FR3073317B1 - DEVICE FOR MAINTAINING A SELF-ADHESIVE SHEET AGAINST A WALL - Google Patents

Abstract

Device for holding (1) a self-adhesive foil (F) against a wall (P) comprising: - a rigid support arm (2) having two longitudinal ends (EX2, EX2 '), - a suction system (3) , mounted at the first longitudinal end (EX2), configured to secure the first longitudinal end on a flat surface (S), belonging to or near said wall (P), - a support pad (4), mounted at the second longitudinal end (EX2 '), configured to transmit a bearing force to the self-adhesive sheet (F) to hold it against said wall (P), - a system (5) for placing under stress of the second longitudinal end (EX2 '), distinct from the support arm (2), connecting the support arm (2) to the suction system (3) and configured to exert a support force at the level of the second longitudinal end (EX2 ') in the direction of the wall (P).

Description

The present invention relates to a device for holding a self-adhesive sheet against a wall.

The present invention also relates to a method of bonding a self-adhesive sheet against a wall by means of a device for holding a self-adhesive sheet against a wall.

The field of the invention is that of devices for maintaining a self-adhesive sheet against a wall in order to facilitate the fixing of the self-adhesive sheet by an operator on the wall at a given position, particularly when the sheet is large. dimensions.

Indeed, a self-adhesive sheet comprises in known manner two faces: a printed face intended to be the visible face of the sheet, once glued, and a tacky face, covered with an adhesive material, intended to be affixed against a wall for ensure the attachment of the sheet on the wall. Said sticky surface is generally covered with a protective film to protect the adhesive material from soiling as long as the sheet is not adhered.

In known manner, to ensure the attachment of such a sheet against a wall, in particular a glass wall or a wall of a building, an operator, after positioning the sheet on the wall at the desired position, folds the sheet in half , maintains a first end of the sheet against the wall with a first hand, and comes to remove the protective film, at a second end of the sheet, with his second hand, possibly assisted by his first hand, which still maintains the sheet at its first end portion, before unfolding the sheet to glue against the wall with its first hand, starting with the second end and ending with the first.

Such an operation proves particularly tedious for an operator working alone, since removing the protective film from the self-adhesive sheet and sticking the sheet against the wall with one hand, while holding this sheet with his other hand, requires great dexterity and more when the sheet is large or when the wall is of complex geometry, for example non-planar.

Thus, this procedure of sticking the self-adhesive foil on a wall can become particularly complex for an operator, and thus take a considerable time, or may affect the good positioning and the quality of the sticking of the self-adhesive sheet on the wall. The objective of the present invention is to overcome these disadvantages by proposing a device for holding a self-adhesive sheet against a wall, as well as a method of bonding a sheet to a wall enabling a single operator to quickly achieve and simply sticking a self-adhesive sheet on a wall, with a quality of positioning and gluing of the sheet on the optimal wall.

Thus, the invention relates to a device for holding a wall-adhesive sheet comprising: - a rigid support arm having two longitudinal ends, - a suction system, mounted at the first longitudinal end of the support arm, configured to secure the first longitudinal end of the support arm on a flat surface, belonging to or near said wall, - a support pad, mounted at the second longitudinal end of the support arm, configured for transmitting a support force to the self-adhesive sheet to hold it against said wall, - a stressing system of the second longitudinal end of the support arm, separate from the support arm, connecting the support arm to the suction system and configured to exert a bearing force at the second longitudinal end, towards the wall.

According to optional features of rinsing taken alone or in combination: - the rigid support arm is of bent shape, - the support pad is mounted on the support arm, pivoting about an axis of rotation, including a first axis of rotation - the suction system is mounted on the support arm, pivoting about an axis of rotation, in particular a second axis of rotation, - the first axis of rotation and the second axis of rotation are parallel, - The suction system comprises: - a rigid bell mounted on the support arm having a bore formed on an upper face of the bell, - a flexible suction cup, similar in shape to that of the rigid bell, received in the rigid bell, provided with a protruding rod in the upper part, intended to pass through the bore formed on the upper face of the rigid bell, and intended to be pressed against said flat surface, - a cam lever, comprising a an actuating portion, projecting from the support arm, and a cam portion, said camming portion of the cam lever being configured to: - press on the upper face of the rigid bell to ensure relative movement by translating the flexible suction cup relative to the rigid bell so that the flexible suction cup comes away from the flat surface to ensure the attachment of the flexible suction cup to said flat surface, when the lever is in a first position, - and do not press on the upper face of the bell, so that the soft suction cup is closer to the flat surface, and allow that the soft suction pad does not stick to the flat surface, when the lever is in a second position, distinct from the first position. the stressing system of the second longitudinal end of the support arm comprises: an L-shaped groove formed on a lateral face of the support arm, comprising a first longitudinal displacement portion situated on the side of the first longitudinal end of the support arm; support arm, and a second longitudinal immobilization portion, located on the side of the second end of the support arm, - a displacement axis, received in the L-shaped groove and projecting outwardly from the support arm, a tension spring, a first end of which is attached to the suction system, and a second end is attached to the axis of movement, said stressing system being configured to move from a disarmed state when the axis of displacement is in the longitudinal portion of displacement of the L-shaped groove, in an armed state when the axis of displacement is in the longitudinal portion immobilizing the L-shaped groove and that the spring is maintained in tension, - the support arm has two identical flat flanks and arranged parallel to each other, an L-shaped groove being formed in each flank, the two grooves in L being identical and arranged symmetrically with respect to a median plane of the support arm, and the axis of displacement is of such length as to extend between the two sides of the support arm and to project on both sides of the support arm support arm through each of the L-shaped grooves, - the support pad comprises a magnet. The invention also relates to a method of bonding a self-adhesive sheet against a wall, said self-adhesive sheet comprising a printed face and a tacky face protected by a protective film, said method comprising the steps of: (a) providing a device maintaining a self-adhesive sheet against a wall according to the invention, (b) positioning the self-adhesive sheet on the wall, with the tacky face facing the wall, (c) fixing the second end of the arm support of the holding device on a flat surface, belonging to or near said wall, via the suction system, (d) implementation of the stressing system of the second longitudinal end of the support arm of the holding device, so that the support pad comes to press the self-adhesive sheet against the wall, at a first end portion of the self-adhesive foil (e) removing, at least partially, the protective film from the sticky side of said self-adhesive sheet from a second end portion of the self-adhesive sheet, (f) adhering the self-adhesive sheet to said self-adhesive sheet; wall according to the desired position. The invention will be better understood on reading the following description accompanied by the drawings of which: FIG. 1 is a top view of a device for holding a self-adhesive sheet according to one embodiment of the invention; FIG. 2 is a view from the side of the device of FIG. 1; FIG. 3 is a view similar to FIG. 2, in which the details of the suction system are shown; FIG. 4a is a view from above illustrating the step (b) of the method according to one embodiment of the invention, - Figure 4b is a top view illustrating step (c) of the method according to one embodiment of the invention, - Figure 4c is a top view illustrating step (d) of the method according to one embodiment of the invention, - Figure 4d is a top view illustrating step (e) of the method according to one embodiment of the invention - Figure 4e is a top view illustrating the ape (f) of the method according to one embodiment of the invention, - Figure 4f is a top view illustrating the sheet bonded to the wall at the end of the process according to one embodiment of the invention, - The FIG. 5 is a detailed view of the lever of the suction system of the holding device of FIG. 1. The invention relates to a device 1 for holding a self-adhesive sheet L against a wall P comprising: a rigid support arm 2 having two longitudinal ends EX2, EX2 ', - a suction system 3, mounted at the first longitudinal end EX2 of the support arm 2, configured to secure the first longitudinal end EX2 of the support arm 2 on a surface S plane, belonging to or near said wall P, - a support pad 4, mounted at the second longitudinal end EX2 'of the support arm 2, configured to transmit a fire support force itel adhesive F to maintain against said wall P - a system 5 stressing the second longitudinal end EX2 'of the support arm 2, separate from the support arm 2, connecting the support arm 2 to the suction system 3 and configured to exert a bearing force at the second longitudinal end EX2 ', in the direction of the wall P.

With such a device according to the invention, the holding of the self-adhesive foil F against the wall P, before the removal of the protective film PR from the sticky face fa of the self-adhesive foil F, can be achieved by the device 1, and not by the operator with his hand. Thus, the operator will have both hands available to perform the following operations necessary for bonding the sheet F on the wall P, and in particular the removal of the protective film PR from the sticky side fa of the self-adhesive sheet F, or still sticking the self-adhesive foil F to the wall P. The use of a stressing system 5 of the second longitudinal end EX2 'makes it possible to generate a substantial bearing force at the level of the second longitudinal end EX2' transmitted to the self-adhesive foil L, through the interlocking of the support pad 4. The self-adhesive foil L is thus held firmly against the wall P and does not risk slipping or escaping.

The bonding of the self-adhesive sheet L on the wall P can therefore be done simply and quickly by an operator working alone.

The wall P is in particular a flat wall, and may for example be a glass wall or a wall of a building, or an outer wall of a vehicle.

Thus, the use of a suction system 3 for fixing the first end EX2 of the support arm 2 on a flat surface S belonging to or near the wall P is particularly advantageous for obtaining a reliable attachment, whatever the material of the flat surface S.

Advantageously, as can be seen in FIGS. 1 to 3, the support pad 4 can be made in the form of a substantially cylindrical piece, of which a lower flat wall 41 constitutes the support surface of the support pad 4, and is provided to press directly on the wall P to transmit the support force. Such an embodiment has the advantage of providing a good distribution of the support force on the self-adhesive sheet F, which minimizes the risk of deterioration of the self-adhesive sheet.

Alternatively, it may be envisaged other embodiments of the support pad 4, for example a support pad 4 made in the form of a substantially spherical or hemispherical piece.

According to one embodiment, the rigid support arm 2 is of bent shape.

Such a shape makes the support arm 2 more ergonomic for its manipulation by an operator, and also contributes to the effectiveness of the support force exerted at the second longitudinal end EX2 'by rintermédrarre the setting system under constraint.

Such a shape also makes it possible to compensate for a difference in level between the flat surface S on which the suction system 3 is fixed and the wall P on which the self-adhesive foil F must be glued.

Advantageously, as can be seen in the embodiments of FIGS. 2 and 3, the support arm may be of rounded curved shape.

This advantageous arrangement of the invention makes it possible not to damage the self-adhesive foil F when it is in contact with the support arm 2.

Alternatively, the support arm 2 can be provided substantially rectilinear.

According to one embodiment, the support pad 4 is mounted on the support arm 2, pivoting about an axis of rotation, in particular a first axis of rotation 7.

As can be seen in the embodiment of FIGS. 1 to 3, the axis of rotation 7 may comprise a spacer piece A7, received in holes provided on the support pad 4 and on the support arm 2, and be fixed by means of a nut E7, in particular a wing nut, screwed onto a threaded end of the spacer piece A7, projecting from an outer face F21 of the support arm.

This advantageous arrangement makes it possible to ensure that the support pad 4 is properly supported on the self-adhesive foil F when placed on it, in particular when the support pad 4 is in the form of a substantially cylindrical pressing on the self-adhesive sheet F via a flat wall 41, as described above, and in particular in the case where the flat surface S and the wall P are not parallel, for example when the flat surface S n does not belong to the wall P.

Indeed, for the support force to be optimally transmitted by the support pad 4 to the self-adhesive sheet F, it is necessary that the entire bearing surface 41 of the support pad 4 is found in support against the self-adhesive foil F.

According to one embodiment, the suction system 3 is mounted on the support arm 2 pivoting about an axis of rotation, in particular a second axis of rotation 6.

As can be seen in the embodiment of FIGS. 1 and 2, the axis of rotation 6 may comprise a rod T6 received in holes provided on the suction system 3 and on the support arm 2, and may be fixed by means of FIG. intermediate of a nut E6, in particular a knurled nut, screwed onto a threaded end of the rod T6, projecting from an outer face F21 of the support arm.

This advantageous arrangement of the invention makes it possible to adjust the relative position between the suction system 3 and the support pad 4.

According to one embodiment, the first axis of rotation 7 and the second axis of rotation 6 are parallel.

This advantageous arrangement of the invention makes it possible to guarantee that the bearing surface 41 of the support pad 4 remains parallel to the bearing surface 34 of the suction system 3, in particular when the flat surface S on which the system is fixed Suction cup 3 is not at the same level as the wall P.

According to one embodiment, the suction system 3 comprises: - a rigid bell 31 mounted on the support arm 2 having a bore formed on an upper face F31 of the bell 31, - a flexible suction pad 32, of a shape similar to that the rigid bell 31, received in the rigid bell 31, provided with a protruding rod T32 in the upper part, intended to pass through the bore formed on the upper face F31 of the rigid bell 31, and intended to be pressed against said flat surface S, - a cam lever 33, having an actuating portion A33, projecting from the support arm 2, and a cam portion C33, said cam portion C33 of the cam lever 33 being configured to: - press on the upper face F31 of the rigid bell 31 in order to ensure the relative displacement in translation of the flexible suction pad 32 with respect to the rigid bell 31 so that the soft suction pad 32 comes away from the flat surface S afi n to ensure the attachment of the flexible suction cup to said flat surface S, when the lever is in a first position, - and not to press the upper face F31 of the bell 31, so that the flexible suction cup 32 is found close to the the flat surface S, and allow that the flexible suction pad 32 does not catch on the flat surface S, when the lever 33 is in a second position, distinct from the first position.

As visible in the embodiment of Figure 1, the lever 33 can be pivotally mounted on the support arm 2 through the intermediate rod T6 through one or more holes P33 formed on the lever 33, in particular at the level of the cam portion C33 of the lever 33, as visible in the embodiment of FIG. 5.

The rigid bell 31 and the flexible suction cup 32 may also be pivotally mounted with respect to the support arm 2, through the interlock of the rod T6 passing through one or more holes each formed on the rigid bell 31 or on the flexible suction pad 32.

Advantageously, the rigid bell 31 may be made of metal or hard plastic.

Advantageously, the actuating portion A33 of the lever 33 is dimensioned so as to project from the support arm 2 with a shape and a length such that this portion A33 is accessible for an operator having his hand positioned on the arm of support 2, in particular substantially midway between the support pad 4 and the suction system 3, with the same hand.

A spring R32, visible on the embodiment of Figure 3, may be provided around the rod T32 to bias the relative movement of the flexible suction pad 32 relative to the rigid bell 31 to move away from the bell, when the lever is in the second position.

Such a suction system 31 comprising a cam lever 33 is well known to the man of the meter and will not be described in more detail, particularly with regard to the profile of the cam portion C33 of the lever 33, which can be any profile known from the state of the art.

Alternatively, any other type of suction system could have been used without departing from the scope of the present invention, for example a suction system 3 with a vacuum pump or a suction cup "bare", that is to say without means to expel the air between the suction cup and the flat surface S.

According to an embodiment not shown, the suction system 31 may further comprise an electromagnetic sucker, especially when said suction cup is provided to be fixed on a flat surface S comprising a magnetic material, for example iron. In such an embodiment, a power supply, for example a battery, may be provided to provide the electrical energy necessary for the operation of the electromagnetic lock.

According to one embodiment, the system 5 for stressing the second longitudinal end EX2 'of the support arm 2 comprises: an L-shaped groove 51 formed on a lateral face of the support arm 2, comprising a first longitudinal portion of 51D, located on the side of the first longitudinal end EX2 of the support arm 2, and a second longitudinal immobilization portion 511, located on the side of the second end of the support arm, - a displacement axis 52, received in the L-shaped groove 51 projecting outwardly from the support arm 2, - a tension spring 53, a first end of which is fixed to the suction system, and a second end is fixed to the displacement axis 52, said stressing system 5 being configured so as to move from a disarmed state when the displacement axis 52 is in the longitudinal displacement portion 51D of the r L-beam, in an armed state when the axis of displacement 52 is in the longitudinal immobilization portion 511 of the L-shaped groove and that the spring 53 is found in tension.

Advantageously, the L-shaped groove 51 is dimensioned and configured so that the second immobilization portion 511 prevents displacement of the displacement axis 52, without external action, once put in place in said second immobilization portion 511. As can be seen in FIGS. 2 and 3, the L-shaped section 51 thus forms an L whose tip is directed away from the support pad 4 and the suction system 3.

Such a stressing system 5 has the advantage of being easily armed and disarmed by an operator with one hand. Indeed, to arm the system 5, it is sufficient to slide the displacement axis 52 along the longitudinal portion of movement 52D until it enters the second longitudinal immobilization portion 521.

To disarm the stressing system 5, it suffices for the operator to move the displacement axis 52 slightly out of the immobilization portion 511, the axis 52 then being driven along the displacement portion 51D under the action of the tension spring 53.

Advantageously, the spring 53 is dimensioned so as to be able to exert sufficient force on the second longitudinal end portion EX2 'of the support arm 2 to ensure optimum retention of the self-adhesive sheet F against the wall P, and for it can be manually stretched by an operator when moving from the displacement portion 51D to the immobilization portion 511.

As can be seen in the exemplary embodiments of FIGS. 2 and 3, the traction spring 53 can be fixed to the rigid bell 31 of the suction system 3 by means of a fixing ring formed on the rigid bell 31.

The tension spring 53 can also be fixed on the axis of displacement 52 at the level of a groove formed on the axis of displacement 52.

According to one embodiment, the support arm 2 comprises two identical flat flanks 21, 22 arranged parallel to each other, a fillet 51 at F being formed in each flank 21, 22, the two furrings 51 at F being identical and arranged symmetrically. relative to a median plane PM of the support arm 2.

Advantageously, the displacement axis 52 is of such length as to extend between the two flanks 21, 22 of the support arm 2 and to project on either side of the support arm 2, passing through each of the branches 51 F.

As can be seen in the embodiments of FIG. 1, the flanks 21, 22 may be made from cut sheets or in the form of plastic moldings.

A spacer plate 23 may be provided to connect the two flanks 21, 22 parallel to each other at a desired spacing.

Advantageously, the flanks 21, 22 of the support arm 2 are also arranged symmetrically with respect to the median plane PM of the support arm 2.

As visible in the embodiment of Figure 1, a notch 24 may be provided on the spacer plate 23, near the second longitudinal end portion EX2 '. Such an indentation 24 is advantageously shaped so as to accommodate the finger of an operator, for example an inch.

Such indentation 24 facilitates the arming or disarming of the stressing system 5 by an operator, with one hand. Indeed, an operator may, for example, introduce his thumb into the notch 24 and then grasp with his forefinger and middle finger, of the same hand, the two portions of the axis of displacement 52, projecting from the two sides 21 22, in order to drive the displacement axis 52 in translation along the displacement portion 51D or the immobilization portion 5II of each of the L-shaped grooves 51.

According to one embodiment, the support pad 4 comprises a magnet. H makes it possible to maintain the self-adhesive foil F when the wall P comprises a magnetic material, without using the suction system. The use of a magnet at the level of the support pad 4 can still advantageously make it possible to increase the support force transmitted by the support pad 4 to the self-adhesive sheet F, when the wall P comprises a magnetic material, for example iron.

Such a magnet may for example be a permanent magnet, or an electromagnet. Such a magnet can be fixed at the level of the support pad 4 so that its lower face comes flush with the bearing surface 41 of the support pad 4.

Advantageously, the magnet may be arranged in the center of the support pad 4. A plurality of magnets may also be provided at the level of the support pad 4, these armaments being in particular regularly distributed on the support pad 4, by example in a circular fashion. The invention also relates to a method of bonding a self-adhesive foil F to a wall P, said self-adhesive foil F comprising a printed face fi and a tacky face fa protected by a protective film PR, said method comprising the steps of: ) supplying a device 1 for holding a self-adhesive sheet against a wall P according to the invention, (b) placing the self-adhesive sheet F on the wall P with the sticky face fa facing the wall P, (c) fixing the second end EX2 'of the support arm 2 of the holding device 1 on a flat surface S, belonging to or near said wall P, via the suction system 3, (d) implementation of the system 5 for stressing the second longitudinal end EX2 'of the support arm 2 of the holding device 1, so that the support pad 4 comes to press the self-adhesive sheet F against the wall P, at the level of of a first end portion EF of the self-adhesive foil F, (e) at least partially removing the protective film PR from the adhesive side fa of said self-adhesive foil F from a second end portion EF of the self-adhesive foil F, (f) bonding of the self-adhesive foil F to said wall P according to the desired position.

Steps (b) to (f) of the method are respectively illustrated in Figures 4a to 4e.

This method has the advantage of allowing a single operator to be able to use both hands to perform the step (e) of removing the protective film PR from the adhesive face fa of the self-adhesive foil F, but also the step (f) of sticking the self-adhesive foil F on the wall P.

Thus, as can be seen in the embodiment of FIG. 4f, the self-adhesive foil F, at the end of the process according to the invention, is positioned adequately on the wall P and stuck properly. In addition, such a method is simple and quick to implement, thanks to the use of the holding device 1 according to the invention.

According to a first embodiment, these different steps are carried out chronologically in this order.

Alternatively, step (c) can be performed before step (b) or simultaneously.

According to one embodiment of the method, a plurality of holding devices 1 according to the invention can be used to ensure the maintenance of the adhesive sheet F against the wall P.

Naturally, other embodiments could have been envisaged by those skilled in the art without departing from the scope of the invention defined by the claims below.

NOMENCLATURE 1. Holding device 2. Support arm 21, 22. Flank F21, F22. Outside face PM. Median plane 23. Spacer plate 24. Notch 3. Suction system 31. Rigid bell F31. Upper face 32. T32 soft suction pad. Rod R32. Spring 33. February A3 3. Actuation portion C33. Cam portion P33. Drilling 4. Support pad 41. Support surface 5. Constraint system

51. L-shaped groove 51D. Longitudinal portion of displacement 511. Longitudinal portion of immobilization 52. Axis of displacement 53. Traction spring 6. Second axis of rotation T6. E6 stem. Nut 7. First axis of rotation A7. Spacer part E7. Nut F. Self-adhesive foil Sticky face fi. Printed face EF, EF '. End portion PR. Protective film P. Wall S. Flat surface

Claims (10)

1. Device for holding (1) a self-adhesive foil (F) against a wall (P) comprising: - a rigid support arm (2) comprising two longitudinal ends (EX2, EX2 '), - a suction system ( 3), mounted at the first longitudinal end (EX2) of the support arm (2), configured to secure the first longitudinal end of the support arm on a flat surface (S), belonging to or near the , said wall (P), - a support pad (4), mounted at the second longitudinal end (EX2 ') of the support arm (2), configured to transmit a bearing force to the self-adhesive sheet ( F) to maintain it against said wall (P), - a system (5) for stressing the second longitudinal end (EX2 ') of the support arm (2), distinct from the support arm (2), connecting the support arm (2) to the suction system (3) and configured to exert a support force at the level of the longitudinal end (EX2 ') towards the wall (P). 2. Device according to claim 1, wherein the rigid support arm (2) is of bent shape. 3. Device according to one of claims 1 or 2, wherein the bearing pad (4) is mounted on the support arm (2), pivoting about an axis of rotation, in particular a first axis of rotation ( 7). 4. Device according to any one of claims 1 to 3, wherein the suction system (3) is mounted on the support arm (2), pivoting about an axis of rotation, in particular a second axis of rotation ( 6). 5. Device according to claims 3 and 4, wherein the first axis of rotation (7) and the second axis of rotation (6) are parallel. 6. Device according to any one of claims 1 to 5 wherein the suction system (3) comprises: - a rigid bell (31) mounted on the support arm (2) having a bore formed on an upper face (F31 ) of the bell (31), - a flexible suction cup (32), similar in shape to that of the rigid bell (31), received in the rigid bell (31), provided with a rod (32) protruding in the upper part , intended to pass through the bore formed on the upper face (F31) of the rigid bell (31), and intended to be pressed against said flat surface (S), - a cam lever (33), comprising an actuating portion (A33), mounted projecting from the support arm (2), and a cam portion (C33), said cam portion (C33) of the cam lever (33) being configured to: - press on the upper face ( F31) of the rigid bell (31) in order to ensure relative displacement in translation of the flexible suction cup (32) with respect to the bell rigid (31) for the flexible suction cup (32) to move away from the flat surface (S) to ensure the attachment of the flexible suction cup (32) to said flat surface (S), when the lever (33) is in a first position, - and not pressing the upper face (F31) of the bell (31), so that the flexible suction cup (32) is closer to the flat surface (S), and allow the soft suction cup (32) does not engage the flat surface (S) when the lever (33) is in a second position, distinct from the first position. 7. Device according to any one of claims 1 to 6, wherein the system (5) stressing the second longitudinal end (EX2 ') of the support arm (2) comprises: - a groove (51) in L arranged on a lateral face (F21, F22) of the support arm (2), comprising a first longitudinal displacement portion (51D) located on the side of the first longitudinal end (EX2) of the support arm (2), and a second longitudinal immobilization portion (511) located on the side of the second end (EX2 ') of the support arm (2); - a displacement axis (52) received in the L-shaped groove (51) and protruding outwardly of the support arm (2), - a tension spring (53), a first end of which is fixed to the suction system (3), and a second end is fixed to the axis of displacement (52). ), said stressing system (5) being configured so as to move from a state of disarray when the displacement axis (52) is in the longitudinal displacement portion (51D) of the L-shaped groove (51) to an armed state when the displacement axis (52) is in the longitudinal portion of the immobilization (511) of the L-shaped groove (51) and that the spring (53) is maintained in tension. 8. Device according to claim 7, wherein the support arm (2) has two flat flanks (21, 22) identical and arranged parallel to each other, a groove (51) L being formed in each side (21, 22). , the two L-shaped branches (51) being identical and arranged symmetrically with respect to a median plane (PM) of the support arm (2), and in which the displacement axis (52) is of such length as to extend between the two flanks (21, 22) of the support arm (2) and projecting from either side of the support arm (2) through each of the L-shaped branches (51). 9. Device according to any one of claims 1 to 8, wherein the support pad (4) comprises a armament. 10. A method of bonding a self-adhesive foil (F) against a wall (P), said self-adhesive foil (F) comprising a printed face (fi) and a tacky face (fa) protected by a protective film, said method comprising the steps: (a) supplying a device (1) for holding a self-adhesive foil (F) against a wall (P) according to one of claims 1 to 9, (b) placing the self-adhesive foil in position (F) on the wall, with the tacky face (fa) facing the wall (P), (c) fixing the second end (EX2 ') of the support arm (2) of the holding device (1) on a planar surface (S), belonging to or near said wall (P), through the interlocking of the suction system (3), (d) implementation of the stressing system (5) of the second longitudinal end ( EX2 ') of the support arm (2) of the holding device (1), so that the support pad (4) comes to press the self-adhesive sheet (F) against the wall (P), at a first end portion (EF) of the self-adhesive foil (F), (e) at least partially removing the protective film (PR) from the tacky surface (fa ) of said self-adhesive foil (F), from a second end portion (EF ') of the self-adhesive foil (F), (f) bonding of the self-adhesive foil (F) to said wall (P) according to the desired position.