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US 4,422,218 AGranted
Lever-type load binder
AssigneeDominion Chain Inc.
InventorGerald G. Brasseux
Life of this patent
Estimating the term…
Abstract
A lever-type load binder is disclosed in which the necessary force to draw the ends of the binder together is provided by a pivoting lever element. The binder employs a handle for tensioning and releasing the binder. The handle and lever element are constructed so that the handle positively engages the lever element to pivot the lever element on the tensioning stroke. However, the handle is employed merely to trigger the release stroke by rotating the lever element through dead center while the handle is out of the path of travel of the lever element. Because of this feature, the user is not endangered by a "flyback" of the handle when the binder is released.
Claims13
A lever-type load binder comprising:
- a lever member;
- first means for engaging the load binder to a first load, said first means being pivotably attached to said lever member at a first point;
- second means for engaging the load binder to a second load, said second means being pivotably attached to said lever member at a second point, displaced from said first point;
- an actuating handle, pivotable in a first direction about a pivot axis passing through the lever member, for contacting and pivoting said lever member with respect to said first and second engaging means during a tensioning stroke of the handle and pivotable about said pivot axis in a second, opposite direction for triggering the release of the load binder by engaging said lever member with said handle at a point displaced from said pivot axis after the handle has been pivoted in the second direction substantially out of the path of rotation of said lever member, to prevent flyback of the handle on release of the load binder due to rotation of the lever member.
1 more element
A lever-type load binder comprising:
- a lever member;
- first means for engaging the load binder to a first load, which first means is pivotably connected to said lever member to enable said lever member to pivot with respect to said first engaging means about a pivot axis;
- second means for engaging the load binder to a second load, which second engaging means is pivotably connected to said lever member at a point displaced from the point of attachment of said first engaging means;
- and
- actuating means for pivoting said lever member about said pivot axis, said actuating means being pivotably connected to said first engaging means and pivotable with respect to said lever member.
2 more elements
A lever-type force transmitter comprising:
- a lever member;
- first means for engaging the transmitter to, and for transmitting a force to, a first load, said first means being attached to said lever member for pivoting about a pivot axis;
- second means for engaging the transmitter to, and for transmitting a force to, a second load, said second means being pivotably attached to said lever member at a point displaced from the point of attachment of said first means;
- actuating means, pivotable about the pivot axis, for engaging and pivoting said lever member with respect to said first and second means during a force transmission stroke, said actuating means being configured to be pivoted substantially out of the path of rotation of said lever member before the force transmitter is released to prevent flyback of the actuating means.
1 more element
A lever-type load binder comprising:
- a lever member;
- first means for engaging the load binder to a first load, said first means being pivotably attached to said lever member;
- second means for engaging a second load, said second engaging means being attached to said lever member at a point displaced from the point of attachment of said first engaging means;
- an elongated actuating handle pivotably attached to the lever member, and extending outwardly from the lever member a distance substantially greater than the length of the lever member to provide a mechanical advantage during a tensioning stroke of the handle, said actuating handle being pivotable about an axis with respect to the lever member in a first direction wherein it is engageable with means on the lever member for rotating the lever member through a dead center position during the tensioning stroke;
- and said actuating handle being pivotable about its point of attachment with the lever member in a second, opposite direction with respect to the lever member through a return stroke to a position of engagement with means on the lever member displaced from the axis of pivoting of the handle for triggering the release of the lever member over dead center.
2 more elements
A lever-type load binder;
- a first means for transmitting a force to the load;
- a second means for transmitting a force, substantially opposite in direction of the first force, to the load;
- an elongated means for actuating the load-binder;
- and
- means for connecting said first and second transmitting means and said actuating means;
- wherein said first and second transmitting means are pivotably connected to said connecting means at points displaced from one another and said actuating means is pivotably connected to the connecting means, said connecting means having a length approximately equal to the distance of separation between the points of connection of said first and second transmitting means to said connecting means;
- wherein said actuating means is substantially greater in length than said connecting means, and provides a mechanical advantage to facilitate rotation of the connecting means over center to effect tensioning of the load binder;
- and
- wherein at least one of said connecting means and said actuating means is formed with a member by which the actuating means and connecting means couple with one another during a latter part of a return stroke of the actuating means to rotate the connecting means over dead center and, thereby, release the load binder, without the actuating means participating in the rotation of the connecting means over dead center.
6 more elements
Dependencies are inferred from the claim text.