EP0453843B1 - Device to control the grippers for rotary sheet printing machines - Google Patents

Device to control the grippers for rotary sheet printing machines Download PDF

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Publication number
EP0453843B1
EP0453843B1 EP91105473A EP91105473A EP0453843B1 EP 0453843 B1 EP0453843 B1 EP 0453843B1 EP 91105473 A EP91105473 A EP 91105473A EP 91105473 A EP91105473 A EP 91105473A EP 0453843 B1 EP0453843 B1 EP 0453843B1
Authority
EP
European Patent Office
Prior art keywords
cam
grippers
bearing pin
gripper
control
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
EP91105473A
Other languages
German (de)
French (fr)
Other versions
EP0453843A2 (en
EP0453843A3 (en
Inventor
Christoph Stanco
Heinrich Ochs
Kurt Difflipp
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0453843A2 publication Critical patent/EP0453843A2/en
Publication of EP0453843A3 publication Critical patent/EP0453843A3/en
Application granted granted Critical
Publication of EP0453843B1 publication Critical patent/EP0453843B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers

Definitions

  • the invention relates to a device for controlling grippers in sheet-fed rotary printing machines according to the preamble of the first claim.
  • the disadvantage is that the cam rollers are not exactly 180 degrees apart ⁇ due to manufacturing and assembly errors in a sheet-guiding cylinder with two rows of grippers on the circumference, but this is absolutely necessary for half-revolving cylinders, i.e. those with two rows of grippers .
  • the consequence of this is that the grippers of one or both rows of grippers open too early or too late.
  • Such errors in the geometry have a disadvantageous effect on a register-based transfer of printed sheets from one printing unit to the next one.
  • the object of the invention is to develop a device of the type mentioned at the outset in such a way that the circumferential position of the cam rollers can be set exactly to one another at a 180.degree.
  • the advantage of the invention is that the register-based transfer of printed sheets from one printing unit to the next following is no longer impaired by incorrect adjustment deviating from 180 ° of the cam rollers on the circumference of the double-sized sheet-guiding cylinder is because the circumferential position of the cam rollers can be set exactly to each other at a 180 ° turn angle ⁇ (semicircle).
  • arc-guiding cylinder 1 is shown, on which diametrically opposed gripper shafts 14 are provided, on which gripper fingers 2 are mounted by means of gripper holders 18.
  • the gripper shaft 14 of the first row of grippers is rotatably mounted on the sheet-guiding cylinder 1, which is double-sized compared to the plate cylinder, not shown.
  • On the gripper shaft 14 are across the width of the arc-guiding cylinder 1, the gripper consisting of gripper holder 18 and gripper finger 2 by means of gripper spring 19 with a non-positive connection.
  • the grippers are generally known and are not the subject of the invention.
  • the grippers are controlled by a cam drive 7, 8, 11, which consists of a fixed, e.g. consists of a piece of control cam 11, a cam roller 7 and a roller lever 8.
  • At least one cam roller 7 is provided, the center line 16 of which can be displaced relative to the axis of the gripper shaft 14 in such a way that the center distance changes.
  • Each roller lever 8 is fixed on the associated gripper shaft 14.
  • the contact of the cam rollers 7 with the control cam 11 is ensured by a compression spring 20 acting against the roller lever 8.
  • the cam mechanism 7, 8, 11 enables a direct transfer of the cam law of the control cam 11 to the gripper fingers 2 of the two gripper rows.
  • a cam roller 7 can be adjusted from its position T1 to the position T2.
  • a stepped bearing pin 5 with a coaxial section 9 is preferably accommodated in the bearing bore 6 of the roller lever 8 assigned to the cam roller 7.
  • an eccentric pin 12 is provided, on which the cam roller 7 is freely rotatably received.
  • a coaxial pin with a fine thread 13 is attached to the offset bearing pin 5, on which a locking nut 10 is provided.
  • the offset bearing pin 5 can be rotated from the outside and the set position can be secured by means of the locking nut 10 by pressing the offset bearing pin 5 on the end of the roller lever 8 by means of the locking nut 10.
  • the center line 16 of the cam roller 7 moves around the center line 15 of the bearing bore 6 by ⁇ ⁇ from T2 to T1, as a result of which the change in the center distance of the cam roller 7, i.e. the center line 16 to the fixed pivot axis of the gripper shaft 14 is effected.
  • the displacement of the cam roller 7 is not limited to the exemplary embodiment with the eccentric adjustment described, but can also be achieved by a displaceable mounting of a bearing pin 5 in the roller lever 8 and a corresponding adjustment option or, if appropriate, also by an eccentric or displaceable mounting of the roller lever 8 on the gripper shaft 14.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Labeling Devices (AREA)
  • Advancing Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

In order to make possible manual adjustment of the circumferential position of the cam rollers 7 of the roller levers 8 of two gripper rows, provided on the circumference of double-sized sheet-guiding cylinders, in relation to one another to a turnover angle DIAMETER of exactly 180 DEG , at least one cam roller 7 is provided, which with its centre line 16 can be displaced in relation to the axis of the gripper shaft 14 in such a manner that the axial spacing changes. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zur Steuerung von Greifern in Bogenrotationsdruckmaschinen nach dem Oberbegriff des ersten Patentanspruches.The invention relates to a device for controlling grippers in sheet-fed rotary printing machines according to the preamble of the first claim.

Derartige Vorrichtungen sind allgemein an Druckmaschinen aus der Praxis bekannt.Such devices are generally known in practice on printing presses.

Von Nachteil ist, daß die Kurvenrollen auf Grund von Fertigungs- und Montagefehlern bei einem bogenführenden Zylinder mit zwei Greiferreihen am Umfang nicht genau mit 180° Umschlagwinkel φ voneinander entfernt liegen, wie das aber bei halbtourigen Zylindern, also solchen mit zwei Greiferreihen, unbedingt erforderlich ist. Das hat dann zur Folge, daß die Greifer einer oder beider Greiferreihen zu früh oder zu spät öffnen. Derartige Fehler in der Geometrie wirken sich nachteilig auf eine registerhaltige Übergabe von bedruckten Bogen von einem Druckwerk zum nächstfolgenden aus.The disadvantage is that the cam rollers are not exactly 180 degrees apart φ due to manufacturing and assembly errors in a sheet-guiding cylinder with two rows of grippers on the circumference, but this is absolutely necessary for half-revolving cylinders, i.e. those with two rows of grippers . The consequence of this is that the grippers of one or both rows of grippers open too early or too late. Such errors in the geometry have a disadvantageous effect on a register-based transfer of printed sheets from one printing unit to the next one.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Gattung so weiterzubilden, daß die Umfangslage der Kurvenrollen exakt zueinander auf 180° Umschlagwinkel φ einstellbar ist.The object of the invention is to develop a device of the type mentioned at the outset in such a way that the circumferential position of the cam rollers can be set exactly to one another at a 180.degree.

Gelöst wird diese Aufgabe durch die im Kennzeichen des ersten Patentanspruches aufgeführten Merkmale. Weiterbildungen der Erfindung ergeben sich aus dem Unteranspruch.This object is achieved by the features listed in the characterizing part of the first claim. Further developments of the invention result from the subclaim.

Der Vorteil der Erfindung besteht darin, daß die registerhaltige Übergabe von bedruckten Bogen von einem Druckwerk zum nächstfolgenden nicht mehr durch fehlerhafte Justage abweichend von 180° der Kurvenrollen am Umfang des doppeltgroßen bogenführenden Zylinders beeinträchtigt wird, weil die Umfangslage der Kurvenrollen exakt auf 180° Umschlagwinkel φ (Halbkreis) zueinander einstellbar ist.The advantage of the invention is that the register-based transfer of printed sheets from one printing unit to the next following is no longer impaired by incorrect adjustment deviating from 180 ° of the cam rollers on the circumference of the double-sized sheet-guiding cylinder is because the circumferential position of the cam rollers can be set exactly to each other at a 180 ° turn angle φ (semicircle).

Ein Ausführungsbeispiel der Erfindung, bei dem Registerfehler, hervorgerufen dadurch, daß die beiden Kurvenrollen nicht genau mit 180° Umschlagwinkel φ voneinander entfernt liegen, vermieden werden, wird anschließend anhand einer Zeichnung kurz erläutert.An embodiment of the invention, in which register errors caused by the fact that the two cam rollers are not exactly spaced apart from one another by a 180.degree. Changeover angle φ, is subsequently briefly explained with reference to a drawing.

Es zeigt:

Fig. 1
die Stirnansicht auf einen bogenführenden Zylinder nach der Erfindung, ohne Greifersteuerung,
Fig. 2
die Greifersteuerung der einen Greiferreihe,
Fig. 3
einen Schnitt durch die erfindungsgemäße Kurvenrollen-Stellvorrichtung.
It shows:
Fig. 1
the front view of a sheet-guiding cylinder according to the invention, without gripper control,
Fig. 2
the gripper control of one row of grippers,
Fig. 3
a section through the cam roller adjusting device according to the invention.

In Fig. 1 ist ein bogenführender Zylinder 1 dargestellt, auf dem einander diametral gegenüberliegend Greiferwellen 14 vorgesehen sind, auf denen Greiferfinger 2 mittels Greiferhaltern 18 montiert sind.In Fig. 1, an arc-guiding cylinder 1 is shown, on which diametrically opposed gripper shafts 14 are provided, on which gripper fingers 2 are mounted by means of gripper holders 18.

Die Übergabe des Bogens vom doppeltgroßen bogenführenden Zylinder 1 an den nicht dargestellten nächstfolgenden bogenführenden Zylinder erfolgt im auf den Achsmittenverbindenden liegenden Tangentenpunkt der zwei benachbarten Zylinder 1, wobei für eine exakte Bogenübergabe erforderlich ist, daß der Bogen über eine bestimmten Drehwinkel, der sogenannten Gleichlaufstrecke, gemeinsam vom öffnenden und schließenden Greifersystem benachbarter bogenführender Zylinder 1 festgehalten wird.The transfer of the sheet from the double-sized sheet-guiding cylinder 1 to the next following sheet-guiding cylinder, not shown, takes place in the tangent point of the two adjacent cylinders 1, which is on the axis center connecting point, whereby for an exact sheet transfer it is necessary that the sheet over a certain angle of rotation, the so-called synchronous path, together is held by the opening and closing gripper system of adjacent sheet-guiding cylinders 1.

Fig. 2 zeigt die Greifersteuerung für ein Greifersystem der zwei am Umfang des bogenführenden Zylinders 1 vorgesehenen Greifersysteme. Am gegenüber dem nicht dargestellten Plattenzylinder doppeltgroßen bogenführenden Zylinder 1 ist die Greiferwelle 14 der ersten Greiferreihe drehbar gelagert. An der Greiferwelle 14 sind über die Breite des bogenführenden Zylinders 1 die aus Greiferhalter 18 und Greiferfinger 2 bestehenden Greifer mittels Greiferfeder 19 unter kraftschlüssiger Verbindung fest angeordnet. Die Greifer sind allgemein bekannt und auch nicht Gegenstand der Erfindung.2 shows the gripper control for a gripper system of the two gripper systems provided on the circumference of the sheet-guiding cylinder 1. The gripper shaft 14 of the first row of grippers is rotatably mounted on the sheet-guiding cylinder 1, which is double-sized compared to the plate cylinder, not shown. On the gripper shaft 14 are across the width of the arc-guiding cylinder 1, the gripper consisting of gripper holder 18 and gripper finger 2 by means of gripper spring 19 with a non-positive connection. The grippers are generally known and are not the subject of the invention.

Die Steuerung der Greifer erfolgt durch einen Kurventrieb 7, 8, 11, der aus einer feststehenden, z.B. aus einem Stück gefertigen Steuerkurve 11, einer Kurvenrolle 7 und einem Rollenhebel 8 besteht.The grippers are controlled by a cam drive 7, 8, 11, which consists of a fixed, e.g. consists of a piece of control cam 11, a cam roller 7 and a roller lever 8.

Zur manuellen Justage der Umfangslage der beiden Kurvenrollen 7 zueinander auf exakt 180° Umschlagwinkel φ ist mindestens eine Kurvenrolle 7 vorgesehen, deren Mittellinie 16 zur Achse der Greiferwelle 14 so verlagerbar ist, daß sich der Achsabstand ändert.For manual adjustment of the circumferential position of the two cam rollers 7 relative to one another to an exactly 180.degree. Turn angle φ, at least one cam roller 7 is provided, the center line 16 of which can be displaced relative to the axis of the gripper shaft 14 in such a way that the center distance changes.

Jeder Rollenhebel 8 ist fest auf der zugehörigen Greiferwelle 14 angeordnet.Each roller lever 8 is fixed on the associated gripper shaft 14.

Die Anlage der Kurvenrollen 7 an die Steuerkurve 11 gewährleistet eine gegen den Rollenhebel 8 wirkende Druckfeder 20. Das Kurvengetriebe 7, 8, 11 ermöglicht eine direkte Übertragung des Kurvengesetzes der Steuerkurve 11 auf die Greiferfinger 2 der beiden Greiferreihen.The contact of the cam rollers 7 with the control cam 11 is ensured by a compression spring 20 acting against the roller lever 8. The cam mechanism 7, 8, 11 enables a direct transfer of the cam law of the control cam 11 to the gripper fingers 2 of the two gripper rows.

Der Stellbereich der Umfangslage der Kurvenrollen 7 zueinander ist in Fig. 2 mit △φ angedeutet, wobei eine Kurvenrolle 7 aus ihrer Position T1 in die Position T2 verstellt werden kann. Hierzu ist als Stellvorrichtung 4 in der der Kurvenrolle 7 zugeordneten Lagerbohrung 6 des Rollenhebels 8 vorzugsweise ein abgesetzter Lagerbolzen 5 mit einem koaxialen Abschnitt 9 aufgenommen. An einem Ende des abgesetzten Lagerbolzens 5 ist ein exzentrischer Zapfen 12 vorgesehen, auf dem die Kurvenrolle 7 frei drehbar aufgenommen ist. An dem der Kurvenrolle 7 gegenüberliegenden Ende ist am abgesetzten Lagerbolzen 5 ein koaxialer Zapfen mit Feingewinde 13 angebracht, auf dem eine Arretierungsmutter 10 vorgesehen ist. Der abgesetzte Lagerbolzen 5 kann von außen verdreht werden und mittels der Arretierungsmutter die eingestellte Lage durch Andrücken des abgesetzten Lagerbolzens 5 stirnseitig an den Rollenhebel 8 mittels der Arretierungsmutter 10 gesichert werden.The adjustment range of the circumferential position of the cam rollers 7 to one another is indicated in FIG. 2 by △ φ, wherein a cam roller 7 can be adjusted from its position T1 to the position T2. For this purpose, a stepped bearing pin 5 with a coaxial section 9 is preferably accommodated in the bearing bore 6 of the roller lever 8 assigned to the cam roller 7. At one end of the offset bearing pin 5, an eccentric pin 12 is provided, on which the cam roller 7 is freely rotatably received. At the opposite end of the cam roller 7, a coaxial pin with a fine thread 13 is attached to the offset bearing pin 5, on which a locking nut 10 is provided. The offset bearing pin 5 can be rotated from the outside and the set position can be secured by means of the locking nut 10 by pressing the offset bearing pin 5 on the end of the roller lever 8 by means of the locking nut 10.

Beim Verdrehen des exzentrischen Zapfens 12 des abgesetzten Lagerbolzens 5 bewegt sich die Mittellinie 16 der Kurvenrolle 7 um die Mittellinie 15 der Lagerbohrung 6 um △φ von T2 nach T1, wodurch die Veränderung des Achsabstandes der Kurvenrolle 7, d.h. der Mittellinie 16 zur ortsfesten Schwenkachse der Greiferwelle 14 bewirkt wird. Die Exzentrizität e muß klein z.B. = 0,5mm gewählt werden, um nicht zugleich eine größere Verstellung der Greiferöffnungsweite der einen Greiferreihe zur anderen zu bewirken, weil sich zugleich auch der Achsabstand der Mittellinie 16 zur Achse des bogenführenden Zylinders 1 und somit die Schwenklage der Greiferwelle 14 ändert.When the eccentric pin 12 of the stepped bearing pin 5 is rotated, the center line 16 of the cam roller 7 moves around the center line 15 of the bearing bore 6 by △ φ from T2 to T1, as a result of which the change in the center distance of the cam roller 7, i.e. the center line 16 to the fixed pivot axis of the gripper shaft 14 is effected. The eccentricity e must be small e.g. = 0.5 mm should be selected, so as not to simultaneously cause a larger adjustment of the gripper opening width of the one gripper row to the other, because at the same time the center distance of the center line 16 to the axis of the sheet-guiding cylinder 1 and thus the pivoting position of the gripper shaft 14 also change.

Aus Fig. 3 geht hervor, daß die Kurvenrolle 7 über Lager 21 auf dem exzentrischen Teil 12 des abgesetzten Lagerbolzens 5 aufgenommen ist. Ferner ist zur erkennen, daß der Rollenhebel 8 mit der Greiferwelle 14 durch einen Stift 17 fest verbunden ist.From Fig. 3 it can be seen that the cam roller 7 is received via bearings 21 on the eccentric part 12 of the offset bearing pin 5. It can also be seen that the roller lever 8 is firmly connected to the gripper shaft 14 by a pin 17.

Die Verlagerung der Kurvenrolle 7 ist nicht auf das Ausführungsbeispiel mit der beschriebenen Exzenterverstellung beschränkt, sondern kann auch durch eine verschiebbare Lagerung eines Lagerbolzens 5 im Rollenhebel 8 und eine entsprechende Einstellmöglichkeit erreicht werden oder ggf. auch durch exzentrisch oder verschiebbare Lagerung des Rollenhebels 8 auf der Greiferwelle 14.The displacement of the cam roller 7 is not limited to the exemplary embodiment with the eccentric adjustment described, but can also be achieved by a displaceable mounting of a bearing pin 5 in the roller lever 8 and a corresponding adjustment option or, if appropriate, also by an eccentric or displaceable mounting of the roller lever 8 on the gripper shaft 14.

BezugszeichenlisteReference list

11
bogenführender Zylinderbow-guiding cylinder
22nd
GreiferfingerGripper fingers
33rd
GreiferauflageGripper pad
44th
StellvorrichtungActuator
55
abgesetzter Lagerbolzenoffset bearing pin
66
LagerbohrungBearing bore
77
KurvenrolleCam roller
88th
RollenhebelRoller lever
99
koaxialer Abschnittcoaxial section
1010th
Muttermother
1111
SteuerkurveControl curve
1212th
exzentrischer Zapfeneccentric pin
1313
FeingewindeFine thread
1414
GreiferwelleGripper shaft
1515
MittellinieCenter line
1616
MittellinieCenter line
1717th
Stiftpen
1818th
GreiferhalterGripper holder
1919th
GreiferfederGripper spring
2020th
DruckfederCompression spring
2121
Wälzlagerroller bearing

Claims (2)

  1. Device for control of grippers which are comprised of two rows of grippers and are mounted lying diametrically opposite on circulating sheet guiding cylinders or drums about their periphery, in rotary sheet printing presses with several printing units, wherein the two rows of grippers are controlled in each case via a gripper shaft and a roller lever carrying a cam roll controlled by a control cam, characterised in that for the manual adjustment of the peripheral position of the two cam rolls (7) to a 180° turning angle φ at least one cam roll (7) is provided which is so displaceable with its centre line (16) relative to the axis of the gripper shaft (14) that the axial distance changes.
  2. Device according to Claim 1, characterised in that as adjusting device (4) in the bearing bore (6) of the roller lever (8), an offset bearing pin (5) with a coaxial section (9) is received, that on the offset bearing pin (5) an eccentric (12) is provided with eccentricity e, on which the one cam roll (7) is taken up freely rotatably via a bearing (21), that the offset bearing pin (5) can be turned from without and that on the end of the offset bearing pin (5) opposite the cam roll (7) there is provided a coaxial pin with a fine thread (13) on to which a lock nut (10) may be screwed to clamp the offset bearing pin (5) against the roller lever (8) in the axial direction.
EP91105473A 1990-04-26 1991-04-06 Device to control the grippers for rotary sheet printing machines Expired - Lifetime EP0453843B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4013261 1990-04-26
DE4013261A DE4013261C1 (en) 1990-04-26 1990-04-26

Publications (3)

Publication Number Publication Date
EP0453843A2 EP0453843A2 (en) 1991-10-30
EP0453843A3 EP0453843A3 (en) 1992-02-26
EP0453843B1 true EP0453843B1 (en) 1994-06-15

Family

ID=6405102

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105473A Expired - Lifetime EP0453843B1 (en) 1990-04-26 1991-04-06 Device to control the grippers for rotary sheet printing machines

Country Status (7)

Country Link
US (1) US5110109A (en)
EP (1) EP0453843B1 (en)
JP (1) JP2566690B2 (en)
AT (1) ATE107228T1 (en)
BR (1) BR9101677A (en)
DE (2) DE4013261C1 (en)
ES (1) ES2055936T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA53644C2 (en) * 1996-02-19 2003-02-17 Де Ла Рю Жіорі С.А. Impression cylinder ofa sheet-fed machine
DE19618029B4 (en) * 1996-05-04 2006-07-27 Heidelberger Druckmaschinen Ag Method and device for eliminating rhythmic register errors in sheetfed presses with multi-size cylinders

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4318003Y1 (en) * 1965-03-23 1968-07-25
US3463484A (en) * 1967-07-12 1969-08-26 Planeta Veb Druckmasch Werke Sheet gripping control mechanism for printing machines
US3606308A (en) * 1969-06-20 1971-09-20 Miller Printing Machinery Co Sheet gripping device
JPS5113804U (en) * 1974-04-30 1976-01-31
DD143152A1 (en) * 1979-06-01 1980-08-06 Helmut Schoene GRIPPER CONTROL OF CYLINDERS OF ARC-EMERGING MACHINES, ESPECIALLY PRINTING MACHINES
CS207440B1 (en) * 1979-10-15 1981-07-31 Arnost Cerny Facility for transferring the sheets
DD201422A1 (en) * 1981-10-12 1983-07-20 Hans Johne ARCH HOOK SYSTEM
JPS5866946U (en) * 1981-10-31 1983-05-07 三菱重工業株式会社 Claw adjustment device for sheet-fed printing presses
JPH0418852Y2 (en) * 1986-12-20 1992-04-27
DD278549A1 (en) * 1988-12-27 1990-05-09 Polygraph Leipzig DEVICE FOR ADJUSTING A GRIPPING DEVICE

Also Published As

Publication number Publication date
BR9101677A (en) 1991-12-10
ATE107228T1 (en) 1994-07-15
DE59101915D1 (en) 1994-07-21
ES2055936T3 (en) 1994-09-01
US5110109A (en) 1992-05-05
JP2566690B2 (en) 1996-12-25
JPH04226357A (en) 1992-08-17
DE4013261C1 (en) 1991-06-20
EP0453843A2 (en) 1991-10-30
EP0453843A3 (en) 1992-02-26

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