The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 1983
Filed:
Jun. 18, 1981
Toshiaki Sugiura, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A printer employing a daisy-type wheel. On a hub of the type wheel a pin is slidably disposed and is backwardly biased by a spring to protrude from the rear surface of the hub. In a central opening of the hub a hair pin spring having a pair of arms is disposed. The type wheel is mounted on a drive shaft of a motor through a coupling element. The coupling element is provided with a projection which is fitted into the opening of the hub and engaged with the arms of the hair pin spring by a snap action to latch the type wheel to the drive shaft in the axial direction. In the axially latched state the pin protrudes from the front surface of the hub, resisting the resilient force of the spring, by the coupling element. When the coupling element is rotated more than one turn the protruding pin is engaged with a stationary projection to prevent the type wheel from rotating, with the result that the pin is aligned with a notch formed in the coupling element and is fitted into the same for latching the type wheel to the drive shaft in the rotational direction.