Translation / rotation fitting

Abstract

A translation / rotation fitting for the at least partially positively guided simultaneous translation / rotation movement of a first basic structure (11) relative to a second basic structure (12) in one of two opposite directions of rotation (R1, R2) and in a predetermined direction of translation (A) has a first fitting plate (2) which can be fastened to the first basic structure (11); a second fitting plate (3) which can be fastened to the second basic structure (12) and can be moved simultaneously in translation and rotation with respect to the first fitting plate (2); a linear guide (6) which is arranged on the first fitting plate (2) and has at least one first rail (61), arranged in a fixed position with respect to the first fitting plate (2), and one second rail (62) which is movable relative to the first rail (61) in a direction of translation (A); a rotary bearing (7) having a first rotary bearing portion (71) arranged in a fixed position on the at least one second rail (62), a second rotary bearing portion (72) arranged on the second fitting plate (3), and a rolling or sliding bearing (5) arranged between the rotary bearing portions (71, 72), wherein the two rotary bearing portions (71, 72) are fixed relative to each other, in a direction (z) perpendicular to the translation / rotation movement, by at least one retaining element (4) which can be fastened to one of the fitting plates (2, 3). A furniture or household appliance element (10) is also described.

Description

[0001] T ranslation rotation fitting

[0002] The present invention relates to a translation-rotation fitting for at least partially forced simultaneous translation-rotation movement of a first body relative to a second body according to the preamble of claim 1

[0003] The invention further relates to a furniture or household appliance element according to the preamble of claim 10.

[0004] A generic translation-rotation fitting is known, for example, from WO 2022 / 157295 A1. It serves to move a first body relative to a second body in an at least partially forced, simultaneous translation-rotation movement in one of two opposite directions of rotation and in a predetermined translation direction relative to each other.

[0005] Such a translation-rotation fitting has proven itself in practice.

[0006] For the assembly of the translation-rotation fitting, which essentially consists of a first fitting plate, a second fitting plate with a linear guide arranged thereon and a pivot bearing arranged between the fitting plates, a guide carriage is used in the translation-rotation fitting known from the prior art for the axial coupling of the fitting halves, ie in a direction perpendicular to the plane of movement.

[0007] The object of the present invention is therefore to provide a translation-rotation fitting in which the fitting plates are held together in an alternative manner in the vertical direction.

[0008] The stated object is achieved by a translation-rotation fitting having the features of claim 1. The translation-rotation fitting according to the invention for the at least partially forced simultaneous translation-rotation movement of a first body relative to a second body in one of two opposite directions of rotation and in a predetermined translation direction has a first fitting plate attachable to the first body and a second fitting plate attachable to the second body and simultaneously movable translationally and rotationally relative to the first fitting plate.

[0009] The translation-rotation fitting further comprises a linear guide arranged on the first fitting plate with at least one first rail arranged fixedly to the first fitting plate and a second rail displaceable relative to the first rail in a translation direction.

[0010] The translation-rotation fitting further comprises a pivot bearing with a first pivot bearing section arranged in a fixed position on the at least one second rail, a second pivot bearing section arranged on the second fitting plate and a rolling or sliding bearing arranged between the pivot bearing sections.

[0011] The two pivot bearing sections are fixed relative to each other in a direction perpendicular to the translational-rotational movement by at least one holding element that can be fastened to one of the fitting plates.

[0012] With the aid of such a holding element, a vertical fixation of the components of the translation-rotation fitting can be carried out in a simple manner while maintaining the rotational mobility of the two pivot bearing sections relative to each other.

[0013] Advantageous embodiments of the invention are the subject of the subclaims.

[0014] According to an advantageous embodiment of the invention, the first pivot bearing section has a bearing ring with a rolling surface and a projection formed radially on the outside of the rolling surface.

[0015] According to a preferred embodiment of the invention, the second pivot bearing section has an annular groove arranged in the base plate. The annular groove has a rolling surface and at least one opening in a radially outer inner edge of the annular groove, through which the at least one retaining element extends into an undercut formed by the projection.

[0016] This makes it possible for the holding element to be supported on the one hand on the projection of the first pivot bearing section and on the other hand in the radially outer region of the annular groove of the second pivot bearing section and thus to fix the two pivot bearing sections to one another in a form-fitting manner perpendicular to the translation-rotation movement of the translation-rotation fitting.

[0017] According to a preferred embodiment, the holding element is designed as a holding plate.

[0018] Particularly preferably, at least three, in particular four such holding elements are provided for the positive fixing of the two pivot bearing sections.

[0019] In the mounted state, the at least one holding element is preferably received in a pocket of the second fitting plate.

[0020] According to a further preferred embodiment, the at least one holding element can be pre-assembled on the second fitting plate, which facilitates the assembly of the translation-rotation fitting.

[0021] The at least one holding element preferably has a locking tongue which can be locked in a locking recess of the second fitting plate by advancing the holding element radially in the direction of the bearing ring of the first pivot bearing section.

[0022] This makes it possible to permanently connect the two fitting plates over the entire service life.

[0023] To simplify the installation of the retaining element, a ramp is formed radially outside the locking recess in the second fitting plate, in which the locking tongue rests before the retaining element is pushed forward into its locking position.

[0024] The furniture or household appliance element according to the invention comprises a first body and a second body movable relative thereto, as well as a translation-rotation fitting with which the first body can be moved relative to the second body in a predetermined translation direction and simultaneously in one of two possible opposite rotation directions.

[0025] The furniture or household appliance element is characterized by a translation-rotation fitting as described above.

[0026] Preferred embodiments of the invention are explained in more detail below with reference to the accompanying drawings. They show:

[0027] Figure 1 is a schematic isometric view of an embodiment of a translation-rotation fitting according to the invention,

[0028] Figure 2 is a schematic isometric partial exploded view of the translation-rotation fitting shown in Figure 1,

[0029] Figure 3 is another partial exploded view of the translation-rotation fitting shown in Figure 1 from a different perspective,

[0030] Figure 4 is an isometric sectional view of the assembled pivot bearing sections of the translation-rotation fitting, fixed in the z-direction by a holding element,

[0031] Figure 5 is a plan view of the top side of the second fitting plate according to Figure 2 with retaining elements inserted into pockets, one of the retaining elements not yet being advanced into its retaining position,

[0032] Figure 6 is a representation corresponding to Figure 5, in which all holding elements are pushed forward into the holding position,

[0033] Figure 7 is a perspective view of a variant of a furniture or household appliance element with a translation-rotation fitting (not visible) inserted therein in a closed position of the second body, Figure 8 is a further perspective view of the furniture or household appliance element shown in Figure 7 with the second body moved from the closed position into a first intermediate position,

[0034] Figure 9 is a further perspective view of the furniture or household appliance element shown in Figure 7 with the second body moved from the first intermediate position into a second intermediate position, and

[0035] Figure 10 is a further perspective view of the furniture or household element shown in Figure 7 after the translational-rotational movement of the second body into an end opening position.

[0036] In the following description of the figures, terms such as top, bottom, left, right, front, rear, etc., refer exclusively to the exemplary representation and position of the translation-rotation fitting, the first fitting plate, the second fitting plate, the retaining element, the linear guide, the pivot bearing, and the like chosen in the respective figures. These terms are not to be understood as limiting; i.e., these references may change due to different working positions or the mirror-symmetrical design, etc.

[0037] In the following, the radial direction is understood to mean a direction in the plane of the translation-rotation movement perpendicular to the origin of the pivot bearing 7 described further below.

[0038] In Figures 1 to 3, reference numeral 1 denotes an embodiment variant of a translation-rotation fitting according to the invention.

[0039] In Figures 7 to 10, reference numeral 10 denotes an embodiment variant of a piece of furniture or household appliance element 10 according to the invention, in which such a translation-rotation fitting 1 can be advantageously used.

[0040] The translation-rotation fitting 1 serves for the at least partially forced simultaneous translation-rotation movement of a first body 11, preferably a piece of furniture or household appliance element 10, as shown by way of example in Figures 7 to 10, relative to a second body 12 in one of two opposite directions of rotation Ri, F and in a predetermined translation direction A. The second body 12 has at least one closed outer wall or intermediate wall and at least one shelf.

[0041] For this purpose, the translation-rotation fitting 1 has a first fitting plate 2 which can be fastened to a first body 11, in particular to a base 13 and / or to a cover 14 of the first body 11, and a second fitting plate 3 which can be fastened to the second body 12 and can be moved simultaneously in a translational and rotational manner relative to the first fitting plate 2.

[0042] In addition to a conventional first body with base 13, lid 14 and at least one side wall, the second body 12, which is mounted at least partially so as to be movable both translationally and rotationally at the same time, can be fixed directly to a room wall only via a base and a lid, wherein the base and lid in this case form the first body.

[0043] To illustrate the movement sequence of the second body 12 made possible by such a translation-rotation fitting 1, Figure 7 shows a closed position of the piece of furniture or household appliance element 10, Figure 8 shows a state in which the second body 12 has been moved from the closed position into a first intermediate position, Figure 9 shows a state in which the second body 12 has been moved further from the first intermediate position into a second intermediate position, and Figure 10 finally shows a state in which the second body 12 has been moved further from the second intermediate position into its final opening position, in which the second body has been rotated by a total of 180° relative to its closed position in the exemplary embodiment shown.

[0044] In principle, it is also conceivable that the second body was rotated in its final opening position relative to its closed position by a different angle, in particular 90° or 270°.

[0045] The translation-rotation fitting 1 further comprises a linear guide 6 arranged on the first fitting plate 2 with at least one, in the exemplary embodiment shown according to Figures 2 and 3, two first rails 61 and respective second rails 62 which can be displaced relative to the first rail 61 in a translation direction A. Furthermore, the translation-rotation fitting 1 comprises a pivot bearing 7 with a first pivot bearing section 71 arranged in a fixed position on the at least one second rail 62, a second pivot bearing section 72 arranged on the second fitting plate 3 and a rolling bearing 5 arranged between the pivot bearing sections 71, 72 (shown in Figures 2 and 3).

[0046] The rolling bearing 5 preferably consists of an annular cage 51 in which a plurality of rolling elements 52, balls in the illustrated embodiment, are held. Another design of the rolling elements is also conceivable, for example, in the form of rollers.

[0047] As an alternative to a rolling bearing, a plain bearing can also be used.

[0048] In order to fasten the first fitting plate 2 and the second fitting plate 3 to one another in the vertical direction Z after assembly, the two pivot bearing sections 71, 72 are fixed relative to one another by a holding element 4 in a direction z perpendicular to the translation-rotation movement, which in the embodiment shown takes place in an xy plane.

[0049] The first fitting plate 2 has, as can be seen for example in Figures 2 and 5, a base plate 21 to which the first rails 61 of the linear guide 6 are fastened.

[0050] Furthermore, on this base plate 21 there is a guide element 22, here in the form of a guide roller which is rotatable about a vertical axis, ie extending in the Z direction, and which, in the assembled state, is guided in a guide track 32 which is arranged, in particular formed, in a base plate 31 of the second fitting plate 3.

[0051] The second fitting plate 3 further comprises a flange 33 for connecting the fitting plate 3 to the second body 12, in which the second pivot bearing section 72, shown in Figure 3, is received.

[0052] The first pivot bearing section 71 has, as shown in Figures 2 and 4, a bearing ring 73 with a rolling surface 74, with the rolling elements 52 of the rolling bearing 5 rolling on the rolling surface 74. An annular projection 75 protrudes radially outward from an upper edge of the bearing ring 73, forming an undercut 76 relative to the cylindrical wall-shaped part of the bearing ring 73 located below it in Figure 2.

[0053] This projection 75 forms a first counter surface for the holding element 4.

[0054] The second pivot bearing section 72 has, in addition to the flange 33 already mentioned above, an annular groove 34 arranged in the base plate 31, in particular formed therein, a rolling surface 77 formed in the annular groove 34 and at least one opening 38, in the embodiment shown according to Figures 3, 5 and 6 four such openings 38 in a radially outer inner edge 79 of the annular groove 34.

[0055] This opening 38 serves to push the holding element 4 from a pocket 37 in the second fitting plate 3 through the opening 38 into the undercut 76 under the projection 75, as shown in Figure 4.

[0056] Since the projection 75 is part of the first pivot bearing section 71 fastened to the first fitting plate 2 and the opening 38 in the inner edge 79 of the annular groove 34 is part of the second fitting plate 3, after insertion of the at least one holding element 4, a movement of the first pivot bearing section 71 relative to the second pivot bearing section 72 in a direction z perpendicular to the translation-rotation movement of the translation-rotation fitting 1, which takes place in an xy plane, is blocked.

[0057] Each of the holding elements 4 has, as shown in Figure 3, a preferably flat base body 41. A locking tongue 42 is formed centrally in the base body 41 and is bent out of the plane of the base body 41.

[0058] First holding regions 43 are formed on opposite side edges of the base body 41, which, in the rusted state of the holding element 4, are inserted on the base plate 31 of the second fitting plate 3 under the vertical walls of the second fitting plate 3 delimiting the pocket 37.

[0059] A front second holding area 44, which extends in the plane of the base body 41, rests in the functional position of the holding element 4 on the underside of the projection 75 of the first pivot bearing section 71 and thus also blocks a movement of the first pivot bearing section 71 relative to the second pivot bearing section 72 in the z-direction.

[0060] As further shown in Figure 4, a locking recess 36 is provided in the base plate 31 of the second fitting plate 3 at the bottom of the pocket 37, into which the locking tongue 42 of the holding element 4 protrudes in the locked state.

[0061] Radially outside the locking recess 36, a ramp 35 is preferably formed in the base plate 31 of the second fitting plate 3, which receives the locking tongue 42 when the holding element 4 is inserted into the pocket 37.

[0062] To vertically secure the first fitting plate 2 to the second fitting plate 3, the first fitting plate 2 and the second fitting plate 3 are first placed on top of each other, ie brought together in the z-direction.

[0063] The rolling bearing 5 is then, as shown in Figure 4, received between the rolling surface 74 of the first pivot bearing section 71 and the rolling surface 77 of the second pivot bearing section 72.

[0064] Subsequently, the at least one retaining plate, four retaining plates in the embodiment shown, is inserted into respective pockets 37 of the second fitting plate 3.

[0065] In this state, the locking tongues 42 of the holding elements 4 rest on the ramp 35 of the base plate 31 of the second fitting plate 3.

[0066] Subsequently, the holding elements 4 are pushed radially inwards in the direction of the bearing ring 73 of the first pivot bearing section 71 through the openings 38 on the radially outer inner edge 79 of the annular groove 34, for example with a tool, a screwdriver or the like, until the second holding regions 44 of the holding elements 4 are pushed into the undercut 76 under the projection 75.

[0067] At the same time, the locking tongues 42 are simultaneously locked into the locking recesses 36 in the base plate 31 of the second fitting plate 3. Figure 5 shows a plan view of three of the four retaining elements 4 in the already rusted state. One of the retaining elements 4 in the lower right area is still in a position prior to the radial advancement of the retaining element 4 into the locking position.

[0068] Figure 6 shows the rusted position of all retaining elements 4.

[0069] After all the holding elements 4 have rusted in the pockets 37 of the second fitting plate 3 in their locking position, as shown in Fig. 4, the translation-rotation fitting 1 is completely assembled.

[0070] In principle, it is also conceivable to provide fewer or more than four holding elements 4.

[0071] List of reference symbols

[0072] 1 T ranslation rotation fitting

[0073] 2 first fitting plate

[0074] 21 Base plate

[0075] 22 Guide element

[0076] 3 second fitting plate

[0077] 31 Base plate

[0078] 32 guideway

[0079] 33 flange

[0080] 34 ring groove

[0081] 35 Ramp

[0082] 36 locking recess

[0083] 37 bag

[0084] 38 Opening

[0085] 4 Holding element

[0086] 41 basic bodies

[0087] 42 locking tongue

[0088] 43 first stopping area

[0089] 44 second holding area

[0090] 5 rolling bearings

[0091] 51 Cage

[0092] 52 rolling elements

[0093] 6 Linear guide

[0094] 61 first rail

[0095] 62 second rail

[0096] 7 pivot bearings

[0097] 71 first pivot bearing section

[0098] 72 second pivot bearing section

[0099] 73 Storage

[0100] 74 Rolling surface

[0101] 75 Overhang 76 Undercut

[0102] 77 Rolling surface

[0103] 79 inner edge

[0104] 10 Furniture or household appliance element

[0105] 11 first corpus

[0106] 12 second body

[0107] 13 Base 14 Cover x direction y direction z direction RI , R2Direction of rotation

[0108] A Translation direction

Claims

Claims 1 . Translation-rotation fitting (1) for at least partially forced simultaneous translation-rotation movement of a first body (11) relative to a second body (12) in one of two opposite directions of rotation (Ri, R2) and in a predetermined translation direction (A), comprising - a first fitting plate (2) attachable to the first body (11), - a second fitting plate (3) which can be fastened to the second body (12) and can be moved simultaneously in translation and rotation relative to the first fitting plate (2), - a linear guide (6) arranged on the first fitting plate (2) with at least one first rail (61) arranged in a fixed position relative to the first fitting plate (2) and a second rail (62) displaceable relative to the first rail (61) in a translation direction (A), - a pivot bearing (7) with a first pivot bearing section (71) arranged in a fixed manner on the at least one second rail (62), a second pivot bearing section (72) arranged on the second fitting plate (3) and a rolling or sliding bearing (5) arranged between the pivot bearing sections (71, 72), characterized in that - the two pivot bearing sections (71, 72) are fixed in a form-fitting manner relative to one another in a direction (z) perpendicular to the translational-rotational movement by at least one holding element (4) which can be fastened to one of the fitting plates (2, 3).

2. Translation-rotation fitting (1) according to claim 1, characterized in that the first pivot bearing section (71) has a bearing ring (73) with a rolling surface (74) and a projection (75) formed radially on the outside of the rolling surface (74).

3. Translation-rotation fitting (1) according to claim 2, characterized in that the second pivot bearing section (72) has an annular groove (34) arranged in the base plate (31), wherein the annular groove (34) has a rolling surface (77) and at least one opening (38) is provided in a radially outer inner edge (79) of the annular groove (34), through which opening the at least one holding element (4) extends into an undercut (76) formed by the projection (75).

4. Translation-rotation fitting (1) according to claim 1 or 2, characterized in that the holding element (4) is designed as a holding plate.

5. Translation-rotation fitting (1) according to one of the preceding claims, characterized in that at least three, in particular four holding elements (4) are provided for the positive fixing of the two pivot bearing sections (71, 72).

6. Translation-rotation fitting (1) according to one of the preceding claims, characterized in that the at least one holding element (4) is received in a pocket (37) of the second fitting plate (3) in the assembled state.

7. Translation-rotation fitting (1) according to one of the preceding claims, characterized in that the at least one holding element (4) can be pre-assembled on the second fitting plate (3).

8. Translation-rotation fitting (1) according to one of the preceding claims, characterized in that the at least one holding element (4) has a locking tongue (42) which can be locked in a locking recess (36) of the second fitting plate (3) by advancing the holding element (4) radially in the direction of the bearing ring (73) of the first pivot bearing section (71).

9. Translation-rotation fitting (1) according to claim 8, characterized in that a ramp (35) is formed in the second fitting plate (3) radially outside the locking recess (36), in which ramp the locking tongue (42) lies before the holding element (4) is pushed forward into its locking position.

10. Furniture or household appliance element (10), comprising - a first body (11) and a second body (12) movable relative to the first body, - a translation-rotation fitting (1 ) with which the first body (11 ) is movable relative to the second body (12) in a predetermined translation direction (A) and simultaneously in one of two possible opposite rotation directions (Ri, R2), characterized in that - the translation-rotation fitting (1) is designed according to one of the preceding claims.

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