Browse Prior Art Database

FINE-BLANKED PLATE ASSEMBLY

IP.com Disclosure Number: IPCOM000027134D
Original Publication Date: 1995-Jun-30
Included in the Prior Art Database: 2004-Apr-07
Document File: 2 page(s) / 94K

Publishing Venue

Xerox Disclosure Journal

Abstract

A laminated design is proposed for a drives plate assembly on a developer housing. The process utilizes fine blanking to achieve tolerance control without costly secondary machining operations. Referring to Figure 1, there is shown, by way of an example, a drives plate assembly 10. The drives plate assembly 10 comprises a front plate 20 and a back plate 30. Both the front plate 20 and a back plate 30 are constructed of cold-rolled steel. Front plate 20 has positioned thereon a plurality of bearing mount apertures 42, a plurality of idler shafts 46, a plurality of cover mounting posts 44, and a single semi-piercing detent 50.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

FINE-BLANKED PLATE ASSEMBLY
Merton R. Spear
Jan M. Malicki

Proposed Classification

US. C1.3551245

Int. C1. G03g 15/06

42

FIG. 1

20

FIG. 2

XEROX DISCLOSURE JOURNAL - Vol. 20, No. 3 May/June 1995 235

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FINE-BLANKED PLATE ASSEMBLY (Cont'd)

A laminated design is proposed for a drives plate assembly on a developer housing. The process utilizes fine blanking to achieve tolerance control without costly secondary machining operations. Referring to Figure 1, there is shown, by way of an example, a drives plate assembly 10. The drives plate assembly 10 comprises a front plate 20 and a back plate 30. Both the front plate 20 and a back plate 30 are constructed of cold-rolled steel. Front plate 20
has positioned thereon a plurality of bearing mount apertures 42, a plurality of idler shafts 46, a plurality of cover mounting posts 44, and a single semi- piercing detent 50.

Each plate 20 and 30 is fine-blanked from a set of interchangeable dies and punches. A die set is constructed to create a profile of the front plate 20 and the back plate 30. Interchangeable punches are employed to produce different gear centers for various dimensions which are required for different developer housing configurations.

Referring to Figure 2, the punches shape the semi-piercing detent 50 on the front plate 20 and correspondingly, on to the back plate 30. Semi-piercing detent 50 aligns front plate 20 with t...