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US 4,794,577 AGranted
Watch middle and wristlet assembly
AssigneeETA SA Fabriques d'Ebauches
InventorClement Meyrat
Life of this patent
Estimating the term…
Abstract
To avoid having to pierce them, which would be detrimental to their mechanical resistance to pull, the end portions (5, 6) of the wristlet are retained in slots (3, 4) provided in the watch-case middle (1) by pins (7, 8) partly accommodated in grooves (9, 10) formed in one surface of the slots (3, 4).
Claims10
An assembly comprising:
- (a) a watch-case element including a middle bounded by a lower surface, an upper surface and an edge surface, and formed with a recess, said recess having an opening in said edge surface and being separated from one of said lower and upper surfaces by a wall;
- (b) a wristlet having an end portion accommodated in said recess;
- and,
- (c) means for retaining said end portion in said recess including an elongated retention element extending in a direction substantially parallel to one of said upper and lower surfaces and substantially perpendicularly to the length of said wristlet, said retention element extending through said recess and cooperating with said middle for urging said end portion of said wristlet against said wall and for providing thereby frictional forces between said end portion of said wristlet and corresponding portions of said wall and said retention element respectively, said frictional forces alone causing said end portion of said wristlet to be retained in said recess.
1 more element
An assembly comprising:
- (a) a watch-case element including a middle bounded by a lower surface, an upper surface and an edge surface, and formed with a recess, said recess having an opening in said edge surface and being separated from one of said lower and upper surfaces by a wall;
- (b) a wristlet having an end portion made of a compressible material, said end portion being accommodated in said recess;
- and
- (c) means for retaining said end portion in said recess including an elongated retention element extending in a direction substantially parallel to one of said upper and lower surfaces and substantially perpendicularly to the length of said wristlet, said retention element extending through said recess and cooperating with said middle for so deforming said end portion of said wristlet that it is forcedly urged against said wall, that frictional forces are provided between said end portion of said wristlet and corresponding portions of said wall and said retention element respectively, and that said frictional forces alone cause said end portion of said wristlet to be retained in said recess.
1 more element
An assembly comprising:
- (a) a watch-case element including a middle bounded by a lower surface, an upper surface and an edge surface, and formed with a recess, said recess having a first opening in said edge surface and being separated from one of said lower and upper surfaces by a wall;
- (b) a wristlet having an end portion accommodated in said recess;
- and,
- (c) means for retaining said end portion in said recess including a cavity in said middle intersecting said recess and comprising a second opening in said edge surface, and an elongated retention element extending in a direction substantially parallel to one of said upper and lower surfaces and substantially perpendicularly to the length of said wristlet, said retention element being disposed in said cavity and extending through said recess for urging said end portion of said wristlet against said wall and for providing thereby frictional forces between said end portion of said wristlet and corresponding portions of said wall and said retention element respectively, said frictional forces alone causing said retention element to be retained in said cavity and said recess and the end portion of said wristlet to be retained in said recess.
1 more element
Dependencies are inferred from the claim text.