EP3244776B1 - Pivoting fitting, piece of furniture, and motor vehicle seat - Google Patents

Description

The present invention relates to a pivot fitting, in particular for furniture, with a first pivot lever which is movable relative to a second pivot lever about an axis of rotation, wherein a blocking device is provided to rotate in a blocking position, a rotational movement of the first pivot lever relative to the second pivot lever in a lock first direction of rotation and allow in an opposite second direction of rotation and a furniture and a motor vehicle with at least one corresponding pivot fitting.

The WO 2007/088128 discloses a pivot fitting in which a first tab is pivotally mounted to a second tab. About a latch mechanism, the two tabs can be locked in different angular positions, with a locking in opposite directions is possible. In the latching of the tabs relative to each other, there is the disadvantage that a fixation of the tabs relative to each other is possible only in predetermined angular positions. Especially with a fine adjustment of headrests or armrests, it is sometimes desirable to obtain a finer adjustment than via the latch mechanism. In addition, such pivotal fittings often have the problem that a rotational movement of the tabs is possible only in a predetermined angular range, according to the construction of the furniture, which limits the adjustment, and therefore increases the number of different embodiments for different angular ranges.

Motor vehicle seats with corresponding pivot fittings are well known.

The WO 2013 / 164921A1 discloses a pivot fitting according to the preamble of claim 1.

It is therefore an object of the present invention to provide a pivot fitting in which a first pivot lever and a second pivot lever have a more flexible adjustment.

This object is achieved with a pivot fitting with the features of claim 1.

According to the invention a blocking device is provided to lock in a blocking position, a rotational movement of the first pivot lever relative to the second pivot lever in a first rotational direction, wherein a continuous adjustment of the blocking position via a switching element is possible, the blocking means for an adjustment of the first pivot lever relative to the second pivot lever in the first direction of rotation overrides. Thereby, the first pivot lever can be adjusted continuously relative to the second pivot lever, so that adjustment in all desired angles is possible. In addition, the first pivot lever and the second pivot lever can be rotated circumferentially, so make an adjustment of 360 ° and more. Stops are not required in the fitting according to the invention, but may still be advantageous in certain applications. As a result, the pivot fitting for the adjustment of backrests, headrests, armrests or other components can be used in which a continuous adjustment is desirable. There is only one fitting needed to cover all imaginable swivel angle headrests, armrests, backrests or the like. The maximum swing angle can be formed by the attachments and not be specified by the fitting.

According to a preferred embodiment of the invention, the blocking device on a clamping axis, which is surrounded by a loop which is clamped around the clamping axis can be applied. Thereby, a stable fixation can be effected by the blocking device, which engages around the clamping axis according to the principle of the wrap spring with the loop. The wrap angle of the loop can be more than 180 °, in particular more than 270 °, whereby several revolutions of the loop around the clamping axis are possible.

Preferably, the switching element is arranged on the loop, and in a first position, a clamping fixation of the loop on the clamping axis is made possible and in a second position, a closing of the loop is blocked in order to prevent a clamping fixation of the loop on the clamping axis. By the switching element is thus determined whether the loop blocks a rotational movement of the pivot lever or an adjustment can be initiated when the loop is arranged in the second position. A pivot lever may be rotatably mounted on a first arm of the loop and are in engagement with a second arm of the loop to fix the loop in the first direction of rotation on the clamping axis and in the second To solve direction. Depending on the direction of force on the pivot lever, the loop can be clamped fixed or unlocked to allow in a rotational direction a rotational movement relative to the clamping axis and to prevent in the opposite direction of rotation rotation relative to the clamping axis.

After an adjustment process, the switching element activates the blocking device to block a rotational movement of the first pivot lever relative to the second pivot lever. Such activation can be effected for example by a movement of the first pivot lever relative to a second pivot lever in the second direction of rotation, for example, only a few degrees, so that the switching element terminates the adjustment process again. In this case, a control may be provided to actuate the switching element. The control element can be at least partially rotatable together with one of the two pivot levers. For this purpose, the control can be coupled via a coupling with one of the pivot lever, so that no further components for an actuation of the blocking device are necessary.

For a compact design, the control may be coupled to the first pivot lever via the clutch, while the second pivot lever is rotatably supported on the loop. The control thus follows the movement of the first pivot lever, while a rotational movement of the second pivot lever depends on whether the blocking device is activated or not.

According to a further embodiment, the switching element in the position for overriding the blocking device is clamped fixed. The switching element according to the invention is designed as a pin which is biased by a spring in the position in which the blocking device is effective. By the clamping fixing of the pin this can be fixed at least for an adjustment with preloaded spring, wherein after completion of the adjustment, the spring ensures that the pin is pressed directly into the blocking position when the first pivot lever relative to the second pivot lever in the second Direction of rotation is slightly moved.

For a reliable circuit, the control may have a run-on slope to actuate the switching element during a rotational movement. The Control can be rotated by the coupling, in particular a friction clutch with a spring, by a pivot lever.

On the second pivot lever, a projection is preferably formed, which engages in a receptacle on the second arm of the loop and upon rotation of the first pivot lever relative to the second pivot lever in the first direction of rotation moves the second arm of the loop relative to the first arm clamping the loop around the clamping axis. In this case, the projection may be arranged adjacent to the clamping axis, so that there are favorable leverage ratios and a compact design.

The control element is preferably rotatable in a pivoting range which is limited by two stops. By means of the stops, the maximum adjustment range of the pivot lever is predetermined, wherein different pivoting ranges can be realized by replacing the control element. The provision of a stop makes handling easier as the user feels a defined start and end position when resetting by one or two stops.

For a stable fixing of the pivot lever on the loop this can be rotatably mounted in a slot-shaped receptacle of the loop. As a result, transverse forces can also be transmitted to the loop by the pivoting lever.

A significant advantage of the fitting according to the invention is that two substantially identical fittings can be used in a piece of furniture or in a vehicle seat. This significantly reduces the production costs and the manufacturing costs for the fitting. In addition, the furniture or motor vehicle seat manufacturer has the advantage that he only has to stockpile a universal fitting.

Figur 1

eine Draufsicht auf einen erfindungsgemäßen Schwenkbeschlag;

Figur 2

eine perspektivische Explosionsdarstellung des Schwenkbeschlages der Figur 1;

Figur 3

eine Draufsicht auf die Schlinge des Schwenkbeschlages der Figur 2;

Figur 4

eine Detailansicht des Schwenkbeschlages der Figur 1 bei einer Belastung in die erste Drehrichtung;

Figur 5

eine Detailansicht des Schwenkbeschlages der Figur 1 bei einer Belastung in die zweite Drehrichtung;

Figuren 6A und 6B

zwei Ansichten des Schaltelementes in der Blockierposition;

Figuren 7A und 7B

zwei Ansichten des Schaltelementes in der Verstellposition;

Figuren 8 bis 11

mehrere Ansichten eines zweiten Ausführungsbeispiels eines erfindungsgemäßen Schwenkbeschlages;

Figur 12

eine perspektivische Explosionsdarstellung des Schwenkbeschlages der Figuren 8 bis 11;

Figur 13

eine Schnittansicht des Schwenkbeschlages der Figur 12 in der Blockierposition;

Figur 14

eine Schnittdarstellung des Schwenkbeschlages der Figur 12 in der Verstellposition, und

Figur 15

ein Möbel mit mehreren erfindungsgemäßen Beschlägen.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:

FIG. 1

a plan view of a pivot fitting according to the invention;

FIG. 2

an exploded perspective view of the pivot fitting of FIG. 1 ;

FIG. 3

a plan view of the loop of the pivot fitting of FIG. 2 ;

FIG. 4

a detailed view of the pivot fitting of FIG. 1 at a load in the first direction of rotation;

FIG. 5

a detailed view of the pivot fitting of FIG. 1 at a load in the second direction of rotation;

Figures 6A and 6B

two views of the switching element in the blocking position;

FIGS. 7A and 7B

two views of the switching element in the adjustment position;

FIGS. 8 to 11

several views of a second embodiment of a pivot fitting according to the invention;

FIG. 12

an exploded perspective view of the pivot fitting of FIGS. 8 to 11 ;

FIG. 13

a sectional view of the pivot fitting of FIG. 12 in the blocking position;

FIG. 14

a sectional view of the pivot fitting of Figure 12 in the adjustment position, and

FIG. 15

a piece of furniture with several fittings according to the invention.

A pivot fitting 1 comprises a first pivot lever 2 and a second pivot lever 3, which are pivotable relative to each other about an axis of rotation. Such a pivot fitting 1 can be used for example for furniture, for the adjustable fixation of armrests, headrests or other components.

The second pivot lever 3 is fixed to a loop 4, which surrounds a clamping axis 5. At the clamping axis 5, the first pivot lever 2 is fixed. The second pivot lever 3 is rotatably mounted on the loop 4 about an axis 6. The pivoting range of the second pivoting lever 3 may be limited relative to the loop 4 by a pin 8 in the form of a pin. The pivoting range of the second pivoting lever 3 relative to the loop 4 may be a few degrees, for example 1 ° to 8 °, in particular 2 ° to 5 °. At an inner end of the second pivot lever 3, a projection 7 is formed, which is arranged adjacent to the axis of rotation 6.

In FIG. 2 the swivel fitting 1 is shown in an exploded view. The first pivot lever 2 includes a serrated receptacle 20 which is plugged onto a likewise serrated pin 52 of the clamping axis 5, so that the first pivot lever 2 and the clamping axis 5 are rotatably connected to each other. On the first pivot lever 2 more openings 21 are also provided for mounting further components. In the FIG. 2 Furthermore, a washer 9 is shown, which rests against the loop 4.

The clamping axis 5 comprises a cylindrical portion 50 which is surrounded by a circular receptacle 40 on the loop 4. Between the cylindrical portion 50 and the serrated pin 52, a holding portion 51 is further formed for a switching mechanism.

The second pivoting lever 3 comprises a bearing opening 30, which is attached to the axis 6 on the loop 4. On the loop 4, an upwardly projecting pin 8 is further arranged, which is inserted into an opening 31 in the form of a slot or a game with respect to the pin 8 formed opening. Thereby, the second pivot lever 3 can be pivoted relative to the loop 4 in a predetermined angular range. The second pivot lever 3 further comprises openings 32 for mounting further components.

The loop 4 and the clamping axis 5 form a blocking device by means of which a rotational movement of the first pivot lever 2 is blocked relative to the second pivot lever 3 in a first direction of rotation and in a second direction of rotation. The blocking device can be overridden by a switching element 10 for an adjustment. The switching element 10 is arranged adjacent to a control element 14, which is connected via a coupling in the form of a wave spring 15 with the first pivot lever 2. The coupling can also be realized in other ways, for example as a friction clutch. The corrugated spring 15 is inserted by clamping between a fixed to the clamping axis 5 locking ring 16 and the control element 14, so that upon rotation of the clamping axis 5, the control 14th is moved by frictional forces with the clamping axis 5 and the first pivot lever 2 until a further rotational movement, for example, is prevented by a stop. In addition, a cover 17 is present, so that the pivoting mechanism does not interfere with other components, such. B. fillings of upholstered furniture comes into contact.

In FIG. 3 the sling 4 is shown in detail. The loop 4 comprises a first arm 41, which is L-shaped and on the outer leg of the axis 6 and the pin 8 are arranged. The first arm 41 further surrounds a first part of the clamping axis 5, wherein a second arm 42 is connected to the first arm 41. On the second arm 42, a receptacle 46 is provided, in which the projection 7 of the second pivot lever 3 is inserted. The first arm 41 and the second arm 42 of the sling 4 are movable relative to each other, wherein a radial gap 44 adjacent to the receptacle 40 between the arms 41 and 42 is formed. Further, an angled, preferably rectangular, formed gap 43 between the arms 41 and 42 is provided so that a movement of the arms 41 and 42 in a certain angular range, for example between 0.5 ° and 5 °, is possible.

In FIG. 4 a load of the second pivot lever 3 is shown relative to the first pivot lever 3 in the clamping direction. When applying the force F ₁ to the left in FIG. 4 the second pivoting lever 3 is slightly rotated about the axis 6, so that the projection 7 acts in the receptacle 46 on the loop 4 on the second arm 42 of the loop 4 with the force F ₂ . Thereby, the second arm 42 is pressed to the first arm 41 of the loop, and the radial gap 44 between the arms 41 and 42 is reduced to the width b. By squeezing the arms 41 and 42, the loop 4 clampingly surrounds the cylindrical portion 50 of the clamping axis 5, so that a relative movement between the loop 4 and the clamping axis 5 is prevented. As a result of the load with the force F ₁ , no rotational movement of the second pivot lever 3 relative to the first pivot lever 2 can take place.

In FIG. 5 is shown a load of the second pivot lever 3 against the first direction of rotation, ie in the second direction of rotation. The force F ₁ * presses in FIG. 5 to the right, so that the second pivot lever 3 is rotated slightly about the axis 6 and the projection 7 acts with a force F ₂ * on the second arm 42 of the loop 4. By the force F ₂ *, the second arm 42 is slightly pushed away from the first arm 41, so that the gap 44 widened to the width B. By spreading the first arm 41 to the second Arm 42 is a rotational movement between the loop 4 and the clamping axis 5 allows. The rotation can be done at any angle, for example, more than 360 °.

The function of the switching element 10 will be described with reference to FIGS FIGS. 6 and 7 explained in more detail. In the Figures 6A and 6B the switching element 10 is shown in an inactive position in which blocking of the rotational movement of the first pivot lever 2 to the second pivot lever 3 in the first direction of rotation is enabled and in the second direction of rotation does not take place blocking, as in FIGS. 4 and 5 was explained. The switching element 10 is biased by a spring 13 in this inactive position, wherein the spring 13 is supported on a bottom 47 of the arm 41 of the loop 4. The switching element 10 is located adjacent to the radial gap 44 between the first arm 41 and the second arm 42. Further, the switching element has a tubular receptacle 12 for the spring 13 and a central portion which projects into the gap 44. An upper pin 11 of the switching element 10 projects beyond the loop 4 upwards and bears against a web 18 of the control element 14. On the web 18, a stop 19 is formed, which limits a rotational movement of the control element 14 relative to the switching element 10.

In the inactive position, the central portion of the switching element 10 is located with a wall 60 adjacent to a wall 48 on the second arm 42. The wall 48 is recessed so that the gap 44 is greater in the area of the wall 48 than in the rest Area. The wall 48 is connected via a step 49 with a wall 55 of the arm 42. Lying the wall 48 and the wall 60 as in FIG. 6B shown opposite each other, the first arm 41 and the second arm 42 of the sling 4 can be moved as shown in FIGS FIGS. 4 and 5 is shown, in particular, the loop 4, the clamping axis 5 clamp, when the arms 41 and 42 are moved towards each other.

In the FIGS. 7A and 7B the first pivot lever 2 was rotated in the second direction of rotation, whereby the control element 14 was rotated with the annular portion due to the coupling by the wave spring 15. By turning the control element 14, the switching element 10 is moved along the web 18 and by a run-on slope 25 at the Ridge 18 is pressed into a receptacle 45 of the first arm 41 against the force of the spring 13. The rotational movement of the control element 14 is terminated when a stop 26 adjacent to the run-on slope 25 reaches the pin 11 of the switching element 10. Then, the first pivot lever 2 relative to the second pivot lever 3 are moved further in the second direction of rotation, wherein the coupling with the control element 14 ensures that the control element 14 can remain in the fixed position.

In FIG. 7B is shown that the wall 60 is no longer applied to the widened wall 48 of the arm 42 by the depression of the switching pin, but at least partially moved over the step 49 down, so that now the wall 60 abuts the wall 55. The switching element 10 is now clamped between the first arm 41 and the second arm 42 and prevents the first arm 41 and the second arm 42 from moving toward each other to establish a clamping connection between the sling 4 and the clamping shaft 5. If now the first pivot lever 2 is moved relative to the second pivot lever 3 in the first direction of rotation, no clamping of the loop 4 relative to the clamping axis, although according to Figure 4, a force of the second pivot lever 3 is applied via the projection 7 on the second arm 42 , because the second arm 42 is blocked by the switching element 10. The arrangement of the switching element 10 in the clamping position can thus also be a movement in the first direction of rotation, since the blocking device is disabled.

Now, if the first pivot lever 2 moves relative to the second pivot lever 3 in the first direction of rotation, the switching element 10 is clamped between the first arm 41 and the second arm 42 fixed until the user the first pivot lever 2 relative to the second pivot lever 3 slightly in moves the second direction of rotation. Then, by the extension of the nip 44 by action of the force F1 on the projection 7, the clamping of the switching element 10 is released in the nip 44 and the arms 41 and 42 can spread slightly, which solves the wall 60 of the clamping fixation with the wall 55, and due to the force of the spring 13, the switching element 10 can now be pushed upwards out of the receptacle 45. As a result, when loaded in the first direction of rotation, the first arm 41 can now be compressed again relative to the second arm 42 and block the loop 4 on the clamping axis 5.

In the illustrated embodiment, a corrugated spring 15 is used to couple the control element 14 with the first pivot lever 2 and the clamping axis 5. Of course, other coupling elements can be provided.

In addition, instead of the switching element shown another switching mechanism can be used to block a clamping action of the loop 4 for an adjustment or put out of force.

In the FIGS. 8 to 14 is a second embodiment of a pivot fitting 1 'according to the invention shown. The pivot fitting 1 'comprises a first pivot lever 2 and a second pivot lever 3, which can be arranged in different angular positions relative to each other, as in the FIGS. 8 to 11 is shown. Unlike the first embodiment, in this pivot fitting 1 ', the adjustment of the pivot lever 2 and 3 are predetermined relative to each other by stops.

The mechanical details of the pivot fitting 1 'are in FIG. 12 to recognize.

The first pivot lever 2 comprises a hexagonal receptacle 20 ', which can be plugged onto a hexagonal pin 52' of the clamping axis 5 ', so that the first pivot lever 2 and the clamping axis 5' are rotatably connected to each other. Furthermore, at the lower end of the clamping axis 5 'also a hexagonal holding portion 51' is present.

The second pivot lever 3 is fixed to a loop 4 ', which encloses with a cylindrical receptacle 40 a likewise cylindrical portion 50' of a clamping axis 5 '. The second pivot lever 3 is inserted into a slot-shaped receptacle 62 on the loop 4 'and rotatably mounted there. For this purpose, a bearing opening 30 is formed on the second pivot lever 3, which is penetrated by an axis 6, which is inserted into an opening 61 on the loop 4 'and the second pivot lever 3 rotatably supports. The axis 6 can be secured by a nut 64 with washer 63 against axial displacement. On the second pivot lever 3 are further openings 32 for mounting additional attachments and in the area which projects into the loop 4 ', a projection 7 is formed.

The loop 4 'and the clamping axis 5' form a blocking device for the pivot lever 2 and 3, which blocks in a first direction of rotation and rotation in a second direction of rotation, wherein the blocking means are over a switching element 10 'for an adjustment overridden can. The switching element 10 'is designed as a pin which is biased by a spring 13 to a control element 14' out. The switching element 10 ' is arranged in a receptacle 45 adjacent to a gap 44 between two arms 41 and 42 of the loop 4 '.

The control element 14 'is rotatably mounted on the clamping axis 5' and has for this purpose an opening which is penetrated by a portion 54 of the clamping axis 5 '. The control element 14 'in this case has two stops 56 and 57 on an annular portion, which can rest on a projection 53 on the clamping axis 5', so that the range of rotation between the control element 14 'and the clamping axis 5' is limited. As in the previous embodiment, the control element 14 'has a perpendicular to the axis of rotation of the clamping axis 5' extending web 18 'on which a run-on slope 25' is formed. The web 18 'and the run-on slope 25' serve to switch the prestressed switching element 10 'on the loop 4'. In order to avoid axial displacement of the control element 14 ', a securing ring 16 is mounted adjacent to the control element 14' on the portion 54 of the clamping axis 5 '. Further, a spring 58 is disposed between two locking rings 16, wherein the spring 58 biases the control element 14 'in a rotational direction. For this purpose, an angled end portion 59 of the wire formed spring 58 is inserted into an opening on the web 18 ', and an opposite end of the spring 58 is held on a receptacle 46' of the loop 4.

To bias the loop 4 'toward the first pivot lever 2, a corrugated spring 15 is provided on the loop 4' on the side facing away from the pivot lever 2, which is arranged between two washers 9 '. On the axially outer side turn a locking ring 16 is provided on a holding portion 51 'of the clamping axis 5'.

The actuation of the second pivoting lever 3 causes the projection 7 optionally compresses or expands the loop 4 ', wherein the squeezing lever 2 and 3 are blocked relative to each other by the squeezing of the loop 4'. Only when the second pivot lever 3 is pivoted in the opposite direction, the projection 7 presses on the arm 42 of the loop 4 ', so that it widens slightly and allows a pivoting movement. If the second pivoting lever 3 is now pivoted in the non-blocked direction of rotation, this can take place until the control element 14 'reaches the projection 53 with the stop 56. Then, in a further pivotal movement of the second pivot lever 3, the control element 14 'is no longer rotated, but remains rigidly on the clamping axis 5' Thus, the run-on slope 25 'comes into engagement with the switching element 10', which is depressed will, as in the FIGS. 13 and 14 is shown. The switching element 10 'is pressed against the force of the spring 13 in the receptacle 45 on the loop 4'. By depressing the switching element 10 ', the arms 41 and 42 are held in the expanded position, as for the first embodiment with respect to the FIGS. 7A and 7B was explained. Then, a reset operation can be initiated until the control element 14 'reaches the projection 53 with the second stop 57. Then, in a further return movement of the second pivot lever 3, the switching element 10 'along the run-on slope 25' moved and can return due to the force of the spring 13 in the protruding position, so that the blocking effect is repealed. Then, the second pivot lever 3 can be rotated again in the opposite direction of rotation while it is locked in the direction of rotation for the return operation. By using different controls 14 ', the adjustment can be adjusted individually by the stops 56 and 57. For the user, pivoting is easier to handle up to a stop than if there is no stop.

In the FIGS. 8 . 9 . 10 . 11 . 13 and 14 the first lever 2 is connected to the clamping axis 5 'via the holding section 51'. In FIG. 12 the receptacle 20 'of the first lever 2 is shown above the pin 52' of the clamping axis 5 'and can be rotatably connected thereto. As a result, the pivot fitting 1 'in FIG. 12 for one side of the furniture, for example, in a backrest, or the vehicle seat and the pivot fitting in the FIGS. 8 . 9 . 10 . 11 . 13 and 14 be used for the other side of the furniture or the vehicle seat. The same applies to the pivot fitting 1 from the first embodiment. It is only important that each of the receptacle 20, 20 'and the pin 52, 52' and the holding portion 51, 51 'rotationally fixed, in particular by a positive connection, are fixed to each other.

In FIG. 15 a furniture 100 is shown with several substantially identical swivel fittings 1. Two gift fittings 1 store a headrest 101, two swivel fittings 1 an armrest 102 and two swivel fittings 1 a leg rest 103. In order to avoid the use of right and left swivel fittings, in a first pivot fitting 1, the first lever 2 rotatably on the pin 52 of the clamping axis 5 may be arranged and in the second pivot fitting 1, the first lever 2 against rotation the opposite side of the clamping axis 5, namely to be arranged on the holding portion 51 of the clamping axis 5.

LIST OF REFERENCE NUMBERS

1, 1 '

swivel fitting

2

pivoting lever

3

pivoting lever

4, 4 '

loop

5, 5 '

clamp axis

6

axis

7

head Start

8th

pen

9

washer

9 '

washer

10, 10 '

switching element

11

pen

12

admission

13

feather

14, 14 '

control

15

Well spring

16

circlip

17

cover

18

18 'footbridge

19

attack

20, 20 '

admission

21

opening

25, 25 '

starting slope

26

attack

30

bearing opening

31

opening

32

opening

40

admission

41

poor

42

poor

43

gap

44

gap

45

admission

46, 46 '

admission

47

ground

48

wall

49

step

50, 50 '

section

51, 51 '

holding section

52, 52 '

pen

53

head Start

54

section

55

wall

56

attack

57

attack

58

feather

59

end

60

wall

61

opening

62

admission

63

washer

64

mother

100

Furniture

101

headrest

102

armrest

103

leg rest

F ₁

force

F ₂

force

F ₁ *

force

F ₂ *

force

b

width

B

width

Claims (18)

1. A pivoting fitting (1, 1'), comprising a first pivoting lever (2) which can be moved about an axis of rotation in relation to a second pivoting lever (3), wherein a blocking device (4, 4', 5, 5') is provided in order to block a rotational motion of the first pivoting lever (2) in relation to the second pivoting lever (3) in a first direction of rotation and to enable said rotational motion in an opposite second direction of rotation in a blocking position, whereby a switching element (10) is provided for an infinitely variable adjustment of the blocking position in order to deactivate the blocking device (4, 4', 5, 5') for an adjusting process of the first pivoting lever (2) relative to the second pivoting lever (3) in the first direction of rotation, characterized in that the switching element (10, 10') is formed as a pin which is pretensioned by a spring (13) in the position in which the blocking device (4, 4', 5, 5') is effective.
2. A pivoting fitting according to claim 1, characterized in that the blocking device comprises a clamping axle (5, 5') which is surrounded by a loop (4, 4') which can be placed in a clamping manner about the clamping axle (5, 5').
3. A pivoting fitting according to claim 1 or 2, characterized in that the switching element (10, 10') is arranged on the loop (4, 4') and allows a clamping fixing of the loop (4, 4') about the clamping axle (5, 5') in a first position and permits a twisting of the loop (4, 4') around the clamping axle (5, 5') in a second position.
4. A pivoting fitting according to one of the preceding claims, characterized in that a pivoting lever (3) is rotatably mounted on a first arm (41) of the loop (4, 4') and is in engagement with a second arm (42) of the loop (4, 4'), in order to fix the loop (4, 4') in the first direction of rotation on the clamping axle (5, 5') and to release it in the second direction of rotation.
5. A pivoting fitting according to one of the preceding claims, characterized in that after an adjusting process the switching element (10) activates the blocking device (4, 4', 5, 5') in order to block a rotational motion of the first pivoting lever (2) relative to the second pivoting lever (3).
6. A pivoting fitting according to one of the preceding claims, characterized in that a control element (14, 14') is provided in order to actuate the switching element (10, 10').
7. A pivoting fitting according to claim 6, characterized in that the control element (14, 14') is rotatable at least in sections with the first or second pivoting lever (2, 3).
8. A pivoting fitting according to claim 6 or 7, characterized in that the control element (14, 14') is coupled via a coupling to one of the pivoting levers (2, 3).
9. A pivoting fitting according to one of the claims 6 to 8, characterized in that the control element (14, 14') is coupled to the first pivoting lever (2) via the coupling, while the second pivoting lever (3) is rotatably mounted on the loop (4, 4').
10. A pivoting fitting according to one of the preceding claims, characterized in that the switching element (10, 10') can be fixed in a clamping manner in the position for deactivating the blocking device (4, 4', 5, 5').
11. A pivoting fitting according to one of the preceding claims 6 to 9, characterized in that the control element (14, 14') comprises a guide bevel (25, 25') in order to actuate the switching element (10, 10') during a rotational motion.
12. A pivoting fitting according to one of the preceding claims, characterized in that a projection (7) is formed on the second pivoting lever (3), which projection engages in a receptacle (46) on the second arm (42) of the loop (4, 4'), and during a rotational movement of the first pivoting lever (2) in relation to the second pivoting lever (3) in the first direction of rotation the projection (7) moves the second arm (42) of the loop (4, 4') in relation to the first arm (41) in order to fix the loop (4, 4') in a clamping manner on the clamping axle (5, 5').
13. A pivoting fitting according to one of the preceding claims, characterized in that the rotational range of the control element (14') is limited by one or two stops (56, 57).
14. A pivoting fitting according to one of the preceding claims, characterized in that the second pivoting lever (3) is rotatably held in a slotted receptacle (62) of the loop (4').
15. A pivoting fitting according to claim 13, characterized in that the control element (14') is pretensioned by a spring (58) in a direction of rotation.
16. A pivoting fitting according to one of the preceding claims, characterized in that the first lever (2) is arranged in a rotationally fixed manner either on a pin (52, 52') or on a retaining section (51, 51') on the clamping axle (5, 5').
17. A piece of furniture (100) or motor vehicle seat with at least one pivoting fitting (1, 1') according to one of the claims 1 to 16.
18. A piece of furniture (100) or motor vehicle seat with at least two pivoting fittings (1, 1') according to claim 17, characterized in that in the first pivoting fitting (1, 1') the first lever (2) is arranged in a rotationally fixed manner on the pin (52, 52') of the clamping axle (5, 5') and in the second pivoting fitting (1, 1') the first lever (2) is arranged in a rotationally fixed manner on the holding section (51, 51') of the clamping axle (5, 5').

Images