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US 4,827,820 AGranted
Paper web cut-off device
AssigneeOy Wartsila Ab
InventorJorma Kinnunen
Life of this patent
Estimating the term…
Abstract
A paper web cut-off device, comprising a frame and a blade member mounted on the frame. The blade member is disposed to execute cutting of the paper web, with an actuator being provided for producing, on the blade member, the force required for cutting the paper web. The actuator for producing the required force for cutting of the paper web, is a spring member in which cutting energy is stored. At least one cocking or loading member is provided, which is disposed to cock or load the spring member.
Claims32
Paper web cut-off device for cutting a paper web, comprising
- a frame,
- blade means fitted in said frame and arranged to carry out the cutting of the paper web,
- spring means for producing, on said blade means, force required for cutting the paper web,
- and said device additionally comprising
- means for cocking said spring means, whereby cutting energy is generated, which is stored in said spring means,
- retaining means for retaining said blade means in an initial position,
- releasing means for releasing said blade means from said retaining means, and
- return means for returning said released blade means to the initial position.
5 more elements
Paper web cut-off device for cutting a paper web, comprising
- a frame
- blade means fitted in said frame and arranged to carry out the cutting of the paper web,
- spring means for producing, on said blade means, force required for cutting the paper web,
- and said device additionally comprising
- means for cocking said spring means, whereby cutting energy is generated which is stored in said spring means,
- wherein said blade means are directly mounted on said spring means, and
- said cocking means comprise a pair of separate, substantially parallel hoses mounted on said frame and expandable by introduction of compressed fluid therein.
4 more elements
Dependencies are inferred from the claim text.