Apparatus for recording and/or reading information
AssigneeDigital Equipment Corporation
InventorErnst C. G. Lindelow
Life of this patent
Estimating the term…
Abstract
A carriage is displaceable parallel to a record carrier and supports a head displaceable in a direction essentially perpendicular to the record carrier. In order to obtain a mounting free of play while maintaining parallelism of the head during its movement and at the same time reduce the risk of damage to the head in the event of a collision, the head is supported by at least one leaf spring pair. Each leaf spring pair consists of a front and a rear leaf spring attached between the carriage and the head in attachment points. The connecting lines between the attachment points of the leaf springs substantially form a parallelogram. The apparatus is used as a printer for printing information on record carriers of paper type.
Claims6
An apparatus for reading or recording information on a record carrier comprising:
- means for receiving said record carrier;
- a record read or recording head;
- a carriage carrying said head;
- means resiliently supporting the head on the carriage for displacement in a direction substantially perpendicular to the received record carrier, said means resiliently supporting including front and rear leaf spring head supports fixed to the carriage and to the head at attachment points spaced so that connecting lines between the attachment points essentially form a parallelogram, said leaf spring head supports being oriented such that the major surfaces of said leaf spring head supports are substantially parallel to said record carrier;
- a motor driven cam;
- and
- a cam linkage in cam following relationship with the cam, such linkage including a link arm having one end connected to the head beyond the attachment points of the leaf springs and a second end pivotally connected to a fixed point and engaged between said ends by the cam during rotation of the cam to displace the head in a direction substantially perpendicular to the received record carrier.
Dependencies are inferred from the claim text.