DE102016210692B4 - Roller with a roller ring - Google Patents

Abstract

Roller (38, 40) for supporting a sash (14) of a window (10) or a door, the roller (38, 40) having the following: a. A roller bearing (46) with an inner ring (52) and an outer ring (54); b. a running body (58) on the outer ring (54), the running body (58) having a circumferential running surface (60); c. a roller ring (90) for forming an axial stop of the roller (38, 40), the roller ring (90) protruding radially beyond the roller body (58), the roller ring (90) at its free end (92) axially to the running surface (60) ) is inclined.

Description

The invention relates to a roller for supporting a window or door sash, in particular for a carriage of a window or door sash that can be set down from a fixed frame, the roller having a roller bearing with an inner ring and an outer ring.

The invention also relates to a carriage with at least one such roller. The invention also relates to a window or a door with a fixed frame and a carriage arrangement with such a carriage.

It is known to provide rollers for a carriage or a carriage arrangement.

the EP 0 478 938 A1 discloses a roller guide for an elevator sliding door. The roller guide has roller lifting devices at its end points. The roller lifting devices have ramp pieces on which the edge disks of rollers can run up in order to relieve the elastic running surfaces of the rollers. In this way, in the EP 0 478 938 A1 Flattening in the elastic running surfaces avoided. From the EP 0 478 938 A1 an embodiment of a roller has become known which has a running body which is held in a receiving groove. Side walls of the receiving groove can be designed asymmetrically. The side walls do not protrude radially beyond the running body. Furthermore, there is an axial load on the rollers in the EP 0 478 938 A1 not given.

the DE 20 2008 001 251 U1 discloses a lift-and-slide door movable on a running rail. In order to secure the sash of the lift-and-slide door to the running track even with high wind loads, teaches DE 20 2008 001 251 U1 the use of a cover plate.

From the EP 2 586 945 A1 a carriage with four rollers has become known, which - as arranged on a vehicle - are supported on two rails. The rollers have a roller ring. The roller ring is formed in one piece with the running surface of the roller.

the DE 90 17 828 U1 discloses the axial securing of a longitudinally movable wing by means of a locking pin which engages in a groove in the wing.

Furthermore, from the DE 1 918 481 A the axial securing of a door leaf by means of a fork which crosses a running rail has become known.

the DE 10 2014 212 463 A1 discloses a carriage with two castors.

From the DE 201 07 915 U1 a roller with an outer ring and an inner ring has become known. The outer ring has a duroplastic bandage.

the DE 42 35 288 A1 discloses a sliding door fitting with a caster. The roller has a highly break-proof body. The highly break-resistant body is plastic-coated in the area of its running surface or carries a plastic body having the running surface.

The problem with the known rollers is that the rollers can emerge from a guide of the roller under high axial loads, for example in the case of high wind loads. Axial loads on the rollers occur in particular in the case of hinged leaves. Such wings are usually tiltable and / or mounted in a fixed frame so that they can be moved in parallel.

The object of the present invention is therefore to provide a roller which, on the one hand, has a very smooth running, but on the other hand also withstands axial loads. The object of the present invention is also to provide a carriage with such a roller and a window or a door with such a carriage.

The object is achieved according to the invention by a roller according to claim 1, a carriage according to claim 13 and a window or a door according to claim 14. The subclaims indicate expedient further developments.

The object according to the invention is thus achieved by a roller for a carriage. The carriage is designed for the arrangement of a sash on a fixed frame, with the sash in particular being detachable from the fixed frame. The roller has a roller bearing with an inner ring and an outer ring. The running roller has a running body on the outer ring, the running body having a running surface on the circumferential side. This ensures that the roller runs very smoothly. Furthermore, the roller has a roller ring which rises above the roller in the radial direction and thereby forms an axial stop for the roller. The roller can thereby be guided on a running rail or the roller ring in a slot without the roller leaving its guide when an axial force is applied.

A running roller ring is understood to mean a circumferential ring. The roller rim has a simplified production of the roller preferably viewed in the circumferential direction of the roller on a constant cross section.

The running body can be made of metal, in particular steel, preferably of stainless steel, to support particularly heavy wings. Alternatively, the running body is made of plastic.

The roller can withstand particularly high axial loads, since the roller ring is designed to be inclined axially towards the center of the roller at its free end.

More preferably, the roller ring is designed in one piece with the outer ring.

Furthermore, a first projection can be formed on the running body which engages in a first recess formed on the outer ring. The first recess significantly reduces turning or severe wear of the running body due to axial loads.

The first recess preferably extends at least in sections, in particular completely, in the radial direction. As an alternative or in addition to this, the first recess can also engage behind the outer ring.

The first recess is preferably completely filled with the first projection. As a result, the running body adheres particularly firmly to the outer ring.

The manufacture of the roller is significantly simplified if the recess is formed circumferentially on the outer ring. In this case, the recess can be produced by turning.

The outer ring can have a receiving groove formed circumferentially on the outer ring with side walls, the running body being arranged in the receiving groove. A side wall of the receiving groove is preferably formed in one piece with the roller ring. The roller ring can then form a radial continuation of the side wall.

In a particularly preferred embodiment of the roller, the first recess is formed on the groove base of the receiving groove.

The running roller can have a further running roller rim opposite the running roller rim which exceeds the running body in the radial direction so that the running roller can be secured to a running rail in both axial directions. As a result, a carriage with the roller can be used with left-opening windows or doors as well as right-opening windows or doors. The number of different parts is reduced and errors in assembly are avoided.

The further roller ring can form a radial continuation of a side wall.

Particularly preferably, the further roller ring is designed symmetrically to the roller ring.

The running body preferably rests axially on both sides against the side walls of the receiving groove. As a result, the running body is axially secured in a particularly reliable manner on the outer ring. Particularly preferably, the running body lies axially on both sides - apart from projections of the running body - completely on the side walls of the receiving groove.

A second recess is preferably formed on the outer ring, which is at least partially filled with a second projection of the running body. The second recess is axially spaced from the first recess. The second recess is preferably formed radially. More preferably, the second recess is completely filled by the second projection of the running body. As a result, the running body is particularly securely attached to the outer ring.

The manufacture of the roller is further simplified if the second recess is designed in the form of a circumferential recess on the outer ring, in particular on the groove base of the receiving groove.

The cross section of the running surface is preferably arcuate, most preferably semicircular. Side sections can be located between the tread and the side walls. The axial width of the side sections preferably corresponds to more than 25% of the cross-sectional radius of the running surface.

As previously mentioned, the running body may have side portions between the tread and the side walls. The side sections preferably extend in the radial direction to the same extent as at least one side wall of the receiving groove. In other words, at least one side section preferably terminates radially with a side wall.

The wear of the running body is further minimized if the transition between the side walls and the groove base of the receiving groove is embodied as a quarter circle in cross section.

In a further preferred embodiment of the roller, the bottom of the groove is arcuate in cross section when viewed from the running surface towards the axis of rotation of the roller. This shows the Running body on a total of a substantially curved, uniformly resilient profile.

The object according to the invention is also achieved by a carriage for supporting a retractable leaf, the carriage having a roller as described above. The carriage can have an extension arm. In this case, the roller preferably has the roller ring on its side facing away from the deployment direction of the deployment arm. This reduces the risk of the roller being pulled out of its guide by a user when the sash is pulled open. The carriage preferably has two rollers, the roller ring of which is provided on the side of the rollers facing away from the deployment direction of the deployment arm.

The object according to the invention is further achieved by a window or a door, the window or the door having a fixed frame and a sash which is movable relative to the fixed frame and which is supported on a carriage arrangement of the window or the door. The carriage assembly includes a carriage described above. Furthermore, the carriage arrangement can have a running rail on which the running roller rests with its running surface. Preferably, the wing can be set down from the fixed frame and is designed to be displaceable parallel to the fixed frame.

Further features and advantages of the invention emerge from the following detailed description of an exemplary embodiment of the invention, from the claims and on the basis of the figures of the drawing, which shows details essential to the invention. The various features can each be implemented individually or collectively in any combination in the case of variants of the invention. The features shown in the drawing are shown in such a way that the special features according to the invention can be made clearly visible.

• 1 eine Draufsicht auf ein schematisch dargestelltes Fenster mit einem festen Rahmen, einem relativ zum festen Rahmen bewegbaren Flügel und einer Laufwagenanordnung mit zwei miteinander gekoppelten Laufwagen zur Abstützung des Flügels;
• 2 eine Unteransicht eines Laufwagens aus 1 mit zwei Laufrollen; und
• 3 ein Querschnitt einer Laufrolle aus 2.

Show it:

• 1 a plan view of a schematically shown window with a fixed frame, a relative to the fixed frame movable sash and a carriage assembly with two coupled carriages for supporting the sash;
• 2 a bottom view of a carriage 1 with two rollers; and
• 3 a cross section of a roller 2 .

1 shows a window 10 with a solid frame 12th and one relative to the fixed frame 12th movable wing 14th . On the wing 14th is a handle 16 arranged. In a first grip position 18a is the window 10 closed and the wing 14th is firmly attached to the solid frame 12th on. In a second grip position 18b is the wing 14th parallel to the fixed frame 12th can be turned off and in the direction of an arrow 20th parallel to the fixed frame 12th movable. In a third grip position 18c is the wing 14th tiltable.

To move the wing 14th relative to the fixed frame 12th in the direction of the arrow 20th the wing is supported 14th lower end via a carriage assembly 22nd on a running rail 24 of the window 10 away. The carriage arrangement 22nd has at least two carriages 26th , 28 on that by a coupling rod 30th the carriage arrangement 22nd are connected.

2 shows the carriage 26th according to 1 . Out 2 it can be seen that the carriage 26th an extension arm 32 having. The extension arm 32 is pivotable at one end on a carriage housing 34 arranged and has a warehouse at the other end 36 for connection to the wing 14th (please refer 1 ) on. In the carriage housing 34 are at least two rollers 38 , 40 rotatably arranged.

Is the extension arm 32 - as in 2 shown - from the carriage housing 34 turned off, the wing is 14th (please refer 1 ) parallel to the fixed frame 12th (please refer 1 ) movable. By turning off or turning on the sash 14th / Extension arm 32 become the castors 38 , 40 axially heavily loaded. The roller ring 90 minimizes the wear of the roller caused by the axial loads mentioned 38 , 40 .

3 shows the roller 38 in cross section. The caster 38 is mirror symmetrical to its radially extending center plane 42 educated. Furthermore, the caster is 38 axially symmetrical to the axis of rotation 44 the roller 38 educated. The caster 38 has a rolling bearing 46 , here in the form of a ball bearing with several rolling elements 48 , 50 , here in the form of balls. The rolling elements 48 , 50 are between an inner ring 52 and an outer ring 54 arranged.

The outer ring 54 is made of steel. The outer ring 54 Extensively has a receiving groove 56 on. In the receiving groove 56 is a running body 58 molded from plastic. The running body 58 consists of fiber-reinforced plastic, in particular glass-fiber reinforced plastic. The running body 58 thus has a certain elasticity that makes the roller run smoothly 38 contributes, the running body 58 is still sufficiently resistant to wear and tear. When turning the roller 38 the roller is supported 38 over a tread 60 of the running body 58 on the track 24 (see also 1 ) away. The tread 60 is arcuate in cross-section to the center of the roller 38 trained towards.

The receiving groove 56 has side walls 62 , 64 on that the running body 58 axially, ie in one to the axis of rotation 44 parallel direction, limit on both sides. The side walls 62 , 64 contribute significantly to the axial stabilization of the running body 58 at.

The side walls 62 , 64 go through transitions with a quarter-circle shape in cross-section 66 , 68 in a groove base 70 the receiving groove 56 over. The groove base 70 is radial, ie perpendicular to the axis of rotation 44 , arcuate to the center of the roller 38 trained towards. The running body 58 is as a result of this as a whole - as if by a dashed line 72 in 3 indicated - arched.

The groove base 70 points - as from the upper part of the 3 can be seen - a first recess 74 and a second recess 76 on. The recesses 74 , 76 point radially to the axis of rotation 44 . The recesses 74 , 76 are completely through the barrel body 58 filled. By engaging the running body 58 into the recesses 74 , 76 become - in 3 by a double arrow 78 indicated - unscrewing movements of the barrel 58 effectively avoided in the case of heavy axial loads.

The recesses 74 , 76 viewed axially are preferably between side sections 80 , 82 of the running body 58 intended. The side sections 80 , 82 extend between the side walls 62 , 64 and the tread 60 , as in 3 by dashed lines 84a - 84d is indicated. The side sections 80 , 82 extend radially just as far from the axis of rotation 44 away like the side wall 64 . The side sections 80 , 82 each have an axially width B which is more than 25% of the radius R of the tread 60 is equivalent to.

The running body has in an axially central section, between the side sections 80 , 82 , a first head start 86 on that in the first recess 74 engages and a second protrusion 88 that goes into the second recess 76 intervenes on.

A first side wall 62 is in one piece with a roller cage 90 educated. The roller ring 90 prevents the roller from leaving the roller completely 38 from the track 24 when the caster 38 with their tread 60 the contact to the running rail 24 loses. The roller ring 90 is at its free end 92 in the axial direction to the running surface 60 inclined so that the roller ring 90 is mechanically stabilized further.

Taking a look at all the figures of the drawing together, the invention relates in summary to a roller 38 , 40 with a running body 58 , in particular made of elastic material, which has a tread 60 having. The outer ring 54 has a roller ring 90 on which is the radially furthest from the axis of rotation 44 the roller 38 , 40 protruding part of the roller 38 , 40 forms. The running body 58 can in a receiving groove 56 an outer ring 54 the roller 38 , 40 be embedded. side walls 62 , 64 the receiving groove 56 preferably close radially flush with the barrel body 58 away. In the bottom of the groove 70 the receiving groove 56 can have a first recess 74 be formed in which the running body 58 engages, so that an unscrewing of the barrel body 58 from the receiving groove 56 around the center of the tread 60 is effectively prevented. Preferably is in the groove base 70 a second recess 76 formed in which the running body 58 intervenes. The second recess 76 is preferably around the outer ring 54 formed and runs parallel to the first recess 74 . The caster 38 , 40 can be mirror-symmetrical to its central plane 42 be formed perpendicular to the axis of rotation 44 the roller 38 , 40 runs.

Claims (14)

Roller (38, 40) for supporting a sash (14) of a window (10) or a door, the roller (38, 40) having the following: a. A roller bearing (46) with an inner ring (52) and an outer ring (54); b. a running body (58) on the outer ring (54), the running body (58) having a circumferential running surface (60); c. a roller ring (90) for forming an axial stop of the roller (38, 40), the roller ring (90) protruding radially beyond the roller body (58), the roller ring (90) at its free end (92) axially to the running surface (60) ) is inclined. Roller according to the preceding claim, in which the roller ring (90) is formed in one piece with the outer ring (54). Roller according to one of the preceding claims, in which a first recess (74) is formed on the outer ring (54), which is at least partially filled with a first projection (86) of the running body (58). Roller after Claim 3 , in which the first recess (74) is completely filled with the first projection (86) of the running body (58). Roller after Claim 3 or 4th , in which the first recess (74) is formed circumferentially on the outer ring (54). Roller after one of the Claims 3 until 5 , in which the first recess (74) extends at least in sections in the radial direction. Roller according to one of the preceding claims, in which the roller (38, 40) has a receiving groove (56) formed circumferentially on the outer ring (54), in which the running body (58) is arranged, the receiving groove (56) having side walls (62, 64) and a groove base (70) and wherein the roller ring (90) is formed in one piece with a side wall (62) of the receiving groove (56). Roller after Claim 7 , in which the first recess (74) is arranged on the groove base (70) of the receiving groove (56). Roller according to one of the preceding claims, in which a second recess (76) is formed on the outer ring (54), which is at least partially filled with a second projection (88) of the running body (58), the second recess (76) being axial is spaced from the first recess (74). Roller after Claim 9 , in which the second recess (76) is formed circumferentially on the outer ring (54). Roller according to one of the preceding claims, in which the cross section of the running surface (60) is arcuate and the running body (58) has side sections (80, 82) which extend axially on both sides from the running surface (60) and which are located on the side walls (62, 64), the axial width (B) of the side sections (80, 82) each corresponding to more than 25% of the radius (R) of the cross section of the tread (60). Caster according to one of the preceding claims in connection with Claim 8 , in which the groove base (70) is designed to be radially aligned with the running surface (60) in cross section in an arcuate manner towards the center of the running roller (38, 40). Carriage (26, 28) for a sash (14) of a window (10) or a door with a roller (38, 40) according to one of the preceding claims. Window (10) or door with a fixed frame (12) and a carriage arrangement (22) for the relative to the fixed frame (12) displaceable arrangement of a wing (14) of the window (10) or the door, the carriage arrangement (22) a Carriage (26, 28) Claim 13 having.

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