HARDWARE ARRANGEMENT FOR LOCKING A MOVABLE DOOR

Description

[0001] The present invention relates to a fitting arrangement according to the preamble of claim 1 or claim 11 for locking a sliding sash, such as the sash of a lift-and-slide door or a lift-and-slide window, as is known in essence from GB 2 220 700 A.

[0002] To lock a sliding sash, such as the sash of a lift-and-slide door or window, to a frame in its closed position, a bolt is typically provided on the frame. The drive rod of the sash's hardware engages behind this bolt in its locked position. Specifically, the drive rod of the hardware has an elongated opening with a slot-like or elongated first opening section of a certain width and a second opening section with a wider width. When the sash closes, the bolt first engages in the slightly wider second opening section. Subsequently, as the sash is lowered, the bolt engages in the slot-like or elongated first opening section.The elongated first opening section then engages the bolt head of the locking bolt with its edges, thus securing the sash to the frame. Similarly, an elongated opening is formed in the strike plate, along which the locking rod is slidably guided between its locking and unlocking positions. This elongated opening is partially aligned with the opening of the locking rod. The elongated opening in the strike plate allows the sash to be lowered when the locking bolt on the frame, in the closed position of the sliding sash, extends through the elongated opening in the strike plate and into the opening of the locking rod.

[0003] Recently, other hardware arrangements for locking a sliding sash to the frame have become known, in which no bolt latch is provided on the frame. Instead, for example, a corresponding locking element, such as a hook latch or a bolt latch, can be provided on the sash itself, which, in the closed position of the sash, engages with a strike plate provided on the frame to secure the sliding sash to the frame.

[0004] To incorporate such locking elements on the sash, specially designed hardware assemblies are currently required, specifically designed for attaching the respective locking element to the sliding sash. Depending on the type of locking mechanism or the specific locking element, different hardware assemblies must therefore be manufactured and kept in stock.

[0005] The invention is therefore based on the objective of providing a fitting arrangement for locking a sliding sash, which can be used regardless of the type of locking mechanism - for example, bolt latches on the frame, hook latches on the sash or bolt latches on the sash.

[0006] This problem is solved by a fitting arrangement having the features of claim 1 or those of claim 11.

[0007] The fitting assembly comprises a locking element which is connected to the drive rod by means of a coupling element and which extends, at least in the locking position, through both the opening of the drive rod, in particular through its first opening section, and through the elongated slot opening of the faceplate rail.

[0008] According to the invention, it is thus provided, in a sense, to upgrade a conventional hardware arrangement with a locking element that, in the closed position of the sliding sash, can engage with a locking part provided on the frame, for which purpose the locking element extends through both the opening of the drive rod and through the elongated opening of the strike plate. Insofar as a conventional hardware arrangement is referred to here, it is characterized by a strike plate and a drive rod that is slidably guided thereon between a locking position and an unlocking position, in which an opening is formed that is at least partially aligned with an elongated opening of the strike plate, and which has a slot-like orhas an elongated first opening section with a first width perpendicular to the longitudinal extension of the connecting rod and a second opening section merging into the first opening section at one end with a second width that is greater than the first width.

[0009] The opening in the connecting rod, through which the locking element extends at least in the locked position, is thus, in a sense, an elongated opening with a first width, wherein the elongated opening has an expanded area at one end in the form of a second opening section with a second width. This second opening section could, for example, be a circular opening section whose diameter corresponds to the second width, or it could be another elongated opening that extends from the first opening section or the elongated opening with the first width and has the second width.

[0010] Since the locking element of the upgraded fitting assembly is effectively connected to the drive rod, the locking element can be adjusted in the closed position of the sash by actuating the drive rod and thereby engaged with a locking part on the frame in order to secure the sliding sash to the frame.

[0011] In contrast, with a lift-and-slide sash featuring a conventionally fixed bolt on the frame, it is unnecessary to upgrade the hardware assembly with a locking element as described in the invention. This allows the bolt located on the frame to be engaged from behind the edges of the slot-like first opening section of the drive rod opening to lock the lift-and-slide sash to the frame. Therefore, depending on the locking method, one and the same hardware assembly can be used, eliminating the need to manufacture and stock different hardware assemblies.

[0012] According to an alternative embodiment of the invention, the locking element is designed as a hook or a hook bolt that can be pivoted about an axis between an out-of-engagement position corresponding to the unlocking position of the drive rod and an engaged position corresponding to the locking position of the drive rod. For this purpose, the coupling element can have a rack section that meshes with a gear section provided on the hook bolt. The hook bolt can thus be drivenly coupled to the drive rod via a rack and pinion drive. Therefore, in order to pivot the hook bolt between its engaged and out-of-engage positions, it is not necessary to have a rack section or toothed section on the existing fitting assembly or its drive rod that meshes with the gear section of the hook bolt to allow its adjustment.Rather, the fitting arrangement itself can remain unchanged, since the rack section is formed on the coupling element, which is coupled to the fitting arrangement or its connecting rod, which is known per se.

[0013] According to another alternative, the invention provides that the locking element is designed as a mushroom-headed pin which is fixedly mounted in the opening of the drive rod and remains there, regardless of whether the drive rod is in its locked or unlocked position.

[0014] Preferred embodiments of the present invention will now be discussed, although further embodiments may also be apparent from the dependent claims, the description of the figures and the drawings themselves.

[0015] According to a further embodiment, the rack section can run parallel to the drive rod, with the axis about which the hook bolt can pivot located between the drive rod and the rack section. Viewed from the drive rod, the hook is thus, in a sense, engaged from behind by the rack section.

[0016] If the hook has an essentially U-shaped form with a hinged end, where the axle is located, and an opposite free end, then, due to the fact that the hook bolt is engaged by the rack section in the manner described above, the free end of the hook bolt, upon reaching the engaged position, exhibits a component of movement that is oriented opposite to the direction of movement of the connecting rod upon reaching the locking position. Thus, if the connecting rod is moved downwards from its unlocked position towards its locked position, the free end of the hook bolt, upon reaching its engaged position, exhibits a component of movement that is directed upwards. The U-shaped hook bolt must therefore be oriented so that the "U" formed by the hook bolt is open upwards in the engaged position.that the opening of the "U" is at the top in the engaged position.

[0017] Since the rack section of the coupling element is spaced apart from the drive rod according to the preceding descriptions, a further embodiment provides that the coupling element has a coupling section that bridges the gap between the drive rod and the rack section and has a free end that is coupled to the drive rod. The coupling element can thus be an essentially L-shaped component, with the two legs of the "L" being formed on one side by the rack section and on the other side by the coupling section.

[0018] To allow the fitting assembly to be handled as a unit, and to avoid, for example, the need to mount the locking element as a separate component in the fitting groove, a further embodiment provides for the hook bolt and the coupling element to be arranged between two side walls attached to the faceplate rail. The hook bolt is pivotable about its axis on the side walls, and the coupling element is slidably mounted on the side walls along the longitudinal axis of the rack section. For example, a guide groove can be formed in each of the side walls, into which respective guide sections of the rack section engage, thus enabling the rack section to be slidably guided within the side walls.

[0019] According to yet another embodiment, the rack section may have a backlash or a certain amount of play relative to the hook bolt when the hook bolt is engaged, allowing for adjustment of the rack section with play between a first and a second backlash position. In particular, it may be provided that, when the hook bolt is engaged, a tooth formed on the hook bolt engages with play in a corresponding recess or tooth gap of the rack section, the play being large enough that, in the first backlash position, meshing of the other teeth of the gear section with the teeth of the rack section is possible, and that, in the second backlash position, meshing of the other teeth of the gear section with the teeth of the rack section is prevented.

[0020] In the second dead-gear position, the teeth of the gear section mesh with the teeth of the rack section, thus locking the gear mechanism. If, for example, the sash is lifted during a break-in attempt, this prevents the hook bolt from pivoting from its engaged position to its disengaged position, as the rack and pinion mechanism locks in the manner described above. Only when the rack section is moved against gravity from its second dead-gear position to its first dead-gear position by actuating the connecting rod do the teeth of the gear section of the hook bolt mesh with the teeth of the rack section, allowing the hook section to be rotated into its disengaged position as desired with further actuation of the connecting rod.

[0021] According to a further embodiment, a filler piece can be used as a coupling element to attach the mushroom-head pin to the opening of the drive rod. This filler piece carries the mushroom-head pin and fits snugly into the opening of the drive rod. The fitting assembly can thus be easily upgraded by mounting the filler piece, with its attached mushroom-head pin, in the opening of the drive rod.

[0022] According to a further embodiment, the filler piece can be secured in the opening of the connecting rod by means of the mushroom-headed pin itself. For this purpose, the mushroom-headed pin has a support section spaced apart from its mushroom head at its end. This support section is clamped against the edges of the slotted or elongated first opening section of the connecting rod by means of a screw element, such as a nut, which is screwed onto the end of the mushroom-headed pin opposite the mushroom head. The mushroom-headed pin thus functions, in a sense, as a kind of screw, by means of which the filler piece, with its mushroom-headed pin, is screwed firmly into the slotted first opening section.

[0023] In contrast to the embodiments described above, in which the hook bolt is coupled to the drive rod via a rack and pinion drive, a further embodiment provides for the coupling element connected to the drive rod to be coupled to the hook bolt via a drive pin. In other words, the coupling element and the hook bolt are pivotally connected to each other via the drive pin. The movement of the coupling element is thus transmitted to the hook bolt via the drive pin, so that the hook bolt is pivoted between its disengaged and engaged positions via the drive pin when the drive rod is moved between its unlocked and locked positions.

[0024] In particular, it can be provided that the drive pin extends through a first elongated opening in the coupling element, oriented perpendicular to the direction of movement of the connecting rod, and a second elongated opening in the hook bolt, which is oriented such that the axis of the hook bolt is a continuation of the longitudinal extent of the second elongated opening. The drive pin can thus move translationally relative to both the coupling element and the hook bolt, so that, as desired, no constraints occur between the hook bolt and the coupling element when the connecting rod and thus the coupling element are moved.

[0025] According to a further embodiment, a guide slot can be formed in at least one side wall, but preferably in both side walls between which the hook bolt and the coupling element are located. This guide slot slidably receives the drive pin and preferably includes a first elongated slot section aligned parallel to the direction of movement of the drive rod. The guide slot thus forms a positive guidance mechanism that positively guides the drive pin between a position corresponding to the engaged position and a position corresponding to the disengaged position of the hook bolt when the drive rod, and via it the coupling element, is moved between the unlocked and locked positions.

[0026] According to yet another embodiment, the first elongated slot section can transition at a first end into a second elongated slot section, which forms an angle between approximately 120° and 150° with the first elongated slot section and in which the drive pin rests when the hook bolt is in its disengaged position. Additionally or alternatively, the first elongated slot section can transition at a second end into a third elongated slot section, which forms an angle between approximately 120° and 150° with the first elongated slot section and in which the drive pin rests when the hook bolt is in its engaged position. In this embodiment, it is preferably provided that the end of the second and / or the third elongated slot section is located further away from the drive rod than the first elongated slot section.Because the second elongated slot section is angled relative to the first elongated slot section, only one component of the movement of the drive pin is transferred to the hook bolt, resulting in a slowing of the rotational speed of the hook bolt as it approaches its disengaged position, provided the drive rod or coupling element speed remains constant.

[0027] However, when the hook bolt reaches its engaged position, the angle of the third slot section relative to the first causes it to pivot slightly back towards its disengaged position when the drive rod is fully moved into its unlocked position. In this position, the hook bolt cannot be directly pivoted back into its disengaged position, even with force, for example, during a break-in attempt. Instead, the drive pin would first have to be pushed back into the first slot section. Because of the angle of the third slot section relative to the first, the mechanism locks, preventing the hook bolt from being forcibly pivoted back into its disengaged position.

[0028] The invention will now be described in the following purely exemplary manner with reference to the figures in which: Figs. 1a, 1b, 1c show a conventional fitting arrangement without an additional locking element or with an additional locking element in the form of a hook bolt or a bolt bolt in perspective view; Figs. 2a, 2b, 2c show the corresponding views of the Fig. 1a, 1b und 1c Without the strike plate, Figs. 3a, 3b, 3c show the fitting arrangement according to the Fig. 1a, 1b und 1c shown in a sectional view; Figs. 4a, 4b, 4c the fitting arrangement of the Fig. 1a, 1b, 1c in one view; Fig. 5 perspective views of the Fig. 2b or 2c with the locking element removed from the drive rod; and Figs. 6, 7 and 8 show an embodiment in which the coupling element connected to the drive rod is coupled to the hook bolt via a drive pin.

[0029] The following will first refer to the Fig. 1a , 2a , 3a and 4aA conventional fitting arrangement 10 is described, which, if required, can be upgraded with an additional locking element 30, 60 in the manner according to the invention. The fitting arrangement 10 has a faceplate 12 by means of which the fitting arrangement 10 can be mounted in a fitting groove of a sliding sash, such as a lift-and-slide sash (not shown), and by means of which the fitting groove is covered when the fitting arrangement 10 is mounted. Furthermore, the fitting arrangement 10 has a drive rod 14, which is slidably guided along the faceplate 12 between a locking position and an unlocking position.

[0030] As in particular the Fig. 2a As can be seen, several elongated openings are formed in the connecting rod 14, the elongated opening designated here by the reference numeral "16", comprising an elongated or slot-like first opening section 16a and a second opening section 16b, into which the first opening section 16a merges at one end and which has a greater width than the first opening section 16a. The elongated opening 16 is thus, in a sense, an elongated hole that has an elongated widening at its lower end. Put another way, the elongated opening 16 is, in a sense, two elongated holes of different widths that merge into one another.

[0031] Furthermore, a coupling opening 18 is formed in the connecting rod 14, the purpose and function of which will be discussed in more detail below. As further explained, in particular, the Fig. 1a A slotted opening 20 is also formed in the sleeve rail 12, whereby this slotted opening 20 aligns with a section of the slotted opening 16 of the drive rod 14 depending on the position of the drive rod 14, see for example the Fig. 4a , from which it can be deduced that in the locking position shown, the elongated hole 20 of the strike plate 12 is aligned with the first opening section 16a of the elongated hole opening 16 of the drive rod 14.

[0032] In the unlocked position of the drive rod 14, the second opening section 16b of the elongated slot opening 16 of the drive rod 14 aligns with the elongated slot opening 20 of the strike plate 12, so that in this unlocked state a bolt latch 22 attached to a frame (not shown) can be inserted into the two aligned openings 16b, 20 when a lift-and-slide sash, on which the fitting assembly 10 is located, is closed.

[0033] In this closed state, if the sash is now lowered from its unlocked position to its locked position by moving the drive rod 14, the position of the bolt 22 within the elongated hole 20 of the strike plate 12 changes. Likewise, in the locked position of the drive rod 14, the first opening section 16a of the elongated opening 16 of the drive rod 14, or rather the two opposing edges of this opening section 16a, engages the bolt head 24 of the bolt 22; see, for example, the Fig. 3a By means of this engagement of the bolt head 24 by the two opposing edge sections of the opening section 16a, the sliding sash is thus secured to the frame in its closed position. This corresponds in this respect to the known operating principle of such a fitting arrangement 10.

[0034] The following will now refer to the Fig. 1b ,2b , 3b , 4bA first embodiment is described in which the previously described fitting arrangement 10 was upgraded by means of a locking element in the form of a hook bolt 30. The hook bolt 30 is a substantially U-shaped hook element arranged between two side walls 32, which are spaced apart and parallel to each other and are attached to the faceplate rail 12. The hook bolt 30 has an end 36 hinged to the two side walls 32 and a free end 34 opposite the hinged end 36. In particular, the hook bolt 30 is pivotable about an axis 38 between its engaged position, which corresponds to the locking position of the drive rod 14, and a disengaged position, which corresponds to the unlocking position of the drive rod 14.In the engaged position, the hook bolt 30 extends through the elongated opening 16 of the drive rod 14 and in particular through the first opening section 16a of the elongated opening 16.

[0035] The coupling element 40 is also located between the two side walls 32 and is slidably mounted on them parallel to the longitudinal extent of the connecting rod 14, for which purpose an elongated slot 56 can be formed in each of the side walls 32, which slidably receives a guide section 58 formed on the coupling element 40. The guide track thus formed in the Fig. 1b and 2b as well as in the middle representation of the Fig. 5 recognizable.

[0036] To synchronize the movement of the hook bolt 30 with that of the connecting rod 14, so that the engaged position of the hook bolt 30 corresponds to the locking position of the connecting rod 14 and the disengaged position of the hook bolt 30 corresponds to the unlocking position of the connecting rod 14, the hook bolt 30 is connected to the connecting rod 14 by means of a coupling element 40 in a drive-effective manner (see in particular the Fig. 3b The movement of the connecting rod 14 is thus transferred to the hook bolt 30 via the coupling element 40, as will be explained in more detail below.

[0037] The coupling element 40 is a component with a rack section 42 running parallel to the connecting rod 14 and a coupling section 44 that bridges the gap between the connecting rod 14 and the rack section 42, in which the axle 38 is located. The coupling section 44 has a free end 46 that engages positively in the coupling opening 18 of the connecting rod 14, so that the coupling element 40 is carried along by the connecting rod 14. The movement of the coupling element 40 is transmitted via its rack section 42 to the hook element 30, for which purpose a gear section 48 is provided at the articulated end 36 of the hook element 30. The teeth of this gear section 48 mesh with those of the rack section 42. See the [reference to be added]. Fig. 3b , in which, however, due to the sectioning, only a single tooth 50 of the gear section 48 is fully visible. The hook bolt 30 is thus effectively connected to the drive rod 14 via the coupling element 40 and can therefore, by actuating the drive rod 14, be pivoted from its disengaged position, in which the free end 34 of the hook bolt 30 is located approximately below the axis 38, through the elongated opening 16 of the drive rod 14 and through the elongated hole 20 of the strike plate 12, until the free end 34 of the hook bolt 30 engages the bolt 52 of a locking element 54 on a frame (not shown) as shown in the illustration. Fig. 3b The invention thus utilizes the already existing elongated slot openings 16, 20 of the strike plate 12 or the drive rod 14 to receive the hook bolt 30 in its locking position.

[0038] Because the rack section 42 engages the gear section 38 of the hook bolt 30, extending from the connecting rod 14, the free end 34 of the hook bolt 30 exhibits an upward movement component when the hook bolt 30 reaches the engaged position, while the connecting rod 14 moves downwards towards its locking position. This results in a reversal of movement between the direction of the connecting rod 14 and the free end 34 of the hook bolt 30. This is why, in the embodiment shown here, the essentially U-shaped hook bolt 30 is oriented such that the opening of the "U" is at the top in the engaged position.

[0039] To prevent the hook bolt 30 from being forcibly pivoted from its engaged position to its disengaged position when a lift-and-slide sash equipped with the fitting assembly 10 is forcibly lifted, the fitting assembly 10 has a self-locking function that locks the fitting assembly 10 and thus prevents the hook bolt 30 from being pivoted from its engaged position to its disengaged position by lifting the lift-and-slide sash.

[0040] To realize this self-locking function, the rack section 42 in the engaged position of the hook bolt 30 has a dead travel or a certain amount of play relative to the hook bolt 30, which allows a play-in adjustment of the rack section 42 between a first and a second dead travel position, into which the rack section 42 tends to be forced by gravity. For this purpose, it is specifically provided that the last tooth 50 of the gear section 48 engages with play in a recess or tooth gap 51 of the rack section 42 in the engaged position of the hook bolt 30, whereby this play is so large that in the first dead-ground position meshing of the further teeth of the gear section 48 with the teeth of the rack section 42 is possible and that in the second dead-ground position meshing of the further teeth of the gear section 48 with the teeth of the rack section 42 is prevented.

[0041] The clearance-free engagement of tooth 50 in the corresponding receptacle or tooth gap 51 is made possible by the fact that the tooth gap 51 in question has a dimension in the longitudinal direction of the rack section 42 that is approximately twice as large as the dimension of tooth 50 measured in the longitudinal direction of the rack section 42. Therefore, if the rack section 48 is located according to the Fig. 3b In its second dead-end position, into which it is forced by gravity, the head surface of the next tooth 53 meets the head surface of a tooth of the rack section 42, thereby preventing a violent pivoting of the hook bolt 30.

[0042] Only when the connecting rod 14 is slightly raised from its locking position and thus the rack section 42 moves against gravity from its second dead-ground position according to Fig. 3 The self-locking function of the fitting arrangement 10 is also slightly lifted, since in the first dead-run position of the rack section 42 the tooth 53 no longer meets the head surface of a tooth of the rack section 42, but enters the next tooth gap.

[0043] The following will now refer to the Fig. 1c , 2c , 3c and 4c a second embodiment is described in which the fitting arrangement 10, known per se, is modified according to the Fig. 1a , 2a , 3a and 4aThe system was upgraded by means of a locking element in the form of a mushroom-headed pin 60, which, in the locked position, extends through both the elongated opening 16 of the drive rod 14 and the elongated hole 20 of the strike plate 12. The mushroom-headed pin 60 is supported by a filler piece 62, which serves as a coupling element and through which the mushroom-headed pin 60 extends; see the figure below. Fig. 3c as well as the correct representation of the Fig. 5 .

[0044] As particularly the right-wing representation of the Fig. 5 The filler piece 62, which can be removed, has a contour on its front side that essentially corresponds to the edge of the elongated opening 16 or the edge of the two opening sections 16a, 16b of the elongated opening 16 of the connecting rod 14. The filler piece 62 can thus be fitted into the elongated opening 16 of the connecting rod 14 in a form-fitting manner and secured therein, for which purpose the mushroom-headed pin 60 has a collar-like abutment section 66 spaced apart from its mushroom head 64, which bears against the edge of the first opening section 16a of the elongated opening 16 of the connecting rod 14, see for example the Fig. 2c . On the other hand, a nut 68 is screwed onto the end of the mushroom head pin 60 opposite the mushroom head 64, by which the abutment section 66 is clamped against the opposite edges of the first opening section 16a.

[0045] The mushroom-headed pin 60 can thus be moved from its out-of-engage position to its engaged position via the drive rod 14, in which it engages a bolt section of a locking part provided on a frame.

[0046] The following will now refer to the Figs. 6, 7 und 8 An embodiment is described in which the hook bolt 30 is not as in the embodiment according to the Fig. 1b , 2b , 3b , 4b not via a rack and pinion drive, but via a drive pin 70 effectively engaging with the connecting rod (only in the Fig. 6 (schematically indicated) connected coupling element 40. In this embodiment as well, the hook bolt 30 is a substantially U-shaped hook element arranged between two side walls 32, which are spaced apart and parallel to each other and are attached, or can be attached, to the strike plate (not shown). The hook bolt 30 has an end 36 hinged to the two side walls 32 and a free end 34 opposite the hinged end 36. The hook bolt 30 is thus pivotable about an axis 38 between its engaged position, which corresponds to the locking position of the drive rod 14, and an out-of-engage position, which corresponds to the unlocking position of the drive rod. As in the embodiment of the Fig. 1b , 2b , 3b and 4bThe hook bolt 30 extends through the elongated opening 16 of the drive rod 14 and in particular through the first opening section 16a of the elongated opening 16 when it is in the engaged position.

[0047] The hook bolt 30 is flanked on both sides by a coupling element 40. In other words, the two coupling elements 40 are located between the hook bolt 30 and the respective side wall 32. The coupling elements 40 are essentially identical in design, which is why only the configuration of one of the two coupling elements 40 will be discussed below. The same applies to the side walls 32.

[0048] The coupling element 40 is slidably guided on the respective side wall 32 parallel to the longitudinal extent of the connecting rod 14. For this purpose, an elongated slot 72 is formed in the coupling element 40, through which the axis 38 extends, on which the hook bolt 30 is pivotably mounted on the side walls 32. Furthermore, for the effective coupling of the coupling element 40 with the connecting rod 14, a lug 74 is formed on the coupling element 40, which is positively engaged by a corresponding slot 88 in the connecting rod 14. The coupling element 40 is thus positively connected to the connecting rod 14 and guided parallel to the connecting rod 14 by the axis 38 extending through the slot 72 formed in the coupling element 40.

[0049] To synchronize the movement of the hook bolt 30 with that of the drive rod 14, so that the engaged position of the hook bolt 30 corresponds to the locking position of the drive rod 14 and the disengaged position of the hook bolt 30 corresponds to the unlocking position of the drive rod 14, the hook bolt 30 is drivenly coupled to the coupling element 40 connected to the drive rod 14 via the drive pin 70. In the specific embodiment shown according to the Fig. 6, 7 und 8 The drive pin 70 extends through a first elongated opening 76 in the coupling element 40, oriented perpendicular to the direction of movement of the connecting rod 14, and through a second elongated opening 78 in the hook bolt 30. The second elongated opening 78 is oriented such that the axis 38 of the hook bolt 30 is a continuation of the longitudinal extension of the second elongated opening 78. The drive pin 30 can thus move translationally relative to both the coupling element 40 and the hook bolt 30, so that no constraints occur between the hook bolt 30 and the coupling element 40 when the connecting rod 14 and thus the coupling element 40 are moved. For example, if the coupling element 40 is moved from the opening in the Fig. 7 When the unlocking position shown is moved downwards, the drive pin 70 can slide along the elongated opening 78 of the hook bolt 30 in the direction of the axis 38, since otherwise a pivoting movement of the hook bolt 30 would be blocked.

[0050] How further the Fig. 6 To allow removal, a guide slot 80 is formed in the front side wall 32, and a corresponding guide slot may be formed in the rear side wall 32. The guide slots 80 formed in the two side walls 32 slidably receive the ends of the drive pin 70. The guide slot 80 thus forms a positive guide, by which the drive pin 70 moves between a position corresponding to the engaged position of the hook bolt 30 and a position corresponding to the disengaged position of the hook bolt 30 (as shown in the Fig. 6, 7 und 8 (as shown) is positively guided when the connecting rod 14 and, via this, the coupling element 40 is moved between the unlocking position and the locking position.

[0051] Specifically, in the embodiment shown here, the guide slot 80 has a first elongated slot section 82 aligned parallel to the direction of movement of the drive rod 14. In this first elongated slot section 82, the driver pin 70 is guided over most of the pivoting movement of the hook bolt 30 between its engaged position and its disengaged position.

[0052] At its upper end, the first elongated slot section 82 transitions into a second elongated slot section 84, with which the first elongated slot section 82 forms an angle between approximately 120° and 150°. The angle in question is chosen such that the longitudinal extent of the second elongated slot section 84 coincides with the longitudinal extent of the elongated slot opening 78 of the hook bolt 30 when the latter is in its disengaged position according to the Fig. 6, 7 und 8 Shortly before reaching the unlocked position of the connecting rod 14, the drive pin 70 thus enters the second elongated slot section 84, which means that only one component of the movement of the drive pin 70 is transmitted to the hook bolt 30, which, with a constant connecting rod or coupling element speed, leads to a slowing of the rotational speed of the hook bolt 30 as it approaches its disengaged position.

[0053] At its lower end, the first elongated slot section 82 of the guide slot 80 transitions into a (third) elongated slot section 86, which also forms an angle of approximately 120° to 150° with the first elongated slot section 82. The drive pin 70 comes to rest in this third elongated slot section 86 when the hook bolt 30 approaches its engaged position. To be precise, due to the angle of the third elongated slot section 86 relative to the first elongated slot section 82, the hook bolt 30 is pivoted back a short distance towards its disengaged position when the connecting rod 14 is fully moved into its engaged position, thus guiding the drive pin 70 along the third elongated slot section 86 to its end.

[0054] In this position, the hook bolt 30 cannot be forcibly pivoted directly back into its disengaged position, as this would require the drive pin 70 to first be pushed back into the first elongated slot section 82. However, this is not possible by simply pivoting the hook bolt 30 towards its disengaged position. The hook bolt 30 is thus secured in its engaged position due to the angled design of the third elongated slot section 86, preventing it from being forcibly pivoted back into its disengaged position, for example, during a break-in attempt. Bezugszeichenliste

[0055] 10 Fitting arrangement 12 Faceplate rail 14 Drive rod 16 Slotted opening 16a First opening section 16b Second opening section 18 Coupling opening 20 Slotted hole 22 Bolt latch 24 Bolt head 30 Hook latch 32 Side walls 34 Free end 36 Hinged end 38 Axle 40 Coupling element 42 Rack section 44 Coupling section 46 Free end 48 Gear section 50 Tooth 51 Tooth gap 52 Latch 53 Tooth 54 Locking part 56 Slots 58 Guide sections 60 Mushroom head pin 62 Filler piece 64 Mushroom head 66 Abutment section 68 Nut 70 Drive pin 72 Slot 74 Nose 76 First slotted opening 78 Second slotted opening 80 Guide slot 82 first slot section 84 second slot section 86 third slot section 88 slot

Claims

1. A fitting arrangement (10) for locking a displaceable leaf of a door or a window, for example the leaf of a lift-and-slide door or a lift-and-slide window, comprising a cover rail (12) for covering a fitting groove formed in a sliding leaf and a drive rod (14), which is displaceably guided in a translatory manner along the cover rail (12) between a locking position and an unlocking position, wherein an elongated hole opening (20) is formed in the cover rail (12) and an opening (16), which is at least regionally aligned with the elongated hole opening (20), is formed in the drive rod (14); wherein the fitting arrangement (10) further comprises a latch element (30, 60) which is drive-effectively connected to the drive rod (14) by means of a coupling element (40) and which, at least in the locking position, extends through both the opening (16) of the drive rod (14) and the elongated hole opening (20) of the cover rail (12), characterized in that the opening (16) formed in the drive rod (14) comprises a slot-like first opening section (16a) having a first width and a second opening section (16b) which has a second width that is greater than the first width and into which the first opening section (16a) merges at one end; wherein the latch element (30, 60) is a hook latch (30) which is pivotable about an axis (38) between an out-of-engagement position corresponding to the unlocking position and an in-engagement position corresponding to the locking position, wherein the hook latch (30) extends through the first opening section (16a) in the in-engagement position.

2. A fitting arrangement (10) according to claim 1, wherein the coupling element (40) has a gear rack section (42) which is in a meshing engagement with a gear wheel section (48) provided at the hook latch (30).

3. A fitting arrangement (10) according to claim 2, wherein the gear rack section (42) is aligned parallel to the drive rod (14), wherein the axis (38) about which the hook latch (30) is pivotable is disposed between the drive rod (14) and the gear rack section (42).

4. A fitting arrangement (10) according to claim 1, 2 or 3, wherein the coupling element (40) has a coupling section (44) which bridges the distance between the drive rod (14) and the gear rack section (42) and which has a free end (46) coupled to the drive rod (14).

5. A fitting arrangement (10) according to claim 1, wherein the coupling element (40) is drive-effectively coupled to the hook latch (30) via a drive pin (70), wherein it is in particular provided that the drive pin (70) extends through a first elongated hole opening (76), which is oriented perpendicular to the direction of movement of the drive rod (14), in the coupling element (40) and a second elongated hole opening (78) in the hook latch (30), said second elongated hole opening being oriented such that the axis (38) of the hook latch (30) is located in continuation of the longitudinal extent of the second elongated hole opening (78).

6. A fitting arrangement (10) according to at least one of the claims 1 to 5, wherein the hook latch (30) has a U-shaped design having a hinged end (36), at which the axis (38) is located, and an oppositely disposed free end (34), wherein the free end (34), upon reaching the in-engagement position, has a movement component which is oriented opposite to the direction of movement of the drive rod (14) upon reaching the locking position.

7. A fitting arrangement (10) according to at least one of the claims 1 to 6, wherein the hook latch (30) and the coupling element (40) are arranged between two side walls (32) fastened to the cover rail (12), wherein the hook latch (30) is pivotably supported about the axis (38) at the side walls (32) and the coupling element (40) is displaceably supported at the side walls (32) in the direction of the longitudinal extent of the gear rack section (42).

8. A fitting arrangement (10) according to claim 7, wherein a guide slot (80) is formed in at least one side wall (32) and displaceably receives the drive pin (70), wherein it is in particular provided that the guide slot (80) comprises a first elongated hole section (82) aligned parallel to the direction of movement of the drive rod (14).

9. A fitting arrangement (10) according to claim 8, wherein the first elongated hole section (82) merges at a first end into a second elongated hole section (84) which includes an angle between 120° and 150° with the first elongated hole section (82) and in which the drive pin (70) comes to rest when the hook latch is in its out-of-engagement position; and / or the first elongated hole section (82) merges at a second end into a third elongated hole section (86) which includes an angle between 120° and 150° with the first elongated hole section (82) and in which the drive pin (70) comes to rest when the hook latch (30) is in its in-engagement position; wherein it is in particular provided that the end of the second and / or third elongated hole section (84, 86) is further away from the drive rod (14) than the first elongated hole section (82).

10. A fitting arrangement (10) according to at least one of the claims 2 to 4, 6 and 7, wherein, in the in-engagement position of the hook latch (30), the gear rack section (42) has a backlash relative to the hook latch (30) that enables an adjustment with play of the gear rack section (42) between a first and a second backlash position, wherein it is in particular provided that, in the in-engagement position of the hook latch (30), a tooth (50) formed at the hook latch (30) engages into a recess (51) of the gear rack section (42) with play, wherein the play is so great that, in the first backlash position, a meshing of the further teeth (53) of the gear wheel section (48) with the teeth of the gear rack section (42) is possible, and that, in the second backlash position, a meshing of the further teeth (53) of the gear wheel section (48) with the teeth of the gear rack section (42) is prevented.

11. A fitting arrangement (10) for locking a displaceable leaf of a door or a window, for example the leaf of a lift-and-slide door or a lift-and-slide window, comprising a cover rail (12) for covering a fitting groove formed in a sliding leaf and a drive rod (14), which is displaceably guided in a translatory manner along the cover rail (12) between a locking position and an unlocking position, wherein an elongated hole opening (20) is formed in the cover rail (12) and an opening (16), which is at least regionally aligned with the elongated hole opening (20), is formed in the drive rod (14); wherein the fitting arrangement (10) further comprises a latch element (30, 60) which is drive-effectively connected to the drive rod (14) by means of a coupling element (40) and which, at least in the locking position, extends through both the opening (16) of the drive rod (14) and the elongated hole opening (20) of the cover rail (12), characterized in that the opening (16) formed in the drive rod (14) comprises a slot-like first opening section (16a) having a first width and a second opening section (16b) which has a second width that is greater than the first width and into which the first opening section (16a) merges at one end; wherein the latch element (30, 60) is a mushroom-head pin (60) which is assembled in a fixed manner in the opening (16) of the drive rod (14).

12. A fitting arrangement (10) according to claim 11, wherein a filling piece (62), through which the mushroom-head pin (60) extends, is fitted into the opening (16) of the drive rod (14) in a form-fitting manner.

13. A fitting arrangement (10) according to claim 11 and / or 12, wherein the mushroom-head pin (60) has a mushroom head (64) at one end and, spaced apart therefrom, an abutment section (66) which is tensioned against the edges of the slot-like first opening section (16a) of the drive rod opening (16) by means of a screw element (68) which is screwed onto the end of the mushroom-head pin (60) that is disposed opposite the mushroom head (64).