SU1118956A1 - Wrist watch winding mechanism - Google Patents

Abstract

MECHANISM WATCH MECHANISM MECHANISM, containing central inertia load and planetary gearbox. characterized in that, in order to increase reliability and reduce dimensions, the planetary gear is mounted on an inertial load and is made in the form of central movable and fixed wheels and two satellites, each of which consists of two coaxial wheels with a number of teeth differing by at least one connected by multidirectional overrunning clutches, with the satellite wheels having a larger number of teeth installed with the possibility of one of them interacting with the movable central wheel and the other with the fixed center Wheel center.

Description

00

coke

A) The invention relates to instrumentation and can be used in a one-hour industry. The known mechanism of the automatic spring supply of a wristwatch with a centrally located inertial load, gearbox and motion converters - overrunning clutches 1 3. However, the winding wheel system protruding above the bridges - the main clock mechanism, has large height dimensions and eliminates the possibility of positioning the mass of inertial load c. within the main caliber of the clock mechanism. : Closest to the proposed by the technical nature of the mechanism of winding wrist watches with central inertial cargo and planetary gear 120. A disadvantage of the known mechanism of winding is low reliability and significant dimensions in height. The purpose of the invention is to increase reliability and reduce size. To achieve this goal, the wristwatch mechanism containing the central inertial load and the planetary gearbox is installed on the inertial load and executed in the form of central movable and fixed wheels and two satellites, each of which consists of. of two coaxial wheels with a number of teeth, differing at least one, and connected by multidirectional overrunning clutches, with satellite wheels having a larger number of teeth. installed with the possibility of interaction of one of them with a movable central wheel, and the other, respectively, with a fixed central wheel. FIG. 1 shows the watch mechanism with planetary winding, the plan view in FIG. 2 - planetary mechanism under the plant, bottom view; in fig. 3 - section A-A of FIG. one. . The winding mechanism consists of a fixed 1 and a movable 2 central wheels, inertial load 3, on which satellites are mounted, consisting of two coaxial wheels 4,5 and 6,7, Wheels 5 and: 7 have the ability to free- i H9 to rotate on axes 8 The coaxial wheels are interconnected by overrunning clutches, for example, with the wedge friction bodies 9. The clutches differ from each other in different directions of travel. . . The wheels of the satellites, having a large number of teeth, are engaged with different central wheels. The tooth profile of the satellite wheels is corrected. From the vertical displacement, the satellites are held by pads Y. The central wheel 1 is pressed onto the stationary sleeve 11, the flange of which is attached to the main mechanism 12. The central wheel 2 sits rigidly on the tribe 13, which is mounted for free rotation relative to the sleeve 11 and interacting with the drum wheel 14 through tribe 15. Slip bearing of inertial load — axis 16 is pressed into the spoke of inertial load 3 and can freely rotate in sleeve 11. From the vertical displacement, axis 16 is fixed by a lock 17. Mechanism winding watches. works as follows. When the inertia load 3 rotates clockwise (Fig. 1), the wheels of the satellites 4 and 6, rolling on the stationary central wheel 1, also rotate clockwise. After the wedges happen: the overrunning clutch of one of the satellites, both its wheels 4 and 5 will rotate as a single unit. Since the wheel 4 has more teeth than the wheel 5, the central wheel 2 rotates clockwise. The overrunning clutch of the other satellite is operating in idle mode, since the relative movement of the coaxial wheels of the satellite has the opposite direction and curse is impossible. During the rotation of load 3 against the clock wheel 4 and 6, wrapped around the central wheel 1, they rotate clockwise. If the second satellite clutches the overrunning clutch, both its wheels 6 and 7 will spin as a single unit, and since KOfiece 7 has more teeth on the wheel 6, the center wheel 2 will still rotate in the aces arrow. The overrunning clutch of the first satellite in this case operates in the paddle mode.

3

Thus, by changing the direction of rotation of the inertial load. 3, the central wheel 2, the associated drum wheel 14 rotates in one direction, thereby performing the winding of the spring motor.

Thus, simultaneously with the transducer of the direction of rotation of the inertial load, there is a significant reduction of rotation within the planetary gearbox itself, which eliminates the need for an intermediate reduction gear, essentially increasing the reliability of the winding mechanism as a whole.

Installing the planetary gearbox 5 on the inertial load and using the latter as a carrier makes it possible to reduce the overall height, simplify the assembly of the winding mechanism and significantly increase the inertial mass of the load both by means of the satellites and by thickening the inertial load spokes in the space between the satellites.

ten

YU

Claims (1)

Wrist Watch Winding Mechanism, comprising a central inertial load and a planetary gear, characterized in that, in order to increase reliability and reduce dimensions, the planetary gear is mounted on an inertial load and is made in the form of central movable and fixed wheels and two satellites, each of which consists of two coaxial wheels with the number of teeth differing by at least one, connected by multidirectional overrunning clutches, and the wheels of the satellites having a larger number of teeth are installed with possibly Tew interaction of one of them with the movable central wheel, and the other - with a stationary central wheel. 00 with trunk □ 5 t 1118956 ϊ