EP2142059B1 - Element for fixing items to a wall, and method for fixing said element to a wall. - Google Patents
Element for fixing items to a wall, and method for fixing said element to a wall. Download PDFInfo
- Publication number
- EP2142059B1 EP2142059B1 EP08719845.3A EP08719845A EP2142059B1 EP 2142059 B1 EP2142059 B1 EP 2142059B1 EP 08719845 A EP08719845 A EP 08719845A EP 2142059 B1 EP2142059 B1 EP 2142059B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- attachment element
- attachment
- base
- flange
- 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.)
- Not-in-force
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/04—Towel racks; Towel rails; Towel rods; Towel rolls, e.g. rotatable
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/04—Towel racks; Towel rails; Towel rods; Towel rolls, e.g. rotatable
- A47K10/10—Towel racks; Towel rails; Towel rods; Towel rolls, e.g. rotatable characterised by being mounted on cabinets, walls, doors, or the like
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
- A47K10/32—Dispensers for paper towels or toilet-paper
- A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
- A47K10/38—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge
- A47K10/3836—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge with roll spindles which are supported at one side
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K2201/00—Details of connections of bathroom accessories, e.g. fixing soap or towel holder to a wall
- A47K2201/02—Connections to a wall mounted support
Definitions
- the present invention relates to an element for fixing items to a wall, or wall-attachment element, which element can be for instance a towel holder, a toilet-paper holder or another sanitary and furnishing accessory.
- the present invention also relates to a method of fixing said wall-attachment element to a wall.
- Articles such as towel holders or toilet-paper holders, including an attachment base and an item holding portion are currently known.
- the towel holding portion can be shaped as a rail, a hook or a frame. It is known fixing the attachment base to the wall of a room not only by means of screws, but also by sticking it through adhesive or double-adhesive films. Sticking the element to a wall is often preferable to fixing it by screws, since drilling the wall is not required.
- DE 102 13 924 discloses a wall-attachment element, according to the preamble of claim 1, comprising an attachment base and an item holding portion wherein the attachment base includes a rigid plate and an adhesive layer for adhering the wall-attachment element to a wall and wherein a thin layer of material, which has a non-elastic, easily deformable surface, e.g. a closed pore foam material, is provided between the rigid plate and the adhesive layer.
- a thin layer of material which has a non-elastic, easily deformable surface, e.g. a closed pore foam material
- EP 775,462 discloses a wall-attachment element comprising an attachment base and an item holding-portion wherein the attachment base includes a rigid pedestal and an adhesive agent layer and wherein a deformable sucking pad is provided between the rigid pedestal and the adhesive agent layer.
- the attachment base includes a flange made of a plate which is prearranged for getting deformed, due to the effect of the forces applied thereto by the adhesive member when the wall-attachment element is fixed onto the fixing wall, so that the flange adapts itself to possible irregularities and lack of planarity of the fixing wall, the overall stresses and the concentrations of detachment forces the adhesive is submitted to are reduced, and hence also the likelihood of detachment from the wall is reduced.
- Figs. 1 , 2 , 4 and 5 refer to a first embodiment of a wall-attachment element according to the present invention, generally denoted by reference numeral 1.
- Wall-attachment element 1 which is a towel holder, has two attachment bases 3 and an item holding portion 5, in turn comprising an item holding rail 7 and two spacing arms 9, intended to mechanically connect rail 7 to bases 3 while keeping rail 7 spaced apart from fixing wall PF ( Fig. 2 ).
- spacing arms 9 are made as two cylindrical pins
- item holding rail 7 consists of a substantially cylindrical or prismatic rod.
- Each base 3 is equipped, at its rear portion, with an adhesive member 11 allowing the same base to be stuck to a wall PF attachment element 1 is to be fixed on.
- attachment bases 3 include a flange 4, arranged to be fixed to the wall onto which wall-attachment element 1 is to be fixed, wherein the thickness of at least a major part of flange 4, that is at least 50% of the surface thereof, is substantially 1 mm or less.
- the thickness of flange 4, or at least of a major part of it is substantially 0.7 mm or less.
- the thickness of flange 4, or at least of a major part of it, is substantially 0.5 mm or less.
- flange 4 is made of metal plate, e.g. of stainless steel, steel or brass, possibly chrome-plated.
- Each said feature contributes to making attachment base 3 relatively flexible and deformable, thereby enabling flange 4, as well as base 3 itself, to adapt itself to the shape of wall PF it is fixed on, by matching the irregularities thereof.
- attachment base 3, coated with adhesive, is placed against the wall it is to be fixed to, it is possible to press base 3 itself at some areas, for instance by means of a finger or the tip of a stick, thereby locally and temporarily deforming said base thanks to its deformability and flexibility.
- the adhesive layer interposed between base 3 and the wall is compressed to a greater extent than by applying a uniform compression to base 3, and this improves distribution and holding of the same adhesive.
- peripheral edges of flange 4 are bent so as to increase overall height HTOT of attachment base 3, i.e., they are bent into a direction opposite to the direction in which the corresponding spacing arm 9 is directed. More particularly, peripheral edges 30 of flange 4 are bent so as to form a flare or bevel, preferably along the whole perimeter of flange 4.
- edges 30 form a flare inclined by an angle ⁇ , relative to the rest of flange 4, of 90° or less and more preferably of 45 - 50° or less. Flared or bevelled peripheral edges 30 have different functions.
- a first function is of aesthetic nature: indeed, the bevelling of edges 30 makes flange 4 appear thicker (by increasing overall apparent thickness HT of edge 30): for instance, tanks to the bevelling.
- a second function is stiffening the peripheral edge of flange 4.
- a third function is as follows.
- adhesive member 11 In order to manufacture wall-attachment elements such as towel holders or toilet-paper holders, generally a thick adhesive layer is desirably used as adhesive member 11, since the thicker the layer, the greater its capacity to adapt itself to irregularities and planarity errors of the wall it is fixed on.
- adhesive in the form of relatively spongy or generally soft ribbons or foils are often used.
- Flared or bevelled edge 30 formed by bending allows forming a chamber, under flange 4, where an even relatively thick layer, e.g. a layer with a thickness of 0.5 to 1 mm or more, of an adhesive 11 in the form or a ribbon or a foil can be located and hidden.
- height HC of the chamber under flange 4 can be in the range 0.3 to 2 mm ( Fig. 2 ).
- different values of HC can be chosen, depending on the thickness of adhesive member 11 or other requirements.
- Both the aesthetic appearance and the stiffness of flared or bevelled edge 30, as well as depth HC of the chamber for receiving adhesive member 11, can be determined with a certain freedom by the designer by varying for instance overall height HT of the bent portion ( Fig. 2 ).
- a fourth function of flared or bevelled edge 30 is related with accident prevention, since it prevents a user from hurting himself/herself for instance by passing his/her hands over the wall onto which wall-attachment element 1 is fixed.
- flared or bevelled edge 30 is that, should it be obtained by shearing the plate with the die punch approaching from the side of the concavity of base 3 (i.e. in the direction of arrow DP in Fig. 2 ), a subsequent deburring is not required, since shearing burrs are located on the side of the edge that will be turned towards wall PF.
- attachment base 3 has a drawn projection 32 in correspondence of the securing region of the corresponding spacing arm 9.
- drawn projection 32 is a frusto-conical, or generally flared projection, where a diameter DBMIN of the minor base, on which arm 9 abuts, can be smaller than the diameter of the corresponding spacing arm 9, whereas diameter DBMAX of the major base is greater than the diameter of the corresponding spacing arm 9 ( Fig. 2 ).
- Diameter DBMIN is preferably not smaller than half the diameter of spacing arm 9, and diameter DBMAX is preferably not smaller than 1.1 times the diameter of spacing arm 9. More preferably, diameter DBMAX is not smaller than 1.2 times the diameter of spacing arm 9.
- Drawn projection 32 confers a greater stiffness, in particular in respect of bending, to base 3 in the region near spacing arm 9, and it has been realised that this increases resistance to detachment from wall PF attachment element 1 is fixed on. Indeed, it has been observed that, when a force F ( Fig. 3 ) is applied to wall-attachment element 1, in the absence of drawn projection 32, a zone ZD of detachment of adhesive member 11 from wall PF is more easily created due to the higher flexibility of flange 4 near the region where arm 9 is secured, and such detachment zone ZD progressively widens until base 3 comes off wall PF. On the contrary, in the presence of drawn projection 32, initial detachment zone ZD starting the progressive detachment of base 3 is created upon occurrence of higher stresses F.
- each spacing arm 9 is secured to the corresponding base 3 eccentrically of the same base. This makes base 3 more resistant to the detachment from the wall, if the base is mounted onto the wall with the corresponding spacing arm 9 below the centre of base 3 itself (i.e., referring to Figs. 1 and 8 , below line LB passing through the centres of bases 3). Actually, by such an arrangement, the resistant forces applied by adhesive member 11 onto metal flange 4 of base 3 have a greater resultant lever arm.
- each spacing arm 9 is secured to the corresponding base 3 through a screw 13 ( Fig. 2 ).
- a screw 13 Fig. 2
- other types of threaded connections, or even non-threaded connections e.g., riveting, welding, gluing
- Each spacing arm 8 if made of plastic material, can even be co-moulded onto base 3 or, more generally, it can form a single integral piece with the base.
- Spacing arms 9 can be manufactured for instance by turning or hot forming, and bases 3 can be manufactured by cold forming (drawing and shearing).
- Adhesive member 11 may be for instance in the form of a piece of a foil of adhesive or double-adhesive tape, which is cut and glued or stuck to the back side of base 3. More generally, adhesive member 11 can comprise one or more adhesive elements that, when glued or stuck to base 3, already are in set state. Said adhesive elements, which herein are also referred to as "preformed adhesives", can in their whole substantially cover the whole base 3 when viewed plan (according to an embodiment not shown), or only part thereof, leaving portions with non-negligible extensions free (e.g. central space 15 in Figs. 2 and 4 ).
- preformed adhesive element(s) 11 can cover no more than four fifths, or three quarters or two thirds of or half the plan of a base 3.
- Such free portions with non-negligible extensions form spaces or chambers that can advantageously be filled with a suitable fluid adhesive 17, for instance silicone, before applying the attachment element onto wall PF.
- wall-attachment element 1 When wall-attachment element 1 is subsequently applied onto its assigned wall PF, preformed adhesive element(s) 11 immediately keep(s) attachment element 1 fixed to wall PF, until fluid adhesive 17 has set. Once fluid adhesive 17 has set, wall-attachment element 1 is very firmly stuck onto wall PF: actually, when using an adhesive to be applied in fluid condition, especially in case of silicone adhesives, the chamber under the flange and any other cavity, interstice or roughness between base 3 and wall PF, even of considerable thickness, generally can be easily filled. Moreover, use of adhesives that are to be applied in fluid condition and that, once set, remain in any case relatively elastic, enables to better absorb and resist to deformations of bases 3 during use.
- the preformed adhesive members consist of four punched pieces 11' that are shaped as segments of an annulus and are arranged so as to define therebetween gaps 15 through which excess fluid adhesive 17 can escape.
- base 3 is equipped with a single preformed adhesive member shaped as a complete annulus, without gaps 15.
- Item holding rail 7 can be secured to each spacing arm 9 as shown in Fig. 5 .
- each spacing arm 9 has a hole or a different seat 90
- each end of rail 7 has a rubber gasket 70 - in the example shown in Fig. 5
- an O-ring 70 fitted onto one end of rail 7 - and a suitable seat 71, which is formed on the rod-like member of rail 7 and where gasket 70 is received.
- Seat 71 is also referred to, in the present description, as "gasket seat” and is an annular groove in the example shown in Fig. 5 .
- the end of rail 7 is inserted into hole 90.
- the end of the rod of the rail for instance made of metal or plastics, is more rigid than gasket 70 and engages hole 90 with a certain clearance, whereas softer gasket 70 is interference fitted into the hole.
- item holding rail 7 if firmly, but not rigidly, secured to spacing arms 9, thereby enabling bases 3 to adapt themselves to the irregularities of wall PF onto which wall-attachment element 1 is applied. This improves adhesion of element 1 to the wall itself.
- connecting members 38 each of which can comprise for instance a jointed or elastic or articulated connection or simply a loose mechanical connection, so as to enable both bases 3" to adapt themselves to the irregularities of the wall they are fixed on, without generating stresses inside wall-attachment element 1"'.
- wall-attachment element 1'" can be equipped with a connecting member 40 located for instance at an intermediate, or even non-intermediate, portion of item holding rail 7".
- Connecting members 38 and 40 can include for instance a hinge or a ball joint having mechanical abutments limiting the permitted rotation of the connection parts.
- Fig. 7 shows another possible exemplary embodiment of an elastic connection that can be generally used for connecting an item holding rail or a spacer arm to an attachment base in a wall-attachment element according to the present invention. More particularly, such an elastic connection, generally denoted 38', can be applied for instance in the embodiments shown in Figs. 1, 2, 4 - 6, 8 - 12 .
- Elastic connection 38' comprises a layer or shim 42 of resilient material interposed between flange 4" of base 3'" and an item holding rail 7'" or a spacing arm 9'.
- item holding rail 7'" or spacing arm 9' are secured to flange 4" by means of a screw 44.
- the resilient material of layer or shim 42 is a material that is softer, and hence more easily deformable, than the materials of item holding rail 7'" or spacing arm 9': for instance, the material of layer or shim 42 can be a synthetic or natural elastomer, and it can be in the form of a washer.
- elastic connection 38' comprises an intermediate base 46, formed for instance as a second flange or a rigid washer and interposed between resilient layer or shim 42 and item holding rail 7'" or spacing arm 9'.
- Intermediate base 46 has the same stiffness as item holding rail 7'" or spacing arm 9', or a substantially similar stiffness, and such a size that it forms a supporting base wider than the cross-sectional size of item holding rail 7'" or spacing arm 9', and hence that base is capable of more uniformly distributing onto flange 4" the bending moments applied by item holding rail 7'" or spacing arm 9', thereby avoiding excessive deformations of flange 4".
- Fig. 8 shows a fourth embodiment of a wall-attachment element 1' according to the invention, including a single attachment base 3' that can have the features described above, a single spacing arm 9' and an item holding element 7' in the form of a hook or an open frame.
- element 1' can be used for instance as a towel holder or a toilet-paper holder.
- Fig. 9 shows a fifth embodiment of a wall-attachment element 1' according to the invention, where item holding element 7" is in the form of a closed frame.
- Fig. 10 concerns a sixth embodiment of a wall-attachment element according to the present invention, in which base 3' has a plurality of radial stiffening ribs 34, which allow conferring the desired stiffness, or flexibility, to base 3' with a still smaller thickness of the base itself, and hence with a saving of material.
- base 3 with a substantially axially symmetrical shape, is instead equipped with a plurality of concentric annular ribs 36, which allow conferring the desired flexibility to base 3' with a greater thickness of the wall of the base itself.
- the base can be equipped with stiffening ribs that are not necessarily concentric and that generally extend around the region where the spacing arm is secured.
- the flanges of attachment bases 3 can not only have a round shape, like in the previously described embodiments, but also a different shape, for instance triangular, square, polygonal, oval, lobate, etc. Moreover, the flanges can be hidden by a case or cover made of plastics, glass or other materials, having essentially the aesthetic function of adapting the wall-attachment element to the style of the room where it has to be installed.
Description
- The present invention relates to an element for fixing items to a wall, or wall-attachment element, which element can be for instance a towel holder, a toilet-paper holder or another sanitary and furnishing accessory.
- The present invention also relates to a method of fixing said wall-attachment element to a wall.
- Articles such as towel holders or toilet-paper holders, including an attachment base and an item holding portion are currently known. The towel holding portion can be shaped as a rail, a hook or a frame. It is known fixing the attachment base to the wall of a room not only by means of screws, but also by sticking it through adhesive or double-adhesive films. Sticking the element to a wall is often preferable to fixing it by screws, since drilling the wall is not required.
- Yet, a frequent drawback of known stuck towel holders or toilet-paper holders is that after a certain time they come off the wall they have been fixed on.
-
DE 102 13 924 discloses a wall-attachment element, according to the preamble ofclaim 1, comprising an attachment base and an item holding portion wherein the attachment base includes a rigid plate and an adhesive layer for adhering the wall-attachment element to a wall and wherein a thin layer of material, which has a non-elastic, easily deformable surface, e.g. a closed pore foam material, is provided between the rigid plate and the adhesive layer. - Similarly,
EP 775,462 - It is an object of the present invention to provide a wall-attachment element, such as a towel holder or a toilet-paper holder, which is less prone to come undesirably off the wall it is fixed on, than known towel holders or toilet-paper holders.
- Such object is achieved, according to the present invention, by a wall-attachment element having the features as claimed in
claim 1. - Since the attachment base includes a flange made of a plate which is prearranged for getting deformed, due to the effect of the forces applied thereto by the adhesive member when the wall-attachment element is fixed onto the fixing wall, so that the flange adapts itself to possible irregularities and lack of planarity of the fixing wall, the overall stresses and the concentrations of detachment forces the adhesive is submitted to are reduced, and hence also the likelihood of detachment from the wall is reduced.
- Further advantages afforded by the present invention will become apparent to the skilled in the art from the following detailed description of some particular and non limiting exemplary embodiments, given with reference to the accompanying schematic drawings.
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Fig. 1 shows a perspective view of a first embodiment of a wall-attachment element according to the present invention, with two attachment bases; -
Fig. 2 shows a cross-sectional side view of an attachment base and the relevant spacing arm of the wall-attachment element shown inFig. 1 ; -
Fig. 3 shows a side view of an attachment base and the relevant spacing arm of a prior art wall-attachment element; -
Fig. 4 shows a plan view of the rear face of the attachment base shown inFig. 2 ; -
Fig. 5 shows a view, partly in cross-section, of the connection region between a spacing arm and the item holding rail in the wall-attachment element shown inFig. 1 ; -
Fig. 6 shows a perspective view of a second embodiment of a wall-attachment element according to the present invention, with two attachment bases; -
Fig. 7 shows a side view, partly in cross-section, of a third embodiment of a wall-attachment element according to the present invention; -
Fig. 8 shows a perspective view of a fourth embodiment of a wall-attachment element according to the present invention, with one attachment base; -
Fig. 9 shows a perspective view of a fifth embodiment of a wall-attachment element according to the present invention, with one attachment base; -
Fig. 10 shows a front view of an attachment base of a sixth embodiment of a wall-attachment element according to the present invention; -
Fig. 11 shows a front view of an attachment base of a seventh embodiment of a wall-attachment element according to the present invention; -
Fig. 12 shows a cross-sectional side view, taken along section plane A - A, of the attachment base shown inFig. 11 . -
Figs. 1 ,2 ,4 and5 refer to a first embodiment of a wall-attachment element according to the present invention, generally denoted byreference numeral 1. Wall-attachment element 1, which is a towel holder, has twoattachment bases 3 and anitem holding portion 5, in turn comprising anitem holding rail 7 and twospacing arms 9, intended to mechanically connectrail 7 tobases 3 while keepingrail 7 spaced apart from fixing wall PF (Fig. 2 ). In the present exemplary embodiment, spacingarms 9 are made as two cylindrical pins, anditem holding rail 7 consists of a substantially cylindrical or prismatic rod. - Each
base 3 is equipped, at its rear portion, with anadhesive member 11 allowing the same base to be stuck to a wallPF attachment element 1 is to be fixed on. - In the exemplary embodiment shown in
Fig. 1 ,attachment bases 3 include aflange 4, arranged to be fixed to the wall onto which wall-attachment element 1 is to be fixed, wherein the thickness of at least a major part offlange 4, that is at least 50% of the surface thereof, is substantially 1 mm or less. - Preferably the thickness of
flange 4, or at least of a major part of it, is substantially 0.7 mm or less. - More preferably the thickness of
flange 4, or at least of a major part of it, is substantially 0.5 mm or less. - More preferably,
flange 4, or at least a major part of it, is made of metal plate, e.g. of stainless steel, steel or brass, possibly chrome-plated. - Each said feature contributes to making
attachment base 3 relatively flexible and deformable, thereby enablingflange 4, as well asbase 3 itself, to adapt itself to the shape of wall PF it is fixed on, by matching the irregularities thereof. - Examples of such irregularities in a wall are typically planarity errors and the lack of alignment of the tiles covering the wall. Such adaptation results on the one hand into a better aesthetical effect when wall-
attachment element 1 is secured to a wall, and, on the other hand, it allowsbase 3 to better and more uniformly adhere to the fixing wall, by generating lower stresses onadhesive member 11. - The aforesaid features allow obtaining a more effective sticking also due to the following reason: once
attachment base 3, coated with adhesive, is placed against the wall it is to be fixed to, it is possible to pressbase 3 itself at some areas, for instance by means of a finger or the tip of a stick, thereby locally and temporarily deforming said base thanks to its deformability and flexibility. At such areas of local deformation, the adhesive layer interposed betweenbase 3 and the wall is compressed to a greater extent than by applying a uniform compression tobase 3, and this improves distribution and holding of the same adhesive. - Advantageously, the peripheral edges of
flange 4 are bent so as to increase overall height HTOT ofattachment base 3, i.e., they are bent into a direction opposite to the direction in which thecorresponding spacing arm 9 is directed. More particularly,peripheral edges 30 offlange 4 are bent so as to form a flare or bevel, preferably along the whole perimeter offlange 4. - Preferably,
edges 30 form a flare inclined by an angle α, relative to the rest offlange 4, of 90° or less and more preferably of 45 - 50° or less. Flared or bevelledperipheral edges 30 have different functions. - A first function is of aesthetic nature: indeed, the bevelling of
edges 30 makesflange 4 appear thicker (by increasing overall apparent thickness HT of edge 30): for instance, tanks to the bevelling. aflange 4, formed from a 0,7 mm thick metal plate (i.e. thickness SL = 0.7 mm,Fig. 2 ), can appear as having the same thickness as asolid flange 4 formed from an unbent, 1.5 - 2 mm thick metal plate, while being considerably more lightweight and resilient. - A second function is stiffening the peripheral edge of
flange 4. A third function is as follows. In order to manufacture wall-attachment elements such as towel holders or toilet-paper holders, generally a thick adhesive layer is desirably used asadhesive member 11, since the thicker the layer, the greater its capacity to adapt itself to irregularities and planarity errors of the wall it is fixed on. In this respect, adhesive in the form of relatively spongy or generally soft ribbons or foils are often used. Flared orbevelled edge 30 formed by bending allows forming a chamber, underflange 4, where an even relatively thick layer, e.g. a layer with a thickness of 0.5 to 1 mm or more, of an adhesive 11 in the form or a ribbon or a foil can be located and hidden. - As an indication, height HC of the chamber under
flange 4 can be in the range 0.3 to 2 mm (Fig. 2 ). Clearly, of course, different values of HC can be chosen, depending on the thickness ofadhesive member 11 or other requirements. - Both the aesthetic appearance and the stiffness of flared or
bevelled edge 30, as well as depth HC of the chamber for receivingadhesive member 11, can be determined with a certain freedom by the designer by varying for instance overall height HT of the bent portion (Fig. 2 ). - A fourth function of flared or
bevelled edge 30 is related with accident prevention, since it prevents a user from hurting himself/herself for instance by passing his/her hands over the wall onto which wall-attachment element 1 is fixed. - A further advantage of flared or
bevelled edge 30 is that, should it be obtained by shearing the plate with the die punch approaching from the side of the concavity of base 3 (i.e. in the direction of arrow DP inFig. 2 ), a subsequent deburring is not required, since shearing burrs are located on the side of the edge that will be turned towards wall PF. - Advantageously,
attachment base 3 has a drawnprojection 32 in correspondence of the securing region of thecorresponding spacing arm 9. - In the exemplary embodiment shown in
Figs. 1 and2 , drawnprojection 32 is a frusto-conical, or generally flared projection, where a diameter DBMIN of the minor base, on whicharm 9 abuts, can be smaller than the diameter of thecorresponding spacing arm 9, whereas diameter DBMAX of the major base is greater than the diameter of the corresponding spacing arm 9 (Fig. 2 ). Diameter DBMIN is preferably not smaller than half the diameter ofspacing arm 9, and diameter DBMAX is preferably not smaller than 1.1 times the diameter ofspacing arm 9. More preferably, diameter DBMAX is not smaller than 1.2 times the diameter ofspacing arm 9. -
Drawn projection 32 confers a greater stiffness, in particular in respect of bending, tobase 3 in the region nearspacing arm 9, and it has been realised that this increases resistance to detachment from wallPF attachment element 1 is fixed on. Indeed, it has been observed that, when a force F (Fig. 3 ) is applied to wall-attachment element 1, in the absence of drawnprojection 32, a zone ZD of detachment ofadhesive member 11 from wall PF is more easily created due to the higher flexibility offlange 4 near the region wherearm 9 is secured, and such detachment zone ZD progressively widens untilbase 3 comes off wall PF. On the contrary, in the presence of drawnprojection 32, initial detachment zone ZD starting the progressive detachment ofbase 3 is created upon occurrence of higher stresses F. - Advantageously, each
spacing arm 9 is secured to thecorresponding base 3 eccentrically of the same base. This makesbase 3 more resistant to the detachment from the wall, if the base is mounted onto the wall with thecorresponding spacing arm 9 below the centre ofbase 3 itself (i.e., referring toFigs. 1 and8 , below line LB passing through the centres of bases 3). Actually, by such an arrangement, the resistant forces applied byadhesive member 11 ontometal flange 4 ofbase 3 have a greater resultant lever arm. - Advantageously, each
spacing arm 9 is secured to thecorresponding base 3 through a screw 13 (Fig. 2 ). In the alternative, other types of threaded connections, or even non-threaded connections (e.g., riveting, welding, gluing) can be used. Each spacing arm 8, if made of plastic material, can even be co-moulded ontobase 3 or, more generally, it can form a single integral piece with the base. - Spacing
arms 9 can be manufactured for instance by turning or hot forming, andbases 3 can be manufactured by cold forming (drawing and shearing). -
Adhesive member 11 may be for instance in the form of a piece of a foil of adhesive or double-adhesive tape, which is cut and glued or stuck to the back side ofbase 3. More generally,adhesive member 11 can comprise one or more adhesive elements that, when glued or stuck tobase 3, already are in set state. Said adhesive elements, which herein are also referred to as "preformed adhesives", can in their whole substantially cover thewhole base 3 when viewed plan (according to an embodiment not shown), or only part thereof, leaving portions with non-negligible extensions free (e.g.central space 15 inFigs. 2 and4 ). For instance, preformed adhesive element(s) 11 can cover no more than four fifths, or three quarters or two thirds of or half the plan of abase 3. Such free portions with non-negligible extensions form spaces or chambers that can advantageously be filled with a suitable fluid adhesive 17, for instance silicone, before applying the attachment element onto wall PF. - When wall-
attachment element 1 is subsequently applied onto its assigned wall PF, preformed adhesive element(s) 11 immediately keep(s)attachment element 1 fixed to wall PF, until fluid adhesive 17 has set. Oncefluid adhesive 17 has set, wall-attachment element 1 is very firmly stuck onto wall PF: actually, when using an adhesive to be applied in fluid condition, especially in case of silicone adhesives, the chamber under the flange and any other cavity, interstice or roughness betweenbase 3 and wall PF, even of considerable thickness, generally can be easily filled. Moreover, use of adhesives that are to be applied in fluid condition and that, once set, remain in any case relatively elastic, enables to better absorb and resist to deformations ofbases 3 during use. - In the example illustrated in
Figs. 2 and4 , the preformed adhesive members consist of four punched pieces 11' that are shaped as segments of an annulus and are arranged so as to definetherebetween gaps 15 through which excess fluid adhesive 17 can escape. However, in another embodiment, not shown,base 3 is equipped with a single preformed adhesive member shaped as a complete annulus, withoutgaps 15. -
Item holding rail 7 can be secured to eachspacing arm 9 as shown inFig. 5 . In such an embodiment, eachspacing arm 9 has a hole or adifferent seat 90, whereas each end ofrail 7 has a rubber gasket 70 - in the example shown inFig. 5 , an O-ring 70 fitted onto one end of rail 7 - and asuitable seat 71, which is formed on the rod-like member ofrail 7 and wheregasket 70 is received.Seat 71 is also referred to, in the present description, as "gasket seat" and is an annular groove in the example shown inFig. 5 . - The end of
rail 7 is inserted intohole 90. The end of the rod of the rail, for instance made of metal or plastics, is more rigid thangasket 70 and engageshole 90 with a certain clearance, whereassofter gasket 70 is interference fitted into the hole. In this manner,item holding rail 7 if firmly, but not rigidly, secured to spacingarms 9, thereby enablingbases 3 to adapt themselves to the irregularities of wall PF onto which wall-attachment element 1 is applied. This improves adhesion ofelement 1 to the wall itself. Actually, it has been realised that, in case of prior art towel holders with two bases, after some time, one of the bases remained stuck to wall PF, whereas the other one had partly or wholly detached, because of the twist and the internal stresses the sticking of two different bases on a wall almost always generates into item holding rail. - Such internal stresses, in prior art attachment elements, typically towel holders, are due both to the planarity errors in wall PF the attachment element is fixed on, and to the unavoidable tolerances and shape errors in attachment elements themselves.
- On the contrary, by the solution shown in
Fig. 5 , such twist and internal stresses can be avoided or at least considerably reduced. Clearly, such a result can be achieved also with other kinds of jointed, resilient or loose connections betweenitem holding rail 7 andbases 3, without thereby departing from the scope of the present invention. - For instance, in the embodiment shown in
Fig, 6 ,item holding rail 7" is mechanically connected to bothbases 3" through connectingmembers 38, each of which can comprise for instance a jointed or elastic or articulated connection or simply a loose mechanical connection, so as to enable bothbases 3" to adapt themselves to the irregularities of the wall they are fixed on, without generating stresses inside wall-attachment element 1"'. In addition or in alternative to connectingmembers 38, wall-attachment element 1'" can be equipped with a connectingmember 40 located for instance at an intermediate, or even non-intermediate, portion ofitem holding rail 7". Connectingmembers -
Fig. 7 shows another possible exemplary embodiment of an elastic connection that can be generally used for connecting an item holding rail or a spacer arm to an attachment base in a wall-attachment element according to the present invention. More particularly, such an elastic connection, generally denoted 38', can be applied for instance in the embodiments shown inFigs. 1, 2, 4 - 6, 8 - 12 . - Elastic connection 38' comprises a layer or
shim 42 of resilient material interposed betweenflange 4" of base 3'" and an item holding rail 7'" or a spacing arm 9'. In the illustrated embodiment, item holding rail 7'" or spacing arm 9' are secured toflange 4" by means of ascrew 44. The resilient material of layer orshim 42 is a material that is softer, and hence more easily deformable, than the materials of item holding rail 7'" or spacing arm 9': for instance, the material of layer orshim 42 can be a synthetic or natural elastomer, and it can be in the form of a washer. - Advantageously, elastic connection 38' comprises an
intermediate base 46, formed for instance as a second flange or a rigid washer and interposed between resilient layer orshim 42 and item holding rail 7'" or spacing arm 9'.Intermediate base 46 has the same stiffness as item holding rail 7'" or spacing arm 9', or a substantially similar stiffness, and such a size that it forms a supporting base wider than the cross-sectional size of item holding rail 7'" or spacing arm 9', and hence that base is capable of more uniformly distributing ontoflange 4" the bending moments applied by item holding rail 7'" or spacing arm 9', thereby avoiding excessive deformations offlange 4". -
Fig. 8 shows a fourth embodiment of a wall-attachment element 1' according to the invention, including a single attachment base 3' that can have the features described above, a single spacing arm 9' and an item holding element 7' in the form of a hook or an open frame. Such element 1' can be used for instance as a towel holder or a toilet-paper holder. -
Fig. 9 shows a fifth embodiment of a wall-attachment element 1' according to the invention, whereitem holding element 7" is in the form of a closed frame. -
Fig. 10 concerns a sixth embodiment of a wall-attachment element according to the present invention, in which base 3' has a plurality ofradial stiffening ribs 34, which allow conferring the desired stiffness, or flexibility, to base 3' with a still smaller thickness of the base itself, and hence with a saving of material. - In the embodiment shown in
Figs. 11 and 12 ,base 3", with a substantially axially symmetrical shape, is instead equipped with a plurality of concentricannular ribs 36, which allow conferring the desired flexibility to base 3' with a greater thickness of the wall of the base itself. In still further embodiments, not shown, the base can be equipped with stiffening ribs that are not necessarily concentric and that generally extend around the region where the spacing arm is secured. - The flanges of
attachment bases 3 can not only have a round shape, like in the previously described embodiments, but also a different shape, for instance triangular, square, polygonal, oval, lobate, etc. Moreover, the flanges can be hidden by a case or cover made of plastics, glass or other materials, having essentially the aesthetic function of adapting the wall-attachment element to the style of the room where it has to be installed. - The examples and the lists of possible variations in the present application are to be intended as non-exhaustive lists.
Claims (14)
- A wall-attachment element (1, 1') comprising:- an attachment base (3, 3', 3") equipped with an adhesive member (11, 17) arranged to fix the wall-attachment element (1, 1') to a fixing wall (PF); and- an item holding portion (7, 9; 9') arranged to have an item to be fixed to the fixing wall (PF) placed or hooked thereon; wherein the attachment base (3, 3', 3") has a flange (4, 4") on which the adhesive member (11, 17) is arranged, characterised in that said flange (4, 4") is made of a relatively flexible and deformable metal plate so as to adapt itself to possible irregularities and lack of planarity of the fixing wall (PF), due to the effect of the forces applied thereto by the adhesive member when the wall-attachment element is fixed onto the fixing wall (PF).
- The wall-attachment element (1, 1') as claimed in claim 1, wherein the flange (4) is made of one of the following materials: metal, steel, stainless steel, brass.
- The wall-attachment element (1, 1') as claimed in claim 1 or 2, wherein the flange has, over most of its extension, a thickness substantially of 1 mm or less, or of 0.7 mm or less, or of 0.5 mm or less.
- The wall-attachment element (1, 1') as claimed in one or more of claims 1 to 3, wherein the flange (4) includes a flared and/or bevelled and/or drawn peripheral edge (30).
- The wall-attachment element (1, 1') as claimed in one or more of claims 1 to 4, wherein the flange (4) includes a reinforcing projection (32), the item holding portion (7, 9, 9') is secured to the flange in correspondence of the reinforcing projection (32) and the reinforcing projection projects in the direction of the overall height (HTOT) of the flange itself so as to increase the bending resistance of the flange.
- The wall-attachment element (1, 1') as claimed in one or more of the preceding claims, wherein the attachment base (3, 3', 3") includes a plurality of stiffening ribs (34, 36).
- The wall-attachment element (1, 1') as claimed in one or more of the preceding claims, wherein the item holding portion (7, 9, 9') is secured to the attachment base (3, 3', 3") eccentrically of the base (3, 3', 3") itself.
- The wall-attachment element (1, 1') as claimed in one or more of the preceding claims, wherein the item holding portion (7, 9, 9') includes an element chosen out of the following group: an item holding rail (7), a hook-shaped element (7'), a frame (7").
- The wall-attachment element (1, 1') as claimed in claim 8, wherein the item holding portion (7, 9, 9') includes a spacing arm (9, 9') connecting the attachment base (3, 3', 3") to the item holding rail (7) and/or the hook-shaped element (7') and/or the frame (7") so as to space them apart from the attachment base.
- The wall-attachment element (1, 1') as claimed in one or more of the preceding claims, wherein the item holding rail (7) and the attachment base (3, 3') are joined through a jointed and/or articulated and/or flexible and/or loose connection (70, 71, 90).
- The wall-attachment element (1, 1') as claimed in claims 9 and 10, wherein the item holding rail (7) is equipped with:- a gasket (70); and- a rod, on which a gasket seat (71) arranged to receive the gasket (70) is formed;and wherein the spacing arm (9, 9') is equipped with a rail seat (90), arranged to receive and fasten the item holding rail (7) and the gasket (70), and wherein the gasket (70) is made of a substantially softer material than the rod of the item holding rail (7) and/or the spacing arm (9, 9'), and the rail seat (90) is interference coupled with the gasket (70) and is coupled with clearance with the portion of the item holding rail (7) onto which the gasket (70) is fitted.
- The wall-attachment element (1, 1') as claimed in one or more of the preceding claims, wherein the adhesive member (11, 17) includes a preformed adhesive (11'), in turn comprising a layer of adhesive material applied to the attachment base (3, 3', 3") already in set state.
- The wall-attachment element (1, 1') as claimed in claim 12, wherein the preformed adhesive (11') covers only part of the base (3, 3', 3"), leaving portions with non-negligible extension (15) free.
- A method of fixing a wall-attachment element (1, 1') to a fixing wall (PF), comprising the steps of:- providing a wall-attachment element (1, 1') as claimed in claim 13;- applying an adhesive substance (17) in fluid condition onto the face of the attachment base (3, 3', 3") onto which the preformed adhesive (11') is applied, in an area (15) of said face where the preformed adhesive (11') is absent;- making the adhesive substance (17) applied in fluid condition set after the wall-attachment element (1, 1') has been fixed to a fixing wall (PF).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO20070248 ITTO20070248A1 (en) | 2007-04-06 | 2007-04-06 | WALL MOUNTING ELEMENT, AND METHOD FOR FIXING THIS ELEMENT TO A WALL. |
PCT/IB2008/051131 WO2008122902A2 (en) | 2007-04-06 | 2008-03-26 | Element for fixing items to a wall, and method for fixing said element to a wall. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2142059A2 EP2142059A2 (en) | 2010-01-13 |
EP2142059B1 true EP2142059B1 (en) | 2016-07-20 |
Family
ID=39831480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08719845.3A Not-in-force EP2142059B1 (en) | 2007-04-06 | 2008-03-26 | Element for fixing items to a wall, and method for fixing said element to a wall. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2142059B1 (en) |
IT (1) | ITTO20070248A1 (en) |
WO (1) | WO2008122902A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10925417B2 (en) | 2014-01-22 | 2021-02-23 | Ccl Label, Inc. | Secure hold hook |
US20210310508A1 (en) * | 2016-08-26 | 2021-10-07 | 3M Innovative Properties Company | Adhesive mounting devices |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2803034B2 (en) | 1995-11-27 | 1998-09-24 | ホクメイ株式会社 | Holder and mounting method of holder |
KR200320919Y1 (en) * | 2000-09-13 | 2003-07-22 | 레오나드 란 | An adhesive sheet type holding device for mounting onto a wall |
DE10213924A1 (en) | 2002-03-28 | 2002-10-10 | Ver Zur Unterstuetzung Russisc | Adhering an object, eg a hook, to a surface, eg a wall, comprises applying an adhesive layer to the object and the wall, and contacting them by pressing together |
DE20309201U1 (en) * | 2003-06-11 | 2003-09-25 | Shang Yuan Co | Towel holder has one or more horizontal bars held on a vertical support via pivot mountings |
GB2426784B (en) * | 2005-06-01 | 2010-06-02 | Croydex Ltd | Structure having a mounting means |
-
2007
- 2007-04-06 IT ITTO20070248 patent/ITTO20070248A1/en unknown
-
2008
- 2008-03-26 WO PCT/IB2008/051131 patent/WO2008122902A2/en active Application Filing
- 2008-03-26 EP EP08719845.3A patent/EP2142059B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
ITTO20070248A1 (en) | 2008-10-07 |
WO2008122902A2 (en) | 2008-10-16 |
EP2142059A2 (en) | 2010-01-13 |
WO2008122902A3 (en) | 2009-03-19 |
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