door closer

Abstract

Drive, in particular a door closer, for a leaf (15) of a door or window, which can be moved between a closed position and an open position, in particular a passive leaf of a double-leaf door having the passive leaf and a moving leaf with closing sequence control, comprising a sliding arm (19), a sliding rail (21), a slider (25) arranged in the sliding rail (21), which slider is movable in the sliding rail (21) in an opening direction (27) corresponding to an opening movement of the leaf (15) and a closing direction (29) corresponding to a closing movement of the leaf (15) and, at the beginning of the opening movement of the leaf (15) and at the end of the closing movement of the leaf (15), executes a movement in the opposite direction, and a trigger (31), characterized in that the trigger (31) has a trigger element (33) arranged in the sliding rail (21),which can be actuated by the slider (25) via a slotted guide (37) defining a guide track (39) and a coupling element (35) engaging in the slotted guide (37) and deflectable transversely to the direction of movement of the slider (25) and can be displaced between an unactuated position, into which the trigger element (33) is pretensioned, and an actuated position, wherein the guide track (39) extends in such a way that the coupling element (35), - in the closed position of the leaf (15) is engaged in a locking position of the guide track (39) and holds the release element (33) in the actuated position against the force of the pretension, - during an opening movement of the wing (15), at the beginning of the opening movement, it is moved out of the locking position opposite to the opening direction (27) of the slider (25), wherein the trigger element (33) is displaced into the unactuated position by the force of the pretension, and is moved past the locking position in the opening direction (27) of the slider (25) as the opening movement of the wing (15) continues, and - during a closing movement of the wing (15), before the end of the closing movement, the wing (15) is moved past the locking position in the closing direction (29) of the slider (25) and at the end of the closing movement of the wing (15) is moved into the locking position against the closing direction (29) of the slider (25), wherein the trigger element (33) is moved into the actuated position against the force of the pretension - and wherein the drive (11) comprises an actuating device, in particular a cable pull (57) or a micro-button, which can be actuated by the triggering element (33), in particular in order to control a locking device for releasing a closing movement of the active leaf of the double-leaf door via the actuating device.

Description

[0001] The invention relates to a door closer for a door leaf movable between a closed position and an open position, in particular a passive leaf of a double-leaf door having the passive leaf and a moving leaf with closing sequence control, with a sliding arm, a sliding rail, a sliding member arranged in the sliding rail, which sliding member is movable in the sliding rail in an opening direction corresponding to an opening movement of the door leaf and a closing direction corresponding to a closing movement of the door leaf and, at the beginning of the opening movement of the door leaf and at the end of the closing movement of the door leaf, each sliding member executes an opposite movement, and a trigger, in particular for releasing a closing movement of the moving leaf of the double-leaf door.

[0002] If a door closer with a guide rail is used on a revolving door, it can happen that the guide moves in the opposite direction when the door is opened and closed at small door angles, i.e. a certain area of ​​the guide rail is crossed over twice by the guide rail. This can occur in particular with door closers mounted on the door leaf opposite each other, although this type of behavior cannot be ruled out with other types of installation, depending on the door and door closer geometry. If a trigger, in particular for releasing the closing movement of a moving leaf of a double-leaf door with closing sequence control, is to be actuated via the stroke of the guide rail on such a door closer, the trigger would under certain circumstances be actuated twice, i.e. not only when the door leaf is closing but also when the door leaf is opening, resulting in false triggering.

[0003] DE 10 2014 225 291 proposes a device for influencing the opening and / or closing movement of a door or window sash.

[0004] DE 10 2017 210 363 teaches a locking device for a door, which comprises, among other things, a guide rail with a locking element located therein, which acts via a coupling element.

[0005] The object of the present application is to provide a door closer of the type mentioned at the outset with a trigger which is of simple construction and functions without false triggering even when the slider moves in the opposite direction.

[0006] This object is achieved by a door closer having the features of claim 1, and in particular in that the trigger has a trigger element arranged in the slide rail, in particular a plate-shaped trigger element, which can be actuated by the slider via a slotted guide defining a guide track and a coupling element engaging in the slotted guide and deflectable transversely to the direction of movement of the slider, and can be displaced between an unactuated position, into which the trigger element is pretensioned, and an actuated position, wherein the guide track extends in such a way that the coupling element, in the closed position of the door leaf, is engaged in a detent position of the guide track and holds the trigger element in the actuated position against the force of the pretension, and is moved out of the detent position during an opening movement of the door leaf at the beginning of the opening movement against the opening direction of the slider,wherein the trigger element is displaced into the unactuated position by the force of the pretension, and is moved past the detent position in the opening direction of the slider during the further opening movement of the door leaf, and during a closing movement of the door leaf, before the end of the closing movement, is moved past the detent position in the closing direction of the slider and is moved into the detent position at the end of the closing movement of the door leaf against the closing direction of the slider, wherein the trigger element is displaced into the actuated position against the force of the pretension.

[0007] According to the invention, the trigger element is only moved from the actuated position to the unactuated position by the force of the preload during the counter-rotating movement of the slider at the beginning of the opening movement of the door leaf, and from the unactuated position to the actuated position only during the counter-rotating movement of the slider at the end of the closing movement of the door leaf, counter to the force of the preload and in particular due to a positive operative connection between the slider and the trigger element. The door closer according to the invention can prevent the trigger from being actuated twice, since the trigger element is only actuated during a closing movement of the door leaf, but not during an opening movement of the door leaf. The door closer according to the invention therefore uses a direction-dependent trigger.

[0008] The trigger of the door closer according to the invention can be used on the inactive leaf of a double-leaf door with a closing sequence control, comprising a passive leaf and a moving leaf, to control a locking device for releasing a closing movement of the moving leaf of the double-leaf door via an actuating device, in particular a cable pull or a micro switch. In principle, however, the trigger can also be used for other purposes, for example, to detect the closed state of a revolving door as part of building surveillance or to briefly activate a sensor monitoring the main closing edge of a revolving door for personal protection.

[0009] Advantageous embodiments of the invention are described in the dependent claims.

[0010] According to one embodiment, the guide track comprises a first deflection surface and a first compensation section, which act at the beginning of an opening movement of the door leaf, wherein the first deflection surface deflects the coupling element moved out of the locking position to one side, and wherein the coupling element subsequently moves into the first compensation section, a second deflection surface acting during the further course of the opening movement of the door leaf, which deflects the coupling element moved past the locking position back from one side, a third deflection surface, a fourth deflection surface and a second compensation section, which act during a closing movement of the door leaf before the end of the closing movement of the door leaf, wherein the third deflection surface initially deflects the coupling element moved in the closing direction of the slider to the other side,The fourth deflection surface then redirects the coupling element, which has been deflected to the other side and moved past the locking position, and the coupling element subsequently retracts into the second compensating section and comprises a concave contact surface defining the locking position and pointing in the closing direction of the slider, against which the coupling element rests at the end of the closing movement of the door leaf. In particular, it can therefore be provided that the guide track has a concave contact surface defining the locking position and pointing in the closing direction of the slider, four deflection surfaces arranged in a circle around the contact surface, and two compensating sections for the opposing movements of the slider in order to move the coupling element out of the locking position, around the locking position, and back into the locking position during an opening and closing movement of the door leaf.

[0011] Preferably, the coupling element is provided on the slider and the guide rail is provided on the trigger element. In this case, a conventional slider can be used, which is additionally provided with the coupling element.

[0012] In principle, however, it can also be provided the other way around, with the coupling element being provided on the trigger element and the guide rail being provided on the slider.

[0013] The preload of the release element into the unactuated position can be achieved by a compression spring. A compression spring is a reliable, compact, and inexpensive component. The degree of preload can be adjusted by selecting the spring stiffness and the compression of the compression spring in the unactuated position.

[0014] Furthermore, it is preferred if the trigger comprises a base plate which is fastened, in particular braced, in the slide rail, against which the trigger element rests, in particular flat, and which has a recess into which the compression spring is inserted and into which a contact section of the trigger element engages, wherein the compression spring is supported on the one hand on a wall of the recess and on the other hand on a wall of the contact section. Such a construction allows the compression spring to be installed in a simple manner. Bracing the base plate has the advantage that no screw holes are required and the mounting position of the trigger in the slide rail can be flexibly changed. It can be provided that the recess and the compression spring are covered by the trigger element in order to hold the compression spring captively and protect it from contamination.

[0015] Preferably, the base plate, particularly at the end facing away from the slider, has a stop for the release element in the unactuated position, projecting toward the release element. Thus, no separately mounted stop is required for the unactuated position. No stop is required for the actuated position of the release element, since the movement of the release element into the actuated position is limited by the stroke of the slider.

[0016] It can be provided that the stop is part of a clamping device, which additionally comprises at least one clamping projection protruding in the direction of the trigger element at the end of the base plate facing the slider in order to clamp the base plate in the slide rail. Furthermore, the stop can have a passage for a cable pull for the unactuated position of the trigger element, which cable can be connected to a locking device for releasing a closing movement of the active leaf of the double-leaf door.

[0017] According to a further embodiment, the slide rail is profiled multiple times on both sides to form two superimposed profile guides, with the slider inserted into the first profile guide and the trigger inserted into the second profile guide. The slider can then move over the trigger or triggering element, and the coupling element can be held short and thus correspondingly stable. The aforementioned base plate can then be fastened, in particular clamped, in the second profile guide.

[0018] The coupling element can have a pivot arm equipped with a coupling section, which is deflectable, namely pivotable, about a pivot axis running perpendicular to the plane of the slide rail and engages with the coupling section in the slotted guide. Alternatively, the coupling element can have a rotatable disc equipped with a coupling section, which is deflectable, namely rotatable, about a rotation axis running perpendicular to the plane of the guide rail and engages with the coupling section in the slotted guide. Further alternatively, the coupling element can have a carriage equipped with a coupling section, which is deflectable, namely movable, transversely to the direction of movement of the slider and in the plane of the slide rail and engages with the coupling section in the slotted guide.

[0019] In particular, the door closer comprises an actuating device, in particular a cable pull or a microswitch, which can be actuated by the trigger element, in particular to control a locking device for releasing a closing movement of the active leaf of the double-leaf door via the actuating device. However, the actuating device, in particular the microswitch, can also be used for purposes other than closing sequence control, as explained above.

[0020] The invention further relates to a door locking system for a double-leaf door having a passive leaf and a moving leaf with closing sequence control, with a door closer for the passive leaf and a door closer for the moving leaf, wherein the door closer for the passive leaf is designed as described above.

[0021] Further advantageous embodiments of the invention are described in the description of the figures and the drawing.

[0022] The invention will now be described by way of example with reference to the drawings, in which: Fig. 1 a door closer, Fig. 2A-D a trigger in a top view with a slide rail, a side view, a perspective full view and a perspective longitudinal section view, Fig. 3 the slide rail according to Fig. 2A in a schematic cross-section, Fig. 4A-D the operation of the trigger according to the Fig. 2 and Fig. 3 during an opening movement of a door leaf, Fig. 4E-H the operation of the trigger according to the Fig. 2 and Fig. 3 during a closing movement of a door leaf, and Fig. 5A-D a coupling element according to a first (2 views), second and third embodiment.

[0023] Fig. 1 shows a door closer 11 for automatically closing a door leaf 15. The door closer 15 comprises a door closer body 13, which is mounted on the hinge side of the door leaf 15, which can in particular be the inactive leaf of a double-leaf door with closing sequence control comprising the inactive leaf and a moving leaf. A closer shaft 17 protrudes from the door closer body 13, via which a sliding arm 19 is articulated to the door closer body 13 at a first end. The sliding arm 19 is connected to a second end via an articulated slider 25 (cf. Fig. 2A) is guided in a slide rail 21 mounted on a door frame 23. The slider 25 is movable in the slide rail 21 in an opening direction 27 corresponding to an opening movement of the door leaf 15 and a closing direction 29 corresponding to a closing movement of the door leaf 15. In addition, in the Fig. 2A to 2D show a trigger 31 which can be actuated by the slider 25, in particular to release a closing movement of a moving leaf of a double-leaf door with closing sequence control.

[0024] If the rotational axis of the closer shaft 17 moves through the connecting line between the rotational axis of the door leaf 15 and the rotational axis of the slider 25 during an opening or closing movement of the door leaf 15, as can be the case in particular with a door closer mounted opposite the hinge on a door leaf, the slider 25 performs an opposite movement at the beginning of the opening movement of the door leaf 15 and at the end of the closing movement of the door leaf 15. Therefore, at small door angles, a certain area of ​​the slide rail 21 is traversed twice by the slider 25 during opening and closing.

[0025] In order to avoid double actuation of the trigger 31 in such a door closer 11, i.e. both when closing and opening the door leaf 15, the trigger 31 has a plate-shaped trigger element 33 arranged in the slide rail 21, which can be moved between an unactuated position, into which the trigger element 33 is pretensioned, and an actuated position, wherein the trigger element 33 is coupled to the slider 25 in such a way that the trigger element 33 is actuated by the slider 25 only during the opposite movement of the slider 25 at the end of the closing movement of the door leaf 15. For this purpose, the slider 25 is provided with a coupling element 35 which can be deflected transversely to the direction of movement of the slider 25 and which engages in a slotted guide 37 formed in the trigger element 33.The link guide 37 defines a guide track 39 which extends in such a way that the coupling element 35 pulls the trigger element 33 against the pretension into the actuated position only during the opposite movement of the slider 25 at the end of the closing movement of the door leaf 15, as will be explained in more detail below.

[0026] The trigger 31 further comprises a base plate 43 clamped in the slide rail 21. A recess 45 is formed in the base plate 43, into which a compression spring 41 is inserted, which pretensions the trigger element 33 into the unactuated position. For this purpose, the trigger element 33 rests flat against the base plate 43 and has a contact section 47 that engages in the recess 45. The compression spring 41 is supported on the one hand against a wall of the recess 45 and on the other hand against a wall of the contact section 47 of the trigger element 33, wherein the recess 45 and the compression spring 41 are simultaneously covered by the trigger element 33.

[0027] At the end facing away from the slider 25, the base plate 43 has a stop 49 projecting in the direction of the trigger element 33 for the trigger element 33 in the unactuated position. A passage 55 for a cable pull 57, which can be connected in particular to a locking device for releasing a closing movement of a moving leaf of a double-leaf door, is provided in the stop 49. Furthermore, two clamping projections 51 are provided at the end of the base plate 43 facing the slider 25. Furthermore, a through-threaded bore 53 is formed in the base plate 43, into which a grub screw (not shown) can be screwed, so that the base plate 43 can be clamped in the slide rail 21 via the stop 49 and the two clamping projections 51.

[0028] As in Fig. 3, the slide rail 21 is profiled multiple times on both sides, forming two superimposed profile guides 59, 61. The slider 25 is inserted into the first profile guide 59, and the trigger 31 with the trigger element 33 and the base plate 43 into the second profile guide 61, wherein the slider 25 is shown in a position in which the slider 25, viewed in the direction of movement of the slider 25, overlaps the trigger 31 (see Fig. 4B and Fig. 4G).

[0029] As can be seen from the Fig. 4A to 4H, which illustrate the functioning of the trigger 31, the guide track 39 comprises a first deflection surface 63, a first compensation section 65, a second deflection surface 67, a third deflection surface 69, a fourth deflection surface 71, a second compensation section 73, and a concave contact surface 75 pointing in the closing direction 29 of the slider 25. In the closed position of the door leaf 15, the coupling element 35 is engaged in a central detent position, as seen in the direction of movement of the slider 25, which is formed by the concave contact surface 75. The coupling element 35 holds the trigger element 33 in the actuated position against the force of the pretension (cf. Fig. 4A).

[0030] At the beginning of an opening movement of the door leaf 15, the coupling element 35 moves out of the locking position opposite to the opening direction 27 of the slider 25, so that the trigger element 33 can be moved into the unactuated position by the compression spring 41. The coupling element 35 is deflected to one side by the first deflection surface 63 and moves into the first compensation section 65 (see. Fig. 4B). After the slider 25 has completed its counter-rotating movement, the coupling element 35 moves in the opening direction of the slider 27 past the locking position to the second deflection surface 67, which deflects the coupling element 35 from one side back towards the center (cf. Fig. 4C), whereby during the further opening movement the coupling element 35 can extend from the trigger element 33 (cf. Fig. 4D).

[0031] During a subsequent closing movement of the door leaf 15, the coupling element 35 initially retracts into the triggering element 33 (cf. Fig. 4E) and is then deflected to the other side by the third deflection surface 67 (cf. Fig. 4F). The coupling element 35 then moves in the closing direction 29 of the slider 25 past the locking position, is deflected back towards the center by the fourth deflection surface 71, and moves into the second compensation section 73 (cf. Fig. 4G). At the end of the closing movement, the coupling element 35 then moves back into the locking position against the closing direction 29 of the slider 25.

[0032] In the Fig. 5A to Fig. 5D, various embodiments of the coupling element 35 are shown. Fig. 5A and Fig. 5B show that in the Fig. 2 and Fig. 4 illustrated coupling element 35. The coupling element 35 according to the Fig. 5A and Fig. 5B is designed as a pivot arm that can be pivoted about a pin 79 forming a pivot axis, which is connected to the sliding arm 19. The pivot axis runs perpendicular to the plane of the slide rail 21. A coupling section 77 in the form of a pin is provided on the pivot arm 35 in an end section remote from the slider 25, with which the pivot arm 35 engages in the guide rail 37. In the Fig. 5C, a disk rotatable about a rotation axis is provided as the coupling element 35 - instead of a pivot arm. On the side of the rotatable disk 35 facing away from the slider 25, a coupling section 77 is provided, projecting perpendicularly to the plane of the slide rail 21. In the embodiment according to Fig.5D, the coupling element 35 is formed by a carriage which can be moved perpendicular to the direction of movement of the slider 25 and parallel to the plane of the slide rail 21. The carriage 35 has a coupling section 77 which moves with the carriage 35. In order for the carriage 75 to be movable in the slider 25 perpendicular to the direction of movement of the slider 25 and parallel in the plane of the slide rail 21, a guide groove extending transversely to the displacement direction of the slider 25 is provided in the slider 25. List of reference symbols 11 door closers 13 Door closer body 15 door leaves 17 Closer shaft 19 Sliding arm 21 Slide rail 23 door frames 25 gliders 27 Opening direction 29 Closing direction 31 triggers 33 trigger element 35 coupling element 37 Scenery guide 39 Guideway 41 compression spring 43 Base plate 45 recess 47 Contact section 49 stop 51 clamping projection 53 threaded hole 55 penetration 57 cable pull 59 first profile guide 61 second profile guide 63 first deflection surface 65 first compensation section 67 second deflection surface 69 third deflection surface 71 fourth deflection surface 73 second compensation section 75 concave contact surface 77 Coupling section 79 bolts

Claims

[1] Drive, in particular a door closer, for a leaf (15) of a door or window, which can be moved between a closed position and an open position, in particular a passive leaf of a double-leaf door having the passive leaf and a moving leaf with closing sequence control, with a sliding arm (19), a sliding rail (21), a slider (25) arranged in the sliding rail (21), which slider is movable in the sliding rail (21) in an opening direction (27) corresponding to an opening movement of the leaf (15) and a closing direction (29) corresponding to a closing movement of the leaf (15) and, at the beginning of the opening movement of the leaf (15) and at the end of the closing movement of the leaf (15), executes a movement in the opposite direction, and a trigger (31), characterized bythat the trigger (31) has a trigger element (33) arranged in the slide rail (21), which can be actuated by the slider (25) via a slotted guide (37) defining a guide track (39) and a coupling element (35) engaging in the slotted guide (37) and deflectable transversely to the direction of movement of the slider (25), and can be displaced between an unactuated position, into which the trigger element (33) is pretensioned, and an actuated position, wherein the guide track (39) extends in such a way that the coupling element (35) - in the closed position of the leaf (15) is engaged in a locking position of the guide track (39) and holds the release element (33) in the actuated position against the force of the pretension, - during an opening movement of the wing (15), at the beginning of the opening movement, it is moved out of the locking position opposite to the opening direction (27) of the slider (25), wherein the trigger element (33) is displaced into the unactuated position by the force of the pretension, and is moved past the locking position in the opening direction (27) of the slider (25) as the opening movement of the wing (15) continues, and - during a closing movement of the wing (15), before the end of the closing movement, the wing (15) is moved past the locking position in the closing direction (29) of the slider (25) and at the end of the closing movement of the wing (15) is moved into the locking position against the closing direction (29) of the slider (25), wherein the trigger element (33) is moved into the actuated position against the force of the pretension - and wherein the drive (11) comprises an actuating device, in particular a cable pull (57) or a micro-button, which can be actuated by the triggering element (33), in particular in order to control a locking device for releasing a closing movement of the active leaf of the double-leaf door via the actuating device. [2] Drive according to claim 1, characterized by that the guideway (39) comprises: a first deflection surface (63) and a first compensation section (65) which act at the beginning of an opening movement of the wing (15), wherein the first deflection surface (63) deflects the coupling element (35) moved out of the locking position to one side, and wherein the coupling element (35) then moves into the first compensation section (65), a second deflection surface (67) acting in the further course of the opening movement of the wing (15), which deflects the coupling element (35) moved past the locking position back from one side, a third deflection surface (69), a fourth deflection surface (71) and a second compensating section (73), which act during a closing movement of the wing (15) before the end of the closing movement of the wing (15), wherein the third deflection surface (69) initially deflects the coupling element (35) moved in the closing direction (29) of the slider (25) to the other side, wherein the fourth deflection surface (71) then deflects back the coupling element (35) deflected to the other side and moved past the locking position, and wherein the coupling element (35) subsequently moves into the second compensating section (73), and a concave contact surface (75) defining the locking position and pointing in the closing direction (29) of the slider (25), against which the coupling element (35) rests at the end of the closing movement of the wing (15). [3] Drive according to claim 1 or 2, characterized bythat the coupling element (35) is provided on the slider (25) and the slotted guide (37) on the triggering element (33), or vice versa. [4] Drive according to one of the preceding claims, characterized by that the pretensioning of the trigger element (33) into the unactuated position is carried out by a compression spring (41). [5] Drive according to one of the preceding claims, characterized by in that the trigger (31) comprises a base plate (43) which is fastened, in particular braced, in the slide rail (21), against which base plate the trigger element (33) rests and which has a recess (45) into which the compression spring (41) is inserted and into which a contact section (47) of the trigger element (33) engages, the compression spring (41) being supported on the one hand on a wall of the recess (45) and on the other hand on a wall of the contact section (47), it being provided in particular that the recess (45) and the compression spring (41) are covered by the trigger element (33). [6] The drive according to claim 5, characterized by , wherein the base plate (43), in particular at the end facing away from the slider (25), has a stop (49) for the release element (33) projecting in the direction of the release element (33) in the non-activated position. [7] The drive according to claim 6, characterized by , wherein the stop (49) is part of clamping means which additionally comprise at least one clamping projection (51) projecting in the direction of the release element (33) at the end of the base plate (43) facing the slider (25), in order to clamp the base plate (43) in the slide rail (21). [8] The drive according to claim 6 or 7, characterized by , wherein the stop (49) for the non-activated position of the release element (33) has a passage (55) for a cable pull (57) which can be connected to a locking device for releasing a closing movement of the wing of the double-leaf door. [9] The drive according to any one of the preceding claims, characterized bythat the slide rail (21) is profiled multiple times on both sides in the interior to form two profile guides (59, 61) lying one above the other, wherein the slider (25) is inserted into the first profile guide (59) and the trigger (31) is inserted into the second profile guide (61). [10] Drive according to one of the preceding claims, characterized by , that the coupling element (35) has a pivot arm equipped with a coupling section (77) which is deflectable, namely pivotable, about a pivot axis which runs perpendicular to the plane of the slide rail (21) and engages with the coupling section (77) in the slotted guide (37), or that the coupling element (35) has a rotatable disc equipped with a coupling section (77) which is deflectable, namely rotatable, about an axis of rotation which runs perpendicular to the plane of the guide rail and engages with the coupling section (77) in the slotted guide (37), or that the coupling element (35) has a carriage equipped with a coupling section (77) which can be deflected, namely displaced, transversely to the direction of movement of the slider (25) and in the plane of the slide rail (21) and which engages with the coupling section (77) in the slotted guide (37). [11] Door locking system for a double-leaf door having a passive leaf and a moving leaf with closing sequence control, with a drive (11), in particular a door closer, for the passive leaf and a drive, in particular a door closer, for the moving leaf, wherein the drive (11) for the passive leaf is designed according to one of the preceding claims.

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