JPS62178007A - Pushbutton type tuner - Google Patents

Abstract

PURPOSE:To facilitate the muting without complicated constitution by providing a cam mechanism between an operating member and a muting switch operating piece. CONSTITUTION:In depressing a pushbutton 12, an operating member 13 is forwarded and a channel selection member 8 is forwarded interlockingly via a toungue piece 10 or the like, gears 7, 21 mesh with each other to set the channel selecting state. In depressing the button 12 further in this state, the operating part of a turning piece 41 is pressed into contact with the slope of a cam 42 attended with the forward of the member 13, a muting switch operating piece 37 is moved right, a muting switch S is turned on to select the muting state. Thus, it is not required to increase the operating stroke length of the member 8 for the muting control and the muting operation is facilitated without complicated constitution.

Description

[Detailed Description of the Invention] The field of industrial application is particularly useful for self-care! This invention relates to a push-button training device that is effective for Dm geo receivers.

Prior Art and Problems Conventionally, a tuning mechanism comprising an operating member and a tuning member is mounted on a supporting frame, and the tuning member is moved forward by pressing the operating member. In addition to holding a pre-motion state,
! ! In the middle of the process, Toshimoto, a member of the work, was restrained and
), Fltl @The tuning member in the holding state completely disables the tuning, and the operating member displays the position of the tuning mechanism during tuning, and furthermore, the tuning member in the forward holding state performs manual adjustment. 4 to preset in conjunction with the Yutaka mechanism! ? The push-button recycle device that has been developed has already been proposed in Japanese Patent Application No. 183982/1982.

By the way, regarding the push-button recycler mentioned above.

If a muting operation mechanism is installed to turn off the audio circuit of the radio receiver in connection with the tuning operation in order to eliminate noise during the tuning operation, the following disadvantages arise.

That is, for its purpose, the operation of the switch for muting operation needs to be maintained at least until the tuning member is moved forward by the operating member and then held in the forward position. Operation of the switch 1. What should be done in connection with the operation of the channel selection member is difficult because it is difficult to select a channel when the channel selection member is in the forward motion state, so it is difficult to do anything related to the operation of the operating member. It is necessary to do so.

However, if the muting switch is operated in conjunction with an operating member, the operating member will be more immersed in the non-tuned state than in the non-tuned state, and will be in the next state. , the operation of the muting switch cannot be simply related to the operation member 1b, and the muting switch is actuated in conjunction with the operation member Fi'i], and then the tuning section $1) is moved forward. When configuring it so that it is tilted, the suppression stroke of the operating member must include the stroke necessary to operate the muting switch in addition to the stroke necessary to select the IY4 station member. This has the disadvantage that the aesthetic dimensions of the height tuner become large.

OBJECTS, EMBODIMENTS AND OPERATIONS OF THE INVENTION Accordingly, the present invention provides a cam mechanism between the operating member and the actuating member for the muting switch to solve the above-mentioned inconveniences.

Examples thereof will be described in detail below with reference to the drawings.

A has a threaded part (2;) on the shaft il+, and this threaded part (
21, is/jj piece (31 is screwed together and % front d
Threaded part (21 front T & end -ffr +41. +5
1 is located on the planar U-shaped action part L61, which is a thin piece of material (1).
On the other hand, iq@ is fixed in the force direction and becomes an eye in the rotating force direction.
81, a long operation member formed in a U-shape on the Chinese J city t~r side (91, a front folded piece of the front dC action part (6) that protrudes laterally (41, a protruding piece that protrudes upward) (Has a tongue piece u01 that abuts against the 4 and a locking piece (1) that projects upward),
The tuning mechanism is composed of an operation member (IJ) provided with a push button Q3' at the rear end. The operating needle (9: is supported so as to be movable back and forth), and in the non-tuning state, one channel selection member i8+
and the operating member (131 is the quaternary spring (1), respectively).
41, (151) is held in the retracted state.

Although not shown, C has a crown cap in the front groove that meshes with a pinion cap (17) spaced apart in the direction of the axial force of the rotation axis rotated by a manual adjustment mechanism, and has a crown cap on the bottom plate of the standing support frame B. The transmission shaft ■ is rotatably supported by the U-shaped support piece α9, which has a long cross section in the horizontal direction, and then moves together in the rotational force direction and freely moves in the axial force direction. and when the channel selection members 1 and 81 are in the IJ al state, the 14
7) Transmission gear meshing with Q】1 and this gear #l CD
This is a power transmission beak consisting of a spring C, 9 which presses the spring C, 9 into pressure contact with a receiving piece cut out from the bottom plate of the support frame B and provided from K. The bowls are placed on the bottom plate of the support frame B.
5) is a plate-shaped locking piece that can be moved laterally through engagement with the elongated hole @, and is always elastically biased in one direction by a spring CD. Action piece (6
A locking part (2) that locks the downward locking piece 1281 provided on the front folding piece (41) is arranged corresponding to each of the two channel selection members (81). By engaging with the full-length hole C32 at the upper end of the support column 6D installed upright on the bottom plate of B, it is equipped so as to be movable laterally along the rear plate b' of the support frame B. It is constantly biased in one direction.

A locking portion (2) that locks the fr3a pi operation member operating member gelatinized piece Qll is disposed facing each tin manufacturing portion forest 0, respectively.

D is the actuation mechanism of the muting switch S, which can be moved laterally automatically through the engagement of the pin (2) and the elongated hole (3) on the support piece (l), and the spring The plate-shaped actuating part C3' is constantly pressed in one direction by transportation.
The rI and front δ operating members (131C are pivotally mounted to the front ends of the operating rods (9) l' so that they can rotate in the vertical direction, and the springs C
The rotary piece Qυ is always biased to rotate in one direction by 39, and has an operating portion (40) at the end in the biasing direction.

As is clear from FIG. 9, the operating portion (4) is provided on the operating portion C371 and is
i] and a lateral first inclined fPr part umbrella which makes the actuating part move laterally against the on't spring (to), and following its terminal part, the operating rod (91) , 1liiJ to rotate the brake piece Qυ against the bias of the spring c3j.
The second moth slope in the rearward direction (42!b) is followed by the straight movement of the operating portion (4) until the operating rod (9) moves forward sufficiently. 421c and press 1
)0α2 is released and the operating lever (9) retreats,
The operating part t4 (1) fc which has come out of the groove part (421C) is guided to allow the restoring operation of the operating part l!n by the spring □□□, and following this, the operating member u3 The second guide 5 (421e) maintains the rotating shape Bt″ against the biasing force of the rotating fly while the second guide 5 (421e) is held in the retracted state, and the operating rod (9) In the process of restoring from the retracted state, the cam part (6 ) and ηλ
In this example, a case is shown in which the first and second guide portions (6) d and @ are formed on the same flat surface. (43 is a guide sliding groove without a locking protrusion.

Therefore, when the 2nd push-down α21t is pressed against the restoring spring α9 from the non-tuned state shown in Fig. 2, the +4 operating rod (9) bends and the locking piece <1)1 comes into contact with the inclined line of the locking part, and the restraint piece (7) temporarily moves sideways against the spring (at the time of this movement, other operations that are locked to the locking part) The locking piece (1) 1 of the member t131 comes off). Next, as the operating rod (9) moves forward, the tongue αα moves to the operating member (6) opposite to it, as shown in FIG.
Since it comes into contact with the protruding piece (41'), the channel selection member (8; moves forward together with the operating member a3.) With this forward movement, the locking piece 6 comes into contact with the inclined edge of the locking part 2, and is locked. Piece Q4 temporarily moves laterally against its spring 1271 (at the time of this @ excitation, the protruding piece (jllg of the other tuning member +81 that is locked on the locking part c!■) comes off)0 Then, as shown in Fig. 5, after the channel selection member (81) has moved forward sufficiently, press the push button σ force to t〈, and then press the button σ force to the end (with the channel selection member 81 moved slightly backward). -, L LLL l'1C
II L M A! 2- +L I/r
h Todoroki M+ ÷ t 4li fsaku≦jf
At the same time, the gear (7) meshes with the transmission gear ta of the transmission mechanism C. On the other hand, the operation member (91) is further retreated by its belly spring a9, but in the middle of this movement, as shown in the off-line diagram, the locking piece 01: locks into the locking part (2) of the restraint part. Then, its retreat is restrained, and the button push button becomes more immersed than the position in the non-tuning state shown by the imaginary line in the same figure, and as a result, the position of the tuning system is displayed. .

When performing preset operation, if you operate the 1 manual 404 mechanism, the pinion gear αη will change as the rotation axis α rotates.
Meshing between and Crown Kya Q81, transmission pongee (to) and mJ
Through the engagement of M, QII and (7), the channel selection member (8+
As a result, the tuning piece (31) is displaced in the front-rear force direction, and a preset is performed.

Next, the operation of the actuating mechanism of the muting switch S will be explained.

At top C, when the push button 0z is depressed and the sliding member U moves forward, the action part (40 is the cam part (40) of the two-turning piece (41) Touched by Ri Akabe.

1 actuating part 1.371 due to the component force acting on its abutting part
moves laterally against the spring field, thereby closing the muting switch S and turning off the audio circuit of the radio receiving circuit. Next, with the forward movement of the operating member αJ, the first acting part (40 is the upper inclined part (421a) moves from the end position of the second inclined part (421b K 6 rows, and this second #4 inclined part (42b) As shown in Fig. 4, the 1st rotating piece (421b) rotates against the spring C39, and in this state, the 1st acting part 4 rises to the top of the 2nd diagonal part (421b). , goes straight to the groove part (43c), and the good performance member u3 is moved forward sufficiently, and at the same time, the channel selection member (81 is also moved forward sufficiently.) Next, when the push button (121) is released, the operating member u3 releases its spring. α9 retreats, thereby 1 action part f
4(l is removed from the groove part 43(!) (at this time, the channel selection member f8+ is already in the forward moving state due to the locking member CI!).

The inside of the O1 bundle (reaches the 4th line d, so the actuating part 3'0 is
It is restored by the spring (support), the muting switch S is opened, and the audio circuits of the three radio receiving circuits are restored.

Furthermore, as the threading member (tll) retreats, the first working part 4 becomes the second
The operation member (131) is prevented from retreating by the restraining piece (■) while the guide part (4'lJe K) is retreated and the single rotation piece (41) is rotated in the direction against the spring C3!J. .

Then, by another channel selection mechanism A's channel selection operation.

Due to the retreat of the operating rod (9) when the restraining part one side temporarily moves v4 and the restraining state on the operating part forest side is released, the operating part (4 (l is mTMt or #i oblique part) 421a'i- It passes through and reaches the step part (43f, and the rotating fly is the spring C3
! Return to the initial state by J.

Effect of the invention The main prayer is a sword that is constructed like an eave.

A push-button tuner with a groove bottom, which is equipped with a tuning mechanism consisting of a tuning member and an operating member, and in which the operating member is retracted and displays a tuning display in the tuning state where the tuning member is held in a forward movement state. In this case, the muting operation has the advantage of being easy to perform with no sound.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a plan view of the main parts in a non-tuned state, FIG. 2 is a sectional view taken along the line II in FIG. 1, and FIGS. 3 and 5 are respectively 1, FIGS. 4 and 6 are sectional views each showing an operating state corresponding to FIG. 2, and the OFF view is a plan view of main parts in a channel selection state. FIG. 8 is an I-M cross-sectional view of the off view, and FIG. 9 is a perspective view of the cam portion. In the figure, A is the tuning mechanism, B is the support frame, and C is the transmission mechanism. D is mute ink operation, (81 is the channel selection member, 0
is an operating member, an example is a locking part, (to) is a restraining part, 67
) is the operating proof/piece, ta is the spring, t4tl is the action part, +
41) is a rotating piece. (43 is a cam part, S is a muting switch. Patent applicant: Japan Technical Co., Ltd. Agent Masu Toshiharu Ouchi 7'- (・ - Figure 6 Figure 7 Port 1 Figure 8

Claims (4)

[Claims] (1) Equipped with a channel selection mechanism consisting of a channel selection member and an operating member that moves the channel forward, and in a channel selection state in which the channel selection member is held in a forward motion state, the operating member becomes retracted and selects a channel. In a push button type tuner configured to display a station, an actuating member is provided on the operating member, and an actuating member that is permanently biased and that operates a muting switch when moved against the biasing force, and A vertically rotatable rotary piece that is rotatably biased in one direction and is provided on the actuating member and acts on the rotary piece to apply a biasing force to the actuating member when the operating member moves forward. and maintains this moving state while the channel selection member is held in the forward moving state while applying a rotating force to the rotating piece in a direction that opposes the biasing force, and the operating member 1. A push-button tuner comprising a muting operation mechanism comprising a cam part that allows the actuating part to be restored during the process in which the actuating part is restored and held in the retracted state. (2) The tuning member has a threaded part on the shaft rod, the tuning piece is screwed into this threaded part, and the gear rotated by the manual adjustment mechanism is pivotally attached to the shaft rod while the forward movement is maintained. A push-button tuner according to claim 1, wherein the operating member has a tongue on the operating rod that causes the tuning member to move together when the operating rod moves forward, and a push button is attached to the rear end of the operating member. . (3) A push-button tuner according to claim 1 or 2, wherein the actuating member is a plate that is movable laterally and is always pressed in one direction by a spring. (4) The rotating piece has an acting part at one end in the rotation biasing direction, and the cam part contacts the acting part and laterally moves the operating piece against the biasing force. a first inclined part in the direction; and, following the terminal end thereof, a second inclined part in the front-rear direction that acts with the acting part as the operating rod moves forward and rotates the rotating piece against the biasing force thereof; and, following this, a groove portion that allows the operating portion to move straight, and a first guide portion that guides the operating portion that has escaped from the groove portion as the operating member retreats, and allows the operating portion to return to its original state. While the operating member is retracted and held in the retracted state, a second member maintains the rotating state against the biasing force of the rotating piece.
In the process of restoring the immersed state of the guide part and the operating member,
4. The push-button tuner according to claim 3, further comprising a stepped portion for allowing the rotating piece to return to its original state.