EP2801685A2 - Roller support for a fitting for a sliding door - Google Patents

Abstract

In a roller carrier (1) of a sliding door fitting having a support (3) which can be fastened to a sliding door (2) and which carries a roller (4) which rolls along a guide (8) of a profile body (7) which can be fastened to a body of a sliding door cabinet, and a Aushebsicherung with a safety cam (17) which engages in a securing position a securing portion (10) of the profile body (7) such that the roller (4) can not be separated from the guide (8), and of the Fuse position is displaced into a release position in which the roller (4) of the guide (8) is separable, the safety cam (17) when hanging the sliding door (2) can escape from its securing position elastically against a restoring force, which restoring force the safety cam (17) displaced back into the securing position, according to the invention the safety cam (17) from one end of a horizontal web (6 ) of the U-shaped support (3) about a pivot axis (16) pivotally mounted pivot lever (15) formed, the roller (4) facing arm (18) has a control slope (20), which when hanging the sliding door (2) on Secured portion (10) runs up to pivot the pivot lever (15) against the elastic restoring force.

Description

The invention relates to a roller carrier of a sliding door fitting with a fastened to a sliding carrier, which carries a roller which rolls along a guide of a fastened to a body of a sliding door cabinet profile body, and having a lift-off with a safety cam, in a securing position, a securing portion of Under such a profile body engages that the roller can not be separated from the guide, and which is displaceable from the securing position into a release position in which the roller is separable from the guide, the safety cam when hanging the sliding door from its securing position elastic against a restoring force can escape, which restoring force shifts the safety cam back to the securing position.

Roller bearer carriers for sliding door fittings are used, for example, in the DE 20 2005 007 687 U1 or DE 20 2004 019 098 U1 described.

The DE 20 2005 007 687 U1 describes a roller carrier with a U-shaped plate, one U-leg can be attached to the inside of a sliding door and the other U-leg carries a roller which is guided in a guide groove of a guide rail. In order to prevent the sliding of this, a sliding door outer wing supporting roller carrier from the rail, a safety catch is provided, which is designed as a pivot lever. The pivot lever carries at its free end a safety cam, which engages in the securing position a bondage rib of the profile body forming the rail. By pivoting the as a pivot lever trained Aushebsicherung can be the safety cam in a release position to pivot.

The DE 20 2004 019 098 U1 describes an associated inner door roller carrier whose mounting plate is fixed to the inside of an inner sliding door leaf. The lift-out is designed here as a slide which is displaceable from a release position in which the slide is spaced from the roller in a securing position in which the slide is below the guide trough in which the roller runs.

The DE 20 2011 000 952 U1 describes a roller carrier of the generic type. Vertically below the roller sits on a mounting plate, a pivotable lever. The free end of the lever forms a safety cam, which engages under the roller guide groove of the rail in a safety position. It can be pivoted to a release position to separate the roller from the guide. During assembly, the safety cam abuts against a side edge of the guide channel and is thereby displaced from the contour plane of the roller, so that the roller can be hung in the guide channel. The pivot lever is spring-loaded, so that it can assume its securing position after insertion of the roller in the guide channel again.

The invention has the object of the above-mentioned roller carrier for an inner door leaf or an outer door wing with simple means so manufacturing technology to pivot that their safety cams automatically pivot into the securing position or that an inner door leaf or an outer door wing with placed in the securing position safety catch can be used in the respective guide, the safety cams automatically take their operative position.

The object is achieved first by the invention specified in claim 1, which relates to a roller carrier for an outer wing of a sliding door cabinet. The securing cam is formed by one end of a swivel lever pivotally mounted about a pivot axis on a horizontal web of the U-shaped carrier. Whose arm facing arm has a control slope, which runs when hanging the sliding door on the securing portion to pivot the pivot lever against the elastic restoring force. The pivot lever pivots in such a way about its pivot axis, that the safety cam is brought from the securing position. The control slope runs in a downward displacement of the roller carrier in particular on a bondage rib of the profile body. The safety cam is steered past the edge of the bondage rib until the safety cam has completely overrun the bondage rib. An upwardly facing flattening of the securing cam, which is opposite to the control bevel, is then pivoted back by the elastic restoring force-generating elastic element into a sub-grip position under the binding rib. The control slope is preferably formed by a plane which is inclined relative to the securing position of the safety cam both in the extension direction of the guide and in a horizontal transverse direction thereto. The restoring force is preferably formed by a spring tongue, which is integrally formed integrally with the pivot lever. The pivot lever is formed by a plastic. The spring tongue can be attached with one end on the pivot lever. The other end of the spring tongue can be free. The spring leg of the spring tongue may have a projection, for example a pin, which is in an opening of the horizontal web protrudes. The free end of the spring tongue can form a hook, which can engage behind a latching step of the pivot lever. This rear grip takes place in a clamping position of the spring tongue, so that the spring tongue assumes a non-operative position. In this non-action position, the pivot lever can be pivoted from the securing position into the release position. Since the spring tongue is held by the latching step behind the hooks in a Nichtwirkstellung, it does not act on the pivot lever in the direction of the securing position, so that the pivot lever remains in the release position.

The claim 7 relates to a roller carrier for an inner wing of a two-leaf sliding door cabinet. The safety cam sits here on a main body of a slider. The slide is displaceable along the mounting plate. It can be moved between two locking positions, with one locking position of the release position and the other locking position corresponds to the securing position. The at least one safety cam can shift against the elastic restoring force relative to the main body. It is in particular of the same material connected to the preferably made of plastic base body. The main body is only displaceable relative to the mounting plate. In a preferred embodiment of the invention, the base body relative to the mounting plate is not tilted. The at least one safety cam is connected via spring hinges with the slider. In the securing position, the at least one safety cam is located below the plane of rotation of the roller. If the roller carrier is to be suspended in the groove of its profile body associated with its roller, then the lower edge of the roller must be lifted over the edge of the channel. In this case, the at least one safety cam occurs against the outer edge of the guide channel and is pivoted about the spring hinge. This is done with simultaneous application of a tension in which the spring hinge forming Material. As soon as the roller or the roller carrier is lowered, so that the roller is seated on the bottom of the channel, the at least one elastically bent safety cam slides along the outer wall of the channel body until it has reached a fully engaged undercut position under the channel body. He then takes his backup position. The slider is preferably held in its securing position with a releasable catch. A latching arm can form a latching hook, which engages in one of the two latching niches. If the latching arm is pivoted against a handle arm, then the latching hook comes out of the latching niche. The slider can be moved down into a release position in which the at least one safety cam has such a distance to the underside of the roller that the roller can be lifted out of the guide channel. There are preferably provided two each pivotable about a spring hinge locking cam. There may be a projection between the spaced safety cams. The safety cams project obliquely from the sliding displacement direction of the slider. The projection is integrally formed on the base body and rigidly connected to the base body. It forms, together with the base body, a parallel to the surface of the support plate extending top, against which project the safety cams in the securing position. The safety cams can be pivoted to below this top around the spring hinge.

According to the embodiment of a roller carrier according to the invention, the roller carrier can be mounted both in a variant for an outer door leaf as well as in a variant for an inner door wing with displaced in the securing position or pivoted Aushebsicherungsglied. The respective safety cam pivots against the elastic restoring force in a temporary evasive position, in which the roller assigned to the guide can be. If the roller is assigned to the guide, the safety cam is displaced back into the securing position by a stretched elastic element during deflection. Both the roller carrier for an inner door leaf and the roller carrier for an outer door wing of the safety cam is held by a materially connected to the safety cam spring element in the securing position, wherein the spring element is a bending plastic part.

Fig. 1

einen Laufrollenträger für eine Außentür eines zweiflügeligen Schiebetürschranks in einer Seitenansicht mit in Sicherungsstellung befindlicher Aushebesicherung,

Fig. 2

eine Draufsicht auf den Laufrollenträger gemäß Figur 1 in der Sicherungsstellung der Aushebesicherung,

Fig. 3

eine Darstellung gemäß Figur 2, wobei die Aushebesicherung jedoch in eine Freigabestellung verschwenkt ist,

Fig. 4

eine Frontansicht auf den Laufrollenträger,

Fig. 5

eine Darstellung gemäß Figur 1 beim Einhängen der Laufrolle 4, wobei die Laufrolle 4 vertikal oberhalb der ihr zugeordneten Führungsrinne 8 angeordnet ist und eine Steuerschräge 20 des Sicherungsnockens 17 auf einer Fesselungsrippe 10 liegt,

Fig. 6

eine Draufsicht entsprechend dem in Figur 7 dargestellten Zustand,

Fig. 7

eine Folgedarstellung nach einer Absenkung des Laufrollenträgers aus der in Figur 5 dargestellten Stellung, wobei der die Aushebesicherung ausbildende Schwenkhebel 15 dadurch verschwenkt ist, dass die Steuerschräge 20 an der Randkante der Fesselungsrippe 10 aufläuft,

Fig. 8

eine Darstellung gemäß Figur 2 jedoch in der Freigabestellung der Aushebesicherung, in der eine Federzunge 21 in einer inaktiven Stellung am Schwenkhebel 15 verrastet ist,

Fig. 9

einen Laufrollenträger 40 für eine Innentür eines zweiflügeligen Schiebetürschranks mit in einer Führungsrinne 9 eingehängter Laufrolle 4 und einer als Schieber 42 ausgebildeten Aushängesicherung in der Sicherungsstellung,

Fig. 10

eine Ansicht auf den Laufrollenträger 40 in Richtung auf die Laufrolle 4 und auf den Schieber 42,

Fig. 11

eine Rückansicht des Laufrollenträgers, wobei der Schieber 42 von einem in eine Rastnische 38 eingreifenden Rasthaken 49 in einer Sicherungsstellung gehalten ist,

Fig. 12

eine Darstellung gemäß Figur 11, wobei jedoch durch Verschwenken eines Rastarmes 50 der Rasthaken 49 aus der Raststellung gebracht ist,

Fig. 13

eine Darstellung gemäß Figur 12, wobei der Schieber 42 in seine Freigabestellung verlagert ist und dort durch Eingriff des Rasthakens 49 in die Rastausnehmung 35 gehalten wird,

Fig.14

eine Darstellung gemäß Figur 10 jedoch in der Freigabestellung,

Fig. 15

eine Darstellung gemäß Figur 9 in der Freigabestellung und

Fig. 16

eine Montagestellung in einer Darstellung gemäß der Figuren 9 bzw. 15, wobei die Laufrolle 4 oberhalb der ihr zugeordneten Führungsrinne 9 angeordnet ist und der Sicherungsnocken 44 an einem Sicherungsabschnitt 45 anstößt und durch Aufbringen einer Vertikalkraft derart verformt ist, dass die Laufrolle 4 in die ihr zugeordnete Führungsrinne 9 einsetzbar ist.

Embodiments of the invention are explained below with reference to accompanying drawings. Show it:

Fig. 1

a roller carrier for an outer door of a two-leaf sliding door cabinet in a side view with safety device located in the securing position,

Fig. 2

a plan view of the roller carrier according to FIG. 1 in the securing position of the lifting protection,

Fig. 3

a representation according to FIG. 2 However, the lift-out is pivoted in a release position,

Fig. 4

a front view of the roller carrier,

Fig. 5

a representation according to FIG. 1 when hanging the roller 4, wherein the roller 4 is arranged vertically above its associated guide groove 8 and a control slope 20 of the securing cam 17 is located on a bondage rib 10,

Fig. 6

a plan view according to the in FIG. 7 illustrated state,

Fig. 7

a following illustration after a lowering of the roller carrier from the in FIG. 5 illustrated position, wherein the lifting lever forming pivoting lever 15 is pivoted by the fact that the control slope 20 runs up to the edge of the bondage rib 10,

Fig. 8

a representation according to FIG. 2 However, in the release position of the lift-off, in which a spring tongue 21 is locked in an inactive position on the pivot lever 15,

Fig. 9

a roller carrier 40 for an inner door of a two-leaf sliding door cabinet with a roller 4 suspended in a guide groove 9 and a slide-out safety device in the securing position,

Fig. 10

a view of the roller carrier 40 in the direction of the roller 4 and the slider 42,

Fig. 11

a rear view of the roller carrier, wherein the slider 42 is held by a latching niche 38 engaging in a locking hook 49 in a securing position,

Fig. 12

a representation according to FIG. 11 , wherein, however, by pivoting a latching arm 50 of the latching hook 49 is brought out of the detent position,

Fig. 13

a representation according to FIG. 12 wherein the slider 42 is displaced into its release position and held there by engagement of the latching hook 49 in the latching recess 35,

Figure 14

a representation according to FIG. 10 however, in the release order,

Fig. 15

a representation according to FIG. 9 in the release position and

Fig. 16

an assembly position in a representation according to the Figures 9 or 15, wherein the roller 4 is disposed above its associated guide groove 9 and the safety cam 44 abuts a securing portion 45 and is deformed by applying a vertical force such that the roller 4 is inserted into the guide channel 9 associated therewith.

The in the FIGS. 1 to 8 shown roller carrier 1 has a U-shaped support 3, which consists of steel. The carrier 3 forms a mounting plate 13, with which the roller carrier 1 is screwed to the inside of a sliding door 2. From the upper peripheral edge of the mounting plate 13 projects from a horizontal web 6, which supports a pivot lever 15 approximately in its center. The bevelled transition edge of the horizontal web 6 in a vertical leg 5 has a window 21, in which an arm 18 of the pivot lever 15 can dip. The vertical leg 5 forms a roller attachment portion, on which a roller 4 is attached. The vertical leg 5 also forms two stop cams 14, which are arranged in the direction of displacement of the roller 4 in front of and behind the roller 4.

On the body of the cabinet, a profile body 7 is fastened. For this purpose, the profile body 7 has a horizontal web 12, which can be screwed to the top of the cabinet. From the horizontal web 12 protrudes a vertical web 11. The horizontal web 12 has an extension which forms a bondage rib 10. The bondage rib 10 forms a securing section and lies above a guide 8 protruding from the lower edge of the vertical web 11 in the form of a channel. In addition to the guide 8 for the roller 4 of the roller carrier 1 for an outer door fitting is also a guide having the shape of a groove 9 for receiving a roller 4 of a roller carrier for an inner sliding door.

The attached to the horizontal web 6 pivot lever 15 has an arm 19 which has an arcuate slot 27 into which a pin 28 fixedly connected to the horizontal web 6 engages. Beyond the pivot axis 16 of the pivot lever 15 is the arm 18 which carries a safety cam 17 at its free end. The safety cam 17 is located at the free end of a bend of the arm 18th

On its underside facing the roller 4, the safety cam 17 has a control bevel 20. The control bevel 20 has the shape of a plane. The plane is inclined both with respect to the extension direction of the binding rib 10 and with respect to a transverse direction thereto. The extension direction and the transverse direction lie in a horizontal plane.

The resting on the horizontal web 6 section of the pivot lever 15 forms a spring tongue 22. The spring tongue 22 is formed integrally with the material made of plastic pivot lever 15. On its side facing the horizontal web 6 side, the spring tongue 22 carries a pin 24 which in an opening 23 of the horizontal web engages. The edge of the opening 23 forms an abutment, on which the pin 24 can be supported, so that the spring tongue 22 can exert an elastic restoring force on the pivot lever 15, the pivot lever 15 in the in FIG. 2 illustrated securing position holds.

If a torque is exerted on the arm 19, the pivot lever 15 can move from the in FIG. 2 illustrated securing position in the in FIG. 3 shown release position to be pivoted. In this case, the free end of the spring tongue 22 approaches the arm 19.

The free end of the spring tongue 22 carries a hook 25 which can engage behind a latching step 26 of the arm 19, as shown in the FIG. 8 is shown. In this operating position, the tensioned spring tongue 22 is tied to the pivot lever 15. The spring tongue 22 extends approximately in the direction parallel to the two arms 18, 19 extending in a line. In this Nichtwirkstellung the spring tongue 22 is the lifting lever 15 forming the lift-out in a release position.

While in the securing position of the safety cam 17 protrudes beyond the vertical leg 5 and in particular in the plane of rotation of the roller 4, the safety cam 17 is in the release position, in the FIG. 8 is shown, outside the plane of rotation of the roller 4 and completely in the window 21. The safety cam 17 thus does not protrude beyond the vertical leg 5. The pivot lever 15 may consist of the in FIG. 8 shown latched release position can not be automatically pivoted into the securing position, because the pin 24 abuts a peripheral edge of the opening 23. Only after lifting the hook catch 25, 26 of the pivot lever 15 is pivoted by the then relaxing spring tongue 22 in the securing position.

The roller carrier 1 can be mounted with pivot lever 15 held in the securing position. For this purpose, the roller carrier in the in FIG. 5 shown position brought. In this position, the roller 4 is in a raised position above its associated guide 8. The control slope 20 is located on the peripheral edge of the bondage rib 10. Is starting from the in FIG. 5 shown position of the roller carrier 1 down, so the control slope 20 slides on the edge of the bondage rib 10 from. In this case, the pivot lever 15 rotates in the in FIG. 7 shown position, which is associated with the spring tongue 22 spans. Since the control slope 20 is inclined in two directions with respect to the above the control slope 20 arranged flattening 30 and the horizontal, acts on the twisted control slope 20, a torque.

Only when the side edge 29 of the securing cam 17 has overrun the bondage rib 10, the pivot lever 15 of the relaxing spring tongue 20 back into the in FIG. 1 pivoted illustrated securing position.

The side edge 29 extends at an acute angle to the arm 18, so that the side edge 29 in the overflow position, in which it overflows the bondage rib 10, can assume approximately a parallel position to the extension direction of the bondage rib 10.

The FIGS. 9 to 16 show a mountable on an inner door leaf 2 roller carrier, which forms a support plate 41 to which a roller 4 is attached. The support plate 41 has a section arranged below the roller 4, which has a slot 39 open towards the edge. In this slot 39 a made of plastic slider 42 is inserted, which forms a safety catch. To tie the slider 42 in the slot 39 protrude from Slider 42 side wings 37 from which engage under the slot wall. In the slot wall there are two catches 35, 38. In these catches 35, 38 can optionally engage a latching hook 49 which is fixed to a latching arm 50. If the pivotable locking arm 50 is pivoted against a rigid handle arm 48, then the latching hook 49 exits from the respective latching niche 35, 38, so that the slider 42 between a in FIG. 10 illustrated securing position and a in FIG. 14 shown release position is displaced back and forth.

In the securing position in which the latching hook 49 engages in the latching niche 38, two securing cams 44 in a closely spaced position to the roller 4. In the in FIG. 14 shown release position in which the latching hook 49 engages in the latching niche 35, the two safety cams 44 are further away from the roller 4.

The FIG. 9 shows that the securing cam 44 is connected by means of a spring hinge 47 elastically connected to a main body 43 of the slider 42. The main body 43 is tied to the support plate 41 so that it can be moved only in its plane. The safety cam 44, which is present in duplicate, namely on each side of an extension 46, can pivot about the spring hinge 47 from an obliquely projecting securing position into a pivoted-back position. In this case, a restoring force builds up within the spring hinge 47, which returns the safety cam 44 back into the in FIG. 9 shown securing position can pivot. In the securing position of the safety cam 44 is in the plane of rotation of the roller 4 or engages at a short distance the bottom of the guide channel 9, in which the roller 4 is mounted rolling.

To lift the roller 4 out of the channel 9 out, the slider 42 of the in the FIGS. 9 to 11 illustrated securing position in the in the FIGS. 12 to 15 shown release position to be relocated. In this case, the safety cam 44 moves away from the lower edge of the guide 9 and thus also from the securing portion 45 which is formed by the lower edge of the channel. The distance between securing cam 44 and roller 4 is sufficiently large that the roller 4 can be lifted out of the guide 9.

The roller carrier is characterized by the fact that the roller 4 can be hooked into the guide channel 9 with the slide 42 displaced in the safety position. This clarifies the FIG. 16 , If the roller is brought into a position above the guide channel 9, so the projecting at an acute angle in the plane of rotation of the roller 4 locking cam 44 abuts the formed by the outer wall of the groove securing portion 45. He is doing against the restoring force of the spring hinge 47 in the in FIG. 16 bent position shown bent, in which the safety cam 44 is outside the plane of rotation of the roller 4. The roller 4 can now be lowered and hooked into the guide 9. In this case, the safety cam 44 slides along the securing portion 45 until it can engage under the outer wall of the guide groove 9. After a relaxation of the spring hinge 47 of the safety cam 44 engages under the securing portion 45, as shown in the FIG. 9 is shown.

All disclosed features are essential to the invention. In the disclosure of the application, the disclosure content of the associated / attached priority documents (copy of the prior application) is hereby incorporated in full, including for the purpose of features of these documents in Claims of the present application to include. The subclaims characterize in their optionally sibling version independent inventive developments of the prior art, in particular to make on the basis of these claims divisional applications.

LIST OF REFERENCE NUMBERS

1

A rolling wheel support

2

sliding door

3

carrier

4

caster

5

vertical leg

6

horizontal web

7

profile body

8th

guide

9

guide

10

restraining rib

11

vertical web

12

horizontal web

13

screwing

14

stop cams

15

pivoting lever

16

swivel axis

17

securing cam

18

poor

19

poor

20

control slope

21

window

22

spring tongue

23

opening

24

spigot

25

hook

26

catching step

27

arcuate slot

28

spigot

29

side flank

30

flattening

31

-----------------

32

-----------------

33

----------------

34

-----------------

35

latching recess

36

evasive niche

37

wing

38

latching recess

39

slot

40

A rolling wheel support

41

support plate

42

pusher

43

body

44

securing cam

45

safety section

46

extension

47

spring hinge

48

handle arm

49

latch hook

50

detent arm

Claims (12)

Roller bearing support (1) of a sliding door fitting with a carrier (3) which can be fastened to a sliding door (2) and carries a roller (4) which rolls along a guide (8) of a profile body (7) which can be fastened to a body of a sliding door cabinet, and a Aushebsicherung with a safety cam (17) which engages in a securing position a securing portion (10) of the profile body (7) such that the roller (4) can not be separated from the guide (8), and of the securing position in a release position is displaceable, in which the roller (4) of the guide (8) is separable, the safety cam (17) when hanging the sliding door (2) from its securing position can yield elastically against a restoring force, which restoring force the safety cam (17 ) shifted back into the securing position, characterized in that the securing cam (17) from one end of a horizontal web (6) d it U-shaped support (3) about a pivot axis (16) pivotally mounted pivot lever (15) is formed, pointing to the roller (4) arm (18) has a control slope (20), which when hanging the sliding door (2) on Secured portion (10) runs up to pivot the pivot lever (15) against the elastic restoring force. Roller bearing support (1) according to claim 1 or in particular according thereto, characterized in that the control bevel (20) is formed by a plane which, relative to the securing position of the pivot lever (15), both with respect to the extension direction of the guide (8) and with respect to a horizontal Transverse direction is inclined. Roller bearing support (1) according to one or more of the preceding claims or in particular according thereto, characterized in that the securing cam (17) forms a flattening (30) on its side facing the control slope (20) facing upwards ( 10) forming bondage rib (10) is arranged. Roller bearing support (1) according to one or more of the preceding claims or in particular according thereto, characterized in that the restoring force is formed by a spring tongue (22), which is integrally formed, in particular of the same material, in particular made of plastic pivoting lever (15). Roller carrier (1) according to one or more of the preceding claims or in particular according thereto, characterized in that the spring tongue (22) engages in particular with a pin (24) in an opening (23) of the horizontal web (6). Roller carrier (1) according to one or more of the preceding claims or in particular according thereto, characterized in that the spring tongue (22) forms a hook (25), in particular at its free end, which engages behind a latching step (26) the tensioned spring tongue (22) holds an inactive position in which the pivot lever (15) can assume its release position. Roller bearing support (40) of a sliding door fitting with a carrier (41) which can be fastened to a sliding door and carries a roller (4) which can be fastened along a guide (9) of a fastened to a carcass of a sliding door cabinet Profile body (7) rolls, and having a lift-off with a safety cam (44) in a securing position a securing portion (45) of the profile body (7) engages below such that the roller (4) are not separated from the guide (9) can, and which is displaced from the securing position into a release position in which the roller (4) of the guide (9) is separable, wherein the safety cam (44) when hanging the sliding door (2) from its securing position elastically dodge against a restoring force can, which restoring force the safety cam (44) moved back into the securing position, characterized in that the safety cam (44) on a base body (43) of a slide (42) sits and against the elastic restoring force when hanging the door (2) displaced the base body (43). Roller carrier (40) according to claim 7 or in particular according thereto; characterized in that the securing cam (44) of the same material of the slide (42) is formed, which is in particular made of plastic. Roller bearing (40) according to one or more of the preceding claims or in particular, characterized in that two or more in the extension direction of the guide (9) juxtaposed safety cams (44) each with a spring hinge (47) with the base body (43) of the slider (42) are connected. Roller bearing (40) according to one or more of the preceding claims or in particular according thereto, characterized in that the slide (42) by means of a latching hook (49) which selectively in one of a plurality of latching niches (35, 38) engages, is held in its securing position or release position. Roller carrier (40) according to one or more of the preceding claims or in particular according thereto, characterized in that a gripping arm (48) is opposite a latching arm (50) which is formed by a latching hook (49) supporting spring tongue. Roller carrier (1, 40) according to one or more of the preceding claims or in particular according thereto, characterized in that the securing cam (17, 44) is held in the securing position by a spring element (22, 47) connected in the same material with the securing cam (17, 44) is, which spring element (22, 47) the elastic displaced from the securing position securing cam (17, 44) can move back into the securing position.

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