Buckles – buttons – clasps – etc. – Cord and rope holders – One-piece
Patent
1991-06-03
1993-06-22
Brittain, James R.
Buckles, buttons, clasps, etc.
Cord and rope holders
One-piece
410 98, F16G 1114
Patent
active
052207099
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
This invention relates to a device for securely tightening a rope across a load.
BACKGROUND ART
Commonly, the payload on trucks is stabilised by the process of tying one end of a rope to one fixed point of the truck, extending the other end of the rope around the load, looping the rope about a fixed receiving point, then securely tightening the rope around the load by tying one or more hitch knots, also known as sheep shanks, back along the length of the rope. However, the jolting motion of the truck causes the load to exert a force against the rope, leading to a loosening of the grip of the knot. The risk of the load moving independently of the truck poses a foreseeable risk of danger. Furthermore, the knot itself may threaten to interfere with vehicles passing nearby. For instance the loop of the hitch knot normally extends some distance from the side of the truck when not properly concealed, and can attach to vehicles passing in close proximity.
Earlier Australian patent application no. 33,646/89 by the same applicant discloses a rope tying device having a rope fixing means, a tensioning means and a receiving means, the arrangement being such that a portion of the free end of the rope is fixed to the fixing means and the free end of the rope is passed around a first anchor site external of the device and then a portion of the free end of the rope downstream thereof engages on the tensioning means whereby the rope is maintained under tension and the remaining free end of the rope is passed around a second anchor site external of the device and then secured to the receiving means.
However, that invention suffers from the disadvantage that it cannot produce a triple hitch knot which exerts greater pressure upon the load, thereby adding to load stability. Furthermore, the invention of Australian patent application no. 33,646/89 requires that tying off of the free end of the rope be done on the device. The requirement for tying off on the device necessitates that a receiving means be present on the device which can add considerably to the weight thereof. The weight and size of the device should be kept to as low a level as possible, and a receiving means on the device is an unnecessary contributor of the weight because tying off can be done externally of the device.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to overcome or substantially ameliorate the abovementioned disadvantages.
The present invention contemplates tying off on a fixed point of the vehicle or other structure upon which the load is carried. The weight and size that is saved by removing the receiving means from the device can allow for the addition of a second or more tensioning hooks, thus facilitating the formation of a triple hitch knot to secure the load.
Accordingly, the present invention provides a device for securely tightening the free end of a rope across a load, comprising an elongated member having a rope fixing means and a pair of spaced apart tensioning arms, the arrangement being such that in use the device is substantially vertical with the tensioning arms being substantially horizontal and a first portion of the free end of the rope is fixed to the fixing means and a portion of the remaining free end of the rope is formed into a loop which is passed around a first anchor site external of the device with a portion of the loop being located over the pair of tensioning arms and the free end of the rope being behind and over the portion of the loop extending between the pair of tensioning arms so that when the free end of the rope is pulled downwardly it pulls the portion of the loop that extends between the pair of tensioning arms downwardly to cause tension to be applied to the rope, with the free end of the rope then being secured to a second anchor site external of the device.
The device of the invention has the advantage of providing a frame about which the free end of a rope may be configured in such a way to provide a triple hitch knot that tightly secures the rope to a fix
REFERENCES:
patent: 465577 (1891-12-01), Kiefer
patent: 686477 (1901-11-01), Priddat
patent: 986014 (1911-03-01), Krenzke
patent: 1278092 (1918-09-01), Bauer
patent: 1421026 (1922-06-01), Regan
patent: 2450358 (1948-09-01), Romano
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