Screw-on crown for timepiece

• US 20040130971A1
• Filed: 09/29/2003
• Published: 07/08/2004
• Est. Priority Date: 10/17/2002
• Status: Abandoned Application

• Current Assignee: KS 22 SA
• Original Assignee: KS 22 SA
• Inventors: Ecoffet, Roger, Wenger, Sylvain
• Application Number:
  US10/671,792
• Publication Number:
  US 20040130971A1
• Time in Patent Office: Days
• US Class Current: 368/88
• CPC Class Codes: G04B 3/041 Construction of crowns for rotating movement; connection with the winding stem; winding stems
• CPC Class Codes: G04B 37/103 by screwing the crown onto the case

Abstract

The invention concerns a screw-on crown for a timepiece, including a head, a central portion and a lateral skirt, said head including an end face bearing a design, characterized in that the end face includes a substrate onto one face of which said design is applied, in that said substrate is mounted so as to move in rotation in said head and in that the crown further includes braking means arranged for holding said substrate in different angular orientations with respect to the head about the rotational axis of the crown.

Claims

1. A crown for a timepiece, including a head, a central portion and a lateral skirt, said head including an end face bearing a design, wherein the end face includes a substrate onto one face of which said design is applied, wherein said substrate is mounted so as to move in rotation in said head and wherein the crown further includes braking means arranged for holding said substrate in different angular orientations with respect to the head about the rotational axis of the crown.

2. A crown according to claim 1, wherein said braking means act via friction.

3. A crown according to claim 2, wherein said braking means comprises an elastic annular element.

4. A crown according to claim 3, wherein said annular element is elastic in a direction parallel to the rotational axis of the crown.

5. A crown according to claim 1, wherein said braking means are formed by an annular joint made of a compressible material.

6. A crown according to claim 1, wherein the central portion is added onto the head, wherein said central portion includes a tube fitted with a disc at one of its ends, wherein said substrate includes an annular edge and wherein said substrate is gripped axially via its edge between the disc and the head.

7. A crown according to claim 6, wherein said braking means are arranged between the disc and the substrate.

8. A crown according to claim 1 of the screw-on type.