JPS60155225U - Electronic tuner selection components including multi-row variable resistors - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1A is a top view of the tuner unit, FIG. 1B is a side view, C is a front view, and FIG. 1C is a back view. FIG. 2 is an enlarged top view of the tuner unit including a partially cut-out portion of the case for explanation. Figure 3A is an enlarged top view of the tuner unit board;
B? , is an enlarged side sectional view of the tuner unit;
The BB cross section of FIG. 1A is shown in an enlarged manner. FIG. 4 is an enlarged perspective view of the mold case 1 seen from a part of the opening. Figure 5A is an enlarged top view of the adjustment knob of the variable resistor;
Figure B is an enlarged side view including a partial sectional view, and Figure 5C is an enlarged bottom view of the same. 6'A is an enlarged top view of the variable resistor rotor 6, FIG. 6B is an enlarged side view including a partial sectional view of the same, and FIG. 6C is an enlarged bottom view of the variable resistor rotor 6. 7th
FIG. 7A is an enlarged top view of the resistor slider 7, and FIG. 7B is an enlarged side view including a sectional view of the same portion. 8A is an enlarged top view of the variable resistor central terminal 8, FIG. 8B is an enlarged side view, and FIG. 8C is an enlarged front view. Figure 9A shows band switch knob 9
B is an enlarged side view with a partial cutaway, and C is an enlarged bottom view. FIG. 10A is an enlarged top view of the band switch slider 10, and FIG. 10B is an enlarged side view thereof. No. 11
Figure A is an enlarged top view of the band switch
Figure B is an enlarged side sectional view of the same. 1: Case, IA: Rotor shaft hole, 1B: Switch shaft groove, 1C: Arc-shaped hole, 1E: Elastic protrusion, 1F, IF': Bearing groove, 1ji, IJ' guide groove, 1G = Partition plate, 1H:
Square hole, IK: Adjustment knob adjustment hole, IL, IL': Fixed protrusion, 1M spacer protrusion, IN: Protrusion, 1P: Groove, 2
: Substrate, 2C: Rotor shaft hole, 2D; Band switch shaft hole, 2E. 2E': Engagement hole, 5: Variable resistor adjustment shaft, 5A: Adjustment disc part, 5B: Thread part, 5E, 5E': Adjustment hole, 5F,
5F': Support shaft, 6: Variable resistor rotor, 6A: Display shaft, 6A□: Rotation position indicator, 6B: Peripheral gear, 6B: Small diameter shaft, 6 Snow H~d°7'': J-l :,Q'
ij;HH'/:. center terminal, 8C: eyelet, 9: band switch, knob, 9B: small diameter support shaft, 9C: operation column, 9D = small diameter shaft, 9E: cam recess, 9E two body parts, 9G: locking groove, 1
0: Band switch slider, 10D: Center hole, 10G:
Tongue piece, 11: band switch washer, 12: band switch center end - potato, 12D: eyelet, 21: resistor,
22: common electrode, 25, 26, 27: common electric path.

Claims (2)

[Scope of utility model registration request] (1) An electronic tuner in which a multi-row rotary variable resistor and a rotary band switch are provided on an insulating substrate 2 and housed in a case 1, and the resistance value of the variable resistor is adjusted using an adjustment knob with a deceleration and rotation mechanism. In the channel selection device, a resistor slider 7 that slides on a plurality of horseshoe-shaped variable resistance resistors 21 provided on an insulating substrate 2 is fixed to an elastic insulator in a ronitor hole IA on the upper surface of a case 1. The rotor 6 is rotatably secured with its upper display shaft 6A protruding above the case, and an outer peripheral gear portion 6B is provided on the outer periphery of the rotor 6. One extension of the variable resistor adjustment shaft 5, which has a screw portion 5B in the center that engages with the variable resistor, has an adjustment knob disk portion 5A that is manually rotated during adjustment, and a small diameter support shaft portion 5F at the tip thereof. , and the other extension part is provided with a supporting shaft part 5F and a small-diameter support part 5F' on the same axis, which fits into the adjustment knob disc part 5A of the adjustment shaft and adjusts the diameter of the disc part 5A. The rectangular square hole IH on the top surface of the case 1 whose outer edge protrudes to the outside of the case 1 has an adjustment knob 5 attached in the axial direction by contacting the side surface of the adjustment knob disc part 5A on both sides or one side of the central part of the side surface of the square hole. An electronic tuner tuning component including a multi-row variable resistor in which a variable resistor insulation adjustment shaft 5 is rotatably fixed to the inner surface of a case 1, and a variable resistor insulation adjustment shaft 5 is rotatably fixed to the inner surface of a case 1. (2) A groove IP that gives elasticity to the protrusion IN is provided next to the protrusion IN of the rectangular hole IH of the case 1, and the width D- including the protrusion IN of the rectangular hole IH is An electronic tuner tuning component comprising a multi-row variable resistor according to claim 1, which has a width d smaller than the width d of the disc portion 5A of the adjustment shaft 5 that engages with and rotates in sliding contact with the adjusting shaft 5.