EP0058042A1 - Dispositif pour fixer un élément au montant d'une structure porteuse - Google Patents

Dispositif pour fixer un élément au montant d'une structure porteuse Download PDF

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Publication number
EP0058042A1
EP0058042A1 EP82300533A EP82300533A EP0058042A1 EP 0058042 A1 EP0058042 A1 EP 0058042A1 EP 82300533 A EP82300533 A EP 82300533A EP 82300533 A EP82300533 A EP 82300533A EP 0058042 A1 EP0058042 A1 EP 0058042A1
Authority
EP
European Patent Office
Prior art keywords
wall
shank
screw jack
combination
handle
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Withdrawn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
EP82300533A
Other languages
German (de)
English (en)
Inventor
George Wilbert Jackson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0058042A1 publication Critical patent/EP0058042A1/fr
Withdrawn legal-status Critical Current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
    • E04G5/00—Component parts or accessories for scaffolds
    • E04G5/16—Struts or stiffening rods, e.g. diagonal rods
    • 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
    • E04G5/02—Scaffold feet, e.g. with arrangements for adjustment
    • 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

Definitions

  • This invention relates to support structures (for example, shoring, trusses and fly forms) useful in the forming of concrete slabs and structural component parts forming part of these support structures.
  • British patent specification 2 041 059A discloses an improved support system and components therefor comprising shoring formed by more than one section surmounted one over the other, which shoring incorporates cross-bracing for bracing the sections.
  • the bracing is fastened to the shoring by Jet Lock (Trade Mark) fasteners removably secured to a housing wall welded to, and spaced from, the vertical legs of the shoring by a nut screwed onto the threaded shank of the fastener.
  • Jet Lock Trade Mark
  • securing the nut to the shank of the fastener between the vertical legs and housing wall requires manipulation of the nut in a confined space--a waste of valuable time and effort. - .
  • each screw jack comprising a screw jack nut fitted into the lower end of each of the vertical legs for adjusting and levelling the leg into which it is fitted.
  • the support structures e.g. trusses or fly forms
  • they are usually lifted causing the screw jacks to fall out, if they are not tied in the truss or fly form as by chain or the like. If not, when the trusses or fly forms are repositioned, the screw jack must be reinserted--more time and effort wasted.
  • a housing secured to a leg of a support structure comprising a wall spaced from the leg and having an aperture therethrough, the housing opening from opposite directions, (preferably opposite vertical directions) a body for securing to the wall, the body having, upper and lower portions, a shank portion extending from one end thereof for projecting through the aperture of the wall with the upper portion of the body over the lower portion, and a wall engaging a ledge or flange between the body and shank portion for abutting the wall of the housing when the shank portion is inserted through the aperture, the shank portion including at least one sloped surface extending transverse the shank and sloping from the upper portion to the lower portion toward the ledge or flange, and a wedge having at least one complementary sloped co-operating surface corresponding to the at least one sloped surface, and having a thickness at substantially one end the distance between the wall and the at least one sloped surface when the shank is inserted through the aperture and the
  • a housing secured to a leg comprising a wall spaced from the leg and having an aperture therethrough, and opening in opposed directions (preferably opposite vertical directions), a body for securing to the wall, the body having a shank portion for projecting through the aperture in the wall and a head on the end of the shank of greater cross-section than the shank, the body having a wall engaging flange or ledge to engage the wall when the shank projects through the aperture in the wall to space the head from the wall, the head having at least one inner surface on a head portion at the end of the shank remote the body, sloped from a thin head portion to a thicker head portion towards the ledge or flange in a inwardly direction (and preferably a pair of opposed such surfaces of the same angle on either side of the shank portion), and a U-shaped wedge having two arms spaced by a distance equal to the cross-wise dimension of-the shank portion proximate the head for passing over the
  • shoring comprises vertical legs secured together by horizontal ledgers and bracing. Jet Lock (Trade Mark) fasteners may be supported on the legs for quickly and securing affixing the cross bracing.
  • the housing is U-shaped having a back wall having an aperture therethrough and two arms secured (in one embodiment welded) to the vertical legs of the shoring and preferably opening from the top and the bottom. The combination, according to the invention, is then employed to mount the Jet Lock (Trade Mark) fasteners quickly and securely to the legs.
  • each screw jack for securing to the bottom of the support structures, each screw jack comprising a screw jack nut, the screw jack nut having at least one step (for supporting legs of different diameters of shoring, scaffolding, or truss legs) and a handle spaced from the step of the nut closest the handle to provide a space between the handle and step, and means for securing the screw jack nut to the support structure, for example, shoring, scaffolding or truss, to permit full rotation of the screw jack nut with respect to the legs of the shoring, scaffolding or truss, the means'for securing the screw jack nut comprising means to secure the screw jack nut to the vertical legs of the support structures, including means to engage the screw jack nut vertically between the handle and the step closest the handle but not interfere with the full rotation of the screw jack nut
  • shoring or scaffolding can be made up of vertical legs and extension tubes extending therefrom, of different diameters
  • the screw jack nut in most instances will be stepped to provide a number of upper stepped support surfaces of different diameters'to correspond with the cross-wise dimensions of the various sized vertical legs and extension tubes.
  • These screw jack nuts may be used on top of the structure and secured in a similar manner as at the bottom.
  • a collar is provided having projections secured to the inner surface of the collar to be positioned in the holes and means, for example, a clamp, is provided to tighten the collar to the legs.
  • arms extend from the collar to extend to the screw jack nut and include inwardly projecting lips promixate their ends to project inwardly in the space between the handle and the step closest the handle to support the screw jack nut.
  • the support structures have similarly disposed holes through the legs
  • at least a pair of pins having arms at either end and extending in the same direction from the pin body are provided, one arm to be inserted in the space between the handle and step closest thereto and the other arm through a hole in the shoring, truss or scaffolding leg, and a collar is provided to fit over the pins to hold them and thus the screw jack nut to the shoring, scaffolding or truss leg.
  • an intermediate portion of the pin body is deformed in the direction that the arms extend to provide a recess in the surface of the body remote the arms.
  • Shoring or scaffolding 10 used to support forms during the pouring of concrete for forming a concrete floor (not shown).
  • Shoring or scaffolding 10 comprises two (2) sections 12 and 14 secured together by coupling pins 13 (not fully shown) secured in the legs between the vertically aligned sections and U-shaped security pins 16 shown in British patent specification 2 041 059A extending through holes 18 in the legs.
  • Screw jacks 20 secured on plates 22 are coupled to legs 24 by stepped screw jack nuts 26 each employing a pair of U-shaped pins 28 and collar shown in Figure 2 to lock each nut 26 into each leg 24.
  • threaded screw jack rod 32 is supported in plate 22, extends upwardly therefrom and, is threaded into stepped screw jack nut 26 which in turn is secured by pins 28 to each leg 24.
  • screw jack nut has three steps, 34, 36 and 38 (to support various sizes of legs or tubes) and a handle 40 spaced from step 34 closest to handle 40.
  • Each leg 24 has pairs of spaced diametrically opposed holes 42 therethrough.
  • Each pin 28 has a pair of arms 44 and 46 extending in the same direction transverse body 48 of each pin 28.
  • Body 48 is bent at 50 intermediate, and in the same direction as, arms 46 and 48.
  • Square collar 52 having round hole 54 is provided having diametrically opposed cut-outs 56 each being greater in cross-section than the cross section of pins 28.
  • collar 52 is slipped into each leg 24. Screw jack nuts 26 are then threaded onto threaded rods 32 and slipped into the ends of each leg. Each pin 28 is then positioned so that arm 46 extends below step 34 between step 34 and handle 40 and engages the underside of step 34, and arm 48 extends into one hole 42 (two pins 28 per screw jack nut 26). Therefore, each pin 28 is of a length equal to the distance between the space between the bottom of the step 34 and handle 40 and aperture 42. Collar 52 is then squeezed over each upper pin portion 56 (which yields inwardly) to become lodged in recess or depression 58 locking the pins in position to secure each screw jack nut 26 and thus each screw jack to the bottom of each leg 24.
  • handle 40 need only be rotated (as in Figure 3 relative to leg 24 and pins 28), to raise or lower the shoring or scaffolding on screw jack rod 32.
  • collar 60 is provided with inwardly directed opposed projections 62 for projecting through apertures 42 and clamp arms 64 to be drawn together by wing nut 68 tightened onto screw 66 for tightening collar 60 to each leg 24.
  • Depending arms 70 extend downwardly from collar 60 and have inwardly directed lips 72 at the ends thereof for positioning under step 34 in the space between handle 40 and lowermost step 34 for holding each screw jack nut 26 within each leg 24 when collar 60 is tightened onto leg 24.
  • shoring or scaffolding 10 comprising sections 12 and 14 is braced by cross-braces 80 angularly secured between legs 24.
  • Each leg 24 supports a U-shaped housing 82 comprising transverse wall 84 and arms 86 and 88 welded to each leg 24 (see Figure 7).
  • Hole 90 is cut through wall 84.
  • Housing 82 is open at the top and bot.tom.
  • Jet Lock (Trade Mark) fasteners 792 are secured to housing 82 to secure bracing 80, each fastener 792 comprising barrel 794 and spring loaded pin 96 normally urged to extend angularly the longitudinal axis of barrel 792 proximate one end 794 in an upwardly direction.
  • Annular flange 98 surrounds the other end of barrel 794 and is of greater outer diameter than the diameter of hole 90.
  • Shank 100 of a smaller diameter than barrel 794 extends axially of barrel 794 and has a head 102 on the end thereof of a lesser diameter than hole 90.
  • head 102 has been notched at opposed side edges in a vertical direction parallel to the upward orientation of pin 96 (see Figure 8) to provide sloped notched surfaces 104 and 106, sloping from the top to the bottom toward flange 98 at an angle of about 6 0 to the vertical.
  • U-shaped wedge 108 comprises top 110 and two spaced arms 112 and 114 spaced by a distance equal to the diameter of the shank less the notches.
  • Wedge 108 is thicker at the top 110 than at the bottom of the arms 112 and 114 and provides sloped surface 109 at an angle of about 6 0 to the vertical to abut surfaces 104 and 106. Wedge 108 is slightly longer than the height of wall 84 for the purpose of inserting and removing the wedge from the space between wall 84 and leg 24. As can be seen in Figures 6, 7 and 8, head 102 of fastener 792 is pushed through hole 90 into the space between leg 24 and wall 84 between side walls 86 and 88 until flange 98 abuts the outer surface of wall 84. At that point sloped surfaces 104 and 106 are spaced from the inner surface of wall 84.
  • the thickness of wedge 108 has been specifically chosen to be slightly less than this space between head 102 and wall 84 proximate the ends of arms 112 and 114 but of a greater thickness than this space proximate top 110 so that when the sloped surface 109 of wedge 108 is mated with sloped surfaces 104 and 106, and wedge 108 pushed downwardly, fastener 792 becomes wedged in housing 82. Because wedge 108 is longer than the height of wall 84, arms II? and 114 extend below housing 84 when top 110 is in its lowermost position on head 102, and wedge 108 can be removed by forcing the arms upwardly, as for example, by a hammer, quickly and efficiently for removing fastener 792 from housing 82.
EP82300533A 1981-02-06 1982-02-02 Dispositif pour fixer un élément au montant d'une structure porteuse Withdrawn EP0058042A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA370175 1981-02-06
CA370175 1981-02-06

Publications (1)

Publication Number Publication Date
EP0058042A1 true EP0058042A1 (fr) 1982-08-18

Family

ID=4119090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82300533A Withdrawn EP0058042A1 (fr) 1981-02-06 1982-02-02 Dispositif pour fixer un élément au montant d'une structure porteuse

Country Status (5)

Country Link
EP (1) EP0058042A1 (fr)
JP (1) JPS57201464A (fr)
AU (1) AU8019582A (fr)
NO (1) NO820332L (fr)
ZA (1) ZA82588B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476958A (en) * 1982-09-07 1984-10-16 Lawrence Stafford Safety device for scaffold
US4516661A (en) * 1982-09-07 1985-05-14 Stafford Lawrence R Safety device for scaffold
GB2167155A (en) * 1984-11-13 1986-05-21 Unerman Greenman Berger Ltd Knock-down fittings
GB2171165A (en) * 1985-02-12 1986-08-20 Blum Gmbh Julius Fastening device for adjustable front plates
EP0408210A2 (fr) * 1989-07-08 1991-01-16 Gkn Kwikform Limited Système de coffrage
GB2324329A (en) * 1997-04-15 1998-10-21 Sgb Services Plc Scaffold jack
GB2490941A (en) * 2011-05-19 2012-11-21 Nicholas James Marshall Frame support
CN114341448A (zh) * 2019-07-02 2022-04-12 J·J·梅利克 脚手架管夹具
CN114837096A (zh) * 2022-06-08 2022-08-02 无锡交通建设工程集团有限公司 重载支撑塔

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935739U (de) * 1965-12-02 1966-03-31 Rudolf Broesecke Fa Fussplatte mit hoehenausgleich fuer geruestrohre im stahlrohrgeruestbau.
GB1079653A (en) * 1965-03-05 1967-08-16 Access Equipment Ltd Adjustable leg for scaffolding and the like
US3835612A (en) * 1971-09-16 1974-09-17 Echafaudages Tublaires Mills S Scaffolding
GB1588942A (en) * 1978-01-03 1981-05-07 Access Plant Jacking device for a scaffolding structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079653A (en) * 1965-03-05 1967-08-16 Access Equipment Ltd Adjustable leg for scaffolding and the like
DE1935739U (de) * 1965-12-02 1966-03-31 Rudolf Broesecke Fa Fussplatte mit hoehenausgleich fuer geruestrohre im stahlrohrgeruestbau.
US3835612A (en) * 1971-09-16 1974-09-17 Echafaudages Tublaires Mills S Scaffolding
DE2237698B2 (fr) * 1971-09-16 1975-07-10 Societe Nouvelle Des Echafaudages Tubulaires Mills, Le Bourget (Frankreich)
GB1588942A (en) * 1978-01-03 1981-05-07 Access Plant Jacking device for a scaffolding structure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4476958A (en) * 1982-09-07 1984-10-16 Lawrence Stafford Safety device for scaffold
US4516661A (en) * 1982-09-07 1985-05-14 Stafford Lawrence R Safety device for scaffold
GB2167155A (en) * 1984-11-13 1986-05-21 Unerman Greenman Berger Ltd Knock-down fittings
GB2171165A (en) * 1985-02-12 1986-08-20 Blum Gmbh Julius Fastening device for adjustable front plates
EP0408210A2 (fr) * 1989-07-08 1991-01-16 Gkn Kwikform Limited Système de coffrage
GB2234776A (en) * 1989-07-08 1991-02-13 Kwikform Ltd Gkn Formwork support leg attachment for screw jack
EP0408210A3 (en) * 1989-07-08 1991-08-07 Gkn Kwikform Limited Formwork system
GB2234776B (en) * 1989-07-08 1993-04-07 Kwikform Ltd Gkn Formwork system
GB2324329A (en) * 1997-04-15 1998-10-21 Sgb Services Plc Scaffold jack
GB2490941A (en) * 2011-05-19 2012-11-21 Nicholas James Marshall Frame support
CN114341448A (zh) * 2019-07-02 2022-04-12 J·J·梅利克 脚手架管夹具
CN114837096A (zh) * 2022-06-08 2022-08-02 无锡交通建设工程集团有限公司 重载支撑塔

Also Published As

Publication number Publication date
ZA82588B (en) 1982-12-29
NO820332L (no) 1982-08-09
JPS57201464A (en) 1982-12-09
AU8019582A (en) 1982-08-12

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