Opening limiting device for a connecting rod fitting

Abstract

An opening-limiting device (3) for a connecting rod fitting (5) of a leaf (2) pivotable against a frame (1) has a guide web (14) for guiding a guide pin (12) relative to a guide slot (11). A pin guide (20) can be moved between a position parallel to the guide web (14) and a retracted position via a drive of the connecting rod fitting (5), thus controlling the release of the guide pin (12) relative to the guide slot (11). This makes the opening-limiting device (3) particularly reliable.

Description

[0001] The invention relates to an opening limiting device for a drive rod fitting of a sash of a window, a French window or the like which can be pivoted against a frame, having a frame-side fitting part and a sash-side fitting part, having a pivot arm for connecting the fitting parts in a ventilation position, wherein the pivot arm has a bearing on one of the fitting parts and is guided on the other of the fitting parts by means of a guide pin in a guide device, having a guide slot of the guide device which is open on one side, wherein the guide pin can be removed from the guide slot in an inspection position, and having a switching rod which can be coupled to the drive rod fitting for controlling the movement of the guide pin in the guide slot.

[0002] Such opening limiting devices are used, for example, for safety reasons to limit the opening width of a sash in certain switching positions of the connecting rod fitting. In other switching positions, the sash should be able to be opened completely, for example, for cleaning or maintenance.

[0003] A sash assembly with an opening-limiting device is known from EP 3 985 216 A1. This opening-limiting device features a guide plate with a guide groove closed on one side, into which a pin of the pivot arm engages. In the limited opening position of the sash, the pin rests against the closed end of the guide groove, thereby limiting pivoting of the sash in the opening direction. However, inserting and removing the pin through the open end of the guide groove is difficult because the pin and the open end of the guide groove must be positioned precisely one above the other.

[0004] EP 4 174 266 A1 discloses a sash assembly in which a pivot arm engages a guide groove with a pin and rests against the closed end of the guide groove when the sash is partially open. The sash assembly also features a self-locking device to automatically lock the pin resting against the closed end of the guide groove. A movable pin guide is positioned opposite the open end of the guide groove. For insertion, the pin must be positioned exactly opposite the guide groove.

[0005] The invention is based on the problem of developing an opening limiting device of the type mentioned at the outset in such a way that it is particularly functionally reliable and enables the pin to be easily removed and inserted into the guide groove.

[0006] This problem is solved according to the invention in that a guide web is arranged on the side of the guide slot opposite a pivoting movement of the guide pin and in that the guide web projects beyond the guide slot on this side.

[0007] This design allows the guide pin to be removed by pivoting the pivot arm only to the side facing away from the guide bar. To insert the guide pin into the guide slot, the guide bar acts as a stop for the guide pin. Therefore, the pivot arm can simply be pivoted so that the guide pin abuts the guide bar. This positions the guide pin opposite the guide slot and allows it to be easily inserted into it. The guide bar guides the guide pin particularly easily as it is removed from the guide groove. This prevents operating errors. The opening limiting device is therefore particularly reliable.

[0008] According to another advantageous embodiment of the invention, the possible removal of the guide pin from the guide slot can be easily controlled if a pin guide coupled to the switching rod is arranged on the side of the guide slot opposite the guide web and is movable between a protruding position parallel to the guide web and a position retracted into the guide slot. This results in the guide slot being longer in the protruding position of the pin guide than in the retracted position. Thus, the pin guide blocks removal of the guide pin from the guide slot in the protruding position and enables removal in the retracted position. Thus, the protruding position of the pin guide enables the ventilation position of the opening limiting device, and the retracted position enables the inspection position of the opening limiting device.

[0009] According to another advantageous development of the invention, locking the guide pin of the pivot arm in the guide device is particularly simple if a pin lock connected to the switching rod can be moved between a position blocking the movement of the guide pin in the guide slot to a position releasing the movement of the guide pin. This design allows the opening limiting device to be moved into a locking position in which the position of the wing is locked. Preferably, the pin lock is spaced apart from the pin guide.

[0010] According to another advantageous development of the invention, the design effort for controlling the movement of the guide pin can be kept particularly low if at least one of the components of the pin lock or the pin guide has a projection penetrating into the guide slot and if the projection blocks the movement of the guide pin in the guide slot in one position of the shift rod and releases it in another position.

[0011] According to another advantageous development of the invention, the control of the guide in the guide slot is particularly simple if the guide slot has a widening and if, in the ventilation position, the projection of the pin guide is arranged in the widening to produce a uniform width of the guide for the guide pin.

[0012] According to another advantageous development of the invention, the guide device is structurally particularly simple if the guide slot has a bend to accommodate the guide pin and if the pin lock covers the bend in a locking position that blocks the movement of the guide pin. Since the position of the pin lock depends on the position of the switching rod, this design results in the pin lock allowing the guide pin to pivot out of the guide slot to one side in one position of the switching rod, and in another position of the switching rod the pin lock blocks the exit from the bend of the guide slot. As a result, the guide pin is held in a form-fitting manner in the guide device in one switching position of the switching rod. In this position, the length of the pivot arm limits the partially pivoted-open position of the sash relative to the frame.Preferably, the pin lock has an insertion bevel for the guide pin at its end projecting into the guide slot for the position that releases the guide pin.

[0013] According to another advantageous development of the invention, the guide device is particularly simple in design if the guide device has a base plate for screwing and a bridge web with the guide slot spaced apart from the base plate. The guide web preferably protrudes from the bridge web. The base plate can be easily screwed to the frame or sash.

[0014] According to another advantageous development of the invention, the pin guide and the pin lock are guided parallel to the direction of movement of the shift rod between the base plate and the bridge web to further simplify the design of the guide device. This design also guides the pin guide and the pin lock in a predetermined longitudinal direction.

[0015] According to another advantageous development of the invention, the guide pin is reliably held in the guide device in various positions of the shift rod if the guide pin has a mushroom-shaped extension for engaging behind the guide slot. The guide slot and the mushroom-shaped extension thus enable a positive connection between the guide pin and the guide device.

[0016] According to another advantageous development of the invention, the guide device is highly stable if the bridge web is connected to the base plate via connecting webs arranged laterally next to the guide slot, and if the connecting webs are spaced apart from the guide slot. Furthermore, the spacing of the connecting webs allows the mushroom-shaped extension of the guide pin to engage behind the guide slot. The connecting webs are preferably pressed into the base plate. This allows several individual connecting webs to be pressed into the base plate particularly easily. Alternatively, the connecting webs can be welded to the base plate.

[0017] According to another advantageous embodiment of the invention, increased friction or jamming of the opening limiting device can be easily avoided if the connecting bar on the side of the bridge bar is higher than the connecting bar on the opposite side of the bridge bar. This design angles the bridge bar, thus preventing friction with the switching rod, especially in small windows.

[0018] According to another advantageous embodiment of the invention, after the guide pin is decoupled from the guide slot in the inspection position, the pivot arm is held in its position if the bearing has a frictional engagement to hold the pivot arm in the inspection position. This aligns the pivot arm with the guide pin relative to the guide slot, allowing the guide pin to be reinserted into the guide slot after the opening limiting device has been driven into the ventilation position. The frictional engagement can be achieved, for example, by means of a disc spring.

[0019] According to another advantageous development of the invention, jamming of the opening limiting device can be largely avoided if the pivot arm has a bevel at at least one end facing the opposing component. Especially with small windows, the bevel prevents the pivot arm from hitting the adjacent component.

[0020] According to another advantageous development of the invention, a malfunction of the opening limiting device in the event of a possible incorrect operation of the drive rod fitting can be largely avoided if the pin lock is guided into the widening of the guide slot in the locking position.

[0021] The invention permits numerous embodiments. To further clarify its basic principle, two of them are shown in the drawing and are described below. This shows in Fig. 1 a window with an opening limiting device arranged between the frame and the sash, Fig. 2 the opening limiting device Fig. 1 in a revision position, Fig. 3 the opening limiting device in a ventilation position, Fig. 4 the opening limiting device in a locking position, Fig. 5 a sectional view through the opening limiting device from Fig. 4 along the line V - V, Fig. 6 a further embodiment of the opening limiting device.

[0022] Fig. 1 shows a window with a sash 2 pivotable against a frame 1 and with an opening limiting device 3 for limiting the opening width of the sash 2. The opening limiting device 3 has a pivoting arm 4 for detachably connecting the frame 1 to the sash 2. The window also has a not-shown espagnolette fitting 5 with a handle 6 for locking the sash 2 in the frame 1.

[0023] Fig. 2 shows the opening limiting device 3 from Fig. 1 with a frame-side fitting part 7 and a sash-side fitting part 8 in an inspection position. The pivot arm 4 has a bearing 9 on the frame-side fitting part 7. The sash-side fitting part 8 has a bridge-shaped guide device 10 with a guide slot 11 open on one side for receiving a guide pin 12 arranged at the free end of the pivot arm 4. As Fig. 2 shows, in the inspection position shown, the guide pin 12 and guide slot 11, and thus also the two fitting parts 7, 8, are separated from each other. In this position, the sash 2 can be pivoted completely away from the frame 1 and pivoted towards it. To clarify the components of the opening limiting device 3, the sash 2 is pivoted slightly away from the frame 1. In this inspection position, the pivot arm 4 is held in position by a friction fit (not shown in detail) on the frame-side fitting part 7.

[0024] One with a longitudinally movable, from the handle 6 Fig. 1 drive rod of the drive rod fitting 5 coupled switching rod 13 is guided below the guide device 10 in a rebate groove of the sash 2. In the Fig. In the position shown in Figure 2, the shift rod is in the lowest position 13.

[0025] The guide device 10 has a guide web 14 on a side opposite the pivoting range of the pivot arm 4 and thus the pivot arm 4. The guide web 14 projects beyond the guide slot 11 and limits the pivoting range of the guide pin 12. When the pivot arm 4 is pivoted in and out of the guide device 10, the guide web 14 aligns the guide pin 12 relative to the guide slot 11. When the sash-side fitting part 8 is mounted on the sash 2, the guide web 14 is arranged on the side of a sash overlap 15 indicated by a dot-dash line. Fig. 1 shows, the sash overlap 15 is arranged at the outermost edge of the sash 2 and, when the window is closed, covers a rebate gap between frame 1 and sash 2.

[0026] The guide device 10 has a base plate 16 screwed to the wing and a bridge web 17 spaced from the base plate 16 with the guide slot 11. The spacing of the components is achieved via connecting webs 18, 19 manufactured in one piece with the bridge web 17 and welded to the base plate 16. A pin guide 20 and a pin lock 21 for the guide pin 12 are arranged below the guide slot 11. The pin guide 20 and the pin lock 21 are guided laterally on the connecting webs 18, 19. The pin guide 20 and the pin lock 21 are attached to the switching rod 13 and move with it. In the illustrated embodiment, the switching rod 13 is guided below the base plate 16. The base plate 16 has elongated holes for the positive connection of the shift rod 13 with the pin guide 20 and the pin lock 21.The guide slot 11 has a straight section 22 arranged parallel to the shift rod 13 and a bent portion 23 at the closed end. The straight section 22 of the guide slot 11 also has a widened portion 24 near its open end. This widened portion is arranged on the side of the guide web 14. The pin guide 20 and the pin lock 21 each have a projection 25, 26 with which they can be moved into the straight section 22 of the guide slot, thus blocking the straight section to prevent the guide pin 12 from passing through.

[0027] In the Fig. In the position shown in Figure 2, the pivot lock 21 is spaced from the offset 23. The pivot guide 20 is completely retracted below the bridge web 17. Starting from this position, the pivot arm 4 with the guide pin 12 can be pivoted against the guide web 14. It is thus aligned with the open end of the guide slot 11. Furthermore, the guide pin 12 is also positioned over the open end of the guide slot 11 when the sash 2 is pivoted into a closed position against the frame 1.

[0028] If you drive in the position of the wing 2 lying in the frame 1, starting from the position Fig. 2 the espagnolette fitting via the handle 6, the switching rod 13 can be moved upwards. In doing so, the pin guide 20 with its projection 25 is moved into the widened portion 24 of the guide slot 11, thus ensuring a constant width of the guide slot 11 for guiding the guide pin 12. The guide pin 12 is thus held between the pin guide 20 and the guide web 14 in front of the open end of the guide slot 11 and cannot be pivoted out of the guide slot 11 by pivoting the pivot arm 4, even when the sash 2 is in the position lying in the frame 1. The two fitting parts 7, 8 are thus coupled to one another via the pivot arm 4. When the window is subsequently opened, the guide pin 12 slides in the guide slot 11 until it abuts the offset 23. This position indicates a ventilation position of the opening limiting device 3 and is in Fig. 3. The opening width of the sash 2 is thus limited. When the window is closed and opened again, the guide pin 12 slides from the offset 23 along the straight section 22 to the guide web 14 and the pin guide 25. The coupling of the fitting parts 7, 8 and thus the opening width of the sash 2 can be adjusted without the need to drive the switching rod 13 again. Fig. The position shown in Figure 2 cannot be canceled.

[0029] If you start from the Fig. 3 shown position, the switching rod 13 via the handle 6 Fig. 1, the pin lock 21 moves over the offset 23. Thus, the movement of the guide pin 12 located in the offset 23 is blocked by the pin lock 21. This indicates a locking position of the opening limiting device 3 and is in Fig. 4. The wing 2 is thus reliably held in the parked position.

[0030] Fig. 5 shows an enlarged sectional view through the opening limiting device 3 from Fig. 4, along the line V-V, that the connecting webs 18, 19 for connecting the bridge web 17 to the base plate 16 are of unequal height, so that the pivot arm 4 guided in the guide slot 11 is slightly inclined. The guide pin 12 is designed as a mushroom head with a radial extension 27 and engages behind the bridge web 17. The pivot arm 4 has a chamfer 28 at each of its ends. The base plate 16 projects laterally beyond the switching rod 13, which is arranged in a rebate groove (not shown) of the wing 2.

[0031] Fig. 6 shows a further embodiment of an opening limiting device 103, which differs from the Fig. 1 to 5 only in that a pin lock 121 in the Fig. 4 shown end position of the switching rod 13 is guided close to the open end of the guide slot 11. As a result, the guide pin 12, when it is located in the straight section 22 of the slot guide 11 in the shown end position of the switching rod 13, is laterally supported by the pin lock 121. A projection 126 of the pin lock 121, however, only faces the offset 23 of the guide slot 11. Otherwise, the opening limiting device 103 is like the one shown in the Fig. 1 to 5 designed. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] EP 3 985 216 A1

[0003] EP 4 174 266 A1

[0004]

Claims

[1] Opening limiting device (1, 103) for a drive rod fitting (5) of a sash (2) of a window, a French window or the like, which can be pivoted against a frame (1), with a frame-side fitting part (7) and a sash-side fitting part (8), with a pivot arm (4) for connecting the fitting parts (7, 8) in a ventilation position, wherein the pivot arm (4) has a bearing (9) on one of the fitting parts (7) and is guided on the other of the fitting parts (8) by means of a guide pin (12) in a guide device (10), with a guide slot (11) of the guide device (10) which is open on one side, wherein the guide pin can be removed from the guide slot (11) in an inspection position, and with a switching rod (13) which can be coupled to the drive rod fitting (5) for controlling the movement of the guide pin in the guide slot, characterized bythat a guide web (14) is arranged on the side of the guide slot (11) opposite a pivoting movement of the guide pin (12) and that the guide web (14) projects beyond the guide slot (11) on this side. [2] Opening limiting device according to claim 1, characterized by that a pin guide (20) coupled to the switching rod (13) is arranged on the side of the guide slot (11) opposite the guide web (14) and is movable between a position projecting parallel to the guide web (14) and a position retracted into the guide slot (11). [3] Opening limiting device according to claim 1 or 2, characterized by that a pin lock (21, 121) connected to the switching rod (13) is movable between a position blocking the movement of the guide pin (12) in the guide slot (11) into a position releasing the movement of the guide pin (12). [4] Opening limiting device according to claim 2 or 3, characterized by that at least one of the components of the pin lock (21, 121) or of the pin guide (20) has a projection (25, 26) penetrating into the guide slot (11) and that the projection (25, 26) blocks the movement of the guide pin (12) in the guide slot in one position of the switching rod (13) and releases it in another position. [5] Opening limiting device according to claim 4, characterized by that the guide slot (11) has a widening (24) and that in the ventilation position the projection (25) of the pin guide (20) is arranged in the widening (24) to produce a uniform width of the guide for the guide pin (12). [6] Opening limiting device according to at least one of claims 3 to 5, characterized bythat the guide slot (11) has a bend (23) for receiving the guide pin (12) and that the pin lock (21, 121) covers the bend (23) in the locking position blocking the movement of the guide pin (23). [7] Opening limiting device according to at least one of claims 1 to 6, characterized by that the guide device (10) has a base plate (16) for screwing and a bridge web (17) spaced from the base plate (16) with the guide slot (11). [8] Opening limiting device according to claim 7, characterized by that the pin guide (20) and the pin lock (21, 121) are guided parallel to the direction of movement of the switching rod (13) between the base plate (16) and the bridge web (17). [9] Opening limiting device according to at least one of claims 1 to 8, characterized bythat the guide pin (12) has a mushroom-shaped extension (27) for engaging behind the guide slot (11). [10] Opening limiting device according to at least one of claims 7 to 9, characterized by that the bridge web (17) is connected to the base plate (16) via connecting webs (18, 19) arranged laterally next to the guide slot (11) and that the connecting webs (18, 19) are spaced from the guide slot (11). [11] Opening limiting device according to claim 10, characterized by that the connecting web (18) on the side of the bridge web (17) has a greater height than the connecting web (19) on the opposite side of the bridge web (17). [12] Opening limiting device according to at least one of claims 1 to 11, characterized by that the bearing (9) has a frictional connection to hold the swivel arm (4) in the inspection position. [13] Opening limiting device according to at least one of claims 1 to 12, characterized by that the swivel arm (4) has at least one end a chamfer (28) facing the opposite component. [14] Opening limiting device according to at least one of claims 6 to 13, characterized by that the pin lock (121) is guided in the locking position up to the widening (24) of the guide slot (11).

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