CA1166867A - Adjustable release stringer shore head with integral load carrying stringer - Google Patents
Adjustable release stringer shore head with integral load carrying stringerInfo
- Publication number
- CA1166867A CA1166867A CA000386295A CA386295A CA1166867A CA 1166867 A CA1166867 A CA 1166867A CA 000386295 A CA000386295 A CA 000386295A CA 386295 A CA386295 A CA 386295A CA 1166867 A CA1166867 A CA 1166867A
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- CA
- Canada
- Prior art keywords
- head
- stringer
- assembly
- shore
- release
- 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.)
- Expired
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Abstract
ABSTRACT
A concrete hardware assembly which includes a series of stringers and a series of slab support members for forming a deck. A group of release stringer shore head units each com-prising an adjustable stringer post shore and a multiple posi-tion release head. Each multiple position head is mounted upon an associated one of said post shores. The post shores and the heads are arranged for formation of an elevated slab and provide a support system therefor. The post shore has post shore adjustment means for moving it into and out of an extended leveled position. Each of the heads has a stringer support bracket for supporting the stringers between adjacently positioned ones of the heads. The bracket is supported on a base portion of said head. Opposite ends of the release head including a lower end are supported by the post shore. A shore head top plate is mounted on an upper end of said release head.
Release head adjustment means adjustably mounts said stringer support bracket and said top plate vertically relative to one another in any one of a series of selectable positions enabling the head and the stringer to be compatibly used with different types of the slab support members for forming a deck including 4 x 4 timber joist and plywood, aluminum beams and plywood, adjustable beams and plywood, and prefabricated form panels.
The release head adjustment means being releasable to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leav-ing a poured slab in a supported position on said release stringer shore head units.
A concrete hardware assembly which includes a series of stringers and a series of slab support members for forming a deck. A group of release stringer shore head units each com-prising an adjustable stringer post shore and a multiple posi-tion release head. Each multiple position head is mounted upon an associated one of said post shores. The post shores and the heads are arranged for formation of an elevated slab and provide a support system therefor. The post shore has post shore adjustment means for moving it into and out of an extended leveled position. Each of the heads has a stringer support bracket for supporting the stringers between adjacently positioned ones of the heads. The bracket is supported on a base portion of said head. Opposite ends of the release head including a lower end are supported by the post shore. A shore head top plate is mounted on an upper end of said release head.
Release head adjustment means adjustably mounts said stringer support bracket and said top plate vertically relative to one another in any one of a series of selectable positions enabling the head and the stringer to be compatibly used with different types of the slab support members for forming a deck including 4 x 4 timber joist and plywood, aluminum beams and plywood, adjustable beams and plywood, and prefabricated form panels.
The release head adjustment means being releasable to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leav-ing a poured slab in a supported position on said release stringer shore head units.
Description
~ ~6~
SPECIFICATION
The present invention relates to a concrete hardware assembly for supporting concrete deck forms in elevated posi-tions for the formation of concrete slabs. More specifically, the concrete hardware assembly has new and improvPd shore heads each having a mechanism which enabl~s the stringer support elevation to be raised or lowered rela~ive to a top surface of the shore heads. This feature enables the shore heads and the integral stringers to be compatible with any type of common usage deck forming materialJ such as 4 x 4 timber joist and plywood, adustable beams and plywood, steel jois~ and plywood, aluminum beams and plywood, or prefabricated form panels.
According to other features o the present invention, the mechanism for supporting the stringers and the supported deck forms is releasable without altering the slab load support provided by the shore heads. Thus, the stringers and the sup-ported deck forms can be removed and used elsewhere to reduce the number of stringers and deck forms required on a given job since they can be made available for quicker reuse cycling, and labor savings are obtainable since reshoring of the slab is unnecessary.
The shore head and companion stringer construction accomplishes certain performance characteristics in common with a Stringer-Release Shore Assembly, illust~ated in Uni~ed States Patent No. 3,430,910, but also incorporates an innova-tive mechanism for adjusting the stringer support elevation relative to the re~uired shore heigh~ elevation. Thi5 capability expands the app~ication potential for the system by making all its unique fea~ures compatible to support any eommon usage deck form materials, such as preabricated panels, lumber joist and plywood, aluminum or steel beams, and adjustable beams with plywood.
Up to the present time, the state of the art has been such that a given concrete hardware assembly for forming elevated decks has only had the capability of being used with a limited variety of slab support members and there has not been any concrete hardware assembly having the versatility of the one here disclosed for forming a deck including 4 x 4 timber joist and plywood, aluminum beams, and plywood, adjustable beams and plywood, and prefabricated form panels. Thus, with the new concrete hardware assembly, a contractor can use a variety of different slab support members rather than only a single type or a limited number o slab support members as before.
According to the present invention, it is an impor-tant object to provide a new and improved concrete hardware assembly that has a group of release stringer shore head units each with an adjustable stringer post shore and a multiple position release head enabling different types of slab support-ing members to be compatibly used with stringers carried by the multiple position release heads.
Another object of the present invention is to provide.
a new and improved concrete hardware assembly of the type where each assembly can be used with a number of different types o~ slab support members to increase the versatility of the hardware and to thereby lower operating costs and reduced labor.
An important featur~ of this invention is to provide a concrete hardware assembly including a series of stringers and a series of slab support members for forming a deck, a group of release s~ringer shore head units each com-prising an adjustable stringer post shore and a multiple position release head, each multiple position head being mounted upon an associated one of the post shores, the post shores and the heads being arranged for formation of an elevated slab and providing a support system therefor, the post shore having post shore adjustment means for moving it into and out of an extended leveled position, each of the heads having a stringer support bracket for supporting the stringers between adjacently positioned ones of the heads, the bracket being supported on a base portion of the release head, opposite ends of the release head including a lower end supported by the post shore and a shore head top plate mounted on an upper end of the release head, release head adjustment-.means adjustably mounting the stringer support bracket and said top plate vertically relative to one another in any one o a series o selectable positions enabling said head and said stringer to be compatibly used with different types of the slab support members for or~ing a deck including 4 x 4 ~imber joist and plywood, aluminum beams and plywood, adjustable beams and plywood, and prefabricated form panels, said release head adjustment means bei~g releasable to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on said re-lease stringer shore head units.
Other features of the invention involve the stringers being comprised o an I-beam shaped member having diagonal edges at opposite ends, channel shaped stringer support plates positioned at opposite ends of the stringers and secured there-:1 :16~8~ ~
with in unitary assembly, the support plates having ~onguereceiving slots, and the stringer support brackets each having a stringer positioning tongue engageable within the tongue receiving slot securing the stringer on the release head in an elevated position.
Still other features of the present invention concern the I-beam shaped member having ledge plates extending from its opposite ends, outer margins of the ledge plates having upturned fingers, the fingers being in gap relation relative to the I-beam shaped memberj the slab support member having ends engaged over the upturned fingers and lodged in gaps defined by the gap relationship and supported on the ledge plates.
Yet other features of the invention relate to the means for adjustably mounting the stringer support bracket and the top plate vertically relative to one another in a series of selectable positions comprising screw threads on the base portion of the head and with the support bracket being in threaded engagement therewith, a series of vertically spaced pin holes in the base portion and a stop pin removably securable within anyone of the pin holes, and a screw jack nut mounted in threaded assembly on the screws of the base portion with the screw jack nut serving to secure the stringer support bracket against the stop pin on the base portion of the head in locked assembly.
According to yet another and further feature of this invention the multiple position release head can be of the type that includes an extension tube in telescoped asse~bly with the base portion of the head, the extension having vertically spaced sets of holes, a stop pin e~tendable through any given ~ ~6~
set of holes or adjustment, the ramp plates secured ~o oppo-site sides of said base portion in ~ixed assembly and a hammPr wedge plate slidably mounted on said ramp plates and bearing against the stringer support bracke~ for urging the stringer support bracket in snug engagement with the stop pin, the hammer wedge plate being releasable upon being struck with a hammer causing the plate hammer release plate to be moved in an opposite direction on the ramp plates to enable the hammer wedge plate to be vertically dropped with the stringer support bracket ~o enable the stringers and the slab support members fonming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on the release stringer shore head unit.
ON THE DRAWINGS
FIG. 1 is an enlarged fragmentary partially sectioned view showing a prior art system for forming elevated concrete decks using load carrying stringer shore heads;
FIG. 2 is a reduced side fragmentary perspective view of a new and improved system or forming elevated concrete decks using new and i.mproved releasable stringer shore heads;
FIG. 3 is an enlarged partially sectioned fragment-ary view of the shore head system shown in FIG. 2 and with the dotted lines indicating various positions for the releasable stringer shore head;
FIG. 4 is an enlarged fragmentary vertical section view with parts shown in elevation as seen on the line IV-IV
looking in the direction indic~ted by the arrows in FIG. 3;
FIG. 5 is another vertical section taken on the line V-V looking in the direction indica~ed by the arrows as seen in FIG. 3;
1 ~6~6~
FIG. 6 is a fragmentary elevational view of a modified type of an adjustable release stringer shore head being adjusted to support adjustable horizontal beams from the stringer members for forming elevated concrete decks;
FIG. 7 is an elevational view of the adjustable release stringer shore head shown in FIG. 6, but adjusted for supporting prefabricated panel sections on the stringer members;
FIG. 8 is a view somewhat similar to FIG. 7, but illustrating the stringer shore head adJusted for supporting horizontal timbers from the stringer members;
FIG. 9 is similar to FIG. 8, but showing a somewhat modified form of the invention which is adjusted to support an aluminum beam system on stringer members for forming an ele-vated concrete deck;
FIG, 10 is an enlarged fragmentary broken away side view of a portion of the shore head shcwn in FIG. 9 as viewed on the lines X-X looking in the direction indicated by the arrows in FIG. 9;
FIG. 11 is an enlarged fragmentary partially sectioned view showing stilL another adjustable release stringer shore head with the components shown in full and dotted lines to show different adJusted positions;
FIG. 12 is an enlarged vertical view partially in section as seen in FIG. 11 on the line XII-XII looking in the direction by the arrow;
FIG. 13 is an exploded view of the components of the adjustable release s~ringer shore head illustrated in FIGS. 11 and 12;
FIG. 14 is an enlarged fra~mentary partially sectioned ~68~1 view of still another modified form of an adjustable release stringer shore head;
FIG. 15 is a partial sectional elevational view of an adjustable release stringer shore head showing several positions of said shore head;
FIG. 16 is a side eleva~ion of the adjustable release stringer shore head of FIG. 15;
FIG. 17 is a cross-sectional view of the adjustable release stringer shore head taken generally along the lines XVII-XVII of FIG. 15;
FIG. 18 is an enlarged partially sectioned fragment-ary view of a modified shore head system with a modified stringer construction and with the improved releasable stringer shore head shown in different positions as exemplifîed by the full and dotted lines;
FIG. 19 is a vertical section with par~s shown in elevation as seen on the line IXX-IXX loo~ing in the direction indicated by the arrows in FIG. 18; and FIG. 20 is an enlarged fragmentary perspective view of the stringer shown in FIG~. 18 and 19.
In FIG. 1, a prior art concrete hardware assembly 1 is illustrated. Here, a series of stringers 2 and a series o~
slab support members 3 are provided for forming a deck.
Stringer shore head units 4 are provided for supporting the stringers 2 and the slab suppor~ members 3. With this type of concrete hardware assembly, the shore head units 4 include a post shore S and a head 6. The post shore 5 has telescoped sleeves 5a and 5b which are adjustably secured by threads 5c so that the height of th~ post section 5 can be varied for positioning a top support surface 6a of the head 6.
~ 1668~
In order to support the stringers 2 on the head section, a releasable bracket 7 is mounted thereon. To this end, the head 6 h~s a stop 8 and the bracket 7 is held against the stop by a releasable sleeve 9. The position of the bracket 7 could not be varied with respect to top support surface 6a in that its position was always determined by the position of the stop 8. The stop 8 was fixedly mounted on the head 6. A space identified as X, located between a top surface 6a of head plate 6b and the bracket 7, constitutes a fixed 1~ invariable dimension. When it was desired to release the stringers 2 and the slab support members 3 from the concrete hardware assembly 1 after a concrete slab 5 had been poured, the sleeve fastener 9 would be disengaged and moved from the full line position shown at the left-hand side of FIG. 1 to the dotted line position shown at the right-hand side of FIG. 1.
In accordance with the present invention, the reference numeral 10 has been used to identify our new and improved concrete hardware assembly. The assem~ly 10 is adapted for supporting a series of stringers 11 and a series of slab support members 12 to provide a deck 13 on which the concrete slab S is adapted to be formed.
In accordance with important features of this inven-tion, a new and improved release stringer shore head unit 14 has been provided. This unit 14 includes an adjustable stringer post shore 15 and a multiple position release head 16.
The new multiple position release head 16 has been provided for use with different types of slab support systems as will be hereafter discussed in further detail. By providing a multiple position release head, dif~erent sized and different types of slab support members can be mounted on the same concrete hardware assembly in contrast to the prior art con-crete hardware assembly previously described in connection with FIG. 1 where only a Limited type of slab support m~mbers could be used with any given concre~e hardware assembly of the old type.
The post shore 15 is provided with an adjustment leveling device 18 in order to raise or lower the unit 14 with respect to other units so that upper ends of the units can be positioned in a common level plane relative to one another. The adjustment leveling device 18 can be of any suitable type which are well known in the art.
The multiple position release head 16 illustrated in FIG. 3 is provided with a stringer support bracket 19 which has stringer positioning tongues 20 positioned at opposite ends thereof. These tongues are engageable with stringer slots lla to enable the stringers to be supported at opposite ends on each head 16 on ad~acent release stringer shore head units 14.
The bracket 19 is supported on a base portion 21 of the head 16. Opposite ends 22 and 23 of the base portion 21 include the lower end 22 which is mounted upon and secured with an upper plate 24 of the post shore 15 by fasteners 25.
It will thus be seen that the head 16 includes a parallel sided or square shaped base portion which has been identified as 21 and an upper parallel sided or square tubular portion 26 that is telescoped inside of the base portion 21.
The upper end of the base portion 21 has a pair of horizontally aligned holes 27. The upper tubular head portion 26 has a series of (FIG. 4) vertlcally spaced pairs of holes 28 which are of the same diameter and are alignable with the holes 27 8 ~ ~
in the head portion. A pin 29 is provided for engagernent through the holes when the base portion 21 and the upper tubular head portion 26 are properly aligned relative to one another for enabling the head 16 and the stringer 11 to be compactably used with different types of the slab support members 12 for forming the depth. In FIG, 3, the head is shown as being provided with a shore head top plate and the position of the top plate 30 can be adjusted as sh~wn by the full and dotted lines in accordance with the hole setting between the base portion 21 and the tubular head portion 26 which is maintained by the pin 29 A cotter pin 31 can be used to maintain a reduced end 29a of the pin 29 from becoming dislodged It will thus be seen that when the pin 29 has been locked in place to provide the space adjustment desired between the stringer support bracket 19 and the shore head top plate 30, that the pin then also acts as the up stop for the stringer support bracket 19 In order to maintain the stringer support bracket 19 against the stop 29, the shore head units 14 and more partic-ularly the release head 16, is provided with a releasable meansto hold the stringer support brackets in a fixed position against the up stop 29 and which can also be released to allow the stringer support bracket 19 to drop so that the stringers 11 and the slab suppor~ members 12 can be readily detached from the shore head units 14 after the slab has been ormed, To this end, cam pins 32 and 33 are provided on oppo-site sides of the base portion 21 of the release head 16.
Cooperable with the cam pins 32 and 33 is a wedge plate 34 which has inclined camming surfaces 34a-34a which ride on the cam pins 32 and 33 to force the plate 34 into tight engage-~ 1&~8~
ment against the underside of the stringer support bra~ket until this bracket is firmly abutted against the stop pin 2g.
In order to dislodge the wedge plate 34, a hammer may be struck against reduced end 35 (FIG. 4) whereby the plate and its camming surfaces 34a-34a are caused to move in a reversed direction on the cam pins 32 and 33. It is in this way that the stringer support bracket can be disengaged from the stop 29 and dropped to allow the stringers 11 to be lifted off of the stringer positioning tongues 20-20.
From a consideration of FIGS. 3, 4 and 5 it will be seen that the stringers 11 include an I-beam shaped member 36.
Between opposite ends of the I-beam shaped member 36 are a pair of angles 37 and 38 which are secured in welded assembly with the member 36. These angles 37 and 38 in effect provide ledge plates 39 and 40 for supporting the slab support members 12. In order to insure against accidental disassembly of the slab support members 12 rom the ledge plates 39 and 40, a series of clips 41 are welded to the underside of the ledge plates 39 and 40 in horizontally spaced relation. These ~lips provide upwardly extending fingers which are positioned in gap relation relative to the I-beam shaped member 36. The slab support members 12 have a marginal frame 12a that is adapted to be engaged and secured in the gap by means of the fingers 41a.
Thus, when the stringer support bracket has been properly positioned on the head 16 of the shore head units 14, the strin~-ers 11 and the slab suppor~ members 12 can be so oriented with respect to the top surface of the shore head top plate 30 that the top surface of the slab support member 12 is then coplanar with the top surface of the shore head top plate 30.
In FIGS. 6, 7 and 8 is shown a modified type of a 6~67 concrete hardware assembly 15. Here the assembly 15 includes a series o~ stringers 51 which are essentially identical to the stringers 11 previously described. These stringers could also be of the type sh~wn in FIG~. 18, 19 and 20 where the preferred form of stringers are illustrated. In addition, a series of different types of slabs support members 52 are illustrated in FIGS. 5, 6 and 7. To this end, in FIG. 5, the slab support members 52 are in the form of adjustable horizontal beams 53 which include plywood sheets 54. In the embodiment shown in FIG. 7, the slab support members comprised panels with plywood sheets and for purposes of identification are illustrated as support members 52l. In FIG. 8, the support members are identified at 52'' and are in the form of 4 x 4 timber joist and plywood with the plywood being indicated as 55. It will thus be appreciated that with the hardware assem~ly 50, any number of different types of stringers and slab support members are adapted to be interchangeably used which is one o~
the important features and advantages o the present invention over the state of the art.
The concrete hardware assembly 50 shown in FIGS. 6, 7 and 8, when the concrete hardware assembly has been properly adjusted, the stringers 51 and the support members 52, 52', and 52'', all serve to provide a planar deck surface. With the type as shown in FIG. 7, a special strip type of piece of plywood is used as indicated at 56 and this plywood strip 56 is carried on top of and supported between release stringer shore head unit as generally identified at 57.
The shore head units 57 operate in much the same manner as the shore head units 14 previously described. The shore head units 57 differ from the shore head units 14 since no ~ ~6~
telescoping parallel sided tubular sections are employed as illustrated in FIG. 3. In this embodiment, the hardware assembly 50 includes adjustable stringer post shores 58 that are essentially identical to the post shores 15 except that a modified type of post shore adjustment device 59 is used in contrast to corresponding device 18 illustrated in FIG. 2.
The operation of the post shore adustment device S9 is function-ally the same as the one previously described and to this end the nut 59a is caused to turn on the threads 60 to cause the tubular portion 61 of the post shore to ride up and down into various adjusted positions as required. ~FIG. 6).
Thus, it will be observed that a main difference between the hardware assembly 50 shown in FIGS. 6, 7 and 8, 15 involves the multiple position release head indicated generally at 62. The multiple position release head 62 has external threads along the en~ire vertical dimension thereof and is indicated at 63. A base portion 64 of the release head is fastened at 65 onto the adjustable stringer post shore 58 in the same manner as previously described. An opposite end of the release head is provided with a shore head top plate 66.
Mounted upon the release head 63 is a rein~orced stringer bracket 67 carrying stringer positioning tongues 68 at opposite ends. This bracket coatcs with an upper slotted tubular sleeve 69 with the slot being indicated at 7 for co-action with up stop pin 71. The pin 71 can be secured in any one of a series of vertically spaced holes 72 (FIG. 8) posi-tioned along the vertical dimension of the release head 62.
Thus, when it is desired to ~ove the stringer support bracket 67 into an adjusted position, the end of stop pin 73 must be 1 16~867.
then engaged in the slot 70 on the slotted tubular sleeve 69.
The sleeve 69 freely floats on the stringer support bracket and a handled nut 75 positioned beneath the stringer support bracket is then manually turned to cause a sleeve or `collar ring 76, the stringer support bracket 67 and the upper slotted tubular sleeve 69 to all move in an upward direction against the up stop pin 71. Thereafter, the stringers 51 can be attached to the stringer positioning tongues 68 and the other components including the slab support members 52 or 52' or 52'' can be mounted on the stringers to complete the assembly preparatory to the pouring of slab. After the slab has been formed and when it is desired to remove the stringers and the slab support members 52 or 52' or 52'', the manually operable nut 75 is rotated in an opposite direction to cause the stringers 51 and the slab support members 52 to drop and to leave the top plate 66 of the shore head units 57 engaged in supporting relation against the formed slab.
From a review of FIGS. 6, 7 and 8, the versatility of the release stringer shore head units 57 can be observed.
In other words, where it is desired to use the type of slab support member 52 (FIG. 6), then the stringer support bracket can be moved into a position to meet the requirements for that type of a slab support member. Where another type o slab support member is to be used, such as the one shown at 52' (FIG. 7), or the one shown at 52'' (FIG. 8), then other adjustments can be made with respect to the positioning of the stringer support bracket 67 to allow for the variable sizes of the slab support members.
In FIG. 9 certain m~difications are shown and other components of the concrete hardware assembly remain the same as ~6~
previously described. To this extent, the release stringer shore head unit 57 shown in FIG. 9 is the same as the ones shown in FIGS. 6, 7 and 8, except that the manner of attach-ment of the adjustable stringer post shore 58 with the multiple position release heads 62 has been modified. ~ere a lower end of the release head is telescoped inside of tubular post section 61 and a pin type fastener 70 is used to connect the thus engaged telescoped members in assembly.
FIG. 9 also illustrates still another type of slab support member 71 which is in the form of a standard aluminum beam which are carried on top of the stringers 51.
An infinitely adjustable multiple position release head 75 is shown in FIG. 10. Here the construction of the release head is essentially the same as the release head 62 (FIGS. 6-9) with a set pin 76 being adapted to be turned through a hole 77 in a tubular sleeve 78 to provide an up stop position for a stringer support bracket 79. A n~t 80 with handles 81 is provided for clamping collar ring 82 against the bottom side of the stringer support bracket thus urging them against the up stop provided by the set screw 76 carried on the threaded sleeve 78.
In FIGS. 11, 12, and 13, a further type of a release stringer shore head unit 85 is partially shown in that the post shore is omitted and only a muli~ple position release head 86 is ill~strated. The post shore can be of the same type pre-viously shown and described hereîn. The release head 86 isquite similar to the release head that was previously discussed in connection with FIGS. 3, 4 and 5.
For the purpose of identification, ~he reference numberal 86 identifies a so-called wedge~type release h~ad.
In this embodiment, the multiple position release head 86 is 1 ~6&~
comprised of telescoping upper and lower tubular parallel-sided head sections 87 and 88. The upper section 88 has vertically spaced multiple up stop sets of pin holes 89 for cooperation with up stop headed pin 90. The pin 90 can be held in secured relation by means of the key 91. Coactive with the sections 87 and 88 is a stringer support bracket 92.
Mounted on the lower head section 88 are a pair o cam plates 93-93 which are provided with holes 94 that are alignable with a pair of holes 95 provided in the lower section 88.
A wedge plate 96 is cooperable with the other com-ponents and includes a U-shaped inclined cam plate 97 whirh is adapted to ride upon the plates 93-93 to cause the stringer support brackets 72 to be wedged tightly against the up stop pin 90 in much the same manner as was previously described in connection with the embodiments illustrated in FIGS. 2-5.
When it is desired to utilize the head 86 the operator must decide the relative position that he desires that the upper tubular head section 87 be positioned with partlcular reference to a top surface 98 of the top plate of the upper head sec-tion 87. ~en this determination has been made, the up stop pin 90 can be positioned with respect to the proper hole 89 in the upper section 87 and then upper and lower sections are eng~ged so that the holes 95 in the lower section 88 are properly aligned with the holes 89 in the upper section. After the components have all been assembled with the upper and lower head sections projecting through the stringPr support bracke~ 92 and the wedge plate 96, ~hen the wedge plate can be moved transversely of the head sections to cause ~he inclined wedging surfaces of the plate 97 to coact with the wedge plates 93-93 to effect snug engagement of the stringer support bracket 92 against the up stop. I~hen it is desired to disassemble the component6, a hammer can be struck against a reduced end 96a of the wedge plate to dislodge the components to allow the stringer support brackets to drop in the same manner previously described.
In FIG. 14 a still another type of a multiple position release head lO0 is illustrated. Here the release head includes a tubular lower head sec~ion lOl and a threaded upper head section 102 positioned in telescoped assembly therewith. The head lO0 also includes an up stop nut 103 that is in threaded engagement with the threaded upper head section 102. A stringer support bracket 104 is positioned beneath the up stop nut and the threaded upper head section 102 extends through a hole provided in the stringer support bracket 104. Located beneath the stringer support bracket 104 is a wedge plate 105 having cam surface 106 that coacts with a lower head section cam surface 106 to force the stringer support bracket in tight engagement against the up stop nut 103. Cotter pin 107 is pro-vided to fix the position of ~he up stop nut 103 on the threaded upper head section 102. A series of holes are provided at different intervals along the vertical dimension of the threaded upper head section to allow the up stop ~ut 103 to be fixed in different selectable positions along the vertical dimension of the threaded upper head section 102.
In FIGS. 15, 16 and 17, still another form o~ a multiple position release head 115 is illustrated. Here the head 115 includes a single parallel-sided tubular section 115a ha~ing vertically spaced sets o~ up stop holes 116 provided on opposing sides of the parallel sided tubular section 115a.
- 17 ~
8 ~ 7 Cooperable with the holes is a headed up stop pln 117. Mounted on other opposed sides of the parallel-sided tubular section are a series of vertically spaced reactive pins 118. Each of the pins is secured in a position at right angles to a hori-zontal axis through up stop holes 116 with the pins each havingopposite ends 118a-118a projecting externally of the tubular parallel-sided head section 115a. The pin 117 is secured by cotter pin 117a.
Coactive with the up stop pin is a stringer support bracket 119 and a wedge plate 120. The construction of the stringer support bracket 119 and the wedge plate 120 is of the same type previously described. The wedge pla~e bracket has an inclined camming surface 121 that coacts with the camming surfaces provided by the pin ends 118a for causing the stringer support bracket to be wedged in tight assembly against the up stop pin 117 and to be held in such position until released.
The wedge plate has a reduced end 120a that can be struck with a hammer to effect disengagement of the stringer support bracket and the wedge plate to allow the stringer support bracket to drop vertically relative to the up stop pin 117 to effect disengagement of the components in the same manner as previously discussed herein.
In FIGS. 18, 19 and 20, a modified concrete hardware assembly 125 is illustrated. The assembly includes a series of modified stringers 126. A series of slab support members are shown in assembly with the stringer 12~. The slab support members can be of any type as previously disclosed and described herein. Cooperable with the stringer and the slab support members are a series of stringer shore head units 128.
The units 128 can be of any of the types previously disclosed ~ lB68~
and discussed herein and as illustrated are identical to the release stringer shore head units 14 shown in FIGS. 2-5.
The stringer construction 126 shown here i9 the pre-ferred form and is simplified in that it is manufactured from fewer components since the clips 41 shown in FIG. 3 are elimin-ated and replaced by upturned fingers 129 which fingers serve the same purpose for securing the slab support members. To this end the slab support members each have ends engaged over the fingers and lodged in the gaps defined by the gap relation-ships between the fingers and the I-beam and the slab support members are carried on the ledger plates or ledger angles 130.
It will further be noted that the stringer 126 has diagnoal edges 131 at opposlte ends of the I-beam shaped member. This same stringer has flat shaped upper and lower longitudinally extending flanges 132 and 133 with the upper flange being longer than the lower flange. The channel-shaped stringer support plates are secured in welded assembly with the underside of upper longitudinally extending flange 132. In vlew of the shape of the diagonal edges 131 the channel-shaped stringer support plates can be positioned in a partially telescoped fitted engagement with the I-beam shaped member and thereafter be welded in assembly together. Preferably the channel-shaped stringer support plates 134 are each pro-vided with a relatively wide pair of flat marginal flanges ~5 135-135 which have top surfaces that are coplanar with the top surfaces of the ledge plates 130-130. With this con-struc~ion, the slab support members can be supported on the same horizontal plane along the entire length of the ledge plates of the stringers including the marginal flanges 135-135 o the channel-shaped stringer support plates. These flanges 135-135 6 ~6~
provide a broader base to support the slab support members from only one side to resist tipping, if desired.
It will further be seen from a consideration of FIGS. 18, 19 and 20, that the channel-shaped stringer support plates are provided with tongue receiving slots 136 for receiving the tongues of the stringer support bracket.
SPECIFICATION
The present invention relates to a concrete hardware assembly for supporting concrete deck forms in elevated posi-tions for the formation of concrete slabs. More specifically, the concrete hardware assembly has new and improvPd shore heads each having a mechanism which enabl~s the stringer support elevation to be raised or lowered rela~ive to a top surface of the shore heads. This feature enables the shore heads and the integral stringers to be compatible with any type of common usage deck forming materialJ such as 4 x 4 timber joist and plywood, adustable beams and plywood, steel jois~ and plywood, aluminum beams and plywood, or prefabricated form panels.
According to other features o the present invention, the mechanism for supporting the stringers and the supported deck forms is releasable without altering the slab load support provided by the shore heads. Thus, the stringers and the sup-ported deck forms can be removed and used elsewhere to reduce the number of stringers and deck forms required on a given job since they can be made available for quicker reuse cycling, and labor savings are obtainable since reshoring of the slab is unnecessary.
The shore head and companion stringer construction accomplishes certain performance characteristics in common with a Stringer-Release Shore Assembly, illust~ated in Uni~ed States Patent No. 3,430,910, but also incorporates an innova-tive mechanism for adjusting the stringer support elevation relative to the re~uired shore heigh~ elevation. Thi5 capability expands the app~ication potential for the system by making all its unique fea~ures compatible to support any eommon usage deck form materials, such as preabricated panels, lumber joist and plywood, aluminum or steel beams, and adjustable beams with plywood.
Up to the present time, the state of the art has been such that a given concrete hardware assembly for forming elevated decks has only had the capability of being used with a limited variety of slab support members and there has not been any concrete hardware assembly having the versatility of the one here disclosed for forming a deck including 4 x 4 timber joist and plywood, aluminum beams, and plywood, adjustable beams and plywood, and prefabricated form panels. Thus, with the new concrete hardware assembly, a contractor can use a variety of different slab support members rather than only a single type or a limited number o slab support members as before.
According to the present invention, it is an impor-tant object to provide a new and improved concrete hardware assembly that has a group of release stringer shore head units each with an adjustable stringer post shore and a multiple position release head enabling different types of slab support-ing members to be compatibly used with stringers carried by the multiple position release heads.
Another object of the present invention is to provide.
a new and improved concrete hardware assembly of the type where each assembly can be used with a number of different types o~ slab support members to increase the versatility of the hardware and to thereby lower operating costs and reduced labor.
An important featur~ of this invention is to provide a concrete hardware assembly including a series of stringers and a series of slab support members for forming a deck, a group of release s~ringer shore head units each com-prising an adjustable stringer post shore and a multiple position release head, each multiple position head being mounted upon an associated one of the post shores, the post shores and the heads being arranged for formation of an elevated slab and providing a support system therefor, the post shore having post shore adjustment means for moving it into and out of an extended leveled position, each of the heads having a stringer support bracket for supporting the stringers between adjacently positioned ones of the heads, the bracket being supported on a base portion of the release head, opposite ends of the release head including a lower end supported by the post shore and a shore head top plate mounted on an upper end of the release head, release head adjustment-.means adjustably mounting the stringer support bracket and said top plate vertically relative to one another in any one o a series o selectable positions enabling said head and said stringer to be compatibly used with different types of the slab support members for or~ing a deck including 4 x 4 ~imber joist and plywood, aluminum beams and plywood, adjustable beams and plywood, and prefabricated form panels, said release head adjustment means bei~g releasable to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on said re-lease stringer shore head units.
Other features of the invention involve the stringers being comprised o an I-beam shaped member having diagonal edges at opposite ends, channel shaped stringer support plates positioned at opposite ends of the stringers and secured there-:1 :16~8~ ~
with in unitary assembly, the support plates having ~onguereceiving slots, and the stringer support brackets each having a stringer positioning tongue engageable within the tongue receiving slot securing the stringer on the release head in an elevated position.
Still other features of the present invention concern the I-beam shaped member having ledge plates extending from its opposite ends, outer margins of the ledge plates having upturned fingers, the fingers being in gap relation relative to the I-beam shaped memberj the slab support member having ends engaged over the upturned fingers and lodged in gaps defined by the gap relationship and supported on the ledge plates.
Yet other features of the invention relate to the means for adjustably mounting the stringer support bracket and the top plate vertically relative to one another in a series of selectable positions comprising screw threads on the base portion of the head and with the support bracket being in threaded engagement therewith, a series of vertically spaced pin holes in the base portion and a stop pin removably securable within anyone of the pin holes, and a screw jack nut mounted in threaded assembly on the screws of the base portion with the screw jack nut serving to secure the stringer support bracket against the stop pin on the base portion of the head in locked assembly.
According to yet another and further feature of this invention the multiple position release head can be of the type that includes an extension tube in telescoped asse~bly with the base portion of the head, the extension having vertically spaced sets of holes, a stop pin e~tendable through any given ~ ~6~
set of holes or adjustment, the ramp plates secured ~o oppo-site sides of said base portion in ~ixed assembly and a hammPr wedge plate slidably mounted on said ramp plates and bearing against the stringer support bracke~ for urging the stringer support bracket in snug engagement with the stop pin, the hammer wedge plate being releasable upon being struck with a hammer causing the plate hammer release plate to be moved in an opposite direction on the ramp plates to enable the hammer wedge plate to be vertically dropped with the stringer support bracket ~o enable the stringers and the slab support members fonming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on the release stringer shore head unit.
ON THE DRAWINGS
FIG. 1 is an enlarged fragmentary partially sectioned view showing a prior art system for forming elevated concrete decks using load carrying stringer shore heads;
FIG. 2 is a reduced side fragmentary perspective view of a new and improved system or forming elevated concrete decks using new and i.mproved releasable stringer shore heads;
FIG. 3 is an enlarged partially sectioned fragment-ary view of the shore head system shown in FIG. 2 and with the dotted lines indicating various positions for the releasable stringer shore head;
FIG. 4 is an enlarged fragmentary vertical section view with parts shown in elevation as seen on the line IV-IV
looking in the direction indic~ted by the arrows in FIG. 3;
FIG. 5 is another vertical section taken on the line V-V looking in the direction indica~ed by the arrows as seen in FIG. 3;
1 ~6~6~
FIG. 6 is a fragmentary elevational view of a modified type of an adjustable release stringer shore head being adjusted to support adjustable horizontal beams from the stringer members for forming elevated concrete decks;
FIG. 7 is an elevational view of the adjustable release stringer shore head shown in FIG. 6, but adjusted for supporting prefabricated panel sections on the stringer members;
FIG. 8 is a view somewhat similar to FIG. 7, but illustrating the stringer shore head adJusted for supporting horizontal timbers from the stringer members;
FIG. 9 is similar to FIG. 8, but showing a somewhat modified form of the invention which is adjusted to support an aluminum beam system on stringer members for forming an ele-vated concrete deck;
FIG, 10 is an enlarged fragmentary broken away side view of a portion of the shore head shcwn in FIG. 9 as viewed on the lines X-X looking in the direction indicated by the arrows in FIG. 9;
FIG. 11 is an enlarged fragmentary partially sectioned view showing stilL another adjustable release stringer shore head with the components shown in full and dotted lines to show different adJusted positions;
FIG. 12 is an enlarged vertical view partially in section as seen in FIG. 11 on the line XII-XII looking in the direction by the arrow;
FIG. 13 is an exploded view of the components of the adjustable release s~ringer shore head illustrated in FIGS. 11 and 12;
FIG. 14 is an enlarged fra~mentary partially sectioned ~68~1 view of still another modified form of an adjustable release stringer shore head;
FIG. 15 is a partial sectional elevational view of an adjustable release stringer shore head showing several positions of said shore head;
FIG. 16 is a side eleva~ion of the adjustable release stringer shore head of FIG. 15;
FIG. 17 is a cross-sectional view of the adjustable release stringer shore head taken generally along the lines XVII-XVII of FIG. 15;
FIG. 18 is an enlarged partially sectioned fragment-ary view of a modified shore head system with a modified stringer construction and with the improved releasable stringer shore head shown in different positions as exemplifîed by the full and dotted lines;
FIG. 19 is a vertical section with par~s shown in elevation as seen on the line IXX-IXX loo~ing in the direction indicated by the arrows in FIG. 18; and FIG. 20 is an enlarged fragmentary perspective view of the stringer shown in FIG~. 18 and 19.
In FIG. 1, a prior art concrete hardware assembly 1 is illustrated. Here, a series of stringers 2 and a series o~
slab support members 3 are provided for forming a deck.
Stringer shore head units 4 are provided for supporting the stringers 2 and the slab suppor~ members 3. With this type of concrete hardware assembly, the shore head units 4 include a post shore S and a head 6. The post shore 5 has telescoped sleeves 5a and 5b which are adjustably secured by threads 5c so that the height of th~ post section 5 can be varied for positioning a top support surface 6a of the head 6.
~ 1668~
In order to support the stringers 2 on the head section, a releasable bracket 7 is mounted thereon. To this end, the head 6 h~s a stop 8 and the bracket 7 is held against the stop by a releasable sleeve 9. The position of the bracket 7 could not be varied with respect to top support surface 6a in that its position was always determined by the position of the stop 8. The stop 8 was fixedly mounted on the head 6. A space identified as X, located between a top surface 6a of head plate 6b and the bracket 7, constitutes a fixed 1~ invariable dimension. When it was desired to release the stringers 2 and the slab support members 3 from the concrete hardware assembly 1 after a concrete slab 5 had been poured, the sleeve fastener 9 would be disengaged and moved from the full line position shown at the left-hand side of FIG. 1 to the dotted line position shown at the right-hand side of FIG. 1.
In accordance with the present invention, the reference numeral 10 has been used to identify our new and improved concrete hardware assembly. The assem~ly 10 is adapted for supporting a series of stringers 11 and a series of slab support members 12 to provide a deck 13 on which the concrete slab S is adapted to be formed.
In accordance with important features of this inven-tion, a new and improved release stringer shore head unit 14 has been provided. This unit 14 includes an adjustable stringer post shore 15 and a multiple position release head 16.
The new multiple position release head 16 has been provided for use with different types of slab support systems as will be hereafter discussed in further detail. By providing a multiple position release head, dif~erent sized and different types of slab support members can be mounted on the same concrete hardware assembly in contrast to the prior art con-crete hardware assembly previously described in connection with FIG. 1 where only a Limited type of slab support m~mbers could be used with any given concre~e hardware assembly of the old type.
The post shore 15 is provided with an adjustment leveling device 18 in order to raise or lower the unit 14 with respect to other units so that upper ends of the units can be positioned in a common level plane relative to one another. The adjustment leveling device 18 can be of any suitable type which are well known in the art.
The multiple position release head 16 illustrated in FIG. 3 is provided with a stringer support bracket 19 which has stringer positioning tongues 20 positioned at opposite ends thereof. These tongues are engageable with stringer slots lla to enable the stringers to be supported at opposite ends on each head 16 on ad~acent release stringer shore head units 14.
The bracket 19 is supported on a base portion 21 of the head 16. Opposite ends 22 and 23 of the base portion 21 include the lower end 22 which is mounted upon and secured with an upper plate 24 of the post shore 15 by fasteners 25.
It will thus be seen that the head 16 includes a parallel sided or square shaped base portion which has been identified as 21 and an upper parallel sided or square tubular portion 26 that is telescoped inside of the base portion 21.
The upper end of the base portion 21 has a pair of horizontally aligned holes 27. The upper tubular head portion 26 has a series of (FIG. 4) vertlcally spaced pairs of holes 28 which are of the same diameter and are alignable with the holes 27 8 ~ ~
in the head portion. A pin 29 is provided for engagernent through the holes when the base portion 21 and the upper tubular head portion 26 are properly aligned relative to one another for enabling the head 16 and the stringer 11 to be compactably used with different types of the slab support members 12 for forming the depth. In FIG, 3, the head is shown as being provided with a shore head top plate and the position of the top plate 30 can be adjusted as sh~wn by the full and dotted lines in accordance with the hole setting between the base portion 21 and the tubular head portion 26 which is maintained by the pin 29 A cotter pin 31 can be used to maintain a reduced end 29a of the pin 29 from becoming dislodged It will thus be seen that when the pin 29 has been locked in place to provide the space adjustment desired between the stringer support bracket 19 and the shore head top plate 30, that the pin then also acts as the up stop for the stringer support bracket 19 In order to maintain the stringer support bracket 19 against the stop 29, the shore head units 14 and more partic-ularly the release head 16, is provided with a releasable meansto hold the stringer support brackets in a fixed position against the up stop 29 and which can also be released to allow the stringer support bracket 19 to drop so that the stringers 11 and the slab suppor~ members 12 can be readily detached from the shore head units 14 after the slab has been ormed, To this end, cam pins 32 and 33 are provided on oppo-site sides of the base portion 21 of the release head 16.
Cooperable with the cam pins 32 and 33 is a wedge plate 34 which has inclined camming surfaces 34a-34a which ride on the cam pins 32 and 33 to force the plate 34 into tight engage-~ 1&~8~
ment against the underside of the stringer support bra~ket until this bracket is firmly abutted against the stop pin 2g.
In order to dislodge the wedge plate 34, a hammer may be struck against reduced end 35 (FIG. 4) whereby the plate and its camming surfaces 34a-34a are caused to move in a reversed direction on the cam pins 32 and 33. It is in this way that the stringer support bracket can be disengaged from the stop 29 and dropped to allow the stringers 11 to be lifted off of the stringer positioning tongues 20-20.
From a consideration of FIGS. 3, 4 and 5 it will be seen that the stringers 11 include an I-beam shaped member 36.
Between opposite ends of the I-beam shaped member 36 are a pair of angles 37 and 38 which are secured in welded assembly with the member 36. These angles 37 and 38 in effect provide ledge plates 39 and 40 for supporting the slab support members 12. In order to insure against accidental disassembly of the slab support members 12 rom the ledge plates 39 and 40, a series of clips 41 are welded to the underside of the ledge plates 39 and 40 in horizontally spaced relation. These ~lips provide upwardly extending fingers which are positioned in gap relation relative to the I-beam shaped member 36. The slab support members 12 have a marginal frame 12a that is adapted to be engaged and secured in the gap by means of the fingers 41a.
Thus, when the stringer support bracket has been properly positioned on the head 16 of the shore head units 14, the strin~-ers 11 and the slab suppor~ members 12 can be so oriented with respect to the top surface of the shore head top plate 30 that the top surface of the slab support member 12 is then coplanar with the top surface of the shore head top plate 30.
In FIGS. 6, 7 and 8 is shown a modified type of a 6~67 concrete hardware assembly 15. Here the assembly 15 includes a series o~ stringers 51 which are essentially identical to the stringers 11 previously described. These stringers could also be of the type sh~wn in FIG~. 18, 19 and 20 where the preferred form of stringers are illustrated. In addition, a series of different types of slabs support members 52 are illustrated in FIGS. 5, 6 and 7. To this end, in FIG. 5, the slab support members 52 are in the form of adjustable horizontal beams 53 which include plywood sheets 54. In the embodiment shown in FIG. 7, the slab support members comprised panels with plywood sheets and for purposes of identification are illustrated as support members 52l. In FIG. 8, the support members are identified at 52'' and are in the form of 4 x 4 timber joist and plywood with the plywood being indicated as 55. It will thus be appreciated that with the hardware assem~ly 50, any number of different types of stringers and slab support members are adapted to be interchangeably used which is one o~
the important features and advantages o the present invention over the state of the art.
The concrete hardware assembly 50 shown in FIGS. 6, 7 and 8, when the concrete hardware assembly has been properly adjusted, the stringers 51 and the support members 52, 52', and 52'', all serve to provide a planar deck surface. With the type as shown in FIG. 7, a special strip type of piece of plywood is used as indicated at 56 and this plywood strip 56 is carried on top of and supported between release stringer shore head unit as generally identified at 57.
The shore head units 57 operate in much the same manner as the shore head units 14 previously described. The shore head units 57 differ from the shore head units 14 since no ~ ~6~
telescoping parallel sided tubular sections are employed as illustrated in FIG. 3. In this embodiment, the hardware assembly 50 includes adjustable stringer post shores 58 that are essentially identical to the post shores 15 except that a modified type of post shore adjustment device 59 is used in contrast to corresponding device 18 illustrated in FIG. 2.
The operation of the post shore adustment device S9 is function-ally the same as the one previously described and to this end the nut 59a is caused to turn on the threads 60 to cause the tubular portion 61 of the post shore to ride up and down into various adjusted positions as required. ~FIG. 6).
Thus, it will be observed that a main difference between the hardware assembly 50 shown in FIGS. 6, 7 and 8, 15 involves the multiple position release head indicated generally at 62. The multiple position release head 62 has external threads along the en~ire vertical dimension thereof and is indicated at 63. A base portion 64 of the release head is fastened at 65 onto the adjustable stringer post shore 58 in the same manner as previously described. An opposite end of the release head is provided with a shore head top plate 66.
Mounted upon the release head 63 is a rein~orced stringer bracket 67 carrying stringer positioning tongues 68 at opposite ends. This bracket coatcs with an upper slotted tubular sleeve 69 with the slot being indicated at 7 for co-action with up stop pin 71. The pin 71 can be secured in any one of a series of vertically spaced holes 72 (FIG. 8) posi-tioned along the vertical dimension of the release head 62.
Thus, when it is desired to ~ove the stringer support bracket 67 into an adjusted position, the end of stop pin 73 must be 1 16~867.
then engaged in the slot 70 on the slotted tubular sleeve 69.
The sleeve 69 freely floats on the stringer support bracket and a handled nut 75 positioned beneath the stringer support bracket is then manually turned to cause a sleeve or `collar ring 76, the stringer support bracket 67 and the upper slotted tubular sleeve 69 to all move in an upward direction against the up stop pin 71. Thereafter, the stringers 51 can be attached to the stringer positioning tongues 68 and the other components including the slab support members 52 or 52' or 52'' can be mounted on the stringers to complete the assembly preparatory to the pouring of slab. After the slab has been formed and when it is desired to remove the stringers and the slab support members 52 or 52' or 52'', the manually operable nut 75 is rotated in an opposite direction to cause the stringers 51 and the slab support members 52 to drop and to leave the top plate 66 of the shore head units 57 engaged in supporting relation against the formed slab.
From a review of FIGS. 6, 7 and 8, the versatility of the release stringer shore head units 57 can be observed.
In other words, where it is desired to use the type of slab support member 52 (FIG. 6), then the stringer support bracket can be moved into a position to meet the requirements for that type of a slab support member. Where another type o slab support member is to be used, such as the one shown at 52' (FIG. 7), or the one shown at 52'' (FIG. 8), then other adjustments can be made with respect to the positioning of the stringer support bracket 67 to allow for the variable sizes of the slab support members.
In FIG. 9 certain m~difications are shown and other components of the concrete hardware assembly remain the same as ~6~
previously described. To this extent, the release stringer shore head unit 57 shown in FIG. 9 is the same as the ones shown in FIGS. 6, 7 and 8, except that the manner of attach-ment of the adjustable stringer post shore 58 with the multiple position release heads 62 has been modified. ~ere a lower end of the release head is telescoped inside of tubular post section 61 and a pin type fastener 70 is used to connect the thus engaged telescoped members in assembly.
FIG. 9 also illustrates still another type of slab support member 71 which is in the form of a standard aluminum beam which are carried on top of the stringers 51.
An infinitely adjustable multiple position release head 75 is shown in FIG. 10. Here the construction of the release head is essentially the same as the release head 62 (FIGS. 6-9) with a set pin 76 being adapted to be turned through a hole 77 in a tubular sleeve 78 to provide an up stop position for a stringer support bracket 79. A n~t 80 with handles 81 is provided for clamping collar ring 82 against the bottom side of the stringer support bracket thus urging them against the up stop provided by the set screw 76 carried on the threaded sleeve 78.
In FIGS. 11, 12, and 13, a further type of a release stringer shore head unit 85 is partially shown in that the post shore is omitted and only a muli~ple position release head 86 is ill~strated. The post shore can be of the same type pre-viously shown and described hereîn. The release head 86 isquite similar to the release head that was previously discussed in connection with FIGS. 3, 4 and 5.
For the purpose of identification, ~he reference numberal 86 identifies a so-called wedge~type release h~ad.
In this embodiment, the multiple position release head 86 is 1 ~6&~
comprised of telescoping upper and lower tubular parallel-sided head sections 87 and 88. The upper section 88 has vertically spaced multiple up stop sets of pin holes 89 for cooperation with up stop headed pin 90. The pin 90 can be held in secured relation by means of the key 91. Coactive with the sections 87 and 88 is a stringer support bracket 92.
Mounted on the lower head section 88 are a pair o cam plates 93-93 which are provided with holes 94 that are alignable with a pair of holes 95 provided in the lower section 88.
A wedge plate 96 is cooperable with the other com-ponents and includes a U-shaped inclined cam plate 97 whirh is adapted to ride upon the plates 93-93 to cause the stringer support brackets 72 to be wedged tightly against the up stop pin 90 in much the same manner as was previously described in connection with the embodiments illustrated in FIGS. 2-5.
When it is desired to utilize the head 86 the operator must decide the relative position that he desires that the upper tubular head section 87 be positioned with partlcular reference to a top surface 98 of the top plate of the upper head sec-tion 87. ~en this determination has been made, the up stop pin 90 can be positioned with respect to the proper hole 89 in the upper section 87 and then upper and lower sections are eng~ged so that the holes 95 in the lower section 88 are properly aligned with the holes 89 in the upper section. After the components have all been assembled with the upper and lower head sections projecting through the stringPr support bracke~ 92 and the wedge plate 96, ~hen the wedge plate can be moved transversely of the head sections to cause ~he inclined wedging surfaces of the plate 97 to coact with the wedge plates 93-93 to effect snug engagement of the stringer support bracket 92 against the up stop. I~hen it is desired to disassemble the component6, a hammer can be struck against a reduced end 96a of the wedge plate to dislodge the components to allow the stringer support brackets to drop in the same manner previously described.
In FIG. 14 a still another type of a multiple position release head lO0 is illustrated. Here the release head includes a tubular lower head sec~ion lOl and a threaded upper head section 102 positioned in telescoped assembly therewith. The head lO0 also includes an up stop nut 103 that is in threaded engagement with the threaded upper head section 102. A stringer support bracket 104 is positioned beneath the up stop nut and the threaded upper head section 102 extends through a hole provided in the stringer support bracket 104. Located beneath the stringer support bracket 104 is a wedge plate 105 having cam surface 106 that coacts with a lower head section cam surface 106 to force the stringer support bracket in tight engagement against the up stop nut 103. Cotter pin 107 is pro-vided to fix the position of ~he up stop nut 103 on the threaded upper head section 102. A series of holes are provided at different intervals along the vertical dimension of the threaded upper head section to allow the up stop ~ut 103 to be fixed in different selectable positions along the vertical dimension of the threaded upper head section 102.
In FIGS. 15, 16 and 17, still another form o~ a multiple position release head 115 is illustrated. Here the head 115 includes a single parallel-sided tubular section 115a ha~ing vertically spaced sets o~ up stop holes 116 provided on opposing sides of the parallel sided tubular section 115a.
- 17 ~
8 ~ 7 Cooperable with the holes is a headed up stop pln 117. Mounted on other opposed sides of the parallel-sided tubular section are a series of vertically spaced reactive pins 118. Each of the pins is secured in a position at right angles to a hori-zontal axis through up stop holes 116 with the pins each havingopposite ends 118a-118a projecting externally of the tubular parallel-sided head section 115a. The pin 117 is secured by cotter pin 117a.
Coactive with the up stop pin is a stringer support bracket 119 and a wedge plate 120. The construction of the stringer support bracket 119 and the wedge plate 120 is of the same type previously described. The wedge pla~e bracket has an inclined camming surface 121 that coacts with the camming surfaces provided by the pin ends 118a for causing the stringer support bracket to be wedged in tight assembly against the up stop pin 117 and to be held in such position until released.
The wedge plate has a reduced end 120a that can be struck with a hammer to effect disengagement of the stringer support bracket and the wedge plate to allow the stringer support bracket to drop vertically relative to the up stop pin 117 to effect disengagement of the components in the same manner as previously discussed herein.
In FIGS. 18, 19 and 20, a modified concrete hardware assembly 125 is illustrated. The assembly includes a series of modified stringers 126. A series of slab support members are shown in assembly with the stringer 12~. The slab support members can be of any type as previously disclosed and described herein. Cooperable with the stringer and the slab support members are a series of stringer shore head units 128.
The units 128 can be of any of the types previously disclosed ~ lB68~
and discussed herein and as illustrated are identical to the release stringer shore head units 14 shown in FIGS. 2-5.
The stringer construction 126 shown here i9 the pre-ferred form and is simplified in that it is manufactured from fewer components since the clips 41 shown in FIG. 3 are elimin-ated and replaced by upturned fingers 129 which fingers serve the same purpose for securing the slab support members. To this end the slab support members each have ends engaged over the fingers and lodged in the gaps defined by the gap relation-ships between the fingers and the I-beam and the slab support members are carried on the ledger plates or ledger angles 130.
It will further be noted that the stringer 126 has diagnoal edges 131 at opposlte ends of the I-beam shaped member. This same stringer has flat shaped upper and lower longitudinally extending flanges 132 and 133 with the upper flange being longer than the lower flange. The channel-shaped stringer support plates are secured in welded assembly with the underside of upper longitudinally extending flange 132. In vlew of the shape of the diagonal edges 131 the channel-shaped stringer support plates can be positioned in a partially telescoped fitted engagement with the I-beam shaped member and thereafter be welded in assembly together. Preferably the channel-shaped stringer support plates 134 are each pro-vided with a relatively wide pair of flat marginal flanges ~5 135-135 which have top surfaces that are coplanar with the top surfaces of the ledge plates 130-130. With this con-struc~ion, the slab support members can be supported on the same horizontal plane along the entire length of the ledge plates of the stringers including the marginal flanges 135-135 o the channel-shaped stringer support plates. These flanges 135-135 6 ~6~
provide a broader base to support the slab support members from only one side to resist tipping, if desired.
It will further be seen from a consideration of FIGS. 18, 19 and 20, that the channel-shaped stringer support plates are provided with tongue receiving slots 136 for receiving the tongues of the stringer support bracket.
Claims (9)
1. In a concrete hardware assembly including a series of stringers and a series of slab support members for forming a deck, the improvement of a group of release stringer shore head units each comprising an adjustable stringer post shore and a multiple position release head,each multiple position head being mounted upon an associated one of said post shores, the post shores and the heads being arranged for formation of an elevated slab and providing a support system therefor, said post shore having post shore adjustment means for moving it into and out of an extended leveled position, each of said heads having a stringer support bracket for supporting the stringers between adjacently positioned ones of the heads, opposite ends of the release head including a lower end supported by said post shore and a shore head top plate mounted on an upper end of said release head, release head adjustment means adjustably mounting said stringer support bracket and said top plate vertically relative to one another in any one of a series of selectable positions enabling said head and said stringer to be compatibly used with different types of the slab support members for forming a deck including 4 x 4 timber joist and plywood, aluminum beams and plywood, adjustable beams and plywood, and prefabricated form panels, said release head adjustment means being releasable to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on said release stringer shore head units.
2. The concrete hardware assembly of claim 1 further characterized by the stringers being comprised of an I-beam shaped member having diagonal edges at opposite ends, channel shaped stringer support plates positioned at opposite ends of said stringers and secured therewith in unitary assembly, said support plates having tongue receiving slots, and said stringer support brackets each having a stringer positioning tongue engageable within said tongue receiving slot securing the stringer on said release head in an elevated position.
3. The assembly of claim 2 further characterized by said I beam shaped member having ledge plates extending from its opposite sides for supporting the slab support members outer margins of said ledge plates having fingers, said fingers being in gap relation relative to said I-beam shaped member, the slab support members each having ends being engaged over said fingers and lodged in gaps defined by the gap relationship and supported on said ledge plates.
4. The concrete hardware assembly of claim 1 further characterized by the stringers being comprised of an I-beam shaped member having diagonal edges at opposite ends, the I-beam shaped members having flat shaped upper and lower longitudinally extending flanges with the upper flange being longer than the lower flange, channel shaped stringer support plates positioned at opposite ends of said stringers each in fitted engagement over one of said diagonal edges in unitary assembly therewith, means securing opposite ends of said stringer support plate in detachable assembly with said stringer support bracket.
5. The assembly of claim 1, further characterized by said I-beam shaped member having ledge plates extending from its opposite sides, outer margins of said ledge plates having upturned fingers, said fingers being in gap relation relative to said I-beam shaped member, the slab support member having ends being engaged over said upturned fingers and lodged in gaps defined by the gap relationship and supported on said ledge plates.
6. The assembly of claim 1, further characterized by said I-beam shaped member having ledge plates extending from its opposite sides, outer margins of said ledge plates having clips attached thereto, said chips having upwardly extending fingers disposed in gap relation relative to said I-beam shaped member, the slab support member having ends being engaged over said upwardly extending fingers and lodged in gaps defined by the gap relationship and supported on said ledge plates.
7. The concrete hardware assembly of claim 1, further characterized by the means adjustably mounting said stringer support bracket and said top plate vertically relative to one another in a series of selectable positions comprising screw threads on said base portion of said head and with said support bracket being in slidable engagement therewith, a series of vertically spaced pin holes in said base portion and a stop pin removably securable within any one of said pin holes, and a screw jack nut mounted in threaded assembly on the screws of the base portion with the screw jack nut serving to secure the stringer support bracket against the stop pin on the base portion of the head in locked assembly.
8. The concrete hardware assembly of claim 1, further characterized by connecting means securing a lower end of said release head in releasable end-to-end assembly with an upper end of said adjustable stringer post shore.
9. The concrete hardware assembly of claim 1, further characterized by said multiple position release head including an extension tube in telescoped assembly with said base portion of the head, the extension tube having vertically spaced sets of holes, a stop pin extendable through any given set of holes for adjustment, ramp plates secured to opposite sides of said base portion in fixed assembly, and a hammer wedge plate slidably mounted on said ramp plates and bearing against said stringer support bracket for urging the stringer support bracket in snug engagement with said stop pin, said hammer wedge plate being releasable upon being struck with a hammer causing the plate hammer release plate to be moved in an opposite direction on said ramp plates to enable said hammer wedge plate to be vertically dropped with said stringer support bracket to enable the stringers and the slab support members forming the deck to be disassembled from the post shore and the head while leaving a poured slab in a supported position on the release stringer shore head units.
-- 10. The concrete hardware assembly of claim 9, further characterized by said base portion of said head and said extension tube being of a square shape and in telescoped assembly together and with said hammer wedge plate coacting with said stop plate and said stringer support bracket to hold these components in assembly together. ---- 11. The assembly of claim 1 further characterized by the release head comprising upper and base head portions telescopingly engaged together, the upper head section having external threads, a sleeve in threaded engagement with the external threads on said upper head section, a set pin engaged through said sleeve into one of a series of vertically spaced threaded holes to provide an up stop position for said stringer support bracket, and a nut securing said stringer support bracket in snug engagement with said sleeve in its up stop position in unitary assembly.---- 12. The assembly of claim 1 further characterized by the release head comprising parallel-sided upper and base head portions telescopingly engaged together, an up stop pin engaged through said sleeve into one of a series of vertically spaced threaded holes and secured to provide an up stop position for said stringer support bracket, cam plates on said base portions and a wedge plate securing said stringer support bracket in snug engagement with said up stop pin in unitary assembly therewith.---- 13. The assembly of claim 12 further character-ized by said wedge plate having a U-shaped inclined cam plate mounted thereon and coactive with said cam plates carried on said base section for causing the stringer support bracket to be engaged against said up stop pin in its up stop position.---- 14. The assembly of claim 1 further characterized by the release head comprising upper and base head portions telescopingly engaged together, the upper head section having external threads, an up stop nut threadingly engaged with said upper head portion, means for locking said nut in various selected adjusted positions along the length of said upper head portion to provide an up stop position, cam surface means on said base head portion, and a wedge plate coactively engaged with said cam surface means for snugly engaging the stringer support bracket against said nut thus holding these components in unitary locked assembly. ---- 15. The assembly of claim 14 further character-ized by a cotter pin extending through said nut and secured to said threaded upper head portion to hold them in secured relation to provide the up stop position of the nut. ---- 16. The assembly of claim l further character-ized by the head comprising a single parallel-sided having vertically spaced sets of stop holes provided on opposing sides of the parallel-sided section, stop pin means cooperable with a selected set of said holes to provide an up stop position, vertically spaced pairs of reactive pins provided on other opposed sides of the parallel-sided section, the sets of pins alternating with the sets of stop pin holes, each of the stop pins being secured in a position at right angles to a horizontal axis through a set of the stop holes with the pins each having opposite ends projecting externally of the parallel-sided section, and a wedge plate retainingly engaged with said parallel sided section in cammed engagement with a selected pair of the reactive pins causing the stringer support bracket to be secured in snug retained engagement against the opposite ends of said stop pins in its up stop position in unitary assembly. ---- 17. The assembly of claim 16 further characterized by a cotter pin securing said stop pin in retained assembly in its up stop position with said parallel-sided section. ---- 18. The assembly of claim 17 further characterized by the wedge plate having a camming surface thereon coactive with the opposite ends of a reactive pin for insuring that the stringer support bracket is snugly engaged against the stop pin. --
-- 10. The concrete hardware assembly of claim 9, further characterized by said base portion of said head and said extension tube being of a square shape and in telescoped assembly together and with said hammer wedge plate coacting with said stop plate and said stringer support bracket to hold these components in assembly together. ---- 11. The assembly of claim 1 further characterized by the release head comprising upper and base head portions telescopingly engaged together, the upper head section having external threads, a sleeve in threaded engagement with the external threads on said upper head section, a set pin engaged through said sleeve into one of a series of vertically spaced threaded holes to provide an up stop position for said stringer support bracket, and a nut securing said stringer support bracket in snug engagement with said sleeve in its up stop position in unitary assembly.---- 12. The assembly of claim 1 further characterized by the release head comprising parallel-sided upper and base head portions telescopingly engaged together, an up stop pin engaged through said sleeve into one of a series of vertically spaced threaded holes and secured to provide an up stop position for said stringer support bracket, cam plates on said base portions and a wedge plate securing said stringer support bracket in snug engagement with said up stop pin in unitary assembly therewith.---- 13. The assembly of claim 12 further character-ized by said wedge plate having a U-shaped inclined cam plate mounted thereon and coactive with said cam plates carried on said base section for causing the stringer support bracket to be engaged against said up stop pin in its up stop position.---- 14. The assembly of claim 1 further characterized by the release head comprising upper and base head portions telescopingly engaged together, the upper head section having external threads, an up stop nut threadingly engaged with said upper head portion, means for locking said nut in various selected adjusted positions along the length of said upper head portion to provide an up stop position, cam surface means on said base head portion, and a wedge plate coactively engaged with said cam surface means for snugly engaging the stringer support bracket against said nut thus holding these components in unitary locked assembly. ---- 15. The assembly of claim 14 further character-ized by a cotter pin extending through said nut and secured to said threaded upper head portion to hold them in secured relation to provide the up stop position of the nut. ---- 16. The assembly of claim l further character-ized by the head comprising a single parallel-sided having vertically spaced sets of stop holes provided on opposing sides of the parallel-sided section, stop pin means cooperable with a selected set of said holes to provide an up stop position, vertically spaced pairs of reactive pins provided on other opposed sides of the parallel-sided section, the sets of pins alternating with the sets of stop pin holes, each of the stop pins being secured in a position at right angles to a horizontal axis through a set of the stop holes with the pins each having opposite ends projecting externally of the parallel-sided section, and a wedge plate retainingly engaged with said parallel sided section in cammed engagement with a selected pair of the reactive pins causing the stringer support bracket to be secured in snug retained engagement against the opposite ends of said stop pins in its up stop position in unitary assembly. ---- 17. The assembly of claim 16 further characterized by a cotter pin securing said stop pin in retained assembly in its up stop position with said parallel-sided section. ---- 18. The assembly of claim 17 further characterized by the wedge plate having a camming surface thereon coactive with the opposite ends of a reactive pin for insuring that the stringer support bracket is snugly engaged against the stop pin. --
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28480481A | 1981-07-22 | 1981-07-22 | |
| US284,804 | 1981-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1166867A true CA1166867A (en) | 1984-05-08 |
Family
ID=23091591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000386295A Expired CA1166867A (en) | 1981-07-22 | 1981-09-21 | Adjustable release stringer shore head with integral load carrying stringer |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1166867A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6513785B1 (en) * | 2000-08-28 | 2003-02-04 | Wall-Ties & Forms, Inc. | Concrete deck forming apparatus and method |
| WO2009023926A1 (en) * | 2007-08-22 | 2009-02-26 | Wasyl Rosati | A means of stripping concrete formwork from a concrete surface |
| CN104533088A (en) * | 2014-12-24 | 2015-04-22 | 湖南省第二工程有限公司 | Early-dismantling head for assembling building formwork |
| EP2836658B1 (en) * | 2012-04-11 | 2016-05-11 | Tecnotelai Components S.r.l. | Supporting head for the construction of a superstructure |
| CN109518988A (en) * | 2018-12-28 | 2019-03-26 | 云南建投第二建设有限公司 | A kind of adjustable support device for assembled architecture |
| CN110107083A (en) * | 2019-05-25 | 2019-08-09 | 漳州市筑创铝模科技有限公司 | A kind of duplex house floor construction method |
| EP3516133A4 (en) * | 2016-09-19 | 2020-05-20 | Lenkin, Michael L. | Adjustable support device and shoring system |
-
1981
- 1981-09-21 CA CA000386295A patent/CA1166867A/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6513785B1 (en) * | 2000-08-28 | 2003-02-04 | Wall-Ties & Forms, Inc. | Concrete deck forming apparatus and method |
| WO2009023926A1 (en) * | 2007-08-22 | 2009-02-26 | Wasyl Rosati | A means of stripping concrete formwork from a concrete surface |
| JP2010537086A (en) * | 2007-08-22 | 2010-12-02 | ヴァシーリ ロザーティ | Means for removing concrete formwork from concrete surface |
| US8651448B2 (en) | 2007-08-22 | 2014-02-18 | Wasyl Rosati | Means of stripping concrete formwork from a concrete surface |
| AU2008288700B2 (en) * | 2007-08-22 | 2014-07-03 | Wasyl Rosati | A means of stripping concrete formwork from a concrete surface |
| EP2836658B1 (en) * | 2012-04-11 | 2016-05-11 | Tecnotelai Components S.r.l. | Supporting head for the construction of a superstructure |
| CN104533088A (en) * | 2014-12-24 | 2015-04-22 | 湖南省第二工程有限公司 | Early-dismantling head for assembling building formwork |
| EP3516133A4 (en) * | 2016-09-19 | 2020-05-20 | Lenkin, Michael L. | Adjustable support device and shoring system |
| CN109518988A (en) * | 2018-12-28 | 2019-03-26 | 云南建投第二建设有限公司 | A kind of adjustable support device for assembled architecture |
| CN109518988B (en) * | 2018-12-28 | 2024-01-23 | 云南建投第二建设有限公司 | Adjustable supporting device for assembled building |
| CN110107083A (en) * | 2019-05-25 | 2019-08-09 | 漳州市筑创铝模科技有限公司 | A kind of duplex house floor construction method |
| CN110107083B (en) * | 2019-05-25 | 2021-04-27 | 福建省筑创铝模科技有限公司 | Construction method for skip-floor type residential floors |
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| Date | Code | Title | Description |
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| MKEX | Expiry |