ES2892294T3 - Lid fitting for pivoting fixing of a lid to a furniture body - Google Patents

Abstract

Lid fitting (1) for pivotally fixing a lid (11) to a furniture body (6), in which the lid fitting (1) has the following: an adjustment element (8) for moving the lid (11), a pivot arm (7), which is pivotally connected to the adjusting element (8), with a housing (10), at least one spring element (14), which is arranged to be biased with a force of pretensioned between the adjustment element (8) and a counter-support (15) for the application of force to the adjustment element (8), and an adjustment element (19) with a thread (20) engaging with a counter-thread (21) of the counter support (15), in which the counter support (15) can be adjusted by rotating the adjustment element (19) about a longitudinal axis (L) of the pivoting arm (7) in the direction of the longitudinal axis (L) and comes into contact with a stop surface (28) upon reaching at least one final position, characterized in that the adjustment element (19) is connected in acc ionation to a control element (23) via a torque limiting arrangement (36), that the counter bearing (15) can be adjusted by turning the adjustment element (19) in a first direction of rotation in the direction of a first end position, which is in contact with the stop surface (28) when the stop (15) is reached, and can be adjusted by turning the adjusting element (19) in a second direction of rotation in the direction of a second end position, in which the stop surface (28) is arranged on the adjusting element (19) or on the housing (10), that when the control element (23) is rotated in the first direction of rotation a first transmissible torque can be transmitted from the torque limiting arrangement (36) to the adjusting element (19), which when the control element (23) is rotated in the second direction of rotation can be transmitted a second torque transmittable from the arrangement of torque limitation (36) to the regulating element (19), and that the first torque is less than the second torque.

Description

DESCRIPTION

Lid fitting for pivoting fixing of a lid to a furniture body

The invention relates to a lid fitting for pivotally fastening a lid to a furniture body, in which the lid fitting has an adjustment element for moving the lid, a pivot arm, which is pivotally connected to the adjusting element, at least one spring element, which is arranged under tension with a preloading force between the adjusting element and a counter-bearing for the application of force to the adjusting element, and an adjusting element with a thread that engages with a counter-bearing counter-thread, in which the counter-bearing can be adjusted by turning the adjusting element about a longitudinal axis of the pivot arm in the direction of the longitudinal axis and comes into contact with a stop surface upon reaching at least one end position.

Such a lid fitting is known from AT 513387 B1, which has an actuator for moving a movable piece of furniture. The adjustment drive comprises at least one movably mounted actuator for moving the movable furniture part, a spring device for applying force to the actuator and an adjustment device by means of which a force of the spring device acting on it can be adjusted. the actuator. The adjusting device comprises an adjusting screw that has a thread, on which the force of the spring device acting on the actuator can be adjusted by means of a screw nut that is adjustablely mounted along the bagel. In order to prevent the screw nut from jamming with the screw head when the adjusting screw is turned upon reaching an end position, AT 513387 B1 proposes that the adjusting screw has a non-threaded area at the end of the thread which is directed towards the head of the adjusting screw and at least one spring element is provided, through which the screw nut can be acted upon in at least one end region of the adjusting screw with a force directed away from this end region . An adjustment drive for moving a movable piece of furniture is known from WO 2015/027251 A1. The adjustment drive comprises at least one movably mounted actuator for moving the movable furniture part, a spring device for applying force to the actuator and an adjustment device by means of which a force of the spring device acting on it can be adjusted. the actuator. The adjusting device has an adjusting screw with a threaded section and a screw nut which is adjustablely mounted between two end positions and engages with the threaded section. The force of the spring device acting on the actuator can be adjusted by adjusting the screw nut along the threaded section. At one end of the thread facing the set screw head, the set screw has a threadless end region, so that jamming between the screw nut and a set screw head is prevented. In addition, a spring element is provided, by means of which the screw nut can be actuated away from the adjusting screw head, so that the spring element can enter the thread again after being transferred to the area. Threadless.

DE 199 18823 C1 discloses a lid fitting in the form of a lid positioner for holding a lid or a flap of a piece of furniture. The cap positioner serves to hold the cap in an open position. For this, the cap positioner has a first arm and a second arm. The second arm is pivotally connected to the first arm about a pivot axis between an open position and a closed position. The spring means applies force to the second arm in the direction of the open position. Therefore, by the second arm a force is generated on the lid in the direction of the open position, so that the lid is held at least in the open position. Between an intermediate position, which is between the closed position and the open position of the lid, and the open position, the force is balanced in such a way that the lid automatically moves to the open position or is held in any pivot position . In order to adjust the force that is exerted by the spring means on the second arm and therefore on the lid, the lid positioner has a spring tensioner against which the spring means bear axially. The spring tensioner has guide pins on which the spring means in the form of coil springs are placed. The spring tensioner is supported on the inside against a cap locator housing via a screw that is threaded into the spring tensioner. The screw can be adjusted with a screwdriver through a hole in the housing, so that the spring tensioner can move axially against the spring force of the coil springs and pre-tension the coil springs.

The object of the present invention is to provide a cover fitting that prevents jamming of the counter support and is constructed in a simple way.

The object is achieved by a cover fitting according to claim 1. Exemplary embodiments are derived from the dependent claims.

If the counter bearing comes into contact with the stop in the at least one end position, the counter bearing is acted on, on the one hand, by the torque acting on the adjusting element and, on the other hand, by a clamping force from the drive gear. the thread of the adjustment element in the counter-thread of the counter-support, which is proportional to the torque acting on the adjustment element. By both factors, tensile force and torque can bind the bearing, especially with the stopper.

If the control element is rotated by the fitter or a torque is applied, the torque limiting arrangement limits the maximum torque acting on the adjusting element, and jamming of the counter bearing as well as a failure can be prevented. overloading of the adjustment element or of the counter-support. Furthermore, the fitter can register by sensors a slippage of the torque limiting coupling when a maximum torque transmittable by the torque limiting arrangement is exceeded. The mounter can therefore feel that the at least one end position has been reached.

By selecting the transmissible torques described above depending on the direction of rotation, it can be ensured that, when the control element is rotated in the first direction of rotation, jamming of the counter bearing is prevented by the action of the clamping force. At the same time, when the control element is rotated in the second direction of rotation, a sufficiently large torque can be transmitted to the adjusting element, so that the counter bearing can be released from the first end position and the pretension force can be adjusted. of the at least one spring element.

In particular, when the control member is rotated in the second direction of rotation, the adjusting member and the control member may be rotatably connected via the torque limiting arrangement.

In one possible embodiment of the cover fitting, the torque limiting device can have a first force transmission surface on the adjusting element and a first force transmission surface on the control element, which are in contact each other and are respectively arranged inclined with respect to a radial plane with respect to the longitudinal axis. Due to the inclination of the first force transmission surfaces with respect to the radial plane with respect to the longitudinal axis, the first force transmission surfaces form a ramp mechanism in the axial direction. The first transmittable torque essentially results from the inclination of the first force transmission surfaces, the coefficient of friction between the two first force transmission surfaces and the prestressing force acting on the counter bearing. If the counter bearing comes into contact with the stop in the first end position, starting from an initial position when the first transmissible torque is exceeded, the adjusting element together with the counter bearing moves axially away from the control element, i.e. up the ramp, against the prestressing force of the at least one spring element. In this case, the control element is rotated with respect to the regulation element.

The first force transmission surfaces of the adjusting element and of the control element can be arranged in particular circumferentially about the longitudinal axis. It is possible for the first force transmission surfaces of the adjusting element and of the control element to be configured as helical ramp surfaces in each case. The first force transmission surfaces of the regulating element and of the control element can respectively follow a helical line extending, for example, over 340 degrees, 360 degrees, 380 degrees or multiples of 360 degrees. In this connection, the helical line can be oriented in the opposite direction to the thread of the adjusting element or the counter-thread of the counter bearing. In particular, the first force transmission surface of the adjustment element can be designed as the first thread flank of a transmission thread and the first force transmission surface of the control element is designed as the first thread flank of a counter thread. transmission, in which the transmission thread and the transmission counter-thread mesh with each other.

After the control element has rotated the respective angular amount of the helical line with respect to the adjusting element in case of contact of the counter bearing with the stop, the adjusting element is released axially together with the counter bearing, so that the element The adjusting element is pushed back axially together with the counter bearing by the preloading force of the at least one spring element, whereby the first force-transmitting surfaces of the adjusting element and the control element come into contact with one another again. When the control element is rotated further with respect to the regulating element or when a torque greater than the first transmissible torque is applied to the control element, the sequence described above is repeated until the acting torque on the control element is less than the first transmittable torque. The thus resulting cyclic axial movement of the adjusting element together with the counter-bearing can be called ratcheting.

The first force transmission surfaces of the adjusting element and of the control element may be inclined at an angle a to the radial plane relative to the longitudinal axis, respectively. In order to adjust the torque to be transmitted, the angle α of the first force transmission surfaces can be selected to be constant over the extent in the circumferential direction of the first force transmission surfaces. In this connection, the angle a can be selected larger by virtue of the magnitude than the pitch angle of the thread of the adjusting element, respectively the counter-thread of the counter bearing. Furthermore, the angle a can be oriented in the opposite direction to the pitch of the thread of the adjustment element. It is also conceivable that the angle a is designed variable over the extension in the circumferential direction of the first force transmission surfaces. Thus, a defined characteristic of the torque to be transmitted is produced depending on the angle of rotation between the regulating element and the control element.

The torque limiting arrangement can have a second force transmission surface on the adjusting element and a second force transmission surface on the control element, each of which is arranged inclined to a plane radial to the longitudinal axis. When the control element is rotated in the second direction of rotation, the second force transmission surfaces of the adjusting element and the control element can be in contact with each other. The second force transmission surfaces can act as locking surfaces, so that when the control element is rotated in the second direction, the control element and the regulation element are integrally connected in rotation through the arrangement. torque limitation. In particular, the second force transmission surface of the adjusting element can be designed as a second thread flank of the drive thread and the second force transmission surface of the control element as a second thread flank of the drive counterthread. .

The cover fitting has a housing, in which the at least one spring element is arranged and in which the counter bearing is guided axially in a rotatable manner. The adjusting element can be rotatably mounted on the housing about the longitudinal axis. The adjusting element can also be mounted on the housing so that it can be axially displaceable along the longitudinal axis.

The adjusting element can have a bearing section, which is arranged in an axially displaceable manner in a housing opening designed to complement the bearing section. Furthermore, the adjusting element can have a threaded shank with the thread in the form of an external thread, and the counter thread of the counter bearing can be designed as an internal thread.

The control element can have a tooth system, in particular an external tooth system, which meshes with a tooth system of a drive element. The drive element can be rotatably arranged about a drive axis of rotation, whereby the axis of rotation of the drive intersects the longitudinal axis or intersects it at a distance. The control element and the drive element thus form an angle gear. The angular gear can be configured in various known forms, such as a worm gear, a worm gear pair or a bevel gear pair. In addition, a multiplication between the drive element and the control element can be provided, for example, to facilitate the rotation of the control element.

An exemplary preferred embodiment is explained in more detail below by means of the drawings. here show

FIG. 1 shows a side view of a lid fitting according to the invention in a piece of furniture in the open position, in which the housing is shown partially transparent for the visibility of the spring element;

FIG. 2 a perspective view of the lid fitting according to FIG. 1, in which the housing is indicated only in broken lines;

FIG. 3 a perspective view of an adjustment device with counter-support, adjustment element, control element and drive element of the lid fitting according to FIG. 1;

Figure 4 a longitudinal section of the adjusting device according to Figure 3 with the counter bearing in the first end position; and

Figure 5 a longitudinal section of the adjusting device according to figure 3 with the counter bearing in an intermediate position during the ratcheting process.

Figures 1 to 5 show an embodiment of a lid fitting 1 according to the invention for pivotally fastening a lid 11 to a cabinet body 6 of a piece of furniture in different views and are described together below.

The lid fitting 1 has a base element 2 which is fixed to a furniture body 6 via a fixing screw 3 and via fixing pins, not shown, which engage in mounting holes 4 of a side wall 5. The base element 2 is therefore fixed to the side wall 5 of the furniture body 6.

A pivot arm 7 is attached to the base element 2 pivotally about a first body axis K1. At an end remote from the first body axis K1, the pivot arm 7 is connected to a pivot arm-side connection element 8, which may also be referred to as an adjustment element, pivotally about a first cap axis. D1. The first body axis K1 and the first lid axis D1 are spaced apart and arranged parallel to each other.

The connecting element on the pivot arm side 8 is connected to a cabinet lid 11 through a connection arrangement 9. In order to guarantee a defined sequence of movements of the lid 11 with respect to the cabinet body 6, in In this embodiment, the lid fitting 1 has a control arm 12 which is pivotally connected to the base element 2 about a second body axis K2 and which is pivotally connected to the connecting element on the side of the arm. pivoting 8 about a second lid axis D2. The second body axis K2 and the second cap axis D2 are spaced apart and parallel to each other, just as they are spaced apart and parallel to the first body axis K1 and the first cap axis D1.

Thus, the pivot arm 7 and the control arm 12, which are coupled to each other via the base element 2 on the one hand and via the pivot arm side connecting element 8 on the other hand, form a chain. four-jointed. This specifies a defined sequence of movements of the cover 11.

The lid 11 can be moved relative to the furniture body 6 by means of the lid fitting 1 between an open position shown in FIG. 1 and a closed position, whereby the lid 11 closes an opening 13 of the furniture body 6 in the closed position.

The swivel arm 7 has a housing 10, in which a spring element in the form of a helical spring 14 is arranged, which is supported on the one hand near the first body axis K1 against a bearing 15 and on the other hand near the first lid axis d 1, through a pressing element 16 against the pivot arm side connecting element 8. Since the pivot arm side connecting element 8 is connected to the cap 11 through connection arrangement 9, the pivot arm side connection element 8 functions as an adjustment element for moving the cover 11.

In the exemplary embodiment shown in the figures, force is applied to the pressure element 16 in the direction of the connecting element on the side of the pivot arm 8, in which the pressure element 16 has a roller 17 with which the pressure element 16 is supported against a fitting contour 18 of the connecting element on the side of pivot arm 8.

The adjustment contour 18 has a variable distance from the first lid axis D1 in the circumferential direction about the first lid axis D1. In this case, the adjusting contour 18 is designed in such a way that a torque is generated by the pressure element 16 over the larger pivot path of the cover 11 or the connecting element on the pivot arm side 8, which applies force on the cover 11 in the direction of the open position. In an area between an intermediate position, which is between the open position and the closed position of the cover 11, and the closed position, the adjusting contour 18 is shaped in such a way that force is applied to the cover 11 in the opposite direction. from the closed position.

The helical spring 14 is held between the counter bearing 15 and the adjustment contour 18 on the connecting element on the pivot arm side 8. The pretension of the helical spring 14, with which it is held, can be adjusted to adapt the mounting hardware. lid 1 to different lid weights. Depending on the weight of the lid 11, the pretension can be adjusted, i.e. with a higher lid weight, the pretension of the helical spring 14 is increased, so that a force is applied to the roller 17 of the pressure element 16. against the adjusting contour 18, whereby a greater torque acts on the connecting element on the pivot arm side 8, in particular in the direction of the open position of the lid 11. Correspondingly, it can be adjusted a lower pretension when the weight of the lid 11 is lower.

In order to adjust the pretension of the helical spring 14, the counter support 15 can be displaced in the direction of action of the force of the helical spring 14 along a longitudinal axis L of the pivot arm 7. For this, the counter support 15 has a section rectangular cross. The housing 10 of the pivot arm 7 likewise has a rectangular cross-section on the inside, on which the counter-bearing 15 is guided in an axially displaceable manner along the longitudinal axis L in a rotation-safe manner.

For adjusting the counter bearing 15, an adjusting element 19 with a thread 20 is provided, which is screwed into a counter thread 21 of the counter bearing 15, as can be seen in FIGS. 4 and 5. By rotating the adjusting element 19 about the axis longitudinal axis L, the counter bearing 15 is adjusted along the thread 20 in the direction of the longitudinal axis L. The adjusting element 19 is mounted in an axially displaceable and rotatable manner in an opening 34 of the housing 10 with a cylindrical bearing section 33 The adjustment element 19 is arranged coaxially to the longitudinal axis L.

The adjusting element 19 has a threaded stem 22, which has the thread 20 in the form of an external thread. The thread 20 is screwed into the counter thread 21, which is formed as an internal thread, of the counter bearing 15. Alternatively, the counter thread 21 can also be provided on a separate threaded element, whereby the thread element connected to the counter bearing or supported against this.

The cover fitting further comprises a control element 23. The control element 23 has a toothing 24 which engages toothingly with a toothing 25 of a drive element 26. The drive element 26 can rotate about a rotational axis of drive D, whereby the drive axis of rotation D crosses the longitudinal axis L at a distance. For this, the control element 23 has an opening 37 that is made complementary to the bearing section 33 of the adjustment element and the control element 23 is pushed with the opening 37 onto the bearing section 33.

By rotating the drive element 26 about the drive rotational axis D, the control element 23 is thus rotated about the longitudinal axis L. The drive element 26 is designed as a worm wheel, in which the toothing 25 of the drive element 26 is designed in a helical shape. The drive element 26 is mounted in the housing 10 in an axially non-displaceable and rotatable manner. In order to be able to turn the actuating element 26 with a screwdriver, the actuating element 26 has at one end engagement means for a tool 27 in the form of a cross groove. Of course, other means of engagement are also conceivable, such as a simple slot or an internal hexagon profile. In the present exemplary embodiment, by diverting the rotational movement about the drive rotational axis D to the rotary movement about the longitudinal axis L, the accessibility for the fitter to change the pretension of the helical spring 14 is improved. The drive element 26 is easily accessible to the fitter from the front through the opening 13 in the furniture body 6. In principle, however, embodiments in which the drive element 26 is dispensed with are also possible.

In the exemplary embodiment shown, the counter bearing 15 can be moved downwards in a first direction of rotation when the control element 23 is rotated, that is, in the direction of the spring force of the coil spring 14, until reaching a first end position, in which the helical spring 14 has a minimum pretension. In figure 4, the counter-support is represented in this first final position. In this case, the counter bearing 15 rests with a leading surface 29 on a stop surface 28 of the adjusting element 19. It is also conceivable that another element has the stop surface. For example, the housing 10 of the pivot arm 7 can have the stop surface.

By turning the control element 23 in a second direction of rotation, the counter bearing 15 can be moved upwards in the exemplary embodiment shown, i.e. against the spring force direction of the coil spring 14 and away from the first position. end, until a second end position is reached, in which the helical spring 14 presents a maximum pretension.

The terms "lower" and "upper" refer to the installation location of the lid fitting 1 shown in figures 1 and 2. In principle, the lid fitting 1 can also be mounted on the cabinet body 6 in other locations.

In the first end position, a force is applied to the counter bearing 15 by the spring force of the helical spring 14 against the stop surface 28 of the adjustment element 19. In addition, a tensioning force acts on the counter bearing 15 from the element adjuster 19 through the thread 20 and further presses it against the stop surface 28. This can lead to the counter bearing 15 jamming, so that it is difficult to separate the counter bearing 15 from the first end position against the spring force of the helical spring 14 or even avoided. Furthermore, there is a risk that too great a torque will act on the components when the first end position is reached and one of these components will be damaged.

The tensioning force acting on the counter bearing 15 from the regulating element 19 through the thread 20 is proportional to the torque acting from the control element 23 on the regulating element 19. The control element 23 and the element 19 are drive-connected via a torque limiting arrangement 36, which may also be referred to as a torque limiting coupling. In this regard, the torque limiting arrangement 36 limits the torque transmittable by the control element 23 or by the drive element 26 to the regulating element 19 depending on the direction of rotation of the control element 23. By means of the torque limiting arrangement 36, the torque acting from the control element 23 on the adjusting element 19 is limited to a first transmittable torque when the control element 23 is rotated in the first direction. direction of rotation and to a second transmittable torque when the control element 23 is rotated in the second direction of rotation. Thus, the clamping force acting between the counter bearing 15 and the stop surface 28 is also limited and jamming of the counter bearing is prevented.

For this, the torque limiting arrangement 36 comprises in the present case a first force transmission surface 31 of the adjusting element 19 and a first force transmission surface 32 of the control element 23, which are in mutual contact. . In this connection, the first force transmission surfaces 31, 32 are embodied as complementary ramp surfaces, which extend helically in the circumferential direction about a parallel to the longitudinal axis L of the housing 10. In the present case, the first force transmission surfaces 31, 32 extend 360° around the longitudinal axis L of the housing 10. However, it is also conceivable that the first force transmission surfaces 31, 32 extend, for example, 340° or 380° in the circumferential direction. The first torque transmittable by the torque limiting arrangement 36 in the first direction of rotation is determined, among other things, from the ramp slope of the first force transmission surfaces 31, 32, the ratios of friction between the first force transmission surfaces 31, 32 as well as the acting prestressing force of the helical spring 14. In the present case, the first force transmission surfaces 31, 32 have a constant ramp slope. However, it is also conceivable that the first force transmission surfaces 31, 32 have a variable ramp slope on the circumference, so that the first transmittable torque can be variably designed in an angle of rotation between the element regulation 19 and control element 23.

The first force transmission surface 31 of the adjusting element 19 has a start area or start position P1 and an end area or end position P2, which are connected to one another via a second force transmission surface 35. In the present case, the second force transmission surface 35 is arranged parallel to a plane through the longitudinal axis L of the casing 10 or at an angle of 90° to a radial plane relative to the longitudinal axis L, whereby that the angle results from the circumferential extension of the first force transmission surface 31. Due to the sectional representation of FIGS. 4 and 5, the initial area and the end area of the first force transmission surface 32 are covered as well as the second force transmission surface of the control element 23. The second torque transmittable by the torque limiting arrangement 36 in the second direction of rotation is determines, among other things, from the ramp slope of the second force transmission surfaces, the friction ratios between the second force transmission surfaces as well as the acting prestressing force of the helical spring 14. In the present In this case, the second force transmission surfaces are shaped complementary to one another and have a constant slope. However, analogous to the first force transmission surfaces 31, 32, the second force transmission surfaces can have a variable slope, so that the transmittable second torque can be designed variably at an angle of rotation between the regulation element 19 and the control element 23.

In the present exemplary embodiment, when the control member 23 is rotated in the first direction of rotation with a torque that is greater than the first transmittable torque, the adjusting member 19 is pushed up in the direction of rotation. ramp-shaped first force transmission surface 32 of the control element 23 from the initial zone to the end zone, so that the regulating element 19 moves axially against the prestressing force of the helical spring 14. In this case, the regulating element 19 and the control element 23 are rotated relative to each other in the circumferential direction. If the resulting angle of rotation of the adjusting element 19 relative to the control element 23 exceeds the circumferential extension of the first force transmission surface 32 of the control element 23, the adjusting element 19 is released axially. The adjustment element 19 is moved axially in the direction of the initial zone of the first force transmission surface 32 of the control element 23 by the prestressing force of the helical spring 14. The process described above is repeated whenever the adjustment element regulation 19 and the control element 23 are rotated relative to each other or the torque acting on the control element 23 is greater than the first transmittable torque, whereby the process can be called ratcheting.

When the control element 23 is rotated in the second direction of rotation, the two second force transmission surfaces come into contact with each other and, in the present case, mutually act as locking surfaces. Therefore, the control element 23 and the adjusting element 19 are positively connected to each other and the torque acting on the control element 23 can be completely transmitted to the adjusting element 19. However, it is also It is conceivable that the second force transmission surfaces form a ramp mechanism analogously to the first force transmission surfaces, so that a torque limitation and ratchet function, as described above for the first direction of rotation, they can also be implemented in the second direction of rotation.

At one end of the threaded rod 22 disposed remote from the control element 23, the latter has a threadless section 30. If the counter bearing 15 moves in the direction from the first end position to the second end position, the counter thread 21 of the counter bearing 15 It comes out of the thread 20 of the adjusting element 19. In this position, the adjusting element 19 can rotate freely with respect to the counter-bearing 15 without the counter-bearing 15 moving axially, since the counter-thread 21 disengages from the thread 20. Therefore, a jam in the upper end position is excluded.

If the adjusting element 19 is then turned in the other direction again, the counter thread 21 engages the thread 20 again, since the helical spring 14 presses the counter bearing 15 against the threaded end of the thread 20 at the transition to the threadless section 30.

reference list

1 cover fitting

2 base element

3 Fixing screw

4 mounting holes

5 side wall

6 Furniture body

7 Pivot arm

8 Connecting element on the pivot arm side

9 Connection Arrangement

10 Casing

11 Lid

12 control arm

13 Opening

14 coil spring

15 Counter Support

16 pressure element

17 roller

18 Fit Contour

19 Regulation element

20 Thread

21 Counter thread

22 Threaded shank

23 Control element

24 toothed

25 toothed

26 Drive element

27 Lead medium for a tool 28 Stop surface

29 Attack Surface

30 Threadless Section

31 First force transmission surface 32 First force transmission surface 33 Bearing section

34 opening

35 Second force transmission surface 36 Torque limiting arrangement

37 opening

L Longitudinal axis

D Drive swivel axis

K Body Axis

Claims (13)

1. Cover fitting (1) for pivotally fixing a cover (11) to a furniture body (6), in which the cover fitting (1) has the following: an adjustment element (8) to move the lid (11), a pivot arm (7), which is pivotally connected to the adjusting element (8), with a housing (10), at least one spring element (14), which is biased with a prestressing force between the element adjusting element (8) and a counter-support (15) for the application of force to the adjusting element (8), and an adjustment element (19) with a thread (20) engaging with a counter-thread (21) of the counter-support (15), in which the counter-support (15) can be adjusted by turning the adjustment element (19) about a longitudinal axis (L) of the pivoting arm (7) in the direction of the longitudinal axis (L) and comes into contact with a stop surface (28) upon reaching at least one final position, characterized by that the regulating element (19) is connected in drive to a control element (23) via a torque limiting arrangement (36), that the counter-bearing (15) can be adjusted by rotating the adjusting element (19) in a first direction of rotation in the direction of a first end position, which when the stop (15) is in contact with the stop surface (28), and can be adjusted by rotating the adjusting element (19) in a second direction of rotation in the direction of a second end position, in which the stop surface (28) is arranged on the adjusting element ( 19) or on the casing (10), that when the control element (23) is rotated in the first direction of rotation a first transmissible torque can be transmitted from the torque limiting arrangement (36) to the regulating element (19), that when the element control element (23) is rotated in the second direction of rotation, a second transmissible torque can be transmitted from the torque limiting arrangement (36) to the adjusting element (19), and that the first torque is less than the second torque. 2. Cover fitting according to claim 1, characterized by that when the control element (23) is rotated in the second direction of rotation, the adjustment element (19) and the control element (23) are integrally connected in rotation through the torque limiting arrangement twist (36). 3. Cover fitting according to one of claims 1 or 2, characterized by that the torque limiting device (36) has a first force transmission surface (31) on the adjustment element (19) and a first force transmission surface (32) on the control element (23) , which are in contact with each other and are respectively arranged inclined with respect to a radial plane with respect to the longitudinal axis (L). 4. Cover fitting according to claim 3, characterized by that the first force transmission surfaces (31, 32) of the adjusting element (19) and of the control element (23) are each configured as helical ramp surfaces. 5. Cover fitting according to claim 4, characterized by that the first force transmission surface of the adjustment element is designed as the first thread flank of a transmission thread and the first force transmission surface of the control element is designed as the first thread flank of a transmission counterthread, in which the control thread and the control counter-thread engage with each other. 6. Lid fitting according to one of claims 1 to 5, characterized by that the torque limiting arrangement (36) has a second force transmission surface (35) on the adjusting element (19) and a second force transmission surface on the control element (23), which is respectively arranged inclined with respect to a radial plane with respect to the longitudinal axis (L). 7. Lid fitting according to one of claims 1 to 6, characterized by that the at least one spring element (14) is arranged in the housing (10) and the counter bearing (15) is guided reliably in rotation axially in the housing (10). 8. Cover fitting according to claim 7, characterized by that the adjustment element (19) is housed in the casing (10) so that it rotates around the longitudinal axis (L). 9. Cover fitting according to one of claims 7 or 8, characterized by that the adjustment element (19) is mounted on the casing (10) in an axially displaceable manner along the longitudinal axis (L). 10. Lid fitting according to one of claims 1 to 9, characterized by that the adjusting element (19) has a bearing section (33), which is arranged in an axially displaceable manner in an opening (34) of the housing (10) designed to complement the bearing section (33). 11. Lid fitting according to one of claims 1 to 10, characterized by that the adjustment element (19) has a threaded rod (22) with the thread (20) in the form of an external thread and that the counter-thread (21) of the counter-support (15) is shaped as an internal thread. 12. Lid fitting according to one of claims 1 to 11, characterized by that the control element (23) has a toothing (24) which engages toothingly with a toothing (25) of a drive element (26). 13. Cover fitting according to claim 12, characterized by that the drive element (26) can be rotated about a drive rotation axis (D), in which the drive rotation axis (D) intersects the longitudinal axis (L) or crosses it in distance.