JPS6216026Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a television tuner device, and provides a television tuner device that has a simple structure and is easy to assemble.

FIG. 1 shows a conventional television tuner device. In FIG. 1, 1 is a box-shaped chassis, 2 is a reinforcing plate fixed to the chassis 1 by fitting or soldering, and this reinforcing plate 2 has a notch (not shown) extending from one side to the center. ) is formed. A main shaft 3 passes through a hole in the front plate 4 of the chassis 1 and is inserted into a notch in the reinforcing plate 2. Reference numeral 5 denotes a wire spring attached to the reinforcing plate 2, and the elastic force of the wire spring 5 causes the main shaft 3 to be pressed and supported by the tip of the notch in the reinforcing plate 2. A cylindrical fine adjustment shaft 6 is inserted into the main shaft 3 in advance, and a flange 7 is formed at the rear end of the fine adjustment shaft 6.
A leaf spring 8 is positioned by a protrusion 9 on the front plate 4, and the fine adjustment shaft 6 is biased by the leaf spring 8 located between the flange 7 and the front plate 4. 10 is main shaft 3
It is an insulating cap fitted to the tip of the

However, in the above conventional example, the main shaft 3
The plate surface (reinforcing plate 2) that holds the fine adjustment shaft 6 with the wire spring 5 must be provided separately from the front plate 4 that holds the fine adjustment shaft 6, which complicates the structure and makes it difficult to fix the reinforcing plate 2 and chassis 1. In addition, there was a drawback that the reinforcing plate 2 had to be bent.

The present invention eliminates the above-mentioned drawbacks of the conventional art, and one embodiment of the present invention will be described below with reference to FIGS. 2 to 4.

In FIGS. 2 to 4, 11 is a chassis, and the front plate 12 of this chassis 11 has a notch 1 extending from one side to the center, as shown in FIG.
3 is formed. 14, 14' are the front plate 12
Both ends of the wire spring 15 are attached to the holes 14, 14'. Reference numeral 16 denotes a main shaft disposed at the tip of the notch 13, and this main shaft 16 is urged against the wall at the tip of the notch 13 by the elastic force of the wire spring 15. A cylindrical fine adjustment shaft 17 is inserted into the main shaft 16, and a cam portion 18 having a larger diameter than the fine adjustment drive shaft portion 17' is formed at the rear end of the fine adjustment shaft 17. Reference numeral 19 denotes an elastic plate in which a hole 20 is formed through which the fine adjustment shaft 17 passes, and this elastic plate 19 is curved. 2
Projections 1 and 21' are integrally formed on the outer circumference of the elastic plate 19, and these projections 21 and 21' are bent approximately 90 degrees. 22, 22' are projecting pieces 21,
21'. 23 and 23' are through holes formed in the front plate 12;
Projections 24 and 24' are integrally formed on the hole walls of holes 3 and 23'.

Insert the elastic plate 19 into the fine adjustment shaft 17, and
1 and 21' are connected to the through holes 23 and 21 of the front plate 12, respectively.
23', the holes 22 of the projecting pieces 21, 21',
22' engages with the protrusions 24, 24'. At this time, the elastic plate 19 comes into contact with the end surface of the cam portion 18 of the fine adjustment shaft 17, and the fine adjustment shaft 17 is urged by the elastic force of the elastic plate 19 and comes into contact with the front plate 12. Here, when the elastic plate 19 is inserted into the fine adjustment shaft 17 by engaging it, the through holes 23 and 2 of the chassis front plate 12 are inserted.
3', the protrusions 21, 2 of the elastic plate 19
1' holes 22, 22' engage with protrusions 24, 24' in through holes 23, 23' of the chassis front plate 12,
Assembly work is easy. By engaging them, there is no structural movement after assembly, the elasticity of the elastic plate relative to the fine adjustment shaft is stabilized, and the rotation of the fine adjustment shaft is stabilized. Effects such as this will occur. 25 is a reinforcing plate attached to the chassis 11, and 26 is an insulating cap fitted to the tip of the main shaft 16.

As described above, according to the present invention, the main shaft and the fine adjustment shaft can be supported on the front plate of the chassis, and the fine adjustment shaft is biased by a single elastic plate, which simplifies the structure and makes it easier to assemble. This has the advantage that the work is easy, and furthermore, the rotation of the fine adjustment shaft is stabilized.

[Brief explanation of the drawing]

FIG. 1 is a side view of the main parts of a conventional television tuner device, FIG. 2 is a side view of the main parts of a television tuner device according to an embodiment of the present invention, and FIG.
The figure is a front view of the same, and FIG. 4 is an exploded perspective view of a part of the apparatus. 11... Chassis, 12... Front plate, 13...
Notch, 14, 14'... hole, 15... wire spring,
16...Main shaft, 17...Fine adjustment shaft, 17'...Fine adjustment drive shaft portion, 18...Cam portion, 19...Elastic plate, 20...Hole, 21, 21'...Protrusion piece, 22,
22'...hole, 23, 23'...through hole, 24,2
4'...Protrusion, 25...Reinforcement plate, 26...Insulating cap.

Claims (1)

[Scope of utility model registration request] A cylindrical fine adjustment shaft with a cam portion having a diameter larger than the fine adjustment drive shaft portion formed at the end is inserted into the main shaft rotatably supported by the front plate of the chassis, and the fine adjustment shaft is inserted. A curved elastic plate with a hole formed therein is inserted into the fine adjustment shaft, and a protrusion formed on the elastic plate is engaged with a through hole formed in the front plate of the chassis, so that the elastic force of the elastic plate is applied. Therefore, the television tuner device comprises the fine adjustment shaft biased against the front plate.