EP 3997526 A1 20220518 - WATCH ASSEMBLY HAVING AT LEAST TWO CONTACTING ELEMENTS
Title (en)
WATCH ASSEMBLY HAVING AT LEAST TWO CONTACTING ELEMENTS
Title (de)
UHRENANORDNUNG MIT MINDESTENS ZWEI KONTAKTELEMENTEN
Title (fr)
ENSEMBLE HORLOGER D'AU MOINS DEUX ÉLÉMENTS EN CONTACT
Publication
Application
Priority
- EP 19185385 A 20190710
- IB 2020056500 W 20200710
Abstract (en)
[origin: WO2021005564A1] The present invention provides a watch assembly comprising at least two contacting elements (1) which are movable relative to one another, one of the elements having at least a first contact surface intended to rub against at least one second contact surface of the other element under dry lubrication conditions. At least one of the first and second contact surfaces (2) is covered with a hydrophobic coating (3) having a contact angle with water greater than 90°, preferably greater than 100°, and preferably greater than 110°, and a friction coefficient less than 0.15, preferably less than 0.12, and preferably less than 0.1, the variation of the friction coefficient according to the relative humidity being less than 25%, preferably less than 10%, and preferably less than 5%.
IPC 8 full level
G04B 31/08 (2006.01); B05D 1/18 (2006.01); C10M 105/76 (2006.01); G04B 15/14 (2006.01)
CPC (source: CN EP US)
B05D 1/18 (2013.01 - CN); B05D 1/36 (2013.01 - EP); B05D 5/08 (2013.01 - EP); C10M 105/76 (2013.01 - CN EP US); G04B 15/14 (2013.01 - CN EP US); G04B 31/08 (2013.01 - CN EP US); B05D 1/32 (2013.01 - EP); B05D 2202/00 (2013.01 - EP); B05D 2518/10 (2013.01 - EP); C10M 2227/04 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/06 (2013.01 - EP US); C10N 2050/023 (2020.05 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021005564 A1 20210114; CN 114041089 A 20220211; CN 114041089 B 20240126; EP 3997526 A1 20220518; JP 2022539654 A 20220913; US 11927919 B2 20240312; US 2022260955 A1 20220818
DOCDB simple family (application)
IB 2020056500 W 20200710; CN 202080038972 A 20200710; EP 20740413 A 20200710; JP 2021568819 A 20200710; US 202017624962 A 20200710