EP1342874A2 - Furniture hinge with adjusting device - Google Patents

Abstract

The adjustable hinge for furniture has one or more mounting plates (1,2) supporting a hinge arm (8) connected to a door mounted abutment (10). A depth adjustment screw (17) is rotatably mounted to the hinge arm but fixed against axial movement. An adjuster (23) with an eccentric plate (24,25) formed as a helical or serpentine plate has a curved adjusting face (26,27) to engage a corresponding surface (3,7) on the mounting plate.

Description

The invention relates to a furniture hinge with an adjusting device for a hinge arm mounted directly or indirectly on a furniture-side one-piece or multi-piece mounting plate according to the preamble of the independent claim.

In general, various adjustment options are provided for furniture hinges.

So there is an adjustment in the adjustment of the position of the hinge arm relative to the mounting plate in the direction of the furniture joint, d. H. a side adjustment of the furniture door. This adjustment is achieved by the so-called side adjustment screw, which is supported in a thread of the hinge arm and is held with its head in a recess in the mounting plate. Depending on the rotation of the screw, the hinge arm lifts more or less from the mounting plate, so that there is a lateral adjustment of the furniture door.

Another adjustment option relates to the depth adjustment of the hinge arm, by means of which the distance between the furniture door and the end face of the furniture can be adjusted. The depth adjustment is generally carried out with a clamping screw, through which the hinge arm is attached to the mounting plate. The clamping screw protrudes through an elongated hole in the hinge arm, the depth setting being made by sliding along the elongated hole and the range of the depth adjustment path being determined by the length of the elongated hole.

A furniture hinge of the type mentioned above is e.g. known from DE 298 11 793 U1.

However, the known adjustment devices have considerable disadvantages.

With regard to the side adjustment of the door, the hinge arm is pivoted about an imaginary axis by turning the side adjustment screw, so that the adjustment movement takes place along an arc of a circle. This not only adjusts the side position of the door, but also inadvertently the depth position of the door, so that the distance of the door from the front edge of the furniture changes.

The problem with depth adjustment is that the depth adjustment screw has to be loosened to allow displacement along the elongated hole. A sensitive setting is not possible.

A hinge with compensation function for the side adjustment is in the
DE 299 14 473 U1. At least one pivot lever is provided which is pivoted when the side adjustment screw is turned and on which the hinge arm is supported indirectly or directly, the hinge arm being guided parallel to the base plate by the at least one pivot lever when the joint adjustment screw is turned. However, the construction presented here appears to be very complex to manufacture. The object of the invention is to propose a furniture hinge which has simpler adjustment options without an excessive design and manufacturing effort being necessary.
This task is solved by the features of the independent patent claim.

An important feature is that the depth adjustment screw is rotatably and non-displaceably mounted directly or indirectly on the hinge arm and has a control part with at least one eccentric disc or spiral or helical disc with at least one at least partially conical or concave or convex footprint, which is supported on the associated contact surfaces of the mounting plate and thus a twisting of the side adjustment screw a side adjustment and at the same time a displacement of the hinge arm approximately in the direction of its longitudinal axis relative to the mounting plate and thus causes a correction of the depth adjustment of the door, so that the gap between the door and the furniture side wall is essentially unchanged after the side adjustment has taken place.

The depth adjustment screw is thus designed as a control part, in which it has surfaces (facet-like) with inclined angles, which are clamped between two fixed stops of the setting plate. The depth adjustment screw is rotatable in the hinge arm and axially immovable.

• 1. Einfache Seiteneinstellschraube wie bei den herkömmlichen Scharnieren;
• 2. Tiefeneinstellschraube mit einer Doppelfunktion;
• 3. Nur eine einzige Schraube bewirkt die Voreinstellung des Spaltes und die Spaltkorrektur bei Seitenverstellung.

Benefits:

• 1. Simple side adjustment screw as with conventional hinges;
• 2. depth adjustment screw with a double function;
• 3. Only one screw causes the gap to be preset and the gap to be corrected when the side is adjusted.

Double function of the depth adjustment screw:

• a) By turning the depth adjustment screw, the gap width is preset via the control part and its inclined surfaces (e.g. preselected gap width 2.5 mm)
• b) When the door is adjusted laterally by turning the side adjustment screw, the inclined surfaces of the depth adjustment screws slide along the fixed stops and thereby move the hinge arm by the amount necessary to correct the gap. The preset gap width (in our example 2.5 mm) remains.

The cone-like footprint of the depth adjustment screw is preferably frustoconical and does not extend over the full circumference of the depth adjustment screw of 360 °, but only by, for example, 270 so that stop faces for limiting the angle of rotation can then be formed on the open end faces, which with corresponding stop faces on the adjusting plate work together.

However, shapes other than the frustoconical shape of the shelves are also possible, with only at least one eccentrically rotatable eccentric disk being required for the initial depth adjustment for sliding the contact surface of the shelf over the circumference of the shelves.

Furthermore, at least one inclined surface is required on this eccentric disk for the radial and at the same time axial sliding of the contact surfaces of the positioning plate with respect to the axis of rotation depth adjustment screw. Thus, under these conditions, a footprint can also be used, which can also be oblique, concave or convex instead of frustoconical, or can be eccentric, spiral or helical.

However, two axially superimposed, rotationally symmetrical eccentric disks with truncated cone-shaped surfaces are preferably used, the axes of symmetry of which are approximately parallel to the axis of rotation of the depth adjustment screw and to themselves, the frustoconical surfaces tapering in opposite directions from a common base.

The positioning plate has an opening, in the area of which the contact surfaces for the interacting sliding are formed on the positioning surfaces of the eccentric discs.

A first contact surface is preferably formed by the edge of the opening itself, the second contact surface by a nose set apart from the opening, as a result of which the superimposed contact surfaces result in two planes for the interacting sliding on the positioning surfaces of the eccentric discs. In this case, the nose is advantageously stamped and bent in one piece from the setting plate, the setting plate being clipped onto the base plate, for example, as a separate part.

An embodiment of the invention is described in more detail below with reference to drawing figures. Further features, advantages and possible uses of the invention result from the drawings and their description.

Fig. 1:

eine perspektivische Ansicht des erfindungsgemäßen Möbelscharniers im Montagezustand mit teilweise Längsschnitt durch den Scharnierarm;

Fig. 2:

einen Längsschnitt durch das erfindungsgemäße Möbelscharnier in einerersten Stellung mit maximaler Seitenverstellung;

Fig. 3:

einen Längsschnitt durch das erfindungsgemäße Möbelscharnier in Einer zweiten Stellung mit minimaler Seitenverstellung;

Fig. 4:

eine Seitenverstellschraube nach der Erfindung;

Show it:

Fig. 1:

a perspective view of the furniture hinge according to the invention in the assembled state with a partial longitudinal section through the hinge arm;

Fig. 2:

a longitudinal section through the furniture hinge according to the invention in a first position with maximum lateral adjustment;

Fig. 3:

a longitudinal section through the furniture hinge according to the invention in a second position with minimal lateral adjustment;

Fig. 4:

a side adjustment screw according to the invention;

The furniture hinge comprises a mounting plate consisting of a base plate 1 and a positioning plate 2, the base plate 1 being fastened to the side wall of the furniture box 11. The setting plate 2 can be detachably and releasably connected to the base plate 1. On the setting plate 2, the hinge arm 8 is attached, which is articulated with a door-side stop part, for. B. a hinge cup 10 is connected, which is embedded in the furniture door 12 via screws 9. To adjust the side of the furniture door 12, d. H. To adjust the hinge arm 8 in the direction of the mounting plane or base plate 1, a conventional side adjustment screw 13 is provided.

The depth adjustment, i.e. the adjustment of the hinge arm 8 parallel to the base plate 1, is carried out by means of a depth adjustment screw 17, which has no thread as in the prior art, but is accommodated with its screw neck in an opening in the hinge arm 8 and is rotatably but not displaceably mounted there , In addition to this, the depth adjustment screw 17 engages with its control part 23, which has an axially upper 24 and lower eccentric disk 25, in a recess 6 in the adjusting plate 2. Here, the axially upper eccentric 24 lies with its angular, facet-shaped footprint 26 on one L-shaped nose 3, which nose 3 was formed in one piece from the setting plate 2, or is attached to it. Furthermore, the lower eccentric disk 25 lies with its angular, facet-shaped standing surface 27 on the inner edge of the recess 6 of the setting plate 2. The nose 3 and the inner edge of the recess 6 do not lie in a common plane, the nose 3 protruding from the surface of the setting plate 2 in the direction of the hinge arm 8.

Both shelves 26 and 27 are approximately frustoconical and tapered mirror-inverted axially to the longitudinal axis of the depth adjustment screw 17, so that the upper shelf 26 tapers to the neck 31 and head 29 of the screw 17, but the lower shelf 27 is directed away from the neck 31 and head 29 tapers. The contact surface 3a of the nose 3 and the contact surface 7a of the edge 7 of the opening 6 of the positioning plate 2 for the interaction with the positioning surfaces 26 and 27 are suitably conical, so that favorable sliding surfaces are provided for sliding on one another and thus almost no material abrasion he follows.

In addition, the two axes of symmetry of the eccentric discs 24, 25 and their positioning surfaces 26, 27 are arranged radially offset from one another and to the longitudinal axis of the screw 17, so that there is eccentricity in each case. Both eccentric disks 24, 25 are thus somewhat eccentric to the longitudinal axis of the screw 17, so that the setting surfaces 26, 27 move radially when the screw 17 is rotated by means of a tool in the opening 30, as a result of which the depth of the door 12 is adjusted.

The stop surface 28 of the screw 17 prevents the screw 17 from being overtightened by abutment on the adjusting plate 2 in the maximum position. Likewise, the stop surface can instead or additionally be arranged on the upper eccentric disk 24 and a further stop surface can be provided for overtightening the screw 17 in the opposite direction, so that both directions of rotation are secured.

The screw 17 is either at least separable between the neck 31 and the eccentric washers 24, 25 so that it can be inserted into the recess in the hinge arm, or this opening is designed as an elongated hole and is somewhat longer than the diameter of the head 29 Screw 17.

In a certain relative position of the screw 17 to the opening 6 in the setting plate 2, the screw 17 can be threaded there, so that the contact surface 3a of the nose 3 rests on the surface 26 and the contact surface 7a of the opening edge 7 on the surface 27, as well the underside of the nose 3 on the flat contact surface 32 formed between the eccentric discs 24, 25, as a result of which the control part 23 is easily clamped in the setting plate 2.

If the depth adjustment screw 17 is then turned by overcoming the clamping resistance, the hinge arm 8 can be moved in the direction of the arrow 22 until the gap S has the desired value, which e.g. is preset to 2.5 mm. This enables easy and sensitive depth adjustment.

The side adjustment screw 13 is mounted with its thread 16 in a threaded bore of the hinge arm 8 and is supported with its screw head 14 on an associated contact surface 15 of the setting plate 2. By turning the side adjustment screw 13, the hinge arm 8 can now be adjusted in the direction of the arrow 21, so that the door 12 e.g. pivoted from the position of Figure 1 into the position of Figure 2 and the gap F changes.

However, since the hinge arm 8 does not perform a pure lifting movement in the direction of arrow 21 during the side adjustment, but rather a pivoting movement, there is a circular movement about an imaginary axis with pivot point 19, so that the adjusting movement takes place along an arc 20 with a radius 18. This not only results in an adjustment of the joint width F, but also an undesirable change in the gap S by the amount K.

This undesired depth adjustment movement is counteracted according to the invention by the depth adjustment screw 17 having the control part 23, which compensate for the change in the gap S by the amount K when the side adjustment screw 13 is turned.

If the side adjustment screw 13 is now rotated to the right, the hinge arm 8 is lifted upwards due to the thread 16 and at the same time the shelves 26, 27 slide on the associated contact surfaces of the nose 3 and the opening edge 7 of the adjusting plate 2, which yes yes over the base plate 1 is connected to the furniture body 11. By this sliding of the shelves 26, 27 on the associated contact surfaces of the nose 3 and the opening edge 7 of the setting plate 2 is then automatically when turning the side adjustment screw 13 and the associated pivoting of the hinge strap 8 and thus the door 12, the gap S around negative amount K changed in that hinge band 8 and thus the door 12 is moved in the opposite direction 22.

The hinge arm 8 is thus displaced in the direction 22 by an amount K in the depth 22 by rotating the side adjustment screw 13 and pivoting the hinge arm 8 about the pivot point 19, so that the gap S changes. At the same time, however, the automatic depth compensation of the depth adjustment screw 17 displaces the hinge arm 8 in the opposite direction 22 by preferably the same amount K (but negatively), so that in the most favorable case the control part 23 of the depth adjustment screw 17 compensates for the depth shift by the distance K takes place and the gap S remains constant at the preset value (eg 2.5 mm).

The depth adjustment thus has a special depth adjustment screw 17, which is shown in more detail in FIG. 4. The depth adjustment screw 17 comprises two superimposed eccentric discs 24 and 25, which interact with contact surfaces arranged in the setting plate 2. For this purpose, the setting plate 2 has a special opening 6 with an opening edge 7 and one from the setting plate 2 stepped nose 3, which form contact surfaces for interaction with the upper and lower eccentric discs 24, 25.

The essence of the invention is therefore that in the adjustment of the side adjustment screw 13, which in addition to the desired side adjustment in the direction of arrow 21 by the amount F also leads to an undesirable change in the gap width in the direction of the arrow 22 by the amount K between the door 12 and the Body 11 leads, a compensation device is used. The compensation device consists of two non-rotatably connected sliding surfaces 26, 27 connected to the depth adjustment screw 17, two eccentric disks 24, 25 of a control part 23, said sliding surfaces 26, 27 resting against each other on assigned, stationary surfaces 3a, 7a of the setting plate 2.

When the side adjustment screw 13 is actuated, the control part is thus displaced along the sliding surfaces 26, 27 in the adjusting plate 2 in the longitudinal direction of the hinge and a change resulting from the actuation of the side adjustment screw 13 by the amount K of the gap S between the door 12 and the body 11 is caused by this compensation movement balanced.

The prerequisite here is that the depth adjustment screw 17 according to the invention can already be used to set a predetermined gap dimension S, which is then changed in an undesirable manner by actuating the side adjustment screw 13. This is where the invention comes in, which provides that the connection of the depth adjustment screw 17 to the control part compensates for the undesired change in the gap width in the depth direction by the amount K when the side adjustment screw 13 is actuated.

drawing Legend

1

baseplate

2

adjusting plate

3

Nose; 3a contact surface

4

Bearing for 13

5

breakthrough

6

Breakthrough for 17

7

Edge of 6; 7a contact surface

8th

hinge

9

screw

10

hinge cup

11

Furniture sidewall

12

furniture door

13

windage

14

screw head

15

contact surface

16

thread

17

Depth adjusting screw

18

radius

19

pivot point

20

arc

21

arrow directions

22

arrow directions

23

control part

24

Upper eccentric disc from 23

25

Lower eccentric from 23

26

Angled footprint of 24

27

Angled footprint of 25

28

stop surface

29

Screw head of 17

30

Opening for tool in 29

31

Neck of 17

32

flat contact surface of 25

S

Gap width in the depth direction

K

Compensation amount from S

F

Gap width in the lateral direction

Claims (12)

Furniture hinge with an adjustment device for a hinge arm (8) mounted indirectly or directly on a furniture-side, one-piece or multi-part mounting plate (1, 2), which is articulated to a door-side stop part (10), the adjustment device having a side adjustment screw (13) , by means of which the position of the hinge arm (8) can be changed substantially perpendicular to the plane of the mounting plate (1, 2) for the lateral adjustment of the door (12), and has a depth adjustment screw (17) by means of which the position of the hinge arm (8) is parallel for the longitudinal extension of the mounting plate (1, 2) for the depth adjustment of the door (12) can be changed, characterized in that the depth adjustment screw (17) is rotatably and immovably mounted directly or indirectly on the hinge arm (8) and a control part (23) with at least one Eccentric disc (24, 25) or a spiral or helical disc with at least one at least has partially conical or concave or convex footprint (26, 27), which is supported on associated contact surfaces (3, 7) of the mounting plate (1, 2) and thus a rotation of the side adjustment screw (13) a side adjustment by an amount (F) and at the same time a displacement of the hinge arm (8) approximately in the direction of its longitudinal axis relative to the mounting plate (1, 2) and thus a correction of the depth adjustment of the door (12) by an amount (K), so that a gap width (S) between the door (12) and the furniture side wall (11) is essentially unchanged after the side adjustment. Furniture hinge according to claim 1, characterized in that the mounting plate comprises a base plate (1) and an adjusting plate (2). Furniture hinge according to one of claims 1 or 2, characterized in that the at least one footprint (26, 27) does not extend over the full circumference of 360 °. Furniture hinge according to claim 3, characterized in that the axis of symmetry of the at least one standing surface (26, 27) extends approximately parallel to the axis of rotation of the depth adjustment screw (17). Furniture hinge according to one of claims 1 to 4, characterized in that two eccentric disks (24, 25) lying axially one above the other are provided with truncated cone-shaped surfaces (26, 27) which are mirror images of one another. Furniture hinge according to claim 5, characterized in that at least both axes of symmetry of the eccentric discs (24, 25) are approximately parallel to the axis of rotation of the depth adjustment screw (17) and approximately parallel to each other. Furniture hinge according to one of claims 5 or 6, characterized in that the axially lower eccentric disc (25) located at the free end of the depth adjustment screw (17) tapers towards the free end, but the upper eccentric disc (24) located on the screw head (29) tapers in the opposite direction. Furniture hinge according to one of claims 1 to 7, characterized in that the setting plate (2) has an opening (6), in the area of which the contact surfaces (3, 7) for the interacting sliding on the at least one setting surface (26, 27) are formed are. Furniture hinge according to one of claims 1 to 8, characterized in that the setting plate (2) has a first contact surface (7a) and a nose (3) with contact surface (3a) at the edge (7) of the opening (6), whereby bearing surfaces (3a, 7a) lying one above the other in two planes result for the interacting sliding on the at least one footprint (26, 27). Furniture hinge according to one of claims 1 to 9, characterized in that the depth adjustment screw (17) has stop faces (28) for limiting the angle of rotation. Furniture hinge according to claim 10, characterized in that the abutment surfaces (28) serve to rest against the positioning plate (2). Furniture hinge according to one of claims 1 to 11, characterized in that the depth adjustment screw (17) has a rotationally symmetrical neck (31) which extends through a recess in the hinge arm (8) and is rotatably but non-displaceably received therein.

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