Assembly comprising an opening panel, a fixed frame and an opening and closing system with an adjustable cam for the opening panel

Abstract

An assembly comprising a system (16) for opening / closing a sash (12) having a wall (12) with two opposing internal and external faces (12a, 12b) relative to a frame (14). The system comprises: - a shaft passing through the sash (12), mounted for rotation relative to the sash and fixed in axial translation to the latter, the shaft having a first end opening onto the external face (12a) and configured to be rotated about the axis of the side and a second opposite end, - a cam (18) mounted on the second end, fixed to the shaft and comprising, a first part having a through opening through which the second end passes, the dimensions of the opening allowing the position of the opening to vary relative to the second end and, a second part extending at an angle relative to the first part and away from the sash (12).

Description

Technical Field

[0001] This presentation concerns an assembly comprising an opening, a fixed frame and a system for opening and closing the opening relative to the fixed frame. Previous technique

[0002] There are known systems for opening / closing a sash relative to a frame that include a cam attached to a quarter-turn mechanism mounted to rotate relative to the sash. The cam is located on the inside of the sash and can be rotated around the axis of the quarter-turn mechanism from the outside of the sash, via the latter, in order to: either a closed or locked position in which the cam rests on the frame so as to prevent the opening of the sash relative to the frame, or an open position in which the cam is no longer resting on the frame and the sash can then be freely opened relative to the frame.

[0003] Such systems according to the preamble of claim 1 are for example known from FR2701986 or EP3783175.

[0004] It has been observed that this type of standard system is not always effective when installed on an existing assembly consisting of a sash and a frame, due to several factors, including: manufacturing tolerances which can vary greatly and make closing the opening difficult and / or unreliable, or even impossible in some installation configurations; the fixed length of the quarter turn which, in some installation configurations, makes it difficult for the cam to bear on the frame because, for example, the area of ​​the frame on which the cam is supposed to bear for its locking is further away than expected.

[0005] In view of the above, there is therefore a need for an opening / closing system for the sash relative to the frame that can be integrated into an existing sash and frame configuration with greater reliability than before. Description of the invention

[0006] To this end, the present invention relates to an assembly comprising a sash, a frame and an opening / closing system for the sash relative to the frame, the sash having a wall with two opposite faces separated from each other by a wall thickness, characterized in that the system is mounted on the sash and comprises: an axis passing through the opening in its thickness, mounted for rotation relative to the opening and fixed to it in axial translation, the axis comprising, on the one hand, a first end opening onto a first external face of the wall and configured to be actuated in rotation around the axis by an external actuating member in rotation on the side of the first external face and, on the other hand, a second opposite end extending away from a second internal face of the wall opposite the first external face, a cam mounted on the second end of the axis and fixed to the axis in rotation and in axial translation, the cam comprising, on the one hand, a first part which is provided with a through opening through which the second end of the axis extends axially, the through opening having, in a direction perpendicular to the axis,a dimension greater than the dimension of the second end of the axis along this direction so that the position of the through opening relative to the second end of the axis can vary on demand along this direction, called the cam position adjustment direction, and, on the other hand, a second part that extends at an angle relative to the first part and away from the opening.

[0007] The above assembly configuration, thanks to the cam's position adjustment (the adjustment is made parallel to the plane of the second inner face of the wall, following the cam's position adjustment direction) via the through opening, allows the cam to be positioned appropriately for the position of the support zone or portion of the frame against which the second part of the cam must bear to close (lock) the sash. This feature is particularly useful when the position of the frame's support zone or portion is likely to vary from one sash-frame assembly installation configuration to another along this adjustment direction. Furthermore, the cam's inclination or camber also allows for compensation of certain manufacturing tolerances in the shaft length and its axial position relative to the frame.This aspect is particularly interesting with standard quarter-turns.

[0008] Depending on other possible characteristics: The cam is adapted to bear or not on a bearing portion of the frame depending on the rotational position of the axis relative to the sash, such that when the cam bears on the bearing portion of the frame, the sash is held in the closed position relative to the frame; the first end of the axis has a recess configured to be actuated in rotation about the axis by an external rotational actuating member; the system includes a quarter-turn comprising a body and a rotor which forms the axis of the system; the system includes an axial locking member for the cam in position relative to the second end of the axis; the first part of the cam has a generally rectangular plate shape in which a substantially rectangular through opening is made; the second part of the cam has a generally rectangular plate shape;The cam is, for example, formed from a sheet of metal cut and bent to create the inclination between the first and second parts, or by any other method of manufacturing such a cam; the cam is, for example, made of plastic and is obtained by molding or by any other method of manufacturing such a cam. Brief description of the drawings

[0009] The purpose and advantages of this presentation will be better understood upon reading the detailed description below of various implementation examples, provided as non-exhaustive examples. This description refers to the attached figure pages, on which: [ Fig. 1 ] There figure 1 represents a schematic side view of an assembly according to an example embodiment of the invention which includes an opening / closing system for a sash relative to a frame, the sash being in the closed position; Fig. 2 ] There figure 2 is a front perspective view of the quarter turn of the figure 1 ; Fig. 3 ] There figure 3 is a side perspective view of the quarter turn of the figure 2 ; Fig. 4 ] There figure 4 is a perspective view of the cam of the figure 1 in an inverted position; [ Fig. 5 ] There figure 5 is a perspective view of the whole represented at the figure 1 ; Fig. 6 ] There figure 6 is a view analogous to that of the figure 1 showing a cam that is too high relative to the standing part; [ Fig. 7 ] There figure 7 is a view analogous to that of the figure 6 showing the cam position adjustment; [ Fig. 8 ] There figure 8 represents a schematic axial cross-sectional view of an assembly according to an example of an embodiment of the invention. Description of the implementation methods

[0010] As depicted in the figure 1 and designated by the general reference noted 10, an assembly according to an embodiment of the invention comprises an opening 12 and a fixed 14, both partially represented and of known type, and a system 16 for opening / closing the opening relative to the fixed (described later).

[0011] Conventionally, at least one hinge system, known per se (not shown), is mounted on the sash and the frame to allow the sash to pivot relative to the frame, either along a vertical axis (vertical axis Z) or along a horizontal axis. When the opening / closing mechanism allows the sash to open relative to the frame, the sash can then pivot around the axis of articulation (hinge).

[0012] As depicted on the figure 1 The opening 12 comprises a wall having two opposing faces 12a and 12b which are separated from each other by the thickness of the opening wall. Face 12a represents the front or external face of the opening wall, the side on which the user who wishes to open or close the opening is located, while face 12b represents the rear or internal face of the opening wall, the side on which the opening / closing mechanism of the opening is located. It should be noted that the assembly formed by the opening and the fixed part may be an assembly which is part of an entity such as a chest, box, locker or, in general, any other entity in which an opening is mounted hinged relative to a fixed part to separate the space located on one side, called internal, of the opening from the space located on the opposite side, called external, of the opening when the opening is in the closed position relative to the fixed part and, thus, to block communication between these two spaces.When the opening element is in the open position relative to the fixed frame, the two spaces mentioned above communicate freely with each other. The opening element can be a door providing access to a room or a panel allowing access to a space or compartment.

[0013] The system 16 is mounted on the wall of the opening and includes, in particular, an axle that passes through the opening 12 in its thickness and a cam 18 mounted on the axle and illustrated on the figure 1 .

[0014] More specifically, in this embodiment, the system 16 comprises a quarter-turn 20, known in itself, which includes a body 22 and a rotor 24 forming the aforementioned through-axis, as shown in front perspective on the figure 2 The axis or rotor 24 of the system is mounted to rotate relative to the opening 12 and is also fixed to the opening in axial translation. Thus, the only possible degree of freedom of this axis or rotor 24 with respect to the opening is rotation about the imaginary axis of rotation a (perpendicular to the wall 12) illustrated in the figure 1 and according to which the axis or rotor 24 is arranged.

[0015] The shaft or rotor 24 has two opposite ends, namely a first end 24a visible on the figure 2 and which opens onto the first external face 12a of the wall 12 of the opening ( figure 1 ) and a second opposite end 24b which extends away from the second inner face 12b of the wall when the quarter turn is mounted on it ( figure 1 ).

[0016] As depicted on the figure 2 The first end 24a is configured to be rotated around the axis or rotor 24 (aligned along the imaginary axis a) by an external rotating actuating element, not shown here, which may be a key, a handle, or any other element allowing a user located on the side of the external face 12a to rotate this first end 24a and thus cause a quarter-turn rotation around its axis of rotation. It should be noted that the first end 24a takes, for example, the form of a recess that here forms a square for manipulation from the external face 12a of the opening wall.

[0017] The cam 18, for its part, is more specifically mounted on the second end 24b of the shaft or rotor 24, behind the body 22 (starting from the first end 24a and moving away from the wall of the opening on the figure 1 ). The cam 18 is mounted on the shaft or rotor 24 so as to be fixed to it in rotation and in axial translation (along the imaginary axis a).

[0018] The system 16 includes an axial locking member 26 mounted on the second end 24b, which serves to axially lock / hold the cam 18 in position relative to this second end of the shaft. The member here takes the form of a screw that is screwed into the rotor by its second end, but other, unshown, alternative forms of axial locking members may be suitable.

[0019] As depicted on the figures 1 à 3 , the body 22 may have on its front face a collar 22a which surrounds the first open end 24a and which projects beyond the first external face 12a of the wall of the opening onto the figure 1 The body 22 may also include a nut 22b which allows the body 22 to be tightened against the wall of the opening. The wall of the opening is thus clamped between the front flange 22a and the tightening nut 22b.

[0020] As depicted on the figures 1 , 4 And 5 The cam 18 comprises two parts 18a and 18b which are inclined relative to each other so as to give the entire cam a curved or cambered shape. In the illustrated embodiment, the first part 18a has a through opening or slot O through which the second end 24b of the rotor 24 extends axially, and the second part 18b extends at an angle relative to the first part, that is, forming an angle with the latter, away from the second end 24b and in particular away from the opening 12 on the figure 1 This camber allows for compensation of manufacturing tolerances which may occur, particularly with regard to the length of the shaft or rotor 24.

[0021] As depicted on the figure 3 The second end 24b of the rotor 24 has a substantially cylindrical shape and a cross-section extending in two dimensions contained in a plane parallel to the plane of the second inner face 12b of the opening wall. The through-opening O here has a generally elongated shape, for example rectangular, whose longer dimension L is greater than one of the two dimensions of the cross-section of the second end 24b. The smaller dimension I of the through-opening corresponds substantially to the other dimension of the cross-section of the second end 24b. In the present example, the cross-section of the second end 24b is normally circular and, locally, is, for example, formed by four flats (square shape) which allow the through-opening O of the cam to engage and grip this opening around the second end thus configured locally.However, other cross-section shapes could be conceived for this second end 24b, for example a rectangular shape and other contour shapes for the through opening which cooperates with the local configuration of the second end.

[0022] The through opening O, which is elongated along one of its two dimensions (taken in a cross-section), can thus be positioned variably relative to the second end 24b of the rotor, by moving the opening relative to this end along the adjustment direction Dr, which, on the figures 1 , 6 et 7 , corresponds to the vertical direction Z.

[0023] On the figure 1 The cam is correctly positioned against a support area P, which in this case is an internal edge of the frame 14, to compress the cam against the frame. The elongation of the opening provides ample room to adjust the cam's compression against the frame. This compression is achieved, for example, by lowering the cam, using the vertical adjustment, to a position lower than that of the contact area or support point of the frame. Thus, this compression adjustment allows a standard quarter turn to achieve the same effect as a compression quarter turn, reliably compressing the sash against its frame.

[0024] When the cam 18 is too high relative to the fixed part 14' and therefore too far from it, as illustrated on the figure 6 The vertical position of the cam 18, i.e., along the adjustment direction Dr, can be adjusted by sliding the through opening O downwards relative to the second end 24b so that it approaches the frame 14' which is higher than the frame 14 of the figure 1 ( figure 6 ). On the figure 7 This downward movement, symbolized by the downward arrow, shows that a new position adjustment is achieved to put the cam 18, more specifically its second part 18b, in compression on the support area or portion P' of the frame 14'. It should be noted that the adjustment can also be made by raising the cam when it is in a position that is too low relative to the frame of the installation.

[0025] This compression of the cam against the contact area of ​​the frame is achieved when the sash is to be reliably closed and locked relative to the frame. To unlock the sash from the frame, the user operates the shaft or rotor 24 from the outside, via an actuating mechanism, to rotate this shaft, generally by a quarter turn, so that the cam is no longer bearing against the frame and the sash can thus pivot freely about its axis of articulation. figure 5 illustrates in perspective a closed and locked position of the opening relative to the fixed part.

[0026] It should be noted that in the locking position the cam 18 is positioned vertically but that in alternative configurations the locking can also occur with a cam oriented differently and, for example, in a horizontal locking position.

[0027] The representation of the figure 4 The design is particularly simple since the cam, for each of the first 18a and second 18b parts, has a generally rectangular plate shape, with the first part 18a having a through opening O that is also substantially rectangular. In this example, the two plates have the same width. Such a cam is formed, for example, from a sheet of metal of predetermined thickness, which is cut to the desired length and width and then bent along a bend or camber zone 18c to create the desired inclination between the two parts. The angle of inclination between the two parts is, for example, 45° and, more generally, falls within a range of angles from 10° to 80°.

[0028] According to one alternative embodiment, the cam whose shape is shown in the figure 4 can be made of plastic by molding or by any other production process.

[0029] Furthermore, the particularly simple shape of the cam depicted in the figure 4 may differ in variants not shown. Thus, for example, the two constituent parts of the cam may have different shapes: the first part may be wider than the second part or vice versa and / or the rectangular outline of each of the two parts may also take other shapes.

[0030] There figure 8This illustrates another embodiment in which the opening / closing system of the sash 12 relative to the frame 14 differs from the previous embodiment in that the system includes a part 24' forming an operating axis which passes through the thickness of the sash wall instead of the standard quarter-turn of the previous figures. The part 24 has two opposing ends 24a' and 24b', the first end 24a' being located on the side of the external face 12a of the wall and here taking the form of a head with a hollow recess 24a1' configured to be actuated in rotation by an external actuating member as in the previous embodiment (it should be noted generally, as in the previous embodiment, that the recess is not necessarily hollow). A second opposing end 24b' located on the side of the internal face 12b of the wall receives, as in the previous embodiment, an identical or similar cam 18.As in the previous mode, an axial locking member 26' is fixed to the end of the second opposite end 24b' by being fitted into the hollow part of the second opposite end 24b' in order to bear against the first part 18a of the cam and to hold the latter in contact with a part 28' forming a spacer which is disposed between the second inner face 12b and the first part 18a. The spacer 28' surrounds the part 24' forming an operating axis in the manner of a sleeve.

[0031] The operation and benefits of the adjustable cambered 18 are the same as for the previous mode and are therefore not repeated here.

[0032] Other arrangements not shown of opening / closing system of the opening including, in particular, an axis which passes through the opening 12 in its thickness and a cam mounted on the axis may be suitable.

[0033] Although the present invention has been described with reference to specific embodiments, it is evident that modifications and changes can be made to these examples without departing from the general scope of the invention as defined by the claims.

Claims

1. An assembly comprising an opening (12), a frame (14), and a system (16) for opening / closing the opening relative to the frame, the opening including a wall (12) having two opposite faces (12a 12b) separated from each other by a wall thickness, the system being mounted on the opening and comprising: - an axis (24) passing through the opening (12) in its thickness, rotatably mounted relative to the opening and axially fixed in translation to it, the axis including, on one hand, a first end (24a) emerging on a first external face (12a) of the wall and configured to be rotated around the axis by an external rotating actuation member on the side of the first external face (12a) and, on the other hand, an opposite second end (24b) extending away from a second internal face (12b) of the wall opposite the first external face, characterized in that the assembly comprises a cam (18) mounted on the second end of the axis and fixed to the axis in rotation and axial translation, the cam including, on one hand, a first part (18a) provided with a through opening (O) through which the second end (24b) of the axis extends axially, the through opening (O) having, in a direction perpendicular to the axis, a dimension (L) greater than the dimension of the second end of the axis in this direction so that the position of the through opening relative to the second end of the axis can vary on demand in this direction called the cam position adjustment direction and, on the other hand, a second part (18b) extending inclined relative to the first part (18a) and away from the opening (12).

2. The assembly according to claim 1, characterized in that the cam (18) is capable of being supported or not on a support portion (P) of the frame (14) depending on the rotational position of the axis (24) relative to the opening such that, when the cam (18) is supported on the support portion (P) of the frame (14), the opening is held in a closed position relative to the frame.

3. The assembly according to claim 1 or 2, characterized in that the first end (24a) of the axis includes an imprint configured to be rotated around the axis by an external rotating actuation member.

4. The assembly according to one of claims 1 to 3, characterized in that the system comprises a quarter turn (20) including a body (22) and a rotor (24), which forms the axis of the system.

5. The assembly according to one of claims 1 to 4, characterized in that the system includes an axial locking member (26) of the cam (18) in position relative to the second end of the axis.

6. The assembly according to one of claims 1 to 5, characterized in that the first part (18a) of the cam has a generally rectangular plate shape wherein the through opening (O) of a generally rectangular shape is made.

7. The assembly according to one of claims 1 to 6, characterized in that the second part (18b) of the cam has a generally rectangular plate shape.

8. The assembly according to one of claims 1 to 7, characterized in that the cam (18) is formed from a cut and bent metal sheet to form the inclination between the first and second parts.

9. The assembly according to one of claims 1 to 7, characterized in that the cam is made of plastic material and is obtained by molding.

Images