JPS6128418Y2 - - Google Patents

Description

[Detailed description of the invention] The present application is a push-button type in which a tuning member equipped with a regulation plate is pressed to reproduce the station tuning point stored in the regulation plate on a variable tuning element via a transverse movement plate. Regarding the tuner, play in the coupling mechanism connecting the transverse movement plate and the variable tuning element is substantially eliminated, thereby improving the tuning accuracy.

Generally speaking, in a push-button tuner in which a lateral movement plate is moved laterally by pressing the tuning member, and the variable tuning element is varied by the lateral movement to select a station, the variable tuning element is moved to the position of the lateral movement plate. When the transverse movement plate and the variable tuning element are disposed at an arbitrary position away from the constraints, the transverse movement plate and the variable tuning element are generally connected via a connection mechanism consisting of a combination of link pieces, for example.

However, in the coupling mechanism, there is some play in the connection between the link pieces, and this play accumulates, causing an error between the movable displacement amount of the lateral movement plate and the variable amount of the variable tuning element. There is a risk of losing station accuracy.

Therefore, the present application aims to improve the connection accuracy by eliminating play in the connection part between the transverse movement plate and the variable tuning element.An example of this will be described in detail below with reference to the drawings. One end is rotatably attached via a support shaft 3 to a arm arm 2 having rising ribs 1 along both side edges in the width direction, and a regulating plate 5 with a storage section 4 provided on the free end side, and a shaft. It has a restraining piece 7 which is attached to be tiltable by a pin 6 and which restrains the free end of the regulation plate 5 when it is tilted, and a slidable actuating member 8 which biases this restraining piece 7 to perform a tilting action. The channel selection member A is slidably supported on the front and rear plates b ₁ and b ₂ of the device frame B. It consists of two horizontal movement plates 10, 10' that move laterally in a direction orthogonal to the push button operation of the channel selection member A, and the horizontal movement plates 10, 10' have different inclination directions. They have slanted edges 11 and 11', respectively, and by these slanted edges 11 and 11', V
The two transversely moving plates 10, 10' are overlapped to form a letter-shaped cam part, one end of which is connected to the bottom plate of the container frame.
b ₃ through the relationship between the elongated hole 12 and the engagement pin 13 so as to be laterally movable. C is coil body 14
The magnetic core 15 that appears and disappears inside this coil body 14
The magnetic core 15 is supported by a slide plate 17 that is slidably guided by guide rods 16, 16. Reference numerals 18 and 18' denote connection mechanisms each consisting of one link piece, and one end of each of the pair of connection mechanisms 18 and 18' is connected to a connection pin 19, respectively.
19' to one end of each of the two transverse movement plates 10, 10', and the other ends of the pair of coupling mechanisms 18, 18' are provided on the slide plate 17. It is commonly pivotally connected to the tongue piece 20 via a connecting pin 21. Reference numeral 22 denotes an elastic piece 2 which is interposed in a loaded state between the two transversely moving plates 10 and 10' so that the opposing inclined edges 11 and 11' are separated.
3 is a stopper of the channel selection member A, and 24 is a spring for restoring the channel selection member.

In a normal state, one lateral movement plate 10 is biased by the elastic piece 22 in the left direction in the figure, and the other lateral movement plate 10' is biased in the right direction in the figure, and these two Lateral moving plates 10, 10'
The pair of connecting mechanisms 18, 18' connected to the connecting mechanisms 18, 18' are also subjected to pressing forces in opposite directions, and the looseness of the connecting portions at both ends of the connecting mechanisms 18, 18' is eliminated by the pressing forces in opposite directions. In this state, if the push button 9 is pressed from the state shown in FIG. Match the intersection while being guided by. Then, because the inclined edges 11 and 11' are in opposite directions, one lateral movement plate 10 receives lateral force in the left direction in the figure, and the other lateral movement plate 10' receives lateral force in the right direction in the figure, and this lateral force Since the direction coincides with the direction of the lateral force exerted by the elastic piece 22, the looseness of the connecting portions at both ends of the connecting mechanisms 18, 18' can be maintained.

That is, even in a channel selection state in which the memory portion 4 of the regulation plate 5 coincides with the intersection of the pair of inclined edges 11, 11' by pressing the channel selection member A, the two transverse movement plates 10, 1
This eliminates all looseness at the connecting portion between 0' and the slide plate 17, and improves the accuracy of channel selection.

In the first embodiment described above, there is a long hole 1 in the substrate b ₃ of the container frame B.
2 and the engagement pin 13, the two transverse movement plates 10, 10' are arranged to face each other vertically, but FIG. to 1
A pair of storage units 4, 4' are provided one behind the other, and the machine frame B
Two transverse plates 10, 10' are slidably supported on left and right side plates _b4 , _b5 so as to be parallel to each other in the front and back, and the memory sections 4, 10' are respectively supported on each transverse plate 10, 10'.
window holes 25, 25' having opposite inclined edges 11, 11' having different inclination directions so as to act on the window holes 25, 25', and at one end of each of the two transverse movement plates 10, 10'. The respective free ends of the rotation links 27, 27', which are commonly pivotally connected to the base plate _b3 via the pivot shaft 26, are connected to each other through the engagement of the engagement pins 28, 28' and the elongated holes 29, 29', respectively. In addition to connecting each rotation link 27, 2
Attaching an elastic member 22 that urges lateral force in the same direction as the direction of the lateral force applied to the two lateral moving plates 10, 10', respectively, is attached to the mounting pieces 30, 30' provided at 7', respectively. In addition, the other two lateral movement plates 10, 1
A pair of connecting mechanisms 32 and 32' each consisting of a pair of L-shaped rotation links each having a bent portion pivotally connected to the other end of the long hole 3 via a common pivot 31 is connected to one end of each of the long holes 3 and 32'.
3, 33' and the engagement pins 34, 34', and long holes 35, 35' are provided at the other ends of the coupling mechanisms 32, 32', respectively. Engagement pin 36 provided on tongue piece 20 of 17
A second embodiment is shown in which the two are commonly engaged and connected.
In this configuration as well, the two sheets are biased by the elasticity of the elastic piece 22 and by the lateral force that is applied during channel selection when the pair of storage sections 4, 4' abut against the pair of inclined edges 11, 11'. All play in the connection between the transversely moving plates 10, 10' and the slide plate 17 is eliminated.

Furthermore, FIG. 4 omits one of the rotation links 27, 27' in FIG. A pair of coupling mechanisms 3 consisting of dynamic links
7, 37', one end of which is commonly pivoted to the pivot 31, the other end of one coupling mechanism 37 is attached to one of the lateral movement plates 10, and the intermediate part of the other coupling mechanism 37' is attached to the other lateral movement plate 10. An engaging pin 36 is connected to the moving plate 10' through elongated holes 38, 38' and engaging pins 39, 39', respectively, and is further provided on the tongue piece 20 of the sliding plate 17.
A long hole 4 provided in the middle of the one coupling mechanism 37
0 and the other connecting mechanism 37' are commonly engaged and connected, and an elastic piece 22 is attached between the pair of connecting mechanisms 37 and 37'. This shows the case of 2.
All looseness in the connection between the transverse movement plates 10, 10' and the slide plate 17 is eliminated.

Further, FIG. 5 shows a fourth embodiment in which a channel selection member A' having a different configuration from the first embodiment is applied. This channel selection member A' is a regulation plate consisting of a disc that rotates about a center 45 as a fulcrum to an arm 44 which has a push button 41 at one end slidably connected through engagement with a shaft pin 42 and an elongated hole 43. 46, and one end thereof is pivotally mounted to be tiltable, and when tilted, the regulation plate 4
A pair of restraining pieces 48a that hold 6 on the left and right sides,
48b, a memory portion 49 curved concentrically with the regulation plate 46 is integrally bulged out, and the push button 41 has a push button 48 with respect to the armrest 44.
A pair of restraining pieces 48a, 48b when sliding 1.
The restraining pieces 48a, 48
cam holes 50a, 50b that tilt b in a crosswise manner
It has a known configuration, and its operation is the same as that of the first embodiment. In addition, 51,5
1' is a bent rib provided along the inclined edges 11, 11'.

Therefore, according to the present application, in a channel selection state in which the memory section of the regulation plate is brought into contact with a pair of inclined edges by pressing the channel selection member, the two transverse movement plates are biased in opposing directions. By using the lateral force of the lateral force, it is possible to eliminate all play in the connection between the two regulating plates and the variable tuning element, thereby improving the tuning accuracy. A single elastic piece is interposed between the two transverse plates to apply a lateral force in the same direction as the lateral force applied to the transverse plate due to collision between the lateral plate and the inclined edge of the transverse plate. Therefore, even in the non-tuning state where the tuning member is not pressed, all play in the connection between the two transversely moving plates and the variable tuning element is eliminated, and the risk of play due to external vibration is eliminated. Not only is there no friction, but even if there is a situation where the lateral movement plate or rotation link does not operate smoothly due to contact friction or catching between parts due to manufacturing, the situation will be resolved by the elasticity of the elastic piece. Since it is eliminated in advance, there is an advantage that the operation to eliminate backlash during channel selection operation can be achieved reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is a partially omitted plan view, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is a plane view showing another embodiment showing the main parts. FIG. 4 is a partial plan view showing still another embodiment,
FIG. 5 is a partial plan view showing still another embodiment. In the figure, 2 and 44 are arms, 4, 4', and 49 are storage parts, 5 and 46 are regulation plates, 7 is a restraining piece, 8 is an operating part, 9 and 41 are push buttons, and 10 and 10' are horizontal movement parts. board, 1
1 and 11' are inclined edges, 17 is a slide plate, 1
8, 18', 32, 32', 37, 37' are connecting mechanisms, 22 is an elastic member, B is a container frame, C is a variable tuning element, 26, 31 are pivots, 27, 27' are rotation links, 28, 28', 34, 34', 36, 39, 3
9' is an engagement pin, 29, 29', 33, 33', 3
5, 35', 38, and 38' are long holes.

Claims (1)

[Claims for Utility Model Registration] (1) A tuning member equipped with a regulation plate that memorizes a tuning point, and a lateral force in a relative direction when the tuning member is pressed to reproduce the tuning point. The vessel frame is equipped with two transversely moving plates to which the plate is provided with a lateral plate so as to slide across each other, and one end of each of a pair of independently movable coupling mechanisms is attached to the two transversely moving plates. , and the other ends thereof are commonly connected to the variable part of the variable tuning element, and further, a unit that applies lateral force in the same direction as the lateral force applied to the two lateral movement plates. A push-button tuner consisting of one elastic piece interposed between two transversely moving plates. (2) The push-button tuner according to claim 1, which is comprised of two transverse movement plates that are vertically opposed to each other. (3) A pair of rotating links that rotate using one end as a fulcrum are engaged and connected to two horizontally moving plates through the engagement of an elongated hole and an engagement pin, and the pair of rotating links are 2. A push-button tuner according to claim 1 or 2, wherein an elastic piece is attached to the push-button tuner.