JPS5823768B2 - Push button tuner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push button tuner, which has a thin and simple structure by pressing and clamping a regulator rotatably supported on an operating rod in a direction perpendicular to its rotation axis. An object of the present invention is to provide a push button tuner that can improve performance.

As a typical conventional push button tuner, for example, a plate-shaped operating rod having a fan-shaped regulator and a restraining piece is slid by a push button operation, and the regulator is connected to a pair of parallel bars of a predetermined transfer element. There is a method in which the control rod and the regulating element are placed in a vertical plane due to the relationship with the transfer element. However, there is a disadvantage that the height of the tuner in the vertical direction becomes large and the device is made into a prototype.Also, the structure is complicated, such as the need to provide a special restraining piece for the regulator clamp, and the number of parts is large. This method has disadvantages in that the material and assembly costs are high, and the cumulative errors during component assembly are large, which tends to reduce the synchronization accuracy.

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

FIGS. 1 and 2 each show one example of a push button tuner according to the present invention.
Overall perspective view of the embodiment and exploded perspective view of the push button rod, Figure 3A
-C is a plan view, a longitudinal cross-sectional view, and a longitudinal cross-sectional view taken along the line 1-N in the same figure B, respectively, of the main parts of the push button tuner.

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 5 are integrally formed by press bending, and the upper plate 6 can be attached.

As shown in FIGS. 3A to 3C, a protrusion 2a of a predetermined height is press-molded on the front end of the upper surface of the bottom plate 2. Yamabe 9c
(However, when the cam plate 8 is in the neutral position)
A pin 7 having an outer circumferential groove 7a is implanted in each of the pins.

Also, a pair of square holes 3a and 3b are provided on the front plate 3 at positions corresponding to each operating rod 13, which will be described later, and a square hole 4a is provided on the rear plate 4 at the same position.

Reference numeral 8 denotes a cam plate, which is held on both side plates 5 of the case 1 so as to slide in the directions of arrows A and B in the figures, as shown in FIGS. Then, a core (both not shown) integrated with this is moved to perform channel selection and tuning.

The cam plate 8 has a plurality of (
For example, 6) V-shaped cam portions 9 are formed by cutting,
Each cam portion 9 has a pair of cam surfaces 9a and 9b.

Further, a pin 10 is implanted near the peak 9c at the front end of the cam portion 9 (the rear end of the V is called a trough 9d).

Also, the pitch of the cam portion 9 (dimension between the peaks 90 or between the valleys 9d)
If P is the cam plate 8, the cam plate 8 is basically configured to be able to slide from the neutral position by a distance of P/4 to the left and right in order to prevent the push button rod 12 from coming off the corresponding cam part 9.
(That is, the maximum total slider amount is P/2) The slide amount is actually increased slightly by the action of the guide lever 11, which will be described later.

11 is a U-shaped guide lever, as shown in Figures 3A and B.

As shown by the cam in FIG. 4, an E-shaped portion 11b similar to a so-called F ring is formed at the inner part of the groove 11a.

The guide lever 11 engages the E-shaped portion 11b with the outer circumferential groove 7a of each pin 7 of the bottom plate 2, and the groove 11a with the cam plate 8.
It is fitted onto a pin 10 and is rotatably mounted around the pin 7 as a fulcrum.

In addition, the angle θ between the cam surface 9 a (, 9 b ) and the outer surface of the guide lever 11 in FIGS. 3 and 4 is 18 in any case.
It is set to be 0° or less (θ≦180°).

(The reason for this is that when θ>180°, the peak 9C of the cam portion 9 protrudes from the outer surface of the guide lever 11 in the plan view, and the regulator 14, which will be described later, gets caught on this, making it impossible to perform channel selection. ) 12 is a plurality of push button rods, each of which has an operating rod 13, a specifier 14,
It consists of 15 push buttons.

The operating rod 13 is a metal plate pressed into a predetermined shape, and as shown in FIGS. The main body part 21 and a restraining part 22 having a pressing convex part 22a are integrally formed in a bifurcated shape, and a protrusion 23 is formed on the rear side via a step part 13b.

In addition, the operating rod 13 has a pivot hole 13c in the middle of the groove 13a, a pair of stopper pins 13d, a stopper part 21a,
Engagement recesses 21b are respectively formed.

The restraining portion 22 is elastically displaceable in the directions of arrows C and D in FIG.

The regulator 14 is formed by punching a metal plate into a pear shape, and has an abutting part 14a with a tapered wall thickness only at the tip, a convex part 14b, a lower boss part 14c, and a hole 14d.

To attach the regulator 14 to the operating rod 13, as shown in FIG.
4 to be inserted and protruded.

Here, the spring plate 25 has a groove 25b with a narrow portion 25a and a hole 25c, as shown in FIGS. 2 and 5A and 5B.

The hole 25 has a rotation stopper 25d and a pair of spring parts 25e, and the hole 25 has a rotation stopper 25d and a pair of spring parts 25e.
It can be installed by fitting c.

The spring plate 25 is prevented from unnecessarily coming off or rotating due to the action of the narrow portion 25a and the detent 25d engaged with the groove 13a.

Therefore, as shown in FIGS. 1 and 3A, the regulator 14 is arranged so that the spring plate 25 is in contact with the operating rod 13 within the range in which its convex portion 14b is regulated to come into contact with the pair of stopper pins 13d of the operating rod 13. It is mounted rotatably in the directions of arrows E and F in the figure with a predetermined frictional force based on the bias of the spring portion 25e.

Note that the reason why the thickness of the contact portion 14a is locally made narrow is that the contact portion 14a is configured to be able to contact both the cam plate 8 and the guide lever 11, which have a step between them. The wall thickness is not limited to only a large portion, but the entire wall thickness may be large.

The push button 15 has a flat box shape and has a hole 15b with an inclined hole end 15a as shown in FIGS. 3A and 3B.
The push button 1 is fitted and attached to the front end of the main body 21 of the push button 1.
The pin 26 inserted through the hole 15c of No. 5 is further engaged with the engagement recess 21b of the main body portion 21, and the hole end portion 15a is positioned at a position where it abuts the convex portion 22a of the restraining portion 22.

In the push button rod 12 having the above structure, as shown in FIGS.
Corresponding to d, the main body part 21 and the protrusion 23 are respectively attached to the front plate 3.
The holes 3a and 4a of the rear plate 4 are fitted and supported without play, respectively, as shown by the arrow G in the figure.

Although it is said to be able to freely slide in the H direction (perpendicular to the arrow A and B sliding directions of the cam plate 8), the stopper part 2 is normally biased in the arrow H direction by a spring 27 fitted to the protrusion 23.
1a is in contact with the front plate 3.

Note that the restraining portion 22 is loosely fitted into the hole 3b.

In this case, in the front support portion of the operating rod 13, as shown in FIG.
The contact position of the lower surface is regulated by the upper edge of b and particularly by the upper surface of the protrusion 2a, and is guided smoothly without play.

The reason why this method was adopted is that if the lower edges of the square holes 3a and 3b of the front plate 3 are brought into contact with the lower surface of the operating rod 13 by matching the upper surface position of the protrusion 2a in FIG. Since the distance between the edge and the bottom plate 2 is small, when the front plate 3 is press-bent, the rear side of the lower edge of the hole is compressed and deformed, forming an R at both ends of the lower edge of the hole, and this R interferes with the operating rod 13. Therefore, it becomes impossible to support it smoothly.

The protrusion 2a also functions as a rib and increases the bending strength of the case 1 in the left-right direction.For example, the contact area is smaller than when the lower surface of the operating rod 13 is in full contact with the upper surface of the bottom plate 2. The frictional force, that is, the operating force is small, and the operability is improved.

According to the above configuration, since the flat operating rod 13 and the regulator 14 are respectively disposed on the horizontal plane, the vertical thickness can be reduced and the overall thickness can be made thinner, which is convenient because it does not take up space when incorporated into an automobile. In addition, the operating rod 13 has a body part 21 and a restraining part 22 that are integrally formed.Compared to conventional systems in which the restraining piece is a separate part, the number of parts is small, the structure is simple, and the number of assembly steps can be reduced. The cumulative error of the calculation can be reduced to improve accuracy and performance.

Next, regarding the operation of the push button tuner having the above configuration, first refer to Figs. 6 to 8 for the case where the guide lever 11 is not used, that is, the case where the cam plate 8 slides from the neutral position to the left and right within the range of P/4, respectively. Use and explain.

It is assumed that the midpoints of the cam surfaces 9a and 9b of the cam portion 9 of the cam plate 8 are respectively designated as point a.

As the tuning shaft is operated to select a desired station, the cam plate 8 moves from the neutral position shown in FIGS.
As shown in the figure, dimension d1 in the direction of arrow A (however, dl is P/4
) Suppose it slides.

Since each pin 10 of the cam plate 8 also moves in the same direction, each guide lever 11 rotates counterclockwise about the pin 7 as a fulcrum.

To store the desired station, press button 1 in Figure 6.
2 by operating the push button 15 and pushing it in the direction of arrow G against the spring 27 to make it slide.

Then, the contact portion 14a of the stipulator 14 contacts the inner side of the right cam surface 9b of the cam portion 9 (as shown by the two-dot chain line in the figure).
In other words, it comes into contact with a portion having a dimension d1 from the trough 9d.

Next, when the push button rod 12 is further slid in the same direction,
The contact portion 14a of the regulator 14 is guided by the cam surface 9b and rotates in the direction of arrow E, and as shown in FIG. Move in the direction of arrow A.

Thus, the sliding of the operating rod 13 is also stopped and the push button 15 reaches the position indicated by the reference numeral 15' in FIG. 3A, but up to this point the operating rod 13 and the push button 15 continue to maintain the mutual positional relationship shown in FIG. 6.

Subsequently, when the push button 15 is pushed in the direction of the arrow G in FIG. 7, the operating rod 13 does not slide and only the push button 15 slides in the same direction.

As a result, as shown in the same figure, the convex part 22a of the restraining part 22 rides up and moves from the hole end 15d of the push button 15 to the inner surface of the hole 15b, and as a result, the restraining part 22 uses the fire path near the regulator 14 as a fulcrum. It elastically rotates in the direction of arrow C in the figure and relatively moves in the direction of arrow H within the hole 15a together with the main body portion 21.

The push button 15 stops sliding in the direction of arrow G at the position where the front end of the main body 21 is brought into contact with the innermost part of the hole 15b, and reaches the position indicated by the reference numeral 15'' in FIG. The strands are pulled out and relatively reached the position shown in the figure.

Here, as the restraining part 22 is rotated in the direction of arrow C, the outer peripheral surface of the boss part 14c is pressed by the inner peripheral surface of the hole 13c, and the regulator 14 is clamped at this position so that it cannot rotate.

Next, when the pushing force of the push button 15 is released, the push button rod 12 maintains the configuration shown in FIG. 7 and slides back in the direction of arrow H by the spring 2T, and the stopper part 21a returns to contact with the front plate 3 and stops. .

The memory operation is thus completed. During the above operation, specifyor 1
4, the cam plate 8 does not slide in the directions of arrows A and B because the load of the synchronizing operation section is connected thereto.

Next, the operation of reading out and tuning to the desired station will be explained. At this time, as another station is selected, the cam plate 8 is slid from the position shown in FIG. 7, for example, in the direction of arrow B, as shown in FIG. 8. Dimensions 42 minutes from the neutral position (however, d2kuP
/4) Assume that it is moving to the right position.

Note that the guide lever 11 is also rotated clockwise accordingly.

First, when the push button 15 in FIG. 11 is operated to push and slide the push button rod 12 in the direction of the arrow G, the regulator 14 moves from the solid line position to the two-dot chain line position, and its abutting portion 14a is brought into contact with the cam. It comes into contact with a portion of the left cam surface 9a of No. 9 outward from point a (that is, a distance d, +d2 to the left from the valley portion 9d).

Of course, in this case, the contact portion 14a may contact a portion inward from point a.

Next, the push button rod 12 is pushed in further, but this time, the cam plate 8 is disconnected from the synchronizing operation section by a predetermined clutch mechanism, and is configured to easily slide in the directions of arrows A and B. Moreover, since the regulator 14 is in the clamped state, the regulator 14 moves in the direction of arrow G without changing its positional relationship with the operating rod 13 even after the contact.

This causes the cam plate 8 to move relative to its cam surface 9. a is abutted and guided by the abutting portion 14a of the stipulator 14 and slid in the direction of arrow A in FIG.

Thus, the cam plate 8 contacts the trough 9d of the cam portion 9 with the abutting portion 14a.
It slides for the above-mentioned distance d1+d2 and stops until it comes into contact with the slider, and eventually returns to the position shown in FIG.

During this time, the guide lever 11 is also rotated counterclockwise and similarly returned to the position shown in FIG. 7.

Then, the push button rod 12 is moved again to the stopper part 2 by the spring 27.
1a is returned in the direction of arrow H until it comes into contact with the front plate 3.

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

As understood from the above operation, the contact portion 4a is
While the cam plate 8 is abutting and guiding only the negative cam surface 9a or 9b (width dimension P/2), the cam plate 8 suddenly reaches the above dimension d1+d.
You have to slide for 2 minutes.

Therefore, there is a restriction of d1+d2×P/2 between the above dimensions.

That is, in this case, the dimension d1. Since there is no particular size relationship between d2 and d2, dl and d2 must be P/4.As mentioned above, the cam plate 8 must be within the range of P/4 in dimension from the neutral point to the left and right (that is, the total sliding amount P/4). Sliding is allowed only in 2).

-, (If d1+d2>P/2, the push button rod 12 will not be able to perform correct channel selection in correspondence with the cam section 9 adjacent to the corresponding cam section 9 at the time of reading.

If you wish to store another station after the readout is completed, you must first release the clamp on the regulator 14 so that it can rotate freely.To do this, press the push button 15 further in the direction of arrow H from the above state. If you pull it out, the operating rod 13 will move to the front plate 3.
The push button 15 cannot slide due to contact with the push button 15, and only the push button 15 slides in the same direction.

Therefore, the main body part 21 and the restraining part 22 move relatively in the direction of pulling out from the hole 15b, and the pin 26 moves into the recess 2 as shown in FIG.
1b and is stopped.

At the same time, the convex portion 22a of the restraining portion 22 is relatively connected to the hole 15b.
It moves from the inner surface to the hole end 15a and returns to rotation elastically in the direction of the arrow.

In this way, the clamp 14 is released from the clamp and becomes rotatable, allowing the next memorization possible state.

In the above embodiment, the cam plate 8 is moved from the neutral position to the left and right, respectively.
/4 (total P/2), but this sliding range is relatively small, and if all tuned stations correspond to this range, the tuning accuracy may decrease in some cases. There is a problem with fear.

In order to solve this problem, the pitch P of the cam portions 9 of the cam plate 8 should be increased, but the length of the cam plate 8, the distance between the push button rods 12, the slide stroke of the push button rods, etc. should be increased. This results in an increase in the size of the device.

Therefore, in the present application, a guide lever 11 is provided to increase the sliding amount of the cam plate 8 without changing the size of the device.
This will be explained using Figure 1.

In each figure, the same parts as in FIGS. 6 to 8 are designated by the same reference numerals, and their explanations will be omitted.

First, when storing the channel selection, the cam plate 8 slides from the neutral position by a distance of 63 in the direction of arrow A in FIG. 9 by operating the tuning shaft, and the desired channel is selected.

(However, d3>P/4) When the push button rod 12 is pushed in here, the contact part 14a of the regulator 14 contacts the outer part of the cam surface 9b than the point, and then rotates in the direction of the arrow E, causing the 10th As shown in the figure, the memory is completed by moving to the left by the dimension 63.

Next, after the push button rod 12 returns, the first
As shown in FIG. 1, it is assumed that the cam plate 8 now slides in the direction of arrow B and reaches a further 64 distance to the right from the neutral position.

(However, d4>P/4, that is, d3+d4>P/2) At this time, the contact portion 14a is removed from the corresponding cam portion 9 and the adjacent cam portion 9
However, when the push button rod 12 is actually pushed in, it first contacts the guide lever 11 and then moves to the cam surface 9a of the corresponding cam portion 9 without any trouble while being guided by the guide lever 11. Reproduce the state shown in the diagram.

In other words, the guide lever 11 covers the excessive movement of the contact portion 14a due to the excessive rotation of the regulator 14, and the cam plate 8 is allowed to slide by P/2 or more. .

In this example, the case where d3゜d4>P/4 is explained, but in reality, the condition is d3+d,>P/2 (that is, one of d3 and d4 may be less than P/4). If this is satisfied, the guide lever 11 will function.

In addition, as an actual example, when the guide lever 11 was not provided, the total sliding amount of the cam plate 8 was 8 mm, but when the guide lever 11 was provided and the cam plate 8 was used with 10 steps, the tuning accuracy was significantly improved. However, depending on the design, it can be as fast as 10m.

Next, other embodiments of each component of the push button tuner of the present invention will be described.

FIG. 12 shows a second embodiment of the push button rod 12. The operating rod 29 of the push button rod 28 has a groove 29a carved into the main body 30.
A restraining portion 31 with a short dimension is formed, and an oblong hole 29b is also formed.
can be established.

A connecting plate 32 has a pair of holes 32a and 32b, and is placed on the upper surface of the main body 30 with the front plate 3 inserted therethrough.

Reference numeral 33 denotes a flat rectangular cylindrical body, which is fitted into the main body 30 through a through hole 33b having a hole end 33a.
comes into contact with the convex portion 31a of the restraining portion 31, and the cylindrical body 3
The pin 34 inserted into and fixed to the hole 32 of the connecting plate 32
a and the lower end of the groove 29a are inserted in common, and the cylindrical body 33
is positioned at the position shown.

A push button 35 is fitted into the front end of the main body 30 through a hole 35a, and a pin 36 inserted and fixed into the push button 35 connects to the connecting plate 32.
The hole 32b and the lower end of the oblong hole 29b are inserted in common.

Therefore, the push button 35 and the cylindrical body 33 are integrated with each other via the connecting plate 32.

Therefore, when you press push button 35 when storing the channel selection, first push button rod 2 is pressed.
8 as a whole slides in the direction of arrow G, when the regulator 14 contacts and rotates against the cam plate 8 and is positioned, the push button 3
5 and the cylinder 33 relative to each other further in the direction of arrow G to elastically displace the restraining part 31, clamping the regulator 14, and completing the memorization.

The same procedure may be used for reading.

According to this, it has the same effect as the above embodiment, such as thinning, and although the number of parts is increased compared to the above embodiment, the length dimension of the restraining part 31 is shortened to suppress the regulator 14. This has the advantage that it can be made more reliable and that the overall length can be adjusted as appropriate by adjusting the length of the connecting plate 32.

13A and 13B show another embodiment of the guide lever 11. FIG.

This guide lever 41 has a circular hole 41a and an oblong hole 41b. The lever 41 is fitted onto the pin 10 of No. 8, and an E-ring 43 is engaged with the outer circumferential groove 42b of the small diameter portion 42a to prevent the lever 41 from coming off.

This has the advantage that the bell lever 41 can be mounted from above, although the number of parts increases.

14A and 14B show still another embodiment of the guide lever 11. FIG.

The guide lever 44 has an E-shaped part 44a and an oblong hole 44b, and the E-shaped part 44a is inserted into the outer circumferential groove 7 of the pin 7 as shown in FIG.
a, and the oblong hole 44b is fitted into the pin 10. Accordingly, the number of parts can be reduced.

The guide levers 41 and 44 have the same functions and effects as the guide lever 11.

In each of the embodiments shown in FIGS. 4, 13, and 14 above, the guide lever is not limited to rotating around the pin 7 side as a fulcrum; for example, as in the guide lever 11' shown in FIG. It is also possible to use a configuration in which the pivot point is the rotation fulcrum.

FIG. 16 shows another embodiment of the structure for mounting the regulator 14.

The spring plate 45 simply has a circular hole 45a, and the regulator 14
Removal is prevented and energized by an E IJ ring 47 engaged with an outer circumferential groove 46a of a posterior vaginal pin 46 that is axially fitted into a lower end protrusion of the pin 46 inserted through the pin 46.

According to this, the spring plate 45 can be attached in the axial direction of the pin 46, although the number of parts increases.

FIG. 17 shows still another embodiment of the regulator mounting structure.

This regulator 48 is a combination of the regulator 14 and the presser pin 24 shown in FIG. 3B, and has a pin portion 48b having an outer circumferential groove 48a.

The spring plate 25 and its attachment method are exactly the same as in the case of FIG. 3B, so that the number of parts and the number of man-hours can be reduced.

FIG. 18 shows a third embodiment of the push button rod 12 (operating rod 13).

The operating rod 50 of this push button rod 49 has approximately the same shape as the operating rod 13 described above, but its main body portion 51 and restraining portion 52
is the hole 3a in the front plate 3.

3b, respectively, but in reality, the restraining portions 52
Due to their own elasticity, they come into forceful contact with one side of the holes 3a and 3b, respectively, and eliminate looseness in the fit.

Therefore, the operating rod 50 is elastically removed from the play in the left-right direction and smoothly slides. Accordingly, since fitting precision is not required, removal of play is reliable and assembly is easy.

FIG. 19 shows a fourth embodiment of the push button rod 12 (operating rod 13).

This operating rod 53 has substantially the same shape as the operating rod 13 described above, but has a separate restraining portion 55 attached to the main body portion 54.

The restraining part 55 has an engaging convex part 55a provided at one end of the main body part 54.
It is assembled by slidingly engaging the notch hole 54a in the plate thickness direction, and is rotatable about the retaining part as a fulcrum until it comes into contact with the boss part 14c of the regulator 14, but after it comes into contact with it, In other words, it elastically displaces itself to clamp the regulator 14.

FIG. 20 shows a fifth embodiment of the push button rod 12 (operating rod 13).

The operating rod 61 has a tip 62a of a slender restraining portion 62 fitted into a U-shaped cutout hole 54b of the main body portion 54, and clamps the regulator 14 by elastically displacing itself.

FIG. 21 shows another embodiment of the push button 15 described above.

This push button 63 is provided with a hole end portion 63a having a quadratic curved surface instead of the inclined surface hole end portion 15a of the push button 15, and when the push button 63 is pressed, the convex portion 22a is relatively disposed at the hole end. It fits into the hole 63b via the portion 63a.

At this time, when the convex portion 22a is in contact with the upper part of the hole end 63a in the figure, the elastic displacement force of the restraining portion 22 itself is still small, but the slope of the hole end 63a is steep, so that the push button 63
The pushing force eventually becomes relatively large compared to the displacement force of the restraining part 22. On the other hand, when the convex part 22a is in contact with the lower part of the hole end 63a in the figure, the elastic displacement of the restraining part 22 itself Although the force is large, since the slope of the hole end 63a is small, the force for pushing the push button 63 becomes relatively small compared to the force for displacing the restraining part 22.

Therefore, each of the above-mentioned pressing forces tends to be approximately the same, and as a result, the pressing force of the push button 63 is made uniform without fluctuation from the start to the end of the pressing, improving the pressing feeling and improving the operability.

FIG. 22 shows a sixth embodiment of the push button rod 12.

In the above embodiment, the hole 13c was provided on the operating rod 13 side, and the shaft portion (boss portion 14c) supported by the hole was provided on the regulator 14 side to perform clamping in the direction perpendicular to the axis. In contrast, a shaft portion is provided on the operating rod side and a hole is provided on the regulator side to perform clamping in the direction perpendicular to the axis.

The operating rod 64 of this embodiment includes a main body portion 65 and a pressing convex portion 66a.
It integrally has a restraining part 66 which is elastically displaceable, and a boss part 67 extending in a groove is formed protrudingly on the upper surface of the prescribed zodiac support part.

The regulator 68 has a dog hole 68a and is rotatably supported on the boss portion 67.

(The means for preventing the regulator 68 from coming off is not particularly shown.)
The push button 69 is provided with a partition wall 69a having an inclined surface 69a on one side at the center of the interior thereof, and a pair of holes 6 formed thereby.
9c and 69d respectively to the main body part 65 and the restraining part 6.
6 is fitted to the front end.

For this operation, push the push button rod backwards and press the regulator 68.
When the push button 69 contacts the cam plate 8 and then rotates and further contacts the valley portion 9d, only the push button 69 slides rearward and relatively slides into the main body portion 65 and 69d, and the restraining portion 66 At the same time as it slides into the hole 69c, its convex portion 66a rides on the inclined surface 69b, thereby being elastically displaced in the direction indicated by the arrow in the figure, contrary to the case of each of the above embodiments.

As a result, the outer diameter of the boss portion 67 is enlarged, and the regulator 68 is clamped at the rotational position, completing the memorization.

Other operations are the same as in each of the above embodiments.

Although the boss portion 67 of the operating rod 64 is solid, it is not limited thereto, and may be a ring-shaped boss portion 70 as shown in FIG. 23.

Since this boss portion 70 has some elasticity in the direction of clamping the regulator 68, the clamping operation becomes more stable.

In the above embodiment, both the operating rod and the regulator are arranged in a horizontal plane, but they may be arranged in a vertical plane if the overall thickness of the device is not considered.

In this case, the device becomes a prototype, but the restraining piece as a separate component is not required, and the device has the same effects as the above embodiment in other respects.

As described above, according to the push button tuner of the present invention, the operating rod is formed by integrally forming the main body part and the restraining part.Compared to the conventional system in which the restraining part was a separate part, the push button rod is formed as an operating rod and a regulator. It is composed of three parts: the control rod and the push button, and the number of parts is small and the configuration is simple, reducing assembly man-hours.Accordingly, it is possible to reduce the cumulative error of parts and improve accuracy and performance. By forming the device into a flat plate shape in the horizontal plane, the overall configuration can be made thinner in the vertical direction, and the entire structure can be made smaller, so it has features such as being extremely convenient because it does not take up much space when incorporated into an automobile or the like.

[Brief explanation of the drawing]

FIGS. 1 and 2 each show one example of a push button tuner according to the present invention.
Overall perspective view of the embodiment and exploded perspective view of the push button rod, Figure 3A
-C is a plan view, a longitudinal cross-sectional view, and a longitudinal cross-sectional view taken along line I-I in the same figure B, respectively, of the main parts of the push button tuner, and Fig. 4A
, B are a plan view and a vertical cross-sectional view showing the configuration of the guide lever and cam plate of the push-button tuner, respectively; FIGS. 6 to 8 are diagrams showing the configuration of the cam plate sliding amount of the push button tuner before, during the storage operation, and before the read operation, respectively. Figure 1 shows the configuration before the channel selection memorization operation, during the memorization operation, and before the readout operation when the board slide amount is small.
Figure 2 is a plan view of the second embodiment of the push button rod, Figure 13A,
B is a plan view and a vertical sectional view of another embodiment of the above-mentioned guide lever and cam plate configuration, and FIGS. 14A and 14B are a plan view and a longitudinal sectional view of still another embodiment of the above-mentioned guide lever and cam plate configuration, respectively. 15 is a plan view of still another embodiment of the guide lever and cam plate configuration, and FIGS. 16 and 17 are respectively another embodiment and still another embodiment of the regulator mounting structure of the push button tuner. FIG. 18 is a vertical sectional view of the push button tuner according to the third embodiment of the push button tuner, FIG. 19 and FIG. and a plan view of each operating lever applied to the fifth embodiment,
FIG. 21 is a cross-sectional plan view of another embodiment of the push button of the push button tuner, and FIGS. 22 and 23 are exploded perspective views of the sixth embodiment of the push button rod, and main parts of a modified example of the operating rod. FIG. 1... Case, 7, 10, 26, 36, 42° 46... Pin, 8... Cam plate, 9...
...Cam part, 9a, 9b--cam surface,
11, 11', 41° 44... Guide lever, 11a, 13a, 25b. 29a... groove, 12, 28, 49...
Push button rod, 13.29, 50, 53, 61.64...
...Operating rod, 14.48.68...Observer, 15
,35,69...Push button, 21.30,51,5
4,65... Main body, 22.31.52.55
．． 62.66...Suppression part, 25,45...
...Spring plate, 32...Connection plate, 33...
・Cylinder, 54a, 54b...Notch hole, 62a
...Tip, 69a...Slanted surface.

Claims (1)

[Claims] 1. An operating rod which is integrally formed in a trifurcated shape with a main body portion that does not elastically displace and a restraining portion that is elastically displaceable at its front end side and can be slid forward and backward, and a predetermined position in the forked intermediate groove of the operating lever. A rotatably supported regulator, which is commonly attached to the front end of the main body and restraint part of the operating rod, is pushed and slid rearward together with the operating lever, and the regulator is rotated to a predetermined memorized position. 1. A push button tuner comprising a pushing member that elastically displaces a dynamically displaced post-vaginal restraint part toward the body part or in the opposite direction, and presses the regulator in a direction perpendicular to the axis to restrain it.