EP1647206A2 - Telescoping slide for a pull-out furniture part - Google Patents

Abstract

The telescopic mounting rail for a drawer (5) comprises a swiveling cam (6) which is mounted on the central rail (2). This cooperates with the drawer rail (3) as the drawer (5) is withdrawn.

Description

The present invention relates to a telescopic drawer rail for a pull-out furniture part, according to the preamble of claim 1.

Such pull-out rails, which are usually used in pairs, are well known. They serve to pull the pull-out furniture part, such as a drawer, over its entire depth from the furniture body.

In order to ensure a synchronization and uniform loading of the furniture part, by tilting and lowering of the furniture part is prevented, the middle rail and the drawer rail are coupled on a trajectory of the furniture part to each other by the respective drag element, which corresponds approximately to the length of the carcass rail.

In a further extension of the furniture part, the towing element is disengaged, so that the center rail remains in this position, while the drawer rail can be moved to an end position in which the furniture part is completely pulled out of the furniture body.

The mentioned even load is particularly important in so-called heavy-load extracts, since in this case the pull-out rail is exposed to particularly high loads, resulting from weight and dynamics.

In addition, as a rule, the pull-out rails are equipped with self-retracting damper units which are effective between the drawer rail and the carcass rail in which, for example, a unit mounted on the carcass rail cooperates with a mounted on the drawer rail activator and the furniture part shortly before its closed position automatically and dampens pulls into the closed position.

There are known pull-out rails, in which the towing element is designed as an elastic, resilient scissor-shaped part, but whose functionality is limited insofar as it deforms at higher loads or gives up its locking position prematurely. In addition, proper functionality is only given if impairments of lubricant, abrasion and changes in shape can be excluded, which is not possible in practice, so that the mobility and thus the functionality of this drag element can not be permanently guaranteed.

In a further known pull-out rail two drag elements are provided, one of which is fixed to one end face of the center rail.

This drag elements are pivotally supported on a pivot pin and either spring-loaded or so stiff that they do not tip out of their toggle position prematurely, which is particularly difficult to achieve when the center rail is slidably slidable only in the carcass rail. A defined same movement of the pull-out pairs is therefore not guaranteed.

Next, a drawer rail according to the species is known in which the dragging element consists of a leaf spring which engages positively in the drag position in the drawer rail and is pressed in a further withdrawal against the spring force in the carcass rail.

The present invention is based on the object of further developing a pull-out rail of the generic type such that functionality is improved with structurally simple means and the service life is increased.

This object is achieved by a pull-out rail having the features of claim 1.

An educated in this sense pull-out rail is also suitable and straight for use in a heavy-duty pullout, which has at least three raceways for rolling elements in the form of balls or rollers.

In this case, the new drawer rail is characterized in particular by the fact that the ent and locking movement of the towing element is controlled exclusively by the relative movement of the individual rail parts to each other, while this, as described, in the prior art by material-dependent restoring forces.

Since no restoring forces have to be overcome during the back and forth operation of the rail parts, the displacement movements have no influence on the effectiveness of inserted self-closing damper units, which require a very precise balance between balance and damping and / or self-closing for proper functioning. The new, so to speak compulsory control mechanism works so completely neutral.

According to an advantageous embodiment of the invention, it is provided to set the cam on the center rail so that it rests in the unlocked position out of engagement with the drawer rail on the carcass rail at a slope or throat.

Here, therefore, the cam has a support in an end position, which allows the cam so far freely to attach to the center rail.

The cam itself can be designed differently, for example lever-shaped or disk-shaped. Essential is the eccentricity, by means of which when moving the rail parts, depending on the displacement, a pivoting movement takes place about the middle rail side axis.

Advantageous developments of the invention are characterized in the subclaims.

Embodiments of the invention will be described below with reference to the accompanying drawings.

Figur 1

ein Ausführungsbeispiel einer erfindungsgemäßen Auszugschiene im Querschnitt gemäß der Linie A - A in Figur 2

Figur 2

die Auszugsschiene nach Figur 1 in einem Längsschnitt sowie die Darstellung einiger Einzelteile in der Auszugsschiene

Figuren 3 bis 6

jeweils Ausführungsbeispiele einer Einzelheit der Auszugsschiene jeweils im Querschnitt

Figur 7

verschiedene Auszugsstellungen der Auszugsschiene in einer Seitenansicht

Figur 8

eine vergrößerte Darstellung der in der Figur 7 oberen Position

Figur 9

einen vergrößerten Ausschnitt der Auszugsschiene nach Figur 8

Figur 10

die vergrößerte Abbildung der mittleren Stellung in Figur 7

Figur 11

eine vergrößerte Einzelheit der Auszugsschiene nach Figur 10

Figur 12

eine vergrößerte Darstellung der Auszugsschiene entsprechend der unteren Position in Figur 7

Figur 13

die eine vergrößerte Einzelheit der Auszugsschiene nach Figur 12

Figur 14

ein weiteres Ausfiihrungsbeispiel der Erfindung in einer Seitenansicht

Figur 15

das Ausführungsbeispiel nach Figur 14 in verschiedenen Auszugspositionen

Figur 16

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Auszugsschiene in einer Seitenansicht

Figur 17

unterschiedliche Auszugspositionen der Auszugsschiene nach Figur 16

Figur 18

ein weiteres Ausführungsbeispiel der Auszugsschienen in einem Querschnitt

Figur 19

eine Einzelheit der Auszugsschiene in verschiedenen Ansichten

Figur 20

die Auszugsschiene nach Figur 18 einer Seitenansicht

Figur 21

einen vergrößerten Teilausschnitt der Auszugsschiene nach Figur 20

Figur 22

eine veränderte Auszugsposition der Auszugsschiene nach Figur 18 in einer Seitenansicht

Figur 23

eine vergrößerte Einzelheit der Auszugsschiene nach Figur 22

Figur 24

eine Einzelheit der Auszugsschiene nach Figur 23

Figur 25

eine weitere Auszugsposition der Auszugsschiene nach Figur 18 in einer Seitenansicht

Figur 26

eine vergrößerte Einzelheit der Auszugsschiene nach Figur 25

Figur 27

ein weiteres Ausführungsbeispiel der Erfindung in einem Querschnitt

Figur 28

eine Einzelheit der Auszugsschiene nach Figur 27 in verschiedenen Ansichten

Figur 29

eine eingeschobene Position der Auszugsschiene nach Figur 27 in einer Seitenansicht

Figur 30

einen vergrößerten Teilausschnitt der Auszugsschiene gemäß Figur 29

Figur 31

die Auszugsschiene nach Figur 27 in einer halbausgezogenen Position in einer Seitenansicht

Figur 32

eine vergrößerte Einzelheit der Auszugsschiene der Position gemäß der Figur 31

Figur 33

die Auszugsschiene nach Figur 27 in einer vollständig ausgezogenen Position in einer Seitenansicht

Figur 34

eine vergrößerte Einzelheit der Auszugsschienen gemäß Figur 33

Figur 35

ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Auszugsschiene in einem Querschnitt

Figur 36

die Auszugsschiene nach Figur 35 in einer eingeschobenen Position in einer Seitenansicht

Figur 37

eine vergrößerte dargestellte Einzelheit der Auszugsschiene nach Figur 36

Figur 38

die Auszugsschiene nach Figur 35 in einer halbausgezogenen Stellung einer Seitenansicht

Figur 39

eine vergrößerte Einzelheit der Auszugsschiene nach Figur 38

Figur 40

die Auszugsschiene in vollständig ausgezogener Stellung in einer Seitenansicht

Figur 41

eine vergrößerte Einzelheit der Auszugsschiene gemäß Figur 40

Figur 42

einen Schnitt durch eine Einzelheit der Auszugsschiene nach Figur 35

Figur 43

eine Einzelheit der Auszugsschiene nach Figur 35 in einer perspektivischen Ansicht

Figur 44

die Einzelheit nach Figur 43 in verschiedenen Darstellungen

Show it:

FIG. 1

An embodiment of a pull-out rail according to the invention in cross-section along the line A - A in Figure 2

FIG. 2

the drawer rail of Figure 1 in a longitudinal section and the representation of some items in the drawer rail

FIGS. 3 to 6

Each embodiment of a detail of the drawer rail in each case in cross section

FIG. 7

various extract positions of the pull-out rail in a side view

FIG. 8

an enlarged view of the upper position in Figure 7

FIG. 9

an enlarged section of the pull-out rail of Figure 8

FIG. 10

the enlarged illustration of the middle position in Figure 7

FIG. 11

an enlarged detail of the pull-out rail of Figure 10

FIG. 12

an enlarged view of the drawer rail according to the lower position in Figure 7

FIG. 13

an enlarged detail of the pull-out rail of Figure 12th

FIG. 14

a further Ausfiihrungsbeispiel of the invention in a side view

FIG. 15

the embodiment of Figure 14 in different pullout positions

FIG. 16

a further embodiment of a pull-out rail according to the invention in a side view

FIG. 17

different pull-out positions of the pull-out rail according to FIG. 16

FIG. 18

a further embodiment of the pull-out rails in a cross section

FIG. 19

a detail of the drawer rail in different views

FIG. 20

the drawer rail of Figure 18 a side view

FIG. 21

an enlarged partial section of the pull-out rail of Figure 20

FIG. 22

a modified pull-out position of the pull-out rail of Figure 18 in a side view

FIG. 23

an enlarged detail of the pull-out rail of Figure 22

FIG. 24

a detail of the drawer rail of Figure 23

FIG. 25

a further extension position of the drawer rail of Figure 18 in a side view

FIG. 26

an enlarged detail of the pull-out rail of Figure 25

FIG. 27

a further embodiment of the invention in a cross section

FIG. 28

a detail of the drawer rail of Figure 27 in different views

FIG. 29

an inserted position of the pull-out rail of Figure 27 in a side view

FIG. 30

an enlarged partial section of the pull-out rail according to FIG 29

FIG. 31

the drawer rail of Figure 27 in a semi-withdrawn position in a side view

FIG. 32

an enlarged detail of the pull-out rail of the position according to the figure 31

FIG. 33

the drawer rail of Figure 27 in a fully extended position in a side view

FIG. 34

an enlarged detail of the pull-out rails according to Figure 33

FIG. 35

a further embodiment of a pull-out rail according to the invention in a cross section

FIG. 36

the drawer rail of Figure 35 in an inserted position in a side view

FIG. 37

an enlarged detail shown the pull-out rail of Figure 36

Figure 38

the drawer rail of Figure 35 in a half-extended position of a side view

FIG. 39

an enlarged detail of the pull-out rail of Figure 38

FIG. 40

the drawer rail in fully extended position in a side view

FIG. 41

an enlarged detail of the pull-out rail according to FIG. 40

Figure 42

a section through a detail of the pull-out rail of Figure 35

FIG. 43

a detail of the drawer rail of Figure 35 in a perspective view

FIG. 44

the detail of Figure 43 in different representations

All figures show a telescopic drawer rail for a pull-out furniture part 5, such as a drawer, or items of this drawer rail.

In its basic structure, the pull-out rail consists of at least three relative to each other by means of rolling elements 4 axially displaceable rail parts, namely a carcass rail 1 which is attachable to a furniture body, not shown, for. B. by screwing, attached to the carcass rail 1 center rail 2 and connected to the furniture part 5, connected to the center rail 2 drawer rail. 3

Attached to the center rail 2 is a towing element in the form of a cam 6, which is approximately triangular in the example shown in FIGS. 1 to 13, whereby it releases by means of a pivot 9 in the region of its tip formed by the two legs on the middle rail 2 is arranged pivotally. In this case, the cam 6 extends, starting from the pivot pin 9 in the extension direction of the furniture part. 5

As can be seen particularly clearly in FIG. 2, a control rail 7 is fastened to the drawer rail 3, specifically in relation to the extension direction in the rear region of the drawer rail 3.

At the front end, the control rail 7 is provided with a Andruckschräge 11, in the closed position of the furniture part 5, a leg of the cam 6 is applied, wherein the slope 11 and the associated leg of the cam 6 are rectilinear. Moreover, the cam 6, based on the length of the center rail 2 is arranged approximately in the middle.

On the underside of the freely rotatable cam 6 is supported by a control bar 8 which extends to the control rail 7 in the opposite direction and which forms a support for the cam 6 for the travel distance in which the drawer rail 3 and the center rail 2 are pulled out together. During the displacement of the entrained cam 6 slides on the control bar. 8

The control rail 7 and the control bar 8 are also shown in the figure 2 as a detail, as the cam. 6

Different configurations of the control bar 8 can be seen in FIGS. 3 to 6, wherein it is clipped onto a limb of the angular body rail 1 in accordance with FIG. 3 as a plastic part, while it is molded or glued on as a plastic part according to FIG. FIG. 5 shows the control bar 8 as angled formed on the carcass rail 1, while in FIG. 6 the control bar 8 is designed as a sheet metal bracket and fastened to the carcass rail 1 by welding, riveting, screwing, embossing or the like.

In the figure 2 it can be clearly seen that the control bar 8 on its side facing away in the retracted position of the furniture part of the control rail 7 end side has a slope 10, whose function is clear from the illustrations in the figure 7.

Here are several abstract positions of the furniture part 5 are shown, wherein a) the furniture part 5 inserted inserted into the furniture body, while b) the furniture part 5 is half pulled out and c) the furniture part 5 is fully extended.

When you take off the furniture part 5, the cam 6 is initially a barrier that can not be run over by the drawer rail 3 and the permanently connected control rail 7. Rather, the center rail 2 is dragged with the drawer rail 3, up to a front area in which the slope 10 of the control bar 8 allows the cam 6 to move downwards, so that the drawer rail 3 and thus the furniture part 5 can be extended further, while maintaining the middle rail 2 in this for her final position.

The individual displacement positions a), b) and c) correspond to those in Figures 8 and 9, 10 and 11 and 12 and 13, which illustrate the facts even clearer.

When inserting the fully extended furniture part is initially a relative displacement of the drawer rail 3 on the center rail 2 until the furniture part abuts the middle rail 2, in which case the control rail 7 occupies a position in which the Andruckschräge 11 is above the cam 6, so that at further insertion of the furniture part 5 of the cam is pivoted by sliding on the slope 10 upwards and a common displacement of the drawer rail 3 and the middle rail 2 to an inserted end position is possible.

In the embodiments shown in Figures 14 and 15, the cam 6 has a recess 12 in which in the closed position of the furniture part 5 engages a connected to the drawer rail 3 pin 13, wherein the recess 12 is formed so that upon rotation of the cam 6, a slight sliding out of the pin 13 from the formed positive connection is possible.

In FIG. 15, positions of the pull-out rail are shown with a), b) and c), corresponding to those shown in FIGS. 7 a), b) and c).

A modification of the cam 6 of Figures 14 and 15 is shown in Figures 16 and 17, wherein the cam 6 is designed disc-shaped and has a substantially rectangular outwardly provided notch 16, which serves to support the control rail 7, by the entrainment the middle rail 2 takes place.

To limit the pivoting path in the extended position (Figure 17c) in the cam 6, a gate 14 is provided, in which a connected to the middle rail 2 slide pin 15 is guided, wherein the slide guide 14 is curved according to the pivot radius.

In the figure 17 a) to c) are shown according to the figures in Figure 15 a) to c) the different extended positions of the pull-out rail.

FIGS. 18 to 26 show a further alternative of the pull-out rail according to the invention, in which the middle rail 2 has an approximately S-shaped cross-section and the cam 6 is designed in the sense of a pawl which has a pawl pin 18 at its free end. In the figure 19, the cam 6 is shown in different views.

For latching the center rail 2 with the drawer rail 3, the pawl pin 18 is in a recess 19 of the drawer rail 3 a (Figures 20 and 21) until both rails are moved together to the end of the carcass rail 1.

At the associated end of the carcass rail 1, a throat 17 is arranged, in which then the pawl pin 18 falls under the release of the Auszugsweges for the drawer rail 3 (Figures 22, 23). In the figure 24, the throat 17 is a detail shown, the rest in their function of the slope 10 of the control bar 8 (Figure 2) corresponds.

In such a control bar as well as on a control rail 7 can be omitted in the realization of this embodiment, since the driving function is carried out by the drawer rail 3 itself. This embodiment of the pull-out rail is characterized in particular by the fact that the cam 6 rests relatively well protected.

In the figures 27 to 34, a pull-out rail is shown, in which the cam 6 is also designed as a pawl, but at its free, pivotable end directed downwards with a support lug 20 and upwards with the pawl pin 18 is provided. Both the pawl pin 18 as well as the support lug 20 extend to the furniture body facing the outside, the support lug 20 in half (Figures 31 and 32) or fully (Figures 33, 34) extended position rests in a recess 21 of the rail 1, the is dimensioned so that the drawer rail 3, the cam 6 and the pawl pin 18 can drive over freely. This is incidentally for entrainment of the center rail 2 to a half-extended position (Figures 31, 32) in the recess 19 which is provided in the drawer rail 3, and also on the connection side on the furniture body of the carcass rail 1 side facing.

It can also be seen, in particular in FIG. 28, that the pivot pin 9 is slotted axially, so that a simple clip connection with the middle rail 2 can be produced.

In the embodiments shown in Figures 35 to 44, the rolling elements 4 are formed as rollers and the cam 6 is arranged protected in the central region between the carcass rail 1 and the drawer rail 3.

For attachment to the center rail 2, a holder 22 is provided, on which the cam 6 is rotatably mounted.

For entrainment of the center rail 2, the cam 6 is supported on the one hand on the carcass rail 1 and on the other hand it protrudes into an opening 24 of the drawer rail 3, which abuts with a wall on the associated leg of the approximately triangular cam 6, the rest in its form the corresponds, as shown in Figure 2 and described.

FIGS. 36 to 41 show different positions of the pull-out rail 1, with the carcass rail 1 in the end region of the pull-out having a bevel 10, comparable to that on the control bar 8 shown in FIG.

In FIGS. 42 to 44, the holder 22 is shown in different positions. It can be seen that the holder 22 has two mounting pins 26, with which it is attached to the center rail 2. Opposite, a bearing pin 23 is formed, for receiving the cam 6, which has a clamping jaw 25 for better mounting, through which the cam 6 must be clipped only on the bearing pin 23. Incidentally, the cam 26 is also formed triangular and the clamping jaw 25 is provided in the corner forming the tip.

LIST OF REFERENCE NUMBERS

1

cabinet member

2

middle rail

3

Drawer rail

4

rolling elements

5

furniture part

6

cam

7

control rail

8th

control bar

9

pivot

10

slope

11

Andruckschräge

12

recess

13

pen

14

scenery

15

link pin

16

score

17

throat

18

ratchet pin

19

recess

20

support lug

21

deepening

22

holder

23

pivot

24

perforation

25

clamping mouth

26

fastening pins

Claims (19)

Telescopic pull-out rail for a pull-out, arranged on a furniture body furniture part (5), with at least three relative to each other, preferably by means of rolling elements axially displaceable rail parts, one of the furniture body fixable carcass rail (1), an attached thereto center rail (2) and one with the furniture part (5) connectable, connected to the center rail drawer rail (3), wherein on the center rail (2) a dragging element is attached, depending on the travel path of the furniture part (5) positively corresponds to the drawer rail, characterized in that the towed element as a cam (6) arranged freely pivotably on the middle rail (2) is formed. Pull-out rail according to Claim 1, characterized in that the cam (6), with respect to the length, is arranged approximately in the middle region of the middle rail (2). Puller rail according to claim 1 or 2, characterized in that the cam is approximately triangular in shape, wherein the legs spread in the pull-out direction, while the bearing is provided on the center rail (2) in the region formed by the two legs tip. Pull-out rail according to one of the preceding claims, characterized in that the cam (6) in the pushed-in or half-extended position is supported with one leg on the carcass rail (1) and with its other on the front side in the extension direction one with the drawer rail (3). firmly connected control rail (7). Pull-out rail according to one of the preceding claims, characterized in that a control bar (8) is connected to the carcass rail (1), against which the cam (6) bears against a leg. Pull-out rail according to one of the preceding claims, characterized in that the largest width of the cam (6) is greater than the distance between the control rail (7) and the control bar (8). Pull-out rail according to one of the preceding claims, characterized in that the cam (6) associated with the end face of the control rail (7) is formed as Andruckschräge (11). Pull-out rail according to one of the preceding claims, characterized in that the front end in the extension direction of the control bar (8), starting from the contact surface of the cam (6) is chamfered. Pull-out rail according to one of the preceding claims, characterized in that the control strip (8) consists of a plastic part which is clipped onto the carcass rail (1) or adhesively bonded thereto. Pull-out rail according to one of the preceding claims, characterized in that the control bar (8) is integrally formed integrally with the carcass rail (1) or is connected as an angular profile with the carcass rail (1). Pull-out rail according to one of the preceding claims, characterized in that the cam (6) has a recess (12) into which a pin (13) fastened thereto engages during the displacement of the drawer rail (3). Pull-out rail according to any one of the preceding claims, characterized in that the cam (6) is designed as an eccentric disk, which at its outer edge a notch (16) into which the control rail for the simultaneous displacement of the drawer rail (3) and the center rail (2) (7) or another part attached to the drawer rail (3) engages. Pull-out rail according to one of the preceding claims, characterized in that the eccentric cam cam (6) is provided with a slotted guide (14) which is curved in accordance with the swivel radius and in which a slide pin (15) of the middle rail (2) is guided. Pull-out rail according to one of the preceding claims, characterized in that the cam (6) is designed as a pawl and at its free end a pawl pin (18) which rests to the drag function in a recess (19) of the drawer rail (3). Pull-out rail according to one of the preceding claims, characterized in that the carcass rail (1) has on its front side in the extension direction a throat (17), in which the pawl pin (18) rests in the unlocked position. Pull-out rail according to one of the preceding claims, characterized in that the cam (6) designed as a pawl is provided with a support nose (20) which in the unlocked position of the cam (6) rests in a recess (21) of the carcass rail (1). Pull-out rail according to one of the preceding claims, characterized in that the recess (19) or the recess (21) on the connection side of the body rail (1) facing side are provided. An extension rail according to any one of the preceding claims, characterized in that the triangular cam (6) is fixed to a holder (22) connected to the center rail (2). Pull-out rail according to one of the preceding claims, characterized in that the holder (22) has a bearing pin (23) on which the cam (6) is clipped.

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