SU32009A1 - Combination key for intercom telephony - Google Patents

Description

The intercom keys are used to control call paging to a line from a distribution control station or from one subscriber to another in a line-travel station or downstream communication when the subscribers are connected in parallel to two locations and each of them has a selector. In currently used intercom systems, keys with individual settings are used, which are mounted in special cabinets in an amount corresponding to the number of subscribers installed.

The combination key according to the invention is intended to replace a cabinet with several, for example, forty-five, individual normal selector keys.

In FIG. Figure 1 shows the key view from the side of the call disk FIG. 2- key cut; FIG. 3 - view of the internal device to.

The key consists of a calling disk 7 with

275

per user by number of subscribers. The disk is fixed on the sleeve 6 rotating on the axis P. With the sleeve 5 rigidly fastens the sleeve 8, on which the internal disk 7 and the end of the spring 5 are fixed. The other end of the spring 5 is fixed on the ledge of the device. Thus, when the crown disk 7 rotates, the internal disk 7 will rotate. When the disk 7 is released, it will return to the normal position under the action of the spring 5, which is determined by the limiter 6. On the axis 9, the lever 2 is fixed with the body bent around / end of the lever, on which there is a notch with a recess, into which the conical rod enters, which is pulled out by the spring of the button 3. This rod does not allow the lever 2 to move counterclockwise, but in the opposite direction the lever 2 does not move ozhet, the button rod extending with notch on the lever, releases the lever 2, and the under

the action of the spring tension drops into one of the conical holes 26 of the disk / and closes the disk 7 in a certain position. If lever 2, moving against the direction of the clockwise movement, approaches the pivot of button 5, it will squeeze the pivot from the disk / and with a bevel of the cutout, releasing the key and grabbing the pivot with its cutout, stopping.

On a 9-ton axis, a shzstzrenka 10 is engaged, interlocking with a sector-specific gear 77, at which the lever 2 winds the key of the key 14. The clockwork mechanism is assembled from the details of the normal spindle key that are installed between the two plates 15 and the upper 16. On the bottom plate there are contact clips 77 for switching on a combination key. On the internal disk 7 there are radial gear racks 7 of different settings, according to the number of subscribers. These slats are soldered to the disk, either flooded in it, or made into a groove in the grooves. As the drive disc 7 moves, the disc 7 with the slats 13 moves with it. The gear 10 also engages a gear 72, which serves to move the contact lever 19. The ends of the conductive springs 23 attached to the upper plate 76 are pressed onto the processes 24 of the lever 19. and connected clamps / 7. The lever 19 carries the contact brushes 25. When moving the lever, the brushes describe a circle with a radius equal to the radius of the toothed racks 13. The lever 19 has a roller 27, which, when the lever moves in the direction of movement, the clockwise arrow rises along the incline 22 on the guide arc 10 and will be along it roll, lift the entire lever 10 and retract the brush 25 from the gear racks 13, thus not obstructing the movement of the disk 7 with the rails 13. But as soon as the roller 27 comes off the guide arc 20, it will lower, take the lever 19 and bring the brushes 25 to the teeth of a n If the slats 13, If the lever 19 is now moved in the direction opposite to the clockwise movement, the brush 25 will slide along the slats in the direction from the center of the key to the circumference and give a series of current pulses corresponding to the setting of the rack.

In the case of calling any of the subscribers, for example, subscriber No. 18, the finger is inserted into the aperture No. 18 of the calling dial 7 and rotated in the direction of movement of the watch arrow. Since the pivot of the button 3 will be in the slot of the notch of the lever 2, which is in a quiet position at the location shown in FIG. 1, then the disk 7, without being delayed by this rod, will rotate, dragging along with itself through the sleeves 6 tx. 8, disk 7 with radial gear rails settings. When the finger presses against the moon-shaped notch of the lever 2, it will grab it and push it in the direction of the clockwise movement. At the same time, the pivot of the button 3 will come off the notch of the lever 2 and drop into the approached cone-shaped slot 26 of the disk 7. The disks 7 and 7 stop and the radial gear rack 18 will be in the position shown in FIG. 3. The lever 2 will move further with the finger of the hand further up to the stop - (Fig. 1). During the movement of the lever 2, it will rotate the gear 10 sitting on the same axis 9, the latter, using sector-shaped gear 77, will wind the spring of the winding key 14, and by means of the gear 72 move the lever 19 with the contact brushes 25 along the arc of a circle, Kotor coincides with the arc of the rack 18, settings. When the lever 2 reaches the stop 4, the roller 27 will jump off the 1) guide arc -20, and the 25 l brush will hit the end of the toothed rack 18 (FIG. 3). Since at this moment the winding spring of the winding mechanism is finished, when the lever 2 is released from the force of the finger, the winding mechanism 14, under the action of the spring applied, the key gear 77 of the key begins to move against the direction of the clockwise movement and by means of gear 10 will moving the gear 72 associated with the lever 19 secured thereto, the contact brush 25 will slide along the hems of the rail 18, in the direction from the center of the combined key to its outer circumference. In this case, the brush 25 gives a series of contacts with a contact spring adjacent to it, i.e. will send the corresponding setting of the subscriber number 18 current pulses. When lever 2 comes to

button 3, it will seize the button with its notch by pulling it out with its bevel from the conical disk slot. In this case, the lever 2 is locked, and the disk / vmzsta with the disk 7 under the action of the spring 5 will vnutrnet to the normal initial position, determined by the limiter, not ordered on the drawing.

The subject matter of the invention.

Claims (5)

1. A combined key for selector telephone communication of several subscribers, replacing the cabinet with a set of normal selector keys, using the arcuate gear racks 75 with different settings, mounted on a rotating disk 7, on which the brush 25 with a contact spring for sending pulses corresponding to at the construction site. 2. Use the key 7 in the key of claim 1 of the disc 7, which sits on the same sleeve with the disc 7 with the slats of the settings, to move the latter. 3. The use of a lever with a bent end and with a cut-out on it for the stem of a button 3, which serves for the factory of the spring of a driving mechanism. to displace the contact springs 25 in an arc with a radius equal to: the radius of the gear set, and to lock the disk / and the lever 2. 4. Application in the wrench according to PP. 1, 3 special buttons with a spring pushing out the rod 3, which serves to block both the lever 2 in the normal position and the disk / in the translated position, the disk being unlocked / produced by the bevelled edges of the notch at the bent end of the lever 2. 5. Application in the key according to claim 1 of the contact lever 79 of the roller 2 /, which is assigned, rolling down the slope 22 and the guide arc 20, raise the brushes 25 above the toothed racks 75 settings, and the descent from the guide arc to the passage under it , allow the brush 25 to slide. on the rack rail.