SU860289A1 - Vernier dial device for radio receiving devices - Google Patents

Description

one

The invention relates to radio engineering and can be used in radio receiving devices.

A vernier device is known comprising input and output shafts with pulleys connected by a flexible connection p2.

However, the known device is inconvenient in operation, since when tuning the receiver to highly separated stations it is necessary to rotate the knob for a very long time, settings.

The purpose of the invention is to improve the operational capabilities. The goal is achieved by the fact that the vernier device containing the input and output shaft is associated with a flexible coupling. Equipped with an additional shaft with a pulley, located between the input and output shafts at an angle to kim, we take the pulley of the additional shaft connected with the pulleys of the input and output shafts of the above-mentioned bend 2

With the input shaft rollers mounted on the shaft freely with the possibility of alternately engaging with it.

FIG. 1 is a diagram of a vernier device; FIG. 2, section A-A in FIG. one.

The vernier device contains 1e installed on the board 1 brackets 2, the input is placed in KOTOfAtx

10, the shaft 3 with the adjustment knob 4 and the pulleys 5 and 6, which are free, are mounted on the shaft 3 with the possibility of alternately coupling with the wheel. Shaft 3, 5 has slots 7, interposed between pulleys 5 and 6. Inside shaft 3, pin 8 and spring 9 are placed. Pin L protrudes from shaft 3 on the side of handle 4 and has T-shaped fingers 10 placed in

20 slots x 7. On board 1, there is a second pair of brackets P, in which the output shaft 12 is installed with a pulley 13. Auxiliary shaft 14

with a pulley 15 is installed in the brackets 16. Moreover, the axis of the additional shaft 14 is directed at an angle of the input shaft 3. Bending of the coupling SZ- / asik 17 is dressed successively on the pulleys 5, 6, 13 and 15.

The device works as follows.

In case the pin 8 is not recessed, the rotation of the handle 4 is transmitted to the shaft 3, and the pulley 6 through the fingers 10 from it. This causes the rotation of the pulley 13 and the output shaft 12 slowly. If the pin 8 is recessed, the rotation of the handle 4 is transmitted to the pulley 5, the diameter of which is larger than the diameter of the pulley 6, and the output shaft 12 V4) ai1e. Faster. If necessary, rebuild from one stankshchi to another, located next to each other, rotate the knob of the embedding pin 8.

In the case of a rearrangement to a far-away station, the accelerated tuning is first performed by rotating the knob 4 with the recessed pin 8, and then when Approaching the tuned station, the pin 8 is not sunk. The insertion of the pin 8 is carried out

with the finger of the hand, which rotates the handle 4.

invention formula

A vernier device for radio receivers containing both output shafts with pulleys interconnected by a flexible connection, which is so that, in order to improve operational capabilities, it is equipped with an additional shaft with a pulley placed between the input and output shafts at an angle to them, the auxiliary shaft pulley is associated with the pulleys of the input and output shafts by a flexible connection, and the pulleys of the input shaft are mounted freely on it with the possibility of alternating coupling with it.

Sources of information taken into account in the examination

1, USSR Author's Certificate No. 314289, cl. H 03 J 1/00, 09/07/71 (prototype).

Aa

I

.I

Claims (1)

5 claims A vernier device for radio receivers containing input and output shafts with pulleys interconnected by a flexible connection, characterized in that, in order to improve operational capabilities, it is equipped with an additional shaft with a pulley placed 15 between the input and output shafts at an angle to them, and the pulley of the additional shaft is connected with the pulleys of the input and output shafts by the mentioned flexible connection, while the pulleys of the input shaft 2Q of the shaft are mounted freely with the possibility of alternating engagement with it.