JPS59101921A - Push-button type tuner - Google Patents

Abstract

PURPOSE:To prevent generation of channel selection error by providing a screw part whose spiral direction is different from the screw part, on a channel selection member, and screwing a detaining piece into this screw part so that a detained state of the detaining piece and a lock plate is always kept constant. CONSTITUTION:When a knob 11 of an operating member 1 is rotated, a channel selection frame 22 or 22' moves forward and backward by threaded engagement with a screw part 18 or 18', and by following it, a moving plate also moves forward and backward, being made to press-contact with a storage part, a variable tuning part is varied, and a preset operation is executed. At the time of this preset operation, a detaining part piece 26 or 26' screwed to a thin screw part 25 or 25' also moves in the opposite direction to the channel selection frame 22 or 22' although it is very small (in reality, a shaft lever 17 or 17' moves only a little against the part piece 26 or 26'), but a detained state of a projecting part 26a or 26'a and a detaining stepped part is maintained. In this way, it does not occur that the part piece 26 or 26' inclines to the shaft core direction in a detained state with a lock plate, and its detained state is always kept constant.

Description

[Detailed description of the invention] In the present application, the two channel selection members are in the forward locked state.

The present invention provides a push-button tuner with high tuning accuracy by eliminating the fluctuation of the lock position.

Conventionally, a tuning member consisting of a shaft rod having a tuning piece that is screwed into a screw portion and moves back and forth and a locking piece that locks with a lock plate is provided on the knob or in parallel with the tuning member. The operating member consisting of a shaft is moved forward by a suppressing operation to press a movable plate interlocking with the variable tuning unit against the tuning piece, and its forward movement state is maintained by locking with the locking piece and the locking plate. A push-button tuner is known in which the tuner is held in place and, in this state, the tuning member is rotated by rotating the knob or the operating member to perform presetting.

However, according to the known press M1 type tuner, the locking piece that locks on the lock plate is interposed between a pair of front and rear locking rings that are locked on the shaft rod, and is fixed to the shaft in the axial direction. Since it is mounted so that it can rotate freely in the rotational direction, there may be a slight gap between the locking part and the stop ring, some distortion of the stop ring, or an irregular contact position between the locking part and the stop ring. Due to such reasons, when the locking piece is locked with the lock plate, it tilts more or less in the axial direction, and the inclination is not constant, so when selecting a channel, the locking piece moves to 2 and becomes the base point. It has a defect that the locking point with the lock plate fluctuates more or less, causing a tuning error.

Therefore, the present application improves the above-mentioned conventional defects, and examples thereof will be described in detail below with reference to the drawings.

In this embodiment, a pair of channel selection axes are arranged at the left and right positions of a single operating shaft, and channel selection is performed by interlocking the pair of channel selection axes so that they can move forward alternately for each forward and backward movement of the operating shaft. This is an example of a one-band or multi-band push-down tuner configured as shown in FIG. A switching lever (5) having a folded piece and having an intermediate portion rotatably attached to the upper surface via a pivot shaft +41', and a spring (6) that maintains the rotating state of this switching lever (5). A U-shaped support piece (
3) inserts the shaft rod (21) into the folded piece and inserts the stopper piece (7).
It is mounted so that it is fixed in the front and back direction and freely movable in the rotation direction. The tip of the switching lever (5) is formed wide with a V-shaped tongue piece f51a, +5To, and a pin protruding from the upper surface of the support piece (3) is attached to this wide part. An arcuate hole (9) is formed that engages with the switching lever (51) to limit the range of rotation of the switching lever (51).The front part of the shaft rod (21) has one side cut in the axial direction. This non-circular portion (21a
A main drive gear housing α that moves together in the rotational direction and freely moves in the axial direction is inserted into the shaft, and a knob (111) is attached to the rear end of the shaft rod (21).
is attached to the shaft. The operating member (1
1 is rotatably and slidably supported at its front part by a support frame (front plate U2i of 14) and by its rear part by a rear plate a, and between the support frame front plate Oh and the driving gear (101). is a spring (141) that presses the rear surface of the main drive gear (11m) against a rising piece (131) cut and raised on the bottom plate 0Zc of the support frame housing, and an operating member ( A return spring (151) is interposed between each of the operating members (1).
θ and ulil' have the same configuration, and for convenience of explanation, the specific configuration of one channel selection axis 06) is shown, and the other one is distinguished by 2 in the figure and marked with ('). That is, the channel selection member (161
consists of a long shaft rod 0η, and the shaft rod (17) has a threaded portion (181) formed in a horizontal U-shape, and is fixed in the axial direction so that its front and rear pieces are located in front and behind the threaded portion side. A stopper piece (191 that is free in the rotational direction) is screwed together with the driven gear (a) that can mesh with the main drive gear (lOl and has a larger diameter than that) and the threaded part 08, and has a storage section on the upper surface. c!
A square block-shaped channel selection piece (2z) with a bulging D is provided respectively.

and the stopper piece (19+) includes a protruding piece (C) that comes into contact with the rear edge of one tongue piece (5)a of the switching lever +51 to impart rotational action to the switching lever (5). , a locking piece c!4 is provided, which comes into contact with the front line of one tongue piece (51a) of the switching lever (51) and moves the channel selection member (161) together when the operating member (11) moves forward. .

Further, between the driven gear (A) of the shaft rod (17J) and the stopper piece 0, there is provided a thin threaded part 4 which has a spiral direction different from the threaded part (181) and has a small helical pitch. In addition, a locking part (261) having a protrusion C261a at the bottom is screwed into this thin threaded part (c). The front and rear plates a21 of the support frame az are parallel to the left and right positions of the operating member (1).
a, 021b so as to be rotatable and movable back and forth, and between the front plate (121a and the driven gears (2tJ, (20+') are tuning members (161, return springs for (161'!271.(2η)), respectively. ' are interposed therebetween.Furthermore, the bottom plate (121c) of the support frame 021 has the locking piece parts 1.
(Guide hole +2 that engages with 26+' and guides its longitudinal movement)
81 and υ mark' are provided respectively.

The relationship between the operation member (1!) and the pair of channel selection members (161, (161') located on the left and right sides of the operating member (1!) is as shown in Fig. 5, as will be described later. The tuning member αe and the operating member (11) located on the left 11j+ are held in the forward movement state by the lock plate that moves forward, and the selection member αe and the operating member (11) are in the return state by the return springs (271 and 05), respectively, and the switching lever (5) is Tilt it to one tongue piece (51
When the front edge of a is in the same state as the locking piece c!4 of the stopper piece a9 provided on the left channel selection member (161), when the knob ttU is pressed from this state, the one Through contact between the tongue piece t51a and the locking piece (2) of the stopper piece 0, the operation member (11) and the channel selection member (16) located on the left side are connected.
1 moves forward together, and during this forward movement, as will be described later, the channel selection member U6 on the right side is connected to the lock plate (7), which will be described later.
The forward movement holding state due to is released, and the return spring +
271', and the forward moving state of the tuning member (IO2) at the left position is maintained by the lock mechanism described later.Next, when the knob (ill) is released, the operating member (1) The return spring 09 returns to the original state, but during this return process, the rear edge of one tongue piece (51a) of the switching lever t51 is connected to a stopper piece (one tongue piece) provided on the channel selection member u61 located on the left side. When they collide, the switching lever +51 rotates clockwise in the figure, and this state is maintained by a spring (61) as shown in FIG. is the stopper piece (1) provided on the other channel selection member (161').
It is in a state where it can come into contact with the locking piece (241') of the box.

In other words, every time the operating member (1) moves back and forth, the switching lever (5)
are switched to each other, and the operation member (1) and the left and right pair of channel selection members (161, (161') become relatively movable in the forward movement direction.As is clear from FIG. As shown in the figure, a locking plate (to) is arranged through the pin 129 and the long hole (29 stone) so as to move laterally in the width direction on the surface of the bottom plate (1aC) of the support frame (121). B, this lock plate group is always biased in one direction in the longitudinal direction by a spring (31).This lock plate (7) has a tuning member (16).
- (When 161' moves forward together with the operating member (1),
The protrusions (261a to a6) provided on the locking part of the channel selection member
When the slanted edge (3aa) and the 1 channel selection member are moved forward enough to move between the lock plates in the direction against the elasticity of the spring (311), the above projections @ C2G'lIa to (26 formation) A locking slit country consisting of a locking stepped portion 1321b and a locking stepped portion 1321b for locking is provided corresponding to each channel selection member.The 20-piece board OC has an escape hole for the stand-up Katazumi 3. H is the variable element (C) of the variable tuning section (C).
3 - A movable plate that supports
It is supported so as to be movable back and forth by a guide rod (G) which is fixed to h and a21b, and at the center thereof, a support frame rear plate 1121bIc extending in the front and back direction has one end and a variable tuning section 351 at the other end.
Support rods 137) are supported in a slidable manner, respectively. 881 is a return spring for the movable plate (b).

However, if you press the knob (111) at an arbitrary position.

The shaft rod (21, support piece (3), and main drive gear QOI move forward together), and one of the channel selection members (161') located on the left and right sides also moves forward together with the operating member (1). Then, the forward-moved channel selection member engages the locking protrusions (261a to (261a) of the locking pieces C61 to (26+') to the slanted edges (321
When it comes into contact with the locking plate (3Tb), the forward movement state is maintained, and the locking step part (3Tb) is held in the forward movement state. A moving plate c is attached to the storage section (21) to (211') of the shaft (16) to 061'.
When the station numbers match, the variable tuning section (35) is varied to select a desired station. On the other hand, the channel selection member, which is held in the forward movement state, is released from the forward movement holding state and returns to its original state during the lateral movement of the above-mentioned lock tapping. From this state, when you release the pressure on the knob (Ill), the operating member f
As soon as the i+ returns, the switching lever (
5) is reversed and switched, and in the state shown in FIG.
Each of the 21 stored stations is selected.

Also, in the states shown in Figs. 5 to 86, the knob (1
When 11 is rotated, the selection pieces Qz to (22') move back and forth due to the screw engagement with the screw parts (181 to α8)', and the movable plate (2) follows this and moves from the storage part to the part 1. The variable tuning part C351 is varied by moving back and forth while being in pressure contact with ', and preset sweeping is performed.

During this preset operation, the locking pieces ■ to ω' screwed into the thin threaded parts (25i to 4') will also move slightly in the opposite direction to the channel selection piece.
Since the locking steps (321b to C3%) of the lock plate (7) are held in the locking step portions (321b to C3%) of the lock plate (7), the locking pieces (4 ) to t26+', the shaft rods Q7) to αη' move slightly), but the protrusion sC& to □□□) and the locking step (
The locked state with 3 islands or 0% is maintained.

In the embodiment of two or more, a pair of channel selection members (161, (161') are arranged on the left and right positions of the operation member (1), and the % operation member (1) is arranged.
A case has been described in which the interlocking relationship between the operating member 11 and the channel selection member u61.tte+' is switched via a switching mechanism that switches each time the button 11 is pressed. Naturally, the present invention can also be applied to a tuner of the type provided.

In the above embodiment, the operating member (11) has l pairs of left and right channel selection members, (16) which switching groove a is connected to the shaft rod (2) of the operating shaft (1).
A switching lever +51 is rotatably attached to the support piece t3+ attached to the support member t3+, and this switching lever (5)
+, (16) Which shaft rod (17L (when one piece of the stopper is provided on each sword), switch with 1231' of the protrusion of the housing, and attach one piece of the stopper (I91° provided on one sickle). % Figures 7 to 10 show a case in which the locking piece is configured to lock relative to the locking piece example 1, but in Figures 7 to 10, another switching mechanism is used and the forward stroke of the operating member (1) is Another embodiment in which the tuning member housing 61. (161) is configured to move fully forward with double the stroke is shown.

That is, in FIG. 7, a support frame is provided with a set of channel selection mechanisms consisting of one operating member and two channel selection members It.

This is an overall plan view of another station selection station, with this part omitted. An upward U-shaped support piece (41) is attached to the folded piece with a shaft rod (21).
By inserting it, it can be freely rotated in the rotating direction and fixed in the axial direction. This shaft rod (2) has a non-circular cross-sectional detail (21a) partially cut in the axial direction at the front part, and engages with this shaft part f21a in the rotational direction and moves freely in the axial direction. A driving gear 01 is inserted through it, and a knob U is provided at the rear end.

The operating member (11) configured in this way is rotatably supported by the front and rear plates of the support frame α, and is rotatably movable back and forth.
and between the main drive gear curve and the support frame front plate (121a,
The main drive gear (101) is connected to the spring I that presses against the upright piece (131) cut and raised on the support frame bottom plate (121c), and the operating member (
11 restoring springs (151) are interposed, respectively. L pairs of tuning members (151) which form a set with the operating member +11
61, (161' is the shaft side, (17 is the screw part (18)
1, Q&' is formed in a horizontal U-shape as shown in Fig. 9, and is supported in a freely movable manner so that the threaded part (181, 081') is located between the front and rear pieces of the U-shape, as shown in Figure 9, and is attached to the lower plate. The abutting pieces (4h, uw) and the rack (42) that meshes with the pinion are also included in the guide pieces (421, (421
', a storage part 1211 on the upper surface which is screwed into the screw part (181, Q81'), a swollen angular selection part o, @', and the guide piece (6), forward of u4'. The locking pieces (A) and (To)' which are located at and screwed into the thin threaded parts ta and c! Driven gears (2) and (2111') each having a larger diameter than the driven gears (2) and (2111') that can mesh with the operating member (2111') are provided. The front and rear plates (121a, u2) of the support frame u4 are located parallel to the left and right sides.
1b so as to be rotatable and movable back and forth, and the front plate (1
Tuning members (161, (161') (7) restoring springs (2'/1.17n') are interposed between 21a and the driven gears (21J, (2t) l', and the support frame (
The bottom plate aac of the 12+ has the locking piece U61. (26
The guide hole (2
), c! 81', and the guide piece +421. (42
The protrusions (421c, (426) provided on the rear piece of 1' and the guide holes (113, (431') that engage with them and guide their forward and backward movement correspond to the respective channel selection members (161, (161') (The lock plate is a lock plate that moves laterally in the direction directly opposite to the operation member (11), and the low plate (121 (,
It is supported through the engagement between the elongated hole (41) and the bottle (46), and one channel selection member (161 to (1b) is attached to the rear edge of the slot).
The locking pieces 126) to (2) move forward.
6. A sloped edge which acts with the lower end of the locking plate to temporarily impart lateral movement to the locking plate against its restoring spring.

Following this, a cam piece 5 having a locking step portion (491) that locks the lower end of the locking portion (a) to cue' is formed corresponding to each tuning portion (2). ) is a switching mechanism that alternately blocks the forward movement of the left and right channel selection members u61° (161'). 1 pair of rising pieces 11s
'1. f111' and a vertically long rocking plate with arc-shaped connecting holes at the rear, a T-shaped abutment piece (end) at the left and right positions of the top piece, F4', and a leg piece. A rotary plate having a protruding shaft η, and an intermediate portion of this rotary plate (goods) are rotatably pivoted to the bottom plate c of the support frame U4 through the mounting hole φ2. This switching mechanism Q consists of a pivot shaft end and a snap spring that maintains the rotating state of the rotating plate.
) 1) is the rocking plate - on the bottom plate 02Ic of the support frame u2i.
is located between the l pair of left and right guide holes (43° (4''!j'), and in the swinging state, the rear edge is
In order to alternately close the guide pieces (421'), the guide pieces (42) located on the left and right sides are
4 parts b and t are installed by engaging the retaining pin end in the connecting hole so as to face the abutting piece ■9 wheel' of the rotating plate in the front and back direction, and one end of the snap spring... is secured to the protruding shaft 6η, and the narrow end is secured to a shaft pin I provided on the bottom plate f121c. Although not shown, there are channel selection members (161 to (161') that are moved forward) on the support frame 021.
An example of a moving plate that presses into contact with the storage unit (211 to (21), etc., and a variable tuning unit (
351, and a support rod C37) extending in the front-rear direction is provided at the center of the movable plate, as in the case of the previous embodiment.

One channel selection mechanism shown in FIG.
) is locked to the locking stage 5 (491 of 441 to maintain its forward movement state, and the operating member (1) and the channel selection member (16) which is in the forward movement state are ' and left 1
The other channel selection member 06) located in the 111th position is in the restored state, and the rocking plate flash and the rotating plate (4) of the switching mechanism φυ are both rotating counterclockwise (7th It is placed in the state shown in the figure (a).

Then, when the knob (ill) is pressed from this state, as mentioned above, the switching mechanism φD will move a part of the trailing edge of the rocking plate that has moved once as shown in the position of FIG. Since it is placed across the guide hole 43' located on the right side, one of the channel selection members (161' side guide piece (47J') which is in the forward moving state has its projections (4 to 6) Since forward movement is prevented by the trailing edge of the rocking plate, the guide part (42' rack) that is prevented from moving forward (42' rack) rotates horizontally while being guided by the and therefore the other rack that meshes with this (
421a, the guide piece □□□ at the right side moves forward with a stroke twice that of the operating member fi+, and the front piece of this guide piece (four front pieces comes into contact with the locking piece).
The shaft rod 07) also moves forward together with the guide piece (421).In this case, the locking piece (26) is attached to the lock plate (421).
The lock plate (4) acts on the inclined edge (481) of the lock plate (4), and a lateral force in a direction opposing the spring (471) is temporarily applied.

The locking piece I26+' of the tuning member 061', which was held in the forward moving state, and the locking step (49) are disengaged, and the shaft rod αη' of the tuning member (161') It is restored by a restoring spring (27, etc.).On the other hand, there is a storage part (not shown) in the memory section of the left side tuning member (161) which moved forward together with the operating member (11), which moves back when the right tuning member 061' is restored. When the rear edge of the movable plate is in contact with the moving plate, and in this state, the locking part and the locking plate (first locking stepped part (49) are locked). is maintained.

And from this state, if we release the suppression of knob αD.

The guide piece (421) of the left-handed tuning member (16) along with the operating member (11) is restored through engagement with the pinion (41) and the rack (4A), resulting in the state shown in FIG. Also, in this state, the main gear α01 and the driven gear SIL+ mesh with each other, so when the knob OD is rotated, the rotation is transmitted to the left-side channel selection member (16), and a preset operation is performed.

Next, the switching operation of the switching mechanism (51) will be explained.

FIGS. 7(a) to 7(a) show the operating process of the switching 40D, which is switched by one reciprocating movement of the operating member txt.

In other words, both the rotating plate and the rocking plate are tilted counterclockwise, and in this state the entire snap spring is held as shown in Fig. 7 (
In the state shown in (a), when the abutment piece (421b) provided on the left guide piece (421) moves forward and abuts against one of the abutment pieces (■) of the rotating plate (■) facing it, as shown in (b) in the same figure. As shown in , the rotation!IJl board is reversed clockwise so that the tip of its leg fits with one of the rising pieces Q', and as a result, the rotation #jJ board receives a rotational force in the clockwise direction.In this case, the above-mentioned Guide piece (
The rocking plate f14 is held in the counterclockwise tilted state as before by the pressure contact between the protruding piece 4 and the trailing edge of the rocking &!■. When the suppression is released and the guide piece (42) on the left side 1 retreats together with the operating member (11), the protrusion piece (42) retreats while slidingly contacting the side edge of the rocking plate-〇, as shown in Fig. 7ti. And the guide piece is in the 1st position on the left (with 4'J fully restored).

As shown in Fig. 7), the rear edge of the rocking plate is tilted clockwise across the left guide hole (43), and this state is maintained by a snap spring.

In this way, the switching button Iη is alternately inverted and switched in the left and right direction every time the operation member fi+ reciprocates, and the selection members Q61. (16 which guide piece H21, (4
The forward state force S of 21' is relatively blocked.

Therefore, when the operating member (1) is moved forward by pressing the knob (llt-) at an arbitrary position, one of the channel selection members (16I to αe', which is in a state where it can move forward) moves together. Move forward and set the selection pieces on it.
Due to the collision and pressure contact between the storage #(21+ to (21+') and the rear edge of the moving plate (2), the stations stored in the channel selection body end to (22') are transferred to the variable tuning section (via the three countries). Reproduced.

As described above, according to the present application, at the locking point between the lock plate and the locking piece, which is the reference for setting the position of the tuning piece during the tuning operation and the preset operation, the locking piece is screwed into the locking part. At t-1, it is attached to the shaft of the tuning member (=J is cut, so %
When the locking piece is locked with the lock plate, there is no risk of it tilting in the axial direction as in the conventional case, and the locking state is always maintained constant, so there is no risk of inducing channel selection errors. It is possible to provide a commercial air conditioner with a total weight of 1 gram.

[Brief explanation of the drawing]

The drawings show the actual dimensions of this machine. Fig. 1 is an overall plan view with some parts omitted, Fig. 21% is a sectional view taken along line I-I of Fig. 1, and Fig. 3 is a cross-sectional view of Fig. 1. FIG. 4 is a partial plan view of the support frame with the lock plate 11iii attached. Figures 5 and 6 are partial plan views showing the relationship between the sweeping member and the tuning material, and Figures 7 to 10 show the sliding stroke of the tuning part relative to the sliding stroke of the operating part. Stroke meeting 2
This shows another FIJ implemented with a configuration that doubles the size.
Fig. 7 is an overall plan view showing the operating process of the switching mechanism for one channel selection/1 configuration 1/11j, Fig. 8 is a partial plan view of another operating state of the selection mechanism, and Fig. 9 1 is a perspective view of the guide piece, and FIG. 1O is an exploded perspective view of the switching mechanism. In the figure, ti+ is the operating member, (21 is the shaft rod, (3) is the support piece, +51 is the switching lever, 00) is the drive gear, old) is the knob, 021 is the support frame, ([5] is the return spring, (1
61, Q61' is the channel selection member, (17L (171'U
N rod, (18+, 181'tj, ne') m-(19
), C1l'n stopper piece, (20+ , (2
01' is the driven gear, C21, (221' is the channel selection piece, (2
51, +25 Thin screw part% (J61. (261' is the locking part, it. (26 mouse is the return spring, the cabinet is the lock plate, C3Z is the engagement slit, ida a is the extra 1 edge, +32 )b is the locking step part, 034+ is the moving plate, cl■ is the variable tuning part, (40
1 is a pinion, (4D is a support piece. (421, (421' is a guide piece - (42) a, t4m
is the rack, and (J in 5fl FD cam piece) is the switching mechanism. Patent entry: Japan Technical Co., Ltd. Agent: Toshiharu Ouchi Figure 9 Figure 10

Claims (1)

[Claims] (A tuning member having a locking piece and a tuning piece that is screwed into a screw portion 11 and moves back and forth is advanced, and the tuning piece is moved in conjunction with a variable tuning unit. At the same time as pressing the plate, the locking piece is held in the forward movement state by locking the lock plate, and the push-button tuner is preset by rotating the tuning member in this state. and the channel selection member is provided with a threaded portion having a different helical direction from the threaded portion,
A push-button tuner characterized in that the locking piece is screwed into the threaded portion. (21) A push-button tuner according to claim 1, in which the rotation and forward movement of the tuning member are performed by an operating member. The push-button tuner according to item 1 or 2 (4). A push-button tuner according to Feng Xiang, paragraph 2 or paragraph 3.