EP1302435B1 - Flèche télescopique à haute résistance - Google Patents

Flèche télescopique à haute résistance Download PDF

Info

Publication number
EP1302435B1
EP1302435B1 EP01830652.2A EP01830652A EP1302435B1 EP 1302435 B1 EP1302435 B1 EP 1302435B1 EP 01830652 A EP01830652 A EP 01830652A EP 1302435 B1 EP1302435 B1 EP 1302435B1
Authority
EP
European Patent Office
Prior art keywords
section
telescopic arm
segments
straight
straight segments
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.)
Revoked
Application number
EP01830652.2A
Other languages
German (de)
English (en)
Other versions
EP1302435A1 (fr
Inventor
Guelfo Ganzarolli
Luca Perelli
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.)
Hiab Italia Srl
Original Assignee
Effer SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8184739&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1302435(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Effer SpA filed Critical Effer SpA
Priority to ES01830652.2T priority Critical patent/ES2670924T3/es
Priority to TR2018/07546T priority patent/TR201807546T4/tr
Priority to EP01830652.2A priority patent/EP1302435B1/fr
Priority to DK01830652.2T priority patent/DK1302435T3/en
Publication of EP1302435A1 publication Critical patent/EP1302435A1/fr
Application granted granted Critical
Publication of EP1302435B1 publication Critical patent/EP1302435B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0803—Making tubes with welded or soldered seams the tubes having a special shape, e.g. polygonal tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes

Definitions

  • the present invention relates to a high-strength telescopic arm, in particular for mobile cranes, and a process for making the arm.
  • mobile cranes for example mounted on vehicles, have a telescopic arm which can easily be transported in the fully retracted home position and which, in operating conditions can extend to great heights, to lift and move heavy loads.
  • the weight is attached to the end of the crane arm and the arm is subjected mainly to a bending load.
  • the arm section must be of a size which guarantees a safety margin in the presence of the maximum tractive and compression stresses allowed, respectively in the upper and lower zones of the section.
  • a hexagonal section made using high-strength materials does not give the best results in terms of weight, dimensions, cost, rigidity, bending strength, shearing strength, resistance to normal stresses and buckling.
  • a greatly reduced thickness may lead to instability in the shape of the lower panels of the arm, subject to compression, and in the side panels subject to bending and shearing, according to a phenomenon known to experts in the field as buckling of panels with a thin section.
  • This section comprises an upper portion in the shape of an inverted U, formed from a flat upper wall and two side walls extending from top to bottom of the end margins of the upper wall, and a lower portion, welded to the upper portion, having a concave - convex wall, with greater thickness and consisting of adjacent arced segments arranged in sequence.
  • the aim of the present invention is, therefore, to overcome the above-mentioned disadvantages.
  • the aim of the present invention is to provide a telescopic arm with good resistance to shape instability and whose weight is contained.
  • the aim of the present invention is also to provide a telescopic arm which is easy to produce.
  • Another aim of the present invention is to provide a rapid, economical process for the production of a telescopic arm of the above-mentioned type.
  • US 4171597 discloses a crane boom whose telescopic sections have top and bottom flanges and side webs that are provided of a thinner plate than the flanges.
  • the segments at the lower compressed part of the section are only three in number with the flat wider and thicker flange which takes most of the resistance of the section in respect to buckling.
  • GB 2342603 is relating to a manufacturing method for angled steel pipe in which the transversal section of the post member finally resulting from the process disclosed is quadrangular in shape.
  • the numeral 1 denotes a telescopic arm for mobile cranes.
  • the telescopic arm 1 comprises a plurality of coaxial tubes 2 which form the trunks of the arm 1. They have sections 3 with steadily decreasing sizes and are inserted inside one another.
  • the tubes 2 can slide relative to one another and, thanks to suitable drive means, which are not illustrated, can move the arm 1 from the home position to the operating position and vice versa.
  • Each tube 2 consists of a plurality of panels 4 which form the side wall of the tube 2.
  • a generic cross-section 3 of each tube 2 is, therefore, formed by a plurality of straight segments 5 arranged in sequence.
  • Each straight segment 5 has a length b and thickness t1, t2 and is connected to the next segment 5 at one end 6a and to the previous segment 5 at the opposite end 6b, so as to form a closed polygonal section 3.
  • two adjacent segments 5 form an angle ⁇ facing the inside of the section 3 which is less than one hundred and eighty degrees, therefore, the internal edge 7 of the section 3 consists of a concave line.
  • the number of straight segments 5, and therefore the number of panels 4 which form each tube 2 is between seven and ten.
  • the section 3 preferably has an axis of symmetry Y, therefore the segments 5 of which it consists are distributed symmetrically relative to the axis Y.
  • the segments 5 of each section all have the same thickness t1.
  • the ratio between the thickness t1 and length b of the sides of the section is preferably such that it allows a similar safety margin relative to the strength of the zones subject to normal, shearing and bending stresses (that is to say, the sides in particular) and resistance to shape instability (that is to say, buckling).
  • each tube 2 which is part of the telescopic arm 1 is made from a single rectangular sheet 8 of metal with constant thickness t1, also making construction of the sections particularly economical.
  • the sheet of metal 8 is deformed along fold lines 9 parallel with the longitudinal edges 10 of the sheet 8, which are substantially the same length as the tube 2 to be made.
  • the folds are made in such a way as to bring the two longitudinal edges 10 together, until they are touching.
  • Each fold line 9 on the metal sheet 8 delimits two adjacent panels 4 forming dihedral angles ⁇ less than one hundred and eighty degrees or, similarly in a section of metal sheet 8 at a right angle to the longitudinal edges 10, two straight segments 5 of the section 3.
  • the process comprises between seven and ten folding steps. Finally, the edges 10, which are touching, are joined by welding.
  • the section 3 consists of seven straight segments 5, arranged symmetrically relative to an axis of symmetry Y of the section 3 which coincides with the main direction of application of the loads.
  • This seven-sided section 3 is obtained by folding the metal sheet 8 along seven parallel lines 9 to obtain six complete segments 5 and two half-segments 5a, 5b.
  • a second embodiment which is not a part of the invention, illustrated in Figure 5 comprises a section 3 consisting of eight straight segments 5, again arranged symmetrically relative to an axis of symmetry Y of the section 3.
  • the eight-sided section 3 is obtained by folding the metal sheet 8 along eight parallel lines 9 to obtain seven complete segments 5 and two half-segments 5a, 5b.
  • the two half-segments 5a, 5b are brought together and welded along the edges, keeping them in the same plane, so as to form a single segment 5, with a weld seam 11 on the axis of symmetry Y of the section 3.
  • a third embodiment, illustrated in Figure 6 comprises a section 3 consisting of nine straight segments 5, again arranged symmetrically and made using the same procedure as was used for the first two.
  • a fourth embodiment, illustrated in Figure 7 consists of ten segments.
  • the section 3 is obtained by folding the metal sheet 8 along nine parallel lines 9 to obtain ten complete segments 5.
  • the end segments 5 are brought together at a given angle ⁇ and welded along the edges 10a, 10b, leaving the weld seam 11 on the edge.
  • the folding process which is common to all of the embodiments mentioned, is carried out by placing the metal sheet 8 on a die 12 and pressing it along the fold lines 9 with a punch or knife 13.
  • a first set of folds is made in succession, starting from one longitudinal edge 10 towards the inside of the metal sheet, then moving on to a second set, starting from the opposite longitudinal edge 10 and continuing as far as the final fold of the first set.
  • knife 13 can be removed after the last fold, from the gap left by the metal sheet 8 between the two longitudinal edges 10 which are almost touching.
  • Figures 12 to 20 illustrate the folding sequence used to obtain a 10-sided section.
  • the sides are labelled with capital letters from "A” to "J” and are obtained by folding first the right-hand part of the section ( Figures 12 - 15 ), then the left-hand part of the section ( Figures 16 - 19 ), then making a central fold on the side opposite the gap left by the metal sheet.
  • the knife 13 can be removed after the final fold has been made, from the gap left by the metal sheet between the two longitudinal edges which are almost touching. Moreover, since it is straight, the knife 13 is more economical than curved knives and can be used for all sections, whether large or small, because special knife curved shapes are not required for its removal from the profile being folded.
  • the part 14b of the section 3 which supports mainly compression loads can be made with a segment 5 thickness t2 greater than the segment 5 thickness t1 for the remaining part 14a, designed to resist only tractive and shearing loads.
  • At least two of the straight segments 5 have a thickness t2 which is different to the thickness t1 of the remaining segments 5. Therefore, around half of the section 3, considered along the axis of symmetry Y, in an embodiment illustrated in Figure 8 which is not a part of the invention, consists of sheet metal which is thicker than in the other half.
  • the section 3 in the above-mentioned embodiment is obtained from a pair of metal sheets 8a, 8b.
  • Each metal sheet in the pair 8a, 8b is folded along a plurality of fold lines 9, in accordance with the above-mentioned process, without bringing the longitudinal edges 10a, 10b of each sheet 8a, 8b together, but leaving the distance between the two edges 10a of the first sheet 8a equal to the distance between the two edges 10b of the second sheet 8b.
  • the sum of the fold lines 9 on the first and second sheets 8a, 8b must be between five and ten. Therefore, the two sheets 8a, 8b are brought together so that the longitudinal edges 10a of the first sheet and those 10b of the second sheet are touching, forming the tube 2 with polygonal cross-section.
  • edges 10a, 10b of the two sheets 8a, 8b are then welded together.
  • the weld seam 11 is on the lower part of the section 3, subject to compression, because it enhances its stress resistance characteristics.
  • Figures 21 and 22 illustrate two embodiments of crane arm sections, one a six-sided section 15 of the known type, and the other a ten-sided section 16 in accordance with the present invention.
  • Both sections 15, 16 have maximum dimensions within a rectangle labelled 27 which has a width of 305 mm and height of 450 mm. Both sections have the same vertical plane bending inertia coefficient (W - 759 cm 3 ) and the same resistance to buckling.
  • section 15 The overall dimensions of section 15 are height 477.5 mm and width 235 mm.
  • the sides 15a are 288 mm long and the upper and lower sides 15b are 103 mm long.
  • the radius of the sides is 21 mm.
  • section 16 The overall dimensions of section 16 are height 409.4 mm and width 304 mm.
  • the sides 16a are 273 mm long and are at a 115 degree angle to the upper and lower external sides 16b, which are 70 mm long.
  • the external sides 16b in turn are at an angle of 162° 30' to the upper and lower internal sides 16c.
  • the latter sides 16c are at an angle of 165 degrees to one another at the centre line of the section 16.
  • the length of the sides 16c is such that it allows the obtainment of a section 16 with an overall width of 304 mm and is substantially 53 mm.
  • sections 15 and 16 are made using a high-strength material, marketed as Weldox 1100, a registered trade-mark of the company SSAB Oxelosund AB, which has a yield strength of 1100 MPA (N/mm 2 ).
  • section 15 is optimised in such a way that a thickness of at least 7 mm is required to obtain sufficient resistance to yielding and buckling.
  • section 16 is optimised in such a way that a thickness of just 6 mm is required to obtain sufficient resistance to yielding and buckling similar to those of section 15.
  • the 6 mm thickness is sufficient to obtain a similar safety coefficient against buckling of the section sides subjected to normal, shearing and bending stresses.
  • the example also shows how the ten-sided section is around 7% lighter, the area of the ten-sided section being 73.9 cm 2 , compared with 79.6 cm 2 for the area of the six-sided section.
  • the ten-sided section is also 17% more resistant to bending on the horizontal plane, because the ten-sided section is wider, despite remaining within the dimensions of the design in the example.
  • Another possible use for the sections disclosed relates to materials with lower yield strength values, of around 300 - 400 MPA (N/mm 2 ).
  • the present invention brings important advantages. Firstly, the entire section of the telescopic arm in accordance with the present invention allows a reduction in the thicknesses and, therefore, the weight of the arm.
  • the section disclosed guarantees a good safety margin relative to possible instability in the zones which are compressed and those subjected to bending and shearing, because it allows a similar safety coefficient relative both to strength and to the tendency to buckle.
  • the entire process is fast because the time required for the moulding step, during which the metal sheet is folded, is less than the time necessary to obtain semi-finished products with a curved section and two or more weld seams.
  • the process in accordance with the present invention therefore, allows production to be speeded up, with the consequent limitation of costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Vehicle Body Suspensions (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Claims (4)

  1. Flèche télescopique à haute résistance, comprenant une pluralité de sections coaxiales (3) dotées de dimensions décroissantes constantes et étant insérées à l'intérieur des unes et des autres et pouvant coulisser les unes par rapport aux autres et qui, grâce à des moyens d'entraînement appropriés, peuvent déplacer la flèche (1) de la position initiale à la position de fonctionnement et vice versa ; chaque section (3) comprenant, en section transversale, une partie supérieure (3a), une partie inférieure (3b) et des parties latérales (3c, 3d) entre elles ; chaque section (3) comprenant une pluralité de segments rectilignes (5) disposés en séquence ; chaque segment rectiligne (5) ayant une longueur (b), une épaisseur (t1) et deux extrémités (6a, 6b) ; chaque extrémité (6a, 6b) de chaque segment rectiligne (5) étant reliée à une extrémité (6a, 6b) d'une section rectiligne adjacente (5) pour former une section fermée (3) ; caractérisée en ce que tous les segments rectilignes (5) ont la même épaisseur (t1) ; en ce qu'elle ne comprend également, sur la partie inférieure de la section soumise à compression, qu'un joint de soudure (11) joignant deux segments rectilignes adjacents (5) ou deux demi segments (5a, 5b), formant un unique segment, (5) et prévus sur l'axe de symétrie (Y) de la section ; en ce que le nombre de segments rectilignes (5) de la partie inférieure de la section est égal ou supérieur à trois ; et en ce qu'elle est complètement fabriquée à partir d'un matériau ayant une limite d'élasticité supérieure à 800 MPA (N/mm2).
  2. Flèche télescopique à haute résistance selon la revendication 1, caractérisée en ce que le nombre de segments rectilignes (5) est compris entre sept et dix.
  3. Flèche télescopique à haute résistance selon l'une quelconque des revendications précédentes, caractérisée en ce que deux segments rectilignes adjacents (5) forment un angle (α) opposé à l'intérieur de la section fermée (3) étant inférieur ou égal à cent quatre-vingts degrés.
  4. Flèche télescopique à haute résistance selon l'une quelconque des revendications précédentes, caractérisée en ce que les segments rectilignes (5) sont disposés symétriquement par rapport à un axe de symétrie (Y) de la section (3) dans son plan.
EP01830652.2A 2001-10-16 2001-10-16 Flèche télescopique à haute résistance Revoked EP1302435B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES01830652.2T ES2670924T3 (es) 2001-10-16 2001-10-16 Brazo telescópico de alta resistencia
TR2018/07546T TR201807546T4 (tr) 2001-10-16 2001-10-16 Yüksek dayanımlı bir teleskopik kol.
EP01830652.2A EP1302435B1 (fr) 2001-10-16 2001-10-16 Flèche télescopique à haute résistance
DK01830652.2T DK1302435T3 (en) 2001-10-16 2001-10-16 High-strength telescopic arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01830652.2A EP1302435B1 (fr) 2001-10-16 2001-10-16 Flèche télescopique à haute résistance

Publications (2)

Publication Number Publication Date
EP1302435A1 EP1302435A1 (fr) 2003-04-16
EP1302435B1 true EP1302435B1 (fr) 2018-03-07

Family

ID=8184739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830652.2A Revoked EP1302435B1 (fr) 2001-10-16 2001-10-16 Flèche télescopique à haute résistance

Country Status (4)

Country Link
EP (1) EP1302435B1 (fr)
DK (1) DK1302435T3 (fr)
ES (1) ES2670924T3 (fr)
TR (1) TR201807546T4 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004031618D1 (de) * 2003-06-30 2011-04-14 Hitachi Construction Machinery Verfahren für die herstellung eines arbeitsarms einer baumaschine.
ITMO20040009A1 (it) * 2004-01-16 2004-04-16 Manitou Costr Ind Srl Braccio telescopico per carrello elevatore.
MX2010002602A (es) * 2007-09-05 2010-03-31 Palfinger Ag Forma de perfil para un brazo de grua.
CA2697299A1 (fr) * 2007-09-05 2009-03-12 Palfinger Ag Forme profilee pour bras de grue
DE102010010008A1 (de) * 2010-03-02 2011-09-08 Ferro Umformtechnik Gmbh & Co. Kg Verfahren zur Herstellung eines geschweißten Hohlprofils sowie geschweißtes Hohlprofil
IT201800007213A1 (it) * 2018-07-16 2020-01-16 Carlo Rosso Braccio telescopico e veicolo semovente provvisto di tale braccio
EP3722246A1 (fr) * 2019-04-08 2020-10-14 Cargotec Patenter AB Section de flèche de grue télescopique, flèche de grue télescopiquement extensible et grue hydraulique
CN113353818B (zh) * 2021-04-22 2024-01-02 武汉船用机械有限责任公司 伸缩臂的制作方法
CN114160621A (zh) * 2021-12-20 2022-03-11 江苏神通阀门股份有限公司 一种地坑过滤器滤筒折弯方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65647A5 (de) 1966-06-30 1969-02-20 Gottwald Kg Leo Teleskopartig ein- und ausfahrbarer kranausleger
US4171597A (en) 1976-01-29 1979-10-23 Coles Cranes Limited Crane boom and telescopic section for it
EP0376414A1 (fr) 1988-12-23 1990-07-04 Albert Fabius Bras-support
JPH0572887U (ja) 1992-03-11 1993-10-05 新明和工業株式会社 多段ブーム
JPH0940380A (ja) 1995-07-28 1997-02-10 Aichi Corp 多角形ブーム
JPH11158908A (ja) 1997-12-02 1999-06-15 Kubota Corp 作業機のブーム構造及びブーム部材の製造方法
GB2343174B (en) 1997-07-15 2001-10-31 Komatsu Mfg Co Ltd Boom of bucket type excavator and producing method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4459786A (en) * 1981-10-27 1984-07-17 Ro Corporation Longitudinally bowed transversely polygonal boom for cranes and the like
DE19624312C2 (de) * 1996-06-18 2000-05-31 Grove Us Llc Teleskopausleger für Fahrzeugkrane
GB2342603B (en) * 1997-01-30 2000-09-20 Nakajima Steel Pipe Co Ltd Manufacturing method for angled steel pipes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD65647A5 (de) 1966-06-30 1969-02-20 Gottwald Kg Leo Teleskopartig ein- und ausfahrbarer kranausleger
US4171597A (en) 1976-01-29 1979-10-23 Coles Cranes Limited Crane boom and telescopic section for it
EP0376414A1 (fr) 1988-12-23 1990-07-04 Albert Fabius Bras-support
JPH0572887U (ja) 1992-03-11 1993-10-05 新明和工業株式会社 多段ブーム
JPH0940380A (ja) 1995-07-28 1997-02-10 Aichi Corp 多角形ブーム
GB2343174B (en) 1997-07-15 2001-10-31 Komatsu Mfg Co Ltd Boom of bucket type excavator and producing method thereof
JPH11158908A (ja) 1997-12-02 1999-06-15 Kubota Corp 作業機のブーム構造及びブーム部材の製造方法

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
"Big boom for a new crane", NEW SCIENTIST, 21 February 1980 (1980-02-21), pages 569, XP055535267
"Grobblech - Herstellung und Anwendung", STAHL BROSCHURE - DOKUMENTATION 570, pages 1 - 110
.: "50 Argumente die für Palfinger sprechen", PALFINGER FLYER
HAMME ET AL: "Einsatz hochfester Baustähle im Mobilkranbau", STAHLBAU, vol. 69, no. 4, 2000, pages 1 - 11, XP055535254
HELLER ET AL.: "Moderne hochfeste Stähle im Nutzfahrzeug- und Mobilkranbau - Herstellung, Verarbeitung und Anwendung", ATZ AUTOMOBILTECHNISCHE ZEITSCHRIFT, vol. 100, no. 9, 1998, pages 664 - 668, XP055535248
HUBER: "Tragfähigkeit von Teleskopen", FORDERN UND HEBEN, vol. 22, no. 3, 1972, pages 125 - 127, XP009065538

Also Published As

Publication number Publication date
ES2670924T3 (es) 2018-06-04
TR201807546T4 (tr) 2018-06-21
EP1302435A1 (fr) 2003-04-16
DK1302435T3 (en) 2018-06-14

Similar Documents

Publication Publication Date Title
EP1302435B1 (fr) Flèche télescopique à haute résistance
CN101194075B (zh) 建筑物墙板和建筑物结构
US20070113614A1 (en) Techniques for designing and manufacturing precision-folded, high strength, fatigue-resistant structures and sheet therefor
KR20170017993A (ko) 구조적 요소
US20060207212A1 (en) Precision-folded, high strength, fatigue-resistant structures and sheet therefor
CN105569185A (zh) 高强度凹凸槽型钢连接房屋
US4238550A (en) Dunnage bar and method of making it
CN101426987A (zh) 箱形断面型薄板部件的抗纵弯曲加劲构造
JP5902882B2 (ja) クレーン用、特に移動式クレーン用の伸縮ジブ
CN102209822A (zh) 一种加强筋
CN105015300A (zh) 组合拉杆轴和用于制造扭转型材的方法
US3039414A (en) Method of producing hollow four-sided tapering beams or columns from sheet metal
CN206495320U (zh) 牛腿结构、立柱及钢结构框架
EP1840075A1 (fr) Partie d'avant-bras de grue télescopique doté de segments transversaux courbés de manière plus diminuée et de manière plus renforcée au niveau de la partie de profil supérieure et de la partie de profil inférieure
US6978907B2 (en) Telescopic jib for a vehicular crane
CN102245461B (zh) 车辆的车桥支座及其制造方法
CN1400875A (zh) 架子
CN104675145A (zh) 一种浇筑混凝土楼板及梁底模板支撑体系
US4619131A (en) Method for bending sheets
US20200018058A1 (en) Structural support member with swaged female interface
CN204590655U (zh) 浇筑混凝土楼板及梁底模板支撑体系
GB2411183A (en) Bar for reinforced concrete
JPH0913744A (ja) 支 柱
CN106760202B (zh) 内部叉状连接凹凸槽方矩管组合柱
EP2140952B1 (fr) Procédé de formation à rouleaux d'une structure de support vertical d'un rayonnage à palettes

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20031016

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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

Owner name: EFFER HOLDING S.P.A.

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

Owner name: EFFER HOLDING S.P.A.

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

Owner name: SOL.GE. S.P.A.

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

Owner name: EFFER S.P.A.

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20170512

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20171023

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 60150783

Country of ref document: DE

Owner name: EFFER S.R.L., IT

Free format text: FORMER OWNER: EFFER S.P.A., CASTELMAGGIORE, BOLOGNA, IT

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 976321

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 60150783

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2670924

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20180604

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20180606

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUGNION S.A., CH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180307

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180608

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 60150783

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

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

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180709

26 Opposition filed

Opponent name: PALFINGER AG

Effective date: 20181130

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180307

Ref country code: LU

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

Effective date: 20181016

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: IE

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

Effective date: 20181016

REG Reference to a national code

Ref country code: AT

Ref legal event code: UEP

Ref document number: 976321

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180307

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

Ref country code: NL

Payment date: 20201027

Year of fee payment: 20

Ref country code: TR

Payment date: 20201007

Year of fee payment: 20

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

Ref country code: AT

Payment date: 20201021

Year of fee payment: 20

Ref country code: CH

Payment date: 20201023

Year of fee payment: 20

Ref country code: DK

Payment date: 20201023

Year of fee payment: 20

Ref country code: SE

Payment date: 20201023

Year of fee payment: 20

Ref country code: FR

Payment date: 20201027

Year of fee payment: 20

Ref country code: FI

Payment date: 20201021

Year of fee payment: 20

Ref country code: GB

Payment date: 20201027

Year of fee payment: 20

Ref country code: IT

Payment date: 20201022

Year of fee payment: 20

Ref country code: ES

Payment date: 20201117

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20201029

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: VIA IV NOVEMBRE 12, 40061 MINERBIO (BO) (IT)

Ref country code: CH

Ref legal event code: PFA

Owner name: EFFER S.R.L., IT

Free format text: FORMER OWNER: EFFER S.P.A., IT

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60150783

Country of ref document: DE

Representative=s name: MANITZ FINSTERWALD PATENT- UND RECHTSANWALTSPA, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 60150783

Country of ref document: DE

Owner name: EFFER S.R.L., IT

Free format text: FORMER OWNER: EFFER S.P.A., ROVERTO, IT

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: EFFER S.R.L.

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

Ref country code: DE

Payment date: 20201228

Year of fee payment: 20

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: EFFER S.R.L.

REG Reference to a national code

Ref country code: BE

Ref legal event code: HC

Owner name: EFFER S.R.L.; IT

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF OWNER(S) NAME; FORMER OWNER NAME: EFFER S.P.A.

Effective date: 20210629

REG Reference to a national code

Ref country code: AT

Ref legal event code: HC

Ref document number: 976321

Country of ref document: AT

Kind code of ref document: T

Owner name: EFFER S.R.L., IT

Effective date: 20210825

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 60150783

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Expiry date: 20211016

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20211015

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: EFFER S.R.L.; IT

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), CHANGE OF LEGAL ENTITY; FORMER OWNER NAME: EFFER S.P.A.

Effective date: 20210928

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20211015

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20211016

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 976321

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211016

RAP4 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: HIAB ITALIA S.R.L.

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220126

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20211015

R26 Opposition filed (corrected)

Opponent name: PALFINGER AG

Effective date: 20181130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R103

Ref document number: 60150783

Country of ref document: DE

Ref country code: DE

Ref legal event code: R064

Ref document number: 60150783

Country of ref document: DE

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20211017

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

27W Patent revoked

Effective date: 20220517

REG Reference to a national code

Ref country code: AT

Ref legal event code: MA03

Ref document number: 976321

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220517