Guide system for a counterweight
OwnerUlrich Weidmanninventor
Life of this patent
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Abstract
The invention relates to a guide system for a counterweight that is mounted in a box-shaped profile beam, in particular for blackboards. The hollow profile beam has to this purpose on its inside longitudinal guides (17 and 18). Above and below on the counterweight (20) there are provided elastomeric bands (30) with integrally vulcanized hard-rubber elements (31) that are in light sliding contact with the longitudinal guides and that guide the counterweight during its upward and downward displacement.
Claims6
A guide system for a counterweight which is mounted in a box-shaped profile beam, in particular for blackboard installations, characterized in that the box-shaped profile beam (10) is open on one side while having two longitudinal guides (17 and 18) on the inside of two opposite closed walls and that the counterweight (20) mounted in the beam is surrounded at its upper and lower regions by an elastomeric annular band (30) that is provided with integrally vulcanized hard-rubber elements (31) in light sliding contact with the longitudinal guides.
Dependencies are inferred from the claim text.