AT504686B1 - DOUBLE ARM HINGE - Google Patents

Description

2 AT 504 686 B1

The invention relates to a double hinge with a carcass hinge part for attachment to a furniture body, a door hinge part for attachment to a movable furniture part, two hinge arms, which are pivotally connected in each case on the one hand with the carcass hinge part, on the other hand with the door leaf hinge part , and a arranged in the region of the body hinge part functional unit, in particular a damper or an opening and / or closing spring mechanism or a motor for opening and / or closing the hinge, which has a displaceable actuating element, wherein the functional unit with at least one transmission part in operative connection is, which is a separate from the hinge arms component and on the one hand pivotally mounted about a door hinge hinge part fixed pivot axis, on the other hand, about a slidably guided by the carcass hinge part guided pivot axis supported rt is.

Double articulated hinges, also called four-bar hinges, have two hinge arms (= articulated levers or articulated arms), which are pivotally connected to the carcass hinge part on the one hand, and to the door leaf hinge part, for example, and thereby guide the pivoting movement of the door leaf hinge part relative to the carcass hinge part , Such double-hinge hinges are used in large numbers as furniture hinges for door leaves of furniture.

Double hinge hinges with functional units for actuating the hinge in the opening and / or closing direction or for influencing the opening and / or closing characteristic of the hinge are known in different embodiments. Thus, for example, double-link hinges are known with mounted on the hinge arm of the carcass hinge part or on the door leaf hinge part dampers to dampen the closing movement of the hinge over a last section before reaching the closed position. Double hinge hinges of this type are disclosed, for example, in US Pat. No. 6,591,454 B2 and EP 1 404 938 B1.

From DE 20 2004 019 238 U1 further goes a double-link hinge with a patch on the door hinge part functional unit in the form of an opening-spring mechanism with a touch-latch mechanism (= push-to-open mechanism). Here, the door is closed manually over a last section of its closing path, wherein the touch-latch mechanism is tensioned and locked in the closed state of the door leaf. By a further slight pressing of the door leaf of the touch-latch mechanism is released and the functional unit pivots the door wing over a first section in its opening direction.

In addition, furniture hinges are known in which a functional unit is integrated in the carcass hinge part or the door leaf hinge part, whereby a more compact design can be achieved. For example, a double-link hinge with an integrated damper or an integrated spring mechanism from WO 2004/083580 A1 is known. For rotary actuation of this functional unit serve in one of the embodiments shown two additional pivoting levers which are pivotally connected to each other and of which a pivot lever further with the carcass hinge part and the other pivot lever are further pivotally connected to the door leaf hinge part. This leads to a relatively bulky construction.

DE 103 33 925 A1 discloses a double-link hinge with a damper integrated in the door-leaf hinge part. The door hinge part is here designed to be much larger than other conventional furniture hinges.

From EP 1 375 797 A1 a double link hinge of the type mentioned is known. A functional unit in the form of a damper is integrated in the hinge arm of the body-hinge part and articulated to a connecting tongue attached to the inner toggle lever. In this furniture hinge it comes to high load peaks of the inner joint lever with a corresponding risk of breakage of this joint lever. Also, the actuation path for the damper is relatively short.

From US 5,012,551 A is also known a double-link hinge with a built-in hinge arm damper, which is actuated by the inner articulated lever. The inner articulated lever in this case has one of the pivot axis about which it is pivotable relative to the hinge arm, in one of the pivot axis about which it is pivotable relative to the door hinge part pioneering direction projecting connecting lever arm, which engages the damper. The damper is aligned at right angles to the longitudinal extent of the hinge arm. It can be used in this way only a very short damper with a short actuation path.

DE 202 07 036 U1 shows a universal joint hinge, which is provided with a built-in hinge arm linear damper whose piston rod engages directly on a relatively large in a universal joint hinge formed hinge lever.

From EP 1 538 293 A1, in a first exemplary embodiment, a double-link hinge emerges, in which a rotary damper, similar to the already mentioned WO 2004/083580 A1, has two additional swiveling levers which are pivotably interconnected between the carcass hinge part and the door leaf hinge part he follows. A second embodiment shows a universal joint hinge, in which, in a conventional manner, one of the hinge links on the one hand pivotally connected to the door leaf hinge part, on the other hand is coupled longitudinally displaceably pivotable with the carcass hinge part. This hinge arm actuates a linear damper when closing the hinge.

When known from DE 31 20 201 A1 double link hinge a friction damper is arranged in the hinge arm having a arranged on a rod piston brake cylinder. In a groove of the brake cylinder engages a connected to the inner hinge lever of the hinge driving lever. Apart from the disadvantages of such a friction damper, a relatively short actuating travel of the damper is also present here.

Another double-link hinge with integrated damping is known from EP 1 420 138 B1. In order to increase the damping path of the movable damping member, an additional gear member is present, which has concentric with its axis of rotation two engagement pieces with larger and smaller lever arm, which are on the one hand with a damper side gear member, on the other hand with a hinge side gear member engaged. The additional gear member complicates the formation of the hinge.

WO 2005/108 726 A1 discloses a generic double-link hinge.

The object of the invention is to provide a double-link hinge of the type mentioned above with a particularly compact design available.

According to the invention, this is achieved by a double-link hinge with the features of the claim!

The double-link hinge according to the invention thus has a transmission part, which is connected on the one hand pivotally connected to the door hinge part, on the other hand slidably connected to the carcass hinge part pivotally. About its displacement relative to the carcass hinge part when opening and closing the hinge, it interacts directly or indirectly with the displaceable, in particular linearly displaceable, actuating element of the functional unit. Due to the arrangement of the functional unit, at least largely within the carcass hinge part, a particularly compact design is achieved. Here, the displaceably guided by the hinge arm pivot axis of the transmission part can be formed by a pivot pin which is slidably guided in at least one slot of the body hinge part and is displaced by the displacement of the actuating element of the functional unit or of the displaceable Actu-5 supply element of Function unit is moved. The functional unit may, for example, a damper for damping the closing movement of the hinge, a damper for damping the opening movement of the hinge, a spring mechanism for opening the hinge over at least part of its opening movement, a spring mechanism for closing the hinge over at least part of its closing movement or a motor For example, be an electric motor to open and close the hinge, or a combination thereof.

In one embodiment of the invention, the functional unit can have a housing with an actuating rod led out of it, which is axially displaceable and which forms the displaceable actuating element.

In a double-joint hinge according to the invention, the hinge link can advantageously have the well-known for double-linkage hinged training with an outer and an inner hinge link, preferably with one of the hinge-20 handlebar spring element cooperates to the last portion of the closing movement of the hinge acting in the closing direction force cause. An inventive double-link hinge can be made very compact, yet a relatively large actuation path of the actuating element of the functional unit can be achieved. Even unfavorable load peaks of the hinge arm can be avoided. 25

In an advantageous embodiment of the invention, the pivot axis serving for the pivoting of the transmission part relative to the door hinge part and the pivot axis of one of the hinge arms, preferably the outer hinge arm coincide, wherein they can be conveniently formed by a common axle 30. In particular, this axle may extend in a conventional manner within a cup-shaped recess of the door leaf hinge part. It is also conceivable and possible, however, to articulate the transmission part at a location other than the hinge arms on the door hinge part, wherein it can be pivoted about a pivot axis which is parallel to the pivot axes of the hinge arms. 35

Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show:

Figure 1 is a double-link hinge according to the invention in the open state, in oblique view. 40 45 50

FIG. 2 shows the double-link hinge of FIG. 1 with the mounting plate removed; FIG.

Fig. 3 is a side view of the double link hinge in the closed state;

4 shows a view of the double-link hinge in the closed state;

Fig. 5 is a section along the line A-A of Fig. 4;

6 shows a side view of the double link hinge in the opened state;

7 shows a section corresponding to FIG. 5 in the opened state of the double-link hinge;

Fig. 8 is an oblique view of the double-link hinge analogous to Figure 2, but without the mounting plate and the hinge arm and the transmission part cut along its longitudinal center.

9 is an exploded view of the double-link hinge;

10 to 13 are schematic sectional views of embodiments of the functional unit.

An embodiment of a Doppellenkerscharniers according to the invention is shown in the figures. The double hinge hinge, also called four-bar hinge, comprises a carcass hinge part 1 for attachment to a furniture carcass 3, of which only in FIG. 3 a section 5 AT 504 686 B1 is shown by dashed lines, and a door hinge part 2 for attachment a movable furniture part 4, of which only in Fig. 3, a section is shown by dashed lines. The carcass hinge part 1 and the door leaf hinge part 2 are connected to each other by two hinge links 5, 6, also called articulated arms or articulated levers. The outer hinge arm 5 and the closer to the furniture body 3 inner hinge arm 6 are hinged in each case in the region of one end about a body hinge part 1 stationary pivot axis 7, 9 pivotally mounted on the carcass hinge part 1 and in the region of its other end to a door leaf Hinge part 2 stationary pivot axis 8, 10 hinged to the door leaf hinge part 2. The hinge arms 5, 6 guide the pivoting movement of the door leaf hinge part 2 relative to the body hinge part 1 when opening and closing the hinge.

The pivot axes 7, 9 about which the hinge arms 5, 6 are pivotally connected to the carcass hinge part 1 are formed in the illustrated embodiment of the hinge arm 13 held axle bolts 40, 42, which pass through holes 44, 46 in the hinge arms 5, 6 , The pivot axes 8, 10 about which the hinge arms 5, 6 are pivotable relative to the door leaf hinge part 2, are formed by axle bolts 41, 43, the holes 45, 47 in the hinge arms 5, 6 prevail. For example, the axle bolts 41,43 can be formed by U-rivets.

The pivot axes 7-10 of the hinge arms 5, 6 are parallel to each other.

The door hinge part 2 has a pot-shaped recess 11, with which it is inserted into a corresponding recess in the movable furniture part 4, i. the door hinge part 2 is designed as a so-called hinge cup. For attachment to the movable furniture part 4 serve in the illustrated embodiment laterally projecting mounting flanges with screw holes 12th

The carcass hinge part 1 comprises a hinge arm 13, which has a longitudinal extent at right angles to the pivot axes 7-10. The hinge arm 13 has a U-shaped cross section which is formed by first and second side legs 14, 15 and a back web 16 connecting them, wherein the back web 16 closes the body hinge part 1 on the side of the plant side 17, with it can be applied to the furniture body 3, opposite.

For mounting the carcass hinge part 1 on the furniture body 3 is a mounting plate (= mounting bracket) 18. The mounting plate 18 is screwed in the embodiment shown by screw holes 19 on the furniture body 3.

To connect the hinge arm 13 with the mounting plate 18 is a clip portion 20 to which the hinge arm 13 is attached. The clip part 20 and the mounting plate 18 can be clipped together in a known manner by means of corresponding connecting elements to the hinge arm 13 after the mounting plate 18 has been mounted on the furniture body 3, set on the furniture body 3. Preferably, the hinge arm 13 relative to the clip member 20 is adjustable, as is also known, for example by means of an adjusting screw 21 for support adjustment and an eccentric screw 22 for depth adjustment. Also, the mounting plate 18 may have an adjustment, such as an eccentric screw 23 for height adjustment of the hinge, as is also already known. The connection of the hinge arm 13 with the mounting plate 18 can also be done in a different manner, for example, the hinge arm 13 could be bolted directly to the mounting plate 18.

In the embodiment shown, a spring 30 is further provided to cause a force acting in the closing direction in an end portion of the closing movement of the hinge. In this case, the spring 30 can cooperate, for example, with a control surface of the inner hinge arm 6, as is known in double-link hinges. The spring 30 is held by a pin 31 on the hinge arm 13. 6 AT 504 686 B1

In the region of the body hinge part 1, a functional unit 24 is arranged, which is formed in the embodiment shown by a damper. The functional unit 24 is at least largely disposed within the body hinge part 1, in particular in the region between the side legs 14, 15 of the hinge arm 13. In the embodiment shown, it is here between side legs of the arranged in the hinge arm 13 clip part 20th

The functional unit 24 has a housing 25 and an outgoing therefrom and displaceable in the axial direction actuating rod, which forms an actuating element 26 for a located within the housing 25 is a resistance element of the damper, which cooperates with a damping medium. The resistance element of the damper can be formed in particular by a linearly displaceable piston. The housing 25 is held for example by means of holes 27 passing through pins 28 on the hinge arm 13. At the opposite end of the actuating rod a led out of the housing 25 adjusting screw 29 is shown, with which the resistance of the resistance element, in the illustrated embodiment piston, with respect to the damping medium is variable.

To actuate the actuating element 26 of the functional unit 24 is a transmission part 32, which is a separate from the hinge arms 5, 6 component. In the region of its one end, the transmission part 32 is mounted so as to be pivotable about a pivot axis 8 fixed to the door leaf hinge part 2. In the illustrated embodiment, this pivot axis 8 coincides with the pivot axis 8 of the outer hinge arm 5, about which this is pivotally connected to the door leaf hinge part 2. Here, holes 33 in first and second side legs 34, 35 of the transmission part 32 of the shorter legs of the U-shaped axle bolts 41,43 passes through, which also serve for articulation of the outer hinge arm 5 on the door hinge part 2.

An end portion of the transmission part 32 thus protrudes into the cup-shaped recess 11 of the door hinge part 2.

The articulation of the transmission part 32 on the door leaf hinge part 2 could also take place about a pivot axis distanced from the pivot axis 8, for example by means of non-continuous axle stub. It would also be conceivable and possible for the pivot axis of the transmission part 32 to coincide with the pivot axis 10 of the inner hinge arm 6.

The transmission part 32 is further pivotably mounted about a pivotally guided by the hinge arm 13 of the body hinge part 1 pivot axis 38 which is parallel to the pivot axis about which the transmission part 32 is pivotally mounted on the door hinge part 2. For this serve in the illustrated embodiment in the longitudinal direction of the hinge arm 13 extending slots 39 in the two side legs 14, 15 of the hinge arm 13. In the slots 39, a pin 48 is guided, with its two ends in holes 36 in the side legs 34, 35 of the Transfer section 32 protrudes. The elongated holes 39 could also extend at an angle to the longitudinal extension of the hinge arm 13 or have a curved course.

When opening and closing the hinge, the transmission member 32 pivots about the pivot axis 8, about which it is pivotally hinged to the door hinge part 2, and to a lesser extent around the pivot axis 38 relative to the hinge arm 13. Further, it shifts this relative to the Hinge arm 13.

The displaced during the displacement of the transmission part 32 relative to the hinge arm 13 with the transmission part 32 pin 48 is connected to the actuating element 26 of the functional unit 24, for example, the end portion of the actuating element 26 may have an external thread, which in a threaded hole in a widened portion 49 of Pin 48 is arranged. When the hinge is closed, the actuating element 26 is thus displaced from the pin 48, whereby the resistance element of the damper is displaced against a damping medium. Here, the damper may be formed with a correspondingly adapted damping characteristic in order to achieve a desired course of the damping force. When opening the furniture hinge, the actuating element 26 is in turn moved back, wherein the resistance element of the damper in this direction can preferably be moved without damping or with a much lower force relative to the damping medium.

In the illustrated embodiment, the transmission part 32 as already mentioned first and second side legs 34, 35 which extend relative to the direction of the pivot axes 7-10 on both sides next to the hinge arms 5, 6. Furthermore, the side legs 34, 35 of the transmission part 32 extend relative to the direction of the pivot axis 38 on both sides next to the hinge arm 13. The side legs 34, 35 are interconnected via a connecting web 37, which extends on the side facing away from the contact side 17 of the spine web , The transmission part 32 is thus formed in sections U-shaped.

Different other embodiments of the transmission part 32 are conceivable and possible. Thus, the transmission part 32 could also be guided into the region between the side legs 14, 15 of the hinge arm 13 in this. For example, the transmission part 32 could in this case also be arranged within the side limbs of the outer hinge arm 5 or the inner hinge arm 6 could be formed with two side limbs, through the intermediate space of which the transmission part 32 is guided. The transmission part 32 could also comprise only a single leg.

It would also be conceivable and possible to design the transmission part 32 in several parts, for example, not to connect the two side legs 34, 35 by a connecting web 37. In other words, more than one transmission part 32 could be present in this case.

Instead of a rigid connection of the transmission part 32 with the actuating element 26, this connection could also be such that the transmission part 32 or a part rigidly connected thereto displaces the actuating element 26 into the direction of displacement when closing the hinge, the actuating element 26 and in the other direction of displacement of the actuating element 26 is liftable. In this case, the actuating element 26 could be moved back into the ready position by a spring integrated in the functional unit 24.

In the embodiment shown, the housing 25 of the functional unit 24 may be rigidly connected to the hinge arm 13. In order to accommodate tolerances, or if the slots 39 are not parallel to the longitudinal extent of the hinge arm 13, the housing 25 could also be pivotally connected to the hinge arm 13.

Conversely, it would also be conceivable and possible to attach the actuating rod to the hinge arm 13 and to move the housing 25 by means of the transmission part 32. In this case, the housing 25 would represent the linearly displaceable actuator.

Instead of damping the closing movement, in particular in a last section of the closing movement, or in addition thereto, the functional unit 24 could also effect a damping of the opening movement, in particular in a last section of the opening movement of the hinge. In this case, it would also be possible for the double-link hinge to have a spring which, in particular in a last section of the opening movement, effects a force in the opening direction.

Instead of damping or in addition to this, other functions can also be performed by the functional unit 24, for example opening and / or closing the hinge, at least over a section of the opening, by spring force or by an electric drive motor, in particular - or closing way. Exemplary embodiments for a functional unit 24 which can be replaced in the exemplary embodiment according to FIGS. 1 to 9 are shown schematically in FIGS. 10 to 13.

The functional unit 24 shown in FIG. 10 is a linear damper. As a resistance element in the housing 25 against a damping medium, such as a hydraulic fluid, linearly displaceable piston 50 is present. The damping resistance in the damped displacement direction of the piston 50 can be changed with the adjusting screw 29. In the opposite direction of movement of the piston 50, this is preferably substantially unattenuated.

In the embodiment according to FIG. 11, the actuating element 26 is designed in the form of a toothed rack which cooperates with, for example, three pinions 51, of which rotary dampers are actuated. Also, more or less than three rotary damper could be present.

In the embodiment according to FIG. 12, the functional unit 24 comprises a motor 52 with transmission gear 53, via which the motor 52 moves the actuating element 26 for opening and closing the hinge.

In the embodiment according to FIG. 13, the functional unit 24 is designed in the form of a touch-latch mechanism. When the hinge is closed, the spring 54 is tensioned and the pusher 55 is engaged. Upon renewed pressing of the actuating element 26, the locking of the thrust member 55 is released and the spring 54 moves the thrust member 55 and thus the actuator 26, whereby the hinge is opened at least over a first portion of its opening path.

Key to the reference numbers: 1 Carcass hinge part 26 Actuator 2 Door leaf hinge part 27 Hole 3 Furniture carcass 28 Pin 4 Moving furniture part 29 Adjusting screw 5 Outer hinge arm 30 Spring 6 Inner hinge arm 31 Pin 7 Swivel axis 32 Transmission part 8 Swivel axis 33 Hole 9 Swivel axis 34 First side leg 10 Pivot axis 35 second side leg 11 cup-shaped recess 36 hole 12 screw hole 37 connecting web 13 hinge arm 38 pivot axis 14 first side leg 39 long hole 15 second side legs 40 axle bolts 16 spine 41 axle bolt 17 contact side 42 axle bolt 18 mounting plate 43 axle bolt 19 screw hole 44 hole 20 clip part 45 hole 21 adjustment screw 46th Hole 22 Eccentric screw 47 Hole 23 Eccentric screw 48 Pin 24 Function unit 49 Section

Claims (13)

9 AT 504 686 B1 50 Piston 51 Pinion 52 Motor 53 Transmission gear 54 Spring 55 Pusher 25 Housing Patent claims: 1. Double hinge hinge with a carcass hinge part (1) for attachment to a furniture carcass (3), a door leaf hinge part (2) for attachment on a movable furniture part (4), two hinge rods (5, 6) which are pivotally connected in each case on the one hand with the carcass hinge part (1), on the other hand with the door leaf hinge part (2), and one in the region of the carcass hinge part ( 1) arranged functional unit (24), in particular a damper or an opening and / or closing spring mechanism or a motor for opening and / or closing the hinge, which has a displaceable actuating element (26), wherein the functional unit (24) with at least one transmission part (32) is operatively connected, which is a separate from the hinge arms (5, 6) component and on the one hand to the door leaf hinge (2) fixed pivot axis (8) is pivotally mounted, on the other hand pivotally mounted about the carcass hinge part (1) guided pivot axis (38), characterized in that the functional unit (24) at least largely within the carcass hinge part ( 1) is arranged. 2. double hinge according to claim 1, characterized in that the pivot axis (8) about which the transmission part (32) on the door leaf hinge part (2) is pivotally mounted, with the pivot axis (8, 10) of the hinge link (5, 6 ) coincides. 3. double hinge hinge according to claim 1 or 2, characterized in that the door leaf hinge part (2) has a cup-shaped recess (11) into which the transmission part (32) protrudes with an end portion. 4. Doppellenkerscharnier according to one of claims 1 to 3, characterized in that the carcass hinge part (1) has a hinge arm (13) from which the pivot axis (38) of the transmission part (32) in the longitudinal direction of the hinge arm (13) slidably mounted is. 5. double link hinge according to claim 4, characterized in that by the hinge arm (13) slidably guided pivot axis (38) of a transmission part (32) mounted in at least one slot (39) of the hinge arm (13) displaceable mounted pin (48) is formed. 6. double hinge according to one of claims 1 to 5, characterized in that the hinge arm has a U-shaped cross-section with first and second side legs (14, 15) and with a carcass hinge part (1) on one side, the plant side ( 17) opposite, with the body hinge part (1) on the furniture body (3) can be applied, closing the back web (16). 7. double link hinge according to claim 5 and claim 6, characterized in that the pin (48) in slots (39) in the two side legs (14, 15) of the hinge arm (13) is displaceably mounted. 8. Doppellenkerscharnier according to one of claims 4 to 7, characterized in that the functional unit (24) on the hinge arm {13) is held. 1 0 ΑΤ 504 686 Β1 9. Doppellenkerscharnier according to claim 8, characterized in that the functional unit (24) holding the hinge arm (13) via a clip connection with a furniture body (3) attachable mounting plate (18) is connected. 10. double link hinge according to one of claims 1 to 9, characterized in that the transmission part (32) relative to the direction of the pivot axes (8, 38) of the transmission part (32) on both sides of the hinge link (5, 6) extending side legs (34, 35). 11. double hinge hinge according to claim 10, characterized in that the side legs (34, 35) of the transmission part (32) relative to the direction of the pivot axes (8, 38) of the transmission part (32) on both sides next to the side legs (34, 35) of the Hinge arm (13) extend. 12. double-link hinge according to one of claims 1 to 11, characterized in that the functional unit (24) is a damper with a by the actuating element (26) linearly displaceable against a damping medium piston (50). 13. double-link hinge according to one of claims 1 to 11, characterized in that the functional unit (24) has at least one of the actuating element (26) operable rotational damper. For this purpose 5 sheets of drawings