Hinge

The hinge design addresses the aesthetic and functional issues of existing hinges by incorporating a front-accessible rotating element and adjustable components, enhancing adjustability and durability without compromising appearance.

WO2026002755A1PCT designated stage Publication Date: 2026-01-02HETTICH ONI
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Patent Information

Application Number
PCT/EP2025/067104
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-24
Filing Date
2025-06-18
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

Existing hinges for furniture with adjustable door positions require additional side windows for adjustment, which are aesthetically unappealing and prone to dirt accumulation, and result in thin material thickness that can tear.

Method used

A hinge design with a rotating element accessible from the front, eliminating the need for side windows, featuring a single pivot axis and adjustable components like worm gears and eccentrics for precise positioning, and incorporating a force storage device for controlled movement.

Benefits of technology

Provides improved accessibility and adjustability of the hinge components, ensuring robust and aesthetic integration into furniture while preventing material thinning and dirt accumulation.

✦ Generated by Eureka AI based on patent content.

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  • Figure EP2025067104_02012026_PF_FP_ABST
    Figure EP2025067104_02012026_PF_FP_ABST
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Abstract

A hinge (1) for furniture (100) comprises a stationary housing (4), which can be secured in a pocket of a lateral wall (101) and has a lateral part (2) and a hinge part (3), which can be secured to a door (102) and is held on at least one extension arm (20) of the lateral part (2) so as to be rotatable about a joint axis, said extension arm protruding from the housing (4). The lateral part (2) is adjustable relative to the housing in at least one spatial direction via a rotary part (15), said rotary part (15) being provided on the lateral part (2) side on which the at least one extension arm (20) protrudes from the housing (4). As a result, the rotary part (15) is accessible for an adjustment process when the hinge (1) is open.
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Description

[0001] hinge

[0002] The present invention relates to a hinge for furniture with a stationary housing that can be fixed in a pocket of a side wall, comprising a side part and a hinge part that can be fixed to a door, which is rotatably held about a joint axis on at least one extension of the side part projecting from the housing, wherein the side part is adjustable relative to the housing in at least one spatial direction via a rotating part.

[0003] EP 4 010 553 A1 discloses a hinge in which a side panel can be inserted into a pocket in the side of a piece of furniture. A hinge component, to which a door is attached, is rotatably mounted on the side panel. To adjust the position of the door, a recess is provided in the side panel, allowing access to eccentric cams on the side panel. By rotating the eccentric cams, the side panel can be adjusted relative to a housing. Adding an additional window to the side panel is problematic because milling a recess results in a thin material thickness at the pocket, making it prone to tearing. Furthermore, the window is visually unappealing, and dirt can accumulate in it.

[0004] It is therefore an object of the present invention to create a hinge which has an improved adjustment mechanism for adjusting the position of a hinge part.

[0005] This problem is solved with a hinge having the features of claim 1.

[0006] The hinge according to the invention for furniture comprises a stationary housing, which can be fixed in a pocket of a side panel, and a hinge element that can be attached to a door. The hinge element is rotatably held about a pivot axis on at least one extension of the side panel projecting from the housing. The side panel is adjustable relative to the housing in at least one spatial direction via a rotating element. The rotating element is arranged on the side of the side panel where the at least one extension projects from the housing. Preferably, the rotating element is located in the region of the at least one extension. This allows the rotating element to be positioned at a front edge of a side panel in the installed position and accessible from the front when the hinge is open, in order to perform an adjustment operation.The bracket for the rotatable mounting of the hinge component and the rotating component are arranged on the front of the side panel, eliminating the need for an additional side window in the side panel to allow adjustment of the rotating component. The hinge is designed as a single-joint hinge, in which the hinge component rotates around a single pivot axis relative to the side panel. In the installed position, the pivot axis of the hinge is preferably vertically oriented, but can also be inclined or horizontally oriented.

[0007] The rotating part preferably drives a rotatable adjusting element whose axis of rotation is oriented perpendicular to an axis of rotation of the rotating part. The two axes of rotation can, for example, be arranged at an angle between 60° and 120°, so that the direction of rotation of the adjusting element can be effectively used for adjustment. Preferably, the axis of rotation of the adjusting element is oriented essentially parallel to a short side of the end face of the side wall. The adjusting element can comprise a worm gear, an eccentric, or a thread. Preferably, the adjusting element comprises a worm gear that engages, for example, with the housing or the side panel via a guide. The adjusting element can engage with the rotating part via a toothed connection, so that a rotational movement of the rotating part results in a rotational movement of the adjusting element.

[0008] The rotating part is accessed when the door is (partially) open.

[0009] The rotating part can preferably protrude at least partially from the pocket in the side wall. This results in improved accessibility of the rotating part.

[0010] In a further embodiment, several rotating parts can be arranged one above the other or side by side on the side panel to drive various adjustment elements. This allows the side panel to be adjusted relative to the housing in several directions, particularly those orthogonal to each other.

[0011] The housing preferably has a guide element on which the side panel is slidably mounted. The at least one guide element can be designed as a guide pin that engages in an elongated hole in the side panel. Preferably, several guide elements are provided, for example, two to five guide elements, so that the side panel is guided stably and secured against rotation on the housing. Optionally, guide pins can also be provided on the side panel that engage in elongated holes in the housing. Furthermore, other guiding elements, such as guide ribs, can also be provided.

[0012] The side panel is preferably adjustable in height relative to the housing via the rotating part, i.e., it can be positioned vertically. Adjusting the side panel relative to the housing also adjusts the height of the hinge part and the door.

[0013] In a preferred embodiment, the housing comprises two housing shells which, in the hinge's installed position, have a vertical dividing plane. This allows the side panel to be efficiently mounted in the housing. Furthermore, the housing can be essentially box-shaped, with one or more mounting tabs projecting from it, into which fasteners can be inserted to attach the housing to the end face of the side wall. A support for the rotating part can be formed on the side panel, ensuring that the rotating part, and in particular a tool insert formed in the rotating part, is accessible when the hinge is open.

[0014] The hinge preferably includes a force storage device on the side part to pre-tension the hinge part towards a closed position within a tightening range. This pre-tensioning action engages a damping element, which decelerates the movement of the hinge part before it reaches the closed position. A movable drive element can be provided on the side part to actuate the damping element and the force storage device. This drive element is movable via a drive lever, which is pivotally connected to the drive element on one side and to the hinge part on the other, spaced apart from the pivot axis. Moving the hinge part thus displaces the drive element. The drive element can preferably be detachably coupled to a driver that travels along a guide track to actuate the force storage device and the damping element over a predetermined distance.This allows the hinge component to be influenced in its movement by the energy storage device and the damper within a tightening range, but it can also move freely when the drive element is decoupled from the follower. Optionally, the hinge component can be adjustable within a hinge cup, with one or more adjustment elements provided between the hinge cup and the hinge component. This allows the side panel to be adjusted relative to the housing in one spatial direction, while one or more additional adjustment elements between the hinge component and the hinge cup allow for adjustment in other spatial directions.

[0015] The hinge according to the invention is preferably mounted in a pocket of a side wall, with several hinges being arranged distributed along the height of the side wall. The pivot axis of the hinges is then preferably vertically oriented.

[0016] The invention is explained in more detail below with reference to an exemplary embodiment and the accompanying drawings. These show:

[0017] Figure 1 shows a perspective partial view of a piece of furniture with a hinge according to the invention;

[0018] Figures 2A and 2B show two views of the piece of furniture with the hinge of Figure 1 in different positions;

[0019] Figures 3A and 3B show two views of the hinge in different positions without furniture;

[0020] Figure 4 is an exploded view of the invention.

[0021] hinge;

[0022] Figure 5 shows a view of the hinge without the housing shell in an open position;

[0023] Figure 6 shows a view of the hinge of Figure 5 when the driver is coupled in at the beginning of the pull-out area;

[0024] Figure 7 shows a view of the hinge of Figure 5 in a

[0025] Closed position;

[0026] Figures 8A and 8B show two views with the hinge in an upper adjustment position; Figures 9A and 9B show two views with the hinge in a middle position.

[0027] Adjustment position;

[0028] Figures 10A and 10B show two views with the hinge in a lower adjustment position, and

[0029] Figures 11A to 11C show several views of the rotating part with the adjustment element for height adjustment.

[0030] A piece of furniture 100 comprises a furniture body with a side wall 101, to which at least one hinge 1 according to the invention is fixed and to which a door 102 is pivotably held. Preferably, several hinges 1 are mounted on the side wall 101.

[0031] In Figure 2A, the door 102 is arranged in a closed position on the side wall 101. The hinge 1 is arranged essentially flush with an end face of a frame or a panel-shaped door 102.

[0032] In Figure 2B, the door 102 is pivoted by the hinge 1 into a maximum opening position, for example, by an opening angle between 90° and 120°. The hinge part 3 is held in a hinge cup 5, and the hinge cup 5 is also arranged essentially flush with the surface of the door 102 on an inner side. A side part 2 of the hinge 1 is fixed in the side wall 101, projecting from an end face of the side wall 101 with two arms 20. A pivot axis for the rotatable mounting of the hinge part 3 is formed on the arms 20. A drive lever 13 is also pivotally mounted on the hinge part 3, which is pivotally connected to a drive element 6 on the side part 2 and by means of which a closing movement of the door 102 can be at least partially controlled.

[0033] Figure 3A shows the hinge 1 in a closed position. The side part 2 comprises a housing 4 with two housing shells, which is essentially box-shaped, with a mounting tab 43 projecting from both a top and a bottom surface, each with an opening into which fasteners can be inserted. The housing 4 with the side part 2 can be fixed to an end face of the side wall 101 by means of the fasteners, the housing 4 being arranged in a pocket within the side wall 101. The hinge part 3 is adjustably held in a hinge cup 5, which has a mounting tab 51 with an opening on each of its opposite sides, so that the hinge cup 5 can also be essentially fixed to a receptacle or pocket on the door 102.In the closed position, a substantially flat side of the hinge cup 5, in which the hinge part 3 is arranged, and a flat side of the housing 4, on which the mounting tabs 43 are formed, are opposite each other. The hinge cup 5 has a greater width than the housing 4.

[0034] In the open position shown in Figure 3B, the hinge part 3 was pivoted relative to the side part 2 in the housing 4, causing the drive lever 13 to move the drive element 6 relative to the housing 4.

[0035] Figure 4 shows an exploded view of the hinge 1 according to the invention. The housing 4 comprises a first housing shell 40 and a second housing shell 41, which, in the assembled position, have a substantially vertical dividing plane. Several guide pins 42 are formed on the housing shell 40, which engage in elongated holes 23 on the side part 2. The elongated holes 23 are aligned parallel to a pivot axis of the hinge 1 and allow height adjustment of the side part 2 relative to the housing 4. A worm gear 16 is provided for height adjustment. The worm gear 16 is rotatably mounted on the side part 2 via an axis that engages in an opening 29. The worm gear 16 is driven by a rotating part 15, which engages in a profile on the circumference of the worm gear 16, for example, with teeth, so that rotating the rotating part 15 rotates the worm gear 16. The rotating part 15 is rotatably mounted on a bracket 28 of the side part 2.The worm 16 rests with a rib on a guide contour on the housing shell 41, so that by rotating the worm 16 the side part 2 can be moved relative to the housing 4 along the elongated holes 23.

[0036] The drive lever 13 is pivotally connected to the hinge part 3 and has a bearing opening 17 for a pivot axis for this purpose. On the opposite side, there is a bearing opening 14 into which an axis can be inserted, which extends through a bearing element 63 on the drive element 6 to pivotally mount the drive lever 13 to the drive element 6. The drive element 6 is slidably guided on the side part 2, for which a groove 26 is provided in the side part 2 in which the drive element 6 is inserted. A slot 27 is provided in the bottom of the groove 26, into which a pin of an adjusting element 62 engages. The adjusting element 62 is arranged in a receptacle 61 on the drive element 6. The adjusting element 62 can adjust the maximum opening position and has an eccentric for this purpose, a pin of which is rotatably mounted in an opening of a lever 64. The lever 64 is guided in the elongated hole 27 via a guide element.

[0037] The drive element 6 further comprises a hook 60 which can be coupled to a pin 81 of a driver 8. The driver 8 has guide pins 80 on opposite sides and is guided on a guide housing 7.

[0038] The guide housing 7 is fixed to the side part 2 by means of several webs 74 formed on the guide housing 7, each of which has cuboid projections 75. The cuboid projections 75 engage in recesses 24 and slots 25 on the side part 2. The side part 2 has two spaced-apart webs 22 that extend longitudinally in the direction of movement of the drive element 6, and the guide housing 7 is arranged between the webs 22. Other fastening mechanisms may also be provided for fixing the guide housing 7 to the side part 2.

[0039] The guide housing 7 comprises a first receptacle 71 into which a power storage element 10 is inserted. Furthermore, a second receptacle 70 is formed on the guide housing 7 into which a damping element 9, in particular a linear damper, is inserted. A holder 72 is provided on the first receptacle 71, to which one end 11 of the power storage element 10 can be fixed. An end 12 of the power storage element 10 opposite end 11 is fixed to the driver 8. The driver 8 has two guide pins 80 on opposite sides, each of which engages in a guide track 76 on the guide housing 7. The guide track 76 is designed as a slot or groove and comprises a linear section and an angled end section 77.

[0040] The hinge part 3 has a receptacle 31 for an eccentric 32, a cylindrical channel 33 for a rivet 34, and a receptacle for a screw 35 for depth adjustment. The hinge part 3 is located adjacent to an intermediate plate 37 and can be inserted into a cup insert 53, which can be inserted into a receptacle 50 on the hinge cup 5 via a clip connection. The cup insert 53 surrounds the hinge part 3 in a U-shape and includes a receptacle 54 on one leg, in which a clip holder 55 is rotatably mounted via an axis 56. The clip holder 55 is pre-tensioned by a leaf spring 57 and can be adjusted within the hinge cup 5.

[0041] Bearing receptacles 21 are formed on the two arms 20 of the side part 2, into which a pin can be inserted to form a pivot axis. The pin then extends through the two arms 20, between which a bearing section of the hinge part 3 is arranged.

[0042] In Figure 5, the hinge 1 is in an open position. The drive lever 13 has partially pulled the drive element 6 out of the housing 4, and the hook 60 of the drive element 6 is disengaged from the driver 8. The driver 8 is located with two guide pins 80 on the angled end section 77 of the guide track 76, and the energy storage device 10 is in a tensioned position. If the hinge part 3 is now pivoted from the open position in the closing direction, the drive lever 13 pushes the drive element 6 towards the guide housing 7.

[0043] In Figure 6, the hinge part 3 is in its open position, in which the drive element 6 is coupled to the driver 8. The hook 60 of the drive element 6 presses against a contact surface of the driver 8, causing it to move out of its pivoted position. The two guide pins 80 facing the drive element then engage not with the angled end section 77, but with the linear section of the guide track 76. This unlocks the driver 8 from its locked park position, and the energy storage device 10 can now move the driver 8 along the guide housing 7. The energy storage device 10 is designed as a tension spring and thus pulls the driver 8, and consequently the drive element 6, into the housing 4.

[0044] In Figure 7, the drive element 6 was moved into the closed position by the driver 8 and the energy storage device 10. The hinge part 3 was pivoted into the closed position, also shown in Figure 3A, via the drive element 6 and the drive lever 13. By moving the drive element 6 and the driver 8, the damping element 9 was moved into the compressed position and could thus decelerate the closing movement after coupling with the driver 8. When the hinge part 3 is pivoted in the opening direction, the driver 8 is moved again via the drive element 6 to the angled end section and parked there, so that the drive element 6 is again decoupled from the driver 8.

[0045] Figure 8A shows the hinge 1 in an open position in which the hinge part 3 is removed from the side part 2, so that a front face of the side part 2 is accessible. The side part 2 is arranged inside the housing 4, except for the two extensions 20 that project from the housing 4 at one front face. The side part 2 is in an upper adjustment position. The damping element 9 and the energy storage device 10 are decoupled from the drive element 6, so that the hinge part 3 can move freely.

[0046] For an adjustment operation, the rotating part 15, which engages with the worm 16, can be rotated. The rotating part 15 projects at least partially from a surface on the front of the housing 4 and is therefore easily accessible to a tool. One axis of rotation of the rotating part 15 is oriented at an angle to one axis of rotation of the worm 16, in particular at an angle between 60° and 120°, preferably between 60° and 80°. When the worm 16 is rotated via the rotating part 15, the side part 2 moves downwards relative to the housing 4, since the worm 16 engages with guide elements formed on the housing shell 41 (not shown). The side part 2 is displaced in the vertical direction, with the guide pins 42 on the housing shell 40 each moving in an elongated hole 23 on the side part 2.

[0047] Figure 8B shows the corresponding position of the door 102, which extends slightly upwards beyond the side wall 101 of a furniture carcass.

[0048] Figure 9A shows the side panel in a central adjustment position, with the guide pins 42 positioned in the middle of the elongated holes 23. The side panel 2, along with the hinge part 3 and the hinge cup 5, has been moved downwards accordingly. As shown in Figure 9B, the door 102 has been moved downwards relative to the side wall 101, so that the upper edge of the door 102 is approximately level with or slightly below the side wall 101. In a further adjustment, the side panel 2 can be moved further downwards by rotating the rotary part 15 and the worm gear 16, as shown in Figure 10A. The guide pins 42 have now reached the upper end of the respective elongated hole 23. As a result, the door 102 has been lowered further relative to the side wall 101, as shown in Figure 10B.

[0049] Figures 11A to 11C show the turned part 15 and the worm 16 in detail. The turned part 15 includes a tool insert 150 on one side, which is arranged towards a front and into which a tool for an adjustment operation can be inserted. The turned part 15 includes a disk 151, and a toothed section 152 is formed on the side opposite the tool insert 150. This toothed section 152 engages with teeth 162 of the worm 16, which has a helical rib 160 on one side, arranged on a disk 161. Projections 44 abut the rib 160 of the worm 16, which protrude from the housing shell 41 and are integrally formed or attached there. By rotating the worm 16 relative to the projections 44, the side part 2 can be adjusted in height.On the side opposite the rib 160, a pin 163 is provided which extends through the opening 29 in the side part 2, so that the worm 16 is rotatably mounted there.

[0050] In the illustrated embodiment, the side panel 2 is adjustable relative to the housing via a worm gear 16. It is also possible to provide an eccentric, a thread, or another adjusting element. Furthermore, the side panel 2 is adjustable only in height within the housing 4. It is also possible to provide at least one additional adjusting device on the side panel 2.

[0051] Reference symbol list

[0052] 1 hinge

[0053] 2 side panel

[0054] 3 hinge part

[0055] 4 cases

[0056] 5 hinge pot

[0057] 6 Drive element

[0058] 7 Guide housings

[0059] 8 drivers

[0060] 9 damping element

[0061] 10 energy storage units

[0062] 11 End

[0063] 12 End

[0064] 13 drive levers

[0065] 14 Warehouse opening

[0066] 15 Turned part

[0067] 16 snail

[0068] 17 Warehouse opening

[0069] 20 outriggers

[0070] 21 Bearing intake

[0071] 22 Bridge

[0072] 23 Slotted Hole

[0073] 24 recesses

[0074] 25 slots

[0075] 26 Nut

[0076] 27 elongated holes

[0077] 28 bracket

[0078] 29 Opening

[0079] 31 recording

[0080] 32 eccentrics

[0081] Channel 33

[0082] 34 rivets

[0083] 35 screw

[0084] 37 Intermediate plate

[0085] 40 Housing shell

[0086] 41 Housing shell

[0087] 42 guide pins

[0088] 43 Mounting tab 44 Projection

[0089] 50 recordings

[0090] 51 Mounting tab

[0091] 53 Pot insert

[0092] 54th entry

[0093] 55 clip holder

[0094] 56 axle

[0095] 57 leaf spring

[0096] 60 hooks

[0097] 61 recording

[0098] 62 Adjustment element

[0099] 63 Bearing element

[0100] 64 levers

[0101] 70 recordings

[0102] 71 recording

[0103] 72 holders

[0104] 74 Bridge

[0105] 75 lead

[0106] 76 Guide track

[0107] 77 Final section

[0108] 80 guide pins

[0109] 81 pen

[0110] 100 pieces of furniture

[0111] 101 Side wall

[0112] 102 Door

[0113] 150 tool inserts

[0114] 151 disc

[0115] 152 Gearing

[0116] 160 rib

[0117] 161 disc

[0118] 162 teeth

[0119] 163 cones

Claims

Claims 1. Hinge (1) for furniture (100) with a stationary housing (4) that can be fixed in a pocket of a side wall (101) and with a side part (2) and a hinge part (3) that can be fixed to a door (102) and which is rotatably held about a pivot axis on at least one extension (20) of the side part (2) projecting from the housing (4), wherein the side part (2) is adjustable relative to the housing (4) in at least one spatial direction via a rotating part (15), characterized in that the rotating part (15) is arranged on the side of the side part (2) on which the at least one extension (20) projects from the housing (4).

2. Hinge according to claim 1, characterized in that the rotating part (15) drives a rotatable adjusting element, the axis of rotation of which is aligned perpendicularly to an axis of rotation of the rotating part (15).

3. Hinge according to claim 2, characterized in that the adjusting element comprises a worm (16), an eccentric or a thread.

4. Hinge according to claim 2 or 3, characterized in that the adjusting element engages with the rotating part (15) via a toothing.

5. Hinge according to one of the preceding claims, characterized in that the housing (4) has at least one guide part on which the side part (2) is slidably held.

6. Hinge according to claim 5, characterized in that the at least one guide part is designed as a guide pin (42) which engages in an elongated hole (23) on the side part (2).

7. Hinge according to one of the preceding claims, characterized in that the side part (2) is height-adjustable in the installation position relative to the housing (4) via the rotating part (15).

8. Hinge according to one of claims 2 to 4, characterized in that the housing (4) has at least one guide element against which the adjusting element rests.

9. Hinge according to one of the preceding claims, characterized in that the housing (4) comprises two housing shells (40, 41) which have a vertical separating plane in the installation position of the hinge (1).

10. Hinge according to one of the preceding claims, characterized in that a holder (28) for supporting the rotating part (15) is formed on the side part (2).

11. Hinge according to one of the preceding claims, characterized in that a force storage device (10) for pre-tensioning the hinge part (2) in a pulling area to a closed position and a damper (9) for decelerating the hinge part (2) before reaching the closed position are provided on the side part (2), wherein a drive lever (13) is articulated to the hinge part (2) spaced apart from the pivot axis, which is connected to a movable drive element (6), and the drive element (6) is detachably coupled to a driver (8) movable along a guide track (76), which is connected to the force storage device (10) and the damping element (9).

12. Hinge according to one of the preceding claims, characterized in that the housing (4) has protruding mounting tabs (43) into which fastening means for fixing the housing (4) to the side part (2) can be inserted.

13. Hinge according to one of the preceding claims, characterized in that the hinge part (3) is arranged in a hinge cup (5) and is adjustable relative to the hinge cup (5) via at least one adjusting means.

14. Side wall (101 ) of a piece of furniture (100) with a pocket open towards an end face of the side wall (101 ) in which a hinge (1 ) is arranged according to one of the preceding claims.

15. Furniture (100) with a furniture body with a side wall (101) on which a housing (4) with a side part (2) of a hinge (1) according to one of the preceding claims is fixed in a pocket.

Citation Information

Patent Citations

  • Hinge for door leaves of furniture or the like and item of furniture provided with such hinge

    EP4010553A1

  • Adjustable hinge for doors or windows

    EP2924211B1

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    US20080209679A1

  • Door closer

    US20230184017A1