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1. WO2014167043 - METHOD FOR STRENGTHENING AND CALIBRATING A PIPE SEGMENT

Publication Number WO/2014/167043
Publication Date 16.10.2014
International Application No. PCT/EP2014/057242
International Filing Date 10.04.2014
IPC
B21D 41/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
41Application of procedures in order to alter the diameter of tube ends
02Enlarging
B21D 41/04 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
41Application of procedures in order to alter the diameter of tube ends
04Reducing; Closing
E04G 25/04 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
25Shores or struts; Chocks
04telescopic
E04G 25/06 2006.01
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
25Shores or struts; Chocks
04telescopic
06with parts held together by positive means
CPC
B21C 1/22
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
1Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
16Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
22specially adapted for making tubular articles
B21D 3/16
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
3Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
16of specific articles made from metal rods, tubes, or profiles, e.g. crankshafts, by specially adapted methods or means
B21D 41/00
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
41Application of procedures in order to alter the diameter of tube ends
B21D 41/026
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
41Application of procedures in order to alter the diameter of tube ends
02Enlarging
026by means of mandrels
B21H 3/02
BPERFORMING OPERATIONS; TRANSPORTING
21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
3Making helical bodies or bodies having parts of helical shape
02external screw-threads ; ; Making dies for thread rolling
E04G 17/14
EFIXED CONSTRUCTIONS
04BUILDING
GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
17Connecting or other auxiliary members for forms, falsework structures, or shutterings
14Bracing or strutting arrangements for formwalls; Devices for aligning forms
Applicants
  • PERI GMBH [DE]/[DE]
Inventors
  • ANDREE, Jürgen
  • SPECHT, Rudolf
Agents
  • KOHLER SCHMID MÖBUS PATENTANWÄLTE
Priority Data
10 2013 206 577.912.04.2013DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN ZUR FESTIGUNG UND KALIBRIERUNG EINES ROHRABSCHNITTES
(EN) METHOD FOR STRENGTHENING AND CALIBRATING A PIPE SEGMENT
(FR) PROCÉDÉ DE CONSOLIDATION ET DE CALIBRAGE D'UN SEGMENT DE TUBE
Abstract
(DE)
Die Erfindung betrifft ein Verfahren und eine Vorrichtung (60) zur Herstellung eines Außenrohrs (12) einer Teleskopstütze sowie die Teleskopstütze und das darin enthaltene Außenrohr (12). Das Außenrohr (12) kann aus Gewichts- und Stabilitätsgründen aus einem standardisierten verzinkten Stahlrohr mit großem Außendurchmesser und geringer Wandstärke hergestellt werden. Ein Rohrabschnitt (76) des Außenrohrs (12) wird in dem Verfahren mit einem Stempel (62) geweitet und anschließend mit einem Ring (64) wieder auf den ursprünglichen Außendurchmesser verjüngt. Hierdurch wird eine Festigung des Rohrabschnitts (76) und eine Kalibrierung des Außendurchmessers des Rohrabschnitts (76) erreicht. Ein Außengewinde (36) kann auf den Rohrabschnitt (76) aufgerollt werden.
(EN)
The invention relates to a method and a device (60) for producing an outer pipe (12) of a telescopic support, to the telescopic support, and to the outer pipe (12) contained by the telescopic support. For reasons of weight and stability, the outer pipe (12) can be produced from a standardization galvanized steel pipe having a large outside diameter and small wall thickness. In the method, a pipe segment (76) of the outer pipe (12) is expanded by means of a die (62) and then narrowed back to the original outside diameter by means of a ring (64). A strengthening of the pipe segment (76) and a calibration of the outside diameter of the pipe segment (76) can thereby be achieved. An external thread (36) can be rolled onto the pipe segment (76).
(FR)
L'invention concerne un procédé et un dispositif (60) de fabrication d'un tube extérieur (12) d'un support télescopique ainsi que le support télescopique et le tube extérieur (12) contenu à l'intérieur de celui-ci. Le tube extérieur (12) peut, pour des raisons de poids et de stabilité, être fabriqué à partir d'un tube d'acier zingué normalisé qui présente un grand diamètre extérieur et une faible épaisseur de paroi. Dans le procédé, un segment (76) du tube extérieur (12) est élargi à l'aide d'un poinçon (62) puis à nouveau rétréci à son diamètre extérieur initial à l'aide d'une bague (64). L'invention permet de consolider le segment de tube (76) et de calibrer son diamètre extérieur. Un filetage mâle (36) peut être formé par roulage sur le segment de tube (76).
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