EP1040065B1 - Clamp for holding flat objects - Google Patents

Clamp for holding flat objects Download PDF

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Publication number
EP1040065B1
EP1040065B1 EP98942447A EP98942447A EP1040065B1 EP 1040065 B1 EP1040065 B1 EP 1040065B1 EP 98942447 A EP98942447 A EP 98942447A EP 98942447 A EP98942447 A EP 98942447A EP 1040065 B1 EP1040065 B1 EP 1040065B1
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EP
European Patent Office
Prior art keywords
clamp
legs
actuating device
end position
leg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98942447A
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German (de)
French (fr)
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EP1040065A1 (en
Inventor
Walter Reist
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Ferag AG
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Ferag AG
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Publication date
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Publication of EP1040065A1 publication Critical patent/EP1040065A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/003Delivering or advancing articles from machines; Advancing articles to or into piles by grippers

Definitions

  • the present invention relates to a clip for holding of flat objects, especially flexible ones Objects like single and multi-leaf Printed products, according to the preamble of claim 1 and a conveyor with a number of such brackets to promote a product formation.
  • a known clip of this type as described in EP-A-0 767 125 is disclosed has two clamp legs, which are rotatably mounted on a bearing axis.
  • This Bracket legs are closed by a locking device that the brace between them, in one Closed position.
  • the clamp legs can move away from each other into their or swivel release position.
  • compression spring available on the Clamp leg exerts a spreading force and so the Clamp leg holds in a given open position. Due to the construction of this known bracket but the brackets can only be one open relatively small angle.
  • the present invention is based on the object to create a bracket of the type mentioned at the clamp legs with a simple mechanical construction safe and precise between the closing and the Open position moved back and forth while doing one compared to a clip according to the prior art significantly larger angle can be pivoted.
  • the clamp legs in their Closing position pressing against each other Actuator causes movement in their another end position by means of the expansion element controlled pivoting of the staple leg (s) in the open position.
  • the Possibility of bracing the legs in two each other actively moving in opposite directions allows the two clamp legs at a certain time to a controlled, precise closing or To initiate opening movement, in particular by one Object while moving the clamps to release exactly. Since the clamp legs are in Cross the closed position adjacent to the bearing axis can open the clamp legs by a lot large angle can be pivoted.
  • This clip 1 has two clip legs 2 of equal length, 3, which can be rotated individually on a bearing axis 4 are pivotally mounted.
  • the swivel axis of the two Bracket legs 2, 3 are designated in Fig. 2 with 4a.
  • the Bearing axis 4 is mounted in a bearing part 5.
  • to Storage of the clamp legs 2, 3 are at their end parts 6 or 7 tabs 8 and 9 (Fig. 2) formed the Grip bearing axis 4 and in the longitudinal direction itself are arranged alternately. As shown in Figs. 1-3 the two end parts 6, 7 cross each other Bracket legs 2, 3, i.e. the tabs 8 of the end part 6 enforce the end part 7 of the other clamp leg 3 and vice versa.
  • the clamp legs 2, 3 Through this design and arrangement of End parts 6, 7 of the clamp legs 2, 3, it is possible to two clamp legs 2, 3 through a very large angle to pivot away from each other, like that even closer will be described.
  • the clamp legs 2, 3 In the lower, to the end parts 6, 7 adjoining area, the clamp legs 2, 3 be provided with an opening 10 (Fig. 2), through the Shape and size of the elasticity behavior of the Bracket legs 2, 3 is also determined.
  • the two Bracket legs 2, 3 between a closed position and an open or release position pivoted back and forth become. 1 and 3 are in the Closing leg 2, 3 with solid lines are shown. In contrast, they are clamp legs 2 in the open position, 3 indicated by dash-dotted lines in these figures and with 2 ' or 3 '. As is apparent from Fig. 1, are in in the closed position, the two clamp legs 2, 3 symmetrical with respect to a central plane M.
  • the elastic Bracket legs 2, 3 are biased such that they are in the closed position with its free ends on the an object not shown in FIGS. 1-3 Apply clamping force. This is in Fig. 1 by the indicated by dashed lines, that would cross in the closed position they would not be in contact with each other.
  • the actuator 12 is between a first End position 13 and a second end position 14 translationally back and forth in the direction of arrow A. displaceable.
  • the direction of displacement A runs perpendicular to the pivot axis 4a of the clamp legs 2, 3.
  • the facilities, e.g. Control curves, for translational Moving the actuator 12 are shown in Figs. 1-3 not shown.
  • the arrows C in FIG or D the displacement forces indicated on the Actuate actuator 12 to the latter from the first end position 13 in the second end position 14 and to move the other way around. From this representation it becomes clearly that the displacement forces C, D on two with respect to the clamp legs 2, 3 opposite Attack sides, thereby avoiding that when Moving the actuator 12 on the bracket 1 torques can be exerted.
  • the place where the End parts 6, 7 of the clamp legs 2, 3 in the closed position cross, lies between the two end positions 13, 14 of the actuating device 12.
  • the actuator 12 has a between Bracket legs 2, 3 arranged expansion element 15 and two closing elements 16, 17 on the outside the staple legs 2, 3 run.
  • the expansion element 15 is firmly connected to the closing elements 16, 17. Consequently extend the clamp legs 2, 3 between the Spreading element 15 and one of the closing elements 16, 17 through.
  • the two point Bracket legs 2, 3 each have an offset 18 or 19 (Fig. 3). Through each of these offsets 18, 19 one Rest area 20 and 21 formed on the outside Page 22 or 23 of the staple legs 2 or 3.
  • the actuating device 12 is in the second End position 14, the clamp legs 2, 3 take their Closed position, in which, as mentioned, on the exert a clamping effect. there bring the locking elements 16, 17 to the outer side 22 or 23 of the associated clamp leg 2, 3 a Clamping force K1 or K2 on (Fig. 3).
  • this second End position 14 is the actuator 12 through the Locking surfaces 20, 21 secured in their position.
  • brackets are suitable using the Fig. 1-3 described type especially for use in Conveyors used to transport Formations of flat objects form these formations in the area of one (or possibly both) side margins to capture. 4-8 will now be different Variants of such funding facilities explained in more detail, 4-8 corresponding parts for themselves in these the same reference numerals are used as in the Fig. 1-3.
  • each gripper 1 with one Fastening element 27 In the conveyor device shown in FIGS. 4 and 5 are the bearing parts 5 of each gripper 1 with one Fastening element 27 connected, the bearing parts 5 with the associated fastener 27 preferably are integrally formed.
  • the fasteners 27 are only schematic at regular intervals on one shown means of transport 28 attached to the not shown way in the direction of arrow F (Fig. 5) is driven.
  • This funding is in one Guide channel 29 guided, for example by means of wheels 30.
  • the funding 28 can, for example, a traction element, especially be a chain. Besides that, it can Transport means 28 by individual in the guide channel 29 guided wagons are formed either with each other are connected or separated from each other and by Thrusts mutually in the conveying direction F drive.
  • the product formation S to be funded is used for shown embodiment by overlapping Products E formed, e.g. single or multi-leaf Printed matter can be.
  • the conveyor shown also others to promote flexible or rigid objects.
  • the Product formation S which in the present case is a Scale formation is in the area of the takeover by the conveyor on a support 31. As soon as the brackets 1 capture the product formation S. such an edition 31 is no longer required.
  • the grippers 1 shows the product formation S in an area 32 which corresponds to the connects a side edge E 'of the products E, i.e. so sideways. It can be seen from FIG. 4 that the grippers 1 at least in the takeover area are guided that in the closed position the clamp leg 2, 3 whose center plane M with the center plane G of the Product formation S roughly coincides. this will on the one hand by guiding the means of transport 28 in the guide 29 and on the other hand by arranging the Bearing axes 4 reached parallel to the conveying direction F.
  • the level is indicated by 33, which in Open position of the clamp legs 2 ', 3' by their free ends is set.
  • This level 33 lies outside the conveyor track of product formation S, what that lateral merging of the product formation S and the Conveyor for the purpose of capturing the product formation S facilitated.
  • the clamp legs 2 ', 3' around it can be opened at a large angle possible, when taking over the product formation S the Conveyor very close to the side edge E 'of Bring product formation S. For this takeover the product formation S does not have to be laterally relative to the Brackets 1 are moved.
  • the embodiment shown in Figs. 7 and 8 differs from that according to FIGS. 4 and 5 by a different design of the fastening element 34, by means of a gripper 1 on the transport means 28 is attached.
  • This fastener 34 is with the Bearing part 5 for the bearing axis 4 formed in one piece and has two projecting arms 36, 37 (Fig. 8).
  • the two arms 36, 37 extend laterally of the end parts 6, 7 of the clamp legs 2, 3 and each have one Guide surface 38 and 39 for the actuator 12 on.
  • the actuating device 12 is thus laterally through these guide surfaces 38, 39, which in Direction of displacement A of the actuating device 12 run, led. In other words, it is Actuating device 12 with one closing element 17 on these guide surfaces 38, 39.
  • the expansion element 15 are formed in two parts. In this case, then one of the two spaced apart Spreading element parts one of the two clamp legs 2, 3 assigned.
  • the one- or two-part expansion element 15 does not necessarily have to cover the entire width of the Extend bracket legs 2, 3. It is also conceivable that Spreading element 15 instead of as shown as a continuous web to be designed by two each a distance between the Bracket legs 2, 3 engaging elongated expansion parts form, the ends of which face each other at a distance lie.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

Both limbs of the clamp (2, 3), which are pivotally arranged on the axis of a bearing, are rotated from a closing position into an open position and vice versa by an actuating device (12). The actuating device (12) can be displaced from a top end position (13) to a lower end position (14). The actuating device (12) exerts a closing or clamping force on the outer side (22, 23) of the limbs of the clamp (2, 3) in said lower end position (14). When the actuating device (12) is displaced to the top end position (13), an expanding element (15) arranged between the limbs of the clamp (2, 3) comes into contact with the inner side (24, 25) of the limbs of the clamp (2, 3) and exerts an opening force on the limbs of the clamp (2, 3) so that said limbs (2, 3) are swung at a large angle (α) in their open position.

Description

Die vorliegende Erfindung betrifft eine Klammer zum Halten von flächigen Gegenständen, insbesondere von flexiblen Gegenständen wie ein- und mehrblättriger Druckereiprodukte, gemäss Oberbegriff des Anspruches 1 sowie eine Fördereinrichtung mit einer Anzahl von derartigen Klammern zum Fördern einer Produkteformation.The present invention relates to a clip for holding of flat objects, especially flexible ones Objects like single and multi-leaf Printed products, according to the preamble of claim 1 and a conveyor with a number of such brackets to promote a product formation.

Eine bekannte Klammer dieser Art, wie sie in der EP-A-0 767 125 offenbart ist, weist zwei Klammerschenkel auf, die drehbar auf einer Lagerachse gelagert sind. Diese Klammerschenkel werden durch eine Schliesseinrichtung, die die Klammerschenkel zwischen sich aufnimmt, in einer Schliessstellung gehalten. Beim Verschwenken oder bei einer translatorischen Bewegung der Schliesseinrichtung können die Klammerschenkel voneinander weg in ihre Offen- oder Freigabestellung verschwenken. Zur Beeinflussung der Bewegung der Klammerschenkel in die Offen- oder Freigabestellung ist eine zwischen den Klammerschenkeln angeordnete Druckfeder vorhanden, die auf die Klammerschenkel eine Spreizkraft ausübt und so die Klammerschenkel in einer gegebenen Offenstellung hält. Bedingt durch die Konstruktion dieser vorbekannten Klammer können sich aber die Klammerschenkel nur um einen verhältnismässig kleinen Winkel öffnen.A known clip of this type, as described in EP-A-0 767 125 is disclosed has two clamp legs, which are rotatably mounted on a bearing axis. This Bracket legs are closed by a locking device that the brace between them, in one Closed position. When swiveling or at a translational movement of the locking device the clamp legs can move away from each other into their or swivel release position. To influence the Movement of the staple legs in the open or Release position is one between the clamp legs arranged compression spring available on the Clamp leg exerts a spreading force and so the Clamp leg holds in a given open position. Due to the construction of this known bracket but the brackets can only be one open relatively small angle.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Klammer der eingangs genannten Art zu schaffen, bei der bei einfachem mechanischem Aufbau die Klammerschenkel sicher und präzise zwischen der Schliess- und der Offenstellung hin und her bewegt und dabei um einen gegenüber einer Klammer gemäss dem Stand der Technik erheblich grösseren Winkel verschwenkt werden können.The present invention is based on the object to create a bracket of the type mentioned at the clamp legs with a simple mechanical construction safe and precise between the closing and the Open position moved back and forth while doing one compared to a clip according to the prior art significantly larger angle can be pivoted.

Gelöst wird diese Aufgabe mit einer Klammer gemäss Anspruch 1.This task is solved with a bracket according to Claim 1.

Die in einer Endstellung die Klammerschenkel in deren Schliessstellung gegeneinander drückende Betätigungseinrichtung bewirkt bei ihrer Bewegung in ihre andere Endstellung mittels des Spreizelementes ein gesteuertes Verschwenken des bzw. der Klammerschenkel in die Offenstellung. Somit wird die Bewegung der Klammerschenkel von der Schliessstellung in die Offenstellung und auch umgekehrt durch die Betätigungseinrichtung allein aktiv gesteuert, ohne dass hiefür zusätzliche Elemente erforderlich sind. Die Möglichkeit, die Klammerschenkel in zwei einander entgegengesetzten Richtungen aktiv zu bewegen erlaubt es, die beiden Klammerschenkel zu einem bestimmten Zeitpunkt zu einer kontrollierten, präzisen Schliess- oder Oeffnungsbewegung zu veranlassen, insbesondere um einen Gegenstand bei gleichzeitiger Bewegung der Klammern ortsgenau freizugeben. Da sich die Klammerschenkel in Schliessstellung benachbart zur Lagerachse überkreuzen können die Klammerschenkel beim Oeffnen um einen sehr grossen Winkel verschwenkt werden.In one end position, the clamp legs in their Closing position pressing against each other Actuator causes movement in their another end position by means of the expansion element controlled pivoting of the staple leg (s) in the open position. Thus the movement of the Brace legs from the closed position to the Open position and vice versa through the Actuator alone actively controlled without for which additional elements are required. The Possibility of bracing the legs in two each other actively moving in opposite directions allows the two clamp legs at a certain time to a controlled, precise closing or To initiate opening movement, in particular by one Object while moving the clamps to release exactly. Since the clamp legs are in Cross the closed position adjacent to the bearing axis can open the clamp legs by a lot large angle can be pivoted.

Da bei der erfindungsgemässen Klammer eine Oeffnungs- und Schliessbewegung durch eine einzige translatorisch bewegte Betätigungseinrichtung erzeugt werden kann, an deren bauliche Ausgestaltung nur geringe Anforderungen gestellt sind, ist es möglich, die Klammer auf einfache und kostengünstige Weise besonders platz-, material- und gewichtssparend auszubilden.Since an opening and Closing movement by a single translational movement Actuator can be generated at the structural design made only minor demands are, it is possible to put the bracket on simple and cost-effective way especially space, material and training to save weight.

Bevorzugte Weiterausgestaltungen der erfindungsgemässen Klammer sind in den abhängigen Ansprüchen 2-6 umschrieben.Preferred further developments of the inventive Brackets are defined in dependent claims 2-6.

Eine mit erfindungsgemässen Klammern ausgerüstete Fördereinrichtung bildet Gegenstand des Anspruches 7. Besondere Weiterbildungen dieser Fördereinrichtung sind in den abhängigen Ansprüchen 8-13 definiert.One equipped with clips according to the invention Conveyor forms the subject of claim 7. Special developments of this funding facility are in dependent claims 8-13.

Im folgenden werden anhand der Zeichnungen Ausführungsbeispiele einer erfindungsgemässen Klammer sowie von erfindungsgemässen Fördereinrichtungen näher beschrieben. Es zeigt rein schematisch:

Fig. 1
in Seitenansicht eine Klammer zum Halten von flächigen Gegenständen,
Fig. 2
eine Ansicht in Richtung des in Fig. 1 eingezeichneten Pfeiles II,
Fig. 3
in einem gegenüber den Fig. 1 und 2 vergrösserten Massstab in Seitenansicht und teilweise im Schnitt den obern Bereich der in den Fig. 1 und 2 gezeigten Klammer,
Fig. 4
in Seitenansicht und teilweise im Schnitt eine mit Klammern gemäss den Fig. 1-3 ausgerüstete Fördereinrichtung,
Fig. 5
die Fördereinrichtung gemäss Fig. 4 in Draufsicht,
Fig. 6
in einer der Fig. 4 entsprechenden Darstellung eine zweite Ausführungsform einer Fördereinrichtung mit Klammern gemäss den Fig. 1-3,
Fig. 7
in Seitenansicht und teilweise im Schnitt, und
Fig. 8
in Draufsicht eine dritte Ausführungsform einer Fördereinrichtung mit Klammern gemäss den Fig. 1-3.
Exemplary embodiments of a clip according to the invention and of conveyor devices according to the invention are described in more detail below with reference to the drawings. It shows purely schematically:
Fig. 1
in side view a clamp for holding flat objects,
Fig. 2
2 shows a view in the direction of arrow II shown in FIG. 1,
Fig. 3
on an enlarged scale compared to FIGS. 1 and 2 in side view and partly in section the upper region of the clip shown in FIGS. 1 and 2,
Fig. 4
in side view and partly in section, a conveyor equipped with clamps according to FIGS. 1-3,
Fig. 5
4 in top view,
Fig. 6
in a representation corresponding to FIG. 4, a second embodiment of a conveyor device with clamps according to FIGS. 1-3,
Fig. 7
in side view and partly in section, and
Fig. 8
In plan view, a third embodiment of a conveyor device with clamps according to FIGS. 1-3.

Vorerst wird anhand der Fig. 1-3 der Aufbau einer erfindungsgemäss ausgebildeten Klammer 1 beschrieben.For now, the structure of a Clamp 1 designed according to the invention.

Diese Klammer 1 weist zwei gleich lange Klammerschenkel 2, 3 auf, die einzeln drehbar auf einer Lagerachse 4 schwenkbar gelagert sind. Die Schwenkachse der beiden Klammerschenkel 2, 3 ist in Fig. 2 mit 4a bezeichnet. Die Lagerachse 4 ist in einem Lagerteil 5 gelagert. Zur Lagerung der Klammerschenkel 2, 3 sind an deren Endteilen 6 bzw. 7 Laschen 8 bzw. 9 (Fig. 2) ausgebildet, die die Lagerachse 4 umgreifen und in deren Längsrichtung sich abwechselnd angeordnet sind. Wie die Fig. 1-3 zeigen überkreuzen sich die beiden Endteile 6, 7 der Klammerschenkel 2, 3, d.h. die Laschen 8 des Endteiles 6 durchsetzen den Endteil 7 des andern Klammerschenkels 3 und umgekehrt. Durch diese Ausgestaltung und Anordnung der Endteile 6, 7 der Klammerschenkel 2, 3 ist es möglich, die beiden Klammerschenkel 2, 3 um einen sehr grossen Winkel voneinander weg zu schwenken, wie das noch näher beschrieben werden wird. Im unteren, an die Endteile 6, 7 anschliessenden Bereich können die Klammerschenkel 2, 3 mit einer Oeffnung 10 (Fig. 2) versehen sein, durch deren Form und Grösse das Elastizitätsverhalten der Klammerschenkel 2, 3 mitbestimmt wird.This clip 1 has two clip legs 2 of equal length, 3, which can be rotated individually on a bearing axis 4 are pivotally mounted. The swivel axis of the two Bracket legs 2, 3 are designated in Fig. 2 with 4a. The Bearing axis 4 is mounted in a bearing part 5. to Storage of the clamp legs 2, 3 are at their end parts 6 or 7 tabs 8 and 9 (Fig. 2) formed the Grip bearing axis 4 and in the longitudinal direction itself are arranged alternately. As shown in Figs. 1-3 the two end parts 6, 7 cross each other Bracket legs 2, 3, i.e. the tabs 8 of the end part 6 enforce the end part 7 of the other clamp leg 3 and vice versa. Through this design and arrangement of End parts 6, 7 of the clamp legs 2, 3, it is possible to two clamp legs 2, 3 through a very large angle to pivot away from each other, like that even closer will be described. In the lower, to the end parts 6, 7 adjoining area, the clamp legs 2, 3 be provided with an opening 10 (Fig. 2), through the Shape and size of the elasticity behavior of the Bracket legs 2, 3 is also determined.

Mittels einer Betätigungseinrichtung 12 können die beiden Klammerschenkel 2, 3 zwischen einer Schliessstellung und einer Offen- oder Freigabestellung hin und her verschwenkt werden. In den Fig. 1 und 3 sind die sich in der Schliessstellung befindlichen Klammerschenkel 2, 3 mit ausgezogenen Linien dargestellt. Demgegenüber sind die sich in der Offenstellung befindlichen Klammerschenkel 2, 3 in diesen Figuren strichpunktiert angedeutet und mit 2' bzw. 3' bezeichnet. Wie aus der Fig. 1 hervorgeht, sind in der Schliessstellung die beiden Klammerschenkel 2, 3 bezüglich einer Mittelebene M symmetrisch. Die elastischen Klammerschenkel 2, 3 sind derart vorgespannt, dass sie in der Schliessstellung mit ihren freien Enden auf den erfassten, in den Fig. 1-3 nicht gezeigten Gegenstand eine Klemmkraft ausüben. Dies ist in der Fig. 1 durch die gestrichelt dargestellten Klammerschenkelenden angedeutet, die sich in der Schliessstellung überkreuzen würden, ständen sie nicht miteinander in Berührung.By means of an actuator 12, the two Bracket legs 2, 3 between a closed position and an open or release position pivoted back and forth become. 1 and 3 are in the Closing leg 2, 3 with solid lines are shown. In contrast, they are clamp legs 2 in the open position, 3 indicated by dash-dotted lines in these figures and with 2 ' or 3 '. As is apparent from Fig. 1, are in in the closed position, the two clamp legs 2, 3 symmetrical with respect to a central plane M. The elastic Bracket legs 2, 3 are biased such that they are in the closed position with its free ends on the an object not shown in FIGS. 1-3 Apply clamping force. This is in Fig. 1 by the indicated by dashed lines, that would cross in the closed position they would not be in contact with each other.

Die Betätigungseinrichtung 12 ist zwischen einer ersten Endstellung 13 und einer zweiten Endstellung 14 translatorisch in Richtung des Pfeiles A hin und her verschiebbar. Die Verschieberichtung A verläuft dabei rechtwinklig zur Schwenkachse 4a der Klammerschenkel 2, 3. Die Einrichtungen, z.B. Steuerkurven, zum translatorischen Verschieben der Betätigungseinrichtung 12 sind in den Fig. 1-3 nicht gezeigt. Jedoch sind in Fig. 2 mit den Pfeilen C bzw. D die Verschiebekräfte angedeutet, die auf die Betätigungseinrichtung 12 einwirken, um letztere von der ersten Endstellung 13 in die zweite Endstellung 14 und umgekehrt zu bewegen. Aus dieser Darstellung wird es deutlich, dass die Verschiebekräfte C, D auf zwei sich bezüglich der Klammerschenkel 2, 3 gegenüberliegenden Seiten angreifen, wodurch vermieden wird, dass beim Verschieben der Betätigungseinrichtung 12 auf die Klammer 1 Drehmomente ausgeübt werden. Die Stelle, an der sich die Endteile 6, 7 der Klammerschenkel 2, 3 in Schliessstellung überkreuzen, liegt zwischen den beiden Endstellungen 13, 14 der Betätigungseinrichtung 12.The actuator 12 is between a first End position 13 and a second end position 14 translationally back and forth in the direction of arrow A. displaceable. The direction of displacement A runs perpendicular to the pivot axis 4a of the clamp legs 2, 3. The facilities, e.g. Control curves, for translational Moving the actuator 12 are shown in Figs. 1-3 not shown. However, the arrows C in FIG or D the displacement forces indicated on the Actuate actuator 12 to the latter from the first end position 13 in the second end position 14 and to move the other way around. From this representation it becomes clearly that the displacement forces C, D on two with respect to the clamp legs 2, 3 opposite Attack sides, thereby avoiding that when Moving the actuator 12 on the bracket 1 torques can be exerted. The place where the End parts 6, 7 of the clamp legs 2, 3 in the closed position cross, lies between the two end positions 13, 14 of the actuating device 12.

Die Betätigungseinrichtung 12 weist ein zwischen den Klammerschenkeln 2, 3 angeordnetes Spreizelement 15 sowie zwei Schliesselemente 16, 17 auf, die auf den Aussenseiten der Klammerschenkel 2, 3 verlaufen. Das Spreizelement 15 ist mit den Schliesselementen 16, 17 fest verbunden. Somit erstrecken sich die Klammerschenkel 2, 3 zwischen dem Spreizelement 15 und jeweils einem der Schliesselemente 16, 17 hindurch.The actuator 12 has a between Bracket legs 2, 3 arranged expansion element 15 and two closing elements 16, 17 on the outside the staple legs 2, 3 run. The expansion element 15 is firmly connected to the closing elements 16, 17. Consequently extend the clamp legs 2, 3 between the Spreading element 15 and one of the closing elements 16, 17 through.

Um die Betätigungseinrichtung 12 in ihrer zweiten Endlage 14 gegen Verschiebung zu sichern weisen die beiden Klammerschenkel 2, 3 je eine Abkröpfung 18 bzw. 19 auf (Fig. 3). Durch jede dieser Abkröpfungen 18, 19 wird eine Rastfläche 20 bzw. 21 gebildet, die an der aussenliegenden Seite 22 bzw. 23 der Klammerschenkel 2 bzw. 3 liegt.To the actuator 12 in its second end position 14 to secure against displacement, the two point Bracket legs 2, 3 each have an offset 18 or 19 (Fig. 3). Through each of these offsets 18, 19 one Rest area 20 and 21 formed on the outside Page 22 or 23 of the staple legs 2 or 3.

Befindet sich die Betätigungseinrichtung 12 in der zweiten Endlage 14, nehmen die Klammerschenkel 2, 3 ihre Schliessstellung ein, in der sie wie erwähnt auf den erfassten Gegenstand eine Klemmwirkung ausüben. Dabei bringen die Schliesselemente 16, 17 auf die äussere Seite 22 bzw. 23 des zugeordneten Klammerschenkels 2, 3 eine Klemmkraft K1 bzw. K2 auf (Fig. 3). In dieser zweiten Endstellung 14 ist die Betätigungseinrichtung 12 durch die Rastflächen 20, 21 in ihrer Lage gesichert.The actuating device 12 is in the second End position 14, the clamp legs 2, 3 take their Closed position, in which, as mentioned, on the exert a clamping effect. there bring the locking elements 16, 17 to the outer side 22 or 23 of the associated clamp leg 2, 3 a Clamping force K1 or K2 on (Fig. 3). In this second End position 14 is the actuator 12 through the Locking surfaces 20, 21 secured in their position.

Wird nun die Betätigungseinrichtung 12 in Richtung des Pfeiles A in die erste Endlage 13 verschoben, in der sie strichpunktiert dargestellt und mit 12' bezeichent ist, so kommt das Spreizelement 15 zur Einwirkung auf die innere Seite 24 bzw. 25 der Klammerschenkel 2, 3 und übt dabei auf letztere eine Oeffnungskraft P1 bzw. P2 (Fig. 3) aus. Das hat zur Folge, dass die Klammerschenkel 2, 3 aus ihrer Schliessstellung je um den Winkel α (Fig. 1) sicher und zwangsweise in die Offenstellung 2', 3' verschwenkt werden. Ein grosser Schwenkwinkel α ist möglich, weil die Klammerschenkel 2, 3 jeder einzeln drehbar gelagert ist und sich die Endteile 6, 7 der Klammerschenkel 2, 3 wie erwähnt bei geschlossener Klammer 1 überkreuzen. Weil in Verschieberichtung A gesehen die Schliesselemente 16, 17 bezüglich des Spreizelementes 15 in Richtung zur Lagerachse 4 hin versetzt sind, behindern diese Schliesselemente 16, 17 das Aufspreizen der Klammerschenkel 2, 3 nicht.Now the actuator 12 in the direction of Arrow A moved to the first end position 13 in which it is shown in dash-dotted lines and labeled 12 ', so comes the expansion element 15 to act on the inner Page 24 or 25 of the staple legs 2, 3 and exercise on the latter an opening force P1 or P2 (FIG. 3). As a result, the staple legs 2, 3 from their Closed position each by the angle α (Fig. 1) safely and forcibly pivoted into the open position 2 ', 3' become. A large swivel angle α is possible because the Bracket legs 2, 3 are each individually rotatably mounted and the end parts 6, 7 of the clamp legs 2, 3 like mentioned cross with closed bracket 1. Because in Movement direction A seen the closing elements 16, 17th with respect to the expansion element 15 in the direction of Bearing axis 4 are offset, hinder this Closing elements 16, 17 spread the Bracket legs 2, 3 not.

Weil sich die Klammerschenkel 2, 3 um einen grossen Winkel α verschwenken lassen, eignen sich Klammern der anhand der Fig. 1-3 beschriebenen Art besonders für den Einsatz in Fördereinrichtungen, die zum Transportieren von Formationen von flächigen Gegenständen diese Formationen im Bereich eines (oder allenfalls beider) Seitenränder erfassen. Anhand der Fig. 4-8 werden nun verschiedene Varianten solcher Fördereinrichtungen näher erläutert, wobei in diesen Fig. 4-8 für sich entsprechende Teile dieselben Bezugszeichen verwendet werden wie in den Fig. 1-3.Because the clamp legs 2, 3 are at a large angle α can be swiveled, brackets are suitable using the Fig. 1-3 described type especially for use in Conveyors used to transport Formations of flat objects form these formations in the area of one (or possibly both) side margins to capture. 4-8 will now be different Variants of such funding facilities explained in more detail, 4-8 corresponding parts for themselves in these the same reference numerals are used as in the Fig. 1-3.

Bei der in den Fig. 4 und 5 gezeigten Fördereinrichtung sind die Lagerteile 5 jedes Greifers 1 mit einem Befestigungselement 27 verbunden, wobei die Lagerteile 5 mit dem zugeordneten Befestigungselement 27 vorzugsweise einstückig ausgebildet sind. Die Befestigungselemente 27 sind in regelmässigen Abständen an einem nur schematisch dargestellten Transportmittel 28 befestigt, das auf nicht gezeigte Weise in Richtung des Pfeiles F (Fig. 5) angetrieben ist. Dieses Fördermittel ist in einem Führungskanal 29 geführt, beispielsweise mittels Rädern 30. Das Fördermittel 28 kann beispielsweise ein Zugorgan, insbesondere eine Kette sein. Daneben kann das Transportmittel 28 durch einzelne im Führungskanal 29 geführte Wagen gebildet werden, die entweder miteinander verbunden sind oder voneinander getrennt sind und durch Schubkräfte sich gegenseitig in Förderrichtung F antreiben. Die zu fördernde Produkteformation S wird beim gezeigten Ausführungsbeispiel durch sich überlappende Erzeugnisse E gebildet, die z.B. ein- oder mehrblättrige Druckereierzeugnisse sein können. Es ist jedoch auch möglich, mit der gezeigten Fördereinrichtung auch andere flexible oder biegesteife Gegenstände zu fördern. Die Produkteformation S, die im vorliegenden Fall eine Schuppenformation ist, liegt im Bereich der Uebernahme durch die Fördereinrichtung auf einer Auflage 31 auf. Sobald die Klammern 1 die Produkteformation S erfasst haben, ist eine solche Auflage 31 nicht mehr erforderlich.In the conveyor device shown in FIGS. 4 and 5 are the bearing parts 5 of each gripper 1 with one Fastening element 27 connected, the bearing parts 5 with the associated fastener 27 preferably are integrally formed. The fasteners 27 are only schematic at regular intervals on one shown means of transport 28 attached to the not shown way in the direction of arrow F (Fig. 5) is driven. This funding is in one Guide channel 29 guided, for example by means of wheels 30. The funding 28 can, for example, a traction element, especially be a chain. Besides that, it can Transport means 28 by individual in the guide channel 29 guided wagons are formed either with each other are connected or separated from each other and by Thrusts mutually in the conveying direction F drive. The product formation S to be funded is used for shown embodiment by overlapping Products E formed, e.g. single or multi-leaf Printed matter can be. However, it is also possible with the conveyor shown also others to promote flexible or rigid objects. The Product formation S, which in the present case is a Scale formation is in the area of the takeover by the conveyor on a support 31. As soon as the brackets 1 capture the product formation S. such an edition 31 is no longer required.

Wie die Fig. 4 und 5 deutlich zeigen, erfassen die Greifer 1 die Produkteformation S in einem Bereich 32, der an den einen Seitenrand E' der Erzeugnisse E anschliesst, d.h. also seitlich. Anhand der Fig. 4 lässt sich erkennen, dass die Greifer 1 zumindest im Uebernahmebereich derart geführt sind, dass in Schliessstellung der Klammerschenkel 2, 3 deren Mittelebene M mit der Mittelebene G der Produkteformation S in etwa zusammenfällt. Dies wird einerseits durch die Führung des Transportmittels 28 in der Führung 29 und andererseits durch das Anordnen der Lagerachsen 4 parallel zur Förderrichtung F erreicht.4 and 5 clearly show the grippers 1 shows the product formation S in an area 32 which corresponds to the connects a side edge E 'of the products E, i.e. so sideways. It can be seen from FIG. 4 that the grippers 1 at least in the takeover area are guided that in the closed position the clamp leg 2, 3 whose center plane M with the center plane G of the Product formation S roughly coincides. this will on the one hand by guiding the means of transport 28 in the guide 29 and on the other hand by arranging the Bearing axes 4 reached parallel to the conveying direction F.

In der Fig. 4 ist mit 33 die Ebene angedeutet, die in Offenstellung der Klammerschenkel 2', 3' durch deren freien Enden festgelegt ist. Diese Ebene 33 liegt ausserhalb der Förderbahn der Produkteformation S, was das seitliche Zusammenführen der Produkteformation S und der Fördereinrichtung zwecks Erfassen der Produkteformation S erleichtert. Da wie erwähnt die Klammerschenkel 2', 3' um einen grossen Winkel geöffnet werden können, ist es möglich, bei der Uebernahme der Produkteformation S die Fördereinrichtung sehr nahe an die Seitenkante E' der Produkteformation S heranzuführen. Für diese Uebernahme muss die Produkteformation S nicht seitlich relativ zu den Klammern 1 bewegt werden.4, the level is indicated by 33, which in Open position of the clamp legs 2 ', 3' by their free ends is set. This level 33 lies outside the conveyor track of product formation S, what that lateral merging of the product formation S and the Conveyor for the purpose of capturing the product formation S facilitated. As mentioned, the clamp legs 2 ', 3' around it can be opened at a large angle possible, when taking over the product formation S the Conveyor very close to the side edge E 'of Bring product formation S. For this takeover the product formation S does not have to be laterally relative to the Brackets 1 are moved.

Bei der in der Fig. 6 gezeigten Variante werden die Klammern 1 mit dem einen Klammerschenkel 2 direkt am Fördermittel 28 befestigt. Dies bedeutet, dass beim Verschieben der Betätigungseinrichtung 12 zwischen den beiden Endstellungen 13, 14 nur der andere Klammerschenkel 3 um den Winkel α verschwenkt wird.In the variant shown in FIG. 6, the Brackets 1 with a bracket leg 2 directly on Funding 28 attached. This means that when Moving the actuator 12 between the both end positions 13, 14 only the other leg of the bracket 3 is pivoted by the angle α.

Die in den Fig. 7 und 8 gezeigte Ausführungsform unterscheidet sich von derjenigen gemäss den Fig. 4 und 5 durch eine andere Ausbildung des Befestigungselementes 34, mittels dem jeweils ein Greifer 1 am Transportmittel 28 befestigt ist. Dieses Befestigungselement 34 ist mit dem Lagerteil 5 für die Lagerachse 4 einstückig ausgebildet und weist zwei wegragende Arme 36, 37 (Fig. 8) auf. Die beiden Arme 36, 37 erstrecken sich seitlich der Endteile 6, 7 der Klammerschenkel 2, 3 und weisen je eine Führungsfläche 38 bzw. 39 für die Betätigungseinrichtung 12 auf. Die Betätigungseinrichtung 12 wird somit seitlich durch diese Führungsflächen 38, 39, die in Verschieberichtung A der Betätigungseinrichtung 12 verlaufen, geführt. Anders ausgedrückt liegt die Betätigungseinrichtung 12 mit dem einen Schliesselement 17 auf diesen Führungsflächen 38, 39 auf. Das hat nun zur Folge, dass die Klammern 1 in Schliessstellung, d.h. bei sich in der ersten Endstellung 13 befindlicher Betätigungseinrichtung 12, in einer stabilen Lage gehalten werden. Dies bedeutet, dass die Klammern 1 auch dann nicht um die Schwenkachse 4a abdrehen können, wenn die Produkteformation S nicht mehr auf der Auflage 31 aufliegt. Somit fallen die Mittelebene G der Produkteformation S und die Mittelebene M der geschlossenen Klammern 1 während des ganzen Transportes zusammen. Dies ermöglicht eine einfache Führung der Produkteformation S im Raum, ohne dass aufwendige Führungsmittel erforderlich wären.The embodiment shown in Figs. 7 and 8 differs from that according to FIGS. 4 and 5 by a different design of the fastening element 34, by means of a gripper 1 on the transport means 28 is attached. This fastener 34 is with the Bearing part 5 for the bearing axis 4 formed in one piece and has two projecting arms 36, 37 (Fig. 8). The two arms 36, 37 extend laterally of the end parts 6, 7 of the clamp legs 2, 3 and each have one Guide surface 38 and 39 for the actuator 12 on. The actuating device 12 is thus laterally through these guide surfaces 38, 39, which in Direction of displacement A of the actuating device 12 run, led. In other words, it is Actuating device 12 with one closing element 17 on these guide surfaces 38, 39. That has now Consequence that the clamps 1 in the closed position, i.e. at located in the first end position 13 Actuator 12, held in a stable position become. This means that the brackets 1 are not even then can turn around the pivot axis 4a if the Product formation S no longer on edition 31 rests. Thus, the central plane G falls Product formation S and the central plane M of the closed brackets 1 during the entire transport together. This enables easy management of the Product formation S in the room without being complex Management means would be required.

Statt wie gezeigt ein einziges Spreizelement 15, das auf beide Klammerschenkel 2, 3 wirkt, kann das Spreizelement 15 zweiteilig ausgebildet werden. In diesem Fall ist dann jeweils einer der beiden voneinander beabstandeten Spreizelementteile einem der beiden Klammerschenkel 2, 3 zugeordnet. Das ein- oder zweiteilige Spreizelement 15 muss sich nicht zwingend über die ganze Breite der Klammerschenkel 2, 3 erstrecken. Es ist auch denkbar, das Spreizelement 15 statt wie gezeigt als durchgehenden Steg auszugestalten durch zwei je um eine Strecke zwischen die Klammerschenkel 2, 3 eingreifende längliche Spreizteile zu bilden, deren Enden sich in einem Abstand gegenüber liegen.Instead of a single expansion element 15, as shown, that on both clamp legs 2, 3 acts, the expansion element 15 are formed in two parts. In this case, then one of the two spaced apart Spreading element parts one of the two clamp legs 2, 3 assigned. The one- or two-part expansion element 15 does not necessarily have to cover the entire width of the Extend bracket legs 2, 3. It is also conceivable that Spreading element 15 instead of as shown as a continuous web to be designed by two each a distance between the Bracket legs 2, 3 engaging elongated expansion parts form, the ends of which face each other at a distance lie.

Claims (13)

  1. Clamp for retaining sheet-like articles (E), in particular flexible articles such as printed products containing one or more sheets, having two clamp legs (2, 3) which can be pivot relative to one another, are mounted individually on a common bearing spindle (4) and, in a closed position, subject the gripped article (E) to a clamping action, and having an actuating device (12) which can be moved in a translatory manner in a direction (A), which runs essentially at right angles to the bearing spindle (4), between a first end position (13), which allows the clamp legs (2, 3) to be opened, and a second end position (14), in which the clamp legs (2, 3) assume the closed position, wherein, in its second end position (14), the actuating device (12) subjects at least one clamp leg (2, 3) to a closing force (K1, K2) which presses the two clamp legs (2, 3) against one another, characterized in that the actuating device (12) has a spreading element (15) which is arranged between the two clamp legs (2, 3) and, upon movement of the actuating device (12) from the second end position (14) into the first end position (13), subjects the side (24, 25) of at least one clamp leg (2, 3), said side being directed towards the other clamp leg (2, 3), to an opening force (P1, P2) and thus pivots said at least one clamp leg (2, 3) out of the closed position into an open position, and in that, in their closed position, the clamp legs (2, 3) cross one another between the bearing spindle (4) and the second end position (14) of the actuating device (12).
  2. Clamp according to Claim 1, characterized in that, upon movement of the actuating device (12) from the second end position (14) into the first end position (13), the spreading element (15) subjects the two clamp legs (2, 3) to an opening force (P1, P2) and pivots the two clamp legs (2, 3) into the open position about an angle (α).
  3. Clamp according to Claim 1 or 2, characterized in that the actuating device (12) has two closing elements (16; 17), of which each runs on the outer side (22, 23) of one of the clamp legs (2, 3), acts on the associated clamp leg (2, 3) upon displacement of the actuating device (12) towards the second end position (14), and pivots said clamp leg towards the closed position and, with the actuating device (12) located in the second end position (14), subjects the associated clamp leg (2, 3) to a closing force (K1, K2).
  4. Clamp according to Claim 3, characterized in that the closing elements (16, 17) are offset in the direction of the bearing spindle (4) in relation to the spreading element (15).
  5. Clamp according to Claim 3 or 4, characterized in that, on its outer side (22, 23), each clamp leg (2, 3) has a latching surface (20, 21) with which the actuating device (12) interacts, preferably by way of the closing elements (16, 17), in the second end position (14).
  6. Clamp according to one of Claims 1-5, characterized in that the end part (6, 7) of each clamp leg (2, 3), said end part being adjacent to the bearing spindle (4), is divided up into spaced-apart segments (8, 9) which are mounted on the bearing spindle (4) such that the segments (8) of one clamp leg (2) alternate with the segments (9) of the other clamp leg (3) in the direction of said bearing spindle (4).
  7. Conveying apparatus which is intended for conveying a product formation (S) formed from sheet-like articles (E), in particular printed products, and has a number of clamps (1) which are arranged one behind the other in the conveying direction (F), are designed in accordance with one or more of Claims 1-6 and are connected to a transporting means (28) such that the bearing spindles (4) of the clamps (1) run essentially parallel to the conveying direction (F) and the clamps (1) are intended for acting on the region (32) of one side edge (E') of the product formation (S) which is to be conveyed.
  8. Conveying apparatus according to Claim 7, characterized in that the bearing spindles (4) of the clamps (1) are mounted in a bearing part (5) which is connected to a fastening element (27, 34) which is fastened on the transporting means (28).
  9. Conveying apparatus according to Claim 7 or 8, characterized in that the actuating devices (12) of the clamps (1) are guided by means of guides (36-39) which run in the movement direction (A) of the actuating devices (12).
  10. Conveying apparatus according to Claims 8 and 9, characterized in that each guide is formed by two guide surfaces (38, 39) which extend on opposite sides of the clamp legs (2, 3) in the movement direction (A) of the actuating device (12).
  11. Conveying apparatus according to Claim 9 or 10, characterized in that, in the closed position of the clamp legs (2, 3), the clamps (1) are retained, by means of the guides (36-39), in a position in which a clamp centre plane (M) which contains the bearing spindle (4) coincides with the centre plane (G) of the transported product formation (S).
  12. Conveying apparatus according to Claim 7, characterized in that the clamps (1) are fastened on the transporting means (28) by way of one of their clamp legs (2, 3).
  13. Conveying apparatus according to one of Claims 7-12 for conveying an imbricated formation (S) formed from overlapping sheet-like products (E).
EP98942447A 1997-12-17 1998-09-21 Clamp for holding flat objects Expired - Lifetime EP1040065B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH290197 1997-12-17
CH290197 1997-12-17
PCT/CH1998/000406 WO1999030997A1 (en) 1997-12-17 1998-09-21 Clamp for holding flat objects

Publications (2)

Publication Number Publication Date
EP1040065A1 EP1040065A1 (en) 2000-10-04
EP1040065B1 true EP1040065B1 (en) 2002-05-22

Family

ID=4244165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98942447A Expired - Lifetime EP1040065B1 (en) 1997-12-17 1998-09-21 Clamp for holding flat objects

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US (1) US6290227B1 (en)
EP (1) EP1040065B1 (en)
AU (1) AU9060098A (en)
CA (1) CA2308501C (en)
DE (1) DE59804210D1 (en)
DK (1) DK1040065T3 (en)
WO (1) WO1999030997A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030159956A1 (en) * 2002-02-26 2003-08-28 Woos Michael T. Display backing card
SG121961A1 (en) * 2004-10-19 2006-05-26 Jettech Ltd Feeder belt for strip-shaped parts
US8245377B2 (en) 2005-06-22 2012-08-21 Automated Solutions Device for securing trim to a seat
US9638224B1 (en) 2015-09-28 2017-05-02 II Donald Bruce Westfall Weight-actuated panel holder and holder assembly including the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523560A1 (en) * 1982-03-19 1983-09-23 Sapivog PREHENSEUR FOR TEXTILE TABLECLOTH OR SIMILAR
US4534843A (en) * 1983-01-28 1985-08-13 Technic, Inc. Apparatus for electroplating and chemically treating contact elements of encapsulated electronic components and their like
FR2547801B2 (en) * 1983-06-24 1986-01-03 Vosgienne Applications Ind INSTALLATION FOR GRIPPING, TRANSFERRING AND TURNING A TEXTILE TABLECLOTH
CH670619A5 (en) * 1986-04-29 1989-06-30 Sft Ag Spontanfoerdertechnik
US4721296A (en) * 1986-05-27 1988-01-26 Harris Graphics Corporation Sheet material handling apparatus
SE468765B (en) * 1991-05-24 1993-03-15 Wamag Idab Ab SIDOGRIC TRANSPORT
CA2187000C (en) 1995-10-03 2005-05-03 Walter Reist Clamp for sheet-like articles
DE59603772D1 (en) * 1995-10-03 2000-01-05 Ferag Ag Clamp for flat objects

Also Published As

Publication number Publication date
WO1999030997A1 (en) 1999-06-24
CA2308501C (en) 2007-01-02
DK1040065T3 (en) 2002-07-08
US6290227B1 (en) 2001-09-18
AU9060098A (en) 1999-07-05
CA2308501A1 (en) 1999-06-24
EP1040065A1 (en) 2000-10-04
DE59804210D1 (en) 2002-06-27

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