EP0106492A2 - Hakenförmige Verlängerung für ein Gerüstteil - Google Patents

Hakenförmige Verlängerung für ein Gerüstteil Download PDF

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Publication number
EP0106492A2
EP0106492A2 EP83305175A EP83305175A EP0106492A2 EP 0106492 A2 EP0106492 A2 EP 0106492A2 EP 83305175 A EP83305175 A EP 83305175A EP 83305175 A EP83305175 A EP 83305175A EP 0106492 A2 EP0106492 A2 EP 0106492A2
Authority
EP
European Patent Office
Prior art keywords
tube
hook
hooked
scaffolding member
elongate scaffolding
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.)
Ceased
Application number
EP83305175A
Other languages
English (en)
French (fr)
Other versions
EP0106492A3 (de
Inventor
Kenneth Edgar Richardson
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.)
KENRICH GROUP HOLDINGS PLC
Original Assignee
KENRICH GROUP HOLDINGS PLC
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 KENRICH GROUP HOLDINGS PLC filed Critical KENRICH GROUP HOLDINGS PLC
Publication of EP0106492A2 publication Critical patent/EP0106492A2/de
Publication of EP0106492A3 publication Critical patent/EP0106492A3/de
Ceased 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
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • 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
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/22—Stiff scaffolding clamps for connecting scaffold members of common shape for scaffold members in end-to-side relation
    • 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

Definitions

  • This invention relates to a hooked elongate scaffolding member.
  • Hooked elongate scaffolding members are well known. They either have a hook at one end or at both ends of a tube.
  • the hooked elongate scaffolding members serve a wide variety of purposes including acting as scaffolding and staging braces and acting as structural support members forming part of staging platforms.
  • the hooks of the scaffolding members tend to get damaged if misused or abused.
  • the scaffolding members must then be returned to the manufacturer for repair. This is inconvenient to the user and, since the hooks are welded to the tubes, it is relatively time consuming and costly for the manufacturer to cut off the damaged hooks and to weld on new hooks.
  • this invention provides a hooked elongate scaffolding member comprising a tube and a hook, the hook being releasably secured to one end of the tube by a bayonet connection.
  • the elongate scaffolding member is one in which the hook has a grooved shank constituting one portion of the bayonet connection, and in which the interior of the tube is provided with a pair of projections which constitute the other portion of the bayonet connection, the projections in the tube fitting in the grooves in the grooved shank.
  • the reverse arrangement may be employed in which the interior of the tube is grooved and the shank of the hook is provided with the pair of projections but this alternative arrangement is less easy to manufacture and it would have a disadvantage in increasing the overall diameter of the tube, preventing other hooked elongate scaffolding members being fitted onto that portion of the tube.
  • the hooked elongate scaffolding member will include releasable locking means for releasably locking the tube and the hook together.
  • the locking means is advantageously a pair of screws.
  • the screws may extend through apertures in the tube and may locate in a threaded bush provided in a shank of the hook. Preferably the screws will be located opposite each other.
  • the elongate scaffolding member may be one in which each end of the tube is provided with one of the hooks, each of the hooks being secured to the tube by the bayonet connection. If only one end of the tube is provided with the hook, then the other end of the tube may be provided with, for example, a ring coupler.
  • a hooked elongate scaffolding member 2 comprising a tube 4 and a hook 6.
  • the hook 6 is provided with a hooked end 8 which is provided with a reinforcing web 10 which is designed to help prevent the hooked end 8 being deformed. It will appreciated that if the hooked end 8 deforms inwardly then the aperture 12 will not be sufficiently large to hook over a scaffolding tube (not shown).
  • the hook 6 is further provided with a shank 14 and the shank 14 is provided with a pair of right angled grooves 16, 18 which are positioned diametrically opposite to each other as shown.
  • the shank 14 is tubular as can best be seen from Figure 2.
  • the shank 14 has a shoulder 20 against which the tube 4 abuts as it passes over the grooves 16, 18.
  • the tube 4 is provided with a pair of inwardly directed projections 22, 24 for engaging in the groove 16, 18 respectively.
  • These projections 22, 24 may be formed in the tube 4 using a hydraulic or a fly press. It will be appreciated that the projections 22, 24 engage in the grooves 16, 18 respectively such that the projections are first pushed in a straight line along the first part of the grooves and then either the tube 4 or the hook 6 will be turned through 90° to complete the bayonet connection and locate the projections 22, 24 in the ends of their grooves 16, 18. The hook 6 will then be positively but releasably secured by the bayonet connection to the tube 4.
  • the tubular shank 14 is provided with a threaded bush 26, see Figure 3.
  • the bush 26 is located across the shank 14 so that two screws can then be passed through apertures (not shown) in the tube 4 and into the threaded bush 26.
  • the screws thus form releasable locking means for ensuring that the bayonet connection constituted by the grooves 16, 18 and the projections 22, 24 does not become prematurely released.
  • the user merely has to undo the screws and turn the hook 6 through 90° with respect to the tube 4 to release the bayonet connection.
  • the hook 6 can then be removed from the tube 4 and a new hook 6 can be inserted in the end of the tube 4.
  • the bayonet connection can then be remade and the screws inserted again in the bush 26 that will be in the new hook 6.
  • the screw heads can be arranged to be flush in the tube 4 or they can project from the tube 4.
  • the hook 6 is thus very easily renewed and this can be done by a user of the hook, for example on site. There is no need to cut off the hook 6 as would be previously the case and to weld a new hook 6 in position.
  • a hook 6 may be provided at both ends of the tube 4.
  • other locking means such as self-tapping screws or nuts and bolts may be employed instead of the screws and the bush, although the screws and the bush 26 are preferred since they make a flush fitting connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
EP83305175A 1982-09-27 1983-09-06 Hakenförmige Verlängerung für ein Gerüstteil Ceased EP0106492A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8227471 1982-09-27
GB8227471 1982-09-27

Publications (2)

Publication Number Publication Date
EP0106492A2 true EP0106492A2 (de) 1984-04-25
EP0106492A3 EP0106492A3 (de) 1985-07-10

Family

ID=10533175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83305175A Ceased EP0106492A3 (de) 1982-09-27 1983-09-06 Hakenförmige Verlängerung für ein Gerüstteil

Country Status (2)

Country Link
EP (1) EP0106492A3 (de)
GB (1) GB2127888B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002086255A1 (en) * 2001-04-18 2002-10-31 Pluseight Technology Ab Hook holder for holding scaffolding elements to a scaffold

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111851969A (zh) * 2020-06-22 2020-10-30 芜湖青悠静谧环保科技有限公司 一种用于建筑施工的脚手架

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB338856A (en) * 1929-08-16 1930-11-17 Scaffolding Great Britain Ltd Improvements in or connected with means for connecting tubes together
GB643507A (en) * 1947-11-19 1950-09-20 John Smith & Co London E Ltd Improvements in or relating to structural elements comprising connected tubular members
US2793888A (en) * 1955-04-19 1957-05-28 Harvey L Bartholomew Rod and fixture connector
GB908454A (en) * 1959-05-12 1962-10-17 Jarnforadlings Vasterviksfabri Improvements in or relating to hook elements
GB906835A (en) * 1960-02-05 1962-09-26 Thomas Ltd Martin Improvements in or relating to latching devices
DE1434434A1 (de) * 1961-02-13 1968-11-07 Thyssen Roehren & Roheisen Loesbare Verbindung von horizontalen Laengsriegelelementen,insbesondere von Geruestbuehnenrahmen,an die Stiele eines Geruestes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002086255A1 (en) * 2001-04-18 2002-10-31 Pluseight Technology Ab Hook holder for holding scaffolding elements to a scaffold
US7229055B2 (en) 2001-04-18 2007-06-12 Pluseight Technology Ab Hook holder for holding scaffolding elements to a scaffold

Also Published As

Publication number Publication date
EP0106492A3 (de) 1985-07-10
GB2127888B (en) 1985-11-20
GB8323859D0 (en) 1983-10-05
GB2127888A (en) 1984-04-18

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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): BE CH DE FR IT LI NL SE

17P Request for examination filed

Effective date: 19840613

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): BE CH DE FR IT LI NL SE

17Q First examination report despatched

Effective date: 19860814

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19871129

RIN1 Information on inventor provided before grant (corrected)

Inventor name: RICHARDSON, KENNETH EDGAR