Buckles – buttons – clasps – etc. – Cord and rope holders – One-piece
Patent
1993-03-10
1994-08-23
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Cord and rope holders
One-piece
24130, A44B 2100
Patent
active
053394976
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for power exerting connection to a flexible elongated pulling means. The device is especially intended for fixing an attachment along the extension of a rope or a cord or the like in such a manner, that the end portions of the rope or the cord need not be threaded through any part of the device. The invention also relates to a specific use of the device.
Several methods and devices are known for fixing ropes, cords or the like to different objects, in order to make, in this manner, possible the exertion of power with or upon the rope. Usually the methods comprise the forming of a more or less strong and more or less complicated knot, so that different loops of said rope will lock underlying loops, thus preventing slipping.
Usually the tying of strong knots comprises threading one free end of said rope or cord through loops or the like formations, or around fixed obstacles. Difficulties, however, arise if one wishes to fix an attachment along a rope the ends of which are not for some reason free. Traditionally in such cases one has used a loop of the rope, which loop then has been tied into a suitable knot. Such knots are, however, never as strong as a corresponding knot on a single rope, and therefore there is always a risk for slipping, which in some cases may be fatal.
Another drawback with conventional knots is the fact, that only a few special knots are suitable for accommodating strong forces in such a way that the knot may still be easily opened after the rope or cord has once been stretched to its limits.
Various arrangements have been developed in order to solve the above problem, in which arrangements a device is mechanically tightened to a rope or cord. In most such arrangements the problem remains that the rope or cord itself is intended to pass through holes or apertures in the device, which thus cannot be used in cases where both ends of the rope are fixed or for some other reason difficult to thread, due for example to the rope length or the end structure of the rope. Further, special pulling devices have been developed for fixing a steel wire or some other essentially non-bending pulling means. Such devices are, however, technically complicated and charge the pulling means with teeth or the like means. U.S. Pat. No. 3,930,288 on the other hand discloses a complicated device for the branching of ropes.
Further, conventional cleats are known, at which a rope is locked by winding it several times in loops located one upon the other, moving it to and from around a fixed pin or the like until the rope successively locks itself so that a reliable attachment is achieved. The drawback with such a cleat is that for a satisfactory function it needs a considerable amount of rope. A conventional cleat device is further so designed that it cannot be used in any suitable manner standing free from a fixed structure.
The object of the present invention is to provide a fastening device which can be fastened by simple manipulation at a nearly arbitrary position along a rope or a cord. The device is further such, that it works independently of whether it is totally loose and free standing or is connected to a fixed structure. The attachment of the pulling means, for example the rope or the cord, is such that said attachment without slipping will withstand a stress equal to the stress in the rope itself but may and still thereafter be loosened by a simple manipulation.
The characteristic features of the invention are indicated in the attached claims. Thus the invention is characterized by the device having at least three elements extending in different directions, said elements having contact surfaces at which an elongated pulling means is to be wound. The winding proper is made so that a first loop of said pulling means runs from one first essentially unstressed end thereof along a first contact surface at a first leg of the device. Thereafter said pulling means runs over a second contact surface at a second leg and behind an essentially pin like protrusion having a third cont
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