Fig. 4 bis 9 das Spreizglied 12''' sukzessive in Richtung der Wand 33 ausgefahren wird. Dabei dringt das vorstehende Ende des Metallstiftes 58 des Spreizgliedes 12''' in die Bohrung 57 ein, und der Kunststoffkörper 58 legt sich an die Wand 33 an, so daß die Tragstange 11'' zwischen den beiden Wänden 33 verspannt wird.After the support rod 11 ″ has been brought between the two walls 33 with the spreading member 12 ″ ″ and the screw 14 unscrewed, the screw 14 is screwed radially into the bore 13, due to the formation of the groove 17 according to FIGS 9 the expansion member 12 '''is successively extended in the direction of the wall 33. The protruding end of the Metal pin 58 of the expansion member 12 '''in the bore 57, and the plastic body 58 rests against the wall 33, so that the support rod 11''is clamped between the two walls 33.

Claims (15)

  1. Assembly comprising two components (11, 12) which are telescopically connected to one another wherein one of said components (11) has an externally accessible bore (13) with a thread (16) which extends up to the other component (12) perpendicular to the direction of telescoping, with a screw (14) with an at least substantially conical tip (15) being screwed into the bore, wherein the other said component (12) has, in alignment with the bore (13), an elongate groove (14) with a cross-section complementary to the conical tip (15) of the screw (14), characterised in that the other component 12 is made in one piece; in that the elongate groove (17) has a depth which increases from one end to the other end in the direction of telescoping and in which the screw (14) engages to such a depth that the conical tip (15) presses at least against one of the two flanks (18, 19), in that the tip (15) of the screw (14) and the base (20) of the groove (17) are fractionally offset transverse to the direction of telescoping and to the axis of the bore (13) so that on turning in the screw (14) its tip (15) contacts just one flank (18) of the groove (17), and indeed that flank of the groove which, on turning the screw (14) inwardly, is displaced relative to the component (11) containing the screw (14) in that telescoping direction in which the depth of the groove (17) increases due to the conical tip (15) of the screw rolling off against it.
  2. Assembly in accordance with claim 1, in which the tip (15) of the screw (14) and the base (20) of the groove (17) are aligned and the conical tip (15) of the turned-in screw (14) presses against both flanks (18, 19) and preferably also against the base (20) of the groove (17).
  3. Assembly in accordance with claim 2, in which the inclination of the base (20) of the groove (17) is only so large that on turning in the screw (14) self-locking still occurs.
  4. Assembly in accordance with claim 3, in which the inclination (α) of the base (20) of the groove (17) is greater than 5° and smaller than 10°, and preferably smaller than 20°.
  5. Assembly in accordance with claim 2, in which the inclination (α) of the groove (17) is so large that on turning in the screw (14) its tip (15) slides down the inclination (α) of the groove (17) and thereby correspondingly telescopically displaces the components (11, 12) into one another.
  6. Assembly in accordance with claim 5, in which the inclination (α) is larger than 30° and smaller than 60°, and is in particular smaller than 45°.
  7. Assembly in accordance with one of the preceding claims, in which the pitch of the thread (16) and the inclination (α) of the base (20) of the groove (17) are so matched to one another that on turning in the screw (14) the tip (15) of the screw (14) moves in the direction of the base (20) of the groove (17) at least by the amount by which the groove (17) becomes deeper through the displacement in the telescoping direction.
  8. Assembly in accordance with claim 7, in which the inclination (α) of the base (20) of the groove amounts to 10° to 30° and in particular to approximately 20°.
  9. Assembly in accordance with claim 7, in which the tip (15) of the screw (14) and/or the flanks (18, 19) of the groove (17) are at least partly convexly curved in cross-section perpendicular to the telescoping direction in such a way that on turning in the screw (14) essentially only a restricted peripheral region (24) of the tip (15) in the direction of the screw axis (23) comes into engagement with the associated flank (18).
  10. Assembly in accordance with one of the preceding claims, in which engagement means (25, 26) are provided along the periphery of the tip (15) or along a restricted peripheral region (24) of the tip (15) and/or in the flank (18) on which the tip (15) acts and ensure in the telescoping direction an at least partial form fitted connection of the tip (15) and the flank (18).
  11. Assembly in accordance with one of the claims, in which the screw is a grub screw (14) which is preferably actuatable by an Imbus key.
  12. Assembly in accordance with one of the preceding claims, in which the screw (14) is harder, at least in the region of its tip (15) than the flanks (18, 19) of the groove (17).
  13. Assembly in accordance with one of the preceding claims, in which the two components which are telescopically connected to one another are a door handle (11) with a non-round axial channel (21) and with the bore (13) which has the screw (14) and a door handle shaft (12) which is complementary to the axial channel (21) and which has the groove (17).
  14. Assembly in accordance with one of the claims 1 to 12, in which the two components which are telescopically connected together are a plastic tube (11'), which preferably has a tubular or solid metal core (51') and is provided with at least one axial channel (21') and has the bore (13) with the screw (14) at least at one end in the region of the axial channel (21'), and a connecting shaft (12', 12"), complementary to the axial channel (21) which has the groove (17) and projects axially from a further plastic tube, preferably a plastic tube having a tubular or solid metal core (51, 51'), and wherein the two plastic tubes (11', 29) directly contact one another axially or are arranged on opposite sides of a leaf, in particular a door leaf (31) having corresponding through apertures (32) and are also secured relative to one another by turning the screw (14) into the groove (17), at least in accordance with the claims 2 to 4, and preferably however mutually clamped against each other in accordance with one of the claims to 5 to 13.
  15. Assembly in accordance with one of the claims 1 to 12, in which the two components which are telescopically connected to one another are a bar (11") which can be inserted between two walls (33), has an axial channel at at least one end and at least one bore (13) with the screw (14), and a spreading member (12"') complementary to the axial channel (21"), which has the groove (17).
EP19920111164 1991-07-01 1992-07-01 Arrangement of two construction elements telescopically connected together Expired - Lifetime EP0521490B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121770 1991-07-01
DE19914121770 DE4121770A1 (en) 1991-07-01 1991-07-01 ARRANGEMENT OF TWO TELESCOPICALLY CONNECTED COMPONENTS

Publications (3)

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EP0521490A2 EP0521490A2 (en) 1993-01-07
EP0521490A3 EP0521490A3 (en) 1993-03-03
EP0521490B1 true EP0521490B1 (en) 1996-02-28

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EP19920111164 Expired - Lifetime EP0521490B1 (en) 1991-07-01 1992-07-01 Arrangement of two construction elements telescopically connected together

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US (1) US5228798A (en)
EP (1) EP0521490B1 (en)
AT (1) ATE134736T1 (en)
CA (1) CA2072859A1 (en)
DE (2) DE4121770A1 (en)

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Also Published As

Publication number Publication date
US5228798A (en) 1993-07-20
DE4121770A1 (en) 1993-01-07
CA2072859A1 (en) 1993-01-02
EP0521490A2 (en) 1993-01-07
ATE134736T1 (en) 1996-03-15
DE59205441D1 (en) 1996-04-04
EP0521490A3 (en) 1993-03-03

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