Original Publication Date: 1985-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Xerox Disclosure Journal
Shown in the figure is a low-cost spring guide. It provides, for example, connection and support for a cornpression spring between one portion of a copier and another (moving) portion, such as a baffle or cover which must be opened for access to a paper path or document path for jam clearance. This spring guide consists of two identical but mating parts. Because the parts are identical they may be made from the same mold to save tooling costs as compared to a conventional spring guide. The two parts slidably mate so as to provide axial relative movement therebetween to allow for compression and expansion of the spring and relative movement of the two connected components. Because the mating parts are pairs of opposing cylindrical quadrant pins of the same diameter, when fitted together they prevent relative rotation yet present an integral cylindrical surface with a common axis for the support of the compression spring thereover. The two slide pins on one part rnate at 90 degrees of rotation into the two empty quadrant sectors between the two slide pins of the other part. The resultant cylinder prevents the compression spring from laterally def Iecting as it is compressed by movement of the copier components mounted to the ends of the unit. Both guide parts have an integral end flange for retaining one end of the compression spring, and also an integral apertured end mounting tab. Since the mating configuration prevents relative rotation between said two opposing end mounting tabs, it can provide partial structural support for the member connected thereto. Additional means (not shown) may be provided for limiting the maximum sliding movement of the two parts away from one another, so as to prevent the two parts from separating after they have been assembled with the compression spring. For example, the ends of the compression spring may be secured to said flanges by epoxy cement or the like.