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US 4,227,238 AGranted
Mounting and electrical connection means for operation unit for electric devices
AssigneeNippon Gakki Seizo Kabushiki Kaisha
InventorMasashi Saito
Life of this patent
Estimating the term…
Abstract
A number of electric operation components such as tone volume controls of an electric musical instrument are collectively carried by a common chassis preferably manufactured by press stamping which is accompanied by one or more printed circuit base blocks and easily incorporated in a front panel of an electric device. Assembly of the front panel construction on the electric device is remarkably simplified with enhanced precision in said position of the electric operation components on the front panel and reduced use of electric lead wires.
Claims22
An operation unit for electric devices comprising
- a plurality of electric operation components each having at least one electric terminal,
- a chassis provided with a plurality of mounting apertures receptive of said electric operation components,
- at least one printed circuit base block comprised of a first plate portion having at least a printed circuit and a second plate portion bent rearwards from said first plate portion, said first plate portion facing said chassis and having at least one through hole receptive of said electric terminal of said electric operation component and in communication with an electrically conductive layer forming said printed circuit, and said second plate portion being provided with at least one printed circuit,
- said first and second plate portions having respective side fringes, means coupling said chassis to said printed circuit base block including a holder firmly but separably in engagement with said side fringes of said first and second plate portions, and
- means for mounting said chassis to a panel of an electric device.
2 more elements
Dependencies are inferred from the claim text.