Method and apparatus for forming a braided yarn coating over a product, and product thus obtained
AssigneeIsolet Ind. S.R.L.
InventorsMaurizio MONGARDI, Alberto CASTELLO
Life of this patent
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Abstract
A method of forming a braided coating over a product (2, 2A), in particular a flexible product such as a cable, a rope, a pipe, etc., is provided, in which the product (2, 2A), while leaving a coating zone (17) of a braiding machine (100), is submitted to a continuous rotation about its longitudinal axis. A braiding machine (100) for carrying out the method and a coated product obtained with the method are also provided.
Claims15
A method of forming a braided yarn coating over a product having a longitudinal axis, wherein the product, while leaving a coating zone of a braiding apparatus, is submitted to a continuous unidirectional or bidirectional rotation about its longitudinal axis, wherein said product is a flexible product, and in that said rotation, at least in case of a unidirectional rotation, is accompanied by a corresponding and synchronized rotation of the product along a whole path thereof between means feeding the braiding apparatus with the product to be coated and the coating zone and between the latter and means collecting the coated product.
(canceled)
(canceled)
The method according to claim 15, wherein the bidirectional rotation is accompanied by a corresponding and synchronized rotation of the product along the whole path thereof between the means feeding the braiding apparatus with the product to be coated and the coating zone and between the latter and the means collecting the coated product when the distance between a point of entrance of the product into the apparatus and the coating zone is limited.
(canceled)
(canceled)
An apparatus for forming a braided yarn coating over a product having a longitudinal axis, including a mechanism, placed along the path of the coated product at an exit from a coating zone of the apparatus, for imparting a continuous unidirectional or bidirectional rotation to the product about its longitudinal axis, wherein said mechanism includes:
- a worm screw reducer with speed and direction control, which is programmed to make the worm screw rotate either according to a continuous unidirectional rotary movement or according to a bidirectional rotary movement obtained by alternating, at programmed intervals, a rotation in a first direction and a rotation in a second direction opposed to the first;
- and
- means for radially positioning the product leaving the coating zone.
(canceled)
(canceled)
A product having a braided yarn coating including a rightward-twisted weft and a leftward-twisted weft forming, with a longitudinal axis of the product, angles which are different from each other and are variable along the product, wherein one of said wefts forms a substantially null angle with the longitudinal axis of the product, at least over a portion of a product length.
Dependencies are inferred from the claim text.