EP2137364A2 - Handle for a spreading knife - Google Patents

Handle for a spreading knife

Info

Publication number
EP2137364A2
EP2137364A2 EP08787793A EP08787793A EP2137364A2 EP 2137364 A2 EP2137364 A2 EP 2137364A2 EP 08787793 A EP08787793 A EP 08787793A EP 08787793 A EP08787793 A EP 08787793A EP 2137364 A2 EP2137364 A2 EP 2137364A2
Authority
EP
European Patent Office
Prior art keywords
face
gripping
handle
concave
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08787793A
Other languages
German (de)
French (fr)
Other versions
EP2137364B1 (en
Inventor
Dominique Noel
Michel Giordano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Financiere Et De Realisations Ste
Original Assignee
Financiere Et De Realisations Ste
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Financiere Et De Realisations Ste filed Critical Financiere Et De Realisations Ste
Publication of EP2137364A2 publication Critical patent/EP2137364A2/en
Application granted granted Critical
Publication of EP2137364B1 publication Critical patent/EP2137364B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E04F21/16—Implements for after-treatment of plaster or the like before it has hardened or dried, e.g. smoothing-tools, profile trowels
    • E04F21/161—Trowels
    • E04F21/163—Trowels with exchangeable blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/10—Handle constructions characterised by material or shape
    • B25G1/102—Handle constructions characterised by material or shape the shape being specially adapted to facilitate handling or improve grip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • B44D3/162—Scrapers
    • B44D3/164—Scrapers comprising blades

Definitions

  • the invention relates to a knife handle to be coated.
  • Known plaster knives have a handle attached to a blade for forcefully applying plaster against a surface.
  • the blade must have sufficient flexibility to bend in order to apply the coating without scraping the face and sufficient rigidity so that the coating is pressed against the surface.
  • An improvement consists in providing a flexible blade for the coating and a rigid counterblade intended to be in contact with the flexible blade during use.
  • the handle of the coating knife described in this application has several disadvantages. Indeed, its shape does not allow a comfortable and effective handling because its handling is tiring and it is difficult to apply the coating with uniform pressure.
  • such a handle can not be used effectively with an extension handle to coat a high face or difficult to access because on the one hand the handle is not sufficiently maintained and, on the other hand, the applied pressure n ' is not uniform.
  • the present invention aims to overcome these disadvantages and to provide a knife handle to be used as well by hand with an extension handle and allowing a uniform application of the coating while limiting the efforts to be applied.
  • the invention provides a grip portion and a lever portion on the handle.
  • the subject of the invention is more specifically a coating knife handle constituted by a profile, comprising a gripping part connected by a central part to a fixing part of at least one coating blade, in which the gripping part presents a gripping zone allowing a user to pull the coating knife to spread the plaster, and a lever area allowing the user to leverage with his thumb in order to bend the blade and apply pressure to the plaster.
  • the front convex face may have a radius of curvature of between 0.2 and 0.6 cm, the concave front face may have a radius of curvature of between 0.5 and 0.8 cm, and the face concave rear lever may have a main radius of curvature of between 1.1 and 1.4 cm;
  • the convex gripping face can be connected to the concave gripping face by a bonding zone constituted by a planar gripping face;
  • the flat gripping face may form an angle of between 40 ° and 70 °, preferably between 50 ° and 60 °, typically between 53 ° and 57 °, with a plane passing through the junction between said flat gripping face and the concave gripping face, parallel to the plane of the blade;
  • the ratio between the radius of curvature of the front-grip convex face and the radius of curvature of the front-tap concave face can be between 0.4 and 0.7;
  • the ratio between the radius of curvature of the front gripping concave face and the radius of curvature of the concave rear lever face may be between 0.4 and 0.6; and or
  • the handle may further comprise a dimensionally deformable compression portion intended to be in contact with the deformable coating blade during use.
  • the invention also relates to a fixing portion of an extension handle to the previous handle, said gripping portion having a shape complementary to the grip and lever areas of the handle to be adapted to be secured to the handle.
  • the invention also relates to an extension handle provided with the previous fixing part.
  • FIG. 1 a sectional view of a knife handle to be coated according to the invention
  • Figure 2 is a sectional view of the handle of Figure 1 held by a hand
  • the so-called “upper” elements are those located towards the top of the handle of FIG. 1
  • the so-called “front” elements are those situated to the right of the handle of FIG.
  • the so-called “rear” elements are those located to the left of the handle of Figure 1
  • the so-called “lower” elements are those located towards the bottom of the handle of Figure 1.
  • a handle 100 of coating knife is constituted by a profile which has a gripping portion 10 and a fixing portion 30 of at least one elastically deformable coating blade (not shown) in a plane P1.
  • the gripping portion 10 and the fixing portion 30 are connected by a central portion 20.
  • the gripping portion 10 has an upper face 1 for receiving a portion of the palm and fingers of the hand of the user ( Figure 3) .
  • upper face 1 is preferably convex so as to match the shape of the hand during gripping.
  • the upper face 1 is connected to the central portion 20, in the front, by a convex front engaging face 2a against which the fingers of the user can bend and, at the rear, by a lower face of lever 3a against which can be pressed the thumb of the user.
  • the front gripping convex face 2a is connected to a concave gripping face 2c located at the front of the central portion 20 and the lower lever face 3a is connected to a concave rear lever face 3b located at the rear of the central portion 20.
  • These concave faces 3b and 2c are intended to form a space for receiving respectively the end of the thumb and other fingers.
  • the faces 2a and 2c form a front engagement face 2 intended to receive the end of the fingers of the user and, the faces 3a and 3b form a rear face of lever 3 for receiving the thumb of the user.
  • the connecting zone between the upper face 1 and the face 3a is wedged in the palm of the hand, between the thumb and the other fingers of the hand.
  • the handle has a gripping zone allowing the user to pull the knife to be coated in the direction of the arrow F1 to spread the coating, and a lever zone allowing the user to perform a movement of lever with its thumb in the direction of the arrow F2 to bend the blade 200 with force and apply pressure to the coating.
  • the convex gripping face 2a is connected to the concave gripping face 2c by a connecting zone 2b.
  • this connection zone 2b is constituted by a planar gripping face forming an angle ⁇ of about 55 ° with a plane P2 passing through the junction between said planar gripping face 2b and the concave gripping face 2c, parallel to the plane P1 of the blade 200.
  • This flat face allows better support and, therefore, better support of the fingers on the handle so that the traction forces of the knife during use are reduced.
  • the convex gripping face 2a has a radius of curvature R1 between 0.2 and 0.6 cm
  • the concave gripping face 2c has a radius of curvature R2 of between 0.5 and 0.8 cm
  • the concave rear lever face 3b has a main radius of curvature R3 of between 1.1 and 1.4 cm, the main radius of curvature being defined as the radius of the curvature at the rear of the handle and the opposite of the front concave face.
  • the convex gripping face 2a has a radius of curvature R1 of 0.4 cm
  • the concave gripping face 2c has a radius of curvature R2 of 0.7 cm
  • the concave rear face of lever 3b has a main radius of curvature R3 of 1.3 cm.
  • a handle according to the invention therefore allows a regular and effective application of the coating while providing an ergonomics of optimal use reducing fatigue of the user.
  • the thumb does not just have a role of maintaining the profile. It applies, thanks to the face 3a, a lever movement which is transmitted to the blade by the rest of the profile and, in particular, a dimensionally compressive portion 40 intended to be in contact with the blade to be coated.
  • the point of application of the leverage is therefore away from the hand, which allows to coat the surface without fatigue for the user and with a consistent quality all along the blade and the profile.
  • curvature reversals between the upper face and the concave front engagement 2c and rearward lever 3b surfaces form protruding gripping and levering areas that allow an extension handle with a shape-fixing portion. complementary to being secured to the handle while providing sufficient support to apply a uniform pressure to the blade.
  • An angle ⁇ between 40 ° and 70 °, of preferably between 50 ° and 60 °, typically between 53 ° and 57 ° allows effective grip of the handle in the hand and excellent locking before the fixing portion of the extension handle.
  • the ratio between the radius of curvature R2 of the concave gripping face and the main radius of curvature R3 of the concave lever rear face is between 0.4 and 0.6.
  • the flat gripping face 2b has a determined length of between 0.5 and 1.1 cm. In the embodiment of Figure 1, the length D1 is about 0.9 cm;
  • the knife handle to be coated comprises, in addition, a non-deformable compressive portion 40 intended to be in contact with the deformable coating blade during use.
  • This dimensionally stable portion 40 has a free edge intended to be in contact with the blade. As illustrated in FIG. 3, this free edge is preferably rectilinear and parallel to the edge of the convex gripping face before 2a. Thus, this rectilinear free edge allows the transmission of the lever movement, homogeneously and over the entire length of the blade and the profile;
  • the handle may have reinforcing reinforcements inside the profile
  • the profile of the handle can be made by extrusion and then cut to the width of the blade to distribute the pressure over the entire width.

Landscapes

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

Abstract

The invention relates to a handle for a spreading knife, usable by hand and also by an extension sleeve permitting an even application of the coating whilst limiting the effort of application. According to the invention, a spreader knife handle (100) comprises a grip section (10) connected by a central part (20) to a part (30) for fixing at least on spreader blade, characterised in that the holding part (10) has an upper face (1) connected to the central part (20), by a front convex grip face (2a) connected to a concave grip surface(2c) at the front of the central part (20) and by a lower face of a rear arm (3a) connected to a concave arm face (3b) at the back of the central piece (20).

Description

POIGNEE DE COUTEAU A ENDUIRE KNIFE HANDLE TO BE COATED

L'invention se rapporte à une poignée de couteau à enduire.The invention relates to a knife handle to be coated.

Les couteaux à enduire connus présentent une poignée assujettie à une lame pour appliquer avec force de l'enduit contre une surface. La lame doit présenter une souplesse suffisante pour se courber afin d'appliquer l'enduit sans le racler de la face et une rigidité suffisante pour que l'enduit soit pressée contre la surface.Known plaster knives have a handle attached to a blade for forcefully applying plaster against a surface. The blade must have sufficient flexibility to bend in order to apply the coating without scraping the face and sufficient rigidity so that the coating is pressed against the surface.

Un perfectionnement consiste à prévoir une lame souple pour l'enduit et une contre-lame rigide destinée à être en contact avec la lame souple lors de l'utilisation. Une telle solution est présentée dans la Demande de brevet PCT/FR2006/001126.An improvement consists in providing a flexible blade for the coating and a rigid counterblade intended to be in contact with the flexible blade during use. Such a solution is presented in patent application PCT / FR2006 / 001126.

Cependant, la poignée du couteau à enduire décrite dans cette Demande présente plusieurs inconvénients. En effet, sa forme ne permet pas une prise en main confortable et efficace car sa manipulation est fatigante et il est difficile d'appliquer l'enduit avec une pression uniforme.However, the handle of the coating knife described in this application has several disadvantages. Indeed, its shape does not allow a comfortable and effective handling because its handling is tiring and it is difficult to apply the coating with uniform pressure.

En outre, une telle poignée ne peut pas être utilisée efficacement avec un manche de rallonge pour enduire une face haute ou difficilement accessible car d'une part la poignée n'est pas suffisamment maintenue et, d'autre part, la pression appliquée n'est pas uniforme.In addition, such a handle can not be used effectively with an extension handle to coat a high face or difficult to access because on the one hand the handle is not sufficiently maintained and, on the other hand, the applied pressure n ' is not uniform.

La présente invention vise à pallier ces inconvénients et à fournir une poignée de couteau à enduire utilisable aussi bien à la main qu'avec un manche de rallonge et permettant une application uniforme de l'enduit tout en limitant les efforts à appliquer.The present invention aims to overcome these disadvantages and to provide a knife handle to be used as well by hand with an extension handle and allowing a uniform application of the coating while limiting the efforts to be applied.

Pour ce faire, l'invention prévoit une partie de prise et une partie de levier sur la poignée.To do this, the invention provides a grip portion and a lever portion on the handle.

L'invention a plus précisément pour objet une poignée de couteau à enduire constituée par un profilé, comprenant une partie de préhension reliée par une partie centrale à une partie de fixation d'au moins une lame à enduire, dans laquelle la partie de préhension présente une zone de prise permettant à un utilisateur de tirer le couteau à enduire pour étaler de l'enduit, et une zone de levier permettant à l'utilisateur d'effectuer un mouvement de levier avec son pouce afin de pouvoir courber la lame et d'appliquer une pression sur l'enduit.The subject of the invention is more specifically a coating knife handle constituted by a profile, comprising a gripping part connected by a central part to a fixing part of at least one coating blade, in which the gripping part presents a gripping zone allowing a user to pull the coating knife to spread the plaster, and a lever area allowing the user to leverage with his thumb in order to bend the blade and apply pressure to the plaster.

Selon des formes de réalisation particulières :According to particular embodiments:

• la partie de préhension peut présenter :• the gripping part can present:

- une face supérieure, destinée à recevoir une partie de la paume et des doigts de la main de l'utilisateur, reliée à la partie centrale, d'une part,an upper face intended to receive a part of the palm and fingers of the user's hand, connected to the central part, on the one hand,

- par une face convexe de prise avant contre laquelle les doigts de l'utilisateur peuvent se plier, permettant à un utilisateur de tirer le couteau à enduire, et reliée à une face concave de prise située à l'avant de la partie centrale et, d'autre part,- By a front convex face against which the user's fingers can bend, allowing a user to pull the knife to be coated, and connected to a concave face jack located at the front of the central portion and, on the other hand,

- par une face inférieure de levier arrière contre laquelle peut se plaquer le pouce de l'utilisateur, reliée à une face concave de levier située à l'arrière de la partie centrale pour permettre à l'utilisateur d'effectuer un mouvement de levier avec son pouce ;- by a lower side of the rear lever against which can be pressed the thumb of the user, connected to a concave lever face located at the rear of the central portion to allow the user to perform a movement of leverage with his thumb;

• la face convexe de prise avant peut présenter un rayon de courbure compris entre 0,2 et 0,6 cm, la face concave de prise avant peut présenter un rayon de courbure compris entre 0,5 et 0,8 cm, et la face concave de levier arrière peut présenter un rayon de courbure principal compris entre 1 ,1 et 1 ,4 cm ;The front convex face may have a radius of curvature of between 0.2 and 0.6 cm, the concave front face may have a radius of curvature of between 0.5 and 0.8 cm, and the face concave rear lever may have a main radius of curvature of between 1.1 and 1.4 cm;

• la face convexe de prise peut être reliée à la face concave de prise par une zone de liaison constituée par une face plane de prise ;The convex gripping face can be connected to the concave gripping face by a bonding zone constituted by a planar gripping face;

• la face plane de prise peut former un angle compris entre 40° et 70°, de préférence entre 50° et 60°, typiquement entre 53° et 57°, avec un plan passant par la jonction entre ladite face plane de prise et la face concave de prise, parallèlement au plan de la lame ;The flat gripping face may form an angle of between 40 ° and 70 °, preferably between 50 ° and 60 °, typically between 53 ° and 57 °, with a plane passing through the junction between said flat gripping face and the concave gripping face, parallel to the plane of the blade;

• le rapport entre le rayon de courbure de la face convexe de prise avant et le rayon de courbure de la face concave de prise avant peut être compris entre 0,4 et 0,7 ; • le rapport entre le rayon de courbure de la face concave de prise avant et le rayon de courbure de la face concave de levier arrière peut être compris entre 0,4 et 0,6 ; et/ouThe ratio between the radius of curvature of the front-grip convex face and the radius of curvature of the front-tap concave face can be between 0.4 and 0.7; The ratio between the radius of curvature of the front gripping concave face and the radius of curvature of the concave rear lever face may be between 0.4 and 0.6; and or

• la poignée peut comprendre, en outre, une partie indéformable de compression destinée à être en contact avec la lame à enduire déformable pendant l'utilisation.• The handle may further comprise a dimensionally deformable compression portion intended to be in contact with the deformable coating blade during use.

L'invention se rapporte également à une partie de fixation d'un manche de rallonge à la poignée précédente, ladite partie de préhension présentant une forme complémentaire des zones de prise et de levier de la poignée pour être apte à être assujettie à la poignée.The invention also relates to a fixing portion of an extension handle to the previous handle, said gripping portion having a shape complementary to the grip and lever areas of the handle to be adapted to be secured to the handle.

L'invention se rapporte également à un manche de rallonge muni de la partie de fixation précédent.The invention also relates to an extension handle provided with the previous fixing part.

D'autres caractéristiques de l'invention seront énoncées dans la description détaillée ci-après faite en référence aux figures annexées, données à titre d'exemple, et qui représentent, respectivement :Other characteristics of the invention will be set forth in the following detailed description with reference to the appended figures, given by way of example, and which represent, respectively:

- la figure 1 , une vue en coupe d'une poignée de couteau à enduire selon l'invention ; la figure 2, une vue une vue en coupe de la poignée de la figure 1 tenue par une main ; et- Figure 1, a sectional view of a knife handle to be coated according to the invention; Figure 2 is a sectional view of the handle of Figure 1 held by a hand; and

- la figure 3, une vue en perspective de la poignée de la figure 1.- Figure 3, a perspective view of the handle of Figure 1.

Par convention, dans la suite de la présente Description, les éléments dits « supérieur » sont ceux situés vers le haut de la poignée de la figure 1 , les éléments dits « avant » sont ceux situés vers la droite de la poignée de la figure 1 , les éléments dits « arrière » sont ceux situés vers la gauche de la poignée de la figure 1 et les éléments dits « inférieur » sont ceux situés vers le bas de la poignée de la figure 1.By convention, in the remainder of this description, the so-called "upper" elements are those located towards the top of the handle of FIG. 1, the so-called "front" elements are those situated to the right of the handle of FIG. , the so-called "rear" elements are those located to the left of the handle of Figure 1 and the so-called "lower" elements are those located towards the bottom of the handle of Figure 1.

En référence à la figure 1 , une poignée 100 de couteau à enduire selon la présente invention est constituée par un profilé qui présente une partie de préhension 10 et une partie de fixation 30 d'au moins une lame à enduire déformable élastiquement (non représentée) dans un plan P1. La partie de préhension 10 et la partie de fixation 30 sont reliées par une partie centrale 20. La partie de préhension 10 présente une face supérieure 1 destinée à recevoir une partie de la paume et des doigts de la main de l'utilisateur (figure 3). A cette fin face supérieure 1 est de préférence convexe de manière à épouser la forme de la main lors de la préhension.Referring to Figure 1, a handle 100 of coating knife according to the present invention is constituted by a profile which has a gripping portion 10 and a fixing portion 30 of at least one elastically deformable coating blade (not shown) in a plane P1. The gripping portion 10 and the fixing portion 30 are connected by a central portion 20. The gripping portion 10 has an upper face 1 for receiving a portion of the palm and fingers of the hand of the user (Figure 3) . For this purpose upper face 1 is preferably convex so as to match the shape of the hand during gripping.

La face supérieure 1 est reliée à la partie centrale 20, à l'avant, par une face convexe de prise avant 2a contre laquelle les doigts de l'utilisateur peuvent se plier et, à l'arrière, par une face inférieure de levier 3a contre laquelle peut se plaquer le pouce de l'utilisateur.The upper face 1 is connected to the central portion 20, in the front, by a convex front engaging face 2a against which the fingers of the user can bend and, at the rear, by a lower face of lever 3a against which can be pressed the thumb of the user.

La face convexe de prise avant 2a est reliée à une face concave de prise 2c située à l'avant de la partie centrale 20 et la face inférieure de levier 3a est reliée à une face arrière concave de levier 3b située à l'arrière de la partie centrale 20. Ces faces concaves 3b et 2c sont destinées à former un espace pour recevoir respectivement l'extrémité du pouce et des autres doigts.The front gripping convex face 2a is connected to a concave gripping face 2c located at the front of the central portion 20 and the lower lever face 3a is connected to a concave rear lever face 3b located at the rear of the central portion 20. These concave faces 3b and 2c are intended to form a space for receiving respectively the end of the thumb and other fingers.

Ainsi, les faces 2a et 2c forment une face de prise avant 2 destinée à recevoir l'extrémité des doigts de l'utilisateur et, les faces 3a et 3b forment une face arrière de levier 3 destinée à recevoir le pouce de l'utilisateur. Comme illustré en figure 2, la zone de liaison entre la face supérieure 1 et la face 3a vient se caler dans le creux de la main, entre le pouce et les autres doigts de la main. En conséquence, la poignée présente une zone de prise permettant à l'utilisateur de tirer le couteau à enduire selon la direction de la flèche F1 pour étaler l'enduit, et une zone de levier permettant à l'utilisateur d'effectuer un mouvement de levier avec son pouce dans le sens de la flèche F2 afin de courber la lame 200 avec force et d'appliquer une pression sur l'enduit.Thus, the faces 2a and 2c form a front engagement face 2 intended to receive the end of the fingers of the user and, the faces 3a and 3b form a rear face of lever 3 for receiving the thumb of the user. As illustrated in Figure 2, the connecting zone between the upper face 1 and the face 3a is wedged in the palm of the hand, between the thumb and the other fingers of the hand. As a result, the handle has a gripping zone allowing the user to pull the knife to be coated in the direction of the arrow F1 to spread the coating, and a lever zone allowing the user to perform a movement of lever with its thumb in the direction of the arrow F2 to bend the blade 200 with force and apply pressure to the coating.

La face convexe de prise 2a est reliée à la face concave de prise 2c par une zone de liaison 2b. De préférence, cette zone de liaison 2b est constituée par une face plane de prise formant un angle α d'environs 55° avec un plan P2 passant par la jonction entre ladite face plane de prise 2b et la face concave de prise 2c, parallèlement au plan P1 de la lame 200. Cette face plane permet un meilleur appui et, par conséquent, un meilleur soutien des doigts sur la poignée de sorte que les efforts de traction du couteau lors de l'utilisation sont réduits.The convex gripping face 2a is connected to the concave gripping face 2c by a connecting zone 2b. Preferably, this connection zone 2b is constituted by a planar gripping face forming an angle α of about 55 ° with a plane P2 passing through the junction between said planar gripping face 2b and the concave gripping face 2c, parallel to the plane P1 of the blade 200. This flat face allows better support and, therefore, better support of the fingers on the handle so that the traction forces of the knife during use are reduced.

De préférence, la face convexe de prise 2a présente un rayon de courbure R1 compris entre 0,2 et 0,6 cm , la face concave de prise 2c présente un rayon de courbure R2 compris entre 0,5 et 0,8 cm, et la face arrière concave de levier 3b présente un rayon de courbure principal R3 compris entre 1 ,1 et 1 ,4 cm, le rayon de courbure principal étant défini comme le rayon de la courbure située à l'arrière de la poignée et à l'opposé de la face concave avant.Preferably, the convex gripping face 2a has a radius of curvature R1 between 0.2 and 0.6 cm, the concave gripping face 2c has a radius of curvature R2 of between 0.5 and 0.8 cm, and the concave rear lever face 3b has a main radius of curvature R3 of between 1.1 and 1.4 cm, the main radius of curvature being defined as the radius of the curvature at the rear of the handle and the opposite of the front concave face.

Dans le mode de réalisation représenté, la face convexe de prise 2a présente un rayon de courbure R1 de 0,4 cm, la face concave de prise 2c présente un rayon de courbure R2 de 0,7 cm, et la face arrière concave de levier 3b présente un rayon de courbure principal R3 de 1 ,3 cm.In the embodiment shown, the convex gripping face 2a has a radius of curvature R1 of 0.4 cm, the concave gripping face 2c has a radius of curvature R2 of 0.7 cm, and the concave rear face of lever 3b has a main radius of curvature R3 of 1.3 cm.

Dans ces plages de valeurs, les efforts de traction et de levier sont réduits et la pression appliquée à l'enduit est optimale. L'utilisation d'une poignée selon l'invention permet donc une application régulière et efficace de l'enduit tout en procurant une ergonomie d'utilisation optimale réduisant la fatigue de l'utilisateur. Le pouce n'a pas simplement qu'un rôle de maintien du profilé. Il applique, grâce à la face 3a, un mouvement de levier qui est transmis à la lame par le reste du profilé et, en particulier, une partie indéformable de compression 40 destinée à être en contact avec la lame à enduire. Le point d'application de la force de levier est donc éloigné de la main, ce qui permet d'enduire la surface sans fatigue pour l'utilisateur et avec une qualité homogène tout le long de la lame et du profilé.In these ranges of values, the efforts of traction and lever are reduced and the pressure applied to the coating is optimal. The use of a handle according to the invention therefore allows a regular and effective application of the coating while providing an ergonomics of optimal use reducing fatigue of the user. The thumb does not just have a role of maintaining the profile. It applies, thanks to the face 3a, a lever movement which is transmitted to the blade by the rest of the profile and, in particular, a dimensionally compressive portion 40 intended to be in contact with the blade to be coated. The point of application of the leverage is therefore away from the hand, which allows to coat the surface without fatigue for the user and with a consistent quality all along the blade and the profile.

Par ailleurs, les inversions de courbure entre la face supérieure et les faces concaves avant de prise 2c et arrière de levier 3b forment des zones de prise et de levier en saillie qui permettent à un manche de rallonge muni d'un partie de fixation de forme complémentaire d'être assujettie à la poignée tout en fournissant un maintien suffisant pour appliquer une pression homogène à la lame. Un angle α compris entre 40° et 70°, de préférence entre 50° et 60°, typiquement entre 53° et 57° permet une prise efficace de la poignée dans la main et un excellent blocage avant de la partie de fixation du manche de rallonge.Furthermore, the curvature reversals between the upper face and the concave front engagement 2c and rearward lever 3b surfaces form protruding gripping and levering areas that allow an extension handle with a shape-fixing portion. complementary to being secured to the handle while providing sufficient support to apply a uniform pressure to the blade. An angle α between 40 ° and 70 °, of preferably between 50 ° and 60 °, typically between 53 ° and 57 ° allows effective grip of the handle in the hand and excellent locking before the fixing portion of the extension handle.

Les meilleurs résultats sont obtenus pour un rapport entre le rayon de courbure R1 de la face convexe de prise et le rayon de courbure R2 de la face concave de prise est compris entre 0,4 et 0,7.The best results are obtained for a ratio between the radius of curvature R 1 of the convex gripping face and the radius of curvature R2 of the concave gripping face is between 0.4 and 0.7.

De manière préférentielle, le rapport entre le rayon de courbure R2 de la face concave de prise et le rayon de courbure principal R3 de la face arrière concave de levier est compris entre 0,4 et 0,6.Preferably, the ratio between the radius of curvature R2 of the concave gripping face and the main radius of curvature R3 of the concave lever rear face is between 0.4 and 0.6.

Selon d'autres modes de réalisation de l'invention :According to other embodiments of the invention:

• la face plane de prise 2b présente une longueur déterminée comprise entre 0,5 et 1,1 cm. Dans le mode de réalisation de la figure 1 , la longueur D1 est d'environ 0,9 cm ;The flat gripping face 2b has a determined length of between 0.5 and 1.1 cm. In the embodiment of Figure 1, the length D1 is about 0.9 cm;

• la poignée de couteau à enduire comprend, en outre, une partie indéformable de compression 40 destinée à être en contact avec la lame à enduire déformable pendant l'utilisation. Cette partie indéformable 40 présente un bord libre destiné à être en contact avec la lame. Comme illustré en figure 3, ce bord libre est, de préférence, rectiligne et parallèle au bord de la face convexe de prise avant 2a. Ainsi, ce bord libre rectiligne permet la transmission du mouvement de levier, de manière homogène et sur toute la longueur de la lame et du profilé ;The knife handle to be coated comprises, in addition, a non-deformable compressive portion 40 intended to be in contact with the deformable coating blade during use. This dimensionally stable portion 40 has a free edge intended to be in contact with the blade. As illustrated in FIG. 3, this free edge is preferably rectilinear and parallel to the edge of the convex gripping face before 2a. Thus, this rectilinear free edge allows the transmission of the lever movement, homogeneously and over the entire length of the blade and the profile;

• la poignée peut présenter des renforts de rigidification à l'intérieur du profilé ;The handle may have reinforcing reinforcements inside the profile;

• le profilé de la poignée peut être fabriqué par extrusion puis découpé à la largeur de la lame pour répartir la pression sur toute cette largeur. • The profile of the handle can be made by extrusion and then cut to the width of the blade to distribute the pressure over the entire width.

Claims

REVENDICATIONS 1. Poignée (100) de couteau à enduire, constituée par un profilé comprenant une partie de préhension (10) reliée par une partie centrale (20) à une partie de fixation (30) d'au moins une lame à enduire (200), caractérisée en ce que la partie de préhension (10) présente une zone de prise permettant à un utilisateur de tirer le couteau à enduire pour étaler de l'enduit, et une zone de levier permettant à l'utilisateur d'effectuer un mouvement de levier avec son pouce afin de pouvoir courber la lame (200) et d'appliquer une pression sur l'enduit.1. Handle (100) of coating knife, consisting of a profile comprising a gripping portion (10) connected by a central portion (20) to a fixing portion (30) of at least one coating blade (200) , characterized in that the gripping portion (10) has a gripping area allowing a user to pull the coating knife to spread plaster, and a lever area allowing the user to perform a movement of lever with his thumb to be able to bend the blade (200) and apply pressure to the coating. 2. Poignée (100) de couteau à enduire comprenant une partie de préhension (10) reliée par une partie centrale (20) à une partie de fixation (30) d'au moins une lame à enduire (200), caractérisée en ce que la partie de préhension (10) présente :2. Knife handle (100) comprising a gripping portion (10) connected by a central portion (20) to a fastening portion (30) of at least one coating blade (200), characterized in that the gripping portion (10) presents: • une face supérieure (1 ), destinée à recevoir une partie de la paume et des doigts de la main de l'utilisateur, reliée à la partie centrale (20), d'une part,An upper face (1) intended to receive a portion of the palm and fingers of the user's hand, connected to the central portion (20), on the one hand, • par une face convexe de prise avant (2a) contre laquelle les doigts de l'utilisateur peuvent se plier, permettant à un utilisateur de tirer le couteau à enduire, et reliée à une face concave de prise (2c) située à l'avant de la partie centrale (20) et, d'autre part,• by a convex front grip face (2a) against which the fingers of the user can bend, allowing a user to pull the knife to be coated, and connected to a front concave face (2c) located at the front of the central part (20) and, on the other hand, » par une face inférieure de levier arrière (3a) contre laquelle peut se plaquer le pouce de l'utilisateur, reliée à une face concave de levier (3b) située à l'arrière de la partie centrale (20) pour permettre à l'utilisateur d'effectuer un mouvement de levier avec son pouce. "With a lower face of the rear lever (3a) which can be pressed against the thumb of the user, connected to a concave face of lever (3b) at the rear of the central portion (20) to enable the user to perform a lever movement with his thumb. 3. Poignée (100) de couteau à enduire selon la revendication 2, dans laquelle la face convexe de prise avant (2a) présente un rayon de courbure (R1) compris entre 0,2 et 0,6 cm, la face concave de prise avant (2c) présente un rayon de courbure (R2) compris entre 0,5 et 0,8 cm, et la face concave de levier arrière (3b) présente un rayon de courbure principal (R3) compris entre 1 ,1 et 1 ,4 cm. 3. Knife handle (100) of plaster according to claim 2, wherein the convex front engaging face (2a) has a radius of curvature (R1) of between 0.2 and 0.6 cm, the concave gripping face before (2c) has a radius of curvature (R2) of between 0.5 and 0.8 cm, and the concave rear lever face (3b) has a main radius of curvature (R3) of between 1.1 and 1, 4 cm. 4. Poignée de couteau à enduire selon la revendication 2 ou 3, dans laquelle la face convexe de prise (2a) est reliée à la face concave de prise (2c) par une zone de liaison (2b) constituée par une face plane de prise.4. Knife coating handle according to claim 2 or 3, wherein the convex gripping face (2a) is connected to the concave gripping face (2c) by a connecting zone (2b) consisting of a flat plane face . 5. Poignée de couteau à enduire selon la revendication 4, dans laquelle la face plane de prise forme un angle (α) compris entre 40° et 70°, de préférence entre 50° et 60°, typiquement entre 53° et 57°, avec un plan (P2) passant par la jonction entre ladite face plane de prise (2b) et la face concave de prise (2c), parallèlement au plan (P1 ) de la lame.5. Knife coating handle according to claim 4, wherein the planar gripping face forms an angle (α) between 40 ° and 70 °, preferably between 50 ° and 60 °, typically between 53 ° and 57 °, with a plane (P2) passing through the junction between said planar gripping face (2b) and the concave gripping face (2c), parallel to the plane (P1) of the blade. 6. Poignée de couteau à enduire selon l'une quelconque des revendications 2 à 5, dans laquelle le rapport entre le rayon de courbure (R1 ) de la face convexe de prise avant (2a) et le rayon de courbure (R2) de la face concave de prise avant (2c) est compris entre 0,4 et 0,7.A coating knife handle according to any one of claims 2 to 5, wherein the ratio of the radius of curvature (R1) of the front grip convex face (2a) to the radius of curvature (R2) of the front concave face (2c) is between 0.4 and 0.7. 7. Poignée de couteau à enduire selon l'une quelconque des revendications 2 à 6, dans laquelle le rapport entre le rayon de courbure (R2) de la face concave de prise avant (2c) et le rayon de courbure (R3) de la face concave de levier arrière (3b) est compris entre 0,4 et 0,6.A coating knife handle according to any one of claims 2 to 6, wherein the ratio between the radius of curvature (R2) of the front gripping concave face (2c) and the radius of curvature (R3) of the concave rear lever (3b) is between 0.4 and 0.6. 8. Poignée de couteau à enduire selon l'une quelconque des revendications 2 à 7, comprenant, en outre, une partie indéformable de compression (40) destinée à être en contact avec la lame à enduire déformable pendant l'utilisation.A coating knife handle according to any one of claims 2 to 7, further comprising a compressive deformable portion (40) for contacting the deformable coating blade during use. 9. Partie de fixation d'un manche de rallonge à une poignée selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle présente une forme complémentaire des zones de prise et de levier de la poignée pour être apte à être assujettie à la poignée.9. attachment portion of an extension handle to a handle according to any one of the preceding claims, characterized in that it has a shape complementary to the gripping zones and lever of the handle to be adapted to be subject to the handle. 10. Manche de rallonge muni de la partie de fixation selon la revendication précédente. 10. Extension handle provided with the fixing portion according to the preceding claim.
EP08787793.2A 2007-03-14 2008-03-14 Handle for a spreading knife Active EP2137364B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0701828A FR2913705B1 (en) 2007-03-14 2007-03-14 KNIFE HANDLE TO BE COATED.
PCT/FR2008/000336 WO2008142221A2 (en) 2007-03-14 2008-03-14 Handle for a spreading knife

Publications (2)

Publication Number Publication Date
EP2137364A2 true EP2137364A2 (en) 2009-12-30
EP2137364B1 EP2137364B1 (en) 2014-09-03

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ID=38582148

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EP08787793.2A Active EP2137364B1 (en) 2007-03-14 2008-03-14 Handle for a spreading knife

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EP (1) EP2137364B1 (en)
ES (1) ES2525333T3 (en)
FR (1) FR2913705B1 (en)
WO (1) WO2008142221A2 (en)

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FR3101800A1 (en) 2019-10-14 2021-04-16 Établissements Pierre Gréhal Et Cie Sa Coating knife handle and coating knife fitted with such a handle
FR3101903A1 (en) 2019-10-14 2021-04-16 Établissements Pierre Gréhal Et Cie Sa Adjustable coating knife handle and coating knife fitted with such a handle
WO2021074215A1 (en) * 2019-10-14 2021-04-22 Établissements Pierre Gréhal Et Cie Sa Adjustable taping knife handle, and taping knife provided with such a handle

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DE202016003180U1 (en) 2016-05-20 2016-06-27 Storch Malerwerkzeuge & Profigeräte GmbH Skim
EP3263800A1 (en) 2016-05-20 2018-01-03 Storch Malerwerkzeuge & Profigeräte GmbH Skimming tool
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FR3101800A1 (en) 2019-10-14 2021-04-16 Établissements Pierre Gréhal Et Cie Sa Coating knife handle and coating knife fitted with such a handle
FR3101903A1 (en) 2019-10-14 2021-04-16 Établissements Pierre Gréhal Et Cie Sa Adjustable coating knife handle and coating knife fitted with such a handle
WO2021074215A1 (en) * 2019-10-14 2021-04-22 Établissements Pierre Gréhal Et Cie Sa Adjustable taping knife handle, and taping knife provided with such a handle

Also Published As

Publication number Publication date
ES2525333T3 (en) 2014-12-22
WO2008142221A2 (en) 2008-11-27
FR2913705A1 (en) 2008-09-19
WO2008142221A3 (en) 2009-01-29
FR2913705B1 (en) 2009-10-16
EP2137364B1 (en) 2014-09-03

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