Browse Prior Art Database

FLEXIBLE DRIVE COUPLINGS

IP.com Disclosure Number: IPCOM000025298D
Original Publication Date: 1984-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 4 page(s) / 175K

Publishing Venue

Xerox Disclosure Journal

Abstract

A flexible, quick-disconnect coupling is shown in Figure 1 for connecting drive subsystems within, for example, copiers. In order to accomodate ready disas-sembly/assembly both during manufacture and in the field by technical repre-sentatives for maintenance, the couplings must be capable of connection with misalignment in all three directions; i.e., in the X, Y and 2 direction.

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Page 1 of 4

XEROX DISCLOSURE JOURNAL

FLEXIBLE DRIVE COUPLINGS Philip L. Harrison
Eugene F. Cloutier

Proposed Classification
U.S.
C1. 464/106 Int. C1. F16d 3/00

/2

FIG I

FIG 20 FIG 2b FIG 2c

FIG. 2d FIG 2e

Volume 9 Number 3 May/June 1984 229

[This page contains 1 picture or other non-text object]

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FLEXIBLE DRIVE COUPLINGS (Cont'd)

FIG. 5u FIG 5b

70 -

f

230 XEROX DISCLOSURE JOURNAL

Volume 9 Number 3 May/June 1984

[This page contains 1 picture or other non-text object]

Page 3 of 4

FLEXIBLE DRIVE COUPLINGS (Cont'd)

A flexible, quick-disconnect coupling is shown in Figure 1 for connecting drive subsystems within, for example, copiers. In order to accomodate ready disas- sembly/assembly both during manufacture and in the field by technical repre- sentatives for maintenance, the couplings must be capable of connection with misalignment in all three directions; i.e., in the X, Y and 2 direction.

The quick-disconnect coupling of Figure 1 is a plastic molded coupling 10 with a female side 15 and a male side 12 having a bellows 14. The bellows allows for misalignment in the X, Y and 2 directions. In addition, the bellows will compress if the mating halves of the coupling or shafts 16 and 18 are too close together. Besides for allowing for lax dimensional tolerances in the axial directions between shafts, the bellows will produce enough spring force to maintain the engagement of the quick-disconnect halves when the shafts are rotated.

The coupling halves 12, 15 may be molded from plastic materials such as,for example, polypropylene, nylons, acetals, ionomers, polyurethanes, and thermal plastics. Blow molding or injection molding would provide a low cost manufac- turing technique.

In Figure 1, the male connector half 12 has a protrusion 19 which permits fast centering in a mating recess '20 of the female connector half 15. Each of the connector halves have confronting annular surfaces 22, 24 which are parallel with each other. These surfaces have various configuration on the surface to prevent relative rotation between the connector halves. In Figure 1, the connector half 12 has raised concentric rings 26 which have radial spokes 30 to mesh with the mating concentric recesses 28 of the connector half 15. The female connector half 15 has radial recesses (not shown) to receive the radial spokes 30 of connector half 12. Figures 2a-2e show variations of other quick disconnect interfaces for preventing relative rotation between connector halves. Figure 2a shows raised beads 32 on the annular surface 24 of the female connector half 15 and a recess to receive the cen...