Patent ID: 7168644
Filing Date: 2007-01-30
Classification: B02C

Abstract:
1. A jaw crusher comprising: a fixed jaw; a swing jaw which swings relative to the fixed jaw; a reaction force receiver mechanism comprising: (i) a toggle plate that is angled upward toward the swing jaw and includes a first end that contacts the swing jaw, and (ii) a toggle plate support member that contacts a second end of the toggle plate; and a toggle plate holder mechanism which comprises: (i) a link member that holds the toggle plate between the swing jaw and the toggle plate support member, and (ii) a biasing portion which is coupled to the toggle plate support member and which biases the swing jaw and the toggle plate support member to the toggle plate; wherein the reaction force receiver mechanism comprises an outlet clearance adjustment mechanism which moves the swing jaw with respect to the fixed jaw to adjust an outlet clearance between the jaws by adjusting a position of the toggle plate support member and the toggle plate; wherein the link member comprises a tension link including a first end coupled to the swing jaw, and the toggle plate holder mechanism further comprises: wherein swing centers at two sides of the tension link are positioned in a vicinity of swing centers at two sides of the toggle plate.