EP2816178B1 - Fitting for windows or doors - Google Patents

Description

The present invention relates to a fitting for opening and closing a sash of a window or a door, having a drive section movable for locking and unlocking the sash and a handle for actuating the drive section.

Such fittings are commonly used to open or close windows or doors or to tilt them. As a handle, a rotary handle is often provided, which is rotatable, for example, about an axis of rotation and coupled directly to the likewise rotatable drive section.

Customers of windows or doors are becoming increasingly demanding in terms of their optical design. In this regard, in particular a protruding from the wing knob is perceived as a drawback. Furthermore, protruding handles can be problematic with sliding doors sliding against each other, as they may interfere with a sliding over the wings or make impossible. However, in view of a good accessibility and thus a good operability of the handle, it is essential to space it clearly from the wing surface.

The WO 99/46464 A2 discloses a snap lock for cabinet doors and the like, which is operable via a button. The button is adjustable between a retracted position and an extended position.

It is an object of the invention to improve the visual appearance of windows and doors while ensuring easy and intuitive opening and closing of the window and door leaves.

The object is achieved by a fitting with the features of claim 1.

In a fitting according to the invention the handle can be brought by pressing on an activation section from a retracted position to an extended position and the drive section is movable by pulling on the extended handle in an unlocked position. In the retracted state, the handle may be located at a relatively small distance from the wing or even completely sunk in this. The handle requires little space in this position and affects the visual appearance of the window or the door only minimally. A good operability is still guaranteed because a user by simply pressing on the activation section can cause an extension of the handle. In the extended state, the handle can then be easily grasped by the user to exert a tensile force. By such a train on the handle of the wing is unlocked and can be mounted. Of particular advantage here is that the mounting of the wing can be done in principle in the same direction of movement as the tightening on the handle for unlocking the wing. The invention thus enables easy opening of a wing of a window or door by means of an inconspicuous handle.

According to the invention, the drive portion for locking and unlocking the wing is rotatable about a rotation axis, wherein a transmission is provided, by means of which a linear displacement movement of the handle can be converted into a rotational movement of the drive section. In fact, in many cases, a linear movement can be achieved with less effort than a rotary movement. In addition, a pulling motion is more ergonomic than a rotary motion, as it more closely matches the actual desire of the user to open the wing. Due to the transmission, a linearly displaceable handle can also be used in such fittings, which basically have a rotatable drive section.

According to the invention, the handle between the retracted position and the extended position is linearly displaceable. Compared to a swing or flaps this has the advantage that in the retracted position no exposed lever arm must be present. The dimensions of the handle in the wing plane can thus be reduced to a minimum, which gives the wing a particularly appealing appearance.

Further developments of the invention are specified in the dependent claims, the description and the accompanying drawings.

The transmission may include a rack portion provided on the handle and a gear member cooperating with the rack portion. This allows a particularly simple construction. In principle, a spindle drive or a crank drive could also be provided.

An embodiment of the invention provides that the handle has a base portion and a handle portion, wherein the handle portion for retracting and extending the handle relative to the base portion is movable and the handle portion is movable together with the base portion for unlocking the wing relative to a bearing portion of the fitting. The retraction and extension movement is thus of the unlocking decoupled. The transition from an extension movement of the grip portion relative to the base portion to an unlocking movement of the base portion and the grip portion may be defined, for example, by stopping the extending grip portion at a stop of the base portion.

The grip portion can be biased in particular by means of a spring device relative to the base portion in the direction of the extended position and be locked by means of a holding device in the retracted position. To extend the handle portion, a user must therefore expend no force, but only solve the lock. The operation can be further facilitated thereby.

The holding device may comprise an effective between the base portion and the handle portion positive guide which defines a control cam with at least one undercut. For example, a guide pin provided on the handle portion can slidably engage in a recess provided on the base portion or a component connected thereto, which defines a movement path for the guide pin. The trajectory can be designed such that the guide pin comes with a pressure on the activation portion of the handle portion from engagement with the undercut and engages in a repeated pressing on the activation section back into the undercut. Such a mechanism is known from ballpoint pens. It can be used here in an advantageous manner to both retract the handle of a fitting depending on the state by one and the same pushing movement and extend.

A special embodiment of the invention provides that the handle comprises a push button, the front surface of the activation section forms, in particular, the front surface is circular. Such a push button is unobtrusive and visually appealing.

A further embodiment of the invention provides that the drive section is biased by means of a spring device into a locking position. The wing is thus always automatically locked as soon as the handle is omitted. The user then does not have to perform a separate actuation movement to lock the sash so that the operation of the fitting is further simplified.

The invention also relates to a fitting arrangement with a fitting to be mounted on the sash of a window or a door as described above and a closing part to be attached to the frame of the window or door, which has at least one receiving opening for receiving a locking element of the fitting.

According to the invention, the receiving opening is delimited by an edge section facing this when the wing is open, which forms a ramp for the locking element. In this way, in the case of closing the wing in the locked state, a hard abutment of the locking element on the closing part is prevented. Rather, the locking element is collected soft by the impact slope.

At least one locking contour engaging behind the locking element can follow the ramp section. The locking element can then run over the ramp and engage in the engaging behind retaining contour. In this way, it is possible to close a locked wing merely by pushing or pushing without performing a separate locking operation.

A preferred embodiment of the invention provides that the receiving opening of the closing part defines at least two retaining contours arranged one after the other with respect to a closing movement of the wing, in particular wherein the at least two retaining contours are delimited by respective ramp sections. Thereby it is e.g. possible to lock the sash even in a not completely closed ventilation position. The user may then decide during the closing movement whether he wishes to push the wing only to the ventilation position or to the fully closed position.

It is preferred that the handle is recessed in the retracted position in the wing. This means that in the retracted state preferably no component of the handle protrudes from the wing. This results in a particularly appealing appearance. In addition, it is possible with a sliding door to push the wing at a relatively short distance over an adjacent wing.

Preferably, only the activation section is exposed when the handle is in the retracted position. The activation section must be exposed in any case so that a user can press on it. However, it is preferred if all other components of the handle in the retracted position are not exposed, so are sunk in the wing. The handle is in this state for a user from the outside particularly inconspicuous.

It is further preferred that the handle in the raised position at least partially protrudes from a surrounding surface region of the wing, thereby enabling a gripping of the handle.

A special embodiment of the invention provides that the handle is flush with a surrounding surface area of the wing when it is in the retracted position. The handle then has in the retracted position an appearance reminiscent of the control knob of a modern mobile phone. This results in comparison with known rotary handles completely novel design options.

The wing can also be designed frameless, so that it is formed, for example, on a room inside completely by a single pane of glass. A retractable handle fits into such a wing particularly harmonious, since only a minimal, flush with the glass front surface of the handle must be excluded as to be pressed activation section of the unitary surface. Such a configuration is inter alia interesting because a user who is unfamiliar with the mechanism of the handle can not initially explain in what way an intangible, flush-mounted pushbutton should enable a wing opening.

Preferably, the handle is transversely movable to the plane defined by the wing. In the extended state, the handle is thus maximally from the wing, whereby a particularly easy operation is possible.

Fig. 1

zeigt eine vereinfachte Darstellung eines erfindungsgemäßen Fensters mit einem erfindungsgemäßen Beschlag.

Fig. 2

ist eine perspektivische Explosionsdarstellung eines erfindungsgemäßen Beschlags.

Fig. 3

ist eine Seitenansicht des Beschlags gemäß Fig. 2.

Fig. 4

ist eine vergrößerte perspektivische Explosionsdarstellung eines Teils des Beschlags gemäß Fig. 2.

Fig. 5

zeigt die in Fig. 4 dargestellte Anordnung in zusammengesetztem Zustand.

Fig. 6

ist eine Explosionsdarstellung einer Handhabe eines erfindungsgemäßen Beschlags von der Seite.

Fig. 7

zeigt die Handhabe gemäß Fig. 6 von oben.

Fig. 8

ist eine perspektivische Darstellung eines Schließteils einer erfindungsgemäßen Beschlaganordnung.

Fig. 9

ist eine Draufsicht auf das in Fig. 8 dargestellte Schließteil.

The invention will now be described by way of example with reference to the drawings.

Fig. 1

shows a simplified representation of a window according to the invention with a fitting according to the invention.

Fig. 2

is an exploded perspective view of a fitting according to the invention.

Fig. 3

is a side view of the fitting according to Fig. 2 ,

Fig. 4

is an enlarged exploded perspective view of a portion of the fitting according to Fig. 2 ,

Fig. 5

shows the in Fig. 4 illustrated arrangement in the assembled state.

Fig. 6

is an exploded view of a handle of a fitting according to the invention from the side.

Fig. 7

shows the handle according to Fig. 6 from above.

Fig. 8

is a perspective view of a closing part of a fitting assembly according to the invention.

Fig. 9

is a top view of the in Fig. 8 illustrated closing part.

This in Fig. 1 Window represented by way of example comprises a frame 11 and a glass wing 13 which is movable relative to the frame 11. To open and close the wing 13, a fitting 15 is provided, which can be designed as a rotary fitting or as a turn-tilt fitting. In principle, the wing 13 could also be displaceable relative to the frame 11.

For actuating the fitting 15 by a user, a handle 17 is provided, which here comprises a push button 19 with a circular cross-section. The handle 17 is adjustable between a retracted position in which it is recessed in the wing 13, and an extended position in which it protrudes from the wing 13. In the retracted position, the flat front surface of the push button 19 is flush with the glass surface of the wing 13 and forms an activation section 20. Since the wing 13 is frameless, it defines a uniform planar surface when the handle 17 is in the retracted position ,

By pressing on the activation section 20, the handle 17 can be brought into the extended position. Furthermore, the wing 13 can be unlocked by pulling on the extended handle 17 relative to the frame 11, as will be explained in more detail below.

Like from the Fig. 2-7 As can be seen, the handle 17 comprises a cuboid base section 22 (FIG. Fig. 4 ), which is guided along a displacement axis V linearly displaceable in a bearing portion 23 of the fitting 15. At the base portion 22, a rack portion 25 is formed, which engages with a gear segment 27. The gear segment 27 is drive-effectively coupled with a drive section not visible in the figures, which is designed for example as a rotatable drive nut and finally the desired positioning of the locking elements 28 via other hardware or transmission components (FIG. Fig. 2 ), as is generally known. Thus, by a linear movement of the base portion 22 in the bearing portion 23, the wing 13 can be locked and unlocked. Out Fig. 2 and 3 shows that the locking elements 28 are biased by means of tension springs 32 in the locking position.

Like from the 6 and 7 it can be seen, the push button 19 of the handle 17 is disc-shaped and forms together with a bolt 29 a handle portion 30 which is displaceable along the displacement axis V relative to the base portion 22. For this purpose, the base portion 22 is designed as a hollow body, wherein in the interior of a first, connected to the handle portion 30 guide member 31 is slidably received. The first guide member 31 is supported by a compression spring 33 on a bottom plate 35 of the base portion 22. Furthermore, in the base portion 22, a second guide member 37 is arranged, which partially surrounds the first guide member 31 and has a recess 39 facing this. This recess 39 forms a cam with a branch 41 and an undercut 43. A projecting from the first guide member 31 guide pin 45 is slidably received in the recess 39 of the second guide member 37. When the guide pin 45 is in the undercut 43, the handle portion 30 is locked against the biasing force of the compression spring 33 relative to the base portion 22, so that the handle 17 permanently assumes the retracted position.

At a pressure on the activation section 20 of the guide pin 45 comes out of engagement with the undercut 43 and is by means of a first inclined surface 47 of the recess 39 on the in Fig. 7 lower part of the recess 39 forced. In this slides the guide pin 45 driven by the compression spring 33 in an extension direction A, so that the push button 19 connected to the first guide member 31 extends. When pressed again on the activation section 20, the guide pin 45 slides against the extension direction A in the recess 39 back and passes at the junction 41 on a second inclined surface 49, which puts him on the in Fig. 7 upper part of the recess 39 forces. At the end of the guide pin 45 engages again in the undercut 43, so that the handle 17 occupies a total again the retracted position.

With reference to the 8 and 9 Now a closing part 50 of the in Fig. 1-3 described fitting 15 described. The closing part 50 is to be attached to the frame 11 of the window, for which purpose two fastening holes 51 are provided. On one side, the closing part 50 has a receiving opening 53 for receiving a locking element 28 of the fitting 15. The receiving opening 53 is delimited by a first ramp section 55 facing the latter when the wing 13 is open, which forms a ramp for the locking element 28. The first ramp section 55 is adjoined by a first retaining contour 57 engaging behind the locking element 28. This is followed by a second ramp section 59 and a subsequent second retaining contour 61.

To open the wing 13, a user presses on the front surface of the push button 19, which forms the activation section 20. As a result, inside the base portion 22 of the handle 17, the guide pin 45 is disengaged from the undercut 43 and the handle portion 30 moves in the extension direction A relative to the base portion 22 until the first guide member 31 abuts against the front side of the cavity in the base portion 22. The push button 19 emerges in this way so far from the wing 13 that the user can grab and pull on him. Due to the tensile force, the grip portion 30 and the base portion 22 are moved together relative to the bearing portion 23 in the extension direction A, wherein the arrangement from the rack portion 25 and the gear segment 27, the linear displacement movement converts into a rotational movement of the drive section. The rotation of the drive section is ultimately implemented by means of further drive rod elements in an unlocking movement of the locking elements 28. The wing 13 is thus unlocked and the user can eg raise it directly on the push button 19. As soon as the user releases the push-button 19, the tension springs 32 ensure that the locking elements 28 move back into the locking position and the base section 22 again into the retracted position.

To close the wing 13 only has to be pressed. This can be done on any part of the wing 13, that is, the handle 17 does not necessarily have to be taken for this. When the wing 13 strikes the frame 11, the locking element 28 abuts against the first ramp portion 55 of the associated closing part 50 and is thereby temporarily pressed into the unlocking position. In this way, the locking element 28 engage in the first holding contour 57. The wing 13 is then locked in a ventilation position. Upon further pressing of the wing 13, the locking element 28 passes over the second ramp section 59 and finally reaches the second retaining contour 61. In this state, the wing 13 is completely closed and locked. The handle 17 is again completely recessed in the wing 13, wherein only the front surface of the push button 19 is exposed.

LIST OF REFERENCE NUMBERS

11

frame

13

wing

15

fitting

17

handle

19

push-button

20

activating section

22

base section

23

bearing section

25

Rack section

27

gear segment

28

locking element

29

bolt

30

handle portion

31

First guide member

32

mainspring

33

compression spring

35

baseplate

37

Second guide member

39

recess

41

branch

43

undercut

45

spigot

47

first inclined surface

49

second inclined surface

50

closing part

51

mounting hole

53

receiving opening

55

First ramp section

57

First holding contour

59

Second ramp section

61

Second holding contour

V

displacement axis

A

of extension

Claims (14)

1. A fitting (15) for opening and closing a leaf (13) of a window or of a door, comprising a drive section which is movable for latching and unlatching the leaf (13); and a handle (17) for actuating the drive section, wherein
   the handle (17) can be brought out of a retracted position into an extended position by a pushing onto an activation section (20) and the drive section can be moved into an unlatched position by a pulling at the extended handle (17); and wherein the handle (17) is linearly displaceable between the retracted position and the extended position,
   characterized in that
   the drive section is rotatable about an axis of rotation for latching and unlatching the leaf (13), with a gear (25, 27) being provided by means of which a linear displacement movement of the handle (17) can be converted into a rotational movement of the drive section.
2. A fitting in accordance with claim 1,
   characterized in that
   the gear (25, 27) comprises a gear rack section (25) provided at the handle (17); and a toothed wheel element (27) cooperating with the gear rack section.
3. A fitting in accordance with one of the preceding claims,
   characterized in that
   the handle (17) has a base section (22) and a grip section (30), with the grip section (30) being movable with respect to the base section (22) in order to retract and extend the handle (17), and with the grip section (30) being movable together with the base section (22) with respect to a bearing section (23) of the fitting (15) in order to unlatch the leaf (13).
4. A fitting in accordance with claim 3,
   characterized in that
   the grip section (30) is preloaded with respect to the base section (22) in the direction of the extended position by means of a spring device (33) and can be fixed in the retracted position by means of a holding apparatus (31, 37).
5. A fitting in accordance with claim 4,
   characterized in that
   the holding apparatus (31, 37) comprises a compulsory guide which is effective between the base section (22) and the grip section (30) and which defines a control cam having at least one undercut (43).
6. A fitting in accordance with any one of the preceding claims,
   characterized in that
   the handle (17) comprises a push button (19) whose front surface forms the activation section (20), with the front surface in particular being circular.
7. A fitting in accordance with any one of the preceding claims,
   characterized in that
   the drive section is preloaded into a latched position by means of a spring device (32).
8. A fitting arrangement comprising a fitting (15) which is to be attached to a leaf (13) of a window or of a door and which is configured in accordance with any one of the preceding claims; and a striker plate (50) which is to be attached to a frame (11) of the window or of the door and which has at least one reception opening (53) for receiving a latching element (28) of the fitting (15),
   characterized in that
   the reception opening (53) is bounded by a ramp section (55) which faces it when the leaf (13) is open and which forms a run-up slope for the latching element (28).
9. A fitting arrangement in accordance with claim 8,
   characterized in that
   at least one holding contour (57) engaging behind the latching element (28) adjoins the ramp section (55).
10. A fitting arrangement in accordance with claim 9,
    characterized in that
    the reception opening (53) of the striker plate (50) defines at least two holding contours (57, 61) which are arranged behind one another with respect to a closing movement of the leaf (13), with the at least two holding contours in particular being bounded by respective ramp sections (55, 59).
11. A window or a door comprising a leaf (13) which is movable with respect to a frame (11); and a fitting (15) which is to be attached to the leaf (13) and which is configured in accordance with any one of the claims 1 to 7,
    characterized in that
    the handle (17) is lowered in the leaf (13) in the retracted position.
12. A window or a door in accordance with claim 11,
    characterized in that
    only the activation section (20) is exposed when the handle (17) is in the retracted position; and/or in that,
    in the extended position, the handle (17) at least partly projects from a surface region of the leaf (13) which surrounds it.
13. A window or a door in accordance with one of the claims 11 or 12, characterized in that
    the handle (17) is in areal alignment with a surface region of the leaf (13) which surrounds it when it is in the retracted position.
14. A window or a door in accordance with any one of the claims 11 to 13,
    characterized in that
    the leaf (13) is configured as frameless; and/or in that the handle (17) is movable transversely to the plane defined by the leaf (13).

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