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CARRIAGE SUPPORT APPARATUS

IP.com Disclosure Number: IPCOM000022939D
Original Publication Date: 1976-May-31
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 490K

Publishing Venue

Xerox Disclosure Journal

Abstract

A carriage support apparatus 10 comprises an elongate tubular housing 12 having opposing normally open ends 14 and 16. A carriage 18 is capable of being mounted to hous~ ing 12. The apparatus 10 further comprises a pair of linear bearings 20 and 22 mounted in housing 12 adjacent respective opposing ends 14 and 16. The outer surface of each bearing is tightly fitted against a respective one of a pair of recessed portions 24 and 26 of the inner wall 28 of the housing with the opposing inner ends 30 and 32 of the bearings 20 and 22 abutting a respective pair of shoulders 34 and 36. Shoulders 34 and 36 are formed in inner wall 28 at the junctions of the recessed portions 24 and 26 with a remaining intermediate portion 38 of the inner wall.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

CARRIAGE SUPPORT APPARATUS
Mario G. Plaza
Richard D. Trezise

Proposed Classification
U.S. Cl, 308/5
mt.
Cl, F16c 1/24

A carriage support apparatus 10 comprises an elongate
tubular housing 12 having opposing normally open ends 14
and 16. A carriage 18 is capable of being mounted to hous~
ing 12. The apparatus 10 further comprises a pair of linear
bearings 20 and 22 mounted in housing 12 adjacent respective
opposing ends 14 and 16. The outer surface of each bearing
is tightly fitted against a respective one of a pair of
recessed portions 24 and 26 of the inner wall 28 of the
housing with the opposing inner ends 30 and 32 of the
bearings 20 and 22 abutting a respective pair of shoulders
34 and 36. Shoulders 34 and 36 are formed in inner wall 28
at the junctions of the recessed portions 24 and 26 with a
remaining intermediate portion 38 of the inner wall.

Each of the bearings 20 and 22 has an axial length somewhat
smaller than the respective recessed portion of the inner
wall against which it is tightly fitted in order that a
respective one of a pair of lubricating members 40 and 42,
preferably in the form of felt pad rings, may be fitted into
the housing against such respective recessed portion and
then lubricated with a lubricating liquid, such as oil.
Desirably, the rings 40 and 42 abut their respective bear~

LQ~~

Volume 1 Number 5 May 1976 51

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Page 2 of 2

CARRIAGE SUPPORT APPARATUS (Cont'd)

ings. The bearings and felt pad rings all have aligned
central openings through which a shaft 44 may be disposed
in contacting relatively movable relation. Thus, as the
housing 12 is reciprocated back and forth along the shaft
44, the housing rides on bearings 20 and 22 which are
lubricated by the respective felt pad rings. Actually, of
course, the rings lubricate the surface of the shaft which
then lubricates the bearings during moving contact.

Itwill be noted that the housing 12 itself acts as an
environmental shield for the region of the shaft between...