Device for attaching the extremity of a link to an object, particularly a watch

A device for attaching the end of a strap-like member, notably a bracelet, to an object, notably a watch, comprising a housing (1, 16, 31) provided with two latch pins (3, 18, 33) adapted to be received in facing recesses of the object, one of these pins being able to occupy two positions, a first position in which it protrudes from said housing to come to engage in one of said recesses of the object, and a second position in which it is retracted, biasing means (4, 19, 32) tending to return this pin into one of these two positions, and a movable control member (10, 20, 35) accessible from outside the housing (1,16, 31) associated with a cam (10b, 20a, 35b) for moving this pin (3,18, 33) into the other of said positions against the action of said biasing means (4, 19, 32), characterized by the fact that the pin (3,18, 33) able to occupy two positions is slidably mounted along a common axis of the two pins (3, 18, 33), and the movable control member (10, 20, 35) is solid with said cam (10b, 20a, 35b) engaging with the inner end (39, 18b, 34) of one of the pins (10b, 20b, 35b) which inner end is applied against this cam (10b, 20b, 35b) by said biasing means (14, 19, 32) such that movement of said control member (10, 20, 31) brings this pin (3, 18, 33) into the other of said positions against the pressure exerted by said biasing means (4,19, 32), characterized by the fact that said movable control member (10, 35) is constituted by a push-piece movable along an axis perpendicular to the sliding axis of said pin (3, 32), said cam being solid with the internal end of this push-piece, and characterized in that said push-piece (35) comprises a generally cylindrical body whereof the part normally protruding from the exterior of said housing has at least one abutment member (35c) protruding radially from the cylindrical surface of said body, the section of said lateral opening (37) corresponding to the transversal section of said push-piece level with said abutment (35c), in a manner to allow displacement of said push-piece (35) only in a position where the section of said opening (37) and that of said push-piece (35) adjacent to the level of said abutment coincide angularly.

A device for attaching the end of a strap-like member, notably a bracelet, to an object, notably a watch, comprising a housing (1, 16, 31) provided with two latch pins (3, 18, 33) adapted to be received in facing recesses of the object, one of these pins being able to occupy two positions, a first position in which it protrudes from said housing to come to engage in one of said recesses of the object, and a second position in which it is retracted, biasing means (4, 19, 32) tending to return this pin into one of these two positions, and a movable control member (10, 20, 35) accessible from outside the housing (1, 16, 31) associated with a cam (10b, 20a, 35b) for moving this pin (3, 18, 33) into the other of said positions against the action of said biasing means (4, 19, 32), characterized by the fact that the pin (3, 18, 33) able to occupy two positions is slidably mounted along a common axis of the two pins (3, 18, 33), and the movable control member (10, 20, 35) is solid with said cam (10b, 20a, 35b) engaging with the inner end (39, 18b, 34) of one of the pins (10b, 20b, 35b) which inner end is applied against this cam (10b, 20b, 35b) by said biasing means (14, 19, 32) such that movement of said control member (10, 20, 31) brings this pin (3, 18, 33) into the other of said positions against the pressure exerted by said biasing means (4, 19, 32), characterized by the fact that said movable control member (10, 35) is constituted by a push-piece movable along an axis perpendicular to the sliding axis of said pin (3, 32), said cam being solid with the internal end of this push-piece, and characterized by the fact that said housing (1) has a substantially cylindrical shape, the common axis along which at least one of said pins (3) is slidably mounted being parallel to the longitudinal axis of said housing (1), and the lateral opening (5) provided in said housing (1) to allow passage of said push-piece (10) being provided at the location where the wall of the cylindrical housing (1) is thinnest, whereas a cylindrical passageway (6) is provided in the thicker part of this wall facing said opening (5), and serves to guide said cam (10b) solid with this push-piece (10), a removable closure member (7) closing the external end of this passageway (6) and serving as bearing surface for the spring (11) associated with said push-piece (10).