JPS5834980B2 - Core operating mechanism in push-button tuner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the creation of a core operating mechanism in a push-button tuner, which allows the push-button tuner to be made thinner than the push-button operating mechanism without changing the configuration of the core operating mechanism. In addition, the coil setting position and the core moving operation direction can be selected as appropriate, and a push button tuner that meets each specification can be easily and compactly provided. This is what I did.

In a push-button tuner, it is essential to move the core in and out of the coil by operating the push button and rotating the tuning shaft, and for this purpose, the core is arranged in conjunction with the push-button operation as described above. It is necessary to move the core moving member.

However, the mechanism conventionally used to operate such a core moving member is a link mechanism, and the length and other design conditions of such a link mechanism are specified, and it is inevitably difficult to press a button. The setting relationship of the core moving member and the coil member for moving the core in and out of the mechanism must be constant.

Moreover, such a push-button tuner itself forms part of a radio receiving mechanism, and especially today it is usually used in conjunction with a tape recorder or other receiving or reproducing mechanism. For this purpose, it is necessary to make the structure thinner, and depending on the type of equipment to be connected and the conditions in which they are installed, the push button operation mechanism of the coil body and core moving body may be It is clear that a suitable modification of the arrangement position is advantageous, especially in cases where a compact mechanism is required, such as in on-vehicle equipment.

In other words, in the conventional system as described above, it is necessary to fundamentally change the design of the core operating mechanism as described above for each such change condition, which is not only troublesome in terms of design, but also There are also unavoidable disadvantages such as major changes in production lines that are constructed based on specific design conditions.

The present invention was created through research to eliminate the disadvantages of the conventional ones as described above, and the embodiment thereof will be described with reference to the attached drawings.
As shown in FIG. 1, the push-button arm 1, which has a base end thereof, is disposed with its plate surface parallel to the bottom surface 10a of the machine frame 10. As shown in FIG. 1 for the rightmost push button arm, the frequency regulating body 2 is attached with a pivot 3, and the fixed ends of the link members 4, 4 are pivoted on both sides of the pivot 3. The free ends of the link members 4, 4 are pivotally connected to an actuating plate 6 which slides parallel to the bottom plate 10a of the machine frame using a mount 5.
Separately) a valve plate γ and a restraining piece 3 are attached to the push button reading club 1,
The next station 8 is pushed along with the push button 21 (thereby, the frequency regulating body 2 is pushed in by the tip of the valve plate 7).
is fixed, and the link member 4, to which the operator 9 is disposed oppositely,
4 to slide the actuating plate 6 in the left-right direction.

A first rank 16 is formed extending from one end of the actuating plate 6.
As shown in FIG. 2 or 3, the rack 16 engages with a gear 11 that is rotatably provided on the bottom plate 10a of the machine frame in a balanced manner. The coaxial gear 11a provided as shown in FIG.
This second rack 15 is engaged with the rack 15 of the coil 1.
Core moving unit 14 for moving the core in and out of 2
The core moving body 14 is guided by a guide rod 13 provided on the machine frame 10, and as shown in the figure, the guide rod 13 runs in the same direction as the second rack 15. .

In the illustrated example, reference numeral 17 denotes a rotation operation shaft, and this rotation operation shaft 17 rotates a pinion gear 19 via a universal joint 18, and the pinion gear 19 rotates a core as described above via a crown gear 20. The moving operation of the moving body 14 is well known, and in order to switch between the core moving operation using the rotary operation shaft 17 and the core moving operation using the push button as described above, a switch is formed on the front surface of the machine frame 10. A clutch operation piece 23 is slidably provided on the rising portion 10b, and is configured to perform an appropriate switching operation on the latch portion 22 in conjunction with the push button operation.

The core moving member 14 has an extending portion 14a formed on one side of the core mounting portion, and a guide portion 25 that engages with a side portion of the coil frame 24.
is provided, and a hanging chain 1 hanging downward is provided on the front side.
The rack portion 15 is formed to be bent laterally below the guide rod 13 from the portion 4b.

To explain the operation of the device according to the present invention as described above, the gear 11 is activated by operating the push button operation mechanism consisting of the push button reader 1, the operating plate 6, and the link pieces 4, 4.
It is clear that the tuned tuning state can be configured by operating the core moving unit 14 through the gears 11 (and 11a) and moving the core in and out of the coil. ), the core moving body 14 can be freely engaged with the rack 15 in any direction, and therefore the setting direction of the core moving body 14 and the coil 12 can be freely selected for the push button operation mechanism as described above. For example, even if the coil 12 is in the condition shown in FIG. 1, the rack 15 is not shown in the figure with respect to the gear 11a even under conditions in which the core attached to the front side is moved in and out in the rear direction. A similar operation can be obtained by engaging the racks 16 and 15 on opposite sides, and the relationship between the racks 16 and 15 can be any arbitrary shape including not only perpendicular or parallel shapes as shown in the figure but also various inclined shapes. This makes it possible to easily and appropriately create a compact complex device that is truly integrated with the various devices mentioned above that this type of push button control device should be compatible with.

Note that the gear 11 may be one piece as shown in Fig. 2, but in some cases, gears 11a with different diameters may be installed coaxially as shown in Fig. 1 or 3, and a rack may be attached to the - side of the gear 11a. 15
, the rack 16 can be engaged with the other, and by doing so, an appropriate expansion (or reduction) can be achieved between the momentum of the actuating plate 6 moved by the push button operation and the momentum of the core moving body 14. It is also easy to understand.

According to the present invention as explained above, the bottom surface of the machine frame 10a
Since the actuating plate 6 is provided parallel to the machine frame bottom surface 10a and the gear 11 that engages with the first rack of the actuating plate 6 is also provided parallel to the bottom surface 10a of the machine frame, the structure of this part can be made sufficiently thin. As shown in FIGS. 2 and 3, the second rack 15 of the core moving body is also engaged with the gear 11 as described above, so a coaxial gear 11 is also used. Even if this kind of push button U is secured while maintaining the above-mentioned thinness,
It is easy to change the settings of the push button operation mechanism, core moving body, and coil in the U device as appropriate, and in other words, it is possible to manufacture and assemble a variety of push button tuners that correspond to the shape and size of the equipment to be handled. This invention is industrially highly effective because it can be achieved without changing the line, thereby providing a truly integrated and compact objective mechanism at an appropriate and low cost.

[Brief explanation of drawings]

The drawings show embodiments of the invention, and FIG. 1 is a plan view showing one example of the invention. FIG. 2 is a side view showing a modified example of the gear portion, and FIG. 3 is a side view corresponding to FIG. 2 of the gear portion shown in FIG. 1. In these drawings, 1 is a push button reading board, 2 is a frequency regulating member, 4 is a link member, 6 is an operating plate, 10 is a machine frame, 11 and 11a are gears, 12 is a coil, 13 is a guide rod, 14 is a core moving member, 15 is a second rack thereof, and 16 is a first rack of an operating plate.

Claims (1)

[Claims] 1. An actuation plate that is slidably operated by a push button operation mechanism is provided parallel to the bottom surface of the machine frame, a first rack is formed on the actuation plate, and this first rack is connected to the gear provided parallel to the bottom surface of the machine frame. A core operation mechanism in a push-button tuner, which is engaged with a second rack in a core moving member body to which a core that can be moved in and out of a coil of this gear is attached.