Fitting assembly for a window, a door or the like for actuating a parking brake

The fitting arrangement enhances parking brake actuation by allowing a greater stroke through decouplable coupling sections and a backstop, ensuring reliable operation and easy assembly, addressing the limitations of existing designs.

EP4632180B1Active Publication Date: 2026-06-03ROTO FRANK FENSTER & TURTECHNOLOGIE GMBH

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
ROTO FRANK FENSTER & TURTECHNOLOGIE GMBH
Filing Date
2025-04-02
Publication Date
2026-06-03

AI Technical Summary

Technical Problem

Existing fitting arrangements for parking brakes in windows or doors limit the stroke of the drive rod, restricting the actuation of the parking brake and requiring additional stroke compensation elements.

Method used

A fitting arrangement with a locking element and a transmission element featuring coupling sections that can be coupled or decoupled, allowing for a greater stroke of the locking element, and incorporating a backstop to prevent unintentional release, along with a housing design for easy assembly and guide elements for correct positioning.

Benefits of technology

Enables reliable actuation of the parking brake with a larger stroke without additional compensation elements, ensuring secure locking and easy assembly, while preventing unintentional activation.

✦ Generated by Eureka AI based on patent content.

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Abstract

A fitting arrangement (24, 124) for a window (10), a door or the like for actuating a parking brake (16) with a locking element (36, 136) that can be driven by a drive rod (30) and moved between two end positions, and with a transmission element (34, 134) that can be arranged in a rotationally fixed manner on an actuating shaft (22) of the parking brake (16), wherein the locking element (36, 136) has a first coupling section (42) and the transmission element (34, 134) has a second coupling section (44), is characterized in that the coupling sections (42, 44) can be coupled to the transmission element (34, 134) for transmitting a movement of the locking element (36, 136) and are decoupled in at least one end position of the locking element (36, 136).
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Description

[0001] The invention relates to a fitting arrangement for a window, a door or the like for actuating a parking brake with a locking element driven by a drive rod and movable between two end positions, and with a transmission element that can be arranged non-rotatably on an actuating shaft of the parking brake, wherein the locking element has a first coupling section and the transmission element has a second coupling section.

[0002] Such a fitting arrangement is known, for example, from WO 2005 / 080 723 A1.

[0003] Parking brakes for windows or doors are generally known. They serve to hold the open sash in any desired position relative to the frame. The aim is to activate the parking brake by turning the handle. To actuate the parking brake, the actuating shaft must be rotated. The coupling sections convert the linear movement of the drive rod into a rotary movement of the actuating shaft. In the solution of the aforementioned prior art, the coupling sections are always engaged with each other. This severely limits the stroke of the drive rod.

[0004] The object of the present invention is therefore to further develop a fitting arrangement of the type mentioned at the outset in such a way that, firstly, the actuation of the parking brake is ensured and, secondly, the stroke of the drive rod is not limited by the parking brake.

[0005] According to the invention, this problem is solved by a fitting arrangement for a window, door, or the like for actuating a parking brake, comprising a locking element driven by a connecting rod and movable between two end positions, and a transmission element rotatably mounted on an actuating shaft of the parking brake, wherein the locking element has a first coupling section and the transmission element a second coupling section, and wherein the coupling sections can be coupled to transmit the movement of the locking element to the transmission element and are decoupled in at least one end position of the locking element. Depending on the position of the locking element, the two coupling sections are thus coupled or decoupled. The locking element can therefore execute a greater stroke than in the prior art, or stroke compensation elements can be omitted.In particular, it may be provided that the parking brake is only actuated in a medium stroke range of the locking element.

[0006] Particular advantages arise when the coupling sections are designed as gear teeth. In particular, the coupling sections can be designed as pinion or rack sections. Coupling sections designed in this way can be easily engaged and disengaged from each other.

[0007] A particularly simple design results when one of the coupling sections is configured as a tooth and the other as a tooth gap. For example, the locking element can have a tooth and the transmission element a tooth gap. During an upward movement of the locking element, for example, the tooth can engage with the tooth gap and thereby engage the transmission element, rotating the actuating shaft to activate the parking brake. If the locking element is then moved further, the tooth disengages from the tooth gap.

[0008] The reliability of the parking brake can be improved by incorporating a backstop on the locking element to prevent unintentional release. For example, the tooth that is no longer engaged with the tooth gap can interact with a stop on the transmission element, thus preventing the actuating shaft from rotating backward and consequently preventing the parking brake from releasing. Only when the locking element is moved downward again and the tooth engages with the tooth gap is the transmission element, and therefore the actuating shaft, allowed to move to release the parking brake.

[0009] Further advantages arise, particularly when the sash is closed, if a strike plate is provided into which the locking element can engage in a locking or braking position. Thus, a sash can, for example, be locked to a frame in an upper corner area. Additionally, when the locking element is fully extended, the parking brake is activated. The sash is therefore doubly secured. Furthermore, a locking bolt can be arranged on the drive rod, which also engages in a strike plate, creating an additional locking position.

[0010] It is particularly preferred if the locking element can have a stroke of at least 15 mm, preferably at least 18 mm. This ensures that the locking element engages with a corresponding strike plate. Even a larger upper rebate gap between the sash and the fixed frame can be bridged by the locking element with such a stroke.

[0011] Furthermore, a housing may be provided in which the transmission element and / or the actuating shaft is / are mounted or can be mounted. The housing may, for example, be designed to be received in a fitting groove.

[0012] The assembly of the fitting can be simplified if the housing is designed in two parts. This allows the transmission element, if necessary together with the actuating shaft, to be inserted into one housing part and then secured in the housing by the second housing part.

[0013] The housing parts can be locked together. This allows the housing to be assembled without tools.

[0014] The locking mechanism can be achieved particularly easily by using a metal housing part and a plastic housing part. The plastic part can be flexible, especially elastic, thus facilitating the locking action. The metal housing part can have screw holes, allowing it, and therefore the entire housing, to be fixed to the wing.

[0015] A first guide element can be arranged on the locking element and a second guide element on the transmission element, which interact when the parking brake is open. In particular, this allows for center fixation, ensuring the fitting can be mounted in the correct position on the sash. Furthermore, the interaction of the two guide elements can provide anti-rotation protection. This prevents the operating shaft from unintentionally rotating and the parking brake from being unintentionally activated. For example, a groove can be provided on the transmission element and a rib on the locking element that is guided in the groove.

[0016] According to a further embodiment of the invention, a drive rod can be provided and the locking element can be coupled to the drive rod without stroke compensation. This allows for a direct coupling of the locking element and the drive rod. No additional elements are required to achieve stroke compensation.

[0017] The invention also encompasses a window, a door or the like with a fitting arrangement according to the invention.

[0018] Further features and advantages of the invention will become apparent from the following description of exemplary embodiments of the invention with reference to the figures in the drawing, which show details essential to the invention, as well as from the claims. The features shown therein are not necessarily to scale and are depicted in such a way that the inventive features can be clearly seen. The various features can be implemented individually or in any combination in variants of the invention.

[0019] The schematic drawing shows exemplary embodiments of the invention in various stages of use, which are explained in more detail in the following description.

[0020] They show: Fig. 1 a perspective view of a window with an open sash and fitting arrangement according to the invention; Fig. 2 a partial exploded view of a first embodiment of the fitting arrangement according to the invention; Fig. 3 a side view of the fitting arrangement according to the first embodiment; Fig. 4 a sectional view along line IV-IV of the Figure 3 ; Fig. 5a-d different locking positions to illustrate the activation of the parking brake; Fig. 6 a sectional view through a window with a closed sash; Fig. 7 one of the Figure 2 corresponding representation of a second embodiment of the fitting arrangement according to the invention; Fig. 8 one of the Figure 3 A corresponding representation of a second embodiment of the fitting arrangement; Fig. 9 a sectional view along line IX-IX in the Figure 8 ; Fig. 10a-c Illustrations to explain the second embodiment of the fitting arrangement; Fig. 11 a two-part housing.

[0021] The Figure 1 Figure 1 shows a perspective view of a window 10 with a fixed frame 12 and a sash 14. The sash 14 is shown open in the position shown. In the open position, the sash 14 is secured by a locking brake 16. The locking brake 16 has a slide 18 that is movable relative to a guide 20 when the locking brake 16 is released. The slide 18 can be locked in different relative positions to the guide 20 via an actuating shaft 22 of a fitting assembly 24. The slide 18 is coupled to the fixed frame 12 via a link 26.

[0022] The fitting assembly 24 has a gearbox 28 by which a rotary movement of an actuating handle (not shown), for example a grip, can be converted into a linear movement of a drive rod 30. The drive rod 30 is coupled to a locking element (not shown) which can interact with a transmission element 34 in the area of ​​a housing 32. The transmission element 34 is rotationally fixed to the actuating shaft 22.

[0023] The Figure 2Figure 24 shows a partial exploded view of the fitting assembly. The locking element 36 is visible here, which can be coupled to the drive rod 30 via a coupling section 31 and driven by it in the direction of the double arrow 38. A locking pin 40 is coupled to the locking element 36, which, in a closed position, also serves to lock the sash 14 to the frame 12. It can be seen that the transmission element 34 is mounted in the housing 32. The actuating shaft 22 has a flattened section 40, which allows the transmission element 34 to be arranged in a rotationally fixed manner on the actuating shaft 22, with the transmission element 34 having a receptacle whose cross-section is adapted to the cross-section of the actuating shaft 22.

[0024] The Figure 3 Figure 24 shows a side view of the fitting arrangement. The elements described so far are indicated with corresponding reference numbers.

[0025] The Figure 4shows a sectional view according to line IV-IV of the Figure 3 .

[0026] In the Figure 4 It can be seen that a coupling section 42 is arranged on the locking element 36, which in the illustrated embodiment is designed as a tooth. On the transmission element 34, a coupling section 44 is arranged, which is designed as a tooth gap. The locking element 36 is in its lower end position. The coupling sections 42 and 44 are spaced apart from each other and are not coupled together. Furthermore, it can be seen that the actuating shaft 22 is received in the receptacle 46 of the transmission element 34 and that the transmission element 34 is arranged on the actuating shaft 22 in a rotationally fixed manner.

[0027] The perspective representation of the Figure 5a essentially corresponds to the Figure 4The locking element 36 is in its lower end position. The coupling sections 42 and 44 are not coupled to each other. When the connecting rod 30 is actuated and thus the locking element 36 is moved upwards, as is the case in the Figure 5b As can be seen, the coupling section 42 engages with the coupling section 44. The transmission element 34 is not yet rotated. If the connecting rod 30 and thus the locking element 36 is moved further upwards, the transmission element 34 is carried along by the locking element 36 due to the coupling of the coupling sections 42 and 44, so that the transmission element 34 and thus the actuating shaft 22 are rotated, see Figure 5c .

[0028] In the Figure 5dAnother end position of the locking element 36 is shown. This position corresponds to a braking position of the parking brake 16. The actuating shaft 22 is maximally rotated. The coupling section 42 is no longer completely within the coupling section 44. These are at least partially decoupled. In contrast, the coupling section 42 acts as a back-rotation device, since a stop 46 of the transmission element 34 is blocked by the coupling section 42. Furthermore, it can be seen that the locking element 36, with its free end 48, projects upwards beyond the housing 32, which can be arranged in the fitting groove of the sash 14. The free end 48 of the locking element 36 can thus interact with a strike plate 50 arranged on the fixed frame 12, as shown in the Figure 6As shown, in an upper end position of the locking element 36, the free end 48 of the locking element 36 engages in the strike plate 50 when the sash 14 is in a closed position. This results in an additional locking of the sash 14 to the frame 12.

[0029] The parking brake is released in the reverse order of... Figure 5a - 5d When the locking element 36 is retracted via the connecting rod 30, the coupling section 42 moves into the coupling section 44 and, with a further downward movement of the locking element 36, engages the transmission element 34, thus releasing the parking brake 16. After the parking brake 16 is released, the locking element 36 moves further downward, decoupling the coupling sections 42 and 44. This decoupling allows for a greater stroke for the movement of the locking element 36 than is possible in the prior art.

[0030] The Figure 7Figure 1 shows an alternative embodiment of a fitting arrangement 124 according to the invention. The fitting arrangement 124 also has the drive rod 30, which can be coupled to the coupling section 31 and moved in the direction of the double arrow 38. A locking element 136 can be moved by means of the drive rod 30. The locking element 136 interacts with a transmission element 134 mounted in a housing 132. The actuating shaft 22 can be inserted into the transmission element 134, so that the transmission element 134 and the actuating shaft 22 are rotationally fixed to one another. A locking pin 40 can also be moved via the drive rod 30.

[0031] The Figure 8 shows a representation analogous to Figure 3 of the fitting arrangement 124. Previously described elements are entered with corresponding reference numbers.

[0032] The Figure 9 shows a sectional view along line IX-IX of the Figure 8Here it can be seen that the locking element 136 also has a coupling section 42 designed as a tooth, which can interact with a coupling section 44 of the transmission element 134 designed as a tooth gap. The locking element 136 additionally has a guide element 150 designed as a projection, which is arranged centrally with respect to the width of the locking element 136. Furthermore, the guide element 150 is arranged at the top of the locking element 136. In the position shown, in which the coupling sections 42 and 44 are not yet engaged with each other, the guide element 150 projects into a corresponding guide element 152 of the transmission element 134 designed as a groove. The guide element 152 is designed in a slot-like or groove-like form.The guide elements 150 and 152 hold the transmission element 134, and thus the actuating shaft 22, in a mounting position, ensuring that the transmission element 134 and the actuating shaft 22 are correctly oriented when the fitting assembly 124 is installed. With the fitting assembly 124 installed, the interaction of the guide elements 150 and 152 in the position shown prevents the transmission element 134 from being unintentionally rotated. The parking brake 16 is therefore reliably held in the open position.

[0033] A corresponding position in a perspective view is in the Figure 10a shown. The coupling sections 42, 44 are not yet engaged with each other. The locking element 136 is in a lower end position. If the locking element 136 is, as shown in the Figure 10bAs shown, when the guide element 150 and 152 are moved upwards, they disengage because guide element 150 leaves guide element 152 upwards. The transmission element 134 is thus released for a rotary movement initiated by the interaction of coupling sections 42 and 44. If the locking element 136 is moved even further upwards, as shown in the Figure 10c As shown, the parking brake 16 is in a braking position. The coupling section 42 is outside the coupling section 44 and interacts with a stop 146, so that a back-rotation protection is active. The free end 148 of the locking element 136 projects beyond the housing 132 far enough that the free end 148 can interact with a corresponding locking piece.

[0034] The Figure 11Figure 1 shows that the housing 132 is formed in two parts: an upper housing part 133 and a lower housing part 131. The upper housing part 133 can be made of metal, while the lower housing part 131 can be made of plastic. The lower housing part 131 can be snapped into place with the upper housing part 133. Before snapping, the transmission element 134, which has an opening adapted in cross-section to the cross-section of the actuating shaft 22, can be inserted between the housing parts 131 and 133. By snapping the housing parts 131 and 133 together, the transmission element 134 is reliably mounted in the housing 132.

[0035] The housing part 133 has screw openings 135 through which screws can be passed to fasten the housing 132 and thus the fitting assembly 124 to the wing 14.

Claims

1. Fitting assembly (24, 124) for a window (10), a door, or the like, for actuating a locking brake (16), comprising a latch element (30) that can be driven by a drive rod (30) and moved between two end positions (36, 136) as well as a transmission element (34, 134) which can be rotatably mounted on an actuating shaft (22) of the locking brake (16), wherein the latch element (36, 136) has a first coupling section (42) and the transmission element (34, 134) has a second coupling section (44), characterized in that the coupling sections (42, 44) are couplable to transmit a movement of the locking element (36, 136) to the transmission element (34, 134) and are disengaged in at least one end position of the latch element (36, 136).

2. Fitting assembly (24, 124) according to claim 1, characterized in that the coupling sections (42, 44) are each formed as toothing.

3. A hardware assembly (24, 124) according to one of the preceding claims, characterized in that one of the coupling sections (42, 44) is formed as a tooth and the other coupling section (42, 44) is formed as a tooth gap.

4. A fitting assembly (24, 124) according to one of the preceding claims, characterized in that reverse motion lock is formed on the latch element (36, 136), which prevents unintentional release of the locking brake (16).

5. Fitting assembly (24, 124) according to one of the preceding claims, characterized in that a striker (50) is provided, into which the latch element (36, 136) can engage in a locking or braking position.

6. Fitting assembly (24, 124) according to one of the preceding claims, characterized in that the latch element (36, 136) can perform a stroke of at least 15 mm, preferably at least 18 mm.

7. A fitting assembly (24, 124) according to one of the preceding claims, characterized in that a housing (32, 132) is provided in which the transmission element (34, 134) and / or the actuating shaft (22) is mounted or can be mounted.

8. Fitting assembly (24, 124) according to claim 7, characterized in that the housing (32, 132) is designed in two parts.

9. Fitting assembly (24, 124) according to claim 8, characterized in that the housing parts (131, 133) are interlockable with one another.

10. A fitting assembly (24, 124) according to one of the preceding claims, characterized in that one housing part (131, 133) is made of metal and the other housing part (131, 133) is made of plastic.

11. A hardware assembly (24, 124) according to one of the preceding claims, characterized in that a first guide element (150) is arranged on the latch element (36, 136) and a second guide element (152) on the transmission element (34, 134), which cooperate when the locking brake (16) is released.

12. A hardware assembly (24, 124) according to any one of the preceding claims, characterized in that a drive rod (30) is provided and the latch element (36, 136) is coupled to the drive rod (30) without stroke compensation.

13. A window (10), door, or the like, comprising a hardware assembly (24, 124) according to one of the preceding claims.