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US 7,506,834 B2Granted
Winding apparatus with central locking and unlocking
AssigneeAvery Dennison Corporation
InventorJohannes Lenkl
Life of this patent
Estimating the term…
Abstract
A winding apparatus for a winding material. A drivable rotary shaft having a longitudinal center line (M). A receiving unit for the winding material, which is rotationally connected to the rotary shaft. A clamping unit for reversibly clamping the winding material fast to the rotary shaft. An actuation unit. The clamping unit can be reversibly moved from its clamping position into its release position by at least one translatory movement of the actuation unit.
Claims11
An apparatus for winding or unwinding a windable material, comprising:
- a rotatable, axially extending shaft,
- a sleeve that receives the shaft and is rotatable as a unit with the shaft,
- a pair of axially spaced cams fixedly secured to the sleeve,
- a plurality of peripherally spaced elongate clamping elements about which the winding material can be wound, the clamping elements having opposite end portions,
- a carrier element on each end portion of each clamping element, the carrier elements at the one end portions of the clamping elements being non-rotatably coupled to and slidable on one of the cams, the carrier elements at the other end portions of the clamping elements being non-rotatably coupled to and slidable on the other one of the cams,
- the sleeve and the cams being shiftable relative to the shaft in one direction to cam the clamping elements outwardly to a clamping position, and the sleeve and the cams being shiftable relative to the shaft in the opposite direction to enable movement of the clamping elements inwardly to a release position.
3 more elements
Dependencies are inferred from the claim text.