EP0553665B1 - Traggerüst - Google Patents

Traggerüst Download PDF

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Publication number
EP0553665B1
EP0553665B1 EP93100580A EP93100580A EP0553665B1 EP 0553665 B1 EP0553665 B1 EP 0553665B1 EP 93100580 A EP93100580 A EP 93100580A EP 93100580 A EP93100580 A EP 93100580A EP 0553665 B1 EP0553665 B1 EP 0553665B1
Authority
EP
European Patent Office
Prior art keywords
inner tube
outer tube
tube
scaffold according
stiffener
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
EP93100580A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0553665A1 (de
Inventor
Artur Schwörer
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.)
Peri GmbH
Original Assignee
Peri GmbH
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 Peri GmbH filed Critical Peri GmbH
Priority to EP95114768A priority Critical patent/EP0694659B1/de
Publication of EP0553665A1 publication Critical patent/EP0553665A1/de
Application granted granted Critical
Publication of EP0553665B1 publication Critical patent/EP0553665B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
    • E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
    • E04G1/12—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means comprising members of special, e.g. composite, cross-section or with lugs or the like or lateral apertures for supporting or attaching other members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods

Definitions

  • the invention relates to a support frame with height-adjustable supports having an outer tube and an inner tube and with stiffeners and fastening means arranged between them for the connection between the outer tube and the stiffener.
  • supports are known in which the inner tube has approximately the length of the outer tube, so that when the inner tube is maximally extended, a relatively long support section consists only of the inner tube.
  • an outer tube length of 1.90 m for example, with a cover of 30 cm stipulated in the DIN, a full length extension of a ceiling prop with a maximum length of 3.50 m is obtained.
  • supports are used in which only a threaded spindle with a foot or ceiling plate, which is only relatively short because of the reduction in the load-bearing capacity, is arranged in the outer tube, so that the total length of the support is not is much larger than the length of the outer tube.
  • supports are also known in which the inner tube can be telescopically extended and the inner tube has a thread over a longer longitudinal section which serves to adjust the height of the support.
  • the inner tube is round and the thread is cut over the entire circumference of the inner tube.
  • the invention has for its object to develop a scaffold that is adjustable in height and with which heights can be supported, which are much greater than the length of the outer tube, with which heights can be supported, up to twice the height of the outer tube minus the overlap prescribed between the inner and outer tube of a height-adjustable support is high.
  • the inner tube has an external thread for adjusting the support height, that the cross section of the inner tube is not round and that the thread is provided in the areas with a large outer diameter.
  • the invention has the advantage that in the peripheral portion, which have a smaller diameter and therefore do not carry a thread, special brackets can be provided for the connecting parts of the bracing, which therefore do not interfere with the usual threaded nut for supporting the inner tube on the outer tube or vice versa.
  • the cross section of the outer tube can be circular or, in a particular embodiment of the invention, have a cross section whose shape corresponds to the shape of the cross section of the inner tube, but is larger than the latter for receiving the inner tube.
  • stiffeners can be arranged at any height of the extended support and thus very high loads can be transferred, for example not only loads of a ceiling, but also loads with other supporting structures such as vaults, Bridges or the like.
  • the stiffeners can thus be attached at those points on the scaffold where this is particularly advantageous for structural reasons.
  • the stiffening can have connecting parts for connecting the inner tube as well as connecting parts for connecting the outer tube, which can be designed differently.
  • This embodiment has the advantage that there are structurally very many options for attaching the bracing to both the outer tube and the inner tube.
  • This embodiment is also suitable, for example, if the external thread extends over the whole or at least over a large part of the length of the inner tube. Then namely that the fastening parts intended for fastening to the inner tube can be designed to engage in the thread, but the parts for fastening the bracing to the outer tube can be made substantially simpler if, for example, only notches or projections are provided on the outer tube of the support for fastening the stiffening .
  • the connecting parts of the stiffening both for fastening to the inner tube and the connecting parts for fastening the stiffening to the outer tube are of the same design, for example they can also be adjustable.
  • This embodiment of the invention can be further developed in such a way that at a certain point of the stiffening there is only one connecting part designed both for fastening to the inner tube and for fastening to the outer tube. This enables very simple handling when setting up such scaffolding.
  • the outer tube and the inner tube have radially projecting lugs that Projections extending transversely to the radius and on the radially inward side of these projections have recesses for the entry of fastening means engaging behind the projections, which are arranged on the stiffeners.
  • Such a cross-sectional configuration of the outer and inner tube has the advantage that only a single type of fastening means has to be arranged on the bracing, for example a type of clamp which is designed such that it engages behind both the projections on the outer tube and the projections on the inner tube can.
  • the connecting parts of the bracing engage outside the plane determined by the axes of two adjacent supports on the support, that is to say, for. B. eccentric to the column axis from the side.
  • a stiffening rod only acts on the outer tube.
  • the end of the stiffening rod has an eye extending transversely to the axis, in which a screw is fastened, the head of which is held in a groove with a T-shaped cross section.
  • This laterally attached to the support in embodiments of scaffolding according to the invention has the advantage that the length of the bracing and the arrangement of the connecting parts for fastening the bracing to the support can be arranged exactly at the same location of the bracing, because the axial dimension between the Fastening points of the bracing on adjacent supports is the same.
  • the bracing can therefore be fastened with one and the same connecting part to the outer tube or to the inner tube, provided that only the parts cooperating with these connecting parts on the outer tube and on the inner tube correspond.
  • the receptacles provided on the outer tube and on the inner tube for the fastening means provided on the bracing can be arranged at a distance from one another along the tubes.
  • the lugs and the projections of the tubes are formed by the shape of the tube cross section and extend over the entire length of the tube.
  • the external thread of the inner tube can be arranged in the region of the peripheral surface of the lugs, so that the height adjustment of the ceiling support can be carried out in the usual manner by means of a screw thread with a threaded nut supported on the external tube.
  • the supports can be made of steel or aluminum.
  • the thread can be cut into sections of the circumference or rolled or the same in the manufacture of Tube, for example in the extrusion process, are rolled.
  • an inner tube 1 has an extendable support for a ceiling scaffold about the same cross-sectional shape as an outer tube 2, which completely receives the inner tube 1.
  • the inner tube 1 has four radially projecting lugs 3 distributed over the circumference, which carry projections 4 extending transversely to the radius and have a thread 5 on their outer surface.
  • the inner tube 1 is made by extrusion.
  • the lugs 3 and the projections 4 run on the circumference of the inner tube 1 in the direction of the generatrices over the entire length of the inner tube 1. There is so much play between the outer surface of the inner tube 1 and the inner surface of the outer tube 2 that the inner tube 1 extends in the longitudinal direction the outer tube 2 can move slightly.
  • a thread nut engages in the thread 5, which is designed as a wing nut and which is screwed along the inner tube 1 with the inner tube 1 extended until this nut rests on the end face of the outer tube 2 and thus determines the extension length and that of the inner tube 1 transferred load transferred to the outer tube 2.
  • the thread 5, as shown in the drawing, has a diameter which is greater than the inner diameter of the outer tube 2, so that a relatively large adjustment path in the axial direction of the support is achieved by one revolution of the threaded nut. Since the thread 5 is arranged only on a partial section of the circumference, it is much easier to manufacture than in the case of spindles with threads running around the entire circumference.
  • the other walls of the inner tube 1 do not have the shape of circular arc segments, but rather a shape reminiscent of an octagon, which at least partially meets the static requirements and also the requirements for simple manufacture.
  • the cross section of the outer tube 2 has, at least on its inner surface, a shape that follows the shape of the outer surface of the inner tube 1.
  • the outer tube 2 also has lugs 6 which extend over the entire length and which in turn have projections 7 extending transversely thereto.
  • the wall section located between the lugs 6 is also pronounced of the shape of an octagon.
  • the wall thickness of the tubes 1 and 2 is selected so that they both have approximately the same stability and high scaffolds can be produced without load reduction even with the individual supports extended, that is to say, for example, without a stiffening 8 between individual supports.
  • the inner tube 1 also has a longitudinal recess 18 in which, for example, a scale can be attached.
  • the cross section of the recess 18 can be T-shaped.
  • Fastening means provided on the bracing 8 can be designed differently in connection with the illustrated embodiment of the support.
  • an embodiment is shown, which is designed in the manner of a clamp.
  • This clamp has two mutually opposite clamping jaws 12, which have recesses 13 on their mutually facing side, which encompass both the nose 7 of the outer tube 2 (left side of the illustration) and the nose 4 of the inner tube 1 (right side of the drawing) capable, the front part of the clamping jaws 12 adjoining the recess 13 then entering the recess 9 or 10 and thus engages behind the nose 4 or 7, so that a positive connection between the stiffening 8 and the support tube 1 or 2 is guaranteed to absorb tensile or compressive forces.
  • the narrow clamping position in which the clamp comprises the lugs 3 of the inner tube 1, is secured by a bracket wedge 14, not shown in detail, the somewhat further clamping position required for gripping around the lugs 6 of the outer tube 2 is secured by the same bracket wedge on another wedge step .
  • the fastening means 11 is fastened to the stiffening 8, which can be a frame or just a cross bar.
  • a stop 16 for the open position of the clamp and a guide for the bracket wedge 14 formed from two cusps 17 can also be provided on the clamp serving as fastening means 11.
  • the stiffener 8 is connected in the plane to the support, which is determined by axes 18 of two adjacent supports. But it is also possible to attach stiffeners outside of this plane to the supports, for example eccentrically to the support axis 18, that is to say that compressive and tensile forces act approximately tangentially on a support.
  • This is shown in FIG. 1 in principle by a connecting part 19 designed in the manner of a screw clamp with a fixed clamping jaw 20 and a displaceable clamping jaw 21.
  • the two clamping jaws have cutouts 22 and 23 on the inner surface facing one another, which are suitable both for receiving the lugs 7 on the outer tube and for receiving the lugs 4 on the inner tube.
  • the jaw width of the screw clamp is only slightly larger than after the clamping jaw 21 has been clamped on when attaching the stiffener 24 to the corresponding connecting parts 4 of the inner tube.
  • a bracing 25 is in turn fastened in the plane formed by the axes 18 of adjacent supports.
  • Fig. 2 only the parts necessary for understanding the invention are shown in principle.
  • the one jaw 26 of a fastening clamp is rigidly fastened by rivets 27, the end of which in FIG. 2 engages in the recess 10 on the nose 6 of the outer tube 2 at the bottom.
  • the clamping jaw 26 is a movable clamping jaw 28 which can be pressed by a screw 29 into the recess on the nose 6 opposite the recess 10.
  • the screw 10 is screwed into a threaded piece 30.
  • the mouth width of the clamp is set by turning the screw 29.
  • the attachment of the stiffener 25 is indicated by means of the clamp 31 on a nose 3 of the inner tube.
  • the axis of this tube when attached to the outer tube of the support, runs at a small distance from the plane determined by the axes 18 of adjacent supports.
  • the axis of the tube of the bracing 25 runs exactly in the plane of the plane determined by the axes 18.
  • Fig. 4 shows other fastening means between the tubes of the support and a stiffener 31 and 32.
  • stiffeners act compressive and tensile forces, which are indicated by the double arrow 33.
  • Outer tube 34 and inner tube 35 have an approximately square cross section. Both tubes have on their sides, each offset by 90 ° in cross-section, T-shaped longitudinal grooves 36 on the outer tube and 37 on the inner tube, into which a hammer head-shaped screw head 38 can be inserted.
  • the associated screw shaft 39 passes through an eye 40 at the end of the stiffeners 31 and 32 and is fastened there by means of a screw nut 41.
  • the inner tube 35 has at its largest outer radius portions threaded portions 42 into which an internal thread 43 of a wing nut engages when the inner tube is pulled out, which serves to adjust the support height and is supported on the end face of the end of the outer tube 34.
  • the wing nut is not shown, but only the circle of the internal thread 43.
  • the bracing 31 and 32 is arranged at right angles to one another on the support 34, 35. This possibility represents a further advantage of the embodiments according to the invention.
  • Notches not shown in the drawing can be pressed or milled into the stiffening or the circumference of the tubes for a positive transmission of vertical loads.
  • the connections of the bracing on the supports are also designed to be non-positive to accommodate V-loads.
  • the fastening means 11 are designed so that they can be used on the outer tube 2 as well as on the inner tube 1 without change and accommodate a connection which absorbs the forces which occur between a framework-like stiffening and the support.
  • the stiffening 8 increases the load-bearing capacity of a scaffold considerably. With suitable truss-like stiffening, for example, a load capacity of over 60 kN can arise, even if the extended single support has a load capacity of 30 kN only.
  • the lugs 3 and 6 do not extend over the entire length of the tube, but only over a few longitudinal sections of the tubes 1 and 2.
  • a support structure In the manufacture of a support structure, several support structures, each consisting of an extendable support and a stiffener, can be arranged one above the other, so that scaffold heights are achieved which are a multiple of the height of an extended support.
  • the support shown can also be used as a single support for absorbing any ceiling loads.
  • the arranged on the inner tube 1 thread 5 for the height adjustability of the support can either be cut into the outer surface of the lugs 3 or rolled or rolled, for example directly during the expedient manufacture of the profiles by extrusion.
  • the individual parts for example, have a weight of less than 20 kg, although such a support, also because of the particularly favorable cross-sectional shape, has a load capacity of 30 kN, even if it is made of aluminum or an aluminum alloy.
  • the cross-sectional shapes of the outer tube 2 and the inner tube 1 can also have longitudinal projections on their inner surface, which serve for further stiffening of the tubes.
  • the thread 5 can be single or multiple threads.
  • outer tubes can also be stacked on top of each other and only the uppermost column has an inner tube with which the overall height of the scaffold can be adjusted.
  • the inner tube of the support can also contain a further inner tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Supports For Pipes And Cables (AREA)
  • Clamps And Clips (AREA)
  • Catching Or Destruction (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Movable Scaffolding (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
EP93100580A 1992-01-25 1993-01-15 Traggerüst Expired - Lifetime EP0553665B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95114768A EP0694659B1 (de) 1992-01-25 1993-01-15 Traggerüst

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4201958A DE4201958A1 (de) 1992-01-25 1992-01-25 Traggeruest
DE4201958 1992-01-25

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP95114768.5 Division-Into 1993-01-15
EP95114768A Division EP0694659B1 (de) 1992-01-25 1993-01-15 Traggerüst

Publications (2)

Publication Number Publication Date
EP0553665A1 EP0553665A1 (de) 1993-08-04
EP0553665B1 true EP0553665B1 (de) 1996-05-15

Family

ID=6450205

Family Applications (2)

Application Number Title Priority Date Filing Date
EP93100580A Expired - Lifetime EP0553665B1 (de) 1992-01-25 1993-01-15 Traggerüst
EP95114768A Expired - Lifetime EP0694659B1 (de) 1992-01-25 1993-01-15 Traggerüst

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP95114768A Expired - Lifetime EP0694659B1 (de) 1992-01-25 1993-01-15 Traggerüst

Country Status (6)

Country Link
US (1) US5388666A (enrdf_load_stackoverflow)
EP (2) EP0553665B1 (enrdf_load_stackoverflow)
JP (1) JP2601610B2 (enrdf_load_stackoverflow)
AT (2) ATE183799T1 (enrdf_load_stackoverflow)
DE (3) DE4201958A1 (enrdf_load_stackoverflow)
ES (2) ES2090717T3 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001170B3 (de) * 2007-01-05 2008-07-03 Dingler, Gerhard Anschlusselement zur Befestigung einer Aussteifung an einem Innenrohr einer teleskopierbaren Baustütze und teleskopierbare Baustütze mit einem solchen Anschlusselement

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1265505B1 (it) * 1993-09-16 1996-11-22 Interfama Srl Montante con puntello per cassero,tavoli per solai,ponteggi e simili.
DE4407469C2 (de) * 1994-03-05 1997-08-07 Peri Gmbh Kupplung zum Verbinden von Gerüstteilen
US6238156B1 (en) 1999-11-05 2001-05-29 Xerox Corporation Tube assembly device
US6322277B1 (en) * 2000-03-13 2001-11-27 Wilian Holding Company Clamp for interconnecting components of shoring apparatus
ITPD20010098U1 (it) * 2001-10-17 2003-04-17 Faresin Spa Struttura di puntello telescopico particolarmente per uso edile
NL1021191C1 (nl) * 2002-07-31 2004-02-03 Scafom Internat B V HD Ondersteuningssysteem-moduul.
US7165361B2 (en) * 2003-04-24 2007-01-23 Peter Vanagan Building construction shores
USD504183S1 (en) 2003-07-15 2005-04-19 Wilian Holding Company Shoring post
ITUD20050150A1 (it) * 2005-09-21 2007-03-22 Pilosio Spa Dispositivo di sostegno per realizzare casseforme per solai o simili manufatti edili
EP2679746A1 (de) * 2012-06-29 2014-01-01 Hofin GmbH Stütze für Betonierungsschalungen
CN103147567B (zh) * 2013-03-21 2015-04-08 湖南金峰建达科技发展有限公司 自锁式脚手架固定装置
DE102015219043A1 (de) * 2015-10-01 2017-04-06 Doka Gmbh Baustütze
GB201717019D0 (en) * 2017-10-17 2017-11-29 J Mac Safety Systems Ltd Improvements in or relating to safety decking
EP4284989A4 (en) * 2021-03-05 2025-03-26 Sayfa R&D Pty Ltd Structural post for fall protection and rope access

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DE291046C (enrdf_load_stackoverflow) *
US3313081A (en) * 1964-04-20 1967-04-11 Superior Scaffold Co Multiple brace point extendable shore
JPS439239Y1 (enrdf_load_stackoverflow) * 1964-04-24 1968-04-22
FR2147430A5 (enrdf_load_stackoverflow) * 1971-07-27 1973-03-09 Mills Echafaudages Tubul
DE2138075B2 (de) * 1971-07-30 1979-07-05 Wilhelm Layher Gmbh, 7129 Gueglingen Fußspindel für Rohrgerüste
US4069638A (en) * 1974-06-05 1978-01-24 Scanovator Ab Structure of lightweight bars and connector means therefore
DE2634665A1 (de) * 1975-08-04 1977-02-17 Ciba Geigy Ag Verfahren zur herstellung von hartstoffpulvern
FR2324830A2 (fr) * 1975-09-19 1977-04-15 Self Lock Echafaudages Echafaudage prefabrique
FR2421253A1 (fr) * 1978-03-30 1979-10-26 Cambon Michel Dispositif pour faire varier la hauteur des poteaux d'un echafaudage-tour
US4462197A (en) * 1980-09-10 1984-07-31 Harsco Corporation Shoring system and parts thereof
EP0049096B1 (en) * 1980-09-29 1985-12-27 Aluma Systems Incorporated Bolted aluminium shoring frame
GB2193286B (en) * 1986-07-11 1990-05-30 Scaffolding Improvements in or relating to a frame for a falsework support system
DE3641349C5 (de) * 1986-12-03 2004-02-12 Friedr. Ischebeck Gmbh Baustütze
GB8915693D0 (en) * 1989-07-08 1989-08-31 Kwikform Ltd Gkn Formwork system
US5031724A (en) * 1989-12-29 1991-07-16 James E. Wright Shoring frame pillar
FR2658874B1 (fr) * 1990-02-26 1992-05-15 Roux Marcel Dispositif a machoires perfectionne pour l'assemblage d'elements tubulaires.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001170B3 (de) * 2007-01-05 2008-07-03 Dingler, Gerhard Anschlusselement zur Befestigung einer Aussteifung an einem Innenrohr einer teleskopierbaren Baustütze und teleskopierbare Baustütze mit einem solchen Anschlusselement
WO2008080377A1 (de) 2007-01-05 2008-07-10 Gerhard Dingler Anschlusselement zur befestigung einer aussteifung an einem innenrohr einer teleskopierbaren baustütze und teleskopierbare baustütze mit einem solchen anschlusselement

Also Published As

Publication number Publication date
EP0694659A2 (de) 1996-01-31
EP0553665A1 (de) 1993-08-04
EP0694659B1 (de) 1999-08-25
DE4201958A1 (de) 1993-08-05
DE59302538D1 (de) 1996-06-20
JP2601610B2 (ja) 1997-04-16
EP0694659A3 (enrdf_load_stackoverflow) 1996-03-06
ES2140598T3 (es) 2000-03-01
US5388666A (en) 1995-02-14
JPH0642166A (ja) 1994-02-15
ATE183799T1 (de) 1999-09-15
DE59309750D1 (de) 1999-09-30
ES2090717T3 (es) 1996-10-16
ATE138149T1 (de) 1996-06-15

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