Suspension system of bobbin hanger
OwnerShinzo Kitamurainventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a suspension system of a bobbin hanger rotatably dangling a bobbin around which sliver or rovings are wound up on spinning machines, in the construction of which, for the purpose of deterring the intrusion of dust into a bearing section and urging the latter to smoothly rotate, a cap covers the bearing section with a slide face which is in consonace with a swinging spherical face of the bearing section, which holds a ball race molded of resinous material on a terminal head formed with a spherical surface, such being overlaid by an outer race with a retainer disposed between, and this outer race secures a housing.
Claims7
A suspension system for rotatably supporting a bobbin holder, comprising:
- a shank forming a spherical bearing-race-receiving face at the lower end thereof with a neck part and a round trunk part being successively formed vertically therefrom;
- a bearing race coaxial with said shank and having a lower concave spherical surface, said bearing race being supported on said spherical bearing-race receiving face of said shank;
- a bobbin securing member having a convex spherical top face, said bobbin securing member being provided with a through-hole for receiving said shank, said through-hole being formed through the top part of said bobbin securing member and receiving said neck part of said shank and providing a broad clearance therebetween;
- ball bearing means disposed between said bobbin securing member and said bearing race, for rotatably supporting said bobbin securing member from said shank through the intermediary of said bearing race;
- and
- a cap plate being formed with a concave spherical surface substantially coinciding with the convex spherical top face of said bobbin securing member and formed concentrically parallel with said spherical bearing-race-receiving face of the lower end of said shank and having a central opening for receiving said trunk part of said shank, said central opening providing only a narrow clearance between said trunk part of said shank and said cap plate, whereby said cap plate prevents the intrusion of dust from above into the ball bearing section of said suspension system while permitting smooth rotation of said bobbin securing member through said ball bearing.
Dependencies are inferred from the claim text.