EP0558722A1 - Applicateur mecanise a commande pneumatique de mastic et de bande de renforcement dans des parois en ma onnerie seche - Google Patents

Applicateur mecanise a commande pneumatique de mastic et de bande de renforcement dans des parois en ma onnerie seche

Info

Publication number
EP0558722A1
EP0558722A1 EP92919366A EP92919366A EP0558722A1 EP 0558722 A1 EP0558722 A1 EP 0558722A1 EP 92919366 A EP92919366 A EP 92919366A EP 92919366 A EP92919366 A EP 92919366A EP 0558722 A1 EP0558722 A1 EP 0558722A1
Authority
EP
European Patent Office
Prior art keywords
tape
mastic
applicator
wand
controlling
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.)
Withdrawn
Application number
EP92919366A
Other languages
German (de)
English (en)
Inventor
Javier Sagastegui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Axia Inc
Original Assignee
Axia Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Axia Inc filed Critical Axia Inc
Publication of EP0558722A1 publication Critical patent/EP0558722A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C7/00—Paperhanging
    • B44C7/02—Machines, apparatus, tools or accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/026—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls for applying adhesive or joint compound to joint tapes, in particular drywall tapes
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/02—Implements for finishing work on buildings for applying plasticised masses to surfaces, e.g. plastering walls
    • E04F21/06—Implements for applying plaster, insulating material, or the like
    • E04F21/08—Mechanical implements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • E04F21/1655—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers for finishing corner joints
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
    • E04F21/1657—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers for applying tape to joints, e.g. drywall taper tools

Definitions

  • This invention relates to tools for use during the installation or repair of wallboard or drywall and more particularly to pneumatically controlled, large volume, mechanized applicators for filling recesses in the wallboard or drywall with a mastic and for applying tape during the application of the mastic.
  • the inventive tool is related to tools such as that shown and described in U.S. Patent 4,105,490.
  • Finishing drywall or wallboard surfaces under these conditions is basically a multi-step process, with a drying phase between each step.
  • a bedding coat of joint compound or other mastic ills a crack or recess formed in the wallboard which may or may not be reinforced with a tape, depending upon the needs and the size of the crack or recess.
  • excess compound should be wiped down.
  • Compound or mastic shrinks as it dries, which results in slight depressions that are illed by * applying one or more topping or finishing coats of the mastic or compound. Regardless of how the tools for applying the mastic are used, it is necessary to load, unload, and clean them.
  • a conventional hand tool has a box-like open area into which the mastic or compound is first loaded and then squeezed out and onto the wall.
  • the tool must be filled and cleaned often.
  • Some of the mastic dries relatively" fast so that, if it is not cleaned promptly, small hard bits will collect in and on the tool to prevent a smooth uniformity in the deposited material.
  • Sometimes the drying mastic material may interfere with, obstruct, or perhaps even immobilize tool parts.
  • it becomes necessary and desirable to reduce the time required to clean the tool and to eliminate nooks, crannies, and other configurations within the tool which may tend to collect debris that cannot be adequately cleaned.
  • Another problem is that it has heretofore been necessary to cut tape to size, and fit it into the crack, as it is embedded in the mastic.
  • an object of the invention is to provide new and improved tools for applying both tape and mastic and other compositions to wallboards or drywalls.
  • an object is to provide a large volume tool for applying mastic which eliminates much of the need for repeatedly cleaning the mastic from the tool.
  • an object is to provide a user friendly tool which requires no special training and which requires little maintenance and no user maintenance.
  • a further object of the invention is to provide a tool which is easy to guide or steer as it is moved over the wall, with lower operator fatigue.
  • a tool which has a large reservoir containing a mastic or composition which is fed through a hand held wand to the point of application on the drywall. Tape is also fed via the wand to the wall where it is embedded in the mastic as it is applied. All of these functions are controlled from finger tip controls which operate pneumatic cylinders that control the various functions.
  • Fig. 1 illustrates the inventive tool
  • Fig. 1A is an exploded view of a control head also shown in Fig. 1;
  • Fig. 2 is an exploded view of the mastic applicator and tape applying head
  • Fig. 3 is a cross-section of a side elevation of the inventive tool showing how the parts of Fig. 2 are interconnected.
  • the inventive machine (Fig. 1) includes a wheeled cart 20 having mounted thereon an electric air compressor, a hopper or reservoir 24 for mastic, and a reel 26 for receiving and paying out a hose.
  • a wand 32 is connected between the mastic or mud hose 28/air line 30 combination and a mastic and tape applying head 42.
  • the conduit 28 supplies the mastic and air line 30 supplies pressurized air for powering air cylinders in the head.
  • Suitable finger tip controls are provided at control head 34.
  • These controls may be any suitable devices, such as plastic covered push buttons PBl, PB2, for example.
  • Push button PBl operates a tape cutter in head 42.
  • Push button PB2 controls the flow of mastic to the head 42.
  • the collar 35 attaches to control head 34 in order to provide mechanical protection for the push buttons.
  • a roll or magazine of tape 36 is mounted on the wand at a suitable location which places the center of gravity in an easy to manipulate position.
  • the tap 38 is fed through head 42 responsive to an operation of a suitable control lever 40.
  • head 42 includes a body 44 for advancing and delivering both the tape and the mastic to the wall.
  • a tape advance mechanism includes a wheel 48 which rolls along the wall to support the tool, and a creaser 50 for pressing the tape into a desired position.
  • a cutter block 52 cuts off the tape after it has been applied.
  • FIG. 2 An exploded view of the taping and mastic delivery head 42 is shown in Fig. 2. An assembled view of the same head is seen in Fig. 3.
  • a transition mount 70 is fastened to the rear edges of the cover and side plates 60-64 in order to provide a transition between the rectangular cross-section of the housing and the circular cross-section of the wand 32.
  • a bracket 72 spreads and secures the lower opposed corners of side plates 62, 64 while securing the bottom of transition mount 70.
  • the nozzle 74 for dispensing the mastic has a nozzle outlet or control valve 76 and a mastic inlet 78. Valve 76 sets in outlet 79.
  • the flow of the mastic is responsive to valve 76, which in turn is controlled by components enclosed by a cover plate 110 attached to the outside of side plate 62.
  • the components selectively rotate,the nozzle inlet valve 76 responsive to the operator's finger tip control, thus making it act as a stop-cock valve.
  • the control structure comprises a valve actuator lever 112 mounted on a bearing 114 integrally formed on a shoulder screw 116.
  • a driving gear 118 and a driven gear 120 are turned as the lever arm 112 rotates under an urging of an air or pneumatic cylinder 122 which is coupled to arm 112 via shaft 124, which is attached to an outer end of arm 112 by a bolt 126.
  • the shaft 124 passes through an arcuate slot 128 in the side plate 62 so that it is free to move with and as air cylinder 122 extends or retracts.
  • the tape control and advance mechanism begins with two rubber pinch rollers 132, 134 mounted on hub units 136, 138, respectively.
  • Hub 136 is mounted on shaft 140 while hub 138 is mounted on shaft 142.
  • These shafts and hubs are rotatably supported by suitable bearings and related equipment.
  • the tape passes between pinch rollers 132, 134 and through tape guides 148, 150 which have two confronting guide slots 152, 154 for the tape to pass through.
  • the tape issuing from slots 152, 154 passes through a slot 156 in an inlet block of metal.
  • a guillotine cutter blade 160 is mounted on a cutter blade holder 162 having a pair of upstanding ears 164, 166 which are coupled to a cutter actuator arm 168 by a pin 170.
  • the actuator arm 168 is controlled by a pneumatic or air cylinder 175 which is secured in place by a pair of brackets 172, 174.
  • An anvil 176 is positioned to shear the tape when the guillotine cutter blade 160 moves up and then down.
  • a leaf spring 178 keeps the pressure upon the anvil which insures the shearing action by a movement of the blade 160.
  • the air cylinder 175 holds the cutter blade 160 in an elevated position.
  • the air or pneumatic cylinder 175 moves actuator arm 168 which, in turn, lowers blade 160 and cuts the tape. Thereafter cylinder 175 returns the blade to its starting position.
  • the cutter assembly is completed by a cover 171 and base 173.
  • Plate 175 is a tape guide. Two rollers 177, 179 assist in guiding the tape.
  • a rack and pinion 184 (Fig. 2) is actuated by an air or pneumatic cylinder 186 responsive to control lever 40 (Fig. 1).
  • Two hubs 188, 190 are supported on a tape wheel shaft 192 which also receives a creaser arm 194 carrying a creaser wheel 196 that is especially useful when tape is applied to an inside corner of the drywall.
  • the movement of creaser arm 94 is controlled by a creaser cable 198 and return spring 200. As the creaser arm and wheel press the center of the tape while it is being applied to the wall, spring 173 provides enough give to apply a predetermined amount of pressure to the tape.
  • the worker moves wand 32 to distribute the mastic and tape over the wall in order to fill a crack, for example.
  • a suitable push button (not shown) at 34 (Fig. 1) .
  • Air cylinder 122 rotates valve 76 to cut off the flow of mastic.
  • air cylinder 175 moves the guillotine cutter blade 160 to shear the tape.
  • the tool system holds up to ten gallons of joint compound in its hopper/pump combination cart.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Coating Apparatus (AREA)

Abstract

Système automatique et motorisé servant à appliquer du mastic et des bandes de renforcement à une paroi de maçonnerie sèche pendant son installation. Dans une tête d'application (42) située à l'extrémité d'une tige (32), une pluralité de cylindres pneumatiques commandent l'application de mastic et de bande de renforcement sous l'effet de l'action exercée manuellement sur des éléments de commande (34) situés sur la tige. On peut nettoyer la totalité du dispositif en remplaçant la source de mastic par une source d'eau courante.
EP92919366A 1991-08-28 1992-08-28 Applicateur mecanise a commande pneumatique de mastic et de bande de renforcement dans des parois en ma onnerie seche Withdrawn EP0558722A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75117191A 1991-08-28 1991-08-28
US751171 1991-08-28

Publications (1)

Publication Number Publication Date
EP0558722A1 true EP0558722A1 (fr) 1993-09-08

Family

ID=25020799

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92919366A Withdrawn EP0558722A1 (fr) 1991-08-28 1992-08-28 Applicateur mecanise a commande pneumatique de mastic et de bande de renforcement dans des parois en ma onnerie seche

Country Status (6)

Country Link
EP (1) EP0558722A1 (fr)
JP (1) JPH06501757A (fr)
KR (1) KR930702169A (fr)
CA (1) CA2094919A1 (fr)
MX (1) MX9204959A (fr)
WO (1) WO1993004878A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011119532A2 (fr) * 2010-03-22 2011-09-29 Graco Minnesota Inc. Mécanisme d'actionnement de roue à rainer
CN110259052B (zh) * 2019-06-17 2021-06-15 山东金博防腐材料有限公司 一种水性环氧防腐涂料的涂刷设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260638A (en) * 1962-05-29 1966-07-12 Merrill D Muttart Taper and mastic applicator
US4127434A (en) * 1976-11-08 1978-11-28 Corban Industries, Inc. Dry wall taping machine having pneumatic assisted operation
US4090914A (en) * 1977-04-04 1978-05-23 Service Equipment Design Co., Inc. Apparatus for applying tape and adhesive to wallboard joints
US4934017A (en) * 1985-07-17 1990-06-19 Rug Doctor, Inc. Modular vacuum cleaning system
US4654924A (en) * 1985-12-31 1987-04-07 Whirlpool Corporation Microcomputer control system for a canister vacuum cleaner
US4825502A (en) * 1987-07-06 1989-05-02 Rexair, Inc. Device for visual inspection of fluid flow
US4949424A (en) * 1989-01-23 1990-08-21 William Shero Carpet cleaning system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9304878A1 *

Also Published As

Publication number Publication date
KR930702169A (ko) 1993-09-08
WO1993004878A1 (fr) 1993-03-18
MX9204959A (es) 1993-02-01
CA2094919A1 (fr) 1993-03-01
JPH06501757A (ja) 1994-02-24

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