WO2013050915A1

WO2013050915A1 - Attachment rose and method of fitting a handle to a door or window fitting

Info

Publication number: WO2013050915A1
Application number: PCT/IB2012/055205
Authority: WO
Inventors: Luigi BIGOLONI
Original assignee: MANITAL S.r.l.
Priority date: 2011-10-04
Filing date: 2012-09-28
Publication date: 2013-04-11
Also published as: ITBS20110139A1

Abstract

Attachment rose of a handle (2) to a door or window (50), comprising a plate (10) having a flat inner surface (14) facing towards the door or window, on which at least one elastic return element (18) for the return of the handle to a rest position, a limit stop plate (20) suitable for limiting the rotation of the handle and axial blocking means (22) for axially constraining said elastic return element and said limit stop plate to said coupling spindle when the handle is associated to the rose are positioned in a relation of axial superimposition. A peripheral abutting portion (14') of said flat inner surface (14) is suitable for abutting with the door or window. Since the space for the functional elements of the rose is made in the door or window, the plate may be of a minimal thickness.

Description

ATTACHMENT ROSE AND METHOD OF FITTING A HANDLE

TO A DOOR OR WINDOW FITTING

[0001] The present invention relates to an attachment rose of a handle to a door or window.

[0002] As is known, the rose of a handle group is a device in the form of a plate which is attached to the door or window to axially constrain the handle to a rotation pin of the lock, usually a square section pin, joined to the lock of the door or window. To make the handle integral in rotation with the pin of the lock, the handle comprises a hollow spindle suitable for receiving one end of the pin in a shaped coupling.

[0003] To attach the handle to the rose, said spindle usually has an annular grove which an axial blocking means acting in conjunction with the rose, for example a Seeger, engages in.

[0004] In some embodiments, an elastic return element such as a coil spring, suitable for returning the handle to a rest position, is provided inside the rose. In this case, the rose further comprises a limit stop plate which, constrained to the spindle of the handle by the Seeger, for example by means of radial keys engaging corresponding recesses of the spindle, limit the rotation of the handle. [0005] The assembly composed of the elastic return element, the limit stop plate and the Seeger, superimposed with each other, determines the thickness of the attachment rose. In fact, as well as permitting the connection of the handle to the door or window, the rose also acts as a housing of such functional elements.

[0006] Currently, however, in the furnishings sector there is an increasingly extreme demand for minimalist forms which tend to conceal for example certain functional parts of an object. This aesthetic requirement conflicts, in the case of handles for door and windows, with the use of a rose which, however much one tries to harmonise with a minimalist design of the handle, . significantly influences the overall appearance of the door or window.

[0007] The purpose of the present invention is to propose an attachment rose of a handle to a door or window which, while offering the same functions as a traditional rose, has a greatly reduced impact on the overall structure of the door or window.

[0008] Such purpose is achieved by a rose according to claim 1 and by an assembly method according to claim 10. The dependent claims describe preferred or advantageous embodiments of the rose.

[0009] The characteristics and advantages of the rose and assembly method according to the invention will be evident from the description below, made by way of non- limiting examples, of its preferred embodiments with reference to the appended drawings, wherein:

[0010] - Figure 1 is an exploded perspective view of the rose according to the invention;

[0011] - Figure 2 shows the rose assembled; .

[0012] - Figures 3 and 3a show, in a perspective view and in an axial cross-section, a milling cutter for making a rose seat in the door or window; and

[0013] - Figures 4, 4a, 4b and 4c show the same number of steps of the method of assembly of a handle to a door or window.

[0014] In said drawings, reference numeral 1 globally denotes a rose according to the invention suitable for connecting a handle 2 comprising a grip 3 and a coupling spindle 4 which extends from said grip 3 to a window or door 50. Said spindle 4 has an axial cavity 5 suitable for receiving in a shaped coupling, that is so as to be joined in rotation, a rotation pin 51, for example with a square cross-section, of a lock 52 of the door or window 50.

[0015] In the rest of the description, "axial" direction will be understood to mean a direction parallel to the axis of the square pin, that is, perpendicular to the surface of the door or window 50 which the rose 1 is fitted on.

[0016] The rose 1 comprises a plate 10, that is, a plate- shaped body, traversed by an axial -aperture 12 for the passage of the spindle 4 of the handle 2. The plate 10 has a flat inner surface 14, that is facing the door or window, and an outer surface 16, that is facing the grip of the handle. An elastic return element 18 for the return of the handle to a rest position, a limit stop plate 20 suitable for limiting the rotation of the handle and blocking means 22 for axially constraining said elastic return element 18 and said limit stop plate 20 to the coupling spindle 4 when the handle is associated to the rose are positioned on the flat inner surface 14. superimposed with each other.

[0017] For example, the elastic return element 18 comprises a coil spring having an outer end 18' suitable for being constrained to a peg 24 which extends from the flat inner surface of the plate, and an inner end 18" suitable for being constrained to the spindle 4 of the handle. In one embodiment, the limit stop plate 20 is fitted with two outer radial protrusions 20', suitable distanced from each other, suitable for co-operating alternately with said peg _.24 of the plate to stop the rotation of the handle. For its angular attachment* to the spindle 4 of the handle, the limit stop plate 20 is for example, provided with two radial keys 21, facing towards the rotation axis, suitable for engaging corresponding recesses 4" made in the spindle 4.

[0018] In one embodiment, the blocking means 22 of the return element 18 and the limit stop plate 20 comprise a Seeger suitable for being fitted in an annular groove 4 ' of the coupling spindle 4.

[0019] Innovatively, a peripheral portion 14' of said flat inner surface 14 is suitable for abutting with the door or window. In particular, said peripheral portion 14' is a,n area of the flat inner surface 14, for example an annular shape, which surrounds the functional elements described above and which extends as far as the outer rim of the plate 10. In a preferred embodiment, said peripheral portion 14' of the flat inner surface is suitable for abutting with the outer surface of the door or window 50. As will be explained below, such embodiment of the rose is made possible by embedding the functional elements of the rose, that is the elastic return element 18, the limit stop plate 20 and the blocking means 22, as well as the distal portion of the coupling spindle 4 of the handle projecting from the flat inner surface of the plate, in the thickness of the door or window itself, by making a special rose seat 100.

[0020] As a result, the overall thickness of the rose, that is to say its height in relation to the outer surface of the door or window, is given, in practice, by the thickness of the plate 10. Unlike the prior solutions, in other words, the rose does not act as container of the functional elements associated with it, such function being delegated to the door or window whi.ch the rose is fitted on. It is clear that the thickness of the plate may be chosen so as to be considerably less than the thickness of the assembly consisting of the elastic return element, the limit stop plate and the blocking means. For example, such thickness is the minimum needed to permit the preferably snap-fastening of a finishing element 60, which will be described further below to the rose. In a preferred embodiment, the thickness of the plate is about 2mm.

[0021] In a preferred embodiment, holes 26 are made in the plate 10 for the passage of attachment screws 27 of the rose to the door or window. For example, said holes 26 are made in the flat peripheral portion 14' abutting with the door or window. In one advantageous embodiment, in fact, said attachment screws 27 screw directly into the material the door or window is made of, without the need for additional elements placed between the rose and the door or window, thereby making the attachment of the handle firmer, simpler and faster to perform. [0022] In one embodiment, a guide collar 30 suitable for being inserted in a corresponding rose seat 100 made in the door or window extends from the flat inner surface 14 of the plate. Said guide collar 30 surrounds the functional element of the rose and delimits, with the outer rim of the plate, the peripheral portion 14' abutting with the door or window. In the preferred case in which the rose is made in plastic material, the guide collar 30 also acts as a strengthening element of the plate 10.

[0023] According to a preferred embodiment, the rose comprises a finishing element 60, hereinafter called "rose cover", suitable for being fastened to the visible surface of the plate 10 when attached to the door or window.

[0024] Preferably, said rose cover 60 is suitable for being snap-fastened to the plate 10 of the rose. In addition, in order to conceal the attachment screws 27 to the door or window, the rose cover 60 is suitable for being fastened to the plate after it has been screwed to the door or window.

[0025] In a, preferred embodiment, the rose cover snap fastens to the lateral surface of the plate 10. For example, radial teeth 32 are made in said side wall of the plate suitable for snap-engaging an undercut 61 made in the rose cover.

[0026] In a preferred embodiment, in order to permit the rose cover 60 to completely cover the outer surface 16 of the plate 10 and at the same time be fastened to said plate after this has been attached to the handle 2 and therefore to the door or window 50, the rose cover 60 comprises, in relation to the rose axis, an inner portion 62 and an outer portion 64, made as two separate elements but suitable to form a continuous covering surface when attached to the plate. The inner portion 62 is suitable for being fastened to a corresponding inner portion of the plate which surrounds the axial aperture 12but which does not include holes 26 for the passage of the attachment screws to the door or window. This way, said inner portion of the rose cover can be fastened to the plate before■ it is connected to the handle and then to the door or window. As a result, advantageously, said inner portion 62 of the rose cover extends around a first axial hole 63 of a diameter substantially par with that of said axial aperture 12, so as to completely cover an inner portion of the plate which surrounds the axial aperture 12. The outer portion 64 of the rose cover extends around a second axial hole 65 of a breadth suitable for permitting said outer portion 64 to be threaded onto the grip 3, whatever the shape thereof, and thus to be fastened to the plate 10 with the handle 2 attached to the rose 1.

[0027] In one embodiment, the inner portion 62 of the rose cover is provided with teeth 62 snap or press-coupling to the rim delimiting the axial aperture 12 of the plate 10.

[0028] The method of fitting the handle equipped with the rose according to the invention envisages making a rose seat 100 around the hole 53 for the rotation pin 51 of the lock in the door, or window 50, suitable for at least partially housing the rose 1. In particular, said rose seat 100 has a depth at least par with the thickness of the assembly comprising at least the elastic return element 18, the limit stop plate 20 and the ^' blocking means 22. In the embodiment shown, said thickness coincides substantially with the height of the guide collar 30. In addition, the rose seat 100 has a breadth, that is diameter in the preferred case of a circular r

seat, at least par with the circumference which circumscribes all the elements projecting axially from said flat inner surface. In the embodiment shown, the diameter of 'the rose seat 100 coincides substantially with the outer diameter of the guide collar 30.

[0029] In the case of use of the rose seat 60 in two pieces described above, the inner portion 62 of the rose cover is fastened to the plate 10 of the rose 1. [0030] The rose is then fitted on the spindle 4 of the handle, attaching to said spindle 4 the elastic return element 18 and the limit stop plate 20, by means of the axial blocking means 22.

[0031] The handle 2 is then positioned on the door or window 50, in such a way that the peripheral abutting portion 14 of the plate abuts with the door or window, preferably with the outer surface thereof.

[0032] In positioning the handle on the door or window, the rotation pin 51 of the handle, which is found inserted in the relative hole 53 in the lock, goes into the cavity 5 of the coupling spindle 4.

[0033] Alternatively, as shown in figures 4-4c, the rotation pin 51 is first inserted and fastened in the coupling spindle 4 of the handle, and then inserted in the relative hole 53 in the lock.

[0034] At this point, the rose can be fastened to the door or window, for example by screwing.

[0035] Advantageously, the rose seat 100 can be made at the moment of fitting the handle to the door or window providing the installer with a tool suitable for machining the door or window. For example, said tool is a milling cutter .200 having at least one frontal cutting edge 202 rotating around a rotation axis of the milling cutter. Advantageously, the milling cutter 200 further comprises an axial., centring pin 204 suitable for being inserted with a shaped coupling in the hole 53 for the lock rotation pin and around which said frontal cutting edge 202 is free to rotate. Thanks to the use of such centring pin 204 of the milling cuter, a rose seat 100 perfectly coaxial with the hole 53 for the rotation pin 51 of the handle is obtained. For example, the rotation pin 51 itself can be used as centring pin 204.

[0036] In a preferred embodiment, the milling cutter 200 also has a lateral processing surface 26 suitable for finishing the side wall of the rose 100, which will act as guide for the insertion of the rose in the seat, in particular when fitted with the guide collar.

[0037] It is to be noted that the lateral processing surface 206 of the milling cutter extends axially from a milling cutter body 208 which defines with said lateral surface an annular abutment shoulder 210 which determines the depth of the rose seat 100.

[0038] In the case of using the rose cover in two pieces described above, after the handle has been attached to the door or window, the outer portion 64 of the rose cover is threaded onto the grip 3 and attached to the plate 10.

[0039] As a result, using a particularly rapid, safe and easy assembly method for the installer, a rose can be used which projects imperceptibly from the surface of the door or window, for example by only 2mm, which is firmly attached to the door or window inasmuch as screwed directly to the material which the door or window is made of, and which includes in any case all the elements needed to permit control of the rotation of the handle. In addition, such rose can also be completely covered with a covering element which among things permits concealment of the attachment means to the door or window.

[0040] Thanks to the use of a rose cover which gives the rose the desired appearance, the rose can be made in any material, preferably a plastic material. In addition, the rose can be made of any shape or size.

[0041] A person skilled in the art may make modifications and adaptations to the embodiments of the rose according to the invention, replacing elements with others functionally equivalent so as to satisfy contingent requirements, while remaining within the sphere of protection of the following claims. Each of the characteristics described as belonging to a possible embodiment may be realised independently of the other embodiments described.

Claims

1. Attachment rose of a handle (2) to a door or window (50), where said handle comprises a spindle (4) for coupling to a rotation pin (51) of a lock (52) of the door or window, the rose comprising a plate (10) traversed by an axial aperture (12) for the passage of the spindle of the handle and having a flat inner surface (14) facing towards the door or window, where at least one elastic return element (18) for the return of the handle to a rest position, a limit stop plate (20) suitable for limiting the rotation of the handle and axial blocking means (22) for axially constraining said elastic return element and said limit stop plate to said coupling spindle when the handle is associated to the rose, are positioned on said flat inner surface in a relation of axial superimposition, characterised by the fact that a peripheral abutting portion (14' ) of said flat inner surface (14) is suitable for abutting against the door or window.

2. Rose according to claim 1, wherein said plate (10) has an axial thickness considerably inferior to the thickness of the assembly comprising at least the elastic return element (18), the limit stop plate (20) and the blocking means (22) .

3. Rose according to claim 1 or 2, wherein attachment holes (26) are made in said plate (10) for the passage of attachment screws (27) of the rose to the door or window.

4. Rose according to any of the previous claims, comprising a rose cover (60) suitable for being fastened to the visible surface of the plate when attached to the door or window.

5. Rose according to the previous claim, wherein said rose cover (60) is suitable for being snap-fastened to the plate of the rose.

6. Rose according to the previous claim, wherein the plate (10) is suitable for abutting with the outer surface of the door or window and has a side wall having a minimum thickness needed to permit a snap coupling of the rose cover to said side wall.

7. Rose according to the previous claim, wherein radial teeth (32) are made in said side wall of the plate suitable for snap-engaging an undercut (61) made in the rose cover.

8. Rose according to claim 7, wherein the rose cover comprises an inner portion (62) suitable for being fastened to a corresponding inner portion of the plate which surrounds the axial aperture (12), said inner portion. of the rose cover having a first axial hole (63) of a diameter substantially par with that of said ^'axial aperture (12), said outer portion (64) of the rose cover having a second axial hole (65) suitable for permitting said outer portion to be fastened to the plate with the handle attached to the rose.

9. Rose according to any of the previous claims, wherein a guide collar (30) extends from the flat inner surface (14) of the plate defining, with the outer rim of the plate (10), the peripheral abutting portion (14') and which is suitable for being inserted in a corresponding rose seat (100) made in the door or window.

10. Method of fitting a handle to a door or window, where said handle comprises a spindle for coupling to a rotation pin of a lock of the door or window and where a rose according to any of the previous claims is associated to said handle, comprising the steps of :

- fitting the rose on the handle,

- making in the door or window a rose seat suitable for at least partially housing the rose around the hole for the rotation pin of the lock, said rose seat having a depth at least par with the assembly comprising at least one elastic return element, the limit stop plate and the axial blocking means, and a breadth at least par with the circumference which circumscribes said assembly;

- positioning the handle on the door or window, in such a way that the peripheral abutting portion of the flat inner surface of the plate abuts against the door or window ;

- attaching the rose to the door or window.

11. Method according to the previous claim, wherein the rose seat is made by machining the door or window with a milling cutter having at least one frontal cutting edge rotating around a rotation axis of the milling cutter, said milling cutter further comprising an axial centring pin suitable for being inserted with a shaped coupling in the hole for the lock pin and around which said frontal cutting edge is free to rotate.

12. Method according to claim 10 or 11, "wherein the attachment of the rose to the door or window is performed by screwing the plate directly to the door or window.

13. Method according to any of the claims 10-12, further comprising a step of fastening a rose cover to the rose.

14. Method according to the previous claim, wherein an inner portion of the rose cover is fastened to the rose before the assembly of the latter to the spindle of the handle, and wherein an outer portion of the rose cover is fastened to the rose after attaching the handle to the door or window, said outer portion of the rose cover being inserted on the grip of the handle.