EP2120645A1 - Tensioning device comprising a diverted or deflected tension spring - Google Patents

Tensioning device comprising a diverted or deflected tension spring

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Publication number
EP2120645A1
EP2120645A1 EP08715485A EP08715485A EP2120645A1 EP 2120645 A1 EP2120645 A1 EP 2120645A1 EP 08715485 A EP08715485 A EP 08715485A EP 08715485 A EP08715485 A EP 08715485A EP 2120645 A1 EP2120645 A1 EP 2120645A1
Authority
EP
European Patent Office
Prior art keywords
spring
deflection
tension spring
region
spring stiffness
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
EP08715485A
Other languages
German (de)
French (fr)
Other versions
EP2120645B1 (en
Inventor
Günther Zimmer
Martin Zimmer
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PL08715485T priority Critical patent/PL2120645T3/en
Publication of EP2120645A1 publication Critical patent/EP2120645A1/en
Application granted granted Critical
Publication of EP2120645B1 publication Critical patent/EP2120645B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
    • 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
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E05F5/027—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops with closing action
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/003—Braking devices, e.g. checks; Stops; Buffers for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/23—Combinations of elements of elements of different categories
    • E05Y2800/24—Combinations of elements of elements of different categories of springs and brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furniture, e.g. cabinets

Definitions

  • the invention relates to a traction device with a tension spring which abuts at least partially enveloping a deflection or deflection roller, a combined deceleration and acceleration device with such a traction device and a guide system with such a deceleration and acceleration device.
  • the present invention is therefore based on the problem to develop a traction device, a combined deceleration and acceleration device with such a pulling device and a guide system with a deceleration and acceleration device, in which a fraction of the spring is largely excluded.
  • the total stroke of the tension spring is at least 50% of its nominal length.
  • the tension spring comprises at least one NEN range of high spring stiffness and at least a range of low spring stiffness.
  • the area of high spring stiffness is applied to the deflection or deflection roller.
  • the quotient of the mean deflection or deflection radius and the difference stroke of the outer and inner spring region per spring turn is greater than 50.
  • FIG. 3 detail of FIG. 1
  • FIG. 4 detail of FIG. 2.
  • FIGS. 1 and 2 show a longitudinal section of a combined deceleration and acceleration device (10).
  • This comprises a carrier element (41) which is shown in FIG. 1 in a parking position (1) and in FIG. 2 in an end position (2).
  • the combined deceleration and acceleration device (10) is part of a guide system, for example a drawer guide of a piece of furniture or a sliding door arrangement.
  • the combined deceleration and acceleration device (10) for example, attached to the piece of furniture to which the drawer is relatively movable.
  • An actuator is then attached to the drawer.
  • the entrainment element (41) of the deceleration and acceleration device (10) in a partial stroke adjacent to the closed end position of the drawer.
  • the actuating element releases the carrier element (41) from the non-positively secured and / or positively secured parking position (1) and guides it in the entry stroke direction (5) along a guide device (21) into the end position (2).
  • the lifting movement of the drawer is delayed relative to the piece of furniture by means of the delay device (31).
  • the acceleration device (51) is activated, which moves the drawer counter to
  • the deceleration and acceleration device (10) remains in this case, for example, until reaching the closed end position of the drawer in engagement with the actuating element of the drawer.
  • a deceleration and acceleration device (10) can be achieved even when opening the drawer to delay and accelerate the drawer movement before reaching the open end position.
  • the deceleration and acceleration device (10) comprises a housing (11) in which the deceleration device (31), the acceleration device (51), the guide device (21) and the entrainment element (41) are arranged.
  • the housing (11) has, for example, three through holes (12). In these, the housing (11) can be fastened by means of Befest Trentsinitteln eg on the piece of furniture.
  • the retarding device (31) comprises a cylinder-piston unit (32), of which only the cylinder (33) and the piston rod (34) are shown in FIGS. 1 and 2.
  • the cylinder-piston unit (32) can be actuated pneumatically or hydraulically.
  • the displacement chamber lies in this embodiment between the piston and the cylinder head (35), the compensation chamber is limited by means of the piston and the cylinder bottom (36).
  • the stroke of the piston and the piston rod (34) is e.g. 110 millimeters.
  • the driving element (41) is pivotally mounted on the piston rod head (37).
  • the pivot axis is in the representation of Figures 1 and 2 normal to the plane of the drawing.
  • the entrainment element (41) is guided, for example, by means of two guide pins (42, 43) in the guide device (21).
  • the latter comprises two guide rails (22) arranged opposite one another in the housing (11), of which only one is shown in longitudinal section.
  • the entrainment element (41) projects out of the housing (11) with two abutment shoulders (44, 45) of different heights.
  • the abutment shoulder (44) facing away from the cylinder (33) is higher than the abutment shoulder (45) facing the cylinder (33).
  • These two abutment shoulders (45, 45) delimit a driving recess (46).
  • the two guide rails (22) in each case comprise a straight (23) and a curved portion (24) adjoining this in the direction of the cylinder (33).
  • the latter is bent in the illustrations of Figures 1 and 2 upwards.
  • the GE- Thought center lines of the guide rails (22) span a plane in which also lies the center line of the piston rod (34).
  • the driving element (41) has a spring receiving means (47).
  • the other end of the tension spring (53) is located in a similarly shaped spring receptacle (13) in the housing (11) - in Figures 1 and 2, for example, above the cylinder (33) - is attached.
  • the spring (53) is e.g. secured with two arranged at the spring ends flange-like plant thickenings (54, 55).
  • the tension spring (53) shown here has a nominal length - this is the length between the plant thickenings (54, 55) - of e.g. 199 millimeters. Their total stroke is for example 125 millimeters, which is about 63% of the nominal length.
  • the tension spring (53) is expanded to a residual stroke of 15 millimeters and, in FIG. 1, is elongated by the total stroke.
  • the tension spring (53) in this embodiment has a constant wire diameter of, for example, 0.85 millimeters. It is in one piece and includes, for example, two areas (56, 57) of different winding diameters. A first area (56) -this area (56) adjoins the catch-side receiving area of the spring (53) -has an outside diameter of 3.8 millimeters, for example. Its length in the unrestrained state is, for example, 61% of the nominal length. With this area (56), the tension spring (53) is a deflection device (71). The deflection device is in this embodiment, for example, rotatably mounted in the housing (11) deflection roller (71). But it can also be fixed.
  • the spring (53) is not tangential to the deflection or deflection device (71), but wraps around them at least partially.
  • the wrap angle of the spring (53) about the deflection roller (71) is in the embodiment shown in Figures 1 and 2 a maximum of 183 degrees.
  • the deflection roller (71), cf. Figures 3 and 4, for example, has a tread (72) which is bounded on both sides by guide washers (73).
  • the tread (72) may have transverse grooves or corrugations.
  • the diameter of the tread (72) is 17 millimeters in this embodiment.
  • the tension spring (53) lies with its inner region (58) on the running surface (72), its outer region (59) delimits the spring (53) radially outward.
  • the second region (57) of the tension spring (53), this region (57), for example, has an outer diameter of 6.6 millimeters, adjacent to a transition region (61) to the first region (56).
  • the second region (57) connects the first region (56) to the housing-side receiving region of the tension spring (53).
  • the length of the unstressed second region (57) in the exemplary embodiment is about 29% of the nominal length of the spring (53).
  • the first area (56) is thus more than twice as long as the second area (57).
  • the diameter of the second region (57) is greater than 1.5 times the diameter of the first region (56).
  • the spring stiffness of the first region (56) in the exemplary embodiment is 0.17 Newton per millimeter.
  • the spring stiffness of the second region (57) is less than one third of this value, for example 0.05 Newton per millimeter.
  • the sweeping Value of the total stiffness of the tension spring (53) is in this series connection of the spring portions (56, 57), the sum of the reciprocals of the individual spring stiffnesses.
  • the tension spring (53) can also have more than two regions of different spring stiffnesses.
  • the carrier element (41) After assembly of the combined deceleration and acceleration device (10) in a guide system, for example, with an open drawer, the carrier element (41) is in the parking position (1) shown in FIG.
  • the piston rod (34) of the cylinder-piston unit (32) is retracted.
  • the tension spring (53) is tensioned, as a result of which the energy store (53) of the acceleration device (51) is charged.
  • the tensioned tension spring (53) is the first portion (56), the portion (56) of high spring stiffness, e.g. lengthened by 14% of the nominal length of the tension spring (53).
  • the area (57) of low spring stiffness is, for example, 49% of the nominal length of the spring (53) elongated.
  • the elongated area (57) of low spring stiffness is arranged so that it does not touch the deflection roller (71).
  • the stroke of the tension spring (53) can be divided between the two partial strokes so that the maximum partial lift of the range (56) high spring stiffness does not exceed 30% of the total stroke of the tension spring (53).
  • the actuating element contacts the abutment shoulder (44) of the entraining element (41) and pulls the entrainment element (41) out of the parking position (1).
  • the entrainment element (41) is pulled along the guide device (21) from the parking position (1) shown in FIG. 1 into the end position (2) shown in FIG.
  • the piston rod (34) is pulled out.
  • the piston of the cylinder-piston unit (32) compresses the displacement space.
  • the Displacement compressed pneumatic or hydraulic medium throttled be displaced into the expansion chamber.
  • hydraulic fluid is additionally supplied from an external expansion tank into the compensation chamber. The throttling may decrease along the piston stroke movement, for example. The movement of the entrainment element (41) - and thus of the drawer - is slowed down.
  • the acceleration device (51) acts as a pulling device (51) on the entrainment element (41).
  • the tension spring (53) contracts and pulls the entrainment element (41) in the direction of the end position (2).
  • the energy store (53) is discharged.
  • the entrainment element (41) - and thus the drawer - is accelerated against the action of the delay device (31) and slowly into its e.g. closed end position out. Here she stays without jerking.
  • the tension spring (53) is now contracted until the residual stroke, cf. Figure 2.
  • the area (56) of high spring stiffness is now e.g. elongated by 1.5% of the nominal length, the range (57) low spring stiffness by 6% of the nominal length.
  • the tension spring (53) moves along the running surface (72) and rotates the deflection roller (71) in a clockwise direction, for example.
  • the turns (62) of the tension spring (53) approach each other.
  • the inner (58) and outer regions (59) of the tension spring (53), cf. Figures 3 and 4, are shifted from each other.
  • the neutral fiber of the contraction lies on the geometric centerline of the tension spring (53).
  • the radius of this neutral fiber, referred to the axis of rotation (74) of the deflection or deflection roller (71), is referred to below as the mean deflection or deflection radius (6).
  • the radius center is the midpoint of the tread radius.
  • the tensile spring (53) is subject to both the load due to the tensile force and an additional load due to the displacement of the inner (58) and outer regions (59) relative to one another.
  • the difference in displacements with respect to the single spring coil (62) is the product of the maximum partial lift of the high spring stiffness region (56) and its spring diameter divided by the product of the middle deflection or deflection radius (6) and the number of turns of the region (6). 56) high spring stiffness.
  • this difference in the deflection of the tension spring (53) is 0.08 millimeters, in the undeflected spring area caused by the deflection difference is zero.
  • the quotient of the mean deflection or deflection radius (6) and this difference stroke per spring turn is in the exemplary embodiment in the deflection region 120, in the undeflected region it goes to infinity.
  • the minimum quotient may also be smaller, for example, it may have a value of 50, without the life of the tension spring (53) is significantly affected even at a high load cycles. The tension spring (53) can thus be performed despite its large total stroke with a short nominal length.
  • the driver (41) When the drawer is opened, the driver (41) is displaced from the end position (2) into the parking position (1) by means of the actuating element.
  • the piston rod (34) with the piston is retracted, for example, almost without resistance.
  • the tension spring (53) is tensioned, wherein the elongation of the area (57) of low spring stiffness is higher than the elongation of the area (56) of high spring stiffness.
  • the portion (56) of high spring stiffness slides along the pulley (71) and rotates this counterclockwise, for example.
  • the regions (56, 57) of different spring stiffness can also differ in the wire thickness of the spring, in the material, in the shape of the turns, etc.
  • the total length of the spring, the length of the individual sections, the number and diameter of the turns, the wire diameter, the deflection or deflection radius, etc. can be varied to adapt, for example, to another stroke or to another required force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Springs (AREA)
  • Drawers Of Furniture (AREA)

Abstract

The invention relates to a tensioning device comprising a tension spring that rests against a diversion or deflection roller while at least partially being wound around it, to a combined deceleration/acceleration device comprising said tensioning device and to a guide system comprising said deceleration/acceleration device. The total spring stroke of the tension spring is at least 50% of its nominal stroke. The tension spring comprises at least one zone of high spring rigidity and at least one zone of low spring rigidity. The zone of high spring rigidity rests against the diversion or deflection roller. In the zone of high spring rigidity, the quotient of the average diversion or deflection radius and the differential stroke of the outer and inner spring zone per spring coil is greater than 50. The invention provides a device which essentialy rules out spring fracture.

Description

Zugvorrichtung mit ab- oder umgelenkter Zugfeder Pulling device with down or deflected tension spring
Beschreibung:Description:
Die Erfindung betrifft eine Zugvorrichtung mit einer Zugfeder, die an einer Ablenk- oder Umlenkrolle zumindest bereichsweise umschlingend anliegt, eine kombinierte Verzögerungs- und Beschleunigungsvorrichtung mit einer derartigen Zugvorrichtung sowie ein FührungsSystem mit einer solchen Verzögerungs- und Beschleunigungsvorrichtung.The invention relates to a traction device with a tension spring which abuts at least partially enveloping a deflection or deflection roller, a combined deceleration and acceleration device with such a traction device and a guide system with such a deceleration and acceleration device.
Aus der DE 20 2004 006 410 Ul ist eine derartige Vorrichtung bekannt. Die in dieser Vorrichtung eingesetzte Feder kann bei einer hohen Lastspielzahl brechen. Dies begrenzt die Lebens- dauer der Vorrichtung.From DE 20 2004 006 410 Ul such a device is known. The spring used in this device can break at a high load cycles. This limits the life of the device.
Der vorliegenden Erfindung liegt daher die Problemstellung zugrunde, eine Zugvorrichtung, eine kombinierte Verzögerungsund Beschleunigungsvorrichtung mit einer derartigen Zugvorrichtung sowie ein FührungsSystem mit einer Verzögerungs- und Beschleunigungsvorrichtung zu entwickeln, bei der ein Bruch der Feder weitgehend ausgeschlossen ist.The present invention is therefore based on the problem to develop a traction device, a combined deceleration and acceleration device with such a pulling device and a guide system with a deceleration and acceleration device, in which a fraction of the spring is largely excluded.
Diese Problemstellung wird mit den Merkmalen des Hauptanspruches gelöst. Dazu beträgt der Gesamthub der Zugfeder mindes- tens 50% ihrer Nennlänge. Die Zugfeder umfasst mindestens ei- nen Bereich hoher Federsteifigkeit und mindestens einen Bereich niedriger Federsteifigkeit . Der Bereich hoher Federstei- figkeit liegt an der Ablenk- oder Umlenkrolle an. Außerdem ist im Bereich der hohen Federsteifigkeit der Quotient aus dem mittleren Ablenk- oder Umlenkradius und dem Differenzhub des äußeren und inneren Federbereichs pro Federwindung größer als 50.This problem is solved with the features of the main claim. The total stroke of the tension spring is at least 50% of its nominal length. The tension spring comprises at least one NEN range of high spring stiffness and at least a range of low spring stiffness. The area of high spring stiffness is applied to the deflection or deflection roller. In addition, in the range of high spring stiffness, the quotient of the mean deflection or deflection radius and the difference stroke of the outer and inner spring region per spring turn is greater than 50.
Weitere Einzelheiten der Erfindung ergeben sich aus den Unter- ansprüchen und der nachfolgenden Beschreibung einer schematisch dargestellten Ausführungsform.Further details of the invention will become apparent from the dependent claims and the following description of a schematically illustrated embodiment.
Figur 1 : Kombinierte Verzögerungs- undFigure 1: Combined delay and
Beschleunigungsvorrichtung mit einem Mitnähmeelement in der Parkposition; Figur 2 : Kombinierte Verzögerungs- undAcceleration device with a Mitme element in the park position; Figure 2: Combined delay and
Beschleunigungsvorrichtung mit dem Mitnähmeelement in der Endposition;Acceleration device with the entrainment element in the end position;
Figur 3: Detail von Figur 1; Figur 4: Detail von Figur 2.FIG. 3: detail of FIG. 1; FIG. 4: detail of FIG. 2.
Die Figuren 1 und 2 zeigen in einem Längsschnitt eine kombi- nierte Verzögerungs- und Beschleunigungsvorrichtung (10) .FIGS. 1 and 2 show a longitudinal section of a combined deceleration and acceleration device (10).
Diese umfasst ein Mitnahmeelement (41) , das in der Figur 1 in einer Parkposition (1) und in der Figur 2 in einer Endposition (2) dargestellt ist.This comprises a carrier element (41) which is shown in FIG. 1 in a parking position (1) and in FIG. 2 in an end position (2).
Die kombinierte Verzögerungs- und Beschleunigungsvorrichtung (10) ist beispielsweise Teil eines FührungsSystems, z.B. einer Schubladenführung eines Möbelstücks oder einer Schiebetüranordnung. In einem derartigen FührungsSystem ist die kombinierte Verzögerungs- und Beschleunigungsvorrichtung (10) beispielsweise an dem Möbelstück befestigt, zu dem die Schublade relativ beweglich ist. An der Schublade ist dann ein Betätigungselement befestigt. Z.B. beim Schließen der Schublade kontaktiert in einem an die geschlossene Endlage der Schublade angrenzenden Teilhub das Betätigungselement das Mitnahmeelement (41) der Verzögerungs- und Beschleunigungsvorrichtung (10). Das Betätigungselement löst das Mitnahmeelement (41) aus der kraft- und/oder formschlüssig gesicherten Parkposition (1) und führt es in der Einfahrhubrichtung (5) entlang einer Führungseinrichtung (21) in die Endposition (2) . Dabei wird die Hubbewegung der Schublade relativ zum Möbelstück mittels der Verzögerungsvorrichtung (31) verzögert. Beispielsweise gleichzeitig mit dem Lösen des Mitnahmeele- ments (41) aus der Parkposition (1) wird die Beschleunigungs- Vorrichtung (51) aktiviert, die die Schublade entgegen derThe combined deceleration and acceleration device (10) is part of a guide system, for example a drawer guide of a piece of furniture or a sliding door arrangement. In such a guidance system, the combined deceleration and acceleration device (10) for example, attached to the piece of furniture to which the drawer is relatively movable. An actuator is then attached to the drawer. For example, when closing the drawer contacts the entrainment element (41) of the deceleration and acceleration device (10) in a partial stroke adjacent to the closed end position of the drawer. The actuating element releases the carrier element (41) from the non-positively secured and / or positively secured parking position (1) and guides it in the entry stroke direction (5) along a guide device (21) into the end position (2). The lifting movement of the drawer is delayed relative to the piece of furniture by means of the delay device (31). For example, simultaneously with the release of the entrainment element (41) from the parking position (1), the acceleration device (51) is activated, which moves the drawer counter to
Wirkung der Verzögerungsvorrichtung (31) in die z.B. geschlossene Endlage zieht. Die Verzögerungs- und Beschleunigungsvorrichtung (10) bleibt hierbei beispielsweise bis zum Erreichen der geschlossenen Endlage der Schublade im Eingriff mit dem Betätigungselement der Schublade. Selbstverständlich kann eine derartige Verzögerungs- und Beschleunigungsvorrichtung (10) auch beim Öffnen der Schublade zum Verzögern und Beschleunigen der Schubladenbewegung vor dem Erreichen der geöffneten Endlage erreicht werden.Effect of the delay device (31) in the e.g. Closed end position pulls. The deceleration and acceleration device (10) remains in this case, for example, until reaching the closed end position of the drawer in engagement with the actuating element of the drawer. Of course, such a deceleration and acceleration device (10) can be achieved even when opening the drawer to delay and accelerate the drawer movement before reaching the open end position.
Es ist auch denkbar, das Betätigungselement am Möbelstück zu befestigen und die kombinierte Verzögerungs- und Beschleunigungsvorrichtung (10) an der Schublade anzuordnen.It is also conceivable to attach the actuating element to the piece of furniture and to arrange the combined deceleration and acceleration device (10) on the drawer.
Die Verzögerungs- und Beschleunigungsvorrichtung (10) umfasst ein Gehäuse (11) , in dem die Verzögerungsvorrichtung (31) , die Beschleunigungsvorrichtung (51) , die Führungseinrichtung (21) und das Mitnahmeelement (41) angeordnet sind. Das Gehäuse (11) hat beispielsweise drei Durchgangsbohrungen (12) . In diesen kann das Gehäuse (11) mittels Befestigungsinitteln z.B. am Möbelstück befestigt werden.The deceleration and acceleration device (10) comprises a housing (11) in which the deceleration device (31), the acceleration device (51), the guide device (21) and the entrainment element (41) are arranged. The housing (11) has, for example, three through holes (12). In these, the housing (11) can be fastened by means of Befestigungsinitteln eg on the piece of furniture.
Die Verzögerungsvorrichtung (31) umfasst eine Zylinder-Kolbeneinheit (32) , von der in den Figuren 1 und 2 nur der Zylinder (33) und die Kolbenstange (34) dargestellt sind. Die Zylinder-Kolbeneinheit (32) kann pneumatisch oder hydraulisch betätigt sein. Der Verdrängungsraum liegt in diesem Ausfüh- rungsbeispiel zwischen dem Kolben und dem Zylinderkopf (35), der Ausgleichsraum wird mittels des Kolbens und des Zylinderbodens (36) begrenzt.The retarding device (31) comprises a cylinder-piston unit (32), of which only the cylinder (33) and the piston rod (34) are shown in FIGS. 1 and 2. The cylinder-piston unit (32) can be actuated pneumatically or hydraulically. The displacement chamber lies in this embodiment between the piston and the cylinder head (35), the compensation chamber is limited by means of the piston and the cylinder bottom (36).
Der Hub des Kolbens und der Kolbenstange (34) beträgt z.B. 110 Millimeter. Auf dem Kolbenstangenkopf (37) ist das Mitnahmeelement (41) schwenkbar gelagert. Die Schwenkachse liegt in der Darstellung der Figuren 1 und 2 normal zur Zeichnungsebene .The stroke of the piston and the piston rod (34) is e.g. 110 millimeters. On the piston rod head (37), the driving element (41) is pivotally mounted. The pivot axis is in the representation of Figures 1 and 2 normal to the plane of the drawing.
Das Mitnahmeelement (41) ist beispielsweise mittels zweier Führungsbolzen (42, 43) in der Führungseinrichtung (21) geführt. Letztere umfasst zwei einander gegenüber im Gehäuse (11) angeordnete Führungsschienen (22), von denen im Längsschnitt nur eine dargestellt ist. Das Mitnahmeele- ment (41) ragt mit zwei Anlageschultern (44, 45) unterschiedlicher Höhe aus dem Gehäuse (11) heraus. Hierbei ist die vom Zylinder (33) abgewandte Anlageschulter (44) höher als die dem Zylinder (33) zugewandte Anlageschulter (45) . Diese beiden Anlageschultern (45, 45) begrenzen eine Mitnahmeausnehmung (46) .The entrainment element (41) is guided, for example, by means of two guide pins (42, 43) in the guide device (21). The latter comprises two guide rails (22) arranged opposite one another in the housing (11), of which only one is shown in longitudinal section. The entrainment element (41) projects out of the housing (11) with two abutment shoulders (44, 45) of different heights. In this case, the abutment shoulder (44) facing away from the cylinder (33) is higher than the abutment shoulder (45) facing the cylinder (33). These two abutment shoulders (45, 45) delimit a driving recess (46).
Die beiden Führungsschienen (22) umfassen jeweils einen geraden (23) und einen an diesen in Richtung des Zylinders (33) angrenzenden gebogenen Abschnitt (24) . Letzterer ist in den Darstellungen der Figuren 1 und 2 nach oben gebogen. Die ge- dachten Mittellinien der Führungsschienen (22) spannen eine Ebene auf, in der auch die Mittellinie der Kolbenstange (34) liegt .The two guide rails (22) in each case comprise a straight (23) and a curved portion (24) adjoining this in the direction of the cylinder (33). The latter is bent in the illustrations of Figures 1 and 2 upwards. The GE- Thought center lines of the guide rails (22) span a plane in which also lies the center line of the piston rod (34).
An seiner der Mitnahmeausnehmung (46) abgewandten Seite hat das Mitnahmeeleinent (41) eine Federaufnähme (47) . Diese um- fasst beispielsweise eine u-förmige Ausnehmung, in die eine Zugfeder (53) eingelegt ist. Das andere Ende der Zugfeder (53) liegt in einer ähnlich gestalteten Federaufnahme (13), die im Gehäuse (11) - in den Figuren 1 und 2 beispielsweise oberhalb des Zylinders (33) - befestigt ist. Gegen ein Herausrutschen ist die Feder (53) z.B. mit zwei an den Federenden angeordneten flanschartigen Anlageverdickungen (54, 55) gesichert.At its side remote from the driving recess (46), the driving element (41) has a spring receiving means (47). This includes, for example, a U-shaped recess in which a tension spring (53) is inserted. The other end of the tension spring (53) is located in a similarly shaped spring receptacle (13) in the housing (11) - in Figures 1 and 2, for example, above the cylinder (33) - is attached. Against slipping out, the spring (53) is e.g. secured with two arranged at the spring ends flange-like plant thickenings (54, 55).
Die hier dargestellte Zugfeder (53) hat eine Nennlänge - dies ist die Länge zwischen den Anlageverdickungen (54, 55) - von z.B. 199 Millimetern. Ihr Gesamthub beträgt beispielsweise 125 Millimeter, das sind etwa 63 % der Nennlänge. In der Darstellung der Figur 2 ist die Zugfeder (53) bis auf einen Rest- hub von 15 Millimetern entspannt und in der Figur 1 um den Ge- samthub gelängt.The tension spring (53) shown here has a nominal length - this is the length between the plant thickenings (54, 55) - of e.g. 199 millimeters. Their total stroke is for example 125 millimeters, which is about 63% of the nominal length. In the representation of FIG. 2, the tension spring (53) is expanded to a residual stroke of 15 millimeters and, in FIG. 1, is elongated by the total stroke.
Die Zugfeder (53) hat in diesem Ausführungsbeispiel einen konstanten Drahtdurchmesser von z.B. 0,85 Millimetern. Sie ist einteilig und umfasst beispielsweise zwei Bereiche (56, 57) unterschiedlichen Wicklungsdurchmessers. Ein erster Bereich (56) - dieser Bereich (56) grenzt an den mitnehmerseiti- gen Aufnahmebereich der Feder (53) an - hat beispielsweise einen Außendurchmesser von 3,8 Millimetern. Seine Länge im unge- spannten Zustand beträgt z.B. 61 % der Nennlänge. Mit diesem Bereich (56) liegt die Zugfeder (53) um eine Umlenkvorrichtung (71) . Die Umlenkvorrichtung ist in diesem Ausführungsbeispiel eine z.B. drehbar im Gehäuse (11) gelagerte Umlenkrolle (71) . Sie kann aber auch feststehend sein. Auch eine Ausbildung als Ablenkvorrichtung oder Ablenkrolle, z.B. bei einem Ablenkwinkel von 15 Grad oder 90 Grad, ist denkbar. In allen diesen Fällen verläuft die Feder (53) nicht tangential zur Ablenk- oder Umlenkvorrichtung (71) , sondern umschlingt diese zumindest bereichsweise. Der Umschlingungswinkel der Feder (53) um die Umlenkrolle (71) beträgt in dem in den Figuren 1 und 2 dargestellten Ausführungsbeispiel maximal 183 Grad.The tension spring (53) in this embodiment has a constant wire diameter of, for example, 0.85 millimeters. It is in one piece and includes, for example, two areas (56, 57) of different winding diameters. A first area (56) -this area (56) adjoins the catch-side receiving area of the spring (53) -has an outside diameter of 3.8 millimeters, for example. Its length in the unrestrained state is, for example, 61% of the nominal length. With this area (56), the tension spring (53) is a deflection device (71). The deflection device is in this embodiment, for example, rotatably mounted in the housing (11) deflection roller (71). But it can also be fixed. Also one Training as a deflector or deflection roller, for example at a deflection angle of 15 degrees or 90 degrees, is conceivable. In all these cases, the spring (53) is not tangential to the deflection or deflection device (71), but wraps around them at least partially. The wrap angle of the spring (53) about the deflection roller (71) is in the embodiment shown in Figures 1 and 2 a maximum of 183 degrees.
Die Umlenkrolle (71), vgl. die Figuren 3 und 4, hat beispielsweise eine Lauffläche (72), die beidseitig von Führungsschei- ben (73) begrenzt ist. Die Lauffläche (72) kann Quernuten oder -sicken aufweisen. Der Durchmesser der Lauffläche (72) beträgt in diesem Ausführungsbeispiel 17 Millimeter. Die Zugfeder (53) liegt mit ihrem Innenbereich (58) auf der Lauffläche (72) auf, ihr Außenbereich (59) begrenzt die Feder (53) radial nach außen.The deflection roller (71), cf. Figures 3 and 4, for example, has a tread (72) which is bounded on both sides by guide washers (73). The tread (72) may have transverse grooves or corrugations. The diameter of the tread (72) is 17 millimeters in this embodiment. The tension spring (53) lies with its inner region (58) on the running surface (72), its outer region (59) delimits the spring (53) radially outward.
Der zweite Bereich (57) der Zugfeder (53), dieser Bereich (57) hat beispielsweise einen Außendurchmesser von 6,6 Millimetern, grenzt mit einem Übergangsbereich (61) an den ersten Bereich (56) an. Der zweite Bereich (57) verbindet den ersten Bereich (56) mit dem gehäuseseitigen Aufnahmebereich der Zugfeder (53) . Die Länge des ungespannten zweiten Bereiches (57) beträgt im Ausführungsbeispiel etwa 29 % der Nennlänge der Feder (53) . Der erste Bereich (56) ist damit mehr als doppelt so lang wie der zweite Bereich (57) . Der Durchmesser des zweiten Bereichs (57) ist größer als das 1,5-fache des Durchmessers des ersten Bereichs (56) .The second region (57) of the tension spring (53), this region (57), for example, has an outer diameter of 6.6 millimeters, adjacent to a transition region (61) to the first region (56). The second region (57) connects the first region (56) to the housing-side receiving region of the tension spring (53). The length of the unstressed second region (57) in the exemplary embodiment is about 29% of the nominal length of the spring (53). The first area (56) is thus more than twice as long as the second area (57). The diameter of the second region (57) is greater than 1.5 times the diameter of the first region (56).
Die Federsteifigkeit des ersten Bereichs (56) beträgt im Ausführungsbeispiel 0,17 Newton pro Millimeter. Die Federsteifigkeit des zweiten Bereiches (57) beträgt weniger als ein Drittel dieses Wertes, z.B. 0,05 Newton pro Millimeter. Der Kehr- wert der Gesamtsteifigkeit der Zugfeder (53) ist bei dieser Hintereinanderschaltung der Federbereiche (56, 57) die Summe der Kehrwerte der einzelnen Federsteifigkeiten. Die Zugfeder (53) kann auch mehr als zwei Bereiche unterschiedlicher Federsteifigkeiten aufweisen.The spring stiffness of the first region (56) in the exemplary embodiment is 0.17 Newton per millimeter. The spring stiffness of the second region (57) is less than one third of this value, for example 0.05 Newton per millimeter. The sweeping Value of the total stiffness of the tension spring (53) is in this series connection of the spring portions (56, 57), the sum of the reciprocals of the individual spring stiffnesses. The tension spring (53) can also have more than two regions of different spring stiffnesses.
Nach der Montage der kombinierten Verzögerungs- und Beschleunigungsvorrichtung (10) in ein FührungsSystem steht beispielsweise bei einer geöffneten Schublade das Mitnahmeelement (41) in der in der Figur 1 dargestellten Parkposition (1) . Die Kolbenstange (34) der Zylinder-Kolbeneinheit (32) ist eingefahren. Die Zugfeder (53) ist gespannt, wodurch der Energiespeicher (53) der Beschleunigungsvorrichtung (51) geladen ist.After assembly of the combined deceleration and acceleration device (10) in a guide system, for example, with an open drawer, the carrier element (41) is in the parking position (1) shown in FIG. The piston rod (34) of the cylinder-piston unit (32) is retracted. The tension spring (53) is tensioned, as a result of which the energy store (53) of the acceleration device (51) is charged.
In der gespannten Zugfeder (53) ist der erste Bereich (56), der Bereich (56) hoher Federsteifigkeit , z.B. um 14 % der Nennlänge der Zugfeder (53) gelängt. Der Bereich (57) niedriger Federsteifigkeit ist beispielsweise um 49 % der Nennlänge der Feder (53) gelängt. Der gelängte Bereich (57) niedriger Federsteifigkeit ist so angeordnet, dass er die Umlenkrolle (71) nicht berührt. Der Hub der Zugfeder (53) kann so zwischen den beiden Teilhüben aufgeteilt sein, dass der maximale Teilhub des Bereichs (56) hoher Federsteifigkeit 30 % des Gesamthubs der Zugfeder (53) nicht überschreitet.In the tensioned tension spring (53) is the first portion (56), the portion (56) of high spring stiffness, e.g. lengthened by 14% of the nominal length of the tension spring (53). The area (57) of low spring stiffness is, for example, 49% of the nominal length of the spring (53) elongated. The elongated area (57) of low spring stiffness is arranged so that it does not touch the deflection roller (71). The stroke of the tension spring (53) can be divided between the two partial strokes so that the maximum partial lift of the range (56) high spring stiffness does not exceed 30% of the total stroke of the tension spring (53).
Wird die Schublade geschlossen, kontaktiert das Betätigungselement die Anlageschulter (44) des Mitnahmeelements (41) und zieht das Mitnahmeelement (41) aus der Parkposition (1) heraus. Das Mitnahmeelement (41) wird entlang der Führungsein- richtung (21) von der in der Figur 1 dargestellten Parkposition (1) in die in der Figur 2 gezeigten Endposition (2) gezogen. Die Kolbenstange (34) wird herausgezogen. In der Verzögerungsvorrichtung (31) komprimiert Kolben der Zylinder-Kolbeneinheit (32) den Verdrängungsraum. Hierbei kann das im Ver- drängungsraum komprimierte pneumatische oder hydraulische Medium gedrosselt in den Ausgleichsraum verdrängt werden. Gegebenenfalls wird, z.B. bei einer hydraulischen Zylinder-Kolbeneinheit (32), zusätzlich hydraulisches Fluid aus einem exter- nen Ausgleichsbehälter in den Ausgleichsraum zugeführt. Die Drosselung kann entlang der Kolbenhubbewegung z.B. abnehmen. Die Bewegung des Mitnahmeelernents (41) - und damit der Schublade - wird abgebremst.When the drawer is closed, the actuating element contacts the abutment shoulder (44) of the entraining element (41) and pulls the entrainment element (41) out of the parking position (1). The entrainment element (41) is pulled along the guide device (21) from the parking position (1) shown in FIG. 1 into the end position (2) shown in FIG. The piston rod (34) is pulled out. In the retarding device (31), the piston of the cylinder-piston unit (32) compresses the displacement space. In this case, the Displacement compressed pneumatic or hydraulic medium throttled be displaced into the expansion chamber. Optionally, for example, in the case of a hydraulic cylinder-piston unit (32), hydraulic fluid is additionally supplied from an external expansion tank into the compensation chamber. The throttling may decrease along the piston stroke movement, for example. The movement of the entrainment element (41) - and thus of the drawer - is slowed down.
Mit dem Beginn der Hubbewegung wirkt die Beschleunigungsvorrichtung (51) als Zugvorrichtung (51) auf das Mitnahmeelement (41) . Die Zugfeder (53) zieht sich zusammen und zieht das Mitnahmeelement (41) in Richtung der Endposition (2) . Der Energiespeicher (53) wird entladen. Das Mitnahmeelement (41) - und damit die Schublade - wird entgegen der Wirkung der Verzögerungsvorrichtung (31) beschleunigt und langsam in ihre z.B. geschlossene Endlage geführt. Hier bleibt sie ruckfrei stehen. Die Zugfeder (53) ist nun bis auf den Resthub kontrahiert, vgl. Figur 2. Der Bereich (56) hoher Federsteifigkeit ist nun z.B. um 1,5 % der Nennlänge gelängt, der Bereich (57) niedriger Federsteifigkeit um 6 % der Nennlänge.With the beginning of the lifting movement, the acceleration device (51) acts as a pulling device (51) on the entrainment element (41). The tension spring (53) contracts and pulls the entrainment element (41) in the direction of the end position (2). The energy store (53) is discharged. The entrainment element (41) - and thus the drawer - is accelerated against the action of the delay device (31) and slowly into its e.g. closed end position out. Here she stays without jerking. The tension spring (53) is now contracted until the residual stroke, cf. Figure 2. The area (56) of high spring stiffness is now e.g. elongated by 1.5% of the nominal length, the range (57) low spring stiffness by 6% of the nominal length.
Bei ihrer Kontraktion wandert die Zugfeder (53) entlang der Lauffläche (72) und dreht die Umlenkrolle (71) beispielsweise im Uhrzeigersinn. Die Windungen (62) der Zugfeder (53) nähern sich einander. Die Innen- (58) und Außenbereiche (59) der Zugfeder (53), vgl. die Figuren 3 und 4, werden gegeneinander verschoben. Solange sich die Windungen im Innenbereich (58) nicht gegenseitig behindern, liegt die neutrale Faser der Kon- traktion auf der geometrischen Mittellinie der Zugfeder (53) . Der Radius dieser neutralen Faser, bezogen auf die Drehachse (74) der Ablenk- oder Umlenkrolle (71) , wird im Folgenden als mittlerer Ablenk- oder Umlenkradius (6) bezeichnet. Bei einer feststehenden Ablenk- oder Umlenkvorrichtung ist der Radiusmittelpunkt der Mittelpunkt des Laufflächenradius .During its contraction, the tension spring (53) moves along the running surface (72) and rotates the deflection roller (71) in a clockwise direction, for example. The turns (62) of the tension spring (53) approach each other. The inner (58) and outer regions (59) of the tension spring (53), cf. Figures 3 and 4, are shifted from each other. As long as the turns in the interior (58) do not interfere with each other, the neutral fiber of the contraction lies on the geometric centerline of the tension spring (53). The radius of this neutral fiber, referred to the axis of rotation (74) of the deflection or deflection roller (71), is referred to below as the mean deflection or deflection radius (6). For a fixed deflector, the radius center is the midpoint of the tread radius.
Bei der Um- oder Ablenkung wirkt auf die Zugfeder (53) sowohl die Belastung durch die Zugkraft als auch eine zusätzliche Belastung durch die Verschiebung der Innen- (58) und Außenbereiche (59) gegeneinander. Die auf die einzelne Federwindung (62) bezogene Differenz der Verschiebungen ist das Produkt aus dem maximalen Teilhub des Bereichs (56) hoher Federsteifigkeit und seinem Federdurchmesser, dividiert durch das Produkt aus dem mittleren Ablenk- oder Umlenkradius (6) und der Windungszahl des Bereichs (56) hoher Federsteifigkeit . Im Ausführungsbeispiel beträgt diese Differenz im Umlenkbereich der Zugfeder (53) 0,08 Millimeter, im nicht umgelenkten Federbereich ist die durch die Umlenkung hervorgerufene Differenz Null.In the case of deflection or deflection, the tensile spring (53) is subject to both the load due to the tensile force and an additional load due to the displacement of the inner (58) and outer regions (59) relative to one another. The difference in displacements with respect to the single spring coil (62) is the product of the maximum partial lift of the high spring stiffness region (56) and its spring diameter divided by the product of the middle deflection or deflection radius (6) and the number of turns of the region (6). 56) high spring stiffness. In the exemplary embodiment, this difference in the deflection of the tension spring (53) is 0.08 millimeters, in the undeflected spring area caused by the deflection difference is zero.
Der Quotient aus dem mittleren Ablenk- oder Umlenkradius (6) und diesem Differenzhub pro Federwindung beträgt im Ausführungsbeispiel im Umlenkbereich 120, im nicht umgelenkten Be- reich geht er gegen Unendlich. Der minimale Quotient kann auch kleiner sein, beispielsweise kann er einen Wert von 50 haben, ohne dass die Lebensdauer der Zugfeder (53) selbst bei einer hohen Lastspielzahl nennenswert beeinträchtigt wird. Die Zugfeder (53) kann somit trotz ihres großen Gesamthubs mit einer kurzen Nennlänge ausgeführt werden.The quotient of the mean deflection or deflection radius (6) and this difference stroke per spring turn is in the exemplary embodiment in the deflection region 120, in the undeflected region it goes to infinity. The minimum quotient may also be smaller, for example, it may have a value of 50, without the life of the tension spring (53) is significantly affected even at a high load cycles. The tension spring (53) can thus be performed despite its large total stroke with a short nominal length.
Beim Öffnen der Schublade wird der Mitnehmer (41) mittels des Betätigungselements von der Endposition (2) in die Parkposition (1) verschoben. Die Kolbenstange (34) mit dem Kolben wird beispielsweise nahezu widerstandsfrei eingefahren. Die Zugfeder (53) wird gespannt, wobei die Dehnung des Bereichs (57) niedriger Federsteifigkeit höher ist als die Dehnung des Bereichs (56) hoher Federsteifigkeit . Der Bereich (56) hoher Federsteifigkeit gleitet entlang der Umlenkrolle (71) und dreht diese z.B. entgegen dem Uhrzeigersinn. Mittels der Quernuten oder -stege auf der Lauffläche (72) kann der Gleitweg der Zugfeder (53) auf der Umlenkrolle (71) begrenzt werden.When the drawer is opened, the driver (41) is displaced from the end position (2) into the parking position (1) by means of the actuating element. The piston rod (34) with the piston is retracted, for example, almost without resistance. The tension spring (53) is tensioned, wherein the elongation of the area (57) of low spring stiffness is higher than the elongation of the area (56) of high spring stiffness. The portion (56) of high spring stiffness slides along the pulley (71) and rotates this counterclockwise, for example. By means of the transverse grooves or webs on the running surface (72), the sliding path of the tension spring (53) on the deflection roller (71) can be limited.
Sobald das Mitnähmeelement (41) die Parkposition (1) erreicht hat, löst sich das Betätigungselement von der kombinierten Verzögerungs- und Beschleunigungsvorrichtung (10). Der Energiespeicher (53) ist wieder geladen. Die Schublade kann nun vollständig geöffnet werden.As soon as the entrainment element (41) has reached the parking position (1), the actuation element is released from the combined deceleration and acceleration device (10). The energy store (53) is charged again. The drawer can now be opened completely.
Die Bereiche (56, 57) unterschiedlicher Federsteifigkeit können sich auch in der Drahtstärke der Feder, im Werkstoff, in der Gestalt der Windungen, etc. unterscheiden. Zur Anpassung beispielsweise an einen anderen Hub oder an eine andere erfor- derliche Kraft kann z.B. die Gesamtlänge der Feder, die Länge der einzelnen Teilbereiche, die Anzahl und der Durchmesser der Windungen, der Drahtdurchmesser, der Umlenk- oder Ablenkradius etc. variiert werden. The regions (56, 57) of different spring stiffness can also differ in the wire thickness of the spring, in the material, in the shape of the turns, etc. For example, the total length of the spring, the length of the individual sections, the number and diameter of the turns, the wire diameter, the deflection or deflection radius, etc. can be varied to adapt, for example, to another stroke or to another required force.
Bezugszeichenliste :List of reference numbers:
1 Parkposition1 parking position
2 Endposition2 end position
5 Einfahrhubrichtung5 retraction stroke direction
6 mittlerer Ablenk- oder Umlenkradius6 medium deflection or deflection radius
10 Kombinierte Verzögerungs- und Beschleunigungsvorrichtung10 Combined deceleration and acceleration device
11 Gehäuse11 housing
12 Durchgangsbohrungen12 through holes
13 Federaufnahme13 spring retainer
21 Führungseinrichtung21 guide device
22 Führungsschienen22 guide rails
23 gerader Abschnitt von ( 22)23 straight section of (22)
24 gebogener Abschnitt von24 curved section of
31 Verzögerungsvorrichtung31 delay device
32 Zylinder-Kolbeneinheit32 cylinder piston unit
33 Zylinder33 cylinders
34 Kolbenstange34 piston rod
35 Zylinderkopf35 cylinder head
36 ZyIinderboden36 cyinder floor
37 Kolbenstangenkopf37 piston rod end
41 Mitnahmeelement41 entrainment element
42 Führungsbo1zen42 guide holes
43 Führungsbolzen43 guide pins
44 Anlageschulter44 contact shoulder
45 Anlageschulter45 contact shoulder
46 Mitnahmeausnehmung46 driving recess
47 Federaufnahme 51 Beschleunigungsvorrichtung, Zugvorrichtung47 spring receiver 51 accelerating device, pulling device
53 Zugfeder, Energiespeicher 54 Anlageverdickungen 55 Anlageverdickungen 56 erster Bereich von (53), Bereich hoher53 Tension spring, energy storage 54 Thickening of plant 55 Plant thickening 56 First range of (53), range high
Federsteifigkeitspring stiffness
57 zweiter Bereich von (53), Bereich niedriger57 second area of (53), area lower
Federsteifigkeitspring stiffness
58 Innenbereich von (53)58 interior of (53)
59 Außenbereich von (53)59 Exterior of (53)
61 Übergangsbereich61 transition area
62 Windungen62 turns
71 UmIenkvorrichtung , Umlenkrolle71 reversing device, pulley
72 Lauffläche72 tread
73 FührungsScheiben73 guide washers
74 Drehachse 74 axis of rotation

Claims

13 . 02 . 08Patentansprüche: 13. 02. 08Patentansprüche:
1. Zugvorrichtung (51) mit einer Zugfeder (53) und mit einer Ablenk- oder Umlenkvorrichtung (71), wobei die Zugfeder (53) an der Ablenk- oder Umlenkvorrichtung (71) zumindest bereichs- weise umschlingend anliegt, dadurch gekennzeichnet, dass der Gesamthub der Zugfeder (53) mindestens 50% ihrer Nennlänge beträgt, dass die Zugfeder (53) mindestens einen Bereich (56) hoher Federsteifigkeit und mindestens einen Bereich (57) niedriger Federsteifigkeit umfasst, dass der Bereich (56) hoher Federsteifigkeit an der Ablenk- oder Umlenkvorrichtung (71) anliegt und dass im Bereich (56) der hohen Federsteifigkeit der Quotient aus dem mittleren Ablenk- oder Umlenkradius (6) und dem Differenzhub des äußeren (59) und inneren Federbereichs (58) pro Federwindung (62) größer als 50 ist.1. traction device (51) with a tension spring (53) and with a deflection or deflection device (71), wherein the tension spring (53) at the deflecting or deflecting device (71) at least partially wraps umschlingend, characterized in that the Total tension of the tension spring (53) is at least 50% of its nominal length, that the tension spring (53) comprises at least one area (56) of high spring stiffness and at least one area (57) of low spring stiffness that the area (56) of high spring stiffness at the deflection point or deflection device (71) and that in the region (56) of the high spring stiffness, the quotient of the mean deflection or deflection radius (6) and the difference of the outer (59) and inner spring range (58) per spring turn (62) greater than 50 is.
2. Zugvorrichtung (51) nach Anspruch 1, dadurch gekennzeich- net, dass der Bereich (56) hoher Federsteifigkeit einen Teilhub aufweist, der maximal 30 % des Gesamthubes der Zugfeder (53) beträgt.2. pulling device (51) according to claim 1, marked thereby, that the region (56) of high spring stiffness has a partial lift, which is a maximum of 30% of the total stroke of the tension spring (53).
3. Zugvorrichtung (51) nach Anspruch 1, dadurch gekennzeichnet, dass die Federsteifigkeit des Bereichs (56) hoher Feder- steifigkeit mindestens dem Dreifachen der Federsteifigkeit des Bereichs (57) niedriger Federsteifigkeit entspricht. 3. pulling device (51) according to claim 1, characterized in that the spring stiffness of the region (56) of high spring stiffness at least three times the spring stiffness of the region (57) corresponds to low spring stiffness.
4. Zugvorrichtung (51) nach Anspruch 1 oder 3, dadurch gekennzeichnet, dass die Drahtstärke der Zugfeder (53) in beiden Bereichen (56, 57) identisch ist.4. pulling device (51) according to claim 1 or 3, characterized in that the wire thickness of the tension spring (53) in both areas (56, 57) is identical.
5. Zugvorrichtung (51) nach Anspruch 1, 3 oder 4, dadurch gekennzeichnet, dass der Außendurchmesser der Zugfeder (53) im Bereich (57) der niedrigen Federsteifigkeit mindestens das 1,5-fache des Außendurchmessers der Zugfeder (53) im Be- reich (56) der hohen Federsteifigkeit entspricht.5. pulling device (51) according to claim 1, 3 or 4, characterized in that the outer diameter of the tension spring (53) in the region (57) of the low spring stiffness at least 1.5 times the outer diameter of the tension spring (53) in the loading rich (56) corresponds to the high spring stiffness.
6. Zugvorrichtung (51) nach Anspruch 1 oder 5, dadurch gekennzeichnet, dass der Bereich (56) hoher Federsteifigkeit mindes- tens doppelt so lang ist wie der Bereich (57) niedriger Federsteifigkeit .6. pulling device (51) according to claim 1 or 5, characterized in that the region (56) of high spring stiffness at least twice as long as the region (57) low spring stiffness.
7. Zugvorrichtung (51) nach Anspruch 1, dadurch gekennzeich- net, dass der Umschlingungswinkel der Zugfeder (53) um die Ablenk- oder Umlenkvorrichtung (71) mindestens 90 Grad beträgt .7. pulling device (51) according to claim 1, marked thereby, that the wrap angle of the tension spring (53) to the deflection or deflection device (71) is at least 90 degrees.
8. Kombinierte Verzögerungs- und Beschleunigungsvorrichtung (10) mit einem entlang einer Führungseinrichtung (21) aus einer kraft- und/oder formschlüssig gesicherten Parkposition (1) in eine Endposition (2) führbaren Mitnahmeelement (41) , wobei die Verzögerungsvorrichtung (31) der Verzöge- rungs- und Beschleunigungsvorrichtung (10) eine pneumatische oder hydraulische Zylinder-Kolbeneinheit (32) umfasst, deren Kolbenstange (34) mit dem Mitnähmeelement (41) verbunden ist und wobei die Beschleunigungsvorrichtung (51) einen mit dem Mitnahmeelement (41) verbundenen Energiespeicher (53) umfasst, der in der Parkposition (1) geladen ist, wobei der Energiespeicher (53) eine Zugfeder (53) ist, die an einer Ablenkoder Umlenkvorrichtung (71) zumindest bereichsweise umschlingend anliegt, dadurch gekennzeichnet, - dass der Gesamthub der Zugfeder (53) mindestens 50% ihrer Nennlänge beträgt, dass die Zugfeder (53) mindestens einen Bereich (56) hoher Federsteifigkeit und mindestens einen Bereich (57) niedriger Federsteifigkeit umfasst, - dass der Bereich (56) hoher Federsteifigkeit an der Ablenk- oder Umlenkvorrichtung (71) anliegt und dass im Bereich (56) der hohen Federsteifigkeit der Quotient aus dem mittleren Ablenk- oder Umlenkradius (6) und dem Differenzhub des äußeren (59) und inneren Federbe- reichs (58) pro Federwindung (62) größer als 50 ist.8. Combined deceleration and acceleration device (10) with a along a guide device (21) from a force and / or positively secured parking position (1) in an end position (2) feasible entrainment element (41), wherein the delay device (31) of Deceleration and acceleration device (10) comprises a pneumatic or hydraulic cylinder-piston unit (32), the piston rod (34) is connected to the Mitnähmeelement (41) and wherein the acceleration device (51) connected to the driving element (41) energy storage (53), which is loaded in the parking position (1), wherein the energy store (53) is a tension spring (53) abutting at least partially in a deflecting or deflecting device (71), characterized in that - the total stroke of the tension spring (53) is at least 50 % of its nominal length is that the tension spring (53) comprises at least one portion (56) of high spring stiffness and at least one portion (57) low spring stiffness, - that the region (56) of high spring stiffness on the deflection or deflection device (71) is applied and in the area (56) of the high spring rigidity, the quotient of the mean deflection or deflection radius (6) and the difference of the outer (59) and inner spring area (58) per spring turn (62) is greater than 50.
9. FührungsSystem mit einer kombinierten Verzögerungs- und Beschleunigungsvorrichtung (10) nach Anspruch 8. A guide system comprising a combined deceleration and acceleration device (10) according to claim 8.
EP08715485A 2007-02-16 2008-02-13 Tensioning device comprising a diverted or deflected tension spring Active EP2120645B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08715485T PL2120645T3 (en) 2007-02-16 2008-02-13 Tensioning device comprising a diverted or deflected tension spring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007008363A DE102007008363B3 (en) 2007-02-16 2007-02-16 Pulling device with down or deflected tension spring
PCT/DE2008/000256 WO2008098563A1 (en) 2007-02-16 2008-02-13 Tensioning device comprising a diverted or deflected tension spring

Publications (2)

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EP2120645A1 true EP2120645A1 (en) 2009-11-25
EP2120645B1 EP2120645B1 (en) 2013-01-09

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US (1) US8186489B2 (en)
EP (1) EP2120645B1 (en)
JP (1) JP5284287B2 (en)
DE (1) DE102007008363B3 (en)
ES (1) ES2404005T3 (en)
PL (1) PL2120645T3 (en)
WO (1) WO2008098563A1 (en)

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Also Published As

Publication number Publication date
DE102007008363B3 (en) 2008-09-18
US20100007254A1 (en) 2010-01-14
WO2008098563A1 (en) 2008-08-21
PL2120645T3 (en) 2013-06-28
ES2404005T3 (en) 2013-05-23
US8186489B2 (en) 2012-05-29
JP5284287B2 (en) 2013-09-11
EP2120645B1 (en) 2013-01-09
JP2010517728A (en) 2010-05-27

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