Patent ID: 8919295

Claim:
A collar configured to be worn by animals and to connect a leash thereto, comprising: a plurality of normal chain links, each normal chain link having a hook portion defining a cross-sectional dimension and a hook-in portion, wherein the hook-in portion comprises a window dimensioned to fit the hook portion therein, such that the window is oversized relative to the cross-sectional dimension of the hook portion by 5 to 100%, and an edge portion defined between the window and a rear end of the hook-in portion coinciding with a rear end of the normal chain link, and the hook portion comprises a curved S-shaped hook web, wherein each normal chain link is produced by bending a piece of sheet-metal blank about bending lines of said piece, each piece of sheet metal blank having a first end portion and an opposing second end portion, wherein the second end portion coincides with the rear end of the hook-in portion and chain link; a single intermediate chain link produced from a sheet-metal blank having two intermediate-link windows that are separated from each other, constructionally identical to the windows of the hook-in portions and configured to prevent disengagement of said hook portion from the intermediate-link windows through a lateral edge of the intermediate chain link, and adjacent to a respective opposing end of the intermediate link, a main portion extending in a single plane from one of the intermediate-link windows to the other of the intermediate-link windows, and two intermediate-link edge portions each defined between a window and the respective opposing end of the intermediate link adjacent thereto, and two constructionally identical final chain links each produced by bending a piece of sheet-metal blank about bending lines of said piece, wherein each final chain link includes an opening that is sufficiently large and configured to connect an animal leash thereto, and a hook portion comprising a curved S-shaped hook web constructionally identical to each of the S-shaped hook webs of the normal chain links and configured to fit into the window of an adjoining one of the normal chain links or the intermediate chain links.