EP1514646B1 - Appareil pour la pose de rivets-écrous borgnes - Google Patents

Appareil pour la pose de rivets-écrous borgnes Download PDF

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Publication number
EP1514646B1
EP1514646B1 EP04021402A EP04021402A EP1514646B1 EP 1514646 B1 EP1514646 B1 EP 1514646B1 EP 04021402 A EP04021402 A EP 04021402A EP 04021402 A EP04021402 A EP 04021402A EP 1514646 B1 EP1514646 B1 EP 1514646B1
Authority
EP
European Patent Office
Prior art keywords
tool
housing portion
shaft
housing part
tool housing
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.)
Not-in-force
Application number
EP04021402A
Other languages
German (de)
English (en)
Other versions
EP1514646A1 (fr
Inventor
Lorenz Stöger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1514646A1 publication Critical patent/EP1514646A1/fr
Application granted granted Critical
Publication of EP1514646B1 publication Critical patent/EP1514646B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53717—Annular work
    • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/5373—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53717—Annular work
    • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/5373—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
    • Y10T29/53752—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter having rotary drive mechanism

Definitions

  • the invention relates to a setting tool for blind rivet nuts.
  • blind rivet nuts are inserted into holes preferably thin-walled workpieces that can not be threaded, whereupon the pressed with a flange to the workpiece blind rivet nuts are pulled so that at a Sollverformungsstelle on the side facing away from the flange side of the workpiece, a bead of the Blind rivet nuts forms, so that the blind rivet nuts are secured against rotation on the workpiece.
  • screws can be screwed into the blind rivet nuts.
  • US-A-3,838,588 discloses a setting tool for blind rivet nuts with the features of the preamble of claim 1.
  • the support sleeve is rotatably mounted in the nut. For this reason, it can not be checked with the prior art device whether a rivet nut attached to a workpiece is non-rotatably seated in the workpiece since the blind rivet nut can not be brought into the associated hole by the rotating screwdriving tool alone.
  • the present invention has for its object to provide a simple design setting tool for blind rivet nuts with which the blind rivet nuts are securely fastened in holes thin-walled workpieces and with this secure attachment is verifiable.
  • the setting tool has a single electric motor with a drive shaft, which is located in a first housing part and is connected via a gear with a tool housing part, a tool shaft arranged in the tool housing part shaft with which a helical tool is rotatably connected, which from the front end of Tool housing part protrudes, a locking device with which the tool housing part and the tool shaft rotatably coupled to each other or decoupled, a rotation, with the tool shaft is blocked against rotation or release for rotation, a spindle device, the relative axial movement between the tool shaft with the tool and the tool housing part causes when the tool shaft is blocked against rotation, and a support sleeve rotatably connected to the tool shaft and axially against this slidably or rotationally fixed to the tool housing is lockable housing part, so that a torque test is carried out.
  • the tool housing part by means of a piston / cylinder device is axially movable relative to the first housing part.
  • This piston / cylinder device preferably comprises two pneumatic piston / cylinder units, the pistons of which are movable in opposite directions in order to advance the tool housing part with the tool shaft and the tool axially in the direction of the workpiece or to withdraw it from the workpiece.
  • the piston / cylinder device allows a slow, controlled insertion of the blind rivet nut in the provided hole of the workpiece, wherein a stroke of about 100 mm is provided. While the one piston / cylinder unit, the tool housing part, the therein contained screw tool and the When the blind rivet nut is pushed forward in the direction of the workpiece so that the blind rivet nut is inserted into the hole, the other piston / cylinder unit operates to raise this entire assembly again, for example if the hole in the workpiece has been missed.
  • the transmission device with which the rotation of the drive shaft of the electric motor is transmitted to the tool housing part, preferably includes a first pulley which is non-rotatably mounted on the drive shaft, a rotatably connected to the tool housing part second pulley, which may also be formed by a portion of the Circumference of the tool housing part may be integrally provided with teeth, and a toothed belt, which transmits the rotational force from the first pulley to the second pulley. It is provided with great advantage that the first pulley is mounted axially displaceably on the drive shaft, so that the whole gear is back and forth together with the tool housing part.
  • the locking device with which the tool housing part can be locked with the tool shaft for common rotation preferably a surrounding the tool housing part locking sleeve which is reciprocated axially by an actuator between a locking position and an unlocked position along the tool housing part, and a plurality of balls, each sitting with a ball portion in cutouts in the wall of the tool housing part and engage with the rest of the ball portion either radially inward in pockets of the tool shaft or protrude radially outward.
  • the locking sleeve When the balls are partially in the windows of the wall of the tool housing part and the rest in the pockets of the tool shaft and are held in this position by the window radially outwardly overlapping locking sleeve, the tool shaft and thus the screw tool rotates together with the tool housing part.
  • the locking sleeve is retracted by the actuator, preferably the piston of a pneumatic piston / cylinder device, the front end portion of the locking sleeve has a radial clearance between the outer wall of the tool housing portion leaves free, is arranged on the windows, the balls are preferably pressed by lateral slopes of the pockets of the tool shaft radially outward and out of engagement with the tool shaft, so that the tool housing part relative to the tool shaft is freely rotatable.
  • an anti-rotation device is provided for the tool shaft, which preferably sits axially behind the tool shaft and can act on a polygon, for example square of the tool shaft so that the tool shaft is blocked.
  • This spindle device acting between the tool housing part and the tool shaft becomes effective, causing relative axial movement between the tool housing part and the tool shaft.
  • This spindle device preferably consists of a ball rolling nut, which is firmly connected to the tool housing part, and a ball screw, which is an integral part of the tool shaft. Between the ball roller nut and the ball screw a plurality of balls are arranged.
  • the setting tool operates as follows: First, a blind rivet nut is screwed onto the screwing tool by the electric motor rotates the tool housing part and thus rotatably coupled screwing tool. This "screwing" the blind rivet nut ends when the flange of the blind rivet nut reaches the support sleeve at the head end of the tool housing part.
  • the rotationally fixed coupling between the tool housing part and the tool shaft is released by the locking sleeve is pneumatically withdrawn, so that the balls can escape from the pockets of the tool shaft.
  • the anti-rotation device is effective by its cylinder is extended, and engages over the square of the tool shaft, so that the shaft is no longer rotatable.
  • the applied torque can be detected and used to calculate the pulling force with which the blind rivet nut was anchored in the hole.
  • the Ziehweg can be determined.
  • the anti-rotation device and the locking device are formed by a common coupling device, in a first axial position of a coupling element, the tool shaft rotatably coupled to the rotatable tool housing part and in a second axial position of the coupling element with a stationary housing part ,
  • a common coupling device in a first axial position of a coupling element, the tool shaft rotatably coupled to the rotatable tool housing part and in a second axial position of the coupling element with a stationary housing part
  • the tool shaft with a multi-edge approach preferably four-edge approach, slidably engages through a correspondingly shaped through hole of the coupling element.
  • the coupling element is preferably connected to a pneumatic piston for common axial displacement. It is also provided that the coupling element has a front conical coupling surface which is pressed in the first axial position of the coupling element against a corresponding conical surface of the rotatable tool housing part, and a rear conical coupling surface which in the second axial position of the coupling element against a corresponding conical Surface of a stationary housing part is pressed.
  • the arranged at the top end of the tool housing part support sleeve by means of a pneumatic piston against rotation with the rotatable tool housing part can be locked. This locking takes place during the torque test and can also be done before threading the blind rivet nuts.
  • the support sleeve is decoupled from the rotatable tool housing part.
  • a drive shaft 2 of an electric motor is rotatably mounted.
  • the electric motor is arranged on the left in the figure, the end of the drive shaft 2 and fixed to the housing part 1.
  • the drive shaft 2 has a portion 3, for example, has the cross-sectional shape of a polygon.
  • the bore On this section 3 sits a first pulley 4, the bore has a matching with the outer contour of the section 3 inner contour, so that the pulley 4 rotatably connected to the drive shaft 2, but sitting on its portion 3 longitudinally displaceable.
  • first housing part 1 Laterally next to the first housing part 1 sits a further housing part 5, which is reciprocable with the piston rod 6 of a seated in a cylinder 7 pneumatic piston 8 together with the first pulley 4 in the longitudinal direction of the drive shaft 2.
  • a tool housing part 9 is rotatably mounted, with which a second pulley is rotatably connected.
  • a toothed belt 10 transmits the rotational movement of the drive shaft 2 from the pulley 4 to the pulley of the tool housing part 9.
  • a tool shaft 11 which is rotatably connected at its right in the figure with a screw tool 12.
  • the tool housing part 9 and the tool shaft 11 are rotatably coupled to each other by balls 13, when these balls 13 engage with a respective ball portion in lateral pockets 14 of the tool shaft 11, as shown in Figures 1 and 3B.
  • the balls 13 are seated both in the locked to the common rotation of the tool housing part 9 with the tool shaft 11 and in the state shown in Figure 3A unlocked state partially in windows 15 in the wall of the tool housing part.
  • the area of the slots or window 15 is covered by a locking sleeve 16 radially outward, which has at its right in the figure end portion due to a step 17 a portion 18 having a larger inner diameter, so that between the inner wall of the portion 18 and the outer wall of the Tool housing part 9 remains a gap.
  • the locking sleeve 16 has an integrally formed outer annular piston 19 which is seated in a pneumatic cylinder chamber 20, so that the piston 19 with the locking sleeve 16 on the tool housing part 9 is axially movable.
  • the balls 13 are pressed against the bevels 17 of the locking sleeve 16 radially inwardly into engagement with the pockets 14 and through the inner surface of the now advanced locking sleeve 16 held in this position shown in Figure 3B, whereby the rotation of the tool housing part 9 is transmitted to the tool shaft 11.
  • the tool housing part 9 is non-rotatably connected to a ball nut 21, in concentric with an integrally formed with the tool shaft 11 or rotatably connected thereto ball screw 22 sits.
  • end of the tool shaft 11 is rotatably connected to a square 23 to its rotation, to block a cylinder 24 is provided at the left end of the housing 5, in which a retractable piston 25 is arranged, which can be pneumatically brought into engagement with the square 23 against the force of a coil spring 26.
  • a retractable piston 25 is arranged, which can be pneumatically brought into engagement with the square 23 against the force of a coil spring 26.
  • a support sleeve 28 is mounted, which contacts a flange 29 of a Blindnietmutter 30 when this blind rivet nut 30 is screwed in a state of the setting tool on the screw tool 12, in which the tool housing part 9 rotate together with the tool shaft 11 and the screw tool 12.
  • the drive shaft 2 runs the tool shaft 11 with the screw tool 12 (in the illustration of Figure 1) pulled to the left, whereby the blind rivet nut 30 is compressed at the edge of the hole 31 of the workpiece 32 so that a bead 32 is formed.
  • the workpiece 32 is thus clamped between the flange 30 and the bead 32, that the blind rivet nut 30 rotatably seated in the hole 31.
  • Figure 4 shows an alternative embodiment of the invention, which is preferred and differs from the first embodiment essentially in that the anti-rotation device and the locking device are formed by a common coupling means and that the support sleeve is lockable with the rotatable tool housing part.
  • the other components correspond to those of the first embodiment and are identified by the same reference numerals.
  • the tool shaft 11 has at its upper end in Figure 4 a four-Kant approach 33, which passes through a correspondingly shaped through hole 34 of a coupling element 35 slidably connected to the common axial movement with a pneumatic piston 36.
  • the coupling element 35 has at its front end portion a first conical coupling surface 37 and at its rear (in Figure 4 upper) end portion of a likewise conical coupling surface 38th
  • the support sleeve 28 can be rotatably connected in a similar manner by a further coupling member 40 with the rotatable tool housing part 9 in which a pneumatic piston 41, with which the coupling member 40 is rotatably connected, this with its conical peripheral surface 42 against a corresponding conical inner surface of the support sleeve 28th presses.
  • the compressed air inlet is designated in Figure 4 by the reference numeral 45.
  • the coupling element 40 sits axially displaceable on the rotatable tool housing part 9 and is rotatably connected thereto.
  • the support sleeve 46 rotatably, but axially displaceably connected to the tool shaft 47, via a fixedly connected to the support sleeve driver 48.
  • the non-rotatable, but axially displaceable storage is e.g. about square, multi-tooth, pins etc.
  • the support sleeve 28 is rotatably locked to the rotatable tool housing part 9, while it is decoupled when pulling the blind rivet nut.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Transmission Devices (AREA)
  • Insertion Pins And Rivets (AREA)
  • Knives (AREA)

Claims (10)

  1. Dispositif de pose pour écrous-rivets aveugles, comportant un moteur électrique avec un arbre d'entraînement (2), qui est agencé dans une première partie de carter (1) et qui est relié à un carter d'outil (9) par l'intermédiaire d'un dispositif à engrenage (4, 10), un arbre d'outil (11), qui est agencé dans le carter d'outil (9) et auquel un outil de vissage est relié de manière solidaire en rotation, un dispositif de verrouillage (13, 16 ; 35, 36) par lequel le carter d'outil (9) et l'arbre d'outil (11) peuvent être couplés l'un à l'autre de manière solidaire en rotation, un dispositif anti-rotation (23, 25 ; 35, 36) par lequel l'arbre d'outil (11) peut être immobilisé en rotation, un dispositif à broche (21, 22) qui, lorsque l'arbre d'outil (11) est bloqué en rotation, induit un mouvement axial relatif entre l'arbre d'outil (11) et le carter d'outil (9), et un manchon de support (46, 28), qui est prévu au niveau, de l'extrémité supérieure du carter d'outil (9) et hors duquel s'avance l'outil de vissage (12),
    caractérisé en ce que
    le manchon de support (46, 28) est relié à l'arbre d'outil (11) et peut être verrouillé dans le sens axial par rapport à celui-ci de manière à ne pouvoir effectuer ni mouvement de translation ni mouvement de rotation avec le carter d'outil (9), de telle sorte qu'il est possible de contrôler le couple de rotation.
  2. Dispositif de pose selon la revendication 1, caractérisé par un dispositif à cylindre et piston (7, 8), par lequel le carter d'outil (9) est mobile dans le sens axial par rapport à la première partie de carter (1).
  3. Dispositif de pose selon la revendication 1 ou 2, caractérisé en ce que le dispositif à engrenage comporte une première poulie (4) qui est reliée par l'intermédiaire d'une courroie dentée (10) à une deuxième poulie reliée au carter d'outil (9), et la première poulie (4) est agencée de manière mobile dans le sens axial sur une partie (3) de l'arbre d'entraînement (2).
  4. Dispositif de pose selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le dispositif à broche comporte un écrou à billes (21) et une broche filetée à billes (22) et en ce que l'écrou à billes (21) est assemblé de manière fixe au carter d'outil (9), tandis que l'arbre d'outil (11) comporte la broche filetée à billes (22).
  5. Dispositif de pose selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de verrouillage comporte un manchon (16), entourant le carter d'outil (9) et mobile dans le sens axial entre une position de verrouillage et une position de déverrouillage, et des billes (13), qui sont logées avec une partie dans des fenêtres (15) ménagées dans la paroi du carter d'outil (9) et avec la partie restante s'engagent radialement à l'intérieur de poches (14) de l'arbre d'outil (11) ou s'avancent radialement vers l'extérieur.
  6. Dispositif de pose selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif anti-rotation est un dispositif à cylindre et piston (24, 25), qui est monté fixe dans une partie de carter (5) et par lequel un tronçon polygonal (23) de l'arbre d'outil peut être immobilisé en rotation.
  7. Dispositif de pose selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de verrouillage et le dispositif anti-rotation sont formés par un dispositif de couplage (35, 36), par lequel, dans une première position axiale d'un élément de couplage (35), l'arbre d'outil (11) peut être couplé de manière solidaire en rotation avec le carter d'outil (9) rotatif et, dans une deuxième position axiale, peut être couplé à une partie de carter (39) stationnaire.
  8. Dispositif de pose selon la revendication. 7, caractérisé en ce que l'arbre d'outil (11) avec une saillie polygonale (33) traverse de manière mobile une forure débouchante réalisée avec une forme correspondante dans l'élément de couplage (35).
  9. Dispositif de pose selon la revendication 7 ou 8, caractérisé en ce que l'élément de couplage (35) peut être relié de manière rotative à un piston pneumatique (36) en vue d'un déplacement axial conjoint.
  10. Dispositif de pose selon l'une quelconque des revendications 7 à 9, caractérise en ce que l'élément de couplage (35) comporte une face de couplage avant (37) conique, qui peut être poussée dans la première position axiale contre une surface conique correspondante de la partie de carter (9) rotative, et une face de couplage arrière (38) conique, qui peut être poussée dans la deuxième position axiale contre une surface conique correspondante d'une partie de carter (39) stationnaire.
EP04021402A 2003-09-12 2004-09-09 Appareil pour la pose de rivets-écrous borgnes Not-in-force EP1514646B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10342143A DE10342143B4 (de) 2003-09-12 2003-09-12 Setzgerät für Blindnietmuttern
DE10342143 2003-09-12

Publications (2)

Publication Number Publication Date
EP1514646A1 EP1514646A1 (fr) 2005-03-16
EP1514646B1 true EP1514646B1 (fr) 2007-07-18

Family

ID=34129778

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021402A Not-in-force EP1514646B1 (fr) 2003-09-12 2004-09-09 Appareil pour la pose de rivets-écrous borgnes

Country Status (5)

Country Link
US (1) US7346970B2 (fr)
EP (1) EP1514646B1 (fr)
AT (1) ATE367244T1 (fr)
DE (2) DE10342143B4 (fr)
DK (1) DK1514646T3 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20013585U1 (de) * 2000-08-04 2000-12-07 Avdel Verbindungselemente Vorrichtung zum Laden eines Nietmoduls mit Blindnietmuttern
US8256104B2 (en) * 2004-01-15 2012-09-04 Fulbright David J Fastener installation system
US20070295779A1 (en) * 2005-01-13 2007-12-27 Fulbright David J Fastener installation system
TW201012600A (en) * 2008-09-25 2010-04-01 chong-yuan He Riveter
DE202009007413U1 (de) * 2009-05-25 2009-08-20 Sma Solar Technology Ag Diebstahlsicherung für einen Wechselrichter
US20110131776A1 (en) * 2009-12-04 2011-06-09 Stoeger Lorenz Automatic device for setting rivets
DE102011109808B4 (de) * 2011-08-08 2022-09-22 Volkswagen Aktiengesellschaft Verfahren zur Herstellung einer Bauteilverbindung durch Elementreibschweißen
CN106944587A (zh) * 2017-03-23 2017-07-14 苏州三铁电气有限公司 拉铆机构
EP3597357A1 (fr) 2018-07-18 2020-01-22 Newfrey LLC Dispositif de pose d'écrous à river aveugles
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
JP7187339B2 (ja) * 2019-01-30 2022-12-12 ポップリベット・ファスナー株式会社 ブラインドナット締結装置
WO2020244753A1 (fr) 2019-06-05 2020-12-10 Newfrey Llc Outil de pose d'écrous de rivet aveugle
EP3957441B1 (fr) * 2020-08-18 2024-03-13 SFS Group Germany GmbH Dispositif de pose fixateur de rivets aveugles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838588A (en) * 1971-05-14 1974-10-01 A Johnson Apparatus for setting unthreaded pull rivets
JPS5843229B2 (ja) * 1980-06-25 1983-09-26 ポツプリベツト・フアスナ−株式会社 締付け具の動力締着工具
GB8303633D0 (en) * 1983-02-10 1983-03-16 Armstrong Fastenings Installing rivet nuts
JPS59188158U (ja) * 1983-05-27 1984-12-13 ポツプリベツト・フアスナ−株式会社 ブラインドナツト締着工具の締着ストロ−ク調整構造
JPH0475882A (ja) * 1990-07-13 1992-03-10 Makita Corp 電動工具
DE4406946C2 (de) * 1994-03-04 1998-11-19 Gesipa Blindniettechnik Blindnietmutter-Setzgerät
SE508970C2 (sv) * 1996-03-20 1998-11-23 Volvo Ab Förfarande för fastsättning av ett fästelement, samt förband och verktyg för genomförande av förfarandet

Also Published As

Publication number Publication date
EP1514646A1 (fr) 2005-03-16
DE502004004342D1 (de) 2007-08-30
DE10342143A1 (de) 2005-04-14
US7346970B2 (en) 2008-03-25
ATE367244T1 (de) 2007-08-15
DK1514646T3 (da) 2007-11-19
DE10342143B4 (de) 2007-07-12
US20050055816A1 (en) 2005-03-17

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