Browse Prior Art Database

CABLE TENSIONER

IP.com Disclosure Number: IPCOM000026419D
Original Publication Date: 1991-Dec-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 4 page(s) / 139K

Publishing Venue

Xerox Disclosure Journal

Abstract

Proper cable tension is critical for optimum performance of a cable drive system in a copier or a scanner. A tension that is too low results in jerky carriage motion from a slack in the cable produced by the dynamics of the drive system. On the other hand, tension that is too high generally increases the friction and shortens the cyclic life of the cable.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 55% of the total text.

Page 1 of 4

XEROX DISCLOSURE JOURNAL

CABLE TENSIONER

Proposed Paul J. Kim Classification

U.S. C1.355/235 Int. C1. G03g 15/28

I 0
I
I
I
I

/

/

/

lY

20

4

-1

I

L1

-

T

26 FIG. 1

XEROX DISCLOSURE JOURNAL - Vol16 No 6 NovemberjDecember 1991 359

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

Page 2 of 4

CABLE TENSIONER(Cont'd)

360 XEROX DISCLOSURE JOURNAL - Vol16 No 6 NovembedDecember 1991

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

Page 3 of 4

CABLE TENSIONER(Cont'd)

Proper cable tension is critical for optimum performance of a cable drive system in a copier or a scanner. A tension that is too low results in jerky carriage motion from a slack in the cable produced by the dynamics of the drive system. On the other hand, tension that is too high generally increases the friction and shortens the cyclic life of the cable.

Proposed is a design for a cable tension device that incorporates three functions: 1) tensioning of the cable to a proper level without the use of tools;
2) taking up the cable length tolerance (system-to-system as well as within a system if there is more than one cable); and 3) mounting of an idler pulley. The multifunction nature of this design can yield cost as well as space savings.

Figure 1 is a cross sectional view and Figure 2 is an exploded view of cable tensioner device 10 showing the major components: a stationary body 12, which mounts to the frame; a threaded rod 14 fixed to stationary body 12; a tensioner housing 16 that travels along threaded rod 14; a compression spring 18; a locking nut 22; an idler pulley 24 that mounts to lever arm 20 at point Q; and a cable 26.

Referring especially to Figure 1, the operating principle of device 10 can be illustrated. After cable 24 has been properly routed around the pulleys in the drive system, tensioner housing 16 is turned toward locking nut 22 until compression spring 18 makes contact with lever arm 20 thu...