JPS6043686B2 - push button tuner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION In the present application, the device frame is equipped with a channel selection member that slides in the front-rear direction and two lateral movement plates that move relatively in the left-right direction, and the channel selection member is pressed to operate. When this occurs, a pair of acting parts included in the tuning frequency storage member provided therein act on the inclined parts provided on the two transversely moving plates, respectively, and the resulting movement of the two transversely moving plates. Regarding a push-button type tuner in which a variable tuning element is varied corresponding to a variable position, the lateral movement of the two lateral movement plates is performed smoothly, and the pressing operation of the tuning member is made light. The embodiment will be described in detail with reference to the drawings below. A is a tuning member which rotates about the center of the arm 1 via a pivot 2, and has an operating part consisting of a shaft pin at the front and rear ends. 3a and 3b, a restraining piece 5 that restrains the memory member 4 by a tilting action, an actuation piece 6 that imparts a tilting action to this restraining piece 5, and a sliding arm 1. The push button 7 is movably connected and holds the operating piece 6, and this is slidably supported by the front and rear plates of the container frame B.

Reference numerals 8a and 8b are two transversely moving plates arranged in parallel in the front and back, orthogonal to the channel selection member A, and when the channel selection member A moves forward, they collide with the action parts 3a and 3b, respectively. Acting transverse plate 8
Window holes 10a and 10b having inclined edges 9a and 9b having the same direction of inclination for biasing the lateral movement of windows a and 8b are provided corresponding to each selection member A.

These two transverse movement plates 8a and 8b have a pair of L-shaped bends at one end, which are commonly pivoted to a pivot 11 whose middle part is fixed to the bottom plate b'' of the container frame B. Link pieces 12a, 12b
One end of each is connected via pivot shafts 13a and 13b, respectively. The long holes 18a and 18b are formed at the other end and extend in the direction of movement of the transverse plate, respectively.
18b are commonly engaged and connected to a protruding shaft 17 provided on a slide plate 16 that supports the variable tuning element 14 and slides along the guide shaft 15. In addition, the two horizontal moving plates 8a,
One end of link pieces 19a, 19b is attached to the other end of 8b by pivots 20a, 20b, respectively, and the other ends of the two transverse plates 8a, 8b are attached in a relative direction to the bottom plate b'' of the container frame B. They are each pivotally connected via a common pivot 21 so that they rotate in the same direction as the bending link pieces when the bending link pieces move laterally.
Therefore, the state in which the memory member 4 is restrained by the restraining piece 5 to the armrest 1, for example, the channel selection member A1 in which the memory member 4 is restrained in a tilted state at an intermediate position of the container frame B is not shown. When the user presses the push button 7 against the restoring spring, one of the operating portions 3a abuts against the opposite inclined edge 9a, and due to this abutting action, the transverse movement plate 8a on the saw side bends on one side. While being supported by the link piece 12a and one link piece 19a, the slide plate 16 moves in the direction of the arrow as the one bending link piece 12a rotates clockwise.

Then, along with this movable movement, the other bending link piece 12b also rotates clockwise by the protruding shaft 17, so that the other lateral movement plate 8b is supported by the bending link piece 12b and the link piece 19b. Then, the inclined edge 9b of the window hole 10b moved in the opposite direction to the horizontal moving plate 8a, that is, to the right,
collides with the other acting portion 3b opposite thereto. In this way, each inclined edge 9a, 9b where a pair of action parts 3a, 3b both face each other due to the lateral movement of the two lateral movement plates 8a, 8b.
When the lateral moving plate 8a collides with the inclined edge 9a and the working portion 3,
Due to the collision with the slanted edge 9b, the transverse movement plate 8b still tries to move to the left due to the collision with the sloping edge 9b and the working portion 3b, but it is opposite to the movement plate 8b which had been moving to the right due to the collision between the inclined edge 9b and the action portion 3b. It attempts to move in the left direction, that is, in the same direction as the other transverse movement plate 8a.
The bending link 12b was rotating clockwise accordingly.
rotates counterclockwise. As a result, the protruding shaft is in the long hole 1.
Narrowly compressed by the edges of 8a and 18b, the transverse movement plates 8a and 8b
The horizontal movement of and the forward movement of the tuning member A1 are stopped, and the variable tuning element 14 is varied in accordance with the movement position of the horizontal movement plates 8a, 8b corresponding to the rotation angle of the storage member 4, and the tuning is stopped. achieved.

In that case, the two lateral movement plates 8a, 8b are pressed to the left in the figure by the abutting pressure force of the acting parts 3a, 3b on the inclined edges 9a, 9b, at each abutting point of action. A force arises;
Since the reaction force also acts on the pair of acting parts, play can be eliminated between the container frame B and armrest 1, between the elongated holes 18a and 18b and the protruding shaft 17, and at each pivot joint position. It is possible to improve station accuracy. FIGS. 2 and 3 show another embodiment of the combination shown in FIG. 1, in which two transverse movement plates 8a and 8b are arranged vertically and overlappingly, and the configuration of the memory member 4 is changed. The memory member 4 in this configuration has a semicircular rotating plate 41 which is rotatably connected to the armrest 1 at the middle by a pivot 22 and is restrained by a restraining piece 5. A swinging piece 42a having 3a and 3b, respectively.
, 42b are pivoted to the rear ends 43a, 43b, and when the channel selection member A moves forward to the bottom plate b'' and the top plate b'' of the container frame B, the operating portions 3a, 3b are connected to the inclined edges 9a facing each other. , 9b.This figure shows a case in which guide holes 44a, 44b are formed to lead to the upper and lower sides of the lateral movement plates 8a, 8b, which are arranged in an overlapping state. The structure in which one end is pivotally connected to each other so as to be relatively movable, and the other end of the transverse movement plates 8a and 8b is connected to the bottom plate b'' of the container frame B via link pieces 19a and 19b is as follows. This is the same as the case shown in Figure 1, and the effect is also the same.

FIG. 4 shows another embodiment in which both ends of two transverse movement plates 8a, 8b are connected to the container frame bottom plate b'' by bending link pieces 12a, 12b and link pieces 19a, 19b. Bent link pieces 12a, 12b and link piece 19 in the figure
a, 19b to the respective pivots 11a, 11b and 21a, 2
1b to the five-frame bottom plate b'', and furthermore, link pieces 23 are provided at the other ends of the bending link pieces 12a and 12b, respectively.
The figure shows a case in which one ends of the slide plates 24a and 23b are pivotally mounted 24a and 24b, respectively, and a protruding shaft 17 provided on the slide plate 16 is engaged and connected to elongated holes 18a and 18b provided at the other ends thereof.

Conventionally, in this type of push-button tuner equipped with two transversely moving plates, the two transversely moving plates are movably supported by the side plates provided on the instrument frame B, so that the tuning member can be moved easily. When the two transverse movement plates are moved in the relative direction by moving forward and the action portion of one of the memory members provided there abuts against the opposing inclined edge, the channel selection member is placed at the point of action of the abutment. A reactive component of force that coincides with the forward direction of the container acts, and this reactive component of force presses the transverse moving plate against the side plate of the container frame.

In other words, the transverse plate moves laterally while one edge of its length is pressed against the side plate of the container frame, which impairs the smooth movement of the transverse plate and increases wear over time. Although it has the disadvantage that the tuning accuracy is impaired and the pressing operation of the tuning member becomes difficult, according to the present application, both ends of the two transverse movement plates are
Since these are connected to the vessel frame by link pieces that rotate in the same direction when they move relative to each other, the above-mentioned conventional defects can be improved, and the lateral movement plate is supported on the side plate of the vessel frame as in the conventional case. Since the formation of a hole can be omitted, the overall height can be reduced, which is effective in making the tuner thinner, and it also eliminates backlash during tuning, improving tuning accuracy. has advantages. Further, according to the present application,
It has the following advantages.

That is, in FIGS. 1 and 2, two transverse movement plates 8a, 8
When one end of b is pivotally connected to both ends of a single link piece 20a and 20b, which is reversibly pivotally connected to the bottom plate b'' of the container frame by a pivot 21, the other end is pivotally connected to the other end. 1
3a, 13b A pair of bent link pieces 12a, 12b
The other end is provided with elongated holes 18a, 18 in the protruding shaft 17 of the slide plate 16.
Since they are connected via b, the pivots 13a, 13b,
11, 20a, 20b and 21 are all located on the bottom plate of the container frame b
If the position specified above requires high manufacturing accuracy and there is some manufacturing error in the set position, the parallelism of the two lateral movement plates 8a and 8b will be out of alignment and the lateral This not only impairs the smooth lateral movement of the moving plates 8a and 8b, but also
According to the present application, two link pieces 19a and 19b are used and one end thereof is pivotally connected to two transverse movement plates 8a and 8b by pivots 20a and 20b, although this may affect the channel selection accuracy. At the same time, their other ends are connected to the pivots 21 to 21a, 2
Since it is pivotally connected to the container frame bottom plate b'' via the container frame bottom plate b'', there is flexibility in manufacturing the pivot position with respect to the container frame bottom plate b'', and therefore, it is possible to absorb errors in the setting position of the pivot, 2 horizontal moving plates 8
It has the advantage that the parallelism of a and 8b can be maintained accurately. 5, 6, and 7 show other embodiments of the means for absorbing the error in the setting position of the pivot shaft, and FIG. 5 shows the two link pieces 19a, 19b in FIGS.
Instead, the middle part of a single link piece 19 whose both ends are pivotally connected to the ends of two transverse plates 8a and 8b by pivots 20a and 20b, respectively, is provided with a long hole extending in the direction of movement of the transverse plates. 23 is connected to the bottom plate y of the container frame through engagement with the engagement shaft 24, and FIG. One end of the single link piece 19 is pivotally attached to one lateral movement plate 8a via a pivot 26, and the other end is attached to the other lateral movement plate 8b through a long hole 27 extending in the direction of movement thereof.
Further, FIG. 7 shows a case in which both ends of a single link piece 19 are pivotally connected to each other by an engaging shaft 28 and an engaging shaft 28.
The link piece 19 is pivotally connected to the ends of the horizontal movement plates 8a and 8b, respectively, via b, and the intermediate part of the link piece 19 is connected to the other end of the rotating link piece 31, whose one end is pivotally connected 30 to the container frame bottom plate b''. A case in which they are pivotally connected via a pivot 32 is shown, and the fifth,
In both cases of Figures 6 and 7, one of all the pivot joints for moving the two transverse plates in relative directions is supported in a movable state. Errors are absorbed in the movable support position, the parallelism of the two transverse plates can be easily maintained, and manufacturing is also easy.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is an overall plan view, FIG. 2 is an overall plan view of another embodiment with some parts omitted, and FIG. 3 is a sectional view taken along line I-1 in FIG. 2. , FIGS. 4 to 7 are diagrams showing other ways of connecting two transverse movement plates. In the figure, A is the channel selection member, 3a and 3b are the action parts, 4 is the memory member, 8a and 8b are the transverse movement plates, 9a and 9b are the inclined edges, B is the vessel frame, b'' is the bottom plate, and b'' is the top plate. , 11, 11a, 11b are pivots, 12a, 12b are bending link pieces, 13a, 13b,
20a, 20b, 21, 21a, 21b, 25, 26 are pivots, 16 is a slide plate, 17 is a protruding shaft, 18a, 18b
, 23, 27 are long holes, 19, 19a, 19b are link pieces, and 24, 28 are engagement shafts.

Claims (1)

[Scope of Claims] 1. A channel selection member that is slidably mounted on a device frame and has a pair of action parts on a memory member, and two transverse movement plates arranged in a direction that intersects the selection member. and when the channel selection member slides and one of the acting parts acts on the lateral movement plate facing it,
In a push-button tuner that achieves tuning when two horizontally moving plates move in relative directions and a pair of acting parts act on the corresponding horizontally moving plates, the two transversely moving plates are moved in relative directions. The mechanism for moving the container is comprised of a pair of bending link pieces whose intermediate portions are pivotally connected to the container frame, and one end of the bending link pieces is pivotally connected to one end of the two transverse movement plates, respectively. At the same time, the other ends are commonly connected to the movable part of the variable tuning element, and one end of the link piece is pivotally connected to the other end of the two transverse movement plates, and the other end is connected to the movable part of the variable tuning element. A structure in which the bending link pieces are pivotally attached to the container frame so as to rotate in the same direction when the moving plates move relative to each other. 2. Consisting of a channel selection member that is slidably mounted on the instrument frame and has a pair of action parts in the memory member, and two transverse movement plates arranged in a direction that intersects this member, the channel selection member When the member slides and one acting part acts on the lateral movement plate opposite it,
In a push-button tuner that achieves tuning when two horizontally moving plates move in relative directions and a pair of acting parts act on the corresponding horizontally moving plates, the two horizontally moving plates are moved in relative directions. The mechanism for moving in the relative direction consists of a pair of bending link pieces whose intermediate portions are pivotably attached to the container frame, and one end of the bending link pieces is pivoted to one end of the two transverse movement plates, respectively. and the other end is commonly connected to the movable part of the variable tuning element, and
Both ends of a rotating link piece whose middle part is pivotally connected to the container frame are pivotally connected to the other end of the transverse plate, and at least one of the pivot parts is engaged with the elongated hole. A structure that is connected by engagement with a mating shaft. 3. Consisting of a channel selection member that is slidably mounted on the device frame and has a pair of operating parts in the storage member, and two transverse movement plates arranged in a direction that intersects with the channel selection member, the channel selection member When the member slides and one acting part acts on the lateral moving plate opposite it,
In a push-button tuner that achieves tuning when two horizontally moving plates move in relative directions and a pair of acting parts act on the corresponding horizontally moving plates, the two transversely moving plates are moved in relative directions. The mechanism for moving the container is comprised of a pair of bending link pieces whose intermediate portions are pivotally connected to the container frame, and one end of the bending link pieces is pivotally connected to one end of the two transverse movement plates, respectively. At the same time, the other ends are commonly connected to the movable part of the variable tuning element, and the two ends of the two transversely moving plates are respectively pivotally connected with both ends of a link piece that rotates about the middle as a support axis. A structure in which the support shaft is pivotally supported at the other end of a rotating link piece whose one end is rotatably pivotally attached to the container frame. 4. A push-button tuner according to claim 1, 2, or 3, comprising two transversely moving plates arranged so as to overlap one another vertically.