US 7,404,669 B2 · Clockwork movement

Abstract

The clockwork movement comprises a crown (12) connected with at least one element of the movement through a connecting organ. It is provided with a selection device (13) that includes a blocking device (15) provided with two blocking spring blades (26, 27) cooperating with a set of teeth (28) of crown (12). This blocking device allows rotation of the crown to be blocked in a first direction, and to be permitted in a second direction, in a predetermined position of a control lever (30) selectively acting on the first or second of these spring blades (26, 27) through a sector (31). When this lever (30) is turned into a second position, rotation of the crown is permitted in the first direction but blocked in the second direction. One thus obtains a movement in which the direction of rotation of crown (12) is selected by the user by his prior action on selection device (13).

Claims13

Dependent claims

A clockwork movement having a rotary organ for an external manual control that is connected via at least one connecting organ to at least one element of movement, and can be rotated in two opposite directions, comprising:

at least one selection device associated with the rotary organ and designed so as to take up at least two different positions including a first position in which the selection device permits rotation of the connecting organ in a first direction but makes impossible the rotation of the connecting organ in a second direction, and a second position in which the selection device makes impossible the rotation of the connecting organ in the first direction but permits rotation of the connecting organ in the second direction.

Dependencies are inferred from the claim text.

Clockwork movement

Life of this patent

Clockwork movement

Life of this patent

Abstract

Claims13