Browse Prior Art Database

CARRIAGE DRIVE ASSEMBLY

IP.com Disclosure Number: IPCOM000023852D
Original Publication Date: 1979-Feb-28
Included in the Prior Art Database: 2004-Apr-01
Document File: 2 page(s) / 296K

Publishing Venue

Xerox Disclosure Journal

Abstract

A pneumatic damping device for smoothly decelerating a moving carriage, e.g., of an optical scanning system of a photocopier, as it approaches an end position. The device comprises a sleeve-likebellows I mounted surrounding a guide rail 24 for the carriage 22 and extending between end walls 2, 3 embracing the rail 24. The fixed end wall 2 is formed by a plastic moulding 4 to which one end of the bellows is secured, The other end of the bellows is shown before assembly. The movable end

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XEROX DISCLOSURE JOURNAL

CARRIAGE DRIVE ASSEMBLY

~Gwynne~larke Alan Edward Russ

Proposed Classification
U.S. Cl. 355/8

mt. Cl. G03g 15/28

A pneumatic damping device for smoothly decelerating a moving carriage, e.g., of an optical scanning system of a photocopier, as it approaches an end position. The device comprises a sleeve~likebellows I mounted surrounding a guide rail 24 for the carriage 22 and extending between end walls 2, 3 embracing the rail 24. The fixed end wall 2 is formed by a plastic moulding 4 to which one end of the bellows is secured, The other end of the bellows is shown before assembly. The movable end

wall 3 is formed by an adaptor 5 slideably mounted on the rail 24 and connected to the carriage 22 by a boss 6 on the carriage which fits in a socket in the adaptor, the parts being held together by a fixing clip 7. The bellows fit over the adaptor and is held in place by a C-~clip8 which squashes the sleeve end into groove 9. A bleed

aperture 10 in the end wall 2 has an adjustable bleed screw II for controlling the damping effect of the device. Alignment guides 12 (Figure 2) are provided within the bellows I to avoid so-~called usnakingu of the bellows and thus maintain alignment of the bellows with the guide rail 24. The bellows is suitably a moulding

of plastic material, e.g., a blow moulding of high density polythene or a dip moulding of polyvinylchloride, and the alignment guides may be part of the

moulding.

7

FIG. /

I

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Volume 4 Number 1 Jan...