JPS61253916A - Push-button tuner - Google Patents

Abstract

PURPOSE:To obtain convenience for use by deprssing an operating member of a channel selecting mechanism including a channel selecting member to select a specific channel with priority. CONSTITUTION:When a push button 13 is depressed to select a channel stored in the channel selecting member 23, the operating member 2 is driven forward, one tongue chip 7a of a switching lever 7 is abutted upon a stopper part chip 26 of the member 23 and the member 23 is also moved forward against its restoring spring 32. Then, an engaging piece 33 formed on the member 23 is locked with an locking slot 40 formed on a lock plate 36 and the forward movement state is held, and when the lock plate 36 is temporalily moved in the horizontal direction, a channel selecting member 23' held at the forward movement state is backed. When the depression of the bush button 12 is released, the member 2 is moved backward and the back edge of the tongue chip 7a operates a working piece 30 of the member 23, so that the lever 7 is reversedly rotated and a working member 19 is also reversedly rotated in the same direction.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present application relates to push-button tuners, particularly for use in car radio receivers.

Conventional technology A conventional support frame includes one operating member, two channel selection members,
Equipped with a plurality of presettable tuning mechanisms, which are arranged between them and include a switching mechanism that switches so that the tuning member alternately moves in the forward movement direction with respect to the operating member when the operating member moves back and forth. and a locking mechanism for holding the tuning member 1- in the forward movement state and releasing the forward movement holding state of the other tuning members in the forward movement holding state; A push-button tuner comprising a slide piece that acts on a tuning piece of a tuning member to change the same variable element is known, for example, in Japanese Patent Laid-Open No. 12615/1983.

Problems to be Solved by the Invention By the way, the push-button tuner described above has the feature that two stations can be selected with one operating member, but since the station is switched each time the operating member is suppressed, e.g. For regional or temporal reasons, for example, while actively listening to station A's broadcasts, suppressing the operating members of other channel selection mechanisms that do not include the %AA channel selection member, If you want to temporarily select a station and listen to the broadcast of station A again, press the operation member of the tuning mechanism including the selection member for station A once. There is an inconvenience in use in that the other channel selection member paired with the channel selection member enters the channel selection state), and then the operation member must be suppressed again to select the desired station A. Ta.

Embodiments and operations of the invention Therefore, the present application provides a push-button tuner having the above configuration,
When trying to listen to station A on your own.

After temporarily or auxiliary selection of another station by the channel selection operation of another channel selection mechanism that does not include the channel selection member for channel A, the operating member of the channel selection mechanism that includes the channel selection member for channel A. By suppressing the channel A, the inconvenience of the conventional system is eliminated by suppressing the channel A, and the disadvantages of the conventional system are eliminated. The operating member A2) consists of a long shaft (31), and on this shaft (3) there are folded pieces (41a, (41a) with the front and rear ends facing downward.
A downward U-shaped support piece (4) having a diameter of 4To is attached so that it is free in one rotation direction and fixed in the axial direction via a stopper piece (5). )” includes a switching device 111 ( 9) is provided.

The switching lever (7) has a pair of left and right tongue pieces (7k) whose tips open in a V-shape, and is formed to be Iwa wide (with the blade facing south), and the support piece is attached to this wide part. (4) A pin protruding from the top surface (which engages with Iα and switches the switching lever (7)
An arcuate hole αB is provided to limit the rotation range of the holder.

The front part of the shaft rod (3) has a non-circular cross section with one side cut in the axial direction, and this non-circular part (31
A main drive gear 2 is provided which moves together in the rotational direction and freely moves in the axial direction, and a push button (13) is fixed to the rear end.

As described above, the operating member (2) having the switching mechanism (9) on the support piece (4) has a support frame (14I front and rear plates σ, α41
A support frame bottom plate α is rotatably and longitudinally movably supported by the main drive gear α2 and the support frame front plate α41a.
The cutting piece cut out from 41c (at 151, the main gear housing 2
The spring αe that presses against the rear surface of the press 1! [
An operating member (2
) restoration springs are interposed respectively.

Further, on the support frame bottom plate (141c), a guide groove (1a) is provided on the lower edge Km of the folded piece (4) of the support piece (4) that engages with the engagement piece (4Jc) and guides its longitudinal movement. Operation member (2)
are arranged accordingly.

On the upper surface of the switching lever (7), the pivot l1l (61
An operating piece a9 whose intermediate portion is rotatably supported is provided. As is clear from Fig. 12, this acting part 9 is composed of a relatively long plate piece in the front-rear direction, and the upright pieces QD are located on the left and right sides of the front edge of the plate with an intermediate cutout part
&, (2) To, and the latter half is formed in a tapered shape, and an engaging step part (2) is provided on one side edge, and the notch part (2) is provided with the spring (8). Some of them are engaged.

The @′ of the two channel selection members that constitute the channel selection mechanism (11t) together with the operating member (2) have the same structure and are
For convenience of explanation, the specific configuration of one channel selection member Ω is shown,
Regarding other channel selection members (c), refer to (') to distinguish them.

That is, the channel selection member consists of a long shaft (to), and the shaft (24) has a threaded portion (c) and a sideways U-shape.
A stopper piece (2) whose front and rear pieces are fixed in the axial direction and free in the rotational direction so as to sandwich the threaded part [with], and a driven gear which can mesh with the main drive gear fi2 and which also has a large diameter. A square block-shaped selection pottery screwed into the surface and the threaded portion and having a bulging abutment portion on the upper surface is provided respectively (LJ),
And the stopper piece (c) has the switching lever (
))) comes into contact with the rear edge of one tongue piece (7-), and the switching lever (
an action piece (7) that applies a reversal action to the action member 71 and acts with the engagement step portion of the action member a9 to provide the reversal action;
When the operating member (2) is moved forward, the selection member a! comes into contact with the edge of one tongue (71aOm) of the switching lever (7).
3t-Abutment pieces C11) to be moved together are respectively installed upwardly, and the two channel selection members configured in this way,
The front and rear support frame plates (141a, 41b & C) are rotatably supported and movable back and forth so as to be aligned with the operating shaft (2), and the support frame front plate CL41a and the driven gear surface.

A tuning member @, (231' restoring spring (to)) and ea' are interposed between the fin', and the support frame bottom plate (L41c has a stopper piece @, @'
Guide grooves that engage with the engaging pieces a and c13' extending on the lower edge of the rear piece, respectively, and extend in the front and rear ``mt'' systems are provided corresponding to each channel selection member.

A locking mechanism is provided at the front position of the gripping frame for holding the stationary member that has moved forward in its forwardly moving state and releasing the other selecting member that is held in its forwardly moving state. has been done.

This locking mechanism consists of a long locking plate, and the bottom plate is connected to the bottom plate through engagement between the pin 67) and the elongated hole so that the locking plate moves laterally in the width direction of the support frame I. (It is mounted on the top of the lock plate 14e, and is always biased on one side in the longitudinal direction by a spring. At this time, the slanted edge acts with the engaging pieces to Q' provided on one piece of the stopper of the skeleton selection member and temporarily moves the lock plate (to) horizontally against the elasticity of the spring (to). (40a, and a series of locking step portions [b, :t] that lock with the writing engagement pieces [Yes] to [Yes]' when the tuning member moves forward in the light direction. A slit (4G) is provided corresponding to each channel selection member. Also, in the support frame 4, a magnetic core (4G) of the variable tuning element is provided.
6) T-Slide piece supported on leading edge lip (A31 is
The front and rear support frame plates (141a, α, etc.) are attached to the front and back plates (141a, α, etc.) so that they can move back and forth via support rods that are pivotally supported at both ends of the support frame. The ends of the support frame are provided with a support shaft (c) slidably supported by the front and rear plates (1 & α), and a spring spring that constantly presses the slide piece (43 backward) is provided on this support shaft (c). is the provision.

Therefore, three channel selection mechanisms (11, (11
'.

(1) Equipped with a centrally located tuning mechanism (only the right tuning member '' in 11 is held in the forward movement state by the lock mechanism (up), and the tuning member @ ゛Attach the sliding piece (4
2) In the state shown in the figure, in which a station is selected where the numbers 3 and 3 collide with each other, the operation relationship when the channel selection mechanism (operating member (2) of 11 is suppressed) is shown in Figs. 5 to 11 below. This will be explained in detail below.

That is, 2) The channel selection mechanism in the figure (in the fifth column showing the state of Ll, the channel selection member □□□ in the left position stores the station 1
- Press the button (131t) to make a selection, and the operation part shrine (
2) moves forward against the restoring spring (17), and at the same time, the switching lever (71) is provided with one tongue piece (71a) and a stopper piece (2) of the left position (c). Due to the contact with the rumor class piece (3B), the channel selection S material (c) also moves forward against its restoring spring cl-.In the forward movement process, it is tilted counterclockwise by the spring (8). The operating part Katazumi 9 shown in Fig. 6 is the tuning member (c)' in the right position whose rear side edge is in the forward motion holding state as shown in Fig. 6.
Acting with the operating member (to)', it momentarily tilts slightly clockwise, but immediately returns to its original position and then works with the operating member (2).
When the channel selection member in the left position moves forward sufficiently, the engagement piece provided on the channel selection member engages with the locking slit (4G) provided on the lock plate, and its forward movement state is maintained. At the same time, when the lock plate (to) temporarily moves laterally due to the action of the engaging piece lock and the inclined edge 10a, the "" of the right position selection member that was held in the forward movement state is .

The restoring spring 6γ causes it to retreat to the state shown in the off-line diagram.

Next, when the push button C13 is released, the operating member (2) is moved back by its restoring spring (In), and in the process, as shown in FIG.
) The trailing edge of a acts with the working circle of the channel selection member in the left position,
The switching lever (7) rotates in the opposite direction one clockwise direction, and accordingly, the operating portion Ra9 also rotates in the same direction, resulting in the state shown in FIG. 9.

That is, every time the operating member (2) moves back and forth, the switching mechanism (9) relatively switches, and the operating member (2) and the pair of left and right channel selection members @, G' alternately move in the forward direction. It becomes possible to move together. The left channel selection member (23
For example, station A is selected by the abutting action between the abutting portion (to) of the channel selection piece and the slide piece device.

In addition, in the states shown in Figs. 5 and 9, the main drive gear +12
) meshes with the driven gear □□□ and (5)', so the preset operation is performed by turning the push button α3. 1
1''' is exactly the same, and the L button 2 channel selection is achieved.0 By the way, as shown in FIG. From the selected state, select the corresponding channel selection device (other than 11) @(11
If the operating members of these mechanisms are suppressed in order to temporarily select a station included in ' to (1)', as mentioned above, the forward movement of the operating member will change its left position or The channel selection member in the right position moves forward via the switching mechanism (9), and its forward movement state is locked by the lock mechanism (toward).
is held and another station is selected.

In this selection process, the lock plate (to) temporarily moves laterally in the direction against its spring C31, so that the lock plate (to) temporarily moves laterally in the direction against the spring C31, so that the left position, which is held in the forward moving state in the channel selection mechanism (11), is moved horizontally. The localization member is retracted by its restoring spring.

Then, in the process, as shown in FIG. 10, the operating piece (to) of the channel selection member (c) acts with the engagement step provided at the rear of the operating member α9, and moves in the counterclockwise direction. , and the switching lever (7) is also subjected to a counterclockwise rotational force through the engagement between the center notch ■ and the spring (8), resulting in the state shown in Fig. 11. 0 Therefore, from this state, if you press the push button (13t),
The channel selection member in the left position moves forward (-) together with the operating member (2), resulting in the state shown in Fig. 11, and l pairs of -i!i station members Ω, c
Among j31#, the channel selection member (c) at the left position is selected with priority.

If the above-mentioned configuration does not have the operating member α9, any channel selection member can be removed from the state shown in FIG. move forward,
With the forward movement, the lock plate moves laterally, and the left channel selection member Ω, which is in the forward movement holding state, is moved back by its restoring spring r3S5, but the switching lever (7) does not move in reverse. Therefore, from this state, as shown in Fig. 11, the switching lever (7) is turned off while being tilted to the right. In order to move the station member (23) forward again, first press the push button α3 once and press the right tongue piece (7 stones) of the switching lever (7) and the station selection member in the right position.
Release contact with the abutment piece C31)'', move the right channel selection member (C)' forward together with the operating member (2), and temporarily maintain it in the forward movement state.At this time, When the operating member (2) is moved back, the switching lever (7) is rotated counterclockwise due to the action between the operating pieces of the channel selection member @ in the right position and the rear edge of the right tongue piece (7b). , it is reversed to the left and becomes the state shown in FIG.
231 needs to be moved forward, but according to this application, the
As shown at 11, the % switching lever (7) has already tilted to the left, and the operating member (2) and the channel selection member in the left position are in a state where they can move together in the forward direction. Channel selection member (23) can be selected with priority.

In the above-mentioned embodiment, the rear half of the action part (19) is formed into a shaft shape and extended, and one engagement step part (1) is formed on each edge of the action part (19).
However, in FIGS. 13 to 15, the rear part of the action piece cL1 is omitted, and the case where llI! is provided is shown. This shows a second embodiment in which only an "engaging step part" is provided on the I edge, and its effects are as follows: 1. tl14. This is the same as in the example.

Figures 16 to 19 show a working part with a 9t-bullet line configuration, and as shown in 191E, it is wound around the pivot shaft (6), and both pieces are connected to the switching lever (7). The locking piece provided for the rear working position of <471. 471, and one of the pieces is extended so as to act on the operating piece (to) provided on the -force channel selection member (c) to form the engaging stepped part. 17, when the tuning member in the left position moves backward, the operating piece Φ of the tuning member acts with the engagement step formed by the bullet. ,
A reverse rotational force is applied to the switching lever (7), and from this K the switching lever (71) is tilted counterclockwise to the state shown in FIG. 18.

Furthermore, FIGS. 20 to 22 show a case in which, in the third embodiment described above, one piece of the action piece α9 made of a bullet is further extended, and its middle is bent to close the engagement step part ■. The fourth embodiment is shown, and its operation is the same as that of the third embodiment, and the engagement operation between the operating pieces is stable and reliable.

In the above, all of the plurality of channel selection devices installed on the support frame α4 may be equipped with one operating piece, but any necessary channel selection device may be a selection device equipped with an operating member. Of course, it can also be used as a station device.

Effects of the Invention Since the present application is configured as described above, it is possible to prioritize and select the broadcasting station that one wishes to listen to independently, making it extremely convenient to use and having a simple structure. It has the following advantages.

[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, and FIG. 2 is a partially omitted overall plan view. The third factor is the sectional view taken along line A-A in Figure 1'1, the third factor is the BB@ cross-sectional view in Figure 1, Figure 4 is a partial plan view showing the locking mechanism, and Figures 5 to 11 are 1
FIG. 12 is an exploded perspective view of the supporting part, the switching mechanism, and the operating part;
Figures 13 to 15 are % Erased Fang Figure 5, Oro Prisoner, 1st
Other embodiment figures corresponding to figure 1, fangs 16 to 18
19 is a perspective view of the operating member and the channel selection member in this embodiment, and 20th to FIGS. 22A and 22B are diagrams of still another embodiment corresponding to the Osta, tio diagrams and FIG. 11, respectively. Internal notification (11, (1), (11" is the channel selection mechanism, (2) is the operating member, (7) Hiro switching lever, (9) is the switching mechanism, (
141 is a support frame, (L9 is an action part, @ is an engagement step part, ``,'' is a tuning member, 翺 is a tuning piece, (to) is an action piece, C (
1) is the contact piece, problem is the locking mechanism, (4υ is the variable tuning part,
(42) is a magnetic core, (43 is a slide piece. Patent applicant: Nippon Technical Co., Ltd. Figure 2 Figure 3 Figure 5 Figure 6 Figure 7 Figure 8 Saul Figure 9 Stainless steel Figure 10 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 2) Figure 22

Claims (3)

[Claims] (1) One operation member, two channel selection members, and a support frame are arranged between them, and each time the operation member moves back and forth, the channel selection member alternates in the forward movement direction with respect to the operation member. The support frame is equipped with a plurality of presettable tuning mechanisms each consisting of a switching mechanism that switches so as to move forward, and the tuning member that has been moved forward together with the operating member is held in that forward state in the support frame, and other In a push-button tuner comprising: a locking mechanism for releasing the forward motion holding state of the tuning member; and a slide piece acting on the tuning piece of the tuning member in the forward motion holding state to vary the variable tuning element. ,
One of the tuning members in all or part of each of the tuning mechanisms acts with that tuning member in the process of returning from the forward motion holding state due to the tuning operation of the other tuning mechanism that does not include it. A push-button tuner, characterized in that it is equipped with an action piece that imparts a reversal action to a switching mechanism in the tuning mechanism. (2) The switching mechanism is attached to the operating member so that it can be horizontally tilted to the left and right, and when the switching mechanism is tilted forward, it comes into contact with the tuning member on the tilting side in the forward movement direction, and when the operating member is restored, the switching mechanism It consists of a switching lever having a pair of tongues that act on a tuning member held in a moving state to receive a reversal action, and a spring that maintains the switching lever in a tilted state. , consists of a plate piece whose middle part is horizontally rotatably pivoted at the center of rotation of the switching lever, a part of the spring is locked at the middle part of the front edge of the plate piece, and one side of the rear part Claim 1, wherein the edge is provided with an engaging step portion that acts on the channel selection member and urges the switching lever to perform a reverse operation in the process of returning the channel selection member from the forward motion holding state. Push-button tuner as described. (3) The switching mechanism is attached to the operating member so as to be horizontally tiltable in left and right positions, and when the switching mechanism is tilted forward, it comes into contact with the tuning member on the tilting side in the forward movement direction, and when the operating member is restored, the switching mechanism It consists of a switching lever having a pair of tongues that act on a tuning member held in a moving state to receive a reversal action, and a spring that maintains the switching lever in a tilted state. , the middle part of which is fixed to the center of rotation of the switching lever, both ends of which are locked to the switching lever in a loaded state, and one end of which is fixed to the switching lever in a loaded state, and one end of which is fixed to the center of rotation of the switching lever. 2. The push-button tuner according to claim 1, wherein the push-button tuner is extended so as to interact with the tuning member during the return process of the member.