Hose clamp
AssigneeOetiker Schweiz AG
InventorStefan Miessmer
Life of this patent
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Abstract
An open hose clamp with a tightening mechanism in the form of a so-called Oetiker ear. The tightened condition is locked by toothed portions which mutually engage outside the area of the ear on the side of the ear remote from the outer clamping band end. In the locked tightened condition, the ear is free of forces so that the hose clamp retains its clamping function even if the outward projecting ear is damaged.
Claims9
A hose clamp made of a clamping band having an inner end portion overlapped by an outer end portion, closing means for maintaining both end portions in mutual engagement in the closed condition of the hose clamp, and ear-like tightening means provided in the clamping band and having a pair of outward extending legs interconnected by a bridge portion, wherein the outer side of the inner end portion has a first toothed portion which in the tightened condition of the hose clamp engages a second toothed portion disposed on the inner side of the outer end portion and on the side of the tightening means remote from the outer clamping band end,
- wherein the inner end portion terminates in a tongue which has a width smaller than the full band width and which, in the closed condition of the hose clamp, extends through a step provided in the outer end portion,
- wherein the outer end portion has a part covering the outer side of the tongue in an area adjoining the step, and
- wherein, in the tightened condition of the clamp, the engagement between the toothed portions takes place outside the ear-like tightening means.
Dependencies are inferred from the claim text.