US 6,578,328 B2Granted

Device for anchoring one end of a stay to a base

AssigneeVSL International AG

InventorsYves Bournand, Adrian Gn{overscore (a)}gi, Juan Ayats

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Abstract

A device (1) is disclosed for anchoring one end (2A) of a stay (2) to a base (3), this end (2A) of the stay (2) comprising at least two strands (2B) which diverge from its longitudinal axis (2C) in such a way as to come to be anchored in the device (1), these strands (2B) each being made up of a core wire (2D) and a protective sheathing (2E), the device itself being intended to be positioned and immobilised in translation in a bore (3A) provided in the base (3), this device (1) comprising a first rigid unit (4), which: is delimited transversally by a cylindrical face (4A) and longitudinally by two opposite faces (4B, 4C) substantially orthogonal to the longitudinal axis (4D) of said first unit (4), is traversed by perforations (4E) which, made substantially parallel to its longitudinal axis (4D), are each intended for passage of one end (2F), devoid of sheathing (2E), of a strand (2B) of the stay (2), and each including a bearing surface (4F) intended to co-operate with an immobilisation piece (4G) of such an end (2A) devoid of sheathing (2E), bears at least one tubular element (5C) to cover, over a certain distance (L1) measured from one (4C) of its opposite faces (4B, 4C), the bundle of strands (2B) in a water-tight way at least in its part where the strands (2B) are devoid of sheathing (2E).

Claims44

Dependent claims

A device for anchoring one end of a stay to a base having a bore therein, said stay end comprising at least two strands that diverge from a longitudinal axis thereof to be anchored in the device, said strands each being made up of a core wire and a protective sheathing, said device intended to be positioned and immobilized in translation in the bore, said device comprising:

a first rigid unit, and
a second rigid unit, said second rigid unit being substantially cylindrical;
wherein said first rigid unit is delimited transversally by a cylindrical face and longitudinally by two opposite faces that are substantially orthogonal to a longitudinal axis thereof;
wherein said first rigid unit is traversed by perforations that, made substantially parallel to said longitudinal axis, each pass an end, devoid of sheathing, of one said strand, and which each include a bearing surface to co-operate with an immobilization piece on such an unsheathed strand end;
wherein said first rigid unit further bears at least one tubular element to cover, over a certain distance measured from one of the opposite faces, the strands in a water-tight way at least in the part of the strands that are devoid of sheathing;
and
wherein the second rigid unit is rigidly connected to said first unit, and
wherein the second rigid unit has at least two independent channels that, running substantially parallel and in each case in the prolongation of one said perforation of the first rigid unit, each have a first end thereof connected in a water-tight way to the first rigid unit and a second end thereof having a first locally water-tight pressing surface around the sheath of one said strand, when said strand is engaged in the channel, the second channel end having a second surface of lateral support for the sheath of the strand in view of the deviation of said strand from an axis of the channel, which receives the strand, toward the longitudinal axis of the stay end.

5 more elements

A method for obtaining a device for anchoring an end of a stay to a base, this stay end comprising at least two strands that diverge from a longitudinal axis of the stay such as to become anchored in the device, said strands each being made up of a core wire and a protective sheathing, the device being intended to be positioned and immobilised in translation in a boring provided in the base, the method comprising:

providing a first unit that is provided which is delimited transversally by a cylindrical face and longitudinally by two opposite faces substantially orthogonal to a longitudinal axis of the said first unit, the first unit being traversed by perforations, made substantially parallel to the longitudinal axis, which are each intended for the passage of an end of one said stay strand, said end being devoid of sheathing and each comprising a bearing surface to co-operate with an immobilisation piece of such said end devoid of sheathing, and bearing at least one tubular element to cover, over a certain distance measured from one of said opposite faces, a bundle of said strands in a water-tight way at least in its part where the strands are devoid of sheathing, and
providing a second rigid unit, substantially cylindrical, which is built against one said opposite face of the first unit, which is the face for bearing at least one tubular element to cover the bundle of strands at least in its part where the strands are devoid of sheathing, which second rigid unit is rigidly connected to said first unit, this second rigid unit having at least two channels that extend substantially parallel, each in the prolongation of a perforation of the first unit, each having one of their ends which is connected in a water-tight way to the first unit and the other end bearing, a first locally water-tight pressing surface around the sheath covering the core wire of one said strand when engaged in the channel, and a second surface of lateral support for the sheath of a strand provided with a view to the deviation of this strand from the axis of the channel which receives it toward the longitudinal axis of the stay end.

Dependencies are inferred from the claim text.

Facts

Application: 10/058,590Filed 28 Jan 2002
Priority: EP 0181008329 Jan 2001
Published: US 2002/0108329 A115 Aug 2002
Granted: 17 Jun 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

E02D 5/808
Ground anchors: anchored by using exclusively a bonding material
E01D 19/14
Structural or constructional details of bridges: towers; Anchors ; Connection of cables to bridge parts; Saddle supports
E04C 5/122
Anchoring devices: the tensile members are anchored by wedge-action
E02D 2600/30
Miscellaneous: comprising anchoring details