Watch strap with a catch, particularly articulated strap

A watch strap with a catch, particularly an articulated strap interconnected by hinge joints, comprising strap links and catch parts of substantially uniform thickness;

• one catch part at one end of the strap having a substantially C-shaped configuration defining a recess, and the other catch part at the other end of the strap having an extension snugly fitting in the recess and being flush with the one catch part in a plane;
• a stop member arranged at the lower side of the extension of the other catch part to permit the insertion of the extension in the recess from the lower side of the strap only;
• the outline of the recess in the one catch part and of the extension in the other catch part having a hammer-like shape which prevents angular displacement between the two catch parts in said plane;
• hinge joints including hinge tubes which are secured to the assigned links and catch parts by laser-beam welding points;
• and the hammer-shaped extension on the other catch part being provided on its upper surface with a rotatable plate corresponding in outline to the hammer-like shape of the extension, so that upon turning of the plate by 90.degree. the latter overlaps the upper surface portions of the C-shaped catch part and prevents displacement of the extension in vertical direction.

A watch strap with a catch, particularly an articulated strap interconnected by hinge joints, comprising strap links and catch parts of substantially uniform thickness;

• one catch part at one end of the strap having a substantially C-shaped configuration defining a recess, and the other catch part at the other end of the strap having an extension snugly fitting in the recess and being flush with the one catch part in a plane;
• a stop member arranged at the lower side of the extension of the other catch part to permit the insertion of the extension in the recess from the lower side of the strap only;
• the recess and the extension having a shape which prevents angular displacement between the two catch parts in said plane;
• hinge joints including hinge tubes which are secured to the assigned links and catch parts by laser-beam welding points;
• the recess in the one catch part and the extension of the other catch part having each a shape of a square tilted by 45.degree. relative to the longitudinal sides of the strap;
• the square-shaped extension being provided on its upper surface with a square-shaped plate rotatable about the center axis of the extension, so that upon rotation of the plate about 45.degree. it overlaps upper surface portions of the C-shaped catch part and prevents the extension from displacement in vertical direction.

A watch strap with a catch, particularly an articulated strap interconnected by hinge joints, comprising strap links and catch parts of substantially uniform thickness;

• one catch part at one end of the strap having a substantially C-shaped configuration defining a recess, and the other catch part at the other end of the strap having an extension snugly fitting in the recess and being flush with the one catch part in a plane;
• a stop member arranged at the lower side of the extension of the other catch part to permit the insertion of the extension in the recess from the lower side of the strap only;
• the recess and the extension having a shape which prevents angular displacement between the two catch parts in said plane;
• hinge joints including hinge tubes which are secured to the assigned links and catch parts by laser-beam welding points;
• the extension having at its center a throughbore of a circular cross section, a shaft supported for rotation in the throughbore, said stop member being in the form of a circular plate secured to the lower end face of the shaft and exceeding the perimeter of the recess in the one catch part, and an arresting plate secured to the upper end face of the shaft to permit, in one angular position of the shaft, the insertion of the extension in the recess and to overlap, in another angular position of the shaft, the upper surface of the C-shaped catch part so as to prevent displacement of the extension in vertical direction.