DE7100762U - Caster - Google Patents

Description

Dipl.-Ing. H. Weickmann, Dipl.-Phys. Dr. K. Fincke Dipl.-Ing. F. A. Weickmann, Dipl.-Chem. B. Huber

Π 7. M "PM α ΜΠΝΓΗΡΝ Oi ι->ι; jvr

PO Box 860 820

MÖHLSTRASSE 22, NUMBER 48 39 21/22

<983921/22>

Deutsche Star Kugelhalter GmbH, 872 Schweinfurt Ernst-Sachs-Strasse 90

Caster

The invention "relates to a caster in particular for overhead trolley ti, with a roller bearing carrying the roller and one passing through the roller bearing Support axis.

With overhead rail via ge η s, where the chassis has two Has track rollers lying one behind the other, it is necessary to provide a swivel option for the rollers to be provided so that the overhead trolley can also be moved around curves. In the previously known embodiments pivotable brackets are provided for the respective roller, which is a relative entails great design effort.

The object of the invention is to create a swivel castor of a simple design.

The invention consists in that the support axis is connected to the roller bearing via a bearing body * in which the support axis around one in the plane of the roller bearing

2 -

lying Aohse is held pivotable. Due to the fact that the support shaft is pivotably connected to the roller via a bearing body that can be inserted into the roller bearing, the support shaft can be rigidly arranged and all devices that allow a pivotable mounting of the support shaft are omitted, as is the case with the previously known embodiments. ^r ar. • This simplifies the assembly of an overhead trolley to a large extent, the “as gesair” chassis including the support axle ... rollers can be made rigid.

A further development of the invention ⁷ divides it into the fact that the bearing body consists of two inner rings of the roller bearing which are adapted to these and which can be fixed, segnient-shaped bearing parts with a constant distance from one another, between which the support shaft is guided and connected to the two bearing parts by pivot pins. The two segment bearing parts, which are adapted to the inner diameter of the inner ring of the roller bearing, represent simple components that can be produced without great effort and, together with the support shaft, can be easily inserted into the roller bearing of the roller and secured to it. The roller irt is guided over the bearing parts, which are in close contact with the support axis.

To ensure good guidance of the roller during the swiveling process To achieve on the support axis, according to a further embodiment of the invention, the support axis is at least in Area of the bearing parts executed with plane-parallel surfaces, which on the plane-parallel surfaces of the bearing parts leading concern.

According to a further embodiment of the invention, the pivot pins can either be on the two Be arranged bearing parts and engage in a hole in the support axis or the pivot pin can be arranged on the support axis and engage in bores in the bearing parts.

In a further embodiment of the invention, the bearing parts of the bearing body on the one hand in each case secured by an ^o in the inner ring of the bearing-fitting outer collar and ar comprehensive arerseits by both bearing parts haarηεöeiförmige bracket to the inner ring, at the external coils opposite side of the inner ring fitting in corresponding grooves of the Storage parts can be determined. The assembly of the roller and the support shaft is very simple due to this configuration, since the support shaft, together with the bearing parts connected by pivot pins, is inserted into the inner ring of the roller bearing until the outer collar comes into contact with the bearing parts, woraux the entire arrangement secured by the bracket v; earth.

According to another embodiment of the invention, the bearing parts can by two on the inner ring of the Y / roller bearing s adjacent outer collars must be secured, one of which is beveled on the outside and on one resilient approach. In this embodiment, the outer collar seated on the resilient extension is when Insertion into the inner ring of the sleeve bearing due to the external inclination, pressed inwards by a spring and then snaps outwards on the other side of the inner ring and attaches itself securely to it Inner ring on.

! To the resilient Außenennunc ³ as possible over the

j entire scope: arrange one of the bearing parts

j can gemiiß is a weitereu embodiment of the ER

Finding the outer collar and the resilient approach over the

The extent of the warehouse is divided into at least two parts

divided *

According to a preferred embodiment of the invention, the bearing body consists of a tough, elastic plastic. This not only achieves advantages in terms of production in a known manner, but also Forming a bearing body made of plastic is particularly suitable for such because of its properties Bearing parts in which a resilient outer collar is arranged on one outer side.

Finally, according to a particular embodiment of the invention, the bearing body can be made of ei.nea carbon exist with lubricating properties, whereby the entire arrangement is v / maintenance-free.

The invention is shown in the drawing, for example. It shows:

Fig «, 1 is a side view of an inventive

Way on a support axle mounted roller;

FIG. 2 shows a section along the line ΙΙ-ΪΙ of FIG. 1; Fig. 3 is a section along the line ΙΙΙ-ΪΙ1 of Fig.l;

Figure 4 is a representation corresponding to FIG _P 3 of the roller in the tilted state.

Pig. 5 a detail of a modified training

! cig. 6 a section along the line Vi-Vj. dei Pig. 5; and

fig. 7 is a diagrammatic representation of two upper parts for connecting the support axis and roller in an enlarged I-'a

A roll-up 1, for example for a not shown I. monorail trolley, has a :: central bore 2 inside a 'rolling bearing 3 in the form of a ball bearing, which is fixed with its outer ring 4 in a hat 5 within the central bore 2.

Inside the inner ring 6 of the roller bearing 3 is a bearing body consisting of two segment bearing parts 7 and 8 provided, which connects a support axis 9 for the roller 1 with the inner ring 6 of the roller bearing. Dear Bearing body is shown in Fig. 7 in an enlarged KaDe.

The support shaft 9 is square in cross section and provided with a transversely to its longitudinal axis verfufenden IO bore into which from both sides a respective molded on the bearing part 7 and 8 swivel pins 11 and 12 into it engages. As a result, the roller 1 is pivotably mounted on the support shaft 9 and can be pivoted up to an angle of approximately 45 °, as can be seen from FIG. So that this pivotability can occur, the bearing parts 7 and 8 with their plane-parallel surfaces 13 and 14 are jiaich-

constant distance from one another, the distance largely corresponding to the hollow of the support axis 9 so that the surfaces 13 and 14 serve as guide surfaces during the pivoting movement of the roller 1 with respect to the fixed support axis 9, which for this reason have plane-parallel surfaces 15 and 16 out -; - is out, which cooperate with the guide surfaces 13 ad 14 ■. Hereby is a tilting of the \ ufrolle "excluded with respect to the support shaft in the present embodiment, the bearing parts are made of a selbstschmisrenden plastic 7 and 8, so that neither of the bearing _{journals, etc.} even at the contacting surfaces 13 and 15 or 14 and 16, a lubricant must be introduced.

The bearing parts 7 and 8 are provided in the Ausführungsfonaea according to FIGS. 1 to 4 and 7 at the ends of the convex surfaces with outer collars 17, 18, 18 'and 19, 20, 20', which extend from both sides to the inner ring 6 of the roller bearing 3 and thus set the roller 1 on the support shaft 9 in conjunction with len pivot pins 11 and 12. The respective rearwardly located in the drawing outside collars 17 and 19 are made in one piece and rigid, iv'älirend the front divided Außenbirnde 18.18 ^{and 20, ^20: the 'Jager parts 7 and 8 of resilient lugs 21 and seats 22, upon insertion of the bearing parts spring back into the Incenriag. In order to facilitate the introduction of the bearing parts into the inner ring, the outer collars 18, 18 * and 20, 20 'are beveled.

Eoi dor embodiment according to FIGS. 5 and 6 are di (i> a, -νr ^ eile 7 'and 8 ^f only with the rear outer bun «

the provided, one of which is shown in Fig. 6 of the outer collar 19 ¹ to the in the drawing of the illustrated front end, the bearing parts 7 ¹ and f without Außenbuna executed and each have an outer groove 23 and 24, into which a iiaarnadelförmige Klaiainer 25 is import bar, which secures the bearing parts in connection with the opposing fixed outer collars resting on the inner ring.

r ^ sayings -

Claims (10)

SCHJTZ CLAIMS Ι "Caster in particular" for overhead monorail cars with a roller bearing carrying the roller and a supporting axle penetrating the roller bearing, characterized in that the supporting axle (9) is connected to the roller bearing (3) via a bearing body (7, 8), ; is- pivotally supported in de'n the supporting axis (9) about a lying in dor plane of the rolling bearing (3) axis. ¹ 2. L _a ufrolle according to claim 1, characterized in that the Lagerkö'rper of two inner ring adapted (6) of the roller bearing and segment-shaped in this fixable, a constant distance from each other having bearing parts (7, 8) exists between which the support shaft (9) and with the two bearing parts through pivot pins (11, 12) is connected. 3. Caster according to claim 2, characterized in that the support axis (9) at least in the area of the bearing parts (7, 8) with plane-parallel j? Läcnen (15, 16) is executed, the ".n the plane-parallel surfaces (13, 14) of the bearing parts (7, 8) bear leading. 4. caster ul ch claim 2 or 3, characterized in that the pivot pins (11, 12) are arranged on the two bearing parts (7, 8) and engage in a bore (10) in the support axis (9). 5. Caster according to claim 2 or 3, characterized in that the pivot pin on the support axis are arranged and in bores in the bearing part ^ n to grab. 6th run ro I]. e according to one of claims 2 to 5 »characterized ^ denotes that the bearing parts (7 ¹ , 8 ¹ ) of the bearing body, on the one hand, by an outer sleeve resting on the inner ring (6) of the ^T > 7ä Is bearing (3) and, on the other hand, by an" Both bearing parts comprising hair needle-shaped clamp (25) are secured on the inner ring, which can be fixed on the opposite side of the inner ring of the inner ring in corresponding hats (2J ₅ 24) of the bearing parts « 7. Roller according to one of claims 2 bia, 5, characterized in that the bearing parts (7, 8) by zv / ei on the inner ring (6) of the roller bearing (3) adjacent outer collars (I ⁷ , 19; 18, 18 ^T , 20, 20 ') are secured, one of which (18, 18 *, 20, 20 ^! ) Is beveled on the outside and _{sits on a resilient extension (21 S} 22). 8. Roller according to claim 7, characterized in that that the outer collar (18, 18 ', 20, 20') and the resilient Approach (21, 22) over the scope of the storage ■ bil (7, 8) divided into at least ^ .. / ei! Parts iat. 9. Roller according to one of claims 1 to 8, characterized. characterized in that the bearing body (7, 8) consists of a ^ ah-elastic plastic. - I - io- 10. Roller according to. one of the Auapruuiie I Lis 3 »aa ^ urcii characterized in that the bearing body (7, 8) is made of a material with self-lubricating properties consists.