KR20160008972A - Slotted insert with captured nut anchor - Google Patents

Abstract

A slotted insert is based on a non-metallic void former comprising a neck portion forming a longitudinally elongated slot and having a first horizontal width, and a channel portion forming a longitudinally elongated channel and having a second horizontal width substantially wider than the first horizontal width. The insert comprises a metal nut which is mounted in the channel, and has an opening and a third horizontal width substantially wider than the first horizontal width. The longitudinally elongated slot and the longitudinally elongated channel are connected to the opening of the mounted metal nut accessible through the slot to provide an adjustable anchoring or a connection point to other structural components. Various attachment types allow the insert to be arranged within a form by a direct attachment to a forming surface of a concrete form member or without the attachment.

Description

[0001] SLOTTED INSERT WITH CAPTURED NUT ANCHOR [0002]

The present invention relates to a slotted insert used for providing cast concrete elements having adjustable attachment points for concrete forming systems, particularly wall panels, architectural panels, structural frames, decking, and other pre-cast or pre- Lt; / RTI > The slotted insert is fitted in a pre-cast or spot-poured concrete element by a mounting nut that provides an adjustable threaded bolted connection for adjacent pre-cast or pre-fabricated structural components.

The slotted inserts may be pre-cast and pre-fabricated structural components or to provide a concrete component, most typically a pre-molded component, to provide adjustable fastening or connection points between the in-situ foundations or walls and between these structural components Is used. These inserts are typically formed all of [Ohio Miamisburg material Dayton Super manufactured by Rio Corporation of] P30 Corewall _® Nut Type Slotted plurality of lateral projecting legs and the elongate slot in the longitudinal direction, such as the Insert It has a metal body. The metal nut is mounted in a housing behind a elongated slot and forming a elongated channel, the mounting nut being slidably disposed along the length of the channel and slot to provide a longitudinal adjustable connection. The cap and elongated slot may be horizontally facing and extend vertically, for example, to fit vertically or horizontally into the face of the wall to provide vertically adjustable connection points to the pre-molded panel For example, can be fitted into the floor to provide a horizontally adjustable connection point to the pre-cast panel, but the insert can be molded in any orientation and / As will be understood by those skilled in the art. The insert may be attached to the mold or may be received in a casting bed such that the elongated slot is disposed with respect to the inner surface of the forming surface and that the cap and elongated slot face upwardly and in the manual setting or support member in the wet concrete Is placed adjacent to the free surface of the concrete through the attachment. The mounting nut is often protected from exposure to concrete poured by a removable cap disposed in the slot or alternatively may be protected by means for forming a seal towards the inner surface of the forming surface. A rebar is a steel reinforcing steel bar that is used to secure the insert and to provide lateral protruding legs of the steel body between the inner surface of the forming surface and the legs to assist in resisting pull- Fixed or tied.

The wet concrete is poured into the assembled mold around the attachment insert and hardened. The form is subsequently stripped from the formed concrete and the inserted insert, and the elongated slot of the insert is eventually flush with the surface of the essentially-formed concrete element. A removable cap, if provided, is removed to expose the elongated slot and mounting nut, which is adjustably retained longitudinally in the elongated slot but mounted within the insert and surrounding concrete. Pre-cast or pre-fabricated structural components such as wall panels, structural frames, decking, etc. can be connected to the nuts, inserts and surrounding concrete by means of threaded bolt type connections such as threaded strap anchors or by threaded bolts . The resulting connection may be adjustable to accommodate changes in the dimensions of other components and the location of the connection point and may be ductile for use as a structural connection in the seismically active area.

Applicants have invented an improved slotted insert that works similarly to known slotted inserts but does not require a metal body or the like used in conventional inserts. Instead, the slotted insert uses a multi-part, non-metallic void former to receive the metal nut. The lightweight body forms a three-elongated slot having a first transverse width and a recessed elongated channel having a second substantially large transverse width. In use, the metal nut having a transverse width substantially greater than the first transverse width carries against the concrete surrounding the lightweight body than the metal body member. As a result, the lightweight body or insert body is made entirely of molded plastic or other non-metallic materials. Thus, the present arrangement reduces the weight of the resulting insert, the manufacturing cost of the insert, and the susceptibility of the insert to galvanic or oxidative corrosion.

In a first aspect, a slotted insert comprises a nonmetallic lightweight body having a neck portion forming a longitudinal elongated slot and having a first transverse width, and a neck elongated channel And a channel portion having a second lateral width that is significantly larger than the first lateral width. The insert also includes a metal nut mounted within the channel and having an opening and a third transverse width that is significantly larger than the first transverse width. Wherein the longitudinal elongated slot and the longitudinal elongate channel are interconnected and aligned with one another such that the longitudinal axis of the slot and the longitudinal axis of the channel are parallel to one another, It is accessible through.

In a second aspect, a die component includes an insert, the insert comprising a nonmetallic neck portion forming a longitudinal elongated slot and having a first transverse width, a longitudinal elongated channel, A metal nut mounted within the channel, the metal nut having an opening and a third lateral width that is significantly greater than the first lateral width; and a metal nut having a second transverse width that is substantially greater than the first transverse width, And a removable cap portion configured to seal the longitudinal elongate slot opposite the longitudinal elongate channel. The longitudinal elongated slot and the elongated elongate channel being interconnected and aligned with each other such that the longitudinal axis of the slot and the longitudinal axis of the channel are parallel to each other, And is accessible through the slot upon removal of the cap portion. The mold further includes a pair of metal reinforcement bars that bracket with the lightweight body of the longitudinal elongated channel proximal and extend parallel to the longitudinal axis of the channel. The insert is preferably attached to the metal reinforcement bar through a plurality of clips projecting outwardly from the lightweight channel portion.

In a third aspect, the die component includes an insert, the insert comprising a nonmetallic neck portion forming a longitudinal elongated slot and having a first transverse width, a longitudinal elongated channel, A metal nut mounted within the channel, the metal nut having an opening and a third lateral width that is significantly larger than the first lateral width, the non-metallic channel portion having a significantly larger lateral width . Wherein the longitudinal elongated slot and the longitudinal elongate channel are interconnected and aligned with one another such that the longitudinal axis of the slot and the longitudinal axis of the slot are parallel to one another, It is accessible through. The die further comprises a support member, which may be a concrete frame, wherein the neck portion is attached to the inner surface of the support member through a plurality of stators inserted through the projecting tab or flange and into the inner surface.

1 is a perspective view of one embodiment of a lightweight body.
Figure 2 is an exploded perspective view of the embodiment of Figure 1 further illustrating a longitudinal elongated slot, a longitudinal elongated channel, and a mounted metal nut.
3 is a perspective view of a form assembly including a metal reinforcement bar attached to a lightweight body.
4 is a perspective view of a form assembly including a lightweight body attached to an inner surface of a support member;

As shown in Figures 1 and 2, the insert 100 is Includes a non-metallic lightweight body (110) including a neck portion (120) forming a longitudinal elongated slot (130) and a channel portion (140) forming a longitudinal elongated channel (150). The insert 100 also includes a metal nut 160 mounted within the channel 150. The channel 150 is significantly wider than the neck portion 120 to allow the metal nut 160 to sustain the concrete surrounding the neck portion 120 of the light weight body 110 and the "substantially & Means for the purpose of application, wider than 1/4 inch along the longitudinal elongate structure on the average sides. 2, the neck portion 120 has a first transverse width 122 and the formed channel 150 has a second transverse width < RTI ID = 0.0 > 152 and the metal nut 160 has a third transverse width 162 that is significantly larger than the first transverse width 122. The third lateral width 162 is preferably essentially the same as the second lateral width 152 but is not required. The longitudinal elongated slot 130 and the longitudinal elongate channel 150 (i.e., pores that are not pore-forming structures) are interconnected and aligned with each other such that the longitudinal axis of the slot and the longitudinal channels of the channel are parallel to each other Do.

The neck portion 120 and the channel portion 140 are preferably separate portions of the insert 100 such that the other neck portion 120 having a different depth 124 is located on the side of the concrete "S" Is attached to the same channel portion (140) to provide a threaded bolt-type connection (164) adjustable at different depths from the surface. The portions 120,140 may be releasably interlocked to each other for possible interchangeability. For example, the channel facing end 126 of the neck portion 120 includes an outwardly projecting peripheral flange 128, and the neck facing end 144 of the channel portion 140 includes a neck portion 120 and a channel portion < RTI ID = 0.0 & And an inwardly open circumferential track 146 that engages the peripheral flange 128 to interlock the outer flange 128 and the outer flange 128 together. It will be appreciated that the channel facing end 126 of the neck portion 120 may include such a track and the neck facing end 144 of the channel portion 140 includes a projecting peripheral flange to provide the same function. The neck portion 120 may be sufficiently flexible such that the channel facing end 126 and the flange 128 can be compressed to fit within the circumferential track 146. Channel portion 140 includes detachable halves 140a and 140b and includes a respective latching tab 148a and ridged land 149a (shown in Figure 2) or U- And a locking ramp 149a (shown in FIG. 4). This configuration allows the channel portion halves 140a and 140b to snap around the perimeter flange 128 of the neck portion 120 and to provide a metal nut (not shown) into the channel 150 formed by the halves during manufacture or user assembly 160). It will be appreciated by those skilled in the art that the neck portion 120 and / or the channel portions 140 (or 140a, 140b) may be formed by any suitable means known in the art, such as solvent dispensing for a bonding material to eliminate the need for one or more structures, welding, ultrasonic welding, adhesives and similar known means.

In some embodiments, the insert portion 100 includes a removable cap portion 170 configured to seal a longitudinal elongated slot 130 that is opposite the longitudinal elongate channel 150. The removable cap portion 170 is formed by a line or thin web of perforations 172 (all shown by the dotted lines) proximal to the perimeter of the elongated longitudinal slots 130, Lt; / RTI > The cap portion 170 may be removed by drilling a portion having a tool such as a screwdriver and breaking the line of the perforations 172 or the vulnerable web. Removable cap portion 170 may include a pull tab attached to the cap portion through an active hinge configured to enable tool less removal, such as a molding loop and stem. Alternatively, the removable cap portion 170 may be a separate non-metallic or metallic cap snap-fitting with the neck portion 120 opposite the channel portion 140. A separate metallic removable cap portion 170, such as a steel cap, may be detected by a suitably calibrated metal detector and / or reused with other inserts 100 in subsequent forming operations.

In some embodiments, the neck portion 120 includes a plurality of outwardly projecting tabs 125 that are opposite the channel-facing end 126. As shown, the tabs include a reinforcing gusset 125a and project longitudinally from the neck portion 120. However, gusset 125a is optional and tab 125 extends longitudinally from neck portion 120, transverse to neck portion 120 and / or longitudinal axis of longitudinal elongated slot 130 It will be appreciated that they can protrude at non-orthogonal angles. The tabs 125 are shown as including openings, but the openings may instead be thin webs or even omitted and may be configured to act to form an opening therein when used to secure the insert 100 against the concrete frame through the taps Such as nails, which are made of metal. In another embodiment, the neck portion 120 may include an outwardly projecting peripheral flange that is opposite the peripheral flange 128 at the channel-facing end 126, and the outwardly projecting flange may include similar apertures And may include thin webs. For purposes of the present application and claims, the peripheral flange will be considered as a general box surrounding one or more outwardly projecting tabs 125 of variable size.

In some embodiments, the channel portion 140 includes a plurality of outwardly projecting clips 145. The clips act to attach the insert 100 to a metal reinforcement " bar "or" lever "disposed in the concrete frame, thereby eliminating the need to secure the insert 100 directly to the concrete frame. It will be appreciated that the insert 100 may not be directly secured to the feature itself, but may be disposed adjacent to the wall feature through the clip connection, or directly adjacent to the adjacent concrete framework, such as under the cap feature. In some embodiments (not shown), a pair of opposite clips 145 may be disposed outermost in the transverse direction or outermost in the longitudinal direction of the channel portion 140. In the illustrated embodiment, the clip 145 is configured to receive a metal reinforcement bar that extends parallel to the longitudinal axis of the channel 150 and also extends longitudinally in the channel portion 140, 143, respectively. The support surface may further include clip-on sidewalls 147 to retain the metal reinforcement bars in place. As described below, in this embodiment, the metal nut 160 can withstand the reinforcement rods to resist pulling of the nut from the insert 100 and the surrounding concrete.

The metal nut 160 is preferably a rectangular nut, but it need not necessarily be hyperrectangle or orthotope (i.e., it need not necessarily be a rectangular box). In some embodiments, metal nut 160 may be a rectangular nut having a rounded edge, such as a conventional square nut. In another embodiment, the metal nut 160 includes a rectangular portion, but may include an integral shaft structure, such as a T-slot nut, to provide a large load capacity to the opening 164 of the nut. The opening 164 is typically threaded to increase the load capacity of the metal nut 160, typically by increasing the depth of the opening. In the illustrated embodiment, the metal nut 160 is generally longitudinally extending in the channel portion 140, a pair of longitudinally extending coinciding lateral projecting support surfaces 143, lateral projecting wings 163, . The metal reinforcement bars disposed on the channel support surfaces 143 are disposed proximate to the wings 163 of the nut 160 and consequently the nut 160 extends through the longitudinal elongated slot 130 Will be supported against the bar son when a tensile load is applied to the opening 162 by a threaded bolt or threaded bolt type connection. In each such embodiment, the opening 162 is accessible through the longitudinal elongated slot 130 or accessible through the slot upon removal of the removable cap portion 170. In some embodiments, the metal nut 160 includes an elastomeric spacer, for example, a spacer formed from an elastomeric open-cell foam or a closed cell foam bonded to one of the non-longitudinal sides of the nut . The elastomeric spacer 166 may be adhered to the nut using an adhesive such as a pressure sensitive adhesive and may be attached to the metal nut 160 to prevent unwanted sliding of the metal nut 160 within the channel 150. [ To increase the friction between the channel portion (140) and the channel portion (140). In another embodiment, the channel facing end 126 of the neck portion 120 may include a plurality of elastic fingers 127 configured to protrude into the longitudinal elongate channel 150. The resilient fingers 127 prevent movement of the metal nut 160 in the channel 150 but may be used to move the nut 150 in the channel 150 by applying a force to it, It will bend when using the tool and / or when the connecting element is placed before the tension of the connection. In other embodiments, a combination of these features may be used. Thus, the metal nut 160 can be manipulated to slide longitudinally in the channel 150, but it can be substantially prevented from sliding in the channel due to ancillary operation or gravity of the insert 100 during installation .

3, the mold 200 includes an insert 100 and at least a pair of metal reinforcement bars 210 which are joined to the channel portion 140 and the longitudinal Bracketed with the lightweight body 110 proximal to the elongate channel 150 (see FIG. 2). At least the portions of the metal reinforcement bar 210 proximal to the channel portion may be configured to extend parallel to the longitudinal axis of the longitudinal elongate channel 150. In some embodiments, the insert 100 brackets the metal reinforcement bar 210 with a wire, for example, in an X-shaped pattern that spans the opposite end of the channel portion 140 and the neck facing end 144 And is attached to the metal reinforcement vias 210 by wrapping the lightweight body 110 and the X pattern self intersects the middle path along the longitudinal elongate channel 150 on the lateral side of the channel portion 140 . Preferably, the metal reinforcement bar 210 is received within a plurality of clips 145 projecting outwardly from the channel portion 140. Each metal reinforcing bar 210 is thus clipped between a bearing surface 143 in the channel section 140 and one or more creeps 145 on each side of the channel section 140. The metal reinforcement bar 210 is disposed in a surrounding concrete frame, e. G., Opposite wall frame 220 (only one of which is shown in duplicate) and the channel 150 of insert 100 at depth & Below the planed surface of the concrete, which may be formed by the form part, or as shown, it is below the free surface of the concrete "S ". The removable cap 170 terminates at the proximal free surface of the concrete 230 and identifies the edges of the neck portion 120 of the cap proximal portion so that the cap Or by placing an upwardly projecting whisker 176 on or adjacent to the removable cap 170. The whiskers 176 may be disposed on the removable cap 170, as shown in FIG. The removable cap 170 may be subsequently removed to expose the metal nut to the connection to the threaded bolt or to the threaded bolt-type connection.

4, the mold 300 may include at least one support member or exemplary support member 230, such as the insert 100 and the previously described wall frame 220 . The insert 100 is secured directly to the support member 230 and the neck portion 120 is opposite the channel portion 140 disposed toward the formation surface. In one embodiment, the insert is secured directly to the member 230 using a plurality of stator 240 inserted through one or more outwardly projecting tabs 125, as described above. The elongate elongated slot 130 may be formed by a fit of the neck portion 120 toward the member 230 or by a removable cap 170 or by a gasket, a cork, a putty, a viscous grease, And can be substantially sealed from exposure to the concrete, such as by other means for forming the seal. 3, and / or as discussed above, the metal reinforcement bar 210 may also be secured to the insert 100 to reinforce the positioning of the insert and / The metal reinforcing bars 210 may be disposed on the metal reinforcing bar 210. The neck portion 120 opposite the channel portion 140 ends at the proximal formation surface of the concrete and identifies the edges of the neck portion 120 and / or the longitudinal elongated slot 130 opening of the forming surface, May be located by striking any concrete sheath formed on the removable cap 170 or the like, by identifying any removable cap 170. The slot opening for metal nut 160 may be used for threaded bolts or threaded bolt-type connections.

Although the present invention has been described in detail with reference to preferred embodiments, it is obvious that modifications and variations are possible without departing from the scope of the present invention.

Claims (20)

In a slotted insert for a concrete component,
As a non-metallic void former,
A neck portion defining a longitudinal elongated slot and having a first transverse width; And
A non-metallic lightweight body defining a longitudinal elongate channel and having a channel portion having a second lateral width that is significantly greater than the first lateral width; And
And a metal nut mounted within the channel, the metal nut having an opening and a third lateral width that is substantially greater than the first lateral width,
Wherein the longitudinal elongated slot and the longitudinal elongate channel are interconnected and aligned with one another such that the longitudinal axis of the slot and the longitudinal axis of the channel are parallel to one another, Accessible through slotted inserts. The method according to claim 1,
And the third lateral width is equal to the second lateral width. The method according to claim 1,
Wherein the neck portion and the channel portion are separate portions of the insert releasably interlocked with each other. The method of claim 3,
The channel facing end portion of the neck portion includes an outwardly projecting peripheral flange and the neck facing end portion of the channel portion includes an inwardly open circumferential track engaging the peripheral flange for mutual engagement of the neck portion and the channel portion together A slotted insert, comprising: 5. The method of claim 4,
Wherein the channel portion includes detachable halves, each half portion including a latch arm and a locking ramp, and one of the halves has a latching arm that engages the other of the halves, And a locking ramp of one of the halves is engageable with the other one of the latch arms of the halves. The method according to claim 1,
Further comprising a removable cap portion configured to seal the longitudinal elongate slot opposite the longitudinal elongate channel. The method according to claim 6,
Wherein the removable cap portion is a fragile portion of the neck portion formed by a thin web proximal to the periphery of the longitudinal elongate slot opposite the longitudinal elongate channel. The method according to claim 1,
The neck portion including an outwardly projecting peripheral flange opposite the channel facing end of the neck portion. 9. The method of claim 8,
Wherein the peripheral flange includes a plurality of outwardly projecting tabs projecting longitudinally from the neck portion opposite the channel facing end. The method according to claim 1,
The channel portion including a plurality of outwardly projecting clips configured to attach the insert to a metal reinforcement bar bracketing the channel portion. The method according to claim 1,
Wherein the metal nut is a rectangular nut. 12. The method of claim 11,
Wherein the channel portion includes a pair of longitudinally extending, transversely projecting bearing surfaces on opposite lateral sides of the channel portion, the metal nut having a pair of longitudinally extending portions on opposite lateral sides of the nut, Wherein the wing portions of the nut generally coincide with the bearing surfaces of the channel portion. 13. The method of claim 12,
The channel portion includes a plurality of outwardly projecting clips configured to attach an insert to a metal reinforcement bar bracketing the channel portion, the clips extending across the longitudinally extending, transversely projecting support surfaces of the channel portion Protruding, slotted insert. 12. The method of claim 11,
Wherein the channel facing end of the neck portion comprises a plurality of resilient fingers and wherein the resilient fingers are configured to protrude into the longitudinal elongate channel to impede movement of the metal nut. In the form part,
As an insert,
A nonmetallic neck portion forming a longitudinal elongated slot and having a first transverse width;
A nonmetallic channel portion forming a longitudinal elongate channel and having a second lateral width that is significantly greater than the first lateral width;
A metal nut mounted within the channel, the metal nut having an aperture and a third lateral width that is significantly larger than the first lateral width; And
And a removable cap portion configured to seal the longitudinal elongate slot opposite the longitudinal elongate channel,
The longitudinal elongated slot and the elongated elongate channel being interconnected and aligned with each other such that the longitudinal axis of the slot and the longitudinal axis of the channel are parallel to each other, The insert being accessible through the slot upon removal of the cap portion; And
Wherein the insert is attached to the pair of metal reinforcement bars, the pair of metal reinforcement bars bracketing the lightweight body in the longitudinal elongated channel proximal and extending parallel to the longitudinal axis of the channel, A die component, including a pair of metal reinforcement bars. 16. The method of claim 15,
Wherein the insert is attached to the pair of metal reinforcement bars through a plurality of clips projecting outwardly from the channel portion. 17. The method of claim 16,
Wherein the channel portion includes a pair of longitudinally extending, transversely projecting bearing surfaces on opposite lateral sides of the channel portion, the metal nut having a pair of longitudinally extending portions on opposite lateral sides of the nut, Wherein the wing portions of the nut generally coincide with the bearing surfaces of the channel portion. 18. The method of claim 17,
Said plurality of outwardly projecting clips projecting across each one of said longitudinally extending, laterally projecting support surfaces of said channel portion. In the form part,
As lightweight bodies,
A nonmetallic neck portion forming a longitudinal elongated slot and having a first transverse width;
A nonmetallic channel portion forming a longitudinal elongate channel and having a second lateral width that is significantly greater than the first lateral width; And
Wherein the longitudinal elongated slot and the elongated elongated channel are interconnected and aligned with each other, the elongated slot having a first lateral width and a second lateral width, The metal nut being accessible through the slot, wherein the longitudinal axis of the slot and the longitudinal axis of the channel are parallel to each other and the opening of the mounted metal nut is accessible through the slot;
Wherein the neck portion is attached to the forming member through a plurality of stator inserts through an outwardly projecting peripheral flange disposed opposite the channel facing end of the neck portion and into a forming member The mold component, 20. The method of claim 19,
Wherein the outwardly projecting peripheral flange comprises a plurality of outwardly projecting tabs projecting longitudinally from the neck portion opposite the channel facing end.

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