SE508682C2

SE508682C2 - Swivel or link wheel fork or mounting

Info

Publication number: SE508682C2
Application number: SE9501241A
Authority: SE
Inventors: Lennart Svahn
Original assignee: Lennart Svahn
Priority date: 1995-04-04
Filing date: 1995-04-04
Publication date: 1998-10-26
Also published as: SE9501241L; SE9501241D0

Abstract

The mounting comprises a top part (1) with fastening and bottom part (2) with arms for plugs or wheel axle. A bearing for the bottom part comprises an outer ring (3), inner ring (4) and bearing parts (5), e.g. balls or rollers, between rings. Washers (8) on each side of the bearing cover at least some of area between rings. The bottom part, bearing and washers are cast as single piece.

Description

10 15 20 25 30 35 40 sos 682 2 försedd med en monteringstapp eller monteringsaxel (icke visad), som sträcker sig ned i underdelen 2 och bildar den axel, kring vilken delarna 1 och 2 är roterbara eller vridbara samt som hål- ler ihop de två delarna l och 2. Underdelen 2 har två armar, vilka utgår från ett övre parti, vilket sträcker sig delvis in i överdelen 2 och som inrymmer ett lager med en ytterring 3 och en innerring 4 samt mellan ringarna anordnade lagerelement i form av kulor eller rullar, vilka i föreliggande fall antydes som ku- lor 5. Den övre delen av underdelen 2 har vidare ett genomgående hål 6. Vid ändarna på armarna hos underdelen 2 uppvisar desamma var sitt genomgående hål 7 för en hjultapp eller hjulaxel för ett mellan armarna positionerat hjul (icke visat). 10 15 20 25 30 35 40 sos 682 2 fitted with a mounting pin or mounting shaft (not shown), which extends down into the lower part 2 and forms the shaft, around which parts 1 and 2 are rotatable or rotatable and which hold joins the two parts 1 and 2. The lower part 2 has two arms, which emanate from an upper portion, which extends partially into upper part 2 and which houses a bearing with an outer ring 3 and one inner ring 4 and bearing elements arranged in shape between the rings of balls or rollers, which in the present case are referred to as lor 5. The upper part of the lower part 2 further has a continuous hole 6. At the ends of the arms of the lower part 2 have the same each has its own through hole 7 for a wheel pin or wheel axle for a wheel positioned between the arms (not shown).

På vardera sidan om det av ytterringen 3, innerringen 4 och ku- lorna 5 bestående lagret är anordnad en bricka 8, som har en ra- diell del, vilken täcker utrymmet mellan ytterringen 3 och in- nerringen 4 samt en axiell del, vilken är bockad i huvudsakligen 90° vinkel mot den radiella delen och sträcker sig ett stycke ned på ytterringens 3 utsida. Diametern på hålet i brickorna 8 är större än diametern på hålet i innerringen 4 i syfte att en an- sats på den genom innerringen 4 sig sträckande tappen skall kun- na komma till anliggning mot och ingrepp med innerringen 4 och en bricka eller liknande skall komma till anliggning mot och in- grepp med innerringen 4 på den motsatta sidan för uppnående av korrekt och lämplig lagerfunktion hos innerringen 4 och därmed mellan överdelen 1 och underdelen 2.On each side of that of the outer ring 3, the inner ring 4 and the consisting of a layer 8, which has a frame part, which covers the space between the outer ring 3 and the inner ring. the lower ring 4 and an axial part, which is bent in mainly 90 ° angle to the radial part and extends a bit down on the outside of the outer ring 3. The diameter of the hole in the washers 8 is larger than the diameter of the hole in the inner ring 4 for the purpose of on the pin extending through the inner ring 4, na come into contact with and engage with the inner ring 4 and a washer or the like shall come into contact with and grip with the inner ring 4 on the opposite side to achieve correct and suitable bearing function of the inner ring 4 and thus between the upper part 1 and the lower part 2.

Brickorna 8 eliminerar effektivt risken för inträngning av mate- rial i utrymmet mellan innerringen 4 och ytterringen 3. Det är således möjligt att tillverka den undre delen 2 genom gjutning av densamma i ett lämpligt plastmaterial, t ex hårdplast, poly- amid, efter inplacering av lagret med brickorna 8 i gjutformen.The washers 8 effectively eliminate the risk of material intrusion. rial in the space between the inner ring 4 and the outer ring 3. It is thus possible to manufacture the lower part 2 by casting of the same in a suitable plastic material, for example hard plastic, amide, after placing the bearing with the washers 8 in the mold.

Brickorna 8 medger lämplig mängd gjutgods kring lagret för att goda hållfasthetsegenskaper skall uppnås.The trays 8 allow a suitable amount of castings around the bearing to good strength properties must be achieved.

Många modifieringar är naturligtvis möjliga inom ramen för den i de efterföljande patentkraven definierade uppfinningstanken.Many modifications are, of course, possible within the scope thereof the inventive concept defined in the appended claims.

Claims

10 15 20 so 508 682 PATENT CLAIMS

Device at a wheel fork or bracket, preferably for swivel or castors, which has an upper part (1) with bracket and a lower part (2) with arms for pins or a shaft for a wheel positioned between the arms, characterized in that the lower part (2) is provided with a bearing, which has an outer ring (3), an inner ring (4) and a number of bearing elements (5), for example balls, rollers, between the rings (3,4), that a washer (8) is arranged on each side of the bearing for covering at least the space between the outer ring (3) and the inner ring (4) and that the lower part (2) the bearing and the washers (8) are cast in one and the same unit in a suitable material after placing the bearing with the washers (8) in the mold.

Device according to Claim 1, characterized in that the edge of the washers (8) is bent at an angle of substantially 90 ° in order to extend a distance downwards on the outer ring (3).

Device according to claim 1 or 2, characterized in that the diameter of the hole in the washers (8) is larger than the diameter of the hole in the inner ring (4) of the bearing.