Importance

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Abstract

The invention deals with an adjustable wrench comprising: a first jaw (8) and a second jaw (10) movable relative to the first jaw (8), wherein the second jaw (10) comprises a rack (12), a worm gear (18) movable into an engaged position wherein the worm gear (18) engages the rack (12) and wherein a rotation of the worm gear (18) causes the second jaw (10) to move relative to the first jaw (8), and into a disengaged position wherein the worm gear (18) does not engage the rack (12), a body (2) defining two surfaces, one of the surfaces comprising a first portion (14a) and a second portion (14b), the other surface comprising a third portion (16a) and a fourth portion (16b), the first portion (14a), the second portion (14b), the third portion (16a) and the fourth portion (16b) comprising a first point (140a), a second point (140b), a third point (160a) and a fourth point (160b) respectively, a biasing element (20) configured to urge the worm gear (18) toward the engaged position by applying forces on both surfaces, the biasing element (20) simultaneously contacting the first point (140a) and the third point (160a) when the worm gear (18) is in a position comprised between the engaged position and an intermediate position, and simultaneously contacting the second point (140b) and the fourth point (160b) when the worm gear (18) is in a position comprised between the intermediate position and the disengaged position, wherein the angle of incline (α) of the first portion (14a) at the first point (140a) relative to the third portion (16a) at the third point (160a) is greater than the angle of incline (β) of the second portion (14b) at the second point (140b) relative to the fourth portion (16b) at the fourth point (160b).

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First Claim