Tensioning device for chains
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 26, 1984
Issued Date -
N/A
app pub date -
Dec 17, 1981
filing date -
Dec 23, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tensioning device for chains such as tensioning chains, sling chains, tire chains and the like with a tensioning unit having at least one tensioning spindle which is connected with a tensioning nut and having at least one damping spring. The damping spring is a cup spring package and the cup spring package is installed in the tensioning unit. A multiplicity of the cup springs of the spring package can have a single layer and the remaining cup springs can have multilayer arrangement. More than half of the spring path, preferably approximately 80% of the entire spring path of the spring package is preloaded with a half force which is at least smaller by approximately one half than the preloading force of the remaining spring path. A control device has an indicator connected with a tensioning spindle and this indicator such as a bolt is movable, preferably is journalled longitudinally shiftable in a housing opening. The bolt is located approximately radially with respect to the tensioning spindle and preferably is secured to an abutment or ring at one end side thereof such as a plate and the bolt projects with another end into the housing having an opening therein.
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