EP0490357B1 - Pivoting device - Google Patents

Pivoting device Download PDF

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Publication number
EP0490357B1
EP0490357B1 EP91121224A EP91121224A EP0490357B1 EP 0490357 B1 EP0490357 B1 EP 0490357B1 EP 91121224 A EP91121224 A EP 91121224A EP 91121224 A EP91121224 A EP 91121224A EP 0490357 B1 EP0490357 B1 EP 0490357B1
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EP
European Patent Office
Prior art keywords
pivoting arm
shaft
sleeve
pivoting
arm
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
EP91121224A
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German (de)
French (fr)
Other versions
EP0490357A1 (en
Inventor
Helmut Speich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Erlau AG
Original Assignee
Eisen und Drahtwerk Erlau AG
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Publication date
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Publication of EP0490357A1 publication Critical patent/EP0490357A1/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/543—Supports for the arms movable to inoperative position
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/06—Wall stools ; Stools hingedly mounted against the wall
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/12—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant
    • G05G5/14—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like
    • G05G5/16—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in an indefinite number of positions, e.g. by a toothed quadrant by locking a member with respect to a fixed quadrant, rod, or the like by friction

Definitions

  • the invention relates to a swivel device according to the preamble of claim 1.
  • Such swivel devices are preferably used to operate and hold armrests, support handles, folding seats in toilets, bathrooms, etc. for disabled people.
  • a known pivoting device (DE-U-88 05 243) the pivot arm is formed by a loading flap which is pivotably mounted on a carrier.
  • This known swivel device has a freewheel and a braking device.
  • the actuator is a nut that is screwed onto the free end of the shaft.
  • the actuator interacts with disc springs, which are also mounted on the shaft and engage a cone, which is axially displaceably mounted on a counter-cone seated directly on the shaft. The two cones are moved against each other by the axial force exerted by the nut and the plate spring, whereby the radially acting braking force is achieved.
  • This known Schwekvorraum is structurally very complicated and expensive.
  • the nut, the plate springs and the cones are required to achieve the braking force. Since these parts are arranged axially next to one another, the braking device also has a correspondingly large axial length. This swivel device is expensive to manufacture, especially since the cones have to be manufactured with low manufacturing tolerances to ensure the required braking effect. In addition, the shaft and the counter cone sitting on it must be provided with an additional profile in order to enable the required non-rotatable connection between the counter cone and the shaft.
  • An articulated hinge is also known (US-A-4 630 333), in which the pivoting arm is not impeded in its pivotability by either a free-wheel or a braking device.
  • the invention has for its object to design the generic swivel device so that it can be produced at a low cost with a compact and structurally simple design.
  • the swivel device according to the invention is characterized by a structurally extremely simple structure, as a result of which the swivel device can be manufactured very inexpensively, in particular as a mass article.
  • the braking device consists of only two parts, namely the sleeve and the actuator.
  • the sleeve is a simple component that can be mass-produced inexpensively. Because of the very small number of components for the braking device, the swiveling device according to the invention can also be assembled inexpensively.
  • the swivel device according to the invention is thus characterized by its constructive simplicity, which, however, is not at the expense of functional reliability.
  • the required braking force between the sleeve and the shaft is reliably achieved depending on the weight of the swivel arm.
  • Even manufacturing tolerances are irrelevant, since the sleeve can in any case be radially deformed to such an extent that the necessary frictional engagement between it and the shaft is achieved.
  • Figures 1 and 2 show a swivel arm 1 which is pivotally arranged on a bracket 2 serving as a carrier.
  • the swivel arm 1 can be folded up from a horizontal position shown in FIG. 1 into a vertical position (see dash-dotted lines in FIG. 1).
  • an intermediate position (dashed line in Fig. 1) is adjustable.
  • the swivel arm 1 rests with its free end 3 on a stop 4, while with a widening 17 of its other end 5 it rests against a further stop 18.
  • the training can of course also be such that the swivel arm 1 rests in the horizontal position either on the stop 4 or on the stop 18.
  • the swivel arm 1 can, for example, be an armrest, a support handle or a seat, such as a folding seat or toilet seat, or can also serve as a support for such a seat.
  • folding parts are mainly used for disabled people in toilets, bathrooms and the like. You must be able to move from the horizontal to the vertical position and vice versa by the handicapped with as little effort as possible, without the risk that the folding part falls under its own weight and thereby injuring the person concerned.
  • the console 2 is preferably a bearing block which is attached to a wall or the like.
  • the swivel device is provided with a brake.
  • the swivel arm 1 has at its widened end 5 an opening 6 extending through it, into which a sleeve 7 with a press fit is inserted, which forms a braking part of a braking device 7, 9, radial to the opening 6 in the swivel arm 1, a threaded hole 8 into which an adjusting member 9, in the exemplary embodiment a grub screw, is screwed. Together with the sleeve 7, it forms the braking device.
  • the screw 9 presses with its preferably tapered end 10 against the sleeve 7, so that it is pressed against a shaft 11 of the swivel arm lying in the sleeve with play.
  • this braking force can be set so that it is greater than the force generated by the weight of the swivel arm 1.
  • the operator can overcome the braking force by hand with relatively little effort, so that the swivel arm 1 from its vertical position (dash-dotted lines in Fig. 1) can be easily and quickly pivoted back into its horizontal position of use.
  • the shaft 11 protrudes into a blind hole 12 of the bracket 2 aligned with the opening 6.
  • Two sleeves 14 and 15 with an interference fit are arranged in the blind hole 12 at an axial distance. They surround the shaft 11 with little play, so that the shaft can be rotated freely in the sleeves.
  • a freewheel 16 which allows the rotation of the shaft 11 only in one direction.
  • the freewheel is designed so that the swivel arm can easily be swiveled up by hand from its horizontal position without braking force.
  • the shaft 11 then rotates in the bearing sleeves 14 and 15 in the freewheeling direction. Because of the clamping caused by the screw 9, there is no relative rotation between the sleeve 7 and the shaft 11.
  • the swivel arm 1 If the swivel arm 1 is released when swiveling up, the freewheel 16 blocks the rotational movement of the shaft 11 in the opposite direction. Since the swivel arm 1 is frictionally connected to the shaft 11 in the manner described, the swivel arm remains in the released position. The frictional force between the sleeve 7 and the shaft 11 is greater than the force due to the weight of the swivel arm 1.
  • the sleeve 7 is preferably made of a material with a high coefficient of friction, such as a type of brake pad, rubber, rubber textile, leather and the like.
  • the swivel arm 1 can be easily swiveled back into its horizontal position from a fully or only partially folded position. It only has to be the frictional force between the Sleeve 7 and the shaft 11 are overcome. As a result of the freewheel 16, the shaft itself cannot be turned back. With the actuator or screw 9, the frictional force can be adjusted so that the swivel arm 1 is held reliably on the one hand in the partially swiveled-up position, but on the other hand can be swung back into its initial position with little effort.
  • the shaft 11 is axially secured in the swivel arm 1 and in the bracket 2 by a stop (not shown) or the like.
  • a stop not shown
  • the swivel arm 1 can also consist of two arm parts arranged on both sides of the console 2, which are fixedly connected to one another, optionally integrally formed with one another.
  • the arm parts can each be connected to the shaft 11 in the manner described, which in this case protrudes into the corresponding receptacles of the arm parts via opposite sides of the console 2.
  • the braking device (sleeve 7 and screw 9) can also be provided on only one arm part.
  • the swivel device is not only suitable for swiveling armrests, support handles, folding seats and the like, but also, for example, for barriers, barriers, etc.
  • the swivel arm can be held in any position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Support Of Aerials (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Braking Arrangements (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

Abstract

The pivoting device has at least one pivoting arm (1) which is arranged on at least one support (2). There engages on the pivoting arm at least one brake (7, 9) which is ineffective when pivoted up and secures the pivoting arm (1) against pivoting back. When the pivoting arm (1) is pivoted down, the brake (7, 9) comes into operation so that the pivoting arm (1) cannot fall down unintentionally. As the brake (7, 9) is made inoperational when the pivoting arm (1) is pivoted up, only the dead weight of the pivoting arm (1) has to be pushed up, which even disabled persons can carry out easily. <IMAGE>

Description

Die Erfindung betrifft eine Schwenkvorrichtung nach dem Oberbegriff des Anspruches 1.The invention relates to a swivel device according to the preamble of claim 1.

Solche Schwenkvorrichtungen dienen bevorzugt zur Bedienung und zur Halterung von Armlehnen, Stützgriffen, Klappsitzen in Toiletten, Bädern v.a. für behinderte Personen.Such swivel devices are preferably used to operate and hold armrests, support handles, folding seats in toilets, bathrooms, etc. for disabled people.

Bei einer bekannten Schwekvorrichtung (DE-U-88 05 243) ist der Schwenkarm durch eine Ladeklappe gebildet, die an einem Träger schwenkbar gelagert ist. Diese bekannte Schwenkvorrichtung hat einen Freilauf sowie eine Bremseinrichtung. Das Stellglied ist eine Mutter, die auf das freie Ende der Welle geschraubt wird. Das Stellglied wirkt mit Tellerfedern zusammen, die ebenfalls auf der Welle gelagert sind und an einem Konus angreifen, der axial verschiebbar auf einem unmittelbar auf der Welle sitzenden Gegenkonus gelagert ist. Über die von der Mutter und der Tellerfeder ausgeübte Axialkraft werden die beiden Konen gegeneinander verschoben, wodurch die radial wirkende Bremskraft erzielt wird. Diese bekannte Schwekvorrichtung ist konstruktiv sehr kompliziert und aufwendig ausgebildet. Zur Erzielung der Bremskraft sind die Mutter, die Tellerfedern und die Konen erforderlich. Da diese Teile axial nebeneinander angeordnet sind, hat die Bremsvorrichtung auch eine entsprechend große axiale Länge. Diese Schwenkvorrichtung ist teuer in der Herstellung, zumal die Konen mit geringen Fertigungstoleranzen gefertigt werden müssen, um die erforderliche Bremswirkung zu gewährleisten. Zudem müssen die Welle sowie der auf ihr sitzende Gegenkonus mit einem zusätzlichen Profil versehen werden, um die erforderliche drehfeste Verbindung zwischen dem Gegenkonus und der Welle zu ermöglichen.In a known pivoting device (DE-U-88 05 243) the pivot arm is formed by a loading flap which is pivotably mounted on a carrier. This known swivel device has a freewheel and a braking device. The actuator is a nut that is screwed onto the free end of the shaft. The actuator interacts with disc springs, which are also mounted on the shaft and engage a cone, which is axially displaceably mounted on a counter-cone seated directly on the shaft. The two cones are moved against each other by the axial force exerted by the nut and the plate spring, whereby the radially acting braking force is achieved. This known Schwekvorrichtung is structurally very complicated and expensive. The nut, the plate springs and the cones are required to achieve the braking force. Since these parts are arranged axially next to one another, the braking device also has a correspondingly large axial length. This swivel device is expensive to manufacture, especially since the cones have to be manufactured with low manufacturing tolerances to ensure the required braking effect. In addition, the shaft and the counter cone sitting on it must be provided with an additional profile in order to enable the required non-rotatable connection between the counter cone and the shaft.

Es ist auch ein Gelenkband bekannt (US-A-4 630 333), bei dem der Schwenkarm weder durch einen Freilauf noch durch eine Bremseinrichtung in seiner Verschwenkbarkeit behindert wird.An articulated hinge is also known (US-A-4 630 333), in which the pivoting arm is not impeded in its pivotability by either a free-wheel or a braking device.

Der Erfindung liegt die Aufgabe zugrunde, die gattungs-gemäße Schwenkvorrichtung so auszubilden, daß sie bei kompakter und konstruktiv einfacher Ausbildung mit geringen Kosten hergestellt werden kann.The invention has for its object to design the generic swivel device so that it can be produced at a low cost with a compact and structurally simple design.

Diese Aufgabe wird bei der gattungsgemäßen Schwenkvorrichtung erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved with the generic swivel device according to the invention with the characterizing features of claim 1.

Die erfindungsgemäße Schwenkvorrichtung zeichnet sich durch einen konstruktiv äußerst einfachen Aufbau aus, wodurch sich die Schwenkvorrichtung insbesondere als Massenartikel sehr preisgünstig herstellen läßt. Die Bremseinrichtung besteht nur noch aus zwei Teilen, nämlich der Hülse und dem Stellglied. Die Hülse stellt dabei ein einfaches Bauteil dar, das als Massenartikel kostengünstig hergestellt werden kann. Aufgrund der sehr geringen Zahl von Bauteilen für die Bremseinrichtung kann die erfindungsgemäße Schwenkvorrichtung auch kostengünstig montiert werden. Selbst Fertigungstoleranzen beeinträchtigen die Funktionsfähigkeit der Bremseinrichtung nicht, da die Hülse infolge des radial angreifenden Stellgliedes radial gepreßt wird, so daß auf jeden Fall zwischen der Hülse und der Welle der erforderliche Reibschluß erzielt wird. Die drehfest mit dem Schwenkarm verbundene Hülse benötigt nur eine geringe axiale Länge, um die erforderliche Bremskraft zu erzielen. Darum weist der Schwenkarm auch nur geringe axiale Abmessungen auf. Da das Stellglied radial zur Hülse zur Erzielung der Bremskraft zugestellt und im Schwenkarm entsprechend radial gelagert ist, muß für dessen Stellglied kein zusätzlicher Einbauraum axial neben dem Schwenkarm vorgesehen werden. Die erfindungsgemäße Schwenkvorrichtung zeichnet sich somit durch ihre konstruktive Einfachheit aus, die jedoch nicht zu Lasten der Funktionssicherheit geht. Trotz der einfachen Ausbildung wird in Abhängigkeit vom Gewicht des Schwenkarmes zuverlässig die erforderliche Bremskraft zwischen der Hülse und der Welle erzielt. Selbst Fertigungstoleranzen spielen keine Rolle, da sich die Hülse auf jeden Fall so weit radial verformen läßt, daß der notwendige Reibschluß zwischen ihr und der Welle erzielt wird.The swivel device according to the invention is characterized by a structurally extremely simple structure, as a result of which the swivel device can be manufactured very inexpensively, in particular as a mass article. The braking device consists of only two parts, namely the sleeve and the actuator. The sleeve is a simple component that can be mass-produced inexpensively. Because of the very small number of components for the braking device, the swiveling device according to the invention can also be assembled inexpensively. Even manufacturing tolerances do not impair the functionality of the braking device, since the sleeve acts as a result of the radial attack Actuator is pressed radially, so that the required frictional engagement is achieved in any case between the sleeve and the shaft. The sleeve, which is non-rotatably connected to the swivel arm, requires only a small axial length to achieve the required braking force. That is why the swivel arm has only small axial dimensions. Since the actuator is delivered radially to the sleeve to achieve the braking force and is correspondingly radially supported in the swivel arm, no additional installation space has to be provided axially next to the swivel arm for the actuator. The swivel device according to the invention is thus characterized by its constructive simplicity, which, however, is not at the expense of functional reliability. Despite the simple design, the required braking force between the sleeve and the shaft is reliably achieved depending on the weight of the swivel arm. Even manufacturing tolerances are irrelevant, since the sleeve can in any case be radially deformed to such an extent that the necessary frictional engagement between it and the shaft is achieved.

Weitere Vorteile der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung.Further advantages of the invention result from the further claims, the description and the drawing.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben. Es zeigt:

Fig. 1
In Seitenansicht und teilweise im Schnitt eine erfindungsgemäße Schwenkvorrichtung mit einem Klapparm in verschiedenen Schwenkstellungen,
Fig. 2
einen Schnitt längs der Linie II-II in Fig. 1.
The invention is described below with reference to an embodiment shown in the drawing. It shows:
Fig. 1
In side view and partially in section, a swivel device according to the invention with a folding arm in different swivel positions,
Fig. 2
a section along the line II-II in Fig. 1st

Die Figuren 1 und 2 zeigen einen Schwenkarm 1, der an einer als Träger dienenden Konsole 2 schwenkbar angeordnet ist. Der Schwenkarm 1 ist aus einer in Fig. 1 dargestellten horizontalen Lage in eine vertikale Lage (vgl. strichpunktierte Linien in Fig. 1) nach oben klappbar. Außerdem ist eine Zwischenstellung (gestrichelte Linie in Fig. 1) einstellbar. In der horizontalen Lage liegt der Schwenkarm 1 mit seinem freien Ende 3 auf einem Anschlag 4 auf, während er mit einer Verbreiterung 17 seines anderen Endes 5 an einem weiteren Anschlag 18 anliegt. Die Ausbildung kann selbstverständlich auch so getroffen sein, daß der Schwenkarm 1 in der horizontalen Lage entweder am Anschlag 4 oder am Anschlag 18 anliegt.Figures 1 and 2 show a swivel arm 1 which is pivotally arranged on a bracket 2 serving as a carrier. The swivel arm 1 can be folded up from a horizontal position shown in FIG. 1 into a vertical position (see dash-dotted lines in FIG. 1). In addition, an intermediate position (dashed line in Fig. 1) is adjustable. In the horizontal position, the swivel arm 1 rests with its free end 3 on a stop 4, while with a widening 17 of its other end 5 it rests against a further stop 18. The training can of course also be such that the swivel arm 1 rests in the horizontal position either on the stop 4 or on the stop 18.

Der Schwenkarm 1 kann beispielsweise eine Armlehne, ein Stützgriff oder ein Sitz, wie ein Klappsitz oder Toilettensitz, sein, oder auch als Auflage für einen solchen Sitz dienen. Solche Klappteile werden vor allem für behinderte Personen in Toiletten, Bädern und dgl. eingesetzt. Sie müssen vom Behinderten daher mit möglichst wenig Kraftaufwand aus ihrer waagrechten in die senkrechte Lage und umgekehrt bewegt werden können, ohne daß die Gefahr besteht, daß das Klappteil unter seinem Eigengewicht nach unten fällt und dadurch die betreffende Person verletzt wird. Die Konsole 2 ist vorzugsweise ein Lagerbock, der an einer Wand oder dgl. befestigt ist.The swivel arm 1 can, for example, be an armrest, a support handle or a seat, such as a folding seat or toilet seat, or can also serve as a support for such a seat. Such folding parts are mainly used for disabled people in toilets, bathrooms and the like. You must be able to move from the horizontal to the vertical position and vice versa by the handicapped with as little effort as possible, without the risk that the folding part falls under its own weight and thereby injuring the person concerned. The console 2 is preferably a bearing block which is attached to a wall or the like.

Um einerseits zu verhindern, daß der Behinderte beim Hochklappen des Schwenkarmes 1 viel Kraft aufwenden muß, andererseits aber der Schwenkarm nicht ungewollt nach unten schwenkt, ist die Schwenkvorrichtung mit einer Bremse versehen.In order to prevent on the one hand that the disabled person has to exert a lot of force when folding up the swivel arm 1, but on the other hand does not unintentionally swivel the swivel arm downwards, the swivel device is provided with a brake.

Der Schwenkarm 1 hat an seinem verbreiterten Ende 5 eine ihn quer durchsetzende Öffnung 6, in die eine Hülse 7 mit Preßsitz eingesetzt ist, die ein Bremsteil einer Bremseinrichtung 7,9 bildet, Radial zur Öffnung 6 verlauft im Schwenkarm 1 eine Gewindebohrung 8, in die ein Einstellglied 9, im Ausführungsbeispiel eine Madenschraube, geschraubt ist. Sie bildet zusammen mit der Hülse 7 die Bremseinrichtung. Die Schraube 9 drückt mit ihrem vorzugsweise verjüngten Ende 10 gegen die Hülse 7, so daß diese gegen eine mit Spiel in der Hülse liegende Welle 11 des Schwenkarmes gepreßt wird. Dadurch wird zwischen der Hülse 7 und der Welle 11 eine Reib- bzw. Bremskraft erzeugt, die verhindert, daß der Schwenkarm 1 unter seinem Eigengewicht aus der hochgeklappten Lage unbeabsichtigt nach unten klappen kann. Andererseits kann diese Bremskraft so eingestellt werden, daß sie größer ist als die durch das Eigengewicht des Schwenkarmes 1 erzeugte Kraft. Dadurch kann die Bedienungsperson bei relativ geringem Kraftaufwand mit der Hand die Bremskraft überwinden, so daß der Schwenkarm 1 aus seiner vertikalen Stellung (strichpunktierte Linien in Fig. 1) einfach und schnell wieder in seine horizontale Gebrauchslage geschwenkt werden kann.The swivel arm 1 has at its widened end 5 an opening 6 extending through it, into which a sleeve 7 with a press fit is inserted, which forms a braking part of a braking device 7, 9, radial to the opening 6 in the swivel arm 1, a threaded hole 8 into which an adjusting member 9, in the exemplary embodiment a grub screw, is screwed. Together with the sleeve 7, it forms the braking device. The screw 9 presses with its preferably tapered end 10 against the sleeve 7, so that it is pressed against a shaft 11 of the swivel arm lying in the sleeve with play. As a result, a friction or braking force is generated between the sleeve 7 and the shaft 11, which prevents the swivel arm 1 from inadvertently folding down under its own weight from the folded-up position. On the other hand, this braking force can be set so that it is greater than the force generated by the weight of the swivel arm 1. As a result, the operator can overcome the braking force by hand with relatively little effort, so that the swivel arm 1 from its vertical position (dash-dotted lines in Fig. 1) can be easily and quickly pivoted back into its horizontal position of use.

Die Welle 11 ragt in eine mit der Öfffnung 6 fluchtende Sacklochbohrung 12 der Konsole 2. In der Sacklochbohrung 12 sind mit axialem Abstand zwei Hülsen 14 und 15 mit Preßsitz angeordnet. Sie umgeben die Welle 11 mit geringem Spiel, so daß die Welle frei in den Hülsen drehbar ist. In die Sacklochbohrung 12 ist außerdem zwischen die beiden Hülsen 14, 15 ein Freilauf 16 eingesetzt, der das Drehen der Welle 11 nur in einer Drehrichtung zuläßt. Der Freilauf ist so ausgebildet, daß der Schwenkarm aus seiner horizontalen Stellung ohne Bremskraft einfach von Hand hochgeschwenkt werden kann. Die Welle 11 dreht sich dann in den Lagerhülsen 14 und 15 in Freilaufrichtung. Zwischen der Hülse 7 und der Welle 11 findet hierbei infolge der durch die Schraube 9 bewirkten Klemmung keine Relativdrehung statt.The shaft 11 protrudes into a blind hole 12 of the bracket 2 aligned with the opening 6. Two sleeves 14 and 15 with an interference fit are arranged in the blind hole 12 at an axial distance. They surround the shaft 11 with little play, so that the shaft can be rotated freely in the sleeves. In the blind hole 12 is also inserted between the two sleeves 14, 15, a freewheel 16, which allows the rotation of the shaft 11 only in one direction. The freewheel is designed so that the swivel arm can easily be swiveled up by hand from its horizontal position without braking force. The shaft 11 then rotates in the bearing sleeves 14 and 15 in the freewheeling direction. Because of the clamping caused by the screw 9, there is no relative rotation between the sleeve 7 and the shaft 11.

Wenn der Schwenkarm 1 beim Hochschwenken losgelassen wird, sperrt der Freilauf 16 die Drehbewegung der Welle 11 in entgegengesetzter Richtung. Da der Schwenkarm 1 in der beschriebenen Weise reibschlüssig mit der Welle 11 verbunden ist bleibt der Schwenkarm in der losgelassenen Lage stehen. Die Reibkraft zwischen der Hülse 7 und der Welle 11 ist größer als die Kraft infolge des Eigengewichtes des Schwenkarmes 1. Vorzugsweise besteht die Hülse 7 aus einem Werkstoff mit einem hohen Reibungswert, wie beispielsweise eine Art Bremsbelag, Gummi, Gummitextil, Leder und dgl.If the swivel arm 1 is released when swiveling up, the freewheel 16 blocks the rotational movement of the shaft 11 in the opposite direction. Since the swivel arm 1 is frictionally connected to the shaft 11 in the manner described, the swivel arm remains in the released position. The frictional force between the sleeve 7 and the shaft 11 is greater than the force due to the weight of the swivel arm 1. The sleeve 7 is preferably made of a material with a high coefficient of friction, such as a type of brake pad, rubber, rubber textile, leather and the like.

Der Schwenkarm 1 läßt sich aus einer ganz oder nur teilweise hochgeklappten Lage mühelos in seine horizontale Lage zurückschwenken. Es muß hierbei nur die Reibkraft zwischen der Hülse 7 und der Welle 11 überwunden werden. Die Welle selbst kann infolge des Freilaufs 16 nicht zurückgedreht werden. Mit dem Stellglied bzw. Schraube 9 läßt sich die Reibkraft so einstellen, daß der Schwenkarm 1 einerseits in der teilweise hochgeschwenkten Lage zuverlässig gehalten wird, andererseits aber mit geringem Kraftaufwand in seine Ausgangslage zurückgeschwenkt werden kann.The swivel arm 1 can be easily swiveled back into its horizontal position from a fully or only partially folded position. It only has to be the frictional force between the Sleeve 7 and the shaft 11 are overcome. As a result of the freewheel 16, the shaft itself cannot be turned back. With the actuator or screw 9, the frictional force can be adjusted so that the swivel arm 1 is held reliably on the one hand in the partially swiveled-up position, but on the other hand can be swung back into its initial position with little effort.

Die Welle 11 ist im Schwenkarm 1 und in der Konsole 2 durch einen (nicht dargestellten) Anschlag oder dgl. axial gesichert. Es ist bei entsprechender Dicke des Schwenkarms und/oder der Konsole außerdem möglich, anstelle der Hülsen 7, 14 und 15 weitere Hülsen vorzusehen. Der Schwenkarm 1 kann auch aus zwei beiderseits der Konsole 2 angeordneten Armteilen bestehen, die miteinander fest verbunden, gegebenenfalls einstückig miteinander ausgebildet sind. Die Armteile können jeweils in der beschriebenen Weise mit der Welle 11 verbunden sein, die in diesem Fall über einander gegenüberliegende Seiten der Konsole 2 in die entsprechenden Aufnahmen der Armteile ragt. Die Bremseinrichtung (Hülse 7 und Schraube 9) kann auch nur an einem Armteil vorgesehen sein.The shaft 11 is axially secured in the swivel arm 1 and in the bracket 2 by a stop (not shown) or the like. With a corresponding thickness of the swivel arm and / or the console, it is also possible to provide further sleeves instead of sleeves 7, 14 and 15. The swivel arm 1 can also consist of two arm parts arranged on both sides of the console 2, which are fixedly connected to one another, optionally integrally formed with one another. The arm parts can each be connected to the shaft 11 in the manner described, which in this case protrudes into the corresponding receptacles of the arm parts via opposite sides of the console 2. The braking device (sleeve 7 and screw 9) can also be provided on only one arm part.

Die Schwenkvorrichtung eignet sich nicht nur für schwenkbare Armlehnen, Stützgriffe, Klappsitze und dgl., sondern beispielsweise auch für Schranken, Absperrungen usw.The swivel device is not only suitable for swiveling armrests, support handles, folding seats and the like, but also, for example, for barriers, barriers, etc.

Vorteilhaft ist bei der beschriebenen Schwenkvorrichtung, daß der Schwenkarm in jeder beliebigen Lage gehalten werden kann.It is advantageous in the swivel device described that the swivel arm can be held in any position.

Claims (4)

  1. A pivoting device with at least one pivoting arm (1) which is pivotably arranged on at least one carrier (2) and is mounted on a shaft (11) which is surrounded by a free-wheel mechanism (16) which enables rotation of the shaft (11) for swinging the pivoting arm (1) upward and stops the pivoting arm (1) from swinging back, and with braking means (7, 9) having an adjustment member (9) generating a braking force and co-operating with a braking component (7), in relation to which braking component the shaft (11) is rotatable as a result of overcoming the braking force when the pivoting arm (1) swings back, and in which braking means the braking component (7) is a sleeve mounted on the shaft (11),
    characterised in that the sleeve (7) is housed in an opening (6) of the pivoting arm (1) and is connected to the pivoting arm (1) so as to be rotationally rigid, and the adjustment member (9) is mounted in the pivoting arm (1) and is advanced to achieve the braking force in a radial manner toward the sleeve (7) which is mounted on the shaft (11) so as to be frictionally engaged depending on the force generated by the adjustment member (9).
  2. A pivoting device according to Claim 2, characterised in that the adjustment member (9) is a screw mounted in the pivoting arm (1).
  3. A pivoting device according to Claim 1 or 2, characterised in that the adjustment member (9) engages directly on the sleeve (7).
  4. A pivoting device according to any one of Claims 1 to 3, characterised in that the sleeve (7) is mounted with press fit in the opening (6) of the pivoting arm (1).
EP91121224A 1990-12-13 1991-12-11 Pivoting device Expired - Lifetime EP0490357B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9016827U DE9016827U1 (en) 1990-12-13 1990-12-13 Swivel device
DE9016827U 1990-12-13

Publications (2)

Publication Number Publication Date
EP0490357A1 EP0490357A1 (en) 1992-06-17
EP0490357B1 true EP0490357B1 (en) 1997-03-19

Family

ID=6860216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91121224A Expired - Lifetime EP0490357B1 (en) 1990-12-13 1991-12-11 Pivoting device

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EP (1) EP0490357B1 (en)
AT (1) ATE150512T1 (en)
DE (2) DE9016827U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9303678U1 (en) * 1993-03-12 1993-05-06 Abu-plast Kunststoffbetriebe GmbH, 8633 Rödental Wall folding seat
DE9407232U1 (en) * 1994-04-30 1995-06-08 Lepel, Barbara, Freifrau Von, 74199 Untergruppenbach Bow handle for the disabled
DE102008010605A1 (en) * 2008-02-22 2009-08-27 Leo Schwager Adjustable armrest, particularly for vehicle seats, has carrier, which is pivotable around fixed shaft and area of longitudinally extending connecting body is pivotably arranged on pivot point of arm
DE102017121229A1 (en) * 2017-09-13 2019-03-14 Grammer Ag armrest

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE237978C (en) *
US4630333A (en) * 1985-12-16 1986-12-23 Southco, Inc. Adjustable friction hinge
DE8805243U1 (en) * 1988-04-20 1988-06-01 Lunke & Sohn Gmbh, 5810 Witten Hinge for the bracket of a loading area

Also Published As

Publication number Publication date
ATE150512T1 (en) 1997-04-15
DE9016827U1 (en) 1991-02-28
EP0490357A1 (en) 1992-06-17
DE59108625D1 (en) 1997-04-24

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