Buckles – buttons – clasps – etc. – Bale and package ties – hose clamps – Wire
Patent
1998-12-29
2000-02-08
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Bale and package ties, hose clamps
Wire
24 20R, 24 26, 24 29, 24283, B65D 6300
Patent
active
060215518
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a clamping collar constituted by a semi-rigid wire that is rolled up to form at least one turn.
The term "semi-rigid wire" is used to designate a wire made of a material that is sufficiently plastic to enable the wire to remain rolled up at rest, while still retaining a degree of elasticity. Such a material is, for example, a metal (spring steel, stainless steel, quenched steel, or any other suitable type of metal material), or any other material, in particular a synthetic material, possessing mechanical characteristics giving it a degree of rigidity.
The wire has a cross-section of a size that is comparable in all directions and that is very considerably smaller than its length. Typically, its section is circular or substantially circular.
Clamping collars are commonly used for clamping one object onto another, for example for clamping a rubber hose onto a rigid tubular endpiece.
Document FR-A-2 553 153 discloses a wire collar constituted by a semi-rigid wire rolled up to form two turns, a first end of the collar is provided with a hook, while a second end thereof is folded over to form an extension including a fastening surface for the hook. The hook is formed by a U-shaped fold forming a bridge between the two turns, while the extensions of the two turns themselves have respective small hooking turns whose ends comprise the fastening surface.
In one of the variants proposed in that document, in which each of the extensions is wound over two successive fastening turns, it is possible to obtain a position in which the hook lies inside the first fastening turn, thereby enabling pre-fastening to be obtained. To achieve this situation, it is necessary to reduce the diameter of the collar considerably since it is necessary to cause the hook to pass beneath the free ends of the extensions, i.e. beyond the normal fastening position, and to cause it to penetrate into the first fastening turns of the extensions. Thereafter, to reach the fastening position starting from the pre-fastening position, it is necessary to reduce the diameter of the collar and to ensure that the hook comes properly into position at the free ends of the extensions.
That collar suffers from several drawbacks. Firstly, it is not easy to obtain the pre-fastening position since bringing the hook beneath the fastening turns corresponds to a movement which is unnatural. Secondly, in the closed position of the collar, the retaining member for the hook is constituted by the curved outer periphery of the second fastening turn. This sole engagement is not secure and there is a high risk of the collar coming undone.
The present invention relates to a clamping collar of the above-mentioned type constituted by a semi-rigid wire rolled up to form at least one turn having a first end provided with a hook formed in a fold of the wire extending substantially transversely to the plane of the turn and a second end that is folded back outwardly to form an extension extending substantially in the same plane as the turn.
The invention seeks to remedy the drawbacks of the above-mentioned prior art by proposing pre-fastening that is easier to implement and fastening that is more secure.
This object is achieved by the fact that the extension includes a fastening fold forming a setback which, when considered in the direction going towards the free end of the extension, is directed towards the turn, and by the fact that said extension includes a pre-fastening fold situated between the end of the extension where it is connected to the turn, and the fastening fold thereof, the pre-fastening folds being likewise directed towards the turn.
It will be understood that by means of these dispositions, the pre-fastening position is obtained in a manner that is entirely natural, merely by causing the diameter of the turn to go from the diameter it presents in the open state to its pre-fastening diameter, which is greater than the diameter of the collar in the clamped state. While this is being done, there is no need at any time to bring the d
REFERENCES:
patent: 0302202 (1884-07-01), Griswold
patent: 0302243 (1884-07-01), Evans
patent: 1277077 (1918-08-01), Ireland
patent: 1557111 (1925-10-01), Rutledge
patent: 4041931 (1977-08-01), Elliott et al.
patent: 4296534 (1981-10-01), Nagano
patent: 5083347 (1992-01-01), Bucciero
Andre Michel
Detable Pascal
Etablissements Caillau
Kang Gregory B.
Nath Gary M.
Sakran Victor N.
LandOfFree
Wire clamping collar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wire clamping collar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wire clamping collar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1672182