CA1145179A - Adjustable yoke for suspending concrete wall and slab construction - Google Patents
Adjustable yoke for suspending concrete wall and slab constructionInfo
- Publication number
- CA1145179A CA1145179A CA000371641A CA371641A CA1145179A CA 1145179 A CA1145179 A CA 1145179A CA 000371641 A CA000371641 A CA 000371641A CA 371641 A CA371641 A CA 371641A CA 1145179 A CA1145179 A CA 1145179A
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- Canada
- Prior art keywords
- bar
- bracket
- vertical
- yoke
- concrete
- 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.)
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Abstract
ABSTRACT OF THE DISCLOSURE
An adjustable yoke for suspending metal "C"
shaped concrete forms or the like for forming double formed concrete curb walls, single formed concrete grade walls with concrete slab, and single formed monolithic concrete slabs. The adjustable yoke is used in metal building concrete applications and provides means for properly aligning metal concrete forms and quickly and inexpensively pouring straight and attractive finished concrete walls and concrete slabs.
An adjustable yoke for suspending metal "C"
shaped concrete forms or the like for forming double formed concrete curb walls, single formed concrete grade walls with concrete slab, and single formed monolithic concrete slabs. The adjustable yoke is used in metal building concrete applications and provides means for properly aligning metal concrete forms and quickly and inexpensively pouring straight and attractive finished concrete walls and concrete slabs.
Description
-1~45179 The invent~on xelates to a s~;tem ~or ~ouring concrete walls and concrete sla~s and more particularl~, ~ut not ~y way of limitation, to an ad~usta~le yoke for suspending ~etal concrete forms used ~n concrete w~ll and sla~ con~truction designed for metal ~uilding~.
~eretofore t~ere ~ave ~een various types and designs of concrete forms such as the concrete æorms disclosed in U.S.
patents 1,672,760 and 1,682, aos to ~elt~el a~a an adjustable form disclosed in U.S. patent 3,288,426 to simpsan. Also disclosed in U.S. patent 1,911,146 to Die~l is an adjusta~le xoad form or forming curbs on concrete pavements. None of the priox art patents, nor prior concrete form systems, disclosed the novel structure and advantages o the subject adjustable ~oke for suspending concrete forms as described herein.
Thus accord;ng to the present invention there is provided an adjusta~le yoke for ~uspending concrete orms used in concrete wall and slab construction, the ~oke comprising:
a horizontal suspension bax havîng a pair of vertical sleeves attached to the opposite ends o~the bar;
a pair of vertical rods having po~nted end portions for receipt in the ground surface, the sleeves o~ t~e bar slida~ly received around the rods so that the bar may be raised and lowered on the rods; and a first "L" shaped slide bracket, thc first bracket having a horizontal hollow arm slida~ly received around the bar so that the first bracket may ~e moved laterally on the bar, the first bracket having a vertical suspension arm hav;ng means for suspendiny a concrete form therefrom.
The adjustable yoke for suspending concrete orms used 3~ in concrete wall and slab construction is rugged in construction, q~
1~5:179 durable, and simple in design. The in~ention greatly reduces the cost and waste of previousl~ used ~ooden fo~ms.
The yoke requires only two me~ to set up and may reduce by up to 50 percent of t~e man-~ours prev~ousl~ required in forming concrete ~alls and sla~s used in metal ~uild~ng construction.
The inve~tion allows for ~oth ~ertlcal and lateral adjustment of the concrete forms resulting ~n straight, attractive finished ~alls. The adjusta~le yoke may also provide alignment sights mounted on t~e structure of the yoke for proper alignment ~y a transit, string line, or the like.
; - 2a -~145179 The adjustable yoke suspends standard lengths of "C" shaped metal concrete forms which are inter-locked at all joints and corners so that a complete form system may be quickly assembled and disassembled in pouring double formed curb walls, single formed grade walls and concrete slab, and single formed mono-li~hic slabs.
In the preferred form, the adjustable ~oke for su~ ing ooncrete f~xms used in ooncrete wall andslab construction includes a horizontal suspension bar having a pair of vertical sleeves with threaded handles. The sleeves receive vertical rods having a pointed end portion for receipt in the ground surface. The horizon*al suspension bar is slidably adjusted on the vertical rods. Mounted on the suspension bar are "L" shaped slide brackets. The slide brackets include hooks for suspending the concrete form~ therefrom. The slide brackets also include threaded handles so that the brackets may be secured on ~ the suspension bars when the concrete forms are properly aligned. The brackets are designed so that they can ro-tate on the suspension bar upwardly when the brackets are not required for suspending concrete forms therefrom.
The advantages and ob~ects of the inventlon will become evident from the following detailed description of the drawings when read in connection with the accompany-ing drawings which illustrate preferred embodiments of the invention.
' :
11~5179 Fig. 1 is a perspective view of a plurality of adjustable yokes suspending interlocked metal concrete ~orms and aligned with a transit at one end. In this view a ditch has been excavated adjacent the concrete forms for pouring a single formed grade wall and slab.
Fig. 2 is a front view of the adjustable yoke suspending a concrete form adjacent a poured grade wall and slab.
Fig. 3 illustrates the adjustable yoke suspending a pair of concrete forms facing each other with a double formed curb wall formed therebetween.
Fig. 4 is a front partial view of the adjustable yoke used in suspending a concrete form for pouring a single formed monolithic slab.
Fig. 5 illustrates a perspective view of a corner connection for interlocking the concrete forms.
Fig. 6 is a perspective view illustrating the adjustable yoke and two interlocked concrete forms.
~ Fig. 7 illustrates a top plan view of the adjustable yokes and interlocked concrete ~orms for forming a 60 foot by 100 foot concrete slab,-Fig. 8 ~llustrates a top vlew of the outside and -inside corner connectors for interlocking the concrete forms at right angles to each other.
Fig. 9 is a perspective view of a ~ulkhead attached to parallel concrete forms.
Fig. 10 is a perspective view of a template used to suspend an anchor bolt in correct relative location to the form during pouring and appears on the same sheet as Fig. 3.
- 4 _ 11~5179 Fig. 11 ~hich also appears on the ~am~ sheet as Fig.
10 s~o~s a template for secur~ng ancfi~r ~olts fox a door .
joist.
In ~ig. 1 t~ ad~usta~le yvke for suspending concrete forms is des~gnated ~y general referen~e numeral la. In Fig. 1 t~ree ad~usta~le yokes 10 can ~e seen parallel to , - 4a -~ , .
each other and in a spaced relationship to each other fo:r suspending concrete forms adjacent a recently excavated ditch 11. The adjustable yokes 10 include a horizontal susl~ension bar 12 having a pair of vertical sleeves 14 attached to the opposite ends of the suspension bar 12. (The bar 12 has an annular cross section). The slee~es 1~ include threaded handles 16 threaded into the sides of the sleeves 16.. Slidably received inside the sleeves 16 are vertical rods 1~ having a pointed end portion 20 shown in Fig. 2 which is driven into a ground surface 21. By loosenin~ and tightening the threaded handles 16, the suspension bar 12 can be raised and lowered vertically on the rods lS for adjusting to the proper height desired in pouring the concrete wall and slab adjacent the concrete forms.
The yoke 10 further includes a first "L" shaped slide bracket 24 and a second "L" shaped slide bracket 26. The "L" shaped brackets 24 and 26 include a horizontal tubular arm 27 which is slidably received around the bar 20 12 so that the brackets 24 and 26 can be moved laterally on the bar 12. When the brackets 24 and 26 are properly aligned on the bar 12, the brackets are secured to the bar 12 by threaded handles 2S threaded into the sides of the arm 27. The brackets 24 and 26 further include a `~ vertical suspension arm 30 having a hook 32. The hook ` 32 e.Ytends out-vardly ~rom the arm 30 for suspendin~ a "C" shaped metal form 34. While the "C" shaped metal concrete form 34, having standard dimensions of 10 feet, : -5-;
` 1145179 20 feet, 24 feet, and 25 feet is discussed, it should be appreciated that various other types of metal and non-metal forms having different geometric configurations could be used equally well with the adjustable yoke lO
and suspended therefrom.
The concrete form 34 includes an angular shaped tube 36 having dimensions of 1-l/2 inch by l-l/2 inch for forming a notch in the side and top of the concrete wall. Ilowever, this notch size is variable. This notch is used for a building wall sheeting recess around the perimeter of the concrete wall and slab. Also extending outwardly and through the sides of the "C" shaped concrete form 34 are snap ties 38 which are used for anchoring the form 34 in the concrete grade wall prior to pouring the concrete slab adjacent to and on top of the grade wall.
The first bracket 24 and second bracket 26 further include a vertical sight 40 attached to the top of the horizontal arm 27 for properly aligning the concrete forms 34 by a transit 36 shown at the far end of an ; excavated ditch 11. While a transit 36 is shown, a level, string line, or any other alignment means can be used in conjunction with the sights 40 for aligning the forms 34.
In Fig. 1 the concrete forms 34 have been adjusted to the proper height by ad~usting the suspension bars 12 on the vertical rods lS. The forms 34 are aligned laterally by loosening the handles 2S and adjusting ' .
~`
. - , - ~4S179 the ~rackets 26 usIng the transit 37 and sight$ 4~ It should be noted that ~n Fig. 1 a s~ngle foxmed grade ~all ~nd sla~ are to ~e formed w~t~ the sla~ to be pourea on the le~t hand side of the ditch 11. In ~h~s view the first "L" shaped brackets 24 are not in use and are lo~sened on t~e suspens~on bar 12 ~ the threaded handles 28 and rotated up~ardly out o~ th~ way. In operation, the concrete grade wall ~ then poured up to the top of the ground level 11. When the grade ~all has been poured the "C" shaped forms 34 are held in place ~y the ends of the snap ties 38 secured in t~e top of the grade ~a~l. When th~s has been completed the "L" shaped sliding ~rackets 26 are loosened on the suspension bar 12 and t~e bar 12 moves down on the rods 18 to release the forms 34 ~rom the ~ooks 32 o~ th~ vert~cal suspension arms 30. ~hen this has been completed the ~racket~ 26 may ~e slid side~ays and the suspension ~ar 12 and slîdin~ brackets 24 and 26 are.removed with the vertical rods 18 or the entire assembly. Then the finished concrete slab is poured ~etween the ~ concrete forms 34.
- ~ In Fig. 2 a side view of the yoke 1~ is ~llustrated ~herein a single formed grade ~all 42 ha~ ~een poured in-ditch ~ up to-a level representedi~y-l-ine 44 which is a cold joint ~etween the wall 42 and ths su~sequently poured concrete sla~ 46~ After the wall 42 has been poured and allowed to set, the "C" shaped metal form 34 is held in place ~y the snap ties 38~ At this point the yoke 10 is removed.including..the suspension ~ar 12, -`` ` 1145179 rods 18 and sliding brackets 24 and 26, or the entire assembly. The concrete slab 46 is then poured up to the height o~ the form 34 and angular shaped tube 36.
It should be noted that vertical line A-A which inter-sects the vertical sight 40 and the inside vertical side of the tube 36 is the building girt line. There-fore, the width of the tube 36 which is represented by dimension X will provide, for example, an additional inch and a half of concrete wall around the perimeter of the building for receiving the wall sheeting. When the slab 46 has been poured and set up the "C" shaped metal forms 34 are removed from the ties 38 by removing wedge clips 48 which secure the ends of the ties 38 to the form 34.
In Fig. 3 a side view of the yoke 10 is illustrated showing how a double formed curb wall 50 is poured between a pair of metal forms 34 facing each other. In this operation the first sliding bracket 24 is lowered into a position facing the second sliding brackets 26.
The sliding brackets 24 and 26 are aligned laterally and adjusted vertically on the bar 12. The metal forms 34 are then attached to each other in a spaced relation-ship by the snap ties 38 which are held on the forms 34 by the wedge clips 48. The ditch 11 is then filled ~ with concrete up to the top of the two metal forms 34.
,~ ~ The curb wall 50 is allowed to set up and then the yoke 10 is removed. The metal forms 34 are then removed by releasing the wedge clips 48.
~' ~1~5179 In Fig. 4 additional structure of the yoke lO is shown for forming a single formed monolithic slab 52.
In pouring the monolithic slab 52 the wall and slab are all integrally formed together and the rod 18 shown in dotted lines on the right hand side for holding one end of the suspension bar 12, therefore, cannot be used since it is located where the slab 52 is to be poured.
Therefore, the rod 18 is removed from the sleeve 14 and the first sliding bracket 24 is provided with a vertical sleeve 54 with a threaded handle 56 through the side thereof attached to the side of the horizontal hollow arm 27. The rod 18 is then slidably received in the vertical sleeve 54 with the pointed end portion 20 driven into the ground surface 21. It should be noted that the suspension arm 30 has an added hook 57 on the opposite side of the hook 32 for suspending the form 34 when it is used for pouring this type of concrete slab. The second sliding bracket 26 can also have this additional feature of the vertical sleeve 54 and threaded handle 56 for holding the opposite end of the bar 12 when a monolithic slab 52 is to be poured. Also the bracket ~6 would include the additional hook 57 on its suspension arm 30.
In Fig. 5 a right angle corner connection 58 is illustrated which slidably receives the ends of the metal forms 34 when pouring the corner of a grade wall and concrete slab. The corner connector 58 also includes apertures 60 through the sides thereof so that the snap ~1~5179 ties 38 can be inserted therethrough, In Fig. 6 a partial perspective view of the yoke 10 is illustrated. In this view a pair of forms 34 are interlocked by male slide connectors slidably received in the ends of the forms and interlocked by a duplex nail insert`ed through an aperture 62 in the tube 36. The duplex nail and connectors are not shown in the drawings. A joint line 64 represents a line where the two forms 34 are connected. Also shown in this illustration is arrow 66 which represents the vertical adjustment of the suspension bar 12 on the rod 1~. Also an arrow 68 represents the lateral adjustment of the slide bracket 26 along the bar 12. An arrow 70 represents the direction the slide bracket 26 can be rotated when the hook 32 is released from the form 34 so that the bracket 26 can be pivoted upwardly and away from the form 34 when it is desired to remove the yoke 10 from the form 34.
In Fig. 7 a plan view of a plurality of yokes 12 20 lS shown used for pouring, fo~ example, a 60 foot by 100 foot concrète slab for a metal building. In pouring the concrete wall and slab, sixteen 20 foot long forms on the outside of the wall and Your outside corners would be used. On the inside of the wall eight 20 foot forms, eight 18 ~oot forms and four inside corners 70 , would be used. Also eight outside yokes 10 would be set ; up approximately ten to fifteen feet from the corners o~ the building. The yokes 10 are then aligned with string lines for establishing the proper building ~' ~5~7~
dimension and square. The trench is then excavated.
When the trench is completed the forms 34 are laid end to end around the perimeter of the building. The yokes 10 are then adjusted with the suspension bar 12 set at the proper height for the finished floor elevation. The forms 34 are then interlocked together with the male connectors and suspended from the hooks 32 attached to the sides of the suspension arms 30.
The forms 34 are then double checked for alignment with the transit 37. When the adjustments are completed the snap ties 38 are attached to the forms 34 and the concrete is poured to the bottom of the form 34 for the grade wall 42 or poured to the top of the f~rm for a double formed curb wall 50 or monolithic slab 52.
When this is completed and the concrete has set up the yokes 10 are removed and the concrete slab is poured.
In Fig. 9 a bul~head 72 is illustrated having arms 74 ~or suspending the bulkhead 72 between a pàir of parallel forms 34 when it is desired to leavé a space, for example, in the curb wall 50 for a drive~ay entrance, door window or the like.
In ~ig. 10 a main $rame Bolt template ~s sho~n and designated ~y general reference numeral 76. The template 76 is used to suspend an anchor ~olt 82 in the correct loaction during pouring of the concrete. The template 76 includes a "J" shaped~end portion 78 which i8 looped over the top of the "C'' shaped concrete ~orm 34. An opposite end portion 80 of the template 78 is used for suspendîng an anchor ~olt 82. The lower portion of the .~
il~S179 anchor bolt 82 is covered by the concrete slab with an upper threaded end portion 84 used for anchoring t;he building frame constructed on top of the concrete slab.
In Fig. ll a door jamb bolt template is illustrated and designated by general re~erence numeral 86. The template 86 includes a "J" shaped end portion 88 which is looped over the top of the "C" form 34 with an opposite end 90 of the template 86 holding an "Ll' shaped metal door jamb clip 92. The clip 92 supports a pair of anchor bolts 94. The lower end of the bolts 94 is received in the concrete when the concrete slab is poured. An upper threaded end portion 96 of the bolts 94 is used for sùpporting the door jamb frame.
Changes may be made in the construction and arrange-ment of the parts or elements of the embodiments as described herein without departing from the spirit or scope of the invention defined in the following claims
~eretofore t~ere ~ave ~een various types and designs of concrete forms such as the concrete æorms disclosed in U.S.
patents 1,672,760 and 1,682, aos to ~elt~el a~a an adjustable form disclosed in U.S. patent 3,288,426 to simpsan. Also disclosed in U.S. patent 1,911,146 to Die~l is an adjusta~le xoad form or forming curbs on concrete pavements. None of the priox art patents, nor prior concrete form systems, disclosed the novel structure and advantages o the subject adjustable ~oke for suspending concrete forms as described herein.
Thus accord;ng to the present invention there is provided an adjusta~le yoke for ~uspending concrete orms used in concrete wall and slab construction, the ~oke comprising:
a horizontal suspension bax havîng a pair of vertical sleeves attached to the opposite ends o~the bar;
a pair of vertical rods having po~nted end portions for receipt in the ground surface, the sleeves o~ t~e bar slida~ly received around the rods so that the bar may be raised and lowered on the rods; and a first "L" shaped slide bracket, thc first bracket having a horizontal hollow arm slida~ly received around the bar so that the first bracket may ~e moved laterally on the bar, the first bracket having a vertical suspension arm hav;ng means for suspendiny a concrete form therefrom.
The adjustable yoke for suspending concrete orms used 3~ in concrete wall and slab construction is rugged in construction, q~
1~5:179 durable, and simple in design. The in~ention greatly reduces the cost and waste of previousl~ used ~ooden fo~ms.
The yoke requires only two me~ to set up and may reduce by up to 50 percent of t~e man-~ours prev~ousl~ required in forming concrete ~alls and sla~s used in metal ~uild~ng construction.
The inve~tion allows for ~oth ~ertlcal and lateral adjustment of the concrete forms resulting ~n straight, attractive finished ~alls. The adjusta~le yoke may also provide alignment sights mounted on t~e structure of the yoke for proper alignment ~y a transit, string line, or the like.
; - 2a -~145179 The adjustable yoke suspends standard lengths of "C" shaped metal concrete forms which are inter-locked at all joints and corners so that a complete form system may be quickly assembled and disassembled in pouring double formed curb walls, single formed grade walls and concrete slab, and single formed mono-li~hic slabs.
In the preferred form, the adjustable ~oke for su~ ing ooncrete f~xms used in ooncrete wall andslab construction includes a horizontal suspension bar having a pair of vertical sleeves with threaded handles. The sleeves receive vertical rods having a pointed end portion for receipt in the ground surface. The horizon*al suspension bar is slidably adjusted on the vertical rods. Mounted on the suspension bar are "L" shaped slide brackets. The slide brackets include hooks for suspending the concrete form~ therefrom. The slide brackets also include threaded handles so that the brackets may be secured on ~ the suspension bars when the concrete forms are properly aligned. The brackets are designed so that they can ro-tate on the suspension bar upwardly when the brackets are not required for suspending concrete forms therefrom.
The advantages and ob~ects of the inventlon will become evident from the following detailed description of the drawings when read in connection with the accompany-ing drawings which illustrate preferred embodiments of the invention.
' :
11~5179 Fig. 1 is a perspective view of a plurality of adjustable yokes suspending interlocked metal concrete ~orms and aligned with a transit at one end. In this view a ditch has been excavated adjacent the concrete forms for pouring a single formed grade wall and slab.
Fig. 2 is a front view of the adjustable yoke suspending a concrete form adjacent a poured grade wall and slab.
Fig. 3 illustrates the adjustable yoke suspending a pair of concrete forms facing each other with a double formed curb wall formed therebetween.
Fig. 4 is a front partial view of the adjustable yoke used in suspending a concrete form for pouring a single formed monolithic slab.
Fig. 5 illustrates a perspective view of a corner connection for interlocking the concrete forms.
Fig. 6 is a perspective view illustrating the adjustable yoke and two interlocked concrete forms.
~ Fig. 7 illustrates a top plan view of the adjustable yokes and interlocked concrete ~orms for forming a 60 foot by 100 foot concrete slab,-Fig. 8 ~llustrates a top vlew of the outside and -inside corner connectors for interlocking the concrete forms at right angles to each other.
Fig. 9 is a perspective view of a ~ulkhead attached to parallel concrete forms.
Fig. 10 is a perspective view of a template used to suspend an anchor bolt in correct relative location to the form during pouring and appears on the same sheet as Fig. 3.
- 4 _ 11~5179 Fig. 11 ~hich also appears on the ~am~ sheet as Fig.
10 s~o~s a template for secur~ng ancfi~r ~olts fox a door .
joist.
In ~ig. 1 t~ ad~usta~le yvke for suspending concrete forms is des~gnated ~y general referen~e numeral la. In Fig. 1 t~ree ad~usta~le yokes 10 can ~e seen parallel to , - 4a -~ , .
each other and in a spaced relationship to each other fo:r suspending concrete forms adjacent a recently excavated ditch 11. The adjustable yokes 10 include a horizontal susl~ension bar 12 having a pair of vertical sleeves 14 attached to the opposite ends of the suspension bar 12. (The bar 12 has an annular cross section). The slee~es 1~ include threaded handles 16 threaded into the sides of the sleeves 16.. Slidably received inside the sleeves 16 are vertical rods 1~ having a pointed end portion 20 shown in Fig. 2 which is driven into a ground surface 21. By loosenin~ and tightening the threaded handles 16, the suspension bar 12 can be raised and lowered vertically on the rods lS for adjusting to the proper height desired in pouring the concrete wall and slab adjacent the concrete forms.
The yoke 10 further includes a first "L" shaped slide bracket 24 and a second "L" shaped slide bracket 26. The "L" shaped brackets 24 and 26 include a horizontal tubular arm 27 which is slidably received around the bar 20 12 so that the brackets 24 and 26 can be moved laterally on the bar 12. When the brackets 24 and 26 are properly aligned on the bar 12, the brackets are secured to the bar 12 by threaded handles 2S threaded into the sides of the arm 27. The brackets 24 and 26 further include a `~ vertical suspension arm 30 having a hook 32. The hook ` 32 e.Ytends out-vardly ~rom the arm 30 for suspendin~ a "C" shaped metal form 34. While the "C" shaped metal concrete form 34, having standard dimensions of 10 feet, : -5-;
` 1145179 20 feet, 24 feet, and 25 feet is discussed, it should be appreciated that various other types of metal and non-metal forms having different geometric configurations could be used equally well with the adjustable yoke lO
and suspended therefrom.
The concrete form 34 includes an angular shaped tube 36 having dimensions of 1-l/2 inch by l-l/2 inch for forming a notch in the side and top of the concrete wall. Ilowever, this notch size is variable. This notch is used for a building wall sheeting recess around the perimeter of the concrete wall and slab. Also extending outwardly and through the sides of the "C" shaped concrete form 34 are snap ties 38 which are used for anchoring the form 34 in the concrete grade wall prior to pouring the concrete slab adjacent to and on top of the grade wall.
The first bracket 24 and second bracket 26 further include a vertical sight 40 attached to the top of the horizontal arm 27 for properly aligning the concrete forms 34 by a transit 36 shown at the far end of an ; excavated ditch 11. While a transit 36 is shown, a level, string line, or any other alignment means can be used in conjunction with the sights 40 for aligning the forms 34.
In Fig. 1 the concrete forms 34 have been adjusted to the proper height by ad~usting the suspension bars 12 on the vertical rods lS. The forms 34 are aligned laterally by loosening the handles 2S and adjusting ' .
~`
. - , - ~4S179 the ~rackets 26 usIng the transit 37 and sight$ 4~ It should be noted that ~n Fig. 1 a s~ngle foxmed grade ~all ~nd sla~ are to ~e formed w~t~ the sla~ to be pourea on the le~t hand side of the ditch 11. In ~h~s view the first "L" shaped brackets 24 are not in use and are lo~sened on t~e suspens~on bar 12 ~ the threaded handles 28 and rotated up~ardly out o~ th~ way. In operation, the concrete grade wall ~ then poured up to the top of the ground level 11. When the grade ~all has been poured the "C" shaped forms 34 are held in place ~y the ends of the snap ties 38 secured in t~e top of the grade ~a~l. When th~s has been completed the "L" shaped sliding ~rackets 26 are loosened on the suspension bar 12 and t~e bar 12 moves down on the rods 18 to release the forms 34 ~rom the ~ooks 32 o~ th~ vert~cal suspension arms 30. ~hen this has been completed the ~racket~ 26 may ~e slid side~ays and the suspension ~ar 12 and slîdin~ brackets 24 and 26 are.removed with the vertical rods 18 or the entire assembly. Then the finished concrete slab is poured ~etween the ~ concrete forms 34.
- ~ In Fig. 2 a side view of the yoke 1~ is ~llustrated ~herein a single formed grade ~all 42 ha~ ~een poured in-ditch ~ up to-a level representedi~y-l-ine 44 which is a cold joint ~etween the wall 42 and ths su~sequently poured concrete sla~ 46~ After the wall 42 has been poured and allowed to set, the "C" shaped metal form 34 is held in place ~y the snap ties 38~ At this point the yoke 10 is removed.including..the suspension ~ar 12, -`` ` 1145179 rods 18 and sliding brackets 24 and 26, or the entire assembly. The concrete slab 46 is then poured up to the height o~ the form 34 and angular shaped tube 36.
It should be noted that vertical line A-A which inter-sects the vertical sight 40 and the inside vertical side of the tube 36 is the building girt line. There-fore, the width of the tube 36 which is represented by dimension X will provide, for example, an additional inch and a half of concrete wall around the perimeter of the building for receiving the wall sheeting. When the slab 46 has been poured and set up the "C" shaped metal forms 34 are removed from the ties 38 by removing wedge clips 48 which secure the ends of the ties 38 to the form 34.
In Fig. 3 a side view of the yoke 10 is illustrated showing how a double formed curb wall 50 is poured between a pair of metal forms 34 facing each other. In this operation the first sliding bracket 24 is lowered into a position facing the second sliding brackets 26.
The sliding brackets 24 and 26 are aligned laterally and adjusted vertically on the bar 12. The metal forms 34 are then attached to each other in a spaced relation-ship by the snap ties 38 which are held on the forms 34 by the wedge clips 48. The ditch 11 is then filled ~ with concrete up to the top of the two metal forms 34.
,~ ~ The curb wall 50 is allowed to set up and then the yoke 10 is removed. The metal forms 34 are then removed by releasing the wedge clips 48.
~' ~1~5179 In Fig. 4 additional structure of the yoke lO is shown for forming a single formed monolithic slab 52.
In pouring the monolithic slab 52 the wall and slab are all integrally formed together and the rod 18 shown in dotted lines on the right hand side for holding one end of the suspension bar 12, therefore, cannot be used since it is located where the slab 52 is to be poured.
Therefore, the rod 18 is removed from the sleeve 14 and the first sliding bracket 24 is provided with a vertical sleeve 54 with a threaded handle 56 through the side thereof attached to the side of the horizontal hollow arm 27. The rod 18 is then slidably received in the vertical sleeve 54 with the pointed end portion 20 driven into the ground surface 21. It should be noted that the suspension arm 30 has an added hook 57 on the opposite side of the hook 32 for suspending the form 34 when it is used for pouring this type of concrete slab. The second sliding bracket 26 can also have this additional feature of the vertical sleeve 54 and threaded handle 56 for holding the opposite end of the bar 12 when a monolithic slab 52 is to be poured. Also the bracket ~6 would include the additional hook 57 on its suspension arm 30.
In Fig. 5 a right angle corner connection 58 is illustrated which slidably receives the ends of the metal forms 34 when pouring the corner of a grade wall and concrete slab. The corner connector 58 also includes apertures 60 through the sides thereof so that the snap ~1~5179 ties 38 can be inserted therethrough, In Fig. 6 a partial perspective view of the yoke 10 is illustrated. In this view a pair of forms 34 are interlocked by male slide connectors slidably received in the ends of the forms and interlocked by a duplex nail insert`ed through an aperture 62 in the tube 36. The duplex nail and connectors are not shown in the drawings. A joint line 64 represents a line where the two forms 34 are connected. Also shown in this illustration is arrow 66 which represents the vertical adjustment of the suspension bar 12 on the rod 1~. Also an arrow 68 represents the lateral adjustment of the slide bracket 26 along the bar 12. An arrow 70 represents the direction the slide bracket 26 can be rotated when the hook 32 is released from the form 34 so that the bracket 26 can be pivoted upwardly and away from the form 34 when it is desired to remove the yoke 10 from the form 34.
In Fig. 7 a plan view of a plurality of yokes 12 20 lS shown used for pouring, fo~ example, a 60 foot by 100 foot concrète slab for a metal building. In pouring the concrete wall and slab, sixteen 20 foot long forms on the outside of the wall and Your outside corners would be used. On the inside of the wall eight 20 foot forms, eight 18 ~oot forms and four inside corners 70 , would be used. Also eight outside yokes 10 would be set ; up approximately ten to fifteen feet from the corners o~ the building. The yokes 10 are then aligned with string lines for establishing the proper building ~' ~5~7~
dimension and square. The trench is then excavated.
When the trench is completed the forms 34 are laid end to end around the perimeter of the building. The yokes 10 are then adjusted with the suspension bar 12 set at the proper height for the finished floor elevation. The forms 34 are then interlocked together with the male connectors and suspended from the hooks 32 attached to the sides of the suspension arms 30.
The forms 34 are then double checked for alignment with the transit 37. When the adjustments are completed the snap ties 38 are attached to the forms 34 and the concrete is poured to the bottom of the form 34 for the grade wall 42 or poured to the top of the f~rm for a double formed curb wall 50 or monolithic slab 52.
When this is completed and the concrete has set up the yokes 10 are removed and the concrete slab is poured.
In Fig. 9 a bul~head 72 is illustrated having arms 74 ~or suspending the bulkhead 72 between a pàir of parallel forms 34 when it is desired to leavé a space, for example, in the curb wall 50 for a drive~ay entrance, door window or the like.
In ~ig. 10 a main $rame Bolt template ~s sho~n and designated ~y general reference numeral 76. The template 76 is used to suspend an anchor ~olt 82 in the correct loaction during pouring of the concrete. The template 76 includes a "J" shaped~end portion 78 which i8 looped over the top of the "C'' shaped concrete ~orm 34. An opposite end portion 80 of the template 78 is used for suspendîng an anchor ~olt 82. The lower portion of the .~
il~S179 anchor bolt 82 is covered by the concrete slab with an upper threaded end portion 84 used for anchoring t;he building frame constructed on top of the concrete slab.
In Fig. ll a door jamb bolt template is illustrated and designated by general re~erence numeral 86. The template 86 includes a "J" shaped end portion 88 which is looped over the top of the "C" form 34 with an opposite end 90 of the template 86 holding an "Ll' shaped metal door jamb clip 92. The clip 92 supports a pair of anchor bolts 94. The lower end of the bolts 94 is received in the concrete when the concrete slab is poured. An upper threaded end portion 96 of the bolts 94 is used for sùpporting the door jamb frame.
Changes may be made in the construction and arrange-ment of the parts or elements of the embodiments as described herein without departing from the spirit or scope of the invention defined in the following claims
Claims (19)
1. An adjustable yoke for suspending concrete forms used in concrete wall and slab construction, the yoke comprising:
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods; and a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so that the first bracket may be moved laterally on the bar, the first bracket having a vertical suspension arm having means for suspending a concrete form therefrom.
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods; and a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so that the first bracket may be moved laterally on the bar, the first bracket having a vertical suspension arm having means for suspending a concrete form therefrom.
2. The yoke as described in Claim 1 further including a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so that the second bracket may be moved laterally on the bar, the second bracket having a vertical suspension arm having means for suspending a concrete form facing the concrete form suspended by the first bracket and in a spaced relationship thereto for receiving concrete therebetween.
3. The yoke as described in Claim 2 wherein the horizontal hollow arms of the first and second brackets include a threaded handle received through the side of the hollow arms for securing the brackets to the bar.
4. The yoke as described in Claim 2 wherein the horizontal hollow arms of the first and second brackets include a vertical sight mounted on top thereof for use in proper alignment of the concrete forms suspended therefrom by transit, string line, or the like.
5. The yoke as described in Claim 2 wherein the means for suspending the concrete forms is a hook attached to the side of the vertical suspension arms of the first and second brackets.
6. The yoke as described in Claim 2 wherein the suspension bar is annular in cross section and the horizontal hollow arms of the first and second brackets are tubular in cross section so that the brackets may be rotated on the bar upwardly away from the concrete forms when the brackets are not in use.
7. The yoke as described in Claim 1 wherein the sleeves of the suspension bar include threaded handles through the side of the sleeves for securing the sleeves to the rods.
8. An adjustable yoke for suspending concrete forms used in concrete wall and form construction, the yoke comprising:
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar, the sleeves including threaded handles received through the sides thereof;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods, the threaded handles of the sleeves, when tightened, secure the sleeves to the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so that the first bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the first bracket to the bar, the bracket having a vertical suspension arm with a hook attached to the side thereof, for suspending a concrete form there-from; and a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so that the second bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the second bracket to the bar, the bracket having a vertical suspension arm with a hook attached to the side thereof, for suspending a concrete form therefrom.
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar, the sleeves including threaded handles received through the sides thereof;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods, the threaded handles of the sleeves, when tightened, secure the sleeves to the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so that the first bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the first bracket to the bar, the bracket having a vertical suspension arm with a hook attached to the side thereof, for suspending a concrete form there-from; and a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so that the second bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the second bracket to the bar, the bracket having a vertical suspension arm with a hook attached to the side thereof, for suspending a concrete form therefrom.
9. The yoke as described in Claim 8 wherein the vertical suspension arms of the first bracket and second bracket include a pair of hooks attached to the opposite sides of the vertical suspension arms.
10. The yoke as described in Claim 8 wherein the horizontal hollow arms of the first bracket and second bracket include a vertical sleeve attached to the side thereof, the vertical sleeve slidably receiving one of the vertical rods, the vertical sleeve having a threaded handle through the side thereof for securing the sleeve to the rod.
11. An adjustable yoke for suspending concrete forms used in concrete wall and slab construction, the yoke comprising:
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so the first bracket may be moved laterally on the bar, the first bracket having a vertical suspension arm having an upper portion and a lower portion, and pivot means for releasably engaging and suspending one of the concrete forms therefrom, the pivot means attached to the side of the upper portion of the suspension arm and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm.
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so the first bracket may be moved laterally on the bar, the first bracket having a vertical suspension arm having an upper portion and a lower portion, and pivot means for releasably engaging and suspending one of the concrete forms therefrom, the pivot means attached to the side of the upper portion of the suspension arm and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm.
12. The yoke as described in claim 11, further including a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so the second bracket may be moved laterally on the bar, the second bracket having a vertical suspension arm having an upper portion and a lower portion and pivot means for releasably engaging and suspending one of the concrete forms therefrom, the pivot means attached to the side of the upper portion of the suspension arm and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm.
13. An adjustable yoke for suspending concrete forms used in concrete wall and slab construction, the yoke comprising:
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar, the sleeves including threaded handles received through the sides thereof;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods, the threaded handles of the sleeves, when tightened, secure the sleeves to the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so the bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the first bracket to the bar, the bracket having a vertical suspension arm having an upper portion and a lower portion with a first hook attached to the side of the upper portion, the hook releasably engaging and suspending one of the concrete forms therefrom and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm; and a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so the second bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the second bracket to the bar, the bracket having a vertical suspension arm having an upper portion and a lower portion with a second hook attached to the side of the upper portion, the hook releasably engaging and suspending one of the concrete forms therefrom and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm.
a horizontal suspension bar having a pair of vertical sleeves attached to the opposite ends of the bar, the sleeves including threaded handles received through the sides thereof;
a pair of vertical rods having pointed end portions for receipt in the ground surface, the sleeves of the bar slidably received around the rods so that the bar may be raised and lowered on the rods, the threaded handles of the sleeves, when tightened, secure the sleeves to the rods;
a first "L" shaped slide bracket, the first bracket having a horizontal hollow arm slidably received around the bar so the bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the first bracket to the bar, the bracket having a vertical suspension arm having an upper portion and a lower portion with a first hook attached to the side of the upper portion, the hook releasably engaging and suspending one of the concrete forms therefrom and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm; and a second "L" shaped slide bracket, the second bracket having a horizontal hollow arm slidably received around the bar so the second bracket may be moved laterally on the bar, the hollow arm including a threaded handle received through the side thereof for securing the second bracket to the bar, the bracket having a vertical suspension arm having an upper portion and a lower portion with a second hook attached to the side of the upper portion, the hook releasably engaging and suspending one of the concrete forms therefrom and allowing the form to be pivoted thereon and pivot and slide against the side of the lower portion of the vertical suspension arm thereby providing means for the form to rotate in a plane about the vertical axis of the suspension arm and in a plane about the horizontal axis of the hollow arm.
14. The yoke as described in claim 13, wherein the horizontal hollow arms of the first and second brackets include a threaded handle received through the side of the hollow arms for securing the brackets to the bar.
15. The yoke as described in claim 13, wherein the horizontal hollow arms of the first and second brackets include a vertical sight mounted on top thereof for use in proper alignment of the concrete forms suspended therefrom by transit, string line, or the like.
16. The yoke as described in claim 13, wherein the pivot means for suspending the concrete forms is a hook, the end of the hook extending upwardly for releasably engaging the forms.
17. The yoke as described in claim 13, wherein the suspension bar is annular in cross section and the horizontal hollow arms of the first and second brackets are tubular in cross section so that the brackets may be rotated on the bar upwardly away from the concrete forms when the brackets are not in use.
18. The yoke as described in claim 13, wherein the sleeves of the suspension bar include threaded handles through the side of the sleeves for securing the sleeves to the rods.
19. The yoke as described in claim 13, wherein the horizontal hollow arms of the first bracket and second bracket include a vertical sleeve attached to the side thereof, the vertical sleeve adapted for slidably receiving one of the vertical rods, the vertical sleeve having a threaded handle through the side thereof for securing the sleeve to the rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000371641A CA1145179A (en) | 1981-02-24 | 1981-02-24 | Adjustable yoke for suspending concrete wall and slab construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000371641A CA1145179A (en) | 1981-02-24 | 1981-02-24 | Adjustable yoke for suspending concrete wall and slab construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1145179A true CA1145179A (en) | 1983-04-26 |
Family
ID=4119283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000371641A Expired CA1145179A (en) | 1981-02-24 | 1981-02-24 | Adjustable yoke for suspending concrete wall and slab construction |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1145179A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048781A (en) * | 1990-04-26 | 1991-09-17 | Edward Breen | Concrete mold assembly device |
| US5058854A (en) * | 1990-02-16 | 1991-10-22 | Bravo Sergio M | Containment box installation tool |
| WO1996006985A1 (en) * | 1994-08-29 | 1996-03-07 | Michael Butler | Foundation and floor construction means |
-
1981
- 1981-02-24 CA CA000371641A patent/CA1145179A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5058854A (en) * | 1990-02-16 | 1991-10-22 | Bravo Sergio M | Containment box installation tool |
| US5048781A (en) * | 1990-04-26 | 1991-09-17 | Edward Breen | Concrete mold assembly device |
| WO1996006985A1 (en) * | 1994-08-29 | 1996-03-07 | Michael Butler | Foundation and floor construction means |
| US5564235A (en) * | 1994-08-29 | 1996-10-15 | Butler; Michael | Foundation and floor construction means |
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