Flat tuner

A pushbutton tuner comprising

• a tuner frame having a thickness dimension measured in a first plane and a width dimension measured in a second plane perpendicular to the first plane,
• tuning means mounted to the frame movable to a plurality of positions representative of desired broadcast frequencies, and
• a plurality of pushbutton assemblies mounted in the frame for in and out movement and each one of which carries a presettable memory cam means for recalling a memorized broadcast frequency when the one pushbutton assembly is pushed inwardly, upon actuation of a pushbutton assembly the tuning means being driven to the position corresponding to the memorized frequency of the cam carried by the actuated pushbutton
• wherein the improvement comprises
• slide bar means having a relatively thin dimension measured in a plane parallel to the first plane and mounted in the frame in a plane parallel to the second plane and slidable transverse the path of movement of the pushbutton assemblies for positioning the tuning means in response to driving actuation by any one of the memory cams,
• a plurality of shaped notches in the slide bar aligned with the pushbutton assemblies and adapted for receiving the memory cams,
• inward movement of a memory cam within its aligned notch driving the slide bar sideways until the cam is bottomed out in the notch, the slide bar and tuning means being thereby moved to the position corresponding to the memorized frequency of the actuated cam,
• manual tuning control means including clutch means,
• a crown gear having a relatively thin dimension measured in a plane parallel to the first plane and rotatably mounted in the frame about an axis perpendicular to the second plane for driving the slide bar means in response to operation of the manual tuning control means, and
• means for declutching the manual tuning control means when driving the slide bar with one of the pushbutton assemblies to recall a memorized frequency.

A pushbutton tuner having

• a tuner frame,
• tuning means mounted to the frame movable to a plurality of positions representative of desired broadcast frequencies,
• a plurality of pushbutton assemblies mounted in the frame for in and out movement and each one of which carries a presettable memory cam means for recalling a memorized broadcast frequency when the one pushbutton assembly is pushed inwardly,
• means for driving the tuning means in response to actuation by any one of the pushbutton assemblies to the position corresponding to the memorized frequency of the cam carried by the actuated assembly,
• manual tuning control means,
• clutch means for releasably coupling operation of the manual tuning control means to the drive means,
• means for declutching the manual tuning control means when recalling a memorized frequency by operating the drive means from the pushbutton assemblies, and
• means for disabling the declutch means when setting a predetermined frequency into the memory cam means
• wherein the improvement comprises
• the declutching and disabling means having
• a declutch bar rotatably mounted in the frame for movement about an axis transverse the paths of movement of the pushbutton assemblies for declutching and also slideably mounted for movement along said axis between a first position with the clutch engaged and a second position without declutching,
• means biasing the declutch bar into the first position,
• a declutch actuator carried by the pushbutton assembly and pivotable between
• a first position aligned to engage the declutch bar and declutch the manual tuning control when recalling a memorized frequency and
• a second position clear of the declutch bar to disable the declutch means when setting a predetermined frequency into the memory cam means while momentarily displacing the declutch bar along its axis to the second position against the action of the biasing means.

A pushbutton tuner having

• a tuner frame having a thickness dimension measured in a first plane and a width dimension measured in a second plane perpendicular to the first plane,
• tuning means mounted to the frame movable to a plurality of positions representative of desired broadcast frequencies,
• a plurality of pushbutton assemblies mounted in the frame for in and out movement and each one of which carries a presettable memory cam means for recalling a memorized broadcast frequency when the one pushbutton assembly is pushed inwardly,
• means for driving the tuning means in response to actuation by any one of the pushbutton assemblies to the position corresponding to the memorized frequency of the cam carried by the actuated assembly,
• manual tuning control means,
• clutch means for releasably coupling operation of the manual tuning control means to the drive means,
• means for declutching the manual tuning control means when recalling a memorized frequency by operating the drive means from the pushbutton assemblies, and
• means for disabling the declutch means when setting a predetermined frequency into the memory cam means
• wherein the improvement comprises
• the drive means including a slide bar mounted in the frame in a plane parallel to the second plane and slidable transverse the path of movement of the pushbutton assemblies for positioning the tuning means,
• the manual tuning control means includes a crown gear rotatably mounted about an axis perpendicular to the second plane for driving the slide bar,
• the pushbutton assemblies include slides carrying the presettable memory cam means and the declutch disabling means, and
• the overall dimension of the tuner measured in the first plane presents a relatively thin profile when assembled in the range of 0.62 inches.

A treadlebarless pushbutton tuner comprising

• a tuner frame having a thickness dimension measured in a first plane and a width dimension measured in a second plane perpendicular to the first plane
• tuning means mounted to the frame movable to a plurality of positions representative of desired broadcast frequencies,
• a plurality of pushbutton assemblies mounted in the frame for in and out movement and each one of which carries a presettable memory cam means for recalling a memorized broadcast frequency when the one pushbutton assembly is pushed inwardly, upon actuation of a pushbutton assembly the tuning means being driven to the position corresponding to the memorized frequency of the cam carried by the actuated pushbutton,
• manual tuning control means including clutch means, and
• declutching means,
• wherein the improvement comprises
• slide bar means mounted in the frame for movement transverse the path of movement of the pushbutton assemblies for positioning the tuning means in response to driving actuation by any one of the memory cams,
• a crown gear having a relatively thin dimension measured in a plane parallel to the first plane and rotatably mounted in the frame about an axis perpendicular to the second plane for driving the slide bar means in response to operation of the manual tuning control means, and
• the declutching means declutches the manual tuning control means when driving the slide bar with one of the pushbutton assemblies to recall a memorized frequency.