US20020109070A1 - Shoring post extrusion - Google Patents

Shoring post extrusion Download PDF

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Publication number
US20020109070A1
US20020109070A1 US10/038,249 US3824902A US2002109070A1 US 20020109070 A1 US20020109070 A1 US 20020109070A1 US 3824902 A US3824902 A US 3824902A US 2002109070 A1 US2002109070 A1 US 2002109070A1
Authority
US
United States
Prior art keywords
projections
projection
channel
shoring
body member
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.)
Abandoned
Application number
US10/038,249
Other languages
English (en)
Inventor
Robert McCracken
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.)
Wilian Holding Co
Original Assignee
Wilian Holding Co
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 Wilian Holding Co filed Critical Wilian Holding Co
Priority to US10/038,249 priority Critical patent/US20020109070A1/en
Assigned to WILIAN HOLDING COMPANY reassignment WILIAN HOLDING COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MCCRACKEN, ROBERT G.
Publication of US20020109070A1 publication Critical patent/US20020109070A1/en
Abandoned 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
    • E04G7/30—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
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/308—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect without tying means for connecting the bars or members
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • 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
    • E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
    • E04G7/307—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect with tying means for connecting the bars or members

Definitions

  • the invention relates generally to shoring apparatus used in forming concrete structures and, more specifically, to an extruded post having a profile which makes it adaptable for use in a variety of shoring apparatus.
  • Concrete forming apparatus is in wide use in the construction of buildings, bridges, and other concrete structures.
  • the formwork against which the concrete is formed is often held in place by shoring apparatus.
  • shoring post which has a profile that includes channels or the like which may be engaged by clamps or other engagement apparatus associated with other shoring apparatus components.
  • An engagement apparatus of this type is described in U.S. Pat. No. 5,713, 687, which also shows but does not describe a shoring post which presents a profile that is adapted for clamping engagement by the coupling which is the subject of the patent.
  • the shoring posts be strong yet light in weight so they are easily transportable and positionable by workers in assembling, moving, and disassembling the shoring apparatus.
  • Another demand is that the shoring posts be inexpensive to manufacture yet durable so that they are economical to use.
  • the invention consists of an extrusion having a particular profile useful as shoring posts in the assembly of shoring apparatus.
  • the extrusion is of a generally hollow, tubular shape and includes at least a pair of mirrored projections that extend from the outer periphery of the extrusion over a substantial length of the extrusion.
  • the mirrored projections form a central channel that is of a generally C-shape in transverse cross-section.
  • the outer periphery of the extrusion between the projections is substantially planer and forms the web of the C-shaped channel.
  • a substantially planer section of each of the projections extends generally radially at either side of the web portion.
  • An in-turned lip of each of the projections completes the generally C-shaped channel of the extrusion.
  • the projections also form a pair of opposing clamping channels on the side of each projection outside of the C-shaped channel formed between the projections.
  • the clamping channel has three sections, a base section which is the outer circumferencial periphery of the extrusion in the area of the base of the projection, a primary engagement surface that slopes radially outwardly and at the same time generally inwardly toward the C-shaped channel at the base of the projection adjacent the base portion, and a retaining lip which extends from said engagement surface generally outwardly away from the interior C-shaped channel.
  • the C-shaped channel is adapted to receive the head of a bolt that is commonly used in the construction of the shoring apparatus so that the bolt is constrained to move within the channel along a line parallel to the longitudinal axis of the shoring post and which can be releasably secured at any desired position by a suitable nut.
  • the C-shaped channel further is adapted to receive the head of a lock bolt which may be introduced into the channel when in its unlocked orientation but, once positioned, can be pivoted to its locked position wherein it securely engages the sides of the C-shaped channel whereupon it is locked into place.
  • the clamping channels are adapted to receive the jaws of a clamp that is used for interconnecting other components of the shoring apparatus at adjusted positions along the length of the shoring post.
  • the extrusion is formed with eight of the projections arranged in four pairs that are symmetrically placed about the circumferential periphery of the extrusion.
  • An object of the invention is to provide an extruded shoring post that is adapted to serve as a means of attachment of various components of a shoring apparatus.
  • Another object of the invention is to provide an extruded shoring post having a profile which is suitable for engagement by both clamping-type connectors as well as bolt-type connectors.
  • a further object of the invention is to provide an extruded shoring post that is strong, lightweight, durable, and economical to manufacture.
  • FIG. 1 is an elevational view of a shoring apparatus incorporating shoring posts of the present invention and being used to support concrete forming apparatus.
  • FIG. 2 is a cross-sectional view taken along line 2 - 2 of FIG. 1.
  • FIGS. 3 a - 3 b are sectional views of the shoring post of the present invention and a clamp for engaging the shoring post shown in a locked and unlocked position.
  • FIG. 4 is an enlarged detailed view of a cross-section of the shoring post showing the extrusion profile.
  • FIG. 5 is an enlarged detailed view of a portion of FIG. 4.
  • FIG. 6 is an enlarged, detailed view of the generally C-shaped channel formed between a co-acting pair of projections of the extrusion and showing a bolt head received within the channel.
  • FIG. 1 there is illustrated in FIG. 1, generally at 10 , a shoring apparatus for supporting concrete forms such as the beams 12 and 14 .
  • the shoring apparatus 10 includes a plurality of shoring posts 16 , each of which is supported on a bottom jack 18 and has extended from its upper end section a top jack 20 .
  • the shoring posts 16 are of a fixed length but the total height of the shoring apparatus 10 is adjustable by rotation of a plurality of wing nuts 22 that are threaded about the bottom jacks 18 and top jacks 20 and which abut against the ends of the shoring posts 16 .
  • One or more horizontally disposed panels 24 may be interconnected between adjacent shoring posts 16 to provide added strength to the shoring apparatus 10 and also to provide means for supporting a platform or the like upon which workers who assemble the shoring apparatus 10 , the associated concrete forming apparatus, pouring of concrete contained by the forms, and stripping of the forms after the concrete has set. As illustrated in FIG. 2, a common configuration uses four shoring posts 16 that are interconnected by four panels 24 .
  • the panels 24 are interconnected with the vertical shoring posts 16 at any desired position along the length of the shoring posts 16 by a plurality of clamping members 26 .
  • the clamping members 26 are secured to the ends of the crossbars of the panels 24 and are adapted to be releasably clamped at adjusted positions on the shoring posts 16 .
  • the shoring post 16 is formed by extrusion and has the profile shown in detail in FIGS. 36.
  • the extrusion includes a plurality of projections that are arranged in co-acting pairs about the circumferential periphery of the extrusion, one co-acting pair of which is projection 30 and 32 .
  • four pairs of co-acting projections are arranged about the circumferential periphery of the shoring post 16 at right angles to each other (FIG. 4).
  • Each of the projections runs parallel to the longitudinal axis of the shoring post 16 and extends substantially the entire length of the shoring post 16 .
  • projection 30 forms a clamping channel 34 which may be engaged by a fixed jaw 36 or a moveable jaw 40 of the clamp 26 .
  • the projection 32 is a mirror image of the projection 30 , i.e., the profile of projection 30 forms the profile of projection 32 when it is reflected about the plane common to the central longitudinal axis of the shoring post 16 and a point midway between any corresponding points of the projections 30 and 32 .
  • projection 32 includes a clamping channel 38 that is identical to but reversed in orientation to the clamping channel 34 of the projection 30 .
  • Clamping channel 38 is adapted to receive in clamping engagement therewith a fixed jaw 36 or a movable jaw 40 of the clamp 26 .
  • the co-acting pairs of projections 30 and 32 also form a central channel 42 that is of a generally C-shape in transverse cross section.
  • the central channel 42 is sized to accept for longitudinal sliding movement therein the head of a bolt 44 (FIG. 6) such as that which is commonly used in the assembly of shoring apparatus.
  • the head of the bolt 44 is inserted into the central channel 42 at the opening thereto that is at either end of the shoring post 16 .
  • the bolt 44 may then be slid to any desired position within the central channel 42 and then releasably secured into place by the attachment of a nut (not shown) in the conventional manner.
  • the head of a locking bolt may be aligned with the opening between the in-turned flanges of the central channel 42 and then pivoted to its locked position wherein it engages the sidewalls of the central channel 42 in the usual fashion.
  • the projection 30 includes a substantially flat central channel surface 50 that is disposed parallel to the line of symmetry and extends from a base or web portion 52 formed in the outer periphery of the extrusion.
  • An inward-turned flange 54 is positioned at the outer end portion of the wall 50 and includes a lip portion 56 that is substantially parallel with the base 52 .
  • a terminal face 58 which is also substantially parallel to the base 52 , extends outwardly from the inner surface of the flange 54 .
  • the outer profile of the projection 30 includes a clamping engagement surface 60 that extends from the outer circumferential periphery of the extrusion inwardly and radially outwardly.
  • An outwardly-turned flange 62 is formed at the upper end of the clamping engagement surface 60 .
  • the flange 62 , the clamping engagement surface 60 and the outer periphery of the extrusion combine to form the clamping channel 34 .
  • the base portions of 52 and 52 ′ are co-planar and form the web section of the central channel 42 . Accordingly, the interior surface of the substantially C-shaped central channel 42 is formed by the surfaces 56 , 50 , 52 , 52 ′, 50 ′ and 56 ′.
  • the shoring post 16 has an inner diameter of 3.6 inches and a mean outer diameter measured between co-acting pairs of projections 30 and 32 of 3.931 inches.
  • the total width of the shoring post 16 that is the distance between opposing pairs of the terminal faces 58 and 58 ′ is 4.9 inches.
  • the length of faces 50 and 50 ′ are 0.375 inches and the web of the central channel 52 has a width of 0.75 inches.
  • the lip 56 extends inwardly by a distance of 0.0935 inches.
  • the clamping engagement surface 60 has a width of 0.020 inches and is disposed at an angle of 70 degrees relative to the plane of symmetry between co-acting pairs of projections 30 and 32 .
  • the shoring post 16 is formed of extruded 6005-T5 aluminum alloy and includes a series of three grooves separated by two lands which run parallel between each co-acting pair of projections, with each land and groove subtending an angle of 7 degrees and the grooves being 0.016 inches lower than the lands (FIG. 5).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Body Structure For Vehicles (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Supports For Pipes And Cables (AREA)
US10/038,249 2000-03-13 2002-01-03 Shoring post extrusion Abandoned US20020109070A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/038,249 US20020109070A1 (en) 2000-03-13 2002-01-03 Shoring post extrusion

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US52448100A 2000-03-13 2000-03-13
US10/038,249 US20020109070A1 (en) 2000-03-13 2002-01-03 Shoring post extrusion

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US52448100A Continuation 2000-03-13 2000-03-13

Publications (1)

Publication Number Publication Date
US20020109070A1 true US20020109070A1 (en) 2002-08-15

Family

ID=24089381

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/038,249 Abandoned US20020109070A1 (en) 2000-03-13 2002-01-03 Shoring post extrusion

Country Status (10)

Country Link
US (1) US20020109070A1 (de)
EP (1) EP1134333B1 (de)
AR (1) AR035170A1 (de)
AT (1) ATE288528T1 (de)
BR (1) BR0100959A (de)
CA (1) CA2340505C (de)
DE (1) DE60108674D1 (de)
MX (1) MXPA01002596A (de)
MY (1) MY127197A (de)
PE (1) PE20011106A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070056798A1 (en) * 2005-09-14 2007-03-15 Feng-Jui Lee Fire shelter with an escape ladder
US20070137797A1 (en) * 2005-12-15 2007-06-21 Darren Long Upright post with mounting collar
CN100439632C (zh) * 2003-01-29 2008-12-03 李渊河 内墙模板施工方法及其装置
US20230151625A1 (en) * 2018-08-28 2023-05-18 Les Produits Fraco Ltee Assembly for erecting and dismantling a common tower adjacent a building structure and a method of erecting and dismantling the same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193286B (en) * 1986-07-11 1990-05-30 Scaffolding Improvements in or relating to a frame for a falsework support system
FR2655393B1 (fr) * 1989-12-05 1992-04-10 Roux Marcel Dispositif d'assemblage d'equerre entre des elements tubulaires.
US5263296A (en) * 1991-07-17 1993-11-23 Speral Aluminium Inc. Modular scaffolding assembly
DE4407469C2 (de) 1994-03-05 1997-08-07 Peri Gmbh Kupplung zum Verbinden von Gerüstteilen
TW329446B (en) * 1996-04-29 1998-04-11 Syma Intercontinental Sa Profiled beam and clamping profile for profiled beams
CA2249921C (en) * 1997-10-10 2006-10-10 George W. Jackson Modular shoring frame and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100439632C (zh) * 2003-01-29 2008-12-03 李渊河 内墙模板施工方法及其装置
US20070056798A1 (en) * 2005-09-14 2007-03-15 Feng-Jui Lee Fire shelter with an escape ladder
US20070137797A1 (en) * 2005-12-15 2007-06-21 Darren Long Upright post with mounting collar
US7530540B2 (en) * 2005-12-15 2009-05-12 Haworth, Ltd. Upright post with mounting collar
US20230151625A1 (en) * 2018-08-28 2023-05-18 Les Produits Fraco Ltee Assembly for erecting and dismantling a common tower adjacent a building structure and a method of erecting and dismantling the same

Also Published As

Publication number Publication date
EP1134333B1 (de) 2005-02-02
MXPA01002596A (es) 2004-03-09
PE20011106A1 (es) 2001-10-18
CA2340505A1 (en) 2001-09-13
AR035170A1 (es) 2004-05-05
ATE288528T1 (de) 2005-02-15
CA2340505C (en) 2007-02-06
BR0100959A (pt) 2001-10-30
EP1134333A1 (de) 2001-09-19
MY127197A (en) 2006-11-30
DE60108674D1 (de) 2005-03-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WILIAN HOLDING COMPANY, IOWA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MCCRACKEN, ROBERT G.;REEL/FRAME:012797/0717

Effective date: 20020306

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION