EP0534103B1 - Pivot bearings, especially for air guide vanes of air nozzles - Google Patents
Pivot bearings, especially for air guide vanes of air nozzles Download PDFInfo
- Publication number
- EP0534103B1 EP0534103B1 EP92113401A EP92113401A EP0534103B1 EP 0534103 B1 EP0534103 B1 EP 0534103B1 EP 92113401 A EP92113401 A EP 92113401A EP 92113401 A EP92113401 A EP 92113401A EP 0534103 B1 EP0534103 B1 EP 0534103B1
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- Prior art keywords
- bearing
- spigots
- pivot
- frame
- sides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
Definitions
- the invention relates to a pivot bearing for pivot elements mounted on a frame so as to be pivotable about a pivot axis, in which bearing pins projecting from the pivot elements on both sides are clipped into bearing recesses which are open on one side and opposite frame sides associated with one another.
- the invention relates to swivel bearings for the air guide elements in air nozzles.
- Pivot bearings of this type are already known in the case of air nozzles designed as plastic parts with air guiding elements which can be pivoted between a closed and a maximum opening position and can be adjusted in any position between the aforementioned end positions.
- Such a pivot bearing for the air guiding elements in air nozzles is described in GB-A-2 108 263, in which opposite longitudinal sides of a frame designed as a plastic injection-molded part are equipped with bearing recesses which consist of fork-like projections with complementary bearing catches in the region of their free ends and serve to clip in the journals of the air guiding elements.
- pivot bearings of the type and intended use known in which bearing brackets with bearing recesses are arranged on opposite longitudinal sides of an air guiding element pivotally receiving frame, which also allow the mounting of the air guiding elements by clipping the protruding laterally from these journal into the bearing recesses by the spring open the lateral boundaries of the bearing recesses within the scope of their plastic deformability and spring back into their starting positions after the bearing pins have been clipped in.
- the object on which the invention is based is to improve the pivot bearing intended for the storage of pivot elements of the type specified in the preamble of claim 1 in such a way that, with simple assembly, a secure mounting of the pivot pins of the pivot elements is ensured in the assembled position.
- opposite bearing brackets are molded on both longitudinal sides of the frame, and that in parallel to the longitudinal sides of the frame of molded bearing brackets spring arms with bearing catches arranged at their free ends extend that the bearing catches of two spring arms, with their free ends are directed towards one another, form a bearing journal between them receiving bearing recesses with an insertion slot for clipping a bearing journal, and that the bearing journals received in the bearing recesses face the bearing catches with their sides facing the respective insertion slot, on the other hand with the sides facing away from the insertion slots support on abutments.
- the invention thus realizes a pivot bearing design in which, in view of the arrangement of the bearing catches forming the bearing recesses at the free ends of spring arms, the bearing pins of the pivoting elements can be clipped into the bearing recesses with little effort and large bearing journal wrap angles can nevertheless be achieved in the assembly position, in which a random pushing out of the bearing pins from their mounting positions is also effective It is prevented that forces acting on the bearing pins of the swivel elements do not act as spreading forces on the spring arms forming a bearing recess, but act in the manner of a self-locking effect on the bearing catches of a bearing recess in the sense of a closing force that reduces the respective insertion slot.
- the spring arms provided with the bearing catches for receiving the bearing journals of the air guiding elements are thus designed such that only small forces are required to clip the bearing journals into the bearing recesses, while a possible disengagement is not possible without special disassembly aids.
- two bearing catches which are assigned to one another and form a bearing recess can be arranged in a fork-like manner by spring arms extending from a bracket. It has proven to be particularly advantageous, however, if, according to a further development, each spring arm extends from each bearing bracket to sides facing away from one another with a bearing catch arranged at its free end, the bearing catches arranged at the free ends of spring arms of adjacent bearing brackets then forming a bearing recess .
- the spring arms can expediently each extend from a web connecting the bearing bracket to the longitudinal side of the frame.
- the spring arms can have a considerable length extension and thus have great elastic deformability, so that, without prejudice to small-sized insertion openings for the bearing pins, the latter can easily be clipped into the mounting position and large wrap angles can be realized.
- the bearing recesses formed by the bearing catches arranged at the free ends of the spring catches can also be designed such that the bearing catches effectively encompass the bearing journals on opposite sides in such a way that the bearing journals neither deform without deforming the spring catches carrying the bearing catches Can still dodge towards the side facing away from the direction of insertion.
- the arrangement can also be such that adjacent bearing brackets in the longitudinal direction of the frame side parts are connected to each other opposite the respective insertion slot of the bearing recesses for clipping in the bearing journal, and that the sections conveying this connection form abutments for the bearing journals which are otherwise accommodated between mutually associated bearing catches.
- the bearing journals can be provided at their ends facing away from the pivot elements with end flanges projecting radially beyond the journals, which in the assembled position engage positively behind the spring arms or the bearing catches arranged at their free ends, so that the pivot elements are precisely defined in the assembly position is also guaranteed in the direction of the articulation axis.
- guides running for the ends of the bearing journals in the insertion direction of the bearing journals in the insertion direction of the bearing journals can also be provided between adjacent bearing brackets, so that the bearing journal ends in the assembly position between the guide ends facing away from the insertion end and those at the free ends of the Spring arms arranged bearing catches are taken and largely guided freely.
- the air nozzle 10 illustrated in the drawing has a circumferential frame 11 with air guide elements 12, 12 'accommodated therein, which are pivotably mounted on the frame side parts 13, 13'.
- the lamellar air guiding elements 12 have injection pins 14, 14 'extending on both sides of them and in the longitudinal direction of the frame successively injection-molded on the inside of the frame side parts 13, 13', mutually opposite bearing brackets 15, 15 '.
- the bearing brackets 15, 15 ' each have spring arms 17, 17' extending from a web 16 to sides facing away from one another, the bearing catches 18, which are matched at their free ends to the contour of the bearing pins 14, 14 ', 18 'are equipped.
- two mutually associated bearing pegs form a bearing recess 20 which is open on one side and the spring arms 17, 17 'which extend from one another in the longitudinal direction of the frame 16 to one another extend to the bearing pegs 18, 18' arranged at their free ends or in the direction of the open side 21 of FIG bearing recess 20 formed by the bearing catches converging.
- This converging Sections of the spring arms thus form funnel-like insertion openings for the bearing journals 14, 14 'of the air guiding elements 12, 12' during their assembly.
- the bearing brackets 22 growing out of the respective side part and between the bracket plates of adjacent bearing brackets 15, 15 'extend open guides 23 for the journal ends to the insertion side of the bearing journals.
- said guides 23 are closed by connecting sections of adjacent brackets forming abutments.
- the free ends of the journals 14, 14 'of the air guide elements 12, 12' are provided with end flanges 24, 24 'projecting radially beyond the journals, the diameter of which is approximately equal to the width of the guides 23 formed between adjacent console plates 22.
- the arrangement of the bearing pegs 18, 18 'at the free ends of spring arms 17, 17' enables a large spring-back capacity of the bearing recesses 20 during assembly, with the result that the bearing pegs 18, 18 'in the assembled state over the bearing pins 14, 14' on the insertion side cover large circumferential areas.
- a swivel bearing design is thus realized which is characterized by large bearing circumference angles in the assembled state and in which accidental disassembly of the air guiding elements 12, 12 'is effectively prevented, because disassembling forces which are disproportionately greater than those used for the assembly work for the dismantling of the air guiding elements ought to.
- the air-guiding elements 12, 12 ' which are pivotably mounted within a frame 11 have projections 25, 25' on the rear, to which a continuous coupling rod 26 is connected in an articulated manner. In view of this forced coupling of the air guiding elements 12, 12 ', they pivot together from the closed position illustrated in FIG. 4 in thin lines into the open position at 27 shown in dashed lines and vice versa.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
- Control Of Turbines (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Schwenklager für um eine Anlenkachse verschwenkbar an einem Rahmen gelagerte Schwenkelemente, bei dem beidseitig von den Schwenkelementen vorstehende Lagerzapfen in nach einer Seite offene und einander gegenüberliegenden Rahmenseiten zugeordnete Lagerausnehmungen eingeclipst sind. Insbesondere bezieht sich die Erfindung auf Schwenklager für die Luftleitelemente bei Luftdüsen.The invention relates to a pivot bearing for pivot elements mounted on a frame so as to be pivotable about a pivot axis, in which bearing pins projecting from the pivot elements on both sides are clipped into bearing recesses which are open on one side and opposite frame sides associated with one another. In particular, the invention relates to swivel bearings for the air guide elements in air nozzles.
Schwenklager dieser Art sind bereits bei als Kunststoffteile ausgebildeten Luftdüsen mit zwischen einer Schließ- und einer maximalen Öffnungslage verschwenkbaren sowie in jeder beliebigen Stellung zwischen den vorgenannten Endlagen einstellbaren Luftleitelementen bekannt.Pivot bearings of this type are already known in the case of air nozzles designed as plastic parts with air guiding elements which can be pivoted between a closed and a maximum opening position and can be adjusted in any position between the aforementioned end positions.
Ein derartiges Schwenklager für die Luftleitelemente bei Luftdüsen ist in der GB-A-2 108 263 beschrieben, bei dem einander gegenüberliegende Längsseiten eines als Kunststoff-Spritzteil ausgebildeten Rahmens mit Lagerausnehmungen ausgerüstet sind, die aus gabelartigen Vorsprüngen mit komplementären Lagerrasten im Bereich ihrer freien Enden bestehen und zum Einclipsen der Lagerzapfen der Luftleitelemente dienen.Such a pivot bearing for the air guiding elements in air nozzles is described in GB-A-2 108 263, in which opposite longitudinal sides of a frame designed as a plastic injection-molded part are equipped with bearing recesses which consist of fork-like projections with complementary bearing catches in the region of their free ends and serve to clip in the journals of the air guiding elements.
Unbefriedigend dabei ist, daß wegen der nur begrenzten elastischen Verformbarkeit der mit den Lagerrasten versehenen Vorsprünge die Offenseiten der Lagerausnehmungen groß bemessen sein müssen, was dazu führt, daß die Umschlingung der Lagerzapfen in der Montagelage klein ist. Unbefriedigend ist ferner, daß die eingeclipsten Lagerzapfen in der Montagelage nur durch die Federkraft der gabelartigen Vorsprünge, deren Lagerrasten die Lagerausnehmungen bilden, gehalten sind. Beim Verstellen der Luftleitelemente können auf die eingeclipsten Lagerzapfen jedoch dem Einclipsen entgegengerichtete Kräfte einwirken und dadurch die Lagerzapfen aus den sie aufnehmenden Lagerausnehmungen herausgedrückt werden mit der Folge, daß es dann zu Verklemmungen kommt.It is unsatisfactory that because of the only limited elastic deformability of the bearing pegs Provided projections, the open sides of the bearing recesses must be large, which leads to the fact that the looping of the bearing pin is small in the mounting position. It is also unsatisfactory that the clipped bearing journals are held in the assembled position only by the spring force of the fork-like projections, the bearing catches of which form the bearing recesses. When adjusting the air guiding elements, however, forces acting on the clipped-in journal counter to the clipping-in action and thereby pushing the journal out of the bearing recesses receiving it, with the result that jamming then occurs.
Es sind auch schon Schwenklager der eingangs erläuterten Art und Zweckbestimmung bekannt, bei denen aneinander gegenüberliegenden Längsseiten eines Luftleitelemente verschwenkbar aufnehmenden Rahmens Lagerkonsolen mit Lagerausnehmungen angeordnet sind, die ebenfalls die Montage der Luftleitelemente durch Einclipsen der seitlich von diesen vorstehenden Lagerzapfen in die Lagerausnehmungen ermöglichen, indem die seitlichen Begrenzungen der Lagerausnehmungen im Rahmen ihrer plastischen Verformbarkeit auffedern und nach dem Einclipsen der Lagerzapfen in ihre Ausgangslagen zurückfedern.There are also pivot bearings of the type and intended use known, in which bearing brackets with bearing recesses are arranged on opposite longitudinal sides of an air guiding element pivotally receiving frame, which also allow the mounting of the air guiding elements by clipping the protruding laterally from these journal into the bearing recesses by the spring open the lateral boundaries of the bearing recesses within the scope of their plastic deformability and spring back into their starting positions after the bearing pins have been clipped in.
Auch bei diesen Schwenklagern müssen angesichts der nur begrenzten elastischen Verformbarkeit der gabelförmig ausgebildeten Begrenzungen der Lagerausnehmungen notwendig deren Offenseiten zum Einclipsen der Lagerzapfen groß bemessen sein, was ebenfalls zur Folge hat, daß nach der Montage die Lagerumschlingungswinkel klein sind. Dadurch können auch bei diesen Schwenklagern die Lagerzapfen beim Betätigen der Luftleitelemente leicht aus ihren Montagelagen gelangen, weil die Demontagekräfte wesentlich kleiner sind als die beim Einclipsen aufzubringenden Montagekräfte.Even with these pivot bearings, given the only limited elastic deformability of the fork-shaped limitations of the bearing recesses, the open sides of the bearing pins must be large in size for clipping in, which also has the consequence that the bearing wrap angles are small after assembly. As a result, even with these pivot bearings, the trunnions can be easily actuated when the air guiding elements are actuated get out of their mounting positions because the disassembly forces are much smaller than the assembly forces to be applied when clipping in.
Demgemäß besteht die der Erfindung zugrundeliegende Aufgabe darin, das für die Lagerung von Schwenkelementen bestimmte Schwenklager der im Oberbegriff des Patentanspruchs 1 angegebenen Art dahingehend zu verbessern, daß bei einfacher Montage eine sichere Aufnahme der Lagerzapfen der Schwenkelemente in der montierten Lage gewährleistet ist.Accordingly, the object on which the invention is based is to improve the pivot bearing intended for the storage of pivot elements of the type specified in the preamble of claim 1 in such a way that, with simple assembly, a secure mounting of the pivot pins of the pivot elements is ensured in the assembled position.
Diese Aufgabe ist erfindungsgemäß dadurch gelöst, daß an beiden Rahmenlängsseiten einander gegenüberliegende Lagerkonsolen angespritzt sind, und daß sich in Parallellage zu den Rahmenlängsseiten von angespritzten Lagerkonsolen Federarme mit an ihren freien Enden angeordneten Lagerrasten forterstrecken, daß die Lagerrasten von zwei Federarmen, die mit ihren freien Enden aufeinander zu gerichtet sind, eine einen Lagerzapfen zwischen sich aufnehmende Lagerausnehmungen mit einem Einführschlitz zum Einclipsen eines Lagerzapfens bilden, und daß die in den Lagerausnehmungen aufgenommenen Lagerzapfen sich mit ihren zum jeweiligen Einführschlitz hin weisenden Seiten an den Lagerrasten, hingegen mit den von den Einführschlitzen abgewandten Seiten an Widerlagern abstützen.This object is achieved in that opposite bearing brackets are molded on both longitudinal sides of the frame, and that in parallel to the longitudinal sides of the frame of molded bearing brackets spring arms with bearing catches arranged at their free ends extend that the bearing catches of two spring arms, with their free ends are directed towards one another, form a bearing journal between them receiving bearing recesses with an insertion slot for clipping a bearing journal, and that the bearing journals received in the bearing recesses face the bearing catches with their sides facing the respective insertion slot, on the other hand with the sides facing away from the insertion slots support on abutments.
Durch die Erfindung ist somit eine Schwenklagerausbildung verwirklicht, bei der angesichts der Anordnung der die Lagerausnehmungen bildenden Lagerrasten an den freien Enden von Federarmen das Einclipsen der Lagerzapfen der Schwenkelemente in die Lagerausnehmungen mit geringem Kraftaufwand gelingt und gleichwohl große Lagerzapfen-Umschlingungswinkel in der Montagelage verwirklichbar sind, bei der ein zufälliges Herausdrücken der Lagerzapfen aus ihren Montagelagen aber auch dadurch wirksam unterbunden ist, daß insoweit auf die Lagerzapfen der Schwenkelemente wirkende Kräfte nicht als Spreizkräfte an den eine Lagerausnehmung bildenden Federarmen angreifen, sondern in der Art einer Selbsthemmung auf die Lagerrasten einer Lagerausnehmung im Sinne einer den jeweiligen Einführschlitz verkleinernden Schließkraft wirken. Bei dem Schwenklager nach der Erfindung sind die mit den Lagerrasten versehenen Federarme für die Aufnahme der Lagerzapfen der Luftleitelemente somit so ausgebildet, daß es zum Einclipsen der Lagerzapfen in die Lagerausnehmungen nur geringer Kräfte bedarf, während ein etwaiges Ausrasten ohne besondere Demontagehilfsmittel zerstörungsfrei nicht möglich ist.The invention thus realizes a pivot bearing design in which, in view of the arrangement of the bearing catches forming the bearing recesses at the free ends of spring arms, the bearing pins of the pivoting elements can be clipped into the bearing recesses with little effort and large bearing journal wrap angles can nevertheless be achieved in the assembly position, in which a random pushing out of the bearing pins from their mounting positions is also effective It is prevented that forces acting on the bearing pins of the swivel elements do not act as spreading forces on the spring arms forming a bearing recess, but act in the manner of a self-locking effect on the bearing catches of a bearing recess in the sense of a closing force that reduces the respective insertion slot. In the pivot bearing according to the invention, the spring arms provided with the bearing catches for receiving the bearing journals of the air guiding elements are thus designed such that only small forces are required to clip the bearing journals into the bearing recesses, while a possible disengagement is not possible without special disassembly aids.
Im Rahmen der Erfindung können zwei einander zugeordnete und eine Lagerausnehmung bildende Lagerrasten an sich gabelförmig von einer Konsole forterstreckenden Federarmen angeordnet sein. Als besonders vorteilhaft hat sich jedoch erwiesen, wenn gemäß einer Weiterbildung sich von jeder Lagerkonsole nach voneinander abgewandten Seiten jeweils ein Federarm mit einer an seinem freien Ende angeordneten Lagerrast forterstreckt, wobei dann die an den freien Enden von Federarmen benachbarter Lager konsolen angeordneten Lagerrasten eine Lagerausnehmung bilden. Zweckmäßigerweise können die Federarme sich dabei jeweils von einem die Lagerkonsole mit der Rahmenlängsseite verbindenden Steg forterstrecken.Within the scope of the invention, two bearing catches which are assigned to one another and form a bearing recess can be arranged in a fork-like manner by spring arms extending from a bracket. It has proven to be particularly advantageous, however, if, according to a further development, each spring arm extends from each bearing bracket to sides facing away from one another with a bearing catch arranged at its free end, the bearing catches arranged at the free ends of spring arms of adjacent bearing brackets then forming a bearing recess . The spring arms can expediently each extend from a web connecting the bearing bracket to the longitudinal side of the frame.
Bei so ausgebildeten Schwenklagern können die Federarme beträchtliche Längenerstreckung haben und mithin große elastische Verformbarkeit aufweisen, so daß unbeschadet klein bemessener Einführöffnungen für die Lagerzapfen letztere leicht in die Montagelage einclipsbar sowie große Umschlingungswinkel realisierbar sind.With swivel bearings designed in this way, the spring arms can have a considerable length extension and thus have great elastic deformability, so that, without prejudice to small-sized insertion openings for the bearing pins, the latter can easily be clipped into the mounting position and large wrap angles can be realized.
Eine andere wichtige Weiterbildung sieht im Interesse einer vorteilhaften Montagehilfe vor, daß die Federarme einander zugewandter und eine Lagerausnehmung bildender Lagerrasten zu letzteren hin konvergierend verlaufen und in Einführrichtung der Lagerzapfen, also senkrecht zu der von letzteren gebildeten Lagerachse, sich trichterartig verengende Führungen bilden, mittels deren bei der Montage die Lagerzapfen den Lagerausnehmungen lagerichtig zugeführt werden.Another important further development provides, in the interest of an advantageous assembly aid, that the spring arms facing one another and forming a bearing recess converge towards the latter and form funnel-like guides in the direction of insertion of the journal, i.e. perpendicular to the bearing axis formed by the latter, by means of the latter during assembly, the trunnions are fed to the bearing recesses in the correct position.
Im Rahmen der vorliegenden Erfindung können die von den an den freien Enden der Federarme angeordneten Lagerrasten gebildeten Lagerausnehmungen auch so beschaffen sein, daß die Lagerrasten die Lagerzapfen aufeinander gegenüberliegenden Seiten wirksam in der Weise umfassen, daß die Lagerzapfen ohne Deformation der die Lagerrasten tragenden Federarme weder in Einführrichtung noch nach der von der Einführrichtung abgewandten Seite ausweichen können. Die Anordnung kann aber auchso getroffen sein, daß in Längsrichtung der Rahmenseitenteile benachbarte Lagerkonsolen dem jeweiligen Einführschlitz der Lagerausnehmungen zum Einclipsen der Lagerzapfen gegenüberliegend miteinander verbunden sind und daß die diese Verbindung vermittelnden Abschnitte Widerlager für die im übrigen zwischen einander zugeordneten Lagerrasten aufgenommenen Lagerzapfen bilden.In the context of the present invention, the bearing recesses formed by the bearing catches arranged at the free ends of the spring catches can also be designed such that the bearing catches effectively encompass the bearing journals on opposite sides in such a way that the bearing journals neither deform without deforming the spring catches carrying the bearing catches Can still dodge towards the side facing away from the direction of insertion. The arrangement can also be such that adjacent bearing brackets in the longitudinal direction of the frame side parts are connected to each other opposite the respective insertion slot of the bearing recesses for clipping in the bearing journal, and that the sections conveying this connection form abutments for the bearing journals which are otherwise accommodated between mutually associated bearing catches.
Bei einer derartigen Schwenklagergestaltung ist eine sichere Lagerzapfenaufnahme gewährleistet, wenn die an den freien Enden der Federarme angeordneten Lagerrasten die Lagerzapfen nur zur Einführseite hin umgreifen.With such a pivot bearing design, a secure bearing journal support is ensured if the bearing catches arranged on the free ends of the spring arms only grip the bearing journals towards the insertion side.
Gemäß einer nochmaligen Weiterbildung können die Lagerzapfen an ihren jeweils von den Schwenkelementen abgewandten Enden mit radial über die Zapfen vorstehenden Endflanschen versehen sein, die in der Montagelage die Federarme bzw. die an deren freien Enden angeordneten Lagerrasten formschlüssig hintergreifen, so daß eine präzise Festlegung der Schwenkelemente in der Montagelage auch in Richtung der Anlenkachse gewährleistet ist.According to a further development, the bearing journals can be provided at their ends facing away from the pivot elements with end flanges projecting radially beyond the journals, which in the assembled position engage positively behind the spring arms or the bearing catches arranged at their free ends, so that the pivot elements are precisely defined in the assembly position is also guaranteed in the direction of the articulation axis.
Schließlich können im Rahmen der Erfindung auch zwischen in Rahmenlängsrichtung benachbarten Lagerkonsolen in Einführrichtung der Lagerzapfen bei der Montage verlaufende Führungen für die Enden der Lagerzapfen vorgesehen sein, so daß die Lagerzapfenenden in der Montagelage zwischen den von der Einführseite abgewandten Führungsenden und den an den freien Enden der Federarme angeordneten Lagerrasten aufgenommen und dabei weithin zwangfrei geführt werden.Finally, within the scope of the invention, guides running for the ends of the bearing journals in the insertion direction of the bearing journals in the insertion direction of the bearing journals can also be provided between adjacent bearing brackets, so that the bearing journal ends in the assembly position between the guide ends facing away from the insertion end and those at the free ends of the Spring arms arranged bearing catches are taken and largely guided freely.
Eine Ausführungsform der Erfindung soll nachstehend anhand der beigefügten Zeichnung erläutert werden. In schematischen Ansichten zeigen:
- Fig. 1
- eine aus einem umlaufenden Rahmen und an diesem um eine Anlenkachse verschwenkbar gelagerten Luftleitelementen bestehende Luftdüse mit Blick von der Düsenrückseite,
- Fig. 2
- einen Querschnitt gemäß der Schnittlinie II-II in Fig. 1 durch die Luftdüse,
- Fig. 3
- in einem Ausschnitt gemäß III aus Fig. 1 eine vergrößerte Ansicht der Lagerung der Luftleitelemente und
- Fig. 4
- die Lagerung eines Luftleitelementes mit zwischen einander zugeordneten Lagerrasten aufgenommenem Lagerzapfen in einer seitlichen Ansicht entsprechend der Blickrichtung IV in Fig. 3.
- Fig. 1
- an air nozzle consisting of a circumferential frame and on this air-guiding elements pivotably mounted about an articulation axis, with a view from the rear of the nozzle,
- Fig. 2
- 2 shows a cross section according to section line II-II in FIG. 1 through the air nozzle,
- Fig. 3
- in a section according to III from FIG. 1, an enlarged view of the mounting of the air guiding elements and
- Fig. 4
- the storage of an air guiding element with a bearing journal received between associated bearing catches in a side view corresponding to viewing direction IV in FIG. 3.
Die in der Zeichnung veranschaulichte Luftdüse 10 besitzt einen umlaufenden Rahmen 11 mit in diesem aufgenommenen Luftleitelementen 12, 12', die schwenkbar an den Rahmenseitenteilen 13, 13' gelagert sind. Die lamellenartig ausgebildeten Luftleitelemente 12 haben sich beidseitig von diesen forterstreckende Lagerzapfen 14, 14' und in Rahmenlängsrichtung aufeinanderfolgend sind innenseitig an die Rahmenseitenteile 13, 13' jeweils einander gegenüberliegend Lagerkonsolen 15, 15' angespritzt.The
Die Lagerkonsolen 15, 15' haben, wie insbesondere Fig. 4 zeigt, sich jeweils von einem Steg 16 nach voneinander abgewandten Seiten forterstreckende Federarme 17, 17', die an ihren freien Enden mit der Kontur der Lagerzapfen 14, 14' angepaßten Lagerrasten 18, 18' ausgerüstet sind. Jeweils zwei einander zugeordnete Lagerrasten bilden eine einseitig offene Lagerausnehmung 20 und die sich von in Rahmenlängsrichtung benachbarten Stegen 16 aufeinander zu fortertstreckenden Federarme 17, 17' verlaufen zu den an ihren freien Enden angeordneten Lagerrasten 18, 18' bzw. in Richtung auf die Offenseite 21 der von den Lagerrasten gebildeten Lagerausnehmung 20 konvergierend. Diese konvergierenden Abschnitte der Federarme bilden somit trichterartige Einführöffnungen für die Lagerzapfen 14, 14' der Luftleitelemente 12, 12' bei deren Montage.The
Ferner haben, wie insbesondere die Fig. 3 zeigt, die Lagerkonsolen aus dem jeweiligen Seitenteil herauswachsende Konsolenplatten 22 und zwischen den Konsolenplatten benachbarter Lagerkonsolen 15, 15' erstrecken sich zur Einführseite der Lagerzapfen hin offene Führungen 23 für die Lagerzapfenenden. Auf der anderen Seite sind die genannten Führungen 23 durch Widerlager bildende Verbindungsabschnitte benachbarter Konsolen geschlossen. Die freien Enden der Lagerzapfen 14, 14' der Luftleitelemente 12, 12' sind mit radial über die Zapfen vorstehenden Endflanschen 24, 24' versehen, deren Durchmesser annähernd gleich der Breitenerstreckung der zwischen benachbarten Konsolenplatten 22 gebildeten Führungen 23 bemessen ist.Furthermore, as shown in FIG. 3 in particular, the
Bei der Montage der Luftleitelemente 12, 12' werden diese von der Rückseite aus mit ihren seitlich vorstehenden Lagerzapfen 14, 14' zwischen den Seitenteilen 13, 13' des Rahmens 11 so eingeführt, daß die Lagerzapfen in den von den konvergierend zueinander verlaufenden Abschnitten aufeinander zugerichteter Federarme 17, 17' gelangen, wobei die Endflanschen 24, 24' in die korrespondierenden Führungen 23 zwischen benachbarten Konsolenplatten 22 eingreifen, und dann durch leichte Krafteinwirkung in Richtung der die genannten Führungen begrenzenden Widerlager in ihre Montagelage hineingedrückt. Dabei federn die Federarme 17, 17' einander zugeordneter Lagerrasten auseinander und schnappen nach dem Einclipsen der Lagerzapfen 14, 14' in die aus Fig. 4 ersichtliche Montagelage zurück, in der die Endflanschen 24, 24' der Lagerzapfen zwischen den genannten Widerlagern und den angrenzenden Zapfenabschnitten und die Lagerzapfen selbst zwischen den Lagerrasten 18, 18' benachbarter Federarme 17, 17' aufgenommen sind.When installing the
Die Anordnung der Lagerrasten 18, 18' an den freien Enden von Federarmen 17, 17' ermöglicht ein großes Auffederungsvermögen der Lagerausnehmungen 20 bei der Montage mit der Folge, daß die Lagerrasten 18, 18' im montierten Zustand die Lagerzapfen 14, 14' einführseitig über große Umfangsbereiche umfassen. Es ist somit eine Schwenklagerausbildung verwirklicht, die sich durch große Lagerumfassungswinkel im montierten Zustand auszeichnet und bei der ein zufälliges Demontieren der Luftleitelemente 12, 12' wirksam unterbunden ist, weil für die Demontage der Luftleitelemente der Einführrichtung entgegengerichtet unverhältnismäßig größere Kräfte als für die Montage aufgewandt werden müßten.The arrangement of the bearing pegs 18, 18 'at the free ends of
Die innerhalb eines Rahmens 11 schwenkbar gelagerten Luftleitelemente 12, 12' haben rückseitige Vorsprünge 25, 25', mit denen eine durchgehende Koppelstange 26 gelenkig verbunden ist. Angesichts dieser Zwangskopplung der Luftleitelemente 12, 12' verschwenken diese aus der in Fig. 4 in dünnen Linien veranschaulichten Schließlage gemeinsam in die gestrichelt dargestellte Öffnungslage bei 27 und umgekehrt.The air-guiding
Claims (7)
- Pivot bearing for pivotal elements borne at a frame to be pivotable about a hinge axis, in which bearing there are bearing spigots which project from the pivotal elements at both sides and are clipped into bearing recesses which are open towards one side and associated with mutually opposite longitudinal sides of the frame, in particular pivot bearing for the air guide elements in air nozzles, characterised thereby, that mutually opposite bearing brackets are injection-moulded to both longitudinal sides of the frame, that spring arms (17, 17') with bearing detents (18, 18') arranged at their free ends extend forth from the bearing brackets (15, 15), which are injection-moulded on, in planes parallel to the longitudinal frame sides (13, 13'), that the bearing detents (18, 18') of two spring arms (17, 17'), which are oriented each towards the other by their free ends, form a bearing recess (20), which between them receives a bearing spigot (14, 14'), with an introduction slot (21) for the clipping-in of a bearing spigot (14, 14') and that the bearing spigots (14, 14') received in the bearing recesses (20) bear by their sides facing the respective introduction slot (21) against the bearing detents (18, 18'), thereagainst by the sides remote from the introduction slots against counterbearings.
- Pivot bearing according to claim 1, characterised thereby, that a respective spring arm (17, 17') extends forth by a bearing detent (18, 18'), which is arranged at its free end, towards the mutually remote sides from each bearing bracket (15, 15').
- Pivot bearing according to claim 2, characterised thereby, that the spring arms (17, 17') each extend forth from a web (16) connecting the bearing bracket (15, 15') with the longitudinal frame side (13, 13').
- Pivot bearing according to claim 2 or 3, characterised thereby, that the spring arms (17, 17') extend convergently to bearing detents (18, 18'), which are each associated with the other and form a bearing recess (20), and form guides, which narrow during the assembly in funnel shape, in the direction of introduction of the bearing spigots (14, 14'), for the bearing spigots (14, 14').
- Pivot bearing according to one of the claims 2 to 4, characterised thereby, that bearing brackets, which are neighbouring in longitudinal direction of the frame side parts (13, 13'), are connected together opposite the respective introduction slot (21) of the bearing recesses (20) and that the connecting portions, which extend between these bearing brackets, form counterbearings for the bearing spigots (14, 14'), which for the remainder are received between mutually associated bearing detents (18, 18').
- Pivot bearing according to one of the claims 2 to 5, characterised thereby, that the bearing spigots (14, 14') at their ends respectively remote from the pivotal elements (12, 12') are provided with end flanges (24, 24'), which project radially beyond the spigots and which in the assembled position engage shape-lockingly behind the spring arms (17, 17') or the bearing detents (18, 18') arranged at their free ends.
- Pivot bearing according to one of the claims 2 to 6, characterised thereby, that guides (23), which during the assembly extend in the direction of introduction of the bearing spigots (14, 14'), for the ends (24) of the bearing spigots are arranged between bearing brackets (15, 15'), which are neighbouring in longitudinal direction of the frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4131995 | 1991-09-26 | ||
| DE4131995A DE4131995C1 (en) | 1991-09-26 | 1991-09-26 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0534103A2 EP0534103A2 (en) | 1993-03-31 |
| EP0534103A3 EP0534103A3 (en) | 1994-07-13 |
| EP0534103B1 true EP0534103B1 (en) | 1996-10-23 |
Family
ID=6441505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92113401A Expired - Lifetime EP0534103B1 (en) | 1991-09-26 | 1992-08-06 | Pivot bearings, especially for air guide vanes of air nozzles |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0534103B1 (en) |
| AT (1) | ATE144612T1 (en) |
| DE (1) | DE4131995C1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9597507B2 (en) | 2014-10-31 | 2017-03-21 | Medtronic, Inc. | Paired stimulation pulses based on sensed compound action potential |
| DE202024000252U1 (en) | 2024-02-09 | 2024-03-11 | Ako - Kunststoffe Alfred Kolb Gmbh | Further development of swivel bearings, especially for the air guide elements in air nozzles |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3636854A (en) * | 1970-01-19 | 1972-01-25 | Arthur P Cary | Fluid control system louver unit |
| US3680470A (en) * | 1970-10-15 | 1972-08-01 | Dynaplastics Inc | Louver with a reduced turning radius |
| NZ183083A (en) * | 1976-02-28 | 1979-03-28 | Clarke Chapman Ltd | Ion exchange; method and apparatus; cellulosic ion exchange medium and liquid containing proteinaceous materials |
| US4060024A (en) * | 1976-10-28 | 1977-11-29 | Goodman Manufacturing Corporation | Damper assembly |
| AU546933B2 (en) * | 1981-10-02 | 1985-09-26 | Mitsubishi Denki Kabushiki Kaisha | Wind shift apparatus for an air conditioner |
-
1991
- 1991-09-26 DE DE4131995A patent/DE4131995C1/de not_active Expired - Lifetime
-
1992
- 1992-08-06 EP EP92113401A patent/EP0534103B1/en not_active Expired - Lifetime
- 1992-08-06 AT AT92113401T patent/ATE144612T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE4131995C1 (en) | 1993-02-25 |
| ATE144612T1 (en) | 1996-11-15 |
| EP0534103A3 (en) | 1994-07-13 |
| EP0534103A2 (en) | 1993-03-31 |
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