JPS5926664Y2 - Tuning components in push-button tuners - Google Patents

Description

[Detailed description of the invention] The present application relates to a tuning member for the purpose of reducing the thickness of a push-button tuner.The embodiment thereof will be described in detail with reference to the drawings below. 1 is a plate-shaped arm; Thin mounting piece 2
is extended, and a push button 3 is slidably attached to this mounting piece 2.

Reference numeral 4 denotes a disc-shaped regulation plate which is supported on the surface of the armrest 1 so as to rotate around the center by fitting into a triangular hole 5 and a pivot 6, and its periphery is inclined upward. , preferably conically shaped axle pins 7,7' project from two diametrical locations on its upper surface.

Reference numerals 8 and 8' denote a pair of clamping levers arranged on the left and right positions of the regulation plate 4, whose peripheral edges clamp from both sides by a tilting action, and whose inner edges are tilted downward so as to fit with the peripheral edges of the regulation plate 4 at the front. A front half part 10 having a curved surface 9 extending from the front half part 10 in a substantially straight line in the push button direction and floating above the surface of the arm arm 1 via a step part 11 in the middle thereof, and a rear end part. The tip of the pair of clamping levers 8, 8' is pivotally attached to the armrest 1 via a pivot shaft 14 so as to be tiltable.

15 has its rear end fixed to the push button 3, and is located between the rear parts 13 and 13 of the l pair of clamping levers 8 and 8'.
An actuating member that slides on the surface of the shaft piece 1 provided at its tip.
6 is engaged with an elongated hole 17 bored in the cross arm 1, and acts on the bulges 12 of the pair of clamping levers 8, 8' in the appropriate position to press them inward. Holding levers 8, 8'
A pressing portion 15' having a box-shaped cross section is provided to bias the tilting action.

Reference numeral 18 denotes a pressing piece that is interposed within the pair of clamping levers 8 and 8' and presses them outward; 19 is a container frame that slidably supports the arm 1; and 20 is a direction perpendicular to the arm 1. This is a slide plate that moves laterally and is connected to a manual adjustment mechanism and a variable tuning element (not shown), and has a mountain-shaped ridge 20' formed on its lower surface so as to face the regulation plate 4.

21 is a stopper.

As shown in FIG. 1, when the push button 3 is pressed from the state where the regulation plate 4 is not clamped, the arm 1 moves forward against the restoring spring (not shown), and the shaft pin 7.7' is raised. Hill part 20'
When it comes into contact with the opposing inclined surfaces of the arms 1, the forward movement of the arms 1 is blocked, and the regulating plate 4 rotates corresponding to the amount of lateral displacement (station tuning point) set by the slide plate 20. The regulation plate 4 memorizes the station tuning point according to the rotation angle.

When the push button 3 is further pressed from this state, the clamping levers 8 and 8' are tilted inwardly by the pressing portions 15', thereby clamping and holding the regulating plate 4 from both sides thereof.

Then, when the push button 3 is released, the arm arm 1 is moved back with the clamping lever 8.8' clamping and holding the regulating plate 4 by the restoring spring.

Then, by pressing the push button 3, the shaft pin 7.7'
Due to the action of the ridge portion 20' and the ridge portion 20', the slide plate 20 moves laterally to achieve channel selection.

Figure 5 shows a regulation plate 4 in order to shorten the width of the channel selection member.
This is an embodiment diagram in which the lower part 4b is divided into an upper part 4a and a lower part 4b having a smaller diameter than the upper part 4a, and the lower part 4b is held by a pair of holding levers 8 and 8'.

As described above, in the present application, a disc-shaped regulating plate and a pair of clamping levers are arranged on the surface of an arm arm, and the clamping levers are tilted on a horizontal plane to clamp and hold the regulating plate. This configuration allows a flat tuning member to be obtained, which is effective in reducing the thickness of the push-button tuner.

In particular, according to the present application, the circumferential edge of the regulating plate is inclined upward, and the inner edge of the clamping lever, which faces the circumferential edge of the regulating plate, is inclined downward. A component of force, that is, a molecule that suppresses the regulating plate on the arm surface, acts, and as a result, the restraining state of the regulating plate against the arm becomes more reliable and strong, and external vibrations and the axis pin of the regulating plate are applied to the ridge of the slide plate. This has the advantage that there is no risk of displacement due to the collision force when colliding with the other channels, and that it can also improve the accuracy of channel selection.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a plan view, FIG. 2 is a central vertical side view, FIG. 3 is an enlarged sectional view taken along the line ■-■ in FIG. 1, and FIG. 4 is a diagram showing FIG. 1. FIG. 5 is an enlarged cross-sectional view taken along line II--II of FIG. 5, which is another embodiment diagram corresponding to FIG. In the figure, 1 is an arm arm, 3 is a push button, 4 is a regulation plate, 7 and 7' are shaft pins, 8 and 8' are clamping levers, 9 is a curved surface, 12 is a bulge, 14 is a pivot, and 15 is an operation The piece 15' is a pressing part.

Claims (2)

[Scope of utility model registration request] (1) A disc-shaped regulation plate that rotates around the center with a protruding shaft pin on the arm plate, and a pair of tilting plates whose one end is pivoted so as to sandwich the periphery of the regulation plate from both sides. a clamping lever; and an actuating member that slides when a push button is operated and biases the pair of clamping levers for a tilting action in a direction in which the regulation plate is clamped, the peripheral edge of the regulation plate being tilted upward. Also, a tuning member in a push-button tuner, wherein the inner edge of the clamping lever, which faces the circumferential edge of the regulation plate, is sloped downward. (2) 1 so that it is located on the left and right of the rotation center of the regulation plate.
A channel selection member in a push-button tuner according to claim 1, which is formed by protruding a pair of shaft pins.