Patent ID: 7264284

Claim:
A door catch, comprising a back plate for fixedly mounting on a wall and having two laterally symmetric sleeves formed on a front face thereof, and a steel ball and a spring sequentially mounted in each of said two sleeves, such that said steel balls are normally pushed forward by said spring to partially project from front open ends of said sleeves for tightly clamping between said two steel balls a stop post, which is mounted on a back of a door leaf corresponding to said back plate; wherein an elastic check member is mounted in a rear end of each of said sleeves to be held in place immediately behind said spring, so that said spring elastically pushes said steel ball forward to partially project from the front open end of said sleeve, and elastically pushes said elastic check member backward to firmly press against the rear end of the sleeve without the risk of backward moving out of said sleeve, said elastic check member is substantially a concaved circular member having a plurality of radially extended slits spaced along an outer periphery of said elastic check member, so that said elastic check member expands when compressed and easily mounts in the rear end of said sleeve without the risk of backward moving out of said sleeves.