JPS5841689B2 - push button tuner - Google Patents

Description

[Detailed Description of the Invention] The present invention is equipped with a lid frame that is equipped with a channel selection member that slides in the front and rear directions, and two horizontal movement plates that move relatively in the left and right directions, and when the channel selection member is pressed. , a pair of acting parts included in the tuning frequency storage member provided thereon act on the abutting parts provided on the two transversely moving plates, respectively, and this corresponds to the amount of movement displacement of the two transversely moving plates caused by this. This invention relates to a push-button type tuner configured to change a variable tuning element by using a push-button tuner.An embodiment of the tuner will be described in detail with reference to the drawings below. It has working parts 2a and 2b consisting of a pair of shaft pins that are displaced in relative directions, and is rotatably mounted on a pivot shaft 3, and a memory member 4 is rotatably supported on a support shaft 5 so that when tilting, It consists of a restraining piece 6 that restrains the memory member 4, and an actuation piece 8 that slides together with the push button 7 and biases the restraining piece 6 for tilting operation,
In FIG. 1-2, on both sides of a circular plate piece 41 around which the memory member 4 rotates around the pivot shaft 3, there are leg pieces 42a having operating parts 2a, 2b at the tips, respectively.

FIG. 4 shows a case where the rear ends of 42b are pivoted 43a>43b, and FIG.
The case where a and 2b are provided integrally is shown.

The channel selection member A configured in this manner is attached to the front and rear plates b1. of the lid frame B. b2 is slidably supported, and the first and second
In the first embodiment shown in the figure, a guide groove 9a that slides and guides the operating portions 2a and 2b in the forward direction of the arm arm 1 is provided.
, 9b are formed on the bottom plate b3 and top plate b4 of the lid frame B.

'IOa, 10b are two transversely moving plates arranged perpendicularly to the channel selection member A so as to overlap vertically, and these are connected via a reversing mechanism 12 so as to move in relative directions. .

This reversing mechanism 12 consists of a T-shaped plate piece with a leg piece 12'' provided at right angles in the middle of a top piece 12', and the middle part is rotatably attached to the lid frame bottom plate b3 via a pivot 11. At the same time, both ends of the top piece 12' are connected to the pivot 13 a > 13
It is pivotally connected to one end of the transversely moving plates 10a and 10b via b.

Further, one end of the link pieces 14a, 14b is attached to the other end of the two transverse movement plates 10a, 10b, respectively, with pivot shafts 15a, 15.
b, and their other ends are commonly pivotally connected to a pivot 16 attached to the lid frame bottom plate b3.

That is, these two transversely moving plates 10a. 10b is supported in a hanging state by rotating pieces (T-shaped reversing mechanism 12, link pieces 14a, 14b), both ends of which are pivotally connected to the lid frame B, and are connected to the pair of operating parts, respectively. 2a and 2b, and a front edge thereof is provided with a portion that faces one of the operating portions 2a and collides with the operating portion 2a when the channel selection member A slides forward, causing one of the lateral movement plates 10a to move. An inclined abutting portion 17a that provides lateral movement also faces the other acting portion 2b, and when the channel selection member A moves forward, it abuts the acting portion 2b and laterally moves against the other lateral movement plate 10b. The abutting portion 17a that provides operational properties
Abutting portions 17b having the same inclination as the abutting portions 17b are respectively formed.

The present application particularly describes the abutting portions 17a and 17b,
When the acting parts 2a and 2b collide, the lateral movement plate 10
In order to generate a lateral force in the direction of pulling the reversing mechanism 12 at the reversing mechanism 12a and 10b, the reversing mechanism 12 is required to be configured so as to be inclined, for example, in the forward right direction in the figure.

A slide plate 18 supports the variable tuning element 19 and slides and guides it by a guide rod 20, and this slide plate is connected to the end of the reversing mechanism 12 through engagement between a long hole 21 and an engagement shaft 22. There is.

When the memory member 4 is restrained by the restraining piece 6 and the push button 7 is pressed against a restoring spring (not shown), one of the operating parts 2a collides with the opposing abutting part 17a, As a result, one lateral movement plate 10a moves to the left in the figure, and the reversing mechanism 12 rotates clockwise about the pivot 11, and the other lateral movement plate 10a moves clockwise about the pivot 11.
0b moves in the right direction opposite to the one transverse movement plate 10a, and the abutting portion 17b provided thereon abuts with the other acting portion 12b facing it, as shown in FIG.

In this way, when the pair of acting parts 2a and 2b abut against the opposing abutting parts 17a and 17b, the forward movement of the channel selection member A is blocked and the transverse movement plate 10a.

The variable tuning element is varied in correspondence to the amount of displacement of the channel 10b, and tuning is achieved.

When the pair of acting parts 2a and 2b abut against the opposing abutting parts 17a and 17b, respectively, as shown in FIG. Since the lateral force V acts in the direction of pulling the mechanism 12, there is no risk of the lateral movement plate being deflected by the lateral force, and the lateral movement plate can therefore be made from a thin plate material, making the tuner smaller and lighter. It is valid.

By the way, in the above configuration, when the two lateral movement plates are respectively engaged with the slits provided in the side plates of the lid frame and their ends are supported so that they can move laterally, it is necessary to When the lateral movement plate moves horizontally, a sliding resistance acts between the side where the slit is formed and the opposite edge), and this sliding resistance is proportional to the suppressing force of the channel selection member. Since polishing to a mirror surface is extremely difficult in terms of machining, the inner surface generally has a rough surface and has a large sliding resistance. It is necessary to make the material thick enough to withstand unconstrained sliding resistance, and it also has the disadvantage that the pressing operation of the channel selection member becomes difficult. Since it is supported in a suspended state, there is no sliding resistance that acts between the lateral movement plate and the lid frame. Therefore, the lateral movement plate can be made from a thin plate material, and the lateral movement relative to the variable tuning element is This has the advantage that the displacement of the moving plate is transmitted smoothly, and the pressing operation of the channel selection member is extremely easy.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIG. 1 is an overall plan view with some parts omitted, FIG. 2 is a sectional view taken along line I-I in FIG. 1, and FIG. FIG. 4 is a partial plan view showing another embodiment. In the figure, A is a channel selection member, 2a and 2b are acting parts, 4 is a memory member, 10a and 10b are transverse movement plates, 12 is a reversing mechanism, and 12'
1γ is the top piece, 1γ is the leg piece, 13a, 13b. 15a, 15b, 16 are pivots, 14a, 14b are link pieces, B is a lid frame, 17a, 17b are abutting parts, and 18 is a slide plate.

Claims (1)

[Claims] 1. A channel selection member slidably mounted on the lid frame and a reversing mechanism so as to move in a relative direction when the channel selection member collides with one of a pair of action parts of a memory member provided on the channel selection member. It consists of two connected lateral movement plates and a variable tuning element that changes in accordance with the amount of displacement of the lateral movement plates, and the pair of acting parts are connected to the abutting parts of the opposing lateral movement plates. In a push-button tuner configured such that when actuated, a lateral force is generated in the lateral movement plate in the direction of pulling the reversing mechanism, the reversing mechanism is moved from a T-shaped plate that rotates about an intermediate portion as a fulcrum. and having both ends of the top pieces pivotally connected to each end of one of the two transverse plates, and the variable tuning element is configured to be variable in a direction orthogonal to the direction of transverse force of the transverse plates. and its variable portion is connected to the leg piece of the reversing mechanism, and further each of the other ends of the two transversely moving plates can be moved laterally by a rotatable member that is pivotally attached to the lid frame. A push-button tuner characterized by being supported by.