EP0012829B1 - Machine de redressage - Google Patents

Machine de redressage Download PDF

Info

Publication number
EP0012829B1
EP0012829B1 EP79104472A EP79104472A EP0012829B1 EP 0012829 B1 EP0012829 B1 EP 0012829B1 EP 79104472 A EP79104472 A EP 79104472A EP 79104472 A EP79104472 A EP 79104472A EP 0012829 B1 EP0012829 B1 EP 0012829B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
straightening
rollers
machine
straightening machine
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
Application number
EP79104472A
Other languages
German (de)
English (en)
Other versions
EP0012829A1 (fr
Inventor
Horst Schneider
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.)
TH Kieserling and Albrecht GmbH and Co
Original Assignee
TH Kieserling and Albrecht GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TH Kieserling and Albrecht GmbH and Co filed Critical TH Kieserling and Albrecht GmbH and Co
Priority to AT79104472T priority Critical patent/ATE2302T1/de
Publication of EP0012829A1 publication Critical patent/EP0012829A1/fr
Application granted granted Critical
Publication of EP0012829B1 publication Critical patent/EP0012829B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work

Definitions

  • the invention relates to a feeder for a straightening machine according to the preamble of claim 1.
  • Straightening machines of this type are widely used because of their simplicity and because of a number of known advantages.
  • a decisive disadvantage of this type of straightener is that it only straightens in one plane. A workpiece curved in two planes must therefore be sent twice through such a straightening machine in order to obtain the desired straightness. Because of this disadvantage, these straightening machines are mainly used for straightening workpieces with an angular cross section, since no other continuous straightening machines have proven themselves for this purpose.
  • the result is the image of two prisms facing one another with their opening, which determine the passage cross-section that remains free for the workpiece when moving together.
  • the prisms on the arms are formed by prismatic profiled rollers or assembled into a prism.
  • the workpiece itself thus receives the feed necessary for the introduction into the straightening machine from the feed device. With this feed device, it is possible to achieve a preparation effect. This can be seen essentially in the fact that the workpiece to be fed is centered. The straightening and the intended avoidance of hitting the free ends of the workpiece to be straightened in this device indicate that this is a feed device for cross roll straightening machines.
  • a disadvantage of this device is that the entire length of the workpiece must be brought into the region of the arms or the prisms formed thereon. In the case of particularly crooked workpieces, it is not to be assumed that these will fall or roll into the feed device by themselves, rather special measures would have to be taken in this case to introduce the crooked workpiece into the channel. Setting up beyond the aforementioned centering of the workpiece in the sense that the workpiece is given permanent deformation is only possible to a very limited extent.
  • the object of the invention is therefore to simplify the feeding of bars and wire to the straightening machines mentioned at the beginning and to improve the straightening result.
  • this object is achieved by the characterizing features of claim 1.
  • the feed device With its three rollers, the feed device is limited to gripping the workpiece over a short longitudinal section. As a result, the input curvature of the workpiece only plays a very minor role, since the deviation from the ideal shape is small on this short, captured area.
  • the combination of the prisms with the aligned circumferential profiling of the feed rollers allows the prisms which inhibit the axial feed and are immovable in the axial direction to be brought into contact with the workpiece only while it is being gripped or centered, while the workpiece, once centered, is only in contact with the Feed rollers is in contact and can be fed without significant friction losses.
  • the feed rollers make it possible to bend the workpiece strongly in their area, since they can get by with a small diameter, because the neighboring prisms take over the actual centering task and are not a hindrance when the rollers move together.
  • the stroke of the second roller must be large not only for centering the workpiece but also for initiating the aforementioned strong deflection or curvature.
  • the quick adjustment device according to the invention is provided on the second roller. It allows workpieces of any curvature to be inserted between the first three rollers without taking an excessive amount of time for the long stroke.
  • the embodiment of the invention according to claim 3 offers various advantages when loading the straightening machine and allows retrofitting existing straightening machines with a feeder or feeder. Even with new machines, it can make sense to separate the drive unit and the actual straightening machine. Then most straightening machines of the type mentioned at the beginning offer the possibility of loading them from any side.
  • the feature of claim 4 allows an optimal design of the degree of plasticization of the workpiece between the first three straightening rollers and the required deflection so that the workpiece finds its way between the subsequent straightening rolls.
  • the feature of claim 5 can be provided.
  • the large stroke of the second roller is necessary for two reasons, firstly because a large path is required for centering the workpiece and secondly because the first three rollers of a straightening machine designed according to the invention have to bend the workpiece the most anyway.
  • the first three rollers of the straightening machine according to the invention are all driven, even if they are built as separate feed devices.
  • the feature of claim 7 can be provided.
  • the width of the opening for the lateral feeding of the workpiece is increased without unnecessarily increasing the stroke of the second roller and thus the entire machine frame.
  • FIG. 1 shows a straightening machine 1 with a plurality of straightening rollers 2 to 8 which are rotatably arranged in a vertical plane and whose axes of rotation 52 are arranged at right angles to the direction of passage (arrow 12). Arrow 12 also indicates the machine center 26.
  • the straightening rollers have a profile 11 on their circumference (FIG. 6).
  • the straightening rollers 2 to 8 are profiled round, while the first three straightening rollers 14, 15, 16 are profiled prismatically.
  • the straightening rollers 2, 4, 6, 8 arranged above are in a common . . men crosshead 13 rotatably and rotatably driven. The crosshead adjusts these straightening rollers radially towards the workpiece 23 with the aid of spindles 41, 42.
  • the lower straightening rollers 3, 5, 7, 14 are mounted in the machine frame in a stationary and rotationally driven manner.
  • the straightening roller 16 is received in the machine frame so as to be displaceable in the direction of passage (arrow 53).
  • Straightening rollers 2 to 8 are overhung.
  • the straightening roller 15 is received in a fork-shaped holder 30 which is actuated by a cylinder 33 with a piston rod 29.
  • the cylinder 33 is attached to a cantilever plate 28 which protrudes from the machine frame 27.
  • the adjustment of the roller 15 with a hydraulic cylinder allows a particularly large stroke “H”, which is greater than the adjustment possibility of the other adjustable straightening rollers 2, 4, 6, 8 with the crosshead 13.
  • the second straightening roller 15 has a quick adjustment device 18 (cf. Fig. 7). This consists of the hydraulic cylinders 33, 34, a pneumatic cylinder 35, two storage vessels 36, 37 for the hydraulic fluid, two electromagnetically operated switching valves 39, 40 and a limit switch 38. The limit switch and the switching valves are connected by electrical lines 54, 55. Compressed air is supplied to the system via the switching valve 39 or, depending on the circuit, the same can escape through the switching valve.
  • the hydraulic output 36, 37 are connected with their lower output to the cylinders 34, 33 and absorb displaced hydraulic fluid from the latter.
  • the upper outputs of the hydraulic accumulators are connected to the switching valve 39, as are both chambers of the pneumatic cylinder 35.
  • the switching valve 40 is provided, with which this output can be opened and closed.
  • a control bevel 56 is provided on the roll holder 30, with which the limit switch 38 is actuated.
  • lateral support means 19 to 22 are provided for the workpiece 23. These are widely spreading prisms that center the workpiece as it moves together.
  • the lower prisms 19 and 22, which surround the lower rollers 14 and 16, are movable radially to the workpiece.
  • the prisms 11 of the rollers and the associated support elements are aligned and complement one another in the illustration according to FIGS. 2 to 6.
  • the support prism 20, 21 on the second roller 15 (seen in the direction of passage) is of split design.
  • the bevel of this prism on the machine stand side is integrally formed on the roller holder 30 as a continuation thereof.
  • the support 20 with the associated slope of the prism is articulated on the open, ie on the feed side of this prism, with a joint 24 on a web of the roller holder.
  • the orientation of the axis of rotation of this joint corresponds to the axes 9, 10 of the straightening rollers.
  • the support 20 can be folded upwards for the lateral insertion of the workpiece 23.
  • a cylinder 31 is provided which actuates the foldable support 20, thereby expanding the lateral opening between the rollers 15 and 16 and thus facilitating the lateral feeding of the workpiece.
  • the support 20 When the support 20 is folded down, a passage cross section tapering like an aperture when the straightening rollers move together results for the workpiece in which it is centered until the rollers themselves the workpiece capture in order to then begin with the actual axial transport of the workpiece.
  • the support 20 is folded down until it comes to rest against the stop 43 and forms a prism together with the roller holder support 21.
  • the straightening rollers 14 to 16 are designed together with the machine frame carrying them in the form of an independent machine unit 25 and arranged on the inlet side of the straightening machine. They can be arranged on any side of the remaining part of the leveler. This means that the straightening machine can be loaded from any side and direction.
  • the roller 16 is guided horizontally displaceably in the machine frame 27.
  • the workpiece 23 experiences its strongest bend between the first three rollers. Due to the resulting strong inclination of the workpiece start, special measures are required in individual cases so that the workpiece finds its way between the next straightening rollers during axial feed. For this purpose, the rollers 14 and 16 are set lower, so that the base of their circumferential profile is arranged by the dimension "S" below the machine center 26.
  • All straightening rollers are driven, as shown in the example of straightening rollers 15, 16 with the horizontal axes of rotation 9, 10 in FIG. 6. This takes place via a motor 47 standing on a table 48, which transmits the necessary drive torque to the straightening rollers via a gear 46.
  • the latter are connected with drive shafts 49, 50 to the gear 46.
  • the cardan shafts extend through the machine stand 27 in a rear recess 51.
  • the roll holder 44 of the lower roll 16 is supported on a bracket 45.
  • the dimension "S" by which the effective peripheral surface of the rollers 14 and 16 is offset from the following rollers 3, 5, 7, down on the same side of the workpiece, is designed so that the workpiece with the greatest area moment of inertia that the plasticization required for straightening is obtained by bending through the first three straightening rollers 14, 15, 16, just between the straightening rollers 2 and 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Paper (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Removal Of Specific Substances (AREA)
  • Confectionery (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Claims (7)

1. Dispositif d'amenée et d'avance (25) pour machine à redresser les pièces à usiner à section transversale circulaire (1), courbées dans le sens longitudinal, qui est fixé sur le côté d'amenée de la machine à redresser, dont les axes de rotation des rouleaux de dressage forment un angle droit avec le sens du défilement (12) des pièces à usiner (23) et dont les rouleaux (2-8), qui sont placés dans un ordre de succession alternant de part et d'autre de la pièce à usiner, sont dotés sur leur périphérie d'une zone profilée correspondant essentiellement à la section transversale de la pièce à usiner, alors que les pièces à dresser sont engagées latéralement (17) vu dans le sens du défilement (12) et qui comporte un certain nombre d'éléments d'appui prismatiques (19-22) disposés les uns derrière les autres et se déplaçant entre une position dite d'ouverture placée transversalement au sens du défilement (12) des pièces à usiner (23) et une position dite de fermeture dans laquelle s'effectuent la déformation et le centrage des pièces à usiner et qui est équipé, le cas échéant au-dessus de l'axe de défilement (12) des pièces à usiner, d'au moins un rouleau de dressage moteur (15), ce dispositif (25) étant caractérisé en ce qu'il comporte trois rouleaux (14, 15, 16) auxquels sont coordonnés un certain nombre de prismes (19 à 22), qui sont décalables en correspondance au réglage proposé des rouleaux dans le sens radial et dont le profil de la zone périphérique est aligné sur les faces obliques des prismes, alors que le deuxième rouleau (15), vu dans le sens du défilement (12), comporte un dispositif de réglage rapide (18) indépendant des autres rouleaux (2, 4, 6, 8, 14, 16).
2. Machine à redresser selon la revendication 1, caractérisée en ce que la largeur des prismes (19 à 22) est déterminée de manière que la courbure maximale des pièces à usiner, dans la zone des trois premiers rouleaux de dressage, soit occupée par les prismes.
3. Machine à redresser selon les revendications 1 et 2, caractérisée en ce que les trois premiers rouleaux de dressage (14, 15, 16) constituent une unité indépendante séparée, voire dissociable de la machine à redresser (25) proprement dite.
4. Machine à redresser selon les revendications 1 à 3, caractérisée en ce que le premier et/ou le troisième rouleau, vu dans le sens du défilement (12) de la pièce à usiner (23), est décalable dans le sens horizontal.
5. Machine à redresser selon les revendications 1 à 4, caractérisée en ce que la course (H) du deuxième rouleau (15) est plus grande que la course de tous les autres rouleaux de dressage.
6. Machine à redresser selon les revendications 1 à 5, caractérisée en ce que le premier et le troisième rouleaux (14, 16), notamment leur zone périphérique active, sont plus éloignés (distance S) de la ligne médiane droite imaginaire (26), d'une pièce à usiner s'étendant sur toute la longueur de la machine à redresser que les rouleaux de dressage 3, 5, 7, placés sur le même côté de la pièce à usiner.
7. Machine à redresser selon la revendication 2, caractérisée en ce que les éléments d'appuis (19 à 22) sont partiellement reliés à un vérin de commande (31) et peuvent ainsi être rabattus par l'intermédiaire d'une articulation (24) maintenue sur un étrier porte-rouleau (30).
EP79104472A 1978-12-20 1979-11-13 Machine de redressage Expired EP0012829B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104472T ATE2302T1 (de) 1978-12-20 1979-11-13 Richtmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782855014 DE2855014A1 (de) 1978-12-20 1978-12-20 Richtmaschine
DE2855014 1978-12-20

Publications (2)

Publication Number Publication Date
EP0012829A1 EP0012829A1 (fr) 1980-07-09
EP0012829B1 true EP0012829B1 (fr) 1983-01-26

Family

ID=6057746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104472A Expired EP0012829B1 (fr) 1978-12-20 1979-11-13 Machine de redressage

Country Status (8)

Country Link
US (1) US4286452A (fr)
EP (1) EP0012829B1 (fr)
JP (1) JPS5586623A (fr)
AT (1) ATE2302T1 (fr)
DD (1) DD148014A1 (fr)
DE (2) DE2855014A1 (fr)
ES (1) ES487131A0 (fr)
HU (1) HU179998B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571821A (en) * 1983-08-26 1986-02-25 Westinghouse Electric Corp. Sleeve insertion
US4829801A (en) * 1986-11-03 1989-05-16 Mcraine Lance W Cable straightening apparatus
JPH0211653U (fr) * 1988-06-29 1990-01-24

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449241B2 (de) * 1974-10-16 1979-08-30 Th. Kieserling & Albrecht, 5650 Solingen Zuführeinrichtung für Schrägrollenrichtmaschinen
DE1914647C3 (de) * 1969-03-22 1980-11-13 R. & G. Schmoele Metallwerke Gmbh & Co Kg, 5750 Menden Zuführvorrichtung für stangen- oder rohrförmige Werkstücke in eine Richtmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US962831A (en) * 1909-12-01 1910-06-28 John P Haga Straightening-machine.
US1835198A (en) * 1929-04-26 1931-12-08 Petter B Abramsen Straightening machine
US2746513A (en) * 1952-10-24 1956-05-22 Arthur L Kiesow Wire straightening and tensioning attachment for baling machine
US3621693A (en) * 1969-08-08 1971-11-23 United Eng Foundry Co Straightening machine for structural workpieces
DE2036707A1 (de) * 1970-07-24 1972-01-27 Hoesch Ag, 4600 Dortmund Verfahren und Vorrichtung zum Richten von geschweißten Tragern
JPS5334590B2 (fr) * 1973-04-04 1978-09-21
DE2455254C3 (de) * 1974-11-22 1978-11-09 Moeller & Neumann Gmbh, 6670 St Ingbert Profilrichtmaschine mit zueinander versetzten oberen und unteren, fliegend angeordneten Richtrollen
DE2540731C3 (de) * 1975-09-10 1978-09-21 Mannesmann Ag, 4000 Duesseldorf Einlaufvorrichtung an Rollenrichtmaschinen für Rohre

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1914647C3 (de) * 1969-03-22 1980-11-13 R. & G. Schmoele Metallwerke Gmbh & Co Kg, 5750 Menden Zuführvorrichtung für stangen- oder rohrförmige Werkstücke in eine Richtmaschine
DE2449241B2 (de) * 1974-10-16 1979-08-30 Th. Kieserling & Albrecht, 5650 Solingen Zuführeinrichtung für Schrägrollenrichtmaschinen

Also Published As

Publication number Publication date
JPS5752126B2 (fr) 1982-11-05
ATE2302T1 (de) 1983-02-15
HU179998B (en) 1983-01-28
US4286452A (en) 1981-09-01
ES8101422A1 (es) 1980-12-16
DD148014A1 (de) 1981-05-06
JPS5586623A (en) 1980-06-30
DE2964646D1 (en) 1983-03-03
DE2855014A1 (de) 1980-07-03
EP0012829A1 (fr) 1980-07-09
ES487131A0 (es) 1980-12-16

Similar Documents

Publication Publication Date Title
DE2256030C2 (de) Walzgutabwärtswickler und Verfahren zum Einleiten des Abwickelns eines Walzgutwickels
EP0419441B1 (fr) Appareil de pliage pour barres de fer à béton
DE69121069T2 (de) Biege-Formeinrichtung von Stangen und Verfahren zum Einbringen von Biegungen der hinteren Enden von Stangen
EP0910486A1 (fr) Procede et dispositif de pliage de profiles a postes modulaires multiples
DE2347768A1 (de) Verfahren zum herstellen von insbesondere hochfesten ketten und vorrichtung zum durchfuehren des verfahrens
DE3523608A1 (de) Verfahren und vorrichtung zum runden von blechen, insbesondere fuer dosenkoerper
DE2414906A1 (de) Zusammenstellungs- und uebergabevorrichtung
EP0012829B1 (fr) Machine de redressage
DE4117955A1 (de) Vorrichtung zum biegen von buegeln aus betonstahl
DE2621902C3 (de) Verfahren und Vorrichtung zum Biegen erwärmter Glasscheiben
CH653928A5 (de) Verfahren zum biegen von profilblechen und vorrichtung zur durchfuehrung des verfahrens.
DE10113664A1 (de) Vorrichtmaschine zum Richten insbesondere der Bandanfänge und -enden von gewalzten Bändern bzw. Blechen
DE2349693A1 (de) Verfahren und vorrichtung zum richten von stranggutabschnitten, insbesondere von stangen und rohren
DE2640153A1 (de) Durchlaufpresse mit mindestens einem einstellbaren walzenpaar zum verpressen von mehrscheiben-isolierglas
EP0027106B1 (fr) Dispositif pour amener automatiquement du matériau en tiges à une machine à cintrer des brides d'armature de béton
EP0540896A1 (fr) Machine à enrouler pour enrouler une bande, notamment une bande de papier
DE2502651A1 (de) Richtmaschine
EP0102014B1 (fr) Cage de laminoir pour le laminage de feuillard à largeur différente
DE68915247T2 (de) Automatisierbare Rundwalzeneinrichtung mit verzahnten Walzen.
DE3424439A1 (de) Richtvorrichtung
EP0006074A1 (fr) Dispositif et méthode pour calibrer et aligner des tubes à l'aide d'une unité de calibrage pourvue de mâchoires de calibrage
DE2352281C3 (de) Richtanlage für Rohre
EP0659494A2 (fr) Dispositif pour emmener les tubes laminés à froid après un laminoir à pas de pèlerin froid
DE102004052549B4 (de) Abstandhalter für den Betonbau sowie Vorrichtung zum Aufbringen mehrerer Abstandhalter auf einen Bewehrungsstab
DE10010053A1 (de) Stahlplatten-Richtmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19801223

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TH. KIESERLING & ALBRECHTGMBH & CO. KG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: TH. KIESERLING & ALBRECHT GMBH & CO.

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE DE FR GB IT NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19830126

Ref country code: NL

Effective date: 19830126

Ref country code: BE

Effective date: 19830126

REF Corresponds to:

Ref document number: 2302

Country of ref document: AT

Date of ref document: 19830215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 2964646

Country of ref document: DE

Date of ref document: 19830303

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19841119

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19861030

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19871113

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19880729

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881118

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19900925

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920801

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT