A - Human Necessities – 44 – B
Patent
A - Human Necessities
44
B
24/78
A44B 99/00 (2010.01) F16B 2/16 (2006.01)
Patent
CA 2010622
ABSTRACT A self-clamping device adapted to associate with a material of any shape for the purpose of temporarily securing the device to the material without damaging their surfaces. A clamping action is proportional to their surfaces and a clamping action proportional to their weight and/or to any pulling force exerted thereto, in which a rolling cylinder pinches the material against a wall with a wedge effect. The self-clamping comprises a casing having a lower opening and first and second lateral walls diverging upwardly away from the lower opening with at least one pressing cylinder which rolls along the first wall. The pressing cylinder is urged downwardly by a first elastic element and is urged towards the first wall by a second elastic element. The insertion of the material into the device upwardly from the lower opening pushes the pressing upwardly against the first elastic element and at the same time towards the first wall against the second elastic element. Any downward force exerted upon the material urges the pressing cylinder downwardly and towards the second wall, exerting therefore upon the material the clamping action between the cylinder and the second wall, by the wedge effect that is as strong as the downward action is strong.
Green John
Mcfadden Fincham
LandOfFree
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