Patent ID: 7131354
Filing Date: 2006-11-07
Classification: B25B

Abstract:
1. A spanner comprising: an upper jaw including an upper jaw portion, and a pivot portion extending rearwardly of said upper jaw portion, and having a front pivot hole and a rear pivot hole both of which extend through said pivot portion, said front pivot hole being disposed between said upper jaw portion and said rear pivot hole; a handle having a connection end extending into said pivot portion and connected pivotally to said upper jaw at said rear pivot hole; a lower jaw having a lower jaw portion spaced apart from said upper jaw portion, a tail portion opposite to said lower jaw portion and extending toward said connection end of said handle, and an insert part disposed between said lower jaw portion and said tail portion and projecting into said pivot portion of said upper jaw, said insert part being connected pivotally to said upper jaw at said front pivot hole; and a resilient member disposed between said tail portion and said connection end to bias said tail portion away from said connection end so that said lower jaw portion is biased toward said upper jaw portion, wherein said pivot portion of said upper jaw is bifurcated to form first and second plate portions, each of said front and rear pivot holes extending through said first and second plate portions, said connection end and said insert part extending between said first and second plate portions.