WINDOW, DOOR OR THE LIKE HAVING A SCISSOR ARM STAY BETWEEN A FIXED FRAME AND A LEAF

Abstract

The invention relates to a window or door, having a fixed frame and a leaf which can be moved relative to the fixed frame and having a scissor arm stay between the fixed frame and the leaf.

Claims

1. A window or door, having a fixed frame (2) and a leaf (3) which can be moved relative to the fixed frame (2) and having a scissor arm stay(4) between the fixed frame (2) and the leaf (3), wherein the scissor arm stay (4) has a scissor arm (7) which is supported, on the one hand, by means of a fixed-frame-side pivot bearing (9) so as to be able to be pivoted about a fixed-frame-side pivot axis (10) which extends parallel with a main plane (12) of the fixed frame (2) and which is pivotably supported by means of a leaf-side pivot bearing (8) about a leaf-side pivot axis (11) which extends parallel with the fixed-frame-side pivot axis (10), wherein, as a result of a movement of the leaf (3) relative to the fixed frame (2), the fixed-frame-side pivot bearing (9) can be moved perpendicularly to the fixed-frame-side pivot axis (10) along the fixed frame (2) and/or the leaf-side pivot bearing (8) can be moved perpendicularly to the leaf-side pivot axis (11) along the leaf (3), wherein the fixed-frame-side pivot bearing (9) is provided on a fixed-frame-side guiding piece which is provided as a guiding piece (14) and/or the leaf-side pivot bearing (8) is provided on a leaf-side guiding piece which is provided as a guiding piece, wherein the fixed frame (2) has, for the fixed-frame-side guiding piece, a guiding groove (15) in the form of a fixed-frame-side guiding groove which is associated with the fixed-frame-side guiding piece and which extends with the longitudinal direction thereof in the movement direction (13) of the fixed-frame-side pivot bearing (9) along the fixed frame (2) and/or the leaf (3) has, for the leaf-side guiding piece, a guiding groove in the form of a leaf-side guiding groove which is associated with the leaf-side guiding piece and which extends with the longitudinal direction thereof in the movement direction of the leaf-side pivot bearing along the leaf (3), wherein the guiding piece (14) can be inserted into the guiding groove (15) in an insertion direction (35) which extends in the longitudinal direction of the associated guiding groove (15) and the guiding piece (14) which is inserted into the guiding groove (15) is guided by means of the guiding groove (15) in the movement direction (13) of the relevant pivot bearing (9) and is engaged over at a side remote from a groove base (18) of the guiding groove (15) by a groove wall (17) of the guiding groove (15) parallel with the groove base (18) and can thereby be supported perpendicularly to the groove base (18) and further comprising a braking element (30) which is received in a receiving member (29) of the guiding piece (14), which receiving member opens in the direction towards the groove base (18) of the guiding groove (15), and which braking element (30) can be positioned relative to the guiding piece (14) with a positioning movement in a positioning direction of the braking element (30) perpendicularly to the groove base (18) and which can thereby be clamped between the guiding piece (14) and the groove base (18), wherein a component connection is provided between the guiding piece (14) and the braking element (30) by means of which the braking element (30) is retained on the guiding piece (14) so as to be movable in the positioning direction of the braking element (30).

2. The window or door according to claim 1, wherein the guiding piece (14) and the braking element (30) which is retained by means of the component connection (31) on the guiding piece (14) in a starting state outside the guiding groove (15) form a common cross-section, which in the perpendicular projection in the insertion direction (35) on the cross-section of the guiding groove (15) overhangs the cross-section of the guiding groove (15) by the braking element (30) forming an overhang with respect to the guiding piece (14), and wherein the guiding piece (14) and the braking element (30) which is retained by means of the component connection (31) on the guiding piece (14) can be transferred by means of a movement relative to each other in an assembly state, in which the common cross-section of the guiding piece (14) and the braking element (30) in the perpendicular projection in the insertion direction (35) on the cross-section of the guiding groove (15) is located within the cross-section of the guiding groove (15).

3. The window or door according to claim 2, wherein the braking element (30) is pivotably retained by means of the component connection (31) on the guiding piece (14) so as to be able to be pivoted relative thereto about a pivot axis (33) which extends perpendicularly to the insertion direction (35), wherein the guiding piece (14) and the braking element (30) which is retained by means of the component connection (31) on the guiding piece (14) in the starting state outside the guiding groove (15) form a common cross-section which overhangs the cross-section of the guiding groove (15) by the braking element (30) being pivoted relative to the guiding piece (14) about the pivot axis (33) into a corresponding pivot position and wherein the receiving member (29) provided on the guiding piece (14) for the braking element (30) is arranged in the insertion direction (35) behind the component connection (31) between the guiding piece (14) and the braking element (30).

4. The window or door according to claim 1, wherein the guiding piece (14) is constructed as a composite component and has a metal carrier (23) and a plastics material portion (24) which is connected to the metal carrier (23) and wherein the component connection (31) between the guiding piece (14) and the braking element (30) is provided between the plastics material portion (24) of the guiding piece (14) and the braking element (30).

5. The window or door according to claim 4, wherein the metal carrier (23) of the guiding piece (14) is provided with a positioning device for positioning the braking element (30) relative to the guiding piece (14).

6. The window or door according to claim 5, wherein the metal carrier (23) of the guiding piece (14) has as a positioning device a thread for an adjustment screw (28), by means of which the braking element (30) can be positioned relative to the guiding piece (14).

7. The window or door according to claim 4, wherein the guiding piece (14) which is inserted into the guiding groove (15) is engaged over on the metal carrier (23) of the guiding piece (14) by a groove wall (17) of the guiding groove (15) parallel with the groove base (18).

8. The window or door according to claim 4, wherein the guiding piece (14) which is inserted into the guiding groove (15) is guided on the plastics material portion (24) of the guiding piece (14) in the movement direction (35) of the relevant pivot bearing (9).

9. The window or door according to claim 1, wherein the guiding piece (14) and the braking element (30) are each at least partially constructed as an injection-moulded plastics material component and are injection-moulded onto each other with the component connection (31) being formed.

10. The window or door according to claim 1, wherein the component connection (31) between the guiding piece (14) and the braking element (30) is constructed as a film hinge.

11. The window or door according to claim 1, wherein the component connection (31) between the guiding piece (14) and the braking element (30) can be destroyed by means of a first positioning movement of the braking element (30).

Description

[0025] The invention is explained in greater detail below with reference to exemplary schematic illustrations in which:

[0026] FIG. 1 is a partial illustration of a window having a fixed frame, a leaf and a friction stay mechanism which is provided between the fixed frame and the leaf as a scissor arm stay,

[0027] FIG. 2 is a perspective view from above of a guiding piece of the friction stay mechanism which guiding piece is arranged at the fixed frame side and provided with a braking element,

[0028] FIG. 3 shows the guiding piece with the braking element according to FIG. 2 as a perspective view of the lower side facing away from the viewer of FIG. 2,

[0029] FIG. 4 is a longitudinal section of the guiding piece with the braking element according to FIGS. 2 and 3,

[0030] FIG. 5 is a cross-section of the guiding piece with a braking element according to FIGS. 2 to 4 in a plane of section extending in FIG. 4 along the line V-V, and

[0031] FIG. 6 shows the guiding piece with the braking element according to FIGS. 2 to 5 in the end-side view in the direction of the arrow VI in FIG. 4.

[0032] According to FIG. 1, a window 1 comprises a fixed frame 2 and a leaf 3 which opens outwards. A scissor arm stay which is arranged between the fixed frame 2 and the leaf 3 connects the leaf 3 to the fixed frame 2 and enables movements of the leaf 3 relative to the fixed frame 2 about a vertical rotation axis. A scissor arm stay which is structurally identical to the scissor arm stay illustrated in FIG. 1 is spaced apart from the scissor arm stay 4 along the leaf rotation axis and provided at the upper corner of the leaf 3 located outside the illustration cut-out of FIG. 1.

[0033] The scissor arm stay 4 comprises a stay arm 5 which is pivotably supported with one end on the fixed frame 2 and the other end on the leaf 3. The fixed-frame-side rotation axis and the leaf-side rotation axis of the stay arm 5 extend parallel with each other in a vertical direction. A fixed-frame-side pivot bearing 6 of the stay arm 5 cannot be changed in terms of position relative to the fixed frame 2. Accordingly, a leaf-side pivot bearing (which is concealed in FIG. 1) of the stay arm 5 is stationary relative to the leaf 3.

[0034] Between the fixed-frame-side pivot bearing 6 and the leaf-side pivot bearing of the stay arm 5, there is articulated to the stay arm 5 a scissor arm 7 of the scissor arm stay 4 by means of a leaf-side pivot bearing 8. At the opposing longitudinal end, the scissor arm 7 is pivotably supported on the fixed frame 2 by means of a fixed-frame-side pivot bearing 9. A fixed-frame-side pivot axis 10 which is formed by the fixed-frame-side pivot bearing 9 and a leaf-side pivot axis 11 of the scissor arm 7 which is formed by the leaf-side pivot bearing 8 also extend parallel with each other in a vertical direction. Both the pivot axes of the stay arm 5 and the pivot axes 10, 11 of the scissor arm 7 are consequently orientated parallel with a vertical main plane 12 of the fixed frame 2, which plane is indicated with broken lines in FIG. 1.

[0035] The fixed-frame-side pivot bearing 6 and the leaf-side pivot bearing of the stay arm 5 are, similarly to the leaf-side pivot bearing 8 and the fixed-frame-side pivot bearing 9 of the scissor arm 7, of conventional construction type. Bearing pins extend through corresponding bearing lugs on the components which are connected to each other in an articulated manner.

[0036] In contrast to the fixed-frame-side pivot bearing 6 of the stay arm 5, the fixed-frame-side pivot bearing 9 of the scissor arm 7 can move along the fixed frame 2. The movement direction of the fixed-frame-side pivot bearing 9 of the scissor arm 7 is indicated in FIG. 1 by a double-headed arrow 13.

[0037] In order to be able to carry out movements along the fixed frame 2, the fixed-frame-side pivot bearing 9 of the scissor arm 7 is provided on a guiding piece 14 which itself is guided by means of a fixed-frame-side guiding groove 15 in the movement direction 13 of the fixed-frame-side pivot bearing 9. The guiding groove 15 is delimited by a guiding rail 16 which is screwed to the fixed frame 2 and which forms a groove wall 17 of the guiding groove 15 which groove wall 17 is C-shaped in cross-section. The guiding groove 15 has a groove base 18 and a groove opening 19 which is opposite the groove base 18 and which extends in the movement direction 13 of the guiding piece 14. The groove opening 19 is delimited by mutually facing horizontal legs 20, 21 of the groove wall 17 which is C-shaped in cross-section.

[0038] With spacing from the scissor arm 7 on the guiding piece 14, a link 22 of the scissor stay arm 4 is pivotably supported by means of a corresponding pivot bearing. The opposing longitudinal end of the link 22 is supported on the leaf 3 so as to be able to be moved in a pivoting manner and in this instance cannot be changed in terms of position relative to the leaf 3. The pivot bearings of the link 22 also form pivot axes which extend parallel with each other in a vertical direction. When the leaf 3 is opened and closed, the link 22 guides in conventional manner the leaf 3 relative to the fixed frame 2 in such a manner that a collision of an overlapping leaf portion which is provided on the leaf 3 with the fixed frame 2 is prevented.

[0039] The guiding piece 14 which is guided in the fixed-frame-side guiding groove 15 in the movement direction 13 of the fixed-frame-side pivot bearing 9 is illustrated in detail in FIGS. 2 to 6, wherein these illustrations show the guiding piece 14 prior to assembly in the fixed-frame-side guiding groove 15.

[0040] The guiding piece 14 is a composite component with a metal carrier 23 and a plastics material portion 24. The plastics material portion 24 is injection-moulded onto the metal carrier 23 of the guiding piece 14.

[0041] According to FIG. 5, the metal carrier 23 of the guiding piece 14 has a substantially hat-shaped cross-section. With curved legs 25, 26, the metal carrier 23 extends almost over the entire length of the guiding piece 14. Substantially centrally, the metal carrier 23 forms a sleeve 27 which is provided with an inner thread which is not shown. The inner thread of the sleeve 27 receives an outer thread on an adjustment screw 28 which can be seen in FIGS. 1 and 2. Adjacent at both sides to the sleeve 27 of the metal carrier 23 are bearing lugs which receive the bearing pin of the fixed-frame-side pivot bearing 9 of the scissor arm 7 and the bearing pin of the fixed-frame-side pivot bearing of the link 22.

[0042] Below the sleeve 27, a receiving member 29 is recessed between the curved legs 25, 26 of the metal carrier 23 in the plastics portion 24 of the guiding piece 14. The receiving member 29 is intended for a brake pad 30 which is provided as a braking element. In the same manner as with the plastics material portion 24 of the guiding piece 14, the brake pad 30 is also a plastics material injection-moulded component. With a component connection 31 being formed, the brake pad 30 is injection-moulded on the plastics material portion 24 of the guiding piece 14.

[0043] As a result of corresponding material properties of the plastics material used for the plastics material portion 24 of the guiding piece 14, the brake pad 30 and the component connection 31, the component connection 31 permits pivot movements of the brake pad 30 relative to the guiding piece 14 in the direction of a double-headed arrow 32 illustrated in FIG. 4. At the beginning of the component connection 31 on the plastics material portion 24 of the guiding piece 14, a pivot axis 33 of the brake pad 30 which extends perpendicularly to the drawing plane of FIG. 4 is formed. The brake pad 30 is part of an adjustable friction brake 34 for the guiding piece 14 and consequently for the leaf 3 of the window 1.

[0044] During the assembly on the fixed-frame-side guiding rail 16, the guiding piece 14 must be inserted in an insertion direction 35 which extends perpendicularly to the pivot axis 33 of the brake pad 30 into the fixed-frame-side guiding groove 15. In this instance, the guiding piece 14 must be orientated in such a manner that, during the assembly movement, the receiving member 29, which is provided on the lower side of the guiding piece 14 for the brake pad 30, trails behind in the insertion direction 35 with respect to the component connection 31 which is provided between the guiding piece 14 and the brake pad 30. In order to prevent an incorrect orientation of the guiding piece 14 during assembly, in the plastics material portion 24 of the guiding piece 14 at the upper side thereof, an arrow which indicates the insertion direction 35 is formed (FIG. 2).

[0045] For introduction into the guiding groove 15, the guiding piece 14 must be positioned at the guiding groove 15 in such a manner that, during a movement of the guiding piece 14 in the insertion direction 35, the legs 20, 21 of the groove wall 17 of the guiding groove 15 enter longitudinal grooves 36, 37 which extend on the plastics material portion 24 of the guiding piece 14 over the entire length thereof and which reach in the transverse direction of the guiding piece 14 over the curved legs 25, 26 of the metal carrier 23 of the guiding piece 14 (FIG. 5).

[0046] In the initial state outside the guiding groove 15, the guiding piece 14 and the brake pad 30 which is retained by means of the component connection 31 on the guiding piece 14 have a common cross-section which as the perpendicular projection in the insertion direction 35 on the cross-section of the guiding groove 15 overhangs the cross-section of the guiding groove 15 since the brake pad 30 forms a projection with respect to the guiding piece 14. In order to eliminate the projection of the brake pad 30 with respect to the guiding piece 14 and thereby to reduce the common cross-section of the guiding piece 14 and the brake pad 30 in such a manner that it is located within the cross-section of the fixed-frame-side guiding groove 15, the brake pad 30 must be pivoted out of the position according to FIGS. 2, 4 and 6 about the pivot axis 22 towards the guiding piece 14 until the brake pad 30 comes to rest inside the receiving member 29 on the guiding piece 14. If the brake pad 30 is pivoted into the receiving member 29 on the guiding piece 14, the guiding piece 14 can be introduced over the entire length thereof in the insertion direction 35 into the guiding groove 15.

[0047] The fitter can pivot the brake pad 30 with a corresponding operation into the receiving member 29 on the guiding piece 14 and can subsequently insert the guiding piece 14 together with the brake pad 30 completely into the guiding groove 15. If the fitter intentionally or inadvertently omits the pivoting of the brake pad 30 into the receiving member 29 on the guiding piece 14, when the guiding piece 14 is inserted into the guiding groove 15 in the insertion direction 35 the component connection 31 strikes the end face of the groove wall 17 of the guiding groove 15 and a continued movement of the guiding piece 14 in the insertion direction 35 results in the brake pad 30 independently and without any risk of being violently separated from the guiding piece being redirected from the position according to FIG. 4 in the direction towards the receiving member 29 and finally being introduced in the receiving member 29 on the guiding piece 14. Consequently, the brake pad 30 then assumes a position in which the common cross-section of the guiding piece 14 and the brake pad 30 is located within the cross-section of the guiding groove 15 and in which consequently a complete introduction of the guiding piece 14 into the guiding groove 15 is possible.

[0048] The brake pad 30 is used to produce a movement resistance for the movement of the guiding piece 14 which is mounted on the guiding groove 15 and of the fixed-frame-side pivot bearing 9 which is provided on the guiding piece 14, when the guiding piece 14 performs a movement along the fixed frame 2, which movement is linked with an opening or closing movement of the leaf 3, wherein, as a result of the movement resistance, the leaf 3 only leaves a current pivot position when a sufficiently large force acts on the leaf 3 in the opening or closing direction.

[0049] The adjustment screw 28 which engages with the outer thread thereof in the inner thread on the sleeve 27 of the metal carrier 23 of the guiding piece 14 is used to control the movement resistance produced by means of the brake pad 30. By means of corresponding rotational actuation of the adjustment screw 28, the brake pad 30 can be clamped to a greater or lesser extent between the groove base 18 of the fixed-frame-side guiding groove 15 and the guiding piece 14 which is engaged over by the legs 20, 21 of the groove wall 17 parallel with the groove base 18. Forces which occur as a result of the clamping of the brake pad 30 between the guiding piece 14 and the groove base 18 of the guiding groove 15 are dissipated via the guiding piece 14 and the groove wall 17 of the guiding groove 15 into the fixed frame 2. In this instance, it is advantageous for the metal carrier 23 of the guiding piece 14, which carrier is sufficiently capable of bearing loads, to be included in the force path. An undesirable deformation of the guiding piece 14 under the action of the forces which occur is thereby prevented.