SU47937A1 - Anchoring for balance watches - Google Patents

Description

Anchors, cylinders, duplexes and chronometers are known in the watch technique. Each of these moves has certain disadvantages, such as a stop on a finger, friction at rest, and an excessive sensitivity to shocks.

According to the invention, an anchor stroke is proposed, the performance of which is intended to eliminate the drawbacks observed in the known watch moves. A distinctive feature of such an anchor stroke is that, in order to prevent stopping, eliminating friction and excessive sensitivity to jerks, the travel wheel has Two rows of teeth (rest and impulse) directed in one direction and intended to interact through the anchor with the knee neck, which is equipped with an axis of balance with a roller mounted on it carrying a pulsed stone.

FIG. 1 shows a schematic drawing of a perspective view of the anchor stroke; , figs. 2-6-different moments of the stroke; FIG. 7 is a cross-section of the knee neck; and FIG. 8-top view of the anchor stroke with the rotation of the balance axis in a clockwise direction; FIG. 9 same with counterclockwise rotation. S

(86)

The anchor stroke for the watch consists of three main parts: balance axis 1 (not shown in the drawing); the running wheel 12 and the anchor 6 located between them. Axis 1 of the balance, in addition to the usual roller 4 with a pulsed stone 5, has a knee 2 located above this roller with small shoulders. The neck of the 3 knee has an el. Ipsny section. The presence of knee 2 on the balance axis of this anchor stroke distinguishes it from the balance axes in the known watch movements.

Anchor 6 with palettes 7 and 8, mounted pivotally on axis 11, has a short tail-shaped fork shaped with horns 9 and 10, which embraces the neck 3 of the balance 2 OCR 1 of the balance.

The travel wheel 12 enters the interaction with the palettes 7 and 8 of the anchor of the bis an impulsive stone 5 of the roller 4 of the balance axis 1. This wheel, mounted on the axis 13, has two rows of prismatic teeth directed in one direction.

The row of teeth located on the upper surface of the rim of the running wheel 12 is rest teeth. This row of teeth interacts with the pallet 7 and 8 anchors. Since these teeth are shaped and sloped in English, they provide free fall and attraction of pallet 7 and 8. A number of teeth fixed on the lower surface of the rim of the travel wheel are teeth of an impulse. They occupy an intermediate position shifted by half a step in relation to the rest teeth and are made with a slope and with a wider base. Such an embodiment of the teeth of the lower row ensures the correct falling of them onto the impulse stone 5 of the roller 4, interacting with this number of teeth. Teeth; rest and impulse can be located around circumferences of different diameters, which is a matter of calculation depending on the strength of the impulse and iridescence. The axles 13 of the running wheel, the 11-anchor and the 1-balance are located on the same straight line and in the same vertical plane. Anchor with its pallet 7 and 8 covers two steps of the teeth of the traveling wheel. Such anchoring of the anchor 6 with the running wheel 12 and with the neck 3 of the elbows 2 of the balance axis 1 gives a quick shifting of the anchor fork, ease of operation of the anchor pallet and saves the balance vigor with maintaining its amplitude constant.

Giving ellipse to the neck 3 knees 2 balance axes 1 ensures reliable prnt zhku and the rapid fall of the pallet 7 and 8.

The anchor 6 in this execution of the anchor stroke is both a movable and a moving part.

The work of the anchor stroke proceeds as follows. When the balance is oscillated counterclockwise, the anchor 6, controlled by the knee 2, delays the lateral wheel 12 with the pallet 7 and 8 in the state (Fig. 2).

At the next moment, when Bilka shifted the knee 2, the axle 1 of the pallet 7 and 8 of the anchor 6 descended, resulting in a small fall of the travel wheel 12. This fall ensures that the impulsive stone 5 between the two teeth (impulse) of the lower row on the driving wheel (Fig. 3). At the same time, a small impulse to the balance is provided by the action of plugging anchor 6 onto knee 2 of axis 1 (Fig. 3 and 4). When the balance fluctuates in the opposite

side, i.e. counterclockwise, the following will occur. The anchor 6, by acting on its fork of the knee 2, will produce a large drop in the travel wheel 12 and will report the main impulse to the balance (Figs. 5 and 6).

With such an oscillation of the balance, the impulsive role of the anchor 6 will be reduced to zero, why a timely large fall of the driving wheel 12 will occur.

Roller 4 with a pulsed stone 5 is located in the plane of a number of teeth on the lower surface of the rim of the traveling wheel 12.

The impulse stone 5 of the roller 4 and the knee 2 of the balance axis are located relative to each other at a certain angle, with the knee 2 leading in front, and the impulsive stone being retracted.

In practical implementation, this angle should be on the order of 15-14,5 °. so that when the state of the rest of the traveling cholera is set by the output palette 8 and the tooth a (Fig. 2 and 3) and after the fall of the traveling wheel, which received rest from the inlet pallet 7 through the last engagement with the rest 6 tooth (Fig. 4), The stone 5 must move in an arc without hitting the two adjacent prongs of the pulse (shown in Fig. 3 and 4 by the symbol). When the balance oscillates counterclockwise, until the impulse tooth drops, in order to communicate the main impulse, the stone 5 of the roller, on the contrary, must fit under one of the impulse row of teeth (Fig. 5). This interaction depends both on the relative angle of the impulse stone 5 and the knee 2 axis 1, and on the depth of the course, the length of the pallet 7 and 8 and the path.

To summarize the work of the stroke, you can disengage it as follows: the balance, having received the main impulse, ends the oscillation directed counterclockwise; At this time, the knee of the balance axis shifted the fork of the anchor 6 to the right. In this position, the exit pallet 8 is lowered and the rest is snug under the tooth. The wheel 12 is stationary. After this, the balance acquires a clockwise oscillation; The knee 2 at the same time throws the plug of the anchor 6 to the left. The equilibrium position of the balance of the tooth rest publishes on the entrance palette 7 cor. The consequence of this is a small drop in the wheel. At the same time, the tooth, slipping along the plane of the exit pallet 8, causes the anchor horn 10 of the fork to deflect the knee 2. The latter imparts a small impulse to the balance. At the same time, the impulse stone 5 passes through the freely adjacent impulse teeth. The balance from the oscillation clockwise goes to the oscillation counterclockwise (Fig. 5) and with its living force throws the fork of the anchor 6 to the right and at the moment of its equilibrium pulls out the inlet pallet from under the tooth, freeing the running wheel.

At that time, when the impulse stone 5, which in its movement is advancing relative to the movement of the traveling wheel, will fit the impulsive tooth of the running wheel 12, it will force the last-W-,

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It will inform the main impulse of the balance, after which it will stop when the tooth falls into the output palette 8 of the anchor 6. In the future, the work cycle will proceed in the same order.

The subject matter of the invention.

The anchor stroke for a balanced watch with an anchor between the traveling wheel and the balance axis of the anchor with an inlet and outlet pallet on one arm and a fork on the other, is different, in order to prevent stopping, eliminating friction and excessive sensitivity to impulses, the running wheel 12 has two rows of teeth of rest and impulse directed along one direction and designed to interact through the anchor 6 with the neck 3 of the bend 2, which is provided with the balance axis 1, carrying the usual roller-hS with a pulsed stone.