EP4194648A1

EP4194648A1 - Handle for doors and windows

Info

Publication number: EP4194648A1
Application number: EP21746504.6A
Authority: EP
Inventors: Juan Carlos FERNÁNDEZ PADRON
Original assignee: Sistemas Tecnicos del Accesorio y Componentes SL
Current assignee: Sistemas Tecnicos del Accesorio y Componentes SL
Priority date: 2020-08-07
Filing date: 2021-06-01
Publication date: 2023-06-14
Also published as: ES1260354Y; ES1260354U; WO2022029344A1

Abstract

The present invention relates to a handle for doors and windows suitable for a wide set of profiles of different widths and opening types, without hindering the operation or aesthetics of the handle, ensuring the correct positioning of a rotation shaft in an initial clipping situation. The handle is intended to be linked to a transmission mechanism (1) arranged on the inside of a profile (2) equipped with a flange (4) comprising a die-cut or machining (3), wherein the handle comprises a lever (5) intended to be arranged on the outside of the profile (2), a rotation shaft (6), a base (9), an anchor plate (11), a retaining bushing (13) that is partially housed in the base (9) and a compressible clipping element (49) that in an assembly situation is housed in the groove (15) in a decompressed position and retains the rotation shaft (6) in a longitudinal direction.

Description

OBJECT OF THE INVENTION

The present invention relates to a handle for doors and windows of the technical sector of the manufacture of windows or doors and ironwork thereof. More specifically, the object of the invention is a handle that encompasses a series of relative improvements that enable the frontal coupling of a base part together with a lever and a rotation shaft to a flange of a profile and to an anchor plate housed on the inside of the profile.
The configuration of the handle enables the use of said handle in a wide set of profiles of different widths and opening types, without hindering the operation or minimalist aesthetics of the handle, especially in PVC profiles. In addition, the correct positioning of the rotation shaft is ensured in an initial clipping situation.

BACKGROUND OF THE INVENTION

Currently, manually operated handles to transmit the movement of rotation to the internal mechanisms of the system are known, whether they are transmission boxes in the case of handles, transmission casings in the case of cremones, etc.
The rotational movement transmitted by the handle is transformed into a translational movement by mechanisms which can be both inside the profile in the form of a transmission box, and in the base of the handle in the form of a cremone, normally with rack and pinion systems.
However, handles which do not have a base that are known today are limited to a given number of window profiles, since in the various European channel profiles in which said handles are housed, the distance between the centre of the channel wherein the mechanism of the handle is housed and the flange of the profile defining the outer portion of the door or window sash varies, such that said known handles sometimes cannot be assembled in an already existing profile.
Likewise, handles which have the base outside the profile present the drawback that the user comes in contact with the base of said handle when opening or closing said handle, making said operation uncomfortable, also making said base unsuitable if minimalist aesthetics are sought. Furthermore, said mechanisms are very complex, with high production times and material costs.
Handles for doors and windows are also known comprising a lever, a transmission mechanism arranged inside the profile of the door or window sash, and an anchor plate part arranged between a flange of the profile of the sash defining the outer portion of the door or window sash and the transmission mechanism for adapting the handle to different widths of the profile of the door or window sash, wherein said anchor plate part is able to laterally couple to the profile together with the transmission mechanism.
The main drawback of all the previously explained systems is that the final clipping position always depends on the standard thickness of the aluminium profiles. All the solutions of the state of the art depend on the thickness of the profiles and cannot be used in PVC door or window profiles that have another range of dimensions completely different from that of aluminium profiles.

DESCRIPTION OF THE INVENTION

The present invention aims to solve the aforementioned problems. More specifically, the invention involves a handle for doors and windows intended to be linked to a transmission mechanism arranged on the inside of a profile, of a door or window sash, equipped with a flange comprising a die-cut. The handle comprises a lever intended to be arranged on the outside of the profile, a rotation shaft limited by a perimeter surface equipped with a coupling end fastened to the lever and a free end intended to be coupled to the transmission mechanism and transmit a rotational movement from the lever to the transmission mechanism.
The handle comprises a base intended to be partially housed in the die-cut equipped with a central base cavity that houses the rotation shaft, and a first outer face facing the lever and a first inner face, an anchor plate intended to be coupled to the transmission mechanism and be arranged on the inside of the profile and which is linked to the base equipped with a central anchor plate cavity that partially houses the rotation shaft.
The handle additionally comprises a retaining bushing that is partially housed in the base part in the vicinity of the first inner face and wherein the bushing is able to rotate and is equipped with a second through cavity of complementary shape to the rotation shaft and that partially houses the rotation shaft and a radial groove that extends from the second cavity. Lastly, the handle comprises a compressible clipping element linked to the perimeter surface which, in an assembly situation, is housed in the groove in a decompressed position and retains the rotation shaft in a longitudinal direction.
Thanks to the configuration of the handle and the elements thereof, it is achieved that the retention position of the handle never depends on the thickness of the profiles and the use thereof can be extended to PVC door or window profiles that have another range of dimensions completely different from that of standard aluminium profiles. Thus, it is not limited by the type of profiles, this invention being especially recommended for assembly on PVC profiles. Thus, the handle of the present invention has important modifications so that it can be assembled in a wider range of profile and opening types, not being limited to European-type profiles and specially developed for PVC profiles.
Preferably, the anchor plate is assembled on the transmission mechanism before assembling it on the sash profile, the assembling being quicker and easier, and subsequently, the base is assembled frontally. With the anchor plate part thus configured, the transmission mechanism is independent of the handle, whereby the handle can be assembled in any standard transmission mechanism on the market. Preferably, the fastening base part has a frontal assembly on the profile, such that the retention position in the insertion of the rotation shaft on the fastening base mechanism is a known position and it only depends on the design of the device by the manufacturer, always independent of the thickness of the profiles or the sash transmission mechanisms used.
More specifically, the handle comprises a fastening cover that defines a first through cavity that houses the rotation shaft and is equipped with a second outer face fastened to the first inner face of the base and the base comprises a recess extending from the first inner face and comprises a diameter greater than the cross section of the first cavity, wherein the retaining bushing is housed in the recess. In this way, it is ensured that the bushing is retained in a longitudinal direction of the base while maintaining its ability to rotate.
The perimeter surface comprises a housing and the clipping element is partially housed in the housing. Thus, when the clipping element is inserted into the central base cavity, the clipping element is compressed by the surface that defines the central base cavity, and once the height of the groove has been reached, the clipping element is able to expand being housed in the groove. The clipping element preferably consists of a spring housed in the housing and fastened at one of the two ends thereof to the rotation shaft and a pin fastened to an opposite end.
Preferably, the retaining bushing has a first tubular protrusion, which borders the second cavity and is housed in the central base cavity such that it is more centred with respect to the central base cavity and unwanted play and deviation are avoided. In the same way, the tubular bushing comprises a tubular projection that extends in the opposite direction to the first tubular protrusion and borders the second cavity wherein the tubular projection is housed in the first cavity of the cover, centring the tubular bushing with respect to the cover.
The cover comprises a first indentation extending radially from the first cavity and the base comprises a second indentation facing the first indentation which extends radially from the recess; thus, if the clipping element is to be unclipped, the insertion of a fine tip that presses the clipping element compressing it and enabling the extraction thereof through the central base cavity is facilitated.
Preferably, the anchor plate can comprise two lateral anchor plate through orifices and the base comprises two lateral base through orifices and the handle comprises at least two longitudinal fastening elements housed in respective lateral orifices that attach the anchor plate and the base and press them against the flange of the profile, the base and the anchor plate being attached to the flange of the profile, and therefore the transmission mechanism since the anchor plate is attached thereto.
The first inner face of the base can comprise two second tubular protrusions coaxial to the lateral base orifices, and the cover comprises lateral fastening orifices that house the tubular protrusions so as to ensure a correct attachment between cover and base, which preferably is by riveting.
Additionally, the handle can comprise a positioning bushing linked to the first outer face equipped with a central bushing cavity of complementary shape to the rotation shaft and the handle comprises an elastic element linked to the positioning bushing and to the lever.

BRIEF DESCRIPTION OF THE DRAWINGS

As a complement to the description provided herein, and for the purpose of helping to make the features of the invention more readily understandable, in accordance with a preferred practical exemplary embodiment thereof, said description is accompanied by a set of drawings constituting an integral part of the same, which by way of illustration and not limitation, represent the following:

Figure 1 shows an exploded perspective view of the handle in an intermediate assembly situation in a profile.
Figure 2 shows an exploded, detailed perspective view of the cover, retaining bushing and the base.
Figure 3 shows an exploded perspective view of a handle for doors and windows.
Figure 4 shows a perspective view of the assembled handle for doors and windows.
Figure 5 shows a longitudinal cross-sectional view of the assembled handle for doors and windows.

PREFERRED EMBODIMENT OF THE INVENTION

Figure 1 shows an exploded perspective view of the handle for doors and windows in an intermediate assembly situation in a profile (2), and a transmission mechanism (1). The handle is linked to the transmission mechanism (1) arranged on the inside of a profile (2) of a door or window sash wherein the profile (2) is equipped with a die-cut or machining (3) on the outer surface (33) of a flange (4) of the profile (2). Specifically, the transmission mechanism (1) is partially housed in an inner channel (37) of the profile (2).
The handle comprises a lever (5) intended to be on the outside of the profile (2) so that a user can grasp it and rotate it. Likewise, the handle comprises a rotating shaft (6) equipped with a coupling end (7) fastened to the lever (5) and a free end (8) intended to be coupled to the transmission mechanism (1) and transmit a rotational movement of the lever (5) to the transmission mechanism (1). Specifically, the free end (8) is partially housed in a central transmission mechanism cavity (36) that has a complementary shape to the rotation shaft (6). The handle also comprises a base (9) intended to be partially housed in the die-cut or machining (3) equipped with a central base cavity (10), which houses the rotation shaft (6), and a first outer face (31) housed in the central lever cavity (44) and a first inner face (26). In addition, the handle has an anchor plate (11) intended to be coupled to the transmission mechanism (1) and be arranged on the inside of the profile (2) and linked to the base (9) and the anchor plate (11) is equipped with a central anchor plate cavity (12) that partially houses the rotation shaft (6).
The handle additionally comprises a cover (14) linked to the first inner face (26) of the base (9) between which a recess (27) is defined that houses a retaining bushing (13) able to rotate, equipped with a radial groove (15). In addition, the handle comprises a clipping element (49) linked to the perimeter surface (21) of the rotation shaft (6) which, in an assembly situation, is housed in the groove (15) in a decompressed position and retains the rotation shaft (6) in a longitudinal direction. Thus, the retaining bushing (13) is partially housed in the base part (9) in the vicinity of the first inner face (26) able to rotate and retained by the cover (14). This set of parts is frontally assembled on the sash profile (2), a clipping dimension being determined for the clipping element (49) associated with the rotation shaft (6).
The anchor plate (11) comprises two lateral anchor plate orifices (23) and the base (9) comprises two lateral base orifices (24) and the handle comprises at least two longitudinal fastening elements (25) housed in respective lateral orifices (23, 24) that attach the anchor plate (11) and the base (9) and press them against the flange (4) of the profile (2).
These fastening elements (25) are preferably threaded screws and the lateral orifices (23, 24) are also threaded so that they carry out the movement of the anchor plate (11) and the base (9) in the longitudinal direction defined by the rotation shaft (6), moving towards the flange (4) of the profile until the flange (4) is firmly retained. Moreover, the transmission mechanism (1) comprises two lateral transmission orifices (52) that house said fastening elements (25)
The anchor plate (11) comprises a protrusion (43) that extends from an outer face that is anchored to the inner wall of the flange (4) of the sash profile (2) when the fastening elements (25) are tightened.
Figure 2 shows an exploded, detailed perspective view of the retaining bushing (13), the cover (14) and the base (9), according to the present invention. The fastening cover (14) defines a first through cavity (18) that houses the rotation shaft (6) and is equipped with a second outer face (47) that is fastened to the first inner face (26) of the base (9). The recess (27) that preferably extends from the first inner face (27) of the base (9), in another embodiment being able to be defined in the second outer face (47) of the cover (14), and comprises a larger diameter than that of the first cavity (18). The retaining bushing (13) is able to rotate and is housed in the recess (27), the retaining bushing (13) being of a larger diameter than the first cavity (18) such that it is retained between the cover (14) and the base (9), and is equipped with a second through cavity (17) of complementary shape to the rotation shaft (6) and that partially houses the rotation shaft (6) and a radial groove (15) that extends from the second cavity (17).
In an assembly situation, the cover (14) is fastened on the first inner face (26) of the base (9), the retaining bushing (13) able to rotate with the rotation shaft (6) remaining in between with respect to the base (9) and the cover (14). Moreover, the rotation shaft (6) has the clipping element (49) that when inserted through the central base cavity (10) contracts by contact with the surface that surrounds the central base cavity (10) and the retaining bushing (13) expands through the through groove (15) retaining the rotation shaft (6) and therefore the lever (5) with respect to the base (9) in a longitudinal direction. Due to this configuration, the initial clipping position is always known and can be modified during production by the manufacturer, without depending on each type of profile (2).
In turn, the retaining bushing (13) comprises a first tubular protrusion (50), which borders the second cavity (17) and is housed in the central base cavity (10) and a tubular projection (51), which extends in the opposite direction to the first tubular protrusion (50) and borders the second cavity (17), wherein the tubular projection (51) is housed in the first cavity (18).
Moreover, the cover (14) comprises a first indentation (16) that extends radially from the first cavity (18) and the base (9) comprises a second indentation (22) facing the first indentation (16) that extends radially from the recess (27) which facilitates the unclipping of the clipping element (49). The cover (14) comprises an outer cover face (48) that contacts the anchor plate (11).
On the first inner face (26), the base (9) comprises two second tubular protrusions (28) coaxial to the lateral base orifices (24), and the cover (14) comprises lateral fastening orifices (29) that house the second tubular protrusions (28) that facilitate fastening between the cover (14) and the base (9), preferably by riveting. Additionally, the first outer face (31) has a greater cross section than the first inner face (26) and than the die-cut or machining (3) and the base comprises a lateral projection (34) in the vicinity of the first outer face (31) intended to fit into the die-cut or machining (3).
Figure 3 shows an exploded perspective view of a handle for doors and windows, according to the present invention, wherein the anchor plate (11), the cover (14), the retaining bushing (13), the base (9), a washer (40), the fastening elements (25), a positioning bushing (30), an elastic element (32), the rotation shaft (6), and the lever (5), among others, can be seen.
The rotation shaft (6) comprises a housing (46) wherein a clipping element (49) is housed. The clipping element (19, 20) consists of a spring (19) housed in the housing and fastened by one of the two ends thereof to the rotation shaft (6) and a pin (20) fastened to the other end that is retained by the groove (15).
The positioning bushing (30) defines the rotation positions of the lever (5). The bushing is preferably made of plastic and comprises hollows (41) opposing projections (42) arranged on the first inner face (31) of the base (9), wherein the relative position of the projections (42) of the base (9) with respect to the hollows (41) of the plastic positioning bushing (30) defines the rotation positions of the lever (5), since the positioning bushing (30) comprises a central bushing cavity (35) of complementary shape to the rotation shaft (6) and when rotating the lever (5) the positioning bushing (30) rotates. Preferably the positioning bushing (30) comprises four hollows (41) equally spaced at 90° opposing four projections (42) of the base (9) equally spaced at 90°, defining the distinct positions of the lever 90° by 90°.
The relative rotation of the plastic positioning bushing (30) with respect to the base (9) causes the hollows (41) of the positioning bushing (30) to slide over the projections (42) of the base (9), thus further compressing the elastic element (32), which is preferably a spring. Preferably both the projections (42) and the hollows (41) are curved, such that together with the force exerted by the elastic element (32), it makes the lever (5) have a tendency to be placed in the positions wherein projection (42) and hollow (41) line up, which are the positions wherein the elastic pressure element (32) applies less force, and wherein the lever describes a relative rotation of 90°.
Preferably the rotation shaft (6) is a square rod and the central bushing cavity (35) and the second cavity (17) of the retaining bushing (13) have a complementary shape to the square rod such that they rotate in unison. Once the lever (5) is assembled together with the square rod and the positioning bushing (30), the force exerted by the elastic element (32) towards the outside is compensated by means of the clipping element (49), maintaining the lever (5) in the position thereof, possible play is corrected and the wear of the bushing (30) is compensated.
The handle comprises the washer (40) around the first outer face (31) of the base (9) that avoids play between the base (9) and a central lever cavity (44) of the lever (5) and guarantees a correct rotation of the lever (5), the elastic element (32), and the positioning bushing (30) with respect to the base (9). Preferably, the washer (40) is made of a low-friction plastic material.
When the rotation shaft (6) is inserted by pushing the lever (5) through the central base cavity (10) overcoming the resistance of the compressible elastic element (32), the clipping element (49) retains the rotation shaft (6) attached to the base (9), the washer (40) fastening the assembly formed by the rotation shaft (6), the lever (5), the positioning bushing (30), and the elastic element (32) to the base part (9).
Figure 4 shows a perspective view of the assembled handle for doors and windows, according to the present invention. Wherein the anchor plate (11) can be seen with the central anchor plate cavity (12) thereof that partially houses the rotation shaft (6) and the base (9) with the second indentation (22) thereof from which the clipping element (49) can be accessed. Two cylindrical protrusions (38) extend from the anchor plate (11) intended to be inserted into two tubular cavities (39) of the transmission mechanism (1).
The rotation shaft (6) comprises a lowered sector of smaller dimensions than the rest of the rotation shaft (6) in the vicinity of the free end (8) intended to be linked to the transmission mechanism (1) that transforms the rotational movement of the lever (5) into a translational movement of a slider to release or fasten the door or window sash to a door or window frame.
Figure 5 is a longitudinal cross section view of the handle for doors and windows assembled on a profile (2), according to the present invention. It can be seen that the lever (5) comprises the central lever cavity (44) wherein the elastic element (32), the positioning bushing (30), the washer (40) and partially the base (9) are housed. The elastic element (32) absorbs the existing play or wear that occurs in the direction defined by the rotation shaft (6). The central lever cavity (44) comprises a narrowing (45) wherein the coupling end (7) of the rotation shaft (6) is housed so that the lever (5) and the rotation shaft (6) are attached by pressure.

Claims

A handle for doors and windows intended to be linked to a transmission mechanism (1) arranged on the inside of a profile (2), of a door or window sash, equipped with a flange (4) comprising a die-cut or machining (3), wherein the handle comprises:
- a lever (5) intended to be arranged on the outside of the profile (2)

- a rotation shaft (6) limited by a perimeter surface (21) equipped with a coupling end (7) fastened to the lever (5) and a free end (8) intended to be coupled to the transmission mechanism (1);

- a base (9) intended to be partially housed in the die-cut or machining (3) equipped with a central base cavity (10), which houses the rotation shaft (6), and a first outer face (31) linked to the lever (5) and a first inner face (26);

- an anchor plate (11) intended to be coupled to the transmission mechanism (1) and be arranged on the inside of the profile (2) and linked to the first inner face (26) and is equipped with a central anchor plate cavity (12) that houses the rotation shaft (6);
characterised in that the handle comprises:
- a retaining bushing (13) that is partially housed in the base (9) in the vicinity of the first inner face (26) able to rotate and is equipped with:
∘ a second through cavity (17) of complementary shape to the rotation shaft (6) and that partially houses the rotation shaft (6);

∘ a radial groove (15) that extends from the second cavity (17),

- a compressible clipping element (49) linked to the perimeter surface (21) which, in an assembly situation, is housed in the groove (15) in a decompressed position and retains the rotation shaft (6) in a longitudinal direction.
The handle of claim 1, comprising a fastening cover (14) that defines a first through cavity (18) that houses the rotation shaft (6) and is equipped with a second outer face (47) fastened to the first inner face (26) of the base (9) and the base (9) comprises a recess (27) extending from the first inner face (26) and comprises a diameter greater than the cross section of the first cavity (18), wherein the retaining bushing is housed in the recess (27).
The handle of claim 1, wherein the perimeter surface (21) comprises a housing (46) and the clipping element (49) is partially housed in the housing (46).
The handle of claim 1, wherein the clipping element (49) consists of a spring (19) housed in the housing (46) and fastened by one of the two ends thereof to the rotation shaft (6) and a pin (20) fastened to an opposite end.
The handle of claim 1, wherein the retaining bushing (13) comprises a first tubular protrusion (50), which borders the second cavity (17) and is housed in the central base cavity (10).
The handle of claim 5, wherein the retaining bushing (13) comprises a tubular projection (51), which extends in the opposite direction to the first tubular protrusion (50) and borders the second cavity (17), wherein the tubular projection (51) is housed in the first cavity (18).
The handle of claim 2, wherein the cover (14) comprises a first indentation (16) that extends radially from the first cavity (18) and the base (9) comprises a second indentation (22) facing the first indentation (16) that extends radially from the recess (27).
The handle of claim 1, wherein the anchor plate (11) comprises two lateral anchor plate through orifices (23) and the base (9) comprises two lateral base through orifices (24) and the handle comprises at least two longitudinal fastening elements (25) housed in respective lateral orifices (23, 24) that attach the anchor plate (11) and the base (9) and press them against the flange (4) of the profile (2).
The handle of any of claims 2 and 8, wherein the first inner face (26) of the base (9) comprises two second tubular protrusions (28) coaxial to the lateral base orifices (24), and the cover (14) comprises lateral fastening orifices (29) that house the tubular protrusions (28).
The handle of claim 1, wherein the first outer face (31) has a greater cross section than the first inner face (26) and the die-cut or machining (3) and the base comprises a lateral projection (34) in the vicinity of the first outer face (31) intended to fit into the die-cut or machining (3).
The handle of claim 1, comprising a positioning bushing (30), linked to the first outer face (31) equipped with a central bushing cavity (35) of complementary shape to the rotation shaft (6) and the handle comprises an elastic element (32) linked to the positioning bushing (30) and to the lever (5).