Toggle-lever power amplifier
AssigneeSaurer-Allma GmbH Allgauer Maschinenbau
InventorPeter Preisenhammer
Life of this patent
Estimating the term…
Abstract
Toggle-lever construction especially for a vise or similar holdng means. There is provided a toggle-lever construction in which one end thereof is backed against a suitable anchor device and the other end thereof bears against movable means such as the jaw of a vise. A relatively light force applied laterally of the toggle will produce a large force longitudinally thereof. In one embodiment the lateral force is applied by a longitudinally moving tapered screw. Wear on the toggle is minimized by providing rounded ends having substantially only a line contact between the components of the toggle with respect to each other and between the components of the toggle and the means engaging the respective free ends thereof.
Claims15
A toggle-lever power amplifier comprising a central axis and a plurality of toggle-lever pairs symmetrically and concentrically arranged around said axis, one of whose levers is supported on a stationary abutment means and whose other lever is supported on a movable pressure block means forming the high-pressure part, a low-pressure part having inclined pressure surfaces engaging in each case a counter-pressure surface on one toggle-lever of each of said toggle-lever pairs, said low-pressure part being positioned between these toggle-lever pairs and slidable in the direction of movement of said pressure block means and acting on said counter-pressure surface on said one toggle with a force directed approximately perpendicular to said one toggle, said two toggle-levers of each pair being supported directly on one another and on said stationary abutment means and said pressure block means and all supporting surfaces roll on one another with line contact during the movement of said toggle-lever pairs, each of said supporting surfaces on said toggle-lever pairs which roll on one another having means defining a recess therein and a roller element is loosely received in said recess while maintaining the support between said supporting surfaces which roll on one another.
A toggle-lever power amplifier for use between stationary abutment means and movable pressure block means, comprising:
- a plurality of pairs of elongated toggle levers symmetrically arranged with respect to one another and concentrically with respect to the longitudinal axis of said power amplifier, the toggle levers of each pair being in direct engagement with one another at the mutually common ends thereof, the opposite end of one of said toggle levers engaging said stationary abutment means, the opposite end of the other of said toggle levers engaging said movable pressure block means;
- roll surface means on said ends of each of said toggle levers and on said stationary abutment means and said movable pressure block means for causing a rolling line contact at said locations of engagement therebetween during relative movement between said toggle levers and said stationary abutment means and said movable pressure block means, said roll surface means facilitating a friction free rolling of said toggle levers against each other at said common end, each of said roll surface means at said common end on said toggle-levers of each pair having means defining a recess therein and a roller element loosely received in said recess while maintaining said friction-free rolling of said toggle-levers against each other at said common end;
- low pressure means engaging said one of said toggle levers in each toggle-lever pair and applying a force thereto which is substantially perpendicular to the longitudinal axis of said one of said toggle levers upon a movement of said low-pressure means relative to said one of said toggle levers;
- and
- support means for supporting said low-pressure means for movement relative to said one of said toggle levers of each toggle-lever pair.
Dependencies are inferred from the claim text.