JPS5825615Y2 - Push button tuner - Google Patents

Description

[Detailed description of the invention] The present invention relates to a push button tuner, in which a protruding shaft and a V-shaped recess are provided on the cam plate and the regulating plate to regulate their relative positions, respectively, and the sliding range of the cam plate and the rotation angle of the regulating element are controlled. It is an object of the present invention to provide a push button tuner which can increase the size of each button, improve tuning accuracy, reduce the number of parts, and simplify configuration and assembly.

A conventional push button tuner has a V-shaped cam surface (on a cam plate) on which a regulator is movably provided on the operating rod and is slidable in the left and right directions as the operating rod is slid back and forth.
A device has been proposed that performs storage and reading by contacting the V-shaped pitch (one pitch of the V-shaped is P), but according to this, for example, the right cam surface of the V-shaped (position of dimension 11 from the center of the V-shaped) Assuming that the specifier that has been in contact and memorized comes into contact with the opposite left cam surface (position 12 from the center of the V-shape) at the time of readout, the cam plate will slide by a distance of 11 + 12 minutes - at the time of readout. Therefore, 11+12 is smaller than the pitch dimension of the negative cam surface P/2 (11+12〈P/2)
Must.

(If it becomes 11+12>P/2, the specifier will come off the corresponding cam surface during readout.) Therefore, the total sliding amount of the cam plate is limited to a relatively small dimension of within P/2, and all stations of the tuner are There was a drawback that if it was made compatible, the accuracy of channel selection would decrease.

Furthermore, in the above conventional example, the control rod and the restraining member that restrains the regulator are separate members, and the push button and the cam member that operates the restraining member are also separate members, resulting in a large number of parts as a whole, and the structure is Another drawback is that assembly is troublesome.

The present invention eliminates the above-mentioned drawbacks, and embodiments thereof will be described below with reference to the drawings.

Figures 1 and 2 are each one of the push button tuners of the present invention.
FIG. 2 is a perspective view and a plan view of main parts of the embodiment.

In the figure, 1 is the push button tuner case, with a bottom plate 2, a front plate 3,
The rear plate 4 and both side plates (not shown) are integrally formed.

5 is a cam plate, which is marked with arrow A in the figure on both sides of case 1.

It is held so as to be slidable in the B direction, and is slid as appropriate by rotating a predetermined tuning shaft (not shown) to move a core (not shown) interlocked with this to perform tuning tuning.

The cam plate 5 has pins 6 planted on its lower surface at predetermined pitches P in the left-right direction, and when the cam plate 5 is in the neutral position in the left-right direction, the lower end of each pin 6 is defined on the center line of the push button rod 7, which will be described later. It is inserted into the cam hole 13 of the child 9.

7 is a plurality of push button rods, each of which has an operating rod 8, a regulator 9, and a push button 1.
Consists of 0.

The operating rod 8 is made of a metal plate, and as shown in Figs. A tip portion 8C is formed on the rear side.

The main body 11 has a stopper portion 11a and an engaging recess 11b.

Note that the restraining portion 12 is elastically rotatable in the direction of the arrow in FIG.

As shown in FIG. 2, the regulator 9 is made by punching a metal plate into a substantially triangular shape, and has a circular boss portion 9a integrally on the lower surface and a V-shaped cam hole 13 formed on substantially the entire surface. Ru.

The cam hole 13 has a pair of cam surfaces 13a mutually forming a V-shape.
, 13 b, relief portions 13 d of the V-shaped vertices 13C11 pairs,
13e.

Note that the front portion of the circular boss portion 9a projects below the cam hole 13.

The regulator 9 is movably attached to the operating rod 8 by fitting the boss portion 9a into the pivot portion 8b and using a predetermined pin and a stopper (both not shown) in a plan view.

The push button 10 has a flat box shape, is fitted into the front end of the main body 11 through a hole 10a, and is positioned so that the hole end 10b abuts the protrusion 12a of the restraining part 12 and the pin 14 engages with the recess 11b. It is being

The push button rod 7 having the above configuration is the first. As shown in Fig. 2, the main body part 11 and the tip part 8C are fitted into the front plate 3 and the rear plate 4, respectively, and are slidable in the directions of arrows C and D in the figure (directions orthogonal to the directions of arrows A and B). However, normally, the stopper part 11a is urged in the direction of the arrow by the spring 15 and comes into contact with the front plate 3, and the pin 6 (of the cam plate 5) is inserted into the cam hole 13 of the regulator 9 as described above. (This pin 6□ will be explained below) The lower end is inserted.

The push button rod 7 is generally composed of only three members, the operating rod 8, the regulator 9, and the push button 10, and is extremely simple to construct and assemble.

Next, the operation of the push button tuner having the above configuration will be explained.

As the tuning shaft is operated to select a desired station, the cam plate 5 moves from the neutral position shown in FIGS. 1 and 2 in the direction of arrow A as shown in FIG. , <P/2)
Suppose it slides.

At this time, the pin 6□ of the cam plate 5 also slides in the same direction by a distance d1, and either does not come into contact with the left cam surface 13b of the regulator 9 or slightly contacts it, causing the regulator 13 to rotate slightly clockwise.

To store the desired station, push button 10 is operated in the direction of the arrow in FIG. 2 to slide it in the direction of arrow C against spring 15.

Then, the left cam surface 13b of the specifier 9 comes into contact with the pin 6□, and then the specifier 9 is rotated clockwise by the regulation of the pin 6□, and the pin 6□ is relatively guided by the cam surface 13b and rotates to the pin 6□. As shown in FIG. 3, the V-shaped apex 13C is reached.

However, at this time, the angle θ of the cam surface 13b in FIG. 3 with respect to the directions of arrows A and B must be greater than 90'.

(θ≧゛90°) If the pin 6 is in advance in contact with the cam surface 13b, the regulator 9 starts rotating immediately when the push button rod 7 is pressed.

Next, when trying to push the push button rod 7 further, the operating rod 8 could not slide due to the restriction of the pin 6□ via the regulator 9, and the push button 10
only is pushed in.

As a result, the main body part 11 and the restraining part 12 are relatively fitted into the inside of the hole 10a as shown in FIG. It rotates elastically in the counterclockwise direction in the figure.

The push button 10 stops when the main body 11 comes into contact with the bottom surface of the hole 10a, and the regulator 9 is clamped by the above rotation of the restraining part 12.

Next, when the pushing force of the push button rod 7 is released, the push button rod 7 moves to the third position.
While maintaining the configuration shown in the figure, the spring 15 slides back in the direction of the arrow, and the stopper part 11a comes into contact with the front plate 3 and stops, reaching the position shown in FIG. 4.

The memory operation is thus completed. At this time, the pin 6□ reaches the left relief portion 13e while being relatively separated from the cam surface 13b under the condition of θ≧90°.

Further, during the above operation, when the regulator 9 is rotated, the cam plate 5 is connected to the load of the synchronizing operation section, so that it does not slide unnecessarily in the directions of arrows A and B.

Next, the reading selection of the desired station will be explained.At this time, as other stations are selected, the cam plate 5 is slid from the position shown in FIG. 3 in the direction of arrow B, and the pin is moved as shown in FIG. It is assumed that 6□ moves to a position 82 minutes (however, d2<P/2) to the right of the neutral position and is located within the right relief portion 13d of the cam hole 13.

Here, when the push button rod 7 in FIG. 4 is pushed in the direction of arrow C, the regulator 9 moves from the solid line position to the two-dot chain line position, and its right cam surface 13a abuts the pin 6□.

Next, when the push button rod 7 is pushed in, the cam plate 5 is disconnected from the synchronizing operation section by a predetermined clutch mechanism, and the arrow A is pressed.
The structure is such that it can slide in the direction B, and the regulator 9 is clamped.

Therefore, the pin 6 (Y) is guided by the right cam surface 13a and reaches the V-shaped apex 13C, and the cam plate 5 is relatively slid in the direction of arrow A. Eventually, the cam plate 5 slides by a distance of d1+d2 and stops. The configuration shown in Figure 3 is reproduced.

In this way, the readout and selection of the desired station is completed.

As can be understood from the above configuration and operation, the maximum values of dimensions d1 (d2) in FIGS. It is the value obtained by subtracting the radius of plus the dimension.

Therefore, if the left and right width dimension of the regulator 9 is set to the maximum value P, and the thickness of the cam surface 13b (13a) and the diameter of the pin 6□ are made close to zero, ignoring the problem of strength, then the dimension d
1. The maximum values of d2 are each close to P/2.

Therefore, for example, the sliding dimension d of the cam plate 5 during the above reading
It is possible to make l + d2 close to pitch P (that is, d1 + d2 <P), and theoretically, by setting the slide dimension to a value slightly less than twice that of the conventional example and making all stations correspond to this, the tuning accuracy can be improved accordingly. It is something that can be used.

In addition, if you want to store a different station next time after the reading is completed,
It is sufficient to pull the push button 10 further in the direction of the arrow from the above state.

At this time, the operating rod 11 comes into contact with the front plate 3 and cannot slide, and only the push button 10 slides in the same direction, relative to the main body 1.
1 and the restraining part 12 move in the direction of ejection from the hole 10a, and as shown in FIG.
b, and the pin 14 returns to the engagement recess 11b.

As a result, the restraining portion 12 is elastically rotated back in the clockwise direction, and the regulator 9 is unclamped and enters the next memorized state in which it is freely rotatable.

In the above embodiment, a plurality of push button rods 7 are provided only on the lower side of one cam plate 5, but the present invention is not limited to this, and for example, pins 6 at pitches of 2P are provided above and below a plurality of push button rods 7 each having a pitch of P. A pair of cam plates 5 are provided parallel to each other and their pins 6 are shifted from each other by a pitch P, and the regulators 9 of the push button rod 7 are made to correspond alternately to the upper cam plate 5 and the lower cam plate 5 so as to be interlocked with each other. According to this, the specifier 9 of the adjacent push button rod 7
Interference during rotation is eliminated, and the sliding range of the cam plate 5 can be adjusted to a pitch P, for example, by making the regulator 9 large in shape.
This makes it possible to further improve the tuning accuracy of 9 degrees.

As another embodiment, contrary to the above case, a plurality of push button rods 7 are provided alternately above and below on one cam plate 5, and pins 6 are provided on the cam plate 5 alternately above and below at every pitch P. Sequential push button rod 7
In this case, the sliding range of the cam plate 5 may be made larger than the pitch P to further improve the tuning accuracy.

Further, the regulator 9 is not limited to the one having the cam hole 13 as described above, but may be any one having a pair of mutually V-shaped cam surfaces, such as the regulator 21 shown in FIG. A V-shaped protrusion 22 is provided along the V-shaped outer side of the triangular metal plate, and a V-shaped cam surface 22 a on the inner edge of the protrusion 22 ,
22b may be used to guide the pin 6 of the cam plate 5.

Note that the protruding portion 22 may be formed by a bending method using a press, or may be formed by a method such as a die-casting method or a sintering method.

As described above, according to the push button tuner of the present invention, the protruding shaft of the cam plate and the V-shaped apex of the V-shaped recess of the regulation plate pivotally supported by the operating rod (push button rod) mutually restrict each other to select a channel. For example, if multiple push button rods are installed at a pitch of P to a negative cam plate (the pitch of the protruding shafts of the cam plate is also P).
By setting the width of the ■-shaped maximum expansion part of the V-shaped recess close to the pitch P, the maximum value of the sliding width of the narrow protruding shaft during rotation of the V-shaped apex and the cam plate can be set close to the pitch P. All stations can be configured to correspond to this setting, improving the tuning accuracy. Also, one of the forked legs of the operating rod can also be used as a restraining member for the regulation plate, and the one leg and the push button can be set as follows. Since the cam parts that collide with each other are provided on each side, the push button rod is almost an operating rod.
It has only three components, the regulating plate and the push button, and has the advantage of reducing the number of parts and simplifying the configuration and assembly.

[Brief explanation of the drawing]

Figures 1 and 2 are each one of the push button tuners of the present invention.
A perspective view and a plan view of the main parts of the embodiment, FIGS. 3 and 4 are diagrams showing the first and second operating states of the push button tuner, respectively, and FIG. 5 is a diagram showing the regulator used in the push button tuner. FIG. 7 is a perspective view of another embodiment. 1...Case, 5...Cam plate, 6,1
4...Pin, 7...Push button rod, 8...
...Operation rod, 9,21...Specifier, 10...
...Push button, 11...Body part, 12...
... Suppressing part, 13... Cam hole, 13a, 13b
, 22a, 22b...cam surface, 13C...
...V-shaped apex, 22...protrusion.

Claims (1)

[Scope of utility model registration request] A cam plate that integrally has a protruding shaft and can slide in left and right directions;
An operation that is disposed on the frame so as to be slidable in the front and rear directions, and has forked legs formed at the front end, one of which has a first cam part and is elastically rotatable in a horizontal plane. A provision having a rod and a V-shaped recess, and is rotatably fitted into the groove between the two forked legs so that the vicinity of the ■-shaped opening serves as a rotation fulcrum and the V-shaped apex faces toward the front. It has a plate and a second cam part, which is fitted to the front end of the trifurcated leg part so as to be relatively slidable, and the first and second cam parts collide and release the collision when relative sliding occurs. and a push button that causes the forked legs to approach and separate from each other to restrain and release the restraint of the regulating plate, and when the push button is pressed, at least the operating rod and the regulating plate are pushed integrally. A push-button tuner configured to move one of the cam plate and the regulation plate to position the protruding shaft at the apex of the V-shaped recess for storage, readout, and tuning. .