System for tensioning a coil spring

Details System for tensioning a coil spring System for tensioning a coil spring

2006-08-29

2006-08-29

Watson, Robert C. (Department: 3723)

Metal working

Means to assemble or disassemble

Spring applier or remover

C254S010500

Reexamination Certificate

active

07096550

ABSTRACT:
A system for tensioning a coil spring with a spring vice (120), comprising a first and second pressure plate (40, 1) each, which are disk-shaped or strip-shaped and have a central opening (63, 3) each. The pressure plates (40, 1) can be caused to engage a spring turn of the coil spring each to tension the coil spring. A tensioning device is formed from a threaded pipe and a threaded spindle (41). The threaded spindle (41) has a spindle head (85), which is provided with a wrench profile and via which the threaded spindle (41) is axially supported at the first pressure plate (40) by means of a thrust bearing (43) and wherein the threaded pipe (2) has, at its end located axially opposite the spindle head (85), radially projecting radial fingers (31, 32), by which the threaded pipe (2) can be brought into pulling connection with the second pressure plate (1). To make it possible to embody a tensioning device (2, 41) with the smallest possible diameter, the first pressure plate (40) has a first guide (91) at a radially outer edge area, which can be caused to engage a second guide (90) of the second pressure plate (1). The second guide is arranged in the radially outer edge area of the second pressure plate (1), in an axially adjustable manner. For the pressure plates (1, 40) to be axially adjustable by the two guides (90, 91) and to be connected with one another detachably and nonrotatably in relation to one another.

REFERENCES:
patent: 0 115 774 (1984-08-01), None
patent: 0 271 782 (1988-06-01), None

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