EP2811096B1 - Closing device for door or window wings - Google Patents

Description

The invention relates to a collection device for a wing of a door or a window according to the preamble of claim 1.

From the DE 195 24 779 A1 is a door closer with a switchable freewheel function known. In a filled with a hydraulic fluid housing, a piston is slidably disposed against a spring. The piston is connected via a toothing and a pinion via a lever arrangement with a wing of a door. The spring which is supported on the piston is at the other end supported on a separating piston which is likewise displaceable in the housing and which is hydraulically switchable. Thereby, the spring can be kept in a tensioned state between the piston and the separating piston, whereby a freewheel for the wing of the door can be effected. The arrangement is complex, and it is a hydraulic switching device required. An automatic collection of the freely movable wing near the closed position of the wing in the closed position is not provided.

From the DE 34 33 891 A1 a locking device for a door closer is known, wherein a cam gear of the door closer can be blocked by designed as balls locking members are applied to a cross-sectional widening of a displaceable hollow cylinder by the inclined surface of a cone part and supported against the inner surface of the hollow cylinder outwardly. The disadvantage is only a detection of the door closer in an open position of the wing of the door, the determination is complicated and costly switched by an electromagnet.

In the GB 1 337 873 a door closer is described which has a door locking device. By overriding two balls by force the door is detected in the open position.

From the WO 00/52291 a door closer is known, on the one hand a conventional damper with a piston in a cylinder, by a push spring in the closing direction and, on the other hand, a damper assembly associated with drive springs to regulate the rate of closing the door.

The DE 10 2009 000 539 A1 discloses a door closer with a housing and with a guided in the housing, a piston rod having pistons. Furthermore, a spring is arranged in the housing, which is acted upon when opening the wing and is designed for automatic closing of the wing. It is provided a locking device for detecting the piston in the working cylinder, with an axial blocking possibility of the piston via locking means of the locking device. To determine the piston in the closing direction, a holding pin arranged on the piston rod is supported on the housing with the locking device activated via a detent rocker against the force of the spring.

The disadvantage here is a complex and costly locking the spring of the door closer by switching an electromagnet. A retraction of the wing in the closed position is not possible with detected spring.

The invention has for its object to provide a collection device for a wing of a door or a window, wherein the wing is largely free to move, but also safely guided in its closed position.

The object is solved by the features of claim 1.

The subclaims form advantageous embodiments of the invention.

The collection device is provided for a pivotable door whose wings are mounted in hinges on a frame. The collection device is constructed so that the wing is freely movable over a wide range, as if no device is arranged on the door. In the area near the closed position of the wing of the wing is actively drawn into this closed position. The retraction movement is additionally damped to avoid a sharp slamming of the wing. Furthermore, the pull-in damping may optionally provide a position for the open position of the wing, wherein the wing is pulled close to this open position in this position.

The collection device has a spring formed as energy storage, which attracts the wing near the closed position. In order to enable a free movement of the wing, at least one freewheel device is provided, which makes it possible to decouple the wing from the energy storage. Similar to a manual door closer, the wing of the door is operatively connected via a linkage to a pinion which meshes with a toothing of a piston displaceably arranged in the draw-in device. On the piston, a piston rod is arranged, with which the piston can be coupled via the freewheel device with the spring. Advantageously, the coupling is only at small opening angles of the wing of the door, so that afterwards the wing is freely movable. When the wing is returned close to the closed position, the coupling between spring and piston is restored. The tensioned in the initial opening movement spring releases the energy stored in it again, and the wing is guided into its closed position.

According to the invention, an additional coupling takes place in an open position of the wing, so that the wing is raised to this open position, wherein the wing is also freely movable in the area between the open position and the area near the closed position, from which the entry into the closed position ,

In the following, exemplary embodiments are explained in more detail in the drawing with reference to FIGS.

Fig. 1

einen Ausschnitt eines Flügels einer Tür mit zugehörigem Rahmen und mit einem Teilschnitt der Einbausituation einer integrierten Einzugsvorrichtung;

Fig. 2a-2c

ein nicht erfindungsgemäßes Ausführungsbeispiel der Einzugsvorrichtung mit einer Freilaufeinrichtung;

Fig. 3a-3b

ein nicht erfindungsgemäßes Ausführungsbeispiel der Einzugsvorrichtung mit einer alternativen Ausgestaltung der Freilaufeinrichtung;

Fig. 4a-4e

ein erstes erfindungsgemäßes Ausführungsbeispiel der Einzugsvorrichtung mit einer zweiten Freilaufeinrichtung für ein Aufziehen des Flügels in eine Offenstellung;

Fig. 5a-5c

ein weiteres erfindungsgemäßes Ausführungsbeispiel der Einzugsvorrichtung mit zwei Freilaufeinrichtungen, jedoch mit zwei Federn.

Showing:

Fig. 1

a detail of a wing of a door with associated frame and a partial section of the installation situation of an integrated collection device;

Fig. 2a-2c

a non-inventive embodiment of the collection device with a freewheel device;

Fig. 3a-3b

a non-inventive embodiment of the collection device with an alternative embodiment of the freewheel device;

Fig. 4a-4e

a first inventive embodiment of the retraction device with a second freewheel device for mounting the wing in an open position;

Fig. 5a-5c

Another inventive embodiment of the collection device with two freewheel devices, but with two springs.

In the Fig.1 an intake device 3 integrated in a wing 1 of a door for the pivotally hinged wing 1 together with an associated frame 2 is shown.

In the frame 2, a slide rail 4 is installed, in which a slider 5 is guided. The slider 5 is rotatably disposed at one end of an actuating arm 6, wherein the other end of the actuating arm 6 is rotatably connected to a shaft 8 of the feeder device 3. The collection device 3 can also be integrated in the frame 2 and the slide rail 4 in the wing 1. Also possible is a resting on the wing 1 or the frame 2 arrangement of the collection device 3 and the slide rail 4th In the FIGS. 2a to 2c and FIGS. 3a and 3b show exemplary embodiments of simple embodiments of collection devices 3 which are not according to the invention.

The intake device 3 has a filled with a hydraulic fluid housing 7, in which the shaft 8 is rotatably mounted. In a receiving space 9 in the housing 7, a piston 10 is arranged, which comprises a toothing 11, a damping piston 12 and a spring piston 14. At the end, the receiving space 9 of the housing 7 can be sealingly closed on one or both sides with a closure lid. A pinion 13 of the shaft 8 cooperates with the toothing 11 of the piston 10 to its displacement. The damping piston 12 and the spring piston 14 are sealed against the inner wall of the receiving space 9 of the housing 7 out. On the spring piston 14, a spring 15 act as energy storage, the spring 15 is partially ineffective switchable by a freewheel device 16. The spring 15 can be supported at the end on the housing 7 or on the spring-side closure lid.

The damping piston 12 closes a damping chamber 17 within the filled with hydraulic fluid receiving space 9 in the housing 7, wherein a valve 18 may be arranged in the damping piston 12, with which an overflow of the hydraulic fluid from or into the damping chamber 17 and thus the damping behavior of the collection device. 3 can be influenced. In the spring piston 14, a valve 18 may also be arranged to allow at least in one direction of movement, a flow through the spring piston 14. Alternatively or additionally, one or more overflow channels can be arranged in the housing 7, in which externally accessible, adjustable valves 18 can be arranged to influence the behavior of the collection device.

On the spring piston 14, a cylindrical piston rod 19, for example, by screwing in a thread on the spring piston 14 or by pressing, set. At the other end, the piston rod 19 is tapered, wherein a circumferential slope 20 is designed to control the freewheel device 16. Furthermore, a receptacle for the engagement of a tool may be provided at the end on the piston rod 19 in order to screw the piston rod 19 into the thread in the spring piston 14. The piston rod 19 is guided in a driver 21, which in turn is received in a locking sleeve 22 and guided. The driver 21 has in the direction of the spring 15 toward a collar 25 as a contact surface for the spring 15. The locking sleeve 22 has circumferentially advantageous a plurality of spaced recesses 26, in which locking elements 23 are arranged. The latching sleeve 22 is supported on a support ring 24 in the housing 7 in the direction of the spring piston 14. The locking elements 23 may be balls. In another embodiment of the freewheel device 16, a rectangular or polygonal, for example hexagonal, piston rod 19 is conceivable, wherein the locking elements 23 may then be rollers. The driver 21 and the locking sleeve 22 are accordingly adapted to form the rectangular or polygonal shape.

In the Fig. 2a is the collection device 3 in the starting position with the wing 1 closed the door or window. The prestressed mounted spring 15 is supported on the end side on the closure lid of the receiving space 9. Andernends is the spring 15 on the collar 25 of the driver 21, whereby the Driver 21 is acted upon in the direction of the spring piston 12. The locking elements 23 are located in the tapered region of the piston rod 19 in abutment with the bevel 20. The recorded in the recesses 26 of the driver 21 locking elements 23 are located within the locking sleeve 22. There is a coupling between the piston rod 19 and the Driver 21.

Fig. 2b shows the collection device 3 in a position with about 30 ° open wing 1. By the movement of the piston 10, the piston rod 19 is displaced in the direction of the spring 15, wherein the voltage applied to the bevel 20 and in the recesses 26 of the driver 21st received latching elements 23 of the driver 21 is taken in the direction of the spring 15, whereby the resting on the collar 25 of the driver 21 spring 15 is tensioned according to the displacement. In the Fig. 2b the transition is shown at which the locking elements 23 can just leave the area within the locking sleeve 22, since the locking elements 23 can escape through the recesses 26 in the extended area behind the locking sleeve 22. In the further displacement movement of the piston 10 by further opening of the wing 1, the locking elements 23 are therefore urged along the slope 20 to the outside, whereby the locking elements 23 slide on the outer diameter of the piston rod 19.

In the Fig. 2c is the collection device 3 in still open position of the wing 1, for example, at about 70 ° shown. Are the locking elements 23 in the compressed by the piston rod 19 outwardly position, the locking elements 23 support the force of the spring 15 against the latching sleeve 22 from. The spring 15 is thus ineffective with respect to the piston 10. A movement of the piston 10 is freely possible in this freewheel area without the action of force by the spring 15, whereby the wing 1 of the door can be moved freely.

If the freely movable wing 1 is guided in the direction of its closed position, the position is again in accordance with Fig. 2b achieved, wherein the locking elements 23 by the force of the spring 15 along a arranged on the latching sleeve 22 sleeve slope 27 in the recess 26 in the driver 21 in the tapered region of the piston rod 19 in abutment with the bevels 20 are pushed back. This results in a force transmission of the force of the spring 15 via the driver 21, the locking elements 23 and the bevels 20 on the piston rod 19, whereby the piston 10 is moved in the closing direction of the wing 1. There is again a coupling between the spring 15 and the piston rod 19 through the freewheel device 16. The wing 1 is thus guided from the here exemplarily selected opening angle of about 30 ° by the collection device 3 in the closed position.

In the FIGS. 3a and 3b a further non-inventive embodiment is shown, wherein the piston rod 19 has the locking elements 23 adapted shaped recesses 28 for controlling the freewheel device 16. Instead of a plurality of recesses 28 and an annular circumferential recess 28 may be provided on the piston rod 19. Correspondingly, in the latching sleeve 22, which is fixed here directly in the receiving space 9, corresponding depressions 29 or a depression 29 designed as a peripheral groove are arranged for engagement of the latching elements 23. In the in Fig. 3a shown starting position, which to Fig. 2a corresponds described position, the locking elements 23 are guided in the recesses 28 of the piston rod 19 and in the recesses 26 of the driver 21 within the cylindrical inner wall of the latching sleeve 22. Upon movement of the wing 1 in the opening direction of the piston 10 is displaced in the direction of the spring 15, whereby the coupled via the locking elements 23 with the piston rod 19 driver 21, which rests with its collar 23 on the spring 15, the spring 15 biases. In the Fig. 3b the position is shown in which is displaced by the further opening of the wing 1 of the piston 10 with the piston rod 19 so far in the direction of the spring 15 that the locking elements 23 dodge into the recesses 29 in the latching sleeve 22, whereby the with the spring 15 acted upon driver 21 is decoupled from the piston rod 19 and supported on the latching sleeve 22. Thus, the freewheeling range for the further opening movement of the wing 1, as above for Fig. 2c explains the piston rod 19, decoupled from the spring 15, is freely displaceable through the driver 21 therethrough.

For easy release of the coupling can be provided on each of the recesses 29 on the spring piston 14 side facing a shallow rising recess recess 30, whereby the lifting of the locking elements 23 from the recess 29 is favored.

In the embodiment according to the invention according to the FIGS. 4a to 4e In addition, a further, second freewheel device 16 is provided, wherein the first, the spring piston facing freewheel device 16 and the end arranged in the receiving space 9 second freewheel device 16 are constructed to be identical, the second freewheel device is arranged vice versa, so that the driver 21 with their Align frets 25 each other and so both freewheel devices 16 cooperate with the interposed spring 15. This is in addition to the entry of the wing 1 in its closed position, a mounting of the wing 1 in an open position possible. In the intermediate area, the free-running function is completely retained. Each of the two freewheel devices 16, as well as the one freewheel device 16 in the preceding exemplary embodiments according to FIGS FIGS. 2a to 2c or 3a and 3b , By the piston rod 19, in particular by the arranged on the piston rod 19 recess 28. The piston rod 19 is longer here and has for the second freewheel device 16 an additional circumferential taper 31, which includes the function of the recess 28.

In the Fig. 4a in turn, the starting position is shown with the wing 1 closed. The left in the figure, first freewheel device 16 is in the same position, as in the simple embodiments according to the FIGS. 2a . 3a Here, the locking elements 23 engage in the recesses 28 of the piston rod 19 and in the recesses 26 of the first driver 21, whereby the first driver 21 is coupled to the piston rod 19. The right in the figure, second freewheel device 16 is located in the freewheel area. The second driver 21 is displaced in the direction of the spring 15, wherein the locking elements 23 in the recesses 29 of the second detent sleeve 22 and are received in the recesses 26 of the driver 21. As a result, the spring 15 is supported on the second driver 21 and further on the second latching element 22.

During the opening movement of the wing 1, the piston 10 is moved with the piston rod 19 to the right, whereby the spring 15 is tensioned by the coupling of the piston rod 19 with the first driver 21 of the first freewheel device 16, as shown in the Fig. 4b is shown. The second freewheel device 16 is still in the freewheel area, wherein the second driver 21, as described above, is decoupled. In the position according to Fig. 4b is the first freewheel device 16 just at the beginning of the transition into the freewheel area, wherein the locking elements 23 can escape into the recesses 29 of the first latching sleeve 22 and the tension of the spring 15 is detected by the first driver 21. In the Fig. 4c the collection device 3 is shown in the area in which both the first and the second freewheel device 16 are in the freewheeling area, wherein both drivers 21 are detected, and so the spring 15 is maximally tensioned. The second freewheel device 16 is according to Fig. 4c just arrived at the end of their freewheel area.

In the Fig. 4d is shown that the locking elements 23 due to the force acting on the second driver 21 of the tensioned spring 15 in the taper 31 on the piston rod 19 from the recesses 29 of the second detent sleeve 22 back out. Not shown here, the depressions 29 of the second detent sleeve can also have a depression outlet 30. The piston rod 19 is acted upon by the second driver 21 and the locking elements 23 which abut against the right flank 32 of the taper 31, with the spring 15, whereby the piston rod 19 and the piston 10 in the Fig. 4d is moved to the right and the wing 1 is raised in the opening direction. This causes a movement of the wing 1 in an open position.

The position of this open position of the wing 1 can be adjusted by the end provided on the retraction device 3, accessible from the outside retraction stop 33, with which the possible displacement of the second driver 21 can be limited in the opening direction of the wing 1, as shown in the Fig. 4e is shown. With a arranged in the retraction stop 33 stop 34, the possible open position of the wing 1 in the desired opening position, in which the wing 1 is mounted, can be adjusted. The retraction stop 33 is received in a thread at the end of the receiving space 9 and is thus adjustable by rotation with respect to the second driver 21. The end stop 33 may be received in a thread in the retraction stop 34 and is adjustable by rotation with respect to the piston rod 19. Advantageously, the end stop 34 is adjusted by adjusting the retraction stop 33.

Starting from the open position according to Fig. 4e If the blade 1 is actuated in the closing direction, the process continues in the reverse order. By pivoting the blade 1 in the closing direction, first the piston rod 19 with the flanks 32 of the taper 31 comes into contact with the locking elements 23, whereby the second driver 21 is moved against the spring 15 and this is tensioned. The first freewheel device 16 is in the freewheel area. In the course of the second freewheel device 16 also enters the freewheel area by the locking elements 23 are moved so far that they slide along the flank 32 and engage in the recesses 29 of the second detent sleeve 22, whereby the second driver 21, the spring 15 clamped and the piston rod 19 is decoupled from the second driver 21. In the following area both freewheel devices 16 are effective, whereby the wing 1 is freely movable.

In the further closing movement of the wing 1, the piston rod 19 passes with the recesses 28 within the first driver 21 in the region of the locking elements 23, whereby the locking elements 23 due to the acted upon by the spring 15 first driver 21 from the recesses 29 of the first detent sleeve 22 in the recesses 28 are pushed into it. Thus, the piston rod 19 is coupled to the first driver 21 and thus with the tensioned spring 15, whereby the collection of the wing 1 is effected by the collection device 3 in its closed position.

In the FIGS. 5a to 5c an inventive embodiment is shown schematically in section. The structure of the intake device 3 corresponds to the embodiments described above, so that here only the piston rod 19 and the region of the freewheel devices 16 is shown. The piston rod 19 is connected on the left side with the piston 10.

The first and the second freewheel device 16 are in this case arranged in a locking sleeve designed as a detent sleeve 22, wherein each freewheel device 16 is associated with a recess 29. The detent sleeve 22 may have end closure elements through which the piston rod 19 is guided, whereby the detent capsule is formed. The locking capsule can be used as a unit in the receiving space 9 of the collection device. Compared to the previous embodiments, two springs 35, 36 are provided. The first freewheel device 16, which is arranged on the left in the figures, faces the piston 10, not shown here, interacts with a first spring 35, while the second freewheel device 16 arranged on the right cooperates with a second spring 36. The springs 35, 36 are supported at one end on the associated driver 21 and at the other end on the locking capsule. As a detent capsule and the receiving space 9 of the intake device 3 itself serve, the springs 35, 36 may be supported for example by means inserted into grooves in the receiving space 9 retaining rings. The depressions 29 can be incorporated into the wall of the receiving space 9 in the housing 7.

Fig. 5a again shows the starting position with the wing closed 1 of the intake device 3. The first, left freewheel device 16 is located in the freewheel area, wherein the piston rod 19 is uninfluenced by this displaced. The locking elements 23 are received in the recesses 29 of the locking capsule, and the associated first driver 21 is blocked, whereby the first, biased spring 35 is blocked. For the second, right freewheel device 16, there is the coupling between the piston rod 19 and the acted upon by the second spring 36 second driver 21 by the locking elements 23 engage in the recesses 28 of the piston rod 19. The second spring 36 is in a relaxed state.

During the opening movement of the wing 1, the second spring 36 is tensioned by the existing coupling of the piston rod 19 in the second freewheel device 16 until the second freewheel device 16 is displaced so far that the latching elements 23 engage in the depressions 29 in the detent capsule that the second freewheel device 16 merges into the freewheeling area, as in the Fig. 5b is shown. Both springs 35, 36 are stretched, and the piston rod 19, and thus the retraction device 3, is completely freewheeling, and the wing 1 is freely movable.

Upon further opening of the wing 1 reach the locking elements 23 of the first freewheel device 16 in the region of the recesses 29 in the locking capsule, wherein the locking elements 23 are urged by the acted upon by the first spring 35 driver 21 in the recesses 28 of the piston rod 19. The piston rod 19 is thus coupled to the tensioned first spring 35, whereby the piston rod 19 is acted upon by the spring 35. The wing 1 is raised in the open position, as shown in the Fig. 5c is shown.

List of reference characters

1 wing 26 recess 2 frame 27 sleeve slope 3 retraction device 28 recess 4 slide 29 deepening 5 skid 30 well run 6 actuating arm 31 rejuvenation 7 casing 32 flank 8th wave 33 feeder stop 9 accommodation space 34 end stop 10 piston 35 feather 11 gearing 36 feather 12 damping piston 13 pinion 14 spring piston 15 feather 16 Freewheel device 17 damping space 18 Valve 19 piston rod 20 slope 21 takeaway 22 locking sleeve 23 locking elements 24 support ring 25 Federation

Claims (7)

1. Retraction device (3) for a leaf/sash (1) of a door or of a window, comprising a housing (7) and a piston (10) which is arranged in a receptacle (9) of the housing (7) and which is provided with a toothing (11), wherein a pinion (13) of an output shaft (8) meshes with the toothing (11) and has an actuating arm (6) arranged in a rotationally fixed manner thereon, and wherein at least one spring (15, 36, 37) of the retraction device (3) that is arranged in the receptacle (9) can be coupled to the piston (10),
   characterized in that
   a piston rod (19) is fixed to the piston (10), wherein two free-running devices (16) of the retraction device (3) are arranged on the piston rod (19) and by means of which the piston rod (19) can be coupled to the spring (15, 35, 36), wherein the piston rod (19) has at least one recess (28) and/or a taper (31) and/or a bevel (20) for controlling the free-running device (16), and in that the free-running device (16) comprises a latching sleeve (22) fixed in the receptacle (9) and having a driver guided in the latching sleeve (22) and provided with at least one cutout (26), and at least one latching element (23) received in the cutout (26), wherein a spring (15) acting on the two free-running devices (16) is arranged between the drivers (21) of the two free-running devices (16), or the latching sleeve (22) is designed as a latching capsule, wherein two springs (35, 36) are provided which are each supported on the latching capsule at their ends.
2. Retraction device according to Claim 1, characterized in that
   the spring (15, 35, 36) is supported on the driver (21).
3. Retraction device according to either of Claims 1 and 2,
   characterized in that the piston rod (19) passes through the driver (21).
4. Retraction device according to Claim 1,
   characterized in that a displacement of the piston rod (19) causes the latching element (23) to be passed into a depression (29) of the latching sleeve (22).
5. Retraction device according to Claim 1,
   characterized in that the spring-loaded driver (21) presses the latching element (23) into the recess (28) or into the taper (31) in the piston rod (19).
6. Retraction device according to Claim 1,
   characterized in that the latching element (23) is guided in a cutout (26) in the driver (21).
7. Retraction device according to Claim 1,
   characterized in that a retraction stop (33) is provided which limits the possible displacement travel of the driver (21).

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