Rotating accessories and furniture

Abstract

The invention relates to a swivel fitting (1), in particular for an adjustment part (82) on a piece of furniture (8), comprising: a first rod (2) rotatably mounted on a bearing shaft (6); a fixing mechanism (7), by which the rod (2) can be fixed in different angular positions within a predetermined angle (α) relative to the bearing shaft (6); a spring (4) for transmitting torque between the rod (2) and the bearing shaft (6), wherein a first end (41) of the spring (4) is coupled to the rod (2) and a second end (42) of the spring (4) is non-rotatably coupled to the bearing shaft (6). Furthermore, the invention relates to a piece of furniture (8) having such a swivel fitting (1).

Description

Technical Field

[0001] The invention relates to a rotating accessory, which is particularly used for an adjusting part on a piece of furniture. The invention also relates to a piece of furniture. Background Art

[0002] Such swivel fittings are used in furniture, in particular in upholstered furniture, such as sofas, armchairs or beds, in order to be able to swivel different adjustment parts relative to the furniture body, such as armrests, headrests, etc. Such swivel fittings usually have a locking or latching mechanism, which allows to fix such swivel fittings in intermediate states.

[0003] Depending on the arrangement of the swivel fitting on the piece of furniture, it may happen that, due to the abutment of the adjusting part on another part of the furniture, the thickness of the padding of the adjusting part and / or of the furniture body exerts an undesirable torque on the swivel fitting, whereby the swivel fitting, limited by the tensioning of the padding, reaches an undesirable intermediate position and becomes latched or locked in this intermediate position.

[0004] In order to solve this problem, it is known from DE 10 2012 100 443 B3 to use a spring in the cap of the rod head of the first or second rod, which spring transmits the force to one of the rods.

[0005] A first end of the spring is supported in a side of the cover, which first end is in turn non-rotatably coupled to the first rod, while a second end of the spring is non-rotatably coupled to the second rod.

[0006] The problem is that in some swivel fittings only a single swivel rod is provided, and the adjustment part of the furniture to be swivel relative to the swivel rod is connected to the bearing shaft, in which case one end of the spring must be supported on the adjustment part of the furniture, which makes assembly very time-consuming. Summary of the invention

[0007] The object of the invention is to further develop a swivel fitting of the generic type in such a way that no second rod is required to support the spring.

[0008] This object is achieved by a swivel fitting having the features described in the present invention.

[0009] This object is further achieved by a piece of furniture having the features described by the invention.

[0010] The swivel fitting according to the invention has a first lever which is rotatably mounted on a bearing shaft.

[0011] The swivel fitting also has a fixing mechanism, by means of which the rod can be fixed in different angular positions relative to the bearing axis within a predetermined angle.

[0012] The swivel fitting also has a spring for transmitting torque to the rod.

[0013] Wherein a first end of the spring is non-rotatably coupled to the rod, and a second end of the spring is non-rotatably coupled to the bearing shaft.

[0014] By means of a swivel fitting designed in this way, it can be designed with one or two rods, since the spring is coupled to one rod on the one hand and to the bearing shaft on the other hand.

[0015] A coupling to a second rod or a separate furniture element can thereby be avoided.

[0016] Advantageous embodiments of the invention are subject matter of the dependent claims.

[0017] According to an advantageous variant of the invention, a support element projects from the side of the first rod facing the spring, to which support element the first end of said spring is coupled.

[0018] According to a variant, the support element can be designed as a pin protruding in the direction of the spring.

[0019] It is also conceivable that the support element is designed as a portion of the rod head of the rod protruding in the direction of the spring. This portion can be bent out of the material of the rod head or formed integrally on the rod head.

[0020] It is also conceivable to additionally use components already present on the swivel fitting as supporting elements.

[0021] In particular, the support element is designed as the end of a fastening bolt of a latching pawl of the fixing mechanism which is rotatably mounted on the first lever and which protrudes in the direction of the spring. The latching pawl engages with the toothing of the bearing shaft in the latched position of the swivel fitting for non-rotatably fixing the second lever or the furniture part which is rotatable relative to the first lever.

[0022] According to another embodiment variant, the bearing shaft has a central opening in which a bolt is accommodated.

[0023] The second end of the spring is preferably designed as a polygonal receiving portion.

[0024] According to an advantageous development of the invention, the bolt has a first neck portion designed in a polygonal shape, which is received in a rotationally fixed manner in a second end of the spring portion designed in a polygonal shape.

[0025] According to an advantageous improvement, the bolt has a second neck designed as a polygon, which is non-rotatably received in the central opening of the bearing shaft designed as a polygonal receiving portion. Therefore, the second end of the spring is non-rotatably coupled to the bearing shaft by the bolt in a simple manner.

[0026] According to another embodiment variant, a polygon is formed on the bearing shaft in the extension of the central opening and is received in a non-rotatable manner in the second end of the spring designed as a polygonal receptacle.

[0027] This also provides in a simple manner a non-rotatable coupling of the second end of the spring to the bearing shaft.

[0028] In an advantageous development of this embodiment variant, the screw has a cylindrical neck which is received in a cylindrically designed central opening of the bearing shaft and in this case serves only to axially fix the spring on the rotary fitting.

[0029] The piece of furniture according to the invention comprises a main body and an adjusting part rotatably held on the main body, and is distinguished in that the adjusting part is fixed to the main body by at least one swivel fitting as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred exemplary embodiments are explained in more detail below with reference to the accompanying drawings, in which:

[0031] Figure 1 shows a schematic perspective exploded view of a first embodiment variant of a swivel fitting according to the invention having a first lever and a second lever,

[0032] Figure 2 A top view of a first rod is shown, with the cover of the rod head omitted to show the bearing shaft and part of the fixing mechanism,

[0033] Figure 3 Shown according to Figure 1 A side cross-sectional view of a rotating accessory,

[0034] Figure 4 A perspective view showing a variant of a spring and a bolt which fixes the spring axially on a first rod,

[0035] Figure 5 Shows the corresponding Figure 1 A perspective exploded view of a second embodiment variant of the swivel fitting according to the invention with an alternative design of the bolt and the bearing shaft,

[0036] Figure 6 Shows the corresponding Figure 3 The basis Figure 5 A cross-sectional view of a rotating accessory,

[0037] Figure 7 A perspective view showing another embodiment variant of a swivel fitting according to the invention having only one lever,

[0038] Figure 8Shows the corresponding Figure 6 The basis Figure 7 Illustration of a rotating accessory,

[0039] Fig. 9 Shows the corresponding Figure 1 A perspective exploded view of a further alternative embodiment variant of a swivel fitting according to the invention with two levers,

[0040] Fig.10 Shown according to Fig. 9 Top view of the rotating assembly with the spring mounted on it.

[0041] Fig.11 Shows the corresponding Figure 1 A perspective exploded view of a further alternative embodiment variant of a swivel fitting according to the invention having two rods,

[0042] Fig.12 Shows the corresponding Figure 3 The basis Fig.11 A side cross-sectional view of a rotating accessory,

[0043] Fig.13 and Fig.14 Shown corresponding to Fig.11 and Fig.12 A view of another embodiment variant of the swivel fitting according to the invention having only one lever, and

[0044] Fig.15 It is a perspective view of a piece of furniture. DETAILED DESCRIPTION

[0045] In the following description of the drawings, terms such as top, bottom, left, right, front, rear, etc. particularly relate to the exemplary description and position of the selected rotating fitting, first rod, bearing shaft, fixing mechanism, spring, etc. in the respective drawings. These terms should not be understood as limiting, i.e., these terms may be changed due to different working states or mirror-symmetrical designs, etc.

[0046] In the drawings, reference numeral 1 denotes an embodiment variant of a swivel fitting according to the invention. All embodiment variants of this swivel fitting 1 are intended in particular to be used with respect to Fig.15 The adjusting part 82 of the furniture body 81 of the furniture 8 is shown by way of example.

[0047] Despite Figures 1 to 6 and Figures 9 to 12 The embodiment variant of the swivel fitting 1 shown in FIG. 1 has rods 2 and 3 that are rotatable relative to one another, but in Figure 7 and Figure 8 , Fig.13 and Fig.14The embodiment variant of the swivel fitting 1 shown in FIG. 1 is equipped with only one lever 2 .

[0048] In all embodiment variants, the lever arm 21 of the first lever 2 (and the lever arm 31 of the second lever 3 , if present) has a plurality of holes through which screws pass for fastening the levers 2 , 3 to a relatively rotatable part of the piece of furniture 8 .

[0049] In all the embodiment variants shown, the first rod 2 is formed in two layers, wherein a fixing mechanism 7 , for example in the form of a latching mechanism, is accommodated between the rod heads 22 of the first rod 2 bent apart from one another.

[0050] In such applications, an embodiment without such a fixing mechanism is also possible.A single-layer embodiment of the first rod 2 is also conceivable.

[0051] exist Figures 1 to 4 The first variant of the rotary fitting 1 according to the invention shown in FIG. 1 has, in addition to the first lever 2 , a second lever 3 , a spring 4 , preferably in the form of a helical spring, which is arranged via a bolt 5 on the side of the rod head 22 of the first rod 2 facing away from the second rod 3 .

[0052] The bolt 5 has a head 54 which bears against the outer side of the spring 4 facing away from the first rod 2. In the embodiment shown here, the bolt neck comprises a cylindrical neck 51 and two polygonal necks 52, 53 which, in the assembled state, pass through the second end 42 of the spring designed as a polygonal receptacle, the opening 63 of the bearing shaft 6 and the opening in the washer 12, wherein the bolt 5 and the washer 12 axially fix the components of the rotary fitting 1 to the first rod 2 and the rotation axis D of the bearing shaft 6. The head 54 of the bolt 5 covers at least the second end 42 of the spring 4 designed as a polygonal receptacle.

[0053] The bearing shaft 6 partially housed in the rod head 22 has first radial teeth 61 for non-rotatable fixation in the toothing 32 of the second rod 3 and second radial teeth 62 housed in the rod head 22 and coupled to the fixing mechanism 7 .

[0054] The fixing mechanism 7 is used to fix the first rod 2 relative to the bearing shaft 6 at different angular positions within a predetermined angle α.

[0055] For a more detailed description of such a fixing mechanism 7 designed as a ratchet mechanism, reference is made here to DE 10 2017110247 A1.

[0056] Other designs of such a fixing device 7 are also conceivable. For example, instead of radial teeth 61, axial teeth can also be used as a form fit that can be engaged between the components. Clamping devices based on friction engagement are also conceivable.

[0057] In order to fix the first end 41 of the spring 4 on the rod 2 , a support element 11 designed as a pin projects from the rod head 22 .

[0058] The first end 41 of the spring 4 , which is designed here as a helical spring, has the form of a hook with an angled end piece 43 , or in the form of an arc-shaped outlet which engages around the support element 11 in the functional position.

[0059] The second end 42 of the spring 4 is designed here as a polygonal receptacle, in which the first neck 53 of the screw 5 designed in a polygonal manner is accommodated.

[0060] like Figure 3 As further shown, the second neck portion 52 of the bolt 5 is also designed in a polygonal shape, and is non-rotatably received in a central opening 63 of the bearing shaft 6 which is designed in a polygonal receiving portion.

[0061] Therefore, the second end 42 of the spring 4 is non-rotatably connected to the bearing shaft 6, and the first end 41 of the spring 4 is supported on the support element 11 on the first rod 2, thereby counteracting the corresponding torque of the unwanted rotation of the first rod 2 relative to the bearing shaft 6 and the torque of the second rod 3 non-rotatably arranged on the bearing shaft 6.

[0062] As an alternative to a pin which is fixed to the rod head 22 with the support element 11 , it is also conceivable, depending on the design of the rotational fitting, to use a component which is already present on the rotational fitting 1 as the support element 11 .

[0063] Figure 2 The exemplary fixing mechanism 7 shown in FIG. 7 has two latching pawls 71 , 72 , which are rotatably mounted on the rod head 22 of the first rod 2 via fixing screws.

[0064] One of these fixing bolts extends outwards through a hole in the rod head 22 in the direction of the spring 4 , thereby forming a support element 11 for the first end 41 of the spring 4 .

[0065] The latching pawls 71 , 72 serve to secure the rotary fitting 1 in a predetermined locking position or to release the bearing shaft 6 relative to the first lever 2 during a return movement of the rotary fitting 1 .

[0066] and Figures 1 to 4 The embodiment variants of the swivel fitting shown are different, in that Figure 5 and Figure 6 In the swivel fitting shown, the bolt 5 is formed with a head 54 and a cylindrical neck 51 .

[0067] In order to fix the second section 42 of the spring 4 to the bearing shaft 6 in a non-rotatable manner, a polygon 64 formed on the bearing shaft 6 protrudes from the rod head 22 of the first rod 2 in an extension of the central opening 63 and is non-rotatably accommodated in the end 42 of the spring 4 formed in the polygonal accommodation portion.

[0068] In this case, the bolt 5 serves only to fix the spring 4 axially on the first rod 2 .

[0069] The end of the bearing shaft 6 facing away from the spring 4 is in turn non-rotatably connected to the second rod 3 via the first radial teeth 61. Figure 6 shown.

[0070] Figure 7 and Figure 8 An embodiment of a swivel fitting 1 having only the first rod 2 is shown.

[0071] The bearing shaft 6 projects from the rod head 22 on the side of the first rod 2 facing away from the spring 4 so that radial teeth 61 are located outside the rod head 22 so that corresponding coupling members of an adjustment part of the furniture can be directly connected to them.

[0072] In addition, this variant corresponds to reference Figure 5 and Figure 6 Embodiment variants of the swivel fitting 1 are described.

[0073] Fig. 9 and Fig.10 The embodiment variant of the swivel fitting 1 shown corresponds essentially to Figures 1 to 4 Embodiment variant shown.

[0074] and Figure 1 Unlike the embodiment variant shown, the support element 11 is designed as a pin which projects in the direction of the spring 4 and is mounted on the rod head.

[0075] In principle, it is also conceivable to design the support element 11 as a part of the rod head 22 of the rod 2 that protrudes in the direction of the spring 4 .

[0076] In addition, the polygon 65 of the bearing shaft 6 designed as a polygon or a toothed ring protrudes from the rod head 22 in the direction of the spring 4. The central opening 63 of the bearing shaft 6 is again designed as a polygon, especially a quadrilateral, and is used to accommodate the second neck 52 of the bolt 5 designed as a quadrilateral.

[0077] exist Fig.10 FIG. 4 shows by way of example that the first end 41 of the spring 4 is coupled to the support element 11 on the rod head 22 of the first rod 2 via a bent end piece 43 .

[0078] Fig.11 and Fig.12The further embodiment of the swivel fitting 1 shown shows two lever arms 2, 3, which correspond to Fig. 9 and Fig.10 The embodiment of the swivel fitting 1 is shown.

[0079] The bearing shaft 6 also has an end piece 64 on its end facing the spring 4, which has the shape of a polygonal accommodating portion suitable for the second end 42 of the spring 4 and is connected to the bearing shaft 6 and is designed as a polygon or a toothed ring. The polygon 65 protrudes from the rod head 22 of the first rod 2 in the direction of the spring.

[0080] at last, Fig.13 and Fig.14 An embodiment variant of the swivel fitting 1 according to the invention is shown, which corresponds substantially to Fig.11 and Fig.12 The embodiment variant shown only does not have the second rod 3 .

[0081] Fig.15 An exemplary structure of a piece of furniture 8 , a main body 81 , and an adjustment portion 82 rotatably held on the main body 81 is shown. The adjustment portion 82 is rotatably held on the main body 81 of the furniture 8 by such a rotating fitting 1 .

[0082] Reference numerals list

[0083] 1 Rotating accessory

[0084] 2 First Shot

[0085] 21 Lever arm

[0086] 22 Club Head

[0087] 3 Second shot

[0088] 31 Lever arm

[0089] 32 Ring gear

[0090] 4 Spring

[0091] 41 First End

[0092] 42 Second End

[0093] 43 End pieces

[0094] 5 Bolts

[0095] 51 Neck

[0096] 52 Neck

[0097] 53 Neck

[0098] 54 Head

[0099] 6 Bearing shaft

[0100] 61 Radial teeth

[0101] 62 Radial teeth

[0102] 63 Opening

[0103] 64 polygons

[0104] 65 polygons

[0105] 7 Fixing mechanism

[0106] 71 Latch claw

[0107] 72 Latch claw

[0108] 8 Furniture

[0109] 81 furniture body

[0110] 82 Adjustment section

[0111] 11 Support elements

[0112] 12 Washer

[0113] D axis

[0114] V Adjustment direction

[0115] R Reset direction.

Claims

1. A rotating accessory (1), used as an adjustment part on furniture, comprising: - a first rod (2) rotatably mounted on a bearing shaft (6), - a fixing mechanism (7), by means of which the first rod (2) can be fixed in different angular positions within a predetermined angle α relative to the bearing shaft (6), - a spring (4) for transmitting torque to said first rod (2), It is characterized in that - the first end (41) of the spring (4) is non-rotatably connected to the first rod (2), and the second end (42) of the spring (4) is non-rotatably connected to the bearing shaft (6), a support element (11) protruding from the side of the first rod (2) facing the spring (4), the first end (41) of the spring (4) being coupled to the support element (11), - wherein the latching claw (72) of the fixing means (7) rotatably mounted on the first rod (2) in the stop position of the swivel fitting (1) engages with the teeth (61, 62) of the bearing shaft (6) in order to non-rotatably fix the second rod (3) or the furniture part which is rotatable relative to the first rod (2), - wherein the support element (11) is designed as a pin protruding in the direction of the spring (4), as a part of the rod head (22) of the first rod (2) on the spring (4), or as the end of a fixing bolt of a latching claw (72) of the fixing mechanism (7) rotatably mounted on the first rod (2).

2. The rotating accessory according to claim 1, characterized in that: The bearing shaft (6) has a central opening (63) in which the bolt (5) is accommodated.

3. The rotating accessory according to claim 1, characterized in that: The second end (42) of the spring (4) is designed as a polygonal receiving portion.

4. The rotating accessory according to claim 2 or 3, characterized in that: The bolt (5) has a first neck portion (53) designed as a polygon, and the first neck portion (53) is non-rotatably received in a second end (42) of the spring (4) designed as a polygonal receiving portion.

5. The rotating accessory according to claim 4, characterized in that: The bolt (5) has a second neck (52) designed as a polygon, which is non-rotatably received in a central opening (63) of a polygonal receiving portion of the bearing shaft (6).

6. The rotating accessory according to claim 2 or 3, characterized in that: A polygon (64) is formed on the bearing shaft (6) in the extension of the central opening (63), and the polygon (64) accommodates the second end (42) of the spring (4) in a polygonal accommodation in a non-rotatable manner.

7. The rotating accessory according to claim 6, characterized in that: The bolt (5) has a cylindrical neck (51) which is received in a cylindrically designed central opening (63) of the bearing shaft (6).

8. A piece of furniture (8), comprising a main body (81) and an adjusting portion (82) rotatably held on the main body (81), characterized in that: The adjustment portion (82) is fixed to the body (81) by means of at least one swivel fitting (1) according to any one of the preceding claims.

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