WO2015009727A1 - Support d'attache de tiges - Google Patents

Support d'attache de tiges Download PDF

Info

Publication number
WO2015009727A1
WO2015009727A1 PCT/US2014/046707 US2014046707W WO2015009727A1 WO 2015009727 A1 WO2015009727 A1 WO 2015009727A1 US 2014046707 W US2014046707 W US 2014046707W WO 2015009727 A1 WO2015009727 A1 WO 2015009727A1
Authority
WO
WIPO (PCT)
Prior art keywords
cradle
rebar
rod clip
rod
leg
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
PCT/US2014/046707
Other languages
English (en)
Inventor
Russell Richard SMITH
David Marvin SMITH
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
Priority to US14/904,854 priority Critical patent/US20160153192A1/en
Publication of WO2015009727A1 publication Critical patent/WO2015009727A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/166—Connectors or means for connecting parts for reinforcements the reinforcements running in different directions
    • E04C5/167—Connection by means of clips or other resilient elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/168—Spacers connecting parts for reinforcements and spacing the reinforcements from the form

Definitions

  • the present invention generally relates to a means for arranging cylindrical elements in a grid or lattice configuration, and more particularly relates to a rod clip stand configured to releasably secure and retain a pair of rods in a perpendicular orientation, and optionally to locate the rods a distance spaced from an adjacent support surface.
  • the present invention is particularly well suited for fabricating a rebar grid used to reinforce concrete flatwork.
  • reinforcement bar or rebar for short is used as a tension device in reinforced concrete and reinforced masonry structures, to strengthen and hold the concrete in compression.
  • the surface of the rebar may be patterned to form a better bond with the concrete.
  • the rebar is often assembled into grid generally the dimension of the area to be formed with concrete. It is important that the rebar grid be elevated from the existing surface.
  • the present disclosure provides a clipping system for connecting, elevating and protecting cylindrical elements.
  • the clipping system includes a rod clip stand for assembling a pair of cylindrical elements.
  • the rod clip stand includes a cradle portion having a first cradle with a first concave surface formed therein and a second cradle laterally spaced from the first cradle with a second concave surface formed therein.
  • the cradle is configured to receive a first cylindrical element such as a rebar element.
  • the rod clip stand also includes an arched portion interconnecting the first and second cradles in a spaced relationship.
  • the arched portion has a third concaved surface formed at a crown of the arched portion and configured to receive a second cylindrical element such as another rebar element.
  • the third concave surface is generally perpendicular to the first and second concave surface such that the rebar elements are arranged in a generally perpendicular manner.
  • the clipping system may be used in various applications including but not limited to assembling and supporting rebar when fabricating concrete structures.
  • the present disclosure also provides an assembly forming a rebar grid with a plurality of rebar elements connected with a rod clip stand at the nodes of the grid.
  • the rod clip stand includes a cradle portion having a first cradle with a first concaved surface formed therein and a second cradle laterally spaced from the first cradle with a second concaved surface formed therein.
  • a first rebar element is supported in the first and second concave surfaces.
  • An arched portion interconnects the first and second cradles in a spaced relationship.
  • the arched portion has a third concaved surface formed at a crown of the arched portion.
  • the third concave surface is generally perpendicular to the first and second concave surface axis and supports a second rebar element.
  • a leg extends from the cradle portion opposite the arched portion.
  • the leg preferably includes a first leg extending from the first cradle and a second leg extending from the second cradle.
  • the rod clip stand couples the first rebar element to the second rebar element is generally perpendicular to on another.
  • the simple unitary design of the rod clip stand is lightweight and significantly reduces the amount of material compared to that used in conventional rebar support chairs.
  • the rod clip stand can be a plastic molded part arranged in chains of 16 units. These chains can be nested and stacked such that over 7000 units fit into a standard 2ft x 2ft x 2ft box, thereby reducing storage volume and shipping cost.
  • One or more chains can be carried on a belt so that a reinforcing ironworker or rod buster can quickly and efficiently fabricate a lattice or grid structure using these rod clip stands.
  • FIG. 1 is a perspective view of a rod clip stand in accordance with the present disclosure
  • FIG. 2 shows the rod clip stand illustrated in FIG. 1 supporting two rods in a generally orthogonal orientation
  • FIG. 3 is a front elevation of the rod clip stand shown in FIG. 1 ;
  • FIG. 4 is a rear elevation of the rod clip stand shown in FIG. 1 ;
  • FIG 5 is a left side elevation of the rod clip stand, it being understood that the right side elevation is a mirror image thereof;
  • FIG. 6 is a top plan view of the rod clip stand
  • FIG. 7 is a bottom plan view of the rod clip stand
  • FIG. 8 is a top plan view showing a lattice of rod elements with a rod clip stand at each intersection forming a node;
  • FIG. 9 is a perspective view showing 16 rod clip stands interconnected to form a chain;
  • FIG. 10 is a top plan view showing 14 chains of rod clip stands nested together for packaging and shipping.
  • a rod clip stand 10 which interconnects and supports a pair of rod elements 12, 14 in a generally orthogonal or perpendicular arrangement.
  • a plurality of rod clip stands 10 can be used to assemble a lattice or grid of rod elements 12, 14.
  • a rod clip stand 10 couples the rod elements 12, 14 together at each node, or in other words at each point where the rod elements 12, 14 intersect.
  • the rod elements 12, 14 may be reinforcing bars or rebar used to support and strengthen concrete structures.
  • the rod clip stand 10 may have utility in other applications such as pipe, conduit, etc. for fabricating a lattice or grid structure.
  • the rod clip stand 10 includes a cradle portion 16 having a first cradle 18 defined by a first concave surface 18s and second cradle 20 is laterally spaced from the first cradle 18.
  • the second cradle 20 is defined by a second concave surface 20s.
  • the cradle portion 16 is configured to receive rod element 12.
  • the rod clips stand 10 also includes an arched portion 22 interconnecting the first and second cradles 18, 20 in a spaced relationship.
  • the arched portion 22 includes a third concave surface 24s formed at a crown 24 of the arched portion 22. As best seen in FIG. 2, the arched portion 22 is configured to receive the rod element 14.
  • the centroid 26 of the first concave surface and the centroid 28 of the second concave surface lie in a common plane defined by the X-Z axes shown in FIGS. 3-5.
  • Rod clip stand 10 further includes leg portions 30, 32 extending from the first and second cradles 18, 20.
  • a centerline of the leg portions 30, 32 lie in a common plane with the centroid 26 of the first and second concave surface 18s, 20s and the centroid 28 of the third concave surface 24s as best seen in FIG. 5.
  • the centroid 28 of the third concave surface bisects the distance between the first and second leg portions 30, 32 as best seen in FIGS. 3 and 4. In this way, any load on the rod elements 12, 14 is transferred through the rod clips stand 10 in a balanced manner.
  • the spaced relationship of the first concave surface 18s and second concave surface 20s ensures that the rod clip stand 10 has at least two points of contact with rod element 12.
  • the third concave surface 24s is also configured to have at least two points of contact with rod element 14.
  • Various structural features may be included in the third concave surface 24s to provide for at least two points of contact. For example, as shown in FIG. 7, a plurality of protrusions 34 (shown in broken lines) may be formed on and extend from the third concave surface 24s. A local feature such as protrusions 34 insures that the rod clip stand 10 contacts of the rod element 14 at more than one point.
  • the protrusions may rest in between the ribs making a stable contact.
  • the protrusions may also function as a spring or biasing element for generating a clamping force on the rod elements as further described below. While the present disclosure describes and illustrates, the protrusions as being formed on the third concaved surface 24s, one skilled in the art will appreciate that the protrusions may be form on the first concaved surface and/or the second concaved surface in addition to or in place of the protrusions on the third concaved surface.
  • the dimensions of the rod clip stand 10 are configured to releasably secure rod elements 12, 14 together.
  • the height h as shown in FIG. 5 is equal to or slightly less than the sum of the diameters of rod elements 12, 14 for providing interference fit into the rod clip stand 10.
  • the rod clips stand 10, and more particularly the cradle portion 18 and the arch portion 20, generate a clamping force that acts to hold rod elements 12, 14 together.
  • the rod clip stand 10 may further include a retaining element, which is configured to engage one or both rod elements 12, 14 and securely couple the rod clip stand thereto. As best seen in FIGS.
  • the first and second cradles 18, 20 have a cam surface 36, 38 formed on an edge leading to the first and second concave surfaces 18s, 20s that define a retaining element.
  • the rod clips stand 10 is rotated clockwise (as seen in FIG. 5) so that rod element 12 engages the cam surfaces 36, 38 causing the rod clip stand to elastically deformed. Once the rod element 12 clears the cam surfaces 36, 38, the rod clip stand 10 returns to its undeformed state and captures the rod element 12 within the cradle portion 16.
  • the rod clip stand 10 may be a plastic part preferably fabricated using an injection molding process.
  • the rod clip stand 10 is shown in the figured as a solid plastic part.
  • the rod clip stand 10 may be molded to have certain voids or pockets to reduce weight and material necessary for its fabrication. In this regard, the rod clip stand 10 must have sufficient strength to support the rod elements 12, 14 and any load imparted thereon.
  • a plurality of the rod clip stands 10 may be molded at the same time and arranged in a chain 40 of rod clip stands 10 as shown in FIG. 9. Adjacent rod clip stands 10 in the chain 40 are interconnected by sprues 42 as best seen in FIG. 10.
  • individual chains 40 may be nested together to form a sheet 44 of rod clip stands 10. Multiple sheets 44 of rod clip stands 10 may be readily stacked together and packaged for storage and shipping.
  • the simple unitary design is lightweight, using about significantly less material of conventional rebar support chairs. While the number of rod clip stands 10 in a chain 40 may vary, it is presently preferred to include sixteen (16) individual rod clip stands 10 in a chain 40. These chains 40 can be nested into a sheet 44. Multiple sheets 44 may be stacked on top of one another to form a cube for compact storage and reduced shipping cost. For example, over 450 chains or more than 7200 rod clip stands may be nested and stacked so as to fit into a standard 2ft x 2ft x 2ft box. One or more chains 40 can be carried on a belt so that a reinforcing ironworker or rod buster can quickly and efficiently fabricate a lattice or grid structure using these rod clip stands.
  • the rod clip stand 10 can be used in a quick and efficient manner.
  • the reinforcing ironworker or rod buster may secure one to several chains 40 of rod clip stands 10 to a belt or other garment. Once a rebar grid is laid out, the rod buster simply breaks off a rod clip stand 10 and drops it down on top of rod element 14 so that it sits in the third concaved surface 24s of the arched portion 22. Next, rod element 12 is held up against rod element 14 and the rod clip stand 10 is slid into engagement with rod element 12 and rotated clockwise as shown in FIG.
  • the rod elements 12, 14 can be positioned on leg potions 30, 32 in a spaced relationship from a floor or other support surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

Un support d'attache de tiges est configuré de manière à fixer et à retenir de manière amovible une paire de tiges dans une orientation perpendiculaire. Le support d'attache de tiges comporte une partie berceau qui retient une première tige et une partie arquée qui retient une deuxième tige. Le support d'attache de tiges est particulièrement bien adapté pour la fabrication d'une grille à barres d'armature utilisée pour renforcer un ouvrage plat en béton.
PCT/US2014/046707 2013-07-15 2014-07-15 Support d'attache de tiges Ceased WO2015009727A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/904,854 US20160153192A1 (en) 2013-07-15 2014-07-15 Rod clip stand

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201361957921P 2013-07-15 2013-07-15
US61/957,921 2013-07-15
US201361959623P 2013-08-29 2013-08-29
US61/959,623 2013-08-29

Publications (1)

Publication Number Publication Date
WO2015009727A1 true WO2015009727A1 (fr) 2015-01-22

Family

ID=52346677

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/046707 Ceased WO2015009727A1 (fr) 2013-07-15 2014-07-15 Support d'attache de tiges

Country Status (2)

Country Link
US (1) US20160153192A1 (fr)
WO (1) WO2015009727A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9638353B2 (en) * 2014-11-03 2017-05-02 A.L. Patterson, Inc. Clip for supporting a prestressed cable along a dovetail slot in a cement casting
US10519660B2 (en) 2017-06-09 2019-12-31 Gem Technologies, Inc. Key-locked and band-tightened rebar clamping assemblies
WO2019064404A1 (fr) * 2017-09-28 2019-04-04 株式会社 豊田設計 Cale d'espacement de barre d'armature
USD992407S1 (en) * 2022-06-01 2023-07-18 Concealfab, Inc. Dual pipe clamp

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694988A (en) * 1970-01-19 1972-10-03 Mats Folke Skold Spacer clip for joining and supporting crosswisely extending reinforcement bars
US3916593A (en) * 1971-03-02 1975-11-04 Mats Folke Skold Spacer clip for joining and supporting crosswisely extending reinforcing bars
US20080115449A1 (en) * 2006-11-21 2008-05-22 Kodi Jon R Bar Connecting Apparatus
KR20100098946A (ko) * 2009-03-02 2010-09-10 중산하이픽스 주식회사 철근 받침대
US20110308192A1 (en) * 2010-06-18 2011-12-22 Kodi Klip Corporation Rebar Clip For Joining Different Size Bars

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US871210A (en) * 1906-07-25 1907-11-19 Robert A Cummings Connecting and spacing clip.
US910399A (en) * 1908-03-13 1909-01-19 Gustave Lidseen Assembling-clip.
US3461536A (en) * 1965-09-16 1969-08-19 Skolds Patentbyra Ab H Tool for joining reinforcing bars
US3673753A (en) * 1970-03-20 1972-07-04 George C Anderson Support device for concrete reinforcing bars
US3788025A (en) * 1972-05-17 1974-01-29 S Holmes Chair support for reinforcing rods
US4835933A (en) * 1988-02-11 1989-06-06 Yung Fernand P Rebar spacer assembly
US5893252A (en) * 1996-05-16 1999-04-13 Hardy Construction Technology, Llc System for affixing rebar lattice to receive concrete
USD454776S1 (en) * 1999-10-19 2002-03-26 Gopa Enterprises Holder for concrete reinforcing elements
US6276108B1 (en) * 1999-10-19 2001-08-21 Gopa Enterprises Device for supporting and connecting reinforcing elements for concrete structures
US7322158B1 (en) * 2001-06-29 2008-01-29 Sorkin Felix L Intersectional reinforcing bar support with C-shaped clamps
US20040261352A1 (en) * 2003-06-26 2004-12-30 Aztec Concrete Accessories, Inc. Rebar support chair
US6871471B1 (en) * 2003-08-15 2005-03-29 Tommy Davidson Apparatus, and associated method, for securing rebar together
USD587564S1 (en) * 2005-05-03 2009-03-03 Kodi Klip Corporation Bar clip with flared legs
USD534418S1 (en) * 2005-06-08 2007-01-02 J.M. Minor Enterprises, Inc. Re-bar clamp
USD529794S1 (en) * 2005-06-08 2006-10-10 Jack M. Minor Re-bar clamp
US7506482B2 (en) * 2006-08-01 2009-03-24 Sorkin Felix L Concrete reinforcing bar support with bar retainer members

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694988A (en) * 1970-01-19 1972-10-03 Mats Folke Skold Spacer clip for joining and supporting crosswisely extending reinforcement bars
US3916593A (en) * 1971-03-02 1975-11-04 Mats Folke Skold Spacer clip for joining and supporting crosswisely extending reinforcing bars
US20080115449A1 (en) * 2006-11-21 2008-05-22 Kodi Jon R Bar Connecting Apparatus
KR20100098946A (ko) * 2009-03-02 2010-09-10 중산하이픽스 주식회사 철근 받침대
US20110308192A1 (en) * 2010-06-18 2011-12-22 Kodi Klip Corporation Rebar Clip For Joining Different Size Bars

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