Counterbalanced bidirectional shuttle drive
US4239403A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1979 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Jan 30, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J25/006
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A counterbalanced bidirectional drive for a hammer bank shuttle assembly within a line printer utilizes a band formed into an endless loop extending around and between an opposite pair of rotatable pulleys on opposite sides of the pulleys. A hammer bank-carrying shuttle assembly is coupled to a portion of the band between the pulleys on one side of the pulleys and is counterbalanced by an elongated bar of similar mass coupled to a portion of the band between the pulleys on the opposite side of the pulleys from the shuttle assembly. A DC motor coupled to one of the pulleys is alternately energized in opposite senses so as to bidirectionally drive the shuttle assembly along a linear path between opposite limits defined by resilient members impacted by an element mounted on the counterbalancing bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.