CA2024740A1 - Applying drywall tape to drywall joint - Google Patents
Applying drywall tape to drywall jointInfo
- Publication number
- CA2024740A1 CA2024740A1 CA 2024740 CA2024740A CA2024740A1 CA 2024740 A1 CA2024740 A1 CA 2024740A1 CA 2024740 CA2024740 CA 2024740 CA 2024740 A CA2024740 A CA 2024740A CA 2024740 A1 CA2024740 A1 CA 2024740A1
- Authority
- CA
- Canada
- Prior art keywords
- tape
- roller
- drywall
- joint
- support structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Landscapes
- Adhesive Tape Dispensing Devices (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Method and apparatus for applying drywall tape to joint compound along a drywall joint and simultaneously spreading the compound contacted by the tape. The tape in roll form is delivered to a tape applicator from a tape dispenser fixed to a user's belt. The dispenser pivots to follow movement of the tape applicator. The tape applicator has a support frame including guide posts for directing the tape onto a roller. A force is continually applied to the tape to resist tape movement relative to the guide posts and roller.
The roller is pressed against the tape with sufficient force to spread the jointcompound beneath the tape and simultaneously rolled over the tape thereby overcoming the movement-resisting force, spreading the joint compound and and embedding the tape along the joint. A cutting blade extends forwardly over the roller ant trails the roller as the tape is applied. When taping is complete, the support structure is manipulated so that the movement-resisting force tensions the tape over the roller and the support structure is pivoted about theroller to engage the cutting blade with the tape.
Method and apparatus for applying drywall tape to joint compound along a drywall joint and simultaneously spreading the compound contacted by the tape. The tape in roll form is delivered to a tape applicator from a tape dispenser fixed to a user's belt. The dispenser pivots to follow movement of the tape applicator. The tape applicator has a support frame including guide posts for directing the tape onto a roller. A force is continually applied to the tape to resist tape movement relative to the guide posts and roller.
The roller is pressed against the tape with sufficient force to spread the jointcompound beneath the tape and simultaneously rolled over the tape thereby overcoming the movement-resisting force, spreading the joint compound and and embedding the tape along the joint. A cutting blade extends forwardly over the roller ant trails the roller as the tape is applied. When taping is complete, the support structure is manipulated so that the movement-resisting force tensions the tape over the roller and the support structure is pivoted about theroller to engage the cutting blade with the tape.
Description
J~ 3 .. ..
, .
The invention relates to the forming of joints between drywall sheets and, more particular1y, to methods and apparatus for embedding drywall 5 tape in joint compound.
BACKGROUND OP T~ INVE~llON
Drywa11 joints can be formed largeb with bladed spreading tools. Joint compound is applied to a gap between drywall panels and may be partially spread and smoothed. Drywa11 tape can then be run along and adhered 10 to the joint compound. A putty knife may then be used to embed the tape in the compound and to spread any excess compound beneath the tape. The exposed face of the tape may then be cleaned and excess compound removed. Purther steips, iwluding feathering the joint, are normally involved, but the invention is prirnarlly concerned with the preliminary steps noted.
lS The manual process is very time-consuming. Current practice ;
involves mechanized dispensing of compound and tape. An elongate hollow tool about six feet in length is used. Joint compound is pumped into the interior of the tool and maintained under pressure. A nozzle for dispensing the compound is located at a forwa d end of the tool. A roll of tape is mounted on 20 the exterior of the taping tool and runs to a roller at the forward end of the tool.
Appropriate controls are provided to trigger dispensing of thc compound from the nozzle. The roller and the nozzle are posidoned so that the compound is applied to the joint and the tape simultaneously àpp1ied to the compound. The r~ller generally has equal-diameter rings which engage the tape at its centre and :. .., :~:., ;~ 2S adjacent either side edge, the object being to contact the tape against the drywall ~
compound. A tape cutdng mechanism can be triggered once the tape has been ;;
applied. With a singlo pass of thc tool, joint compound is applied along a - 1- ';" : '~
. ,::, ; - ., ~ ., ~ a 2 ~ 7 ~
drywall joint and tape is contacted along the length of the compound.
Such tools and practices having shortcomings. The tape is only lightly adhered to the surface of the joint compound. Steps must then be taken to embed the tape and spread the compound, which is nonnally done by hand S with a bladed tool. The exposed face of the tape must then be cleaned. The embedding and cleaning process is time-consuming.
SUM~IARY OF T~E INVENTION
In one aspect, the invention provides a method of applying and embedding drywall tape in joint compound along a drywall joint. It involves 10 guiding one face of the tape onto a roller rotatably mounted on a movable support structure. The roller is used to press the guided tape onto the joint compound of the drywall joint with sufficient force to spread the joint compound and is simultaneously r~lled over the one face of the tape along the drywall 30int. This condnually embeds the tape in the drywall compound along the drywall joint and spreads the joint compound contacted by the other face of , the tape. The process is fast and no extensive cleaning of the exposed face of tho tape is required.
The method preferably involves continual application of a movement- resisting force to the tape to prevent slippage of the tape relative to 20 the roller. The movement-resisdng force is overcome and tape is drawn onto the roller with the pressing of the tape onto the joint compound and the simultaneous rolling of the roller over the tape. The tape is preferably cut after the embedding with a cutting blade fixed to the support structure. The cutting blade may be positioned such that it extends forwardly over the roller and trails 25 the roller as the roller embeds the tape in the drywall compound along the drywall joint. The cutting may comprise piercing the tape where it h adhered to the joint compound with a forward pointed portion of the blade to form a slit and manipulating the support structure largely by pivoting to extend the slit and 2 ~ L~ ~
sever the tape.
In another aspect, the invention provides apparatus for applying drywall tape to joint compound along a drywall joint and simultaneously therewith embedding the tape in the joint compound and spreading the joint S compound contacted by the tape. The apparatus includes a support structure having forward and rear end portions. A handle is fixed to the support structure, permitting the support structurei to be manipulated. A roller is mountcd for rotation on thc forward end portion of the support structure.
Guide means mounted on the support structure direct one face of the tape onto 10 the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint. Cutting means are attached to the support structure for cutting of the tape after application to the drywall compound. Thecutting means preferably comprise a Uade with a generally V-shaped cutting lS edgo that extends forwardly over the roller. The blade trails the roller during embedding of tho tape in the joint compound along the joint, but can bc engaged ;~
with tho tape by pivoting the support structure. The roller may be formed with a 90-degreo V-shapod rolUng surface to permit taping of corners.
It is dosirable to make the tool operable with one hand and 20 remove tho weight of a roll of drywall tape. One reason is that the work would othen~ise be obUged throughout a warkday to hold the tape with an oxtended arm. Another roason is to permit the worker to hold a trowd carrying joint compound in one hand and the taping apparatus in another and readily ~ -switch between the two so that compound and tape app1ication can proccod ~ ;
~S quickly~ In that regard, the irlvendon also provides a tape dispenser which ~ ;;
fasten8 to tho usor's clothing near his waist, preferably by fastening to a belt.
Tke tapo dispenser comprises a framo, means for fastening the frame to an item of the user's clothing (preferably a hook that fits to the uscr s belt), moans ~ ~ 2 ~ r~ s {~ ~ ~
attached to the frame for recdving and retaining the roll permitting the roll torotate to dispense the tape. To ensure that the tape follows a worker's hand movement, the frame is formed with an upper frame portion to which the fastening means are secured, a lower frame portion to which the roll receiving S and retaining means are secured, and means joining the upper and 10wer frameportions and permitting reladve pivodng at least about an axis substantially parallel to the rotadonal axis of the roll. Accordingly, when a worker kneels tocomplete the lower end of a verdcal drywall joint, the lower frame pivots and permits the tape delivery angle to change.
O~er aspects of the invendon will be apparent from a descripdon below of a preferted embodiment and the various aspects of the invendon will be more speciflcaUy defined in the appended c1aims.
nE~SCRln'lON OF T~E DRAWI~GS
The hvendon will be better understood with reference to lS drawhgs illustrating preferred embodiments h which: ;
fig. 1 is a perspectdve view showhg a worker using a drywa11 taping tool and cooperathg tape dispens~, figs. 2 and 3 shows pordons of a drywall joint respecdve1y before and after using the taphg tool to apply and embed drywall tape;
fig. 4 is a perspecdve view of the taping tool;
fg. S is a view along lines S-S of fig. 4 further detailing thc taphg tool and showhg tape being applied and embedded in a drywall pint;
fig. 6 is a perspecdve view of a taping tool adapted to embed -drywall tape in joint compound along 90 degree corners;
2S fig. 7 is an exploded perspective view of the tape dispensa of fig. l;
fig. 8 is a fragmented verdcal cross-secdon showing the tape applicator of fig.1 pivoted to engage a cutting element with the drywall tape.
Reference is made to figs. 4 and 5 which illustrate a taping tool 10 constructed according to the invendon. The taping tool 10 comprises a S support structure 12 having forwart and rear end pordons 14, 16. The support structure 12 consists of a pair of substantiaUy parallel, spaced-apart metal plates 18, 20 and forward and rear cross-members 22, 24 spot-welded to and rigidly joining the pair of plates 18, 20. The forward cross-member 22 is integrally formet with an upwartly and rearwardly extending bracket 26. The taping tool 10 can be operatet with one hant using a generaUy cylintrical wooden handle 28 fixet to the rear cross-member 24 and the bracket 26 with screws. A metal loop 30 in pivotaUy eonneetod to the exteriorof one plate 18. The permits temporary loeation of the taping tool 10 on a worker's thumb to free his prefotred hand, right or loft, for applieation of joint eompound from a trowel 1S otherwise held in the other hand.
A roller 32 i8 rotatably mounted on the f~rward strueture ponion 14 of tho suppon struetute 12 with a pin 34 fixed between tho plates 18, 20. Its ~;
... . .. .
rotatlonal axio i8 perpondieular to tho plate8 18,20. A guido structure is defined by flvo steol posts 3644 (ovon numbet8 only) whieh oxtend porpendicularly ~ ' ~ ,. . . .
botwoon tho pair of spaeod-apan p1atos 18, 20. Tho guido strueture teeeivos the tape 46 from a roll 48 and guide8 ono faco S0 of tho tape 46 onto tho roller 32.Tho roller 32 has a eireu1ar cylindrieal rolling sutfaee S2 (indieated in fig. 4) appropriate for use on a planar joint, such as the joint S4 formed bet~,veen the - ~ `
pair of drywall panels S6, S8 illustrated in fig. 1-3. A eutting blade 60 is fixed 2S to the suppon strueture 12, el~tends forwatdly over the roUer 32, and has a fotwatdly-diteeted cutting etgo 62.
Tho relativo configuratlon of tho various elements of tho taping tool 10 should be noted. Tho configuration has beon seleeted to onsute proper ;~
. ~ ~.....
- S -,' ''', ' "
.~ ~ 2 ~
and safe application of the tape 46 along the fu11 length of the joint 54 and toensure proper cutting of the tape 46 against the joint S4. It will be noted that the support structure 12 has upper and lower surfaces (genera11y indicated with reference numbers 66,68 in fig.5) extending transversely between the forward S and rear end portions. In this embodiment of the invention, the surfaces are defined essentially by side edges of the pair of plates 18,20. The handle 28 and the cutting blade 60 are posidoned over the upper surface 66, and the handle 28 extends in a rearward direction relative to the support structure 12 from a position rearwardly of the cutting blade 60. The guide posts 36-44 define a path below the upper surface 66, along which the tape 46 is guided to the roller 32. D~wall tape has par~icularly shatp edges that can readily cut a worker's skin. The arrangement avoids such contact, particularly during taping of the upper and lower ends of the drywall joint S4. It simultsneous1y ensures that the taping too1 10 can be properly manipulated with the handle 28, lS particuhrly at upper and lower ends of the joint S4, to apply sufficient force to the tape 46 to embed the tape 46 in the joint compound 64. ~Iso, when the tape 46 has boen fully Nn to the bottom of tho joint S4, the handlc 28 and the cutdngblado 60 aro proporly posidonod to pierco and sever tho tapo 46.
A force is continually applied to tho tape 46 to resist movement of the tapo 46 leladvo to tho guido pO8tS 36-44 and roller 32. This force is applied by a ~silient metal plate 70 fixed to the forward cross-member 22 and bent to press against the one face S0 of the tape 46 and fo~ce the opposite face71 against one post 40. The amount of force applied is not particularly critical.
It should be sufficient to prevent slipping of the tape 46 rehtive to tho roller 32 2S ant koep the cut tape oporatively locatet on the roller 32 so that atjustment is not sequiret to apply tho tapo 46 to a series of joints. It should, however, pormit fonvar~ movement of the tapo 46 through the assembly of guide posts 36-44 onto the roller 32 in response to pressing of the tape 46 by the roller 32 ':''''~' against the joint S4 to be taped and simultaneous rolling over the tape 46. The arrangement of resilient meta1 plate 70 and post 40 represents a very simple andcost-effective configuration of means for app!ying the movement-resisting force.
S The cutting blade 60 is formed on a generally U-shaped metal plate fixed to each of the metal plates 18,20 of the support structure 12 by spot-welting. The forwardly-directed cutting edge 62 i8 V-shapsd with a pointed cutting edge portion 72 and a pair of cutting edge portions 73,74 (indicated in fig.4) extending laterally and rearwardly relative to the pointed cutting edge portion 72. As apparent in figs. S and 8, the pointed portion 72 extents forwardly beyont the most forward surface of the roller 32. This ~ ;
permits the forwart pointet portion 72 to be phroted readily about the roller 32through the one face S0 of the tape 46 against the drywall joint S4, as apparentin fig. 8, to form a slit in the tape 46. The rear support structure portion 16 can ; `
lS then bo further pivotct upwardly re1ative to the forward structure portion 14 to ` ;~ ~ ~
causo tho cutting edge portions 73,74 to extent the slit and sever the tape 46. ` ~ Y
This i8 tho tapo cutting mothot prefer~cd by tho inventor. The minor gouging of ..; . ,. ~
tho d ywallpint S4 is inconsequential. Altffnativoly, the tapo 46 may bo pani~llly drawn from thopht S4 and ten8ioned over the roller 32 (with the movoment-resisting forco). Tho support structure may bo thon pivoted about tho roller 32 to ffngage tho pointct portion 72 with the tape 46 to form an initial ;
slit, and then pivoted further to causo the tape 46 to be seve~ The 1atter ;method is dependable if more complex means are provided to resist tape mo~omont in a more positiv~, manner during cutting, and is consequently not 2S prefffTod. -The taping tool 10 is used in comblnadon with a tape dispenser 7S adapted to recoive the roll 48. The tapo dispensor 75 is illustratcd in fig. 1 in 2~ 7~
use with the taping tool 10 and is detailed in the exploded perspective view of fig. 7. The tape dispenser 75 comprises a &ame formed of metal strap. It has upper and lower frame portions 76, 78 which are freely pivoting relative to one another. The upper frame portion 76 is bent to define a hook 80 for fitting S about a user's belt 82. The lower frame portion 78 comprises a vertical member 84 and a horizontal cross-member 86. Flanges are used to delineate a compartment for receiving and providing some protection for the roll 48. These include a horizontal1y-oriented flange 88 extending transversely from a lower end of the vertical member 84, and a pair of vertically-oriented flanges 90, 92 10 extending transversely from opposite ends of the horizontal cross-member 86, in the same direction as the horizontally-oriented flange 88.
~ cylindrical member 94 is fixed to the horizontal member and is dimcnsioned to fit into a central aporturo 100 of the roll 48 along the roll's rotational axis. A length of wire 102 is used to join the pair of vertically oriented flanges 90,92 to retain the roll 48 on the cylindrical member 94. One end of tho wiro 102 is formed with a spring-like hook 104, whilo the othcr end 106 is straight. The straight end 106 is inserted through one of a pair 108 of holes in one vertical flange 90 and extended through a single holo l lO in the opposito vortical flange 92. The hook 104 is shaped appropriately and is sufficiently resilient to lodge in the twin holes 108 thereby releasably retaining the length of wire 102 between the vertical flanges 90, 92.It can be readily removed to replace the roll 48.
The uppcr and lower frame portions 76,78 pivot freely about a ;:
bolt 112. The pivot axis is p~rallel and substandally concentric with the 2~ rotational axis of the roll 48. A pair of apertures are provided, one aperture 114 in the upper framo pordon 76, the other aperture 116 in the lower frame pordon 78 substandally concentric with the roll 48 suppordng member. The bolt 112 is 2 ~ 2 ~". ~
extended through the aligned apertures 114,116 and secured by a pair of nuts(on1y one nut 118 illustrated), the head 120 of the bolt 112 being located in the interior of the cylindrical member 94 and abutted against the horizonta1 cross-member 86. Tension on the free end of a tape 46 causes the roll 48 to rotate andS dispense tape. When the worker kneels, for example, at the foot of a vertical drywall joint 54, the lower frame portion 78 is free to pivot relative to the upper frame portion 76 so the tape end can follow movement of the tape taping tool 10. ' ' ''~
Use of the taping tool 10 and dispenser 75 will be described 10 with reference to figs. 1-3,5 and 8. Preliminary step,s involve installing the roll ~ ;.
48 in the dispensor and securing the dispenser 7S to the worker's belt 82. The frce end of the tape 46 is fed by hand through the guide posts 36-44 until the one face S0 engages tho roller 32. This involves manually deflecting the resilient met~al plate 70 to permit threading of the tape 46 between the posts 36 lS 44. The metal p1ate 70 is then re-engaged with the tape 46 whose face are lightly clampcd betwcen the plate 70 and the post 40 to prevent rearward , ..
slippage of the tape 46.
The wker first applies the joint compound 64 along the joint ; S4. Assuming that the worlter is right~hnded, he can suspend the taping too1 20 10 from the thumb of his left hant using tho loop 30. He transfers the trowd containing the compound to his right hand and applies compound along the ;
. . , ~ .
length of thc joint S4 so that the joint S4 has the appcarance indicated in fig.2.
He then returns the trowel to his left hand, removes the taping tool 10 from hisleft thumb, and grips the taping tool 10 in his right hand with the handle 28. He 2S then p~esses the tape 46 with ~he roller 32 onto the joint 54 compound of the trywall joint using sufficient force to spread the joint compound 64, as in fig.S. He simultaneously rolls the roller 32 over the face S0 of the tape 46 in a downwart direction along the drywall joint S4. This causes the movement ~
g ~ `
"
j, "
~
resisting force applied to the tape 46 by the resilient metal plate 70 and post 50 to be overcome and the tape 46 is continually drawn through the guide posts 36-44 onto the roller 32 and applied to the joint compound 64 along the dtywall joint 54. As apparent in fig. S, the tape 46 is continua11y applied and embeddedS in the joint compound 64 and the joint compound 64 is continually spread.
The cutting blade 60 trails the roller 32 as the tape 46 is being applied and embedded in thc joint compound 64, as apparent in fig. S. When the worker reaches the bottom of the joint S4, the tape 46 is cut substantially as indicated in fig. 8. The pointed portion 72 of the cutting edge 62 is pushed through the t~pe 46 into the joint compound 64, and the support structure 12 is then manipulated,1argely by pi~oting about the rolla 32, to sever the tape 46.
Tho worker can then proceed to another joint. He suspends the taping tool 10 with the loop 30 from the thumb of his left hand. He moves the trowel containing the compound from his left hand to his right hand and applies lS the oompound along the length of thepint. He then transfer the trowel to his 1efe hand and g ips ~he taping tool 10. The taping and spreading steps are Kpeated. This is done und1 a11 pints are taped or the roll 48 of tape must be replacod The pints can thercafter be finished in a oonventional manner. The :
taping process is oxceedingly fast, permitting optimal use of a work's time ; 20 and allows wk to be performed in an effective manner by a single worker.
Refera~ is made to fig. 6 which illustrate a taping tool 122 adapted for taping corners. Components common to the taping tools 10, 122 have been labelled with the same reference numerals. The taping too1 122 has a roller 124 with a 90 degree V-shaped rolling surface 126. For purposes of this 2S specification, the term "90 degree V-shaped rolling surface" should be understood as corresponding substantially to a surface of revolution produced by tovolving two lino segmonts through 360 degrees about the rotational axis of 2 ~ ~ :
the roller, the two line segments being co-planar with the rotational axis, extending from a common point towards the rotational axis, being subtended by an angle of 90 degrees, and each oriented at 45 degrees relative to the rotational axis. This configuration is appropriate for embedding tape in a corner where S drywall panels meet at 90 degrees. The taping tool 122 also has a cutting blade 128 with a V-shaped cutting edge 130 extending forwardly over the roller 124 and bcyond the most forward surface of the roller 124. The pointed portion 132 of the V-shaped cutting edge 130 is substantially centered laterally relative to the most forward surface of the roller 124. The provision of a V-shaped ;
cutdng cdge in the second taping tool 122 accommodates right-angled panels, ;
fitdng into corner~ and avoiding any gouging of adjacent panels. It should be noted that the certain claims of this specificadon roquire a "generally V-shaped"
cutdng odge. This should not be interpretcd as requiring the precise V-shape `-characterisdc of the two taping tools 10, 122. The object of this aspect of the lS invcndon is to perrnit a forward pordon of the cutting edge to form an initial slit ccntrally in tho tapc against the drywall joint (without excessive gouging of the ~;~ pane1s ad3accnt thc joint) and penTut broader pordons of the cutdng odge to sever the tape largely at or above the surface of tho panels with a pivodng-type ~ -motdon.
It will be apprcciatcd that a pardcul~lr embodimcnt of the invcntion has been dcscdbed and that modifications may be made therein - - :
without depardng from the spirit of thc inventdon or necessarily depardng from the scope of the appended claims.
',.,':,,.~'....
.. .
.. . .
., ,.:
.:
''. ' '' - 11 - ':' ' ' :;.....
... .. .
, . . .~
, .
The invention relates to the forming of joints between drywall sheets and, more particular1y, to methods and apparatus for embedding drywall 5 tape in joint compound.
BACKGROUND OP T~ INVE~llON
Drywa11 joints can be formed largeb with bladed spreading tools. Joint compound is applied to a gap between drywall panels and may be partially spread and smoothed. Drywa11 tape can then be run along and adhered 10 to the joint compound. A putty knife may then be used to embed the tape in the compound and to spread any excess compound beneath the tape. The exposed face of the tape may then be cleaned and excess compound removed. Purther steips, iwluding feathering the joint, are normally involved, but the invention is prirnarlly concerned with the preliminary steps noted.
lS The manual process is very time-consuming. Current practice ;
involves mechanized dispensing of compound and tape. An elongate hollow tool about six feet in length is used. Joint compound is pumped into the interior of the tool and maintained under pressure. A nozzle for dispensing the compound is located at a forwa d end of the tool. A roll of tape is mounted on 20 the exterior of the taping tool and runs to a roller at the forward end of the tool.
Appropriate controls are provided to trigger dispensing of thc compound from the nozzle. The roller and the nozzle are posidoned so that the compound is applied to the joint and the tape simultaneously àpp1ied to the compound. The r~ller generally has equal-diameter rings which engage the tape at its centre and :. .., :~:., ;~ 2S adjacent either side edge, the object being to contact the tape against the drywall ~
compound. A tape cutdng mechanism can be triggered once the tape has been ;;
applied. With a singlo pass of thc tool, joint compound is applied along a - 1- ';" : '~
. ,::, ; - ., ~ ., ~ a 2 ~ 7 ~
drywall joint and tape is contacted along the length of the compound.
Such tools and practices having shortcomings. The tape is only lightly adhered to the surface of the joint compound. Steps must then be taken to embed the tape and spread the compound, which is nonnally done by hand S with a bladed tool. The exposed face of the tape must then be cleaned. The embedding and cleaning process is time-consuming.
SUM~IARY OF T~E INVENTION
In one aspect, the invention provides a method of applying and embedding drywall tape in joint compound along a drywall joint. It involves 10 guiding one face of the tape onto a roller rotatably mounted on a movable support structure. The roller is used to press the guided tape onto the joint compound of the drywall joint with sufficient force to spread the joint compound and is simultaneously r~lled over the one face of the tape along the drywall 30int. This condnually embeds the tape in the drywall compound along the drywall joint and spreads the joint compound contacted by the other face of , the tape. The process is fast and no extensive cleaning of the exposed face of tho tape is required.
The method preferably involves continual application of a movement- resisting force to the tape to prevent slippage of the tape relative to 20 the roller. The movement-resisdng force is overcome and tape is drawn onto the roller with the pressing of the tape onto the joint compound and the simultaneous rolling of the roller over the tape. The tape is preferably cut after the embedding with a cutting blade fixed to the support structure. The cutting blade may be positioned such that it extends forwardly over the roller and trails 25 the roller as the roller embeds the tape in the drywall compound along the drywall joint. The cutting may comprise piercing the tape where it h adhered to the joint compound with a forward pointed portion of the blade to form a slit and manipulating the support structure largely by pivoting to extend the slit and 2 ~ L~ ~
sever the tape.
In another aspect, the invention provides apparatus for applying drywall tape to joint compound along a drywall joint and simultaneously therewith embedding the tape in the joint compound and spreading the joint S compound contacted by the tape. The apparatus includes a support structure having forward and rear end portions. A handle is fixed to the support structure, permitting the support structurei to be manipulated. A roller is mountcd for rotation on thc forward end portion of the support structure.
Guide means mounted on the support structure direct one face of the tape onto 10 the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint. Cutting means are attached to the support structure for cutting of the tape after application to the drywall compound. Thecutting means preferably comprise a Uade with a generally V-shaped cutting lS edgo that extends forwardly over the roller. The blade trails the roller during embedding of tho tape in the joint compound along the joint, but can bc engaged ;~
with tho tape by pivoting the support structure. The roller may be formed with a 90-degreo V-shapod rolUng surface to permit taping of corners.
It is dosirable to make the tool operable with one hand and 20 remove tho weight of a roll of drywall tape. One reason is that the work would othen~ise be obUged throughout a warkday to hold the tape with an oxtended arm. Another roason is to permit the worker to hold a trowd carrying joint compound in one hand and the taping apparatus in another and readily ~ -switch between the two so that compound and tape app1ication can proccod ~ ;
~S quickly~ In that regard, the irlvendon also provides a tape dispenser which ~ ;;
fasten8 to tho usor's clothing near his waist, preferably by fastening to a belt.
Tke tapo dispenser comprises a framo, means for fastening the frame to an item of the user's clothing (preferably a hook that fits to the uscr s belt), moans ~ ~ 2 ~ r~ s {~ ~ ~
attached to the frame for recdving and retaining the roll permitting the roll torotate to dispense the tape. To ensure that the tape follows a worker's hand movement, the frame is formed with an upper frame portion to which the fastening means are secured, a lower frame portion to which the roll receiving S and retaining means are secured, and means joining the upper and 10wer frameportions and permitting reladve pivodng at least about an axis substantially parallel to the rotadonal axis of the roll. Accordingly, when a worker kneels tocomplete the lower end of a verdcal drywall joint, the lower frame pivots and permits the tape delivery angle to change.
O~er aspects of the invendon will be apparent from a descripdon below of a preferted embodiment and the various aspects of the invendon will be more speciflcaUy defined in the appended c1aims.
nE~SCRln'lON OF T~E DRAWI~GS
The hvendon will be better understood with reference to lS drawhgs illustrating preferred embodiments h which: ;
fig. 1 is a perspectdve view showhg a worker using a drywa11 taping tool and cooperathg tape dispens~, figs. 2 and 3 shows pordons of a drywall joint respecdve1y before and after using the taphg tool to apply and embed drywall tape;
fig. 4 is a perspecdve view of the taping tool;
fg. S is a view along lines S-S of fig. 4 further detailing thc taphg tool and showhg tape being applied and embedded in a drywall pint;
fig. 6 is a perspecdve view of a taping tool adapted to embed -drywall tape in joint compound along 90 degree corners;
2S fig. 7 is an exploded perspective view of the tape dispensa of fig. l;
fig. 8 is a fragmented verdcal cross-secdon showing the tape applicator of fig.1 pivoted to engage a cutting element with the drywall tape.
Reference is made to figs. 4 and 5 which illustrate a taping tool 10 constructed according to the invendon. The taping tool 10 comprises a S support structure 12 having forwart and rear end pordons 14, 16. The support structure 12 consists of a pair of substantiaUy parallel, spaced-apart metal plates 18, 20 and forward and rear cross-members 22, 24 spot-welded to and rigidly joining the pair of plates 18, 20. The forward cross-member 22 is integrally formet with an upwartly and rearwardly extending bracket 26. The taping tool 10 can be operatet with one hant using a generaUy cylintrical wooden handle 28 fixet to the rear cross-member 24 and the bracket 26 with screws. A metal loop 30 in pivotaUy eonneetod to the exteriorof one plate 18. The permits temporary loeation of the taping tool 10 on a worker's thumb to free his prefotred hand, right or loft, for applieation of joint eompound from a trowel 1S otherwise held in the other hand.
A roller 32 i8 rotatably mounted on the f~rward strueture ponion 14 of tho suppon struetute 12 with a pin 34 fixed between tho plates 18, 20. Its ~;
... . .. .
rotatlonal axio i8 perpondieular to tho plate8 18,20. A guido structure is defined by flvo steol posts 3644 (ovon numbet8 only) whieh oxtend porpendicularly ~ ' ~ ,. . . .
botwoon tho pair of spaeod-apan p1atos 18, 20. Tho guido strueture teeeivos the tape 46 from a roll 48 and guide8 ono faco S0 of tho tape 46 onto tho roller 32.Tho roller 32 has a eireu1ar cylindrieal rolling sutfaee S2 (indieated in fig. 4) appropriate for use on a planar joint, such as the joint S4 formed bet~,veen the - ~ `
pair of drywall panels S6, S8 illustrated in fig. 1-3. A eutting blade 60 is fixed 2S to the suppon strueture 12, el~tends forwatdly over the roUer 32, and has a fotwatdly-diteeted cutting etgo 62.
Tho relativo configuratlon of tho various elements of tho taping tool 10 should be noted. Tho configuration has beon seleeted to onsute proper ;~
. ~ ~.....
- S -,' ''', ' "
.~ ~ 2 ~
and safe application of the tape 46 along the fu11 length of the joint 54 and toensure proper cutting of the tape 46 against the joint S4. It will be noted that the support structure 12 has upper and lower surfaces (genera11y indicated with reference numbers 66,68 in fig.5) extending transversely between the forward S and rear end portions. In this embodiment of the invention, the surfaces are defined essentially by side edges of the pair of plates 18,20. The handle 28 and the cutting blade 60 are posidoned over the upper surface 66, and the handle 28 extends in a rearward direction relative to the support structure 12 from a position rearwardly of the cutting blade 60. The guide posts 36-44 define a path below the upper surface 66, along which the tape 46 is guided to the roller 32. D~wall tape has par~icularly shatp edges that can readily cut a worker's skin. The arrangement avoids such contact, particularly during taping of the upper and lower ends of the drywall joint S4. It simultsneous1y ensures that the taping too1 10 can be properly manipulated with the handle 28, lS particuhrly at upper and lower ends of the joint S4, to apply sufficient force to the tape 46 to embed the tape 46 in the joint compound 64. ~Iso, when the tape 46 has boen fully Nn to the bottom of tho joint S4, the handlc 28 and the cutdngblado 60 aro proporly posidonod to pierco and sever tho tapo 46.
A force is continually applied to tho tape 46 to resist movement of the tapo 46 leladvo to tho guido pO8tS 36-44 and roller 32. This force is applied by a ~silient metal plate 70 fixed to the forward cross-member 22 and bent to press against the one face S0 of the tape 46 and fo~ce the opposite face71 against one post 40. The amount of force applied is not particularly critical.
It should be sufficient to prevent slipping of the tape 46 rehtive to tho roller 32 2S ant koep the cut tape oporatively locatet on the roller 32 so that atjustment is not sequiret to apply tho tapo 46 to a series of joints. It should, however, pormit fonvar~ movement of the tapo 46 through the assembly of guide posts 36-44 onto the roller 32 in response to pressing of the tape 46 by the roller 32 ':''''~' against the joint S4 to be taped and simultaneous rolling over the tape 46. The arrangement of resilient meta1 plate 70 and post 40 represents a very simple andcost-effective configuration of means for app!ying the movement-resisting force.
S The cutting blade 60 is formed on a generally U-shaped metal plate fixed to each of the metal plates 18,20 of the support structure 12 by spot-welting. The forwardly-directed cutting edge 62 i8 V-shapsd with a pointed cutting edge portion 72 and a pair of cutting edge portions 73,74 (indicated in fig.4) extending laterally and rearwardly relative to the pointed cutting edge portion 72. As apparent in figs. S and 8, the pointed portion 72 extents forwardly beyont the most forward surface of the roller 32. This ~ ;
permits the forwart pointet portion 72 to be phroted readily about the roller 32through the one face S0 of the tape 46 against the drywall joint S4, as apparentin fig. 8, to form a slit in the tape 46. The rear support structure portion 16 can ; `
lS then bo further pivotct upwardly re1ative to the forward structure portion 14 to ` ;~ ~ ~
causo tho cutting edge portions 73,74 to extent the slit and sever the tape 46. ` ~ Y
This i8 tho tapo cutting mothot prefer~cd by tho inventor. The minor gouging of ..; . ,. ~
tho d ywallpint S4 is inconsequential. Altffnativoly, the tapo 46 may bo pani~llly drawn from thopht S4 and ten8ioned over the roller 32 (with the movoment-resisting forco). Tho support structure may bo thon pivoted about tho roller 32 to ffngage tho pointct portion 72 with the tape 46 to form an initial ;
slit, and then pivoted further to causo the tape 46 to be seve~ The 1atter ;method is dependable if more complex means are provided to resist tape mo~omont in a more positiv~, manner during cutting, and is consequently not 2S prefffTod. -The taping tool 10 is used in comblnadon with a tape dispenser 7S adapted to recoive the roll 48. The tapo dispensor 75 is illustratcd in fig. 1 in 2~ 7~
use with the taping tool 10 and is detailed in the exploded perspective view of fig. 7. The tape dispenser 75 comprises a &ame formed of metal strap. It has upper and lower frame portions 76, 78 which are freely pivoting relative to one another. The upper frame portion 76 is bent to define a hook 80 for fitting S about a user's belt 82. The lower frame portion 78 comprises a vertical member 84 and a horizontal cross-member 86. Flanges are used to delineate a compartment for receiving and providing some protection for the roll 48. These include a horizontal1y-oriented flange 88 extending transversely from a lower end of the vertical member 84, and a pair of vertically-oriented flanges 90, 92 10 extending transversely from opposite ends of the horizontal cross-member 86, in the same direction as the horizontally-oriented flange 88.
~ cylindrical member 94 is fixed to the horizontal member and is dimcnsioned to fit into a central aporturo 100 of the roll 48 along the roll's rotational axis. A length of wire 102 is used to join the pair of vertically oriented flanges 90,92 to retain the roll 48 on the cylindrical member 94. One end of tho wiro 102 is formed with a spring-like hook 104, whilo the othcr end 106 is straight. The straight end 106 is inserted through one of a pair 108 of holes in one vertical flange 90 and extended through a single holo l lO in the opposito vortical flange 92. The hook 104 is shaped appropriately and is sufficiently resilient to lodge in the twin holes 108 thereby releasably retaining the length of wire 102 between the vertical flanges 90, 92.It can be readily removed to replace the roll 48.
The uppcr and lower frame portions 76,78 pivot freely about a ;:
bolt 112. The pivot axis is p~rallel and substandally concentric with the 2~ rotational axis of the roll 48. A pair of apertures are provided, one aperture 114 in the upper framo pordon 76, the other aperture 116 in the lower frame pordon 78 substandally concentric with the roll 48 suppordng member. The bolt 112 is 2 ~ 2 ~". ~
extended through the aligned apertures 114,116 and secured by a pair of nuts(on1y one nut 118 illustrated), the head 120 of the bolt 112 being located in the interior of the cylindrical member 94 and abutted against the horizonta1 cross-member 86. Tension on the free end of a tape 46 causes the roll 48 to rotate andS dispense tape. When the worker kneels, for example, at the foot of a vertical drywall joint 54, the lower frame portion 78 is free to pivot relative to the upper frame portion 76 so the tape end can follow movement of the tape taping tool 10. ' ' ''~
Use of the taping tool 10 and dispenser 75 will be described 10 with reference to figs. 1-3,5 and 8. Preliminary step,s involve installing the roll ~ ;.
48 in the dispensor and securing the dispenser 7S to the worker's belt 82. The frce end of the tape 46 is fed by hand through the guide posts 36-44 until the one face S0 engages tho roller 32. This involves manually deflecting the resilient met~al plate 70 to permit threading of the tape 46 between the posts 36 lS 44. The metal p1ate 70 is then re-engaged with the tape 46 whose face are lightly clampcd betwcen the plate 70 and the post 40 to prevent rearward , ..
slippage of the tape 46.
The wker first applies the joint compound 64 along the joint ; S4. Assuming that the worlter is right~hnded, he can suspend the taping too1 20 10 from the thumb of his left hant using tho loop 30. He transfers the trowd containing the compound to his right hand and applies compound along the ;
. . , ~ .
length of thc joint S4 so that the joint S4 has the appcarance indicated in fig.2.
He then returns the trowel to his left hand, removes the taping tool 10 from hisleft thumb, and grips the taping tool 10 in his right hand with the handle 28. He 2S then p~esses the tape 46 with ~he roller 32 onto the joint 54 compound of the trywall joint using sufficient force to spread the joint compound 64, as in fig.S. He simultaneously rolls the roller 32 over the face S0 of the tape 46 in a downwart direction along the drywall joint S4. This causes the movement ~
g ~ `
"
j, "
~
resisting force applied to the tape 46 by the resilient metal plate 70 and post 50 to be overcome and the tape 46 is continually drawn through the guide posts 36-44 onto the roller 32 and applied to the joint compound 64 along the dtywall joint 54. As apparent in fig. S, the tape 46 is continua11y applied and embeddedS in the joint compound 64 and the joint compound 64 is continually spread.
The cutting blade 60 trails the roller 32 as the tape 46 is being applied and embedded in thc joint compound 64, as apparent in fig. S. When the worker reaches the bottom of the joint S4, the tape 46 is cut substantially as indicated in fig. 8. The pointed portion 72 of the cutting edge 62 is pushed through the t~pe 46 into the joint compound 64, and the support structure 12 is then manipulated,1argely by pi~oting about the rolla 32, to sever the tape 46.
Tho worker can then proceed to another joint. He suspends the taping tool 10 with the loop 30 from the thumb of his left hand. He moves the trowel containing the compound from his left hand to his right hand and applies lS the oompound along the length of thepint. He then transfer the trowel to his 1efe hand and g ips ~he taping tool 10. The taping and spreading steps are Kpeated. This is done und1 a11 pints are taped or the roll 48 of tape must be replacod The pints can thercafter be finished in a oonventional manner. The :
taping process is oxceedingly fast, permitting optimal use of a work's time ; 20 and allows wk to be performed in an effective manner by a single worker.
Refera~ is made to fig. 6 which illustrate a taping tool 122 adapted for taping corners. Components common to the taping tools 10, 122 have been labelled with the same reference numerals. The taping too1 122 has a roller 124 with a 90 degree V-shaped rolling surface 126. For purposes of this 2S specification, the term "90 degree V-shaped rolling surface" should be understood as corresponding substantially to a surface of revolution produced by tovolving two lino segmonts through 360 degrees about the rotational axis of 2 ~ ~ :
the roller, the two line segments being co-planar with the rotational axis, extending from a common point towards the rotational axis, being subtended by an angle of 90 degrees, and each oriented at 45 degrees relative to the rotational axis. This configuration is appropriate for embedding tape in a corner where S drywall panels meet at 90 degrees. The taping tool 122 also has a cutting blade 128 with a V-shaped cutting edge 130 extending forwardly over the roller 124 and bcyond the most forward surface of the roller 124. The pointed portion 132 of the V-shaped cutting edge 130 is substantially centered laterally relative to the most forward surface of the roller 124. The provision of a V-shaped ;
cutdng cdge in the second taping tool 122 accommodates right-angled panels, ;
fitdng into corner~ and avoiding any gouging of adjacent panels. It should be noted that the certain claims of this specificadon roquire a "generally V-shaped"
cutdng odge. This should not be interpretcd as requiring the precise V-shape `-characterisdc of the two taping tools 10, 122. The object of this aspect of the lS invcndon is to perrnit a forward pordon of the cutting edge to form an initial slit ccntrally in tho tapc against the drywall joint (without excessive gouging of the ~;~ pane1s ad3accnt thc joint) and penTut broader pordons of the cutdng odge to sever the tape largely at or above the surface of tho panels with a pivodng-type ~ -motdon.
It will be apprcciatcd that a pardcul~lr embodimcnt of the invcntion has been dcscdbed and that modifications may be made therein - - :
without depardng from the spirit of thc inventdon or necessarily depardng from the scope of the appended claims.
',.,':,,.~'....
.. .
.. . .
., ,.:
.:
''. ' '' - 11 - ':' ' ' :;.....
... .. .
, . . .~
Claims (21)
1. A method of applying and embedding drywall tape in joint compound along a drywall joint, comprising:
guiding one face of the tape onto a roller rotatably mounted on a movable support structure;
pressing the guided tape with the roller onto the joint compound of the drywall joint with sufficient force to spread joint compound and simultaneously rolling the roller over the one face of the tape along the drywall joint, thereby continually embedding the tape in the drywall compound along the drywall joint and spreading the pint compound contacted by the other face of the tape.
guiding one face of the tape onto a roller rotatably mounted on a movable support structure;
pressing the guided tape with the roller onto the joint compound of the drywall joint with sufficient force to spread joint compound and simultaneously rolling the roller over the one face of the tape along the drywall joint, thereby continually embedding the tape in the drywall compound along the drywall joint and spreading the pint compound contacted by the other face of the tape.
2. The method of claim 1 comprising continually applying a movement-resisting force to the tape that biases the tape against slippage relative to the roller, and overcoming the movement-resisting force and drawing the guided tape onto the roller with the said pressing of the tape onto the pintcompound and the said simultaneous rolling of the roller over the tape.
3. The method of claim 2 further comprising cutting the tape after the embedding with a cutting blade fixed to the support structure, the cutting blade being positioned on the support structure such that the cutting blade extends over the roller and trails the roller as the roller embeds the tape in the drywall compound along the drywall pint, the cutting comprises pivoting the support structure about the roller to engage the cutting blade with the tape.
4. The method of claim 1 further comprising cutting the tape after the embedding with a cutting blade fixed to the support structure, the cutting blade having a generally V-shaped cutting edge extending over the roller and positioned to trail the roller as the roller embeds the tape in the drywall compound along the drywall joint, the cutting comprising piercing a portion of the tape against the joint compound with the cutting edge thereby to form a slotin the tape and pivoting the support structure such that the cutting edge extends the slot sufficiently to sever the tape.
5. The method of claim 1 adapted for use with a drywall joint in a 90-degree corner, in which the roller has a 90-degree rolling surface.
6. Apparatus for applying drywall tape to joint compound along a drywall joint and simultaneously therewith embedding the tape in the joint compound and spreading the joint compound contacted by the tape, comprising:
a support structure having forward and rear end portions;
a handle fixed to the support structure;
a roller mounted for rotation on the forward end portion of the support structure;
guide means mounted on the support structure for guiding movement of one face of the tape onto the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint;
cutting means attached to the support structure for cutting the tape after application to the drywall compound.
a support structure having forward and rear end portions;
a handle fixed to the support structure;
a roller mounted for rotation on the forward end portion of the support structure;
guide means mounted on the support structure for guiding movement of one face of the tape onto the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint;
cutting means attached to the support structure for cutting the tape after application to the drywall compound.
7. The apparatus of claim 6 in which the cutting means comprise a cutting blade fixed to the support structure and extending forwardly over the roller, the blade having a forwardly directed cutting edge positioned such that the cutting edge trails the roller during embedding of the tape in the pint compound along the joint.
8. The apparatus of claim 7 in which the cutting edge is generally V-shaped with a substantially pointed cutting edge portion and a pair of cuttingedge portions extending laterally and rearwardly relative to the substantially pointed cutting edge portion.
9. The apparatus of claim 8 in which the pointed cutting edge portion extends forwardly beyond the most forward surface of the roller.
10. The apparatus of claim 7 in which:
the support structure has upper and lower surfaces extending transversely between the forward and rear structure end portions;
the cutting blade is positioned over the upper surface;
the handle is positioned over the upper surface and extends in a generally rearward direction relative to the support structure from a position rearwardly of the cutting blade;
the guide means define a path which is located below the upper surface and along which the tape is guided toward the roller.
the support structure has upper and lower surfaces extending transversely between the forward and rear structure end portions;
the cutting blade is positioned over the upper surface;
the handle is positioned over the upper surface and extends in a generally rearward direction relative to the support structure from a position rearwardly of the cutting blade;
the guide means define a path which is located below the upper surface and along which the tape is guided toward the roller.
11. The apparatus of claim 6 comprising means attached to the support structure for resisting movement of the tape relative to the roller, themovement-resisting means being configured to allow movement of the tape through the guide means h response to the pressing of the tape by the roller against the joint compound and the simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint.
12. The apparatus of claim 11 in which the movement-resisting means comprise means engaging both faces of the tape to apply a movement-resisting force to the tape.
13. The apparatus of claim 6 including a tape dispenser for dispensing the drywall tape from a roll, the tape dispenser comprising:
a frame comprising an upper frame portion and a lower frame portion, means attached to the upper frame portion for fastening the frame to an item of a user's clothing adjacent the user's waist; and, means attached to the lower frame portion for receiving the roll and permitting the received roll to rotate about a predetermined rotational axis to dispense the tape;
means joining the upper and lower frame portions and permitting pivoting of the lower frame portion relative to the upper frame portion at leastabout an axis substantially parallel to the rotational axis of the roll.
a frame comprising an upper frame portion and a lower frame portion, means attached to the upper frame portion for fastening the frame to an item of a user's clothing adjacent the user's waist; and, means attached to the lower frame portion for receiving the roll and permitting the received roll to rotate about a predetermined rotational axis to dispense the tape;
means joining the upper and lower frame portions and permitting pivoting of the lower frame portion relative to the upper frame portion at leastabout an axis substantially parallel to the rotational axis of the roll.
14. The apparatus of claim 13 in which:
the upper frame portion comprises a hooked portion constituting the fastening means;
the lower frame portion comprises a vertical member, a horizontally-oriented flange extending transversely from a lower end of the vertical member, a horizontal member attached to the vertical member above the horizontal flange, and a pair of vertically-oriented flanges extending from opposing ends of the horizontal member in the same direction as the horizontally-oriented flange;
a roll-receiving member dimensioned to fit into a central aperture of the roll, the roll-receiving member being located between the vertically oriented flanges and extending from the lower frame portion in the same direction as the horizontally-oriented flange; and, removable means for connecting the pair of vertically-oriented flanges to retain the roll on the roll-receiving member.
the upper frame portion comprises a hooked portion constituting the fastening means;
the lower frame portion comprises a vertical member, a horizontally-oriented flange extending transversely from a lower end of the vertical member, a horizontal member attached to the vertical member above the horizontal flange, and a pair of vertically-oriented flanges extending from opposing ends of the horizontal member in the same direction as the horizontally-oriented flange;
a roll-receiving member dimensioned to fit into a central aperture of the roll, the roll-receiving member being located between the vertically oriented flanges and extending from the lower frame portion in the same direction as the horizontally-oriented flange; and, removable means for connecting the pair of vertically-oriented flanges to retain the roll on the roll-receiving member.
15. The apparatus of claim 14 in which the roll-receiving member is hollow and cylindrical and in which the means joining the upper and lower frame portions comprise a first aperture in the lower frame portion concentric with the roll-receiving member, a second aperture in the upper frame portion registered with the first aperture, a pivot pin extending through the registeredapertures, and means for securing the pivot pin to the upper and lower frame portions such that the upper and lower frame portion pivot about the pin.
16. Apparatus for applying drywall tape to joint compound along a 90-degree drywall joint and simultaneously therewith embedding the tape in the joint compound and spreading the joint compound contacted by the tape, comprising:
a support structure having forward and rear end portions;
a handle fixed to the support structure;
a roller rotatably mounted on the forward end portion of the support structure and having a 90-degree V-shaped rolling surface;
guide means mounted on the support structure for guiding one face of the tape onto the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint;
means attached to the support structure for cutting the tape after application to the drywall compound.
a support structure having forward and rear end portions;
a handle fixed to the support structure;
a roller rotatably mounted on the forward end portion of the support structure and having a 90-degree V-shaped rolling surface;
guide means mounted on the support structure for guiding one face of the tape onto the roller in response to pressing of the tape by the roller against the joint compound and simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint;
means attached to the support structure for cutting the tape after application to the drywall compound.
17. The apparatus of claim 16 comprising means attached to the support structure for resisting movement of the tape relative to the roller, themovement-resisting means being configured to allow movement of the tape through the guide means in response to the pressing of the tape by the roller against the joint compound and the simultaneous rolling of the roller over the one face of the drywall tape along the drywall joint.
18. The apparatus of claim 17 in which the movement-resisting moans comprise means engaging both faces of the tape to apply a movement-resisting force to the tape.
19. The apparatus of claim 16 in which the cutting means comprise a cutting blade fixed to the support structure and extending forwardly over the roller, the cutting blade having a forwardly-directed cutting edge positioned onthe support structure such that the cutting edge trails the roller as the rollerapplies the tape to the drywall compound along the drywall joint.
20. The apparatus of claim 18 in which the cutting edge is generally V-shaped with a substantially pointed cutting edge portion and a pair of cutting edge portions extending laterally and rearwardly relative to the substantially pointed edge portion.
21. The apparatus of claim 20 in which:
the support structure has upper and lower surfaces extending transversely between the forward and rear structure end portions;
the cutting blade is positioned over the upper surface;
the handle is positioned over the upper surface and extends in a generally rearward direction relative to the support structure from a position rearwardly of the cutting blade;
the guide means define a path which is located below the upper surface and along which the tape is guided toward the roller.
the support structure has upper and lower surfaces extending transversely between the forward and rear structure end portions;
the cutting blade is positioned over the upper surface;
the handle is positioned over the upper surface and extends in a generally rearward direction relative to the support structure from a position rearwardly of the cutting blade;
the guide means define a path which is located below the upper surface and along which the tape is guided toward the roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2024740 CA2024740A1 (en) | 1990-09-06 | 1990-09-06 | Applying drywall tape to drywall joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2024740 CA2024740A1 (en) | 1990-09-06 | 1990-09-06 | Applying drywall tape to drywall joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2024740A1 true CA2024740A1 (en) | 1992-03-07 |
Family
ID=4145910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2024740 Abandoned CA2024740A1 (en) | 1990-09-06 | 1990-09-06 | Applying drywall tape to drywall joint |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2024740A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238326A (en) * | 2018-01-10 | 2018-07-03 | 苏州威兹泰克自动化科技有限公司 | One kind flies up to fixed structure |
-
1990
- 1990-09-06 CA CA 2024740 patent/CA2024740A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108238326A (en) * | 2018-01-10 | 2018-07-03 | 苏州威兹泰克自动化科技有限公司 | One kind flies up to fixed structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5440961A (en) | Film cutting apparatus and method | |
| EP0207615B1 (en) | Drywall tape applicator | |
| US4406730A (en) | Drywall tape dispenser | |
| US4196028A (en) | Taping tool | |
| US4623421A (en) | Tape applicator | |
| US4085703A (en) | Painting shield | |
| US5353508A (en) | Border cutter | |
| US4915769A (en) | Masking machine | |
| US7437828B1 (en) | Siding adjustable angle installation apparatus | |
| US4555298A (en) | Tape gun | |
| US10046937B2 (en) | Painters masking tape tool | |
| CA2024740A1 (en) | Applying drywall tape to drywall joint | |
| US5445704A (en) | Wallpaper applicator | |
| US3893362A (en) | Corner clamp mitre box | |
| US3176892A (en) | Tape dispenser | |
| US4523706A (en) | Automatic batten setter | |
| US6408527B1 (en) | Scoring tool | |
| US5488773A (en) | Material scoring apparatus | |
| US6045282A (en) | Multi-roller paint applicator system | |
| US6386476B1 (en) | Floor covering removal tool | |
| WO2015173254A1 (en) | Cutter for cutting laminar material into shapes | |
| WO1983002917A1 (en) | Saw jig | |
| US5775633A (en) | Wallpaper border roll holder | |
| US5660678A (en) | Hand-held edge banding machine | |
| US6131260A (en) | Self-feeding, screening installation tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |