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US 5,906,453 AGranted
Joint forming devices
AssigneeTitus International PLC
InventorsJerry D. Grieser, Richard A. Nelson, Steven R. Munday, William E.T. Vallance
Life of this patent
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AssigneeTitus International PLC
InventorsJerry D. Grieser, Richard A. Nelson, Steven R. Munday, William E.T. Vallance
Estimating the term…
An elongate fastening element for a device for use in forming a joint between two members having at least one engaging surface cooperably engageable with a respective arcuate camming surface of a rotatable tightening element. In use, the fastening element is fitted to one of the joint members and the tightening element is fitted to the other joint member. Rotation of the tightening element about its axis of rotation causes axial movement of the fastening element towards that axis of rotation to cause a joint formed between the two members by means of the device to tighten. The or each engaging surface is provided on a leading end portion of the fastening element and has a profile configured such that engagement with the respective camming surface is at least a line contact occurring over substantially the entire length of the engaging surface.
A device for use in forming a joint between a first joint member and a second joint member, the device comprising a tightening element, a mounting means to be fitted to said first joint member for mounting said tightening element to said first joint member and an elongate fastening element having a longitudinal axis to be fitted to the second said joint member, said tightening element having an arcuate camming surface facing radially inwardly towards an axis of rotation of the tightening element and cooperably engageable with an engaging surface of said fastening element whereby rotation of said tightening element in one direction about an axis of rotation thereof causes said fastening element to be pulled axially in a direction towards said axis of rotation to cause a joint formed between said first and second joint members with said device to tighten, wherein said camming surface extends (i) axially outwardly or (ii) axially outwardly and radially outwardly with respect to said axis of rotation of the tightening element towards a free edge and said mounting means is adapted to rotatably mount said tightening element such that, in use, said axis of rotation is inclined with respect to the longitudinal axis of the fastening element such that in the region of engagement of the arcuate camming surface and said engaging surface and in a direction transverse the length of the camming surface, the camming surface is oriented to provide an undercut whereby said cooperable engagement is such that in use during such tightening there is substantially no reduction of the extent of said engagement.
A device for use in forming a joint between a first joint member and a second joint member, the device comprising a tightening element, a mounting means to be fitted to said first joint member for mounting said tightening element to said first joint member and an elongate fastening element having a longitudinal axis to be fitted to the second said joint member, sad tightening element having an arcuate camming surface facing radially inwardly towards an axis of rotation of the tightening element and cooperably engageable with an engaging surface of said fastening element whereby rotation of said tightening element in one direction about an axis of rotation thereof causes said fastening element to be pulled axially in a direction towards said axis of rotation to cause a joint formed between said two members with said device to tighten, wherein said camming surface extends axially outwardly and radially outwardly with respect to said axis of rotation of the tightening element towards a free edge and said mounting means is adapted to rotatably mount said tightening element such that, in use, said axis of rotation of the tightening element is inclined with respect to said longitudinal axis of the fastening element such that in the region of an overlap of the arcuate camming surface and the engaging surface in a direction transverse the arcuate length of the camming surface, the camming surface is perpendicular to said longitudinal axis of said fastening element whereby said cooperable engagement is such that in use during such tightening there is substantially no reduction of said overlap.
A device for use in forming a joint between two members, the device comprising a tightening element to be fixed to one of said members and an elongate fastening element having a longitudinal axis to be fitted to the other of said members, said tightening element having at least one undercut camming surface which curves continuously in the lengthwise direction thereof and is cooperably engageable with a respective engaging surface of said fastening element that is complementary to said camming surface whereby rotation of said tightening element about an axis of rotation thereof causes axial movement of said fastening element in a direction towards said axis of rotation to cause a joint formed between said two members with said device to tighten, the or each said engaging surface having a length extending transversely of said axis from one side of said fastening element to an opposite side thereof, the arrangement being such that said cooperable engagement with the respective camming surface in the direction of the length of the camming surface is at least a line contact occurring over substantially the entire said length of the engaging surface.
Dependencies are inferred from the claim text.