Hand rotating around two axes

Patent metadata

Field	Value
Publication number	US-11625005-B2
Application number	US-202016991276-A
Country	US
Kind code	B2
Filing date	Aug 12, 2020
Priority date	Sep 13, 2019
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

A display mechanism of a watch including at least one indicator member and a drive member assembly. The indicator member is mounted to rotate about a first axis of rotation and is configured to indicate a time. The indicator member also has a second axis of rotation extending along the indicator member and a rotary element mounted to rotate about the second axis of rotation. The drive assembly includes a first drive member and a second drive member such that the first drive member drives the rotary element when it is moving about the first axis of rotation.

First claim

The invention claimed is:

1. A display mechanism for a watch, said display mechanism comprising at least:
at least one indicator member being mounted to rotate about a first axis of rotation via a first part, and being configured to move relative to a dial so as to indicate a first piece of information; said at least one indicator member being mounted to rotate about a second axis of rotation intersecting said first axis of rotation and extending longitudinally along said at least one indicator member and comprising at least one rotary element mounted to rotate about said second axis of rotation via a second part so as to indicate at least one second piece of information;
at least one drive member assembly comprising at least one first drive member and at least one second drive member, said at least one second drive member being arranged on or in said at least one rotary element at a first end of the rotary element, and being driven by said at least one first drive member;
said at least one first drive member being configured to cooperate and directly engage with said at least one second drive member in such a way as to drive said at least one rotary element in a rotational movement via said at least one second drive member,
when said at least one indicator member is rotatable about said first axis of rotation and/or when said at least one drive member is rotatable about said first axis of rotation,
wherein said at least one indicator member is a second hand, a minute hand or an hour hand, and
wherein said at least one drive member assembly comprises a universal joint and at least one third drive member, said at least one third drive member being arranged at a second end of the rotary element opposite to the first end.

2. The display mechanism according to claim 1 , wherein said at least one first drive member is respectively integral with said dial, the second hand, the minute hand or the hour hand.

3. The display mechanism according to claim 1 , wherein said first part is a barrel and/or said second part is the second axis of rotation and extends longitudinally along said at least one indicator member.

4. The display mechanism according to claim 1 , wherein said at least one drive member assembly is at least one gear assembly comprising at least one first gear member and at least one second gear member, at least one micro-bearing assembly comprising at least one first micro-bearing and at least one second micro-bearing, and/or at least one bearing assembly comprising at least one first bearing and at least one second bearing.

5. The display mechanism according to claim 1 , wherein said at least one rotary element is a counterweight of a second hand, a counterweight of a minute hand or a counterweight of an hour hand and wherein said at least one indicator member is said second hand, said minute hand or said hour hand.

6. The display mechanism according to claim 1 , wherein said second axis of rotation is coplanar with said dial and said first axis of rotation is in a different plane from said second axis of rotation.

7. The display mechanism according to claim 1 , wherein said at least one third drive member drives said second hand, said minute hand or said hour hand about the first axis of rotation.

Assignees

• Swatch Group Res & Dev Ltd

Inventors

• Nicolas Cedric
• Springer Simon
• Odeh Ahmad
• Willemin Michel

Classifications

• G04B19/042

  Construction and manufacture of the hands; arrangements for increasing reading accuracy (hands with illumination G04B19/305; specially shaped hands, e.g. figures or pictures G04B45/0061; clockwork in the hands G04B45/043; invisible drive of the hands G04B45/046) · CPC title

• G04B45/003 Primary

  Inscriptions and pictures moved by hand (clockworks with abrupt time indication G04B13/00; adjustable hands or mechanisms G04B19/28; combination of clockwork with counter, e.g. for sports results G04B47/00; movable ornaments and decorations G04B47/044) · CPC title

• G04B19/04

  Hands; Discs with a single mark or the like {(moving indicating arrangements which have scales or numbers with stationary hands or reading means G04B19/20; optical projection of the position of the hands G04B19/34)} · CPC title

• G04B31/00

  Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor (bearings in general F16C {; manufacture and composition of springs G04B1/145; suspension of oscillating weights G04B5/18; suspension of a pendulum G04B17/02; bearings for electrical measurement apparatus G01R1/10, G01R1/12, G01R11/12, G01R11/14; inserting jewels A44C17/04; inserting cutting diamonds B23P5/00; devices for fixation of bearing jewels, bearing sleeves, or the like G04D3/04}) · CPC title

• G04B13/00 Primary

  Gearwork {(gearwork for driving the hands G04B19/02; calibers G04B33/00; dispositions and components for transmission in general F16H)} · CPC title