EP0391238A2 - Means for holding a pivoting panel - Google Patents

Means for holding a pivoting panel Download PDF

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Publication number
EP0391238A2
EP0391238A2 EP90105951A EP90105951A EP0391238A2 EP 0391238 A2 EP0391238 A2 EP 0391238A2 EP 90105951 A EP90105951 A EP 90105951A EP 90105951 A EP90105951 A EP 90105951A EP 0391238 A2 EP0391238 A2 EP 0391238A2
Authority
EP
European Patent Office
Prior art keywords
guide rail
indentation
pin
groove
link
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.)
Granted
Application number
EP90105951A
Other languages
German (de)
French (fr)
Other versions
EP0391238B1 (en
EP0391238A3 (en
Inventor
Horst Wiedehage
Peter Christ
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.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP0391238A2 publication Critical patent/EP0391238A2/en
Publication of EP0391238A3 publication Critical patent/EP0391238A3/en
Application granted granted Critical
Publication of EP0391238B1 publication Critical patent/EP0391238B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/08—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing with special means for release, e.g. automatic release by further opening
    • E05C17/085—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing with special means for release, e.g. automatic release by further opening automatic release by further opening
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
    • E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
    • E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
    • E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
    • E05C17/16—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod pivoted only at one end and having an elongated slot
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/04—Automatic release latches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/28—Extension link
    • Y10T292/289—Slotted bar

Definitions

  • the invention relates to a device for locking a folding part which can be pivoted about an axis, in particular a window or roof hatch of a vehicle which can be pivoted out into at least one position.
  • Folding parts e.g. Windows or skylights application that can be placed in different positions. In these positions, the folding parts are determined in such a way that the folding part does not swivel unintentionally, even when the vehicle is shaken or the wind is blowing.
  • both hands In order to bring a folding part into a new position and to lock it there, usually both hands have to be used. For example, one hand grips a handle to swing the folding part out, while the other hand operates a locking mechanism. This type of operation is cumbersome and uncomfortable, especially when the folding part or its locking mechanism is difficult to access.
  • a roof hatch for a commercial vehicle has become known, the hatch cover can be brought into different opening positions and locked there.
  • a backdrop with several latching positions designed as bulges is attached to the hatch cover, in which the pin of a locking lever articulated in the roof cutout engages.
  • the pin is braced on one side in the direction of the bulges by an M-shaped leaf spring. This is intended to enable the pin and thus the hatch cover to be securely latched in, so that the latching position is maintained even when shaken.
  • the object underlying the invention is seen in designing a locking device of the type mentioned in such a way that it enables the reliable locking of a folding part even in the event of vibrations in predetermined locking positions, is simple to produce and is easy to use.
  • the object is achieved in that at least one guide rail with an approximately longitudinal groove, which has at least one indentation, is arranged between the folding part and a receiving part, that the guide rail is pivotally mounted at one end on one of the parts and in its groove with one the other part (folding part or receiving part) connected slidably receives, and that a slidable along the guide rail is provided.
  • This backdrop is designed such that it usually covers the indentation of the guide rail and only releases it when it reaches a locking position, so that in this position the pin can engage in the indentation of the guide rail and can be supported on a side surface of the indentation.
  • the pin slides along the groove until it reaches an indentation. If this indentation is not covered by the backdrop, the pin slides into the indentation and is supported on a side surface of the indentation, as a result of which the folding part is held in this position.
  • It is a form-fitting connection, which is taken only by pivoting the folding part, which can be done with one hand can be done by operating a handle attached to the folding part.
  • the positive connection is preferable to a frictional connection, since it adjusts itself automatically without additional measures (second hand), and ensures reliable locking even in the event of strong vibrations and shocks and, if necessary, in the event of a headwind. If, however, the indentation is covered by the backdrop, there is no locking here. Rather, the folding part can be pivoted further, the pin sliding further along the groove until it reaches a further indentation or the groove end, if necessary.
  • the locking device according to the invention can be implemented inexpensively by simple stamped or bent parts and takes up very little space. It can be in an area inaccessible to the operator since no direct actuation of the mechanism is required.
  • This locking device can be used particularly advantageously in the case of front or rear windows or in the roof hatches of vehicles, in particular of work vehicles such as agricultural tractors, which are to be kept open in various positions.
  • An arrangement of the guide rail parallel to a gas spring, the gas pressure of which is used to provide the opening pressure for the folding part, is particularly advantageous.
  • the link also preferably has a longitudinal groove with an indentation, the shape of which corresponds to the indentation in the guide rail groove and into which the pin also engages.
  • the link groove is shorter than the guide rail groove, so that when the folding part is opened and closed, the ends of the link groove are quickly reached and the link is moved along the guide rail by the pin. This displacement allows the indentations of the guide rail and the link to be covered so that the pin can engage in these indentations and effect the locking.
  • the guide rail can be arranged so that it pivots due to the force of gravity acting on it about its pivot bearing position when it reaches the locking position such that the pin engages in overlapping indentations.
  • this pivoting movement can also advantageously be brought about and supported by attaching a spring, preferably a torsion spring.
  • the indentation is expediently designed asymmetrically and has a recessed and an obliquely tapering side flank.
  • the recessed flank picks up the pin in the locking position and prevents the guide rail from jumping out of the locking position and preventing the folding part from moving further (e.g. opening). If the locking device is designed such that a further opening of the folding part in the locking position is positively avoided, then the recessed flank will expediently be located on the side of the indentation facing away from the pivot bearing point of the guide rail.
  • the link can preferably only be moved by overcoming sliding friction forces.
  • resilient tabs can be formed on the backdrop, which resiliently abut the guide rail and produce a frictional connection.
  • At least one power drive generating a pivoting force is arranged between the folding part and the receiving part and, in a locking position, presses the pin against the recessed flank of the indentation.
  • the power drive is, for example, a hydraulic or mechanical spring element, for example a hydraulic cylinder or a gas spring. The latter is a cheap, commercially available component.
  • the power drive is designed so that, depending on the application, it can pivot the folding part away from or towards the receiving part. With skylights, it is advisable to use the driving force to open the hatch. In the locking position, the recessed flank of the indentation prevents further opening due to the effect of the power drive.
  • the locking device and the power drive are preferably arranged approximately in parallel and essentially designed as an assemblable structural unit.
  • the driving force is dimensioned such that it is sufficient to pivot the pivoting part into its maximum position, for example against gravity.
  • the swivel part should also be held reliably in the event of vibrations or, where appropriate, wind. It is advantageous if the driving force is 1.7 times the value that would be required to keep the folding part in its maximum position in equilibrium.
  • the force that can be applied by hand to pivot the folding part must be taken into account.
  • gravity can also be used in some cases to preload the folding part in the direction of a pivoted-out position.
  • the invention further relates to the roof hatch of a vehicle, in particular an agricultural or construction vehicle, with a locking device according to the invention.
  • FIG. 1 shows the detail of an agricultural tractor roof 10 into which a roof hatch 12 is embedded.
  • the roof hatch 12 is shown in the half-open position. It can be pivoted about an axis, which is formed by two hinges 14, relative to the frame part 16, which is defined in the roof 10 and is designed as a receiving part.
  • the frame part 16 In the frame part 16, the usual sealing elements are integrated, which allow a rainproof closure.
  • the roof hatch 12 can be opened and closed from the inside by gripping with one hand a handle which is arranged on the hatch surface and is not visible in the figure and is actuated in the vertical direction.
  • the locking device 18 according to the invention is indicated between the frame part 16 and a frame of the roof hatch 12 (not shown in more detail). If necessary, a second locking device can be attached parallel to this locking device 18 on the other side of the roof hatch 12.
  • the locking device 18 is shown in more detail in FIG. 2. It essentially consists of a gas spring 20, a guide rail 22 and a link 24. The guide rail 22 and the link 24 are shown in detail in FIGS. 3 to 6.
  • the gas spring consists essentially of a gas pressure cylinder 26 and a piston rod 28.
  • the free end of the gas pressure cylinder 26 carries a tab 30 which is articulated by means of a bolt 32 with two tabs 34, 36 fastened to the frame of the roof hatch 12.
  • the free end of the piston rod 28 also carries a tab 38 which is pivotally mounted by means of a bolt 40 between two tabs 42, 44 fastened to the frame part 16 of the outer roof.
  • the gas spring 20 is biased such that it strives to push the piston rod 28 out of the gas pressure cylinder 26. It thus applies a pivoting force that opens a non-locked roof hatch 12 and holds it in an open position.
  • the spring force of the gas spring 20 is designed such that it is greater by a factor of 1.7 than the minimum force required to open the roof hatch 12.
  • the guide rail 22 is arranged between the pin 48 and the bolt 40. 5 and 6 show, the guide rail 22 consists essentially of a flat metal strip which has a bore 50 at one end.
  • a longitudinally extending groove 52 extends approximately over the entire length of the guide rail 22.
  • This groove 52 has an indentation 54 on one side.
  • the indentation 54 is designed asymmetrically. Its flank 56 facing the bore 50 is designed such that the indentation 54 runs obliquely into the groove 52.
  • the opposite other flank 58 is designed to spring back, so that a protruding nose 60 forms between indentation 54 and groove 52.
  • the bore 50 receives the bolt 40, so that the guide rail 22 can be pivoted about this bolt 40.
  • the pin 48 is slidably disposed in the groove 52.
  • a lock washer 62 is attached to the outer end of the pin to prevent the guide rail 22 from sliding off the pin 48.
  • 3 and 4 represent the backdrop 24. It is a part formed from sheet metal, which is essentially C-shaped in cross section (FIG. 4).
  • the link 24 can be pushed in the longitudinal direction over the guide rail 22, so that the two free legs 64, 66 engage around the guide rail 22.
  • the link 24 In its base part 68, the link 24 has a groove 70 which extends essentially over its entire length. This groove 70 corresponds to the groove 52 of the guide rail 22, even if it is not quite as long overall.
  • the groove 70 widens into an indentation 72.
  • This indentation 72 is designed in terms of its width and its steep flank 74 corresponding to the indentation 54 of the guide rail 22, even if the special design of the nose 60 can be omitted in the setting 24.
  • the indentations 54, 72 lie on the upward-facing side of the guide rail 22 or the link 24.
  • the pin 48 reaches these indentations 54, 72, the guide rail 22 tilts somewhat downwards due to its gravity, so that the Pen 48 penetrates into the area of the indentation 54, 72.
  • a torsion spring 84 is provided, which is wound around the pin 40 designed as a pivot bearing and is supported at one end on the frame part 16 and at the other end on the guide rail 22.
  • the functioning of the locking device is as follows: When the roof hatch 12 is opened, the gas spring 20 extends completely, since the indentation 54 of the guide rail 22 is initially covered by the base part 68 of the link 24. Only in the last phase of the opening movement does the pin 48 reach the groove end 80, so that when it is opened further, the link 24 on the guide rail 22 is displaced towards its free end. When the end position is reached, the two indentations 54, 72 of the guide rail 22 and link 44 overlap. When the roof hatch 12 begins to close, the link 24 initially remains in its exposed position relative to the guide rail 22 due to the spring force of the tabs 76, 78.
  • the guide rail 22 folds down due to its gravity and the torsion spring 84, so that the pin 48 penetrates into the region of the indentations 54, 72. If the closing process is ended in this position and the roof hatch 12 is released, an opening movement starts again as a result of the force of the gas spring (20), but this is interrupted as soon as the pin 48 has reached the recessed end region 58 of the indentation 54. Opening the roof hatch 12 beyond this stop is now not possible. The roof hatch 12 remains in this middle position because it is open due to the pressure force of the gas spring 20 is held. Closing is only possible by overcoming the gas spring force.
  • the pin 48 reaches the lower end 82 of the link 24, so that, upon further closing, the link along the guide rail 22 overcoming the frictional force exerted by the resilient tabs 76, 78 is moved towards the pivot bearing point 50.
  • the indentation 54 also closes again, which is covered by the base part 68 of the link 24, whereby the starting position is reached again.
  • the locking position can thus only be achieved by first opening the roof hatch 12 completely and then moving it back into the semi-closed locking position. From this locking position, the roof hatch 12 can no longer be opened, but can only be closed by overcoming the gas spring force. Since the locking mechanism does not need to be actuated when the roof hatch 12 is opened and closed, it can be attached at a location which is not accessible to the operator.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
  • Window Of Vehicle (AREA)
  • Joints Allowing Movement (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Centrifugal Separators (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Massaging Devices (AREA)
  • Support Devices For Sliding Doors (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Fluid-Damping Devices (AREA)
  • Clamps And Clips (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Toys (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

So that a pivoting part (12), for example the window or roof light of a vehicle, can be swung out and retained in a specific position, there is arranged between the pivoting part (12) and a receiving part (16) at least one guide rail (22) with an approximately longitudinally extending groove (52) having at least one indentation (54). The guide rail (22) is pivotably mounted at one end on one of the parts (12, 16). It receives slidably in its groove (52) a pin (48) connected to the other part (12, 16). Furthermore, a block (24) displaceable along the guide rail (22) is provided. This is so designed that, as a rule, it covers the indentation (54) of the guide rail (22) and exposes it only in a retention position. In the retention position, the pin (48) can engage into the indentation (54) of the guide rail (22) and be supported on a side face (58) of the indentation (54). During the opening or closing of the pivoting part (12), the block (24) is displaced on the guide rail (22) as a result of the engagement of the pin (48). Arranged between the pivoting part (12) and receiving part (16) in parallel with the retaining device (18) is a pneumatic spring (20) which endeavours to bring the pivoting part (12) into an opened position. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Arretierung eines um eine Achse schwenkbaren Klappteils, insbesondere in wenigstens eine Position ausschwenkbares Fenster oder Dachluke eines Fahrzeuges.The invention relates to a device for locking a folding part which can be pivoted about an axis, in particular a window or roof hatch of a vehicle which can be pivoted out into at least one position.

Insbesondere bei Kraftfahrzeugen finden Klappteile, z.B. Fenster oder Dachluken Anwendung, die in unterschiedliche Positionen gebracht werden können. In diesen Positionen werden die Klappteile so festgestellt, daß ein unbeabsich­tigtes Verschwenken des Klappteils auch bei Fahrterschüt­terungen oder Fahrtwind nicht erfolgt.Folding parts, e.g. Windows or skylights application that can be placed in different positions. In these positions, the folding parts are determined in such a way that the folding part does not swivel unintentionally, even when the vehicle is shaken or the wind is blowing.

Um ein Klappteil in eine neue Lage zu bringen und dort zu arretieren, müssen meistens beide Hände benutzt werden. Mit einer Hand wird beispielsweise ein Handgriff zum Aus­schwenken des Klappteils ergriffen, während die andere Hand einen Feststellmechanismus bedient. Diese Art der Be­tätigung ist umständlich und unbequem, insbesondere dann, wenn das Klappteil bzw. dessen Feststellmechanismus schlecht zugänglich ist.In order to bring a folding part into a new position and to lock it there, usually both hands have to be used. For example, one hand grips a handle to swing the folding part out, while the other hand operates a locking mechanism. This type of operation is cumbersome and uncomfortable, especially when the folding part or its locking mechanism is difficult to access.

Durch die DE-OS 26 16 237 ist eine Dachluke für ein Nutz­fahrzeug bekanntgeworden, deren Lukendeckel sich in unter­schiedliche Öffnungsstellungen bringen und dort arretieren läßt. Zu diesem Zweck ist am Lukendeckel eine Kulisse mit mehreren als Ausbuchtungen ausgebildeten Raststellungen angebracht, in die der Zapfen eines im Dachausschnitt an­gelenkten Arretierhebels eingreift. Der Zapfen ist durch eine M-förmige Blattfeder einseitig in Richtung der Aus­buchtungen verspannt. Dies soll ein sicheres Einrasten des Zapfens und damit des Lukendeckels ermöglichen, so daß die Raststellung auch bei Erschütterungen beibehalten wird.From DE-OS 26 16 237 a roof hatch for a commercial vehicle has become known, the hatch cover can be brought into different opening positions and locked there. For this purpose, a backdrop with several latching positions designed as bulges is attached to the hatch cover, in which the pin of a locking lever articulated in the roof cutout engages. The pin is braced on one side in the direction of the bulges by an M-shaped leaf spring. This is intended to enable the pin and thus the hatch cover to be securely latched in, so that the latching position is maintained even when shaken.

Die Ausbildung der Kulisse im Lukendeckelrahmen stellt ei­nen relativ aufwendigen Arbeitsprozeß dar. Ferner sind beim Öffnen und Schliessen des Lukendeckels jeweils die Wider­stände der Raststellungen zu überwinden. Eine sichere Arre­tierung auch unter extremen Bedingungen bietet die bekannte Vorrichtung nicht.The formation of the backdrop in the hatch cover frame represents a relatively complex work process. Furthermore, when opening and closing the hatch cover, the resistances of the latching positions must be overcome. The known device does not offer secure locking even under extreme conditions.

Die der Erfindung zugrunde liegende Aufgabe wird darin ge­sehen, eine Arretiervorrichtung der eingangs genannten Art so auszubilden, daß sie die zuverlässige Arretierung eines Klappteils auch bei Erschütterungen in vorgebbaren Arretier­stellungen ermöglicht, einfach herstellbar und leicht be­dienbar ist.The object underlying the invention is seen in designing a locking device of the type mentioned in such a way that it enables the reliable locking of a folding part even in the event of vibrations in predetermined locking positions, is simple to produce and is easy to use.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß zwi­schen Klappteil und einem Aufnahmeteil wenigstens eine Füh­rungsschiene mit einer in etwa längs verlaufenden Nut, die wenigstens eine Einbuchtung aufweist, angeordnet ist, daß die Führungsschine einenends an einem der Teile schwenkbar gelagert ist und in ihrer Nut einen mit dem anderen Teil (Klappteil bzw. Aufnahmeteil) verbundenen Stift gleitbar aufnimmt, und daß eine längs der Führungsschiene verschieb­bare Kulisse vorgesehen ist. Diese Kulisse ist derart aus­gebildet, daß sie in der Regel die Einbuchtung der Führungs­schiene abdeckt und lediglich bei Erreichen einer Arretier­stellung freigibt, so daß in dieser Stellung der Stift in die Einbuchtung der Führungsschiene eingreifen und sich an einer Seitenfläche der Einbuchtung abstützen kann.The object is achieved in that at least one guide rail with an approximately longitudinal groove, which has at least one indentation, is arranged between the folding part and a receiving part, that the guide rail is pivotally mounted at one end on one of the parts and in its groove with one the other part (folding part or receiving part) connected slidably receives, and that a slidable along the guide rail is provided. This backdrop is designed such that it usually covers the indentation of the guide rail and only releases it when it reaches a locking position, so that in this position the pin can engage in the indentation of the guide rail and can be supported on a side surface of the indentation.

Bei Verschwenken des Klappteils gleitet der Stift entlang der Nut, bis er eine Einbuchtung erreicht. Ist diese Ein­buchtung nicht durch die Kulisse verdeckt, so gleitet der Stift in die Einbuchtung und stützt sich an einer Seiten­fläche der Einbuchtung ab, wodurch das Klappteil in dieser Stellung gehalten wird. Es handelt sich hierbei um eine formschlüssige Verbindung, die lediglich durch Verschwen­ken des Klappteils eingenommen wird, was mit einer Hand durch Betätigung eines am Klappteil befestigten Handgrif­fes erfolgen kann. Der Formschluß ist hier einem Reibschluß vorzuziehen, da er sich ohne zusätzliche Maßnahmen (zweite Hand) selbsttätig einstellt, und eine zuverlässige Arretie­rung auch bei starken Vibrationen und Erschütterungen so­wie gegebenenfalls bei Fahrtwind gewährleistet. Ist hin­gegen die Einbuchtung durch die Kulisse verdeckt, so fin­det hier keine Arretierung statt. Vielmehr läßt sich das Klappteil weiter verschwenken, wobei der Stift weiter längs der Nut gleitet, bis er gegebenenfalls eine weitere Einbuchtung bzw. das Nutende erreicht.When the folding part is pivoted, the pin slides along the groove until it reaches an indentation. If this indentation is not covered by the backdrop, the pin slides into the indentation and is supported on a side surface of the indentation, as a result of which the folding part is held in this position. It is a form-fitting connection, which is taken only by pivoting the folding part, which can be done with one hand can be done by operating a handle attached to the folding part. The positive connection is preferable to a frictional connection, since it adjusts itself automatically without additional measures (second hand), and ensures reliable locking even in the event of strong vibrations and shocks and, if necessary, in the event of a headwind. If, however, the indentation is covered by the backdrop, there is no locking here. Rather, the folding part can be pivoted further, the pin sliding further along the groove until it reaches a further indentation or the groove end, if necessary.

Die erfindungsgemäße Arretiervorrichtung läßt sich kosten­günstig durch einfache Stanz- bzw. Biegeteile realisieren und beansprucht sehr wenig Platz. Sie kann in einem für den Bediener unzugänglichen Bereich liegen, da keine di­rekte Betätigung des Mechanismus erforderlich ist. Diese Arretiervorrichtung ist besonders vorteilhaft anwendbar bei Front- oder Heckfenstern oder bei Dachluken von Fahr­zeugen, insbesondere von Arbeitsfahrzeugen wie Ackerschlep­pern, die in verschiedenen Positionen offengehalten werden sollen. Eine Anordnung der Führungsschiene parallel zu ei­ner Gasfeder, deren Gasdruck ausgenutzt wird, um den Öff­nungsdruck für das Klappteil zu liefern, ist besonders vor­teilhaft.The locking device according to the invention can be implemented inexpensively by simple stamped or bent parts and takes up very little space. It can be in an area inaccessible to the operator since no direct actuation of the mechanism is required. This locking device can be used particularly advantageously in the case of front or rear windows or in the roof hatches of vehicles, in particular of work vehicles such as agricultural tractors, which are to be kept open in various positions. An arrangement of the guide rail parallel to a gas spring, the gas pressure of which is used to provide the opening pressure for the folding part, is particularly advantageous.

Vorzugsweise weist auch die Kulisse eine Längsnut mit ei­ner Einbuchtung auf, deren Gestalt der Einbuchtung in der Führungsschienennut entspricht und in die ebenfalls der Stift eingreift. Die Kulissennut ist jedoch kürzer als die Führungsschienennut, so daß beim Öffnen und Schließen des Klappteils die Enden der Kulissennut rasch erreicht werden und die Kulisse durch den Stift längs der Führungsschiene verschoben wird. Durch diese Verschiebung lassen sich die Einbuchtungen der Führungsschiene und der Kulisse zur Dek­kung bringen, so daß der Stift in diese Einbuchtungen ein­greifen und die Verriegelung bewirken kann.The link also preferably has a longitudinal groove with an indentation, the shape of which corresponds to the indentation in the guide rail groove and into which the pin also engages. However, the link groove is shorter than the guide rail groove, so that when the folding part is opened and closed, the ends of the link groove are quickly reached and the link is moved along the guide rail by the pin. This displacement allows the indentations of the guide rail and the link to be covered so that the pin can engage in these indentations and effect the locking.

Gewöhnlich läßt sich die Führungsschiene so anordnen, daß sie sich infolge der auf sie wirkenden Schwerkraft um ihre Schwenklagerstelle bei Erreichen der Arretierposition der­art verschwenkt, daß bei sich überdeckenden Einbuchtungen der Stift in diese eingreift. Diese Schwenkbewegung läßt sich jedoch auch vorteilhaft durch Anbringen einer Feder, vorzugsweise einer Torsionsfeder, bewirken und unterstüt­zen.Usually, the guide rail can be arranged so that it pivots due to the force of gravity acting on it about its pivot bearing position when it reaches the locking position such that the pin engages in overlapping indentations. However, this pivoting movement can also advantageously be brought about and supported by attaching a spring, preferably a torsion spring.

Zweckmäßigerweise ist die Einbuchtung assymmetrisch ausge­bildet und weist eine zurückspringende sowie eine schräg auslaufende seitliche Flanke auf. Die zurückspringende Flanke nimmt bei Arretierstellung den Stift auf und ver­hindert, daß die Führungsschiene aus der Arretierstellung springt und das Klappteil sich weiter bewegen (z.B. Öff­nen) läßt. Ist die Arretierung so ausgelegt, daß ein wei­teres Öffnen des Klappteils in der Arretierstellung form­schlüssig vermieden wird, so wird sich zweckmäßigerweise die zurückspringende Flanke auf der der Schwenklagerstelle der Führungsschiene abgewandten Seite der Einbuchtung be­finden.The indentation is expediently designed asymmetrically and has a recessed and an obliquely tapering side flank. The recessed flank picks up the pin in the locking position and prevents the guide rail from jumping out of the locking position and preventing the folding part from moving further (e.g. opening). If the locking device is designed such that a further opening of the folding part in the locking position is positively avoided, then the recessed flank will expediently be located on the side of the indentation facing away from the pivot bearing point of the guide rail.

Um ein ungewolltes Verschieben der Kulisse auf der Füh­rungsschiene zu vermeiden, läßt sich die Kulisse vorzugs­weise lediglich unter Überwindung von Gleitreibungskräften verschieben. Zu diesem Zweck können an der Kulisse federn­de Laschen angeformt sein, die sich federnd an die Führungs­schiene anlegen und einen Reibschluß herstellen.In order to avoid an unintentional shifting of the link on the guide rail, the link can preferably only be moved by overcoming sliding friction forces. For this purpose, resilient tabs can be formed on the backdrop, which resiliently abut the guide rail and produce a frictional connection.

Einer besonders bevorzugten Ausgestaltung der Erfindung zufolge ist zwischen Klappteil und Aufnahmeteil wenigstens ein eine Schwenkkraft erzeugender Kraftantrieb angeordnet, der in einer Arretierstellung den Stift gegen die zurück­springende Flanke der Einbuchtung drückt. Der Kraftantrieb ist z.B. ein hydraulisches oder mechanisches Federelement, z.B. ein Hydraulikzylinder oder eine Gasfeder. Letztere ist ein billiges, handelsübliches Bauteil. Der Kraftantrieb ist so ausgelegt, daß er je nach Anwendungsfall eine Ver­schwenkung des Klappteils vom Aufnahmeteil weg oder zu ihm hin bewirken kann. Bei Dachluken ist es zweckmäßig, die Antriebskraft zum Öffnen auszunutzen. Hierbei verhindert in der Arretierstellung die zurückspringende Flanke der Einbuchtung ein weiteres Öffnen infolge der Wirkung des Kraftantriebes. Vorzugsweise sind die Arretiervorrichtung und der Kraftantrieb in etwa parallel angeordnet und im wesentlichen als eine montierbare Baueinheit ausgebildet.According to a particularly preferred embodiment of the invention, at least one power drive generating a pivoting force is arranged between the folding part and the receiving part and, in a locking position, presses the pin against the recessed flank of the indentation. The power drive is, for example, a hydraulic or mechanical spring element, for example a hydraulic cylinder or a gas spring. The latter is a cheap, commercially available component. The power drive is designed so that, depending on the application, it can pivot the folding part away from or towards the receiving part. With skylights, it is advisable to use the driving force to open the hatch. In the locking position, the recessed flank of the indentation prevents further opening due to the effect of the power drive. The locking device and the power drive are preferably arranged approximately in parallel and essentially designed as an assemblable structural unit.

Die Antriebskraft wird erfindungsgemäß so bemessen, daß sie ausreicht, um das Schwenkteil, beispielsweise gegen Schwerkraft, in seine maximale Stellung zu verschwenken. In der maximalen Stellung soll das Schwenkteil auch bei Erschütterungen oder gegebenenfalls Fahrtwind zuverlässig gehalten werden. Es ist vorteilhaft, wenn die Antriebs­kraft den 1,7fachen Wert aufweist, der erforderlich wäre, um das Klappteil in seiner maximalen Stellung im Gleich­gewicht zu halten. Bei der Bemessung der Antriebskraft ist die von Hand aufbringbare Kraft zum Verschwenken des Klappteils zu berücksichtigen.According to the invention, the driving force is dimensioned such that it is sufficient to pivot the pivoting part into its maximum position, for example against gravity. In the maximum position, the swivel part should also be held reliably in the event of vibrations or, where appropriate, wind. It is advantageous if the driving force is 1.7 times the value that would be required to keep the folding part in its maximum position in equilibrium. When dimensioning the driving force, the force that can be applied by hand to pivot the folding part must be taken into account.

Statt Anwendung eines Kraftantriebes kann in einigen Fäl­len auch die Schwerkraft ausgenutzt werden, um das Klapp­teil in Richtung einer ausgeschwenkten Stellung vorzube­lasten.Instead of using a power drive, gravity can also be used in some cases to preload the folding part in the direction of a pivoted-out position.

Die Erfindung bezieht sich ferner auf die Dachluke eines Fahrzeuges, insbesondere eines landwirtschaftlichen oder Baufahrzeuges, mit einer erfindungsgemäßen Arretiervor­richtung.The invention further relates to the roof hatch of a vehicle, in particular an agricultural or construction vehicle, with a locking device according to the invention.

Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung sind den Unteransprüchen sowie der nachfol­genden Figurenbeschreibung zu entnehmen. In der Figuren­beschreibung wird ein in der Zeichnung dargestelltes Aus­führungsbeispiel der Erfindung näher erläutert.Further advantageous refinements and developments of the invention can be found in the subclaims and in the following description of the figures. In the description of the figures, an embodiment of the invention shown in the drawing is explained in more detail.

Es zeigt:

  • Fig. 1 die schematische Perspektivdarstellung der erfindungsgemäßen Dachluke eines Ackerschlep­pers mit angedeuteter Arretiervorrichtung,
  • Fig. 2 die erfindungsgemäße Arretiervorrichtung mit Gasdruckzylinder in zusammengebautem Zustand,
  • Fig. 3 und 4 Seiten- und Stirnansicht der Kulisse,
  • Fig. 5 und 6 Seiten- und Stirnansicht der Führungsschiene.
It shows:
  • 1 is a schematic perspective view of the roof hatch of an agricultural tractor according to the invention with indicated locking device,
  • 2 the locking device according to the invention with gas pressure cylinder in the assembled state,
  • 3 and 4 side and front view of the backdrop,
  • 5 and 6 side and front view of the guide rail.

Aus der Fig. 1 ist der Ausschnitt eines Ackerschlepper­daches 10 dargestellt, in das eine Dachluke 12 eingelassen ist. Die Dachluke 12 ist in halbgeöffneter Stellung darge­stellt. Sie läßt sich um eine Achse, die durch zwei Schar­niere 14 gebildet wird, gegenüber dem im Dach 10 festge­legten, als Aufnahmeteil ausgebildeten Rahmenteil 16 ver­schwenken. Im Rahmenteil 16 sind die üblichen Dichtungsele­mente integriert, die einen regendichten Verschluß ermög­lichen.1 shows the detail of an agricultural tractor roof 10 into which a roof hatch 12 is embedded. The roof hatch 12 is shown in the half-open position. It can be pivoted about an axis, which is formed by two hinges 14, relative to the frame part 16, which is defined in the roof 10 and is designed as a receiving part. In the frame part 16, the usual sealing elements are integrated, which allow a rainproof closure.

Die Dachluke 12 läßt sich von innen aus öffnen und schlies­sen, indem mit einer Hand ein auf der Dachlukenfläche ange­ordneter, in der Figur nicht sichtbarer Handgriff ergriffen und in vertikaler Richtung betätigt wird. Zwischen dem Rah­menteil 16 und einem nicht näher dargestellten Rahmen der Dachluke 12 ist die erfindungsgemäße Arretiervorrichtung 18 angedeutet. Im Bedarfsfall läßt sich parallel zu dieser Arretiervorrichtung 18 auf der anderen Seite der Dachluke 12 eine zweite Arretiervorrichtung anbringen.The roof hatch 12 can be opened and closed from the inside by gripping with one hand a handle which is arranged on the hatch surface and is not visible in the figure and is actuated in the vertical direction. The locking device 18 according to the invention is indicated between the frame part 16 and a frame of the roof hatch 12 (not shown in more detail). If necessary, a second locking device can be attached parallel to this locking device 18 on the other side of the roof hatch 12.

Die Arretiervorrichtung 18 ist in Fig. 2 näher dargestellt. Sie besteht im wesentlichen aus einer Gasfeder 20, einer Führungsschiene 22, sowie einer Kulisse 24. Die Führungs­schiene 22 und die Kulisse 24 sind in den Fig. 3 bis 6 de­tailliert dargestellt.The locking device 18 is shown in more detail in FIG. 2. It essentially consists of a gas spring 20, a guide rail 22 and a link 24. The guide rail 22 and the link 24 are shown in detail in FIGS. 3 to 6.

Gemäß Fig. 2 besteht die Gasfeder im wesentlichen aus ei­nem Gasdruckzylinder 26 und einer Kolbenstange 28. Das freie Ende des Gasdruckzylinders 26 trägt eine Lasche 30, die mittels eines Bolzens 32 gelenkig mit zwei am Rahmen der Dachluke 12 befestigten Laschen 34, 36 festgelegt ist. Das freie Ende der Kolbenstange 28 trägt ebenfalls eine Lasche 38, die mittels eines Bolzens 40 zwischen zwei am Rahmenteil 16 des Außendaches befestigten Laschen 42, 44 verschwenkbar gelagert ist. Die Gasfeder 20 ist derart vor­gespannt, daß sie bestrebt ist, die Kolbenstange 28 aus dem Gasdruckzylinder 26 herauszudrücken. Sie bringt damit eine Schwenkkraft auf, die eine nichtarretierte Dachluke 12 öffnet und sie in einer geöffneten Position hält. Die Federkraft der Gasfeder 20 ist so ausgelegt, daß sie um den Faktor 1,7 größer ist als die zum Öffnen der Dachluke 12 mindestens erforderliche Kraft.2, the gas spring consists essentially of a gas pressure cylinder 26 and a piston rod 28. The free end of the gas pressure cylinder 26 carries a tab 30 which is articulated by means of a bolt 32 with two tabs 34, 36 fastened to the frame of the roof hatch 12. The free end of the piston rod 28 also carries a tab 38 which is pivotally mounted by means of a bolt 40 between two tabs 42, 44 fastened to the frame part 16 of the outer roof. The gas spring 20 is biased such that it strives to push the piston rod 28 out of the gas pressure cylinder 26. It thus applies a pivoting force that opens a non-locked roof hatch 12 and holds it in an open position. The spring force of the gas spring 20 is designed such that it is greater by a factor of 1.7 than the minimum force required to open the roof hatch 12.

Auf dem der Kolbenstange 28 zugewandten Ende der Gasdruck­zylindermantelfläche ist ein Ring 46 befestigt, welcher einen radial nach außen weisenden Stift 48 trägt. Zwischen dem Stift 48 und dem Bolzen 40 ist eine Führungsschiene 22 angeordnet. Wie die Fig. 5 und 6 zeigen, besteht die Füh­rungsschiene 22 im wesentlichen aus einem flachen Metall­streifen, der an seinem einen Ende eine Bohrung 50 auf­weist. Annähernd über die gesamte Länge der Führungsschie­ne 22 erstreckt sich eine längs verlaufende Nut 52. Diese Nut 52 weist auf einer Seite eine Einbuchtung 54 auf. Die Einbuchtung 54 ist assymmetrisch ausgebildet. Ihre der Boh­rung 50 zugewandte Flanke 56 ist so ausgebildet, daß die Einbuchtung 54 schräg in die Nut 52 ausläuft. Die gegenüber­liegende andere Flanke 58 ist zurückspringend ausgebildet, so daß sich zwischen Einbuchtung 54 und Nut 52 eine hervor­springende Nase 60 ausbildet. In montiertem Zustand nimmt die Bohrung 50 den Bolzen 40 auf, so daß sich die Führungs­schiene 22 um diesen Bolzen 40 verschwenken läßt. Der Stift 48 ist gleitbar in der Nut 52 angeordnet. Eine Sicherungs­scheibe 62 ist am äußeren Stiftende befestigt, um zu vermei­den, daß die Führungsschiene 22 vom Stift 48 abgleitet. Beim Öffnen und Schließen der Dachluke 12 verschiebt sich der Stift 48 längs der Nut 52 der Führungsschiene 22.On the end of the gas pressure cylinder jacket surface facing the piston rod 28, a ring 46 is fastened, which carries a pin 48 pointing radially outwards. A guide rail 22 is arranged between the pin 48 and the bolt 40. 5 and 6 show, the guide rail 22 consists essentially of a flat metal strip which has a bore 50 at one end. A longitudinally extending groove 52 extends approximately over the entire length of the guide rail 22. This groove 52 has an indentation 54 on one side. The indentation 54 is designed asymmetrically. Its flank 56 facing the bore 50 is designed such that the indentation 54 runs obliquely into the groove 52. The opposite other flank 58 is designed to spring back, so that a protruding nose 60 forms between indentation 54 and groove 52. In the assembled state, the bore 50 receives the bolt 40, so that the guide rail 22 can be pivoted about this bolt 40. The pin 48 is slidably disposed in the groove 52. A lock washer 62 is attached to the outer end of the pin to prevent the guide rail 22 from sliding off the pin 48. When opening and closing the roof hatch 12, the pin 48 moves along the groove 52 of the guide rail 22.

Die Fig. 3 und 4 stellen die Kulisse 24 dar. Es handelt sich dabei um ein aus Blech geformtes Teil, welches im Quer­schnitt im wesentlichen C-förmig ausgebildet ist (Fig. 4). Die Kulisse 24 läßt sich in Längsrichtung über die Führungs­schiene 22 schieben, so daß die beiden freien Schenkel 64, 66 die Führungsschiene 22 umgreifen. In ihrem Basisteil 68 weist die Kulisse 24 eine sich im wesentlichen über ihre gesamte Länge erstreckende Nut 70 auf. Diese Nut 70 korres­pondiert mit der Nut 52 der Führungsschiene 22, auch wenn sie insgesamt nicht ganz so lang ist. An einem Ende der Kulisse 24 weitet sich die Nut 70 in eine Einbuchtung 72 auf. Diese Einbuchtung 72 ist hinsichtlich ihrer Breite und ihrer steilen Flanke 74 der Einbuchtung 54 der Führungs­schiene 22 entsprechend ausgebildet, auch wenn bei der Ku­lisse 24 die besondere Ausbildung der Nase 60 entfallen kann. An dem der Einbuchtung 72 gegenüberliegenden Ende der Kulisse 24 befinden sich zwei abgewinkelte Laschen 76, 78. Diese Laschen 76, 78 legen sich in zusammengebautem Zustand federnd gegen die Seitenflächen der Führungsschie­ne 22 an und bilden so einen Reibschluß zwischen den beiden Bauteilen 22, 24. Dieser Reibschluß verhindert es, daß die Kulisse 24 sich infolge der Schwerkraft längs der Führungs­schiene 22 bewegt. Eine Verschiebung tritt nur dann ein, wenn der Stift 48 eines der beiden Nutenden 80, 82 erreicht und überfährt.3 and 4 represent the backdrop 24. It is a part formed from sheet metal, which is essentially C-shaped in cross section (FIG. 4). The link 24 can be pushed in the longitudinal direction over the guide rail 22, so that the two free legs 64, 66 engage around the guide rail 22. In its base part 68, the link 24 has a groove 70 which extends essentially over its entire length. This groove 70 corresponds to the groove 52 of the guide rail 22, even if it is not quite as long overall. At one end of the link 24, the groove 70 widens into an indentation 72. This indentation 72 is designed in terms of its width and its steep flank 74 corresponding to the indentation 54 of the guide rail 22, even if the special design of the nose 60 can be omitted in the setting 24. At the end of the link 24 opposite the indentation 72 there are two angled tabs 76, 78. In the assembled state, these tabs 76, 78 bear resiliently against the side surfaces of the guide rail 22 and thus form a frictional connection between the two components 22, 24. This frictional engagement prevents the link 24 from moving along the guide rail 22 as a result of gravity. A shift occurs only when the pin 48 reaches one of the two groove ends 80, 82 and runs over it.

Die Einbuchtungen 54, 72 liegen bei zusammengebauter Arre­tiervorrichtung 18 auf der nach oben weisenden Seite der Führungsschiene 22 bzw. der Kulisse 24. Erreicht der Stift 48 diese Einbuchtungen 54, 72, so kippt die Führungsschiene 22 infolge ihrer Schwerkraft etwas nach unten, so daß der Stift 48 in den Bereich der Einbuchtung 54, 72 eindringt. Um diese Kippbewegung zu unterstützen, ist eine Torsionsfe­der 84 vorgesehen, die um den als Schwenklagerstelle ausge­bildeten Bolzen 40 gewunden ist und sich einenends an dem Rahmenteil 16 und anderenends an der Führungsschiene 22 abstützt.When the locking device 18 is assembled, the indentations 54, 72 lie on the upward-facing side of the guide rail 22 or the link 24. When the pin 48 reaches these indentations 54, 72, the guide rail 22 tilts somewhat downwards due to its gravity, so that the Pen 48 penetrates into the area of the indentation 54, 72. In order to support this tilting movement, a torsion spring 84 is provided, which is wound around the pin 40 designed as a pivot bearing and is supported at one end on the frame part 16 and at the other end on the guide rail 22.

Die Funktionsweise der erfindungsgemäßen Arretiervorrichtung ist folgende: Beim Öffnen der Dachluke 12 fährt die Gasfeder 20 vollständig aus, da zunächst die Einbuchtung 54 der Füh­rungsschiene 22 durch den Basisteil 68 der Kulisse 24 ver­deckt ist. Erst in der letzten Phase der Öffnungsbewegung gelangt der Stift 48 an das Nutende 80, so daß beim weiteren Öffnen die Kulisse 24 auf der Führungsschiene 22 zu deren freien Ende hin verschoben wird. Beim Erreichen der Endlage überdecken sich die beiden Einbuchtungen 54, 72 von Führungs­schiene 22 und Kulisse 44. Bei einer nun einsetzenden Schließ­bewegung der Dachluke 12 verharrt die Kulisse 24 zunächst infolge der Federkraft der Laschen 76, 78 relativ zur Führungs­schiene 22 in ihrer exponierten Position. Erreicht der Stift 48 beim Schließvorgang die sich deckenden Einbuchtungen 54, 72, so klappt die Führungsschiene 22 infolge ihrer Schwer­kraft und der Torsionsfeder 84 nach unten, so daß der Stift 48 in den Bereich der Einbuchtungen 54, 72 eindringt. Wird in dieser Lage der Schließvorgang beendet und die Dachluke 12 freigegeben, so setzt infolge der Kraft der Gasfeder (20) wieder eine Öffnungsbewegung ein, die jedoch unterbro­chen wird, sobald der Stift 48 den zurückspringenden Endbe­reich 58 der Einbuchtung 54 erreicht hat. Ein Öffnen der Dachluke 12 über diesen Anschlag hinaus ist nun nicht mög­lich. Die Dachluke 12 bleibt in dieser mittleren Stellung stehen, da sie infolge der Druckkraft der Gasfeder 20 offen­ gehalten wird. Ein Schließen ist nur durch Überwindung der Gasfederkraft möglich.The functioning of the locking device according to the invention is as follows: When the roof hatch 12 is opened, the gas spring 20 extends completely, since the indentation 54 of the guide rail 22 is initially covered by the base part 68 of the link 24. Only in the last phase of the opening movement does the pin 48 reach the groove end 80, so that when it is opened further, the link 24 on the guide rail 22 is displaced towards its free end. When the end position is reached, the two indentations 54, 72 of the guide rail 22 and link 44 overlap. When the roof hatch 12 begins to close, the link 24 initially remains in its exposed position relative to the guide rail 22 due to the spring force of the tabs 76, 78. If the pin 48 reaches the overlapping indentations 54, 72 during the closing process, the guide rail 22 folds down due to its gravity and the torsion spring 84, so that the pin 48 penetrates into the region of the indentations 54, 72. If the closing process is ended in this position and the roof hatch 12 is released, an opening movement starts again as a result of the force of the gas spring (20), but this is interrupted as soon as the pin 48 has reached the recessed end region 58 of the indentation 54. Opening the roof hatch 12 beyond this stop is now not possible. The roof hatch 12 remains in this middle position because it is open due to the pressure force of the gas spring 20 is held. Closing is only possible by overcoming the gas spring force.

Wird die Dachluke 12 aus ihrer mittleren, arretierten Posi­tion heraus wieder geschlossen, so erreicht der Stift 48 das untere Ende 82 der Kulisse 24, so daß bei weiterem Schließ­vorgang die Kulisse unter Überwindung der durch die federn­den Laschen 76, 78 aufgebrachten Reibkraft längs der Führungs­schiene 22 in Richtung auf die Schwenklagerstelle 50 verscho­ben wird. Dabei verschließt sich auch wieder die Einbuchtung 54, welche durch das Basisteil 68 der Kulisse 24 abgedeckt wird, womit die Ausgangsstellung wieder erreicht ist.If the roof hatch 12 is closed again from its central, locked position, the pin 48 reaches the lower end 82 of the link 24, so that, upon further closing, the link along the guide rail 22 overcoming the frictional force exerted by the resilient tabs 76, 78 is moved towards the pivot bearing point 50. In this case, the indentation 54 also closes again, which is covered by the base part 68 of the link 24, whereby the starting position is reached again.

Die Arretierstellung ist damit nur zu erreichen, indem die Dachluke 12 zunächst vollständig geöffnet und dann bis in die halbgeschlossene Arretierstellung zurückgefahren wird. Aus dieser Arretierstellung heraus läßt sich die Dachluke 12 nicht mehr öffnen, sondern lediglich durch Überwindung der Gasfederkraft schließen. Da beim Öffnen und Schließen der Dachluke 12 der Arretiermechanismus nicht betätigt zu werden braucht, kann dieser an einer für den Bediener nicht zugänglichen Stelle angebracht werden.The locking position can thus only be achieved by first opening the roof hatch 12 completely and then moving it back into the semi-closed locking position. From this locking position, the roof hatch 12 can no longer be opened, but can only be closed by overcoming the gas spring force. Since the locking mechanism does not need to be actuated when the roof hatch 12 is opened and closed, it can be attached at a location which is not accessible to the operator.

Claims (13)

1. Vorrichtung zur Arretierung eines um eine Achse schwenk­baren Klappteils, insbesondere in wenigstens eine Posi­tion ausschwenkbares Fenster oder Dachluke eines Fahr­zeuges, dadurch gekennzeichnet, daß zwischen Klappteil (12) und einem Aufnahmeteil (16) wenigstens eine Füh­rungsschiene (22) mit einer in etwa längs verlaufenden Nut (52), die wenigstens eine Einbuchtung (54) aufweist, angeordnet ist, daß die Führungsschiene (22) einenends an einem der Teile (12, 16) schwenkbar gelagert ist und in ihrer Nut (52) einen mit dem anderen Teil (12, 16) verbundenen Stift (48) aufnimmt, und daß eine längs der Führungsschiene (22) verschiebbare Kulisse (24) vorgesehen ist, die derart ausgebildet ist, daß sie in der Regel die Einbuchtung (54) der Führungsschiene (22) abdeckt und lediglich bei einer Arretierstellung freigibt, so daß in dieser Stellung der Stift (48) in die Einbuchtung (54) der Führungsschiene (22) eingrei­fen und sich an einer Seitenfläche (58) der Einbuch­tung (54) abstützen kann.1. Device for locking a pivoting part about an axis, in particular in at least one position pivotable window or roof hatch of a vehicle, characterized in that between the folding part (12) and a receiving part (16) at least one guide rail (22) with an approximately longitudinal extending groove (52), which has at least one indentation (54), is arranged such that the guide rail (22) is pivotally mounted at one end on one of the parts (12, 16) and in its groove (52) one with the other part ( 12, 16) connected pin (48), and that a slidable along the guide rail (22) link (24) is provided, which is designed such that it usually covers the indentation (54) of the guide rail (22) and only releases in a locking position so that in this position the pin (48) engages in the indentation (54) of the guide rail (22) and engages on a side surface (58) of the indentation (54) can support. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kulisse (24) eine in etwa längs verlaufende Nut (70) mit einer Einbuchtung (72) aufweist, deren Gestalt in etwa der Einbuchtung (54) in der Nut (52) der Führungsschiene (22) entspricht und so ausgebil­det ist, daß nach Anfahren einer Arretierstellung des Klappteils (12) die Einbuchtung (72) der Kulisse (24) sich mit der wenigstens einen Einbuchtung (54) der Führungsschiene (22) deckt.2. Device according to claim 1, characterized in that the link (24) has an approximately longitudinal groove (70) with an indentation (72), the shape of which is approximately the indentation (54) in the groove (52) of the guide rail (22) corresponds and is designed such that after approaching a locking position of the folding part (12), the indentation (72) of the link (24) coincides with the at least one indentation (54) of the guide rail (22). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß der Stift (48) in die Nut (70) der Kulisse (24) eingreift und beim Überfahren eines Nutendes (80, 82) der Kulisse (24) diese längs der Führungsschiene (22) verschiebt.3. Device according to claim 2, characterized in that the pin (48) engages in the groove (70) of the link (24) and when driving over a groove end (80, 82) the link (24) moves it along the guide rail (22). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß eine Feder (84) vorgesehen ist, die an der Führungsschiene (22) angreift, um diese um ihre Schwenklagerstelle (40) zur der Einbuchtung (54, 72) abgewandten Seite zu verschwenken.4. Device according to one of claims 1 to 3, characterized in that a spring (84) is provided which engages on the guide rail (22) around this about its pivot bearing point (40) facing away from the indentation (54, 72) to pivot. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Einbuchtung (54) auf ihrer bezüglich der Längsrichtung der Führungsschiene (22) einen Seite zurückspringend ausgebildet ist, so daß sich eine vorstehende, den Stift (48) einfangende Na­se (60) ausbildet, und auf ihrer anderen Seite schräg (56) in die Nut (52) ausläuft.5. Device according to one of claims 1 to 4, characterized in that the indentation (54) on its with respect to the longitudinal direction of the guide rail (22) is formed to spring back so that a projecting, the pin (48) catching nose ( 60) forms, and on its other side runs obliquely (56) into the groove (52). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß sich die Nase (60) auf der der Schwenklagerstelle (50) der Führungsschiene (22) abgewandten Seite der Einbuchtung (54) befindet.6. The device according to claim 5, characterized in that the nose (60) on the pivot bearing (50) of the guide rail (22) facing away from the indentation (54). 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß zwischen Führungsschiene (22) und Kulisse (24) ein Reibschluß besteht, der eine Ver­schiebung nur bei Überwindung von Reibungskräften er­laubt.7. Device according to one of claims 1 to 6, characterized in that there is a frictional connection between the guide rail (22) and link (24), which allows a displacement only when overcoming frictional forces. 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß an der Kulisse (24) federnde Laschen (76, 78) an­geformt sind, die im wesentlichen längs der Führungs­schiene (22) ausgerichtet sind und sich federnd an diese anlegen.8. The device according to claim 7, characterized in that on the link (24) resilient tabs (76, 78) are formed, which are aligned essentially along the guide rail (22) and resiliently abut against it. 9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß zwischen Klappteil (12) und Auf­nahmeteil (16) wenigstens ein eine Schwenkkraft erzeu­ gender Kraftantrieb (20) derart angeordnet ist, daß in der Arretierstellung der Stift (48) durch die Schwenkkraft gegen eine Seitenfläche (58) der Einbuch­tung (54) gedrückt wird.9. Device according to one of claims 1 to 8, characterized in that between the folding part (12) and the receiving part (16) generate at least one pivoting force gender power drive (20) is arranged such that in the locking position the pin (48) is pressed by the pivoting force against a side surface (58) of the indentation (54). 10. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß die Schwenkkraft des Kraftantriebes (20) ausreicht, um das Klappteil (12) in seine maximale Stellung zu verschwenken und es in dieser Stellung zuverlässig zu halten.10. The device according to claim 9, characterized in that the pivoting force of the power drive (20) is sufficient to pivot the folding part (12) into its maximum position and to hold it reliably in this position. 11. Vorrichtung nach Anspruch 9 oder 10, dadurch gekenn­zeichnet, daß als Kraftantrieb eine Gasfeder (20) dient, deren Gasdruckzylinder (26) und Kolbenstange (28) jeweils mit dem Klappteil (12) bzw. Aufnahmeteil (16) gelenkig verbunden sind.11. The device according to claim 9 or 10, characterized in that a gas spring (20) serves as the power drive, the gas pressure cylinder (26) and piston rod (28) are each articulated to the folding part (12) or receiving part (16). 12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß das freie Ende der Kolbenstange (28) sowie die Führungsschiene (22) über ein Schwenklager (40) am Aufnahmeteil (16) befestigt sind, daß das gegenüber­liegende Ende des Gasdruckzylinders (26) gelenkig am Klappteil (12) befestigt ist, und daß der Gasdruckzy­linder (26) eine Aufnahme (46) trägt, an der der Stift (48) befestigt ist.12. The apparatus according to claim 11, characterized in that the free end of the piston rod (28) and the guide rail (22) via a pivot bearing (40) on the receiving part (16) are fastened that the opposite end of the gas pressure cylinder (26) articulated on Folding part (12) is attached, and that the gas pressure cylinder (26) carries a receptacle (46) to which the pin (48) is attached. 13. Dachluke eines Fahrzeuges, insbesondere landwirtschaft­liches oder Baufahrzeug, dadurch gekennzeichnet, daß sie wenigstens eine Vorrichtung zur Arretierung nach einem der Ansprüche 1 bis 12 enthält, wobei das Klapp­teil die Dachluke (12) und das Aufnahmeteil das Fahr­zeugdach (10) ist.13. Roof hatch of a vehicle, in particular agricultural or construction vehicle, characterized in that it contains at least one locking device according to one of claims 1 to 12, wherein the folding part is the roof hatch (12) and the receiving part is the vehicle roof (10).
EP90105951A 1989-04-07 1990-03-28 Means for holding a pivoting panel Expired - Lifetime EP0391238B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911319A DE3911319A1 (en) 1989-04-07 1989-04-07 DEVICE FOR LOCKING A FOLDING PART
DE3911319 1989-04-07

Publications (3)

Publication Number Publication Date
EP0391238A2 true EP0391238A2 (en) 1990-10-10
EP0391238A3 EP0391238A3 (en) 1991-08-07
EP0391238B1 EP0391238B1 (en) 1993-01-13

Family

ID=6378100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105951A Expired - Lifetime EP0391238B1 (en) 1989-04-07 1990-03-28 Means for holding a pivoting panel

Country Status (8)

Country Link
US (1) US5071180A (en)
EP (1) EP0391238B1 (en)
JP (1) JPH02296983A (en)
AT (1) ATE84595T1 (en)
DE (2) DE3911319A1 (en)
DK (1) DK0391238T3 (en)
ES (1) ES2037493T3 (en)
FI (1) FI90581C (en)

Cited By (3)

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EP0507708A1 (en) * 1991-04-05 1992-10-07 Societe Anonyme Dite : Sodif Safety device for hinged manhole cover
EP0978615A2 (en) * 1998-08-07 2000-02-09 Krauss-Maffei Wegmann GmbH & Co. KG Vehicle door
DE102015108200A1 (en) 2015-05-22 2016-11-24 Voxformat Gmbh Window element with bearing points that can be moved in rails

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DE4315461C2 (en) * 1993-05-10 1995-11-23 Daimler Benz Ag Ventilation flap on the outside of a vehicle
US5740744A (en) * 1994-11-29 1998-04-21 Fujitsu Limited Through-wall type automatic customer service apparatus
US5667268A (en) * 1995-06-16 1997-09-16 Bump; Durwin L. Protective door for service compartment
US6279932B1 (en) * 1999-07-12 2001-08-28 William G. White Lock pin release device for truck tandem axle
DE10158095B4 (en) * 2001-05-05 2012-03-22 Lpkf Laser & Electronics Ag Device for controlling a weld in a workpiece made of weldable plastic
US6910731B2 (en) 2002-12-19 2005-06-28 Clark Equipment Company Skid steer loader with front pivoting cab having a no tool latch

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US2550008A (en) * 1948-08-24 1951-04-24 Antony P Freeman Self-releasing bracket
DE1037918B (en) * 1954-03-13 1958-08-28 Jean Mawhin Sa Device to automatically lock two parts that can be swiveled against each other about an axis in different open positions and to automatically bring them back into the closed position
DE2217797A1 (en) * 1972-04-13 1973-10-25 Giehl & Co ADJUSTMENT MECHANICS FOR FOLDING MATTRESS FRAME PARTS
FR2335136A7 (en) * 1975-12-12 1977-07-08 Stabilus Gmbh MECHANICAL LOCKING PNEUMATIC SPRING
EP0284890A2 (en) * 1987-03-30 1988-10-05 Rittal-Werk Rudolf Loh GmbH & Co. KG Control desk with cabinet body and shutter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507708A1 (en) * 1991-04-05 1992-10-07 Societe Anonyme Dite : Sodif Safety device for hinged manhole cover
FR2674879A1 (en) * 1991-04-05 1992-10-09 Sodif Sa SECURITY DEVICE FOR ARTICULATED PAVEMENT OF LOOKING ROAD.
EP0978615A2 (en) * 1998-08-07 2000-02-09 Krauss-Maffei Wegmann GmbH & Co. KG Vehicle door
EP0978615A3 (en) * 1998-08-07 2000-04-05 Krauss-Maffei Wegmann GmbH & Co. KG Vehicle door
DE102015108200A1 (en) 2015-05-22 2016-11-24 Voxformat Gmbh Window element with bearing points that can be moved in rails

Also Published As

Publication number Publication date
ES2037493T3 (en) 1993-06-16
JPH02296983A (en) 1990-12-07
DK0391238T3 (en) 1993-02-08
EP0391238B1 (en) 1993-01-13
DE3911319C2 (en) 1991-05-16
DE3911319A1 (en) 1990-10-11
FI901708A0 (en) 1990-04-04
DE59000733D1 (en) 1993-02-25
EP0391238A3 (en) 1991-08-07
FI90581C (en) 1994-02-25
US5071180A (en) 1991-12-10
FI90581B (en) 1993-11-15
ATE84595T1 (en) 1993-01-15

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