EP3976902B1 - Strip applicator with adjustable coating flow and method for adjusting the coating flow of such an applicator - Google Patents

Strip applicator with adjustable coating flow and method for adjusting the coating flow of such an applicator Download PDF

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Publication number
EP3976902B1
EP3976902B1 EP19739671.6A EP19739671A EP3976902B1 EP 3976902 B1 EP3976902 B1 EP 3976902B1 EP 19739671 A EP19739671 A EP 19739671A EP 3976902 B1 EP3976902 B1 EP 3976902B1
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EP
European Patent Office
Prior art keywords
applicator
plate
chamber
coupling
tape
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Application number
EP19739671.6A
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German (de)
French (fr)
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EP3976902A1 (en
Inventor
Lionel DELESTRE
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Edma
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Pierre Grehal et Cie SA
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Publication of EP3976902A1 publication Critical patent/EP3976902A1/en
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    • 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
    • E04F21/165—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

  • the present invention relates to a tape applicator with adjustable coating flow rate and a method for adjusting the coating flow rate of such an applicator.
  • Such an applicator is intended for laying a strip of paper or similar material, in the form of a roll, between two adjacent plasterboards, in construction or renovation, and this by means of a pasty coating.
  • the coating fills the space between the two plates and the band maintains the assembly.
  • the strip is laid between two plates arranged on the same plane or at an angle. Once the coating and the strip have been positioned, the user smooths the assembly using a flat or angled spatula for the angles. The tape thus ensures a perfectly smooth joint between the plates.
  • the reservoir has, with reference to the position of use, a rear wall delimiting an inlet slot for the tape and a front wall delimiting an outlet slot for the tape.
  • An application head is generally intended to be fixed on the front wall above the exit slot, to ensure proper application of the strip, that is to say driving the strip loaded with plaster out of of the applicator and pressing the strip against the plasterboard. A finishing smoothing is then carried out by the user using a spatula.
  • the document WO2011094820 describes an application head shaped to apply a strip between two plasterboards forming an angle between them.
  • the head comprises a plate for fixing to the applicator, the plate being extended by a fixed arm supporting an angle wheel having a V-shaped profile for applying the strip at an angle.
  • This head has many drawbacks. Indeed, it is only suitable for applying tape at an angle, so that it must be dismantled to reassemble an application head suitable for applying tape flat. Two separate heads are therefore required, which is tedious and risks the loss of one of the two heads.
  • the plate is intended to be fixed inside the tank and to cooperate with an axis of an external adjustment screw provided with an eccentric, and which allows not only the fixing of the plate, but also its displacement. along the reservoir to adjust the height of the tape exit slot as shown in the document US511427 .
  • the plate and the adjustment mechanism are in direct contact with the coating, which clogs the mechanism and damages it, because it is necessary to force it to adjust the height of the slot.
  • the application head delimiting the upper edge of the slot it is necessary to regularly change the entire head, because the upper edge of the slot is subjected to very strong abrasion and a very high temperature during passages repeated from the band.
  • An object of the present invention is therefore to provide a band applicator provided with adjustment means that are easy to implement, robust and precise, that is to say not very sensitive to abrasion and heat, and inexpensive. , i.e. easily replaceable independently of the application head.
  • the document FR3007439 describes a multi-function application head which also has the advantage of not requiring disassembly between the two functions (flat strip application and corner application).
  • the application head of this document comprises a fixing plate provided with simple fixing holes intended to receive a screw inserted in the front wall of the tool.
  • An object of the present invention is therefore to provide a tape applicator provided with adjustment means that can be coupled in a reversible manner (to allow an independent change) to an application head arranged outside the reservoir to allow a simultaneous adjustment of the height of the exit slot and the position of the application head.
  • the sliding function is offset outside the tank, which makes it possible to limit the number of parts inside the tank and to only have to change these, and not the mechanism of sliding.
  • This also makes it possible to incorporate the sliding mechanism into the application head, which makes it possible to cause the application head and the adjustment parts situated inside the reservoir to slide at the same time.
  • the subject of the invention is a jointing strip applicator between two plasterboards, the applicator comprising a reel for a jointing strip on a roll and a coating reservoir in which the strip unrolls, in use, the reservoir having, with reference to the position of use, an entry slot for the band provided between a free end of a rear wall of the reservoir and a first free end of a lower wall of the reservoir, and an exit slot of the strip provided between a free end of a front wall of the tank and a second free end of the bottom wall of the tank, the tank further comprising two side walls, one of which constitutes a removable side access cover inside the tank, the outlet slot having a determined height and being provided with height adjustment means.
  • FIG. 1 An applicator provided with means for adjusting the height of the outlet slit according to the invention is illustrated in figures 1 and 2 .
  • the applicator 1 comprises a reel 2 for a jointing strip in a roll 3 (shown in dotted lines) and a coating reservoir 4 in which the strip unrolls, in use.
  • the applicator also includes a gripping handle 5 serving for its transport or its operational manipulation during the application of the strip.
  • the applicator may include a gripping strap (not shown) allowing the applicator to be gripped from below.
  • the tank 4 has, with reference to the position of use, an inlet slot 6 of the band provided between a free end 7a of a rear wall 7 of the tank and a first free end 8a of a lower wall 8 of the tank.
  • Reservoir 4 also includes an outlet slot 9 for the strip provided between a free end 10a of a front wall 10 of the reservoir and a second free end 8b of the bottom wall 8 of the reservoir.
  • the reservoir further comprising two side walls 11 and 12, one of which constitutes a removable side cover 11 allowing access to the interior of the reservoir 4.
  • the outlet slot 9 of the strip is formed between a free end 10a of a front wall 10 of the reservoir and a second free end 8b of the lower wall 8 of the reservoir.
  • the height H1 of this slot determines the quantity of plaster carried by the belt.
  • the invention proposes to mechanically couple to a fixing plate 110 outside the tank 4, a plate inside the tank 4, structurally independent of the plate, and capable of sliding relative to the slot to reduce the resulting height H2 of the slot 9 and , thus reducing the amount of coating deposited with the tape.
  • the height adjustment means according to the invention are detailed in figures 3 and 4 .
  • the adjustment means comprise an adjustment plate 16 with a height H2 of said outlet slot, the adjustment plate 16 being arranged inside the reservoir, against an inner face 10c of the wall before 10 of the tank.
  • the invention provides that the contact face 10b of the front wall 10 comprises a sliding guide 14, longitudinal and perpendicular to the outlet slot 9.
  • the sliding guide 14 is provided with an oblong orifice 15. As will be described later, the length of the oblong hole determines the sliding length of the adjustment plate and thus the resulting height H2 of the exit slot 9.
  • the adjustment means also comprise a coupling and tightening pin 17 of the plate 16 which is engaged in an orifice 16a of the plate 16 and in the oblong hole 15 of the sliding guide 14.
  • the adjustment means also comprise a fixing plate 110 fixed in sliding manner against an outer contact face 10b of the front wall 10 of the tank.
  • the plate 110 comprises at least one fixing core 111 which comprises a bearing face 111a intended to rest against the contact face 10b of the front wall 10 of the reservoir, in the fixing position.
  • the plate 110 can comprise other structures than the core 111, such as flanks 112a-112b which can have the function of supporting at least one tape application wheel.
  • the bearing face 111a of the fixing core comprises a sliding abutment 111b provided with the hole 115 arranged centrally with respect to the sliding abutment.
  • the sliding abutment 111b cooperates in sliding with the sliding guide 14.
  • the hole 115 is intended to be traversed by the coupling and clamping axis 17 for fixing the plate 110 against the front wall of the tank.
  • the fixing means also comprise tensioning/de-energizing means to cooperate with the coupling pin 17 and tightening in order to allow tightening/loosening of the fixing core 111 of the plate 110 against the front wall 10 of the reservoir.
  • the fastening means comprise a quick-release lever 116 comprising a cam 116a pivotally fixed along the axis XX and eccentric to a coupling member 117 intended to be fixed to the coupling pin and tightening.
  • a washer 118 is provided between the coupling member and the fixing core 111 to protect the latter from the friction of the cam 116a during tightening/loosening.
  • the sliding abutment 111b carried by the bearing face 111a of the fixing core 111 consists of an oblong groove intended to cooperate with the sliding guide 114 carried by the contact face 10b of the front wall 10 of the reservoir, the sliding guide 114 being an oblong rib of complementary shape, except in length, to the groove 111b.
  • the groove carried by the fixing core will have a length L3
  • the rib carried by the reservoir will have a length L2 less than the length L3.
  • the sliding abutment carried by the bearing face of the fixing core is constituted by an oblong rib intended to cooperate with the sliding guide carried by the face of contact with the front wall of the reservoir, the sliding guide being an oblong groove.
  • the groove carried by the tank will have a length L3
  • the rib carried by the fixing core will have a length L2 less than the length L3.
  • the plaster flow rate is the quantity of plaster per strip surface unit: the higher the slot, the greater the quantity of plaster under the strip and therefore the greater the plaster flow rate.
  • the means for energizing/de-energizing the coupling and clamping pin 17 are actuated to allow the plate 110 and the plate 16 to be loosened against the front wall 10 of the reservoir.
  • the lever 116 is pivoted so as to position the cam 116a at a smaller distance from the washer.
  • the clamping tension exerted on the coupling and clamping axis 17 is therefore reduced.
  • the platen 110 coupled to the adjustment plate 16 is made to slide via the coupling and tightening axis 17, until the exit slot of the strip has an operational height H2 corresponding to a set coating application rate.
  • the means for switching on/off the coupling and clamping pin 17 are then actuated to allow clamping of the plate and of the plate against the front wall of the reservoir.
  • the lever 116 is pivoted so as to position the axis of rotation X-X of the cam 116a at a greater distance from the washer, which increases the tightening tension exerted on the coupling axis and clamp 17.
  • the orifice 16a of the plate 16 is polygonal and the coupling and clamping axis 17 comprises a polygonal cylindrical portion 17a of complementary shape to the polygonal hole 16a and intended to be inserted into the polygonal hole 16a to prevent rotation of the plate around the coupling and tightening axis. This easily ensures perfect parallelism of the functional edges of the outlet slot 9 during application.
  • the plate may include a second orifice, the coupling and clamping axis comprising a head for pressing against the plate provided with a blocking pin intended to be engaged in the second orifice to prevent rotation of the plate around the coupling and tightening axis.
  • the structure of the adjustment means according to the invention also allows easier adjustment of the height H2. Indeed, the adjustment is generally made when the applicator is placed on a support, by the lower face 8. In this position, it is generally difficult to see the exit slot 9 due to the presence of a head of application.
  • the plate 110 has a distal rectilinear edge 119, that is to say at the opposite end of the outlet slot 9, which makes it possible to constitute an adjustment mark with respect to a scale 13 graduated parallel at the distal rectilinear edge 19 and which is carried by the outer contact face 10b of the front wall 10 of the reservoir.
  • This scale thus directly represents the exit slot, so that the user can view directly, above the blocking head, the measurement of the opening of the exit slot which is located below the plate and which is not visible when the user adjusts the height of the exit slot.
  • the adjustment means according to the invention therefore allow height adjustment of the slot, while being structurally independent of the adjustment plate.
  • This structure makes it possible to provide that the fixing plate bears a band application head.
  • the structure of the adjustment means and, in particular the use of an external plate makes it possible to carry means which ensure a particular application function of the band such as, in particular, an angled application, a head of strip cutting, etc.
  • the fixing plate (and possibly the rest of the application head) and the plate.
  • the latter is advantageously made of stainless metal, which is more resistant to heat and coating and tape abrasion than the plastic typically used to make applicator heads.
  • FIG. 1 An example of an application head that can be advantageously combined with the means for adjusting the height of the exit slot according to the invention is illustrated in figures 1 and 2 .
  • the plate 110 is a plate for fixing an application head 100, the fixing plate comprising a fixing core and two flanks perpendicular to the fixing core each having two orifices facing each other in pairs for receive a first axis of rotation 120 and a second axis of rotation 130 parallel to each other.
  • the first axis of rotation carries two notched rollers 121 for driving the band.
  • the application head 100 further comprises two connecting rods 131 mounted in free rotation by a first end on the second axis of rotation, between a retracted position and a position of use.
  • a second end of each connecting rod is mounted in free rotation on a third axis of rotation, on either side of a corner roller 133 itself in free rotation on the third axis of rotation.
  • the application head 100 also includes a spring 140 such as that which is illustrated in figure 5 .
  • the spring comprising two legs 141 bearing against the fixing plate, each extended by an elbow 142 connected to a locking arm 143 provided with a notch 144 for locking the connecting rods in the use position.
  • the locking arms 143 thus extend in a secant plane to a plane passing through the two legs 141, the arms being interconnected by a return arch 146 extending in a plane secant to the plane passing through the two locking arms .
  • a spring winding 145 is arranged between the free ends of the support legs 141 and the elbows 142 connecting the arms 143.
  • This winding 145 performs two functions simultaneously: an elastic return function which allows the entire part consisting of the portion of the legs connected at elbows 142, the elbows 142, the arms 143 and the arch 146 to pivot together while the portion of the legs carrying their free end remains in contact with the fixing plate 111.
  • the winding also makes it possible to accommodate the second axis of rotation 130, this which holds the spring in position and ensures pivoting of the spring around the axis of rotation 130.
  • the application head 100 comprises means for reversibly locking the connecting rods in the retracted position, independent of the spring 140.
  • These locking means here comprise at least one locking claw 151 and at least one stop 152 shaped so that at least a connecting rod is held, in the locking position, resting against the abutment by the claw.
  • the claws and/or the connecting rods are shaped to allow the connecting rods to be released by force out of the claws in order to move into the angled strip application position.
  • the invention also provides means for limiting leaks of coating at the entry slot 6 of strip 3. These means, by reducing the leaks as a function of the viscosity of the coating, allow better control of the plaster flow at outlet slot 9.
  • these means allow effective and inexpensive protection of the entrance slot of the strip against abrasion and temperature rises, and this with very easy maintenance.
  • the free end 7a of the rear wall 7 of the reservoir and the first free end 8a of the lower wall 8 of the reservoir each comprise a cylinder, respectively 7a1 and 8a1, of section D1-greater than a thickness E1 of the wall (respectively 7 and 8) on which each cylinder 7a1 and 8a1 is attached.
  • each cylinder, respectively 7a1 and 8a1 is covered by a removable protective sleeve, respectively 201 and 202, of internal section complementary to the cylinder, respectively 7a1 and 8a1, which the sleeve covers.
  • Each protective sleeve 201 and 202 has a longitudinal opening 201a-202a, delimited by two locking edges 201b-202b against the wall (respectively 7 and 8) carrying the cylinder, respectively 7a1 and 8a1, that the sleeve, respectively 201 and 202 , covers.
  • the sleeves 201-202 are thus self-locking against the wall which carries the cylinders, because the edges 201b-202b of the longitudinal openings 201a-202a are arranged at the junction between the wall and the cylinder, a junction which has a point of inflection preventing the sleeves from sliding or falling out of the cylinder.
  • These sleeves are advantageously made of metal, such as stainless steel. It thus has a resistance to abrasion and to heat which is much greater than that of the plastic generally used for the manufacture of band applicators.
  • the maintenance method for such a strip applicator comprises a first step of opening the side wall constituting the removable side cover 11 to access the interior of the tank 4 and the free ends 7a and 8a of the rear wall 7 and bottom wall 8.
  • the worn protective sleeve(s) 201-202 are removed from the free ends 7a and 8a of the rear wall 7 and/or of the lower wall 8 of the tank by sliding them along the cylinders 7a1-8a1 carried by said ends free.
  • New protective sleeves are then inserted by causing them to slide along the cylinders 7a1-8a1 carried by the free ends of the rear wall and the bottom wall of the tank. For this, the longitudinal opening of each sleeve is aligned with the wall 7 or 8 yet the cylinder on which the sleeve is slipped. The blocking edges of the longitudinal openings of the sleeves are then placed at the junction between the wall and the cylinder.
  • each cylinder 7a1-8a1 has a circular section
  • each protective sleeve 201-202 has an open C-shaped circular section. , and prevents the tape from tearing.
  • this structure of the sleeves also makes it possible to adapt the applicator to the viscosity of the coating used.
  • the protective sleeves 201-202 have a thickness such that, when inserted around the cylinders of the free end of the rear wall and the bottom wall, they are spaced by a slot height d entry such that, in use, the band can pass freely, but not the coating stored in the tank.
  • a jointing strip application kit between two plasterboards comprising a strip applicator and a plurality of protective sleeves of different thicknesses to allow adjustment in height of the entry slot according to the viscosity of the coating to be used.
  • the invention it is possible to very easily adjust and adapt the height of the strip entry and strip exit slots, depending on the viscosity of the coating, and the practice of the user. in terms of coating flow.

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  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Coating Apparatus (AREA)

Description

La présente invention concerne un applicateur de bande à débit d'enduit modulable et un procédé de réglage de débit d'enduit d'un tel applicateur.The present invention relates to a tape applicator with adjustable coating flow rate and a method for adjusting the coating flow rate of such an applicator.

Un tel applicateur est destiné à la pose d'une bande en papier ou matériau similaire, se présentant sous forme de rouleau, entre deux plaques de plâtre adjacentes, en construction ou en rénovation, et ceci par l'intermédiaire d'un enduit pâteux.Such an applicator is intended for laying a strip of paper or similar material, in the form of a roll, between two adjacent plasterboards, in construction or renovation, and this by means of a pasty coating.

Ainsi, l'enduit comble l'espace entre les deux plaques et la bande maintient l'ensemble.Thus, the coating fills the space between the two plates and the band maintains the assembly.

La pose de bande se fait entre deux plaques disposées sur un même plan ou en angle. Une fois l'enduit et la bande positionnés, l'utilisateur lisse l'ensemble à l'aide d'une spatule plate ou coudée pour les angles. La bande assure ainsi d'obtenir un joint parfaitement lisse entre les plaques.The strip is laid between two plates arranged on the same plane or at an angle. Once the coating and the strip have been positioned, the user smooths the assembly using a flat or angled spatula for the angles. The tape thus ensures a perfectly smooth joint between the plates.

On connaît déjà des applicateurs de bande, communément appelés « banjo », comprenant un réservoir d'enduit et un dévidoir d'une bande de jointement en rouleau pour effectuer de nombreux jointements, notamment sur les grands chantiers.There are already known strip applicators, commonly called "banjo", comprising a coating reservoir and a reel of a jointing tape roll to perform many joints, especially on large sites.

À cette fin, le réservoir présente, par référence à la position d'utilisation, une paroi arrière délimitant une fente d'entrée de la bande et une paroi frontale délimitant une fente de sortie de la bande.To this end, the reservoir has, with reference to the position of use, a rear wall delimiting an inlet slot for the tape and a front wall delimiting an outlet slot for the tape.

Une tête d'application est généralement destinée à être fixée sur la paroi frontale au-dessus de la fente de sortie, pour assurer une bonne application de la bande, c'est-à-dire un entraînement de la bande chargée d'enduit hors de l'applicateur et un plaquage de la bande contre les plaques de plâtre. Un lissage de finition est ensuite effectué par l'utilisateur à l'aide d'une spatule.An application head is generally intended to be fixed on the front wall above the exit slot, to ensure proper application of the strip, that is to say driving the strip loaded with plaster out of of the applicator and pressing the strip against the plasterboard. A finishing smoothing is then carried out by the user using a spatula.

Le document WO2011094820 décrit une tête d'application conformée pour appliquer une bande entre deux plaques de plâtre formant un angle entre elles. La tête comprend une platine de fixation à l'applicateur, la platine étant prolongée par un bras fixe supportant une roulette d'angle ayant un profil en V pour appliquer la bande dans un angle.The document WO2011094820 describes an application head shaped to apply a strip between two plasterboards forming an angle between them. The head comprises a plate for fixing to the applicator, the plate being extended by a fixed arm supporting an angle wheel having a V-shaped profile for applying the strip at an angle.

Cette tête présente de nombreux inconvénients. En effet, elle n'est adaptée que pour l'application de bande dans un angle, de sorte qu'il faut la démonter pour remonter une tête d'application adaptée à l'application de bande à plat. Il faut donc deux têtes distinctes, ce qui est fastidieux et risque la perte de l'une des deux têtes.This head has many drawbacks. Indeed, it is only suitable for applying tape at an angle, so that it must be dismantled to reassemble an application head suitable for applying tape flat. Two separate heads are therefore required, which is tedious and risks the loss of one of the two heads.

Par ailleurs, la platine est destinée à être fixée à l'intérieur du réservoir et à coopérer avec un axe d'une vis extérieure de réglage munie d'un excentrique, et qui permet non seulement la fixation de la platine, mais également son déplacement le long du réservoir pour régler la hauteur de la fente de sortie de la bande, comme illustrée dans le document US511427 .Furthermore, the plate is intended to be fixed inside the tank and to cooperate with an axis of an external adjustment screw provided with an eccentric, and which allows not only the fixing of the plate, but also its displacement. along the reservoir to adjust the height of the tape exit slot as shown in the document US511427 .

Cependant, la platine et le mécanisme de réglage sont directement en contact avec l'enduit, ce qui encrasse le mécanisme et l'abîme, car il faut forcer dessus pour régler la hauteur de la fente. En outre, la tête d'application délimitant le bord supérieur de la fente, il est nécessaire de changer régulièrement la totalité de la tête, car le bord supérieur de la fente est soumis à une très forte abrasion et une très forte température lors des passages répétés de la bande.However, the plate and the adjustment mechanism are in direct contact with the coating, which clogs the mechanism and damages it, because it is necessary to force it to adjust the height of the slot. In addition, the application head delimiting the upper edge of the slot, it is necessary to regularly change the entire head, because the upper edge of the slot is subjected to very strong abrasion and a very high temperature during passages repeated from the band.

Un objectif de la présente invention est donc de proposer un applicateur de bande muni de moyens de réglage faciles à mettre en oeuvre, robustes et précis, c'est-à-dire peu sensibles à l'abrasion et à la chaleur, et peu coûteux, c'est-à-dire facilement remplaçables indépendamment de la tête d'application.An object of the present invention is therefore to provide a band applicator provided with adjustment means that are easy to implement, robust and precise, that is to say not very sensitive to abrasion and heat, and inexpensive. , i.e. easily replaceable independently of the application head.

Le document FR3007439 décrit une tête d'application multifonctions qui a également l'avantage de ne pas nécessiter de démontage entre les deux fonctions (l'application de la bande à plat et l'application en coin).The document FR3007439 describes a multi-function application head which also has the advantage of not requiring disassembly between the two functions (flat strip application and corner application).

Cependant, cette tête d'application est complexe et sa structure ne permet pas de régler la hauteur de la fente de sortie de la bande.However, this application head is complex and its structure does not allow the height of the strip outlet slot to be adjusted.

En effet, la tête d'application de ce document comprend une platine de fixation munie de simples trous de fixation destinés à recevoir une vis insérée dans la paroi frontale de l'outil.Indeed, the application head of this document comprises a fixing plate provided with simple fixing holes intended to receive a screw inserted in the front wall of the tool.

Le document US 2009/094936 A1 décrit un applicateur de bande de jointement entre deux plaques de plâtre avec les caracéristiques du préambule de la revendication 1.The document US 2009/094936 A1 describes a jointing tape applicator between two plasterboards with the characteristics of the preamble of claim 1.

Un objectif de la présente l'invention est donc de proposer un applicateur de bande muni de moyens de réglage pouvant être couplés de manière réversible (pour permettre un changement indépendant) à une tête d'application agencée à l'extérieur du réservoir pour permettre un réglage simultané de la hauteur de la fente de sortie et de la position de la tête d'application.An object of the present invention is therefore to provide a tape applicator provided with adjustment means that can be coupled in a reversible manner (to allow an independent change) to an application head arranged outside the reservoir to allow a simultaneous adjustment of the height of the exit slot and the position of the application head.

Selon l'invention, la fonction de coulissement est déportée à l'extérieur du réservoir, ce qui permet de limiter le nombre de pièces à l'intérieur du réservoir et de n'avoir à changer que celles-ci, et non le mécanisme de coulissement. Cela permet aussi d'incorporer le mécanisme de coulissement à la tête d'application, ce qui permet de faire coulisser en même temps la tête d'application et les pièces de réglage situées à l'intérieur du réservoir.According to the invention, the sliding function is offset outside the tank, which makes it possible to limit the number of parts inside the tank and to only have to change these, and not the mechanism of sliding. This also makes it possible to incorporate the sliding mechanism into the application head, which makes it possible to cause the application head and the adjustment parts situated inside the reservoir to slide at the same time.

Ainsi, l'invention a pour objet un applicateur de bande de jointement entre deux plaques de plâtre, l'applicateur comprenant un dévidoir pour une bande de jointement en rouleau et un réservoir d'enduit dans lequel se déroule la bande, en utilisation, le réservoir présentant, par référence à la position d'utilisation, une fente d'entrée de la bande ménagée entre une extrémité libre d'une paroi arrière du réservoir et une première extrémité libre d'une paroi inférieure du réservoir, et une fente de sortie de la bande ménagée entre une extrémité libre d'une paroi frontale du réservoir et une deuxième extrémité libre de la paroi inférieure du réservoir, le réservoir comprenant, en outre, deux parois latérales, dont l'une constitue un capot latéral amovible d'accès à l'intérieur du réservoir, la fente de sortie ayant une hauteur déterminée et étant munie de moyen de réglage en hauteur.Thus, the subject of the invention is a jointing strip applicator between two plasterboards, the applicator comprising a reel for a jointing strip on a roll and a coating reservoir in which the strip unrolls, in use, the reservoir having, with reference to the position of use, an entry slot for the band provided between a free end of a rear wall of the reservoir and a first free end of a lower wall of the reservoir, and an exit slot of the strip provided between a free end of a front wall of the tank and a second free end of the bottom wall of the tank, the tank further comprising two side walls, one of which constitutes a removable side access cover inside the tank, the outlet slot having a determined height and being provided with height adjustment means.

Selon l'invention, les moyens de réglage comprennent :

  • une plaque de réglage en hauteur de ladite fente de sortie, ladite plaque étant agencée à l'intérieur du réservoir contre une face intérieure de la paroi frontale du réservoir,
  • une platine de fixation fixée de manière coulissante contre une face extérieure de contact de la paroi frontale du réservoir, la face de contact comportant un guide de coulissement, de longueur déterminée, muni d'un orifice oblong, la platine de fixation comportant une butée de coulissement coopérant en coulissement avec le guide de coulissement, la butée de coulissement étant de longueur supérieure à la longueur déterminée du guide de coulissement, et munie d'un trou central ;
  • un axe de couplage et de serrage de la plaque, l'axe étant engagé dans un orifice de la plaque, dans le trou oblong du guide de coulissement, et dans le trou central de la butée de coulissement
  • des moyens de mise en tension/hors tension de l'axe de couplage et de serrage pour permettre un serrage/desserrage de la platine et de la plaque contre la paroi frontale du réservoir.
According to the invention, the adjustment means comprise:
  • a plate for adjusting the height of said outlet slot, said plate being arranged inside the tank against an inner face of the front wall of the tank,
  • a fixing plate fixed in sliding manner against an outer contact face of the front wall of the tank, the contact face comprising a sliding guide, of determined length, provided with an oblong orifice, the fixing plate comprising an abutment of sliding cooperating in sliding with the sliding guide, the sliding stop being of greater length than the determined length of the sliding guide, and provided with a central hole;
  • a shaft for coupling and clamping the plate, the shaft being engaged in an orifice of the plate, in the oblong hole of the sliding guide, and in the central hole of the sliding stop
  • means for energizing/de-energizing the coupling and tightening pin to allow tightening/loosening of the plate and of the plate against the front wall of the tank.

Selon des modes particuliers de réalisation :

  • l'orifice de la plaque peut être polygonal et l'axe de couplage et de serrage comporte une portion cylindrique polygonale de forme complémentaire au trou polygonal et destinée à être insérée dans le trou polygonal pour prévenir une rotation de la plaque autour de l'axe de couplage et de serrage ;
  • la plaque peut comporter un deuxième orifice, l'axe de couplage et de serrage comportant une tête d'appui contre la plaque munie d'un pion de blocage destiné à être engagé dans le deuxième orifice pour prévenir une rotation de la paque autour de l'axe de couplage et de serrage ;
  • les moyens de fixation peuvent comprendre un levier de serrage rapide comprenant une came fixée de manière pivotante et excentrée à un organe de couplage fixé à l'axe de couplage et de serrage ;
  • la butée de coulissement portée par la face d'appui de la platine de fixation peut être constituée par une gorge oblongue coopérant en coulissement avec le guide de coulissement porté par la face de contact de la paroi frontale du réservoir, le guide de coulissement étant une nervure oblongue ;
  • la butée de coulissement portée par la face d'appui de la platine de fixation peut être constituée par une nervure oblongue coopérant en coulissement avec le guide de coulissement porté par la face de contact de la paroi frontale du réservoir, le guide de coulissement étant une gorge oblongue ;
  • la plaque peut être en métal inoxydable ;
  • la platine peut être une platine de fixation d'une tête d'application, la platine de fixation comprenant une âme de fixation et deux flancs perpendiculaires à l'âme de fixation présentant chacun deux orifices en regard deux à deux pour recevoir un premier axe de rotation et un deuxième axe de rotation parallèles entre eux, le premier axe de rotation portant deux roulettes crantées
d'entraînement de la bande, la tête d'application comprenant en outre :
  • deux bielles montées en rotation libre par une première extrémité sur le deuxième axe de rotation, entre une position escamotée et une position d'application, une seconde extrémité de chaque bielle étant montée en rotation libre sur un troisième axe de rotation, de part et d'autre d'une roulette d'angle elle-même en rotation libre sur le troisième axe de rotation
  • un ressort comprenant deux jambes d'appui contre la platine de fixation, prolongées chacune par un coude relié à un bras de blocage muni d'un cran de blocage des bielles en position d'utilisation, les bras de blocage s'étendant dans un plan sécant à un plan passant par les deux jambes, les bras étant reliés entre eux par un arceau de rappel s'étendant dans un plan sécant au plan passant par les deux bras de blocage
  • des moyens de blocage réversible des bielles en position escamotée, indépendants du ressort ;
    • les moyens de blocage peuvent comprendre au moins une griffe de blocage et au moins une butée conformée pour qu'au moins une bielle soit maintenue, en position de blocage, en appui contre la butée par la griffe ;
    • les griffes et/ou les bielles peuvent être conformées pour permettre un déblocage en force des bielles hors des griffes ; et/ou
    • l'extrémité libre de la paroi arrière du réservoir et la première extrémité libre de la paroi inférieure du réservoir peuvent comprendre un cylindre de section supérieure à une épaisseur de la paroi sur laquelle chaque cylindre est rattaché, chaque cylindre étant recouvert par un manchon de protection amovible, de section intérieure complémentaire au cylindre que le manchon recouvre, chaque manchon de protection présentant une ouverture longitudinale délimitée par deux bords de blocage contre la paroi portant le cylindre que le manchon recouvre.
According to particular embodiments:
  • the orifice of the plate may be polygonal and the coupling and tightening axis comprises a polygonal cylindrical portion of shape complementary to the polygonal hole and intended to be inserted into the polygonal hole to prevent rotation of the plate around the axis coupling and tightening;
  • the plate may include a second orifice, the coupling and tightening pin comprising a bearing head against the plate provided with a locking pin intended to be engaged in the second orifice to prevent rotation of the plate around the coupling and tightening axis;
  • the fastening means may comprise a quick-release lever comprising a cam fixed in a pivoting and eccentric manner to a coupling member fixed to the coupling and clamping axis;
  • the sliding abutment carried by the bearing face of the fixing plate may be constituted by an oblong groove cooperating in sliding with the sliding guide carried by the contact face of the front wall of the reservoir, the sliding guide being a oblong rib;
  • the sliding abutment carried by the bearing face of the fixing plate can be constituted by an oblong rib cooperating in sliding with the sliding guide carried by the contact face of the front wall of the tank, the sliding guide being a oblong throat;
  • the plate can be made of stainless metal;
  • the plate may be a plate for fixing an application head, the fixing plate comprising a fixing core and two flanks perpendicular to the fixing core each having two orifices facing each other in pairs to receive a first axis of rotation and a second axis of rotation parallel to each other, the first axis of rotation carrying two notched rollers
for driving the tape, the application head further comprising:
  • two connecting rods mounted in free rotation by a first end on the second axis of rotation, between a retracted position and an application position, a second end of each connecting rod being mounted in free rotation on a third axis of rotation, on either side the other of a corner wheel itself in free rotation on the third axis of rotation
  • a spring comprising two support legs against the fixing plate, each extended by an elbow connected to a blocking arm provided with a notch for blocking the connecting rods in the position of use, the blocking arms extending in a plane secant to a plane passing through the two legs, the arms being interconnected by a return arch extending in a plane secant to the plane passing through the two blocking arms
  • reversible locking means of the connecting rods in the retracted position, independent of the spring;
    • the locking means may comprise at least one locking claw and at least one abutment shaped so that at least one connecting rod is held, in the locking position, bearing against the abutment by the claw;
    • the claws and/or the connecting rods can be shaped to allow the connecting rods to be released by force from the claws; and or
    • the free end of the rear wall of the tank and the first free end of the bottom wall of the tank can comprise a cylinder of section greater than a thickness of the wall to which each cylinder is attached, each cylinder being covered by a protective sleeve removable, with an internal section complementary to the cylinder that the sleeve covers, each protective sleeve having a longitudinal opening delimited by two locking edges against the wall bearing the cylinder that the sleeve covers.

L'invention a également pour objet un procédé de réglage de débit d'enduit d'un applicateur de bande de jointement entre deux plaques de plâtre adjacentes, le procédé comprenant les étapes suivantes :

  1. a) fournir un applicateur de bande de jointement précédent, le réservoir de l'applicateur étant rempli de joint et la bande étant prête à l'emploi et comprend une extrémité libre dépassant de la fente de sortie de la bande ;
  2. b) actionner les moyens de mise en tension/hors tension de l'axe de couplage et de serrage pour permettre un desserrage de la platine et de la plaque contre la paroi frontale du réservoir
  3. c) faire coulisser la platine couplée à la plaque de réglage par l'intermédiaire de l'axe de couplage et de serrage, jusqu'à ce que la fente de sortie de la bande ait une hauteur opérationnelle correspondant à un débit d'application d'enduit de consigne ;
  4. d) actionner les moyens de mise en tension/hors tension de l'axe de couplage et de serrage pour permettre un serrage de la platine et de la plaque contre la paroi frontale du réservoir.
The invention also relates to a method for adjusting the flow rate of coating from a jointing strip applicator between two adjacent plasterboards, the method comprising the following steps:
  1. a) providing a previous joint tape applicator, the reservoir of the applicator being filled with joint and the tape being ready for use and comprising a free end protruding from the exit slot of the tape;
  2. b) actuating the means for energizing/de-energizing the coupling pin and tightening to allow loosening of the plate and the plate against the front wall of the tank
  3. c) sliding the platen coupled to the adjustment plate via the coupling and clamping axis, until the strip exit slot has an operational height corresponding to an application rate d coating;
  4. d) actuating the means for energizing/de-energizing the coupling and clamping axis to allow clamping of the plate and of the plate against the front wall of the tank.

D'autres caractéristiques de l'invention seront énoncées dans la description détaillée ci-après, faite en référence aux dessins annexés, qui représentent, respectivement : :

  • [Fig. 1] représente une vue schématique en perspective d'un applicateur de bande selon l'invention en position d'utilisation, c'est-à-dire en position d'application d'une bande ;
  • [Fig. 2] représente une vue schématique en perspective de l'applicateur de bande de la figure 1 dans lequel le capot d'accès à l'intérieur du réservoir est ouvert ;
  • [Fig. 3] représente une vue schématique en perspective partielle éclatée selon un premier angle de vue d'un premier mode de réalisation des moyens de réglage de la hauteur de la fente de sortie d'un applicateur selon l'invention ;
  • [Fig. 4] représente une vue schématique en perspective partielle éclatée selon un second angle de vue des moyens de réglage de la hauteur de la fente de sortie d'un applicateur selon l'invention de la figure 3 montrant la plaque de réglage en hauteur de la fente de sortie de bande ;
  • [Fig. 5] une vue schématique en perspective d'un mode de réalisation avantageux d'un ressort pour une tête d'application combinable avec des moyens de réglage en hauteur selon l'invention ;
  • [Fig. 6] représente une vue schématique en perspective d'un deuxième mode de réalisation d'un applicateur selon l'invention comprenant, en outre, un système de protection de la fente d'entrée de bande ;
  • [Fig. 7] représente une vue schématique en perspective d'un agrandissement de la figure 6 centré sur la fente d'entrée de bande, qui comprend des manchons de protection contre l'abrasion ; et
  • [Fig. 8] représente une vue schématique en perspective éclatée de la figure 7 illustrant la structure particulière des manchons de protection selon l'invention.
Other characteristics of the invention will be set out in the detailed description below, made with reference to the appended drawings, which represent, respectively:
  • [ Fig. 1 ] shows a schematic perspective view of a tape applicator according to the invention in the position of use, that is to say in the position for applying a tape;
  • [ Fig. 2 ] shows a schematic perspective view of the tape applicator of the figure 1 in which the access cover to the interior of the tank is open;
  • [ Fig. 3 ] shows a schematic exploded partial perspective view according to a first angle of view of a first embodiment of the means for adjusting the height of the outlet slot of an applicator according to the invention;
  • [ Fig. 4 ] shows a schematic exploded partial perspective view from a second angle of view of the means for adjusting the height of the outlet slot of an applicator according to the invention of the picture 3 showing the tape exit slot height adjustment plate;
  • [ Fig. 5 ] a schematic perspective view of an advantageous embodiment of a spring for an application head that can be combined with height adjustment means according to the invention;
  • [ Fig. 6 ] shows a schematic perspective view of a second embodiment of an applicator according to the invention further comprising a system for protecting the tape entry slot;
  • [ Fig. 7 ] represents a schematic perspective view of an enlargement of the figure 6 centered on the tape entry slot, which includes protective abrasion sleeves; And
  • [ Fig. 8 ] represents a schematic exploded perspective view of the figure 7 illustrating the particular structure of the protective sleeves according to the invention.

Un applicateur muni de moyens de réglage en hauteur de la fente de sortie selon l'invention est illustré aux figures 1 et 2.An applicator provided with means for adjusting the height of the outlet slit according to the invention is illustrated in figures 1 and 2 .

L'applicateur 1 comprend un dévidoir 2 pour une bande de jointement en rouleau 3 (illustré en pointillé) et un réservoir 4 d'enduit dans lequel se déroule la bande, en utilisation.The applicator 1 comprises a reel 2 for a jointing strip in a roll 3 (shown in dotted lines) and a coating reservoir 4 in which the strip unrolls, in use.

L'applicateur comprend également une poignée de préhension 5 servant à son transport ou sa manipulation opérationnelle lors de l'application de la bande.The applicator also includes a gripping handle 5 serving for its transport or its operational manipulation during the application of the strip.

Alternativement ou en combinaison, l'applicateur peut comprendre une sangle de préhension (non illustrée) permettant de saisir l'applicateur par le dessous.Alternatively or in combination, the applicator may include a gripping strap (not shown) allowing the applicator to be gripped from below.

Comme illustré en figure 2, le réservoir 4 présente, par référence à la position d'utilisation, une fente d'entrée 6 de la bande ménagée entre une extrémité libre 7a d'une paroi arrière 7 du réservoir et une première extrémité libre 8a d'une paroi inférieure 8 du réservoir.As illustrated in figure 2 , the tank 4 has, with reference to the position of use, an inlet slot 6 of the band provided between a free end 7a of a rear wall 7 of the tank and a first free end 8a of a lower wall 8 of the tank.

Le réservoir 4 comprend également une fente de sortie 9 de la bande ménagée entre une extrémité libre 10a d'une paroi frontale 10 du réservoir et une deuxième extrémité libre 8b de la paroi inférieure 8 du réservoir.Reservoir 4 also includes an outlet slot 9 for the strip provided between a free end 10a of a front wall 10 of the reservoir and a second free end 8b of the bottom wall 8 of the reservoir.

Le réservoir comprenant, en outre, deux parois latérales 11 et 12, dont l'une constitue un capot latéral amovible 11 permettant l'accès à l'intérieur du réservoir 4.The reservoir further comprising two side walls 11 and 12, one of which constitutes a removable side cover 11 allowing access to the interior of the reservoir 4.

La fente de sortie 9 de la bande est ménagée entre une extrémité libre 10a d'une paroi frontale 10 du réservoir et une deuxième extrémité libre 8b de la paroi inférieure 8 du réservoir. La hauteur H1 de cette fente détermine la quantité d'enduit entraînée par la bande.The outlet slot 9 of the strip is formed between a free end 10a of a front wall 10 of the reservoir and a second free end 8b of the lower wall 8 of the reservoir. The height H1 of this slot determines the quantity of plaster carried by the belt.

Or, il est souhaitable de pouvoir moduler cette quantité d'enduit, selon les conditions d'utilisation, la viscosité de l'enduit, etc.However, it is desirable to be able to modulate this quantity of coating, according to the conditions of use, the viscosity of the coating, etc.

L'invention propose de coupler mécaniquement à une platine de fixation 110 extérieure au réservoir 4, une plaque intérieure au réservoir 4, indépendante structurellement de la platine, et apte à coulisser relativement à la fente pour diminuer la hauteur résultante H2 de la fente 9 et, ainsi, diminuer la quantité d'enduit déposée avec la bande.The invention proposes to mechanically couple to a fixing plate 110 outside the tank 4, a plate inside the tank 4, structurally independent of the plate, and capable of sliding relative to the slot to reduce the resulting height H2 of the slot 9 and , thus reducing the amount of coating deposited with the tape.

Les moyens de réglage en hauteur selon l'invention sont détaillés aux figures 3 et 4.The height adjustment means according to the invention are detailed in figures 3 and 4 .

Ainsi, selon l'invention, les moyens de réglage comprennent une plaque de réglage 16 d'une hauteur H2 de ladite fente de sortie, la plaque de réglage 16 étant agencée à l'intérieur du réservoir, contre une face intérieure 10c de la paroi avant 10 du réservoir.Thus, according to the invention, the adjustment means comprise an adjustment plate 16 with a height H2 of said outlet slot, the adjustment plate 16 being arranged inside the reservoir, against an inner face 10c of the wall before 10 of the tank.

L'invention prévoit que la face de contact 10b de la paroi frontale 10 comprend un guide de coulissement 14, longitudinal et perpendiculaire à la fente de sortie 9. Le guide de coulissement 14 est muni d'un orifice oblong 15. Comme il sera décrit plus tard, la longueur du trou oblong détermine la longueur de coulissement de la plaque de réglage et donc la hauteur résultante H2 de la fente de sortie 9.The invention provides that the contact face 10b of the front wall 10 comprises a sliding guide 14, longitudinal and perpendicular to the outlet slot 9. The sliding guide 14 is provided with an oblong orifice 15. As will be described later, the length of the oblong hole determines the sliding length of the adjustment plate and thus the resulting height H2 of the exit slot 9.

Les moyens de réglage comprennent également un axe de couplage et de serrage 17 de la plaque 16 qui est engagé dans un orifice 16a de la plaque 16 et dans le trou oblong 15 du guide de coulissement 14.The adjustment means also comprise a coupling and tightening pin 17 of the plate 16 which is engaged in an orifice 16a of the plate 16 and in the oblong hole 15 of the sliding guide 14.

Les moyens de réglage comprennent aussi une platine de fixation 110 fixée de manière coulissante contre une face extérieure de contact 10b de la paroi frontale 10 du réservoir.The adjustment means also comprise a fixing plate 110 fixed in sliding manner against an outer contact face 10b of the front wall 10 of the tank.

La platine 110 comprend au moins une âme de fixation 111 qui comprend une face d'appui 111a destinée à être en appui contre la face de contact 10b de la paroi frontale 10 du réservoir, en position de fixation.The plate 110 comprises at least one fixing core 111 which comprises a bearing face 111a intended to rest against the contact face 10b of the front wall 10 of the reservoir, in the fixing position.

La platine 110 peut comprendre d'autres structures que l'âme 111, telles que des flancs 112a-112b qui peuvent avoir une fonction de support d'au moins une roulette d'application de la bande.The plate 110 can comprise other structures than the core 111, such as flanks 112a-112b which can have the function of supporting at least one tape application wheel.

Complémentairement au guide de coulissement 14, la face d'appui 111a de l'âme de fixation comprend une butée de coulissement 111b munie du trou 115 agencé de manière centrale par rapport à la butée de coulissement.Complementary to the sliding guide 14, the bearing face 111a of the fixing core comprises a sliding abutment 111b provided with the hole 115 arranged centrally with respect to the sliding abutment.

En utilisation, la butée de coulissement 111b coopère en coulissement avec le guide de coulissement 14.In use, the sliding abutment 111b cooperates in sliding with the sliding guide 14.

Le trou 115 est destiné être traversé par l'axe de couplage et de serrage 17 pour la fixation de la platine 110 contre la paroi frontale du réservoir.The hole 115 is intended to be traversed by the coupling and clamping axis 17 for fixing the plate 110 against the front wall of the tank.

Les moyens de fixation comprennent également des moyens de mise en tension/hors tension pour coopérer avec l'axe de couplage 17 et de serrage afin de permettre un serrage/desserrage de l'âme de fixation 111 de la platine 110 contre la paroi frontale 10 du réservoir.The fixing means also comprise tensioning/de-energizing means to cooperate with the coupling pin 17 and tightening in order to allow tightening/loosening of the fixing core 111 of the plate 110 against the front wall 10 of the reservoir.

Dans le mode de réalisation préférentiel illustré, les moyens de fixation comprennent un levier de serrage rapide 116 comprenant une came 116a fixée de manière pivotante selon l'axe XX et excentrée à un organe de couplage 117 destiné à être fixé à l'axe de couplage et de serrage. Avantageusement une rondelle 118 est prévue entre l'organe de couplage et l'âme de fixation 111 pour protéger cette dernière du frottement de la came 116a lors du serrage/desserrage.In the preferred embodiment illustrated, the fastening means comprise a quick-release lever 116 comprising a cam 116a pivotally fixed along the axis XX and eccentric to a coupling member 117 intended to be fixed to the coupling pin and tightening. Advantageously, a washer 118 is provided between the coupling member and the fixing core 111 to protect the latter from the friction of the cam 116a during tightening/loosening.

Dans le mode de réalisation illustré, la butée de coulissement 111b portée par la face d'appui 111a de l'âme de fixation 111 est constituée par une gorge oblongue destinée à coopérer avec le guide de coulissement 114 porté par la face de contact 10b de la paroi frontale 10 du réservoir, le guide de coulissement 114 étant une nervure oblongue de forme complémentaire, sauf en longueur, de la gorge 111b. Dans ce cas, la gorge portée par l'âme de fixation aura une longueur L3, et la nervure portée par le réservoir aura une longueur L2 inférieure à la longueur L3.In the illustrated embodiment, the sliding abutment 111b carried by the bearing face 111a of the fixing core 111 consists of an oblong groove intended to cooperate with the sliding guide 114 carried by the contact face 10b of the front wall 10 of the reservoir, the sliding guide 114 being an oblong rib of complementary shape, except in length, to the groove 111b. In this case, the groove carried by the fixing core will have a length L3, and the rib carried by the reservoir will have a length L2 less than the length L3.

Bien entendu, il est possible d'inverser les volumes, et que la butée de coulissement portée par la face d'appui de l'âme de fixation soit constituée par une nervure oblongue destinée à coopérer avec le guide de coulissement porté par la face de contact de la paroi frontale du réservoir, le guide de coulissement étant une gorge oblongue. Dans ce cas, la gorge portée par le réservoir aura une longueur L3, et la nervure portée par l'âme de fixation aura une longueur L2 inférieure à la longueur L3.Of course, it is possible to reverse the volumes, and for the sliding abutment carried by the bearing face of the fixing core to be constituted by an oblong rib intended to cooperate with the sliding guide carried by the face of contact with the front wall of the reservoir, the sliding guide being an oblong groove. In this case, the groove carried by the tank will have a length L3, and the rib carried by the fixing core will have a length L2 less than the length L3.

Pour régler le débit d'enduit au cours de l'application, on règle la hauteur H2 de la fente de sortie. Le débit d'enduit est la quantité d'enduit par unité de surface de bande : plus la fente est haute, plus la quantité d'enduit sous la bande est importante et donc plus le débit d'enduit est important.To adjust the flow rate of coating during application, the height H2 of the outlet slot is adjusted. The plaster flow rate is the quantity of plaster per strip surface unit: the higher the slot, the greater the quantity of plaster under the strip and therefore the greater the plaster flow rate.

Pour cela, on actionne les moyens de mise en tension/hors tension de l'axe de couplage et de serrage 17 pour permettre un desserrage de la platine 110 et de la plaque 16 contre la paroi frontale 10 du réservoir.To do this, the means for energizing/de-energizing the coupling and clamping pin 17 are actuated to allow the plate 110 and the plate 16 to be loosened against the front wall 10 of the reservoir.

Pour ce faire, on pivote le levier 116 de manière à positionner la came 116a à une distance plus faible de la rondelle. On diminue donc la tension de serrage exercée sur l'axe de couplage et de serrage 17.To do this, the lever 116 is pivoted so as to position the cam 116a at a smaller distance from the washer. The clamping tension exerted on the coupling and clamping axis 17 is therefore reduced.

Puis, on fait coulisser la platine 110 couplée à la plaque de réglage 16 par l'intermédiaire de l'axe de couplage et de serrage 17, jusqu'à ce que la fente de sortie de la bande ait une hauteur opérationnelle H2 correspondant à un débit d'application d'enduit de consigne.Then, the platen 110 coupled to the adjustment plate 16 is made to slide via the coupling and tightening axis 17, until the exit slot of the strip has an operational height H2 corresponding to a set coating application rate.

On actionne alors les moyens de mise en tension/hors tension de l'axe de couplage et de serrage 17 pour permettre un serrage de la platine et de la plaque contre la paroi frontale du réservoir. Dans le mode de réalisation illustré, on pivote le levier 116 de manière à positionner l'axe de rotation X-X de la came 116a à une distance plus grande de la rondelle, ce qui augmente la tension de serrage exercée sur l'axe de couplage et de serrage 17.The means for switching on/off the coupling and clamping pin 17 are then actuated to allow clamping of the plate and of the plate against the front wall of the reservoir. In the illustrated embodiment, the lever 116 is pivoted so as to position the axis of rotation X-X of the cam 116a at a greater distance from the washer, which increases the tightening tension exerted on the coupling axis and clamp 17.

Dans un mode de réalisation avantageux, l'orifice 16a de la plaque 16 est polygonal et l'axe de couplage et de serrage 17 comporte une portion cylindrique polygonale 17a de forme complémentaire au trou polygonal 16a et destinée à être insérée dans le trou polygonal 16a pour prévenir une rotation de la paque autour de l'axe de couplage et de serrage. On assure ainsi facilement un parallélisme parfait des bords fonctionnels de la fente de sortie 9 lors de l'application.In an advantageous embodiment, the orifice 16a of the plate 16 is polygonal and the coupling and clamping axis 17 comprises a polygonal cylindrical portion 17a of complementary shape to the polygonal hole 16a and intended to be inserted into the polygonal hole 16a to prevent rotation of the plate around the coupling and tightening axis. This easily ensures perfect parallelism of the functional edges of the outlet slot 9 during application.

Alternativement, la plaque peut comporter un deuxième orifice, l'axe de couplage et de serrage comportant une tête d'appui contre la plaque munie d'un pion de blocage destiné à être engagé dans le deuxième orifice pour prévenir une rotation de la paque autour de l'axe de couplage et de serrage.Alternatively, the plate may include a second orifice, the coupling and clamping axis comprising a head for pressing against the plate provided with a blocking pin intended to be engaged in the second orifice to prevent rotation of the plate around the coupling and tightening axis.

La structure des moyens de réglages selon l'invention permet également un réglage plus aisé de la hauteur H2. En effet, le réglage se fait généralement lorsque l'applicateur est posé sur un support, par la face inférieure 8. Dans cette position, il est généralement difficile de voir la fente de sortie 9 en raison de la présence d'une tête d'application.The structure of the adjustment means according to the invention also allows easier adjustment of the height H2. Indeed, the adjustment is generally made when the applicator is placed on a support, by the lower face 8. In this position, it is generally difficult to see the exit slot 9 due to the presence of a head of application.

L'invention prévoit que la platine 110 présente un rebord rectiligne distal 119, c'est-à-dire à l'extrémité opposée de la fente de sortie 9, qui permet de constituer un repère de réglage par rapport à une échelle 13 graduée parallèlement au bord rectiligne distal 19 et qui est portée par la face de contact extérieure 10b de la paroi frontale 10 du réservoir. Cette échelle représente ainsi directement la fente de sortie, de sorte que l'utilisateur peut visualiser directement, au-dessus de la tête de blocage, la mesure de l'ouverture de la fente de sortie qui est située en dessous de la platine et qui n'est pas visible lorsque l'utilisateur règle la hauteur de la fente de sortie.The invention provides that the plate 110 has a distal rectilinear edge 119, that is to say at the opposite end of the outlet slot 9, which makes it possible to constitute an adjustment mark with respect to a scale 13 graduated parallel at the distal rectilinear edge 19 and which is carried by the outer contact face 10b of the front wall 10 of the reservoir. This scale thus directly represents the exit slot, so that the user can view directly, above the blocking head, the measurement of the opening of the exit slot which is located below the plate and which is not visible when the user adjusts the height of the exit slot.

Cela lui évite ainsi d'avoir à retourner l'applicateur après ou pendant le réglage.This prevents him from having to turn the applicator after or during adjustment.

Les moyens de réglages selon l'invention permettent donc un réglage en hauteur de la fente, tout en étant structurellement indépendants de la plaque de réglage.The adjustment means according to the invention therefore allow height adjustment of the slot, while being structurally independent of the adjustment plate.

Ainsi, en cas d'usure de la plaque, il est possible de changer la plaque sans avoir à changer la tête d'application fixée sur la platine de fixation.Thus, in the event of wear of the plate, it is possible to change the plate without having to change the application head fixed on the fixing plate.

Cette structure permet de prévoir que la platine de fixation porte une tête d'application de la bande. Par exemple, la structure des moyens de réglage et, en particulier l'utilisation d'une platine extérieure, permet de porter des moyens qui assurent une fonction d'application particulière de la bande comme, notamment, une application en angle, une tête de découpe de la bande, etc.This structure makes it possible to provide that the fixing plate bears a band application head. For example, the structure of the adjustment means and, in particular the use of an external plate, makes it possible to carry means which ensure a particular application function of the band such as, in particular, an angled application, a head of strip cutting, etc.

En outre, cela permet d'utiliser des matériaux différents pour la platine de fixation (et éventuellement le reste de la tête d'application) et la plaque. Cette dernière est avantageusement en métal inoxydable, plus résistant à la chaleur et à l'abrasion de l'enduit et de la bande que le plastique généralement utilisé pour la fabrication des têtes d'application.In addition, this makes it possible to use different materials for the fixing plate (and possibly the rest of the application head) and the plate. The latter is advantageously made of stainless metal, which is more resistant to heat and coating and tape abrasion than the plastic typically used to make applicator heads.

Un exemple de tête d'application pouvant être avantageusement combinée aux moyens de réglage en hauteur de la fente de sortie selon l'invention est illustré en figures 1 et 2.An example of an application head that can be advantageously combined with the means for adjusting the height of the exit slot according to the invention is illustrated in figures 1 and 2 .

Dans ce cas, la platine 110 est une platine de fixation d'une tête d'application 100, la platine de fixation comprenant une âme de fixation et deux flancs perpendiculaires à l'âme de fixation présentant chacun deux orifices en regard deux à deux pour recevoir un premier axe de rotation 120 et un deuxième axe de rotation 130 parallèles entre eux.In this case, the plate 110 is a plate for fixing an application head 100, the fixing plate comprising a fixing core and two flanks perpendicular to the fixing core each having two orifices facing each other in pairs for receive a first axis of rotation 120 and a second axis of rotation 130 parallel to each other.

Le premier axe de rotation porte deux roulettes crantées 121 d'entraînement de la bande.The first axis of rotation carries two notched rollers 121 for driving the band.

La tête d'application 100 comprend en outre deux bielles 131 montées en rotation libre par une première extrémité sur le deuxième axe de rotation, entre une position escamotée et une position d'utilisation.The application head 100 further comprises two connecting rods 131 mounted in free rotation by a first end on the second axis of rotation, between a retracted position and a position of use.

Une seconde extrémité de chaque bielle est montée en rotation libre sur un troisième axe de rotation, de part et d'autre d'une roulette d'angle 133 elle-même en rotation libre sur le troisième axe de rotation.A second end of each connecting rod is mounted in free rotation on a third axis of rotation, on either side of a corner roller 133 itself in free rotation on the third axis of rotation.

La tête d'application 100 comprend également un ressort 140 tel que celui qui est illustré en figure 5.The application head 100 also includes a spring 140 such as that which is illustrated in figure 5 .

Le ressort comprenant deux jambes 141 d'appui contre la platine de fixation, prolongées chacune par un coude 142 relié à un bras de blocage 143 muni d'un cran de blocage 144 des bielles en position d'utilisation.The spring comprising two legs 141 bearing against the fixing plate, each extended by an elbow 142 connected to a locking arm 143 provided with a notch 144 for locking the connecting rods in the use position.

Les bras de blocage143 s'étendent ainsi dans un plan sécant à un plan passant par les deux jambes 141, les bras étant reliés entre eux par un arceau de rappel 146 s'étendant dans un plan sécant au plan passant par les deux bras de blocage.The locking arms 143 thus extend in a secant plane to a plane passing through the two legs 141, the arms being interconnected by a return arch 146 extending in a plane secant to the plane passing through the two locking arms .

Un enroulement de ressort 145 est agencé entre les extrémités libres des jambes d'appui 141 et les coudes 142 de liaison aux bras 143. Cet enroulement 145 assure deux fonctions simultanément : une fonction de rappel élastique qui permet à toute la partie constituée la portion des jambes reliées aux coudes 142, les coudes 142, les bras 143 et l'arceau 146 de pivoter ensemble alors que la portion des jambes portant leur extrémité libre reste en contact avec la platine de fixation 111. L'enroulement permet également de loger le deuxième axe de rotation 130, ce qui maintient le ressort en position et assure un pivotement du ressort autour de l'axe de rotation 130.A spring winding 145 is arranged between the free ends of the support legs 141 and the elbows 142 connecting the arms 143. This winding 145 performs two functions simultaneously: an elastic return function which allows the entire part consisting of the portion of the legs connected at elbows 142, the elbows 142, the arms 143 and the arch 146 to pivot together while the portion of the legs carrying their free end remains in contact with the fixing plate 111. The winding also makes it possible to accommodate the second axis of rotation 130, this which holds the spring in position and ensures pivoting of the spring around the axis of rotation 130.

Enfin, la tête d'application 100 comprend des moyens de blocage réversible des bielles en position escamotée, indépendants du ressort 140. Ces moyens de blocage comprennent ici au moins une griffe de blocage 151 et au moins une butée 152 conformée pour qu'au moins une bielle soit maintenue, en position de blocage, en appui contre la butée par la griffe. Dans ce cas, les griffes et/ou les bielles sont conformées pour permettre un déblocage en force des bielles hors des griffes pour passer en position d'application de la bande en angle.Finally, the application head 100 comprises means for reversibly locking the connecting rods in the retracted position, independent of the spring 140. These locking means here comprise at least one locking claw 151 and at least one stop 152 shaped so that at least a connecting rod is held, in the locking position, resting against the abutment by the claw. In this case, the claws and/or the connecting rods are shaped to allow the connecting rods to be released by force out of the claws in order to move into the angled strip application position.

L'invention prévoit également des moyens de limitation de fuite d'enduit au niveau de la fente d'entrée 6 de la bande 3. Ces moyens, en réduisant les fuites en fonction de la viscosité de l'enduit, permettent un meilleur contrôle du débit d'enduit au niveau de la fente de sortie 9.The invention also provides means for limiting leaks of coating at the entry slot 6 of strip 3. These means, by reducing the leaks as a function of the viscosity of the coating, allow better control of the plaster flow at outlet slot 9.

En outre, ces moyens permettent une protection efficace et peu coûteuse de la fente d'entrée de la bande contre l'abrasion et les hausses de température, et ce avec un entretien très facile.In addition, these means allow effective and inexpensive protection of the entrance slot of the strip against abrasion and temperature rises, and this with very easy maintenance.

Comme illustré en figures 6 à 8, l'extrémité libre 7a de la paroi arrière 7 du réservoir et la première extrémité libre 8a de la paroi inférieure 8 du réservoir comprennent chacune un cylindre, respectivement 7a1 et 8a1, de section D1-supérieure à une épaisseur E1 de la paroi (respectivement 7 et 8) sur laquelle chaque cylindre 7a1 et 8a1 est rattaché.As illustrated in figures 6 to 8 , the free end 7a of the rear wall 7 of the reservoir and the first free end 8a of the lower wall 8 of the reservoir each comprise a cylinder, respectively 7a1 and 8a1, of section D1-greater than a thickness E1 of the wall (respectively 7 and 8) on which each cylinder 7a1 and 8a1 is attached.

Selon l'invention, chaque cylindre, respectivement 7a1 et 8a1, est recouvert par un manchon de protection amovible, respectivement 201 et 202, de section intérieure complémentaire au cylindre, respectivement 7a1 et 8a1, que le manchon recouvre.According to the invention, each cylinder, respectively 7a1 and 8a1, is covered by a removable protective sleeve, respectively 201 and 202, of internal section complementary to the cylinder, respectively 7a1 and 8a1, which the sleeve covers.

Chaque manchon de protection 201 et 202 présente une ouverture longitudinale 201a-202a, délimitée par deux bords de blocage 201b-202b contre la paroi (respectivement 7 et 8) portant le cylindre, respectivement 7a1 et 8a1, que le manchon, respectivement 201 et 202, recouvre.Each protective sleeve 201 and 202 has a longitudinal opening 201a-202a, delimited by two locking edges 201b-202b against the wall (respectively 7 and 8) carrying the cylinder, respectively 7a1 and 8a1, that the sleeve, respectively 201 and 202 , covers.

Les manchons 201-202 sont ainsi auto bloquant contre la paroi qui porte les cylindres, car les bords 201b-202b des ouvertures longitudinales 201a-202a sont agencés à la jonction entre la paroi et le cylindre, jonction qui présente un point d'inflexion empêchant les manchons de coulisser ou de tomber hors du cylindre.The sleeves 201-202 are thus self-locking against the wall which carries the cylinders, because the edges 201b-202b of the longitudinal openings 201a-202a are arranged at the junction between the wall and the cylinder, a junction which has a point of inflection preventing the sleeves from sliding or falling out of the cylinder.

Ces manchons sont avantageusement en métal, tel que de l'acier inoxydable. II présente ainsi une résistance à l'abrasion et à la chaleur très supérieure à celle du plastique généralement utilisé pour la fabrication des applicateurs de bande.These sleeves are advantageously made of metal, such as stainless steel. It thus has a resistance to abrasion and to heat which is much greater than that of the plastic generally used for the manufacture of band applicators.

Par ailleurs, cette structure des extrémités libres des parois arrière et inférieure est très facile à réaliser par moulage.Furthermore, this structure of the free ends of the rear and lower walls is very easy to produce by molding.

Le changement des manchons, s'ils sont usés, est très facile.Changing the sleeves, if worn, is very easy.

[Le procédé de maintenance d'un tel applicateur de bande comprend une première étape d'ouverture de la paroi latérale constituant le capot latéral amovible 11 pour accéder à l'intérieur du réservoir 4 et aux extrémités libres 7a et 8a de la paroi arrière 7 et de la paroi inférieure 8.[The maintenance method for such a strip applicator comprises a first step of opening the side wall constituting the removable side cover 11 to access the interior of the tank 4 and the free ends 7a and 8a of the rear wall 7 and bottom wall 8.

Puis, on retire le ou les manchons de protection usés 201-202 des extrémités libres 7a et 8a de la paroi arrière 7 et/ou de la paroi inférieure 8 du réservoir en les faisant coulisser le long des cylindres 7a1-8a1 portés par lesdites extrémités libres.Then, the worn protective sleeve(s) 201-202 are removed from the free ends 7a and 8a of the rear wall 7 and/or of the lower wall 8 of the tank by sliding them along the cylinders 7a1-8a1 carried by said ends free.

On insère alors de nouveaux manchons de protection en les faisant coulisser le long des cylindres 7a1-8a1 portés par les extrémités libres de la paroi arrière et de la paroi inférieure du réservoir. Pour cela, on aligne l'ouverture longitudinale de chaque manchon avec la paroi 7 ou 8 pourtant le cylindre sur lequel on enfile le manchon. Les bords de blocages des ouvertures longitudinales des manchons se placent alors à la jonction entre la paroi et le cylindre.New protective sleeves are then inserted by causing them to slide along the cylinders 7a1-8a1 carried by the free ends of the rear wall and the bottom wall of the tank. For this, the longitudinal opening of each sleeve is aligned with the wall 7 or 8 yet the cylinder on which the sleeve is slipped. The blocking edges of the longitudinal openings of the sleeves are then placed at the junction between the wall and the cylinder.

Finalement, on referme la paroi latérale 11 constituant le capot latéral amovible.Finally, the side wall 11 constituting the removable side cover is closed.

De manière préférentielle, chaque cylindre 7a1-8a1 présente une section circulaire, et chaque manchon de protection 201-202 présente une section circulaire ouverte en C. Ceci permet d'assurer un contact optimal avec la bande au cours de l'application, sans arrête, et évite que la bande ne se déchire.Preferably, each cylinder 7a1-8a1 has a circular section, and each protective sleeve 201-202 has an open C-shaped circular section. , and prevents the tape from tearing.

Il est alors possible d'effectuer une application de la bande de manière très rapide, sans crainte que les bords libres des parois arrière et inférieure ne fondent, et sans risque de déchirer la bande grâce à la forme arrondie des manchons.It is then possible to apply the strip very quickly, without fear of the free edges of the rear and lower walls melting, and without risk of tearing the strip thanks to the rounded shape of the sleeves.

Outre la protection contre l'abrasion, cette structure des manchons permet, en outre, d'adapter l'applicateur à la viscosité de l'enduit utilisé.In addition to protection against abrasion, this structure of the sleeves also makes it possible to adapt the applicator to the viscosity of the coating used.

Ainsi, un utilisateur qui souhaite utiliser un enduit plus fluide que la normale va changer les manchons pour que la fente d'entrée de la bande soit moins haute, limitant ainsi les fuites d'enduit.Thus, a user who wishes to use a coating that is more fluid than normal will change the sleeves so that the strip entry slot is lower, thus limiting coating leaks.

À cette fin, les manchons de protection 201-202 présentent une épaisseur telle que, lorsqu'ils sont insérés autour des cylindres de l'extrémité libre de la paroi arrière et de la paroi inférieure, ils sont espacés d'une hauteur de fente d'entrée telle que, en utilisation, la bande peut passer librement, mais pas l'enduit stocké dans le réservoir.To this end, the protective sleeves 201-202 have a thickness such that, when inserted around the cylinders of the free end of the rear wall and the bottom wall, they are spaced by a slot height d entry such that, in use, the band can pass freely, but not the coating stored in the tank.

On pourra alors proposer un kit d'application de bande de jointement entre deux plaques de plâtre, comprenant un applicateur de bande et une pluralité de manchons de protection d'épaisseurs différentes pour permettre un réglage en hauteur de la fente d'entrée en fonction de la viscosité de l'enduit devant être utilisé.It will then be possible to propose a jointing strip application kit between two plasterboards, comprising a strip applicator and a plurality of protective sleeves of different thicknesses to allow adjustment in height of the entry slot according to the viscosity of the coating to be used.

Grâce à l'invention, il est possible de régler et d'adapter très facilement la hauteur des fentes d'entrée de bande et de sortie de bande, en fonction de la viscosité de l'enduit, et de la pratique de l'utilisateur en matière de débit d'enduit.Thanks to the invention, it is possible to very easily adjust and adapt the height of the strip entry and strip exit slots, depending on the viscosity of the coating, and the practice of the user. in terms of coating flow.

Claims (12)

  1. Applicator (1) of jointing tape for joining two sheets of plasterboard, the applicator comprising a payout device (2) for paying out a jointing tape that comes in a roll (3) and a mud chamber (4) through which the tape is paid out, in use, the chamber having, with reference to the position of use, a tape inlet slot (6) formed between a free end (7a) of a rear wall (7) of the chamber and a first free end (8a) of a lower wall (8) of the chamber, and a tape outlet slot (9) formed between a free end (10a) of a frontal wall (10) of the chamber and a second free end (8b) of the lower wall (8) of the chamber, the chamber further comprising two lateral walls (11-12), one of which constitutes a removable side cover (11) providing access to the inside of the chamber, the outlet slot (9) having a determined height (H1) and being equipped with heightwise adjustment means, the adjusting means comprising:
    - a plate (16) for adjusting the height (H2) of said outlet slot, said plate being arranged inside the chamber against an interior face (10c) of the frontal wall (10) of the chamber, characterized in that the adjusting means further comprise:
    - a mounting plate (110) fixed with the ability to slide against an exterior contact face (10b) of the frontal wall (10) of the chamber, the contact face comprising a sliding guide (14), equipped with an oblong orifice (15), the mounting plate (110) comprising a sliding end stop (111b) collaborating in sliding with the sliding guide (14) and equipped with a central hole (115);
    - a coupling and clamping spindle (17) for coupling and clamping the plate, said spindle being engaged in an orifice (16a) of the plate, in the oblong hole (15) of the sliding guide, and in the central hole (115) of the sliding end stop
    - means (116-117) for tensioning/slackening-off the coupling and clamping spindle to allow the mounting plate and the plate to be clamped against/loosened off from the frontal wall of the chamber.
  2. Applicator (1) according to Claim 1, wherein the orifice (16a) in the plate is polygonal and the coupling and clamping spindle (17) has a polygonal cylindrical portion (17a) of a shape that complements the polygonal hole and that is intended to be inserted in the polygonal hole in order to prevent the plate from rotating about the coupling and clamping spindle.
  3. Applicator (1) according to Claim 1, wherein the plate comprises a second orifice, the coupling and clamping spindle comprising a bearing head bearing against the plate equipped with an immobilization pin intended to be engaged in the second orifice in order to prevent the plate from rotating about the coupling and clamping spindle.
  4. Applicator (1) according to any one of Claims 1 to 3, wherein the fixing means (116-117-118) comprise a quick clamp lever (116) comprising a cam (116a) fixed in a pivoting and eccentric manner to a coupling member (117) fixed to the coupling and clamping spindle (17).
  5. Applicator (1) according to Claim 4, wherein the sliding end stop borne by the bearing face of the mounting plate consists of an oblong groove (111b) of determined length (L3) collaborating in sliding with the sliding guide borne by the contact face of the frontal wall of the chamber, the sliding guide being an oblong rib (14) of determined length (L2) less than the length (L3) of the oblong groove.
  6. Applicator (1) according to Claim 4, wherein the sliding end stop borne by the bearing face of the mounting plate consists of an oblong rib of determined length (L2) collaborating in sliding with the sliding guide borne by the contact face of the frontal wall of the chamber, the sliding guide being an oblong groove of determined length (L3) greater than the length (L2) of the oblong rib.
  7. Applicator (1) according to any one of Claims 1 to 6, wherein the plate is made of a rustproof metal.
  8. Applicator (1) according to any one of Claims 1 to 7, wherein the mounting plate is a mounting plate for fixing an application head (100), the mounting plate (110) comprising a fixing web (111) and two flanks (112a-112b) perpendicular to the fixing web and each having two orifices facing each other in pairs to receive a first rotation spindle (120) and a second rotational spindle (130) which are mutually parallel, the first rotation spindle bearing two toothed wheels (121) for driving the tape, the application head (100) further comprising:
    - two link rods (131) mounted via a first end to rotate freely on the second rotation spindle, between a retracted position and an application position, a second end of each link rod being mounted to rotate freely on a third rotation spindle (132), on either side of a corner wheel (133), itself free to rotate on the third rotation spindle
    - a spring (140) having two legs (141) bearing against the mounting plate, each one being extended by a bend (142) connected to an immobilizing arm (143) equipped with a catch (144) for immobilizing the link rods (131) in the position of use, the immobilizing arms extending in a plane secant to a plane passing through the two legs, the arms being joined together by a return arch (146) extending in a plane secant to the plane passing through the two immobilizing arms
    - reversible immobilization means (151-152), independent of the spring, for immobilizing the link rods in the retracted position.
  9. Applicator (1) according to Claim 8, wherein the immobilization means comprise at least one immobilization claw (151) and at least one end stop (152) configured so that, in the immobilization position, at least one link rod is kept pressed against the end stop by the claw.
  10. Applicator (1) according to Claim 9, wherein the claws and/or the link rods are configured to allow the link rods to be forcibly unlocked from the claws.
  11. Applicator (1) according to any one of Claims 1 to 10, wherein the free end (7a) of the rear wall (7) of the chamber and the first free end (8a) of the lower wall (8) of the chamber comprise a cylinder (7a1-8a1) of cross section (D1) greater than a thickness (E1) of the wall to which each cylinder is attached, and wherein each cylinder is covered with a removable protective sleeve (201-202) of an internal cross section that complements the cylinder that the sleeve covers, each protective sleeve having a longitudinal opening (201a-202a) delimited by two immobilization edges (201b-202b) for immobilization against the wall bearing the cylinder that the sleeve covers.
  12. Method for adjusting the mud flow rate of an applicator of jointing tape joining two adjacent sheets of plasterboard, characterized in that it comprises the following steps:
    a) providing a jointing-tape applicator according to any one of Claims 1 to 11, the chamber of the applicator being filled with jointing compound and the tape being ready for use and comprising a free end protruding from the tape outlet slot;
    b) operating the means for tensioning/slackening-off the coupling and clamping spindle in order to loosen off the mounting plate and the plate from against the frontal wall of the chamber
    c) sliding the mounting plate coupled to the adjusting plate using the coupling and clamping spindle until the outlet slot for the tape has an operational height corresponding to a datum mud-application flow output;
    d) operating the means for tensioning/slackening-off the coupling and clamping spindle in order to clamp the mounting plate and the plate against the frontal wall of the chamber.
EP19739671.6A 2019-05-31 2019-05-31 Strip applicator with adjustable coating flow and method for adjusting the coating flow of such an applicator Active EP3976902B1 (en)

Applications Claiming Priority (1)

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PCT/FR2019/000087 WO2020240099A1 (en) 2019-05-31 2019-05-31 Strip applicator with adjustable coating flow and method for adjusting the coating flow of such an applicator

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EP3976902A1 EP3976902A1 (en) 2022-04-06
EP3976902B1 true EP3976902B1 (en) 2023-07-05

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AU (1) AU2019447729A1 (en)
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CN107732824B (en) * 2017-11-15 2023-10-13 浙江苏耐电力科技有限公司 Bus adapter
USD1026588S1 (en) * 2021-09-29 2024-05-14 Phaanix Pty Ltd Plaster taping device with attachment
USD1026589S1 (en) * 2021-09-29 2024-05-14 Phaanix Pty Ltd Plaster taping device

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US511427A (en) 1893-12-26 Gar-coupling
US2763237A (en) * 1952-08-18 1956-09-18 Harris Robert Leon Adhesive applicator for tapes
US5114527A (en) * 1990-07-17 1992-05-19 Djs&T Limited Partnership Drywall tape applying tool
US20090094936A1 (en) * 2007-10-15 2009-04-16 Bmb Products, Llc Drywall tape dispensing mudbox
CA2792006C (en) 2010-02-04 2017-01-24 Daniel Luke Owens Apparatus for a plaster taping device
FR3007439B1 (en) 2013-06-20 2015-10-16 Rokntools JOINT TOOL BETWEEN PLASTER PLATES
US10533326B2 (en) * 2017-10-24 2020-01-14 Phaanix Pty Ltd Plaster taping apparatus and attachments
US10458129B1 (en) * 2018-05-30 2019-10-29 The Advance Equipment Manufacturing Company Drywall banjo tools for applying joint type
EP3980609A1 (en) * 2019-06-04 2022-04-13 Etablissements Pierre Gréhal et Cie SA Application head for a tape applicator, tape applicator provided with such a head

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DK3976902T3 (en) 2023-10-16
US20220228376A1 (en) 2022-07-21
PL3976902T3 (en) 2024-03-18
AU2019447729A1 (en) 2021-12-02
EP3976902A1 (en) 2022-04-06
WO2020240099A1 (en) 2020-12-03
ES2958766T3 (en) 2024-02-14

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