EP2587963B1 - Latching mechanism - Google Patents

Latching mechanism Download PDF

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Publication number
EP2587963B1
EP2587963B1 EP11729295.3A EP11729295A EP2587963B1 EP 2587963 B1 EP2587963 B1 EP 2587963B1 EP 11729295 A EP11729295 A EP 11729295A EP 2587963 B1 EP2587963 B1 EP 2587963B1
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EP
European Patent Office
Prior art keywords
switching element
head portion
latching mechanism
housing
mechanism according
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.)
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Application number
EP11729295.3A
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German (de)
French (fr)
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EP2587963A1 (en
Inventor
Volker Pohlmann
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.)
Paul Hettich GmbH and Co KG
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Paul Hettich GmbH and Co KG
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Publication of EP2587963A1 publication Critical patent/EP2587963A1/en
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Publication of EP2587963B1 publication Critical patent/EP2587963B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/463—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-opening
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/47—Actuated drawers operated by mechanically-stored energy, e.g. by springs having both self-opening and self-closing mechanisms which interact with each other

Definitions

  • the present invention relates to a locking mechanism, in particular for an ejection device, with a switching element which is movable along a slotted guide in a housing and can be latched to a projection with a detent recess by the force of an ejection spring.
  • the EP 743,032 discloses a latching mechanism for a drawer slide in which a switching element is movably mounted along a slotted guide.
  • the switching element can be latched to a detent recess by the force of a spring.
  • To unlock the switching element can first be moved by a small distance in the closing direction, so that the switching element is pivoted on a run-up slope and then can be moved along the slotted guide.
  • the distance to unlock the locking mechanism is comparatively large, because first, the switching element must be moved from the detent recess to the opposite run-on slope before the switching element can then be pivoted by methods along the run-up slope.
  • a movably mounted head section is provided on the housing with a starting bevel opposite the detent recess, which is biased towards the detent recess.
  • the head portion can be arranged in the latched position of the switching element adjacent to the switching element, preferably also applied to the switching element, so that upon movement of the switching element in the closing direction, the switching element is unlocked immediately and with minimal travel such unlocking can be realized.
  • the head section with the starting bevel can also be in contact with the switching element with a bias, in this case that this can be laterally pivoted and unlocked with a small switching movement, for example by pushing a drawer.
  • the head portion is biased by a spring which is supported on the housing of the slotted guide.
  • the latching mechanism can be made particularly compact, with head section and spring being integrated into the housing.
  • the slotted guide can be formed by groove-shaped channels in the housing, wherein the head portion forms one end of the slotted guide and forms stop surfaces for the switching element.
  • the head portion on a leg which engages in an insertion channel of the slotted guide and is displaceable by the switching element.
  • the leg of the head portion can thereby act as a kind of pawl, which allows the switching element to pass only in one direction and prevents movement of the switching element in the opposite direction.
  • the leg closes the insertion channel in a first position and releases the insertion channel in a displaced second position to the region with the detent recess. If the switching element displaces the head section by a pressure on a contact surface on the leg, the switching element can latch after leaving the contact surface on the detent recess and the head section is moved back again due to the spring force, so that the leg closes the retraction channel. This prevents that the switching element accidentally does not latch on the detent recess and the functionality of the locking mechanism is impaired.
  • the head portion is preferably mounted linearly displaceable between two stops, for example, the head portion has a pin which engages in a slot on the housing.
  • the sliding path of the head portion may be dimensioned so that the switching element is held almost positively on the detent recess and is pivoted immediately upon movement to the run-on slope of the head portion.
  • the switching element may be formed as a wire, which engages with a bent end portion in the slotted guide.
  • the locking mechanism according to the invention is preferably used in furniture fittings, in particular in drawer guides.
  • a drawer can be locked in a closed position, in order then to be ejected in an unlocking of the locking mechanism in the opening direction by the force of the ejection spring.
  • other applications for the locking mechanism are possible.
  • An ejection device 1 comprises a mounting body 2, on which a driver 4 is movably mounted.
  • the driver 4 is biased by a pull-in spring in the closing direction, wherein the pull-in spring 3 is fixed at one end to the driver 4 and at the other end to the mounting body 2.
  • the driver 4 is movably mounted along a guideway to the mounting body 2 and may be coupled to a furniture part, such as a rail of a pullout guide, to act as a self-closing.
  • a damper may be mounted on the mounting body 2.
  • the driver 4 causes a safe entry of an activator in a locking system.
  • an ejector 13 is movably mounted on the mounting body 2, which is latched in a closed position of the furniture part via a latching mechanism.
  • the ejector 13 is biased via an ejection spring in the opening direction, which is arranged in a spring housing 5.
  • a latching mechanism is provided with a housing 6, on which a head portion 7 is slidably mounted.
  • a housing 6 As in FIG. 2 is shown in the housing 6 is a slotted guide, in which a switching element 9 is movably mounted.
  • the switching element 9 is formed as a wire which engages with an angled end portion 10 in the slotted guide.
  • the switching element 9 is coupled on the opposite side with the driver 4.
  • the slotted guide is formed by groove-shaped channels, which are formed integrally with the housing 6 made of plastic.
  • a projection 80 is arranged with a detent recess 61.
  • the slotted guide comprises a loop-shaped portion with a retraction channel 62, which leads the bent end portion 10 of the switching element 9 to the detent recess 61.
  • the switching element 9 can then be moved by a positive guide through the head portion 7 in an extension channel 63 and then moved by the force of the ejection spring to a junction 64, so that the projection 60 is bypassed by the switching element on the loop-shaped portion. From the branch 64, the switching element 9 can be moved along an outlet 65.
  • the locking mechanism is shown with the switching element 9.
  • the switching element 9 moves from the branch 64 to the head portion 7, wherein a leg 70 is inserted into the insertion channel 62 and closes it.
  • the switching element 9 must therefore initially engage with the angled end section 10 on a contact surface 71 on the leg 70 in order to displace the head section 7 in order then to reach the region with the detent recess 61.
  • the contact surface 71 is arranged obliquely to the longitudinal direction of the housing 6, so that the switching element 9 presses against the contact surface 71 and a side surface of the projection 60.
  • the head portion 7 is displaced in the longitudinal direction of the housing and the switching element 9 can reach into a receptacle 72 on the head portion 7.
  • the head section 7 is now moved back again by the force of a spring 8, so that the leg 70 closes the entry channel 62. This prevents that the switching element 9 accidentally gets back into the entry channel 62.
  • the switching element 9 is now pulled in the opening direction due to the force of the ejection spring, ie to the left in FIG. 4 , As a result, the angled end portion 10 is latched to the detent recess 61.
  • the head portion 7 has a run-on slope 74, which is arranged opposite the detent recess 61.
  • the run-on slope 74 is formed on a projection 73, whose tip is arranged offset to the detent recess 61, so that upon movement of the switching element 9 in the closing direction, ie to the right in FIG. 4 , the bent end portion 10 of the switching element rests against the run-on slope 74 and the switching element 9 is pivoted.
  • a receptacle 75 is formed on the head portion 7 adjacent to the run-on slope 74, on which the extension channel 63 begins on the housing 6. If the switching element 9 reaches the receptacle 75, the switching element can. 9 are moved back to the branch 64 due to the force of the ejection spring.
  • FIG. 5 the locking mechanism is shown in an exploded view.
  • the head section 7 has, on the side facing away from the run-on slope 74, a contact surface 77 against which one end of the spring 8 rests.
  • the head portion 7 is slidably held in a strip-shaped receptacle 11 of the housing 6 in the longitudinal direction.
  • the head portion 7 has a downwardly projecting pin 78 which is held in a slot 69 on the housing 6.
  • a projection 76 is formed on the head portion 7, which abuts against a side wall 16 of the housing 6.
  • a resilient wall portion 67 is further formed, which defines a channel portion 66 adjacent to the projection 60.
  • the resilient wall portion 67 is disposed adjacent to a recess 68, so that act on a lower opening movement on the switching element 9 lower impact forces.
  • the head portion 7 can act as a pawl even with an unlocking of the switching element 9 in a movement of the detent recess 61, which prevents movement of the switching element 9 back into the detent recess 61.
  • the switching element 9 must move the head portion 7 slightly in the closing direction during a movement in the closing direction for an unlocking and thereby pivot in the receptacle 75 of the head portion 7.
  • the head portion 7 is moved back to the locking recess 61 after unlocking, wherein the distance between the starting slope 74 and a tip 17 is selected on the projection 60 so that it is smaller than the diameter of the angled end portion 10 is.
  • the switching element 9 after unlocking also not accidentally get into the detent recess 61.
  • the distance between the projection 73 and the projection 60 on the housing 6 is dimensioned so that the switching element 9 can be moved with the angled end portion 10 in the catch recess 61, even if the switching element 7 is arranged in an end position and by the spring 8 is biased in this end position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Description

Die vorliegende Erfindung betrifft einen Rastmechanismus, insbesondere für eine Ausstoßvorrichtung, mit einem Schaltelement, das entlang einer Kulissenführung in einem Gehäuse verfahrbar ist und an einem Vorsprung mit einer Rastmulde durch die Kraft einer Ausstoßfeder verrastbar ist.The present invention relates to a locking mechanism, in particular for an ejection device, with a switching element which is movable along a slotted guide in a housing and can be latched to a projection with a detent recess by the force of an ejection spring.

Die EP 743 032 offenbart einen Rastmechanismus für eine Schubkastenauszugsführung, bei der ein Schaltelement entlang einer Kulissenführung verfahrbar gelagert ist. Dabei kann das Schaltelement an einer Rastmulde durch die Kraft einer Feder verrastet werden. Zum Entriegeln kann das Schaltelement zunächst um eine kleine Wegstrecke in Schließrichtung verfahren werden, so dass das Schaltelement an einer Anlaufschräge verschwenkt wird und dann entlang der Kulissenführung verfahren werden kann. Bei einem solchen Rastmechanismus ist nachteilig, dass die Wegstrecke zum Entriegeln des Rastmechanismus vergleichsweise groß ist, denn zunächst muss das Schaltelement von der Rastmulde zu der gegenüberliegenden Anlaufschräge verfahren werden, bevor das Schaltelement dann durch Verfahren entlang der Anlaufschräge verschwenkt werden kann. Zudem besteht das Risiko, dass im Bereich einer Abzweigung der Kulissenführung das Schaltelement in einen falschen Bereich gelangt und dann die Funktion des Rastens und Entriegelns nicht ausgeführt werden kann.The EP 743,032 discloses a latching mechanism for a drawer slide in which a switching element is movably mounted along a slotted guide. In this case, the switching element can be latched to a detent recess by the force of a spring. To unlock the switching element can first be moved by a small distance in the closing direction, so that the switching element is pivoted on a run-up slope and then can be moved along the slotted guide. In such a latching mechanism is disadvantageous that the distance to unlock the locking mechanism is comparatively large, because first, the switching element must be moved from the detent recess to the opposite run-on slope before the switching element can then be pivoted by methods along the run-up slope. In addition, there is the risk that in the region of a branch of the slotted guide the switching element gets into a wrong area and then the function of ratcheting and unlocking can not be performed.

Es ist daher Aufgabe der vorliegenden Erfindung, einen Rastmechanismus zu schaffen, der ein Entriegeln mit sehr kurzen Schaltwegen für das Schaltelement ermöglicht.It is therefore an object of the present invention to provide a latching mechanism that allows unlocking with very short switching paths for the switching element.

Diese Aufgabe wird mit einem Rastmechanismus mit den Merkmalen des Anspruches 1 gelöst.This object is achieved with a locking mechanism having the features of claim 1.

Erfindungsgemäß ist an dem Gehäuse ein bewegbar gelagerter Kopfabschnitt mit einer der Rastmulde gegenüberliegenden Anlaufschräge vorgesehen, der zu der Rastmulde hin vorgespannt ist. Dadurch kann der Kopfabschnitt in der verrasteten Position des Schaltelementes benachbart zu dem Schaltelement angeordnet werden, vorzugsweise auch an dem Schaltelement anliegend, so dass bei einer Bewegung des Schaltelementes in Schließrichtung das Schaltelement umgehend entriegelt wird und mit minimalem Verfahrweg eine solche Entriegelung realisiert werden kann. Dabei kann der Kopfabschnitt mit der Anlaufschräge auch mit einer Vorspannung an dem Schaltelement anliegen, so dass dieses mit einer geringen Schaltbewegung, beispielsweise durch Eindrücken eines Schubkastens, seitlich verschwenkt und entriegelt werden kann.According to the invention, a movably mounted head section is provided on the housing with a starting bevel opposite the detent recess, which is biased towards the detent recess. Thereby, the head portion can be arranged in the latched position of the switching element adjacent to the switching element, preferably also applied to the switching element, so that upon movement of the switching element in the closing direction, the switching element is unlocked immediately and with minimal travel such unlocking can be realized. In this case, the head section with the starting bevel can also be in contact with the switching element with a bias, in this case that this can be laterally pivoted and unlocked with a small switching movement, for example by pushing a drawer.

Vorzugsweise ist der Kopfabschnitt durch eine Feder vorgespannt, die sich an dem Gehäuse der Kulissenführung abstützt. Dadurch kann der Rastmechanismus besonders kompakt aufgebaut werden, wobei Kopfabschnitt und Feder in das Gehäuse integriert werden. Die Kulissenführung kann dabei durch nutförmige Kanäle in dem Gehäuse ausgebildet sein, wobei der Kopfabschnitt ein Ende der Kulissenführung bildet und Anschlagsflächen für das Schaltelement ausbildet.Preferably, the head portion is biased by a spring which is supported on the housing of the slotted guide. As a result, the latching mechanism can be made particularly compact, with head section and spring being integrated into the housing. The slotted guide can be formed by groove-shaped channels in the housing, wherein the head portion forms one end of the slotted guide and forms stop surfaces for the switching element.

Gemäß einer weiteren Ausgestaltung der Erfindung weist der Kopfabschnitt einen Schenkel auf, der in einen Einführkanal der Kulissenführung eingreift und durch das Schaltelement verschiebbar ist. Der Schenkel des Kopfabschnittes kann dadurch als eine Art Sperrklinke wirken, die das Schaltelement nur in eine Richtung passieren lässt und in die gegenüberliegende Richtung eine Bewegung des Schaltelementes verhindert. Hierfür verschließt der Schenkel den Einführkanal in einer ersten Position und gibt den Einführkanal in einer verschobenen zweiten Position zu dem Bereich mit der Rastmulde frei. Wenn das Schaltelement den Kopfabschnitt durch einen Druck auf eine Anlagefläche an dem Schenkel verschiebt, kann das Schaltelement nach Verlassen der Anlagefläche an der Rastmulde verrasten und der Kopfabschnitt wird aufgrund der Federkraft wieder zurückbewegt, so dass der Schenkel den Einfahrkanal verschließt. Dadurch wird verhindert, dass das Schaltelement versehentlich nicht an der Rastmulde einrastet und die Funktionalität des Rastmechanismus beeinträchtigt wird.According to a further embodiment of the invention, the head portion on a leg which engages in an insertion channel of the slotted guide and is displaceable by the switching element. The leg of the head portion can thereby act as a kind of pawl, which allows the switching element to pass only in one direction and prevents movement of the switching element in the opposite direction. For this purpose, the leg closes the insertion channel in a first position and releases the insertion channel in a displaced second position to the region with the detent recess. If the switching element displaces the head section by a pressure on a contact surface on the leg, the switching element can latch after leaving the contact surface on the detent recess and the head section is moved back again due to the spring force, so that the leg closes the retraction channel. This prevents that the switching element accidentally does not latch on the detent recess and the functionality of the locking mechanism is impaired.

Der Kopfabschnitt ist vorzugsweise linear zwischen zwei Anschlägen verschiebbar gelagert, beispielsweise weist der Kopfabschnitt einen Zapfen auf, der in ein Langloch an dem Gehäuse eingreift. Dabei kann der Schiebeweg des Kopfabschnittes so bemessen sein, dass das Schaltelement nahezu formschlüssig an der Rastmulde gehalten ist und bei einer Bewegung zu der Anlaufschräge des Kopfabschnittes umgehend verschwenkt wird. Das Schaltelement kann dabei als Draht ausgebildet sein, der mit einem abgebogenen Endabschnitt in die Kulissenführung eingreift.The head portion is preferably mounted linearly displaceable between two stops, for example, the head portion has a pin which engages in a slot on the housing. In this case, the sliding path of the head portion may be dimensioned so that the switching element is held almost positively on the detent recess and is pivoted immediately upon movement to the run-on slope of the head portion. The switching element may be formed as a wire, which engages with a bent end portion in the slotted guide.

Der erfindungsgemäße Rastmechanismus wird vorzugsweise bei Möbelbeschlägen, insbesondere bei Auszugsführungen, eingesetzt. Dabei kann beispielsweise ein Schubkasten in einer geschlossenen Position verrastet werden, um dann bei einer Entriegelung des Rastmechanismus in Öffnungsrichtung durch die Kraft der Ausstoßfeder ausgestoßen zu werden. Aber auch andere Anwendungsfälle für den Rastmechanismus sind möglich.The locking mechanism according to the invention is preferably used in furniture fittings, in particular in drawer guides. In this case, for example, a drawer can be locked in a closed position, in order then to be ejected in an unlocking of the locking mechanism in the opening direction by the force of the ejection spring. But other applications for the locking mechanism are possible.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die beigefügten Zeichnungen näher erläutert. Es zeigen:

Figur 1
eine perspektivische Ansicht einer Ausstoßvorrichtung mit einem erfindungsgemäßen Rastmechanismus;
Figur 2
eine Draufsicht auf die Ausstoßvorrichtung der Figur 1;
Figur 3
eine Ansicht der Kulissenführung des Rastmechanismus;
Figur 4
eine vergrößerte Detailansicht des Rastmechanismus mit Schaltelement;
Figur 5
eine perspektivische Detaildarsteilung des Rastmechanismus, und
Figur 6
eine perspektivische Detailansicht des Rastmechanismus.
The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:
FIG. 1
a perspective view of an ejection device with a locking mechanism according to the invention;
FIG. 2
a plan view of the ejection device of FIG. 1 ;
FIG. 3
a view of the slotted guide of the locking mechanism;
FIG. 4
an enlarged detail view of the locking mechanism with switching element;
FIG. 5
a perspective detail of the detent mechanism, and
FIG. 6
a detailed perspective view of the locking mechanism.

Eine Ausstoßvorrichtung 1 umfasst einen Montagekörper 2, an dem ein Mitnehmer 4 verfahrbar gelagert ist. Der Mitnehmer 4 ist über eine Einzugsfeder in Schließrichtung vorgespannt, wobei die Einzugsfeder 3 an einem Ende am Mitnehmer 4 und am anderen Ende an dem Montagekörper 2 festgelegt ist. Der Mitnehmer 4 ist entlang einer Führungsbahn an dem Montagekörper 2 verfahrbar gelagert und kann mit einem Möbelteil, beispielsweise einer Schiene einer Auszugsführung, gekoppelt sein, um als Selbsteinzug zu wirken. Um die Bewegung beim Schließen des Möbelteils zu dämpfen, kann auch ein Dämpfer an dem Montagekörper 2 montiert sein. Bevorzugt bewirkt der Mitnehmer 4 ein sicheres Einlaufen eines Aktivators in ein Verriegelungssystem.An ejection device 1 comprises a mounting body 2, on which a driver 4 is movably mounted. The driver 4 is biased by a pull-in spring in the closing direction, wherein the pull-in spring 3 is fixed at one end to the driver 4 and at the other end to the mounting body 2. The driver 4 is movably mounted along a guideway to the mounting body 2 and may be coupled to a furniture part, such as a rail of a pullout guide, to act as a self-closing. In order to dampen the movement when closing the furniture part, a damper may be mounted on the mounting body 2. Preferably, the driver 4 causes a safe entry of an activator in a locking system.

Ferner ist an dem Montagekörper 2 ein Ausstoßer 13 verfahrbar gelagert, der in einer Schließposition des Möbelteils über einen Rastmechanismus verrastbar ist. Der Ausstoßer 13 ist über eine Ausstoßfeder in Öffnungsrichtung vorgespannt, die in einem Federgehäuse 5 angeordnet ist.Further, an ejector 13 is movably mounted on the mounting body 2, which is latched in a closed position of the furniture part via a latching mechanism. The ejector 13 is biased via an ejection spring in the opening direction, which is arranged in a spring housing 5.

Um das mit dem Mitnehmer 4 gekoppelte Möbelteil in einer Schließposition zu verrasten, ist ein Rastmechanismus mit einem Gehäuse 6 vorgesehen, an dem ein Kopfabschnitt 7 verschiebbar gelagert ist. Wie in Figur 2 gezeigt ist, befindet sich in dem Gehäuse 6 eine Kulissenführung, in der ein Schaltelement 9 verfahrbar gelagert ist. Das Schaltelement 9 ist als Draht ausgebildet, der mit einem abgewinkelten Endabschnitt 10 in die Kulissenführung eingreift. Das Schaltelement 9 ist auf der gegenüberliegenden Seite mit dem Mitnehmer 4 gekoppelt.In order to lock the coupled with the driver 4 furniture part in a closed position, a latching mechanism is provided with a housing 6, on which a head portion 7 is slidably mounted. As in FIG. 2 is shown in the housing 6 is a slotted guide, in which a switching element 9 is movably mounted. The switching element 9 is formed as a wire which engages with an angled end portion 10 in the slotted guide. The switching element 9 is coupled on the opposite side with the driver 4.

In Figur 3 ist das Gehäuse 6 mit der Kulissenführung im Detail dargestellt. Die Kulissenführung ist durch nutförmige Kanäle gebildet, die integral mit dem Gehäuse 6 aus Kunststoff ausgebildet sind. An dem Gehäuse 6 ist ein Vorsprung 80 mit einer Rastmulde 61 angeordnet. Die Kulissenführung umfasst einen schlaufenförmigen Abschnitt mit einem Einfahrkanal 62, der den abgebogenen Endabschnitt 10 des Schaltelementes 9 zu der Rastmulde 61 führt. Das Schaltelement 9 kann anschließend durch eine Zwangsführung durch den Kopfabschnitt 7 in einen Ausfahrkanal 63 verschoben werden und dann durch die Kraft der Ausstoßfeder zu einer Abzweigung 64 bewegt werden, so dass der Vorsprung 60 durch das Schaltelement an dem schlaufenförmigen Abschnitt umfahren wird. Von der Abzweigung 64 kann das Schaltelement 9 entlang eines Auslaufes 65 bewegt werden.In FIG. 3 the housing 6 is shown in detail with the slide guide. The slotted guide is formed by groove-shaped channels, which are formed integrally with the housing 6 made of plastic. On the housing 6, a projection 80 is arranged with a detent recess 61. The slotted guide comprises a loop-shaped portion with a retraction channel 62, which leads the bent end portion 10 of the switching element 9 to the detent recess 61. The switching element 9 can then be moved by a positive guide through the head portion 7 in an extension channel 63 and then moved by the force of the ejection spring to a junction 64, so that the projection 60 is bypassed by the switching element on the loop-shaped portion. From the branch 64, the switching element 9 can be moved along an outlet 65.

In Figur 4 ist der Rastmechanismus mit dem Schaltelement 9 gezeigt. Bei einer Schließbewegung bewegt sich das Schaltelement 9 von der Abzweigung 64 zu dem Kopfabschnitt 7, wobei ein Schenkel 70 in den Einfahrkanal 62 eingefügt ist und diesen verschließt. Das Schaltelement 9 muss mit dem abgewinkelten Endabschnitt 10 daher zunächst an eine Kontaktfläche 71 an dem Schenkel 70 angreifen, um den Kopfabschnitt 7 zu verschieben, um dann zu dem Bereich mit der Rastmulde 61 zu gelangen. Die Kontaktfläche 71 ist dabei schräg zur Längsrichtung des Gehäuses 6 angeordnet, so dass das Schaltelement 9 an die Kontaktfläche 71 und eine Seitenfläche des Vorsprungs 60 drückt. Dabei wird der Kopfabschnitt 7 in Längsrichtung des Gehäuses verschoben und das Schaltelement 9 kann in eine Aufnahme 72 an dem Kopfabschnitt 7 gelangen. Der Kopfabschnitt 7 wird nun durch die Kraft einer Feder 8 wieder zurück bewegt, so dass der Schenkel 70 den Einfahrkanal 62 verschließt. Dadurch wird verhindert, dass das Schaltelement 9 versehentlich wieder in den Einfahrkanal 62 gelangt.In FIG. 4 the locking mechanism is shown with the switching element 9. During a closing movement, the switching element 9 moves from the branch 64 to the head portion 7, wherein a leg 70 is inserted into the insertion channel 62 and closes it. The switching element 9 must therefore initially engage with the angled end section 10 on a contact surface 71 on the leg 70 in order to displace the head section 7 in order then to reach the region with the detent recess 61. The contact surface 71 is arranged obliquely to the longitudinal direction of the housing 6, so that the switching element 9 presses against the contact surface 71 and a side surface of the projection 60. In this case, the head portion 7 is displaced in the longitudinal direction of the housing and the switching element 9 can reach into a receptacle 72 on the head portion 7. The head section 7 is now moved back again by the force of a spring 8, so that the leg 70 closes the entry channel 62. This prevents that the switching element 9 accidentally gets back into the entry channel 62.

Das Schaltelement 9 wird nun aufgrund der Kraft der Ausstoßfeder in Öffnungsrichtung gezogen, also nach links in Figur 4. Dadurch wird der abgewinkelte Endabschnitt 10 an der Rastmulde 61 verrastet.The switching element 9 is now pulled in the opening direction due to the force of the ejection spring, ie to the left in FIG. 4 , As a result, the angled end portion 10 is latched to the detent recess 61.

Der Kopfabschnitt 7 weist eine Anlaufschräge 74 auf, die gegenüber der Rastmulde 61 angeordnet ist. Die Anlaufschräge 74 ist dabei an einem Vorsprung 73 ausgebildet, dessen Spitze versetzt zu der Rastmulde 61 angeordnet ist, so dass bei einer Bewegung des Schaltelementes 9 in Schließrichtung, also nach rechts in Figur 4, der abgebogene Endabschnitt 10 des Schaltelementes an der Anlaufschräge 74 anliegt und das Schaltelement 9 verschwenkt wird. Hierfür ist an dem Kopfabschnitt 7 benachbart zu der Anlaufschräge 74 eine Aufnahme 75 ausgebildet, an der der Ausfahrkanal 63 an dem Gehäuse 6 beginnt. Erreicht das Schaltelement 9 die Aufnahme 75, kann das Schaltelement. 9 aufgrund der Kraft der Ausstoßfeder wieder zu der Abzweigung 64 bewegt werden.The head portion 7 has a run-on slope 74, which is arranged opposite the detent recess 61. The run-on slope 74 is formed on a projection 73, whose tip is arranged offset to the detent recess 61, so that upon movement of the switching element 9 in the closing direction, ie to the right in FIG. 4 , the bent end portion 10 of the switching element rests against the run-on slope 74 and the switching element 9 is pivoted. For this purpose, a receptacle 75 is formed on the head portion 7 adjacent to the run-on slope 74, on which the extension channel 63 begins on the housing 6. If the switching element 9 reaches the receptacle 75, the switching element can. 9 are moved back to the branch 64 due to the force of the ejection spring.

In Figur 5 ist der Rastmechanismus in einer Explosionsdarstellung gezeigt. Der Kopfabschnitt 7 weist auf der zur Anlaufschräge 74 abgewandten Seite eine Kontaktfläche 77 auf, an der ein Ende der Feder 8 anliegt. Der Kopfabschnitt 7 ist in einer leistenförmigen Aufnahme 11 des Gehäuses 6 in Längsrichtung verschiebbar gehalten. Um die Bewegung des Kopfabschnittes 7 zu begrenzen, weist der Kopfabschnitt 7 einen nach unten hervorstehenden Zapfen 78 auf, der in einem Langloch 69 an dem Gehäuse 6 gehalten ist. Ferner ist an dem Kopfabschnitt 7 ein Vorsprung 76 ausgebildet, der an einer Seitenwand 16 des Gehäuses 6 anliegt.In FIG. 5 the locking mechanism is shown in an exploded view. The head section 7 has, on the side facing away from the run-on slope 74, a contact surface 77 against which one end of the spring 8 rests. The head portion 7 is slidably held in a strip-shaped receptacle 11 of the housing 6 in the longitudinal direction. In order to limit the movement of the head portion 7, the head portion 7 has a downwardly projecting pin 78 which is held in a slot 69 on the housing 6. Further, a projection 76 is formed on the head portion 7, which abuts against a side wall 16 of the housing 6.

In dem Ausfahrkanal 63 ist ferner ein federnder Wandabschnitt 67 gebildet, der einen Kanalabschnitt 66 benachbart zu dem Vorsprung 60 begrenzt. Der federnde Wandabschnitt 67 ist benachbart zu einer Aussparung 68 angeordnet, so dass bei einer schnellen Öffnungsbewegung auf das Schaltelement 9 geringere Stoßkräfte wirken.In the extension channel 63, a resilient wall portion 67 is further formed, which defines a channel portion 66 adjacent to the projection 60. The resilient wall portion 67 is disposed adjacent to a recess 68, so that act on a lower opening movement on the switching element 9 lower impact forces.

Bei dem gezeigten Ausführungsbeispiel kann der Kopfabschnitt 7 auch bei einer Entriegelung des Schaltelementes 9 bei einer Bewegung aus der Rastmulde 61 als Sperrklinke wirken, die eine Bewegung des Schaltelementes 9 zurück in die Rastmulde 61 verhindert. Hierfür muss das Schaltelement 9 bei einer Bewegung in Schließrichtung für einen Entriegelungsvorgang den Kopfabschnitt 7 geringfügig in Schließrichtung verschieben und dabei in die Aufnahme 75 des Kopfabschnittes 7 verschwenken. Durch die Kraft der Feder 8 wird der Kopfabschnitt 7 nach der Entriegelung wieder zu der Rastmulde 61 hin verschoben, wobei der Abstand zwischen Anlaufschräge 74 und einer Spitze 17 an dem Vorsprung 60 so gewählt ist, dass er kleiner als der Durchmesser des abgewinkelten Endabschnittes 10 ist. Dadurch kann das Schaltelement 9 nach einer Entriegelung auch nicht mehrversehentlich in die Rastmulde 61 gelangen.In the embodiment shown, the head portion 7 can act as a pawl even with an unlocking of the switching element 9 in a movement of the detent recess 61, which prevents movement of the switching element 9 back into the detent recess 61. For this purpose, the switching element 9 must move the head portion 7 slightly in the closing direction during a movement in the closing direction for an unlocking and thereby pivot in the receptacle 75 of the head portion 7. By the force of the spring 8, the head portion 7 is moved back to the locking recess 61 after unlocking, wherein the distance between the starting slope 74 and a tip 17 is selected on the projection 60 so that it is smaller than the diameter of the angled end portion 10 is. As a result, the switching element 9 after unlocking also not accidentally get into the detent recess 61.

Der Abstand zwischen dem Vorsprung 73 und dem Vorsprung 60 an dem Gehäuse 6 ist dabei so bemessen, dass das Schaltelement 9 mit dem abgewinkelten Endabschnitt 10 in die Rastmulde 61 bewegt werden kann, auch wenn das Schaltelement 7 in einer Endposition angeordnet ist und durch die Feder 8 in diese Endposition vorgespannt wird.The distance between the projection 73 and the projection 60 on the housing 6 is dimensioned so that the switching element 9 can be moved with the angled end portion 10 in the catch recess 61, even if the switching element 7 is arranged in an end position and by the spring 8 is biased in this end position.

Bezugszeichenreference numeral

11
Ausstoßvorrichtungejector
22
Montagekörpermounting body
33
EinzugsfederPick spring
44
Mitnehmertakeaway
55
Federgehäusespring housing
66
Gehäusecasing
77
Kopfabschnittheader
88th
Federfeather
99
Schaltelementswitching element
1010
Endabschnittend
1111
Aufnahmeadmission
1313
Ausstoßerejector
1616
SeitenwandSide wall
1717
Spitzetop
6060
Vorsprunghead Start
6161
Rastmuldecatch recess
6262
EinfahrkanalEinfahrkanal
6363
AusfahrkanalAusfahrkanal
6464
Abzweigungdiversion
6565
Auslaufoutlet
6666
Kanalabschnittchannel section
6767
Wandabschnittwall section
6868
Aussparungrecess
6969
LanglochLong hole
7070
Schenkelleg
7171
Kontaktflächecontact area
7272
Aufnahmeadmission
7373
Vorsprunghead Start
7474
Anlaufschrägestarting slope
7575
Aufnahmeadmission
7676
Vorsprunghead Start
7777
Kontaktflächecontact area
7878
Zapfenspigot

Claims (10)

  1. Latching mechanism, in particular for a pushing-out device (1), having a switching element (9) which can be displaced along a guide track in a housing (6) and can be latched on a protrusion (60) with a latching hollow (61) by the force of a pushing-out spring, characterized in that the housing (6) has provided on it a movably mounted head portion (7) with a run-on slope (74), which is located opposite the latching hollow (61) and is prestressed in the direction of the latching hollow (61).
  2. Latching mechanism according to Claim 1, characterized in that the head portion (7) is prestressed by a spring (8) which is supported on the housing (6) of the guide track.
  3. Latching mechanism according to Claim 1 or 2, characterized in that the guide track is formed by groove-like channels in the housing (6), and the head portion (7) forms stop surfaces at one end of the guide track.
  4. Latching mechanism according to one of the preceding claims, characterized in that the head portion (7) has a limb (70) which engages in an entry channel (62) of the guide track and can be displaced by the switching element (9).
  5. Latching mechanism according to Claim 4, characterized in that the limb (70), in a first position, closes the entry channel (62) and, in an advanced, second position, opens the entry channel (62) in the direction of the latching hollow (61).
  6. Latching mechanism according to one of the preceding claims, characterized in that the limb (70), following movement by the switching element (9), is moved again into the entry channel (62) by the spring (8), and this closes the path for the switching element (9) into the entry channel (62).
  7. Latching mechanism according to one of the preceding claims, characterized in that the head portion (7) is mounted such that it can be displaced linearly between two stops.
  8. Latching mechanism according to Claim 7, characterized in that the head portion (7) has a stub (78), which engages in a slot (69) in the housing (6).
  9. Latching mechanism according to one of the preceding claims, characterized in that the switching element (9) is formed by a wire which engages in the guide track with a bent end portion (10).
  10. Latching mechanism according to one of the preceding claims, characterized in that the head portion (7) forms a mount (75), into which the switching element (9) can be introduced following movement out of the latching hollow (61).
EP11729295.3A 2010-06-30 2011-06-29 Latching mechanism Active EP2587963B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010017666A DE102010017666A1 (en) 2010-06-30 2010-06-30 detent mechanism
PCT/EP2011/060943 WO2012001069A1 (en) 2010-06-30 2011-06-29 Latching mechanism

Publications (2)

Publication Number Publication Date
EP2587963A1 EP2587963A1 (en) 2013-05-08
EP2587963B1 true EP2587963B1 (en) 2014-07-23

Family

ID=44627852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11729295.3A Active EP2587963B1 (en) 2010-06-30 2011-06-29 Latching mechanism

Country Status (3)

Country Link
EP (1) EP2587963B1 (en)
DE (1) DE102010017666A1 (en)
WO (1) WO2012001069A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20121333A1 (en) * 2012-07-31 2014-02-01 Salice Arturo Spa MOBILE WITH AT LEAST ONE DRAWER OR SIMILAR PROVIDED FOR MEANS OF EJECTION
DE202012009762U1 (en) 2012-10-12 2014-01-21 Grass Gmbh Device for opening and closing a movable furniture part
AT515040B1 (en) * 2013-10-25 2017-12-15 Blum Gmbh Julius Drive device for a movable furniture part
TWI538638B (en) * 2015-11-12 2016-06-21 川湖科技股份有限公司 Drive mechanism and method for furniture parts

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29507917U1 (en) * 1995-05-17 1995-08-17 Hettich Paul Gmbh & Co Drawer drawer slide
TWI320703B (en) * 2005-10-25 2010-02-21 Accuride Int Inc Drawer slide with push-latch device
DE202008013230U1 (en) * 2008-10-08 2010-02-25 Paul Hettich Gmbh & Co. Kg Opening device for a pull-out guide

Also Published As

Publication number Publication date
EP2587963A1 (en) 2013-05-08
DE102010017666A1 (en) 2012-01-05
WO2012001069A1 (en) 2012-01-05

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