EP3143228A1

EP3143228A1 - Hinge

Info

Publication number: EP3143228A1
Application number: EP15721746.4A
Authority: EP
Inventors: Kai Michael Stuke
Original assignee: Hettich ONI GmbH and Co KG
Current assignee: Hettich ONI GmbH and Co KG
Priority date: 2014-05-16
Filing date: 2015-05-13
Publication date: 2017-03-22
Anticipated expiration: 2035-05-13
Also published as: AU2015261478A1; AU2015261478B2; CA2947069A1; US20170138106A1; RU2016146979A3; CN106460434A; EP3143228B1; KR20170007319A; US10370884B2; CA2947069C; RU2016146979A; WO2015173353A1; CN106460434B; DE102014106910A1; JP6592508B2; RU2673995C2; JP2017519137A; BR112016026589A2

Abstract

A hinge (4) comprises a hinge part (7), which can be secured on a door (3) of the shutter and is mounted on a side part (5) such that it can be pivoted via a carrying lever (8) and a guide lever (9), also comprises at least one spring (14), by means of which the hinge part (7), in a self-retracting region of the hinge (4), is prestressed into a closed position, and further comprises a linear damper (30) with a piston rod (31), which can be moved relative to a damper housing (32) and is intended for damping a closing and/or opening movement of the hinge part (7), wherein a deflecting element (15) is provided, said deflecting element being mounted on the side part (5) such that it can be rotated about an axis (16) and being arranged between the damper (30) and the guide lever (9) so that, during a closing movement of the hinge part (7), it moves the damper (30) in order to generate a damping force, wherein, during an opening movement of the hinge part (7), the deflecting element (15) moves the damper (30) in order to generate a damping force before the fully open position of the hinge part (7) has been reached. This makes it possible to avoid hard impact of a door in the opening direction.

Description

hinge

The present invention relates to a hinge with a hinged to a door or flap, in particular a piece of furniture or household appliance hinged part, which is mounted on a support lever and a guide lever pivotally mounted on a side part, at least one spring, by means of the hinge part in a Selbsteinzugsbereich of the hinge in a is biased closed position, and a linear damper with a movable relative to a damper housing piston rod for damping a closing and opening movement of the hinge part, wherein a deflection element is provided, which is rotatably mounted about an axis on the side part and disposed between the damper and the guide lever is to move during a closing movement of the hinge part, the damper for generating a damping force. EP 2 176 486 discloses a hinge in which a hinge part

is pivotally mounted on a side part, in which a linear damper is arranged. During a closing movement of the hinge part, the linear damper designed as a pressure damper is compressed and slows down the closing movement in order to prevent the door from being hit. Such a hinge has proven itself in practice and is often installed in different furniture. During an opening movement of the door, however, braking on a stop can ensure a considerable material load. It is therefore an object of the present invention to provide a hinge which ensures improved handling.

This object is achieved by a hinge with the features of claim 1.

According to the invention, the hinge has a deflecting element arranged between the guide lever and the linear damper, which moves the damper to produce a damping force during a closing movement of the hinge part and, during an opening movement of the hinge part, before reaching the maximum opening position of the hinge part Generation of a damping force moves. The linear damper is actuated via the deflecting element so that both a damping force during a closing movement of the hinge part before reaching the closing position and a damping force during an opening movement of the hinge part is generated shortly before reaching the maximum opening position. As a result, the linear damper can be used both for a closing damping and an opening damping. An opening movement of the hinge thus prevents striking when the maximum opening position is reached, since the opening movement is decelerated shortly before the opening position by the linear damper. This reduces the material load during a fast opening movement, since an abrupt braking in the maximum open position is avoided.

According to a preferred embodiment of the invention, the opening damping is effective at least in an angular range of at least 10 °, in particular at least 20 °, before the maximum opening position of the hinge part. Depending on the maximum opening position of the hinge part, which may for example be arranged at 90 °, 100 ° or 110 °, the beginning of the opening damping can be selected. At least damping over an angular range of more than 20 ° can ensure sufficient deceleration in the opening direction by the linear damper.

Preferably, the direction of the relative movement between the piston rod and the damper housing during a closing operation of the hinge in the closing damping region of the hinge is the same as the direction in which the hinge is opened in the opening damping region. The relative movement is a movement between the piston and the damper housing to understand, regardless of which of the two bodies is actually moved. It is also possible that both bodies move at the same time. If a pressure damper is used, which is when inserting the piston rod in the

Damper housing generates a damping force, therefore, the piston rod is preferably inserted into the damper housing both in the closing damping and in the opening damping. Conversely, when using a Zugdämpfers the piston rod in the damping region in each case pulled out of the damper housing, both in the opening damping and in the closing damping.

Preferably, the deflection element mounted on an axle leads in a movement of the fully closed position of the hinge part in the fully open position of the hinge part a pendulum motion. By pendulum motion is meant a movement that includes first in one direction a rotational movement and then a rotational movement in the opposite direction. The direction of movement of the oscillating movement of the deflecting element reverses from a movement from a fully closed position of the hinge part to the fully opened position of the hinge part between the closing damping area and the opening damping area. This allows the use of a single linear damper to provide both opening and closing damping.

Preferably, the stroke of the linear damper at a closing loss is greater than the stroke of the linear damper at an opening loss. At the same rotational speed of the hinge part relative to the side part thus the damping forces are greater when closing than when opening. Usually when opening the door this is easily braked, so that smaller damping forces can be selected, which are less disturbing for the user when it moves against the damping forces the door. The damper is preferably designed as a pressure damper, in which at

Inserting the piston rod in the damper housing higher damping forces are generated than when pulling out the piston rod from the damper housing. As a result, a particularly compact construction can be obtained since pressure dampers can be used in a short design.

In another embodiment, the damper is preferably designed as a tensile damper, in which when pulling the piston rod from the damper housing higher damping forces are generated than when inserting the piston rod in the damper housing. Preferably, the spring which biases the hinge in a self-retraction region of the hinge to the closed position is also designed as an opening spring, which moves the hinge part from an opening angle of the hinge in the fully open position. In another embodiment, this function can also be taken over by at least one separate opening spring, so that a closing spring and an opening spring are provided.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it: Figure 1 is a perspective view of a piece of furniture with two hinges according to the invention;

Figure 2 is an exploded perspective view of a hinge according to the invention;

Figures 3 to 7 show several detail views of the hinge of Figure 2 at

Opening and closing process;

Figure 8 is a diagram of the effective range of the damper;

Figure 9 is a diagram of the opening loss;

Figure 10 is a diagram for closing damping;

Figure 1 1 is a diagram for a pressure damper, and

Figure 12 is a diagram for a train damper.

A piece of furniture 1 comprises a cabinet-shaped furniture body 2, on whose side wall two hinges 4 are provided for the pivotable mounting of a door 3. Each hinge 4 comprises a mounting plate 6 which is fixed to a side wall of the furniture body 2, wherein a side part 5 of the hinge 4 is held on the mounting plate 6. On the side part 5, a hinge part 7 is pivotally mounted via a four-joint connection.

In Figure 2, the hinge 4 is shown in detail. The hinge 4 comprises the furniture body fixable mounting plate 6, on which an inner part 26 is fixed, which in turn serves to fix the side part 5. The side part 5 is movable relative to the mounting plate 6 and the inner part 26 via a first adjusting element 24 and a second adjusting element 25 in order to be able to align the position of the door 3 relative to the furniture body 2.

The side part 5 is box-shaped and comprises on opposite side walls openings 21, 22 and 23, which serve to support axes 20. The hinge part 7 comprises a pot-shaped receptacle 10, wherein on side walls of the cup-shaped receptacle 10 openings 1 1 and 12 are formed for axle elements 13. The shaft elements 13 are U-shaped and have a longer leg, which serves as a rotation axis for a support lever 8 or a guide lever 9. The support lever 8 is about the inserted into the opening 1 1 axis and the guide lever 9 is rotatably mounted on the inserted into the opening 12 axis of the hinge part 7.

Between the support lever 8 and the guide lever 9, a spring 14 is still arranged, which has two protruding legs and is designed as a suit spring. Via the spring 14, the hinge part 7 is biased in a self-retraction region of the hinge 4 in the closed position.

The support lever 8 is rotatably mounted on the side part 5 via an axis 20 which is inserted in the opening 21, while the guide lever 9 at the

Side part 5 is rotatably mounted about an axis 20 which is inserted into the opening 22. Spaced from the axes at the openings 21 and 22, an axis 16 is inserted into the opening 23 to rotatably support a deflecting element 15 about an axis 16. The deflecting element 15 is designed as a two-armed lever, wherein an axis 17 is provided for articulated connection with a lever 19 on a first lever arm. This is on the one hand articulated to the deflecting element 15 and on the other hand with a boom on the guide lever 9. The deflecting element 15 has a second arm, on which an axle 18 is provided, in order to connect the deflecting element 15 in an articulated manner to a damper 30, which is designed as a linear damper.

The damper 30 includes a piston rod 31 and a damper housing 32 in which a piston is disposed. By inserting and removing the piston rod 31, the piston is moved within the damper housing 32, whereby damping forces are generated when the piston rod 31 is pushed in, while the pulling out of the piston rod 31 takes place comparatively smoothly. The damper is thus designed as a pressure damper, which generates 31 damping forces substantially only when inserting the piston rod. The piston rod 31 is provided at the outer end with a connecting element 34 which is pivotally connected to the second arm with the axis 18 of the deflecting element 15. On the opposite side, the damper housing 32 is provided with a holder 33 for supporting the damper 30 in the side part 5 in an articulated manner. In order to fix the side part 5 on the mounting plate, a pivotable locking device 27 is also still provided.

In Figure 3, the hinge 4 is shown in a closed position in which the door 3 is held in a closed position. The hinge 4 is shown only schematically, since it essentially in the explanation of the opening and closing movement on the position of the hinge part 7 and the associated movement of the damper 30 arrives. In the closed position, the damper 30 is in the retracted position, in which the piston rod 31 is largely inserted into the damper housing 32. If the hinge 4 is now opened (FIG. 4), the hinge part 7 pivots according to the four-joint connection via the support lever 8 and the guide lever 9, wherein the schematically illustrated lever 19 rotates the deflection element 15 in a clockwise direction about the axis 16. As a result, the piston rod 31 is slightly pulled out of the damper housing 32, wherein the withdrawal of the piston rod 31 is smooth, so that hardly a braking effect is felt when opening. The hinge part can be moved together with the door 3 according to Figure 5 further in the opening direction, wherein the piston rod 31 is further pulled out of the damper housing 32 by the mechanism described above.

If the door 3 is moved further in the opening direction between the position shown in FIG. 5 and FIG. 6, the piston rod 31 is barely moved relative to the damper housing 32 so that the opening movement can take place smoothly.

If the door 3 is now pivoted into the maximum open position, as shown in FIG. 7, the pivoting of the support lever 8 and of the guide lever 9 causes the deflection element 15 to pivot counterclockwise, so that the piston rod 31 again enters the damper housing 32 is inserted. When inserting the piston rod 31 in the damper housing 32 damping forces are generated, which ensure a slowing down the opening movement of the door 3. If the door 3 is now moved from the maximum opening position back in the closing direction, the piston rod 31 is first pulled out of the damper housing 32, wherein the withdrawal of the piston rod 31 is smooth, so that hardly any forces are felt by the user. Subsequently, the positions according to FIGS. 6, 5, 4 are traversed, whereby at from a certain angle range, the piston rod 31 is inserted back into the damper housing 32, as shown in Figures 4 and 3. As a result, a closing damping sets in by the damper 30 generates damping forces before reaching the closed position.

In Figure 8, the range of the closing attenuation α and the opening loss ß is shown schematically. During pivoting of the hinge part 7 relative to the side part 5, closing damping can be effected via the damper 30 in an angular range α before reaching the closed position, for example in a range between 0 ° and 30 °. Furthermore, an opening damping is effected via the damper 30 before reaching a maximum opening position in an angular range .beta. The opening damping can be effected, for example, in a range of at least 10 °, in particular at least 20 °, before reaching the maximum opening position. The maximum opening position can be 80 ° to 120 °, depending on the hinge type. In a central region between the closing attenuation α and the opening damping ß of the damper 30 is essentially ineffective, so as not to hinder an opening or closing of the door 3. The central region in which the damper 30 is ineffective can be, for example, between 45 ° and 70 °.

In Figure 9, the opening loss is shown schematically. When opening the door 3 initially hardly act forces through the damper 30, apart from negligible friction losses when pulling out the piston rod 31st Only at an angular range of about 60 ° to 65 °, the damping force increases, up to the maximum opening position, which was selected in Figure 9 at 90 °. The opening loss is thus effective in a range between 65 ° and 90 ° substantially.

In Figure 10, the closing loss is shown in a diagram. When closing the door 3 substantially no forces act through the damper 30 up to an angular range of 45 °, except for negligible friction forces. Only before reaching a closed position, for example in an angle range between 0 ° and 35 °, the damper 30 is effective, the damping forces are greatest shortly before reaching the closed position, so that a door 3 is braked sufficiently at least shortly before reaching the closed position, to avoid impact noise. With regard to the closing movement, it should also be noted that the spring 14 in a self-tightening area moves the door 3 to the closed position. The self-tightening area may be, for example, in a range between 0 ° to 40 °. In FIG. 11, the piston stroke of a damper 30 is shown over the angular range. The damper 30 is designed as a pressure damper, so that it has a retracted into the damper housing 32 piston rod 31 in the closed position. The piston rod 31 is then pulled out of the closed position during an opening movement, wherein the piston stroke is greater in an initial angle range between 0 ° and 30 ° than in a central region. The piston rod 31 is then retracted shortly before reaching the maximum opening position in the damper housing 32, as shown schematically in Figure 1 1.

If a damper is used instead of a pressure damper, the result is a piston stroke, as shown in FIG. In a closed position, the piston rod 31 is then first extended out of the damper housing 32 and is then retracted when moving the hinge 4. The damping forces then arise when pulling out the piston rod from the damper housing.

In the illustrated embodiment, the deflecting element is connected directly to the piston rod 31 of the damper 30. Of course, it is also possible to provide one or more components between the deflecting element and the damper, without modifying the mechanical working principle of the hinge. The deflecting element 15 is also connected via a lever 19 to the guide lever 9. It is also possible to connect the deflection element 15 directly to the support lever 8 or the guide lever 9 or to arrange further levers or components therebetween without changing the mechanism of the hinge 4 according to the invention.

Instead of the damper 30 designed as a pressure damper, it is also possible to use a draft damper by means of which an opening and closing damping can likewise be effected.

The damper 30 can also be designed to be adjustable in order to be able to adapt the damping forces to the weight of the respective door 3. Corresponding mechanisms and adjusting mechanisms are known. In addition, the

Damper also have more components than the damper housing and a piston rod, for example, a piston rod may be provided on opposite sides of the damper, which is then inserted or withdrawn into the damper housing. In another embodiment, the spring 14 biases the hinge part 7 in a self-opening area in an opening direction, preferably with the same spring 14 biasing the hinge part 7 in the self-retraction area of the hinge 4 into a closed position. By the bias in the opening direction, a door or flap can be kept in a predetermined opening position. The bias in the opening direction can be done, for example, from an opening angle of 45 °, in particular of more than 60 ° or 70 ° to the maximum opening position.

List of reference furniture

furniture body

door

hinge

side panel

mounting plate

hinge part

support lever

guide lever

0 recording

1 opening

2 opening

3 axle element

4 spring

5 deflecting element

6 axis

17 axis

18 axis

19 lever

0 axis

1 opening

2 opening

3 opening

24 adjusting element

25 adjusting element

26 inner part

27 latching device

30 dampers

31 piston rod

32 damper housing

33 holders

34 Connecting element α angle range closing damping

ß Angle range opening loss

Claims

claims

1 . Hinge (4), having a hinge part (7) which can be fixed to a door (3) or flap and which is mounted pivotably on a side part (5) via a support lever (8) and a guide lever (9), with at least one spring (14 ) by means of which the hinge part (7) is biased in a self-closing range of the hinge (4) to a closed position, and with a linear damper (30) with a relative to a damper housing (32) movable piston rod (31) for damping a closing - And / or opening movement of the hinge part (7), wherein a deflecting element (15) is provided which is rotatably mounted about an axis (16) on the side part (5) and between the damper (30) and the guide lever (9) in order, during a closing movement of the hinge part (7), to move the damper (30) to generate a damping force, characterized in that during an opening movement of the hinge part (7) the deflecting element (15) reaches the maximum opening pos ition of the hinge part (7) moves the damper (30) to generate a damping force.

2. Hinge according to claim 1, characterized in that the opening damping at least in an angular range (ß) of at least 10 °, in particular at least 20 °, before the maximum opening position of the hinge part (7) is effective.

3. Hinge according to claim 1 or 2, characterized in that the

Direction of the relative movement between piston rod (31) and damper housing (32) in a closing operation of the hinge (4) in the closing damping area (a) of the hinge (4) is the same direction as in the opening operation of the hinge (4) in the opening damping area (ß) ,

4. Hinge according to one of the preceding claims, characterized in that the deflecting element (15) mounted on an axle executes a pendulum motion upon movement from the fully closed position of the hinge part (7) to the fully open position of the hinge part (7).

5. Hinge according to claim 4, characterized in that the direction of movement of the oscillating movement of the deflecting element (15) in a movement of the fully closed position of the hinge Part (7) in the fully open position of the hinge part (7) between the Schließdämpfungsbereich and the Öffnungsdämpfungsbe- rich reverses.

6. Hinge according to one of the preceding claims, characterized in that the movement of the piston rod (31) of the damper (30) in the closing damping is greater than the movement of the piston rod (31) of the damper (30) during the opening movement.

7. Hinge according to one of the preceding claims, characterized in that the stroke of the damper (30) at a closing loss is greater than the stroke of the damper (30) at an opening loss.

8. Hinge according to one of the preceding claims, characterized in that the rotatably mounted deflecting articulated with the

Damper (30) or a coupled to the damper (30) component is connected.

9. Hinge according to one of the preceding claims, characterized in that the deflecting element is pivotally connected to the guide lever (9) or to the guide lever (9) connected to the component (19).

10. Hinge according to one of the preceding claims, characterized in that the damper is designed as a pressure damper, the relative insertion of the piston rod (31) in the damper housing (32) generates higher damping forces than when pulling out the piston rod (31) from the Damper housing (32).

1 1. Hinge according to one of the preceding claims, characterized in that the damper is designed as a tensile damper which generates relative to the relative extension of the piston rod (31 from the damper housing (32) higher damping forces than when inserting the piston rod (31) in the damper housing (32).

12. Hinge according to one of the preceding claims, characterized in that at least one spring biases the hinge part (7) in a self-opening area in an opening direction, wherein Preferably, the same spring (14) biases the hinge part (7) in the self-retraction region of the hinge (4) to a closed position.