Furniture item or domestic appliance

The design of a translation-rotation fitting with a cable guide system addresses the complexity of powering movable bodies in furniture and appliances, providing a simple and durable power supply solution.

WO2025219440A1PCT designated stage Publication Date: 2025-10-23PAUL HETTICH GMBH & CO KG
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Patent Information

Application Number
PCT/EP2025/060483
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-04-18
Filing Date
2025-04-16
Publication Date
2025-10-23

AI Technical Summary

Technical Problem

Existing furniture and household appliances with translation-rotation fittings face complexity in supplying electrical devices on movable bodies with electrical energy, particularly when they can move in both translational and rotational manners.

Method used

A furniture or household appliance design featuring a translation-rotation fitting with a first and second fitting plate, a clearance in the base or cover plate for a cable, and a guide rail system to smoothly guide a cable along the movable second body, ensuring power supply to electrical devices.

Benefits of technology

Enables a simple and retrofittable power supply to electrical devices on movable bodies, protecting the cable from mechanical damage and maintaining smooth movement.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure EP2025060483_23102025_PF_FP_ABST
    Figure EP2025060483_23102025_PF_FP_ABST
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Abstract

A furniture item or domestic appliance (1) has a first body (2), and a second body (3), movable relative to the first body, and at least one translation-rotation fitting (4) by means of which the second body (3) is movable relative to the first body (2) in a predetermined translation direction (A) and at least partially simultaneously in one of two possible opposite directions of rotation (R1, R2), wherein the at least one translation-rotation fitting (4) has a first fitting plate (21), which is coupled to the first body (2), and a second fitting plate (41), which is coupled to the second body (3) and is movable at least partially simultaneously in translation and rotation with respect to the first fitting plate, wherein, in an overlap region of a base plate (21) or cover plate (24) of the first body (2) with the second body (3), a clearance (22) is provided in the base plate (21) or cover plate (24) of the first body (2), through which clearance a cable (5) is guided, which cable is connected at a first end to a first power connection element (8) fastened to a side of the second body (3) or of the second fitting plate (41) facing the base plate (21) or cover plate (24) of the first body (2), wherein the cable (5) is fastened in or on a running carriage (7) guided movably along a running rail (62) and having a cable receptacle (73), wherein the running rail (62) is fastened to a side of the base plate (21) or cover plate (24) of the first body directed away from the second body (3), in such a way that, upon movement of the second body (3) relative to the first body (2), the cable (5) can be entrained in the clearance (22) by the running carriage (7).
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Description

[0001] Furniture or household appliance

[0002] The present invention relates to a furniture or household appliance according to the preamble of claim 1.

[0003] In the case of generic furniture or household appliances, a second body can be moved simultaneously in rotation and translation relative to a usually fixed first body.

[0004] For this purpose, a translation-rotation fitting is arranged between the first body and the second body, which is movable relative to the first body, with which the second body can be moved relative to the first body in a predetermined translation direction and at least partially simultaneously in one of two possible opposite rotation directions. Such a translation-rotation fitting is known, for example, from WO 2023 / 166145 A1.

[0005] Due to the possibility of movement of the second body relative to the first body, it is relatively complex to supply electrical devices housed in the movable second body with electrical energy.

[0006] For example, it is known from DE 8626571 U to guide a cable through a central column of a turntable arranged above a base.

[0007] However, with this turntable arrangement, the turntable above the base can only be moved in a rotational manner and not in both a rotational and translational manner.

[0008] The object of the present invention is to provide a piece of furniture or household appliance with a power supply for electrical devices mounted on or in the movable second body in a simple manner, which power supply can also be used with a second body that can be moved in a translational and rotational manner.

[0009] The stated object is achieved by a piece of furniture or household appliance having the features of claim 1. The piece of furniture or household appliance according to the invention comprises a first body and a second body movable relative thereto, as well as at least one translation-rotation fitting with which the second body can be moved relative to the first body in a predetermined translation direction and at least partially simultaneously in one of two possible opposite rotation directions.

[0010] The at least one translation-rotation fitting has a first fitting plate coupled to the first body and a second fitting plate coupled to the second body and movable at least partially simultaneously in translation and rotation relative to the first fitting plate.

[0011] In an overlapping area of ​​a base or cover plate of the first body with the second body, a clearance is provided in the base or cover plate of the first body, through which a cable is passed, which is connected at a first end to a first power connection element fastened to a side of the second body or the second fitting plate facing the base or cover plate of the first body.

[0012] The cable is fastened in or on a carriage with a cable holder that can be moved along a guide rail.

[0013] The guide rail is attached to a side of the base or cover plate of the first body facing away from the second body in such a way that when the second body moves relative to the first body, the cable can be moved along in the clearance by the carriage.

[0014] A piece of furniture with such power connection elements enables a simple and even retrofittable power supply to electrical devices placed on or in the second body.

[0015] Advantageous embodiments of the invention are the subject of the subclaims.

[0016] The cutout can be formed as an arcuate or straight groove, or as a circular cutout. According to an advantageous embodiment of the invention, the guide rail is positioned directly below the cutout in the base plate or above the cutout in the cover plate of the first body.

[0017] This allows for particularly smooth guidance of the current-conducting cable in the clearance of the first body.

[0018] According to another advantageous design variant, the clearance is congruent with the carriage's movement path determined by the guide rail. However, it is also conceivable to make the clearance larger than the carriage's movement path.

[0019] The congruent design of the geometry of the clearance with the guide rail in the housing also enables such smooth guidance of the cable in the clearance when the second body moves relative to the first body.

[0020] To guide the carriage in the housing, the carriage has at least one roller, plain bearing or ball guided in or on the guide rail.

[0021] In a first preferred embodiment, the rollers or the plain bearing are aligned vertically to the plane of the base or cover plate of the first body.

[0022] According to an alternative design variant, the rollers or plain bearings are aligned parallel to the plane of the base or cover plate of the first body.

[0023] According to a further embodiment, the guide rail is arranged in or on a housing.

[0024] The guide rail is preferably attached as a separate component in or on the housing.

[0025] The housing can be constructed in one or more parts and is preferably made of plastic. The guide rail can also be made of plastic. According to a preferred embodiment, the housing, the guide rail, and the carriage are designed as components of a second power connection element attached to the first body or the first fitting plate of the at least one translation-rotation fitting.

[0026] Such a unit can be easily mounted on the first body.

[0027] According to a further advantageous embodiment, the housing has an inlet opening for the cable. Furthermore, when assembled, the housing is essentially closed at the underside of the base plate or at the top of the cover plate of the first body, thus protecting the cable inside the housing from mechanical damage, dirt, or moisture.

[0028] According to an advantageous embodiment, the cable itself is at least partially surrounded by a protective material, particularly in an area between the carriage and the first power connection element.

[0029] This protects the cable in particular from high bending loads and from abrasion caused by movement in the clearance.

[0030] Preferred embodiments are explained in more detail below with reference to the accompanying drawings.

[0031] They show:

[0032] Figure 1 is a schematic isometric exploded view of a base plate of a first body, a second body, a translation-rotation fitting arranged between the first body and the second body, and power connection elements,

[0033] Figure 2 is a schematic isometric exploded view of the base plate of the first body, the translation-rotation fitting as well as the power connection elements and the cable,

[0034] Figure 3 is an isometric view of a housing of the second power connection element,

[0035] Figures 4-6 are isometric views of the translation-rotation fitting mounted on the base plate of the first body and the first power connection element to be attached to the second body with the cable connecting it to the second power connection element in different positions of the part of the translation-rotation fitting to be attached to the second body

[0036] Figure 7 is a perspective view of a variant of a piece of furniture or household appliance with a translation-rotation fitting (not visible) inserted therein in a closed position of the second body,

[0037] Figure 8 is a further perspective view of the furniture or household appliance shown in Figure 7 with the second body moved from the closed position into a first intermediate position,

[0038] Figure 9 is a further perspective view of the furniture or household appliance shown in Figure 7 with the second body moved from the first intermediate position into a second intermediate position, and

[0039] Figure 10 is a further perspective view of the furniture or household appliance shown in Figure 7 after the translational-rotational movement of the second body into an end opening position.

[0040] 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 first body, second body, translation-rotation fitting, power connection element, housing, 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.

[0041] Figure 1 shows partial elements of a piece of furniture according to the invention. One exemplary embodiment of such a piece of furniture 10 is shown in Figures 7-10. A translational-rotational fitting 4 shown in Figure 1 serves to at least partially force-guide the simultaneous translational-rotational movement of a second body 3, here in the form of a piece of furniture, in particular a cabinet or shelving unit, relative to a first body 2 in one of two opposite directions of rotation Ri, R2 and in a predetermined translational direction A.

[0042] The second body 3 has at least one closed side wall 33 or intermediate wall and at least one shelf 34 for placing at least one electrical device.

[0043] In one embodiment, a base plate 31 can act as a shelf 34. Alternatively, an electrical load, e.g., in the form of lighting, or a connection box, e.g., in the form of a power outlet, a USB connector, or the like, can be arranged in or on the second body 3.

[0044] Instead of the furniture 1 shown here, it is also conceivable that the first body 2 and the second body 3 are part of a household appliance.

[0045] The translation-rotation fitting 4 essentially consists of a first fitting plate which can be fastened to a base plate 21 of the first body 2 and a second fitting plate 41 which can be fastened to the second body 3 and which can be moved simultaneously in a translational and rotational manner relative to the first fitting plate.

[0046] A preferred embodiment of such a translation-rotation fitting 4 is described, for example, in WO 2023 / 166145 A1, to the description of which reference is hereby expressly made.

[0047] In the embodiment shown in Figure 1, the translation-rotation fitting 4 is arranged between the upper side of the base plate 21 of the first body 2 and the underside of the base plate 31 of the second body 3.

[0048] It is also conceivable to arrange a translation-rotation fitting alone or additionally between a cover plate 32 of the second body 3 and a cover plate 24 of the first body 2. The further description here refers to the embodiment shown in Figures 1 to 6, in which the translation-rotation fitting 4 is shown in the area of ​​the base plate 21 of the first body 2.

[0049] As further shown in Figures 1 and 2, in an overlapping area of ​​the base plate 21 of the first body 2 with the second body 3 in a closed position of the second body 3, a clearance 22 is provided in the base plate 21 through which a cable 5 is passed.

[0050] The cable 5, designed here as a power cable, is connected at a first end to a first power connection element 8 fastened to a side of the second body 3 facing the base plate 21 of the first body 2.

[0051] The cable 5 is fastened in or on a carriage 7 which is guided displaceably along a guide rail 62 and has a cable holder 73.

[0052] As shown in Figure 2, the guide rail 62 is fastened to a side of the base plate 21 of the first body facing away from the second body 3 in such a way that when the second body moves relative to the first body 2, the cable 5 can be moved in the clearance 22 by the carriage 7.

[0053] If the translation-rotation fitting 4 is arranged between the ceiling plate 32 of the second body 3 and the cover plate 24 of the first body 2, the guide rail 62 is correspondingly fastened to a side of the cover plate 24 facing away from the second body 3.

[0054] In the embodiment shown in Figures 2 and 3, the guide rail 62 is arranged in or on a housing 6.

[0055] The guide rail 62, the carriage 7 and the housing 6 are preferably designed as components of a second power connection element fastened to the first body 2 or the first fitting plate of the at least one translation-rotation fitting 4.

[0056] The carriage 7 and the guide rail 62 are shown in Figure 2 and Figure 3.

[0057] The housing 6 shown in an individual representation in Figure 3 is fastened to a side of the base plate 21 of the first body 2 facing away from the second body 3 in such a way that when the second body 3 moves relative to the first body 2, as shown in Figures 4 to 6 and Figures 7 to 10, the cable 5 is moved in the clearance 22 by the carriage 7 guided in the guide rail 62.

[0058] The guide rail 62 in the housing 6 is preferably positioned directly below the clearance 22 of the base plate 21 of the first body 2.

[0059] If the translation-rotation fitting 4 is arranged between the cover plate 32 of the second body 3 and the cover plate 24 of the first body 2, the guide rail 62 in the housing 6 is accordingly preferably positioned directly above the clearance 22 of the cover plate 24 of the first body 2.

[0060] In the embodiment shown in Figures 2 and 3, both the clearance 22 and the guide rail 62 are arc-shaped, in particular in the shape of a circular arc section.

[0061] As a result, the first power connection element 8, which is fastened to the underside of the base plate 31 of the second body 3 and which moves during the movement of the second body 3 relative to the first body 2, as shown in Figures 4 to 6, can be carried along virtually tension-free by sliding in the clearance 22 of the cable 5 without generating mechanical tension on the power cable 5.

[0062] The movement path of the carriage 7 determined by the guide rail 62 is preferably congruent with the clearance 22.

[0063] Depending on the cable length of the cable 5, it is also conceivable that the movement path of the carriage 7 deviates slightly from the shape of the clearance 22.

[0064] As can be clearly seen in Figures 2 and 3, the carriage 7 has at least two rollers 72 guided in the guide rail 62.

[0065] Instead of the rollers 72, it is also conceivable that the carriage 7 is equipped with plain bearings which can be guided in the guide rail 62.

[0066] The guide rail 62 runs along an inner edge of a housing wall 61 of the housing 6. The housing 6 is preferably designed as a whole in the shape of a trough in order to store a cable 5, which preferably leads through an inlet opening 63 into the interior of the housing 6, in a protected manner in the interior of the housing 6 between the housing walls 61 and the underside of the base plate 21 of the first body 2.

[0067] The cable 5 then extends from the interior space in the housing 6 through a cable receptacle 73 into a housing 71 of the carriage 7 and through a cable outlet 74 out of the carriage 7 and from there upwards in the direction of the first power connection element 8.

[0068] It is also conceivable to use several cable segments, wherein, for example, instead of the inlet opening 63 and / or the outlet opening 64 and / or the cable receptacle 73 on the housing 71 of the carriage 7, a plug-in connection element for connecting individual cable segments of the cable 5 is provided.

[0069] The height of the carriage 7 is preferably dimensioned such that the cable outlet 74 surrounding the cable protrudes into the clearance 22.

[0070] The first power connection element 8 essentially consists of a housing that accommodates the cable end of the cable 5 and is fixed to the underside of the base plate 31 of the second body 3. Alternatively, the first power connection element 8 can also be fixed to the movable second fitting plate 41.

[0071] From this power connection element 8, a further power cable can then extend into other areas of the second body 3 of the furniture 1 in order to supply power to electrical devices or consumers accommodated in the second body 3.

[0072] In the embodiment shown in Figures 2 and 3, the guide rail 62 in the housing 6 is aligned vertically to the plane of the base plate 21 of the first body 2.

[0073] A horizontal orientation of the guide rail 62 and, accordingly, also of the rollers 72 or plain bearings guided in or on the guide rail 62 is also conceivable. To further protect the cable 5 from crushing or breakage, the cable 5 is preferably at least partially surrounded by a protective material, such as a spiral spring, an abrasion-resistant hose, or the like, in an area between the carriage 7 and the first power connection element 8.

[0074] In principle, it is also conceivable to design the clearance 22 in a straight line.

[0075] In this case, the guide rail 62 in the housing 6 would also preferably be designed in a straight line.

[0076] In this case, the cable 5 would be extended between the cable outlet 74 of the carriage 7 and the first power connection element 8 so far that it can still follow the movement of the first power connection element 8 arranged on the base plate 31 of the second body 3 or the second fitting plate 41 of the translation-rotation fitting 4.

[0077] List of reference symbols

[0078] 1 furniture

[0079] 2 first corpus

[0080] 21 Base plate

[0081] 22 Postage paid

[0082] 24 Cover plate

[0083] 3 second body

[0084] 31 Base plate

[0085] 32 cover plate

[0086] 33 Side wall

[0087] 34 filing

[0088] 4 Translation-rotation fitting

[0089] 41 second fitting plate

[0090] 5 cables

[0091] 6 housings

[0092] 61 Housing wall

[0093] 62 guide rail

[0094] 63 Inlet opening

[0095] 7 carriages

[0096] 71 housings

[0097] 72 roller

[0098] 73 Cable holder

[0099] 74 Cable outlet

[0100] 8 first power connection element

[0101] Ri, R2 direction of rotation

[0102] AT translation direction

Claims

Claims 1 . Furniture or household appliance (1 ), comprising - a first body (2) and a second body (3) movable relative to the first body, - at least one translation-rotation fitting (4) with which the second body (3) can be moved relative to the first body (2) in a predetermined translation direction (A) and at least partially simultaneously in one of two possible opposite directions of rotation (Ri, R2), - wherein the at least one translation-rotation fitting (4) has a first fitting plate coupled to the first body (2) and a second fitting plate (41) coupled to the second body (3) and movable at least partially simultaneously in translation and rotation relative to the first fitting plate, - wherein in an overlapping area of ​​a base plate (21) or cover plate (24) of the first body (2) with the second body (3), a clearance (22) is provided in the base plate (21) or cover plate (24) of the first body, through which a cable (5) is passed, which is connected at a first end to a first power connection element (8) fastened to a side of the second body (3) or the second fitting plate (41) facing the base plate (21) or cover plate (24) of the first body (2), characterized in that - the cable (5) is fastened in or on a carriage (7) which is guided displaceably along a guide rail (62) and has a cable receptacle (73), - wherein the guide rail (62) is fastened to a side of the base plate (21) or cover plate (24) of the first body facing away from the second body (3) in such a way that when the second body (3) moves relative to the first body (2), the cable (5) in the clearance (22) can be moved by the carriage (7).

2. Furniture or household appliance (1) according to claim 1, characterized in that the guide rail (62) is positioned directly below the clearance (22) of the base plate (21) or above the clearance of the cover plate (24) of the first body (2).

3. Furniture or household appliance (1) according to claim 1 or 2, characterized in that the clearance (22) is congruent with a movement path of the carriage (7) determined by the guide rail (62).

4. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the carriage (7) has at least one roller (72), plain bearing or ball guided in or on the guide rail (62).

5. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the at least one roller (72) or the at least one sliding bearing is aligned vertically to the plane of the base plate (21) or cover plate (24) of the first body (2).

6. Furniture or household appliance (1) according to one of claims 1 to 4, characterized in that the at least one roller (72) or the at least one sliding bearing are aligned parallel to the plane of the base plate (21) or cover plate (24) of the first body (2).

7. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the guide rail (62) is arranged in or on a housing (6).

8. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the guide rail (62) is attached as a separate component in or on the housing (6) 9. Furniture or household appliance (1) according to claim 7 or 8, characterized in that the housing (6), the guide rail (62) and the carriage (7) are designed as components of a second power connection element fastened to the first body (2) or the first fitting plate of the at least one translation-rotation fitting (4).

10. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the cable (5) is at least partially surrounded by a protective material in a region between the carriage (7) and the first power connection element (8).

11. Furniture or household appliance (1) according to one of the preceding claims, characterized in that the carriage (7) has a cable outlet (74) which projects at least partially into the clearance (22).

Citation Information

Patent Citations

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    WO2023166145A1

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