EP2555655B1 - Ejection device and pull-out guide - Google Patents

Description

The present invention relates to an ejection device with the features of the preamble of claim 1 and a pullout guide.

The EP 2 174 571 discloses an ejection device for a pullout guide in which an activator held on the track rail can be coupled with a catch. The driver is movably mounted along a guide housing. In order to lock the driver in a closed position, a latching mechanism is provided in which a sleeve-shaped control element along a sleeve-shaped control cam is movable. The control can be latched along the control cam. In this ejection device, although a compact design is achieved in the locking mechanism, but the transferable by the control holding forces are limited. In addition, when moving along the cam, the control may turn too far due to vibration or gravity, which can cause malfunction.

WO 2008/047537 A discloses an ejection device according to the preamble of claim 1.

It is therefore an object of the present invention to provide an ejection device that can also accommodate high holding forces in the closed position and reliably allows snapping and locking and unlocking.

This object is achieved with an ejection device with the features of claim 1.

According to the invention, an axis of rotation of the control element is inclined relative to the direction of movement of the activation element relative to the guide device aligned, and the control rests in a closed position with a stop on a holder. This allows the control to assume a holding function, wherein the stop surfaces can be designed to be stable.

According to a preferred embodiment of the invention, the axis of rotation of the control element extends substantially perpendicular to the direction of movement of the activation element relative to the guide device. This also high holding forces can be absorbed, since the control disk is loaded perpendicular to the axis of rotation and forces in the closed position can be removed via the axis and the holder, without the control disk is rotated. Low inclination angle of the control disk, for example, 10 to 20 ° to a plane perpendicular to the direction of movement of the activation element are possible.

In order to switch the control stepwise, the latching mechanism preferably has a first switching cam, by means of which the control disk is rotatable during insertion of the activating element against the force of at least one energy accumulator from the closed position. This first switching cam can rotate the control disk in the next switching position and thereby cause an unlocking.

The latching mechanism preferably also comprises a second switching cam, by means of which, upon insertion of the activating element against the force of at least one energy accumulator, it can be rotated from an opening position of the control element. This second switching cam can rotate the control in the next switching position and thereby cause a lock.

The first and / or second switching cam causes, for example, a rotation of the control element when the carriage is moved beyond the closed position against the force of the at least one energy accumulator, so that after a caused by the first switching cam rotation of the control of the energy storage the activation element in the opening direction can move beyond the closed position and after a caused by the second switching cam rotation of the energy storage, the activation element slightly in the opening direction, however, can only move back to the closed position.

Although the arrangement of two switching cams is sufficient for the functionality of the unlocking or locking of the latching mechanism, however, a third switching cam is preferably provided, by means of which the control is rotatable in a movement of the activating element in the opening direction. This ensures that after unlocking and only a slight movement of the activation element in the opening direction a re-locking can not be done yet, but only when the activation element has traveled a predetermined distance in the opening direction. The control thus assumes after unlocking initially a neutral switching position, from which it can be further rotated neither by the first nor by the second switching cam. This is advantageous if for Example, in a drawer, which is equipped on both sides with a respective ejection device according to the invention by pressing an unlocking only one locking mechanism takes place, while on the other side no unlocking has been achieved. Then re-locking the already unlocked locking mechanism is effected by repressing the drawer again.

According to the invention, the control element can be latched in different rotational or switching positions. As a result, the switching positions of the control can be secured by latching. Preferably, if a neutral shift position is also to be given, the control element can be latched in three or an integral multiple of three shift positions, that is, for example, latched in six, nine, twelve or more shift positions. Of course, more than three different switching positions or a corresponding integer multiple are possible, in which the control is rotatable. In particular, with a number of more than two different switching positions, it is advantageous that the control element according to a further embodiment of the invention is always in one, that is rotatable in the same direction. As a result, a reverse rotation or pivoting back of the control in the opposite direction of rotation after reaching the last switching position in the first switching position is not required. Instead, the first switching position can be reached in a simple manner by further rotation of the control element after the last switching position of a switching cycle.

The locking mechanism of the ejection device may comprise a carriage which can be moved along the guide device and on which the activating element is formed. The carriage can also be formed integrally with a rail of a pullout guide or another movable component. The control element, in the form of a control disk, can also be mounted on the carriage, wherein the holder and / or at least one switching cam is then expediently formed on the guide device. For locking the control disk may be formed on the carriage, for example, a resiliently mounted locking lug, which is insertable in annularly arranged on the control disk locking recesses.

For example, at least one control cam or switching teeth are formed on the control disc designed as a control, which cooperates with at least one switching cam. Advantageously, however at least one control cam is provided which cooperates with at least two switching cam. As a result, the control disk can have a relatively compact construction. However, there is also the possibility that at least one switching cam can rotate the control disk in at least two different switching positions, for example, in which it interacts several times depending on the position and / or the direction of movement of the activation element or the carriage with a control cam of the control disk and / or cooperates with different control curves of the control disk. If a plurality of control cams are formed on the control disk, they can be arranged in different planes of the control disk extending perpendicular to the axis of rotation.

The guide device of the ejection device is designed, for example, in several parts and has a stop for the activation element or the carriage in the opening direction and / or in the closing direction. The guide device may be formed by a multi-part guide housing, on which one or more spaced rods are provided, on which the carriage is guided. On the rods then the energy storage can be stored in the form of a coil spring. Alternatively or additionally, other guide principles than rods, such as tongue and groove or dovetail joints, as well as other types of force accumulators, such as tension springs, are possible with regard to the guide device.

According to one embodiment, the activating element may be preceded in the opening direction by a locking element, which is in particular movable along the guide device together with the activating element, and which can be coupled to the movable component such that the movable component can be locked when the latching mechanism is in the closed position located. The locking element can be mounted on the carriage.

In a further embodiment, the tumbler element is pivotably mounted on the carriage. The tumbler element can have a protruding nose which can be inserted in a recess or a receptacle on the movable component, in particular the movable component of a pullout guide. This can be done in a simple manner a coupling of the locking element with the component and a decoupling. For example, the tumbler element is resiliently mounted in the closed position and can pivot at an occurring in the opening direction overload, for which a particular case of overload-yielding area is provided in the bottom of the guide means, so that the movable member is thereby decoupled from the tumbler and thus the lock releasably is. As a result, damage to the locking mechanism and in particular the control disk and / or the locking element is avoided by high tensile forces.

Preferably, the locking element is positively guided along a guideway. This allows a gravity-independent and reliable guidance of the locking element for coupling and decoupling with a rail of a pullout guide.

The three switching cams for moving the control disk are formed integrally with a housing part in an advantageous embodiment. As a result, the switching cams can be positioned particularly accurately and increase the switching reliability. In addition, the assembly of the ejector is facilitated.

For an exact switching of the control disk it can be provided on the circumference with locking means which cooperate with further locking means of a lever on the carriage. As a result, a precise latching of the control disk can take place, since the control disk is rotatably mounted on the carriage, on which the latching means are also provided.

According to the invention, a pull-out guide is also provided, in which a running rail can be coupled to the activation element of an ejection device according to the invention. When "coupling" can be done both a one-sided investment as well as a multi-sided embrace. The ejection device can be arranged, for example, between the guide rail, also known as carcass rail, and the movable running rail, so that no additional space for the ejection device is required on a piece of furniture.

Figur 1

eine perspektivische Ansicht der Ausstoßvorrichtung in der Schließposition;

Figuren 2 bis 4

mehrere Explosionsdarstellungen der Ausstoßvorrichtung der Figur 1 aus unterschiedlichen Perspektiven;

Figuren 5A und 5B

zwei perspektivische Ansichten der Steuerscheibe der Ausstoßvorrichtung der Figur 1;

Figuren 6 und 7

zwei Ansichten der Ausstoßvorrichtung der Figur 1 in der Schließposition;

Figuren 8 und 9

zwei Ansichten der Ausstoßvorrichtung der Figur 1 bei der Entriegelung;

Figuren 10 bis 12

mehrere Ansichten der Ausstoßvorrichtung der Figur 1 in einer Öffnungsposition;

Figur 13

eine Ansicht der Ausstoßvorrichtung der Figur 1 beim Verriegeln;

Figuren 14 bis 18

mehrere Ansichten einer Auszugsführung mit einer erfindungsgemäßen Ausstoßvorrichtung;

Figur 19

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Ausstoßvorrichtung im montierten Zustand;

Figuren 20 und 21

zwei Explosionsdarstellungen der Ausstoßvorrichtung der Figur 19;

Figuren 22 bis 25

mehrere Detailansichten der Ausstoßvorrichtung der Figur 19, und

Figuren 26 und 27

mehrere Ansichten der Ausstoßvorrichtung der Figur 19 vor und nach dem Einkoppeln mit einer Schiene einer Auszugsführung.

The invention will be explained in more detail using an exemplary embodiment with reference to the accompanying drawings. Show it:

FIG. 1

a perspective view of the ejection device in the closed position;

FIGS. 2 to 4

several exploded views of the ejector of FIG. 1 from different perspectives;

FIGS. 5A and 5B

two perspective views of the control disc of the ejection device of FIG. 1 ;

FIGS. 6 and 7

two views of the ejector of the FIG. 1 in the closed position;

FIGS. 8 and 9

two views of the ejector of the FIG. 1 when unlocked;

FIGS. 10 to 12

several views of the ejection device of FIG. 1 in an open position;

FIG. 13

a view of the ejector of FIG. 1 when locking;

FIGS. 14 to 18

several views of a pullout guide with a discharge device according to the invention;

FIG. 19

a perspective view of another embodiment of an ejection device according to the invention in the assembled state;

FIGS. 20 and 21

two exploded views of the ejector of FIG. 19 ;

FIGS. 22 to 25

several detailed views of the ejection device of Figure 19, and

FIGS. 26 and 27

several views of the ejection device of FIG. 19 before and after coupling with a rail of a pullout guide.

An ejection device 1 comprises a carriage 20 which is linearly movable along a guide device 10. The guide device 10 comprises two spaced-apart parallel rods 11 which are arranged between one end-side first housing part 12 and a second housing part 14 are held. On the housing part 12 are eyelets 13 and on the housing part 14 eyelets 15 are also provided for the storage of the rods 11. Arranged around each rod is a force accumulator in the form of a helical spring 2, which is supported at one end on the lugs 13 of the first housing part 12 and on the opposite side on sleeves which surround the rod 11 and are connected to the carriage 20 via arms 21 ,

An activation element 26 in the form of a protruding nose, which forms a stop for a movable component, for example for a running rail of a pullout guide, is formed on the carriage 20 on the one hand. On the other hand, the activation element 26 is mounted upstream in the opening direction on the carriage 20, a locking element 40 which has a protruding nose 41 which can be inserted into a receptacle of a component to be moved. The locking element 40 can be coupled to this component, preferably a running rail of a pullout guide, thereby locking the movable member when the latching mechanism is in the closed position.

In the FIGS. 2 to 4 the ejector is shown in exploded views. The second housing part 14 comprises a bottom 18, which is partially omitted in the following views for simplified representation, so that in particular the control disk 30, which will be described in more detail below, is recognizable in their different switching positions. Rastmittet 16 are provided in the form of locking webs at the end of the bottom 18, which can be latched into corresponding receptacles on the first housing part 12. In addition, the bottom 18 has a yielding region 18a, which will be described in more detail below. Further holding elements 19 are provided, which also engage in corresponding receptacles of the first housing part 12.

The two rods 11 each have a slot 17 at the facing areas of their lateral surfaces, through which a web is guided which connects the respective arm 21 to an inner rod 22. The inner rod 22 is guided in the cylindrical cavity of the respective rod 11. As a result, the carriage 20 is secured against tilting and / or tilting during a linear movement.

The locking element 40 has an axle 42 which is inserted into a bearing 24 on the carriage 20. Adjacent to the bearing 24 for the locking element 40, a spring bar 25 is provided on the carriage 20, which is arranged on the rear side on a projection 43 of the locking element 40 and can exert a restoring force on the locking element 40 via this projection 43. As an alternative to the illustrated embodiment, the tumbler element 40 can be connected to the carriage 20 in a different manner, and in particular resiliently and / or pivotably, instead of via the axis 42 and the bearing 24. It is conceivable, for example, the use of an elastomer. Furthermore, instead of being parallel, the pivot axis can also run perpendicular to the base surface of the bottom 18, so that the locking element 40 executes a correspondingly different pivoting movement. If the connection between the locking element 40 and the carriage is already designed to be resilient, this can also replace the spring bar 25.

On the carriage 20, a rotation axis 23 is also provided for rotatably supporting the control disk 30. The axis of rotation 23 extends substantially perpendicular to the opening direction or to the direction of movement of the carriage 20 and substantially perpendicular to the base of the bottom 18. On the carriage 20 adjacent to the axis of rotation 23, a resilient latching lug 27 is formed, which in locking recesses 37 of Control disk 30 can engage. The locking recesses 37 are arranged annularly about the axis 23, so that the control disk 30 can be locked in different stages or switching positions.

On the second housing part 14, a holder 3 in the form of a projection is formed adjacent to the first housing part 12. Adjacent to the holder 3, a first switching cam 4 for rotating the control disk 30 is provided. On the first housing part 12, a second switching cam 5 is provided for rotating the control disk 30. In addition, on the opposite side of the second housing part 14 adjacent to the eyelets 15, a third switching cam 6 is also provided for rotating the control disk 30 is provided.

In the FIGS. 5A and 5B the control disk 30 is shown in detail. The control disk 30 comprises a disk 31 on which on one side a first control cam 32 with four radially projecting teeth, each with a stop surface 33 is formed. On the side remote from the disc 31 side of the control cam 32, a second control cam 34 is formed, which expediently has a smaller diameter than the first control cam 32 and also four radially projecting abutment surfaces 35 forms, which are arranged offset in the example shown to the abutment surfaces 33. On the opposite side of the disc 31 four formed as projections projections 36 are formed, which extend substantially parallel to the axis of rotation. Further, on this side of the control disk about a central opening 39 for receiving the axis 23 in the control disk 30 annular twelve locking recesses 37 formed on the control disk 30, each having a run-on slope 38 on one side.

In the FIGS. 6 and 7 a closing position of the carriage 20 is shown, in which the latching mechanism of the ejection device 1 is locked. In this position, the holder 3 bears against a stop 36 of the control disk 30, so that the control disk 30 together with the carriage 20 can not be moved in the opening direction by the force of the springs 2. The first switching cam 4 is disposed adjacent to a stop surface 33 of the first control cam 32.

The locking element 40 is resiliently mounted in the closed position of the latching mechanism and can pivot at an overload occurring in the opening direction. For this purpose, a region 18a which gives way under overload is formed on the bottom 18 of the guide device 10. Thus, a release of the movable member from the locking of the locking element is ensured at high tensile load. To support this release in the event of an overload, the nose 41 of the locking member 40, unlike shown in the figures, be bevelled on the activation element 26 side facing. As a result, damage to the locking mechanism and in particular the control disk 30 and / or the locking element 40 is avoided by high tensile forces.

If the carriage 20 are unlocked, this is pressed against the force of the springs 2, for example by pressing a drawer, so that in the FIGS. 8 and 9 shown position is reached. The carriage 20 strikes against a portion of the second housing part 14 and also the control disk 30 is rotated because the first switching cam 4 presses against the abutment surface 33. As a result, the control disk rotates by 30 ° and is locked in the next rotational position, for which purpose the latching nose 27 engages in the next adjacent latching recess 37 on the control disk 30. As a result, the stopper 36 comes out of engagement with the holder 3, so that now the carriage 20 and by means of the activation element 26 also to be moved Component, such as the running rail of a pullout guide, can be pressed freely in the opening direction by the force of the springs 2.

If the carriage 20 is only slightly moved in the opening direction and then pushed back into the closed position, a lock can not be done, because neither the first switching cam 4 nor the second switching cam 5 rotates the control disk 30, so that a lock is not possible. Only when the carriage 20 is moved along the guide device to the third switching cam 6, there is a further rotation of the control disk, as shown in the FIGS. 10 to 12 is shown. The third switching cam 6 presses against a stop surface 33 of the first control cam 32. By turning the control disk 30 in the next switching position, the locking lug 27 is locked in the next adjacent recess 37th

When the carriage 20, after it has been moved in the opening direction, as in the FIGS. 10 to 12 shown, the end rests against the second housing part 14, the locking element 40 is moved over a run-on slope 9 and can be pivoted back 25 with the cooperation of the spring bar. As a result, the lug 41 is lowered together with the locking element 40 and can be disengaged from a recess on a component to be moved, so that this component can now be moved freely.

If now the ejector be brought back into the closed position, engages the component to be coupled against the activation element 26 and pushes the carriage 20 together with the control disk 30 and the locking member 40 in the closing direction, whereby the locking member 40 is forcibly guided by the run-on slope 9 and the projection 41 is pushed up into a recording. As a result, the component is coupled to the locking element 40 and thus to the latching mechanism. The carriage 20 can be moved against the force of the springs 2 until the in FIG. 13 shown position is reached. In this position, the second switching cam 5 acts on a stop surface 35 of the second control cam 34. As a result, the control disk 30 is rotated again by 30 ° and the latching lug 27 is in turn latched to the next adjacent latching recess 37. By turning the control disk 30 reaches a stop 36 behind the holder 3, so that the control disk 30 can no longer be pressed by the force of the springs 2 on the closed position in the opening direction. At the same time, the resilient first switching cam 4 engages behind a stop surface 33 on the first control cam 32. By means of the nose 41 of the locking element 40, the coupled movable Locked component in the closed position, thus preventing its movement in the opening direction.

If the carriage 20 is first moved again in the closing direction or inserted against the force of the springs 2, the first switching cam 4 presses directly onto the abutment surface 33 and thus ensures a further rotation for unlocking, as has already been described above.

In FIGS. 14 to 18 For example, an ejection device according to the invention is mounted on a pull-out guide 50 by way of example. The pullout guide 50 comprises a stationarily arranged guide rail 51, also called a carcass rail, and a movable running rail 52. Optionally, in the pullout guide, at least one middle rail may additionally be provided, which however is not shown in the figures.

In the in FIG. 15 In the position shown, the ejector is with the carriage 20 in an opening movement and the activation element 26 presses against a plate-shaped activator 53 which is fixed to the running rail 52. The activator 53 comprises a rectangular recess 54, in which the nose 41 of the locking element 40 engages.

If the carriage 20 and with it the running rail 52 moves further in the opening direction, the locking element 40 comes to the run-on slope 9 and lowers by a now possible pivoting back together with the spring bar 25 and the projection 43 on the guide rail 51 from, as in the FIGS. 16 to 18 shown. As a result, the nose 41 comes out of the recess 54 on the activator 53 and the running rail 52 is decoupled from the locking element 40 and thus from the locking mechanism of the ejection device. As a result, the running rail 52 can now be moved freely on the guide rail 51.

In FIG. 17 is the usually to the body of a furniture facing rear of the pullout guide shown with the guide rail 51 having a recess on which the run-on slope 9 and the locking member 40 with the back projection 43 can be inserted. As a result, a particularly compact design of the pullout guide 50 can be obtained.

If the running rail 52 is moved in the closing direction, one edge of the activator 53 comes against the activating element 26 and presses the carriage 20 in Closing direction. As a result, the locking element 40 is pivoted about the axis 42 when the locking element 40 is moved over the run-on slope 9. As a result, the nose 41 engages in the recess 54. By coupling the locking element 40 with the running rail 52, it can be locked in the closed position of the locking mechanism and thus a, for example, mounted on the running rail drawer, which, however, is not shown in the figures, are locked.

As in FIG. 18 is shown, the ejection device does not protrude beyond the running rail 52 and the guide rail 51, but is arranged between them. On the front side, a bracket 57 is provided on the guide rail 51, so that the first housing part 12 is supported.

In FIG. 19 a further embodiment of an ejection device 1 according to the invention is shown, which is mounted on a pullout guide 50. The pullout guide 50 comprises a guide rail 51, on which a running rail 52 is movably held. On the running rail 52, a recess 54 is formed, which is coupled to a nose 41 of a locking element 40 '.

The ejection device 1 is in the Figures 20 and 21 shown in detail, wherein the same functional components have been provided with the same reference numerals as in the first embodiment.

The ejection device 1 comprises a housing part 14, projecting on the two eyelets 15, on each of which a rod 11 is held. On the opposite side of the rod 11, a further housing part 12 is provided, which also has eyes 13 for the end-side fixation on the rods 11. To the rods 11 coil springs 2 are mounted, which act on a carriage 20 '. The carriage 20 'comprises sleeves 21 on arms, on each of which an inner rod 22 is arranged, which is guided in the rods 11.

On the carriage 20 ', a control disk 30' is rotatably mounted, which has on one side protruding stops 36 ', which cooperate with a holder 3. On the opposite side of the control disk 30 ', a first control cam 32 and a second control cam 34 are formed, which cooperate with switching cams 4, 5 and 6 as in the previous embodiment.

Control cams 4, 5 and 6 are integrally formed with the housing part 14, which also includes the holder 3 for fixing the control disk 30 'in a closed position. As a result, the switching cams 4, 5 and 6 and the holder 3 are positioned exactly to one another. The housing part 14 is connected to the housing part 12 via webs 16 '.

As in the enlarged view of FIG. 22 is shown, the control disk 30 'on the circumference recesses 37', which serve to lock the control disk 30 '. For this purpose, a lever 61 is integrally formed with the carriage 20 ', which has a thickened head portion 66 and engages in a latched position in a recess 37'. The length of the lever 61 is selected so that a sufficient elasticity of the locking means is present. On the carriage 20 'also holder 45 are formed, on which the locking element 40' is pivotally mounted. For fixing the control disk 30 ', a latching hook 62 is also provided.

In FIG. 23 and 24 the ejector is shown in an open position. The carriage 20 'rests with the sleeves 21 on the eyelets 15. The locking element 40 'is out of engagement with a running rail 52. If the running rail 52 is now moved in the closing direction, moves the carriage 20' in a closed position, as in FIG. 25 is shown. In this case, switching of the control disk 30 'via the first switching cam 4, so that a stop 36' is fixed to the holder 3 and the carriage is secured against movement in the opening direction. Only by re-impressions of the carriage 20 in the closing direction is a switching by the second switching cam 5, so that the control disk 30 'is released and can be moved by the force of the spring 2 in the opening direction. On the opposite side a third switching cam 6 is provided to the control disk 30 'to continue to rotate.

In the Figures 26A and 26B the ejector is shown prior to coupling with a track rail 52. The running rail 52 is moved in the closing direction and strikes with the front end of the rail against a stop 26 'as an activating element, as in FIG. 19 is shown. As a result, the carriage 20 'is moved in the closing direction and the locking element 40' pivoted upward until in the Figures 27A and 27B shown position is reached. Then the nose 41 of the locking element 40 'is arranged in the recess 54 and the carriage 20' can now be moved further to the holder 3 in the direction of the closed position.

When the carriage 20 'is now unlocked, the locking element 40' moves along a guide track 47, which is formed integrally with the housing part 14. In the guide track 47, a hook 46 of the tumbler element 40 'is arranged, which provides for a displacement of the tumbler element 40' for a positive guidance, so that the tumbler element 40 'forcibly pivoted relative to the carriage 20', since the guide 47 relative to the direction of movement the carriage is arranged inclined. As a result, regardless of gravity and other environmental influences, the locking element 40 'can be forcibly guided in order to couple it to the running rail 52 or to release it.

In the embodiment shown, the control disk 30 'twelve switching positions in which a locking takes place. It is of course possible to provide fewer or more switching positions. In addition, the number of cams 32 and 34 is variable. The shape of the switching cams 4, 5 and 6 can be chosen freely within wide ranges, as long as this switching of the control disk 30 'can be effected. Finally, the guide device 10 may comprise more or fewer housing parts than the two housing parts 12 and 14.

The ejection device can also be used for hinges or doors and linearly movable furniture elements, such as sliding doors or drawers, instead of a drawer slide.

The control disk 30 'may, unlike in the illustrated embodiment, instead of the carriage 20' also on the guide device or a housing part, approximately at the bottom 18, be rotatably mounted, then expediently the holder and / or at least one switching cam on the Carriage or another along the guide device movable member is formed.

LIST OF REFERENCE NUMBERS

1

ejector

2

coil spring

3

holder

4

switching cams

5

switching cams

6

switching cams

9

starting slope

10

guide means

11

pole

12

housing part

13

eyelets

14

housing part

15

eyelets

16

latching web

17

slot

18

ground

18a

yielding ground area

19

retaining element

20, 20 '

carriage

21

Sleeve with a boom

22

inner bar

23

axis of rotation

24

storage

25

spring bar

26

energizer

27

locking lug

30, 30 '

control disc

31

disc

32

cam

33

Tooth with a stop surface

34

cam

35

stop surface

36

attack

36 '

attack

37

engaging recess

37 '

recess

38

starting slope

39

opening

40, 40 '

tumbler

41

nose

42

axis

43

head Start

45

holder

46

hook

47

guideway

50

pull-out guide

51

guide rail

52

runner

53

activator

54

recess

57

hanger

61

lever

62

latch hook

66

header

Claims (17)

1. Ejection device, in particular for a pull-out guide, comprising an activation element (26, 26') which can be moved along a guide unit (10), and a latching mechanism by means of which the activation element (26, 26') can be latched on the guide unit (10) against the force of at least one energy accumulator (2), wherein the latching mechanism has a rotatably mounted control element (30, 30') and an axis of rotation of the control element (30, 30') is oriented in an inclined manner to the direction of movement of the activation element relative to the guide unit (10), and, in a closed position, the control element (30, 30') bears with a stop (36) against a holder (3), characterized in that the control element (30, 30') is designed as a control disc and can be latched in different switching positions.
2. Ejection device according to Claim 1, characterized in that the axis of rotation of the control element (30, 30') extends substantially perpendicularly to the direction of movement of the activation element (26, 26') relative to the guide unit (10).
3. Ejection device according to Claim 1 or 2, characterized in that it is prestressed via at least one energy accumulator (2) in an opening direction, wherein the activation element (26, 26') can be coupled to a moveable component (51), and can be locked by the latching mechanism in a closed position against the force of the at least one energy accumulator (2).
4. Ejection device according to one of the preceding claims, characterized in that the latching mechanism has a first switching cam (4) by means of which the control element (30, 30') can be rotated when pushing in the activation element (26) against the force of the at least one energy accumulator (2) out of the closed position, and the latching mechanism has a second switching cam (5) by means of which the control element (30, 30') can be rotated when pushing in the activation element (26, 26') against the force of the at least one energy accumulator (2) out of an opening position.
5. Ejection device according to Claim 4, characterized in that the first and/or the second switching cam (4, 5) causes a rotation of the control element (30, 30') when the activation element (26, 26') is pushed in beyond the closed position against the force of the at least one energy accumulator (2).
6. Ejection device according to Claim 4 or 5, characterized in that the latching mechanism has a third switching cam (6) by means of which the control element (30, 30') can be rotated during a movement of the activation element (26, 26') in the opening direction.
7. Ejection device according to one of the preceding claims, characterized in that the control element (30, 30') can be latched in three or in an integral multiple of three switching positions.
8. Ejection device according to one of the preceding claims, characterized in that the control element (30, 30') is always rotatable in the same direction.
9. Ejection device according to one of the preceding claims, characterized in that the latching mechanism comprises a carriage (20) which can be moved along the guide unit (10), on which carriage the activation element (26, 26') is formed, and the control disc (30, 30') is mounted on the carriage (20).
10. Ejection device according to one of the preceding claims, characterized in that the holder (3) and/or at least one switching cam (4, 5, 6) is formed on the guide unit.
11. Ejection device according to Claim 9, characterized in that a resiliently mounted latching lug (27) is formed on the carriage (20) and can be inserted into annularly arranged latching cutouts (37) on the control disc (30, 30').
12. Ejection device according to one of the preceding claims, characterized in that at least one control cam (32) is formed on the control disc (30, 30') and interacts with at least one switching cam (4, 5, 6), in particular with at least two switching cams (4, 6).
13. Ejection device according to one of the preceding claims, characterized in that the guide unit forms a stop for the activation element (26) and/or the carriage (20) in the opening direction and/or in the closed direction.
14. Ejection device according to one of the preceding claims, characterized in that a locking element (40, 40') is arranged upstream of the activation element (26) in the opening direction, which locking element can be moved together with the activation element (26) along the guide unit (10), wherein the locking element (40, 40') is preferably pivotably mounted on a carriage (20).
15. Ejection device according to Claim 14, characterized in that the locking element (40, 40') has a lug (41) which can be inserted into a cutout (54) of the moveable component (51), and, in the closed position, the locking element (40, 40') is resiliently mounted, in particular on a compliant base region (18a), and, during an overload in the opening direction, the locking element (40, 40') pivots and unlocks the moveable component (51).
16. Ejection device according to either of the preceding Claims 15 and 16, characterized in that the locking element (40') is positively guided along a guide path (47).
17. Pull-out guide (50) comprising a guide rail (51) and a moveable running rail (52), characterized in that the running rail (52) is coupled to an activation element (26, 26') of an ejection device according to one of the preceding claims and the ejection device is arranged between the guide rail (51) and the running rail (52).

Images