Rolled fabric dispensing apparatus

Information

  • Patent Grant
  • 6308489
  • Patent Number
    6,308,489
  • Date Filed
    Wednesday, February 23, 2000
    24 years ago
  • Date Issued
    Tuesday, October 30, 2001
    23 years ago
Abstract
Apparatus for installing rolled fabric as a vapor retarder in an insulated building structure which includes a frame member and a purlin contact which firmly biases the roll of fabric against the structural members on which the fabric is being laid but which is of a construction so as to avoid abutment with building cross members that would normally interfere with the dispensing operation.
Description




FIELD OF THE INVENTION




This invention relates to apparatus for dispensing a rolled fabric. More particularly, this invention relates to apparatus for dispensing a rolled fabric across the width of at least two longitudinal structural supports.




BACKGROUND OF THE INVENTION




Metal roof structures are typically comprised of a series of rafters which extend parallel to each other from each side of a building to its roof peak. Longitudinal structural supports (eg. purlins or bar joists) are typically mounted on top of and perpendicular to these rafters in a similarly parallel fashion. In like fashion, the walls of a building may be comprised of a series of vertical studs or columns on which purlins/girts are mounted in a horizontal fashion (perpendicular to the studs or columns). It is noted that purlins, when installed on such a wall structure, are usually referred to as girts. Therefore, for the purposes of this application, the terms purlins and girts may be used interchangeably.




In one manner of constructing such a known metal roof structure (or wall structure) as described, a fabric (eg. polyethylene) is first rolled in sheets over these purlins/girts. These sheets then serve as a vapor barrier for the metal roof structure (or wall structure).




Once the insulation is installed over the sheet of fabric, the insulation is secured in place with hard (typically metal) roof (or wall) sheeting attached to the upper surface or flange of the purlins.




Heretofore, it has been known in the art to install fabric across the top of purlins by hand or by various carriage devices such as illustrated in U.S. Pat. No. 5,495,698. Installation by hand is often quite time consuming and labor intensive and gives rise to certain safety problems particularly during unusual weather conditions such as high winds. Federal and state OSHA regulations have been passed to enhance safety in this regard through the mandated use of fall protection devices. Installation can also be expensive when it requires extensive pre-preparation (i.e. machine setup) because of the large size of certain known devices used to install the rolled fabric. Further, these known devices are often difficult to install, are designed to operate only in one direction along the length of a purlin, or must be detached and reattached through a cumbersome process when the tensioning device (which biases the roofing fabric roll against the purlin) reaches a purlin cross support.




In view of the above, it is apparent that there exists a need in the art for a rolled fabric dispensing apparatus which overcomes the above drawbacks. It is a purpose of this invention to fulfill this need in the art, as well as other needs which will become apparent to the skilled artisan once given the following disclosure.




SUMMARY OF THE INVENTION




Generally speaking, this invention fulfills the above needs in the art by providing in a rolled fabric dispensing device for applying a sheet of fabric from a roll of fabric across a building structure comprised of at least one pair of two spaced, longitudinally extending substantially parallel structural members at least one of said members being comprised of a first edge and a second edge separated by a web portion, the second edge of at least one of the members having connected thereto a longitudinal flange member extending laterally from the second edge, the flange comprising a first surface and a second surface to which the sheet is applied, the building structure further including at least one laterally extending cross member connected at one end to the web portion of one of the two longitudinal structural members and at the other end to the web portion of the other of the two longitudinal structural members and so located with respect to the first surface of the flange member so as to define a glide space between the cross member and the flange member;




the rolled fabric dispensing device comprising a frame member for contacting the second surface of the flange member, a rolled fabric retention member attached to the frame member for rotatably retaining the fabric roll in contact with the second surface of the flange member and a glide member attached to the frame member and engageable with the first surface of the flange member, the improvement comprising:




wherein the glide member is so constructed as to be of a size and profile which allows the glide member to be unobstructed by said cross member while said glide member is in contact with the first surface of the flange member and is moved through the glide space and the sheet of fabric is dispensed by the device and applied to the second surface of the flange member.




In one embodiment of this invention the glide member includes a glide plate which is connected to the frame member by a mechanism which biases the glide plate against the first surface of the flange member whose second surface is receiving the sheet of fabric during the dispensing operation.




In yet another embodiment of this invention, the biasing mechanism is locatable within the device so as to allow the glide plate to be biased against the first surface of the flange member regardless of which direction, right or left with respect to the dispensing direction, the flange extends from the web portion of the structural member. In this respect the biasing mechanism is so designed that its relevant parts are easily removable and reassembled on the job site to enable the installer to quickly adjust in order to accommodate a right or left extending flange member.




The invention will now be described with respect to certain embodiments thereof as set forth in the accompanying illustrations, wherein:











IN THE DRAWINGS





FIG. 1

is a side plan view illustrating a known rolled fabric dispenser in the prior art.





FIG. 2

is a three-dimensional view of the prior art dispenser illustrated in FIG.


1


.





FIG. 3

is a partial, three-dimensional view of a rolled fabric dispenser according to one embodiment of this invention in its dispensing mode on the roof of a typical metal building structure.





FIG. 4

is a three-dimensional view of the rolled fabric dispensing device illustrated in FIG.


3


.





FIG. 5

is a side plan view of the rolled fabric dispensing device illustrated in

FIG. 4

in combination with rolled fabric to be dispensed on the purlins of a building structure.





FIG. 6

is a partial side section view of the tube and rod assembly of FIG.


5


.





FIG. 7

is a side plan view of the device of

FIG. 4

dispensing fabric across a vertical wall structure.





FIG. 8

is a partial side plan view of an optional extension device constituting a part of an embodiment of this invention.





FIG. 9

is a partial perspective view of an alternative low profile glide mechanism according to this invention.





FIG. 10

is a partial perspective view of an alternative guide member according to this invention.











DETAILED DESCRIPTION OF CERTAIN EMBODIMENTS




This invention constitutes an improvement upon the dispenser shown in

FIG. 1

, a device more fully described in commonly owned U.S. patent application Ser. No. 09/392,716 filed Sep. 9, 1999 and entitled ROOF FABRIC DISPENSING SYSTEM, now U.S. Pat. No. 6,247,288.





FIGS. 1 and 2

(prior art) illustrate a known and rather successfully used, commercial dispenser


100


for applying a roll of fabric


90


, such as high-density, woven- polyethylene, over purlins in a roof system. Generally speaking, commercial dispenser


100


includes a frame member


104


, a guide


106


for embracing the top flange of a purlin (or girt)


6


with a minimum amount of friction, a fabric roll retaining means


108


for retaining a roll of fabric


90


against the surface of the flanges of purlins


6


. Provided as a means for biasing the roll against the purlin flanges onto which the sheet


91


of fabric is applied (with or without adhesive or adhesive tape first being applied) is a tensioning device


110


. Through its biasing spring, adjustable by wing nut


114


, the entire device


100


is secured to the upper surface of the purlin flange via a glide roller


102


, upwardly biased by the coil spring against the undersurface of the flange. For convenience, only purlin


6


and cross support member


70


are shown in FIG.


1


.




As better illustrated in

FIG. 3

, the typical roof structure


2


experienced in practice, normally includes a plurality of parallel purlins


6


, as well as cross support members


70


. Purlins


6


are conventionally “z” shaped in cross section (see

FIG. 4

) and include a vertical web portion


10


, which connects a top flange


8


to a lower flange


12


each of which extends perpendicularly from web portion


10


. As shown in phantom section (dotted lines) in

FIG. 4

, purlins


6


may be installed in the roof structure so as to have their top flanges


8


(for example) oriented in the same or opposite directions.




When prior art dispenser


100


is employed, and the dispenser is mounted in place on a purlin


6


to dispense fabric


90


, such as is illustrated in

FIG. 1

, tensioning device


110


biases glide wheel


102


against the under surface of top horizontal flange


8


. In turn, this biasing force serves to hold guide


106


and a roll of fabric


90


(via engagement means


108


) firmly against the upper surface of top horizontal flange


8


. In order to dispense the roll of fabric into a sheet


91


extending across the purlins by residing on top of the flanges


8


, push pole


112


, shown inserted in frame


104


, may be used to propel the dispenser


100


along the length of purlin


6


, thereby unrolling fabric


90


onto the upper surface of the roof structure


2


(top flange


8


).




Referring again to

FIG. 3

there is illustrated a typical metal roof structure, generally indicated at


2


. This figure helps demonstrate the problems with dispenser


100


when faced with such a popular roof structure and further serves to highlight the improvements of the invention herein. Generally speaking, roof structure


2


, as illustrated, includes rafters


4


which are fixed in a parallel arrangement and extend from one side of the roofing structure


2


to the roof peak as indicated at


5


. In practice, rafters


4


may be spaced as shown or, at other times, more widely spaced. Typically such spacing is approximately 25 feet centerline to centerline with respect to these rafters


4


. Purlins


6


(or in other embodiments, bar joists) are fixedly attached via their lower horizontal flange


12


, to, and on top of, rafters


4


in a perpendicular configuration. They are normally spaced at a distance of five feet (centerline to centerline) in a substantially parallel fashion. At times, of course, other spacing is employed. In addition, the top horizontal flanges


8


of the purlins


6


do not always extend in the same direction. In some cases, for example, purlins


6


may be installed with the top horizontal flanges


8


extending both towards and away from the roof peak


5


(e.g. both right and left in relation to the forward direction the dispenser takes when dispensing the fabric). Cross support members (i.e. bracing members)


70


are provided and are attached to adjacent vertical web portions


10


of purlins


6


(spanning the distance between two parallel purlins) to provide additional strength to the roofing structure


2


.




The use of cross support members


70


presents the problem referred to above, which is associated with dispenser


100


and which is overcome by dispenser


200


of this invention. As shown best in

FIG. 1

, wheel


102


of prior art dispenser


100


comes into interfering, obstructing, contact with cross support member


70


during the dispensing process. This necessitates the disengagement of dispenser


100


each time a cross support member


70


is reached. The magnitude of this problem is heightened by the generally time consuming and cumbersome fashion of the disengagement process. As can be seen, each time the dispenser


100


is to be mounted or removed to or from a purlin, wing nut


114


must be adjusted (i.e. threaded upwardly) a sufficient distance to allow the large glide wheel


102


to be removed from under flange


8


, including its lip


8




a


, and then readjusted after clearing the cross member, to the proper tension, each time a cross member obstructs the path of the dispenser. Moreover, as another problem, each time a purlin flange extends in a different direction, the device must be started in a different direction or another device having the glide member on the other side of frame member


104


put into service.




Both of these problems are solved by the subject invention through the use of unique mechanisms which will be described in greater detail in the paragraphs that follow. Generally speaking however, and with particular reference to

FIGS. 3-6

, a unique mechanism is provided, which renders dispenser


200


capable of dispensing along the full length of a purlin


6


without the need for removal upon encountering a cross support member


70


. As can be seen dispenser


200


includes a low profile glide plate


30


attached to a biasing mechanism generally shown at


40


, which affords the significant advantage of (1) being of a sufficient size and construction so as to easily clear the distance “X” (see

FIG. 5

) between the lower surface


9


of flange


8


and the upper surface


11


of cross member


70


, and (2) having the unique ability to permit the dispenser


200


to be quickly attached and detached from the purlins


6


without need for any readjustment as described more fully below.

FIG. 9

illustrates an alternative low profile glide mechanism


30


′ wherein wheels


701


and frame member


703


are likewise of a small enough dimension to easily clear distance “x”.




As stated above, a second problem associated with prior art dispenser


100


is its inability to easily adapt to a change in the orientation (direction) of top horizontal flanges


8


. As aforesaid, during construction of a metal roof structure


2


(or wall structure), purlins


6


are not always installed across the rafters


4


in a uniform orientation. Therefore, the top horizontal flanges


8


of the various purlins


6


may be oriented in both a right and left extending manner with respect to the direction of dispensing. In the illustrated prior art dispenser as shown in

FIG. 2

, wheel


102


and tensioning device


110


are attached to frame


104


at a right offset by bolts such that the illustrated dispenser


100


may only dispense along a purlin


6


which contains a similarly extending top flange


8


(from vertical web portion


10


) unless, for each different flange extension direction, wheel


102


and tensioning device


110


are unbolted, rebolted and the tension properly readjusted on the other side of frame


104


. The alternative requires having available for use on the job site a second dispenser


100


for use on purlins having an opposite extending top horizontal flange


8


. Even here time is lost in remounting a new device and properly adjusting its tension. In addition, even if all purlins


6


are installed with the top flanges


8


oriented in a single direction, the installer is inhibited in his choice of which end of the roof (or wall) to begin dispensing from, unless the installer has at his disposal two dispensers


100


, each designed for a different top flange


8


orientation (or is willing to unbolt, rebolt, and readjust tensioning device


110


).




The subject invention solves this second problem by way of a unique structure (

FIGS. 3-5

) which employs two hollow tubular arms


80


and


82


, into which biasing mechanism


40


may be quickly and easily (in the alternative) inserted thereby enabling the same dispenser


200


to dispense along a purlin


6


regardless of the orientation of its top horizontal flange


8


, the ease with which this may be done as described more fully below.




Referencing now an embodiment of the improved rolled fabric dispensers of this invention, namely dispenser


200


, as shown in

FIGS. 3-5

, rolled fabric dispenser


200


includes a frame member


14


, a guide member


16


having a general box like profile to guide it when sliding along on purlins


6


principally on front roller


24


. Dispenser


200


further includes (retention) member


60


for retaining a roll of fabric


90


securely in place against the surface of purlins


6


. Member


60


is basically circular in shape, so as to allow fabric roll


90


to freely rotate therein so as to evenly dispense roll


90


into sheet form


91


. Further included is a biasing mechanism


40


which works to normally bias a glide plate


30


against the under-surface


9


of purlin top horizontal flange


8


and, via frame member


14


connected to retention member


60


, to normally bias roll


90


(and thus the initial portion of sheet


91


) against upper surface


13


of flange


8


. Additionally, and optionally provided, is extension push pole


28


, which is inserted into an end of frame member


14


, and may be generally used as a means for facilitating pushing dispenser


200


along the length of purlins


6


. In an alternative embodiment shown in

FIG. 8

, push pole


28


is supplemented by an angular insert


14




a


, inserted between member


14


and push pole


28


. The pushing motion is facilitated, and dispensing is made more uniform by making insert


14




a


of an angle such that pole


28


extends substantially parallel to purlins


6


. A height equal to about the waist of the installer for push pole


28


is optimal.




Dispenser


200


further includes a unique, low profile glide mechanism


30


rotatably attached at pivot orifice


31


to one end of biasing mechanism


40


via shaft


33


. Two alternative embodiments are shown.

FIG. 4

illustrates slide plate glide mechanism


30


while

FIG. 9

illustrates a roller type glide mechanism


30


′.




With reference first to the embodiment of

FIG. 4

, glide plate


30


is attached to biasing mechanism


40


via bent shaft


33


, which extends outwardly beyond the confines of flange


8


. While shaft


33


need not be rotatable in orifice


31


, it is preferred that it be so attached in order that the upper surface of guide plate


30


remain flush for easy sliding along surface


9


of flange


8


, regardless of changes in the angle of shaft


33


with respect to surface


9


that may be encountered during fabric dispensing. Shaft


33


may be part of a single continuous rod


44


or journaled thereto by conventional threaded attaching means (not shown). In either instance, glide plate


30


is capable of fully engaging the under-surface


9


of purlin top horizontal flange


8


(or a bar joist in an alternative embodiment). In view of the nature of biasing spring


42


described below, plate


30


holds firmly against purlins


6


, which allows roll


90


to rotate, so as to evenly dispense sheet


91


. This is particularly important in high winds when fabric


90


has a tendency to act as a sail and force roll


90


or rolled fabric dispenser


200


out of dispensing position.




For ease of sliding, the upper surface of plate


30


may be provided with a low friction surface


35


, such as Teflon® or nylon. As can be seen, particularly with respect to

FIG. 5

, the entire side plan profile dimension “y” of plate


30


(including low friction surface


35


and shaft orifice


31


) is significantly less than distance “x” thus insuring that a cross member


70


will never obstruct the dispensing operation as experienced in the aforesaid prior art operation.




In an alternative embodiment, glide mechanism


30


may be of any low profile design and of any material which is low-friction so as to enable it to easily slide (or roll) along the under-surface


9


of top horizontal flange


8


. For example, a wheel may be used as the glide member


30


as long as its diameter is less than distance “x” (herein defined as the “glide space”). Another embodiment, in this respect, is illustrated in

FIG. 9

wherein items


31


,


33


, etc. remain as described above, with shaft


33


′ preferably being rotatable in orifice


31


′ formed in longitudinal base member


703


. At either end of base member


703


there are drilled holes


705


,


706


, respectively, which retain pin axles


707


,


708


having at their ends wheels


701


. In this embodiment, of course, shaft


33


′ is again offset so as to extend beyond a purlin's upper flange. Moreover, the length of the axle/wheels is such as to fit within the underside, and roll or slide along that underside surface of the top flange of the purlin to which it is attached. The mechanism


30


′, of course, maintains its low profile with wheels


701


being the determining factor. In one embodiment, for example, member


703


may have a length of about five inches with wheels having a diameter of about one inch and a wheel to wheel (outside dimension) width of about 2-½-3 inches. Wheels


701


may be made of a rollable or slidable material such as Teflon® or nylon.




Dispenser


200


is further provided, as above stated, with a unique biasing mechanism


40


for effectively overcoming the aforesaid drawbacks of prior art device


100


. Mechanism


40


includes push plate


52


, attached to threaded rod


44


and used to compress coil spring


42


thereby when depressed, releasing the biasing force of glide mechanism


30


against purlin


6


. More specifically, biasing mechanism


40


comprises coil spring


42


, with threaded rod


44


inserted therethrough. Extending from either side (or preferably both sides) of frame member


14


are hollow tubes


80


,


82


(round or square) through which rod


44


extends. Which tube


80


or


82


is employed depends, of course, on which side of web


10


flange


8


extends. The top of tube


80


or


82


provides a lower support, preferably via washer


46


, for coil spring


42


. An upper stop against expansion of coil spring


42


is provided by wing nut


50


, preferably with washer


48


located beneath it, through which rod


44


is threaded. By threadily rotating nut


50


on rod


44


, coil spring's is biasing force can be adjusted through more or less compression of the spring.




In order to enable rod


44


to be moved through tube


80


or


82


more easily, teflon blocks


54


(shown in

FIG. 6

) may be optionally employed. Blocks


54


are shaped to conform to the space within tubular arms


80


and


82


and are fixedly attached to rod


44


. Blocks


54


, when tubes


80


and


82


are square in cross-section, serve to prevent rod


44


from rotating within arms


80


and


82


. Blocks


54


may, of course, be of any material or shape sufficient to prevent rod


44


rotation as within arms


80


or


82


. Teflon® or other material (e.g. nylon) is preferred, as is a square or rectangular cross section as shown.




Located at the uppermost end of rod


44


is push (palm) plate


52


which is removably attached to rod


44


via a threaded opening for receipt of the complimentarily threaded upper end of rod


44


. As can be seen, by merely manually depressing palm plate


52


, spring


42


is compressed and via shaft


33


, glide plate


31


is separated from purlin


6


. By providing a rod


44


of appropriate length as well as an appropriately designed coil spring


42


and an appropriate length of vertical section of shaft


33


, the entire dispenser


200


may be easily removed from or assembled onto purlin


6


without need for disassembly. By again manually depressing palm plate


52


, the dispenser


200


may then be easily installed or reinstalled for use on a purlin


6


. Wing nut


50


is then employed (adjusted) to create the applicable biasing force in spring


42


necessary to ensure contact of glide mechanism


30


with purlin


6


during operation and to provide the desired degree of tension in fabric sheet


91


across the purlins.




Referring now, in particular, to

FIG. 5

, a significant advantage of this invention is the capability of a single dispenser


200


to install fabric


90


, in sheet form, across an entire structure, regardless of whether it is confronted on a job site with either a right or left extending purlin top flange


8


(or both right and left extending flanges on the same job). This feature is accomplished by providing dual offset tubular arm structures


80


and


82


through which biasing mechanism


40


may be alternately assembled to accommodate different flange orientations. In this way, a single dispenser


200


is able to install rolled fabric regardless of the orientation of top flange


8


encountered on the purlins. More particularly, rolled fabric dispenser


200


provides two tube arms


80


and


82


, which are mounted at an offset distance on each side of frame member


14


. The distance that arms


80


and


82


are offset is, of course, dependent on the length of the angled lower portion of shaft


33


to which glide plate


30


is rotatably attached. In particular, the respective length and offset should be appropriate such that glide mechanism


30


is in alignment with the under surface of top horizontal flange


8


during operation. Since purlin dimensions are normally standard, rod


44


and shaft extension


33


may be designed accordingly to meet the limited number of purlin dimensions found in commerce.




Generally speaking then, the two tubes


80


and


82


are provided so that biasing mechanism


40


may be easily assembled or switched to alternate sides of frame member


14


depending on the orientation of purlin top flange


8


encountered. For example, in order to achieve the desirable ability to choose on the job site which direction (or end of the roof or wall) is best for dispensing, the contractor on the job site, using this invention, can merely unscrew push plate


52


and wing nut


50


if located on the “wrong” side of the dispenser, and thereafter, biasing mechanism


40


may be easily removed and reassembled in the “proper” alternate tubular arm


80


or


82


. This is illustrated in

FIG. 4

by the dotted lines illustrating a phantom purlin


6


′ with a purlin top horizontal flange


8


′ in an opposite orientation with respect to purlin


6


. In order to equip dispenser


200


for use on phantom purlin


6


′, biasing mechanism


40


need only be removed from arm


80


at position A and assembled through arm


82


at position B. Therefore, the contractor always has the unique ability with the subject invention to choose which direction or end of the building (or which wall) to start dispensing from.




Roll fabric engagement member


60


comprises an elongated and generally arcuate metal sheet which is welded or mechanically fastened (or otherwise fixedly attached) to frame member


14


. As stated above, the shape of member


60


should be such that it can accommodate a variety of roll sizes yet will continue to embrace a roll of fabric


90


and allow it to rotate therein as the roll size decreases during dispensing (without coming into interfering contact with purlins


6


).




Guide member


16


of dispenser


200


may take several forms. In one embodiment (FIG.


4


), guide member


16


includes a substantially flat central plate


18


fixedly mounted to frame member


14


with side flanges


20


extending downwardly from each side thereby to better guide dispenser


200


along purlin


6


. Guide member


16


may include a forward extending roller


24


retained by plate


22


, and made of a low friction surface such as nylon or teflon for contact with purlins


6


. In this embodiment, frame member


14


is bolted or welded to central plate


18


. If bolted (

FIG. 4

) then the inside surface of plate


18


may be provided with a teflon pad (now shown) which accommodates the nuts in a counter sunk fashion so that guide member


16


slides freely on surface


8


.




Frame member


14


is preferably designed to extend at an angle proximal the mounting location of guide member


16


in order to ensure improved or increased contact of guide member


16


with purlins


6


during operation of the device (laying of fabric). Moreover, to insure that tubes


80


and


82


are both usable, connected as they are by offsetting brackets


81


and


83


of equal offsetting lengths, frame member


14


should be located in the same plane as purlin


6


so that plate


30


is properly aligned with surface


9


of a purlin


6


regardless of which tube,


80


or


82


, rod


44


with shaft


33


is inserted through.




With reference to

FIG. 10

, another embodiment of the guide member of this invention is illustrated. Here no roller


24


is employed (and it is also optional in the device of FIG.


4


). Moreover, the frame member, here member


14


′ is not bolted to guide member


16


′. Rather, extending from the forward part of upper surface


18


′ are a pair of orificed hinge plates


801


, having aligned orifices


802


therein for retaining hinge pin


803


. Member


14


′ then has orifices (not shown) provided in its sidewalls


805


aligned with orifices


802


through which hinge pin


803


also extends. In this way member


14


′ is free to rotate about pin


803


as is guide member


16


′. This hinge mechanism has two advantages. It assures better contact of guide


16


′ along the top surface of a purlin, and it eliminates the need for bolts or welds to retain member


14


′ on guide


16


′. Of course, the inside upper surface of guide


16


′ can, like the same surface of guide


16


, be provided with a teflon or nylon pad (not shown) to make sliding easier on a purlin.




In a typical operation on roof structure


2


, glide mechanism


30


is in engagement with the under-surface of top horizontal flange


8


(or a bar joist) with guide member


16


embracing its upper surface. The loose end of fabric


90


is then unrolled and secured (e.g. by adhesive tape) to the end of the purlins at the building end from which the dispensing is to commence. Biasing mechanism


40


is then located in the appropriate tube


80


or


82


, depending on which direction the flange


8


of the relevant purlin


6


extends. Via wing nut


50


, the appropriate bias in coil spring


42


is effected. The entire apparatus may then be pushed forward, utilizing push pole


28


, to dispense fabric as sheet


91


. During this initial dispensing, wing nut may be further used to more finely adjust coil spring


42


to achieve the best operating conditions, taking into account, for example, any wind conditions that might affect dispensing.




While this invention has been described with respect to the application of fabric on a roof structure, it is not so limited. The dispensing devices of this invention may also be used to dispense fabric, for example, along a wall structure, such as a generally vertical wall of a metal building, as illustrated in one embodiment in FIG.


7


.




With reference, then, to this

FIG. 7

, there is illustrated a typical metal building wall structure which includes vertical wall studs


301


(only one being shown for convenience). Girts (purlins)


6


are mounted in conventional fashion on studs


301


in a generally horizontal array perpendicular to studs (also called columns)


301


.




In a usual manner, the fabric on roll


90


has been rolled onto a hollow cardboard (or other material) core


305


. For dispensing the fabric in sheet


91


form as illustrated, the initial roll


90


is located at one end of the wall in a vertical position. To accommodate movement, a conventional wheel, ball or similar roller means


307


having a shaft thereon inserted into hollow core


305


, is provided. The first (starting) end of the fabric is attached to the first end of purlins


6


and dispenser


200


is placed on the roll and adjusted. Movement across the structure, then applies sheet


91


as illustrated. Girts


6


may, if desired, be first provided with double faced adhesive tape to hold the fabric in place. If the floor


309


on which the roller


307


resides is not smooth enough for easy rolling, a plate or board may be laid down to make rolling easier. Moreover, in the illustrated embodiment, roll


90


was designed to extend from floor (or ground)


309


the desired height to just below roof


311


. In other instances scaffolding or other structures may have to be used to elevate the roll and move it horizontally to accommodate two or more horizontal sheets proximally provided, one above the other. In each instance dispenser


200


provides a simple and effective device for applying sheet


91


to a wall structure, in addition to a roof structure.




Finally, in dispensing fabric, the dispensers of this invention may be employed to form the sheets in a variety of configurations such as stretched tightly (laterally) across purlins


6


or in a draped fashion between the purlins such as is taught in my co-pending application filed simultaneously herewith and entitled ROLLED FABRIC DISPENSING METHOD, now U.S. Pat. No. 09/511,305, the disclosure of which is incorporated herein by reference.



Claims
  • 1. A rolled fabric dispensing device for applying a sheet of fabric from a roll of fabric over a first surface of a laterally extending flange member of a longitudinally extending structural member of a building, wherein said flange member includes a second surface opposite said first surface, the rolled fabric dispensing device comprising a frame member having attached thereto:a) a handle for moving said device along said structural building member when dispensing fabric from said device; b) a first guide member having a configuration capable of contacting said first surface of said laterally extending flange member and guiding said device along said flange member; c) a second guide member having a configuration and being locatable so as to be capable of contacting said second surface of said flange member and guiding said device along said flange member when said first guide member is in contact with said first surface; d) a fabric retaining member for locating a roll of fabric therein in a dispensing position; and e) a biasing mechanism which biases said first guide member into contact with said first surface, said second guide member into contact with said second surface and said fabric retaining member against a roll of fabric when located therein, wherein said biasing mechanism includes a biasing spring connectable at one end to said frame member and at the other end to said second guide member and means for connecting said biasing spring to said frame member and to said second guide means, said connecting means being so constructed as to allow said second guide means to be in biased contact with said second surface of said flange member when said flange member laterally extends in either the right or left lateral direction from said longitudinally extending structural member and wherein said connecting means includes two hollow tubes connected to said frame member, said frame member including a longitudinal beam member located in substantially the same plane as said longitudinally extending structural member when said guide members are biased onto their respective guiding position and wherein said hollow tubes are located with respect to said frame member so that one of said tubes is located on one side of said plane of said longitudinally extending structural member and the other said tube is located on the other side of said plane such that said second guide member is locatable on either side of said longitudinally extending frame member.
  • 2. A rolled fabric dispensing device according to claim 1 wherein said longitudinally extending structural member includes a web portion attached to said flange member, said web portion having a structural cross member laterally connected thereto and extending therefrom and wherein said guide member comprises a glide member so constructed as to be of a size and profile which allows said glide member to guide said device along said longitudinally extending structural member without contacting said cross member.
  • 3. In a rolled fabric dispensing device for applying a sheet of fabric from a roll of fabric across a building structure comprised of at least one pair of spaced, longitudinally extending substantially parallel structural members, at least one of said members being comprised of a first edge and a second edge separated by a web portion, said second edge of at least one of said members having connected thereto a longitudinal flange member extending laterally from said second edge, said flange comprising a first surface and a second surface to which the sheet is applied, the building structure further including at least one laterally extending cross member connected at one end to the web portion of one of the two longitudinal structural members and at the other end to the web portion of the other of the two longitudinal structural members and so located with respect to the first surface of the flange member so as to define a glide space between the cross member and the flange member;the rolled fabric dispensing device comprising a frame member for contacting the second surface of the flange member, a rolled fabric retention member attached to the frame member for rotatably retaining the fabric roll in contact with the second surface of the flange member and a glide member attached to the frame member and engageable with the first surface of the flange member, the improvement comprising: wherein said glide member is so constructed as to be of a size and profile which allows said glide member to be unobstructed by said cross member when said glide member is in contact with the first surface of the flange member and is moved through said glide space and said sheet of fabric is dispensed by said device and applied to said second surface of said flange member; wherein said glide member is connected to the frame member by a mechanism which biases said glide member against the first surface of the flange member; and wherein said device includes two hollow tubes connected to said frame member, said frame member including a longitudinal beam member which is located in substantially the same plane as said longitudinal structural member which it contacts during dispensing of said fabric and wherein said two hollow tubes are located with respect to said frame member so that one of said tubes is located on one side of said plane of said longitudinal structural member and the other said tube is located on the other side of said plane such that said glide member is locatable on either side of the web portion of a said structural member having said flange member whose second surface has said sheet applied thereto.
  • 4. A device according to claim 3 wherein said glide member includes a member selected from a glide plate or a wheeled mechanism.
  • 5. A device according to claim 3 wherein said hollow tubes include a first and a second end and wherein said mechanism for biasing the glide member against the first surface of the flange member includes a rod movably extending through one of said hollow tubes and having a first end connected to said glide member, a coil spring having a first end and a second end, said first end of said coil spring contacting said second end of said hollow tube and said second end of said coil spring being restrained against expansion by a restraining means, wherein said rod extends through said spring, and said restraining means is so located as to restrain said spring in a compressed condition between said restraining means and said second end of said hollow tube thereby biasing said glide member against the first surface of the flange member.
  • 6. A device according to claim 5 wherein said restraining means is adjustable to thereby adjust the amount of compression in said spring.
  • 7. A device according to claim 5 wherein said rolled fabric retention member is so located and attached to said frame member so as to be biased by said spring to maintain said roll in contact with the second surface of the flange member.
  • 8. A device according to claim 5 wherein said rod slidably extends through said restraining means, said coil spring and said hollow tube and said rod and said coil spring are of a sufficient size to allow said rod to be moved through said tube a sufficient distance against the bias of the coil spring to disengage said glide member from the first surface of the flange.
  • 9. A device according to claim 8 wherein said rod and said spring are of a sufficient size to allow said rod to be moved through said tube a sufficient distance to disengage the device from the building structure.
  • 10. A device according to claim 9 wherein said rod is threaded to receive an adjustable nut member thereon and wherein said restraining means includes a nut member adjustably threaded on said rod and so located at one end of said coil spring such that rotation of said nut on said rod causes the coil spring to expand or contract.
  • 11. A device according to claim 3 wherein said rod, said coil spring and said nut member are removable hollow tubes, thereby to provide an adjustable biasing means and said glide member on either side of said web portion of said structural member having said flange member whose second surface has said sheet applied thereto.
  • 12. A device according to claim 3 wherein said device includes a guide member for maintaining the alignment of said device with said second surface of said flange member and a hinge member rotatably connecting said frame member to said guide member.
  • 13. A device according to claim 3 wherein said device includes a push pole connected to said frame member at an angle such that said push pole is substantially parallel to said structural member on which said fabric is to be dispensed.
US Referenced Citations (3)
Number Name Date Kind
3698972 Lenzner Oct 1972
4869044 Wald Sep 1989
6195958 Neifer et al. Mar 2001