EP2405081A2 - Improvements in props for construction work - Google Patents

Improvements in props for construction work Download PDF

Info

Publication number
EP2405081A2
EP2405081A2 EP11183443A EP11183443A EP2405081A2 EP 2405081 A2 EP2405081 A2 EP 2405081A2 EP 11183443 A EP11183443 A EP 11183443A EP 11183443 A EP11183443 A EP 11183443A EP 2405081 A2 EP2405081 A2 EP 2405081A2
Authority
EP
European Patent Office
Prior art keywords
tubular member
plate
props
plates
prop
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.)
Withdrawn
Application number
EP11183443A
Other languages
German (de)
French (fr)
Other versions
EP2405081A3 (en
Inventor
Jose Luis Ubiñana Felix
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.)
Sistemas Tecnicos de Encofrados SA
Original Assignee
Sistemas Tecnicos de Encofrados SA
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 Sistemas Tecnicos de Encofrados SA filed Critical Sistemas Tecnicos de Encofrados SA
Publication of EP2405081A2 publication Critical patent/EP2405081A2/en
Publication of EP2405081A3 publication Critical patent/EP2405081A3/en
Withdrawn legal-status Critical Current

Links

Images

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
    • E04G25/00—Shores or struts; Chocks
    • 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
    • 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
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • 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
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut
    • 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
    • E04G2025/006—Heads therefor, e.g. pivotable
    • 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
    • E04G2025/042—Shores or struts; Chocks telescopic with devices to avoid accidental disengagement of the telescopic elements, e.g. during transport

Definitions

  • the aim of this divisional application is to protect improvements in the props for construction work concerning the upper and lower plates of the telescopic tubular member forming the prop.
  • the upper and lower plates attached to the extremities of the tubular body of the prop are secured simply by means of cold deformation of the material of the plate and tubular member by cold deformation by cramping and swaging.
  • the improvements refer to the formation of a fold at the top and bottom ends of the prop, avoiding welding, which is at the present time the usual way of securing the upper and lower plates of a prop with a tubular body. Said welding operations are rather expensive and to ensure the proper results the welding should be submitted to costly inspection processes.
  • the present invention provides a particular form of direct pressing of each plate onto the corresponding tubular member.
  • the bottom and top plates of the prop have respective central openings in which the corresponding ends of the tubular members are firmly secured by cold cramping deformation and pressing forming a cramped zone of substantially doughnut structure, cramped at the edge of the central opening of each plate, supplemented with an outwardly transversely bent zone in the form of a flange bearing against the upper area of the edge formed at the central opening of the plate.
  • This makes it possible to apply loads between each plate and the corresponding tube.
  • the present invention permits the plates for the bottom and top part of the prop to be formed without any need for welding and with great strength and durability.
  • the improvements of the present invention are aimed at the safe securement of the bottom and top plates of a prop by cold deformation operations, which permits dispensing with the usual welding operations presently known in the props according to the state of the art.
  • FIG. 2 shows the bottom part of a tubular member (1) comprising a base plate (21) having a central opening in which the bottom end of tubular member (1) is fitted by cold cramping deformation and pressing forming a cramped zone (22) of substantially doughnut structure cramped at the edge (23) of the central opening end plate (21), supplemented with an outwardly transversely bent zone in the form of a flange (24) which bears against the upper zone of the said edge (23), making it possible to apply loads between the plate and the tube.
  • the base plates can be formed without any need for welding and with great strength and durability.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Supports For Pipes And Cables (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Ladders (AREA)
  • Mechanical Control Devices (AREA)

Abstract

The improvements in construction props provide the formation of the foot and the top part of the prop by means of plates pressed directly to the corresponding tubular member being the plates featured by cold-cramping deformation and pressing forming a cramp zone of substantially doughnut structure cramped at the edge of the central opening of the corresponding plate.

Description

  • The present Patent application is a divisional application of EP 1 602 791 A2 filed on 26/05/2005 .
  • The aim of this divisional application is to protect improvements in the props for construction work concerning the upper and lower plates of the telescopic tubular member forming the prop.
  • According to this invention, the upper and lower plates attached to the extremities of the tubular body of the prop are secured simply by means of cold deformation of the material of the plate and tubular member by cold deformation by cramping and swaging. The improvements refer to the formation of a fold at the top and bottom ends of the prop, avoiding welding, which is at the present time the usual way of securing the upper and lower plates of a prop with a tubular body. Said welding operations are rather expensive and to ensure the proper results the welding should be submitted to costly inspection processes. To prevent these drawbacks now present in the props for construction according to the state of the art, the present invention provides a particular form of direct pressing of each plate onto the corresponding tubular member. The bottom and top plates of the prop have respective central openings in which the corresponding ends of the tubular members are firmly secured by cold cramping deformation and pressing forming a cramped zone of substantially doughnut structure, cramped at the edge of the central opening of each plate, supplemented with an outwardly transversely bent zone in the form of a flange bearing against the upper area of the edge formed at the central opening of the plate. This makes it possible to apply loads between each plate and the corresponding tube. The present invention permits the plates for the bottom and top part of the prop to be formed without any need for welding and with great strength and durability.
  • The formation of the securement of both bottom and top plates by cold deformation to the corresponding tubular members of the prop is technically the same, although its position in space will be inverted as the bottom plate is aimed at engaging the ground and the upper plate is aimed at engaging an upper structure such as a beam or similar.
  • To better understand the invention, drawings of a preferred embodiment are appended by way of an explanatory but not restrictive example.
    • Figure 1 shows a perspective view of a prop constructed according to this invention.
    • Figure 2 shows a detailed cross-section of the base of the prop.
  • The improvements of the present invention are aimed at the safe securement of the bottom and top plates of a prop by cold deformation operations, which permits dispensing with the usual welding operations presently known in the props according to the state of the art.
  • The improvements in construction props to which this invention relates provide for the formation of the foot (19) and the top part (20) of the same in a new and rational way which makes it possible to avoid welding, through plates pressed directly onto the tubular member, as may be seen in detail in Figure 2 which shows the bottom part of a tubular member (1) comprising a base plate (21) having a central opening in which the bottom end of tubular member (1) is fitted by cold cramping deformation and pressing forming a cramped zone (22) of substantially doughnut structure cramped at the edge (23) of the central opening end plate (21), supplemented with an outwardly transversely bent zone in the form of a flange (24) which bears against the upper zone of the said edge (23), making it possible to apply loads between the plate and the tube. Through this arrangement the base plates can be formed without any need for welding and with great strength and durability.
  • As will be understood, the invention is not limited to the embodiment as shown, but it will cover as well the variations which an expert in the matter may derive from the present disclosure within the limits of the following claims.

Claims (2)

  1. Improvements in props for construction work characterised in that both the top and bottom base members (19,20) are each constructed of plates (21) attached to the extremities of the corresponding tubes (1,8) by cold cramping and deformation.
  2. Improvements according to claim 1 characterised in that each plate (21) has a central opening onto which the extremity of the tubular member (1,8) is conformed into a partly doughnut shape (22), a flange (24) formed by transverse deformation of the tubular member (1,8) by transverse bending, coinciding with the upper part of the edge (23) of the said central opening in order to permit axial pressure between the tubular member and the plate.
EP11183443A 2004-06-03 2005-05-26 Improvements in props for construction work Withdrawn EP2405081A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200401355A ES2224889B1 (en) 2004-06-03 2004-06-03 POINT FOR WORKS.
EP05380107.2A EP1602791B1 (en) 2004-06-03 2005-05-26 Prop for construction work

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP05380107.2 Division 2005-05-26
EP05380107.2A Division-Into EP1602791B1 (en) 2004-06-03 2005-05-26 Prop for construction work

Publications (2)

Publication Number Publication Date
EP2405081A2 true EP2405081A2 (en) 2012-01-11
EP2405081A3 EP2405081A3 (en) 2012-06-13

Family

ID=34354876

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05380107.2A Active EP1602791B1 (en) 2004-06-03 2005-05-26 Prop for construction work
EP11183443A Withdrawn EP2405081A3 (en) 2004-06-03 2005-05-26 Improvements in props for construction work

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05380107.2A Active EP1602791B1 (en) 2004-06-03 2005-05-26 Prop for construction work

Country Status (3)

Country Link
EP (2) EP1602791B1 (en)
ES (3) ES2224889B1 (en)
PL (1) PL1602791T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2224889B1 (en) 2004-06-03 2006-03-16 Ingenieria De Encofrados Y Servicios, S.L. POINT FOR WORKS.
ATE515609T1 (en) * 2007-03-29 2011-07-15 Ulma C Y E S Coop SUPPORT WITH FORMULATION MECHANISM
ES2288805B1 (en) * 2007-05-11 2008-09-01 Sistemas Tecnicos De Encofrados, S.A POINT FOR WORKS.
ES2284414B1 (en) 2007-05-11 2008-06-16 Sistemas Tecnicos De Encofrados, S.A. "PANEL FOR THE WALLING OF WALLS AND PILLARS".
ES2304901B1 (en) * 2008-04-09 2009-05-21 Sistemas Tecnicos De Encofrados, S.A. POINT FOR WORKS.
NL2002800C2 (en) * 2009-04-24 2010-10-26 Scafom Internat B V BUILDING STAMP.
WO2022034493A1 (en) * 2020-08-10 2022-02-17 Peri Ag Adjustable telescopic steel prop assembly having push-pull action
EP4227478A1 (en) * 2022-02-10 2023-08-16 Macc Strut that can be locked by an automatic locking system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602791A2 (en) 2004-06-03 2005-12-07 Ingenieria de Encofrados y Servicios, S.L. Prop for construction work

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1356174A (en) * 1964-06-26 Pin for locking in relation to each other two tubes sliding telescopically one inside the other
BE536147A (en) * 1954-03-24
FR1257814A (en) * 1960-02-25 1961-04-07 telescopic tube prop without threads
FR1301502A (en) * 1961-08-16 1962-08-17 tubular prop
FR1307935A (en) * 1961-08-21 1962-11-03 Batimetal New adjustable forestay
FR1534097A (en) * 1967-06-16 1968-07-26 Double acting cylinder
FR2188648A7 (en) * 1972-06-09 1974-01-18 Loeb Sa
DE7636864U1 (en) * 1976-11-24 1977-03-03 Huennebeck Gmbh, 4030 Ratingen HEIGHT ADJUSTABLE SUPPORT
AU563985B2 (en) * 1983-04-26 1987-07-30 Acrow Pty. Limited Prop pin
FR2628466A1 (en) * 1988-03-09 1989-09-15 Rennepont Sa Adjustable length stay for scaffolding etc. - comprises inner tube moving telescopically on outer shaft, with threaded sleeve for fine adjustment
DE3910344A1 (en) * 1989-03-30 1990-10-04 Peri Werk Schwoerer Kg Artur LENGTH VARIABLE TELESCOPIC SUPPORT
GB9028031D0 (en) * 1990-12-24 1991-02-13 New Phase Products Limited Support element
FR2681108B1 (en) * 1991-09-10 1993-12-10 Sacem TELESCOPIC SHAFT PROVIDED WITH MEANS OF BRAKING THE MOVEMENT OF THE SLIDER IN RELATION TO THE FUT.
DE4329910A1 (en) * 1993-09-04 1995-03-09 Mueller & Baum Vertically adjustable support for a floor shuttering
FR2712017B1 (en) * 1993-11-02 1996-01-12 Rennepont Safety device for stays.
ES1028234Y (en) * 1994-06-07 1995-05-16 Perez Pedro Garcia DETACHING DEVICE ON TELESCOPIC PROPS FOR WORKS.
JP2851608B2 (en) * 1996-11-06 1999-01-27 株式会社三共 Pipe connector
ES2139493B1 (en) * 1997-01-15 2004-12-01 Ingenieria De Encofrados Y Servicios, S.L. PUNCH FOR SHIPS.
ES2140280B1 (en) * 1997-01-23 2001-02-16 Ingenieria Encofrados Servi Sl DEVICE FOR THE DOWNLOAD OF POINTS.
EP0854255B1 (en) * 1997-01-15 2002-05-08 Ingenieria de Encofrados y Servicios, S.L. A strut for supporting formwork
JP2003301818A (en) * 2002-04-08 2003-10-24 Ochiai:Kk Connecting tool
DE10228479B4 (en) * 2002-06-26 2004-06-09 Peri Gmbh Support for the construction area

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1602791A2 (en) 2004-06-03 2005-12-07 Ingenieria de Encofrados y Servicios, S.L. Prop for construction work

Also Published As

Publication number Publication date
PL1602791T3 (en) 2017-10-31
EP1602791A2 (en) 2005-12-07
ES2270737B1 (en) 2008-02-16
EP1602791B1 (en) 2016-03-09
ES2270737A1 (en) 2007-04-01
EP1602791A3 (en) 2007-01-10
ES2573535T3 (en) 2016-06-08
EP2405081A3 (en) 2012-06-13
ES2224889B1 (en) 2006-03-16
ES2224889A1 (en) 2005-03-01

Similar Documents

Publication Publication Date Title
EP2405081A2 (en) Improvements in props for construction work
CN109204576A (en) Body construction
EP2508411A1 (en) Structure
KR101557623B1 (en) Impact guard beam
EP1903163B1 (en) Purlin beam comprising attachable ends
US9085284B2 (en) Adapter for windshield wiper assembly
CA2616168C (en) Semitrailer landing gear
JP6188287B2 (en) Telescopic tube fixing device
JP5609042B2 (en) Crane boom and method of manufacturing crane boom
US20070108367A1 (en) Curved concrete formwork
JP2004203279A (en) Joint with wedge type insertion material
EP1508459A1 (en) Connection between round vehicle axle and suspension arm
JP4428701B2 (en) Scaffold plate support bracket
EP1947052A2 (en) Arrangement at telescopic lifting beams
CN206510739U (en) Vehicle
EP1972736B1 (en) System comprising a beam, a corrugated sheet and a connector
US20050140131A1 (en) Motor vehicle frame rail strengthening system
JP5031643B2 (en) Cross member and cross member unit manufacturing method
CN101877985A (en) Support to be riveted for a handle
JP4175645B2 (en) Carport
EP0311811B1 (en) Central pivot ball joint with a sealing bellows for a triangular suspension arm in an automotive vehicle
WO2012053987A2 (en) Multiple vertex joint adapter
CN207496781U (en) A kind of automobile B-column inner supporting structure
KR200393483Y1 (en) handle structure for oil pressure jack
CN207846863U (en) Steel rib reinforced concrete structure

Legal Events

Date Code Title Description
AC Divisional application: reference to earlier application

Ref document number: 1602791

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR IT PL PT

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR IT PL PT

RIC1 Information provided on ipc code assigned before grant

Ipc: E04G 25/06 20060101AFI20120508BHEP

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121214