EP2493661B1 - Device for holding a hand tool and kit including such a device - Google Patents

Description

The invention relates to a device for holding a hand tool, in particular a tool suitable for finishing a coated surface, and to a kit comprising such a device.

By hand tool adapted to the finish of a coated surface, means here tools, or objects, the implementation and use are performed manually by an operator in the context of the completion of the finishing work of a coated surface, usually sanding operations. The coated surface corresponds to a surface, for example a wall, on which it has been projected, by known techniques, a coating intended to form an underlayer before the introduction of a decorative coating, for example a paint or wallpaper.

Once the coating is dry, it is necessary to sand the surface in order to obtain the smoothest possible surface finish. To carry out this sanding, in addition to a generally sheet-like abrasive material, a sanding wedge, either flat or triangular, is used depending on the configuration of the surface to be sanded. This wedge makes it possible to maintain and use the abrasive material.

Other tools can also be used, for example dust extraction means generated during sanding and / or lighting means to control the effectiveness of sanding by highlighting, by shadows and shadows. light, any irregularities of the sanded surface.

Due to the dimensions of the surfaces to be sanded, in particular the height of the walls, and any difficulties in easily accessing the various points of these surfaces, these finishing works often require the use of different tools and / or the use of means. of elevation, for example stools or scaffolding.

US-A-2007 141,968 , on which the preamble of claim 1 is based, discloses a sanding device comprising a gripping member, a pivot member and a bearing surface. The support surface is provided several reliefs delimiting between them channels for ensuring the evacuation of dust towards a central orifice in communication with a discharge tube. Due to the presence of these reliefs, traces are likely to appear between the sanded areas.

It is these drawbacks that the invention particularly intends to remedy by proposing a device for holding a hand tool facilitating the finishing work of hard to reach surfaces.

For this purpose, the subject of the invention is a device for holding a hand tool suitable for finishing a coated surface, this device being defined in claim 1.

The fact of being able to pivot in two perpendicular planes the support of the tool relative to the gripping member facilitates, for the operator, access to the different areas of the surface to be treated. The shape of the bearing surface facilitates the use of the tool and limits the traces between the sanded areas.

According to advantageous but non-obligatory aspects of the invention, such a device may incorporate one or more of the features defined in claims 2 to 6.

The invention also relates to a kit, comprising at least one device for holding a hand tool, as defined in claim 7.

• la figure 1 est une vue générale d'un dispositif de maintien d'un outil à main conforme à un mode de réalisation de l'invention, dans une configuration dite de repos, l'organe de préhension n'ayant pas pivoté par rapport au support, le dispositif étant représenté sans outil,
• la figure 2 est une vue de côté à la même échelle, du dispositif de la figure 1, dans une configuration dite active, en l'espèce l'organe de préhension étant incliné par rapport au support,
• la figure 3 est une vue similaire à la figure 1, sous un autre angle et à la même échelle, une partie du dispositif étant enlevée,
• la figure 4 est une vue de face et à la même échelle, du dispositif représenté aux figures 1 et 2, en configuration active, une partie du dispositif étant démontée,
• la figure 5 est une vue générale, à la même échelle, du support de l'outil seul,
• la figure 6 est une coupe, à plus grande échelle, selon le plan VI à la figure 5,
• la figure 7 est une vue générale, sous un autre angle, du dispositif représenté à la figure 4, avec un outil en position sur le support et
• la figure 8 est une vue générale du dispositif de la figure 7, équipé d'un manche, en position d'utilisation, l'outil étant en appui sur une surface.

The invention will be better understood and other advantages of it will appear more clearly on reading the following description of several embodiments of a device for holding a hand tool in accordance with the invention, as well as a kit comprising such a device, given solely by way of example and with reference to the appended drawings in which :

• the figure 1 is a general view of a holding device of a hand tool according to an embodiment of the invention, in a so-called rest configuration, the gripping member having not pivoted relative to the support, the device being shown without tools,
• the figure 2 is a side view on the same scale, of the device of the figure 1 in a so-called active configuration, in this case the gripping member being inclined with respect to the support,
• the figure 3 is a view similar to the figure 1 , at another angle and at the same scale, part of the device being removed,
• the figure 4 is a front view and on the same scale, of the device shown in Figures 1 and 2 in active configuration, a part of the device being disassembled,
• the figure 5 is a general view, on the same scale, of the support of the tool alone,
• the figure 6 is a section, on a larger scale, according to plan VI to figure 5 ,
• the figure 7 is a general view, from another angle, of the device represented in figure 4 , with a tool in position on the support and
• the figure 8 is a general view of the device of the figure 7 equipped with a handle, in the use position, the tool resting on a surface.

The device 1 represented at figure 1 includes, in the lower part looking at the figure 1 , a support 2 for a tool, not shown. In this case, the support 2 has a lower face 3 of generally rectangular shape. This surface 3 forms a bearing surface on a surface of a hand tool, not shown, of complementary shape and dimensions. Given the dimensions of the face 3, is easily maintained, preferably removably, a tool. This is for example a tool used for finishing coated surfaces, such as a rectangular sanding wedge, to rectangular or triangular cross section. The tool can be a sheet of abrasive paper. In an embodiment described below, the tool is a lamp.

Maintaining the wedge or the abrasive sheet on this surface 3 is achieved by known techniques, for example by insertion into slots 4 formed in the sides 5 and 6 of the support 2, as illustrated in FIG. figure 6 . Alternatively, the maintenance is provided by self-gripping strips.

Advantageously, as illustrated in figure 6 , the longitudinal edges 30, 31 of the surface 3 are raised in the direction of the upper surface 7 of the support 2, which allows, when using the device 1 for sanding, to limit the traces between the sanded areas. As a result, the surface 3 is flat only in its central portion 300. It is slightly curved peripherally, at its edges 30 and 31.

The support 2 is hollow. As represented in figure 6 spacers 8 connect and stiffen the lower 3 and upper surfaces 7. As a variant not shown, the spacers 8 are pierced or louvered, allowing the communication of the different compartments defined by the spacers. The slots 4 are thus delimited by the spacing between the surfaces 3 and 7. A cylindrical body 9, with circular and hollow section, extends, in the median position, from the upper face 7 of the support 2. This cylindrical body 9 is integral with the support 2 so that the longitudinal axes X ₉ and X ₂ respectively of the body 9 and the support 2 are parallel. The body 9 communicates with the hollow central portion 10 of the support 2. When the spacers 8 are pierced or louvered, all the hollow portions of the body 9 and the support 2 communicate with each other.

In the middle part of the cylindrical body 9, that is to say substantially at the center of gravity of the assembly formed by the support 2 and the body 9, a cutout 11 is formed. This cut, visible at the figure 5 , forms a receiving housing 11 for a ball 12. This, visible to Figures 1-4 and 7 is embedded in the cutout 11. The ball 12 is in the form of hollow cylinder with circular section. The dimensions of the ball 12 are adapted so that it can not be accidentally extracted from the blank 11, while being free in rotation around the longitudinal axis X ₉ of the body 9. It is provided with a circular relief 13 extending radially with respect to the ball 12. Thus, the central axis X ₁₃ of the relief 13 is perpendicular to the X axis ₉ . This relief 13 is provided with an open end 14 open, visible particularly to figures 4 and 7 . The relief 13 being hollow, it allows the communication of the inside of the ball 12 with the outside.

This ball 12 is provided with an opening, not visible in the different figures, formed in the part of the ball 12 which remains permanently inside the cylindrical body 9. It is thus possible to communicate the outside, via the opening 14 of the relief 13 with the interior of the body 9, so with the lower surface 3, to the extent that the latter is provided with at least one hole.

The ball 12 is also provided with two cups 15, hollowed in the wall of the ball 12, substantially at the bottom 110 of the blank 11, when the support 2 is in the so-called rest position, as illustrated in FIGS. figures 1 and 3 . These two cups 15, only one of which is visible at figure 3 are arranged diametrically with respect to each other. They are aligned along an axis X ₁₅ perpendicular to the axis X ₁₃ of the relief 13. The cups 15 form receiving housings for lugs, not visible, fixed on the opposite faces of the ends 16, 17 of the teeth 18, respectively 19 of a fork 20 with two teeth. The lugs are removably mounted, for example by clipping, in the cups 15 so that they are locked in translation while being rotatable about the X axis ₁₅ .

The fork 20 is thus rotatable, on the one hand, about an axis X ₁₅ , generally perpendicular to the longitudinal axis X ₉ of the body 9 when the device 1 is in the rest configuration, and on the other hand around the X axis ₉ , by rotation of the ball 12 in the body 9. The fork 20 can pivot about these axes in a limited manner, the limit being reached when the fork 20 is in contact with the cylindrical body 9 when of a rotational movement of the fork 20 around the pivot axis X ₁₅ or in contact with the face 7 of the support 2 during a rotational movement about the axis X ₉ .

This fork 20, illustrated in Figures 1, 2 , 4 and 7 , extends, at the portion 21 on which are fixed the teeth 18 and 19, by a tubular member 22 constituting a gripping member of the device 1. This part 22 is hollow, cylindrical circular section. According to the invention, the teeth 18, 19 are hollow and also communicate with the part 22.

The part 22 is provided with two slots 23, configured in a U, arranged diametrically, a slot being visible at the figure 4 . The slots 23 each delimit a tongue 24 forming a leaf spring. The tongues 24 are provided at their free ends with a relief 25 adapted to ensure, by pressure, a displacement of the tongue 25 directed towards the inside of the tube 22. Between this pusher 25 and the end of the tongue 24 connected to the 22, a pin 26, generally circular in shape, is adapted to be inserted into holes of complementary shapes formed in gripping members, not shown.

Such gripping members are of the female type. This is, for example, a hollow end of a handle, a base, or a telescopic handle 30 as illustrated in FIG. figure 8 . Advantageously, a free end 31 of the handle 30 is adapted to be connected to at least one type of suction device, for example a tip of a suction pipe. For this, the end 31 and the handle 30 are hollow. The end 31 is, for example, made of elastomer, with an open portion accordion, with a variable inner diameter. Thus the end 31 forms a housing for receiving different tips of suction devices, these end pieces fitting more or less into the end 31 according to their external diameters. Thus, can be inserted removably, by clipping, the tubular end 22 of the fork 20 in a particular gripping member.

To separate the fork 20, simply press the pushers 25 so that the pins 26, fading inside the tube 22, emerge from their recesses formed in the gripping member.

It is thus possible to pivot the fork 20 relative to the support 2 along two paths, generally configured in an arc and illustrated in FIG. figure 1 by the double arrows F ₁ and F ₂ . A trajectory F ₁ corresponds to rotational movement of the fork 20 about the X axis ₁₅ . The other path F ₂ corresponds to the pivoting of the ball around the axis X ₉ . It should be noted that these movements can be performed simultaneously or not. In other words, the ball 12 with the cups 15 form a pivot member for pivoting the support 2 relative to the fork 20. The movements are carried out in one direction or the other and in two planes P ₁ , P ₂ perpendicular.

Between the opening 14 of the relief 13 and the open end 27 of the tubular portion 22 of the fork 20, there is a conduit 28. A portion 280 of the duct 28 is configured accordion and a portion 281 is cylindrical with circular section . Such a duct 28 is particularly visible at the figure 3 .

This conduit 28 is open at the ends and, advantageously, made of a flexible material, for example a polymer. It makes it possible to connect the tubular element 22 of the fork 20 and the inside of the ball 12. The teeth 18, 19 being hollow, they also connect the tubular element 22 and the inside of the ball 12.

If the tubular element 22 is connected to a suction pump, it is thus possible, via the duct 28, to suck up the dust collected at the surface 3. The accordion portion 280 of the duct 28 allows following the different movements, according to the double arrows F ₁ and F ₂ , the fork 20, without risking damaging the material constituting the conduit due to the repetition of movements.

Instead of a wedge-type tool or sanding sheet, it is possible to fix on the surface 3, by the same techniques as above or by other techniques such as metal clips, a lamp 29, such as illustrated in figures 7 and 8 . Advantageously, such a lamp 29 is an LED lamp. This lamp can be self-contained, as illustrated in figures 7 and 8 , or connected to the sector. In this case, it is advantageous to pass an electric wire through the orifice 13 of the ball 12 and / or the tubular element 22. In a variant that is not illustrated, the ends of the lamp are provided with abutments of damping material, for example rubber stamps.

The lamp 29 is adapted to be fixed, for example, on a base placed in line with a wall.

In one embodiment, illustrated in figure 8 , the support 2 equipped with the lamp 29 is mounted, via the tubular element 22, on a telescopic handle 30 of which one end 31 is equipped with a support member, for example a rubber stamp, on a wall 32, in this case the ground. The support on another wall 33, in this case the ceiling, parallel to the wall 32, an edge 290 of the support 2 holding the lamp 29 can block it in position against a wall 34. In other words, the lamp 29 is mounted on a handle forming a strut, horizontal or vertical, for holding the lamp 29 against a surface to be controlled.

The handle 30 may also be supported, at an angle, on the floor 32, the lamp 29 then bearing against the wall 34.

In a non-illustrated embodiment, the ends of the handle 30 are supported on two parallel walls. The support is then provided with a member allowing an operator to slide this support 2, thus the lamp 29, along the handle 30 and to block the support 2 at a given position on the handle 30.

Thus, a check of the surface condition after sanding is performed by arranging the lamp 29 so that it illuminates in grazing light the partition. Thus, a shadows game is made to highlight any irregularities in the sanded surface.

It is also possible to use such a device without the tubular conduit 28 and / or without the fork 20, that is to say as illustrated in FIG. figure 5 . In this case the shape of the cylindrical body 9 allows the latter to define a maneuvering member. To the figure 5 , to facilitate the reading of the drawing, the ball 12 is not shown. However, when using the device in this configuration, the ball 12 remains in place. In other words, it is possible for the user to use the support 2 as a simple wedge for holding a tool, advantageously as a sanding wedge provided with a sheet of abrasive material.

Such a device makes it possible to access the hard-to-reach parts of the partitions, by acting on the inclination of the support 2 relative to the handle 22 itself. The addition of a telescopic handle 30 on the end of the gripping member 22 facilitates the work in the upper part of the partitions.

It is also easy to maintain a given angle for sanding operations by blocking by means known per se the inclination of the ball 12 and / or the fork 20 to given values.

The invention also relates to a kit comprising at least one device 1 for holding a hand tool. The kit also advantageously comprises at least one other gripping member, for example a telescopic handle provided with a female end adapted to receive and hold, by removable clipping, the gripping member 22.

Alternatively, the handle is replaced by a base for positioning the device 1 at a given location relative to the surface to be sanded. The kit advantageously comprises at least one other tool, for example a set of sanding wedges and / or sanding sheets, knives and scrapers.

Such a kit allows finishing operations on a surface, previously coated, namely a wall, using the required sanding elements.

Claims (7)

1. Device (1) for holding a hand tool suitable for finishing a coated surface comprising a support (2) for the tool, a gripping element (20, 22) and a pivot element (12, 15, 20) suitable for pivoting the support (2) in relation to the gripping element (22) along two trajectories (F₁, F₂) located in two perpendicular planes (P₁, P₂), wherein the pivot element (12, 15, 20) comprises:

   • a pivot pin (12) mounted to pivot around a rotation axis (X₉) parallel to a longitudinal axis (X₂) of the support (2), and

   • a fork (20), the ends (16, 17) of the prongs (18, 19) of which are mounted to pivot on the pivot pin (12) around an axis (X₁₅) perpendicular to the rotation axis (X₉) of the pivot pin (12),

   wherein the support (2) comprises at least one bearing surface (3) for a complementary surface of the tool, characterised in that the bearing surface (3) of the support (2) is plane in its central portion (300) and curved on the periphery (30, 31), and in that the prongs (18, 19) of the fork (20) are hollow and connect the gripping element (22) with the interior of the pivot pin (12).
2. Device according to claim 1, characterised in that the longitudinal edges located on the periphery (30, 31) of the bearing surface (3) are raised in the direction of an upper surface (7) of the support (2).
3. Device according to claim 1, characterised in that the gripping element comprises a tubular element (22) mounted on the part (21) of the fork (20), on which the prongs (18, 19) are fastened.
4. Device according to claim 3, characterised in that this tubular element (22) is fitted with an element (24, 25, 26) for detachably connecting to a control lever, a base or a telescopic handle (30).
5. Device according to claim 1, characterised in that the support (2) is hollow and in that the bearing surface (3) is suitable for ensuring the removal of the polishing dusts by suction.
6. Device according to one of the preceding claims, characterised in that the support (2) is suitable for holding a lamp (29).
7. Kit comprising at least one device (1) for holding a hand tool in accordance with one of the preceding claims.

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