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RACK AND PINION OSCILLATOR

IP.com Disclosure Number: IPCOM000026133D
Original Publication Date: 1990-Aug-31
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 80K

Publishing Venue

Xerox Disclosure Journal

Abstract

A rack and pinion oscillator is used to enable a rotary input to drive a linear Cam. In the drawing, Figure 1 is a front view of the rack and pinion oscillator and Figure 2 is a crossection on the line II-11 in Figure 1. The oscillator comprises a combination input gear and pinion 1,2 both rotatably mounted on a fixed pin 3, the end of which engages in a continuous slot 4 in a housing 5. The pinion 2 engages a continuous rack 6 which is formed in a rack member 7 and which comprises upper and lower parallel tracks joined at each end by short side pieces. The rack member 7 is located within a rectangular opening 10 in the housing 5 so that it is movable in a transverse direction relative to the housing. The housing 5 itself is movable longitudinally, being guided by pins 8 located in longitudinal slots 9 in the housing. The profile of the housing 5 can be shaped to form a linear cam which is to be reciprocated.

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Page 1 of 2

XEROX DISCLOSURE JOURNAL

RACK A-ND PINION OSCILLATOR
Proposed A. F. Wyer U.S. C1.074/422 Classification

Int. C1. F16h 1/04

1

2

LIC

4

5 FIG. I \

7 4

2

-1

\ FIG. 2

10

XEROX DISCLOSURE JOURNAL - VOI. 15, NO. 4 July/August 1990 189

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

Page 2 of 2

RACK AND PINION OSCILLATOR(Cont'd)

A rack and pinion oscillator is used to enable a rotary input to drive a linear

Cam.

In the drawing, Figure 1 is a front view of the rack and pinion oscillator and Figure 2 is a crossection on the line II-11 in Figure 1. The oscillator comprises a combination input gear and pinion 1,2 both rotatably mounted on a fixed pin 3, the end of which engages in a continuous slot 4 in a housing 5. The pinion 2 engages a continuous rack 6 which is formed in a rack member 7 and which comprises upper and lower parallel tracks joined at each end by short side pieces. The rack member 7 is located within a rectangular opening 10 in the housing 5 so that it is movable in a transverse direction relative to the housing. The housing 5 itself is movable longitudinally, being guided by pins 8 located in longitudinal slots 9 in the housing. The profile of the housing 5 can be shaped to form a linear cam which is to be reciprocated.

In use, rotary drive is applied to the input gear 1, causing the opinion 2 to rotate and move around the rack 6. As the pinion moves along one of the parallel tracks of the rack 6, the housing 5 is caused to move longitudinally in on...