Shackle
AssigneeRigging Concepts Limited
InventorNicholas Jerzy Thomas Nicholson
Life of this patent
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Abstract
The present invention relates to a shackle. The shackle comprises a shackle body for use with a shackle pin. The shackle body comprises a flexible elongate member comprising at least one length of rope circuitously formed so that the flexible elongate member passes through itself and defines three sequentially adjacent noose portions Three sequentially adjacent noose portions comprise an intermediate noose portion and two end noose portions at opposing ends of the shackle body.
Claims20
A shackle comprising:
- a shackle body for use with a shackle pin, the shackle body comprising:
- a flexible elongate member comprising at least one length of rope circuitously formed so that the flexible elongate member passes through itself and defines three sequentially adjacent noose portions, the three sequentially adjacent noose portions comprising an intermediate noose portion and two end noose portions at opposing ends of the shackle body,
- wherein the at least one length of rope comprises a continuous integrally formed length of rope or a continuous length of rope formed via end-joining of a plurality of discrete non-continuous lengths of rope, and
- wherein a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions.
A pin assembly comprising:
- a shackle body for use with a shackle pin, the shackle body comprising:
- a flexible elongate member comprising at least one length of rope circuitously formed so that the flexible elongate member passes through itself and defines three sequentially adjacent noose portions, the three sequentially adjacent noose portions comprise an intermediate noose portion and two end noose portions at opposing ends of the shackle body,
- wherein the at least one length of rope comprises a continuous integrally formed length of rope or a continuous length of rope formed via end-joining of a plurality of discrete non-continuous lengths of rope, and
- wherein a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions;
- and
- a clamping member that is configured to move between a clamped position and an unclamped position, wherein when in the clamped position the clamping member is configured to clamp at least one end of the pin thereby facilitating locking and securing of the pin within the eyes of the end noose portions, and when in when in the unclamped position the clamping member is configured to unclamp the pin thereby allowing release of the pin from the eyes of the end noose portions.
A method of forming the flexible elongate member of the shackle of any one of the preceding claims, the method comprising:
- a) providing at least one length of rope that is either:
- i. a continuous integrally formed length of rope;
- or
- ii. a continuous length of rope formed via end-joining of a plurality of discrete non-continuous lengths of rope;
- b) circuitously arranging said at least one length of rope to form a lap or loop on a continuous endless circuit, wherein on the lap or loop the at least one length of rope passes through itself at two intersections;
- c) either performing step b) once such that said at least one length of rope forms a single lap or loop about the continuous endless circuit, or repeating step b) such that said at least one length of rope forms a plurality of laps or loops on the continuous endless circuit so as to define a corresponding plurality of rope sections of the at least one length of rope;
- d) end-joining the at least one length of rope to itself so as to define three sequentially adjacent continuous rope-enclosed noose portions comprising an intermediate noose portion defined between the two intersections and two end noose portions at opposing ends thereof.
A shackle comprising:
- a shackle pin;
- a shackle body coupled to the shackle pin, the shackle body comprising:
- a flexible elongated member comprising of at least one length of rope arranged into a continuous endless circuit,
- wherein the circuit is of a double twisted configuration where the flexible elongated member defines two end noose portions at opposing ends thereof and an intermediate noose portion therebetween,
- wherein the flexible elongated member twice passing through itself at intersections between the intermediate noose portion and the end noose portions, and
- wherein a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions.
A shackle body for use with a shackle pin, the shackle body comprising:
- a flexible elongated member comprising of at least one length of rope arranged as a continuous endless loop that is double twisted and defining between two ends of the loop a first notional section of said elongated member and a second notional section of said elongated member,
- wherein:
- at a first twist of the loop the first section of said elongated member passes through a parting of the second section, and
- at the second twist of the loop the second section of said elongated member passes through a parting of the first section,
- wherein the at least one length of rope comprises a continuous integrally formed length of rope or a continuous length of rope formed via end-joining of a plurality of discrete non-continuous lengths of rope, and
- wherein a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions.
A shackle comprising:
- a shackle body for use with a shackle pin, the shackle body comprising:
- a flexible elongate member comprising at least one length of rope circuitously formed so as to define a continuous endless circuit such that the flexible elongate member passes through itself at two intersections of itself and defines three sequentially adjacent noose portions comprising an intermediate noose portion and two end noose portions at opposing ends of the shackle body, wherein:
- (i) a first intersection of the two intersections defines a transition of the flexible elongate member from the intermediate noose portion to a first end noose portion of the two end noose portions, and a second intersection of the two intersections defines a transition of the flexible elongate member from the intermediate noose portion to a second end noose portion of the two end noose portions, and
- (ii) a contraction or extension of the intermediate noose portion causes a movement of said length of rope through the two intersections, thereby effecting a proportional tightening or loosening of one or each of said end noose portions such that when the shackle pin is used with the shackle, and extends through eyes defined by the end noose portions, a tightening of said end noose portions promotes a contraction of said eyes about said shackle pin and a corresponding coupling of the shackle pin to the shackle body,
- wherein the at least one length of rope comprises a continuous integrally formed length of rope or a continuous length of rope formed via end-joining of a plurality of discrete non-continuous lengths of rope, and
- wherein a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions.
A shackle comprising:
- a shackle body for use with a shackle pin, the shackle body comprising:
- a flexible elongate member comprising at least one length of rope circuitously formed so as to define a continuous endless circuit such that the flexible elongate member passes through itself at two intersections of itself and defines three sequentially adjacent noose portions comprising an intermediate noose portion and two end noose portions at opposing ends of the shackle body, the at least one length of rope comprising a plurality of rope sections of said length of rope arranged in a coplanar, parallel, near-adjacent and/or near-contiguous arrangement relative one another, wherein:
- (i) a first intersection of the two intersections defines a transition of the flexible elongate member from the intermediate noose portion to a first end noose portion of the two end noose portions, and a second intersection of the two intersections defines a transition of the flexible elongate member from the intermediate noose portion to a second end noose portion of the two end noose portions, and
- (ii) a contraction or extension of the intermediate noose portion causes a movement of said length of rope through the two intersections, thereby effecting a proportional tightening or loosening of one or each of said end noose portions such that when the shackle pin is used with the shackle, and extends through eyes defined by the end noose portions, a tightening of said end noose portions promotes a contraction of said eyes about said shackle pin and a corresponding coupling of the shackle pin to the shackle body, and
- (iii) a contraction or extension of the intermediate noose portion causes a movement of said length of rope through where the elongate member passes through itself, thereby effecting a proportional tightening or loosening of one or each of said end noose portions.
Dependencies are inferred from the claim text.