Valve orientation device for timepieces

Patent metadata

Field	Value
Publication number	US-10895847-B2
Application number	US-201816052746-A
Country	US
Kind code	B2
Filing date	Aug 2, 2018
Priority date	Sep 1, 2017
Publication date	Jan 19, 2021
Grant date	Jan 19, 2021

Abstract

An orientable valve including a device for adjusting the angular orientation of the valve head with respect to the watch case, wherein the device for adjusting the angular orientation of the valve head includes a friction ring disposed between the valve head and the upper step, the friction ring rotates integrally with the shaft and is free in translation with respect to the shaft, the friction ring has a cylindrical external friction surface in friction contact with an internal wall of the tube, and wherein the shaft includes, in its distal portion, a device for actuating the latter in rotation making it possible to pivot the valve to adjust the angular orientation of the valve head.

First claim

What is claimed is:

1. An orientable valve device comprising:
a valve provided at a proximal end with a valve head integral with a central shaft terminating in a distal end, a front face of said head comprising a logo or a trademark,
a tube intended to be assembled to a watch case, the shaft being arranged to be able to move in translation along its longitudinal axis in said tube, the tube comprising an inner shoulder defining an upper step and a lower step and delimiting a first upper space inside which is housed the valve head and a second lower space defining a passage connected to the interior of the watch case and into which extends one portion of the central shaft,
a sealing gasket surrounding the central shaft to ensure the seal between the shaft and an internal wall of the tube,
a return spring surrounding the shaft portion housed inside the passage and extending between the lower step and a stop member arranged at the distal end of the valve shaft so as to hold the valve head in abutment against the gasket, and
a device for adjusting the angular orientation of the valve head with respect to the watch case, wherein
said device for adjusting the angular orientation of the valve head includes a friction ring arranged concentrically around the central shaft, between the valve head and the stop member,
wherein the friction ring rotates integrally with the shaft and is free in translation with respect to the shaft,
wherein the friction ring includes an external friction surface in friction contact with an internal wall of the tube,
and wherein said device for adjusting the angular orientation of the valve head includes means for rotational actuation of the valve head making it possible to pivot the valve against the frictional forces generated by the friction ring in order to adjust the angular orientation of the valve head.

2. The orientable valve device according to claim 1 , wherein the actuating means are arranged in the distal portion of the central shaft.

3. The orientable valve device according to claim 2 , wherein the actuating means also form the stop member for the return spring.

4. The orientable valve device according to claim 2 , wherein the actuating means is a nut.

5. The orientable valve device according to claim 1 , wherein the actuating means includes a slot.

6. The orientable valve device according to claim 5 , wherein the slot is arranged in the distal end of the shaft or in the nut.

7. The orientable valve device according to claim 1 , wherein the friction torque generated by the friction ring inside the tube is greater than the screw torque of the nut on the shaft.

8. The orientable valve device according to claim 1 , wherein the friction ring is arranged between the sealing gasket and the upper step.

9. The orientable valve device according to claim 1 , wherein the friction ring includes an opening of polygonal shape and wherein the shaft has a polygonal cross section complementary to said opening to make the shaft integral in rotation with the ring.

10. The orientable valve device according to claim 1 , wherein the friction ring is disposed in said first upper space.

11. The orientable valve device according to claim 1 , wherein the friction ring is disposed in said second lower space.

12. The orientable valve device according to claim 1 , wherein the sealing gasket is arranged between the valve head and the upper step of the tube.

13. A watch case comprising an orientable valve device including:
a valve provided at a proximal end with a valve head integral with a central shaft terminating in a distal end, a front face of said head comprising a logo or a trademark,
a tube intended to be assembled to a watch case, the shaft being arranged to be able to move in translation along its longitudinal axis in said tube, the tube comprising an inner shoulder defining an upper step and a lower step and delimiting a first upper space inside which is housed the valve head and a second lower space defining a passage connected to the interior of the watch case and into which extends one portion of the central shaft,
a sealing gasket surrounding the central shaft to ensure the seal between the shaft and an internal wall of the tube,
a return spring surrounding the shaft portion housed inside the passage and extending between the lower step and a stop member arranged at the distal end of the valve shaft so as to hold the valve head in abutment against the gasket, and
a device for adjusting the angular orientation of the valve head with respect to the watch case,
wherein said device for adjusting the angular orientation of the valve head includes a friction ring arranged concentrically around the central shaft, between the valve head and the stop member,
wherein the friction ring rotates integrally with the shaft and is free in translation with respect to the shaft,
wherein the friction ring includes an external friction surface in friction contact with an internal wall of the tube, and
wherein said device for adjusting the angular orientation of the valve head includes means for rotational actuation of the valve head making it possible to pivot the valve against the frictional forces generated by the friction ring in order to adjust the angular orientation of the valve head.

Assignees

• Omega Sa

Inventors

• Loetscher Philippe

Classifications

• G04B37/08 Primary

  Hermetic sealing of openings, joints, passages or slits {(covers or protecting devices which can be directly removed, or by sliding or turning G04B37/005; hermetic sealing of watch or crystal with special pieces G04B39/02; hermetically-sealed electrical switches H01H23/06)} · CPC title

• F16K17/04

  spring-loaded · CPC title

• G04B37/02

  Evacuated cases; Cases filled with gas or liquids; Cases containing substances for absorbing or binding moisture or dust · CPC title

• G04B37/084 Primary

  Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown · CPC title

• F16K37/0008 Primary

  Mechanical means (F16K37/0075 takes precedence) · CPC title