CN116981381A - Pivoting fitting and sitting or lying device - Google Patents

Abstract

The application relates to a pivot fitting (1) comprising a bearing element (2) on which a first pivot lever (3) and a second pivot lever (4) are rotatably mounted about mutually spaced-apart axes (5, 6). The first pivot lever (3) and the second pivot lever (4) are mutually engaged on sides facing each other and can rotate together, wherein the bearing element (2) is provided with a movable locking element (14) which can be moved between a position in which the first and second pivot levers (3, 4) are locked and a position in which the first and second pivot levers (3, 4) are unlocked, and in an unlocked position the pivot levers (3, 4) can be rotated and the locking element (14) can be moved manually from the locked position to the unlocked position using an operating element (7). In this way, the seat part and the backrest part can be pivotally mounted relative to each other on the furniture via the pivot fitting.

Description

Pivoting fitting and sitting or lying device

Technical Field

The application relates to a pivot fitting having a bearing element on which a first pivot lever and a second pivot lever are rotatably mounted about spaced-apart axes, the first pivot lever and the second pivot lever being joined on sides facing one another and rotatable together.

Background

DE 23 55 251 B2 discloses a piece of reclining furniture with two pivoting side parts which can be fixed in different angular positions via a locking plate and a locking element. The assembly and manufacture of the individual components is relatively complex and, furthermore, the retention force must be provided via a single locking tooth.

DE 10 2009 014 141 A1 discloses a frame with two support elements which can be fixed to each other in different angular positions by means of locking means. The locking device can be moved to the release position by an actuating element. The fitting also includes a number of individual components that must be individually mounted to the furniture.

Disclosure of Invention

It is therefore an object of the present application to create a pivot fitting which has a compact design and allows for a reliable guiding and locking of two pivot rods and which can be easily mounted on a sitting or lying device.

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

The pivot fitting according to the application comprises: a bearing element, on which the first and second pivot levers are rotatably mounted about spaced-apart axes, the first and second pivot levers being engaged with each other on sides facing each other and rotatable together, a movable locking element being provided on the bearing element, the locking element being movable between a locking position in which the first and second pivot levers are locked and an unlocking position in which the first and second pivot levers are unlocked, the pivot levers being rotatable, and the locking element being manually movable from the locking position to the unlocking position by means of an operating element. In this process, the locking element may be engaged with the first pivot lever or/and the second pivot lever for locking via one or more locking portions. The locking element may be formed in one or more pieces. The pivot fitting according to the application can thus be mounted as a preassembled unit on a sitting or lying device, since the individual components are mounted on the bearing element or guided on the bearing element. Furthermore, a compact design results, since the two pivot levers are directly coupled to one another and can be rotated together after unlocking. The locking element can be moved via manual unlocking of the operating element, which eliminates the need for an electric drive.

Depending on the application, the distance between the axes of the two pivot rods can advantageously use a pivot fitting, for example in the case of upholstered furniture, which can expand the area in which the facing material is compressed, thus reducing the load of the facing material in this area.

Preferably, the locking element is mounted on the bearing element such that it can be displaced and/or pivoted. For this purpose, for example, elongated holes, guide webs or other guide elements may be provided for guiding the locking elements on the bearing element. Alternatively, the locking element may also be mounted on the bearing element such that it can only pivot.

In a preferred embodiment, the locking element comprises: a first locking portion engageable with the first pivot lever for locking; and a second locking portion engageable with the second pivot rod for locking. Thus, two spaced apart locking portions on a single locking element can each be used to directly lock one of the two pivot rods, so that a high holding force can be provided, which is particularly advantageous for installation in sitting and lying furniture. Directly locking the two pivot rods via a single locking element also avoids adding tolerances during locking.

Preferably, the operating element is pretensioned into the locking start position. The operating element can be designed as a pivot lever which can be moved in one or both rotational directions from a locking start position in order to move the locking element into an unlocking position. Preferably, the pivot lever is rotatable in both directions from the initial position, i.e. in opposite directions, to move the locking element to the unlocked position. This allows the pivot fitting to be flexibly adjusted to the mounting position and used on the right or left side, or to be operated by pushing or pulling, since the direction of rotation of the unlocking is insignificant. However, instead of the operating element, the locking element may also be pretensioned into the locking position or held in the locking initial position by gravity.

Various auxiliary devices, such as a lever or a flexible ring, may be attached to the operating element and used for operating the operating element by a user. Furthermore, the actuating element can also be designed as a slide which can be moved along the guide rail.

The operating element is preferably connected to a coupling element which is rotatably mounted in a recess of the locking element. The coupling element, for example an eccentric, can thereby move the locking element by a rotational movement along the cam guide at the edge of the recess. Other mechanisms for converting the pivoting of the operating element into a translation and/or rotation of the locking element are also conceivable.

In another embodiment, bowden cables can also be used as the operating element. By pulling the bowden cable, the locking element can be pivoted into the unlocked position or can be moved linearly.

In a further embodiment, the coupling element is designed as a slide and locks the locking element via an inclined plane.

In order to prevent false actuation, a stop can be provided on the pivot fitting, by means of which the rotational movement of one of the two pivot levers is limited. Preferably, two stops may be provided, one for each pivot rod, which defines the rotation angle of the pivot rod. Such a stop may be formed, for example, by a pin engaged by an arcuate recess in the pivot rod. Other stops, such as tabs, may also be used.

For a particularly flat design of the pivot fitting, the bearing element comprises two plates, for example metal plates, between which the pivot lever is arranged. This allows arranging and guiding the pivot rod and other components between the two plates in a stable manner.

For reliable functioning, the operating element can be pretensioned by a spring, for example by a helical spring. Such a spring may optionally be relaxed in a central position of the operating element in order to be tensioned by the operating element, irrespective of the direction of rotation. Alternatively, the coil spring can also pretension the actuating element into the initial end position.

In another embodiment, the operating element may be latched in the locked or/and unlocked position by undercut to secure the operating element in one or both of the end positions. The undercut may be used on the operating element or the locking element without an additional spring or in combination with an additional spring.

In order to absorb high holding forces by the pivot fitting, the first pivot lever and the second pivot lever can each be coupled to one another via a toothing, in particular an annular or ring segment-shaped toothing. A further tooth is preferably also used on the locking element, which can engage with a tooth on the pivot lever via two spaced-apart locking portions, preferably with teeth. The teeth on the locking element may be formed on a curved edge or a straight edge.

The pivot fitting according to the application is preferably used in a sitting or lying device, which can be designed as a piece of furniture. For example, in the case of furniture, the seat part and the backrest part are connected to one another via the pivot fitting, so that the seat part and the backrest part can pivot relative to one another. Preferably, the sitting or lying device comprises two pivot fittings which are synchronized with each other via a synchronizing member (e.g. a bar). Alternatively, the two pivot fittings can also be brought simultaneously into the unlocked position via a bowden cable, which is incorporated on one side of the sitting or lying device. Such sitting or lying devices can be designed, for example, as beds with a slatted frame, upholstered furniture or garden furniture. Within the meaning of the application, the seat part can also be configured as a lying part and in the installed position it is oriented substantially horizontally, while the backrest part can be pivoted from the horizontal orientation towards the vertical orientation. In addition, the backrest part may also optionally be configured as a armrest or a headrest.

Drawings

The application is explained in more detail below by means of several embodiments with reference to the drawings.

FIGS. 1A and 1B show two views of a pivot fitting according to the application in an assembled position;

FIG. 2 shows an exploded view of the pivot fitting of FIG. 1;

FIG. 3 shows a top view of the pivot fitting in an assembled position;

FIG. 4 shows a top view of a cross section of the pivot fitting of FIG. 3;

FIG. 5 shows a cross-sectional view of the pivot fitting in an unlocked position;

FIG. 6 shows a perspective view of a slat frame with a pivot fitting according to the present application;

FIG. 7 shows a view of the slat frame of FIG. 6;

FIG. 8 shows a view of the slatted frame in a pivotally mounted position;

FIG. 9 shows a view of the slat frame of FIG. 7 in a functional position;

FIGS. 10A and 10B illustrate two views of the slatted frame of FIG. 7 in different positions;

FIGS. 11A and 11B show two views of upholstered furniture having a pivot fitting according to the application;

fig. 12A and 12B show two views of another piece of furniture with a pivot fitting according to the application, and

fig. 13A and 13B show two views of a car seat with a pivot fitting according to the application.

Detailed Description

The pivot fitting 1 comprises a bearing element 2 on which a first pivot rod 3 is rotatably mounted about an axis 5. At a distance from the first pivot rod 3, the second pivot rod 4 is rotatably mounted on the bearing element 2 about an axis 6, the axes 5 and 6 being spaced apart. The two pivoting levers 3 and 4 can be locked in different angular positions and an operating element 7 in the form of a pivotably mounted lever is provided for releasing such a locking position. The operating element 7 is rotatably mounted around a shaft bolt 8, which is engaged by the bearing element 2.

The bearing element 2 comprises two plates 2a and 2b between which a part of the first pivot rod 3 and the second pivot rod 4 is arranged, each of which protrudes from the bearing element 2 in a web-like portion. A pin 9 is provided on the protruding part of the pivot rods 3 and 4, to which the furniture can be fixed in each case. Other fastening means may also be provided to connect one of the pivot rods 3 or 4 to the furniture part than the pin 9.

Stops 10 and 11 are also provided on the bearing element 2 to limit the pivoting range of the pivot rods 3 and 4.

Fig. 2 shows an exploded view of the pivot fitting 1. The first pivot rod 3 comprises an opening 15 through which the axis 5 passes. The second pivot lever 4 comprises an opening 16 through which the axis 6 passes. The first pivot lever 3 comprises on the side facing the second pivot lever 4 teeth 19 which engage with teeth 20 on the second pivot lever 4, the teeth 19 and 20 being arranged in the form of ring segments around the openings 15 and 16. The teeth 19 and 20 have the effect that the pivot rods 3 and 4 can only move together in opposite directions.

For locking the pivot rods 3 and 4, a locking element 14 is provided, which is displaceably mounted between the plates 2a and 2b of the bearing element 2. For this purpose, the locking element 14 comprises protruding guide pins 23, each of which is guided in an elongated hole 13 in the plates 2a and 2b. Furthermore, two spaced apart locking portions 21 are formed on the locking element 14, which can engage with teeth 19 on the first pivot lever 3 and teeth 20 on the second pivot lever 4.

For displacing the locking element 14, a recess 22 is provided in the locking element 14, in which recess an eccentric 30 is arranged. The eccentric 30 comprises an opening 31 which engages with the shaft bolt 8, so that the eccentric 30 can be rotated via the operating element 7. A guide cam 32 is provided on each of the opposite sides of the eccentric 30 which rests against the edge of the recess 22.

The operating element 7 is rotatably mounted on the bearing element 2 on the plate 2b via a shaft bolt 8 which is axially fixed via a washer 29. The operating element 7 is pretensioned into the initial position via a spring 40, in particular a helical spring, one end 41 of the spring 40 being supported on a tab 27 formed integrally with the plate 2b, and the opposite end being fixed to the shaft bolt 8.

The two plates 2a and 2b of the bearing element 2 are also penetrated by bolt-shaped stops 10 and 11. The stop 10 is engaged by the arcuate elongate aperture 18 in the second pivot rod 4 and the stop 11 is engaged by the arcuate elongate aperture 17 in the pivot rod 3 such that the range of pivoting associated with the stops 10 and 11 is limited due to the length of the arcuate elongate apertures 17 and 18.

In fig. 3, the pivot fitting 1 is shown in an assembled position, which is opposite the operating element 7. The operating element 7 can be rotated clockwise against the force of the spring 40 in order to unlock the pivot rods 3 and 4. In this case, the spring 40 is designed as a coil spring and is in a relaxed state in the initial position shown, whereby the spring 40 is tensioned by turning the operating element 7, since the end of the spring 40 opposite the end 41 is fixed to the shaft bolt 8. The operating element 7 can alternatively be mounted rotated 180 °, for example on the opposite side of the piece of furniture for better operability. This makes it possible to operate the operating element 7 counterclockwise.

Fig. 4 shows a view of the pivot fitting, wherein the plate 2b of the bearing element 2 is omitted. This shows two pivot rods 3 and 4 which are aligned linearly in the position shown, since the longitudinal directions of the pivot rods 3 and 4 are aligned. The pivot rods 3 and 4 are coupled together by means of the teeth 19 and 20 and the locking element 14 is in a locked position, wherein the two locking portions 21 engage with the teeth 19 and 20, respectively. To be able to rotate the pivot rods 3 and 4, the locking element 14 is manually moved to the unlocking position. For this purpose, the operating element 7 is turned in a direction such that the guide cams 32 in the recesses 22 on the locking element 14 ensure the displacement of the locking element 14, which is guided linearly via the two guide pins 23 in the elongated holes 13.

In fig. 5, the locking element 14 has been moved to the unlocking position by rotating the operating element 7 and the eccentric 30, wherein the locking portion 21 is out of engagement with the teeth 19 and 20. In this unlocking position, the first pivot lever 3 can now be rotated relative to the second pivot lever 4, as long as this can be achieved by the stops 10 and 11 in the arcuate elongated holes 17 and 18. After the desired angular position has been reached, the operating element 7 can be released, which is moved back into the starting position by the spring 40, so that the eccentric 30 is rotated back again and the locking element 14 is pressed back onto the teeth 19 and 20 by the guide cam 32. The design of the eccentric 30 with the guide cam 32 and the recess 22 can alternatively also be designed in such a way that the locking element 14 moves counter-clockwise or clockwise independently of the direction of movement of the operating element 7 into the unlocking position.

The pivot fitting 1 shown in fig. 1 to 5 can be used for various sitting or lying devices, in particular furniture, as will be explained below.

Fig. 6 shows a bed frame 55 on which the slat frame 50 may be supported. The slatted frame 50 includes a seat member 51 or foot member and a back member 52. The seat part 51 and the backrest part 52 are connected to each other by two pivot rods 1, which are arranged on opposite longitudinal sides of the slat frame 50. The first pivot rod 3 is in each case connected to the seat part 51, and the second pivot rod 4 is in each case connected to the backrest part 52. Via the two pivot fittings 1, the seat part 51 and the backrest part 52 can be pivoted relative to each other and locked in a desired angular position. The support elements 53 are fixed to the seat part 51 on opposite longitudinal sides and may be supported on bearing blocks 54 on side parts of the bed frame 55. In this case, the flat plane side of the bearing housing 54 is directed upward, so that the support element 53 is supported in the form of a slide bearing and can be moved in the longitudinal direction. Additional support elements 53 are provided on opposite sides of the back-rest element 52, each of which is supported on additional bearing seats 54 on the side parts of the bed frame 55. A bearing seat 54 for the support element 53 is rotatably mounted on the backrest part 52 so as to provide one or more upwardly open receptacles 56 into which the wedge-shaped support element 53 can be inserted. As a result, the backrest part 52 is rotatably supported on the bearing housing 54 around the support element 53, but is not displaceable.

Fig. 7 shows the slatted frame 50 with the seat part 51 and the backrest part 52 in a flat position. The frame members arranged on the seat part 51 and the backrest part 52 in the longitudinal direction are connected to each other by a bar 59. The first pivot rod 3 and the second pivot rod 4 are aligned so as to form a flat lying surface. An operating element 7 in the form of a pivotable lever is arranged on opposite longitudinal sides of the slat frame 50, which operating element can be pivoted to release the locking position of the two pivot levers 3 and 4, so that the backrest part 52 can be pivoted relative to the seat part 51. Such pivoting may be accomplished entirely manually without motor drive, particularly by gravity, and may also be applied from a lying or sitting position.

The two pivot fittings 1 on opposite longitudinal sides of the slat frame 50 are also synchronized via a bar 57, which is attached to the shaft bolt 8 on the operating element 7, so that the pivot fitting 1 is unlocked by moving one of the two operating elements 7, since the other operating element 7 will also move automatically. In this case, the rod 57 is coupled to the two shaft bolts 8 and thus directly or indirectly to the two operating elements 7 in a rotationally fixed manner. In the configuration with bars 57 for synchronization, one of the two operating elements 7 can be omitted on one side.

Synchronization of the two pivot fittings 1 can also be established by other mechanical means, such as a pull wire.

In fig. 8, the slatted frame 50 is shown with a mattress 58 upon which a person may lie in a more comfortable sitting position. The first pivot lever 3 and the second pivot lever 4 are no longer arranged in a 180 ° orientation, but in a range between 100 ° and 160 °. The backrest part 52 is supported via the support elements 53 in receptacles 56 on two bearing blocks 54 on the side parts of the bed frame 55, while the seat part 51 is supported via the support elements 53 on flat parts on the two bearing blocks 54, wherein the angular orientation of the backrest part 52 with respect to the seat part 51 means that the distance between the two support elements 53 on the slat frame 50 changes and the position of the pivot fitting 1 is further immersed in the bed frame 55. By rotating the operating element 7, the locking element 14 can be moved to the unlocking position, so that a user lying on the mattress 58 can then move the backrest part 52 into the desired position relative to the seat part 51 by transferring the weight.

Fig. 9 shows another functional position of the bed, in which the slat frame 50 is pivoted on the bed frame 55 about support elements 53, which are attached to the backrest part 52. In this position, the user may fill or empty the storage space under the slatted frame 50.

The slat frame 50 is held in the extended position by two pivot fittings 1.

In fig. 10A, the slat frame 50 is shown in an extended position, in which the two pivot rods 3 and 4 are arranged at an angle of 180 °. If the slat frame 50 is folded for transport, the locking element 14 can be moved via the operating element 7 to the unlocking position and the backrest part 52 folded onto the seat part 51, as shown in fig. 10B. The pivoting angle between the first pivoting lever 3 and the second pivoting lever 4 can be enlarged to 180 so that they can be pivoted approximately 180 to a folded position on top of each other so that the slat frame 50 can be folded for transport and storage.

Fig. 11A and 11B show a modified embodiment of a piece of furniture designed as a sitting or lying device, which is designed as a upholstered piece of furniture, for example as a sofa or armchair. The furniture 60 comprises a seat part 61 on which a backrest part 62 is pivotally mounted via one or more pivot fittings 1. The first pivot rod 3 is fixed to the seat part 61 and the second pivot rod 4 is fixed to the backrest part 62, wherein the backrest part 62 can alternatively be designed as an armrest or a headrest. In all other respects, the pivot fitting 1 is designed as described above and is used to adjust the back member 62 relative to the seat member 61. In the present embodiment, the pivoting may also be supported by, for example, a gas spring.

Fig. 12A and 12B show another embodiment of garden furniture 70 designed as a sitting or lying device, wherein a pivot fitting 1 according to the application is used. The garden furniture comprises a frame 74, for example made of metal or plastic, on which a seat part 71 and a back part 72 are arranged, which are pivotably held against each other on opposite longitudinal sides via two pivot fittings 1. The first pivot rod 3 is connected to the seat part 71 and the second pivot rod 4 is connected to the back part 72, the cushion 73 being placed on the seat part 71 and the back part 72. The bearing blocks may be provided on the frame 74 as already described in connection with the bed frame 55.

Fig. 13A and 13B show a further embodiment of a car seat 80, in which a pivot fitting 1 according to the application is used. The car seat consists of a seat part 81 and a backrest part 82, which are held together pivotably on opposite longitudinal sides via two pivot fittings 1. The first pivot rod 3 is connected to the seat part 81 and the second pivot rod 4 is connected to the backrest part 82. The pivot fitting 1 can be brought into the unlocked position via the operating lever 7 and the backrest part 82 can be adjusted relative to the seat part 81.

List of reference numerals

1. Pivoting fitting

2. Bearing element

2a,2b plate

3. Pivoting lever

4. Pivoting lever

5. An axis line

6. An axis line

7. Operating element

8. Shaft bolt

9. Pin

10. Stop piece

11. Stop piece

13. Elongated hole

14. Locking element

15. An opening

16. An opening

17. Elongated hole

18. Elongated hole

19. Tooth part

20. Tooth part

21. Locking part

22. Concave part

23. Guide pin

27. Tab

29. Gasket ring

30. Eccentric wheel

31. An opening

32. Guide cam

40. Spring

41. End portion

50. Slat frame

51. Seat component

52. Backrest part

53. Support element

54. Bearing pedestal

55. Bed frame

56. Housing part

57. Rod

58. Mattress with a mattress body

59. Rod

60. Furniture with a cover

61. Seat component

62. Backrest part

70. Garden furniture

71. Seat component

72. Backrest part

73. Cushion pad

74. Frame

80. Automobile seat

81. Seat component

82. A backrest member.

Claims (16)

1. A pivot fitting (1) having a bearing element (2) on which a first pivot rod (3) and a second pivot rod (4) are rotatably mounted about axes (5, 6) spaced apart from each other, the first pivot rod (3) and the second pivot rod (4) being engaged with each other on sides facing each other and rotatable together, characterized in that a movable locking element (14) is provided on the bearing element (2), which locking element is movable between a locking position locking the first pivot rod (3) and the second pivot rod (4) and an unlocking position unlocking the first pivot rod (3) and the second pivot rod (4), in which unlocking position the first pivot rod (3) and the second pivot rod (4) are rotatable and the locking element (14) is manually movable from the locking position to the unlocking position by means of an operating element (7).

2. Pivot fitting according to claim 1, characterized in that the locking element (14) is displaceably and/or pivotably mounted on the bearing element (2).

3. A pivot fitting according to claim 1 or 2, characterized in that the locking element (14) comprises a first locking portion (21) engageable with the first pivot lever (3) for locking and a second locking portion (21) engageable with the second pivot lever (4) for locking.

4. A pivot fitting according to any of the preceding claims, characterized in that the operating element (7) is pretensioned into a locking start position.

5. Pivot fitting according to any of the preceding claims, characterized in that the operating element (7) is designed as a pivotable lever.

6. A pivot fitting according to claim 5, characterized in that the pivot lever is rotatable in both directions from an initial position to move the locking element (14) to the unlocked position.

7. A pivot fitting according to any of the preceding claims, characterized in that on the locking element (14) an eccentric (30) is rotatably mounted in a recess (22) and is movable along a cam guide to move the locking element (14).

8. A pivot fitting according to any of the preceding claims, characterized in that at least one stop (10, 11) is provided to limit the rotational movement of one of the two pivot rods (3, 4).

9. The pivot fitting according to any of the preceding claims, characterized in that the bearing element (2) comprises two plates (2 a,2 b), between which the pivot rod (3, 4) is arranged.

10. Pivot fitting according to any of the preceding claims, characterized in that a spring (40), in particular a coil spring, is provided for pretensioning the operating element (7).

11. The pivot fitting according to any of the preceding claims, characterized in that the first pivot lever (3) and the second pivot lever (4) are coupled to each other via teeth (19, 20).

12. Pivot fitting according to claim 11, characterized in that the teeth (19, 20) are each arranged in the form of a ring segment around the openings (15, 16) of the first pivot rod (3) and the second pivot rod (4).

13. Pivot fitting according to claim 11 or 12, characterized in that the locking element (14) comprises two locking parts (21) with teeth that can engage with the teeth (19, 20) of the first pivot lever (3) and the second pivot lever (4).

14. A sitting or lying device (50, 60, 70, 80) comprising a seat part (51, 61, 71, 81) and a backrest part (52, 62, 72, 82), which are connected to each other via at least one pivot fitting (1) according to any of the preceding claims.

15. A sitting or lying arrangement according to claim 14, characterized in that the seat part (51, 61, 71, 81) and the backrest part (52, 62, 72, 82) are connected to each other via two pivot fittings (1) which are synchronized with each other via a bar (57).

16. A sitting or lying arrangement according to claim 15, characterized in that the bar (57) is coupled to two operating elements (7) in a rotationally fixed manner.