WINDOW OR DOOR INCLUDING A LOCKING SYSTEM

Description

[0001] The present invention relates to a window or door including a window sash or door leaf arranged movable in a frame between an open position and a closed position and a locking system including a locking rod arranged displaceably in its longitudinal direction in the window sash or door leaf, wherein the locking rod is displaceable by rotation of a pivotal operating handle, wherein a number of locking pawls are movable between a locked position and an unlocked position upon displacement of the locking rod, so that, when the window sash or door leaf is in its closed position and the operating handle is in a locked position, the locking pawls are in their locked position and engage corresponding respective striking plates arranged on the frame, and when the operating handle is in an unlocked position, the locking pawls are in their unlocked position out of engagement with said striking plates, wherein, when the operating handle and the locking pawls are in their unlocked positions, the locking system has a static friction which has to be overcome in order to bring the operating handle and the locking pawls away from their unlocked positions, wherein the locking system includes at least one spring element arranged to be loaded to a maximum load when the operating handle and the locking pawls are in their unlocked positions and adapted to unload at least to a minimum load when the operating handle and the locking pawls are brought to their locked positions, wherein the at least one spring element is arranged to unload gradually from the beginning to the end of the rotation of the operating handle from the unlocked to the locked position, wherein the spring load of the at least one spring element in the unlocked position of the operating handle and the locking pawls is lower than the spring load that would be necessary to overcome said static friction of the locking system in the unlocked position without a user operating the pivotal operating handle, wherein the at least one spring element has the form of a coiled spring, wherein a first end of the coiled spring is connected with the locking rod and a second end of the coiled spring is connected with a housing of the locking system, wherein the coiled spring is a compression spring, wherein the first end of the coiled spring abuts a displaceable bracket connected with the locking rod and the second end of the coiled spring abuts a part of the housing of the locking system, wherein the coiled spring is arranged in a longitudinal groove in the housing of the locking system, wherein the longitudinal groove has a first end wall and an opposed second end wall, wherein the second end of the coiled spring abuts the second end wall of the longitudinal groove, and wherein the first end of the coiled spring abuts a first end of the displaceable bracket.

[0002] EP 0 801 194 B1 discloses a sliding door multi-point lock comprising several bolts connected to metal rods which slide linearly in guide structures on a door side member by displacement of a central bolt. Each locking bolt is inserted in a block which is firmly connected to the rods. The blocks can be displaced linearly against a spring which is compressed by displacement of the plates corresponding to opening of the door.

[0003] EP 2 295 678 B1 discloses a locking system for a window or door including a displaceable locking rod adapted to tension a number of springs when displaced away from its locking position. In the unlocked position of the locking rod, the springs are trapped in their tensioned state and are not released before the locking rod is displaced towards its locking position by means of an operating handle. In an embodiment, the springs are arranged tiltably between the locking rod and a housing so that, in the unlocked position of the locking rod, the springs are oriented with their longitudinal axes at right angles to the locking rod. In this orientation, the springs are trapped in their compressed state and are not able to release their spring force before they are rotated to an angular position in which their longitudinal axes are obliquely arranged to the locking rod. However, although the springs may provide the entire force necessary for the last part of the locking operation, a rather large initial force may be required by the user in order to overcome the static friction of the locking system and initiate the locking operation. Moreover, this kind of release system is rather bulky and may be difficult to incorporate into many contemporary window sashes.

[0004] EP 3 144 456 A1 discloses a locking system for a door in which a spring is tensioned when a locking rod is displaced away from its locking position. In the open position of the door, a release mechanism maintains the locking rod in this tensioned position, until the door is closed, whereby a pawl is depressed when reaching a striking plate and activates the release mechanism. Thereby, the spring force is released and displaces the locking rod to its locking position. This system is therefore specifically adapted to lock the door when it reaches its fully closed position and cannot be used to assist the user when operating the handle in the open position of the door, for instance if a door brake is arranged to arrest the door in an open position by operation of the handle.

[0005] EP 2 287 426 B1 discloses another locking system for a door in which a spring may be tensioned and subsequently released in order to displace a locking rod. The system includes a release mechanism which may be operated to release the spring or prevent release of the spring.

[0006] EP 0 413 177 A1 and EP 0 385 213 A2 furthermore disclose locking systems including a release mechanism.

[0007] WO 2011/057988 A1 (VKR Holding A/S) discloses a door or window brake device actuated by a rotatable actuation rod. By rotation of the rotatable actuation rod, a slider arranged at a top side of the door leaf or window sash may be arrested. The slider is pivotally connected to an end of a stay element, the other end of which is pivotally connected to the frame of the door or window. The actuation rod is rotatable by displacement of a locking rod arranged in a side member of the door leaf or window sash. EP 1 718 829 B9 discloses a similar locking and brake system.

[0008] The object of the present invention is to provide a simple spring assisted locking system being easy to operate and being suitable for incorporation into a slim window sash or door leaf.

[0009] In view of this object, the first end of the displaceable bracket has the form of a tab being arranged between the first end wall of the longitudinal groove and the first end of the coiled spring and being adapted to slide in the longitudinal direction of the longitudinal groove, the displaceable bracket has a second end connected with the locking rod, an intermediate part of the displaceable bracket extends between the first end of the displaceable bracket and the second end of the displaceable bracket, the intermediate part of the displaceable bracket covers the coiled spring in the longitudinal groove, the second end of the displaceable bracket is connected to a slideable rod arranged in parallel to the locking rod and at a distance from the locking rod in a transverse direction of the locking rod, and the slideable rod is connected to the locking rod by means of a connecting piece extending in said transverse direction so that the locking rod with locking pawls and operating handle is arranged inside a sealing plane of the window sash, and the displaceable bracket with associated spring is arranged outside said sealing plane.

[0010] In this way, it may be possible to arrange a spring assisted locking system in a window sash or door leaf having a relatively slim configuration inside its sealing plane, because the displaceable bracket with associated spring is arranged outside the sealing plane. In some types of window sash or door leaf, this arrangement may be structurally particularly advantageous. Furthermore, is may be an advantage that the locking rod with locking pawls and operating handle may be isolated from the outside environment and thereby be protected from rain, dust ect, whereas the displaceable bracket with associated spring may be arranged outside the sealing plane and still be protected from the outside environment by means of the housing of the locking system in which the spring is arranged.

[0011] Furthermore, it may be possible to balance the spring force in relation to the static friction of the locking system so that the operating handle may be maintained in the unlocked position when the handle is not operated, and so that the locking operation may be initiated by the user with a very little operating force being much smaller than the static friction of the locking system. By arranging the at least one spring element to unload gradually from the beginning to the end of the rotation of the operating handle from the unlocked to the locked position, the entire locking operation may be assisted by the at least one spring element, thereby greatly facilitating the locking operation performed by the user. The coiled spring may be maintained in its linear form by side walls of the longitudinal groove. The displaceable bracket may be guided by means of the tab sliding in the groove. The first end wall of the longitudinal groove may function as an endstop for the displaceable bracket in the locked position of the locking system. The coiled spring may be maintained in its linear form by side walls and a bottom of the longitudinal groove, and finally by the intermediate part of the displaceable bracket which maintains the coiled spring in the longitudinal groove.

[0012] In an embodiment, the spring load of the at least one spring element in the unlocked position of the operating handle and the locking pawls is at least 3 per cent lower, preferably at least 6 per cent lower, and most preferred at least 10 per cent lower than the spring load that would be necessary to overcome said static friction of the locking system in the unlocked position without a user operating the pivotal operating handle. Thereby, it may be possible to obtain a suitable balance between the spring force in relation to the static friction of the locking system so that the operating handle may be maintained in the unlocked position when the handle is not operated, also after longer use of the system, whereby the static friction may be reduced due to wear. Furthermore, a suitable balance between said spring force in relation to said static friction may be obtained so that the handle is not operated too easy by the user, which could lead to unintentional operation of the handle.

[0013] In a structurally particularly advantageous embodiment, the coiled spring has a longitudinal direction extending at least substantially in parallel with the locking rod. By arranging the coiled spring with its longitudinal direction extending at least substantially in parallel with the locking rod, the spring may be closely integrated with the locking rod.

[0014] In an embodiment, the locking system includes a brake device adapted to, in a braking state, prevent the window sash or door leaf from moving in relation to the frame in any position between the open position and the closed position, and the locking system is adapted to bring the brake device into its braking state when the operating handle is in its locked position.

[0015] In an embodiment, the brake device is arranged outside said sealing plane and may be brought form its braking state to a non-braking state by displacement of the displaceable bracket.

[0016] In an embodiment, the brake device includes a rotatable actuation rod, in a first rotational position of the rotatable actuation rod, the brake device is in its braking state, and, in a second rotational position of the rotatable actuation rod, the brake device is in a non-braking state, and the rotatable actuation rod is rotatable upon displacement of the locking rod.

[0017] In an embodiment, the rotatable actuation rod is rotatable by means of the displaceable bracket. For instance, advantageously, the rotatable actuation rod may extend along an upper and/or lower sash member of the window sash, and the locking rod may extend along a vertical sash member of the window sash, and in this case, the displaceable bracket with associated spring may advantageously be arranged at a corner of the window sash connecting the upper and/or lower sash member with the vertical sash member.

[0018] In a structurally particularly advantageous embodiment, a first link arm has a first end fixedly connected to a first end of the rotatable actuation rod and a second end pivotally connected to a first end of a second link arm, and the second link arm has a second end pivotally connected to the displaceable bracket.

[0019] In an embodiment, the first end of the rotatable actuation rod extends through a hole in the housing of the locking system.

[0020] In a structurally particularly advantageous embodiment, the brake device comprises a track element having a first side wall and a second side wall opposed to each other and a slider guided in the track element, a second end of the rotatable actuation rod has a non-circular cross-section so that, in the second rotational position, the slider is free to slide and, in the first rotational position, the rotatable actuation rod presses the slider against the first side wall, and a stay element has a first end pivotally connected to the slider and a second end adapted to be pivotally connected to a frame of a window or door.

[0021] The present invention further relates to a window or door including a window sash or door leaf arranged movable in a frame between an open position and a closed position and including a locking system as described above.

[0022] The invention will now be explained in more detail below by means of examples of embodiments with reference to the very schematic drawing, in which

Fig. 1 is a perspective view of a window with a locking system according to the invention;

Fig. 2 is a perspective view of the locking system of the window of Fig. 1, before mounting on the window;

Fig. 3 is a perspective view of part of the window sash of Fig. 1, seen on a larger scale, and wherein a cover plate of the locking system has been removed;

Fig. 4 is a side view of part of the window sash of Fig. 1, seen on a larger scale, wherein a cover plate of the locking system has been removed, and wherein the locking system is in a locked stated;

Fig. 5 is a side view of part of the window sash of Fig. 1, seen on a larger scale, wherein a cover plate of the locking system has been removed, and wherein the locking system is in an unlocked stated;

Fig. 6 is cross-sectional view along the line VI - VI of Fig. 4;

Fig. 7 is cross-sectional view along the line VII - VII of Fig. 4;

Fig. 8 is a perspective exploded view of part of the locking system of Fig. 2, seen on a larger scale; and

Fig. 9 is a perspective exploded view corresponding to that of Fig. 8, but seen from a different angle of view.

[0023] Fig. 1 shows a window 2 including a window sash 3 arranged movable in a frame 4 between an open position and a closed position, wherein the open position is illustrated in the figure. The window 2 includes a locking system 1 according to the present invention.

[0024] Fig. 2 illustrates the locking system 1 of the window 2 illustrated in Fig. 1, before mounting of the system on the window. The locking system 1 includes a locking rod 5 adapted to be arranged displaceably in its longitudinal direction in the window sash 3 in a manner known per se, wherein the locking rod 5 is displaceable by rotation of a pivotal operating handle 6. Thereby, upon displacement of the locking rod 5, a number of locking pawls 7 are movable between a locked position and an unlocked position so that, in the mounted position of the locking system 1 on the window 2, when the window sash 3 is in its closed position and the operating handle 6 is in a locked position, the locking pawls 7 are in their locked position and engage corresponding respective not shown striking plates 8 arranged on the frame 4, and when the operating handle 6 is in an unlocked position, the locking pawls 7 are in their unlocked position out of engagement with said striking plates 8. Although the striking plates 8 are not visible in Fig. 1, the respective positions where they are mounted on the frame 4 are indicated by the reference numeral 8.

[0025] When the operating handle 6 and the locking pawls 7 are in their unlocked positions, the locking system 1 has a static friction which has to be overcome in order to bring the operating handle 6 and the locking pawls 7 away from their unlocked positions in order to initiate locking of the locking system. In order to assist the user in overcoming said static friction, the locking system 1 includes a spring element 9 arranged to be loaded to a maximum load when the operating handle 6 and the locking pawls 7 are in their unlocked positions and adapted to unload at least to a minimum load when the operating handle 6 and the locking pawls 7 are brought to their locked positions.

[0026] Referring to Figs. 3 to 9, the spring element 9 is arranged to unload gradually from the beginning to the end of the rotation of the operating handle 6 from the unlocked to the locked position. The unlocked position is illustrated in Figs. 5 and 7. The locked position is illustrated in Figs. 1 to 4 and 6. The spring load of the spring element 9 in the unlocked position of the operating handle 6 and the locking pawls 7 is lower than the spring load that would be necessary to overcome said static friction of the locking system 1 in the unlocked position without a user operating the pivotal operating handle 6. Thereby, the spring force is balanced in relation to the static friction of the locking system 1 so that the operating handle 6 may be maintained in the unlocked position when the handle is not operated, and so that the locking operation may be initiated by the user with a very little operating force being much smaller than the static friction of the locking system 1. The entire locking operation is assisted by the spring element 9, thereby greatly facilitating the locking operation performed by the user.

[0027] The spring load of the spring element 9 in the unlocked position of the operating handle 6 and the locking pawls 7 may be at least 3 per cent lower, preferably at least 6 per cent lower, and most preferred at least 10 per cent lower than the spring load that would be necessary to overcome said static friction of the locking system 1 in the unlocked position without a user operating the pivotal operating handle 6. Thereby, the operating handle 6 may be maintained in the unlocked position when the handle is not operated, also after longer use of the system, whereby the static friction may be reduced due to wear. Furthermore, a suitable balance between said spring force in relation to said static friction may be obtained so that the operating handle 6 is not operated too easy by the user, which could lead to unintentional operation of the operating handle.

[0028] As illustrated in Figs. 6 to 9, the spring element 9 has the form of a coiled spring 10 having a longitudinal direction extending substantially in parallel with the locking rod 5. A first end 11 of the coiled spring 10 is connected with the locking rod 5 and a second end 12 of the coiled spring 10 is connected with a housing 13 of the locking system 1. Furthermore, the coiled spring 10 is a compression spring, and the first end 11 of the coiled spring 10 abuts a displaceable bracket 14 connected with the locking rod 5 and the second end 12 of the coiled spring 10 abuts a part of the housing 13 of the locking system 1. It should be understood that although the housing 13 of the locking system 1 has been illustrated as a separate element, the housing may in other embodiments just as well be formed by the window sash or a door leaf.

[0029] The coiled spring 10 is arranged in a longitudinal groove 15 in the housing 13 of the locking system 1. The longitudinal groove 15 has a first end wall 16 and an opposed second end wall 17. The second end 12 of the coiled spring 10 abuts the second end wall 17 of the longitudinal groove 15, and the first end 11 of the coiled spring 10 abuts a first end 18 of the displaceable bracket 14.

[0030] The first end 18 of the displaceable bracket 14 has the form of a tab 19 arranged between the first end wall 16 of the longitudinal groove 15 and the first end 11 of the coiled spring 10. The tab 19 is adapted to slide in the longitudinal direction of the longitudinal groove 15.

[0031] The displaceable bracket 14 has a second end 20 connected with the locking rod 5, and an intermediate part 21 of the displaceable bracket 14 extends between the first end 18 of the displaceable bracket 14 and the second end 20 of the displaceable bracket 14. The intermediate part 21 of the displaceable bracket 14 covers the coiled spring 10 in the longitudinal groove 15 so that the coiled spring 10 is maintained in the longitudinal groove 15.

[0032] The second end 20 of the displaceable bracket 14 is connected to a slideable rod 24 arranged in parallel to the locking rod 5 and at a distance from the locking rod in a transverse direction of the locking rod. The slideable rod 24 is connected to the locking rod 5 by means of a connecting piece 25 extending in said transverse direction. Comparing Figs. 1 and 2, it is understood that by means of the connection between the slideable rod 24 and the locking rod 5 by means of the connecting piece 25, the locking rod 5 with locking pawls 7 and operating handle 6 has been arranged inside a sealing plane 57 of the window sash 3, and the displaceable bracket 14 with associated spring 9 has been arranged outside said sealing plane 57. In illustrated type of window sash, this arrangement is structurally particularly advantageous.

[0033] In the illustrated embodiment, the locking system 1 includes a brake device 26 adapted to, in a braking state, prevent the window sash 3 from moving in relation to the frame 4 in any position between the open position and the closed position. The locking system 1 is adapted to bring the brake device 26 into its braking state when the operating handle 6 is in its locked position, as illustrated in Figs. 1 and 2.

[0034] The brake device 26 includes a rotatable actuation rod 27. In a first rotational position of the rotatable actuation rod 27, the brake device 26 is in its braking state, and, in a second rotational position of the rotatable actuation rod 27, the brake device 26 is in a non-braking state. The rotatable actuation rod 27 is rotatable upon displacement of the locking rod 5 as explained in more detail below.

[0035] As seen particularly well in Figs. 3 to 5, the rotatable actuation rod 27 is rotatable by means of the displaceable bracket 14. A first link arm 28 has a first end 29 fixedly connected to a first end 30 of the rotatable actuation rod 27 and a second end 31 pivotally connected to a first end 32 of a second link arm 33. The second link arm 33 has a second end 34 pivotally connected to the displaceable bracket 14. The first end 30 of the rotatable actuation rod 27 extends through a hole 35 in the housing 13 of the locking system 1, as illustrated in Fig. 8.

[0036] The brake device 26 comprises a track element 36 having a first side wall and a second side wall opposed to each other and a slider 37 guided in the track element 36 as indicated in Figs. 1 and 2. A second end 38 of the rotatable actuation rod 27 has a non-circular cross-section so that, in the second rotational position, the slider 37 is free to slide and, in the first rotational position, the rotatable actuation rod 27 presses the slider 37 against the first side wall and brakes, whereby the sliding motion of the slider 37 is stopped. A stay element 39 has a first end 40 pivotally connected to the slider 37 and a second end 41 pivotally connected to the frame 4 of the window 2. The brake device 26 may furthermore be of the type which is described in WO 2011/057988 A1 (VKR Holding A/S).

[0037] In an alternative embodiment, the spring element 9 may be formed as a torsion spring, for instance arranged around the rotatable actuation rod 27 of the brake device 26. Thereby, a particularly compact arrangement of the spring element 9 in the locking system 1 may be obtained. A first end of the torsion spring may be fixed to the rotatable actuation rod 27 and a second end of the torsion spring may be fixed to the window sash 3 or door leaf.

[0038] Contemplating Figs. 6 and 7, it is also easily understood that in an alternative embodiment, the spring element 9 could have the form of a compressible block or piece of rubber or other suitable elastic material. In fact, such a compressible block or piece could replace the compression spring 10 of Figs. 6 and 7 practically without any other adaptation of the locking device. Any other suitable material or device may replace the spring element 9, such as a stack of disc springs or diaphragm springs, a gas spring, etc.

[0039] It is noted that although Figs. 6 and 7 illustrate cross-sectional views, the cut-through elements of these figures have not been hatched.

List of reference numbers

[0040] 

1

locking system

2

window

3

window sash

4

frame

5

locking rod

6

pivotal operating handle

7

locking pawl

8

striking plate

9

spring element

10

coiled spring

11

first end of coiled spring

12

second end of coiled spring

13

housing

14

displaceable bracket

15

longitudinal groove

16

first end wall of longitudinal groove

17

second end wall of longitudinal groove

18

first end of displaceable bracket

19

tab first end of displaceable bracket

20

second end of displaceable bracket

21

intermediate part of displaceable bracket

22

tab of second end of displaceable bracket

23

square hole in slideable rod

24

slideable rod

25

connecting piece

26

brake device

27

rotatable actuation rod of brake device

28

first link arm

29

first end of first link arm

30

first end of rotatable actuation rod

31

second end of first link arm

32

first end of second link arm

33

second link arm

34

second end of second link arm

35

hole in housing

36

track element of brake device

37

slider of brake device

38

second end of rotatable actuation rod

39

stay element of brake device

40

first end of stay element

41

second end of stay element

42

cover plate of housing

43

mounting screws for cover plate

44

mounting bracket for locking pawl mechanism

45

locking pawl mechanism

46

cover bracket for slideable rod

47

protrusion of housing

48

window pane

49

hinge system between window sash and frame

50

pivot bearing in first end of displaceable bracket

51

first pivot pin of second link arm

52

second pivot pin of second link arm

53

pivot bearing in second end of first link arm

54

flat side of first end of rotatable actuation rod

55

flat side of mounting hole in first link arm

56

mounting hole in first end of first link arm

57

sealing plane of window sash

Claims

1. A window (2) or door including a window sash (3) or door leaf arranged movable in a frame (4) between an open position and a closed position and a locking system (1) including a locking rod (5) arranged displaceably in its longitudinal direction in the window sash (3) or door leaf, wherein the locking rod (5) is displaceable by rotation of a pivotal operating handle (6), wherein a number of locking pawls (7) are movable between a locked position and an unlocked position upon displacement of the locking rod (5), so that, when the window sash (3) or door leaf is in its closed position and the operating handle (6) is in a locked position, the locking pawls (7) are in their locked position and engage corresponding respective striking plates (8) arranged on the frame (4), and when the operating handle (6) is in an unlocked position, the locking pawls (7) are in their unlocked position out of engagement with said striking plates (8), wherein, when the operating handle (6) and the locking pawls (7) are in their unlocked positions, the locking system (1) has a static friction which has to be overcome in order to bring the operating handle (6) and the locking pawls (7) away from their unlocked positions, wherein the locking system (1) includes at least one spring element (9) arranged to be loaded to a maximum load when the operating handle (6) and the locking pawls (7) are in their unlocked positions and adapted to unload at least to a minimum load when the operating handle (6) and the locking pawls (7) are brought to their locked positions, wherein the at least one spring element (9) is arranged to unload gradually from the beginning to the end of the rotation of the operating handle (6) from the unlocked to the locked position, wherein the spring load of the at least one spring element (9) in the unlocked position of the operating handle (6) and the locking pawls (7) is lower than the spring load that would be necessary to overcome said static friction of the locking system (1) in the unlocked position without a user operating the pivotal operating handle (6), wherein the at least one spring element (9) has the form of a coiled spring (10), wherein a first end (11) of the coiled spring (10) is connected with the locking rod (5) and a second end (12) of the coiled spring (10) is connected with a housing (13) of the locking system (1), wherein the coiled spring (10) is a compression spring, wherein the first end (11) of the coiled spring (10) abuts a displaceable bracket (14) connected with the locking rod (5) and the second end (12) of the coiled spring (10) abuts a part of the housing (13) of the locking system (1), wherein the coiled spring (10) is arranged in a longitudinal groove (15) in the housing (13) of the locking system (1), wherein the longitudinal groove (15) has a first end wall (16) and an opposed second end wall (17), wherein the second end (12) of the coiled spring (10) abuts the second end wall (17) of the longitudinal groove (15), and wherein the first end (11) of the coiled spring (10) abuts a first end (18) of the displaceable bracket (14), characterised in that the first end (18) of the displaceable bracket (14) has the form of a tab (19) being arranged between the first end wall (16) of the longitudinal groove (15) and the first end (11) of the coiled spring (10) and being adapted to slide in the longitudinal direction of the longitudinal groove (15), in that the displaceable bracket (14) has a second end (20) connected with the locking rod (5), in that an intermediate part (21) of the displaceable bracket (14) extends between the first end (18) of the displaceable bracket (14) and the second end (20) of the displaceable bracket (14), in that the intermediate part (21) of the displaceable bracket (14) covers the coiled spring (10) in the longitudinal groove (15), in that the second end (20) of the displaceable bracket (14) is connected to a slideable rod (24) arranged in parallel to the locking rod (5) and at a distance from the locking rod in a transverse direction of the locking rod, and in that the slideable rod (24) is connected to the locking rod (5) by means of a connecting piece (25) extending in said transverse direction so that the locking rod (5) with locking pawls (7) and operating handle (6) is arranged inside a sealing plane (57) of the window sash (3), and the displaceable bracket (14) with associated spring (9) is arranged outside said sealing plane (57).

2. A window or door according to claim 1, wherein the spring load of the at least one spring element (9) in the unlocked position of the operating handle (6) and the locking pawls (7) is at least 3 per cent lower, preferably at least 6 per cent lower, and most preferred at least 10 per cent lower than the spring load that would be necessary to overcome said static friction of the locking system (1) in the unlocked position without a user operating the pivotal operating handle (6).

3. A window or door according to claim 1 or 2, wherein the locking system (1) includes a brake device (26) adapted to, in a braking state, prevent the window sash (3) or door leaf from moving in relation to the frame (4) in any position between the open position and the closed position, and wherein the locking system (1) is adapted to bring the brake device (26) into its braking state when the operating handle (6) is in its locked position.

4. A window or door according to claim 3, wherein the brake device (26) is arranged outside said sealing plane (57) and may be brought form its braking state to a non-braking state by displacement of the displaceable bracket (14).

5. A window or door according to claim 3 or 4, wherein the brake device (26) includes a rotatable actuation rod (27), wherein, in a first rotational position of the rotatable actuation rod (27), the brake device (26) is in its braking state, and, in a second rotational position of the rotatable actuation rod (27), the brake device (26) is in a non-braking state, and wherein the rotatable actuation rod (27) is rotatable upon displacement of the locking rod (5).

6. A window or door according to claim 5, wherein the rotatable actuation rod (27) is rotatable by means of the displaceable bracket (14).

7. A window or door according to claim 6, wherein a first link arm (28) has a first end (29) fixedly connected to a first end (30) of the rotatable actuation rod (27) and a second end (31) pivotally connected to a first end (32) of a second link arm (33), and wherein the second link arm (33) has a second end (34) pivotally connected to the displaceable bracket (14).

8. A window or door according to claim 7, wherein the first end (30) of the rotatable actuation rod (27) extends through a hole (35) in the housing (13) of the locking system (1).

9. A window or door according to any one of the claims 5 to 8, wherein the brake device (26) comprises a track element (36) having a first side wall and a second side wall opposed to each other and a slider (37) guided in the track element (36), wherein a second end (38) of the rotatable actuation rod (27) has a non-circular cross-section so that, in the second rotational position, the slider (37) is free to slide and, in the first rotational position, the rotatable actuation rod (27) presses the slider (37) against the first side wall, and wherein a stay element (39) has a first end (40) pivotally connected to the slider (37) and a second end (41) adapted to be pivotally connected to a frame (4) of a window (2) or door.

Ansprüche

1. Fenster (2) oder Tür, enthaltend einen Fensterflügel (3) oder ein Türblatt, der bzw. das angeordnet ist, in einem Rahmen (4) zwischen einer offenen Position und einer geschlossenen Position beweglich zu sein, und ein Schließsystem (1), das eine Verschlussstange (5) beinhaltet, die in ihrer Längsrichtung in dem Fensterflügel (3) oder Türblatt verschiebbar angeordnet ist, wobei die Verschlussstange (5) durch Drehung eines schwenkbaren Bedienungsgriffs (6) verschiebbar ist, wobei eine Anzahl von Verriegelungsklinken (7) zwischen einer verriegelten Position und eine entriegelten Position bei Verschiebung der Verschlussstange (5) bewegbar ist, sodass, wenn der Fensterflügel (3) oder das Türblatt in seiner geschlossenen Position ist und der Bedienungsgriff (6) in einer verriegelten Position ist, die Verriegelungsklinken (7) in ihrer verriegelten Position sind und mit entsprechenden jeweiligen Schließblechen (8) in Eingriff sind, die auf dem Rahmen (4) angeordnet sind, und wenn der Bedienungsgriff (6) in einer entriegelten Position ist, die Verriegelungsklinken (7) in ihrer entriegelten Position aus einem Eingriff mit den Schließblechen (8) sind, wobei, wenn der Bedienungsgriff (6) und die Verriegelungsklinken (7) in ihren entriegelten Positionen sind, das Schließsystem (1) eine statische Reibung aufweist, die überwunden werden muss, um den Bedienungsgriff (6) und die Verriegelungsklinken (7) weg von ihren entriegelten Positionen zu bringen, wobei das Schließsystem (1) mindestens ein Federelement (9) beinhaltet, das angeordnet ist, auf eine maximale Last belastet zu werden, wenn der Bedienungsgriff (6) und die Verriegelungsklinken (7) in ihren entriegelten Positionen sind, und ausgebildet ist, auf mindestens eine minimale Last zu entlasten, wenn der Bedienungsgriff (6) und die Verriegelungsklinken (7) in ihre verriegelten Positionen gebracht werden, wobei das mindestens eine Federelement (9) angeordnet ist, allmählich vom Beginn zum Ende der Drehung des Bedienungsgriffs (6) aus der entriegelten zu der verriegelten Position zu entlasten, wobei die Federlast des mindestens einen Federelements (9) in der entriegelten Position des Bedienungsgriffs (6) und der Verriegelungsklinken (7) niedriger ist als die Federlast, die notwendig wäre, die statische Reibung des Schließsystems (1) in der entriegelten Position zu überwinden, ohne dass ein Benutzer den schwenkbaren Bedienungsgriff (6) bedient, wobei das mindestens eine Federelement (9) die Form einer Wendelfeder (10) aufweist, wobei ein erstes Ende (11) der Wendelfeder (10) mit der Verschlussstange (5) verbunden ist und ein zweites Ende (12) der Wendelfeder (10) mit einem Gehäuse (13) des Schließsystems (1) verbunden ist, wobei die Wendelfeder (10) eine Kompressionsfeder ist, wobei das erste Ende (11) der Wendelfeder (10) an einem verschiebbaren Bügel (14) anliegt, der mit der Verschlussstange (5) verbunden ist und das zweite Ende (12) der Wendelfeder (10) an einem Teil des Gehäuses (13) des Schließsystems (1) anliegt, wobei die Wendelfeder (10) in einer Längsrille (15) in dem Gehäuse (13) des Schließsystems (1) angeordnet ist, wobei die Längsrille (15) eine erste Stirnwand (16) und eine gegenüberliegende zweite Stirnwand (17) aufweist, wobei das zweite Ende (12) der Wendelfeder (10) an der zweiten Stirnwand (17) der Längsrille (15) anliegt und wobei das erste Ende (11) der Wendelfeder (10) an einem ersten Ende (18) des verschiebbaren Bügels (14) anliegt, dadurch gekennzeichnet, dass das erste Ende (18) des verschiebbaren Bügels (14) die Form einer Lasche (19) aufweist, die zwischen der ersten Stirnwand (16) der Längsrille (15) und dem ersten Ende (11) der Wendelfeder (10) angeordnet ist und ausgebildet ist, in der Längsrichtung der Längsrille (15) zu gleiten, dass der verschiebbare Bügel (14) ein zweites Ende (20) aufweist, das mit der Verschlussstange (5) verbunden ist, dass ein zwischenteil (21) des verschiebbaren Bügels (14) sich zwischen dem ersten Ende (18) des verschiebbaren Bügels (14) und dem zweiten Ende (20) des verschiebbaren Bügels (14) erstreckt, dass das Zwischenteil (21) des verschiebbaren Bügels (14) die Wendelfeder (10) in der Längsrille (15) bedeckt, dass das zweite Ende (20) des verschiebbaren Bügels (14) mit einer verschiebbaren Stange (24) verbunden ist, die parallel zu der Verschlussstange (5) und bei einem Abstand von der Verschlussstange in einer Querrichtung der Verschlussstange angeordnet ist, und dass die verschiebbare Stange (24) mit der Verschlussstange (5) durch ein Verbindungsstück (25) verbunden ist, das sich in der Querrichtung erstreckt, sodass die Verschlussstange (5) mit Verriegelungsklinken (7) und Bedienungsgriff (6) im Inneren einer Dichtungsebene (57) des Fensterflügels (3) angeordnet ist und der verschiebbare Bügel (14) mit zugehöriger Feder (9) außerhalb der Dichtungsebene (57) angeordnet ist.

2. Fenster oder Tür nach Anspruch 1, wobei die Federlast des mindestens einen Federelements (9) in der entriegelten Position des Bedienungsgriffs (6) und der Verriegelungsklinken (7) mindestens 3 Prozent niedriger, bevorzugt mindestens 6 Prozent niedriger und am bevorzugtesten 10 Prozent niedriger als die Federlast ist, die notwendig wäre, die statische Reibung des Schließsystems (1) in der entriegelten Position zu überwinden, ohne dass ein Benutzer den schwenkbaren Bedienungsgriff (6) bedient.

3. Fenster oder Tür nach Anspruch 1 oder 2, wobei das Schließsystem (1) eine Bremsvorrichtung (26) beinhaltet, die ausgebildet ist, in einem Bremszustand zu verhindern, dass sich der Fensterflügel (3) oder das Torblatt in Relation zu dem Rahmen (4) in einer Position zwischen der offenen Position und der geschlossenen Position bewegt, und wobei das Schließsystem (1) ausgebildet ist, die Bremsvorrichtung (26) in ihren Bremszustand zu bringen, wenn der Bedienungsgriff (6) in seiner verriegelten Position ist.

4. Fenster oder Tür nach Anspruch 3, wobei die Bremsvorrichtung (26) außerhalb der Dichtungsebene (57) angeordnet ist und durch Verschieben des verschiebbaren Bügels (14) aus ihrem Bremszustand in einen Nichtbremszustand gebracht werden kann.

5. Fenster oder Tür nach Anspruch 3 oder 4, wobei die Bremsvorrichtung (26) eine drehbare Betätigungsstange (27) beinhaltet, wobei in einer ersten Drehposition der drehbaren Betätigungsstange (27) die Bremsvorrichtung (26) in ihrem Bremszustand ist und in einer zweiten Drehposition der drehbaren Betätigungsstange (27) die Bremsvorrichtung (26) in einem Nichtbremszustand ist und wobei die drehbare Betätigungsstange (27) bei Verschiebung der Verschlussstange (5) drehbar ist.

6. Fenster oder Tür nach Anspruch 5, wobei die drehbare Betätigungsstange (27) durch den verschiebbaren Bügel (14) drehbar ist.

7. Fenster oder Tür nach Anspruch 6, wobei ein erster Verbindungsarm (28) ein erstes Ende (29), das mit einem ersten Ende (30) der drehbaren Betätigungsstange (27) verbunden ist, und ein zweites Ende (31), das schwenkbar mit einem ersten Ende (32) eines zweiten Verbindungsarms (33) verbunden ist, aufweist und wobei der zweite Verbindungsarm (33) ein zweites Ende (34) aufweist, das schwenkbar mit dem verschiebbaren Bügel (14) verbunden ist.

8. Fenster oder Tür nach Anspruch 7, wobei das erste Ende (30) der drehbaren Betätigungsstange (27) sich durch ein Loch (35) in dem Gehäuse (13) des Schließsystems (1) erstreckt.

9. Fenster oder Tür nach einem der Ansprüche 5 bis 8, wobei die Bremsvorrichtung (26) ein Schienenelement (36) mit einer ersten Seitenwand und einer zweiten Seitenwand, die einander gegenüberliegen, und einen Gleiter (37) umfasst, der in dem Schienenelement (36) geführt wird, wobei ein zweites Ende (38) der drehbaren Betätigungsstange (27) einen nicht kreisförmigen Querschnitt aufweist, sodass in der zweiten Drehposition der Gleiter (37) frei gleiten kann und in der ersten Drehposition die drehbare Betätigungsstange (27) den Gleiter (37) gegen die erste Seitenwand presst und wobei ein Gestängeelement (39) ein erstes Ende (40) aufweist, das schwenkbar mit dem Gleiter (37) verbunden ist, und ein zweites Ende (41), das ausgebildet ist, schwenkbar mit einem Rahmen (4) eines Fensters (2) oder einer Tür verbunden zu sein.

Revendications

1. Fenêtre (2) ou porte incluant un châssis de fenêtre à guillotine (3) ou un battant de porte agencé de manière mobile dans un cadre (4) entre une position ouverte et une position fermée et un système de verrouillage (1) incluant une tige de verrouillage (5) agencée de manière déplaçable dans sa direction longitudinale dans le châssis de fenêtre à guillotine (3) ou le battant de porte, dans laquelle la tige de verrouillage (5) est déplaçable par rotation d'une poignée d'actionnement pivotante (6), dans laquelle un certain nombre de cliquets de verrouillage (7) sont mobiles entre une position verrouillée et une position déverrouillée lors du déplacement de la tige de verrouillage (5) de sorte que, lorsque le châssis de fenêtre à guillotine (3) ou le battant de porte est dans sa position fermée et la poignée d'actionnement (6) est dans une position verrouillée, les cliquets de verrouillage (7) sont dans leur position verrouillée et entrent en prise avec des gâches respectives correspondantes (8) agencées sur le cadre (4), et lorsque la poignée d'actionnement (6) est dans une position déverrouillée, les cliquets de verrouillage (7) sont dans leur position déverrouillée hors de prise avec lesdites gâches (8), dans laquelle, lorsque la poignée d'actionnement (6) et les cliquets de verrouillage (7) sont dans leur position déverrouillée, le système de verrouillage (1) présente un frottement statique qui doit être maîtrisé afin d'amener la poignée d'actionnement (6) et les cliquets de verrouillage (7) à l'opposé de leur position déverrouillée, dans laquelle le système de verrouillage (1) inclut au moins un élément de ressort (9) agencé pour être chargé jusqu'à une charge maximale lorsque la poignée d'actionnement (6) et les cliquets de verrouillage (7) sont dans leur position déverrouillée et adapté pour décharger au moins jusqu'à une charge minimale lorsque la poignée d'actionnement (6) et les cliquets de verrouillage (7) sont amenés à leur position verrouillée, dans laquelle l'au moins un élément de ressort (9) est agencé pour décharger progressivement depuis le début jusqu'à la fin de la rotation de la poignée d'actionnement (6) depuis la position déverrouillée jusqu'à la position verrouillée, dans laquelle la charge de ressort de l'au moins un élément de ressort (9) dans la position déverrouillée de la poignée d'actionnement (6) et les cliquets de verrouillage (7) est inférieure à la charge de ressort qui serait nécessaire pour maîtriser ledit frottement statique du système de verrouillage (1) dans la position déverrouillée sans qu'un utilisateur n'actionne la poignée d'actionnement (6), dans laquelle l'au moins un élément de ressort (9) a la forme d'un ressort hélicoïdal (10), dans laquelle une première extrémité (11) du ressort hélicoïdal (10) est raccordée à la tige de verrouillage (5) et une seconde extrémité (12) du ressort hélicoïdal (10) est raccordée à un boîtier (13) du système de verrouillage (1), dans laquelle le ressort hélicoïdal (10) est un ressort de compression, dans laquelle la première extrémité (11) du ressort hélicoïdal (10) entre en butée avec un support déplaçable (14) raccordé à la tige de verrouillage (5) et la seconde extrémité (12) du ressort hélicoïdal (10) entre en butée avec une partie du boîtier (13) du système de verrouillage (1), dans laquelle le ressort hélicoïdal (10) est agencé dans une rainure longitudinale (15) dans le boîtier (13) du système de verrouillage (1), dans laquelle la rainure longitudinale (15) présente une première paroi d'extrémité (16) et une seconde paroi d'extrémité opposée (17), dans laquelle la seconde extrémité (12) du ressort hélicoïdal (10) entre en butée avec la seconde paroi d'extrémité (17) de la rainure longitudinale (15), et dans laquelle la première extrémité (11) du ressort hélicoïdal (10) entre en butée avec une première extrémité (18) du support déplaçable (14), caractérisée en ce que la première extrémité (18) du support déplaçable (14) a la forme d'une languette (19) étant agencée entre la première paroi d'extrémité (16) de la rainure longitudinale (15) et la première extrémité (11) du ressort hélicoïdal (10) et étant adaptée pour coulisser dans la direction longitudinale de la rainure longitudinale (15), en ce que le support déplaçable (14) présente une seconde extrémité (20) raccordée à la tige de verrouillage (5), en ce qu'une partie intermédiaire (21) du support déplaçable (14) s'étend entre la première extrémité (18) du support déplaçable (14) et la seconde extrémité (20) du support déplaçable (14), en ce que la partie intermédiaire (21) du support déplaçable (14) recouvre le ressort hélicoïdal (10) dans la rainure longitudinale (15), en ce que la seconde extrémité (20) du support déplaçable (14) est raccordée à une tige coulissante (24) agencée en parallèle à la tige de verrouillage (5) et à une distance de la tige de verrouillage dans une direction transversale de la tige de verrouillage, et en ce que la tige coulissante (24) est raccordée à la tige de verrouillage (5) au moyen d'une pièce de raccord (25) s'étendant dans ladite direction transversale de sorte que la tige de verrouillage (5) avec des cliquets de verrouillage (7) et la poignée d'actionnement (6) soit agencée à l'intérieur d'un plan d'étanchéité (57) du châssis de fenêtre à guillotine (3), et le support déplaçable (14) avec un ressort associé (9) est agencé à l'extérieur dudit plan d'étanchéité (57).

2. Fenêtre ou porte selon la revendication 1, dans laquelle la charge de ressort de l'au moins un élément de ressort (9) dans la position déverrouillée de la poignée d'actionnement (6) et des cliquets de verrouillage (7) est au moins 3 pour cent inférieure, de préférence au moins 6 pour cent inférieure, et le plus préférentiellement au moins 10 pour cent inférieure à la charge de ressort qui serait nécessaire pour maîtriser ledit frottement statique du système de verrouillage (1) dans la position déverrouillée sans qu'un utilisateur n'actionne la poignée d'actionnement pivotante (6).

3. Fenêtre ou porte selon la revendication 1 ou 2, dans laquelle le système de verrouillage (1) inclut un dispositif de freinage (26) adapté pour, dans un état de freinage, empêcher le châssis de fenêtre à guillotine (3) ou le battant de porte de se déplacer par rapport au cadre (4) dans toute position entre la position ouverte et la position fermée, et dans laquelle le système de verrouillage (1) est adapté pour amener le dispositif de freinage (26) dans son état de freinage lorsque la poignée d'actionnement (6) est dans sa position verrouillée.

4. Fenêtre ou porte selon la revendication 3, dans laquelle le dispositif de freinage (26) est agencé à l'extérieur dudit plan d'étanchéité (57) et peut être amené de son état de freinage à un état de non-freinage par un déplacement du support déplaçable (14).

5. Fenêtre ou porte selon la revendication 3 ou 4, dans laquelle le dispositif de freinage (26) inclut une tige d'actionnement rotative (27), dans laquelle, dans une première position de rotation de la tige d'actionnement rotative (27), le dispositif de freinage (26) est dans son état de freinage et, dans une seconde position de rotation de la tige d'actionnement rotative (27), le dispositif de freinage (26) est dans un état de non-freinage, et dans laquelle la tige d'actionnement rotative (27) peut tourner lors du déplacement de la tige de verrouillage (5).

6. Fenêtre ou porte selon la revendication 5, dans laquelle la tige d'actionnement rotative (27) peut tourner au moyen du support déplaçable (14).

7. Fenêtre ou porte selon la revendication 6, dans laquelle un premier bras de liaison (28) présente une première extrémité (29) raccordée de manière fixe à une première extrémité (30) de la tige d'actionnement rotative (27) et une seconde extrémité (31) raccordée de manière pivotante à une première extrémité (32) d'un second bras de liaison (33), et dans laquelle le second bras de liaison (33) présente une seconde extrémité (34) raccordée de manière pivotante au support déplaçable (14).

8. Fenêtre ou porte selon la revendication 7, dans laquelle la première extrémité (30) de la tige d'actionnement rotative (27) s'étend à travers un trou (35) dans le boîtier (13) du système de verrouillage (1).

9. Fenêtre ou porte selon l'une quelconque des revendications 5 à 8, dans laquelle le dispositif de freinage (26) comprend un élément de trajectoire (36) présentant une première paroi latérale et une seconde paroi latérale opposées l'une à l'autre et un élément coulissant (37) guidé dans l'élément de trajectoire (36), dans laquelle une seconde extrémité (38) de la tige d'actionnement rotative (27) présente une section transversale non circulaire de sorte que, dans la seconde position de rotation, l'élément coulissant (37) soit libre de coulisser et, dans la première position de rotation, la tige d'actionnement rotative (27) presse l'élément coulissant (37) contre la première paroi latérale, et dans laquelle un élément d'arrêt (39) présente une première extrémité (40) raccordée de manière pivotante à l'élément coulissant (37) et une seconde extrémité (41) adaptée pour être raccordée de manière pivotante à un cadre (4) d'une fenêtre (2) ou d'une porte.

Drawing