Push-button tuner
AssigneeNihon Technical Kabushiki Kaisha
InventorTamaki Ohashi
Life of this patent
Estimating the term…
Abstract
Disclosed is a push-button tuner having a plurality of push-buttons which are preset so as to tune in to preset frequencies of broadcasting stations, in which an actuator plate for setting the positions of variable tuning elements by depressing the push-buttons is divided into a plurality of actuator plate components and the variable tuning elements are allotted to the actuator plate components, the push-buttons being grouped corresponding to the actuator plate components, thereby reducing the actuator plate in size as well as in weight so that it is possible to tune in to the frequency of a desired broadcasting station with a light pressing force.
Claims9
A push-button tuner comprising a support, a tuning means mounted on said support in a manner so that said tuning means is movable to positions corresponding to tuned frequencies for producing the tuned frequencies, and a plurality of presettable tuning mechanisms for adjusting said tuning means to move selectively to positions respectively corresponding to specific frequencies, in which each of said tuning mechanisms comprises:
- a rotatable operation member movable between a front non-actuation position and a rear actuation position, said operation member being normally urged to said front non-actuation position, said operation member having a drive rotary body and a push-button provided at an end of said operation member, said push-button being used also as a rotating knob;
- a rotatable tuning member having a driven rotary body for selectively engaging with said drive rotary body to rotate together with said drive rotary body, said rotatable tuning member being supported by said support in a manner so that said rotatable tuning member is normally urged to said front non-actuation position while it is movable between said front non-actuation position and said rear actuation position, said rotatable tuning member having a longitudinally extending threaded portion at a part of the surface thereof and a tuning piece engaged with said threaded portion, said tuning piece being movable in the frontward/rearward direction in response to the rotation of said tuning member;
- said tuning means including a plurality of actuator plates engaging with said tuning piece of said tuning member in said rear actuation position to adjust said tuning means, each of said actuator plates cooperating with preset number of said tuning mechanisms, each of said actuator plates being provided with a variable tuning element;
- and
- in which said push-button tuner further comprises a lock member for holding any one of said tuning members so as to permit the transmission of rotation between said drive rotary body and said driven rotary body when said one tuning member is located in said rear actuation position and for releasing said one tuning member held in said rear actuation position when another tuning member is disposed in said rear actuation position.
Dependencies are inferred from the claim text.