CA2066130A1 - Supporting adjustable rod assembly - Google Patents
Supporting adjustable rod assemblyInfo
- Publication number
- CA2066130A1 CA2066130A1 CA 2066130 CA2066130A CA2066130A1 CA 2066130 A1 CA2066130 A1 CA 2066130A1 CA 2066130 CA2066130 CA 2066130 CA 2066130 A CA2066130 A CA 2066130A CA 2066130 A1 CA2066130 A1 CA 2066130A1
- Authority
- CA
- Canada
- Prior art keywords
- coil
- anchoring
- securing
- coupler
- cross
- 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
Links
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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
-
- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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)
Abstract
Abstract The invention is a supporting adjustable rod assembly for holding and supporting concrete mold walls for the purpose of constructing concrete walls to be attached to existing structures.
The prior practice in this area has involved the use of individual ad hoc support structures which are time consuming and cost ineffective to prepare, install and remove. The invention consists of a coil member and coil-bolt sub-assembly, or a coil member, cone and coil-bolt sub-assembly to secure the supporting adjustable rod assembly to the plywood sheeting side of the concrete mold and an anchoring member to secure the other end of the supporting adjustable rod assembly to the opposite wall, being the face wall of the existing structure. The coil member and anchoring member are connected and supported by a coupler member, which may be separated from or integrated with the anchoring member. The length of the supporting adjustable rod assembly can be rapidly adapted to any distance between two opposing mold walls by replacement with a coil member of a different size or by screwing or unscrewing the coil member along the length of the coupler member. The invention has been tested in the field, where it was shown to reduce the time of installing a plywood sheeting mold wall by 90%.
The prior practice in this area has involved the use of individual ad hoc support structures which are time consuming and cost ineffective to prepare, install and remove. The invention consists of a coil member and coil-bolt sub-assembly, or a coil member, cone and coil-bolt sub-assembly to secure the supporting adjustable rod assembly to the plywood sheeting side of the concrete mold and an anchoring member to secure the other end of the supporting adjustable rod assembly to the opposite wall, being the face wall of the existing structure. The coil member and anchoring member are connected and supported by a coupler member, which may be separated from or integrated with the anchoring member. The length of the supporting adjustable rod assembly can be rapidly adapted to any distance between two opposing mold walls by replacement with a coil member of a different size or by screwing or unscrewing the coil member along the length of the coupler member. The invention has been tested in the field, where it was shown to reduce the time of installing a plywood sheeting mold wall by 90%.
Description
This invention relates to a supporting adjustable rod assembly for use in forming molds for constructing concrete walls attached to existing structures, and more particularly to a supporting adjustable rod assembly that connects attachment points of opposing walls of the concrete mold located at varying distances from each other.
In the construction or upgrading of building walls involving the formation of concrete wal]s against existing structures made of any material, such as dirt, brick, steel, drywall or concrete, it is necessary to build a mold into which liquified concrete can be poured and sPt. Examples of such construction or upgrading include seismic upgrading or blind wall formation. The widest vertical sides of the mold will typically consist of on the one side, the face wall of the existing structure, and on the other side, plywood sheeting. It is general practice to attach the plywood wall to the existing structure by supporting rod structures emanating perpendicularly from the face wall. Such supporting rod structures are affixed to the plywood on one end and anchored into the existing structure at the other end.
As the aim of the mold is to produce an adjacent and parallel concrete wall attached to the existing structure, the plywood sheeting must be arranged in parallel with the longitudinal center-line of the face wall. First, however, the exterior surface of thP
existing structure must be roughened to allow for proper bonding of the concrete. Because of this surface preparation, the distance between any opposed points on the exterior surface and the plywood sheeting will vary. Hence, if all supporting rods are anchored an equal distance into the face wall, then the plywood will be secured along varying lengths of the supporting rods depending upon the extent of indentation of the existing wall at the point of anchor created by the surface preparation. The variance in indentation ~?~J~ 3q3 can be significant. For example, in seismic upgrading where existiny walls are fortified as an earthquake safety measure, surface preparation is carried out by extensive jack-hammering of the existing wall which creates indentations of greatly varying depth.
However, the attachment o the plywood sheeting at different lengths of the supporting rods poses problem~. To provide for a system of supporting rods to hold the plywood sheeting in a parallel alignment, each supporting rod must be custom tailored in accordance with careful measurements made between the point of anchor of the supporting rod on the existing structure and the final position of the plywood sheeting. Because of the large number of supporting rods which are ordinarily required for achieving parallel alignment, the costs of installation can be prohibitive.
Previous practice to meet this problem has involved placing a drop-in anchor, which is internally threaded, into the existing concrete w211 followed by tightening a threaded steel rod into the drop-in anchor. At the end of the rod furthest away from the existing wall a cone may be slipped or glued down against the edge of the plastic sleeve, against which the pl~wood sheeting is bolted. The purpose of the plastic sleeve is to allow the removal of the steel rod after pour of the concrete in mold. In the case of seismic upgrading, the uneven surface of the existing wall created by the jack-hammering necessitates cutting the plastic sleeving into different lengths in order to make the plywood align parallel to the longitudinal center-line of the existing wall.
Further, limited space in which to work may require shortening of the steel rods by cutting them.
The number of steel rods that are used will depend upon the necessary structural support required for the plywood to be held ~?~ 3~) in place as well as any architectural specifications. The architectural specifications are relevant to the aesthetics of the finished concrete face because the plastic cones will leave set-back depressions in the finished concrete face. The site architect will make a determination as to the size as well as the arrangement pattern. After the concrete sets, it is necessary to remove the steels rods. If it proves impossible to release a steel rod from the drop-in anchor, any length of steel rod projecting from the finished wall must be severed.
This previous practice suffers from disadvantages in connection with skilled labour costs and finishing time. First, the plastic sleeving must be made to measure for any given particular supporting rod. Consequently, sXilled labour is required for measurement and cutting of the plastic sleeving.
Imprecise measuring and cutting can lead to an unsightly and uneven finish~ and worse, leakage into the plastic sleeving which impedes the removal of the steel rod. Second, the finishing time is increased because of the necessity of removing the steel rods after the concrete sets.
Consequently, there is a need for a supporting rod system that provides effective structural support while requiring a minimal level of effort in installation and removal.
The present invention provides a concrete mold wall connecting system comprised of a plurality of supporting adjustable rod assemblies. Each supporting adjustable rod assembly has at one end a coil member, commonly known as a "coil-tie", which is internally threaded from end to end. At one end a bolt, commonly know~ as a "coil-bolt", is tightened into the coil member serving to secure the ply~ood sheeting and if applicable, a cone, to the coil member, where the cone abuts the plywood sheeting and coil member. The coil member at the opposite end can be secured onto the coupler ;~?~ 3~i member, which has a securing means for such purpose.
The preferred means of securing the coupler member consists of utilizing a threaded shank. The threaded shank is integrated with an anchoring member, commonly known as a "quick bolt". The anchoring member consists of a cylindrical portion followed by a flared portion. An annular collar with a cross-section slightly larger than that of the cylindrical portion is loosely fitted to the cylindrical portion. The annular collar is segmented by a plurality of longitudinal grooves extending from one end of the collar to the other and from the interior surface to the exterior surface.
The supporting adjustable rod assembly is affixed to the existing structure by insertion into a hole drilled into the existing structure and by compression of the annular ring against the flared portion of the anchoring member. Consequently, the annular collar is forced along the flaring portion, thereby flaring the edges of the annular collar in an outward fashion into the surrounding existing structure, thereby securing the entire supporting adjustable rod assembly to the existing structure.
In another embodiment of the invention, the anchoring member, commonly known as a "drop-in anchor", is separated from the coupler member. Preferably, the coupler member includes an integral nut to which a wrench can be affixed and used to secure the coupler member with the anchoring member. It is also preferred that the coupler member include a threaded shank for securing the coil member and another threaded shank for securing the anchoring member at the other end. The anchoring end of the anchoring member is located opposite the coupler receiving end. The interior of the anchoring member is internally threaded with a cross-section that narrows from the receiving end to the anchoring end. Longitudinal grooves extend from the anchoring end to a distance short of the s~
receiving end and define radial segments. The longitudinal grooves allow for flaring movement of the radial segments when the coupler member is compressed into the progressi~ely restricted tubular portion of the anchoring member. The net effect of manipulation of the anchoring member is the creation of an umbrella-like anchor into the existing structure.
Installation of the supporting adjustable rod assembly involves merely the selection of a coil member with an appropriate length, which is subsequently screwed along the threaded shank of the coupler member to reach the proper spacing distance. The removal of the supporting rod structure requires equally minimal effort because the coil member, coupler member and anchoring member are left imbedded in the new concrete wall.
The drop-in anchor and quick bolt technologies are known and available from several manufacturers including BRITISH FASTENING
SYSTEMS LTD. and HILTI AG. The coil-tie and coil-bolt are also well established and are made by ~AYTON SUPERIOR LTD. among others.
The cones ~re available in a wide variety of materials including plastic, wood and concrete.
The present invention will be more completely disclosed and described with reference to the accompanying drawings, in which:
Figure 1 is a sectional view of the supporting adjustable rod assembly supporting plywood sheeting to an existing structure.
Figure 2 is a sectional view of the supporting adjustable rod assembly, wherein the anchoring member is integral to the coupler member.
Figure 3 is a sectional and front view of the coupler memberr wherein the anchoring member is separate from the coupler member.
3q~9 Referring to the drawings and in particular to Figure 1, there is illustrated a supporting adjustable rod assembly designated generally by numeral 10 in which supporting adjustable rod assembly 10 has an anchoring member designated generally by the numeral 11, coupler member 13, coil member 15, cone 17 and coil-bolt 19.
As illustrated, the face wall 3 of existing structure 1 has undergone surface preparation yielding an uneven surface characterized by several indentations ~. A receiving opening 12 has been drilled into the face wall 3 of the existing structure 1 for reception of the anchoring member 11. The coupler member 13 is either integrally attached or attached by a securing means to the anchoring member 11 and extends outward from the existing structure 1. At the other end of coupler member 13, the coil member 15 is attached by a securing means of the coupler member 13.
Abutting the coupler 13 is cone 17, which braces the plywood sheeting 6. The plywood sheeting 6 has an overlying meshwork of horizontally configured wooden planking 7 and vertically configured wooden planking 9.
The coil-bolt 19 passes through an opening 18 in the wooden planking 9, an opening 16 of the plywood sheeting 6 and an opening 20 of the cone 17 where it is secured by a securing means of the coil-bolt 19 to the coil member 15. The supporting adjustable rod assembly 10 supports and holds the plywood sheeting 6 in place away from the face wall 3, thereby defining a space 5 in which concrete may be poured and set.
Illustrated in Figure 2 is the supporting adjustable rod assembly 10 having an integrated anchoring member 11 and coupler member 13 system. At one end of the supporting adjustable rod assembly 10, a coil member 15 is secured to the coupler member 13.
The coil member 15 has a receiving means 25 for receiving the coupler member 13. The receiving means 25 comprises an integrally internally threaded tubular portion for receiving at one end a coil-bolt 1~ or a coil-bolt 19 and cone 17 assembly for securing the plywood sheeting 6, and at the other end for receiving a coupler member 13.
The coupler member 13 has at one end a securing means 27 comprising an integrally external rearwardly extending threaded shank having a cross-secti.on 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13. The securing means 27 extends to an integral anchoring member 11 in the form of a quick bolt 21.
The anchoring member 11 has a cylindrical portion 35 that abuts the securing means 27 on one end, with a cross-section 37 equal to the greatest cross-section 29 of the securing means 27, and abuts on the other end an inclined outwardly flaring portion 39. A radially seg~ented annular collar 41, having a plurality of longitudinal grooves 43 extending from end to one end of ~he annular collar 41 to the other and from the interior surface to the exterior surface and a cross-section slightly larger than the cylindrical portion 35 of the anchoring member 11, is fitted around the cylindrical portion 35 such that lateral free movement is allowed along the cylindrical portion 35, but not along the inclined outwardly flaring portion 39.
With respect to the existing structure 1 defining a receiving opening 2 in the face wall 3, the anchoring member 11 is inserted into the receiving opening 2 and while the annular collar 41 is held in place within the receiving opening, the supporting adjusta~le rod assembly 10 is forcibly pulled away from the existing structure 1. Consequently, the annular collar 41 is forced along the flaring portion 39, thereby expanding the annular collar 41 and flaring outward the rearward edges 45 of the annular - 8 ~
collar 41 into the surrounding existing structure 1 creating an umbrella-like anchor.
A variation of the supporting adjustable rod assembly 10 is illustrated in Figure 3 which uses an anchoring member 11 in the form of a separate unit, the drop-in anchor 23. T'ne coupler member 13 has at one end an integral nut 47, having a triangular cross-section with bevelled edges at each apex to allow for a ~rench to tighten the coupler member onto the separate anchoring member. The integral nut 47 has a triangular cross-section being slightly smaller than the cross section of the securing means 27 used for securing the coil member 15. The securing means 27 comprises an integrally external rearwardly extending threaded shank having a cross-section 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13. The securing means 27 extends to an integral cylindrical portion 48 with a cross-section 49 equal to the greatest cross-section 29 of the threaded shank of the securing means 27. The cylindrical portion 48 extends rearwardly to another threaded portion ~1 of the coupler member 13 having a cross-section 55, thread width 53 and thread depth 57 so constructed that the separate anchoring member 11 will receive the coupler member 13.
The anchoring member 11 has a receiving end 61 for the coupler member 13 and an anchoring end 63 for anchoring into the existing structure 1. The interior of the anchoring member 11 is defined by an integrally internally threaded tubular portion 59 with cross-section that narrows along the extension of the tubular portion 59 towards the anchoring end 63. Longitudinal grooves extend from the anchoring end to a distance short of the receiving end 61 and define radial segments of the anchoring member 11. When the coupler member 13 is forcible screwed into the anchoring member 11, which has been placed into the receiving opening 12 defined by the existing structure 1, the radial segments are forced outward into 31~
g the surrounding existing structure 1 creating an umbrella-like anchor and thereby securing the entire supporting adjustable rod assembly 10.
The distance between the two ends of the supporting adjustable rod assembly 10 can be grossly varied by use of coil members 15 of different lengths and can be finely varied by screwing or unscrewing the coil member 15 along the securing means 27 of the coupler member 13. Once the concrete sets, the coil-bolt 19, plywood sheeting 6 and the cone 17, if applicable, are removed leaving behind the remainder of the supporting adjustable rod assembly. The coil member's cross-section 65 in Figure 1 will vary in proportion to its length. As the threaded shank of the coupler member has a cross-section 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13, the dimensions of the securing means 27 will vary with the coil member length. Further, the dimensions of the securing means 51 for the anchoring member 11 as well as the dimensions of the anchoring member 11 will vary in order to provide the requisite structural support for a larger supporting adjustable rod assembly 10 .
While the use of 01/2 C12 I.14 grade steel is preferred in constructing the coupler member 13, either with or without an integrated anchoring member 11, other suitable materials for construction may be used.
In the construction or upgrading of building walls involving the formation of concrete wal]s against existing structures made of any material, such as dirt, brick, steel, drywall or concrete, it is necessary to build a mold into which liquified concrete can be poured and sPt. Examples of such construction or upgrading include seismic upgrading or blind wall formation. The widest vertical sides of the mold will typically consist of on the one side, the face wall of the existing structure, and on the other side, plywood sheeting. It is general practice to attach the plywood wall to the existing structure by supporting rod structures emanating perpendicularly from the face wall. Such supporting rod structures are affixed to the plywood on one end and anchored into the existing structure at the other end.
As the aim of the mold is to produce an adjacent and parallel concrete wall attached to the existing structure, the plywood sheeting must be arranged in parallel with the longitudinal center-line of the face wall. First, however, the exterior surface of thP
existing structure must be roughened to allow for proper bonding of the concrete. Because of this surface preparation, the distance between any opposed points on the exterior surface and the plywood sheeting will vary. Hence, if all supporting rods are anchored an equal distance into the face wall, then the plywood will be secured along varying lengths of the supporting rods depending upon the extent of indentation of the existing wall at the point of anchor created by the surface preparation. The variance in indentation ~?~J~ 3q3 can be significant. For example, in seismic upgrading where existiny walls are fortified as an earthquake safety measure, surface preparation is carried out by extensive jack-hammering of the existing wall which creates indentations of greatly varying depth.
However, the attachment o the plywood sheeting at different lengths of the supporting rods poses problem~. To provide for a system of supporting rods to hold the plywood sheeting in a parallel alignment, each supporting rod must be custom tailored in accordance with careful measurements made between the point of anchor of the supporting rod on the existing structure and the final position of the plywood sheeting. Because of the large number of supporting rods which are ordinarily required for achieving parallel alignment, the costs of installation can be prohibitive.
Previous practice to meet this problem has involved placing a drop-in anchor, which is internally threaded, into the existing concrete w211 followed by tightening a threaded steel rod into the drop-in anchor. At the end of the rod furthest away from the existing wall a cone may be slipped or glued down against the edge of the plastic sleeve, against which the pl~wood sheeting is bolted. The purpose of the plastic sleeve is to allow the removal of the steel rod after pour of the concrete in mold. In the case of seismic upgrading, the uneven surface of the existing wall created by the jack-hammering necessitates cutting the plastic sleeving into different lengths in order to make the plywood align parallel to the longitudinal center-line of the existing wall.
Further, limited space in which to work may require shortening of the steel rods by cutting them.
The number of steel rods that are used will depend upon the necessary structural support required for the plywood to be held ~?~ 3~) in place as well as any architectural specifications. The architectural specifications are relevant to the aesthetics of the finished concrete face because the plastic cones will leave set-back depressions in the finished concrete face. The site architect will make a determination as to the size as well as the arrangement pattern. After the concrete sets, it is necessary to remove the steels rods. If it proves impossible to release a steel rod from the drop-in anchor, any length of steel rod projecting from the finished wall must be severed.
This previous practice suffers from disadvantages in connection with skilled labour costs and finishing time. First, the plastic sleeving must be made to measure for any given particular supporting rod. Consequently, sXilled labour is required for measurement and cutting of the plastic sleeving.
Imprecise measuring and cutting can lead to an unsightly and uneven finish~ and worse, leakage into the plastic sleeving which impedes the removal of the steel rod. Second, the finishing time is increased because of the necessity of removing the steel rods after the concrete sets.
Consequently, there is a need for a supporting rod system that provides effective structural support while requiring a minimal level of effort in installation and removal.
The present invention provides a concrete mold wall connecting system comprised of a plurality of supporting adjustable rod assemblies. Each supporting adjustable rod assembly has at one end a coil member, commonly known as a "coil-tie", which is internally threaded from end to end. At one end a bolt, commonly know~ as a "coil-bolt", is tightened into the coil member serving to secure the ply~ood sheeting and if applicable, a cone, to the coil member, where the cone abuts the plywood sheeting and coil member. The coil member at the opposite end can be secured onto the coupler ;~?~ 3~i member, which has a securing means for such purpose.
The preferred means of securing the coupler member consists of utilizing a threaded shank. The threaded shank is integrated with an anchoring member, commonly known as a "quick bolt". The anchoring member consists of a cylindrical portion followed by a flared portion. An annular collar with a cross-section slightly larger than that of the cylindrical portion is loosely fitted to the cylindrical portion. The annular collar is segmented by a plurality of longitudinal grooves extending from one end of the collar to the other and from the interior surface to the exterior surface.
The supporting adjustable rod assembly is affixed to the existing structure by insertion into a hole drilled into the existing structure and by compression of the annular ring against the flared portion of the anchoring member. Consequently, the annular collar is forced along the flaring portion, thereby flaring the edges of the annular collar in an outward fashion into the surrounding existing structure, thereby securing the entire supporting adjustable rod assembly to the existing structure.
In another embodiment of the invention, the anchoring member, commonly known as a "drop-in anchor", is separated from the coupler member. Preferably, the coupler member includes an integral nut to which a wrench can be affixed and used to secure the coupler member with the anchoring member. It is also preferred that the coupler member include a threaded shank for securing the coil member and another threaded shank for securing the anchoring member at the other end. The anchoring end of the anchoring member is located opposite the coupler receiving end. The interior of the anchoring member is internally threaded with a cross-section that narrows from the receiving end to the anchoring end. Longitudinal grooves extend from the anchoring end to a distance short of the s~
receiving end and define radial segments. The longitudinal grooves allow for flaring movement of the radial segments when the coupler member is compressed into the progressi~ely restricted tubular portion of the anchoring member. The net effect of manipulation of the anchoring member is the creation of an umbrella-like anchor into the existing structure.
Installation of the supporting adjustable rod assembly involves merely the selection of a coil member with an appropriate length, which is subsequently screwed along the threaded shank of the coupler member to reach the proper spacing distance. The removal of the supporting rod structure requires equally minimal effort because the coil member, coupler member and anchoring member are left imbedded in the new concrete wall.
The drop-in anchor and quick bolt technologies are known and available from several manufacturers including BRITISH FASTENING
SYSTEMS LTD. and HILTI AG. The coil-tie and coil-bolt are also well established and are made by ~AYTON SUPERIOR LTD. among others.
The cones ~re available in a wide variety of materials including plastic, wood and concrete.
The present invention will be more completely disclosed and described with reference to the accompanying drawings, in which:
Figure 1 is a sectional view of the supporting adjustable rod assembly supporting plywood sheeting to an existing structure.
Figure 2 is a sectional view of the supporting adjustable rod assembly, wherein the anchoring member is integral to the coupler member.
Figure 3 is a sectional and front view of the coupler memberr wherein the anchoring member is separate from the coupler member.
3q~9 Referring to the drawings and in particular to Figure 1, there is illustrated a supporting adjustable rod assembly designated generally by numeral 10 in which supporting adjustable rod assembly 10 has an anchoring member designated generally by the numeral 11, coupler member 13, coil member 15, cone 17 and coil-bolt 19.
As illustrated, the face wall 3 of existing structure 1 has undergone surface preparation yielding an uneven surface characterized by several indentations ~. A receiving opening 12 has been drilled into the face wall 3 of the existing structure 1 for reception of the anchoring member 11. The coupler member 13 is either integrally attached or attached by a securing means to the anchoring member 11 and extends outward from the existing structure 1. At the other end of coupler member 13, the coil member 15 is attached by a securing means of the coupler member 13.
Abutting the coupler 13 is cone 17, which braces the plywood sheeting 6. The plywood sheeting 6 has an overlying meshwork of horizontally configured wooden planking 7 and vertically configured wooden planking 9.
The coil-bolt 19 passes through an opening 18 in the wooden planking 9, an opening 16 of the plywood sheeting 6 and an opening 20 of the cone 17 where it is secured by a securing means of the coil-bolt 19 to the coil member 15. The supporting adjustable rod assembly 10 supports and holds the plywood sheeting 6 in place away from the face wall 3, thereby defining a space 5 in which concrete may be poured and set.
Illustrated in Figure 2 is the supporting adjustable rod assembly 10 having an integrated anchoring member 11 and coupler member 13 system. At one end of the supporting adjustable rod assembly 10, a coil member 15 is secured to the coupler member 13.
The coil member 15 has a receiving means 25 for receiving the coupler member 13. The receiving means 25 comprises an integrally internally threaded tubular portion for receiving at one end a coil-bolt 1~ or a coil-bolt 19 and cone 17 assembly for securing the plywood sheeting 6, and at the other end for receiving a coupler member 13.
The coupler member 13 has at one end a securing means 27 comprising an integrally external rearwardly extending threaded shank having a cross-secti.on 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13. The securing means 27 extends to an integral anchoring member 11 in the form of a quick bolt 21.
The anchoring member 11 has a cylindrical portion 35 that abuts the securing means 27 on one end, with a cross-section 37 equal to the greatest cross-section 29 of the securing means 27, and abuts on the other end an inclined outwardly flaring portion 39. A radially seg~ented annular collar 41, having a plurality of longitudinal grooves 43 extending from end to one end of ~he annular collar 41 to the other and from the interior surface to the exterior surface and a cross-section slightly larger than the cylindrical portion 35 of the anchoring member 11, is fitted around the cylindrical portion 35 such that lateral free movement is allowed along the cylindrical portion 35, but not along the inclined outwardly flaring portion 39.
With respect to the existing structure 1 defining a receiving opening 2 in the face wall 3, the anchoring member 11 is inserted into the receiving opening 2 and while the annular collar 41 is held in place within the receiving opening, the supporting adjusta~le rod assembly 10 is forcibly pulled away from the existing structure 1. Consequently, the annular collar 41 is forced along the flaring portion 39, thereby expanding the annular collar 41 and flaring outward the rearward edges 45 of the annular - 8 ~
collar 41 into the surrounding existing structure 1 creating an umbrella-like anchor.
A variation of the supporting adjustable rod assembly 10 is illustrated in Figure 3 which uses an anchoring member 11 in the form of a separate unit, the drop-in anchor 23. T'ne coupler member 13 has at one end an integral nut 47, having a triangular cross-section with bevelled edges at each apex to allow for a ~rench to tighten the coupler member onto the separate anchoring member. The integral nut 47 has a triangular cross-section being slightly smaller than the cross section of the securing means 27 used for securing the coil member 15. The securing means 27 comprises an integrally external rearwardly extending threaded shank having a cross-section 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13. The securing means 27 extends to an integral cylindrical portion 48 with a cross-section 49 equal to the greatest cross-section 29 of the threaded shank of the securing means 27. The cylindrical portion 48 extends rearwardly to another threaded portion ~1 of the coupler member 13 having a cross-section 55, thread width 53 and thread depth 57 so constructed that the separate anchoring member 11 will receive the coupler member 13.
The anchoring member 11 has a receiving end 61 for the coupler member 13 and an anchoring end 63 for anchoring into the existing structure 1. The interior of the anchoring member 11 is defined by an integrally internally threaded tubular portion 59 with cross-section that narrows along the extension of the tubular portion 59 towards the anchoring end 63. Longitudinal grooves extend from the anchoring end to a distance short of the receiving end 61 and define radial segments of the anchoring member 11. When the coupler member 13 is forcible screwed into the anchoring member 11, which has been placed into the receiving opening 12 defined by the existing structure 1, the radial segments are forced outward into 31~
g the surrounding existing structure 1 creating an umbrella-like anchor and thereby securing the entire supporting adjustable rod assembly 10.
The distance between the two ends of the supporting adjustable rod assembly 10 can be grossly varied by use of coil members 15 of different lengths and can be finely varied by screwing or unscrewing the coil member 15 along the securing means 27 of the coupler member 13. Once the concrete sets, the coil-bolt 19, plywood sheeting 6 and the cone 17, if applicable, are removed leaving behind the remainder of the supporting adjustable rod assembly. The coil member's cross-section 65 in Figure 1 will vary in proportion to its length. As the threaded shank of the coupler member has a cross-section 29, thread width 31 and thread depth 33 so constructed that the coil member 15 will receive the coupler member 13, the dimensions of the securing means 27 will vary with the coil member length. Further, the dimensions of the securing means 51 for the anchoring member 11 as well as the dimensions of the anchoring member 11 will vary in order to provide the requisite structural support for a larger supporting adjustable rod assembly 10 .
While the use of 01/2 C12 I.14 grade steel is preferred in constructing the coupler member 13, either with or without an integrated anchoring member 11, other suitable materials for construction may be used.
Claims (8)
1. In a supporting adjustable rod assembly for use in forming molds, made in part of plywood sheeting, for constructing concrete walls attached to an existing structure, having:
a coil member, cone and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at one end said coil-bolt for securing said plywood sheeting to said coil member while said cone is positioned between said plywood sheeting and said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having at one end a cylindrical portion abutting on the other end an inclined outwardly flaring portion, and a radially segmented annular collar loosely fitted around said cylindrical portion, wherein said annular collar has a plurality of longitudinal grooves extending from one end of said annular collar to the other end and from the interior surface to the exterior surface and a cross-section slightly larger than said cylindrical portion, the combination of said coil member, cone and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member.
a coil member, cone and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at one end said coil-bolt for securing said plywood sheeting to said coil member while said cone is positioned between said plywood sheeting and said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having at one end a cylindrical portion abutting on the other end an inclined outwardly flaring portion, and a radially segmented annular collar loosely fitted around said cylindrical portion, wherein said annular collar has a plurality of longitudinal grooves extending from one end of said annular collar to the other end and from the interior surface to the exterior surface and a cross-section slightly larger than said cylindrical portion, the combination of said coil member, cone and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member.
2. In a supporting adjustable rod assembly for use in forming molds, made in part of plywood sheeting, for forming constructing concrete walls attached to an existing structure having:
a coil member and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at end said coil-bolt for securing said plywood sheeting to said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having at one end a cylindrical portion abutting on the other end an inclined outwardly flaring portion, and a radially segmented annular collar loosely fitted around said cylindrical portion, wherein said annular collar has a plurality of longitudinal grooves extending from one end of said annular collar to the other end and from the interior surface to the exterior surface and a cross-section slightly larger than said cylindrical portion, the combination of said coil member and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member.
a coil member and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at end said coil-bolt for securing said plywood sheeting to said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having at one end a cylindrical portion abutting on the other end an inclined outwardly flaring portion, and a radially segmented annular collar loosely fitted around said cylindrical portion, wherein said annular collar has a plurality of longitudinal grooves extending from one end of said annular collar to the other end and from the interior surface to the exterior surface and a cross-section slightly larger than said cylindrical portion, the combination of said coil member and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member.
3. A combination for a supporting adjustable rod assembly as set forth in claim 1 or claim 2, in which said coupler member comprises:
(a) a securing means for said coil member comprising an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member; and (b) an integrated arrangement between said securing means for said coil member and said anchoring member, wherein said cylindrical portion of said anchoring member has a cross-section equal to the greatest cross-section of said securing means.
(a) a securing means for said coil member comprising an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member; and (b) an integrated arrangement between said securing means for said coil member and said anchoring member, wherein said cylindrical portion of said anchoring member has a cross-section equal to the greatest cross-section of said securing means.
4. In a supporting adjustable rod assembly for use in forming molds, made in part of plywood sheeting, for constructing concrete walls attached to an existing structure, having:
a coil member, cone and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at one end said coil-bolt for securing said plywood sheeting to said coil member while said cone is positioned between said plywood sheeting and said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having one end for anchoring into said existing structure, wherein the interior of the anchoring member is defined by an integrally internally threaded tubular portion with a narrowing cross-section extending from one end to said anchoring end and wherein said anchoring member has a plurality of longitudinal grooves extending from said anchoring end to a distance short of the opposite end defining a plurality of radial segments, the combination of said coil member, cone and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member, wherein said coupler member and said anchoring member are non-integrated and said anchoring member has a receiving end for said coupler member at the opposite end from said anchoring end.
a coil member, cone and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at one end said coil-bolt for securing said plywood sheeting to said coil member while said cone is positioned between said plywood sheeting and said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having one end for anchoring into said existing structure, wherein the interior of the anchoring member is defined by an integrally internally threaded tubular portion with a narrowing cross-section extending from one end to said anchoring end and wherein said anchoring member has a plurality of longitudinal grooves extending from said anchoring end to a distance short of the opposite end defining a plurality of radial segments, the combination of said coil member, cone and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member, wherein said coupler member and said anchoring member are non-integrated and said anchoring member has a receiving end for said coupler member at the opposite end from said anchoring end.
5. In a supporting adjustable rod assembly for use in forming molds, made in part of plywood sheeting, for forming constructing concrete walls attached to an existing structure, having:
a coil member and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at end said coil-bolt for securing said plywood sheeting to said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having one end for anchoring into said existing structure, wherein the interior of said anchoring member is defined by an integrally internally threaded tubular portion with a narrowing cross-section extending from one end to said anchoring end and wherein said anchoring member has a plurality of longitudinal grooves extending from said anchoring end to a distance short of the opposite end defining a plurality of radial segments, the combination of said coil member and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member, wherein said coupler member and said anchoring member are non-integrated and said anchoring member has a receiving end for said coupler member at the opposite end from said anchoring end.
a coil member and coil-bolt sub-assembly for securing said plywood sheeting, wherein said coil member has an integrally internally threaded tubular portion for receiving at end said coil-bolt for securing said plywood sheeting to said coil member; and an anchoring member for securing said supporting adjustable rod assembly to said existing structure, having one end for anchoring into said existing structure, wherein the interior of said anchoring member is defined by an integrally internally threaded tubular portion with a narrowing cross-section extending from one end to said anchoring end and wherein said anchoring member has a plurality of longitudinal grooves extending from said anchoring end to a distance short of the opposite end defining a plurality of radial segments, the combination of said coil member and coil-bolt sub-assembly and said anchoring member with a coupler member for connecting and supporting said coil member with said anchoring member, wherein said coupler member and said anchoring member are non-integrated and said anchoring member has a receiving end for said coupler member at the opposite end from said anchoring end.
6. A combination for a supporting adjustable rod assembly as set forth in claim 4, in which said coupler member comprises:
(a) a securing means for said coil member comprising of an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member;
(b) a securing means for said anchoring member comprising of an integral cylindrical portion with a cross-section equal to the greatest cross-section of said coil member securing means extending rearwardly to another threaded portion for securing said anchoring member having a cross-section, thread width and thread depth so constructed that said anchoring member can receive said coupler member at said receiving end; and (c) an integral means for tightening said coupler member into said anchoring member.
(a) a securing means for said coil member comprising of an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member;
(b) a securing means for said anchoring member comprising of an integral cylindrical portion with a cross-section equal to the greatest cross-section of said coil member securing means extending rearwardly to another threaded portion for securing said anchoring member having a cross-section, thread width and thread depth so constructed that said anchoring member can receive said coupler member at said receiving end; and (c) an integral means for tightening said coupler member into said anchoring member.
7. A combination for a supporting adjustable rod assembly as set forth in claim 5, in which said coupler member comprises:
(a) a securing means for said coil member comprising of an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member;
(b) a securing means for said anchoring member comprising of an integral cylindrical portion with a cross-section equal to the greatest cross-section of said coil member securing means extending rearwardly to another threaded portion for securing said anchoring member having a cross-section, thread width and thread depth so constructed that said anchoring member can receive said coupler member at said receiving end; and (c) an integral means for tightening said coupler member into said anchoring member.
(a) a securing means for said coil member comprising of an integrally external rearwardly extending threaded shank having a cross-section, thread width and thread depth so constructed that said coil member will receive said coupler member;
(b) a securing means for said anchoring member comprising of an integral cylindrical portion with a cross-section equal to the greatest cross-section of said coil member securing means extending rearwardly to another threaded portion for securing said anchoring member having a cross-section, thread width and thread depth so constructed that said anchoring member can receive said coupler member at said receiving end; and (c) an integral means for tightening said coupler member into said anchoring member.
8. A combination for a supporting adjustable rod assembly as set forth in claim 6 or claim 7, in which said integral means for tightening said coupler member into said anchoring member comprises:
(a) an integral nut arranged on the vertical surface of the end of said coil member securing means, having a triangular cross-section with bevelled edges at each apex, wherein said triangular cross-section is smaller than cross-section of said coil member securing means.
stu\pf\carmpat. cdn
(a) an integral nut arranged on the vertical surface of the end of said coil member securing means, having a triangular cross-section with bevelled edges at each apex, wherein said triangular cross-section is smaller than cross-section of said coil member securing means.
stu\pf\carmpat. cdn
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2066130 CA2066130A1 (en) | 1992-04-15 | 1992-04-15 | Supporting adjustable rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2066130 CA2066130A1 (en) | 1992-04-15 | 1992-04-15 | Supporting adjustable rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2066130A1 true CA2066130A1 (en) | 1993-10-16 |
Family
ID=4149649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2066130 Abandoned CA2066130A1 (en) | 1992-04-15 | 1992-04-15 | Supporting adjustable rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2066130A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923401A (en) * | 2012-10-24 | 2013-02-13 | 三一重工股份有限公司 | Powder tank and batching plant with same |
| CN103967273A (en) * | 2014-04-16 | 2014-08-06 | 云南昆钢钢结构有限公司 | Concrete formwork supporting device for floor slab concreting |
-
1992
- 1992-04-15 CA CA 2066130 patent/CA2066130A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923401A (en) * | 2012-10-24 | 2013-02-13 | 三一重工股份有限公司 | Powder tank and batching plant with same |
| CN102923401B (en) * | 2012-10-24 | 2015-03-18 | 三一重工股份有限公司 | Powder tank and batching plant with same |
| CN103967273A (en) * | 2014-04-16 | 2014-08-06 | 云南昆钢钢结构有限公司 | Concrete formwork supporting device for floor slab concreting |
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