DE6932518U - ROLLING BEARING CAGE, ESPECIALLY IN STRIP SHAPE - Google Patents

Description

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Cardboard $

Patent attorney ₁₂ _

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.Brauohsmuater registration
Injection molding plant Lüdensoheid GmbH «- \

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"Rolling bearing cage, especially in strip form."

The invention relates to a rolling bearing cage, in particular in ' Strip shape.

As far as you can roller bearings with cylindrical, barrel-shaped, conical or spherical rolling elements built into bearing bores to support shafts, they were originally made of sheet steel formed cages in which the rolling elements were inserted so that they kept a distance from one another. You have these cages also already made of two appropriately shaped plastic injection moldings formed, which interlock positively · This production requires two different injection molds and represents sioh therefore expensive. The storage of the rolling elements also requires considerable skill and effort in terms of time and wages.

On the other hand, there are sohon roller bearings in strip form for the J Use with single or multi-pull pull-out strips for pull-out boxes von Kartelsohränken ο »the like, which are on one level -Bahn between the two sioh in relation to each other moving strips, approximately U-shaped profile strips, move, with the roller bearing strips are approximately V-shaped. They consist of two angled metal strips joined together with Durohbreohungen in which the rolling elements are held. This production is also expensive and, above all, expensive

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the rolling elements guided in bleed conductors run very noisily, which is felt to be extremely disturbing.

The invention is based on the object of integrating such a line which at the same time serves as a cage for the rolling elements the storage of the rolling elements in the ae much cheaper to manufacture and to accept their insertion in the bearing parts, even if they are flat or curved.

The invention solves this problem in that the bar as a one-piece flexible elastic plastic body is formed, the cavities with undergrip designed, the rolling element shape adapted side walls for captive trapping of the rolling elements contains, and that between the individual recesses of the or each row on the one and / and the other outer surface notch grooves are provided, which sioh over the entire width and extend the length of the strip. The assembly of the rolling elements is extremely cheaper because you can only insert them into the under-grip receiving opening, taking advantage of the elasticity of the material need to push into it, where they will certainly remain. A soloher strip can be used in the same way a flat one, but also in an arcuate one, e.g. circular closed support opening can be accommodated. In the latter case, the strip adapts itself all the better if transversely aligned score lines run between the individual recordings, which are intended near one and / or the other side *

It is furthermore advantageous if the areas surrounding the recesses for the roller body have a greater thickness, and the areas in between, in which the notches are located, have a lesser thickness. If, for example, you want to accommodate angular rolling elements that run on support tracks that form an angle with one another, this use is made possible by a longitudinal notch running between the two rows. One can also arrange weaker strip strips that keep a distance between the rows, whereby the middle distance strip is delimited by a notch groove that runs parallel to one another.

The invention is illustrated in several embodiments explained in more detail.

Show it:

Pig. 1 and 2 a strip-shaped single-row version with cylindrical rolling elements in plan and in longitudinal section, Pig. 5 and 4- a strip-shaped double-row design in Honesty and cross-sons

Pig. 5 shows a modified version according to FIG. 3 »Pig. 6 a modified version for use with one and multi-section sliding guides for drawers and Pig. 7 shows an exemplary embodiment for a dome-shaped bearing point with spherical rolling elements.

In the first embodiment (Pig. 1 and 2) takes an existing of an elastic plastic cage strip 1 in the recesses 1 ^a , the side walls 1 according to the

Curvature of the rolling element 2 designed under grip bind, the existing steel rolling elements 2, which are ^{blown into the opening 1 a} , 1 b by simply pushing them into the under grip
the. So that the recess 1, 1 receives the rolling element 2 sufficiently firmly, the wall thickness of the strip 1 around it is increased in the areas 1 °. In order to be able to adapt the strip 1 with the inserted rolling elements 2 to a curved receiving opening, approximately wedge-shaped notch grooves 1 are provided between each two rolling elements 2. At one end of the strip 1 there is an under-grip opening 1 and at the other end a corresponding projection 1 ^s , which are used to close the ring shape or to couple several strips 1 when used in a planar extent.

The embodiment according to FIG. 3 differs essentially only in that here the strip 1 contains two parallel rows of openings 1 ^a , 1 ¹³ for the rolling elements 2 and that a notch 1 is also provided in the longitudinal center. This strip 1 allows the two strip halves to run inclined to one another, as required in the respective application.

Fig. 5 shows an imple mentation horn! similar to FIG. 3 with the difference that here two longitudinal notches 1 are present, between each of which there is a further surface 1 ^θβ . These designs are suitable for cases in which the two support tracks for the rolling elements 2 are inclined towards one another.

Fig. 6 shows a single application example for card index boxes,

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which are used in desks or filing cabinets, where previously metallic cage strips of angled shape with the Naohteil Use found that they made a very strong running noise caused.

The card index box 4 is connected by a web 4 to a metallic, approximately U-shaped bar 4, while a fixed base 3 ^{carries a bar 5 a of a} corresponding shape. The strip-shaped roller bearing cage is located in the gap

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Made of elastic plastic, the recesses of which 1.1 accommodate the rollers 2, and the notch grooves 1 make the necessary allow angular adjustment of their two areas. The two strips 1 can also become one accordingly wider stripes.

The round plate-shaped design shown in FIG. 7 contains it crossing notches 1, so that such a rolling element plate can be attached to a spherical cap-shaped bearing surface.

Claims (3)

'* · T · »suffered> I 1! Il ·· IU Il ,, ten walls (1) for captive breaking in of the rolling element protection claims. - 1.) V / älzlagerkäfig, especially in strip form, with one or more rows of recesses for the rolling elements to be accommodated therein as a rolling bearing for bodies moving on a stationary base, in particular for single or multi-pull pull-outs for sliding boxes from Kartelsohränken or the like. , daduroh characterized in that the bar (1) is formed as a one-piece flexible elastic plastic body, the cavities (1 ^a ) with undergrip designed, the rolling body shape adapted side per (2), and that between the individual recesses (1 ^a ) of the or each row on one or / and the other outer surface of notch grooves (1) are provided, which extend over the entire width or length of the strip (1) extend. 2.) V / älzlagerkäfig in strip form with several rows of rolling elements naoh Anspruoh 1, characterized in that the recesses (i ^a ) are surrounded like a frame by areas (1 °) of thicker cross-section and between these sohwäohere Berelohe (i ^e ) the notch grooves (1 ) exhibit. 3.) V / roller bearing cage in strip form according to claim 1 or 2, characterized in that at the opposite end of the strip (1) interlocking coupling means are educated. For the applicants Patent attorney