Window handle with locking function

Abstract

The invention relates to a window handle with a handle and a bearing rosette that can be fixed to a window sash, wherein the handle is rotatably arranged in the bearing rosette about an axis of rotation, wherein the window handle has a locking element that is slidably arranged in a locking element recess of the handle in a plane perpendicular to the axis of rotation, and the bearing rosette comprises at least one locking recess into which the locking element can be inserted, wherein the window handle comprises an actuating element designed for displacing the locking element, which is rotatably arranged in the handle about an actuating axis of rotation arranged perpendicular to this plane, and which has an actuating cam extending parallel to the actuating axis of rotation and arranged eccentrically to the actuating axis of rotation, wherein the locking element has a recess and the actuating cam is arranged to engage in the recess.wherein a push button arrangement comprising the actuating element and a push button element is arranged in the handle.

Description

[0001] The present invention relates to a window handle according to the preamble of claim 1.

[0002] Such a window handle comprises a handle and a mounting rosette that can be fixed to a window sash. The handle is rotatable around a pivot axis within the mounting rosette. The window handle has a locking element that can be moved, and the mounting rosette has at least one locking recess into which the locking element can be inserted.

[0003] When the locking element is inserted into the locking recess of the bearing rosette, the window handle cannot be rotated relative to the bearing rosette. Since the bearing rosette is fixed to the window sash in a rotationally fixed manner when using such a window handle, the window handle cannot be rotated when the locking element is positioned in the locking recess. The window is then secured against easy operation.

[0004] Lockable window handles are known in which the locking element is arranged in a locking element recess in the handle. The locking element is slidable in a plane perpendicular to the handle's axis of rotation. The window handle includes an actuating element designed to move the locking element, which is rotatably mounted in the handle about an actuating axis of rotation perpendicular to this plane. An actuating cam is arranged at one end of the actuating element, extending parallel to the actuating axis of rotation and positioned eccentrically to it. The locking element has a recess in which the actuating cam is located. Rotating the actuating element moves the actuating cam.Since this is arranged eccentrically to the axis of rotation, the actuating cam engaging the recess of the locking element displaces the locking element within the locking element recess of the handle. The locking element is moved in a plane perpendicular to the axis of rotation. A locking element located in the locking recess of the bearing rosette can thus be moved out of the locking recess by rotating the actuating element. A locking element not located in a locking recess of the bearing rosette can be inserted into the locking recess by rotating the actuating element, provided that the handle is oriented such that the locking element or the locking element recess of the handle, on the one hand, and the locking recess of the bearing rosette, on the other hand, are opposite each other. Such a window handle can be manufactured to be particularly slim and space-saving.These types of window handles are particularly well-suited for use in replicas of historical window handles. In particular, such a window handle with a lever handle designed as a window olive can be easily and attractively styled.

[0005] These previously known lockable window handles feature an operating element formed by a locking cylinder. This allows the window fitted with the handle to be locked. This provides a high degree of protection against incorrect operation and attempted break-ins. However, to operate such a window handle, the user must always carry the key that matches the locking cylinder.

[0006] The object of the present invention is to provide a corresponding window handle that is easier to operate, but still offers protection against incorrect operation, in particular operation by small children, as well as against attempted break-ins, especially also by manipulation of the window mechanism from the outside.

[0007] According to the invention, the problem is solved by arranging a push-button assembly comprising an actuating element and a push-button element in the handle. The actuating element and the push-button element are movable relative to each other. The push-button element is displaceable parallel to the actuating axis of rotation and guided circumferentially about the actuating axis of rotation in the handle. The actuating element and the push-button element are connected via a control arrangement that controls the movement of the actuating element and the push-button element relative to each other. The control arrangement is designed such that it translates a movement of the push-button element parallel to the actuating axis of rotation into a rotational movement of the actuating element and vice versa.With this type of push-button arrangement, by shifting the push-button element parallel to the operating axis (i.e., by pressing the push-button element), the operating element is rotated and the locking element is moved within the locking element recess. This provides a window handle that offers a degree of protection against incorrect operation or attempted break-ins, but without the need for a key, and is therefore easier to use.

[0008] To rotate the handle when it is in a position where the locking element is engaged in one of the locking recesses of the bearing rosette, the push button element of the push button assembly must first be pressed. This secures the window handle against unauthorized operation, for example, during a break-in attempt or by children.

[0009] Such a push-button assembly can be designed to be easily interchangeable with the locking cylinder used in previously known window handles. The handle with the locking element and the bearing rosette can then remain unchanged. Such a window handle can be obtained particularly easily by reusing these existing components.

[0010] Preferably, the axis of rotation and the axis of actuation are coaxial. In a handle designed as a window handle, the push-button assembly can be positioned centrally within the handle. The handle is designed to have a receptacle for a drive element, in particular a square spindle, which is arranged coaxially with a receptacle for the push-button assembly. The window handle can be connected to a window mechanism via this connecting element.

[0011] A window handle designed as a window olive can easily be designed in such a way that the requirements of monument protection for replicas of historical window handles can be met.

[0012] Preferably, the locking recess in the bearing rosette is arranged radially to the axis of rotation within the bearing rosette. The locking element can be easily inserted into a locking recess arranged radially to the axis of rotation in the bearing rosette. The window handle is particularly reliable.

[0013] Preferably, the bearing rosette has four locking recesses evenly distributed around the axis of rotation. All these locking recesses are radially oriented to the axis of rotation, so that the slidably arranged locking element can be easily inserted into any one of the locking recesses. The use of four locking recesses evenly distributed around the axis of rotation allows the handle to be locked in place after each 90-degree rotation by means of the locking element inserted into one of the locking recesses. Such a 90-degree indexing is particularly advantageous for tilt-and-turn windows, where the handle can be moved between an open position, a tilt position, and a closed position.

[0014] Preferably, the actuating cam has a round cross-section in a section perpendicular to the actuating axis of rotation. An actuating cam with a round cross-section allows the locking element to move with a comparatively smooth and defined motion when the actuating element is rotated. This improves the operation of the window handle.

[0015] Preferably, the control arrangement is formed by a guide track and a guide element arranged within the guide track. The guide track can be formed, in particular, within the push button element, and the guide element can be arranged on the actuating element. The guide track is preferably arranged following a section of a helical path. When the push button element is pressed, the guide element is moved within the guide track such that the actuating element is rotated. Conversely, rotation of the actuating element causes the push button element to be moved parallel to the axis of rotation of the actuating element. The control arrangement can thus be implemented particularly simply.

[0016] Preferably, the push-button element has a guide pin, and the handle is provided with a guide recess in which the guide pin is arranged. The guide recess is arranged, in particular, parallel to the axis of actuation. This allows the push-button element to be easily displaceable parallel to the axis of actuation and guided circumferentially around the axis of actuation within the handle. With a guide recess parallel to the axis of actuation, the push-button element is rotationally fixed relative to the handle. Such a window handle is particularly easy to manufacture.

[0017] Preferably, the push-button assembly includes a spring element that exerts a force on the push-button element and / or the actuating element, moving the push-button element and the actuating element away from each other. Such a spring element causes the push-button element to be pressed against the force of the spring element for actuation. When the push-button is released, the spring element attempts to return the push-button element to its initial position.

[0018] This shifts the push button element parallel to the actuating axis. The actuating element is then rotated around this axis by the control mechanism. However, rotation of the actuating element is only possible if the locking element can be engaged in one of the locking recesses of the bearing rosette.

[0019] As a result, with this type of window handle, the push button can be pressed and the handle rotated. After the handle has been rotated slightly, so that the locking element and the locking element recess are no longer aligned, the movement of the locking element is limited by the bearing rosette. Since the actuating element and the push button element are connected via the control assembly, the push button element remains in the depressed position until the handle has been rotated far enough that the locking element is aligned with the same or another locking recess of the bearing rosette. In this position, the spring element causes the push button element and the actuating element to be forced apart, the actuating element to be rotated around the actuating axis, and the locking element to be inserted into the locking recess of the bearing rosette.The push button returns to its starting position. The handle is secured against further twisting. To prevent further twisting, the push button must first be pressed again.

[0020] Preferably, the push button element has a hollow cylindrical section and the actuating element has a cylindrical section, with the actuating element having its cylindrical section arranged within the hollow cylindrical section of the push button element. The push button element and the actuating element are arranged coaxially with the actuating axis of rotation, respectively, with their cylindrical and hollow cylindrical sections aligned. This creates a compact push button assembly in a simple manner. Such a push button assembly can be easily designed to replace the locking cylinder used in previously known window handles without any modifications to the handle, the bearing rosette, or the locking element. The window handle can thus be made particularly simple.

[0021] The spring element is particularly preferably arranged in the hollow cylindrical section. This arrangement enables a particularly compact push-button assembly. Simultaneously, the spring element, which is preferably designed as a coil spring, can be easily designed and arranged to exert a force on the push-button element and the actuating element, moving them apart. This also enables a compact push-button assembly. Such a push-button assembly can be easily designed to replace the locking cylinder used in previously known window handles without any modifications to the handle, the bearing rosette, or the locking element. The window handle can thus be made particularly simple.

[0022] Further advantages and details of the invention can be found in the following description of the figures, which include exemplary embodiments of the invention. The figures schematically illustrate: Fig. 1 a window handle according to the invention in a side view; Fig. 2 a cross-section through the window handle according to Fig. 1 in a plane containing the axis of rotation; Fig. 3 a cross-section through the window handle according to Fig. 1 in the area of ​​the locking element; Fig. 4. the window handle according to Fig. 1 in an exploded view; Fig. 5 the exploded view according to Fig. 4 in a view obliquely from above; Fig. 6 a push button arrangement with the locking element; Fig. 7 to Fig. 9 the snap fastener arrangement according to Fig. 6 in different views, partially cut out with the push button element.

[0023] Identical or similarly functioning parts are provided with identical reference numerals, where appropriate. Individual technical features of the embodiments described below can be combined with the features of claim 1 and the features of individual embodiments described above to form articles according to the invention.

[0024] Fig. Figure 1 shows a window handle 2 with a handle 4 and a bearing rosette 6 that can be fixed to a window sash. The handle 4 is rotatable about a pivot axis 8 in the bearing rosette 6. This is also particularly evident in the sectional view according to Figure 1. Fig. 3 clearly visible. The window handle 2 has a locking element 10 which can be inserted into a locking recess 12 of the bearing rosette.

[0025] In the illustrated embodiment, the locking element 10 is operated by a push-button assembly 16. This push-button assembly 16 comprises a push-button element 18 and an actuating element 20. The actuating element 20 is rotatable about an actuating axis of rotation, which in the illustrated embodiment coincides with the axis of rotation 8. An actuating cam 22 is arranged at one end of the actuating element 20. This cam is arranged eccentrically to the actuating axis of rotation, which coincides with the axis of rotation 8. The actuating cam 22 engages in a recess 24 of the locking element 10. By rotating the actuating element 20, the actuating cam 22 is rotated. In doing so, the actuating cam, which engages in the recess 24 of the locking element 10, displaces the locking element 10.

[0026] This is in Fig. 2 clearly visible, which show a cross-section through the window handle 2 after Fig. Figure 1 shows the push button element 18 in a plane encompassing the axis of rotation 8. The push button element 18 is provided with a guide pin 36, which is slidably arranged in a guide recess 38 of the handle 4. This ensures that the push button element 18 can be displaced translationally and guided around the actuating axis of rotation relative to the handle 4. In the illustrated embodiment, this guide recess 38 is designed such that the push button element 18 cannot be rotated relative to the handle 4.

[0027] Fig. Figure 3 shows a cross-section through the window handle. Fig. 1 in the area of ​​the locking element 10. This can be seen in Fig. 3, that the bearing rosette 6 has four locking recesses 12, which are evenly distributed around the circumference of the bearing rosette 6. This results in a 90-degree indexing. In Fig. 3 The locking element 10 is arranged in one of the locking recesses 12. The locking element 10 is slidably arranged in a locking element recess 14 of the handle 4.

[0028] The push button assembly 16 is shown in the exploded views according to Fig. 4 and Fig. 5 is particularly easy to see. The handle 4 has a receptacle for the push-button assembly 16. On the opposite side, the handle 4 has a receptacle for a drive element, in this case designed as a square spindle. The window handle 2, or the handle 4 of the window handle 2, can be connected to a window mechanism (not shown) via this drive element. The push-button assembly 16 and the drive element are arranged coaxially with the axis of rotation 8.

[0029] Fig. 6 to Fig.Figure 9 shows the push-button assembly 16 with the locking element 10 in detail from various views. The following explains how the actuating element 20 can be rotated via the push-button assembly 16. In the illustrated embodiment, the push-button element 18 has a hollow cylindrical section 26. The actuating element 20 has a cylindrical section 28. The actuating element 20 is inserted into the hollow cylindrical section 26 of the push-button element 18 with its cylindrical section 28.

[0030] The push button element 18 and the actuating element 20 are movable relative to each other. This mobility includes at least a translation in the direction of the axis of rotation 8. In the illustrated embodiment, the mobility of the push button element 18 and the actuating element 20 relative to each other includes a rotation about the actuating axis of rotation, which coincides with the axis of rotation 8. This movement is relative to the handle 4.

[0031] The push button element 18 and the actuating element 20 are connected to each other via a control arrangement 30, comprising a guide track 32 and a guide element 34 arranged in the guide track 32. In the illustrated embodiment, the guide track 32 is arranged helically in the hollow cylindrical section 26 of the push button element 18. A guide element 34, which is connected to the actuating element 20, engages in this guide track 32. When the push button element 18 is pressed, it is displaced translationally in the direction of the actuating element 20. Simultaneously, the guide element 34, guided in the guide track 32, rotates the actuating element 20 about the actuating axis of rotation, which coincides with the axis of rotation 8. This rotation of the actuating element 20 causes the actuating cam 22, which is arranged eccentrically to the actuating axis of rotation or axis of rotation 8, to rotate.The actuating cam 22 arranged in the recess 24 of the locking element 10 displaces the locking element 10 in the locking recess 12.

[0032] In the illustrated embodiment, pressing the push button element 18 causes the locking element 10 to move out of the locking recess 12 of the bearing rosette 6. By pressing the push button element 18, the handle 4 can then be rotated relative to the bearing rosette 6.

[0033] The push button element 18 has a guide pin 36 on its outer surface, which is guided in a guide recess 38 in the handle 4. This prevents the control arrangement 30 from translating a movement of the push button element 18 into a rotation and ensures that the push button element 18 can only be moved translationally. The control arrangement 30 then always causes a rotation of the actuating element 20.

[0034] The push-button assembly 16 further comprises a spring element 40. In the illustrated embodiment, this spring element is arranged in the hollow cylindrical section 26 and is designed as a helical spring. When the push-button element 18 is pressed, the spring element 40 is compressed. This exerts a force on the push-button element 18 and the actuating element 20, causing them to move apart. When the push-button element 18 is not actuated, the spring element 40 pushes it back into its initial position. The control arrangement 30 rotates the actuating element 20 in the opposite direction.

[0035] Since the actuating element 20 with the actuating cam 22 is arranged in the recess 24 of the locking element 10, such a rotation of the actuating element 20 is only possible if the handle 4 is aligned so that the locking element 10 or the locking element recess 14 is aligned with one of the locking recesses 12 of the bearing rosette 6.

[0036] An operator of the window handle 2 can therefore press in the push button element 18 of the push button assembly 16 and unlock the handle 4. After the handle 4 has been rotated to the point that the locking element 10 and the locking recess 12 of the bearing rosette 6 are no longer aligned, the operator can release the push button element 18. The handle 4 can then be rotated until the locking element 10 is aligned with another locking recess 12 of the bearing rosette 6. In this position, the locking element 10 is then inserted into the locking recess 12, while the spring element 40 moves the push button element 18 back to its initial position.

[0037] In this way, a particularly easy-to-use window handle 2 can be obtained.

Claims

[1] Window handle (2) with a handle (4) and a bearing rosette (6) that can be fixed to a window sash, wherein the handle (4) is rotatably arranged in the bearing rosette (6) about an axis of rotation (8), wherein the window handle (2) has a locking element (10) that is slidably arranged in a locking element recess (12) of the handle (4) in a plane oriented perpendicular to the axis of rotation (8), and the bearing rosette (6) comprises at least one locking recess (12) into which the locking element (10) can be inserted, wherein the window handle (2) comprises an actuating element (20) designed for displacing the locking element (10), which is rotatably arranged in the handle (4) about an actuating axis of rotation arranged perpendicular to this plane, and which has an actuating cam (22) extending parallel to the actuating axis of rotation and arranged eccentrically to the actuating axis of rotation,wherein the locking element (10) has a recess (24) and the actuating cam (22) is arranged to engage in the recess (24), characterized by , that a push button assembly (16) comprising the actuating element (20) and a push button element (18) is arranged in the handle, wherein the push button element (18) and the actuating element (20) are movable relative to each other, wherein the push button element (18) is mounted in the handle (4) so ​​as to be displaceable parallel to the actuating axis of rotation and guided circumferentially around the actuating axis of rotation, and the actuating element (4) and the push button element (18) are connected via a control arrangement (30) that controls the movement of the actuating element (20) and the push button element (18) relative to each other. [2] Window handle according to one of the preceding claims, characterized by , that the control arrangement (30) comprises a guide cam (32) and a guide element (34) arranged in the guide cam (2). [3] Window handle according to one of the preceding claims, characterized by , that the push button element (18) has a guide pin (36) and the handle (4) has a guide recess (38) in which the guide pin (36) is arranged. [4] Window handle according to one of the preceding claims, characterized by , that the push button arrangement (16) comprises a spring element (40) which applies a force to the push button element (18) and / or the actuating element (20) which moves the push button element (18) and the actuating element (20) away from each other. [5] Window handle according to one of the preceding claims, characterized by , that the push button element (18) has a hollow cylindrical section (26) and the actuating element (20) has a cylindrical section (28), wherein the actuating element (20) with the cylindrical section (28) is arranged in the hollow cylindrical section (26) of the push button element (18). [6] Window handle according to claim 4 and claim 5, characterized by , that the spring element (40) is arranged in the hollow cylindrical section (28).

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