Buckles – buttons – clasps – etc. – Drawstring – laced-fastener – or separate essential... – Having eyelet type directing means
Patent
1997-08-05
1998-12-29
Knight, Anthony
Buckles, buttons, clasps, etc.
Drawstring, laced-fastener, or separate essential...
Having eyelet type directing means
247126, 247122, A43C 704
Patent
active
058528571
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a jamming device as described in the introductory part of claim 1.
For lacing shoes, jackets or trousers, there exist variously shaped hooks, rings, eyes etc. for the fastening means such as shoelaces for example. For footwear with extended uppers, such as work, walking and sport shoes for example, there are exacting requirements regarding the security of the lacing, and also the comfort of the wearer, which greatly depends on the proper functioning of the lacing elements. One altogether essential requirement for the comfort of this kind of footwear is that it should be possible for the wearer to adopt different tensions in different regions of the lacing.
The object of the invention is to form a jamming device for a cord or tape fastener so that when a shoelace, for example, is being pulled tight it runs through the device freely, but can be securely jammed with the desired tension.
The object of the invention is achieved by the features set out in claim 1. Surprisingly these have the advantage that the design according to the invention of the ring lug and jamming cleat allows the fastening means, such as a shoelace for example, to pass freely through as the shoe is being laced up (and also as it is being unlaced), but the shoelace can be secured by hinging the ring lug down into a jamming position. Yet it also allows a different tension, and hence different clasping forces, to be applied in adjacent regions of the lacing, so that lower tension is applied for example to parts which are more sensitive to pressure, such as the instep, than, say, the region between shin and instep.
A design according to claim 2 is also advantageous: this provides effective jamming of the fastening means.
An embodiment according to claim 3 is also advantageous: this jams the fastening means over the entire region of the jamming cleat which is surrounded by the ring lug.
One possible advantageous development is described in claim 4: here the jamming device, in particular the cleat, can be made in one production operation, resulting in a reduction in production costs.
Also advantageous is a design as described in claim 5, as this allows the fixing tab to be made extremely thin and flexible, with thickening only in the jamming region and/or the region of the ring lug mounting, resulting in a reduction in both material and production costs. Moreover the resistance to bending and the strength of the fixing device can be varied to suit the particular application.
Also advantageous is an embodiment according to claim 6, as it provides effective jamming in the region of the wraparound of the fastening means and increases the area of contact between fastening means, ring lug and jamming cleat, resulting in improved positive locking and frictional connection of the fastening means and so-called overcentre locking to prevent accidental loosening.
A possible advantageous development is described in claim 7: this allows the ring lug to be swung above the jamming cleat, which is particularly advantageous when the fastening means is initially threaded through the ring lug.
Also advantageous is a design according to claim 8: this allows a further saving of material without adversely affecting the strength of the hinge bearing.
An embodiment according to claim 9 is also favourable: this provides effective jamming of the fastening means in the jamming device.
A development according to claim 10 is also possible: this gives the jamming device elasticity and an attractive appearance in a simple way and at low material and production cost, without sacrificing strength, especially in the hinge bearing.
A construction according to claim 11 has the advantage that the mounting for the ring lug can be produced in a simple manner.
An alternative embodiment according to claim 12 is advantageous: this enables the jamming cleat with its fixing tab and the rivet strap to be fabricated in separate equipment, and only joined together at the moment of assembly of the jamming device consisting of these parts on an article of clothing.
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Mark Rudolf
Mark Thomas
Knight Anthony
Sandy Robert J.
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