JPS5919449Y2 - push button tuner - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a method for reading a channel by suppressing a channel selection member that includes a frequency regulation plate, a deterrent piece that suppresses the plate, and an actuation piece that operates the suppressor piece. Regarding a push-button tuner that achieves tuning by abutting the regulation plate against a movable member to move the movable member and varying a variable tuning element corresponding to the amount of displacement of the movable member, the present invention particularly relates to a push-button tuner in which the tuning member is moved. This prevents the regulation plate from colliding with the movable member with more force than necessary and impairing the accuracy of channel selection when pressed.An example of this is detailed below with reference to the drawings. 1st arm 1 and 2nd arm 2
The first arm 1 includes a fan-shaped frequency regulating plate 4 which rotates about a pivot 3, a restraining piece 6 which is rotatably supported on a shaft 5 and which inhibits the regulating plate 4 by its tilting action. The second arm 2 is provided with a push button at its end. A push-button tuner comprising a base frame C equipped with a transfer crank B interlocking with a variable tuning element, and a base frame C having a tuning member A fixed thereto, slidably perpendicular to the transfer crank B. It shows the case,
In the push button type tuner having such a configuration, the first embodiment includes a mounting piece 1 in which a window hole 10 is provided in the center of the push button 9.
1 is attached to the tip thereof, as shown in FIG. a protrusion 14 provided on the mounting piece 11 and a protrusion 1 provided on the rear edge of the window hole 10 of the mounting piece 11;
5, a resilient spring 16 is interposed in a loaded state.

In the figure, reference numeral 17 denotes a restoring spring for the channel selection member A, and the elastic spring 16 has a sufficiently stronger elasticity than the restoring spring 17.

However, in this lever configuration, when the push button 9 is pressed from the state shown in FIG. 1 in which the frequency regulating plate 4 is restrained by the restraining piece 6, the second arm 2 moves forward against the restoring spring 17.

In this case, since the elastic spring 16 has a stronger elasticity than the restoring spring 17, the spring 16 is not compressed, and therefore, the second arm
The frequency regulating plate 4 collides with the parallel rod of the transfer crank B, and the crank B moves forward together with the frequency regulating plate 4.
The variable tuning element is thereby varied and tuning is achieved.

By the way, in normal use, the push button is pressed with great force.

Therefore, the force of collision between the frequency regulating plate 4 and the transfer crank B during channel selection also increases, and this causes some deflection of the parallel rods of the transfer crank B, which causes a loss in the accuracy of channel selection.

However, according to the first embodiment of the present application, the mounting piece 11 attached to the push button 9 and the operating piece 8 are slidably connected, and the elastic spring 16 is interposed between them. Since the excessive collision force acting between the plate 4 and the transfer crank B is absorbed by the elastic spring 16, it is possible to avoid the bending of the parallel rod of the transfer crank B.

FIG. 3 shows a single reading 18, on which are a frequency regulating plate 21 rotatably pivoted at one end 19 and a memory pin 20 at the other end, and a frequency regulating plate 22 pivotably pivoted at the other end. an actuating member having a restraining piece 23 that restrains the regulation plate 21 by its tilting action; and a ridge portion 24 that slides along the length direction of the reading 18 and imparts a tilting action to the restraining piece 23; 25, and a push button 26 is connected to the operating piece 25. The reading 18 of the tuning member A' is connected to a lid frame C' having a transverse movement plate B' interlocking with a variable tuning element. The push button 26 is slid into a fitting hole 28 provided in a support rod 27 that is slidably perpendicular to the horizontal movement plate B' and is provided parallel to the front surface of the lid frame C'. This shows the case of a push-button tuner that can be freely fitted and closed. In the push-button tuner with such a configuration, the second embodiment has a window hole 29 provided in the center of the push button 26. Attach the mounting piece 30 and insert the pin 31 at its tip.
A connecting piece 34 connected by a pivot 33 is connected to the operating piece 30 through engagement with the longitudinal hole 32, and a projecting piece 35 provided at the rear end of this connecting piece 34 and the mounting piece 3 are connected to each other.
A resilient spring 37 is interposed in a loaded state between a protrusion 36 provided on the rear edge of the window hole 29 and a protrusion 36 provided at the rear edge of the window hole 29.

In the figure, reference numeral 38 denotes a restoring spring of reading 18, and the elastic spring 37 has a sufficiently stronger elasticity than the restoring spring 38.

However, in this embodiment, when the push button 26 of the channel selection member A' is pressed, which is in the state on the right side of FIG. has a sufficiently strong elasticity, so that the readout 18 moves forward against the restoring spring 38 without being compressed, and the memory pin 20 of the frequency regulation plate 21 moves into the V-shaped position provided on the transverse movement plate B'. Cam part b'
In this process, the lateral movement plate B' moves laterally corresponding to the rotation angle of the frequency regulating plate 21, and this lateral movement displacement The variable tuning element is varied depending on the amount, and the tuning is closely related.

Incidentally, in the above, when the pressing force of the push button 26 is large, the abutting force between the memory pin 20 and the apex of the cam part b' becomes large, and this abutting force causes the regulating plate 21 to have a rotational force about the pivoting part 19 as a fulcrum. (a rotational force in the counterclockwise direction in FIG. 3) is generated, which causes an unnecessary lateral force to be applied to the lateral moving plate B', which causes a loss in tuning accuracy.

However, according to the second embodiment, the mounting piece 30 attached to the push button 26 and the actuation piece 25 are slidably connected via the connecting piece 34, and the elastic spring 3 is inserted between them.
7, the memory pin 2 of the frequency regulation plate 21
0 and the apex of the cam portion b' provided on the lateral movement plate B' is absorbed by the elastic spring 37, so that unnecessary lateral displacement acts on the lateral movement plate B'. can be avoided.

As described above, according to the present application, the excessive collision force acting between the frequency regulating plate and the movable member of the transfer crank or the transverse plate is absorbed by the elastic spring, thereby avoiding channel selection errors. Not only can a tuner with high local accuracy be provided, but also a mounting piece is provided on the push button, and the operating part is slidably connected to this mounting piece directly or via a connecting piece, and there is a Since the structure includes an intervening elastic spring, it is possible to connect the actuating member to the push button and interpose the elastic spring very easily, which has the advantage of high workability.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a partially omitted and partially cutaway plan view, FIG. 2 is a plan view showing the state of connection between the mounting piece and the operating part, FIG. 3 is a plan view with some parts omitted and some parts cut away. In the figure, 1.2.18 are readings, 4 and 21 are frequency regulation plates,
6.23 is a restraining piece, 8 and 25 are actuating parts, 9.26 is a push button, A and A' are selection members, B is a transfer crank, B' is a transverse movement plate, C9C' is a cover frame, 11. 30 is a mounting piece, 12.3
1 is a pin, 13.32 is a vertical hole, and 16.37 is an elastic spring.

Claims (1)

[Scope of utility model registration request] During reading, a channel selection member including a frequency regulation plate, a deterrent piece for suppressing the frequency regulation plate, and an actuating member for activating the deterrence piece is pressed, thereby causing the regulation plate to collide with the movable member. In the push button type tuner, the push button is provided with a mounting piece, and the mounting piece is provided with an actuating part. A structure in which pieces are slidably connected directly or via a connecting piece, and an elastic spring is interposed between them.