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US 5,311,416 AGranted
Casing with flexible fixing ring
AssigneeZedel
InventorAlain Maurice
Life of this patent
Estimating the term…
Abstract
A casing made of molded plastic material comprises a rigid body with an end part of non-circular cross-section, a closing cover coming into engagement against the end part, and a fixing ring screwed onto a male thread of the body to ensure that the cover is held against the end part. The ring is formed by a flexible part having a cylindrical initial shape, and comprising a plurality of serrations allowing elastic deformation for the female thread of the ring to fit the male thread of the rigid body.
Claims9
A casing made of molded plastic material comprising:
- a rigid hollow body having a back panel and a side wall with a surface of revolution equipped with an end part located opposite said back panel, said side wall having an external surface and an inner surface,
- a closing cover coming into engagement against said end part,
- said side wall defining a male thread arranged along said external surface of said side wall,
- a flexible fixing ring having an internal female thread designed to be screwed onto said male thread to ensure that said closing cover is held stably against said end part, said female thread having a last notch close to a front part of said flexible fixing ring,
- said end part, having a non-circular sectional configuration,
- said closing cover having a base part with a sectional configuration appreciably the same as that of said end part,
- said base part having fixing means for inserting said base part into said last notch of said female thread,
- said flexible fixing ring having serration means arranged internally of said flexible fixing ring so as to define a series of hinges allowing elastic deformation of said flexible fixing ring to make the shape of said female thread fit that of said male thread of said rigid hollow body.
5 more elements
A casing made of molded plastic material comprising:
- a rigid hollow body having a back panel and a side wall with a surface of revolution equipped with an end part located opposite the back panel, said side wall having an external surface and an inner surface,
- a closing cover for engagement with said end part,
- said side wall defining a male first thread arranged along said external surface of said side wall,
- a flexible fixing ring made by plastic injection of a flexible part having a cylindrical initial shape and having an internal female third thread designed to be screwed onto said male first thread to ensure that said closing cover is held stably against said end part, said female third thread having a last notch close to a front part of said flexible fixing ring,
- said end part having a non-circular sectional configuration,
- said closing cover having a base part with a sectional configuration appreciably the same as that of said end part,
- said flexible fixing ring defining internal serration means so as to define a series of hinges allowing an elastic deformation of said flexible fixing ring to make the shape of said female third thread fit that of said male first thread of said rigid hollow body,
- and said base part having a male second thread located on an external lateral surface of said base part, and said male second thread cooperating with said last notch of said female third thread, so as to achieve captive assembly of said closing cover on said flexible fixing ring when unscrewing of said flexible fixing ring is performed.
5 more elements
Dependencies are inferred from the claim text.