JPS5929391Y2 - Arm mechanism in push-button tuner - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a reading mechanism for a push-button tuner, which is sufficiently thin at least in the area where the push-button reading mechanism is installed, and which can be used in combination with a receiver and other equipment as appropriate. The present invention provides a reading mechanism for a push-button tuner suitable for use in a push-button tuner, and furthermore, is used to ensure smooth and reliable fixing operation of the frequency regulating member.

In a push-button tuner, if the push-button reading area is made thinner, it can be suitably combined with a receiver or other equipment and installed compactly for use in a vehicle or other applications, which has a great practical effect. .

Therefore, for this purpose, various proposals have been made in the past regarding a thinner push-button tuner in which the plate surface of the push-button reading board is parallel to the curved surface of the tuner.

However, in the conventional thinned tuner, a circular hole into which the shaft support of the frequency regulating member is fitted is formed in the reading section itself, which is parallel to the instrument base, and a cutting part connected to the circular hole. This cut portion was compressed to narrow the circular hole and fix the shaft support of the frequency regulating member.

In the structure of such a conventional thinned tuner, the reading part must have a sufficient thickness to ensure strength during the pressing operation of the reading part, and it is necessary to have such a thickness. The fixing operation of the frequency regulating member that narrows the circular hole formed in the reading chamber cannot necessarily be carried out smoothly and easily.

In particular, in order to facilitate the narrowing of the circular hole while ensuring strength to withstand the indentation pressure, it is necessary to make one side of the circular hole of the reading hall wider and the other side narrower. First, there is a serious drawback in that the shaft portion of the frequency determining member is clamped from only one side during the fixing operation, and the shaft portion is slightly biased, causing a deviation in the frequency to be set.

The present invention was devised after further study in view of the above-mentioned circumstances, and it makes it possible to further reduce the thickness of the thinned product as described above, and also has a preferable assembly. In addition to observing the strength relationship and smoothing the fixing operation of the frequency regulating member,
We have succeeded in eliminating deviations in the frequency to be set due to biasing of the frequency regulating member during the fixing operation.

That is, to explain the specific embodiment of the present invention shown in the attached drawings, the mechanical relationship of the push button tuner as a whole is as shown in FIGS. 1 and 2. (generally about 5) push button reading boards 1 each having a push button 6 are arranged at regular intervals with their plate surfaces parallel to the surface of the table 10.
The configuration of each push button reading mechanism arranged in this way is as follows.
~ As shown in Figure 5.

That is, the fixing piece 2 for fixing the frequency regulating member 3 is overlapped with the reading part 1, and the fixing piece 2 is arranged in parallel at the tip part 2d, so that the locking hole 1d of the reading part 1, 1
d, one of these locking holes 1ct and lct has a long hole shape, and the other has a perfect circular shape.

That is, the position of the fixing piece 2 is determined in the perfect circular locking hole 1d,
The long locking hole 1d prevents the mating piece 2 from rotating.

However, on the longitudinal center line of such fixing piece 2, there is a fitting hole 2 for receiving the shaft support 3f of the frequency regulating member 3 described above.
a, and a cut portion 2b is formed on the center line in the longitudinal direction from the fitting hole 2a, and a circular hole portion 2e for buffering the pinching pressure of the cut portion 2b is provided in succession at the center of the fitting hole 2a. However, the clamping parts 2c, 2c are provided opposite to each other on the open end surface side of the end of the cut part 2b that is inserted into the push button 6, thereby forming the fixing piece 2 substantially symmetrically in the width direction.

Further, the push button 6 attached to the base end of the above-mentioned reading club 1 is provided with an engaging part 4a that applies a clamping force evenly from both sides to the clamping parts 2c, 2C.

4a is attached to the slide member 4.

As shown in the figure, the distal end of the frequency regulating member 3 serves as the operating section 3a, but a pivot hole 3b is formed at its base end. A guide hole 15 formed in the table 10 receives the head 5b of the pivot 5, and protrudes from the insertion hole 11 of the reading 1 to the back surface of the reading 1. As shown in FIG.
c, and is fitted into an engagement hole 3c coaxial with the pivot hole 3b of the frequency regulating member 3 in a relationship that prevents rotational movement.

Furthermore, in this illustrated example, at the tip of the reading board 1 there is provided a mode 1 for operating the switch changeover plate 7 as shown in FIG.
2 is provided and engages with the operating hole 7a of the switching plate 7, and a spring mounting part 13 is formed on one side of the tip of the reading board, and a spring mounting part 13 is formed between the spring mounting part 13 and the device stand 10. A spring 14 for returning the reading 1 is interposed.

To explain the operation of the device according to the present invention as described above, in the assembled state shown in FIG.
Since the clamping parts 2c and 2c are not compressed by the engaging parts 4a and 4a of the slide member 4 that slides integrally with the push button 6, the frequency regulating member 3 rotates appropriately and the operating part 3a The setting position can be freely changed.

From this state, by pushing the push button 6 in the direction of the arrow in FIG.
, 'lc are equally pinched from both sides, and the pinching parts 2C, 2
C is displaced by the same dimension.

In addition, such a clamping operation is performed at the long cut section 2b which extends from the circular hole section 2e to the insertion section into the push button 6.

Therefore, the fixing operation of the frequency regulating member 3 can be carried out very smoothly and easily with a light force.
Since the shaft support 3f is evenly compressed by both sides of the fitting hole 2a, the frequency regulating member 3 can be read from the reading section 1 and the fixing piece 2 without being biased to one side and the frequency to be set does not deviate.
As shown in FIG. 5, it can be immobilized on.

As explained above, according to the present invention, the frequency regulating member 3
The shaft support 3f is inserted into the fitting hole 2 of the fixing piece 2 attached to the reading assembly 1.
a, and the fixing piece 2 is formed approximately symmetrically in the width direction, and the clamping parts 2c, 2c on both sides of the opening end of the fixing piece 2 with respect to the cut part 2b are operated together with the push button 6 by pushing the opening 1G. Since the shaft support 3f is clamped and fixed by uniformly compressing and displacing the fixing piece 2 in the width direction by the sliding member 4, the shaft support 3f is located at both sides of the fitting hole 2a. The fixing operation can be carried out reliably without causing any deviation in the frequency to be set because it is evenly compressed and fixed without being biased.

Furthermore, since the fixing action is performed by the fixing piece 2 attached to the reading board 1, the strength of the reading board 1 is not reduced in any way.

Furthermore, the cut portion 2b formed in the fixing piece 2 is a long one extending beyond the fitting hole 2a, starting from the circular hole portion 2e, and reaching the opening end inserted into the push button 6 of the fixing piece 2. Therefore, the above-mentioned fixing operation for the frequency fixing member can be performed smoothly, and the fixing force can be strongly obtained at the fitting hole 2a portion. It is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a general plan view of a push-button tuner using a reading mechanism according to the invention, Fig. 2 is a cross-sectional view thereof, and Fig. 3 is an illustration of the present invention. FIG. 4 is a perspective view showing the disassembled state of the components of the reading mechanism according to the invention; FIG. 4 is a perspective view showing the assembled state and the frequency regulating member released state;
The figure is a perspective view showing the clamping state of the fixing piece by the push button and the slide piece. In these drawings, 1 is the reading hole, 1d is the Sun Tzu hole, 2 is the fixing piece, 2a is the fitting hole, 2b is the cutout,
2c is its clamping part, 2d is Sun Tzu, 2e is a circular hole part, 3 is a frequency regulating member, 3a is its operating part, 3b is its pivot hole,
3c is its engagement hole, 3f is its shaft support, 4 is a slide member, 4a is its engagement portion, 5 is a pivot, 5a is its tip,
5b is its head, 5c is its engaging portion, and 6 is a push button.

Claims (1)

[Scope of utility model registration request] In a device in which a reading plate with a flat plate surface and a push button is disposed on the tableware base, the shaft support of the frequency regulating member is inserted into the fitting hole of the fixing piece attached to the reading plate. The cut portion formed on the fixing piece extends beyond the above-mentioned fitting hole to form a starting point in the inner direction, and the open end thereof is formed as an insertion portion for the push button, and a Clamping parts for clamping the fixing piece in the width direction are provided oppositely, and the fixing piece is formed substantially symmetrically in the width direction, and the engaging part of the slide member that is slid by the push button is pressed against the clamping part. A reading mechanism in a push button tuner characterized by facing the pressure part so as to act from both sides.