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:
Oct. 20, 1987
Filed:
May. 09, 1986
Teiichi Miura, Furukawa, JP;
Alps Electric Co., Ltd., , JP;
Abstract
A mechanism for inhibiting simultaneous locking of switches in a plurality of rows in a multi-row switch device has a member for inhibiting simultaneous locking of switches in two rows. The member has a plurality of receiving portions projectingly formed in a spaced relationship by a fixed distance and an alternate relationship on both edges thereof and located corresponding to the keys in the two rows. When one of the switches in one row is operated, the member is moved to a position in which the receiving portions thereof will inhibit the corresponding keys in the other row from being depressed. The switch device also includes bar-like locking cams extending between every two adjacent switches in each row for preventing simultaneous locking of two switches in the same row.